A Companion to Ostrogothic Italy     

Christopher Heath 《Al-Masaq: Islam & the Medieval Mediterranean》2018,30(2):237-239

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The art of face-saving and culture-changing: sculpting Chinese football’s past,present and future     

Christopher B. Stride  Layne Vandenberg 《Sport in Society》2019,22(5):803-828

Abstract

In this paper, we consider the football statues of China, whose football team has dramatically underperformed relative to its population size and economic power. Although China lacks a participative grassroots football culture and has struggled to establish a credible domestic league, recent government intervention and investment has seen football’s profile rise dramatically. China’s many football statues are largely atypical in comparison to the rest of the world, including their depiction of anonymous figures rather than national or local heroes, the incorporation of tackling scenes in their designs, and their location at training camps. Through four specific examples and reference to a global database, we illustrate how these statues reflect the tensions and difficulties inherent in China’s desire to integrate itself into global football, and achieve its stated goal of hosting and winning the FIFA World Cup, whilst simultaneously upholding national, cultural and political values such as the primacy of hard work and learning, and saving face in defeat.  相似文献   

Demand cycles and market segmentation in bicycle sharing     

James Christopher Westland  Jian Mou  Dafei Yin 《Information processing & management》2019,56(4):1592-1604

Consumers often display unique habitual behaviors, and knowledge of these behaviors is of great value in prediction of future demand. We investigated consumer behavior in bicycle sharing in Beijing, where demand prediction is critical for cost-effective rebalancing of bicycle locations (putting bikes where and when they will be rented) and supply (number of bicycles). We created baseline statistical demand models, borrowing methods from economics, signal processing and animal tracking to find consumption cycles of 7, 12, 24 h and 7-days. Lorenz curves of bicycle demand revealed significant stratification of consumer behavior and a long-tail of infrequent demand. To overcome the limits of traditional statistical models, we developed a deep-learning model to incorporate (1) weather and air quality, (2) time-series of demand, and (3) geographical location of demand. Customer segmentation was added at a later stage, to explore potential for improvement with customer demographics. Our final machine learning model with tuned hyperparameters yielded around 50% improvement in predictions over a discrete wavelet transform model, and 80–90% improvement in predictions over a naïve model the reflects some current industry practice. We assessed causality in the deep-learning model, finding that location and air quality had the strongest causal impact on demand. The extreme market segmentation of customer demand, and our relatively short time span of data combined to make it difficult to find sufficient data on all customers for a model fit based on segmentation. We reduced our model data to only the 10 most frequent to see whether such segmentation improves our model's predictive success. These results, though limited, suggest that customer behavior within market segments is more stable than across all customers, as was expected.  相似文献   

Risk and Adversity,Parenting Quality,and Children's Social-Emotional Adjustment in Families Experiencing Homelessness     

Madelyn H. Labella  Angela J. Narayan  Christopher M. McCormick  Christopher D. Desjardins  Ann S. Masten 《Child development》2019,90(1):227-244

A multimethod, multi-informant design was used to examine links among sociodemographic risk, family adversity, parenting quality, and child adjustment in families experiencing homelessness. Participants were 245 homeless parents (M_age = 31.0, 63.6% African American) and their 4- to 6-year-old children (48.6% male). Path analyses revealed unique associations by risk domain: Higher sociodemographic risk predicted more externalizing behavior and poorer teacher–child relationships, whereas higher family adversity predicted more internalizing behavior. Parenting quality was positively associated with peer acceptance and buffered effects of family adversity on internalizing symptoms, consistent with a protective effect. Parenting quality was associated with lower externalizing behavior only when sociodemographic risk was below the sample mean. Implications for research and practice are discussed.  相似文献   

Points from the SENCo-Forum     

Christopher Robertson 《British Journal of Special Education》2021,48(4):519-523

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Investigating the impact of a Freirean informed coach education programme     

Ed Cope  Christopher J. Cushion  Stephen Harvey  Mark Partington 《Physical Education & Sport Pedagogy》2021,26(1):65-78

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Handgrip strength and health outcomes: Umbrella review of systematic reviews with meta-analyses of observational studies     

Pinar Soysal  Christopher Hurst  Jacopo Demurtas  Joseph Firth  Reuben Howden  Lin Yang  Mark A. Tully  Ai Koyanagi  Petre Cristian Ilie  Guillermo F. Lpez-Snchez  Lukas Schwingshackl  Nicola Veronese  Lee Smith 《运动与健康科学(英文)》2021,10(3):290

