Essays on Mercury

The Japan Aerospace Exploration Agency (JAXA) is relatively new space agency compared to other international space agencies such as National Aeronautics and Space Administration (NASA) and European Space Agency (ESA). However, it has launched numerous successful orbiter and satellites over the years including the Hayabusa, Epsilon and Artemis. JAXA plans to recreate successful missions of leading space agencies such as NASA and ESA in order to further develop human explorations in the solar system in the future. Recreating successful space missions is an approach of JAXA in order to develop their space programs. One of the main upcoming missions ...

INTRODUCTION

Economical and industrial development are two of the most important elements on the evolutional way for any country and nationality. However, it often happens so that people discover something new and hurl themselves into using it before making throughout estimations of potential risks and hazards. This is especially common if such newly discovered entity (an invention, or mineral, or a way to dig out minerals – this could be anything) is capable of making large sums of money: then there is no particular doubt of this entity becoming incredibly popular and exploited to the extent of being overused. To top ...

Introduction

Certain factors such as the need to conserve environmental purity as well as the increasing pressure on fossil fuels have prompted the increased use of alternative sources of fuel, renewable energy to be precise. Renewable energy has been cited as not only cheap to exploit but also the most environmentally friendly sources of energy due to the reduced instances of environmental pollution associated with such energy (Pasqualetti 204). Solar energy, for instance, has been largely exploited globally due to its free availability, especially along the tropics where it is abundant throughout the year. Despite the increased preference of solar ...

There has been increasing awareness of the role of waste in the production of greenhouse gas emissions and its impacts on climate change. Diminishing natural resources has led to the recognition that what is discarded as waste has the potential to be reused as resources. Governmental legislation on prohibiting toxic materials and prevention and control of the volume of waste has helped in decreasing adverse environmental effects. There is a growing public awareness about waste prevention and its beneficial effects. The society has to replace the linear model of extract-produce-consume-dispose to closed Loop's approach of resource recovery and waste ...

Q1. A 200mm diameter pipeline divides into two smaller pipelines, one being 100mm in diameter and the other being 150mm in diameter. If the velocity in the 100mm pipe is 0.3m/s and that in the 150mm is 0.6m/s, calculate the flowrate in litres/s and the velocity in m/s in the 200mm pipe. [ 13 l/s, 0.413m/s] Solution: Flow Rate = (pi/4)(0.1)2(0.3) + (pi/4)(0.15)2(0.6) = 0.01296 cubicmeters/sec = 12.96 l/sec. (ans.). Velocity = (Flow Rate)/(Area) = [0.01296]/[(pi/4)(0.1)2] = 0.4125 m/s. Q2. If the specific volume of water is 0.001251 m3 /kg. calculate:

The mass and weight ...

Final Test

Explain in general terms the process of DNA replication. The replication of the DNA starts when the double helix unwinds. Each of the two strands serves as the template using which the new DNA double helix strands are formed. The different bases on each of the two strands are then matched in order to form a new set of two strands. Each of the new strands partners with the parent strand to form a double helix (Roth 26).

Prophase – Chromatids are joined at the centromere. Spindle formation occurs. The separation of centrioles occurs in animal cells (Tobin and Jennie ...

A Proper understanding of the pathophysiology of diseases and conditions is essential in their treatment as well as management. Every disease has a way of affecting the normal functioning of the body. Some disorders attack the whole body while others affect specific organs. Therefore, it is crucial to study the pathophysiology of diseases. It is also essential to understand the relationship between related diseases. This helps in understanding the interactions between the diseases. This paper is set to examine the pathophysiology of pneumonia, hypoxemia, as well as thyroid cancer. Additionally, the paper analyses the relationship between these diseases.

Pathophysiology of Pneumonia

Pneumonia ...

MGMT 581

Corporate Social Responsibility & Sustainability Executive summary: This paper is a descriptive analysis of Corporate social responsibility which has long been a significant part of organizational activities at Oracle. Over a span of time, company has achieved great heights owing to its internal ethical standards such as compliance, teamwork, integrity and corporate governance that have contributed greatly towards establishing a good relationship with primary stakeholders and third party clients. The paper also represents a comprehensive report on how the management at Oracle has taken every step towards maintaining quality by regular training and education. Apart from this, the paper also ...

