儿童青少年运动员的营养需要     

Oded Bar-Or　Linda Houtkooper　Susan Barr　Anita Rivera-Brown　Michael Bergeron　Tom Rowland　Ruth Carey　Suzanne Steen　Priscilla Clarkson 《体育科学》2001,21(5):89-93

1. 儿童青少年运动员应该食用多样化的食物，其中，蛋白质应占膳食总能量的12％-15％，碳水化合物至少占55％，而脂肪至多占30％。日常生活中如何吃才能满足这些要求呢？膳食指南宝塔提供了一条可行之道。2.有些营养素对热爱运动的儿童青少年运动员非常重要，要保证摄入充足，这些营养素是碳水化合物（包括纤维素）、维生素B6、维生素D、铁、钙、镁、锌、铬。科学合理、包罗各类食物的平衡膳食，对青少年运动员最大程度地全面摄取各种营养素，满足生长发育和运动训练的需要，是非常必要的。3.鼓励儿童青少年运动员在运动训练前、中、后进行补液，以避免脱水的发生。4.如果膳食合理平衡，就没必要额外补充营养品。  相似文献   

Towards the Inclusion of Students with Disabilities: Accessibility in Language Courses     

Muriel Gallego  Carey Busch 《Innovative Higher Education》2015,40(5):387-398

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Improbable or impossible? How children reason about the possibility of extraordinary events   总被引：1，自引：1，他引：0  

Shtulman A  Carey S 《Child development》2007,78(3):1015-1032

The present study investigated the development of possibility-judgment strategies between the ages of 4 and 8. In Experiment 1, 48 children and 16 adults were asked whether a variety of extraordinary events could or could not occur in real life. Although children of all ages denied the possibility of events that adults also judged impossible, children frequently denied the possibility of events that adults judged improbable but not impossible. Three additional experiments varied the manner in which possibility judgments were elicited and confirmed the robustness of preschoolers' tendency to judge improbable events impossible. Overall, it is argued that children initially mistake their inability to imagine circumstances that would allow an event to occur for evidence that no such circumstances exist.  相似文献   

GaIN (Georgia Interactive Network for Medical Information) study on health professionals' search requests and continuing education needs     

LaBeause J  Van de Water N  Carey P  Fielder M  Sorrow B  Woolbright C 《Medical reference services quarterly》1999,18(2):81-89

Health sciences librarians are being called upon to be more proactive in their institutions' continuing education efforts. In an effort to identify whether search requests indicated CE needs, a study was conducted by a group of members of GaIN (Georgia Interactive Network for Medical Information). MEDLINE requests from health care professionals for subject specific clinical topics were collected during a six-month period via a standard search request form created for the study. Copies of all completed requests were collected and broad ICD-9 codes assigned to the search topics. Institutional reports were generated for each participating library to share with hospital CE coordinators. They were also compiled for the group as a whole, and reflected the "hottest" topics requested during the study period for physicians and for non-physicians (nurses, allied health, administrators). A survey to hospital librarians and CE educators showed some value in the reports, but greater potential for further collaboration between librarians and CE coordinators.  相似文献   

Braided composite materials for the production of lightweight, high rigidity golf shafts   总被引：1，自引：1，他引：0  

Douglas Steven S. Swanek  Jason Carey 《Sports Engineering》2007,10(4):195-208

Braiding is not currently used in the production of golf shafts. The objective of this work was to develop, through a modelling process consisting of altering lamina sequence, a golf shaft, using braided laminas, which would have mass, stiffness and torque comparable to commercially available composite and steel shafts. A 2D conical braided composite model was previously developed and validated to predict elastic constants of braided closed meshed structures. Energy methods were used to calculate the stiffness and torque of shafts using prescribed industry approaches. Shaft mass was calculated based on geometry and density of constitutent materials. Modelled shafts had both braided and unidirectional layers and compared favourably with or were better than commercially available composite and steel shafts in terms of deflection force and twist angle; they had the same weight as composite shafts but were much lighter than steel shafts. If these findings are verified, braided composites would be a viable and effective approach to the design of future golf shafts.  相似文献   

The careers of fine artists and the embedded creative     

Charlotte Carey 《Journal of Education & Work》2015,28(4):407-421

While there is a growing body of scholarship on the creative industries and on the career trajectories of graduates from creative industries programmes, there has to date only been a limited amount of research that examines in detail, the careers of fine arts graduates. Fine art is arguably the least ‘vocational’ of creative disciplines, in that there are relatively few employers that seek to employ fine artists as fine artists. If fine arts graduates are not employed in their chosen field – that is, in the ‘Creative Trident’ terminology, in a core creative occupation – how do their careers parallel or differ from those of other creative graduates? Do they find employment as ‘embedded creatives’, using or applying their experience and practice in sectors beyond the core creative industries, or as ‘support workers’, enabling and facilitating the creative work of others? Do they experience portfolio careers? And how do their artistic training and attitudes to creativity affect their working relationships and experiences? This article draws on rich qualitative data about the experiences of a small group of graduates (including the author) who all graduated from the same course at the same institution in the UK in 1994, to provide some insights into the career paths and trajectories of a sample of fine arts graduates.  相似文献   

