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941.
Ethnicity as a moderator of the theory of planned behavior and physical activity in college students
Blanchard CM Kupperman J Sparling P Nehl E Rhodes RE Courneya KS Baker F Hunt T 《Research quarterly for exercise and sport》2007,78(5):531-541
Most college students do not meet physical activity (PA) guidelines, and ethnic disparities exist. The present study examined the utility of the theory of planned behavior (TPB) in explaining PA intentions and behavior in black and white college students and whether any TPB relationships were moderated by ethnicity. Black (n=170) and white (n=180) students completed a baseline TPB questionnaire and PA assessment 2 weeks later Hierarchical latent variable regression analyses showed that affective attitude, subjective norm, and perceived behavioral control (PBC) were significant predictors of intention for both ethnic groups, whereas the PBC-intention relationship was significantly stronger for white students. Intention significantly predicted PA for both ethnic groups. Furthermore, common and ethnic-specific beliefs were identified. 相似文献
942.
Francis E.H. Tay D.G. Guo L. Xu M.N. Nyan K.L. Yap 《Journal of The Franklin Institute》2009,346(6):531-542
This paper proposes a remote vital signs monitoring system, which integrates wireless body area network (WBAN) and personal digital assistant (PDA) phone technology. Four different physiological signs, e.g., ECG, SpO2, temperature and blood pressure, can be continuously acquired or derived from two wireless sensor nodes—ECG sensor and integrated SpO2/temperature sensor. Once sentinel events happened or the request to real-time display vital signs is confirmed, all physiological signs and critical indices will be immediately transmitted to patient's PDA phone through Bluetooth and further relayed to doctor's PDA phone through global system for mobile communication (GSM) technology. A prototype of such system has been successfully developed and implemented, which will offer high standard of healthcare with a major reduction in cost for our society. 相似文献
943.
944.
Barbara Read Becky Francis Christine Skelton 《British Journal of Sociology of Education》2011,32(2):169-183
This paper draws on data from a research project investigating gendered identities and interactions of high‐achieving students in Year Eight in England (12–13 years old), particularly in relation to students’ ‘popularity’ amongst their peers. As part of this study 71 students were interviewed from nine different schools in urban, rural and small town locations. From an analysis of participants’ conceptions of the characteristics of ‘popular’ and ‘unpopular’ students, this paper looks in depth at notions of in/authenticity and how it is perceived and judged in relation to the self and others. In particular, the paper focuses on the genderedness of such discourses of in/authenticity as constructed by these students, and relates such concerns to theorizations of ‘impossible’ femininity. 相似文献
945.
Ryan S. Nixon Benjamin K. Campbell Julie A. Luft 《International Journal of Science Education》2016,38(10):1636-1654
Science teachers need to understand the subject matter they teach. While subject matter knowledge (SMK) can improve with classroom teaching experience, it is problematic that many secondary science teachers leave the profession before garnering extensive classroom experience. Furthermore, many new science teachers are assigned to teach science subjects for which they do not hold a degree. This study investigates the SMK of new secondary science teachers assigned to teach chemistry in their first three years of teaching. These new teachers do not have the advantage of years of experience to develop their SMK and half hold a degree in biology rather than chemistry. This qualitative study explores the effects of holding a degree in the subject area one teaches as well as classroom teaching experience on teachers’ SMK for two chemistry topics, conservation of mass and chemical equilibrium. Qualitative analysis of semi-structured interviews indicated that the SMK of teachers who had a chemistry degree and more extensive classroom experience was more coherent, chemistry-focused, and sophisticated than that of teachers who lacked this preparation and experience. This study provides evidence that new science teachers’ SMK is influenced by both holding a degree in the subject area and having classroom experience. 相似文献
946.
