Firing patterns of motor units in normal rats.

abstract：:Species that depend on membership in social groups for survival exhibit changes in neuronal gene expression and behaviour when they face restricted social interactions or isolation1-3. Here we show that, across the lifespan of zebrafish (Danio rerio), social isolation specifically decreased the level of transcription ...

journal_title：Nature

authors： Anneser L,Alcantara IC,Gemmer A,Mirkes K,Ryu S,Schuman EM

更新日期：2020-12-01 00:00:00

abstract：:X-linked spinal and bulbar muscular atrophy (Kennedy's disease) is an adult-onset form of motorneuron disease which may be associated with signs of androgen insensitivity. We have now investigated whether the androgen receptor gene on the proximal long arm of the X chromosome is a candidate gene for this disease. In p...

journal_title：Nature

authors： La Spada AR,Wilson EM,Lubahn DB,Harding AE,Fischbeck KH

更新日期：1991-07-04 00:00:00

abstract：:A psychotherapeutic regimen that uses alternating bilateral sensory stimulation (ABS) has been used to treat post-traumatic stress disorder. However, the neural basis that underlies the long-lasting effect of this treatment-described as eye movement desensitization and reprocessing-has not been identified. Here we des...

journal_title：Nature

authors： Baek J,Lee S,Cho T,Kim SW,Kim M,Yoon Y,Kim KK,Byun J,Kim SJ,Jeong J,Shin HS

更新日期：2019-02-01 00:00:00

abstract：:NMDA (N-methyl-d-aspartate) receptors (NMDARs) are a principal subtype of excitatory ligand-gated ion channel with prominent roles in physiological and disease processes in the central nervous system. Recognition that glycine potentiates NMDAR-mediated currents as well as being a requisite co-agonist of the NMDAR subt...

journal_title：Nature

authors： Nong Y,Huang YQ,Ju W,Kalia LV,Ahmadian G,Wang YT,Salter MW

更新日期：2003-03-20 00:00:00

abstract：:The human T-cell leukaemia and differentiation antigen HTA 1 is defined by the monoclonal antibody NA1/34 (ref. 1) and also recognized by the monoclonal antibody OKT6. Like class I products of the human major histocompatibility complex, it has a glycosylated heavy (alpha) chain of approximately 45-50,000 molecular wei...

journal_title：Nature

authors： Kefford RF,Calabi F,Fearnley IM,Burrone OR,Milstein C

更新日期：1984-04-12 00:00:00

abstract：:The direct involvement of the pituitary-adrenal axis in birth has been well established, at least in sheep, and its removal prolongs pregnancy. As part of the process the fetal sheep adrenal grows rapidly during the 10-15 d prepartum and is associated with a large rise in the plasma corticosteroid concentration. This ...

journal_title：Nature

authors： Roebuck MM,Jones CT,Holland D,Silman R

更新日期：1980-04-17 00:00:00

abstract：:Owing to their scientific and technological importance, inorganic single crystals with highly reactive surfaces have long been studied. Unfortunately, surfaces with high reactivity usually diminish rapidly during the crystal growth process as a result of the minimization of surface energy. A typical example is titaniu...

journal_title：Nature

authors： Yang HG,Sun CH,Qiao SZ,Zou J,Liu G,Smith SC,Cheng HM,Lu GQ

更新日期：2008-05-29 00:00:00

abstract：:In 1975-79, joint expeditions from Yale University and the Geological Survey of Pakistan (YGSP) recovered fossil lorisids in the Siwalik Group of Pakistan from four localities, spanning a period before 10 Myr ago to about 7 Myr ago. In three of the localities, only isolated teeth or fragments were found, whereas the f...

journal_title：Nature

authors： Jacobs LL

更新日期：1981-02-12 00:00:00

abstract：:Large, actively swimming suspension feeders evolved several times in Earth's history, arising independently from groups as diverse as sharks, rays and stem teleost fishes, and in mysticete whales. However, animals occupying this niche have not been identified from the early Palaeozoic era. Anomalocarids, a group of st...

journal_title：Nature

authors： Vinther J,Stein M,Longrich NR,Harper DA

更新日期：2014-03-27 00:00:00

abstract：:Many eukaryotic cellular and viral proteins have a covalently attached myristoyl group at the amino terminus. One such protein is recoverin, a calcium sensor in retinal rod cells, which controls the lifetime of photoexcited rhodopsin by inhibiting rhodopsin kinase. Recoverin has a relative molecular mass of 23,000 (M[...

