Thursday, October 31, 2019

My opinion about Alternative Worlds Article Example | Topics and Well Written Essays - 1250 words

My opinion about Alternative Worlds - Article Example Megatrends describe the major and progressive changes that will define and shape the world in the near future. The world in 2030 will certainly be a lot different than the world at present as different factors, including individuals’ position, ownership of power, demography, and availability of food, water and energy, would have changed. According to the article, the major trends in the near future are likely to concern individual empowerment, diffusion of power, demographic patterns, and growing food, water and energy nexus. Each of these megatrends is discussed as below. Individual Empowerment refers to the individualistic power that people in future are likely to possess as compared to the present. In the next 15 to 20 years, the level of poverty is likely to reduce thus causing a rise in the number of people categorised as middle class in the entire world. Also, such people would be more educated, have access to modern communications and manufacturing technologies, as well as live in a world with better health-care facilities. This trend is significant as it determines the amount of power that an individual possesses. Unlike the present where individual power is limited, this trend will give people much say in matters that affect them. Diffusion of power describes power shift from powerful states such as United States and Europe, to other emerging economies in the world such as China and Brazil, and finally to non-state groups or coalitions. As other economies grow, it will be difficult for some few states such as the U.S. to assume total power. In addition, emergence of groups that own most factors of production and communication networks will cause power to further shift from states to amorphous coalitions. This trend is significant as powerful states such as United States will lost much of the power to the other players in global leadership. The third megatrend is in demographic patterns and this describes the composition and the nature of the

Tuesday, October 29, 2019

Bioethics Assignment Example | Topics and Well Written Essays - 2500 words

Bioethics - Assignment Example Weight measurements will be taken, and these can be compared with results from the literature about what is healthy and normal for the particular breed of dog. Secondly, energy levels will be measured, again based upon what is normal for the breed. This will be subjective and assessed by trainers who do not know which diet the puppies are taken, to make sure there is no bias. Finally, blood pressure measurements will be taken weekly throughout the course of the experiment to ensure that the puppies are healthy and to avoid ethical problems of the experiment. Another important part of designing a scientific experiment is to work out the participants, or the ‘sample’. Scientific studies work best with larger sample sizes to eliminate bias (Shannon & Kockler, 2009). When working with dogs, it can be beneficial to use a variety of breeds to ensure that the hypothesis and results can be applied to all dogs. Therefore it was decided that 100 dogs would be tested, 50 on each diet. 25 different breeds (or combination of breeds in mongrels) will be used, so that 2 of each breed will be taking part in each diet group. It is important to randomize the dogs that are chosen to go on each diet. Grouping each breed as a four and then randomly assigning them a diet is the best way of doing this (Shannon & Kockler, 2009). It is important that each one follows the diet strictly for the four weeks of the experiment, as any deviation from this could cause a false result. This means the dogs must be observed at all times to ensure that they do not eat any food from another dog’s meal. Each dog must also have the same amount of exercise and be housed in the same size kennel as the other dogs from that breed to ensure fairness when measuring the results. Differences in exercise could cause a major difference in the weight measurement particularly, and this would be a confounding variable. Each dog would also have to take their meals at

Sunday, October 27, 2019

The Meaning Of Life Quotes

The Meaning Of Life Quotes As you all know we all are here in this planet for a while only and our life or being born as a human is a gift irrespective of which race,creed and place you belong to.I believe that being born as a human one has to go through a mother of all possibilities of creation criterion,so I strongly believe that there is one unimaginable intelligent mind behind this creation.We are here to understand his purpose and his views.So lets make this world better like a heaven or at least we can put our best effort to do so in our small span of life,so as our future generation can see what we have once conceived and believed in. The Meaning Of Life If you try to find the meaning of life into the process of evolution, you will see that everything is in fact the fruit of evolution-not necessarily Darwinian evolution process. Evolution can be in our thinking, in our social life, in our economical life, in religious life and many more. Though we do not have any hard evidence that if the physical evolution is going on slowly or it has just stopped forever, but one thing is sure that mentally we are evolving everyday when we experience new ideas in our daily life. Perhaps evolution is the only process that we depend on for our survival; we simply cannot survive without going through some kind of evolution. We all love history. if you look back to our ancestors history you will easily notice that they used to be afraid of natural phenomena and calamities. The used to consider Mother Nature as our creator, and thought that god lives somewhere up on the sky. Many of us, still, when think about god, look at the sky, thinking that god is somewhere up in space. Perhaps, the majority of the people think God knows everything, believe that surely He can answer what is in his mind and what he only knows the true meaning of life. Actually, we need to find and make our own meaning of life, exactly the way we find peace living in a safe place, with trusted people. Life means go on, it never stops unless your life end. We humans are just walking the walk of life, where someone try to explore their life in their own way, while the others follow the path of great leaders or religious path to find meaning in life. Whatever is the meaning of life is, one thing is sure that we have human values and we al l like to live peaceful life, regardless of our genetically identity. Meaning of Life Quotes * Life is such a kind of game where there is no wining or no losing, every one just play his part and the most important is how well a person can adapt his role in this game. * We cannot blame the ONE for our fate , because in some way we are responsible for our own fate or maybe we just failed to adapt the way we have been gifted with life. * Life cannot be better than the way it is , can you imagine a better way than this * If I had given the power then I would try to see if the ONE is planning for any other from of life which is better than this .how better it can be. * Try to be a true friend of your fiancee or wife If you get married to your loved one and desire a long term faithful relationship, then imagine your wife as your best friend and give enough space to her to develop trust and faith in you. Whenever you bring up the so spouses commitment things to your relationships it becomes fragile. Try to think how come people remain friends till the end of their life and why there is breakup even within a few weeks of marriage. * Never think of marriage if your mind is unsure of a long term relationship with the one you are in love with. Try to find out if you are infatuated with some one or in real love with someone and the best way to find it by living together with her. When we grow up we find less time for parents and even someone do not want to meet time. But when you come to the end time of your life, you will ultimately feel the need and place of a child in your life. So, please keep a few minutes at least in a week for your parents and let them feel that you are their greatest pride and strength. * Death is the mother of all pleasure, if there were no option of death life would be meaningless to us-CYRUS * Mind is the workshop where you create thoughts which drive you to imagine or conceive a plan , and in real life we are just the reflection of our imaginations which we never can exceed, we are always remain equal to or less than our imagination.-CYRUS * If you have a fragile relationship with your wife and really wanna fix it or wanna sustain you marriage, then just live a month both of you separate and keep cherishing the wonderful memories you both shared together and the moments when both used to admire each other. I am sure after a month you dont have to worry about break-up.In fact it works all type of relationships. * Have you ever thought how many times a day you really compliment to your wife, fiancee or family members or even to your colleagues? If you really wanna invest for your future then start complementing to your fellows, no matter it is for how small things. In time of need it will pay you back and strengthen you courage to confront any difficulties of life. The Meaning of Life: Growth and Learning Still, I am looking for a true convincing meaning of life, perhaps our effort of finding the real meaning is the key of our living, which truly has no limit, no ending, no horizon. Sometimes, I find trying to find the purpose of life is as just as meaningless of beating the bush-so, better keep learning and enjoy the the full with lots of confidence, honor and honesty as long as possible. In the journey of life we never forget the true virtue we inherit from our ancestors-those teachings are invaluable and help us always to take our step beyond our present status as human. We, all know death is running behind us and gradually we all are falling behind the trap of time.Lets live a peaceful life from every aspect of our point of view. Thank you all:)

Friday, October 25, 2019

Kmart SWOT Essay -- essays research papers

Kmart started off on the right foot back in 1899 and was a major player in supplying goods to the consumers from their small five and dime stores. From there they started to expand, they were a provider of low-cost merchandise but once the competition (Wal-Mart and Target) started opening they started loosing the fight. Since that time they have been through many changes and many hard times. By 1962 they started opening full line discount stores which continued to help the company succeed. From 1980 - 2002 five different CEOs ran the company. Some of their strategies were focused on the same track as the one before them while others had to change direction entirely in order to fight to turn the company around. Kmart has suppliers that they order their goods from so they can keep their shelves stocked. They do not make any of their own products however they do try to differentiate themselves by selling exclusive brands that include Thalia Sodi, Jaclyn Smith, Joe Boxer, Martha Stewart , and Sesame Street. Kmart ¡Ã‚ ¦s strategy has changed a few times since they started out and may continue to change in order to succeed. They have faced bankruptcy in the past and have fought to continue to compete against their competitors. Kmart has many competitive and environmental forces impacting the industry today. As all organizations do some or these forces are opportunities for them while others are threats to the organization. A few of the forces are their rivals or competitors, the substitutes that can be used, and the new entrants into the market. The main rivals among the merchandising companies are Wal-Mart, Kohls, Family Dollar and Target among many more. Wal-Mart and Target are their main rivals, this is because Wal-Mart is known for their niche as having the lowest prices and Target is known for their fashions and home furnishings both of these items Kmart tries to compete against. Also buyers see Kmart as a discount store which doesn ¡Ã‚ ¦t stand when other competitors have lower prices. Kmart ¡Ã‚ ¦s customer service and available products are two other items that Kmart fails to be a strong competitor in against these rivals. Therefore, the rivalry among the merchandising stores is a strong competitive force in this market. Another external force that affects the market is substitutes. Substitutes are the items a customer can buy to replace the items they purch... ...o the picture. By getting rid of their food items they would also have more room on the shelves to stock the much more requested items that customers want. Since Kmart is up against a couple well known companies they are going to need to stand out. They have their exclusive brands which is great if that is what the customer wants. They need to really push these items by marketing (TV spots and newspapers) so the consumer feels they need to have these items. They also need to put standards in place so that anytime research is done there is a project team put together to implement what changes need to be completed. Their strategy to win back the customer is failing because they are not implementing the needed changes. Instead they are closing down stores and not remodeling the ones that are still in business. They are loosing the market share to both Target and Wal-Mart because they are so focused on how to make another buck that they are not focusing on what really matters, the cu stomers. Until the customers are satisfied with the stores product (being on shelves), the service they receive and the location and shape of the stores they will not return as loyal customers to Kmart.

