检索结果-南通市图书馆

Histopathological,histochemical and biochemical postmortem changes in induced fatal hypothermia in rats

Forensic Sciences Research 2022年第2期7卷 211-227页

作者： mahrous Abdelbasset Ibrahim sally Salem mohammed Hany Goda Tammam Rehab Ibrahim Abdel-Karim medhat mohammed Farag Forensic medicine&Clinical Toxicology College of MedicineJouf UniversitySakakahSaudi Arabia Forensic medicine&Clinical Toxicology Department Faculty of MedicineSuez Canal UniversityIsmailiaEgypt Histology and Cell Biology Department Faculty of MedicineSuez Canal UniversityIsmailiaEgypt Forensic medicine and Clinical Toxicology Department Faculty of MedicineAl-Azhar UniversityCairoEgypt medical biochemistry Department College of MedicineShaqra UniversityShaqraaSaudi Arabia medical Biochemistry&molecular Biology Department Faculty of MedicineBenha UniversityBenhaEgypt

Reaching a postmortem diagnosis of hypothermia is challenging in forensic ***,this study was conducted to detect the histopathological,histochemical and biochemical changes that occur in adult albino rats following exposure to induced fatal ***-four adult albino rats were divided into the negative control,moderate hypothermia,severe hypothermia and hypoxia *** in the control group were euthanized when those in the moderate hypothermic group *** samples were collected via heart puncture,and the cerebrum,heart,suprarenal gland,kidney,liver and skeletal muscle were removed to investigate the biochemical,histochemical and histopathological *** assessment depicted significant changes in lipid peroxidation,represented by increased malondialdehyde levels in the studied organs of the rats in hypothermic and hypoxia *** examination of the rats’organs revealed degeneration and necrosis in the hypothermia and hypoxia *** taken from the severe hypothermic rats revealed a loss of normal cardiac tissue architecture,necrotic changes in the pyramidal cells in the cerebral cortex,and massive necrosis,mainly in the tubules of the renal cortex and *** findings suggest that histological changes might be used as biochemical markers for postmortem diagnosing of fatal hypothermia,particularly in severe hypothermic conditions.

关键词： Forensic sciences forensic medicine legal medicine autopsy forensic pathology histochemical hypothermia

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

基于土壤LFUHF频段介电特性的FDR测量频率研究

引用

农业机械学报 2013年第7期44卷 67-72页

作者：许景辉马孝义 sally D Logsdon Robert Horton 西北农林科技大学水利与建筑工程学院陕西杨凌712100 美国农业部农业研究局国家农业与环境实验室爱荷华州立大学农学系埃姆斯爱荷华州ia50011

土壤介电特性是影响FDR传感器测量土壤含水量精度和适应性的重要物理参数。为了确定28 mm长、10 mm间距的7探针FDR传感器理想频率,通过矢量网络分析仪对4种不同土壤的LF-UHF频段(1 mHz～3 GHz)散射参数进行了测量,通过Logsdon和Laird模... 详细信息

土壤介电特性是影响FDR传感器测量土壤含水量精度和适应性的重要物理参数。为了确定28 mm长、10 mm间距的7探针FDR传感器理想频率,通过矢量网络分析仪对4种不同土壤的LF-UHF频段(1 mHz～3 GHz)散射参数进行了测量,通过Logsdon和Laird模型变换,使用matlab进行了4种土壤表观介电常数的计算和绘制。通过土壤介电频谱分析,研究了土壤极化机理,分析了土壤介电特性与频率的关系,确定了FDR传感器的工作频段为44～398 mHz,考虑到温度对极化的影响,其最佳工作频段为62～110 mHz,其中75 mHz是其工作的最佳频率。此频率下土壤介电值仅对土壤含水量敏感,是消除温度等因素对FDR传感器影响的理想频率。

关键词：土壤含水量介电特性 FDR 测量频率

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

FDR探头结构对土壤介电谱测量的影响分析

引用

农业机械学报 2014年第1期45卷 102-107页

作者：许景辉马孝义 sally D Logsdon Robert Horton 西北农林科技大学机械与电子工程学院西北农林科技大学水利与建筑工程学院美国农业部农业研究局国家农业与环境实验室爱荷华州立大学农学系

