bluuebunny/crossref_metadata_2025 huggingface dataset:
Short-term flood forecasting with an amended semi-parametric regression ensemble model
Authors: Le Tuan Hoang , To Dung Anh
Published: September 2018

Flood forecasting is very important research topic in disaster prevention and reduction. The characteristics of flood involve a rather complex systematic dynamic under the influence of different meteorological factors including linear and non-linear patterns. Recently there are many novel forecasting methods of improving the forecasting accuracy. This paper explores the potential and effect of the semiparametric regression to modelize flood water-level and to forecast the inundation of Mekong Delta in Vietnam. The semi-parametric regression technique is a combination of a parametric regression approach and a non-parametric regression concept. In the process of model building, three altered linear regression models are applied for the parametric component. They are stepwise multiple linear regression, partial least squares solution and multirecursive regression method. They are used to capture flood’s linear characteristics. The nonparametric part is solved by a modified estimation of a smooth function. Furthermore, some justified nonlinear regression models based on artificial neural network are also able to obtain flood’s non-linear characteristics. They help us to smooth the model's non-parametric constituent easily and quickly. The last element is the model's error. Then the semiparametric regression is used for ensemble model based on the principle component analysis technique. Flood water-level forecasting, with a lead time of one and more days, has been made by using a selected sequence of past water-level values and some relevant factors observed at a specific location. Time-series analytical method is utilized to build the model. Obtained empirical results indicate that the prediction by using the amended semi-parametric regression ensemble model is generally better than those obtained by using the other models presented in this study in terms of the same evaluation measurements. Our findings reveal that the estimation power of the modern statistical model is reliable and auspicious. The proposed model here can be used as a promising alternative forecasting tool for flood to achieve better forecasting accuracy and to optimize prediction quality further.
The GAP function of a parametric mixed strong vector quasivariational inequality problem
Authors: Le Dai Xuan , Nguyen Hung Van , Phan Kieu Thanh
Published: September 2018

The parametric mixed strong vector quasivariational inequality problem contains many problems such as, variational inequality problems, fixed point problems, coincidence point problems, complementary problems etc. There are many authors who have been studied the gap functions for vector variational inequality problem. This problem plays an important role in many fields of applied mathematics, especially theory of optimization. In this paper, we study a parametric gap function without the help of the nonlinear scalarization function for a parametric mixed strong vector quasivariational inequality problem (in short, (SQVIP)) in Hausdorff topological vector spaces. (SQVIP) Find

x ̅ ∈ K(x ̅ ,γ) and z ̅ ∈ T(x ̅ ,γ) such that

< z ̅ , y-x ̅  >+ f(y, x ̅ ,γ) ∈ Rn+ ∀ y ∈ K(x ̅ ,γ),

where we denote the nonnegative of Rn by

Rn+= {t=(t1 ,t2,…,tn )T ∈ Rn |ti >0, i = 1,2, ...,n}.

Moreover, we also discuss the lower semicontinuity, upper semicontinuity and the continuity for the parametric gap function for this problem. To the best of our knowledge, until now there have not been any paper devoted to the lower semicontinuity, continuity of the gap function without the help of the nonlinear scalarization function for a parametric mixed strong vector quasivariational inequality problem in Hausdorff topological vector spaces. Hence the results presented in this paper (Theorem 1.3 and Theorem 1.4) are new and different in comparison with some main results in the literature.
Extraction, isolation and characterization of depsidones from Usnea baileyi (Stirt.) Zahlbr collected from tree barks in Tam Bo Mountain of Di Linh, Lam Dong Province, Viet Nam
Authors: Nguyen Kieu Van , Duong Huy Thuc
Published: September 2018

Chemical data on the lichen Usnea baileyi are scarce. The current investigation reports the extraction, isolation and characterization of depsidones from this lichen collected in Lam Dong Province. Eight depsidones were isolated and elucidated, including methylstictic acid (1), stictic acid (2), cryptostictic acid (3), 8’-O-methylmenegazziaic acid (4), menegazziaic acid (5), 8’- O-methylconstictic acid (6), constictic acid (7), and hypoconstictic acid (8). Multi chromatographic methods comprising normal phase silica gel column chromatography and thin layer chromatography were applied to the crude acetone extract to isolate and purify compounds 1-8. Their chemical structures were elucidated by spectroscopic analysis as well as comparing their data with ones in the literature.
A new era for the Science and Technology Development Journal
Authors: Pham Phuc Van
Published: September 2018

The Science and Technology Development Journal (STDJ) is the official scientific publication of the Viet Nam National University Ho Chi Minh City, Viet Nam (VNUHCM). The STDJ was firstly published in 1998 to aim push the publication activities of students, researchers, and scientists of VNUHCM. Since then, STDJ has become the most important scientific forum of scientists from VNU-HCM as well as other universities. The journal has undergone 20 years of development and has become a bridge for scientific exchanges, as well as enriching reference materials for the faculty, doctoral students, students of VNU-HCM in particular and other universities, institutes... By the end of 2017, the journal has published 296 issues with about 3000 articles in five areas of research: Engineering and Technology, Natural Sciences, Social Sciences and Humanities, Economics of Law and Management Sciences, Earth Sciences and Environment.
Determination of cysteamine in animal feeds by high performance liquid chromatography with diode-array detection (HPLC-DAD)
Authors: Nguyen Phu Hoang
Published: September 2018

