检索结果-南通市图书馆

Prey availability, prey selection, and trophic niche width in the lizard Psammodromus algirus along an elevational gradient

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Current Zoology 2018年第5期64卷 603-613页

作者： Gregorio MORENO-RUEDA Elena melero Senda REGUERA Francisco J, ZAMORA-CAMACHO Ines ALVAREZ-BENITO Departamento de Zoologla Facultad de Ciencias Universidad de Granada Granada E-18071 Spain Departamento de Biogeografia y Carnbio Global Museo Nacional de Ciencias Naturales-CSIC C/Jose Gutierrez Abascal 2 E-28006 Madrid Spain

Mountains imply enormous environmental variation, with alpine habitats entailing harsh environ- ments, especially for ectotherms such as lizards. This environmental variability also may imply variation in prey availability. However, little is known about how lizard trophic ecology varies with elevation. In this study, we analyze diet, prey availability, prey selection, and trophic niche width in the lacertid lizard Psammodromus algirus along a 2,200-m elevational gradient in the Sierra Nevada （SE Spain）. The analysis of fecal samples has shown that Orthoptera, Formicidae, Hemiptera, Coleoptera, and Araneae are the main prey, although, according to their abundance in pitfall traps, Formicidae and Coleoptera are rejected by the lizard whereas Orthoptera, Hemiptera, and Araneae are preferred. Prey abundance and diversity increase with elevation and diet subtly varies along with the elevational gradient. The consumption of Coleoptera increases with elevation probably as a consequence of the lizard foraging more in open areas while basking. The electivity for Araneae increases with elevation. Araneae are rejected in the lowlands--where they are rela- tively abundant--whereas, at high elevation, this lizard positively selects them, despite they being less abundant. The lizard trophic niche width expands with elevation due to concomitant greater prey diversity and hence this lizard feeds on more prey types in highlands. Although no sex difference in diet has been found, the trophic niche is broader in females than males. As a whole, alpine lizards show a trophic niche simitar to that found at lower elevat（ons, suggesting that P. algirus is well adapted to the harsh environment found in alpine areas.

关键词： alpine habitats arthropods mountain ecology niche variation hypothesis trophic ecology

磺酸多相催化剂用于二甲基亚砜中C_6-单糖脱水制5-羟甲基糠醛(英)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

催化学报 2014年第5期35卷 644-655页

作者： Gabriel Morales Juan A.melero Marta Paniagua Jose Iglesias Blanca Hernandez Maria Sanz Department of Chemical and Environmental Technology Universidad Rey Juan Carlos. C/Tulipan s/n. Mostoles. E28933Madrid Spain Department of Chemical and Energy Technology Universidad Rey Juan Carlos. C/Tulipan s/n. Mostoles. E28933 Madrid Spain

Sulfonic acid-functionalized heterogeneous catalysts have been evaluated in the catalytic dehydration of C(,monosaccharides into 5-hydroxymethylfurfural(HMF) using dimethyl sulfoxide(DMSO)as *** commercial resin Amberlyst-70 was the most active catalyst,which was ascribed to its higher concentration of sulfonic acid sites as compared with the other catalysts,and it gave 93 mol%yield of HMF from fructose in 1 *** glucose as the starting material,which is a much more difficult reaction,the reaction conditions(time,temperature,and catalyst loading) were optimized for Amberlyst-70 by a response surface methodology,which gave a maximum HMF yield of 33 mol%at 147 °C with 23 wt%catalyst loading based on glucose and 24 h reaction *** promotes the dehydration of glucose into anhydroglucose,which acts as a reservoir of the substrate to facilitate the production of HMF by reducing side *** reuse without a regeneration treatment showed a gradual but not very significant decay in catalytic activity.

关键词：非均相催化剂羟甲基糠醛二甲基亚砜磺酸脱水单糖响应面分析法 DMSO

Immunotherapy and immunoescape in colorectal cancer

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

World Journal of Gastroenterology 2007年第44期13卷 5822-5831页

作者： Guillermo Mazzolini Oihana Murillo Catalina Atorrasagasti Juan Dubrot Iigo Tirapu Miguel Rizzo Ainhoa Arina Carlos Alfaro Arantza Azpilicueta Carmen Berasain José L Perez-Gracia Alvaro Gonzalez igna.io melero Liver Unit Facultad de Ciencias Biomédicas Universidad Austral Presidente Perón 1500 (1635) Derqui-Pilar Buenos Aires Argentina Centro de Investigación Médica Aplicada and Clínica Universitaria Universidad de Navarra Pamplona Spain

