In this paper we propose an antenna geometry whose structure embodies dual stacked circular patches printed back to back on a single substrate in inverted microstrip configuration offering wideband performance suitable for mobile communication systems. The structure offers easy integration with active devices due to its inverted configuration as well as wide bandwidth without any enhancement in...

One triangle has angles measuring A, β−α and 90. The other triangle has angles measuring B, α− β, and 90. The two right angles are placed back to back with the two triangles having the same height. Using algebra and substitution, we got something that is similar to the proof but a couple of variables are switched, meaning that there is more work to do. I wonder if this method can be used though...

Clinicians use descriptive classification systems when treating patients with low back pain as an adjunct to surgical decision making. Magnetic resonance imaging (MRI) changes, including Modic changes, the presence of a high-intensity zone, and internal disk desiccation, are commonly used descriptors. The question remains whether different clinicians interpret these terms similarly. This study ...

INTRODUCTION The goal of health care with relation to women with osteoporosis is the prevention of fractures, maintenance of independence, and good quality of life. OBJECTIVE To discover how selected socio-demographic, clinical and biochemical factors affect positively or negatively the overall assessment of the quality of life, and to assess the quality of life in specific domains among wome...

OBJECTIVE Posterior accessed lumbar interbody fusion (PALIF) has a clear objective to restore disc height and spinal alignment but surgeons may occasionally face the converse situation and lose lumbar lordosis. We analyzed retrospective data for factors contributing to a postoperative flat back. METHODS A total of 105 patients who underwent PALIF for spondylolisthesis and stenosis were enroll...

Musculoskeletal injuries occur frequently in connection with physical activity. More information was sought on pretraining factors that may predispose to such injuries. Data were obtained on the age, height, weight, aerobic fitness as measured by a 3000-m run test, and health as assessed on the basis of a medical examination, of 912 male conscripts prior to an 8-week period of basic military an...

BACKGROUND Given the dearth of normal values, we conducted a cross-sectional study of North American racially diverse children to determine normal values of interincisor distance and lower spine flexion. METHODS Demographs of 307 children aged 5-17 seeking treatment emergency care were obtained along with interincisor distance measured by incisor tooth-to-tooth gap, lower spine flexion measur...

BACKGROUND It is recognised that back pain (BP) is a debilitating medical problem in the soldier community, which limits operational readiness as well as work ability. As such, identification of risk factors is a necessity for effective preventive actions, but also regarded as important from a safety perspective. The aim of this prospective cohort study was therefore to identify risk factors fo...

Asymmetries in Mismatch Negativities (MMNs) have been reported as evidence for phonological underspecification in speech perception. In this study, we investigated whether predictions from Lahiri’s Featurally Underspecified Lexicon (FUL) model hold true in a language (French) and a contrast (vowel height) not investigated before, in contrast to predictions from a model with equipollent features...

BACKGROUND Low back pain is one of the most prevalent musculoskeletal conditions in the world. Many exercise treatment options exist but few interventions have utilised free-weight resistance training. To investigate the effects of a free-weight-based resistance training intervention on pain and lumbar fat infiltration in those with chronic low back pain. METHODS Thirty participants entered t...