A Summary On The Role Of Fracking - 801 Words

A summary of current viewpoins on the role of fracking given the recent drop in oil prices. Over many decades oil has supplied the global market with a realatively inexpensive method to provide energy and countless products. Without oil the world would not be as well developed as it is today. Large countries such as the USA and China thrive off oil and without it would come to abrubt halt. [1] Saudi Arabia is in possession of vast quantities of crude oil, currently larger than the US. [2] Due to the ease of access for Saudi Arabia to extract their oil, they have much lower production costs, giving them the flexibility to sell their oil at much lower prices. [3] This has forced many international oil companies to match these low prices to stay competitive. As other companies are not able to produce oil at such low prices they are forced into smaller profits, making extraction more costly. [4] Oil can be categorized into two categories, conventional and unconventional. Convenional oil is extracted via straightforward vertically drilled wells inland and offshore from oil pools. Globally the conventional oil production is on the decline. Unconventional oil is extracted from pourous shale rock formations, that act like sponges and soak up oil, making it more difficult to extract. Methods of extraction include horizontal drilling and hydraulic fracturing. Due to the complexity in prodcution, unconventional methods are more costly than conventional ones. Currently unconventionalShow MoreRelatedWater Contamination Caused By Hydraulic Fracturing1505 Words   |  7 Pagesa fossil fuel that plays a critical role in the demand and supply of energy in the United States. It is considered to be a clean burning transition fuel. Compared to coal and oil, natural gas combustion does not generate as much pollution and is therefore considered an ideal partner for renewable energy resources . Natural gas is extracted from shale formations underground that require horizontal drilling and hydraulic fracturing – â€Å"hydrofracking† or â€Å"fracking†. This drilling and extraction methodRead MoreNatural Gas Is A Clean Burning Transition Fuel1141 Words   |  5 Pagesis a fossil fuel that plays a critical role in the demand and supply of energy in the United Sates. It is considered to be a clean burning transition fuel. Compared to coal and oil, natural gas combustion does not generate as much pollution and is therefore considered an ideal partner for renewable energy resources. Natural gas is extracted from shale formations underground that require horizontal drilling and hydraulic fracturing – â€Å"hydrofracking† or â€Å"fracking†. This drilling and extraction methodRead MoreHydraulic Fracturing, The Advantages And Disadvantages2628 Words   |  11 Pages Understanding Hydraulic Fracturing, The Advantages and Disadvantages Prepare By: Dennis Lacerte Submitted Date: December 3, 2014 Contact Information: djamesl@rams.colostate.edu â€Æ' Table of Contents EXECUTIVE SUMMARY 2 INTRODUCTION 2 HYDRAULIC FRACTURING PROCESS 3 ENERGY CONVERSION AND PRODUCTION PROCESS 6 ENVIRONMENTAL AND HEALTH EFFECTS OF HYDRAULIC FRACTURING 7 LAND AND RESOURCE EFFECTS 7 ATMOSPHERIC EFFECTS 8 WATER EFFECTS 8 HEALTH EFFECTS 9 HYDRAULIC FRACTURING ALTERNATIVES 9Read MoreFracking: Natural Gas1936 Words   |  8 PagesFracking is a modern technique to explore natural gas through a controversial procedure. The controversy about scientific evidence for the impact of fracking has raged unabated for over a decade. It has now become one of the most popular debates between the supporters of Greenpeace or environmentalists and the energy companies. Now it’s a centrepiece of discussion in the context of the energy solution and considered as a really important source of energy by last few decades. Recent developments inRead MoreFossil Fuels Is The Next Great Thing1784 Words   |  8 Pagesexample for oil would be fracking. Fracking is where thousands of pounds of water, sand and chemicals are forced down the well to rupture rocks that hold oil and gas (Extreme, 2015). Fracking causes major destruction to land; especially in the back yards in Pennsylvania. Natural gas is also extracted using fracking, but there are other ways as well. During the fracking the toxic chemicals can find their way to water ways and contaminate them. For both natural gas and oil fracking is a temporary solutionRead MoreFracking Transportation And Modeling : A Literature Review3710 Words   |  15 PagesFracking Transportation and Modeling: A Literature Review Table of Contents 1.0 Introduction 3 2.0 The impact of fracking on transportation: An overview of national, regional and safety challenges 4 2. 