Mesostructured germanium with cubic pore symmetry.

abstract：:The Borrmann effect-a dramatic increase in transparency to X-ray beams-is observed when X-rays satisfying Bragg's law diffract through a perfect crystal. The minimization of absorption seen in the Borrmann effect has been explained by noting that the electric field of the X-ray beam approaches zero amplitude at the cr...

journal_title：Nature

authors： Pettifer RF,Collins SP,Laundy D

更新日期：2008-07-10 00:00:00

abstract：:Galaxies had their most significant impact on the Universe when they assembled their first generations of stars. Energetic photons emitted by young, massive stars in primeval galaxies ionized the intergalactic medium surrounding their host galaxies, cleared sightlines along which the light of the young galaxies could ...

journal_title：Nature

authors： Lehnert MD,Nesvadba NP,Cuby JG,Swinbank AM,Morris S,Clément B,Evans CJ,Bremer MN,Basa S

更新日期：2010-10-21 00:00:00

abstract：:The pathways that control insulin secretion and regulate pancreatic beta-cell mass are crucial in the development of diabetes mellitus. Maturity-onset diabetes of the young comprises a number of single-gene disorders affecting pancreatic beta-cell function, and the consequences of mutations in these genes are so serio...

journal_title：Nature

authors： Bell GI,Polonsky KS

更新日期：2001-12-13 00:00:00

abstract：:Alzheimer's disease (AD) is characterized by deposition of amyloid-β (Aβ) plaques and neurofibrillary tangles in the brain, accompanied by synaptic dysfunction and neurodegeneration. Antibody-based immunotherapy against Aβ to trigger its clearance or mitigate its neurotoxicity has so far been unsuccessful. Here we rep...

journal_title：Nature

authors： Sevigny J,Chiao P,Bussière T,Weinreb PH,Williams L,Maier M,Dunstan R,Salloway S,Chen T,Ling Y,O'Gorman J,Qian F,Arastu M,Li M,Chollate S,Brennan MS,Quintero-Monzon O,Scannevin RH,Arnold HM,Engber T,Rhodes K,Ferr

更新日期：2016-09-01 00:00:00

abstract：:A first step towards somatic hybridization in plants has been achieved. Protoplasts have been isolated and seen to fuse. ...

journal_title：Nature

authors： Power JB,Cummins SE,Cocking EC

更新日期：1970-03-14 00:00:00

abstract：:In the brain, hippocampal pyramidal cells use temporal as well as rate coding to signal spatial aspects of the animal's environment or behaviour. The temporal code takes the form of a phase relationship to the concurrent cycle of the hippocampal electroencephalogram theta rhythm. These two codes could each represent a...

journal_title：Nature

authors： Huxter J,Burgess N,O'Keefe J

更新日期：2003-10-23 00:00:00

abstract：:The Gram-negative bacterium Yersinia pestis is the causative agent of the systemic invasive infectious disease classically referred to as plague, and has been responsible for three human pandemics: the Justinian plague (sixth to eighth centuries), the Black Death (fourteenth to nineteenth centuries) and modern plague ...

journal_title：Nature

authors： Parkhill J,Wren BW,Thomson NR,Titball RW,Holden MT,Prentice MB,Sebaihia M,James KD,Churcher C,Mungall KL,Baker S,Basham D,Bentley SD,Brooks K,Cerdeño-Tárraga AM,Chillingworth T,Cronin A,Davies RM,Davis P,Dougan G,

更新日期：2001-10-04 00:00:00

abstract：:The brightness of type Ia supernovae, and their homogeneity as a class, makes them powerful tools in cosmology, yet little is known about the progenitor systems of these explosions. They are thought to arise when a white dwarf accretes matter from a companion star, is compressed and undergoes a thermonuclear explosion...

journal_title：Nature

authors： Ruiz-Lapuente P,Comeron F,Méndez J,Canal R,Smartt SJ,Filippenko AV,Kurucz RL,Chornock R,Foley RJ,Stanishev V,Ibata R

更新日期：2004-10-28 00:00:00

abstract：:Endocytosis has long been thought of as simply a way for cells to internalize nutrients and membrane-associated molecules. But an explosive growth in knowledge has given a new dimension to our understanding of this process. It now seems that endocytosis is a master organizer of signalling circuits, with one of its mai...

