Results 91 to 100 of about 1,274,438 (219)
Zhongguo shiyan zhenduanxue, 2006 目的探讨高分子量角蛋白和TPO蛋白在甲状腺乳头状癌诊断与鉴别诊断中的作用。方法用免疫组化EnVision法测定50例甲状腺乳头状癌及110例甲状腺良性病变（结节性甲状腺肿伴乳头状增生50例、癌旁组织50例和滤泡性腺瘤10例）高分子量角蛋白和TPO表达情况。结果50例甲状腺乳头状癌高分子量角蛋白阳性46例,阴性4例;110例甲状腺良性病变高分子量角蛋白均阴性。50例甲状腺乳头状癌TPO阴性48例,阳性2例;110例甲状腺良性病变TPO均阳性。高分子量角蛋白和TPO在甲状腺乳头状癌诊断中的评价指标 ...
莫祥兰 +5 more
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野生动物学报, 2021 肠道菌群对于动物消化及健康有着至关重要的作用，但在性别差异上的研究仍然有限。本研究通过高通量测序技术对贺兰山阿拉善马鹿（Cervus elaphus alashanicus）的20个粪便样本进行多样性分析，雌雄各半，并讨论性别因素对肠道菌群的影响。结果表明，阿拉善马鹿雌雄肠道菌群的多样性及结构均存在差异，且雌性肠道菌群的多样性更高。菌群构成的门水平上，雄性肠道菌群的优势菌门为厚壁菌门（Firmicutes 4947%）和疣微菌门（Verrucomicrobia 1421 ...
于威 李俊乐 滕丽微 刘振生
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Differentiating sex and gender in health research to achieve gender equity. [PDF]
Bull World Health Organ, 2023 Kaufman MR, Eschliman EL, Karver TS.
europepmc +1 more source
Running With Scissors? Integrating GPT Models Into Public Policy Research
Policy Studies Journal, EarlyView.ABSTRACT The integration of large language models (LLMs) into public policy research presents both exciting opportunities and methodological challenges. This research note explores how OpenAI's GPT can be used to semi‐automate the annotation of legislative testimony within the Advocacy Coalition Framework, focusing on emotion‐belief dyads.
Giulia Mariani, Allegra H. Fullerton
wiley +1 more source
Sex discrepancy in establishing mouse visceral obesity model induced by high-fat diet. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue Ban, 2023 Peng C +5 more
europepmc +1 more source
, 1998 解剖出生１５～４５ｄ的稚鳖，所有个体的性腺呈细线状，肉眼分辨不出雌雄。组织学研究发现，雌雄个体的性别都已明显分化。雄性精巢的外壁由两层膜构成，其内部由许多隔膜分隔成许多精细管，精细管里充满原始的精母细胞；雌性卵巢有卵巢腔和输卵管，由结缔组织、毛细血管和生殖上皮形成卵巢膜和基质，并把卵巢分隔成一个个小室，原始的卵泡就在这些小室中生长 ...
叶玉珍,吴清江,黄文郁
core
Journal of Critical Infrastructure Policy, Volume 8, Issue 1, Spring/Summer 2027.ABSTRACT Epistemic orphaning, responsibility drift, loss of institutional memory, and non‐stationarity are not new problems in infrastructure governance—they have accompanied long‐life infrastructure throughout its history. What artificial intelligence changes is not the existence of these problems but their scale, opacity, and the structural ...
Priscilla P. Nelson
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 1996 为探讨磁共振成像（ＭＲＩ）和Ｂ超对卵巢肿瘤良恶性鉴别、定性及恶性肿瘤分期的诊断价值。采用双盲法对４２例（４９个病灶）均经手术、病理证实的卵巢肿瘤的ＭＲＩ及Ｂ超征象进行分析。计算各自的敏感性、特异性、准确性、并进行比较。表明ＭＲＩ和Ｂ超对卵巢肿瘤良恶性鉴别的敏感性、特异性、准确性分别为８８．１％／６１．９０％、９５．２％／７１．４３％、９１．６７％／６６．６７％，两者间存在显著差异（Ｐ＜０．０５），定性准确性分别为８０．９６％和５２．３８％（Ｐ＜０．０５），对恶性肿瘤的分期ＭＲＩ准确性达７７．８０ ...
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Zhongguo shiyan zhenduanxue, 2010 目的分析孤立性甲状腺结节的CT表现,评价CT扫描在孤立性甲状腺结节良恶性鉴别诊断中的价值。方法与病理结果对照分析75例孤立性甲状腺结节的CT表现特点。结果在结节边缘不清、微小钙化等方面,良恶性结节有显著性差异 ...
蒋元文, 王薇, 周宏伟, 张云亭
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