检索结果-南通市图书馆

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

奎宁治疟疾的欧西历史

上海中医药杂志 1955年第8期 32-33页

作者： m.smith 蒋亦凡

欧洲在希臁医圣希波克拉第时,疟疾在临症上已有认识,希氏分为隔日热、每日热及三日热三型。欧西第一位医生家西苏Celsus 有较明显的记载:三日型者,先寒战,次发热,热退,隔二日无症状,第三日病又发作。那时对疟疾的原因,学说纷纭,希氏Herd... 详细信息

欧洲在希臁医圣希波克拉第时,疟疾在临症上已有认识,希氏分为隔日热、每日热及三日热三型。欧西第一位医生家西苏Celsus 有较明显的记载:三日型者,先寒战,次发热,热退,隔二日无症状,第三日病又发作。那时对疟疾的原因,学说纷纭,希氏Herdotus 曾提起埃及用蚊帐,而非洲的几种土语,蚊舆疟同一名称。但疟由蚊传染之关系,则无人能想到。疟疫舆水泽有关系,古人似乎有些初步认识,但观都市之兴建,往往择地于水泽的边沿,则对疟源之观念模糊,可以想见。

关键词：天主教基督教南美洲

Experimental Analysis of Atypically Long Finned Oscillating Heat Pipe for Ventilation Waste Heat Recovery Application

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Thermal Science 2020年第3期29卷 667-675页

作者： mAHAJAN Govinda CHO Heejin smith Aaron THOmPSON Scott m. Rheem manufacturing MontgomeryAL 36109USA Department of mechanical Engineering Mississippi State UniversityMsissippi StateMS 39762USA Department of mechanical Engineering Auburn UniversityAubumnAL 36849USA

Oscillating heat pipes(OHP)which are constructed from a serpentine-arranged capillary tube possess a desirable aerodynamic form factor and provide for relatively high heat transfer rates via cyclic evaporation and condensation of an encapsulated working fluid with no internal wicking structure *** last two decades,OHP has been extensively investigated for its potential application in thermal management of various *** study presents an experimental investigation on the heat transfer performance of an atypically long finned *** heat transfer performance of the proposed OHP was analyzed and compared with a bare tube OHP with similar overall *** show that a unit row of finned OHP filled with n-pentane with fill ratio of 70%can recover up to(400±40)W of heat from a typical waste exhaust air *** additional pressure drop due to fins was estimated to be(6.8±2)Pa resulting in an increase of 1–2 W of fan power *** average heat recovery rate via finned OHP was found to be almost 80%more than bare tube OHP filled with same working fluid with same fill ratio.

关键词： oscillating heat pipe waste heat recovery ventilation

Preventing surgical site infection using operating room bundle of care in patients undergoing elective exploratory laparotomy cholecystectomy surgery

在线全文

学校读者我要写书评

暂无评论

Frontiers of Nursing 2023年第3期10卷 335-345页

作者： Erika leslie R magat Josephine m De Leon Graduate School Centro Escolar UniversityManila 1005Philippines School of Nursing Centro Escolar UniversityManila 1005Philippines

Objective:Surgical procedures manifest immense risks to *** of the adverse events that healthcare professionals see as a threat to the patient’s health is the development of complications known as surgical site infection(SSI).Although several effor ts are being under taken to determine the proper means to reduce such complications,there is still a high incidence of SSI *** requires knowledge in infection control and high precision in maintaining a clean surgical *** study tested the effectiveness of an operating room(OR)bundle of care in preventing SSI in patients undergoing elective exploratory laparotomy cholecystectomy ***:A quasi-experimental pretest and posttest design was utilized to determine its *** study was composed of 60 par ticipants divided into two groups:30 subjects were selected to receive the OR bundle of care,while the other 30 subjects received the usual *** groupings were determined through a systematic random sampling *** OR bundle of care had three interventions,namely:(1)maintaining perioperative normothermia,(2)no pre-operative surgical site hair removal,and(3)changing gloves before abdominal wall *** patients were evaluated using the standard instrument,Bates–Jensen Wound Assessment Tool(BWAT)in the post-intervention phases of the wound healing process,which are as follows:hemostasis,inflammatory,and proliferative *** describe the difference in the patients’wound status after implementation of the OR bundle of care in each post-intervention phase,Friedman’s test was *** describe the difference in the patients’wound status in both groups after implementation of the OR bundle of care,the mann–Whitney U test was ***:The patient’s wound status was lower,indicating a more healing *** between the wound status of the control and the experimental group were observed on the third postoperative *** indicates that the experimental gro

关键词： bundle of care exploratory laparotomy operating room bundle of care preventing surgical site infection surgery

在线全文

学校读者我要写书评

暂无评论

盆栽百合的生产

中国花卉园艺 2006年第4期 14-15页

作者： Tina m.smith 王丽勉

百合可以分为两个大类:东方百合系列和亚洲百合系列。亚洲百合系列的自然花期为春末和夏初,东方百合系列则为夏末。生产者只要有基本的生产知识,对品种的特性熟悉,再配合上较好的温室控制,就可以生产出标准的盆花来。

