نتایج جستجو برای: dose length product

تعداد نتایج: 876231  

Journal: :Circulation 1986
J C LaRosa L E Chambless M H Criqui I D Frantz C J Glueck G Heiss J A Morrison

This article describes the assignment of dyslipoproteinemia (DLP) in several free-living North American populations and presents mean lipid and lipoprotein levels for each type. Dyslipoproteinemic phenotypes were assigned by a modified version of the National Institutes of Health (Fredrickson) phenotyping system. Criteria for assigning phenotypes included age- and sex-specific 5th and 95th perc...

استوری, کریستوفر, حاجیا, مسعود,

Two chlamydial species C. pneumonia and C. psittaci have important role in respiratory infections. In this survey a primer pair was designed in order to differentiate these two species in  one step by single PCR. This differentiation was obtained by having specific product length for each one. All experiments confirmed that the product length in these two species were distinguishable.&nb...

2010
Ji Li Song Zhang

This paper presents a technique that reaches 3-D shape measurement speed beyond the digital-light-processing (DLP) projector’s projection speed. For this technique, a “solid-state” binary structured pattern is generated with each micromirror pixel always being at one status (ON or OFF). By this means, any time segment of projection can represent the whole signal, thus the exposure time can be s...

2016
Lukas P. Beyer Benedikt Pregler Christoph Nießen Andreas Schicho Michael Haimerl Ernst Michael Jung Christian Stroszczynski Philipp Wiggermann

Purpose. The purpose of this study was to compare CT-navigated stereotactic IRE (SIRE) needle placement to non-navigated conventional IRE (CIRE) for percutaneous ablation of liver malignancies. Materials and Methods. A prospective trial including a total of 20 patients was conducted with 10 patients in each arm of the study. IRE procedures were guided using either CT fluoroscopy (CIRE) or a ste...

2014
Sang Ho Park Kyung Do Kim Young Tae Moon Soon Chul Myung Tae Hyoung Kim In Ho Chang Jong Kyou Kwon

PURPOSE To evaluate the efficacy of low-dose computed tomography (LDCT) for detecting urinary stones with the use of an iterative reconstruction technique for reducing radiation dose and image noise. MATERIALS AND METHODS A total of 101 stones from 69 patients who underwent both conventional nonenhanced computed tomography (CCT) and LDCT were analyzed. Interpretations were made of the two sca...

2017
Hong Zhang Yanhe Ma Jun Lyu Yapeng Yang Wei Yuan Zhenchun Song

BACKGROUND The aim of this study was to evaluate the image quality and radiation dose of CT coronary angiography (CTCA) with low kV, low concentration contrast agent, and iterative reconstruction. MATERIAL AND METHODS Ninety cases were randomly divided into 3 groups according to contrast agent concentration: group A 270 mg/ml (100 kV), group B 350 mg/ml (120 kV), and group C 370 mg/ml (120 kV),...

Journal: :Mechanisms of Development 1996
David Bertwistle Maggie E. Walmsley E.Mary Read John A. Pizzey Roger K. Patient

The transcription factors, GATA-1, -2 and -3 play essential roles in the differentiation of haematopoietic cells. To study the process of blood formation during vertebrate development we have used the expression of these GATA factors to locate haematopoietic cells in Xenopus embryos and to act as sensors for the effects of all-trans retinoic acid (RA), a signalling molecule which influences bot...

Journal: :AJNR. American journal of neuroradiology 2013
G A Vorona G Zuccoli T Sutcavage B L Clayton R C Ceschin A Panigrahy

BACKGROUND AND PURPOSE Iterative reconstruction techniques facilitate CT dose reduction; though to our knowledge, no group has explored using iterative reconstruction with pediatric head CT. Our purpose was to perform a feasibility study to assess the use of ASIR in a small group of pediatric patients undergoing head CT. MATERIALS AND METHODS An Alderson-Rando head phantom was scanned at decr...

2006
Ming-Deh Huang Wayne Raskind

This is the third in a series of papers in which we develop a unified method for treating the discrete logarithm problem (DLP) in various contexts. In [HR1], we described a formalism using global duality for a unified approach to the DLP for the multiplicative group and for elliptic curves over finite fields. The main tool to be employed is what we call signature calculus. In [HR2], we used sig...

2009
Ivana Ilić Spyros S. Magliveras

The intractability of the traditional discrete logarithm problem (DLP) forms the basis for the design of numerous cryptographic primitives. In [2] M. Sramka et al. generalize the DLP to arbitrary finite groups. One of the reasons mentioned for this generalization is P. Shor’s quantum algorithm [4] which solves efficiently the traditional DLP. The DLP for a nonabelian group is based on a particu...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید