Comparative functional genomics approach for the annotation of proteins in Unclassified Halophilic archaeon DL31

The structure, function and sub-cellular location prediction for the unknown proteins from Unclassified Halophilic archaeon DL31 were carried out for characterization of the proteins in their respective families. The 991 genes for hypothetical proteins in Halophilic archaeon DL31 chromosome were predicted by the application of computational methods and Bioinformatics web tools. The structure predictions for 206 unknown proteins were possible whereas functions were predicted in 825 protein sequences. The function prediction for the proteins were done by using Bioinformatics web tools like CDD-BLAST, INTERPROSCAN and PFAM by searching protein databases for the presence of conserved domains. The Sub-cellular location predictions were done for all the unknown proteins by using CELLO v 2.5 server. While tertiary structures were constructed using PS2 Server- Protein Structure Prediction server. This study revealed structural, functional and Sub-cellular localization of unknown proteins in Unclassified Halophilic archaeon DL31chromosome

Exact States in Waveguides With Periodically Modulated Nonlinearity

We introduce a one-dimensional model based on the nonlinear Schrodinger/Gross-Pitaevskii equation where the local nonlinearity is subject to spatially periodic modulation in terms of the Jacobi dn function, with three free parameters including the period, amplitude, and internal form-factor. An exact periodic solution is found for each set of parameters and, which is more important for physical realizations, we solve the inverse problem and predict the period and amplitude of the modulation that yields a particular exact spatially periodic state. Numerical stability analysis demonstrates that the periodic states become modulationally unstable for large periods, and regain stability in the limit of an infinite period, which corresponds to a bright soliton pinned to a localized nonlinearity-modulation pattern. Exact dark-bright soliton complex in a coupled system with a localized modulation structure is also briefly considered . The system can be realized in planar optical waveguides and cigar-shaped atomic Bose-Einstein condensates.Comment: EPL, in pres

Barriers to higher education:Commonalities and contrasts in the experiences of Hindu and Muslim young women in urban Bengaluru

Gender inequalities in educational attainment have attracted considerable attention and this article aims to contribute to our understanding of young women’s access to higher education. The article is based on our in-depth interviews with 26 Hindu and Muslim young women attending colleges in urban Bengaluru (formerly Bangalore), south India, and explores the barriers they confronted in fulfilling their aspirations. We highlight the similarities amongst the young women, as well as the distinctive experiences of the Hindu and Muslim interviewees. Financial constraints, lack of safety for women in public space, and gender bias, gossip and social control within the family and the local community affected Hindu and Muslim interviewees in substantially similar ways. For the Muslim interviewees, however, gender disadvantage was compounded by their minority status. This both underlines the importance of incorporating communal politics into our analysis and undermines popular discourses that stereotype Muslims in India as averse to girls’ and young women’s education

Beyond behaviour as individual choice: a call to expand understandings around social science in health research

The focus of behavioural sciences in shaping behaviour of individuals and populations is well documented. Research and practice insights from behavioural sciences improve our understanding of how people make choices that in turn determine their health, and in turn the health of the population. However, we argue that an isolated focus on behaviour - which is one link in a chain from macro to the micro interventions - is not in sync with the public health approach which per force includes a multi-level interest. The exclusive focus on behaviour manipulation then becomes a temporary solution at best and facilitator of reproduction of harmful structures at worst. Several researchers and policymakers have begun integrating insights from behavioural economics and related disciplines that explain individual choice, for example, by the establishment of Behavioural Insight Teams, or nudge units to inform the design and implementation of public health programs. In order to comprehensively improve public health, we discuss the limitations of an exclusive focus on behaviour change for public health advancement and call for an explicit integration of broader structural and population-level contexts, processes and factors that shape the lives of individuals and groups, health systems and differential health outcomes

Exact states in waveguides with periodically modulated nonlinearity

Partial financial support has been provided by the Research Grants Council (Hong Kong) contract HKU 17200815.Peer reviewedPostprin

The Sasa-Satsuma higher order nonlinear Schrodinger equation and its bilinearization and multi-soliton solutions

Higher order and multicomponent generalizations of the nonlinear Schrodinger equation are important in various applications, e.g., in optics. One of these equations, the integrable Sasa-Satsuma equation, has particularly interesting soliton solutions. Unfortunately the construction of multi-soliton solutions to this equation presents difficulties due to its complicated bilinearization. We discuss briefly some previous attempts and then give the correct bilinearization based on the interpretation of the Sasa-Satsuma equation as a reduction of the three-component Kadomtsev-Petvishvili hierarchy. In the process we also get bilinearizations and multi-soliton formulae for a two component generalization of the Sasa-Satsuma equation (the Yajima-Oikawa-Tasgal-Potasek model), and for a (2+1)-dimensional generalization.Comment: 13 pages in RevTex, added reference

