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Serap Kurbanoglu 《International Information and Library Review》2013,45(4):252-256
The purpose of this article is to explore the use of mixed methods research (MMR) in articles published in library and information science (LIS) journals in Sub-Saharan Africa (SSA) from 2004 to 2008. A mixed methods research framework provided in the methodological literature is used to determine how this method was practiced within the LIS scientific community in SSA. Six hundred and eighty five articles published in nine peer-reviewed LIS journals in SAA were reviewed, finding the dominant research methods in these journals to be survey designs and historical research. The use of MMR was limited: 48 out of 685 articles used the mixed methods approaches that were identified in the methodological literature. A paradigm shift and a change of mindset are recommended for LIS researchers in SSA so that they may exploit the advantages offered by mixed methods research in conducting their studies. 相似文献
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The paper attempts to determine whether there are significant gender differences in academic performance among undergraduate
students in a large public university in Turkey based on three indicators; university entrance scores, performance in the
English preparatory school and in the program the student is majoring in. The paper finds that a smaller number of female
students manage to enter the university and when they do so, they enter with lower scores. However, once they are admitted
to the university, they excel in their studies and outperform their male counterparts. This result holds after controlling
for the field of study and individual attributes. 相似文献
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Emil List Larsen Henrik Enghusen Poulsen Cristina Michaelsen Laura Kofoed Kjær Mark Lyngbæk Emilie Skytte Andersen 《Journal of sports sciences》2020,38(18):2080-2091
ABSTRACT
Acute and adaptive changes in systemic markers of oxidatively generated nucleic acid modifications (i.e., 8-oxo-7,8-dihydro-2?-deoxyguanosine (8-oxodG) and 8-oxo-7,8-dihydroguanosine (8-oxoGuo)) as well as inflammatory cytokines (i.e., C-reactive protein, interleukin-6, interleukin-10, and tumour necrosis factor alpha), a liver hormone (i.e., fibroblast growth factor 21 (FGF21)), and bone metabolism markers (sclerostin, osteocalcin, C-terminal telopeptide, and N-terminal propeptide of type 1 procollagen) were investigated following a marathon in 20 study participants. Immediate changes were observed in inflammatory cytokines, FGF21, and bone metabolism markers following the marathon. In contrast, no immediate changes in urinary excretion of 8-oxodG and 8-oxoGuo were evident. Four days after the marathon, decreased urinary excretion of 8-oxodG (-2.9 (95% CI -4.8;-1.1) nmol/24 h, P < 0.01) and 8-oxoGuo (-5.8 (95% CI -10.3;-1.3) nmol/24 h, P = 0.02) was observed. The excretion rate of 8-oxodG remained decreased 7 days after the marathon compared to baseline (-2.3 (95%CI -4.3;-0.4) nmol/24 h, P = 0.02), whereas the excretion rate of 8-oxoGuo was normalized. In conclusion marathon participation immediately induced a considerable inflammatory response, but did not increase excretion rates of oxidatively generated nucleic acid modifications. In fact, a delayed decrease in oxidatively generated nucleic acid modifications was observed suggesting adaptive antioxidative effects following exercise. 相似文献
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In a retrospective study, we compared school performance of 53 children practicing music (group 1) with 67 controls not practicing
music (group 2). Overall average marks as well as average marks of all school subjects except sports were significantly higher
in children who do (group 1) than in those who do not practice music (group 2). In a multiple regression analysis, musical
training, parent’s income, and educational level (grades) correlated significantly with overall average marks. A slight decrease
of overall average marks over 4 years from grades 3 to 6 was found in the control group only. Musical training evidently correlates
with children’s better performance at school, but is obviously part of a multifactorial dependence. Continuous musical training
appears to help achieve and maintain school performance at a high level over time. 相似文献
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We appreciate the opportunity to respond to the Editorial in this issue of the Journal of College Student Psychotherapy by editors Philip Rosenbaum and Ryan Weatherford, who express concerns about the new Examination for Professional Practice in Psychology Step 2 (EPPP Step 2). Our discussion describes the constellation of factors that influenced ASPPB’s decision to develop the EPPP Step 2 at this point in time. We also respond to the concerns expressed about the increasing costs of graduate training and the timing of the EPPP Step 2. Finally this commentary will highlight the difference between the training and licensing processes and will describe how the EPPP Step 2 will help licensing boards fulfill their mandate to protect a vulnerable public. 相似文献
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Morten Bredsgaard Randers Jesper L. Andersen Jesper Petersen Emil Sundstrup Markus D. Jakobsen Jens Bangsbo 《Journal of sports sciences》2014,32(13):1300-1308
AbstractThe aim was to investigate performance variables and indicators of cardiovascular health profile in elderly soccer players (SP, n = 11) compared to endurance-trained (ET, n = 8), strength-trained (ST, n = 7) and untrained (UT, n = 7) age-matched men. The 33 men aged 65–85 years underwent a testing protocol including measurements of cycle performance, maximal oxygen uptake (VO2max) and body composition, and muscle fibre types and capillarisation were determined from m. vastus lateralis biopsy. In SP, time to exhaustion was longer (16.3 ± 2.0 min; P < 0.01) than in UT (+48%) and ST (+41%), but similar to ET (+1%). Fat percentage was lower (P < 0.05) in SP (–6.5% points) than UT but not ET and ST. Heart rate reserve was higher (P < 0.05) in SP (104 ± 16 bpm) than UT (+21 bpm) and ST (+24 bpm), but similar to ET (+2 bpm), whereas VO2max was not significantly different in SP (30.2 ± 4.9 ml O2 · min?1 · kg?1) compared to UT (+14%) and ST (+9%), but lower (P < 0.05) than ET (?22%). The number of capillaries per fibre was higher (P < 0.05) in SP than UT (53%) and ST (42%) but similar to ET. SP had less type IIx fibres than UT (?12% points). In conclusion, the exercise performance and cardiovascular health profile are markedly better for lifelong trained SP than for age-matched UT controls. Incremental exercise capacity and muscle aerobic capacity of SP are also superior to lifelong ST athletes and comparable to endurance athletes. 相似文献