The prevalence of childhood obesity and overweight has grown significantly in France in the past twenty years. Obesity is associated with many diseases such as metabolic syndrome, diabetes mellitus, cardiovascular disease, hypertension, cancer, and depression. These diseases once confined to adults are increasingly being observed in children. Thus there are...
In order to investigate how submarine weathering processes may affect the water balance of sediments at convergent plate margins, six sediment cores were retrieved off Central Chile at water depth between ∼800 and 4000 m. The sediment solid phase was analyzed for its major element composition and the pore fluids...
Through application of carbon (C) and nitrogen (N) stable isotope analyses, we investigated the benthic trophic structure of
the upper-slope off southern Chile (~45°S) including a recent methane seep area discovered as part of this study. The observed
fauna comprised 53 invertebrates and seven fish taxa, including remains of chemosymbiotic...
Western forests have become increasingly fragmented landscapes dominated by young stands. Given that western Oregon forests largely consist of headwater systems, there is a need to better understand how headwater forest taxa and their habitats are impacted by forest management practices. Several amphibian species associated with forested headwater systems have...
Determination of the source and fate of natural (higher plant lipids, marine
lipids, etc.) and anthropogenically (e.g., petroleum, coal emissions) derived
hydrocarbons and oxygenated compounds in the environment was accomplished
using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS)
to characterize or identify molecular biomarkers to be utilized as tracers....
Mountain pine beetle, Dendroctonus ponderosae Hopkins, is a primary agent of forest disturbance in western North America. Episodic outbreaks occur at the convergence
of favorable forest age and size class structure and climate patterns. Recent outbreaks have exceeded the historic range of variability of D. ponderosae-caused tree
mortality affecting ecosystem...
Sources of polar/water-soluble organic compounds conjunctly with apolar biomarkers were characterized in natural organic matter. This multi-biomarker approach was accomplished by a simple analytical method consisting of extraction with dichloromethane:methanol (2:1, v/v), silylation and analysis by gaschromatography- mass spectrometry (GC-MS). Polar and apolar biomarkers, derived mainly from higher plants and...
BACKGROUND: Parents play a significant role in shaping youth physical activity (PA). However, interventions targeting PA
parenting have been ineffective. Methodological inconsistencies related to the measurement of parental influences may be a
contributing factor. The purpose of this article is to review the extant peer-reviewed literature related to the measurement...
The current conditions of many seasonally dry forests in the western and southern United States, especially those that once experienced low- to moderate-intensity fire regimes, leave them uncharacteristically susceptible to high-severity wildfire. Both prescribed fire and its mechanical surrogates are generally successful in meeting short-term fuel-reduction objectives such that treated...
Human body flight is a relatively young sport with a largely undocumented history.
Human body flight is an umbrella term for any sport involving maneuvering one’s body in a
meaningful way through a column of relative wind. Human body flight includes skydiving,
which was the origin of human body flight,...