Search results for "production [meson]"
showing 10 items of 174 documents
"Table 39" of "Measurements of Higgs boson properties in the diphoton decay channel with 36 fb$^{-1}$ of $pp$ collision data at $\sqrt{s} = 13$ TeV w…
2019
Best-fit values and uncertainties of the simplified template cross sections times branching ratio.
Una nota sobre crisis y estratificación social
2012
La crisis actual ha creado un colectivo específico de personas en riesgo de caer en la exclusión social. Básicamente se trata de jóvenes e inmigrantes. En ambos casos se agrava cuando coincide con escasa formación y cargas familiares. Su futuro es más que incierto y cabe predecir que la sociedad tardará en encontrarles acomodo pues ni el actual modelo productivo, ni el que pueda sustituirlo, van a generar empleo para esos perfiles. Pero es que tampoco el actual modelo de protección social, lento en sus reacciones y sesgado en favor de currícula laborales estables y continuados, les dará cobertura suficiente. La E.P.A. nos permite una aproximación al problema desde el ejemplo de la Comunidad…
The beta-delayed proton and gamma decay of 27P for nuclear astrophysics
2013
The creation site of 26Al is still under debate. It is thought to be produced in hydrogen burning and in explosive helium burning in novae and supernovae, and possibly also in the H-burning in outer shells of red giant stars. Also, the reactions for its creation or destruction are not completely known. When 26Al is created in novae, the reaction chain is: 24Mg(p, γ) 25Al(β +ν) 25Mg(p, γ) 26Al, but this chain can be by-passed by another chain, 25Al(p, γ) 26Si(p, γ) 27P and it can also be destroyed directly. The reaction 26mAl(p, γ) 27Si∗ is another avenue to bypass the production of 26Al and it is dominated by resonant capture. We find and study these resonances by an indirect method, throug…
Exclusive J=ψ Photoproduction off Protons in Ultraperipheral p-Pb Collisions at √sNN = 5.02 TeV
2014
Pion photo- and electroproduction on nucleons in relativistic chiral perturbation theory
2022
En esta tesis, hemos estudiado la producción de piones mediante pruebas electromagnéticas en nucleones. Para cada uno de los estudios realizados aquí, nos enfocamos en la Teoría Quiral de Perturbaciones (ChPT) relativista para hadrones ligeros: nucleones, piones y los grados de libertad explícitos Delta. Para preservar la covariancia de la teoría, se implementó el método de renormalización en el esquema Extended On Mass Shell (EOMS). En este caso, las divergencias y los términos que violan el conteo de potencias se absorben en las constantes de baja energía (LECs) del Lagrangiano efectivo. El presente trabajo se desarrolló dentro de tres estudios principales relacionados con la producción d…
Peut-on concilier un faible usage de pesticides, une bonne performance économique et environnementale ? Analyse d’un réseau national de fermes de dém…
2017
Feeding an increasing world population with a sustainable agriculture is one of the greatest challenges of this century. The reduction of the reliance on pesticides is a critical aspect in this quest for sustainability. Whether cropping systems with reduced reliance on pesticides would be able to reconcile the various components of sustainability remains however a matter of debate. Are they as productive and profitable than current mainstream cropping systems? Here the objective is to study the feasibility of a reduced reliance on pesticides in France. We used a unique dataset from a national network of more than thousand arable commercial farms between 2009 and 2011. Launched in the framew…
Analysing the relationship between yields and farmers' incomes to help the design of more sustainable cropping systems
2022
Farmers often grow only the few high-yielding crops in the area, and target maximum yields through high levels of inputs. These practices are based on the assumption of a positive relationship between productivity and profitability over a wide range of cropping systems (Woo et al., 2020; Erythrina et al., 2021). Part of the correlation between productivity and profitability could be related to differences in production situation and therefore yield potential, i.e. characteristics that do not depend on farmers’ decisions. For a given production situation, the systems with the highest profitability and the best environmental sustainability could be systems with moderate yields. The objective …
The reactivity of neonatal rabbits to the mammary pheromone as a probe for viability
2012
International audience; Newborn rabbits depend on a daily nursing interaction with the mother to gain milk and to survive. During this interaction, they localise and seize the nipples displaying a typical behaviour triggered by maternal odour cues. The mammary pheromone constitutes such a signal in domestic rabbits: it elicits sucking-related movements in more than 90% of the pups. However, some newborns remain unresponsive to the presentation of the pheromone, even pups apparently healthy and highly motivated to suck. The main goal of the present study was therefore to explore the link between the unresponsiveness of rabbit pups to the mammary pheromone and their growth and survival in bre…
“Reclaiming public spaces”: Individuazione di strategie e metodi per la partecipazione della cittadinanza attiva nella produzione e gestione di spazi…
2014
A partire dall’analisi di due casi studio di (ri)appropriazione e riconversione temporanea a fini “pubblici” di aree inutilizzate, quali le appropriazioni/(ri)appropriazioni dell’ex-aeroporto di Tempelhof a Berlino e del “laghetto” in via Prenestina a Roma, l’articolo si propone di esplorare alcuni interrogativi quali: E’ possibile costituire una alternativa reale alla riduzione/sostituzione dello spazio pubblico, dovuta in gran parte ai problemi di bilancio che minacciano l’operatività delle amministrazioni locali, valorizzando le esperienze di auto-organizzazione, auto-gestione e partecipazione emerse nelle nostre città? Come interpretare/tradurre in strategie e metodi operativi la pressa…
Impact of supplier-specific investments in inter-organisational information systems on strategic electronic coordination: the moderation effect of bu…
2018
Abstract This paper examines the factors which influence sharing of the strategic information (in other words, electronic coordination) in a buyer–supplier dyad. The antecedents of this coordination are examined rather well in the transaction cost economics (TCE) theory and resource-dependency theory (RDT), while the supply chain management perspective is contemplated. The mentioned frameworks are used in the analysis. However, the research focus is narrowed down to the exploration of the antecedents of information exchange conducted via inter-organisational information systems (IOS). The empirical analysis is based on 198 observations of Norwegian companies operating in different types of …