1 National challenges 4 2.2 Increasing safety Concerns 6 2.2.1 Pipeline safety issues 7 2.2.2 Railroad safety issues 7 2.2.3 Barge safety issues 10 2.2.4 Trucking safety issues 10 2.2.5 Safety concerns and impact on mode split 10 2.2 Regional challenges 11 3.0 Modeling fracking transportation needs:Read MoreFracking4932 Words   |  20 PagesEconomic Boom (2013) and eleven other business books. He won the Gerald Loeb Award, a recognition of excellence in journalism, especially in the fields of business, finance and the economy.1 Morris defines hydraulic fracturing, more commonly known as fracking, as the process to extract gas from naturally occurring underground deposits of shale by injecting a mix of water and chemicals through directional drilling which forces open fissures in the rock and releases methane gas.2 In recent years, high productionRead MoreAustralian Economics Effects On The Mining Industry Essay1472 Words   |  6 PagesSummary: By 2016, Australia assess that mining had raised genuine per capital household extra income by 13%, raised genuine wages by 6% and brought down the unemployment rate by around 1 ¼ rate focuses. There have additionally been cost. The mining has prompted a huge valuation for the Australian dollar that has weighed on different enterprises presented to exchange, for example, assembling and farming. The world price of Australia s mining exports has more than tripled over the previous decadeRead MoreU.s. Lng Exportation Policy And The Wto8704 Words   |  35 PagesOIL AND GAS REVOLUTION AND THE US ECONOMY 11 (2013). 9. See, e.g., AM. PETROLEUM INST., WHAT Is FRACKING AND UNCONVENTIONAL OIL AND NATURAL GAS DEVELOPMENT? (2013), available at http://www.api.org/-/media/Files/Policy/Hydraulic-Fracturing/What-is-Fracking.pdf; IHS, supra note 8, at 53-54. 10. See, e.g., Russell Gold, Colorado Community Passes Fracking Moratorium, WALL ST. J., Nov. 15, 2013, http://online.ws.com/news/articles/SB10001424052702303789604579199811796359826;Read MoreCommunity and Population Health Task I4979 Words   |  20 Pagesmonitoring pollutant levels, issuing permits, and constructing models of air pollutant levels in the Denver area (Department of Environmental Health, 2014a). In February 2014 Colorado became the first state to regulate methane emissions from hydraulic fracking (Kroh, 2014). This new regulation will directly increase water quality and decrease smog in the Denver area. The Department of Environmental Health (DEH) is responsible for monitoring the quality of water in Denver’s lakes and streams. The DEH collects

Hospital Trends in The Current Economic Environment Essay

Hospital Trends 1. How is the current economic environment affecting hospitals? According to the article, â€Å"The Economic Downturn and Its Impact on Hospitals†, the current economic environment is affecting hospitals and other heath care facilities in a number of ways. The most common issue relates to inability of the hospitals to obtain and secure relevant financing that enables health institutions to meet their daily obligations. Since most payments in hospitals lags behind the amount expected to deliver health care, most of the times hospitals are forced to borrow funds from financial institutions to meet their operating expenses. With this issue of economic downturn, borrowing funds from financial institutions has become very†¦show more content†¦Hospitals need to analyze their services and health programs, and only engage in activities which are beneficial and cost effective to them, taking into consideration the wellbeing of the patients (TREADWATCH, 2009). The current Hospi tals goals should be changed to focus on making health care affordable to all, by categorically making their patients to adopt government insurance programs, which are more stable and with fewer risks of problems associated with economic down turn. Hospitals should also adopt effective management systems, which would make them more competent in managing their debts and cash. The health care institutions should establish other money generating programs in order to reduce their over dependence on loans from banks. Health is something important for a given nation, and the entire globe for that matter. This means that it would be necessary that a proper method for financing healthcare be formulated towards ensuring there is a proper health structure. This is the main reason why innovative finance comes in as a very good approach towards effective health .Innovative financing is a modern approach that has been noted to come with a number of possibilities towards increasing overall econom ic development while bringing in positive possibilities which can effectively accelerate all the measures and processes put in place towards poverty reduction (Primer, 2007). 