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Palaeodepositional environment,implications of Glossopteris flora,and organic matter characteristics from the Lower Permian,Karo Open Cast Mine,East Bokaro Coalfield,Damodar Basin,India

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Journal of Palaeogeography 2024年第3期13卷 528-546页

作者： Sankar Suresh kumar Pillai Rose Ann Sebastian Runcie Paul Mathews Srikanta Murthy Anju Saxena Mrutyunjaya Sahoo Suraj kumar sahu Gulshan kumar Dhingra Birbal Sahni Institute of Palaeosciences 53 University RoadLucknow-226007UPIndia Academy of Scientific and Innovative Research(AcSIR) Ghaziabad-201002India Department of Geology School of Earth Science SystemsCentral University of KeralaKasaragod-671316KeralaIndia Department of Geology Ravenshaw UniversityCuttack-753003OdishaIndia Department of Botany Sri Dev Suman Uttarakhand UniversityUttarakhand-249145India

The present study deals with the Early Permian floral diversity,palaeoenvironment,palaeoclimate and depositional setting using a multiproxy approach that includes morphotaxonomy,palynology,and organic geochemistry of Karo OCM(Open Cast Mine),East Bokaro Coalfield,Damodar Gondwana Basin,*** Permian sediments of Peninsular India are widely regarded as fluvial,along with some marine *** macroplant fossil assemblage exhibits the presence of Glossopteridales,comprising Glossopteris,Gangamopteris,and Vertebraria,as well as Coniferales,which includes *** palynological assemblage encompasses the dominance of the striate bisaccate pollen Faunipollenites *** the subdominance of the non-striate bisaccate pollen Scheuringipollenites *** glossopterid *** megafloral and palynofloral assemblage confirms the biostratigraphical age to be Late Barakar palynoflora of Kungurian *** studied morphological characteristics,including small to large Glossopteris leaves exhibiting a lanceolate shape,acute apices,and acute cuneate or tapering bases,as well as entire margins with narrower lamina and narrow meshes,suggest the existence of a dense forest with the prevalence of a warm and humid climate during their *** organic geochemical characterization based on functional group and biomarker analyses reveals the diagenetic effects on organic *** symmetric(~2865-2855 cm^(-1))and asymmetric stretching(~2930-2910 cm^(-1))peaks are identifiable in coal samples,whereas they are absent in carbonaceous *** A-factor vs.C-factor plot suggests that the kerogen type is type Ⅲ,which can generate mainly gaseous *** vitrinite reflectance studies(R_(r) av.1.1%)show increased maturity of the samples,which is supported by the n-alkane distribution pattern and the absence of hopane *** Indian floral assemblages in contemporary of southern Gondwana continents reveal a stronger inclination/affinity with th

关键词： Glossopteris Palynomorph FTIR GCMS Gondwana Permian Palaeoclimate

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

Assessment of tumor markers CA 19-9,CEA,CA 125,and CA 242 for the early diagnosis and prognosis prediction of gallbladder cancer

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World Journal of Gastrointestinal Surgery 2022年第11期14卷 1272-1284页

作者： Seema Rani Sinha Prem Prakash Rakesh kumar Singh dinesh kumar Sinha Biochemistry Indira Gandhi Institute of Medical SciencesPatna 800014India General Surgery Indira Gandhi Institute of Medical SciencesPatna 800014India Surgical Gastroenterology Indira Gandhi Institute of Medical SciencesPatna 800014India Radiation Oncology State Cancer InstituteIndira Gandhi Institute of Medical SciencesPatna 800014BiharIndia

