检索结果-南通市图书馆

A 10 Years Comparative Study to Assess Trends in Seroprevalence of Transfusion Transmitted Infections among Blood Donors at Gwalior, India

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Blood Diseases 2014年第2期4卷 24-32页

作者： dharmesh chandra sharma Sunita Rai Savita Bharat Sudha Iyenger Shruti Gupta Bharat Jain Department of Microbiology Gajra Raja Medical College Gwalior India Department of Pathology Blood Bank Gajra Raja Medical College Gwalior India

Introduction: Transfusion Transmitted Infections (TTIs) threaten safety of the recipients and the community as a whole and are the subject of real concern worldwide. Aims and Objectives: To know the prevalence of transfusion transmitted infections amongst the blood donors, to evaluate the changing trends of TTIs and to compare these observations within the study as well as with the other relevant studies. Place and Duration of Study: This study was carried out at Blood Bank, Department of Pathology, Gajra Raja Medical College, Gwalior, India, from January 2004 to December 2013 (ten years). Materials and Methods: In this study 122,006 voluntary and replacement donations were screened for TTIs;HIV, HBV, HCV, Syphilis, Malaria and their seroprevalence was calculated. Further study was divided in Group “A” (from 2004 to 2008) and Group “B” (from 2009 to 2013) to compare the results. Results: Out of total 122,006 blood units collected, 79,750 (65.3%) were voluntary and 42,256 (34.7%) were replacement donors. The seropositivity of TTIs in the entire study, in group “A” and in Group “B” was 3.26% (3985/122,006) (p = 0.000005), 2.25% (1238/54,874) (p = 0.000005) and 4.09% (2747/67,123) (p = 0.000005) respectively. In Group “A” and “B” seroprevalence of HIV, HBV, HCV, Syphilis and Malaria was 0.29%, 1.16%, 0.61%, 0.06%, 0.11% and 0.13%, 3.15%, 0.24%, 0.17%, 0.03% respectively. Conclusion: Our study concluded that there was significant increase in seroprevalence of HBV and syphilis whereas decreasing pattern in HIV, HCV and Malaria was observed in last five years as compared to previous five years among the blood donors.

关键词： Transfusion Transmitted Infections (TTIs) Blood Donor (BD) Human Immunodeficiency Virus (HIV) Hepatitis B Virus (HBV) Hepatitis C Virus (HCV) Syphilis and Malaria

Efficacy of Whole Blood Reconstituted (WBR) in Exchange Transfusion (ET) in Hemolytic Disease of New Born (HDN) —A Study of 110 Cases

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Blood Diseases 2013年第1期3卷 15-20页

作者： dharmesh chandra sharma Sunita Rai Sudha Iyengar Bharat Jain Satya Sao Ajay Gaur Rahul Sapra Department of Pathology Gajra Raja Medical College Gwalior India Emergency Blood Bank Gwalior India Kilkari Nursing Home Gwalior India

Aim: This study was aimed to review and establish the practice of exchange transfusion (ET) with whole blood reconstituted (WBR) in hemolytic disease of newborn (HDN). Objectives: To observe fall in indirect serum bilirubin, correction of anemia and comparison with related studies. Background: Hemolytic disease of the Newborn is characterized by presence of IgG antibodies in maternal circulation, which causes hemolysis in the fetus by crossing the placenta and sensitizing red cells for destruction by macrophages in the fetal spleen with consequent hyperbilirubinemia. Exchange transfusion with or without phototherapy is the method of choice for treating the newborn with on going hemolysis Methods/Materials: Sample size consisted of 110 neonates in whom 119 exchange transfusions were carried out with WBR. WBR was prepared by suspending O Rhesus-D (RhD) positive/negative cells (compatible with neonate’s/ mother’s serum) in AB plasma. Double volume exchange transfusion(s) were carried out through umbilical vein by push-pull technique. Results: Out of 110 cases, 61 (55.5%) were of RhD HDN whereas ABO and other group HDN cases were 30 (27.3%) and 19 (17.3%) respectively. An average post-ET fall in indirect serum bilirubin by 54.6% and correction of anemia by3.7 gm/dl were reported in the study. Conclusion: An average post-ET fall in indirect serum bilirubin and correction of anemia was found to be more significant when compared to other studies. Hence we recommend exchange transfusion in HDN with WBR to obtain reasonable fall in indirect serum bilirubin and high average rate of correction of anemia.

