High-harmonic generation by resonant plasmon field enhancement.

abstract：:During formation of the neuromuscular junction, acetylcholine receptors in the endplate membrane become metabolically stabilized under neural control, their half-life increasing from about 1 day to about 10 days. The metabolic stability of the receptors is regulated by the electrical activity induced in the muscle by ...

journal_title：Nature

authors： Rotzler S,Schramek H,Brenner HR

更新日期：1991-01-24 00:00:00

abstract：:The McDonough strain of the feline sarcoma virus contains a transforming gene (v-fms) which contains partial nucleotide homology with proto-oncogenes encoding tyrosine kinases. One of the v-fms-encoded products, gp140fms, is a cell surface transmembrane glycoprotein that may function as a growth factor receptor. Altho...

journal_title：Nature

authors： Sariban E,Mitchell T,Kufe D

更新日期：1985-07-04 00:00:00

abstract：:Scrapie and related animal and human disorders are neurodegenerative diseases characterized by the formation of a modified, partly proteinase-resistant protein (PrP) of the host, which tends to aggregate as amyloid fibrils and accumulate in the brain of infected individuals. There is a general consensus that the patho...

journal_title：Nature

authors： Xi YG,Ingrosso L,Ladogana A,Masullo C,Pocchiari M

更新日期：1992-04-16 00:00:00

abstract：:The purified p21src protein of Harvey sarcoma virus shows a guanine nucleotide-binding activity and, in addition, at elevated temperature an autophosphorylating activity at a threonine residue using as phosphoryl donor GTP or dGTP but not ATP or dATP. These biochemical activities are unique among those associated with...

journal_title：Nature

authors： Shih TY,Papageorge AG,Stokes PE,Weeks MO,Scolnick EM

更新日期：1980-10-23 00:00:00

abstract：:It is a controversial issue whether 'real' movement, seen from the successive stimulation of retinal receptors by a moving image, and 'apparent' (phi) movement, which is produced by stimuli separated in space and time, are transmitted by the same or different neural channels. With this question in mind, we have devise...

journal_title：Nature

authors： Gregory RL,Harris JP

更新日期：1984-02-23 00:00:00

abstract：:DNA methylation is highly dynamic during mammalian embryogenesis. It is broadly accepted that the paternal genome is actively depleted of 5-methylcytosine at fertilization, followed by passive loss that reaches a minimum at the blastocyst stage. However, this model is based on limited data, and so far no base-resoluti...

journal_title：Nature

authors： Smith ZD,Chan MM,Mikkelsen TS,Gu H,Gnirke A,Regev A,Meissner A

更新日期：2012-03-28 00:00:00

abstract：:Primordial germ cells (PGCs) are first identifiable as a population of about eight alkaline phosphatase-positive cells in the 7.0 days postcoitum mouse embryo. During the next 6 days of development they proliferate to give rise to the 25,000 cells that will establish the meiotic population. Steel factor is required fo...

journal_title：Nature

authors： Resnick JL,Bixler LS,Cheng L,Donovan PJ

更新日期：1992-10-08 00:00:00

abstract：:Birds can perceive the reflectance of ultraviolet light by biological structures. Here we show that the skin of the mouth and body of starling nestlings substantially reflects light in the ultraviolet range and that young in which this reflectance is reduced will gain less mass than controls, despite low background le...

journal_title：Nature

authors： Jourdie V,Moureau B,Bennett AT,Heeb P

更新日期：2004-09-16 00:00:00

abstract：:A variety of observations indicate that mid-ocean ridges produce less crust at spreading rates below 20 mm yr(-1) (refs 1-3), reflecting changes in fundamental ridge processes with decreasing spreading rate. The nature of these changes, however, remains uncertain, with end-member explanations being decreasing shallow ...

journal_title：Nature

authors： Lizarralde D,Gaherty JB,Collins JA,Hirth G,Kim SD

更新日期：2004-12-09 00:00:00

abstract：:Since the discovery of the first exoplanets, it has been known that other planetary systems can look quite unlike our own. Until fairly recently, we have been able to probe only the upper range of the planet size distribution, and, since last year, to detect planets that are the size of Earth or somewhat smaller. Hith...

journal_title：Nature

authors： Barclay T,Rowe JF,Lissauer JJ,Huber D,Fressin F,Howell SB,Bryson ST,Chaplin WJ,Désert JM,Lopez ED,Marcy GW,Mullally F,Ragozzine D,Torres G,Adams ER,Agol E,Barrado D,Basu S,Bedding TR,Buchhave LA,Charbonneau D,Ch

