5,571 research outputs found
Directed Random Markets: Connectivity determines Money
Boltzmann-Gibbs distribution arises as the statistical equilibrium
probability distribution of money among the agents of a closed economic system
where random and undirected exchanges are allowed. When considering a model
with uniform savings in the exchanges, the final distribution is close to the
gamma family. In this work, we implement these exchange rules on networks and
we find that these stationary probability distributions are robust and they are
not affected by the topology of the underlying network. We introduce a new
family of interactions: random but directed ones. In this case, it is found the
topology to be determinant and the mean money per economic agent is related to
the degree of the node representing the agent in the network. The relation
between the mean money per economic agent and its degree is shown to be linear.Comment: 14 pages, 6 figure
PSI 726: Antheia’s Novel
Este artículo ofrece un estudio de PSI 726, el cual constituye un fragmento de una novela griega de amor. Tras realizar una revisión del papiro original, ofrecemos aquí una nueva edición, traducción y comentario del texto, centrándonos en su lenguaje y estilo. Concluimos con el estudio de los personajes del fragmento y proponemos que sea considerado como una novela histórica.This paper offers a study of PSI 726, which constitutes a fragment of a Greek love novel. We re viewed the original papyrus, and provide here a new edition, translation and commentary of the text, focusing on its language and style. We conclude with the study of the characters of the fragment and pro pose to consider it a historical novel
Platinum-group elements in the cores of potassium feldspar spherules from the Cretaceous-Tertiary boundary at Caravaca (Spain)
The abundant spherules present in the Cretaceous-Tertiary boundary layer at Caravaca are diagenetically transformed to potassium feldspar. Before our study no possible relicts of the precursor material had been reported. but in this paper we describe the presence of cores in these spherules that could represent a relict of the «unknown precursor». These cores are made up of C mixed with Si. Mg. AL Cr. Ca among other elements. Laser Ablation System analysis also reveals an enrichment in pe;E could suggest an extraterrestrial origin for this material. PI. Pd and Ir do not show a chondritic ratio: however. asevere modification of their concentration could be expected during the early diagenetic processes.Las esférulas existentes en la lámina de sedimento del tránsito Cretácico-Terciario de la sección de Caravaca han sido transformadas diagenéticamente a feldespato potásico. En este trabajo se describe la existencia de núcleos encontrados en el interior de las esférulas. los cuales' pueden representar relictos del material precursor. Dichos núcleos están constituidos por C. Si. Mg, AL Cr y Ca entre otros elementos. Se pone de relieve, por vez primera, su notable enriquecimiento en elementos del grupo del platino, cuyas relaciones no condríticas pueden ser debidas a la existencia de importantes modificaciones en su concentración inicial causadas por los procesos diagenéticos y por la existencia de materia orgánica
Emplacement and Deformation of Mesozoic Gabbros of the High Atlas (Morocco): Paleomagnetism and Magnetic Fabrics
A paleomagnetic and magnetic fabric study is performed in Upper Jurassic gabbros of the central High Atlas (Morocco). These gabbros were emplaced in the core of preexisting structures developed during the extensional stage and linked to basement faults. These structures were reactivated as anticlines during the Cenozoic compressional inversion. Gabbros from 19 out of the 33 sampled sites show a stable characteristic magnetization, carried by magnetite, which has been interpreted as a primary component. This component shows an important dispersion due to postemplacement tectonic movements. The absence of paleoposition markers in these igneous rocks precludes direct restorations. A novel approach analyzing the orientation of the primary magnetization is used here to restore the magmatic bodies and to understand the deformational history recorded by these rocks. Paleomagnetic vectors are distributed along small circles with horizontal axes, indicating horizontal axis rotations of the gabbro bodies. These rotations are higher when the ratio between shales and gabbros in the core of the anticlines increases. Due to the uncertainties inherent to this work (the igneous bodies recording strong rotations), interpretations must be qualitative. The magnetic fabric is carried by ferromagnetic (s.s.) minerals mimicking the magmatic fabric. Anisotropy of magnetic susceptibility (AMS) axes, using the rotation routine inferred from paleomagnetic results, result in more tightly clustered magnetic lineations, which also become horizontal and are considered in terms of magma flow trend during its emplacement: NW-SE (parallel to the general extensional direction) in the western sector and NE-SW (parallel to the main faults) in the easternmost structures
Formación continuada en un equipo de atención primaria: análisis de las sesiones docentes 1996-1998
ObjetivoDescribir las sesiones docentes de un equipo de atención primaria en el trienio 1996-1998. Identificar los profesionales que las realizaron, así como estudiar las áreas del conocimiento abordadas.DiseñoEstudio descriptivo transversal, retrospectivo.EmplazamientoCentro de salud docente perteneciente a una zona de salud rural.ParticipantesTotal de sesiones docentes realizadas durante el trienio estudiado (n = 249).IntervencionesDe la hoja de registro mensual del programa de formación continuada de nuestra gerencia, se extrajeron las siguientes variables: fecha actividad, duración, número de asistentes, tipo de sesión, profesional docente y contenido de actividad (clasificada por patología según órganos y sistemas para sesión bibliográfica, clínica y con experto; cartera servicios de atención primaria-INSALUD 1996 para sesión sobre programa; informática).Mediciones y resultados principalesSesiones por mes: media 6,9 (DE, 4,8). Media asistentes: 9,3 (DE, 3,01). Duración media: 36,5 minutos (DE, 11,0). Tipo de sesión: bibliográfica, 65,2%; sobre