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1.
The analysis and forecasting of male cycling time trial records established within England and Wales
The format of cycling time trials in England, Wales and Northern Ireland, involves riders competing individually over several fixed race distances of 10–100 miles in length and using time constrained formats of 12 and 24 h in duration. Drawing on data provided by the national governing body that covers the regions of England and Wales, an analysis of six male competition record progressions was undertaken to illustrate its progression. Future forecasts are then projected through use of the Singular Spectrum Analysis technique. This method has not been applied to sport-based time series data before. All six records have seen a progressive improvement and are non-linear in nature. Five records saw their highest level of record change during the 1950–1969 period. Whilst new record frequency generally has reduced since this period, the magnitude of performance improvement has generally increased. The Singular Spectrum Analysis technique successfully provided forecasted projections in the short to medium term with a high level of fit to the time series data. 相似文献
2.
Hosein Ajam Zibad Farahnaz Mohammadi Shahboulaghi Hassan Rafiey Maryam Rassouli 《Educational gerontology》2017,43(1):21-32
The present study was performed with the aim to explain older people’s perceptions of spiritual health. It was conducted using the conventional content analysis method. Twelve individuals aged 60 years or older with normal cognition participated in the study using purposive sampling. Data were collected by in-depth interviews. Data analysis performed using standard method of thematic analysis.The average age of the study participants was 71.25 ± 9.48. The data analysis resulted in three main categories of spiritual insight, spiritual function, and spiritual affection. The spiritual insight included cognition of God and belief in Him, understanding of the divine religions and belief in them, self-cognition, cognition of the creation, and belief in the hereafter. This category included the two subcategories of spiritual cognition and spiritual belief. Spiritual function represented the interactions that the older people experienced in relations with God, themselves, and others. This category consisted of the subcategories of relationship with God, relationship with others, and self-cultivation. The spiritual affection included loving God and other humans and consisted of the three subcategories of spiritual affections to God, others, and oneself. This study presents in-depth data on the concept of spiritual health from older people’s viewpoints. These findings would help healthcare teams in designing appropriate interventions for older people’s health promotion. Also, by using the results of this research, health researchers design more appropriate tools for measuring spiritual health based on older people’s perception of the concept of spiritual health. 相似文献
3.
Noorbehbahani Fakhroddin Mohammadi Azadeh Aminazadeh Mohammad 《Education and Information Technologies》2022,27(6):8413-8460
Education and Information Technologies - In recent years, online learning has received more attention than ever before. One of the most challenging aspects of online education is the students'... 相似文献
4.
Sue-san Ghahremani-Ghajar Hossein Mohammadi Doostdar Seyyed-Abdolhamid Mirhosseini 《Teaching in Higher Education》2013,18(3):269-281
This article explores an understanding of learning as authentic enquiry and language as a social practice of meaning construction as the theoretical perspectives underlying an educational initiation beyond mainstream tertiary language education. With a general ethnographic approach and relying on multiple data sources, we investigate critical practices of teaching medical English in an Iranian university and illustrate a contextualized instance of enquiry-based language learning that embodies enquiry and discovery in two senses: students’ research and learning about the content for oneself, and moving away from spoon-feeding views of academic language education to experience language in real social contexts. On this basis, we argue for stepping beyond predetermined content-based approaches to university language teaching and call for living the language that is being learned, which involves enquiring, experiencing, discovering, challenging, and owning it. 相似文献
5.
Hossein Karami 《Educational Research and Evaluation》2013,19(2-3):158-169
The search for fairness in language testing is distinct from other areas of educational measurement as the object of measurement, that is, language, is part of the identity of the test takers. So, a host of issues enter the scene when one starts to reflect on how to assess people's language abilities. As the quest for fairness in language testing is still in its infancy, even the need for such a research has been controversial, with some (e.g., Davies, 2010) arguing that such research is entirely in vain. This paper will provide an overview of some of the issues involved. Special attention will be given to critical language testing (CLT) as it has had a large impact on language testing research. It will be argued that although CLT has been very effective in revealing the ideological and value implications of the constructs of focus in language testing, extremism in this direction is not justified. 相似文献
6.