关键词： Whole Blood Reconstituted (WBR) Hemolytic Disease of Newborn (HDN) Exchange Transfusion (ET) Hyperbilirubinemia Anemia Correction

Fabrication of Self-cleaning Antireflective Polymer Surfaces by Mimicking Underside Leaf Hierarchical Surface Structures

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Bionic Engineering 2019年第3期16卷 400-409页

作者： Srinadh Mattaparthi chandra Shekhar sharma Creative & Advanced Research Based on Nanomaterials (CARBON) Laboratory Department of Chemical Engineerings Indian Institute of Technology Hyderabad Kandi Telangana 502285 India

In this work, we utilized underside of four different plant leaves with different scale of hierarchical surface roughness to fabricate large area self-cleaning antireflective polymer surfaces. A simple and precise two-step soft-lithography replica molding technique was deployed by using polydimethylsiloxane (PDMS) polymer as a replicating material. In the first step, a negative PDMS replica was fabricated by using the underside of an original leaf as a template material. In the second step, a positive PDMS replica was fabricated through a negative PDMS replica used as a template. In order to study the non-wetting and light trapping properties, as-replicated polymer surfaces were characterized using Scanning Electron Microscopy (SEM), contact angle goniometer, and UV-Vis spectroscopy. SEM images confirmed the successful replication of complex hierarchical structures while contact angle measurement studies established retaining high non-wetting properties in polymer replicas. Optical studies suggest near zero reflection in normal mode and less than 5% diffuse reflection when measured using integrated sphere mode. These results have been correlated and explained with the air-liquid fraction and roughness factor as measured using three-dimensional optical profilometer.

关键词： biomimicking natural leaf replica molding non-wetting light trapping hierarchical roughness

Ethanol steam reforming study over ZSM-5 supported cobalt versus nickel catalyst for renewable hydrogen generation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2019年第3期27卷 677-684页

作者： Ashutosh Kumar Ram Prasad Yogesh chandra sharma Department of Chemistry Indian Institute of Technology (Banaras Hindu University) Varanasi Department of Chemical Engineering & Technology Indian Institute of Technology (Banaras Hindu University) Varanasi

The renewable hydrogen generation through ethanol steam reforming is one of the anticipated areas for sustainable hydrogen generation. To elucidate the role of Ni and Co with ZSM-5 support, catalysts were prepared by wet impregnation method and ethanol steam reforming(ESR) was performed. The catalysts were characterized by HR-XRD, ATR–FTIR, HR-SEM, TEM with SAED, EDAX, surface area analyzer and TPR. It had shown complete ethanol conversion at 773 K, but the selectivity in hydrogen generation was found higher for 10% Ni/ZSM-5 catalyst as compared to 10% Co/ZSM-5. The 10% Ni/ZSM-5 catalyst has about 72% hydrogen selectivity at temperature 873 K. It indicates that Ni is a more sustainable catalyst as compared to Co with ZSM-5 support for ESR. The C_2H_4 was found major undesirable products up to 823 K temperature. Nevertheless, the 10% Ni/ZSM-5 catalyst had shown its stability for high temperature(873 K) ESR performance.

关键词： Ethanol steam reforming Zeolite Hydrogen Renewable energy Catalyst

Some Observations about the MOLSCAT

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2015年第12期64卷 731-734页

作者： Mohit Kumar sharma Monika sharma Suresh chandra School of Studies in Physics Jiwaji University Physics Department Lovely Professional University

For calculation of cross sections for collisional transitions between rotational levels in a molecule,a computer code,MOLSCAT is *** the transitions between rotational levels in H_2 CS due to collisions with He atom,we have calculated cross sections under the CS approximation,for example,for total energy 11 cm^(-1).The calculations have been done for the single energy 11 cm"1 and for ten *** have found that the cross sections for the single energy 11 cm^(-1),differ from those in the first seven combinations,but are in agreement with those in the last three *** reason for the difference in the results appears that the MOLSCAT uses the intermediate data of calculations for one energy,in the calculations for other *** agreement with the last three combinations may be understood that when the energy of combination is in the decreasing trend,the cross sections for the first(common)energy are *** may be suggested to run the MOLSCAT for a single energy at a time.

关键词： ISM: molecules collisional transitions MOLSCAT

Wind pollination in Pinus roxburghii

在线全文

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2007年第1期17卷 32-38页

作者： Vinod Prasad KHANDURI chandra Mohan sharma Department of Forestry Mizoram University Aizawl(Mizoram)India Department of Forestry HNB Garhwal University Srinagar Garhwal-246 174(Uttaranchal)India

Stigmatic pollen load and pollen concentration in the air were studied in the natural population of Pinus roxburghii at Ashtavakra (900 m asl), in the Pauri forest division of Garhwal Himalaya, India. The results reflect diurnal pollen occurrence in P. roxburghii , with the strong significant correlations between pollen concentrations in the air and wind speed, air temperature and relative air humidity. A significant correlation was also observed between microsporangium dehiscence and pollen occurrence in the air. The maximum concentration of pollen grains in the air and higher rates of pollen deposition onto the megasporophylls were between 12 pm and 16 pm of the day, which conforms the best time for pollination in a day in P. roxburghii. The receptivity of Ovulate strobili varied from 3 to 5 days, however, the bagged strobili remained receptive up to 6 days.

关键词： ovulate strobili pollen cones pollination receptivity wind speed P. roxburghii.

