Search results for "Online"
showing 6 items of 4526 documents
Oscillatory periodic pattern dynamics in hyperbolic reaction-advection-diffusion models
2022
In this work we consider a quite general class of two-species hyperbolic reaction-advection-diffusion system with the main aim of elucidating the role played by inertial effects in the dynamics of oscillatory periodic patterns. To this aim, first, we use linear stability analysis techniques to deduce the conditions under which wave (or oscillatory Turing) instability takes place. Then, we apply multiple-scale weakly nonlinear analysis to determine the equation which rules the spatiotemporal evolution of pattern amplitude close to criticality. This investigation leads to a cubic complex Ginzburg-Landau (CCGL) equation which, owing to the functional dependence of the coefficients here involve…
Univariate and multivariate properties of wind velocity time series
2009
We analyze the time series of hourly average wind speeds measured at 29 different stations located in Sicily, a region with a complex morphology. The investigation, performed from the univariate as well as the multivariate point of view, evidences that the statistical properties of wind at the single sites have features that are not reproduced by standard models and, thus, require specific modeling. Moreover, the synchronous evolution of wind velocity presents a cluster structure, obtained with different algorithms, that persists in the standard deviation too.
Exploring the collaborative synthesis of information during online reading
2019
Abstract This descriptive study sought to understand the complexities of integrative processing during collaborative online reading. Student pairs constructed a collaborative understanding while reading online information about a controversial issue by connecting, combining and organizing information that originated from prior knowledge, self-selected online texts, and discussions during an online inquiry task. Thirty-eight students from an upper secondary school in Finland worked in pairs to read online information and write an essay with the help of an argument graph tool. Primary data sources consisted of: prior knowledge; discussions; notes recorded with a graphic representational tool;…
Videoconferencing analytic psychodrama in treating young adults’ psychological suffering: preliminary results
2023
The study aims to explore the effects that videoconferencing Analytic Psychodrama (AP) has on the psychological wellbeing and emotional competence of young adults who are suffering from mental health problems. Twenty-two undergraduate students, asking for help at the Psychological Counselling Service of the University of Bologna for anxiety-depressive problems, took part in the three online groups that met weekly from October 2020 to July 2021. The Clinical Outcomes in Routine Evaluation Outcome Measure, the Trait Emotional Intelligence Questionnaire Short Form, the Toronto Alexithymia Scale, the Interpersonal Reactivity Index, and the Group Climate Questionnaire were used as test–retest qu…
Žargona un jauniešu valodas lietojums interneta ziņu rakstu komentāros
2017
Šajā darbā tiek pētīts žargona un jauniešu valodas lietojums interneta ziņu rakstu komentāros, kas ir publicēti sociālajā platformā facebook.com. Šī darba mērķis ir noskaidrot vai šo valodas slāņu lietojums var tikt uzskatīts par mehānismu, kas ļauj rakstītā tekstā paust emocijas, kuras komunicējot klātienē tiktu paustas caur mīmiku, žestiem un intonāciju. Pētījuma teorētiskajā daļā ir atrodams literatūras apraksts, tajā ir aprakstīts, kas ir žargons un kas jauniešu valoda, kādi valodas elementi tiem ir raksturīgi. Tāpat ir aprakstīta arī interneta vides ietekme uz valodas lietojumu un valodas funkcijas šajā kontekstā. Pētījuma empīriskajai daļā 291 komentārs tika analizēts izmantojot S. He…
Properties of zeros of solutions to third order nonlinear differential equations
2013
We investigate the behavior of zeros of solutions to the certain type of third order nonlinear differential equations. We show that the behavior of zeros may be rather different and depend on the nature of nonlinearity in the equation. Main results in the paper are illustrated with a number of examples.