Catálogo de revistas impresas de la biblioteca

Se encontraron 64 resultados.

Artículo:: Delayed build-up of Arctic ice sheets during 400,000-year minima in insolation variability
Autor:: Qingzhen Hao, Luo Wang, Frank Oldfield, Shuzhen Peng, Li Qin+ et al.
Resumen:: An East Asian winter monsoon proxy record using grain size variations in Chinese loess over the past 900,000?years shows that for up to 20,000 years after the interglacials at 400,000-year intervals, the weak monsoon winds maintain a mild, non-glacial climate at high northern latitudes.
Página:: 393
Sección:: LETTERS
Publicación:: Nature
Volúmen:: 490
Número:: 7420
Periodo:: 18 octubre 2012
ISSN:: 00280836
SrcID:: 00280836-2012-10-18.txt

Artículo:: Nonlinear dendritic processing determines angular tuning of barrel cortex neurons in vivo
Autor:: Maria Lavzin, Sophia Rapoport, Alon Polsky, Liora Garion & Jackie Schiller
Resumen:: In vivo whole-cell recordings combined with an intracellular N-methyl-D-aspartate receptor (NMDAR) blocker and membrane hyperpolarization are used to examine the contribution of dendritic NMDAR-dependent regenerative responses to the angular tuning of layer 4 neurons; the results show that active dendritic processing sharpens the sensory responses of cortical neurons in vivo.
Página:: 397
Sección:: LETTERS
Publicación:: Nature
Volúmen:: 490
Número:: 7420
Periodo:: 18 octubre 2012
ISSN:: 00280836
SrcID:: 00280836-2012-10-18.txt

Artículo:: Severe stress switches CRF action in the nucleus accumbens from appetitive to aversive
Autor:: Julia C. Lemos, Matthew J. Wanat, Jeffrey S. Smith, Beverly A. S. Reyes, Nick G. Hollon+ et al.
Resumen:: The neuropeptide corticotropin-releasing factor (CRF) acts in the nucleus accumbens of mice to increase dopamine release through coactivation of CRF receptor 1 (CRFR1) and CRFR2, but exposure to severe stress results in loss of this regulation and a switch in the reaction to CRF from appetitive to aversive.
Página:: 402
Sección:: LETTERS
Publicación:: Nature
Volúmen:: 490
Número:: 7420
Periodo:: 18 octubre 2012
ISSN:: 00280836
SrcID:: 00280836-2012-10-18.txt

Artículo:: Androgenetic haploid embryonic stem cells produce live transgenic mice
Autor:: Wei Li, Ling Shuai, Haifeng Wan, Mingzhu Dong, Meng Wang+ et al.
Resumen:: Mouse androgenetic haploid embryonic stem cell lines can be established by transferring sperm into an enucleated oocyte; the cells maintain haploidy and stable growth over 30?passages, express pluripotent markers, are able to differentiate into all three germ layers, contribute to germlines of chimaeras when injected into blastocysts and can produce fertile progeny that carry genetic modifications to the next generation.
Página:: 407
Sección:: LETTERS
Publicación:: Nature
Volúmen:: 490
Número:: 7420
Periodo:: 18 octubre 2012
ISSN:: 00280836
SrcID:: 00280836-2012-10-18.txt

Artículo:: Melanomas resist T-cell therapy through inflammation-induced reversible dedifferentiation
Autor:: Jennifer Landsberg, Judith Kohlmeyer, Marcel Renn, Tobias Bald, Meri Rogava+ et al.
Resumen:: A genetically engineered mouse model is used to determine the mechanism of acquired resistance to adoptive therapy with cytotoxic T cells specific for a melanocytic differentiation antigen; tumour necrosis factor (TNF)-? is identified as a crucial factor that causes reversible dedifferentiation of mouse and human melanoma cells.
Página:: 412
Sección:: LETTERS
Publicación:: Nature
Volúmen:: 490
Número:: 7420
Periodo:: 18 octubre 2012
ISSN:: 00280836
SrcID:: 00280836-2012-10-18.txt

Revistas en papel