IUBAT Review
A Multidisciplinary Academic Journal
About Journal > Submit An Article >

Latest Publications

Published on 2021

Abstract:The study deals with assessing water quality parameters including pH, total dissolved solids (TDS), dissolved oxygen (DO), biological oxygen demand (BOD), temperature, transparency, hardness, and turbidity of the Turag River in Tongi, Gazipur, Bangladesh based on the standards of the Department of Environment (DoE) in Bangladesh, the Department of Public Health Engineering (DPHE), and the World Health Organization (WHO). The physicochemical parameters of water were investigated for nine stations (S1 to S9) in the Turag River through laboratory experiments considering three different sources, i.e., discharge point (DP), contamination point (CP), and midpoint (MP). The average pH values ranged between 6.44 and 7.76, indicating that all values were within the standard limits (pH=6.5 to 8.5) for aquatic creatures for all stations except S7 (pHCP=6.44). The average values of TDS were 0.31~0.90 ppm, which reveals a low TDS condition. The average values of DO were 3.79 to 6.49 ppm, indicating a low DO value from the standard level (4.0 to 6.0 ppm for domestic and 5.0 ppm for fish culture) for all stations excluding S1 (CP). The values of BOD were between 18.98 and 50.81 ppm, indicating a higher condition than the expected value of BOD (6.0 ppm for fish culture and 10.0 ppm for irrigation). The temperatures of water varied from 26.28 to 32.19oC, indicating standard temperatures (20 to 30oC) for aquatic creatures except for S2 (DP, CP, and MP), S3, S7 (DP and CP), S5 (DP), and S6 (DP). The average transparency values maintained the standard limits (≤15.75 inches) for aquatic organisms. The hardness values were 26.0~214.04 ppm, indicating without S1, S2, S3 (DP and CP), S7 (DP) under the acceptable limits. Finally, the turbidity values indicate a higher condition than the standard limit (10 NTU, Nephelometric turbidity units). According to the investigation, the water quality of the Turag River mostly exceeds acceptable limits. It is, therefore, urging water managers to do constant monitoring to reduce the level of pollution of the Turag River.

Published on 2021

Abstract:Goal 4 of Sustainable Development Goal (SDG) is about inclusive and equitable quality education to accomplish by 2030. Among ten targets of goal 4, target 4.c is to ensure a substantial supply of qualified and trained teachers. Signatory nations agreed to provide adequate teacher training through local initiative and international cooperation. National progress of the target achievements is monitored by pre-specified indicators. This study analyzes the five accepted global indicator values of five consecutive years from 2013 to 2017 in Bangladesh. It also critically examines the national priority targets set to accomplish step-by-step at the end of three 5-year national plans by 2020, 2025 and 2030. Setting achievable and competitive targets to ultimately attain the SDG goals is crucial. This exploratory research inspects secondary data from dependable sources. Cubic spline interpolation is used for filling up the missing values in the series to draw the findings for a meaningful interpretation. A set of recommendations is made on discussions for the national policy makers and stakeholders pertaining to the revision process of the National Priority Targets at the end of first 5-year phase from 2016 to 2020.

Published on 2021

Abstract:While the use of machine learning algorithms in the irrigation sector is not a new approach, the method of applying machine learning algorithms in the irrigation sector in terms of minimizing the wastage of water is new in Bangladesh. Irrigation of any crops is heavily dependent on the groundwater source in our country. To meet the goal of precious agriculture, it is a matter of necessity that we effectively find a novel approach to address the issue of water wasting during irrigation and ensure the proper use of the water sources. The origin of our research is based on this issue where we have applied decision tree and random forest regressor to build a model that is assisting us to irrigate a precise amount of water during harvesting season. Reference Crop Evapotranspiration (ETo) and Crop Coefficient (Kc) are the parameters to calculate the water need for a particular crop. The Hargreaves method is used to find out the Reference Crop Evapotranspiration (ETo) by importing a python-based library named PyEto. To maximize the use of our dataset, we logically fragmented our dataset into two sets providing 180 instances each. A respective logical fragment contains the Crop Coefficient (Kc) value of Tomato crops of its four different growing stages. The multiplication result between Reference Crop Evapotranspiration (ETo) and Crop Coefficient (Kc) compute the target variable that is, Crop Water Needs (ETCrop). The data split in 90:10 ratio to train and test the model respectively. Our model provides significantly higher accuracy after comparing the training and testing of the data. The high accuracy of our model will lead to irrigating the exact amount of water required to harvest tomato crops and save the unnecessary wastage of the water.

Published on 2021

Abstract:In pre-independence and post-independence Bangladesh, the idea of nominating an appropriate language as Medium of Instruction (MOI) has primarily focused on two languages: Bengali (Mother language) and English (Second Language). This study explored the contributions of Bengali and English as MOI in the tertiary level of education in Bangladesh taking viewpoints of the stakeholders into consideration. A qualitative approach was followed to conduct the study where 30 participants from 2 universities, 1 public and 1 private, were selected as sample. Dissecting a wide range of views from the participants regarding the impact of Bengali and English as MOI, the study found that both the languages as MOI had significant arguments in favor of and at the same time against them. While English as MOI has a considerable upper hand in the internalization of education in this globalized era, Bengali, a legitimate contributor to the nationalistic identity, is still holding it high in the local market. Based on the findings, this study argues that giving priority to the needs of specific students and being flexible enough in terms of choosing MOI should be the first consideration rather than fixing a particular language as the MOI for everyone.

