Panorama de las revistas sobre Ciencia Política en Iberoamérica*

ResumenLa autora señala que el objetivo del presente texto se vincula con el carácter didáctico de la divulgación del conocimiento. Considera que los elementos informativos y el análisis que presenta en el cuerpo de su propuesta, pueden contribuir a que los estudiantes de Ciencias Sociales, en especial los de Ciencia Política, conozcan más acerca del avance científico de la disciplina.AbstractThe author notes that the objective of this text is related to the didactic nature of the dissemination of knowledge. As she believes that the information essentials and the analysis presented in the body of their proposal can help the students of Social Sciences, especially those who study Political Science, know more about the advancement of the discipline

L'aprenentatge cooperatiu com a eina de millora de la qualitat docent

El 2002 es va demanar a l’Agència de Gestió d'Ajuts Universitaris i de Recerca (AGAUR) el projecte “L’aprenentatge cooperatiu com a eina de millora de la qualitat docent” el qual perseguia, entre d’altres, tres objectius principals. El primer objectiu era fer un llibre en el qual es recollissin els elements fonamentals de l’aprenentatge cooperatiu (AC) en l’àmbit universitari i es descrivissin un seguit d’experiències dutes a terme per un grup de professors de la UPC. Al llarg dels 2 anys i mig que ha durat el projecte s’hi ha pogut incorporar experiències de professors d’altres universitats que han anat coneixent els avenços parcials de la publicació. El segon objectiu era fer un vídeo en el qual s’expliquessin de manera molt concisa els aspectes bàsics de l’AC. El tercer era fer una pàgina web que servís de plataforma de presentació de l’AC i de les activitats del GIAC (grup d’interès en AC que depèn de l’ICE de la UPC). En aquesta mateixa pàgina web (http://giac.upc.es) hi ha una part dels continguts del primer objectiu i tots els continguts del segon

Design and performance of an innovative hybrid constructed wetland for sustainable pig slurry treatment in small farms

Simple and suitable treatment of swine slurry from small farms is paramount especially in sensitive areas. This paper evaluates the viability of an innovative nature-based technology hybrid system (a Vertical Flow Constructed Wetland followed by a Horizontal Flow Constructed Wetland both planted with reeds - Phragmites australis) to treat swine slurry for further land application or discharge in water bodies with reduced nitrogen impact. Physicochemical parameters, bacterial indicators, surface deposits and biomass inside the filters were monitored. The hybrid configuration offered a dual function for simultaneous solid-liquid separation and biological treatment. Removal of organic matter and suspended solids was very high (>80% for SS and >75% for COD and BOD5) while the overall nitrogen load removal was 65%, due to the combined nitrification/denitrification processes, thus effectively reducing swine slurry nitrogen content. The influence of temperature and design and operational parameters on the treatment efficiency and the hydraulic behavior were also studied. The vertical constructed wetland achieved good hydraulic performance with no clogging problems, despite high pollutant loads. Some of the pollutants were retained and mineralized in the surface deposit layer, increasing around 20 cm each year. This organic biosolid layer improved filtration efficiency. The high ammonia contents interfered with the growth of Phragmites australis, while the high concentration of suspended solids and organic matter determine the operation and design to be implemented

Problemas epistemológicos y metodológicos para entrelazar las historias de vida con el campo disciplinar : El caso de la ciencia política en México

La ponencia consiste en explicar algunos de los problemas epistemológicos y metodológicos que hubo que resolver para entrelazar las historias de vida de un grupo de profesores adscrito al Centro de Estudios Políticos de la UNAM, con los orígenes y consolidación de la Ciencia Política mexicana, que es el tema central del libro: Testimonios: Vida y trayectoria del Centro de Estudios Políticos 1971-2011, coordinado por la ponente.Facultad de Humanidades y Ciencias de la Educació