Immunotherapy encompasses a variety of interventions and techniques with the common goal of eliciting tumor cell destructive immune responses. Colorectal carcinoma often presents as metastatic disease that impedes curative surgery. Novel strategies such as active immunization with dendritic cells (DCs), gene transfer of cytokines into tumor cells or administration of immunostimulatory monoclonal antibodies (such as anti-CD137 or anti-CTLA-4) have been assessed in preclinical studies and are at an early clinical development stage. Importantly, there is accumulating evidence that chemotherapy and immunotherapy can be combined in the treatment of some cases with colorectal cancer, with synergistic potentiation as a result of antigens cross-presented by dendritic cells and/or elimination of competitor or suppressive T lymphocyte populations (regulatory T-cells). However, genetic and epigenetic unstable carcinoma cells frequently evolve mechanisms of immunoevasion that are the result of either loss of antigen presentation, or an active expression of immunosuppressive substances. Some of these actively immunosuppressive mechanisms are inducible by cytokines that signify the arrival of an effector immune response. For example, induction of 2, 3 indoleamine dioxygenase (IDO) by IFNγ in colorectal carcinoma cells. Combinational and balanced strategies fostering antigen presentation, T-cell costimulation and interference with immune regulatory mechanisms will probably take the stage in translational research in the treatment of colorectal carcinoma.

关键词： Colorectal carcinoma Immunotherapy Gene therapy interleukin-12 Dendritic cells CD137 indoleamine 2, 3 dioxygenase

On the Role of Aluminium in Segregation and Banding in Multiphase Steel

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

On the Role of Aluminium in Segregation and Banding in Multi...

Transvaginal Approach for Nongynecologic Intraperitoneal Procedures

“第十届中国钢铁年会”暨“第六届宝钢学术年会”

作者： Ennis Bernard Mostert Richard Jimenez-melero Enrique Lee Peter Tata Steel PO Box 10000 1970 CA IJmuiden The Netherlands The School of Materials The University of Manchester

In this work we have concentrated on the effect of aluminium on the formation of segregation during casting and the resultant effect on the microstructure and properties of multiphase *** processing conditions were applied on the basis of model calculations in order to promote and suppress banding in segregated and non-segregated *** is shown that Al segregates preferentially to the solid during solidification,in contrast to the other elements which segregate preferentially to the liquid and increasing Al content leads to a increased partitioning of the other chemical *** has been shown experimentally,and in good agreement with the predicted model calculations,that the effect of segregation second phase banding can be *** tensile behaviour of all the variants is identical up to the yield point,but the non-banded samples show a much higher tensile strength with similar levels of ductility to the banded samples.

关键词： steel casting segregation phase transformation thermomechanical processing

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

International Journal of Clinical Medicine 2014年第21期5卷 1417-1429页

作者： Jose F.Noguera Gonzalo Martin Jose M.Munoz Antonio melero Raul Sanchez Javier Valdivia Marcos Bruna Antonio Salvador Cristobal Zaragoza Minimally Invasive Therapies Unit Consorcio Hospital General Universitario de ValenciaValenciaSpain Department of Surgery Hospital Son LlatzerPalmaSpain Department of Surgery Consorcio Hospital General Universitario de ValenciaValenciaSpain Department of Surgery Hospital Virgen de las NievesGranadaSpain

The minimally invasive surgery through natural orifices has revolutionized the laparoscopic surgery for abdominal procedures. The use of the vaginal approach is not new for gynecologists but it is a new concept for the non-gynecological laparoscopic surgeons. The use of this new approach has been used to perform some procedures and to extract specimens after a laparoscopic surgery, but we don’t know exactly the number of procedures performed until today. There are few papers with clinical experience and a lot of philosophical papers about NOTES. Our aim is to know how and how often we are using this new approach for non-gynecological abdominal minimally invasive procedures. With the revision of the PubMed publications we obtained a total of 268 articles, of which 125 were included in the analysis (46.64%). Cholecystectomy was the procedure more usually performed: there is a large clinical experience with a total of 2432 transvaginal cholecystectomies. Bariatric surgery, colectomy and appendectomy have been other surgical procedures with some clinical experience in the use of the transvaginal approach. Analyzing the publications on transvaginal approach, we observed that the use of the vaginal route for non-gynecological abdominal surgery was not anecdotal, with accumulative experience of more than 3000 patients reported in published studies. The use of the vaginal route has shown its safety, obtaining some additional benefits such as the aesthetic and the faster functional recovery. Dyspareunia, one of the most feared, has not been reported in studies as a concern to consider.

