检索结果-南通市图书馆

Phototropins and Their LOV Domains：Versatile Plant Blue-Light Receptors

Journal of Integrative Plant Biology 2007年第1期49卷 4-10页

作者： Winslow R. Briggs Tong-Seung Tseng Hae-Young cho Trevor E. Swartz stuart Sullivan Roberto A. Bogomolni Eirini Kaiserli John M. christie Department of Plant Biology Carnegie Institution of Washington Stanford CA 94305 USA Plant Science Group Division of Biochemistry and Molecular Biology Institute of Biomedical and Life Sciences University of Glasgow Glasgow G12 8QQ UK Department of chemistry University of California Santa Cruz CA 95064 USA

The phototropins phot1 and phot2 are plant blue-light receptors that mediate phototropism, chloroplast movements, stomatal opening, leaf expansion, the rapid Inhibition of hypocotyl growth in etiolated seedlings, and possibly solar tracking by leaves in those species in which It occurs. The phototroplns are plasma membrane-associated hydrophilic proteins with two chromophore domains （designated LOV1 and LOV2 for their resemblance to domains In other signaling proteins that detect light, oxygen, or voltage） in their Nterminal half and a classic serine/threonlne kinase domain in their c-terminal half. Both chromophore domains bind flavin mononucleotide （FMN） and both undergo light-activated formation of a covalent bond between a nearby cystelne and the c（4a） carbon of the FMN to form the signaling state. LOV2-cystelnyl adduct formation leads to the release downstream of a tightly bound amphlpathlc α-helix, a step required for activation of the klnase function. This cysteinyl adduct then slowly decays over a matter of seconds or minutes to return the photoreceptor chromophore modules to their ground state. Functional LOV2 is required for light-activated phosphorylation and for various blue-light responses mediated by the phototroplns. The function of LOV1 is still unknown, although It may serve to modulate the signal generated by LOV2. The LOV domain Is an ancient chromophore module found In a wide range of otherwise unrelated proteins In fungi and prokaryotes, the latter Including cyanobacterla, eubacterla, and archaea. Further general reviews on the phototropins are those by celaya and Liscum （2005） and christie and Briggs （2005）.

关键词： blue-light receptor flavin-cysteinyl adduct LOV domain phototropin phototropism

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

Regional scientific research benefits threatened-species conservation

引用

National Science Review 2019年第6期6卷 1076-1079页

作者： Yisi Hu Zhenhua Luo colin A.chapman stuart L.Pimm Samuel T.Turvey Michael J.Lawes carlos A.Peres Tien Ming Lee Pengfei Fan School of Life Sciences Sun Yat-Sen University School of Life Sciences Central China Normal University Department of Anthropology and School of Environment Mc Gill University School of Life Sciences University of Kwa Zulu-Natal The college of Life Sciences Northwest University Nicholas School of the Environment Duke University

Although conventional wisdom considers knowledge of threatened species’ ecology and status essential for conservation, few studies demonstrate this in a quantitative way across many species and within the same political entity. Here,we evaluated the impacts of scientific research against conservation interventions(including funding) and specieslevel correlates, accounting for phylogenetic relatedness, on the conservation

