Psicodidáctica de la educación física

El término PSICODIDACTICA es utilizado por Renzo Titone con especial frecuencia, ya desde los años cincuenta, aunque su historia conceptual es más remota. El componente psicológico es una de las matrices fundamentales de una didáctica explicitamente científica y por ello se va introduciendo cada vez más en cualquier metodología de la enseñanza que intente ser seria y que sea consciente de la pluralidad de las ciencias fundamentales. En esta comunicación pretendemos acercar el término y sus contenidos al ámbito de la Educación Física, centrando su estudio en los procesos de comunicación, las interacciones entre el profesor y los alumnos, así como las características y factores de los aprendizajes de tipo escolar. Para ello se parte de las diferencias que existen entre la enseñanza de la Educación Física y la enseñanza de otras áreas del currículum que tienen un caracter más cognitivo. En cuanto al proceso de comunicación como mediador del proceso de enseñanza - aprendizaje hay que decir que es necesario para que se de una correcta transmisión de la información. Sin comunicación no puede hablarse de enseñanza. Una comunicación eficaz requiere una serie de características (compresión, coherencia, enfoque positivo, frecuencia, etc.) La interacción entre el profesor y el alumno está a su vez relacionada con la comunicación y principalmente con el estilo de enseñanza que utiliza el profesor en el desarrollo de sus sesiones. Se hace una descripción de las características básicas de cada estilo de enseñanza, en base a la clasificación propuesta por Muska Mosston. Finalizamos la comunicación estableciendo las características y factores más implicados en los procesos de apredizaje de las acciones motrices

Roof for sports fields in Chantada

[Resumen:] En el presente proyecto se pretende plantear la construcción de una cubierta sobre las pistas de tenis ya existentes en la actualidad en el Parque de Eloísa Rivadulla, situado en el municipio de Chantada, en la provincia de Lugo. Dicha cubierta permitirá llevar a cabo la práctica deportiva en estas instalaciones cuando las condiciones climáticas sean desfavorables, suponiendo un gran incentivo para el deporte en el concello. La solución adoptada consiste en una cubierta con vigas de madera laminada en forma de arcos circulares, con correas perpendiculares también de madera y pilares de acero laminado.Traballo fin de grao (UDC.ETSECCP). Tecnoloxía da Enxeñaría Civil. Curso 2021/202

Adaptive Vectorial Filter for Grid Synchronization of Power Converters Under Unbalanced and/or Distorted Grid Conditions

This paper presents a new synchronization scheme for detecting multiple positive-/negative-sequence frequency harmonics in three-phase systems for grid-connected power converters. The proposed technique is called MAVF-FLL because it is based on the use of multiple adaptive vectorial filters (AVFs) working together inside a harmonic decoupling network, resting on a frequency-locked loop (FLL) which makes the system frequency adaptive. The method uses the vectorial properties of the three-phase input signal in the αβ reference frame in order to obtain the different harmonic components. The MAVF-FLL is fully designed and analyzed, addressing the tuning procedure in order to obtain the desired and predefined performance. The proposed algorithm is evaluated by both simulation and experimental results, demonstrating its ability to perform as required for detecting different harmonic components under a highly unbalanced and distorted input grid voltage

Distribution and substrate preference of Simuliidae (Diptera) in the river Serpis (south-eastern Spain)

Se analiza la distribución de las distintas especies de simúlidos encontradas a lo largo del cauce del río Serpis y su relación con el sustrato, categorizado como rocoso y vegetal. De las siete especies capturadas, sólo Simulium velutinum (Santos Abreu, 1922) y Simulium ornatum Meigen, 1818 mostraron preferencia por el sustrato vegetal.We study the distribution of the blackfly species found along the river Serpis and their relationship with the substrate on which they were found, which was categorized as bedrock and vegetal substrate. Out of the seven captured species, only Simulium velutinum (Santos Abreu, 1922) and Simulium ornatum Meigen, 1818 showed a preference for the vegetal substrate

The role of the IMF in recent sovereign debt restructurings : implication for the policy of lending into arrears

