Results 41 to 50 of about 17,999 (157)
Zhongguo shiyan zhenduanxue, 2017 目前处于分娩期的女性和妇产科的医生们都把重心放在围生期女性盆底功能状态的研究上,尤其是怎么样才能快捷有效的对盆底功能障碍性疾病进行诊断[1]。盆底功能障碍性疾病主要包括压力性尿失禁、大便失禁、盆腔器官脱垂、性功能异常、便秘及慢性盆腔疼痛等。多种因素如肥胖、年龄、妊娠等都能导致女性盆底功能异常,其中妊娠和分娩造成的肛提肌组织破坏是最主要的因素[2]。
薛丹 +4 more
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Conservation Biology, Volume 40, Issue 2, April 2026.Abstract There exists a growing suite of technologies that support significant and exciting progress in biodiversity conservation and research. Citizen scientist participation is common in this research and often focuses on data collection and labeling.
Joycelyn Longdon +5 more
wiley +1 more source
The mechanism of Honokiol induced cancer cell apoptosis via AMPK/Nur77 signal pathway [PDF]
, 2016 AMPK是高度保守的细胞内能量感应器，它能通过抑制细胞增殖和生物合成过程响应细胞内能量应激。越来越多的研究表明，AMPK不仅是细胞能量平衡和代谢途径的主要调节因子，还与细胞凋亡和细胞自噬等过程有关。Nur77（也称为TR3/NGFI-B）是由立早基因NR4A1编码的孤儿核受体，是核受体超家族中的一员。Nur77能被激素、生长因子等诱导表达，参与细胞的生长、发育、增殖和凋亡等重要生理过程。 和厚朴酚是传统中药厚朴或凹叶厚朴中的主要活性成分之一。研究表明，和厚朴酚具有抗菌、抗炎、抗氧化、抗焦虑 ...
黄建刚
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Integrative Conservation, Volume 5, Issue 1, Page 59-73, March 2026.This research reveals the functional stability of mixed species foraging flocks (MSF) and their foraging height change with different taxonomic differences along the elevational gradient at Knuckles Montane Reserve, Sri Lanka. This offers new insights into how MSFs sustain with the elevational gradients supporting the altitudinal shifting species ...
Vimukthi. R. Gunasekeara +3 more
wiley +1 more source
Fabrication of Micro Direct Formic Acid Fuel Cell Based on MEMS Technology [PDF]
, 2015 微型直接甲酸燃料电池（MicroDirectFormicAcidFuelCell，μ-DFAFC）具有能量转化效率高、膜渗透率低、电催化氧化活性高、补给方便和环境友好等优点，同时其具备的实际能量密度高、室温工作性能优良、燃料储存携带便捷且安全无毒害等优势，使其逐步成为目前微型燃料电池研究和便携式电源领域的热门方向。基于上述优势，本论文采用MEMS（Micro-Electro-MechanicalSystem）技术设计并制备了一款封装性能优良的μ-DFAFC ...
王婷婷
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Integrative Conservation, Volume 5, Issue 1, Page 86-103, March 2026.Urbanization may alter bird foraging. Austral Parakeets (Enicognathus ferrugineus) in Patagonia rely on introduced plants in urban areas, especially in winter, despite preferring natives in the wild. This seasonal reliance on introduced species highlights urbanization trade‐offs and underscores the need to manage green areas with native plants to ...
Rocío Bahía +2 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2018 胰岛细胞瘤（islet20cell20tumor,ICT）是属于胺前体摄取和脱羧（amine20precursor20uptake20and20decarboxylation,APUD）细胞系统,可以合成和分泌多种激素,临床症状表现多样的罕见胰腺肿瘤,其发病率为0.43/10000[1]。根据ICT是否具有内分泌功能分为功能性（胰岛素瘤、胃泌素瘤、胰高血糖素瘤、生长抑素瘤、舒血管肠肽瘤）和无功能性两大类 ...
高娟娟, 王清
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Zhongguo shiyan zhenduanxue, 2020 鹿茸系鹿科动物梅花鹿或马鹿尚未骨化的幼角,含有蛋白质、氨基酸、糖类、无机元素、生物胺、核苷及多种无机物质[1]。其中蛋白质含量丰富,是鹿茸的主要功能成分之一[2],我国对鹿茸的研究主要集中在对其粗提物,如乙醇萃取物[3]等的功能性评价。然而,研究表明鹿茸中蛋白质经酶解可产生生物活性肽,具有抗氧化[4]、抗骨质疏松[5,6]、促进细胞增殖[7]等多种生物活性。体外实验中,通常采用骨肉瘤来源的成骨样细胞作为药物促进成骨细胞形成功能的实验模型[8],本研究采用人成骨肉瘤细胞的OS-732成骨样细胞作为细胞模型,
刘颖男 +4 more
doaj
Experimental Studies On Carbon source utilization of Aerobic Anoxygenic Phototrophic Bacteria（AAPB） and metabolic diversity of bacterial community in the East China Sea [PDF]
, 2009 好氧不产氧光合细菌（AAPB）是一类可以利用光能的异养细菌，生态调查研究表明这一功能类群在海洋中广泛分布且在一些海区占有重要份额，独特的光能利用能力使其在海洋碳循环过程中充当着重要角色。而且，作为从厌氧光合细菌到异养细菌进化过程中的过渡类群，这个类群的研究对于我们认识光合细菌的进化历史具有非常重要的意义。 为深入研究AAPB的生理适应性机制，我们把AAPB菌株和同属的异养细菌进行了对比。首先从形态上对比，电镜超薄切片的实验结果表明，尽管AAPB可以利用光能 ...
李强
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Integrative Conservation, Volume 5, Issue 1, Page 74-85, March 2026.This study investigates distribution patterns of Galliforms in the Indian Himalayas, focusing on factors influencing their occurrence, regions of high diversity and endemism, and their overlap with protected areas. Our study highlights the need for assemblage‐level conservation strategies in high Himalaya which primarily relies on snow leopard‐focused ...
Manvi Sharma +5 more
wiley +1 more source