MOLECULAR DYNAMICS SIMULATION OF POLYMER/CARBON NANOTUBE COMPOSITES

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Acta Mechanica Solida Sinica 2015年第4期28卷 409-419页

作者： Sumit sharma Rakesh chandra Pramod Kumar Navin Kumar Department of Mechanical Engineering Dr.B.R.Ambedkar National Institute of Technology School of Mechanical Materials & Energy Engineering (SMMEE) Indian Institute of Technology

In this paper, we present classical molecular dynamics （MD） simulations of model polymer/CNT composites constructed by embedding a single wall （10,10） CNT into two different amorphous polymer matrices： poly（methyl methacrylate） and poly{（m-phenylene-vinylene）-co- [（2,5-dioctoxy-p-phenylene） vinylene]}, respectively, with different volume fractions. The simulation results support the idea that it is possible to use CNTs to mechanically reinforce an appropri- ate polymer matrix, especially in the longitudinal direction of the nanotube. The comparison of the simulation results with the macroscopic rule-of-mixtures for composite systems showed that for strong interfacial interactions, there can be large deviations of the results from the rule-of- mixtures. In order to verify this study, results obtained have been compared with those given by Elliott and Han （2007）.

关键词： nano-structures elasticity mechanical properties computational modeling

Strategies to mitigate the adverse effect of drought stress on crop plants-influences of soil bacteria:A review

在线全文

学校读者我要写书评

暂无评论

Pedosphere 2021年第3期31卷 496-509页

作者： Priyanka chandra Amoolya WUNNAVA Pooja VERMA Amaresh chandra Rakesh Kumar sharma Indian Council of Agricultural Research(ICAR) Central Soil Salinity Research InstituteKarnalHaryana 132001India Department of Biosciences Manipal University JaipurRajasthanJaipur 303007India Indian Council of Agricultural Research(ICAR) Indian Institute of Sugarcane ResearchUttar PradeshLucknow 226002India

Drought stress affects plant growth and causes significant issues in meeting global demand for food crops and *** can cause physiological,physicochemical,and morphological changes in plants,which negatively affects plant growth and *** combat this under the increasing global threat of water shortage and rapid population expansion,it is crucial to develop strategies to meet global food *** growth-promoting rhizobacteria(PGPR)may provide a safe solution to enhancing crop yields through various *** soil bacteria can provide drought tolerance to crop plants,allowing them to survive and thrive in water-scarce *** of phytohormones,free radical-scavenging enzymes,and stress-combating enzymes that can increase tolerance to drought-induced stress are key features of plant-associated microbial *** review summarizes the beneficial properties of microbes that help plants tolerate water scarcity and highlights the bacterial mechanisms that enhance drought tolerance in plants.

关键词： abiotic stress agricultural yield drought tolerance food crops microbe PGPR rhizobactoria water deficit

Gender plasticity uncovers multiple sexual morphs in natural populations of Cedrus deodara (Roxb.) G. Don

在线全文

学校读者我要写书评

暂无评论

Ecological Processes 2021年第1期10卷 459-469页

作者： Vinod Prasad Khanduri Arun Sukumaran chandra Mohan sharma Department of Forestry College of ForestryVCSG Uttarakhand University of Horticulture and ForestryRanichauriTehri GarhwalUttarakhand 249199India Present Address:State Farming Corporation of Kerala Chithalvetty EstateKalanjoor KollamKeralaIndia.

Background:The expression of gender in gymnosperms is challenging because the extent of variability in gender segregations in tree crowns and selection pressure of nature can modify the gender through ***:An in-depth investigation on spatial segregation of genders in tree crowns and sex expression of a total of 500 trees in five different natural populations of Cedrus deodara was carried out and verified the occurrence of subdioecious(co-existence of male,female,and monoecious)genders in ***:Five different sexual morphs were apparent among the 500 selected individuals as(1)pure male(M):bearing only male strobili in the whole crown with 22.2%;(2)pure female(F):bearing only female strobili in the whole crown with 12.4%;(3)mixed-monoecious(MM):bearing both male and female strobili with 13.6%;(4)predominantly female(PF)with 25.6%;and(5)predominantly male(PM)with 26.2%.The occurrence of multiple sexual morphs resulted from the complex selection pressure,which increased the stability of the *** segregation of genders in crown layers deemed to increase the fitness that may be a mechanism for accelerating *** results of the study suggest that the subdioecious gender expression in *** is evolved through the monoecy–paradioecy *** production of male strobili revealed non-significant effect of tree sizes whereas a significant effect was observed for the production of female *** study established that the total pollen and seed outputs in *** changed frequently according to gender ***:The size of the tree,resource availability,sex allocation,plant architecture,gender segregation in crowns,and habitat conditions are the prominent causes for gender plasticity.

关键词： Gender Sex expression Gender segregation Strobili Pre-fertilisation Monoecy Dioecy