Nuclear power‚ or nuclear energy‚ is the use of exothermic nuclear processes carried out in controlled manner‚ to generate useful heat and electricity. Nuclear power works by using the energy from nuclear fission or fusion to generate heat. At the moment‚ nuclear fusion is still a subject of intense research and not used in production which is a pity. Nuclear fission is basically what is happening in a reactor. Radioactive elements have unstable nuclei and they are constantly going through random
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The cell is the fundamental structural unit of all living organisms. Some cells are complete organisms‚ such as the unicellular bacteria and protozoa; others‚ such as nerve‚ liver‚ and muscle cells‚ are specialized components of multi-cellular organisms. Cells range in size from the smallest bacteria-like mycoplasmas‚ which are 0.1 micrometer in diameter‚ to the egg yolks of ostriches‚ which are about 8 cm (about 3 in) in diameter. Although they may differ widely in appearance and function‚ all cells
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Stem cells -are biological cells found in all multi cellularorganisms‚ that can divide (throughmitosis) and differentiate into diverse specialized cell types and can self-renew to produce more stem cells. In mammals‚ there are two broad types of stem cells: embryonic stem cells‚ which are isolated from the inner cell mass of blastocysts‚ and adult stem cells‚ which are found in various tissues. In adult organisms‚ stem cells and progenitor cells act as a repair system for the body‚ replenishing
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world without nuclear weapons would be less stable and more dangerous for all of us.” In the article “Get real: nuclear power is in your future” Allan Kupcis argues that nuclear power is a necessity to maintain “the backbone of any economy.” Thus‚ in our day to days living‚ we seem to ask ourselves about what is meant by the term "Nuclear Energy." Some will give the right concept of the nuclear energy but others will not. It all depends with the knowledge one has about the nuclear energy. In this
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Nuclear doctrine: Doctrine is Latin word Doctrnia--- thought or advocate Doctrine is a set of principles formulated and applied for a specific purpose working towards a desired goal or aim A Nuclear doctrine consists of a set of principles‚ rules and instructions for the employment or non-employment of nuclear weapons and other systems associated with these weapons. Dimensions: 1. It is not permanent and change according to military and political situation of the country 2. Change according
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resistant pathogens through horizontal gene transfer. Located in the bacteria are plasmids. They are independent‚ self-duplicating‚ and allow bacteria to perform new functions/generate new products. Basically plasmids help their hosts to stop the action of antibiotics and become resistant. “Gene transfer must be integral and critical to the overall survival of bacteria‚ providing a way for them to adapt to difficult conditions” (Levy 2002‚ 83). Horizontal gene transfer can occur through conjugation‚ transposition
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At this time in our world we live in I do believe nuclear terrorism is a huge threat and the U.S. should be very concerned about it. It was noted by Jeffrey T. Richelson that “declassified documents have confirmed that the U.S. (and other) governments have anticipated the possibility of a terrorist nuclear incident at such high-profile events as the 2009 inauguration of President Barack Obama and the 2010 Vancouver Olympics” (Richelson 2012). United States government officials have been concerned
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Nuclear power is one of the most controversial energy sources in Canada and also throughout the world and is being talked about very frequently lately as to whether or not it is a safe alternative to other forms of energy such as coal or oil. In my opinion‚ energy from uranium (nuclear power) is a reasonable alternative to other forms of energy that come from non-renewable resources that are rapidly depleting. In the following essay I will enforce my opinion in the subject and attempt to convince
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roles of mitotic cell division‚ meiosis‚ and fertilization in the human life cycle. Mitosis allows for growth and repair from the fertilized egg to the adult. In reproductively mature individuals‚ meiosis creates gametes with half the genetic material. The male gamete then fertilizes the female gamete during sexual reproduction‚ forming a zygote with a full set of genetic material. 2. Why are both cell division and apoptosis necessary for the development of an organism? Cell division is needed
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Wireless energy transfer or wireless power is the transmission of electrical energy from a power source to an electrical load without artificial interconnecting conductors. Wireless transmission is useful in cases where interconnecting wires are inconvenient‚ hazardous‚ or impossible. The most common form of wireless power transmission is carried out using direct induction followed by resonant magnetic induction. Other methods under consideration include electromagnetic radiation in the form of microwaves or lasers
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