POPULATION GENETIC DIVERSITY OF CAMELLIA DILINHENSIS ON THE DI LINH PLATEAU OF VIETNAM REVEALED BY ISSR AND SCOT MARKERS

Genetic diversity of naturally distributed Camellia dilinhensis populations on the Di Linh plateau of Vietnam was assessed by the inter-simple sequence repeat (ISSR) and start codon targeted (SCoT) techniques separately and then by combining data from both techniques for satisfactory results. The genetic diversity parameters and genetic distances among individuals found with the ISSR technique (HeI = 0.1420, II = 0.2092, PPBI = 35.22%, GSCsI = 0.765–0.988, and AGSCI = 0.915) are lower than those found with the SCoT technique (HeS = 0.2100, IS = 0.381, PPBS = 52.27%, GSCsS = 0.644–0.985, and AGSCS = 0.866). Based on the combined data from both techniques, the level of genetic diversity of the investigated population is PPB = 43.77%, He = 0.1720, I = 0.2582, and the genetic similarities among individuals are GSCs = 0.764–0.973 with an average of AGSC = 0.894. The SCoT technique differentiated between individuals better and reflected a higher level of genetic diversity in the population than the ISSR technique, but the ISSR technique revealed more loci in Camellia dilinhensis plants than did the SCoT technique

Measuring nurse educator confidence in clinical teaching competence

&nbsp;Nguyen\u27s PhD study focus on developing an instrument to measure nurse educator confidence in teaching in hospital settings. The instrument was subsequently used to evaluate evidence on the effectiveness of current preparation programs for nurse educators. The outcome of this study is applicable in other contexts and meaningful worldwide.<br /

Perspectiva de administradores e professores de ensino médio dos critérios de avaliação para pesquisa-ação na área da educação

Action research becomes an appropriate and effective professional development method and strategy to promote inquiry knowledge and solve the problem that leads to action or change. Teachers participating in action research could gain a better insight into themselves as teachers, be motivated to continuous professional growth, and boost their self-confidence as professionals. The main objective here is to examine high-school administrators' and teachers' perceptions of the necessity of evaluation criteria for pedagogical action research. This research surveyed 255 respondents, including 16 administrators and 239 teachers from high-schools in Binh Duong province, Vietnam, with the 11-item questionnaire. The main finding indicated that all high-school administrators and teachers participating fully agree that novelty, effectiveness, and applicability are necessary criteria to evaluate quality of pedagogical action research in Vietnam. Our study contributes to the general discussion about necessary and appropriate criteria for evaluating the quality of pedagogical action research in Vietnam.La investigación-acción se convierte en un método y estrategia de desarrollo profesional apropiado y efectivo para promover la indagación del conocimiento y la solución del problema que lleva a la acción o al cambio. Los docentes que participen en la investigación-acción podrían obtener una mejor percepción de sí mismos como docentes, estar motivados para un crecimiento profesional continuo y aumentar su confianza en sí mismos como profesionales. El principal objetivo aquí es examinar las percepciones de los administradores y profesores de secundaria sobre la necesidad de criterios de evaluación para la investigación acción pedagógica. Esta investigación encuestó a 255 encuestados, incluidos 16 administradores y 239 maestros de escuelas secundarias en la provincia de Binh Duong, Vietnam, con el cuestionario de 11 elementos. El hallazgo principal indicó que todos los administradores y docentes de escuelas secundarias que participaron están totalmente de acuerdo en que la novedad, la eficacia y la aplicabilidad son criterios necesarios para evaluar la calidad de la investigación acción pedagógica en Vietnam. Nuestro estudio contribuye a la discusión general sobre los criterios necesarios y apropiados para evaluar la calidad de la investigación acción pedagógica en Vietnam.A pesquisa-ação torna-se um método e estratégia de desenvolvimento profissional apropriado e eficaz para promover o conhecimento da investigação e resolver o problema que leva à ação ou mudança. Os professores que participam da pesquisa-ação podem obter uma melhor visão de si mesmos como professores, serem motivados para o crescimento profissional contínuo e aumentar sua autoconfiança como profissionais. O objetivo principal aqui é examinar as percepções de administradores e professores do ensino médio sobre a necessidade de critérios de avaliação para a pesquisa-ação pedagógica. Esta pesquisa contou com 255 entrevistados, incluindo 16 administradores e 239 professores de escolas de ensino médio na província de Binh Duong, no Vietnã, com um questionário de 11 itens. A principal descoberta indicou que todos os administradores e professores do ensino médio participantes concordam plenamente que novidade, eficácia e aplicabilidade são critérios necessários para avaliar a qualidade da pesquisa-ação pedagógica no Vietnã. Nosso estudo contribui para a discussão geral sobre critérios necessários e adequados para avaliar a qualidade da pesquisa-ação pedagógica no Vietnã