为了研究FDR探头结构中探针间距和探针长度对土壤介电谱测量的影响,通过矢量网络分析仪分别对2种土壤的4个不同体积含水率进行了介电谱测量,通过28 mm长度下10 mm、14 mm探针间距探头和10 mm间距下28 mm、45 mm长度探头所测介电谱对比发... 详细信息

为了研究FDR探头结构中探针间距和探针长度对土壤介电谱测量的影响,通过矢量网络分析仪分别对2种土壤的4个不同体积含水率进行了介电谱测量,通过28 mm长度下10 mm、14 mm探针间距探头和10 mm间距下28 mm、45 mm长度探头所测介电谱对比发现,在31.2 mHz以上频段探针间距对土壤介电谱测量影响很小,而探针长度在不同频段对土壤介电实部或虚部均有不同影响。研究表明,探针间距不是土壤介电谱测量的影响因素,根据测量需要可对其进行一定范围的调整;探针长度影响土壤介电谱弛豫频率值,探针越短其弛豫频率越大,探针长度是影响土壤介电谱测量的关键因素之一。FDR探头的探针应适当缩短以拓展介电谱平滑段的频率范围,这有利于FDR传感器测量精度和环境适应性的提高。

关键词：土壤频域介电探头结构介电谱

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

Eelgrass and macroalgae Loss in an Oregon Estuary: Consequences for Ocean Acidification and Hypoxia

引用

Ocean-Land-Atmosphere Research 2023年第1期2卷 267-284页

作者： Caitlin L.magel sally D.Hacker Francis Chan Alicia R.Helms Department of Integrative Biology Oregon State UniversityCorvallisOR 97331USA South Slough National Estuarine Research Reserve CharlestonOR 97420USA

Estuarine macrophytes are proposed to influence ocean acidification and hypoxia(OAH)via the uptake(release)of inorganic carbon(oxygen)during *** extent to which macrophytes mitigate OAH in estuaries depends on the interaction between variable environmental conditions and macrophyte production over space and *** explore these complexities in detail,we considered the potential causes and consequences of intertidal eelgrass and macroalgae declines in a *** Northwest *** compiled and analyzed a record of eelgrass(Zostera marina)and ulvoid macroalgae along with a broad suite of environmental conditions over 15 years(2004 to 2019)at 3 sites along an estuarine gradient in South Slough,*** analysis showed that declining macrophyte biomass coincided with increasing temperature(water and air),watershed disturbance,and possibly *** with macrophyte loss,diel dissolved oxygen(DO)and pH variability were reduced,indicating an influence of macrophytes on water quality at an ecosystem *** loss was correlated with declining gross production and respiration,which altered the diel dynamics of pH,DO,and partial pressure of carbon dioxide at some *** certain conditions,there was an association between eelgrass biomass and changes in DO and pH of more than 2 mg/l and 0.3 units,*** found that daytime amelioration of low DO and pH was possible at certain locations when macrophyte biomass(especially eelgrass)was ***,our analyses suggested that the efficacy of macrophyte mitigation of OAH depends on macrophyte abundance and the volume and residence time of overlying water.

关键词： Estuary Northwest estuary

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

A child's world : infancy through adolescence / Diane E. Papalia, sally Wendkos Olds, Ruth Duskin Feldman. Updated 9th ed.

引用

2004年

作者： Diane E. Papalia sally Wendkos Olds Ruth Duskin Feldman.

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

Yield of tuberculosis among household contacts of tuberculosis patients in Accra,Ghana

引用

Infectious Diseases of Poverty 2018年第1期7卷 155-162页

作者： sally-Ann Ohene Frank Bonsu Nii Nortey Hanson-Nortey Adelaide Sackey Sam.el Danso Felix Afutu Paul Klatser mirjam Bakker World Health Organization Country Office 29 Volta Street AirportAirport Residential AreaP.O.Box MB 142AccraGhana National Tuberculosis Control Program AccraGhana Department of Global Health Academic Medical CentreAmsterdam Institute of Global Health and DevelopmentAmsterdamThe Netherlands KIT Health Royal Tropical Institute(KIT)AmsterdamThe Netherlands

