http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
What Do Children Most Enjoy about Summer Soccer Camp? General and Age Group Perceptions
( Rhys Jones ) 한국스포츠정책과학원(구 한국스포츠개발원) 2002 International Journal of Applied Sports Sciences Vol.14 No.1
Children`s enjoyment in sport has been linked to both personal sport motivation and commitment. However, there is minimal research describing the influence of American soccer camp experience on participating children`s perceptions of enjoyment. Therefore, one hundred children attending soccer camp in Ohio provided written data on what they most enjoyed about camp. Results indicated the emergence of two child enjoyment domains; task experience followed by cognitive and affective experience. Within task experience and by rank ``soccer games and skills`` and ``camp related activities`` were the two major categories. Age group analysis(younger = sixty, 7 - 9s; older = forty, 10 -12s) indicated that the younger children gave more within group emphasis to these first and second ranked major categories than did the older children. In contrast, within the second domain, the older age group gave more within group emphasis to the major categories of ``social experience`` and ``learning focus`` than did the younger group. These results suggest the need for soccer camp organizers to carefully consider age group enjoyment perceptions. In particular, when developing meaningful educational camp experiences for children that are designed to positively influence their soccer motivation, mastery and commitment.
Determinants of Local SOE Board Size and Composition: Evidence From England
Rhys Andrews 서울대학교행정대학원 2022 The Korean Journal of Policy Studies Vol.37 No.1
Local State-Owned Enterprises (SOEs) play an increasingly important role in the delivery of key public services to citizens across the world. Because they operate at arms’ length from their parent organizations, arrangements for the effective governance of local SOEs are a major concern for public administration researchers and policy-makers alike. In many countries, local SOEs are supervised by boards of directors responsible for managing and monitoring service provision. Agency theory suggests that the size and composition of these boards is likely to be influenced by the ownership structure, organizational complexity, and growth opportunities. Using seemingly unrelated regressions to analyse the size and composition of local SOE boards in England, this study finds that large, minority public-owned, not-for-profit SOEs and those with more public sector partners have larger boards of directors, and that older, majority public-owned, and not-for-profit SOEs have more politicians on the board. The theoretical and practical implications of these findings for the governance, accountability and performance of local SOEs are discussed.
John Glasson,Rhys Hill,Michael Summerford,Dianne Olden,Fotula Papadopoulos,Stephen Young,Steven Giglio 대한진단검사의학회 2017 Annals of Laboratory Medicine Vol.37 No.6
Background: The application of image analysis technologies for the interpretation of microbiological cultures is evolving rapidly. The primary aim of this study was to establish whether the image analysis system named Automated Plate Assessment System (APAS; LBT Innovations Ltd., Australia) could be applied to screen urine cultures. A secondary aim was to evaluate differences between traditional plate reading (TPR) and the reading of cultures from images, or digital plate reading (DPR). Methods: A total of 9,224 urine samples submitted for culture to three clinical laboratories, two in Australia and one in the USA, were included in the study. Cultures were prepared on sheep blood and MacConkey agar plates and read by panels of three microbiologists. The plates were then presented to APAS for image capture and analysis, and the images and results were stored for later review. Results: Image analysis of cultures using APAS produced a diagnostic sensitivity and specificity of 99.0% and 84.5%, respectively. Colonies were detected by APAS on 99.0% of blood agar plates with growth and on 99.5% of MacConkey agar plates. DPR agreed with TPR for colony enumeration on 92.1% of the plates, with a sensitivity of 90.8% and specificity of 92.8% for case designation. However, several differences in the classification of colony morphologies using DPR were identified. Conclusions: APAS was shown to be a reliable screening system for urine cultures. The study also showed acceptable concordance between DPR and TPR for colony detection, enumeration, and case designation.
Michael J. Simmonds,Rhys Christy,Sonya M. Marshall-Gradisnik,Herbert J. Meiselman,Oguz K. Baskurt 한국유변학회 2011 Korea-Australia rheology journal Vol.23 No.4
The extent of red blood cell (RBC) aggregation has widely been accepted as a reliable indicator of inflammatory processes. The ability to measure RBC aggregation indexes in capillary blood samples may simplify the application of the test and may bring advantages in its clinical usage as well as application in field studies. This study compared RBC aggregation indexes measured in venous and capillary blood samples using a newly developed capillary tube aggregometer. Although strong correlations between aggregation indexes measured in capillary and venous samples were detected, the indexes measured in venous samples were higher compared to capillary samples, thus indicating a bias. The possible reason for this bias is proposed to be related to the difference in oxygen saturation of venous and capillary samples and therefore altered the light absorption spectrums. Our results indicate that capillary blood samples can be used to estimate RBC aggregation in venous blood samples, however the bias should be taken into account.
