bluuebunny/crossref_metadata_2025 huggingface dataset:
KONSEP PENDIDIKAN ANAK DALAM PERSPEKTIF IBNU HAJAR AL-HAITAMI (Ragam Eksplorasi Kitab Tahrīru al-Maqōl Fī Adābi Wa Ahkāmi Wa Fawā’idu Yahtāju Ilaihā Muˋaddibū al-Aṭfāl)
Authors: Yulianto Yulianto
Published: September 2018

Menurut Ibnu Hajar al-Haitami tujuan pendidikan anak-anak adalah merawat, mengembangkan, dan memaksimalkan potensi peserta didik dalam memahami kitabulloh, berakhlak mulia, dan hidup mandiri. Dalam rangka memenuhi tujuan pendidikan tersebut Ibnu Hajar al-Haitami menulis sebuah kitab yang secara khusus mengulas seluk beluk tujuan pendidikan, aliran pendidikan, kompetensi pendidik, teknik pendidikan anak, biaya pendidikan, dan karakteristik lembaga pendidikan anak. Keenam komponen tersebut oleh Ibnu Hajar al-Haitami di ketengahkan dalam buku Tahrīru al-Maqōl Fī Adābi Wa Ahkāmi Wa Fawā’idu Yahtāju Ilaihā Muˋaddibū al-Aṭfāl. Ruang lingkup penelitian ini adalah enam aspek pendidikan yang termaktub dalam kitab Tahrīru al-Maqōl Fī Adābi Wa Ahkāmi Wa Fawā’idu Yahtāju Ilaihā Muˋaddibū al-Aṭfā, menggunakan teknik penelitian deskriptif content anaylisis, jenis penelitian pustaka, dan memakai pendekatan kualitatif deskriptif. Sumber data primer adalah Tahrīru al-Maqōl Fī Adābi Wa Ahkāmi Wa Fawā’idu Yahtāju Ilaihā Muˋaddibū al-Aṭfāl sedangkan data sekundernya adalah berbagai kitab yang membahas biografi Ibnu Hajar al-Haitami. Sedangkan prosedur penelitian dilakukan melalui tiga tahap: pengumpulan data, pengolahan data, dan pelaporan data. Hasil penelitian ini menunjukkan bahwa (1) tujuan pendidikan anak i terpusat pada potensi materiall dan non material peserta didik; (2) aliran pendidikan anak menggunakan aliran agamis-konserfativ; (3) teknik pendidikan yang paling banyak menyita Ibnu Hajar adalah teknik takzir; (4) kompetensi pendidik yang paling utama adalah kompetensi personal dan sosial; (5) pembiayan pendidikan dapat diperoleh dari tiga faktor: gaji, wakaf, dan hibbah; dan (6) lembaga pendidikan berupa maktab dan madrosah.
Using nitrogen-doped carbon nanotubes as a catalyst support for selective hydrogenation of cinnamaldehyde
Authors: Huu Tri Truong , Dinh Lam Nguyen
Published: September 2018

Nitrogen-doped carbon nanotubes (N-CNTs) has been applied in different areas for over two last decade thanks to their novel properties. In this work, N-CNTs were produced by using chemical vapor deposition method, this material was used as catalyst support for nanoparticles paladi (Pd) catalyst. The support and catalyst Pd/N-CNTs were characterized by several techniques including Raman spectrum, X-ray photoelectron spectroscopy (XPS), nitrogen adsorption - desorption isotherms (BET), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The catalyst was tested for the selective hydrogenation of cinnamaldehyde (CAL), The result of this study shows that the catalyst Pd/N-CNTs exhibits a high selectivity towards the C=C bond, over 91% of hydrocinnamaldehyde (HCAL) obtained at about 70% of CAL conversion. The obtained results also show that the present nitrogen atoms in the carbon architecture and functional groups of oxygen in the N-CNTs material have altered the surface properties, as enhancing the dispersion and anchoring active phase on the surface of the support.
A novel meshfree approach for free vibration and buckling analysis of thin laminated composite plates
Authors: Ngoc Minh Nguyen , Vuong Tri Nguyen , Thanh Nha Nguyen , Tich Thien Truong
Published: September 2018

A novel meshfree radial point interpolation approach which employs a new numerical integration scheme is introduced. The new integration scheme, namely Cartesian Transformation Method, transforms a domain integral into a double integral including a boundary integral and a one-dimensional integral, and thus allowing integration without discretizing domain into sub-domains usually called background mesh in traditional meshfree analysis. A new type of radial basis function that is little sensitive to user-defined parameters is also employed in the proposed approach. The present approach is applied to free vibration and buckling analysis of thin laminated composite plates using the classical Kirchhoff’s plate theory. Various numerical examples with different geometric shapes are considered to demonstrate the applicability and accuracy of the proposed method.
Application of Frequency Response Analysis for in-service power transformers
Authors: Anh Khoi Pham Dinh
Published: September 2018

CIGRE, IEC and IEEE have recently approved the technique of Frequency Response Analysis (FRA) as an application tool for diagnosis of mechanical failures in power transformer’s active part, i.e., windings, leads and the core. The diagnosis is based on the discrepancy between frequency responses measured on power transformers mainly at different time points. In Vietnam, utilities such as Power Transmission Companies and Power Corporations are investigating this technique for application on their power transformers.

Mechanical failures in power transformers cause changes on measured frequency responses starting from a medium frequency range, from several hundreds of Hz or tens of kHz depending on transformer/winding type and power. For a reliable diagnosis, the understanding of transformer/winding structure on measured frequency responses is of importance; thus, the international standards suggested the simulation approach with physical distributed transformer circuits should be exploited.

