Many women do not receive folic acid supplements before conception. In response, most of Canada's cereal grain products were being fortified with folic acid by January, 1998, thereby providing an additional 0.1-0.2 mg per day of dietary folate to the Canadian population. We assessed the effect of supplementation on prevalence of open neural tube defects in the province of Ontario. Among 336 963...

The most reliable methods of determining sex from skeletal remains are based on examination of the hip bone. However, hip bone specimens may be incomplete or fragmented. The purpose of this study was to identify the best-preserved regions of the hip bone with the greatest diagnostic value for sex determination. The Bruzek method of visual sex determination using 11 anatomic hip bone features wa...

Indentation creep behaviour of iron aluminide intermetallic (Fe–28Al–3Cr) was studied in the temperature range of 843–963 K. The hardness and the plasticity parameter were also calculated from room temperature to 1273 K. The variation of hardness with time showed that the stress exponent ðnÞ was weakly dependent on temperature. Thermal activation parameter-activation area and energy were also c...

INTRODUCTION....................................................................................................... 956 I. SCULPTING, SHAPING, AND SIZING CHILDREN: FOCUS CASES.............................. 959 A. WESTERNIZING ASIAN EYES..................................................................... 960 B. HORMONES FOR STATURE ..................................................................

BERNE, ROBERT h/l. Cardiac nucleotides in hypoxia: possible role . . in regulation of coronary blood flow. Am. J. Physiol. 204(2) : 317-322. I 963 .-Experiments were performed on isolated cat hearts perfused with Tyrode’s solution and intact hearts of open-chest dogs. Cardiac hypoxia resulted in a decrease in coronary vascular resistance and a release of significant amounts of inosine and hypox...

The aim of this study was to obtain saccharide (dextran and sucrose)-coated maghemite nanoparticles with antibacterial activity. The polysaccharide-coated maghemite nanoparticles were synthesized by an adapted coprecipitation method. X-ray diffraction (XRD) studies demonstrate that the obtained polysaccharide-coated maghemite nanoparticles can be indexed into the spinel cubic lattice with a lat...

improved recognition of the symptoms, greater parental concern, and possible epigenetic factors and modifications of gene expression. The theory that the measles-mumps-rubella (MMR) vaccine and thimerosol were responsible for the apparent increased prevalence of autism has largely been put to rest (Madsen KM et al. Pediatrics 2003;112:604-606; Smeeth L et al. Lancet 2004;364:963-969). ASD has a...

The analysis of spatial structure, ie, the encoding of relative positions between pattern elements, was studied in central and eccentric vision. In a two-alternative forced-choice task the observer had to discriminate between two patterns consisting of short line segments. At each trial the two patterns were flashed for 140 msec and the observer indicated whether the patterns were identical or ...

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For many years, commercial-grade hexane has been the preferred solvent for extracting oil from cottonseed. Recent environmental and health concerns about hexane may limit the use of this solvent; therefore, the need for a replacement solvent has become an important issue. Heptane is similar to hexane, but does not have the environmental and health concerns associated with the latter. On a labor...