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Social Business in Bangladesh: A Study on Grameen Danone Shokti+ Yogurt

Agricultural Sciences 2022年第7期13卷 841-854页

作者： Zarin Tasnim Maruf Uddin Chowdhury mohammad ataur rahman mohammad Abul Monsur Department of Agricultural Finance & Banking Bangladesh Agricultural University Mymensingh Bangladesh Bangladesh Rice Research Institute Gazipur Bangladesh

Social business is becoming popular worldwide as a sustainable and innovative solution to tackling pressing social problems. The Grameen Danone Food Ltd. (GDFL) Shokti+ yogurt business was chosen as a social business case study. The study described GDFL Shokti+ yogurt production, pricing, and distribution process, elucidated consumers’ perception of the Shokti+ yogurt, identified the major problems faced by the consumers, and proposed probable solutions to popularize the yogurt among the consumers. The study’s objectives were achieved using descriptive statistics based on a quantitative survey of 60 consumers. The study found that Shokti+ yogurt is distributed primarily through four channels: modern model, urban trade, rural trade, and direct trade. The study revealed that non-poor households consume more Shokti+ yogurt than poor households. The findings showed that about 78% and 95% of respondents were satisfied with the yogurt quality and availability, respectively. About 17% of respondents perceived that Shokti+ yogurt is superior to regular yogurt. However, about 58% of respondents claimed that the price is higher than the amount and quality offered. Excessive liquidity, increased price, and lack of trust in the nutritional quality of yogurt were some major problems identified by the consumers. The study proposed certain recommendations such as maintaining the consistency of the yogurt, increasing the amount of yogurt sold, making the yogurt more affordable for poor consumers, and raising awareness about its nutritional benefits for popularizing Shokti+ yogurt in Bangladesh.

关键词： Social Business Grameen Danone Food Limited Yogurt Bangladesh

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Impact of industrial effluent on growth and yield of rice(Oryza sativa L.) in silty clay loam soil

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Journal of Environmental Sciences 2015年第4期27卷 231-240页

作者： mohammad Anwar Hossain Golum Kibria Muhammad Mustafizur rahman mohammad Mizanur rahman Abul Hossain Molla mohammad Mostafizur rahman mohammad Khabir Uddin Department of Environmental Sciences Jahangirnagar University Department of Soil Science Bangabandhu Sheikh Mujibur Rahman Agricultural University Department of Bioenvironmental Science Bangabandhu Sheikh Mujibur Rahman Agricultural University

Degradation of soil and water from discharge of untreated industrial effluent is alarming in Bangladesh. Therefore, buildup of heavy metals in soil from contaminated effluent, their entry into the food chain and effects on rice yield were quantified in a pot experiment. The treatments were comprised of 0, 25%, 50%, 75% and 100% industrial effluents applied as irrigation water. Effluents, initial soil, different parts of rice plants and post-harvest pot soil were analyzed for various elements, including heavy metals. Application of elevated levels of effluent contributed to increased heavy metals in pot soils and rice roots due to translocation effects, which were transferred to rice straw and grain. The results indicated that heavy metal toxicity may develop in soil because of contaminated effluent *** metals are not biodegradable, rather they accumulate in soils, and transfer of these metals from effluent to soil and plant cells was found to reduce the growth and development of rice plants and thereby contributed to lower yield. Moreover, a higher concentration of effluent caused heavy metal toxicity as well as reduction of growth and yield of rice, and in the long run a more aggravated situation may threaten human lives,which emphasizes the obligatory adoption of effluent treatment before its release to the environment, and regular monitoring by government agencies needs to be ensured.

