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seasonal variations of rotifers from a high altitude urban shallow water body, La Cantera Oriente (Mexico City, Mexico)

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Chinese Journal of Oceanology and Limnology 2017年第6期35卷 1387-1397页

作者： sergio González GUTIERREZ s.s.s. sarma s. NANDINI Postgraduate Programme in Marine sciences and Limnology National Autonomous University of Mexico Circuito Exterior sin Ciudad Universitaria Mexico City 04510 Mexico Laboratory of Aquatic Zoology Division of Research & Postgraduate Studies National Autonomous University of Mexico Campus Iztacala Av. de los Barrios No.1 AP 314 Los Reyes Tlalnepantla State of Mexico 54090 Mexico

La Cantera Oriente is a shallow freshwater volcanic water body located at an altitude of 2 270 m above sea level in the Ecological Reserve of san Angel Pedregal of Mexico City(Mexico). In order to ensure the conservation of its biological heritage including zooplankton, the present work was undertaken to quantify the seasonal changes in the diversity and density of rotifers and the selected physicochemical variables during 2013–2014. Qualitative analysis of the zooplankton samples yielded 68 rotifer species which represented 24 genera in 15 families. B rachionus calyciflorus Pallas, 1766, B. quadridentatus Hermann, 1783, Polyarthra vulgaris Carlin, 1943, Lecane closterocerca(schmarda, 1859) and Keratella cochlearis(Gosse, 1851) were the most common species. Preston plots of species frequency-density revealed that as many as 30% of the rotifer taxa were dominant throughout the year. The species with high population densities were B rachionus quadridentatus, Lecane closterocerca, Keratella cochlearis, and Lepadella patella; their peak densities were 2 000, 1 000, 180 and 90 ind./L, all occurring in summer. Canonical correspondence analys.s.s.owed that P latyias quadricornis was related to the concentration of phosphates available in the environment and the conductivity, while B. quadridentatus was positively correlated with chlorophyll-a. The trophic status of the lake was eutrophic based on Chl-a content but oligotrophic with relation to the B rachionus :T richocerca ratio.

关键词：墨西哥城臂尾轮虫季节变化高海拔浅层东方生态保护区水体

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Gut and liver involvement in pediatric hematolymphoid malignancies

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World Journal of Gastrointestinal Oncology 2022年第3期14卷 587-606页

作者： Umeshreddy V Devarapalli Moinak s sarma Gopinathan Mathiyazhagan Department of Pediatric Gastroenterology Sanjay Gandhi Postgraduate Institute of Medical SciencesLucknow 226014Uttar PradeshIndia Department of Hematology Sanjay Gandhi Postgraduate Institute of Medical SciencesLucknow 226014Uttar PradeshIndia

Hematolymphoid malignancies are common neoplasms in *** involvement of the gastrointestinal(GI)tract,liver,biliary system,pancreas,and peritoneum are closely interlinked and commonly *** leukemias,lymphomas,and Langerhans cell histiocytosis(LCH),the manifestations result from infiltration,compression,overwhelmed immune system,and chemotherapyinduced drug *** acute leukemias,major manifestations are infiltrative hepatitis,drug induced gastritis,neutropenic typhlitis and chemotherapy related *** leukemias are *** presentation in lymphomas is cholestasis due to infiltration or biliary obstruction by lymph nodal *** of ascites needs a thorough workup for the underlying pathophysiology that may modify the therapy and affect the *** hematolymphoid malignancies are primary hepatic,hepatosplenic,and GI lymphomas which have strict *** advanced diseases with extensive spread,it may be impossible to distinguish these diseases from the primary site of *** produces biliary strictures that mimic as sclerosing *** infiltration is associated with poor liver recovery even after *** heterogeneity of gut and liver manifestations in hematolymphoid malignancies has a clinical impact on their *** chemotherapy is the mainstay of therapy in all hematolymphoid malignancies,debulking surgery and radiotherapy have an adjuvant role in specific clinical *** situations presenting as liver failure or end-stage liver disease require liver *** their initial presentation to a primary care physician,given the ambiguity in clinical manifestations and the prognostic difference with time-bound management,it is vital to recognize them early for optimal *** data from robust registries across the world is required for better understanding of these complications.

关键词： Leukemia Lymphoma Langerhans cell histiocytosis Gastrointestinal Hepatobiliary

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A study of the Number of Roots of xk =g in a Finite Group via Its Frobenius-schur Indicators

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Algebra Colloquium 2017年第1期24卷 93-108页

作者： s.K. Prajapati R. sarma Department of Mathematics Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India

Let G be a finite group. For k ∈ N, X ∈ Irr（G）, define c（k）x ：= 1/G ∑g∈G x（gk）. This is called the k-th Frobenius-schur indicator of X. In this article we study the Probenius-schur indicators for Frobenius groups, p-groups, semidihedral groups and mod- ular p-groups. Further, we use this to study the function ζ kG（g） which counts the number of roots of xk = g in a finite group G.

