Search results for "mittausmenetelmät"

Precision mass measurements of neutron-rich nuclides around A = 100

2007

Reliability of transcranial magnetic stimulation and H-reflex measurement during balance perturbation tasks

2022

Following ankle movement, posterior balance perturbation evokes short- (SLR ∼30–50 ms), medium- (MLR ∼50–60 ms), and long-latency responses (LLR ∼70–90 ms) in soleus muscle before voluntary muscle contraction. Transcranial magnetic stimulation (TMS) and Hoffmann-reflex (H-reflex) measurements can provide insight into the contributions of corticospinal and spinal mechanisms to each response. Motor evoked potential (MEP) and H-reflex responses have shown good reliability in some dynamic muscle contraction tasks. However, it is still unclear how reliable these methods are in dynamic balance perturbation and corticospinal modulation during long amplitude balance perturbation tasks. 14 subjects …

Measurement Properties of Smartphone Approaches to Assess Physical Activity in Healthy Young People: Systematic Review

2022

Background Physical inactivity is a preventable risk factor for several chronic diseases and one of the driving forces behind the growing global burden of disease. Recent evidence has shown that interventions using mobile smartphone apps can promote a significant increase in physical activity (PA) levels. However, the accuracy and reliability of using apps is unknown. Objective The aim of our review was to determine the accuracy and reliability of using mobile apps to measure PA levels in young people. We conducted a systematic review guided by PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). Methods Studies published from 2007 to 2020 were sourced from 8 databa…

isotracer: An R package for the analysis of tracer addition experiments

2022

Tracer addition experiments, particularly using isotopic tracers, are becoming increasingly important in a variety of studies aiming at characterizing the flows of molecules or nutrients at different levels of biological organization, from the cellular and tissue levels, to the organismal and ecosystem levels. However, performing rigorous statistical analyses to gain reliable quantitative insights from these experiments often remains challenging. We present an approach based on Hidden Markov Models (HMM) to estimate nutrient flow parameters across a network, and its implementation in the R package isotracer. The isotracer package is capable of handling a variety of tracer study designs, inc…

Developing a Method for Measuring Science and Technology Oriented Creativity (STOC)

2021

Abstract The article contains the results of a research within the STIMEY (Science, Technology, Innovation, Mathematics, Engineering for the Young) project funded by the European Union’s Horizon-2020 research and innovation program (2016-2021). In the project, a hybrid learning environment (LE) was developed for both on-site and online learning suitable for the learning conditions in the COVID-19 era and beyond. The purpose of the research segment presented in this paper was to develop an instrument for assessment of the learner’s progress in creativity as one of the key targets of STIMEY. COVID-19 has shown that creativity is also needed to allow education systems the flexibility for unexp…

How can learning experiences be explored in simulation-based learning situations?

2022

The aim of our research is to investigate what methods can be used to explore learning experiences. In this case example, we describe how we extracted quantitative and qualitative data reflecting learning experiences from simulation-based learning (SBL) situations. Data collection was conducted in the fields of aviation and forestry. After the SBL situation, the students participated in a stimulated recall interview. The transcribed interview data were analysed using data-driven methods. To capture the dynamics in the (neuro)physiological signals associated with varying states of learning experiences, we recorded activity of the autonomic and central nervous systems. When analysing (neuro)p…

Mittaus- ja laskentamenetelmä dokumentinhallinnan työvälineenä opettajan työssä

2016

Opettajan työ on viestimistä osana sitä organisaatiota, missä hän työskentelee. Organisaatioiden viestintä muodostuu niiden sisällä sovittujen periaatteiden mukaan. Ulkopuolelta tulevat vaikutteet muokkaavat myös viestintää, mutta jo-kainen organisaatio rakentaa oman kielensä, jolla se viestii sisäisesti ja toisten or-ganisaatioiden kanssa. Tämän viestinnän yhteydessä syntyy tunnistettavia vies-tintäkategorioita, joita kutsutaan genreiksi eli lajityypeiksi. Liittämällä lajityyp-peihin niihin kuuluva sosiaalinen konteksti sitoutuvat lajityypit organisaation toimintaa. Analysoimalla organisaation viestintään kuuluvia lajityyppejä voi-daan tutkia organisaation prosesseja, näissä prosesseissa l…

Measuring Internet Gaming Disorder and Gaming Disorder : A Qualitative Content Validity Analysis of Validated Scales

2021

Numerous instruments have been developed to measure gaming-related health problems based on “internet gaming disorder” (IGD) in the third section of the Diagnostic and Statistical Manual of Mental Disorders (5th ed.) and “gaming disorder” (GD) in the International Classification of Diseases (11th rev.). However, the criteria in the manuals tend to be operationalized in numerous diverse ways, which can make screening outcomes incomparable. A content validity analysis is needed to reassess the relationships between the diagnostic criteria and the items that operationalize them. The IGD and GD criteria were divided into sematic components. A qualitative content validity analysis was carried ou…

Nuclear Data and Experiments for Astrophysics

2022

Nuclear astrophysics aims to understand the origin of elements and the role of nuclear processes in astrophysical events. Nuclear reactions and reaction rates depend strongly on nuclear properties and on the astrophysical environment. Nuclear inputs for stellar reaction rates involve a variety of nuclear properties, theoretical models, and experimental data. Experiments providing data for nuclear astrophysics range from stable ion beam direct measurements to radioactive beam experiments employing inverse kinematics or indirect methods. Many properties relevant for astrophysical calculations, such as nuclear masses and β-decays, have also been intensively studied. This contribution shortly i…

Reliability and Sensitivity of Nocturnal Heart Rate and Heart-Rate Variability in Monitoring Individual Responses to Training Load

2022

Purpose: To assess the reliability of nocturnal heart rate (HR) and HR variability (HRV) and to analyze the sensitivity of these markers to maximal endurance exercise. Methods: Recreational runners recorded nocturnal HR and HRV on nights after 2 identical low-intensity training sessions (n = 15) and on nights before and after a 3000-m running test (n = 23). Average HR, the natural logarithm of the root mean square of successive differences (LnRMSSD), and the natural logarithm of the high-frequency power (LnHF) were analyzed from a full night (FULL), a 4-hour (4H) segment starting 30 minutes after going to sleep, and morning value (MOR) based on the endpoint of the linear fit through all 5-m…