Thursday, October 24, 2019

How Agriculture Can Be Used to Combat Climate Change in Developing Countries

GLOBAL ENVIRONMENTAL ISSUES ESSAY ON THE ROLE OF AGRICULTURE IN COMBATING CLIMATE CHANGE IN DEVELOPING COUNTRIES PRESENTED BY; MWAURA PHILIP W DATE; 25TH MARCH 2013 INTRODUCTION Climate change is now recognised as one of the most serious challenges facing the world – its people, the environment and its economies. There is now clear scientific evidence that the high concentration of greenhouse gases (GHGs) in the atmosphere is causing global warming. While the world has experienced climatic changes before, the issue we now face involves human influence.It is a challenge that must and can be dealt with because its impacts will have very dire consequences on us and the generations to come. Greenhouse emmissions results from various sources in our societies. We have emmissions from industries and other human activities such as agricultural practises. It is believed that most global warming we can now observe is attributable to emissions of GHGs that result from human activities, i n particular land use changes such as deforestation, and the burning of fossil fuels (coal, oil and gas).All these activities are human influenced and thus something needs to be done at the local, regional and globals levels. This essay highlights the role of agriculture in tackling climate change and some of the mitigation and adaptation measures. CLIMATE CHANGE AND AGRICULTURE The Inter-governmental Panel on Climate Change(IPCC) define climate change as the term generally used to describe human influences on the climate. The most significant threat is the emission of greenhouse gases (GHGs), which contribute to the ‘greenhouse effect’.The greenhouse effect is a natural mechanism essential to life on Earth, but human activity has altered the balance in the mechanism. Radiant energy emitted by the sun comes through the Earth’s atmosphere and warms its surface. This heat then radiates back into the atmosphere, but some of the sun‘s heat is absorbed in the at mosphere by gases. With increasing concentration of GHGs, this effect is amplified, thus increasing the Earth‘s temperature. There is now little doubt that climate change is happening. Most of the observed increase in globally averaged temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations. The observed widespread warming of the atmosphere and ocean, together with ice mass loss, support the conclusion that it is very likely that it is not due to known natural causes alone†. These are some of the conclusions of the latest report of the Intergovernmental Panel on Climate Change (IPCC 2007). Countries and individuals acknowledge the extent of the climate change problem and have agreed that it exists and needs to be addressed.Agriculture can be defined as the spatial distribution of of crops and animals for commercial and subsistence purposes all over the earth’s surfaces. The Food and Agricul ture Organization (FAO, 2008) reports that agriculture and land-use change, such as deforestation, account for about 13 and 17 per cent, respectively of total GHG emissions from human activities. Changes in land use such as deforestation and soil degradation are two devastating effects of unsustainable farming practices that emit large amounts of carbon into the atmosphere, contributing to global warming.Agriculture is a major contributor to emmissions of methane (CH4), Nitrous oxide (N2O) and Carbon( iv)oxide (C02). On a global scale, agricultural land use in the 1990s has been responsible for approximately 15% of all the GHGs emmissions. One third of all carbon(iv)oxide comes from land-use changes such as shifting cultivation and intensification of agriculture whereas about two thirds of methane and most nitrous oxide emmisions originate from agriculture ( FAO, 2008). In addition to the direct agriculture emissions mentioned above, the production of agrochemicals is another import ant source of greenhouse gas emissions.Especially the life cycle of fertiliser contributes significantly to the overall impact of industrialized agriculture. The greatest source of GHG emissions from fertiliser production is the energy required, which emits carbon dioxide during its manufacture. Animal farming has a wide range of different impacts, ranging from the direct emissions of livestock, manure management, use of agrochemicals and land use change to fossil fuel use. Climate change presents a dual challenge which involves how to reduce GHG emissions through itigation, while lessening the adverse impacts by adaptation. These challenges are evident in the agricultural sector where a changing climate will have serious impacts on agriculture and food production. A rise in temperature will result into the following impacts( FAO 2008); * affect food supply dramatically by shifting crop growing zones; * change the habitats of pests; * increase risks of plant disease, insects and wee ds; * shrink the area of cropland due to floods; and * raise sea levels. Potential direct effects on agricultural systems: Seasonal changes in rainfall and temperature could impact agro-climatic conditions, altering growing seasons, planting and harvesting calendars, water availability, pest, weed and disease populations, etc. * Evapotranspiration, photosynthesis and biomass production is altered. * Land suitability is altered. * Increased Carbon(iv) oxide levels lead to a positive growth responsefor a number of staples under controlled conditions, alsoknown as the â€Å"carbon fertilization effect†. MITIGATION Agriculture offers options to reduce CHGs significantly.One of them is to reduce emmissions and thereby minimise the production of anthropogenic gases such as methane and carbon(iv)oxide whereas at the same time increasing food production to achieve food security especially in developing countries. Mitigation is a response strategy to global climate change, and can be defined as measures that reduce the amount of emissions (abatement) or enhance the absorption capacity of greenhouse gases (sequestration). The total global potential for mitigation depends on many factors, including emissions levels, availability of technology, enforcement, and incentives.In many situations, the efficiency of agriculture can be improved at a low cost. However, when low cost incentives are unavailable, policy development is important. Mitigating GHG emissions from the agricultural sector will be an important element of climate change and agriculture policy at the national and international levels, and especially so in developing countries where 75 per cent of poor people live in rural areas, most of whom depend on agriculture for their livelihoods directly or indirectly (World Bank, 2008).The Bali Action Plan (BAP), agreed to at COP 13 in December, 2007, identified four pillars to address in reaching a new agreement–mitigation, adaptation, technology developm ent and transfer, and financing and investment. The BAP calls for mitigation actions by all developed countries, including quantified GHG emission reductions objectives, as well as mitigation actions in developing countries, â€Å"that are supported and enabled by technology, financing and capacity building in a measurable, reportable and verifiable manner† (UNFCCC, 2007, p. 1).Agriculture could be an important component of a new climate change agreement, addressing two priorities of the BAP; * Mitigation ; Agriculture must play a role in climate change mitigation by storing carbon in soils, reducing its GHG emissions (for example, transportation and livestock) and providing fossil fuel offsets from biomass; and * Adaptation ; Agriculture must adapt to new climatic conditions (increased temperatures, drought, increased climatic variations, among others) to ensure a sufficient food supply for the world and contribute to the maintenance of rural livelihoods and viable rural eco nomies.Emission reductions in the agricultural sector can also be a meaningful way for many developing countries to contribute to the goal of the convention and participate in a future regime. The IPCC report estimates that 70 per cent of the mitigation potential in agriculture is in developing countries (Smith et al. , 2007). Sustainable agricultural practices that mitigate carbon can have important co-benefits, including increased soil fertility and productivity, enhanced resistance to drought and extreme weather, and better capacity to adapt to climate change.Sustainable agriculture can contribute significantly to increased food production, as well as make a significant impact on rural people’s welfare and livelihoods. Despite the significant potential and important sustainable development benefits, minimal progress has been made to capitalize on opportunities in this sector, mainly because of complexities, perceived or otherwise, around accounting, monitoring, verificatio n, non-permanence and other issues.Mitigation measures in the agricultural sector could contribute to substantial GHG emission reductions up to 2030 with potential ranges from 5 to 20 per cent of total Carbon(iv) oxide emissions by 2030. The global technical mitigation potential of agriculture, excluding fossil fuel offsets from biomass, is estimated to be between 5. 5 and 6 Gigatonnes Carbon(iv) oxide emmissions per year by 2030 (Smith et al. , 2007). However, actually meeting this potential is a complex issue with both technical and economic challenges.An estimated, 89 per cent of the total potential can be achieved by soil carbon sequestration through crop-land management, grazing land management, restoration of organic soils and degraded lands, bio-energy and water management (Smith et al. , 2007). Developed countries are discussing if agricultural soil carbon sequestration should be included in overall accounting of emissions and removals, and how to provide incentives in the a rea of agriculture for developing countries (UNFCCC, 2009).Intensity targets in the agricultural sector are also an issue, recognizing the fact that food production will need to increase to keep pace with rising populations and improvements in standards of living. Mitigation of Methane can provide an additional 9 per cent through improvements in rice management, and livestock and manure management. The remaining 2 per cent can be achieved from mitigation of Nitrous(ii)oxide emissions from soils mainly through crop management (Smith et al. , 2007).The wide diversity of agricultural practices around the world means there is a corresponding large array of possible mitigation opportunities. Agricultural Emissions Mitigation in Developing Countries Developing countries play a central role in agricultural GHG emissions mitigation. Without sufficient mitigation of GHG emissions in coming decades, including those from agriculture, there will likely be severe negative impacts on natural and human systems, including global food supply and food security, and developing countries are most at risk.The technical potential for GHG mitigation in developing countries’ agriculture by 2030 indicates significantopportunities for emissions reductions, together with anenhanced income earning potential for farmers, and associatedbenefits from lower natural resource degradation(Smith et al. , 2007). The agricultural sector is more vulnerable to climate change in developing countries than developed nations, which is a real concern because agriculture in developing countries is a major food provider.Agricultural practices must adapt to changing climatic conditions to ensure sufficient global food supply, while implementing management practices that have the greatest GHG emission reduction potential. Approximately 30 per cent of GHG emissions reduction potential from agriculture can be achieved in developed countries and 70 per cent in developing countries (Smith et al. , 2007).T he mitigation potential of developing countries is about 75 to 80 per cent of the global potential for soil carbon under bio-energy and the restoration of degraded lands; roughly 90 per cent for grazing land management; and 98 per cent for rice management, water management, set-aside management and agro-forestry. Approximately 89 per cent of the technical mitigation potential in the agricultural sector can be achieved through soil carbon sequestration and about two-thirds of this potential is in developing countries (Smith et al. , 2007).The largest mitigation potentials in agriculture are the restoration of cultivated organic soils and degraded lands, and rice management; developing countries have the largest mitigation potentials. Mitigation is generally most cost effective in developing nations. The Food Agriculture Organization report (2008) estimates that mitigation measures in developing countries through agriculture and forestry projects might cost about one-fourth to one-thi rd of total mitigation in all sectors and regions, while generating one-half to two-thirds of all estimated GHG emission reductions.With growing agricultural GHG emissions and the largest and most cost-effective mitigation opportunities in the agricultural sector, developing countries are likely to play a prominent role in efforts to reduce agricultural GHG emissions. However, these countries also have the greatest barriers to overcome. At the national level, agriculture may be eclipsed by other priorities in many developing countries, such as poverty alleviation. A lack of capacity and political will to encourage mitigation are also contributing factors, where efforts in the agricultural sector are mainly focused on securing food for a growing