Search results for "Functions"

Participant characteristics associated with the effects of a physical and cognitive training program on executive functions

2022

Background: Physical and cognitive interventions have been shown to induce positive effects on older adults’ executive functioning. However, since participants with different background characteristics may respond differently to such interventions, we investigated whether training effects on executive functions were associated with sex, training compliance, and age. We also investigated if change in global cognition was associated with physical and cognitive training intervention-induced changes in executive functions. Methods: Exploratory data from a randomized controlled trial were analyzed. Participants were 70–85-year-old men and women who received a 12-month physical (PT) or physical a…

A single bout of physical exercise does not affect young adults’ executive functions

2020

Summary Study aim. The purpose of the current study is to determine the impact of single bouts of physical exercise of different duration and intensity on young adults’ executive functions. Material and methods. The study employed 81 participants (37 females, 44 males) ranging between 19 and 39 years (mean age: 24.6 ± 4.08 years; mean height: 168 ± 9.67 cm; mean weight: 67.2 ± 13.0 kg). The executive functions were assessed through the Stroop task, the Tower of London test, and the Corsi block test. Participants were randomly assigned to one of the three experimental conditions (30-second Wingate test condition, an incremental intensity exercise test, and a submaximal constant-intensity tes…

Dažādības pedagoģiskie risinājumi saistībā ar autisma spektra traucējumiem bilingvālajā vidē: gadījuma analīze

2017

Maģistra darbs koncentrējas uz dažādu attīstības un lingvistisko īpatnību jautājumu iekļaujošās izglītības vidē. Pētījums fokusēts uz 14 gadus veca zēna, kuram kā diagnoze noteikti autiskā spektra traucējumi (Aspergera sindroms) un kurš ir audzis un ticis izglītots bilingvālā vidē. Galvenais mērķis bija izpētīt bilingvālisma un Aspergera sindroma kognitīvos un uzvedības aspektus pamatfunkciju izpildē. Pētījumā izmantota paralēlā jauktā metode – trīs dažādi standartizēti testi papildus trim daļēji strukturētām intervijām. Pētījuma mērķis bija parādīt bilingvālās vides ietekmi uz kognitīvajām funkcijām un sociālo uzvedību bērnam ar Autiskā spektra traucējumiem (konkrētāk, Aspergera sindromu) …

On some bifurcation analysis techniques for continuous systems

2016

This paper is devoted to techniques in bifurcation analysis for continuous mechanical systems, concentrating on polynomial equations and implicitly given functions. These are often encountered in problems of mechanics and especially in stability analysis. Taking a classical approach, we summarize the relevant features of the cubic polynomial equation, and present some new aspects for asymptotics and parametric representation of the solutions. This is followed by a brief look into the implicit function theorem as a tool for analyzing bifurcations. As an example from mechanics, we consider bifurcations in the transverse free vibration problem of an axially compressed beam. peerReviewed

The identity of the borderland : what monuments of the Opole region tell about : a report on pilot studies

2013

The conjoint conceptualization and negotiation of national cultures : qualitative study of discursive culture-concepts, their function and their rela…

2015

The study of stereotypes and stereotyping is as complex and multi-facetted as the social phenomenon itself. From being seen as an erroneous and over-generalizing image in the mind of individuals, to the current perspective that stereotypes have an individual and a social level, are shaped by long-term and short-term contextual factors, and are used for certain purposes, managed and negotiated, stereotypes have been acknowledged as a topic which cannot be studied within one academic discipline alone. This study looks into stereotype use and management during in-group discourse about other national cultures. The data consists of three focus groups consisting of Finnish students who talk about…

Data-Driven Evolutionary Optimization: An Overview and Case Studies

2019

Most evolutionary optimization algorithms assume that the evaluation of the objective and constraint functions is straightforward. In solving many real-world optimization problems, however, such objective functions may not exist, instead computationally expensive numerical simulations or costly physical experiments must be performed for fitness evaluations. In more extreme cases, only historical data are available for performing optimization and no new data can be generated during optimization. Solving evolutionary optimization problems driven by data collected in simulations, physical experiments, production processes, or daily life are termed data-driven evolutionary optimization. In this…

Semantic inhibition and dementia severity in Alzheimer’s disease

2019

Semantic inhibition is often found to be impaired in Alzheimer’s disease (AD). The sentence completion task (Hayling test) was used to investigate whether it would be useful for differentiating mild AD from moderate AD. Method: Latency responses and error scores in the automatic and inhibition parts of the test were registered in these two groups of patients and in a group of healthy older participants. The types of errors were also analysed. Group differences were analysed by ANOVA. In addition, relationships with other neuropsychological tests were reported. Results: Participants with moderate AD performed worse than controls in both the automatic and inhibition sections, whereas particip…

Estudio de funciones con geogebra

2012

Nuestra investigación, “Estudio de funciones con GeoGebra”, se ha desarrollado en el “Máster Universitario en Profesor de Educación Secundaria” de la Universitat de València. El estudio se centra en cómo alcanzar una correcta comprensión de los conceptos referidos a funciones haciendo uso del GeoGebra. El problema que motiva esta investigación radica en que, en los cursos tradicionales de 2º de Bachillerato, cantidades significativas de estudiantes no logran comprender los conceptos básicos de funciones, en particular, la tasa de variación media, derivada, monotonía, extremos y concavidad. El proyecto tiene como objetivo hacer una propuesta de trabajo basada en la utilización de GeoGebra, d…

Monotonicity Formulas for Harmonic Functions in RCD(0,N) Spaces

2023

We generalize to the RCD(0,N) setting a family of monotonicity formulas by Colding and Minicozzi for positive harmonic functions in Riemannian manifolds with nonnegative Ricci curvature. Rigidity and almost rigidity statements are also proven, the second appearing to be new even in the smooth setting. Motivated by the recent work in Agostiniani et al. (Invent. Math. 222(3):1033–1101, 2020), we also introduce the notion of electrostatic potential in RCD spaces, which also satisfies our monotonicity formulas. Our arguments are mainly based on new estimates for harmonic functions in RCD(K,N) spaces and on a new functional version of the ‘(almost) outer volume cone implies (almost) outer metric…