关键词： china Regional scientific research benefits threatened-species conservation

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

现代在线腐蚀监测技术的实践经验

引用

石油化工腐蚀与防护 1994年第3期11卷 46-49页

作者： c.M.stuart 徐晓

一种有效的化学处理方法对维持冷却水系统高效、可靠的运行是很重要的。处理方法选择不当将导致生产率、热交换效率降低。

关键词：水处理在线检测腐蚀冷却水

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

黑客大曝光网络安全机密与解决方案 4

引用

2003年

作者：（美）stuart Mcclure等刘江等译

本书是计算机安全领域的百科全书。全书从攻击者和防御者的不同角度系统地阐述了计算机和网络的入侵手段及相应的防御措施。

ISBN: (数字)7894940003

ISBN: (纸本)7894940003

本书是计算机安全领域的百科全书。全书从攻击者和防御者的不同角度系统地阐述了计算机和网络的入侵手段及相应的防御措施。

关键词：安全技术计算机网络

来源：畅想之星图书光盘版（南... 评论

在线全文

畅想之星图书光盘版（南通市图书馆镜像）

学校读者我要写书评

暂无评论

Pancreas transplantation: The Wake Forest experience in the new millennium

引用

World Journal of Diabetes 2014年第6期5卷 951-961页

作者： Jeffrey Rogers Alan c Farney Giuseppe Orlando Samy S Iskandar William Doares Michael D Gautreaux Scott Kaczmorski amber Reeves-Daniel Amudha Palanisamy Robert J Stratta Department of General Surgery Wake Forest Baptist Medical CenterWinston Salem Department of Pathology Wake Forest Baptist Medical CenterWinston-Salem Department of Pharmacy Wake Forest Baptist Medical CenterWinston-Salem Department of Internal Medicine (Nephrology) Wake Forest Baptist Medical CenterWinston-Salem

AIM: To investigate the Wake Forest experience with pancreas transplantation in the new millennium with attention to surgical techniques and immunosuppression. METHODS: A monocentric, retrospective review of outcomes in simultaneous kidney-pancreas transplant(SKPT) and solitary pancreas transplant(SPT) recipients was performed. All patients underwent pancreas transplantation as intent-to-treat with portal venous and enteric exocrine drainage and received depleting antibody induction; maintenance therapy included tapered steroids or early steroid elimination with my-cophenolate and tacrolimus. Recipient selection was based on clinical judgment whether or not the patient exhibited measureable levels of c-peptide. RESULTS: Over an 11.25 year period, 202 pancreas transplants were performed in 192 patients including 162 SKPTs and 40 SPTs. A total of 186(92%) were primary and 16(8%) pancreas retransplants; portalenteric drainage was performed in 179 cases. A total of 39 pancreas transplants were performed in African American(AA) patients; of the 162 SKPTs, 30 were performed in patients with pretransplant c-peptide levels > 2.0 ng/m L. In addition, from 2005-2008, 46 SKPT patients were enrolled in a prospective study of single dose alemtuzumab vs 3-5 doses of rabbit antithymocyte globulin induction therapy. With a mean follow-up of 5.7 in SKPT vs 7.7 years in SPT recipients, overall patient(86% SKPT vs 87% SPT) and kidney(74% SKPT vs 80% SPT) graft survival rates as well as insulin-free rates(both 65%) were similar(P = NS). Although mortality rates were nearly identical in SKPT compared to SPT recipients, patterns and timing of death were different as no early mortality occurred in SPT recipients whereas the rates of mortality following SKPT were 4%, 9% and 12%, at 1-, 3- and 5-years follow-up, respectively(P cause of graft loss in SKPT recipients was death with a functioning graft whereas the major cause of graft loss following SPT was acute and

关键词： Alemtuzumab Mycophenolate mofetil Pancreas transplantation Portal-enteric Rabbit anti-thymocyte globulin Simultaneous kidney-pancreas transplantation Solitary pancreas transplantation Steroid elimination Surveillance biopsy Tacrolimus

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

Prevalence of viral HBV and HcV among different group patients in Gujrat Pakistan

引用

Advances in Bioscience and Biotechnology 2012年第4期3卷 423-436页

作者： Muhammad Irshad Muhammad Naem Raza Zahid Anwar Nadia Ikram amber Afroz Hafiz Muhammad Nasir Iqbal Department of Biochemistry and Molecular Biology University of Gujrat Pakistan Department of Biochemistry NSMC University of Gujrat Pakistan Department of chemistry and Biochemistry University of Agriculture Faisalabad Pakistan

In this study we analyzed blood samples collected from 400 high risk patients for the prevalence of an inflammatory viral disease hepatitis B virus (HBV) and hepatitis c virus (HcV) with the help of standard kit assay and Enzyme-linked immunosorbent assay (ELISA). All the samples were selected randomly from the various places of District Gujrat, Pakistan. All the selected cases were first divided into four groups according to the age and sex (Group 1, Male below age 35 years;Group 2, Male above age 35 years;Group 3, Female below age 35 years;Group 4, Female above age 35 years), each group was comprised of 100 individual patients and analyzed for different parameters for the presence of HBV and HcV in comparison with positive and negative controls. The prevalence of HBV and HcV was higher in groups 2 (22%) and 4 (39%) respectively. Assay profile revealed that the incidence of HcV was higher in female patients as compare to the male patients. The present study indicates that more than 60% of the cirrhosis and hepatocellular carcinoma in the Region is attributable to hepatitis B virus (HBV) or hepatitis c virus (HcV) infection.