High school administrators' and teachers' perceptions of their educational action research skills

Educational action research has attracted significant attention from teacher-researchers and school administrators in recent years due to the method's effectiveness in teaching practices. Besides, educational action research skills are regarded as one of the essential aspects of doing action research. The present study aims to examine administrators' and teachers' perceptions of their educational action research skills; compare educational action research skills between the trained and the untrained groups and between the group that conducted the research and the group that did not. Quantitative research was used in this research. The study used the 11-item scale to survey 255 respondents (16 administrators and 239 teachers) from eleven high schools in Binh Duong province, Vietnam. The descriptive analysis was used to assess perceptions of high school administrators and teachers on their educational action research skills. Our results indicate that administrators and teachers assess their educational action research skills at very good. The trained group's educational action research skills are higher than the untrained group. Educational action research skills of the group conducted research are higher than the group that did not. The present findings provide more information on educational action research among administrators and teachers in Binh Duong province. Educational action research training programs, workshops, and educational policies should be implemented to reinforce and promote educational action research skills

Blended Learning for Secondary Schools in Nam Dinh Province to Satisfy New Standards: The Current Situation and Proposed Models

We offered blended learning models for high schools in Nam Dinh province to satisfy Vietnam's new criteria. These models were based on general approaches to issues, theoretical research, and field research based on surveys and anket questionnaires conducted throughout the area. The results of a survey demonstrate that high school teachers in Nam Dinh have gained a fundamental grasp of blended learning and have, in practice, embraced both online and face-to-face instruction, particularly during the height of the Covid-19 outbreak. However, there was not a standard model for blended learning, therefore it was only used by a few persons. In other contexts, the concept of "blended learning" referred to what was effectively a face-to-face session that was broadcast over the Internet without the necessary adjustments being made to the content, methodology, or evaluation. As a result, we offer a number of different ways to blended learning for high schools in Nam Dinh in order to improve the quality of education provided throughout the province

Fungal keratitis among inpatients with corneal ulcers in Thai Binh, Vietnam: A retrospective observational study

Background: Infectious keratitis can be caused by bacteria, fungi, and viruses. Fungi are a common pathogen, especially in developing countries like India, Nepal, and Bangladesh where the prevalence ranges from 20% to 60%. In Vietnam, fungal keratitis accounted for the highest number of keratitis cases in a study conducted at the central eye hospital over a 5-year period (57%). Therefore, it is necessary to collect specific background information connected to the types of fungal keratitis in corneal ulcer cases in this region. Aims and Objectives: The aim of this study was to investigate the prevalence of fungal keratitis and the epidemiological features in 216 cases of fungal keratitis out of a total of 240 cases of infectious keratitis. Materials and Methods: This retrospective study collected secondary data from medical records of 240 inpatients with infectious keratitis who were treated at the ophthalmology hospital in Thai Binh, Vietnam, from January 01st, 2021 to June 30th, 2022. Patients with a positive fungal-directed smear were analyzed in detail for the type of fungus isolated, sociodemographic data, predisposing risk factors, prior treatment modalities, and laboratory results for the distribution pattern of fungus species. Results: Among the 240 cases, 126 (52.5%) were diagnosed with fungal keratitis by direct microscopic examination. Culture results showed the highest rate of Fusarium spp. (43.3%). The age group of 41–60 years was most commonly involved (40.5%). Males were more affected by fungal keratitis than females, (53.2% compared to 46.8%), with farmers being the most common occupation correlated with fungal keratitis (55.6%). The rate of fungal keratitis patients due to agricultural injuries was the highest compared to other risks (47.6%) and most patients self-medicated before going to the hospital, with many not knowing or remembering what medications they had taken (52.4%). Conclusion: The study revealed a high rate of fungal keratitis among the total of infectious keratitis cases in Thai Binh, Vietnam. Fusarium spp. was the most commonly isolated fungi. The study also highlighted the impact of agricultural injuries on fungal keratitis, especially in regions like Thai Binh