The development of physical distributed circuits of power transformers normally needs availability of internal transformer structure and material properties for an analytical approach. However, for in-service power transformers, this task is challenging since the required data are not available.

For a feasible application of the simulation based FRA interpretation, this paper introduces an investigation on the development of a distributed equivalent circuit of an in-service 6.5 MVA 47/27.2 kV Yd5 power transformer. The result of this investigation is a feasible approach in determining electrical parameters in a physical distributed circuit, which supports analysis of frequency responses measured at transformer terminals for real application on in-service power transformers of utilities.
Seismic Analysis of AP1000 Nuclear Island Structure by Using the Finite Element Software ANSYS
Authors: Nguyen Kien Dinh , Vu Dong Lam
Published: September 2018

Seismic analysis of AP1000 nuclear island structure by using the commercial finite element software ANSYS is presented. Using the ANSYS Workbench, a sophisticated threedimensional finite element model of the structure is created and employed in the analysis. Dynamic response of the structure to both the one-directional and three-directional acceleration time histories are considered in the analysis. The time histories for the relative displacement, velocity and absolute acceleration of the structure are obtained for various earthquakes, including American El Centro, Japanese Kobe and Vietnamese Dien Bien earthquakes. The numerical results show that the dynamic characteristics obtained by using one-directional and thee-directional acceleration time histories are different, and the three three-directional acceleration time histories should be employed in the seismic analysis. The result also reveals that the nuclear island is safer in Dien Bien earthquake that it is in El Centro and Kobe earthquakes. The distribution of the von Mises stresses of the structure according to the maximum displacement at the top point is also examined and highlighted.
A family of modified Newton iteration method for solving nonlinear algebraic equations
Authors: Nghiem Luc Xuan , Nguyen Hieu Nhu
Published: September 2018

In this study, a modified Newton iteration version for solving nonlinear algebraic equations is formulated using a correction function derived from convergence order condition of iteration. If the second order of convergence is selected, we get a family of the modified Newton iteration method. Several forms of the correction function are proposed in checking the effectiveness and accuracy of the present iteration method. For illustration, approximate solutions of four examples of nonlinear algebraic equations are obtained and then compared with those obtained from the classical Newton iteration method.
Inverse dynamic analyzing of flexible link manipulators with translational and rotational joints
Authors: Duong Bien Xuan , Chu My Anh , Phan Khoi Bui
Published: September 2018

Inverse dynamic problem analyzing of flexible link robot with translational and rotational joints is presented in this work. The new model is developed from single flexible link manipulator with only rotational joint. The dynamic equations are built by using finite element method and Lagrange approach. The approximate force of translational joint and torque of rotational joint are found based on rigid model. The simulation results show the values of driving forces at joints of flexible robot with desire path and errors of joint variables between flexible and rigid models. Elastic displacements of end-effector are shown, respectively. There are remaining issues which need be studied further in future work because the error joints variables in algorithm to solve inverse dynamic problem of flexible with translational joint has not been mentioned yet.
Dynamic analysis of firing mechanism of underwater pistol
Authors: Nguyen Dung Thai , Nguyen Hung Van
Published: September 2018

The important problem of designing underwater pistol was analysed and calculated the dynamics of firing mechanism. On the basis of analyzing the performance of the underwater pistol, the paper presents a theoretical model for analysing the dynamics of firing mechanism of underwater pistol with the with the resistance of water acting on firing pin and slide. The result of this research can be applied to design the underwater pistol and underwater firearm.
Design and enhance the vein recognition using near infrared light and projector
Authors: Tran Tien Van , Dau Hieu Sy , Nguyen Dan Tri , Huynh Sang Quoc , Huynh Linh Quang
Published: September 2018

The difficulty of intravenous access in patients is an important clinical issue. Recently, many studies and several devices have been developed to assist physicians, nurses and surgeons in finding veins. Amongst them, near infrared imaging technology is one of the new technologies being widely used in the biomedical. NIR imaging allows visualizing veins underneath the skin of those having non-visibility of veins problem, mapping the normal and abnormal veins in treating disorders, or diagnosing related diseases. In this paper, we will introduce a portable device which can help doctors and nurses visualize blood vessel maps of their patients. On basic of combining a vein infrared imaging method and a projector system, this vein instrument can be optimally designed for viewing veins in the monitor or displaying vessel maps of patients directly on their skin.
Dynamic Analysis of Knee-Exoskeleton and Its implementation to Design of Magnetorheological Damper
Authors: Do Phu Xuan , Mai Long Bui Quoc , Le Chi Van , Tran Thang Le Huy
Published: September 2018

In this study, a new development of knee exoskeleton is presented. Kinematic parameters of the proposed exoskeleton are analysed to find relations among forces and torques. After analysing, the damping force of magneto-rheological (MR in short) damper is carried out. The magnetic flux density and the yield stress functions are found, and these functions are bases for derivation of damping force formulation. The forces from the exoskeleton are directly related to the damping force. Hence these values are used as an objective to find the optimized geometry of the damper. The optimization process is done by using ANSYS ADPL. It is shown that the requirement of design is obtained.
Dye-sensitized solar cells using deep eutectic solvents mixed with ethanol as an effective electrolyte medium
Authors: Nguyen Thuy-Duy Thi , Nguyen Phuong Tuyet , Tran Phuong Hoang
Published: September 2018

