Language and culture are closely related with each other: language is the carrier and a fundamental part of culture, while culture has an intrinsic and indispensable impact on language and is also reflected in languag...Language and culture are closely related with each other: language is the carrier and a fundamental part of culture, while culture has an intrinsic and indispensable impact on language and is also reflected in language. So if in the language learning and teaching, attention is only paid to the linguistic forms but the relationship between language and culture is ignored, then the learner's linguistic ability will not be equivalent to his or her social and cultural communication competence. Especially in the times of globalization with increasing transna tional and cross-cultural communication, the knowledge of cultural background is the must prerequisite for not only the avoidance of cul tural "conflict" but the success of communication. Based on the studies of several cross-cultural communication cases and the analysis of the relationship between language and culture, including the famous Sapir-Whorf hypothesis, this paper is aimed to analyze the intrinsic and in dispensable relationship between language learning and culture learning.展开更多
BACKGROUND： Studies have shown that neurogenesis in the dentate gyrus plays an important role in learning and memory. However, studies have not determined whether the superior cervical ganglion or the sympathetic ner...BACKGROUND： Studies have shown that neurogenesis in the dentate gyrus plays an important role in learning and memory. However, studies have not determined whether the superior cervical ganglion or the sympathetic nerve system influences hippocampal neurogenesis or learning and memory in adult rats. OBJECTIVE： To observe differences in dentate gyrus neurogenesis, as well as learning and memory, in adult rats following superior cervical ganglionectomy. DESIGN, TIME AND SETTING： A randomized, controlled, animal study was performed at the Immunohistochemistry Laboratory of the School of Life Sciences in Lanzhou University from July 2006 to July 2007. MATERIALS： Doublecortin polyclonal antibody was provided by Santa Cruz Biotechnology, USA; avidin-biotin-peroxidase complex was purchased from Zhongshan Goldenbride Biotechnology, China; Morris water maze was bought from Taimeng Technology, China. METHODS： A total of 20 adult, male, Wistar rats were randomly divided into surgery and control groups, with 10 rats in each group. In the surgery group, the bilateral superior cervical ganglions were transected. In the control group, the superior cervical ganglions were only exposed, but no ganglionectomy was performed. MAIN OUTCOME MEASURES： To examine distribution, morphology, and number of newborn neurons in the dentate gyrus using doublecortin immunohistochemistry at 36 days following surgical procedures. To examine ability of learning and memory in adult rats using the Morris water maze at 30 days following surgical procedures. RESULTS： Doublecortin immunohistochemical results showed that a reduction in the number of doublecortin-positive neurons in the surgery group compared to the control group （P 〈 0.05）, while the distribution of doublecortin-positive neurons was identical in the two groups. The surgery group exhibited significantly worse performance in learning and spatial memory tasks compared to the control group （P 〈 0.05）. CONCLUSION： Superior cervical ganglienectomy inhibited neurogenesis in the dentate gyrus and decreased learning and memory abilities in adult rats.展开更多
Language transfer(LA) is the fundamental notion in language learning. Owing to the difference in area and minorities,the language teaching is particular in Xinjiang Uygur Autonomous Region. This article aims at presen...Language transfer(LA) is the fundamental notion in language learning. Owing to the difference in area and minorities,the language teaching is particular in Xinjiang Uygur Autonomous Region. This article aims at presenting the Tri- language Transfer among Uygur, English and Chinese and the interrelationship between them to explore the significant role LA plays.Hopefully, it will give some constructive advice and enlightenment on the development of English teaching and learning among the Uygur students.展开更多
This paper is mainly about how the two affective factors—motivation and attitude influence adults' foreign language learning. The topic is discussed from the aspect of some factors which indirectly influence adul...This paper is mainly about how the two affective factors—motivation and attitude influence adults' foreign language learning. The topic is discussed from the aspect of some factors which indirectly influence adults' language learning through influencing their learning motivation. Also positive attitude will promote adult foreign language learning.展开更多
With the time passing by and development of this society,almost everyone has a cell phone,we may see that cell phone as a new fifth medium after computer,having its own characters and advantages,many learners research...With the time passing by and development of this society,almost everyone has a cell phone,we may see that cell phone as a new fifth medium after computer,having its own characters and advantages,many learners research the communica tive function of cell phone and some from the technological level.This thesis aims at trying to reveal cultural functions of culture,aiming at improve cell phone' s learning and culture functions in a more proper way.展开更多
文摘Language and culture are closely related with each other: language is the carrier and a fundamental part of culture, while culture has an intrinsic and indispensable impact on language and is also reflected in language. So if in the language learning and teaching, attention is only paid to the linguistic forms but the relationship between language and culture is ignored, then the learner's linguistic ability will not be equivalent to his or her social and cultural communication competence. Especially in the times of globalization with increasing transna tional and cross-cultural communication, the knowledge of cultural background is the must prerequisite for not only the avoidance of cul tural "conflict" but the success of communication. Based on the studies of several cross-cultural communication cases and the analysis of the relationship between language and culture, including the famous Sapir-Whorf hypothesis, this paper is aimed to analyze the intrinsic and in dispensable relationship between language learning and culture learning.
