Results 31 to 40 of about 4,515 (163)
We collated detections of the sun bear from new and previously published camera trap studies across its range. We then analysed these detections at two different spatial scales to assess the habitat associations and diel activity of this species. We found that the sun bear is tolerant to moderate habitat disturbances. ABSTRACT Degraded tropical forests,
Alexander Hendry +5 more
wiley +1 more source
目的 探讨谷氨酸 (Glutamicacid ,Glu)的神经性兴奋毒损伤作用机制。方法 在体外快速剥离新生大鼠 (0 1天 )双侧海马 ,制成海马神经细胞悬液 ,用Fura 2 /AM负载 ,建立了Fura 2 /AM检测海马神经细胞胞内游离钙离子浓度 ([Ca2 + ]i)的方法 ,并检测Glu兴奋毒对海马神经细胞 [Ca2 + ]i的影响。结果 Fura 2单细胞检测表明 ,静息状态下海马神经细胞 [Ca2 + ]i=2 5 2 .6± 36 .1(nmol/L) ,Glu可使海马神经细胞 ...
咸云淑, 熊文, 程刚
doaj
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
目的 探究短暂性全面性遗忘症(transient global amnesia,TGA)伴海马损伤患者的临床、血管危险因素及神经心理因素特征。 方法 回顾性纳入2015年1月—2024年1月海军军医大学第一附属医院收治的TGA患者,统计TGA伴海马损伤的部位及发病至完成头颅MRI的时间。根据是否伴有海马损伤将TGA患者分为TGA伴海马损伤组和TGA不伴海马损伤组,比较两组患者之间血管危险因素、小血管标志物、大血管狭窄程度、神经心理量表评估结果的差异。 结果 共纳入72例患者,平均年龄(63.7±11.
王为森1,杜冰滢1,李丙翰1,张馨元2,彭雯佳2,毕晓莹1 (WANG Weisen1, DU Bingying1, LI Binghan1, ZHANG Xinyuan2, PENG Wenjia2, BI Xiaoying1 )
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A MRI study of white matter changes in mesial temporal lobe epilepsy patients [PDF]
目的 运用基于体素的形态学测量(voxel-basedmorphometry,VBM)及基于纤维束骨架的空间统计方法(tract-basedspatialstatistics,TBSS)对内侧颞叶癫痫(mesialtemporallobeepilepsy,MTLE)患者全脑白质体积和白质纤维束弥散张量成像(diffusiontensorimaging,DTI)参数进行分析,并探讨MTLE患者脑白质结构改变与认知水平的关系。 材料和方法 选取24例右利手MTLE患者,其中左侧MTLE12例 ...
席继辉
core
Abstract Henry George advocated for capturing land value increases for public ends. The active approach of public authorities organizing and financing land development can help capture higher land value increases, as Hartman and Spit indicate. However, this approach hardly happens in developing countries, where the coalition of private developers and ...
Nannan Xu
wiley +1 more source
目的探讨丰富环境干预对短暂性全脑缺血大鼠海马形态学的影响。方法将Wistar大鼠分组建立短暂性全脑缺血模型,进行丰富环境干预,进行大鼠海马形态学分析。结果 HE染色显示,与IS组相比,IE组海马CA1区组织的病理损伤明显减轻。锥体神经元排列较规则,肿胀、固缩及脱失神经元数目较少。Nissl染色显示,IS组海马细胞层数减少,神经元细胞间隙变大,排列稀疏,细胞形态异常,尼氏体大量脱失,染色浅谈且出现较多空白区;IE组海马区仅见少量神经元缺失及胶质增生,但细胞形态基本正常,细胞排列较为整齐,尼氏体较清晰 ...
蔺勇, 郎云峰, 张扬, 程永杰
doaj
Multi-modal fMRI study on brain structure and function in different factors induced rat chronic obstructive pulmonary disease [PDF]
慢性阻塞性肺病(chronicobstructivepulmonarydisease,COPD)脑结构和功能的异常在近些年受到了越来越多的研究关注。先前的神经影像学研究已经发现COPD伴随着白质完整性的损害和灰质的丢失,以及功能连接网络的异常。但是吸烟和非吸烟(如慢性肺部炎症)诱导的COPD病人脑部形态学和功能的异同,以及吸烟和感染因素的综合诱导是否加重了脑损害尚不清楚。致病因素和COPD病人脑部异常的特征性对应关系仍待进一步的探究 ...
陈骥
core
US Foreign Policy and the Gulf States: Changing Dynamics in a Multipolar World
ABSTRACT This article focuses on US foreign policy toward the Gulf from Obama's Pivot to Asia to the initial period of the second Trump administration. It situates the role of the US within the broader context of the global energy transition and the Gulf states as geopolitical actors in a multipolar world order.
Steven Wright
wiley +1 more source
[目的]通过观察快速衰老小鼠(SAM)在衰老过程中海马中nNOS的分布和表达变化,探讨NO/nNOS在中枢神经系统衰老中的作用。[方法]采用雄性快速衰老亚系8小鼠(SAMP8)及抗快速衰老亚系1小鼠(SAMR1)为研究对象,其中SAMP8为实验组,SAMR1为对照组,每组动物再分为青年组(2月龄)和老年组(10月龄)两组,每个年龄组随机分配6只动物。用免疫组织化学法标记SAM海马中nNOS神经元,观察海马CA1,CA2和CA3区nNOS神经元的形态和分布,并计数nNOS神经元的数量;用RT ...
张立红 +4 more
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