A METHOD TO IMPROVE THE TIME OF COMPUTING BETWEENNESS CENTRALITY IN SOCIAL NETWORK GRAPH

The Betweenness centrality is an important metric in the graph theory and can be applied in the analyzing social network. The main researches about Betweenness centrality often focus on reducing the complexity. Nowadays, the number of users in the social networks is huge. Thus, improving the computing time of Betweenness centrality to apply in the social network is neccessary. In this paper, we propose the algorithm of computing Betweenness centrality by reduce the similar nodes in the graph in order to reducing computing time. Our experiments with graph networks result shows that the computing time of the proposed algorithm is less than Brandes algorithm. The proposed algorithm is compared with the Brandes algorithm [3] in term of execution time

Musculoskeletal Pain and Work-related Risk Factors among Waste Collectors in Hanoi, Vietnam: A Cross-sectional Study

BACKGROUND: Musculoskeletal disorders (MSDs) are prevalent among waste collectors (WCs) in developing countries. AIM: This study aimed to investigate the prevalence of MSDs and the factors associated with the risk of persistent musculoskeletal pain among WCs in Hanoi, Vietnam. METHODS: A cross-sectional survey was utilized to study 468 WCs in 2017. The Örebro Musculoskeletal Pain Questionnaire and a questionnaire on demographic and work conditions were used to collect data. Descriptive and multivariate logistics regression analyzes were applied at a significance level of 0.05 to examine the factors related to the risk of persistent pain. FINDINGS: About 74.4% of the participants of this study experienced MSDs in at least one body region and 9.4% reported MSDs in all 10 body sites. The lower back was reported to be the most affected followed by the neck and shoulders. The risk of persistent musculoskeletal pain was significantly associated with age (odds ratio (OR) = 2.31, confidence interval (CI) = 1.05–5.09), gender (OR = 3.29, CI = 1.28–8.44), work hours (OR = 2.35, CI = 1.12–4.92), work shift (OR = 0.48, CI = 0.26–0.92), duration of poor postures of the neck (OR = 0.31, CI = 0.13–0.76), bent back (OR = 0.4 CI = 0.18–0.92) and for medial rotation (OR = 3.01, CI = 1.42–6.36), carrying heavy objects (OR = 2.94, CI = 1.15–7.48), and experience of work dissatisfaction (OR = 3.31, CI = 1.46-7.52), stress (OR = 7.14, CI = 3.14–16.24), or anxiety (OR = 6.37, CI = 3.07–13.21). CONCLUSIONS: High prevalence of MSDs among WCs and its association with self-assessed unfavorable work postures and work-related stress implies the need of mechanical and social support at work for WC to prevent the development of MSDs and persistent pain

Biocontrol of Alternaria alternata YZU, a causal of stem end rot disease on pitaya, with soil phosphate solubilizing bacteria

Stem end rot is the most destructive disease caused by Alternaria alternata YZU in pitaya-growing regions of Vietnam. This study was conducted to characterize antagonistic phosphate-solubilizing bacteria (PSB) from rhizosphere soil for their biocontrol activities against A. alternata YZU and evaluate the effect of temperature, pH, and water activity on that antagonism. Among seven PSB isolated from 45 rhizosphere soil samples, PSB31 (identified as Bacillus sp. strain IMAU61039, Accession number: MF803700.1) exhibited the highest antagonistic activity against A. alternata YZU with an average inhibition diameter of 0.65 ± 0.05 cm. The results also show that the strain PSB31 controlled the mycelial growth of A. alternata YZU by secreting antifungal metabolites. The most potent inhibitory activity was identified under in vitro conditions of 25 °C, pH 7, and aw 1. The isolated PSB31 could be a potential biological control agent against A. alternata YZU

EMPLOYEE COMMITMENT TO ORGANIZATIONAL CHANGE WITH THE ROLE OF JOB SATISFACTION AND TRANSFORMATIONAL LEADERSHIP

This study aimed to analyze the role of job satisfaction and transformation leadership for employees’ commitment to organizational change. Based on a survey sample of 381 employees in post-merger enterprises in retail and pharmaceutical sector and a linear regression model. The results revealed that Transformational leadership was associated positively and significantly with Affective Commitment (β = .42, p \u3c .000), Normative Commitment (β = .32, p \u3c .000), and Continuance Commitment (β = .27, p \u3c .000); Job satisfaction was associated positively and significantly with Affective Commitment (β = .24, p \u3c .000) and Normative Commitment (β = .30, p \u3c .000) among employees’ to organizational change. The results of this study provide a foundation of theory and practice for organizational changes that can efficiently exploit the human resource for the development in the next period