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In the article entitled “Poor Functional Outcome in Patients with Voluntary Knee Instability after Anterior Cruciate Ligament Reconstruction,”1) the name of one of the authors was incorrectly presented: Shalender Singh should read Shalendra Singh.
Lourembam, Deepak Singh,Singh, Asem Robinson,Sharma, T. Dhaneshor,Singh, Th Sudheeranjan,Singh, Thiyam Ramsing,Singh, Lisam Shanjukumar Asian Pacific Organization for Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.12
Northeastern India is a major nasopharyngeal carcinoma (NPC) high risk-area although the rest of the country has very low incidence. A case-control study of 105 NPC cases and 115 controls was conducted to identify the potential risk factors for NPC development in this region. Information was collected by interviewer about socio-demographic characteristics, cigarette smoking, alcohol consumption, dietary history, occupational history, and a family history of cancer. Epstein-Barr viral load was assayed from the blood DNA by real time PCR. Associations between GSTs genotypes, cytochrome P450 family including CYP1A1, CYP2E1 and CYP2A6 polymorphisms and susceptibility to relationship between the diseases were studied using PCR-RFLP assay. Results indicate that Epstein-Barr virus load was significantly higher in patients compared to controls (p<0.0001). Furthermore, concentration of blood EBV-DNA was significantly higher in advanced stage disease (Stage III and IV) than in early stage disease (Stage I and II) (p<0.05). Presence of CYP2A6 variants that reduced the enzyme activity was significantly less frequent in cases than controls. Smoked meat consumption, exposure to smoke, living in poorly ventilated house and alcohol consumption were associated with NPC development among the population of Northeastern India. Thus, overall our study revealed that EBV viral load and genetic polymorphism of CYP2A6 along with living practices which include smoked meat consumption, exposure to smoke, living in poorly ventilated houses and alcohol consumption are the potential risk factors of NPC in north eastern region of India. Understanding of the risk factors and their role in the etiology of NPC are helpful forpreventive measures and screening.
In this paper, a family of estimators for the finite population variance investigated by Srivastava and Jhajj (1980) is studied under two different situations of random non-response considered by Tracy and Osahan (1994). Asymptotic expressions for the biases and mean squared errors of members of the proposed family are obtained; in addition, an asymptotic optimum estimator(AOE) is also identified. Estimators suggested by Singh and Joarder (1998) are shown to be members of the proposed family. A correction to the Singh and Joarder (1998) results is also presented.
Rice Blast is the most devastating disease causing major yield losses in every year worldwide. It had been proved that using resistant rice varieties would be the most effective way to control this disease. Molecular screening and genetic diversities of major rice blast resistance genes were determined in 192 rice germplasm accessions using simple sequence repeat (SSR) markers. The genetic frequencies of the 10 major rice blast resistance genes varied from 19.79% to 54.69%. Seven accessions IC337593, IC346002, IC346004, IC346813, IC356117, IC356422 and IC383441 had maximum eight blast resistance gene, while FR13B, Hourakani, Kala Rata 1-24, Lemont, Brown Gora, IR87756-20-2-2-3, IC282418, IC356419, PKSLGR-1 and PKSLGR-39 had seven blast resistance genes. Twenty accessions possessed six genes, 36 accessions had five genes, 41 accessions had four genes, 38 accessions had three genes, 26 accessions had two genes, 13 accessions had single R gene and only one accession IC438644 does not possess any one blast resistant gene. Out of 192 accessions only 17 accessions harboured 7 to 8 blast resistance genes.
The alkaloid securinine was assessed against spore germination of some plant pathogenic and saprophytic fungi (Alternaria alternata, Alternaria brassicae, Alternaria brassicicola, Curvularia lunata, Curvularia maculans, Curvularia pallenscens, Colletotrichum musae, Colletotrichum sp., Erysiphe pisi, Helminthosporium echinoclova, Helminthosporium spiciferum, Heterosporium sp.). Spore germinations of all the tested fungi were inhibited. Alternaria brassicicola, C. lunata, C. pallenscens and H. spiciferum were highly sensitive as complete inhibition of spore germination was observed at very low concentrations (200 ppm).
