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1.
Paul S. Bradley David T. Archer Bob Hogg Gabor Schuth Michael Bush Chris Carling 《Journal of sports sciences》2016,34(10):980-987
This study investigated the evolution of physical and technical performances in the English Premier League (EPL), with special reference to league ranking. Match performance observations (n = 14,700) were collected using a multiple-camera computerised tracking system across seven consecutive EPL seasons (2006–07 to 2012–13). Final league rankings were classified into Tiers: (A) 1st–4th ranking (n = 2519), (B) 5th–8th ranking (n = 2965), (C) 9th–14th ranking (n = 4448) and (D) 15th–20th ranking (n = 4768). Teams in Tier B demonstrated moderate increases in high-intensity running distance while in ball possession from the 2006–07 to 2012–13 season (P < 0.001; effect size [ES]: 0.68), with Tiers A, C and D producing less pronounced increases across the same period (P < 0.005; ES: 0.26, 0.41 and 0.33, respectively). Large increases in sprint distance were observed from the 2006–07 to 2012–13 season for Tier B (P < 0.001; ES: 1.21), while only moderate increases were evident for Tiers A, C and D (P < 0.001; ES: 0.75, 0.97 and 0.84, respectively). Tier B demonstrated large increases in the number of passes performed and received in 2012–13 compared to 2006–07 (P < 0.001; ES: 1.32–1.53) with small-to-moderate increases in Tier A (P < 0.001; ES: 0.30–0.38), Tier C (P < 0.001; ES: 0.46–0.54) and Tier D (P < 0.001; ES: 0.69–0.87). The demarcation line between 4th (bottom of Tier A) and 5th ranking (top of Tier B) in the 2006–07 season was 8 points, but this decreased to just a single point in the 2012–13 season. The data demonstrate that physical and technical performances have evolved more in Tier B than any other Tier in the EPL and could indicate a narrowing of the performance gap between the top two Tiers. 相似文献
2.
Piorkowski BA Lees A Barton GJ 《Sports biomechanics / International Society of Biomechanics in Sports》2011,10(1):1-11
The aim of this study was to determine the influence of punch type (Jab, Cross, Lead Hook and Reverse Hook) and punch modality (Single maximal, 'In-synch' and 'Out of synch' combination) on punch speed and delivery time. Ten competition-standard volunteers performed punches with markers placed on their anatomical landmarks for 3D motion capture with an eight-camera optoelectronic system. Speed and duration between key moments were computed. There were significant differences in contact speed between punch types (F(2,18,84.87) = 105.76, p = 0.001) with Lead and Reverse Hooks developing greater speed than Jab and Cross. There were significant differences in contact speed between punch modalities (F(2,64,102.87) = 23.52, p = 0.001) with the Single maximal (M+/- SD: 9.26 +/- 2.09 m/s) higher than 'Out of synch' (7.49 +/- 2.32 m/s), 'In-synch' left (8.01 +/- 2.35 m/s) or right lead (7.97 +/- 2.53 m/s). Delivery times were significantly lower for Jab and Cross than Hook. Times were significantly lower 'In-synch' than a Single maximal or 'Out of synch' combination mode. It is concluded that a defender may have more evasion-time than previously reported. This research could be of use to performers and coaches when considering training preparations. 相似文献
3.
Abstract The influence of the Cardan rotation sequence on the orientation angles for joints is well known but has not been explored for dynamic sports movements. The purpose of this study is to establish the influence of Cardan rotation sequence on the orientation angles of the ankle, knee, and hip of the support leg and pelvis during dynamic sports movements, typified by a maximal instep kick in soccer. We found that: (a) the X (flexion/extension) axis rotations provide data that are robust for any sequence used other than the YXZ sequence, although the Y (abduction/adduction) and Z (internal/external) axes rotations are variable in both shape and offset magnitude; (b) the preferred rotation sequence is either XYZ or XZY for dynamic sports movements, although for the soccer kick the XYZ rotation sequence has been widely used and so this is recommended as a standard; and (c) most uncertainties exist in the Y and Z axes and are most apparent at the beginning of the movement. Where uncertainty exists in identifying Y and Z axes orientations, the integrated angular velocity may be considered as an alternative to determine the relative changes in segment orientation. 相似文献
4.