population.Agricultural policy is viewed by many countries as a sovereign right that is linked to food security, meaning that they are reluctant to open up this sector to any perceived control by an international body. Barriers are often coun try or region-related and understanding the situation in different countries is crucial to realizing the mitigation potential in the agricultural sector. Responses to climate change in these countries should involve measures that aim to reduce poverty and ensure food security (FAO, 2008). Developing countries will require technology ransfer,investment and financial support to implement relevant mitigation strategies in the agricultural sector. And these programs will need to be developed with full consideration of economic and sustainable development. Such programs will need to include methods for verifying and validating GHG emission reductions from agricultural activities and for comparing the effectiveness of various mitigation options, as well as the associated environmental, economic and social benefits and impacts for the overall production cycle.The economic potential for mitigation in agriculture depends on the price of carbon and on policy, institutional,and transaction cos t constraints. To date little progress hasbeen made in the implementation of mitigation measures at the global level. The potential for GHG mitigationwould be enhanced by an appropriate internationalclimate policy framework providing policy and economicincentives. The emerging market for carbon emissions trading offersnew possibilities for agriculture to benefit from land usethat sequesters carbon or saves non Carbon(iv)oxide emissions.TheClean Development Mechanism (CDM) under the KyotoProtocol of the United Nations Framework Conventionon Climate Change (UNFCCC) is the most importantmechanism for payments to developing countries. Currently, the CDM limits eligible activities in agricultureto afforestation and reforestation, and reduction of non- Carbon(iv) oxide gases. Hence carbon sequestration activities, such asconservation tillage and restoration of degraded soils, arepresently considered ineligible.Financing options will need to include grant funding, but there is also a need to develop market mechanisms for sustainable development (MMSDs) that will allow farmers and rural communities to benefit from such initiatives and have an elaborate livelihood strategy. On-farm mitigation Improved management practices that reduce on-farm emissions include livestock and manure management, fertilizer management, and improved rice cultivation. Methods to reduce methane emissions from enteric fermentation include enhancing the efficiency of digestion with improved feeding practices and dietary additives.The efficacy of these methods depends on the quality of feed, livestock breed and age, and also whether the livestock is grazing or stall-fed. Developing countries are assumed to provide lower quality feed to livestock, which raises the emissions rate per animal to over that for developed country herds(Smith et al. , 2007). In manure management, cooling and using solid covers for storage tanks and lagoons, separating solids from slurry,and capturing the methane emitted are relevant techniques.Concerning developing countries, applying thissort of manure management may be difficult as animalexcretion happens in the field. Composting manure andaltering feeding practices may help reduce emissions to acertain extent. Improving the efficiency of fertilizer application or switching to organic production can decrease the amount of nutrientload and Nitrous(ii)Oxide emissions. However, overall benefitswould need to be weighed against the potential impact onyield(Smith et al. , 2007). Sustainable Agriculture and Sustainable DevelopmentIn addition to reducing GHG emissions, agricultural mitigation measures have other social, economic and environmental benefits, particularly in regard to sustainable development, food security and making progress towards meeting the objectives of the Millennium Development Goals. The list of co-benefits linked to soil carbon sequestration include reduced soil erosion, improved soil fertility and structure, improved water qualit y, reduced levels of phosphorous and nitrogen pollution, buffering against drought and improved agricultural performance.Another mitigation strategy is considered to be the displacement of fossil fuels through the production of cleaner-burning bioenergy, such as ethanol, biogas, and methane, which can all be derived from agricultural production. Securing food for a growing population is a major global concern for developing countries and is a primary objective of agricultural policies. As such, mitigating climate change must not result in reduced food production (FAO, 2008). There are limits to GHG emissions reductions in the agricultural sector because of its importance in providing food for a growing global population.Improvements in efficiency may be a more reasonable approach than absolute reductions in developing countries GHG emissions from agriculture. Linking Mitigation and Adaptation Efforts Formally defined, adaptation to climate change is an adjustmentmade to a human, eco logical or physical systemin response to a perceived vulnerability (Smith et al. , 2007). Agriculture is a sector that can be used to link mitigation and adaptation policies and actions. Many mutually reinforcing synergies exist between specific mitigation and adaptation solutions that can lead to more efficient allocation of â€Å"climate response† resources (FAO, 2008).Synergies may occur in cases where mitigation-driven actions in agriculture have positive adaptation consequences for example, carbon sequestration projects with positive drought preparedness aspects or when adaptation-driven actions have positive consequences for mitigation for example, residue return to fields to improve water holding capacity will also sequester carbon (Smith et al. , 2007). A large proportion of the mitigation potential of agriculture arises from soil carbon sequestration, which has strong synergies with sustainable agriculture.Linking adaptation and mitigation measures have both positive andnegative aspects, depending on national circumstances and agricultural systems. In addition, many farmers may be ill-equipped to adapt or may notunderstand the risks that climate change imposes. As a result,information sharing, such as that involving climateforecasting, will likely play an integral part in managingclimate change risk. A future climate regime should encourage countries to recognize and enhance positive impacts. Such measures include the following; * Changes in tillage practices or adjusted livestock breeds are short-term measures. Longer-term measures, such as improved water management or the building of irrigation systems, can help in adapting to a changing climate. * Supporting policies that promote adaptation measures can help towards more effective implementation. * Modes of external assistance range from allocating information, advice, and training on adaptation measures, to developing institutional capacities and policies. * Adaptation is not a stand-alone activity, and its integration into development projects, plans, policies, and strategies will be crucial. * Synergies between mitigation and adaptation should be maximized.Adaptation options and their supporting policies should be adopted by the appropriate level of government and implemented by institutions in direct contact with beneficiaries. For example, adaptation responses such as changing planting dates and tillage practices may require technicalservices provided by local extension agents, which are coordinatedby regional universities and research institutions. Agricultural research, including crop breeding to developdrought and heat tolerant crop varieties, will require bothpublic and private investment. Structural adaptation measures,such as creating water arkets and price incentives,will need to be implemented on a national level, most likelyin partnership with economic cooperation unions. National governments, NGOs and the international community all have a role to play i n creatingthe means and cooperation required for adaptation. Conclusion In general, agriculture impacts climate change significantly through livestock productionand the conversion of forest to land cover that haslow carbon sink or sequestration potential. Nitrous oxideemissions from crop production and methane from riceproduction are also significant.Mitigation options thatare the most technically and economically feasible includebetter rice, crop- and pastureland management. Although there are viable mitigation technologies in the agricultural sector, particularly in developing countries,some key constraints need to be overcome. First, rules of access which still do not credit developing countries forreducing emissions by avoiding deforestation or improving soil carbon sequestration must be changed. Second,operational rules, with their high transaction costs for developingcountries and small farmers and foresters in particular,must be streamlined.Climate change is also likely to ha ve a significant negative impact on agricultural production, prompting outputreductions that will greatly affect parts of the developing world. Adaptation, including crop choice and timing, hasthe ability to partially compensate for production declinesin all regions. In addition, to date, only a limited number of studies have focused on theclimate change and carbon fertilization effects related tocrops of importance to the rural poor, such as root crops and millet. As a result of changes in production, food security will beaffected by climate change.Even the most aggressive mitigation efforts that can reasonably be anticipated cannot be expected to make asignificant difference in the short-term. This means thatadaptation is an imperative. Yet, in the face of this imperative,many developing countries are lacking in sufficientadaptive capacity(FAO, 2008). As a result, there is a large role for nationalgovernments, NGOs, and international institutionsto play in building the necessary a daptive capacity and riskmanagement structures. Finally, climate change adaptation and mitigation have to proceed simultaneously.Since adaptation becomes costlierand less effective as the magnitude of climate changesincreases, mitigation of climate change remains essential. The greater the level of mitigation that can be achieved at affordable costs, the smaller the burden placed on adaptation. Policies focused on mitigating GHG emissions, if carefully designed, can help generate a new developmentstrategy; one that encourages the creation of new value inpro-poor investments by increasing the profitability of environmentallysustainable practices.To achieve this goal,it will be necessary to streamline the measurement andenforcement of offsets, financial flows, and carbon creditsfor investors. It will also be important to enhance globalfinancial facilities and to reform their governance, namelyto simplify rules and to increase the funding flows for mitigationin developing countries. we know what to do,and it is therefore the right time to act before it is too late. It is so unfortunate to see people dying from famine in the 21st century.Climate change may worsen this situation, therefore we should cooperate toghether to ensure thatthe global issue of climate change is handled in a manner that it deserves. Agriculture is just one of those options especially by the developing countries. REFERENCES 1) Clean Development Mechanism (CDM) (2008) [Available online at http://cdm. unfccc. int/index. html] DATE accessed 20th November 2012. 2) IPCC (2007) Summary for policy makers. Climate Change 2007: Synthesis Report. Fourth Assessment Report of the Intergovernmental Panel for Climate Change. [Available online at http://www. pcc. ch/pdf/assessment-report/ar4/syr/ar4_syr_spm. pdf ]. Date accessed 19th November 2012. 3) FAO, 2008. â€Å"Climate Change Adaptation and Mitigation: Challenges and Opportunities for Food Security. † Paper presented at the High Level Confere nce on World Food Security 4) Food and Agriculture Organization (FAO). (2008). Financial mechanism for adaptation to and mitigation of climate change in the food and agriculture sectors. Paper presented at the High Level Conference on World Food Security 5) Smith, P. , Martino, D. , Cai, Z. , Gwary, D. , Janzen, H. , Kumar, P. , McCarl, B. Ogle, S. , O’Mara, F. , Rice, C. , Scholes, B. , & Sirotenko, O. (2007). Agriculture. In B. Metz, O. R. Davidson, P. R. Bosch, R. Dave & L. A. Meyer (Eds. ), Climate Change 2007: Mitigation. Contribution of Working Group III to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge, UK: Cambridge University Press. 6) Smith, P. , D. Martino, Z. Cai, D. Gwary, H. Janzen, P. Kumar, B. McCarl, S. Ogle, F. O’Mara, C. Rice, B. Scholes, O. Sirotenko, M. Howden, T. McAllister, G. Pan, V. Romanenkov, U. Schneider, S. Towprayoon, M. Wattenbach and J.Smith, 2008. â€Å"Greenhouse gas mitigation in agriculture. † pp. 789-813. 7) United Nations Framework Convention on Climate Change (UNFCCC). (2009). Copenhagen Accord. Conference of the Parties. Accessed at http://unfccc. int/resource/docs/2009/cop15/eng/l07. pdf. 8) UNFCCC, 2008. Challenges and Opportunities for Mitigation in the Agricultural Sector. Technical Paper. FCCC/TP/2008/8. http://www. unfccc. int/resource/docs/2008/tp/08. pdf. Date accessed 20th November 2012. 9) World Bank. (2008). World Development Report 2008: Agriculture for Development. Washington, D. C. : World Bank.