BACKGROUND Gallbladder cancer(GBC)is one of the leading and aggressive cancers in this region of *** is very difficult to diagnose in the early stage,as it lacks typical early signs and symptoms;thus,the diagnosis is often in the advanced stage,which ultimately leads to a poor 5-year survival *** markers including carbohydrate antigen 19-9(CA 19-9),carcinoembryonic antigen(CEA),CA 125,CA 242,and alpha fetoprotein are used as indicators in the diagnosis and prognosis of *** To compare tumor marker levels between GBC and benign GB diseases(GBDs)and to assess the combined use of tumor markers to increase the diagnostic accuracy for *** Patients of either sex aged≥18 years,with suspected GBC(GB polyp,irregular thick GB wall,GB mass,porcelain GB)on the basis of radiological imaging were included in this *** wall thickness using ultrasonography and tumor markers CEA,CA 125,CA 19-9,and CA 242 in all patients were *** cases after surgical intervention were divided into two groups,GBC and benign GBD,according to histopathological examination *** cases were followed up and clinical findings,radiological findings,and levels of tumor markers were *** A total of 200 patients were included in this study,of whom 80 patients had GBC and 120 patients had benign *** median(interquartile range)age was 52.0(41.0-60.0)years and the majority of patients(132,66.0%)were *** markers including CA 19-9,CA 125,CEA,and CA 242 were significantly elevated in patients with GBC(P<0.001).There was a significant reduction in tumor markers at 3 and 6 mo from baseline(P<0.001).The mean survival of patients with normal and elevated levels of tumor markers CA 125,CA 19-9,and CEA was comparable;however lymph node metastasis and CA 242 expression level were independent prognostic *** Serum levels of tumor markers including CA 19-9,CA 125,CEA,and CA 242 were significantly associated with ***,no significant asso

关键词： Benign gallbladder Tumor markers Survival Benign lesions Sensitivity Specificity

Pharmacognostic evaluation of leaf and root bark of Holoptelea integrifolia Roxb.

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Asian Pacific Journal of Tropical Biomedicine 2012年第3期2卷 169-175页

作者： dinesh kumar Karunesh kumar Sunil kumar Tarun kumar Ajay kumar Om Prakash Institute of Pharmaceutical Sciences Kurukshetra University

Objective:To evaluate the pharmacognostic characters of an important medicinal plant, Holoptelcu integrifolia(***) ***:The pharmacognostic studies were carried out in terms of organoleptic,microscopic,macroscopic and fluorescence ***: The characteristic microscopic features of leaves were observed as trichomes,multicellular trichomes,xylem cells,phloem cells,collenchyma,vascular bundles,spongy parenchyma and palisade *** characteristic microscopic features of root bark included cork cambium, primary cortex,phloem fibers,medullary rays,endodermis,pericycle and lignified fibers in the transverse section and longitudinal *** characteristic microscopy of root bark powder showed the presence of cortex cells,sieve tubes,calcium oxalate crystals and lignified fibers. Macroscopic study showed that leaf shape-oval,apex-acute,base-cordate and leaf margin was entire with glabrous surface,bitter taste and characteristic *** morphological features of root bark showed deep fissured,rough and firm surface with rhitydome and the periderm parallel to ***:Various pharmacognostic characters observed in this study help in the identification and standardization of ***.

关键词： Holoptelea integrifolia Microscopy Organoleptic Fluorescence analysis Identification Standardization Pharmacognostic character

Exploiting scattering media for exploring 3D objects

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Light(Science & Applications) 2016年第1期5卷 202-208页

作者： Alok kumar Singh dinesh N Naik Giancarlo Pedrini Mitsuo Takeda Wolfgang Osten Institut für Technische Optik(ITO)and Stuttgart Research Center of Photonic Engineering(SCoPE) University of StuttgartPfaffenwaldring 970569 StuttgartGermany School of Physics University of HyderabadHyderabad 500046India Center for Optical Research and Education(CORE) Utsunomiya UniversityYoto 7-1-2UtsunomiyaTochigi321-8585Japan

Scattering media,such as diffused glass and biological tissue,are usually treated as obstacles in *** cope with the random phase introduced by a turbid medium,most existing imaging techniques recourse to either phase compensation by optical means or phase recovery using iterative algorithms,and their applications are often limited to two-dimensional *** contrast,we utilize the scattering medium as an unconventional imaging lens and exploit its lens-like properties for lensless threedimensional(3D)imaging with diffraction-limited *** spatially incoherent lensless imaging technique is simple and capable of variable focusing with adjustable depths of focus that enables depth sensing of 3D objects that are concealed by the diffusing ***-field imaging with diffraction-limited resolution is verified experimentally by a single-shot recording of the 1951 USAF resolution test chart,and 3D imaging and depth sensing are demonstrated by shifting focus over axially separated objects.

