从认知语义学角度解释英语介词behind的多义性

从认知语义学角度解释英语介词behind的多义现象,指出其意义包括空间意义和隐喻意义。空间意义是该介词体现的最基本的意义,不同的空间意义通过隐喻映射方式扩展为各自的隐喻意义,其多义性形成过程实际是由一个认知域向其他认知域,即由空间认知域向状态、时间等认知域的投射过程。

基于自适应移频分析法的Voltage-Behind-Reactance异步电机多时间尺度暂态建模与仿真

为满足对电力系统多时间尺度暂态过程准确、快速仿真的需要,提出了一种基于自适应移频分析法的voltage-behind-reactance(VBR)异步电机多时间尺度模型。首先,基于希尔伯特变换,将传统电气信号转换为相应的解析信号;进一步,引入灵活的移频变换,利用解析信号构建异步电机暂态仿真模型。这样,移动频率成为可调节的模型参数。所提出的电机模型通过设置不同的移动频率,能够同时实现准确的高频暂态过程仿真和高效的低频暂态过程仿真。当移动频率等于零时,该模型与传统电磁暂态电机模型等价,可刻画高频暂态过程。当移动频率等于系统基波频率时,该模型适用于大步长仿真,获得低频暂态包络曲线。仿真结果表明,所提出的模型可实现准确和高效的异步电机多时间尺度暂态仿真。

A Study on Left-behind Junior Students'Foreign Language Learning Anxiety

Since the 1960s, foreign language educators and researchers home and abroad have started to pay attention to the influence of the affective variables including language learning anxiety on foreign language learning. This thesis tried to find out the factors that may influence the foreign language learning anxiety level of left-behind students and put forward ways to help lower down the foreign language learning anxiety level of the left-behind junior middle school students.

The impact of migration on the food consumption and nutrition of left-behind family members: Evidence from a minority mountainous region of southwestern China

While migration is widely recognized as a valid option for improving farmers’ income, the welfare effects of migration on left-behind family members are ambiguous. This study examines the impacts of migration on left-behind family members’ food consumption and nutrient intake, particularly in remote rural areas in China. Based on household survey data collected from 611 smallholder rubber farmers in Xishuangbanna Dai Autonomous Prefecture of southwestern China, the empirical results suggest that the migration of family members contributes to improving household net income, whereas it negatively affects left-behind family members’ consumption of grain and pork. Migration also leads to a decrease in left-behind family members’ nutrient intake. Surprisingly, the economic returns of farmers’ migration not only do not foster the transformation of household food consumption from a staple food-dominated dietary structure to one including more meat and dairy products but also reduce left-behind family members’ nutrient intake. This study adds to the literature on the impact of farmers’ migration. The findings have important implications for better understanding the impacts of migration on farmers’ livelihood and human capital development in rural China.

Analysis of the mass of behind-armor debris generated by RHA subjected to normal penetration of variable cross-section EFP

Analyzing the mass of behind-armor debris (BAD) generated by Rolled Homogeneous Armor (RHA) subjected to normal penetration of variable cross-section Explosively Formed Projectile (EFP) is the purpose of this paper. So theoretical analysis, numerical simulation and experimental data are combined to analyze the influence of variable cross-section characteristic on the time history of crater radius. Moreover the relationships between time history of crater radius (as well as mass of BAD) and the thickness of RHA (from 30mm to 70 mm) and the impact velocity of EFP (1650 m/s to 1860 m/s) are also investigated. The results indicate that: 1) being compared to the variable cross-section characteristic is ignored, the theoretical time history of crater radius is in better agreement with the simulation results when the variable cross-section characteristic is considered;2) being compared to the other three conditions of plug, the theoretical mass of BAD is in the best agreement with the simulation results when the shape of plug is frustum of a cone and the angle between generatrix and bottom is 45- and the axial length of mushroom is considered.

The Correlation between Social Anxiety and Loneliness of Left-Behind Children in Rural China: Effect of Coping Style

In this study, the relationship between social anxiety, coping style and loneliness amongst left-behind children was investigated. The participants were 773 left-behind children recruited from 8 junior middle schools in rural areas of Zhejiang Province in China who completed the Social Anxiety Scale for Children, Simplified Coping Style Questionnaire and Children’s Loneliness Scale. Results show that there was a moderate correlation between social anxiety and loneliness, and these variables had a significant negative relationship with positive coping style and a significant positive relationship with negative coping style. Furthermore, the left-behind children’s social anxiety, coping style and loneliness were different within specific demographic groups, such as gender, only child status and different type of parental work. Also negative coping style moderated the association between loneliness and social anxiety, so that children who were more likely to use negative coping strategies showed a stronger relationship between social anxiety and loneliness. Finally, the left-behind children’s social anxiety not only directly predicted their loneliness, but also had an indirect effect mediated by their copying style.