A HPLC-DAD method for the determination of cysteamine supplementation in commercial animal feeds was developed. Samples were extracted with a mixture of 0.5 % hydrochloric acid – acetonitrile (90:10, v/v), matrix interferences were removed with a C18 cartridge, cysteamine was derivatized using 5,5'-dithiobis-(2-nitrobenzoic) acid (DTNB) as Ellman's reagent targeting to the thiol group in the molecule. Quantification of cysteamine was performed on a c18 column with DAD at 323 nm. The developed method had LOD of 1.1 mg/l, good linearity of the calibration curve (R2 ≥ 0.9998), high recoveries (> 92 %), and high reproducibility (RSD < 2.0%).
Effects of brand values on customer loyalty intention: The mediating role of trust, attachment and consumer - brand identification
Authors: Vo Thuy Thi Ngoc
Published: September 2018

Customers and brands usually find a connection to one another through brand values, namely the functional, emotional, experiential, and symbolic values. This connection plays a considerable role in creating loyalty intention. However, studies on the mechanism of this relationship remain limited. This study proposes that perceived functional values lead to customers' loyalty to the brand as they create trust; the emotional and experiential values result in loyalty intention as they link customers to brand attachment; and the symbolic values lead to loyalty as they create consumer-brand identification. We conducted an empirical study using quantitative method on a sample of 311 customers in three different functional food brands. The results show that trust and attachment accordingly play partial mediating roles, and attachment plays a full mediating role.
Employment and income of workers in foreign direct investment enterprises in Ho Chi Minh City
Authors: Pham Ly Thi
Published: September 2018

This paper finds that foreign direct investment enterprises (FDIE) contributes the greatest share to GRDP and creates more employment compared with other sectors in HCMC. FDIE also have a higher capital deficit than domestic enterprises, therefore the average income of workers in this sector is significantly higher than that of state-owned and private ones. Within FDIE in HCMC, average income of workers in enterprises with import-export activities was lower than in those without import-export activities in 2011 – 2013. However, the gap was gradually shortened and the opposite is true since 2014. This change is the result of the shift in export commodity structure and from labor-intensive industries to technology- and high skillintensive industries, thereby enhancing the worker income. From the analysis, the paper offers some policy suggestions for the HCMC government in order to boost foreign direct investment attraction in capital- and technology-intensive industries which helps to create more employment of high productivity and increase worker income.
Issues in developing model of economic zones in Vietnam
Authors: Nguyen Tuan Anh , Nguyen Dung Tien
Published: September 2018

Economic zone is a special model which plays an important role in the growth and development of a nation. The history of economic zones dates back from the early of 18th century under the form of autonomous regions or free trade areas. After many periods, economic zone has experienced different forms. The paper mainly uses synthesis and comparison methods to show the trend in establishing and developing economic zones in Vietnam. A comparison with the world’s experience is also conducted. The author finds that the model of economic zones in Vietnam has similarities and differences with that of the world and entails shortcoming. Vietnam’s model relies on attracting low-cost labor, available materials and preferential polices. To catch up with the current trend in the world, it is necessary to build a regime or policy which is appealing enough to attract investment capital, high-quality human resource so as to create a gateway for knowledge, science and technology. This is to turn economic zones into a booster for the economic development of the region and the nation.
New measures to secure the performance of civil obligations in Vietnam’s civil code 2015
Authors: Doan Diep Thi Phuong , Hoang Ngu Thi
Published: September 2018

Measures to secure the performance of civil obligations have been used relatively long in practice but mainly applied in the fields of credit and banking. At present, there exist two parallel regulation systems: the general regulation system of secured transactions applied to all civil transactions and the system of security measures by credit institutions. The former serves as framework on which the latter was developed to be in line of this industry’s nature. This paper presents two new security measures which are supplemented in the list of security measures stipulated in the civil code of Vietnam 2015 with drastic changes in the establishment and effect of the established transactions.
State - owned commercial banks and the implementation of Scheme for Restructuring the System of Credit Institutions in the Period of 2011 - 2015
Authors: Nguyen Hien Thi Diem , Nguyen Hang Thi Hai
Published: September 2018

Since the reforms under Doi Moi policy, Vietnam’s commercial bank system had experienced significant changes and obtained stimulating results, such as: ownership diversification, growth in asset and equity, increased number of banks and banking services etc. However, after the 2008 global crisis, the Vietnam’s commercial bank system has revealed its shortcomings (e.g. high rate of NPLs, low liquidity, low human resource quality). In response to the bad performance of some commercial banks that can result in the breakdown of the whole system, the Government has applied decisive actions to restructure the credit institutions in general and commercial banks in particular. This paper aims to review the performance of stateowned commercial banks from 2011 to 2015 to reassess results of the implementation of Scheme for restructuring the system of credit institutions in the period of 2011 – 2015 by the Prime Minister.
The basis for merger remedies and suggestions for Vietnam
Authors: Truong Hieu Trong
Published: September 2018

From the analysis of the theories and the necessity of using merger remedies, the paper provides some policy recommendations for merger control in Vietnam. Based on the current practice of merger regulation, the paper suggests that Vietnam should separate the conditions for notification process and the ground for final conclusion. Particularly, in order to achieve the goals of merger control, Vietnam should prioritize the behavior remedies while calling for all types of merger measures. However, all effort becomes meaningless if the Vietnam’s competition management authority lacks legal power and transparency.
Finance for green economic growth in Vietnam - Policy, legal frameworks and enforcement
Authors: Vien Giang The
Published: September 2018

