Results 61 to 70 of about 23,545 (152)
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
Regulating Reality: Exploring Synthetic Media Through Multistakeholder AI Governance
ABSTRACT Artificial intelligence's integration into daily life has brought with it a reckoning on the role such technology plays in society and the varied stakeholders who should shape its governance. This is particularly relevant for AI‐generated, or synthetic, media, an emergent visual technology impacting perceptions of media as records of reality ...
Claire R. Leibowicz
wiley +1 more source
ABSTRACT Confrontational violence still puts catastrophic burdens on children, with 2024 being the highest recorded levels of displacement, malnutrition, injury, and deprivation in contemporary humanitarian history. Children's surgical care is still grossly underrepresented in health responses worldwide in the prevention of avoidable deaths and long ...
Gaurav Chanderprakash Mittal +4 more
wiley +1 more source
为了实现液体火箭发动机组件在地面力学环境试验中的响应与其实际工作状态下的响应特征一致,提升组件试验考核的有效性,从边界映射途径出发,讨论了组件力学环境响应一致的边界映射问题的理论求解,提出了通过设计优化进行组件试验边界映射的工程解决方法。基于二代非支配排序遗传算法(non‑dominated sorting genetic algorithms‑II,简称NSGA‑II)和有限元联合仿真,对某型发动机推力装置组件地面力学环境试验的边界约束结构进行优化设计,获得了满足响应特征要求的组件试验边界约束结构形式,
doaj +1 more source
Advances in Thermoelectric Cu2ZnSnS4: From Structure, Synthesis to Performance
ABSTRACT Thermoelectric technology has the capacity to directly convert waste heat into electricity and vice versa. For a long time, Cu2ZnSnS4 (CZTS) has been extensively researched in the domains of solar cells and photocatalysis due to its exceptional photovoltaic properties, but its wide bandgap prevents it from being favored in thermoelectrics ...
Xiaojun Li +3 more
wiley +1 more source
目的应用响应曲面分析法建立最佳的舒芬太尼复合氟比洛芬酯静脉术后镇痛模型,获得满意的镇痛效果,降低副作用的发生。方法选择ASAI-II级的肿瘤患者,年龄18-70岁,行胸腹部手术70例,随机分为对照组和实验组。对照组术后给予静脉镇痛泵舒芬太尼200μg+氟比洛芬酯150mg+生理盐水到250ml,实验组通过建立舒芬太尼与氟比洛芬酯相互作用响应曲面模型,获得理想的药物配置浓度,与常规配比方案进行效果和副作用发生率的比较。结果通过应用响应曲面分析法获得的舒芬太尼复合凯纷镇痛浓度方案 ...
刘文涛, 关雷
doaj
探究不同人为管理措施坡耕地地表微地形变化特征,阐明地表微地形变化对渗流响应,以期为紫色土坡耕地水土流失的有效防治与人为管理措施的合理布设提供科学依据。以平整坡面、穴播坡面和垄作坡面为研究对象,基于室内人工模拟渗流试验,开展5°和15°紫色土坡面微地形变化特征研究。结果表明:(1)渗流试验前后平整坡面、垄作坡面和穴播坡面微地形半方差函数在0~135°和180°~315°方向上呈中心对称分布,随地表坡度的增加分布范围逐渐缩小,且具有明显的方向性。渗流条件下,平整坡面和穴播坡面微地形各向异性的变化趋势较为一致,
杨斐雄 +3 more
doaj
ABSTRACT The regeneration of osteoporotic bone defects is severely hampered by compromised endogenous healing capacity, demanding advanced strategies that actively orchestrate pro‐osteogenic microenvironments. Here, we report an integrated, self‐powered osteo‐regenerative system that uniquely leverages a dual ultrasound‐responsive piezoelectric ...
Bing Tan +6 more
wiley +1 more source
ABSTRACT Composites of metal–organic frameworks (MOFs)/two‐dimensional transition metal carbides/nitrides (MXene) have been widely recognized as promising electrode materials for advanced electrochemical energy storage systems due to their synergistic structural advantages and tunable electrochemical properties.
Wenjun Zhu +5 more
wiley +1 more source
ABSTRACT The design and synthesis of highly efficient electrochemical sensors are pivotal to electrochemical conversion technologies. This study successfully synthesized a composite material comprising two‐dimensional (2D) conductive MXene and nickel‐based metal–organic framework (Ni‐MOF) by stirring at room temperature.
Hai‐Xia Wu +8 more
wiley +1 more source

