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Wyświetlanie postów z luty, 2018

Drowning

This article contains graphic images from real cases which may be disturbing to some viewers. Viewer discretion is advised.   Drowning is defined as death caused by submersion in a liquid. It can occur in an ocean or, in the case of alcoholic stupor, epileptics, or infants, in water as shallow as 6 in . The mechanism of death in acute drowning is irreversible cerebral anoxia. The most important physiological consequence of drowning is asphyxia. In drowning, the volume of water inhaled can range from relatively small to very large. In freshwater drowning especially, large volumes of water can pass through the alveolar–capillary interface and enter the circulation. Even when large volumes of water are absorbed, there is no evidence that the increase in blood volume causes significant electrolyte irregularities or hemolysis, or that it is beyond the capacity of the heart or kidneys to compensate for the fluid overload. Some individuals who drown are considered to be victims o

Instrumental and Expressive Homicides

There are various ways to classify types of criminal homicide. State statutes distinguish between criminal and non-criminal homicides, degrees of murders, and types of manslaughters. Law enforcement agencies often categorize homicides according to the characteristics of the offender (e.g., gang versus non-gang), the victim (e.g., child murders, teen violence, elderly victims), or situational context or attributes (e.g., domestic violence, stranger assaults, drive-by shootings, robbery- murders, road rage, or workplace homicides). Lawyers, social scientists, and law enforcers also classify homicides in terms of motive. Common motives for homicides include trivial altercations, jealousy, revenge, romantic triangles, robbery, sexual assault, burglary, and disputes in drug transactions. The research examines whether instrumental and expressive homicides are qualitatively different in their social context (i.e., combinations of offender, victim, and situational characteristics). We

Fuzzy Logic & Profiling

Fuzzy logic is used by mathematical sciences, it has found little or no application in the social sciences, especially criminology. As a mathematical system, fuzzy logic generalizes the Boolean logic and can be a very useful tool for the social sciences, where concepts and terms involve shades of meanings. Descriptions of suspects that police officers receive are often fuzzy in nature. They are described as “tall”, “dark”, “young,” or even “rude”, terms that are imprecise and admit a range of possibilities. In fact, policing itself involves many issues that are fuzzy and difficult to measure. For example, officer’s services are often evaluated as being “good” or “average,” while gang activity related areas are described as “dangerous” or “rowdy”. All these characteristics are essentially fuzzy, and difficult to use with common statistical techniques. In everyday conversation we use imprecise terms like “it’s a hot day”, “it’s an early morning meeting”, and “there is only