检索结果-南通市图书馆

Changes in leaflet shape and seeds per pod modify crop growth parameters, canopy light environment, and yield components in soybean

引用

The Crop Journal 2020年第2期8卷 351-364页

作者： Julieta S.Bianchi alvaro Quijano Carlos O.Gosparini Laboratorio de Fisiología Vegetal Facultad de Ciencias AgrariasUniversidad Nacional de Rosario(UNR)Campo Experimental J.VillarinoP.O.Box 142125 ZavallaSanta FeArgentina Instituto de Investigaciones en Ciencias Agrarias de Rosario(IICAR) Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET)–UNRCampo Experimental J.VillarinoP.O.Box 142125 ZavallaSanta FeArgentina Consejo de Investigaciones de la UNR(CIUNR) Campo Experimental J.VillarinoP.O.Box 142125 ZavallaSanta FeArgentina

Seed number(SN)is the component most strongly associated with yield in *** depends on pod number(PN)and seeds per pod(SPP).Whereas SPP is a relatively stable component,PN is strongly influenced by environmental and management ***,the environmental cues involved in PN regulation are not completely *** influence of increasing SPP on other yield components is *** trials were conducted in two growing seasons using two pairs of lanceolate(L)and ovate(O)nearisogenic lines,sown at low(LD)and high(HD)plant densities to evaluate the effect of leaflet shape on crop growth parameters,canopy red/far-red(R/FR)ratio,their relationships with pod initiation,PN,and yield;and the effect of increasing SPP on PN,SN,and yield.L canopies showed a higher number of pods initiated(PI)than O canopies owing to the increase of PI on *** association between PI and crop growth rate during the pod set period was *** was negatively associated with leaf area index(LAI)and light *** contrast,a positive association between PI and canopy R/FR ratio was *** latter association was sustained irrespective of whether the LAI was below or above its critical value,providing experimental evidence that R/FR ratio is positively associated with pod initiation in soybean *** increase in SPP produced a direct and steady increase in SN regardless of PN and plant density.A yield increase was observed for the L-LD treatment,which combined the increased SPP of L lines with the highest PN of L-LD *** results have implications for crop management and breeding strategies aimed at increasing the yield potential of soybean.

关键词： soybean breeding shape

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Conic hyperspectral dispersion mapping applied to semiconductor plasmonics

引用

Light(Science & Applications) 2012年第1期1卷 48-55页

作者： Dominic Lepage alvaro Jimenez Jacques Beauvais Jan J Dubowski Department of Electrical and Computer Engineering Interdisciplinary Institute for Technological Innovation(3IT)Universite´de SherbrookeSherbrookeQue´.Canada

The surface plasmon resonance tracking over metal surfaces is a well-established,commercially available,biochemical quantification tool primarily applied in *** utilization of such a tool is,however,constrained to highly specialized industries,capable of justifying the human and instrumental resource investments required by the characterization *** have proposed to expand the field of application of this biosensing approach by redesigning this method through the integration and miniaturization within a semiconductor *** and broadband emission from a light-emitting semiconductor is employed to couple a continuum of surface plasmon modes over a metal–dielectric architecture interfaced with a GaAs–AlGaAs substrate.A tensor version of rigorous coupled wave theory is employed to optimize the various fabrication specifications and to predict the light scatterings over a wide range of *** then present a hyperspectral characterization microscope capable of directly mapping the dispersion relation of scattered light,including diffracted surface plasmons,as an intensity distribution versus photon energy and surface *** carried out in a buffered solution demonstrate the accurate description of the uncollimated and broadband surface plasmon ***,we introduce a simplified method of dispersion mapping,in which quasi-conic cross-sections of the light’s scattering can be acquired directly,thus monitoring surficial responses in as fast as 1.2 *** is over 300 times faster than required by implementing full dispersion *** compromising on the volume of collected information,this method,combined with the solid-state integration of the platform,shows great promise for the fast detection of biochemical agents.