programa, 18; sesión con experto, 7,2; informática, 5,6; clínica, 4. Responsables docentes: médico residente, 39,4%; médico de familia tutor, 34,9; médico de familia no tutor, 7,2; ATS, 6,4; médico hospitalario, 4; médico de familia sustituto, 3,6; farmacéutico, 2,8; pediatra, 1,2; fisioterapeuta, 0,4. Contenido actividades más frecuentes: patología general inespecífica, 16,1%; enfermedades de la piel, 8,8, y enfermedades del sistema endocrino, 7,6%.ConclusionesBaja frecuencia de sesiones clínicas. Los responsables docentes fueron mayoritariamente médicos de familia tutores y médicos residentes, siendo escasa la participación del resto de personal.ObjectivesTo describe the teaching sessions of a primary care team in the three-year period 1996-1998. To identify the professionals who ran them and study the areas of knowledge tackled. Design. A retrospective, cross-over, descriptive study.SettingTeaching health centre belonging to a rural health district.ParticipantsAll the teaching sessions that took place during the three-year period (n = 249). Interventions. The following variables were extracted from the monthly register sheet of the ongoing training programme of our management: date of activity, duration, number attending, type of session, teaching professional and contents of activity (classified by pathology according to organs and systems for bibliographic, clinical and expert sessions; portfolio of 1996 Primary Care- INSALUD services for session on programme; computer studies).Measurements and main resultsMean sessions per month: 6.9 (SD: 4.8). Mean attendance: 9.3 persons (SD: 3.01). Mean length: 36.5 minutes (SD: 11.0). Type of session: bibliographic 65.2%, on programme 18%, session with expert 7.2%, computer studies 5.6%, clinical 4%. Responsible for teaching: intern 39.4%; family doctor tutor 34.9%; family doctor not a tutor 7.2%; nurse 6.4%; hospital doctor 4%; locum family doctor 3.6%; pharmacist 2.8%; paediatrician 1.2%; physiotherapist 0.4%. Most common contents: non-specific general pathology (16.1%), skin diseases (8.8%), diseases of the endocrine system (7.6%).ConclusionsLow frequency of clinical sessions. The teachers in charge were mainly family doctor tutors and interns, with the rest of the staff participating little
Bibliometric Study of Technology and Occupational Health in Healthcare Sector: A Worldwide Trend to the Future
Since the eighties, technological tools have modified how people interact in their environment. At the same time, occupational safety and health measures have been widely applied. The European Agency for Safety and Health at Work considers that information and communication technologies are the main methods to achieve the goals proposed to improve working life and the dissemination of good practices. The principal objective was to determine the trends of publications focused on these technologies and occupational safety in the healthcare sector during the last 30 years. A bibliometric study was carried out. The 1021 documents showed an increased trend per country, especially for the United States (p < 0.001) and year (p < 0.001). The citations per year showed significant differences between citations of articles published before 2007 (p < 0.001). The year was also linked to the increase or decrease of articles (72.2%) and reviews (14.9%) (p < 0.001). The analysis of journal co-citations also showed that the main journals (such as Infection Control and Hospital Epidemiology) were linked to other important journals and had a major part in the clusters formed. All these findings were discussed in the manuscript and conclusions were drawn
Gelsilox: a novel strategy for the study of dynamics alteration in the thiol redox proteome
Comunicaciones a congreso
Tuberculosis and Other Airborne Microbes in Occupational Health and Safety
Airborne pathogens and non-malignant infectious diseases such as tuberculosis are highly contagious and can have severe effects on healthcare workers. The symptoms of these diseases take time to manifest, which can prevent workers from noticing that they have been exposed until symptoms appear. The current paper sought to assess the occupational safety and preventative measures taken in laboratories in Spain, and to compare these measures with those reported by other studies worldwide. A cross-sectional study of workers (35–50 years old) was conducted using a web survey (N = 30), and a bibliometric analysis was carried out in the Scopus database (92 documents were selected). The occupational safety and health measures were inadequate, according to the opinions of the workers. The training (p < 0.01), the amount of work (p < 0.05), and how the workers followed their protocols (p < 0.001) were linked to incidents and exposure to airborne pathogens. The most significant previous publication was a report (848 citations) stating that the previous variables linked to exposure are vital for prevention. Most works focused on countries like the U.S.A. (p = 0.009) were reviews, with a limited number of studies focused on occupational safety
Molecular Gastronomy in Spain
[EN] Beyond the overwhelming international success of Ferrán Adria, Spain has been one of the countries with a more active implication in molecular gastronomy as a scientific discipline but also in the use of ingredients, technologies, and equipment from the scientificand technological universe in the culinary area. Nowadays, this is a well-established discipline in Spain, with a number of research groups covering related topics, several companies commercializing appliances and additives worldwide, and renowned
international chefs and many restaurants and companies committed
to the collaboration with scientists for facing the future of
Spanish gastronomyThe authors would like to thank the Ministerio de Ciencia e Innovación (Spain) for funding the Collaborative Network “INDAGA” (AGL2007-28589- E/ALI; AGL2009-05765-E), which enabled their collaboration.García Segovia, P.; Garrido, MD.; Vercet Tormo, A.; Arboleya, JC.; Fiszman Dal Santo, S.; Martínez Monzó, J.; Laguarda, S.... (2014). Molecular Gastronomy in Spain. Journal of Culinary Science and Technology. 12(4):279-293. https://doi.org/10.1080/15428052.2014.914813S27929312
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