393 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
750 GeV diphoton excess from gauged B−L symmetry
No full textAbstractWe show that the recently observed 750 GeV diphoton excess at LHC can be due to the decay of a SU(2)L singlet scalar particle having 3 units of charge under gauged B−L symmetry. Such a particle arises as an essential ingredient of recently studied gauged B−L extension of the Standard Model with unconventional charge assignment for right handed neutrinos. Apart from being one of the simplest extensions of the Standard Model, the model also contains a dark matter candidate and Dirac neutrinos with naturally small masses
Isothermal unfolding studies on the apo and holo forms of Plasmodium falciparum acyl carrier protein
No full textThe unfolding pathways of the two forms of Plasmodium falciparum acyl carrier protein, the apo and holo forms, were determined by guanidine hydrochloride-induced denaturation. Both the apo form and the holo form displayed a reversible two-state unfolding mechanism. The analysis of isothermal denaturation data provides values for the conformational stability of the two proteins. Although both forms have the same amino acid sequence, and they have similar secondary structures, it was found that the – of unfolding of the holo form was lower than that of the apo form at all the temperatures at which the experiments were done. The higher stability of the holo form can be attributed to the number of favorable contacts that the 4'-phosphopantetheine group makes with the surface residues by virtue of a number of hydrogen bonds. Furthermore, there are several hydrophobic interactions with 4'-phosphopantetheine that firmly maintain the structure of the holo form. We show here for the first time that the interactions between 4'-phosphopantetheine and the polypeptide backbone of acyl carrier protein stabilize the protein. As Plasmodium acyl carrier protein has a similar secondary structure to the other acyl carrier proteins and acyl carrier protein-like domains, the detailed biophysical characterization of Plasmodium acyl carrier protein can serve as a prototype for the analysis of the conformational stability of other acyl carrier proteins
Isothermal unfolding studies on the apo and holo forms of Plasmodium falciparum acyl carrier protein role of the 4'-phosphopantetheine group in the stability of the holo form of Plasmodium falciparum acyl carrier protein
No full textThe unfolding pathways of the two forms of Plasmodium falciparum acyl carrier protein, the apo and holo forms, were determined by guanidine hydrochloride-induced denaturation. Both the apo form and the holo form displayed a reversible two-state unfolding mechanism. The analysis of isothermal denaturation data provides values for the conformational stability of the two proteins. Although both forms have the same amino acid sequence, and they have similar secondary structures, it was found that the -Δ G of unfolding of the holo form was lower than that of the apo form at all the temperatures at which the experiments were done. The higher stability of the holo form can be attributed to the number of favorable contacts that the 4'-phosphopantetheine group makes with the surface residues by virtue of a number of hydrogen bonds. Furthermore, there are several hydrophobic interactions with 4'-phosphopantetheine that firmly maintain the structure of the holo form. We show here for the first time that the interactions between 4'-phosphopantetheine and the polypeptide backbone of acyl carrier protein stabilize the protein. As Plasmodium acyl carrier protein has a similar secondary structure to the other acyl carrier proteins and acyl carrier protein-like domains, the detailed biophysical characterization of Plasmodium acyl carrier protein can serve as a prototype for the analysis of the conformational stability of other acyl carrier proteins
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%
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
- …