Background:The End TB Strategy calls for systematic screening of selected high-risk groups including contacts of tuberculosis(TB)cases to facilitate early TB case *** investigation is not usually routinely practiced in low TB burden countries,such as Ghana,with consequent paucity of data on the yield of TB case detection from such *** study’s objective was to document the outcomes and feasibility of implementing contact investigation activities under programmatic conditions in ***:Retrospective analyses were conducted of abstracted data from the National TB Program,following a contact investigation intervention for TB cases diagnosed in 10 facilities in Accra from June 2010 to December *** proportions and yield from number of contacts needed to screen(NNS)and number needed to test(NNT)to detect a TB case were ***:Overall,out of the 8519 listed contacts of 3267 index cases,8166(96%)were screened and 614(7.5%)were identified as presumptive *** of these,438(71%)underwent sputum smear microscopy/evaluation and 53 TB cases were *** these,56.6%were males,and 49%had sputum smear-positive TB,38%had sputum smear-negative TB,and 7%had extra-pulmonary *** NNS and NNT to detect a TB case of all forms were 154 and 8,*** proportion of TB cases with contacts listed and proportion of contacts screened annually were 88-96%and 83-100%,*** proportion of presumptive TB cases tested and proportion of TB cases diagnosed among contacts tested that were 100%and 36%,respectively,in 2010 dropped to 40%and 14%,respectively,by ***:The study demonstrates that contact identification and prioritization components of a contact investigation were feasible,but overall yield of TB cases may have been lower due to the declining rate of clinical evaluation of presumptive TB contacts over *** barriers to accessing appropriate diagnostic tests may enhance yield from contact inves

关键词： Ghana Tuberculosis Tuberculosis contact investigation Screening

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

Automatic microplot Localization Using UAV Images and a Hierarchical Image-Based Optimization method

引用

Plant Phenomics 2021年第1期3卷 99-114页

作者： Sara mardanisamani Tewodros WAyalew minhajul Arifin Badhon Nazifa Azam Khan Gazi Hasnat Hema Duddu Steve Shirtliffe sally Vail Ian Stavness mark Eramian Department of Computer Science University of SaskatchewanSaskatoonSaskatchewanCanada Department of Plant Sciences University of SaskatchewanSaskatoonSaskatchewanCanada Agriculture and Agri-Food Canada SaskatoonSaskatchewanCanada

To develop new crop varieties and monitor plant growth,health,and traits,automated analysis of aerial crop images is an attractive alternative to time-consuming manual *** perform per-microplot phenotypic analysis,localizing and detecting individual microplots in an orthomosaic image of a field are major *** algorithm uses an automatic initialization of the known field layout over the orthomosaic images in roughly the right *** the orthomosaic images are stitched from a large number of smaller images,there can be distortion causing microplot rows not to be entirely straight and the automatic initialization to not correctly position every *** overcome this,we have developed a three-level hierarchical optimization ***,the initial bounding box position is optimized using an objective function that maximizes the level of vegetation inside the ***,columns of microplots are repositioned,constrained by their expected ***,the position of microplots is adjusted individually using an objective function that simultaneously maximizes the area of the microplot overlapping vegetation,minimizes spacing variance between microplots,and maximizes each microplot’s alignment relative to other microplots in the same row and *** orthomosaics used in this study were obtained from multiple dates of canola and wheat breeding *** algorithm was able to detect 99.7%of microplots for canola and 99%for *** automatically segmented microplots were compared to ground truth segmentations,resulting in an average DSC of 91.2%and 89.6%across all microplots and orthomosaics in the canola and wheat datasets.

关键词： breeding spacing entirely

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

Gastric mucosa-associated lymphoid tissue lymphomas and Helicobacter pylori infection:A Colombian perspective

引用

World Journal of Gastroenterology 2012年第7期18卷 685-691页

作者： sally Yepes maria mercedes Torres Carlos Saavedra Rafael Andrade Institute of Genetics Universidad Nacional de Colombia14490 Bogotá DCColombia Department of Pathology Fundación Santa Fe de Bogotá220246 Bogotá DCColombia Human Genetics Laboratory Universidad de los Andes4976 Bogotá DCColombia Faculty of medicine Universidad Nacional de Colombia14490 Bogotá DCColombia

AIm： To assess the significance of chromosome translo- cation t（11;18）（q21;q21）, B-cell lymphoma 10 （BCL-10） protein and He/icobacter py/ori （H. py/on） infection in gastric mucosa-associated lymphoid tissue ... 详细信息

关键词： mucosa-associated lymphoid tissue lympho-ma Helicobacter pylori Treatment t(11 18)(q21 q21 ) B-cell lymphoma 10

