How to Convert Atmospheres to Pascals (atm to Pa)

How to Convert Atmospheres to Pascals (atm to Pa) Atmospheres and Pascals are two important units of pressure. This example problem demonstrates how to convert the pressure units atmospheres (atm) to pascals (Pa). Pascal is an SI pressure unit that refers to newtons per square meter. Atmosphere originally was a unit related to the air pressure at sea level. It was later defined as 1.01325 x 105 Pa. atm to Pa Problem The pressure under the ocean increases roughly 0.1 atm per meter. At 1 km, the water pressure is 99.136 atmospheres. What is this pressure in pascals? Solution:Start with the conversion factor between the two units: 1 atm 1.01325 x 105 PaSet up the conversion so the desired unit will be canceled out. In this case, we want Pa to be the remaining unit. pressure in Pa (pressure in atm) x (1.01325 x 105 Pa/1 atm)pressure in Pa (99.136 x 1.01325 x 105) Papressure in Pa 1.0045 x 107 Pa Answer:The water pressure at a depth of 1 km is 1.0045 x 107 Pa. Pa to atm Conversion Example Its easy to work the conversion going the other way - from Pascal to atmospheres. The average atmospheric pressure on Mars is about 600 Pa. Convert this to atmospheres. Use the same conversion factor, but check to make certain Pascals cancel out so you get an answer in atmospheres. pressure in atm (pressure on Pa) x (1 atm/1.01325 x 10​5 Pa)pressure in atm 600 / 1.01325 x 105 atm (the Pa unit cancels out)pressure on Mars   0.00592 atm or 5.92 x 10-2 atm In addition to learning the conversion, its worth noting the low atmospheric pressure means humans couldnt breathe on Mars even if the air had the same chemical composition as air on Earth.  The low pressure of the Martian atmosphere also means water and carbon dioxide readily undergo sublimation from the solid to the gas phase.

The Large Hadron Collider and the Frontier of Physics

The Large Hadron Collider and the Frontier of Physics The science of particle physics looks at the very building blocks of matter - the atoms and particles that make up much of the material in the cosmos. Its a complex science that requires painstaking measurements of particles moving at high speeds. This science got a huge boost when the Large Hadron Collider (LHC) began operations in September 2008. Its name sounds very science-fictiony but the word collider actually explains exactly what it does: send two high-energy particle beams at nearly the speed of light around a 27-kilometer long underground ring. At the right time, the beams are forced to collide. Protons in the beams then smash together and, if all goes well, smaller bits and pieces - called subatomic particles - are created for brief moments in time. Their actions and existence are recorded. From that activity, physicists learn more about the very fundamental constituents of matter. LHC and Particle Physics The LHC was built to answer some incredibly important questions in physics, delving into where mass comes from, why the cosmos is made of matter instead of its opposite stuff called antimatter, and what the mysterious stuff known as dark matter could possibly be. It could also provide important new clues about conditions in the very early  universe when gravity and electromagnetic forces were all combined with the weak and strong forces into one all-encompassing force. That only happened for a short time in the early universe, and physicists want to know why and how it changed.   The science of particle physics is essentially the search for  the very basic building blocks of matter. We know about the atoms and molecules that make up everything we see and feel. The atoms themselves are made up of smaller components: the nucleus and electrons. The nucleus is itself made up of protons and neutrons. Thats not the end of the line, however. The neutrons are made up of subatomic particles called quarks. Are there smaller particles? Thats what particle accelerators are designed to find out. The way they do this is to create conditions similar to what it was like just after the Big Bang - the event that began the universe. At that point, some 13.7 billion years ago, the universe was made only of particles. They were scattered freely through the infant cosmos and roamed constantly. These include mesons, pions, baryons, and hadrons (for which the accelerator is named). Particle physicists (the people who study these particles) suspect that matter is made up of at least twelve kinds of fundamental particles. They are divided into quarks (mentioned above) and leptons. There are six of each type. That only accounts for some of the fundamental particles in nature. The rest are created in super-energetic collisions (either in the Big Bang or in accelerators such as the LHC). Inside those collisions, particle physicists get a very fast glimpse at what conditions were like in the Big Bang, when the fundamental particles were first created. What is the LHC? The LHC is the largest particle accelerator in the world, a big sister to Fermilab in Illinois and other smaller accelerators. LHC is located near Geneva, Switzerland, built and operated by the European Organization for Nuclear Research, and used by more than 10,000 scientists from around the world. Along its ring, physicists and technicians have installed extremely strong supercooled magnets that guide and shape the beams of particles through a beam pipe). Once the beams are moving fast enough, specialized magnets guide them to the correct positions where the collisions take place. Specialized detectors record the collisions, the particles, the temperatures and other conditions at the time of the collision, and the particle actions in the billionths of a second during which the smash-ups take place. What Has the LHC Discovered? When particle physicists planned and built the LHC, one thing they hoped to find evidence for is the Higgs Boson. Its a particle named after Peter Higgs, who predicted its existence. In 2012, the LHC consortium announced that experiments had revealed the existence of a boson that matched the expected criteria for the Higgs Boson. In addition to the continued search for the Higgs, scientists using the LHC have created whats called a quark-gluon plasma, which is the densest matter thought to exist outside of a black hole. Other particle experiments are helping physicists understand supersymmetry, which is a spacetime symmetry that involves two related types of particles: bosons and fermions. Each group of particles is thought to have an associated superpartner particle in the other. Understanding such supersymmetry would give scientists further insight into whats called the standard model. Its a theory that explains what the world is, what holds its matter together, and the forces and particles involved. The Future of the LHC Operations at the LHC have included two major observing runs. In between each one, the system is refurbished and upgraded to improve its instrumentation and detectors. The next updates (slated for 2018 and beyond) will include an increase in collisional velocities, and a chance to increase the luminosity of the machine. What that means is that LHC will be able to see ever more rare and fast-occurring processes of particle acceleration and collision. The faster the collisions can occur, the more energy will be released as ever-smaller and harder-to-detect particles are involved. This will give particle physicists an even better look at the very building blocks of matter that make up the stars, galaxies, planets, and life.

