Results 81 to 90 of about 431 (99)

Parkinson's disease and posture: evaluation with biometrical holistic of human body device: a pilot study. [PDF]

Front Surg
Ronconi G, Ferrara PE, Codazza S, Gatto DM, La Cagnina F, Coraci D, Panunzio M, Ariani M, Ferriero G.   +8 more
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New insights on femoral head trabecular bone directionality in elderly humans using a micro-CT-based analysis. [PDF]

Sci Rep
Hadad A, Bar-Ziv Y, May H.
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Tracing Ramsden's ‘Plumbline Level’

Journal for the History of Astronomy, 2011
Doubts on the Accuracy of the English QuadrantsIn the eighteenth century the practice of astronomy in Europe was consolidated through the establishment of several institutional observatories' and the production of a suite of designs for observatory instruments2 such as mural quadrants (Figure 1), transit instruments, zenith and equatorial sectors - all
Ileana Chinnici, Donatella Randazzo
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A Plumbline Constraint for the Rational Function Lens Distortion Model

Procedings of the British Machine Vision Conference 2005, 2005
The recently introduced Rational Function (RF) model permits a linear solution of epipolar geometry and lens distortion from image correspondences for a very general class of lenses. In this paper we show that the model also permits a very elegant form of the plumbline constraint which allows uncalibrated correction of lens distortion from a single ...
D. Claus, A. W. Fitzgibbon
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Goal-Centric Traceability: Using Virtual Plumblines to Maintain Critical Systemic Qualities

IEEE Transactions on Software Engineering, 2008
Successful software development involves the elicitation, implementation, and management of critical systemic requirements related to qualities such as security, usability, and performance. Unfortunately, even when such qualities are carefully incorporated into the initial design and implemented code, there are no guarantees that they will be ...
J. Cleland-Huang, W. Marrero, B. Berenbach   +2 more
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Can C7 Plumbline and Gravity Line Predict Health Related Quality of Life in Adult Scoliosis?

Spine, 2009
This study prospectively evaluated the health related quality of life (HRQOL) of 73 adults presenting with scoliosis at a single institution, as related to their spinal (C7 plumbline) and global (gravity line) balance.To assess the influence of sagittal and coronal balance on HRQOL in adult scoliosis.Many surgeons believe that achieving adequate spinal
Jean-Marc, Mac-Thiong, Ensor E, Transfeldt, Amir A, Mehbod, Joseph H, Perra, Francis, Denis, Timothy A, Garvey, John E, Lonstein, Chunhui, Wu, Christopher W, Dorman, Robert B, Winter   +9 more
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Discussion of Mean Gravity Along the Plumbline

Studia Geophysica et Geodaetica, 2004
According to the definition of the orthometric height, the mean value of gravity along the plumbline between the Earth's surface and the geoid is defined in an integral sense. In Helmert's (1890) definition of the orthometric height, a linear change of the gravity with depth is assumed. The mean gravity is determined so that the observed gravity at the
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On the gradient of curvature of the plumblines of the Earth’s normal gravity field and its isocurvature lines

Studia Geophysica et Geodaetica, 2011
This paper presents an approach to determine the gradient of curvature of the normal plumblines at a point P above the ellipsoid and introduces a new geometrical object which is the isocurvature line. The assumed facts are the coordinates of the point P and the formula for the normal gravity potential U.
Gerassimos Manoussakis, Demitris Delikaraoglou   +1 more
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A Comparison of Methods for Measuring Trunk List

Spine, 1996
Trunk list was measured using three different techniques to compare accuracy, precision, and ease of use.To obtain a reproducible technique for further studies of the nature, cause, and clinical relevance of trunk list.Gravity-induced trunk list is a clinical sign that is frequently observed in patients with low back pain and has been associated with ...
I P, McLean, M G, Gillan, J C, Ross, R M, Aspden, R W, Porter   +4 more
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An Alternative Approach for the Determination of Orthometric Heights Using a Circular-Arc Approximation for the Plumbline

2008
The orthometric height is the distance, measured positive outwards along the plumbline, from the geoid to a point of interest usually situated on the Earth’s topographic surface. According to its “classical definition”, it can be computed from the geopotential number of a point, using the mean value of the Earth’s gravity acceleration along the ...
G Manoussakis, D Delikaraoglou, G Ferentinos   +2 more
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