Determining the size of minimum vertex cover of a graph G, denoted by β(G), is an NP-complete problem. Also, for only few families of graphs, β(G) is known. We study the size of minimum vertex cover in generalized Petersen graphs. For each n and k (n > 2k), a generalized Petersen graph P (n, k), is defined by vertex set {ui, vi} and edge set {uiui+1, uivi, vivi+k}; where i = 1, 2, . . . , n and...

The trust literature distinguishes trustworthiness (the ability, benevolence, and integrity of a trustee) and trust propensity (a dispositional willingness to rely on others) from trust (the intention to accept vulnerability to a trustee based on positive expectations of his or her actions). Although this distinction has clarified some confusion in the literature, it remains unclear (a) which t...

The paper extends Breggren et al. (2008, EE) on ‘trust and growth: a shaky relationship” by incorporating recent developments in the trust-growth literature and using a robust methodological underpinning that accounts for the presence of outliers. The empirical evidence is based on 63 countries. Two main findings are established. First, the substantially documented positive trust-growth nexus i...

Researchers have remarked and recoiled at the literature confusion regarding the meanings of trust and distrust. The problem involves both the proliferation of narrow intra-disciplinary research definitions of trust and the multiple meanings the word trust possesses in everyday use. To enable trust researchers to more easily compare empirical results, we define a cohesive set of conceptual and ...

The elderly is the most vulnerable population group during COVID-19 pandemic. Unfortunately, vaccination uptake against among seniors was considered low. This research aimed to point out significant factor as recommendation for government develop strategy in increasing participation elderly. variables are health belief model, trust authorities and media, experience regarding COVID-19, general b...

All laboratory animals shall be provided some form of environmental enrichment (EE) in the nearest future (Directive 2010/63/EU). Displacing standard housing with EE entails the possibility that data obtained under traditional housing may be reconsidered. Specifically, while EE often contrasts the abnormalities of consolidated disease models, it also indirectly demonstrates that their validity ...

OBJECTIVE To investigate whether political mistrust in the Riksdag (the national parliament in Sweden) is an independent characteristic of cannabis smokers, or whether it reflects low confidence in people in general, and therefore low social capital. METHOD The 2004 public health survey in Skåne is a cross-sectional postal questionnaire study answered by 27,757 respondents aged 18-80 with a 5...

We propose to solve generalized bilevel programs by a trust region approach where the “model” takes the form of a bilevel program involving a linear program at the upper level and a linear variational inequality at the lower level. By coupling the concepts of trust region and linesearch in a novel way, we obtain an implementable algorithm that converges to a strong stationary point of the origi...

We describe a generalized Levenberg-Marquardt method for computing critical points of the Ginzburg-Landau energy functional which models superconductivity. The algorithm is a blend of a Newton iteration with a Sobolev gradient descent method, and is equivalent to a trust-region method in which the trustregion radius is defined by a Sobolev metric. Numerical test results demonstrate the method t...

Background: Childhood trauma encompasses neglect, abuse, abandonment, witnessing abuse, and having mentally ill and/or parent(s) who engaged in substance abuse. Survivors of trauma are more likely to report insecure attachment styles. Thus, the current study aimed to investigate the indirect pathways underlying the relationship between childhood trauma and romantic attachment among adults in In...