Search results for "Production"
showing 10 items of 7600 documents
First insights into female sperm storage duration in tardigrades.
2022
Female sperm storage is ubiquitous in the animal kingdom and it has been shown to be linked to several evolutionary processes, from postcopulatory sexual selection to dispersal. Here we report, for the first time, long-term sperm storage in females of the tardigrade Macrobiotus polonicus. Females, isolated after a short contact with a male, were able to use the stored sperm for up to 5 weeks (mean of 2 weeks), which translates to a considerable proportion of female post-mating longevity under controlled laboratory conditions (60% on average). Our study provides the first insights into the duration of sperm storage, an underexplored feature of the reproductive biology of tardigrades. Additio…
La Formation et la Reproduction des capacités humaines dans la pensée de Romano Alquati
2022
L’article traite de l’importance assumée par la question de la formation (de la reproduction à la capacité active vivante), dans la dernière période de Romano Alquati. On aborde également le problème de l’appauvrissement de la subjectivité qui, selon l’auteur, serait provoquée par la numérisation des processus d’éducation. The essays deals with the centrality increasingly assumend by the thems of training (the reproduction of active living working capacity) in the last Alquati, as well as the impoverishment of subjectivities that, according to this author, would occur with the digitation of many educational processes.
Expert Opinion on Three Phage Therapy Related Topics: Bacterial Phage Resistance, Phage Training and Prophages in Bacterial Production Strain
2018
The variable position of Arctic charr (Salvelinus alpinus (L.)) in subarctic lake food webs
2013
History of Spanish research in psychology seen through the scientific journals collected in the Web of Science during the period 2003-2012
2017
Resumen La abundancia y nivel de las publicaciones científicas constituye un indicador de la capacidad, trayectoria y calidad científica de un país, área temática o grupo de investigación. El grado de visibilidad internacional de una revista es un importante indicador sobre su calidad y cada vez es más considerado por las agencias de evaluación de los méritos científicos. Este estudio ofrece un análisis de la evolución de la actividad española en psicología, vista a través de su producción científica en las revistas de psicología recogidas en las bases de datos JCR del SSCI (Social Sciences Citation Index) y del SCI (Science Citation Index) durante 2003-2012. Los resultados indican un creci…
PRODUZIONE DI RIFIUTI A RISCHIO INFETTIVO E INDICI DI COMPLESSITÀ IN UN “CENTRO TRAPIANTI”
2015
Questo studio analizza la produzione di rifiuti a rischio infettivo in una grande struttura ospedaliera specializzata per le attività di trapianto: Ismett (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), che si trova a Palermo. Sono state determinate le relazioni fra la quantità e la composizione dei rifiuti, da una parte; la complessità della struttura e la natura delle cure erogate, dall’altra. In letteratura si trovano regolarmente i risultati di ricerche sulla produzione di rifiuti a rischio infettivo nei più diversi Paesi del mondo; i dati pubblicati provengono quasi esclusivamente da Ospedali Generali, anche complessi e di Alta Specializzazione. Tali dati po…
Stéphane Le Bras, Le négoce des vins en Languedoc. L’emprise du marché, 1900-1970. (Compte-rendu)
2019
préface de Geneviève Gavignaud-Fontaine, Tours, Presses universitaires François-Rabelais, 2019, 495 p.; International audience
La spécialisation des productions et les spécialistes: Une introduction
2018
With the emergence of manufacturing based economies, specialised productions take on new dimensions during the Neolithic. Production networks progressively develop during the Neolithic and the Metal Ages and can be characterised according to their scale, how they are organised, the status of producers and the intensification of the trade of manufactured goods. This results on the one hand in mass production and on the other in the creation of highly technical objects on demand within a complex economic system of consumption and exchange. This is not seen as a linear progression but as a diversification of productions, products and know-how, the chronological and social contextualisation of …
La spécialisation des productions et les spécialistes : Session XXXIV-2 du XVIIIe congrès de l'UISPP
2020
With the emergence of manufacturing based economies, specialised productions take on new dimensions during the Neolithic. Production networks progressively develop during the Neolithic and the Metal Ages and can be characterised according to their scale, how they are organised, the status of producers and the intensification of the trade of manufactured goods. This results on the one hand in mass production and on the other in the creation of highly technical objects on demand within a complex economic system of consumption and exchange. This is not seen as a linear progression but as a diversification of productions, products and know-how, the chronological and social contextualisation of …
Positron production using a 9 MeV electron linac for the GBAR experiment
2020
For the GBAR (Gravitational Behaviour of Antihydrogen at Rest) experiment at CERN's Antiproton Decelerator (AD) facility we have constructed a source of slow positrons, which uses a low-energy electron linear accelerator (linac). The driver linac produces electrons of 9 MeV kinetic energy that create positrons from bremsstrahlung-induced pair production. Staying below 10 MeV ensures no persistent radioactive activation in the target zone and that the radiation level outside the biological shield is safe for public access. An annealed tungsten-mesh assembly placed directly behind the target acts as a positron moderator. The system produces $5\times10^7$ slow positrons per second, a performan…