The brain as a Darwin Machine.

abstract：:Hydrophobic signal-sequences direct the transfer of secretory proteins across the inner membrane of prokaryotes and the endoplasmic reticulum membranes of eukaryotes. In mammalian cells, signal-sequences are recognized by the 54K protein (M(r) 54,000) of the signal recognition particle (SRP) which is believed to hold ...

journal_title：Nature

authors： Luirink J,High S,Wood H,Giner A,Tollervey D,Dobberstein B

更新日期：1992-10-22 00:00:00

abstract：:Pairwise recognition of splice sites as a result of a scanning mechanism is an attractive model to explain the coordination of vertebrate splicing. Such a mechanism would predict a polarity-of-site recognition in the scanned unit, but no evidence for a polarity gradient across introns has been found. We have suggested...

journal_title：Nature

authors： Niwa M,MacDonald CC,Berget SM

更新日期：1992-11-19 00:00:00

abstract：:The role of magnetic domains (and the walls between domains) in determining the electrical properties of ferromagnetic materials has been investigated in great detail for many years, not least because control over domains offers a means of manipulating electron spin to control charge transport in 'spintronic' devices....

journal_title：Nature

authors： Kummamuru RK,Soh YA

更新日期：2008-04-17 00:00:00

abstract：:Curare has long been regarded as a typical competitive antagonist of acetylcholine (ACh) at the vertebrate neuromuscular junction. Recently, however, it has been shown that curare can also block the channels opened by ACh at the frog neuromuscular junction as well as on rat and Aplysia neurones; moreover, curare is ab...

journal_title：Nature

authors： Trautmann A

更新日期：1982-07-15 00:00:00

abstract：:Solitons-solitary waves that maintain their shape as they propagate-occur as water waves in narrow canals, as light pulses in optical fibres and as quantum mechanical matter waves in superfluids and superconductors. Their highly nonlinear and localized nature makes them very sensitive probes of the medium in which the...

journal_title：Nature

authors： Yefsah T,Sommer AT,Ku MJ,Cheuk LW,Ji W,Bakr WS,Zwierlein MW

更新日期：2013-07-25 00:00:00

abstract：:The motility of the gastrointestinal tract consists of local, non-propulsive mixing (pendular or segmental) and propulsive (peristaltic) movements. It is generally considered that mixing movements are produced by intrinsic pacemakers which generate rhythmic contractions, and peristalsis by intrinsic excitatory and inh...

journal_title：Nature

authors： Stevens RJ,Publicover NG,Smith TK

更新日期：1999-05-06 00:00:00

abstract：:The dispersal of early humans from Africa by 1.75 Myr ago led to a marked expansion of their range, from the island of Flores in the east to the Iberian peninsula in the west. This range encompassed tropical forest, savannah and Mediterranean habitats, but has hitherto not been demonstrated beyond 45 degrees N. Until ...

journal_title：Nature

authors： Parfitt SA,Ashton NM,Lewis SG,Abel RL,Coope GR,Field MH,Gale R,Hoare PG,Larkin NR,Lewis MD,Karloukovski V,Maher BA,Peglar SM,Preece RC,Whittaker JE,Stringer CB

更新日期：2010-07-08 00:00:00

abstract：:Plants can have positive effects on each other. For example, the accumulation of nutrients, provision of shade, amelioration of disturbance, or protection from herbivores by some species can enhance the performance of neighbouring species. Thus the notion that the distributions and abundances of plant species are inde...

journal_title：Nature

authors： Callaway RM,Brooker RW,Choler P,Kikvidze Z,Lortie CJ,Michalet R,Paolini L,Pugnaire FI,Newingham B,Aschehoug ET,Armas C,Kikodze D,Cook BJ

更新日期：2002-06-20 00:00:00

abstract：:The human gene for the hepatic enzyme phenylalanine hydroxylase has been cloned and used to analyse the phenylalanine hydroxylase locus in the human genome. The detection of polymorphisms in this locus by several restriction enzymes has allowed feasibility studies of prenatal diagnosis of classical phenylketonuria and...

journal_title：Nature

authors： Woo SL,Lidsky AS,Güttler F,Chandra T,Robson KJ

更新日期：1983-11-10 00:00:00

abstract：:The innate immune defence of multicellular organisms against microbial pathogens requires cellular collaboration. Information exchange allowing immune cells to collaborate is generally attributed to soluble protein factors secreted by pathogen-sensing cells. Cytokines, such as type I interferons (IFNs), serve to alert...

