نتایج جستجو برای: very poor
تعداد نتایج: 879884 فیلتر نتایج به سال:
Abstract We present homogeneous abundance analysis of over 20 elements for 385 very metal-poor (VMP) stars based on the LAMOST survey and follow-up observations with Subaru Telescope. It is largest high-resolution VMP sample (including 363 new objects) studied by a single program, first attempt to accurately determine evolutionary stages such large Gaia parallaxes. The covers wide metallicity r...
Background and Aim: Clinical Grand Rounds method is a common clinical training in most of university hospitals. Its purpose is to provide an opportunity for students to link their practical realities to theoretical ones. The study purpose was to compare the views of trainees, interns, residents, and teachers about grand rounds method at Iran University Medical Sciences in Iran. Methods: This...
fractures through the sacroiliac joint are very challenging to treat, technically difficult to reduce through closed methods on account of the multiaxial displacement of fractures fragments, frequently occur in very unwell patients, and have poor outcomes if malreduction is present. we describe a technique utilising the lateral window and a short buttress plate to reduce and stabilize the fragm...
We present a high spectral resolution survey of the most metal-poor damped Lyα absorption systems (DLAs) aimed at probing the nature and nucleosynthesis of the earliest generations of stars. Our survey comprises 22 systems with iron abundance less than 1/100 solar; observations of seven of these are reported here for the first time. Together with recent measures of the abundances of C and O in ...
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