Search results for "Meta"
showing 10 items of 21438 documents
Dating archaeological copper/bronze artifacts by using the voltammetry of microparticles.
2014
A method for dating copper/bronze archaeological objects aged in atmospheric environments is proposed based on the specific signals for cuprite and tenorite corrosion products measured through the voltammtry of microparticles method. The tenorite/cuprite ratio increased with the corrosion time and fitted to a potential law that yielded a calibration curve usable for dating purposes.
Vuorovaikutusosaaminen ja sen kehittyminen tutkijoiden työssä
2014
Metaforu lietojums publikācijās par Latviju 2020. gada ārzemju presē
2021
Pētījumā tiek analizēts metaforu lietojums, galveno uzmanību pievēršot to funkciju izpētei. Metaforu funkcijas ietekmē vairāki faktori, piemēram, autora nodomi un mērķauditorija, kas nozīmē, ka tās ir cieši saistītas ar diskursu un kontekstu. Tādējādi, šajā darbā tika pētīts metaforu lietojums 2020. gada ārzemju mediju publikācijās par Latvijas jaunuzņēmumu ekosistēmu, izmantojot Džonatana Čarterisa-Bleka (2004) definēto kritiskā diskursa analīzes metodi. Balstoties uz kognitīvās metaforas teorijām, tika analizētas metaforu funkcijas un to aksioloģiskās vērtības publikācijās. Pētījuma rezultāti atklāja pārliecināšanas funkcijas daudzveidību, kā arī pozitīvo vērtību pārsvaru publikācijās par…
Metaforu pieredzes lauku diahroniskā analīze publikācijās par Latviju
2020
Valsts tēlveidei lietoto metaforu pētījumi ir piesaistījuši daudzu zinātnieku uzmanību, tomēr metaforu lietojums tieši Latvijai veltītajos rakstos nav daudz pētīts, tāpēc šim pētījumam tika izvirzīts mērķis noskaidrot, kā 15 gadu laikā ir mainījies Latvijas attēlojums plašsaziņas līdzekļos, un atklāt galvenās vērtības, kuras aktivizē metaforas. Pētījums tika veikts izmantojot kritisko metaforu analīzi un Metaforu identifikācijas procedūru. Pētījuma rezultāti uzrādīja, ka metaforām bieži bija negatīvas konotācijas, kas apstiprina Galtunga un Rūža (1965) apgalvojumu, ka mazāku nāciju attēlojums plašsaziņas līdzekļos bieži ir vērsts uz negativitāti. Pētījums ļāva secināt, ka Latvijas tēls main…
The effect of aquatic exercise on symptoms, function, body composition and cartilage in knee osteoarthritis
2016
Knee osteoarthritis (OA) is the most common joint disease associated with pain and loss of functional capacity. The management of knee OA is multifaceted and covers the whole OA continuum from injury prevention to the end stage of the disease. Recently, specific focus has been on preventing the progression of cartilage degeneration and avoiding loss of function in the early phase of the disease via the provision of exercise interventions. Aquatic exercise is a popular but under-researched exercise option. Therefore, the purpose of this dissertation was to investigate the role of aquatic exercise in the management of knee OA, focusing especially the effect it evokes on both functional capaci…
Mechanisms of irreversible aquaporin-10 inhibition by organogold compounds studied by combined biophysical methods and atomistic simulations
2021
Abstract The inhibition of glycerol permeation via human aquaporin-10 (hAQP10) by organometallic gold complexes has been studied by stopped-flow fluorescence spectroscopy, and its mechanism has been described using molecular modelling and atomistic simulations. The most effective hAQP10 inhibitors are cyclometalated Au(III) C^N compounds known to efficiently react with cysteine residues leading to the formation of irreversible C–S bonds. Functional assays also demonstrate the irreversibility of the binding to hAQP10 by the organometallic complexes. The obtained computational results by metadynamics show that the local arylation of Cys209 in hAQP10 by one of the gold inhibitors is mapped int…
Synergistic effect of W incorporation and pulsed current mode on wear and tribocorrosion resistance of coatings grown by plasma electrolytic oxidatio…
2019
Ceramic coatings were grown by plasma electrolytic oxidation on 7075 Al alloy using unipolar and bipolar pulsed current waveforms with 20 and 40% cathodic duty cycles, from a silicate-based bath without and with the addition of Na2WO4. Pancake-like morphology was dominant on the coatings grown by unipolar waveform, while the bipolar waveforms promoted volcano-like morphology, increased the roughness of the coating surface and the formation of more compact layers. The coatings produced using the bipolar waveforms provided higher resistances toward both tribocorrosion and dry sliding conditions, while further improvement was achieved by the presence of tungsten. The coatings produced in tungs…
Effect of Boron Doping on the Wear Behavior of the Growth and Nucleation Surfaces of Micro- and Nanocrystalline Diamond Films
2016
B-doped diamond has become the ultimate material for applications in the field of microelectromechanical systems (MEMS), which require both highly wear resistant and electrically conductive diamond films and microstructures. Despite the extensive research of the tribological properties of undoped diamond, to date there is very limited knowledge of the wear properties of highly B-doped diamond. Therefore, in this work a comprehensive investigation of the wear behavior of highly B-doped diamond is presented. Reciprocating sliding tests are performed on micro- and nanocrystalline diamond (MCD, NCD) films with varying B-doping levels and thicknesses. We demonstrate a linear dependency of the we…
Una metafísica del ser en cuanto creación. Juan David García Bacca lee a Alfred North Whitehead
2017
Al considerar el tratamiento que realiza Juan David García Bacca de Process and Reality de Alfred North Whitehead, el articulo busca apreciar la afinidad entre ambos autores en su caracterización de las deficiencias de la ontología clásica y en su invención de conceptos para un nuevo enfoque de la ontología; a saber, una metafísica de la creación y la novedad.