3. What similarities andShow MoreRelatedHealthcare Industry in the United States1315 Words   |  5 Pagesthe healthcare industry in United States of America will go through three stages of evolution. Already through the first stage, this industry will restructure within an atmosphere marked by ambiguity in the regulatory environment, sustained scientific advancement, global economics and digital transformation. By 2030, the health care industry will be drastically different from today and ever more complexly tied to the global health market and its population. With the evolving changes in the industryRead MoreThe Patient Protection And Affordable Care Act ( Aca )1617 Words   |  7 Pagesimplemented legislation know as the Patient Protection and Affordable Care Act (ACA). The following is an overview of external factors that will have potential impact for the Mayo Clinic in the coming years. SWOT for Mayo Clinic External Environment Analysis Government influences. The Patient Protection and Affordable Care Act (ACA) is a comprehensive approach to tackle some the challenges in the healthcare industry. The first issue addressed by the legislation was the disparity in accessRead MoreThe Current Marketing Trends, Healthcare And Clinical Health Act1323 Words   |  6 PagesTTechnology trends. Looking at the current marketing trends, healthcare is advancing day-by-day. Therefore, it is important for healthcare organizations to incorporate certain technologies, such as telemedicine that can provide effective healthcare services to even its physically distant patients, which will serve as a useful asset to a rural hospital like PMH (Campbell, 2001). Another great benefit of this technology will be how it can help in overcoming the physician shortage situation at PMH,Read MoreAft2 Task 4 Essay1733 Words   |  7 PagesA1. Status Preparing for The Joint Commission, Nightingale Community Hospital reviews areas of compliance and non-compliance. A periodic performance review, which is a self-evaluation, is utilized by Nightingale Community Hospital, to prepare for The Joint Commission. The Joint Commission has eighteen accreditation requirements. (Commission, 2013) The periodic performance review found the hospital to be compliant and non- compliant in the following areas: Compliant: Emergency Management Read MoreThe Financial Health Of The Company1044 Words   |  5 PagesMedicare. Meyer thus suggested the need for investigation. Additionally, HMA was also charged with inappropriate admission in its hospitals as well as ordering patients to undergo unnecessary tests. In 2014, HMA was accused of attempting to inflate bills by inflating its payments from Medicare and Medicaid (De La Merced, 2013; Kelly Humer, 2013). Furthermore, the hospital tried to increase its revenues by admitting patients even when it was not necessary. In an attempt to further increase its revenuesRead MoreThe Competency Of Knowledge Of The Healthcare Environment995 Words   |  4 PagesThe competency of knowledge of the healthcare environment is composed of four general themes. These themes include customers, staff, systems and community/environment. Of these four domains I believe I have a lot of room to grow in the community/environment. There are many steps I can take increase my knowledge in this area. The domain of community/environment can be impacted in many ways. As our text describes, changes in the nature of the population, the local economy, and awareness and attitudesRead MoreThe For The Patient Protection And Affordable Care Act1187 Words   |  5 Pageshigh quality services and ensuring safety. Although today’s APNs still must accomplish this primary clinical functions, they are also accountable for attaining positive financial outcomes (Finkler et al, 2013; Stichler, 2008). The implication of economics for APNs is the need to be familiar with the basic accounting principles and be able to articulate the language of finance so APNs can effectively advocate for the scarce resources they need to the chief financial officers (CFOs) with the aim ofRead MoreThe Royal London Hospital Nhs1278 Words   |  6 Pagesreport is about