bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengembangan Virtual Laboratory Termodinamika di Sekolah Menengah Atas
Authors: Purwandari Elce 
Published: January 2020

This study aims to produce virtual laboratory thermodinamic that is valid, practical, and effective used in learning physics at SMAN 2 Palembang. Using development research methods the Hannafin and Peck model which consist of three phases, namely analysis phases, design phases, and development and implementation phases. At the development and implementation phases of evaluation method of Tessmer. Virtual laboratory are declared valid after an evaluation by an expert review. Virtual laboratory is then evaluated by students in the phase of one-to-one and small group and is declared very practical to use. The results of data analysis of Learning motivation of the students increase an average from 0,69 become 0,8, learning outcomes of the students increase an averag from 43,13 become 76,13. The results of N-gain analysis show an 0,58 with a medium category. It was concluded that virtual laboratory thermodynamic it has been developed was proven to be valid, practical, and effective.This shows that virtual laboratory thermodynamic can be developed, practical to used, and increases motivation and student cognitive learning outcomes.
Keywords:Virtual Laboratory, Thermodynamics, Valid, Practical, and Effective
Algoritma Welch-Powell Untuk Pewarnaan Graf pada Penjadwalan Perkuliahan
Authors: Rusdiana Yulianti , Maulani Alfi 
Published: January 2020

Scheduling is a principal administrative activity in most universities. The problem that often faced is the lecture timetable and course distribution are still manually and have not fully paid attention to the field of science that matches the interests of the lecturer. To overcome these problems, the authors use Welch-Powell's algorithm to arrange lecture arrangement schedules with expectations that the scheduling will be faster and optimal and more satisfying to various parties. The results of applying Welch-Powell's Algorithm to the willingness of lecturers to teach available courses provide four colors. The results are used to map lecturers and subjects that are supported by class availability to ensure that lecturers with the same course choices must be placed in different classes. In meeting class needs, one lecturer can handle several subjects, and several lecturers can teach one subject. The results of applying the Welch-Powell Algorithm to the suitability of teaching time give 29 colours. These results are used to map lecture time to ensure that lecturers with the same choice of time should be provided in different classes.
Keywords: Vertex, Colouring, Welch-Powell's algorithm
Motivasi Belajar dan Prestasi Belajar Fisika Ditinjau dari Jenis Kelamin
Authors: Harso Aloisius , Merdja Juwita 
Published: January 2020

The purpose of this study is to analyze the differences in learning motivation and physics learning outcomes between male and female students of class X. This research is a comparative causal research which is an ex post facto research. The population of this research is all of the tenth grade high school students in Nangapanda District as many as 220 students. The sample was determined by proportional random sampling, amounting to 80 students. Data collected in this study are students' learning motivation obtained through the provision of a learning motivation questionnaire and physics learning achievement obtained through physics learning achievement tests in the form of multiple choice questions. Data were analyzed using descriptive statistics and ANAVA. As a follow-up to ANAVA, a Least Significant Difference (LSD) was used to test the comparison of the pairs of average scores for each gender group. The results of this study indicate that there are differences in learning motivation (F = 62,139; p <0.05) and physics learning achievement (F = 11,377; p <0.05) which are significant between female and male students. Female students have higher learning motivation and physics learning achievement compared to male students.
Keywords: Learning Motivation, Physics Learning Achievement, Gender
Prediction of Nominal Compressive Strength in Steel Piles Subject to Corrosion Losses: A Finite Element Approach
Authors: Bailey Breanna , Osomo Sidiq A. 
Published: January 2020

This paper presents a method for predicting the nominal compressive strength of steel I-shaped piles subject to cross-sectional losses caused by corrosion. The method requires a finite element linear buckling analysis of the corroded cross-section. Results from the finite element buckling analysis may be integrated into design capacity equations contained in the 15th edition of the American Institute of Steel Construction Steel Construction Manual. Non-linear post-buckling analyses were used to verify the accuracy of the proposed method. Three cross-sectional geometries (W14x82, W14x90, and W14x120) were analyzed at varying degrees of cross-sectional loss. Results show close agreement between the non-linear finite element analyses and the proposed method of calculating nominal compressive strength.
Post-waterlogging Rescue Nitrogen Improves Waterlogging Tolerance in Mungbean (Vigna radiata)
Authors: Islam Md Rafiqul , Hasan Mehfuz , Akter Munny , Shibly Nazmun Nahar 
Published: January 2020