Wednesday, October 23, 2019

Tire City Case

Tire City, Inc. Analysis As a lender, I would have no problem giving a loan to Tire City, Inc to help finance their growth for the following reasons. The first thing that is apparent is the annual revenue growth. It is expected to steadily increase by 5% in the coming years. This means that Tire City has strong operating cash flows to fund its day-to-day operations. Additionally, Tire City, Inc has improved in total asset turnover over the years, suggesting that they are indeed growing their revenue in proportion to sales. Also, their net margin, gross margin, and return on equity have stayed constant over the years.It is good that there has been no significant decrease in these ratios. Furthermore, their noteworthy sales growth from ’93-’97 suggests they are finding ways to bring in more money such as increasing their prices. Another thing to be considered is the inventory turnover and payables period. It could be a concern that the inventory turnover period is at almo st 60 days; however, the payables period has been decreasing over the past few years, which means that Tire City is able to pay off some of their debt to creditors more frequently.Also, the company’s current ratio has been improving with only a slight drop in 1996. This proves the company has liquidity and is having no problem generating cash. Plus, it is apparent that the company has more assets than equity as the years move forward, meaning that they are trying to lower their financial leverage and their level of risk as they continue to grow. All things considered, I would be comfortable loaning funds to Tire City, Inc to finance their growth for it seems they have the resources necessary to pay back this loan in the future.

Tuesday, October 22, 2019

Borax Crystal Star - How to Grow a Star Crystal

Borax Crystal Star - How to Grow a Star Crystal Grow borax crystals around a star shape to produce a crystal star that also makes a beautiful holiday ornament or decoration. Materials: Borax Crystal Star BoraxWaterPipe cleaner (chenille craft stick)Food coloring (optional) Process Shape a pipe cleaner into a star. Its a good idea to leave one end long so you can hang the star in the crystal growing solution.Prepare a saturated borax solution by dissolving as much borax as possible into boiling hot water. Youll know you have a saturated solution when borax powder starts to accumulate on the bottom of the container.Stir in food coloring, if desired.Hang the star in a clean container (such as a coffee mug or glass) and pour the borax crystal growing solution into the container so that the star is covered. Try to avoid touching the star to the sides or bottom of the container. Crystals will grow on the star even if it is touching the container, but it is much harder to remove the star without damaging it.Allow the crystals to grow until you are satisfied with them. This is usually anywhere from 2-10 hours. Remove the star and allow it to dry.The star may be stored wrapped in tissue paper, kept away from humidity. Other Star Crystals If you dont have borax you can use alum, table salt, or epsom salts. As with the borax, be sure the solution is fully saturated before adding the star shape. Table salt will produce pretty small cubic crystals, while alum will grow large crystals, and epsom salts will grow needle-shaped crystals.

Monday, October 21, 2019

11 Six Figure Jobs Beyond Doctor or Lawyer

11 Six Figure Jobs Beyond Doctor or Lawyer You don’t have to become a doctor or a lawyer to make $100k a year or more. Take a look at these 11 six figure jobs you may not have thought of as quite so high-paying. Keep in mind that compensation can come in many more forms than just your annual salary. And remember to keep your options open! 1. Special AgentLet alone the fact that the job title is super cool, you can make over $120k per year as an FBI agent. Or an agent for similar companies or law enforcement. To get hired, you’ll probably want a bachelor’s degree in criminal justice, plus some military or law enforcement experience. These jobs can be action packed or desk-oriented, but most will likely require some extra non-standard or on-call work hours.2. Airline PilotAgain, you’ll want either military flight experience or a degree in aviation, physics, or some other related field. In addition to your flying skill, good quick-thinking and savvy leadership is required. Nonstandard schedule again, but also routinely $120k and above.3. Regional Sales ExecutiveA college degree may or may not be necessary here. You’ll have to work your way up and through the company a bit, getting to know the product backwards and forwards, but if you have what it takes and you have excellent communication skills, you could easily hit the executive level, and your total compensation could easily breach $100k per year.4. Nurse PractitionerNPs are required to have a Master’s degree in nursing, plus whatever state level qualifications and certifications apply. But they can also build their own private practices, have some control over their schedules, and make $100k or more per year.5. Reservoir EngineerIdentify and go after gas reserves underground. All you’ll need is a degree in chemical engineering, and the determination to get the necessary experience in a very technical and nuanced field. But the compensation is usually over $125k, sometimes as high as $143k.6. DentistOkay so this is kind of like being a doctor or lawyer, and you’ll need all the schooling that entails. Four year degree, doctorate in dentistry, qualifying and licensing exams†¦but most dentists run their own practices and make between $125k and $130k per year.7. Equity Research AssociateIf you’re good with numbers and can acquire a bachelor’s degree in finance or economics, this might be the right field for you. You’ll analyze financial trends and do all the fun stuff of investment banking without the ulcers. Typical total median pay, with commissions and other compensation: $100k per year.8. GeophysicistIf you love rocks, and the Earth in general, then get yourself a degree in Geology, then another one. There is a surprising range of positions out there for geophysicists. And you could make nearly $120k per year.9. Physician AssistantPAs are like NPs. They also require a master’s degree, but you go through different programs. The only difference is PAs have to work more closely with MDs and so have less flexibility and autonomy, but they still break $100k per year.10. Drilling EngineerDrill baby, drill. If you have a bachelor’s degree in mechanical engineering, or another relevant field, and you are confident and comfortable managing a team where safety is of the utmost importance, than this field could be for you. Expect to make around or over $110k.11. Software ArchitectIf you’re more the indoor type, and love technology, then get yourself a degree in math, computer science, software engineering†¦ or just show your coding mettle in other ways. You might need to put in some long hours, and you’ll have to have Batman-esque skills in order to provide company’s with the tools they need to operate at their best, but you can make over $130k per year.

Sunday, October 20, 2019

Business overview of Deloitte Consulting

Business overview of Deloitte Consulting Deloitte Consulting is one of the world’s largest consulting firms, with 12,000 consultants serving more than one-third of the Fortune Global 500 in more than 30 countries. It’s a powerful firm that incorporates all types of services in its business from research through implementation. More importantly through the eyes of it’s employees it is seen as a humane, balanced, and enjoyable place to work, where talent can rise quickly. The firm which started out as Deloitte Touche Tohmatsu (DTT) was initially an international accounting firm, founded in 1845 by former bankruptcy clerk William Welch Deloitte. As the firm began to grow there was increased pressure on the business to separate from their parent accounting firms, and a new strategy had to be put in motion. In March of 2003, the firm announced it had ended discussions to separate its consulting practice from the parent accounting firm, reasons included a tight credit market and poor economic conditions. Del oitte Consulting, is now fully merged back into its parent company, which is now known simply as Deloitte. The company today competes with other large and mid-size consulting firms for the business of companies that do more than $500 million in sales. It’s known primarily for its one stop shop designs that deliver â€Å"executable strategies† that it will help implement for clients of all sizes. Some of these clients include Boeing, GM, Chevron Texaco, and retailer The Gap amongst other. One of the ways Deloitte stands out form its competitors is by providing clients with a more personalized contract which takes into mind their short and long term goals as well as other factors. By have well trained consultants and project staff the firm is able to initiate strong conversation and detailed research. They are able to collaborate better and are more responsive to their needs. Deloitte has services in five service areas. The firm integrates process capabilities and servic e lines into each service area. Deloitte consultants work with eight industry groups in three geographic regions. When new people are hired into one of the regional offices they generally work in a particular geographic region. When starting your career with Deloitte, as you become more familiar with the processes ways of doing things you’ll gradually specialize in a service line and industry group. However as with any small or large organization you will initially work within different areas and on different project types. The four key business areas the company operates in include : Audit Financial advisory, Tax Consulting Market Position Deloitte Consulting is seen as one of the leaders in the industry competing with other large and midsize consulting firms. Since it’s had a reputation of quality service and commitment to it’s clients they have been able to provide a wide range of general management and information technology consulting services all around th e world. One of the main strengths the firm has is in operations consulting, as well as strategic planning, financial management, and productivity. Deloitte Consulting is in the top 3 consulting firms in the world with other firms such as, IBM and Accenture. based on Consultants News’ estimates, which include revenue from both Deloitte Consulting and DTT. On the other hand, some research firms have listed Deloitte Consulting’s revenue the highest amongst its competitors; this would rank Deloitte Consulting (independent of DTT) at number six on the following list. In 2009 Deloitte as the worldwide leader in the consulting marketplace based on aggregate revenue, growth and market share for 2009.

