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showing 10 items of 12094 documents
Physical Activity in Peri-Urban Communities: Testing Intentional and Implicit Processes within an Ecological Framework.
2020
Background Given the substantive health inequalities in peri‐urban communities and the potential for physical activity to promote health in these communities, identifying modifiable physical activity determinants in this population is important. This study explored effects of the peri‐urban environment and psychological constructs on physical activity intentions and behavioural automaticity guided by an integrated theoretical framework. Methods Peri‐urban Australians (N = 271) completed self‐report measures of environmental (i.e. physical/social environment, and neighbourhood selection), motivational (i.e. autonomous motivation), and social cognition (i.e. attitudes, norms, and perceived be…
Cutting edge : using the media to enrich the teaching of oral skills
2011
Vaikka suullisen kielitaidon opetus on saanut huomiota osakseen, jää se usein muiden kielitaidon osa-alueiden varjoon. Oppikirjoissa olevat suulliset harjoitukset eivät aina motivoi oppilaita luontevaan keskusteluun, josta syystä heille on tärkeää tarjota mahdollisuuksia käydä mielekkäitä, ajatuksia herättäviä keskusteluja. Teknologian käyttö luokkahuoneessa on myös pinnalla oleva puheenaihe, jonka hyödyntämiseen ei opettajille kuitenkaan ole tarjottu tarpeeksi käytännön välineitä. Tämän oppimateriaalin pyrkimyksenä on kuroa kiinni kuilua, joka voidaan nähdä koulun ja oppilaiden jokapäiväisen elämän välillä. Tarkoituksena on nykyaikaistaa suullisen kielitaidon opettamista sekä luoda luokkah…
EFFECTS OF INDICAXANTHIN ON HUMAN MOTOR CORTICAL EXCITABILITY AND PLASTICITY
2021
The role of nutraceuticals has risen interest in the last decade for complex biological activities exerted on pathophysiological processes such as oxidative stress, inflammatory conditions and excitotoxicity. In this regard, the effects of nutraceuticals on basic functions of neuronal processes, such as cortical excitability and cortical plasticity are still to be unveiled. Translational studies performed on phytochemicals (PhC) with anti-inflammatory and antioxidant properties could trace the path for the possible modulation of neuronal excitability in humans, phenomena involved in neurodegenerative alterations and cell stress. In this context, Opuntia ficus indica is a mediterranean plant…
Neural Correlates of Age-Related Changes in Precise Grip Force Regulation: A Combined EEG-fNIRS Study
2020
Motor control is associated with suppression of oscillatory activity in alpha (8–12 Hz) and beta (12–30 Hz) ranges and elevation of oxygenated hemoglobin levels in motor-cortical areas. Aging leads to changes in oscillatory and hemodynamic brain activity and impairments in motor control. However, the relationship between age-related changes in motor control and brain activity is not yet fully understood. Therefore, this study aimed to investigate age-related and task-complexity-related changes in grip force control and the underlying oscillatory and hemodynamic activity. Sixteen younger [age (mean ± SD) = 25.4 ± 1.9, 20–30 years] and 16 older (age = 56.7 ± 4.7, 50–70 years) healthy men were…
Mixed Finite Elements for multilayered smart plates nonlocal analysis
2022
A mixed finite element formulation for the Eringen’s nonlocal analysis of smart, magneto-electro-elastic, multilayered plates is presented. Finite elements for different refined higher order plate layerwise theories are systematically developed. They ensure interface continuity and allow associating different values of the nonlocal parameter to the laminate layers. Standard 9-node and 16-node isoparametric, quadrilateral finite elements have been implemented and tested, showing the characteristics and limitations of the proposed approach.
Quasi-Homogeneous Linear Systems on with Base Points of Multiplicity multiplicity 5
2003
In this paper we consider linear systems of ℙ2 with all but one of the base points of multiplicity 5. We give an explicit way to evaluate the dimensions of such systems
Multiplicity and transverse momentum evolution of charge-dependent correlations in pp, p–Pb, and Pb–Pb collisions at the LHC
2016
We report on two-particle charge-dependent correlations in pp, p–Pb, and Pb–Pb collisions as a function of the pseudorapidity and azimuthal angle difference, η and ϕ respectively. These correlations are studied using the balance function that probes the charge creation time and the development of collectivity in the produced system. The dependence of the balance function on the event multiplicity as well as on the trigger and associated particle transverse momentum (pT) in pp, p–Pb, and Pb–Pb collisions at √sNN = 7, 5.02, and 2.76 TeV, respectively, are presented. In the low transverse momentum region, for 0.2 < pT < 2.0 GeV/c, the balance function becomes narrower in both η and ϕ direction…
Constant Power Model in Arm Rotation—A New Approach to Hill’s Equation
2014
The purpose of this study was to further develop the constant power model of a previous study and to provide the final solution of Hill’s force-velocity equation. Forearm and whole arm rotations of three different subjects were performed downwards (elbow and shoulder extension) and upwards (elbow and shoulder flexion) with maximum velocity. These arm rotations were recorded with a special camera system and the theoretically derived model of constant maximum power was fitted to the experimentally measured data. The moment of inertia of the arm sectors was calculated using immersion technique for determining accurate values of friction coefficients of elbow and whole arm rotations. The experi…
Modeling the force – velocity relationship in arm movement
2012
Modeling the force-velocity dependence of a muscle-tendon unit has been one of the most interesting objectives in the field of muscle mechanics. The so-called Hill’s equation [1,2] is widely used to describe the force-velocity relationship of muscle fibers. Hill’s equation was based on the laboratory measurements of muscle fibers and its application to the practical measurements in muscle mechanics has been problematic. Therefore, the purpose of this study was to develop a new explicit calculation method to determine the force-velocity relationship, and test its function in experimental measurements. The model was based on the motion analysis of arm movements. Experiments on forearm rotatio…