检索结果-南通市图书馆

Prospective case series on trabecular-iris angle status after an acute episode of phacomorphic angle closure

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

International Journal of Ophthalmology(English edition) 2013年第1期6卷 67-70页

作者： Jacky Lee Jimmy Lai doris yick Can Yuen Department of Ophthalmology University of Hong Kong Department of Ophthalmology Caritas Medical Centre

AIM:To investigate the trabecular-iris angle with ultrasound biomicroscopy (UBM) post cataract extraction after an acute attack of phacomorphic angle closure. ·METHODS:This prospective study involved 10 cases of phacomorphic angle closure that underwent cataract extraction and intraocular lens insertion after intraocular pressure (IOP) lowering. Apart from visual acuity and IOP, the trabecular-iris angle was measured by gonioscopy and UBM at 3 months post attack. ·RESULTS:In 10 consecutive cases of acute phaco-morphic angle closure from December 2009 to December 2010, gonioscopic findings showed peripheral anterior synechiae (PAS) ≤90° in 30% of phacomorphic patients and a mean Shaffer grading of (3.1±1.0). UBM showed a mean angle of (37.1°±4.5°) in the phacomorphic eye with the temporal quadrant being the most opened and (37.1°±8.0°) in the contralateral uninvolved eye. The mean time from consultation to cataract extraction was (1.4 ± 0.7) days and the mean total duration of phacomorphic angle closure was (3.6 ±2.8) days but there was no correlation to the degree of angle closure on UBM (Spearman correlation P =0.7). The presenting mean IOP was (50.5±7.4) mmHg and the mean IOP at 3 months was (10.5±3.4) mmHg but there were no correlations with the degree of angle closure (Spearman correlations P =0.9). CONCLUSION:Anopentrabecular-irisangleandnormal IOP can be achieved after an acute attack of pha-comorphic angle closure if cataract extraction is performed within 1 day-2 days after IOP control. Gonioscopic findings were in agreement with UBM,which provided a more specific and object angle measurement. The superior angle is relatively more narrowed compared to the other quadrants. All contralateral eyes in this series had open angles.

关键词： angle ultrasound biomicroscopy phacomorphic intraocular pressure

f4ESS-a framework for interdisciplinary data-driven earth system science

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Digital Earth 2023年第1期16卷 3973-3986页

作者： doris Dransch Daniel Eggert Mike Sips Remote sensing and Geoinformatics Helmholtz Center Potsdam–German Research Center for GeosciencePotsdamGermany Geography Department Humboldt-University at BerlinBerlinGermany

Earth system science is an interdisciplinary effort to understand the fundamentals and interactions of environmental *** research is challenging since it demands the integration of scientific schemes and practices from different research fields into a collaborative work *** paper introduces the framework f4ESS that supports this integration.f4ESS provides methods and technologies that facilitate the development of integrative work environments for Earth system science.f4ESS enables scientists a)to outline structured and summarized descriptions of scientific procedures to facilitate communication and synthesis,b)to combine a large variety of distributed data analysis software into seamless data analysis chains and workflows,c)to visually combine and interactively explore the manifold spatiotemporal data and results to support understanding and knowledge *** f4ESS methods and technologies are generic and can be applied in various scientific *** discuss f4EsS in the context of the interdisciplinary investigation of flood events.

关键词： Earth system science interdisciplinary research scientific workflows integration

A Critical Role of AMT2;1 in Root-To-Shoot Translocation of Ammonium in Arabidopsis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Molecular Plant 2017年第11期10卷 1449-1460页

作者： Ricardo f.H. Giehl Alberto M. Laginha fengying Duan doris Rentsch Lixing Yuan Nicolaus von wirén Department of Physiology and Cell Biology Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Corrensstrasse 3 06466 Gatersleben Germany Institute of Plant Sciences University of Bern Aitenbergrain 21 3013 Bern Switzerland Key Lab of Plant-Soil Interaction MOE College of Resources and Environmental Sciences China Agricultural University Beijing 100193 China

Ammonium uptake in plant roots is mediated by AMT/MEP/Rh-type ammonium transporters. Out of five AMTs being expressed in Arabidopsis roots, four AMT1-type transporters contribute to ammonium uptake, whereas no physiological function has so far been assigned to the only homolog belonging to the MEP subfamily, AMT2;1. Based on the observation that under ammonium supply, the transcript levels of AMT2;1 increased and its promoter activity shifted preferentially to the pericycle, we assessed the contribution of AMT2;1 to xylem loading. when exposed to ^15N-labeled ammonium, amt2;1 mutant lines translocated less tracer to the shoots and contained less ammonium in the xylem sap. Moreover, in an amtl;1 amtl;2 amtl ;3 amt2;1 quadruple mutant （qko）, co-expression of AMT2;1 with either AMT1;2 or AMT1;3 significantly enhanced ^15N translocation to shoots, indicating a cooperative action between AMT2;1 and AMT1 transporters. Under N deficiency, proAMT2;1-GfP lines showed enhanced promoter activity predominantly in cortical root cells, which coincided with elevated ammonium influx conferred by AMT2;1 at millimolar sub- strate concentrations. Our results indicate that in addition to contributing moderately to root uptake in the low-affinity range, AMT2;1 functions mainly in root-to-shoot translocation of ammonium, depending on its Cell-type-specific expression in response to the plant nutritional status and to local ammonium gradients.