Municipal Wastewater Treatment and Reuse for Agriculture in Senegal

This paper reports on the performance of using a multistage constructed wetland (CW) to treat municipal raw wastewater and an analysis of its suitability for agricultural irrigation. The pilot plant consists of two stages of vertical flow CWs plus one stage of a horizontal CW built in 2018 with diferent local materials at the Gaston Berger University Campus, Saint Louis (Senegal). Each CW stage is composed of several filters with di erent type of media (silex, granite, or river gravel), filtering media depths, and macrophytes (Phragmites and Typha). The physicochemical and microbiological indicators were monitored over six months at each bed inlet and outlet to evaluate the e ciency and achievements of the Senegalese, European, and WHO regulations/recommendations for disposal or reuse in irrigation. This study demonstrates the viability of this new multistage CW design to treat raw municipal wastewater and produce an e uent of good quality suitable for reuse in agriculture. The removal of organic matter, suspended solids, and nutrients was very high (>95% for SS, BOD5 and N-NH4 +, >90% for COD and P-PO4 3 as was the reduction of microbiological indicators (fecal coliform reduction >5 log units and helminth egg removal of 100%). First, trends related to the influence of design (the type of gravel, filter depth, and type of macrophyte), operational modes, and the CW treatment eciency were determined. The use of non-crushed gravel and Typha spp. seemed to provide better removal rates. On the contrary, no diferences were found between the use of silex or granite gravel. For the studied Senegalese conditions under dry and hot climates, the preliminary results indicate that no resting periods are necessary for vertical flow CWs (VFCWs), thus resulting in a reduction in construction and operation costs. The main outcome of our study is evidence that multistage CWs can provide robust, cost-efective treatments, as well as allow for safe water reuse, which is imperative in areas with severe water scarcity and endemic microbiological waterborne diseases

Winged Aerial Robot: Modular Design Approach

This paper presents the design, modelling, control, and experimental validation of a novel flapping wing aerial robot built with servo actuators that could be applied in search, rescue, and assistance to injured people. The proposed concept design is intended to facilitate the construction of this kind of aerial robots following a modular and reconfigurable approach, consisting of a series of Servo-Flapping Engine (SFE) modules attached to the carbon fibre tube used as fuselage, and a tail servo, covering the structure with a light nylon cloth. The SFE modules are built with a pair of servos that rotate the wing rods with desired amplitude, frequency, and relative phase. Combining two SFE modules, it is possible to generate different flapping patterns and control the orientation of the aerodynamic surfaces. The paper covers the parametrization of the design, the hardware/software implementation, as well as the modelling and control. The proposed design is validated through gliding and flapping tests in an outdoor environment.Comisión Europea - ERC Advanced Grant GRIFFIN Action 788247Comisión Europea - Proyecto AERIAL-CORE H2020-2019-87147

Electrochemical Stability of Rhodium-Platinum Core-Shell Nanoparticles : An Identical Location Scanning Transmission Electron Microscopy Study

Rhodium-platinum core-shell nanoparticles on a carbon support (Rh@Pt/C NPs) are promising candidates as anode catalysts for polymer electrolyte membrane fuel cells. However, their electrochemical stability needs to be further explored for successful application in commercial fuel cells. Here we employ identical location scanning transmission electron microscopy to track the morphological and compositional changes of Rh@Pt/C NPs during potential cycling (10 000 cycles, 0.06-0.8 V, 0.5 HSO) down to the atomic level, which are then used for understanding the current evolution occurring during the potential cycles. Our results reveal a high stability of the Rh@Pt/C system and point toward particle detachment from the carbon support as the main degradation mechanism

Consum d'alcohol : anàlisi de l'associació amb estils educatius, personalitat i motius de consum