journal_title：Nature

authors： Ames JB,Ishima R,Tanaka T,Gordon JI,Stryer L,Ikura M

更新日期：1997-09-11 00:00:00

abstract：:In vertebrates the developing hindbrain is organized in segmental units. These units provide the primary grid for differentiation and axonal outgrowth. In the more anterior regions of the brain, however, the subdivisions remain more controversial. Cellular and molecular studies of the embryonic brain in lower vertebra...

journal_title：Nature

authors： Krauss S,Johansen T,Korzh V,Fjose A

更新日期：1991-09-19 00:00:00

abstract：:Optical-frequency synthesizers, which generate frequency-stable light from a single microwave-frequency reference, are revolutionizing ultrafast science and metrology, but their size, power requirement and cost need to be reduced if they are to be more widely used. Integrated-photonics microchips can be used in high-c...

journal_title：Nature

authors： Spencer DT,Drake T,Briles TC,Stone J,Sinclair LC,Fredrick C,Li Q,Westly D,Ilic BR,Bluestone A,Volet N,Komljenovic T,Chang L,Lee SH,Oh DY,Suh MG,Yang KY,Pfeiffer MHP,Kippenberg TJ,Norberg E,Theogarajan L,Vahala K

更新日期：2018-05-01 00:00:00

abstract：:A newly-constructed antibody-like molecule containing the gp120-binding domain of the receptor for human immunodeficiency virus blocks HIV-1 infection of T cells and monocytes. Its long plasma half-life, other antibody-like properties, and potential to block all HIV isolates, make it a good candidate for therapeutic u...

journal_title：Nature

authors： Capon DJ,Chamow SM,Mordenti J,Marsters SA,Gregory T,Mitsuya H,Byrn RA,Lucas C,Wurm FM,Groopman JE

更新日期：1989-02-09 00:00:00

abstract：:DNA winds about itself in a right-handed or left-handed fashion at several structural levels. The double helix is generally right-handed and is given a (+) sign by convention, whereas supercoiling of the helix axis is always (-) in the cell. The winding in higher -order forms such as knots and catenanes is unknown, an...

journal_title：Nature

authors： Krasnow MA,Stasiak A,Spengler SJ,Dean F,Koller T,Cozzarelli NR

更新日期：1983-08-11 00:00:00

abstract：:We have identified a cell type in 7-day-old rat optic nerve that differentiates into a fibrous astrocyte if cultured in the presence of fetal calf serum and into an oligodendrocyte if cultured in the absence of serum. In certain culture conditions some of these cells acquire a mixed phenotype, displaying properties of...

journal_title：Nature

authors： Raff MC,Miller RH,Noble M

更新日期：1983-06-02 00:00:00

abstract：:Phase-dependent forms of microscopy (such as phase contrast, interference, or polarization microscopy) have been used for many years; the amount of phase retardation produces images based mainly on index of refraction. We have developed a microscope that forms images that depend on small differences in extinction for ...

journal_title：Nature

authors： Mickols W,Maestre MF,Tinoco I Jr

更新日期：1987-07-30 00:00:00

abstract：:One of the earliest computational principles attributed to the cerebellum was the measurement of time. This idea was originally suggested on anatomical grounds, and was taken up again to explain some of the deficits in cerebellar patients. The contribution of the cerebellum to eye movements, in contrast, has tradition...

journal_title：Nature

authors： Thier P,Dicke PW,Haas R,Barash S

更新日期：2000-05-04 00:00:00

abstract：:There is growing recognition that mammalian cells produce many thousands of large intergenic transcripts. However, the functional significance of these transcripts has been particularly controversial. Although there are some well-characterized examples, most (>95%) show little evidence of evolutionary conservation and...

journal_title：Nature

authors： Guttman M,Amit I,Garber M,French C,Lin MF,Feldser D,Huarte M,Zuk O,Carey BW,Cassady JP,Cabili MN,Jaenisch R,Mikkelsen TS,Jacks T,Hacohen N,Bernstein BE,Kellis M,Regev A,Rinn JL,Lander ES

更新日期：2009-03-12 00:00:00

abstract：:The emission of isoprene from the leaves of forest trees is a fundamental component of biosphere-atmosphere interactions, controlling many aspects of photochemistry in the lower atmosphere. As almost all commercial agriforest species emit high levels of isoprene, proliferation of agriforest plantations has significant...

