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Relevant bibliographies by topics / Respiratory cycle / Dissertations / Theses

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Dissertations / Theses on the topic 'Respiratory cycle'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Hernandez, Raymundo. "Circulatory and Respiratory Responses to Cycle Ergometry at Different Pedal Rates." Thesis, University of North Texas, 1991. https://digital.library.unt.edu/ark:/67531/metadc503894/.

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The effects of moderate workload exercise at different pedal rates on circulatory and respiratory parameters were studied. Five subjects performed seven discontinuous constant-load cycle ergometer tests of 30 minutes duration at pedal rates of 40, 50, 60, 70, 80, 90 and 100 rpm. Oxygen uptake and carbon dioxide production were determined by standard open circuit spirometry, while heart rate was recorded by electrocardiograph. The CO₂ rebreathing procedure was administered during the exercise bout in order to determine cardiac output. Blood pressure was determined for each test, and total perip

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2

Motamedi, Fakhr Shayan. "Application of signal processing to respiratory cycle related EEG change (RCREC) in children." Thesis, University of Southampton, 2014. https://eprints.soton.ac.uk/363767/.

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Sleep is an important part of everyday life. It directly affects daytime cognition and general performance. In children, sleep is a crucial requirement for growth and learning and lack of sleep may manifest itself as a long lasting developmental deficit. Sleep disorders which disrupt the normal continuity of sleep therefore benefit from early identification and treatment. A common cause of sleep disruption is sleep disordered breathing which can be associated with frequent arousals from sleep. Many relevant areas of sleep research continue to generate new and interesting findings utilising bio

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3

Abdulhay, Enas. "Une nouvelle méthode non-invasive d'estimation cycle à cycle du volume d'éjection cardiaque dans le signal de plethysmographie respiratoire par inductance : algorithme de "double décomposition empirique"." Université Joseph Fourier (Grenoble ; 1971-2015), 2009. http://www.theses.fr/2009GRE10220.

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L'objectif principal qui guide les développements en traitement du signal de cette thèse est la mise au point d'un outil qui s'inscrit dans une démarche de physiologie intégrative où, à chaque échelle, le modèle des signaux peut être différent On cherche ici à restreindre le jeu d'hypothèses a priori à un ensemble de règles physiologiques qui régissent les interactions entre functions physiologiques en l'absence d'hypothèses fonnelles et: mathématiques sur les signaux. Nous avons appliqué cette démarche au problème de la détection des ondes cardiaques et: de l' estimation cycle à cycle du volu

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4

Wise, Charles Hamilton. "An Analysis of Respiratory Mechanisms Controlling Exercise Hyperpnea During Cycle Ergometry Conducted at Selected Workloads and Pedal Frequencies." Thesis, North Texas State University, 1986. https://digital.library.unt.edu/ark:/67531/metadc332175/.

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Respiratory and metabolic patterns in response to variations in exercise workload (WL) and pedal frequency (RPM) were examined in 10 healthy males. Each subject performed WLs of low (L), moderate (M) and high (H) intensity, equivalent to 25%, 50% and 75% V02 m a x at 7 pedal frequencies (40, 50, 60, 70, 80, 90 and 100 RPM). ANOVA ( 3 X 7 design) indicated that WL and RPM had independent and significant effects on all respiratory and metabolic measures; i.e., the greater the WL and RPM, the higher the HR, V02, VC02, Ve, Fb, Vt, Vt/Ti, Vt/Te and Ti/TtQt and the lower the Ti and Te. However, anal

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5

Taqi, Hussah A. S. A. "The role of cell and virus-encoded ion channels in the replication cycle of human respiratory syncytial virus." Thesis, University of Leeds, 2016. http://etheses.whiterose.ac.uk/15627/.