The study was conducted at the Stress Research Site of the Department of Agronomy of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh during the period from April to July 2017 to evaluate the effect of rescue nitrogen fertilizer for improving the performance of waterlogging tolerance in mungbean genotype VC-6173A. Both waterlogged and non-waterlogged mungbean plants were received varying doses of rescue nitrogen from urea fertilizer. The rescue nitrogen (N) treatments were: N0-no rescue N; N30 - 20 and 10 kg ha-1 rescue N applied at 0-day and 15-day after removal of waterlogging (ARW); N40 - 30 and 10 kg ha-1 rescue N applied at 0-day and 15-day ARW and N50 - 40 and 10 kg ha-1 rescue N applied at 0-day and 15-day ARW. The study was laid out in a randomized complete block design with four replications. Different levels of rescue N improved plant height, leaf chlorophyll index, phonological period, plant growth, pod formation and seed yield of mungbean. N-treated plants showed higher relative SPAD chlorophyll values and the increment was higher for higher N-dose. Waterlogging reduced 40% root dry matter and 34% both shoot and total dry matter relative to non-waterlogged plants. Rescue N significantly increased both the root and shoot dry matter. The waterlogged plants without rescue N showed 29% reduction in the number of pods per plant and the reduction showed 13% for rescue N40 in waterlogged plants. The seed yield reduction was 25% in waterlogged plants without rescue N but with rescue N, seed yield remarkably increased particularly in N40-treated plants. Therefore, the study suggests that rescue N fertilizer application may be a viable practice in improving waterlogging tolerance and increasing yield of mungbean.
The Agriculturists 2019; 17(1-2) 01-13
Morpho-physiological Response of Gliricidia sepium to Seawater-induced Salt Stress
Authors: Rahman MA , Das AK , Saha SR , Uddin MM , Rahman MM 
Published: January 2020

Soil degradation due to the contamination of excessive saline water has been threatening soil health vis a vis plant productivity worldwide. Gliricidia sepium, a fertilizer tree, has come into limelight in recent decades in Bangladesh due to its potency in improving soil fertility. However, study on its suitability in coastal areas alongside identifying the salt-endurance limit is still lacking. Therefore, morpho-physiological attributes of G. sepium under seawater-induced different levels of salt stress were analyzed in a pot experiment from March to May 2018 to gain an insight into its salt-adaptive mechanisms. Results revealed that seawater-induced salinity negatively affected the growth-related attributes, such as plant height, fresh weight of shoots, dry weights of shoots and roots, and leaf area. The reduction of growth was coincided with reductions in photosynthetic pigments and relative water content. Interestingly, salt tolerance index was not decreased in parallel with increasing dosages of seawater, indicating the salt tolerance capacity of G. sepium. Furthermore, enhanced accumulation of proline increased the osmoprotective capacity of G. sepium in order to overcome the salt-induced osmotic stress. The results of the present study concluded that G. sepium might be suitable for growing in the salt prone areas ranging 20 – 40 dSm-1.
The Agriculturists 2019; 17(1-2) 66-75
Evaluation of Blackgram (Vigna mungo L.) Genotypes for their Tolerance to Flooding
Authors: Rana MS , Hossain MA , Urmi TA , Ahmed S , Haque MM , Islam MM 
Published: January 2020

Waterlogging is one the major abiotic stresses that affects growth and yield of blackgram. A field experiment was carried out at the experimental field of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706 during kharif II season to evaluate 26 blackgram genotypes for understanding the flood tolerance in respect of yield and yield contributing characters. The experiment was laid out with a randomized complete block design with three replications. Water logging depth was 3-5 cm, created by irrigation from tap water and imposed at 29 days after emergence of seedlings which was maintained for 8 days. Multivariate analysis was performed involving eight qualitative plant characters. A wide range of variation was found for all the qualitative plant characters like plant height, plant dry weight, branches per plant, pods per plant, pod length, seeds per pod, 1000-seed weight and yield per plant. Flooding reduced all the growth parameters of blackgram but degree of reduction varied greatly over the blackgram genotypes. Considering yield performance, the genotypes BU Acc 25 showed the highest yield per plant (9.03 g) followed by the BU Acc 17 (6.47 g) and BU Acc 24 (6.17) under flooding . The yield reduction percent of the same genotypes were minimum (43.86, 60.82 and 65.96, respectively) compared to control which is very important for selection of those genotypes as a flooding tolerant.
The Agriculturists 2019; 17(1-2) 89-101
Comparison of In-Hospital Outcomes Between Patients With or Without Acute Kidney Injury Developed After Hospitalization Following Acute Coronary Syndrome
Authors: Safi Md Sajjad , Chowdhury Msi Tipu , Parvin Tanjima , Ahmed Khurshed , Sultana Md Ashraf Uddin , Banerjee Sajal Krishna 
Published: January 2020