This research aims to develop a new type of electrolyte for dye-sensitized solar cells (DSCs) which can be produced in cost-effective and large scale. DSCs using deep eutectic solvents (DESs) mixed with ethanol (50% w/w DES content), as an electrolyte medium, was studied herein for the first time. Ten types of DESs were synthesized and three among them were potential candidates for DSC electrolytes. Compared to toxic and volatile organic solvents, this mixed solvent is more eco-friendly and inexpensive. According to J-V curve measurements, DSCs that used DES-ethanol medium showed promising photovoltaic performance.
Phenotypic and cytogenetic characterization of expanded adipose derived stem cells
Authors: Truong Nhat Chau , Vu Anh Thi Van , Pham Vuong Minh
Published: September 2018

Introduction: Human adipose derived stem cells (hASCs) have great potential for regenerative medicine. The demand for hASCs, especially in the development of off-the-shelf products, is increasing. Although the initial receipt of hASCs was relatively limited, there is now greater interest and also awareness that in vitro expansion of hASCs be further explored. The purpose of this study was to assess the integrity of mesenchymal cell characteristics and the mutant capability of chromosome number on hASCs undergoing in vitro expansion. Methods: In this study, three hASC samples from three Vietnamese people were collected and proliferated in MSCCult medium (Regemedlab, Ho Chi Minh City, Viet Nam) to the 5th cell passage. Next, hASCs were evaluated for change of mesenchymal stem cells (MSCs) characteristics including shape, immunophenotype (CD14, CD34, CD44, CD73, CD90, and/or CD166), and trilineage differentiation ability. Finally, the number of chromosomes after passages 1, 3, and 5 was evaluated by karyotyping technique. Results: The results showed that after five passages of culture, hASCs preserved the characteristic shape of MSCs, high expression of mesenchymal markers (e.g. CD44, CD73, CD90, and CD166). However, the cells also maintained their differentiation capacity to develop into various tissues such as bone, cartilage, and fat. The hASCs showed no mutation in the number of chromosomes. However, markers of hematopoietic cells (such as CD14 and CD34) exhibited heterogeneous changes between the samples during proliferation. Conclusion: In conclusion, at passage 5, hASCs retained the integrity of MSC features and there was no mutation discovered in the number of chromosomes. However, further evaluation is needed to conclude that the use of cultured cells in treatment is effective and safe.
The effects of consumer ethnocentrism on Vietnamese brand credibility and perceived value - A Study of Vietnamese branded smartphone
Authors: Truong Ngoc My , Le Hau Nguyen
Published: September 2018

This study investigated the role of consumer ethnocentrism on the perception of brand credibility in the case of Vietnamese branded smartphone – a high-tech, multiplevalue product being manufactured locally. Based on a survey of 259 consumers, the analysis revealed that ethnocentrism exerts a strong impact on brand credibility which leads to positive product judgement and perceived value. Ethnocentrism also has a direct impact on the perceived value of Vietnamese branded smartphone, resulting in the willingess-to-buy. Besides contributing to the current literature, the findings also provide suggestions for new Vietnamese smartphone brands to develop brand credibility on the basis of consumer ethnocentrism
Brand equity and brand - Consumer relationship quality in Vietnam
Authors: Nguyen Nguyet Thi Hong
Published: September 2018

Building a quality relationship between the brand and consumers is necessary for an enterprise to exist and develop [11]. As a result, brand relationship quality attracts a great deal of interest from researchers. Many studies have been conducted on the nature and aspects of brand relationship quality. However, limited research has investigated the nature of brand - consumer relationship quality in B2C market, especially the nexus between brand equity and brand relationship quality. Furthermore, most of them are conducted in foreign countries. This study examines the nature of brand - consumer relationship quality and consider the nexus between components of brand equity and brand relationship quality in the Vietnam’s consumer market, Structural Equation Modeling (SEEM) was employed, using data from a survey on 600 consumers. The results indicate that brand image and brand attractiveness have a positive effect on relationship quality and brand loyalty is a result variable of brand relationship quality.
Solutions to promote the equal commercialization of traditional knowledge in Vietnam
Authors: Chau An Quoc
Published: September 2018

The equal commercialization of traditional knowledge plays an ever increasingly important role in poverty elimination, cultural preservation, and sustainable socio-economic development. However, the commercial exploitation of traditional knowledge has not been paid appropriate attention whereas reasonable benefits of the indigenous are not properly respected; privacy, culture and belief of the indigenous community are violated. In order to promote the commercialization of traditional knowledge as well as to ensure the equality in the exploitation process, this paper presents an overview of the current commercial exploitation of traditional knowledge in Vietnam as well as analyzes reasons leading to unsustainable and unequal exploitation of traditional knowledge, thereby providing feasible solutions to boost the equal commercial exploitation of traditional knowledge.
The impact of institutional difference on Vietnamese firms’ export intensity: The role of international experience
Authors: Vo Dut Van
Published: September 2018

Institutional theory and most previous studies assume that institutional difference between home and host countries is negatively related to firm’s performance in foreign market (including firm’s export intensity). Extending this assumption, we hypothesize that international experience is likely to moderate the negative effect of institutional distance on firm’s export intensity. Survey data from World Bank on 305 Vietnamese firms were used to test the proposed hypotheses. Both Tobit and OLS regressions reveal that with controlling characteristics of firm, the negative effect of institutional difference on export intensity of firm with the low level of international experience is higher than on that with the high level of international experience. The study provides managerial implications to literature.
Applying expanded Elaboration Likelihood Model to explain the effect of consumergenerated content on consumers
Authors: Nguyen Khoi Huu , Do An Nhu
Published: September 2018

