Search results for "ground"
showing 10 items of 2432 documents
Eri ikäryhmien luontosuhteen erot ja biologian opetus
2011
Search for Electron Antineutrino Appearance in a Long-baseline Muon Antineutrino Beam
2020
Electron antineutrino appearance is measured by the T2K experiment in an accelerator-produced antineutrino beam, using additional neutrino beam operation to constrain parameters of the Pontecorvo-Maki-Nakagawa-Sakata (PMNS) mixing matrix. T2K observes 15 candidate electron antineutrino events with a background expectation of 9.3 events. Including information from the kinematic distribution of observed events, the hypothesis of no electron antineutrino appearance is disfavored with a significance of 2.40 σ and no discrepancy between data and PMNS predictions is found. A complementary analysis that introduces an additional free parameter which allows non-PMNS values of electron neutrino and a…
EFFECTS OF STRIKING STRATEGY ON LOWER EXTREMITY LOADING DURING RUNNING
2013
Backround It is expected that every second runner has a running-related overuse injury each year. The knee joint and Achilles tendon are the most commonly injured sites covering both about one fifth of all running related injuries. 1 Runners can be categorized into rearfoot strikers, mid-foot strikers or forefoot strikers based on the landing strategy at the instant of initial ground contact. Forefoot or mid-foot striking has been shown to reduce impact peak and loading rate of the ground reaction force during early stance phase. 2 Furthermore, the finding of the recent study suggest that forefoot striking may potentially decrease the risk of running-related injuries. 3 However, the effect …
Biomechanische Überlegungen über Stoßkräfte und Fußstabilität beim Laufen
1993
The interaction between "man-shoe and surface" is presented as a model to discuss the complexity of human locomotion. Only if the physiological system "man" interacts positively with the physical requirements of shoe and surface quality running will become effective and economical. Especially during the early ground contact phase the hardness of the shoe construction determines the height of the vertical impact load. These adaptations have consequences in the emg amplitudes during the stretch activation phase of the contact. Comparing various jogging shoes with altered construction properties it can be shown that the "hardness" of the shoe material is well adapted by the variation in the em…
Comparison between the directly measured achilles tendon force and the tendon force calculated from the ankle joint moment during vertical jumps.
1988
Summary The purpose of this study was to compare the relationship between the achilles tendon force and the tendon force estimated from the ankle joint moment (EATF) during vertical jump. A healthy male subject performed the following jumps on the force platform: (a) maximal vertical jump from a squat position without counter-movement; (b) maximal vertical jump from an erect standing position with a preliminary counter-movement; (c) repetitive submaximal hopping on the spot with preferred frequency. The achilles tendon force was measured directly with an implanted tendon transducer in all jumping conditions. In addition the joint moment obtained from the film and ground reaction force was u…
Post-synovectomy changes in the articular cartilage
1978
Synovectomy of the left knee was performed in 37 immature rabbits, using the right knee for control. In the first set of experiments the articular cartilage was examined at weekly intervals for 8 weeks following the operation, paying particular attention to the metachromatic changes in the ground substance of the cartilage. In the second set of experiments, restoration of synovium was examined. In the third and fourth set of experiments, the uptake of S35 by the cartilage was assessed using autoradiography and densitometry. In the fifth set of experiments, alterations in S35 uptake by the chondrocitic cells of the cartilage were studied by electron microscopy.
Exploring the Interpersonal Level of Music Performance Anxiety : Online Listener’s Accuracy in Detecting Performer Anxiety
2022
Music performance anxiety (MPA) affects musicians at various stages of a performance, from its preparation until the aftermath of its delivery. Given the commonality and potentially grave consequences of MPA, it is understandable that much attention has been paid to the musician experiencing it. Consequently, we have learned a great deal about the intrapersonal level of MPA: how to measure it, treatments, experimental manipulations, and subjective experiences. However, MPA may also manifest at an interpersonal level by influencing how the performance is perceived. Yet, this has not yet been measured. This exploratory online study focuses on the listener’s perception of anxiety and compares …
Evaluation of radiological findings with COVID-19 lung lesions in Latvia in the view of artificial intelligence and radiologist
2022
Pēc Pasaules Veselības organizācijas datiem kopš pandēmijas sākuma kopējais ar Covid-19 saslimušo cilvēku skaits pārsniedz 500 miljonus. Mākslīgais intelekts (MI) paver plašas iespējas Covid-19 infekcijas izraisīto plaušu bojājumu diagnostikā, kas var uzlabot un atvieglojot radiologa darbu veicinot gan izmeklējuma specifitātes, gan sensitivitātes izvērtēšanas iespējas. Šī pētījuma galvenais mērķis bija salīdzināt MI un radiologa atradnes precizitāti Covid-19 radītā plaušu bojājuma izvērtēšanā un noteikt interpretācijas ierobežojumus un priekšrocības klīniskā kontekstā. Savukārt darba uzdevumi bija iepazīties un apkopot datus ar jaunāko literatūru par MI pielietošanas iespējām medicīnā. Apko…
Constructing consumer femininities : a study of young female bloggers' portrayal of consumption in fashion blogs
2015
Tutkijat ovat jo pitkään kiinnittäneet huomiota siihen, kuinka nuorille naisille suunnatut aikakauslehdet esittävät naiset ensisijaisesti kuluttajina ja rohkaisevat heitä rakentamaan naiseuttaan kuluttamisen varaan. Nykyään aikakauslehtien lisäksi toimivat blogit, joissa nuoret naiset itse rakentavat identiteettiään kuluttamalla ja jakavat käsityksiään ja arvojaan muiden blogien kirjoittajien ja lukijoiden kanssa. Tätä valtavaa määrää nuoria naisia koskettavaa ilmiötä ei kuitenkaan juuri ole tutkittu, ja tähän tarpeeseen tutkimukseni koettaakin vastata. Sen pyrkimyksenä on selvittää, kuinka nuoret naiset kuvaavat kuluttamista muotiblogeissaan ja millaisia merkityksiä he antavat kuluttamisel…