检索结果-南通市图书馆

Differential Expression of Genes Related to Fruit Development and Capsaicinoids Synthesis in Habanero Pepper Plants Grown in Contrasting Soil Types

引用

Phyton-International Journal of Experimental Botany 2024年第2期93卷 151-183页

作者： Eduardo Burgos-Valencia Federico García-Laynes Ileana Echevarría-Machado Fatima Medina-Lara Miriam Monforte-González josénarváez-zapata Manuel Martínez-Estévez Unidad de Bioquímica y Biología Molecular de Plantas Centro de Investigación Científica de YucatánCalle 43#130Chuburnáde HidalgoMéridaYucatán97205México Instituto Politécnico Nacional-Centro de Biotecnología Genómica Blvd Del Maestro esq.Elias PiñaReynosaTamaulipas88710México

Habanero pepper(Capsicum chinense Jacq.)is a crop of economic relevance in the Peninsula of *** fruits have a high level of capsaicinoids compared to peppers grown in other regions of the world,which gives them industrial *** is an important factor that affects pepper development,nutritional quality,and capsaicinoid ***,the effect of soil type on fruit development and capsaicinoid metabolism has been little *** work aimed to compare the effect of soils with contrasting characteristics,black soil(BS)and red soil(RS),on the expression of genes related to the development of fruits,and capsaicinoid synthesis using a transcriptomic analysis of the habanero pepper *** growing in RS had bigger fruits and higher expression of genes related to floral development,fruit abscission,and softening which suggests that RS stimulates fruit development from early stages until maturation *** from plants growing in BS had enrichment in metabolic pathways related to growth,sugars,and ***,these fruits had higher capsaicinoid accumulation at 25 days post-anthesis,and higher expression of genes related to the branched-chain amino acids metabolism(ketol-acid reductisomerase KARI),pentose phosphate pathway and production of NADPH(glucose-6-phosphate-1-dehydrogenase G6PDH),and proteasome and vesicular traffic in cells(26S proteasome regulatory subunit T4 RPT4),which suggest that BS is better in the early stimulation of pathways related to the nutritional quality and capsaicinoid metabolism in the fruits.

关键词： Capsicum chinense jacq soil types plant growth environmental conditions fruit quality capsaicinoid metabolism transcriptome

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

Non-invasive methods for liver fi brosis prediction in hemochromatosis:One step beyond

引用

World Journal of Hepatology 2010年第7期2卷 251-255页

作者： Agustin Castiella Eva zapata josé M Alústiza Gastroenterology Service Mendaro Hospital Radiology Service Osatek Donostia

Advances in recent years in the understanding of, and the genetic diagnosis of hereditary hemochromatosis (HH) have changed the approach to iron overload he-reditary diseases. The ability to use a radiologic tool (MRI) that accurately provides liver iron concentration determination, and the presence of non-invasive sero-logic markers for fibrosis prediction (ser um ferritin, platelet count, transaminases, etc), have diminished the need for liver biopsy for diagnosis and prognosis of this disease. Consequently, the role of liv er biopsy in iron metabolism disorders is changing. Furthermore, the irruption of transient elastography to assess liver stiffness, and, more recently, the ability to determine liver f ibrosis by means of MRI elastography will change this role even more, with a potential drastic decline in hepatic biopsies in years to come. This review will provide a brief summary of the different non-invasive methods available nowadays for diagnosis and prognosis in HH, and point out potential new techniques that could come about in the next years for fibrosis prediction, thus avoiding the need for liver biopsy in a greater number of patients. It is possible that liver biopsy will remain useful for the diagnosis of associated diseases, where other non-invasive means are not po-ssible, or for those rare cases displaying discrepancies between radiological and biochemical markers.

