The male of Leptothorax risi Forel, 1892 (Hymenoptera, Formicidae)

The male of the canarian species Leptothorax risi Forel is described. Eight localities are known for this endemic species. Differences from the males of L . hesperius are subtle.Se describe el macho de Leptothorax risi Forel, que difiere muy poco de 10s de L . hesperius. Se conocen ocho localidades para esta especie endémica de Gran Ganaria

Despliegue de una WLAN en la EPSC

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Métodos y técnicas para la recuperación del registro arqueológico: una mirada desde el presente

La renovació metodològica que ha sofert l’arqueologia en els darrers anys ha afavorit l’aparició de noves tècniques i metodologies d’excavació que faciliten una millor gestió del registre arqueològic. Aquest volum recull una sèrie de textos que presenten diversos aspectes metodològics i tenen com a objectiu servir d’introducció a les diverses tècniques abordades: geoarqueologia, fitolits, escàner 3D. El recorregut va de la prospecció arqueològica a les tècniques d’excavació, repassant les diverses metodologies que contribueixen a una millor contextualització i preservació del registre arqueològic.In recent years has been emerged a renewal in archaeological methodology that encouraged the appearance of new techniques that facilitate fieldwork better management of the archaeological record. This volume collects a series of papers that present different methodological aspects and aimed to serve as an introduction to the addressed themes: Geoarchaeology, phytoliths, geological factories, Data matrix codes; 3D scanner. Thus the texts ranging from archaeological survey to the excavation techniques reviewing the different methodologies that contributes to a better contextualization and preservation of the archeological record.La renovación metodológica que ha surgido en los últimos años en el ámbito de la arqueología prehistórica ha favorecido la aparición de nuevas técnicas y estrategias de excavación que facilitan una mejor comprensión del registro arqueológico. Este volumen recopila una serie de textos que presentan diferentes aspectos metodológicos, cuyo objetivo es servir como introducción de los diferentes técnicas abordadas: geoarqueología, fitolitos, escáner 3D. El recorrido discurre desde la prospección arqueológica hasta las sistemáticas de excavación, repasando las diferentes metodologías que contribuyen a una mejor contextualización y preservación de los restos recuperados

Despliegue de una WLAN en la EPSC

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Temporal demands of elite fencing

© 2023 Tarrago´ et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, https://creativecommons.org/licenses/by/4.0/There is no published study that analyses the temporal demands of fencing, in its six Olympic modalities in the same high-level competition. The only existing publications date back decades, with already obsolete regulations, or focus on a specific modality. The aim of this study is to carry out a chronometric analysis of elite fencing at the 2014 Fencing World Championships to determine the existence of differences between its weapons (épée, foil and sabre) and between genders. A total of 96 elite fencers (48 women) of 24 different nationalities were analysed in the final rounds (direct elimination). We undertook observational methodology based on an open and systematic process with ideographic, point and multi-dimensional design. We analysed the work time, rest time, total time, number of stops and work-to-rest ratio. The Lince software was used to record and analyse video data. The coding and recording process of the 83 fights analysed generated a matrix of 5900 records. The quality of the data was verified by checking the validity of the observation instrument and the intraobserver reliability. The mean work time (between Allez and Halte) was 17.9 ± 3.1 s for épée, 5.8 ± 2.5 s for foil and 1 .7 ± 0.4 s for sabre. The fight work-to-rest ratios recorded were 1:0.9, 1:2.6 and 1:9.2 for épée, foil and sabre respectively. The results showed significant differences (p < .05) in the work and rest times between the three fencing weapons. However, there were no differences between fencers of the same weapon according to gender.Peer reviewe