(Q1.) Over the years, Oracle has continued to demonstrate high levels of ethical standards in dealing with its employees, partners, creditors, suppliers, and other pertinent stakeholders. As such, this is one of the factors that have steered the company to the heights of the Fortune 500 (in 2014, the company was ranked 82). Over the years, the company’s board of directors has continued to develop corporate governance, ethical standards that have made the firm responsible to its primary stakeholders. Since the company operates globally, its executive managers in conjunction with the branch managers have developed laws and ethical ...

Ultraviolet light (UV light) is a type of electromagnetic radiation that is located between visible light and X-rays in the electromagnetic spectrum. It is invisible to the human eye, and has a frequency greater than that of visible light but lesser than X-rays. It has a wavelength ranging from about 10 nm to 400 nm (ISO, 2007). UV light is a part of the radiation that comes from the sun. It can also be produced artificially by electric arcs, black lights, tanning lamps and mercury vapor lamps. The name Ultraviolet literally translates to “beyond violet”, as it has a ...

Introduction

Much recent publicity surrounding climate change has focused mostly on global warming, but little direct correlation has been given in the media with regard to the impacts that environmental pollution has on climate change, and also on human health. Although studies of pollution and the environment have been carried out since the time of the Industrial Revolution, it only relatively recently that attempts to measure environmental on a global scale have been undertaken. Environmental pollution is a major cause of global concern, not only for the effects that it has on the physical environments, but also for its potential ...

The Grass Dancer, a book written by Susan Power, who descends from the Native American Sioux people, fascinates the reader with the elaborateness of the plot, complex kinship and thematic saturation. Power weaves a complex story of life and relationships of a young Sioux Harley Wind Soldier living in a reservation in Dakota and struggling to regain his identity. However, the far from being one-sided or hackneyed: the author deploys various techniques to portray the story of the entire Sioux Nation through the array of interrelated characters. However, the main peculiarity of the book lies in Power’s careful ...

Peru is known to be rich in gold and thus, houses a lot of gold mines. Based on the fact that a good number of the population comprises of the poor, the old methods are used to extract gold. Admittedly, mercury binds gold in the mud at the mines. Precisely, 0.33 gold ring is surrounded by over 20 tons of toxic wastes (Brilliant Earth, n.d). It thus follows that there are a lot of health hazards accruing from gold mining. Focusing on Peruvinian Mine Yanacocha, which forms the poorest part in Peru (Peru: Mercury poisoning, n.d), it is significant ...

Use of AA batteries

AA batteries are sizable and portable devices. They consist of electrochemical cells that are either disposable or rechargeable. Proper use of the dry cell battery is recommended. The type and size of the battery matter when one is choosing the kind to use. The batteries are used to generate power for home appliances. For example, radios, cassette players, toys, and flashlights. The alkaline batteries also referred to as wet cell batteries contain electrolyte liquid that is used to power motorcycles, boats, motor automobiles. During compulsion chemicals electrolyte react with the heavy metals generate power. Ideally, the AA batteries have ...

Electronic waste

Electronic waste is a general term used to refer to electronic products nearing their end of life cycle. These products comprise a wide array of devices. They include computers, laptops, television sets, VCR, stereos, fax machine and much more. However, there is some confusion regarding the proper definition of electronic waste. According to some people, devices such as old fridges, electric cookers, and microwaves do not comprise e-waste whereas, some consider these appliances as electronic wastes. When the devices and tools get discarded, individual components within them cause harm to both human health and the environment. These components include ...

Introduction

The experiment was conducted to establish the association between head loss as a result of fluid friction and the flow rate of water. Turbulent and laminar flow within the pipe were also investigated. Fluid Friction Equipment containing three bore pipes was used to take the data of head loss at dissimilar velocities. Different readings on volume, time, flow rate, pipe diameter, and velocity and head loss of both mercury and water were collected. The data collected were used to investigate the association between head loss due to friction and the flow rate of water through bore pipes. An estimate ...

