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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Spolupráce níkoprahových zařízení pro děti a mládež s orgány sociálně-právní ochrany dětí / Cooperation of low-threshold facilities for children and youth with institutions of social and legal protection of the child

Sládek, Václav Samuel January 2021 (has links)
The master thesis deals with the topic of cooperation between low-threshold facilities for children and youth (NDZM), and the authorities of the social and legal protection of children (OSPOD). To obtain the results, one objective was set: 'To identify the forms of cooperation and non-cooperation of the low-threshold facilities for children and youth with the authorities of the social and legal protection of children.' The theoretical part consists of four chapters that describe general information about the NDZM and OSPOD, the term of at-risk youth, and the possibilities of cooperation between the two above-mentioned entities. The empirical part of the thesis presents the results of structured and semi-structured interviews with NDZM and OSPOD staff from the South Bohemian Region and the capital city of Prague. A total number of 31 workers from the South Bohemian Region (15 NZDM; 16 OSPOD) and 26 workers from Prague (13 NDZM; 13 OSPOD) participated in the interviews. For the final results, the interviews were annotated and analysed with the use of contrast and comparison techniques. The conducted research offers perspectives on cooperation and non-cooperation between the entities through the eyes of NZDM and OSPOD workers from the South Bohemia Region and the capital city of Prague. The results...
22

Restaurace signálu s omezenou okamžitou hodnotou s použitím psychoakustického modelu / Restoration of signals with limited instantaneous value using a psychoacoustic model

Beňo, Tomáš January 2019 (has links)
The master's thesis deals with the restoration of audio signals that have been damaged by clipping. Used methods are based on sparse representations of signals. The introduction of the thesis explains the issue of clipping and mentions the list of already existing methods that solve declipping, which are followed by the thesis. In the next chapter, the necessary theory of sparse representations and the proximal algorithms is described, including specific representatives from the category of convex optimization problems. The thesis contains declipping algorithm implemented in Matlab software environment. Chosen method for solving the task uses the Condat algorithm or Generic proximal algorithm for convex optimization and solves minimization of sum of three convex functions. The result of the thesis is five versions of algorithm and three of them have implemented psychoacoustic model for results improvement. For each version has been found optimal setting of parameters. The restoration quality results are evaluated using objective measurements like SDR and PEMO-Q and also using subjective listening test.
23

Vliv foam rollingu na mechano-nociceptivní a vibrotaktilní čití / Effect of foam rolling on mechano-nociceptive and vibrational sensation.

Novotná, Eliška January 2019 (has links)
The thesis deals with the evaluation of the influence of foam rolling on selected parameters of somatosensory perception (pressure-algic threshold, vibrotactile sensation). The theoretical part discusses fascial tissue, summarizes the current knowledge of foam rolling and focuses on the mechanisms of pain and vibrotactile sensation. The research part consists of a randomized blind study on a group of 15 healthy probands (11 women, 4 men), which evaluates the effect of foam rolling. The effect is objectivized by pressure algometry and vibrametry on the m. rectus femoris and m. biceps femoris of both lower limbs (measured before and after therapy). The value of the pressure pain threshold (PPT) increased after foam rolling. Vibrotactile threshold (VT) was lower after foam rolling than before its use, which means that vibrotactile sensitivity was increased. The results show that these changes do not occur only in the interventioned m. rectus femoris, but some changes in parameters can be found in other muscles as well. Keywords fascial tissues, foam rolling, pressure algometry, pressure pain treshold, PPT, vibrametry, somatosensory system, nociception, diffuse noxious inhibitory control, DNIC
24

Comparaison entre deux stratégies transfusionnellles en postopératoire de chirurgie cardiaque pédiatrique

