Thursday, September 26, 2019

International competiveness and innovation Essay

International competiveness and innovation - Essay Example Globalisation is considered to be one of the most important events of the modern civilisation. It has brought major developments in the human activities as well in the thought process. This has made their thought process more liberal and innovative. People are using their innovative mind as a tool for economic and social enhancement. Innovation is a common trait among scientists and entrepreneurs who use this trait to bring social, technological and economic developments. Innovation refers to the creation of new ideas, concepts, thoughts that can be further be used for growth and developments. Primarily, innovation is categorized into two major types i.e. radical and incremental. Radical innovation involves the performance improvements of product or services and incremental innovation results in bringing improvements in production process like efficiency, cost-effectiveness etc (Urabe, Child and Kagono, 1998, p.4). Innovation is one of the core features of modern society and technolo gical improvement is a major outcome of this feature that boosts the growth of an economy. The changing technological system has influenced the entire structure of an economy. Modern technological system has led to upgradating international trade and business causing enhancement of economic parameters. Moreover, with the technological developments, many new industries have been evolving to meet the latest of population. On the other hand, the existing organisations also aim to implement latest technologies for shaping their performance for gaining an upper hand and sustainable competitive advantage in the market. Constant technological innovation has become an important criterion for social and economic development and due to this, proper awareness among the entire population is inevitable. People have to realize the importance of basic sciences as it develops a foundation for being innovative, creative and productive. R&D programs are initiated by the organisations seeking technolo gical developments and performance enhancements. 2. Collaborations and Alliances The business environment of the modern world is characterised by highly turbulent phases. With the advent of globalisation firms are increasingly trying to reach out to new consumer markets. Collaboration and alliances are largely used as a tool by business organizations to enter new markets. This strategy has largely been used by the airlines industries to form mega consortiums so as to gain strategic advantage. An example in this regard is the airline industry which has used collaborations and alliances for research and development activities. The major players in the American and European airline market which are dominating the global aerospace industry have used collaborations to enhance the level of research and development activities. In spite of the advantages of a strategy of collaboration and alliances, ‘spillover’ effects are also associated with this strategy. The ‘spillove r’ effect has largely been observed in technology intensive industry segments like biotechnology. However, the analysis of literature reveals considerable difference in the nature of ‘spillover’ in the aerospace industry with patents and licensing being the most prominent difference between the two sets of industries. Difference in demand and supply dynamics also generates considerable differences. The main sources of ‘spillovers’

Strengths and limitations of assessment methods Essay

Strengths and limitations of assessment methods - Essay Example This research will begin with the statement that different assessment methods can be more or less effective in assessing the different skills, attitudes, and knowledge of your students. A teacher would probably set up a practical activity and have learners demonstrate their skills for assessment. Some learners are not, however, as confident as others demonstrating practical skills and need more time to observe others or to practice these skills in a less formal setting. Practical assessments, such as demonstrations, presentations, and simulations can be limited with regards to assessing learners’ theoretical understanding of a subject. Group discussions can engage and motivate the majority of students but some learners might feel left out. Multiple-choice exams provide opportunities for learners to receive immediate feedback and results but do not provide them with opportunities to elaborate on concepts. Essays, on the other hand, provide learners with opportunities to explore their ideas and elaborate on concepts relating to the subject but are difficult to assess. Some assessment methods, like role-plays, can be â€Å"holistic† and help you assess the knowledge, skills, and attitudes of your learners but some learners can be inhibited by their nerves. Given the above strengths and weaknesses of different assessment methods, it is important for an instructor or a teacher to consider individual learner needs. For instance, it is essential that any initial assessment procedure is done in the context of recognizing a learner’s aspirations as well as learning goals.

