In this study, the effect of cold temperature on the physical activity profiles of professional soccer players in official match-play was investigated. Computerised motion-analysis was used to analyse performance in 9 players (4 defenders and 5 midfielders) in 4 temperature ranges: ≤ 5°C (29 matches), 6-10°C (62 matches), 11-20°C (48 matches) and ≥ 21°C (27 matches). Performance was analysed pe...

Let G = (V, E) be a graph without isolated vertices. A set D ⊆ V is a d-distance paired-dominating set of G if D is a d-distance dominating set of G and the induced subgraph 〈D〉 has a perfect matching. The minimum cardinality of a d-distance paired-dominating set for graph G is the d-distance paired-domination number, denoted by γd p(G). In this paper, we study the ddistance paired-domination n...

The d i m m e drctrrbutron of a binary code C' is the sequence ( F ! ):lo defined as follows: Let B, ( u t ) he the number of codewords at distance J from the codeword U , and let B, be the average of B, ( I I ) over all n' in C. In this correspondence we study the distance distribution for codes of length t i and minimal distance h n , with h > 0 fixed and n X. Our main aim is to relate the si...

We present new and improved data structures that answer exact node-to-node distance queries in planar graphs. Such data structures are also known as distance oracles. For any directed planar graph on n nodes with non-negative lengths we obtain the following: • Given a desired space allocation S ∈ [n lg lgn, n], we show how to construct in Õ(S) time a data structure of size O(S) that answers dis...

In the title compound, C(14)H(9)NO(2), the phenyl ring makes a dihedral angle of 50.59 (5)° with the mean plane of the isatin fragment. In the crystal, mol-ecules are linked through weak inter-molecular C-H⋯O hydrogen bonds. The crystal structure also exhibits two slipped π-π inter-actions between the benzene rings of neighbouring mol-ecules [centroid-centroid distance = 3.968 (3) Å, inter-plan...

Proof. We first prove that every free cell accessible from s becomes a frontier at least once. We prove this by induction on the Manhattan distance d of the cells from s. As the base case, consider d = 0. The only cell with d = 0 is s itself, and it is added to the frontier set F in line 3 of OnlineCoverage. We now assume correctness for d = k and prove for d = k + 1. Consider a cell c with dis...

edge distance-balanced graphs are graphs in which for every edge $e = uv$ the number of edges closer to vertex $u$ than to vertex $v$ is equal to the number of edges closer to $v$ than to $u$. in this paper, we study this property under some graph operations.

DNA barcoding using the cytochrome c oxidase subunit 1 gene (COI) is frequently employed as an efficient method of species identification in animal life and may also be used to estimate species richness, particularly in understudied faunas. Despite numerous past demonstrations of the efficiency of this technique, few studies have attempted to employ DNA barcoding methodologies on a large geogra...

Ceratophysella comosa sp. nov. was collected from ascomata of Ciborinia canielliae in Japan and the morphological and molecular characteristics of the species are described here. The species has 3 + 3 cephalic spines as in Ceratophysella loricata and Ceratophysella pilosa, but a plurichaetosis intermediate between C. loricata (absent) and C. pilosa (strong). The new species can be distinguished...

We investigate a correlation between genetic diversity of hepatitis C virus population and the level of viral RNA accumulation in patient blood. Genetic diversity is defined as the mean Hamming distance between all pairs of virus RNA sequences representing the population. We have found that a low Hamming distance (i.e. low genetic diversity) correlates with a high RNA level; symmetrically, high...