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      • SCIESCOPUSKCI등재

        STUDY OF COMPARATIVE MILK PRODUCTION AND REPRODUCTION OF JERSEY CATTLE UNDER USA AND PAKISTAN CONDITIONS

        Nawaz, M.,Anwar, M.,Mirza, M.A.,Nawaz, R. Asian Australasian Association of Animal Productio 1993 Animal Bioscience Vol.6 No.4

        In 1985, fifty Jersey cows were imported to Pakistan from United States of America (USA). This paper compares milk production and reproduction performance of imported cows and their daughters under USA and Pakistan conditions. The imported cows which had yielded 5,858 kg, of milk (305 d lactation) in the USA produced only 3,192 kg, at NARC. The milk production of their daughters averaged 2,617 kg, being 22% lower than their mothers under the same environment at NARC. Year and season of calving had no significant effects on milk production. Average milk production of the first lactation was 10% lower than the mean of the second, third and fourth lactations, but, the differences between lactation means were non-significant. Mean calving interval in the USA was 385 days, whereas the same cows had a longer (p<.01) calving interval of 490 days at NARC. The calving interval of the daughters was longer (452 d; p<.01) than their mothers calving interval in the USA, and shorter (p<.01) than their mothers calving interval in Pakistan. The low age at first calving suggests that locally born Jersey cows were not reproductively disadvantaged by the local environment and nutrition, suggesting the adaptability of this breed in the new environment.

      • Efficient dye sensitized solar cell and supercapacitor using 1-ethyl 3-methyl imidazolium dicyanamide incorporated PVDF-HFP polymer matrix

        Nawaz, A.,Sharif, R.,Rhee, H.W.,Singh, P.K. Korean Society of Industrial and Engineering Chemi 2016 Journal of industrial and engineering chemistry Vol.33 No.-

        <P>Electrode and electrolytes are always playing a key role in developing good efficient devices. This paper reports the synthesis, characterization and application of low viscosity ionic liquid (1-ethyl 3-methyl imidazolium dicyanamide) incorporated into polymer matrix (PVDF-HFP). The samples were characterized using various experimental tools. Complex impedance spectroscopy shows that conductivity of polymer host increases with increasing ionic liquid (IL) concentration attains maxima and then decreases. Optical microscopy and scanning electron microscopy (SEM) reveals the reduction of crystalline matrix of polymer host by adding IL. The primarily fabricated devices using maximum conductivity film affirms that this material is promising candidate for dye sensitized solar cell (DSSC) and supercapacitor application. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.</P>

      • Genetic diversity and population structure of Korean wild soybean (<i>Glycine soja</i> Sieb. and Zucc.) inferred from microsatellite markers

        Nawaz, Muhammad Amjad,Yang, Seung Hwan,Rehman, Hafiz Mamoon,Baloch, Faheem Shehzad,Lee, Jeong Dong,Park, Jong Hyun,Chung, Gyuhwa Elsevier 2017 Biochemical systematics and ecology Vol.71 No.-

        <P><B>Abstract</B></P> <P>Korea is considered one of the centers of genetic diversity for cultivated as well as wild soybeans. Natural habitats of wild soybeans are distributed across the Korean mainland and the islands surrounding the Korean peninsula. In this study, the genetic diversity of 100 mainland Korean wild soybean accessions was evaluated by using 42 simple sequence repeat markers covering 17 soybean chromosomes. All analyzed loci were polymorphic and a total of 114 alleles were found. The observed average genetic diversity was low (0.4). The results showed that the 100 selected accessions did not exactly follow the geographical distribution. These results were further confirmed by the phylogeny inferred from five morphological characteristics (i.e., leaf shape, leaf area, plant shape, seed area, and 100-seed weight). Together, the genetic and morphological evaluations suggested conclusively that the selected population did not follow the geographical distribution pattern. The present study could provide useful information for the <I>ex situ</I> conservation and exploitation of wild soybean accessions in soybean improvement stratagems, and will aid in further understanding about the phylogeography of the species in the Korean center of diversity.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Microsatellite analysis and morphological characterization of Korean wild soybean was done. </LI> <LI> Korean mainland wild soybeans have low genetic diversity. </LI> <LI> Selected populations do not follow geographical distribution pattern. </LI> </UL> </P>

      • SCISCIESCOPUS

        Genome and transcriptome-wide analyses of cellulose synthase gene superfamily in soybean

        Nawaz, Muhammad Amjad,Rehman, Hafiz Mamoon,Baloch, Faheem Shehzad,Ijaz, Babar,Ali, Muhammad Amjad,Khan, Iqrar Ahmad,Lee, Jeong Dong,Chung, Gyuhwa,Yang, Seung Hwan G. Fischer 2017 Journal of plant physiology Vol. No.

