NURS 128: Evidence-based Nursing Practice Course Redesign

Poster summarizing course redesign activities for NURS 128: Evidence-based Nursing Practice.https://scholarworks.sjsu.edu/davinci_itcr2014/1004/thumbnail.jp

Role of colliding geometry on the balance energy of mass-asymmetric systems

We study the role of colliding geometry on the balance energy (Ebal) of mass-asymmetric systems by varying the mass asymmetry ({\eta} = AT - Ap/AT + AP, where AT and AP are the masses of the target and projectile, respectively) from 0.1 to 0.7, over the mass range 40-240 and on the mass dependence of the balance energy. Our findings reveal that colliding geometry has a significant effect on the Ebal of asymmetric systems. We find that, as we go from central collisions to peripheral ones, the effect of mass asymmetry on Ebal increases throughout the mass range. Interestingly, we find that for every fixed system mass (Atot) the effect of the impact parameter variation is almost uniform throughout the mass-asymmetry range. For each {\eta}, Ebal follows a power-law behavior (\propto A{\tau}) at all colliding geometriesComment: 5 pages, 5 figures, Accepted in PR

A comparative study of multiwavelength blazar variability on decades to minutes timescales

Multiwavelength blazar variability is produced by noise-like processes with the power-law form of power spectral density (PSD). We present the results of our detailed investigation of multiwavelength ( γ -ray and optical) light curves covering decades to minutes timescales, of two BL Lac objects namely, PKS 0735+178 and OJ 287. The PSDs are derived using discrete Fourier transform (DFT) method. Our systematic approach reveals that OJ 287 is, on average, more variable than PKS 0735+178 at both optical and γ -ray energies on the corresponding time scales. On timescales shorter than ∼10 days, due to continuous and dense monitoring by the Kepler satellite, a steepening of power spectrum is observed for OJ 287. This indicates the necessity of an intermittent process generating variability on intra-night timescales for OJ 287

Derivation of Quantum Theory from Feynman's Rules

Feynman's formulation of quantum theory is remarkable in its combination of formal simplicity and computational power. However, as a formulation of the abstract structure of quantum theory, it is incomplete as it does not account for most of the fundamental mathematical structure of the standard von Neumann-Dirac formalism such as the unitary evolution of quantum states. In this paper, we show how to reconstruct the entirety of the finite-dimensional quantum formalism starting from Feynman's rules with the aid of a single new physical postulate, the no-disturbance postulate. This postulate states that a particular class of measurements have no effect on the outcome probabilities of subsequent measurements performed. We also show how it is possible to derive both the amplitude rule for composite systems of distinguishable subsystems and Dirac's amplitude-action rule, each from a single elementary and natural assumption, by making use of the fact that these assumptions must be consistent with Feynman's rules.Comment: 14 pages, 9 figure