Search results for "model."
showing 10 items of 23664 documents
Facing the music : a critical enquiry into 'the dodo-bird verdict' to develop music psychotherapy theory
2015
‘The dodo-bird verdict’ represents a boggling outcome of research that shows no significant difference between the outcomes of a variety of psychotherapy treatments. Not being able to scientifically discriminate between psychotherapeutic treatments, casts doubt on their theoretical underpinnings, and even on their efficacy. This in turn presents professionals who use psychotherapeutic techniques - including music therapists - with a conundrum: What can explain this inability? And what can be done to solve the problem? Conceptual research methods were used to analyse literature in order to answer these questions. Various weaknesses were identified, both in theory construction and in research…
Effects of training on bone metabolism in young athletes
2021
Purpose. This study investigated the effects of two types of training on the bone formation marker of osteocalcin and the bone resorption marker of tartrate-resistant acid phosphatase isoenzyme 5b (TRAP5b) in young track and field boys and girls. Methods. The 14-year-old group (10 boys, 10 girls) performed first time an intensive and supervised 8-week plyometric training. In the 17-year-old group (13 athletic boys, 6 control boys, 12 athletic girls, 6 control girls), the normal many-sided track and field training lasted 6 months. Results. Significant increases were noticed in osteocalcin (p < 0.01) both in younger boys and girls. The 20-m sprint performance improved in girls (p < 0.01) and …
A control strategy based on intelligent algorithm (PSO) to perform electrical stimulation systems
2017
International audience; Adjusting stimulation parameters using control strategy based on reliable mathematical model that can predict perfectly the muscle response, may improve the efficiency of Functional Electrical Stimulation (FES) systems. In the present project, we investigate the PID control tuning based on the Particle Swarm Optimization (PSO) algorithm at the first time in neuro-muscular systems for updating automatically the stimulation pulse amplitude to track a desired force profiles. In the beginning, The PSO algorithm is used to identify unknown force model parameters. Next, optimal PID gains are found by the same intelligent algorithm to improve the control system. The obtaine…
Estudio de validación de pulsioximetría como método diagnóstico no invasivo de atelectasias tras anestesia general
2017
Introducción. Las complicaciones pulmonares postoperatorias son una entidad muy frecuente tras una anestesia general, llegando a diagnosticarse hasta en el 20 % de los pacientes. Sin embargo, se piensa que este porcentaje está infraestimado debido a que se requieren técnicas de imagen para el diagnóstico y el uso de fracciones inspiratorias de oxígeno altas. Estas complicaciones, en concreto las atelectasias, disminuyen la presión arterial de oxígeno causando hipoxemia. Esto conlleva un aumento de la morbimortalidad de los pacientes, pudiendo reagudizar las patologías de base y favoreciendo la aparición de otras complicaciones. Por ello, es necesario determinar un método de diagnóstico senc…
Like ships passing in the night? Nonstandard work schedules and spousal satisfaction in Finland, the Netherlands and the United Kingdom
2020
This study examined the associations of work schedules and spousal satisfaction among Finnish (n = 347), Dutch (n = 304) and British (n = 337) parents. In addition to comparing parents with nonstandard schedule with parents in regular day work, the study examined separately the roles played in spousal satisfaction of morning, evening, night and weekend work and other working time-related variables (working hours, changes in and influence over one’s work schedules and spouse’s work schedule). The three-country data were analyzed using structural equation modeling with a multigroup procedure in Mplus. Little evidence for negative associations of work schedules and related factors with spousal…
Papildu funkciju izstrāde mašīnmācīšanās teksta analizatoram
2019
Teksta analīzes veikšanai ir pieejamas vairākas metodes, šajā dokumentā ir apskatīts kā pielietot Correlation Explanation[7] (korelāciju skaidrošana, turpmāk CorEx[7]) teksta analīzes metodi, implementējot atvērtā pirmkoda (open-source) bibliotēku corextopic[3], jau izstrādātā sistēmā - mašīnmācīšanās teksta analizatorā (turpmāk MMTA). Darbā ir aprakstīta MMTA pamatdarbība un tā mijiedarbība ar implementēto corextopic[3] bibliotēku. MMTA ir programmprodukts ar implementētām vairākām bibliotēkām, kas dod iespēju programmprodukta lietotājam izvēlēties starp vairākām datu apstrādes metodēm saistībā ar teksta analīzi. MMTA darbība iedalās. Informācijas ekstrakcija un tēmu modelēšana ir divi MMT…
Enhancing identification of causal effects by pruning
2018
Causal models communicate our assumptions about causes and effects in real-world phe- nomena. Often the interest lies in the identification of the effect of an action which means deriving an expression from the observed probability distribution for the interventional distribution resulting from the action. In many cases an identifiability algorithm may return a complicated expression that contains variables that are in fact unnecessary. In practice this can lead to additional computational burden and increased bias or inefficiency of estimates when dealing with measurement error or missing data. We present graphical criteria to detect variables which are redundant in identifying causal effe…
The development of Early Mathematical Skills – A Theoretical Framework for a Holistic Model
2019
This article presents a theoretical framework for a holistic model of the development of early mathematical skills in early childhood education. The first aim of this study was to conduct a comprehensive international review of the literature to explore early mathematical skills categories. The literature review yielded three early mathematical skills categories, namely (1) numerical skills, (2) spatial thinking skills and (3) mathematical thinking and reasoning skills. Previous studies have shown that several mathematical skills develop gradually and simultaneously in early ages and that these skills areas are interconnected in mathematical skills learning. Accordingly, the second aim of t…
Studentu augstākās izglītības mācību procesa analīze izmantojot Markova ķēdes
2020
Bakalaura darbā apskatīta Markova modeļu teorija ar absorbējošiem stāvokļiem, ar mērķi šos modeļus pielietot izglītības datu analīzei. Tiek izmantoti Latvijas Universitātes Fizikas, Matemātikas un Optomerijas fakultātes studentu mācību ilguma dati par studentiem, kas fakultātē iestājušies no 2006.gada līdz 2016.gadam. Tika pielāgoti fakultātes programmām atbilstoši Markova modeļi, ar kuru palīdzību analizēts studentu mācību progress, aprēķināts, cik liela daļa studentu pabeidz studijas. Tika veikti secinājumi, kādi ir lielākie šķēršļi absolvēt un ko studiju organizēšanā varētu uzlabot.
Persuasive elements in communication of Ministry of Health and Health minister on social media platforms "Facebook", "Twitter" and "Instagram" about …
2022
Bakalaura darba "Pārliecināšanas elementi Veselības ministrijas un veselības ministra komunikācijā par vakcināciju sociālo mediju platformās ''Facebook'', ''Twitter'' un ''Instagram'' (2021.gada jūlijs - oktobris)'' mērķis ir analizēt Veselības ministrijas un veselības ministra Daniela Pavļuta komunikāciju par vakcināciju sociālo mediju platformās Facebook, Twitter un Instagram, izmantojot Informācijas apstrādes varbūtības modeli (ELM). Darba teorētiskajā daļā apskatīta politiskās komunikācijas, sociālo mediju, pārliecināšanas komunikācijas un veselības komunikācijas jēdzieni. Metodoloģiskajā daļā apskatīta daļēji strukturētā intervija, kontentanalīze un anketēšanas metode. Rezultātā ir nos…