The dormouse Muscardinus avellanarius has disappeared from a large part of its range in England, probably because of habitat fragmentation and deterioration. Reintroductions, mainly using captive-bred animals, have been generally successful at re-establishing populations within this lost part of the species’ range, with only 2, perhaps 3, out of 15 known to have failed. However, the establishment of new isolated populations is not seen as an end point to the project and attention is now focused on improving habitat connectivity around the reintroduction sites, to enable the founder populations to spread to nearby woods.
Accurate measurement of shallow flows is important for hydraulics, hydrology and water resources management. The objective of this paper is to discuss a technique for shallow flow and overland flow velocity estimation that uses infrared thermography. Laboratory flumes and different bare, vegetated and paved field surfaces were used to test the technique. Results show that shallow flow surface velocities estimated using thermal tracers and infrared technology are similar to estimates obtained using the Acoustic Doppler Velocimeter; similar results were also obtained for overland flow velocity estimates using thermography, here comparing with the dye tracer technique. The thermographic approach revealed some potential as a flow visualization technique, and leaves space for future studies and research.
Trh s učebnými pomôckami poskytuje množstvo rôznych pomôcok, experimentálnych zostáv, ktoré je možné na vyučovaní bez problémov využiť. V mnohých prípadoch si však ich zakúpenie vyžaduje nemalé finančné prostriedky. V súčasnosti existuje veľa možností na vytvorenie prototypu experimentálnej súpravy, ktorá by mala potenciál stať sa užitočnou a najmä lacnou pomôckou vo vzdelávaní mladých ľudí, nie je to však triviálna úloha. Cieľom predkladaného príspevku je ukázať, aké problémy sme objavili (a museli vyriešiť) pri konštrukcii základného prvku nami navrhovanej experimentálnej zostavy - zdroja jednosmerného napätia pre viaceré moduly v experimentálnej súprave., The market for teaching aids provides many different tools and experimental sets suitable for seamless teaching. However, in many cases, their purchase requires considerable funds. At present, there are any ways to create a prototype of an experimental set, which has the potential to become a useful and cheap tool in the education of young people, but this is not a trivial task. In this article, we introduce several problems which were discovered and solved during the construction of a basic part of a DC power supply suitable for individual experimental modules., Martin Hruška., and Obsahuje bibliografické odkazy
In this study we consider the comedies of Ignaz Cornova. Locating his plays within the landscape of late 18th century genres, we examine the specific use the writer makes of contemporary dramatic conventions and the way in which he engineers the social reconciliation that characterizes his comedies. First we take a closer look at the dramatic construction of his plays and compare them with the comedic output of his contemporaries active in Bohemia. We then focus on Cornova’s particular use of the language of comedy, of which we find echoes in his many and varied writings on culture and politics. Finally, we address the issue of relations between the social estates or classes. Our conclusion shows that the storylines Cornova rehearses in his comedies are later exploited in his historical writings and may thus be considered as the author’s recipe for pacifying the social conflicts of the period.