关键词： Hemochromatosis Iron overload Liver fibrosis Non-invasive Magnetic resonance imaging Ultrasound elastography

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

Scalar and Dirac quasinormal modes of scalar-tensor-Gauss-Bonnet black holes

引用

Chinese Physics C 2022年第4期46卷 156-163页

作者： Tong-Zheng Wang Wei-Liang Qian Juan Fernando zapata zapata Kai Lin Hubei Subsurface Multi-scale Imaging Key Laboratory Institute of Geophysics and GeomaticsChina University of GeosciencesWuhan 430074China Escola de Engenharia de Lorena Universidade de São Paulo12602-810LorenaSPBrazil Faculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista12516-410GuaratinguetáSPBrazil Center for Gravitation and Cosmology College of Physical Science and TechnologyYangzhou UniversityYangzhou 225009China

This study explores the scalar and Dirac quasinormal modes pertaining to a class of black hole solutions in the scalar-tensor-Gauss-Bonnet *** black hole metrics in question are novel analytic solutions recently derived in the extended version of the theory,which effectively follows at the level of the action of string *** to the existence of a nonlinear electromagnetic field,the black hole solution possesses a nonvanishing magnetic *** particular,the metric is capable of describing black holes with distinct characteristics by assuming different values of the ADM mass and the magnetic *** study investigates the scalar and Dirac perturbations in these black hole spacetimes;in particular,we focus on two different types of solutions,based on distinct horizon *** properties of the complex frequencies of the obtained dissipative oscillations are investigated,and the stability of the metric is subsequently *** also elaborate on the possible implications of this study.

关键词： quasinormal modes scalar-tensor-Gauss-Bonnet theory modified gravity

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

Avian-power line interactions in the Gobi Desert of Mongolia:are mitigation actions effective?

引用

Avian Research 2021年第3期12卷 382-390页

作者： Adrian Orihuela-Torres Juan MPérez-García Zebensui Morales-Reyes Lara Naves-Alegre joséASánchez-zapata Esther Sebastián-González Área de Ecología Departamento de Biología AplicadaUniversidad Miguel Hernández de ElcheAvda.Universidad s/n03202 ElcheAlicanteSpain Departamento de Ecología Universidad de AlicanteCtra.San Vicente del Raspeig s/n03690 San Vicente del RaspeigAlicanteSpain

Background:Electrocution and collisions on power lines are among the leading causes of non-natural mortality for *** lines are exponentially increasing,particularly in developing countries,but mitigation strategies to prevent bird mortality are *** combines a recently increased power line network,an abundant raptor population,a dangerous crossarm configuration and a habitat with no natural perches,producing many bird-power line *** aim is to assess the bird mortality caused by power lines in the Gobi Desert of Mongolia,to determine the factors increasing the risk of bird electrocution,and to evaluate the effectiveness of used retrofitting ***:In July 2019 we covered 132.9 km of 15 kV power lines checking 1092 *** also conducted bird tran-sects to record raptor and corvid richness and abundance,to assess species vulnerability to ***:We recorded 76 electrocuted birds of 7 *** rate was 6.96 birds/100 *** most affected species were Common Raven(Corvus corax)and Upland Buzzard(Buteo hemilasius),highlighting the electro-cution of 5 endangered Saker Falcons(Falco cherrug).By contrast,we only recorded 8 individuals of 5 species collid-ing with wires,the most affected being Pallas’s Sandgrouse(Syrrhaptes paradoxus).About 76.1%of sampled poles had some mitigation *** these,96.6%were brush perch deflectors and 3.4%rotating-mirrors perch *** found differences in electrocution rates among crossarm configurations,with the strain insulator with one jumper being the most ***,we found no correlation between bird abundance and electrocution rates,suggesting that some species are more sensitive to *** no differences in total bird electrocu-tion rates were detected between poles with and without perch deterrents,when bird size is considered,deterrents reduced the mortality rate of small birds,while they were ineffective for medium-sized

关键词： Collision Crossarm configuration Electrocution Electric infrastructures Perch deterrent Power line network Raptor

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

Modeling height growth for teak plantations in Colombia using the reducible stochastic differential equation approach

