Results 41 to 50 of about 212,295 (161)
Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift +8 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2010 目的研究CpGODN在体外刺激人PBMC的增殖情况。方法分别以肿瘤抗原（Ag）、白细胞介素-2（IL-2）和CpGODN单独或联合刺激正常人和肿瘤患者PBMC,并对其增殖活性进行测定。结果以CpGODN刺激人PBMC组的细胞增殖活性明显高于对照组 ...
李金龙, 耿力, 韩刚, 贾明库
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Climbing to survive: Potential elevational shifts in warming risk for the Moltrecht's treefrog
Ecological Solutions and Evidence, Volume 7, Issue 3, July–September 2026.Low‐elevation populations of Zhangixalus moltrechti had higher thermal limits but lower warming tolerance than high‐elevation populations. Climate change is expected to expand high‐risk areas upslope, highlighting the need for emissions reduction and targeted habitat management.
Jh‐Yu You +2 more
wiley +1 more source
野生动物学报, 1995 麻雀的消化道在繁殖期总重量、鲜重及干重均高于繁殖前期，分别增加了６１．２１％、３９．４２％和３２．１２％。其中小肠的长度、重量、鲜重及干重也明显增加了４．９２％、１３２．９５％、１７３．７４％和１２８．３３％，而胃内含物重量的增加更为显著。表明了鸟类在繁殖期间通过改变消化道的形态以增加对能量的需求，是鸟类保证繁殖成功的生存对策之一．
柳劲松 +4 more
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Ultrasound in Obstetrics &Gynecology, Volume 68, Issue 1, Page 59-67, July 2026.ABSTRACT Objective Infertility affects up to 20% of couples in high‐income countries, which has led to an increased use of assisted reproductive technology (ART). While previous studies have linked ART to a higher risk of major congenital heart defects (CHD), less is known about the associated risk of minor CHD.
F. Kyhl‐Svart +16 more
wiley +1 more source
, 1994 本文论述我国水库渔业资源的增殖及其生产效能。为了提高淡水鱼类的鱼产量，必须十分重视水库渔业资源的增殖。对于不同类型的水库采取不同的增殖途径，小型水库宜通过施肥以提高初级生产力的方法；中型水库或中型以上水库应采用水面分室利用的生产对策。且同时实施保护利用天然鱼类资源，结合人工放流、移植驯化优质短食链养殖新种类 ...
乐佩琦
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TLR-2信号途径对新生儿免疫系统在淋巴细胞增殖和调节性T细胞扩增方面的影响
Zhongguo shiyan zhenduanxue, 2006 目的探讨TLR-2（Toll like receptor-2）信号途径对新生儿免疫系统在淋巴细胞增殖和调节性T细胞（Treg）扩增方面的影响及其与成人免疫系统的差别。方法应用TLR-2的配体-肽聚糖（PPG）和有丝分裂原-植物凝血素（PHA）刺激胎儿脐带血单核淋巴细胞（CBMC）和成人外周血单核淋巴细胞（PBMC）,然后采用3H胸腺嘧啶掺入法测淋巴细胞增殖情况及流式细胞技术检测活化T细胞,Treg细胞扩增情况。结果PPG和PHA刺激后,CBMC淋巴细胞总体明显增殖（P0.05）。PPG和PHA刺激后 ...
刘晶, 赵洪艳
doaj
Shuitu Baochi Xuebao, 2020 为了探索腐殖酸对土壤水盐运移特征及入渗参数的影响，进行了5种施量（0，1，3，5，7 g/kg）的一维垂直入渗试验。结果表明，入渗时间相同，累积入渗量和湿润锋均随腐殖酸施量的增加而减小；相同入渗深度随腐殖酸施量的增加所需的入渗时间、累积入渗量、剖面平均含水量均不断增加。入渗完成时相较于CK，施量为7 g/kg时累积入渗量、含水量分别增加8.0%，10.0%；施加腐殖酸可促进土壤剖面盐分向土壤深层运移并有效降低土壤pH，相较于CK施量为7 g/kg时0—20 cm土层平均脱盐率增加10.2 ...
李晓菊 +4 more
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Integrative Conservation, Volume 5, Issue 2, Page 192-204, June 2026.We developed an effective ex‐situ conservation approach for an endangered orchid species, Dendrobium sinominutiflorum. A compatible fungal strain Tulasnella sp. was obtained by using in‐situ seed baiting technique. The Symbiotic germination with Tulasnella sp. significantly promotes seed germination and seedling growth.
Han‐Xiao Huang +6 more
wiley +1 more source
, 1998 研究了IBDV在原代鸡胚成纤维细胞（PCEF）最优增殖条件。结果为1:100的接毒量，接种细胞密度为2.7 * 10~5 cells/ml，培养液的血清浓度为2%，加入一定量的Pluronic F-68和Antiform C，初始pH 6.8，37 ℃培养。二 从实验和理论上确定了接毒后的PCEF细胞代谢与IBDV病毒增殖的关系。三 建立了用Vero细胞检测IBDV病毒滴度的条件。四 研究了利用SCEF增殖IBDV的可能性。结果表明，可用SCEF代替PCEF进行IBDV的增殖培养。五 ...
李有根
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