158 research outputs found
RELIABILITY AND VALIDITY OF A MOBILE APP FOR MEASURING SPRINT TIMES
No full textOvaj rad istražuje pouzdanost i valjanost mobilne aplikacije dizajnirane za mjerenje vremena sprinta u atletskim nastupima. U eri obilježenoj tehnološkim napretkom, integracija mobilnih aplikacija za procjenu sportskih performansi dobila je značajnu pozornost. Ova studija ima za cilj kritički procijeniti pouzdanost i valjanost mobilne aplikacije „Photo Finish“ u kvantificiranju vremena sprinta i istražiti njezin potencijal kao pouzdanog alata za trenere i sportaše. Testiranjem pouzdanosti i valjanosti aplikacije u odnosu na fotoćelije pokazane su visoke, gotovo savršene vrijednosti za pouzdanost (ICC = 0,997) i valjanost mjerenja (r = 0,997, p < 0,001).This undergraduate thesis investigates the reliability and validity of a mobile application designed for the measurement of sprint times in athletic performances. In an era marked by technological advancements, the integration of mobile apps for sports performance assessment has gained substantial attention. This study aims to critically evaluate the reliability and validity of the mobile app "Photo Finish" in quantifying sprint times and explore its potential as a reliable tool for coaches and athletes. Testing the reliability and validity of the application in relation to photocells showed high, almost perfect values for reliability (ICC = 0.997) and measurement validity (r = 0.997, p < 0.001)
Data compression for the first G-APD Cherenkov Telescope
No full textAbstract not availableM.L. Ahnen, M. Balbo, M. Bergmann, A. Biland, T. Bretz, J. Buß, D. Dorner, S. Einecke, J. Freiwald, C. Hempfling, D. Hildebrand, G. Hughes, W. Lustermann, E. Lyard, K. Mannheim, K. Meier, S. Mueller, D. Neise, A. Neronov, A.-K. Overkemping, A. Paravac, F. Pauss, W. Rhode, T. Steinbring, F. Temme, J. Thaele, S. Toscano, P. Vogler, R. Walter, A. Wilber
RELIABILITY AND VALIDITY OF A MOBILE APP FOR MEASURING SPRINT TIMES
No full textOvaj rad istražuje pouzdanost i valjanost mobilne aplikacije dizajnirane za mjerenje vremena sprinta u atletskim nastupima. U eri obilježenoj tehnološkim napretkom, integracija mobilnih aplikacija za procjenu sportskih performansi dobila je značajnu pozornost. Ova studija ima za cilj kritički procijeniti pouzdanost i valjanost mobilne aplikacije „Photo Finish“ u kvantificiranju vremena sprinta i istražiti njezin potencijal kao pouzdanog alata za trenere i sportaše. Testiranjem pouzdanosti i valjanosti aplikacije u odnosu na fotoćelije pokazane su visoke, gotovo savršene vrijednosti za pouzdanost (ICC = 0,997) i valjanost mjerenja (r = 0,997, p < 0,001).This undergraduate thesis investigates the reliability and validity of a mobile application designed for the measurement of sprint times in athletic performances. In an era marked by technological advancements, the integration of mobile apps for sports performance assessment has gained substantial attention. This study aims to critically evaluate the reliability and validity of the mobile app "Photo Finish" in quantifying sprint times and explore its potential as a reliable tool for coaches and athletes. Testing the reliability and validity of the application in relation to photocells showed high, almost perfect values for reliability (ICC = 0.997) and measurement validity (r = 0.997, p < 0.001)
Mathematics and Music
No full textCilj završnog rada je bio pronaći i pokazati poveznicu između matematike i glazbe, te pomoću programskog paketa MATLAB prikazati kako izgledaju osnovni glazbeni tonovi i jednostavna skladba u vremenskoj domeni.