引用

Journal of Forestry Research 2021年第3期32卷 1035-1045页

作者： Sergio Orrego Cristian Montes Héctor IRestrepo Bronson PBullock Mauricio zapata Departamento de Ciencias Forestales Universidad Nacional de ColombiaSede MedellínCra 65 No 59A-110MedellínColombia Warnell School of Forestry and Natural Resources University of GeorgiaAthensGA 30602USA

Teak(Tectona grandis L.f.)plantations are increasingly being established in tropical regions to meet a rising demand for its highly valued *** plantations have been established in the Atlantic Coastal Plain region of Colombia,a region climatically suitable for teak growth by having a monsoon climate with a unimodal precipitation *** diameter at breast height(DBH,1.3 m above ground)and mean top height,periodically measured over a 17-year period in 44 permanent sampling plots of size 0.06 and 0.10 ha,were used in this study.A stochastic differential equation(SDE),along with a Bertalanffy–Richards-type height growth model,was used to model and estimate top height growth of teak plantations in *** noise and height measurement errors were explicitly considered as the main uncertainty sources of mean top height *** best model for estimating mean top height,based on statistical performance and biological rationale,had the asymptote defined as a local parameter and the growth rate and shape specified as global *** model outperformed its counterpart that had the growth rate specified as a local parameter and asymptote and shape as global *** selected model also outperformed alternative approaches such as the mixed-effects model,generalized algebraic difference approach,and the dummy variable *** trajectories for the mean top height of teak in Colombia are biologically sound based on the measured height series and previous studies in Latin *** suggest that most of the uncertainty associated with the mean top height growth of teak plantations in Colombia was largely explained by environmental *** best estimated model using the SDE approach can be useful for predicting height growth and evaluating site productivity of teak plantations in Colombia and in neighbouring countries with biophysical characteristics similar to those where teak has been planted in Colombia.

关键词： Mean top height Stochastic differential equation Forest productivity Timber production Timberland investment

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

Spatiotemporal patterns of burned areas,fire drivers,and fire probability across the equatorial Andes

引用

Journal of Mountain Science 2021年第4期18卷 952-972页

作者： Xavier zapata-RiOS Carmen LOPez-FABARA Abigail NAVARRETE Sandra TORRES-PAGUAY Miguel FLORES Department of Civil and Environmental Engineering Escuela Politecnica NacionalLadron de Guevara E11-253P.O.Box 17-01-2759QuitoEcuador Center for Research and Water Resources Studies(CIERHI) Escuela Politecnica NacionalLadron de Guevara E11-253P.O.Box 17-01-2759QuitoEcuador Faculty of Agricultural Sciences Universidad Central del EcuadorAv.UniversitariaP.O.Box 17-03-100QuitoEcuador Modeling Optimization and Inferential Statistics Group(MODES)Department of MathematicsEscuela Politecnica NacionalLadron de Guevara Ell-253P.O.Box 17-01-2759QuitoEcuador

Field-based fire studies in the equatorial Andes indicate that fires are strongly associated with biophysical and anthropogenic ***,fire controls and fire regimes at the regional scale remain ***,this paper describes spatial and temporal burned-area patterns,identifies biophysical and anthropogenic fire drivers,and quantifies fire probability across 6°of latitude and 3°of longitude in the equatorial *** spatial and temporal burned-area analysis was carried out based on 18 years(2001-2018)of the MCD64 A1 MODIS burned-area ***,topography,vegetation,and anthropogenic variables were integrated in a logistic regression model to identify the significance of explanatory variables and determine fire occurrence probability.A total of 5779 fire events were registered during the 18 years of this study,located primarily along the western cordillera of the Andes and spreading from North to ***-eight percent of these fires took place within two fire hotspots located in the northwestern and southwestern corners of the study ***-nine percent occurred during the second part of the year,between June and *** largest density of fires was primarily located on herbaceous vegetation and *** show that mean monthly temperature,precipitation and NDVI during the prefire season,the location of land cover classes such as forest and agriculture,distance to roads and urban areas,slope,and aspect were the most important determinants of spatial and temporal fire *** logistic regression model achieved a good accuracy in predicting fire probability(80%).Probability was higher in the southwestern and northern corners of the study area,and lower towards the north in the western and eastern piedmonts of the *** analysis contributes to the understanding of fires in mountains within the *** results here presented have the potential to contribute to fire management and control in the regi

