Suchergebnisse

This paper is concerned with the development of approaches for assessment of core debris heat transfer and Control Rod Guide Tube (CRGT) cooling effectiveness in case of a Boiling Water Reactor (BWR) severe accident. We consider a hypothetical scenario with stratified (metal layer atop) melt pool in the lower plenum. Effective Convectivity Model (ECM) and Phase-Change ECM (PECM) are developed for the modeling of molten metal layer heat transfer. The PECM model takes into account reduced convection heat transfer in mushy zone and compositional convection that enables simulations of noneutectic binary mixture solidification and melting. The ECM and PECM are (i) validated against relevant experiments for both eutectic and noneutectic mixtures and (ii) benchmarked against CFD-generated data including the local heat transfer characteristics. The PECM is then applied to the analysis of heat transfer in a stratified heterogeneous debris pool taking into account CRGT cooling. The PECM simulation results show apparent efficacy of the CRGT cooling which can be utilized as Severe Accident Management (SAM) measure to protect the vessel wall from focusing effect caused by metallic layer.

Bleibt Iran im Atomstreit unnachgiebig und stellt nicht, wie von der Internationalen Atomenergie-Behörde (IAEA) gefordert, erneut alle der Urananreicherung dienenden Aktivitäten ein, dann werden die USA auf Sanktionen drängen. Doch welche Sanktio-nen stehen zur Verfügung? Welche Probleme sind damit verbunden? Wie effektiv können solche Sanktionen sein? Wie wären sie strategisch sinnvoll einzusetzen? (SWP-aktuell / SWP)

Expatriation is still a challenging task, although the determinants of expatriate adjustment and performance have been evaluated extensively. This study aimed to empirically investigate the influence of the expatriates' personality and cross-cultural competence on social capital, cross-cultural adjustment, and performance with expatriates from foreign-owned multination firms in Taiwan. This study integrated three perspectives to explain expatriate success and failure. The first perspective involves expatriate-related factors, including the Big Five personality traits, and the emotional intelligence (otherwise known as emotional quotient or EQ) of expatriates. The second perspective is cross-cultural competence factors, including cultural intelligence, cultural adaptability, and cultural empathy. The third perspective is the social capital of expatriates, which includes leader-member exchange (LMX), perceived organizational support (POS). Furthermore, this study incorporated these perspectives into antecedents and identified their individual and combined effects on expatriates' cross-cultural adjustment and performance. The findings of this study may be helpful for human resource managers in managing their expatriates. The findings may also help academicians in exploring expatriate management.

There are some sets of sustainable development indicators (SDIs) at different regional scales and the Millennium development goals indicators (MDGIs) and Sustainable Development Goals (SDGIs) are employed in Vietnam. Actually, building and applying SDIs have faced different difficulties and this has led to a reduction in their value. Solutions to improve SDIs have been proposed and completed. This paper aims to review the SDIs, MDGIs, and SDGIs in Vietnam and to propose recommendations for building and effectively applying them in practice in Vietnam. Two national SDIs, one regional SDI, one local SDI, and some provincial SDIs, in addition to the results of MDGIs/SDGIs implementation, were analyzed. The common limitation of Government promulgated SDIs was found to not be feasible as they are applied in practice. Proposed solutions are building pilot SDIs for specific regions in Vietnam based on UN guidelines from 2007 and calculating practical values of SDIs for pilot regions, subsequently recommending relevant authorities in Vietnam to change or adjust promulgated SDIs. The experiences of procedure used to develop the pilot SDIs and effective handing over the usage of SDIs to stakeholders should also be considered when developing the sustainable development goals indicators in the future.

In recent years, career decision-making has attracted research attention, especially choosing careers among graduates. Making informed and appropriate career choices are positively related to work performance and career success. The present study investigates the factors influencing career choice among social work graduates. A sample of 417 social work graduates was recruited to complete the survey. Descriptive analysis, Pearson correlation, and multiple linear regression were used to analyze the data. Our results show that there is a positive correlation between environmental, interpersonal, institutional, external, internal factors and career choice. Additionally, multiple regression analysis indicates that external and internal factors influence career choice among graduates. The present findings contribute to the general discussion about the influential factors in graduates' career choices. University administrators must develop career guidance and counseling programs more broadly in universities to support graduates in making appropriate career choices.

Received: 27 December 2021 / Accepted: 31 March 2022 / Published: 5 May 2022

Evidence-based practice in psychology (EBPP) improves public health and makes it easier for psychologists to do their jobs well by using case formulation, intervention, and therapeutic relationship principles that have been shown to work in the real world. The utilization of evidence-based practice in the field of psychology has been widely regarded as the most effective approach for researchers and practitioners to incorporate current data into their therapeutic practice and decision-making processes. The objective of this study was to investigate attitudes towards EBPP and assess the level of exposure to evidence-based practice and evidence-based therapies in the corresponding training program among students. A cohort of 250 undergraduate students pursuing a degree in psychology were enlisted to participate in the survey. The research employed quantitative methodologies, specifically one-way ANOVA, Pearson correlation, and regression analysis, to examine and interpret the collected data. The favorable influence of students' judgments of the sufficiency of training in different components of clinical expertise and exposure to evidence-based practice (EBP) and evidence-based treatments (EBTs) in their respective training program can be observed in students' experiences and attitudes towards EBP in psychology. The findings derived from the present study provide compelling evidence supporting the imperative of implementing educational interventions aimed at enhancing the research knowledge and skills of psychology students, as well as their ability to effectively utilize research in their academic pursuits.