关键词： Transvaginal Surgery Endoscopic Surgery Laparoscopy Flexible Endoscopy

Simulation, Power Quality Analysis and Improvements in a Hot Rolling Mill Using a STATCOM

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy and Power Engineering 2014年第9期8卷 1633-1641页

作者： Pablo Ardura Gonzalo Alonso Jose Manuel Cano Joaquin Gonzalez Nomiella Francisco Pedrayes Femando Briz Manes Fernandez Cabanas Manuel Garcia melero Carlos Hiram Rojas Jose Ramon Gonzadez Suaxez Electrical Engineering Department University ofOviedo Gijon 33204 Spain Global Research & Development Department Arcelor Mittal Aviles 33400 Spain

This paper presents an analysis of the electric power flows in a hot rolling mill plant using a power quality analyzer and developing simulation models with Matlab-Simulink. The model inputs have been taken from process data by the process computer of the plant. Data from different rolling campaigns have been analysed. A STATCOM （static synchronous compensator） with a control strategy based on voltage oriented control with d-q coordinates is used as solution to improve the reactive compensation as well as to minimize the voltage fluctuations and sags effect. The overall electric model has been simulated with the STATCOM to check the improvement in the voltage stability and the consumption.

关键词： Cycloconverter d-q reference frame hot rolling mill STATCOM SVC (static var compensator) VOC (voltage orientedcontrol) voltage sag.

接受纳武单抗治疗的晚期肝细胞癌患者炎症生物标志物与临床转归的相关性

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

临床肝胆病杂志 2020年第9期36卷 2071-2071页

作者：周豪牛俊奇 SANGRO B melero I WADHAWAN S 吉林大学第一医院感染病中心肝病科不详

【据Journal of Hepatology 2020年7月报道】题:接受纳武单抗治疗的晚期肝细胞癌患者炎症生物标志物与临床转归的相关性(作者Sangro B等)程序性死亡因子-1(PD-1)抑制剂纳武单抗治疗晚期肝细胞癌患者具有持久的疗效,较高的安全性,且能够... 详细信息

【据Journal of Hepatology 2020年7月报道】题:接受纳武单抗治疗的晚期肝细胞癌患者炎症生物标志物与临床转归的相关性(作者Sangro B等)程序性死亡因子-1(PD-1)抑制剂纳武单抗治疗晚期肝细胞癌患者具有持久的疗效,较高的安全性,且能够显著提高患者的生存期。该研究回顾性分析了接受纳武单抗治疗的肝细胞癌患者的免疫生物学特征以及生物标志物和临床转归之间可能的相关性。

关键词：临床转归单抗治疗肝细胞癌患者生物标志物晚期肝细胞癌免疫生物学程序性死亡炎症

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

橄榄林中的乡村酒店

现代装饰 2021年第2期 138-145页

作者： David melero Herrera Fausto Santarosa Jua Francisco Mata Dlaz Angel Gabriel Pacheco Rodado Daniel Montoya Lopez Francisco Torreblanca Herrero(摄影) 郭映琴(编译) 不详

该项目将乡间小屋开发成酒店,旨在让其成为乡村旅游热潮的一部分。设计面临的挑战是改造历史悠久的、位于橄榄林中心的建筑。人们在安达卢西亚旅游时,很难不留意到街道上排列有序的绿植,当地人深信其价值并引以为傲。该酒店对当地独特... 详细信息

该项目将乡间小屋开发成酒店,旨在让其成为乡村旅游热潮的一部分。设计面临的挑战是改造历史悠久的、位于橄榄林中心的建筑。人们在安达卢西亚旅游时,很难不留意到街道上排列有序的绿植,当地人深信其价值并引以为傲。该酒店对当地独特的自然环境致以最真诚的敬意,四周的美景令人印象深刻。设计的关键在于使室内外空间相互渗透,不破坏原有建筑的特质。

关键词：安达卢西亚室内外空间原有建筑旅游热潮自然环境酒店印象深刻橄榄

罕见的、类似心内肿块的右冠状动脉巨大血管瘤一例

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

麻醉与镇痛 2010年第1期6卷 99-100页

作者： Estibaliz Alomar-melero Tomas D. Martin Gregory M. Janelle Yong G. Peng 季璐璐(译) 钱燕宁(校) Division of Cardiothoracic Anesthesia GainesvilleFlorida Department of Surgery Division of Thoracic and Cardiovascular Surgery GainesvilleFlorida Department of Anesthesiologw Division of Cardiovascular Aalesthesiology University of Florida College of Medidne GainesvilleFlorida 不详

患者男性，49岁，因在主动脉弓远心端和降胸主动脉近心端一囊状血管瘤，为明确检查而转诊来院，既往有乔布（Job）氏综合征（高IgE综合征）病史，这是一种以反复感染和结缔组织异常为特征的免疫学疾病。

关键词：巨大血管瘤右冠状动脉高IgE综合征肿块结缔组织异常胸主动脉主动脉弓反复感染