Cette étude s’inscrit dans le champ des spécificités de la communication médiée par ordinateur et présente la diversité des pratiques écrivantes dans les forums de discussion grand public sur Internet. Les variations graphiques et visuelles s’appuient sur l’analyse d’un corpus de deux cents messages issus de quarante cinq forums proposant des thématiques variées, ainsi que sur l’étude particulière des variations individuelles dans les écrits de six scripteurs. Les différentes stratégies d’écriture sont d’abord présentées du point de vue de la structuration des messages: six profils graphiques reflètent les tendances compositionnelles des forumeurs. Puis les recherches s’étendent à l’ensemble des variations graphiques au sein des messages en soulignant les aspects expressifs et visuographiques de ces écrits de proximité originaux. Enfin, la thèse met l’accent sur l’usage et le rôle de l’image à côté d’un écrit plutôt normé qui s’ouvre à une communication visuelle plus attractive. / This study explores the specific characteristics of computer mediated communication and investigates the wealth of writing tactics to be found on online discussion forums open to the general public. Graphical and visual variants are brought to light through the analysis of a corpus of two hundred messages originating from forty five forums dealing with various issues, as well as through a particular study of individual variation in the production of six participants.In a first stage, different writing strategies are presented from the point of view of the way messages are structured: six graphical profiles show how forum users tend to organize their content. Then the range of our research is extended to embrace the whole of graphical variants within messages, bringing out the expressive and visuographical features typical of such umediated original writings. Finally, our study emphasizes the use and function of visual tools next to rule-bound writing, allowing for a more attractive visual type of communication.

Submitted by Nadir Basilio (nadirsb@uninove.br) on 2018-07-18T21:07:30Z No. of bitstreams: 1 Anderson Soares Silva.pdf: 1994888 bytes, checksum: 0d17fc79f295d4a5c192dd3d298390d0 (MD5) / Made available in DSpace on 2018-07-18T21:07:30Z (GMT). No. of bitstreams: 1 Anderson Soares Silva.pdf: 1994888 bytes, checksum: 0d17fc79f295d4a5c192dd3d298390d0 (MD5) Previous issue date: 2017-10-27 / Introduction: Currently, end stage renal disease (ESRD) is one of the most serious public health problems, becoming a global epidemic. It is also known that the amount of nocturnal rostral fluid displacement from the lower limbs is related to increased neck circumference and the severity of obstructive sleep apnea (OSA) in patients with end-stage renal disease. Method: A cross-sectional study was carried out to verify the degree of upper airway collapsibility in patients with ESRD. Negative expiratory pressure and baseline nocturnal polygraphy will be performed before and after the hemodialysis session. Results: There was a significant difference in pre and post hemodialysis in the various apnea / hypopnea index, neck circumference, waist circumference, percentage of exhaled flow at the time of 0.2 seconds (V0.2) sitting and lying down. The VO, 2 sitting pre-hemodialysis presented a correlation with the pre-AHI (p = 0.047, r = -0.953) and post hemodialysis (p = 0.010; r = -0.990). In addition, V0.2 after hemodialysis showed a correlation with AHI after hemodialysis (p = 0.029; r = -0.971). Discussion: The NEP test was promising for clinical use, since it has a rapid application and presents information relevant to the collapse of the airway of patients with suspected OSA. / Introdução: Atualmente, a doença renal em estagio terminal (DRET) é um dos mais sérios problemas de saúde pública, tornando-se uma epidemia global. Sabe-se também que a quantidade de deslocamento do fluido rostral durante a noite, proveniente dos membros inferiores, está relacionada ao aumento da circunferência do pescoço e a gravidade da apnéia obstrutiva do sono (AOS) em pacientes com doença renal em estágio final. Método: Foi proposto um estudo clinico transversal com o objetivo de verificar o grau de colapsabilidade da via aérea superior em pacientes com DRET. Foi realizado o teste da pressão expiratória negativa (NEP) e a poligrafia basal noturna domiciliar antes e após a sessão de hemodiálise. Resultados: Houve diferença significativa em pré e pós hemodiálise nas váriaveis índice de apneia / hipopneia, circunferência de pescoço, circunferência de cintura, porcentagem de fluxo exalada no momento de 0,2 segundos (V0,2) sentado e deitado. O VO,2 sentado pré hemodiálise apresentou correlaçao com o IAH pré (p= 0,047; r= -0,953) e pós hemodiálise (p=0,010; r= -0,990). Além disso, o V0,2 pós hemodiálise apresentou correlação com IAH pós hemodiálise (p=0,029; r= -0,971). Discussão: O teste da NEP foi promissor para o uso clínico, uma vez que ele possui uma aplicação rápida e apresenta informações relevantes para a colapso da via aérea dos pacientes com suspeita de AOS.

