Results 71 to 80 of about 762,283 (161)

From Indicator to Prediction: Five Decades of Biochemical Oxygen Demand Research in Tropical Freshwaters

open access: yesWorld 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

一种快速定量评价药物核酸相互作用的方法

open access: yes, 2009
一种快速定量评价药物核酸相互作用的方法,其特征在于:使用专用的阵列微流控芯片对药物核酸相互作用进行定量评价。相对于现有的技术,本发明具有直接、快速、操作简单和样品用量少的特点,对作用于核酸靶药物的高通量筛选有广泛的应用 ...
林炳承, 沈 铮, 秦建华, 戴忠鹏
core  

Predictive evolutionary genomics: principles, validation, and practice

open access: yesNew Phytologist, Volume 252, Issue 1, Page 36-48, October 2026.
Summary Climate change and habitat loss are driving rapid evolutionary responses in populations world‐wide, which creates an urgent need for evolutionary forecasting in conservation and agriculture. Such forecasting can be categorized into three time scales: trait‐based models that use multivariate quantitative genetic equations to project correlated ...
Daniel Ortiz‐Barrientos   +5 more
wiley   +1 more source

种猪性能综合评定指数的制定

open access: yes四川大学学报. 自然科学版, 2000
作者在前人研究的基础上 ,利用最小二乘分析原理 ,制定了目标性状日增重(ADG)、背膘厚 (BF)、饲料效率 (FCR)三性状的综合评定指数I =10 0 +0 .0 4× (ADG -ADG) - 4 .88× (BF -BF) - 2 5.94× (FCR -FCR) ,可作为种猪中心测定评定种猪时参考 .
何志平, 吕学斌, 应三成
doaj  

Neutral interactions among non‐native plants are common

open access: yesNew Phytologist, Volume 252, Issue 1, Page 292-309, October 2026.
Global distribution of studies and overall effect of co‐invasion for all metrics of non‐native plant performance combined. Summary Globalization has accelerated the establishment of non‐native plant species, increasing the prevalence of multispecies co‐invasions; yet interactions among co‐invaders remain poorly understood.
Feng He   +7 more
wiley   +1 more source

应用多质—多评价者程序对评定误差的分析

open access: yes, 1998
本研究通过多质-多评价者程序对两种常见的评定误差—光环效应和自我中心效应进行了分析。为了获得多质-多评价者矩阵,本研究选择了足球运动员作为被评价者。通过对41名球迷的访谈,应用关键事件技术对足球队的各个位置(后卫,前卫,前锋,守门员)进行了职务分析,并获得各位置的绩效特质。由十名大学生被试观看足球比赛录像并对运动员在多项绩效特质上进行评定,从而获得多质-多评价者矩阵。 研究表明,通过分析异质-同评价者矩阵,可以直观的显示评定者的光环效应。通过分析同质-异评价者矩阵发现 ...
张福松
core   +1 more source

Digital Futures Between Participatory Digital Democracy and Participatory Digital Fascism

open access: yesPolicy &Internet, Volume 18, Issue 3, September 2026.
ABSTRACT This paper explores one of the defining political questions of the twenty‐first century: will digital technologies strengthen democracy or accelerate new forms of authoritarianism and fascism? Against the backdrop of platform capitalism, AI‐driven communication, surveillance infrastructures, disinformation and democratic crisis, the study asks
Christian Fuchs   +2 more
wiley   +1 more source

一种新型极限碳酸盐硬度测定仪及评价方法研究

open access: yesGongye shui chuli, 2009
开发了一种用于阻垢剂性能评价的新型极限碳酸盐硬度测定仪及评价方法,对5种常用阻垢剂的评价结果和静态容量瓶法及浓缩法评价结果相比性能优劣趋势相同,均为PBTCA>ATMP>HEDP>YSW-301>T-225;极限碳酸盐硬度测定仪的最佳评价温度为70℃;当达到极限碳酸盐硬度时,水样的pH将突降,电导率变化趋于平缓。
冯婕, 郦和生, 王岽
doaj   +2 more sources

家庭功能评定量表及临床应用进展

open access: yesHuli yanjiu, 2008
摘要: (免费在线浏览)摘要:从家庭功能评定量表(FAD)的主要内容、方法和评价及其效度、信度和临床应用方面详细地介绍了家庭功能评定量表的应用进展,并提出了不足和改进意见。
苏银花, 段功香
doaj  

国内高校信息化教学评价的回顾与展望

open access: yes, 2019
本文回顾了1990至2019年我国高校信息化教学评价的发展与现状.目前信息化教学评价以多元化、过程性模式进行成为研究者共识,并构筑有系统性评价模型.总体呈现描述性研究、定性研究多于验证性研究和定量研究的趋势.我国信息化教学评价仍处于起步阶段,需在验证性研究和定量研究方面深度挖掘,并应着力于信息化教学评价的内涵研究.
郑开梅
core  

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