关键词： nitrogen uptake nitrogen translocation ammonium assimilation xylem loading ammonia transport ammonium influx

Relative abundance of Phlebotominae sandflies with emphasis on vectors of kala-azar

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2010年第4期3卷 270-271页

作者： Naveen Samuel Singh doris Phillips-Singh Department of Zoology Lucknow Christian CollegeGolaganjLucknow-226018(U.P.) India

Objective:To identify potential vectors of kala-azar from Northern plains of Uttar Pradesh, ***:The collections were made using sticky paper traps,CDC light-traps,and aspirators from outdoors as well as *** female sandflies were dissected and identified. Results:During January 2009 to July 2009,528 phlebotomine specimens were collected including 329 males(62.3%) and 199 females(37.7%),approximately 238(45%) of them were captured from indoor and 290(55%) from outdoor resting *** species belonging to the genera Phlebotomus(8%) and Sergentomyia(92%) were ***:Public health measures such as case detection and treatment,the control of sandflies,the conjunction elimination of infected stray dogs and health education can be effective in controlling the disease.

关键词： Phlebotominae sandflies Kala-azar Vector

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

活性炭工艺去除水中典型药品的效能与机理

化工学报 2012年第4期63卷 1243-1248页

作者：乔铁军张锡辉 doris w.T.AU 清华大学深圳研究生院广东深圳518055 香港城市大学生物与化学系中国香港999077

药品和个人护理品(PPCPs)因其潜在的环境和健康风险受到了广泛关注。实验选取8种典型药品为对象,采用中试规模的活性炭工艺研究了其去除效果和影响因素。结果表明,活性炭工艺对安替比林、达舒平、舒必利、磺胺甲唑、泰妙菌素和氧苄胺嘧... 详细信息

药品和个人护理品(PPCPs)因其潜在的环境和健康风险受到了广泛关注。实验选取8种典型药品为对象,采用中试规模的活性炭工艺研究了其去除效果和影响因素。结果表明,活性炭工艺对安替比林、达舒平、舒必利、磺胺甲唑、泰妙菌素和氧苄胺嘧啶等的去除率为50%～90%,对林肯霉素和氨糖美辛的去除率均小于35%。典型药品的去除率受到滤速、有机物和pH等因素的影响,其中,氨糖美辛、林肯霉素和泰妙菌素等的去除率受滤速影响较大;磺胺甲唑的去除率受pH影响较大。有机物对典型药品去除率的影响既有促进作用,又有抑制作用。典型药品的物化性质对其去除行为有重要影响,这有利于从分子水平上认识活性炭工艺对典型药品的去除机理。

关键词：药品和个人护理品物化性质活性炭深度处理饮用水

亚致死剂量UV-C辐照抑制铜绿微囊藻生长的效果

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

清华大学学报（自然科学版） 2010年第9期50卷 1412-1415页

作者：陶益毛献忠张锡辉袁侃 doris w T Au 清华大学深圳研究生院环境工程与管理研究中心深圳518055 香港城市大学生物与化学系香港

铜绿微囊藻是中国典型的水华蓝藻。该文研究亚致死剂量短波紫外线（UV-C）辐照对其生长的抑制效果。采用准平行光束仪进行定量辐照处理,用共聚焦激光扫描显微镜进行藻细胞计数,用流式细胞术识别藻细胞膜完整性,三维荧光光谱分析藻蓝蛋... 详细信息

铜绿微囊藻是中国典型的水华蓝藻。该文研究亚致死剂量短波紫外线（UV-C）辐照对其生长的抑制效果。采用准平行光束仪进行定量辐照处理,用共聚焦激光扫描显微镜进行藻细胞计数,用流式细胞术识别藻细胞膜完整性,三维荧光光谱分析藻蓝蛋白及叶绿a的相对荧光水平。结果表明：对初始密度为106个/mL铜绿微囊藻,UV-C辐照能抑制藻细胞生长,亚致死剂量范围是50-100 mJ/cm^2,抑制效果可以持续7 d。

关键词：铜绿微囊藻亚致死剂量UV-C辐照生长抑制细胞膜完整性湖泊

Major bridge development in Hong Kong,China—past,present and future

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

frontiers of Structural and Civil Engineering 2011年第4期5卷 405-414页

作者： Michael CH HUI doris YAU S15/f Civil Engineering and Development Building101Princess Margaret RoadHo Man TinKowloonHong KongChina