Georgina Gabor 《Journal of Research in Special Educational Needs》2010,10(1):31-41
In the diversity of an international school, many children for whom dyslexia is a barrier to literacy skill development may not have formally been identified as dyslexic; however, it does not mean that their needs do not require to be met. This paper considers the elements necessary to support the learners with dyslexia. Teaching Reading Through Spelling, which is a synthetic phonics-based APSL (alphabetic, phonic, syllabic, linguistic) programme, was used, 3 × 45 minutes a week, in an international school setting. The students (N = 12) made 2.0 years spelling, and 2.8 years reading improvement in one year. In addition to selecting an appropriate teaching programme, successful additional elements were found to be careful planning for both short and long term, effective communication and involvement of all participants. 相似文献
5.
Xue-Yan Wang Christian Fillafer Clara Pichl Stephanie Deinhammer Renate Hofer-Warbinek Michael Wirth Franz Gabor 《Biomicrofluidics》2013,7(4)
Microfluidic devices have emerged as important tools for experimental physiology. They allow to study the effects of hydrodynamic flow on physiological and pathophysiological processes, e.g., in the circulatory system of the body. Such dynamic in vitro test systems are essential in order to address fundamental problems in drug delivery and targeted imaging, such as the binding of particles to cells under flow. In the present work an acoustically driven microfluidic platform is presented in which four miniature flow channels can be operated in parallel at distinct flow velocities with only slight inter-experimental variations. The device can accommodate various channel architectures and is fully compatible with cell culture as well as microscopy. Moreover, the flow channels can be readily separated from the surface acoustic wave pumps and subsequently channel-associated luminescence, absorbance, and/or fluorescence can be determined with a standard microplate reader. In order to create artificial blood vessels, different coatings were evaluated for the cultivation of endothelial cells in the microchannels. It was found that 0.01% fibronectin is the most suitable coating for growth of endothelial monolayers. Finally, the microfluidic system was used to study the binding of 1 μm polystyrene microspheres to three different types of endothelial cell monolayers (HUVEC, HUVECtert, HMEC-1) at different average shear rates. It demonstrated that average shear rates between 0.5 s−1 and 2.25 s−1 exert no significant effect on cytoadhesion of particles to all three types of endothelial monolayers. In conclusion, the multichannel microfluidic platform is a promising device to study the impact of hydrodynamic forces on cell physiology and binding of drug carriers to endothelium. 相似文献
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7.
Hameed A. Elnaggar Raymond J. Krizek Gabor M. Karadi 《Journal of The Franklin Institute》1973,296(5):323-337
The effect of non-Darcian flow on the consolidation behavior of clay soils is studied, and its role in the extrapolation of laboratory test results to field problems is evaluated. This is accomplished by postulating a reasonably general four-parameter velocity-gradient relationship which, by proper choice of parameters, is capable of characterizing much of the published experimental data; then, this relationship is combined with the standard assumptions of classical consolidation theory to develop a nonlinear parabolic partial differential equation, which is solved by use of a finite difference technique. The stability and convergence criteria for related linear and quasi-linear equations are empirically extended to the associated nonlinear equations, and a comparison is made between various explicit and implicit finite difference schemes, with the result that a sufficiently accurate and more economical numerical solution is obtained by use of an explicit scheme. Typical solutions for various specific cases confirm and offer an explanation for the well-known phenomenon wherein the time rate of consolidation is found to decrease as the load increment decreases; also, the thickness of the consolidating layer is shown to affect the dimensionless time rate of consolidation. These conditions indicate that laboratory consolidation test results can be applied to a field situation only if appropriate stress and thickness corrections are made. 相似文献
8.