        <P><B>Abstract</B></P> <P>The plant cellulose synthase gene superfamily belongs to the category of type-2 glycosyltransferases, and is involved in cellulose and hemicellulose biosynthesis. These enzymes are vital for maintaining cell-wall structural integrity throughout plant life. Here, we identified 78 putative cellulose synthases (CS) in the soybean genome. Phylogenetic analysis against 40 reference <I>Arabidopsis</I> CS genes clustered soybean CSs into seven major groups (CESA, CSL A, B, C, D, E and G), located on 19 chromosomes (except chromosome 18). Soybean CS expansion occurred in 66 duplication events. Additionally, we identified 95 simple sequence repeat makers related to 44 CSs. We next performed digital expression analysis using publically available datasets to understand potential CS functions in soybean. We found that CSs were highly expressed during soybean seed development, a pattern confirmed with an Affymatrix soybean IVT array and validated with RNA-seq profiles. Within CS groups, CESAs had higher relative expression than CSLs. Soybean CS models were designed based on maximum average RPKM values. Gene co-expression networks were developed to explore which CSs could work together in soybean. Finally, RT-PCR analysis confirmed the expression of 15 selected CSs during all four seed developmental stages.</P>

      • Photodegradation of microcystin-LR using graphene-TiO<sub>2</sub>/sodium alginate aerogels

        Nawaz, Mohsin,Moztahida, Mokrema,Kim, Jiho,Shahzad, Asif,Jang, Jiseon,Miran, Waheed,Lee, Dae Sung Elsevier 2018 Carbohydrate polymers Vol.199 No.-

        <P><B>Abstract</B></P> <P>In this study, sustainable graphene oxide-TiO<SUB>2</SUB>/sodium alginate and reduced graphene oxide-TiO<SUB>2</SUB>/sodium alginate aerogels were synthesized and the potential of these aerogels was investigated for microcystin-LR degradation in aqueous solution. Along with the role of alginate in the synthesis of aerogels, effects of different concentrations of photocatalyst, photolysis, pH, and combination of TiO<SUB>2</SUB> (anatase)/Degussa P25 with graphene were investigated in lieu of microcystin-LR photodegradation.The complete degradation of microcystin-LR was attained in case of reduced graphene oxide-TiO<SUB>2</SUB>/sodium alginate aerogel—not in graphene oxide-TiO<SUB>2</SUB>/sodium alginate aerogel case—by the synergistic effect of adsorption and photodegradation. The recyclability study of reduced graphene oxide-TiO<SUB>2</SUB>/sodium alginate aerogel demonstrated high stability and photoactivity and the degradation efficiency was not much hampered during six consecutive cycles of degradation reaction. The possible fragmentation pathways were also proposed based on identified intermediate products. High adsorption and degradation synergy and ease of separation/recycling of reduced graphene oxide-TiO<SUB>2</SUB>/sodium alginate aerogel can make it a suitable option for removing microcystin-LR from water systems.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Sodium alginate helped to synthesize a robust graphene-TiO<SUB>2</SUB> aerogel. </LI> <LI> Graphene-TiO<SUB>2</SUB>/sodium alginate aerogel efficiently degraded microcystin-LR. </LI> <LI> Synthesized aerogel was highly recyclable without producing any secondary pollution. </LI> <LI> In microcystin-LR degradation pathway, significant role of OH radicals was found. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

      • A chloroplast-targeted cabbage DEAD-box RNA helicase BrRH22 confers abiotic stress tolerance to transgenic <i>Arabidopsis</i> plants by affecting translation of chloroplast transcripts

        Nawaz, Ghazala,Lee, Kwanuk,Park, Su Jung,Kim, Yeon-Ok,Kang, Hunseung Elsevier 2018 Vol. No.