关键词： MODIS MCD64A1 Spectral vegetation indices Pre-fire season NDVI and precipitation Remote sensing

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

Enhanced magnetic modulation of light polarization exploiting hybridization with multipolar dark plasmons in magnetoplasmonic nanocavities

引用

Light(Science & Applications) 2020年第1期9卷 1547-1560页

作者： Alberto Lopez-Ortega Mario zapata-Herrera Nicolo Maccaferri Matteo Pancaldi Mikel Garcia Andrey Chuvilin Paolo Vavassori CIC nanoGUNE-BRTA Donostia-San SebastianDonostia 20018Spain Department of Physics and Materials Science University of LuxembourgL-1511 LuxembourgLuxembourg Department of Physics Stockholm University10691 StockholmSweden IKERBASQUE Basque Foundation for ScienceBilbao 48013Spain

Enhancing magneto-optical effects is crucial for reducing the size of key photonic devices based on the non-reciprocal propagation of light and to enable active ***,we disclose a currently unexplored approach that exploits hybridization with multipolar dark modes in specially designed magnetoplasmonic nanocavities to achieve a large enhancement of the magneto-optically induced modulation of light *** broken geometrical symmetry of the design enables coupling with free-space light and hybridization of the multipolar dark modes of a plasmonic ring nanoresonator with the dipolar localized plasmon resonance of the ferromagnetic disk placed inside the *** hybridization results in a low-radiant multipolar Fano resonance that drives a strongly enhanced magneto-optically induced localized *** large amplification of the magneto-optical response of the nanocavity is the result of the large magneto-optically induced change in light polarization produced by the strongly enhanced radiant magneto-optical dipole,which is achieved by avoiding the simultaneous enhancement of reemitted light with incident polarization by the multipolar Fano *** partial compensation of the magnetooptically induced polarization change caused by the large re-emission of light with the original polarization is a critical limitation of the magnetoplasmonic designs explored thus far and that is overcome by the approach proposed here.

关键词： polar light enable

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

Very large hidden genetic diversity in one single tumor:evidence for tumors-in-tumor

引用

National Science Review 2022年第12期9卷 124-134页

作者： Bingjie Chen Xianrui Wu Yongsen Ruan Yulin Zhang Qichun Cai Luis zapata Chung-I Wu Ping Lan Haijun Wen State Key Laboratory of Biocontrol School of Life Sciences Sun Yat-sen University GMU-GIBH Joint School of Life Sciences Guangzhou Medical University Evolutionary Genomics and Modelling Lab Centre for Evolution and Cancer The Institute of Cancer Research Department of Colorectal Surgery The Sixth Affiliated Hospital Sun Yat-sen University Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases The Sixth Affiliated Hospital Sun Yat-sen University Cancer Center Clifford HospitalJinan University

Despite the concern of within-tumor genetic diversity,this diversity is in fact limited by the kinship among cells in the ***,genomic studies have amply supported the ’Nowell dogma’ whereby cells of the same tumor descend from a single progenitor *** parallel,genomic data also suggest that the diversity could be> 10-fold larger if tumor cells are of multiple *** develop an evolutionary hypothesis that a single tumor may often harbor multiple cell clones of independent origins,but only one would be large enough to be *** test the hypothesis,we search for independent tumors within a larger one(or tumors-in-tumor).Very high density sampling was done on two cases of colon *** 1 indeed has 13 independent clones of disparate sizes,many having heavy mutation burdens and potentially highly *** Case 2,despite a very intensive search,only two small independent clones could be *** two cases show very similar movements and metastasis of the dominant *** initially move actively in the expanding tumor but become nearly immobile in late *** conclusion,tumors-in-tumor are plausible but could be very demanding to *** their small sizes,they can enhance the within-tumor diversity by orders of *** increases may contribute to the missing genetic diversity associated with the resistance to cancer therapy.

