bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dysrhythmia in acute coronary syndrome patients undergoing coronary artery bypass grafting surgery at hanoi heart hospital
Authors: Ngo Van Thanh , Nguyen Sinh Hien 
Published: August 2023

Objectives: Many studies have demonstrated arrhythmias were common in acute coronary syndrome and coronary artery bypass grafting surgery. Although the most of these arrhythmias were transient and have a benign course, but it may represent a significant source of morbidity and mortality. This study aimed to establish the temporal change pattern of arrhythmias observed to determine the incidence and characteristics of dysrhythmia.
Methods: A prospective method was used to study 52 consecutive patients with acute coronary syndrome who were assessed using 24-hour Holter recordings before CABG and 1 week, 3 months, and 6 months after the surgery from June 2016 to August 2018 at Hanoi Heart Hospital.
Results: New appearance of atrial fibrillation after coronary artery bypass grafting surgery increased by time, at 7 days was 17.3%, after 3 and 6 months were 10 - 18.4%. Percentage of ventricular dysrhythmias was highest before surgery 8.67%, decreased after surgery and lowest after 6 months. The rate of short ventricular tachycardia at 7 days after surgery was highest (11.8%), followed by the preoperative period (3.8%), decreased and disappeared after 6 months. Ventricular arrhythmias with Lown (grade > 3) preoperative was 44.2%, increased at 7 days postop was 51.9% and decreased postop 3 - 6 month (28 - 20%).
Conclusion: New appearances of atrial fibrillation after coronary artery bypass grafting surgery increased by time. Dysrhythmia was acutely affected by myocardial ischemia and coronary artery bypass grafting surgery.
Morphological features of the left atrial appendage on multislices computed tomography in patients with non-valvular atrial fibrilation
Authors: Pham Thi An , Tran Thi An , Tran Tien Manh 
Published: August 2023

Objective: To study morphological characteristics of left atrial appendage on computed tomography in patients with non-valvular atrial fibrillation. [1]
Methods: A cross-sectional descriptive study was conducted in 66 patients with non-valvular atrial fibrilation who underwent multislices computed tomography at Hanoi Heart Hospital from August 2020 to October 2022. Data of medical history, clinical examination, ECG, echocardiography were collected. We assessed the length, lobe number, and morphological classification of their LAAs on multislices computed tomography.
Result: From 8/2020 to 10/2022, 66 patients were included in the study, the mean age was 58,4 ± 10,8 with male/femail ratio of 3/1. The proportion of left atrium morphology including chicken wing, wind sock, cauliflower and cactus is 56,6%; 19,7%; 12,1% and 10,6%, respectively. Most of the left atrium in the study group had 2 lobé (51,5%), 3 lobes (21,2%), 1 lobe (18,2%) and 4 lobes (9,1%). There was no diference in left atrial appendage morphology according to CHA2DS2-VASc score, and risk factors for atrial fibrillation (gender, heart failure, hypertension, diabetes, stroke). Patients with left atrial dilatation (LAVi > 34ml/m2) had a larger mouth diameter and area than the group without left atrial dilatation (p< 0,001 and 0,008).
Conclusion: The left atrial appendage has 4 main morphologies: chicken wing, wind sock, cauliflower and cactus, in which the chicken wing shape is the most common. Most of the left atrial appendage have 2 lobes and 3 lobes. There was no difference in left atrial appendage morphology by age group, atrial fibrillation risk factors.
The value of 12-lead electrocardiography in predictive mechanism of regular narrow qrs complex paroxysmal supraventricular tachycardias
Authors: Nguyen Sinh Huy , Nguyen The Nam Huy , Nguyen Van Dan , Nguyen Xuan Tuan 
Published: August 2023

Background: Paroxysmal supraventricular tachycardia (NNKPTT) is the most common clinical occurrence, affecting hemodynamics and causing symptoms of palpitations and dyspnea in patients. Of the mechanisms that cause paroxysmal supraventricular tachycardia, atrioventricular nodal re-entry tachycardia (AVNRT), atrioventricular re-entrant tachycardia (AVRT), and atrial tachycardia (AT) are the most common and difficult to distinguish each other. The electrocardiogram can be used to confirm and diagnose the mechanism of paroxysmal supraventricular tachycardia. [1]
Objectives: to evaluate the predictive ability of the 12-lead electrocardiogram to predict the mechanism of paroxysmal supraventricular tachycardia with regular narrow QRS complex. Methods: cross-sectional descriptive method for 92 patients.
Results: prevalence of paroxysmal supraventricular tachycardia mechanisms in the study was: atrioventricular nodal reentry tachycardia accounted for 69.6%; atrioventricular reentry tachycardia accounted for 27.2%; atrial tachycardia accounted for 3.4%. In univariate regression analysis, the ECG criteria with 95% CI of OR not containing a value of 1 were: clear P' wave, pseudo r' wave in V1, ST-T segment change, electrical alternation , pseudo r wave in aVR. In the multivariable regression model, the independent predictors AVNRT with AVRT are clear P' waves and ST–T segment changes.
Minimally invasive surgical closure for ventricular septal defects through a horizontal right axillary minithoracotomy: early results at one center
Authors: Nguyen Dang Hung , Nguyen Sinh Hien , Vu Ngoc Tu , Nguyen Huu Phong 
Published: August 2023