关键词：亚洲百合生产盆栽东方百合花型红色白色花色紫色玫瑰

ζ-Carotene Isomerase Suppresses Tillering in Rice through the Coordinated Biosynthesis of Strigolactone and Abscisic Acid

在线全文

学校读者我要写书评

暂无评论

molecular Plant 2020年第12期13卷 1784-1801页

作者： Xue Liu Qingliang Hu Jijun Yan Kai Sun Yan Liang meiru Jia Xiangbing meng Shuang Fang Yiqin Wang Yanhui Jing Guifu Liu Dianxing Wu Chengcai Chu Steven m.smith Jinfang Chu Yonghong Wang Jiayang Li Bing Wang State Key Laboratory of Plant Genomics and National Center for Plant Gene Research(Beijing)Institute of Genetics and Developmental BiologyInnovation Academy for Seed DesignChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Rice Biology Institute of Nuclear Agriculture SciencesZhejiang UniversityHangzhou 310029China School of Natural Sciences University of TasmaniaHobart 7001Australia State Key Laboratory of Plant Genomics and National Center for Plant Gene Research(Beijing)Institute of Genetics and Developmental BiologyThe CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesBeijing 100101China College of Life Sciences Shandong Agricultural UniversityTaian 271018China

Rice tillering is an important agronomic trait affecting grain ***,we identified a high-tillering mutant tillering20(t20),which could be restored to the wild type by treatment with the strigolactone(SL)analog rac-GR24.T20 encodes a chloroplast ζ-carotene isomerase(Z-ISO),which is involved in the biosynthesis of ca-rotenoids and their metabolites,SL and abscisic acid(ABA).The t20 mutant has reduced SL and ABA,raising the question of how SL and ABA biosynthesis is coordinated,and whether they have overlapping functions in *** discovered that rac-GR24 stimulated T20 expression and enhanced all-trans-p-carotene ***,rac-GR24 also stimulated expression of Oryza sativa 9-CIS-EPOXY-CAROTENOID DIOXYGENASE 1(OsNCED1)through induction of Oryza sativa HOmEOBOX12(0sHOX12),promoting ABA biosynthesis in shoot *** the other hand,ABA treatment significantly repressed SL biosynthesis and the ABA biosynthetic mutants displayed elevated SL *** treatment reduced the number of basal tillers in both t20 and wild-type ***,while ABA-deficient mu-tants aba1 and aba2 had the same number of basal tillers as wild type,they had more unproductive upper tillers at *** work demonstrates complex interactions in the biosynthesis of carotenoid,SLs and ABA,and reveals a role for ABA in the regulation of rice tillering.

关键词： rice(Oryza sativa L.) tillering ζ-carotene isomerase carotenoid strigolactones abscisic acid

Is the possible fine-structure constant drift also a test of a time-dependent Planck constant?

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

Science China(Physics,mechanics & Astronomy) 2011年第12期54卷 2191-2195页

作者： ZTAS A. m. smith m. L. Engineering Physics Hacettepe University Jannek Fuel Inc. Phoenix

The recent publication of spatial and distance variation of the fine-structure constant, α, derived from astronomical data of quasar emissions (QE) is exciting. The decreasing value of α over time, derived from data obtained from the Very Large Telescope (VLT) in Chile, encourages the search for other possible running constants. We surmise that emissions from distant supernovae, type Ia (SNe Ia), which are more blue than predictions are best explained by a decreasing Planck constant with increasing lookback time. We present some results from our theoretical work and comparison to the astronomical observations and suggest that both α and h might be running constants. more data are required to answer several questions about the origin of the "drifting" α and the possible time dependence of h. Astronomical tools such as SNe and QE may be the best means to secure the exacting data needed to confirm or deny these hypotheses.

关键词： alpha quasars distance measurement supernovae CmB

Hydrophobicity of Highly Ordered Nanorod Polycrystalline Nickel and Silver Surfaces

在线全文

学校读者我要写书评

暂无评论

Journal of minerals and materials Characterization and Engineering 2019年第5期7卷 279-293页

作者： Jan macko Natalia Podrojkova Radim Hrdy Andrej Orinak Renata Orinakova Jaromir Hubalek Jaroslav Vojtus Zuzana Kostecka Roger m.smith Department of Physical Chemistry University of P.J.Safarik in KosiceKosiceSlovakia Depatrment of microelectronics Brno University of TechnologyBrnoCzech Republic Central European Institute of Technology Brno University of TechnologyBrnoCzech Republic Department of Architectural Engineering Institute of Architectural EngineeringKosiceSlovakia University of Veterinary medicine and Pharmacy KosiceSlovakia Department of Chemistry Loughborough UniversityLoughboroughUK