关键词： intratumoral heterogeneity tumor origins cancer evolution tumors-in-tumor

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Three-dimensional simulation of horseshoe vortex and local scour around a vertical cylinder using an unstructured finite-volume technique

引用

International Journal of Sediment Research 2020年第3期35卷 295-306页

作者： Wei Zhang Miguel Uh zapata Xin Bai Damien Pham-Van-Bang Kim Dan Nguyen Laboratory for Hydraulics Saint-Venant (LHSV ENPC-EDF R&D-Cerema)University Paris-Est CONACYT Centro de Investigacion en Matematicas A.C.(CIMAT)Unidad Merida 3. Laboratory for Hydraulics and Environment (LHE)Institut National de La Recherche ScientifiqueUniversite Du Quebec

A Large Eddy Simulation model is developed to simulate the hydrodynamics and scour process around a circular *** Navier-Stokes solver is based on the projection method and a second-order unstructured finite-volume method.A sigma-coordinate system is used to obtain an accurate representation of the evolution of the sediment-water *** erosion is simulated by solving the sediment continuity equation using a mass-conservating sand-slide algorithm and a bedload transport rate,which is based on a description of physical processes(Engelund & Freds(?)e,1976).Simulations of flow around a vertical cylinder for free-slip bed,rigid bed,and live-bed cases are *** mean velocity profile and shear stress validate the accuracy of this *** vortex and lee-wake vortex shedding structure are simulated,and the results are thoroughly discussed in *** formation and the temporal development of the scour hole and other topographic bed features are successfully *** current paper reports the first known investigation of both scour evolution and coherent structure using large-eddy simulation.

关键词： Non-hydrostatic flows Horseshoe vortex Wake region Scouring Bedload transport

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Selective sphincteroplasty of the papilla in cases at risk due to atypical anatomy

引用

World Journal of Gastroenterology 2007年第22期13卷 3106-3111页

作者： F Mugica G Urdapilleta A Castiella A Berbiela F Alzate E zapata L Zubiaurre P Lopez JI Arenas Gastroenterology Department Donostia Hospital San Sebastian Spain Department Donostia Hospital San Sebastian Spain Gastroenterology Department Bajo Deva Hospital Spain Anaesthesia Department Donostia Hospital San Sebastian Spain

AIM： To analyze the indications, efficacy and safety of sphincteroplasty in our centre.METHODS： A retrospective study of sphincteroplasty in 53 cases of papilla at high risk was performed in 2004-2006. The procedure consisted of duodenoscopy with Olympus TJF 145 Videoduodenoscope, approach to the biliary tract using a catheter with a guidewire, and dilatation of the papilla with a dilatation balloon catheter using a syringe with a manometer for control of the filling pressure.RESULTS： The indications included intradiverticular papilla in 26 patients （49%）, stenosis of a previous sphincterotomy in 19 patients （35.8%）, small size of the papilla in 4 patients （7.5%）, Billroth R gastrectomy in 3 patients （5.6%）, and coagulopathy in one patient （1.9%）. The efficacy was 97.8%, with all the calculi extracted from the common bile duct in 84.4% of the patients, even though 21 of the patients （39.6%） had calculi with a diameter equal to or greater than 10 ram. Seven patients （13.2%） presented complications： haemorrhage in 1 patient （1.9%） and mild pancreatitis in 6 patients （11.3%）. The mean hospital stay in case of complications was of 3 ± 0.63 d.CONCLUSION： Sphincteroplasty is highly effective, with a compllcation rate similar to that of sphincterotomy, furthermore, the complications are of low clinical importance. The use of the 10 mm balloon makes it possible to extract calculi with a diameter of over 15 mm and to extract more than 3 calculi without increasing the rate of complications and reduces the need to resort to lithotripsy or rescue sphincterotomy.

关键词： Sphincteroplasty Hydrostatic dilatation of the papilla Choledocholithiasis Sphincterotomy Function of the sphincter of Oddi Acute pancreatitis Intradiverticular papilla

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

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：