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Infection with human respiratory syncytial virus (HRSV) causes both acute and chronic respiratory problems in children and the immunosuppressed. There is currently no HRSV vaccine, although prophylactic immunotherapy offers protection to at-risk individuals. However, this treatment is expensive and incompletely protective. Ion channels are pore-forming proteins that regulate ion homeostasis across membranes in cells, acting as signaling proteins that regulate many aspects of cell physiology from cell cycle progression to apoptosis and gene transcription. Since ion channels play a key role in m

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6

Cardoso, Maria da Conceição Alves. "Active cycle breathing techniques como técnica de higiene brônquica na asma: estudo piloto." Master's thesis, Faculdade de Ciências Médicas. Universidade Nova de Lisboa, 2011. http://hdl.handle.net/10362/6986.

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RESUMO: Relevância e Objectivos: O objectivo deste estudo consistiu em verificar a eficácia e segurança de uma técnica de higiene brônquica – Active Cycle breathing technique (ACBT), na remoção de secreções e desinsuflação em crianças asmáticas. É uma técnica recente, que ainda não foi estudada nesta população. Metodologia: A amostra foi constituída por um total de 14 crianças, com idades compreendidas entre os 6 e 18 anos, com o diagnóstico de asma. Foi dividida em dois grupos: grupo de controlo, constituído por asmáticos estáveis e grupo experimental constituído por asmáticos pós-crise.

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7

Rogers, Nicholas John. "The respiratory and gut physiology of fish : responses to environmental change." Thesis, University of Exeter, 2015. http://hdl.handle.net/10871/19295.

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Many of the habitats occupied by fish are highly dynamic, naturally demonstrating substantial abiotic fluctuations over diurnal, tidal or seasonal cycles. It is also the case that throughout their 545 million year evolutionary history, fish have existed in aquatic environments very different to those of the present day. However, the past several decades have seen unprecedented rates of environmental change, at local and global scales, arising from human activities. The two major themes of the present thesis are: 1) Respiratory responses of fish to changes in environmental oxygen and temperatur

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8

Osiki, Prisca Ofure. "The effect of beta-oxidation or TCA cycle inhibition on mitochondrial function and the sensitivity of high resolution respiratory detection." Master's thesis, Faculty of Health Sciences, 2019. http://hdl.handle.net/11427/30944.

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INTRODUCTION: A dysfunction in fatty acid beta-oxidation (β-oxidation), particularly medium chain acyl-CoA dehydrogenase (MCAD) dysfunction is a major cause of mortality and its diagnosis is usually achieved by measuring specific protein activities or metabolites in blood and/or urine samples. However, these methods do not account for secondary defects that accompany primary deficiency; such as where measures of disruption in fatty acid metabolism do not account for defects in the TCA cycle and oxidative phosphorylation. These metabolic pathways are connected and dysfunction in one pathway (pr

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9

Doolittle, Lauren May. "The Impact of Alveolar Type II Cell Mitochondrial Damage and Altered Energy Production on Acute Respiratory Distress Syndrome Development During Influenza A Virus Infection." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu159224389333959.

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10

Maja, Bogdan. "Uticaj ženskih polnih hormona na funkciju nosa u menstrualnom ciklusu i postmenopauzi." Phd thesis, Univerzitet u Novom Sadu, Medicinski fakultet u Novom Sadu, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=114855&source=NDLTD&language=en.

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Funkcija nosa povezana je sa različitim anatomskim, fiziolo&scaron;kim i emocionalnim faktorima. Postoji mnogo teorija koje su poku&scaron;ale da objasne efekat ženskih polnih hormona (estrogena i progesterona) na fiziologiju nosa, ali sam mehanizam njihovog dejstva jo&scaron; uvek ostaje izazov za mnoge istraživače. Prethodno je opisano da ženski polni hormoni mogu da izazovu nazalnu opstrukciju, povećavajući ekspresiju histaminskih H1 receptora i menjajući koncentraciju neurotransmitera, &scaron;to dovodi do edema nosne sluznice i modifikacije nazalnog otpora. Kada je reč o mirisnoj funkciji

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11

Bazilio, Darlan da Silva. "Avaliação de parâmetros cardiovasculares e respiratórios durante o ciclo sono-vigília de ratos submetidos à hipóxia crônica intermitente." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/17/17134/tde-23072018-102108/.

