387 research outputs found

    Implementation of e-learning into the Process Security Education in Universities

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    AbstractThe article provides assessment of the significance of the e-learning implementation, as one of the most modern methods of teaching, using information technology in security education. The implementation is based on the main idea of e-learning, it means, that it is necessary to provide free and unrestricted access for students towards their education. If we want the society to take advantage of security education as an intensive factor of economic and social growth, it is important to know the manner of applying such methods, forms and means, the intensity and the circumstances necessary to impact on the learners, in order to achieve the final efficiency of education

    Modeling Default Probability via Structural Models of Credit Risk in Context of Emerging Markets

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    The chapter is focused on the structural models of credit risk introducing basic concepts of risk-neutral world, as well as models and different options for the credit risk quantification. An important part is also the introduction of structural approach for credit risk modeling. Furthermore, the chapter presents basic division of structural models and then presents mathematical derivation of individual apparatuses of models. Among tested models are Merton model, KMV model, Black-Cox model, and Credit Grades model. The practical part is focused on the application of these models under the conditions of local emerging market—Slovakia. Additionally, it pointed out the connection between default probability and credit spreads generated with the use of default mode credit risk models. The main objective is to adjust credit risk model to real market data

    Noncoding RNAs as Predictive Biomarkers of Therapeutic Response to Tyrosine Kinase Inhibitors in Metastatic Cancer

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    Since their discovery, noncoding RNAs have acquired extensive attention due to their eminent role in the regulation of gene expression and thus also in the pathogenesis of many diseases. Currently, strong evidence is showing that noncoding RNAs are integral parts of key cancer-related cellular pathways, and the deregulation of their levels is pathogenetic on one hand but feasible as a biomarker of pathogenesis itself on the other hand. In cancer, diagnosis, prognosis, and prediction of therapy outcome can be derived from levels of various noncoding RNAs. This chapter is focused on potential application of noncoding RNAs in prediction of therapeutic response to tyrosine kinase inhibitors commonly used as targeted therapy in a wide range of metastatic cancers

    Clinical psychologists’ constructions of their work with children

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    This study adopts a discursive psychological approach to an analysis of interviews with nine clinical psychologists on the subject of their work with children in NHS-based Child and Adolescent Mental Health Services. The objective of the study was to explore how child clinical psychologists talk about their work, with a particular focus on the discursive and interactional aspects of the discourse, and participants’ orienting to, and providing justifications for, the morally dubious status of the various practices that they described in their talk. The analysis delineates complex rhetorical strategies of accountability management in talk about practices depicted as potentially problematic. These included: (1) the ‘severe end’ rhetorical device that functioned to warrant the use of medication; (2) the minimisation strategy that was used to manage diagnostic problems by constructing diagnoses in a minimal or safer manner; (3) normalisation techniques which served to downplay and re-define contested practices as less problematic or indeed as positive; (4) doing ‘being democratic’ that constructed troubling practice as democratic; (5) employing ‘maxims of practical politics’ that seemed to legitimise contested practices by invoking liberal and pragmatic arguments; and (6) the discursive move of redirecting accountability to service users or the institution. The discursive analysis of the extended accounts also demonstrated how participants oriented to notions of the moral nature of their practice and their morally adequate personal and professional identities. The results of this study indicate that clinical psychologists face a moral quandary, suggesting that perhaps clinical psychology practice, particularly with children whose distress or behaviour is conceptualised as mental illness, entails a constant grappling with moral issues. Implications for clinical practice are discussed in light of the analysis

    Correlation between electric-field-induced phase transition and piezoelectricity in lead zirconate titanate films

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    We observed that electric field induces phase transition from tetragonal to rhombohedral in polycrystalline morphotropic lead zirconate titanate (PZT) films, as reported in 2011 for bulk PZT. Moreover, we evidenced that this field-induced phase transition is strongly correlated with PZT film piezoelectric properties, that is to say the larger the phase transition, the larger the longitudinal piezoelectric coefficient d 33,eff . Although d 33,eff is already comprised between as 150 to 170 pm/V, our observation suggests that one could obtain larger d 33,eff values, namely 250 pm/V, by optimizing the field-induced phase transition thanks to composition fine tuning

    Der Medienalltag 3 - 6Jähriger aus Sicht des Mediengenerationenbegriffs von Burkhard Schäffer

