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

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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Chromosome Structural Rearrangements in Onion(Allium cepa L.)through Induced Mutation

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Journal of Agricultural Science and Technology(B) 2019年第2期9卷 110-118页

作者： Moutoshi Chakraborty mohammad abul kalam Azad Md Ashraful Haque Department of Genetics and Plant Breeding Bangladesh Agricultural UniversityMymensingh 2202Bangladesh Plant Breeding Division Bangladesh Institute of Nuclear AgricultureBangladesh Agricultural University CampusMymensingh 2202Bangladesh

This study investigated whether there was any chromosomal structural rearrangement in individual chromosome of two mutant lines of onion viz.,BP2-100/1 and BP2-100/2 compared to the parental chromosomes which may explain the seed to seed productions of the mutants in the same winter season even at late planting in January unlike the parent *** chromosome preparation was made from the root tip by haematoxylin *** deviation in the number of chromosomes was found in the mutant lines but the length of the individual chromosomes was longer than that of their parent *** of the eight pairs of homologous chromosomes,seven pairs were metacentric and one pair submetacentric in the parent“BARI Piaz-2”;five pairs were metacentric and three pairs submetacentric in BP2-100/1;and three pairs were metacentric,three pairs submetacentric and two pairs of subtelocentric in BP2-100/*** was assumed that the length extension of the chromosomes and rearrangements in the arm ratio were due to gamma irradiation that induced duplication and or translocations of some regions of the *** research is needed to identify the induced genes and to establish relationships of the genes with the modified seed production behavior of the mutants.

关键词： Onion mutation chromosome karyotype idiogram.

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Design and Implementation of an IoT Based Remote Health Monitoring System

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Journal of Computer and Communications 2024年第11期12卷 37-52页

作者： Taslim Arefin abul kalam Azad Department of Computer Science and Engineering Jahangirnagar University Dhaka Bangladesh

Considering the quality of life, manpower, and expenditure, an IoT-based health monitoring system has been proposed and implemented. Devices are placed on the human body to collect data, which is then uploaded to an online data server. Specialist doctors can access this data as needed, allowing them to assess the patient’s initial condition and provide advice at any time. This approach enhances the quality and reach of health services. The module, designed and installed using modern technology, minimizes latency and maximizes data accuracy while reducing delay and battery drain. An accompanying app motivates public acceptance and ease of use. Various sensors, including ECG, SpO2, gyroscope, PIR, temperature-humidity, and BP, collect data processed by an Arduino microcontroller. Data transmission is handled by a WiFi module, with ThingSpeak and Google Sheets used for data processing and storage. The system has been fully tested, and patient data from two hospitals compared with the proposed model shows 97% accuracy.

关键词： IoT Patient Monitoring MPU Sensors Accuracy Delay Power Consumption

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Antioxidant compounds and minerals in tomatoes by Trichodermaenriched biofertilizer and their relationship with the soil environments

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Journal of Integrative Agriculture 2017年第3期16卷 691-703页

作者： Yeakub Khan Manjurul Haque abul Hossain Molla Mizanur Rahman mohammad Zahangeer Alam Department of Environmental Science Faculty of Agriculture Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur 1706 Bangladesh Department of Soil Science Faculty of Agriculture Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur 1706 Bangladesh