The aim of the cross-sectional study was to reveal what coping strategies 8, 10- and 12-year-old Hungarian students (N?=?167) use in situations that are frustrating, either for themselves or their peers. The coping strategies in school situations were assessed by our own questionnaires. The instrument enables the investigation of the following behaviourally observable strategies: physical aggression, verbal aggression, resistance, venting/crying, avoidance, teacher-seeking, peer-seeking, following the norms and following teacher’s instructions. The coping strategies were assessed by teacher-report and self-report questionnaires developed especially for this purpose. The most important finding of this study is that the occurrence of overt aggression increases with age, which is supported by the results of both the self-report and the teacher-report questionnaires. Results obtained by the self-report and teacher-report instruments correlated significantly in all three cohorts (p?相似文献
9.
John A. Lent H.Edward English John Stapleton Tamas Szecsko Gabor Fodor Walter A. Mahle 《Communication Booknotes Quarterly》2013,44(7):83-85
John A. Lent's Asian Mass Communications: A Comprehensive Bibliography (Philadelphia: Temple University School of Communications and Theater, 1975---$44.00, paper with spiral binding) H.Edward English (ed.) Telecommunications for Canada: An Interface of Business and Government (Toronto: Methuen, 1973---price not known) Television Advertising Conditions in Europe Communication Policies in Ireland, by John Stapleton (1974, 73 pages, $3.95, paper) Communication Policies in Hungary, by Tamas Szecsko and Gabor Fodor (1974, 58 pages, $3.30, paper) Communication Policies in the Federal Republic of Germany, by Walter A. Mahle and Rolf Richter (1974, 86 pages, $4.95, paper) Communication Policies in Sweden, by Lars Furhoff, Lennart Jonsson, and Lennart Nilsson (1974, 76 pages, $4.65, paper) 相似文献
10.
Joel Engel Wes Smith SuzAnne Barabas Gabor Barabas James Robert Parish Vincent Terrace 《Communication Booknotes Quarterly》2013,44(5):115-116
ROD SERUNG: THE DREAMS AND NIGHTMARES OF LIFE INTHE TWILIGHT ZONE by Joel Engel (Chicago: Contemporary Books, 1990—$18.95, ISBN 0-8092-4538-8,368 pp.) THE PIED PIPERS OF ROCK 'n ROLL: RADIO DEEJAYS OF THE 50s AND 60s by Wes Smith (Marietta, GA: Longstreet Press, 1989—$16.95, ISBN 0-929264-69-X, 300 pp.) GUNSMOKE.A COMPLETE HISTORY by SuzAnne Barabas and Gabor Barabas (Jefferson, NC: McFarland & Co., 1990—$45.00, ISBN 0-89950-418-3, 832 pp.) is just that—a detailed narrative and then episode guide to both the radio (1952-61) THE COMPLETE ACTORS TELEVISIONCREDITS, 1948-1988, VOLUME I: ACTORS by James Robert Parish and Vincent Terrace (Metuchen, NJ: Scarecrow Press, 1989—$59.50, ISBN 0-8108-2204-0, 560 pp.) THE CHILDREN'S HOUR: RADIO PROGRAMS FOR CHILDREN, 1929-1956 by Marilyn Lawrence Boemer (Metuchen, NJ: Scarecrow Press, 1989—$25.00, ISBN 0-8108-2270-9, 230 pp.) I REMEMBER TELEVISION: A MEMOIR by Ira Skutch (Metuchen, NJ: Scarecrow Press, 1989—$29.50, ISBN 0-8108-2271-7, 273 pp.) LIVE TELEVISION: THE GOLDEN AGEOF1946-1958 IN NEW YORK by Frank Sturcken (McFarland & Co., P.O. Box 611, Jefferson, NC 28640—$29.95, ISBN 0-89950-523-6, 178 pp.) 相似文献