VALIDATION OF A TEST FOR THE STUDY OF VIOLENCE AMONG ATHLETES

The lack of a validated methodology severely hampers the study of violence among athletes. Questionnaires and surveys with unproven psychometric characteristics used in various studies cast doubt on the results obtained. The current study presents the results of the construction of a test to investigate violence among athletes. The test is based on the questionnaire for the study of violence among athletes proposed by Vertommen et al. (2016), as its final version is a modified methodology. The study includes 314 current and former athletes. The survey was conducted online. Exploratory and confirmatory factor analysis were applied to the empirical data. The analysis results provide the basis for adopting a two-factor test structure with corresponding physical and emotional abuse subscales

One-Dimensional Multi-Subband Monte Carlo Simulation of Charge Transport in Si Nanowire Transistors

In this paper, we employ a newly-developed one-dimensional multi-subband Monte Carlo (1DMSMC) simulation module to study electron transport in nanowire structures. The 1DMSMC simulation module is integrated into the GSS TCAD simulator GARAND coupling a MC electron trajectory simulation with a 3D Poisson-2D Schrödinger solver, and accounting for the modified acoustic phonon, optical phonon, and surface roughness scattering mechanisms. We apply the simulator to investigate the effect of the overlap factor, scattering mechanisms, material and geometrical properties on the mobility in silicon nanowire field-effect transistors (NWTs). This paper emphasizes the importance of using 1D models that include correctly quantum confinement and allow for a reliable prediction of the performance of NWTs at the scaling limits. Our simulator is a valuable tool for providing optimal designs for ultra-scaled NWTs, in terms of performance and reliability

Implantological treatment of toothless jaws with locators and complete dentures

Развитието на технологиите и материалите в денталната медицина и тяхното приложение създадоха много нови възможности за подобряване на зъбната естетика, като все по-често се използват техники с никакви или минимални отнемания на твърда зъбна тъкан, като част от стремежа е да се постигнат красиви и съразмерни, добре изглеждащи, функционално ефективни зъби за цял живот. Локаторите са специфични надстройки за импланти, които позволяват ефективното задържане на снемаеми протезни конструкции. Разбира се, има изисквания и към местата на поставяне на имплантите. Най-често са приложими за долна челюст в предния участък, като се поставят минимум два, a най-добре четири импланта, които да са взаимно успоредни и на симетрични места. Предимство на локаторно задържаните протезни конструкции е лесната им поддръжка от хигиенна гледна точка, особено от възрастни пациенти. В настоящия доклад ще се представи клиничен случай на съвременно дентално лечение при тежка атрофия на челюстните кости. Поставянето на импланти е възможно само в областта на брадичката на долна челюст, където все още има запазена кост с достатъчна височина. Лечебният план включва поставяне на 4 броя импланти на долна челюст едновременно с екстрахиране на непълноценното остатъчно съзъбие и изработване след 4 месеца на снемаема протеза със задръжни елементи тип локатори и нова тотална протеза на горна челюст. Протезите са изработени от термопластична пластмаса VERTEX Thermosens.The development of technologies and materials in dentistry and their application have created many new opportunities for improving dental aesthetics, with the use of techniques with no or minimal rigid dental tissue utilization, as part of the quest to achieve beautiful and proportionate good-looking, functionally effective teeth for life. Locators are specific implant superstructures that allow effective retention of removable prosthetic structures. Certainly, there are also requirements for the placement of implants. Most commonly they are applicable to the lower jaw in the anterior stretch by placing at least two, and most preferably four, implants that are mutually parallel and symmetrical. An advantage of locally retained prosthetic structures is their easy maintenance from a hygienic point of view, especially from elderly patients. This report will present a clinical case of contemporary dental treatment for severe atrophy of the jawbone. Implant placement is possible only in the area of the chin of the lower jaw where there is still preserved bone of sufficient height. The treatment plan includes placing 4 implants on the lower jaw together with extraction of the minor residual dentition and production, after 4 months, of a removable denture with locator-type locking elements and new complete upper jaw dentures. The dentures are made of thermoplastic VERTEX ThermoSens