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    Dass der Alltag von Jugendlichen, Erwachsenenen und Senioren oftmals ein Medienalltag ist und sich der Zugang dieser drei Generationen zu Medien deutlich differenziert, hat Burkhard Schäffer in seiner 2003 veröffentlichten Studie dargestellt, indem er die drei Mediengeneration nachgezeichnet hat. Der Medienalltag 3-6jähriger Kinder war dagegen bis vor kurzem unerforscht, obwohl auch hier gilt: „Kinderalltag ist Medienalltag. Das ist für drei- bis sechs jährige Kinder ganz normal“ (Swertz/Kovacova 2012: 5). Mediengarten, ein 2009-2011 durchgeführtes Projekt der Wiener Medienpädagogik, stellte die Frage, wie 3-6Jährige Kinder ihren Medienalltag selbst verstehen. In der vorliegenden Diplomarbeit wird das Projekt Mediengarten vorgestellt, die Datenerhebung und die Ergebnisse präsentiert und im Hinblick auf die Mediengenerationentheorie von Schäffer interpretiert. Die Forschungsfrage, welche dieser Arbeit zu Grunde liegt lautet: „ Kann durch den Begriff der Mediengeneration nach Burkhard Schäffer die Medienkultur drei bis sechs Jähriger verstanden werden? Es wird anhand von sieben aus dem Projekt Mediengarten ausgewählten Fällen gezeigt, dass der Medienalltag 3-6Jähriger nicht als ein Milieu zu fassen ist, sondern eher als durch das Generationenverhältnis im Sinne eines pädagogischen Erziehungsverhältnisses zwischen Erwachsenen und Kindern bestimmt zu verstehen ist. Hierfür werden die Fälle, welche jeweils aus einem Interview und einer angefertigten Zeichnung oder Kollage des Kindes bestehen, analysiert und anhand der Leitdimensionen, wie dem Ausdruck des Eindrucks im Bild und Interview, der Generationendifferenz, der generationsspezifischen Medienpraxiskultur und der genrationellen Bildungsprozesse analysiert. Die Diskussion der Ergebnisse zeigt sieben Einzelfälle, welche sich anhand ihres Medienalltags alle voneinander unterscheiden und sich als Milieus darstellen lassen. Zusätzlich wird ein Kindheitsraum skizziert, welcher sich durch den spezifischen Umgang mit Medien in den einzelnen Familien generiert

    Unmanned aerial systems: Status and Forthcoming challenges for Safety Risk Management

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    Urban Air Mobility (UAM) promises a revolution in urban transportation: for the first time ever, cities will be able to use the third dimension for their mobility needs. The traditional aviation industry and high-tech newcomers alike are making huge investments to make this - still unproven - technology a reality. Although Unmanned Aerial Systems (UAS) have now for some time been used in segregated airspace where separation from other air traffic can be assured, potential users have interests to deploy UAS in non-segregated airspaces. Recent technological and operational improvements give reason to believe that UAS safety and performance capabilities are maturing. However, there is still the need for establishing a systematic agreement between UAS safety policies with commonly accepted UAS Safety Risk Management processes. This agreement is needed to show that the risks related to UAS operations in all the different airspace classes can be adequately controlled in a way that would not jeopardize current safety levels and safety mitigations effectiveness. This study aims to investigate the current status of UAS operations and future concepts of operations with specific interest in the management of safety risk. This manuscript aims to summarize some of regulatory aspects currently available linked to safety investigation and reporting of drone operations and consequently draw some potential lines for future research

    Influence of Wooden Sawdust Treatments on Cu(II) and Zn(II) Removal from Water

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    Organic waste materials and semi-products containing cellulose are used as low-cost adsorbents that are able to compete with conventional sorbents. In addition, their capacity to bind heavy metal ions can be intensified by chemical treatments using mineral and organic acids, bases, oxidizing agents, and organic compounds. In this paper, we studied the biosorption capacity of natural and modified wooden sawdust of poplar, cherry, spruce, and hornbeam in order to remove heavy metals from acidic model solutions. The Fourier transform infrared spectroscopy (FTIR) spectra showed changes of the functional groups due to the alkaline modification of sawdust, which manifested in the considerably increased intensity of the hydroxyl peaks. The adsorption isotherm models clearly indicated that the adsorptive behavior of metal ions in treated sawdust satisfied not only the Langmuir model, but also the Freundlich model. The adsorption data obtained for studied sorbents were better fitted by the Langmuir isotherm model for both metals, except for spruce sawdust. Surface complexation and ion exchange are the major mechanisms involved in metal ion removal. We investigated the efficiency of the alkaline modified sawdust for metal removal under various initial concentrations of Cu(II) and Zn(II) from model solutions. The highest adsorption efficiency values (copper 94.3% at pH 6.8 and zinc 98.2% at pH 7.3) were obtained for poplar modified by KOH. For all types of sawdust, we found that the sorption efficiency of modified sorbents was higher in comparison to untreated sawdust. The value of the pH initially increased more in the case of modified sawdust (8.2 for zinc removal with spruce NaOH) and then slowly decreased (7.0 for Zn(II) with spruce NaOH).This research was funded by Scientific Grant Agency of the Ministry of Education, Science, Research, and Sport of the Slovak Republic and the Slovak Academy of Sciences, grant number 1/0419/19 and grant number 1/0326/18
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