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| 1 | Gas chromatography-mass spectrometry analysis of different organic crude extracts from the local medicinal plant of Thymus vulgaris L显示文摘Objective:To isolate and analyze the chemical composition in different crude extracts of from the leaves of locally grown of Thymus vulgaris L(T.vulgaris)by gas chromatography-mass spectrometry(GC-MS).Methods:The shade dried leaves powder was extracted with methanol by using Soxhlet extractor.Methanol crude extracts of T.vulgaris and the derived fractions of hexane,chloroform,ethyl acetate and butanol were obtained.Results:Qualitative analyses of various organic crude extracts of T.vulgaris by using GC-MS showed that there were different types of high and low molecular weight compounds.Most of the isolated and identified compounds by GC-MS in the crude extracts are basically biologically important.Further,the T.vulgaris leaf possessed certain characteristics that can be ascribed to cultivation on a domestic plantation.The crude extracts were prepared from the powder leaves of T.vulgaris for respective compounds can be chosen on the basis of above GC-MS analysis.Conclusions:All the major compounds were identified and characterized by spectroscopic method in different organic crude extracts of T.vulgaris are biologically active molecules.Thus the identification of a good number of compounds in various crude extracts of T.vulgaris might have some ecological role. | Laila Salim Al Hashmi Mohammad Amzad Hossain Afaf Mohammed Weli Qasim Al-Riyami Jamal Nasser Al-Sabahi | 2013 | Asian Pacific Journal of Tropical Biomedicine2013，3，1： | 4 |
| 2 | Improved greenhouse cucumber production under deficit water and fertilization in Northern China显示文摘The objective of this study was to investigate the effects of different water and fertilizer applications on biomass,yield and fruit physical quality of greenhouse cucumber under drip irrigation.The experiment was conducted at Water Conservancy Research Institute,Shenbei District,Shenyang,Northern China during February-July,2016.Nine treatments were used in randomized block design consisted of three levels of water field capacity(FC)and urea-potash(N-K)fertilizer combinations:W1(65%of FC),W_(2)(75%of FC),W3(85%of FC)and N_(1)-K_(1)(285-305 kg/hm^(2)),N2-K2(420-435 kg/hm^(2)),N_(3)-K_(3)(530-565 kg/hm^(2)).Local farmers’conventional application of water(100%)and fertilizer(NPK)was considered as check(CK)for comparison.Data obtained was analyzed(ANOVA)to check the significant effect of treatments.The results revealed that,treatment W_(3)N_(2)K_(1) obtained highest cucumber yield of 129.99 t/hm^(2),while W_(1)N_(1)K_(1) recorded the lowest yield(113.29 t/hm^(2)),in which total amount of seasonal water applied ranges from 85.3 mm to 172.36 mm.The highest yield was obtained 0.5%greater than the CK yield(129.35 t/hm^(2)).The water and fertilizer application was significantly(p<0.001)influenced on cucumber yield.Moreover,the influence of water application was significantly(0.01 | Shaikh Abdullah Al Mamun Hossain Lixue Wang Haisheng Liu | 2018 | International Journal of Agricultural and Biological Engineering2018，11，4： | 3 |
| 3 | Phytochemical analysis and antioxidant profile of methanolic extract of seed, pulp and peel of Baccaurea ramiflora Lour.显示文摘Objective: To analyze the phytochemical constituents responsible for the plausible antioxidant effect of methanolic extract of the seed, pulp and peel of Baccaurea ramiflora Lour. Methods: Fresh seed, pulp, and peel of Baccaurea ramiflora fruits were extracted with methanol(MEBRse, MEBRpu, MEBRpe) and evaluated by phytochemical analysis for their content of innumerable metabolites(primary and secondary) viz. carbohydrates, alkaloids, glycosides, tannins, phenols, terpenoids, flavonoids, proteins, and fixed oils. The antioxidant efficacy was assessed through different assay methods viz. 2,2-diphenyl-1-picrylhydrazyl(DPPH) free radical scavenging activity, total antioxidant capacity(TAC) and reducing power capacity(RPC). Estimation of total phenolic content(TPC), and total flavonoid content(TFC) was also done to confirm the presence of these phytochemicals. Results: It was revealed from the phytochemical analysis of MEBRse that alkaloids, glycosides, carbohydrates, phenols, and flavonoids were present, while that of MEBRpu showed the existence of carbohydrates, proteins, alkaloids, glycosides, phenols, saponins, flavonoids, and fixed