Durant els darrers anys, l'estudi dels motius de consum d'alcohol associats amb variables com la personalitat i els models parentals ha adquirit una gran importància. El present estudi, té com a objectiu principal analitzar quina influència tenen les variables de personalitat, estils educatius i grau de dependència a la substància envers els motius de consum. Per fer-ho, s'han desenvolupat anàlisis descriptius, comparacions de mitjanes, correlacions bivariades, correlacions parcials i en darrer lloc, un anàlisi de regressió logístic. En aquest sentit, una mostra de 32 persones que han estat depenents a l'alcohol en algun moment de la seva vida han contestat als qüestionaris: "Short form Revised Eysenck Personality Questionnaire" (EPQ-RS) per identificar els seus trets de personalitat (Neuroticisme, Extraversió i Psicoticisme), "Modified Drinking Motives Questionnaire Revised" (M DMQ-R) amb l'objectiu d'analitzar els motius que els van conduir al consum, "Alabama Parenting Questionnaire" (APQ) de forma retrospectiva per poder identificar els estils educatius durant la seva infància i el "Michigan Alcohol Screening Test" (MAST) el qual s'ha utilitzat com a eina de cribatge i paral·lelament com el grau de dependència alcohòlica del subjecte. Els resultats mostren que la implicació de la mare actua com a variable protectora en relació als motius de consum per afrontament de l'ansietat i la depressió. De forma similar, la implicació del pare també adopta un rol protector davant els motius per afrontament de la depressió. Per altre banda, el neuroticisme s'associa positivament amb els motius d'afrontament de la depressió i l'extraversió correlaciona en direcció negativa amb els motius de conformitat en les correlacions bivariades mentre que en l'anàlisi de regressió, la personalitat adopta el paper de mediadora entre els estils educatius i els motius de consum.In recent years, studies of alcohol consumption motives associated with variables such as personality and parental models has become very important. The present study aims to analyze how personality variables, educational styles and degree of alcohol dependency influence consumption motives. In order to accomplish this goal, descriptive analysis, means comparisons, bivariate correlations, partial correlations and a logistic regression model have been done. In this line, a sample of 32 people who have been alcohol dependent at some point in their life, answer the following questionnaires: Short form Revised Eysenck Personality Questionnaire" (EPQ-RS) to identify personality (Neuroticism, Extraversion and Psychoticism), "Modified Drinking Motives Questionnaire Revised" (M DMQ-R) to analyze the reasons which lead them to alcohol use, "Alabama Parenting Questionnaire" (APQ) in a retrospective form in order to identify the parenting educational styles during their childhood and "Michigan Alcohol Screening Test" (MAST) which has been used as a screening tool and as a measure of alcoholic dependence degree too. The results show that mother involvement acts as a protective variable in relation to coping with anxiety motives and depression. Similarly, the father involvement also takes a protective role against coping with depression motives. On the other hand, neuroticism is positively associated with coping with depression motives and extraversion negatively correlates with conformity in bivariate correlations while regression analysis, show that personality acts as a mediator between educational styles and consumption motives

Propuesta de un sistema de inventarios para empresas manufactureras del municipio de Pachuca de Soto en Hidalgo.

Las empresas enfrentan grandes retos que las están llevando a la consideración de propuestas de mejora de forma continua, por un lado, los desarrollos tecnológicos y por otro, las presiones que la competencia impone. Las empresas pequeñas y medianas y en particular las que fueron objeto de estudio,  son las más vulnerables ante los cambios del entorno global,  por lo que requieren fortalecer sus procesos de trabajo y de forma específica, los relacionados con la administración de sus inventarios.   El propósito de esta investigación es identificar el interés en la implementación de un sistema de gestión de los inventarios de materiales y herramental. el presente trabajo partió de un soporte documental y se complementó con una investigación de campo, adicionalmente se caracterizó por ser un estudio descriptivo y transversal. Se utilizó la técnica de encuesta para la obtención de datos de los sujetos de estudio.   Los resultados destacan que los entrevistados consideran viable implementar la propuesta presentada. Se observó que parte del mercado industrial en el municipio objeto de estudio, no tiene implementado este u otro sistema y que además no le dan la importancia necesaria a este tipo de herramientas de gestión de materia prima y herramental