关键词： biosensors light scattering optical devices semiconductors surface plasmon resonance

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Bile acids:Chemistry,physiology,and pathophysiology

引用

World Journal of Gastroenterology 2009年第7期15卷 804-816页

作者： Maria J Monte Jose JG Marin alvaro Antelo Jose Vazquez-Tato Laboratory of Experimental Hepatology and Drug Targeting CIBERehdUniversity of Salamanca Facultad de Ciencias Departamento de Quimica FisicaCampus of LugoUniversity of Santiago

The family of bile acids includes a group of molecular species of acidic steroids with very peculiar physical-chemical and biological *** are synthesized by the liver from cholesterol through several complementary pathways that are controlled by mechanisms involving finetuning by the levels of certain bile acid *** their best-known role is their participation in the digestion and absorption of fat,they also play an important role in several other physiological ***,genetic abnormalities accounting for alterations in their synthesis,biotransformation and/or transport may result in severe alterations,even leading to lethal situations for which the sole therapeutic option may be liver ***,the increased levels of bile acids reached during cholestatic liver diseases are known to induce oxidative stress and apoptosis,resulting in damage to the liver parenchyma and,eventually,extrahepatic *** this occurs during pregnancy,the outcome of gestation may be *** contrast,the physical-chemical and biological properties of these compounds have been used as the bases for the development of drugs and as pharmaceutical tools for the delivery of active agents.

关键词： Cholestasis Cholesterol Liver Metabolism Transport

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Utilization of access to colorectal cancer screening modalities in low-income populations after medicaid expansion

引用

World Journal of Gastrointestinal Oncology 2023年第9期15卷 1653-1661页

作者： Gerald Fletcher Joan Culpepper-Morgan alvaro Genao Eric Alatevi Department of Gastroenterology NYC Health+Hospitals/HarlemNew YorkNY 10037United States Department of Gastroenterology NYC Health+Hospitals/Harlem506 Lenox AveNew YorkNY 10037United States

BACKGROUND Colorectal cancer(CRC)remains a relevant public health *** research suggests that racial,economic and geographic disparities impact *** the expansion of Medicaid eligibility as a key component of the Affordable Care Act(ACA),there is a dearth of information on the utilization of newly gained access to CRC screening by low-income *** study investigates the impact of the ACA’s Medicaid expansion on utilization of the various CRC screening modalities by low-income *** working hypothesis is that Medicaid expansion will increase access and utilization of CRC screening by low-income *** To investigate the impact of the Affordable Care Act and in particular the effect of Medicaid expansion on access and utilization of CRC screening modalities by Medicaid state expansion status across the United *** This was a quasi-experimental study design using data from the Behavioral Risk Factor Surveillance System,a large health system survey for participants across the United States and with over 2.8 million *** period of the study was from 2011 to 2016 which was dichotomized as pre-ACA Medicaid expansion(2011-2013)and post-ACA Medicaid expansion(2014-2016).The change in utilization of access to CRC screening strategies between the expansion periods were analyzed as the dependent *** analyses included stratification of the access by ethnicity/race,income,and education *** A greater increase in utilization of access to CRC screening was observed in Medicaid expansion states than in nonexpansion states[+2.9%;95%confidence interval(95%CI):2.12,3.69].Low-income participants showed a+4.02%(95%CI:2.96,5.07)change between the expansion periods compared with higher income groups+3.19%(1.70,4.67).Non-Hispanic Whites and Hispanics[+3.01%(95%CI:2.16,3.85)vs+5.51%(95%CI:2.81,8.20)]showed a statistically significant increase in utilization of access but not in Non-Hispanic Blac

关键词： Medicaid expansion Colorectal cancer screening Low-income Disparities Minorities Affordable care act

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Visual and ocular effects from the use of flat-panel displays

引用

International Journal of Ophthalmology(English edition) 2016年第6期9卷 881-885页

作者： Esteban Porcar alvaro M.Pons Amalia Lorente Department of Optics Optometry and Vision Science UnitPhysics CollegeUniversity of ValenciaBux~assotValencia 46100Spain Department of OpticsⅡ Optometry CollegeComplutense University of MadridMadrid 28040Spain

AIM： To evaluate the prevalence of eye symptoms in a non-presbyopic population of video display unit （VDU） users with flat-panel displays. METHODS： One hundred and sixteen VDU users with flat-panel display from an urban population participated in the study; their ages ranging from 20 to 34y. There were 60 females and 56 males. An eye examination to rule out the presence of significant uncorrected refractive errors, general binocular dysfunctions and eye conditions was carried out. In order to determine and quantify the type and nature of eye symptoms, participants were asked to answer written questionnaire and the results were grouped by gender, age and number of hours a day spent using a VDU. RESULTS： Seventy-two percent of participants reported eye symptoms related to VDU use. Eye symptoms from moderate-to-severe were found in 23% of participants. The main symptom was moderate-to- severe tired eyes （14%）; followed by sensitivity to bright lights （12%）, blurred vision at far distances （10%）, eyestrain or dry eye or irritated or burning eyes （9%）, difficulty in refocusing from one distance to another or headache （8%） and blurred vision at near or intermediate distances （〈4%）. Eye symptoms were greater among females （P=0.005） and increased with VDU use, markedly above 6h spent using a VDU in a typical day （P=0.01）. CONCLUSION： Significant eye symptoms relate to VDU use often occur and should not be underestimated. The increasing use of electronic devices with flat-panel display should prompt users to take appropriate measures to prevent or to relieve the eye symptoms arising from their use.

