Search results for "IPA"
showing 10 items of 5795 documents
Hands-on or Video-based Learning with ANTicipation? A Comparative Approach to Identifying Student Motivation and Learning Enjoyment During a Lesson a…
2015
The observation of living animals in school laboratories provides authentic views of biological research. Various studies stress the importance of primary experiences in biology classes. However, educational films may serve as an alternative in some cases. The aim of this study was to investigate student motivation before and after treatments, including (1) an educational film, (2) a hands-on activity with living animals accompanied by an educational film and (3) a hands-on activity with living animals. We investigated the influence of teaching method, gender and class level on student motivation and learning enjoyment. In all treatments, Temnothorax ants were addressed, which can be easily…
«Student Voice» per la valorizzazione delle risorse personali
2017
Negli ultimi dieci anni, un nuovo movimento di opinione in campo educativo si è diffuso in Italia per stimolare i responsabili delle politiche educative e gli insegnanti di ogni ordine e grado dell’istruzione ad ascoltare attentamente le voci, nonché i bisogni e gli interessi di tutti gli studenti. Si tratta del movimento «Student Voice», nato negli anni Novanta nel Regno Unito e diffusosi in alcuni Paesi di area anglofona (USA, Canada, Australia). Questo movimento sostiene la partecipazione attiva e responsabile di tutti gli studenti ai processi formativi che si attivano nelle scuole e nelle università: nello specifico, questa partecipazione si esplica nella didattica in aula, nelle ricerc…
Evolutionary analysis of G-proteins in early metazoans: Cloning of α- and β-subunits from the sponge Geodia cydonium1The sequences reported here have…
1998
G-protein-coupled (seven-transmembrane segment)-receptors represent a major group of metazoan receptors, involved in transduction of extracellular signals. The G-proteins, which are made up of Galpha/beta/gamma-subunits, link the receptors to the effector system(s). To analyze the phylogenetic relationships among the metazoan alpha-subunits of G-proteins, cDNAs of alpha-subunits were isolated from Geodia cydonium, a marine sponge belonging to the lowest metazoan phylum, Porifera. One encodes a putative isotype of a stimulator of the adenylyl cyclase (Galpha s), another one a putative inhibitor of the adenylyl cyclase (Galpha i/o) and the third one a putative activator of phospholipase C (Ga…
Sequencing and analysis of the gene encoding the α-toxin of Clostridium novyi proves its homology to toxins A and B of Clostridium difficile
1995
A library of total Clostridium novyi DNA was established and screened for the alpha-toxin gene (tcn alpha) by hybridization with oligonucleotides derived from a partial N-terminal sequence and by using specific antisera. Overlapping subgenic tcn alpha fragments were isolated and subsequently the total sequence of tcn alpha was determined. The 6534 nucleotide open reading frame encodes a polypeptide of M(r) 250,166 and pI 5.9. The N-terminal alpha-toxin (Tcn alpha) sequence MLITREQLMKIASIP determined by Edman degradation confirmed the identity of the reading frame and the assignment of the translation start point. The toxin is not modified posttranslationally at its N-terminus nor does it co…
The on-line curvilinear component analysis (onCCA) for real-time data reduction
2015
Real time pattern recognition applications often deal with high dimensional data, which require a data reduction step which is only performed offline. However, this loses the possibility of adaption to a changing environment. This is also true for other applications different from pattern recognition, like data visualization for input inspection. Only linear projections, like the principal component analysis, can work in real time by using iterative algorithms while all known nonlinear techniques cannot be implemented in such a way and actually always work on the whole database at each epoch. Among these nonlinear tools, the Curvilinear Component Analysis (CCA), which is a non-convex techni…
Dimensionality reduction via regression on hyperspectral infrared sounding data
2014
This paper introduces a new method for dimensionality reduction via regression (DRR). The method generalizes Principal Component Analysis (PCA) in such a way that reduces the variance of the PCA scores. In order to do so, DRR relies on a deflationary process in which a non-linear regression reduces the redundancy between the PC scores. Unlike other nonlinear dimensionality reduction methods, DRR is easy to apply, it has out-of-sample extension, it is invertible, and the learned transformation is volume-preserving. These properties make the method useful for a wide range of applications, especially in very high dimensional data in general, and for hyperspectral image processing in particular…
Building Bridges Between User and Designer: Co-creation, Immersion and Perspective Taking
2016
Designing for users rather than with users is still a common practice in technology design and innovation as opposed to taking them on board in the process. Design for inclusion aims to define and understand end-users, their needs, context of use, and, by doing so, ensure that end-users are catered for and included, while the results are geared towards universality of use. We describe the central role of end-user and designer participation, immersion and perspective to build user-driven solutions. These approaches provided a critical understanding of the counterpart role. Designer(s) could understand what the user’s needs were, experience physical impairments, and see from other’s perspecti…
Social Participation Through Volunteering as Co-production of Public Services: Case Study of Latvia
2016
Active civic and social participation is considered to be significantly important for a country`s development in democratic societies. One of the popular forms of active citizenship is volunteering – the third economy sector that produces civic goods and/or services in which the public and private sectors are weak or inactive. In this aspect, volunteering is also a means for organized civil society to participate in the production of public services i.e. co-production. The aim of this research is the exploration of social participation in Latvia through volunteering, including its legal regulation and organizational setup, and identification of the aspects and prospects of volunteering in L…
Active spike transmission in the neuron model with a winding threshold manifold
2012
International audience; We analyze spiking responses of excitable neuron model with a winding threshold manifold on a pulse stimulation. The model is stimulated with external pulse stimuli and can generate nonlinear integrate-and-fire and resonant responses typical for excitable neuronal cells (all-or-none). In addition we show that for certain parameter range there is a possibility to trigger a spiking sequence with a finite number of spikes (a spiking message) in the response on a short stimulus pulse. So active transformation of N incoming pulses to M (with M>N) outgoing spikes is possible. At the level of single neuron computations such property can provide an active "spike source" comp…
The Case of Gabriel: A Linguistic Therapy of Evaluation Perspective
2010
This article describes the treatment of Gabriel, 24, an undergraduate student suffering from performance anxiety. His main symptoms were heart palpitations, aching muscles, inability to relax, nervousness, worry, and negative anticipation about performance in various classes. The treatment applied was 13 sessions of linguistic therapy of evaluation (LTE), a variety of cognitive therapy based on the theory of general semantics. The main therapeutic techniques involved emphasizing the difference between words and “facts” (the “map” and the “territory”), general semantics debate, and the focusing on orders of abstraction. Across treatment Gabriel showed a clear shift from an intensional orient…