127 research outputs found
Arbejdshukommelsens indvirkning på motorisk læring
No full textEnhver idrætsunderviser kan forevise og beskrive et volleyballfingerslag, og mange kan begrunde, hvorfor bevægelsen er, som den er. Men kan lige så mange undervisere forklare, hvordan arbejdshukommelsen bidrager i indlæringsfasen af den motoriske færdighed?
Underviserens evner bygger ofte på erfaringen - hvilket er godt. Udfordringen er, at det tager lang tid at oparbejde erfaringen. Måske kan man tage nogle kvantespring på ”forbedringsstigen” ved at have lidt mere teoretisk-praktisk viden om nogle af de bagvedliggende mekanismer.
Denne artikel vil derfor fokusere på arbejdshukommelsens indvirkning på motorisk indlæring. Yderligere læsning kan findes i den nye undervisningsbog Boldspil og motorisk indlæring (Wienecke, 2015).</jats:p
Arbejdshukommelsens indvirkning på motorisk indlæring
No full textEnhver idrætsunderviser kan forevise og beskrive et volleyballfingerslag, og mange kan begrunde, hvorfor bevægelsen er, som den er. Men kan lige så mange undervisere forklare, hvordan arbejdshukommelsen bidrager i indlæringsfasen af den motoriske færdighed?Underviserens evner bygger ofte på erfaringen - hvilket er godt – udfordringen er, at det tager meget lang tid at oparbejde erfaringen. Måske kan man tage nogle kvantespring på ”forbedringsstigen” ved at have lidt mere teoretisk-praktisk viden om nogle af de bagvedliggende mekanismer. Denne artikel vil derfor fokusere på arbejdshukommelsens indvirkning på motorisk indlæring. Yderligere læsning kan findes i den nye undervisningsbog Boldspil og motorisk indlæring (Wienecke J, 2015)
Arbejdshukommelsens indvirkning på motorisk læring
No full textEnhver idrætsunderviser kan forevise og beskrive et volleyballfingerslag, og mange kan begrunde, hvorfor bevægelsen er, som den er. Men kan lige så mange undervisere forklare, hvordan arbejdshukommelsen bidrager i indlæringsfasen af den motoriske færdighed?
Underviserens evner bygger ofte på erfaringen - hvilket er godt. Udfordringen er, at det tager lang tid at oparbejde erfaringen. Måske kan man tage nogle kvantespring på ”forbedringsstigen” ved at have lidt mere teoretisk-praktisk viden om nogle af de bagvedliggende mekanismer.
Denne artikel vil derfor fokusere på arbejdshukommelsens indvirkning på motorisk indlæring. Yderligere læsning kan findes i den nye undervisningsbog Boldspil og motorisk indlæring (Wienecke, 2015)
Boldspilsundervisning i Teori og Praksis
No full textBoldspilsundervisning i teori og praksis henvender sig til lærerstuderende og idrætsstuderende og andre, der arbejder med boldspil i hverdagen. Det er bogens hensigt at udvide læserens perspektiv på, hvordan man kan bruge boldspil og boldspilsundervisning. Bogen indeholder konkrete forslag til boldspilsundervisning samt forslag til, hvordan man kan videreudvikle arbejdet med boldspil i relation til forskellige målgrupper: børn, voksne og personer med særlige behov.Bogen er unik ved sin kombination af teoretisk indsigt og praksisnær viden. Alle forfatterne til bogen har mange års erfaring med boldspilsundervisning, praksiserfaring som udøver samt dyb teoretisk indsigt. At anvende teorien i praksissituationer er vanskelig, og ofte oplever man, at underviserens teoriforståelse forbliver uden for sportshallen. Bogen giver en masse eksempler og forklaringer på, hvordan teorien kommer med ind i boldspilsundervisningen, således at læseren kan højne både det teoretiske og boldspilspraktiske niveau og dermed forbedre egen boldspilsundervisning
Southern giant petrels AAT
No full textProgress Code: completedStatement: See the referenced paper for more information.The data set is a compilation of all available information on counts of Southern giant petrel populations at three locations in the Australian Antarctic Territory (specifically the Frazier Islands, Giganteus Island and Hawker Island).<br/><br/>Data (location, date, count, count unit, method, collator, reference) were gathered from the published literature. Where questions arose about the data, e.g. when the methods were unclear, we attempted to contact the collators of the information in person to verify when and how the counts were conducted. The difficulty was that even within a season notes could be collated by different personnel. As names were not always noted it was often impossible to establish who had made a certain observation. We searched permit records and also checked station leaders' annual reports, field trip reports, biology logs and any other source of information we could find. Finally, we also obtained the records of banded Southern Giant petrels from the Australian Bird and Bat Banding Scheme (ABBBS, Department for the Environment, Canberra).<br/><br/>All information was entered into a spreadsheet noting dates, counts, units of counts, methods and whether or not they could be verified, as well as any comments made either in the field notes or log books or by researchers who we contacted directly.<br/><br/>The downloadable dataset contains an excel spreadsheet of compiled data, plus a list of all literature sources.<br/><br/>Taken from the abstract of the referenced paper:<br/><br/>The determination of the conservation status for a species at risk of extinction is based largely upon consistent change in the population size. In long-lived species, such as seabirds, long-term monitoring is required to establish the extent of the natural variability in a population and to detect true change. As studies spanning several generations within the same population are rare, researchers may turn to historically collected census information to expand the time frame of their studies. While in principle a valid approach, several limitations need to be considered to use historical information appropriately. Census information, collated from the 1950s until present, of three populations of southern giant petrels Macronectus giganteus in the Australian Antarctic Territory (AAT) is used to highlight potential limitations inherent in historical data. We demonstrate the importance of census time and count units when investigating potential changes in populations. Published accounts indicate that the numbers of southern giant petrels in the AAT have decreased significantly since their discovery and that more recently some recovery has taken place. However, for two of the three populations we could not find evidence supporting a change