Simmonds, Michael J.,Christy, Rhys,Marshall-Gradisnik, Sonya M.,Meiselman, Herbert J.,Baskurt, Oguz K. 한국유변학회 2011 Korea-Australia rheology journal Vol.23 No.4
The extent of red blood cell (RBC) aggregation has widely been accepted as a reliable indicator of inflammatory processes. The ability to measure RBC aggregation indexes in capillary blood samples may simplify the application of the test and may bring advantages in its clinical usage as well as application in field studies. This study compared RBC aggregation indexes measured in venous and capillary blood samples using a newly developed capillary tube aggregometer. Although strong correlations between aggregation indexes measured in capillary and venous samples were detected, the indexes measured in venous samples were higher compared to capillary samples, thus indicating a bias. The possible reason for this bias is proposed to be related to the difference in oxygen saturation of venous and capillary samples and therefore altered the light absorption spectrums. Our results indicate that capillary blood samples can be used to estimate RBC aggregation in venous blood samples, however the bias should be taken into account.
Recent Asian origin of chytrid fungi causing global amphibian declines
O’Hanlon, Simon J.,Rieux, Adrien,Farrer, Rhys A.,Rosa, Goncalo M.,Waldman, Bruce,Bataille, Arnaud,Kosch, Tiffany A.,Murray, Kris A.,Brankovics, Balá,zs,Fumagalli, Matteo,Martin, Michael D.,Wales American Association for the Advancement of Scienc 2018 Science Vol.360 No.6389
<P>Globalized infectious diseases are causing species declines worldwide, but their source often remains elusive. We used whole-genome sequencing to solve the spatiotemporal origins of themost devastating panzootic to date, caused by the fungus Batrachochytrium dendrobatidis, a proximate driver of global amphibian declines. We traced the source of B. dendrobatidis to the Korean peninsula, where one lineage, BdASIA-1, exhibits the genetic hallmarks of an ancestral population that seeded the panzootic. We date the emergence of this pathogen to the early 20th century, coinciding with the global expansion of commercial trade in amphibians, and we show that intercontinental transmission is ongoing. Our findings point to East Asia as a geographic hotspot for B. dendrobatidis biodiversity and the original source of these lineages that now parasitize amphibians worldwide.</P>
Cementitious Porous Material Applied to Precision Aerostatics Bearings
Leandro Jos da Silva,Tulio Hallak Panzera,Luciano Machado Gomes Viera,Christopher Rhys Bowen,Jaime Gilberto Duduch,Juan Carlos Campos Rubio 한국정밀공학회 2018 International Journal of Precision Engineering and Vol.19 No.2
The use of porous materials as restrictor in aerostatic bearings provides many advantages over conventional restrictors, such as small variation of temperature, high damping, high operational speeds, limited wear and capacity to support radial, axial, and combined loads, being considered important features for precision machines and instruments. This work evaluates the load carrying capacity for different air gaps and pressures of thrust porous bearing made with cementitious composites. The cementitious composites consisted of Portland cement and monomodal silica particles (44 μm) were fabricated via uniaxial cold-pressing (10 MPa). The load capacity was determined for different air pressures, such as 3, 4, 5 and 6 bar. The air gap was measured using pneumatic transducers. A pneumatic instability was observed when the air pressure level increased from 3 to 6 bar. A similar loading capacity, for bearing gaps between 7 and 30 μm, was achieved in comparison to hot-pressed porous alumina found in the literature. In addition, the cementitious porous bearing provided a superior loading capacity for gaps higher than 10 μm when compared to graphite porous bearing found in the literature. The results revealed the cementitious composites are promising materials for porous restrictor in aerostatic thrust bearings.
Xiaobo Wang,Jie Zhou,Caojian Jiang,Jia Wang,Keting Gui,Hywel Rhys Thomas 한국화학공학회 2019 Korean Journal of Chemical Engineering Vol.36 No.12
Mn-Ce-Ti catalysts were prepared by different precursors (including manganese nitrate, manganese acetate, and manganese chloride) and used for selective catalytic reduction (SCR) of NO with ammonia. The relationships among the structure, physicochemical properties, and catalytic activity were explored by N2 adsorption/desorption, X-ray diffraction (XRD), H2-temperature programmed reduction (H2-TPR), NH3-temperature programmed desorption (NH3TPD), X-ray photoelectron spectroscopy (XPS), high-resolution transmission electron microscopy (HR-TEM), scanning electron microprobe (SEM) and energy dispersive spectroscopy (EDS) techniques. The results show that the different Mn precursors play important roles in the catalytic activity. The Mn-Ce-Ti(N) catalyst synthesized by manganese nitrate precursor exhibits the best catalytic activity, while the Mn-Ce-Ti(C) and Mn-Ce-Ti(Cl) catalyst prepared by manganese acetate and manganese chloride, respectively, exhibit relatively low catalytic activity. The manganese nitrate precursor could promote the specific surface area and redox ability, enhance the amounts of Brønsted and Lewis acid sites, and enrich the surface active species such as Mn4+, Ce3+ and surface chemisorbed oxygen of the catalyst, all of which will contribute to the SCR performance. Moreover, the Mn-Ce-Ti(N) catalyst possesses highly dispersed and uniform surface active species, which will result in the optimal physicochemical properties and superior catalytic performance.