Tuesday, September 24, 2019

Agile Software development (individual Reflection Report ) Essay

Agile Software development (individual Reflection Report ) - Essay Example alyze and gather various sets of information on agile development process so as to use its techniques in developing the Student Attendance Monitoring System. The group got information from lecture notes, books and online sources about the Agile Development process. The group was able to come to an agreement that the system offers a framework that is lightweight, entailing a collection of development methodologies which are iterative used by development teams. From the information that the group gathered, it was clear that agile development software delivers working software of high-quality in the functionality of business value. This is the kind of software that the group needed in the development of the monitoring system. Another technique that the group was looking out to in the agile development process was its combination of methodologies such as question-and-answer (QA), project management, and even in engineering practices, together in a way that will help the agile development team through processes of managing, planning and delivery of the software. Every member of the group had a role to play, assigned by the group leader. With the combination of all the roles, the group saw the realization of its objective on the assignment. The members gathered information from sources mentioned earlier. The group was able to compile the information that Agile’s most popular methodologies include the extreme programming methodology (XP), Scrum, Kanban and hybrid methodologies. The group noted that even though these software methods have approaches that are specific and unique to each of them, they have the same core values and share a similar vision stated in the agile manifesto (Holcombe 2008). During the development process, the group employed some of the XP practices. The practices were pair programming, system metaphor, test first development, small release, and continuous integration and collective ownership. All the group members knew how the system works

Monday, September 23, 2019

Exam_4 Essay Example | Topics and Well Written Essays - 1000 words

Exam_4 - Essay Example These components are applied in operational management allowing the management to access up-to-date data in real-time. Therefore, operational analytics offer an insight of the data within a data warehouse because it allows greater visibility of the various forms of data at a great speed (Turban, Sharda, Delen & King, 2010). OLAP (Online Analytic Processing) is the commonly used technique in data analysis employed within data warehouses driven by the increase in data volumes and the value of data-driven analytics in business. OLAP is also referred to as the capability to effectively manipulate and analyze data from various perspectives using its operational structure that relies in the concept known as cube. This concept has a multidimensional data structure that allows fast analysis of data because arrangement of data into cubes overcomes the limitations associated with relational databases (Turban, Sharda, Delen & King, 2010). KPI (Key Performance Indicator) represents a strategic objective and measures performance against a goal. KPIs are multidimensional and upon translation, this indicates that KPIs encompass various unique features. One of the distinguishing features includes strategy because KPIs embody a strategic objective. Moreover, KPIs measure performance against specific targets that are defined within the strategy, planning, or budget allowing the targets to take different forms like achievement targets, reduction targets and absolute targets among others. KPIs also have ranges because objectives have performance measures like above, on or below the target. Encoding in KPIs allow ranges to be encoded in software enabling the display of performance through colours like green, yellow and red based on percentages or other complex rules. Time frames in KPI mean that targets are assigned time frames within which they have to be accomplished; as well, the time frames are often divided into small int ervals to allow monitoring of performance

Sunday, September 22, 2019

Managing Change Assignment Example | Topics and Well Written Essays - 250 words

Managing Change - Assignment Example Every department of the company should be involved in the process of change. Human resource management plays a very important role in the process of organizational change. When the change is implemented there is always a necessity in personnel training. Human resources department provides expertise in coordinating change and organizes personnel training. HR managers help employees understand their new roles in the company that underwent change and influence their perception of change that is very important for every company: Reh states: â€Å"an individuals degree of resistance to change is determined by whether they perceive the change as good or bad, and how severe they expect the impact of the change to be on them. Their ultimate acceptance of the change is a function of how much resistance the person has and the quality of their coping skills and their support system† (Reh). The department implements personnel selection as the changes, which are implemented, usually demand hiring new specialists. Appropriate human resource management helps implement successful organizational

