8,363 research outputs found
Distributed Parameters Dynamic Model of a Solar Fresnel Collector Field
8th World CongressThe International Federation of Automatic ControlMilano (Italy) August 28 - September 2, 2011This paper describes a dynamic model for a linear Fresnel collector field of a solar refrigeration plant. The collector field concentrates solar radiations on a tube that heats up water that is used by an absorption machine to produce chilled air for refrigeration purposes. The model takes into account the solar radiation losses produced by the mirrors and the absorbing tube structure as well as the temperatures in 64 segments of the receiving tube and water. Although the dynamic model is of high dimension and nonlinear, the identification problem can be expressed as a linear problem in model parameters. The least square method was used for identification. The model was validated comparing the simulation results with the plant data for different operating conditions
Team equilibrium and innovation performance
2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other worksToday competition has increased between organizations and they are urged to improve constantly their performance throughout innovation if they want to survive and be profitable. However, an organization can't be innovative if it doesn't counts with creative people and build teams to strength its creative and innovative capabilities. Besides, the impact of technology in innovation has been widely studied but there are others major aspects that need more exploration to understand their influence in it. For example, collaborative work, multicultural teamwork, creative teamwork, entrepreneurial behavior, etc. Some authors suggest more research is needed regarding organization capabilities that promote effective relationships for innovation. According to West (2002), three issues dominated research about creativity and innovation among teams: the characteristics of group tasks and their impact in the creative-innovative process; the role of diversity in knowledge and skills between team members; and team integration. If these issues are relevant for team creativity and innovation, then frameworks and tools to configure teams are necessary. It may be taken by granted that there must be an equilibrium of roles within teams to foster creativity focused on innovation. So, in this paper several approaches of creativity are reviewed. Then a conceptual model to foster Team Equilibrium and strength innovation performance is proposed and applied through a web-based tool. A first empiric exploration is presented. The proposed model can be used as a basis to develop tools that helps teams for self-analysis.Peer ReviewedPostprint (published version
Gravitino Dark Matter in Split Supersymmetry with Bilinear R-Parity Violation
In Split-SUSY with BRpV we show that the Gravitino DM solution is consistent
with experimental evidence on its relic density and life time. We arrive at
this conclusion by performing a complete numerical and algebraic study of the
parameter space, including constraints from the recently determined Higgs mass,
updated neutrino physics, and BBN constraints on NLSP decays. The Higgs mass
requires a relatively low Split-SUSY mass scale, which is naturally smaller
than usual values for reheating temperature, allowing the use of the standard
expression for the relic density. We include restrictions from neutrino physics
with three generations, and notice that the gravitino decay width depends on
the atmospheric neutrino mass scale. We calculate the neutralino decay rate and
find it consistent with BBN. We mention some implications on indirect DM
searches.Comment: 35 pages, 7 figures. References added, typos corrected and
experimental constraints updated. Some clarifications added in Section 2.
Version to appear in EPJ
A New Approach for Bounding Awards in Bankruptcy Problems
The solution for the "Contested Garment Problem" proposed in the BabylonicTalmud, one of the most important sources of inspiration for solving situations where demand overcomes supply of some resources, suggests that each agent should receive at least some part of the available amount when facing these situations. Thisidea has been underlied the theoretical analysis of bankruptcy problems from its beginning (O'Neill, 1982) to present day (Dominguez and Thomsom, 2006). In this context, starting from the fact that a society establishes its own set of "Commonly Accepted Equity Principles", we propose a new award bound by providing each agent her minimum amount according to all the admissible bankruptcy rules for such a society. Moreover, we analyze the recursive application of this new bound, since it will not exhaust the resources, in general.Bankruptcy problems, bankruptcy rules, lower bound, recursive process.
