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Hydrogeochemistry and Quality Assessment of Mine Water of West Bokaro Coalfields, Hazaribag, Jharkhand, India

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材料科学与工程（中英文A版） 2013年第8期3卷 540-549页

作者： Gautam Chandra mondal Abhay kumar Singh Tej Bahadur Singh Brajendra kumar Tewary Amalendu Sinha CSIR-Central Institute of Mining and Fuel Research Dhanbad 820015 Jharkhand India

A total of 33 samples of mine water discharges from the different mines of West Bokaro Coalfields of Hazaribag district of Jharkhand, India, were analyzed to carry out qualitative assessment and suitability for domestic, irrigation and industrial purposes. The electrical conductivity (EC) for measured samples and spatial differences reflects the wide variation in lithology, surface activities and hydrological regime prevailing in the region. The anion chemistry shows the dominance of SO4 2- and HCO3 - with minor contribution from Cl, NO3 and F. The cation chemistry indicate that 79% of the samples are Ca > Mg > Na > k, while the 6% belong to Ca > Na > Mg > k and 1% of Ca > Mg > k > Na. Concentrations of some heavy metals (Fe, Mn, Ni, Cr) are found to be well above the prescribed permissible levels recommended for the drinking water. The water quality assessment for drinking purposes indicate that most of the mine water having high TDS, total hardness (TH) and sulphate concentrations, suggests that mine water of the study area is not suitable for direct use in drinking and domestic purposes. The mine water can be used for irrigation purposes; however, high values of salinity, %Na, SAR, RSC and Mg-hazard at certain sites restrict its suitability for agriculture uses.

关键词：水文地球化学水质评价煤田印度硫酸盐浓度矿水工业用途离子化学

Microwave Preparation of SiO2-B2O3-Na2O-k2O-CaO-Fe2O3-TiO2 Glass System

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Journal of Chemistry and Chemical Engineering 2014年第4期8卷 349-357页

作者： Ashis kumar Manda Prasanta kumar Sinha Santanu Sen Sitendu mondal Chandan Guha Ranjan Sen CSIR-Central Glass and Ceramic Research Institute Kolkata 700032 India Department of Chemical Engineering Jadavpur Unirversity Kolkata 700032 India

This study reports preparation of glass composition （54.50 wt.%） SiO2, （10.80 wt.%） B2O3, （14.20 wt.%） Na2O, （1.20 wt.%） k2O, （6.00 wt.%） CaO, （4.00 wt.%） Fe2O3 and （9.30 wt.%） TiO2 by melt quenching method using direct microwave heating and conventional resistive heating. Study of dielectric loss factor of the glass as function of temperature illustrated increasing loss factor above 370 ℃, 550 ℃, 650 ℃ and 900 ℃, indicating enhanced microwave absorption by the glass at above these temperatures. Chemical analysis results of both the glasses depicted more volatilization loss of volatile ingredients in conventional heating. The study of chemical durability was performed from leachate analysis describing less leaching of Na2O, k2O and other constituents from glass melted in microwave furnace. Glass transition temperatures （Tg） were found to be 576.3 ℃ and 569.5 ℃ for glass melted in conventional and microwave heating route, respectively. Laboratory experiment of glass melting utilizing microwave energy as an alternate heating source demonstrated 70%-75% electrical power saving.

关键词： Microwave heating energy efficient glass melting dielectric constant loss factor chemical durability.

Liver Function Tests in Patients of Acute Leukemia before and after Induction Chemotherapy

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Journal of Biosciences and Medicines 2020年第2期8卷 110-121页

作者： Tahmidul Islam A. k. M. Shahidur Rahman Md. kamrul Hasan Ferdous Jahan Manik Chandra mondal Sheuly Ferdoushi Sabrina Alam Mohammad kamrul Ahsan Jannatut Tasnim Sharaban Tohura Department of Biochemistry Bangabandhu Sheikh Mujib Medical University (BSMMU) Dhaka Bangladesh Department of Nephrology Bangabandhu Sheikh Mujib Medical University (BSMMU) Dhaka Bangladesh Department of Haematology Colonel Malek Medical College Manikganj Bangladesh Department of Laboratory Medicine Bangabandhu Sheikh Mujib Medical University (BSMMU) Dhaka Bangladesh Department of Biochemistry TMSS Medical College Bogura Bangladesh Holy Family Red Crescent Medical College Hospital (HFRCMCH) Dhaka Bangladesh Department of Biochemistry Popular Medical College Dhaka Bangladesh Sadar Hospital Lalmonirhat Bangladesh

