In the past, relations of diffusive resistance to stomatal geometry have concerned circular pores or pores that are replaced by equivalent circles of the same area. We calculated the resistance for general shapes that include the realistic slit. The resistance comprises two terms. The first is an outer resistance that depends only on ventilation and leaf geometry and is independent of stomata. ...

BACKGROUND Health care databases provide a widely used source of data for health care research, but their accuracy remains uncertain. We analyzed data from the 1985 National DRG Validation Study, which carefully reabstracted and reassigned ICD-9-CM diagnosis and procedure codes from a national sample of 7050 medical records, to determine whether coding accuracy had improved since the Institute ...

BACKGROUND AND OBJECTIVES Outcomes of older patients with ESRD undergoing RRT or conservative management (CM) are uncertain. Adequate survival data, specifically of older patients, are needed for proper counseling. We compared survival of older renal patients choosing either CM or RRT. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS A retrospective survival analysis was performed of a single-ce...

This study investigated the performance and stability of an anaerobic baffled filter reactor in the treatment of algae-laden water from Taihu Lake at several organic loading rates. The study also evaluated the capability of soft filler to train granule sludge and improve the anaerobic environment and sludge activity in the anaerobic baffled reactor (ABR), thereby enhancing the treatment efficie...

OBJECTIVE To investigate variables potentially associated with abdominal obesity among childbearing-age women. METHODS A total of 781 women were studied based on data from the Nutrition and Health Survey conducted in 1996 in the municipality of Rio de Janeiro, Brazil. Abdominal obesity was defined as waist girth (WG) > 80 cm or waist:hips girth ratio (WHR) > 0.85. Statistical analysis involve...

Gamma-aminobutyric acid (GABA) metabolism was studied in rats chronically exposed to 2.86 GHz microwaves at an incident power level of 10 mW/cm or acutely exposed to incident power levels of 40 or 80 mW/cm. No changes occurred in whole brain GABA levels or L-glutamic decarboxylase activity following these exposures. These results suggest that an altered GABA metabolism is not involved in report...

Anthropometric indices of adiposity include BMI, waist circumference and waist:height ratio. In the recruitment phase of a prospective cohort study carried out between 1998 and 2002 we studied a population sample of 11 786 white Caucasian non-pregnant women in Southampton, UK aged 20-34 years, and explored the extent to which proposed cut-off points for the three indices identified the same or ...

Using plasma amyloid beta protein (Abeta42) levels as an intermediate, quantitative phenotype for late onset Alzheimer's disease (LOAD), we previously obtained significant linkage at approximately 80 cM on chromosome 10. Linkage to the same region was obtained independently in a study of affected LOAD sib-pairs. Together, these two studies provide strong evidence for a novel LOAD locus on chrom...

This paper presents the influence of polyolefin fiber on flexural and shear attitude flat slabs. Three slab sets (80 cm × 80 cm) were tested, each with a thickness 10 cm. In first set (S1), effect content behavior was considered. Therefore, four specimens cast, one which considered as control specimen no content, while other three included fibers at 0.5, 1, 1.5 percent total concrete volume. Th...

In order to obtain a reliable estimate of the lifetime of the BaBar drift chamber, a dedicated aging test chamber has been constructed. The working gas mixture is Helium/Isobutane (80/20). After accumulating up to 0.11C/cm charge dose the anode wire showed no appreciable signs of aging, but the field wires showed a small Malter effect. At 0.2C/cm the gas gain dropped B6–9% and the Malter effect...