This study aims at explaining the influence process of YouTube’s consumer-generated content on consumers’ cognition, attitude and purchase intention. The proposed model is based on Elaboration Likelihood Model with extensive variables including perceived usefulness, attitude, information adoption and purchase intention. To test the validity of proposed model and research hypotheses, Structural Equation Model is applied on a sample of 208 individuals who are interested in smartphone. The results show that the measurements are reliable and valid and research model can be used for explaining the effect of consumer-generated content on consumers. Besides, all hypotheses are empirically supported. This study, therefore, has contributions on both academic and practical aspects.
Identifying traditional knowledge and the equal commercialization of traditional knowledge in the process of integration and development
Authors: Chau An Quoc
Published: September 2018

The implementation of international commitments on intellectual properties has become a concern of many Vietnamese enterprises. Nevertheless, there exist intellectual properties of ethnic communities that Vietnamese enterprises forget – the traditional knowledge. This term is a relatively new and controversial in Vietnam. This paper focuses on clarifying the connotation of "traditional knowledge" and analyzing the role of equal commercialization of traditional knowledge in preserving culture and sustainably developing the society and economy.
PM2.5 personal exposure and sources of population living near 2 environment monitoring stations in Ho Chi Minh city
Authors: Vu Dan Xuan , Truong Canh Thanh
Published: September 2018

Air pollution epidemiology studies have found statistically significant associations between particulate matter (PM) concentrations and morbidity, mortality. 24-h personal PM 2,5 exposures were sampled by PEM 2,5 (SKC) with flowrate 4 l/minute on teflon filter (Pall). 64 households in Binh Thanh and district 2 (HCM city) were monitored from 7/2007 to 3/2008, repeated 9 times for each household. Elements in particle were analysed by INAA. Software PMF 5,0 (EPA) was used to detemine PM2,5 sources. PM2,5 was also monitored at 2 fixed-site monitor stations, D2 and zoo, during sampled time with the same 24H Personal PM 2,5 method. Medium PM2,5 concentration at fixed-site monitor station was 48,99 ± 21,68 μg/m3 (median: 46,46 μg/m3), lower than the ambient standard limit. 24-h personal PM 2,5 exposure was là 64,28 ± 33,18 μg/m3 (median: 58,17 μg/m3), higher than the ambient standard limit (p<0,05). PM2,5 sources were from dust (16,03%), traffic (17,72%), industrial (30,48%), indoor activity (21,03%) and marine (14,74%).
Risk of acidification of the organic shrimp model at Tam Giang commune, Nam Can district, Ca Mau province
Authors: Nguyen Tho , Dang Khanh Nguyen Nha , Tran Tu Thi Kim
Published: September 2018

This paper assesses the risk of acidification of the organic shrimp model certified by Naturland at Tam Giang commune, Nam Can district, Camau province. Pond water and sediment was sampled in 8 ponds in March, July and November 2015, dike soil and mangrove soils were sampled in March 2015. Pond sediment and mangrove soils are highly reduced (Eh of top sediment and soils to 60 cm depth range respectively from -299 – -1mV and -321 – -52mV). Pond water ranges from neutral to slightly alkaline (pH of pond water 7.01-8.82) and sediment from slightly acidic to slightly alkaline (pH of fresh sediment 6.05-7.64, pHH2O 6.63-7.78, pHKCl 6.35-7.43). Mangrove soils show a large pH range with very low minimums (pHH2O 3.72, pHKCl 3.05), reconfirming the presence of pyrite mineral in the soil profile. Mangrove soils deposited on the dikes (partly oxidized) are very acidic (pHH2O 2.51±0.72, pHKCl 1.81-2.14, exchange acidity 11.56±2.69 meq/100g). At the start of the wet season, pH of pond water reduces sharply as a result of reception of acidic components from the oxidized pyritic material (FeS2) on the dikes. The exchange acidity in pond sediment and mangrove soils are negatively correlated with organic matter, indicating that the decomposition of organic matter under reduced conditions contributes to exchange acidity in pond environment. Risk of acidification of the organic shrimp model is high due to managerial activities (mostly channel digging and disposal of pyrite-containing mangrove soils on the dikes).
Surveying emissions of greenhouse gas CO2 in the canals of Ho Chi Minh city by floating chamber method
Authors: Tran Trang Thi Nhu , Nguyen Nho Thanh , Do Huy Minh , Nguyen Duc Thanh
Published: September 2018

Carbon dioxide (CO2) is one of the most important greenhouse gases and atmospheric CO2 concentrations have been recorded increasing. Floating chamber associated with Non-Dispersive Infrared (NDIR) technique as Licor-820 has been used for measuring the CO2 flux F(CO2) (mmol m-2 h-1) that emitted from the water surface on the various canals of Ho Chi Minh City. The highest values at 3 sites: CH – Kenh Đoi, DBP – Kenh Nhieu Loc – Thi Nghe and CD – Rach Cau Son ranged from 35 to 186 mmol m-2 h-1 while much higher at OB site – Rach Ong Lon from 120–474 mmol m-2h-1. Climate characteristics also greatly affect the CO2 emissions in natural waterways with low F(CO2) values in dry season – the highest value fluctuated between 35 and 181 mmol m-2 h-1 while in the rainy season the highest F(CO2) value was 446 mmol m-2 h-1 for OB site and ranged from 65 to 186 mmol m-2 h-1 for 3 other sites CH , DBP and CD. Pollution of waterways also affected on the CO2 emissions.
Developing IDF curve of extreme rainfall at Tan Son Hoa station for the period 1980-2015
Authors: Nguyen Quan Trong , Pham Nhi Thi Thao , Dao Khoi Nguyen
Published: September 2018

