51 research outputs found
Reply to "Comment on 'Inflation with a graceful exit and entrance driven by Hawking radiation' "
No full textThe Comment [J. T. Firouzjaee, preceding Comment, Phys. Rev. D 89, 068301 (2014)] raises two points in regard to our paper [S. K. Modak and D. Singleton, Phys. Rev. D 86, 123515 (2012)]. The first is that one cannot use the tunneling picture to obtain the temperature and particle production rate in the Friedman-Robertson-Walker space-time. The second comment raised by Firouzjaee is that the Hawking-like radiation model for inflation presented in [Modak and Singleton; S. K. Modak and D. Singleton, Int. J. Mod. Phys. D 21, 1242020 (2012)] is inconsistent with the observed scalar and tensor perturbation spectrum. We show that the first comment is beside the point-we do not use the tunneling method in our papers [Modak and Singleton; Modak and Singleton]. The second criticism by Firouzjaee comes from the author evaluating quantities at different times-he evaluates the parameters of our model at the beginning of inflation and then compares this with the scalar and tensor perturbations evaluated at the horizon exit point.From Physical Review D, Vol.89(6), 68302, available online: http://dx.doi.org/10.1103/PhysRevD.89.068302. Copyright ©2014 by American Physical Society.Publisher version: https://doi.org/10.1103/PhysRevD.89.06830
Originality for Copyright Protection in Literary Works: After EBC v DB Modak
No full text266-276Originality, can be termed as the grund norm (the basic norm) for copyrightability. However, no one-size-fits-all formula
is adopted by countries on this aspect, and this article first explores the position and benchmarks to determine original
literary work (because even for different ‘works’ the criteria differs). Pursuant to this inquiry of identifying the ambit of the
respective thresholds, the Indian perspective is analysed with special emphasis on the decision delivered by Indian Supreme
Court in DB Modak. The judgement is critiqued to identify lacunae and absurdity in determining the law laid down and its
application in the factual matrix. Finally, subsequent Indian decisions are looked upon by the author to find out the
underlying approach by the courts wrt interpretation of DB Modak and what common threads emerge from them
Indian Defence problem: Being a plea for saving Rs. 28 crores a year by immediate indianization etc. of British rank and file only a message of hope for the Indian tax-payer: A study for statesmen, publicists, politicians and military experts, both Indian
No full text
Representation and Bracketing in Repeated Games
No full textIn this experimental paper, the author investigates the framing effect of different representations of multiple strategic settings or games on a player’s strategic behavior. Two representations of the same environment are employed, wherein a player engages in two infinitely repeated prisoner’s dilemma games. In the first representation (termed Split), the stage games are shown separately. In contrast, the second representation (termed Linked) displays a combined stage game. The choice bracketing, distinguishing between Narrow and Broad bracketing, is considered a potential cause behind any disparity in behavior between the two representations. The Split representation does not necessitate broad bracketing, whereas the Linked representation compels it. Each type of bracketing has its own equilibrium implications. The author employs both a between-subject design (Study 1), where each subject observes only one representation, and a within-subject design (Study 2), where each subject is shown both the Linked and Split representations. In Study 1, significant differences in average behavior between the two representations are observed for both symmetric and asymmetric payoffs, albeit only after conditioning for session fixed effects. Study 2 reveals a more prominent effect of representation, and a sequence effect is observed, wherein the tendency to defect in both games is higher in the Linked representation if administered after the Split representation. In Study 2, for individuals who cannot be categorized as broad bracketers, the effect of seeing the Linked representation instead of the Split representation is economically significant. It increases the probability of choosing to cooperate in both games by more than 20% and decreases the probability to defect in both games by more than 25%
The J-helix ofEscherichia coliDNA Polymerase I (Klenow Fragment) Regulates Polymerase and 3′– 5′-Exonuclease Functions
No full textPhotoaffinity labeling of DNA template-primer binding site in Escherichia coli DNA polymerase I. Identification of involved amino acids.
No full textCharacterızatıon of catalytıc carboxylate trıad ın non-replıcatıve dna polymerase III (pol E) of Geobacillus kaustophilus HTA
No full textSANDALLI, Cemal/0000-0002-1298-3687Three aspartic acid residues D378, D380 and D531 form the catalytic carboxylate triad in Geobacillus kaustophilus (Gka) DNA polymerase III alpha-subunit homolog, pol E. We cloned, expressed and purified wild type (WT), alanine (D -> A) and glutamate (D -> E) mutant enzymes of D378, D380 and D531. the WT and mutant enzymes were biochemically characterized for DNA binding, dNTP binding and catalytic activity in the presence of two metal ions (Mg2+ and Mn2+). the polymerase activity of all mutant enzymes was lost in the presence Mg2+, whereas D378E and D531E mutant enzymes showed about 35 and 60 percent activity, with Mn2+. D380E mutant enzyme did not show noticeable activity with either metal ions suggesting its absolute requirement in polymerase reaction. Kinetic characterization of individual mutant proteins showed that the template-primer binding affinity (K-D.DNA) did not change due to both D -> A or D -> E mutation. the K-M.dNTP for D378E and D531E increased by about 10- and 100-fold, compared to WT enzyme implicating the function of these residues in dNTP binding. Based on these results and the analysis of the available crystal structures of the homologous enzyme species in their apo and E. DNA. dNTP ternary complex forms, we conclude that D378 and D531 are mainly responsible for the binding of metal chelated substrate dNTP, while D380 is solely responsible for the chemical step of phosphodiester bond formation.TUBITAKTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK)This study was supported by a scholarship to C. Sandalli from TUBITAK
Electroweak baryogenesis via bottom transport
No full text© 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the «https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.We consider a scenario in which an extra bottom Yukawa coupling can drive electroweak baryogenesis in the general two-Higgs doublet model. It is found that the new bottom Yukawa coupling with O(0.1) in magnitude can generate the sufficient baryon asymmetry without conflicting existing data. We point out that future measurements of the bottom Yukawa coupling at High-Luminosity Large Hadron Collider and International Linear Collider, together with the CP asymmetry of B→Xsγ at SuperKEKB provide exquisite probes for this scenario11Nsciescopu
Comparison of field swept ferromagnetic resonance methods – A case study using Ni-Mn-Sn films
No full text- …
