bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH JOB SATISFACTION TERHADAP ORGANIZATIONAL CITIZENSHIP BEHAVIOR, EMPLOYEE PERFORMANCE DENGAN ORGANIZATIONAL COMMITMENT SEBAGAI VARIABEL INTERVENING
Authors: Handaningrum Citra Puspandari , Tanuwijaya Justine
Published: September 2023

Penelitian ini bertujuan untuk mengetahui pengaruh job satisfaction (JS) terhadap organizational citizenship behavior (OCB)  dan employee performance (EP)  dengan organizational commitment (OC)  sebagai variabel intervening. Penelitian ini menggunakan 270 responden dari Rumah Sakit Krakatau Medika IHC Cilegon Banten dan Rumah Sakit Umum Daerah Dr Drajat Prawiranegara Serang Banten. Tahapan penelitian yang dilakukan meliputi penentuan objek, sampel, perancangan dan evaluasi kuesioner, penyebaran dan pengumpulan kuesioner, penentuan model dan hipotesis, pengolahan data menggunakan PLS-SEM, dan pembahasan hasil hipotesis. Hasil dari penelitian ini menemukan bahwa terdapat hubungan positif antar variabel. Job satisfaction, berpengaruh positif terhadap organizational commitment, organizational citizenship behavior, dan employee performance. Organizational commitment, berpengaruh positif terhadap organizational citizenship behavior, dan employee performance. Job satisfaction, berpengaruh positif terhadap organizational citizenship behavior melalui organizational commitment. Job satisfaction, juga berpengaruh positif terhadap employee performance melalui organizational commitment.
إسهامات الدور الأسري في التعليم عن بعد
Authors: الطنيجي رقية , أبو الخير أميمة
Published: September 2023

شهد العالم حدثاً كبيراً هدد التعليم بأكبر أزمة عرفها التاريخ الحديث والتي تعد الأكثر خطورة، تمثلت بجائحة فيروس كورونا (COVID-19) والتي تسببت في تعطيل أكثر من 1.6 مليار طالب وطالبة من التعليم في 161 دولة، أي ما يقرب من 80٪ من الطلاب المسجلين في المدارس على مستوى العالم، وقد جاء ذلك في وقت تعاني فيه بعض بلدان العالم من تدهور النظام التعليمي. وتسعى هذه الدراسة إلى التعرف على واقع دور الأسرة (الأب- الأم) في تعليم الأبناء عن بعد، في إمارة أبو ظبي أثناء جائحة كورونا. ودور الأسرة في تعليم الأبناء عن بعد أثناء جائحة كورونا وفقا لبعض المتغيرات مثل (الجنس، التحصيل الدراسي، الدخل)، وتم إتباع المنهج الوصفي (النوعي والكمي)، وقد استخدمت أداة الاستبيان لجمع البيانات، واعتمدت الدراسة على نظرية البنائية الوظيفية كإطار نظري لها. وبلغ حجم عينة الدراسة (50) أب وأم ومن أهم النتائج التي توصلت إليها الدراسة، أن هناك دوراً كبيراً للأسرة في مساعدة ومراقبة الأبناء أثناء جائحة كورونا والذي  يمكن اعتباره الدور الرئيسي في الأنظمة التعليمية حيث كأن يقع على الأسرة مسئولية متابعة تقدم مستوى الطالب, والإشراف على تحصيله الدراسي, والأنشطة التي يقوم بها، وهذه النتائج  تتفق مع العديد من الدراسات السابقة، كما كشفت نتائج الدراسة الحالية، وجود فروق ذات دلالة إحصائية لصالح الأمهات في مساعدة الأبناء أي أن الأمهات يساعدن الأبناء أكثر من الآباء، وفروق ذات دلالة إحصائية لصالح (الدخل الأقل) أي أن الأسر ذات الدخل الأعلى تساعد أبناءها أكثر. وأوصت الدراسة بضرورة عمل دورات أونلاين لتعرف الأسرة كل ما يتعلق بالوسائل الحديثة في التعليم، وذلك للتمكن من التعامل مع الأجهزة التكنولوجية وحل مشاكل التقنية وغيرها من المعوقات التي تواجه الأبناء والأسرة في عملية التعليم عن بعد، لإطلاعهم وتدريبهم على أهم التطبيقات التي تستخدم من قبل أنظمة التعليم المختلفة بالمدارس.
التحليل الرقمي للخصائص المورفومترية لبعض احواض وديان بادية السماوة
Authors: مالح عبدالحسن , عبود عبد الله
Published: September 2023

يعد حوض وادي ابو غار والاحواض المرتبطة به من الاحواض النهرية التي تتسم بجفافها في اغلب ايام السنة، كنتيجة لوقوعها ضمن المنطقة الصحراوية في الجزء الجنوبي الغربي من العراق والتي تكون جافة في معظم ايام السنة، اذ تجري فيها المياه في موسم التساقط المطري فقط على اثر سقوط الامطار اولا، وعلى اثر حدوث السيول التي تنتج بسبب وصول كميات كبيرة من المياه من المناطق الاكثر ارتفاعا وانحدارا، وعلية فأن الخصائص المورفومترية سواء كانت الخصائص المساحية والشكلية والتضاريسية والتصريفية لها الدور الكبير في بيان طبيعة الخصائص الطبيعية من ارتفاع وانحدار ووعورة والى غيرة، والذي بدورة يؤدي الى حدوث جريان مائي يساهم في تشكيل عمود طباقي ترسيبي، كما ان الخصائص المورفومترية تتباين في تأثيرها على الناتج الرسوبي المكون للعمود الطباقي للأحواض النهرية، ويتم ذلك بأستعمال التقانات الجغرافية الحديثة، فضلا عن الاستفادة من الخرائط الطوبوغرافية والمرئيات الفضائية. وتم استعمال أكثر من منهج علمي، وتم استعمال المنهج الرياضي من خلال استخدام المعادلات الرياضية في معرفة القيم الشكلية والتضاريسية والتصريفية، فضلا عن استعمال المنهج الوصفي وكذلك المنهج التحليلي لتحليل البيانات المساحية والتضاريسية والتي تم استخراجها من تطبيق المعادلات الرياضية.
Obtaining yeast mannoproteins with antimicrobial properties
Authors: Kuntsova Mariia , Meledina Tatiana , Davydenko Svetlana , Manshin Dmitrii , Andreeva Anastasia
Published: September 2023

