Understanding the prospect of success in professional training: an ethnography into the assessment of problem-based learning

One of the most fundamental innovations in higher education is the introduction of the method known as problem-based learning (PBL). While literature has largely focused on its learning goals and the transition from lectures to tutorials, little research has problematised why this is a successful methodology and what we consider as students’ success. Drawing upon various ethnographic techniques, the authors analyse PBL as a field of expectations in light of Expectation-Value Theory. Beyond merely showing that PBL is a culturally constructed practice, the article elaborates on how students’ expectations inform practices, performance and evaluation, which is important for assessing the successfulness of the method. By discussing students’ expectations, dynamics and power relations, the present article is a contribution to the research addressing what has come to be known as the ‘black box’ of PBL.     

Practice task design in team sports: Representativeness enhanced by increasing opportunities for action

Abstract This study investigated effects of manipulating the number of action possibilities in a futsal passing task to understand the representativeness of practice tasks designs. Eight male senior futsal players performed a passing task in which uncertainty on passing direction for the player in possession of the ball was increased in four conditions and compared with passing data from a competitive match. Performance during a passing task and competitive futsal performance was compared using ball speed and passing accuracy data. Ball speed data were analysed by approximate entropy (ApEn) to capture their regularity in each of the four conditions and during competitive performance. Significantly high levels of regularity were observed in predetermined passes in comparison with emergent passes (i.e., passes with high number of possibilities for action). Similar results for ball speed regularity were observed between practice tasks with a high number of possibilities for action (i.e., emergent passes) and competitive performance. Similar results were observed for passing accuracy in practice tasks with a high number of possibilities for action compared to competitive performance. Increases in the number of action possibilities during practice improved action fidelity of tasks in relation to competitive performance.     

Effect of strength training on rate of force development in older women

We analyzed the effect of an 8-week strength training (ST) program on the rate of force development (RFD) and electromyographic activity (EMG) in older women. Seventeen women (M age = 63.4 years, SD = 4.9) without previous ST experience were randomly assigned to either a control (n=7) or training (n=10) group. A leg-press isometric test was used for assessment. ST (three sessions/ week, three sets of 10-12 repetition maximum, five different exercises) induced significant increases (p < .05) on peak RPD (48.4%) and on RFD) and EMG of vastus medialis at time intervals of 0-50, 0-100, 0-150, and 0-200 ms (41.1-69.2% and 43.8-64.3%, respectively). Therefore, ST resulted in favorable changes in neuromuscular responses in older women.     

Personalised virtual learning spaces to support undergraduates in producing research reports: Two case studies

The purpose of this study was to create and evaluate personalised virtual learning spaces (PVLSs) in a course that was previously delivered face-to-face only. The study addressed three related questions: (1) Can a PVLS successfully be introduced into a course where IT has not previously featured? (2) Can the PVLSs be used to enhance the assessment from an extended essay to a higher-level empirical research project? (3) What are the perceptions of the students and the tutor of the PVLSs in terms of access, clarity and usefulness of the supervision of undergraduate research projects? Results showed that the introduction of the PVLSs into the course was trouble-free and that the PVLSs were able to enhance assessment. The vast majority of students and their tutor showed high levels of satisfaction, particularly with (1) the messaging tool, which allowed asynchronous, one-to-one communication with the tutor, and (2) the interactive web-forms, which provided structured guidance of how to conduct a small-scale empirical research project. The study concludes that the interactive web-forms and messaging tool can be beneficial functions of virtual learning spaces.     

Quantitative analysis of Brazilian football players' organisation on the pitch

The purpose of this study was to characterise Brazilian teams' coverage area and spread on the pitch while attacking and defending and to analyse the teams' organisation in tackle and shot on goal situations. We obtained the trajectories of 223 players in eight games with a tracking method. Team area was defined as the area of the convex hull formed by players' positions. Team spread was defined as the Frobenius norm of the distance-between-player matrix. We calculated teams' area and spread over time and in situations of shots on goal (n = 233) and tackles (n = 1897). While the players attacked, spread and area (median +/- confidence interval) ranged from 322.9 +/- 0.8 to 387.8 +/- 1.0 m and from 905.4 +/- 4.4 to 1407.6 +/- 5.5 m2, respectively. On defence, the values were smaller (p < 0.05) and ranged from 283.4 +/- 0.9 to 325.8 +/- 0.9 m and from 773.8 +/- 4.6 to 1158.4 +/- 5.5 m2 for the spread and the area. In defending circumstances, the teams presented a greater area and spread when they suffered shots on goal than when the teams performed tackles. In attacking situations, the teams presented a greater area and spread when they suffered tackles than when they performed shots on goal. The results allowed showing the attacking-defending interaction between Brazilian teams.     

