Validation of maturity offset in a longitudinal sample of Polish girls     

Robert M. Malina  Sławomir M. Kozieł 《Journal of sports sciences》2013,31(14):1374-1382

Abstract

This study attempted to validate an anthropometric equation for predicting age at peak height velocity (PHV) in 198 Polish girls followed longitudinally from 8 to 18 years. Maturity offset (years before or after PHV) was predicted from chronological age, mass, stature, sitting height and estimated leg length at each observation; predicted age at PHV was the difference between age and maturity offset. Actual age at PHV for each girl was derived with Preece–Baines Model 1. Predicted ages at PHV increased from 8 to16 years and varied relative to time before and after actual age at PHV. Predicted and actual ages at PHV did not differ at 9 years, but predicted overestimated actual age at PHV from 10 to 16 years. Girls of contrasting maturity status differed in predicted age at PHV from 8 to 14 years. In conclusion, predicted age at PHV is dependent upon age at prediction and individual differences in actual age at PHV, which limits its utility as an indicator of maturity timing in general and in sport talent programmes. It may have limited applicability as a categorical variable (pre-, post-PHV) among average maturing girls during the interval of the growth spurt, ~11.0–13.0 years.  相似文献   

Brain drain,brain gain,and mobility: theories and prospective methods     

Bohdan Jałowiecki  Grzegorz Jerzy Gorzelak 《Higher Education in Europe》2004,29(3):299-308

This paper presents some theoretical and methodological considerations associated with the geographical and professional mobility of science professionals, including the conduct by the authors of a large scale survey questionnaire in Poland in 1994. It does not directly relate to research conducted elsewhere in the region, but does reflect selected issues and problems encountered.  相似文献   

Practice what you preach: Adoption of internal campus innovations at Dutch research-intensive universities     

Małgorzata Rymarzak  Alexandra den Heijer  Monique Arkesteijn  Mathilda Du Preez 《Higher Education Quarterly》2023,77(3):447-464

Campus decision makers are increasingly expected to adopt ‘campus innovations’ (affecting real estate and different facilities), not only from the market and demand-led (external campus innovations), but also developed by the university's own scientists (internal campus innovations). The adoption of the latter can be driven and hindered by many unique factors that campus decision makers have not dealt with before. To provide insight into them, qualitative data were collected from 13 out of 14 Dutch research-intensive universities. The results indicate that internal campus innovations are driven by co-creation stimulation, collaborative partnership, transparency and accountability, and local development contribution. Their adoption, however, may be obstructed by barriers embedded in the interaction between campus decision makers and scientists, organizational university context, funds unavailability and innovations' supply-pushed characteristics. An increased understanding of these barriers and the practices to overcome them is crucial for universities' campus decision makers to actively engage in the adoption of internal campus innovations.  相似文献   

All that glitters is not gold—Mixed early labour market outcomes of STEM graduates in Poland     

Tomasz Z. Zając  Tomasz Żółtak  Marek Bożykowski  Mikołaj Jasiński 《European Journal of Education》2023,58(3):477-497

The expansion of higher education resulted in a growing interest in post-graduation labour market outcomes. Two conflicting narratives are present in the debate. The first focuses on the shortage of skills and the need for further expansion of the sector and seems to pertain mostly to science, technology, engineering, and mathematics (STEM). The second revolves around over-education and mismatch leading to graduate unemployment or underemployment. Such concerns pertain especially to humanities and social sciences. However, in this article, we argue that the STEM versus non-STEM opposition on which this debate is premised is not adequate for analysing post-graduation labour market outcomes. We leverage a unique administrative dataset comprising monthly records on the labour market status of the entire population of recent Polish university graduates (N = 161,323) to demonstrate the heterogeneity of the STEM category in terms of labour market outcomes and the limited predictive value of the field of study for those outcomes. We argue that the category is too broad and internally diverse to be used as an overarching category, especially in research meant to inform policymaking.  相似文献   

‘Cracks’ in the scholarly communications system: Insights from a longitudinal international study of early career researchers     

David Nicholas  Cherifa Boukacem-Zeghmouri  Blanca Rodríguez-Bravo  Eti Herman  Abdullah Abrizah  David Clark  Galina Serbina  David Sims  Marzena Świgoń  Jie Xu  Anthony Watkinson  Hamid R. Jamali  Carol Tenopir  Suzie Allard 《Learned Publishing》2023,36(2):319-322

• 170 early career researchers interviewed three times over 2 years, have uniquely contributed towards a stress test of scholarly communications and cracks have been identified.
• The perfect storm created by the convergence of millennial values and the pandemic appears to have fast-forwarded the cracking process, perhaps, for the good.
• The cracks in question are: (1) peer review; (2) reputational assessment; (3) unethical/questionable practices; (4) collaboration; (5) networking.

  相似文献