Area of family gerontology Research Paper Example | Topics and Well Written Essays - 2750 words

Area of family gerontology - Research Paper Example They are also not in a position to communicate the abuse and thus suffer in silence (IQ Nursing Homes.com, 2008). According to the reports from the U.S. General Accounting Office, 43% of elderly population will live in a nursing home during a lifetime and of these atleast 3 million will be subjected to abuse and atleast 300,000 will die following abuse and neglect at nursing homes (cited in Roberts, 2004). Abuse and negligence leads to violation of human rights of the elderly people who deserve to be respected and have the right to live with dignity and comfort. Infact, the very purpose of admitting then to nursing homes is to make them feel comfortable and get assistance round the clock. Exploitation of their physical and mental vulnerability by means of abuse and neglect needs to be condemned and prevented. Many organizations, groups, laws and reports have devised methods of prevention of abuse and neglect in nursing homes. This article explores some of the measures which help prev ent abuse and neglect. Focus and research statement Is abuse and neglect of elderly common in the nursing homes of United States? Background information Types of abuse in nursing homes Abuse in the elderly can be physical, sexual, emotional or even wrongful death. Financial exploitation and abuse can also occur. Most of the times, abuse occurs by the staff of the nursing home. However, abuse can occur from other residents of the nursing home too. This article mainly concentrates on abuse from the staff. Abuse of the residents can lead to many consequences which vary in intensity ranging from mild discomfort to serious consequences like dehydration, starvation, serious injuries, bedsores and even death. The most common forms of abuse are neglect and caretaking mistreatment (Griffore et al, 2009). Indicators of abuse and negligence in nursing homes In majority of cases, abuse is not obvious and may be missed easily if a family member or a loved person is not watching intentionally. Si nce most of the times, the elderly person is not in a position to address and communicate abuse and neglect which he or she is subjected to, the family member or the loved person must make effort to identify abuse and neglect through various signs and symptoms of abuse (IQ Nursing Homes.com, 2008). When the elderly person becomes withdrawn or non-communicative, emotional abuse must be suspected. Other signs and symptoms of emotional abuse are anxiety, agitation, involuntary seclusion, mood swings, feeling of low self esteem, depression and strange behaviour like sucking, rocking and biting. Since many elderly people develop these features as part of their disease and old age, presence of symptoms and signs of emotional abuse can be attributed to old age mental conditions (IQ Nursing Homes.com, 2008). One clue to the fact that these symptoms actually are due to abuse and neglect is the fact that the onset of symptoms has occurred after admission to the nursing home. Signs and symptom s of physical abuse are unexplained injuries or accidents leading to bruises, abrasions, cuts, damage to the skin, fractures, welts, burns, broken eye glasses, lacerations and