Social informatics research offers insights into the relationship between information technologies and social contexts. However, the material roles of information technologies, and their interplay with the agentic work of social actors, have not been addressed. Drawing on a field study of 37 mobile knowledge workers, we examine the dual material roles (enabling and constraining) played by information technologies in their work practices. We also investigate how these workers exert agency by fashioning multiple information technologies into a functioning digital assemblage. Although information technologies provide consequential affordances that enable mobilization of work across spaces and times, they simultaneously present design-driven, local, organizational, and temporal technological constraints that require mobile knowledge workers to engage in “configuration work” to make information technologies function effectively. Building on a sociomaterial perspective, we further discuss the interplay of information technologies and work practices enacted by mobile knowledge workers, in which both human and technological agency are materialized. 相似文献
7.
Pejhman Ghassemi Mohammad Hossein Miranbaygi 《Journal of Zhejiang University. Science. B》2009,10(8):602-608
Measurement of optical properties of skin is an expanding and growing field of research. Recent studies have shown that the
biological tissue, especially skin, changes the polarization state of the incident light. Using this property will enable
the study of abnormalities and diseases that alter not only the light intensity but also its polarization state. In this paper
we report an experimental study for measuring changes of polarization state of the light scattered from a phantom similar
to a sample model of scattering skin. Using the notation of Stokes vector for the polarized light and Mueller matrix for the
sample with its polarization properties, we have shown that some elements of the matrix were particularly sensitive to the
changes of the polarization-altering physical properties of the scatterers within the phantom.
相似文献
8.
Hosein Ajamzibad Farahnaz Mohammadi Shahboulaghi Hassan Rafiey Maryam Rassouli 《Educational gerontology》2013,39(12):786-795
ABSTRACTSpiritual health is one of the most important aspects of the elders’ health. The aim of this study was to develop and evaluate psychometric properties of a scale for evaluating spiritual health of older adults in Iran. This is a mixed research, consisted of two phases. First, the perception of elder people regarding the spiritual health was explored, using directed content analysis, and the scale items generated based on the results. Second, the content, face and construct validity were determined. Exploratory factor analysis was used for the construct validity. To determine the reliability, Cronbach’s alpha and test-retest were used. Preliminary designed questionnaire included 94 items, which were reduced to 38 following the content and face validity processes. Exploratory factor analysis demonstrated that 20 items loaded on five factors determined about 66% of variance. The total internal consistency of the scale was 0.89. Results of test-retest indicated a Pearson correlation coefficient of 0.85 while intra-class correlation coefficient of scale was 0.92. The ESHS is a short, user-friendly valid and reliable tool which can be used for assessing the spiritual health of older adults. 相似文献
9.
Hossein Saiedian 《Computer Science Education》2013,23(1):3-5
A new programming course to prepare novices for the traditional Computer Science 1 course (CS1) is proposed. The course uses 3D interactive animation in a novice-friendly environment to introduce object-oriented programming concepts and help students develop problem-solving skills. Pedagogical issues are presented that involve the use of visualization and graphics concepts, the notion of state, and programming language concerns. A study of practice and experimentation with this course is underway. The evaluation plan for this study is briefly described and some early results are summarized, along with observed benefits and concerns. 相似文献
10.
Dehghani MH Mahvi AH Jahed GR Sheikhi R 《Journal of Zhejiang University. Science. B》2007,8(7):493-497
The objective of the investigation was to study the application of ultrasound reactor technology （USRT） as a disinfectant for reduction of fungi from sewage effluent. Fungi are carbon heterotrophs that require preformed organic compounds as carbon sources. USRT is an attractive means to improve water quality because of the system simplicity and no production of toxic by-products. An ultrasound reactor produces strong cavitation in aqueous solution causing shock waves and reactive free radicals by the violent collapse of the cavitation bubble. These effects should contribute to the physical disruption of microbial structures and inactivation of organisms. There was significant reduction in fungal growth, with decreased fungal growth with increasing USRT. In this study, ultrasound irradiation at a frequency of 42 kHz was used to expose suspensions of fungi to evaluate the disinfection efficacy of the ultrasound reactor. Also, this study showed that in this system more than 99% reduction of sewage fungi was achieved after 60 min. 相似文献