Results 11 to 20 of about 2,437 (163)
[Dynamic Effects of High-Altitude Exposure on Sleep and Mood States and the Underlying Neural Mechanisms]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue Ban目的 分析平原健康人群在高海拔暴露前后的睡眠、情绪状态及脑功能变化，并探讨高海拔暴露前后局部脑功能改变与睡眠和情绪变化的相关性。 方法 以45例短期暴露于高海拔地区的平原健康被试为研究对象，采用匹兹堡睡眠质量指数量表（PSQI）、Zung氏抑郁自评量表（SDS）、患者健康问卷-9（PHQ-9）、Zung氏焦虑自评量表（SAS）和广泛性焦虑障碍量表（GAD-7），分别在高海拔暴露前、暴露后、返回平原1个月和返回平原3个月评估被试的睡眠质量及抑郁、焦虑水平。同时，在高海拔暴露前后采集静息态脑功能磁共振数据 ...
He W +12 more
europepmc +2 more sources
[Predictive Performance of Routine Blood Test Parameters for the Severity of Brain Damage in Patients With Acute Cerebral Hemorrhage in High-Altitude Regions]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue Ban目的 探讨高海拔地区急性脑出血（ACH）患者血常规中各项参数的变化对脑损伤程度的预测价值。 方法 采用回顾性分析，选取西藏某医院确诊的249例ACH住院患者，收集其一般资料及血常规等数据。按格拉斯哥昏迷量表（GCS）评分分为轻度脑损伤组（GCS≥13分）与中重度组（GCS≤12分），比较两组一般资料及实验室检查结果；通过二元logistic回归分析血常规指标与脑损伤程度的关系，筛选关键指标；并采用受试者工作特征曲线（ROC）分析关键指标联合对ACH患者脑损伤程度的预测能力。 结果 ...
Ma J +6 more
europepmc +2 more sources
[Preliminary Study of Dilated Cardiomyopathy at a High Altitude Based on Cardiac Magnetic Resonance Feature Tracking]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue Ban目的 探讨心脏磁共振特征追踪（cardiovascular magnetic resonance feature tracking, CMR-FT）技术在高海拔地区扩张型心肌病（dilated cardiomyopathy, DCM）患者心肌应变中的初步应用。 方法 回顾性搜集高海拔DCM患者（patients with DCM at high altitude, DCM-H）、平原DCM患者（patients with DCM at plain, DCM-P）、高海拔健康志愿者（healthy ...
Wang Z +8 more
europepmc +2 more sources
生态环境与保护西藏作为国家的重要生态安全屏障,需要高度重视乐生态环境保护的执法工作,坚决制止和惩处破坏生态环境行为。基于此,本文分析了西藏高海拔地区生态环境执法工作发展制约因素,并提出了相应的对策与建议。
Guo-Qing Wu +3 more
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高海拔复杂地形下 10kV 箱式变压器装配式基础施工技术深化 研究
建筑技术研究高海拔及山地区域是我国配电网建设的重要场景,10kV箱式变压器作为关键设备,其基础施工质量直接影响供电稳定性。然而,这类区域特殊的低温、低氧、复杂地质地形条件,使传统装配式基础施工面临效率低、质量难控等问题,制约工程推进。因此,深入分析施工难点,创新优化施工技术与质量控制措施,对保障高海拔地区配电网建设质量与效率具有重要现实意义。
Xian-Bing Li, Chao Tang, Guang-Hua Xu
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农业科学高海拔地区因其独特的气候条件(如昼夜温差大、紫外线强、病虫害基数低等),成为马铃薯优质种薯生产的理想区域。然而,该区域也面临着低温冷害、土壤贫瘠、栽培技术落后等问题,制约着脱毒种薯的产量与质量。本文从脱毒种薯选择、种薯处理、地块选择与整地、科学施肥、田间管理、病虫害绿色防控及适时收获等方面,系统阐述了高海拔地区马铃薯脱毒种薯栽培的关键技术,并结合当地生态特点提出产量提升策略,旨在为高海拔地区马铃薯产业的高效可持续发展提供技术参考。
Si Wu, Wen-Ying Yu
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Plant invasion in mountain ecosystems reduces soil micro‐food web complexity at higher elevations
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Anthropogenic activities have accelerated plant invasions in mountain ecosystems, impacting the structure and functions of native plant communities. Changes in above‐ground vegetation can drive shifts in below‐ground biota, yet the effects of plant invasions on soil ...
Runjie Jiao +8 more
wiley +1 more source
Integrative Conservation, Volume 5, Issue 3, Page 281-292, September 2026.We comprehensively evaluated the seed plant diversity of Jiangxi province to address the regional biodiversity conservation of Asian subtropical evergreen broad‐leaved forests (EBLFs). Higher species diversity of seed plants was observed in eastern, southern, and western Jiangxi, with elevation and precipitation as mainly environmental factors.
Minqin Duan +8 more
wiley +1 more source
Phenology drives asymmetric responses of ecosystem productivity stability to warming and cooling
Functional Ecology, Volume 40, Issue 9, Page 2959-2971, September 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecosystem productivity stability is a key indicator of ecosystem functioning under climate change, but the role of cooling periods in increasingly variable climates remains poorly resolved.
Yao Wei +11 more
wiley +1 more source
农业科学筛选高海拔地区适配青稞品种,本研究围绕青稞耐寒性与产量稳定性,构建综合鉴定及评价指标体系,分析不同品种特性差异及环境影响机制,建立“耐寒性-产量稳定性”二维协同评价模型。藏青2000、喜马拉雅22、喜马拉雅23在高海拔高寒区域耐寒性与产量稳定性表现突出,明确高海拔环境中低温、昼夜温差等因子对青稞的影响机制,划分不同优质品种推广适配区域,为高海拔地区青稞优质高产种植提供理论支撑与实践指导。
De Ji
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