The Royal London Hospital which is carried out by NHS trust. The vision of the Royal London hospital is created and the objectives are been f ramed. There is proper medical improvement. This report creates new updated vision of the organization which helps in identifying the objectives. Thus various factors are evaluated and communication is made clear with the stakeholders in the organization. There have been meetings taken up by the royal London hospital so as to meet up its aims andRead MoreHistory of the U.S. Health Care Delivery System1169 Words   |  5 PagesIntroduction: In order to understand current health delivery services changes and formulate predictions, one must thoroughly comprehend the three developmental eras of the health care system. The evolution of our current health care system began in 1850, and has metamorphosed in three time periods, 1850 to 1900, 1900 to World War II (WW II), and WW II to 2009. Significant distinct and overlapping trends in disease prevalence, availability of health care resources, social organizations, and theRead MoreGlobal Population And Climate Change1536 Words   |  7 Pagesabout a variety of global population trends and how climate change has had a notable effect on the planet. There are currently four main trends that have emerged from the current climate and population changes: migration, declining fertility rates, aging and declining population and urbanization (MacPhail). Migration is the movement of people from one place to another and it happens for a variety of reasons (â€Å"Migration Trends†). People migrate because of economic opportunities such as higher wages

Modern youth subculture free essay sample

There are a valuable dominant , or core of culture, and next to it a number of subcultures formations in any culture. The question arises(is) what the subculture is. It was assumed that subculture is a subsystem of the whole system of culture. But, there is no any well-established system of views on the appearance of subcultures nowadays. Every science interprets this concept and describes it room the point of their subject and methodology.Subculture usually a special case of culture in general. It is always different with its some locales and reticence to a certain extent, in varying degrees, is loyal to the value system of the dominant culture, although there are exceptions . Youth subculture is a special case Of manifestations(display) Of subculture in general. Epithet of youth immediately defines a cultural niche that is occupied by people united on the principle of age. In this case, the age an important demographic characteristics. We will write a custom essay sample on Modern youth subculture or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The special psychology of age in ultra is undeniably important, as it seriously influences the mentality and spirituality.Youth subculture is born and exists in connection with the specific needs of young people to socialize and at the same time to assert themselves actively. It was assumed(considered) that young people in the life of those rules and regulations, which were professed by their ancestors. Youth often characterized categorical judgments, perfectionism, rejection councils, their subordination existing burdens models of social development, they are characterized by dynamism, openness to the world, eighteen emotionality, romantic aspirations, etc..At the heart of youth subcultures there is a special way of relating to the world with its system of spiritual values. Youth subculture is a special way of life that is divided mainly living them directly or sympathizers. Youth subculture it is nothing but a form of self-expression of young people, expression of their goals in life: to change the world, their life, refuse from the social canons, approve alternative life attitude in relation to the(with) pre-existing etc . Public opinions about the different kinds of youth subcultures are different.Some people imagine it as any unusual behaviors of youth social deviation, imitating the West, idleness, and therefore subject to elimination. Others believe that young people are trying (let in somewhat exotic way) somehow to express himself, his attitude and say something about himself to society- -? and because it borrows from its Western counterparts Having considered the youth subculture hip-hop in Russia and Gyrations, we can conclude that almost everything about this subculture, including its language is really borrowed from subcultures hip-hopwhich is originated LISA.