Material Extraction of Dry Battery AA:

A typical alkaline dry AA cell comprises a cylindrical external case, cathode, anode, and electrolyte and separators. The external casing is made from nickel-plated steel and is lined with a separator to divide the anode and cathode. The separator is made of either a porous synthetic material or layered paper. On one end, the battery canister is sealed with an epoxy or asphalt sealant underlying a steel plate and at the other end with a brass rod driven through the cylinder. The rod is welded to a metallic end cap and passed via an outer plastic seal. Inside the ...

Materials Extraction

These batteries consist of heavy metals such as cadmium, mercury, zinc, and nickel, which are environmental pollutants. Hence recycling them instead of incinerating them together with household waste saves our environment. These valuable metals are recovered during the process of recycling and consequently, save energy by minimizing the use of raw materials. Several materials are extracted from the used batteries and are used to manufacture new ones. Manganese dioxide, which is normally used to catalyze the reaction that produces oxygen from hydrogen peroxide, is contained in the zinc carbon cell. Dry batteries also contain metallic zinc, which is usually ...

Executive Summary

The results of the recent studies among U.S. pregnant women prove that fish consumption during pregnancy benefits the cognition of the offspring in infancy but at the same time, high levels of mercury that fish contain have adverse effects on the cognition of little children. So, it is recommended to pregnant women to look for the fish species with a low level of mercury. The issue whether pregnant women harm their babies or on the contrary benefit the child’s brain development while consuming fish is ambiguous. There has been a great quantity of researchers who have been studying ...

A landslide is when the earth gives way to the downward movement of rocks or soil down a slope because of the inability of the earth to hold off gravity. Landslides are caused by eruptions of the volcano, weathering or soil erosion human beings such as mining and building roads. Landslides can be prevented by planting trees and checking the drainage system of water at home. La Conchita has experienced soil creep which is the slowest sliding of the soil and which is a type of landslide. Rivers who flood and the result is a flooding environment. Rivers who ...

Plate with king hunting rams

This plate with accession number 34.33, was made in Iran, possibly in the Qazvin area. The medium employed during its development included mercury, silver, niello and inlay. It describes the period Sasanian rulers and their power and superiority during the fifth and the mid of the sixth century. During the term of the reign of Shapur II, approximately A.D. 310-379, the ruler being a hunter was a symbol that was standard and recognized as a high image (Kleiner 23). The plate got made out of silver with a theme that symbolized the power and prowess that got associated with ...

Problem Statement:

The case is about the somber aftermath that is encountered by the Newmont Mining Corporation after the worst mercury spill, which jeopardized their ability to conduct business in Peru. The incident is said to be the worst mercury spill in the global history when one of Newmont’s truck stumbled out more than 150 kilograms of toxic mercury inside Peru from the Yanacocha mine. This caused severe threat to the lives of hundreds of people and drastically devastated the native communities. The consequent audit to the incident also revealed that the operations of Newmont Mining Corporation in Peru neither ...

Many centuries ago, a man witnessed an apple fall from a tree and had a scientific revelation about the way that the objects on the earth worked. This was no ordinary man: this was Isaac Newton, and this incident would lead him to formulate the law of gravity. There are many variations and controversies about the apple story, including a conspiracy that Newton himself made it up. Regardless of the origins of the story, this scenario has become the symbol of Isaac Newton’s life and person in science classes around the world. In addition to his theories of ...

Invented and patented by Thomas Edison in 1879, the incandescent bulb comprises of a wired filament placed inside a glass bulb (“The History”). When electricity is provided to the filament, it heats up thereby making the bulb glow and emit light (“Incandescent, LED”). The wired filament of the incandescent bulb was initially made using carbon obtained from a cotton thread that was uncoated. This filament gave the bulb a lifespan of just 14.5 hours. Later, the carbon filament was made using bamboo, which gave the bulb a longer lifespan of up to 1200 hours (“The History”). Much later, in ...

Introduction

The very title of this article may seem to some readers fantastic. Is there any evidence that alien beings exist? Can we prove that there is no clear scientific argument in favor of their life and activity? Such questions immediately arise among readers, of course, they are quite natural. And yet, I will try to show that the statement of the problem in our time of exclusively rapid scientific and technical progress is quite logic. Moreover, most recently the first steps towards the solution of this great problem facing mankind were taken. Basically, from the scientific point of view ...

