Obstruction of a Fire Protection System Essays - Firefighting

Obstruction of a Fire Protection System Student Name Instructor MOS 5301 Fire Protection Technology Columbia Southern University The fire sprinkler system in a large indoor self-storage facility is designed to ensure full and adequate protection by overlapping the radius of the sprinkler heads. This radii coverage is meant to ensure that the water reaches out to all the corners of the store and provides the ready fire response. The effectiveness of the overlapping radii coverage can be limited by the arrangement of the materials which may be stacked too high that the sprinklers fail to operate effectively. This would prevent the sprinkler heads from covering the effective range that would help them reach to the combustible hazards. The Occupational Safety and Health Association and the National Fire Prevention Association Standards require that the stacking is not done so high to block the effectiveness of the sprinkler heads. According to NFPA and OSHA, storage materials must not get closer than the 18 inch distance near the plane or close to the horizontal levels of the sprinkler (Klaus, 2014). Only the shelf-stored materials along the room's perimeter wall are allowed to go beyond the 18 inch clearance but should not come close to the sprinkler deflector. The standards also require that during the repainting of the pipes or the ceilings, the sprinkler out to be covered to prevent paint from blocking its nozzles. The maker of the sprinkler is the only party allowed to repaint it. The owner of the store is required to carry out a regular inspection of the sprinkler to ensure that it is effectively functioning and to report any malfunctions to the relevant persons. There ought to be no items hanging on the sprinklers, guards of the pipes at any time. Reference Klaus, M. J. (2014) NFPA 25 Water-Based Fire Protection Systems Handbook, 4th Edition. Quincy

Bisect and Dissect

Bisect and Dissect Bisect and Dissect Bisect and Dissect By Simon Kewin Its tempting to think that dissect and bisect mean the same thing : to cut something in two. After all, the bi- and di- prefixes both convey the meaning of â€Å"two† or â€Å"twice†. So we have bicycle (with two wheels) and dioxide (with two oxygen atoms). In fact only bisect means to cut in two. A line cutting through a circle would be said to bisect it. A river might bisect a city. The prefix of dissect is not di-, however, but dis- meaning â€Å"apart†. Its the same prefix as in words such as disintegrate (to break up into small parts) and dismember (to cut the limbs from something). Dissect means to methodically cut something into pieces rather than to merely cut it in two. So, for example, organs might be dissected in order to find out how they work. Dissect has also acquired the more figurative meaning of studying something in great detail without any literal cutting taking place. Thus a statement or report might be â€Å"dissected† to see if it contains any inconsistencies or inaccuracies. When the two words are mixed up, generally it’s the case that dissect is used when bisect is meant. Sometimes dissect is misspelled â€Å"disect† to add to the confusion. Only bisect means to cut something into two parts. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Misused Words category, check our popular posts, or choose a related post below:What is the Difference Between "These" and "Those"?Social vs. SocietalComma After Introductory Phrases