Diabetic foot ulcers (DFU) are a prevalent and severe disease with vascular and/or neurological complications, and if not diagnosed and treated promptly, it may rapidly deteriorate. Despite amputation or nonamputation treatment, there is still a high rate of re-ulceration. Previous studies have shown that the recurrence rate varies from 43% to 59% after 2 years. Currently, there is still a high rate of lower extremity amputation intervention, particularly above-the-ankle amputation, at Cho Ray Hospital in Vietnam, reaching 50%. The effectiveness of this intervention in the long term based on re-ulceration has not been evaluated in Vietnamese diabetic patients (DPs). This study aims to describe the long-term outcomes of amputation intervention in Type 2 DPs after 24 months and identify factors related to DFU recurrence in order to improve DFU management in low-middle-income countries like Vietnam. From January to June 2022, archived clinical and direct visit or phone follow-up data were collected and analyzed from diabetic foot ulcer patients with low extremity amputation who were treated at Cho Ray hospital from 2018 to 2020. The high re-ulceration rate in the 24th month was 29.8% (17/57), and the factor related to this outcome was "late diagnosis and care" (32.4 days vs 26.9 days with P = .03). Other potential factors (higher rates but no significant statistical difference with P > .05) included failure of HbA1c control greater than 9% (82.5% vs 67.5%), the severity of foot ulcers with TEXAS 3B (82% vs 60%), the number of years having diabetes (8.7 years vs 6.7 years), loss of monofilament sensation (82.5% vs 70.6%), and a history of diabetic foot ulcer (17.6% vs 10%). The re-ulceration after 24 months might depend on various clinical factors. Therefore, early diagnosis and care for diabetic foot ulcers could help reduce amputation rates and the risk of re-ulceration.

Newborn screening (NBS) in Alberta is delivered by a number of government and health service entities who work together to provide newborn screening to infants born in Alberta, the Northwest Territories, and the Kitikmeot region of the Nunavut territory. The Alberta panel screens for 21 disorders (16 metabolic, two endocrine, cystic fibrosis, severe combined immunodeficiency, and sickle cell disease). NBS is a standard of care, but is not mandatory. NBS performance is monitored by the Alberta Newborn Metabolic Screening (NMS) Program and NMS Laboratory, who strive for continuous quality improvement. Performance analysis found that over 99% of registered infants in Alberta received a newborn screen and over 98% of these infants received a screen result within 10 days of age.

Background Carbapenem-resistant Enterobacteriaceae (CRE) is an increasing problem worldwide, but particularly problematic in low- and middle-income countries (LMIC) due to limitations of resources for surveillance of CRE and infection prevention and control (IPC). Methods A point prevalence survey (PPS) with screening for colonisation with CRE was conducted on 2233 patients admitted to neonatal, paediatric and adult care at 12 Vietnamese hospitals located in northern, central and southern Vietnam during 2017 and 2018. CRE colonisation was determined by culturing of faecal specimens on selective agar for CRE. Risk factors for CRE colonisation were evaluated. A CRE admission and discharge screening sub-study was conducted among one of the most vulnerable patient groups; infants treated at an 80-bed Neonatal ICU from March throughout June 2017 to assess CRE acquisition, hospital-acquired infection (HAI) and treatment outcome. Results A total of 1165 (52%) patients were colonised with CRE, most commonly Klebsiella pneumoniae (n=805), Escherichia coli (n=682) and Enterobacter spp. (n=61). Duration of hospital stay, HAI and treatment with a carbapenem were independent risk factors for CRE colonisation. The PPS showed that the prevalence of CRE colonisation increased on average 4.2 % per day and mean CRE colonisation rates increased from 13% on the day of admission to 89% at day 15 of hospital stay. At the NICU CRE colonisation increased from 32% at admission to 87% at discharge, mortality was significantly associated (OR 5•5, P < 0•01) with CRE colonisation and HAI on admission. Conclusion These data indicate that there is an epidemic spread of CRE in Vietnamese hospitals with rapid transmission to hospitalised patients. ; Funding agencies: Karolinska Institute, Solna, Sweden; Linkoping University, County of Ostergotland, Sweden; Swedish Foundation for International Cooperation in Research and Higher Education, STINT, Stockholm, Sweden; European Union, Marie Slodowska Curie Grants; ReAct, Up