Sömnapné karaktäriseras av korta andningsuppehåll som inträffar under sömnen och resulterar i en störd nattsömn. Svårighetsgraden av sömnapné kan anges med hjälp av ett index som kallas för apné-hypopné index (AHI), där summan av alla andningsuppehåll divideras med den totala sömntiden. Vanligtvis sker sömnregistreringen under endast en natt men i denna studie ska registreringen ske under två nätter i stället. Syftet med studien är att undersöka skillnaden i AHI-värde och därmed skillnaden i den diagnostiserade svårighetsgraden av sömnapné mellan de två registreringstillfällen. Observationsstudien bestod av 25 patienter, varav 14 män, som blivit remitterade för sömnapnéutredning på Fysiologkliniken vid Västmanlands sjukhus Västerås. Sömnen registrerades i hemmet med hjälp av den ambulatoriska sömnregistreringsapparaten NOX T3s. All insamlad data analyserades manuellt i programmet NoxTurnal. Ett Wilcoxons signed-rank test med signifikansnivå 0,05 användes för att se om det förelåg signifikant skillnad i AHI-värde mellan de båda registreringarna. Den statistiska analysen visade ingen statistiskt signifikant skillnad i AHI mellan första respektive andra registreringen. På individnivå sågs smärre skillnader. För 3 av 25 patienter var skillnaderna mellan registreringarna sådana så att den kliniska handläggningen skulle ha kunnat förändras. / Sleep apnea is characterized by short pauses in breathing that occur during sleep and result in disrupted sleep. The severity of sleep apnea can be indicated by an index called the apnea-hypopnea index (AHI), where the sum of all breathing pauses is divided by the total sleep time. Typically, sleep monitoring occurs for only one night, but in this study, monitoring will take place over two nights. The purpose of the study is to investigate the difference in AHI value and therefore the difference in the diagnosed severity of sleep apnea between the two monitoring occasions. The study consisted of 25 patients, of whom 14 were men and 11 were women, referred for sleep apnea evaluation at the Physiology Clinic at Västmanland Hospital in Västerås. Sleep was recorded at home using the ambulatory sleep registration device NOX T3s. All data was manually analyzed using the NoxTurnal software program. A Wilcoxon signed-rank test with a significance level of 0,05 was used to determine if there was a significant difference. There was no statistically significant difference in AHI between the first and second recordings. On an individual level, minor differences were observed. For 3 out of 25 patients, the differences between the registrations were significant enough to potentially change the clinical management.

The diploma thesis is focused on the analysis of a chosen company POL, a.s., which operates in the printing industry.. The overall company´s situation is evaluated thanks to the chosen analytical methods which investigate inner and outer company´s surroundings. The suggestions and recommendations leading to the improvement of the observed situation are formulated on the basis of the analyses

Syfte: Apné/hypopné index (AHI), antalet apnéer/hypopnéer per sömntimma, är den vanligaste parametern som används för att beskriva graden av sömnapné. Syftet med studien är att undersöka effekten av olika hypopnékriterier för AHI, med desaturationsnivå 3% eller 4% d.v.s. om det finns en signifikant skillnad i AHI vid användning av hypopnékriterier 3% jämfört med 4 %. Metod och material: Polygrafiska registreringar från 40 patienter analyserades retrospektivt. Hypopnéer definierades först som 30–90% minskning av luftflödet under >10 sekunder förknippat med 3% desaturation. Därefter definierades hypopnéer med 4% desaturation. Patentregistreringarna tolkades manuellt på Fysiologkliniken vid Västmanlands sjukhus Västerås. Resultat och slutsats: En signifikant skillnad föreligger i AHI vid användning av de olika hypopnékriterierna, (p <0,001). AHI varierade från medianvärdet 8,5 (2,9–17,6) för vid användning av tolkningskriterium 4% desaturation till 15,7 (6,5–24) vid användning av tolkningskriterium 3%. Det är viktig att följa de nya uppdaterade kriterierna från American Academy of Sleep Medicine och Svenska sömnapnéregistret för att kunna ställa rätt diagnos och behandling för patienten. / Purpose: The apnea/hypopnea index (AHI) is the most common parameter used to describe the severity of sleep apnea. The purpose of this study was to examine the effect of different oxygen desaturation levels (3% and 4%) on AHI i.e. if there is a significant difference in the AHI when using different hypopnea-criteria. Method and material: Polygraphic recordings of 40 patients were analyzed retrospectively. Hypopneas were first defined as 30-90% drop in airflow for >10 s associated with 3% oxygen desaturation. Then hypopneas were defined as with 4% oxygen desaturation. Results and conclusion: There is a significant difference in AHI when using different hypopnea criteria, i.e. 4% or 3% desaturation. AHI varied from 8,5 (2,9–17,6) when using hypopnea criteria 4% to 15,7 (6,5–24) when using 3%. It is important to follow the new updated criteria from the American Academy of Sleep Medicine and the Swedish Sleep Apnea Register in order to provide the right diagnosis and treatment for the patient.