更新日期：2013-02-28 00:00:00

abstract：:It is generally accepted that the specific function of a gene depends on its coding sequence. The three paired-box and homeobox genes paired (prd), gooseberry (gsb) and gooseberry neuro (gsbn) have distinct developmental functions in Drosophila embryogenesis. During the syncytial blastoderm stage, the pair-rule gene p...

journal_title：Nature

authors： Li X,Noll M

更新日期：1994-01-06 00:00:00

abstract：:Sensory experiences exert a powerful influence on the function and future performance of neuronal circuits in the mammalian neocortex. Restructuring of synaptic connections is believed to be one mechanism by which cortical circuits store information about the sensory world. Excitatory synaptic structures, such as dend...

journal_title：Nature

authors： Hofer SB,Mrsic-Flogel TD,Bonhoeffer T,Hübener M

更新日期：2009-01-15 00:00:00

abstract：:Common fragile sites have long been identified by cytogeneticists as chromosomal regions prone to breakage upon replication stress. They are increasingly recognized to be preferential targets for oncogene-induced DNA damage in pre-neoplastic lesions and hotspots for chromosomal rearrangements in various cancers. Commo...

journal_title：Nature

authors： Letessier A,Millot GA,Koundrioukoff S,Lachagès AM,Vogt N,Hansen RS,Malfoy B,Brison O,Debatisse M

更新日期：2011-02-03 00:00:00

abstract：:Since the discovery of graphene, the family of two-dimensional materials has grown, displaying a broad range of electronic properties. Recent additions include semiconductors with spin-valley coupling, Ising superconductors that can be tuned into a quantum metal, possible Mott insulators with tunable charge-density wa...

journal_title：Nature

authors： Huang B,Clark G,Navarro-Moratalla E,Klein DR,Cheng R,Seyler KL,Zhong D,Schmidgall E,McGuire MA,Cobden DH,Yao W,Xiao D,Jarillo-Herrero P,Xu X

更新日期：2017-06-07 00:00:00

abstract：:An important step towards understanding the molecular basis of the functional diversity of voltage-gated K+ channels in the mammalian brain has been the discovery of a family of genes encoding rat brain K+ channel-forming (RCK) proteins. All species of these RCK proteins form homomultimeric voltage-gated K+ channels w...

journal_title：Nature

authors： Ruppersberg JP,Schröter KH,Sakmann B,Stocker M,Sewing S,Pongs O

更新日期：1990-06-07 00:00:00

abstract：: ...

journal_title：Nature

authors： Kuhn JH,Wolf YI,Krupovic M,Zhang YZ,Maes P,Dolja VV,Koonin EV

更新日期：2019-02-01 00:00:00

abstract：:The antidiuretic effect of arginine vasopressin (AVP) is mediated by renal-type (V2) receptors linked to adenylyl cyclase. We report here the cloning of the rat kidney V2 AVP receptor complementary DNA that encodes a 370-amino-acid protein with a transmembrane topography characteristic of G protein-coupled receptors, ...

journal_title：Nature

authors： Lolait SJ,O'Carroll AM,McBride OW,Konig M,Morel A,Brownstein MJ

更新日期：1992-05-28 00:00:00

abstract：:Excitatory synaptic transmission in the central nervous system is mediated primarily by the release of glutamate from presynaptic terminals onto postsynaptic channels gated by N-methyl-D-aspartate (NMDA) and alpha-amino-3-hydroxy-5-methylisoxazole-4-propionate (AMPA) receptors. The myriad intracellular responses arisi...

journal_title：Nature

authors： Wang Y,Small DL,Stanimirovic DB,Morley P,Durkin JP

更新日期：1997-10-02 00:00:00

abstract：:The carotid body type I cell contains amines and has features, both morphological and cytochemical, which indicate that it may also produce a peptide. Many regulatory peptides are now known to be present in both central and peripheral tissues. In the periphery these neuropeptides occur in both classical endocrine (APU...

journal_title：Nature

authors： Wharton J,Polak JM,Pearse AG,McGregor GP,Bryant MG,Bloom SR,Emson PC,Bisgard GE,Will JA

更新日期：1980-03-20 00:00:00

abstract：:Fresnel lenses allow almost perfect imaging in widely different circumstances, but their focus is perfect only for a single wavelength. Wang et al. have shown how the effective bandpass may be widened for X-ray microscopy by using a compound diffractive/refractive lens near to an absorption edge. A compound lens has a...

journal_title：Nature

authors： Skinner G,Gorenstein P

更新日期：2003-11-20 00:00:00

abstract：:Fireflies communicate with each other by emitting yellow-green to yellow-orange brilliant light. The bioluminescence reaction, which uses luciferin, Mg-ATP and molecular oxygen to yield an electronically excited oxyluciferin species, is carried out by the enzyme luciferase. Visible light is emitted during relaxation o...