Recently, the Intensity – Duration – Frequency (IDF) relationship of extreme rainfalls in a local area is usually investigated to provide accurate required data for calculating, planning, and developing urban drainage systems, especially in the context of climate change. Traditionally, IDF curves are computed based on a statistical method for analyzing the frequency of occurrence or non-occurrence of annual extreme rainfall events over a return period; or based on a probability distribution function of these events. However, these traditional methods do not take into consideration the relationship between extreme rainfalls of different durations as they only simulate the intensity of extreme rainfall events at each individual duration after generated a large number of parameter sets. Therefore, the results of these methods are inaccurate and much depend on the actual observed data. In this study, a new approach to develop IDF relations was proposed based on the scale-invariance nature of extreme rainfalls at different durations. This method will be examined and compared with traditional methods based on the IDF curves of extreme rainfalls at Tan Son Nhat gauge station (HCMC) from 1980 to 2015. Results have indicated that there is a linear relationship between extreme rainfalls at different time scales and showed that the proposed method is appropriate for estimating the IDF curves with many prominent advantages rather than traditional method.
Landslide Hazard Zonation Along Milot-Kukës Motorway, Albania
Authors: Muceku Ylber , Jaupaj Olgert
Published: September 2018

In this paper it is briefly described the landslide hazard zonation before and after the construction of the Milot-Kukës motorway, Albania. The studied area is a mountains zone with extremely complicated morphological and geological framework, characterized by steep slopes, intensively fractured and highly to completely weathered rocks. Due to intensive excavations done during its construction, many of the slopes are destabilized and nowadays, have become unstable. During and after the rainfalls, on both sides of the motorway, several landslides such as earth slide debris flow, rock falls and rocks slides have occurred and have increased the risk due to natural hazards. For this reason, the motorway’s area is analyzed in terms of landslide hazard zonation by using the high-resolution satellite imagery and factors data in a GIS environment. During 2015-2017, a 1:10000 scale engineering geological map is compiled and was used to identify the landslides location, lithological characteristic, slope features, geotechnical conditions and land use situations. As a result, the studied area was divided into five categories from very low to very high-risk zones. Moreover, based on the analysis results of the landslide hazard zonation before the motorway’s construction, it was concluded that the excavation works had a considerable influence in increase of hazard level, particularly on the instability of the slopes.
Distribution of Crops and Cropping Patterns in Bangladesh
Authors: Nasim M , Shahidullah SM , Saha A , Muttaleb MA , Aditya TL , Ali MA , Kabir MS
Published: September 2018

Agricultural land use and distribution of cultivated crops expressed in cropping pattern (CP) constitute the base for increasing produtivity. An in-depth study was conducted on the existing CPs of Bangladesh in each and every upazila (sub-districts) using semi structured questionnaire and data validation by the stakeholder consultation workshop conducted in each of 64 districts. Three hundred and sixteen CPs were identified throughout Bangladesh excluding the very minor ones. Topmost five CPs were only rice containing CPs, which covered 51% of the net cropped area. The most dominant CP was Boro- Fallow-T. Aman covering 27% of net cropped area. Results on major cropwise CPs, location-wise CPs, CP diversity and crop diversity etc are also presented herein.Bangladesh Rice j. 2017, 21(2): 1-55
Diversity of Cropping Pattern in Bogra
Authors: Islam ABMJ , Shahidullah SM , Mostafizur ABM , Saha A
Published: September 2018

With a view to document the existing cropping patterns, cropping intensity and crop diversity, a study was carried out over all the upazilas of Bogra agricultural region during 2015-16. A pre-tested semi-structured questionnaire was properly used for this purpose. In the findings it was recorded that 21.88% of net cropped area (NCA) of the region was occupied by the cropping pattern Boro−Fallow−T. Aman. This pattern was found to be distributed over 27 upazilas out of 35. The second largest area, 13.26% of NCA, was covered by Potato−Boro−T. Aman, which was spread over 17 upazilas. A total of 177 cropping patterns were identified in the whole region in this investigation. The highest number of cropping patterns was identified 36 in Nandigram upazila and the lowest was six in Dupchachia and Kahalu upazila of Bogra district. The lowest crop diversity index (CDI) was reported 0.718 in Raiganj upazila of Sirajganj district followed by 0.734 in Kalai of Joypurhat. The highest value of CDI was observed 0.978 in Pabna sadar followed by 0.972 in Bera upazila. The range of cropping intensity values was recorded 183-291%. The maximum value was for Khetlal upazila of Joypurhat district and minimum for Bera of Pabna. As a whole the CDI of Bogra region was calculated 0.966 and the average cropping intensity at regional level was 234%.Bangladesh Rice j. 2017, 21(2): 73-90
Crops and Cropping Systems in Dinajpur Region
Authors: Shirazy BJ , Islam ABMJ , Dewan MMR , Shahidullah SM
Published: September 2018

