Future of Project Management Team Performance Essay

Future of Project Management Team Performance - Essay Example Presently the HP organization is engaged in streamlining process. With the increase in collaborative activities around the world, the works of companies are outsourced to various service providers in a bid to lower the cost (Mullaney, Stubbings and Clarke, 2013). Until now, most of the HP team members had to work  in  one place and route their communication through  landlines  and direct meetings with colleagues.  With advanced research and development of  technology in the Internet and others, it is easy to contact any person and share the requisite information.   The requirement of the technology is limited to the smart phone or any wired device for connection with  the Internet.   As HP is a largest technology company  around  the world and requires  a constant  inflow of knowledge workers, who are experts in current technologies employed  at  the company and  have the capability of assimilation of the continuous innovation. With the continuous research and development in  communication  technology, employees of HP are able to work and  communicate  to  their colleagues and office people with various electronic devices. So, it is possible for them to work from home or any other premises. This facility has facilitated the engagement of talented workforce  that is not locally available.  With  technological improvement, HP has started implementation of flexibility in work in various offices.   With continuous development and improvement in knowledge,  it is imperative that, the project management team should be trained in contemporary styles regularly.  This is also true about various types of certifications that are needed to keep the edge in the changing market. HP continues to implement the policy regarding the training  to  their employees with contemporary knowledge and certifications (Stanleigh, 2015).   It is a fact that with time, everything changes including trends in the workplace. With ongoing research in  the

Malcolm X, the Movie Essay -- Spike Lee

Spike Lee's version of Malcolm X's life is similar to the historical Malcolm X. By watching the movie and knowing who he was and his beliefs, one can easily tell how alike they are. When the movie starts Malcolm Little is getting his hair cut. The appearance is that he wants to look more like a white person. Malcolm X's father is a preacher, but the KKK came to the house to burn it down. Later, Malcolm's father is killed by being tied to the rail road tracks when a train comes. His father died when Malcolm was just a child.. After Malcolm's dad died A white woman came to tell Malcolm that they were going to take her kids away because she was an "unsuitable mother". They then sent Malcolm to a detention home which drove his mother insane. While at a club Malcolm met a white girl by the name of Sophia. They later moved in together. When Malcolm was in his early 20's he met a man which got him into the "gangster" life-style. He then began doing drugs. To feel like he was in with everyone else, Malcolm gets new clothes and a a gun. The gang, and Malcolm got into a lot of gambling. Malcolm messed up and almost got himself killed by the gang. Malcolm had to leave town with Sophia and Shorty, because the gang was still after them. Malcolm and Shorty later robbed a man's house and got caught. Shorty and Malcolm are sent to jail for 10 years at Charlestown State Prison for sleeping with a white women and for robbery. In prison, Malcolm got beaten for not knowing his prison number. He met a man named Banes. Banes talked to Malcolm about God. Banes was trying to get Malcolm out of prison. Malcolm finally reads and realizes what he has to do to get out of prison. Malcolm reads the Bible, other books, and he wrote letters to fellow Muslims. Banes teaches Malcolm about Islam religion and Elijah Muhammed. Finally after ten long years Malcolm finally gets out of prison. When Malcolm got out of prison he decided he would go out on the streets and make speeches about the Nation of Islam. After Malcolm became a Muslim, he went to see Archie. The old gang that Malcolm was in is getting in lots of trouble. While involved with the Muslim Nation, Malcolm meets sister Betty. Malcolm falls in love marries Betty and has three children. Brother Banes, a good friend of Malcolm's, gets beaten by police and then the police take him to the prison. Malcolm is tol... ... of Afro-American Unity. On the 21, of February in 1965 Malcolm was murdered. When he was buried he went by the name of Al Hajj Al-Shabazz, the name that he took in 1964 after his pilgrimage to Mecca. Malcolm has much influence on blacks and whites. Malcolm was a man of the people, in his ways of teaching on the street instead of going to college to become a preacher. The movie Malcolm X was very well portrayed by Spike Lee. It is historically accurate in the life of Malcolm X. It showed many of the struggles that he faced in making black history. The movie Malcolm X showed all the emotion of the original events, and it made the audience feel like they were reliving history. Some may not agree with Malcolm's point of view. However, the movie is accurate, as well as thrilling, and it pulls the audience into it. There is superb emotion and feeling. In all, the movie Malcolm X is a historically accurate movie of the true life of Malcolm Little. -------------------------------------------------------------------------------- For more information on Malcolm X, please visit Three Speeches By Malcolm X, a page that contains other links to resources of this intruiging historical figure.