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A hipóxia crônica intermitente (HCI) é um modelo experimental no qual o quimiorreflexo é ativado a cada episódio de hipóxia, assim como em alguns casos de apneia obstrutiva do sono. A HCI promove aumento da atividade simpática, hipertensão e alterações no acoplamento simpático-respiratório no tronco encefálico. No presente trabalho estudamos os parâmetros cardiorrespiratórios concomitantemente com o ciclo sono-vigília em uma janela temporal de 3 horas no período do dia em que esses registros são feitos no nosso laboratório. Foram também registradas ao longo deste período as respostas cardiovas

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12

Mitchell, Candice Melissa. "Morphologic and genomic characterisation of the koala Chlamydia pneumoniae strain." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/33259/1/Candice_Mitchell_Thesis.pdf.

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Chlamydia pneumoniae is a common human and animal pathogen associated with a wide range of upper and lower respiratory tract infections. In more recent years there has been increasing evidence to suggest a link between C. pneumoniae and chronic diseases in humans, including atherosclerosis, stroke and Alzheimer’s disease. C. pneumoniae human strains show little genetic variation, indicating that the human-derived strain originated from a common ancestor in the recent past. Despite extensive information on the genetics and morphology processes of the human strain, knowledge concerning many othe

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13

Vuong, François. "Modélisation du comportement des cartouches de protection respiratoire : exposition à des atmosphères complexes de vapeurs organiques et effet des cycles d’utilisation." Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0255/document.

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Les vapeurs de composés organiques volatils (COV) représentent un risque chimique pour les travailleurs. Les cartouches de protection respiratoires sont un moyen efficace contre les expositions à ces vapeurs. L’objectif de cette thèse est la modélisation de l’exposition des cartouches dans les situations complexes : présence d'un mélange de vapeurs et cycle d’utilisation, à partir d’une étude expérimentale basée sur l’adsorption dynamique sur colonne. Suite à la contribution de R. Chauveau (thèse UL – 24/11/2014) la présente thèse poursuit l’étude sur la modélisation de l’adsorption des mélang

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14

BOURGERON, THOMAS. "Exploration enzymologique et moleculaire d'atteintes de la chaine respiratoire et du cycle de krebs." Paris 6, 1994. http://www.theses.fr/1994PA066060.

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La premiere partie de ce travail est la mise au point d'une technique d'isolement des mitochondries de cellules en culture permettant la caracterisation biochimique des mitochondries isolees de lignees lymphoblastoides humaines et l'etude de la synthese proteique mitochondriale. Disposant de cet outil, l'evolution des activites de la chaine respiratoire et de la proportion d'adnmt mute a ete etudiee dans les cellules en culture d'un enfant atteint d'un syndrome de pearson et presentant une deletion de l'adnmt a l'etat heteroplasmique. Une retombee immediate de cette etude a reside dans la poss

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15

Durollet, Marie. "Régulation de la fonction cardio-respiratoire au cours du cycle de vie de Nothobranchius furzeri : rôle de la température." Thesis, La Rochelle, 2015. http://www.theses.fr/2015LAROS037/document.

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Le système cardio-respiratoire joue un rôle prépondérant au sein d’un organisme, en permettant notamment l’apport et la distribution du dioxygène et des nutriments à l’ensemble des cellules. Mieux comprendre les modifications du système cardio-respiratoire au cours de la vie est donc un élément central dans l’évaluation de la capacité de l’organisme à répondre à ses différents besoins énergétiques, ainsi que dans la compréhension du phénomène de mortalité naturelle liée à la sénescence. Cette étude a été réalisée sur un vertébré à durée de vie extrêmement courte (~6 mois), le poisson Nothobran

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16

Darnis, Gérald. "Migration verticale du zooplancton et flux respiratoire de carbone en mer de Beaufort (Arctique canadien)." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/30011/30011.pdf.

