School-based assessment in the 1986 NSW higher school certificate     

Brian Low  Moya Adams  Sam Ball  George Cooney  Ruth Neumann 《The Australian Educational Researcher》1988,15(3):11-23

The paper reports an evaluation of the introduction of a school-based assessment component into the 1986 NSW Higher School Certificate. A research team from Macquarie University and the University of Sydney monitored the processes of assessment policy development in eight Sydney schools during 1985 and 1986. These case studies of process and product were supplemented in 1986 by studies in ten NSW country high schools. A survey of teachers and students in a random sample of 58 high schools in NSW was completed towards the end of 1986. The results of the case studies and the survey are discussed within the following framework: Information Flow from the Board of Senior School Studies to the Schools; Policy Development in Schools; Features of Assessment Policies and their Implementation; and the Impact of Assessment on Classroom Practices and Relationships in the Classroom.  相似文献   

Cognitive abilities of Kenyan children in relation to nutrition, family characteristics, and education   总被引：2，自引：0，他引：2  

M Sigman  C Neumann  A A Jansen  N Bwibo 《Child development》1989,60(6):1463-1474

The purpose of this study was to determine whether nutritional factors, family characteristics, and the duration of schooling were associated with cognitive and attentional capacities in children growing up in rural Kenya. Food intake was measured by direct observation and weighment twice monthly over the course of a year. Families were characterized in terms of socioeconomic status and the literacy of the parents. Children who were better nourished had higher composite scores on a test of verbal comprehension and the Raven's matrices. Better-nourished females were more attentive during classroom observations than malnourished female schoolchildren. Family characteristics and duration of school participation were associated with cognitive abilities for both boys and girls. For the children considered as a group, cognitive scores were best predicted by a combination of factors including duration of schooling, food intake, physical stature, and SES.  相似文献   

Diversity,Doctoral Education and Policy     

Ruth Neumann 《高等教育研究与发展》2002,21(2):167-178

This paper argues the importance of diversity for research and doctoral education and the key role of policy in encouraging it. It considers the impact of higher education policy on diversity in doctoral education through the three prevailing themes of cost, concentration and relevance, illustrating in each instance both positive and negative influences. It is a time of dynamic change where the role and purposes of doctoral study and the role and production of knowledge in society are changing. Policy plays an important part in leading and shaping this development.  相似文献   

Standards of research publication: Differences between the physical sciences and the social sciences     

Dr. Yoram Neumann 《Research in higher education》1977,7(4):355-367

This study examines differences in standards of research publications between the physical sciences and the social sciences. The results of the first two hypotheses tested indicate that the predominant form of publication in the physical sciences are articles, whereas books predominate in the social sciences. Furthermore, differences were found in the relevant dimension of publication between faculties in more prestigious departments and faculties in less prestigious departments. The policy implications of these findings to university administration are discussed.  相似文献   

21st-century science education digital ecologies: Technology,technique, shoelaces,promise, and pitfalls?     

Noemi Waight  Knut Neumann 《科学教学研究杂志》2020,57(9):1313-1321

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Contralateral limb deficit after ACL-reconstruction: an analysis of early and late phase of rate of force development     

Dragan M. Mirkov  Olivera M. Knezevic  Nicola A. Maffiuletti  Marko Kadija  Aleksandar Nedeljkovic  Slobodan Jaric 《Journal of sports sciences》2017,35(5):435-440

The aim of this study was to assess the effect of a unilateral anterior cruciate ligament reconstruction (ACLR) on maximum voluntary contraction (MVC) and explosive strength of both the involved limb and the uninvolved limb. Nineteen male athletes completed a standard isometric testing protocol 4 months post-ACLR, while 16 healthy participants served as a control group (CG). The explosive strength of the knee extensors and flexors was assessed as RFD obtained from the slope of the force–time curves over various time intervals. Both muscle groups of the involved limb had significantly lower MVC compared to the uninvolved. The involved limb also had significantly lower RFD in the late phase of contraction (140–250 ms) for both knee extensors and flexors (P < 0.05). There was no difference in MVC between the uninvolved limb and the CG. However, RFD of the uninvolved limb was lower compared to CG for both knee extensors (0–180 ms; P < 0.01) and flexors (0–150 ms; P < 0.05). ACLR leads to lower MVC and explosive strength of the involved limb. As a consequence of potential crossover (presumably neural-mediated) effects, explosive strength deficits could be bilateral, particularly in the early phase of the contraction (<100 ms).  相似文献   

Sleep of professional athletes: Underexploited potential to improve health and performance   总被引：1，自引：1，他引：0  

Henri Tuomilehto  Ville-Pekka Vuorinen  Elina Penttilä  Marko Kivimäki  Markus Vuorenmaa  Mika Venojärvi 《Journal of sports sciences》2017,35(7):704-710

Sleep disorders have become increasingly prevalent affecting health and working ability. Restorative sleep may be considered important for athletes’ successful recovery and performance. However, some athletes seem to experience major problems in sleeping. Thus far, there is limited scientific information about their sleep. This study aimed to evaluate the quality of sleep and the prevalence of sleep disorders as well as the impact of a structured sleep counselling protocol in professional athletes. A total of 107 professional ice hockey players participated in the study. The exploratory observational 1-year follow-up study consisted of questionnaire-based sleep assessment followed by general sleep counselling and, when needed, polysomnography and an individual treatment plan. One in every four players was found to have a significant problem in sleeping. All athletes considered sleep essential for their health and three in every four players considered that counselling would improve their performance. Counselling and individual treatment were found to improve significantly the quality of sleep with the mean alteration of 0.6 (95% CI 0.2–1.0, P = 0.004) in a scale from 0 to 10. Our results support that sleep problems are common in professional athletes. However, systematic examination, counselling and individual treatment planning can improve the quality of their sleep.  相似文献   

