To what extent do friendship ties influence the conversation structure in open groups? Openly accessible Facebook groups offer the opportunity to examine how individuals leverage their existing friendship relations when speaking to a large and often heterogeneous audience. For example, those with many friends in the group may receive more positive signals from others and also may have their con...

We present an algorithm which, given a deformation with section of a reduced plane curve singularity, computes equations for the equisingularity stratum (that is, the μ-constant stratum in characteristic 0) in the parameter space of the deformation. The algorithm works for any, not necessarily reduced, parameter space and for algebroid curve singularities C defined over an algebraically closed ...

Several northeast-trending transverse faults cut the Purcell succession and parts of the Lower Paleozoic succession in the Hughes Range. Relationships along unconfonnities within and at the base of the Lower Paleozoic strata provide evidence of the natilre and timing of displacement on these faults. Field mapping of the faults and unconformities hounding three Lower Paleozoic formntions have be...

The effectiveness of consultants in meeting the needs of clients in the built environment of a developing economy is influenced by their recognition and application of context-relevant competencies. This paper presents a model of the important competencies required of those providing current quantity surveying services and discusses the critical inputs expected of key role-players. A review of ...

Thermo-diffusion effect on free convection heat and mass transfer from a vertical surface embedded in a liquid saturated thermally stratified non Darcy porous medium has been analyzed using a local non-similar procedure. The wall temperature and concentration are constant and the medium is linearly stratified in the vertical direction with respect to the thermal conditions. The fluid flow, temp...

Bibliometric measures for scientific journals such as journal impact factor, cited half-life, and article influence score are readily available through commercial companies such as Thomson Reuters, among others. These metrics were originally developed to help librarians in collection building and are based on the citation rates of published papers. Yet, they are increasingly being used, albeit ...

Situated in university science departments as potential science-education change agents, science faculty with education specialties (SFES) reported differences in the origin of their positions depending on the nature of their institution. For instance, SFES at PhD-granting institutions most commonly reported being hired to relieve other faculty from teaching and service burdens. At MS-granting ...

The present study used a stratified random sample of undergraduate students at a major Metropolitan University in the Gauteng province of South Africa to examine aspects of the contact hypothesis as originally formulated by Gordon Allport. Specifically, the study sought to examine the effects of two social settings, namely, educational and religious settings on students’ attitudes toward interr...

One popular solution to deal with large-scale relational networks is to derive a representative sample from huge relational networks. We expect this sample could represent the origin relational network well so that the sampled network can be used for simulations and further analysis instead of the origin one. In this paper, we propose a network stratified sampling algorithm using topologically ...