E-Health business models prototyping by incremental design
User-Driven Healthcare: Concepts, Methodologies, Tools, and Applications provides a global discussion on the practice of user-driven learning in healthcare and connected disciplines and its influence on learning through clinical problem solving. This book brings together different perspectives for researchers and practitioners to develop a comprehensive framework of user-driven healthcare.Postprint (published version
Terapia asistida con animales en pacientes oncológicos: una revisión bibliográfica
Treball de Final de Grau en Psicologia. Codi: PS1048. Curs acadèmic 2016-2017El cáncer causa desajustes psicológicos y emocionales debido a su naturaleza
crónica. Los pacientes oncológicos tienen una alta prevalencia de padecer algún
trastorno psicológico, entre los que destacan la depresión y los trastornos de ansiedad.
Estos pueden interferir en la adherencia del tratamiento oncológico afectando al
paciente a nivel físico, psíquico y social. En los últimos años, nuevos estudios destacan
el uso de animales en terapia, informando de los múltiples beneficios que tienen los
animales como coayudantes afectivos.
El presente trabajo tiene como objetivo realizar una revisión bibliográfica sobre
el uso de la terapia asistida con animales en pacientes oncológicos. Para recopilar
información acorde con el tema se ha consultado en bases de datos científicas con los
descriptores: animal-assisted therapy “and” cancer. En total se obtuvieron 41 artículos
que tuvieran ambos descriptores y se seleccionaron 8, aquellos más adecuados e
interesantes para desarrollar en la presente revisión bibliográfica. Los artículos se van a
analizar diferenciados por las edades de los pacientes (niños y adultos). En todos los
estudios las intervenciones con los perros se desarrollan dentro del hospital y los
pacientes pueden interactuar libremente con el animal: acariciándolo, hablándole,
peinándolo…
Estos estudios sugieren que la presencia de un animal de terapia tiene beneficios
fisiológicos y psicosociales, puede reducir el estrés, la ansiedad y la depresión, mejorar
el estado de ánimo además de desarrollar un sentimiento se seguridad, fomentar la
alianza terapéutica entre paciente y profesional de la salud.Cancer causes psychological and emotional maladjustments because of its
chronic nature. Cancer patients have a high prevalence of suffering from a
psychological disorder, including depression and anxiety disorders. These can interfere
in the adherence of oncological treatment affecting the patient on a physical, psychic
and social. In recent years, new studies have highlighted the use of animals in therapy,
reporting the multiple benefits that animals have as affective co-workers.
The objective of this study was to conduct a literature review on the use of
animal assisted therapy in cancer patients. In order to collect information according to the topic, it has been consulted in scientific databases with the descriptors: animalassisted
therapy "and" cancer. In total, 41 articles were obtained that had both
descriptors, and 8 were those that were more adequate and interesting to develop in the
present bibliographic review. The articles will be analyzed differentiated by the ages of
the patients (children and adults). In all studies interventions with dogs are developed
within the hospital and patients can interact freely with the animal: caressing, talking,
combing...
These studies suggest that the presence of an animal therapy has physiological
and psychosocial benefits, can reduce stress, anxiety and depression, improve mood in
addition to developing a feeling of security, foster therapeutic alliance between patient
and professional health
BANKRUPTCY GAMES AND THE IBN EZRA'S PROPOSAL
This paper follows the interpretation of the bankruptcy problems in terms of TU games given in O'Neill (1982). In this context we propose the analysis of the Transition Game associated to each bankruptcy problem. We explore an old solution described by Ibn Ezra in the XII century. Firstly, we study the extension of the Ibn Ezra's proposal by O'Neill (1982), the Minimal Overlap solution. We provide a characterization of this value and show that it can be understood as the composition of the Ibn Ezra solution and the Constrained Equal Loss rule. Secondly, we introduce a new way of extending the Ibn Ezra's proposal, the Generalized Ibn Ezra solution, by imposing that the general distribution principle in which is inspired remains fixed. The characterization of our proposal clarifies the analogies and differences between the two ways of generalizing the Ibn Ezra's proposal.Bankruptcy Problems, Cooperative Games, Ibn Ezra's proposal, Minimal Overlap solution.
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