I, Robot Review Essay Example

I, Robot Review Paper Essay on I, Robot After reading this collection of short stories in early childhood name Isaac Asimov will forever be associated with the robots, though to be precise the word robot came up with is not it and Karel Capek. In order to break all the laws of the robot is sufficient to break the first law, since the second and the third is based on the first. Based on Asimovs three laws of built dozens of stories. Although based suzhetny lines are robots and spaceships, the masters works are devoted primarily to people. They as well as the concept of good and evil has not changed in the world of the future Based on them was written the first story, Robbie and follow that vposledstii and made danyj collection.. The author raises many questions concerning the functioning of the robot, which can be a problem when the robot insubordination, contrary to logic, Laws of Robotics, the relationship between man and robot. Opening a book for the first time are now sophisticated reader spoiled the flow of modern fantasy, can treat it with skepticism, they say uninteresting. The authors writing style is leisurely, focused on thorough thoughtful reading. This requires not entertaining reading! And the cycle of base of writing the author of a much later only confirms this. We will write a custom essay sample on I, Robot Review specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on I, Robot Review specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on I, Robot Review specifically for you FOR ONLY $16.38 $13.9/page Hire Writer An amazing insight, foresight writer admires .. I used to when I watch on TV or read the news in the world of technology, weapons, new items and rocket catch myself thought that something like this has been, Ill know it! Here is a quote from the story, Robbie writing in 1940 (approx. a future legend of the world of science fiction then was only 20 years old.) of course, it did not come. It all happened in 1998. By 2002, we invented the mobile robot speaker, and nonverbal model obsolete. But the modern news -. The staff of the Japanese city of Ikeda Hospital enrolled the first talking robots (28 June 2004 g.) in the short story Liar (1941). The robot has the ability to read peoples minds So, in the United States it has long been under development kibershlema who can read minds in the longer term on the basis of such technologies is planned to create a weapon control systems using the power of thought. So with the modern development of cybernetics and robotics Asimovs writings remain relevant despite having run decades. For many years, many thousands of science fiction writing thousands of authors. But where are they now? And the book Isaac Azimava both fantastic and scientific-journalistic interesting and informative. Everyone, regardless of whether 15 years of thy or 45 will find that reading for fun and for the development of horizons This has striking merit of the author -. His works do not become obsolete And now! 2009 open the volume Worlds of Isaac Asimov and before your eyes limitless galaxy, the death and the collapse of the great empires, travel to distant stars, worlds I, Robot Review Essay Example I, Robot Review Paper Essay on I, Robot 1. A robot may not injure a human being or, through inaction, allow a human being to come to harm. 2. A robot must obey all orders, which gives a person, except where such orders conflict with the First Law. 3. A robot must protect its own security, to the extent that it does not conflict with the First or Second Law. If Karel Capek gave the name of artificial life (?), The Isaac Asimov formed an ethical code programmed modus vivendi expressed in three laws of robotics. And, as a diligent researcher, I started immediately to test the strength of the laws. The stories included in the collection I, Robot, were written at different times, but eventually merged into one book. We will write a custom essay sample on I, Robot Review specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on I, Robot Review specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on I, Robot Review specifically for you FOR ONLY $16.38 $13.9/page Hire Writer So, the company U.S. Robots, a monopoly in the robotics market, is 75 years old. Unnamed journalist meets with Susan Calvin the world famous robopsihologom, member of the Board of U.S. Robots. She also turns 75. Almost all her life associated with robots, in her eyes, the progress of mankind has changed its course and lunged forward. The journalist asks her to tell a few stories that could serve as material for an interesting article. First she recalls Robbie (RB) nanny robot Conversations with Dr. Calvin, as you know is the relationship between pauzozapolnitelyami stories that help to combine them all into one world. Just a collection of 9 short stories: Robbie, Runaround, Logic, How to catch a rabbit, ! Liar, Little Lost Robot, Out of position, Clues, Solubility of contradiction. Unfortunately, in