We show that for the Kauffman bracket skein module over the field of rational functions in variable A, the module of a connected sum of 3-manifolds is the tensor product of modules of the individual manifolds.

We determine all Riemannian manifolds for which the tangent sphere bundles, equipped with the Sasaki metric, are local or global Riemannian product manifolds.

The extended Alexander group of an oriented virtual link l of d components is defined. From its abelianization a sequence of polynomial invariants ∆i(u1, . . . , ud, v), i = 0, 1, . . . , is obtained. When l is a classical link, ∆i reduces to the well-known ith Alexander polynomial of the link in the d variables u1v, . . . , udv; in particular, ∆0 vanishes.

Let S be a proper partial geometry pg(s, t, 2), and let G be an abelian group of automorphisms of S acting regularly on the points of S. Then either t ≡ 2 (mod s+1) or S is a pg(5, 5, 2) isomorphic to the partial geometry of van Lint and Schrijver [11]. This result is a new step towards the classification of partial geometries with an abelian Singer group and further provides an interesting cha...

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No replication is truly direct, and I recommend moving away from the classification of replications as “direct” or “conceptual” to a framework in which we accept that treatment effects vary across conditions. Relatedly, we should stop labeling replications as successes or failures and instead use continuous measures to compare different studies, again using meta-analysis of raw data where possi...

The overarching goal of my research is to understand the biological role of C-reactive protein (CRP) in maintenance of health and propagation of disease. Diseases of interest include: systemic lupus erythematosus, multiple sclerosis, rheumatoid arthritis, septic arthritis, diabetes, Alzheimer's, cardiovascular disease, and microbial infection. We use a multi-faceted approach that entails studie...

The purpose of this paper is to identify attributive constructs of leadership and look at them from a critical perspective. First we will have a look on the self psychology according to Kohut (1996). Then leader role models created by subordinates are examined in detail. The theoretical basis for this empirical study is provided by attribution theory. Empirical role models for leaders are inves...

The extended Alexander group of an oriented virtual link l of d components is defined. From its abelianization a sequence of polynomial invariants ∆i(u1, . . . , ud, v), i = 0, 1, . . . , is obtained. When l is a classical link, ∆i reduces to the well-known ith Alexander polynomial of the link in the d variables u1v, . . . , udv; in particular, ∆0 vanishes.