From Flavr Savr Tomatoes to Stem Cell Therapy: Young People’s Understandings of Gene Technology, 15 Years on

This paper explores knowledge and understanding of basic genetics and gene technologies in school students who have been taught to a ‘science for all’ National Curriculum and compares 482 students in 1995 (gene technology was a new and rapidly developing area of science with potential to impact on everyday life; the first cohort of students had been taught to the National Curriculum for Science) with 154 students in 2011 (genomics had replaced gene technology as a rapidly developing area of science with potential to impact on everyday life; science as a core subject within the National Curriculum was well established). These studies used the same questions, with the same age group (14–16) across the same (full) ability range; in addition the 2011 sample were asked about stem cells, stem cell technology and epigenetics. Students in 2011 showed: better knowledge of basic genetics but continuing difficulty in developing coherent explanatory frameworks; a good understanding of the nature of stem cells but no understanding of the process by which such cells become specialised; better understanding of different genetic technologies but also a wider range of misunderstandings and confusions (both between different genetic technologies and with other biological processes); continuing difficulty in evaluating potential veracity of short ‘news’ items but greater awareness of ethical issues and the range of factors (including knowledge of genetics) which could be drawn on when justifying a view or coming to a decision. Implications for a ‘science for all’ curriculum are considered.     

The problem with women? Challenges posed by gender for career guidance practice

Institutionalised discrimination continues to perpetuate deep rooted social divisions, with gender inequality persisting as a pervasive feature of labour markets across the world. Despite the depth and breadth of gender inequality, there is limited acknowledgement in career theory that the career support needs of women are distinctive. A qualitative international comparative study into the career trajectories of older women (aged 45–65) has been conducted across six countries (Australia, Argentina, Germany, Italy, England and South Africa). The results provide an international understanding of women’s careers and offer insight into career theory and practice for women that are culturally relevant.     

Learning essential terms and concepts in Statistics and Accounting

This paper describes a terminological approach to the teaching and learning of fundamental concepts in foundation tertiary units in Statistics and Accounting, using an online dictionary-style resource (TermFinder) with customised termbanks for each discipline. Designed for independent learning, the termbanks support inquiring students from non-English-speaking backgrounds – including international students – in their understanding of the key concepts of their discipline. Two quasi-experimental studies of the use of these termbanks are reported here, showing the difference that they made in the performances of first-year students studying Statistics and Accounting, when compared with those from the previous year before the termbanks were available. In both units, the exam results for the experimental cohorts were significantly better than those of the cohorts in the preceding year. Higher success rates and raised levels of engagement with terminological questions were registered for all students, Australian domestic and international. Individual study patterns emerged in the trial of the accounting termbank, with international students making early use of the termbank with its translation equivalents in Mandarin Chinese, and Australian students more inclined to use it close to the final exam. The testing of the customised termbanks, developed collaboratively by lexicographers and academic staff, vindicates their use in large, diverse classes and their value to students as resources for independent learning. That apart, the research affirms the value of focusing on terminology and the nexus with disciplinary concepts in introductory courses.     

Auswirkungen einer Intervention auf die Auseinandersetzung und Arbeit mit Bildungsstandards bei Mathematik-Lehrkräften

The introduction of educational standards in Germany forced teachers to change their perspective in order to achieve competence-oriented teaching. The initial representative surveys throughout Germany indicated that a short time after the introduction of the educational standards, teachers in various school forms were still very slow to implement the idea of competence-oriented teaching in their everyday school life. This article presents the effects of a newly developed intervention programme in which mathematics teachers familiarised themselves with educational standards for the first time. The teacher data and the performance data of the pupils of the schools participating in the project are compared in a longitudinal study with the data of schools which were not included in the intervention programme. The results indicate that after the intervention programme has run for one year, mathematics teachers in the project schools are more competence-oriented in their teaching and reflect more intensively on the concept of the educational standards than mathematics teachers in the comparison schools.     

