Hygienic Chemical Studies on Harmful Elements. III. Selenium Content of Human Hair

Human Hair Studies: III. Refractive Index of Crown Hair

the washback effect of discretepoint vs. integrative tests on the retention of content in knowledge tests

در این پایان نامه تاثیر دو نوع تست جزیی نگر و کلی نگر بر به یادسپاری محتوا ارزیابی شده که نتایج نشان دهندهکارایی تستهای کلی نگر بیشتر از سایر آزمونها است

Further Studies on Chemical Evaluation of Lauha Bhasma Iii

Samples of marketed Lauha bhasma from different manufactures were evaluated chemically. Apart from the 81 -85% iron content, the 15-19% other constituents were determined therein. Ferrous ferric and total iron in a single aliquot were determined spectrophotometrically, Qualitative and chromatographic analysis indicate the presence of sodium, potassium, calcium copper and cobalt in the samples, ...

Studies on human cataracts. III. Structural elements in nuclear cataracts and their contribution to the turbidity.

Gross correlation coefficient between light-scattering intensity and the optical parameters obtained for 48 sections of eight lenses with nuclear cataracts were evaluated. On the basis of these and other data in the literature, the structural elements, within the lens fiber are identified. These give rise to the optical parameters. It is proposed that three processes contribute to nuclear catar...

Influence of hair straightening on ethyl glucuronide content in hair

Aims: The aim of the study was to analyse ETG in hair samples treated by a hair straightener. Methods: Positive EtG hair samples were treated with hair straightener during 1 min at 200°C. Treated and non treated hair were analysed for EtG by GC/MS-NICI after solid phase extraction and heptafluorobutyric anhydride derivatization . Results: In 11 samples an average decrease was found 24% and in 5...