Cancer Essay Example | Topics and Well Written Essays - 1250 words - 1

Cancer - Essay Example This often typically leads to a lump or a mass called a tumor, which are usually benign. Malignant cancers are capable of spreading to other organs as in the case of lymphoid vessels. In blood tissue, cells such as the erythrocytes or leucocytes get affected and cause leukemia. This is often characterized by an increase in the viscosity of blood. In this paper, I would like to discuss the commonly occurring types of cancers, causative factors, chemotherapy and radiation as treatment options, expenses and adverse effects associated with these treatment regimens, and the role of a healthy diet to minimize the occurrences of this disorder. Common types of cancers: As stated in the thesis outline, the most frequently observed sarcomas or cancers are those of the liver, breast, colon, prostate and lung, and has been the leading cause of death in the past five decades. Breast cancers are typically observed in post-menopausal women, and thus, it is extremely essential for periodic screening . Mammography is the technique used in this case and is usually recommended annually. Recent trends include biopsy of the breast tissue, followed by analysis for RNA content, as this biotechnology procedure sheds light on the expression of the gene responsible for cancer. A subtle marginal increase in these biological indicators, could suggest the initial phases of breast cancer. (1Popat and Smith, 2006) Prostate cancer, which is exclusive to men, is observed beyond the age of 50. Early detection is key, as the cancer could be prevented from metastasizing by surgical removal of the gland. Diagnostic procedures for liver, lung or pancreatic cancers usually entail a measurement of enzymatic levels in the body, by biochemical assays. For example, the presence of serum based prostate specific antigen (PSA) or Kallikrein indicates the possibility of prostate cancer in men or ovarian cancer in women. Or, elevated levels of alpha-fetoprotein are typical in liver cancers due to cirrhosis. ( Ullah and Aatif, 2009) Thus, biomarkers are excellent tools in the early diagnosis of various types of cancers, which help the clinician in designing the appropriate treatment protocol. Chemotherapy and radiation: The management of cancers by the administration of cytotoxic chemical agents is termed as chemotherapy. There has been a surge in the discovery of various chemical classes of cytotoxic compounds in the past few decades. Recent methods of treatment for certain rare forms of cancers include administration of a novel category of biological drugs called monoclonal antibodies. In some conditions, chemotherapy alone cannot control rapidly growing tumors and cancers. In such cases, radiation therapy is often used, either standalone, or in combination with chemotherapy. (Verweij and de Jonge, 2000) Radiation, as the name suggests involves targeting the affected tissue with high-energy electromagnetic rays (beta or gamma rays), which, on account of their short wavelength, have high penetrating powers. The energy associated with this radiation kills cells on contact. A major drawback of chemotherapeutic agents and radiation is their non-selectivity. They cannot differentiate the cancerous from the healthy cells, which results in damage to viable cells, although precision techniques such as the gamma knife are employed. Other unpleasant effects such as hair

Dose makes the poison Research Paper Example | Topics and Well Written Essays - 500 words

Dose makes the poison - Research Paper Example Our body itself is a combination of chemical elements and compounds. It is vital to divide the chemicals present in our environment into the good ones and the harmful ones. Moreover, also focus on how the toxic and deadly effects of the chemicals can be avoided is also of importance. The story of Strong Poison by Dorothy S. Layers revolves around a mystery case of the murder of Philip Boyes by arsenic poisoning. Harriet Vane is accused of the murder of her fiancà ©, as she is a crime novelist and knows an awful lot about the novel and all the evidence points in her direction. However, Lord Peter Wimsey is convinced of her innocence and struggles to convince the jury as well. The book discusses a great deal about the arsenic poisoning and the symptoms the victim suffers from, bringing the horrifying adverse effects of a toxic chemical under highlight. It is vital to understand what is toxic in our environment and can lead to adverse effects. A toxic substance is a substance that can be poisonous or cause health effects. Toxicity of a substance is not measured on the basis of its severity of effects; it can strike a single cell, a group of cells, an organ or the whole body. It is basically measured to the degree to which it is poisonous to biological organisms including humans. Chemicals toxicity is also dependent on the dose of the chemical, route of exposure, the duration and the number of incidents of exposure, and individual’s susceptibility. In 1500s, Philippus Aureolus brought forward the argument that a chemical can be entirely harmless or even advantageous at low concentrations but the same chemical can turn into toxic at higher levels. He stated, â€Å"All substances are poisons; there is none which is not a poison. The right dose differentiates a poison from a remedy† (Trautmann). Indeed many chemicals which are beneficial at low concentrations even essential for human health can lead