关键词： HBV HcV Liver Inflammation LFTs ELISA ALP Bilirubin

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

Taxonomic revision of genus Rohanixalus(Anura:Rhacophoridae)in china with description of one new species

引用

Zoological Research 2023年第6期44卷 1146-1151页

作者： Xiao-Long Liu Jun-Kai Huang Bryan L.stuart Ren-Da Ai Justin M.Bernstein chatmongkon Suwannapoom Siriwadee chomdej Jing che Zhi-Yong Yuan Integrative Science center of Germplasm creation in Western china(chongqing)Science city Biological Science Research CenterSouthwest UniversityChongqing 400715China Key Laboratory of Freshwater Fish Reproduction and Development(Ministry of Education) School of Life SciencesSouthwest UniversityChongqing 400715China Guangxi Key Laboratory of Rare and Endangered Animal Ecology Guangxi Normal UniversityGuilinGuangxi 541004China North carolina Museum of Natural Sciences Raleigh NC 27601USA Key Laboratory for conserving Wildlife with Small Populations in Yunnan Southwest Forestry UniversityKunmingYunnan 650224China center for Genomics University of KansasLawrenceKansas 66044USA Division of Fishery School of Agriculture and Natural ResourcesUniversity of PhayaoPhayao 56000Thailand Department of Biology Faculty of ScienceChiang Mai UniversityChiang Mai 50200Thailand State Key Laboratory of Genetic Resources and Evolution Yunnan Key Laboratory of Biodiversity and Ecological Conservation of Gaoligong MountainKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China Southeast Asia Biodiversity Research Institute Chinese Academy of SciencesYezinNay Pyi Taw 05282Myanmar

DEAR EDITOR,Based upon morphological and molecular evidence,the authors revised the genus Rohanixalus Biju,Garg,Gokulakrishnan,chandrakasan,Thammachoti,Ren,Gopika,Bisht,Hamidy and Shouche,2020(Anura:Rhacophoridae)in china through describing one new species,adding one species to the fauna(***)and supplementing data on one species(Rohanixalus hansenae;Supplementary Materials).

关键词： Anura species Taxonomic

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

Kinetics of <i>candida albicans</i>and <i>Staphylococcus aureus</i>Biofilm Initiation on Herpes Simplex Virus (HSV-1 and HSV-2) Infected cells

引用

Advances in Microbiology 2020年第11期10卷 583-598页

作者： Balbina J. Plotkin Ira M. Sigar amber Kaminski Jessica Kreamer Brent Ito Joan Kacmar Department of Microbiology and Immunology Midwestern University Downers Grove USA

This study examines the kinetics of S. aureus and c. albicans adherence as it relates to HSV replication and corresponding dynamic display of shared receptors. HeLa cells infected for various times with HSV-1 gL86 or HSV-2 333gJ-(MOI 50) were incubated with S. aureus ATcc 25923 or c. albicans yeast and cFU measured. Over time, S. aureus adherence to HSV-1 infected cells was relatively stable for 45 min then decreased to 0.8 of virus-free control, before cycling at 15-to-30 min intervals. In contrast, staphylococcal adherence to HSV-2 infected cells proceeded at a more gradual rate, increasing to control levels at ~105 min before decreasing to a nadir at 165 min. Yeast adherence to HSV-1 infected cells remained relatively unchanged for the first 75 min then increased 2-fold before returning to its original level. This pattern is repeated over the next 90 min. While a similar pattern with c. albicans and HSV-2 was measured, it occurred more rapidly. Our model shows that while the interaction of both HSV-1 and HSV-2 with S. aureus is both dynamic and inhibitory, c. albicans interaction with HSV-2 is more permissive than HSV-1. However, the interaction of both microbes with HSV-infected cells in this model system appears to be independent of α5B1, cD36 and HSP60 viral-regulated receptor expression. These findings indicate that microbiome interactions across taxonomic kingdoms are more complex than previously thought.