The development of agricultural planning 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 a guideline to the policy makers, researchers, extensionists and development workers. A study was undertaken over all the upazilas of Dinajpur region during 2016 using pre-tested semi-structured questionnaire with a view to document of the existing cropping patterns, intensity and diversity for the region. The most important cropping pattern Boro-Fallow-T. Aman occupied about 41% of net cropped area (NCA) of the region with its distribution over all the upazilas. The second largest area, 9% of NCA, was covered by Wheat-Fallow-T. Aman, which was spread over 18 upazilas. A total of 112 cropping patterns were identified in the whole region. The highest number of cropping patterns was identified 30 in Boda upazila of Panchagarh district while the lowest was 11 in Kaharol upazila of Dinajpur district. The lowest crop diversity index (CDI) was reported 0.708 in Birampur followed by 0.753 in Ghoraghat of Dinajpur. The highest CDI was reported 0.955 in Ranisonkail followed by 0.952 in Baliadangi of Thakurgaon. The range of cropping intensity was recorded 206-249% whereas the maximum value was found for Khansama of Dinajpur and minimum for Boda of Panchagarh district. As a whole, CDI and cropping intensity for Dinajpur region were calculated 0.924 and 229% respectively, which indicates that the land use and crop diversification is not quite enough for the national demand.Bangladesh Rice j. 2017, 21(2): 143-156
Cropping Systems and Land Use in Sylhet Region
Authors: Muttaleb MA , Shahidullah SM , Nasim M , Saha A
Published: September 2018

Towards the sustainable food security for a particular area, the policymakers, researchers, extension and development agents need the detailed information of cropping patterns, cropping intensity and crop diversity. Sylhet, a potential region of enormous potentiality of growing crops across the haor area lying below the northeastern Himalyan foothills experience the highest rainfall in the world to make the basin prone to flashflood. That is why, a study was conducted in the region considering all the upazillas during 2016 using the pretested semi-structured questionnaire and validated by appropriate informants with a view to documenting the existing cropping patterns, cropping intensity and crop diversity in the region. As per the study the region is dominated by the rice based cropping pattern. The non-rice based cropping pattern are either few or the area under those cropping patterns are not enough to satisfy the non-rice food requirement of people of the region. Beside these, the cropping patterns and crop diversity appeared as below the expected level. Therefore, much thrust is needed to initiate research and development activities to diversify the single or double-cropped cropping pattern with the introduction of appropriate crops and crop varieties even other non-crop agricultural commodities.Bangladesh Rice j. 2017, 21(2): 273-288
Role of Clinical Cardiology in Modern Medicine
Authors: Chowdhury Abdul Wadud
Published: September 2018

Abstract not availableCardiovasc. j. 2018; 11(1): 1-3
Persistent Pulmonary Hypertension of the Newborn: Analysis of 181 cases over one Year
Authors: Fatema Nurun Nahar
Published: September 2018

Background: Persistent pulmonary hypertension (PPHN) is the persistence of the high pulmonary arterial pressure after birth which is a characteristic of the fetal circulation. PPHN is associated with substantial infant mortality and morbidity. Various treatment protocol are used according to the need of the patient. This study aimed to see the spectrum of the disease and its outcome in Bangladesh.Methods: 181 newborn babies were diagnosed as persistent pulmonary hypertension or persistent fetal circulation. After establishing diagnosis, all cases were kept in NICU and various management plans were prescribed according to necessity of a specific case. Repeat echocardiography was done after 72 hours to see the response of treatment. Residual congenital cardiac lesions were managed later on.Results: Most of the patient (69.06%) was diagnosed at first week of life. Minimum age of the patient was 1 day and maximum age 23 days. Among 181 cases 109 (66.22%) were male and 72(39.77%) were female. Associated congenital lesions like atrial septal defect was found in 52 (28.72%) cases, patent ductus arteriosus (PDA) was found in 14 (7.73%) cases and ventricular septal defect (VSD) was found in 2 (1.10%) cases. Combination of ASD & PDA was found in 75 (44.33%) cases. Systolic pulmonary artery pressure was more than 60 mmHg in 103 (56.91%) cases, more than 50 mmHg in 53 (29.28%) cases and more than 30 mmHg in 25 (13.81%) cases. Most of the patient (100%) received high flow oxygen therapy along with anti failure (66.30%) and sildenafil 98 (54.14%) therapy as per requirement of the patient. Complete cure was achieved in 95.58% cases and mortality was only 1.10%.Conclusion: These data showed a very impressive outcome of the PPHN in Bangladeshi Newborn even with minimally invasive management.Cardiovasc. j. 2018; 11(1): 17-22
In-hospital Outcome of Patients Presenting with Acute Anterior STEMI with Complete Right Bundle Branch Block
Authors: Sarker Sudhakar , Chowdhury Abdul Wadud , Sabah Khandker Md Nurus , Amin Md Gaffar , Ali Mohammad , Saha Bishnu Pada , Rahman Md Sajjadur
Published: September 2018

Background: Patients with acute anterior ST-segment elevation myocardial infarction (STEMI) and right bundle-branch block (RBBB) have high mortality risk, which may be stratified by early ECG changes. Our objective was to find out and to compare in-hospital outcome of patients presenting with acute anterior STEMI with or without complete RBBB.Methods: This prospective cohort study was conducted in the Department of Cardiology, Dhaka Medical College Hospital, Dhaka, over a period of one year from March 2016 to February 2017. A total of 184 patients were included in this study of which 32 patients were included in group A (acute anterior STEMI with complete RBBB) and 152 patients were included in group B (acute anterior STEMI without any BBB or fascicular block).Results: RBBB was documented in 17.4% (32) of patients with acute anterior STEMI. Acute LVF (50.0% vs. 26.3%, p<0.05), Cardiogenic shock (31.3% vs. 13.2%, p<0.05) and mortality (21.9% vs 7.9%, P<0.05) were more frequently observed in patients with complete RBBB in comparison to patients without any BBB or fascicular block (FB). Among the AMI patients with RBBB, permanent RBBB was associated with a greater incidence of acute LVF (54.2% vs 37.5%, p>0.05), cardiogenic shock (37.5% vs 12.5%, p>0.05) and mortality (25% vs 12.5%, p>0.05).Conclusion: In this study right bundle branch block accompanying acute anterior STEMI was associated with high in-hospital adverse outcomes.Cardiovasc. j. 2018; 11(1): 31-38
Preservation of Posterior Mitral Leaflet in Mitral Valve Replacement: Effect on Left Ventricular Geometry with Immediate Outcome.
Authors: Alam AKM Manzurul , Ahmed Monzil , Ahmed Istiaq , Hossain Mamun , Reza Mohashin , Ahmed SM Parvez , Rahman Mizanur , Islam Saiful
Published: September 2018