Saturday, September 21, 2019

To Kill a Mockingbird Racial Differences Essay Essay Example for Free

To Kill a Mockingbird Racial Differences Essay Essay In To Kill A Mockingbird by Harper Lee, the main themes of racism and social inequality are caused by cultural differences. The book demonstrates the struggles associated with the cultural differences in Maycomb, Alabama during the 1940s. The cultural differences are based on the social classes and hierarchy in Maycomb. At the top of the hierarchy are the relatively well-off Finches, with regular townspeople below them. Then there are farmers like the Cunninghams, and then the poor white people like Ewells and finally the blacks. Examples of cultural differences, which cause problems for the inhabitants of Maycomb, come from almost every character. Cultural differences today are profoundly different from those 70 years ago. Racism is not as prevalent and social inequality is almost nonexistent. The first instance of social inequality comes on Scout’s first day of school. When Walter Cunningham denies Miss Caroline when she offers him a quarter for lunch, Scout must explain that Cunninghams never take what they can’t pay back. Also a very dirty Burris Ewell curses at Miss Caroline. This reflects the social hierarchy of Maycomb by showing how the Cunninghams and the Ewells poorest white people in the county. Another example of social inequality is Dolphus Raymond’s problems. The inhabitants of Maycomb see Dolphus as an outcast because he married a black woman. Marrying someone of a different race was extremely uncommon at the time. The biggest example of racism and social inequality was Tom Robinson’s trial. Bob Ewell blames Tom Robinson for the â€Å"rape† of his daughter because it would be the most believable story if a black man did it. In the courthouse there is a separate balcony for black people. Tom Robinson was also convicted guilty even after Atticus gives the jury uncontestable evidence proving otherwise. This is the nadir of racism in the county and shows how the county feels towards blacks. Cultural difference not only cause conflict between blacks and whites but also between white people themselves. Atticus and the rest of Maycomb County are at odds because he defends Tom Robinson while everybody else feels that Tom is guilty. This causes many problems for him and his family too.