oils. Presence of carbohydrates, alkaloids, phenols, tannins, flavonoids, and terpenoids were found in the MEBRpe. A significant antioxidant activity was revealed by the MEBRpu [EC_(50):(27.612 ± 1.375) μg/mL], compared to MEBRpe, and MEBRse in DPPH assay. The ranking order for RPC was MEBRpu > MEBRpe > MEBRse respectively. The EC_(50) value of TAC of the MEBRpu, MEBRpe, and MEBRse were(25.107 ±0.744) μg/mL,(241.127 ± 7.463) μg/mL and(372.364 ± 11.030) μg/mL, respectively. Quantity of TPC and TFC were the highest in the MEBRpu(124.360 ± 2.078 mg GAE/g and 107.527 ±1.900 mg QRE/g extract) rather than MEBRpe and MEBRse extracts. Conclusions: This study suggests that MEBRpu has a significantly higher antioxidant property than MEBRpe and MEBRse. These extracts might be advantageous in prevention or decelerating the progress of different diseases related to oxidative-stress/damage. Moreover, detailed analysis of these extracts is required to identify the presence of promising compound(s) responsible for their antioxidant activity. | Md.Sahab Uddin Md.Sarwar Hossain Abdullah Al Mamun Devesh Tewari Md.Asaduzzaman Md.Siddiqul Islam Mohamed M.Abdel-Daim | 2018 | Asian Pacific Journal of Tropical Medicine2018，11，7： | 3 |
| 4 | Chemical composition of essential oils and in vitro antioxidant activity of fresh and dry leaves crude extracts of medicinal plant of Lactuca Sativa L.native to sultanate of Oman显示文摘Objective:To isolate and analyse the chemical composition in the essential oils and free radical scavenging activity of different crude extracts from the fresh and dry leaves of vegetable plants of Lactuca sativa L.(L.sativa).Methods:The essential oils and volatile chemical constituents were isolated from the fresh and dry leaves of L.sativa(lettuce)grown in Sultanate of Oman by hydro distillation method.The antioxidant activity of the crude extracts was carried out by well established free radical scavenging activity(DPPH)method.Results:About 20 chemical compounds of different concentration representing 83.07%and 79.88%respectively were isolated and identified by gas chromatography-mass spectroscopy in the essential oils isolated from the fresh and dry leaves asα-pinene(5.11%and 4.05%).γ-cymene(2.07%and 1.92%),thymol(11.55%and 10.73%),durenol(52.00%and 49.79%),α-terpinene(1.66%and 1.34%),thymol acetate(0.99%and 0.67%),caryophyllene(2.11%and 1.98%),spathulenol(3.09%and 2.98%).camphene(4.11%and3.65%),limonene(1.28%and 1.11%)representing these major chemical compounds.However,some other minor chemical constituents were also isolated and identified from the essential oil of lettuce including p-pinene,α-terpinolene,linalool,4-terpineol,α-terpineol,o-methylthymol,L-alloaromadendrene and viridiflorene.Conclusions:The chemical consliluents in the essential oils from the locally grown lettuce were identified in the following classes or groups of chemical compounds such as monoterpenes,sesquiterpenes volatile organic compounds and their oxygenated hydrocarbons.Therefore,the essential oils and the crude extracts from Omani vegetable species of lettuce are active candidates which would be used as antioxidant,antifungal or antimicrobial agents in new drugs preparation for therapy of infectious diseases. | Rahma Said Salim Al Nomaani Mohammad Amzad Hossain Afaf Mohammed Weli Qasim Al-Riyami Jamal Nasser Al-Sabahi | 2013 | Asian Pacific Journal of Tropical Biomedicine2013，3，5： | 3 |
| 5 | Free standing luminescent silicon quantum dots: evidence of quan turn confinement and defect related transitions 显示文摘 | RAY M HOSSAIN S M KLIE R F ea al | 2010 | Nanotechnology2010，21，50： | 1 |
| 6 | TDAG51 is induced by homocysteine, promotes detachment- mediated programmed cell death, and contributes to the cevelopment of atherosclerosis in hyperhomocysteinemia 显示文摘 | Hossain GS van Thienen JV Werstuck GH el al | 2003 | Biol Chem2003，278，30： | 1 |
| 7 | Redox-linked cell surface-oriented signaling for T-cell death 显示文摘 | Akhand A A Du J Liu W Hossain K Miyata T Nagase F et al | 2002 | Antioxid Redox Signal2002，4，： | 1 |
| 8 | Genetic deletion of NP1 prevents hypoxic-ischemic neuronal death via reducing AMPA receptor synaptic localization in hippocampal neurons显示文摘 | Al RM Hossain MA | 2013 | J Am Heart Assoc2013，2，00： | 1 |
| 9 | Predictors of hypotension after induction of general anesthesia显示文摘 | Reich DL Hossain S Krol M al | 2005 | Anesthesia & Analgesia2005，101，03： | 1 |
