Search results for "Opera"
showing 10 items of 8665 documents
Construction of quality indicators based on pre-established goals: application to a colombian public university
2020
This study creates indicators of adequacy and excellence based on multiple-criteria decision-making (MCDM) methods and fuzzy logic. The calculation of indicators presents two main difficulties: The nature of the data (numerical, interval, and linguistic values are mixed) and the objective of each criterion (which does not have to reach either the maximum or the minimum). A method is proposed, based on similarity measures with predetermined ideals, that is capable of overcoming these difficulties to provide easy-to-interpret information about the quality of the alternatives. To illustrate the usefulness of this proposed method, it has been applied to data collected from students across nine …
Determining the effects of Eugenol on the bond strength of resin-based restorative materials to dentin : a meta-analysis of the literature
2020
Este artículo se encuentra disponible en la siguiente URL: https://www.mdpi.com/2076-3417/10/3/1070/htm Este artículo pertenece al número especial " Permanent and long-term biodegradable biomaterials". The aim of this study was to determine whether the residual presence of eugenol in coronal dentin may compromise the bond strength of resin-based restorative materials. A search was performed on MEDLINE/Pubmed, Scopus, and by hand search for relevant papers. No restriction was applied for language and publication date. The studies selected for analysis tested specimens with reduced size (micro-shear bond strength ( SBS) and micro-tensile bond strength ( TBS)) of adhesive systems and resin-bas…
Agenti biologici in ambienti di lavoro non sanitari.
2008
Le Linee Guida su rischi specifici redatte dalla Società Italiana di Medicina del Lavoro offrono ai Medici Competenti di tutto il territorio nazionale la possibilità di orientarsi nell'approccio alla sorveglianza sanitaria rivolta a lavoratori esposti a rischi specifici. Il presente volume affronta la problematica del rischio biologico nei vari contesti lavorativi estranei al comparto della Sanità.
Evolution of conflict and cooperation in human groups
2018
The scale of human cooperation and conflict is outstanding and evolutionarily challenging to explain. Cooperative and hostile behaviours have deep evolutionary roots and adaptive functions. However, theoretical models differ in how they explain these functions. Thus, my thesis aims to empirically test functional predictions about human cooperation and conflict. These experiments use a behavioural ecological framework, and pay also attention to the effects of social and developmental environments. In the first two chapters, I studied how group composition affects cooperation and individual success, and how people react to information of each other’s cooperative behaviour. I found that cooper…
A Territorial-driven approach to capture the transformative momentum of the Social Economy especially from the agricultural cooperatives
2021
In the last few lustrums, the literature has searched for more precise methods to assess the socio-economic importance of the Social and Solidarity Economy (SSE). On that basis, this article offers a new way of assessing the SSE impact, enhancing the understanding of the SSE potential for socio-economic transformation. An evolutionary micro–meso–macro and territorial theoretical framework is developed, utilizing, along with the assistance of a qualitative methodology, studies on the transformation promoted by the SSE on the sugar cane cluster of Veracruz (Mexico). The main results of the article are that the SSE boost beneficiaries, while the protagonists of the transformation c…
Cooperation in Managing the Environmental Function in Agriculture as a Condition for Integration of the Borderland Areas of the Czech Republic and Po…
2018
The aim of the study is to justify the need for cooperation in the sphere of managing the environmental function in the agriculture of the borderland areas of Poland and the Czech Republic. Until now, thanks to the so-called “green structure of the Common Agricultural Policy” the environment-related requirements in agriculture have come from the top and have been of the universal character. In the agricultural policy following 2020, it is state governments and multilevel management structures which will have been responsible for programming and implementing environmental and climatic strategies in this sector. In borderland areas, solutions that will be accepted may become a source of confl…
Browsing the information highway while driving: three in-vehicle touch screen scrolling methods and driver distraction
2012
Distraction effects of three alternative touch screen scrolling methods for searching music tracks on a mobile device were studied in a driving simulation experiment with 24 participants. Page-bypage scrolling methods with Buttons or Swipe that better facilitate resumption of visual search following interruptions were expected to lead to more consistent in-vehicle glance durations and thus, on less severe distraction effects than Kinetic scrolling. As predicted, Kinetic scrolling induced decreased visual sampling efficiency and increased visual load compared to Swipe, increased experienced workload compared to both Buttons and Swipe, as well as decreased lane keeping accuracy compared to ba…
Measuring Distraction at the Levels of Tactical and Strategic Control: The Limits of Capacity-Based Measures for Revealing Unsafe Visual Sampling Mod…
2011
The control theory of driving suggests that driver distraction can be analyzed as a breakdown of control at three levels. Common approach for analyzing distraction experimentally is to utilize capacity-based measures to assess distraction at the level of operational control. Three driving simulation experiments with 61 participants were organized to evaluate which kind of measures could be used to analyze drivers' tactical visual sampling models and the related effects of distraction while searching textual information on in-car display. The effects of two different text types were evaluated. The utilized capacity-based measures seemed to be insufficient for revealing participants' tactical…
Factores determinantes del desempeño de las alianzas estratégicas: hallazgos en los consorcios del sector cooperativo costarricense
2015
El tema de los acuerdos de cooperación es relevante como una buena práctica en la dirección de empresas, pero al mismo tiempo su aplicación exitosa no es sencilla, y no está exenta de fracaso. Se hace necesario entonces desarrollar esfuerzos como esta investigación, que pretende aportar al conocimiento sobre las alianzas estratégicas, específicamente en relación con los factores conducentes al buen desempeño de las mismas. Empleamos una metodología de investigación con enfoque cuantitativo, en la cual utilizamos ecuaciones estructurales, por medio de la técnica de análisis por mínimos cuadrados parciales, apropiada en etapas iniciales del desarrollo de teorías, cuando un modelo conceptual y…
Factores determinantes del desempeño de las alianzas estratégicas: el caso de las Uniones y Federaciones del Sector Cooperativo Costarricense
2015
En razón de la importancia de las alianzas estratégicas para las organizaciones, por los beneficios que pueden obtener de ella, pero en contraste con la alta tasa de fracaso en su aplicación, se hace necesario profundizar en el conocimiento del fenómeno con el fin de que las empresas puedan utilizar mejor esta opción estratégica, eleven la tasa de desempeño en su uso y aprovechen mejor las ventajas que ofrece. El objetivo de esta investigación es aportar mayor conocimiento sobre los factores clave que pueden influir en el desempeño de las alianzas estratégicas entre organizaciones, y contrastar hasta qué punto el desempeño de las alianzas utilizadas por organizaciones que operan bajo un enf…