The NP-hard 2-Club problem is, given an undirected graph G = (V,E) and ` ∈ N, to decide whether there is a vertex set S ⊆ V of size at least ` such that the induced subgraph G[S] has diameter at most two. We make progress towards a systematic classification of the complexity of 2-Club with respect to a hierarchy of prominent structural graph parameters. First, we present the following tight NP-...

BACKGROUND Talented football players are expected to overcome large training and match loads, indicating a high weekly level of physical activity (PA). AIMS With the use of accelerometers, the aim of this study was to objectively describe the players' total time spent in moderate-to-vigorous PA (MVPA), vigorous PA (VPA) and very vigorous PA (VVPA) per day in 1 week. Since high-intensity PA ha...

A kidney exchange is a centrally-administered barter market where patients swap their willing yet incompatible donors. Modern kidney exchanges use 2-cycles, 3-cycles, and chains initiated by non-directed donors (altruists who are willing to give a kidney to anyone) as the means for swapping. We propose significant generalizations to kidney exchange. We allow more than one donor to donate in exc...

In this paper, we extend Schweizer’s open club model to clubs with goods that have a semipublic nature rather than a pure public nature. We study limit core allocations, which are those allocations that remain in the core of a replicated economy. An equivalent notion for open clubs with pure public goods was Schweizer’s concept of club efficiency under a variable number of economic agents. We s...

The paper advocates and implements a new panel structure model to investigate the club convergence hypothesis. The model consists of a set of linear dynamic models that characterize the behavior of growth rates within each convergence club and a logistic regression that classifies these linear models. An EM algorithm is used to estimate the system by maximum likelihood and inference is conducte...

0

Journal clubs are an integral element of residency training. We report the successful implementation of a monthly structured journal club in our anesthesia residency program. Based on resident surveys before and one year after its start, the journal club led to a significantly higher confidence in how to critically appraise literature and present a manuscript. The journal club also improved the...

1.1 Definition. Let X be a nonempty set. A set c ⊂ P(X) is club in P(X) if there is a function f : X → X for which c is the set of A ⊂ X closed under f . Given a cardinal κ ≤ |X|, c is club in [X] (or in [X]) if c is the set of A ∈ [X] (or [X]) closed under f . A set a ⊂ P(X) is stationary in P(X) if it intersects every club subset of P(X), and stationary in [X] (or [X]) if it intersects every ...

The sliding stop method of fielding in cricket is gaining popularity in schools and club cricket through its frequent exposure on television. The case history is reported of a cricketer who suffered a torn medial meniscus in his knee, a rare cricketing injury, while performing this technique incorrectly in a club game. The correct method of performing the technique is described in coaching manu...

In this paper, we propose a new full-fuzzy video ratecontrol algorithm (RCA) for variable bit rate (VBR) videoapplications. The proposed RCA provides high qualitycompressed video with a low degree computational complexity.By controlling the quantization parameter (QP) on a picturebasis, it produces VBR video bit streams. The proposed RCAhas been implemented on the JM H.264/AVC video codec andth...