my edition no Soluble contradiction and way out All of these stories -. Great thought experiments on the three laws of robotics. Each of them an unusual situation in which the robot should be clearly laid down in his logic, and therefore, the situation becomes even more unusual A few stands out from this definition opens the collection of short stories, Robbie, which was written before the others. and which is more sentimental than the experimental. Robbie a robot nurse who loves to listen to stories. One of the first models. Tall metal giant, who did not even speak, but who doted in their ward eight Gloria, performing all her whims with one condition to be a fairy tale. (His favorite, by the way, Cinderella). Glorias mother, more and more worried in case the relationship of this kind: Gloria does not play with other children, is not asking for a gift to the animals, and neighbors once unkindly glance at his mother Gloria. Horror. Horror. Horror. It is necessary to change something, because what the neighbors think. Gloria mother hard podolbiv brains husband, Robbie achieves sending back to the factory. The little girl can not forget the robot and starts to put every effort to find him. Touching and cute story, dedicated, on the one hand, the deep affect ion to their children toys, childrens imagination and the power of love the ability to breathe life into what life there is on adult opinion. On the other hand a great story on the theme of xenophobia. What some do not accept outsiders, clear external differences that do not understand, and as a consequence suffer a nervous fear. And a child who is in the childrens mediocrity has no general any idiotic analytical reasoning. Ah, it seems that children civilization would be so beautiful. But, unfortunately, they become adults The following three stories -. Runaround, Logic, How to catch a rabbit I liked the most. The combined figures of two robotic testers Gregory Powell and Mike Donovan. Their iznervnichaschihsya and diseases that fill up the space station, the asteroid, then on another planet in the company last Modolo robots. They need to check that everything is going as it should. And all is not as it should every time. That will send a robot to get fuel for energy batteries, the drunk in the insole. The other will be deeply religious, proving logical way that generator Lord, who created all things for His service. And Adam called the Prophet himself. Then the robot will develop a kind of nervous tic. In general, these three stories robots behave like Bender from Futurama, which hitched to his forehead magnetic badge. And all this without leaving the scope of logic contained in them. Brilliant stories that make joyful laugh out loud. Liar! a wonderful story about a robot that is able to read thoughts. In his trap, which turned out to snare people living emotions and not reason, were the leaders of U.S.Robots. It seemed to me the most amusing dissection of the first law Little Lost Robot. Fuck you So I did not see you anymore. Say a robot then give very strict orders. Thats gone very expensive and right robot for hysteria of physics. However, where it is approximately known. Came cargo 62 robot. Now they are 63. So how do you find the most? Not a needle in a haystack, but the search for identity, where identity can not be determined. The story Evidence I also liked very much. Byerly young lawyer involved in the local elections. His opponents will do anything to denigrate a competitor. For example, said that he a robot. (A robot, by the way, may not be used on Earth.) The very same Byerly clearly in no hurry to prove or disprove the accusations unequivocally. Still a PR. Elections are not of national importance, and after them the whole world. As rightly says Dr. Calvin involved in the investigation, Beyrle a robot, or a very good man. After all, in principle, the laws of robotics are no different from the basis of any ethical system of people. First of all, deeply decent robots Calvin answer to the question about the difference between humans and artificial form I love the story as a form.. And while reading this collection, again praised it highly. Asimov, and gave us the building blocks of his works does not paint thoroughly (or more fully), the world of the near future (event stories occur within the first century of the 21st century). But thanks to them, we can fantasize, to conjecture, to finish building, to reflect on the overall picture of the world. Why robots forbidden to work in the world? How should the impact on the psychology of colonization of new planets? Robot: life or not? Emotions or mind? In general, strongly recommend this collection. P.S. However, especially anachronistic touches. So the scientists of the future, creating robots are logorifmicheskimi rulers build robots on the tube circuits, and strikes the imagination must compute, which are now under the power of the calculators school Read the authors collection of short stories by Isaac Asimov:.