关键词： Frobenius-schur indicators p-groups group characters

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Natural history and management of liver dysfunction in lysosomal storage disorders

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World Journal of Hepatology 2022年第10期14卷 1844-1861页

作者： Moinak sen sarma Parijat Ram Tripathi Department of Pediatric Gastroenterology Sanjay Gandhi Postgraduate Institute of Medical SciencesLucknow 226014India Department of Pediatric Gastroenterology Ankura Hospital for Women and ChildrenHyderabad 500072India

Lysosomal storage disorders(LsD)are a rare group of genetic *** major LsDs that cause liver dysfunction are disorders of sphingolipid lipid storage[Gaucher disease(GD)and Niemann-Pick disease]and lysosomal acid lipase deficiency[cholesteryl ester storage disease and Wolman disease(WD)].These diseases can cause significant liver problems ranging from asymptomatic hepatomegaly to cirrhosis and portal *** storage cells initiate hepatic fibrosis in sphingolipid *** causes micronodular cirrhosis in lipid storage *** disorders must be keenly differentiated from other chronic liver diseases and non-alcoholic steatohepatitis that affect children and young ***,Niemann-Pick type C,and WD also cause neonatal cholestasis and infantile liver *** and liver phenotype correlation is variable in these *** with LsD may survive up to 4-5 decades except for those with neonatal onset *** diagnosis of all LsD is based on enzymatic activity,tissue histology,and genetic *** replacement is possible in GD and Niemann-Pick types A and B though there are major limitations in the *** that progress invariably require liver transplantation with variable *** prognosis of Niemann-Pick type C and WD is universally *** replacement therapy has a promising role in cholesteryl ester storage *** review attempts to outline the natural history of these disorders from a hepatologist’s perspective to increase awareness and facilitate better management of these rare disorders.

关键词： Lysosomal Gaucher Niemann-Pick Wolman Cholesteryl ester Children

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Challenges and dilemmas in pediatric hepatic Wilson’s disease

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World Journal of Hepatology 2023年第10期15卷 1109-1126页

作者： Upasana Ghosh Moinak sen sarma Arghya samanta Department of Pediatric Gastroenterology Sanjay Gandhi Post graduate Institute of Medical SciencesLucknow 226014Uttar PradeshIndia Department of Pediatric Gastroenterology Sanjay Gandhi Postgraduate Institute of Medical SciencesLucknow 226014India

Wilson disease is an autosomal recessive disorder affecting the ATP7B gene located on chromosome *** leads to copper deposition in various organs,most importantly in the liver and *** genetic mutations are vast,well reported in the West but poorly documented in developing *** the diagnosis is made with a constellation of clinico-laboratory parameters which have significant overlap with other liver diseases and often pose a significant dilemma for *** scoring systems are not *** availability and affordability of chelators in developing countries impact the drug compliance of *** D-penicillamine is a potent drug,its side effects lead to drug *** is cost-prohibitive in developing *** is no single test to assess the adequacy of *** urinary copper is an essential upcoming diagnostic and prognostic *** the presence of cirrhosis,hypersplenism clouds the assessment of myelosuppression of ***,it may be difficult to distinguish disease tubulopathy from druginduced *** worsening due to chelators may appear similar to disease *** as fulminant hepatic failure requires rapid *** is a limited window of opportunity to salvage these patients with the help of plasmapheresis and other liver-assisted *** review addresses the challenges and clinical dilemmas faced at beside in developing countries.

关键词： Wilson’s disease Children Hepatic Wilson disease D-penicillamine Trientine Exchangeable copper

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Application of RP-HPLC method in dissolution testing and statistical evaluation by NAssAM for simultaneous estimation of tertiary combined dosages forms

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Journal of Pharmaceutical Analysis 2015年第5期5卷 307-315页

作者： Yogesh Upadhyay Nitin sharma G.s.sarma Ravindra K.Rawal Department of Pharmaceutical Analysis Indo-Soviet Friendship College of Pharmacy

A dissolution method with robust high performance liquid chromatographic （HPLC） analysis for im- mediate release tablet formulation was developed and validated to meet the requirement as per Inter- national Conference on Harmonization （ICH） and United states Food and Drug Administration （UsFDA） guidelines. The method involved the use of Agilent ZORBAX Eclipse XDB C18 column, and temperature was maintained at 30 ℃. After optimization, the mobile phase was selected as phosphate buffer （KH2PO4, 30 mM）： ACN （60：40, v/v） with pH 3.0, and retention time Rt was found as 3.24, 4.16, and 2.55 min for paracetamol （PCM）, chlorpheniramine maleate （CPM） and phenylephrine hydrochloride （PH） respec- tively at 265 nm and at a flow rate of 1 mL/min. The relative standard deviation （%RsD） for 6 replicate measurements was found to be less than 2%. Furthermore net analyte signal standard addition method （NAssAM） with spectrophotometer was performed for standard and liquid oral suspension. On the basis of selectivity, sensitivity and accuracy analysis, it was confirmed that this novel method could be useful for simultaneous estimation of the given drug combinations. Two-way analysis of variance （ANOVA） was applied for evaluating the statistical difference between the assay results obtained via both NAssAM and RP-HPLC methods and ultimately no significant difference was found between both the methods. All the methods and results were acceptable and confirmed that the method was suitable for intended use.

