In this paper, we present equivalent characterizations of L-closure systems on lower bounded complete L-ordered sets and complete L-lattices, respectively. These results demonstrate the feasibility of notion of fuzzy closure system developed in our previous work (L.-K. Guo, G.-Q. Zhang, Q.-G. Li: Fuzzy closure systems on L-ordered sets. Math. Log. Quart. 57 (3) (2011), 281-291.). Also we develo...

Several cosmological tensions have emerged in light of recent data, most notably the inferences parameters ${H}_{0}$ and ${\ensuremath{\sigma}}_{8}$. We explore possibility alleviating both these simultaneously by means Albrecht-Skordis ``quintessence'' potential. The field can reduce size sound horizon ${r}_{s}^{*}$ while concurrently suppressing power matter density fluctuations before it com...

This study explores the ways in which the affordances of social media not only increase open communication and knowledge sharing, but also promote covert behavior, creating dialectical tensions for distributed workers that must be communicatively managed. Drawing on a case study of the engineering division of a distributed high tech start-up, we find our participants navigate tensions in visibi...

This paper introduces the concept of a dynamic key infrastructure for Grid. It utilises the properties of Identity-based Cryptography (IBC) to simplify key management techniques used in current Public Key Infrastructure (PKI) settings for Grid. This approach can offer greater simplicity, flexibility, and enhanced computation trade-offs.

One of the most significant changes in the twentieth century is increasing aging population and many countries have already faced t or will experience it in the near future (1). The improvement of health situations leading to reduction of death and child mortality rate, increase of life expectancy and execution of birth control policies have led to an increase in aging population (1-4). Statist...

The present study examined age differences in exposure and reactivity to interpersonal tensions among White and Black Americans. Participants from the National Study of Daily Experiences II (NSDE II, n= 1696 White and n = 239 Black; ages 34 to 84) reported their experiences of daily interpersonal tensions and well-being (positive and negative affect) over 8 days and provided salivary cortisol s...