Search results for "face"

The Role of the Anchor Atom in the Ligand of the Monolayer-Protected Au25(XR)18– Nanocluster

2015

We present a density functional theory (DFT) investigation on the role of the anchor atom and ligand on the structural, electronic, and optical properties of the anionic Au25(XR)18– nanocluster (X = S, Se, Te; R = H, CH3, and (CH2)2Ph). Substituting the anchor atom with other group 16 elements induces subtle changes in the Au–Au and Au–X bond lengths and polarization of the covalent bond. The changes in the electronic structure based on substituting both the anchor and R groups are presented through careful analysis of the density of states and theoretical determined optical spectra. We give a detailed side-by-side comparison into the structural, electronic, and optical properties of Au25(X…

Choosing a study mode in blended learning

2012

Education providers aim to meet today's education requirements by employing, among other things, education technology solutions that increase flexibility. This has also happened with the master's level mathematical information technology degree directed to adults. In the degree program, lecture videos brought in together with face-to-face teaching provide good opportunities for flexible educational arrangements. Education with the help of videos can be arranged in such a way that students themselves will be able to choose their study mode in accordance with their needs. When students themselves can choose their study modes, many different ways to take advantage of the flexibility provided a…

Adsorption and Activation of Water on Cuboctahedral Rhodium and Platinum Nanoparticles

2017

Rh and Pt are widely used as the components in heterogeneous catalysts for multiple industrial applications. Because the metals are typically in the form of nanoparticles in real catalysts, it is important to carefully select models for the computational prediction of the catalytic properties. Here we report a first-principles study on the water activation, an important step in numerous catalytic reactions, using the finite-size Rh and Pt nanoparticle models and compare them to the extended surface models. We show that regardless of the model, adsorption and activation of water is practically identical for both metals, whereas the dissociation is energetically more favorable on Rh. The expe…

The Janus face of social innovation in local welfare initiatives

2017

Face-work in intimate public conversation : men and women's talk in Ricki Lake show

2000

Design of mobile phones for older adults : An empirical analysis of design guidelines and checklists for feature phones and smartphones

2017

Design guidelines and checklists are suggested as a useful tool in the development and evaluation of interface design of mobile phones for older adults. Given the intense evolution of mobile phone design, understanding how the design guidelines and checklists have taken into account the advances in mobile phone usability for older adults is important for their correct application and future development. Thus, this study explores the usability dimensions of mobile phone design for older adults and the related changes in terms of time and the type of device (feature phones vs. smartphones) based on an expert coding of the eight mobile phone design guidelines and checklists for older adults pu…

Awareness and knowledge of cyberethics: A comparative study of preservice teachers in Malta, Norway, and Spain

2021

This paper explores the awareness and knowledge of cyberethics held by pre-service teachers across three European countries. The study was conducted via an online survey and yielded 1,131 responses from pre-service teachers in Malta, Norway, and Spain. The facets of cyberethics included in this study focused on behaving responsibly online, safeguarding privacy, respecting copyright, seeking consent of friends before posting images or videos on social media platforms, and considering their professional identity as future teachers when posting online. The findings indicate that pre-service teachers reported relatively similar levels of competence in applying copyright and respecting privacy r…

RIE : revista de investigación educativa

2016

<p class="RESUMENCURSIVA">En este trabajo presentamos una experiencia de investigación educativa llevada a cabo en un centro de Educación Secundaria Obligatoria (ESO), cuya finalidad es conocer las problemáticas derivadas de la comunicación entre el alumnado del primer ciclo de secundaria dentro del mundo virtual, así como mejorar la calidad de vida de las personas involucradas en dicha problemática.</p><p class="RESUMENCURSIVA">El diseño del proceso de investigación empleado es emergente y su metodología mixta. El curso y necesidades de la investigación nos llevaron a comenzar un proceso de investigación-acción participante, en la que el propio alumnado y sus familiares f…

"Osaatteko te uusavuttomat urvelot siellä yhtään mitään?" : Onnibussin Facebook-sivulla esiintyvien asiakaspalautteiden rakennepotentiaali

2018

Tässä tutkielmassa tarkastelen Onnibussin Facebook-sivuilla esiintyvien asiakaspalautteiden rakennetta muodostaen sille oman rakennepotentiaalimallin. Tutkimus on ajankohtainen, sillä asiakaspalautteita sosiaalisen median kontekstissa ei ole aiemmin tutkittu suomen kielen alalla. Tämä tutkielma antaa myös suuntaviivoja kysymykselle siitä, poikkeaako sosiaalisessa mediassa esiintyvä asiakaspalaute perinteisestä asiakaspalautteesta. Tutkimuskysymyksiäni ovat seuraavat kysymykset: 1.Mistä funktionaalisista rakenneosista asiakaspalaute koostuu? a. Mitkä rakenneosat ovat välttämättömiä? b. Mitkä rakenneosat ovat valinnaisia? c. Millaista säännönmukaisuutta rakenneosien järjestäytymisestä löytyy?…

High-Performance Lead-Acid Batteries Enabled by Pb and PbO2 Nanostructured Electrodes: Effect of Operating Temperature

2021

Lead-acid batteries are now widely used for energy storage, as result of an established and reliable technology. In the last decade, several studies have been carried out to improve the performance of this type of batteries, with the main objective to replace the conventional plates with innovative electrodes with improved stability, increased capacity and a larger active surface. Such studies ultimately aim to improve the kinetics of electrochemical conversion reactions at the electrode-solution interface and to guarantee a good electrical continuity during the repeated charge/discharge cycles. To achieve these objectives, our contribution focuses on the employment of nanostructured electr…