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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

Kineziologická analýza odrazu při běhu na lyžích / The reflection kinesiology analyse of cross country skiing

Chrástková, Martina January 2015 (has links)
Title: The reflection kinesiology analyse of cross country skiing Purposes: To compare coordination of chosen muscles on leg during reflection of cross country skiing classic technique, skating and herringbone. Methods: Comparative analysis: the dates were measured by surface electromyography and 2-D video-analysis. Results: We founded statistical significance by comparisons muscle activation on right leg during kick during cross country skiing: classic technique, diagonal stride and herringbone and V-1 skating and herringbone. In case the left leg the statistical significance was disprove by: m. peroneus longus sin during comparison of diagonal stride and herringbone and m. gastrocnemius medialis sin V-1 skating and herringbone. We founded high level of laterality of diagonal stride and herringbone. In case V-1 skating, the significant similarity was not founded for m. vastus lateralis and m. gluteus medialis. Key words: Cross country skiing, classical technique, skating, herring bone, kinesiology, surface electromyography (EMG), muscles activation
92

Ecological Consequences of Lost Anadromous Forage Fish in Freshwater Ecosystems

Mattocks, Steven R 07 November 2016 (has links)
Beginning in the early 1600s, dam construction in New England obstructed anadromous fish access to spawning grounds during migration. As a result, anadromous forage fish populations have declined, which has impacted freshwater, marine, and terrestrial ecosystems. To determine the impacts of dams on anadromous forage fish and freshwater ecosystems, I used historical and current data to estimate population changes in alewives (Alosa pseudoharengus) from 1600-1900. A significant reduction in spawning habitat occurred in New England as a result of 1,642 dams constructed between 1600 and 1900, resulting in 14.8% and 16.6% lake and stream habitat remaining by 1900, respectively. In eight New England watersheds, this translates to an estimated cumulative annual loss of 30 B juvenile alewives available as freshwater forage and 538 M year 1, 2 and 3 alewives available as marine forage. The cumulative annual lost number of adult return spawners was conservatively 17 M fish, or 3,642 metric tons. Lost marine-derived nutrients from adult return spawners were 11 T phosphorus, 64 T nitrogen, and 410 T carbon. A comparison of predator fish growth and condition in alewife and non-alewife lakes showed that white perch (Morone Americana) and yellow perch (Perca flavescens) have higher condition in early summer in lakes with alewives. Predator growth rates (length-at-age) were significantly higher in early life stages (ages 1 and 2) when alewives were present, but significantly lower in late life stages (ages 3 and older). Results indicate a greater maximum length obtained by mature fish when alewives are absent, and an earlier age and length at maturity when alewives are present. These results indicate significant ecosystem impacts of lost anadromous forage fish, with bottom-up trophic effects across multiple time scales and biological processes. An ecosystem-based management approach should be used by inland and marine aquatic managers, and ecosystem connectivity and trophic interactions should be considered when managing migratory fish and prioritizing restoration goals.
93

Laws of the land: indigenous and state jurisdictions on the Central Coast

Colgrove, Sarah 20 December 2019 (has links)
With discussion of Indigenous laws on the rise in Canada, this thesis explores the question of law’s power: jurisdiction. In this project, I ask whether Indigenous jurisdiction is active in conflicts between Indigenous and state actors over the environment, in the context of the Heiltsuk Nation on the central coast of British Columbia. This project looks to critical legal theory for an understanding of jurisdiction. It identifies three aspects of jurisdiction that are discussed in critical legal theory and related fields: that it is technical, it is authoritative, and it is spatial. Adopting these qualities as provisional indicators of jurisdiction, it applies thefzm to three case studies of Heiltsuk (or “Haíɫzaqv”) conflicts with the state, which engage colonial law in different ways. The three case studies concern (1) herring harvest and management, which was litigated in R v Gladstone; (2) land use and forestry, which is the subject of the Great Bear Rainforest agreements; and (3) trophy hunting for bears, which is the subject of a grassroots campaign based on Indigenous law. Adopting a qualitative approach adapted from institutional ethnography, this project applies a critical jurisdictional lens to each case study, using documentary review and interviews to explore the technical, authoritative, and spatial aspects of each conflict. Ultimately, I find that expressions of Heiltsuk jurisdiction – as understood from a colonial, critical perspective – are already at play in each conflict, although this is not immediately visible from the point of view of colonial law. In the conclusion, I explore the different manifestations and strategies of Heiltsuk jurisdictional expressions, and the ways that colonial jurisdiction interacts with them. / Graduate / 2021-12-19

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