What is the origin of the oxygen we breathe, the hydrogen and oxygen (in form of water H2O) in rivers and oceans, the carbon in all organic compounds, the
Origin of the Earth's crust. Global Planet Change, 1: 57-81.Condie K C. Origin of the Earth's crust[J].Palaeogeography Palaeoclimatology Palaeoecology,1989.57-81.doi:10.1016/0031-0182(89)90184-3.Condie KC (1989) Origin of the Earth's crust. Palaeogeogr Palaeoclimatol Palaeoecol 75:57-81...
However, the reason behind this behavior is still not quite clear. In this paper we shed more light on the physical origin of the tail by regularizing the term which is usually ignored in the literature since it vanishes due to the action of the delta function. With this extra term the ...
Exquisite regulation of telomere length is essential for the preservation of the lifetime function and self-renewal of stem cells. However, multiple oncogenic pathways converge on induction of telomere attrition or telomerase overexpression and these events can by themselves trigger malignant transformation...
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On the basis of the results obtained in her laboratory, Beatriz Pogo introduced the term Human Mammary Tumor Virus (HMTV), to express in a synthetic but exhaustive way her convincement of the existence of a human homolog of MMTV [128]. 6. MMTV/HMTV Is Significantly Present All over the ...
Studies of micrometeorites in mid-Ordovician limestones and impact craters on Earth indicate that our planet witnessed a massive infall of ordinary L chondrite material about 466 million years ago1,2,3 that may have been at the origin of an Ordovician ice age and major turnover in ...
The long-term evolution of submarine canyons: insights from the NW Mediterranean[M]//CERAMICOLA S, AMARO T, AMBLAS D, et al. Submarine canyon dynamics in the Mediterranean and tributary seas:an integrated geological, oceanographic and biological perspective. Monaco: CIESM Publisher, 2015: 171-18...
Although tissue stem cells are central to organ homeostasis and regeneration, it remains unclear how they are induced during development, mainly because of the lack of markers that exclusively label prospective stem cells. Here we combine marker-independent long-term 3D live imaging and single-cell ...
The classical equation of motion is me dv dt = e c v × B + Fr (9) where the second term on the right is the radial force aris- ing from kinetic energy lowering in the expanding orbit. From Eq. (9), r × dv = e r × (v × B) dt mec (10) where r is in the plane ...