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

Efficacy and safety of tenofovir in chronic hepatitis B: Australian real world experience

引用

World Journal of Hepatology 2017年第1期9卷 48-56页

作者： Grace C Lovett Tin Nguyen David m Iser Jacinta A Holmes Robert Chen Barbara Demediuk Gideon Shaw sally J Bell Paul V Desmond Alexander J Thompson Department of Gastroenterology St Vincent’s Hospital Melbourne Faculty of medicine University of Melbourne

AImTo evaluate the long-term treatment outcomes of tenofovir therapy in patients in a real world Australian tertiary care setting. mETHODSWe performed a retrospective analysis of treatment outcomes among treatment-naïve and treatment-experienced patients receiving a minimum 3 mo tenofovir therapy through St Vincent’s Hospital melbourne, Australia. We included patients receiving tenofovir [tenofovir disoproxil fumarate (TDF)] monotherapy, as well as patients treated with TDF in combination with a second antiviral agent. Patients were excluded if they demonstrated human immune-deficiency virus/hepatitis C virus/hepatitis delta virus coinfection or were less than 18 years of age. We considered virological and biochemical response, as well as safety outcomes. Virological response was determined by measurement of hepatitis B virus (HBV) DNA using sensitive assays; biochemical response was determined via serum liver function tests; histological response was determined from liver biopsy and fibroscan; safety analysis focused on glomerular renal function and bone mineral density. The primary efficacy endpoint was complete virological suppression over time, defined by HBV DNA RESULTSNinety-two patients were identified who fulfilled the enrolment criteria. median follow-up was 26 mo (range 3-114). mean age was 46 (24-78) years, 64 (70%) were male and 77 (84%) were of Asian origin. 55 (60%) patients were treatment-naïve and 62 patients (67%) were HBeAg-negative. Complete virological suppression was achieved by 45/65 (71%) patients at 12 mo, 37/46 (80%) at 24 mo and 25/28 (89%) at 36 mo. Partial virological response (HBV DNA 20-2000 IU/mL) was achieved by 89/92 (96.7%) of patients. multivariate analysis showed a significant relationship between virological suppression at end of follow-up and baseline HBV DNA level (OR = 0.897, 95%CI: 0.833-0.967, P = 0.0046) and HBeAg positive status (OR = 0.373, 95%CI: 0.183-0.762, P = 0.0069). There was no difference in respon

关键词： Tenofovir Hepatitis B virus Australia Real-life Virological suppression Chronic hepatitis B

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

Nanoscale control of grain boundary potential barrier, dopant density and filled trap state density for higher efficiency perovskite solar cells

引用

Infomat 2020年第2期2卷 409-423页

作者： Behzad Bahrami sally mabrouk Nirmal Adhikari Hytham.elbohy Ashim Gurung Khan m.Reza Rajesh Pathak Ashraful H.Chowdhury Gopalan Saianand Wenjin Yue Jiantao Zai Xuefeng Qian mao Liang Qiquan Qiao Department of electrical Engineering and Computer Science Center for Advanced Photovoltaics and Sustainable EnergySouth Dakota State UniversityBrookingsSouth Dakota Physics Department Damietta UniversityNew Damietta CityEgypt Global Innovative Center for Advanced Nanomaterials Faculty of EngineeringThe University of NewcastleCallaghanNew South WalesAustralia College of Biochemical Engineering Anhui Polytechnic UniversityWuhuChina Shanghai electrochemical Energy Devices Research Center School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghaiChina Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion Department of Applied ChemistryTianjin University of TechnologyTianjinChina

In this work,grain boundary(GB)potential barrier(ΔφGB),dopant density(Pnet),and filled trap state density(PGB,trap)were manipulated at the nanoscale by exposing the fabricated perovskite films to various relative humidity(RH)*** mapping of surface potential in the perovskite film revealed higher positive potential at GBs than inside the *** averageΔφGB,Pnet,and PGB,trap in the perovskite films decreased from 0%RH to 25%RH exposure,but increased when the RH increased to 35%RH and 45%*** clearly indicated that perovskite solar cells fabricated at 25%RH led to the lowest average GB potential,smallest dopant density,and least filled trap states *** is consistent with the highest photovoltaic efficiency of 18.16%at 25%RH among the different relative humidities from 0%to 45%RH.

关键词： dopant density filled trap state density grain boundary potential barrier perovskite solar cells relative humidity

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：