Implications of the dark LMA solution and fourth Sterile neutrino for neutrino less double beta decay

We analyze the effect of the Dark-large mixing angle (DLMA) solution on the effective Majorana mass (m??) governing neutrino-less double beta decay (0???) in the presence of a sterile neutrino. We consider the 3+1 picture, comprising of one additional sterile neutrino. We have checked that the MSW resonance in the sun can take place in the DLMA parameter space in this scenario. Next we investigate how the values of the solar mixing angle ?12 corresponding to the DLMA region alter the predictions of m?? including a sterile neutrino in the analysis. We also compare our results with three generation cases for both standard large mixing angle (LMA) and DLMA. Additionally, we evaluate the discovery sensitivity of the future 136Xe experiments in this context.by K. N. Deepthi, Srubabati Goswami, Vishnudath K. N. and Tanmay Kumar Podda

Design of water retaining embankment using geosynthetics for hydraulic conditions

by Shubham Soni and Amit Prashan

Narrow-band search for gravitational waves from known pulsars using the second LIGO observing run

Isolated spinning neutron stars, asymmetric with respect to their rotation axis, are expected to be sources of continuous gravitational waves. The most sensitive searches for these sources are based on accurate matched filtering techniques, that assume the continuous wave to be phase-locked with the pulsar beamed emission. While matched filtering maximizes the search sensitivity, a significant signal-to-noise ratio loss will happen in case of a mismatch between the assumed and the true signal phase evolution. Narrow-band algorithms allow for a small mismatch in the frequency and spin-down values of the pulsar while integrating coherently the entire data set. In this paper we describe a narrow-band search using LIGO O2 data for the continuous wave emission of 33 pulsars. No evidence for a continuous wave signal has been found and upper-limits on the gravitational wave amplitude, over the analyzed frequency and spin-down volume, have been computed for each of the targets. In this search we have surpassed the spin-down limit for some of the pulsars already present in the O1 LIGO narrow-band search, such as J1400\textminus6325 J1813\textminus1246, J1833\textminus1034, J1952+3252, and for new targets such as J0940\textminus5428 and J1747\textminus2809. For J1400\textminus6325, J1833\textminus1034 and J1747\textminus2809 this is the first time the spin-down limit is surpassed.by Anand Sengupta et .al

Crime, criminal justice and the politics of the subalterns: understanding subaltern subjectivity in colonial Assam

by Jahnu Bharadwa

Novel pyrazolo [4, 3-c] quinolin-3-one derivatives as PDE5A inhibitors

Background: PDE5A is a phosphodiesterase which specifically hydrolyzes the cGMP to GMP. It takes part in several physiological and pathological pathways and is considered an important drug target. Currently, PDE5 inhibitors (ex; Sildenafil, Tadalafil) available in the market are not only being used for the treatment of erectile dysfunction but at the same time, they are also in clinical trials being investigated as anticancer agents. Materials & Methods: In this work, we have examined pyrazolo [4,3-c]quinolin-3-ones as PDE5A inhibitors. Pyrazolo [4,3-c]quinolin-3-ones are the class of tricyclic heterocyclic derivatives having a variety of therapeutically interesting drug candidates known for their anti-inflammatory, anti-viral, anti-anxiety and anti-cancer activity. Therefore, synthetic methods providing access to pyrazolo [4, 3-c] quinolin-3-ones are immensely valuable. Here, we are reporting a simple but efficient route for the synthesis of novel 8–morpholino-2-aryl – 2, 5-dihydro-3H-pyrazolo [4, 3-c] quinolin-3-one derivatives. Results: Further, molecular docking studies of synthesized compounds with human PDE5A protein showed that all the compounds exhibited good docking score in comparison with known inhibitors. In addition, all the synthesized molecules were evaluated against HCT116 cell lines for their antitumor activity. Conclusion: Among all the synthesized compounds, compound 5a, 5d, and 6e showed better cytotoxicity. Thus, these derivatives can be studied as potential inhibitors of PDE5A.by Althaf Shaik,Harshit Kumar Agarwal,Rashmi Bhakuni and Sivapriya Kirubakara

Calculations of shear, bulk viscosities and electrical conductivity in the Polyakov-quark–meson model