The experiment was conducted to evaluate the efficacy of Trichoderma-enriched biofertilizer（BioF/compost）on antioxidants and minerals in ripe tomatoes and soil health improvements in terms of nutrient availability and microbial *** study was comprised of six treatments：control（zero input）;recommended doses of NPK（135.5,45.6 and 22.9 kg ha^-1,respectively）;100%BioF/compost;75%BioF/compost＋25%N;50%BioF/compost＋50%N;and 25%BioF/compost＋75%*** recommended doses of P and K were used in the last three *** was found that the application of 100%BioF/compost enhanced plant growth,leaf greenness,and produced 12.9%higher yield compared to the recommended doses of NPK and other *** contents（P,K,Ca,Mg,Cu,Fe,Mn and Zn）in tomato roots,shoots and fruits and antioxidant compounds,i.e.,ascorbic acid,β-carotine,and lycopene were increased significantly in fruits fertilized with100%BioF/*** high efficiency of Trichoderma compost might be the result of its potential of nutrient solubilization and harboring soil ***,BioF/compost increased soil fertility and favored growth of microbes in the rhizosphere which ultimately contributed to higher yield,antioxidant,and mineral concentrations in ***,Trichoderma-enriched biofertilizer may reduce application of chemical fertilizers and therefore,can be considered as a noble practice in sustainable agriculture.

关键词： Trichoderma harzianum T22 minerals .antioxidants nutrient availability microbial populations

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Low Ca^2＋ Content and Ca^2＋/Na^＋ Ratio in Leaf Tissues Determine Salinity Tolerance in Spanish Type Groundnut （Arachis hypogeal L.）

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Journal of Agricultural Science and Technology(B) 2018年第2期8卷 71-84页

作者： mohammad Akram Hossain Chowdhury mohammad Shahidur Rashid Bhuyia mohammad Shah-e-Alam mohammad abul kalam Azad Department of Agricultural Extension Ministry of Agriculture Dhaka 1215 Bangladesh Department of Genetics and Plant Breeding Sher-e-Bangla Agricultural University Sher-e-Bangla Nagar Dhaka 1207 Bangladesh Department of Genetics and Plant Breeding Bangladesh Agricultural University Mymensingh 2202 Bangladesh Plant Breeding Division Bangladesh Institute of Nuclear Agriculture (BINA) BAU Campus Mymensingh 2202 Bangladesh

The study was performed with seven groundnut varieties/genotypes and F1s derived from crossing in all possible combinations without reciprocal among the mentioned varieties/genotypes. The objective was to assess whether low Ca2＋ content and Ca2＋/Na＋ ratio of leaf tissue or stem tissue determine salinity tolerance in terms of economic yield （kernel yield） in groundnut. It revealed that the varieties, “Binachinabadam-6”, “Binachinabadam-5” and the F1 G2 × G3 were most tolerant based on kernel yield under 8 dS/m and 10 dS/m salinity stresses. These two tolerant varieties and the F1 also showed lower Ca2＋ and Ca2＋/Na＋ ratios in leaf tissue, which indicated lower Ca2＋ and Ca2＋/Na＋ ratio of leaf tissue determined salinity tolerance in terms of kernel yield in Spanish type groundnut. These findings could be applied in future plant breeding applications for screening salt tolerant Spanish type groundnut genotypes.

关键词： Salinity tolerance groundnut Arachis hypogea Ca2+ content in leaf tissues Ca2+/Na+ ratio in leaf tissue.

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Intrauterine growth retardation affects liver bile acid metabolism in growing pigs:effects associated with the changes of colonic bile acid derivatives

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Journal of Animal Science and Biotechnology 2023年第2期14卷 711-728页

作者： Yang Liu Mdabul kalam Azad Wanghong Zhang Liang Xiong Francois Blachier Zugong Yu Xiangfeng Kong Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process Key Laboratory of Agro‑Ecological Processes in Subtropical RegionInstitute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125HunanChina College of Veterinary Medicine Nanjing Agricultural UniversityNanjing 210095JiangsuChina UMR PNCA Universite Paris-SaclayINRAE75005 AgroParisTechParisFrance.