U radu je matematički opisan zvuk, kao osnovno sredstvo glazbe. Dana je definicija zvuka, njegova podjela, te svojstva koja ga dodatno opisuju. Zvučni valovi su odgovorni za širenje samog zvuka, zbog toga su u radu objašnjene trigonometrijske funkcije koje opisuju to harmonijsko gibanje. Na primjeru vibrirajućih žica objašnjena je matematička i fizikalna pozadina harmonika, te objašnjeni neki od cjelobrojnih omjera koji glazbi daju dojam sklada i ugode. Također je prikazana digitalizacija zvučnog signala.
Koristeći MATLAB, napravljena je GUI aplikacija koja se može koristiti za analizu osnovnih glazbenih tonova mijenjanjem parametara funkcija koje opisuju svaki od tonova. Dodatno, skladana je i na grafu prikazana jednostavna pjesma korištenjem već spomenutih tonova.The goal of the thesis was to find and display the link between mathematics and music and then, using the programming environment MATLAB, plot some of the basic musical tones and show how a simple composition looks like in time domain.
The thesis describes sound, as a basic mean of music. We defined what sound is, how it is classified and shown some of its properties. Sound waves are responsible for sound propagation, therefore we’ve explained trigonometric functions that describe harmonic motion. Using a vibrating string example, we’ve described the mathematical and physical background of harmonics and explained some of the simple integer ratios that give music the feel of harmony and pleasantness. Also, we’ve shown the digitization of a sound wave.
Using MATLAB, we’ve developed a GUI application that can be used to analyze basic musical tones by changing the function parameters that describe each of the tones. Additionally, we’ve composed and plotted a simple composition using the already mentioned tones
TR-UCO. Proyectos europeos, n. 09
No full textEl proyecto PARAVAC está financiado por el VII Programa Marco con una aportación de la Comisión Europea de unos 9 millones de euros. El principal objetivo de este proyecto es el desarrollo y comercialización de vacunas para el control de helmintos en animales de producción. Los helmintos son parásitos que afectan a los animales y al hombre, si bien producen una baja mortalidad, las pérdidas en la ganadería son enorme
Attempts to vaccinate ewes and their lambs against natural infection with Haemonchus contortus in a tropical environment
No full textA vaccine containing integral membrane glycoproteins from the intestine of Haemonchus contortus was evaluated in three groups of grazing sheep each containing 13 ewes and their 16 lambs naturally infected with gastrointestinal nematodes. Two groups were vaccinated with either 5 or 50 mu g of the antigen per immunisation, while the third, the control group, received adjuvant alone. The sheep were immunised six times at 3 week intervals, partly because the vaccine antigens are hidden and thus no immunological boost would be delivered by subsequent infection and partly because the level of Haemonchus spp. challenge was expected to be high. The vaccinated ewes, first immunised approximately 1 month before lambing, showed a circulating antibody response but no signs of reduced anaemia or Haemonchus spp. egg counts, compared with control ewes. Several ewes with severe haemonchosis in all three groups had to be given precautionary treatment with anthelmintic drugs. In contrast, vaccinating their lambs with either 5 or 50 mu g of the antigen per immunisation resulted in 10 fold higher antibody titres. In the case of the lower antigen dose this was associated with significantly less anaemia, 72% reduction in the overall number of Haemonchus spp. eggs produced and significantly fewer worms compared with control lambs. It is hypothesised that the heavily pregnant or lactating ewes did not have sufficient physiological reserves to mount a protective response following vaccination in the tropical weather and high challenge conditions that prevailed. Nevertheless, the vaccine could afford useful protection for lambs against H. contortus. (C) 2014 Australian Society for Parasitology Inc. Published by Elsevier Ltd. All rights reserved.European Commission, Seventh Framework - PARAVAC ProjectFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)UNESP Univ Estadual Paulista, Dept Parasitol, Inst Biociencias, BR-18618000 Botucatu, SP, BrazilMoredun Res Inst, Edinburgh EH26 0PZ, Midlothian, ScotlandUNESP Univ Estadual Paulista, Dept Prod Anim, Fac Med Vet &Zootecnia, Fazenda Expt Lageado, BR-18618000 Botucatu, SP, BrazilUNESP Univ Estadual Paulista, Dept Parasitol, Inst Biociencias, BR-18618000 Botucatu, SP, BrazilUNESP Univ Estadual Paulista, Dept Prod Anim, Fac Med Vet &Zootecnia, Fazenda Expt Lageado, BR-18618000 Botucatu, SP, BrazilEuropean Commission, Seventh Framework - PARAVAC Project: 265862FAPESP: 2010/18678-5FAPESP: 2011/03806-
