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1.
For the last 60 years, varnishes of ancient musical instruments, particularly stringed instruments of the violin family dating 17th and 18th centuries, have been analysed to establish their chemical composition and multi-layered structure. The objective was to rediscover the technology for making the varnish of esteemed Italian violins and to reconstitute it. This paper reviews the physico-chemical studies published on such varnishes and also focuses on a research project carried out since 2002 at the Musée de la musique in Paris. It aims to apply in a comprehensive way different non-destructive or micro destructive methods (Py-GC/MS, IR microscopy, SEM/EDX, EDXRF, synchrotron radiation-based techniques, …) to the study of a large and representative number of ancient varnished musical instruments from a museum collection. 相似文献
2.
Jeremie M. Carreau Grégoire Bosselut Stephen D. Ritchie Jean-Philippe Heuzé Scott Arppe 《Journal of Adventure Education & Outdoor Learning》2016,16(3):191-205
This exploratory study was conducted to illuminate aspects relevant to the emergence and evolution of informal roles in a group during a canoe expedition. Following tenets of ethnography, the first author collected observational and interview (conversational and focus group) data while participating as a member of the expedition. Three general dimensions were revealed with regards to emerging and evolving informal roles: context aspects; role occupant aspects; and group member aspects. Informal roles were found to be important structural components which contributed to group productivity and harmony. Findings are discussed in relation to the broader literature while questions are raised regarding how informal roles have been conceptualized. Implications include considering how informal roles relate to individual (e.g. satisfaction) and group (e.g. cohesion) level constructs and how outdoor leaders may benefit from understanding how informal roles emerge and evolve. 相似文献
3.
Douyère M Soualmia LF Névéol A Rogozan A Dahamna B Leroy JP Thirion B Darmoni SJ 《Health information and libraries journal》2004,21(4):253-261
The amount of health information available on the Internet is considerable. In this context, several health gateways have been developed. Among them, CISMeF (Catalogue and Index of Health Resources in French) was designed to catalogue and index health resources in French. The goal of this article is to describe the various enhancements to the MeSH thesaurus developed by the CISMeF team to adapt this terminology to the broader field of health Internet resources instead of scientific articles for the medline bibliographic database. CISMeF uses two standard tools for organizing information: the MeSH thesaurus and several metadata element sets, in particular the Dublin Core metadata format. The heterogeneity of Internet health resources led the CISMeF team to enhance the MeSH thesaurus with the introduction of two new concepts, respectively, resource types and metaterms. CISMeF resource types are a generalization of the publication types of medline. A resource type describes the nature of the resource and MeSH keyword/qualifier pairs describe the subject of the resource. A metaterm is generally a medical specialty or a biological science, which has semantic links with one or more MeSH keywords, qualifiers and resource types. The CISMeF terminology is exploited for several tasks: resource indexing performed manually, resource categorization performed automatically, visualization and navigation through the concept hierarchies and information retrieval using the Doc'CISMeF search engine. The CISMeF health gateway uses several MeSH thesaurus enhancements to optimize information retrieval, hierarchy navigation and automatic indexing. 相似文献
4.
Despite the potential benefits of cooperative learning at university, its implementation is challenging. Here, we propose a theory-based 90-min intervention with 185 first-year psychology students in the challenging domain of statistics, consisting of an exercise phase and an individual learning post-test. We compared three conditions that manipulated the exercise phase: individual work, cooperative dyadic instructions (structuring three basic components of cooperative learning: positive goal interdependence, individual responsibility and promotive interactions) and cooperative dyadic interactions (the three basic components with an additional cooperative nudge, namely explaining why and how to cooperate in this task) in order to test whether a progressive increase in benefits occurs as the cooperative structure is reinforced. Results indicated a linear trend in individual post-test learning and competence perception, from individual work to cooperative instructions to cooperative interactions. Competence perception mediated the effect of experimental conditions on learning. The results highlight the benefits of the cooperative nudge. 相似文献
5.