Bcakground: Preservation of the posterior mitral leaflet and subvalvular structures during mitral valve replacement (MVR) preserve left ventricular geometry and function. We evaluated the effect of preservation of subvalvular structures during mitral valve replacement on LV ejection fraction (LVEF).Methods: Total 60 patients were taken and then grouped into group A and group B. Group A include patients of MVR with preservation of posterior leaflet and subvalvular structure, Group B without preservation of subvalvular structures. All patients were evaluated before operation, at discharge, and at 3 months follow-up. Left ventricular function was assessed by ventricular ejection fraction (LVEF).Results: Preoperative LV ejection fraction was 58.3±11.0% and 56.6±8.4% in Group A and Group B respectively. Post-operative mean LVEF at discharge was found 44.2±5.1% in group A and 37.3±4.8% in group B. Observation at three months follow-up showed that mean LVEF was 49.0±4.7% in group A and 39.6±4.7% in group B.Conclusion: Left ventricular function is better maintained when MVR is done preserving posterior leaflet and subvalvular structure.Cardiovasc. j. 2018; 11(1): 39-41
Vascular Thoracic Outlet Syndrome: Experiences at the National Institute of Cardiovascular Diseases, Dhaka
Authors: Hossain MF , Sarker SR , Sabah MN , Bashar AHM , Dey NK , Hakim E , Hossain GMM , Mandal NC
Published: September 2018

Background: To analyze our recent experiences at the National Institute of Cardiovascular Diseases (NICVD) with the management of vascular Thoracic Outlet Syndrome (TOS).Methods: Retrospective review identified 51 patients (age range 23 to 67 years) with vascular TOS, among them 47 patients with arterial type TOS underwent surgical treatment from January 2012 to December 2015. Evaluation included clinical assessment plus duplex ultrasonography and contrast arteriography and outcome of treatment.Results: In 44 (94%) patients, surgery was successful in relieving the ischemic symptoms. Major amputations could be avoided in 21 of the 28 patients presenting with gangrene. Recurrent thrombo-embolism of the distal arterial tree was found in 5 patients requiring repeat embolectomy. At one year follow-up, 73% of the patients remained free from ischemic upper limb symptoms.Conclusions: Though relatively uncommon, arterial TOS is a potentially limb threatening condition. Early detection of the anatomical abnormality with its surgical correction is required to avoid major complications.Cardiovasc. j. 2018; 11(1): 50-52
Role of Stress Echocardiography to assess Valvular Heart Disease
Authors: Rahman Md Toufiqur , Islam AKM Monwarul , Ullah Mohammad , Majumder Abdullah Al Shafi
Published: September 2018

Abstract not availableCardiovasc. j. 2018; 11(1): 67-80
Rheumatic Mitral and Aortic Valve Disease- A Case Report from USA
Authors: Roychoudhury Debasish , Nanda Navin C , Hon John J , Filsoufi Farzan , Salma Ahmed Y , Akdogan Raziye E
Published: September 2018

Although virtually eradicated in the United States, rheumatic heart disease still carries a sinister outcome causing significant mortality and morbidity in developing countries in Asia, Africa and the Pacific Islands where it still remains in endemic form. Our case involves a 35-year-old female patient born and raised in India who recently migrated to the United States. Her echocardiogram revealed severe combined aortic and mitral valve stenosis and severe aortic regurgitation. We hereby analyze echocardiographic findings in concomitant rheumatic aortic and mitral valve disease with preserved left ventricular (LV) systolic function. We also discuss treatment implications with combined surgical replacements of both valves with mechanical prostheses.Cardiovasc. j. 2018; 11(1): 81-85
Cardiac Lymphoma Revealed by Atrial Mass
Authors: Sawadogo Adama , Miguel Bruno , Azarnoush Kasra , Camilleri Lionel
Published: September 2018

Primary cardiac lymphoma (PCL) represents a very exceptional clinical entity whose treatment is based on chemotherapy. In this case report, the authors highlight the key role of cardiac surgery in the diagnosis of PCL in a 66-year-old female patient. She was given chemotherapy and so far was on remission.Cardiovasc. j. 2018; 11(1): 86-88
Cataract Surgery under Local Anaesthesia - Search for Safer One
Authors: Siddique Md Abdus Salam , Hoque Md Fazlul , Naser Md Jamal Abu
Published: September 2018