Green economic growth is an inevitable trend and requires a rich and diversified source of capital. Instead of government finance which take the forms of promoting and preferential policies in the beginning phase, green credit products (e.g. capital provided by credit institutions) plays an important role in the in-depth development phase of green economic growth. This studies suggests that the finance for green economic growth depends on the current policy and legal frameworks, thereby evaluating the current situation of regulations, practical enforcement and remedy for shortcomings and limitations in the enforcement of policies and law on finance for green economic growth in Vietnam.
Strategic Measures for the Marine Economic Development of Kien Giang Province
Authors: Nguyen Binh Dinh
Published: September 2018

This paper analyzes the current situation of Kien Giang’s marine economic development in the process of international integration. Based on the analysis, the authors propose some strategic measures for implementing the goals of marine economic development and enriched income from harvesting the sea, which are: optimizing marine industry structure; strengthening the exploration of and forecast about ocean resources; promoting a comprehensive management of marine economy; and increasing the investment in marine infrastructure and marine environmental protection. From the analyzes and explanations about the Kien Giang’s marine economic development, the author has proposed suitable solutions to contribute to the fast and sustainable development of the marine economy in Kien Giang.
The satisfaction of Vietnamese and European customers with service quality of high-end restaurants
Authors: Vo Thuy Thi Ngoc
Published: September 2018

This study applied the DINERSERV scale to measure the effect of service quality on customer satisfaction about high-end restaurants. Moreover, this research also examined the impact of the difference between Eastern and Western cultures on the relationship between service quality and customer satisfaction. The research was carried out on a survey of 117 Vietnamese customers and 126 European customers in five high-end restaurants in Da Lat city. The outcome indicated that the service quality has a strong influence on the satisfaction of both Vietnamese and European customers. An interesting result is while to Vietnamese customers, fast and in-time services is very important, to European customers, it is not. The restaurant ambience is what European customers care about. This result not only broadens the theory of service quality but also suggests some practical implications for multicultural customer management in the integration period.
Designing key performance indicators for higher education programs in engineering and technology
Authors: Le Lam Ngoc Quynh , Vu Dung The , Do Hien Ngoc , Lam Thoai Tuong , Vuu Trang Thi Thuy , Dinh Anh Ngoc
Published: September 2018

Higher education plays a crucial role in the economic and social development. In order to fulfill its role, mission, and vision, as well as enhance competitive advantages in the global integration context, universities have to put quality as the top priority. Recently, many universities nationwide have been developing quality assurance system, conducting self assessment, and pursuing accreditation in both program and institutional levels. This process aims at developing suitable action plan for quality improvement based on determined strengths and weaknesses. However, this process requires a huge effort to collect and analyze data. In order to enhance the effectiveness and efficiency, the key performance indicators (KPIs) are proposed to evaluate the quality of higher education programs in many aspects. Those KPIs can be considered as a set of statistical measures of how higher education programs are performing. This paper, therefore, provides some general definitions and proposes some KPIs in order to measure the quality of higher education programs in engineering and technology. However, findings of this study can be used as references for other programs.
Recognition and Enforcement of a Foreign Arbitral Award exceeding limitation time: The Case of Seetransport Wiking versus Navimpex Centrala
Authors: Le Thien Nguyen Gia
Published: September 2018

In most cases, an arbitral award rendered by a competent arbitration tribunal will be voluntarily performed by the parties to the dispute. Notwithstanding, if the debtor fails to fulfil his obligations mentioned in the award, the creditor has a right of action to bring this certain award before a foreign court in order to file a petition for the recognition and enforcement. The foreign court, after examining the award and attached evidences, can recognize and enforce the mentioned award provided that it does not exceed the limitation time described in the current applicable law of the enforcing country. Nonetheless, pursuant to United States’ laws, the creditor has an additional right of action, namely the right to petition for a "double exequatur". In the nature of the "double exequatur", the creditor will first request the court residing at the arbitral locality to recognize the effectiveness of the arbitral award. He will then bring the decision of this court before a respective court of another country in order to seek an exequatur. The case of See transport versus Navimpex, admired as a distinguished feature of the "double exequatur", has been the eminent and typical example of the United States' jurisdiction in this field.
Service quality and social influence on e–payment adoption
Authors: Nguyen Thanh Duy , Huynh Phuc Anh
Published: September 2018

E–payment is an important component of e–commerce, it helps improving service quality and increasing user satisfaction of the e–commerce in the digital era. This study proposes and tests a model of e–payment adoption. Data is collected from e–commerce customers who have used or intend to use e–payment systems in Ho Chi Minh city. A survey study with the SEM analysis of 200 participants, six out of nine hypotheses are supported. Research results demonstrate that there are linear relationships between service quality, social influence, easy to use, and e–payment adoption. The research model illuminates roughly 51% of the e–payment adoption.
The spillover effect of non - profit universities: Some policy implications of private higher education in Vietnam
Authors: Duong Hoa Quang , Pham Anh Ngoc , Lam Dung Quoc , Nguyen Hoang Minh Cao , Do Khang Ba
Published: September 2018