        <P><B>Abstract</B></P> <P>Although the roles of many DEAD-box RNA helicases (RHs) have been determined in the nucleus as well as in cytoplasm during stress responses, the importance of chloroplast-targeted DEAD-box RHs in stress response remains largely unknown. In this study, we determined the function of BrRH22, a chloroplast-targeted DEAD-box RH in cabbage (<I>Brassica rapa</I>), in abiotic stress responses. The expression of <I>BrRH22</I> was markedly increased by drought, heat, salt, or cold stress and by ABA treatment, but was largely decreased by UV stress. Expression of BrRH22 in <I>Arabidopsis</I> enhanced germination and plantlet growth under high salinity or drought stress. BrRH22-expressing plants displayed a higher cotyledon greening and better plantlet growth upon ABA treatment due to decreases in the levels of <I>ABI3, ABI4,</I> and <I>ABI5</I>. Further, BrRH22 affected translation of several chloroplast transcripts under stress. Notably, BrRH22 had RNA chaperone function. These results altogether suggest that chloroplast-transported BrRH22 contributes positively to the response of transgenic <I>Arabidopsis</I> to abiotic stress by affecting translation of chloroplast genes via its RNA chaperone activity.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Expression of cabbage RNA helicase BrRH22 is differentially affected by abiotic stresses. </LI> <LI> BrRH22 is localized to chloroplasts and possesses RNA chaperone activity. </LI> <LI> BrRH22 plays a positive role in seed germination and seedling growth under stress conditions. </LI> <LI> BrRH22 enhances seedling growth and cotyledon greening by decreasing <I>ABI3, ABI4,</I> and <I>ABI5.</I> </LI> </UL> </P>

      • KCI등재

        Mining public opinion: a sentiment based forecasting for democratic elections of Pakistan

        Nawaz Asif,Ali Tariq,Hafeez Yaser,Rehman Saif ur,Rashid Muhammad Rizwan 대한공간정보학회 2022 Spatial Information Research Vol.30 No.1

        Twitter has emerged as outstanding and most prominent social media in today’s technological age. The data proliferates in quick and words with its activities trigger get fast responses from the users. This platform is perfect for promoting political perspectives, particularly when election campaigns are on its peak. Political trends on Twitter media has been contemplated in the course of recent years. In the past research, both supervised and unsupervised methodologies have been used to analyze the Twitter trends. Most of the Tweet classification approaches utilized built in Dictionaries, Naı¨ve Bayes, K-Nearest Neighbors (KNN), decision tree and Support Vector Machines (SVM) classifiers. However, in case of democratic election these trends can be mined to predict the winning party. However, all such approaches produce poor results due to language issues, low accuracy, limited access to internet and lower literacy rate in less developed countries such as Pakistan. This research study, find the best possible way for collection of tweets related to different political parties and build a prediction model that may analyze sentiments and opinions expressed by peoples in their Tweets. In this research work, a prediction based model along with novel similarity measure has been proposed to predict the election results of political parties in Pakistan. The proposed work is composed of data collection, preprocessing, aspect extraction, aspect refinement and final prediction using Bayesian theorem. Form the experimental results, it is concluded that proposed approach perform better than existing techniques by obtaining almost 98% accuracy and efficiently cover the limitations of existing studies.

      • KCI등재

        Design of phosphated cross-linked microspheres of bael fruit gum as a biodegradable carrier

        Nawaz Mahammed,Shailesh Thirumaleshwar,D. V. Gowda,Rohan D. Deshpande 대한약학회 2015 Archives of Pharmacal Research Vol.38 No.1

        Present work was aimed at designing of phosphatedcross-linked microspheres of bael fruit gum (BFG)by emulsification method using sodium-tri-meta phosphateas a cross-linking agent for treatment of colon cancer using5-fluorouracil as model drug. Stirring speed was found tobe 1,000 rpm for about 5 h to be optimal to obtain reproduciblemicrospheres. It was found that there is an increasein particle size as polymer concentration is increasedwhereas a reduction in particle size was observed as thereis increase in stirring speed. Cross-linked BFG microsphereswere successfully prepared by emulsificationmethod. Optimum surfactant concentration was found to be2 % w/w. Scanning electron microscopy studies showedthat the drug-loaded microspheres were non-aggregatedand in spherical shape. Differential scanning calorimetryand Fourier transform infrared-spectroscopy studiesshowed that drug and excipients are compatible. Releasestudies showed that drug release was more profound incecal medium induced with enzymes causing degradationof the cross linked BFG than that of the release showed insimulated intestinal fluid. Stability studies showed thatthere were no significant changes in the drug content andphysical appearance of microspheres.

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