Friday, October 18, 2019

Death Penalty Research Paper Example | Topics and Well Written Essays - 1750 words

Death Penalty - Research Paper Example However, in mid 18th Century, social critics in Europe began to highlight the value of the human being and to condemn Government practices they deemed unjust, including Capital Punishment. Capital Punishment has been used as castigation for many crimes since ancient times. The Bible recommends death for many heinous crimes such as witchcraft, kidnapping and murder. But in 1500, only some major criminal acts were sentenced to death in England. These offenses included larceny, rape, burglary, murder, arson, and treason. In 1723, the Waltham Black Acts was passed in the Parliament in which many new crimes were ratified and this augmented the number of people given the death penalty every year. Following the 100 years from then, which is 1740 to 1839 a total number of Eight thousand Seven hundred and Fifty three people were put to death in Wales and England. The highest number of people that were put to death was Three hundred and seven in 1785 because they weren’t able to run away because of the ongoing American War of Independence. Due to this high number of death hangings, in 1800 the population reduced to only 9 million. In 1750s the reforms for death penalty begin to integrate in Europe and were under the governance of Cesare Beccaria (an Italian jurist), Voltaire (a French Philospher) and law reformers from England such as Samuel Romilly and Jeremy Bentham. These opponents of Capital punishment stood by the argument that death penalty was atrocious, terrible, appalling and usually given wrongly. They started their campaign with Quaker leaders and other law reformers and believed that life imprisonment was a more sensible option. By 1850s, these reform movements began to take physical existence. In 1853 Venezuela was the very first nation to condemn death sentence and then in 1867, Portugal followed the lead. In 1847, Michigan was the first state of United States to abolish death penalty for murder. In today’s society, Capital Punishment is abolished in most of the Latin America and Western Europe. However, United States, along with Japan, china and many Middle Eastern and Asian countries giv e death penalty for certain offenses and oblige it at various frequencies. Challengers of Capital Punishment compete that it is dreadful and horrifying. Those who oppose the death penalty see it as a human rights issue involving the true limits of governmental power. These people argue that life is a gift bestowed to us by God and no one has the right to take away other person’s life for acts such as robbery or burglary. But should death penalty be given for murder and shocking crimes still remains a question. Further Capital Punishment can be a wrong decision for most individuals because there is always a probability of error. It might happen that a person who is given death penalty is innocent and some other person was responsible for that dreadful deed. The actual administration of our society can be corrupted as well. Capital Punishment is imposed mostly on the indignant and the minorities. There is also a possibility of weakness of argument from the side of preclusion; t he argument that the threat of Capital Punishment lessens violent crime is open to doubts and is difficult to prove as well; and is also morally suspected. Another dispute over Capital Punishment is that we are too unskilled to carry it out. Sometimes a person keeps waiting for months or even years to be finally put to death. The delays, appeals, technicalities and retrials that keep a person destined to death waiting for implementation of the law enacted keep him or her bored and tired of life. According to World News, dated

Banking Concept Of Education Essay Example | Topics and Well Written Essays - 1250 words

Banking Concept Of Education - Essay Example Saudi Arabia, many of the students and educators have not realized that system of education is not just ineffective, but to a larger extent harmful. Going to our classes, we all had one goal in mind getting as much information for the test and getting out. Now that I am studying in America I realized how it is. The whole situation seems like feeding us information on a silver spoon. We were expected to stay quiet for the whole 60 minutes. Not knowing that it was wrong, we did what we were told to do. In the essay, The Banking Concept of Education, Paulo Freire argues that modern education is widely recognized as a chance for teachers to feed students with information as the students submissively accept it. In my years as a submissive recipient of information both in the Saudi Arabia and USA, I have come across numerous educators who fit Freire’s cynical description (Freire Paulo, 13). However, not teachers are the same, in that I have also realized a professor whose style of teaching is different from those Freire scorns, and she created a beautiful environment and splendid environment during the learning process. Her meth ods proved that it is very possible to develop a learning environment where students do not suffer from â€Å"narration sickness†.... The class that changed my opinion of education was the chemistry class. The professor, who was as highly educated as the rest of the faculty educators, initially stacked to the idea that she could learn as much from us the students as we from her. Freire demonstrates a number of qualities of the Banking Concept of Education, and argues these qualities are available in each and every classroom, and are reflected by â€Å"oppressive society in general† (Freire Paulo, 75). One of the first qualities demonstrated by Freire is that: the educator educates and the learner is taught. In our chemistry class, the professor had very little to do with the learning process. Every student submitted a new chemistry models every week, and our peers in the class provided with a feedback on our work. The professor was just there to show guidelines and to expound on complex chemistry concepts that we could not understand as a class, and to ask leading questions to prompt discussion. By reading o ur work and having the students explain to her, the professor also learned many things (Freire Paulo, 43). This logic is firmly related to Freire’s second listed quality which states that: the educator knows everything and the learner knows nothing. However, since most of the feedback came from other students, it was usually the opinion of students that was valued highly in the class. According to Freire, knowledge arises only through invention and reinvention, through impatient, restless, continuing, inquiries pursued by human being in the world, with the world and with each other. That is, true comprehension can only be fashioned though questioning, conversation, and

Social Rights Are Human Rights Essay Example | Topics and Well Written Essays - 1750 words

Social Rights Are Human Rights - Essay Example Human rights are defined as the rights that a human has as a result of being a human. This follows that every human being has an inherent authority over human rights. Human rights cannot be divided whether they are civil or political; for example the right to live, no discrimination before the law and freedom of speech and expression. Similarly, economic, social and cultural rights cannot be divided either. However these rights are interrelated and dependent on each other. This follows that progress in one right has an influence on the other and withdrawal of one impact the other (United Nations Human Rights, 2011). Whelan and Donnelly (2007) argue that Western countries have advocated economic and social rights strongly and consistently over the period of time, leading to the post-World War era as we know now. However most analysts are of the perspective that political and civil rights have been given preponderance over social rights. McNally (2006) observes that the global corporat e agenda is a representation of the trend towards commodification that has led to the promotion of capitalism since its advent, highlighting the greater importance being given to political rights. Human rights encompass a range of freedoms and rights, of which economic, social and cultural rights form a part of. The human rights definition that follows does imply the notion of protecting social rights and laws and regulations are meant to safeguard the basic and vital â€Å"needs of the human person and his/her dignity in times of peace and war† (Kalin, Muller & Wyttenbach, 2004). However human rights do not grant equal importance to the rights that they compromise of. It is argued that social rights are not given the same status by human rights as it gives to civil and political rights. According to Vierdag (1978), civil and political rights have always been considered as absolute and immediate compared to economic, social and cultural rights, which are considered programmat ic and to be recognized over the period of time. This will form the core of the argument in this paper and will focus on the status of social, civil and political rights in the context of human rights. When taking human rights as a collective concept, it can be appreciated that human rights have developed and evolved throughout the course of history. This has led to the division of human rights into three generations. Kalin, Muller and Wyttenbach (2004) observe that the pattern and process of the evolution of human rights is manifested in their structure. The Human rights that are represented and divested in the Universal Declaration of Human Rights can be classified into several generations; this classification is based on the historical origin of each generation. Commonly human rights are divided into three main generations. The first generation consists of civil and political rights and the second generation refers to economic, social and cultural rights. The third generation com promises of collective rights or solidarity rights. The division of human rights into further generations creates a difference in the level of importance attached to each. This paper will delve into the details of the first two generations. Civil and political

Thursday, October 17, 2019

Patricia Benners Nursing Theory Essay Example | Topics and Well Written Essays - 2250 words

Patricia Benners Nursing Theory - Essay Example This is an excellent perception in the field of nursing and draws on concepts from Nightingale as well which make it even more powerful. The main points of this research with regard to this theory will emphasize that patients deserve the best quality of care that can be given and nurses can only do this by drawing upon the knowledge and experiences that they have gained through clinical areas and on into areas of more pronounced nursing care from their past as well. All of these experiences help the nurse become better attuned to her nursing duties and more prepared to know what to do in times of great stress also. As the conclusion will point out, sharing this knowledge with other nurses and medical professionals is what strengthens the nursing care that patients are meant to receive. It helps the knowledge and acquired skills to grow, moving certain forms of nursing over from novice care givers to care givers who are full of excellence and continue to grow in order to provide even more improved supportive services to those who need it the most. Patricia Benner states "Knowledge development in a practice discipline consists of extending practical knowledge (know-how) through theory based scientific investigations and through the charting of the existent know how developed through clinical experience i... Benner's theory expects nursing to gradually improve the care we provide through academics and experience. She also believes that nursing only benefits if that knowledge learned is shared. Processes can only be improved with the knowledge of what is wrong. Clinicians and leaders should develop programs in their facility to allow for discussion of patient observation, mistakes and mishap to enhance the clinical judgment of the entire nursing staff. Following a strategic theorization such as Benner's emphasizes the power to minimize medical mistakes and errors resulting from misguided care, especially due to the fact that much of the knowledge is shared among the medical practicing team (American Nurses Association 2000). Such accidents are errors that could be avoided, which are considered to be sentinel events that stem from an unexpected occurrence involving death or serious physical or psychological injury, or the risk thereof due to lack of knowledge, experience, or even shared knowledge among the nursing staff (Ballard 2002). Benner's theory defines that the top recommendation for nursing leaders is to come to the forefront and recognize errors and near misses as learning tools to prevent future errors. The basic premise is that nurses do not go to work to harm patients, but the processes that are in place put everyone at a greater risk. This shows that this theory focuses heavily on patient safety and the concerns of the patient; as well it should since there are so many errors that take place in the medical environment in current day (Institute of Medicine 2000). For instance, in terms of lives lost, patient safety is as important an issue as worker safety. Every year, over 6,000 Americans di e from