关键词： Biomass Crop yield Heavy metal Industrial effluent Soil pollution

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Carbon mineralization in subtropical alluvial arable soils amended with sugarcane bagasse and rice husk biochars

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Pedosphere 2022年第3期32卷 475-486页

作者： mohammad Arifur rahman mohammad Abdul KADER mohammad JAHIRUDDIN mohammad Rafiqul ISLAM Zakaria mohammad SOLAIMAN Regional Agricultural Research Station(RARS) Bangladesh Agricultural Research Institute(BARI)Jamalpur 2000(Bangladesh) School of Agriculture GeographyEnvironmentOcean and Natural SciencesUniversity of South PacificApia 1343(Samoa) Department of Soil Science Bangladesh Agricultural University(BAU)Mymensingh 2202(Bangladesh) UWA School of Agriculture&Environment and the UWA Institute of Agriculture PerthWA 6009(Australia) School of Veterinary and Life Science Murdoch UniversityMurdochWA 6150(Australia)

Subtropical recent alluvial soils are low in organic carbon(C).Thus,increasing organic C is a major challenge to sustain soil *** amendment could be an option as biochar is a C-rich pyrolyzed material,which is slowly decomposed in *** investigated C mineralization(CO_(2)-C evolution)in two types of soils(recent and old alluvial soils)amended with two feedstocks(sugarcane bagasse and rice husk)(1%,weight/weight),as well as their biochars and aged biochars under a controlled environment(25±2℃)over 85 *** the recent alluvial soil(charland soil),the highest absolute cumulative CO_(2)-C evolution was observed in the sugarcane bagasse treatment(1140 mg CO_(2)-C kg^(-1)soil)followed by the rice husk treatment(1090 mg CO_(2)-C kg^(-1)soil);the lowest amount(150 mg CO_(2)-C kg^(-1)soil)was observed in the aged rice husk biochar ***,for the old alluvial soil(farmland soil),the highest absolute cumulative CO_(2)-C evolution(1290 mg CO_(2)-C kg^(-1)soil)was observed in the sugarcane bagasse treatment and then in the rice husk treatment(1270 mg CO_(2)-C kg^(-1)soil);the lowest amount(200 mg CO_(2)-C kg^(-1)soil)was in the aged rice husk biochar *** sugarcane bagasse and rice husk biochar treatments reduced absolute cumulative CO_(2)-C evolution by 10%and 36%,respectively,compared with unamended recent alluvial soil,and by 10%and 18%,respectively,compared with unamended old alluvial *** absolute and normalized C mineralization were similar between the sugarcane bagasse and rice husk treatments,between the biochar treatments,and between the aged biochar *** both soils,the feedstock treatments resulted in the highest cumulative CO_(2)-C evolution,followed by the biochar treatments and then the aged biochar *** absolute and normalized CO_(2)-C evolution and the mineralization rate constant of the stable C pool(K_(s))were lower in the recent alluvial soil compared with those in the old alluvial *** biochar

关键词： aged biochar biochar amendment charland CO_(2)emission CO_(2)-C evolution recent alluvial soil soil organic carboon soil organic matter

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A New Handover Management Model for Two-Tier 5G Mobile Networks

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Computers, Materials & Continua 2022年第6期71卷 5491-5509页

作者： mohammad Arifin rahman Khan Mohammed Golam Kaosar mohammad Shorfuzzaman Kire Jakimoski Department of Computer Science and Engineering Bangladesh UniversityDhaka1207Bangladesh Discipline of IT Media and CommunicationsMurdoch UniversityPerthWA6150Australia Department of Computer Science College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia Faculty of Informatics AUE-FON UniversitySkopjeRepublic of North Macedonia