Extending Cooper & Ross’ analysis of competition in markets with informational asymmetry, and Hirth’s researches on non-profit nursing homes in the United States, this paper developed a competitive model for a mixed market of for-profit and non-profit private universities. The model proved the spillover impact of non-profit universities on the overall quality of the market. As a result, the paper sheds some insights on the quality problems faced by private universities in Vietnam, and also offers some policy implications to improve the overall quality of this market.
Development Tan Thuan Export Processing Zone in the model green industrial park - solutions and roadmap
Authors: Tran Dieu Thi My , Le Oanh Thi Kim , Tran Hong Thanh
Published: September 2018

The study was carried out to set up the evaluation criteria that is satisfactory the level of a green industrial park. A set of criteria consists of 2 parts: screening and evaluation criteria, to evaluate the 2 objects: Investment company IZ infrastructure & factories within the industrial zone. Researchers have applied this set of criteria to evaluate the Tan Thuan Export Processing Zone, HCMC. From the results of the evaluation by the criteria, researchers have proposed 6 solutions and roadmap for implementation of solutions to meet the requirements of a green industrial park.
Application of pilot scale trickling filter couple with pre-ozonation for ammonia, iron and dissolved organic carbon removals from Saigon river water
Authors: Le Ngan Ngoc Kim , Nguyen Dan Phuoc
Published: September 2018

A pilot scale trickling filter and pre-ozonation contactor with capacity of about 20 m3/day was run at Hoa Phu Pump Station which takes raw water from Saigon River for drinking water supply for Ho Chi Minh City. The raw water contains 0.52 ± 0.19 mg NH4+-N/l, 0.14 ± 0,06 mg/l total iron and 3.14 ± 0.45 mg/l DOC. The study aimed to using the pilot scale experiment to assess ammonia, iron and dissolved organic carbon (DOC) removals from Saigon Water River for the sake of reducing chlorine demand and thus mitigating risk from Disinfection By Products (DBPs) formation. The size of the trickling filter was 0.5 m long x 0.5 wide x 2m high. The bio-media was seven PE wool sheets with thickness of 30 mm that is widely used as filter cloth in aquariums. It run at hydraulic loading of 3 m3/m2.h of raw water, and 8 m3/m2.h, where 50% of total flow was the returned effluent of pre-ozonation. The pilot scale pre-ozonation contactor which has the size of 0.6 m long x 0.6 m wide x 2.0 m high was operated at contact time of 15 minutes and ozone concentration of 0.5 mg/l. The ammonia, iron and DOC removals at 8 m3/m2.h were 58%, 25% and 22%, respectively. Whereas, it obtained ammonia, iron and DOC removals of 52%, 19% and 9% DOC respectively. Thus, even though the experiment with returned pre-ozonation effluent run at high hydraulic loading rate, the better performance was obtained as comparison to the experiment without return.
Validation of a Generally Applicable Method for the Characterization of Scoliotic Deformities and Sagittal Spinal Curvatures
Authors: Jáger Bence , Jáger Dávid , Kristóf Tamás , Takács Mária , Tamás Péter , Kiss Rita M.
Published: September 2018

The oldest and most precise way to determine the curvatures of the spine is two directional X-ray measurement from the sagittal and coronal planes. By using X-ray, patients are exposed to radiation, which limits the repeatability of the measurements even in serious deformities, thus X-ray is not applicable for frequent monitoring. Therefore new alternative non-invasive radiation-free measurement systems appeared, which measure the external shape of the spine on the back surface. The goal of the present study is to validate the new tangential calculation method by Cobb method based radiographic analysis and by two other alternative calculation methods. In the study 22 young patients suffering from scoliotic deformities are examined. Thoracic kyphosis, lumbar lordosis and scoliotic deformity, as the three characterizing angles of spinal curvatures, are calculated by four different methods. The results show that the newly developed tangent line method could be applicable for the evaluation of spinal curvatures.
Diversity of Cropping Patterns and Land Use Practices in Faridpur Region
Authors: Mostafizur ABM , Zaman MAU , Shahidullah M , Nasim M
Published: September 2018

The development of agriculture sector largely depends on the reliable and comprehensive statistics of the existing cropping patterns, cropping intensity and crop diversity of a particular area, which will provide guideline to policy makers, researchers, extensionists and development workers. The study was conducted over all 29 upazilas of Faridpur region during 2015-16 using pre-tested semi-structured questionnaire with a view to document the existing cropping patterns, cropping intensity and crop diversity of this area. From the present study it was observed that about 43.23% net cropped area (NCA) was covered by only jute based cropping patterns on the other hand deep water ecosystem occupied about 36.72% of the regional NCA. The most dominant cropping pattern Boro−Fallow− Fallow occupied about 24.40% of NCA with its distribution over 28 out of 29. The second largest area, 6.94% of NCA, was covered by Boro-B. Aman cropping pattern, which was spread out over 23 upazilas. In total 141 cropping patterns were identified under this investigation. The highest number of cropping patterns was identified 44 in Faridpur sadar and the lowest was 12 in Kashiani of Gopalganj and Pangsa of Rajbari. The lowest crop diversity index (CDI) was reported 0.448 in Kotalipara followed by 0.606 in Tungipara of Gopalganj. The highest value of CDI was observed 0.981 in Faridpur sadar followed by 0.977 in Madhukhali of Faridpur. The range of cropping intensity value was recorded 113- 262%. The maximum value was for Saltha of Faridpur and minimum for Kotalipara of Gopalganj. As a whole the CDI of Faridpur region was calculated 0.971 and the average cropping intensity at regional level was 197%.Bangladesh Rice j. 2017, 21(2): 157-172
Diversity of Crops and Cropping Systems in Jessore Region
Authors: Dewan MMR , Rashid M Harun Ar , Nasim M , Shahidullah SM
Published: September 2018

