The changing face of HIV in China.

abstract：:It has been speculated that brain activities might directly control adaptive immune responses in lymphoid organs, although there is little evidence for this. Here we show that splenic denervation in mice specifically compromises the formation of plasma cells during a T cell-dependent but not T cell-independent immune ...

journal_title：Nature

authors： Zhang X,Lei B,Yuan Y,Zhang L,Hu L,Jin S,Kang B,Liao X,Sun W,Xu F,Zhong Y,Hu J,Qi H

更新日期：2020-05-01 00:00:00

abstract：:The GAL4 protein activates transcription of the genes required for galactose utilization in Saccharomyces cerevisiae. The protein, consisting of 881 amino acids, is dimeric when bound to one of the approximately twofold symmetrical DNA sites present in the galactose upstream activating sequence (UASG). Here we use two...

journal_title：Nature

authors： Baleja JD,Marmorstein R,Harrison SC,Wagner G

更新日期：1992-04-02 00:00:00

abstract：:Natural products containing phosphorus-carbon bonds have found widespread use in medicine and agriculture. One such compound, phosphinothricin tripeptide, contains the unusual amino acid phosphinothricin attached to two alanine residues. Synthetic phosphinothricin (glufosinate) is a component of two top-selling herbic...

journal_title：Nature

authors： Cicchillo RM,Zhang H,Blodgett JA,Whitteck JT,Li G,Nair SK,van der Donk WA,Metcalf WW

更新日期：2009-06-11 00:00:00

abstract：:When a person walks through a rigid environment while holding eyes and head fixed, the pattern of retinal motion flows radially away from a point, the focus of expansion (Fig. 1a). Under such conditions of translation, heading corresponds to the focus of expansion and people identify it readily. But when making an eye...

journal_title：Nature

authors： Royden CS,Banks MS,Crowell JA

更新日期：1992-12-10 00:00:00

abstract：:Early-life dietary transitions reflect fundamental aspects of primate evolution and are important determinants of health in contemporary human populations. Weaning is critical to developmental and reproductive rates; early weaning can have detrimental health effects but enables shorter inter-birth intervals, which inf...

journal_title：Nature

authors： Austin C,Smith TM,Bradman A,Hinde K,Joannes-Boyau R,Bishop D,Hare DJ,Doble P,Eskenazi B,Arora M

更新日期：2013-06-13 00:00:00

abstract：:The ability to repair or promote regeneration within the adult human brain has been envisioned for decades. Until recently, such efforts mainly involved delivery of growth factors and cell transplants designed to rescue or replace a specific population of neurons, and the results have largely been disappointing. New a...

journal_title：Nature

authors： Barker RA,Götz M,Parmar M

更新日期：2018-05-01 00:00:00

abstract：:Tumour necrosis factor (TNF) elicits multiple biological effects through two distinct cell surface receptors, TNF-R1 (p55) and TNF-R2 (p75). Most TNF-mediated biological responses, such as cell death, gene induction, antiviral activity and cytokine production, have been attributed to TNF-R1 (refs 1-5). Gene targeting ...

journal_title：Nature

authors： Erickson SL,de Sauvage FJ,Kikly K,Carver-Moore K,Pitts-Meek S,Gillett N,Sheehan KC,Schreiber RD,Goeddel DV,Moore MW

更新日期：1994-12-08 00:00:00

abstract：:There is increasing evidence for the process of sympatric speciation, in which reproductive isolation of species occurs without physical isolation. Theoretical models have focused on disruptive natural selection as the crucial pressure for splitting a species. Here we report the theoretical finding that sympatric spec...

journal_title：Nature

authors： Higashi M,Takimoto G,Yamamura N

更新日期：1999-12-02 00:00:00

abstract：:Direct dating of ductile shear zones and calculation of uplift/exhumation rates can be done using various radiometric dating techniques. But radiometric dating of shallow crustal faulting, which occurs in the crust's brittle regime, has remained difficult because the low temperatures typical of shallow crusted faults ...

journal_title：Nature

authors： van der Pluijm BA,Hall CM,Vrolijk PJ,Pevear DR,Covey MC

更新日期：2001-07-12 00:00:00

abstract：:Circulating tumour cells in women with advanced oestrogen-receptor (ER)-positive/human epidermal growth factor receptor 2 (HER2)-negative breast cancer acquire a HER2-positive subpopulation after multiple courses of therapy. In contrast to HER2-amplified primary breast cancer, which is highly sensitive to HER2-targete...

