We present an abundance analysis of light elements in the most massive chemically peculiar (CP) stars, He-rich stars. The analysis is based on both low and high-resolution observations collected at ESO, La Silla, Chile in the optical region and includes 6 standard and 21 He-rich stars. Light element abundances display a diverse pattern from under-solar up to above-solar values. Carbon is found ...

We present a short atlas illustrating the unusual Ca ii K-line profiles in upper main sequence stars with anomalous abundances. Slopes of the profiles for 10 cool, magnetic chemically peculiar (CP) stars change abruptly at the very core, forming a deep " nib. " The nibs show the same or nearly the same radial velocity as the other atomic lines. The near wings are generally more shallow than in ...

Background: Identification of regional pattern of poisoning is essential for health care authorities for proper planning on prevention programs and optimized management of antidote stockpiles. This study was designed to evaluate one-year epidemiologic pattern of acute poisoning cases treated at a tertiary care hospital in Thrissur, India. Methods: In this retrospective cross sectional study, me...

Composite films of chemically converted graphene (CCG) and water-soluble polythiophenes (P3TOPS and P3TOPA) were prepared by a LBL method using a suspension of negatively charged CCG-P3TOPS sheets and a solution of positively charged P3TOPA. The composite films show enhanced photoresponse due to photoinduced electron transfer from the polythiophenes to CCG.

The abundance of magnesium for a sample of 19 main sequence B-type and 41 magnetic chemically peculiar stars has been derived by spectrum synthesis analysis of the Mgii 448.1 nm line under the LTE assumption. The logarithm of the average Mg abundance for the main sequence stars is log (N(Mgii)/N(Tot)) =−4.28±0.19. Comparing magnetic chemically peculiar (Cp) and main sequence stars with equal ef...

The polyacetylene falcarinol, isolated from carrots, has been shown to be protective against chemically induced colon cancer development in rats, but the mechanisms are not fully understood. In this study CaCo-2 cells were exposed to falcarinol (0.5-100 microM) and the effects on proliferation, DNA damage, and apoptosis investigated. Low-dose falcarinol exposure (0.5-10 microM) decreased expres...

PURPOSE The purpose of this study was to evaluate sutureless keratoplasty using a chemically-defined bioadhesive (CDB) made from food or medical additives. METHODS Sutureless automated lamellar therapeutic keratoplasty (ALTK) using a CDB was performed on three rabbit eyes. Allogenic lamellar graft was transplanted onto the recipient bed using either suture fixation or a sutureless technique u...