Highly ordered nickel and silver nanorods arrays prepared by alumina template assisted electrodeposition were investigated to determine the effect of the array geometry on metal surface hydrophobicity and adhesion forces. The nanorod geometry, clustering and pinning were used to characterize surface hydrophobicity and its modulation. A contribution of metal crystallographic orientation to the surface energy was calculated. To characterize nanorod array surface properties and elucidate the source of the particle adhesion effects has been calculated. The dispersive components of surface tension?γSD?and surface polarizability ks, as surface features that markedly characterize hydrophobicity and adhesion, were calculated. The highest hydrophobicity was found for Ag nanorods with aspect ratio of 10 then Ni nanorods with aspect ratio 10. The same geometry of nanorods particles resulted in different surface hydrophobicity and it was ascribed to the orientation of Ag and Ni crystals formed on the top of nanorods. Due to high hydrophobicity nanorod array surfaces could be used as an antifouling surface in medicine to select areas on implant surface not to be colonized by cells and tissues.

关键词： Nanorods Silver Nickel Hydrophobicity Surface Energy Crystallinity

Data Selection Using Support Vector Regression

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

Advances in Atmospheric Sciences 2015年第3期32卷 277-286页

作者： michael B.RICHmAN Lance m.leslie Theodore B.TRAFALIS Hicham mANSOURI School of meteorology and Cooperative Institute for mesoscale meteorological Studies University of OklahomaNorman Oklahoma 73072 USA School of Industrial and Systems Engineering University of OklahomaNorman Oklahoma 73019 USA Power Costs Inc. 301 David L.Boren Blvd.Suite 2000 Norman Oklahoma 73072 USA

Geophysical data sets are growing at an ever-increasing rate,requiring computationally efficient data selection （thinning） methods to preserve essential ***,such as WindSat,provide large data sets for assessing the accuracy and computational efficiency of data selection techniques.A new data thinning technique,based on support vector regression （SVR）,is developed and *** manage large on-line satellite data streams,observations from WindSat are formed into subsets by Voronoi tessellation and then each is thinned by SVR （TSVR）.Three experiments are *** first confirms the viability of TSVR for a relatively small sample,comparing it to several commonly used data thinning methods （random selection,averaging and Barnes filtering）,producing a 10％ thinning rate （90％ data reduction）,low mean absolute errors （mAE） and large correlations with the original data.A second experiment,using a larger dataset,shows TSVR retrievals with mAE ＜ 1 m s-1 and correlations ≥ *** was an order of magnitude faster than the commonly used thinning methods.A third experiment applies a two-stage pipeline to TSVR,to accommodate online *** pipeline subsets reconstruct the wind field with the same accuracy as the second experiment,is an order of magnitude faster than the nonpipeline ***,pipeline TSVR is two orders of magnitude faster than commonly used thinning methods that ingest the entire data *** study demonstrates that TSVR pipeline thinning is an accurate and computationally efficient alternative to commonly used data selection techniques.

关键词： data selection data thinning machine learning support vector regression Voronoi tessellation pipeline methods

Fibroblast growth factor receptor 3 effects on proliferation and telomerase activity in sheep growth plate chondrocytes

在线全文

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2013年第1期4卷 41-48页

作者： Logan B smith Janelle m Belanger Anita m Oberbauer Department of Animal Science University of California

Background： Fibroblast growth factor receptor 3 （FGFR3） inhibits growth-plate chondrocyte proliferation and limits bone elongation. Gain-of-function FGFR3 mutations cause dwarfism, reduced telomerase activity and shorter telomeres in growth plate chondroyctes suggesting that FGFR3 reduces proliferative capacity, inhibits telomerase, and enhances senescence. Thyroid hormone （1-3） plays a role in cellular maturation of growth plate chondrocytes and a known target of T3 is FGFR3. The present study addressed whether reduced FGFR3 expression enhanced telomerase activity, mRNA expression of telomerase reverse transcriptase （TERT） and RNA component of telomerase （TR）, and chondrocyte proliferation, and whether the stimulation of FGFR3 by T3 evoked the opposite response. Results： Sheep growth-plate proliferative zone chondrocytes were cultured and transfected with siRNA to reduce FGFR3 expression; FGFR3 siRNA reduced chondrocyte FGFR3 mRNA and protein resulting in greater proliferation and increased TERT mRNA expression and telomerase activity （p 〈 0.0.5）. Chondrocytes treated with T3 significantly enhanced FGFR3 mRNA and protein expression and reduced telomerase activity （p 〈 0.05）; TERT and TR were not significantly reduced. The action of T3 at the growth plate may be partially mediated through the FGFR3 pathway. Conclusions： The results suggest that FGFR3 inhibits chondrocyte proliferation and reducing telomerase activity indicating an important role for telomerase in capacity during bone elongation. by down-regulating TERT expression sustaining chondrocyte proliferative

关键词： Chondrocytes Growth-plate Telomerase Fibroblast growth factor receptor 3 Thyroid hormone Sheep