Results 21 to 30 of about 1,262,625 (155)
Uncovering correlates of decline and critical refuges for a threatened terrestrial mammal
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Globally, the geographic ranges of numerous species are contracting. Identifying spatiotemporal patterns of threat impact can illuminate why species decline in some parts of their range but persist in others. We developed a correlative approach to identify species’ response thresholds and locate ecological refuge areas associated with ...
Natalya M. Maitz +5 more
wiley +1 more source
The Photogrammetric Record, Volume 41, Issue 195, July‐September 2026.Tri‐stereoscopic PeruSat‐1 imagery enables the simultaneous generation of 0.70 m‐resolution topography and spatially distributed Manning roughness maps, achieving 0.434 m vertical accuracy. Integrated into HEC‐RAS, these products provide consistent, high‐resolution inputs that improve hydraulic modelling and flood risk assessment in data‐scarce river ...
Jorge L. Miranda‐Pita +3 more
wiley +1 more source
World Water Policy, Volume 12, Issue 1, February 2026.ABSTRACT Urban expansion significantly impacts flood risk, particularly in rapidly growing areas where impervious surfaces exacerbate surface runoff. This study examines spatial patterns of urban growth and their effects on flood exposure in Mecklenburg County, North Carolina, from 2011 to 2021.
Pegah Madadi, Azad Sadeghi
wiley +1 more source
Journal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.ABSTRACT The National Quality Infrastructure (NQI) in a given country provides the essential framework for quality assurance integrating standardization, metrology, accreditation, and conformity assessment to create the technical backbone for industry and trade. Hence, building a resilient NQI is fundamental to securing medicine quality, enabling local
Addisu Afrassa Tegegne +3 more
wiley +1 more source
Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 6, Page 747-753, December 2025.ABSTRACT Objective Ultrasound‐based fetal growth assessment is an essential part of clinical decision‐making in modern obstetric care. This study aimed to evaluate the impact of maternal and fetal characteristics on the accuracy and precision of sonographic fetal weight estimation.
M. Granfors +4 more
wiley +1 more source
四川大学学报. 自然科学版, 2009 利用EGOPS软件仿真研究了多普勒偏差、多普勒频移、时钟稳定性/单差分、接收机噪声和局部多路径等GRAS误差对GNSS无线电掩星反演大气折射率廓线精度的影响.选择了一个上升掩星事件和一个下降掩星事件进行模拟分析,结果表明:误差最大值大部分出现在平流层顶附近,其中多普勒偏差引起的折射率相对误差最大值接近1%,多普勒频移引起的折射率相对误差最大值小于0.2%,时钟稳定性/单差分引起的折射率相对误差最大值接近0.8%,现实接收机噪声引起的折射率相对误差最大值超过了3 ...
饶若愚, 王也英, 杨楠
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六维床在头、胸、腹部肿瘤常规直线加速器放射治疗中的摆位误差回顾性分析
Fushe yanjiu yu fushe gongyi xuebao回顾性分析基于加速器六维床摆位的肿瘤患者的CBCT（Cone-Beam CT，CBCT）图像，比较患者的摆位误差数据，分析肿瘤患者六维床放射治疗中分次内摆位误差的数据，研究六维床对不同位置肿瘤产生的摆位效果差异。选取2020年3月至2023年9月于本中心接受放疗的肿瘤患者85例，分成脑瘤、肺癌、直肠癌和乳腺癌。统计4组患者在左右、头脚、腹背6个自由度（X、Y、Z和Rx、Ry、Rz）的首次和分次内摆位误差。采用双样本异方差t检验对比分析不同瘤种在各个方向上的分次内摆位误差 ...
万 宝 +8 more
doaj +1 more source
Administrative Burdens and Inequities in COBRA Take‐Up
World Medical &Health Policy, Volume 17, Issue 4, Page 658-668, December 2025.ABSTRACT To what extent does COBRA's lack of program visibility and complexity induce inequities in access to this form of health insurance? Though COBRA has long been an important tool for helping workers to avoid “job lock,” precious little scholarship has been devoted to understanding its reach.
Miranda Yaver
wiley +1 more source
RETRACTED: The Growing Tide of Antiscience Sentiment: A Global Concern
World Medical &Health Policy, Volume 17, Issue 3, Page 529-537, September 2025.ABSTRACT The growing tide of antiscience sentiment represents a critical global challenge, with particularly visible manifestations in the United States. This viewpoint examines how the rejection of scientific consensus threatens academic institutions, public health, and technological progress worldwide.
Thorsten Rudroff
wiley +1 more source
Dianci bileiqi, 1977 文中提出交流电桥对地分布阻抗影响测量误差的分析,和降低QS1型电桥测量误差的措施,尤其对测量小电容试品thδ出现负值（及低值）问题的分析,可提供目前高压测试中某些线索,以减少对试品绝缘的误判断。
张国明
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