network of polymer chains that are hydrophilic‚ sometimes found as a colloidal gel in which water is the dispersion medium. Hydrogels are highly absorbent (they can contain over 99% water) natural or synthetic polymers. Hydrogels also possess a degree of flexibility very similar to natural tissue‚ due to their significant water content. These hydrogels have the ability to sense changes of pH‚ temperature‚ or the concentration of metabolite and release their load as result of such a change Natural and synthetic
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“New indoor shooting range ready to open” Summary This article is mainly about a local shooting range that just opened and is ready for shooters. Stephen Stewart’s C.I. Shooting Sports‚ 700 Wylie Drive‚ in the Crossroads Center‚ has 16 shooting lanes – all rifle-rated‚ he said. He also comments‚ “You’re looking at the best range equipment made.” The bullets are slowed and stopped by chunky rubber at the other end of the shooting range. Stewart describes it as “shooting into a bed of rice
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Polyester Manufacturing Polyester fibers‚ the synthetic fibers‚ are long chain polymers derived from coal‚ air‚ water‚ and petroleum. They are formed through chemical reaction between an acid and alcohol. In this reaction‚ two or more molecules combine to make a large molecule whose structure repeats throughout its length. These molecules are very stable and strong. There are variations in the compositions and therefore in the properties of polyester fibers. Types of Polyester The polyester
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production of PHB began after the 1990s because of the growing need for a environmentally friendly plastic alternative. Properties of PHB... The biodegradability of PHB gives it extraordinary appeal as a potential replacement for the widely used polymers derived from petrochemicals. These petrochemical products‚ such as polypropylene and polyethylene‚ are often used for packaging‚ but are a hazard to the environment because of the fact that when discarded they do not decompose and can cause injury
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Alternatives Adhering to the recent scenarios in Australian natural resource industry‚ where there is certain lack of adequate human resources to deal with such gigantic capital projects recently the country is dealing with‚ we have proposed some alternative solutions that can be considered by the concerned authorities while resolving this particular issue: • Make policies for effective management within available human resources • Hiring human resource from other regions of the world. • Outsource
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Explain how a follower of Natural Law theory might approach the issues surrounding Abortion The Natural Law theory takes a deontological approach to ethical issues like Abortion which is based on Thomas Aquinas’ view of Natural Law. Aquinas says that God creates human beings to fulfil their purpose to serve Him and our neighbour to bring us heaven and eternal life. In this aspect Natural Law followers would therefore say that a baby must be able to fulfil its life the way God planned it and this
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NATURAL HAZARDS AND DISASTERS IN THE CARIBBEAN Definitions A hazard can be defined as‚ “A potentially damaging physical event‚ phenomenon or human activity that may cause the loss of life or injury‚ property damage‚ social and economic disruption or environmental degradation”. Hazards can include latent conditions that may represent future threats and can have different origins: natural (geological‚ hydrometeorological and biological); or induced by human processes (environmental degradation
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Why do disputes over natural resources sometimes turn violent while others don’t? The following analysis will contribute to the debate over why natural resource disputes in particular regions turn into violent conflict in comparison to others. In order to address this question‚ it is crucial to understand the historical‚ economic‚ political and cultural context in which these conflicts arise. The approach taken in this essay is one that sees the exploitation of natural resources as only one of several
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How to prevent waste natural resources? People do not know about some natural resources are knocking out! But how people can prevent that? There are artificially substances that are introduced into the air. All this stuff is wasting all the natural resources that Earth planet has in. There are three reasons that naturals resources are knocking out. Air pollution‚ trash on the ground‚ and tree felling. Firstly‚ I think that we can reduce usage of vehicles that works with gasoline‚ diesel or any kind
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forces include; genetic drift‚ gene flow‚ and natural selection. Thus‚ by observing these principles in Darwin’s theory of evolution‚ it is reasonable to assume that the natural evolution of the human species will continue. Genetic drift is always occurring in
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