Papers by MD.AMINUL HAQUE
Mathematical Problems in Engineering
In this paper, trajectory planning and navigation control problems have been addressed for a mobi... more In this paper, trajectory planning and navigation control problems have been addressed for a mobile robot. To achieve the objective of the research, an adaptive PSO (Particle Swarm Optimization) motion algorithm is developed using a penalty-based methodology. To deliver the best or collision-free position to the robot, fitness values of the all-random-positioned particles are compared at the same time during the target search action. By comparing the fitness values, the robot occupies the best position in the search space till it reaches the target. The new work integrated with conventional PSO is varying a velocity event that plays a vital role during the position acquisition (continuous change in position during the obstacle negotiation with the communication through random-positioned particles). The obstacle-negotiating angle and positional velocity of the robot are considered as input parameters of the controller whereas the robot's best position according to the target posi...
RSC Advances
A novel molecule 5-bromo-2-hydroxy-N′-[(1E)-1-(thiophen-2-yl)ethylidene]benzohydrazide (L) has be... more A novel molecule 5-bromo-2-hydroxy-N′-[(1E)-1-(thiophen-2-yl)ethylidene]benzohydrazide (L) has been designed and synthesized. The sensing studies of L showed a ratio metric & turn-on-enhanced fluorescence and colorimetric response toward Fe3+ and Cu2+ ions respectively.
Royal Society Open Science
Zinc oxide nanoparticles (ZnO NPs) have been successfully prepared using Cocos nucifera leaf extr... more Zinc oxide nanoparticles (ZnO NPs) have been successfully prepared using Cocos nucifera leaf extract and their antimicrobial, antioxidant and photocatalytic activity investigated. The structural, compositional and morphological properties of the NPs were recorded and studied systematically to confirm the synthesis. The aqueous suspension of NPs showed an ultraviolet–visible (UV–Vis) absorption maxima of 370 nm, indicating primarily its formation. X-ray diffraction analysis identified the NPs with a hexagonal wurtzite structure and an average particle size of 16.6 nm. Fourier transform infrared analysis identified some biomolecules and functional groups in the leaf extract as responsible for the encapsulation and stabilization of ZnO NPs. Energy-dispersive X-ray analysis showed the desired elemental compositions in the material. A flower-shaped morphology of ZnO NPs was observed by scanning electron microscopy, with a grain size of around 15 nm. The optical properties of the NPs were...
Journal of Bangladesh Academy of Sciences
This study describes a straightforward protocol for synthesizing cupric oxide nanoparticles from ... more This study describes a straightforward protocol for synthesizing cupric oxide nanoparticles from the peel extract of Spondias mombin. The CuO NPs were produced in a basic H2O solution as cubic-shaped, homogenous nanoparticles with excellent peroxidase activity without taking any special precautions. The influence of the concentration of the peel extract, temperature as well as the synthesis medium on CuO NPs production has been investigated extensively. The typical UV-visible absorption maxima observed at wavelengths of 279 and 383 nm observed in spectrophotometry confirmed the formation of CuO NPs. Moreover, the homogeneity, shape (cubic), and size (approximately averaged ⁓31nm (29nm⁓38nm)) of the synthesized CuO nanoparticles under optimum conditions were confirmed through the SEM technique. Besides, its elemental compositions, capping agent, and crystallinity were investigated through EDS, FT-IR and XRD. Finally, in the presence of hydrogen peroxide (H2O2), the as-prepared CuO...
Nature Food
Evidence on what people eat globally is limited in scope and rigour, especially as it relates to ... more Evidence on what people eat globally is limited in scope and rigour, especially as it relates to children and adolescents. This impairs target setting and investment in evidence-based actions to support healthy sustainable diets. Here we quantified global, regional and national dietary patterns among children and adults, by age group, sex, education and urbanicity, across 185 countries between 1990 and 2018, on the basis of data from the Global Dietary Database project. Our primary measure was the Alternative Healthy Eating Index, a validated score of diet quality; Dietary Approaches to Stop Hypertension and Mediterranean Diet Score patterns were secondarily assessed. Dietary quality is generally modest worldwide. In 2018, the mean global Alternative Healthy Eating Index score was 40.3, ranging from 0 (least healthy) to 100 (most healthy), with regional means ranging from 30.3 in Latin America and the Caribbean to 45.7 in South Asia. Scores among children versus adults were generall...