Objectives: To investigate the early outcomes and cosmetic results of a horizontal right axillary minithoracotomy for closure of ventricular septal defects (VSDs) at Hanoi Heart Hospital.[1]
Methods: a descriptive cross-sectional study. We retrospectively reviewed 119 children who underwent horizontal right axillary minithoracotomy for ventricular septal defects closure at Hanoi Heart Hospital from January 2022 to December 2022.
Results: the average weight was 11.1 ± 8.2 kg, from 2.6 to 51.0 kg. The number of children below 6 months old accounted for 34.5% (41 patients). The rates of perimembranous VSD, infundibular VSD, inlet VSD, and muscular VSD were 68.1%, 27.7%, 3.4%, and 0.8%, respectively. The aortic cross-clamping time was 53.1 ± 23.5 minutes, the duration of cardiopulmonary bypass was 77.9 ± 29.7 minutes. The length of postoperative hospital stay was 7.4 ± 2.3 days. Postoperative residual shunt accounted for 5.9%, the rate of severe complications and hospital mortality were 0%.
Conclusion: ventricular septal defects repair through a horizontal right axillary minithoracotomy at Hanoi Heart Hospital provided good early outcomes with satisfactory aesthetic results.
Microbiological and echocardiography characteristics in the prosthetic valve endocarditis patients
Authors: Le Thi Hoai Thu , Ngo Van Thanh , Pham Nhu Hung 
Published: August 2023

Objectives: The goal of the study was description the status of describe microbiological and cardiac injury characteristics through echocardiographic images in prosthetic valve endocarditis patients.
Methods & Results: Cross-sectional description of 64 prosthetic valve endocarditis patients at Hanoi Heart Hospital and Cardiology Institute - Bach Mai Hospital from June 2016 to August 2018. Aged 54.01±17.25 (18-84) years old, (60.9% male). Bacterial endocarditis was found in 50% of cases, the most common causative pathogens were Gr(+) bacteria 81.25% (26/32), Gr(-) bacteria 18.75%, multi drug resistant 22.73%. The results of antibiogram showed that Staphylococcus aureus and the group of Gr (-) bacteria had the highest antibiotic resistance. Echocardiographic characteristics of infective endocarditis mitral valve 57.8%, aortic valve 34.4%, in many valve sites very few (3.1%). Biological aortic valve (27.6%) lower than mechanical aortic valve (63.6%). The aortic valve had multiple vegetations (45.65%), size of vegetations was 11.3±4.26 (mm), periprosthetic aortic abscess and dehiscence at the lateral annulus (17.39%). Biological mitral valve (48.7%), mechanical mitral valve (51.3%). Mitral valve had multiple vegetations (60.66%), size of vegetations was 8.99±5.6 (mm), prosthetic valve with dehiscence at the lateral annulus (11.48%). Early infectious endocarditis postop was characterized by heart failure, reoperation and mortality higher than lated infective endocarditis (p>0.05).
Conclusions: The half of prosthetic valve endocarditis had bacterial evidence, common causative pathogens were Gram positives. Multi drug resistant due to staphylococcus aureus and Gram negatives. Prosthetic mitral valve endocarditis had the highest rate, followed by prosthetic aortic valve, endocarditis lesions in many valve sites were few. The Characteristics of prosthetic aortic valve werre periprosthetic aortic abscess and dehiscence at the lateral annulus, the mitral valve had multiple vegetations.
Result assessment of typical atrial flutter ablation base on application of three-dimensional electroanatomy mapping at Hanoi heart hospital
Authors: Nguyen Xuan Tuan , Nguyen The Nam Huy , Phan Thanh Nam , Nguyen Sinh Huy , Nguyen Duc Hanh 
Published: August 2023