GRIPS and its strong connections to the GeV and TeV bands
No full textGRIPS is planned to be the next great satellite-born survey mission lead by Europe; it will look into the cosmos with unprecedented accuracy in several bands of the EM spectrum (infrared, X-rays, MeV gamma-rays); in particular in gamma-rays, GRIPS will be able to bridge the so-called MeV gap and to answer several questions brought forth by GeV-TeV gamma-ray observations. We will discuss here several connections to GeV-TeV gamma-ray astrophysics, focussing in
particular to show how GRIPS will be crucial in revealing the origin of cosmic rays
Calibration and performance of the photon sensor response of FACT - the first G-APD Cherenkov telescope
No full textThe First G-APD Cherenkov Telescope (FACT) is the first in-operation test of the performance of silicon photo detectors in Cherenkov Astronomy. For more than two years it is operated on La Palma, Canary Islands (Spain), for the purpose of long-term monitoring of astrophysical sources. For this, the performance of the photo detectors is crucial and therefore has been studied in great detail. Special care has been taken for their temperature and voltage dependence implementing a correction method to keep their properties stable. Several measurements have been carried out to monitor the performance. The measurements and their results are shown, demonstrating the stability of the gain below the percent level. The resulting stability of the whole system is discussed, nicely demonstrating that silicon photo detectors are perfectly suited for the usage in Cherenkov telescopes, especially for long-term monitoring purpose.A. Biland, T. Bretz, J. Buß, V. Commichau, L. Djambazov, D. Dorner, S. Einecke, D. Eisenacher, J. Freiwald, O. Grimm, H. von Gunten, C. Haller, C. Hempfling, D. Hildebrand, G. Hughes, U. Horisberger, M.L. Knoetig, T. Krähenbühl, W. Lustermann, E. Lyard, K. Mannheim, K. Meier, S. Mueller, D. Neise, A.-K. Overkemping, A. Paravac, F. Pauss, W. Rhode, U. Röser, J.-P. Stucki, T. Steinbring, F. Temme, J. Thaele, P. Vogler, R. Walter and Q. Weitze
Fasciola hepatica induces eosinophil apoptosis in the migratory and biliary stages of infection in sheep
No full textThe aim of the present work was to evaluate the number of apoptotic eosinophils in the livers of sheep experimentally infected with Fasciola hepatica during the migratory and biliary stages of infection. Four groups (n = 5) of sheep were used; groups 1–3 were orally infected with 200 metacercariae (mc) and sacrificed at 8 and 28 days post-infection (dpi), and 17 weeks post-infection (wpi), respectively. Group 4 was used as an uninfected control. Apoptosis was detected using immunohistochemistry with a polyclonal antibody against anti-active caspase-3, and transmission electron microscopy (TEM). Eosinophils were identified using the Hansel stain in serial sections for caspase-3, and by ultrastructural features using TEM. At 8 and 28 dpi, numerous caspase-3+ eosinophils were mainly found at the periphery of acute hepatic necrotic foci. The percentage of caspase -3+ apoptotic eosinophils in the periphery of necrotic foci was high (46.1–53.9) at 8 and 28 dpi, respectively, and decreased in granulomas found at 28 dpi (6%). Transmission electron microscopy confirmed the presence of apoptotic eosinophils in hepatic lesions at 8 and 28 dpi. At 17 wpi, apoptotic eosinophils were detected in the infiltrate surrounding some enlarged bile ducts containing adult flukes. This is the first report of apoptosis induced by F. hepatica in sheep and the first study reporting apoptosis in eosinophils in hepatic inflammatory infiltrates in vivo. The high number of apoptotic eosinophils in acute necrotic tracts during the migratory and biliary stages of infection suggests that eosinophil apoptosis may play a role in F. hepatica survival during different stages of infection
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