Types of teachers Essay Example | Topics and Well Written Essays - 250 words

Types of teachers - Essay Example They are keen disciplinarians, and will often keep the students on their toes at all times ensuring that they follow instructions to the letter. Furthermore, they hardly ever negotiate with students and often give orders in which they expect to be obeyed unreservedly. Easygoing teachers are the opposite of the strict teachers; they are open to negotiation and will listen and discuss issues with learners before they give make a conclusion. Moreover, easygoing are patient with students; for instance, if a student is late in submitting a paper, they will allow them extra time to work on it and not penalize them. They rarely punish students and only do it as a last resort, are quite lenient in issues pertaining to both discipline and academics and are likely to overlook minor errors to motivate the student. The final group is the moderate teacher; such teachers combine both the characteristics of the authoritarian and easygoing teacher. They negotiate with students but will not hesitant to punish them if they find if fitting, they may allow students extra time to do assignments but will put conditions and will warn the stuns making them aware that they were irresponsible for not doing the work in time. Ultimately, every teacher uses the method he/she believe is best to educate their learners although the method chosen often has a lot to do with the teacher’s personal characteristics. However, the strict teacher model was more characteristic of teachers in the past, and today they are more likely to use a moderate method trying to get the best out of both

Wednesday, October 16, 2019

Social Rights Are Human Rights Essay Example | Topics and Well Written Essays - 1750 words

Social Rights Are Human Rights - Essay Example Human rights are defined as the rights that a human has as a result of being a human. This follows that every human being has an inherent authority over human rights. Human rights cannot be divided whether they are civil or political; for example the right to live, no discrimination before the law and freedom of speech and expression. Similarly, economic, social and cultural rights cannot be divided either. However these rights are interrelated and dependent on each other. This follows that progress in one right has an influence on the other and withdrawal of one impact the other (United Nations Human Rights, 2011). Whelan and Donnelly (2007) argue that Western countries have advocated economic and social rights strongly and consistently over the period of time, leading to the post-World War era as we know now. However most analysts are of the perspective that political and civil rights have been given preponderance over social rights. McNally (2006) observes that the global corporat e agenda is a representation of the trend towards commodification that has led to the promotion of capitalism since its advent, highlighting the greater importance being given to political rights. Human rights encompass a range of freedoms and rights, of which economic, social and cultural rights form a part of. The human rights definition that follows does imply the notion of protecting social rights and laws and regulations are meant to safeguard the basic and vital â€Å"needs of the human person and his/her dignity in times of peace and war† (Kalin, Muller & Wyttenbach, 2004). However human rights do not grant equal importance to the rights that they compromise of. It is argued that social rights are not given the same status by human rights as it gives to civil and political rights. According to Vierdag (1978), civil and political rights have always been considered as absolute and immediate compared to economic, social and cultural rights, which are considered programmat ic and to be recognized over the period of time. This will form the core of the argument in this paper and will focus on the status of social, civil and political rights in the context of human rights. When taking human rights as a collective concept, it can be appreciated that human rights have developed and evolved throughout the course of history. This has led to the division of human rights into three generations. Kalin, Muller and Wyttenbach (2004) observe that the pattern and process of the evolution of human rights is manifested in their structure. The Human rights that are represented and divested in the Universal Declaration of Human Rights can be classified into several generations; this classification is based on the historical origin of each generation. Commonly human rights are divided into three main generations. The first generation consists of civil and political rights and the second generation refers to economic, social and cultural rights. The third generation com promises of collective rights or solidarity rights. The division of human rights into further generations creates a difference in the level of importance attached to each. This paper will delve into the details of the first two generations. Civil and political

Types of teachers Essay Example | Topics and Well Written Essays - 250 words

Types of teachers - Essay Example They are keen disciplinarians, and will often keep the students on their toes at all times ensuring that they follow instructions to the letter. Furthermore, they hardly ever negotiate with students and often give orders in which they expect to be obeyed unreservedly. Easygoing teachers are the opposite of the strict teachers; they are open to negotiation and will listen and discuss issues with learners before they give make a conclusion. Moreover, easygoing are patient with students; for instance, if a student is late in submitting a paper, they will allow them extra time to work on it and not penalize them. They rarely punish students and only do it as a last resort, are quite lenient in issues pertaining to both discipline and academics and are likely to overlook minor errors to motivate the student. The final group is the moderate teacher; such teachers combine both the characteristics of the authoritarian and easygoing teacher. They negotiate with students but will not hesitant to punish them if they find if fitting, they may allow students extra time to do assignments but will put conditions and will warn the stuns making them aware that they were irresponsible for not doing the work in time. Ultimately, every teacher uses the method he/she believe is best to educate their learners although the method chosen often has a lot to do with the teacher’s personal characteristics. However, the strict teacher model was more characteristic of teachers in the past, and today they are more likely to use a moderate method trying to get the best out of both

Tuesday, October 15, 2019

Explore Blakes Chimney Sweeper poems from the Songs of Innocence and the Songs of Experience Essay Example for Free

Explore Blakes Chimney Sweeper poems from the Songs of Innocence and the Songs of Experience Essay In this essay I am going to explore Blakes Chimney Sweeper poems from the Songs of Innocence and the Songs of Experience. During this essay I will cover Blakes life and times and the way chimney sweepers get treated around that time and what Blake attempts to do about it. Blake was born on November 28 in the year 1757. His parents where strict but understanding. Blakes parents realised early in his life that Blake was gifted. He had an extremely active imagination and he often got visions. At only four years old he claimed he had seen God in one of these visions. Another time when he was with one of his friends he envisaged angels filling a tree. He horridly told his family what he saw but the response he got from his father was quite negative. His father threatened to whip him because he believed it was time for him to grow up. However his mother took Blakes side and when she asked him about it he stated that the angels took the form of his thoughts. This vision was stuck with him and was extremely influential in his life. Blake obviously had a gift for seeing things with his eyes and in his imagination. He used his artwork to express his experiences. When Blake turned ten years of age his parents decided to enrol him into a drawing school. Later on in his life Blake used his talent as an artist to become a apprentice engraver. Throughout Blakes life he had a dislike for nasty, unfair people especially towards those that had power and money like those in the government, and those that where associated with the church. Blake also could not stand power abusers and bad unfair treatment towards the poor, young and elderly. In the time of William Blake chimney sweepers went through a torrid time, it was as if they where young slaves. The age of the infants varied between five years old to the age of eight or nine if they could be fit up the chimneys. They where often bought off parents for as little a à ¯Ã‚ ¿Ã‚ ½2, in some cases however they may be purchased for à ¯Ã‚ ¿Ã‚ ½5 but it is still a despicable price to pay for a young child. In the extreme cases the chimney sweepers where stole from familys. When the sweeps had lost the use around the age of seven they get passed over to the church. Blake despised the serious health problems the sweeps got from this demanding life of threatening work. Most sweeps after only a short time of working in the chimneys end up with twisted kneecaps, ankles and even spines from crawling up the extremely cramped chimneys. There was even such a thing as chimney sweeps cancer which they got from the soot irritating there skin. Again we can see why Blake hates the idea of chimney sweepers and there treatment, they are forced to do inhumane things that even animals would never be told to do. The master sweeps imbedded fear into the young brains and subjected them to clean chimneys. They where made to live in the most inhabitable of conditions. They often slept on soot bags in dirty wet cellars. The sweeps where forced to clean the chimneys if they refused or could not fit up the chimneys they where punished by the fire being lit, slaps, prodding with poles and various other instruments and pricking of the bottoms of their feet. All this just so the master sweep can make an easy living from the poor misfortune of innocent children. Blake strongly disagreed with the treatment of the sweeps so much he wrote two beautiful poems about their treatment, these featured in two separate books, Songs of Innocence and Songs of Experience. The first chimney sweeper poem is from the Songs of Innocence, Blake shows a strong message through his poems, and they sometimes come across light hearted like nursery rhymes. But often, if not all the time they have a dark sinister meaning. This is the beginning of Chimney sweeper 1 and straight away Blake invites the reader to feel sympathy for the situation the family is in. It shows how poor the family is, it gets so bad the father has to sell his child to get some money to keep the rest of the family going. This reflects on the state of working class people of that time. When my mother died I was very young, And my father sold me while yet my tongue. The boy is sold so young that it has not even developed the ability to speak properly; in the poem he Could scarcely cry weep! weep! weep! weep! The boy could be crying in this passage or he could be trying to say the word sweep but is unable because of his age. This is clever by Blake because the passage has a double meaning; this carries on throughout the poem. The effect of the first stanza is to bring the reader into perspective of what lengths of desperation the families go to, to earn a small amount of money. In the second stanza the audience is introduced to Tom Dacre, his hair is shaved off and Tom is very upset about this. Blake feels very strongly about the dehumanisation of people and shows this in his poems. Blake compares Tom to a lamb because a lamb is innocent like the chimney sweeps and is also a form of sacrificial animal so it is showing there inability to have there own personality and independence. Theres little Tom Dacre, who cried when his head, That curld like a lambs back, was shavd The final part of this stanza represents the pureness of Tom Dacre. The soot represents the master sweeps trying to make him impure but the white hair represents how innocent Tom is. The effect of this stanza is to bring across the innocents of the sweeps to the audience. Hush, Tom! Never mind it, for when your heads bare, You know the soot cannot spoil your white hair. The third stanza is when Tom has a dream; in his dream he has visions of thousands of dead sweeps. The coffins of black represent a enclosed environment with dead sweeps covered in black soot. Blake involves the fact that thousands of chimney sweepers died to once again show the audience what really goes on. That thousands of sweepers, Dick, Joe, Ned, Jack, Were all of them lockd up in coffins of black. In Stanza four Tom Dacre is still in his dream and an Angel comes to set him free, this represents the chimney sweeps being liberated from their life of peril. And by came an Angel who had a bright key, And he opend the coffins set them all free Then Blake goes on in the conclusion of this stanza to contrast there life when they are trapped being made to go up chimneys, to being let to run free and be there own boss. It is everything they can not do when working as a chimney sweeper. Blake mentions that they wash in the river, this symbolises that they have left that dark past behind them and are moving on. This stanza has a light hearted mood and shows everything that the chimney sweepers can not have. In the fifth stanza Blake brings his feelings about the church through. The unfairness and manipulative abilities the church is shown in this stanza. And the Angel told Tom, if hed be a good boy, Hed have God for his father, never want joy. This means basically that if you do not sin you get to go to heaven. The angel represents the heartless church who manipulate through fear. This is what Blake is strongly against. In the final stanza of the first poem the boys go back to work after Tom wakes and have to work in poor conditions. And so Tom awoke; and we rose in the dark, And got with our bags our brushes to work. In the end of the last stanza Blake makes it seems as if it has finished on a high note, however Blake doesnt believe in this naive belief. So if they do all their duty, they need not fear harm. That was the first of the two chimney sweeper poems, throughout this poem Blake says one thing but if you look deeper into it, it has a much deeper sinister meaning. The second chimney sweeper poem is from the Songs of Experience this poem has a different angle that the first poem. Stanza one, The Chimney Sweeper 2 begins like this; A little black thing among the snow, Crying weep! weep! in notes of woe! Where are thy father mother? Say They are both gone up to church to pray. Blake represents the chimney sweeper in the first part, calling it A little black thing among the snow, To Blake the black represents the sweep all dirty and tainted. And calling it a thing dehumanizes the sweep. Blake wrote, A little black thing among the snow because the chimney sweeper is tainting society which is the white snow. Blake uses the same words from The Chimney Sweeper 1, in this poem for the same effect, to show the young boy upset, confused. Crying weep! weep! At this point in the poem the audience can not tell who is speaking. I believe it is the poor people; they are represented as chimney sweepers. The chimney sweeper is lost in society, represented by the snow. The government which is represented by the chimney sweepers parents is ignorant to reality. Blake has used the situation in the poem to express his feelings about politics of that time. Because I was happy upon the heath. And smild among the winters snow, The boy in the second poem has had more experience chimney sweeping and has come to terms that there is nothing he can do about it. He puts on a brave face and gets on with it, when compared to Tom Dacre in Chimney Sweeper 1 he doesnt have the naivety that Tom had. Once again I think Blake had another meaning that poor people represented as the chimney sweep are happy and they smile in society. They clothd me in the clothes of death, And taught me to sing the notes of woe. The parents of the chimney sweeper in this poem clothed there son and sentenced him to death when they decided to sell him to a master sweep. They made the boy cry when he had to leave and now he is alone and knows it. I think that Blake had another deeper meaning. I think the chimney sweeper represented poor people, they got clothed in the clothes of death by the chimney sweepers parents represented as the government. In the final stanza Blake goes on the attack at the church and the government he does this by provoking anger towards them through the unfairness of it all. And because I am happy dance and sing, They think they have done me no injury, In these lines Blake is how the chimney sweeper feels after his ordeal, putting on the front everything is ok when it is not. Going deeper into what Blake is trying to bring across is representation that the chimney sweep is the poor people again. The final two lines Blake attacks the church and the government, the chimney sweep is wise and is experienced and realises that the church and government exploit the poor so that they can make their own heaven out of the money from the society. And we gone to praise God his Priest and King, Who make up a heaven of our misery