journal_title：Nature

authors： Jordan NV,Bardia A,Wittner BS,Benes C,Ligorio M,Zheng Y,Yu M,Sundaresan TK,Licausi JA,Desai R,O'Keefe RM,Ebright RY,Boukhali M,Sil S,Onozato ML,Iafrate AJ,Kapur R,Sgroi D,Ting DT,Toner M,Ramaswamy S,Haas W,Mah

更新日期：2016-09-01 00:00:00

abstract：:The factors driving glacial changes in ocean overturning circulation are not well understood. On the basis of a comparison of 20 climate variables over the past four glacial cycles, the SPECMAP project proposed that summer insolation at high northern latitudes (that is, Milankovitch forcing) drives the same sequence o...

journal_title：Nature

authors： Lisiecki LE,Raymo ME,Curry WB

更新日期：2008-11-06 00:00:00

abstract：:One of us has previously reported that treatment of the Keilin and Hartree heart-muscle preparation with 2,3-dimercaptopropanol (BAL), in the presence of air, leads to the complete inactivation of the succinate oxidase system with little if any effect on the activities of succinate dehydrogenase (until more than half ...

journal_title：Nature

authors： Slater EC,de Vries S

更新日期：1980-12-25 00:00:00

abstract：:Capacitors are a mainstay of electronic integrated circuits and devices, where they perform essential functions such as storing electrical charge, and blocking direct current while allowing alternating currents to propagate. Because they are often the largest components in circuits, extensive efforts are directed at r...

journal_title：Nature

authors： Stengel M,Spaldin NA

更新日期：2006-10-12 00:00:00

abstract：: ...

journal_title：Nature

authors： Masood E

更新日期：2018-11-01 00:00:00

abstract：:Fluorescence polarization (FP) equilibrium binding assays differ from other types of binding studies in one important regard: they require no steps to separate free from bound tracer and are therefore fast, simple and accurate. ...

journal_title：Nature

authors： Checovich WJ,Bolger RE,Burke T

更新日期：1995-05-18 00:00:00

abstract：:The function of the Xenopus laevis ribosomal spacer has been studied in vivo and by microinjection of in vitro mutants into Xenopus oocytes. It is shown that the spacer directs specific RNA transcripts which most probably terminate upstream of the ribosomal genes and that it is able to modulate transcription of these ...

journal_title：Nature

authors： Moss T

更新日期：1983-03-17 00:00:00

abstract：:Photoinduced electron transfer (PET) is a phenomenon whereby the absorption of light by a chemical species provides an energetic driving force for an electron-transfer reaction1-4. This mechanism is relevant in many areas of chemistry, including the study of natural and artificial photosynthesis, photovoltaics and pho...

journal_title：Nature

authors： MacKenzie IA,Wang L,Onuska NPR,Williams OF,Begam K,Moran AM,Dunietz BD,Nicewicz DA

更新日期：2020-04-01 00:00:00

abstract：:Fas is a type-I membrane protein that transduces an apoptotic signal. Binding of Fas ligand or agonistic anti-Fas antibody to Fas kills the cells by apoptosis. Studies in the nematode Caenorhabditis elegans have suggested that proteases such as interleukin-1 beta-converting enzyme (ICE) or the product of the C. elegan...

journal_title：Nature

authors： Enari M,Hug H,Nagata S

更新日期：1995-05-04 00:00:00

abstract：:For hundreds of years, scientists have tracked the changing appearance of Mars, first by hand drawings and later by photographs. Because of this historical record, many classical albedo patterns have long been known to shift in appearance over time. Decadal variations of the martian surface albedo are generally attrib...

journal_title：Nature

authors： Fenton LK,Geissler PE,Haberle RM

更新日期：2007-04-05 00:00:00

abstract：:Glycogen synthase kinase-3beta (GSK-3beta) has integral roles in a variety of biological processes, including development, diabetes, and the progression of Alzheimer's disease. As such, a thorough understanding of GSK-3beta function will have a broad impact on human biology and therapeutics. Because GSK-3beta interact...

journal_title：Nature

authors： Liu KJ,Arron JR,Stankunas K,Crabtree GR,Longaker MT

更新日期：2007-03-01 00:00:00

abstract：:The upper temperature at which a living system can exist is limited by the hydrolytic breakdown rate of its chemical constituents. The peptide bonds of proteins, the phosphodiester and N-glycosyl bonds in RNA and DNA, and the pyrophosphate and N-glycosyl bonds in nucleotides such as ATP and NAD are among the more impo...