A paper for oceanography based off of the book called The Eskimo and Essay - 1

A paper for oceanography based off of the book called The Eskimo and the Oil Man by Bob Reis - Essay Example ng of the global climates and the trending climatic concerns such as the global warming and the possible impacts on the ecosystem dynamics and the life supporting atmospheric portion i.e. the biosphere at large. The atmosphere and the biosphere are interrelated through the natural processes of evaporation, precipitation and the natural heat exchange processes. This refers to the study of the ecology of the marine ecosystems with regards to their surrounding ocean environment. Marine biologists study the life in the oceans (marine ecology) and as well as the total organic production in the seas and oceans. The marine life consists of the floating or weakly swimming organisms known as planktons and rapidly swimming organisms referred to as nektons. Marine oceanographers map the floors of oceans, analyze the problems of the shorelines, and study the deposits and other sediments of the ocean floor and rock layers of the earth’s crust. Biological oceanography therefore looks into the influence of the ocean’s physical, chemical and the geological characteristics on the marine ecology or ecosystems. This is the study of the Chemistry underlying the ocean environment and the processes of its interactions with the atmosphere. Chemical oceanography is looks into the chemistry of seawater, the major salts it contains, and other trace elements found in the oceans. This is the study of the physical processes of the oceans such as the mixing, waves, tides, ocean currents, water transparency density and temperature; as well as under water acoustics and sound transmission. In his book, The Eskimo and the Oil Man: The Battle at the Top of the World for America’s Future, Bob Reiss is particularly concerned with the Oil exploration strategy by the Shell Company on the North Arctic coast of Alaska, focusing on the potential threats to the Ocean, impact on the marine ecosystems and the Americans living within the neighborhood. This intertwines all the mentioned branches of

Psychological Theories on Organisational Work Conditions

Psychological Theories on Organisational Work Conditions A) Describe what psychologists have discovered about organisational work conditions. Psychologists have spent many years trying to prove or disprove the fact that organisation in the work place effects the productivity of the employees. That is to say, if work conditions such as lighting, temperature, noise and vibration do indeed affect the level to which the employees subjected to these issues work. It is proven that the correct lighting will aid a worker in producing a higher level or productivity without tiring so easily. High or low temperature extremes will lower concentration and affect the ability of the worker to continue effective production. High noise levels will detract the workers attention and may cause headaches and other physical ailments which disallow continuing success in the work place. Vibration clearly affects the work of someone needing a steady hand with these things in mind we can see with little doubt that without moderation and organisation work conditions can deteriorate at a vast pace. Work tedium and lack of motivation can be caused by bad management. B) Evaluate what psychologists have discovered about organisational work conditions. Let us first address the issue of lighting. Lighting in any instance is a highly reactive thing. In a nightclub or in a romantic setting the lighting is always dim and soft to increase the confidence of the persons involved. Why then, should this be any different in a work place? It is patently obvious that light too dim can cause someone to strain their eyes, not only meaning that they need put in more effort to gain the same results, but they may also result in physical ailments such as headaches and migraines, therefore leading to a great decrease in productivity. Light too bright and harsh can be intrusive, it can affect the workers morale, making them feel on display, and under interrogation, promoting nervousness and strain, thereby affecting the productivity of their work. Temperature is a particularly important factor of the work place. If people feel cold, they are using energy to try and warm themselves, energy that could be used in other ways. If someone is too hot, they become lethargic and listless, making them unable to apply themselves in a devoted manner to any task. Both extremes are damaging to the work place, not only do they create these physical manifestations but they also affect the mood of a worker. Someone knowing that they will be cold all day at work will eventually become unwilling to enter the work place, fearing for yet another day of shivering. Someone knowing that their work place is far too hot will also eventually become unwilling to enter the work place, they can become dehydrated and snappy, irritable with other work mates and generally spreading an unhealthy work atmosphere. High noise levels can be damaging to concentration. Whilst many people enjoy working with the background noise of some music, it is proven to be detrimental to work productivity levels if noise gets too loud. The brain will inevitably find itself split between two tasks that of the work, and that of listening to the noise, and this inevitably detracts from the quality of the work being produced. At the same time, silence or practically no noise in the work place can cause workers to become self-conscious and nervous, also not advantageous to high quality work. Vibration caused by any number of things machines in the office / warehouse where someone works, traffic outside on the street or even faulty plumbing, clearly affects the work of someone needing a steady hand. Not only is this damaging for the quality of the work, but it can also cause health problems in the long term, resulting in back pain and migraines. Bad management such as over delegation or lack of rotation between tasks can cause tedium and boredom in the work place resulting in a lack of motivation to complete the work set, and eventually a higher level of absentees as people decide that going into work is just too tedious and they begin to take ‘sick days’. C) Giving reasons for your answer, suggest how work conditions and schedules may be organised to reduce their negative effects. Most of the above issues can be monitored and regulated through good organisational management. An alert and active manager is required to motivationally ensure that his work team are in the appropriate surroundings to optimise work capacity through conditions. This will alter from work place to work place, for instance, in an office, it is appropriate to have overhead lighting that is not too intrusive and then offer the workers desk lights so that they can monitor their own lighting for their own personal comfort and therefore productivity. Offices should be kept on the warm side rather than the cool side, because staff are generally stationary and this can cause bad circulation. Sitting in the same place all day can cause coldness and effective heating which can be monitored simply is a good solution. This way the staff can operate a consensus and alter the heating if they feel the need to. The noise level should be kept at a constructive rate enough to encourage movement and act ion without negating maximum concentration. Staff should not feel self conscious on the phone or when talking because there is only silence, but loud music or television are obviously not appropriate in this case, as they would clearly detract from the workers ability to give full concentration to the business in hand. Computers should be monitored so that sound is usually turned off unless necessary so that the rest of the workers are not subjected to each computer making different noises all through the day. If the job in question is more physical, say in a warehouse, then these things may be altered. Louder music may encourage faster movement and higher activity levels, lower temperatures will be necessary because the work is more physical and worker will heat more quickly, lighting may need to be more stringent in order to avoid tripping or any accidents. Vibration in any work place is not beneficial, it will make anything involving your hands harder and most jobs do involve ta ctility. It can cause physical and bodily harm and pain and no work place wishes to subject this on its workers. Maximum attention should be given to ensure that no-one is in the situation where they are subjected to constant vibration. Lastly, this should all be overseen by a manager who has the foresight to allow for all these things, and the personal tastes of his team. He should allow change and varied job delegation in order to avoid boredom and tedium, this will give his staff a pleasant and comfortable environment in which to offer his staff diverse activities, keeping them motivated, happy and relaxed.