A Portfolio Reflection of Three Teaching Strategies and There Usage Essay

This writer has been teaching for the past twelve years; the introduction came at the University of the West Indies, Cave Hill Campus after graduating with a BSc. in Sociology and Politics where I first started tutoring in Introduction to Caribbean Politics and Sociology in the undergraduate programme. After three year of working in administration full-time and tutoring part-time, I decided that desk work was not for me as I felt as though I would go out of mind (literally, as the job held no challenges for me and there was no prospects of promotion to anything else but more ‘paper pushing’. To that end I applied to a number of universities in the United Kingdom and was successful. While studying in the United Kingdom for my Masters of Science in Criminology and Criminal Justice, I taught English as a Foreign Language to French and Italian students that summer in 1999. On return from the United Kingdom n September 1999, I started teaching in the Division of General/Continuing Education where I taught Caribbean Politics & Society, Ethics and Citizenship (Cores) and Introduction to Sociology (Elective) to the general college student population; and resume tutoring in the Department of Government, Sociology and Social Work in the Faculty of Social Sciences, Cave Hill Campus. In April 2000 I started teaching in the Division of Commerce in the Department of Government and Political Studies and have since become the Head of the Department with responsibility for the Politics programme. During the summer of that year I lectured Introduction to Sociology in the Summer School Programme. I was asked to design a course for the Regional Police Training Centre to replace a previous course; this was called The Sociology of Crime and I was asked to teach the same. My interest in teaching also led me to create a number of courses at the college and one such course, The Sociology of Crime (Corrections Aspect) was adopted by the Training Division for an accelerated training course 2 for Prison Officers at Her Majesty’s Prisons; this I was also co-opted to teach as well. To date I remain the Head of Department, Government and Political Studies and I am a part-time lecturer/tutor in FOUN 1301 – Law, Governance, Economy and Caribbean Society at the Cave Hill Campus, a part-time lecturer in Drugs and Society (Summer School Programme), a part-time Tutor at the Regional Police Training Centre and Her Majesty’s Prisons Dodds. The portfolio has been defined as â€Å"a systematic and organised collection of evidence used by the teacher and student to monitor growth of the student’s knowledge, skills, and attitudes in a specific subject area† (Blake et al. 1995). Others (DeBruin-Parecki, et al. , 1997) have provided a more contemporary view which envisions the portfolio as â€Å"a purposeful, collaborative, self-reflective collection of student work generated during the process of instruction†. This paper is intended to help the writer to systematically gauge her progress toward the teaching profession by developing a portfolio. More importantly, it is intended to help other teacher candidates think reflectively on their decisions and experiences. Institutions of higher learning across the nation are responding to political, economic, social and technological pressures to be more responsive to students’ needs and more concerned about how well students are prepared to assume future societal roles. Faculty are already feeling the pressure to lecture less, to make learning environments more interactive, to integrate technology into the learning experience, and to use collaborative learning strategies when appropriate. The emphasis of learning to learn in curriculum reform has signaled to teachers to adopt student-centred strategies of teaching and different modes of assessment. The basis for the foregoing can be found in the Ministry of Education White Paper on Education Reform (1995). During the researcher’s years of teaching she has observed some unfavourable social skills being displayed by students in the classroom. Simple courtesies such as sharing or 3 saying â€Å"good-morning† appear to be disappearing from the habits of some students. This is symptomatic of the serious underlying problems in our society that need to be addressed urgently. The regularity with which some reference is made to the conduct of our youth, whether it is by teachers, parents, the media or society as a whole is disconcerting. If not curbed, these children take negative behaviours into their adult lives and this can be detrimental to the society as a whole. Cooperative/collaborative learning, portfolio assessment and problem solving/critical thinking, as an alternative assessment, are increasingly being used in higher education facilities around the world and here at the Barbados Community College, specifically in the Department of Government and Political Studies. Before embarking on this course of study, much of the knowledge this writer operated with and under was done based on what was never wanted as a student, the old way of mere â€Å"pallaring†. Notably, the change from listening to teachers teach and answering examination questions to taking the initiative to learn and demonstrating competence with self-selected evidence is a great challenge to the students. This paper first discusses the various constraints and difficulties of using, cooperative/collaborative learning, portfolio and problem solving/critical thinking as assessment and instructional strategies. The paper concludes with a discussion of the implications for successful use of these three strategies as a useful form of teaching and assessment can be measured at the same time. Included in this paper will be examples of artefacts of each teaching strategy along with a rationale and description of teaching strategy. It can be asserted that many students find the transition into Higher Education quite difficult, particularly if they have not studied for some length of time; also coming from the high school environment the same is obtained as many of these students have been ‘spoon fed’ and find it hard to adopt the new mode of teaching. It is against this backdrop that the writer layout this paper reflecting on various teaching strategies, namely Cooperative/ Collaborating Learning, Portfolios, and Problem Solving/Critical Thinking. Teaching strategies can be defined therefore as ways in which instructional material and activities are presented and conducted in an effort to meet the needs of every student. Notably, teaching strategies will vary from tutor to tutor and is usually based upon which method/strategy (ies) a particular tutor is most at ease in using and its effectiveness. On the other hand a teaching method is a way of presenting instructional materials or conducting instructional activities. The use of this portfolio is designed as an educational tool to present knowledge gain through thorough reading and based on the information presented by the various groups in the course. This teaching strategy can be used to improve the attitudes and performance of Tutors and Teachers within the classroom. It consists of reflections, artefacts and projections on each teaching strategy i. e. ooperative/collaborative learning, portfolios, and problem solving/critical thinking. Notably, establishing clear, practical classroom rules at the start of the school year can help you keep students on track to learning while promoting good behaviour and responsibility. Strategies focused on increasing student participation and learning were developed and implemented in three statics sections of varying sizes over the last two years. Overall student perception of these strategies and their impact on learning in three sections of different size is very favorable. In addition, analysis of student ratings grouped by cumulative GPA indicates different strategies are perceived as helpful by different groups of students. However, implementing a combination of strategies seems to help all groups. Many of these strategies work across all class sizes and do not require significant investment in technology or hardware. However, more work needs to be done to determine the effect of these strategies on actual student learning or performance. 5 A word of caution is appropriate. This paper describes different strategies but it is important to note that strategies by themselves may not improve student learning. How strategies are implemented by the instructor and the instructor’s attitude plays a significant role in student learning. An appropriate quote comes from Louis Schmier: â€Å"Education without caring, without a soul, without a spirit, without purpose beyond subject matter is as viable as a person with a brain but without heart. Pedagogy, technology, and techniques are no substitute for love and caring†. A Reflective Paper on the use of Cooperative/Collaborative Learning as a Teaching Strategy Cooperation is working together to accomplish shared goals. Within cooperative activities individuals seek outcomes that are beneficial to themselves and beneficial to all other group members. Cooperative learning is the instructional use of small groups so that students work together to maximise their own and each other’s learning. The idea is simple. Class members are organised into small groups after receiving instruction from the teacher.

