منابع مشابه
Setting the spindle's compass
Setting the spindle's compass T he mammalian epidermis is a multi-layered, or stratifi ed, epi-thelium. Progenitor cells in the basal layer give rise to the outer layers by aligning their mitotic spindles perpendicularly to the basement membrane and dividing asymmetrically to produce one basal and one suprabasal cell. Poulson and Lechler reveal how progenitors decide to orient their spindles fo...
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Up to now the COMPASS experiment [1] contributed with the muon beam to precise measurements of the nucleon longitudinal momentum structure. A more complete nucleon description beyond collinear approximation includes the quark intrinsic momentum distributions which are described by the Transverse Momentum Dependent (TMD) Parton Distribution Functions (PDFs) and by Generalised Parton Distribution...
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The nucleon spin structure is studied at COMPASS via the measurement of the spin dependent properties of deep inelastic muon-deuteron scattering. Both inclusive and semi-inclusive observables are investigated, with the emphasis put on the latter. This allows to access, in particular, the gluon polarization (∆G/G) and the flavor decomposition of the quark helicity distributions. Results from mea...
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Research Board. The proposal consists of three main parts: 1) nucleon structure study via DrellYan process using a negative pion beam and transversely polarized proton target 2)nucleon structure study in exclusive positive and negative muon beam scattering off the unpolarized proton target 3)test of the chiral perturbative theory predictions via reactions of Primakoff scattering using hadron beam.
متن کاملSleep Spindles
The development of EEC sleep-spindles in prematurely-born and full-term infants was studied to test an hypothesized impact of experience (longer extrauterine existence) upon innate maturational factors (EEG development). The age of otiset of sleep spindles and achievement of mature spindle quality occurs approximately 4 weeks earlier in prematurely-born infants than in full-term infants. Sleep ...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2010
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.1915if