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Abstract

This article discusses the use of R programing language for executing a sentiment analysis of tweets pertaining to library topics. This discussion is situated within the literature of marketing and management sciences, which is employing methods of machine learning and business intelligence to make informed decision-making, and library administration, which has expressed great interest in social media engagement within its literature but has yet to adopt these types of analysis. Presented in this article is a sample code with instructions on how users may execute it within R to retrieve and analyze tweets relevant to library services. Two examples created using the code (analysis of top librarians’ tweets and analysis of posts about major book publishers) are used to demonstrate the functionality of the code. The code presented in this article may be used by libraries to analyze tweets about their library and library-related topics, which, in turn, may inform management and marketing design.  相似文献   
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The hypothesis that young adolescents in vocational education programs would differ from young adolescents in a regular program along several affective dimensions was examined. The Today Form of the Multiple Affect Adjective Check List (MAACL) was administered twice during the school year to 111 students in a vocational program and to 50 students in regular classrooms. Dimensions of Anxiety, Depression, and Hostility were examined. Significant main effects for all three dimensions were noted for school program (regular vs. CVAE) and for grade (seventh vs. eighth). Students in the vocational program and those in seventh grade scored higher on Anxiety, Depression, and Hostility. These differences persisted across time, with the exception of Depression, for which there was a significant interaction between time (pretest vs. posttest) and school program (regular vs. CVAE), with regular students reporting increased depression at the second testing.  相似文献   
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Nineteen elementary teachers were observed for the frequency with which they modeled self-praise for their students and taught their students to praise and evaluate themselves. Measures of student self-concept, anxiety, and achievement responsibility were taken at the end of the year. It was found that teacher modeling of self-praise correlated negatively with boys' selfconcept and positively with girls'. Teacher encouragement of students to praise other students correlated positively with boys' anxiety and negatively with girls'. Teacher modeling of self-praise and teacher encouragement of students to praise other students were the best predictors of self-concept.  相似文献   
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Prestigious professional organisations have questioned the efficacy of resistive training by children or have often neglected to address weightlifting in their position papers on resistive training for children. The purpose of this paper was to address the deficit in data regarding the efficacy of training children for weightlifting and to report data regarding to safety in this population. Eleven subjects (3 female, 8 male) who had trained at the USA Weightlifting Development Centre in Shreveport Louisiana for a minimum of 22 months (mean = 28.8; SD +/- 4.4) served as subjects for this study. Means for the pool of subjects subjected to t-test to compare data obtained at each subject's initial competition with that obtained at the individual's most recent competition revealed significant positive changes in body weight, snatch weight, clean and jerk weight, and total weight lifted. The latter three were significant both in absolute weight and in weight lifted per kg of body weight. Total weight lifted at competitions plotted separately for boys and for girls across time indicated an apparently steeper slope of improvement for boys. The latter were not tested for significance because of the small sample sizes. The lack of injury in training and in 534 competitive lifts was discussed. None required medical attention or loss of training time. It was concluded that there can be no doubt regarding the efficacy of weightlifting as carried out at the USA Weightlifting Development Centre. The importance of proper application of scientific theory of conditioning in a conservative manner for this population was emphasised.  相似文献   
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Jude Brady 《Literacy》2015,49(3):149-157
This paper examines the official requirement for the promotion of standard English using Bourdieu's concepts of the production and reproduction of legitimate language. It explores the political drive behind the demand for this standard dialect in England and, through a survey on the views of fifty‐two 14 and 15 year olds, analyses the impact that this is having on adolescent identities in an inner‐city London school. The students perceive non‐standard English as a vehicle through which they can express their ‘true’ selves and construct a collective teenage identity. They use language to construct a division between themselves as teenagers and the adult ‘others’. Although the students do not necessarily want to use non‐standard English in the classroom, or with their teachers, educators need to consider how to afford pupils access to the ‘official language’, which grants privilege and power, without devaluing the identities which they may associate with other dialect forms. The final part of the paper explores the value of Cummin's concept of ‘transformative pedagogy’ (2002) in relation to the study of dialect with adolescents.  相似文献   
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Theoretical explanations, systemic response, and policy work on offenders and specific crime types are the backbone of criminal justice curricula in the United States. However, a similar breadth and depth of education on crime victims appear to be lacking in traditional criminal justice curricula, despite voluminous research on victims of crime. In this exploratory study, the authors conducted a content analysis of 679 programs from the Academy of Criminal Justice (ACJS) website directory. Departmental and course-level variables were included in the analysis. Results indicate that while more than half of the programs have faculty with expressed interests in victimization, only 11% of programs studied required coursework on crime victims and/or victimization. Implications of the results are discussed.  相似文献   
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