We have calculated different transport coefficients such as shear, bulk viscosities and electrical conductivity of quark and hadronic matter within the framework of a 2 flavor Polyakov-quark–meson model. For constant thermal widths of quarks and mesons, the temperature dependence of different transport coefficients reveals the thermodynamical phase space structure and their qualitative behavior are quite well in agreement with earlier works, based on other dynamical models. Besides the phase-space structure of quarks and mesons, their thermal width also have explicit temperature dependence. This dependence has been obtained here from the imaginary part of their respective self-energies at finite temperature. Due to the threshold conditions of their self energies, only some limited temperature regions of quark and hadronic phase are relevant for our numerical estimation of transport coefficients, which are grossly in agreement with some of the earlier results. An interesting outcome of the present analysis is that the quark relaxation time due to quark–meson loops can develop perfect fluid nature within a specific temperature range.by Pracheta Singha, Aman Abhishek, Guruprasad Kadam, Sabyasachi Ghosh and Hiranmaya Mishr

Search for intermediate mass black hole binaries in the first and second observing runs of the advanced LIGO and virgo network

Gravitational wave astronomy has been firmly established with the detection of gravitational waves from the merger of ten stellar mass binary black holes and a neutron star binary. This paper reports on the all-sky search for gravitational waves from intermediate mass black hole binaries in the first and second observing runs of the Advanced LIGO and Virgo network. The search uses three independent algorithms: two based on matched filtering of the data with waveform templates of gravitational wave signals from compact binaries, and a third, model-independent algorithm that employs no signal model for the incoming signal. No intermediate mass black hole binary event was detected in this search. Consequently, we place upper limits on the merger rate density for a family of intermediate mass black hole binaries. In particular, we choose sources with total masses M=m1+m2?[120,800]M? and mass ratios q=m2/m1?[0.1,1.0]. For the first time, this calculation is done using numerical relativity waveforms (which include higher modes) as models of the real emitted signal. We place a most stringent upper limit of 0.20~Gpc?3yr?1 (in co-moving units at the 90% confidence level) for equal-mass binaries with individual masses m1,2=100M? and dimensionless spins ?1,2=0.8 aligned with the orbital angular momentum of the binary. This improves by a factor of ?5 that reported after Advanced LIGO's first observing run.by Anand S. Sengupta et al

One and two?component organogels with cyanostilbene without any auxiliary substituents

The cover feature shows organogel formation from ??cyanostilbene derivatives without auxiliary functional groups. The key component of the organogel system is pyridine acrylonitrile that forms gels either by itself (single component) or with its structural siblings (two?componentss). The organogel also acts as a sensing system for trifluoroacetic acid with distinct color changes and gelation loss.. Details are given in the Full Paper by S. Kanvah and co?workersby Jagadish Katla, Althaf Shaik, Rahul Dahiwadkar, Vijay Thiruvenkatam and Sriram Kanva

Parameterized dichotomy of choosing committees based on approval votes in the presence of outliers

Approval voting provides an opportunity for the agents to make a comment about every candidate, without incurring the overhead of determining a full ranking on the entire set of candidates. This makes approval voting a natural choice for many practical applications. In this work, we focus on the use of approval voting for selecting a committee in scenarios where we can have few outrageous voters whom we call outliers. More specifically, we study the computational complexity of the committee selection problem for commonly used approval-based voting rules in the presence of outliers. Our first result shows that outliers render the committee selection problem intractable for approval, net approval, and minisum approval voting rules. We next study the parameterized complexity of this problem with five natural parameters, namely the target score, the size of the committee (and its dual parameter namely the number of candidates outside the committee); and the number of outliers (and its dual parameter namely the number of non-outliers). Our main contribution in this paper is dichotomous results, which establish the parameterized complexity of the problem of selecting a committee under approval, net approval, and minisum approval voting rules for all subsets of the above five parameters considered here (by showing either FPT or W[1] -hardness for all subsets of parameters).by Palash Dey, Neeldhara Misra and Y Narahar

Geomorphic changes and sediment dynamics in rivers: causes and consequences

by Rajiv Sinha, Vikrant Jain and Gaurav Kuma