A new footwear technology to promote non-heelstrike landing and enhance running performance: Fact or fad?     

Janet H. Zhang  Aislinn J. C. McPhail  Winko W. An  Waqar M. Naqvi  Daniel L. H. Chan  Ivan P. H. Au 《Journal of sports sciences》2017,35(15):1533-1537

This study sought to compare the kinetics and kinematics data in a group of habitual shod runners when running in traditional running shoes and newly designed minimalist shoes with lug platform. This novel footwear design claims to simulate barefoot running and reduce energy loss during impact. We compared footstrike angle (FSA), vertical average (VALR) and instantaneous (VILR) loading rates, energy loss and initial vertical stiffness between two shoe conditions. Runners demonstrated a decreased FSA while running in minimalist shoes with lug platform than traditional shoes (P = 0.003; Cohen’s d = 0.918). However, we did not observe a landing pattern transition. VALR and VILR between two footwear conditions showed no significant difference (P = 0.191–0.258; Cohen’s d = 0.304–0.460). Initial vertical stiffness (P = 0.032; Cohen’s d = 0.671) and energy loss (P = 0.044; Cohen’s d = 0.578) were greater when running in minimalist shoes with lug platform. The results show that minimalist shoes with lug platform reduce the FSA but may not lead to a landing pattern switch or lower vertical loading rates. Interestingly, the new shoe design leads to a greater energy loss than traditional running shoes, which could be explained by a higher initial vertical stiffness.  相似文献   

Results of an assessment to identify potential barriers to sustainable agriculture on American Indian reservations in the Western United States     

Loretta Singletary  Staci Emm  Fara Ann Brummer  George C. Hill  Steve Lewis  Vicki Hebb 《The Journal of Agricultural Education and Extension》2016,22(4):375-387

Purpose: This paper reports the results of survey research conducted with tribal producers between 2011 and 2012 on 19 of the largest American Indian reservations in Idaho, Nevada, North Dakota, Oregon, South Dakota, and Washington. The purpose of the research was to identify potential barriers to sustainable agriculture on reservation lands. This article reports the results of this research in an effort to promote Extension professionals' understanding of these barriers, which may help to improve outreach programs on American Indian reservations. Understanding the obstacles to sustaining agriculture that American Indian tribes face may inform international agricultural outreach efforts to increase food security targeting indigenous and tribal peoples worldwide.

Design/Methodology/Approach: American Indian agricultural producers comprised the study group. Study objectives included: (1) identify agricultural and natural resource issues of greatest concern to a self-selected sample of tribal agricultural producers on reservation lands; (2) evaluate access to Extension and other US Department of Agriculture outreach and assistance programs; and (3) evaluate the quality of these programs in terms of their relativity to tribal needs.

Findings: Study results indicate that tribal agricultural producers surveyed ranked 29 of 39 agricultural and natural resource issues as a concern. Similarly, they rated access to and quality of outreach programs as fair. Further, tribal producers operating on reservation trust land rated issues more severely than did tribal producers operating on fee simple lands.

Practical Implications: Results of this research will help Extension and other outreach professionals to understand the barriers indigenous and tribal peoples face in sustaining agricultural operations, particularly tribal groups living on federally reserved trust lands, such as American Indians. An increased understanding can inform agricultural policy-makers and outreach professionals in improving programs designed to increase agricultural sustainability, improve food security, enhance economic well-being and improve quality of life of indigenous and tribal peoples worldwide.

Originality/Value: This research provides important information to agricultural policy-makers and Extension professionals striving to sustain agricultural productivity and enhance food security with indigenous and tribal peoples.  相似文献   

The information requirements and information-seeking behaviours of health and social care professionals providing care to children with health care needs: a pilot study     

Jackson R  Baird W  Davis-Reynolds L  Smith C  Blackburn S  Allsebrook J 《Health information and libraries journal》2007,24(2):95-102

OBJECTIVES: The objectives of this work were to identify the sources of information currently received, information-seeking behaviours, information requirements and preferences for future information provision amongst health and social care professionals providing care to children with health care needs. METHODS: Data were collected using a cross-sectional postal questionnaire survey. RESULTS: A wide range of information resources was reported as being available to professionals. However, a large proportion of respondents found it necessary to perform additional searches for information, suggesting that current resources were not satisfying their needs. The majority of professionals reported a preference for electronic formats, whilst a smaller proportion preferred hard copy materials. Participants promoted the use of informal networks as a means of support and exchange of information. CONCLUSION: Supplementing the information that is provided in electronic and hard copy formats, by enhancing informal networks, may be the most effective way of meeting the information needs of this group of professionals.  相似文献   

Rapid visual processing by college students in reading irregular words and phonologically regular pseudowords presented singly and in contiguity     

Au A  Lovegrove W 《Annals of dyslexia》2006,56(2):335-360

Using normal adult readers, this study examined the relative involvement of magnocellular and parvocellular processes in reading English phonologically regular pseudowords and irregular words presented in isolation and in contiguity from left to right. The data showed that a low temporal frequency visual measure that implied more parvocellular involvement was active in processing irregular words presented singly and pseudowords presented in contiguity. However, the results failed to show the involvement of the magnocellular pathway (as implicated by low spatial and/or high temporal frequency visual measures) in reading words presented in contiguity from left to right. The discrepancy was discussed in terms of the sensitivity of the tasks used in testing the two pathways.  相似文献   