Share.TEC System Architecture

This paper presents the Share.TEC system architecture and the first system prototype. This description stresses on the main system components and underlying technologies, standards and protocols. The main system functionalities are following logically from the main use cases and user requirements. The system design allows a tight integration between data, which have been automatically harvested from various external repositories, and a representation of the ontology that describes all aspects of the teacher education domain. The proposed implementation relies on modern features such as searching a net of digital objects interconnected by custom-defined relations. A multicultural system which accommodates to the user preferences requires specific user interface. The dynamic approach for presenting the information to the user, based on the teacher education ontology, contributes to the flexibility of the system

Share.TEC Repository System

The Share.TEC system has the main goal to establish a highly visible and functional portal with advanced brokerage services that will provide personalised access to a wide-range of Teacher Education (TE) content. The heart of the Share.TEC system is the central repository, storing metadata about TE resources. In this paper we describe the design of the digital Share.TEC repository, providing the more flexible and powerful ways for representing Common Metadata Model (CMM) metadata records and objects from the Teacher Education Ontology (TEO), and ensuring the most efficient and comprehensive search and reasoning abilities, as the key factors for the success of the Share.TEC project. We describe the data models for representing CMM and TEO, as well as the processes ensuring their correct coexistence

ADDITIVE LASER BARCODE PRINTING ON HIGH REFLECTIVE STAINLESS STEEL

In this paper, the process of an additive laser marking on stainless steel parts for barcode printing is presented. It is based on the use of one transition metal oxide chemically-well bonded to the stainless steel substrate, without a usage of any additional materials and cleaning substances. The resulting additive coatings, produced from initial MoO3 powder by irradiation with a laser beam, reveal strong adhesion, high hardness, long durability and high optical contrast, which make the process suitable for barcode printing on materials such as high reflective stainless steel, which was always a challenge for the classical laser marking technologies. The obtained bar patterns are in a compliance with the requirements of the existing standards

A Multi-Scale Simulation Study of the Strained Si Nanowire FETs

In this work, we study 2.1nm-diameter uniaxial strained Si gate-all-around nanowire field-effect transistors, focusing on the electron mobility and the variability due to random discrete dopants (RDDs). Firstly, we extract the electron effective masses under various strains from Density Functional Theory (DFT) simulations. Secondly, we present the impact of the strain on the electron mobility in the Si nanowire using the Kubo-Greenwood formalism with a set of multi-subband phonon, surface roughness, and ionized impurity scattering mechanisms. Finally, we perform quantum transport simulations to investigate the effect of RDD on the threshold voltage and ON-state current variation

Mobility of circular and elliptical si nanowire transistors using a multi-subband 1d formalism

We have studied the impact of the cross-sectional shape on the electron mobility of n-type silicon nanowire transistors (NWTs). We have considered circular and elliptical cross-section NWTs including the most relevant multisubband scattering processes involving phonon, surface roughness, and impurity scattering. For this purpose, we use a flexible simulation framework, coupling 3D Poisson and 2D Schrödinger solvers with the semi-classical Kubo-Greenwood formalism. Moreover, we consider cross-section dependent effective masses calculated from tight binding simulations. Our results show significant mobility improvement in the elliptic NWTs in comparison to the circular one for both 100 and 110 transport directions

Transition metal oxides as materials for additive laser marking on stainless steel

The product information plays an important role in the improvement of the manufacturing, allowing the tracking of the part through the full life cycle. Laser marking is one of the most versatile techniques for this purpose. In this paper, a modification of the powder bed selective laser melting for additive laser marking of stainless steel parts is presented. This modification is based on the use of only one transition metal oxide chemically bonded to the stainless steel substrate, without using any additional materials and cleaning substances. The resulting additive coatings, produced from initial MoO₃ and WO₃ powders, show strong adhesion, high hardness, long durability and a high optical contrast. For estimation of the chemical and structural properties, the Raman and X-Ray Diffraction (XRD) spectroscopy have been implemented. A computer model of the process of the laser melting and re-solidification has been developed as well. A comparative analysis of the properties of both (MoO₃ and WO₃) additive coatings has been performed. An attempt for a qualitative explanation of the thermo-chemical phenomena during the marking process has been undertaken

Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat