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    Lead Toxicity in Children

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    Lead Toxicity in Children Lead poisoning in children was first discovered in 1890 in Queensland, Australia. The lead source was not identified until 1904, when a researcher traced it to the paint used on railings and verandahs. The first discovery of lead poisoning in the United States (with a traceable source) was in 1914; the child had chewed the paint off of his crib. At this time they linked lead poisoning as a cause of convulsions in children. As research progressed and more children were

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    MLX-NLC gel stored at different temperature and humidity conditions (Table 1) were evaluated for any changes in particle size, PI, zeta potential, and drug content at 30, 60, 90 days time points to assess the effect of storage conditions on the stability as a function of time. The particle size was monitored at regular time intervals during storage to assess particle aggregation. The nanoparticles are thermodynamically unstable system and for their stability, a zeta potential value between –30 mV

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    Lead Toxicity: Its Effects on Fetal and Infant Development Lead toxicity has been an area of unending research in recent years. There have been positive and negative correlation’s relating its toxic effects to both child developmental deficiencies and adult regression problems. This review will focus on the problems associated with the children. It will discuss various routes of entry of lead into the child’s system, both prenatally and postnatally, the mechanisms employed by lead to cause the

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    Human In Vitro Testing

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    Everyday scientists perform different tests on cells (known as in vitro testing) to assess numerous concepts, such as drug efficiency and nanoparticle toxicity. Unfortunately, these tests do not always provide the best or most accurate results since the human body is composed of several different cell types, all of which interact and cause robust responses that cannot accurately be mimicked or studied with single cells. Thus, current techniques are being employed to imitate the complexity of the

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    Forensic toxicology is a branch of forensic science concerned with the study of toxic substances or poisons; toxicology is the study of the toxic or harmful effects of chemicals. It is concerned with how toxins act, when their harmful effects occur, and what the symptoms and treatments are for poisoning. It also involves the identification of the substances involved (Interdisciplinary). Forensic toxicologists have faced numerous challenges throughout the 1800’s and are still facing some of these

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    3.1.2 Regression QSAR modeling QSAR models were developed to predict the toxicity (-log EC50 mmol/L) of chemicals using the EL based modeling methods (DTB, DTF). Distribution of the selected descriptors for regression modeling is shown in the radar chart (Fig. 1). A 10-fold CV was adopted to determine the optimal architecture and the model parameters, using the criterion of minimum MSE in training and validation set. The average values (10 runs) of MSEs and in internal validation and training

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    Electronic Waste Essay

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    environment and our lives. It is caused by the disposal of electrical appliances due to malfunction, exhaustion or obsolescence. This type of pollution is a concern due to its rapid growth and popularity in today’s society as well as the high levels of toxicity contained within such appliances (Hein Online citation: 17 Vill. Envtl. L.J. 307 2006). Body An article on The Human and Environmental Effects of E-waste by Lucy McAllister states that roughly 40 million metric tons of electronic waste is produced

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    Toxic Handlers

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    A toxic handler is one who helps those who are struggling with organizational change to cope with different nuisances associated with the change (Palmer, Dunford, & Akin, 2009). Change that is not communicated well is abrupt and untimely or has unrealistic expectations create toxic feelings in employees that must be handled. A characteristic of a toxic handler is a capacity for empathy and a willingness to act to try to address pain and suffering in others caused by organizational change (Palmer

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    Electronic Waste Essay

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    Emerging Health Concern. 2011:431). Thus, it is the fastest growing product of town waste. Electronic devices contain a large variety of chemical elements and molecules – a cell phone alone contains roughly forty elements from the periodic table. The toxicity of these elements can be very high, posing a major risk to pregnant women and the neurodevelopment of their forming foetuses. Infants and developing foetuses are at critical periods of neuronal growth and exposure to the hazardous chemicals abundant

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    danger that tags along with this benefiting science does need to be understood before their usage becomes prevalent. Environmental scientists who are concerned about health of organisms and hazard to environment are researching and accessing about toxicity, distribution and fate of the nanoparticles that is released into the environment. Properties of nanoparticles can impact the environment in a negative way. The surface effects of nanoparticles are both favourable and unfavourable. When they are

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