Results 81 to 90 of about 31,792 (238)

THP抗体鉴别血尿来源 附视频

open access: yesZhongguo shiyan zhenduanxue, 1997
为鉴别血尿来源,提高对血尿出血部位的诊断率,本文用Tamm-HorsfalProtein(THP)抗体免疫染色法观察了148例血尿中红细胞表面THP含量,同时与红细胞形态学法进行了对比。以肾小球血尿(n=69)THP染色阳性率大于70%,非肾小球血尿(n=79)THP染色阳性率小于30%为标准,正确符合率为95.3%,形态学检查的正确符合率为89.9%;THP法检出阳性率高于形态学法(P<0.05)。因此认为,THP免疫染色法能较特异地鉴别血尿来源,是一种血尿定位诊断的较好方法。
杨述红, 侯巍, 刘晓梅, 张霞
doaj  

[Morphological study on the transverse branch of lateral femoral circumflex artery based on digital subtraction angiography]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2023
Huang YT   +9 more
europepmc   +1 more source

Climate stability drives multidimensional nestedness of amphibian assemblages in a Chinese sky island system

open access: yesFunctional Ecology, Volume 40, Issue 3, Page 636-654, March 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The nested subset pattern (nestedness) has been widely used to explain species distributions in island and fragmented systems. Mountain sky islands serve as critical natural laboratories for understanding the evolutionary consequences of geographic isolation and climate
Caiwen Zhang   +5 more
wiley   +1 more source

Immigration, Beneficiary Assumptions, and Welfare Support

open access: yesReview of Policy Research, Volume 43, Issue 2, March 2026.
ABSTRACT Previous research demonstrates that assumptions and perceptions about who benefits from welfare programs and the deservingness of those welfare beneficiaries play a considerable role in shaping individuals' welfare attitudes. However, a holistic understanding of how these assumptions and perceptions are formed remains limited. In this study, I
Hang Qi
wiley   +1 more source

Design and Implementation of License Plate Localization System Based on Adaboost [PDF]

open access: yes, 2016
摘要 论文论述了车牌定位系统设计与实现的方法和过程,车牌定位是车牌识别系统中车牌定位、车牌分割、车牌号码识别三部分的第一个部分,好坏直接关系到整个系统识别率的高低,并且对识别速度有很大影响。 本文在理论研究上主要包括特征提取、算法选择、算法改进三个方面。在充分研究和理解Haar特征的基础上,提出了“回字形特征”和“非对称线性特征”两种类Haar特征。设计过程中选取四种原有Haar特征及本文提出的两种类Haar特征的六种特征为特征模版,以及对窗口大小和移动步长的优化选取生成了5571个特征 ...
屠楚楠
core  

Is Market a Hero or Villain? A Narrative Policy Framework Analysis of China's Patient‐Centred Healthcare Policy

open access: yesReview of Policy Research, Volume 43, Issue 2, March 2026.
ABSTRACT This study applies the Narrative Policy Framework (NPF) within a non‐democratic context, exploring the role of policy narratives in the implementation of patient‐centred healthcare policy in China. Drawing on a dataset of academic journal articles that reference both “market” and “patient‐centredness,” the research reveals how local ...
Jingqing Yang
wiley   +1 more source

乳腺癌分子分型研究进展

open access: yesZhongguo shiyan zhenduanxue, 2011
长期以来,组织病理学诊断是肿瘤诊断的"金标准"和临床治疗的基础,但组织学类型、TNM分期都相同的肿瘤如采取相同的治疗方案,患者对治疗的反应和预后并不一致。事实上,恶性肿瘤(包括乳腺癌)是一类分子水平上高度异质性的疾病,组织学形态相同的肿瘤,其分子遗传学改变不尽一致,从而导致肿瘤治疗反应和预后的差别 ...
陈桂秋   +4 more
doaj  

贵州贞丰发现茅索角蟾

open access: yes野生动物学报, 2022
2021年8月19日,在贵州贞丰龙头大山州级自然保护区进行两栖动物(Amphibia)资源调查过程中,采集到2号两栖动物标本,经系统发育分析和形态学比较,鉴定为茅索角蟾(Xenophrys maosonensis),为贵州省两栖动物新纪录,对其形态特征和生境进行了描述,为该物种分类及谱系地理学研究提供了参考。
沈 拓   +4 more
doaj  

Studies of cerebral venous circulation and coagulation function in patients with aneurysmal subarachnoid hemorrhage [PDF]

open access: yes, 2016
目的:1.利用全脑血管造影技术(DSA)和磁敏感加权成像(SWI)观察动脉瘤性蛛网膜下腔出血(aSAH)患者脑静脉循环的变化,并探讨其对患者病情的判断价值。 2.利用血栓弹力图(TEG)研究aSAH患者凝血功能的变化,旨为评估患者凝血及纤溶系统的改变提供新的思路。 方法:1.收集南京军区福州总医院57例aSAH患者、48例未破裂动脉瘤患者及45例非动脉瘤患者(正常对照组),利用DSA观察并比较三组患者脑微循环时间(mCCT)及脑静脉循环时间(vCCT)及脑微血管及皮质静脉的显影特征。 2 ...
李兵兵
core  

慢速冷冻和玻璃化冷冻对人类卵巢组织中卵泡形态的影响

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2007
【目的】比较慢速冷冻、麦管玻璃化冷冻和尼龙网玻璃化冷冻对人类卵巢组织中卵泡形态的影响。【方法】16例人卵巢组织切成薄片随机分配到新鲜卵巢组(A组)、麦管玻璃化冷冻组(B组)、尼龙网玻璃化冷冻组(C组)和慢速冷冻组(D组)后行组织学和电镜检查。【结果】A、B、C、D组中形态正常的原始卵泡比例分别为72.5%±8.4%、65.6%±12.8%、66.1%±11.1%、48.4%±13.3%;形态正常的初级卵泡比例分别为62.0%±13.9%、58.1%±7.9%、59.0%±16.2%、37.0%±14.0%
彭艳   +6 more
doaj  

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