Satellite tracking of Emperor penguin fledglings
No full textProgress Code: onGoingStatement: The values provided in spatial coverage are approximate only.<b>Purpose</b><br/>To determine the at-sea distribution of fledgling emperor penguins and to examine to which extent their foraging range may overlap with that of other species.As seabirds emperor penguins spent a large proportion of their lives at sea. For food they depend entirely on marine resources. Young penguins rarely return to their natal colonies after their first year. Satellite tracking will give us insights into where foraging areas may be that are important for these birds. This tracking work is part of a multi-species study funded by the Integrated Marine Observation System (IMOS)
Locations of Emperor Penguin colonies in East Antarctica, 2022
No full textProgress Code: completedStatement: The locations of the colonies identified in this dataset were based on analysis and interpretation of satellite imagery from Sentinel 2.<b>Purpose</b><br/>To identify areas throughout East Antarctica where Emperor Penguin colonies occur. These locations are date specific due to the variable nature of these colonies.This dataset shows the locations of Emperor Penguin colonies in East Antarctica in 2022, derived from the analysis of Sentinel 2 satellite imagery captured on various dates between April to December 2022. Sentinel 2 Level 2A imagery (10m resolution) was accessed via the European Space Agency’s Sentinel Playground (https://www.sentinel-hub.com/explore/sentinel-playground). The method involved searching areas where colonies had previously been reported, on imagery with generally less than 40% cloud cover (for methods see Fretwell and Trathan, 2021, Remote Sens. Ecol. Cons. 7, 139-153). Areas where faecal staining on ice was clearly visible were used as an indicator of Emperor Penguin colony presence. Colony locations identified by this method were collated into a point dataset, consisting of the colony name, location (latitude and longitude), the date of the satellite imagery from which the point location was derived, and a description of the location including any notable landmarks in the vicinity, e.g. named features, rock outcrops, grounded icebergs etc. <br/> <br/>The locations of 26 colonies from Umebosi Rock (~43° E) to Yule Bay (165.5° E) were determined through the use of satellite images. These colonies are ‘known’ colonies identified in previous studies and are named according to their location. It is important to note that these colonies tend to occur in the same general area every year, but their exact location may shift somewhat between years in response to variable sea ice conditions. The purpose of this dataset is therefore to identify exact colony locations at the specified date (the date of the satellite image from which the colony location was derived) and given the mobile nature of these colonies it is imperative that dates be included with any future colony location data. This dataset may be added to over time as colony locations vary from year to year. <br/><br/>This dataset was developed from analysis of Sentinel 2 satellite imagery (https://sentinel.esa.int/web/sentinel/missions/sentinel-2
Visuomotor skill learning in young adults with Down syndrome
No full textBackground: Individuals with Down syndrome (DS) have impaired general motor skills compared to typically developed (TD) individuals.Aims: To gain knowledge on how young adults with DS learn and retain new motor skills.Methods and procedures: A DS-group (mean age = 23.9 ± 3 years, N = 11), and an age-matched TD-group (mean age 22.8 ± 1.8, N = 14) were recruited. The participants practiced a visuomotor accuracy tracking task (VATT) in seven blocks (10.6 min). Online and offline effects of practice were assessed based on tests of motor performance at baseline immediate and 7-day retention.Outcomes and results: The TD-group performed better than the DS-group on all blocks (all P < 0.001). Both groups improved VATT-performance online from baseline to immediate retention, (all P < 0.001) with no difference in online effect between groups. A significant between-group difference was observed in the offline effect (∆TD - ∆DS, P = 0.04), as the DS-group's performance at 7-day retention was equal to their performance at immediate retention (∆DS, P > 0.05), whereas an offline decrease in performance was found in the TD-group (∆TD, P < 0.001).Conclusions and implications: Visuomotor pinch force accuracy is lower for adults with DS compared to TD. However, adults with DS display significant online improvements in performance with motor practice similar to changes observed for TD. Additionally, adults with DS demonstrate offline consolidation following motor learning leading to significant retention effects.</p
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