Search results for "Continuous"
showing 10 items of 899 documents
Can noncomplementarity of agency lead to successful problem solving? A case study on students’ interpersonal behaviors in mathematical problem-solvin…
2022
In student collaboration, purposeful peer interaction crucial for success on the task. Such collaboration requires adequate and purposeful student agency. Theoretically, the between-individual complementarity of agency be-haviors enhances purposeful interaction. However, the level of agency of group members can disrupt the collaborative interactions. We conducted a case study of collaborative mathematical problem solving, where one student's behaviors of noncomplementary agency characterized the group interaction. We examined the video recording of the group by continuous quantitative coding of students' agency behaviors and segmented the interaction process into four phases. We analyzed qu…
Analiza anatomiczna drewna reliktowej sosny zwyczajnej z Sokolicy
2021
The work describes anatomical analysis of the wood from a relict Pinus sylvestris L. performed to determine its characteristics. Transverse ca. 20 μm thick sections were prepared with a core-microtome and observed in bright-field microscopy. Observations of tangential sections were performed in epi-fluorescence. The xylem of the relict pine showed many narrow growth rings. The occurrence of i.a. discontinuous tree rings, light rings and intraannual density fluctuations was stated. It can be expected that specific properties of the wood of the studied pine are the result of harsh growing conditions – limited water availability at the top of Sokolica. In addition, a wide range of factors affe…
Difficult but Valuable! Learning in Student-centered Assessment Feedback Practices in Higher Education
2022
Aims: The aim of this study is to fill a gap in research on students' experiences of learning in student-centered assessment feedback practices. The article examines what students tell us about their learning in the context of student-centered feedback practices in higher education during online learning.
 Study Design: The study was conducted as a qualitative online survey among Finnish university students (N=35). The relationship between learning and assessment was explored in the context of formative and summative assessment practices during an online learning environment. The data was analysed using a discursive approach.
 Place and Duration of Study: The research was conducte…
OpenDigi toimintamallin käsikirja : opettajat oppimistaitojen ja digipedagogiikan kehittäjäyhteisöissä
2020
Yhteiskunnallisen muutoksen kiihtyessä on muuttuneisiin osaamistarpeisiin reagoitava myös koulutuksessa. Uudeksi kansalaistaidoksi ja ammatillisen osaamisen ytimeksi on nousemassa kyky uudistua ja sopeutua jat-kuvaan muutokseen. Suomalaisen koulutuksen laatu nojaa vahvasti akateemiseen opettajankoulutukseen. Yh-teiskunnallinen kehitys haastaa opettajankoulutusta ja kouluja tukemaan entistä vahvemmin ihmisten aktiivista roolia muutoksen tekijöinä ja siihen sopeutujina. Tutkintojen suorittamisen lisäksi koulutusjärjestelmän tulee antaa parempia valmiuksia aktiiviseen oppimiseen. Tämä edellyttää uudistumista koulutuksen kaikilla tasoilla. Koulutuksen muutos edellyttää oppilaitoksissa toimivien…
MODELLING AND SIMULATING RISKS IN THE TRAINING OF THE HUMAN RESOURCES BY APPLYING THE CHAOS THEORY
2012
The article approaches the modelling and simulation of risks in the training of the human resources, as well as the forecast of the degree of human resources training impacted by risks by applying the mathematical tools offered by the Chaos Theory and mathematical statistics. We will highlight that the level of knowledge, skills and abilities of the human resources from an organization are autocorrelated in time and they depend on the level of a previous moment of the training, as well as on the impact of the risk factors that can materialize in the process of the continuous training of human resources. The process of self-correlation and continuous training ensures the sustainable and qual…
Complex dynamics, hidden attractors and continuous approximation of a fractional-order hyperchaotic PWC system
2018
In this paper, a continuous approximation to studying a class of PWC systems of fractionalorder is presented. Some known results of set-valued analysis and differential inclusions are utilized. The example of a hyperchaotic PWC system of fractional order is analyzed. It is found that without equilibria, the system has hidden attractors.
Existence and classification of critical points for nondifferentiable functions
2004
A general min-max principle established by Ghoussoub is extended to the case of functionals which are the sum of a locally Lipschitz continuous term and of a convex, proper, lower semicontinuous function. Some topological properties of the min-max-generated critical points in such a framework are then pointed out.
Noninvasive Ventilation in Critically Ill Patients
2015
Since its first application in the late 1980s, noninvasive ventilation (NIV) has been the first-line intervention for certain forms of acute respiratory failure. NIV may be delivered through the patient's mouth, nose, or both using noninvasive intermittent positive pressure ventilation or continuous positive airway pressure. When applied appropriately, NIV may reduce morbidity and mortality and may avert iatrogenic complications and infections associated with invasive mechanical ventilation. This article provides physicians and respiratory therapists with a comprehensive, practical guideline for using NIV in critical care. © 2015 Elsevier Inc.
A coupled discontinuous Galerkin-Finite Volume framework for solving gas dynamics over embedded geometries
2021
Author(s): Gulizzi, Vincenzo; Almgren, Ann S; Bell, John B | Abstract: We present a computational framework for solving the equations of inviscid gas dynamics using structured grids with embedded geometries. The novelty of the proposed approach is the use of high-order discontinuous Galerkin (dG) schemes and a shock-capturing Finite Volume (FV) scheme coupled via an $hp$ adaptive mesh refinement ($hp$-AMR) strategy that offers high-order accurate resolution of the embedded geometries. The $hp$-AMR strategy is based on a multi-level block-structured domain partition in which each level is represented by block-structured Cartesian grids and the embedded geometry is represented implicitly by a…
Implicit regulation for automotive variators
2001
A well-known practice uses mechanical variators to realize the so-called continuously variable transmissions (CVTs) for automotive application. A remarkable problem for one of the most used CVTs is given by the hydraulic control of the axial thrust on the half-pulleys that is necessary for torque transmission. It involves a heavy decrease in transmission efficiency. In the present paper, the possible production of the required axial thrust by a simple spring to eliminate hydraulic losses is analysed. It is shown that the power capacity of such a regulated variator is near to the maximum possible, and the belt torque loss is always considerably lower than the sum of the belt and pump losses…