Introduction: Mannoproteins (MP) contained in the yeast cell wall (YCW) have high biological activity and possess several techno-functional properties. They are actively used in oenology, as a colloidal stabilizer and an inhibitor of the crystallization of potassium bitartrate, agriculture, as a feed additive for animals, the food industry, as an emulsifier. We obtained MP from Saccharomyces cerevisiae yeast and evaluated antimicrobial properties against Bacillus subtilis and Escherichia coli.Methods: YCW was obtained by autolysis of 15% yeast suspension of S. cerevisiae for 24 h at the temperature of 55° C with the initial pH of 5.0 and mixing at 120 rpm. MP preparations from YCW were obtained in two ways, namely, thermal extraction at the temperature of 121° C and alkaline extraction. The precipitated protein was dried in a dehydrator and then crushed. After that, MP were tested in relation to two cultures of E. coli and B. subtilis by sowing on liquid and solid nutrient media, with the addition of MP preparation obtained by various methods and different concentrations.Results: As a result of induced autolysis, YCW was obtained with a yield of 27%. The MP yield after thermal and alkaline extraction was 12.0 and 12.9%, respectively. In relation to E. coli, alkaline MP showed the inhibitory ability of 37% at the preparation concentration of 5% (m/v). The fraction obtained by thermal means demonstrated minimal antimicrobial activity (AA). Inhibition was 4% relative to the control sample at the preparation concentration of 3% (m/v). According to the experimental data obtained with respect to B. subtilis, AA of the alkaline (3% m/v) fraction was 80%. The thermal (5% m/v) fraction did not manifest AA, on the contrary, it acted as a catalyst for colony growth.Conclusions: Mannoprotein obtained by alkaline extraction showed an inhibitory effect on the growth of B. subtilis and E. coli. The resulting preparation can be used as a feed additive to agriculture animals as an alternative to antibiotics. With proper cleaning, this preparation can be used in medicine and cosmetology.  Keywords: mannoprotein, cell wall, yeast, Saccharomyces cerevisiae, antimicrobial properties
Boosting active domain adaptation with exploration of samples
Authors: Tian Qing , Zhang Heng
Published: September 2023

Nowadays, the idea of active learning is gradually adopted to assist domain adaptation. However, due to the existence of domain shift, the traditional active learning methods originating from semi-supervised scenarios can not be directly applied to domain adaptation. To solve the problem, active domain adaptation is proposed as a new domain adaptation paradigm, which aims to improve the performance of the model by annotating a small amount of target domain samples. In this regard, we propose an active domain adaptation method named Boosting Active Domain Adaptation with Exploration of Samples (BADA), dividing Active DA into two related issues: sample selection and sample utilization. We design the instability selection criterion based on predictive consistency and the diversity selection criterion. For the remaining unlabeled samples, we design a self-training framework, which screens out reliable samples and unreliable samples through the sample screening mechanism similar to selection criteria. And we adopt respective loss functions for reliable samples and unreliable samples. Experiments show that BADA remarkably outperforms previous active learning methods and Active DA methods on several domain adaptation datasets.
Pure large kernel convolutional neural network transformer for medical image registration
Authors: Fang Zhao , Cao Wenming
Published: September 2023

Deformable medical image registration is a fundamental and critical task in medical image analysis. Recently, deep learning-based methods have rapidly developed and have shown impressive results in deformable image registration. However, existing approaches still suffer from limitations in registration accuracy or generalization performance. To address these challenges, in this paper, we propose a pure convolutional neural network module (CVTF) to implement hierarchical transformers and enhance the registration performance of medical images. CVTF has a larger convolutional kernel, providing a larger global effective receptive field, which can improve the network’s ability to capture long-range dependencies. In addition, we introduce the spatial interaction attention (SIA) module to compute the interrelationship between the target feature pixel points and all other points in the feature map. This helps to improve the semantic understanding of the model by emphasizing important features and suppressing irrelevant ones. Based on the proposed CVTF and SIA, we construct a novel registration framework named PCTNet. We applied PCTNet to generate displacement fields and register medical images, and we conducted extensive experiments and validation on two public datasets, OASIS and LPBA40. The experimental results demonstrate the effectiveness and generality of our method, showing significant improvements in registration accuracy and generalization performance compared to existing methods. Our code has been available at https://github.com/fz852/PCTNet.
Con2Mix: A semi-supervised method for imbalanced tabular security data1
Authors: Li Xiaodi , Khan Latifur , Zamani Mahmoud , Wickramasuriya Shamila , Hamlen Kevin , Thuraisingham Bhavani
Published: September 2023

