28,261 research outputs found
Psychological Aspects of Learning in Virtual Space
Get PDFThe article of I. Lukashenko, O. Lutsenko “Psychological aspects of learning in the virtual environment” is aimed to analyze psychological aspects of people learning and functioning in the virtual environment. It was analyzed a number of researches which highlights such psychological aspects of people’s functioning in the virtual environment as motivational, cognitive, age-related, pedagogical, social, clinical, gender, psychophysiological and other ones. There are several advantages of Internet-learning in compare with traditional one – decrease of pedagogical authoritarianism, increase of learners independence, their higher responsibility for their learning, expanding the boundaries of learning, time economy etc. At the same time the Internet is characterized by specifics, which may make potential threats to the successful learning in it. These include addictions forming, identity violations, problems with the information defense, deterioration of communication quality, the development of deviations and specific psychopathology. Interaction with psychologists is desired during the development of distance learning courses to improve their efficiency and for its implementation at the time of appearing above mentioned problems
Psychological Aspects of Learning in Virtual Space
No full textThe article of I. Lukashenko, O. Lutsenko “Psychological aspects of learning in the virtual environment” is aimed to analyze psychological aspects of people learning and functioning in the virtual environment. It was analyzed a number of researches which highlights such psychological aspects of people’s functioning in the virtual environment as motivational, cognitive, age-related, pedagogical, social, clinical, gender, psychophysiological and other ones. There are several advantages of Internet-learning in compare with traditional one – decrease of pedagogical authoritarianism, increase of learners independence, their higher responsibility for their learning, expanding the boundaries of learning, time economy etc. At the same time the Internet is characterized by specifics, which may make potential threats to the successful learning in it. These include addictions forming, identity violations, problems with the information defense, deterioration of communication quality, the development of deviations and specific psychopathology. Interaction with psychologists is desired during the development of distance learning courses to improve their efficiency and for its implementation at the time of appearing above mentioned problems
Characteristics of lifestyle and attitudes toward motherhood of surrogate mothers in Ukraine
No full textСтаття О.Л. Луценко, В.Р. Цокоти «Особливості способу життя та ставлення до материнства у сурогатних матерів в Україні» націлена на вивчення суб’єктивного ставлення майбутніх сурогатних матерів до вагітності та сурогатного материнства. До завдань дослідження відносилося виявлення особливостей їх соціальної ситуації, способу життя, вольових, моральних, емоційних і мотиваційних якостей, що можуть частково обумовлювати рішення стати сурогатною матерю. 28 жінок, включених у програму сурогатного материнства та три групи порівняння з 20-ма особами в кожній (жінки без дітей, з 1-2 дітьми та багатодітні) відповіли на авторське напівструктуроване інтерв’ю з 25 питань. Виявилося, що майбутні сурогатні матері відрізняються від груп порівняння меншим рівнем освіти, більш частою відсутністю чоловіка або розлученням в сімейній ситуації, недостатньо задовільними житловими умовами, браком матеріального забезпечення. Вони менш ранимі, не схильні до тривалих негативних емоційних станів, мають менше страхів, пов’язаних з вагітністю та пологами, набагато більш позитивно ставляться до сурогатного материнства.The article of O. Lutsenko, V. Tsokota “The characteristics of lifestyle and attitudes to motherhood of surrogate mothers in Ukraine” is aimed to study surrogate mothers’ attitudes to pregnancy and surrogate motherhood. The objectives of the study were to identify the characteristics of their social situation, lifestyle, volitional, moral, emotional and motivational qualities that can partially determine the decision to become a surrogate mother. 28 women included in the program of surrogate motherhood and three comparison groups of 20 people (the women without children, with 1-2 children and with many children) were interviewed using a semi-structured authors’ interview of the 25 questions. It was found that the prospective surrogate mothers differ from comparison groups by less education, more frequent absence of husband or divorce in the family situation, not entirely satisfactory living conditions, lack of material support. They are less vulnerable, are not prone to long-term negative emotional states, have fewer fears associated with pregnancy and childbirth, and are much more positive about the surrogacy
Characteristics of lifestyle and attitudes toward motherhood of surrogate mothers in Ukraine
Get PDFСтаття О.Л. Луценко, В.Р. Цокоти «Особливості способу життя та ставлення до материнства у сурогатних матерів в Україні» націлена на вивчення суб’єктивного ставлення майбутніх сурогатних матерів до вагітності та сурогатного материнства. До завдань дослідження відносилося виявлення особливостей їх соціальної ситуації, способу життя, вольових, моральних, емоційних і мотиваційних якостей, що можуть частково обумовлювати рішення стати сурогатною матерю. 28 жінок, включених у програму сурогатного материнства та три групи порівняння з 20-ма особами в кожній (жінки без дітей, з 1-2 дітьми та багатодітні) відповіли на авторське напівструктуроване інтерв’ю з 25 питань. Виявилося, що майбутні сурогатні матері відрізняються від груп порівняння меншим рівнем освіти, більш частою відсутністю чоловіка або розлученням в сімейній ситуації, недостатньо задовільними житловими умовами, браком матеріального забезпечення. Вони менш ранимі, не схильні до тривалих негативних емоційних станів, мають менше страхів, пов’язаних з вагітністю та пологами, набагато більш позитивно ставляться до сурогатного материнства.The article of O. Lutsenko, V. Tsokota “The characteristics of lifestyle and attitudes to motherhood of surrogate mothers in Ukraine” is aimed to study surrogate mothers’ attitudes to pregnancy and surrogate motherhood. The objectives of the study were to identify the characteristics of their social situation, lifestyle, volitional, moral, emotional and motivational qualities that can partially determine the decision to become a surrogate mother. 