CANCER - GENERAL |
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Cancer is a class of diseases or disorders characterized by uncontrolled division of cells and the ability of these cells to invade other tissues, either by direct growth into adjacent tissue through invasion or by implantation into distant sites by metastasis. This unregulated growth is caused by damage to DNA, resulting in mutations to genes that encode for proteins controlling cell division. Many mutation events may be required to transform a normal cell into a malignant cell. These mutations can be caused by chemicals or physical agents called carcinogens, by close exposure to radioactive materials, or by certain viruses that can insert their DNA into the human genome. Mutations occur spontaneously, or are passed down generations as a result of germ line mutations.
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CHILD PORNOGRAPHY |
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Generally, child pornography (sometimes referred to as CP, child porn, KP, or kiddie porn) is an illegal form of pornography, featuring minors. The term "child" is defined for this purpose by each country's child pornography laws, and these laws also set forth criteria to use in determining whether a particular depiction of a child is child pornography.
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PATHOLOGY |
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Pathology (from Greek pathos, feeling, pain, suffering; and logos, study of; see also -ology) is the study of the processes underlying disease and other forms of illness, harmful abnormality, or dysfunction. Within biology, it means specifically the study of the structural and functional changes in cells, tissues and organs that underlie disease. Another name for pathology is laboratory medicine.
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