Passive membrane sampler for assessing VOCs contamination in unsaturated and saturated media.

Passive sampling (PS) is a method employed to detect volatile organic compounds in groundwater and soil gas. This study attempted to manufacture a polydimethylsiloxane (PDMS) dialysis passive sampler for potential application in detecting trichloroethylene (TCE) in aqueous and gaseous phases. The equilibrium time of the passive sampler was initially determined, followed by multilayer passive sampling in a three-dimensional sandbox to construct a tomography of TCE vapor spatial distribution in the vadose zone above the saturated water level.

[Improving the Follow-Up Completion Rate of Community-Dwelling Individuals Who Screened Positive for Colorectal Cancer].

Background & Problems: Early screening and early treatment of colorectal cancer increases the 5-year-survival rate of early stage cancer by 90%. However, a lack of knowledge regarding screening opportunities among community residents affects their willingness to seek medical help and delays treatment. The World Health Organization estimated that deaths from colorectal cancer in the next 20 years will increase from 8.

Effective removal of Aroclor 1254 and hexachlorobenzene in river sediments by coupling in situ phase-inversion emulsification with biological reductive dechlorination.

River sediment contamination is a critical environmental problem. Concentrations of certain hydrophobic organic compounds (HOCs) in sediments in Taiwan are ranked at the top in the world. In this study, we proposed a novel in situ phase-inversion emulsification and biological reductive dechlorination (ISPIE/BiRD) method that integrates (1) heating contaminated sediments by hot water-in-oil emulsion to increase the contact between hydrophobic organic contaminants (HOCs), to accelerate the mass transfer between two phases, and to select heat-tolerant hydrogen-producing bacteria, (2) ISPIE forming oil-in-water emulsion to enhance recovery of HOCs by pushing cool water and nutrient buffer through the sediment column, and (3) subsequent BiRD using residual emulsion in sediment.

ACE I/D, ACTN3 R577X, PPARD T294C and PPARGC1A Gly482Ser polymorphisms and physical fitness in Taiwanese late adolescent girls.

Physical performance of youth is influenced by various factors, including body composition, biological maturity status, level of habitual physical activity, and muscular strength. Muscular strength has been largely attributed to genetic effects. To exclude possible confounding effects from various acquired factors, this study examined the relationships between polymorphisms of the angiotensin-converting enzyme (ACE), α-actinin-3 (ACTN3), peroxisome proliferator-activated receptor delta (PPARD), and peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PPARGC1A) genes and performance as measured by six fitness tests (handgrip strength of dominant hand, 30- and 60-s sit-ups, standing long jump, 60-m dash, and 800-m run) in 170 sedentary adolescent girls with the adjustment of anthropometric characteristics.