Monday, October 14, 2019

Acid Leaching for Metallic Impurities

Acid Leaching for Metallic Impurities Acid Leaching for Metallic Impurities Evaluation of Some Mineral Ores in Nigeria *R.L. Tyohemba1 S. K. Emgba2 Abstract There is every need to access the impurity ratio of mineral ores in order to furnish investors and industrialists with information required to weigh the gains of venturing into their exploration. Metallic ores including; Zinc ore (Sphalerite), Iron ore (Magnetite), Iron ore (Heamatite), Copper ore (chalcocite), Lead ore (Galena) and gypsum were obtained from the National Geological Survey Kaduna. The ore samples were grounded and digested with aqua regia solution to leach their metallic constituents using standard method. The main metallic components of the ores viz: Zn, Fe, Cu, Pb and Ca were determined by the flame atomic absorption spectrophotometer (Biotech FAAS Phoenix 986) alongside their associated impurities. Galena (Lead ore) recorded the highest metallic impurity content of about 28.64 % and was followed by Sphalerite with about 6.31 % metallic impurities. The other ores recorded Zn>Mg>Ni>Pb. The impurity content of heamatite and magnetite were of the same trend in the orde r Mn>Cu>Zn>Ni>Pb. However, heamatite recorded higher Fe content than magnetite. Galena contained 534.50 mg/Kg (71.36 %) lead content with its associated impurities present in the order Zn>Mn>Cu>Cd. Sphalerite contained 8362.22 mg/Kg (93.69 %) as zinc while its associated impurities were present in the order of Cu>Fe>Ca>Mn>Pb. In gypsum, its Calcium content was (97.15 %) with its associated metallic impurities in the order Mg>Fe>K>Cr>Pb. The studied ores had a very high level of their major metallic constituents with only Galena which had a high level of impurities. Thus these ores could be good feedstock to mine their principal components. 1.1 INTRODUCTION Nigeria is richly endowed with a variety of mineral resources, fossil fuelsand solid minerals ranging from precious metals, various stones to industrial minerals such as Lead(Pb), Feldspar(xAl(Al,Si)3O8), ron magnetite(Fe3O4), iron hematite(Fe2O3), gypsum(CaSO4.2H2O),copper(Cu), Kaolinite(Al2O5(OH)4Si), Zinc(Zn), Limestone(caco3) e. t. c. Most of these are yet to be exploited. Statistically, the level of exploitation of these minerals is very low in relation to the extent of deposits found in the country. The presence of impurities in ores is inevitable due the nature of their occurrence. Impurities in minerals may be caused by simple admixtures or by crystal chemical substitutions [1]. Impurities are often responsible for colour changes. Natural impurities are common in minerals, as is the propensity for one element to slip into the crystalline structure in place of some other element. Exchanges of these forms do not cause a modification in mineral name as long as the replacements m ake up only a small proportion of the entire structure. Oxides nodules of Ni, Co and Cu have been found to occur in lattices of iron and manganese [2]. Associated impurities of zinc(II) such as lead, iron, Copper, Silver etc., contained in are said to be found present in Nigerian sphalerite mineral[3]. The high manganese content of the sphaleritesleave them incongruous for processing by conventional smeltingtechniques, facilitating the inevitability to design and construct an onsiterefinery that is specifically suited for Gamsberg ores and concentrates [4]. Naturally occurringsphalerite commonly incorporates variable concentrations ofimpurities (e.g. Fe, Cd, Mn, Cu, Co, Ni, Ge, In) that substitute zincin lattice sites. For example, FeS concentrations can range up to25 mol. %, while MnSseldom reaches up to 14 mol.%. Consequently,the high extent of stoichiometric inconsistency observedhas a marked effect on the processing, as high levels of theseimpurities in some zinc concentrates, i.e. Gamsberg, renders themunsuitable for processing by tr aditional operations.Copper is associated with basemetals such as nickel and cobalt. Studies have also been carried out on representative samples of Kà ¼re (Turkey) where massive rich copper ore were leached in acidic ferric sulfate solutions in order to recover copper and its associated metals (Zn, Co, Ni) present in the ore[5].The minerals of lead and zinc are naturally associated with eachOther.In many parts of the world, significant deposits of these mixedsulphide–oxide lead and zinc ores are found with the main sulphideand/or oxidised ore bodies. Because of their complex mineralogy,these ores are very difficult to deal with from a mineral processingpoint of view and they are very often left untreated as a result of themetallurgical difficulties encountered in extracting lead and zincfrom them. Although the primary sources of the metals are leadand zinc concentrates from sulphide and oxidised ores, as suppliesof these deplete, the processing of mixed ores must be considered[6]. Also, the lead-zinc ore from a mine is featured by complicated copper-lead-zin c intergrowth and uneven dissemination size. Besides, the minerals containing copper activate by nature the mineral containing zinc, causing difficulty of separation of copper, lead and zinc minerals [7].There also published data on the presence of metallic impurities including; Fe, Se, Mg, Al, Si, Cu, Zn, Pb, Cr, La, Ce, Nd and Y which were removed from desulpurized gypsum [8]. Hayward and Quincy [9] developed a method for the treatment of iron ores containing impurities such as aluminium, silicon, chromium, nickel and cobalt from iron ores of the type which contain nickel in excess of 0.25% and chromium in excess of 0.5%, such as for example those ores found in Cuba known as Mayari ores. The impurities which are present in all iron ores such as sulphur, phosphorus, manganese and silicon appear in iron and steel made there from. Such impurities are generally undesirable in iron alloys, but it has not been possible to remove them completely, and only high grade iron ores are used at present in the production of iron. For this reason, various low grade iron ores have been wholly rejected, either because of their high contents of the impurities mentioned or because they contain varying amounts of base metals [10]. These bulks of impurities mentioned in the essay have obvious unattractive characteristics that will increase the cost of mineral processing. There exist speculations that mineral ores in Nigeria are characterized by high levels of impurities. It then becomes imperative to access these mineral ores and their impurity ratios to furnish investors and industrialists with information that will help to estimate cost of production as well as to find suitable methods applicable for their purification. 2.1 METHODOLOGY 2.1.1 Sample Collection and Preparation Mineral ores including; Zinc ore (Sphalerite ZnS), Iron ore (Magnetite – Fe3O4), Iron ore (Heamatite (Fe2O3)), Copper ore (chalcocite Cu2S)), and Lead (Galena-PbS) were obtained from the National Geological Survey Kaduna. The samples were stored in the laboratory for the study. The ore samples were grounded using a porcelain mortar and pistol sieved and digested to leach their metallic constituents using the procedure described below. 2.1.2 Acid leaching of ore samples for metallic content determination. This was carried out as described by the ISO (1998)procedure [11]. 1g of the grounded air dried ore sample was transferred into a 250 ml reaction vessel (Teflon digestion bomb). 10ml of the mixture of nitric acid and hydrochloric acid in a ration of 1:3 (aqua regia) was added unto the reaction vessel containing 1g of dried sample and heated using hot plate inside a fume hood until white fume was observed and allowed to cool. The reaction vessel was allowed to stand so that most of any insoluble residue settles out of suspension. The relatively sediment-free extract was decanted carefully onto a filter paper, collecting the filtrate in a 100 ml volumetric flask. All the initial filtrate was allowed to pass through the filter paper, and the insoluble residue was washed onto the filter paper with a minimum amount of nitric acid (0.5 mol/l). The filtrate so collected was collected alongside the initial filtrate and the volume of the flask was made up to mark with deionized water. The extract thus prepared was ready for the determination of the studied metals, by an atomic absorption spectrometer (Biotech FAAS Phoenix 986). 3.1 RESULTS AND DISCUSSION 3.1.1 Metallic Content of Copper Ore (Chalcocite). The result of metallic content of copper ore is presented in table 1. The concentration of copper in the ore was found to be 10341.73 (mgkg-1) representing about 97.7% of its metallic content covered by this work. Other metallic constituents which are considered to be impurities were also found present. Hence, Ca (99.65 (mgkg-1), Mg (63.89 mgkg-1), Ni (9.38 mgkg-1), Pb (1.99 mgkg-1) and Zn (73.26 mgkg-1) in the order Ca>Zn>Mg>Ni>Pb. These metallic ions exists in their +2 oxidation states as copper and could replace the Cu2+ in its lattice sites. In a similar work by [5], massive rich copper ore was leached in acidic ferric sulphate solutions and was able to recover copper and its associated metals (Zn, Co and Ni). Table 1 Metallic content of Copper ore (mg/Kg) 3.1. 