Background:Intrauterine growth retardation(IUGR)is associated with severely impaired nutrient metabolism and intestinal development of *** previous study found that IUGR altered intestinal microbiota and metabolites in the ***,the consequences of IUGR on bile acid metabolism in pigs remained *** present study aimed to investigate the bile acid metabolism in the liver and the profile of bile acid derivatives in the colon of grow-ing pigs with IUGR using bile acid targeted ***,we determined correlations between colonic microbiota composition and metabolites of IUGR and normal birth weight(NBW)pigs at different growth stages that were 7,21,and 28-day-old,and the average body weight(BW)of 25,50,and 100 kg of the NBW ***:The results showed that the plasma total bile acid concentration was higher(P<0.05)at the 25 kg BW stage and tended to increase(P=0.08)at 28-day-old in IUGR *** hepatic gene expressions related to bile acid synthe-sis(CYP7A1,CYP27A1,and NTCP)were up-regulated(P<0.05),and the genes related to glucose and lipid metabolism(ATGL,HSL,and PC)were down-regulated(P<0.05)at the 25 kg BW stage in IUGR pigs when compared with the NBW *** metabolomics analysis showed that 29 bile acids and related compounds were detected in the colon of *** colonic concentrations of dehydrolithocholic acid and apocholic acid were increased(P<0.05),while isodeoxycholic acid and 6,7-diketolithocholic acid were decreased(P<0.05)in IUGR pigs,when compared with the NBW pigs at the 25 kg BW ***,Spearman’s correlation analysis revealed that colonic Unclassified_[Mogi-bacteriaceae],Lachnospira,and Slackia abundances were negatively correlated(P<0.05)with dehydrolithocholic acid,as well as the Unclassified_Clostridiaceae abundance with 6,7-diketolithocholic acid at the 25 kg BW ***:These findings suggest that IUGR could affect bile acid and glucolipid metabolism in growing pigs,especially at th

关键词： Bile acid metabolism Glucolipid metabolism Intestinal microbiota Intrauterine growth retardation Pigs

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Application of a distributed verification in Islamic microfinance institutions:a sustainable model

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Financial Innovation 2022年第1期8卷 2196-2207页

作者： Peter Wanke M.Kabir Hassan Md.abul kalam Azad Md.Azizur Rahman Naznin Akther COPPEAD Graduate Business School Federal University of Rio de JaneiroRua Paschoal Lemme355Rio de Janeiro 21949-900Brazil Department of Economics and Finance University of New OrleansNew OrleansLA 70148USA Department of Business and Technology Management Islamic University of TechnologyGazipur 1704Bangladesh Department of Business Administration Faculty of Business&EntrepreneurshipDaffodil International UniversityDhakaBangladesh

The literature gap in microfinance paradox of double bottom line(financial performance ***)has always been an interesting area of *** paper proposes a theoretical model most suitable for Islamic Microfinance Institutions(MFIs)which enables Islamic MFIs’to operate together with the existing financial models compliant with Islamic Shariah *** model is based on a distributed verification/decision-making process that might be realized(but not necessary)through *** the available distributed verification techniques,blockchain technology is an attractive emerging computing paradigm due to its decentralized,immutable,shared,and secure data structure *** model proposes three significant ***,sharing information through blockchain will allow a transparent network in MFI operations,which will raise confidence for donors resulting in a causal effect of a relatively lower profit rate to be charged by the ***,the consensus mechanism will enable risk-sharing,a character of Islamic finance;thus,the MFIs will operate without any collateral for low-risk ***,the double bottom line of MFIs’long-lasting paradox would be *** for practical implication of this proposed model,the causal impact of lower cost investment by the lenders would increase social welfare because of no collateral and no initial wealth *** proposed model proposes a credit rationing approach where profit can be *** collateral will be used when calculating the creditworthiness of a borrower.