journal_title：Nature

authors： Rosenstiel TN,Potosnak MJ,Griffin KL,Fall R,Monson RK

更新日期：2003-01-16 00:00:00

abstract：:The University of California at Berkeley has announced the postponement of a planned experiment involving the field testing of bacteria genetically engineered to reduce frost damage to crops. The action came after Jeremy Rifkin, who had earlier filed suit against the National Institutes of Health after its Recombinan...

journal_title：Nature

authors： Budiansky S

更新日期：1983-10-13 00:00:00

abstract：: ...

journal_title：Nature

authors： Holmes J

更新日期：2018-10-01 00:00:00

abstract：:Some observations suggest that very massive stars experience extreme mass-loss episodes shortly before they explode as supernovae, as do several models. Establishing a causal connection between these mass-loss episodes and the final explosion would provide a novel way to study pre-supernova massive-star evolution. Her...

journal_title：Nature

authors： Ofek EO,Sullivan M,Cenko SB,Kasliwal MM,Gal-Yam A,Kulkarni SR,Arcavi I,Bildsten L,Bloom JS,Horesh A,Howell DA,Filippenko AV,Laher R,Murray D,Nakar E,Nugent PE,Silverman JM,Shaviv NJ,Surace J,Yaron O

更新日期：2013-02-07 00:00:00

abstract：:Recent work has identified a neuron with widespread projections to odour processing regions of the honeybee brain whose activity represents the reward value of gustatory stimuli. We have constructed a model of bee foraging in uncertain environments based on this type of neuron and a predictive form of hebbian synaptic...

journal_title：Nature

authors： Montague PR,Dayan P,Person C,Sejnowski TJ

更新日期：1995-10-26 00:00:00

abstract：: ...

journal_title：Nature

authors： Hershkovitz I

更新日期：2019-02-01 00:00:00

abstract：:In legumes, root nodule organogenesis is activated in response to morphogenic lipochitin oligosaccharides that are synthesized by bacteria, commonly known as rhizobia. Successful symbiotic interaction results in the formation of highly specialized organs called root nodules, which provide a unique environment for symb...

journal_title：Nature

authors： Krusell L,Madsen LH,Sato S,Aubert G,Genua A,Szczyglowski K,Duc G,Kaneko T,Tabata S,de Bruijn F,Pajuelo E,Sandal N,Stougaard J

更新日期：2002-11-28 00:00:00

abstract：:The alpha beta T-cell receptors (TCRs) react with complex ligands composed of peptides bound to major histocompatibility complex (MHC) proteins. In the absence of foreign antigens the peptides bound to MHC molecules come from the proteins of the host itself. Interactions between TCRs and these self-peptide-MHC ligands...

journal_title：Nature

authors： Kozono H,White J,Clements J,Marrack P,Kappler J

更新日期：1994-05-12 00:00:00

abstract：:We have shown previously that chemically skinned fibre bundles from scallop muscle can be desensitized to the action of calcium by the removal of the regulatory light chains of myosin and that sensitivity can be restored by the re-addition of scallop light chains. We have now confirmed these results and extended our o...

journal_title：Nature

authors： Simmons RM,Szent-Györgyi AG

更新日期：1980-08-07 00:00:00

abstract：:A combination of biochemistry in animal cell-free systems and genetics in yeast is revealing the molecular machinery of the secretory pathway of eukaryotes. Transporting vesicles have a simple coat structure and employ a general mechanism for fusion that is conserved in evolution. ...

journal_title：Nature

authors： Rothman JE,Orci L

更新日期：1992-01-30 00:00:00

abstract：:An ongoing challenge in chemical research is to design catalysts that select the outcomes of the reactions of complex molecules. Chemists rely on organocatalysts or transition metal catalysts to control stereoselectivity, regioselectivity and periselectivity (selectivity among possible pericyclic reactions). Nature ac...

journal_title：Nature

authors： Ohashi M,Jamieson CS,Cai Y,Tan D,Kanayama D,Tang MC,Anthony SM,Chari JV,Barber JS,Picazo E,Kakule TB,Cao S,Garg NK,Zhou J,Houk KN,Tang Y

更新日期：2020-10-01 00:00:00

abstract：:The 3-dimethylsulphoniopropionate (DMSP) produced by marine algae is the main biogenic precursor of atmospheric dimethylsulphide (DMS). This biogenic DMS, formed by bacterial and algal degradation of DMSP, contributes about 1.5 x 10(13) g of sulphur to the atmosphere annually, and plays a major part in the global sulp...

journal_title：Nature

authors： Gage DA,Rhodes D,Nolte KD,Hicks WA,Leustek T,Cooper AJ,Hanson AD

更新日期：1997-06-26 00:00:00