journal_title：Nature

authors： Scita G,Di Fiore PP

更新日期：2010-01-28 00:00:00

abstract：:Electric-field-induced charge separation (polarization) is the most fundamental manifestation of the interaction of light with matter and a phenomenon of great technological relevance. Nonlinear optical polarization produces coherent radiation in spectral ranges inaccessible by lasers and constitutes the key to ultima...

journal_title：Nature

authors： Sommer A,Bothschafter EM,Sato SA,Jakubeit C,Latka T,Razskazovskaya O,Fattahi H,Jobst M,Schweinberger W,Shirvanyan V,Yakovlev VS,Kienberger R,Yabana K,Karpowicz N,Schultze M,Krausz F

更新日期：2016-06-02 00:00:00

abstract：: ...

journal_title：Nature

authors： Larrimore KE,Rancati G

更新日期：2019-02-01 00:00:00

abstract：:Hydrothermal vents are ephemeral because of frequent volcanic and tectonic activities associated with crust formation. Although the larvae of hydrothermal vent fauna can rapidly colonize new vent sites separated by tens to hundreds of kilometres, the mechanisms by which these larvae disperse and recruit are not unders...

journal_title：Nature

authors： Marsh AG,Mullineaux LS,Young CM,Manahan DT

更新日期：2001-05-03 00:00:00

abstract：:A major problem in the elucidation of the molecular mechanisms governing development is the distinction between direct and indirect regulatory interactions among developmental control genes. In vivo studies have indicated that the Drosophila segmentation gene fushi tarazu (ftz) directly or indirectly autoregulates its...

journal_title：Nature

authors： Schier AF,Gehring WJ

更新日期：1992-04-30 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：:Methane is a potent greenhouse gas that is produced in significant quantities by aerobic marine organisms. These bacteria apparently catalyse the formation of methane through the cleavage of the highly unreactive carbon-phosphorus bond in methyl phosphonate (MPn), but the biological or terrestrial source of this compo...

journal_title：Nature

authors： Kamat SS,Williams HJ,Dangott LJ,Chakrabarti M,Raushel FM

更新日期：2013-05-02 00:00:00

abstract：:Spermiogenesis is a complex process by which postmeiotic male germ cells differentiate into mature spermatozoa. This process involves remarkable structural and biochemical changes including nuclear DNA compaction and acrosome formation. Transcription activator CREM (cyclic AMP-responsive element modulator) is highly e...

journal_title：Nature

authors： Nantel F,Monaco L,Foulkes NS,Masquilier D,LeMeur M,Henriksén K,Dierich A,Parvinen M,Sassone-Corsi P

更新日期：1996-03-14 00:00:00

abstract：:Water masers are found in dense molecular clouds closely associated with supermassive black holes at the centres of active galaxies. On the basis of the understanding of the local water-maser luminosity function, it was expected that masers at intermediate and high redshifts would be extremely rare. However, galaxies ...

journal_title：Nature

authors： Impellizzeri CM,McKean JP,Castangia P,Roy AL,Henkel C,Brunthaler A,Wucknitz O

更新日期：2008-12-18 00:00:00

abstract：:At the molecular level, muscle contraction is the result of cyclic interaction between myosin crossbridges, which extend from the thick filament, and the thin filament, which consists mainly of actin. The energy for work done by a single crossbridge during a cycle of attachment, generation of force, shortening and det...

journal_title：Nature

authors： Lombardi V,Piazzesi G,Linari M

更新日期：1992-02-13 00:00:00

abstract：:It has long been contentious whether the large representation of the fovea in the primate visual cortex (V1) indicates a selective magnification of this part of the retina, or whether it merely reflects the density of retinal ganglion cells. The measurement of the retinal ganglion-cell density is complicated by latera...

journal_title：Nature

authors： Wässle H,Grünert U,Röhrenbeck J,Boycott BB

更新日期：1989-10-19 00:00:00

abstract：:The discovery of Higgs-boson decays in a background of standard-model processes was assisted by machine learning methods. The classifiers used to separate signals such as these from background are trained using highly unerring but not completely perfect simulations of the physical processes involved, often resulting i...

journal_title：Nature

authors： Mott A,Job J,Vlimant JR,Lidar D,Spiropulu M

更新日期：2017-10-18 00:00:00

abstract：:Understanding brain circuits begins with an appreciation of their component parts - the cells. Although GABAergic interneurons are a minority population within the brain, they are crucial for the control of inhibition. Determining the diversity of these interneurons has been a central goal of neurobiologists, but this...