Mental And Physical Effects Of Marijuana - 1752 Words

Mental and Physical Effects of Marijuana Marijuana - also named weed, hash, pot, Mary Jane, and many others– is, according to the National Institute on Drug Abuse, the number one used illegal and addictive drug around the globe (Williamson, Buckland, Cunningham, 2013). Users of the psychoactive plant range anywhere from adolescents to senior citizens, and from all social and economic classes. It has, in recent years, gained approval by the FDA for use as a medicine to help treat symptoms of various illnesses – both mental and physical. Thousands of individuals are now using marijuana, and numbers are likely to increase, as the drug may be on the verge of being legalized nation-wide. Surveys from the United States show large support in using marijuana for recreational purposes - 56% - and support for its use as medicine - 70% (Gonzalez Swanson, 2012). Though multitudes of people use the drug for its effects and potential benefits, not many know exactly how it achieves these things within ones bodies or their minds. People, whether using the drug or not, need to know what marijuana is, how it interacts with the body and brain, and the effects that are produced from this interaction. What is Marijuana? Marijuana is actually a plant called Cannabis sativa – or more specifically, its leaves and flowers. These sections of the plant are removed, dried up, rolled into cigarettes, and smoked (Fackelmann, 1993). Though smoking is the most common method of consuming theShow MoreRelatedEffects Of Marijuana On The Minds Of Many Americans1257 Words   |  6 Pages000 people arrested annually on marijuana-related charges (Smith). Because of this, the topic of marijuana, specifically legalizing marijuana, has been on the minds of many Americans. Some of the American population does not see marijuana as an issue because they think it is not as harmful as some other drugs. On the other hand, scientists, doctors, and the rest of Americans view marijuana as a dangerous drug that should stay illegal because of the harmful effects that it can have on a person. NegativeRead MoreThe Harmful Effects Of Marijuana On The Minds Of Many Americans1250 Words   |  5 Pagespeople are arrested annu ally on marijuana-related topic (Smith). Because of this, the topic of marijuana, specifically legalizing marijuana, has been on the minds of many Americans. Some of the American population does not see marijuana as an issue because they think it is not as harmful as some other drugs. On the other hand, scientists, doctors, and the rest of Americans view marijuana as a dangerous drug that should stay illegal because of the harmful effects that it can have on a person. ThroughoutRead MoreThe Legalization Of Medical Marijuana1314 Words   |  6 PagesMarijuana is the most frequently abused illegal substance worldwide. Not only is there no legitimate medical use, it has been tied to physical, mental, and emotional damages. â€Å"Marijuana refers to the dried leaves, flowers, stems, and seeds from the hemp plant Cannabis sativa, which contains the psychoactive (mind-altering) chemical delta-9-tetrahydrocannabinol (THC), as well as other related compounds† (National Institute on Drug Abuse). There are many supporters of the legalization of medical marijuanaRead MoreOver The Years, There Has Been A Great Amount Of Discussion1533 Words   |  7 Pagesof marijuana use. And of course, over the years, there has been a great amount of discussion on whether marijuana should be legalized or continue to remain illegal. Although there may be reasons as to why marijuana legalization could be considered a good boost to the Canadian economy, there are many more reasons as to why the legalization of marijuana should not happen mainly due to the safety of the user and the society as a whole. Marijuana should remain illegal in C anada because marijuana tendsRead MoreShould Marijuana Be Legal?882 Words   |  4 Pagestopic Marijuana. First reason is Its history because history of Marijuana is Interesting. Marijuana is used from the ancient time for various reasons, like in malaria, gout, rheumatism, nausea and labour pain. Marijuana used a thousand years ago first in the middle Asia and south Asia then It travelled to European countries and into the United state of America. Cannabis is also known as Marijuana and It is obtained from different cannabis family plants like cannabis sativa and indica. Marijuana containsRead MoreEffects Of Marijuana On The Body1495 Words   |  6 PagesThe Effects of Marijuana on the Body Marijuana is considered in popular culture to be a widely accepted mainstream recreational illegal drug used in the United States; its use comes with severe adverse side effects that are often overlooked. Long-Term use of marijuana sis shown to have negative effects on physical, mental, and environmental health. Studies have shown that in the United States, up to 20% of daily marijuana users become dependent (Marijuana and Lung Health) showing a physical or emotionalRead MoreMarijuana Should Not Be Beneficial For Medical Purposes1080 Words   |  5 PagesMarijuana has proven to be beneficial for medical purposes. It has therapeutic effects that will ultimately allow patients with adverse health conditions to improve their quality of life. Legalizing marijuana can also improve the state of the United States’ economy through taxation and creation of job opportunities. Additionally, it can reduce the crime rate in the United States and save the United States tons of money. Cont rarily, marijuana should not be legalized for recreational usage. ExtensiveRead MoreShould Marijuana Be Banned? Essay1267 Words   |  6 PagesTo begin with marijuana is a natural plant grown in countries outside of the US. However, marijuana known to naturally grow from the earth, which its natural state is a dry leafy flower stem or in medical terms labeled hemp plant or Cannabis Sativa. Next, the active ingredient in marijuana contains mind altering chemicals called THC (9-tetrahydrocannabinol) and other related compounds made, from the cannabis plant. Not to mention, marijuana is the most widespread illegal drug used, in addition toRead MoreShould Marijuana Be Legalized?1174 Words   |  5 Pageswith the negative effects of these substances, especially the effects of marijuana. Those who do not know enough about drugs generally think that â€Å"marijuana is bad for you† or â€Å"marijuana can kill people†. Although these preconceived notions do not often have sci entific data as backup, there have also been multiple studies supporting the claims that marijuana is detrimental to people ´s health. Even though today many people, especially teenagers, do support the legalization of marijuana, this recreationalRead MoreShould Marijuana Be Legalized?1524 Words   |  7 PagesMarijuana makes you calm. Marijuana reduces stress. Marijuana cures diseases such as cancer. Marijuana is not a drug. Marijuana is a plant; therefore it is not dangerous to one’s health and overall being. Many have heard it all before, the hundreds of reasons as to why marijuana is deemed as a â€Å"safe† drug and why it should be legalized, yet people have not quite heard the hundreds of reasons as to why it should stay illegal. In today’s society, there is a huge controversy on the topic of marijuana