Con2Mix (Contrastive Double Mixup) is a new semi-supervised learning methodology that innovates a triplet mixup data augmentation approach for finding code vulnerabilities in imbalanced, tabular security data sets. Tabular data sets in cybersecurity domains are widely known to pose challenges for machine learning because of their heavily imbalanced data (e.g., a small number of labeled attack samples buried in a sea of mostly benign, unlabeled data). Semi-supervised learning leverages a small subset of labeled data and a large subset of unlabeled data to train a learning model. While semi-supervised methods have been well studied in image and language domains, in security domains they remain underutilized, especially on tabular security data sets which pose especially difficult contextual information loss and balance challenges for machine learning. Experiments applying Con2Mix to collected security data sets show promise for addressing these challenges, achieving state-of-the-art performance on two evaluated data sets compared with other methods.
A fuzzy group decision-making framework for computer network security evaluation with probabilistic linguistic information
Authors: Shen Genhai , Li Xiaoyu
Published: September 2023

The computer network security evaluation is a classical multiple attribute group decision making (MAGDM) problems. Recently, the Exponential TODIM TODIM (ExpTODIM) method has been used to cope with MAGDM issues. The probabilistic linguistic term sets (PLTSs) are used as a tool for characterizing uncertain information during the computer network security evaluation. In this manuscript, the probabilistic linguistic ExpTODIM (PL-ExpTODIM) is built to solve the MAGDM under PLTSs. In the end, a numerical case study for computer network security evaluation is given to validate the proposed method. The main contribution of this paper is constructed: (1) the Exponential TODIM TODIM (ExpTODIM) method is extended to the PLTSs; (2) the probabilistic linguistic ExpTODIM (PL-ExpTODIM) method is defined to solve the MAGDM under PLTSs; (3) In the end, a numerical case study for computer network security evaluation is given to validate the proposed method.
Assessing the association between probable posttraumatic stress disorder symptoms and quality of life among emergency service workers using path analysis
Authors: Noda Yoshikazu , Asano Kenichi , Shimizu Eiji , Hirano Yoshiyuki
Published: September 2023

BACKGROUND: Emergency service workers have highly stressful occupations; the stressors encountered can contribute to the development of mental disorders such as depression, anxiety, and posttraumatic stress disorder (PTSD). OBJECTIVE: The present study used a conceptual model and survey to identify variables influencing the association between probable PTSD and quality of life (QOL) in emergency service workers. METHOD: PTSD was assessed using the Impact of Event Scale-Revised. QOL was assessed using the Medical Outcomes Study 36-Item Short-Form Health Survey. Path analysis was used to determine whether stress-coping (Brief Coping Orientation to Problems Experienced [Brief COPE] scores), social support (Multidimensional Scale of Perceived Social Support [MSPSS] scores), and resilience (Connor–Davidson Resilience Scale scores) explain the association between probable PTSD and QOL among 220 emergency service workers in Japan. RESULTS: Impact of Event Scale-Revised scores were significantly positively associated with Brief COPE Active coping scores and significantly negatively associated with MSPSS scores. Brief COPE Active coping and MSPSS scores were significantly positively associated with Connor–Davidson Resilience Scale scores, which were in turn significantly positively associated with Medical Outcomes Study 36-Item Short-Form Health Survey scores. CONCLUSION: Active coping in response to stressful situations is important for maintaining good mental health among emergency service workers. Active coping and social support may strengthen resilience, and resilience may improve QOL. Screening for mental health and QOL should include simultaneous assessment of stress-coping, social support, and resilience. Although the findings of this cross-sectional study are important, it could not confirm a causal relationship between PTSD and QOL.
Effect of noise and hand-transmitted vibration exposure on hearing and equilibrium under a simulated work environment with building tools
Authors: Kordmiri Seyed Hojat Mousavi , Aliabadi Mohsen , Golmohammadi Rostam , Bovenzi Massimo , Farhadian Maryam
Published: September 2023

BACKGROUND: Construction workers are exposed to hand-transmitted vibration (HTV) and/or noise caused by vibrating hand tools in the work environment. OBJECTIVE: The present study aims to investigate the effects of exposure to HTV and/or noise on workers’ hearing loss and body balance. METHODS: Forty construction workers were exposed to HTV (10 m/s2 rms, 31.5 Hz) and/or typical construction noise (90 dBA) in three simulated experiment scenarios with the vibrating hand-held tool for 30 minutes over three days. The hearing loss from 1000 to 6000 Hz and the body balance were determined before and after each exposure scenario. RESULTS: Separate noise exposure at all frequencies except for 1000 Hz could significantly affect hearing threshold levels (p-value<0.05). Separate exposure to HTV cannot lead to a remarkable effect on hearing loss (p-value>0.05); however, it can synergistically increase the effect of noise on hearing loss. Also, the affected frequency range in concurrent exposure has been greater than in separate noise exposure. The separate effects of exposure to HTV and noise on the subjects’ body balance were not statistically significant (p-value>0.05); however, these effects became significant in concurrent exposure (p-value<0.05). Based on the estimated effect sizes, noise could synergistically increase the observed effect of HTV on body balance. CONCLUSION: There is a synergistic interaction between HTV and noise on hearing loss and body balance. It seems necessary to pay attention to the risk evaluation of simultaneous exposure to noise and HTV when setting the occupational action limit values.
Synthesis, Properties, and Applications of Carbon Nanotubes: An Overview
Authors: Hussain Shabbir , Akbar Uzma , Ahmad Muhammad , Ibrar Muhammad , Ali Zulfiqar , Waqas Muhammad , Ahmad Sheikh Asrar , Abbas Syed Mustansar , Ullah Habib , Anwar Sehrish
Published: September 2023

