Disorder-induced critical exponents near a ferromagnetic quantum critical point in Mn1−xCrxSi

We report the observation of critical behavior in Mn1−xCrxSi (0≤x≤1) close to a T = 0 K quantum critical point, consistent with the Belitz-Kirkpatrick-Vojta (BKV) theory of disordered metallic ferromagnets. The critical exponents are in good agreement with the theoretical predictions of the BKV theory in the preasymptotic limit. A non-Fermi liquid-like behavior is seen down to 200 mK in the transport and thermodynamic properties around the critical concentration xC = 0.2. Quantum criticality and self-consistency of the exponents is further confirmed using a scaling analysis of the magnetization and heat capacity data. A recovery to Fermi liquid-like behavior is displayed on moving away from the critical composition, as well as with the application of a magnetic field

A new report of Trichogloea requienii (Montagne) Kutzing from the South Andaman Sea and study of antibacterial activity of extracted compounds from the species

518-521The red seaweed Trichogloea requienii, Rhodophyta: Liagoraceae is being reported from the coast of South Andaman for the first time. The species was collected from the coast of Brookshabad, South Andaman, Andaman and Nicobar Islands, India. The crude ethanolic extract of the species was screened for antibacterial activity against six selected human pathogens such as Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Proteus mirabilis, Enterococcus faecalis and Micrococcus luteus by in-vitro assay. The results suggested that the algal extract gives promising effect with a maximum zone of inhibition on S. aureus (42 mm) followed by P. aeruginosa (30 mm) and P. mirabilis (25 mm). No zone of inhibition was observed with E.coli, E. faecalis and M. luteus. The seaweed species T. requienii can be a potential source of bioactive compounds for pharmaceutical application

Impact of air–sea coupling on the simulation of Indian summer monsoon using a high-resolution Regional Earth System Model over CORDEX-SA

A new high-resolution Regional Earth System Model, namely ROM, has been implemented over CORDEX-SA towards examining the impact of air–sea coupling on the Indian summer monsoon characteristics. ROM's simulated mean ISM rainfall and associated dynamical and thermodynamical processes, including the representation of northward and eastward propagating convention bands, are closer to observation than its standalone atmospheric model component (REMO), highlighting the advantage of air–sea coupling. However, the value addition of air–sea coupling varies spatially with more significant improvements over regions with large biases. Bay of Bengal and the eastern equatorial Indian Ocean are the most prominent region where the highest added value is observed with a significant reduction up to 50–500% precipitation bias. Most of the changes in precipitation over the ocean are associated with convective precipitation (CP) due to the suppression of convective activity caused by the negative feedback due to the inclusion of air–sea coupling. However, CP and large-scale precipitation (LP) improvements show east–west asymmetry over the Indian land region. The substantial LP bias reduction is noticed over the wet bias region of western central India due to its suppression, while enhanced CP over eastern central India contributed to the reduction of dry bias. An insignificant change is noticed over Tibetan Plateau, northern India, and Indo Gangetic plains. The weakening of moisture-laden low-level Somalia Jets causes the diminishing of moisture supply from the Arabian Sea (AS) towards Indian land regions resulting in suppressed precipitation, reducing wet bias, especially over western central India. The anomalous high kinetic energy over AS, wind shear, and tropospheric temperature gradient in REMO compared to observation is substantially reduced in the ROM, facilitating the favourable condition for suppressing moisture feeding and hence the wet bias over west-central India in ROM. The warmer midlatitude in ROM than REMO over eastern central India strengthens the convection, enhancing precipitation results in reducing the dry bias. Despite substantially improved ROM’performance, it still exhibits some systematic biases (wet/dry) partially associated with the persistent warm/cold SST bias and land–atmosphere interaction

Pattern of antidepressant prescription at tertiary (mental hospital vs medical college) care centre of central India

Background: Western literature full of extensively study the antidepressant prescription pattern at different settings. Recently in Indian context multicentre study and individual centers reported pattern of antidepressant uses for management of depression. With the time newer antidepressant approved, with better understanding of evidence based pathogenesis of illness influence the treatment patterns. Mental hospital setting is different that medical college setting at least for stigma related issue. The aim of the research work was to study the pattern of antidepressant prescription at mental hospital and medical college settings.Methods: Cross-sectional assessments were done at mental hospital and medical college centers. Subjects diagnosed as depressive episode as per ICD 10, age >18 year included in study. Total 105 treatment seeking subject included in study from both centers Data was collected on socio-demographic characteristics, Clinical profile and prescribed medication.Results: 49 subjects from mental hospital, 56 subjects from medical college included in study. Mean age of study sample 39.27±12.96 vs 37.49±14.90 years respectively at mental hospital and medical college centers. Escitalopram prescribed 83.7% subjects, 53.3 % subjects receive monotherapy. L methyl folate and atypical antipsychotics was most commonly adjunctive medication with antidepressants.Conclusions: In sociodemographic differences subjects attending mental hospital belong to lower socioeconomic status compare to subject attending mental hospitals. There were no significant differences in prescription pattern of antidepressant medication for treatment of depressive episode. Escitalopram most commonly prescribed antidepressant and L methyl folate and atypical antipsychotics was most commonly used adjuvant with antidepressant medications.

Can re-entrance be observed in force induced transitions?

A large conformational change in the reaction co-ordinate and the role of the solvent in the formation of base-pairing are combined to settle a long standing issue {\it i.e.} prediction of re-entrance in the force induced transition of DNA. A direct way to observe the re-entrance, i.e a strand goes to the closed state from the open state and again to the open state with temperature, appears difficult to be achieved in the laboratory. An experimental protocol (in direct way) in the constant force ensemble is being proposed for the first time that will enable the observation of the re-entrance behavior in the force-temperature plane. Our exact results for small oligonucleotide that forms a hairpin structure provide the evidence that re-entrance can be observed.Comment: 12 pages and 5 figures (RevTex4). Accepted in Europhys Lett. (2009