Background: Patients of acute leukemia require careful assessment of liver function prior to start chemotherapy to determine which drugs may be appropriate or to be modified. Post chemotherapy abnormalities of liver function tests may be due to drugs or due to disease process itself. Objective: To evaluate the status of liver function in acute leukemia patients before and after induction chemotherapy. Methodology: This was a prospective cross-sectional study conducted in the Department of Biochemistry, Dhaka Medical College, Dhaka, Bangladesh from January 2017 to December 2017 on fifty (50) newly diagnosed patients of acute leukemia who fulfilled the selection criteria. Blood samples for serum total bilirubin, alanine transaminase (ALT) and aspartate transaminase (AST) were collected before chemotherapy (Day 1) and after induction chemotherapy on 14th day and 30th day. Serum ALT and AST were measured by kinetic method and serum total bilirubin was measured by DMSO method. Data were analyzed and compared by statistical tests. Result: In this study, the mean level of serum total bilirubin before chemotherapy at day 1 was 0.89 ± 0.64 mg/dl. It was significantly (p Conclusion: It is concluded that serum total bilirubin, ALT and AST increase in response to chemotherapeutic drugs during treatment of acute leukemia.

关键词： Acute Leukaemia Alanine Transaminase (ALT) Aspartate Transaminase (AST) Bilirubin Chemotherapy

Phenol in High-mass Star-forming Regions

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Research in Astronomy and Astrophysics 2022年第6期22卷 256-268页

作者： Rana Ghosh Milan Sil Suman kumar mondal Prasanta Gorai Dipen Sahu Rahul kumar kushwaha Bhalamurugan Sivaraman Ankan Das Indian Centre for Space Physics 43 ChalantikaGaria Station RoadKolkata 700084India S.N.Bose National Centre for Basic Sciences Salt LakeKolkata 700106India Department of Space Earth&EnvironmentChalmers University of TechnologySE-41296 GothenburgSweden Institute of Astronomy and Astrophysics Academia Sinica Taipei Taipei 10617China Atomic and Molecular Physics Laboratory Institute for Nuclear Research(Atomki)Debrecen H-4026Hungary Physical Research Laboratory NavrangpuraAhmedabad 380009India

Phenol,which belongs to the C_(6)H_(6)O isomeric group,is the simplest molecule in the family of alcohol of the aromatic *** phenol has yet to be detected in the interstellar medium,a tentative identification was reported toward the Orion kL hot core using the IRAM-30 m line *** explore some more species of this isomeric group,we consider ten species to study the fate of their astronomical *** is noticed that phenol is the most energetically favorable isomer of this *** contrast,propargyl ether is the least favorable(having relative energy~103kcal mol^(-1)compared to phenol)species of this *** far,the studies associated with the formation of phenol are heavily concentrated on combustion ***,we suggest a few key reactions(C_(6)H_(6)+OH→C_(6)H_(5)+H_(2)O,C_(6)H_(6)+O→C_(6)H_(5)OH,C_(6)H_(6)+H→C_(6)H_(5)+H_(2),and C_(6)H_(5)+OH→C_(6)H_(5)OH+hν)for the formation of *** these pathways are included in a large gas-grain chemical network to study its formation in high mass star-forming regions and dark cloud *** is noticed that the phenyl(-C_(6)H_(5))formation by the ice-phase hydrogen abstraction reaction of benzene(i.e.,C_(6)H_(6)+OH→C_(6)H_(5)+H_(2)O if allowed at~10 k)could serve as the starting point for the formation of phenol in the gas phase by radiative association reaction C_(6)H_(5)+OH→C_(6)H_(5)OH+hν.The gasphase reaction C_(6)H_(6)+O→C_(6)H_(5)OH significantly contributes to the formation of phenol,when the ice-phase reaction C_(6)H_(6)+OH→C_(6)H_(5)+H_(2)O is not considered at low *** 4 ALMA archival data of a hot molecular core,G10.47+0.03,are *** yields an upper limit on phenol abundance of 5.19×10^(-9).Our astrochemical model delivers an upper limit on phenol abundance of~2.20×10^(-9)in the hot molecular core,whereas its production in the dark cloud is not satisfactory.