Three-dimensional kinematic analysis of the golf swing using instantaneous screw axis theory,Part 2: golf swing kinematic sequence     

Alessandro Vena  Dave Budney  Tom Forest  Jason P. Carey 《Sports Engineering》2011,13(3):125-133

A number of recent studies have measured the extent and timing of segment rotation during the golf swing. A promising technique, instantaneous screw axis (ISA) theory, could provide a better expression of segment rotation. In Part 1 of this two-part study, the objectives are to identify the ISA of the pelvis, shoulders and left arm during the downswing, compute segment angular velocity relative to that segment’s ISA and verify that ISA theory is a valid tool to analyse segment rotation during the golf swing. Results indicate that for all subjects, at least 71% of marker velocity is a result of rotation about their respective ISA, when averaging results over the duration of the downswing, confirming that motion is primarily rotational. Furthermore, ISA position and orientation of each segment approaches, on average, the expected gross axis of rotation, confirming that motion about the ISA is representative of joint motion.  相似文献   

Capabilities in, capabilities out: overcoming digital divides by promoting corporate citizenship and fair ICT     

Thorsten Busch 《Ethics and Information Technology》2011,13(4):339-353

This conceptual article discusses strategies of corporations in the information and communication technologies (ICT) sector and their role in the conflict over access to knowledge in the digital environment. Its main hypothesis is that ICT corporations are very capable actors when it comes to bridging digital divides in both developed and developing countries??maybe even the most capable actors. Therefore, it is argued that ICT corporations could use their capabilities to help citizens gain sustainable access to knowledge in order to enable them to lead self-sufficient lives. In a nutshell, capabilities are presented as both the input (capabilities of ICT corporations) as well as the output (capability building for empowering citizens) of corporate strategy-making focusing on fair ICT. Corporate citizenship is put forth as the theoretical concept bridging corporate strategies and access to knowledge: If ICT corporations act in accordance with their self-understanding of being ??good corporate citizens??, they could be crucial partners in lessening digital divides and helping citizens gain access to knowledge. From the perspective of ??integrative economic ethics?? (Ulrich 2008), it is argued that ICT corporations have good reason to actively empower citizens in both developed and developing countries by pursuing ??inclusive?? strategies in many fields, such as open-source software development. That way, ICT corporations could enable, support and provide citizens with capabilities enabling them to help themselves. In order to make inclusive business models work, the rules and regulations companies find themselves in today must enable them to act responsibly without getting penalized by more ruthless competitors. This article explores several cases from the ICT field to illustrate the interplay between a responsible business model and the rules and regulations of the industry. From a capabilities perspective, the most desirable mix of corporate strategies and industry regulation is one that results in the highest level of generativity (Zittrain 2008). Thus, ICT should not be closed systems only driven by the company behind them. Instead, they need to be open for the highest possible level of third-party innovation.  相似文献   

Bandpass sorting of heterogeneous cells using a single surface acoustic wave transducer pair     

Gergely Simon  Caroline Busch  Marco A. B. Andrade  Julien Reboud  Jonathan M. Cooper  Marc P. Y. Desmulliez  Mathis O. Riehle  Anne L. Bernassau 《Biomicrofluidics》2021,15(1)

Separation and sorting of biological entities (viruses, bacteria, and cells) is a critical step in any microfluidic lab-on-a-chip device. Acoustofluidics platforms have demonstrated their ability to use physical characteristics of cells to perform label-free separation. Bandpass-type sorting methods of medium-sized entities from a mixture have been presented using acoustic techniques; however, they require multiple transducers, lack support for various target populations, can be sensitive to flow variations, or have not been verified for continuous flow sorting of biological cells. To our knowledge, this paper presents the first acoustic bandpass method that overcomes all these limitations and presents an inherently reconfigurable technique with a single transducer pair for stable continuous flow sorting of blood cells. The sorting method is first demonstrated for polystyrene particles of sizes 6, 10, and 14.5 μm in diameter with measured purity and efficiency coefficients above 75 ± 6% and 85 ± 9%, respectively. The sorting strategy was further validated in the separation of red blood cells from white blood cells and 1 μm polystyrene particles with 78 ± 8% efficiency and 74 ± 6% purity, respectively, at a flow rate of at least 1 μl/min, enabling to process finger prick blood samples within minutes.  相似文献   

Socioculturally situated narratives as co-authors of student teachers’ learning from experience     

Carey Philpott 《Teaching Education》2014,25(4):391-409

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