journal_title：Nature

authors： Nakatsu T,Ichiyama S,Hiratake J,Saldanha A,Kobashi N,Sakata K,Kato H

更新日期：2006-03-16 00:00:00

abstract：:Current human immunodeficiency virus-1 (HIV-1) vaccines elicit strain-specific neutralizing antibodies. However, cross-reactive neutralizing antibodies arise in approximately 20% of HIV-1-infected individuals, and details of their generation could provide a blueprint for effective vaccination. Here we report the isola...

journal_title：Nature

authors： Liao HX,Lynch R,Zhou T,Gao F,Alam SM,Boyd SD,Fire AZ,Roskin KM,Schramm CA,Zhang Z,Zhu J,Shapiro L,NISC Comparative Sequencing Program.,Mullikin JC,Gnanakaran S,Hraber P,Wiehe K,Kelsoe G,Yang G,Xia SM,Montefiori DC

更新日期：2013-04-25 00:00:00

abstract：:The plasma membrane-bound mammalian ras proteins of relative molecular mass 21,000 (ras p21) share biochemical and structural properties with other guanine nucleotide-binding regulatory proteins (G-proteins). Oncogenic ras p21 variants result from amino acid substitutions at specific positions that cause p21 to occur ...

journal_title：Nature

authors： Vogel US,Dixon RA,Schaber MD,Diehl RE,Marshall MS,Scolnick EM,Sigal IS,Gibbs JB

更新日期：1988-09-01 00:00:00

abstract：:The class II region of the human major histocompatibility complex (MHC) encodes a polymorphic set of cell surface glycoproteins involved in the regulation of the immune response. Each glycoprotein is a heterodimer composed of a alpha-chain of relative molecular mass (Mr) 34,000 (34 K) and a beta-chain of Mr = 28K. The...

journal_title：Nature

authors： Hardy DA,Bell JI,Long EO,Lindsten T,McDevitt HO

更新日期：1986-10-02 00:00:00

abstract：:Imperfect knowledge of the times at which 'snapshots' of a system are recorded degrades our ability to recover dynamical information, and can scramble the sequence of events. In X-ray free-electron lasers, for example, the uncertainty--the so-called timing jitter--between the arrival of an optical trigger ('pump') pul...

journal_title：Nature

authors： Fung R,Hanna AM,Vendrell O,Ramakrishna S,Seideman T,Santra R,Ourmazd A,Ourmazd A

更新日期：2016-04-28 00:00:00

abstract：:Lake Victoria, together with its satellite lakes, harbours roughly 200 endemic forms of cichlid fishes that are classified as 'haplochromines' and yet the lake system is less than a million years old. This 'flock' has attracted attention because of the possibility that it evolved within the lake from one ancestral spe...

journal_title：Nature

authors： Meyer A,Kocher TD,Basasibwaki P,Wilson AC

更新日期：1990-10-11 00:00:00

abstract：:It is known that glucose-induced depolarization of pancreatic B-cells is due to reduced membrane K+-permeability and is coupled to an increase in the rate of glycolysis, but there has been no direct evidence linking specific metabolic processes or products to the closing of membrane K+ channels. During patch-clamp stu...

journal_title：Nature

authors： Cook DL,Hales CN

更新日期：1984-09-20 00:00:00

abstract：:The detection of electron spins associated with single defects in solids is a critical operation for a range of quantum information and measurement applications under development. So far, it has been accomplished for only two defect centres in crystalline solids: phosphorus dopants in silicon, for which electrical rea...

journal_title：Nature

authors： Yin C,Rancic M,de Boo GG,Stavrias N,McCallum JC,Sellars MJ,Rogge S

更新日期：2013-05-02 00:00:00

abstract：:Demethylation at distinct lysine residues in histone H3 by lysine-specific demethylase 1 (LSD1) causes either gene repression or activation. As a component of co-repressor complexes, LSD1 contributes to target gene repression by removing mono- and dimethyl marks from lysine 4 of histone H3 (H3K4). In contrast, during ...

journal_title：Nature

authors： Metzger E,Imhof A,Patel D,Kahl P,Hoffmeyer K,Friedrichs N,Müller JM,Greschik H,Kirfel J,Ji S,Kunowska N,Beisenherz-Huss C,Günther T,Buettner R,Schüle R

更新日期：2010-04-01 00:00:00

abstract：:The fundamental properties of neutron stars provide a direct test of the equation of state of cold nuclear matter, a relationship between pressure and density that is determined by the physics of the strong interactions between the particles that constitute the star. The most straightforward method of determining thes...

journal_title：Nature

authors： Cottam J,Paerels F,Mendez M

更新日期：2002-11-07 00:00:00