A New Look at the Primary Distance Indicators
نویسنده
چکیده
We examine the overall consistency of the primary distance indicators and ways for a satisfactory resolution of the Cepheid-RR Lyrae zero point discrepancy.
منابع مشابه
Psychiatric Social Work and Effective Strategies to Reduce the Care Gap in Mental Health Services A Comprehensive, Cross-Sectoral, and Community-Oriented Look
Introduction: Despite the significant prevalence of psychiatric disorders and the high global burden of these, a large proportion of people with severe psychiatric disorders do not receive the services they need, which is called the care gap, and one of the goals of world health organizations is to reduce this gap. The purpose of this study is to review the most important global and regional st...
متن کاملREVIEW SECTION
A Look at Contemporary Persian Poetry, Currents in Persian Poetry in 20th Century This book is a historical survey of literature though the writer has tried to distance himself from ancient approaches and to apply a modern look of analysis, critique and stylistics. In the first chapter the methodology is discussed followed by the second chapter which talks of text and metatext and the relation...
متن کاملConsidering Pilot Protection in the Optimal Coordination of Distance and Directional Overcurrent Relays
The aim of the relay coordination is that protection systems detect and isolate the faulted part as fast and selective as possible. On the other hand, in order to reduce the fault clearing time, distance protection relays are usually equipped with pilot protection schemes. Such schemes can be considered in the distance and directional overcurrent relays (D&DOCRs) coordination to achieve faster ...
متن کاملEndoscopic Middle Ear and Mastoid Surgery for Cholesteatoma
Introduction: To reduce incidence of residual cholesteatoma following ear surgery; and to reduce the need for second look “open” mastoidectomy using endoscopic mastoidotomy. Ten-year retrospective chart review of 249 primary cholesteatoma cases (1994-2004) with a minimum follow-up of two years. The first objective was to evaluate the effectiveness of otoendoscopy in reducing the incidence of “...
متن کاملCaffeine effect on adenosine deaminase catalysis: A new look at the effect of caffeine on adenosine deaminase activity
The effect of physiological concentrations of caffeine (purified from Persian tea) on adenosine deaminase (ADA) activity at physiological and pathological concentrations of adenosine (as substrate) in 50 mM Tris-HCl buffer (pH 7.3) at 37°C was investigated, using UV-VIS spectroscopy. ADA exhibited a bi-phasic activity behavior and both phases showed positive cooperativities indicating adenosine...
متن کامل