Search results for "Production"
showing 10 items of 7600 documents
Deuteron and anti-deuteron production in e+ e- collisions at the Z resonance
2006
Deuteron and anti-deuteron production in Z decays has been observed in the ALEPH experiment at LEP. The production rate of anti-deuterons is measured to be per hadronic Z decay in the anti-deuteron momentum range from 0.62 to 1.03 GeV/c. The coalescence parameter , which characterizes the likelihood of anti-deuteron production, is measured to be in Z decays. These measurements indicate that the production of anti-deuterons is suppressed in collisions compared to that in pp and photoproduction collisions
Compte rendu de : Owen White, The blood of the colony. Wine and the Rise and Fall of French Algeria, Cambridge Massachusetts, London, Harvard Univers…
2021
International audience
Matthieu Lecoutre, Atlas historique du vin en France. De l’Antiquité à nos jours, préface de Jean-Robert Pitte, Paris, Éditions Autrement, 2019, 95 p.
2020
International audience
Effect of Mycoplasma agalactiae mastitis on milk production and composition in Valle dell Belice dairy sheep
2019
Contagious agalactia (CA), a disease caused by Mycoplasma agalactiae and other pathogenic mycoplasmas, is a well-known multietiological syndrome affecting dairy breeds of sheep and goats in the Mediterranean basin. The aim of this work was to study the effect on milk production and composition of mastitis caused by M. agalactiae in Valle del Belice dairy sheep. All ewes were manually milked twice daily and the milk from both daily milking was analysed for milk composition and somatic cell counts. Moreover the morning milk samples were collected aseptically from each animal for bacteriological analyses. A mixed linear model was utilised to consider milk production and composition between ani…
Mud volcanoes as key-systems to investigate continental degassing and therole of seismicity on mass transfer
2018
The flow of fluids into the Earth’s crust can produce large-scale heat and mass transport. The mechanisms and driving forces for this fluid-transport range from molecular diffusion, to grain boundary diffusion and to advective flow. Recent studies [Torgersen,2010 and references therein] suggest that largescale vertical transport of fluids in the continental crust is likely advective and episodic. So it is crucial to understand if the variability of the measured degassing flux is a reflection of this episodic and advective transport. Here we try to answer these questions by using the noble gases. In particularly He that is recognized as a powerful tracer in variousfields, such as hydrology, …
Winter male plumage coloration correlates with breeding status in a cooperative breeding species
2007
The function of colored ornaments is usually related to the signaling of individual quality in intra- and intersexual interactions. In cooperative breeding species, where only a fraction of the male population access the breeding status and the other fraction has the option to help breeding pairs, colored traits might provide the females with a reliable information on the quality of potential mate. Males of the cooperative breeding azure-winged magpies (Cyanopica cyanus) display conspicuous blue plumage coloration. Here we explored the role played by structural blue coloration of males and the probability of becoming a breeder or a helper. Birds were trapped during 4 consecutive years, and …
Probing the origin of ultra-high-energy cosmic rays with neutrinos in the EeV energy range using the Pierre Auger Observatory
2019
Neutrinos with energies above 1017 eV are detectable with the Surface Detector Array of the Pierre Auger Observatory. The identification is efficiently performed for neutrinos of all flavors interacting in the atmosphere at large zenith angles, as well as for Earth-skimming τ neutrinos with nearly tangential trajectories relative to the Earth. No neutrino candidates were found in ∼ 14.7 years of data taken up to 31 August 2018. This leads to restrictive upper bounds on their flux. The 90% C.L. single-flavor limit to the diffuse flux of ultra-high-energy neutrinos with an Eν -2 spectrum in the energy range 1.0 × 1017 eV -2.5 × 1019 eV is E2 dNν/dEν < 4.4 × 10-9 GeV cm-2 s-1 sr-1, placing str…
Production et commerce, quelques aspects dans le nord de la Gaule romaine (Ier-IIIe siècle de notre ère)
2023
L’étude de l’économie de la Gaule romaine par les archéologues a traditionnellement privilégié l’analyse des lieux de production agricole et artisanale, ainsi que la diffusion des produits manufacturés. La large diffusion de produits à l’échelle du bassin méditerranéen et jusque dans les provinces septentrionales de l’Empire, voire en dehors, suggère une économie ouverte aux échanges à longue distance. Les recherches montrent cependant que la diffusion n’atteint jamais la totalité de l’Empire, voire du Bassin méditerranéen, si ce n’est de manière marginale. Par ailleurs, à l’écart des rivages de la Méditerranée, l’examen des mobiliers provenant de sites d’habitat conduit à nuancer la place …
Imperial straightening devices in disciplinary choices of academic knowledge production
2021
Abstract In this piece, the authors question whether critical language research, in its complex collection of researcher choices, is possible beyond the discursive imaginary of critical academic scholarship. In other words, how do (allegedly) anticolonial efforts re-orient towards contribution to the imperial record? We present three vignettes, through which we grapple with the notion that researcher choice exists within the solipsism of academia. In doing so, we frame research and scholarship as a collection of choices, which we believe are better understood as a collection of fraught dilemmas. These dilemmas recognize that all academic scholarship production and its processes are birthed …
The dynamics of personal norms and the determinants of cultural homogeneity
2017
This article studies the emergence of cultural homogeneity in personal norms when the behavior of heterogeneous individuals is driven both by economic incentives and by personal norms. Agents participate in a team production game by choosing their level of costly effort. Norms evolve along the life cycle of the individuals according to two psychological forces: cognitive dissonance or consistency and informational conformity. The model sheds light on how primitive economic and behavioral parameters such as the distribution of skills, the income distribution, and the levels of materialism, conformism, and consistency in the group determine the long-run culture and its degree of cultural homo…