The Philosophy of Cognitive Science Essay -- Neurology Psychology Pape

The Philosophy of Cognitive Science Psychophysical dualism — the distinction between mind and body — is the counterposition between essentially irreducible elements: the mind and body. Such a dualism implies the main ontological problem of the philosophy of cognitive science and philosophy of mind: the mind-body problem (MBP). The dualism and the referred-to problem has been insistently discussed in the philosophical tradition and several solutions have been proposed. Such solutions are properly philosophical or require a scientific approach. First, I will expound the philosophical solution to the MBP proposed by Descartes, to be followed by an exposition of Ryle's criticisms to the solution. Second, from Ryle's criticism, I will deduce a scientific solution to the MBP related to the neural framework model of mind in cognitive science by means of what I call 'the principle of the embodiment of the mind.' Finally, I shall point out the philosophical difficulties that are to be found in using such a princip le. If I've reason, then the philosophical problems must let dissolve themselves without any rest, differently from others... — Ludwig Wittgenstein But this very attraction should make us suspicious: in the history of philosophy, attempts at showing a problem to be "pseudo-problem" have often encountered the very same difficulties that have beset attempts to solve the problem. — Hilary Putnam I - INTRODUCTION The psychophysical dualism or mind-body distinction is the counterposition between two essentially irreducible elements: soul and body. Such dualism implies, as we will show, the more discussed issue of philosophy of cognitive science and philosophy of mind: the mind-body problem (MBP, henceforth) whose the en... ...r and Zopf, Pergamon, p. 255-78, 1962). Atlan, H. Entre le Cristal et la Fumà ©e. Essai sur l'organisation du vivant. Ed. du Seuil, Paris, France, 1979. Churchland, D. P. Theories of Brain Function. In : Neurophilosophy: Towards a Unified Science of Mind and Brain, MIT Press, 1986. Descartes, R. Les Meditations Metaphysiques. Ec. Tannery & Adam: Librairie Philosophique L. Vrin, vol. IX -1, 1982. Gardner, H. The Mind's New Science: A History of Cognitive Revolution. New York, Basic Books, 1987. Guà ©roult, M. Descartes Selon l' Ordre de Raisons. Ed. Aubier, vol 1, Paris, 1964. Gonzales, M. E. Q. Neural networks and Mental Representation: An essay on Harmony and Rationality. In: Trans/ Form/Aà §Ãƒ £o, Sà £o Paulo, v. 14, p.93-108, 1991. Nagel, E. The Structure of Science: Problems in the Logic of Scientific Explanation. Routhledge & Kegan Paul, London, 1961.