关键词： DissolutionRP-HPLCNet analyte signal standard addition meth-odTwo-way ANOVA

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Using yttrium as an indicator to estimate total rare earth element concentration:a case study of anthracite-associated clays from northeastern Pennsylvania

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International Journal of Coal science & Technology 2020年第4期7卷 652-661页

作者： Xiaojing Yang Daniel Kozar Daniel Gorski Anthony Marchese James Pagnotti Rusty sutterlin Mohammad Rezaee Mark s.Klima sarma V.Pisupati John and Willie Leone Family Department of Energy and Mineral Engineering and the EMs Energy Institute Center for Critical MineralsThe Pennsylvania State University110 Hosier BuildingUniversity ParkPA 16802USA Texas Mineral Resources Corporation.539 El Paso st Sierra BlancaTX 79851USA Pagnotti Enterprises 46 Public SquareWilkes-BarrePA 18701USA Inventure Renewables Inc161625th Avenue.TuscaloosaAL 35401USA

This study demonstrated using yttrium(Y)as an indicator to estimate the total rare earth element and Y contents(REY)in coal-associated samples and to facilitate selection of samples with high REY assays in a fast and inexpensive *** than 10 anthracite-associated samples were collected from each of three Pennsylvanian sites(sites B,J and C)based on Thorium gamma ray logging suggesting high REY *** samples from each site were analyzed by ICP-Ms to determine the rare earth distribution patterns and to establish the site-specific linear equations of Y and *** Y contents of the remaining samples were measured by a portable X-ray fluorescence analyzer,and the REY values were estimated based on the site-specific linear equation developed earlier.R-squared values above 0.70 were obtained for all the estimation equations from all three sites on both a whole sample basis and an ash ***,ash content has been widely used as an indicator of high REY *** may not be applicable for a specific *** B in this study is an example where ash contents could not be statistically correlated with REY,so using Y for estimation is more *** demonstrated sample screening process is suitable for samples from sites that share more similar distribution patterns(either MREY or LREY or HREY)as well as for samples from sites that share multiple distribution patterns(LREY/MREY/HREY)depending on the desirable *** demonstrated process lowers the analytical cost from$70 to 80 dollars per sample to$10-15 per sample while significantly reducing the processing time and acid consumption for ICP *** is particularly true when a relatively large sample size is involved,for example,100 samples from one site analyzed by ICP-Ms/OEs.

关键词： Rare earth elements XRF analysis Correlations Prediction ICP analysis

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Wave-Particle Duality: Particle Always Remains Particle and Its Wave Function Always Remains Wave

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Journal of High Energy Physics, Gravitation and Cosmology 2023年第3期9卷 596-601页

作者： sarma N. Gullapalli Independent Researcher Warwick USA

On the question of wave-particle duality, from the historic Bohr-Einstein debates a century ago, to this day, the view expressed in Niels Bohr’s Complementarity Principle has become well established, confirmed by numerous experiments: If the observation is for wave nature, then the particle changes to wave, and if the observation is for particle nature, then the particle remains particle. However, recently this view has been challenged. With proof based on the definition of wave function, it has been shown that particle always remains particle and its wave function always remains wave, no mysterious change from particle to wave and vice versa.

关键词： Quantum Mechanics Wave-Particle Duality Complementarity Entanglement

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Occurrence and geographical distribution of mangrove fungi

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Fungal Diversity 2021年第1期106卷 137-227页

作者： B.Devadatha E.B.G.Jones K.L.Pang M.A.Abdel-Wahab K.D.Hyde J.sakayaroj A.H.Bahkali M.s.Calabon V.V.sarma s.sutreong s.N.Zhang Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand school of science Mae Fah Luang UniversityChiang Rai 57100Thailand Institute of Plant Health Zhongkai University of Agriculture and EngineeringHaizhu DistrictGuangzhou 510225People’s Republic of China Department of Botany and Microbiology King Saudi UniversityRiyadhSaudi Arabia Institute of Marine Biology and Centre of Excellence for the Oceans National Taiwan Ocean University2 Pei-NingRoadKeelung 20224TaiwanROC Department of Botany and Microbiology Faculty of ScienceSohag UniversitySohag 82524Egypt school of science Walailak University222 ThaiburiThasala DistrictNakhon Si Thammarat 80161Thailand Department of Biotechnology School of Life SciencesPondicherry UniversityKalapetPondicherry 605014India National Biobank of Thailand(NBT) National Science and Technology Development Agency(NSTDA)111 Thailand Science ParkThanon PhahonyothinTambon Khlong NuengAmphoe Khlong LuangPathum Thani 12120Thailand

