A higher monitoring rate is highly desirable in the labs, but this goal is typically limited by sample throughput. In this study, we sought to assess the real-world applicability of fast, low-pressure GC-time-of-flight MS (LP-GC/TOFMS) for the identification and quantification of 150 pesticides in tomato, strawberry, potato, orange, and lettuce samples. Buffered and unbuffered versions of QuECh...

OBJECTIVES Parvovirus B19 (B19V) is a transfusion-transmissible virus. To obtain data about the prevalence, incidence, the course of B19V infection in blood donors and whether B19V might impair their blood counts, samples from blood donors with B19V infection were investigated. METHODS Blood donations were screened for B19V DNA using the Cobas TaqScreen DPX Test® in mini-pools. B19V DNA conce...

Background: Osteoporotic fractures are a major health problem among postmenopausal women. A significant proportion of subjects with low bone density are currently undiagnosed. Peripheral devices can be used for osteoporosis diagnosis, but their role in long-term monitoring of skeletal changes is unclear. The current study evaluated the ability of quantitative ultrasound (QUS) measurements to fo...

Bus terminal assignment with the objective of maximizing public transportation service is known as bus terminal location problem (BTLP). We formulate the BTLP, a problem of concern in transportation industry, as a p-uncapacitated facility location problem (p-UFLP) with distance constraint. The p-UFLP being NP-hard (Krarup and Pruzan, 1990), we propose evolutionary algorithms for its solution. A...

AIM Skinfold measurement is an inexpensive and widely used technique for assessing the percentage of body fat (%BF). This study assessed the accuracy of prediction equations for %BF based on skinfold measurements compared to dual-energy X-ray absorptiometry (DXA) in girls with type 1 diabetes and healthy age-matched controls. METHODS We included 49 healthy girls and 44 girls with diabetes age...

The assessment of fat proportion has received more attention and generated more different techniques than any other aspect of body composition, indicating its importance in nutrition studies, but also its difficulties. All in rivo methods have limitations and involve assumptions, not always fully appreciated. The assessment of accuracy is difficult, as the nearest to a reference technique is po...

OBJECTIVE To evaluate total bone mineral density (BMD) and body composition (% fat) in world class women field hockey players, members of the 1996 United States Olympic team. METHODS Whole body BMD (g/cm2) and relative body fatness (% fat) were assessed by dual energy x ray absorptiometry using a Lunar DPX-L unit with software version 1.3z. Body composition was also estimated by hydrostatic w...

AIMS To describe the birefringent saponified fatty acid crystalloids seen in pancreatic fat necrosis. METHODS A histological review, including polarising microscopy, of three cases of subacute or subclinical acute pancreatitis was performed. Histochemical analysis using Nile blue sulphate for lipid, Holczinger's copper rubeanate for fatty acids, and Alizarin Red S for calcium was performed in...

A number of methods exist for the estimation of abdominal obesity, ranging from waist-to-hip ratio to computed tomography (CT). Although dual-energy X-ray absorptiometry (DXA) was originally used to measure bone density and total body composition, recent improvements in software allow it to determine abdominal fat mass. Sixty-five men and women aged 18-72 yr participated in a series of studies ...

PURPOSE Our objective was to assess bone and muscular mass in children with meningomyelocele (MMC), and to analyze risk factors for osteoporosis and fractures based on densitometric examination. MATERIAL AND METHODS The study group included 30 patients (15 girls and 15 boys) with MMC, aged 6-17 years, treated in the Department of Pediatric Rehabilitation, University Hospital. Physiotherapeuti...