Friday, September 20, 2019

The Use Of Sewage Sludge As A Fertilizer Environmental Sciences Essay

The Use Of Sewage Sludge As A Fertilizer Environmental Sciences Essay Fertilizers necessary for the maintenance and increase of soil productivity are classified into two categories: 1) organic fertilizers consisted of crop residues, sludge and manure, and 2) inorganic fertilizers which are synthetic fertilizers consisted of 3 key elements: nitrogen, phosphorous and potassium (Merrington, 2002). Organic Fertilizers Sludge Sewage sludge also known as bio-solid is the remainder product of domestic or urban waste water cleaning at waste water treatment plants. It has high levels of organic content as well as plant nutrients. Although it would make a good fertilizer, the pollutant capability of sewage sludge is high as it is also composed of industrial waste (Merrington, 2002). The process where sewage sludge or materials obtained from it are sprayed, injected or spread on land is defined as land application. It is applied on or below agricultural land surface, forests and lawns because it is high in nutrient content and can enhance soil quality (EPA, 1994). In addition, it serves as a fertilizer supplying the necessary nutrients for crops and other vegetation. Sewage is applied in bulk meaning in large amounts by commercial and municipal appliers for various purposes such as agriculture, golf courses and recovery of mining sites (EPA, 1994). In sites such as mining sites which are completely destroyed and barely have soil substrate for vegetation, nitrogen and organic material content need to be higher than normal level before the site is seeded. For the use of sewage sludge in home gardens or lawns, it is available in a bag or small container intended for small-scale use (EPA, 1994). In the use of sewage sludge, it is crucial to keep in mind the negative impacts it can have if not utilized properly. Nitrates which are easily soluble and have high potential for contamination make up majority of the sewage sludge components (EPA, 1994). As a result, great care is taken in its application and the applier as to fulfill requirements set by the government. Although sewage sludge is applied on land to enhance quality of soil, it is also used as a technique for disposing land (EPA, 1994). Sewage sludge is supplied by water companies for famers to use on their land. Although it contains toxic elements, it still has beneficial effects. According to a study done, farmers who use sewage sludge as fertiliser have a saving of 15 million pounds yearly as it contains high levels of nitrogen and phosphorous as well as necessary micronutrients. In addition, it enhances the structure as well as water retention capacity of soil through the organic matter it supplies (Stout, 1979). Usage of sewage sludge as a fertilizer is not a concept that is applied in many regions of the world. Although before application of sludge on land, it undergoes treatment such as anaerobic digestion to have low pathogen count it still contains potentially dangerous contaminants such as copper, cadmium, zinc, PAHs and PCBs. The amount of contaminants present in sewage sludge is dependent upon the source of the sludge (Merrington, 2002). Toxic metals forming a large component of sludge is a well known fact however, the level at which those metals become harmful is the point of debate (Renner, 2001). As a result, some countries are becoming more restricting or banning to protect the health of individuals. Research compiled indicates that individuals who live in areas within 1 km of land-application sites have been found to show irritation of the eyes, throat, skin and lungs preceding exposure to wind from fields that have had sludge applied. It was found that Staphylococcus aureus was the bacteria involved in the irritations observed on exposed individuals. Although sewage sludge may be low in pathogen count, it is crucial to take into consideration possible interaction of pathogen with chemical contaminants and as a result becoming unsafe for the health of individuals (Lewis, 2002). Manure Manure is composed of three key elements; nitrogen, phosphorus and potassium. These elements are a necessity for the growth of plants as well as the enhancement of soil quality through increasing organic matter and water-holding capacity. In addition, acidity is neutralized and compaction is reduced. Manure serves as a great substitute for synthetic fertilizers whose prices increased dramatically in the recent years (MacDonald, 2009). Land application of manure is possible either by grazing animals or transportation from manure storage facilities. Study found that nitrogenous commercial fertilizer doubled in prices in the 2000- 2007 timeframe and then increased again by 62% in between December 2007 and September 2008. Moreover, phosphate commercial fertilizer prices have increased by 115% in the 2000- 2007 timeframe followed by 177% increase between December 2007 and September 2008 (MacDonald, 2009). Although those high prices make manure more appealing, there are limitations that come along with the use of manure. Manure transportation is pricey even if it is not transported very far. (MacDonald, 2009) In addition, manure may not be composed of the exact combination of nutrients required for the growth of specific crops or fields. Moreover, waste that can be transmitted through runoff of nutrients, pathogens and organic matter from land to surface water pose great environmental as well as health risks. Leaching of nutrients and pathogens to ground water, volatile gases and odours contaminating the atmosphere are additional problems faced (MacDonald, 2009). According to the regulations, industrialized livestock production cannot concentrate manure on limited acres as that would exceed the acceptable limits. As a result, it becomes necessary to distribute manure into larger land which in turn requires better