Essay about Bio 101 Evolution Lab - 900 Words

Evolution Lab BIO/101 Pooja Thakur 7-23-12 Evolution Resulting From Natural Selection INTRODUCTION The Evolution Lab simulates environmental situations to determine effects on evolution over periods of time. This lab experiments with the evolution of finches on two different islands over 100, 200, and 300 years. By manipulating parameters that influence natural selection, the effects that natural selection have on the evolution process can be studied. HYPOTHESES †¢ The size of the island will influence the population. †¢ The amount of precipitation will influence beak size. †¢ Variances in beak size will influence beak size. MATERIALS The materials needed for this experiment consist of a computer and†¦show more content†¦This test was also run for 300 years then the data was collected. DATA Test 1 |Parameter |Darwin Island |Wallace Island | |Initial Beak Size |12 mm |12 mm | |Heritability |0.7 |0.7 | |Variance |1 |1 | |Clutch Size |10 eggs |10 eggs | |Precipitation |20 cm |20 cm | |Population |200 birds |200 birds | |Island Size |0.5 km |1 km | | |Results | | |Year |Darwin Island |Wallace Island | |2096 |578 |1107 | |2196 |632 |1236 | |2296 |689 |1458 | [pic] DATA Test 2 |Parameter |Darwin Island |Wallace Island | |Initial Beak Size |12 mm |12 mm | |Heritability |0.7 |0.7 | |Variance |1 |1 | |Clutch Size |10 eggs |10 eggs | |Precipitation |20 cm |40 cm | |Population |200 birds |200 birds | |Island Size |0.5 km |0.5Show MoreRelatedEssay on Evolution of the Finch on Darwin Wallace Island832 Words   |  4 PagesEvolution of the finch on Darwin amp; Wallace Island Wendy Chavez Principals of Biology/BIO 101 12/10/2012 Michael Erickson University of Phoenix Evolution of the finch on Darwin amp; Wallace Island A small population of finches have been discovered on Darwin and Wallace Island. 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Islam Religion and Death Penalty - 1424 Words

Islam Religion and Death Penalty: Islam is a term that comes from an Arabic root word that means peace and submission that have always been used as the universal Muslim greeting. Based on the origin of this word, the Islamic religion teaches that peace can only be found through submission to Allah (Almighty God) in soul, heart, and deed. As a monotheistic and Abrahamic religion, Islam is articulated by the Qur’an, which is a book regarded as the precise word of God. The religion is also articulated by various teachings and example of Muhammad who is regarded as the last prophet of God. An individual who believes in and consciously adheres to the teachings of the Islamic faith is called a Muslim (Huda par, 2). Muslims believe that Islam is the total and universal mode of prehistoric faith, which was revealed in the ancient days across the globe. In addition, these people hold that God is one and unparalleled and the reason for an individual’s existence is to worship God. While they believe that Abraham, Moses, Adam, Noah, and Jesus are prophets, Muslims maintain that earlier messages and revelations of God have been relatively misinterpreted or changed over time. As a result, they believe that the Arabic Qur’an is the unaltered and final revelation of God. The Islamic religion is also based on several religious concepts and practices including the five pillars of Islam. These pillars are the fundamental concepts and mandatory acts of worship that touches nearlyShow MoreRelatedCapital Punishment1276 Words   |  6 PagesBuddhism d. Judaism and Christianity e. Islam II. Who a. Countries b. States c. Juveniles III. What Ways IV. Why, Laws Broken a. Laws about it b. Cost c. Wrongful accusation V. Increased Murder Rate VI. Conclusion Did you know, that according to a study at North Carolina State, a murder case cost 2.16 million dollars more with a death penalty then with a sentence of life imprisonment? It s true! 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The Impact Of Hydroelectric Power Development Environmental Sciences Essay Free Essays

string(125) " where spillage of flow occurs via wasteweirs or Gatess because the bing turbines ‘ size can non utilize all the flow\." Over the old ages, there has been increasing involvement in electricity coevals utilizing hydropower. However, it is merely late that the impacts of hydroelectric power workss on the environment have been recognized ; until now, it was assumed that hydroelectric power coevals was a clean and environmentally friendly electricity production method, compared to other methods. After extended research, it has been found that hydroelectric power production has some impacts that include production of nursery gases from the disintegrating flora that have been submerged in the dike, and implosion therapy of large land countries, rendering them unfit for agribusiness and other human activities, among others. We will write a custom essay sample on The Impact Of Hydroelectric Power Development Environmental Sciences Essay or any similar topic only for you Order Now Possibly the biggest impact from hydroelectric power production is the consequence it has on H2O quality. Dam building, for the intents of power production, can alter the measure and quality of H2O of a river. The disintegrating flora contains bacteria that may besides transform the quicksilver found in basic reservoir stones into a H2O soluble signifier, which builds up in the fish organic structures and accordingly presenting a wellness hazard. This paper will research the impact of upgrading of bing hydroelectric power workss on H2O quality by, foremost, depicting typical proposed enterprises and options when upgrading bing hydropower workss, and so researching the environmental impacts of such proposed enterprises and options. 2.0 Description of proposed enterprise and options For any undertaking that aims at upgrading an bing hydropower works, the chief aim should be to increase efficiency and increase energy production and end product to the upper limit with no unwanted environmental impacts. 