Information retrieval: new systems and current research Edited by Ruben Leon. Proceedings of the 15th Research Colloquium of the British Computer Society Information Retrieval Specialist Group,Glasgow, 1993.     

Vincent de P. Roper 《Learned Publishing》1995,8(4):263-265

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Gaming and Simulation with particular reference to the case‐study; How well do you use the Case Method?     

M. Vincent 《Educational studies》1976,2(2):111-120

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Computers in a Day Centre?     

Jane Morrell  Tom Vincent 《British Journal of Special Education》1983,10(2):10-10

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Development of SMEs and heterogeneity of trajectories: the case of biotechnology in France   总被引：1，自引：0，他引：1  

Vincent Mangematin  Stéphane LemariéJean-Pierre Boissin  David CatherineFrédéric Corolleur  Roger CoroniniMichel Trommetter 《Research Policy》2003,32(4):621-638

Biotechnology is an emergent sector based on the creation of research-intensive Small and Medium Enterprises (SMEs). While some SMEs are growing, most of them remain small, even those set-up several years ago. What is the pattern of development of the biotech sector? What are the patterns of development of firms? Studies on the development of high-tech SMEs have focused on a business model, in which entrepreneurs rely on growth forecasts to persuade capital investors (business angels and venture capitalists) to invest in a radical innovation project. Firms aim for a world market to industrialise their innovation, and initial public offering (IPO) enables initial investors to make profits that offset risky initial investment. While this model is appealing, it is simply one of the possible models of biotechnology development. Some firms are not designed to experience exponential growth, and choose to target local markets. Moreover, not all firms have the ambition of being listed on the stock exchange. Based on an in-depth analysis of the business and development of 60 French biotech SMEs, this article identifies two business models. By defining the development trajectories of each of these models, it highlights the temporary nature of the emergent model.  相似文献   

The many faces of mobility: Using bibliometric data to measure the movement of scientists     

Nicolás Robinson-Garcia  Cassidy R. Sugimoto  Dakota Murray  Alfredo Yegros-Yegros  Vincent Larivière  Rodrigo Costas 《Journal of Informetrics》2019,13(1):50-63

This paper presents a methodological framework for developing scientific mobility indicators based on bibliometric data. We identify nearly 16 million individual authors from publications covered in the Web of Science for the 2008–2015 period. Based on the information provided across individuals’ publication records, we propose a general classification for analyzing scientific mobility using institutional affiliation changes. We distinguish between migrants--authors who have ruptures with their country of origin--and travelers--authors who gain additional affiliations while maintaining affiliation with their country of origin. We find that 3.7% of researchers who have published at least one paper over the period are mobile. Travelers represent 72.7% of all mobile scholars, but migrants have higher scientific impact. We apply this classification at the country level, expanding the classification to incorporate the directionality of scientists’ mobility (i.e., incoming and outgoing). We provide a brief analysis to highlight the utility of the proposed taxonomy to study scholarly mobility and discuss the implications for science policy.  相似文献   

Comparing journal and paper level classifications of science     

Fei Shu  Charles-Antoine Julien  Lin Zhang  Junping Qiu  Jing Zhang  Vincent Larivière 《Journal of Informetrics》2019,13(1):202-225

The classification of science into disciplines is at the heart of bibliometric analyses. While most classifications systems are implemented at the journal level, their accuracy has been questioned, and paper-level classifications have been considered by many to be more precise. However, few studies investigated the difference between journal and the paper classification systems. This study addresses this gap by comparing the journal- and paper-level classifications for the same set of papers and journals. This isolates the effects of classification precision (i.e., journal- or paper-level) to reveal the extent of paper misclassification. Results show almost half of papers could be misclassified in journal classification systems. Given their importance in the construction and analysis of bibliometric indicators, more attention should be given to the robustness and accuracy of these disciplinary classifications schemes.  相似文献   

Visualisation to support children with attention-deficit/hyperactivity disorder learning to solve mathematical word problems: A randomised controlled trial     