This is a multidimensional review of mangrove fungi occurring as saprobes,pathogens and endophytes of a wide range of host substrates and those isolated from the water columns and sediments in ***-hundred and fifty taxa including 658 that are supported by both morphology and molecular data and 192 with only morphological data are *** constitute Ascomycota,the dominant group with 773 species,and 58 Basidiomycota,one Blastocladiomycota,five Chytridiomycota,and 13 *** study also includes data on mangrove yeasts 103 Ascomycota,39 Basidi-omycota and 193 taxa isolated from *** isolated from submerged parts of mangrove plants total *** most specious orders of mangrove fungi are Pleosporales 133,saccharomycetales 102,Microascales 101,Eurotiales 87,Hypocreales 60 and Xylariales *** genera include Candida 39,Aspergillus 53,Penicillium 17 and Corollospora *** highest number of mangrove fungi have been recorded from the Pacific Ocean 553,which is the largest ocean,followed by Indian 408 and Atlantic Oceans *** distribution of mangrove fungi varied from ocean to ocean with only 109 taxa common to the Atlantic,Indian and Pacific *** the various countries reported for mangrove fungi,India accommodates the highest number(339)followed by Thailand 303,Malaysia 171,Florida Everglades,UsA 134 and Brunei 134.A total of 60 different mangrove plants and their associates have been surveyed for mangrove *** results are discussed and compared with previous studies.

关键词： Host preference Marine ecology Marine fungi World distribution

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在培养基和食料中添加铅和镉对轮虫种群动态的影响(英文)

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动物学报 2005年第1期51卷 46-52页

作者： s.s.s.sarma Hilda Fabiola NU'EZ-CRUZ s. NANDINI Laboratory of Aquatic Zoology Division of Investigation & Postgraduate Studies Building UMFNational Autonomous University of MexicoCampus IztacalaAP 314CP 54090TlalnepantlaState of MexicoMexico Laboratory of Aquatic ZoologyDivision of Investigation & Postgraduate Studies Building UMFNational Autonomous University of MexicoCampus IztacalaAP 314CP 54090TlalnepantlaState of MexicoMexico UIICSEDivision of Investigation & Postgraduate StudiesNational Autonomous University of MexicoCampus IztacalaAP 314CP 54090 TlalnepantlaState of MexicoMexico

由于工业活动的影响 ,墨西哥水体环境中的重金属浓度在上升。浮游动物 ,尤其是轮虫类 ,由于对环境变化十分敏感而且是淡水中的常见组成部分 ,因此被广泛用于生态毒理试验以确定水质标准。在不同的胁迫途径下 (如通过培养基或食料 ) ,重... 详细信息

由于工业活动的影响 ,墨西哥水体环境中的重金属浓度在上升。浮游动物 ,尤其是轮虫类 ,由于对环境变化十分敏感而且是淡水中的常见组成部分 ,因此被广泛用于生态毒理试验以确定水质标准。在不同的胁迫途径下 (如通过培养基或食料 ) ,重金属的毒性是不同的。在本研究中 ,通过在轮虫Brachionusrubens的培养基和食料中添加重金属这两种途径 ,我们评估了镉和铅的效应。对于这两种重金属 ,均采用将轮虫置于含 0 5×10 6个 /ml绿藻的培养基中或每天喂食经 5倍于LC50 值的金属处理 (1,2和 4h)的绿藻。对于在培养基中添加镉 ,使用了三个毒性水平 (0 1,0 2和 0 4mg/L) ,铅的浓度分别为 0 0 0 5 ,0 0 10和 0 0 15mg/L。基于LC50的数据 ,B .rubens对铅的敏感性要比镉高 2 4倍。镉浓度为 0 4mg/L时 ,培养基中加入镉造成B .rubens的生长趋缓。而喂食经不同时间处理的绿藻后 ,轮虫的密度随着食料在重金属中处理时间的延长而减小。培养基中或食料中添加铅时 ,轮虫种群生长的的趋势与在镉处理下的情况类似。随着培养基中重金属浓度的增加 ,每天种群增长率 (r值 )会减小。在培养基和食料处理两种不同途径下 ,r值会在 0 33(对照 )到 0 0 2d-1(经重金属处理 )

关键词：食料轮虫培养基添加喂食 LC50 虫种处理常见不同时间

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