2.1 Upgrading bing hydropower workss Several methods exist that can be used to increase the production of power at bing hydropower workss. Normally, these methods can be grouped into two: methods that increase the power production efficiency and methods that increase the useable H2O or caput volume. To better efficiency, old turbine smugglers and Gatess can be replaced with newer, more efficient designs ; coatings can be used to minimise loss of energy through clash in flow channels ; the public presentation of the turbine can be tweaked ; turbine smugglers can be replaced with newer 1s holding a similar design to cut down pits and other defects ; generator efficiency can be increased by rewinding them ; H2O escape can be reduced in Gatess and other constructions ; junk path cleansing can be bettered to minimise clash losingss ; and automated systems for aggregation and analysis of diagnostic informations can be set up. To increase the useable H2O or caput volume, the dam lift can be increased to increase the caput and storage capacity ; more turbines can be added to utilize the H2O that is being spilled ; put ining newer turbines and generators that have wider flow scopes ; and other alterations can be effected during distribution of storage and releases of the reservoir. 2.2 Retrofiting dikes to develop new hydropower The chief activities during retrofitting a dike for hydropower coevals include: constructing sluicegates, consumptions, and a human dynamo that may, in high-head dikes, be located downstream, or, in dikes with low caput, replace subdivisions of the bing construction ; employment of extenuation actions to minimise the undertaking ‘s impacts ; hard-on of power lines to link the undertaking into the bing power grid ; and rerouting through the H2O turbines. Monitoring of quality of H2O, testing to forestall fish from come ining the turbine, edifice of fishing installations, and flow release conditions can do up the extenuation actions. 2.3 Options to hydropower development at bing dikes When upgrading a hydropower works to better its bring forthing capacity, it is presumed it replaces the bing capacity since it is dearly-won to run because of high costs, for illustration disused workss or those that use dearly-won fuel, and the new capacity that is more expensive than hydropower coevals at bing dikes. To find the right capacity mix that the proposed hydropower ascent will replace, there is demand for a complete respect for future energy disbursals, the nature and location of bing and future hydropower workss, and environmental factors particular to a site. 3.0 Environmental impacts of the proposed enterprise and options As has been established, any hydropower development, and other methods of bring forthing power, causes several environmental impacts. The following subdivisions explore the impacts of hydropower ascents and besides for power coevals utilizing fossil fuels, which is the most likely option. 3.1 impacts of upgrading bing hydropower workss Normally depending on the type of upgrade being done, the environmental impacts of hydroelectric works ascents are non as terrible when measured up against other energy development impacts. In fact, upgrades that merely necessitate the generators or turbines to be replaced, go forthing the reservoir ‘s volume and release timings unchanged, have few immediate impacts and may even hold several enduring environmental benefits. The ascents that see the volume and release timings change on the other manus may some permanent impacts. 3.1.1 Water resources 3.1.1.1 Construction Impacts Minor ascents do non necessitate much work and therefore hold small or no impacts on the H2O resources, like eroding, oil spills, and riverbed break, among others. However, major ascents would necessitate more wide building and therefore the impact on H2O resources is increased. Activities in such ascents such as digging or heavy machinery usage during building addition the local creek beds ‘ and Bankss ‘ eroding, doing more sediment tonss and possible deposition downstream. The redistribution of deposits by building may hold harmful effects when the taint of the deposit is local. While enduring impacts on the H2O quality are improbable, building during ascents may take to short-run impacts like little oil spills. Due to the arrest of H2O flow in major ascents, short-run dewatering and stagnancy of the tailwater may happen, ensuing in high growing of algae and changing concentrations of dissolved O ( DO ) which finally adversely impacts aquatic life. 3.1.1.2 Decreased Aeration Turbines able to utilize higher flows may be installed during undertaking ascents where spillage of flow occurs via wasteweirs or Gatess because the bing turbines ‘ size can non utilize all the flow. You read "The Impact Of Hydroelectric Power Development Environmental Sciences Essay" in category "Essay examples" During spillage, the spilled flow may slightly hold increased DO concentrations, or become aerated. When the turbines ‘ capacity is increased, there will be an addition in the flow per centum in the turbine, where aeration is minimum or absent. Entire concentrations of DO would diminish in undertakings where the DO concentration is low and an ascent would do less flow aeration during spillage. In undertakings where spillage happens during high flow periods merely, spillage may be used for power coevals because it does non hold important impact 3.1.1.3 Improved Turbine Aeration To cut down jobs of H2O quality is some undertakings, turbine replacing may be the solution. In the hot season, stratification occurs in most deep reservoirs. At the underside is a bed of low DO concentrated cold H2O, which when released through the turbines means the tailwater will hold deficient DO concentration. To ease this job, the H2O can be aerated prior to go throughing it through the turbine. Research has shown that in a few workss where the turbines have been constructed to entrain air into the flow when it passes through them, aeration of the tailwaters is sufficient and economical ; aquatic life and efficiency may nevertheless be affected. In such undertakings, upgrading of old turbines may enable the installing of self-aerating turbines that accordingly may increase the DO concentrations of the tailwater, finally profiting the environment. 