Willems, Ariane 08 1900 (has links)
L’anémie est fréquente chez les patients pédiatriques en postopératoire de chirurgie cardiaque. Malgré le nombre important de patients transfusés, le taux d’hémoglobine (Hb) pour lequel les bénéfices surpassent les risques est inconnu chez ces patients. Récemment, Lacroix et al. ont démontré qu’une stratégie transfusionnelle restrictive n’était pas inférieure à une stratégie libérale en ce qui concerne le développement ou la progression du syndrome de défaillance multiviscérale (SDMV) et la mortalité chez les patients de soins intensifs pédiatriques (SIP).Devant le manque d’évidence, une analyse de sous-groupes des patients en postopératoire de chirurgie cardiaque de l’étude Transfusion Requirements in Pediatric Intensive Care (TRIPICU) a été réalisée. L’objectif de cette étude était de déterminer l’impact d’une stratégie transfusionnelle restrictive comparée à une stratégie libérale sur l’acquisition ou l’aggravation du syndrome de défaillance multiviscérale (SDMV) chez les enfants en postopératoire de chirurgie cardiaque. Cette étude n’a pas démontré de différences statistiquement, ni cliniquement significatives du nombre de patients ayant acquis ou aggravés un SDMV, ni des issues secondaires entre les stratégies transfusionnelles restrictive et libérale. L’analyse de sous-groupes permet de générer une hypothèse de recherche et les résultats devraient être confirmés par un essai randomisé contrôlé. / Anemia is frequent in pediatric patients following cardiac surgery. Despite frequent transfusions, the optimal hemoglobin threshold where benefits surpass risks is still unknown for these patients. Recently, Lacroix et al. showed that a restrictive transfusion strategy was not inferior to a liberal strategy concerning the development or progression of multiple organ dysfunction syndrome (MODS) and mortality in pediatric intensive care patients. In the absence of evidence, the aim of this study was to determine the impact of a restrictive versus a liberal transfusion strategy on new or progressive multiple organ dysfunction syndrome (MODS) in children following cardiac surgery. We conducted a subgroup analysis of the postoperative cardiac surgery patients of the Transfusion Requirements in Pediatric Intensive Care Unit (TRIPICU) study. Our study showed no statistically and clinically significant differences in the number of patients who acquired or worsened MODS, nor secondary outcomes between a restrictive and a liberal transfusion strategy. This subgroup analysis generates a research hypothesis that should be confirmed by a randomized controlled trial.
25

Comparaison entre deux stratégies transfusionnelles en postopératoire de chirurgie cardiaque pédiatrique

Willems, Ariane 08 1900 (has links)
L’anémie est fréquente chez les patients pédiatriques en postopératoire de chirurgie cardiaque. Malgré le nombre important de patients transfusés, le taux d’hémoglobine (Hb) pour lequel les bénéfices surpassent les risques est inconnu chez ces patients. Récemment, Lacroix et al. ont démontré qu’une stratégie transfusionnelle restrictive n’était pas inférieure à une stratégie libérale en ce qui concerne le développement ou la progression du syndrome de défaillance multiviscérale (SDMV) et la mortalité chez les patients de soins intensifs pédiatriques (SIP).Devant le manque d’évidence, une analyse de sous-groupes des patients en postopératoire de chirurgie cardiaque de l’étude Transfusion Requirements in Pediatric Intensive Care (TRIPICU) a été réalisée. L’objectif de cette étude était de déterminer l’impact d’une stratégie transfusionnelle restrictive comparée à une stratégie libérale sur l’acquisition ou l’aggravation du syndrome de défaillance multiviscérale (SDMV) chez les enfants en postopératoire de chirurgie cardiaque. Cette étude n’a pas démontré de différences statistiquement, ni cliniquement significatives du nombre de patients ayant acquis ou aggravés un SDMV, ni des issues secondaires entre les stratégies transfusionnelles restrictive et libérale. L’analyse de sous-groupes permet de générer une hypothèse de recherche et les résultats devraient être confirmés par un essai randomisé contrôlé. / Anemia is frequent in pediatric patients following cardiac surgery. Despite frequent transfusions, the optimal hemoglobin threshold where benefits surpass risks is still unknown for these patients. Recently, Lacroix et al. showed that a restrictive transfusion strategy was not inferior to a liberal strategy concerning the development or progression of multiple organ dysfunction syndrome (MODS) and mortality in pediatric intensive care patients. In the absence of evidence, the aim of this study was to determine the impact of a restrictive versus a liberal transfusion strategy on new or progressive multiple organ dysfunction syndrome (MODS) in children following cardiac surgery. We conducted a subgroup analysis of the postoperative cardiac surgery patients of the Transfusion Requirements in Pediatric Intensive Care Unit (TRIPICU) study. Our study showed no statistically and clinically significant differences in the number of patients who acquired or worsened MODS, nor secondary outcomes between a restrictive and a liberal transfusion strategy. This subgroup analysis generates a research hypothesis that should be confirmed by a randomized controlled trial.
26