关键词： asthenopia eye symptoms computerterminals computer vision syndrome

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Transpiration and growth responses by Eucalyptus species to progressive soil drying

引用

Journal of Forestry Research 2022年第5期33卷 1529-1543页

作者： Marcel Carvalho Abreu alvaro Augusto Vieira Soares Cleverson Henrique de Freitas Fabrina Bolzan Martins Department of Environment Science Forest InstituteFederal Rural University of Rio de JaneiroSeropédicaRio de Janeiro 23890-000Brazil Institute of Agricultural Sciences Federal University of UberlândiaMonte CarmeloMinas Gerais 38405-302Brazil “Luiz de Queiroz”College of Agriculture University of São PauloPiracicabaSão Paulo 13418-900Brazil Natural Resources Institute Federal University of ItajubáItajubáMinas Gerais 37500-903Brazil

The regulation of plant transpiration is a key factor affecting transpiration efficiency, growth and adaptation of Eucalyptus species to limited water availability in tropical and subtropical environments. However, few studies have related this trait to the performance of Eucalyptus seedlings and none have investigated the influence of vapor pressure deficit (VPD) on transpiration rates and growth. In this study, the transpiration and growth responses of seedlings of Eucalyptus urophylla (S.T. Blake) and Eucalyptus cloeziana (F. muell.) to progressive soil water deficits were evaluated under semi-controlled conditions using the fraction of transpirable soil water (FTSW) method. In addition, the influence of VPD on seedling transpiration, development and growth was also investigated. The FTSW threshold ranged from 0.40 to 0.99 for the transpiration rate and from 0.32 to 0.97 for the development and growth variables. Little or no changes in the FTSW threshold were detected in response to changes in atmospheric VPD. Both Eucalyptus species presented a conservation strategy under drought stress. In addition, water-conserving mechanisms during the seedling phase were related to rapid stomatal closure, reduced leaf area, and number of leaves.

关键词： Soil water deficit Fraction of transpirable soil water Transpiration Seedling growth Vapor pressure deficit

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Applicability ＆ Readiness of Equity Crowdfunding to the Art Market in China

Applicability ＆ Readiness of Equity Crowdfunding to the Art...

引用

作者： alvaro Flores Obieta 上海交通大学

学位级别：硕士

While Crowdfunding is a phenomenon that has been showing exponential growth in the recent years,Equity Crowdfunding is still in maturity,and its application to different industries has yet to be *** its traditional form,small investors face a long series of risks,such as illiquidity risk and information ***,the art market as investment faces many challenges and is still considered high risk,illiquid,still opaque,unregulated and disruptive features with high transaction costs and a high degree of *** a framework developed by the World Bank,this paper assesses the applicability and potential role of equity crowdfunding in the art market in China,arguing that Equity Crowdfunding in tangible assets through syndication is the best way to mitigate most of the risks related to this funding model.

关键词：

来源：

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Peritoneal metastases of colorectal origin treated by cytoreduction and HIPEC: An overview

引用

World Journal of Gastrointestinal Oncology 2014年第10期6卷 407-412页

作者： alvaro Arjona-Sánchez Francisco Javier Medina-Fernández Francisco Cristobal mu?oz-Casares Angela Casado-Adam Juan Manuel Sánchez-Hidalgo Sebastián Rufián-Pe?a Unit of Oncological and Pancreatic Surgery Department of General and Digestive Surgery University Hospital Reina Sofia 14004 Cordoba Spain

Colorectal peritoneal carcinomatosis was considered a terminal condition with a merely palliative treatment that included only supportive care, palliative surgery and the best systemic chemotherapy. Since the birth of a new approach, cytoreductive surgery with peritonectomy procedures together with hyperthermic intraperitoneal chemotherapy and/or early postoperative intraperitoneal chemotherapy to treat peritoneal carcinomatosis, many research groups contributed with promising results using this procedure being up to date this strategy the only one that has shown curative benefits on colorectal peritoneal carcinomatosis achieving reported overall survival rates up to 64 mo and fiveyear survival rates up to 51%. The aim of this paper is to expose an updated overview of the therapeutic possibilities of these procedures in colorectal peritoneal metastases in the same way that our Unit of Oncologic Surgery has performed since 1997 with more than four hundred procedures.

