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Inductively coupled remote plasma-enhanced chemical vapor deposition (rPE-CVD) as a versatile route for the deposition of graphene micro- and nanostructures
No full textMultiple layers of graphene thin films with micro-crystalline orientation and vertical graphene nano-sheets were grown on different substrates (i.e., polycrystalline nickel foil, Ni(111), highly oriented pyrolytic graphite) using a single-step process based on low-pressure remote Plasma-Enhanced Chemical Vapor Deposition (rPE-CVD). In contrast to previous studies, a novel basic approach to this technique including a new remote inductively coupled RF plasma source has been used to (i) minimize the orientational effect of the plasma electrical fields during the catalyst-free growth of graphene nano-sheets, (ii) warrant for a low graphene defect density via low plasma kinetics, (iii) decouple the dissociation process of the gas from the growth process of graphene on the substrate, (iv) tune the feedstock gas chemistry in view of improving the graphene growth, and (v) reduce the growth temperature as compared to conventional chemical vapor deposition (CVD). In order to study the various aspects of the rPE-CVD graphene growth modes and to assess the characteristics of the resulting graphene layers, Raman spectroscopy, XPS, SEM, and STM were used. The results give evidence for the successful performance of this new rPE-CVD plasma deposition source, that can be combined with in situ UHV-based processess for the production of, e. g., hybrid metal ferromagnet/graphene systems
Electrochemically reduced graphene and iridium oxide nanoparticles for inhibition-based angiotensin-converting enzyme inhibitor detection
No full textIn this work, a novel biosensor based on electrochemically reduced graphene oxide and iridium oxide nanoparticles for the detection of angiotensin-converting enzyme inhibitor drug, captopril, is presented. For the preparation of the biosensor, tyrosinase is immobilized onto screen printed electrode by using 1-Ethyl-3-(3-dimethylaminopropyl)-carbodiimide and N-Hydroxysuccinimide coupling reagents, in electrochemically reduced graphene oxide and iridium oxide nanoparticles matrix. Biosensor response is characterized towards catechol, in terms of graphene oxide concentration, number of cycles to reduce graphene oxide, volume of iridium oxide nanoparticles and tyrosinase solution. The designed biosensor is used to inhibit tyrosinase activity by Captopril, which is generally used to treat congestive heart failure. It is an angiotensin-converting enzyme inhibitor that operates via chelating copper at the active site of tyrosinase and thioquinone formation. The captopril detections using both inhibition ways are very sensitive with low limits of detection: 0.019 µM and 0.008 µM for chelating copper at the active site of tyrosinase and thioquinone formation, respectively. The proposed methods have been successfully applied in captopril determination in spiked human serum and pharmaceutical dosage forms with acceptable recovery values
Ultrathin Mesoporous RuCo2O4 Nanoflakes : An Advanced Electrode for High-Performance Asymmetric Supercapacitors
No full textA new ruthenium cobalt oxide (RuCoO) with a unique marigold-like nanostructure and excellent performance as an advanced electrode material has been successfully prepared by a simple electrodeposition (potentiodynamic mode) method. The RuCoO marigolds consist of numerous clusters of ultrathin mesoporous nanoflakes, leaving a large interspace between them to provide numerous electrochemically active sites. Strikingly, this unique marigold-like nanostructure provided excellent electrochemical performance in terms of high energy-storage capacitance (1469 F g at 6 A g) with excellent rate proficiency and long-lasting operating cycling stability (ca. 91.3 % capacitance retention after 3000 cycles), confirming that the mesoporous nanoflakes participate in the ultrafast electrochemical reactions. Furthermore, an asymmetric supercapacitor was assembled using RuCoO (positive electrode) and activated carbon (negative electrode) with aqueous KOH electrolyte. The asymmetric design allowed an upgraded potential range of 1.4 V, which further provided a good energy density of 32.6 Wh kg (1.1 mWh cm). More importantly, the cell delivered an energy density of 12.4 Wh kg even at a maximum power density of 3.2 kW kg, which is noticeably superior to carbon-based symmetric systems
On the elliptic stark conjecture in higherweight
No full textWe study the special values of the triple product p-adic L-function constructedby Darmon and Rotger at all classical points outside the region of interpolation.We propose conjectural formulas for these values that can be seen as extendingthe Elliptic Stark Conjecture, and we provide theoretical evidence for them by provingsome particular cases
Scientific and methodological support of psychological care of sports activities
