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This study aims to take a theoretical look at the arena of digital libraries. To that end, it is necessary to investigate the requirements of a digital library to establish in the departments of higher learning institutions in Bangladesh. Similarly, this study looks at the level of necessity, especially in engineering programs such as Civil Engineering, from an economic perspective. This is a precautious measure during an emergency period (state of affairs in-country) and contributes to the Sustainable Teaching and Learning (STL) in higher learning institutions for effectiveness and efficiency in developing human skill resources. For this study, a digital library for Civil Engineering is proposed to develop at the higher learning institution. The outcome of this study may apply to the discipline of Civil Engineering at International Islamic University Chittagong (IIUC) as a pilot program and then focus on diversified areas such as structure, materials, and construction; transportation; geotechnical; environment; and water resources. There are several exceptional features of the digital library. This library will address specific learning and content needs for several different beneficiary groups; the collections will exploit contemporary multimedia techniques to encourage active online STL library collections, which will focus on learning outcomes for lifelong groups. As an integral part of the digital library, a hosting portal is needed to develop to provide easy access to the collections in highlighted diversified areas.

The effect of cypermethrin pesticide on juvenile rohu (Labeo rohita) was determined in captive condition. Live and healthy rohu (average initial weight 21g) were exposed to five concentrations of Cypermethrin 0.63, 0.13, 0.025, 0.005, 0.001 ppm and one control group (no pesticide) with two replications for each treatment. The mean temperature and pH in the experimental tanks were 27.53±0.41ºC and 7.22±0.013 ppt, respectively. The highest growth recorded in control tank was 0.2g per week, where as nosignificant growths were found in 0.001 ppm and 0.005 ppm concentration. Rohu reared in the 0.13 ppm had the lowest growth. The median lethal concentration values were found at 0.025, 0.005 and 0.001 ppm for 9th, 17th and 20th day, respectively. Behavioral patterns were observed in both lethal 0.63, 0.13 ppm and sub lethal concentration 0.025 ppm. L. rohita in toxic media exhibited erratic and darting movements with imbalanced swimming activity, which might be due to the malfunctioning of neurotransmitters, followed by hyper and hypo opercula activity, loss of equilibrium and mucus secretion all over the body were observed

The study was carried out to identify muscle protein patterns and gut protease activity of rohu (Labeo rohita), catla (Catla catla), climbing perch (Anabas testudineus) and spotted snakehead (Channa punctatus). Twelve percent Polyacryleamide substrate SDS-PAGE was done to visualize the activity of the enzyme after casein hydrolysis and protein pattern of the species. Three alkaline proteases of different molecular weight were observed in rohu, two in catla, five in climbing perch and four in spotted Snakehead from the zymogram. This revealed that the existence of alkaline protein in the alimentary tract of respective species. Fourteen distinct protein bands in rohu, fifteen in catla, sixteen in climbing perch and nineteen in soptted snakehead were visualized from the electrophoretic patterns of fish muscle extract. From the result, it is assumed that heavy molecular weight myosin and low molecular weight actin were prominent in all the experimental species.

An experiment was conducted at Bangabandhu Academy for Poverty Alleviation and Rural Development (BAPARD) Agricultural Farm, Kotalipara, Gopalganj during December, 2019 to May, 2020 to find out the vegetative growth and yield performance of three BARI tomato varieties viz. BARI Tomato-11, BARI Tomato-14 and BARI Tomato-15. The plant height of BARI Tomato- 11,BARI Tomato-14, BARI Tomato-15 were 8.21cm, 7.17cm, 8.82cm, 8.73cm, 7.75cm, 9.37cm, 15.40cm, 13.24cm, 14.40cm respectively at 0 DAT, 10 DAT, 20 DAT with significantly increase 20 DAT except 0 DAT and 10 DAT. First flowering of BARI Tomato-11, BARI Tomato-14 and BARI Tomato-15 was 39 DAT, 40 DAT and 41 DAT which was statistically identical. Number of fruits per plant and weight of individual fruit of BARI Tomato-11, BARI Tomato-14, BARI Tomato-15 were 142.96, 34.92, 30.95 and 10.85gm, 78.5gm, 59.9gm respectively. In case of number of fruits per plant, BARI Tomato-11 showed the maximum but weight of individual fruit was very low because of size and shape was very small. Fruit yield of BARI Tomato-11, BARI Tomato-14 and BARI Tomato-15 were51.67 t/ha, 91.33 t/ha and 61.67 t/ha, respectively. The present study concluded that BARI Tomato-14 is more suitable for this area. Res. Agric., Livest. Fish.9(1): 37-42, April 2022

Creating intelligent information processing systems for monitoring complex technical objects and systems is an important task today. This paper presents the principles and models for creating systems of this class. The decision-making process in intelligent information-measuring monitoring systems is described. The article presents a model of intelligent monitoring system and a model of decision-making in intelligent monitoring systems. The presented model of decision-making in intelligent monitoring systems allows estimating the efficiency of their functioning. The article proposes a structural scheme reflecting the sequence of decision-making tasks.