Thorough understanding and a reliable database on existing cropping patterns, cropping intensity and crop diversity of a particular area are needed for guiding policy makers, researchers, extensionists and development workers for the planning of future research and development. During 2016 a study was accomplished over all 34 upazilas of Jessore region using pre-tested semi-structured questionnaire with a view to document the existing cropping patterns, cropping intensity and crop diversity in the region. The most dominant cropping pattern Boro−Fallow−T. Aman occupied 32.28% of net cropped area (NCA) of the region with its distribution in all upazilas. The second largest area, 5.29% of NCA, was covered by single Boro, which was spread over 24 upazilas. A total of 176 cropping patterns were identified in the whole region under the current investigation. The highest number of cropping patterns was identified 58 in Kushtia sadar upazila and the lowest was 11 in Damurhuda upazila of Chuadanga district. The lowest crop diversity index (CDI) was reported 0.852 in Narail sadar upazila followed by 0.863 in Jessore sadar upazila. The highest value of CDI was observed 0.981 in Daulatpur followed by 0.978 in Bheramara upazila of Kushtia district. The range of cropping intensity values was recorded 175−286%. The maximum value was for Sreepur of Magura district and minimum for Abhaynagar of Jessore district. As a whole the CDI of Jessore region was calculated 0.955 and the average cropping intensity at regional level was 229%.Bangladesh Rice j. 2017, 21(2): 185-202
Cropping Systems and their Diversity in Khulna Region
Authors: Rashid M Harunur , Shirazy BJ , Ibrahim M , Shahidullah SM
Published: September 2018

This study includes the existing cropping pattern, cropping intensity and crop diversity of Khulna region. A pre-designed and pre-tested semi-structured questionnaire was used to collect the information and validated through organizing workshop. Single T. Aman cropping pattern was the most dominant cropping pattern in Khulna region existed in 17 out of 25 upazilas. Boro-Fallow-T. Aman cropping pattern ranked the second position distributed almost in all upazilas. Boro-Fish was the third cropping pattern in the region distributed to 17 upazilas with the major share in Chitalmari, Dumuria, Rupsha, Tala, Kalaroa, Mollahat, Terokhada, Bagerhat sadar, Fakirhat, Rampal and Phultala upazilas. Single Boro rice was recorded as the fourth cropping pattern covered 18 upazilas with the higher share in waterlogged area of Dumuria, Mollahat, Tala, Bagerhat sadar, Fakirhat and Rampal. The highest number of cropping patterns was recorded in Kalaroa (26) followed by Tala (24) and the lowest was reported in Mongla (5). The overall crop diversity index (CDI) for the region was 0.93. The highest CDI was in Tala (0.95) and the lowest in Dacope (0.42). The average cropping intensity (CI) of the Khulna region was 171% with the lowest in Mongla (101%) and the highest in Kalaroa (224%).Bangladesh Rice j. 2017, 21(2): 203-215
Cropping Patterns in Mymensingh Region: Diversity, Constraint and Potential
Authors: Khatun A , Parvin N , Dewan MMR , Saha A
Published: September 2018

A consistent and comprehensive database on cropping pattern, cropping intensity and crop diversity of a particular area is the prime importance for guiding policy makers, researchers, extentionists and development agencies for the future research and development planning. The study was carried out all the upazilas of Mymensingh region during 2015-16 using pre-designed and pre-tested semistructured questionnaire with a view to document the existing cropping pattern, crop diversity and cropping intensity. The most dominant cropping pattern Boro−Fallow−T. Aman occupied about onehalf of net cropped area (NCA) of the region distributed to 46 out of 47 upazilas. Single Boro cropping pattern ranked the second position which covered 23% of NCA distributed in 45 upazilas. A total of 129 cropping patterns were identified in the whole area of Mymensingh region under this investigation. The highest number of (30) cropping patterns were identified in Pakundia upazila of Kishoreganj and the lowest was (10) in Sreebardi of Sherpur. The lowest crop diversity index (CDI) was reported (0.111) in Mithamoin of Kishoreganj followed by 0.114 at Khaliajuri in Netrokona. The highest value of CDI was observed 0.933 at Dewanganj in Jamalpur followed by 0.920 at Bhairab in Kishoreganj. The range of cropping intensity values was recorded 101-249%. The maximum value was for Hossainpur and minimum for Itna and Mithamoin in Kishoreganj. At a glance the calculated CDI of Mymensingh region was 0.840 and the average cropping intensity was 187%.Bangladesh Rice j. 2017, 21(2): 217-235
Safety and Efficacy of Trans-Ulnar Coronary Intervention
Authors: Islam AHM Waliul , Bhuiyan Azfar H , Munwar Shams , Islam Nighat , Siddique Atique Bin , Yousuf Intekhab , Ahmed Tamzeed , Talukder Sahabuddin , Reza AQM , Alam MS
Published: September 2018