journal_title：Nature

authors： Ablasser A,Schmid-Burgk JL,Hemmerling I,Horvath GL,Schmidt T,Latz E,Hornung V

更新日期：2013-11-28 00:00:00

abstract：:X chromosomes evolve differently from autosomes, but general governing principles have not emerged. For example, genes with male-biased expression are under-represented on the X chromosome of D. melanogaster, but are randomly distributed in the genome of Anopheles gambiae. In direct global profiling experiments using ...

journal_title：Nature

authors： Sturgill D,Zhang Y,Parisi M,Oliver B

更新日期：2007-11-08 00:00:00

abstract：:Barophilic bacteria inhabit the deep oceans, and the specific functional modifications and regulatory mechanisms which govern adaptation to hydrostatic pressure are beginning to be understood. For example, the rate of production of several proteins by some hydrothermal vent archaebacteria and the degree of saturation ...

journal_title：Nature

authors： Bartlett D,Wright M,Yayanos AA,Silverman M

更新日期：1989-11-30 00:00:00

abstract：: ...

journal_title：Nature

authors： Gewin V

更新日期：2018-10-01 00:00:00

abstract：:Novel biochemical processes using magnetic particles have been automated to provide a robotic system to perform processes for large-scale shotgun sequencing. ...

journal_title：Nature

authors： Watson A,Smaldon N,Lucke R,Hawkins T

更新日期：1993-04-08 00:00:00

abstract：: ...

journal_title：Nature

authors： Liao SE

更新日期：2018-11-01 00:00:00

abstract：:Spinocerebellar ataxia type 1 (SCA1) is one of several neurodegenerative disorders caused by an expansion of a polyglutamine tract. It is characterized by ataxia, progressive motor deterioration, and loss of cerebellar Purkinje cells. To understand the pathogenesis of SCA1, we examined the subcellular localization of ...

journal_title：Nature

authors： Skinner PJ,Koshy BT,Cummings CJ,Klement IA,Helin K,Servadio A,Zoghbi HY,Orr HT

更新日期：1997-10-30 00:00:00

abstract：:Signals elicited by binding of the T-cell antigen receptor and the CD4/CD8 co-receptor to major histocompatibility complex (MHC) molecules control the generation of CD4+ (helper) or CD8+ (cytotoxic) T cells from thymic precursors that initially express both co-receptor proteins. These precursors have unique, clonally ...

journal_title：Nature

authors： Yasutomo K,Doyle C,Miele L,Fuchs C,Germain RN

更新日期：2000-03-30 00:00:00

abstract：:A safe and effective vaccine against COVID-19 is urgently needed in quantities sufficient to immunise large populations. We report the preclinical development of two BNT162b vaccine candidates, which contain lipid-nanoparticle (LNP) formulated nucleoside-modified mRNA encoding SARS-CoV-2 spike glycoprotein-derived imm...

journal_title：Nature

authors： Vogel AB,Kanevsky I,Che Y,Swanson KA,Muik A,Vormehr M,Kranz LM,Walzer KC,Hein S,Güler A,Loschko J,Maddur MS,Ota-Setlik A,Tompkins K,Cole J,Lui BG,Ziegenhals T,Plaschke A,Eisel D,Dany SC,Fesser S,Erbar S,Bates

更新日期：2021-02-01 00:00:00

abstract：:The increasing ability to control light-matter interactions at the nanometre scale has improved the performance of semiconductor lasers in the past decade. The ultimate optimization is realized in semiconductor microcavities, in which strong coupling between quantum-well excitons and cavity photons gives rise to hybri...

journal_title：Nature

authors： Tsintzos SI,Pelekanos NT,Konstantinidis G,Hatzopoulos Z,Savvidis PG

更新日期：2008-05-15 00:00:00

abstract：:The National Institutes of Health's Recombinant DNA Advisory Committee (RAC) has approved a commercial proposal by Advanced Genetic Sciences Inc. to field-test recombinant ice-nucleating bacteria. Its decision came two weeks after a federal judge halted a similar trial by researchers from the University of California...

journal_title：Nature

authors： Budiansky S

更新日期：1984-06-07 00:00:00

abstract：:The T-cell immune response is directed against antigenic peptide fragments generated in intracellular compartments, the cytosol or the endocytic system. Peptides derived from cytosolic proteins, usually of biosynthetic origin, are presented efficiently to T-cell receptors by major histocompatibility complex (MHC) clas...

