Results 21 to 30 of about 1,203,921 (106)
, 2005 利用自由回忆, 线索回忆和再认三种提取方式, 以儿童任务难度预见 ( EOL)的判断等级与学习时间分配之间的 G相关值作为指标,考察了小学儿童学习时间分配决策水平的发展过程。小学 2、 4 、 6年级儿童和成人大学生 (作为对照 )参与本研究, 每个年龄组各 24人。主要研究结果表明: ( 1)总体而言, 小学各年级儿童, 其学习时间分配的决策都受对任务难度预见等级的制约,对 EOL判断等级越高的项目, 分配的学习时间越长,说明小学儿童具有一定程度的学习时间分配的决策能力; ( 2)在自由回忆条件下 ...
刘希平, 方格
core +2 more sources
Protected areas on international borders show uneven conservation outcomes
Conservation Biology, EarlyView.Abstract Border protected areas (BPAs) are national protected areas that are immediately adjacent to a country's border or span two or more countries; they are characterized by distinctive opportunities and pressures. They play a critical role in protecting carbon‐rich ecosystems, conserving endangered biodiversity, reducing cross‐border environmental ...
Rachakonda Sreekar +10 more
wiley +1 more source
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Wide‐bandgap perovskite solar cells (WBG PSCs) have attracted significant attention as the top cell in tandem perovskite solar cells. However, the complexity of the composition leads to challenges such as defect formation and phase separation during the crystallization process, which impose significant constraints on the power conversion ...
Suzhen Liu +9 more
wiley +1 more source
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT A thermomechanical strategy based on rolling‐annealing cyclic (RAC) was developed to regulate defect architecture and precipitation behavior in a (FeCoCrNi)94Al3Ti3 high‐entropy alloy. Intermediate annealing during rolling enables progressive grain refinement and introduces a high density of twins, stacking faults, and dislocations, forming a ...
Jiale Man +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT The separation of light olefins is a crucial process in the petrochemical industry, and developing advanced adsorbent materials is very significant. Aluminum (Al) cluster‐based heterometallic frameworks possess great application prospects but have rarely been investigated for separation applications.
Song‐Yan Sui +4 more
wiley +1 more source
World Food Policy, Volume 12, Issue 2, November 2026.ABSTRACT Household food expenditure continues to be a key factor in ensuring the realization of the Human Right to Adequate Food. Particularly in Brazil, access to food can be limited by economic constraints in vulnerable families, especially among farming families, who have been more vulnerable to food insecurity in recent years in the country.
Lucas de Almeida Moura +3 more
wiley +1 more source
World Food Policy, Volume 12, Issue 2, November 2026.ABSTRACT Globally, there is collective agreement on the need to advance equity within food systems to promote health equity, food security, and social justice through structural transformation. Food systems are shaped by power asymmetries across scales and actors, which influence the realization of the right to food and constrain the agency of ...
Joan Kaburia, Susan J. Elliott
wiley +1 more source
World Water Policy, Volume 12, Issue 4, November 2026.ABSTRACT Biochemical oxygen demand (BOD) remains a core indicator of organic pollution in freshwater monitoring, but its role in water policy and practice is changing as water‐quality assessment moves toward predictive, integrative, and decision‐support approaches.
Isadora Favero Roque Cenci +5 more
wiley +1 more source
Beyond Evidence: How Framing Shapes Public Health Policies During Health Crises
Policy Studies Journal, Volume 54, Issue 4, November 2026.ABSTRACT Does the level of evidence that accompanies policy action depend on how a problem is framed, and on who frames it? This article examines these questions in the context of health crises. Bridging sociological and equivalence framing theories, it treats frames as preexisting interpretive schemes shared within communities of actors, whose ...
Antoine Claude Lemor, Eric Montpetit
wiley +1 more source
四川大学学报. 自然科学版, 2010 针对空中交通拥挤日益严重的现象,提出一种基于累积优先级时隙分配算法的地面等待程序模型.该算法在计算航班优先级时综合考虑了航班的延误时间、延误损失费用和飞行距离三种因素,通过引入权重来调配三者的重要程度.时隙分配时,采用累积优先级较大者优先的方式.通过计算机进行仿真,仿真实验表明,本算法能得到有效正确的时隙分配方案,且与先来先服务算法、整数规划算法比较,航班总延误时间和总延误费用有较大的减少.
杨奕, 施海, 陈新岗
doaj