Results 51 to 60 of about 51,969 (188)
Study on Antioxidant Activities of bee Pollen Extractives Using Three Kinds Solvents(蜂花粉3种溶剂提取物的抗氧化性研究) [PDF]
Shipin kexue jishu xuebao, 2015 To investigate the antioxidant activities of the bee pollen extractives , water, methanol, and chloroform were used as extraction solvents and DPPH eliminating rate, ·O- removing rate, ·OH- eliminating rate, and reducing power were determined.
LV Jianing(吕佳宁) +5 more
doaj +1 more source
An Empirical Analysis of RMB Exchange Rate ExpectationFeatures---- Based on the RMB Foreign Exchange Option [PDF]
, 2016 自2005年汇改以来，人民币汇率浮动幅度不断扩大，人民币定价机制日趋 市场化。与此同时，伴随着人民币国际化进程的不断推进，影响人民币汇率的因 素更加复杂多元。因此，在人民币国际化程度不断提升的今天，人民币汇率变动 的研究面临新的挑战，显得越来越重要。人民币汇率预期作为前瞻性指标，对预 判汇率走势及变动具有重要作用，尤其如何从金融市场相关产品的价格中提取汇 率预期更具有实际意义。 因此本文基于一个月期人民币外汇期权数据提取人民币短期汇率预期，并对 人民币短期汇率预期分布特征及影响因素进行分析 ...
郑欣
core
International Journal of Applied Linguistics, EarlyView.ABSTRACT This computational linguistic study analyzes 8743 Rednote posts to examine how sentiment, emotion, and content domain collectively shape social comparison dynamics on social media. We identify four key findings: (1) an emotional gradient, where upward comparison content exhibits the highest sentiment scores and downward comparison the lowest; (
Michelle Mingyue Gu +7 more
wiley +1 more source
Zhongguo youzhi旨在揭示弱酸高盐法提取菜籽蛋白的潜力，以脱脂低温压榨菜籽饼为原料，MgCl2溶液为提取液，采用弱酸高盐法提取菜籽蛋白，采用单因素实验研究提取温度、提取pH、提取时间、提取液浓度及料液比对菜籽蛋白提取率的影响，采用正交实验进行菜籽蛋白的弱酸高盐法提取工艺优化，并比较弱酸高盐法菜籽蛋白与碱提酸沉法菜籽蛋白在抗营养因子（植酸、硫苷和单宁）含量与感官特性（气味、色泽）上的差异。结果表明：弱酸高盐法提取菜籽蛋白的最佳工艺条件为提取温度50 ℃、提取pH 6.5、提取时间150 min、提取液浓度150 mmol ...
方雪莲1,2，冯子盛1，何静仁1,3,4，杨尚华5，张瑞1,3,4 FANG Xuelian1,2, FENG Zisheng1, HE Jingren1,3,4, YANG Shanghua5, ZHANG Rui1,3,4
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Synthesizing Empirical Research on Learner Metacognition in Second Language Writing
International Journal of Applied Linguistics, EarlyView.ABSTRACT Despite considerable research interest in learner metacognition in second language (L2) writing, there is not yet a review that synthesizes the existing empirical findings and discusses their implications. To fill the void, this systematic review synthesized 39 empirical studies on learner metacognition in L2 writing and examined their salient
Chen Li, Icy Lee, Zhicheng Mao
wiley +1 more source
Comparison of Different Extraction Methods About Polysaccharides of Chestnut Fruit(不同方法对板栗仁多糖提取效果的比较) [PDF]
Shipin kexue jishu xuebao, 2016 Chestnut polysaccharide was extracted by water extraction method, enzyme-assisted method, and microwave-assisted method. According to single factor experiments, the orthogonal design was used to optimize the polysaccharide extraction process. The results
ZHANG Mei(张美) +2 more
doaj +1 more source
Partisans' evaluations of unconstitutional legislative activity
Policy Studies Journal, EarlyView.Abstract In this research note, we examine whether public evaluations of a policy depend on the constitutionality of the process by which that policy was passed. We observe whether people's views depend on accusations that a policy was passed in violation of a state constitution's single subject rule, and whether the effect of that accusation depends ...
Kevin K. Banda +2 more
wiley +1 more source
Study on establishing an approach for rapid screening RXRα ligands from medicinal herbs [PDF]
, 2016 维甲酸X受体α（RXRα）是研究抗癌药物的重要靶点之一，其配体Targretin已由FDA批准用于治疗皮肤癌，目前已知的天然RXRα小分子配体非常有限，因此建立一种新的活性筛选模型从中药及天然产物中快速发现以RXRα为活性靶点的新型小分子配体具有重要意义。 前期研究发现黄牛木属植物中的氧杂蒽酮类化合物能够抑制RXRα的转录活化功能，其中，CF-31能够直接与RXRα通过疏水性相互作用的方式结合，因此，本研究以黄牛木属植物黄牛木和红芽木为拟建立活性筛选体系的候选药材，对其60%乙醇水提取物经大孔树脂90 ...
陈虹
core
Topics as Outcomes: Modeling the Influence of Intergovernmental Grants on Policy Diffusion
Policy Studies Journal, EarlyView.ABSTRACT Intergovernmental grants stimulate the diffusion of policy reforms, as the federal government provides states with a financial incentive to adopt policies aligned with federal priorities. Less is known about the extent to which these grants also stimulate horizontal diffusion across states.
NaLette Brodnax, Sarah James
wiley +1 more source
Policy Studies Journal, EarlyView.ABSTRACT The social construction of target populations (SCTP) framework emphasizes the ways in which target populations' levels of political power and deservingness shape the allocation of policy benefits, but less attention has been devoted to the conditions under which the same target population may be considered deserving in one policy context but ...
Elizabeth Bell +3 more
wiley +1 more source