نتایج جستجو برای: ultra
تعداد نتایج: 58116 فیلتر نتایج به سال:
It was assumed that women would be able to outperform men in ultra-marathon running. The present study investigated the sex difference in performance for all ultra-triathlon distances from the Ironman distance (i.e. 3.8 km swimming, 180 km cycling and 42 km running) in the 'Ironman Hawaii' to the Double Deca Iron ultra-triathlon distance (i.e. 76 km swimming, 3,600 km cycling and 840 km running...
This paper describes the program transformation system Ultra. The intended use of Ultra is to assist programmers in the formal derivation of correct and efficient programs from high-level descriptive or operational specifications. Ultra supports equational reasoning about functional programs using defining equations, algebraic laws of underlying data structures, and transformation rules. The sy...
A novel method for optical generation of ultra-wideband signals with a reconfigurable spectral notch-band is proposed. In the proposed system, ultra-wideband signals are generated in the optical domain and an optical tunable delay line is deployed to introduce a notch-band to the spectral profile of the generated ultra-wideband signals, which can effectively avoid the signal interference betwee...
& Pieve (1974). They arbitrarily defined rapid cycling as four or more mood episodes per year. Rapid cycling in relation to bipolar affective disorder has been defined by the DSM-IV criteria (American Psychiatric Association, 1994)(Box 1). Some patients show cycling frequencies in the order of weeks to days, a phenomenon known as ultra-rapid cycling. Cycling of discrete mood phases of less than...
It was assumed that women would be able to outperform men in ultra-marathon running. The present study investigated the sex difference in performance for all ultra-triathlon distances from the Ironman distance (i.e. 3.8 km swimming, 180 km cycling and 42 km running) in the ’Ironman Hawaii’ to the Double Deca Iron ultra-triathlon distance (i.e. 76 km swimming, 3,600 km cycling and 840 km running...
Contrast agents are diagnostic tools that often complement magnetic resonance imaging. At ultra-high field strengths (≥7 T), magnetic resonance imaging is capable of generating desirable high signal-to-noise ratios, but clinically available contrast agents are less effective at ultra-high field strengths relative to lower fields. This gap in effectiveness demands the development of contrast age...
The austenitic stainless steel (SS) has been used as a material for building ultra high vacuum (UHV) chamber. Recently significant efforts have been concerned a comparing the standard cleaned for ultra high vacuum, passivity stainless. In this work Austenitic nanocomposites were synthesize by sol- gel method. The morphologies and topographies of the samples h...
PURPOSE To present an overview on ultra-wide-field imaging in diabetic retinopathy. METHODS A comprehensive search of the pubmed database was performed using the search terms of "ultra-wide-field imaging", "ultra-wide-field fluorescein angiography" and "diabetic retinopathy". The relevant original articles were reviewed. RESULTS New advances in ultra-wide-field imaging allow for precise mea...
OBJECTIVE In this study, an attempt was made to determine the effect of smoking on ultra-high-frequency auditory sensitivity. The study also attempted to determine the relationship between the nature of smoking and ultra-high-frequency otoacoustic emissions (OAEs) and thresholds. MATERIALS AND METHODS The study sample included 25 smokers and 25 non-smokers. A detailed history regarding their ...
Knowledge of axillary lymph node Status is essential in treatment planning and in prognostic evaluation of breast cancer.Materials and Methods: Preoperative high resolution Sonography of axilla, were performed on 100 patients with breast carcinoma (T1-T2) clinical, before axillary lymph node dissection and pathologic evaluation.Results: The Sensitivity of ultra Sonography in detection of axilla...
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