Search results for "SD"
showing 10 items of 20459 documents
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 …
Fonction de production, productivité et progrès technique à l'hôpital : une étude statistique par catégories d'établissements
1983
Notre propos et l'objet de la recherche qui le sous tend ne sont ni polémiques, ni théoriques, mais simplement statistiques, et donc se situent en deçà du débat évoqué, tout en contribuant à 1'éclairer. Quel est le rôle de la main-d1 oeuvre dans la production hospitalière ? Quelle est l'incidence de la spécialisation du travail sur l'évolution de la main-d'oeuvre ? Quel est l'impact conjugé du progrès technique et de l'humanisation des conditions de soins et d'hébergement sur la combinaison des facteurs de production à l'hôpital ? Y-a-t-il complémentarité ou substitution entre la main-d'oeuvre et le capital technique ? Peut-on apprécier l'existence de rendements d'échelle ? La réponse à ces…
Amor y misoginia. A propósito de "amor fou" de Marta Sanz
2019
En este breve texto abordamos una aproximación a las relaciones amorosas, la misoginia romántica y su vinculación con las relaciones asimétricas de género en sociedades occidentales contemporáneas, a partir del análisis discursivo de la novela Amor Fou de la escritora Marta Sanz (2018). Todo discurso narrativo imaginado es, simultáneamente, producto de la realidad social e histórica en la que se inscribe y productor de las representaciones simbólicas hegemónicas que sustentan relaciones instituidas de desigualdad entre los distintos agentes sociales. Desde esta perspectiva, el análisis que proponemos de esta ficción narrativa se inscribe en el cruce de algunas renovaciones epistemológicas y…
Effect of an insect growth regulator (halofenozide) on the cuticular hydrocarbons of Culex pipiens larvae
2013
The cuticular hydrocarbons of the fourth-instar larvae of Culex pipiens aged one and six days were analysed by gas chromatography and gas chromatography-mass spectrometry. The effect of an insect growth regulator (halofenozide = RH-0345) on the cuticular hydrocarbons was evaluated using newly moulted fourth-instar larvae of C. pipiens, at the lethal concentrations (LC50 = 12.58 and LC90 = 28.58 mu g/l). A previous study revealed that RH-0345 is toxic to larvae of C. pipiens by induction of precocious larval moulting. Several cuticular hydrocarbons (CHCs) were identified and many of the other compounds remained unknown. Our data show that the CHC classes consisted of n-alkanes (C23-C29) and …
Appel à projets ANR Ecophyto – Maturation : Biocontrôle / OAD. Site internet Ecophyto
2020
Sous l’impulsion des Ministères de l’Enseignement Supérieur de la Recherche et de l’Innovation, de l’Agriculture et de l’Alimentation, de la Transition Ecologique et Solidaire, des Solidarités et de la Santé et dans le cadre du Plan Ecophyto, l’ANR lance un appel « Ecophyto - Maturation » en cofinancement avec l’AFB (Agence Française pour la Biodiversité). Il s’adresse à des consortiums composés d’équipes issues d’organismes de recherche et d’entreprises.Cet appel vise à soutenir le développement de produits, technologies ou services permettant d’atteindre un niveau de maturité technologique supérieur ou égal à 5, afin de proposer des solutions innovantes et durables pour contribuer à la ré…
Kriminālatbildība par nelikumīgām darbībām ar automatizētām datu apstrādes sistēmas resursu ietekmēšanas ierīcēm un tās sistēmas traucēšanu
2018
Maģistra darba mērķis ir analizēt kriminālatbildību par automatizētas datu apstrādes sistēmas ietekmēšanas ierīcēm un darbības, kas var ietekmēt sistēmu. Lai sasniegtu pētāmā darba mērķi, tiek apskatīts kibernozieguma institūta starptautiskais regulējuma saturs, analizēti iemesli kibernozieguma institūta straujai attīstībai krimināltiesību nozarē. Analizēti Krimināllikuma 243.-244.pantā paredzētie noziedzīgā nodarījuma sastāvi, konstatētas problēmas Krimināllikuma 243.-244.pantu piemērošanai un piedāvāti risinājumi šo noziedzīgo nodarījumu kvalifikācijai un norobežošanai no citiem noziedzīgiem nodarījumiem, kas paveikti automatizētās datu apstrādes sistēmās, salīdzināti un analizēti ārvalst…
Concorsi interni e riparto di giurisdizione
2003
Il contributo analizza il problematico inquadramento sistematico dei concorsi riservati al personale interno per gli avanzamenti di carriera (progressioni verticali), con particolare riferimento alla tutela giurisdizionale, se riservata al giudice amministrativo ovvero, in linea con il processo di privatizzazione del pubblico impiego, al giudice ordinario.
Does oral health affect food comfortability and bolus properties during consumption of dairy products in elderly population?
2017
The elderly population is growing increasingly. In 2030, 1/3 of the population will be over 60 years old. However this population has specific nutritional needs and often, oral impairments such as loss of tooth and/or decrease of salivary flow. Therefore it is necessary to develop foods adapted for the elderly, in terms of organoleptic properties and nutritional composition. In this context, the purpose of this work is to study the impact of oral impairments of elderly persons on food comfortability and bolus properties during the consumption of dairy products.76 elderly persons (ages 66 to 88, 42 women and 34 men), with or without oral health problems in terms of dental and/or salivary sta…
Molecular mechanisms underlying proteins-membrane interaction
Cancer invasion ad metastasis: discovering new targets for diagnosis and therapeutics
2009
Cancer invasion and metastases are the hallmarks of malignant tumors and the cause of most cancer deaths. Molecular alterations that arise during cancer progression and that generate abnormal gene products, activated signal transduction pathways, and altered cancer cell-host stroma interactions can be considered targets of therapeutic drugs. Some of these drugs have already entered clinical trials, while others have shown promising results. In this review, we examine some of the successive steps of the metastatic process: cancer cell migration and invasion of the tumor microenvironment, angiogenesis and following extravasation focusing on the deranged signalling pathways underlying the mali…