| 10 | platelet-derived growth factor-induced disruption of gap junctional commmication and phosphotylation of connexin43 involves protein kinase c and mitogen-activated protein kinase显示文摘 | Hossain MZ Ao P Boynton AL | 1998 | J Cell Physiol1998，176，2： | 1 |
| 11 | A new antimicrobial compound from the leaves of Dodonaea viscosa for infectious diseases显示文摘The main aim of this research work was to isolate and characterize the antimicrobial compounds that can be extracted from the leaves of Dodonaea viscosa(D.viscosa)and to assess their antimicrobial potency by established in-vitro agar diffusion method.The methanol extract was liquefied and fractioned by using a separatory funnel and organic solvents having different polarities.The agar diffusion technique was used to assess the antimicrobial potency of extracts and pure compounds against 5 g(+and-)microbial strains.Antimicrobial potency results showed that all extracts and isolated pure compounds provided significant antimicrobial potency against the applied microbial strains.The highest activity chloroform extract was analysed by column chromatography(CC)for the isolation of antimicrobial compounds.The structure of the isolated compounds was characterized based on 1D,2D NMR and MS spectra.In conclusion,purest compounds might be useful as a remedy for infectious diseases. | Basma Mubarak Hamed Al Bimani Mohammad Amzad Hossain | 2020 | Bioactive Materials2020，5，3： | 1 |
| 12 | Genetic Deletion of NP1 Prevents Hypoxic-Ischemic Neuronal Death Via Reducing AMPA Receptor Synaptic Localization in Hippocampal显示文摘 | Al Rahi M Hossain MA | 2013 | J Am Heart Assoc2013，112，： | 1 |
| 13 | TLR9mediated siRNA delivery for targeting of normal and malignant hu- man hematopoietic cells in vivo 显示文摘 | Zhang Q Hossain DM Nchat'v S el al | 2013 | Blood2013，，8： | 1 |
| 14 | Comparison of arterial elasticity measured in left and right arms using the HDI/PulsewaveTM CR-2000 Research System显示文摘 | Hossain AL Michael P Dena J | 2002 | Blood Pressure Monitoring2002，，： | 1 |
| 15 | High quality 1 kun thick CdTe absorber layers grown by magnetron sputtering for solar cell application 显示文摘 | ISLAM M A HUDA Q HOSSAIN M S ~t al | 2013 | Curr Appl Phys2013，13，： | 1 |
| 16 | Separate deprotonation reactions con- verge mechanistically for a new cyclization of benzyl 1-alkynyl sulfones显示文摘 | Hossain MS Schwan AL | 2011 | Org Lett2011，13，19： | 1 |
| 17 | Exact method for the error probability calculation of three di mensional signal constellations显示文摘 | Khabbazian M Hossain J Alouini M S et aL | 2009 | IEEE Transactions on Communications2009，57，4： | 1 |
| 18 | Rapid disruption of gap junc- tional communication and phosphorylation of connexin43 by plate- let-derived growth factor in T51 B rat liver epithelial ceils express- ing platelet-derived growth factor receptor 显示文摘 | Hossain MZ Ao P Boynton AL | 1998 | J Cell Physiol1998，174，1： | 1 |
| 19 | Production of Biochar for Soil Application:A Comparative Study of Three Kiln Models显示文摘Biochar has potentials for soil fertility improvement, climate change mitigation and environmental reclamation, and charred biomass can be deliberately incorporated into soil for long-term carbon stabilization and soil amendment. Many different methods have been used for biochar production ranging from laboratory to industrial scales. However, in countryside of developing countries,biomass is generally used for cooking but not charred. Biochar production techniques at farmer scale have remained poorly developed.We developed and tested biochar production kilns for farmers with a dimension of 50.8 cm × 38.1 cm(height × diameter), using three different setups for optimizing oxygen(O2) limitation and syngas circulation: airtight with no syngas circulation(Model I),semi-airtight with external syngas circulation(Model II) and semi-airtight with internal syngas circulation(Model III). A comparative assessment of these biochar production kiln models was made considering biochar pyrolysis time, fuel to biomass ratio, biochar to feedstock ratio and thermogravimetric index(TGI). Among the models, the best quality biochar(TGI = 0.15) was obtained from Model I kiln taking the longest time for pyrolysis(12.5 h) and the highest amount of fuel wood(1.22 kg kg-1biomass). Model III kiln produced comparatively good quality biochar(TGI = 0.11), but with less fuel wood requirement(0.33 kg kg-1biomass) and shorter pyrolysis time(8.5 h). We also tested Model III kiln in a three times larger size under two situations(steel kiln and pit kiln). The biochar to feedstock ratio(0.38) and quality(TGI = 0.14) increased slightly for the larger kilns. Quality of biochar was found to be mainly related to pyrolysis time. The costs for the biochar stove and pit kiln were US$ 65–77, while it was US$ 154 for the large size steel kiln. Model III kiln can potentially be used for both cooking and biochar production at farmer scale. | Shamim MIA Nijam UDDIN Shaikh Abdullah Al MAMUN HOSSAIN Ruhul AMIN Fatima Z.METE Tjisse HIEMSTRA | 2015 | Pedosphere2015，25，5： | 1 |
