Sixty-two volatile compounds were identified in orange juice from frozen concentrated orange juice (FCOJ) processing steps using HSSPME-GC-MS in combination with GC-OSME. Twenty-four compounds were perceived by OSME in the ...

Background: A large proportion of falls in older people occur when walking. Limitations in gait adaptability might contribute to tripping; a frequently reported cause of falls in this group. Objective: To evaluate age-related ...

The purpose of this study was to evaluate the electric activity (EMG) in the temporal and amplitude aspects of the vastus medialis obliquus (VMO), vastus lateralis longus (VLL) and vastus lateralis obliquus (VLO) muscles ...

Gait variability may serve as a sensitive and clinically relevant parameter to quantify adjustments in walking and the changes with aging and neurological disease. Variability of steps preceding obstacle avoidance (approach ...

A 2-step nilpotent Lie algebra n is called nonsingular if ad(X): n --> [n,n] is onto for any X not in [n,n]. We explore nonsingular algebras in several directions, including the classification problem (isomorphism invariants), ...

Humans can perform sequential and recursive computations, as when calculating 23 × 74. However, this comes at a cost: flexible computations are slow and effortful. We argue that this competence involves serial chains of ...