No full textThe article examines the scientific and methodical basis of psychological preparation of athletes: models, model characteristics, monitoring of preparedness of athletes, innovative psychodiagnostic, psychocorrective and psychotherapeutic measures of psychological care of sports activities. The article justified new approaches to psychological preparation of young athletes 7-10 years old through the use of desktop games. In this article you can find author's table game "psysports," disclosed psychological purpose that solved by using this games when working with young athletes. The game «PSY-SPORT» is aimed at achieving the following objectives: a) improving the socio-psychological climate of young athletes and developing their ability to communicate effectively with their teammates; b) the formation of a positive attitude to the favorite sport, training and competitive activities, teammates; c) the formation of motivation to chosen sports; d) increasing the level of psychological culture of young athletes; e) acting out of emotions and feelings; f) the development of skills of self-control, controlling your thoughts, emotions, feelings, actions; g) analysis of the hidden psychological problems manifesting themselves in gaming activities; h) increasing confidence and self-esteem; i) acquisition of knowledge about the sport; j) development of moral qualities. The main features of table games are vivid emotional coloring, the ability to display each child's personal qualities and creative qualities of a psychologist and a coach during their preparation, organization and carrying out.El artículo examina las bases científicas y metódicas de la preparación psicológica de los atletas: modelos, características del modelo, monitoreo de la preparación de los atletas, innovadoras medidas psicodiagnósticas, psicocorrectivas y psicoterapéuticas de la atención psicológica de las actividades deportivas. El artículo justifica nuevos enfoques para la preparación psicológica de atletas jóvenes de 7 a 10 años mediante el uso de juegos de escritorio. En este artículo puede encontrar el juego de mesa del autor "psy-sports", reveló el propósito psicológico que resolvió al usar este juego cuando trabajaba con atletas jóvenes. El juego «PSY-SPORT» tiene como objetivo alcanzar los siguientes objetivos: a) mejorar el clima sociopsicológico de los atletas jóvenes y desarrollar su capacidad de comunicarse de manera efectiva con sus compañeros de equipo; b) la formación de una actitud positiva hacia el deporte favorito, entrenamiento y actividades competitivas, compañeros de equipo; c) la formación de motivación para los deportes elegidos; d) aumentar el nivel de cultura psicológica de los atletas jóvenes; e) actuar por emociones y sentimientos; f) el desarrollo de habilidades de autocontrol, controlando sus pensamientos, emociones, sentimientos, acciones; g) análisis de los problemas psicológicos ocultos que se manifiestan en las actividades de juego; h) aumentar la confianza y la autoestima; i) adquisición de conocimientos sobre el deporte; j) desarrollo de cualidades morales. Las características principales de los juegos de mesa son colores vivos y emocionales, la capacidad de mostrar las cualidades personales de cada niño y las cualidades creativas de un psicólogo y un entrenador durante su preparación, organización y realización.В статье рассматриваются научно-методические основы психологической подготовки спортсменов: модели, модельные характеристики, мониторинг готовности спортсменов, инновационные психодиагностические, психокоррекционные и психотерапевтические меры психологической помощи в спорте. В статье обоснованы новые подходы к психологической подготовке молодых спортсменов 7-10 лет с использованием настольных игр. В статье представлена авторская настольная игра «пси-спорт», которая позволяет решать вопросы психологического обеспечения юных спортсменов. Игра «PSY-SPORT» направлена на достижение следующих целей: a) улучшение социально-психологического климата в коллективе юных спортсменов и развитие навыков эффективного взаимодействия в команде; б) формирование позитивного отношения к занятиям спортом, к обучению и соревнованиям, а также товарищам по команде; в) формирование осознанной мотивации к избранным видам спорта; г) повышение уровня психологической культуры молодых спортсменов; д) активизация эмоций и чувств; е) развитие навыков самоконтроля, контроля над своими мыслями, эмоциями, чувствами, действиями; ж) анализ скрытых психологических проблем, проявляющихся в игровых действиях; з) повышение уверенности и самооценки; и) получение знаний о спорте; к) развитие нравственных качеств. Основными особенностями настольных игр являются яркая эмоциональная окраска, способность отображать личные качества каждого ребенка и творческие качества психолога и тренера во время их подготовки, организации и проведения
New paradigm in modern sports psychology
