Quaternionic approach to dual Magneto-hydrodynamics of dyonic cold plasma

The dual magneto-hydrodynamics of dyonic plasma describes the study of electrodynamics equations along with the transport equations in the presence of electrons and magnetic monopoles. In this paper, we formulate the quaternionic dual fields equations, namely, the hydro-electric and hydro-magnetic fields equations which are an analogous to the generalized Lamb vector field and vorticity field equations of dyonic cold plasma fluid. Further, we derive the quaternionic Dirac-Maxwell equations for dual magneto-hydrodynamics of dyonic cold plasma. We also obtain the quaternionic dual continuity equations that describe the transport of dyonic fluid. Finally, we establish an analogy of Alfven wave equation which may generate from the flow of magnetic monopoles in the dyonic field of cold plasma. The present quaternionic formulation for dyonic cold plasma is well invariant under the duality, Lorentz and CPT transformations.Comment: 20 pages, Revised versio

Accessing research literature: A mixed-method study of academics in Higher Education Institutions in Nepal

Background: Research in Higher Education (HE), particularly in health and medical sciences plays a crucial role, not only in enhancing knowledge and skills of students and academics, but also in helping to develop managers and policy makers who rely on evidence-based planning and programming. This paper reports university teacher’s knowledge and practices in accessing electronic research-based evidence in health and medical sciences in Nepal. Material and Methods: This was mixed-methods study comprising a self-administered questionnaire completed by HE teachers and informant key interviews with authorities of HE institutions. A total of 15 out of the total 40 institutions offering HE above Bachelors level on health-related subjects were included for the study. Results: The response rate was 68%; 244 out of 360 HE teachers completed self-administered questionnaire. The respondents comprised nurses (36%), followed by doctors (23%), public health practitioners (18%), dentists (17%) and pharmacists (12%). Most of the HE teachers reported that they have computer skills and possess their own computer. Two-thirds (66%) of the HE teachers had work email and almost all (93%) have a personal email ID. All institutions had a computer lab and/or library. Almost all teachers had internet access at work but the internet was reportedly slow. Each institution had a librarian to support to the students and staff but only a third of teachers sought their help. Many do not know what kind of support librarians can provide. Less than half of the staff had accessed electronic research materials. This proportion varied between HE institutions ranging from 13 to 83%. HINARI and PubMed were the mostly used research databases. Less than half of respondents (48%) had published research papers in peer-reviewed journals, and only 19% published a paper based on a systematic review. Female HE teachers were less likely to publish (32%) than males (68%). More readers and professors had published (75%) than instructors/assistant lecturers (30%) and lecturers (45%). Conclusions: Accessing electronic research literature provides an opportunity to gathering up-to-date research-based information that should be core to all health curricula. We call upon curriculum developers and university authorities in Nepal to revise health curricula and help build electronic searching skills among staff and students

Comparison of single versus double intra uterine insemination

Background: Intrauterine insemination (IUI) is the best studied and most widely practised artificial insemination technique. The aim and objective of this study was to compare the efficacy of single and double intrauterine insemination.Methods: This prospective randomized study was carried out in 197 infertile couples. Controlled ovarian hyperstimulation was carried out by standard ovulation induction protocols. Single intrauterine insemination was applied 36 hours after human chorionic gonadotropin (hCG) injection to 101 patients in the first group. Double intrauterine inseminations were carried out in 96 patients to whom the first insemination was done after 24 hours and the repeat insemination was done after 48 hours of hCG injection.Results: In the single IUI group 14 patients conceived with pregnancy rate of 13.86%. In the double IUI group 18 patients conceived with pregnancy rate of 18.75%. There was no statistically significant difference between the two groups as the p is more than 0.05.Conclusions: As double intrauterine insemination does not give better result and it involves more cost and stress to the couple, single intrauterine insemination should be preferable. However, further larger sample size studies are required for confirmation if any significant difference can be achieved between the two approaches

Nanoshearing - Collective carbon nanotube micromechanics

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Studies on Heterocyclic Entities of Medicinal Interest

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"વૈષ્ણવપુરાણોમાં પર્યાવરણ નિદર્શો "એક અધ્યયન, (વામન, વરાહ, વિષ્ણુ અને ભાગવતપુરાણના આલોકમાં")

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Competition between antiferromagnetism and superconductivity, electron-hole doping asymmetry and "Fermi Surface" topology in cuprates

We investigate the asymmetry between electron and hole doping in a 2D Mott insulator, and the resulting competition between antiferromagnetism (AF) and d-wave superconductivity (SC), using variational Monte Carlo for projected wave functions. We find that key features of the T = 0 phase diagram, such as critical doping for SC-AF coexistence and the maximum value of the SC order parameter, are determined by a single parameter which characterises the topology of the "Fermi surface" at half filling defined by the bare tight-binding parameters. Our results give insight into why AF wins for electron doping, while SC is dominant on the hole doped side. We also suggest using band structure engineering to control the parameter for enhancing SC.Comment: 4 pages, 4 figure