Background: Cataract surgery is usually done under local anaesthesia. But till now there are no absolutely safe local anaesthetics. Current study is done to find out a safer local anaesthetic for cataract surgery.Objective: To evaluate the onset, duration, quality, side effects and safety of bupivacaine and lignocaine in peribulbar block (PBB) for cataract surgery.Materials and method: This was a randomized observational controlled clinical study done in Monno Medical College Hospital, Manikganj, Bangladesh, in the period of October, 2014 to October, 2015. Two hundred cataract patients attending ophthalmology department were allocated to receive either 4 mL 0.5% bupivacaine+4 ml 2% lignocaine or 8 mL of 2% lignocaine for peribulbar block during cataract surgery. Onset, duration, quality of anaesthesia and after effects were used as a clinical parameter for the study.Results: Mean anaesthetic durations of lignocaine and bupivacaine+lignocaine were 75 minutes and 120 minutes respectively. Least complications were observed in subjects with lignocaine.Conclusion: Peribulbar blocks with 2% lignocaine provide better anaesthesia for cataract surgery and success rates are high without any complications. Anaesthetic time of lignocaine alone is enough for cataract surgeryDelta Med Col J. Jan 2018 6(2): 68-72
Serum Lipid Profile in Adult Nephrotic Syndrome Patients
Authors: Rahman Taniza , Sultana Nasima , Molla Golam Morshed , Mazumder Pinke , Chowdhury Sanjeela Nahreen , Rahman Irin
Published: September 2018

Background: The nephrotic syndrome is a constellation of abnormalities that includes massive proteinuria, hypoalbuminaemia and oedema. Lipid abnormalities have an important biochemical basis in the disease process of adult nephrotic syndrome. Dyslipidaemia in nephrotic syndrome is involved in cardiovascular risk and also accelerates the progression of glomerular dysfunction.Objective: To find out the association between serum lipid profile and nephrotic syndrome in adult.Materials and method: This case control study was carried out in the Department of Biochemistry, Dhaka Medical College, Dhaka, Bangladesh, during the period of July 2013 to June 2014 to evaluate the association of serum lipid profile in adult patients with nephrotic syndrome. One hundred (100) study subjects were included, among them fifty (50) were diagnosed adult nephrotic syndrome patients selected as case and fifty (50) were age and sex matched healthy adult individuals selected as control. Serum lipid profile and serum albumin were measured for both case and control. All the statistical analyses were done by using SPSS for Windows version 20.0.Results: Mean±SD of serum total cholesterol (Tchol), triacylglycerol (TAG), high density lipoprotein (HDL-C), and low density lipoprotein (LDL-C) of case were 288.23±35.67 mg/dL, 174.53±18.86 mg/dL, 23.71±4.58 mg/dL, and 231.16±34.28 mg/dL respectively and that of control were 171.04± 24.36 mg/dL, 129.58± 23.47 mg/dL, 37.5± 7.01 mg/dL, and 103.58±36.83 mg/dL respectively. Serum Tchol, TAG, LDL-C levels were significantly higher in cases than the control (p<0.0001) and serum HDL-C level was significantly lower in cases than the control (p<0.0001).Conclusion: Dyslipidaemia is associated with adult nephrotic syndrome. Routine check-up of lipid profile will help to prevent the development of cardiovascular and cerebrovascular complications in adult nephrotic syndrome patients.Delta Med Col J. Jan 2018 6(2): 78-81
Occupational Stress among Nurses in a Public Medical College Hospital
Authors: Das Shila Rani , Biswas Chinmay , Afrin Sharmina
Published: September 2018

Background: Now a days, there is increased demand and progress in the nursing profession. Along with these stress among the nurses has also increased.Objective: Purpose of the study was to assess the extent of perceived occupational stress and its association with work-related and non-work related causes among nurses.Materials and method: This Cross-sectional study was carried out among 197 nurses of Shaheed Suhrawardy Medical College hospital (ShSMCH), Dhaka, Bangladesh, from the period of 1st July 2015 to 30th June 2016. Sampling method was simple random sampling. Data was collected by face to face interview with the help of semi-structured questionnaire and finally all data were analyzed using SPSS software version 21.Results: It was found that 69% nurses were between the age of 21 to 39 years, 94.9% were female, 68% were married, 79.2% were Muslim, 84.3% had diploma, family income of 91.4% were equal to more than 40,000 Tk. and 95.5% used to do clinical work. Only 5.1% found to experience high stress. Statistically significant difference was found between sex, occupational stress and religion, educational status, and type of work (p < 0.05). Few nurses suffered from high stress but high level of stress were more in male, non Muslim, post graduate nurse and those who were engaged in administrative work.Conclusion: Nurse Managers should take appropriate actions to decrease stress helping their nurses to work efficiently and effectively.Delta Med Col J. Jan 2018 6(2): 86-89
Reviewers in this issue Vol.6(2)
Authors: Rahman Md Rezwanur
Published: September 2018

Abstract not availableDelta Med Col J. Jan 2018 6(2): 106
Impacts of three pesticides on arthropod biodiversity in brinjal agro-ecosystem
Authors: Akter S , Alam MZ , Rana MS , Saif HB
Published: September 2018

A field study was conducted to find out the impact of three selected pesticides on arthropod biodiversity in brinjal agro-ecosystem during 2011-2012 at Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU). Twenty-six arthropod species were observed through visual searching method out of which 18 were insect pest species (from 14 families under 8 orders) and 8 were natural enemies (from 8 families under 6 families). Twenty one species of surface dwelling arthropods were caught in pitfall traps method, 12 of them were insect pest species (from 11 families under 8 orders) and 9 were natural enemies (from 9 families under 5 orders). Formicidae was the most abundant family among them. Bacillus thuringiensis (Bt) and Tracer 45SC (Spinosad) were less harmful to arthropod pest species as well as natural enemies in the brinjal agro-ecosystem. Proclaim 5SG reduced the overall abundance of arthropod species. Bacillus thuringiensis (Bt) and Tracer 45SC were relatively safe for natural enemies and therefore would be fit well into integrated pest management (IPM) against BSFB of brinjal crop.Int. J. Agril. Res. Innov. & Tech. 8 (1): 55-61, June, 2018