Helium Facts (Atomic Number 2 or He)

Helium Facts (Atomic Number 2 or He) Helium is atomic number 2 on the periodic table, with the element symbol He. It is a colorless, flavorless gas, best known for its use in filling floating balloons. Here is a collection of facts about this lightweight, interesting element: Helium Element Facts Helium Atomic Number: 2 Helium Symbol: He Helium Atomic Weight: 4.002602(2) Helium Discovery: Janssen, 1868, some sources say Sir William Ramsey, Nils Langet, P.T. Cleve 1895 Helium Electron Configuration: 1s2 Word Origin: Greek: helios, sun. Helium was first detected as a new spectral line during a solar eclipse, so it is named for the Greek Titan of the Sun. Isotopes: 9 isotopes of helium are known. Only two isotopes are stable: helium-3 and helium-4. While the isotopic abundance of helium varies depending on geographical location and source, 4He accounts for nearly all of the natural helium. Properties: Helium is a very light, inert, colorless gas. Helium has the lowest melting point of any element. It is the only liquid that cannot be solidified by lowering the temperature. It remains liquid down to absolute zero at ordinary pressures, but can be solidified by increasing the pressure. The specific heat of helium gas is unusually high. The density of helium vapor at the normal boiling point is also very high, with the vapor expanding greatly when heated to room temperature. Although helium normally has a valence of zero, it has a weak tendency to combine with certain other elements. Uses: Helium is widely used in cryogenic research because its boiling point is near absolute zero. It is used in the study of superconductivity, as an inert gas shield for arc welding, as a protective gas in growing silicon and germanium crystals and producing titanium and zirconium, for pressuring liquid fuel rockets, for use in magnetic resonance imaging (MRI), as a cooling medium for nuclear reactors, and as a gas for supersonic wind tunnels. A mixture of helium and oxygen is used as an artificial atmosphere for divers and others working under pressure. Helium is used for filling balloons and blimps. Sources: Except for hydrogen, helium is the most abundant element in the universe. It is an important component in the proton-proton reaction and the carbon cycle, which account for the energy of the sun and stars. Helium is extracted from natural gas. In fact, all natural gas contains at least trace quantities of helium. The fusion of hydrogen into helium is the sources of a hydrogen bombs energy. Helium is a disintegration product of radioactive substances, so it is found in ores of uranium, radium, and other elements. Most of Earths helium dates back to the planets formation, although a small amount falls to Earth within cosmic dust and some is produced via beta decay of tritium. Health Effects: Helium serves no biological function. Trace amounts of the element are found in human blood. While helium is considered to be non-toxic, it displaces oxygen so inhaling it can lead to hypoxia or asphyxiation. Fatalities from inhaling helium are rare. Liquid helium is a cryogenic liquid, so risks include frostbite from exposure and explosion from expansion if the liquid is stored in a sealed container. The mixture of helium and oxygen (heliox) can cause high-pressure nervous syndrome, however the addition of nitrogen can remedy the issue. Compounds: Because a helium atom has a valence of zero, it has extremely low chemical reactivity. However, unstable compounds called excimers can be formed when electricity is applied to the gas. HeH is stable in its ground state, but it is the strongest known Bronsted acid, capable of protonating any species it encounters. Van der Waals compounds form with cryogenic helium gas, such as LiHe. Element Classification: Noble Gas or Inert Gas Usual Phase: gas Density (g/cc): 0.1786 g/L (0 Â °C, 101.325 kPa) Liquid Density (g/cc): 0.125 g/mL (at its boiling point) Melting Point (Â °K): 0.95 Boiling Point (Â °K): 4.216 Critical Point: 5.19 K, 0.227 MPa Atomic Volume (cc/mol): 31.8 Ionic Radius: 93 Specific Heat (20Â °C J/g mol): 5.188 Heat of Fusion: 0.0138 kJ/mol Evaporation Heat (kJ/mol): 0.08 First Ionizing Energy (kJ/mol): 2361.3 Lattice Structure: Hexagonal Lattice Constant (Ã…): 3.570 Lattice C/A Ratio: 1.633 Crystal Structure: close-packed hexagonal Magnetic Ordering: diamagnetic CAS registry number: 7440-59-7 Quiz: Ready to test your helium facts knowledge? Take the Helium Facts Quiz. References Meija, J.; et al. (2016). Atomic weights of the elements 2013 (IUPAC Technical Report). Pure and Applied Chemistry. 88 (3): 265–91. doi:10.1515/pac-2015-0305Shuen-Chen Hwang, Robert D. Lein, Daniel A. Morgan (2005). Noble Gases. Kirk Othmer Encyclopedia of Chemical Technology. Wiley. pp. 343–383. doi:10.1002/0471238961.0701190508230114.a01.Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4. Return to the Periodic Table

Biogeochemical Cycles Research Paper Example | Topics and Well Written Essays - 250 words