Avaliação do tratamento da dor crônica em ombros de hemiplégicos com bloqueio transforaminal de C6: um estudo duplo cego randomizado sham-controlado / Transforaminal epidural steroid injection to treat hemiplegic shoulder pain: a randomized, double-blind, sham-controlled trial

Amadera, João Eduardo Daud 05 December 2013 (has links)
Objetivo: A taxa de falha terapêutica para dor crônica em ombros de hemiplégicos (DOH) pós acidente vascular encefálico (AVE) é significante. Diversas abordagens terapêuticas têm sido propostas, porém os resultados dos estudos que as têm investigado demostram resultados controversos. Objetivo: Elaborar um protocolo para avaliar a eficácia da injeção de dexametasona via transforaminal (TF) na DOH. Métodos: Ensaio clínico randomizado, controlado por placebo, com cegamento de pacientes e avaliadores de desfecho. Ambiente clínico: Departamento de Ortopedia e Neurocirurgia de um hospital terciário. Participantes: Pacientes (N = 38) com DOH refratária ao tratamento conservador e escore de dor em repouso superior a quatro centímetros na escala visual analógica de dor (EVA) de 0 a 10 centímetros. Intervenção: TF no nível C5-C6. Comparador: Intervenção sham. Medida de desfecho principal: Variação na EVA três meses após a intervenção. Seguimento: As avaliações foram realizadas imediatamente antes, uma semana após e três meses depois das intervenções. Resultados: TF com dexametasona reduziu significantemente a intensidade da dor quando comparado com o grupo sham (p < 0,001). Adicionalmente, a Medida de Independência Funcional, a algometria do músculo trapézio, a algometria dos dermátomos de C4 e C5 e a algometria dos ligamentos interespinhosos de C6-7 e C7-T1 melhoraram ao término do tratamento no grupo TF (p < 0,05). Não foram relatados efeitos colaterais significantes. Conclusões: TF com dexametasona demonstrou ser eficaz no alívio da dor no ombro em pacientes pós-AVE quando comparado com placebo. Ensaios clínicos maiores são necessários para confirmar esses achados / Objective: Because of the lack of effective treatment today for hemiplegic shoulder pain (HSP) we designed a protocol to evaluate the efficacy of transforaminal epidural dexamethasone injection (TFESI) in relieving it. Design: A randomized, blind, sham-controlled trial with assessments before and after TFESI. Setting: Orthopedics and Neurosurgery department of a tertiary hospital. Participants: Patients (N=38) with HSP refractory to standard treatments and pain score at rest greater than 4cm on a pain visual analog scale (VAS) of 0 to 10cm. Intervention: TFESI at the C5-6 level. Main Outcome Measure: Variation in VAS score 3 months after interventions. Methods: We performed a randomized, sham-controlled, double blind clinical trial in which 38 patients were randomized to receive TFESI (\"TFESI\" group) or sham (\"sham\" group). Assessments were performed immediately before, 1 week after and 3 months after by a blinded rater. Results: At baseline, groups did not differ regarding any of the outcome variables. After 3 months pain intensity was significantly better in the TFESI group as compared to Sham (p < 0.05). For the secondary outcome measures, the functional independency, the algometry of the trapezius muscle and at the C4 and at the C5 levels and the algometry of the ligment at the C6-7 and at the C7-T1 levels also improved after the TFESI treatment (p < 0.05). No side effects were found. Conclusions: TFESI is effective for pain relief and functional independency in patients with HSP. The results of this study suggest that TF has a superior effect compared with Sham intervention. Larger randomized controlled trials should be made to confirm efficacy of TFESI in patients with refractory HSP
27