InfoIQ: Targeting Information and Technology Lifelong Needs

SUMMARY

The evolution of information literacy instruction for graduate students at the UCLA Anderson School of Management is described. The emphasis is on the need for instruction that develops student competencies with an eye toward the long view-a lifetime of learning. Key success factors are leveraging partnerships with key stakeholders, and developing just-in-time interventions at significant events in the student life cycle. An Information Literacy Campaign helped define the needs and competencies, and the subsequent pilot program, InfoIQ, has been successful in integrating information literacy instruction into the core MBA experience.     

Velocity- and power-load relationships in the half,parallel and full back squat

This study aimed to compare the load-velocity and load-power relationships of three common variations of the squat exercise. 52 strength-trained males performed a progressive loading test up to the one-repetition maximum (1RM) in the full (F-SQ), parallel (P-SQ) and half (H-SQ) squat, conducted in random order on separate days. Bar velocity and vertical force were measured by means of a linear velocity transducer time-synchronized with a force platform. The relative load that maximized power output (Pmax) was analyzed using three outcome measures: mean concentric (MP), mean propulsive (MPP) and peak power (PP), while also including or excluding body mass in force calculations. 1RM was significantly different between exercises. Load-velocity and load-power relationships were significantly different between the F-SQ, P-SQ and H-SQ variations. Close relationships (R² = 0.92–0.96) between load (%1RM) and bar velocity were found and they were specific for each squat variation, with faster velocities the greater the squat depth. Unlike the F-SQ and P-SQ, no sticking region was observed for the H-SQ when lifting high loads. The Pmax corresponded to a broad load range and was greatly influenced by how force output is calculated (including or excluding body mass) as well as the exact outcome variable used (MP, MPP, PP).     

战术训练动作特征对国家女子水球队能量摄入的影响

目的：观察备战2014亚运会期间,国家女子水球队身体成分、专项身体素质和战术训练动作强度分布特征与能量摄入的关系。方法：除守门 员外,备战2014亚运会中国国家女子水球队24名队员,（22±4）岁,（23.0±2.3）kg/m2,按水球战术训练角色分为中锋（n=6）、防中锋（n=10）和外线（n= 8）3组,进行连续6天的膳食调查,同时采集该周全部战术训练动作强度分布数据,专项游泳成绩和身体成分于膳食调查前一周测量。结果：（1）外 线运动员身高、体重和去脂体重显著低于中锋和防中锋,体脂%无组间差异;（2）防中锋运动员10×200 m泳速显著慢于外线,中锋运动员10×50 m泳 速显著快于防中锋;（3）战术训练中,外线运动员低强度动作持续时间和训练时间比重显著高于中锋和防中锋,中、高强度对抗时间显著低于中锋和 防中锋;（4）外线运动员的日能量摄入总量显著高于中锋;（5）受试队员体重、体脂重量、去脂重量、BMI 和体脂%与日能量摄入总量呈显著负相关,宏 量营养素摄入量与日能量摄入总量呈显著正相关,专项游泳成绩、低强度战术动作训练持续时间和训练时间比重与能量摄入总量呈显著正相关。 结论：战术训练不同强度动作分布特征而非身体成分和专项身体素质,是决定重大比赛备战期间国家女子水球队不同位置运动员能量摄入的重要 因素。     

Genome: twisting stories with DNA

In 1920, the German botanist Hans Winkler coined the concept of the ‘genome’. This paper explores the history of a concept that has developed in parallel with advances in biology and supports novel and powerful heuristic biological research in the 21st century. From a structural interpretation (the genome as the haploid number of chromosomes), it has changed to keep pace with technological progress and new interpretations of the material of heredity. In the first place, the ‘genome’ was extended to include all the material in the nucleus, then the sum of all genes, and (with the discovery of the structure of DNA) the sum of the nucleotide base sequences. In the early 21st century, it has become a much more complex and central concept that has spawned the growing field of studies referred to as the ‘omics’.