We study a special case of Hamming-Huffman trees, in which both data compression and error detection are tackled on the same structure. Given hypercube Q n dimension , we interested some aspects its vertex neighborhoods. For subset L vertices neighborhood is defined as union neighborhoods . The minimum problem that determining cardinality over all those sets This well-known has already been sol...

A vertex coloring of a graph is said to be conflict-free with respect neighborhoods if for every non-isolated there color appearing exactly once in its (open) neighborhood. As defined [Fabrici et al., Proper Conflict-free and Unique-maximum Colorings Planar Graphs Respect Neighborhoods , arXiv preprint], the minimum number colors any such proper G PCF chromatic denoted ? pcf ( ) . In this paper...

shape is regarded as one of outward characteristics of islamic seals. this characteristic, which is part of common traits of all different areas of seal studies, could be defined as framework of circumference of seals impression on written materials and documents, which in fact results from the shape of seals surfaces. shape has been considered as one of the ways of recognizing the administrati...

The neighborhood has been used as a sampling unit for exploring variations in health outcomes. In a variety of studies census tracts or ZIP codes have been used as proxies for neighborhoods because the boundaries are pre-defined units for which other data are readily available. However these spatial units can be arbitrary and do not account for social-cultural behaviors and identities that are ...

In laboratory medicine, several studies have described the most frequent errors in the different phases of the total testing process, and a large proportion of these errors occur in the pre-analytical phase. Schemes for registration of errors and subsequent feedback to the participants have been conducted for decades concerning the analytical phase by External Quality Assessment (EQA) organizat...

BACKGROUND Few neighborhood observational measures have been replicated by separate research teams in different cities. PURPOSE This study replicates the neighborhood active living potential observation measure in Saskatoon, Saskatchewan, Canada. METHODS Observers (n=5) participated in a 3-day neighborhood active living potential training session. Observers rated 60 neighborhoods in Saskato...

BACKGROUND : The goal of this study was to investigate cross-sectional associations between features of neighborhoods and hypertension and to examine the sensitivity of results to various methods of estimating neighborhood conditions. METHODS : We used data from the Multi-Ethnic Study of Atherosclerosis on 2612 individuals 45-85 years of age. Hypertension was defined as systolic blood pressur...

Place-based approaches to community change have become increasingly popular strategies for addressing significant social problems. With their intentional focus on 'place,' most efforts have sought to gain greater understanding into how neighborhood contexts affect people. However, while both aggregate characteristics and social dynamics of neighborhoods have been subject to scrutiny in the lite...

The authors investigated a possible contextual effect of neighborhood on individual use of hormone replacement therapy (HRT) and antihypertensive medication (AHM) and the impact of neighborhood social participation on individual use of these medications. They attempted to disentangle contextual from individual influences. Multilevel logistic regression modeling was used to analyze data on 15,45...