Search results for " activity"

2017

Prismatic adaption (PA) has been proposed as a tool to induce neural plasticity and is used to help neglect rehabilitation. It leads to a recalibration of visuomotor coordination during pointing as well as to aftereffects on a number of sensorimotor and attention tasks, but whether these effects originate at a motor or attentional level remains a matter of debate. Our aim was to further characterize PA aftereffects by using an approach that allows distinguishing between effects on attentional and motor processes. We recorded EEG in healthy human participants (9 females and 7 males) while performing a new double step, anticipatory attention/motor preparation paradigm before and after adaptat…

Evoked local field potentials can explain temporal variation in blood oxygenation level-dependent responses in rat somatosensory cortex

2010

The aim of this study was to explain the temporal variations between subjects in the blood oxygenation level-dependent (BOLD) response. Somatosensory responses were elicited with the electrical forepaw stimulus at a frequency of 10 Hz in urethane-anesthetized rats, and functional magnetic resonance imaging (fMRI) with BOLD contrast and local field potential (LFP) measurements were performed simultaneously. BOLD fMRI activation was evaluated by two different models, one based on the stimulus paradigm (the block model) and the other on the simultaneously measured evoked LFP responses. In the initial analysis, the LFP model captured the BOLD activation in the primary somatosensory cortex in al…

Antioxidant activity of Sicilian Pistachio (Pistacia vera, L. var. Bronte) nut extracts and its bioactive components

2007

Pistacia vera L. is the only species of Pistacia genus producing edible nuts. This paper investigates the antioxidant potential of a Sicilian variety of pistachio nut by chemical as well as biological assays and measured antioxidant vitamins and a number of antioxidant polyphenols in either the hydrophilic and/or the lipophilic nut extract. In accordance with the majority of foods, the total antioxidant activity, measured as a TAA test, was much higher (50-fold) in the hydrophilic than in the lipophilic extract. Substantial amounts of total phenols were measured. The hydrophilic extract inhibited dose- dependently both the metal-dependent and -independent lipid oxidation of bovine liver mic…

Psychometric properties of the MOBITEC-GP mobile application for real-life mobility assessment in older adults

2022

Aim of this study was to test the reliability and validity of the life-space measures and walking speed delivered by the MOBITEC-GP app. Participants underwent several supervised walking speed assessments as well as a 1-week life-space assessment during two assessment sessions 9 days apart. Fifty-seven older adults (47.4% male, mean age= 75.3 (±5.9) years) were included in the study. The MOBITEC-GP app showed moderate to excellent test-retest reliability (ICCs between 0.584 and 0.920) and validity (ICCs between 0.468 and 0.950) of walking speed measurements of 50 meters and above and of most 1-week life-space parameters, including life-space area, time spent out-of-home, and action range. T…

Lipas data 10/2021

2021

Tämä aineisto sisältää kaikki Lipas-tietokannan liikuntapaikat ja aineistotiedot 20.10.2021. Data on luokiteltu ja jokaiselle liikuntapaikalle on oma Lipas-ID. Data on tarjolla Esri Shapefile -muodossa (pisteet, reitit ja alueet). This data includes all sport facilities in Lipas database in 20.10.2021 and basic attribute information of the places. The data is classified and each sport facility has its own Lipas id. The data is provided as Esri Shapefiles (points, routes and areas) in Finnish, Swedish and English.

Lipas-aineistot

2021

Lipas on valtakunnallinen paikkatietokanta liikuntapaikoista, ulkoilureiteistä ja virkistysalueista. Lipas-tietokantaan kerätään tiedot Suomen julkisista, erityisesti kuntien omistamista liikuntapaikoista. Myös yksityisten yritysten ja yhdistysten hallinnoimia paikkoja löytyy tietokannasta. Tiedon tuottajina toimivat kuntien liikuntatoimen asiantuntijat yhteistyössä kunnan muiden toimialojen kanssa sekä virkistysalueyhdistykset ja lajiliitot. Lisäksi Lipas-projektissa tehdään aineiston kattavuuden ja laadun seurantaa ja tietojen täydennystä. Hankkeesta löytyy lisätietoa lipas.fi ja lipasinfo.fi. Hankkeesta julkaistaan säännöllisin väliajoin otoksia. Aineisto on ladattavissa myös hankkeen om…

Volcanic activity and gas emissions along the South Sandwich Arc

2020

AbstractThe South Sandwich Volcanic Arc is one of the most remote and enigmatic arcs on Earth. Sporadic observations from rare cloud-free satellite images—and even rarer in situ reports—provide glimpses into a dynamic arc system characterised by persistent gas emissions and frequent eruptive activity. Our understanding of the state of volcanic activity along this arc is incomplete compared to arcs globally. To fill this gap, we present here detailed geological and volcanological observations made during an expedition to the South Sandwich Islands in January 2020. We report the first in situ measurements of gas chemistry, emission rate and carbon isotope composition from along the arc. We sh…

Frequency Based Detection and Monitoring of Small Scale Explosive Activity by Comparing Satellite and Ground Based Infrared Observations at Stromboli…

2014

Abstract Thermal activity is a common precursor to explosive volcanic activity. The ability to use these thermal precursors to monitor the volcano and obtain early warning about upcoming activity is beneficial for both human safety and infrastructure security. By using a very reliably active volcano, Stromboli Volcano in Italy, a method has been developed and tested to look at changes in the frequency of small scale explosive activity and how this activity changes prior to larger, ash producing explosive events. Thermal camera footage was used to designate parameters for typical explosions at Stromboli (size of spatter field, cooling rate, frequency of explosions) and this information was a…

Sensory performance of blind Mexican cave fish after destruction of the canal neuromasts.

1990

Radiative heat power at Stromboli volcano during 2000–2011: Twelve years of MODIS observations

2012

Abstract Twelve years of night-time MODIS (Moderate Resolution Imaging Spectroradiometer) observations, has been analysed to detect and quantify the radiative heat power emitted by Stromboli volcano (from March 2000 to September 2011). Using an accurate background subtraction of the MODIS signal at 4 μm, we were able to discriminate two main regimes of thermal radiation, related to different levels of volcanic activity. Effusive eruptions (occurred on December 28, 2002 and February 27, 2007) radiated at an average of ~ 186 MW with a frequency of alert detection of 50–95%. Conversely, during the typical strombolian activity, an average of ~ 9 MW is radiated, with a frequency of alert detecti…