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Investigation of proton structure function F_(2)^(p)at HERA in light of an analytical solution to the Balitsky–Kovchegov equation

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Communications in Theoretical Physics 2024年第3期76卷 120-126页

作者： Ranjan Saikia Pragyan Phukan Jayanta kumar sarma HEP laboratory Department of PhysicsTezpur UniversityTezpurAssam-784028India Department of Physics Moran CollegeMoranhatAssam-785670India

In this paper,the proton structure function F_(2)^(p)(x,Q^(2))at small-x is investigated using an analytical solution to the Balitsky–Kovchegov(BK)*** the context of the color dipole description of deep inelastic scattering(DIS),the structure function F_(2)^(p)(x,Q^(2))is computed by applying the analytical expression for the scattering amplitude N(k,Y)derived from the BK *** transverse momentum k and total rapidity Y,the scattering amplitude N(k,Y)represents the propagation of the quark-antiquark dipole in the color dipole description of *** the BK solution we extracted the integrated gluon density xg(x,Q^(2))and then compared our theoretical estimation with the LHAPDF global data fits,NNPDF3.1sx and ***,we have investigated the behavior of F_(2)^(p)(x,Q^(2))in the kinematic region of 10^(-5)≤x≤10^(-2)and 2.5 GeV^(2)≤Q^(2)≤60 GeV^(2).Our predicted results for F_(2)^(p)(x,Q^(2))within the specified kinematic region are in good agreement with the recent high-precision data for F_(2)^(p)(x,Q^(2))from HERA(H1 Collaboration)and the LHAPDF global parametrization group NNPDF3.1sx.

关键词： quantum chromodynamics(QCD) perturbative QCD(pQCD) proton structure function small-x Balitsky-Kovchegov equation

Hereditary fructose intolerance: A comprehensive review

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World Journal of Clinical Pediatrics 2022年第4期11卷 321-329页

作者： Sumit kumar Singh Moinak Sen sarma Department of Pediatrics Sri Aurobindo Medical College and PGIIndore 453555Madhya PradeshIndia Department of Pediatric Gastroenterology Sanjay Gandhi Postgraduate Institute of Medical SciencesLucknow 226014India

Hereditary fructose intolerance(HFI)is a rare autosomal recessive inherited disorder that occurs due to the mutation of enzyme aldolase B located on chromosome 9q22.3.A fructose load leads to the rapid accumulation of fructose 1-phosphate and manifests with its downstream *** commonly children are affected with gastrointestinal symptoms,feeding issues,aversion to sweets and *** manifestations include an asymptomatic increase of transaminases,steatohepatitis and rarely liver *** involvement usually occurs in the form of proximal renal tubular acidosis and may lead to chronic renal *** confirmation,a genetic test is favored over the measurement of aldolase B activity in the liver biopsy *** crux of HFI management lies in the absolute avoidance of foods containing fructose,sucrose,and sorbitol(FSS).There are many dilemmas regarding tolerance,dietary restriction and occurrence of *** with HFI who adhere strictly to FSS free diet have an excellent prognosis with a normal *** review attempts to increase awareness and provide a comprehensive review of this rare but treatable disorder.

关键词： Hereditary Fructose Intolerance Children Liver Steatohepatitis Aldolase

Highlighting novel genes associated with the classical Rett syndrome patient from India

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Genes & Diseases 2022年第6期9卷 1394-1396页

作者： Gomathi Mohan Ranjan Jyoti sarma Mahalaxmi Iyer Nachimuthu Senthil kumar Balachandar Vellingiri UGC-RGNF Senior Research Fellow Human Molecular Cytogenetics and Stem Cell LaboratoryDepartment of Human Genetics and Molecular BiologyBharathiar UniversityCoimbatore 641046Tamil NaduIndia Department of Biotechnology Mizoram University(A Central University)Aizawl 796004MizoramIndia Livestock Farming&Bioresource Technology Tamil NaduIndia Human Molecular Cytogenetics and Stem Cell Laboratory Department of Human Genetics and Molecular BiologyBharathiar UniversityCoimbatore 641046Tamil NaduIndia

