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| 1 | Flooding and its relationship with land cover change, population growth, and road density显示文摘Bangladesh experiences frequent hydro-climatic disasters such as flooding.These disasters are believed to be associated with land use changes and climate variability.However,identifying the factors that lead to flooding is challenging.This study mapped flood susceptibility in the northeast region of Bangladesh using Bayesian regularization back propagation(BRBP)neural network,classification and regression trees(CART),a statistical model(STM)using the evidence belief function(EBF),and their ensemble models(EMs)for three time periods(2000,2014,and 2017).The accuracy of machine learning algorithms(MLAs),STM,and EMs were assessed by considering the area under the curve—receiver operating characteristic(AUC-ROC).Evaluation of the accuracy levels of the aforementioned algorithms revealed that EM4(BRBP-CART-EBF)outperformed(AUC>90%)standalone and other ensemble models for the three time periods analyzed.Furthermore,this study investigated the relationships among land cover change(LCC),population growth(PG),road density(RD),and relative change of flooding(RCF)areas for the period between 2000 and 2017.The results showed that areas with very high susceptibility to flooding increased by 19.72%between 2000 and 2017,while the PG rate increased by 51.68%over the same period.The Pearson correlation coefficient for RCF and RD was calculated to be 0.496.These findings highlight the significant association between floods and causative factors.The study findings could be valuable to policymakers and resource managers as they can lead to improvements in flood management and reduction in flood damage and risks. | Mahfuzur Rahman Chen Ningsheng Golam Iftekhar Mahmud Md Monirul Islam Hamid Reza Pourghasemi Hilal Ahmad Jules Maurice Habumugisha Rana Muhammad Ali Washakh Mehtab Alam Enlong Liu Zheng Han Huayong Ni Tian Shufeng Ashraf Dewan | 2021 | Geoscience Frontiers2021,12,6: | 3 |
| 2 | Comparative investigation of the free radical scavenging potential and anticancer property of Diospyros blancoi(Ebenaceae)显示文摘Objective: To investigate the comparative effects of Diospyros blancoi(Ebenaceae)leaves(DBL), root bark(DBRB) and stem bark(DBSB) on free radicals and cancer.Methods: The polyphenol contents, antioxidant and free radical scavenging properties were determined using standard spectrophotometric methods. Cytotoxicity and anticancer activities were performed on brine shrimp nauplii and Ehrlich ascite carcinoma cells, respectively.Results: Among the extracts, DBSB showed the highest total antioxidant capacity and reducing capacity on ferrous ion. Based on 1,1-diphenyl-2-picrylhydrazyl and hydroxyl radical scavenging activities, DBSB showed(95.760 ± 0.343)% and(67.460 ± 2.641)%scavenging with IC50of(3.10 ± 0.17) and(50.00 ± 3.11) mg/m L, respectively. The IC50 values of standard butylated hydroxytoluene and catechin(CA) for 1,1-diphenyl-2-picrylhydrazyl and hydroxyl radicals were(8.50 ± 0.25) and(75.00 ± 0.14) mg/m L,respectively suggesting that DBSB had a significant(P < 0.05) radical scavenging activity than standards. In lipid peroxidation inhibition assay, the inhibitory activity of the extracts and the standard was in the following order: DBSB > DBRB > CA > DBL.Also, the phenolic [(139.91 ± 3.924) mg gallic acid equivalent/g] and flavonoid contents[(412.00 ± 16.70) mg catechin equivalent/g)] of DBSB were higher than that of other extracts. In addition, the DBSB showed the moderate cytotoxic and anticancer properties.Conclusions: Our results indicate that Diospyros blancoi stem bark had the significant highest antioxidant and free radical scavenging properties as well as moderate anticancer activity.Hence, we assume that the anticancer activity of this plant can be, at least in part, attributed to its content in phenolic compounds as well as its significant free radical scavenging properties. | Muhammad Ali Khan Mahbubur Rahman Nazmul Sardar Saiful Islam Arman Badrul Islam Jahangir Alam Khandakar Mamunur Rashid Golam Sadik AHM Khurshid Alam | 2016 | Asian Pacific Journal of Tropical Biomedicine2016,6,5: | 3 |
