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化学教学中实施研究性学习初探
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作者 杨爱萍 《课程教材教学研究(中教研究)》 2012年第Z5期34-35,共2页
一、研究性学习的含义及基本特征研究性学习是指学生在教师的指导下,以类似科学研究的方式去主动获取知识,应用知识解决问题、形成观点的一种学习方式,是根据教材或其它读物提供的学习材料,让学生自主地判断知识类型,确定学习目标,选择... 一、研究性学习的含义及基本特征研究性学习是指学生在教师的指导下,以类似科学研究的方式去主动获取知识,应用知识解决问题、形成观点的一种学习方式,是根据教材或其它读物提供的学习材料,让学生自主地判断知识类型,确定学习目标,选择适当的思维模式,通过个体或群体的学习活动来掌握知识,培养科学方法和探索能力。 展开更多
关键词 探索能力 习过程 知识类型 习活动 研究课题 审美情感 课题报告 喷泉实验 创新精神 接受性学
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Early Bilingual Vocabulary Development Among Low-SES Ethnic Minority Learners in China:The Case of Uyghur and Kazak Children 被引量:1
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作者 Guofang LI Xiaorong YIN Xuejun(Ryan)JI 《Chinese Journal of Applied Linguistics》 2022年第3期323-339,484,共18页
Vocabulary knowledge is one of the most important aspects of language development. For bilingual students, early vocabulary development often predicts their future bilingual success. This paper examines early bilingua... Vocabulary knowledge is one of the most important aspects of language development. For bilingual students, early vocabulary development often predicts their future bilingual success. This paper examines early bilingual receptive vocabulary knowledge of ethnic minority children(N=135) from two large ethnic language communities(Uyghur and Kazak) in three national-level povertystricken counties in Xinjiang, China. The children’s bilingual vocabulary knowledge was assessed using translated versions of the Peabody Picture Vocabulary Test-IV(PPTV-IV) in Putonghua(PTH) and their mother tongue(MT) Uyghur or Kazak. Data were analyzed through four General Linear Models(GLM). The analyses showed that both groups scored higher in MT vocabulary knowledge than that in their PTH, although the Kazak students’ MT vocabulary scores were lower than those of the Uyghurs. While gender, age, L1, or residence location were not significant factors in differences across the two groups in PTH, among the Kazak children, the main effect of age was significant in MT;and among Uyghur children, residence location had a significant effect. The two groups also differed in patterns of acquisition in different parts of speech(nouns, verbs, and attributes) with Uyghur children performing strongest in MT and PTH verbs. The findings have important implications for ensuring the quality of early bilingual education among impoverished Chinese minority communities. 展开更多
关键词 early bilingualism receptive vocabulary ethnic minorities PRESCHOOLERS UYGHUR Kazak
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Effect of Fortifying Camel Milk with Sheep Milk on the Processing Properties, Chemical Composition and Acceptability of Cheeses 被引量:1
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作者 Abdl Whap M. A. Derar Ibtisam E. M. El Zubeir 《Journal of Food Science and Engineering》 2016年第4期215-226,共12页
This study investigates the properties of cheeses made from camel milk, sheep milk and their mixtures. Cheeses were made using Camifloc enzyme as a coagulant after addition of calcium chloride. Camel's milk was mixed... This study investigates the properties of cheeses made from camel milk, sheep milk and their mixtures. Cheeses were made using Camifloc enzyme as a coagulant after addition of calcium chloride. Camel's milk was mixed with sheep's milk at the levels of 25%, 50% and 75%. Then, the cheeses were stored for 21 days in the whey at room temperature (37-40 ~C). The study revealed that fortifying camel's milk with sheep's milk improved the processing properties of camel milk for cheese making. The addition of 50% sheep's milk to camel's milk reduced the coagulation time to about 46.15%. The addition of 25%, 50% and 75% sheep's milk to camel's milk revealed yield of 13.76%, 21.33% and 26.2%, respectively. However, the cheese made from pure camel's milk and sheep's milk revealed yield of 10.66% and 23.53%, respectively. There were significant (P 〈 0.001) differences in total solids, protein, fat, ash, acidity and overall acceptability among the cheeses made from different types of milk. The cheeses made from camel's milk after addition of 75% and 50% sheep's milk were the most acceptable compared to other cheeses. Hence sheep's milk could be added to camel's milk for improvement of cheese properties. 展开更多
关键词 CAMELS SHEEP MILK cheese processing composition sensory characteristics Camifloc enzyme.
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Investigation of Bed Joint Reinforcement Influence on Mechanical Properties of Masonry under Compression
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作者 Lukasz Drobiec 《Journal of Civil Engineering and Architecture》 2013年第10期1229-1239,共11页
The results of investigations of compressed reinforced masonry walls subjected to axial compression are presented. Tests were carried out using specimens made of clay bricks and cement-lime mortar. As reinforcement, s... The results of investigations of compressed reinforced masonry walls subjected to axial compression are presented. Tests were carried out using specimens made of clay bricks and cement-lime mortar. As reinforcement, smooth and spiral twisted longitudinal rods, two types of structural wire mesh and truss type reinforcement were used. Two percentages of bed joint reinforcement, about 0.1% and 0.05% were applied. For each type of reinforcement, three masonry walls were tested. Additionally, nine unreinforced models were also tested. The main aim of the investigations presented is to determine the effect of different types of reinforcement on the load capacity and failure. Measurement of the strains of reinforcing bars permitted the recording of the strain level at the moment of crack appearance and also at the moment of failure. 展开更多
关键词 Reinforced masonry bed joint reinforcement compressed masonry.
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On the Right Itself: A Meta-ethical Reading
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作者 Liu Qing-ping 《Fudan Journal of the Humanities and Social Sciences》 2012年第4期98-115,共18页
Different from the elementary acceptability of the desirable good, the fight refers to the proper acceptability of the abhorrent evil caused by human action aiming at some good in its paradoxical structure due to the ... Different from the elementary acceptability of the desirable good, the fight refers to the proper acceptability of the abhorrent evil caused by human action aiming at some good in its paradoxical structure due to the conflict of diverse goods. As one of the most fundamental and important standards of human values, then, it has both the negative function to prevent unacceptable evils and the positive one to achieve permissible goods, and therefore can guarantee human intended existence against substantive destruction. 展开更多
关键词 RIGHT ACCEPTABILITY good EVIL conflict of goods parado:dcalstructure
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