There has been an exponential rise in mobile data traffic in recent times due to the increasing popularity of portable devices like tablets,smartphones,and *** rapid rise in the use of these portable devices has put extreme stress on the network service providers while forcing telecommunication engineers to look for innovative solutions to meet the increased *** solution to the problem is the emergence of fifth-generation(5G)wireless communication,which can address the challenges by offering very broad wireless area capacity and potential cut-power *** application of small cells is the fundamental mechanism for the *** use of small cells can enhance the facility for higher capacity and ***,it must be noted that small cells deployment will lead to frequent handovers of mobile *** the importance of small cells in 5G,this paper aims to examine a new resource management scheme that can work to minimize the rate of handovers formobile phones through careful resources allocation in a two-tier ***,the resource management problem has been formulated as an optimization issue thatwe aim to overcome through an optimal *** find a solution to the existing problem of frequent handovers,a heuristic approach has been *** solution is then evaluated and validated through simulation and testing,during which the performance was noted to improve by 12%in the context of handover ***,this model has been observed to be more efficient as compared to the existing model.

关键词： Two-tier mobile networks small cell densification management of mobility handover cost average throughput power consumption

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Financial viability and conservation role of betel leaf based agroforestry:an indigenous hill farming system of Khasia community in Bangladesh

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Journal of Forestry Research 2009年第2期20卷 131-136页

作者： Mizanur rahman mohammad Mahfuzur rahman Mahmuda Islam Dept. of Forestry and Environmental Science Shahjalal University of Science and Technology Institute of Forestry and Environmental Science University of Chittagong

A study was conducted to investigate the cultural and financial management techniques of betel leaf based agroforestry system practiced in or near homegardens of Khasia community in Jaintapur Upazila in the district of Sylhet, *** Khasia is an educated community where 100% of Khasia people were literate, a stunning fact for this ethnic community in *** average family size in the study area was 7.68, with a ration of male and females of 141:*** homegardens of the Khasia are rich in species composi-tion, which 15 timber species, 22 horticultural species, six medicinal species, 13 annual crops including leafy vegetables, seven species of spices and five species of bamboo were identified along with betel *** Khasia is an economically prosperous community with the minimum family incomes of Tk 4 000 per month(Tk.70=1 US Dollar).Betel leaf based agroforestry is very common being a prevalent source of *** 95.45% of the households are involved in betel leaf *** mean annual income from one hectare of betel leaf plantation was estimated to be *** practice was proven to be a profitable business where the benefit cost ratio was calculated to be ***, the species composition in the betel leaf plantation area(the forest area once utilized by Khasia for shifting cultivation) was found to be very promising to play the significant role in conservation of biological diversity making the practice a sus-tainable agroforestry system.

关键词： agroforestry betel leaf conservation homegarden Khasia

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Decoding molecular mechanisms:brain aging and Alzheimer's disease

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Neural Regeneration Research 2025年第8期20卷 2279-2299页

作者： Mahnoor Hayat Rafay Ali Syed Hammad Qaiser mohammad Uzair Khalid Al-Regaiey Roaa Khallaf Lubna Abdullah Mohammed Albassam Imdad Kaleem Xueyi Wang Ran Wang Mehwish SBhatti Shahid Bashir Atta-ur-rahman School of Applied Biosciences(ASAB) National University of Sciences and Technology(NUST)IslamabadPakistan Department of Biotechnology Quaid-i-Azam UniversityIslamabadPakistan Department of Biological Sciences Faculty of Basic&Applied SciencesInternational Islamic University Islamabad(IIUI)IslamabadPakistan Department of Bioengineering King Fahd University of Petroleum and MineralsDhahranSaudi Arabia Department of Physiology College of MedicineKing Saud UniversityRiyadhSaudi Arabia Department of Neurology Neuroscience CenterKing Fahad Specialist HospitalDammamSaudi Arabia Department of Mental Health Neuroscience CenterKing Fahad Specialist HospitalDammamSaudi Arabia Department of Biosciences Commission on Science and Technology for Sustainable Development in the South(COMSATS University)IslamabadPakistan Department of Psychiatry The First Hospital of Hebei Medical UniversityShijiazhuangHebei ProvinceChina Mental Health Institute of Hebei Medical University ShijiazhuangHebei ProvinceChina Department of Neurobiology and Behavior University of CaliforniaIrvineCAUSA Neuroscience Center King Fahad Specialist Hospital DammamDammamSaudi Arabia

