Abrupt recent shift in delta 13C and delta 15N values in Adélie penguin eggshell in Antarctica [0.03%]
南极阿德利企鹅蛋壳中的碳、氮同位素值的近期剧变
Steven D Emslie,William P Patterson
Steven D Emslie
Stable isotope values of carbon (delta13C) and nitrogen (delta15N) in blood, feathers, eggshell, and bone have been used in seabird studies since the 1980s, providing a valuable source of information on diet, foraging patterns, and migrator...
Interaction of herpes simplex virus RNase with VP16 and VP22 is required for the accumulation of the protein but not for accumulation of mRNA [0.03%]
单纯疱疹病毒RNase与VP16和VP22相互作用以积累蛋白但并非以积累mRNA所必需
Brunella Taddeo,Maria Teresa Sciortino,Weiran Zhang et al.
Brunella Taddeo et al.
The virion host shutoff (vhs) protein encoded by the U(L)41 gene of herpes simplex virus 1 is an endoribonuclease. The enzyme is introduced into the cell during unpackaging of the virion upon entry and selectively degrades mRNA for several ...
Filopodia act as phagocytic tentacles and pull with discrete steps and a load-dependent velocity [0.03%]
丝状伪足充当吞噬作用的触角并以依赖负载的方式分步牵拉细胞
Holger Kress,Ernst H K Stelzer,Daniela Holzer et al.
Holger Kress et al.
Filopodia are thin, spike-like cell surface protrusions containing bundles of parallel actin filaments. So far, filopodial dynamics has mainly been studied in the context of cell motility on coverslip-adherent filopodia by using fluorescenc...
GluR7 is an essential subunit of presynaptic kainate autoreceptors at hippocampal mossy fiber synapses [0.03%]
GluR7是海马苔藓纤维突触前烟碱自受体的必要亚基
Paulo S Pinheiro,David Perrais,Françoise Coussen et al.
Paulo S Pinheiro et al.
Presynaptic ionotropic glutamate receptors are emerging as key players in the regulation of synaptic transmission. Here we identify GluR7, a kainate receptor (KAR) subunit with no known function in the brain, as an essential subunit of pres...
Matthew P Scott
Matthew P Scott
Julie A Champion,Yogesh K Katare,Samir Mitragotri
Julie A Champion
Polymeric micro- and nanoparticles play a central role in varied applications such as drug delivery, medical imaging, and advanced materials, as well as in fundamental studies in fields such as microfluidics and nanotechnology. Functional b...
Large-scale reorganization of the tonotopic map in mouse auditory midbrain revealed by MRI [0.03%]
小鼠脑干听觉核团的宏观结构磁共振成像研究
Xin Yu,Dan H Sanes,Orlando Aristizabal et al.
Xin Yu et al.
The cortex is thought to be the primary site of sensory plasticity, particularly during development. Here, we report that large-scale reorganization of the mouse auditory midbrain tonotopic map is induced by a specific sound-rearing environ...
Linda Perry,Kent V Flannery
Linda Perry
Excavations at Guilá Naquitz and Silvia's Cave, two dry rockshelters near Mitla, Oaxaca, Mexico, yielded the remains of 122 chili peppers dating to the period A.D. 600-1521. The chilies can be assigned to at least 10 cultivars, all belongi...
François O Laforge,James Carpino,Susan A Rotenberg et al.
François O Laforge et al.
The ability to manipulate ultrasmall volumes of liquids is essential in such diverse fields as cell biology, microfluidics, capillary chromatography, and nanolithography. In cell biology, it is often necessary to inject material of high mol...
Protein roadblocks and helix discontinuities are barriers to the initiation of mismatch repair [0.03%]
蛋白质路障和螺旋不连续性是错配修复起始的障碍
Anna Pluciennik,Paul Modrich
Anna Pluciennik
The hemimethylated d(GATC) sequence that directs Escherichia coli mismatch repair can reside on either side of a mismatch at a separation distance of 1,000 bp or more. Initiation of repair involves the mismatch-, MutS-, and MutL-dependent a...