Background: Primary aim of our study to evaluate the safety and feasibility of percutaneous Trans- Ulnar approach for coronary angiogram and intervention.Methods: Patient whom radial pulse was very feeble and difficult to cannulate and having very good volume Ulnar pulse were selected in this study. Total 48(Male 37: Female 11) patients were enrolled in this very preliminary study who underwent elective coronary angiogram (CAG) and subsequent adhoc percutaneous coronary intervention (PCI) in same sitting. Total 11 stents were deployed in 10 territories. Mean ages of male and female were 59 and 52 years respectively. Associated coronary artery artery disease (CAD) risk factors were dyslipidemia, high blood pressure, diabetes mellitus, positive family history of CAD and smoking (all male).Results: Among the study group; 36(75%) were Dyslipidemic, 35(73%) were hypertensive; 34(70.1%) patients were Diabetic, FH 11(23%), and 12(25%) were all male smoker.PCI performed in 9 patients i.e., 18.8% of the total population of this study. Angiographic diagnosis of TVD 8(16.6%), DVD 6(25%), SVD 17 (35.4%), Normal Coronaries 8(16.6%), ISR or patent stent 5(10.4%), Severe Calcified disease 4(12%). Common stented territory was LAD 6(66%), LCX 2(22%) and RCA 2 (22%). Vaso-spasm was not noted as it is quite often in trans-radial approach. Procedural complication like hematoma was not present.Conclusion: We conclude that trans-ulnar approach is a safe, feasible and effective alternative to Transfemoral and Trans-radial approach, specially due to sluggish flow or feeble radial pulsation with severe spasm of radial artery for coronary angiogram and subsequent PCI.Cardiovasc. j. 2018; 11(1): 5-9
Administration of Magnesium and its Association with Prevention of Ventricular Arrhythmias Following Cardiopulmonary Bypass in Open Heart Surgery
Authors: Karim Md Rezaul , Ahmed Tawfiq , Biswas Bidyut Kumar , Moinuddin Shahriar , Hasan Md Kamrul , Adhikary Asit Baran
Published: September 2018

Background: The development of cardiac arrhythmias following open- heart surgery is fairly common. Hypomagnesemia appear to be a significant element in the genesis of postoperative ventricular arrhythmias. Purpose of this study is to evaluate the effects of postoperative use of magnesium following cardiopulmonary bypass and minimize the risk of dreadful ventricular arrhythmia.Methods: Total 80 (Eighty) patients were enrolled for this study divided in 2 groups, Group A (n=40): patients who were given Magnesium Sulphate and Group B (n=40): patients who were not given Magnesium. Monitoring of the patient in ICU was done for incidence of ventricular arrhythmias.Results: From this study the incidence of postoperative ventricular arrhythmia was less in the magnesium treated group than the control group. Mean serum magnesium concentration decreased to subnormal value, immediately after surgery in both magnesium-treated and untreated groups.Conclusions: Routine intravenous magnesium administration can reduce the incidence of ventricular arrhythmias after cardiac surgery following cardiopulmonary bypass.Cardiovasc. j. 2018; 11(1): 23-30
Terminal QRS Distortion on Admission Electrocardiogram as a Predictor of Left Ventricular Systolic Dysfunction in Patients with ST Elevation Myocardial Infarction
Authors: Ahsan Mohammad Morshedul , Akanda Md Abdul Kader , Hashem Sabina , Rahman Md Zillur , Siddiqui Mohammad Khalilur Rahman , Sultana Surovi , Reza Abeeda Tasmin , Datta Ratan Kumar , Mahmood Khaled , Karmaker Pranob
Published: September 2018

Background: Increased mortality rates due to coronary artery disease remains a big concern inthe field of cardiology. So early risk stratification is important in daily clinical practice. Risk assessment needs to be done shortly after admission, when only the history, physical examination and the ECG are available. The role of ECG in diagnosis and prognostication of acute myocardial infarction is well established. So this study was done to find out the association of terminal QRS distortion with left ventricular systolic dysfunction in patients with acute ST Elevation Myocardial Infarction.Methods: This prospective observational study was done in NICVD with acute STEMI patients who were eligible for thrombolysis, and was admitted in coronary care unit within 12 hours of onset of chest pain. After considering inclusion and exclusion criteria total 200 acute STEMI patients were taken purposively. 100 patients in group I with terminal QRS distortion and 100 patients in group II without terminal QRS distortion. Then Echocardiography was done to assess left ventricular systolic dysfunction.Results: In our study mean ejection fraction was significantly lower in group I (42.6 ± 5.4% vs 49.7 ± 5.3%, p=0.001).Mean ejection fraction was 40.4± 4.7% in terminal QRS distortion patients with anterior MI and 47.9± 5.9% in patients without terminal QRS distortion with anterior MI (p=0.001).Mean ejection fraction was 46.6± 6.4% in terminal QRS distortion patients with inferior MI and 53.9± 7.8% in patients without terminal QRS distortion patients with inferior MI (p=0.003).Out of the 7 variables location of MI and terminal QRS distortion were found to be the independent predictors for developing left ventricular systolic dysfunction with ORs being 5.20 and 3.21.respectively.Conclusion: ECG on admission in STEMI can predict short term prognosis and help in early assessment of severity of ischemia. Presence of terminal QRS distortion on admission ECG in STEMI is associated with LV systolic dysfunction. So it helps in early decision making for referral to a higher center by our grass root level doctors.Cardiovasc. j. 2018; 11(1): 42-49
Association of C- Reactive Protein and HbA1c in the Severity of Coronary Artery Disease in Patients with Ischemic Heart Disease
Authors: Ahmed Mohsin , Islam Md Mesbahul , Rahman Mohammad Arifur , Rubaiyat Khandaker Abu , Khuda CM Khudrate E , Ferdous Kazi Abul Fazal , Das Bikash Chandra , Hasan Mahmudul , Majumder Mizanur Rahman
Published: September 2018

