Efficient quantum memory for light.

abstract：:In 1994, two independent groups extracted DNA from several Pleistocene epoch mammoths and noted differences among individual specimens. Subsequently, DNA sequences have been published for a number of extinct species. However, such ancient DNA is often fragmented and damaged, and studies to date have typically focused ...

journal_title：Nature

authors： Miller W,Drautz DI,Ratan A,Pusey B,Qi J,Lesk AM,Tomsho LP,Packard MD,Zhao F,Sher A,Tikhonov A,Raney B,Patterson N,Lindblad-Toh K,Lander ES,Knight JR,Irzyk GP,Fredrikson KM,Harkins TT,Sheridan S,Pringle T,Schuste

更新日期：2008-11-20 00:00:00

abstract：:The ability of the immune system to eliminate and shape the immunogenicity of tumours defines the process of cancer immunoediting1. Immunotherapies such as those that target immune checkpoint molecules can be used to augment immune-mediated elimination of tumours and have resulted in durable responses in patients with...

journal_title：Nature

authors： Alspach E,Lussier DM,Miceli AP,Kizhvatov I,DuPage M,Luoma AM,Meng W,Lichti CF,Esaulova E,Vomund AN,Runci D,Ward JP,Gubin MM,Medrano RFV,Arthur CD,White JM,Sheehan KCF,Chen A,Wucherpfennig KW,Jacks T,Unanue ER,Ar

更新日期：2019-10-01 00:00:00

abstract：:Tumour necrosis factor-alpha (TNF-alpha) is a potent pro-inflammatory and immunomodulatory cytokine implicated in inflammatory conditions such as rheumatoid arthritis, Crohn's disease, multiple sclerosis and the cachexia associated with cancer or human immunodeficiency virus infection. TNF-alpha is initially expressed...

journal_title：Nature

authors： Gearing AJ,Beckett P,Christodoulou M,Churchill M,Clements J,Davidson AH,Drummond AH,Galloway WA,Gilbert R,Gordon JL

更新日期：1994-08-18 00:00:00

abstract：:Quantum criticality is associated with a system composed of a nearly infinite number of interacting quantum degrees of freedom at zero temperature, and it implies that the system looks on average the same regardless of the time- and length scale on which it is observed. Electrons on the atomic scale do not exhibit suc...

journal_title：Nature

authors： van der Marel D,Molegraaf HJ,Zaanen J,Nussinov Z,Carbone F,Damascelli A,Eisaki H,Greven M,Kes PH,Li M

更新日期：2003-09-18 00:00:00

abstract：:Replication of multipotential stem cells in long-term murine bone marrow cell culture is known to depend on the development of an adherent stromal cell layer. In these conditions, restricted haematopoietic progenitor cells have also been generated for up to several months1-3. However, maturation is observed only in th...

journal_title：Nature

authors： Wendling F,Shreeve MM,McLeod DL,Axelrad AA

更新日期：1983-10-13 00:00:00

abstract：:Animal microRNAs (miRNAs) regulate gene expression by inhibiting translation and/or by inducing degradation of target messenger RNAs. It is unknown how much translational control is exerted by miRNAs on a genome-wide scale. We used a new proteomic approach to measure changes in synthesis of several thousand proteins i...

journal_title：Nature

authors： Selbach M,Schwanhäusser B,Thierfelder N,Fang Z,Khanin R,Rajewsky N

更新日期：2008-09-04 00:00:00

abstract：:Susceptibility to some human diseases is linked, albeit weakly, to major transplantation antigens (HLA) encoded by the major histocompatibility gene complex (MHC). Here we have studied MHC/disease association in inbred strains of mice after intracerebral (i.c.) injection of lymphocytic choriomeningitis virus (LCMV). T...

journal_title：Nature

authors： Zinkernagel RM,Pfau CJ,Hengartner H,Althage A

更新日期：1985-08-29 00:00:00

abstract：:Cyclic GMP has been implicated as a messenger molecule involved in visual transduction. Photoexcited rhodopsin (R*) binds to a multisubunit membrane protein called transducin (T) and stimulates the exchange of a bound GDP molecule for GTP. This leads to the release of the alpha-subunit of T with bound GTP (T alpha-GTP...

journal_title：Nature

authors： Vuong TM,Chabre M,Stryer L

更新日期：1984-10-18 00:00:00

abstract：:Throughout the lifespan of a plant, which in some cases can last more than one thousand years, the stem cell niches in the root and shoot apical meristems provide cells for the formation of complete root and shoot systems, respectively. Both niches are superficially different and it has remained unclear whether common...

