2,925 research outputs found
Digital Technologies for Teaching English as a Foreign/Second Language: a collective monograph
Колективна монографія розкриває різні аспекти використання цифрових технологій у навчанні англійської мови як іноземної/другої мови (цифровий сторітелінг, мобільні застосунки, інтерактивне навчання і онлайн-ігри, тощо) та надає освітянам і дослідникам ресурс для збагачення їхньої професійної діяльності. Окрема увага приділена цифровим інструментам для впровадження соціально-емоційного навчання та інклюзивної освіти на уроках англійської мови.
Для вчителів англійської мови, методистів, викладачів вищих закладів освіти, науковців, здобувачів вищої освіти
Children and Youth at Risk in Times of Transition: International and Interdisciplinary Perspectives
Children and youth belong to one of the most vulnerable groups in societies. This was the case even before the current humanitarian crises around the world which led millions of people and families to flee from wars, terror, poverty and exploitation. Minors have been denied human rights such as access to education, food and health services. They have been kidnapped, sold, manipulated, mutilated, killed, and injured. This has been and continues to be the case in both developed and developing countries, and it does not look as if the situation will improve in the near future. Rather, current geopolitical developments, political and economic uncertainties and instabilities seem to be increasing the vulnerability of minors, especially in the wars and armed conflicts currently being waged not only in Europe, but on almost every continent. How can risks children and youth are exposed to in times of transition be reduced? Which role do state agencies, non-governmental organisations, as well as children's coping strategies play in mitigating the vulnerabilities of minors? This volume addresses risks to which children and young people are exposed, especially in times of transition. The focus is on different groups of children in the European wartime and post-war societies of the Second World War, 'occupation children' in Germany, teenage National Socialist collaborators in Norway, and more recent cases such as child soldiers, refugee children, and children of European "Islamic State" fighters. The contributions come from international scholars and different academic disciplines (educational and social sciences, humanities, law, and international peace and conflict studies) and are based on historical, quantitative, and/or qualitative analyses.Kinder und Jugendliche gehören zu den am meisten gefährdeten Gruppen einer Gesellschaft. Dies war auch schon vor den aktuellen humanitären Krisen in der Welt der Fall, die Millionen von Menschen und Familien zur Flucht vor Kriegen, Terror, Armut und Ausbeutung veranlassten. Minderjährigen wurden Menschenrechte wie der Zugang zu Bildung, Nahrung und medizinischer Versorgung verweigert. Sie wurden entführt, verkauft, manipuliert, verstümmelt, getötet und verletzt. Dies war und ist sowohl in den Industrie- als auch in den Entwicklungsländern der Fall, und es sieht nicht so aus, als würde sich die Situation in naher Zukunft verbessern. Dieser Band befasst sich mit Risiken, denen Kinder und Jugendliche vor allem in Zeiten des Übergangs ausgesetzt sind. Im Mittelpunkt stehen verschiedene Gruppen von Kindern in den europäischen Kriegs- und Nachkriegsgesellschaften des Zweiten Weltkriegs, "Besatzungskinder" in Deutschland, jugendliche NS-Kollaborateure in Norwegen und neuere Fälle wie Kindersoldat*innen, Flüchtlingskinder und Kinder von europäischen "Islamischen Staat"-Kämpfer*innen. Die Beiträge stammen von internationalen Wissenschaftler*innen und verschiedenen akademischen Disziplinen (Erziehungs- und Sozialwissenschaften, Geisteswissenschaften, Rechtswissenschaften und internationale Friedens- und Konfliktstudien) und basieren auf historischen, quantitativen und/oder qualitativen Analysen
Contactless excitation for electric machines: high temperature superconducting flux pumps
With the intensification of global warming and climate change, the pace of transformation to a neutral-emission society is accelerating. In various sectors, electrification has become the absolute tendency to promote such a movement, where electric machines play an important role in the current power generation system. It is widely convinced that electric machines with very high power density are essential for future applications, which, however, can be hardly achieved by conventional technologies. Owing to the maturation of the second generation (2G) high temperature superconducting (HTS) technologies, it has been recognized that superconducting machine could be a competitive candidate to realize the vision.
One significant obstacle that hinders the implementation of superconducting machines is how to provide the required magnetic fields, or in other words, how to energise them appropriately. Conventional direct injection is not suitable for HTS machines, because the current leads would bridge ambident temperature to the cryogenic environment, which can impose considerable heat load on the system and increase the operational cost. Thus, an efficient energisation method is demanded by HTS machines. As an emerging technology that can accumulate substantial flux in a closed loop without any physical contact, HTS flux pumps have been proposed as a promising solution.