关键词： Polymicrobic Microbiome Biofilm Adherence Herpes Simplex Virus Staphylococcus aureus candida albicans

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

甘肃临夏盆地中新世鬣狗科一新属新种

引用

古脊椎动物学报（中英文） 2022年第2期60卷 81-116页

作者： Henry GALIANO 曾志杰 Nikos SOLOUNIAS 王晓鸣邱占祥 stuart cWHITE 美国Maxilla and Mandible有限公司纽约10024 美国加州大学伯克利分校加州大学古生物博物馆伯克利94720 美国纽约自然历史博物馆纽约10024 美国洛杉矶自然历史博物馆洛杉矶90007 美国纽约理工大学医学院纽约11568 中国科学院古脊椎动物与古人类研究所北京100044 中国科学院大学北京100049 美国加州大学洛杉矶分校牙医学院洛杉矶90095

非洲土狼(Proteles cristatus)是鬣狗科中牙齿最为退化的一个种类,与其他化石及现生鬣狗物种粗壮的碎骨型牙齿形态截然不同。它的化石记录可以追溯到上新世,但尚缺少中间过渡形态的化石记录,以致生物学家对这一罕见的食蚁性食肉目动物... 详细信息

非洲土狼(Proteles cristatus)是鬣狗科中牙齿最为退化的一个种类,与其他化石及现生鬣狗物种粗壮的碎骨型牙齿形态截然不同。它的化石记录可以追溯到上新世,但尚缺少中间过渡形态的化石记录,以致生物学家对这一罕见的食蚁性食肉目动物的起源演化缺乏清楚的认知。描述了鬣狗科化石一新属甘肃鬣狗(Gansuyaena),并讨论其对于土狼起源的重要指示。所记述的标本为从海外收回的甘肃临夏盆地新近纪材料,包括两件破损头骨和下颌。基于甘肃鬣狗的形态特征,进行了一系列的系统发育分析,结果显示Proteles,Mesoviverrops,Plioviverrops和Gansuyaena组成一个相对原始的鬣狗类群,即土狼亚科(Protelinae)。而且,新的形态证据支持土狼亚科在形态粗壮的鬣狗亚科出现之前就已形成一个独立的支系。

关键词：甘肃临夏盆地中晚中新世鬣狗科土狼亚科

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

copper-based oxygen carriers supported with alumina/lime for the chemical looping conversion of gaseous fuels

引用

Journal of Energy chemistry 2017年第5期26卷 891-901页

作者： Syed K Haider María Erans Felix Donat Lunbo Duan stuart A Scott Vasilije Manovic Edward J Anthony combustion and ccS centre Cranfield UniversityBedfordshire MK43 0ALUK Key Laboratory of Energy Thermal conversion and control Ministry of EducationSchool of Energy and EnvironmentSoutheast UniversityNanjing 210096JiangsuChina Department of Engineering University of CambridgeTrumpington StreetCambridgeUK

copper（Ⅱ） oxide in varying ratios was combined with either an alumina-based cement（Al300）, or caO derived from limestone as support material in a mechanical pelletiser. This production method was used to investigate its influence on possible mechanical and chemical improvements for oxygen carriers in chemical looping processes. These materials were tested in a lab-scale fluidised bed with cO or cH;as a reducing gas at 950 °c. As expected, the oxygen carriers containing a greater ratio of support material exhibited an enhanced crushing strength. Oxygen carriers comprised of a 1:3 ratio of support material to active cuO exhibited increased crushing strength by a minimum of 280% compared to pure cuO *** oxygen carriers exhibited a high cO conversion yield and were fully reducible from cuO to cu. For the initial redox cycle, Al300-supported oxygen carriers showed the highest fuel and oxygen carrier conversion. The general trend observed was a decline in conversion with an increasing number of redox *** the case of caO-supported oxygen carriers, all but one of the oxygen carriers suffered *** agglomeration was more severe in carriers with higher ratios of cuO. Oxygen carrier cu25Al75（75 wt% aluminate cement and 25 wt% cuO）, which did not suffer from agglomeration, showed the highest attrition with a loss of approximately 8% of its initial mass over 25 redox cycles. The reducibility of the oxygen carriers was limited with cH;in comparison to cO. cH;conversion were 15%-25% and 50% for cu25ca75（25 wt% cuO and 75 wt% caO） and cu25Al75, respectively. cu25ca75 demonstrated improved conversion, whereas cu25Al75 exhibited a trending decrease in conversion with increasing redox cycles.

关键词： chemical-looping Oxygen carrier copper carbon capture

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：