OBJECTIVES In radiographic OA (ROA) of the knee, how does radiographic severity and pattern of compartmental involvement influence symptoms? METHODS Population-based study of 819 adults aged > or =50 yrs with knee pain. The severity of knee pain and function were measured using the Western Ontario and McMaster Universities scale. Three radiographic views of the knees were obtained. RESULTS ...

Eighty-five volunteer drivers, 65-85 years old, without cognitive impairments impacting on their driving were examined, in order to investigate driving errors characteristic for older drivers. In addition, any relationships between cognitive off-road and on-road tests results, the latter being the gold standard, were identified. Performance measurements included Trail Making Test (TMT), Nordic ...

Return on assets (ROA) from household enterprise is crucial for understanding the well-being and productivity of households in developing economies. Yet the definition and measurement of household enterprise ROA remain inconsistent or unclear. We illustrate potential measurement problems with examples from various actual surveys. We then take advantage of a detailed integrated household survey ...

Detailed analysis of Raman and Raman optical activity (ROA) of L-alanine zwitterion (ALAZW) revealed that shapes of the spectral bands are to a large extent determined by the rotation of the NH(3)(+), CO(2)(-), and CH(3) groups. Aqueous solution ALAZW spectra were measured down to 100 cm(-1) and compared to complex simulations based on ab initio (B3LYP/CPCM/6-31++G**) computations of molecular ...

Firms central in the interlocking boardroom network earn superior risk-adjusted stock returns. Initiating a long position in the most central firms and a short position in the least central firms earns an average risk-adjusted return of 4.68% per year. Firms with central boards also experience higher future growth in return-on-assets (ROA) with analysts failing to fully reflect this information...

As real options analysis (ROA) is being applied to increasingly complex information technology (IT) investment problems, a concern arises over the use heuristic ROA models that are simpler to apply but can produce overvaluations. A good example is the application of a heuristic nested variation of the Black–Scholes (BS) model to the evaluation of interrelated IT investments as nested options. T...

Besides its applications in bioenergy and biosynthesis, β-d-xylose is a very simple monosaccharide that exhibits relatively high rigidity. As such, it provides the best basis to study the impact of different solvation shell radii on the computation of its Raman optical activity (ROA) spectrum. Indeed, this chiroptical spectroscopic technique provides exquisite sensitivity to stereochemistry, an...

This document defines the semantics of a Route Origin Authorization (ROA) in terms of the context of an application of the Resource Public Key Infrastructure to validate the origination of routes advertised in the Border Gateway Protocol.

This document defines the semantics of a Route Origin Authorization (ROA) in terms of the context of an application of the Resource Public Key Infrastructure to validate the origination of routes advertised in the Border Gateway Protocol.