基金the Key Project of Scientific Research of Ministry of Education, No.106153
文摘BACKGROUND： Studies have shown that neurogenesis in the dentate gyrus plays an important role in learning and memory. However, studies have not determined whether the superior cervical ganglion or the sympathetic nerve system influences hippocampal neurogenesis or learning and memory in adult rats. OBJECTIVE： To observe differences in dentate gyrus neurogenesis, as well as learning and memory, in adult rats following superior cervical ganglionectomy. DESIGN, TIME AND SETTING： A randomized, controlled, animal study was performed at the Immunohistochemistry Laboratory of the School of Life Sciences in Lanzhou University from July 2006 to July 2007. MATERIALS： Doublecortin polyclonal antibody was provided by Santa Cruz Biotechnology, USA; avidin-biotin-peroxidase complex was purchased from Zhongshan Goldenbride Biotechnology, China; Morris water maze was bought from Taimeng Technology, China. METHODS： A total of 20 adult, male, Wistar rats were randomly divided into surgery and control groups, with 10 rats in each group. In the surgery group, the bilateral superior cervical ganglions were transected. In the control group, the superior cervical ganglions were only exposed, but no ganglionectomy was performed. MAIN OUTCOME MEASURES： To examine distribution, morphology, and number of newborn neurons in the dentate gyrus using doublecortin immunohistochemistry at 36 days following surgical procedures. To examine ability of learning and memory in adult rats using the Morris water maze at 30 days following surgical procedures. RESULTS： Doublecortin immunohistochemical results showed that a reduction in the number of doublecortin-positive neurons in the surgery group compared to the control group （P 〈 0.05）, while the distribution of doublecortin-positive neurons was identical in the two groups. The surgery group exhibited significantly worse performance in learning and spatial memory tasks compared to the control group （P 〈 0.05）. CONCLUSION： Superior cervical ganglienectomy inhibited neurogenesis in the dentate gyrus and decreased learning and memory abilities in adult rats.
文摘Language transfer(LA) is the fundamental notion in language learning. Owing to the difference in area and minorities,the language teaching is particular in Xinjiang Uygur Autonomous Region. This article aims at presenting the Tri- language Transfer among Uygur, English and Chinese and the interrelationship between them to explore the significant role LA plays.Hopefully, it will give some constructive advice and enlightenment on the development of English teaching and learning among the Uygur students.
文摘This paper is mainly about how the two affective factors—motivation and attitude influence adults' foreign language learning. The topic is discussed from the aspect of some factors which indirectly influence adults' language learning through influencing their learning motivation. Also positive attitude will promote adult foreign language learning.
文摘With the time passing by and development of this society,almost everyone has a cell phone,we may see that cell phone as a new fifth medium after computer,having its own characters and advantages,many learners research the communica tive function of cell phone and some from the technological level.This thesis aims at trying to reveal cultural functions of culture,aiming at improve cell phone' s learning and culture functions in a more proper way.
文摘为了提高软件缺陷预测的准确率,利用布谷鸟搜索(cuckoo search,CS)算法的寻优能力和人工神经网络(artificial neural network,ANN)算法的非线性计算能力,提出了基于CS-ANN的软件缺陷预测方法。此方法首先使用基于关联规则的特征选择算法降低数据的维度,去除了噪声属性;然后利用布谷鸟搜索算法寻找神经网络算法的权值,使用权值和神经网络算法构建出预测模型;最后使用此模型完成缺陷预测。使用公开的NASA数据集进行仿真实验,结果表明该模型降低了误报率,并提高了预测的准确率,综合评价指标AUC(area under the ROC curve)、F1值和G-mean都优于现有模型。
