Factibilitat d'una explotació agropecuària a Kuche

Postprint (published version

The interrelationship between the demands of Corporate Social Responsibility and co-operative principles and values

Corporate Social Responsibility (CSR) and its integrated management in companies is leading to a new company model that willingly expands its concerns by giving equal consideration to economic, social and environmental aspects. Cooperative societies, in paying attention to the principles and values that define them, as shown in this work, are demonstrating that there is a close interrelationship with the basic demands of CSR, which can be a competitive advantage as long as it is driven by a strategy that leads to its integrated management. The singular structure and democratic composition of a cooperative’s management structure can guarantee the total integration of stakeholders in the decision-making process, as they are often not only owners, but also clients, suppliers and employees.Corporate Social Responsibility, management, interest groups, cooperatives, stakeholders.

Pollinator attractiveness of five weeds

The number of pollinators in agro-ecosystems world wide has declined alarminglyin recent decades due to poora gricultural practices such as the intensive use of pesticides and monocultures.Postprint (published version

Helicoverpa armigera (hübner) (Lepidoptera. Noctuidae): emergencia primaveral de adultos y capturas en trampas de feromonas

Peer Reviewe

Emociones y salud

En este articulo se plantea la relación entre las emociones humanas y la salud. Se explica que las emociones no influyen en la salud a través de un unico mecanisrno, sino quepueden ejercer esta influencia de varias maneras distintas que, además, inciden en diferentes momentos delproceso de enfermar. De esta manera se muestra que: a) las emociones negativas constituyen un riesgo para la salud; b) los estados emocionales crònicos afectan a los hábitos de salud; c) los episodios emocionales agudos pueden agravar ciertas enfermedades; y d) las emociones pueden distorsionar la conducta de los enfermos. Finalmente, se expone la necesidad de la investigación sistemática sobre los procesos psicológicos de las emociones y sepropone un modelo de laboratori0 basado en el concepto de interrupción de conducta para el estudio de los cambios en potenciales evocados cerebrales, expectativas, respuestas vegetativas y conducta que configuran los estados emocionalesThis article examines the relationship between human emotions and health. It is argued that emotions do not influence health in a single way but in many different ways. What is more, this health-emotion connection can occur in different moments along the illness process. Four points are mentioned a) negative emotions can be an important health risk; c) chronic emotional states change health practices; c) acute emotions could affect illness' severity and chronicity; and d) emotions, specially anxiety, can alter sick paple behaviour. Finally we claim the need of progress in research on psychological processes of emotions and suggest a laboratory model based on behaviour break-in to study changes in brain evokedpotentials, expectations, vegetative responses and behaviour which form emotional state

Attracting Contributions to your GitHub Project

International audienceMost Open Source Software projects can only progress thanks to developers willing to voluntarily contribute. Therefore, their vitality and success largely depend on their ability to attract developers. Code hosting platforms like GitHub aim at making software development more collabo-rative and attractive for contributors by providing facilities such as issue-tracking, code review or team management on top of a Git repository following a pull-based model to handle external contributions. We study whether the use of these facilities actually help to get more contributions based on a quantitative analysis over a dataset composed by all the GitHub projects created in the last two years. We discovered that most projects actually ignore them and that, those that don't, do not advance faster either. A manual analysis of the most successful projects suggests that other factors like clear description of the contribution and gover-nance rules for the project have a greater impact

Assessing the bus factor of Git repositories

International audience—Software development projects face a lot of risks (requirements inflation, poor scheduling, technical problems, etc.). Underestimating those risks may put in danger the project success. One of the most critical risks is the employee turnover, that is the risk of key personnel leaving the project. A good indicator to evaluate this risk is to measure the concentration of information in individual developers. This is also popularly known as the bus factor (" number of key developers who would need to be incapacitated, i.e. hit by a bus, to make a project unable to proceed "). Despite the simplicity of the concept, calculating the actual bus factor for specific projects can quickly turn into an error-prone and time-consuming activity as soon as the size of the project and development team increase. In order to help project managers to assess the bus factor of their projects, in this paper we present a tool that, given a Git-based repository, automatically measures the bus factor for any file, directory and branch in the repository and for the project itself. You can also simulate with the tool what would happen to the project (e.g., which files would become orphans) if one or more developers disappeared

Spatial and temporal stability of weed patches in cereal fields under direct drilling and harrow tillage

The adoption of conservation agriculture (CA) techniques by farmers is changing the dynamics of weed communities in cereal fields and so potentially their spatial distribution. These changes can challenge the use of site-specific weed control, which is based on the accurate location of weed patches for spraying. We studied the effect of two types of CA (direct drilling and harrow-tilled to 20 cm) on weed patches in a three-year survey in four direct-drilled and three harrow-tilled commercial fields in Catalonia (North-eastern Spain). The area of the ground covered by weeds (hereafter called “weed cover”) was estimated at 96 to 122 points measured in each year in each field, in 50 cm × 50 cm quadrats placed in a 10 m × 10 m grid in spring. Bromus diandrus, Lolium rigidum, and Papaver rhoeas were the main weed species. The weed cover and degree of aggregation for all species varied both between and within fields, regardless of the kind of tillage. Under both forms of soil management all three were aggregated in elongated patterns in the direction of traffic. Bromus was generally more aggregated than Lolium, and both were more aggregated than Papaver. Patches were stable over time for only two harrow-tilled fields with Lolium and one direct-drilled field with Bromus, but not in the other fields. Spatial stability of the weeds was more pronounced in the direction of traffic. Herbicide applications, crop rotation, and traffic seem to affect weed populations strongly within fields, regardless of the soil management. We conclude that site-specific herbicides can be applied to control these species because they are aggregated, although the patches would have to be identified afresh in each season.This research was funded by the Spanish National Program (project: AGL2010-22084-C02-0). A.E.M. was funded by the Institute Strategic Programme (ISP) grants, “Soils to Nutrition” (S2N) grant number BBS/E/C/000I0330, and the joint Natural Environment Research Council (NERC) and Biotechnology and Biological Sciences Research Council (BBSRC) ISP grant “Achieving Sustainable Agricultural Systems” (ASSIST) grant number BBS/E/C/000I0100, using facilities funded by the BBSRC