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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.
371

Marine invertebrate sperm: Assessment of sperm quality using computer-aided sperm analysis

Bennett, Monique January 2020 (has links)
Philosophiae Doctor - PhD / 2022-04-30
372

Experimental Translocation of the Florida Sand Skink (<em>Plestiodon</em> [=<em>Neoseps</em>] <em>reynoldsi</em>): Success of a Restricted Species Across Diverse Microhabitats

Osman, Nicholas Paul 18 June 2010 (has links)
The fossorial Florida Sand Skink (Plestiodon [=Neoseps] reynoldsi) inhabits a restricted range of scrub and sandhill fragments on the ridges of central Florida. The high rate of urban and agricultural development in this area necessitates conservation strategies other than land acquisition and management because of the limited remaining Florida Sand Skink habitat available. This study tests the viability of translocation as a conservation strategy for this species and assesses which features of a recipient site contribute to the successful establishment of a population. In 2007, 300 individuals were collected and moved from an intact scrub habitat, individually marked, and moved to a nearby reclaimed site with no existing Florida Sand Skink population. Fifteen 20 m² enclosures were constructed at the recipient site, and 20 skinks were randomly assigned to each. These enclosures were divided among five treatments, which were represented the range of habitat types at the donor site and differed in the presence or absence of a shade-providing object and coarse woody debris. Translocated skinks were monitored for two years to measure survival and reproduction. While survival and reproduction were apparent in all treatments, survival was significantly greater in enclosures with no shade-providing object and low soil moisture, and reproduction was most evident in enclosures with less light intensity and soil compaction. Common measurement of environmental variables at the donor and recipient sites showed that all of the recipient site enclosures differed from the donor site in the amount of vegetative cover but contained the structural heterogeneity that is associated with Florida Sand Skink presence in the wild. This study indicates that translocation is a practical conservation strategy for this species, and my results can be used to inform protocol for future Florida Sand Skink translocation efforts.
373

Associations between dolphin kick performance and lower extremity muscle strength, abdominal muscle strength and foot length in active competitive swimmers

Sundén, Jakob January 2020 (has links)
Background: Maximal muscle strength and body proportions are some of the key attributes to be a fast swimmer. Even though dolphin kick (DK) has become essential to be a fast swimmer little is known of its associations to muscle strength and body proportions. Moreover, the effect of feet size has been stated to be a primary contributor to dolphin kick thrust production, but scientific evidence is still scarce. Aim: The aim of this study was to examine the correlation between lower extremity muscle strength, abdominal strength and feet length with dolphin kick performance over 15 meters in active competitive swimmers 15-20 years old Method: Twelve Test subjects (six male and six female) participated. Test subjects performed four 15 meters dolphin kick trials. Lower extremity muscle strength was tested with a three repetition maximum strength test and abdominal strength with brutal bench test. The muscles tested were rectus femoris, biceps femoris and rectus abdominis. Feet length was measured with a measuring tape. The correlations between lower extremity strength, abdominal strength and feet length with dolphin kick performance were calculated with spearman’s correlation. Results: Twelve test subjects between ages 15-20 years old participated. Spearman correlation test showed that lower extremity strength (rectus femoris: rs=-0.57 and biceps femoris: rs=-0.66) had a large association with dolphin kick performance. Abdominal strength (rs=-0.46) and feet length (rs=-0.35) had a moderate association with dolphin kick performance. Conclusion: The present study conclude that lower extremity strength is important for DK performance over 15 meters and that abdominal strength and feet length also is important but is less associated to it. The finding from this study can be used for making training programs for improving DK performance and for scouting swimmers with beneficial traits for specific swimming technique.
374

Plavecký způsob kraul a jeho výuka v kurzech plavání u dětí mladšího školního věku / Swimming crawl and his swimming lessons for younger school children

Stasová, Petra January 2020 (has links)
The aim of this work is to find the most common mistakes in children of younger school age in swimming technique crawl. Another aim of the work is to eliminate mistakes in the technique of the given swimming method based on the elaborated training plan, in the range of sixteen hours. An integral part of the work will be to map the distance traveled at the beginning of monitoring and then at the end of the application of training. The theoretical part deals with the issue and description of the swimming crawl. The practical part of the thesis consists of recording and subsequent evaluation of individual errors according to the description of children's swimming technique. I will use the methods of observation, scaling, testing to evaluate the results and I will use the statistical method of data processing. The results of the work mostly correspond with the description of the child's technique of the crawl.
375