Avaliação do tratamento da dor crônica em ombros de hemiplégicos com bloqueio transforaminal de C6: um estudo duplo cego randomizado sham-controlado / Transforaminal epidural steroid injection to treat hemiplegic shoulder pain: a randomized, double-blind, sham-controlled trial

João Eduardo Daud Amadera 05 December 2013 (has links)
Objetivo: A taxa de falha terapêutica para dor crônica em ombros de hemiplégicos (DOH) pós acidente vascular encefálico (AVE) é significante. Diversas abordagens terapêuticas têm sido propostas, porém os resultados dos estudos que as têm investigado demostram resultados controversos. Objetivo: Elaborar um protocolo para avaliar a eficácia da injeção de dexametasona via transforaminal (TF) na DOH. Métodos: Ensaio clínico randomizado, controlado por placebo, com cegamento de pacientes e avaliadores de desfecho. Ambiente clínico: Departamento de Ortopedia e Neurocirurgia de um hospital terciário. Participantes: Pacientes (N = 38) com DOH refratária ao tratamento conservador e escore de dor em repouso superior a quatro centímetros na escala visual analógica de dor (EVA) de 0 a 10 centímetros. Intervenção: TF no nível C5-C6. Comparador: Intervenção sham. Medida de desfecho principal: Variação na EVA três meses após a intervenção. Seguimento: As avaliações foram realizadas imediatamente antes, uma semana após e três meses depois das intervenções. Resultados: TF com dexametasona reduziu significantemente a intensidade da dor quando comparado com o grupo sham (p < 0,001). Adicionalmente, a Medida de Independência Funcional, a algometria do músculo trapézio, a algometria dos dermátomos de C4 e C5 e a algometria dos ligamentos interespinhosos de C6-7 e C7-T1 melhoraram ao término do tratamento no grupo TF (p < 0,05). Não foram relatados efeitos colaterais significantes. Conclusões: TF com dexametasona demonstrou ser eficaz no alívio da dor no ombro em pacientes pós-AVE quando comparado com placebo. Ensaios clínicos maiores são necessários para confirmar esses achados / Objective: Because of the lack of effective treatment today for hemiplegic shoulder pain (HSP) we designed a protocol to evaluate the efficacy of transforaminal epidural dexamethasone injection (TFESI) in relieving it. Design: A randomized, blind, sham-controlled trial with assessments before and after TFESI. Setting: Orthopedics and Neurosurgery department of a tertiary hospital. Participants: Patients (N=38) with HSP refractory to standard treatments and pain score at rest greater than 4cm on a pain visual analog scale (VAS) of 0 to 10cm. Intervention: TFESI at the C5-6 level. Main Outcome Measure: Variation in VAS score 3 months after interventions. Methods: We performed a randomized, sham-controlled, double blind clinical trial in which 38 patients were randomized to receive TFESI (\"TFESI\" group) or sham (\"sham\" group). Assessments were performed immediately before, 1 week after and 3 months after by a blinded rater. Results: At baseline, groups did not differ regarding any of the outcome variables. After 3 months pain intensity was significantly better in the TFESI group as compared to Sham (p < 0.05). For the secondary outcome measures, the functional independency, the algometry of the trapezius muscle and at the C4 and at the C5 levels and the algometry of the ligment at the C6-7 and at the C7-T1 levels also improved after the TFESI treatment (p < 0.05). No side effects were found. Conclusions: TFESI is effective for pain relief and functional independency in patients with HSP. The results of this study suggest that TF has a superior effect compared with Sham intervention. Larger randomized controlled trials should be made to confirm efficacy of TFESI in patients with refractory HSP
28

Six weeks of high intensity interval training with hyperoxia or normoxia in trained cyclists : A polarized and periodized training approach / Sex veckors högintensiv intervallträning med hyperoxi eller normoxi för tränade cyklister : En polariserad och periodiserad träningsmodell