Biogeochemical Cycles - Research Paper Example le covers different regions from ocean to sky to earth and it covers all the Earth systems such as atmosphere, hydrosphere, lithosphere, and biosphere. â€Å"The movement of water in the hydrological cycle extends through the four parts of the total Earth system—atmosphere, hydrosphere, lithosphere, and biosphere—and strongly depends on the local peculiarities of these systems.† (Kuchment, 2004, p 2). The importance of the hydrological cycle to life’s processes is generally recognized as all living organisms, including humans, depend on the hydrologic cycle for water and different activities of humans such as drinking, respiration, perspiration, and elimination of wastes form part of this cycle. Significantly, human activities have a great impact on the functionality of the hydrological cycle and those activities that change the land cover of river basins and are aimed at regulating the water fluxes in nature can greatly change the hydrological cycle of th e separate river basins, and even of large regions. â€Å"Due to human activities, the natural hydrological cycle of most river basins is becoming more and more transformed and regimented†¦ The major effects of reservoir construction on the hydrological cycle (excepting runoff control) are an increase of evaporation and a rise of groundwater table.† (Kuchment, 2004, p 30). Similarly, the impact of irrigation on the hydrological cycle is especially informative in the arid regions, although it is also substantial in regions with moderate climate where irrigation is of supplementary character. In conclusion, human activities have a great impact on the functionality of the hydrological cycle. Kuchment, Lev S. (2004). â€Å"The Hydrological Cycle and Human Impact on it.† Water Resources Management. Encyclopedia of Life Support Systems. p 2. Retrieved 07 October, 2009, from

Reading assessment report Essay Example | Topics and Well Written Essays - 1250 words

Reading assessment report - Essay Example Since the child often had trouble in making the changeover from recitation to exposition, I felt that it was significant to take account of expository material at all levels. QRI Interpretations Word recognition and isolation on the QRI the child scored independent on the trial one of word list then reached frustration on third of the level (responding repeatedly to four terms, hesitating on seven words and sounding out three,) substituted actual words for eight out of fifteen terms when he misread. On the other four occasions, he created unreliable terms. Most of these terms followed a related letter resonance pattern. It should be taken into account that of the twelve terms that he read inaccurately, nine had been trained as view words, and two have been skilled as sound out terms. One term has not been trained yet. Expression of word recognition, during the supervision of the QRI 4reading passages, the reader was incapable to recognize terms in the passage at an instructional leve l or self-governing. Answering questions immediately after reading was poor as he answered two questions out of the seven asked and he was unable to locate "back" the answers in the passage for the questions he got wrong. This implied that he had poor comprehension of the passage. On the last levels, the child reached frustration level. While reading, the reader tried to sound out some terms, and guessed at others, using image clue for assistance. The child had been assessed with expository passages. He scored alone on the first Pre-trial of one passage for understanding. On the pre-trial two and three, the child did not gain instructional for comprehension. Although he had some requirements when it came to reading the terms, the child was still not able to keep excellent perceptive of the passage. He scored 15% below average as overall. The child was more happy than when he got the word correctly by re-reading the again in the passage. Miscue analyze Instructional level is pre-tria l two for both comprehension and decoding. The child comparative strengths are his background understanding and ability to use image clues for support. The child mostly wanted to skim over the passage without much attention, and he scored 40 % poorly in the percentage which was below average in the entire test conducted. Passages with symbols and pictures to maintain reading Re-train with consideration of background clues .help out in employing Clarify / Monitor tactic during reading" resources written at this stage should be selected for reading and content-area instruction. This assignment assumes that the instructor will initiate terms and concepts that are possible to be strange to the child. He gives the classification and significance of these concepts and provides suitable background knowledge needed for accepting the material. Apparently, when learners are at the instructional level, the trainer should not say, â€Å"study topic five, and we will have a testing coming days. †A learner’s instructional stage, once dogged, can be compared to the student’s sequential grade ranging. Is it lower to the level of equipment that is suitable for that grade