
Human body ii
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Human dentin, as an important calcified tissue in the body, plays significant roles in withstanding masticatory forces and has a complex hierarchical organization. Understanding the composition and ultrastructure of dentin is critical for elucidating mechanisms of biomineralization under healthy and pathological states.
9p
partimesinhvien
08-05-2020
12
1
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The sixteenth chapter I cannot help considering as a very ingenious and specious, but very disgraceful extenuation of the cruelties perpetrated by the Roman magistrates against the Christians. It is written in the most contemptibly factious spirit of prejudice against the sufferers; it is unworthy of a philosopher and of humanity. Let the narrative of Cyprian's death be examined. He had to relate the murder of an innocent man of advanced age, and in a station deemed venerable by a considerable body of the provincials of Africa, put to death because he refused to sacrifice to Jupiter.
387p
nhokheo9
03-05-2013
49
5
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Endocrine disruptors function by: (i) Mimicking the action of a naturally-produced hormone, such as estrogen or testosterone, thereby setting off similar chemical reactions in the body; (ii) Blocking hormone receptors in cells, thereby preventing the action of normal hormones; or (iii) Affecting the synthesis, transport, metabolism and excretion of hormones, thus altering the concentrations of natural hormones.
18p
yasuyidol
02-04-2013
51
3
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Humans (Homo sapiens[3][4][5]), the only living members of the genus Homo, are mammals of the primate order originally from Africa, where they reached anatomical modernity about 200,000 years ago and began to exhibit full behavioral modernity around 50,000 years ago.[6] The human lineage diverged from its last common ancestor with the chimpanzee some 5 million years ago in Africa, evolving into the Australopithecines and eventually the genus Homo.
56p
kennybibo
10-07-2012
122
18
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Humans are characterized by having a large brain relative to body size, with a particularly well developed neocortex, prefrontal cortex and temporal lobes, making them capable of abstract reasoning, language, introspection, problem solving and culture through social learning. This mental capability, combined with the adaptation to bipedal locomotion that frees the hands for manipulating objects, has allowed humans to make far greater use of tools than any other living species on Earth.
56p
kennybibo
10-07-2012
90
16
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