Manselin, Tom, Södergård, Olof January 2015 (has links)
Aim The main aim of this study was to investigate the longitudinal effects on cycling performance using a polarized and periodized scheme that was highly supervised and controlled. The second aim was to investigate the effect of using Hyperoxia. The questions used to address the aim were: (1) How does overall performance change after a six-week training intervention? (2) What is the time-course and pattern of performance changes to the training scheme? (3) How does the performance change within the groups?   Method Nineteen male and female cyclists started the study (13 male and 6 female), however only 12 completed it (8 male and 4 female). The characteristics for the 12 subjects were:  age (year) 33.6 ± 6.8, height (cm) 177 ± 9.1, body mass (kg) 73.4 ± 8.8. Using a randomized, double blind design, the test subjects were divided in to hyperoxia (HOT) (n = 6) and normoxia (NOT) (n = 6) training groups.  Over a six week period the subjects followed a controlled polarized periodization that included 15 high intensity interval training (HIIT) sessions (3 x 8 min, 3 x 8 + 4 min, 4 x 8 min &amp; 4 x 4 min) on maximal sustainable intensity (isoeffort) on a cycle ergometer. The dosage of oxygen was administered intermittently by the oxelerate device. A 20 min all out test was performed as pre- and post test.    Results The whole group (n = 12) increased mean power output (W) by 6.4 % (P = 0.002). The relative power output (W/kg) increased significantly 8.2 % (P = 0.0011). The HOT group (n = 6) increased their power output by 8.3 % (P = 0.028) and their relative power output increased by 9.4 % (P=0.011). The whole group (P = 12) significantly increased their VO2mean by 4.1 % (P = 0.03) and in the relative value by 5.4 % (P = 0.01) on the 20 min all out test. The whole group also had a significant increase in VO2peak of 3.7 % (P = 0.04). A very strong correlation could be found between the training data and the performance test.   Conclusions The training intervention was favourable for increasing performance and VO2peak in cycling. Usage of hyperoxia during the training intervention increases the performance. / Syfte och frågeställningar Huvudsyftet med denna studie var att undersöka de longitudinella effekter på prestation i cykling med hjälp av ett polariserat och periodiserat träningsupplägg som var väl övervakat och kontrollerat. Det andra syftet var att undersöka effekten av att använda hyperoxi. De frågeställningar som hjälpte att besvara syftet var: (1) Hur förändras prestationen efter en sex veckors träningsintervention? (2) Hur anpassar sig försökspersonerna till träningsschemat över tid?  (3) Hur förändras prestationen inom grupperna?   Metod 19 manliga och kvinnliga cyklister deltog i studien (13 manliga och 6 kvinnliga), 12 fullföljde hela studien (8 manliga och 4 kvinnliga). Karaktäristiken för de 12 försökspersonerna var: ålder (år) 33.6 ± 6.8, längd (cm) 177 ± 9.1, vikt (kg) 73.4 ± 8.8. Försökspersonerna delades in i hyperoxi (HOT) (n = 6) och normoxi (NOT) (n = 6), studien var dubbelblind. Under sex veckor följde försökspersonerna en kontrollerad polariserad periodisering som inkluderade 15 högintensiva intervallträningspass (HIIT) (3 x 8 min, 3 x 8 + 4 min, 4 x 8 min &amp; 4 x 4 min) på högsta genomförbara intensitet (isoeffort) på cykelergometer. Doseringen av syre administrerades intermittent genom Oxelerate-enheten. Ett 20 min all-out test utfördes som för- och eftertest.   Resultat Hela gruppen (n = 12) ökade signifikant på prestationstestet (W) med 6.4 % (P = 0.002). Den relativa effekten (W/kg) ökade signifikant med 8.2% (P = 0.0011). HOT (n = 6) ökade signifikant på prestationstestet med 8.3% (P = 0.028) och den relativa effekten ökade med 9.4% (P = 0.011). Hela gruppen (n = 12) ökade signifikant i VO2medel under prestationstestet med 4.1 % (P = 0.03) och i det relativa värdet med 5.4 % (P = 0.01). Hela gruppen hade också en signifikant ökning av VO2peak med 3.7 % (P = 0.04). En mycket stark korrelation hittades mellan träningspassdata och prestationstestet.   Slutsats Träningsupplägget är gynnsamt för ökning av prestation och VO2peak i cykling. Användning av hyperoxi under träningsupplägget ökar prestationen.

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