The social impact of television in the Hunger games and 1984 Essay

The social impact of television in the Hunger games and 1984 - Essay Example While the year had come and gone, this narrative was written timely. The novel gives an amazing and haunting vision of the world. The powers of this novel are beyond doubt as it holds the all the imaginations of many generations of readers. This paper looks at the social impact that television has had on this two stories and how the government uses media especially television to control the people. The media especially television serves us with a lot of information. But the question that you may ask is ‘how often do we think about the impact of this information on our thoughts and behaviors?’ while we may believe that it is good to be informed without persuasion, then to some degree we have been manipulated by television. There are many instances in which the use of television has impacted the Hunger Games which was written by Suzanne Collins. In order to explore the television and its effect on people in the Hunger Game, it is easy to look at Katniss Everdeen as she becomes a leader and champion by understanding the power of television. Her unpredictable degrees of awareness and the manipulation of the content that is televised perfectly shows how society reacts to this as well. It is no secret that media specifically television is all around us, which provide us with information at all times. In many times, we perceive them as purely educational or entertaining. We barely think of its impact on our opinions and behaviors. After all, most people are capable of differentiating fact from fiction and can be informed without persuasion, right? But the truth of the matter is the Hunger Games has been impacted by the television. The level of manipulation, will however depend on one’s understanding of media operates, specifically how television impacts viewers. In the Hunger Games, the capitol uses television to keep the citizens compliant. The impact of this has been seen mainly in terms of beliefs, politics and opinions.

Truman Doctrines Essay Example for Free

Truman Doctrines Essay During the Cold War, most U. S. presidents came up with policies also known as â€Å"doctrines† to help remember who stood for what. In this report I will be summarizing a situation that required U. S. diplomatic efforts during President Harry Truman time; explicate the diplomatic doctrine the president followed; describing the effects of this diplomatic efforts for the U. S. and other countries; assess the advantages and disadvantages of the particular doctrine that followed. In February 1947, the British government informed the United States that it could no longer furnish the economic and military assistance it had been providing to Greece and Turkey since the end of WWII. The Truman administration believed that both nations were threatened by communism and it jumped at the chance to take a tough stand against the Soviet Union. In Greece, force has been battling the Greek royal government since the end of WWII. In Turkey, the Soviets were demanding some manner of control over the Dardanelles, territory from which Turkey was able to dominate the strategies waterways from the Black Sea to the Mediterranean. On March 12, 1947 Truman appear before a group of Congress to make his case. He declared the world faced a chance in the years to come. Nations could adapt a way of life â€Å"based upon the will of the majority† and minority forcibly imposed upon the majority. † He proposed the Truman Doctrine which provided political, military, and economic assistance to all democratic nations under threat from external or internal authoritarian forces. It effectively reoriented U. S. foreign policy, away from its usual standpoint of withdrawal from regional conflicts not directly involving the U.  S. , to one of possible intervention in far away conflicts. He began by outlining the situation in Greece and Turkey, â€Å"Assistance is imperative if Greece is to survive as a free nation, they must have assistance if it is to become a self-sufficient and self-respecting democracy. † Greece and Turkey will fall to communism without help. Truman requested that Congress provide $400 million worth of aid to both Greece and Turkey to support the dispatch of American civilian and military personnel and equipment to the region. Congress granted it. This became known as the Military Assistance Program. It ultimately led to NATO. Many historians say the Truman Doctrine marked the American policy of â€Å"containment. † The most famous passage from Truman’s speech: â€Å"I believe that it must be the policy of the U. S. to support free peoples who are resisting attempted subjugation by armed minorities or by outside pressure. † They ideas of this speech informed the communism that they can keep what it had got but Truman would not let it grow anymore. Houghton Mifflin says â€Å"that Truman Doctrine expanded the nation’s role in checking the spread of communism. † This interpretation basically presumes that the U. S. was in the right. As a result of Truman’s presentation of the global threat of Communism led to an anti-Communist Hysteria which was to end in the â€Å"Red Scare† of the 1950s. It also convinced the Soviets in Russia that Americas was a threat to Soviets Communism, and it substantially provoked the Cold War for the 30 years.