The current study attempts to review the literature concerning the synthesis, properties, and application of carbon nanotubes (CNTs). The methods used to produce carbon nanotubes include laser ablation, electric arc discharge, chemical vapor deposition, plasma-enhanced chemical vapor deposition, pulsed laser deposition, use of low-frequency ultrasound waves, heating a bulk polymer, and bulk sputtering. CNTs have excellent mechanical and thermal properties that strongly depend upon their structure. Functionalized magnetic CNTs are involved in magnetic force microscopy used in biomedicine. The liquid and plastic limit of kaolinite can be increased by adding CNTs to it. In the medical field, CNTs have numerous applications including gene delivery to cells, cancer therapy, drug delivery, and tissue regeneration. Their antioxidant nature also enables them to be used in cosmetic products and in the field of dermatology. They are also used to purify the environment, water, and in modern food-packaging technology. The sensors containing CNTs composite pellets are sensitive to gases, such as NH3, CO2, and CO H2O. CNTs are used to construct gas containers for hydrogen storage. They are also considered ideal for structural applications and their properties can be improved by making their composites with metals. Such metals may be introduced into the core of CNTs by different methods including solid-state reaction, arc-discharge method, and electrochemical techniques. The value of absorbed hydrogen gas in CNTs varies between 0.4 and 67 mass %. Recent advances encourage more research on CNTs to increase their clinical applications in the future.
Contemporary Dance in Choreographic Art of Ukraine
Authors: Lukyanenko Kateryna
Published: September 2023

The purpose of the research is to identify the place of contemporary choreography in the art of choreography on the stages of Ukrainian ballet theatres. Research methodology. Methods of analysis, problematic and chronological, art history, and theoretical generalisation are applied. Scientific novelty. A retrospective analysis of choreographic activity in the field of contemporary choreography in Ukraine over the past thirty years has been conducted. Conclusions. Contemporary dance on the Ukrainian ballet stage, both in the repertoire of opera and ballet theatres and in the activities of individual ballet companies that are not associated with stationary premises, should be considered in the context of global trends in the development of modern and postmodern choreography, the basic principles of which were formed outside Ukraine. These trends were born and developed in the European and American dance space, came to the national dance soil as a result of artistic expansion, took root and acquired specific features. Contemporary dance occupies an insignificant place in the choreographic work of Ukrainian choreographers. Ballet performances created in the aesthetics of contemporary dance styles make up only a small part of the repertoire of academic ballet theatres. It is worth increasing the number of such performances staged by domestic and foreign choreographers, which will help expand the performing range of companies, integrate Ukrainian ballet theatre into the global cultural space, and increase the competitiveness of ballet theatres within the country (compared to, for example, drama theatres, which are much more responsive to the aesthetic demands of the public) and on the international stage. The modern direction of ballet theatre is actively developed in the activities of the only professional contemporary dance company in Ukraine, whose popularity is constantly growing, the Kyiv Modern Ballet, facilitated by the chief choreographer R. Poklitaru and his students and followers.

Key words: contemporary dance, choreographic art, Ukrainian choreography, ballet theatre, dance.
Compensatory Aestheticism of Performance of Expressionist Compositions for Piano by A. Schoenberg and A. Berg
Authors: Androsova Daria
Published: September 2023

The purpose of this paper is to analyse piano compositions by A. Schoenberg (Six pieces, Op. 19) and A. Berg (Sonata, Op. 1) in the context of a performance reading based on the symbolist aestheticism of expressing the reviving string-plucking analogy of the keyboard-piano expression. The methodological basis is the intonation approach of B. Asafiev’s school in the works of Ukrainian musicologists, including T. Verkina, O. Kozarenko, I. Lyashenko, O. Markova, O. Sokol and others, using research methods of comparative-stylistic, hermeneutical, biographical-descriptive, and analytical-typological. The scientific novelty lies in the originality of the observation of the compensatory aestheticism of the performance perspective of the above music by A. Schoenberg and A. Berg and the correspondence of the latter to the neo-symbolist tendencies of contemporary creative thinking. Another independent conclusion is the nature of this performing choice, which meets the audience's expectations and is correlated with the game-mosaic worldview of our time to exclude dramatic and tragic angles of the content of the musical classics. Conclusions. The neo-symbolist eclecticism of the post-avant-garde revived the keyboard string-plucking analogy in piano sound production, giving pianistic expression a salon-like spiritualised "lightness" that reoriented the expressionist-salon tendencies of the piano heritage of the Novovidenians to a compensatory aestheticism of pro-symbolist meaning. The reality of performing compositions by A. Schoenberg and A. Berg is that the music of their works, including those performed by the author of this essay, approaches the character of salon cordiality of sound, which rejects expressionist anti-aestheticism in favour of pro-Schubertian greetings of the post-post-avant-garde.