Background: Atrial flutter is a rare type of arrhythmia in clinical practice, but it is a long-lasting complex arrhythmia that causes uncomfortable symptoms and serious complications. The method of ablation of atrial flutter using X-ray irradiation has many shortcomings such as prolonged irradiation time, and the success rate is only 80-85%. The method of ablation using the 3-Dimensional electrical mapping method has been widely used in typical atrial flutter ablation, but there have not been many studies evaluating its effectiveness, so we carry out this study.
Objectives of the study: Assessment for electrocardiography, electrophysiology study characteristic, and ablation result of typical atrial flutter using three-dimensional electrical mapping.
Research objects and methods: case series study, 17 patients diagnosed with atrial flutter were electrophysiology study and ablated from 10/2019 to 10/2022 at Hanoi Heart Hospital.
Results: Regarding the effectiveness of atrial flutter ablation, 100% of patients with atrial flutter caused a seizure and successfully ablated atrial flutter by RF. In terms of procedure time, our study has an average of 103.53 ± 74.64 minutes for each procedure, of which the fastest is 20 minutes and the longest is 360 minutes. Regarding the time of X-ray irradiation, the average of our study was 10.67 ± 9.86 minutes, of which the shortest was 4 minutes and the longest was 45 minutes.
Conclusion: Typical atrial flutter ablation based on 3D mapping application has had high success at Hanoi heart hospital.
Investigate the prescription of outpatients with acute coronary syndromes at Hanoi heart hospital
Authors: Nguyen Huu Duy , Hoang Ha Trang , Nguyen Thi Lien Huong , Vu Quynh Nga 
Published: August 2023

Objective: the study aimed to analyze the prescription of recommended drugs in outpatients with acute coronary syndromes (ACS) at Hanoi Heart Hospital.
Subjects and methods: Cross-sectional study on outpatients with ACS between 1 January to 31 March 2021 at Hanoi Heart Hospital.
Results: The study enrolled 154 patients. At discharge, the proportion of patients with the 4 recommended drugs was 63.0%. At 12 months after discharge, the proportion of patients using high-intensity statin decreased from 87.7% to 42.0%. ACS patients with EF ≤ 40% have a higher rate of prescribing ACEI/ARB and beta blockers.[1]
Conclusion: After 1 year, the majority of patients prescribed the recommended drug. Prescription rates of high-intensity statin need to be improved to prevent cardiovascular events.
Transcatheter closure of perimembranous ventricular septal defects by coils le
Authors: Nguyen Cong Ha 
Published: August 2023

Background: Ventricular septal defect (VSD) is the most frequently occurring congenital cardiac disease, accounts nearly 20-30% of all cases.
Surgery still the corrective therapy with high success and low complication but having some problems: cardiopulmonary bypass, anesthesia, ICU, sternalitis, chest scar...
Recently many progress in cardiac intervention applied to treat congenital heart disease especially percutaneous VSD closure. currently patients with VSD have other choice to cure safely, effectively and less complication.[1]
Objectives: To evaluate the long-term (more than 3 years follow-up) results from transcatheter closure of perimembranous VSD by Coil Le.
Methods: This is the descriptive clinical trial and follow-up.
Result: 27 patients selected by echocardiography, 25 patients were closed successfully (92.6% success rate) with Coil Le. Complete occlusion (no shunt) is 96.0% and no late AVB at least 3 years follow-up.
Conclusions: Transcatheter closure of perimembranous VSD by Coil Le is effective with high occlusion rate, no significant complications and is suitable for selected PMVSD.
Transpercutaneous closure of perimembranous ventricular septal defects by patent ductus occlusion (pdoi)
Authors: Nguyen Cong Ha 
Published: August 2023

Background: Ventricular septal defect (VSD) is the most frequently occurring congenital cardiac disease, accounts nearly 20-30% of all cases.
Surgery still the corrective therapy with high success and low complication but having some problems: cardiopulmonary bypass, anesthesia, ICU, sternalitis, chest scar...
Recently many progress in cardiac intervention applied to treat congenital heart disease especially transpercutaneous VSD closure. currently patients with VSD have other choice to cure safely, effectively and less complication.[1]
Objectives: To evaluate the long-term rusults from transpercutaneous closure of perimembranous VSD by PDOI.
Methods: This is the descriptive clinical trial and follow-up.
Result: 112 patients selected by echocardiography, 107 patients were closed successfully (95.5% success rate), mean time 41 months (37-60) follow-up: occlusive rate 99.1%, no significant complication (no late AVB, worsened TV regurgitation, aortic valve).
Conclusions: Transpercutaneous closure of perimembranous VSD by PDOI is effective and safe, is suitable for selected PMVSD.
Some results on the open subset intersection graph of a product topological space
Authors: Madan Reeta , Pathak Soni , Muneshwar R. A. , Bondar K. L. 
Published: August 2023