Amyotrophic Lateral Sclerosis Essay -- Medical Health Medicine Essays

Amyotrophic Lateral Sclerosis Amyotrophic Lateral Sclerosis is an insidiously developing, adult-onset, progressive anterior horn cell degeneration with associated degeneration of descending motor pathways. Despite increasing clinical and research interest, its cause remains obscure. Although many theories as to its cause have been proposed, no intervention has yet been shown to modify biologically determined motor system degeneration. There is no clear cut neuropathological diagnosis for Amyotrophic Lateral Sclerosis (ALS). Instead, clinicians must rely on both the topographic distribution of the neuronal loss and the finding of some characteristic cytological changes. The precise pattern of these changes, however, varies to some extent, depending on whether the disease is of the classical sporadic type, one of the less common familial types, or the Chamorro form in Guam (1). The primary feature of ALS is anterior horn neuronal cell degeneration and loss. The pathologic features of this process include shrinkage and pyknosis of the large spinal motor neurons (with consequent prominence of lipofuscin), the presence of ghost cells, neuronophagia, and gliosis (2). There is a massive loss of Betz cells and other pyramidal cells from the precentral cortex. Along with the loss of cortical cells, the corticospinal tracts are preferentially depleted of large myelinated fibers (3). Corticospinal tract involvement is most readily observed in the anterior and lateral columns of the spinal cord, particularly caudally. Degeneration of the spinocerebellar tracts may be seen. The posterior columns are affected (but not always) as well (4). Cell loss can be difficult to judge in the brainstem nuclei. Associated findings such as i... ...lerosis. Neurology, 1987; 37:529-532. 4. Williams, D. B., Windebank, A. J. Motor neuron disease (amyotrophic lateral sclerosis). Mayo Clin. Proc., 1991; 66(1): 54-92. 5. Swash, M., Schwartz. Staging motor neurone disease: single fiber EMG studies of asymmetry, progression and compensatory reinnervation. In Research Progress in Motor Neurone Disease, 1984; 123-140. 6. Hirano, A., et. al. Fine structural observations of neurofilamentous changes in amyotrophic lateral sclerosis. J. Neuropathol. Exp. Neurol., 1984; 43:461-470. 7. Kurland, L. T., Mulder, D. W. Epidemiologic investigations of amyotrophic lateral sclerosis. Neurology, 1989; 5:182-196. 8. Barron, K. D., Rodichok, L. D. Cancer and disorders of motor neurons. Adv. Neurol., 1982; 36:267-272. 9. Kurtzke, J. F. Risk factors in amyotrophic lateral sclerosis. Adv. Neurol., 1991; 56:245-70.

nt1330 unit 7 assinment1 Essay

TO: Business Manager FROM: IT Consultant I can understand how you concerned with your company’s security after all information on competitors can be invaluable or very harmful to a company and this is why it must be protected from prying eyes. This does not have to mean that you have to lose production over trying to secure your networks information. An easy measure like user names and passwords can be used to protect less sensitive information but how strong you make those usernames and passwords can have a significant effect on how well your information is protected. I will give you some tips on how to better secure your network with the tools that you already have at hand, keep in mind that you can also buy better security items to better protect you network things like; smart card, finger print scanners, retinal scanners, etc. but I only recommend these for really sensitive information and only for certain users in your company. On the server that is the DC log in to the administrator account and in the Active Directory Users and Computers in the Domain icon in the left pane click on the users icon, you’ll be able to see all of the users in that domain. From here you can click on any user and make changes as necessary, for user names I recommend you use the following format; using capital and lower case letters the first letter of their name, their whole last name and their employee number, ex. â€Å"CCbattle1234@Domain*%#.Local† if someone hack the account and all that they knew the person name and the domain name they could not get in because it is very unlikely that they would know that person employee number and if they do then you have a spy in your company. As for passwords I recommend that they be alpha numeric and what this means is that they should be at least eight characters long, be composed of upper and lower case letters, should contain at least one number and one special characte r. Best Regards,  IT Consultant