Key words: aestheticism, compensatory musical expression, symbolism, expressionism, style in music, performance style, musical genre.
SYNTHESIS OF MUSIC AND DANCE ON THE EXAMPLE OF PERFORMANCE
Authors: Lee Zhi
Published: September 2023

The purpose of the paper is to consider modern performances that demonstrate the synthesis of music and dance. Research methodology. To achieve the goal, a set of methods was used: general scientific – analysis, synthesis, generalization, which were used to clarify the state of elaboration of the problem of music and dance synthesis in performances; concrete-scientific – comparative and structural analysis used to distinguish the main dance companies and features of performances; historical-genetic and retrospective, which were used to clarify certain historical aspects of the research problem; a biographical method that made it possible to consider the figure of famous performance art creators. Scientific novelty. For the first time in the domestic research area, modern performances that demonstrate the synthesis of music and dance were considered. Conclusions. The publication proves that the synthesis of music and dance is a powerful form of artistic expression that allows creating a unique and exciting experience for the audience. A dynamic, interactive event that integrally combines music and dance is a performance. It is found that the innovative performances that combine music and dance belong to the American choreographer Twyla Tharp. Collaborating with a wide range of musicians, artists, Tharp creates works (“Preludes and Fugues”, “Times Change”) that synthesize music and dance to create movement that is directly inspired by the rhythms and melodies of music. The Alvin Ailey American Dance Theater with the performance “Grace” became a powerful innovative practice that combines the emotional depth of musical accompaniment and technical dance skill.

Key words: synthesis, music, dance, performance, synthesis of music and dance.
Meiningen Theatre of the Second Half of the Nineteenth Century: Creativity of Ludwig Kroneck's Directing Mechanisms
Authors: Nechayenko Tetyana
Published: September 2023

The purpose of the work is to describe and highlight the artistic and creative activities of the Meiningen Theatre and the professional skill and creativity of Ludwig Kroneck's directing mechanisms. The research methodology is to apply the art historical method for a comprehensive study and understanding of all components of the nature of stage creativity and directorial activity of the Meiningen theatre of the corresponding period, its artistic and aesthetic value. The structural method and a systematic approach in combination with the historical method are used for a thorough study of the creative experience of the Meiningen theatre and its directing, analysis of the characteristic differences in artistic activity. The functional method helped to analyse the essentially practical component of the imaginative and creative process, pragmatic characteristics of the theatre ensemble and director's explications of the German Meiningen Theatre of the second half of the nineteenth century. The analytical method was applied for considering the essence of the techniques and means of practical implementation of an artistic work, its transformation into a stage reality with the help of special professional methods and means of ideological and emotional expression. The scientific novelty of the study lies in a comprehensive analysis of Ludwig Kroneck's creative skills, the creativity of his theatre directing mechanisms and the significance of the master's professional experience for the stage professional process of contemporary theatre. Conclusions. The PR experience of L. Kronek, director and manager of the Meiningen Theatre in the second half of the nineteenth century, impresses today with its expediency in the theatrical process of stage creativity, namely: the master’s innovations in solving mass scenes of productions, performing role material by each performer with the help of all means and skills of high artistry The integrity of all methods of building a synthetic artistic and figurative stage canvas was achieved by the artist due to the complex skills of the director's ideas – light, scenery, mise-en-scene and performance of the acting ensemble. Modern theatre directing, as always, is in a constant process of inventing the latest original solutions for creating a stage form, figurative, and associative disclosure of a dramatic work as an artistic form of theatre. In their aspirations, the artists of the Melpomene stage should not forget the fruitful experience of their predecessors, who stood at the origins of the profession of directing as the main creator of visual and entertainment performance.

Key words: directing activity, Ludwig Kroneck, Meiningen Theatre, director, actor, theatre.
alidity and reliability of child oral health impact profile among Vietnamese children from 12 to 15 years old
Authors:   Hospital of Odonto-Stomatology in Ho Chi Minh City, Vietnam, Hoang Tan La , Hoang Hung Trong ,   Department of Dental Public Health, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, Vietnam, Vu Hoa Anh Dien ,   Department of Dental Public Health, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, Vietnam, Ngo Chau Uyen ,   Department of Dental Public Health, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, Vietnam
Published: September 2023

Background: Child Oral Health Impact Profile (COHIP) is a tool to evaluate the impact of oral health related to quality of life. However, there is no Vietnamese standardized COHIP version in Vietnam. This study assessed the validity and reliability of the Vietnamese version of COHIP questionnaire (COHIP-VIET) among Vietnamese children from 12 to 15 years old. Methods: A cross-sectional descriptive study was performed in 853 children from 12 to 15 years old in Ho Chi Minh city from 5/2020 to 4/2021. The original English version of COHIP was translated into Vietnamese (COHIP-VIET) and then backward-translated into English by two dental specialists with certified English level. The COHIP-VIET was reviewed by a specialist committee and was pilot-studied in 30 children from 12-15 years old before performing a main study. The COHIP-VIET was retested with 25% of the sample after two weeks. The Intraclass Correlation Coefficients (ICC) and Cronbach’s alpha coefficients were utilized in this study. Results: The COHIP-VIET was constructed in this study. COHIP score of 12-15 year-old children ranged from 46 to 153. The COHIP-VIET had high reliability with ICC= 0.884 (95% CI= 0.843 – 0.914) and Cronbach’s alpha= 0.88. Conclusions: The COHIP-VIET has high validity and reliability. This questionaire can be used in self-evaluation oral health related quality of life among Vietnamese children from 12 to 15 years old.
Impact of SARS-CoV-2 on female fertility and pregnancy
Authors:   Research Center for Genetics and Reproductive Health (CGRH), Medical Faculty, Vietnam National University Ho Chi Minh City, Vietnam, Trần Dũng Huy , Ngô Thuỳ Ngọc Phương ,   Research Center for Genetics and Reproductive Health (CGRH), Medical Faculty, Vietnam National University Ho Chi Minh City, Vietnam
Published: September 2023

