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Wyświetlanie 1-3 z 3
Tytuł:
Sedimentary evidence for an ice-sheet dammed lake in a mountain valley of the Eastern Sudetes, Czechia
Autorzy:
Hanáček, M.
Nývlt, D.
Skácelová, Z.
Nehyba, S.
Procházková, B.
Engel, Z.
Powiązania:
https://bibliotekanauki.pl/articles/138704.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
terminoglacial glaciofluvial Gilbert-type delta
foreset facies
preglacial morphology
ice-dammed lake
Pleistocene
Central Europe
Písečná Site
delta typu Gilberta
facje
morfologia preglacjalna
jezioro lodowcowe
jezioro proglacjalne
pleistocen
Europa Centralna
Opis:
An accumulation of glacial sediments is located near Písečná village in the depression between the Sokol Ridge and Zlaté Hory Highlands NNE of Jeseník town (Eastern Sudetes). The accumulation lies at the lateral side of the mountain valley of the Bělá River and fills a preglacial palaeovalley of this river. Research combining facies analysis of outcrops, ground penetrating radar survey, interpretation drilling survey, and modelling of the preglacial relief was undertaken at the site. According to the results obtained, the upper part of the sedimentary accumulation represents a coarse-grained terminoglacial glaciofluvial delta of the Gilbert type. The development of the accumulation has dominantly been driven by the preglacial morphology. Facies typical for foresets of coarse-grained deltas represented mainly by high-density flows, cohesionless debris flows, debris falls and less common low-density flows were found in the outcrops. The delta near Písečná prograded into a lake dammed by the ice-sheet front in the north. The lake was bounded by the slopes of Sokol Ridge, Zlaté Hory Highlands and Góry Parkowe on other sides. The lake level reached an altitude of up to 430 m a.s.l., as the coarse-grained delta plain base lies at this level.
Źródło:
Acta Geologica Polonica; 2018, 68, 1; 107-134
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bieganie jako forma rekreacji w lasach Polski i Republiki Czeskiej - zalety i wady
Running as a form of recreation in the Polish and Czech forests – advantages and disadvantages
Autorzy:
Janeczko, E.
Fialova, J.
Tomusiak, R.
Woźnicka, M.
Prochazkova, P.
Powiązania:
https://bibliotekanauki.pl/articles/980339.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lasy
rekreacja
bieganie
preferencje spoleczne
badania ankietowe
Polska
Czechy
recreation
sport
forest ecosystem services
internet questionnaire
social preferences
Opis:
The article presents a comparative analysis of social preferences related to running in the forests of Poland and the Czech Republic. The preferences were determined on the basis of a questionnaire distributed in 2016 via social media among people interested in running in in both countries. The survey covered 346 people over 18 years of age in Poland and 294 people from Czech Republic. The questionnaire included questions such as: the frequency of running in the forest, the preferred season for running and average number of running kilometers in the week and the views on advantages and disadvantages of running in forest areas. The results show that there is quite a lot of differences between the preferences of respondents from both of the analyzed countries. Statistical analysis was carried out using the chi−square test. The observed differences relate mainly to the choice of season for running in forests, the frequency of running in the forests, average distance covered in a week and the views on advantages of running in forest areas. The most preferred season for running in Polish forests was summer, then spring, while in Czech ones it was exactly the opposite. Most respondents in Poland run in the forest several times a week, whereas in the Czech Republic – several times a month. The most frequently mentioned advantages of running in Polish forests were: contact with nature, clean air, landscape – pleasant environment. In Czech forests among the most frequently mentioned advantages of running were: contact with nature, good quality surface and clean air. Subsequently, the respondents pointed to the lack of traffic control infrastructure, and lack or a small number of other recreational people. Among the disadvantages of running in the forest, respondents in both counties mentioned mainly: the presence of tick and hunters. Other factors limiting the comfort of running in the forests included: uneven road surface or problems with phone connection. Only the views on the subject of the attractiveness of the forests for running and disadvantages of running in forest areas were not significantly important.
Źródło:
Sylwan; 2019, 163, 06; 522-528
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of foot load during ballet dancers’ gait
Autorzy:
Prochazkova, M.
Tepla, L.
Svoboda, Z.
Janura, M.
Cieslarová, M.
Powiązania:
https://bibliotekanauki.pl/articles/306311.pdf
Data publikacji:
2014
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
walking
biomechanics
gait analysis
plantar pressure
forefoot
rearfoot
biomechanika
chód
analiza chodu
ciśnienie podeszwowe
Opis:
Ballet is an art that puts extreme demands on the dancer’s musculoskeletal system and therefore significantly affects motor behavior of the dancers. The aim of our research was to compare plantar pressure distribution during stance phase of gait between a group of professional ballet dancers and non-dancers. Thirteen professional dancers (5 men, 8 women; mean age of 24.1 ± 3.8 years) and 13 nondancers (5 men, 8 women; mean age of 26.1 ± 5.3 years) participated in this study. Foot pressure analysis during gait was collected using a 2 m pressure plate. The participants were instructed to walk across the platform at a self-selected pace barefoot. Three gait cycles were necessary for the data analysis. The results revealed higher ( p < 0.05) pressure peaks in medial edge of forefoot during gait for dancers in comparison with nondancers. Furthermore, differences in total foot loading and foot loading duration of rearfoot was higher ( p < 0.05) in dancers as well. We can attribute these differences to long-term and intensive dancing exercises that can change the dancer’s gait stereotype.
Źródło:
Acta of Bioengineering and Biomechanics; 2014, 16, 2; 41-45
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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