Schatschneider C Carlson CD Francis DJ Foorman BR Fletcher JM 《Journal of learning disabilities》2002,35(3):245-256
It is widely accepted that deficits in phonological awareness skills are related to reading difficulties. Recently, another source of reading difficulty has been identified that involves naming speed, and combined impairments in phonological skills and naming speed will produce more severe reading deficits than single deficits in either of these cognitive skills. The purpose of this study was to investigate the consequences of grouping children based on the presence or absence of deficits in these skills. We demonstrate that the greater severity of reading impairment found in children with a double deficit could be due in part to a statistical artifact caused by grouping children based on their performance on two correlated continuous variables. This artifact also makes it difficult to establish the relative impact of deficits in naming speed on reading ability independent of deficits in phonological awareness. 相似文献
947.
Mentoring may be seen as a process that helps student teachers become professional teachers. In this context, a variety of significant roles played by mentors have been identified in the literature. This paper reports on mentors' perceptions of the most important roles selected from a given list, as revealed through questionnaire and interview data. This analysis forms part of a large‐scale evaluative project of a school–university partnership scheme initiated by the University of Hong Kong. The findings indicate overwhelming attention given to the role of ‘provider of feedback’, which stresses the provision of pragmatic advice given to student teachers according to their personal strengths and weaknesses. However, for those mentors whose perception of the most important role had changed over time, the direction of change was towards roles such as ‘counselor’, ‘equal partner’ and ‘critical friend’, which emphasize a more relational aspect of working together with student teachers to achieve professional development. 相似文献
948.
Man vs. Machine: A Junior‐Level Laboratory Exercise Comparing Human and Instrumental Detection Limits 下载免费PDF全文
Ryan J. Elias Helene Hopfer Amanda N. Hofstaedter John E. Hayes 《Journal of Food Science Education》2017,16(3):72-76
The human nose is a very sensitive detector and is able to detect potent aroma compounds down to low ng/L levels. These levels are often below detection limits of analytical instrumentation. The following laboratory exercise is designed to compare instrumental and human methods for the detection of volatile odor active compounds. Reference standards of 3‐mercapto‐1‐hexanol (3MH), a secondary thiol that is important to food quality, are analyzed by gas chromatography with flame ionization detection (GC‐FID), and these raw data are provided to students. Students also perform a series of 3‐alternative forced choice (3‐AFC) sensory tests to determine the human detection limits in a series of samples. For both data sets, 2 methods of data analysis (standard deviation of the response and the slope and signal‐to‐noise ratio for GC‐FID data; forced‐choice ascending concentration series method of limits and linear regression for 3‐AFC data) will be used to estimate instrumental detection limits and human thresholds. GC‐FID and 3‐AFC results are then compared by the students to demonstrate the importance of instrumental and human methods for food analysis, and to provide an experiential learning opportunity to critically think through multiple methods of analysis and compare the outcomes of those methods. In completing the laboratory exercise and discussion questions, students will gain an understanding of the advantages and disadvantages of human and instrumental measurements in food analysis, and compare the outcome of common data analysis methods for instrumental and sensory data. 相似文献
949.
Although numerous studies have explored international students' experiences, there is a dearth of research exploring the perspectives of professionals who have contact with international students. The present study addresses this gap in the literature by providing an analysis of higher educational professionals' (n=11) perspectives of international students' experiences and analysing the challenges which arise when working with international students. In this study, semi-structured interviews were conducted with staff from a large Irish Higher Education Institution. Participants described a range of difficulties experienced by international students, including sociocultural and psychological difficulties, and outlined a number of challenges which exist when dealing with international students, most of which relate to cultural differences and lack of interest in internationalisation. The findings have important policy and practical implications for higher education service provision and point to the need to consider internationalisation as a process which can be enriching for international students, host students and staff members alike. 相似文献
950.
The New Zealand Curriculum Framework, 1993, is the official document for teaching, learning and assessment in New Zealand schools. It consists of a set of curriculum statements, which define the learning principles, achievement aims and essential skills for seven learning areas. It also indicates the place of attitudes and values in the school curriculum. This paper investigates the requirements for teaching attitudes, values and ethics in the curriculum statements for Science, Biology and Technology. The question is raised whether the teaching of skills for resolving moral and ethical dilemmas are required by the official education standards in New Zealand, and internationally.The paper reports on a survey done on pre-service teacher trainees of their understanding of these requirements. Implications for courses that might need to be provided in future pre-service teacher education programmes are briefly discussed. 相似文献