In the recent paper, R. A. Muneshwar et al., introduced a graph structure called open subset intersection graph g(t) on a topological space (X, t). In this paper, we study some important results of a graph g(t) of a product topological space (X × Y, t). We also determine relationship between diameter, girth, clique number, chromatic number, domination number etc. of an open subset intersection graph of a topological space (X × Y, t), (X, tX) and (Y, tY). Moreover, we proved that, if (X, tX) and (Y, tY) are discrete topological space then w(g(tX × tY)) = w(g(tX)) * w(g(tY)) – 2 and c(g(tX × tY)) = c(g(tX)) * c(g(tY)) – 2 and domination number of g(tX × tY) is 2. We also determine diameter and girth of intersection Graph of Product Topology on X × Y for different values of m and n.
A perspective analysis on human resources and suggestive measures to improve their workforce in Indian context
Authors: Roopaa S. Bhawiya , Kogila N. , Balasubramanian P. 
Published: August 2023

India is a country where there is an abundant supply of human resources but at the same time their quality and standard of workforce is very low. On the basis of the report given by UNO India was placed at 131th rank in terms of Human Development Index (HDI) but compared with in the less developed countries the index is very little low. From the days of independence the Government of India has launched various programmes and policies to improve their working efficiency but the Government was not able to achieve the desired results. There were many more policies ensuring better productive workforce to increase their standard and quality of the production process so as to achieve the better results. In Indian context these programmes like social security and compensation policies not only safeguard the interest of the working class but are also providing a fair and competitive wages. Proper HR policies are needed so as to tap their ful working capacity and also to improve the status of the firm. More precisely the working class in India has drastically faced many challenges and risks under the globalization period. The authors makes an attempt to analyse the role of human resources in Indian context and certain suggestive measures to improve their workforce in a detailed manner are brought out in this paper with some illustrations.
Rapserträge gehen zurück
Authors: Schaal René 
Published: August 2023

Frankfurt a.M. Auch wenn die Erntebedingungen in vielen Teilen Deutschlands alles andere als einfach waren und noch immer sind, konnten die Rapsanbauer im Schnitt gute Erträge einfahren – wenn auch nicht auf dem Niveau des Vorjahres. Zu diesem Ergebnis kommt das diesjährige Erntemonitoring des Rapool-Rings.
Assessment of Learning Disabilities for Future Implications of Physical Education Students
Authors: Khan Alamgir , Iqbal Butt Muhammad Zafar , Jamil Muhammad 
Published: August 2023

The present study aimed to assess the learning disabilities of physical education students and to suggest future implications. The study population comprised all the students of sports sciences and physical education (SSPE), University of the Punjab, Lahore, Pakistan. Thus, three hundred students were taken as samples using available sampling techniques. For the collection of data, a Likert-type scale comprised of questions about four different learning disabilities, i.e. dysgraphia, dyscalculia, dyspraxia and dyslexia. The gathered data were administered through the statistical package for social sciences (SPSS, version-26); thus, pertinent statistical tools were used for analysis. After data analysis, the researcher concluded that dyscalculia as learning was the most common learning problem among the students. Based on the conclusion, the researcher recommended that sports sciences and physical education students need special attention in mathematical activities compared to all other academic subjects.
Trends and seasonal variability in ammonia across major biomes in western and central Africa inferred from long-term series of ground-based and satellite measurements
Authors: Ossohou Money , Hickman Jonathan Edward , Clarisse Lieven , Coheur Pierre-François , Van Damme Martin , Adon Marcellin , Yoboué Véronique , Gardrat Eric , Alvès Maria Dias , Galy-Lacaux Corinne 
Published: August 2023