journal_title：Nature

authors： Sarkar AK,Luijten M,Miyashima S,Lenhard M,Hashimoto T,Nakajima K,Scheres B,Heidstra R,Laux T

更新日期：2007-04-12 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：:Knowledge of the three-dimensional structures of proteins and other biological macromolecules often aids understanding of how they perform complicated tasks in the cell. Because many such tasks involve the cleavage or formation of chemical bonds, structural characterization at the atomic level is most useful. Developm...

journal_title：Nature

authors： Fernandez-Leiro R,Scheres SH

更新日期：2016-09-15 00:00:00

abstract：:The cellular response to hypoxia is critical for cell survival and is fine-tuned to allow cells to recover from hypoxic stress and adapt to heterogeneous or fluctuating oxygen levels. The hypoxic response is mediated by the α-subunit of the transcription factor HIF-1 (HIF-1α), which interacts through its intrinsically...

journal_title：Nature

authors： Berlow RB,Dyson HJ,Wright PE

更新日期：2017-03-16 00:00:00

abstract：:Non-ribosomal peptide synthetase (NRPS) mega-enzyme complexes are modular assembly lines that are involved in the biosynthesis of numerous peptide metabolites independently of the ribosome. The multiple interactions between catalytic domains within the NRPS machinery are further complemented by additional interactions...

journal_title：Nature

authors： Haslinger K,Peschke M,Brieke C,Maximowitsch E,Cryle MJ

更新日期：2015-05-07 00:00:00

abstract：:The function and nature of inhibition of neurons in the visual cortex have been the focus of both experimental and theoretical investigations. There are two ways in which inhibition can suppress synaptic excitation. In hyperpolarizing inhibition, negative and positive currents sum linearly to produce a net change in m...

journal_title：Nature

authors： Borg-Graham LJ,Monier C,Frégnac Y

更新日期：1998-05-28 00:00:00

abstract：:Recent studies have shown that initial sensitization to airborne environmental allergens occurs typically in early childhood, but subsequent progression to persistent atopic asthma, which may not manifest for several years, is restricted to only a subset of atopics. The key to establishing the link between atopy and a...

journal_title：Nature

authors： Holt PG,Macaubas C,Stumbles PA,Sly PD

更新日期：1999-11-25 00:00:00

abstract：:Cancer cells hijack and remodel existing metabolic pathways for their benefit. Argininosuccinate synthase (ASS1) is a urea cycle enzyme that is essential in the conversion of nitrogen from ammonia and aspartate to urea. A decrease in nitrogen flux through ASS1 in the liver causes the urea cycle disorder citrullinaemia...

journal_title：Nature

authors： Rabinovich S,Adler L,Yizhak K,Sarver A,Silberman A,Agron S,Stettner N,Sun Q,Brandis A,Helbling D,Korman S,Itzkovitz S,Dimmock D,Ulitsky I,Nagamani SC,Ruppin E,Erez A

更新日期：2015-11-19 00:00:00

abstract：:Superantigens bind class II major histocompatibility proteins and stimulate powerful proliferative responses of T lymphocytes bearing particular V beta sequences as part of their alpha beta antigen receptor. Exogenous bacterial superantigens are responsible for food poisoning and toxic shock syndrome. Murine virus-enc...

journal_title：Nature

authors： Lafon M,Lafage M,Martinez-Arends A,Ramirez R,Vuillier F,Charron D,Lotteau V,Scott-Algara D

更新日期：1992-08-06 00:00:00

abstract：:During early mammalian development, as the pluripotent cells that give rise to all of the tissues of the body proliferate and expand in number, they pass through transition states marked by a stepwise restriction in developmental potential and by changes in the expression of key regulatory genes. Recent findings show ...

journal_title：Nature

authors： Pera MF,Tam PP

更新日期：2010-06-10 00:00:00

abstract：:The origins of the building blocks of the Solar System can be studied using the isotopic composition of early planetary and meteoritic material. Oxygen isotopes in planetary materials show variations at the per cent level that are not related to the mass of the isotopes; rather, they result from the mixture of compone...

journal_title：Nature

authors： Aléon J,Robert F,Duprat J,Derenne S

更新日期：2005-09-15 00:00:00

abstract：:Homozygosity has long been associated with rare, often devastating, Mendelian disorders, and Darwin was one of the first to recognize that inbreeding reduces evolutionary fitness. However, the effect of the more distant parental relatedness that is common in modern human populations is less well understood. Genomic da...