Industrial pollution is a key contributor to a wide range of environmental issues that we face today. Both the structure and scale of today’s industrial production present serious ethical problems from an environmental perspective. The global scale of industrial production coupled with the large amounts of hazardous materials generated imposes substantial risks on the society and natural environment. Industrial companies are considered the prime cause of environmental degradation. This is because these firms exploit natural resources on a large scale and release highly toxic substances and wastes. Industrial pollution is, therefore, a critical ethical issue that needs to ...

A River Runs Through It is a novel written by Norman Maclean and it consists of three short stories. The point of the stories is to reveal the ultimate truth of life which is what I could relate to. River is a metaphor for life itself and all the things that occur to people on their life paths. This message is Maclean’s most prominent legacy to the world because the river is constantly flowing and so is the life. Fly fishing is a very important part of the story and it is more than a hobby because it ...

Nature has many aspects depending of the viewpoint of an individual. Different people have various opinions of nature, either in a scientific view, religious view or even cultural view. From the stars in the sky, the sun, the moon the landscape, the flora and fauna all have a deep meaning to various individuals or groups. The following is an analysis of three writings of writers who portrayed their views on nature. N. Scott Momaday through her article, “The Way to Rainy Mountain” explains the nature through her viewpoint while “The Solace of Open Spaces” by Gretel Ehrlich shows the ...

Introduction

Today the world is grappling with several ecological crisis; the effects of Global warming, the degradation of the Tropical Rainforests in South America, the environmental pollution of Oil Sands development in the Canadian Boreal, and the ecological threats from Nuclear accidents exemplified by the recent Fukushima incident. However, the least talked about is Waste management, particularly the problems of Electronic waste, often referred to as e-waste. Not only is the e-waste crisis a massive problem in most developed economies, but it is also quickly becoming a global crisis affecting even to a greater extent the least technologically advanced nations. ...

Introduction

There are environmental chemical processes which require light to react. These processes are called photochemical reactions. Photochemical reaction is commonly initiated due to the absorption of solar energy or light. When molecules absorb energy in the form of light, the atoms are converted in a transient excited state (Larson & Weber, 1994). This transition state or excited has completely different physical and chemical properties with the initial state of the molecule. The excited states also have more tendencies to react since they are considered stronger acids and stronger reductants that the initial state of the molecule. The excited state of ...

South of the polar Northwest Territories’ (NT) barren tundra lies the province of Alberta. The Canadian boreal forest provides expansive acres of natural habitat landscape for an array of plant and animal species. Ecologically, the Albertan forests and bogs arrest vast quantities of carbon-based pollutants, and their extensive hydrological network filters and purify millions of gallons of water. The boreal is also home to Aboriginal Communities which depend directly on the forest resources for their livelihoods (Regional Aquatics Monitoring Program [RAMP]). Nevertheless, this immaculate natural paradise is central to one of the today’s most contentious issues about the ‘ ...

1. Balance Diet and Physical Activity against Obesity and Hypertension The most essential way to prevent hypertension for those who are prone to obesity, and certainly for obese people - is the fight against excess weight. When we reduce the body mass by 1 kilogram - blood pressure decreases by 1 millimeter of mercury regardless of the original pressure level. There are only two ways to lose weight: a diet regime and an increased physical activity. But it is important to immediately warn against fasting that is very dangerous for health. It is possible only under the supervision of ...

Autism's false prophets

The Book Autism's False Prophets takes us through a series of myths and misconceptions surrounding autism with an intention to refute these claims and tell the absolute truth concerning Autism. According to this book, Doctors have in the past taken advantage of parents with autistic children, giving them hope of a cure, in an otherwise hopeless situation. In my opinion, this is a book that creates an awareness on autism, providing the basic facts, backed by evidence. The author, for example, maintains that nobody knows for sure at what point autism sets off in an infant because it is ...

Differences and Similarities of Basketball in Different Countries

This paper deals with the topic of differences and similarities of sport in different countries. The kind of sport, which is chosen for this paper, is basketball. Our main goal is to dwell upon differences and similarities of this kind of sport with regard to cultural, violence, and gender issues. In order to achieve this goal successfully, relevant sources of information were carefully analyzed. There is very interesting fact that some of the American basketball fans do not know about other basketball leagues except NBA. The basketball is considered to be one of the most popular sports nowadays. Actually, ...