Published on 2021

Abstract:The Turag, one of the major peripheral rivers of Dhaka city, has become highly polluted due to the discharge of effluent from some point and non-point sources. To identify the impact of the point source for the river pollution, wastewater has been tested from a discharge point adjacent to the International University of Business Agriculture and Technology (IUBAT) campus, and at the same time, water samples from the river Turag have been tested for consecutive seven months. The test results of the present study and the test results of other studies show that the different point sources are significantly polluting the Turag. It has been found that the point- source adjacent to IUBAT does not satisfy wastewater quality standards to discharge into inland waterbody as per the guideline of the Department of Environment (DoE), Bangladesh. Total suspended solids (TSS), biochemical oxygen demand (BOD), dissolved oxygen (DO), and chemical oxygen demand (COD) level of the wastewater sample was found as 209.57±122.25 mg/l, 394.66±34.75 mg/l, 0.00 mg/l and 736.8 ±239.65 mg/l, respectively, which were beyond the water quality standard. On the other hand, quality of water of the river Turag itself does not satisfy the standards of DoE. The water pollution indicating parameters like TSS, BOD5, DO, and COD levels of the Turag water were found as 189.97±98.21 mg/l, 53.49±12.33 mg/l, 0.26±0.56 mg/l and 84.8 ±11.75 mg/l, respectively, which is beyond the standard to use as feed water in water supply systems both in domestic and industrial, to use for recreational activities, fisheries, or irrigation purposes. Proper treatment of effluent before discharging can save the Turag from pollution. There is scope for resource recovery from wastewater if a holistic approach to waste management is adopted.

Published on 2020

Abstract: The perception of inward remittance flow-led economic growth is framed mostly for cross-country scenarios; however, the country-specific causal link between migration, remittances, and economic growth is little explored. This study examines the migration-remittance-growth linkage for Bangladesh using time-series data from 2001 to 2017 and the Vector Autoregression (VAR) framework. The study identifies one-way negative causality on migration arising from both remittances and economic growth. The study does not find any significant causality between higher economic growth and remittances, nor from migration on economic growth or migration on remittance. Thus, the study suggests that higher economic growth or higher remittance inflow may discourage migration in the long run. Hence, a higher level of income through faster economic growth may end up with a lower level of inward remittance growth. Proper long-term policy design is required to handle such a situation

Published on 2020

Abstract:A wide range of academic literature confirms the harm of rising levels of NPL on macroeconomic performance (for example, GDP growth, unemployment rate, and inflation rate). The core objective of this paper is to identify the macroeconomic determinants which explain the changes in the NPL ratio. The determinants will serve as a guideline for policymakers to design present and future safeguards against rising NPL ratio in the financial sector. Fifteen developing countries were considered for the period ranging from 2008 to 2017. Using the fisher type ADF test, all the macroeconomic variables were tested for unit-root. Afterward, the System GMM Estimation was used to investigate the relationship between macroeconomic variables and the NPL ratio. The inflation and Lending rate become statistically insignificant once lags were introduced to the model. The GDP growth rate and the one period lagged NPL ratio have a statistically significant impact on the NPL ratio in all model specifications.

Published on 2020

Abstract: This paper represents the corrosion behavior of silicon-based ceramics composed of silicon, aluminum, magnesium, and iron in HCl and Jarul leaf juice intending to find a suitable solution that makes minimum corrosion. Four different solutions of HCl of Ph value of 0.86, Jarul leaf juice of Ph value of 4.97, 60% HCl with 40% Jarul leaf juice of Ph value of 1.13, and 40% HCl with 60% Jarul leaf juice of Ph value of 1.31 were prepared. At first, the weights of the four samples of silicon-based ceramics were taken. Then they were kept in four different solutions for 30 days. Again, the weight of each sample was measured and compared with the weight of before 30 days, the weight difference was found. The effect of corrosion on the surface of each material was studied. Finally, morphological analyses of samples are performed by scanning electron microscopy.

Published on 2020

Abstract:Rapid population growth along with contamination of water is adversely affecting Dhaka’s water supply and making it difficult to meet the city’s water demand. Proper measures should be implemented to overcome the abuse of water. This study has been accomplished using the fuzzy analytical hierarchy process (FAHP) to evaluate the residential water conservation practice in Dhaka city, Bangladesh. This research revealed various courses of action to improve residential water conservation. First, an index system was developed. Then, a pair-wise comparison was used to produce weights using Saaty’s rating scale for each criterion. In this study, the highest assessment index value for multi-level AHP fuzzy comprehensive evaluation was 0.40, which can be termed as “Fair” based on the fuzzy comment set. The evaluated results exhibit a new opportunity for water resource management, planning, and design, and a means to target water abuses.

Published on 2020

Abstract:The paper represents job satisfaction and employee engagement in the Kindergarten School. The purpose of the paper is to measure job satisfaction among kindergarten school teachers in Bangladesh and then to investigate the relationship between job satisfaction and employee engagement. To conduct the study, three hypotheses have been developed and tested with multiple regression and correlation from the SPSS output. To collect data, a survey questionnaire was developed and filled up by 456 teachers from 114 kindergarten schools in Bangladesh. The paper explores that absence of Hygiene factors, such as Remuneration, Working condition, Administrative policy cause higher job dissatisfaction and lack of Motivators, such as Advancement, Recognition cause lower job satisfaction among kindergarten school teachers. The paper also tests the relationship status between job satisfaction and employee engagement which describes a strong positive relationship. Consequently, most of the school teachers who are the respondents of this study are considerably dissatisfied as well as disengaged.

Find more...
Journal Image

The IUBAT Review is a multidisciplinary academic journal that the editors intend to publish annually. The office of the journal is located at the International University of Business Agriculture and Technology, the first non-government university in Bangladesh.

IUBAT Review is peer-reviewed. The editors accept submissions from authors in Bangladesh and elsewhere. The articles should generally analyze current issues relevant to management, social sciences, engineering, agriculture, science and technology.