transportation as well as application techniques. Storage of manure before it is applied on land can result in problems such as flooding, manure odour and seepage (MacDonald, 2009). Inorganic Fertilizers Nitrogen Nitrogenous fertilizers are a result of combining atmospheric nitrogen with hydrogen to yield final product ammonia. Ammonia is the base found in at least 90% of fertilizers. It is found in the U.S.A. 38% of the ammonia produced is used for fertilizers while the remaining is utilized for the production of Urea. Urea production has increased over the years with an 11% increase from 1967 to 1973 and has become reliable nitrogen source. Hydrogen required can be obtained from varied sources such as natural gas, fuel oil, coal, naphtha and hydrolized water (Stout, 1981). The following chemical equation represents formation of nitrogenous fertilizers 2N + 3H2 -> 2NH3 There is a continuous increase in the use of inorganic fertilizers despite the fact that they require large quantity of energy to produce. Table 11 below displays the use of oil and natural gas for nitrogen fertilizers worldwide. Developed countries utilized approximately four times as much oil and natural gas for nitrogen fertilizer in 1975 (Stout, 1981). Research has shown the greater use of fertilizers in the developed nations has increased yields per hectare. Phosphate Phosphate fertilizers are produced by the use of phosphoric acid, sulphuric acid or nitric acid to decompose phosphate rock. If nitric acid is used further treatment with ammonia is required for it to be utilized as a fertilizer. Although there is lots of phosphate rock available, there are environmental problems associated with mining of those rocks for the production of fertilizers. The sulphur necessary for carrying out the process is obtained from ore-deposit or a by-product of other process. Use of sulphuric acid is very efficient but has the downside of producing large amount of sulphate waste resulting in environmental problems. In addition, world reserve of ore is being depleted and obtaining sulphur from the by-products of other processes is very costly (Stout, 1981). Research shows there is a minimum of 90 * 10^8 metric tons of phosphate rock found in the world and because production in 1972 was only about 13* 10^6 metric tons, there is no concern that phosphate reserves will be diminishing for a while. However, there are environmental problems associated in the mining of phosphate rock such as temporary demolition of land and soil erosion (Stout, 1981). According to the table below it can be seen that phosphate recovery is relatively cheap in North America and Africa followed by Europe while obtaining phosphorous from region such as Oceania, South America and Asia is more costly. Potassium Potassium is the 7th most abundant element in the world and is widely dispersed throughout the world. It is found in soils, rivers, lakes and rocks. Studies have shown that 95% of potash required for production of potassium fertilizers is obtained from underground mines where deposits are 3, 000 feet below the surface in Saskatchewan and 2,500 feet below the surface (Production and Use of Potassium, 1998). There are potassium deposits that are isolated in few parts of the world. Canada, Germany and U.S.S.R. are the top three countries with the highest level of potassium resources. Consumption of potash has exceeded demand over the years (Production and Use of Potassium, 1998). However, research shows that will change in the future and Canada having high potash resources is willing to increase production to meet demand requirements (Stout, 1981). The following table depicts potash distribution in various regions of the world with Canada having the highest in mine production as well as reserve base. Comparisons Between Organic and Inorganic Fertilizers Manure Versus Inorganic Fertilizers Organic and inorganic fertilizers both have their advantages and disadvantages. The following table compares the nutrient content of manure and inorganic fertilizer. It is observed that the level of nitrogen, phosphorous and potassium are significantly higher in fertilizer as opposed to manure. Animal and human excrements contain lower levels of the key 3 elements required for growth. The nutrient content of animal excrement is variable and is dependent upon factors such as type of species and the type of nutrient of feed (Stout, 1981). Sludge Versus Inorganic Fertilizer (Nitrogen Fertilizer) Many studies have been done to test the effect of sludges, synthetic fertilizers and manures on the final yield of crops. Given the same level of water and nutrients, the use of sludges, fertilizers or manure did not have any large impact on crop yield. However, in the long term, due to the presence of micronutrients in sludges, there is potential for damage if metals such as copper, nickel and zinc accumulate (Harrison, 2003). A study was performed to determine the amount of bio-solids necessary to replace nitrogen fertilizer. Different rates of sewage sludge and nitrogen fertilizer were applied in 6 different farms through discing a technique used to turn and loosen the soil in order to prevent the loss of ammonia nitrogen as much as possible. It is important to apply other nutrients to all areas to ensure nitrogen as the only limiting nutrient (Binder, 2009). The above graph shows that sites receiving more sludge (site four and six) had higher yields in comparison to sites that received nitrogen fertilizer. It can be observed that there was minute response to nitrogen fertilizers in all three sites. Results can be explained by the presence of nutrients found in sludge that are not present in nitrogen fertilizers (Binder, 2009). Advantages and Disadvantages Advantages of organic fertilizers Rapid decomposition of organic fertilizers makes nutrients highly available. Organic fertilizers are bulky and readily available. Energy is not directly needed in