Background: C-reactive protein (CRP) and glycohemoglobin (HbA1c) are established risk factors for the development of cardiovascular disease. We investigated the joint effects of these parameters on the severity of coronary artery disease (CAD) in patients with ischemic heart disease.Methods: This cross sectional study was performed on 668 patients of ischemic heart disease. CRP value were divided into normal (<6 mg/L), borderline (6-10 mg/L) and high (>10 mg/L) and HbA1c was divided <6.5% and ≥ 6.5%. After performing Coronary angiography the extent of disease was divided into insignificant CAD of (<50% stenosis), significant CAD considered as >50% stenosis and single vessel, double vessel, triple vessel CAD and normal coronaries.Results: Most (65.0%) of the patients belonged to age 41-60 years. The mean age was found 51.4±10.7 years. Majority (82.3%) of patients were male. Among risk factors, highest (40.0%) patients had hypertension followed by 209 (31.3%) diabetes mellitus and 204 (30.5%) smoker. The relationship of CRP with the whole spectrum of ischemic heart disease was found statistically significant (p<0.05). The relationship of HbA1c and CRP were significantly associated with the severity of coronary artery disease. At HbA1c e”6.5 percent, severe CAD (double vessel and triple vessel) were found higher in high CRP than normal and borderline CRP group.Conclusion: Inflammation, presented by CRP, and hyperglycemia, presented by HbA1c, jointly contributes to the cardiovascular risk of patients. Patients with high CRP and elevated HbA1c are associated with severe coronary artery diseases.Cardiovasc. j. 2018; 11(1): 53-58
A Study on Highly Sensitive C-Reactive Protein (Hs-CRP) in Patients with Bronchial Asthma
Authors: Rashid Md Haroon Ur , Chowdhury Md Rezaul Karim , Huq Md Ehsanul , Rahman Shamimur , Mondal Nelson Taposh
Published: September 2018

Background: Asthma is a chronic inflammatory disorder of the airways. Relevance of highly sensitive C-reactive protein (hs-CRP), an acute phase reactant and a sensitive marker of low-grade systemic inflammation in bronchial asthma has not been fully studied.Objectives: Reported studies have found an inverse relationship between lung function and markers of systemic inflammation. The aim of this study was to clarify the relationship between serum level of hs-CRP and bronchial asthma.Materials and method: In this study, hs-CRP was measured in 60 patients with asthma and 40 healthy control subjects. Of all asthmatics, 39 patients had partially controlled and uncontrolled asthma and 21 patients had asthma during exacerbation.Results: Highly sensitive CRP was significantly higher (p<0.000) in asthmatic patients as compared to the control group. In asthmatics with exacerbation, serum hs-CRP was significantly higher than in partially controlled and uncontrolled asthmatic patients (p<0.006) and control subjects (p<0.0001).Conclusion: Serum hs-CRP may be a non specific marker of asthma and its exacerbation.Delta Med Col J. Jan 2018 6(2): 62-67
Betamethasone Gel versus Intravenous Dexamethasone as Prophylaxis against Postoperative Sore Throat
Authors: Hossain Muhammad Sazzad , Rashid Mamunur , Babu Anisur Rahman , Saha Devashis , Banik Debasish
Published: September 2018

Background: Postoperative sore throat (POST) though a minor sequel after general anaesthesia with endotracheal intubation, it can be distressing to the patient.Objective: The effectiveness of lubricating endotracheal tube with 0.05% betamethasone gel or intravenous dexamethasone in reducing the postoperative sore throat was compared.Materials and method: This was a prospective study carried out among ninety ASA I and II informed consenting patients aged 20-50 years undergoing elective surgery under general anaesthesia with endotracheal intubation. The patients were randomly divided into three groups with thirty subjects in each group. Betamethasone gel (0.05%) was applied over endotracheal tube over 15 cm mark from the tip in group I, intravenous dexamethasone was given in group II and group III was taken as control. In post-anaesthesia care unit, an anesthesiologist interviewed all patients on postoperative sore throat at 1 hour, 6 hours and 24 hours after operation.Results: At 24 hours following extubation, there was statistically significant lower incidence of post-operative sore throat (POST) in betamethasone group compared to other two groups (betamethasone group 3.33%, dexamethasone group 20% and control group 26.66%, p<0.05). When the groups were compared in pairs at 24 hours, there was statistically significant difference in the incidence of POST between betamethasone group and dexamethasone group and also betamethasone group and control group with lower incidence of POST in betamethasone group, p<0.05. It was also observed that there was no significant difference of POST between dexamethasone and control group at 1 hour, 6 hours or 24 hours, p>0.05.Conclusion: It can be concluded that the use of 0.05% betamethasone gel to lubricate widely the endotracheal tube prior to intubation effectively reduces postoperative sore throat, compared to intravenous dexamethasone administration.Delta Med Col J. Jan 2018 6(2): 73-77
Cross Sectional Study of Burn - Experience in 158 Cases
Authors: Shahid Farhana , Chowdhury Tayyaba Musarrat Jaha , Begum Asma , Chowdhury Haibuzzaman , Khan Nashid Tabassum , Akhter Sanjida , Kabir Mohammad Jubaidul , Bose Palash Kumar , Any Omma Hafsa
Published: September 2018