28 women included in the program of surrogate motherhood and three comparison groups of 20 people (the women without children, with 1-2 children and with many children) were interviewed using a semi-structured authors’ interview of the 25 questions. It was found that the prospective surrogate mothers differ from comparison groups by less education, more frequent absence of husband or divorce in the family situation, not entirely satisfactory living conditions, lack of material support. They are less vulnerable, are not prone to long-term negative emotional states, have fewer fears associated with pregnancy and childbirth, and are much more positive about the surrogacy
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Probabilistic framework to evaluate the resilience of engineering systems using Bayesian and dynamic Bayesian networks
Get PDFResilience indicators are a convenient tool to assess the resilience of engineering systems. They are often used in preliminary designs or in the assessment of complex systems. This paper introduces a novel approach to assess the time-dependent resilience of engineering systems using resilience indicators. A Bayesian network (BN) approach is employed to handle the relationships among the indicators. BN is known for its capability of handling causal dependencies between different variables in probabilistic terms. However, the use of BN is limited to static systems that are in a state of equilibrium. Being at equilibrium is often not the case because most engineering systems are dynamic in nature as their performance fluctuates with time, especially after disturbing events (e.g. natural disasters). Therefore, the temporal dimension is tackled in this work using the Dynamic Bayesian Network (DBN). DBN extends the classical BN by adding the time dimension. It permits the interaction among variables at different time steps. It can be used to track the evolution of a system's performance given an evidence recorded at a previous time step. This allows predicting the resilience state of a system given its initial condition. A mathematical probabilistic framework based on the DBN is developed to model the resilience of dynamic engineering systems. Two illustrative examples are presented in the paper to demonstrate the applicability of the introduced framework. One example evaluates the resilience of Brazil. The other one evaluates the resilience of a transportation system.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Integral Design & Managemen
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Resourcefulness quantification approach for resilient communities and countries
Get PDFAvailability of resources is one of the primary criteria for communities to attain a high resilience level during disaster events. This paper introduces a new approach to evaluate resourcefulness at the community and national scales. Resourcefulness is calculated using a proposed composite resourcefulness index, which is a combination of several resourcefulness indicators. To build the resourcefulness index, resourcefulness indicators representing the different aspects of resourcefulness are collected from renowned literary publications. Every indicator is assigned a measure to make it quantifiable. Time-history data for the measures are needed to perform the analysis. While these data could be obtained from different sources, acquiring a full set of data is quite challenging. Hence, to account for missing data, the Multiple Imputation (MI) and the Markov Chain Monte Carlo (MCMC) data imputation methods are adopted. The data are then normalized, assigned weights, and aggregated to obtain the resourcefulness index. A case study is performed to demonstrate the applicability of the approach. The resourcefulness indexes of two countries, namely the United States and Italy, are evaluated. Results show that resourceful communities/countries are more resilient during disaster events as they have more tools to come up with solutions. It is also shown that knowing the current resourcefulness level helps in better identifying what aspects should be improved.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Integral Design & Managemen
A 2 h periodic variation in the low-mass X-ray binary Ser X-1
No full textSpectroscopy of the low-mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ?2 h periodic variability that is present in the three strongest emission lines. We tentatively interpret this variability as due to orbital motion, making it the first indication of the orbital period of Ser X-1. Together with the fact that the emission lines are remarkably narrow, but still resolved, we show that a main-sequence K dwarf together with a canonical 1.4 M? neutron star gives a good description of the system. In this scenario, the most likely place for the emission lines to arise is the accretion disc, instead of a localized region in the binary (such as the irradiated surface or the stream-impact point), and their narrowness is due instead to the low inclination (?10°) of Ser X-1
Self-archiving practice and the influence of publisher policies in the social sciences
No full textAuthors in different disciplines exhibit very different behaviours on the so-called ‘green’ road to open access, i.e. self-archiving. This study looks at the self-archiving behaviour of authors publishing in leading journals in six social science disciplines. It tests the hypothesis that authors are self-archiving according to the norms of their respective disciplines rather than following self-archiving policies of publishers, and that, as a result, they are self-archiving significant numbers of publisher PDF versions. It finds significant levels of
self-archiving, as well as significant self-archiving of
the publisher PDF version, in all the disciplines
investigated. Publishers’ self-archiving policies have
no influence on author self-archiving practice
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