关键词： intensity correlation technique lensless imaging scattering media 3D imaging

Adaptive particle swarm optimized fuzzy algorithm to predict water table elevation

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International Journal of Modeling, Simulation, and Scientific Computing 2019年第6期10卷 48-56页

作者： dinesh C.S.Bisht Shilpa Jain Pankaj kumar Srivastava Department of Mathematics Jaypee Institute of Information Technology Noida 201304 India School of Engineering and Technology The NorthCap University Gurugram 122017 India

This study helps to select the length for fuzzy sets in fuzzy time series *** order to examine the effect of intervals and evaluate the efficiency of the proposed algorithm,numerical data of water recharge and discharge are considered to predict water table elevation fluctuation(WTEF).Particle swarm optimization(PSO)is an influential tool to handle optimization of multi-model problems,whereas fuzzy logic can handle *** this paper,adaptive inertia weights are adopted rather than static inertia weights for PSO,which further improves efficiency of *** modified PSO is termed as adaptive particle swarm optimization(APSO).APSO optimizes the intervals and these intervals are further used to generate fuzzy sets for *** results indicate that the APSO performs better than PSO and genetic algorithm approaches for the same problem.

关键词： Swarm intelligence optimization fuzzy logic water table adaptive particle swarm optimization fuzzy inference system

Tree species composition and diversity in montane forests of Garhwal Himalaya in relation to environmental and soil properties

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Journal of Mountain Science 2020年第12期17卷 3097-3111页

作者： dinesh Singh RAWAT P.TIWARI Sudipta kumar DAS J.K.TIWARI Department of Botany&Microbiology HNB Garhwal UniversitySrinagar(Garhwal)-246174UttarakhandIndia Central National Herbarium Botanical Survey of IndiaHowrah-711103West BengalIndia

The montane forests of Garhwal Himalaya were investigated for tree species composition and diversity in relation to environmental and edaphic variables.A stratified random sampling approach was adopted to collect the field data from each forest.A total of 39 tree species belonging to 31 genera and 23 families were recorded from the sampling area(6 forest stands ×10 plots in each).Lauraceae with 5 species was the largest family while Quercus(4 species) emerged as the largest ***-area curve(asymptote) predicted more species than the observed number of *** analysis has shown that the two Abies pindrow dominant forest stands had the highest similarity in tree species *** tree stem density ranged from 540-1170 ha-1,basal area 23.01-55.94 m^2 ha-1,ShannonWiener diversity index 1.69-2.49,evenness index0.42-0.74,beta diversity 0.40-0.82 and similarity index 0.17-0.54 in the six studied ***-way indicator species analysis(TWINSPAN) identified four distinct tree communities in the study area with Daphniphyllum himalayense,Abies pindrow,Quercus oblongata,and Pinus roxburghii as indicator species of corresponding *** correspondence analysis(CCA) ascertained the TWINSPAN results and revealed the relation of tree species with environmental and edaphic *** phytosociological attributes of tree species varied from one forest stand to another;however,the tree species richness,density,and diversity peaked at intermediate elevation on the north *** reveal that tree composition and diversity in the montane forests of Garhwal Himalaya are influenced by both environmental(elevation and slope aspect)and soil variables(texture,water holding capacity,moisture content,available N,exchangeable P,and pH).This study will help in understanding the forest distribution across the western Himalaya,guiding the conservationists and policymakers in carrying out conservation-related management activities,designing the long-