Background: Acute Kidney Injury (AKI), a common complication of acute coronary syndromes (ACS), is associated with higher mortality and longer hospital stays. ACS patients with renal impairment during hospitalization are associated with adverse in-hospital outcomes in the form of heart failure, cardiogenic shock, arrhythmia, dialysis requirement and mortality.
Objective: To compare the in-hospital adverse outcomesof patients with ACS with or without AKI.
Materials and Methods: This prospective comparative study was conducted in the Department of Cardiology, BSMMU, Dhaka, during the period of August 2017 to July 2018. A total of 70 eligible patients were included in this study of which 35 patients were included in group A (ACS with AKI) and 35 patients were included in group B (ACS without AKI). AKI was diagnosed, on the basis of increased serum creatinine level 0.3mg/dL from baseline within 48 hours after hospitalization. They were subjected to electrocardiography, blood test for serum creatinine (on admission, 12 hours, 48 hours and at the time of discharge), lipid profile, 2-D echocardiography along with serum troponin, CK MB and electrolytes.
Results: It was observed that mean age was 58.0±8.5 years in group A and 55.6±12.3 years in group B. Heart failure was more common in group A than in Group B (74.3% vs 34.2% p=0.001 respectively) and arrhythmia was more common in group A than in Group B (100% vs 74.2% respectively). 7(20%) patients of group A required dialysis. The mean duration of hospital stay was significantly higher in Group A than in the Group B (9.4±2.3 vs 7.2±0.6; p=0.001) days. Multiple logistic regression analysis revealed that heart failure, cardiogenic shock, duration of hospital stay were found to be the independently significant predictors of outcome of the patients with AKI with odds ratio being 5.53 (p=0.001), 4.353 (p=0.001) and 6.92 (p=0.001)
Conclusion: This study shows that, heart failure, cardiogenic shock, arrhythmia, dialysis requirement, were more common in the patients with AKI (group A) than in the patients without AKI (group B). The duration of hospital stays were longer in patients with AKI (group A) than in the patients without AKI (group B). Therefore, an important research target is the identification of high-risk patients with ACS experiencing AKI, thereby appropriate medication and follow-up should be implemented.
University Heart Journal Vol. 16, No. 1, Jan 2020; 3-10
The Pattern of Cardiac Arrhythmias in Acute ST Elevated Myocardial Infarction and their in-hospital Outcome
Authors: Alam Mohammad Khurshadul , Mahmood Manzoor , Adhikary Dipal Krishna , Khaled Fakhrul Islam , Chowdhury Msi Tipu , Hasan Amanat , Islam Sami Nazrul , Sultan Md Ashraf Uddin , Banerjee Sajal Krishna 
Published: January 2020

Background: Acute myocardial infarction (AMI) is a major cause of death worldwide with arrhythmia being the most common determinant in the post-infarction period. Identification and management of arrhythmias at an early period of acute MI has both short term and long term significance.
Objective: The aim of the study is to evaluate the pattern of arrhythmias in acute STEMI in the first 48 hours of hospitalization and their inhospital outcome.
Methods: A total of 50 patients with acute STEMI were included in the study after considering the inclusion and exclusion criteria. The patients were observed for the first 48 hours of hospitalization for detection of arrhythmia with baseline ECG at admission and continuous cardiac monitoring in the CCU. The pattern of the arrhythmias during this period & their in-hospital outcome were recorded in predesigned structured data collection sheet.
Result: The mean age was 53.38 ± 10.22 years ranging from 29 to 70 years. Most of the patients were male 42(84%). Majority of the patients had anterior wall ( anterior, antero-septal & extensive anterior) myocardial infarction (54%). Sinus tachycardia in isolation was the most common arrhythmia observed in 36.8% of patients followed by sinus bradycardia (22.8%), ventricular tachycardia (19.3%), ventricular ectopic (12.3%),first degree AV block (5.3%), complete heart block and atrial ectopic 1.7% each. Tachyarrhythmias were more common in anterior wall myocardial infarction, whereas bradyarrhythmias were more common in inferior wall myocardial infarction. Among studied patients, 72% had favourable outcome , followed by acute left ventricular failure 10%, cardiogenic shock & lengthening of hospital stay 8% each and death 2%.
Conclusion: The commonest arrhythmias encountered were sinus tachycardia followed by sinus bradycardia, ventricular tachycardia, ventricular ectopic, AV block and atrial ectopic. The incidence of mortality was 2%.
University Heart Journal Vol. 16, No. 1, Jan 2020; 16-21
Role of serum β2m in predicting severity of Coronary artery disease
Authors: Nessa Zebun , Ferdoushi Sheuly , Khaled Md Fakhrul Islam , Islam Saiful , Jahan Nasrin , Adhikary Dipal K , Kahnam Khaleda , Mahejabeen - , Sultana Tuhin , Paul Debatosh 
Published: January 2020