Parental Migration’s Effects on the Academic and Non-Academic Performance of Left-Behind Children in Rural China

This study investigates the impact of parental labor migration on the academic achievements and non-academic growth of left-behind children in fourth and seventh grades. Employing survey data collected from rural China in 2014, 2015, and 2016, we examine the effect of parental absence on children's academic achievement using Propensity Score Matching(PSM) and Difference in Difference(DID) methods. The results demonstrate that left-behind children whose parents have migrated for one year have statistically significantly lower academic scores. Academic scores drop lower for fourthgrade students and students from higher-income families. There are also adverse effects on left-behind children's confidence, teacher-student relationships, subjective well-being, and educational expectations if parents migrate for one year. Surprisingly, if parental migration lasts longer(totaling two years), these adverse effects disappear, and student's educational expectations even improve. These results may be because, over time, the adverse effects that occur immediately after parental migration are offset by the positive effects of migration(i.e. higher income). These conclusions can inform migrant parents on ways to utilize their resources to improve the academic performance of their left-behind children.

Good Experience of Values Education Mode in the UK and the US for the "Left-behind" Children's Values Education in China

Based on the development status and development characteristics of the "left-behind" children, we analyze the current situation of the "left-behind" children's values education in China. After studying the training methods and mode of young people's values in the US and Europe, we reflect on the "left-behind" children's values education in China, and point out the following deficiencies in the "left-behind" children's values education in China: the traditional Chinese culture is at the ebb, and socialist core values have not received close attention, being developed sluggishly; the educational content is stale and the method is single; the rise of science education leads to the decline of humanities education, hindering comprehensive human development. We draw the following precious experience from the values education in the UK and the US for the "left-behind" children's values education in China: laying great emphasis on humanities education, to promote comprehensive human development; seeking and reshaping the mainstream values under plural values; giving full play to the social forces, to promote the development of the "left-behind" children's values education.

Path of Student Volunteer Organizations in Agricultural Universities for Serving Rural Left-behind Children: A Case Study of Northwest A&F University

Most volunteer organizations in universities focus their attention on urban communities and residents,but neglect rural residents.Agricultural universities have responsibilities and conditions to serve rural areas,and should bring into play their leading role. This study surveyed situations of volunteers of Northwest A&F University serving rural left-behind children,and found that there are problems including weak volunteer awareness,unstable organization members,imperfect organization construction,and lack of effect incentive mechanism. Finally,it came up four recommendations: strengthening " active service" ideological education,improving management system construction,establishing incentive mechanism,and setting up brand project,to provide feasible path for agricultural universities serving rural weak groups in a better way.

＂The Lady With the Lamp＂from China The Story behind You Jianping Who Honored with 46(th Nightingale Award

On July 21,2017,the 46^(th)Nightingale Awards presentation ceremony was held in The Great Hal of the People,where You Jianping,a head nurse from Department of Infectious Disease in Southwest Hospital Affiliated to Third Military Medical University^([1-2]),was awarded with the international highest honor for nursing.You Jianping,who has engaged in nursing work for more than 25 years,has always ran in the front and shoulder heavy loads bravely no matter in high-intensity

Preliminary Study on Crime Prevention of Left-behind Children in Rural China

In the process of social and economic development in China,there appears the inevitable problem of crime of left-behind children.Extensive researches and disputes prove that it is,to a greater extent,a social phenomenon resulted from social factors. It is recommended to improve the treatment of migrant workers and solve the problem of school admission for their children,provide effective legal education for those left-behind children whose problem can not be solved in a short term,and supplement the guardianship role to control the crime rate of leftbehind children. Another more effective method is to resume effective control of people's social life through the rural cultural tradition,to fundamentally prevent crime of left-behind children.