关键词： Blockchain Islamic microfinance Double bottom line Distributed verification

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Adaptation Strategy with Climate Induced Salinity Disaster in the Coastal Area of Bangladesh

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American Journal of Climate Change 2022年第4期11卷 284-306页

作者： Md. Oliur Rahman abul kalam Mohammed Azad Rahman Office of The Deputy Commissioner Gaibandha Bangladesh UNDP Dhaka Bangladesh

This study examined explanatory responses to saline-water intrusion in the coastal areas of Bangladesh which are renowned for providing ecological and livelihood services. The goal of this study is to look at the different adaption strategies which coastal people have been using to deal with the growing salty water incursion. To this end, the researchers conducted a survey on 100 (one hundred) coastal people (Female 37% & Male 63%) chosen at a random basis from two unions (the lowest tier of local government) namely Perikhali union of Rampal upazila under Bagerhat district and Banishanta union of Dacope upazila under Khulna District at the southwest coast of Bangladesh. Agriculture (30%) and fisheries (27%) were the main livelihoods of the respondents. While looking at their existing problems due to salinity, it is seen that around 65% people are to move 3 - 5 (three to five) kilometres to get water access, low yield from agriculture (47%) and conversion of agricultural land (25%), acute crisis of grazing land (50%), damaged housing of cattle (30%) and fisheries (92%) are being affected due to salinity. Along with the impact, locals also have adaptation like seasonal water storage (31%), desalination (30%) and rainwater harvesting (26%) for water related impact. For agriculture, farmers are rotating crops (32%), cultivating saline tolerant varieties and others have switched from rice cultivation to other crops (30%) and cultivating saline tolerant variety (32%). In livestock, farmers are using better management practices (39%) followed by complete shift of livestock rearing (20%) to other businesses. Shifting from freshwater fish to marine water fish and crab/prawn cultivation (38%) found the most adaptation practices by the communities. For long term resilience to salinity induced disaster, collection of safe water (93%), quality seed (57%), disease control (47%) in livestock and quality hatchlings are the main barriers identified by the communities. For strengthen

关键词： Adaptation Climate Change Salinity

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Design and Optimization of Photonic Crystal Fiber for Liquid Sensing Applications

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Photonic Sensors 2016年第3期6卷 279-288页

作者： Md. Faizul Huq ARIF Kawsar AHMED Sayed ASADUZZAMAN Md. abul kalam AZAD Department of Information and Communication Technology (ICT) Mawlana Bhashani Science and TechnologyUniversity (MBSTU) Tangail-1902 Bangladesh Department of Material and Metallurgical Engineering (MME) Bangladesh University of Engineering and TechnologyUniversity (BUET) Dkaka-l O00 Bangladesh

This paper proposes a hexagonal photonic crystal fiber （H-PCF） structure with high relative sensitivity for liquid sensing; in which both core and cladding are microstructures. Numerical investigation is carried out by employing the full vectorial finite element method （FEM）. The analysis has been done in four stages of the proposed structure. The investigation shows that the proposed structure achieves higher relative sensitivity by increasing the diameter of the innermost ring air holes in the cladding. Moreover, placing a single channel instead of using a group of tiny channels increases the relative sensitivity effectively. Investigating the effects of different parameters, the optimized structure shows significantly higher relative sensitivity with a low confinement loss.

关键词： Photonic crystal fiber (PCF) liquid sensor microstructure core sensitivity confinement loss

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Comparison of different energy saving lights using solar panel

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Frontiers in Energy 2016年第4期10卷 466-472页

作者： Huzaifa MUBARAK Saad Bin abul KASHEM Sarawak Campus Swinbume University of Technology Kuching93350 Malaysia

The recent trend in light emitting diode or LED lighting applications and their claimed energy saving capabilities together with their overall attractiveness has us all convinced that they really are a greener alternative to the compact fluorescent lights or CFL. As convincing as it seems, the actual energy saving capabilities of LEDs are yet to be proven scientifically or at the least, on an empirical level when compared to CFLs. This paper tackles the issue with the use of a solar cell by evaluating the photovoltaic current and voltage generated by the solar cell subjected to each lighting system. Graphical representations are drawn and a conclusion is then reached based on the amount of power generation in the solar cells in order to determine the energy saving capabilities of each lighting system and its efficiency. From the result, it has been found that an LED is 3.7 times more power efficient than a CFL based light source of equal wattage.

关键词： CFL LED empirical solar lumens energysaving fluorescent

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