3.1.1.4 Changes in reservoir storage and flow releases As seen, to upgrade bing hydropower workss, methods like increasing the turbines ‘ flow rates or increasing or changing reservoir storage, done by increasing the dike ‘s lift and altering the H2O release periods during the twelvemonth severally, can be used, which may impact the downstream and reservoir H2O quality such as altering the concentrations of DO and temperature of H2O. 3.1.2 Air Quality The impacts of hydropower workss ascents on the air quality are normally impermanent and minimum, and usually occur merely because of dust emanations and other emanations that have escaped from the equipment used in upgrade undertakings that need major building. In fact, hydropower ascents may positively impact the air quality by minimising coevals utilizing fossil fuel. 3.1.3 Aquatic Ecosystems It has been established that the alterations that may happen during building and operation activities during bing hydropower works upgrades impact aquatic life. While minor ascents do non significantly impact the H2O quality, major ascents may ensue in dirt eroding and deposit, chemical and building oil spillage, and break of contaminated deposits, which may impact aquatic life. Increased temperatures and reduced concentrations of DO, hapless tailwater quality, could ensue because of fluctuations in flow releases during building. Furthermore, because of go throughing lowly DO concentrated H2O through a turbine, instead than sloping the H2O over a dike, there could be decreased aeration which besides affects aquatic life. 3.1.4 Riparian and tellurian ecosystems Break to riparian wetlands and home grounds due to building activities is the chief cause of the impacts of bing hydropower workss upgrade on tellurian ecosystems. However, these impacts, which depend on the site or undertaking, are normally insignifanct and merely a few undertakings may do important impacts. Upstream tellurian home ground may significantly be lost through flood because of developments that comprise heightening lifts of the dike. Short-run deposit and fluctuations in flow agendas during building, in add-on to equipment replacing inside edifices, is non likely to hold long-run impacts on tellurian ecosystems. 3.1.5 Diversion 3.1.5.1 Construction impacts Recreational installations will non be significantly impacted by minor hydropower works ascents except during a little building period. Major ascents on the other manus may impact recreational activities. With the possibility of the deposit loads increasing as a consequence of creek beds and bank eroding, the affected H2O quality may impact recreational activities such as H2O skiing, fishing, yachting, and swimming, among others ; such activities may besides be affected by rare minor spillage of oil and lubricators. During upgrade building, there may be dewatering and stagnancy because of controlled flow, which consequences in unwanted growing of algae and low concentrations of DO, accordingly impacting activities like fishing. Open stones, awful odors, loud blares, dust, harmful gas emanations, and eroded Bankss, among others may besides impact the aesthetics and therefore the recreational activities. 3.1.5.2 Long term Impacts Decreased aeration in downstream dike H2O is among the permanent impacts of hydropower works ascent on recreational activities. New turbines decrease the DO concentration, impacting aquatic life and finally fishing activities. Recreational activities may besides be impacted in undertakings where high flow-capable turbines are used because there will be different flow agendas for impoundings. Alterations in the downstream flow graduated table or programming may impact the aquatic life, therefore impacting recreational activities. 3.1.6 Dam Safety and Flooding Concerns for dike safety are normally as a consequence of major, non minor 1s, hydropower works ascents which involves promoting the reservoir degrees that consequences on more structural tonss on the dike, accordingly compromising the general dike ‘s safety factor. In most upgrade developments, deluging frights are uncommon. Still, among the methods of increasing coevals at bing reservoirs is to minimise flood storage so as to do more H2O available for coevals. There would, as a consequence of this lessening in inundation storage, be an increased concern for downstream implosion therapy ; different sites have different impacts and magnitude of the excess implosion therapy. 3.1.7 Energy security benefits Although it will non significantly to the U.S. ‘s entire power grid, the ascent of bing hydropower workss would supply inexpensive and valuable energy signifier that is local and renewable, therefore is non susceptible to foreign ordinance or fuel scarcenesss. The value of energy ensuing from such ascents is felt more during peak demands, even though it may sometimes turn out undependable, particularly during low flows or when more flow releases are required to better H2O quality and aquatic life. 3.2 Impact of new hydroelectric power at bing dikes When an bing dike is developed by put ining new hydropower workss, many advantages are realized, minus the several bad environmental effects experienced during hydropower development at new dikes. This is because at bing dikes, the impacts caused by stream ictus such as submerging of tellurian home ground, obstructor of fish migration, alteration in volume and timing of downstream flow, among others, have already been felt ; more impacts may still be felt during retrofitting. 3.2.1 Water resources 3.2.1.1 Construction Impacts There may be some impermanent impacts on H2O resources that result from the building activities during retrofitting. Erosion at the site of building and the accidental discharge of unearthed stuffs into the watercourse may do the tailwaters to hold sediment tonss. Furthermore, the building activities may do spillage of oil and perturbation and distribution of contaminated deposits present at a dike. These impermanent impacts normally end after building is complete. 3.2.1.2 Change in flow release forms Due to alterations in release agendas of H2O in hydropower workss, the downstream may hold harmful effects like interrupting aquatic life, recreational activities, and increasing eroding of the bank. As such, flow alterations are normally prohibited because they may take down the dike ‘s capacity to run into its initial marks. 3.2.1.3 Changes in tailwater quality due to alterations in release lift Water in a retrofit hydropower workss can be extracted from lifts separate from the initial impounding ‘s backdown lift. During summer, the quality of H2O in deep storage reservoir normally fluctuates with lift. An impounding, with cold H2O normally holding low concentrations of DO in its lower lifts and warm H2O holding high concentrations of DO in the higher lifts, is caused by thermic stratification. In such graded impoundings where the bing release is through a wasteweir or high lift Gatess at the top, there would be fluctuations in downstream quality during hot conditions from high to low concentrations of DO and high to low temperatures when there is installing of a hydropower works retreating from low lifts. There is normally a high heavy metal concentration like Mg and Fe, irritant compounds, in yatter discharged from low lift. Rarely, shallow impoundings may besides hold stratified H2O quality. 