| 20 | A multi-purpose National Forest Inventory in Bangladesh:design,operationalisation and key results显示文摘Background:National forest inventory and forest monitoring systems are more important than ever considering continued global degradation of trees and forests.These systems are especially important in a country like Bangladesh,which is characterised by a large population density,climate change vulnerability and dependence on natural resources.With the aim of supporting the Government’s actions towards sustainable forest management through reliable information,the Bangladesh Forest Inventory(BFI)was designed and implemented through three components:biophysical inventory,socio-economic survey and remote sensing-based land cover mapping.This article documents the approach undertaken by the Forest Department under the Ministry of Environment,Forests and Climate Change to establish the BFI as a multipurpose,efficient,accurate and replicable national forest assessment.The design,operationalization and some key results of the process are presented.Methods:The BFI takes advantage of the latest and most well-accepted technological and methodological approaches.Importantly,it was designed through a collaborative process which drew from the experience and knowledge of multiple national and international entities.Overall,1781 field plots were visited,6400 households were surveyed,and a national land cover map for the year 2015 was produced.Innovative technological enhancements include a semi-automated segmentation approach for developing the wall-to-wall land cover map,an object-based national land characterisation system,consistent estimates between sample-based and mapped land cover areas,use of mobile apps for tree species identification and data collection,and use of differential global positioning system for referencing plot centres.Results:Seven criteria,and multiple associated indicators,were developed for monitoring progress towards sustainable forest management goals,informing management decisions,and national and international reporting needs.A wide range of biophysical and socioeconomic data were collected,and in some cases integrated,for estimating the indicators.Conclusions:The BFI is a new information source tool for helping guide Bangladesh towards a sustainable future.Reliable information on the status of tree and forest resources,as well as land use,empowers evidence-based decision making across multiple stakeholders and at different levels for protecting natural resources.The integrated socioeconomic data collected provides information about the interactions between people and their tree and forest resources,and the valuation of ecosystem services.The BFI is designed to be a permanent assessment of these resources,and future data collection will enable monitoring of trends against the current baseline.However,additional institutional support as well as continuation of collaboration among national partners is crucial for sustaining the BFI process in future. | Matieu Henry Zaheer Iqbal Kristofer Johnson Mariam Akhter Liam Costello Charles Scott Rashed Jalal Md.Akhter Hossain Nikhil Chakma Olaf Kuegler Hossain Mahmood Rajib Mahamud Mohammad Raqibul Hasan Siddique Khaled Misbahuzzaman Mohammad Main Uddin Mohammed Al Amin Farid Uddin Ahmed Gael Sola Md.Baktiar Siddiqui Luca Birigazzi Mahmudur Rahman Ilias Animon Saimunnahar Ritu Laskar Muqsudur Rahman Aminul Islam Heather Hayden Frida Sidik Mondal Falgoonee Kumar Rakibul Hassan Mukul Hossain Nishad Ariful Hoque Belal Asif Reza Anik Abdul Khaleque Md.Shaheduzzaman Syed Shahadat Hossain Tariq Aziz Md.Tauhidor Rahaman Ruhul Mohaiman Patrick Meyer Purnata Chakma A.Z.M.Manzoor Rashid Sourav Das Shrabanti Hira Mohammed Jashimuddin Mohammad Mahfuzur Rahman Karl Wurster Sarder Nasir Uddin Abul Kalam Azad S.M.Zahirul Islam Laurent Saint-André | 2021 | Forest Ecosystems2021，8，1： | 0 |
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