journal_title：Nature

authors： Joshi PK,Esko T,Mattsson H,Eklund N,Gandin I,Nutile T,Jackson AU,Schurmann C,Smith AV,Zhang W,Okada Y,Stančáková A,Faul JD,Zhao W,Bartz TM,Concas MP,Franceschini N,Enroth S,Vitart V,Trompet S,Guo X,Chasman DI,

更新日期：2015-07-23 00:00:00

abstract：:In the response of T cells to foreign antigens, the ligand for the T cell alpha/beta receptor is presented on a cell surface as a fragment of antigen complexed to one of the membrane molecules encoded in the major histocompatibility complex (MHC). The receptor apparently interacts via its variable elements (V beta, D ...

journal_title：Nature

authors： Marrack P,Kappler J

更新日期：1988-04-28 00:00:00

abstract：:Leks have traditionally been considered as arenas where males compete to attract females and secure matings. Thus, direct fitness benefits mediated through competition between males to fertilize females have been considered to be the primary force driving the evolution of lekking behaviour. Inclusive fitness benefits ...

journal_title：Nature

authors： Shorey L,Piertney S,Stone J,Höglund J

更新日期：2000-11-16 00:00:00

abstract：:Metastatic progression of cancer is a complex and clinically daunting process. We previously identified a set of human microRNAs (miRNAs) that robustly suppress breast cancer metastasis to lung and bone and which display expression levels that predict human metastasis. Although these findings revealed miRNAs as suppre...

journal_title：Nature

authors： Png KJ,Halberg N,Yoshida M,Tavazoie SF

更新日期：2011-12-14 00:00:00

abstract：:CYCLINS are proteins synthesized during each cell cycle and abruptly destroyed in each mitosis. Cyclins have been implicated in the induction of mitosis and are associated with the serine-threonine protein kinase p34cdc2 as components of mitosis promoting factor (MPF). On the basis of conserved sequence motifs cyclins...

journal_title：Nature

authors： Pines J,Hunter T

更新日期：1990-08-23 00:00:00

abstract：:The Notch genes encode single-pass transmembrane receptors that transduce the extracellular signals responsible for cell fate determination during several steps of metazoan development. The mechanism by which extracellular signals affect gene transcription and ultimately cell fate decisions is beginning to emerge for ...

journal_title：Nature

authors： Huppert SS,Le A,Schroeter EH,Mumm JS,Saxena MT,Milner LA,Kopan R

更新日期：2000-06-22 00:00:00

abstract：:The Haldane model on a honeycomb lattice is a paradigmatic example of a Hamiltonian featuring topologically distinct phases of matter. It describes a mechanism through which a quantum Hall effect can appear as an intrinsic property of a band structure, rather than being caused by an external magnetic field. Although p...

journal_title：Nature

authors： Jotzu G,Messer M,Desbuquois R,Lebrat M,Uehlinger T,Greif D,Esslinger T

更新日期：2014-11-13 00:00:00

abstract：:In magnetic memory devices, logical bits are recorded by selectively setting the magnetization vector of individual magnetic domains either 'up' or 'down'. In such devices, the fastest and most efficient recording method involves precessional switching: when a magnetic field B(p) is applied as a write pulse over a per...

journal_title：Nature

authors： Tudosa I,Stamm C,Kashuba AB,King F,Siegmann HC,Stöhr J,Ju G,Lu B,Weller D

更新日期：2004-04-22 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：:Throughout the latter half of this century, the development and spread of resistance to most front-line antimalarial compounds used in the prevention and treatment of the most severe form of human malaria has given cause for grave clinical concern. Polymorphisms in pfmdr1, the gene encoding the P-glycoprotein homologu...

journal_title：Nature

authors： Reed MB,Saliba KJ,Caruana SR,Kirk K,Cowman AF

更新日期：2000-02-24 00:00:00

abstract：:In myelinated nerves, segregation of voltage-dependent sodium channels to nodes of Ranvier is crucial for saltatory conduction along axons. As sodium channels associate and colocalize with ankyrin at nodes of Ranvier, one possibility is that sodium channels are recruited and immobilized at axonal sites which are speci...

journal_title：Nature

authors： Joe EH,Angelides K

更新日期：1992-03-26 00:00:00