purpose: to evaluate the prevalence of acute ocular chemical injuries in patients referred to labbafinejad medical center (lmc) over a period of one year. methods: all patients with chemical burns referred to lmc emergency ophthalmology service were included in the study. demographic characteristics and information regarding the burn were obtained. visual acuity assessment and slit lamp examina...

Apart from the Milky Way, the Large Magellanic Cloud (LMC) is the only other normal star-forming galaxy that was conclusively detected in high energy (> 100 MeV) γ-rays by the Energetic Gamma Ray Telescope (EGRET) on the Compton Gamma-Ray Observatory. However, the sensitivity of EGRET was sufficient only to marginally resolve the LMC. We report on measurements of the γ-ray emission from the LMC...

Hipparcos trigonometrical parallaxes of Cepheid variables are used to derive a zero-point for the PL relation. Adopting a slope from the LMC, the relation is found to be, The standard error of the zero-point is 0.10 mag. Together with metallicity corrections this corresponds to distance moduli of 18:70 0:10 for the LMC and 24:77 0:11 for M31. Some implications of these results are discussed. Es...

Sex-ratio adjustments are commonly observed in haplodiploid species. However, the underlying proximate mechanisms remain elusive. We investigated these mechanisms in Tetranychus urticae, a haplodiploid spider mite known to adjust sex ratio in response to the level of local mate competition (LMC). In this species, egg size determines fertilization probability, with larger eggs being more likely ...

Chronic hypoxia results in hypoxic pulmonary hypertension characterized by fibrotization and muscularization of the walls of peripheral pulmonary arteries. This vessel remodeling is accompanied by an increase in the amount of lung mast cells (LMC) and the presence of small collagen cleavage products in the vessel walls. We hypothesize that hypoxia activates LMC, which release matrix metalloprot...

We present relation of the mean I-band brightness of red clump stars on metallicity. Red clump stars were proposed to be a very attractive standard candle for distance determination. The calibration is based on 284 nearby red giant stars whose high-quality spectra made it possible to determine accurate individual metal abundances. High-quality parallaxes (sigmapi&solm0;pi<10%) and photometry of...

Following an approach developed by Paczyński & Stanek, we derive a distance to the Large Magellanic Cloud (LMC) by comparing red clump stars from the Hipparcos catalog with the red clump stars observed in two fields in the LMC that were selected from the ongoing photometric survey of the Magellanic Clouds to lie in low extinction regions. The use of red clump stars allows a single step determin...

Sex ratio theory allows unparalleled opportunities for testing how well animal behavior can be predicted by evolutionary theory. For example, Hamilton's theory of local mate competition (LMC) is well understood and can explain variation in sex allocation across numerous species. This allows more specific predictions to be developed and tested. Here we extend LMC theory to a situation that will ...

ABSTRACT We study the local dark matter distribution in two models for Milky Way (MW)-Large Magellanic Cloud (LMC) interaction. The effect of LMC on is dependent evolution MW-LMC system, such that a static model insufficient to accurately velocity solar neighbourhood. An evolved boosts particle velocities by nearly 50 per cent, median value ?750 km s?1. MW particles also experience boost caused...