Update Dental College Journal
Introduction: Lip and oral cavity cancer is the third and fifth most frequent cancer for men & wo... more Introduction: Lip and oral cavity cancer is the third and fifth most frequent cancer for men & women respectively in Bangladesh. Locoregional recurrence after primary surgery is common for oral cancer due to aggressive local invasion and metastasis. The objective of this study was to analyze the predictors of locoregional failure in a tertiary center hospital. Materials and Methods: A prospective cohort study was designed to analyze the presence of recurrences of OSCC patients after surgery. The purposive sampling technique was used to include patients in the study. Excision of the primary tumor was done with neck dissection followed by reconstruction with local or regional flap. The variables considered were demographic information, site, TNM stage at diagnosis, margin status, lymph node metastasis, perineural invasion, recurrence, and the adjuvant therapy used for disease control. Patients were followed up by hospital revisits or phone calls and necessary information was collected...
Communication in Biomathematical Sciences, 2021
Dengue is one of the major health problems in Bangladesh and many people are died in recent years... more Dengue is one of the major health problems in Bangladesh and many people are died in recent years due to the severity of this disease. Therefore, in this paper, a SIRS model for the human and SI model for vector population with saturated incidence rate and constant treatment function has been presented to describe the transmission of dengue. The equilibrium points and the basic reproduction number have been computed. The conditions which lead the disease free equilibrium and the endemic equilibrium have been determined. The local stability for the equilibrium points has been established based on the eigenvalues of the Jacobian matrix and the global stability has been analyzed by using the Lyapunov function theory. It is found that the stability of equilibrium points can be controlled by the reproduction number. In order to calculate the infection rate, data for infected human populations have been collected from several health institutions of Bangladesh. Numerical simulations of var...
Journal of Molecular Docking, 2021
Acetamides (S30A1 and S30) were synthesized from benzo[d]thiazol-2-amine and 6-nitrobenzo[d]thiaz... more Acetamides (S30A1 and S30) were synthesized from benzo[d]thiazol-2-amine and 6-nitrobenzo[d]thiazol-2-amine by direct use of acetic acid instead of acetylating agents. The usual acetylating agents, acetic anhydride and acetyl chloride are very unstable especially because of their high sensitivity to environmental moisture. Thus, acetylation by direct use of acetic acid was searched as an alternative approach for synthesizing acetanilides. In this study, acetamides were synthesized with a yield of 88% and 82% respectively. The synthesized compounds were then screened for antifungal activity. At a concentration of 300 µg/disc, S30A1 showed 18 mm, 28 mm, 20 mm, and 16 mm zone of inhibitions against Penicillium notatum, Candida albicans, Aspergillus flavus, and Aspergillus niger, respectively. The standard miconazole was used at 50 µg/disc concentration. An in silico analysis was done for the possible binding modes in the C. albicans N-myristoyltransferase enzyme.
Molecules, 2022
Polytopic organic ligands with hydrazone moiety are at the forefront of new drug research among m... more Polytopic organic ligands with hydrazone moiety are at the forefront of new drug research among many others due to their unique and versatile functionality and ease of strategic ligand design. Quantum chemical calculations of these polyfunctional ligands can be carried out in silico to determine the thermodynamic parameters. In this study two new tritopic dihydrazide ligands, N’2, N’6-bis[(1E)-1-(thiophen-2-yl) ethylidene] pyridine-2,6-dicarbohydrazide (L1) and N’2, N’6-bis[(1E)-1-(1H-pyrrol-2-yl) ethylidene] pyridine-2,6-dicarbohydrazide (L2) were successfully prepared by the condensation reaction of pyridine-2,6-dicarboxylic hydrazide with 2-acetylthiophene and 2-acetylpyrrole. The FT-IR, 1H, and 13C NMR, as well as mass spectra of both L1 and L2, were recorded and analyzed. Quantum chemical calculations were performed at the DFT/B3LYP/cc-pvdz/6-311G+(d,p) level of theory to study the molecular geometry, vibrational frequencies, and thermodynamic properties including changes of ∆H...