Introduction

Mining activities can pose serious environmental and health implications. Although, these environmental and health hazards can be mitigated and effectively managed through sound engineering and environmental practices, these environmental and health issues associated with mining operations could not be totally eradicated. In general, there are three major players in the mining industry: the company, which include the employees and the stockholders; the regulatory bodies, which include the government and other national and international environmental organizations; and the community, which are not directly related to the mining industry, but is impacted by its operations. Each one of these stakeholders has ...

For the analysis I have chosen a song performed by the British rock band Queen. It was written in 1978 by the band’s lead singer Freddie Mercury. From the first tune the song attracts the listener with its energetic melody and lyrics. Also I like this song for its ability to cheer me up and fill with energy in any gloomy day. “Don’t Stop Me Now” has no hidden messages and meanings, everything is in its title. The speaker of the song is a man, who is in a cheerful mood, enjoys himself, has a great time ...

Abstract

Electronic waste is a growing global problem and as the demand and supply of electronic products grow, so does the–e- waste. Consumerism is on a steady rise, and people want new mobiles and computers every few months. That means more and more landfills and incinerators to take care of discarded and obsoleted electronics and potentially seeping of toxic substances like lead and mercury into groundwater. This can lead to serious health hazards and create toxic footprints. The essay looks at new developing technologies for the recycling of computers and creates a report on the basis of the quadruple ...

As seen in the excerpt above, the process of gold mining is associated with very adverse impacts on the natural environment. The impacts that the mining causes on the environment later affects living organisms and human beings. These results have made it necessary for the government, nongovernmental organizations and stakeholder in the mining industries to come together and mitigate the adverse effects caused by the process of gold mining. This paper discusses the role of the government and nongovernmental organizations in reducing the negative impacts that gold mining causes on the environment (Angell & Klassen, 1999). The government is the ...

Fabritius (1622-1654) was probably one of the most accomplished Dutch painters ever lived to create a replica following the Rembrandt style in painting. The painting is now in the custody of the LACMA Museum in Los Angeles where it has been valued as one of the valuable paintings from the 17th century. The theme of the painting is domestic farm life and several artistic devices were used in the painting. The cows and sheep for instance denote an overlapping of figures mainly to emphasize the narrow space of the surroundings; it is also possible that the artist had tried ...

The focus of the essay is to analyze “Mercury and Argus” by Carel Fabritius and how effectively it conveys the impression of deep space.Mercury and Argus, 1645-47, oil on canvas - Carel Fabritius. This painting “Mercury and Argus” appeared in a saleroom in Monaco, signed by Carel Fabritius, who was one of the most brilliant students of Rembrandt (Raux 103). The subtle coloring and blond tonalities may remind one of texturing done by Rembrandt, but it should not be mistaken for Rembrandt's work. The rustic genre scene of the painting portrays a mythological theme according to which Argus, a ...

Our solar system is one among many in the galaxy. It is made up of a superstar called the sun and all the planetary bodies revolving around the sun. The solar system is elliptical in shape and has nine planets revolving around the sun. Most of the planets have at least one moon revolving around them. Apart from the sun and the planets, the solar system is made up of asteroids, comets, rocky objects and space between the planets. There is a total of eight planets in the solar system; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. ...

Introduction

Good lighting is essential for any hotel, restaurant or facility used in the hospitality industry. The building designs need to allow for enough lighting for the natural light outside, and the designers need to have a good lighting system in the rooms from artificial lighting. Proper lighting enhances the beauty of a facility, room or surrounding. Designers ought to consider several elements of a good lighting system to ensure the facility remains attractive to the visitors. Among the aspects worth considering when a facility is adopting a lighting system include the color of the lights, luminaries, safety, and rendition. ...

Interpretation

Geothermal energy refers to the sustainable heat generated from beneath the earth, which composes of hot rock, hollow ground, and hot water. The extraction of this type of energy links to environmental hazards that threaten its widespread exploitation.

Analysis

Geothermal power plants cause atmospheric pollution. The extraction process in geothermal fluids relates to the emission of gases, water, and steam. It primarily entails the generation of power, which leads to the emission of non-condensable gases. A larger percentage of Carbon dioxide produced by external; sources come from geothermal activities. The power plants produce 1000-5000 times a lesser amount of Carbon ...

