Economic Performance of Pre-Crops in a Three-Year Rotation Program for Organic Vegetable Production

A four year experiment is being carried out, at Ege University Department of Horticulture, in which three different pre-crops are tested under an organic management system as compared to fallow. The aim of the experiment is to identify the most suitable rotation program for organic vegetable production in Turkey. Vicia sativa (common vetch), Brassica oleracea var. italica (broccoli), Vicia faba ‘Sevilla’ (faba bean) and fallow are tested as preceding (winter) crops. During the experiment carried out between 2007 and 2009, the main crops were tomato (2007), zucchini (2008) and pepper (2009). Broccoli represented the farmers’ choice as a winter vegetable. Vetch (incorporated) and faba bean (partially harvested and incorporated) were selected as legumes well adapted to the regional conditions. Soil fertility was maintained by incorporation of the crop residues at the end of both cycles and addition of organic-certified commercial compost (Bioaktif) and compost tea during the main cycle. All the management, including disease and pest management, was carried out according to the organic regulations valid in Turkey and the EU. During the production seasons, all variable costs and revenue, during both the pre-crop and main crop cycles, were recorded and gross margin calculated for each treatment. Economic analysis showed that broccoli as a pre-crop required the highest variable costs followed by faba bean, vetch and fallow, in all three years. Total revenue was the highest in plots where broccoli was the pre-crop. It is followed by faba bean plots mostly because higher yields were obtained in main crop plots following faba bean. The least profitable was fallow – main crop rotation. Broccoli plants also have some extra benefits like adding a high amount of biomass to soil and suppressing weed growth due to shading and allelopathic effects

Results of the MAJORANA DEMONSTRATOR's Search for Double-Beta Decay of 76Ge to Excited States of 76Se

The MAJORANA DEMONSTRATOR is searching for double-beta decay of 76Ge to excited states (E.S.) in 76Se using a modular array of high purity Germanium detectors. 76Ge can decay into three E.S.s of 76Se. The E.S. decays have a clear event signature consisting of a ββ-decay with the prompt emission of one or two γ-rays, resulting in with high probability in a multi-site event. The granularity of the DEMONSTRATOR detector array enables powerful discrimination of this event signature from backgrounds. Using 21.3 kg-y of isotopic exposure, the DEMONSTRATOR has set world leading limits for each E.S. decay, with 90% CL lower half-life limits in the range of (0.56 2.1) ⋅ 1024 y. In particular, for the 2v transition to the first 0+ E.S. of 76Se, a lower half-life limit of 0.68 ⋅ 1024 at 90% CL was achieved

ADC Nonlinearity Correction for the Majorana Demonstrator

Imperfections in analog-to-digital conversion (ADC) cannot be ignored when signal digitization requirements demand both wide dynamic range and high resolution, as is the case for the Majorana Demonstrator 76Ge neutrinoless double-beta decay search. Enabling the experiment's high-resolution spectral analysis and efficient pulse shape discrimination required careful measurement and correction of ADC nonlinearities. A simple measurement protocol was developed that did not require sophisticated equipment or lengthy data-taking campaigns. A slope-dependent hysteresis was observed and characterized. A correction applied to digitized waveforms prior to signal processing reduced the differential and integral nonlinearities by an order of magnitude, eliminating these as dominant contributions to the systematic energy uncertainty at the double-beta decay Q value

Nurses' perceptions of aids and obstacles to the provision of optimal end of life care in ICU

Contains fulltext : 172380.pdf (publisher's version ) (Open Access

Jean-Claude DOMENGET, Bernard MIÈGE et Nicolas PÉLISSIER (dir.) (2017), Temps et temporalités en information-communication : des concepts aux méthodes

Cet ouvrage collectif est le quatrième volume issu des travaux du XXe congrès de la Société française des sciences de l’information et de la communication (SFSIC), tenu en juin 2016 sur le temps, les temporalités et les sciences de l’information et de la communication (SIC) et qui s’est déroulé à l’Université de Lorraine (Metz) en partenariat avec le Centre de recherche sur la médiation (CREM). Ce dernier recueil de travaux s’interroge sur les transformations induites par les temporalités, lo..

TIC et apprentissage de l'interculturalité

This thesis has aimed at conducting experimentally informed reflection on the role or the function of ICT in the process of acquisition of LE and learning of multiculturalism and openness to the other. It also aims to evaluate the potential of students’ acquisitionnel in knowledge, skills, communication and openness to other cultures. The research supported by this problem is also related to the role of ICT in the learning process in primary school: To what extent these new technologies involved in developing young people's skills in the field of French language and intercultural? ICT allow for simulations of various phenomena (physical, historical ...), they provide students with very diverse ways to realize the skills and knowledge they can develop while awakening their curiosity and motivation. Field research is based on two concrete learning experience language and French culture through networking school in various Francophone countries each using ICT. The method of work based on the observation of the practices of students and their evolution in the knowledge of the other where interculturalism , an analysis of web site content , surveys by semi -structured interviews and questionnaire with students and teachers.Cette thèse de doctorat a pour finalité de conduire une réflexion informée expérimentalement sur le rôle, voire sur la fonction des TIC dans le processus d’acquisition de L.E et sur l’apprentissage de l’interculturalité et l’ouverture à l’autre. Elle vise également à évaluer le potentiel acquisitionnel des élèves en matière de connaissances, de compétences, de communication et d’ouverture à d’autres cultures. La problématique soutenue par cette recherche est également en rapport avec le rôle que jouent les TIC dans le processus d’apprentissage en milieu scolaire primaire : Dans quelle mesure ces nouvelles technologies participent au développement des compétences des jeunes en matière de langue française et d'interculturalité ? Les TIC permettent de faire des simulations de divers phénomènes (physiques, historiques…), elles offrent aux élèves des moyens très diversifiés de se rendre compte des compétences et des connaissances qu’ils peuvent développer tout en réveillant leur curiosité ainsi que leur motivation. Le terrain de recherche est basé sur deux expérience concrètes de formation à la langue et à la culture française par la mise en réseau d'établissement scolaire dans différents pays francophones utilisant chacune les TIC. La méthode du travail repose sur l'observation des pratiques des élèves et leur évolution dans la connaissance de l'autre d'où l'interculturalité, une analyse de contenu de site web, des enquêtes par entretiens semi-directifs ainsi que par questionnaire auprès des élèves et des enseignants

L’interopérabilité culturelle et l’interculturalité

The author presents an example of interoperability centred around cultural dimensions marked by cultural differences and cultural openness. Within this intercultural world where information and communications technology is now a significant evolutionary factor integrated with knowledge sharing, interoperability and cooperation underpin our ability to collaboratively mobilize, understand the value of cultural diversity, ensure the interoperability of systems and internal and external norms, and establish an effective and lasting framework for sharing good practices