3.2.1.4 Change in reserve H2O quality due to alterations in release lift Variations in the backdown lift from a reservoir, in add-on to the impacts discussed before, may besides impact quality of H2O in the impoundment upstream of the dike. A gate release replacing with a turbine consumption at even the slightest lift alteration for case may take down the volume of cold H2O on the reservoir ‘s underside and raise the warm H2O volume in the reservoir in hot conditions. These fluctuations may impact temperature of H2O, production of algae, concentration of DO, and other issues of H2O quality at changing times and sites in the reservoir. Reservoir simulation theoretical accounts are employed in the anticipation of the compound, unpredictable, and site-exclusive impacts. Changing the backdown lift may sometimes be utile for the H2O quality in the reservoir, and sometimes harmful. 3.2.1.5 Nitrogen Super impregnation Hydropower upgrade undertakings cause nitrogen ace impregnation and later the fishes ‘ gas bubble infection which causes the formation of gas bubble in a organic structure of the fish which may kill. Three conditions may ensue in the formation of nitrogen ace impregnation: when releases from the reservoir are really aerated, when air is entrained into severely constructed sluicegates, and when N saturated H2O from inside the reservoir is discharged to tailwaters. Nitrogen ace impregnation does non by and large have big impacts in hydropower development at retrofitted dikes. 3.2.2 Air Quality As has been established, impacts of air quality of retrofitting dikes are similar to hydropower works ascent ‘s local, impermanent and minimum impacts. Happening merely during building, effects may include get awaying dust emanations and equipment usage emanations and are by and large minimum compared with other emanations. 3.2.3 Aquatic ecosystem The aquatic resources during building from dike retrofitting are impacted the same manner as during ascent of bing hydropower workss. There is nevertheless greater opportunity for the impact on aquatic resources, by degrading the H2O and home ground quality, to be more, peculiarly from H2O debasement, because of the major building in this option. Despite the already bing reservoir and the beings ‘ version to the H2O environment, get downing of hydroelectricity production may alter the releases ‘ volume and timing. Consequently, there may be instant and more terrible H2O degree fluctuations in the tailwaters and reservoir, which destroy critical shallow-water home ground for aquatic life. Furthermore, when lowly concentrated DO, cold, deep H2O is discharged from stratified reservoirs will degrade the quality of H2O of the tailwaters and negatively impact the ecosystem adapted to deep warm, extremely concentrated DO H2O releases. 3.2.4 Dam safety and implosion therapy 3.2.4.1 Dam safety Retrofiting hydropower dike has a few dike safety concerns. Because building may necessitate removing of some of the bing dike ‘s parts, there is a possibility of the dike ‘s basis or construction weakening if improperly done. 3.2.4.2 Deluging Design-specific, the building of hydropower workss at dikes with low-head may upsurge the implosion therapy upstream ‘s rate and graduated table. If there is the slightest obstructor in the flows ‘ way due to building, the upstream inundation lifts would increase. 3.2.5 Energy security benefits Although it will non significantly to the U.S. ‘s entire power grid, energy from retrofitting dikes would supply inexpensive and valuable energy signifier that is local and renewable, therefore is non susceptible to foreign ordinance or fuel scarcenesss. The value of energy ensuing from such an option is felt more during peak demands, even though it may sometimes turn out undependable, particularly during low flows or when more flow releases are required to better H2O quality and aquatic life. 3.3 Impacts of coevals utilizing fossil fuels Most of U.S. power production capacity is due to the usage of fossil fuels ( coal, gas and oil ) . The power that would hold been produced by hydropower is so got from the usage of these fossil fuels. 3.3.1 Water resources The coevals of fossil-fuels can take to a figure of effects to H2O resources. In most instances fossil fuels workss are normally constructed following to big H2O organic structures to supply H2O for chilling or to thrust ahead as agencies of conveyance for the fuels. The building of these workss besides interferes with the land countries taking to eroding and as a consequence taking to residue tonss in the H2O organic structures. Coal excavation and transit are the chief effects of coal- power coevals to legion H2O organic structures. In the humid parts coal mines have for a long period triggered serious pollution of H2O organic structures due to altering of the river channels ( because of direct excavation effects, hydrologic alterations to watershed, and increased residue tonss ) and drainage of acids from mines. Although these impacts can be controlled, to a certain extent they can non be wholly avoided. In waterless countries, these effects are less compared to those in humid countries. However, impacts such as change of groundwater can happen. Even though, the transit of fossil fuels by flatboat on H2O resources can do minor impacts, other agencies of transit such as coal slurry grapevines, can ensue into terrible impacts on local H2O organic structures. The lavation of coal at the power works or mine to better its combustion or emanations qualities ; big sums of H2O are consumed every bit good as pollut ion as a consequence of these procedures. Water resources can besides be degraded due to production and transit of gas and oil used in the production of electric power. These effects can be due to offshore oil production and oil spills in the class of refinement and transit. The production of fossil-fuel power workss is the root to several pollution effects to H2O organic structures. Cooling H2O is required by these workss in the condensation of steam after it has been recycled in the boilers. The cooling H2O can be used one time and channeled to come up H2O or it can be recycled through the chilling tower let go ofing the heat out to the ambiance. Significant temperature addition and vaporization in the receiving H2O organic structure can besides be caused by chilling procedures. Water is likewise consumed by the chilling towers through vaporization and the discharge of blow down H2O, which contains higher concentrations of dissolved solids. 