Background: Coronary artery disease is the principal cause of disability and mortality worldwide. Its prevalence is increasing around world. It is about 75% of deaths occurring in developing countries like Bangladesh. It is very important to know about the inflammatory risk factors of coronary artery disease for early assessment of coronary artery disease. Serumβ2-microglobulin (²2m) is a newly identified biomarker that has been found to increase in patients with coronary artery disease. Aims: To determine the role of â2m in predicting the severity of coronary artery disease.
Methods: This cross-sectional study was carried out in Department of Cardiology and Laboratory Medicine, BSMMU, Shahbag, Dhaka during March 2017 to February 2018. Total seventy four patients who underwent coronary angiography as per criteria where included in this study. Serum β2-microglobulin (²2m)was done before angiography procedure by indirect ELISA method and severity of coronary artery disease was assessed by extent of diseased coronary vessels and SYNTAX score.
Results: β2-microglobulin level was found higher (≥3/ml) in coronary artery disease patients which was statistically significant (p<0.001).β2-microglobulin was also correlated with number of diseased coronary vessels (r=0.562, p<0.001). Mean â2m level was found 4.48±0.95 μg/ml with range from 3-6.1 μg/ml and the mean SYNTAX score was found 16.27±08.99 with the range from 1 to 44. Pearson’s correlation coefficient was done between â2m level and SYNTAX score. Then the result is r=0.547 and p<0.001. Therefore, there was a positive correlation between â2m level and SYNTAX score. The area under the receiver-operator characteristic (ROC) curves ²2m cut off value of 3.6 with 81.4% sensitivity and 86.7% specificity as the value for identifying the coronary artery disease.
Conclusion: Our study revealed that β2-microglobulin effectively correlates with the severity of coronary artery disease. So it may be used as a reliable marker for assessment of coronary artery disease severity.
University Heart Journal Vol. 16, No. 1, Jan 2020; 22-27
Effect of PCI on QTC Dispersion in Patients with Angina
Authors: Islam Md Shafiqul , Mondal Shekhar Kumar , Jahan Jafrin , Arefin Minhaj , Ahmed Nishat , Das Pinaki Ranjan , Azam MG 
Published: January 2020

