OBJECTIVE To determine whether bifocal and prismatic bifocal spectacles could control myopia in children with high rates of myopic progression. METHODS This was a randomized controlled clinical trial. One hundred thirty-five (73 girls and 62 boys) myopic Chinese Canadian children (myopia of > or =1.00 diopters [D]) with myopic progression of at least 0.50 D in the preceding year were randomly...

illiteracy in studies on quality of life (qol) and self-efficacy (se) of diabetic patients has been ignored. illiteracy and diabetes have high rates in developing countries. the aim of this study was to identify the effect of literacy level on health outcomes. to achieve this, we studied health outcomes such as se, self-management behaviors and health-related quality of life (hrqol) in diabetic...

Tada! Highly functionalized chiral dibenzazepinones are obtained by a mild palladium(0)-catalyzed enantioselective C-H arylation with excellent selectivities by using simple taddol phosphoramidite ligands. The amide tether allows exclusive regioselectivity through a rare eight-membered palladacycle intermediate.

As part of its 100th-anniversary celebration, the Pan American Health Organization has named 12 persons as "Public Health Heroes of the Americas" in recognition of their noteworthy contributions to public health in the Region of the Americas. Over the course of this year, the Revista Panamericana de Salud Pública/Pan American Journal of Public Health will be carrying pieces written by or about ...

this study was performed to determine the effect of injecting selenium into pregnant heifers at the last stage of gestation on the serum se, cu, zn and fe status of the heifers and their calves. fifty holstein heifers were randomly assigned to one of five treatments. four and two weeks before the expected time of calving, the heifers were injected intramuscularly 10 ml (t1), 20 ml (t2), 30 ml (...

Although Se is essential for antioxidant and thyroid hormone function, factors influencing its requirement are not well understood. A survey and two experiments were conducted to determine the influence of cattle breed and age on selenoprotein activity and the effect of maternal Se supplementation on cow and calf selenoprotein activity and neonatal thyroid hormone production. In our survey, fou...

The objective of this study was to determine if levels of mRNA encoding cytosolic glutathione peroxidase (cGPx) and thioredoxin reductase (TrxR-1) change during fetal development, and if maternal Se intake during gestation affects the mRNA levels of these proteins. Prepubertal gilts (n = 24) were randomly assigned to either Se-adequate (0.39 ppm of Se; n = 12) or Se-deficient (0.05 ppm of Se; n...

In the previous paper of this series, the retention characteristics of 4-methyl sterols were investigated with a view for establishing a systematic relationship between the structure of sterols and their gas chromatographic characteristics. The present report deals an extended study on 6methyl sterols prepared from cholesterol. The retention data for five 6-methyl sterols and for their derivati...

Povzetek. Sodobne organizacije se spreminjajo zelo pogosto. Spremembe se poskuša izvesti hitro in učinkovito. Spremembe pogosto vključujejo spremembe IS zaradi njegovega pomena v organizacijah. Odpor do sprememb spada med ključne dejavnike uspeha večjih projektov in programov IT. Obvladovanje odpora ne pomaga organizacijam zgolj izvesti spremembe hitreje in učinkoviteje, temveč je hkrati tudi p...

Background: Thalassemia represents a serious health problem in Iran because of its heterogeneous frequency and the existing endogamy system. It is an inherited blood disease characterized by the under production of normal hemoglobin, the oxygen-carrying protein in red blood cells. Materials and Methods: In this study, serum antioxidants including selenium (Se), zinc (Zn) and copper (Cu) were m...