Rett syndrome(RTT)is a rare X-linked brain disorder predominantly in females,caused by mutations in Methyl-CpGBinding Protein2(MECP2)gene with the characteristic features of progressive developmental delay,severe intellectual disability,microcephaly,retarded growth,loss of communication abilities,loss of purposeful hand movements,abnormal walking or gait abnormalities,repetitive hand movements,abnormal breathing,irritability and abnormal behaviours.1 Over the last five years,more than eighty genes related to RTT were found using next generation sequencing.2 Here we presented a comprehensive clinical report of a 38-year-old RTT woman having de novo heterozygous Laminin Subunit Gamma 3 gene(LAMC3)mutation G>A(Chr9:133944387;p.C947Y)links with RTT neurological dysfunctions,brain malformations,reduced brain volume and hypoplasia of corpus *** new finding supports the possibility of targeting LAMC3 gene for rescuing the neuropathology of *** deleterious mutations found in genes such as,CACNA1B(rs4422842),CUBN(rs2271460),GPATCH3(rs779537923),TUBB1(rs463312),KCNJ5(rs768906222),VWA5A(rs551469534),DNAAF1(rs751148678),and PARP1(rs3219145)were unreported in RTT patients.

关键词： RTT lighting delay

选择性激光熔化17-4 PH不锈钢零件的参数化研究和表征

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Journal of Central South University 2023年第3期30卷 855-870页

作者： I.KARTIKEYA sarma N.SELVARAJ Adepu kumar Mechanical Engineering Department National Institute TechnologyWarangal 506004India

本文对选择性激光熔化的17-4 PH不锈钢进行了参数化研究和表征。通过改变工艺参数包括激光功率和扫描速度以及扫描方式(设计参数)来研究试样的相对密度和显微硬度的变化。当使用中等能量密度和内外六角扫描方式时,试样的相对密和显微硬... 详细信息

本文对选择性激光熔化的17-4 PH不锈钢进行了参数化研究和表征。通过改变工艺参数包括激光功率和扫描速度以及扫描方式(设计参数)来研究试样的相对密度和显微硬度的变化。当使用中等能量密度和内外六角扫描方式时,试样的相对密和显微硬度最大;当使用低能量密度和交替带状扫描方式时,试样的相对密和显微硬度最小。在光学和扫描电子显微组织中,试样侧面有奥氏体、铁素体和小熔池。能量色散光谱分析表明,试样的化学成分变化导致相对密度和显微硬度发生变化。X射线衍射结果表明,中等能量密度试样的奥氏体相和铁素体峰强度最高。背散射电子衍射结果表明,随着能量密度的增加,奥氏体相增加,导致试样的显微硬度变化。相比于中等能密度试样,低能量密度试样易诱发更多的残余应力。采用不同能量密度得到的样品都具有较强的耐蚀性(0.05 mm/a),未出现明显的腐蚀裂纹。

关键词：选择性激光熔化 17-4 PH不锈钢扫描方式能量密度扫描速度残余应力

Multipliers on Vector-valued L^1-spaces for Hypergroups

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Acta Mathematica Sinica,English Series 2018年第7期34卷 1059-1073页

作者： R.sarma N.Shravan kumar Vishvesh kumar Department of Mathematics Indian Institute of Technology Delhi

In this article, we extend the well known Wendel＇s theorem to the context of vector-valued L1-spaces on hypergroups. In this regard, various cases have been studied.

关键词： Vector-valued Ll-spaces hypergroups multipliers translation invariant operators Fouriertransform

Dynamic characterization of the migration of a mining pit in an alluvial channel

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International Journal of Sediment Research 2019年第2期34卷 155-165页

作者： Bandita Barman Bimlesh kumar Arup kumar sarma Department of Civil Engineering Indian Institute of Technology Guwahati

Research on in-channel sand mining is imperative as it may have a significant impact on channel *** this quest to quantitatively comprehend the phenomenon,experimental studies were done to investigate the dynamic characteristics of the migration of a mining *** evaluation of the migration rate of a mining pit in a physical scale model has found a rise in the migration rate of the pit's upstream edge with increasing discharge.A wavelet analysis applied for analyzing scale-dependent migration of the bed profile of a mining pit also revealed similar ***,the wavelet analysis examined the length-scale dependent migration of a mining pit and a decrease in the migration rate has been observed with an increase in the length *** plan form of a pit(length-to-width ratio)governs the erosion and deposition processes around the *** physical and statistical approaches show an increase in the migration rate with an increase in the length-to-width ratio of the *** empirical formulation has been developed for calculating the migration rate of the upstream edge of a mining pit based on pit geometry(length-to-width ratio),average flow velocity,and critical shear stress of the bed *** results also show a higher bed load transport rate in the channel subjected to mining as compared to a plain bed channel.