Recasting Food: An Ethnographic Study on How Caste and Resource Inequality Perpetuate Social Disadvantage in India

Integrated Child Development Services (ICDS) is the principal programme operating in India to address issues around child development, malnutrition and pre-school education. A package of services – including the Supplementary Nutrition Programme (SNP), pre-school education, immunization, health check-ups, referral services, and nutrition and health education – are provided through an Anganwadi Centre (AWC) with an Anganwadi Worker (AWW) and an Anganwadi Helper (AWH) for roughly every one thousand people. From the mid-1990s, there have been successive efforts on the part of the Government of India to universalize ICDS, and there has been a multi-fold increase in funds allocated to this programme between the 8th Five-Year Plan (1992–93 to 1996–97) and the 12th Five-Year Plan (2012–17) (1-2). However, the utilization of all services under ICDS continues to be grossly low. Close to 75 percent of children aged 0–71 months in the areas covered by AWCs did not receive any supplementary food from the centres, and less than 12 percent of children received supplementary food ‘almost daily’. For children aged 36–71 months this figure is 15.5 percent. More than 80 percent of children were not weighed at all. It has been reported that children belonging to economically backward and socially marginalised families, including Dalit, tribal, and religious minorities, are excluded from utilising these services through unfavourable institutional rules and structural factors. Equally, members of well-off families do not use services provided by AWCs – especially the SNP – for under-6 children. A multi-sited ethnographic study was conducted in four villages in Gujarat in order to identify the reasons behind poor utilisation of AWCs, especially the SNP services. The study aimed to understand everyday experience of households around the SNP in rural settings and an opportunity to study AWCs as institutions embedded in the context of village cultural life. The authors hypothesise that a study focusing on AWCs could serve as an illustrative case to highlight challenges in implementing other entitlement-based programmes

Exact soliton solutions, shape changing collisions and partially coherent solitons in coupled nonlinear Schroedinger equations

We present the exact bright one-soliton and two-soliton solutions of the integrable three coupled nonlinear Schroedinger equations (3-CNLS) by using the Hirota method, and then obtain them for the general $N$-coupled nonlinear Schroedinger equations (N-CNLS). It is pointed out that the underlying solitons undergo inelastic (shape changing) collisions due to intensity redistribution among the modes. We also analyse the various possibilities and conditions for such collisions to occur. Further, we report the significant fact that the various partial coherent solitons (PCS) discussed in the literature are special cases of the higher order bright soliton solutions of the N-CNLS equations.Comment: 4 pages, RevTex, 1 EPS figure To appear in Physical Review Letter

Conservation Laws in Higher-Order Nonlinear Optical Effects

Conservation laws of the nonlinear Schr\"{o}dinger equation are studied in the presence of higher-order nonlinear optical effects including the third-order dispersion and the self-steepening. In a context of group theory, we derive a general expression for infinitely many conserved currents and charges of the coupled higher-order nonlinear Schr\"{o}dinger equation. The first few currents and charges are also presented explicitly. Due to the higher-order effects, conservation laws of the nonlinear Schr\"{o}dinger equation are violated in general. The differences between the types of the conserved currents for the Hirota and the Sasa-Satsuma equations imply that the higher-order terms determine the inherent types of conserved quantities for each integrable cases of the higher-order nonlinear Schr\"{o}dinger equation

Completely integrable models of non-linear optics

The models of the non-linear optics in which solitons were appeared are considered. These models are of paramount importance in studies of non-linear wave phenomena. The classical examples of phenomena of this kind are the self-focusing, self-induced transparency, and parametric interaction of three waves. At the present time there are a number of the theories based on completely integrable systems of equations, which are both generations of the original known models and new ones. The modified Korteweg-de Vries equation, the non- linear Schrodinger equation, the derivative non-linear Schrodinger equation, Sine-Gordon equation, the reduced Maxwell-Bloch equation, Hirota equation, the principal chiral field equations, and the equations of massive Thirring model are gradually putting together a list of soliton equations, which are usually to be found in non-linear optics theory.Comment: Latex, 17 pages, no figures, submitted to Pramana