Fatemah Almuwaiziri  Natthapoj Vincent Trakulphadetkrai  Timothy Williams 《British Journal of Special Education》2023,50(2):314-324

This randomised controlled trial experimental study compared the effectiveness of using two different types of visualisation – self-constructed visualisation (SCV) and passively received visualisation (PRV) – to help children with attention-deficit/hyperactivity disorder (ADHD) solve mathematical word problems. While SCV refers to drawings that children create to help solve given word problems, PRV refers to pre-made images that accompany word problems. Twenty children with ADHD in Kuwait, aged nine to 11 years, were randomly assigned to either the SCV or PRV group, where they were taught to use either SCV or PRV to solve word problems across 20 daily one-to-one sessions. The results showed that regardless of the visualisation type, children's word problem-solving ability significantly improved. Children with ADHD should thus be encouraged to use visualisation to help make the word problem-solving process more accessible to them.  相似文献   

Shooting motion in high school,collegiate, and professional men’s lacrosse players     

Heather K. Vincent  Cong Chen  Laura A. Zdziarski  Jonathan Montes  Kevin R. Vincent 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(4):448-458

The purposes of this research were to quantify the kinematics of the lacrosse shot, based on arm dominance and player experience level. Male players (N = 39; 14–30 years; high school [n = 24], collegiate [n = 9], professional [n = 6]), performed overhead shots using dominant and non-dominant sides. Motion was captured using a high-speed, 12-camera optical system and high-speed filming. Body segment rotational velocities and joint angles were determined at key points in the shot cycle from foot contact (0% of shot) to ball release (100% of shot). All players shot with less anterior trunk lean, less transverse shoulder rotation, and slower trunk-shoulder rotational velocities with the non-dominant side than the dominant side (all p < 0.05). Professional players produced crosse angular velocities 21% faster than high school or collegiate players (p < 0.05). Transverse shoulder rotation range of motion on both dominant and non-dominant and trunk rotation sides was highest in the professional players (p < 0.05). These kinematic features enable professional players to produce faster ball speeds than younger players (138 ± 7 km/h vs. 112 ± 15 km/h, respectively; p < 0.05). Less anterior lean or suboptimal rotation sequence could increase proximal shoulder forces that could contribute to injury as in other throwing sports.  相似文献   

Gender differences in the relative age effect among US olympic development program youth soccer players     

John Vincent  Francis D. Glamser 《Journal of sports sciences》2013,31(4):405-413

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A comparison of lactate indices during ramp exercise using modelling techniques and conventional methods     

Vincent Thomas  Frédéric Costes  Michel Chatagnon  Jean-Pierre Pouilly 《Journal of sports sciences》2013,31(13):1387-1395

Abstract

The aim of this study was to compare the lactate indices provided by single- and double-breakpoint models with lactate thresholds obtained with conventional methods. Arterial samples for the determination of lactate concentrations were drawn from eight participants at rest and every minute during a ramp test (15 W · min^?1) on a cycle ergometer. Lactate thresholds were determined from a blood lactate concentration equal to 4 mM (LT₄), from an increase of 1 mM above the resting level (Δ1 mM), and from indirect methods using ventilatory parameters. Other indices were computed from the modelling of the lactate curve using an exponential function (LSI), a polynomial function (Dmax), a semi-log model (SLog), a parabola plus delay model (Mod P), and a two-breakpoint model (Mod M). Mod P and Mod M showed poor agreement with the other methods. LT₄, Dmax, LSI, and respiratory exchange ratio equal to 1 were correlated with each other (0.81 ≤ R ≤ 0.92) and their mean differences ranged from 2.8 to 15 W, with limits of agreement within the range ± 24.6 to ± 42.4 W. These results question the interest in breakpoints models to detect lactate thresholds, knowing that LT₄, LSI, Dmax, and respiratory exchange ratio equal to 1 provide indices that occur at similar power outputs.  相似文献