Buscar
Mostrando ítems 1-10 de 9550
Age-related changes in gait adaptability in response to unpredictable obstacles and stepping targets
(2016-05-01)
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 ...
Ranjit Kumar. Research methodology: a step-by-step guide for beginnersRanjit Kumar. Research methodology: a step-by-step guide for beginners
(Instituto de Investigaciones Bibliotecológicas y de la Información, 2009)
Volatile and odoriferous compounds changes during frozen concentrated orange juice processing
(2015-11-01)
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 ...
The variability of the steps preceding obstacle avoidance (approach phase) is dependent on the height of the obstacle in people with Parkinson’s disease
(2017-09-01)
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 ...
On nonsingular two-step nilpotent Lie algebras
(International Press Boston, 2014-12)
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), ...
From a single decision to a multi-step algorithm
(Current Biology, 2012-05)
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 ...
Plasma electrolytic oxidation up to four-steps performed on niobium and Nb-Ti alloys
(2022-05-25)
Plasma electrolytic oxidation (PEO) of up to four steps were performed on Niobium (Nb), and binary Niobium-Titanium alloys (Nbx-Ti, x = 50%, 90 wt.%), and the resulting oxidized surfaces were compared to their respective ...
Sufficients conditions for analysis of extrema in the step-response of the linear control systems
(Institute of Electrical and Electronics Engineers (IEEE), 2011-12-01)
This note deals whith the problem of extrema which may occur in the step-response of a stable linear system with real zeros and poles. Some simple sufficients conditions and necessary conditions are presented for analyses ...
Steps-to-War: an overview of its research program
(Inst Brasileiro Relacoes Int, 2021-01-01)
The aim of this paper is to present, via a literature review, the Steps-to-War model, its research program and some of the results gathered over the years to the Brazilian International Relations community. This is because, ...