The complex morphological,anatomical,physiological,and chemical mechanisms within the aging brain have been the hot topic of research for *** aging process alters the brain structure that affects functions and cognitions,but the worsening of such processes contributes to the pathogenesis of neurodegenerative disorders,such as Alzheimer's *** these observable,mild morphological shifts,significant functional modifications in neurotransmission and neuronal activity critically influence the aging *** these changes is important for maintaining cognitive health,especially given the increasing prevalence of age-related conditions that affect *** review aims to explore the age-induced changes in brain plasticity and molecular processes,differentiating normal aging from the pathogenesis of Alzheimer's disease,thereby providing insights into predicting the risk of dementia,particularly Alzheimer's disease.

关键词： Alzheimer’s disease brain aging cognitive health dementia molecular mechanisms neuronal activity neuroplasticity neurotransmission

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Flow and erosion at a bend in the braided Jamuna River

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International Journal of Sediment Research 2012年第4期27卷 498-509页

作者： mohammad Nazim UDDIN Md.Munsur rahman Department of Civil Engineering Dhaka University of Engineering and Technology Institute of Water and Flood Management Bangladesh University of Engineering and Technology

The braided Jamuna River frequently changes its *** the secondary channel in a braided river acts as a single thread meandering *** the present study an attempt has been made to investigate the flow patterns and to estimate the rate of bank erosion in a bend along the Jamuna *** three dimensional(3D) flow velocities were measured using Acoustic Doppler Current Profiler(ADCP).It is found that the near bank velocity is amplified by 1.1 to 1.3 times as compared with the section averaged velocity.A dominant secondary current is found in the upstream *** evolution as well as decay of the secondary current is not as clear as it is found in the laboratory *** is revealed from the analysis of the flow process that the causes of higher rate of erosion at the study bend are the oblique flow near bankline,six times amplified shear velocity than critical shear velocity near bankline and the secondary current which acts as a sediment transporting agent from the outer bank towards the inner bank or the sand *** on the flow processes,a simplified erosion prediction model is developed and applied to estimate the rate of erosion at a selected *** the predicted results have been compared with the observed data at the bend and all the available data at other bends along the Jamuna River.

关键词： Braided Jamuna River Bend Flow pattern Erosion prediction model

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Climate change impact assessment on three major crops in the north-central region of Bangladesh using DSSAT

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International Journal of Agricultural and Biological Engineering 2018年第4期11卷 135-143页

作者： Atikur rahman mohammad Abdul Mojid Selina Banu Department of Irrigation and Water Management Bangladesh Agricultural UniversityMymensingh-2202Bangladesh Department of Agricultural and Industrial Engineering Hajee Mohammad Danesh Science and Technology UniversityDinajpur-5200Bangladesh

The potential consequences of climate change emanated from global warming are very alarming;the greatest concern is the potentially disastrous consequences on crop agriculture and food security in many parts of the *** is a country highly susceptible to climate change,but information in this regard is still *** study investigated the effects of climate change on three major crops-wheat,potato and rice-in the north-central region of *** climate change scenarios,A2 and B2,of the Intergovernmental Panel on Climate Change(IPCC)were generated by employing MAGICC/SCENGEN model together with the observed climate data of the *** growth and yield of the crops were simulated using DSSAT CERES-Wheat,SUBSTOR-Potato and CERES-Rice models under the present and projected future changing climatic *** a predicted 5.32℃ increase in temperature in the year 2100,the yield of wheat,rice and potato would decrease by 47.6%,67.8%and 38.6%,*** increased temperature would accelerate physiological maturity of the crops as reflected by their reduced length of growing season(LGS)by 1.20%to 18.5%.The reduced LGS would reduce seasonal evapotranspiration(ET)of the crops by shortening time-span for ET *** to dominant yield reduction over ET reduction,the water use efficiency(WUE)for grain/tuber and biomass yields would decrease with the changing *** reduced crop yields are an indicative of a potential future risk of food security in *** results of this study can therefore guide to adopt coping mechanisms in the light of climate change to ensure future food security of the country.