Abstract— Wireless Body Area Network (WBAN) is an<br> uprising innovation for short-range r... more Abstract— Wireless Body Area Network (WBAN) is an<br> uprising innovation for short-range remote communication<br> inside, on or circular the body, within the fundamental for<br> therapeutic applications. In this paper, an adjuvant scheme has<br> been proposed to increase the node mobility in WBAN. Dead<br> nodes, path loss, low residual energy, and less throughput are<br> the main causes for decreasing mobility of nodes. A comparative<br> study has been done between the existing and proposed multihop<br> protocol using the Genetic Algorithm and Fuzzy logic. This<br> proposed model has been simulated in MATLAB simulator.<br> Keywords—WBAN, Node Mobility, Genetic Algorithm, Fuzzy<br> logic.6
Water Resources Research, 2020
The volume of water stored in seasonal wetlands is a fundamental but difficult to measure variabl... more The volume of water stored in seasonal wetlands is a fundamental but difficult to measure variable for developing a physical understanding of wetland behavior. For seasonal wetlands that are a major source of water for rice and fish production, this physical understanding is key to planning for water‐food security and ecosystem services. This study quantified variations in volumetric storage for the numerous seasonal wetlands of northeastern Bangladesh, locally known as “haors.” These haors receive transboundary runoff from densely vegetated and mountainous terrain in India and face persistent monsoonal cloud cover as they become full. We estimated volumetric storage for 13 haors by using extensive remote sensing data on water surface extent and elevation that was complemented with citizen‐contributed gauge data. Assuming a trapezoidal bathymetry, an area‐volume relationship was developed for selected haors. This relationship was assumed to be valid for extrapolating volumetric esti...
Journal of King Saud University - Engineering Sciences, 2021
Waste management has become a new challenge for the construction industries since rapid urbanizat... more Waste management has become a new challenge for the construction industries since rapid urbanization is taking place worldwide. Ceramic waste is one such material which is being originated from construction sites and industries, imposing a significant risk to the environment due to its non-biodegradable nature. With the goal of waste utilization, this study aims to predict the compressive and splitting tensile strength of concrete made with waste Coarse Ceramic aggregate (CCA) and Nylon Fiber (NF) by using two distinct machine learning algorithms, namely, Support Vector Machine (SVM) and Gradient Boosting Machine (GBM). A comprehensive data set for testing and training the models containing 162 records of compressive and splitting tensile strength test results were considered from nine mix proportions. For training the dataset, parameters like cement content, sand content, stone content, ceramic content, nylon fiber content, curing duration, and concrete strength were taken as input variables. The predicted strengths obtained from the SVM and GBM based models are found to be in close agreement with the experimental results. In terms of coefficient of determination (R 2), GBM showed significantly better result for both compressive strength (e.g., SVM Overall R 2 = 0.879 & GBM Overall R 2 = 0.981) and tensile strength (e.g., SVM Overall R 2 = 0.706 & GBM Overall R 2 = 0.923) prediction. Furthermore, based on the statistical accuracy measures like the mean absolute error (MAE), mean square error (MSE), root mean square error (RMSE), it has been observed that GBM has yielded much better performance compared to SVM in predicting the mechanical strength of concrete.
This paper correspond to Wavelet based Electroencephalogram (EEG) signal analysis to become aware... more This paper correspond to Wavelet based Electroencephalogram (EEG) signal analysis to become aware of small abnormalities to endure any emergency medical application. The EEG is a very decisive and effectual tool for brain monitoring system. This work aspires to be evidence for an improved and more effective way of monitoring the brain and its disruptions. It also provides an enormous opportunity to analyze the brain signal more intensely considering the different environments. As the current analyzing technologies are not sufficient enough to deal with the sudden abnormalities or even very small abnormalities, the proposed method offers an effective way of analyzing the data more precisely. Because of the availability of statistical information of the EEG data, extracting various statistical parameters along with the other processing techniques including filtering, the proposed method can monitor the brain as well as detect the smallest possible abnormalities even in the harsh condi...
Global Journal of Medical Research, 2021
Background: A sudden outbreak of a novel coronavirus disease (covid-19) pandemic has thrown chall... more Background: A sudden outbreak of a novel coronavirus disease (covid-19) pandemic has thrown challenges in searching out a truly effective drug or vaccine to minimize the heavy toll of mortality and morbidity worldwide. But still, now humanity is lagging in finding such an agent that can be labelled as absolutely efficacious. Methods: We conducted a prospective observational cohorttrial of injectable Remdesivir in the case of hospitalized patients presenting with features of respiratory tract infection and diagnosed as COVID-19 pneumonia by RT-PCR for COVID-19 test and categorized as severe COVID-19 cases as pernational guidelines criteria. Patients were treated with injectable Remdesivir (200mg on day 1, followed by 100 mg daily for up to 05 additional days) along with other standard treatment protocols. The primary outcome of the study was the time to recovery, defined by improvement in clinical and laboratory parameters whether discharge from the hospital or not (hospitalization f...
