Search results for "sika"
showing 10 items of 216 documents
Deviance detection in sound frequency in simple and complex sounds in urethane-anesthetized rats
2019
Mismatch negativity (MMN), which is an electrophysiological response demonstrated in humans and animals, reflects memory-based deviance detection in a series of sounds. However, only a few studies on rodents have used control conditions that were sufficient in eliminating confounding factors that could also explain differential responses to deviant sounds. Furthermore, it is unclear if change detection occurs similarly for sinusoidal and complex sounds. In this study, we investigated frequency change detection in urethane-anesthetized rats by recording local-field potentials from the dura above the auditory cortex. We studied change detection in sinusoidal and complex sounds in a series of …
Randomized Trial of General Strength and Conditioning versus Motor Control and Manual Therapy for Chronic Low Back Pain on Physical and Self-Report O…
2020
Exercise and spinal manipulative therapy are commonly used for the treatment of chronic low back pain (CLBP) in Australia. Reduction in pain intensity is a common outcome
Dietary intake and strength training adaptation in 50-70 -year old men and women : with special reference to muscle mass, strength, serum anabolic ho…
2007
Frailty has been defined as an age-related decrease of the physiologic systems that results in weakness, weight loss and decreased functional performance, thus increasing the risk of disability. The physical characteristics of frailty are affected by the amount of muscle mass and strength. Strength training (ST) can alleviate age-related declines in muscle mass, strength and physical function. However, there is controversy regarding whether dietary intake can improve the effects of ST. The present thesis assessed the effects of dietary intake (DI) on muscular, hormonal and metabolic adaptations to ST in healthy 50-70 year old people. In cross-sectional study I, maximal strength of the leg e…
Interactive data-driven multiobjective optimization of metallurgical properties of microalloyed steels using the DESDEO framework
2023
Solving real-life data-driven multiobjective optimization problems involves many complicated challenges. These challenges include preprocessing the data, modelling the objective functions, getting a meaningful formulation of the problem, and supporting decision makers to find preferred solutions in the existence of conflicting objective functions. In this paper, we tackle the problem of optimizing the composition of microalloyed steels to get good mechanical properties such as yield strength, percentage elongation, and Charpy energy. We formulate a problem with six objective functions based on data available and support two decision makers in finding a solution that satisfies them both. To …
Influence of B content on microstructure, phase composition and mechanical properties of CVD Ti(B,N) coatings
2022
Within this work the effect of the B content on the microstructure, phase composition and mechanical properties of CVD Ti(B,N) coatings is investigated. Ti(B,N) coatings with B contents from 0 (fcc-TiN) to ∼5, ∼15, ∼30, ∼45 and 66 (h-TiB2) at.% have been deposited by CVD. The elemental composition of the coatings was confirmed by ERDA and their microstructure was investigated using XRD and SEM. With increasing B content, a transition from a fcc to a h-dominated structure via dual-phase fcc/h-Ti(B,N) was observed, which was accompanied by a decreasing grain size from the µm to nm range. Combinatorial use of Raman spectroscopy, XPS and APT measurements indicated B-rich grain boundary segregat…
Biznesa angļu valodas mācīšanās aplikāciju salīdzinošā analīze
2020
Mūsdienās ir palielinājies mobilo aplikāciju lietojums valodu apguvē, jo tās ir viegli pieejamas, ērti lietojamas, to lietošanai nav nepieciešams īpašs aprīkojums, kā tikai viedtālrunis vai planšetdators, turklāt, pieejamās mobilās aplikācijas lielākoties ir bezmaksas. Pētījumā tika izmantota kvalitatīvā gadījuma izpētes metode, kuras mērķis bija gūt priekšstatu par biznesa angļu valodas mobilajām aplikācijām, kā arī veikt izvēlēto aplikāciju kvalitātes analīzi, balstoties uz teorētiskās literatūras analīzes rezultātā iegūtajiem vērtēšanas kritērijiem. Pētījuma rezultāti liecina, ka mobilās aplikācijas var tikt izmantotas kā papildus materiāls tradicionālajai biznesa angļu valodas programma…
Lubāna ledus loba veidotās reljefa formas Jersikas līdzenumā
2022
Šulcs. R., 2022. Lubāna ledus loba veidotās reljefa formas Jersikas līdzenumā. Rīga, Latvijas Universitāte, 53 lpp. Bakalaura darbā tika pētītas Jersikas līdzenumā sastopamās ledāja reljefa formas. Darba mērķis ir identificēt un raksturot Lubāna ledus loba veidoto reljefa formu izvietojumu, morfoloģiju, iekšējo uzbūvi, ģenēzi un saprast to saistību ar ledus loba uzvirzīšanās un atkāpšanās gaitu. Ledāja reljefa formas tika identificētas un nokartētas, izmantojot augstas izšķirtspējas digitālo reljefa modeli. Lauka darbos tika pētīti teritorijā esošie atsegumi un veikti urbumi ledāja veidotajās reljefa formās. Pētījumā iegūtie rezultāti ļauj interpretēt Lubāna ledus loba dinamiku un zemledāja…
Physical Activity in Peri-Urban Communities: Testing Intentional and Implicit Processes within an Ecological Framework.
2020
Background Given the substantive health inequalities in peri‐urban communities and the potential for physical activity to promote health in these communities, identifying modifiable physical activity determinants in this population is important. This study explored effects of the peri‐urban environment and psychological constructs on physical activity intentions and behavioural automaticity guided by an integrated theoretical framework. Methods Peri‐urban Australians (N = 271) completed self‐report measures of environmental (i.e. physical/social environment, and neighbourhood selection), motivational (i.e. autonomous motivation), and social cognition (i.e. attitudes, norms, and perceived be…
Laulun iloa ja hyvää Karmaa : musiikkiluokalle hakeutumisen prosessi oppilaiden, vanhempien ja opettajien kuvaamana
2010
Opinnäytetyössä tarkastellaan musiikkiluokalle hakeutumista oppilaiden, vanhempien sekä opettajien näkökulmasta. Tutkimuksen tavoitteena oli selvittää musiikkiluokalle hakeutumisen taustalla olevia motiiveja, valintakokeeseen valmistautumista ja kokemusta, musiikkiluokalla opiskelun edellytyksiä sekä käytetyn pääsykoemenetelmän sopivuutta oppilasaineksen valinnassa. Tutkimuksen kohdejoukkona olivat erään suomalaisen peruskoulun musiikkiluokan 3. vuosiluokan 24 oppilasta, heidän vanhempansa sekä koulun musiikkiluokkia opettavat luokanopettajat. Teoreettinen viitekehys on jäsennetty musikaalisuutta ja musiikin opiskelun motivaatiota käsittelevistä teorioista käsin; Karman musikaalisuuden mall…