the manufacturing process and they are highly renewable. In addition, they also have little direct cost and provide a method to dispose waste. Although they dont have high amounts of the three key elements they have other minerals that are not found in synthetic fertilizers that contribute in increased water retention capability of soil, its structure and its resistance to erosion. (Morris, 2007) Disadvantage of organic fertilizers Organic fertilizers are not very high in nutrient and analysis of components is not very precise. Decomposition of organic material cannot be controlled as it is dependent on temperature and soil moisture. This results in the release of nutrients when they are not needed. It is very difficult to meet necessary nutrient levels for crop growth solely through the use of organic fertilizers. Waste from humans and animals consist of disease causing microorganisms and therefore need to be disposed of safely (Morris, 2007). Advantage of inorganic fertilizers Inorganic fertilizers on the other hand are very high in nutrient concentration and transportation of handling is fairly easy. In addition, it is analysis of content is very precise and can utilize waste from other manufacturing process (Morris, 2007). Disadvantage of inorganic fertilizers Inorganic fertilizers have increasing cost and are produced from finite resources. It requires large use of energy for manufacturing. Unlike organic fertilizers, availability is dependent on production, cost and region. Moreover, inorganic fertilizers create waste in processing. Although both organic and inorganic fertilizers contribute to water pollution, the manufacturing process of inorganic fertilizers alone results in water pollution. Nitrates pose a big threat due to the increased algae growth in lakes and water supplies. Phosphate fertilizers also have fluorides and sulphur oxides as a by-product (Morris, 2007). Blue-baby syndrome resulting in babies having pale/blue skin as well as lethargic eyes is caused by nitrates found in organic fertilizers contaminating drinking water. Other reproduction problems are also caused as a result of inorganic fertilizers (Morris, 2007). Nitrates from inorganic fertilizers pose a big threat due to the increased algae growth in lakes and water supplies. Algal Blooms result in formation of increased biomass, decreased sunlight to plants found in water, decreased oxygen levels and disruption of food webs. As a result, it is an issue requires great care (Morris, 2007). Regulations and Safety Although animal manure serves as a great fertiliser and soil amendment it has risks associated with it as it can exceed limits resulting in severe environmental problems. To deal with these problems government has ensured to have regulation and conservation programs. In some states there have been lawsuits initiated against livestock operations as a result of damaging water resources from manure (MacDonald, 2009). To meet the requirements of those regulations the livestock operations have to deal with increased costs and as a result it is predicted there will be changes made to manure use. Prices are dependent on the excess manure that needs to be disposed. In addition, if farmers are not willing to take in manure for use in their cropland livestock producers must transport the excess manure farther to use for their crop (MacDonald, 2009). It is absolutely necessary to ensure that sewage sludge applied does not cause any harm to the environment or humans. To ensure safety, requirements that must be met before application have been prepared although they differ from region to region. The following table presents the requirements set by Maryland Department of Environment for application of sewage sludge (OMalley, 2009). In addition, acceptable maximum concentrations of contaminants found in sludge to be applied in land have also been set by the NYSDEC. Cumulative limits represent the maximum level of chemical that can be applied in land repeatedly and over time. The following table displays acceptable limits for various types of contaminants (Harrison, 2003). Restrictions set by NYSDEC for applying Class B sludges makes certain that appliers obtain permits specifically for the sites they want to utilize which also includes acceptable limits of contaminants. Nitrogen levels should also not exceed limits. A mandatory waiting period of 14 months in the case of above ground crops and 38 months in the case of below ground crops have been set by NYSDEC. It is recommended that appliers check with their local regulations as it may vary from region to region (Harrison, 2003). Conclusion In this section we have talked about how organic fertilizers are compared to inorganic fertilizers, including the advantages and disadvantages of each. Sewage sludge is categorized as an organic fertilizer. It is a good fertilizer because of the amount of nutrients it contains. However, regulations are made to ensure that its application is safe to us, animals, and the environment because sewage sludge also contains many dangerous contaminants. In Conclusion The purpose of this report is to provide information about the compositions, the treatments, and the applications of sewage sludge. Sewage sludge comes from wastewater filtration and is often perceived as environmental waste that needs to be eliminated. However, sewage sludge can be used as a fertilizer in agriculture because of the nutrients it contains. The only downside is that sewage sludge also contains many toxic and dangerous substances that must be limited or removed before it can be safely used. Many treatments were developed to limit these toxins and pathogens. Government also made regulations on the applications of sewage sludge to protect the environment. Overall, sewage sludge plays a role in our life and environment. Understanding the importance of sewage sludge makes us appreciate its existence as more than just a mere waste.