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Le zooplancton exerce un rôle primordial dans les transferts d’énergie à travers les réseaux trophiques océaniques et dans le cycle biogéochimique du carbone des écosystèmes marins. La communauté entière recycle du CO2 en consommant le carbone photosynthétiquement fixé en surface, et en le respirant ensuite. Des migrateurs verticaux transportent du carbone stocké et le respirent en profondeur, contribuant à son exportation de la zone épipélagique. En Arctique, ce flux actif respiratoire n’a pas été mesuré, malgré un potentiel élevé de transport du à la forte contribution du migrateur saisonnie

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17

Maxime, Valérie. "Contribution à l'étude de la physiologie respiratoire du saumon atlantique (Salmo salar L. ) aux différentes étapes critiques de son cycle biologique : influence des variations de salinité ambiante." Brest, 1990. http://www.theses.fr/1990BRES2013.

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Le metabolisme energetique a ete etudie chez les juveniles de saumon atlantique (parrs et smolts), simultanement en conditions de metabolisme standard et de routine. Les modifications qui surviennent au cours de la smoltification ont ete interpretees en fonction des variations du facteur thermique (isoenzymes) et des facteurs endocriniens qui sous-tendent ce processus. L'action stimulante majeure du metabolisme energetique apparait resulter d'une potentialisation de l'effet de l'hormone de croissance par la triiodothyronine. Il a pu etre etabli que les modifications du metabolisme standard, co

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18

Abbas, Imane. "Etude de l'activation métabolique par la fraction organique d'un aérosol atmosphérique particulaire et de ses conséquences génotoxiques dans un modèle de co-culture de cellules pulmonaires humaines." Littoral, 2010. http://www.theses.fr/2010DUNK0282.

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La pollution de l’atmosphère, qu’elle soit d’origine anthropique ou naturelle, est décrite comme un des facteurs de risque majeurs pour la santé de l’homme. Une grande partie de cette pollution est due à la présence dans l’air des particules fines (PM2. 5). L’objectif de notre projet de recherche a consisté à déterminer la toxicité pulmonaire d’aérosols atmosphériques particulaires (PM2. 5) collectés à Dunkerque en termes d’activation métabolique, de génotoxicité et d’altérations du cycle cellulaire dans deux modèles de cellules : des cellules embryonnaires d’épithélium pulmonaire humain (L132

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19

Chiou, Yi-han, and 邱義涵. "Identifying oscillation gene groups in Saccharomyces cerevisiae respiratory/reductive cycle using Hilbert-Huang Transform." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/84194323149142590122.

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碩士<br>國立中央大學<br>生物資訊與系統生物研究所<br>97<br>The turn of 21st century, traditional biology is evolutes to systems biology, much study has integrate many type of data generate from high-throughput biological techniques, or validation with experiment results, and there are many data are focus on the oscillation of genes in microbes. However, use methods of numerical analysis to analyze data from a cell may have much noise, the results it analyzed also may contain much noise. The Hilbert-Huang transform (HHT) has been published in 1998, the content of this method include empirical model decomposition (E

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20

Cervantes, Ortiz Sandra Liliana. "Regulation and impact of adaptor protein SQSTM1/p62 in the replication cycle of Respiratory Syncytial Virus in Airway Epithelial Cells." Thèse, 2017. http://hdl.handle.net/1866/19442.

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Introduction: le Virus Respiratoire Syncytial humain (RSV) induit un taux élevé de morbidité et de mortalité chez les enfants, les personnes immunodéprimées et les personnes âgées. Il existe un besoin urgent d'un nouveau traitement antiviral et d'un vaccin efficaces. Les cellules épithéliales des voies aériennes (AEC) sont la cible principale de RSV et constituent la première ligne de défense grâce à des mécanismes distincts, qui incluent une réponse antivirale autonome cellulaire. La protéine p62/SQSTM1 a de multiples fonctions cellulaires, y compris la séquestration spécifique de la ca

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