purpose: regarding the high prevalence of low back pain in various communities and the need to determine an appropriate treatment plan for these patients, examining their functional limitation and disability level is of utmost importance. in this regard, one of the important indicators is lumbar range of motion. measurement of the range of motion is a common and appropriate method for determini...

A duality theory for digital nets, i.e., for finite points sets with strong uniformity properties, was introduced by Niederreiter and Pirsic. This duality theory is based on the concept of the dual space M of a digital net. In this paper we extend the duality theory from (finite) digital nets to (infinite) digital sequences. The analogue of the dual space is now a chain of dual spaces (Mm)m≥1 f...

Palm boards are often used as a nonverbal measure in human slant perception studies. It was recently found that palm boards are biased and relatively insensitive measures, and that an unrestricted hand gesture provides a more sensitive response (Durgin, Hajnal, Li, Tonge, & Stigliani, Acta Psychologica, 134, 182-197, 2010a). In this article, we describe an original design for a portable lightwe...

[Purpose] Glenohumeral posterior capsule tightness possibly relates to posterior capsule thickness (PCT). The purpose of the current study was to analyze the relationships between PCT and glenohumeral range of motion (ROM) in horizontal adduction (HAdd) and internal rotation (IR). [Subjects and Methods] This study recruited 39 healthy collegiate baseball players. We measured PCT by using ultras...

This paper presents a novel digital circuit, based on the analog Dual Mixer Time Difference circuit, developed by David W. Allan, designed to characterise oscillators frequency stability. The proposed digital circuit, named Digital Dual Mixer Time Difference (DDMTD), is capable of measuring time differences between two digital clock signals with very fine resolution (subpicosecond) using a rela...

To meet the demand of high-accuracy, long-range and portable use in large-scale metrology for pose measurement, this paper develops a 6-degree-of-freedom (6-DOF) measurement system based on total station by utilizing its advantages of long range and relative high accuracy. The cooperative target sensor, which is mainly composed of a pinhole prism, an industrial lens, a camera and a biaxial incl...

Background Axial Spondyloarthritis (axSpA) is divided into two sub-types as radiographic axSpA which commonly known ankylosing spondylitis, and non-radiographic defines no structural damage in sacroiliac joints. The systemic, inflammatory nature of axSpA, chronic pain, cytokines, changes the bone ligaments spine may affect posture functional level. Objectives aim was to compare levels differenc...

Palm, P. 2017. Methods to assess physical load at work. With a focus on the neck and upper extremities. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine 1388. 52 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-513-0118-1. To prevent work-related musculoskeletal disorders (MSDs), useful, reliable and valid methods for assessing physical workload and ...