Abstract

This article discusses a variety of methods which are used in the day to day measurements that are taken in the field of engineering. This is important in familiarizing the engineers with the respective methods, which are unavoidable in the design of any component that requires utter precision. Therefore, this discussion promotes quality in engineering products by advocating for accuracy through precision in measurements.

Introduction

Measurement is the length, amount or size of something, as determined by taking the measure of the respective part or object (Diley & McConnell). It is enabled by the laws of physics which make certain materials ...

Paul begins with a powerful ridicule against people saying that people believed in magic as medicine when science was weak and religion strong, now they believe that medicine is magic at a time when religion is weak and science is strong (Offit, 2008, pg. 1). He maintains in his criticism of malicious people against his ideas. Many people have since used Autism as a basis for their campaigns against the vaccination procedures being done on children. Once a London researcher claimed that the famous MMR (Measles-Mumps-Rubella) vaccine was responsible for Autism. Following this assumption, some interested parents resolved that ...

Introduction

Over the years, climate change has become a cause of concern for governments over the world. With the increasing level of carbon footprint coming from households, several people have started taking actions in terms of their energy choices and make healthier choices that help in reducing the carbon footprint of their homes. Offsetting the unavoidable CO2 emissions is an immediate and practical way of taking ownership of individual contribution from each home towards climate change. Offsetting reveals that significant demand exists for both cleaner energy and opportunities for decreasing carbon footprint. Retrofitting is also very common among families to ...

Our solar system is a collection of some cosmic “neighbors” in space existing in a certain range. This extraordinary system of space bodies includes: a Sun, 8 planets with 140 moons, dwarf planets, comets, and asteroids. In the center of the Solar System, there is average in size and age, yellow star that people call it the Sun. Around it, for about five billion years, 8 planets and different celestial bodies have been circling in the eternal dance (Seasky.org. “The Solar System”). The size of the planets ranges from the small stone worlds to the giants consisting of ice ...

The Great Zimbabwe’s ancient plan is divided into two distinct parts: the hill complex and the valley complexes. The king preserved most of his treasures in the hill complex. Even though he resided in the Imba Huru, most of his time was spent in performing rituals on the hill. The hill complex is characterized with numerous enclosures. However, the smelting and the iron-keeping enclosures are considered as the most recognized in the structural mysteries of the Great Zimbabwe. The mystery of the valley complexes is that they were built using impressive blocks without making the use of modern ...

(Author, Department, University,

Corresponding Address and email)

Autism is a mental condition of abnormal absorption with the self. It is characterized by communication problems and relatively short attention span. Moreover, autistic patients are unable to treat others as people. Early diagnosis as well as treatment is important for young children with autism to reach their maximum potential, and the most important purpose of treatment is to enhance the overall ability of the autistic child to work normally. Autism is treated in various ways including behavioral training and management such as Applied Behavior Analysis (ABA), specialized therapies, and the use of medicines. Some alternative ...

Full title- A COMPARISON OF THE INHIBITORY EFFECTS OF METAL IONS

Enzymes are an essential part for the functioning of the human system. Most of the enzymes require binding of metal ions and other non-protein components for their appropriate functioning. Such non proteins, which facilitate the functioning of enzymes, are called cofactors. The cofactors can be an organic cofactor as Thymine Pyrophosphate (TPP), Flavin Adenine Dinucleotide (FAD), Nicotinamide Adenine dinucleotide (NAD); or inorganic cofactors like metal ions, Mg2+, Cu2+, Mn2+, Zn2+ and Iron-sulphur clusters. When the enzyme is bound to a cofactor, ready to carry out its function, it is known as a ‘Holoenzyme.' An enzyme without a ...

Sustainable Development is a way of the human development that is based on the principle that our planet is finite. Sustainable development is a mode of using natural resources in a way that meets the human needs and ensures the sustainability of natural systems (including the environment), so that these needs are met by present and future generations. There are four main circles of sustainability: Economics, Ecology, Culture and Politics.

Slide 2 – Water Pollution

One of the most important trends of Sustainable Development is the increasing need to protect the water bodies (lakes, rivers, groundwater and oceans). Water pollution has a negative influence on all the organisms and plants living in the water. Lately, ...

