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Study explains evolution phenomenon that puzzled Darwin
evolution phenomenon puzzled Darwin
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2016/12/13
Why do some animals have extravagant, showy ornaments — think elk and deer antlers, peacock feathers and horns on dung beetles — that can be a liability to survival? Charles Darwin couldn’t figure it ...
Environmental Sensitivity: A Neurobiological Phenomenon?
neurobiology sensitive sensitivity environmental anomalous perception migraine allergy allergies synesthesia chronic fatigue fibromyalgia pain phantom psi psychic apparitions apparitional gender women female laterality handedness trauma childhood boundaries somatic somatization psychosomatic hypnosis depression alcoholism electrical chemical immune shyness stress genetic brain early childhood development mind body mind-body illness unconscious subconscious hyper-sensitive imagination fantasy fantasy-prone emotion empathy dissociation mystical transliminal transliminality absorption hallucination hallucinations dream dreams creative magical paranormal neuroimaging electromagnetic personality irritable bowel shy shyness fearful introvert introversion sensory overload ambidextrous corpus callosum first-born in utero psychoneuroimmunology
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2015/7/30
Researchers often use the term “sensitivity ” when theorizing that certain persons may be more readily affected by various influences than others. Through a review of the literature, it is argued that...
Role of lipid signalling pathways in an intra and an extracellular phenomenon
Lipid signal cells nuclear envelope lipid signal cells hela cell the membrane vesicles
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2014/12/11
This dissertation is in two parts. The first part investigates the role of lipid signalling pathways in an intracellular phenomenon i.e. the formation of the nuclear envelope. The second part is a stu...
Random fluctuations give rise to odd genetic phenomenon（图）
Random fluctuations odd genetic phenomenon
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2010/3/4
For years, biologists have wondered how it is possible that not every person who carries a mutated gene expresses the trait or condition associated with the mutation. This common but poorly understood...
胞质异质性——人类肿瘤组织线粒体基因突变的普遍现象Heteroplasmy: A Common Phenomenon of Mitochondrial Genome Mutations in Human Tumor Tissues
线粒体基因 突变 异质性 同质性 肿瘤
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2008/1/6
为了探讨不同肿瘤组织中线粒体基因体细胞性突变的胞质异质性和同质性状态，利用32对重叠引物对149例肿瘤组织和匹配的正常组织的全线粒体基因进行PCR扩增，并同时进行时相温度梯度凝胶电泳扫描突变筛选，基因测序确定突变类型与异质状况。结果表明，不同肿瘤组织中线粒体基因体细胞性突变的异质率不同，口腔癌（65%）和食道癌（64%）具有较高的异质率，其次为乳腺癌（45.9%）。4种转换形式的发生频率Hm→Hm...