关键词： astrochemistry-ISM abundances-ISM molecules-(ISM:)evolution

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Ocular Fundus Abnormalities in Pre-Dialytic Chronic kidney Disease Patients

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Journal of Biosciences and Medicines 2019年第11期7卷 20-35页

作者： Mohammad kamrul Ahsan Muhammad Rafiqul Alam Asia khanam A. H. Hamid Ahmed Md. Omar Faroque k. B. M. Hadiuzzaman A. k. M. Shahidur Rahman Rafi Nazrul Islam Manik Chandra mondal Md. Azizur Rahman Holy Family Red Crescent Medical College Hospital (HFRCMCH) Dhaka Bangladesh Department of Nephrology Bangabandhu Sheikh Mujib Medical University (BSMMU) Dhaka Bangladesh Department of Nephrology & Dialysis BIRDEM General Hospital Dhaka Bangladesh Bangladesh Eye Hospital & Institute Dhaka Bangladesh

Background: Chronic kidney disease (CkD) affects 10% - 16% of the adult population. Although ocular findings related to renal insufficiency include cataract, conjunctival calcification, lid edema, conjunctival pallor and xanthalesma, by far the most important is retinopathy. Objective: To evaluate the ocular fundus abnormalities in pre-dialytic chronic kidney disease patients of the adult population. Methodology: This cross-sectional observational study was conducted in the Department of Nephrology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh from April 2012 to March 2014. A total of 100 hospital admitted CkD patients were purposively selected for this study. Age, gender, blood pressure, Body Mass Index (BMI), 24 hours Urinary Total Protein (UTP), haemoglobin level, serum creatinine, serum cholesterol, serum triglyceride and color fundus photography findings of both eyes were recorded for each patient. Inter-group comparisons were made between patients with retinopathy and those without retinopathy. Results: Out of 100 adult non-dialytic CkD patients, 43 (43%) had ocular fundus abnormalities, among them 27 (62.8%) were male and 16 (37.2%) were female. The risk of development of retinopathy was significantly higher among older patients (p = 0.006), those with low haemoglobin level (p = 0.0001) and high blood pressure. Retinopathy was significantly (p = 0.0001) increased with reduction of e-GFR. There was no relationship between BMI and high serum triglyceride level with retinal abnormality. Among 43 (43%) patients with retinal abnormality, 30 (69.76%) patients showed only hypertensive retinopathy and 5 (11.6%) patients showed only diabetic retinopathy. Mixed hypertensive and diabetic retinopathy was found in 8 (18.6%) patients. Maculopathy was seen in 11 (25.58%) patients, of whom 3 (6.98%) had hypertensive retinopathy and 8 (18.87%) had diabetic retinopathy. Optic atrophy was seen in 2 (4.6%) patients and drusen like retinal deposits were

关键词： Chronic kidney Disease (CkD) Ocular Fundus Retinopathy

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超导纳米线单光子探测器件的制备

低温与超导 2010年第11期38卷 1-4页

作者：杨晓燕尤立星张礼杰黄少铭 Mintu mondal Sanjeev kumar John Jesudasan Pratap Raychaudhuri 中国科学院上海微系统与信息技术研究所信息功能材料国家重点实验室上海200050 温州大学纳米材料与化学重点实验室温州325027 Tata Institute of Fundamental Research Homi Bhabha Rd.ColabaMumbai 400005India

超导纳米线单光子探测器件(SNSPD)是超导单光子探测系统的核心器件。文中介绍了成功制备的基于5nm厚的NbN超导超薄薄膜的SNSPD器件。器件核心结构为150nm宽的纳米曲折线结构,纳米线条占空比为75%,面积为20μm×20μm。超导纳米线是利用... 详细信息

超导纳米线单光子探测器件(SNSPD)是超导单光子探测系统的核心器件。文中介绍了成功制备的基于5nm厚的NbN超导超薄薄膜的SNSPD器件。器件核心结构为150nm宽的纳米曲折线结构,纳米线条占空比为75%,面积为20μm×20μm。超导纳米线是利用电子束曝光(EBL)技术和反应离子刻蚀(RIE)等工艺技术制备的。所制备的SNSPD样品,在温度3.5k下的临界电流约12.9μA;在1310nm波长光波辐照,12.5μA的偏置电流下,探测效率约0.016%。

关键词：超导纳米线单光子探测器电子束曝光反应离子刻蚀探测效率

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Non-Diabetic Renal Disease in Patients with Type 2 Diabetes Mellitus with Proteinuria

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Journal of Biosciences and Medicines 2019年第12期7卷 68-78页