journal_title：Nature

authors： Kepecs A,Fishell G

更新日期：2014-01-16 00:00:00

abstract：:Humans and cats can localize a sound source accurately if its spectrum is fairly broad and flat, as is typical of most natural sounds. However, if sounds are filtered to reduce the width of the spectrum, they result in illusions of sources that are very different from the actual locations, particularly in the up/down ...

journal_title：Nature

authors： Xu L,Furukawa S,Middlebrooks JC

更新日期：1999-06-17 00:00:00

abstract：:The multi-disciplinary role of intermediate energy proton accelerators in pure and applied nuclear physics is discussed with particular reference to the experimental programmes at LAMPF (Los Alamos Meson Physics Facility) and SIN (Swiss Institute for Nuclear Research, Zurich). ...

journal_title：Nature

authors： Davies JD,Batty CJ,Green K

更新日期：1977-12-22 00:00:00

abstract：:Cutaneous malignant melanoma is a highly aggressive and frequently chemoresistant cancer, the incidence of which continues to rise. Epidemiological studies show that the major aetiological melanoma risk factor is ultraviolet (UV) solar radiation, with the highest risk associated with intermittent burning doses, especi...

journal_title：Nature

authors： Zaidi MR,Davis S,Noonan FP,Graff-Cherry C,Hawley TS,Walker RL,Feigenbaum L,Fuchs E,Lyakh L,Young HA,Hornyak TJ,Arnheiter H,Trinchieri G,Meltzer PS,De Fabo EC,Merlino G

更新日期：2011-01-27 00:00:00

abstract：:The microtubule cytoskeleton is essential to cell morphogenesis. Growing microtubule plus ends have emerged as dynamic regulatory sites in which specialized proteins, called plus-end-binding proteins (+TIPs), bind and regulate the proper functioning of microtubules. However, the molecular mechanism of plus-end associa...

journal_title：Nature

authors： Bieling P,Laan L,Schek H,Munteanu EL,Sandblad L,Dogterom M,Brunner D,Surrey T

更新日期：2007-12-13 00:00:00

abstract：:Mutations of the presenilin-1 gene are a major cause of familial early-onset Alzheimer's disease. Presenilin-1 can associate with members of the catenin family of signalling proteins, but the significance of this association is unknown. Here we show that presenilin-1 forms a complex with beta-catenin in vivo that incr...

journal_title：Nature

authors： Zhang Z,Hartmann H,Do VM,Abramowski D,Sturchler-Pierrat C,Staufenbiel M,Sommer B,van de Wetering M,Clevers H,Saftig P,De Strooper B,He X,Yankner BA

更新日期：1998-10-15 00:00:00

abstract：:CDKN2A (INK4a/ARF) is frequently disrupted in various types of human cancer, and germline mutations of this locus can confer susceptibility to melanoma and other tumours. However, because CDKN2A encodes two distinct cell cycle inhibitory proteins, p16INK4a and p14ARF (p19Arf in mice), the mechanism of tumour suppressi...

journal_title：Nature

authors： Krimpenfort P,Quon KC,Mooi WJ,Loonstra A,Berns A

更新日期：2001-09-06 00:00:00

abstract：:Systems governed by time reversible equations of motion often give rise to irreversible behaviour. The transition from reversible to irreversible behaviour is fundamental to statistical physics, but has not been observed experimentally in many-body systems. The flow of a newtonian fluid at low Reynolds number can be r...

journal_title：Nature

authors： Pine DJ,Gollub JP,Brady JF,Leshansky AM

更新日期：2005-12-15 00:00:00

abstract：:Why infer evolution when you can watch it happen in real time? This is the basic premise of using populations of fast-replicating microorganisms in test tubes to study evolution. The approach, known as experimental evolution, has provided a way of testing many of the key hypotheses that arose from the modern evolution...

journal_title：Nature

authors： Buckling A,Craig Maclean R,Brockhurst MA,Colegrave N

更新日期：2009-02-12 00:00:00

abstract：:Ecdysone in Drosophila has been a paradigm for steroid hormones since its ability to induce gene activity directly was demonstrated by its effects on moulting and polytene chromosome puffing. The ecdysone receptor (EcR) was recently confirmed as a member of the nuclear receptor superfamily by cloning and characterizat...

journal_title：Nature

authors： Thomas HE,Stunnenberg HG,Stewart AF

更新日期：1993-04-01 00:00:00