890 research outputs found

    CITATION PATTERN IN Ph.D. THESES IN THE FIELD OF PHILOSOPHY: A STUDY OF PANJAB UNIVERSITY, CHANDIGARH

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    Abstract The present study is based on the 8223 citations appended in the 26 doctoral theses of Philosophy submitted to Panjab University, Chandigarh, for the award of doctoral degree during 2002-2012. The main purpose of this study was to investigate authorship pattern of the citations, type and form of literature cited, and to compile a ranked list of journals in Philosophy. The study revealed that books were the most preferred sources of information used by the researchers in the field of Philosophy accounting for 40.67% of total citations, followed by journals with 17.99% citations. Badford’s law of scattering was used to identify the core journals in the field of Philosophy. Keywords: Citation Analysis; Authorship Pattern; Journals Ranking; Bibliographic Form; Ph.D. Theses; Panjab University; Philosophy

    Evaluation of native rhizobacteria as promoters of plant growth for increased yield in lentil (Lens culinaris)

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    Six rhizobacterial isolates obtained from lentil rhizospheric soils were characterized and found belonging to genera Bacillus and Pseudomonas. The isolates were evaluated for their plant growth and antagonistic traits. Maximum catechol-type siderophore was produced by B-40 (97μg/ml) and hydroxamate-type siderophore by B-20 (129.5μg/ml). A wide variation in the phosphate-solubilizing efficiency (7.1-34.4 mg/100ml) was observed. Further, all these isolates were able to secrete phytohormone Indole-acetic-acid which ranged from 12.7-106.1μg/ml. On the basis of their PGP traits B-40 and P-1 were selected for field studies. Field experiments were carried out in order to test the effect of dual inoculations (selected PGPRs and Rhizobium sp. along with check strain KB-133) on lentil growth. The system productivity was highest in case of dual inoculations of PGPRs with Rhizobium. The grain yield with dual inoculations of Rhizobium with B-40 (1703 kg/ha) and P-1 (1679 kg/ha) was statistically on par to dual inoculation with KB-133 (1698 kg/ha). These data suggest that B-40 and P-1 can act synergistically with R. leguminosarum in promoting lentil growth

    Continuous and Discrete Time Analysis of Network in NS2

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    A Simulator is nothing but a system which can imitate the working of a real world process and a network simulator is also the system or the software which can establish and analyze a network similar to the network of the real world. There are basically two network simulation methods available, event-driven simulation and time-driven simulation. Both these methods have their own benefits like less simulation time, high efficiency, less operational overhead, user-friendly etc. depending on the application. Different methods of network simulation have different effect on the network parameters. This paper analyses the effect on the network parameters by converting the event-driven simulation of NS2 to time-driven simulation in Matlab

    CITATION PATTERN IN Ph.D. THESES IN THE FIELD OF PHILOSOPHY: A STUDY OF PANJAB UNIVERSITY, CHANDIGARH

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    Abstract The present study is based on the 8223 citations appended in the 26 doctoral theses of Philosophy submitted to Panjab University, Chandigarh, for the award of doctoral degree during 2002-2012. The main purpose of this study was to investigate authorship pattern of the citations, type and form of literature cited, and to compile a ranked list of journals in Philosophy. The study revealed that books were the most preferred sources of information used by the researchers in the field of Philosophy accounting for 40.67% of total citations, followed by journals with 17.99% citations. Badford’s law of scattering was used to identify the core journals in the field of Philosophy. Keywords: Citation Analysis; Authorship Pattern; Journals Ranking; Bibliographic Form; Ph.D. Theses; Panjab University; Philosophy

    Tools and Techniques Used for Prioritizing Test Cases in Regression Testing

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    Testing is a very expensive task in term of cost, effort and time and it is necessary step of software development because without testing software cannot be completed. Regression testing is a type of software testing which is widely used in software development and maintenance phase; it also occupies a large portion of the software maintenance budget. There are many software testing tools and Technique that is used to test the software program. This research paper defines some testing approach which reduced person effort and time in regression testing. Software systems are change regularly during development and maintenance face. After software is modified regression testing is applied to software to ensure that it behaves intended and modifications not negatively impacts its original functionality. This paper focus on improving the performance of regression testing by using these approach for regression testing by computing coverage data for evolving software using dataflow analysis and execution tracing

    BIOACTIVITIES OF THE ETHYL ACETATE EXTRACT OF RHODOCOCCUS QINGSHENGII STRAIN BJC15-A38 AN ENDOPHYTE OF AZADIRACHTA INDICA A. JUSS