SARS-CoV-2 is a causative agent of an enormous pandemic, initiated from Wuhan, China in 2019 and then spread around the world. This virus infects not only the human respiratory tract but also other organs such as the heart, kidneys, testis, etc. by interacting with ACE2 and TMPRSS2 proteins. Until now, evidence of SARS-CoV-2 infectability in women’s reproductive tract, zygotes, embryos, and risk of vertical transmission is limited. Furthermore, some results from several studies are still incompatible. Cells of women’s reproductive system may have less susceptibility to SARS-CoV-2. However, human oocytes and embryos may be more vulnerable to SARS-CoV-2 because of the difference in co-expression of two transmembrane proteins - ACE2 and TMPRSS2, in those cells. SARS-CoV-2 increases the risk of negative impacts on different levels in different stages of pregnancy, as well as has a potential risk of vertical transmission. The recent evidence suggests that we need to pay more attention to taking care of SARS-CoV-2 infected pregnant women, especially in the first trimester of pregnancy.
Application of the Beck Depression Inventory – II, Zung Self-Rating Anxiety Scale và Pittsburgh Sleep Quality Index on student of School of Medicine – Vietnam National University Ho Chi Minh City: a pilot study
Authors:   School of Medicine – Vietnam National University HCMC, Ho Chi Minh City, Vietnam, Nguyễn Ân Huỳnh Bảo , Nguyen Ngoc Thi Tieu ,   School of Medicine – Vietnam National University HCMC, Ho Chi Minh City, Vietnam, Bui Minh Cong ,   School of Medicine – Vietnam National University HCMC, Ho Chi Minh City, Vietnam, Le My Viet , Vo Nghia Quang ,   School of Medicine – Vietnam National University HCMC, Ho Chi Minh City, Vietnam, Hoang Ngoc Thi Nhu ,   School of Medicine – Vietnam National University HCMC, Ho Chi Minh City, Vietnam, Nha Thanh Chung ,   School of Medicine – Vietnam National University HCMC, Ho Chi Minh City, Vietnam, Nguyen Dung Hoang ,   School of Medicine – Vietnam National University HCMC, Ho Chi Minh City, Vietnam
Published: September 2023

Objective: The study aims to applicate of the Beck Depression Inventory - II (BDI-II), Zung Self-Rating Anxiety Scale (SAS) and Pittsburgh Sleep Quality Index (PSQI) on medical students. Methods: A cross-sectional study was carried out on 61 students of the School of Medicine - Vietnam National University, Ho Chi Minh City from 17th to 20th June, 2021. The survey by self-completed questionnaires through Google Form. The survey questionnaire is made up 2 parts: Part 1 includes 4 questions to collect background information of research participants such as age, gender, school year, major of study; Part 2 includes 60 questions to assess 3 mental health problems: depression (including 21 questions), anxiety disorders (including 20 questions) and sleep disorders (including 19 questions and divided 7 sections). Results: Our study surveyed 61 students of the School of Medicine - Vietnam National University, Ho Chi Minh City, aged from 19 to 25 years old (the average age of the participants recorded was 22.03 + 1.63). About ⅔ of the participants are female, the participants are relatively evenly distributed in all 3 majors currently training at the Faculty of Medicine in Ho Chi Minh City, including Medicine, Pharmacy and Odonto-Stomatology. The results of our study were noted: the BDI-II records the internal reliability coefficient of Cronbach's alpha is 0.86; The SAS records the internal reliability coefficient of Cronbach's alpha is 0.88 and the PSQI records the internal reliability coefficient of Cronbach's alpha is 0.63. Conclusions: The BDI-II, SAS and PSQI show good reliability and consistency. Recommended for practical use in surveying depression, anxiety disorders and sleep disorders among medical students in Vietnam.
Symptomatic colonic lipoma: Report of two cases in Binh Dan Hospital
Authors:   Department of Gastrointestinal Surgery, Binh Dan Hospital, Ho Chi Minh City, Vietnam, Pham Phu Vinh ,   Department of General Surgery, Pham Ngoc Thach Medical University, Vietnam, Nguyen Huu Phu ,   Department of Gastrointestinal Surgery, Binh Dan Hospital, Ho Chi Minh City, Vietnam, Vu An Khuong ,   Department of Gastrointestinal Surgery, Binh Dan Hospital, Ho Chi Minh City, Vietnam, Tran Hung Vinh ,   Department of Gastrointestinal Surgery, Binh Dan Hospital, Ho Chi Minh City, Vietnam; Department of General Surgery, Pham Ngoc Thach Medical University, Vietnam
Published: September 2023

