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166篇 您的检索式:作者名="Sybill"
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1Ecohydrological advances and applications in plant–water relations research:a review显示文摘Aims The field of ecohydrology is providing new theoretical frameworks and methodological approaches for understanding the complex interactions and feedbacks between vegetation and hydrologic flows at multiple scales.Here we review some of the major scientific and technological advances in ecohydrology as related to understanding the mechanisms by which plant–water relations influence water fluxes at ecosystem,watershed and landscape scales.Important Findings We identify several cross-cutting themes related to the role of plant–water relations in the ecohydrological literature,including the contrasting dynamics of water-limited and water-abundant ecosystems,transferring information about water fluxes across scales,understanding spatiotemporal heterogeneity and complexity,ecohydrological triggers associated with threshold behavior and shifts between alternative stable states and the need for long-term data sets at multiple scales.We then show how these themes are embedded within three key research areas where improved understanding of the linkages between plant–water relations and the hydrologic cycle have led to important advances in the field of ecohydrology:upscaling water fluxes from the leaf to the watershed and landscape,effects of plant–soil interactions on soil moisture dynamics and controls exerted by plant water use patterns and mechanisms on streamflow regime.In particular,we highlight several pressing environmental challenges facing society today where ecohydrology can contribute to the scientific knowledge for developing sound management and policy solutions.We conclude by identifying key challenges and opportunities for advancing contributions of plant–water relations research to ecohydrology in the future.Heidi Asbjornsen Gregory R.Goldsmith Maria S.Alvarado-Barrientos Karin Rebel Floortje P.Van Osch Max Rietkerk Jiquan Chen Sybil Gotsch Conrado Tobon Daniel R.Geissert Alberto Gomez-Tagle Kellie Vache Todd E.Dawson 2011Journal of Plant Ecology2011,4,1:15
2活性氮:多多益善?显示文摘尺度和范围 1790年,Jean Claude Chaptal将元素周期表中的第14个元素命名为'氮'[1].两个世纪后,氮在生物地球化学过程中的作用和其作为一种必需营养元素的重大功能得到了很好的理解.我们知道,人类(以及植物和动物)的生存离不开氮;大气中大量存在的氮气(N2)是植物和动物不能直接利用的一种化学形式;只有少数特殊的微生物能够将大气中的氮转化('固定')为植物、动物可以利用的活性氮(活性氮)[2];另一小群体的微生物能够将活性氮转化(反硝化)为氮气.James N.Galloway Ellis B.Cowling Sybil P.Seitzinger Robert H.Socolow 赵海珍 2002AMBIO-人类环境杂志2002,31,2:6
3Tetraphenylethylene-BODIPY aggregation-induced emission luminogens for near-infrared polymer light-emitting diodes显示文摘The aggregation-induced emission(AIE) phenomenon provides a new direction for the development of organic light-emitting devices. Here, we present a new class of emitters based on 4,4-difluoro-4-bora-3 a,4 a-diaza-s-indacene(BODIPY), functionalized at different positions with tetraphenylethylene(TPE), which is one of the most famous AIE luminogens. Thanks to this modification, we were able to tune the photoluminescence of the BODIPY moiety from the green to the near-infrared(NIR)spectral range and achieve PL efficiencies of ~50% in the solid state. Remarkably, we observed an enhancement of the AIE and up to ~100% photoluminescence efficiencies by blending the TPE-substituted BODIPY fluorophores with a poly[(9,9-di-noctylfluorene-2,7-diyl)-alt-(benzo[2,1,3]thiadiazol-4,7-diyl)](F8 BT) matrix. By incorporating these blends in organic lightemitting diodes(OLEDs), we obtained electroluminescence peaked in the range 650–700 nm with up to 1.8% external quantum efficiency and ~2 m W/cm2 radiance, a remarkable result for red/NIR emitting and solution-processed OLEDs.Sebnem Baysec Alessandro Minotto Patrick Klein Simone Poddi Andrea Zampetti Sybille Allard Franco Cacialli Ullrich Scherf 2018Science China Chemistry2018,61,8:6
4Pyruvate kinase type M2: A key regulator of the metabolic budget system in tumor cells显示文摘Sybille Mazurek 2010International Journal of Biochemistry and Cell Biology2010,,7:3