Background:‘Coronary heart disease (CHD) is now the leading cause of death worldwide; it is on the rise and has become a true pandemic that respects no borders. For the diagnosis of coronary artery disease, the 12 leads electrocardiogram (ECG) is the most readily available noninvasive test by which, in addition of diagnosis, localizing and estimating the size of myocardial ischemia can be determined. Abnormally high QT dispersion has been correlated with risk of arrhythmic death in various cardiac diseases including CAD. An increase in QTd is reported to predict the occurrence of life-threatening ventricular tachyarrhythmias and sudden cardiac death in patients with ischemic heart disease.
Materials and Methods: This Cross sectional analytical study was conducted in Department of Cardiology, National Institute of Cardiovascular Diseases, Dhaka from January 2013 to December 2013. A total of 100 consecutive patients with angina based on predefined enrollment criteria were included in the study. .All patients were evaluated by history, clinical examination, biochemical analysis, and coronary angiogram (CAG) which was performed during index hospital admission. PCI was done only if the vessel was significantly stenosed.i,e. for LMCA - e”50%, for LAD, LCX and RCA it was e”70% as significant stenosis. Severity of stenosis of the involved vessels were categorized as severe( e”90%) and moderate(<90%).
Results: Among the study population 76 (76%) patients were male and 24 (24%) patients were female. The left anterior descending artery (LAD) group comprised 37 patients and there were significant differences between before and after PCI QTc dispersion (90.5±38.9 vs 70.4±39.6 ms, p=0.001). The left circumflex artery (LCX) group was comprised of 6 patients and there were significant differences between before and after PCI QTc dispersion (62.2±41.9 vs 50.2±37.2 ms, p=0.001). The right coronary artery (RCA) group consisted of 18 patients, there being significant differences between before and after PCI QTc dispersion (84.9±40.7 vs 69.1±41.5 ms, p=0.001)
Conclusion: PCI reduces QTc dispersion significantly among patients with angina. This QTc dispersion change is not influenced by sex, smoking, beta-blockers, hypertension, diabetes, renal impairment, stable or unstable angina but it depends upon the severity of coronary artery stenosis, involvement of coronary vessel and number of vessels.Reduction of QTc dispersion is a good sign of successful PCI that indicates successful reperfusion which carries an excellent prognostic value of revascularization.Further long term follow up will establish it.
University Heart Journal Vol. 16, No. 1, Jan 2020; 33-39
Echocardiographic Imaging of Intracardiac Thrombus and Evaluated its Underlying cause along Therapeutic Implications: A Review
Authors: Haque Mostashirul , Kabir Mohammad Faisal Ibn , Amin Md Rasul , Khaled Md Fakhrul Islam , Mandal Rayhan Masum , Zaman S M Mustafa , Hoque Harisul , Rahman Fazlur , Ahmed Choudhury Meshkat 
Published: January 2020

Abstract not available
University Heart Journal Vol. 16, No. 1, Jan 2020; 40-42
POTENSI EKSTRAK DAUN KARUK (Piper sarmentosum) SEBAGAI INSEKTISIDA NABATI HAMA ULAT GRAYAK (Spodoptera litura)
Authors: S. P Rangga Eka , . Moerfiah , . Triastinurmiatiningsih 
Published: January 2020

The purpose of this study was to determine the activity of the leaf extract of Piper sarmentosum on mortality and damage levels by pest armyworm (Spodoptera litura). This research was conducted at the Laboratory of Biology, Faculty of Mathematics and Natural Sciences, Pakuan University, Bogor. This study uses a completely randomized design (CRD), with four levels of extract concentration, that is 0% as control, 30%, 40% and 50%. Each treatment was repeated four times. The variables measured were mortality rates, the extent of damage the leaves, and larval growth. A concentration of EDK 50% showed activity in killing the armyworm by 38%. The lowest level of damage is 5%, with an average growth rate to its lowest larvae by 0.8 cm with the provision of treatment EDK 50%, and the higest level of damage is 75% by a concetration of EDK 30% treatments.
EFEKTIVITAS STIMULANSIA KOMBINASI SARI UMBI BIT DAN BUAH APEL TERHADAP KETAHANAN FISIK DAN KADAR Hb TIKUS PUTIH Sprague Dawley
Authors: . Moerfiah , . Yulianita , Setiawan Deni 
Published: January 2020

Human physical exercise is influenced by hemoglobin levels in the blood, stimulant testing of underlying fatigue should be tested for Hb levels. This study aims to determine the increase in stimulation and hemoglobin levels of white rats using beetroot and apple juice. The method used for stimulant testing was the endurance test using a rotarod and for measuring Hb levels using the sahli method with a hemometer. The data observed were the duration of resistance on rotarod stick which were rotated, the experimental animals used were 25 animals divided into 5 treatment groups with each group of 5 rats namely: group of beetroot and apple (1: 1) (2.8g: 0.63mg / 200gBB), comparison (2: 1) of (5.6g: 0.63mg / 200gBB), comparison (1: 2) of (2.8g: 1.26mg / 200gBB), negative control (-) (CMC-Na 0.5%) and positive control (+) caffeine 20 mg / 200g BB. Dosage treatment is carried out in one day.The results showed that the combination of beetroot and apple juice had an increase in stimulant and hemoglobin levels of white rats with the most effective dose for stimulant enhancement and Hb levels were found in the second dose compared to beetroot and apple juice (2: 1) 5.6 g / 200gBB: 0.63 g / 200gBB.