| 3 | Leonurus sibiricus L.(honeyweed):A review of its phytochemistry and pharmacology显示文摘Leonurus sibiricus is a herbaceous plant found in many countries in Asia and America.This plant is widely practiced as a remedy for the treatment of diabetes,menstrual irregularities,and bronchitis.The approval of therapeutic implications of any drugs depends on the well characterized mode of actions of the compounds.The bioactive compounds like diterpenes,triterpenes,flavonoids and phenolic acids in Leonurus sibiricus show analgesic,anti-inflammatory,anti-oxidant,anti-atherogenic and antihemorrhagic,anti-diabetic,anti-bacterial and allelopathic potency.Interestingly,the expression level of some genes is altered by the crude extract treatments,which are effective against cancers,diabetes and cardiovascular diseases where the molecular mechanisms are yet to be explored.Intriguingly,the extracts significantly induce nitric oxide production by endothelial nitric oxide synthase,a signaling molecule of vasodilation in combination with interferon-y indicating positive effect on atherosclerosis.Further investigations are required to unlock the effects of bioactive compounds found in extracts at clinical settings. | Abu Sayed AshraM Alam Shariful Islam Taif Ali Emdad Ullah Abu Zaffar Shibly Aslam Ali Mahdi Hasan-Olive | 2016 | Asian Pacific Journal of Tropical Biomedicine2016,6,12: | 2 |
| 4 | Characterization, prevalence and antibiogram study of Staphylococcus aureus in poultry显示文摘Objective: To reveal the presence of methicillin resistant Staphylococcus aureus(S. aureus)(MRSA) in poultry samples and to determine the antibiogram pattern against five antibiotics.Methods: Samples from different poultry farm of Chittagong city, Bangladesh were examined for S. aureus by different biochemical tests and confirmed as MRSA by identifying the presence of mec A gene using PCR. Antibiotic resistance pattern in S. aureus was determined by antibiotic disk diffusion method.Results: In this study, a total of 60 samples(30 from nasal swabs and 30 from cloacal swabs) were used, of which 54 were confirmed as S. aureus by different biochemical tests. Among these, 12 were confirmed as MRSA by detecting mec A gene using PCR.During antibiogram study, both nasal and cloacal samples showed the highest resistance against penicillin-G and the lowest resistance was observed against neomycin.Conclusions: Based on the present study, it can be said that different antibiotics are used extensively in poultry that leads to MRSA and is alarming for human health. | Yeasmeen Ali Md.Ashraful Islam Nazmul Hasan Muzahid Mohd.Omar Faruk Sikder Md.Amzad Hossain Lolo Wal Marzan | 2017 | Asian Pacific Journal of Tropical Biomedicine2017,7,3: | 2 |
| 5 | Phytochemical and in vitro biological investigations of methanolic extracts of Enhydra fluctuans Lour显示文摘Objective:To study the phytochemical and biological properties(antioxidant,anthelmintic and thrombolytic)of methanolic extracts of Enhydra fluctuant Lour.,a plant belonging to the Asteraceae family.Methods:The phytochemical evaluation was carried out by qualitative analysis.In vitro antioxidant activity of extract was studied using free radical scavenging assay,ability of reduction,total phenol and total flavonoid contents determination assays.The anthelmintic activity was determined using paralysis and death time of Pheretima posthuma(earthworm)and thrombolytic activity by clot disruption assay.Results:The phytochemical evaluation showed significant presence of flavonoids,triterpenes,carbohydrate,reducing sugars,saponins,phenols,diterpenes,protein and tannin.The antioxidant activity was found significant[IC_(50)(135.20±036)μg/mL]as compared to ascorbic acid[(130.00±0.76)μg/mL].The reducing power was increased with concentration.Total phenol and total flavonoid contents were(153.08±0.38)mg/mL and(172.04±0.56)mg/mL respectively.The paralysis and death time of earthworms for different concentrations of extract were determined and compared with albendazole.The results showed that 10 mg/mL of the crude extract had similar effect with albendazole.Additionally,the crude extract showed a concentration depended relationship with its anthelmintic property.The clot lysis activity of crude extract was compared to the standard streptokinase's clot lysis(40.13%)activity and found significant(31%).Conclusions:The study proves that the crude methanolic extract of Enhydra fluctuant Lour,has significant antioxidant,anthelmintic and thrombolytic activity containing wide range of phytochemicals. | Sourov Kuri Mustahsan Billah S.M.Masud Rana Zannatul Naim Mahmodul Islam Hasanuzzaman Ramjan Ali Rana Banik | 2014 | Asian Pacific Journal of Tropical Biomedicine2014,4,4: | 2 |
| 6 | In vivo anticancer activity of vanillin semicarbazone显示文摘Objective:To evaluate the anticancer activity of vanillin semicarbazone(VSC) against Ehrlich ascites carcinoma(EAC) cells in Swiss albino mice.Methods:The compound VSC at three doses(5, 7.5 and 10 mg/kg i.p.) was administered into the intraperitoneal cavity of the EAC inoculated mice to observe its efficiency by studying the cell growth inhibition, reduction of tumour weight,enhancement of survival time as well as the changes in depleted hematological parameters. Allsuch parameters were also studied with a known standard drug bleomycin at the dose of 0.3 mg/kg(i.p.).Results:Among the doses studied, 10 mg/kg(i.p.) was found to be quite comparable in potency to that of bleomycin at the dose of 0.3 mg/kg(i.p.). The host toxic effects of VSC was found to be negligible.Conclusions:It can be concluded that VSC can therefore be considered as potent anticancer agent. | Shaikh M Mohsin Ali M Abul Kalam Azad Mele Jesmin Shamim Ahsan M Mijanur Rahman Jahan Ara Khanam M Nazrul Islam Sha M Shahan Shahriar | 2012 | Asian Pacific Journal of Tropical Biomedicine2012,2,6: | 2 |