作者： Manik Chandra mondal Rana Mokarrom Hossain k. B. M. Hadiuzzaman Md. Omar Faroque Shah Md. Zakir Hossain A. k. M. Shahidur Rahman Fahad Al Shatil Ashrafee Popy Sarker Abu Zafor Md. Salahuddin Mohammad kamrul Ahsan Department of Nephrology Bangabandhu Sheikh Mujib Medical University (BSMMU) Dhaka Bangladesh Department of Orthodontics and Dento-Facial Orthopaedics Dhaka Dental College and Hospital (DDCH) Dhaka Bangladesh Department of Nephrology Mymensingh Medical College Hospital (MMCH) Mymensingh Bangladesh Holy Family Red Crescent Medical College Hospital (HFRCMCH) Dhaka Bangladesh

Background: Diabetes mellitus (DM) is the leading cause of end stage renal disease (ESRD) worldwide. Although DM with proteinuria is the ultimate result of diabetic nephropathy (DN), a wide spectrum of non-diabetic renal diseases (NDRD) can occur in such patients. Objective: To observe the frequency and histological pattern of NDRD in diabetic patients with proteinuria and to explore their association with clinical and laboratory parameters. Methods: This cross-sectional study was conducted in the Department of Nephrology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh from April 2016 to September 2017. In this study a total of 38 cases of DM with proteinuria (>1 gm/24-hour) were selected purposively. Renal biopsy was done in all patients. Based on histological findings they were categorized into two groups;Group 1 with NDRD and Group II with DN. Their clinical and laboratory parameters were analyzed and compared. Results: Among the total study subjects, 21 (55.3%) were male and 17 (44.7%) were female, mean (±SD) age 43.45 ± 9.99 years in the NDRD group and 41.57 ± 9.50 years in the DN group. Thirty one cases (81.6%) out of thirty eight had NDRD and seven (18.4%) cases had isolated DN;therefore more than two third cases had NDRD. Duration of DM was found to be significantly shorter (p = 0.004) in the NDRD group. Diabetic retinopathy was present in 12.9% cases in NDRD group vs. 57.1% cases in DN group (p = 0.025). Frequency of microscopic hematuria was significantly higher (90.3%) in NDRD patients (p = 0.002). Conclusion: The frequency of NDRD in type 2 diabetic patients other than diabetic nephropathy is relatively high. Membrano proliferative glomeru-lonephritis and membranous nephropathy are more common in NDRD. Absence of diabetic retinopathy, presence of hematuria and shorter duration of DM are markers associated with NDRD in type 2 DM, which are important indicators for renal biopsy in diabetic patients with proteinuria.

关键词： Diabetes Mellitus (DM) Diabetic Nephropathy (DN) Non-Diabetic Renal Disease (NDRD) Renal Biopsy

Effect of Black Tea Polyphenol on Cell-ECM Interaction and MMP

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American Journal of Plant Sciences 2017年第4期8卷 856-866页

作者： Nabanita Bhattacharyya Subhajit mondal Shuvojit Moulik Sathi Paul Shreoshi Bhattacharrya Alok kumar Hazra Md. Nasim Ali Anjan Adhikari Amitava Chatterjee Ramakrishna Mission Vivekananda University IRDM Kolkata India B.C.k.V Kalyani India R.G. kar Medical College Kolkata India

Tea is one of the most widely consumed beverages in the world. Black tea, obtained from the leaves of Camellia sinensis is the preferred beverage in India and in most western countries. Epidemiological studies on black tea and cancer are limited. However, preliminary studies indicate a positive correlation between black tea consumption and a lower incidence of breast and ovarian cancer. In the present communication, we wanted to see the effect of black tea extract and the polyphenol theaflavin on cell-ECM interaction, MMP activity etc. to strengthen the anti-cancer effect of black tea.

关键词： Black Tea Polyphenol MMP ECM Cancer

粘粒—腐殖质络合的一些概况:交换性阳离子和晶格电荷的影响

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腐植酸 1993年第3期 49-55页

作者： CHAN DRIkA VARADA CHARI AJIJUL HAQVE mondal kUNAL GHOSH 李晓齐

本文研究了交换性阳离子对蒙脱石、伊利石和高岭石以及蒙脱石晶格电荷对粘粒腐殖酸综合的影响,复合物事先经过干燥。测定了复合物中水不能浸提的胡敏酸(HA)的量(定义为“固定态”的胡敏酸)。蒙脱石固定HA的顺序是:Li^+k^+... 详细信息

本文研究了交换性阳离子对蒙脱石、伊利石和高岭石以及蒙脱石晶格电荷对粘粒腐殖酸综合的影响,复合物事先经过干燥。测定了复合物中水不能浸提的胡敏酸(HA)的量(定义为“固定态”的胡敏酸)。蒙脱石固定HA的顺序是:Li^+k^+k^+

关键词：粘粒腐殖质交换性阳离子

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