关键词： Sand mining Migration Wavelet analysis Bed load transport

Bile acid synthetic defects: Simplified approach in a nutshell

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Hepatobiliary & Pancreatic Diseases International 2020年第1期19卷 80-84页

作者： Aathira Ravindranath Moinak Sen sarma Surender kumar Yachha Department of Pediatric Gastroenterology Sanjay Gandhi Post Graduate Institute of Medical Sciences

Bile acid synthetic defects(BASD)constitute a rare group of disorders with manifestations in children as well as *** the individual BASD mandates a lucid understanding of the bile acid synthetic ***,the synthesis pathway is complex,consisting of numerous enzymes and intermediate products that are volatile in the physician’s *** paucity of literature,a simplified approach to the BASD is presented in this paper.

关键词： synthetic simplified approach

Diversity of Middle Eocene Coralline Red Algae from the Prang Limestone(Shella Formation) of Jaintia Hills, Meghalaya, NE Himalaya, India with special emphasis on palaeoenvironment

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科学通报 2013年第S1期58卷 118-125页

作者： GHOSH Amit kumar sarma Ajanta SARKAR Suman Birbal Sahni Institute of Palaeobotany Department of Geology GC College

Palaeocene-Eocene carbonates of shallow marine sequence belonging to Shella Formation of Jaintia Group are well developed in the south of the Jaintia Hills, Meghalaya and represent an excellent outcrop of shelf sediments in North Eastern Himalaya, India. These outcrops are exposed along the southern fringe of Shillong Plateau. The Prang Limestone is the uppermost lithostratigraphic unit of the Shella Formation within the Jaintia Group. It is overlain by sand-shale alternation of the Kopili Formation and underlain by the Narpuh Sandstone. A rich assemblage of larger foraminifera including Nummulites, Discocyclina etc. has been recorded earlier from the Prang Limestone and based on the foraminiferal assemblage, a Middle Eocene to Early Late Eocene age has been assigned to the Prang Limestone. Thin section analysis of the Prang Limestone revealed the abundance of well preserved coralline red algae along with other well preserved and significant biogenic elements. Morpho-taxonomical study reveals that the algal flora is represented by seven species belonging to the families Hapalidiaceae(Subfamily: Melobesioideae), Corallinaceae(Subfamily: Mastophoroideae) and Sporolithaceae. The dominance of melobesioid and mastophoroid forms is the characteristic feature of this algal assemblage. Coralline algae occur mostly in encrusting growth form with orbitoid foraminifera and occasionally the coralline algae form rhodoliths. On this basis of algal forms it can be inferred that they thrived in a shallow, warm, shelf environment of normal salinity.

关键词： diversity Coralline algae taxonomy Middle Eocene Shella Formation Meghalaya NE Himalaya India

Population Structure and Marker-Trait Association in Indigenous Aromatic Rice

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Rice science 2017年第3期24卷 145-154页

作者： Preeti Rekha TALUKDAR Sunayana RATHI Khanin PATHAK Sanjay kumar CHETIA Ramendra Nath sarma Department of Plant Breeding and Genetics Assam Agricultural University Jorhat 785013 India Biochemistry & Agricultural Chemistry Assam Agricultural University Jorhat 785013 India Regional Agricultural Research Station Assam Agricutural University Jorhat 785013 India

Joha rice of Assam is a class of rice with aroma, good cooking qualities and excellent palatability, which are grown in different places of Assam with their adaptability to local situations. A total of 143 simple sequence repeat markers were used in this study to reveal sufficient genetic variations among the 40 Joha and 14 non-Joha rice genotypes. Polymorphism information content of these markers were from 0.17 to 0.88, where the average of 3.7 alleles were observed. The model-based population assignment and dendrogram analysis identified three distinct groups in the 54 rice accessions, which established a clear identity of Joha accessions from the Basmati accessions, indicating high diversity and strong population structure in Joha rice. Furthermore, a total of 29 significant marker-trait associations(P < 0.05) for 10 characters were detected. The QTLs related with yield and grain quality can be used effectively in crop improvement programs and for further fine mapping and validation of specific genes to develop gene-based perfect markers in rice breeding and for mining of better alleles of these genes in Joha rice collections.

关键词： Joha rice genetic diversity association mapping population structure quantitative trait locus aroma