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Teacher beliefs regarding learning, pedagogy, and the use of technology in higher education

technology education

Häkkinen P, Jääskelä P.
GSID: zCkOix1wrGcJ
P Jääskelä, P Häkkinen… - Journal of Research on …, 2017 - Taylor & Francis

This study examines university teachers' beliefs about the role of technology in achieving the pedagogical aims of learning within teaching development initiatives at a Finnish university …

TEL@ work: Toward integration of theory and practice

pedagogy

Häkkinen P, Tynjälä P.
GSID: Bn_Gigw6CUoJ
P Tynjälä, P Häkkinen… - British Journal of …, 2014 - Wiley Online Library

This paper examines technology‐enhanced learning at work in the context of the integrative pedagogy model. The basic idea behind this model is to create learning environments …

Embryonic Growth of Face-Center-Cubic Silver Nanoclusters Shaped in Nearly Perfect Half-Cubes and Cubes.

Journal of the American Chemical Society

Yang H, Yan J, Wang Y, Su H, Gell L, Zhao X, Xu C, Teo BK, Häkkinen H, Zheng N.
PMID: 27992210
J Am Chem Soc. 2017 Jan 11;139(1):31-34. doi: 10.1021/jacs.6b10053. Epub 2016 Dec 23.

Demonstrated herein are the preparation and crystallographic characterization of the family of fcc silver nanoclusters from Nichol's cube to Rubik's cube and beyond via ligand-control (thiolates and phosphines in this case). The basic building block is our previously reported...

Electronic structure and optical properties of the intrinsically chiral 16-electron superatom complex [Au20(PP3)4](4+).

The journal of physical chemistry. A

Knoppe S, Lehtovaara L, Häkkinen H.
PMID: 24856613
J Phys Chem A. 2014 Jun 12;118(23):4214-21. doi: 10.1021/jp5033959. Epub 2014 Jun 03.

The recently solved crystal structure of the [Au20(PP3)4]Cl4 cluster (PP3: tris(2-(diphenylphophino)ethyl)phosphine) is examined using density functional theory (DFT). The Au20 core of the cluster is intrinsically chiral by the arrangement of the Au atoms. This is in contrast to...

Carbon dioxide activation and reaction induced by electron transfer at an oxide-metal interface.

Angewandte Chemie (International ed. in English)

Calaza F, Stiehler C, Fujimori Y, Sterrer M, Beeg S, Ruiz-Oses M, Nilius N, Heyde M, Parviainen T, Honkala K, Häkkinen H, Freund HJ.
PMID: 26012347
Angew Chem Int Ed Engl. 2015 Oct 12;54(42):12484-7. doi: 10.1002/anie.201501420. Epub 2015 May 26.

A model system has been created to shuttle electrons through a metal-insulator-metal (MIM) structure to induce the formation of a CO2 anion radical from adsorbed gas-phase carbon dioxide that subsequently reacts to form an oxalate species. The process is...

Optical and electronic properties of graphene nanoribbons upon adsorption of ligand-protected aluminum clusters.

Physical chemistry chemical physics : PCCP

Gomes da Rocha C, Clayborne PA, Koskinen P, Häkkinen H.
PMID: 24413380
Phys Chem Chem Phys. 2014 Feb 28;16(8):3558-65. doi: 10.1039/c3cp53780c.

We have carried out first-principles calculations to investigate how the electronic and optical features of graphene nanoribbons are affected by the presence of atomic clusters. Aluminum clusters of different sizes and stabilized by organic ligands were deposited on graphene...

Light-induced structural changes in a monomeric bacteriophytochrome.

Structural dynamics (Melville, N.Y.)

Takala H, Niebling S, Berntsson O, Björling A, Lehtivuori H, Häkkänen H, Panman M, Gustavsson E, Hoernke M, Newby G, Zontone F, Wulff M, Menzel A, Ihalainen JA, Westenhoff S.
PMID: 27679804
Struct Dyn. 2016 Aug 29;3(5):054701. doi: 10.1063/1.4961911. eCollection 2016 Sep.

Phytochromes sense red light in plants and various microorganism. Light absorption causes structural changes within the protein, which alter its biochemical activity. Bacterial phytochromes are dimeric proteins, but the functional relevance of this arrangement remains unclear. Here, we use...

Experimental and Theoretical Determination of the Optical Gap of the Au144(SC2H4Ph)60 Cluster and the (Au/Ag)144(SC2H4Ph)60 Nanoalloys.

The journal of physical chemistry letters

Koivisto J, Malola S, Kumara C, Dass A, Häkkinen H, Pettersson M.
PMID: 26292253
J Phys Chem Lett. 2012 Oct 18;3(20):3076-80. doi: 10.1021/jz301261x. Epub 2012 Oct 09.

Au144PET60 and Au144-xAgxPET60 (PET = SC2H4Ph, phenylethylthiolate, and 30 ≤ x ≤ 53) clusters were studied by optical spectroscopy and linear response time-dependent density functional theory. Spectra of thin dry films were measured in order to reveal the onset...

Exploring the atomic structure of 1.8nm monolayer-protected gold clusters with aberration-corrected STEM.

Ultramicroscopy

Liu J, Jian N, Ornelas I, Pattison AJ, Lahtinen T, Salorinne K, Häkkinen H, Palmer RE.
PMID: 28342572
Ultramicroscopy. 2017 May;176:146-150. doi: 10.1016/j.ultramic.2016.11.021. Epub 2016 Nov 22.

Monolayer-protected (MP) Au clusters present attractive quantum systems with a range of potential applications e.g. in catalysis. Knowledge of the atomic structure is needed to obtain a full understanding of their intriguing physical and chemical properties. Here we employed...

Multi-centre comparison of five eye movement detection algorithms.

Journal of sleep research

Värri A, Kemp B, Rosa AC, Nielsen KD, Gade J, Penzel T, Hasan J, Hirvonen K, Häkkinen V, Kamphuisen HA, Mourtazaev MS.
PMID: 10607150
J Sleep Res. 1995 Jun;4(2):119-130.

Although various investigators have suggested algorithms for the automatic detection of eye movements during sleep, objective comparisons of the proposed methods have previously been difficult due to different recording arrangements of different investigators. In this study the results of...

Effects of dormancy and environmental factors on timing of bud burst in Betula pendula.

Tree physiology

Häkkinen R, Linkosalo T, Hari P.
PMID: 12651420
Tree Physiol. 1998 Oct;18(10):707-712. doi: 10.1093/treephys/18.10.707.

We tested three theories predicting the timing of bud burst in mature birch (Betula pendula Roth) trees utilizing a 60-year phenological time series together with meteorological temperature observations. Predictions of the timing of bud burst based on light conditions...

Evidence of superatom electronic shells in ligand-stabilized aluminum clusters.

The Journal of chemical physics

Clayborne PA, Lopez-Acevedo O, Whetten RL, Grönbeck H, Häkkinen H.
PMID: 21913777
J Chem Phys. 2011 Sep 07;135(9):094701. doi: 10.1063/1.3632087.

Ligand-stabilized aluminum clusters are investigated by density functional theory calculations. Analysis of Kohn-Sham molecular orbitals and projected density of states uncovers an electronic shell structure that adheres to the superatom complex model for ligand-stabilized aluminum clusters. In this current...

Showing 1 to 12 of 236 entries