3.3.2 Air quality The major beginning of air emanations is due to the usage of fossil fuels in power coevals as compared to the usage hydroelectric coevals. Some of these emanations include ; dust discharged from coal hemorrhoids and mines, vehicles used in excavation and transit of these fossil fuels, the storage and use of crude oil and gas besides release hydrocarbon emanations and emanations from burning. Air quality as an impact of fossil- fuel production is of the greatest concern as it leads to the emanation of burning merchandises such as S dioxide, azotic oxide, atoms and C dioxide. Approximately 70 % sulfur emanations, 40 % of azotic oxide emanations and 10 % of particulate emanations of U.S. are produced during fossil- fueled power production. With most emanations coming from oil and coal burning, natural gas- fuel workss have significantly lowered air emanations. The chief concerns are sulfur dioxide and azotic oxides ; they non merely affect human wellness but besides contribute to acidic rain and dry deposition. Particulates can likewise hold terrible effects on human wellness, conditions and visibleness. Carbon dioxide emanations are besides possible subscribers to planetary heating. Ever since the 1950s, a steady rise in the emanations of C dioxide has been experienced. Whereas about half of the emitted C dioxide released remains in the ambiance lending to planetary heating, the staying half is either dissolved into oceans or taken up by workss or sequestered. 3.3.3 Aquatic ecosystem Several of the impacts due to the building and operation of fossil-fueled power workss to aquatic ecological resources are really different both in sort and magnitude to the impacts brought approximately by several hydropower replacements. Unless a chilling lake is created by the dodo fuel works, the loss of aquatic home ground will be relativity little, compared to those due to upgrading or retrofitting of already bing reservoirs. This will be much less compared to the sum of riverine home grounds that would be lost due to a new hydroelectric impounding. Entrainment, encroachment and chemical and thermic discharges are some of the effects brought approximately by the operation of a chilling system capacitor of a dodo works to aquatic beings. Large sums of solid wastes such as burning ash and scrubber sludge are besides produced by coal-burning power workss. If non controlled, leachates form coal and ash hemorrhoids can degrade the H2O quality every bit good as holding toxicant effects on the aquatic beings. Furthermore, aquatic communities over a big geographical country can see important H2O quality effects and habitat loss associated to the whole fuel rhythm ( coal and oil excavation, polish or cleansing, and ash deposition ) . Aquatic beings in widespread countries can likewise be affected by acerb deposition from fossil fuel workss. 3.3.4 Diversion The state ‘s uninterrupted dependance on fossil fuels as the chief beginning of production for electrical power has appeared to hold important effects on recreational avocations in assorted countries. During the air inversion episodes in some of the major metropoliss in the U.S. , air quality effects due to the burning of coal are already impacting people with respiratory complications who the usage some of these recreational resources. In New England and other parts of the U.S. , acidic depositions from coal burning is said to hold affected fishing in assorted lakes. Drain of acids from coal mines has non merely affect fishing but white water canoeing and kayaking, yachting, swimming, hike and the overall aesthetic qualities of watercourses in Appalachia and in other topographic points. Through the surface excavation of coal recreational chances such as hunting, hike and nature observation can be disturbed throughout the U.S. However, through renewal, these sites may heighten some of these recreational resources. Increased concentrations of nursery gases in the ambiance can besides convey with it impacts to recreational resources such as alteration in the precipitation measures and governments of a part, more serious or more perennial air inversions, raising or take downing of reservoirs capacities, legion or more terrible major storms in the coastal countries, rise in the sea degree, altering of wildlife home grounds, and change of wildlife migration waies and times. Any out-of-door recreational avocation will be significantly be affected by all these. The boring rigs near the refineries for gas and oil used in power coevals can likewise consequence in H2O quality impacts from rigs, oilers or grapevines which may take to occasional oil spills both onshore and offshore. Recreational activities such as fishing, yachting, swimming, and nature observation can besides be affected as consequence of these impacts. Refinery installations ( with both ocular and olfactive effects ) are frequently seen to be noxious topographic points doing them incompatible with recreational resources. Aesthetic enjoyment of such recreational resources can be reduced where there are grapevines. Drilling, production and other research activities due to increased used of gas and oil can hold possible negative effects on these diversion resources particularly in wildlife safeties and delicate offshore locations. In Western United States, in some of the comparatively pristine environment where natural gas desulfurization installations are located near the boring rigs ; ocular, audile and olfactive impacts could be produced where this gas is found. Activities such as hike, runing and nature observation could besides be affected. 3.3.5 Energy security benefits Supplies form Coal and domestic gases are considered to be unafraid energy resource suppliers. In the United States, coal is known to be the richest unrenewable energy resources. Although, fossil-fueled workss are considered to be extremely dependable, they can be besides be affected by terrible conditions conditions such as drouths ( that consequence into inefficient chilling doing it expensive for power production ) . Following the day-to-day rhythm demands, fossil-fuel power workss are non all that efficient. In the quest to extenuate this inefficiency, pumped storage hydroelectric power undertakings and gas turbine workss though less efficient are frequently used because the turbines respond rapidly to altering demands. Environmental impacts which involves air emanations both regional and globally and the high ingestion of H2O are some of the factors that limit the development of new fossil-fueled workss at assorted sites. 4.0 Decision How to cite The Impact Of Hydroelectric Power Development Environmental Sciences Essay, Essay examples