The first"modern"type of vehicular bridge was built in Hong Kong China in the *** need for an efficient transportation system to cope with population growth and enable economic development has demanded the construction of more and more bridges since the middle of the 20th *** 2007,Hong Kong had a total of about 1300 vehicular *** of these bridges,including the Tsing Ma Bridge,Kap Shui Mun Bridge,Ting Kau Bridge,and the cable-stayed bridge on the Hong Kong-Shenzhen western Corridor,are considered to be major bridges supported by ***,the Stonecutters Bridge on Route No.8 is under construction and is expected to be completed in late *** the same time,the Hong Kong-Zhuhai-Macao Bridge will be in its detailed design stage *** efforts have been made by bridge builders to construct these giant structures,the upkeeping of these valuable assets at a high standard and ensuring their continuous functioning and performance during their intended lifespans will be another important task for bridge *** and structural health monitoring system(wASHMS)will play a key role in this respect.

关键词： Tsing Ma Bridge Kap Shui Mun Bridge Ting Kau Bridge Stonecutters Bridge Hong Kong-ZhuhaiMacao Bridge wind and structural health monitoring system(wASHMS)

High spectro-temporal compression on a nonlinear CMOS-chip

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Light(Science & Applications) 2021年第7期10卷 1347-1361页

作者： Ju won Choi Ezgi Sahin Byoung-Uk Sohn George f.R.Chen doris K.T.Ng Anuradha M.Agarwal Lionel C.Kimerling Dawn T.H.Tan Photonics Devices and System Group SUTD-MIT International Design CenterSingapore University of Technology and DesignSingapore 487372Singapore Institute of Microelectronics A*STAR(Agency for ScienceTechnology and Research)2 Fusionopolis Way#08-02Innovis TowerSingapore 138634Singapore Microphotonics Center Massachusetts Institute of Technology77 Massachusetts AvenueCambridgeMA 02139USA Materials Research Laboratory Massachusetts Institute of Technology77 Massachusetts AvenueCambridgeMA 02139USA Department of Materials Science and Engineering Massachusetts Institute of Technology77 Massachusetts AvenueCambridgeMA 02139USA

Optical pulses are fundamentally defined by their temporal and spectral *** ability to control pulse properties allows practitioners to efficiently leverage them for advanced metrology,high speed optical communications and attosecond ***,we report 11×temporal compression of 5.8 ps pulses to 0.55 ps using a low power of 13.3 *** result is accompanied by a significant increase in the pulse peak power by 9.4×.These results represent the strongest temporal compression demonstrated to date on a complementary metal–oxide–semiconductor(CMOS)*** addition,we report the first demonstration of on-chip spectral compression,3.0×spectral compression of 480 fs pulses,importantly while preserving the pulse *** strong compression achieved at low powers harnesses advanced on-chip device design,and the strong nonlinear properties of backend-CMOS compatible ultra-silicon-rich nitride,which possesses absence of two-photon absorption and 500×larger nonlinear parameter than in stoichiometric silicon nitride *** demonstrated work introduces an important new paradigm for spectro-temporal compression of optical pulses toward turn-key,on-chip integrated systems for all-optical pulse control.

关键词： pulse optical nonlinear

H2A.Z contributes to trithorax activity at the AGAMOUS locus

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Molecular Plant 2022年第2期15卷 207-210页

作者： Un-Sa Lee Tomasz Bieluszewski Jun Xiao Ayako Yamaguchi doris wagner University of Pennsylvania Department of Biology19108 PhiladelphiaPAUSAUniversity of PennsylvaniaDepartment of Biology19108 PhiladelphiaPAUSA Institute of Genetics and Developmental Biology Chinese Academy of SciencesBeijing100190China Centre of Excellence for Plant and Microbial Science(CEPAMS) The John Innes CentreNorwich Research ParkNorwichNR47UHUK

Dear Editor,In multicellular eukaryotes,Polycomb repression heritably si-lences gene expression programs not needed or detrimental for a given developmental stage or tissue(Schuettengruber et al.,2017).During cell fate reprogramming,Polycomb silencing can be overcome by the combined activity of multiple Trithorax group(TrxG)proteins(wu et al.,2012;Liang et al.,2015;Schuettengruber et al.,2017).TrxG proteins are genetically defined as suppressors of homeotic defects caused by loss of Polycomb function and have diverse enzymatic activities(Schuettengruber et al.,2017).we used a genetic enhancer screen to identify candidate TrxG proteins and uncovered TrxG activity for components of the SwR1 chromatin remodeling complex,which deposits the histone variant H2A.Z(Deal et al.,2007;March-Diaz et al.,2008).

关键词： H2A.Z suppressor