Abstract. Ammonia (NH3) is the most abundant alkaline
component in the atmosphere. Changes in NH3 concentrations have
important implications for atmospheric chemistry, air quality, and ecosystem
integrity. We present a long-term ammonia (NH3) assessment in the
western and central African regions within the framework of the International
Network to study Deposition and Atmospheric chemistry in Africa (INDAAF)
programme. We analyse seasonal variations and trends in NH3
concentrations and total column densities along an African ecosystem
transect spanning dry savannas in Banizoumbou, Niger, and Katibougou, Mali;
wet savannas in Djougou, Benin, and Lamto, Côte d'Ivoire; and forests in Bomassa, Republic of the Congo, and Zoétélé, Cameroon. We use a
21-year record of observations (1998–2018) from INDAAF passive samplers and an 11-year record of observations (2008–2018) of atmospheric vertical column densities from the Infrared Atmospheric Sounding Interferometer (IASI) to evaluate NH3 ground-based concentrations and total column densities,
respectively. Climatic data (air temperature, rainfall amount, and leaf area
index), as well as ammonia emission data of biomass combustion from the
fourth version of the Global Fire Emissions Database (GFED4) and
anthropogenic sources from the Community Emissions Data System (CEDS), were
compared with total NH3 concentrations and total columns over the same
periods. Annual mean ground-based NH3 concentrations are around 5.7–5.8 ppb in dry savannas, 3.5–4.7 ppb in wet savannas, and 3.4–5.6 ppb in forests. Annual IASI NH3 total column densities are 10.0–10.7 × 1015 molec. cm−2 in dry savanna, 16.0–20.9 × 1015 molec. cm−2 in wet
savanna, and 12.4–13.8 × 1015 molec. cm−2 in forest stations. Non-parametric statistical Mann–Kendall trend tests applied to annual data show that ground-based NH3 concentrations increase at Bomassa (+2.56 % yr−1) but decrease at Zoétélé (−2.95 % yr−1) over the 21-year period. The 11-year period of IASI NH3 total column density measurements show yearly increasing trends at Katibougou (+3.46 % yr−1), Djougou (+2.24 % yr−1), and Zoétélé (+3.42 % yr−1). From the outcome of our
investigation, we conclude that air temperature, leaf area index, and
rainfall combined with biomass burning, agricultural, and residential
activities are the key drivers of atmospheric NH3 in the INDAAF
stations. The results also show that the drivers of trends are (1) agriculture in the dry savanna of Katibougou; (2) air temperature and agriculture in the wet savanna of Djougou and Lamto; and (3) leaf area index, air temperature, residential, and agriculture in the forest of Bomassa.
Use of Electronic Information Resources by the Faculty of Banaras Hindu University: A Survey
Authors: AnandaMurugan M. 
Published: August 2023

Availability of e-resources has changed what users actually read and use. They now tend to use only what is easily accessible. The objectives of the study were to determine faculty members knowledge of e-resources; faculty’s access to computers and use of e-resources, both number and frequency; and the areas of training needed by faculty to utilize e-resources efficiently and effectively and to recommend how the library could fulfill identified training needs and what strategies the library could use to improve service as well as what areas the library could research further. A survey was administered to faculty in medicine, pharmacy, dentistry, and veterinary sciences at The University of the West Indies.The questions covered computer literacy, computer access and location, knowledge and use of electronic resources, and training needs.
МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ ТЕХНОЛОГИЧЕСКОГО ВЗАИМОДЕЙСТВИЯ МОРСКИХ И ТЫЛОВЫХ КОНТЕЙНЕРНЫХ ТЕРМИНАЛОВ
Authors: Табылов Абзал , Суйеуова Набат , Юсупов Асгербек , Рзаева Камар , Билашова Гульмира 
Published: August 2023

Актуальность исследования проблемы взаимодействия железнодорожного и морского транспорта в припортовых транспортных узлах объясняется её непосредственным влиянием на улучшение качества жизни людей и важностью для развития всего транспортного комплекса государства, повышения эффективности его работы. Статья посвящена вопросам технологического взаимодействия морских и тыловых контейнерных терминалов в рамках планирования работы наземных сетей грузораспределения. Основная задача исследования - получение необходимых сведений об уровне технологического взаимодействия морского и тылового контейнерных терминалов в двухзвенной системе и параметрах складов терминалов и анализ выработки механизма образования объема груза на складе морского и тылового контейнерного терминала. Аналитическими методами выведена формула для вычисления максимальной емкости складов терминалов и определены значения базовой вместимости складов морского и тылового терминалов для экспортного и импортного направлений. Использованы методы математического моделирования для построения имитационной модели двухзвенной системы: морской терминал – тыловой терминал, позволяющей оценить влияние неравномерности поступления транспортных средств на величину необходимого объема складов морского и тылового терминалов. Это позволяет минимизировать портовые складские площади хранения, парк перегрузочного оборудования и обеспечивает рациональное распределение объема работы перегрузочной техники с соразмерным реагированием на изменения размеров и частоты поступлений требуемых партий на терминал. Результаты исследования могут быть использованы для оптимального планирования работы морского транспорта и инфраструктурных объектов морского порта.