Background: Chronic kidney disease (CKD) is a worldwide public health problem. It is usually associated with anemia and prevalence of anemia increases progressively with worsening CKD. Objective: To find out the association of anemia with different stages of CKD. Materials and Methods: This cross-sectional study was conducted in the department of physiology in Mymensingh medical college, Bangladesh over a period of one year from January to December 2016. A total number of 174 subjects were enrolled in this study among which 87 patients and 87 healthy participants. On the basis of inclusion and exclusion criteria study subjects were divided into case and control group. Hemoglobin concentrations in the blood were measured in all study subjects by using auto-analyzer. Result: Hemoglobin concentration in the blood was decreased in both male and female CKD patients which were 9.55±1.13 gm/dl and 9.11±0.95 gm/dl respectively and result was statistically significant (p

An experiment was conducted at Bangabandhu Academy for Poverty Alleviation and Rural Development (BAPARD) Agricultural Farm, Kotalipara, Gopalganj during 01 January, 2021 to 20 May, 2021 to find out the vegetative growth and yield performance of sweet corn at different combinations of organic and chemical fertilizers. Five treatments were selected where T0 was only cowdung (Control), T1 was Cowdung+ Urea+ TSP+ MoP, T2 was Cowdung+ Urea+ TSP+ MoP+ Gypsam, T3 was Cowdung+ Urea+ TSP+ MoP+ Gypsam+ Zinc sulphate and T4 was Cowdung+ Urea+ TSP+ MoP + Gypsam+ Zinc sulphate+ Boric acid. Plant height and number of leaves at 25 DAS, 50 DAS, 75 DAS and 100 DAS were significantly increased except number of leaves/plant at 25 DAS. Maximum stalk weight per plant (186.90gm), stalk yield (12.46 t/ha), ear height (84.47cm), weight per cob (111.62gm), Cob length (18.52cm), number of rows of seeds per cob (15.27), number of grain per cob (421.80), grain weight per cob(79.17gm) and 100 seed weight (18.77gm) were found in T4. But maximum shelling percentage (75.06) was found in T3. The highest grain yield and Stover yield were found were 5.28 t/ha and 14.32 t/ha respectively in T4. Maximum 233.63% yield was increased over control in case of using organic and inorganic fertilizers at optimum dose. However, it was evident from the present study that using of organic and inorganic fertilizers maximizes the vegetative growth and yield of sweet corn at experimental area of Gopalganj district in Bangladesh.

From November 18 to March 6, 2019, researchers at BAPARD Agricultural Farm in Kotalipara, Gopalganj, investigated the impact of fertilizers on lentil (Lens culinaris L.) production and yield components. This research will aid in determining the correct fertilizer dosage for lentil growing. As a consequence, fertilizer waste may be avoided, lentil yields can be raised, and farmers can profit financially. T1, T2, and T3 treatments were used, as well as BARI masur-6, BARI masur-7, and masur-9 variations. 45kg Urea, 90kg TSP, 45kg MoP, 55kg Gypsum, 03 kg Zinc Sulphate, and 5 tons of cow dung per acre were the suggested fertilizer dosages. The number of branches per plant, pods per plant, seed per pod, 100 seed weight (gm), and seed production (kg/ha) all rose. BARI masur-6, BARI masur-7, and BARI masur-9, respectively, measured 41.50 cm, 38.10 cm, 43.66 cm, and 27.80, 14.00, 12.80 cm in height and number of branches per plant. The greatest number of pods per plant, seed output (kg/ha.), and 100 seed weight (gm) were 74.20, 67.00, 41.00; 2.78, 2.51, 2.76; 2442.30, 2206.39, and 1665.72, respectively. However, the current study revealed that with the combined application of fertilizers, several growth indices and seed yield of lentil (Lens culinaris L.) increased progressively.

The scientists revise the heat transfer enhancement techniques time to time to achieve better performance and to obtain optimized designs of heat exchangers. The present study reviews the performance and techniques of heat transfer enhancement using various insert devices such as twisted tape and wire coil insert as well as completely different forms of other inserts like air-foil shape inserts, X-shaped twisted tape inserts, baffles and V-winglets inserts with various types of medium and nanofluids. According to the summary of recent significant researches on the heat transfer enhancement by using different types of inserts and combinations of these inserts with various nanofluids showed that insert can indicatively enhance the heat transfer rate by modifying its geometry or configurations like twist ratio, length ratio, pitch ratio, segmented tape, perforated tape, angle of arrangements and insert quantities and so on which caused a considerable impact on performance characteristics of heat transfer enhancement along with the pressure drop and friction factor. It is revealed through reviewing the related literature that the highest value of equivalence heat transfer enhancement is as maximum as 400%, 300% and 9% for the twisted tape insert with helical tube, the air foil shaped inserts and for the wire coil inserts, respectively when compared with the smooth tube. In the case of baffles in nanofluids, as maximum as 255% equivalence heat transfer enhancement could be achieved when compared with that of baffles without nanofluids.

Currency duplication also known as counterfeit currency is a vulnerable threat on economy. It is now a common phenomenon due to advanced printing and scanning technology. Bangladesh has been facing serious problem by the increasing rate of fake notes in the market. To get rid of this problem various fake note detection methods are available around the world and most of these are hardware based and costly. In the present paper an automated image-based technique is described for the detection of fake banknotes of Bangladesh. Security features of banknotes such as watermark, micro-printing and hologram etc. are extracted from the banknote images and then detection is performed using Support Vector Machine (SVM). Experimental results confirm the effectiveness of the proposed algorithm.