Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Human_skin_color> ?p ?o }
- Human_skin_color abstract "Human skin color ranges in variety from the darkest brown to the lightest hues. An individual's skin pigmentation is the result of genetics, being the product of both of the individual's biological parents' genetic makeup. In evolution, skin pigmentation in human beings evolved by a process of natural selection primarily to regulate the amount of ultraviolet radiation penetrating the skin, controlling its biochemical effects.The actual skin color of different humans is affected by many substances, although the single most important substance is the pigment melanin. Melanin is produced within the skin in cells called melanocytes and it is the main determinant of the skin color of darker-skinned humans. The skin color of people with light skin is determined mainly by the bluish-white connective tissue under the dermis and by the hemoglobin circulating in the veins of the dermis. The red color underlying the skin becomes more visible, especially in the face, when, as consequence of physical exercise or the stimulation of the nervous system (anger, fear), arterioles dilate.There is a direct correlation between the geographic distribution of UV radiation (UVR) and the distribution of indigenous skin pigmentation around the world. Areas that receive higher amounts of UVR, generally located closer to the equator, tend to have darker-skinned populations. Areas that are far from the tropics and closer to the poles have lower intensity of UVR, which is reflected in lighter-skinned populations. Researchers suggest that human populations over the past 50,000 years have changed from dark-skinned to light-skinned and vice versa as they migrated to different UV zones, and that such major changes in pigmentation may have happened in as little as 100 generations (≈2,500 years) through selective sweeps. Natural skin color can also darken as a result of tanning due to exposure to sunlight. The leading theory is that skin color adapts to intense sunlight irradiation to provide partial protection against the ultraviolet fraction that produces damage and thus mutations in the DNA of the skin cells. In addition, it has been observed that adult human females on average are significantly lighter in skin pigmentation than males. Females need more calcium during pregnancy and lactation. The body synthesizes vitamin D from sunlight, which helps it absorb calcium. Females evolved to have lighter skin so their bodies absorb more calcium.The social significance of differences in skin color has varied across cultures and over time, as demonstrated with regard to social status and discrimination.".
- Human_skin_color thumbnail Coloured-family.jpg?width=300.
- Human_skin_color wikiPageExternalLink 4531966.stm.
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- Human_skin_color wikiPageExternalLink ?op=view_profil&id=32&lang=fr.
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- Human_skin_color wikiPageWikiLink ATRN.
- Human_skin_color wikiPageWikiLink Africa.
- Human_skin_color wikiPageWikiLink Afro-textured_hair.
- Human_skin_color wikiPageWikiLink Agouti_signalling_peptide.
- Human_skin_color wikiPageWikiLink Albinism.
- Human_skin_color wikiPageWikiLink Allele.
- Human_skin_color wikiPageWikiLink Alpha-Melanocyte-stimulating_hormone.
- Human_skin_color wikiPageWikiLink Anatomically_modern_human.
- Human_skin_color wikiPageWikiLink Archaic_humans.
- Human_skin_color wikiPageWikiLink Areola.
- Human_skin_color wikiPageWikiLink Argyria.
- Human_skin_color wikiPageWikiLink Arsenic.
- Human_skin_color wikiPageWikiLink Arteriole.
- Human_skin_color wikiPageWikiLink Autoimmunity.
- Human_skin_color wikiPageWikiLink Axilla.
- Human_skin_color wikiPageWikiLink Bipedalism.
- Human_skin_color wikiPageWikiLink Black_light.
- Human_skin_color wikiPageWikiLink Blond.
- Human_skin_color wikiPageWikiLink Body_hair.
- Human_skin_color wikiPageWikiLink Calcium.
- Human_skin_color wikiPageWikiLink Cambridge_University_Press.
- Human_skin_color wikiPageWikiLink Candidate_gene.
- Human_skin_color wikiPageWikiLink Carboxylic_acid.
- Human_skin_color wikiPageWikiLink Carnation_(heraldry).
- Human_skin_color wikiPageWikiLink Carotenosis.
- Human_skin_color wikiPageWikiLink Category:Human_genetics.
- Human_skin_color wikiPageWikiLink Category:Human_physiology.
- Human_skin_color wikiPageWikiLink Category:Skin_physiology.
- Human_skin_color wikiPageWikiLink Category:Skin_pigmentation.
- Human_skin_color wikiPageWikiLink Chimpanzee.
- Human_skin_color wikiPageWikiLink Coco_Chanel.
- Human_skin_color wikiPageWikiLink Color_terminology_for_race.
- Human_skin_color wikiPageWikiLink Complexion.
- Human_skin_color wikiPageWikiLink DNA.
- Human_skin_color wikiPageWikiLink Dark_skin.
- Human_skin_color wikiPageWikiLink Dermis.
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- Human_skin_color wikiPageWikiLink Directional_selection.
- Human_skin_color wikiPageWikiLink Discrimination.
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- Human_skin_color wikiPageWikiLink Dominance_(genetics).
- Human_skin_color wikiPageWikiLink Dopachrome_tautomerase.
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- Human_skin_color wikiPageWikiLink Egypt.
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- Human_skin_color wikiPageWikiLink Eye_color.
- Human_skin_color wikiPageWikiLink Folate_deficiency.
- Human_skin_color wikiPageWikiLink Folic_acid.
- Human_skin_color wikiPageWikiLink Ganguro.
- Human_skin_color wikiPageWikiLink Geisha.
- Human_skin_color wikiPageWikiLink Gene.
- Human_skin_color wikiPageWikiLink Genetics.
- Human_skin_color wikiPageWikiLink Genome-wide_association_study.
- Human_skin_color wikiPageWikiLink Greece.
- Human_skin_color wikiPageWikiLink Hair_follicle.
- Human_skin_color wikiPageWikiLink Han_Chinese.
- Human_skin_color wikiPageWikiLink Haplotype.
- Human_skin_color wikiPageWikiLink Health_effects_of_sunlight_exposure.
- Human_skin_color wikiPageWikiLink Hemoglobin.
- Human_skin_color wikiPageWikiLink Hispanic.
- Human_skin_color wikiPageWikiLink Hominidae.
- Human_skin_color wikiPageWikiLink Hominini.
- Human_skin_color wikiPageWikiLink Homo_ergaster.
- Human_skin_color wikiPageWikiLink Homo_heidelbergensis.
- Human_skin_color wikiPageWikiLink Homo_sapiens.
- Human_skin_color wikiPageWikiLink Hong_Kong.
- Human_skin_color wikiPageWikiLink House_slave.
- Human_skin_color wikiPageWikiLink Human_genetic_variation.
- Human_skin_color wikiPageWikiLink Human_hair_color.
- Human_skin_color wikiPageWikiLink Human_physical_appearance.
- Human_skin_color wikiPageWikiLink Human_skin.
- Human_skin_color wikiPageWikiLink Hunter-gatherer.
- Human_skin_color wikiPageWikiLink Hyperpigmentation.
- Human_skin_color wikiPageWikiLink India.
- Human_skin_color wikiPageWikiLink Indirect_DNA_damage.
- Human_skin_color wikiPageWikiLink Indole.
- Human_skin_color wikiPageWikiLink Industrial_Revolution.
- Human_skin_color wikiPageWikiLink Inverse_agonist.
- Human_skin_color wikiPageWikiLink Japan.
- Human_skin_color wikiPageWikiLink Jaundice.
- Human_skin_color wikiPageWikiLink Jill_Nelson.
- Human_skin_color wikiPageWikiLink John_Gurche.
- Human_skin_color wikiPageWikiLink Keratinocyte.