At 10-14 weeks of gestation more than 80 per cent of fetuses affected by trisomy 21 can be detected by a screening programme based on a combination of maternal age and fetal nuchal translucency thickness (NT). The screen positive group in such a programme also identifies fetuses with sex chromosome abnormalities. In this ongoing multicentre screening study, involving 61,972 singleton pregnancie...

in this research thirty specimens of duodenum of lori-bakhtiari sheep from abattoir were collected. the specimens were selected from male healthy sheep and aged 1 years. after collecting them and determining of three parts of duodenum (cranial, descending and ascending parts), the lengths of them were measured. for histological studies, each part of duodenum divided to two centimeter pieces and...

Abstract. This paper describes a dataset consisting of 47 hyperspectral-reflectance measurements plastic litter samples. The samples include virgin and real from the Port Antwerp. They were measured in dry conditions Flemish Institute for Technological Research (VITO) calibration facility, selection also wet submerged water tank at Flanders Hydraulics. construction on top allowed us to submerge...

An antibody-based analytical method for the detection of a chemical flame retardant using antibody fragments isolated from an alpaca has been developed. One specific chemical flame retardant congener, 2,2',4,4'-tetrabrominated diphenyl ether (BDE-47), is often the major poly-BDE (PBDE) congener present in human and environmental samples and that which is the most frequently detected. An alpaca ...

BACKGROUND Acinetobacter species are gram-negative coccobacilli belonging to the group of Non-Fermenting Gram-Negative Bacilli, which are ubiquitous in nature. They cause outbreaks in intensive care units and healthcare settings, and are becoming increasingly drug resistant. AIMS To determine the prevalence of multi-drug resistant Acinetobacter species from various clinical samples. METHOD ...

STUDY OBJECTIVE To assess the effectiveness of a telephone reminder in increasing responses to postal surveys and to calculate the differential costs per completed questionnaire. DESIGN Randomised controlled trial. SETTING Australian university and rehabilitation medicine practice. PARTICIPANTS The trial was conducted in 1999 among the 143 non-respondents to a questionnaire about work rel...

Objective: Dental solid wastes often contain hazardous substances. The first step of management of dental solid wastes includes detection and classification of these substances. This study aimed to qualitatively and quantitatively assess the management of solid wastes by dental offices in Urmia city in 2013. Methods: This descriptive study was conducted on all private dental offices in Urmia...

Sixty-nine blood samples from 47 patients infected with human immunodeficiency virus were analyzed by using PCR to detect Mycobacterium avium. The sensitivity can be up to 95.7%, depending on the detection method used and the number of blood samples analyzed from each patient. The procedure can be helpful in the diagnosis of mycobacterial disease.

Patients undergoing resection of hepatic metastases of colorectal cancer have a high risk of extrahepatic recurrence, most likely caused by early tumor cell dissemination or the manipulation of liver tumors during surgical resection. Using immunocytochemistry, we studied 47 patients for cytokeratin (CK)-positive (+) cells in: a) bone marrow (BM) samples to determine whether tumor cell dissemina...

A simple trap is described that captures ahopods as they crawl up tree boles. Comtmcted &om metal hnnels, plastic sandwich containers, and sp imen cups, the traps can be assen~bled by one person at a rate of 5 to 6 per hour and installed in 2 to 3 nrinutes. S p i m e n colle~tion required 15 to 20 seconds per trap. In 1383, h a traps were phced on each tree. In 1994, a single trap per tree with...