Challenges in launching a community-based group walking program for adults affected by cancer.

Walking is one form of physical activity (PA) individuals affected by cancer have indicated strong preference for and interest in, regardless of disease or treatment status. We developed a community-based, outdoor, peer-led walking program for adults affected by cancer called Walk it Out (WIO). Over the span of six months, we were unable to meet targets for peer-leaders (to lead the walking groups; n = 5 self-identified) or participants (n = 0 self-identified; n = 3 recruited via peer-leaders).

Maternal lineages in native Canadian equine populations and their relationship to the Nordic and Mountain and Moorland pony breeds.

A 378-bp section of the mitochondrial displacement loop was used to estimate genetic diversity in the native Canadian equine populations. The inclusion of 10 Mountain and Moorland, 3 Nordic pony breeds, 2 feral populations, and 5 horse breeds were also investigated as they may have influenced the development (or rejuvenation) of the native Canadian populations. A total of 281 samples were sequenced, which produced 75 haplotypes derived from 54 informative sites.

Genetic diversity and admixture among Canadian, Mountain and Moorland and Nordic pony populations.

As part of the requirements of the Convention on Biological Diversity, Canada has been investigating the genetic diversity of its native equine and pony populations. Along with examining four indigenous Canadian equine populations (Canadian horse, Lac La Croix pony, Newfoundland pony and Sable Island population), another 10 Mountain and Moorland, three Nordic, four horse and two feral equine populations (thought to have influenced some pony breeds) were also investigated. In total, 821 individuals were genotyped at 38 microsatellite loci.

Fluorine--a current literature review. An NRC and ATSDR based review of safety standards for exposure to fluorine and fluorides.

Background: A review of the literature of the element fluorine and its bonded-form, fluoride, was undertaken. Generally regarded as safe, an expanding body of literature reveals that fluoride's toxicity has been unappreciated, un-scrutinized, and hidden for over 70 years. The context for the literature search and review was an environmental climate-change study, which demonstrated widespread fluoride contamination by smokestack emissions from coal-fired electricity-generating plants.