Inheritance of resistance to Fusarium wilt (FW) disease caused by Fusarium udum was investigated in pigeonpea using four different long duration FW resistant genotypes viz., BDN-2004-1, BDN-2001-9, BWR-133 and IPA-234. Based on the $F_2$ segregation pattern, FW resistance has been reported to be governed by one dominant gene in BDN-2004-1 and BDN-2001-9, two duplicate dominant genes in BWR-133 and two dominant complimentary genes in resistance source IPA-234. Further, the efficacy of six simple sequence repeat (SSR) markers namely, ASSR-1, ASSR-23, ASSR-148, ASSR-229, ASSR-363 and ASSR-366 reported to be associated with FW resistance were also tested and concluded that markers ASSR-1, ASSR-23, ASSR-148 will be used for screening of parental genotypes in pigeonpea FW resistance breeding programs. The information on genetics of FW resistance generated from this study would be used, to introgress FW resistance into susceptible but highly adopted cultivars through marker-assisted backcross breeding and in conventional breeding programs.
Eu2+ and Eu2++Ln3+ doped SrAl4O7 nanophosphors were synthesized byrapid gel combustion process. The morphology of prepared phosphorswas examined with scanning and transmission electron microscopy. The phase identification and the crystal structures of nanophosphorswere studied using X-ray powder diffraction techniques. Luminescencecharacteristics of the prepared nanophosphors were analyzed on accountof excitation, emission and phosphorescence decay analysis. Theemission spectra demonstrated the broad green emission attributed to4f65d1→ 4f7 transition of the Eu2+ ions. The effect of codoping of sometrivalent lanthanide (Dy3+, Pr3+ and Y3+) ions were investigated forimproving the emission intensity and phosphorescence decay time ofthe basic lattice of SrAl4O7:Eu2+ phosphors. The synthesized materialshad enhanced bright luminescent properties that could suitably beapplied for display as well as photovoltaic applications.
Inheritance of resistance to Fusarium wilt (FW) diseasecaused by Fusarium udum was investigated in pigeonpeausing four different long duration FW resistantgenotypes viz., BDN-2004-1, BDN-2001-9, BWR-133and IPA-234. Based on the F2 segregation pattern, FWresistance has been reported to be governed by onedominant gene in BDN-2004-1 and BDN-2001-9, twoduplicate dominant genes in BWR-133 and two dominantcomplimentary genes in resistance source IPA-234. Further, the efficacy of six simple sequence repeat (SSR)markers namely, ASSR-1, ASSR-23, ASSR-148, ASSR-229, ASSR-363 and ASSR-366 reported to be associatedwith FW resistance were also tested and concluded thatmarkers ASSR-1, ASSR-23, ASSR-148 will be used forscreening of parental genotypes in pigeonpea FW resistancebreeding programs. The information on geneticsof FW resistance generated from this study would beused, to introgress FW resistance into susceptible buthighly adopted cultivars through marker-assisted backcrossbreeding and in conventional breeding programs.
This study aims to determine the effect of fly ash with a high replacing ratio of clay on the radiation shielding properties of bricks. Some interaction parameters (mass attenuation coefficients, half value layer, effective atomic number, effective electron density, and absorption efficiency) of clay fly ash bricks were measured with a NaI(Tl) detector at 661.6 keV, 1173.2 keV, and 1332.5 keV. For the investigation of their shielding behavior, fly ash bricks were molded using an admixture to clay. A narrow beam transmission geometry condition was used for the measurements. The measured values of these parameters were found in good agreement with the theoretical calculations. The elemental compositions of the clay fly ash bricks were analyzed by using an energy dispersive X-ray fluorescence spectrometer. At selected energies the values of the effective atomic numbers and effective electron densities showed a very modest variation with the composition of the fly ash. This seems to be due to the similarity of their elemental compositions. The obtained results were also compared with concrete, in order to study the effect of fly ash content on the radiation shielding properties of clay fly ash bricks. The clay fly ash bricks showed good shielding properties for moderate energy gamma rays. Therefore, these bricks are feasible and eco-friendly compared with traditional clay bricks used for construction.
Navigation systems are extensively used for location identification and route finding. The efficiency of navigation systems is highly affected by map matching algorithms. This paper provides a review of major map matching algorithms. The performance of reviewed algorithms was further evaluated with the help of an empirical study. A dataset of forty seven kilometers was collected to deploy various map matching algorithms so as to measure their performance. A comparison of geometric, topological and Kalman filter based map matching algorithms was performed on the same dataset. It was concluded that performance of Kalman filter algorithm provide better results in comparison to geometrical and topological algorithms.