Colonic lipomas are benign tumors resulting from the proliferation of mature fat cells. Gastrointestinal lipomas are rare, often asymptomatic, and most are detected through diagnostic imaging devices such as colonoscopy and abdominal-pelvic computed tomography. Lipomas of the colon were first reported by Bauer in 1757 and are most often located in the ascending colon near cecum. Approximately 90% of colonic lipomas are located in the submucosa. The remainder of these tumors is intramucosal in origin. The reported incidence of colonic lipoma ranges from 0,2% to 4,4%. These fatty tumors are rarely greater than 2 cm in size and are rarely symptomatic. Lipomas that grow more than 4 cm in size can lead to obstruction and intussusception requiring surgical or endoscopic resection. Colonic lipomas may be challenging to diagnose as they may be asymptomatic for a long time or misdiagnosed as other's conditions. Atypical etiologies of intestinal obstruction should be considered in patients with persistent intermittent abdominal discomfort. Even though benign, some abdominal tumor conditions may be presented as cases of emergency care. Symptomatic colonic lipomas can be managed by endoscopy or surgery. Polypectomy through endoscopy is the treatment choice for lipomas considered of low complication risk. These are lipomas with less than 2 cm diameter or pedunculated lipomas with a thin tail. When greater than 2 cm, surgery represents the standard therapeutic option for lipomas. In this report, we present two cases of symptomatic colonic lipomas: one case of splenic flexure lipoma and one case of lipoma in the sigmoid colon. Both cases have been noted with intestinal obstruction. Those two patients performed laparoscopic colectomy. The operation and post-operative recovery were satisfactory. Both of the patients were discharged after taking seven days of post-operative care. Through this article, we would like to introduce the incidence, clinical features, diagnostic facilities, and surgical treatment of this benign tumor.
Podocytes – potential biomarker for early diagnosis of pre-eclampsia
Authors:   Research Center for Genetics and Reproductive Health (CGRH), Medical FacultyFaculty, VNUHCM, Vietnam, Ngô Thuỳ Ngọc Phương , Trần Dũng Huy ,   Research Center for Genetics and Reproductive Health (CGRH), Medical FacultyFaculty, VNUHCM, Vietnam
Published: September 2023

Pre-eclampsia is a medical complication in pregnancy that occurs in about 5% of pregnant women, after the 20th week of gestation. This complication causes serious health effects on pregnant women, even death in both those women and their fetuses. Pre-eclampsia patients are characterized by gestational hypertension associated with proteinuria and histological evidence of glomerular injury. Many reports suggested certain biomarkers of pre-eclampsia, including a decreased VEGF (Vascular Epithelial Growth Factor) level or an increased sFlt-1 (VEGF receptor) level in serum, which is related to an increase in the risk of this issue. Pre-eclampsia might be associated with an increased risk of several kidney diseases for many years following diagnosis with this issue. Evidence showed that women with a history of pre-eclampsia might have a higher risk of kidney diseases such as end-stage renal disease (ESRD) and focal segmental glomerulosclerosis (FSGS) than women with healthy pregnancies. Other studies showed that podocytes might be involved in glomerular lesions in pre-eclampsia patients. Podocytes are specialized epithelial cells located on the surface of the glomerular capillary, which is part of the glomerular filter membrane along with the endothelial cells and the glomerular basement membrane. Podocytes have a responsibility to ensure the glomerular membrane’s selective permeability. Some methods recently are being developed to detect the podocytes in urine samples such as immunohistochemistry, Reverse Transcriptase Polymerase Chain Reaction (RT – PCR), suggesting the potential application of those cells as biomarkers in the early diagnosis of pre-eclampsia. This review summarized the evidence about the role of podocytes in the pathological mechanism of pre-eclampsia, the risk of chronic kidney diseases as well as the potential predictive value of podocytes in the early diagnosis of pre-eclampsia.
The establishment of Chemical Reference Substances for Molnupiravir and Favipiravir
Authors:   Institute of Drug Quality Control HoChi Minh City, Vietnam, Trinh Hoang Duong , Tran Hai Nam ,   School of Medicine, Vietnam NationalUniversity Ho Chi Minh City, Vietnam, Mai Ha Phuong ,   School of Medicine, Vietnam NationalUniversity Ho Chi Minh City, Vietnam, Nguyen Hien Minh ,   School of Medicine, Vietnam NationalUniversity Ho Chi Minh City, Vietnam, Phan Nguyen Truong Thang ,   nstitute of Drug Quality Control HoChi Minh City, Vietnam, Tran Viet Hung ,   Institute of Drug Quality Control Ho Chi Minh City, Vietnam
Published: September 2023

Currently, scientists around the world are testing different compounds to find those that have the potential to aid in the treatment and recovery of COVID-19 patients. Favipiravir and Molnupiravir are two antiviral compounds commonly used to treat COVID-19 for mild and moderate patients in 5-7 days in Vietnam and some countries around the world. Preliminary clinical trials are positive, including significant reductions in hospitalization rates and mortality from COVID-19. These drugs are currently in the experimental phase, so no official chemical reference standard exists. That is why drug quality control studies are critical. The article studies establishing chemical comparators of Molnupiravir and Favipiravir to test drug quality in experimental studies. Modern methods such as infrared spectroscopy (IR), mass spectrometry (MS), nuclear magnetic resonance (NMR), and high-performance liquid chromatography (HPLC) are used in combination to evaluate the purity and quality of the drug. These compounds were then evaluated for homogeneity and assigned values to establish a reference substance based on ISO 17034:2017, World Health Organization Annex 3 (WHO technical series 943: 2007) combines suitable statistical methods to assess interlaboratory homogeneity ISO 13528:2015.
The correlation between refractive status and changes in higher-order aberration after small incision lenticule extraction for myopia and myopic astigmatism correction
Authors:   School of Medicine, Vietnam National University Ho Chi Minh City, Vietnam, Tran Bao Hong ,   Vietnam National University Ho Chi Minh City, Vietnam, Le Tuan Minh , Phan Mai Hong
Published: September 2023

