Results 21 to 30 of about 282,855 (149)
A Three-generation Perspective Analysis of the Emotional Value of Children of Adolescents, Mothers and Grandmothers [PDF]
, 2009 目的:从青少年、青少年的母亲和青少年的外祖母三代不同视角探查影响生育情感价值的因素。方法:对209组配对青少年、母亲、外祖母进行问卷调查,采用了多元回归分析等研究方法。结果:依赖自我因素对三代人生育情感价值都有显著的预测效应 ...
郑钢, 刘锋, 赖建维
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Dizhen xuebao, 2019 预测效果的科学评价是预测学科必须要解决的问题，对地震预测效果的评价一般分为两种，一种是对单次预测成败的评判，另一种是对方法或手段多次预测效果的统计评分。本文提出了针对单次有震预测是否准确的定量评价方法，即地震预测准确性A值评分法。针对我国地震预测现状，本文约定了准确性评分由预测与实际地震的对应情况（简称“对应度” ）和时、空、强预测窗口的精确程度（简称“精确度” ）综合决定，同时，还给出了对应度的计算方法和精确度的评价标准。通过对四川省地震局2013年2月上报的短期预测意见进行试算 ...
Wei Yan +6 more
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Public Administration, EarlyView.ABSTRACT As the public sector increasingly adopts AI‐powered automated decision systems (ADS), understanding how citizens experience and value ADS use in public decision‐making is both normatively and practically important. Therefore, we examine and compare the effects of seven attributes of public values on citizens' support for ADS adoption in two ...
Guimin Zheng +4 more
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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
Intangible drivers of tolerance shape human–elephant coexistence in Southwest China
People and Nature, Volume 8, Issue 8, Page 2763-2780, August 2026.Abstract Southwest China is home to a small but rapidly expanding population of Asian elephants (Elephas maximus), whose growth has intensified conflicts with people living in shared landscapes. These conflicts result in substantial economic losses and occasional human casualties. This coexistence paradox—where conservation success leads to significant
Xiaoyu Yu +4 more
wiley +1 more source
, 2001 企业经营追求价值最大化 ,价值评估对企业改进管理、提升价值有重要意义。较通行的两种评估模型是 :现金流量折现模型和经济利润模型 ,各有比较优势。企业价值评估必须通过对企业历史绩效进行分析 ,预测绩效 ,估计资金成本 ,进行连续价值预测 ...
沈维涛
core
Zhejiang Daxue xuebao. Lixue ban, 2022 房价预测、共享单车出租数量预测、空气污染情况预测等常涉及矛盾方程组求解，对其数值求解方法研究具有重要的理论意义与应用价值。当矛盾方程组规模过大时，用传统的最小二乘法求解，不仅计算量大，而且由于误差积累使最终结果的准确性不高。鉴于此，采用机器学习中的最小二乘支持向量机（least squares support vector machine，LS-SVM）算法求解大规模矛盾方程组，并分别针对线性、非线性、单变量、多变量矛盾方程组进行了数值求解。数值结果表明，数据类型和数据量的变化对结果的影响不大 ...
ZHENGSupei(郑素佩) +3 more
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Functional Ecology, Volume 40, Issue 8, Page 2617-2627, August 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Root activity creates unique microbial hotspots in the rhizosphere by influencing the metabolic activities of surrounding soil microorganisms, profoundly regulating the dynamics of soil organic carbon (SOC). However, how root economic strategies affect the formation and
Qiyu Tan +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Developing advanced electrocatalysts for urea synthesis is pivotal to alleviating environmental burdens as well as advancing sustainability in the industrial and agricultural sectors, yet untargeted catalyst screening still suffers from the notorious drawbacks of being time‐consuming, labor‐intensive, and inefficient.
Xinyuan Yang +8 more
wiley +1 more source
Zhongguo tingli yuyan kangfu kexue zazhi, 2022 目的 探讨Chirp声听性稳态反应(ASSR)测试联合有意义听觉整合量表(ITMAIS)评分对感音神经性听力损失(SNHL)婴幼儿助听器(HA)干预后早期语前听能发育(early prelingual auditory development,EPLAD)情况的预测价值。方法 选取2017年5月～2020年1月我院SNHL患儿130例(260耳)作为研究对象,对比干预前后纯音听阈(PTA)、Chirp-ASSR测试反应阈、ITMAIS评分及不同EPLAD患儿Chirp-ASSR测试反应阈 ...
刘莹 +4 more
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