关键词： Carcinomatosis peritoneal Colon cancer Intraperitoneal chemotherapy Cytoreduction Perito-nectomy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Physical activation of graphene: An effective, simple and clean procedure for obtaining microporous graphene for high-performance Li/S batteries

引用

Nano Research 2019年第4期12卷 759-766页

作者： Almudena Benitez alvaro Caballero Julian Morales Jusef Hassoun Enrique Rodriguez-Castellon Jesus Canales-Vazquez Dpto. Quimica Inorganica e Ingenieria Qutmica Instituto de Quimica Fina y Nanoquimica Universidad de Cordoba 14071 Cordoba Spain Departm ent of Chemical and Pharmaceutical Sciences University of Ferrara Via Fossato di Mortara 17 44121 Ferrara Italy Dpto. de Quimica Inorganica Cristalografia y Mineralogia Facultad de Ciencias Universidad de Malaga 29071 Malaga Spain Instituto de Energias Renovables Universidad de Castilla-La Mancha Paseo de La Investigacion 1 Albacete 02071 Spain

Graphe ne nano sheets are a promising scaffold to accommodate S for achievi ng high performa nee Li/S battery. Nano sheet activation is used as a viable strategy to induce a micropore system and further improve the battery performance. Accordingly, chemical activation methods dominate despite the need of multiple stages, which slow down the process in addition to making them tiresome. Here, a three-dimensional (3D) N-doped graphene specimen was physically activated with CO2, a clean and single step process, and used for the preparation of a sulfur composite (A-3DNG/S). The A-3DNG/S composite exhibited outstanding electrochemical properties such as an excellent rate capability (1,000 mAh·g^-1 at 2C), high reversible capacity and cycling stability (average capacity ~ 800 mAh·g^-1 at 1C after 200 cycles), values which exceed those measured in chemically activated graphene. Therefore, these results support the use of physical activation as a simple and efficient alternative to improve the performance of carbons as an S host for high-performance Li-S batteries.

关键词： physical activation 3D-graphene solvothermal microwave synthesis Li-S battery

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Validation of ERA5-Land temperature and relative humidity on four Peruvian glaciers using on-glacier observations

引用

Journal of Mountain Science 2022年第7期19卷 1849-1873页

作者： BONSHOMS Martí UBEDA Jose LIGUORI Giovanni KORNER Philipp NAVARRO alvaro CRUZ Rolando Departamento de Geografía Universidad Complutense de MadridMadrid 28040Spain Guías de Espeleología y Montana Torremocha del Jarama 28189Spain Department of Physics and Astronomy University of BolognaBologna 40127Italy School of Earth Atmosphere and EnvironmentMonash UniversityMelbourne 3800Australia Institute of Hydrology and Meteorology Technische Universitat DresdenDresden 01737Germany ESRI-Espana Madrid 28037Spain Area de Evaluación de Glaciares y Lagunas.Autoridad Nacional del Agua Huaraz 02002Peru

Weather and climate conditions drive the evolution of tropical glaciers which play an important role as water reservoirs for Peruvian inhabitants in the arid coast and semi-arid Andean *** scarcity of long-term high-quality observations over Peruvian glaciers has motivated the extensive use of reanalysis data to describe the climatic evolution of these ***,the representativeness and uncertainties of these reanalysis products over these glaciers are still poorly *** study evaluates the ability of the ERA-Land reanalysis(ERAL)to reproduce hourly and monthly 2 m air temperature and relative humidity(T2m and Rh2m,respectively)over several Peruvian *** compared the ERAL with data from four on-glacier automatic weather stations(AWS),whose hourly time series were completed with nearby stations,for the period January 2017 to December *** indicates a better performance of the reanalysis for T2m(r>0.80)than for Rh2m(~0.4

关键词： ERA5 Land Tropical glaciers Temperature Relative humidity Peru Validation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：