This paper analyzes the role played by the IMF in eight recent sovereign debt restructurings from a comparative perspective: Argentina (2001-2005), the Dominican Republic (2004-2005), Ecuador (1999-2000), Pakistan (1998-2001), the Russian Federation (1998-2001), Serbia (2000-2004), Ukraine (1998-2000) and Uruguay (2004). Our objective is to identify the various dimensions of the IMF's potential involvement during those processes, and to extract some relevant policy implications to reform the Policy of Lending Into Arrears. We find that the IMF can potentially exert a substantial influence on sovereign debt restructurings by influencing countries' decision to restructure when the debt burden is deemed unsustainable, by providing official finance to substitute for a loss of access to international financial markets, by setting a medium-term domestic adjustment path through conditionality, by providing 'independent' information at a time of heightened uncertainty, and by providing incentives both to creditors and debtors. However, a lack of consistency has tended to characterize the role of the IMF in recent sovereign debt restructurings. In part, this reflects the flexibility with which the IMF has adapted its intervention to country-specific factors. However, we argue that this lack of consistency has tended to exacerbate the uncertainty and information asymmetries that are often associated with sovereign debt restructurings, and that a more systematic approach is neede

Recent episodes of sovereign debt restructurings : a case-study approach

Sovereign debt restructurings do constitute a recurrent phenomenon in emerging and developing economies. Consequently, the international community has repeatedly explored options to increase the predictability and orderliness of debt workouts, of which the debate on the Sovereign Debt Restructuring Mechanism (SDRM) proposed by the IMF in 2002 is the most recent example. Eventually, however, the most ambitious reform proposals have been systematically abandoned, thereby consolidating debt restructurings as market-led case-by-case processes. This paper reviews nine recent sovereign debt restructurings: Argentina (2001-2005), Belize (2006-2007), the Dominican Republic (2004-2005), Ecuador (1999-2000), Pakistan (1998-2001), the Russian Federation (1998-2001), Serbia (2000-2004), Ukraine (1998-2000) and Uruguay (2004). Our case study analysis reveals the lack of a single model for sovereign debt restructurings. Indeed, we find significant variations in the roots of the crises, the size of the losses undergone by investors, the speed at which an agreement was reached with creditors, the proportion of creditors accepting the terms of that agreement, or the time needed to restore access to international financial markets. There also appears to be a lack of consistency in the role played by the IMF in the various crises.

Inertial and Degradation Delay Model for CMOS Logic Gates

The authors present the Inertial and Degradation Delay Model (IDDM) for CMOS digital simulation. The model combines the Degradation Delay Model presented in previous papers with a new algorithm to handle the inertial effect, and is able to take account of the propagation and filtering of arbitrarily narrow pulses (glitches, etc.). The model clearly overcomes the limitations of conventional approaches

Suicidal ideation and suicide attempts in healthcare professionals during the COVID-19 pandemic: A systematic review

Background: COVID-19 has caused a series of economic, social, personal, and occupational consequences that may affect the mental health of healthcare workers (HCWs), with the consequent risk of developing suicidal ideation and behaviors. Objectives: The aim of this study was to identify the main risk factors that may predispose HCWs to suicidal ideation and suicide attempts during the COVID-19 pandemic. Methods: A systematic review of studies published between January 2020 and August 2022 was conducted following the PRISMA guidelines in the following electronic databases: Pubmed, Scopus, Web of Science, CINAHL, and PsycINFO. Methodological quality was assessed using the critical appraisal tools for non-randomized studies of the Joanna Briggs Institute (JBI). The followed protocol is listed in the International Prospective Register of Systematic Reviews (PROSPERO) with code CRD42022340732.ResultsA total of 34 studies were included in this review. There are a number of underlying factors such as higher rates of depression, anxiety, pre-pandemic lifetime mental disorders or previous lifetime suicide attempt, living alone, having problems with alcohol and/or other drugs, etc. that favor the emergence of suicidal tendencies and ideation in times of COVID-19. Similarly, the pandemic may have precipitated a series of factors such as economic concerns, assessing one's working conditions as poor, having family members or friends infected, changes in services or functions, and feeling discriminated against or stigmatized by society. Other factors such as age, sex, or type of healthcare worker show differences between studies. Conclusion: Organizations should ensure the adoption of strategies and programmes for early detection of suicides as well as increased attention to the mental health of professions with a high workload.Universidad de Huelva/CBU