关键词： Diversity Tree species Montane forests Soil properties Western Himalaya

ZnSe Nanoparticles Reinforced Biopolymeric Soy Protein Isolate Film

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Journal of Renewable Materials 2019年第8期7卷 749-761页

作者： Rakesh kumar Reshma Praveen Shikha Rani K.Sharma K.P.Tiwary K.dinesh kumar Department of Biotechnology Central University of South BiharGayaIndia Department of Applied Chemistry Birla Institute of Technology MesraPatna CampusPatnaIndia Department of Applied Physics Birla Institute of Technology MesraPatna CampusPatnaIndia Department of Materials Science&Engineering Indian Institute of TechnologyPatnaIndia

ZnSe nanoparticles have been synthesized by microwave assisted method by using zinc chloride,selenium powder and ethylene *** synthesized nanoparticles have been characterized structurally by FT-IR and XRD as well as morphological characterization was done by scanning electron microscope(SEM).The crystallite size after synthesis was obtained around 30 nm for pure ZnSe ***,from SEM micrograph,agglomerated ZnSe nanoparticles of irregular shapes were *** as-synthesized ZnSe nanoparticles at different contents(1 to 5%w/w w.r.t SPI)were incorporated into soy protein isolate(SPI)to produce reinforced SPI films by solution casting *** ZnSe nanoparticles incorporated SPI suspensions were subjected to molecular mass and specific conductivity *** and ZnSe nanoparticles incorporated SPI films were structurally and mechanically characterized by FT-IR and tensile properties,*** and water uptake studies were also carried out for ZnSe nanoparticles incorporated SPI *** tensile strength and modulus increased from 5.80 MPa to 10.06 MPa and 18.84 MPa to 94.70 MPa with the increase in the contents of ZnSe nanoparticles from 0 to 5%.Moreover,the results also revealed a good antibacterial effect in ZnSe nanoparticles incorporated SPI *** main application of nanoparticles incorporated SPI film will be in the area of biodegradable packaging.

关键词： Soy protein isolate ZnSe nanoparticles reinforced film tensile properties antimicrobial properties

Understand the local and regional contributions on air pollution from the view of human health impacts

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Frontiers of Environmental Science & Engineering 2021年第5期15卷 133-143页

作者： Yueqi Jiang Jia Xing Shuxiao Wang Xing Chang Shuchang Liu Aijun Shi Baoxian Liu Shovan kumar sahu State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing100084China State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing100084China Beijing Municipal Research Institute of Environment Protection Beijing100037China Beijing Key Laboratory of Airborne Particulate Matter Monitoring Technology Beijing Municipal Environmental Monitoring CenterBeijing100048China

The source-receptor matrix of PM_(2.5)concentration from local and regional sources in the Beijing-Tianjin-Hebei(BTH)and surrounding provinces has been created in previous ***,because the spatial distribution of concentration does not necessarily match with that of the population,such concentration-based source-receptor matrix may not fully reflect the importance of pollutant control effectiveness in reducing the PM_(2.5)-related health *** demonstrate that,we study the source-receptor matrix of the PM_(2.5)-related deaths instead,with inclusion of the spatial correlations between the concentrations and the *** advanced source apportionment numerical model combined with the integrated exposure-response functions is used for BTH and surrounding regions in *** observed that the relative contribution to PM_(2.5)-related deaths of local emissions was 0.75%to 20.77%larger than that of PM_(2.5)*** results address the importance of local emissions control for reducing health impacts of PM_(2.5)particularly for local *** of regional transport to PM_(2.5)-related deaths in rural area was 22%larger than that in urban area due to the spatial pattern of regional transport which was more related to the rural *** resulted in an environmental inequality in the sense that people staying in rural area with access to less educational resources are subjected to higher impacts from regional transport as compared with their more resourceful and knowledgeable urban *** unexpected benefit from the multi-regional joint controls is suggested for its effectiveness in reducing the regional transport of PM_(2.5)pollution thus mitigating the associated environmental inequality.

关键词： PM_(2.5) Regional transport Local emissions Health impact Environmental inequality