journal_title：Nature

authors： White RH

更新日期：1984-08-02 00:00:00

abstract：:Although drugs are intended to be selective, at least some bind to several physiological targets, explaining side effects and efficacy. Because many drug-target combinations exist, it would be useful to explore possible interactions computationally. Here we compared 3,665 US Food and Drug Administration (FDA)-approved...

journal_title：Nature

authors： Keiser MJ,Setola V,Irwin JJ,Laggner C,Abbas AI,Hufeisen SJ,Jensen NH,Kuijer MB,Matos RC,Tran TB,Whaley R,Glennon RA,Hert J,Thomas KL,Edwards DD,Shoichet BK,Roth BL

更新日期：2009-11-12 00:00:00

abstract：:Indirect-benefit models of sexual selection assert that females gain heritable offspring advantages through a mating bias for males of superior genetic quality. This has generally been tested by associating a simple morphological quality indicator (for example, bird tail length) with offspring viability. However, sele...

journal_title：Nature

authors： Fedorka KM,Mousseau TA

更新日期：2004-05-06 00:00:00

abstract：:Refractoriness to induction chemotherapy and relapse after achievement of remission are the main obstacles to cure in acute myeloid leukaemia (AML). After standard induction chemotherapy, patients are assigned to different post-remission strategies on the basis of cytogenetic and molecular abnormalities that broadly d...

journal_title：Nature

authors： Ng SW,Mitchell A,Kennedy JA,Chen WC,McLeod J,Ibrahimova N,Arruda A,Popescu A,Gupta V,Schimmer AD,Schuh AC,Yee KW,Bullinger L,Herold T,Görlich D,Büchner T,Hiddemann W,Berdel WE,Wörmann B,Cheok M,Preudhomme C,Domb

更新日期：2016-12-15 00:00:00

abstract：:Quantum computation, a paradigm of computing that is completely different from classical methods, benefits from theoretically proved speed-ups for certain problems and can be used to study the properties of quantum systems1. Yet, because of the inherently fragile nature of the physical computing elements (qubits), ach...

journal_title：Nature

authors： Kandala A,Temme K,Córcoles AD,Mezzacapo A,Chow JM,Gambetta JM

更新日期：2019-03-01 00:00:00

abstract：:Strong interactions between electrons in a solid material can lead to surprising properties. A prime example is the Mott insulator, in which suppression of conductivity occurs as a result of interactions rather than a filled Bloch band. Proximity to the Mott insulating phase in fermionic systems is the origin of many ...

journal_title：Nature

authors： Jördens R,Strohmaier N,Günter K,Moritz H,Esslinger T

更新日期：2008-09-11 00:00:00

abstract：:Laboratory measurements of sound velocities of high-pressure minerals provide crucial information on the composition and constitution of the deep mantle via comparisons with observed seismic velocities. Calcium silicate (CaSiO3) perovskite (CaPv) is a high-pressure phase that occurs at depths greater than about 560 ki...

journal_title：Nature

authors： Gréaux S,Irifune T,Higo Y,Tange Y,Arimoto T,Liu Z,Yamada A

更新日期：2019-01-01 00:00:00

abstract：:Time-of-flight mass spectrometry-most notably matrix-assisted laser-desorption-ionization time-of-flight (MALDI-TOF) spectrometry-is an important class of techniques for the study of proteins and other biomolecules. Although these techniques provide excellent performance for masses up to about 20,000 daltons, there ha...

journal_title：Nature

authors： Hilton GC,Martinis JM,Wollman DA,Irwin KD,Dulcie LL,Gerber D,Gillevet PM,Twerenbold D

更新日期：1998-02-12 00:00:00

abstract：:The nematode Caenorhabditis elegans is an important model for studying the genetics of ageing, with over 50 life-extension mutations known so far. However, little is known about the pathobiology of ageing in this species, limiting attempts to connect genotype with senescent phenotype. Using ultrastructural analysis an...

journal_title：Nature

authors： Herndon LA,Schmeissner PJ,Dudaronek JM,Brown PA,Listner KM,Sakano Y,Paupard MC,Hall DH,Driscoll M

更新日期：2002-10-24 00:00:00

abstract：:An experiment by the Gates Foundation is food for thought for other research agencies. ...

journal_title：Nature

authors：

更新日期：2008-10-30 00:00:00