| 7 | 5-Aminolevulinic acid alleviates herbicide-induced physiological and ultrastructural changes in Brassica napus显示文摘It is well known that application of 5-aminolevulinic acid(ALA) could promote the plant growth under abiotic stress in oilseed rape(Brassica napus L.). However, the specifics of its physiological and ultrastructural regulation under herbicide stress conditions are poorly understood. In the present study, alleviating role of ALA in B. napus was investigated under four levels of herbicide propyl 4-(2-(4,6-dimethoxypyrimidin-2-yloxy) benzylamino) benzoate(ZJ0273)(0, 100, 200 and 500 mg L–1) with or without 1 mg L–1 ALA treated for 48 or 72 h. Results showed that after 48 h of herbicide stress, the growth of rape seedlings was significantly inhibited with the successive increases of the ZJ0273 concentrations from 0 to 500 mg L–1, but this inhibition was obviously alleviated by exogenous application of ALA. However, when treatment time prolonged to 72 h, the recovery effects of ALA could not be evaluated due to the death of plants treated with the highest concentration of ZJ0273(500 mg L-1). Further, the root oxidizability and activities of antioxidant enzymes(superoxide dismutase, peroxidase and ascorbate peroxidase) were dramatically enhanced by the application of 1 mg L–1 ALA under herbicide stress. Therefore, plants treated with ALA dynamically modulated their antioxidant defenses to reduce reactive oxygen species(ROS) accumulation and malondialdehyde(MDA) content induced by herbicide stress. Additionally, exogenously applied ALA improved the ultrastructure's of chloroplast, mitochondria and nucleus, and induced the production of stress proteins. Our results suggest that ALA could be considered as a potential plant growth regulator for the improvement of herbicide tolerance through alleviation of the physiological and ultrastructural changes induced by the herbicide in crop production. | XU Ling Faisal Islam ZHANG Wen-fang Muhammad A Ghani Basharat Ali | 2018 | Journal of Integrative Agriculture2018,17,3: | 2 |
| 8 | STOP Questionnaire: A Tool to Screen Patients for Obstructive Sleep Apnea显示文摘 | Frances Chung Balaji Yegneswaran Pu Liao Sharon A. Chung Santhira Vairavanathan Sazzadul Islam Ali Khajehdehi Colin M. Shapiro | 2008 | Anesthesiology2008,,5: | 2 |
| 9 | Wind-induced response of tension leg platform显示文摘 | Ahmad S Islam N Ali A | 1997 | Journal of Wind Engineering and Industrial Aerodynamics1997,72,13: | 1 |
| 10 | New scaling criteria for in-situ combustion experiments显示文摘 | ISLAM M R ALI S M F | 1992 | Journal of Petroleum Science and Engineering1992,6,4: | 1 |
| 11 | Effect of a tumour - produced lipid - mobilizing factor on protein synthesis and degradation显示文摘 | Islam - Ali BS Tisdale MJ | 2001 | Br J Cancer2001,84,12: | 1 |
| 12 | Interactions of tropospheric CO2 and O3 enrichments and moisture variations on microbial biomass and respiration in soil 显示文摘 | Islam K R Mulchi C L Ali A A | 2000 | Global Change Biology2000,6,: | 1 |
| 13 | Status of noise pollution in mixed areas of Dhaka City: a GIS approach显示文摘 | HAQ M A ISLAM M M ALI M S | 2012 | Journal of Environmental Science and Natural Resources2012,5,1: | 1 |
| 14 | Wind-induced response of tension leg platform显示文摘 | Ahmad S Islam N Ali A | 1997 | Journal of Wind Engineering and Industrial Aerodynamics1997,72,13: | 1 |
| 15 | Evaluation of an improved algorithm for fetal QRS detection显示文摘 | Algunaidi MMS Ali MAM Islam MF | 2011 | Internation~d Journal of the Physical Sciences2011,6,2: | 1 |
| 16 | Application of wavelet transform and its advantages compared to Fourier transform显示文摘 | Sifuzzaman M Islam M R Ali M Z | 2009 | Journal of Physical Sciences2009,13,1: | 1 |
| 17 | Spatial distribution and source apportionment of heavy metals in soils of Gebeng industrial city, Malaysia显示文摘 | Mohammed Amjed Hossain Nasly M. Ali Mir Sujaul Islam H. M. Zakir Hossain | 2015 | Environmental Earth Sciences2015,,1: | 1 |
| 18 | Removal of total ammonia nitrogen (TAN), nitrate and total organic carbon (TOC) from aquaculture wastewater using electrochemical technology: A review显示文摘 | W.T. Mook M.H. Chakrabarti M.K. Aroua G.M.A. Khan B.S. Ali M.S. Islam M.A. Abu Hassan | 2011 | Desalination2011,,: | 1 |
| 19 | Wind-induced response of tension leg platform显示文摘 | Ahmad S Islam N and Ali A | 1997 | Journal of Wind Engineering and Industrial Aerodynamics1997,72,13: | 1 |
| 20 | A heuristics-based solution to the continuous berth allocation and crane assignment problem显示文摘 | Mohammad Hamdy Elwany Islam Ali Yasmine Abouelseoud | 2013 | Alexandria Engineering Journal2013,52,4: | 1 |