Comparison of diagnostic accuracy for eight SARS-CoV-2 serological assays     

Andrea Te&#x;ija Kuna  Milena Hanek  Ines Vukasovi&#x;  Nora Nikolac Gabaj  Valentina Vidranski  Ivana &#x;elap  Marijana Miler  Nevenka Stan in  Brankica &#x;imac  Marcela ivkovi&#x;  Marko arak  Marta Kmet  Marijana Jovanovi&#x;  Sanja Tadinac  Sandra &#x;upraha Goreta  Josipa Peri&#x;a  Ivan &#x;amija  Mario &#x;tefanovi&#x; 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2021,31(1)

IntroductionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) serological tests have been suggested as an additional diagnostic tool in highly suspected cases with a negative molecular test and determination of seroprevalence in population. We compared the diagnostic performance of eight commercial serological assays for IgA, IgM, and IgG antibodies to the SARS-CoV-2 virus.Materials and methodsThe comparison study was performed on a total of 76 serum samples: 30 SARS-CoV-2 polymerase chain reaction (PCR)-negative and 46 SARS-CoV-2 PCR-positive patients with asymptomatic to severe disease and symptoms duration from 3-30 days. The study included: three rapid lateral flow immunochromatographic assays (LFIC), two enzyme-linked immunosorbent assays (ELISA), and three chemiluminescence immunoassays (CLIA).ResultsAgreement between IgM assays were minimal to moderate (kappa 0.26 to 0.63) and for IgG moderate to excellent (kappa 0.72 to 0.92). Sensitivities improved with > 10 days of symptoms and were: 30% to 89% for IgM; 89% to 100% for IgG; 96% for IgA; 100% for IgA/IgM combination; 96% for total antibodies. Overall specificities were: 90% to 100% for IgM; 85% to 100% for IgG; 90% for IgA; 70% for IgA/IgM combination; 100% for total antibodies. Diagnostic accuracy for IgG ELISA and CIA assays were excellent (AUC ≥ 0.90), without significant difference. IgA showed significantly better diagnostic accuracy than IgM (P < 0.001).ConclusionThere is high variability between IgM assays independently of the assay format, while IgG assays showed moderate to perfect agreement. The appropriate time for testing is crucial for the proper immunity investigation.  相似文献   

Predicting elections from social media: a three-country,three-method comparative study     

Kokil Jaidka  Saifuddin Ahmed  Marko Skoric  Martin Hilbert 《亚洲交流杂志》2019,29(3):252-273

ABSTRACT

This study introduces and evaluates the robustness of different volumetric, sentiment, and social network approaches to predict the elections in three Asian countries – Malaysia, India, and Pakistan from Twitter posts. We find that predictive power of social media performs well for India and Pakistan but is not effective for Malaysia. Overall, we find that it is useful to consider the recency of Twitter posts while using it to predict a real outcome, such as an election result. Sentiment information mined using machine learning models was the most accurate predictor of election outcomes. Social network information is stable despite sudden surges in political discussions, for e.g. around elections-related news events. Methods combining sentiment and volume information, or sentiment and social network information, are effective at predicting smaller vote shares, for e.g. vote shares in the case of independent candidates and regional parties. We conclude with a detailed discussion on the caveats of social media analysis for predicting real-world outcomes and recommendations for future work.  相似文献   

Systems,transfer, and fields: Evaluating a new approach to energy instruction     

David Fortus  Marcus Kubsch  Tom Bielik  Joseph Krajcik  Yaron Lehavi  Knut Neumann  Jeffrey Nordine  Sebastian Opitz  Israel Touitou 《科学教学研究杂志》2019,56(10):1341-1361

Energy is a central concept in science in every discipline and also an essential player in many of the issues facing people everywhere on the globe. However, studies have shown that by the end of K-12 schooling, most students do not reach the level of understanding required to be able to use energy to make sense of a wide range of phenomena. Many researchers have questioned whether the conceptual foundations of traditional approaches to energy instruction may be responsible for students' difficulties. In response to these concerns, we developed and tested a novel approach to middle school physical science energy instruction that was informed by the recommendations of the Framework for K-12 Science Education (National Research Council, 2012a) and the Next Generation Science Standards (NGSS) (NGSS Lead States, 2013). This new approach differs substantially from more traditional approaches to energy instruction in that it does not require energy forms and it emphasizes connections between energy, systems, and fields that mediate interaction-at-a-distance. We investigated student learning during this novel approach and contrasted it with student learning within a comparable unit based on a more traditional approach to energy instruction. Our findings indicate that students who learned in the new approach outperformed students who learned in the traditional approach in every quantitative and qualitative aspect considered in this study, irrespective of their prior knowledge of energy. They developed more parsimonious knowledge networks in relation to energy that focused primarily around the concept of energy transfer. This study warrants further investigation into the value of this new approach to energy instruction in both middle and high school.  相似文献