Search results for "EPO"
showing 10 items of 6062 documents
E-portfolio yliopisto-opiskelijoiden asiantuntijuuden rakentajana
2022
Varhaiskasvatuksen työelämässä on ajankohtainen tarve koulutetuille varhaiskasvatuksen opettajille. Varhaiskasvatuksen opettajia koulutetaan vielä tällä hetkellä sekä yliopistoissa että ammattikorkeakouluissa. Vastavalmistuvilla varhaiskasvatuksen opettajilla on todettu olevan haasteita työelämään sitoutumisessa. Sitoutumista heikentää esimerkiksi epävarmuus oman osaamisen riittävyydestä opettajan työhön. (ks. Kantonen, Onnismaa, Reunamo & Tahkokallio, 2020.) Monissa korkeakouluissa on kehitetty portfoliotyöskentelyä tukemaan opiskelijan ammatillista kasvua ja oppimista, arviointia sekä osaamisen tekemistä näkyväksi. Portfoliotyöskentelyn avulla voidaan tarkastella, millaista osaamista ja a…
Structural and optical characterization of ZnS ultrathin films prepared by low-temperature ALD from diethylzinc and 1.5-pentanedithiol after various …
2019
The structural and optical evolution of the ZnS thin films prepared by atomic layer deposition (ALD) from the diethylzinc (DEZ) and 1,5-pentanedithiol (PDT) as zinc and sulfur precursors was studied. A deposited ZnS layer (of about 60 nm) is amorphous, with a significant S excess. After annealing, the stoichiometry improved for annealing temperatures &ge
Mechanical and optical properties of as-grown and thermally annealed titanium dioxide from titanium tetrachloride and water by atomic layer deposition
2021
Funding Information: This work was carried out within the MECHALD project funded by Business Finland (Tekes) and is linked to the Finnish Centers of Excellence in Atomic Layer Deposition (ref. 251220) and Nuclear and Accelerator Based Physics (refs. 213503 and 251353) of the Academy of Finland. Funding Information: This work was carried out within the MECHALD project funded by Business Finland (Tekes) and is linked to the Finnish Centers of Excellence in Atomic Layer Deposition (ref. 251220 ) and Nuclear and Accelerator Based Physics (refs. 213503 and 251353 ) of the Academy of Finland. Publisher Copyright: © 2021 The use of thin-films made by atomic layer deposition (ALD) is increasing in …
Evolution of microstructure and related optical properties of ZnO grown by atomic layer deposition.
2013
A study of transmittance and photoluminescence spectra on the growth of oxygen-rich ultra-thin ZnO films prepared by atomic layer deposition is reported. The structural transition from an amorphous to a polycrystalline state is observed upon increasing the thickness. The unusual behavior of the energy gap with thickness reflected by optical properties is attributed to the improvement of the crystalline structure resulting from a decreasing concentration of point defects at the growth of grains. The spectra of UV and visible photoluminescence emissions correspond to transitions near the band-edge and defect-related transitions. Additional emissions were observed from band-tail states near th…
Optical and structural properties of Al 2 O 3 /ZnO nanolaminates deposited by ALD method
2014
International audience; We report on the investigation of optical and structural properties of Al2O3/ZnO nanolaminates. The nanolaminates were deposited on Si and glass substrates by Atomic layer deposition method. Structural properties of nanolaminates were studied by SEM, GIXRD, and AFM. Optical characterization was performed by transmittance and photoluminescence spectroscopy. Complex analysis of monolayer properties was done by ellipsometry. Optical constants for Al2O3 and ZnO monolayer were calculated.
Atomic layer deposition of AlN from AlCl3 using NH3 and Ar/NH3 plasma
2018
The atomic layer deposition (ALD) of AlN from AlCl3 was investigated using a thermal process with NH3 and a plasma-enhanced (PE)ALD process with Ar/NH3 plasma. The growth was limited in the thermal process by the low reactivity of NH3, and impractically long pulses were required to reach saturation. Despite the plasma activation, the growth per cycle in the PEALD process was lower than that in the thermal process (0.4A ° vs 0.7A ° ). However, the plasma process resulted in a lower concentration of impurities in the films compared to the thermal process. Both the thermal and plasma processes yielded crystalline films; however, the degree of crystallinity was higher in the plasma process. The…
Dental implants rehabilitation in a patient with head and neck radiotherapy for osteosarcoma in the jaw. A clinical case report
2021
A 52-year-old female patient with a diagnostic of osteosarcoma in the mandible, in which it was necessary a reconstruction with a microvascularized osteomyocutaneous fibula bone. Coadjuvant chemotherapy was scheduled. Two years later, 4 osseointegrated implants (OII) were placed in the fibula a 2 OII in the right mandible, using a splint guided surgery. The final prosthodontic consisted in a metal ceramic restoration using CAD/ CAM technology. Key words:Oral rehabilitation, oral cancer, head and neck radiotherapy, oral oncology.
A strange “butterly-like” ulcer of the palate. May be it the results of an underlying trombotic event in a predisposed patient?
2013
Impacto social del Gran Premio de Europa de Fórmula Uno entre los residentes del municipio de Valencia
2012
El estudio del impacto social de los eventos deportivos se enmarca dentro de las principales líneas de investigación de la gestión del deporte. El conocimiento del impacto social de los eventos deportivos puede aportar datos para establecer la mejora de la toma de decisiones que supongan una mejora de la organización de los mismos con el fin mejorar la percepción de los residentes de las ciudades que los albergan. Los objetivos principales de la presente investigación han sido, es analizar la percepción que los ciudadanos de Valencia tienen sobre la realización del Gran Premio de Europa de Fórmula Uno en la ciudad: conocimientos, intereses, actitudes, comportamientos y expectativa de dicha …
Employee Sensemaking on the Importance of Sustainability Reporting in Sustainability Identity Change
2018
This study examines employee sensemaking processes in order to understand the role of sustainability reporting in organizational identity change. Through an analysis of 52 interviews with employees in two Finnish companies we develop sensemaking frames for understanding the role of sustainability reporting in organizational identity change. The three sensemaking frames are individualistic, relational and decoupled. Each of these sensemaking frames differs in stakeholder orientation. They indicate that sensemaking influences the interpretation of how important sustainability reporting is for organizational identity change towards sustainability. The study showed how the individualistic and r…