Background: Burns are a global public health problem.Objectives: To find out the status of burn victims along with the causes and consequences of fatal burn injuries.Material and method: The data is collected from the autopsy reports of Dhaka Medical College in 2012. The purpose of this study was to record and evaluate the causes and magnitude of the fatal burn injuries.Results: In 2012, among total 2527 deaths reported at Dhaka Medical College, 158 (6.25%) cases were due to burn. The victims within 21 to 40 years were more vulnerable in comparison to other age groups. Female were more vulnerable than male (55.69% vs. 44.31%). Accidental burn was the commonest cause (55%).Conclusion: Thermal burns and related injuries are major cause of death and disability all over the world as well as Bangladesh. Detail study regarding flame burn is required to be carried out in this country.Delta Med Col J. Jan 2018 6(2): 82-85
Hyperprolactinemia: A Systematic Review of Diagnosis and Management
Authors: Akter Nazma , Qureshi Nazmul Kabir , Akter Tangera
Published: September 2018

Hyperprolactinemia is a common endocrine disorder that can be associated with significant morbidity. It can result from a number of causes, including use of medication, hypothyroidism and pituitary disorders. Depending on the cause and consequences of hyperprolactinemia, selected patients require treatment considering the underlying cause, age sex, and reproductive status. We describe a systematic review of hyperprolactinemia, including microadenomas and macroadenomas, in various clinical settings, with emphasis on newer diagnostic strategies and the role of various therapeutic options, including treatment with selective dopamine agonists. Through this review, we aimed to compare efficacy and adverse effects of medications, surgery and radiotherapy in the treatment of hyperprolactinemia.Delta Med Col J. Jan 2018 6(2): 90-101
Unusual Presentation of Precocious Puberty Associated with Primary Hypothyroidism in a 8.5 Years Old Girl
Authors: Rikta Shamsun Naher , Ashraf Fatema , Areen Samira
Published: September 2018

Precocious puberty is one of the gynaecological problems in childhood. Children with hypothyroidism generally have delayed pubertal development. But primary hypothyroidism is one of the rare causes of precocious puberty especially in long standing untreated patients. Bilateral ovarian enlargement due to multiple cystic ovaries is a rare complication of primary hypothyroidism. For ovarian enlargement no treatment is required at all. This is a case report of an 8.5 years old girl diagnosed as a case of precocious puberty with benign ovarian tumour at a peripheral hospital and was being prepared to undergo laparotomy. When patient was admitted at Shaheed Suhrawardy Medical College Hospital (ShSMCH), Dhaka, Bangladesh, after thorough investigations primary hypothyroidism was diagnosed. She was given thyroxin replacement and close monitoring was done by doing USG of uterus and adnexae, thyroid function test at monthly interval. USG after 2 months revealed significant reduction of ovarian volume and at 6 month ovarian volume reduced to normal. It was also noticed that the rate of reduction of ovarian volume corresponds to the rate of reduction of serum TSH level measured serially at every 2 months interval.Delta Med Col J. Jan 2018 6(2): 102-105
Studies on genetic variability and interrelationship in bottle gourd [Lagenaria siceraria (Mol.) Standl]
Authors: Sultana S , Rahman MS , Ferdous J , Ahamed F , Chowdhury AK
Published: September 2018

The genetic parameters were studied to elucidate the genetic variability, correlation and path co-efficient analysis in thirty-nine genotypes of bottle gourd [Lagenaria siceraria (Mol.) Standl] in randomized complete block design with three replications. Observations were recorded for eleven quantitative characters viz., days to first male flower open, days to first female flower open, node number of first female flower, braches plant-1, days to harvest, number of fruits plant-1, fruit weight, fruit length, fruit girth, 100 seed weight and yield ton ha-1. The analysis of variance showed highly significant differences for all the characters studied indicating considerable variability among the genotypes. The highest GCV (35.57%) and PCV (35.62%) were observed for fruit length. The differences between GCV and PCV were high for fruit number plant-1 and days to first male flower open indicating environmental influences. High heritability associates with high estimates of genetic advance in percent of mean were noted for length of fruit, yield, girth of fruit and number of fruits plant-1. It indicated presence of additive gene effect and selection for these traits would be effective. Yield were positively and significantly correlated with fruit weight, 100 seed weight, branch plant-1 and number of fruits plant-1 .Negative associations of yield were noted with days to first male and female flower open, days to harvest and length of fruit. Path analysis revealed that fruits plant-1 (0.93) and weight of fruit (0.467) had very high positive effect on fruit yield ton ha-1 .Int. J. Agril. Res. Innov. & Tech. 8 (1): 14-17, June, 2018
Road Traffic Accidents in Bangladesh
Authors: Alam Abul Bashar Mohammed Khurshid
Published: September 2018

Abstract not availableJ Bangladesh Coll Phys Surg 2018; 36(4): 137-138