Measurement of the Higgs boson production rate in association with top quarks in final states with electrons, muons, and hadronically decaying tau leptons at s√=13TeV

The rate for Higgs (H) bosons production in association with either one (tH) or two (tt¯H) top quarks is measured in final states containing multiple electrons, muons, or tau leptons decaying to hadrons and a neutrino, using proton–proton collisions recorded at a center-of-mass energy of 13TeV by the CMS experiment. The analyzed data correspond to an integrated luminosity of 137fb−1. The analysis is aimed at events that contain H→WW, H→ττ, or H→ZZ decays and each of the top quark(s) decays either to lepton+jets or all-jet channels. Sensitivity to signal is maximized by including ten signatures in the analysis, depending on the lepton multiplicity. The separation among tH, tt¯H, and the backgrounds is enhanced through machine-learning techniques and matrix-element methods. The measured production rates for the tt¯H and tH signals correspond to 0.92±0.19(stat)+0.17−0.13(syst) and 5.7±2.7(stat)±3.0(syst) of their respective standard model (SM) expectations. The corresponding observed (expected) significance amounts to 4.7 (5.2) standard deviations for tt¯H, and to 1.4 (0.3) for tH production. Assuming that the Higgs boson coupling to the tau lepton is equal in strength to its expectation in the SM, the coupling yt of the Higgs boson to the top quark divided by its SM expectation, κt=yt/ySMt, is constrained to be within −0.9<κt<−0.7 or 0.7<κt<1.1, at 95% confidence level. This result is the most sensitive measurement of the tt¯H production rate to date.SCOAP

Local structure and piezoelectric instability in lead-free (1-x)BaTiO3-xA(Cu1/3Nb2/3)O-3 (A = Sr, Ca, Ba) solid solutions

This study provides a fundamental understanding of the enhanced piezoelectric instability in ABO(3) perovskite based lead-free piezoelectric materials. For this we synthesized (1 - x)BaTiO3-xA(Cu1/3Nb2/3)O-3 (A: Sr, Ba and Ca and x = 0.0-0.03) solid solutions exhibiting high piezoelectric response. The piezoelectric instability in these compositions was found to increase with x despite monotonous decrease in the long range polar ordering. High energy X-ray diffraction coupled with atomic pair distribution functions (PDF)s indicated an increase in local polarization. Raman scattering and EPR analysis revealed that substitutions on A and B sites both substantially perturbed the local octahedral dynamics and resulted in localized nano polar regions which imparted the high piezoelectric response

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Not AvailableForty diverse genotypes of vegetable type cowpea [Vigna unguiculata (L.) Walp] were evaluated during 2003 at ICAR-IIVR, Varansi (U.P.) where phenotypic coefficient of variation was greater than genotypic coefficient of variation for most of the traits under study. Relatively high genotypic and phenotypic coefficient of variation were recorded for plant height, number of primary branches per plant, number of peduncles per plant, number of pods per plant and green pod yield per plant. High heritability accompanied by moderate to high genotypic coefficient of variation and genetic advance were observed for plant height, peduncle length, number of primary branches per plant, number of peduncles per plant and green pod yield per plant, which could be improved by simple selection in early generation. Days to 50% flowering, 1st green pod picking, pod diameter, number of seeds per plant and 100 seed weight manifested high heritability coupled with low genotypic coefficient of variation and genetic advance indicated that simultaneous improvement in vegetable type cowpea can be made accordingly.Not Availabl

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Not AvailableCow dung is a rich source of microbial diversity and being used since long time in India for seed treatment, plastering cut ends of vegetative propagated plant parts and sprinkling of diluted solution on crops. In pres- ent study, microbial isolation from fresh cow (indigenous) dung observed in different generalized and selective medium. Cow dung enriched with diversity of microorganisms as it contained various microbial population as observed in different mediumi.e38 x 106cfu g-1 (in nutrient agar), 26.0 x 106 cfu g-1 (actinomycetes isolation agar), 36 x 106 cfu g-1 (Kings B agar), 16 x 106 cfu g-1 (CV agar),13 x 106 cfu g-1 (Methyl red), 15 x 106 cfu g-1 (Pikovskyas agar), 30 x 106 cfu g-1 (CRYEMA), Azospirillum 70 x 106 cfu g-1 (N-free maleate) and 30 x 106 cfu g-1 (Jenson agar medium). Based on microbial enumeration, total 18 bacterial isolates were selected for biochemical, PGPR characterization and biocontrol activity. All isolates were tested positive for phosphate and Zn solubilisation. Isolate CD2, CD5, CD13, CD14 and CD19 were tested highly positive for zinc, phosphate, K-solubilisation, IAA and amylase pro-duction. Test isolates CD2, CD5, CD6, CD7, CD10 and CD13 were tested highly positive for β-galactosidase activ-ity, ornithine utilization, nitrate reduction, citrate utilization, malonate utilization, esculin hydrolysis, trehalose, glucose and lactose utilization. All isolated microbes tested for biocontrol activity (antifungal property) against standard pathogen procured from microbial type culture collection (MTCC), i.e. C. gloeosporioides (MTCC 2190), F. oxysporum (MTCC 10247), C. fimbriota (MTCC 2281) and P. aphanidermatum (MTCC 284). CD2, CD34 and CD20 isolates significantly inhibited the growth of C. gloeosporioides and P. aphanidermatum.Not Availabl

Breast tuberculosis in immunocompetent patients at tertiary care center: A case series

The breast tuberculosis (TB) is an extremely rare manifestation for the reason that mammary cells offer great resistance to the survival and multiplication of Mycobacterium infection. The diagnosis is difficult because of nonspecific clinical and radiological findings. It is usually suspected in a multiparous, reproductive woman. We report three cases of tubercular infection of breast confirmed by either mycobacteriology, pathology or both. We described their diagnostic confirmation and six month follow-up after antitubercular treatment (ATT)

Sequential Pd(0)/Fe(III) Catalyzed Azide–Isocyanide Coupling/Cyclization Reaction: One-Pot Synthesis of Aminotetrazoles

A rapid and efficient synthesis of aminotetrazole from aryl azides, isocyanides, and TMSN₃ is developed. The reaction is promoted by sequential Pd(0)/Fe­(III) catalysis. The reaction sequence utilizes the Pd-catalyzed azide–isocyanide denitrogenative coupling reaction to generate unsymmetric carbodiimide <i>in situ</i>, which reacts with TMSN₃ in the presence of FeCl₃ in a single pot. The methodology has distinct advantages over traditional synthetic approaches where toxic Hg and Pb salts are employed at stoichiometric scale

Sequential Pd(0)/Fe(III) Catalyzed Azide–Isocyanide Coupling/Cyclization Reaction: One-Pot Synthesis of Aminotetrazoles

A rapid and efficient synthesis of aminotetrazole from aryl azides, isocyanides, and TMSN₃ is developed. The reaction is promoted by sequential Pd(0)/Fe­(III) catalysis. The reaction sequence utilizes the Pd-catalyzed azide–isocyanide denitrogenative coupling reaction to generate unsymmetric carbodiimide <i>in situ</i>, which reacts with TMSN₃ in the presence of FeCl₃ in a single pot. The methodology has distinct advantages over traditional synthetic approaches where toxic Hg and Pb salts are employed at stoichiometric scale