Using a structural equation modelling approach (SEM) to examine leadership of heads of subject departments (HODs) as perceived by principals and vice-principals,heads of subject departments and teachers within ‘school based management’ (SBM) secondary schools: some evidence from Hong Kong     

Loretta Au  Nigel Wright  Christopher Botton 《School Leadership & Management》2013,33(4):481-498

This article reports the use of a Structural Equation Modelling (SEM) technique as a means of exploring our understanding of the leadership of Heads of Subject Departments within School Based Management (SBM) secondary schools in Hong Kong. Arguments made by Gronn (1999, 2000), Spillane et al. (2001) suggest that studies of leadership need to focus more on a distributed model rather than seeing leadership as residing solely in the titular head of the organisation. Other recent studies (Busher & Harris 1999; Harris 2001) have examined the role of middle managers. This article explores SEM as a means of offering important measurement and insight in this complex area. The structural models generated and presented support a new integrative model of the leadership activities and behaviours of the HODs within SBM secondary schools in Hong Kong. Some initial findings (Au 2003) are reported based on a return rate of 83% from a dataset of 2739 teachers, HODs, school principals and vice- principals taken from a sample of 110 government and non-government SBM secondary schools in Hong Kong.  相似文献   

Homophobia in medical students of the University of Hong Kong     

R. W. M. Kan  K. P. Au  W. K. Chan  L. W. M. Cheung  C. Y. Y. Lam  H. H. W. Liu 《Sex education》2013,13(1):65-80

Homosexuality is now accepted as a normal variant of human sexuality, but homophobia among healthcare professionals is well documented. Establishment of trustful doctor–patient relationships is impossible in the presence of homophobia. We were interested to examine the extent of homophobia among medical students, the future doctors. This article aims to study attitudes of medical students of the University of Hong Kong towards homosexuality and to identify significant factors affecting their attitudes. A cross‐sectional study was performed on students of the University of Hong Kong. Attitudes towards homosexuality were compared between medical and non‐medical students. More than 25% of the medical students agreed with the statement ‘homosexuality is a psychological disorder that requires therapy’. More than 15% would avoid any physical contact with homosexuals to minimise the chance of contracting diseases, especially AIDS. Comparison between the medical students and non‐medical students showed that the attitudes of the medical students were significantly more homophobic. Factors explaining the difference included the importance of religion in the formation of moral values, gender, experience of working closely with homosexual friends, sexual orientation, experience of the heterosexual sexual act, acquaintance of homosexual friends, and experience of homosexual love relationships. In conclusion, there appeared to be a certain level of homophobia among the medical students. This could possibly be explained by their lack of experience of working closely with homosexual friends. Relevant curriculum modification and development are urgently needed, to provide ongoing opportunities for students to realise their own values that could unconsciously affect their clinical judgements.  相似文献   

Computer graphics lunch time option and the at risk student     

Loretta G. Kepler 《TechTrends》1990,35(4):24-27

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Exploring How Different Features of Animations of Sodium Chloride Dissolution Affect Students’ Explanations     

Resa M. Kelly  Loretta L. Jones 《Journal of Science Education and Technology》2007,16(5):413-429

Animations of molecular structure and dynamics are often used to help students understand the abstract ideas of chemistry. This qualitative study investigated how the features of two different styles of molecular-level animation affected students’ explanations of how sodium chloride dissolves in water. In small group sessions 18 college-level general chemistry students dissolved table salt in water, after which they individually viewed two animations of salt dissolution. Before and after viewing each animation the participants provided pictorial, written, and oral explanations of the process at the macroscopic and molecular levels. The students then discussed the animations as a group. An analysis of the data showed that students incorporated some of the microscopic structural and functional features from the animations into their explanations. However, oral explanations revealed that in many cases, participants who drew or wrote correct explanations did not comprehend their meanings. Students’ drawings may have reflected only what they had seen, rather than a cohesive understanding. Students’ explanations given after viewing the animations improved, but some prior misconceptions were retained and in some cases, new misconceptions appeared. Students reported that they found the animations useful in learning; however, they sometimes missed essential features when they watched the animation alone.  相似文献   

Reviews     

Hugh Clapin  Katherine Neal  John Wennerbom  Barbara Nunn  Deborah Dysart  Andy Pickering  Lisa Featherstone  Hiram Caton  Dale Jacquette  Laura Ruetsche  William A. Turner  Cornelia Lüdecke  Birgit Lohmann  James Ladyman  Jonathan Coopersmith  David Oldroyd  Dennis Dean  Michael Ruse  Nicolas Rasmussen  William N. Kaghan  Martin Bridgstock  Geoffrey Cocks  Stephanie H. Kenen  Ivan Crozier  Sokhieng Au  Desmond Barrett  Mark Cortiula  Ian D. Lawrie 《Metascience》2001,10(1):50-149

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The school counsellor's role in globalizing the classroom     

Loretta J. Bradley  Elaine Jarchow 《International journal for the advancement of counseling》1998,20(3):243-251

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