The “behind-the-knee” test for menstrual tampon irritation

Colposcopic inspection of the vagina is a routine component of the safety assessment of intravaginal products. However, colposcopic findings occur frequently in healthy women, raising questions about their relevance to intravaginal product safety. Practical disadvantages limit the utility of colposcopy for evaluating menstrual tampons, among them the presence of background microtrauma, the inability to assess effects during menstruation, and, importantly, the question of whether post-hoc assessments are sufficiently sensitive to detect small inflammatory changes. The Behind-the-knee (BTK) test is an alternative for evaluating inflammatory and tissue dryness effects of physical articles by their repeated application to the popliteal fossa under an elastic bandage. It enables concurrent parallel comparisons of experimental and control articles over time and substantially increases the sensitivity of detecting small changes in tissue inflammation. With this protocol, uncompressed experimental and control tampons yielded comparable relative and absolute erythema scores (after overnight recovery) as did colposcopic assessment of the lower genital tract 3 to 48 hours after menstrual use. Scoring erythema in the BTK test immediately after product removal increased the level of visually discernible inflammation 6-fold. In a study of commercial menstrual pads, subclinical inflammation visualized with cross-polarized light correlated with the frequency of subjective reports of discomfort during the test and discriminated the relative tolerability of the two products determined by market surveillance, providing added confidence in the predictive value of the test. We believe the BTK test to be a valuable alternative to colposcopy for assessing inflammation and dryness associated with menstrual tampons.

Current Situation and Mental Health and Intervention Measures of Left-behind Children

In the Outline of the Twelfth Five-Year Plan for National Economic and Social Development of the People's Republic of China,it proposed of improving distribution and form of urbanization and strengthening urbanization management. With acceleration of the urbanization,numerous rural labors flow to cities,and the number of left-behind children becomes increasingly large,which not only increases burden of family and education,but also gives rise to many mental problems. Due to lack of family education,many left-behind children have mental,emotional and ethical disorder and problem,which creates hidden trouble for building a harmonious society and economic development. This paper analyzed current situation and factors influencing mental health of left-behind children,including family environment,grandparent upbringing,and school environment. Finally,it came up with pertinent intervention measures from changing ideas of parents,improving the relationship between parents and children,and improving mental health education of schools.

A Study of English Learning Motivation of Left-behind Children from the Perspective of L2 Motivational Self System

A survey carried out among 286 left-behind children in a middle school through the lens of L2 Motivational Self System presents that although left-behind children possess low level of English learning motivation,they are favorably disposed towards studying English.Among the three dimensions of L2 Motivational Self System in this survey,L2 Learning Experience influences English learning motivation of left-behind children most and Ideal L2 Self with Ought-to L2 Self ranks the second in affecting their motivation.Practicalimplications are also provided.

Research of Problems of Left-behind Children in the View of Inclusive Education

Inclusive Education is one of the most advanced educational concepts at the present time. It advocates raising the participation of children and alleviating the exclusion problems between them at the same time. Although China is a large agricultural country, under the situation of fast-growing economic development, an increasing number of adults prefer to work in big city,we call this"working fever". This situation contributes to a growing number of Left-behind children, the problem became severer. As a major receiver of basic education in China, Left-behind children may easily suffering from the problems due to their family. This violates the original intention of Inclusive Education.

Status of English Learning of the Left-behind Children

For every educator, focusing on their growth and development, paying more attention to their English education,those are new topics and new tasks, all of these problems of rural left-behind children are increasingly prominent. These problems caused by various reasons, such as family, school and society. In some way, to solve the English learning problem of left-behind students can promote the students' all-round development.

Narration and Healing of Psychological Trauma in Chinese Left-behind Children

The problem of left-behind children appears under the background of China’s industrialization,urbanization and modernization with the deepening of its reform and opening up. From 1980s,literature began to give attention to this special phenomenon.Many writers wrote about children’s psychological trauma in alienated families and social environment,and also gave suggestions on the healing of left-behind children’ psychological trauma in their works. This paper argues that the weakening of family education,the deficiency of schooling and the low social coordination are essential factors that lead to the psychological trauma of left-behind children in rural China. Joint effort from family,school and society contribute to the healing of the trauma,among which,love,writings and speeches are effective ways.

Twenty-seven Departments Establish a Joint Inter-ministry Meeting System for Care and Protection of Left-behind Children in Rural Areas

According to a document issued by the website of the Chinese government on April 5,in order to enhance the leadership and coordination of care and protection of left-behind children in rural areas and strengthen collaboration and cooperation between departments,

Sense of Happiness of Left-behind Elderly People in the Context of Rural Labor Transfer——A Case Study of Guizhou Province

Through questionnaires and interviews,this paper surveyed and studied the sense of happiness of 187 left-behind elderly people in Guizhou. The results show that in the context of the rural labor transfer,the sense of happiness of left-behind elderly people is generally low.There are many influencing factors and complex causes. Through analysis,it is found that transfer of family labor has a great impact on the sense of happiness of left-behind elderly people. Finally,it came up with some pertinent recommendations for raising the sense of happiness of left-behind elderly people.