Results 21 to 30 of about 4,642 (117)
Abstract Wildlife reintroductions are socioecological processes entailing the intentional movement of organisms by people. In animal reintroductions, there is growing recognition of the importance of human dimensions and efforts to integrate these into reintroduction projects. To conceptually reframe reintroductions as processes of renewed coexistence (
Roger Edward Auster +3 more
wiley +1 more source
利用相同区域湖泊沉积物及土壤培养黑藻,分析不同层次底质中各形态磷含量和间隙水中磷浓度的变化,揭示在沉水植物作用下淹水土壤和沉积物中不同层次磷的迁移规律。结果表明,本试验条件下,土壤各层次均比营养水平相当的沉积物中磷的迁移性大,黑藻能促进上层底质中无机磷向上覆水中迁移,通过根系作用促进根尖分布层底质中有机磷的迁移转化;黑藻对沉积物下层(根尖分布层)磷迁移转化的影响小于土壤,对上层底质中磷向上覆水中迁移的影响大于土壤;黑藻通过吸收作用及改变根区环境条件,影响底质间隙水中各形态磷的浓度 ...
赵海超 +4 more
doaj +2 more sources
N-cadherin对视网膜色素上皮细胞增殖及迁移侵袭的影响
【目的】为了明确神经钙黏蛋白(N-cadherin)在糖尿病视网膜病变上皮-间质转化中的作用,探讨N-cadherin对视网膜色素上皮细胞增殖、迁移及侵袭力的影响及作用机制。【方法】分别采用Ad-N-cadherin(Ad-N-cad)、Ad-si N-cadherin(si N-cad)及Ad-GFP、Ad-si Control(si Con)对照腺病毒处理细胞以过表达或沉默N-cadherin,采取葡萄糖(25mmol/L)处理视网膜色素上皮细胞以模拟高糖状态,使用CCK8试剂检测细胞增殖情况 ...
李艳梅
doaj
目的探究HIST1H3B表达量变化对结直肠癌细胞功能的影响。方法使用RT-qPCR技术和Western blot分别检测HIST1H3B在SW1116细胞中的表达;利用Transwell实验检测HIST1H3B对细胞的迁移及侵袭能力的影响。结果通过RT-qPCR、Western Blot检测到SW1116过表达和沉默表达的细胞系构建成功。细胞功能实验表明HIST1H3B过表达促进细胞的迁移及侵袭功能,沉默HIST1H3B可抑制细胞迁移及侵袭功能 ...
刘佳琦 +4 more
doaj
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
以南方典型红壤区福建省长汀县水土保持科教园5种水土保持措施为研究对象,采集坡面产流产沙及稀土迁移数据,以期揭示南方红壤区水保措施的减水减沙效益及对稀土迁移的阻控效应。结果表明:(1)全坡面种草、封禁、低效马尾松施肥、乔灌草混交、人工补植马尾松5种水土保持措施的年均减流率和年均减沙率分别为65.41%,69.29%,63.42%,86.19%,72.59%和91.87%,84.21%,81.54%,94.13%,81.75%。(2)各降雨量下,5种水土保持措施径流和泥沙的稀土迁移强度分别比对照小区低85 ...
张青青 +3 more
doaj
鄂尔多斯盆地奥陶纪中央古隆起是盆地内的重要油气聚集区,其成因一直是大家关注的热点.利用丰富的钻井资料对古隆起中东部地区中奥陶统马五段地层的沉积特征进行详细的分析,编制出了马五段各层段的厚度等值线图,圈出了各时期的沉降中心位置,发现在马五8~马五5时期,沉降中心基本以向南迁移为主,伴随着一定程度的向西迁移;在到时期,沉降中心以向西的迁移为主,伴随微弱的向南迁移.这种迁移过程支持鄂尔多斯盆地西、南缘在奥陶纪时发育双前陆盆地,“L”型中央古隆起是在早-中奥陶世时受该双前陆盆地前缘隆起相互叠加的影响.
YUANSuhang(袁苏杭) +8 more
doaj +1 more source
Migration Behavior of DEHP and DEHA from PVC Wrap to Pork(PVC保鲜膜中DEHP和DEHA向猪肉中迁移规律研究) [PDF]
In order to investigate the migration of plasticizer from PVC wrap to pork, a method for determination of nine plasticizers in pork by gas chromatography coupled with solid-phase extraction was deve-loped.
JIAO Xun(焦逊) +3 more
doaj +1 more source
Electrolyte With Functionalized Boron Nitride Nanosheets for Dendrite‐Free Lithium Metal Anodes
ABSTRACT Lithium metal batteries (LMBs) are regarded as promising candidates for the next‐generation high‐energy‐density storage systems due to their unparalleled theoretical energy density and low redox potential. However, the commercialization of LMBs is tremendously plagued by the barbaric growth of lithium dendrite and the intricate decomposition ...
Ji Zhou +5 more
wiley +1 more source
在数据库集群系统中,进程迁移常用于实现系统的负载均衡、高效容错和减少通信开销等方面。文章提出的基于自适应通信平台(Adaptive Communication Environment,ACE)实现进程迁移技术的方法,在用户层实现内核级的进程迁移功能,解决了数据库集群系统进程迁移跨平台的问题,提高了集群系统的数据处理和系统容错能力。
肖建桥, 卢军
doaj