SSRN Electronic Journal, 2021
Oxford AstraZeneca (Covishield) vaccine is the 1st vaccine administered in Bangladesh to prevent ... more Oxford AstraZeneca (Covishield) vaccine is the 1st vaccine administered in Bangladesh to prevent the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The antibody response after 1st and 2nd doses of this vaccine was assessed in health care workers of Dhaka Medical College Hospital, Bangladesh. Blood sample was collected from healthcare workers (teachers, clinicians and medical staff) after 28 days of 1st vaccination and 14 days after 2nd vaccination. Quantitative postvaccination antibody responses were measured using the chemiluminescent immunoassay, ADVIA Centaur (Siemens, Munich, Germany) SARS-CoV-2 IgG (COV2G) assay (output index was ≥1.00). Vaccine related antibody was found in 126 (41%) participants after 1st dose of AstraZeneca vaccine. After 2nd dose of vaccine, reactive level of antibody was found in 172 (93%) participants. Antibody responses were significantly higher in previously infected participants compared to participants who had no history of previous COVID-19 after 1st dose (51.92±50.85 vs 23.67±41.07, p=0.001) as well as 2nd dose of vaccine (64.12±97.76 vs 35.04±64.84, p=0.001). No difference in antibody response was observed among participants with or without comorbidities. Oxford AstraZeneca Covishield vaccine induces a strong immune response after two doses of vaccination.
Journal of Southwest Jiaotong University, 2021
In recent years, App-Based Transportation System (ABTS) like Ride Sharing (Uber, Patho) has becom... more In recent years, App-Based Transportation System (ABTS) like Ride Sharing (Uber, Patho) has become popular day by day. For our daily life, a rickshaw (a 3-wheeled vehicle usually for one or two passengers that one man pulls) is most important for a short distance. If we add this vehicle to our ABTS system, it will be very much helpful for us, specifically for the rainy season in Bangladesh. On heavy rainy days, in our city Dhaka, other vehicles like CNG, cars, and bikes become unused because roads go underwater. However, the man who pulled the rickshaw can serve this condition. It is more important than the conventional rickshaw is unable to provide such service properly. In this regard, we are proposing an App-Based Rickshaw (ABR), which is convenient to get over distance through the internet. To do this, we have collected data through close questionnaires’ from several types of people. In contrast, collected data are based on a text document. So our aim is to Sentiment Analysis (S...
Journal of Hydroinformatics, 2020
A computationally efficient early warning technique is developed for forecasting flash floods dur... more A computationally efficient early warning technique is developed for forecasting flash floods during the pre-monsoon season that are associated with a complex topography and transboundary runoff in northeastern Bangladesh. Locally conditioned topographic and hydrometeorological observations are key forcings to the modeling system that simulate the hydrology and hydraulic processes. The hydrologic model is calibrated and validated using satellite-based observations to estimate the correct amount of transboundary and mountainous inflow into the flash flood-prone plains. Inflow is then forecasted using precipitation forecast from a global numerical weather prediction (NWP) system called the Global Forecasting System (GFS). The forecasted inflows serve as the upstream boundary conditions for the hydrodynamic model to forecast the water stage and inundation downstream in the floodplains. A real-time in-situ data-based error correction methodology is applied to maintain the skill of the s...
Asian Journal of Education and Social Studies, 2019
The present study was conducted to find out the current situation of domestic violence and women ... more The present study was conducted to find out the current situation of domestic violence and women autonomy in northern Bangladesh. In this study we found socio-economic and demographic condition, abusive status and women autonomy of employed women in northern Bangladesh. A total of 160 employed women from different district of northern Bangladesh were selected through cluster sampling as a sample of this research. The results found that only 45.6% women maintain non abusive relationship with their husband. Whereas about 53.1% women were moderately abuse and 1.3% women was seriously abuse. This was a critical situation in terms of women violence. Result obtained that about 83.1% women take permission to go outside the residence, 76.9% women take permission to visit their relatives or friends, 38.8% women take permission to go the local health center and 45.0% women take permission to go the local market. That means their freedom of movement depends on their husband or family members. ...
Vascular health and risk management, 2018
Cardiovascular disease (CVD) is a group of conditions affecting the functioning of the heart or b... more Cardiovascular disease (CVD) is a group of conditions affecting the functioning of the heart or blood vessels and is one of the leading causes of death globally. Like other countries, CVD prevalence is also rising among the adults in Bangladesh. Epidemiological studies have shown not only a high CVD prevalence but also a significant increase in its prevalence in Bangladesh in the last few decades. To have a better understanding of the current CVD prevalence scenario, we conducted this systematic review and meta-analysis. Our objective was to assess the prevalence of CVD among the Bangladeshi adult population using evidence from the published scientific literature. Electronic databases such as MEDLINE, Embase and PubMed were searched. We also manually checked the references of all relevant publications that describe the prevalence of CVD in Bangladeshi adults. To pool the CVD prevalence, we used random-effects meta-analysis. We assessed heterogeneity using both the formal tests and t...
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Papers by MD.AMINUL HAQUE