Section A: Learning Theories in the Big World

During the course of this semester, the process of gaining insightful information regarding the different learning theories allowed me to appreciate the different techniques used to facilitate learning. During the first part of the course, I was able to learning five learning theories which enable me to see how learners process insights and gain knowledge from them through the techniques proposed ...

Pearl Harbor is listed as one of the contaminated areas by the US environmental protection agency. It is also important to know that there is a naval site enacted in the Pearl Harbor region (epa.gov). Given the fact that Pearl Harbor is currently a military site, there are toxic materials that have to be transported in and out of the naval region. The EPA has listed some of the contamination and risks as soil, organic compounds, and petroleum hydrocarbons among other things. Give that some metals are solvents, there is a high risk skin infection in case of a direct contact with the ...

There are five stages in the information systems development process. These are initiating stage, planning, executing, monitoring and controlling, and completion stages. It is these stages that form the systems development life cycle (SDLC).It is the role of the systems analyst to act as the project manager of the information systems project. Throughout the system development lifecycle, it is the responsibility of the project manager to initiate, plan, execute and close down the systems development project. Management of the project is actually the most important phase of an information system development project. Efficient and effective management of the ...

Brightlight is constructing a boutique hotel with 200 guest rooms, and a lighting system that would best suit the rooms has to be decided. Given a choice between conventional incandescent bulbs and compact fluorescent bulbs (CFLs), CFLs are the best option as they have longer lives, consume less energy and are cost effective.

Incandescent bulbs contain a tungsten filament which, when heated to high temperature glows and emits light. But, most of the electricity is wasted as heat and only a part is converted into light. Whereas in CFLs, vaporized mercury emits ultraviolet radiation, this in turn excites fluorescent phosphor coating in the bulb ...

Olsen Erik D. in his scientific research article “Protecting food safety” looks at the situation regarding a safe food supply in the United States. Statically, about 47 million Americans suffer each year from various illnesses caused by food. Of them, almost 3,000 people die. Nearly a million of the population develops long-term chronic diseases, for example, arthritis, neural, and heart and vascular problems. Such illnesses are usually caused by pathogens that are present in the process of food production, preparation, etc. Scientists have also found out that sodium and artificial fats are the major cause of the population’s ...

Chapter Five

The Snow line which is situated in the disc next to the star like Sun called Hydrae tells astronomies and people on the formation of comets and planets, the origin of the solar system and the factors which determined the composition of comets and planets (Mackey, 2013).

Question Sixteen

Chapter 6 Question six Plate tectonic refers to the sideways movement of big portions of the earth’s crustal plates propelled by convectional currents when heat energy is transferred from the core to the crust, spreading the seafloor along the middle of oceanic ridges. The hot magma cools and forms a ...

Question 1

Jupiter was the first giant planet formed.

Question 2

According to the Nice theory where did the Kuiper belt objects and Oort cloud objects come from?

Kuiper belt objects come from the out edge of Solar System where huge spheres made of rock and ice that circle around Pluto’s orbit. The objects took their name from Gerard Kuiper who suggested that comets may come from the Kuiper belt. This group of planetoids is called Kuiper belt objects (KBO). The first KBO named “1991 QB1” was discovered in 1992. The plant Pluto also belongs to the group of KBO. Some ...

1.Jupiter was the first. Giant lies just beyond the frost line. As the frost line accumulated great amounts of water via evaporation from infalling icy material, it created a zone of lower pressure that increased the speed of orbiting dust particles and halted their motion toward the Sun. As a result , the frost line acted as a barrier whice lead material to accumulate. This excess material coalesced into a huge embryo of around 10 Earth masses, which then began to grow rapidly by swallowing hydrogen from the surrounding disc, reaching 150 Earth masses in only another 1000 years and finally topping out at ...

The degree of Mercury damage will vary on the amount of substance that is ingested and the type of chemicals that is associated with mercury. Given the situation, a proper awareness is required in-order to reduce the risk from having cancer. But also doing this plan, it requires a lengthy and concrete concept. In a way, that is effective and motivational to everyone who is affected. The most applicable technique is the trans theoretical method, which gives systematic guidelines to overcome the distress and to pull your senses back. This method involves theories from various assessments and eventually the concepts from what ...