Results 11 to 20 of about 10,576 (166)
Abstract The accelerated pace of biological aging predicts mortality and morbidity later in life. The current study examines whether a change in supportive couple functioning buffers accelerated aging associated with stressful community environments among Black Americans who live in rural, Southern, disadvantaged neighborhoods.
Man‐Kit Lei, Steven R. H. Beach
wiley +1 more source
Abstract Rumination, or thinking repetitively about one's distress, is a risk factor for posttraumatic stress disorder (PTSD). Current theories suggest that rumination contributes to PTSD symptoms directly, by increasing negative reactions to trauma cues (i.e., symptom exacerbation), or represents a form of cognitive avoidance, if verbal ruminations ...
Blair E. Wisco +5 more
wiley +1 more source
Evident but context‐dependent mortality of fish passing hydroelectric turbines
Abstract Globally, policies aiming for conservation of species, free‐flowing rivers, and promotion of hydroelectricity as renewable energy and as a means to decarbonize energy systems generate trade‐offs between protecting freshwater fauna and development of hydropower. Hydroelectric turbines put fish at risk of severe injury during passage. Therefore,
Johannes Radinger +2 more
wiley +1 more source
This study is the first to evaluate Functional Family Therapy (FFT) in a non‐Western culture. The effectiveness of FFT was examined in relation to three proximal outcomes relevant to youth offender rehabilitation: (i) mental well‐being, (ii) family functioning, and (iii) probation completion.
Daniel Z. Q. Gan +4 more
wiley +1 more source
Energy efficiency optimization algorithm of heterogeneous networks based on hybrid energy supply and energy cooperation [PDF]
To reduce the base station energy consumption and co-channel interference in heterogeneous cellular networks, a joint optimization algorithm combined with energy harvesting and energy cooperation was proposed with the objective of energy efficiency ...
Chunling PENG +3 more
core +1 more source
未来战场上的作战资源分配是一个存在总资源预算约束的多阶段对抗问题,具有环境高复杂性、动态不确定性、博弈强对抗性。基于布洛托博弈模型,首先把多阶段对抗场景下的资源分配问题建模为双层在线布洛托博弈,然后将原资源分配问题转化为有向无环图上的在线最短路径问题,并借鉴拉格朗日博弈对资源分配问题进行分析求解。此外,提出LagrangeBwK-Exp3-G算法以实现多阶段对抗条件下资源分配问题的高概率遗憾最小化,进一步通过数学推导获得关于时间范围T的高概率遗憾界。最后 ...
陈少飞, 邹明我, 苏小龙, 罗俊仁, 冯俊侨
doaj +1 more source
Cooperative interference power allocation in physical layer security under imperfect time synchronization [PDF]
In physical layer security,considering imperfect time synchronization,a power allocation scheme was proposed to maximize the system secrecy capacity.By analyzing the residual interference power at the authorized receiver caused by imperfect time ...
Changqing SONG +4 more
core +1 more source
Resource optimization for UAV relay networks based on physical-layer network coding [PDF]
To solve the problem of low resource utilization of the traditional two-way communication network with unmanned aerial vehicle (UAV) as relays, a resource optimization algorithm based on physical-layer network coding was proposed.Considering the ...
Bo LI, Junyi YANG, Qinyu ZHANG
core +1 more source
在城市高可靠性供电方式下,城市重要用户专门配置的应急电源利用率低下,资源浪费严重。随着未来电网的发展,分布式电源在城市日趋普及,将其兼做应急电源是解决传统应急电源闲置问题、进一步发挥分布式电源作用的有益尝试。提出了一种计及分布式电源的城市重要用户应急电源优化配置方法,以城市分布式电源的类型与特点确定其应急工作方式,利用多人决策AHP方法量化用户重要性,然后基于区域电网结构,以等效重要负荷最大为最优目标,以有功功率平衡为约束,通过遗传算法求解来划分应急孤岛 ...
刘飞, 汤亮亮, 邓鹤鸣, 伍俊
doaj +1 more source
Joint power control for untrusted relay cooperation-based confidential communication [PDF]
The scenario that multiple cell-edge mobile stations (MS) all without direct-links to the base station (BS) but have confidential messages in the uplink in the presence of untrusted relay (UR) cooperation was considered.In order to implement the secure ...
Wei-heng JIANG +3 more
core +1 more source