5Progress Towards Genetics and Breeding for Minor Genes Based Resistance to Ug99 and Other Rusts in CIMMYT High-Yielding Spring Wheat显示文摘Wheat rusts continue to cause signif icant losses worldwide despite major efforts given to their genetic control.This is due to frequent evolution and selection of virulence in pathogen overcoming the deployed race-specific resistance genes.Although the life of effective race-specif ic resistance genes can be prolonged by using gene combinations,an alternative approach being implemented at CIMMYT is to deploy varieties that posses adult plant resistance(APR)based on combinations of minor,slow rusting genes.When present alone,the APR genes do not confer adequate resistance especially under high disease pressure;however,combinations of 4 or 5 minor genes usually result in'near-immunity'or a high level of resistance.Although only a few APR genes are catalogued,various APR QTLs are now known and could lead to further characterization of additional genes.Four characterized genes have pleiotropic effects in conferring partial APR to all 3 rusts and powdery mildew,thus simplifying the task of breeding wheat varieties that are resistant to multiple diseases.Significant progress was made recently in developing high-yielding wheat germplasm that possesses high levels of APR to all three rusts by implementing a MexicoKenya shuttle breeding scheme.Parents with APR to Ug99 were hybridized with high-yielding parents that had adequate to high levels of APR to leaf rust and yellow rust.Segregating populations and advanced lines from these crosses were selected under high rust pressures in Mexico(leaf rust and yellow rust)and Kenya(Ug99 stem rust and yellow rust)to identify highyielding progenies that possess high to adequate APR to all three rusts.International distribution of these high-yielding wheats is underway through CIMMYT international yield trials and screening nurseries.It is expected that several wheat varieties with APR to three rusts will be released and grown in various countries in the near-future that will allow determining the durability of resistance.Ravi Prakash Singh Sybil Herrera-Foessel Julio Huerta-Espino Sukhwinder Singh Sridhar Bhavani Caixia Lan Bhoja Raj Basnet 2014Journal of Integrative Agriculture2014,13,2:3
6Lr68 : a new gene conferring slow rusting resistance to leaf rust in wheat显示文摘Sybil A. Herrera-Foessel Ravi P. Singh Julio Huerta-Espino Garry M. Rosewarne Sambasivam K. Periyannan Libby Viccars Violeta Calvo-Salazar Caixia Lan Evans S. Lagudah 2012Theoretical and Applied Genetics2012,,8:2
7Pyruvate kinase type M2 and its role in tumor growth and spreading显示文摘Sybille Mazurek C. Bruce Boschek Ferdinand Hugo Erich Eigenbrodt 2005Seminars in Cancer Biology2005,,4:2
8Increasing anthropogenic nitrogen inputs and riverine DIN exports from the Changjiang River basin under changing human pressures显示文摘Yan Weijin Mayorga Emilio Li Xinyan Seitzinger Sybil P. Bouwman A. F 2010Global Biogeochemical Cycles2010,,:2
9Loss of Matrix metalloproteinase-13attenuates murine radiation-induced pulmonary fibrosis显示文摘Paul F Bettina H Sybille T 2010InternationalJournal of Radiation Oncology Biology Physics2010,77,2:1
10Viral Hepatitis in Alcohol-Dependent Inpatients: Prevalence, Risk Factors, and Treatment Uptake显示文摘Christiane Sybille Schmidt Daniela Sch?n Bernd Schulte Stefan Lüth Susanne Polywka Jens Reimer 2013Journal of Addiction Medicine2013,,6:1
11Combining Laser Chemical Processing and Aerosol Jet Printing:a Laboratory Scale Feasibility Study显示文摘DREW Kristine HOPMAN Sybille H(..O)RTEIS Matthias 0,,:1
12Suppression of ripening-associated gene expression in tomato fruits subjected to a high CO2 concentration显示文摘CHRISTOPHE R SYBILLE D CHRISTIAN C PHILIPPE R 1997Plant Physiology1997,114,1:1
13Simulator demonstration of the interphase controller teehnology显示文摘SYBILLE G HAJ-MAHARSI Y MORIN G 1996IEEE Trans on Power Delivery1996,11,4:1
14The advanced glycation end product N (epsilon)-carboxymethyllysine is not a predictor of cardiovascular events and renal outcomes in patients type 2 diabetic kidney disease and hypertension 显示文摘Martin B Sybille F Gunter W 2006Am J Kidney Dis2006,48,4:1
15Hysteresis modeling in the MATLAB/power system blockset 显示文摘CASORIA S SYBILLE G BRUNELLE P 2003Mathematics and Computers in Simulation2003,63,35:1
16Constipation and Risk of Cardiovascular Disease among Postmenopausal Women 显示文摘Elena Salmoirago - Blotcher Sybil Crawford Elizabeth Jackson 2011The American Journal of Medi- cine2011,124,8:1
17Initial characterization of an^18 F-labeled myocardial perfusion tracer显示文摘Huisman MC Takahiro Higuchi Sybille Reder 2008J Nucl Med2008,49,4:1
18Nitrogen retention in rivers: model development and application to watersheds in the northeastern U.S.A.显示文摘Sybil P. Seitzinger Renée V. Styles Elizabeth W. Boyer Richard B. Alexander Gilles Billen Robert W. Howarth Bernhard Mayer Nico van Breemen 2002Biogeochemistry2002,,1:1
19Vasculogenesis and Angiogenesis as Mechanisms of Vascular Network Formation, Growth and Remodeling显示文摘Sybill Patan 2000Journal of Neuro - Oncology (-)2000,,1:1
20Estimating denitrification in North Atlantic continental shelf sediments显示文摘Sybil P. Seitzinger Anne E. Giblin 1996Biogeochemistry1996,,1:1
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