Line junction in a quantum Hall system with two filling fractions

We present a microscopic model for a line junction formed by counter or co-propagating single mode quantum Hall edges corresponding to different filling factors. The ends of the line junction can be described by two possible current splitting matrices which are dictated by the conditions of both lack of dissipation and the existence of a linear relation between the bosonic fields. Tunneling between the two edges of the line junction then leads to a microscopic understanding of a phenomenological description of line junctions introduced some time ago. The effect of density-density interactions between the two edges is considered, and renormalization group ideas are used to study how the tunneling parameter changes with the length scale. This leads to a power law variation of the conductance of the line junction with the temperature. Depending on the strength of the interactions the line junction can exhibit two quite different behaviors. Our results can be tested in bent quantum Hall systems fabricated recently.Comment: 9 pages including 4 figure

"Double-trace" Deformations, Boundary Conditions and Spacetime Singularities

Double-trace deformations of the AdS/CFT duality result in a new perturbation expansion for string theory, based on a non-local worldsheet. We discuss some aspects of the deformation in the low energy gravity approximation, where it appears as a change in the boundary condition of fields. We relate unique features of the boundary of AdS to the worldsheet becoming non-local, and conjecture that non-local worldsheet actions may be generic in other classes of backgrounds.Comment: 21 pages, 2 figures, harvmac. v2: minor changes, references added, version sent to JHEP. v3 minor correction

Contribution by the Indian and Pakistani Authors to Library Philosophy and Practice: A Bibliometric Analysis 2008-2017.

A bibliometric analysis of the research papers explores different aspects of the contribution from an individual author to the country as a whole. The growth of publications, authorship patterns, paper lengths, referencing trends, prolific contribution of authors, etc. about a particular journal are includes in bibliometric studies. Keeping in mind the Indian contribution to a peer review e-journal namely Library Philosophy and Practice (e-Journal) this study began. Meanwhile, it is observed that already work has done on several related aspect. Further, it is also found that the same study has already conducted by Anwar, (2018), exploring the Pakistani contribution to the same journals from 2008-2017. Finally, the present study has designed to explore and compare the contribution of Indian and Pakistani authors to Library Philosophy and Practice (LPP) for a period of ten years from 2008-17. The India and Pakistan are two significant countries in South-East Asia those shares historical, political, and economic background together. This study is based on the bibliometric analysis on LPP covered a period from 2008-2017 in which 432 articles (86 articles from Pakistani & 346 articles from Indian authors) were published during the marked period. Study examines the various bibliometric parameters such as authorship pattern, geographical distribution, major authors, and length of articles. Study finds that 41.8% (181) articles were contributed by two authors. Further, the study found that 11-15 pages of articles published in majority by the authors in both countries

Genetic variability, character association and path analysis in ashwagandha [Withania somnifera (L.) Dunal] under rainfed conditions

Twenty six diverse genotypes of ashwagandha [Withania somnifera (L.) Dunal]were evaluated for fourteen quantitative traits under rainfed conditions. Both phenotypicand genotypic coefficients of variation were higher for important traits like number ofberries/plant, fresh weight of berries/plant, biomass yield at maturity and ratio of freshabove ground biomass: fresh root biomass. High heritability in conjunction with highgenetic advance were observed for number of berries/plant, fresh weight of berries/plant,seed yield/plant, fresh root yield/plant, biomass yield at maturity and ratio of fresh aboveground biomass : fresh root biomass which indicated predominant role of additive geneaction for the expression of these characters. Fresh root yield/ plant was found to bepositively and significantly correlated with number of berries/plant, fresh weight ofberries/plant, seed yield/plant and root diameter. Path analysis revealed that totalalkaloid content showed the highest positive direct effect on fresh root yield/plantfollowed by biomass yield at maturity, seed yield/plant, root diameter and number ofberries/plant which suggested that selection for these traits would be quite effective toimprove fresh root yield in ashwagandha

Greenbook: A Guide to Intelligent Giving Volume 3: Funding Environmental Stewardship in Israel

Greenbooks are research reports written specifically for the funding community. Each unbiased, comprehensive guide focuses on a problem currently facing the Jewish community, maps out the relevant history, and details a wide range of approaches being taken to address the problem. Greenbooks are produced by the Jewish Funders Network, with a target publication of two guides annually. Over the past two decades, philanthropic foundations -- in partnership with civil society -- have been instrumental in forging a vision of social environmental change in Israel, and in dramatically raising public awareness of environmental concerns

Sonographically Identified Echogenic Renal Masses Up to 1 cm in Size Are So Rarely Malignant They Can Be Safely Ignored

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/135692/1/jum2016352323.pd

Food Safety Knowledge and Practices among Saudi Mothers

This study examines food safety knowledge and practices of mothers in Saudi Arabia. A total of 979 respondents participated in the study and completed a questionnaire that accessed their knowledge of food storage, food handling, usage and maintenance of kitchen facilities, personal hygiene and food poisoning. Results showed that mothers in Saudi Arabia had moderate knowledge of food storage (passing rate 64.9%) and usage and maintenance of kitchen facilities (passing rate 66.5%). While they had good knowledge of personal hygiene (passing rate 83.8%) and food poisoning (passing rate 78.5%), their knowledge with regard to food handling was poor (passing rate 30.4%). Results also highlighted that food safety knowledge and practices amongst mothers in Saudi Arabia improved with the level of education, while their age, employment status, monthly income and number of children had no significant association with their food safety knowledge and practices. This research revealed the importance of education and that advance education and training program can further improve mothers’ food safety knowledge and practices and thereby result in reducing the risks of foodborne illnesses at homes