No full textThe article is a critical review of the main stages of the development of sports psychology in Russia and the rationale for new ways, new approaches for the psychological support of athletes. Also in this article a new paradigm of sports psychology is proposed. The essence of this approach consists in the transition from the process of correction and regulation of the athlete's mental states to the formation of psychological entities that can provide a state of confidence and stability in the process of the athlete's performance in competitions. In this regard, the key tasks of sports psychology should be the study of the possibility of forming the basic personal attitudes and characteristics of the athletes at each stage of the sports career, which include viability, initiative, confidence, self-control, self-regulation. In addition, the important direction of work should be the creation and development psychological techniques that determine the formation of basic attitudes and personal characteristics of the athlete, the definition of the role and place of the coach, psychologist, as well as of the athlete himself in the formation of the subject of sports activities. The article notes that the new paradigm of the development of sports psychology does not exclude the existing approaches in sports psychology, but on the contrary relies on its achievements.El artículo es una revisión crítica de las principales etapas del desarrollo de la psicología del deporte en Rusia y la justificación de nuevas formas, nuevos enfoques para el apoyo psicológico de los atletas. También en este artículo se propone un nuevo paradigma de psicología del deporte. La esencia de este enfoque consiste en la transición del proceso de corrección y regulación de los estados mentales del atleta a la formación de entidades psicológicas que pueden proporcionar un estado de confianza y estabilidad en el proceso del desempeño del atleta en las competiciones. En este sentido, las tareas clave de la psicología del deporte deberían ser el estudio de la posibilidad de formar las actitudes y características personales básicas de los atletas en cada etapa de la carrera deportiva, que incluyen viabilidad, iniciativa, confianza, autocontrol, autocontrol regulación. Además, la dirección importante del trabajo debe ser la creación y el desarrollo de técnicas psicológicas que determinen la formación de actitudes básicas y características personales del atleta, la definición del papel y el lugar del entrenador, psicólogo, así como del propio atleta. en la formación del tema de actividades deportivas. El artículo señala que el nuevo paradigma del desarrollo de la psicología del deporte no excluye los enfoques existentes en la psicología del deporte, sino que, por el contrario, se basa en sus logros.Статья представляет собой критический обзор основных этапов развития спортивной психологии в России и обоснование новых путей, новых подходов к психологической поддержке спортсменов. Также в этой статье предлагается новая парадигма спортивной психологии. Суть этого подхода заключается в переходе от процесса коррекции и регулирования психических состояний спортсмена к формированию психологических образова-ний, которые могут обеспечить состояние уверенности и стабильности в процессе выступления спортсмена на соревнованиях. В связи с этим ключевыми задачами спортивной психологии должно стать изучение возможно-сти формирования базовых личностных установок и характеристик спортсменов на каждом этапе спортивной карьеры, к которым относятся жизнеспособность, инициативность, уверенность в себе, самоконтроль, самооб-ладание. регулирование.Кроме того, важным направлением работы должно стать создание и развитие психологических приемов, опреде-ляющих формирование базовых установок и личностных характеристик спортсмена, определение роли и места тренера, психолога, а также самого спортсмена в формировании субъекта спортивной деятельности. В статье отмечается, что новая парадигма развития спортивной психологии не исключает существующие подходы в спор-тивной психологии, а наоборот опирается на ее достижения
"Nunca pensé abandonar los estudios" : Relación entre la formación académica de los progenitores y la carrera dual de deportistas de élite
No full textEl objetivo general del presente estudio es explorar la relación de la formación académica de los progenitores en el desarrollo de la carrera dual de los deportistas de élite. Para ello, se diseñó un estudio cualitativo con una muestra de 20 deportistas (10 retirados y 10 en activo). A raíz de las entrevistas semiestructuradas se realizó un análisis de contenido combinando aproximaciones deductivas e inductivas, obteniendo diferentes categorías con significado representativo. Los resultados muestran que los deportistas cuyos padres poseían estudios superiores, optan por la realización de la carrera dual cursando también este tipo de estudios. Además, suelen elegir carreras no vinculadas con el deporte, lo que parece dotarles de una identidad multidimensional que les facilita la retirada de la élite deportiva. Por otro lado, los deportistas cuyos padres no poseían este tipo de estudios, cuando optan por la carrera dual, lo hacen estudiando carreras, estudios reglados o no reglados (no regulados por ley ni contemplados por el Ministerio de Educación), vinculados al deporte, lo que favorece la identidad unidimensional, exclusivamente deportiva, y parece dificultar la transición a la retirada.The main aim of this study is to explore the relation of the educational level of the parents in the development of the elite athletes' dual career. For this purpose, a qualitative study was designed through personal interviews with a sample of 20 athletes (10 retired and 10 active). Subsequently, a content analysis was carried out combining deductive and inductive approaches, and different representative categories were obtained. The results show that those athletes whose parents had a higher education develop a dual career including university studies. In addition, they usually choose a university degree not linked