Purpose: To evaluate the correlation between patient’s refractive status and changes in high-order aberration after small incision lenticule extraction in correcting myopia and myopic astigmatism. Methods: Prospective, longitudinal observational study. Sixty-six eyes from 33 myopia or myopic astigmatism patients were enrolled in this study. Patients uncorrected visual acuity (UCVA), best-corrected visual acuity (BCVA), refractive status, central corneal thickness, corneal refractive power, optical zone, lenticule thickness and 3 higher-order aberration values in Zernike polynomial (spherical aberration, coma and total root mean square) were recorded before the surgery and at 3-month follow-up. Results: At 3-month follow-up, 100% of eyes achieved 20/20 uncorrected visual acuity. There were statistically significant increases of spherical aberration, coma and total root mean square after the surgery; with post-operation changes of spherical aberration, coma and total root mean square being 0,1689 ± 0,0867 µm, 0,1771 ± 0,0941 µm and 0,3271 ± 0,1035 µm, in order (p < 0,001). A linear correlation was found between pre-operation spherical equivalent with changes of spherical aberration (R = 0,449; p < 0,01) and total root mean square (R = 0,229; p = 0,05). Conclusion: Small incision lenticule extraction results in good visual outcome, however still induces increase of higher-order aberration, especially in patients with high refraction.
Changes in definition and pathogenesis of bronchopulmonary dysplasia in preterm infants: A review
Authors:   School of Medicine, Vietnam National Univesity Ho Chi Minh City, Vietnam, Nguyễn Thanh Trí , Dương Ngọc Mai ,   Department of Neonatology, School of Medicine, Vietnam National Univesity Ho Chi Minh City, Vietnam, Nguyễn Thị Hoàng Yến ,   Department of Pharmacology, School of Medicine, Vietnam National Univesity Ho Chi Minh City, Vietnam
Published: September 2023

Bronchopulmonary dysplasia (BPD) is a common complication in preterm neonates, especially extremely preterm. However, effective prevention strategies and treatment methods are still being explored. Although the concept of BPD emerged a few decades ago, a consensus definition has not been established globally yet. The syndrome of BPD was introduced by Northway in 1967. With constant changes and improvements in newborn care and understanding about its pathogenesis, the definition of BPD has been changing and updated accordingly. NICHD (National Institute of Child Health and Human Development) first published the classification of BDP severity based on the level of required oxygen in 2001. Seventeen years later, in 2018, a new grading system was proposed to include new ventilation support methods. Unified diagnosis criteria and severity classification are important to facilitate consistent diagnosis between centers. Besides, understanding of BPD pathogenesis suggests antenatal risk factors such as genetic factors, intrauterine growth restriction, pre-eclampsia, inflammation, smoking during pregnancy; as well as postnatal risk factors such as oxygen toxicity, inflammation, moderate to large patent ductus arteriosus. Identification of these risk factors provides evidence for more effective treatment methods. This review describes the evolution of definitions, influence of lung development on BPD, and pathogenesis factors associated with BPD.
Deportation of Germans: adaptation and life according to oral historical sources (based on materials from the Eastern Region)
Authors:   Shakarim University, Atantayeva B. , Karibayeva A. ,   Shakarim University, Karibayev M. ,   Shakarim University
Published: September 2023

The article is devoted to the memory of the German people about the deportation of 1941, their oral memories of the resettlement and its consequences. The purpose of this article is to reveal the process of deportation and stay on the Kazakh land of one of the numerous ethnic groups - Germans who were moved from their native places. The main source was interviews with the descendants of the deportees who live in the territory of the Abai region. The information received from them is most valuable because they were directly involved in the deportation process, and the materials also make it possible to form an idea of the fate of the German people, to evaluate history not from the point of view of figures and official reports, but from the point of view ofpeople who were in a difficult life situation. There are many common plots in the narratives about the deportation and its consequences. These stories are filled with pain, representatives of the older generation try to push tragic memories out of their memory. It is concluded that, despite all the hardships, the German people, together with representatives of other ethnic groups, were able to adapt and contribute to the economic development of the region.
Factors that Influence Counterproductive Behavior at Gatot Soebroto Presidential Hospital
Authors: Dumonda Vera , Saptono Ari , Suparno Suparno
Published: September 2023

The purpose of this research is to identify the elements that influence counterproductive based on the variables of communication skills and competence at the Gatot Subroto Presidential Hospital. This is a quantitative study. The sample in this study consisted of 1580 voluntary employees, 1250 employees of the Gatot Soebroto Army Hospital, 330 employees of the YMU Pavilion, and 1136 nursing staff. The sampling technique used is probability sampling, namely random sampling. This is a survey method that employs path analysis. The study's findings revealed a good and significant direct relationship between communication skills and competency. There is a direct effect that is negative but not significant between communication skills and counterproductive behavior. However, there is a substantial relationship between communication skills on counterproductive behavior through competence. Finally, there is a considerable detrimental influence between competence on counterproductive behavior. Based on the results, it can be concluded that counterproductive behavior is influenced by communication skills through competence. Therefore, it is hoped that the Gatot Soebroto Army Central Hospital can improve communication skills and competencies to reduce counterproductive behavior in health workers working at the Gatot Soebroto Army Central Hospital.
The Effect of Empowerment and Emotional Intelligence on Innovation in Civil Servants
Authors: Suryo Roy , Hamidah Hamidah , Saptono Ari
Published: September 2023

This research aims to find out how the effect of empowerment and emotional intelligence is partially on innovation in civil servants. The civil servants used in this study were BPJS employees with a total sample of 110 respondents. The results of this study indicate that there is a positive and significant effect of empowerment on innovation. Emotional intelligence also has a positive and significant influence on innovation. The findings of this study indicate that emotional intelligence has the greatest influence compared to empowerment on employee innovation at BPJS. Suggestions for BPJS and further researchers are presented in this study.