AbstractThe objective of the study was to describe an original approach to assessing individual workload during international rugby union competitions. The difference between positional groups and between the two halves was explored. Sixty-seven files from 30 French international rugby union players were assessed on a computerised player-tracking system (Amisco Pro®, Sport Universal Process, Nice, France) during five international games. Each player’s action was split up into exercise and recovery periods according to his individual velocity threshold. Exercise-to-recovery (E:R) period ratios and acceleration were calculated. Results indicated that about 65% of exercise periods lasted less than 4 s; half of the E:Rs were less than 1:4, and about one-third ranged between 1 and 1:4 and about 40% of exercise periods were classified as medium intensity. Most acceleration values were less than 3 m·s?2 and started from standing or walking activity. Back row players showed the highest mean acceleration values over the game (P < 0.05). No significant decrease in physical performance was seen between the first and second halves of the games except for back rows, who showed a significant decrease in mean acceleration (P < 0.05). The analysis of results emphasised the specific activity of back rows and tended to suggest that the players’ combinations of action and recovery times were optimal for preventing large decrease in the physical performance. 相似文献
6.
The main aim of this study was to examine mediating effects in the relationships between cohesion, collective efficacy and performance in professional basketball teams. A secondary aim was to examine the correlates of collective efficacy in a professional sport. A total of 154 French and foreign professional players completed French or English versions of questionnaires about cohesion and collective efficacy. Two composite measures of individual performance were used (pre- and post-performance). Individual-level analyses were performed. Regression analyses supported two mediating relationships with collective efficacy as a mediator of the pre-performance - Group integration-task relationship, and Group integration-task as a mediator of the pre-performance - collective efficacy relationship. Statistical analyses indicated that neither Group integration-task nor collective efficacy was a better mediator in the relationship between pre-performance and the other group variables. Results also revealed positive relationships between three dimensions of cohesion (i.e. Individual attractions to the group-task, Group integration-task, Group integration-social) and collective efficacy. These findings suggest that in professional basketball teams, staff members should look after athletes who perform at a lower or below their usual level because their performances might lead them into a downward cohesion - collective efficacy spiral. Staff members should also develop a high quality of group functioning, both on and off the basketball court, given its relationship with collective efficacy. 相似文献
7.
Jean-Philippe Ayotte-Beaudet 《Prospects》2013,43(4):419-427
The author reports on an exploratory study to establish a semantic base for the concept of competence in the French-speaking literature on education. Doing so will make it possible to identify neighbouring concepts or notions that researchers can use to determine definitions and applications for the concept. The research team found only one dimension it could refer to as an invariable criterion, that is, one that is present in all six dimensions of the concept. Further studies need to be conducted to specify a shared vision of the concept of competence, which does not currently exist. 相似文献
8.
Jean-Philippe Accart 《International Information and Library Review》2013,45(4):269-273
AbstractThe recent, important events in the ex-Soviet Union have not only been political. The world of libraries has begun to be opened up and the changes have even reached the most famous institutions, such as, for example, the State Central Scientific Medical Library in Moscow, which is at the head of a network of scientific and research libraries, and has created the first Russian scientific database. This article was written after the congress of the IFLA (International Federation of Librarian Associations) in August 1991. 相似文献
9.
El-Hamamsy Laila Chessel-Lazzarotto Frédérique Bruno Barbara Roy Didier Cahlikova Tereza Chevalier Morgane Parriaux Gabriel Pellet Jean-Philippe Lanarès Jacques Zufferey Jessica Dehler Mondada Francesco 《Education and Information Technologies》2021,26(3):2445-2475
Education and Information Technologies - Integrating computer science (CS) into school curricula has become a worldwide preoccupation. Therefore, we present a CS and Robotics integration model and... 相似文献
10.
Jean-Philippe Antonietti Fabienne Crettaz Von Roten Jean-Philippe Leresche 《Higher Education in Europe》2002,27(3):313-323
This article presents the results of a public opinion survey of the so-called higher institutes in Switzerland, specifically, of two kinds of higher education institutions, the cantonal universities and the Federal polytechnic schools. Conducted in 2000, this survey was the first national survey of its kind to be undertaken in Switzerland. As could be expected given the diversity of Switzerland, there were variations in the results according to linguistic region, the German-speaking population favouring a Humboldtian conception of the University, the French- and Italian-speaking population, a more Napoleonic, service-oriented orientation. There were variations as to education, those not having studied in a higher education institution of the kind being surveyed being more critical than those who had studied in one. All in all, the Swiss have a very utilitarian view of their higher institutes. 相似文献