to sports, which seems to give them a multidimensional identity that facilitates the withdrawal of their sporting career. On the other hand, athletes whose parents did not have higher education, when they opt for a dual career, they do so by studying university degrees linked to sports, officially and non officially sanctioned-non regulated by law nor approved by the Education Ministry. This favors a one-dimensional identity exclusively focused on sports, hampering the transition to the athletic retirement.O objetivo do presente estudo é explorar a relação que exerce a formação académica dos progenitores na carreira dual dos atletas de elite. Desenhou-se um estudo qualitativo com uma amostra de 20 atletas ( 10 retirados e 10 no ativo). Após as en-trevistas realizadas, procedeu-se a uma análise de conteúdo combinando análises dedutivas e indutivas, obtendo diferentes categorias representativas. Os resultados mostram que os atletas, cujos progenitores possuem estudos superiores, optam por uma carreira dual investindo também nesse tipo de estudos. Para além disso, estes atletas escolhem áreas académicas não vinculadas ao desporto, o que parece dotá-los de uma identidade multidimensional que facilita a retirada desportiva. Por outro lado, os atletas cujos progenitores não têm este tipo de estudos, quando optam por uma carreira dual, fazem-no escolhendo áreas académicas, ou cursos não universitários, relacionadas com o desporto, o que favorece a identidade unidimensional, exclusivamente desportiva e dificulta a transição na retirada desportiva
World Health Organization (WHO) antibiotic regimen against other regimens for the treatment of leprosy : a systematic review and meta-analysis
No full textAltres ajuts: Maria Lazo-Porras is funded by the Swiss Goverment Excellence Scholarship (2018.0698).To evaluate the effectiveness and safety of the World Health Organization antibiotic regimen for the treatment of paucibacillary (PB) and multibacillary (MB) leprosy compared to other available regimens. We performed a search from 1982 to July 2018 without language restriction. We included randomized controlled trials, quasi-randomized trials, and comparative observational studies (cohorts and case-control studies) that enrolled patients of any age with PB or MB leprosy that were treated with any of the leprosy antibiotic regimens established by the WHO in 1982 and used any other antimicrobial regimen as a controller. Primary efficacy outcomes included: complete clinical cure, clinical improvement of the lesions, relapse rate, treatment failure. Data were pooled using a random effects model to estimate the treatment effects reported as relative risk (RR) with 95% confidence intervals (CI). We found 25 eligible studies, 11 evaluated patients with paucibacillary leprosy, while 13 evaluated patients with MB leprosy and 1 evaluated patients of both groups. Diverse regimen treatments and outcomes were studied. Complete cure at 6 months of multidrug therapy (MDT) in comparison to rifampin-ofloxacin-minocycline (ROM) found RR of 1.06 (95% CI 0.88-1.27) in five studies. Whereas six studies compare the same outcome at different follow up periods between 6 months and 5 years, according to the analysis ROM was not better than MDT (RR of 1.01 (95% CI 0.78-1.31)) in PB leprosy. Not better treatment than the implemented by the WHO was found. Diverse outcome and treatment regimens were studied, more statements to standardized the measurements of outcomes are needed
Legislación civil y religiosa contra la tauromaquia : prohibiciones históricas de los espectáculos taurinos en España entre 1567 y 1936
No full textA lo largo de la historia de España, han sido numerosos los intentos de prohibir los espectáculos taurinos o, cuando menos, de limitar sus elementos más bárbaros, sobre todo en lo que respecta al maltrato animal. Estas medidas se tomaron partiendo de la creencia de que rebajar o eliminar la barbarie tauromáquica iría en beneficio de una sociedad más civilizada, sensible y humana.Throughout the history of Spain, there have been numerous attempts to ban bullfighting or, at least, to limit its most barbaric elements, especially with regard to animal abuse. These measures were taken based on the belief that reducing or eliminating bullfighting barbarism would be to the benefit of a more civilized, sensitive and humane society.A lo largo de la historia de España, han sido numerosos los intentos de prohibir los espectáculos taurinos o, cuando menos, de limitar sus elementos más bárbaros, sobre todo en lo que respecta al maltrato animal. Estas medidas se tomaron partiendo de la creencia de que rebajar o eliminar la barbarie tauromáquica iría en beneficio de una sociedad más civilizada, sensible y humana
Crim i càstig a Mesopotàmia
No full textEn aquest article recollim el text de la conferència que va donar Miquel Civil el dia 15 de novembre del 2001 a la sala de juntes de la Facultat de Filologia de la Universitat de Barcelona. L'acte fou organitzat per l'associació Eridu. Societat Catalana d'Amics del Pròxim Orient Antic.In this article we publish the text of the lecture given by Miquel Civil on November 15, 2001 in the boardroom of the Faculty of Philology of the University of Barcelona. The event was organized by the Eridu. Catalan Society of Friends of the Ancient Near East