Non-destructive Orthonormal State Discrimination

We provide explicit quantum circuits for the non-destructive deterministic discrimination of Bell states in the Hilbert space $C^{d^{n}}$, where $d$ is qudit dimension. We discuss a method for generalizing this to non-destructive measurements on any set of orthogonal states distributed among $n$ parties. From the practical viewpoint, we show that such non-destructive measurements can help lower quantum communication complexity under certain conditions.Comment: 11 pages, 6 fugure

Cor triatriatum sinister with situs inversus totalis in an infant.

Cor triatriatum sinister is a rare congenital cardiac malformation characterized by a membrane in the left atrium which separates the left atrium into the proximal and distal chambers.Association of cor triatriatum is extremely rare with situs inversus totalis. This article reports a rare case of cor triatriatum sinister with situs inversus totalis in a 5 month old female infantpeer-reviewe

Resisting antimicrobial resistance: lessons from fungus farming ants

Attine ants use antimicrobials produced by commensal bacteria to inhibit parasites on their fungal gardens. However, in this agricultural system, antimicrobial use does not lead to overwhelming resistance, as is typical in clinical settings. Mixtures of continually evolving antimicrobial variants could support these dynamics. [Abstract copyright: Copyright © 2019 Elsevier Ltd. All rights reserved.

Comparative study between interlocking nail and V-nail in management of fracture shaft tibia

Background: Tibia is the most commonly fractured long bone in the body. Interlocked nails, either reamed or unreamed, has become the established method of treatment of closed and Grade I, II and III A open fractures of diaphysis of tibia. The cephalo-medullary nail like V-nail, has advantages of less surgical time and cost effectiveness while disadvantage of rotational instability. The present study was undertaken to compare the short-term as well as long-term results of treatment of diaphyseal fractures of tibia with interlocked nail and V-nail.Methods: Forty patients with fracture of shaft tibia were treated with either interlocked nail or V-nail. Twenty patients were treated with interlocked nail while remaining twenty were treated with V-nail. The follow-up period ranged from 14 weeks to 10 months. The results were assessed according to Ekland grading.Results: In interlocking series, 85% patients had excellent and good result while 15% patients had fair and poor results. In V-nail series, 30% patients had excellent result, 70% patients had good and fair results while no patient had poor result.Conclusions: From our study we conclude that closed interlocked nailing is the most ideal method of management of fracture shaft tibia of all types, allowing early mobilization. Closed V-nail is a simple and short procedure with satisfactory results, when used in simple and unifocal fracture types

Enhanced grain surface effect on magnetic properties of nanometric La0.7Ca0.3MnO3 manganite : Evidence of surface spin freezing of manganite nanoparticles

We have investigated the effect of nanometric grain size on magnetic properties of single phase, nanocrystalline, granular La0.7Ca0.3MnO3 (LCMO) sample. We have considered core-shell structure of our LCMO nanoparticles, which can explain its magnetic properties. From the temperature dependence of field cooled (FC) and zero-field cooled (ZFC) dc magnetization (DCM), the magnetic properties could be distinguished into two regimes: a relatively high temperature regime T > 40 K where the broad maximum of ZFC curve (at T = Tmax) is associated with the blocking of core particle moments, whereas the sharp maximum (at T = TS) is related to the freezing of surface (shell) spins. The unusual shape of M (H) loop at T = 1.5 K, temperature dependent feature of coercive field and remanent magnetization give a strong support of surface spin freezing that are occurring at lower temperature regime (T < 40 K) in this LCMO nanoparticles. Additionally, waiting time (tw) dependence of ZFC relaxation measurements at T = 50 K show weak dependence of relaxation rate [S(t)] on tw and dM/dln(t) following a logarithmic variation on time. Both of these features strongly support the high temperature regime to be associated with the blocking of core moments. At T = 20 K, ZFC relaxation measurements indicates the existence of two different types of relaxation processes in the sample with S(t) attaining a maximum at the elapsed time very close to the wait time tw = 1000 sec, which is an unequivocal sign of glassy behavior. This age-dependent effect convincingly establish the surface spin freezing of our LCMO nanoparticles associated with a background of superparamagnetic (SPM) phase of core moments.Comment: 41 pages, 10 figure

Charter Schools and the Road to College Readiness: The Effects on College Preparation, Attendance and Choice

The analysis here focuses on Boston's charter high schools. For the purpose of this report, an analysis of high schools is both a necessity and a virtue. It is necessary to study high schools because most students applying to charters in earlier grades are not yet old enough to generate data on postsecondary outcomes. Charter high schools are also of substantial policy interest: a growing body of research argues that high school may be too late for cost-effective human capital interventions. Indeed, impact analyses of interventions for urban youth have mostly generated disappointing results.This report is interested in ascertaining whether charter schools, which in Massachusetts are largely budget-neutral, can have a substantial impact on the life course of affected students. The set of schools studied here comes from an earlier investigation of the effects of charter attendance in Boston on test scores.The high schools from the earlier study, which enroll the bulk of charter high school students in Boston, generate statistically and socially significant gains on state assessments in the 10th grade. This report questions whether these gains are sustained

Higher order antibunching is not a rare phenomenon

Since the introduction of higher order nonclassical effects, higher order squeezing has been reported in a number of different physical systems but higher order antibunching is predicted only in three particular cases. In the present work, we have shown that the higher order antibunching is not a rare phenomenon rather it can be seen in many simple optical processes. To establish our claim, we have shown it in six wave mixing process, four wave mixing process and in second harmonic generation process.Comment: 6 pages, no figure, Latex 2

The in vivo Effect of Ultraviolet Irradiation (290-350 nm) on Epidermal Chromatin

In vivo ultraviolet radiation (290-350 nm, 800 J/m2 ) in the absence of any exogenously added sensitizer induced oross-ltnkirng of DNA to protein in chromatin isolated from guinea pig epidermis. The chemical properties and the biologic activity of epidermal chromatin isolated from both irradiated and non-irradiated specimens were examined. One hour post-irradiation the lesion was no more detectable, indicating that a repair process was effective 1n the viable mammalian epidermis