2. Metallic content of the studied Iron ores (Heamatite and Magnetite) Presented in table 2 are the available metallic contents of the studied iron ores. The mount of iron in the heamatite ore was found to be 6488.19 mgkg-1, representing (97.3) % of the total metallic content evaluated in the study. The iron content of magnetite was 5571.81 mgkg-1, representing 96.99%. However, an interesting trend was observed in the variation in the amount of metallic impurities which were found present in these iron ores. Both heamatite and magnetite varied in their level of impurities in the order Mn>Cu>Zn>Ni>Pb. Oxides nodules of Ni, Co and Cu have been found elsewhere to occur in lattices of iron and manganese ores [2]. Hayward and Quincy [9] had already identified impurities such as Aluminium, Silicon, Chromium, Nickel and cobalt from iron ores of the type which contained nickel in excess of 0.25%. The values reported in this study for both iron ores are lower in nickel content than those recorded above (0.21 and 0.18) % nickel for heamatite and magnetite respect ively. As earlier stated in literature, iron alloys are generally undesirable but it has not been possible to remove them completely, and only high grade iron ores are used at present in the production of iron. For this reason, various low grade iron ores have been wholly rejected, either because of their high contents of the impurities mentioned or because they contain varying amounts of base metals [10]. From the results presented in this study, Nigerian iron ores are of high iron content with very minimal impurity content in the ratio of (1:35 and 1:32) iron to metallic impurities content of heamatite and magnetite. Table 2 Metallic content of iron ores (HeamatiteMagnetite) (mg/Kg) **H: Heamatite **M: Magnetite 3.1. 3 Metallic Content of Lead Ore (Galena) The recorded amount of Pb in the galena ore was 534.50 mgkg-1, representing (71.36) % Pb content of the studied metallic components. Also, other metallic components considered to be impurities including; Cadmium, Copper, Manganese and Zinc were found present in the ore as presented in table 4 in the order Zn>Mn>Cu>Cd. The metallic impurities of Zn and Mn were present in relatively large amounts. (i.e. 14.21 and 12.85) %. The minerals of Lead and zinc are naturally associated with each other. In many parts of the world, significant deposits of these mixed sulphide-oxide lead and zinc ores are found with the main sulphide and/or oxidized ore bodies. Because of their complex mineralogy, these are very difficult to deal with from mineral processing point of view and they are very often left untreated as a result of the metallurgical difficulties encountered in extracting lead and zinc from them [6]. Table 4. Metallic content of Lead ore (mg/Kg) 3.1.4 Metallic Content of Zinc ore(Sphalerite) The results are found in table 5. Zinc content was determined to be 8362.22 mgkg-1 (93.69) % of the ore’s metallic content studied. Other metallic components which are considered to be common impurities associated with zinc ores were also found present in the other Cu>Fe>Ca>Mn>Pb. The occurrence of zinc with such impurities has earlier been reported in the previous session. Table 5. Metallic content of Zinc ore (mg/Kg) 3.1.5 Metallic content of gypsum Heiska (2011) have reported the presence of metallic impurities including; Fe, Se, Mg, Al, Si, Cu, Zn, Pb, Cr, La, Ce, Nd and Y in gypsum. As presented in table 6, the main metallic component of gypsum which is calcium was evaluated to be 9921.03 mgkg-1, representing 97.15 % of the total metallic content of the studied metals. Other metals such as Cr, Fe, Mg, K and Pb were found present in the acid leached mineral in the order Mg>Fe>K>Cr>Pb. The dominance of Mg as an impurity in this ore is much expected as the metal ion (Mg2+) is known to occur in areas where there calcium deposits exchanging at its lattice and together causing water hardness. Table 6. Metallic content of Gypsum ore (mg/Kg) 3.1.6 Main metal component and impurities ratios of studied ores In table 7 and fig. 2, the summary of these ratios are presented. Lead ore had the highest level of total metallic impurities recording about 28.69 % as impurities in its ore. Others had low metallic impurities in them. Zinc ore recorded less than 10 % as metallic impurities. On the other hand, metallic impurities in copper, heamatite, magnetite and gypsum were less than 5 %. Table 7.Metal/metallic impurity ratios of studied ores. Fig.2 Metal/metallic impurity ratios of studied ores 4.1. Conclusion The analysis of metallic content of some of the Nigerian mineral ores presented from the result indicates that the studied metallic ores are rich in their principal metallic constituent. The only exception observed is the high impurity content of galena (Lead ore). All the other mineral ores had a little percentage of metallic impurities in them. It is gain saying that these raw materials could serve as very rich industrial feedstock that will require little processing and thus serve cost. The high Zinc and Manganese content of the galena is disadvantageous in terms of the metallurgical process that will be required to recover the major metallic content as well as the appreciable contents of the other metals which are equally of industrial importance. REFERENCES [1] Smykatz-kloss, W. Determination of impurities in minerals by means of Standard Differential Thermal Analysis, â€Å" Purity Determination by Thermal Methods, ASTM STP 838, R.L Blaines C.K. Schoff, Eds., American society for Test and Materials, 1984, 121-137. [2] Zhang, W and Cheng, C. Y. (2007). Manganese metallurgy review. Part I: Leaching of ores/secondarymaterials and recovery of electrolytic/chemical manganese dioxide. Hydrometallurgy 89 (2007) 137–159. [3] Alafara,A. B and Folahan, A. A (2011).Beneficiation of a Nigerian sphalerite mineral: Solvent extraction of zinc byCyanex ®272 in hydrochloric acid. Hydrometallurgy, Hydrometallurgy 109 (2011):187–193. [4] McClung, C. R. and Viljoen, F (2011). A detailed mineralogical assessment of sphalerites from the Gamsberg zincdeposit, South Africa: The manganese conundrumMinerals Engineering 24 (2011) 930–938. [5] Arslan, F, Bulut, M. Olgaà §Kangal, K. TahsinPerek, AlimGà ¼lSebahattinGà ¼rmen (2004). Studies on leaching of massive rich copper ore in acidic ferric sulfate solutions. Scandinavian Journal of Metallurgy 33(1):6-14. [6] Olubambi, P.A., Ndlovu, S., Potgieter, J.H. and Borode, J.O. (2008).Mineralogical characterization of Ishiagu (Nigeria) complex sulphide ore.Int. J. Miner. Process. 87 (2008) 83–89. [7]Ma, J., Ren, J. and Yuan, L (2008). Flotation experimental research of multi-metal sulphide ore. Northwest Geological Research Institute of Non-ferrous metallic ores, Xian 710054, China. [8] Heiska, P (2011). Methods of purifying gypsum. US Patent 20110044883. [9] Hayward, C.R. and Quincy, M (1948). Treatment of iron ore containing impurities including nickel and chromium. US patent. No.45862. New York. [10] Meyer, R. (1931). Process of Beneficiating iron ores. US Patent. Series No.527367. New York. [11] ISO 11047. 1998. Soil Quality – Determination of cadmium, chromium, cobalt, copper, lead, manganese nickel and zinc. Flame and electrothermal atomic absorption spectrometric methods.International Organization for Standardization. Geneva, Switzerland. 6 p. (available at www.iso.ch).

Sunday, October 13, 2019

Easements: Solar Access Protection Yesterday, Today and Tomorrow :: Essays Papers

Easements: Solar Access Protection Yesterday, Today and Tomorrow At tropical latitudes the sun is directly overhead the majority of the time, therefore, solar access is guaranteed without regulation. However, in the United States, solar access is influenced by many factors including; latitude, time of day, season, and angle of the sun. Furthermore, shade and shadows due to vegetation and structure greatly diminish the productive capacity of solar collection. Unfortunately, the right to unhindered solar access does not accompany land ownership rights in the United States. Federal and state governments encourage uses of alternative energy sources by appropriating funds for research and development of alternative energy technologies and through tax credits. Laws and/or regulations that guarantee landowner rights to solar access are critical for continued application of solar collection. Many states have introduced legislation to protect solar access rights, in effect removing barriers for solar energy utilization. Without legal safeguards, tim e and monetary investments in solar collection are fruitless and unwise. Although protected in ancient Greece, it was not until the 1970s and the OPEC oil embargo that U.S. courts and lawmakers began to create legal protection for landowners right to solar access. Consequently, twenty-four states enacted legislation to protect solar access, largely by recognizing the validity of solar access easements (Bradbrook 1988). This paper will attempt to explain easements and their historical context in terms of solar access rights. Additionally, we will explore the future of solar access regulation and law in terms of what needs to be done to create successful legislation that guarantees solar access for all. Balancing is a key aspect of legal challenges to solar access. This term refers to the balance between the rights of one landowner to use the sun as a source of energy versus the rights of neighboring landowners to fully exercise their private property rights including economic gain as a result of using their land (Charter 1983). Easements are collectively viewed as a mechanism of solar access protection that successfully weighs political, economic and legal concerns (Beaumont and Imperati1984). Easements can be complex especially when dealing with property rights. To simplify our discussion we will consider easements to be a property right transfer, agreed upon in a written covenant that guarantees one landowner a limited right to access a benefit from another’s land.