Reversal Movements
Mostrando 1-12 de 24 artigos, teses e dissertações.
-
1. Short-term overreaction in equity ETFs following extreme one-day returns
Resumo O presente artigo investiga a previsibilidade a curto prazo dos preços de Exchange Trade Funds (ETFs) norte-americanos de ações em reação a retornos extremos ocorridos em um dia. Também avaliamos as características transversais associadas à super-reação dos preços após movimentos extremos de preço. A literatura sobre a super-reação de c
Rev. contab. finanç.. Publicado em: 25/03/2019
-
2. Learning processes and the neural analysis of conditioning
Classical and operant conditioning principles, such as the behavioral discrepancy-derived assumption that reinforcement always selects antecedent stimulus and response relations, have been studied at the neural level, mainly by observing the strengthening of neuronal responses or synaptic connections. A review of the literature on the neural basis of behavio
Psychology & Neuroscience. Publicado em: 2010-12
-
3. Histórias de Aukê e seus gêmeos : uma releitura dos movimentos messiânicos dos Krahô e dos Ramkokamekrá
O objetivo deste trabalho e oferecer uma releitura dos movimentos messianicos dos indios Kraho e Ramkokamekra, desencadeados nas decadas de 1950 e 1960. Ambos os grupos integram, junto com outros povos, os Timbira, da familia linguistica Je, situados no cerrado dos estados do Tocantins e do Maranhao, como tambem na floresta tropical paraense, entre os afluen
Publicado em: 2009
-
4. Motor control in arm reversal movements in neurologically normal and Down Syndrome individuals / Controle motor de movimentos do braço em individuos neurologicamente normais e em portadores da Sindrome de Down : o efeito do treinamento
Individuals with Down syndrome improve the muscle activities and kinematics patterns of the single-joint movements with practice. Currently, we have showed that neurologically normal individuals increase the impulses of the shoulder muscle torque and elbow interaction torque with practice of the horizontal-planar arm movements with reversal. In this study, w
Publicado em: 2005
-
5. Multijoint movements with a reversal in health subjects and patients with Parkinson s disease / Movimentos multiarticulares reversos em sujeitos saudaveis e portadores da Doença de Parkinson
The aim of this study was to bring clarification about the control strategies adopted by the Central Nervous System during multijoint reversal movements, specially to identify motor behavior alterations in subjects with Parkinson?s disease (PD). Nine neurologically normal adult subjects and ten PD patients participated in this study. Sitting in a chair the s
Publicado em: 2005
-
6. O efeito do atraso em movimentos reversos do cotovelos : comparação entre sujeitos saudaveis e portadores da doença de Parkinson / The effect of delay on the control of reversal movements of the elbow: comparison between healthy individuals and Parkinson s disease patients
Within this study were investigated the effects of special conditions like aging and the Parkinson s disease on the control ofreversal movements ofthe elbow joint performed with a variable delay between the two components (Ml and M2) ofreversal. Another aim was to verify if the stretch-shortening cycle exerts his potentiating effects on muscular contraction
Publicado em: 2005
-
7. Changes in the length of the human biceps brachii muscle during elbow movements.
1. Needles inserted into the biceps move with the muscle as the elbow flexes or extends. Pairs of needles were used to indicate changes in length of the muscle fibres. 2. During low-frequency flexion-extension movements the biceps lengthened as the joint extended. 3. When, however, joint movements at greater than 2.2 Hz were maintained by external electrical
-
8. Chronic valproic acid intoxication: reversal by naloxone
A 76‐year‐old woman being treated with sodium valproate for bipolar depression presented with a 4 day history of acute confusion and tremulousness. She had apnoeic episodes, reduced conscious level and generalised myoclonic movements. Her plasma valproate concentration was 848 µmol/l (normal 300–600 µmol/l). Administration of naloxone 0.8 mg
BMJ Group.
-
9. Apical Control of Branch Movements in White Pine: Biological Aspects
Two-year-old branches on control trees (Pinus strobus L.) were compared through a season with branches on trees stem-girdled just above, or below, the branch whorl. All branches first sagged down for 20 days and then moved up for 40 days. Then, control branches reversed and moved back down while branches in both girdle treatments continued to move up. Moveme
-
10. Electrogenic sodium-calcium exchange in cultured embryonic chick heart cells.
1. The membrane potential (Em) of cultured chick embryonic heart cells depolarized to -36 mV after inhibition of the Na+-K+ pump by 0.1 mM-ouabain in a [K+]o of 24 mM: this was accompanied by a rise in Na+ content of approximately 65% in 3 min. Lowering [Na+]o to 27 mM then caused a fall in Na+ content, a rise in Ca2+ content and a small hyperpolarization of
-
11. Sensory adaptation during negative chemotaxis in Myxococcus xanthus.
Myxococcus xanthus exhibits many tactic movements that require the frz signal transduction system, such as colony swarming and cellular aggregation during fruiting body formation. Previously we demonstrated that the Frz proteins control the chemotactic movements of M. xanthus (W. Shi, T. Köhler, and D. R. Zusman, Mol. Microbiol. 9:601-611, 1993). However it
-
12. Mirror movements of the left arm following peripheral damage to the preferred right arm.
Cerebral damage which renders the preferred arm useless may lead patients to use their non-preferred arm for everyday tasks including writing. In these circumstances, mirror writing and other mirror movements may occur. The present study on 10 formerly right-handed patients was carried out to determine whether similar phenomena occurred when serious damage t