Extended life of swimming pools through LCC

Kroll, Stephan January 2012 (has links)
Swimming pools constructed with reinforced concrete require a high level of expertise within both, its planning and execution. To build waterproof concrete shells, extensive concrete technology knowledge, detailed planning of joint formation and high quality safety measures are needed. This thesis evaluates concrete technology features for swimming pool construction in Germany and Sweden. In particular, guidelines by DafStb, DIN and DgfdB provide the planner with detailed advice and specifics about swimming pools. It also gives an overview about the actual condition of swimming pools in Sweden that reached an age of at least 30 years and shows structural consequences of mistakes in planning and construction of swimming pools. The aspect of financial consequences is also analyzed. With the support of the software “Legep”, the methodology of LCC was used to estimate costs in the future. Additionally, a proposal of post tensioned concrete as a more sustainable technology for watertight concrete basins is shown and under equal aspects analyzed and compared.
376

Palliative for Savage Energies: Tidal Pools on the Adriatic Sea

Lentner, Jessica 05 August 2013 (has links)
The project is a public swimming sanctuary sited at the coast of the Adriatic Sea. The place sets up a bodily encounter with nature. The tidal lap pools, bath halls and paths are fragments, using the energy in line and color to appreciate human experience. The drawings are about the emergence of architecture from the convergence of land and sea. / Master of Architecture
377

Måluppfyllelse för simundervisning i grundskolan : En kvalitativ intervjustudie av idrottslärares uppfattningar av måluppfyllelse på mellan- och högstadiet / Reaching the curricilum goals in swimming education in elementary- and secondary schools for PE teachers

Helghe, Jonas January 2022 (has links)
Syftet med arbetet var att belysa mellanstadielärares och högstadielärares arbete med måluppfyllelsen för elever i simundervisning. Studien utgår från tre frågeställningar: Hur bedriver idrottslärare simundervisning utifrån de krav de har för elevers måluppfyllelse? Vilka uppfattningar har idrottslärare om simundervisning för elevers progression till måluppfyllelse av de kunskapskrav som är reglerad i Lgr 11? Vad i skolans organisation kan påverka måluppfyllelsen i simundervisning för eleverna? Sju idrottslärare verksamma på mellan- och högstadiet har intervjuats. Intervjumaterialet har tematiserats och analyserats utifrån bio-ekologiska systemteorins begrepp. Resultatet visar att alla lärare bedriver simundervisning efter läroplanen mot en progression i årskurs sex och nio. Lärarna i studien arbetar oerhört lösningsorienterat och hittar tid som inte finns på schemat till att skapa progression, övningstillfällen och utveckling för eleverna. Min slutsats är att lärarna arbetar mot samma mål men på olika sätt och att covid-19 pandemin har skapat fler utmaningar för mellanstadielärarna gentemot högstadielärarna. Utökad tid och fler undervisningstillfällen kan vara enkla åtgärder för att kommunerna att öka måluppfyllelsen i simning.
378

A comparison of swimming behavior in four species of mice found in the Sacramento-San Joaquin River Delta of California

Biggerstaff, Charles Edward 01 January 1977 (has links)
The purpose of the present study is to examine swimming position, gait, stroke speed, speed over distance, endurance, and willingness to enter water in four species of mice found in the Sacramento-San Joaquin River Delta of California; Mus musculus, Reithrodontomys megalotis longicaudus, Miorotus californicus acstuarius, and Peromyscus maniculatus gambelii.
379

Laktat i förhållande till prestation : Aktiv återhämtningspåverkan på prestation och laktatnivå / Lactate in relation to performance : Active recovery effect on performance and lactate level

Rantzow, Philip January 2021 (has links)
Background: An experimental design in used where 3 (2x100m) freestyle were performed on two test occasions with active recovery and passive recovery on one occasion each. Lactate certificates were taken before and after each set and the swimmers told with the help of a "VAS-scale" how tired they felt after each set. Results: The results showed that active recovery had a significant effect on lactate disappearence in the body compared with passive recovery and a positive effect on the subsequent maximum performance. Conclusion: Swimmers who perform active recovery between the maximum performaces in competion may have a better performace in the subsequent maximum performace than if they ar subjected to passive recovery. Keywords: Swimming, lactate, recovery
380

Horečky / Horečky

Voronin, Oleksandr January 2018 (has links)
The "MARIANKA" recreational complex is a modern building in a unique location with covered swimming pool with a swimming pool 25 m long, a spa area and recreation. The complex also includes a hotel, an outdoor area with a swimming pool of 25 meters, a children's pool, a hot tub and an outdoor dining area.

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