Among the existing developed HTS flux pumps, rotary HTS flux pumps, or so-called HTS dynamo, can output non-zero time-averaged DC voltage and charge the rest of the circuit if a closed loop has been formed. This type of flux pump is often employed together with HTS coils, where the HTS coils can potentially work in the persistent current mode, and act like electromagnets with a considerable magnetic field, having a wide range of applications in industry. The output characteristics of rotary HTS flux pumps have been extensively explored through experiments and finite element method (FEM) simulations, yet the work on constructing statistical models as an alternative approach to capture key characteristics has not been studied. In this thesis, a 2D FEM program has been developed to model the operation of rotary HTS flux pumps and evaluate the effects of different factors on the output voltage through parameter sweeping and analysis of variance. Typical design considerations,
including the operating frequency, air gap, HTS tape width, and remanent flux density have been investigated, in particular, the bilateral effect of HTS tape width has been discovered and explained by looking at the averaged integration of the electric field over the HTS tape. Based on the data obtained from various simulations, regression analysis has been conducted through a collection of machine learning methods. It has been demonstrated that the output voltage of a rotary HTS flux pump can be obtained promptly with satisfactory accuracy via Gaussian process regression, aiming to provide a novel approach for future research and a powerful design tool for industrial applications using rotary HTS flux pumps.
To enhance the applicability of the proposed statistical models, an updated FEM program has been built to take more parameters into account. The newly added parameters, namely the rotor radius and the width of permanent magnet, together with formerly included ones, should have covered all the key design parameters for a rotary HTS flux pump. Based on data collected from the FEM model, a well-trained semi-deep neural network (DNN) model with a back-propagation algorithm has been put forward and validated. The proposed DNN model is capable of quantifying the output voltage of a rotary HTS flux pump instantly with an overall accuracy of 98% with respect to the simulated values with all design parameters explicitly specified. The model possesses a powerful ability to characterize the output behaviour of rotary HTS flux pumps by integrating all design parameters, and the output characteristics of rotary HTS flux pumps have been successfully demonstrated and visualized using this model. Compared to conventional time-consuming FEM-based numerical models, the proposed DNN model has the advantages of fast learning, accurate computation, as well as strong programmability. Therefore, the DNN model can greatly facilitate the design and optimization process for rotary HTS flux pumps. An executable application has been developed accordingly based on the DNN model, which is believed to provide a useful tool for learners and designers of rotary HTS flux pumps.
A new variant inspired by the working principles of rotary HTS flux pumps has been proposed and termed as stationary wave HTS flux pumps. The superiority of this type is that it has a simple structure without any moving components, and it utilises a controllable current-driven electromagnet to provide the required magnetic field. It has been demonstrated that the origin of the output voltage is determined by the asymmetric distribution of the dynamic resistance in the HTS tape, for which the electromagnet must be placed at such a position that its central line is not aligned with that of the HTS tape. A numerical model has
been built to simulate the operation of a stationary wave HTS flux pump, based on which the output characteristics and dynamic resistance against various parameters have been investigated. Besides, accurate and reliable statistical models have been proposed to predict the open circuit voltage and effective dynamic resistance by adapting the previously developed machine learning techniques.
The work presented in this PhD thesis can bring more insight into HTS flux pumps as an emerging promising contactless energisation technology, and the proposed statistical models can be particularly useful for the design and optimization of such devices
Introduction to Psychology
Introduction to Psychology is a modified version of Psychology 2e - OpenStax
AI: Limits and Prospects of Artificial Intelligence
The emergence of artificial intelligence has triggered enthusiasm and promise of boundless opportunities as much as uncertainty about its limits. The contributions to this volume explore the limits of AI, describe the necessary conditions for its functionality, reveal its attendant technical and social problems, and present some existing and potential solutions. At the same time, the contributors highlight the societal and attending economic hopes and fears, utopias and dystopias that are associated with the current and future development of artificial intelligence
‘Inner qualities versus inequalities’: A case study of student change learning about Aboriginal health using sequential, explanatory mixed methods
Racism and lack of self-determination in health care perpetuate injury and injustice to Aboriginal people. To instil cultural safety at individual, organisational, community and systems levels, a key site of action has been health professional education that seeks to elicit reflexivity, cultural humility and a working understanding of Aboriginal health concepts.
