Production technologies and financial performance: The effect of uneven diffusion among competitors

We explore the impact of a production technology on financial performance from the perspectives of technology diffusion and competitive strategy theory. We analyse how diffusion at firm and market levels influences the returns from the technology. We suggest that firm heterogeneity in the level of technology use leads to competitive advantages for relatively intensive adopters. We empirically test our propositions through the analysis of the diffusion of the Automated Teller Machine among Spanish savings banks between 1986 and 2004. Our results show that it is not the absolute but the relative level of use that drives the impact of the technology on profitability. Furthermore, as the technology is more intensively deployed in the market, the profitability of every firm decreases. Interestingly, in our empirical setting, this negative effect eventually leads to an aggregate negative impact on the profitability of the savings banks.     

Body sensations of higher and lower anxiety sensitive speakers anticipating a public presentation

The purpose of this study was to determine if higher and lower anxiety sensitive speakers would exhibit differential levels of four types of body sensations (gastrointestinal, cardiopulmonary, disorientation, and numbness) while anticipating giving a public speech. The participants were eighty‐seven undergraduate students who gave five‐minute informative speeches. The Anxiety Sensitivity Index was used to measure anxiety sensitivity, and the Body Sensations Questionnaire was used to measure body sensations during the anticipatory period. The results showed a significant difference in body sensations between higher and lower anxiety sensitivity speakers for gastrointestinal, cardiopulmonary and numbness sensations. There were no significant differences found for disorientation between higher and lower anxiety sensitive speakers.     

The influence of situational variables on ball possession in the English Premier League

Abstract

The aims of this study were twofold: (1) to examine the influence of situational variables on ball possession in elite soccer and (2) to quantify the variables that discriminate between high or low percentage ball possession teams (HPBPT and LPBPT) across different playing positions. Match performance data were collected from English Premier League matches using a multiple-camera system. Data were examined using linear regression, a 2 × 5 factorial analysis of variance and discriminant analysis. Playing against weak opposition was associated with an increase (P < 0.01) in time spent in possession while playing away decreased (P < 0.01) the time spent in possession by ~3%. Possession was increased (P < 0.01) when losing than winning or drawing. Finally, the better the ranking of a team, the higher (P < 0.01) the time spent in possession. The playing position effect was significant for all variables (P < 0.05); however, there were only interactions with team ball possession in some cases. The discriminant analysis identified functions for all five playing positions (P < 0.01). The variables that discriminated performance between HPBPT and LPBPT were different for various playing positions, although the number of successful passes was the most common discriminating variable. The results demonstrate that HPBPT and LPBPT developed different possession strategies during matches and that selected variables such as successful passes were identified to explain these data trends across various playing positions. Combinations of variables could be used to develop a probabilistic model for predicting time spent in possession by teams.     

Match activity and physiological load during a clay-court tennis tournament in elite female players

Abstract

The aim of this study was to determine the match activity and physiological demands of women's tennis during a 3-day clay-court tennis tournament. The activity profile of eight players was determined by filming each competitive match with video cameras. Metabolic-perceptual measurements–blood samples and individual ratings of perceived exertion (RPE)–were taken while the players were sitting during permitted changeover breaks in play. The activity profile of the players was as follows: strokes per rally, 2.5 ± 1.6; rally duration, 7.2 ± 5.2 s; rest time between rallies, 15.5 ± 7.3 s; effective playing time, 21.6 ± 6.1%; work-to-rest ratio, 1:2.1. Blood lactate concentration [2.2 ± 0.9 mmol · l^?1 (n = 50) vs. 2.2 ± 0.7 mmol · l^?1 (n = 48)] and RPE values [12.2 ± 2.4 (n = 57) vs. 12 ± 2.3 (n = 57)] were not significantly different (P = 0.65–0.78) between service and return games. The results highlight the importance of taking these factors (i.e. activity patterns and physiological profile) into account when planning training strategies for competitive females players. As such, tennis training regimes should be adapted to the specific demands imposed by match-play in female players on a clay-court surface.     