PurposeThe aim of the present study was to assess both the credibility and strength of evidence arising from systematic reviews with meta-analyses of observational studies on handgrip strength and health outcomes.MethodsAn umbrella review of systematic reviews with meta-analyses of observational studies was conducted. We assessed meta-analyses of observational studies based on random-effect summary effect sizes and their p values, 95% prediction intervals, heterogeneity, small-study effects, and excess significance. We graded the evidence from convincing (Class I) to weak (Class IV).ResultsFrom 504 articles returned in a search of the literature, 8 systematic reviews were included in our review, with a total of 11 outcomes. Overall, nine of the 11 of the outcomes reported nominally significant summary results (p < 0.05), with 4 associations surviving the application of the more stringent p value (p < 10⁻⁶). No outcome presented convincing evidence. Three associations showed Class II evidence (i.e., highly suggestive): (1) higher handgrip values at baseline were associated with a minor reduction in mortality risk in the general population (n = 34 studies; sample size = 1,855,817; relative risk = 0.72, 95% confidence interval (95%CI): 0.67–0.78), (2) cardiovascular death risk in mixed populations (n = 15 studies; relative risk = 0.84, 95%CI: 0.78–0.91), and (3) incidence of disability (n = 7 studies; relative risk = 0.76, 95%CI: 0.66–0.87).ConclusionThe present results show that handgrip strength is a useful indicator for general health status and specifically for early all-cause and cardiovascular mortality, as well as disability. To further inform intervention strategies, future research is now required to fully understand mechanisms linking handgrip strength scores to these health outcomes.  相似文献   

Taking and teaching the test are not the same: a case study of first-year teachers’ experiences in high-stakes contexts     

Christopher P. Brown 《Teachers and Teaching》2013,19(8):1026-1044

Background: Policymakers’ use of high-stakes exams to improve students’ academic achievement affects teachers and their tenure in the field at all levels of schooling. Novice teachers now being inducted into the field have been educated almost exclusively in these high-stakes learning environments. Yet, how their familiarity with these contexts combined with their experiences in their own classrooms affect novices’ induction into the field of teaching has not been fully examined. Aim: This article presents findings from an investigation into the experiences of two first-year teachers who were educated and trained to be teachers in the same high-stakes education system in which they taught. It examines how these first-year teachers viewed policymakers’ reforms affecting their teaching and tenure in the field. Methods: This qualitative case study centers on the experiences of two first-year teachers working in the same high-stakes standards-based accountability teaching context in which they were educated – the case. This study provides insight into the issue of how novices’ familiarity with high-stakes reform combined with their experiences in their own classrooms impacts their conceptions of their teaching and their tenure in the field. Outcomes: The findings from this case study reveal how policymakers’ high-stakes reforms impacted the development of these novice teachers in significant ways. Not only did they have to learn how to teach as they taught, but they also had to ensure they were teaching all of their students to pass the high-stakes exams. Their varied experiences also demonstrate how these high-stakes exams can ‘test’ beginning teachers out of the classroom. Conclusions: These findings demonstrate that first-year teachers’ familiarity with policymakers’ high-stakes reforms is not enough to prepare them for the expectation that they immediately improve students’ academic achievement on high-stakes exams. Such findings not only challenge what it means to be a educator in these contexts, but they also shed light on how larger political and economic forces impact the teaching and tenure of novices. To support new teachers, teacher educators and mentors should rethink the education and induction processes while helping novices understand as well as prepare for the role context plays in their teaching and development as professionals.  相似文献   

Teachers' Perspectives on Effective School Leadership     

Alma Harris  Christopher Day  Mark Hadfield 《Teachers and Teaching》2013,19(1):67-77

This paper considers teachers' perspectives on effective school leadership. It draws upon the findings from a study of effective leadership conducted by a research team from the University of Nottingham [1]. This research study considered effective leadership from the perspectives of different stakeholders within the English schooling system. This provided an opportunity to analyse leadership in a holistic way and to consider leadership from a variety of different perspectives.  相似文献   

New Rules of Business for the Future of Community Colleges: Design of the Critical Issue Discussion Forums     

David S. Honeyman  James Berry  Christopher M. Mullin 《Community College Journal of Research & Practice》2013,37(6):449-452

At the Community College Futures Assembly, 3 critical discussion groups, each organized by an area of focus, conceptualized “New Rules” guiding the operation of community colleges. Utilizing 55 “New Rules for Business” provided by the keynote speaker Mark N. Vamos, each group identified 2–3 New Rules relevant to community college leadership in the future, suggested how they may be resolved, and then suggested areas for future research. Assembly participants were provided the opportunity to electronically vote as to which New Rules they felt were relevant to community college leaders in the coming years. Results were simultaneously displayed, allowing conference attendees to receive real-time feedback of the participant perceptions.  相似文献