Wednesday, November 27, 2019
Three Strike Law free essay sample
This paper analyzes the Three Strike Law which is used against repeated offenders. It uses the State of California as an example of the enforcement of this law and provides an overview of sources which are for and against its institution. This paper analyzes the Three Strike Law which is used against repeated offenders. It uses the State of California as an example of the enforcement of this law and provides an overview of sources which are for and against its institution. From the paper: Following the highly publicized kidnapping and murder of 12-year-old Polly Klaus and Kimber Reynolds, California Governor Pete Wilson signed the states three-strikes law, Proposition 184, in March 1994. The law was designed to punish the most serious and habitual offenders and help control crime. By May 31, 2001, over 50,000 criminals had been incarcerated. This included 43,800 under a second strike provision.
Sunday, November 24, 2019
Hypoxia essays
Hypoxia essays Hypoxia is a condition in humans that is caused by the reduction in partial pressure of oxygen, inadequate oxygen transport, or when tissues are simply unable to make use of the oxygen provided. This disease occurs in the tissues and brain. It results in a shortness of breath, and an overall impairment of function. Anoxia is the extreme form of hypoxia, and it occurs when there is absolutely no oxygen at all in the body that the brain and tissues can make proper use of. There are five different types of hypoxia. These types are hypoxemic hypoxia, anemic hypoxia, stagnant hypoxia, histoxic hypoxia, and pemic hypoxia. Hypoxemic hypoxia happens when there is a reduction in the amount of oxygen passing into the blood, resulting in too much hemoglobin and not enough oxygen. Therefore the oxygen pressure in the blood that is traveling to the tissues is too low to saturate the large amounts of hemoglobin. Hypoxemic hypoxia is caused by a reduced gas exchange area, exposure to high altitude, or by lung disease. Hypoxemic hypoxia has also been proven to be hazardous to aviators, mountain climbers, and generally in people living at high altitudes because the lowered barometric pressure causes the supply of oxygen to decrease. Anemic hypoxia occurs when there is not enough hemoglobin that is functional, and so the capacity of blood capable to carry oxygen is too low. In anemic hypoxia either the entire amount of the hemoglobin is too small to supply the bodys oxygen requirements-as in anemia or after severe bleeding-or the hemoglobin that is present is useless-such as in carbon monoxide poisoning and metho-globinuria. In both of the latter cases the hemoglobin is so altered by toxic agents that it becomes unavailable for any oxygen transport, and therefore is no longer useful to the respiratory system. Anemia is one of the most frequent cases of anemic hypoxia. It is a condition due to the healthy red blood cel...
Thursday, November 21, 2019
Construction and Testing of Solid State Oxygen Sensor Lab Report
Construction and Testing of Solid State Oxygen Sensor - Lab Report Example In the second experiment, the quenching of luminescence is tested. Experimentally, luminescence is developed and quenched. This process is usually undesirable and very high requirement are therefore imposed on the purity of luminescent. Quenching may occur without any permanent change in the molecules, for example with no photochemical reactions. In static quenching, a complex is formed between the fluorophore and the quencher and the complex is nonfloures-cent. Numerous application for quenching is as a result of the requirements of molecular contact, for example quenching measurements can reveal the accessibility of fluorophores to the quencher.Both static and dynamic quenching requires molecular contact between the fluorophore and the quencher. For collisional quenching, the quencher must diffuse to the fluorophore during lifetime of the excited state. When in contact, the fluorophore returns to the ground state without emitting photons. For a static and dynamic quenching to occur , the fluorophore and the quencher must be in contact.In this experiment, tri (2,2â⬠²-bipyridine) ruthenium (II) hexafluorophosphate is used with two quenchers namely phenothiazine (PTZ) and N, N, Nââ¬â¢, Nââ¬â¢-tetramethyl-p phenylenediamine (TMPD).In the third experiment, chemical electronic transitions that are usually induced through the absorption of visible light spectrum result in excited state molecules. In the process, energy is absorbed. The absorbed energy must be released to return the excited species back to the original ground state.
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