The effect of playing formation on high-intensity running and technical profiles in English FA Premier League soccer matches

Abstract

The aim of this study was to examine the effect of playing formation on high-intensity running and technical performance during elite soccer matches. Twenty English FA Premier League games were analysed using a multiple-camera computerized tracking system (n = 153 players). Overall ball possession did not differ (P > 0.05) between 4–4–2, 4–3–3 and 4–5–1 formations (50%, s = 7 vs. 49%, s = 8 vs. 44%, s = 6). No differences were observed in high-intensity running between 4–4–2, 4–3–3 and 4–5–1 formations. Compared with 4–4–2 and 4–3–3 formations, players in a 4–5–1 formation performed less very high-intensity running when their team was in possession (312 m, s = 196 vs. 433 m, s = 261 vs. 410 m, s = 270; P < 0.05) but more when their team was not in possession (547 m, s = 217 vs. 461 m, s = 156 vs. 459 m, s = 169; P < 0.05). Attackers in a 4–3–3 performed ～30% more (P < 0.05) high-intensity running than attackers in 4–4–2 and 4–5–1 formations. However, the fraction of successful passes was highest in a 4–4–2 (P < 0.05) compared with 4–3–3 and 4–5–1 formations. The results suggest that playing formation does not influence the overall activity profiles of players, except for attackers, but impacts on very high-intensity running activity with and without ball possession and some technical elements of performance.     

Effect of combined carbohydrate-protein ingestion on markers of recovery after simulated rugby union match-play

Abstract

In this study, we investigated the effect of ingesting carbohydrate alone or carbohydrate with protein on functional and metabolic markers of recovery from a rugby union-specific shuttle running protocol. On three occasions, at least one week apart in a counterbalanced order, nine experienced male rugby union forwards ingested placebo, carbohydrate (1.2 g · kg body mass^?1 · h^?1) or carbohydrate with protein (0.4 g · kg body mass^?1 · h^?1) before, during, and after a rugby union-specific protocol. Markers of muscle damage (creatine kinase: before, 258 ± 171 U · L^?1 vs. 24 h after, 574 ± 285 U · L^?1; myoglobin: pre, 50 ± 18 vs. immediately after, 210 ± 84 nmol · L^?1; P < 0.05) and muscle soreness (1, 2, and 3 [maximum soreness = 8] for before, immediately after, and 24 h after exercise, respectively) increased. Leg strength and repeated 6-s cycle sprint mean power were slightly reduced after exercise (93% and 95% of pre-exercise values, respectively; P < 0.05), but were almost fully recovered after 24 h (97% and 99% of pre-exercise values, respectively). There were no differences between trials for any measure. These results indicate that in experienced rugby players, the small degree of muscle damage and reduction in function induced by the exercise protocol were not attenuated by the ingestion of carbohydrate and protein.     

The how and why of academic collaboration: disciplinary differences and policy implications

This paper examines how and why academics in different parts of the academy collaborate. In this paper we argue that: (1) There is a useful analytical distinction to be made between collaboration (fluid and expressive) and Collaboration (concrete and instrumental); (2) These two are not mutually exclusive and their use varies between disciplines; and (3) This distinction is an informative one for policy making that aims to encourage collaboration. Two interview based studies were used to explore the differences in collaborative practices across disciplines. The first was small and confined to a single university (n = 36) and the second was a larger study conducted in three countries (n = 274). Cross tabulations and analysis of open ended questions demonstrated many differences across the humanities, sciences and social sciences in collaboration. The C/collaboration distinction proves useful in understanding different disciplinary approaches to research, and in pointing to implications for research policy and funding. Attempts to increase collaborative research through Collaboration only, may well have deleterious effects on both collaboration and Collaboration. Research policy and funding should bear these differences in mind when seeking to stimulate collaborative research, so as to gain better outcomes across a range of disciplines.     

Welcome to America? International student perceptions of discrimination

This research explores the experiences of international students at a research university in the U.S. Southwest. Based on interviews of a sample of 24 students from 15 countries, we consider a range of difficulties they encounter which runs from perceptions of unfairness and inhospitality to cultural intolerance and confrontation. Utilizing the conceptual framework of neo-racism to explain many of their experiences, we organize our analysis and discussion around their words and the contexts in which the difficulties they encounter emerge. We find that not all of the issues international students face can be problematized as matters of adjustment, as much research does, but that some of the more serious challenges are due to inadequacies within the host society.     

Comments on ＂How to repair the Hill cipher＂

A modification of the Hill cipher algorithm was recently proposed by Ismail et al.（2006）, who claimed that their new scheme could offer more security than the original one due to an extra non-linearity layer introduced via an elaborated key generation mechanism. That mechanism produces one different encryption key for each one of the plaintext blocks. Nevertheless, we show in this paper that their method still has severe security flaws whose weaknesses are essentially the same as that already found in the original Hill cipher scheme.