Results 51 to 60 of about 19,851 (292)
Objective We aimed to validate the Pediatric Arthritis Ultrasound Scoring System (PAUSS) for upper extremity joints in children with juvenile idiopathic arthritis (JIA). Methods Children with JIA were evaluated for elbow, wrist, or finger arthritis by clinical examination (CE) and musculoskeletal ultrasound (MSUS) with images scored according to the ...
Patricia Vega‐Fernandez +12 more
wiley +1 more source
A first determination of the position of the `Doppler' peak
Cosmological theories for the origin and evolution of structure in the Universe are highly predictive of the form of the angular power spectrum of cosmic microwave background fluctuations. We present new results from a comprehensive study of CMB observations which provide the first measurements of the power spectrum all the way down to angular scales ...
Hancock, Stephen, Rocha, Graca
openaire +2 more sources
Direct Position Determination of Coherent Pulse Trains Based on Doppler and Doppler Rate [PDF]
Direct Position Determination (DPD) of coherent pulse trains using a single moving sensor is considered in this paper. Note that when a large observation window and relative maneuvering course between emitter and receiver both exist, the localization accuracy of Doppler frequency shift only based DPD will decline because of the noticeable Doppler ...
Guizhou Wu +3 more
openaire +1 more source
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos +2 more
wiley +1 more source
Leveraging Multi-LEO Satellite Signals for Opportunistic Positioning
The study of navigation solutions other than GNSS is becoming increasingly important due to growing concerns about the vulnerability of GNSS to interference. The use of existing LEO satellite signals is a promising option in this respect.
Nabil Jardak, Ronan Adam, Quentin Jault
doaj +1 more source
Study Design A Retrospective Cohort Study. Objective To introduce a new Doppler sonography-assisted pedicle screw fixation technique that enables vertebral artery (VA) monitoring during surgery and compares the accuracies of Doppler sonography-assisted ...
Sang Hyo Lee MD +6 more
doaj +1 more source
Distinct Systemic Sclerosis Phenotypes Related to Ethnicity: An Opportunity to Personalize Care?
Objective The objective is to describe and compare demographic, clinical, and serological characteristics of patients with systemic sclerosis (SSc) according to ethnic background. Methods Participants enrolled in the Canadian Scleroderma Research Group cohort who self‐identified to a single ethnicity group were included.
Danick Goulet +11 more
wiley +1 more source
Doppler Processing for Satellite Navigation
Doppler processing was the principle of operation for the first satellite navigation system, Transit, that became operational in 1964 and was phased-out in 1996 [1]. Its successor, the Global Positioning System (GPS) uses the principle of one-way ranging,
Van Graas, Frank
core +1 more source
An automated multi-point primary vibration calibration system
In this study, we developed an automated, multi-point primary vibration calibration system using a two-axis positioning stage and a laser Doppler vibrometer. The proposed system offers low-cost, convenient, and automated multi-point vibration calibration,
Wataru Kokuyama +2 more
doaj +1 more source
Symposium on satellite Doppler positioning
The Second International Geodetic Symposium on Satellite Doppler Positioning was held in Austin, Texas, from January 22 to January 26,1979. The symposium was sponsored by the Defense Mapping Agency and the National Ocean Survey, hosted by the Applied Research Laboratories of the University of Texas at Austin, and sanctioned by the International ...
openaire +1 more source