The impact of a university teaching development programme on student approaches to studying and learning experience: evidence from Chile

In this paper, we analyse the impact of teacher participation in a University Teaching Diploma on student approaches to studying and learning experience. A quasi-experimental and multilevel design was employed. University teachers answered the Approaches to Teaching Inventory and students completed the Course Experience Questionnaire and the Study Process Questionnaire. In addition, contextual variables were included for both teachers and students. The total sample included 44 teachers and 686 students. Of these, 25 university teachers had completed the University Teaching Diploma and 19 had not; 373 students were in courses with a diploma teacher and 313 in courses were not. Results show that those university teachers who have completed the programme have, in their courses, students who were more likely to declare having adopted a deep approach to studying than those teachers who have not participated in the diploma. At the same time, no significant impact was found on the student learning experience. For practical purposes, this investigation provides evidence for the value of teaching development programmes in promoting deeper approaches to studying. For research purposes, it proposes the use of multilevel models to evaluate the impact of university teaching diplomas.     

Approaches to Collaboration: Experiences of the Early Head Start-Child Care Partnerships

ABSTRACT

This study examined how partnerships between early care and education providers were developed and how they worked together to deliver comprehensive, high-quality services to infants and toddlers from low-income families. Survey data were collected from 220 Early Head Start (EHS) program directors and 386 child care center directors and family child care providers participating in EHS-child care partnerships. Research Findings: Nearly half of EHS programs chose partners with whom they had prior relationships, and most engaged them early (often before receiving the grant). Both EHS programs and child care providers described their relationships as mutually respectful and focused on similar goals. Through the partnerships, child care providers had access to professional development opportunities and offered children and families comprehensive services, such as health screenings. Practice or Policy: This study provided a nationally representative picture of EHS-child care partnerships. The findings suggest that strong relationships are foundational to the implementation of early care and education collaborations aimed at expanding access to high-quality care for infants and toddlers from low-income families. Collaborations are a potentially important policy lever that can help support the expansion of high-quality early care and education.     

A model to design interactive learning environments for children with visual disabilities

Current interactive learning environments cannot be accessed by learners with disabilities, in particular for students with vision disabilities. Modeling techniques are necessary to map real-world experiences to virtual worlds by using 3D auditory representations of objects for blind people. In this paper, a model to design multimedia software for blind learners is presented. The model was validated with existing educational software for these users. We describe the modeling of the real world including cognitive usability testing tasks by considering not only the representation of the real world but also modeling the learner’s knowledge of the virtual world. The software architecture is also described by using this model, displaying the components needed to impact learning. Finally, we analyze critical issues in designing software for learners with visual disabilities and propose some recommendations and guidelines.     

Peer teaching among physical therapy students during human gross anatomy: Perceptions of peer teachers and students

Despite nearly 200 accredited entry‐level physical therapist education programs in the United States that culminate in a doctoral degree, only a paucity of reports have been published regarding the efficacy of peer teaching in gross anatomy. No one has described the usefulness of peer teaching from the viewpoint of the peer teacher. An organized peer teaching method provided by four second‐year doctors of physical therapy (DPT) students in a semester course in gross anatomy had a positive impact on the academic performance in gross anatomy of first‐year DPT students. The unique feature of the weekly peer teaching sessions was a packet assembled by the second‐year peer teachers, which contained diagrams, fill‐in‐the blank questions, and helpful mnemonic devices. This study surveyed perceptions of first‐year DPT students in response to a peer teaching method, using a structured 10‐item questionnaire and a five‐point Likert scale. Second‐year DPT peer teachers provided written reflections about the benefits and challenges of serving as a peer teacher. Results revealed that 13 planned peer‐teaching experiences provided by four second‐year DPT students were valuable and promoted a firm understanding of anatomical relationships important for the clinical competence of physical therapist students. Moreover, peer teachers acknowledged acquiring clinically desirable teaching, academic, organizational, and time management skills from the experience. As a result, physical therapist educators may wish to consider this model of peer teaching to augment their teaching strategies for a class in gross human anatomy. Anat Sci Ed 1:199–206, 2008. © 2008 American Association of Anatomists.