journal_title：Nature

authors： Deverson EV,Gow IR,Coadwell WJ,Monaco JJ,Butcher GW,Howard JC

更新日期：1990-12-20 00:00:00

abstract：:The most striking feature of the Sun's magnetic field is its cyclic behaviour. The number of sunspots, which are dark regions of strong magnetic field on the Sun's surface, varies with a period of about 11 years. Superposed on this cycle are secular changes that occur on timescales of centuries and events like the Mau...

journal_title：Nature

authors： Solanki SK,Schüssler M,Fligge M

更新日期：2000-11-23 00:00:00

abstract：:The ability to generate patient-specific human induced pluripotent stem cells (iPSCs) offers a new paradigm for modelling human disease and for individualizing drug testing. Congenital long QT syndrome (LQTS) is a familial arrhythmogenic syndrome characterized by abnormal ion channel function and sudden cardiac death....

journal_title：Nature

authors： Itzhaki I,Maizels L,Huber I,Zwi-Dantsis L,Caspi O,Winterstern A,Feldman O,Gepstein A,Arbel G,Hammerman H,Boulos M,Gepstein L

更新日期：2011-03-10 00:00:00

abstract：:Excitation-contraction coupling in skeletal muscle involves a voltage sensor in the plasma membrane which, in response to depolarization, causes an intracellular calcium-release channel to open. The skeletal isoform of the ryanodine receptor (RyR-1) functions as the Ca2+-release channel and the dihydropyridine recepto...

journal_title：Nature

authors： Nakai J,Dirksen RT,Nguyen HT,Pessah IN,Beam KG,Allen PD

更新日期：1996-03-07 00:00:00

abstract：:Long-term synaptic potentiation (LTP) is thought to be a key process in cortical synaptic network plasticity and memory formation. Hebbian forms of LTP depend on strong postsynaptic depolarization, which in many models is generated by action potentials that propagate back from the soma into dendrites. However, local d...

journal_title：Nature

authors： Gambino F,Pagès S,Kehayas V,Baptista D,Tatti R,Carleton A,Holtmaat A

更新日期：2014-11-06 00:00:00

abstract：:Elucidation of the nature of the gene interactions that underly the sterility of interspecific hybrids is important in evolutionary biology. The interactions between the heterospecific X and Y (or Z and W) chromosomes are often used as an explanation for two reasons. First, the fertility of the hybrids of the heteroga...

journal_title：Nature

authors： Johnson NA,Perez DE,Cabot EL,Hollocher H,Wu CI

更新日期：1992-08-27 00:00:00

abstract：:A decision is a commitment to a proposition or plan of action based on evidence and the expected costs and benefits associated with the outcome. Progress in a variety of fields has led to a quantitative understanding of the mechanisms that evaluate evidence and reach a decision. Several formalisms propose that a repre...

journal_title：Nature

authors： Resulaj A,Kiani R,Wolpert DM,Shadlen MN

更新日期：2009-09-10 00:00:00

abstract：:A single U leads to G transversion in the 3' consensus sequence AAUAAA of the adenovirus early region 1A gene was constructed and the effect of this mutation on processing of the 3' end of the nuclear early region 1A RNAs was analysed. The results demonstrate that the intact AAUAAA is not required for RNA polyadenylat...

journal_title：Nature

authors： Montell C,Fisher EF,Caruthers MH,Berk AJ

更新日期：1983-10-13 00:00:00

abstract：:Observing and controlling macroscopic quantum systems has long been a driving force in quantum physics research. In particular, strong coupling between individual quantum systems and mechanical oscillators is being actively studied1-3. Whereas both read-out of mechanical motion using coherent control of spin systems4-...

journal_title：Nature

authors： Delord T,Huillery P,Nicolas L,Hétet G

更新日期：2020-04-01 00:00:00

abstract：:The cortex organizes sensory information to enable discrimination and generalization1-4. As systematic representations of chemical odour space have not yet been described in the olfactory cortex, it remains unclear how odour relationships are encoded to place chemically distinct but similar odours, such as lemon and o...

journal_title：Nature

authors： Pashkovski SL,Iurilli G,Brann D,Chicharro D,Drummey K,Franks KM,Panzeri S,Datta SR

更新日期：2020-07-01 00:00:00