Studies in Aboriginal community settings show Family Well Being (FWB) empowerment education is effective in supporting personal and collective reflexivity and transformation through empowering life skills development. Implementation of FWB within educational settings shows early signs of effectiveness among students. Yet knowledge of the steps and processes of student change is lacking.
This mixed methods explanatory case study sought to measure and understand change in postgraduate students of a leading Australian university learning about Aboriginal health and wellbeing through blended delivery, including through face-to-face immersion in FWB in an urban classroom. Three interrelated studies investigated fidelity and acceptability of the program, measured and analysed growth and empowerment in students, and explained processes of change observed, through thematic analysis of asynchronous online discussions using lenses based on transformative learning and empowerment. Researcher reflexivity was promoted by Aboriginal supervision.
Over six years, 194 students enrolled in two different Aboriginal public health courses, 85 of them in the FWB course. As well as achieving program fidelity and acceptability, pre/post-course change in students across a range of emotional empowerment, personal growth and life-long learning processes was measured in the FWB group. Thematic analysis revealed students’ fluid and recursive processes of transformative learning in their professional selves and capacities to act in domains important to Aboriginal health.
This case study contributes new knowledge critical to strengthening health professional capabilities for ever more complex, uncertain and emotionally demanding sites of practice, and to work in empowering ways—with, not for, Aboriginal people and communities
Equipped for Change: A Grounded Theory Study of White Antiracist School Leaders’ Attitudes and Perceptions of Racial Consciousness in Educational Leadership
There is substantial evidence that issues of race and racism and are common in U.S. public schools, especially those greatly impacted by poverty and racial segregation. Unfortunately, it is highly likely many of these occurrences either go unrecognized, unacknowledged, or are perpetrated unknowingly by White educators and administrators—many of whom are well-intentioned, but lack the critical lens necessary in challenging and dismantling them. For White people, the enculturating normativity of White racial dominance, maintained by the social conditioning of Whiteness, facilitates an environment of racial ignorance and insignificance, leaving most painfully oblivious to the damaging complexities of racism in contemporary American society. The purpose of this qualitative study is to illuminate the perceptions and experiences of selected White school leaders who have committed themselves to (a) antiracist school leadership identity development, and (b) the promotion of racially-just school cultures. Responses to semi-structured interview questions were coded, analyzed, and organized into themes to generate an educational leadership theory. Constructivist grounded theory (CGT) methodologies, critical race theory (CRT), critical whiteness studies (CWS), and critical pedagogy (CP) informed the data collection methods and theoretical foundations of this study. Findings revealed a need to reexamine and revise existing antiracist education psychology and pedagogy with an emphasis on cohesion and clarity of purpose. This study contributes new knowledge and insight into the struggle to successfully implement effective, sustainable antiracist school efforts capable of establishing and normalizing racial equity in public education
The Quality of Democracy Embedded into Political Culture - A Comparative Study of Luxembourg, Hungary, and the United Kingdom
The thesis focuses on three main questions: the quality of democracy, democratic backsliding, political culture, and the relationship among them. The theoretical basis of the thesis starts with the quality of democracy model of Larry Diamond and Leonardo Morlino. The theoretical purpose of the research is to reconceptualise the quality of democracy and embed it into political culture to find answers to democratic stagnation and backsliding experienced in European states today. To achieve this objective, the thesis offers a four-level model of political culture that provides a foundation for explaining the links among different aspects of political culture and factors of democratic quality. Additionally, the thesis proposes a two-fold hierarchical interpretation of the factors of the quality of democracy to define the deficiency needs of democratic functioning. The main hypotheses cover the connections among the three factors mentioned above. The first hypothesis focuses on the continuity and fragmentation of political culture as explanatory factors that play a crucial role in the thesis. The second hypothesis examines the ‘citizen dimension’ of democratic quality and its impact on democratic stability through factors such as the citizens’ interest in the political dynamics of their own country, their perceptions of their democracy, and their confidence in democratic institutions. The third hypothesis investigates the potential reasons and levels of democratic stagnation and backsliding in democracies, arguing that political culture and the weakening of the rule of law are the main influencing factors, as the latter serves as the basis and guarantee for the other factors of the quality of democracy. The empirical research is based on a comparative analysis of the quality of democracy in three European countries with fundamentally different democratic systems and traditions of democratic evolution: Luxembourg, the UK, and Hungary. The methodology used is based on the most-different cases with similar results model
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