关键词： climate change DSSAT MAGICC/SCENGEN model CERES model SUBSTOR model growing season length crop-water use

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Impedance learning adaptive super-twisting control of a robotic exoskeleton for physical human-robot interaction

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IET Cyber-Systems and Robotics 2023年第1期5卷 108-121页

作者： Brahim Brahmi mohammad Habibur rahman Maarouf Saad Department of Electrical Engineering College AhuntsicMontrealQuebecCanada Department of Mechanical Engineering University of Wisconsin-MilwaukeeMilwaukeeWIUSA Department of Electrical Engineering École de Technologie SupérieureMontrealQuebecCanada

This study addresses two issues about the interaction of the upper limb rehabilitation robot with individuals who have *** first step is to estimate the human's target position(also known as TPH).The second step is to develop a robust adaptive impedance control mechanism.A novel Non-singular Terminal Sliding Mode Control combined with an adaptive super-twisting controller is being developed to achieve this *** combination's purpose is to provide high reliability,continuous performance tracking of the system's *** proposed adaptive control strategy reduces matched dynamic uncertainty while also lowering chattering,which is the sliding mode's most glaring *** proposed TPH is coupled with adaptive impedance control with the use of a Radial Basis Function Neural Network,which allows a robotic exoskeleton to simply track the desired impedance *** validate the approach in real-time,an exoskeleton robot was deployed in controlled experimental circumstances.A comparison study has been set up to show how the adaptive impedance approach proposed is better than other traditional controllers.

关键词： adaptive control impedance model robust control super twisting controller upper limb rehabilitation robot

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Extraction and characterization of alumina nanopowders from aluminum dross by acid dissolution process

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International Journal of Minerals,Metallurgy and Materials 2015年第4期22卷 429-436页

作者： Saifur rahman Sarker Zahangir Alam Rakibul Qadir M A Gafur mohammad Moniruzzaman Department of Applied Chemistry and Chemical Engineering University of Dhaka Pilot Plant & Project Development Centre (PP& PDC) Bangladesh Council of Scientific and Industrial Research (BCSIR) BCSIR Laboratories Dhaka

A significant amount of aluminum dross is available as a waste in foundry industries in Bangladesh. In this study, alumina was ex- tracted from aluminum dross collected from two foundry industries situated in Dhamrai and Manikgang, near the capital city, Dhaka. Alu- minum dross samples were found to approximately contain 75wt% A1203 and 12wt% SIO2. An acid dissolution process was used to recover the alumina value from the dross. The effects of various parameters, e.g., temperature, acid concentration, and leaching time, on the extrac- tion of alumina were studied to optimize the dissolution process. First, AI（OH）3 was produced in the form of a gel. Calcination of the AI（OH）3 gel at 1000℃, 1200℃, and 1400℃ for 2 h produced O-AlcOa, （t~＋O）-A1203, and u-alumina powder, respectively. Thermal charac- terization of the AI（OH）3 gel was performed by thermogravimetric/differential thermal analysis （TG/DTA） and differential scanning calo- rimetry （DSC）. The phases and crystallite size of the alumina were determined by X-ray diffraction analysis. The dimensions of the alumina were found to be on the nano level. The chemical compositions of the aluminum dross and alumina were determined by X-ray fluorescence （XRF） spectroscopy. The microstructure and morphology of the alumina were studied with scanning electron microscopy. The purity of the alumina extracted in this study was found to be 99.0%. Thus, it is expected that the obtained alumina powders can be potentially utilized as biomaterials.

关键词： aluminum dross alumina nanoparticles acid dissolution calcination X-ray fluorescence analysis

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