On the Required Secure Key Rate for Quantum-Secured Optical Channels

The current maturity of the quantum-secured optical data channels based on the Quantum Key Distribution (QKD) technology is at the deployment level in metro environments, while R&D efforts are also being conducted towards long-distance deployments. A great deal of research has been conducted on the achievable Secure Key Rate (SKR) for quantum channels. However, one of the major questions for network operators is the required SKR for the deployment of quantum-secured channels. This article addresses this question by defining the required SKR for quantum-secured optical channels and provides guidelines towards optimizing this parameter. \copyright 2023 The Author(s)Comment: 6 pages, 2 figure

Psychological contracts in the workplace: A mixed methods design project

Employee perceptions of psychological contracts were explored in a mixed methods design project. Although psychological contract research has been popular since its inception over 50 years ago, the field makes a number of assumptions about how employees truly experience psychological contracts (Conway & Briner, 2009). The primary goal of the present research was to identify how psychological contracts should be measured and theorized to reflect the natural experiences and language of employees. In Study 1, I examined a number of the theory’s assumptions by asking employees in interviews about their psychological contract experiences. A descriptive phenomenological approach allowed me to best capture the real life contexts through the eyes of the employees. The interviews involved discussions about employees’ perceived legal contract perceptions, the existence of psychological contracts, and the nature of their psychological contract experiences, if one existed. Interview findings revealed that while some psychological contract theory assumptions were supported (e.g., psychological contracts are perceived to evolve), others were not (e.g., universality of psychological contracts). The interview findings also identified the natural terminology used by employees, thus informing how psychological contracts should be measured. In Study 2, I used Study 1 findings to develop and test a revised feature-based measure of psychological contracts. I also further expanded Study 1 findings by quantifying the prevalence of and preference for psychological contracts, and their implications on organizational commitment, employee engagement, and turnover intentions. As predicted, those who did perceive a psychological contract were more likely to score high on commitment and engagement ratings, compared to those who did not. Contrary to predictions, there were no significant group differences for turnover intentions and contract preference did not play a moderating role on these relations. A revised measure is also presented in Study 2 which supported existing psychological contract theory typology (Relational and Transactional contract types). The contract type factors significantly predicted commitment, engagement, and turnover intention, mostly as hypothesized. The general discussion reviews how the two studies sequentially contribute to psychological contract measurement and theory. Guidelines are also presented to provide recommendations for both management and employees in how best to manage their psychological contracts

Does Consistency Predict Accuracy of Beliefs?: Economists Surveyed About PSA

Subjective beliefs and behavior regarding the Prostate Specific Antigen (PSA) test for prostate cancer were surveyed among attendees of the 2006 meeting of the American Economic Association. Logical inconsistency was measured in percentage deviations from a restriction imposed by Bayes’ Rule on pairs of conditional beliefs. Economists with inconsistent beliefs tended to be more accurate than average, and consistent Bayesians were substantially less accurate. Within a loss function framework, we look for and cannot find evidence that inconsistent beliefs cause economic losses. Subjective beliefs about cancer risks do not predict PSA testing decisions, but social influences do.logical consistency, predictive accuracy, elicitation, non-Bayesian, ecological rationality

Comment on “`Striped' rectangular rigid box with Hermitian and non-Hermitian PT symmetric potentials” [J. Math. Phys. 62, 102102 (2021)]

We show that the two-dimensional quantum-mechanical model proposed by Kulkarni and Pathak [J. Math. Phys. 62, 102102 (2021)] is separable. Consequently, instead of solving a two-dimensional Schrödinger equation, it is sufficient to solve two one-dimensional eigenvalue equations, one of which is exactly solvable. The solution to the remaining equation can be given in terms of a transcendental equation.Fil: Fernández, Francisco Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentin

Editorial : Fifteenth Anniversary of AU Journal of Technology

The very first issue 1(1) of the first volume of Assumption University Journal of Technology (AU J.T.) was published in July 1997. A year later, the journal was assigned the ISSN number 1513-0886. AU J.T. is a quarterly journal publishing four issues per academic year in July, October, January and April

Does consistency predict accuracy of beliefs?: Economists surveyed about PSA

Subjective beliefs and behavior regarding the Prostate Specific Antigen (PSA) test for prostate cancer were surveyed among attendees of the 2006 meeting of the American Economic Association. Logical inconsistency was measured in percentage deviations from a restriction imposed by Bayes’ Rule on pairs of conditional beliefs. Economists with inconsistent beliefs tended to be more accurate than average, and consistent Bayesians were substantially less accurate. Within a loss function framework, we look for and cannot find evidence that inconsistent beliefs cause economic losses. Subjective beliefs about cancer risks do not predict PSA testing decisions, but social influences do.logical consistency, predictive accuracy, elicitation, non-Bayesian, ecological rationality

Discussion of "Riverbed degradation below large capacity reservoirs"

CER58-9.Includes bibliographical references.Proc. paper 788