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    Objective: This study evaluated the antidiabetic activities of the ethyl acetate-methanol (4:1) extract (EA) of Rhodococcus qingshengii strain BJC15-A38 supernatant.Methods: In vitro alpha-amylase and alpha-glucosidase inhibitory assays, were used to determine the antidiabetic activity of EA (100, 250, 500, 750 and 1000 μg/ml). Also, the total phenol content of the extract was determined, followed by understanding the mode of α-amylase inhibition.Results: The crude extract from Azadirachta indica A. Juss. endophytic actinomycete Rhodococcus qingshengii strain BJC15-A38 was found to have significant inhibition against α-amylase (IC50 = 65.93 µg/ml) and α-glucosidase (IC50 = 929.56 µg/ml). The total phenol content of the crude was found to be 97.25±6.47 and 15.40±0.43 mg/g of the extract in terms of catechol and gallic acid equivalents respectively. Purification of the extract was carried out using silica gel column chromatography. Kinetic analysis revealed the mixed competitive with mixed competitive of inhibition towards α-amylase.Conclusion: The findings suggest that the extract of Rhodococcus qingshengii strain BJC15-A38 possesses antidiabetic effects

    Chimeras of the ABC drug transporter Cdr1p reveal functional indispensability of transmembrane domains and nucleotide-binding domains, but transmembrane segment 12 is replaceable with the corresponding homologous region of the non-drug transporter Cdr3p

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    The molecular basis of the broad substrate recognition and the transport of substrates by Cdr1p, a major drug efflux protein of Candida albicans, is not well understood. To investigate the role of transmembrane domains and nucleotide-binding domains (NBDs) of Cdr1p in drug transport, two sets of protein chimeras were constructed: one set between homologous regions of Cdr1p and the non-drug transporter Cdr3p, and another set consisting of Cdr1p variants comprising either two N- or two C-terminal NBDs of Cdr1p. The replacement of either the N- or the C-terminal half of Cdr1p by the homologous segments of Cdr3p resulted in non-functional recombinant strains expressing chimeric proteins. The results suggest that the chimeric protein could not reach the plasma membrane, probably because of misfolding and subsequent cellular trafficking problems, or the rapid degradation of the chimeras. As an exception, the replacement of transmembrane segment 12 (TMS12) of Cdr1p by the corresponding region of Cdr3p resulted in a functional chimera which displayed unaltered affinity for all the tested substrates. The variant protein comprising either two N-terminal or two C-terminal NBDs of Cdr1p also resulted in non-functional recombinant strains. However, the N-terminal NBD variant, which also showed poor cell surface localization, could be rescued to cell surface, if cells were grown in the presence of drug substrates. The rescued chimera remained non-functional, as was evident from impaired ATPase and efflux activities. Taken together, the results suggest that the two NBDs of Cdr1p are asymmetric and non-exchangeable and that the drug efflux by Cdr1p involves complex interactions between the two halves of the protein

    STUDY OF PANCHVALKAL KASAYA IN VAGINAL DISCHARGE W.S.R TO ANTIMICROBIAL PROPERTIES

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    Vaginal Discharge is a common complaint of women coming for medical consultation, it is characterized by discharge per vagina, with itching. It is very common in developing countries like India where unhygienic condition are prevalent, Stressful Modern life styles, Food Habits, Social status. It is common problem which affect women during reproductive age. WHO has estimated that there are 333 million new cases of curable Vulvovaginal infections per year. Many formulations have been mentioned in Ayurvedic texts for treatment of Yonigatasrava. Panchvalkal has been explained in Bhavprakash. The main objective of this review article is to discuss the thereupatic uses of Panchvalkal in various diseases and to discuss the different pharmacological properties and thereupatic uses of Panchvalkal. The selected drug is found to be effective in vaginal discharge w.s.r. to its Antimicrobial properties. It helps in eliminating symptoms like Srava, Kandu, Dorgandhya, Vedana etc. it has Kashya and Katu Properties. These Gunas are effective on vitiated Kapha and normalize it. The present attempt to encompass the up to date comprehensive literature to Study the mode of action of Panchvalkal in vaginal discharge w.s.r. to Ayurvedic properties and Modern pharmacology

    Isolation of endophytic actinomycetes from Syzygium cumini and their antimicrobial activity against human pathogens

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    Isolation of endophytic actinomycetes is an important step to screen antimicrobial compounds to curb the threat of drug-resistant strains of human pathogens. Out of the 50 endophytic actinomycetes obtained from surface sterilized root, stem and leaf tissues of Syzygium cumini, 50 isolates (30%) exhibited antimicrobial activity. Antistaphylococcal activity was displayed by most of the isolates, with maximum percent inhibition by J-10 (Mean of Inhibition Factor=12.12 mm2). A total of 8 isolates (4 each) were able to hydrolyse protein (proteinase activity) and solubilize chitin (chitinase activity). Results of thin layer chromatography confirm the production of chloramphenicol family |antibiotic by the isolate J-5. This is the first report providing an insight into untapped endophytic actinomycete milieu of Syzygium cumini yet to be explored which might be a promising source for novel antimicrobial agents
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