OBJECTIVE To evaluate the psychometric properties of the 12-item Medical Outcomes Study (MOS) Short-Form Health Status Survey (SF-12) (Hebrew version) in a large primary care patient sample in Israel. SUBJECTS The sample comprised 3631 adult primary care patients who were screened for depression in a longitudinal design. MEASURES SF-12 yielding two scores: the Physical Component Summary (PC...

It is unknown how changes in physical activity may affect changes in quality of life (QoL) outcomes during lifestyle interventions for severely obese adults. The purpose of this study was to examine associations in the patterns of change between objectively assessed physical activity as the independent variable and physical, mental, and obesity-specific QoL and life satisfaction as the dependen...

abstract background: infertility predisposes the couples to mental and psychological problems such as anxiety, depression, anger, and partner abuse. this study aimed to investigate the association between infertility factors and the non-physical abuse between infertile spouses. materials and methods: this is a descriptive cross-sectional study conducted on 262 infertile couples (131 female and ...

We discuss the Stückelberg-Peterman extended renormalization group equations in perturbative QCD, which express the invariance of physical ob-servables under renormalization-scale and scheme-parameter transformations. We introduce a universal coupling function that covers all possible choices of scale and scheme. Any perturbative series in QCD is shown to be equivalent to a particular point in ...

A first person video delivers what the camera wearer experiences while physically interacting with surroundings. In this paper, we focus on a problem of Force from Motion—decoding control force and torque that drive the activity—from a first person video. We use two dominant physical factors encoded in the video to understand the wearer’s activity: physical coordinate system and active force co...

In the past decades linear scale-space theory was derived on the basis of various axiomatics. In this paper we revisit these axioms and show that they merely coincide with the following physical principles, namely that the image domain is a Galilean space, that the total energy exchange between a region and its surrounding is preserved under linear ltering and that the physical observables shou...

Road extraction is an active area of research. Because roads are elongated objects they can be described symbolically by means of lines. This paper shows, theoretically as well as in practice, why and under which circumstances lines extracted from an image are an abstract representation of roads. Especially the importance of scale is emphasized and the connection between multiple scales and mul...

This paper presents a method for detecting, describing, and matching keypoints in combined range-intensity data. We extend a 2D image-based detection and description framework to 3D using an image back-projected onto a range scan. A key feature of the framework is a physical scale space for detecting keypoints, which eliminates errors in scale during both detection and matching. We develop smoo...

We derive the finite-size dependence of the clustering coefficient of scale-free random graphs generated by the configuration model with degree distribution exponent 2 < γ < 3. Degree heterogeneity increases the presence of triangles in the network up to levels that compare to those found in many real networks even for extremely large nets. We also find that for values of γ ≈ 2, clustering is v...