Tesis sobre el tema "Pilote study"
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Ducarroz, Simon. "Le tabagisme et le risque de cancers liés au tabac chez les migrants en Europe". Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE1029/document.
Texto completoInternational migration is increasing and Europe is no exception with immigrants accounting for more than 10% of the total European Union population in 2014. One pressing issue is tobacco use in immigrants as they may use tobacco differently from the natives of the hostcountry and this could result in differing tobacco‐related cancers (TRC) risks compared to those in the natives. However very little is known about tobacco use, a major avoidable cancer cause, and TRC in immigrants in Europe. The overall objective of this thesis was to investigate tobacco use and risk of TRC in immigrants. The aims were to: explore tobacco use and its determinants in immigrants in France (TOBAMIG pilot study), compare the burden of TRC between immigrants and natives in Denmark, put these results into context with current knowledge, and give guidance on how to set up a study on tobacco use and cancer risk in immigrants in France using the experience from the TOBAMIG pilot study. In the TOBAMIG pilot study information on tobacco use and its determinants was collected from a mixed sample of immigrants, suggesting a large‐scale study was in principle feasible, but modifications from the TOBAMiG approach were to be made. In Denmark, the overall TRC rate in immigrants was lower than that of the natives; however, large differences were observed by cancer‐site and by country of origin, suggesting that among other factors the smoking patterns from the immigrant’s country of origin have a primary role in the burden of TRC. Finally, with regard to a large‐scale study in France, two study designs are proposed, depending on the quantity of information sought, to better understand tobacco use in immigrants and risk of TRC
Houehanou, Sonou Yessito Corine Nadège. "Épidémiologie des facteurs de risque cardiovasculaire en population tropicale - cas du Bénin". Thesis, Limoges, 2015. http://www.theses.fr/2015LIMO0135/document.
Texto completoAn epidemiological transition is observed in tropical areas with the growing of cardiovascular atherosclerosis diseases. The objective of this thesis was to contribute to a better knowledge of the epidemiology of cardiovascular risk factors in tropical area, particularly in Benin. An analysis of prevalence of cardiovascular risk factors in general population was led from Benin national STEPS survey. A systematic review of cardiovascular prospective cohort studies in sub-Saharan Africa (SSA) was conducted. Methodology of TAHES (Tanvè health study) cohort was described; a pilot study was implemented. These data show high frequencies of several cardiovascular risk factors in Benin; differences between urban and rural areas were observed. They underline the rarity of cardiovascular cohort studies in ASS. Besides, they support the hypothesis of cardiovascular cohort feasibility in general population in Benin
Farfal, Hervé. "Promotion de l’activité physique chez l’adolescent : interventions chez des jeunes obèses et des jeunes issus de familles socio économiquement défavorisées". Thesis, Pau, 2017. http://www.theses.fr/2017PAUU3028/document.
Texto completoThis thesis is based on the observation of the lack of physical activity (PA) in adolescents: approximately 80% of this age group does not reach the recommended daily 60 minutes. This situation and its important health consequences, has a greater impact on the most vulnerable young people, such as obese adolescents and those from socioeconomically disadvantaged families. Two studies aiming at promoting PA to these audiences were conducted: objective measures of PA before, during and after interventions were performed in two different PA program settings.The goal of the first study was to test the feasibility and the impact of a PA program for adolescents from disadvantaged backgrounds. For each adolescent, one of their parents was also involved. Thus, 18 parents and 22 adolescents participated in the “1 parent - 1 adolescent” program. Two hours of PA twice a week during eleven weeks were proposed for each of the participating groups. PA levels and several anthropometric, physiological and psychological parameters were collected. All participants followed the eleven weeks of intervention. The analyzes showed that the daily 60-min AP threshold was reached only during the program for adolescents. The daily 30 min for parents was reached at all measurements times of. Additional analyzes revealed 1) that program efficacy on PA level was modulated by age for adolescents and by attendance rate for parents, 2) a decreased of amotivation for the most assiduous adolescents, and 3) an increase in well-being for adolescents. The results of this pilot study highlighted the feasibility and effectiveness of such a program, which could now be deployed in the form of a randomized trial including a control group.The goal of the second study was to test the effects of 10-month multidisciplinary residential weight reduction program on body mass index (BMI) and PA levels of obese adolescents (21 boys and 41 girls aged 14 years with a BMI of 33 kg / m²). The modulating role of parental climate and motivation of the adolescent on the effectiveness of the care was evaluated. The results indicated a positive effect of the program with a decrease in BMI and an increase in PA during the course of treatment and four months after. With a curvilinear shape, the weight loss was strong at the beginning of the cure and then stabilized at the end. The parental climate seemed to play a facilitating role in this improvement, especially by the father, when he was perceived as being warmer, more involved and more supportive of autonomy. These PA promotion programs generate promising results on adolescent PA levels. However, the study of the determinants of the maintenance of changes during interventions must be continued
ALBERA, FABIEN. "La modelisation du broyage en mineralurgie : inventaire des modeles developpes, confrontation avec les performances d'installations reelles, criteres de selection". Orléans, 1987. http://www.theses.fr/1987ORLE2023.
Texto completoDecroix, Charlotte. "Du développement d’une intervention complexe en santé des populations à sa mise à l’échelle : aspects conceptuels et méthodologiques des études de viabilité, applications dans le champ de la petite enfance". Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0007.
Texto completoPublic health challenges facing our healthcare and education systems call for transformations that include the development of population health interventions (actions, programs, organizations, policies). These interventions are generally considered to be complex. Complexity is a major issue for the evaluation of interventions. While experimental designs are the gold standard for clinical research, their control of contextual factors to reinforce the internal validity of studies obviates the external validity of such research. It's essential to go beyond these efficacy-focused designs, in order to understand the mechanisms and processes of the intervention. This approach should make it possible to examine the implementation and conditions of routinization, transferability and scaling-up of the intervention, in the real world. To this end, Chen proposed a paradigm shift by developing the integrative validity model. This bottom-up approach recognizes 3 types of validity: internal validity, external validity and viable validity. Viable validity concerns the integration of interventions into the system in which they are to be deployed, outside a research context. Viable validity corresponds to stakeholders' perception of whether an intervention is useful, suitable, practical, affordable and evaluable, in the real world (Chen, 2010). This PhD explored the relevance of the bottom-up approach to population health interventions and the concept of viability: What is the place of viability in the development and evaluation of complex population health interventions? In what way is the study of viability a prerequisite for considering the sustainability, transfer and scaling-up of interventions? What criteria (and dimensions) should be considered when analyzing viability? The aim was to analyze the viability of innovative interventions based on stakeholders' experience of the intervention. A multiple-case study strategy, mobilizing qualitative methods and following several interlocking levels of analysis, was chosen. The three cases were selected on the basis of similarities (e.g.: intervention in the field of early childhood) and contrasts. The results converged with Chen's postulates on the relevance of adopting a bottom-up approach to research and focusing on viable validity. They suggested describing viability as the potential of an innovative intervention: (i) to integrate with existing projects, programs, organizations and policies to form a coherent whole in terms of objective, stakeholder missions, intervention levers and inputs; and (ii) to make sense to the intervention's stakeholders in the real world. This "making sense" depended on the fit between the stakeholders' perception of the innovative intervention and the system in which they are evolving. The results made it possible to test the viability criteria as updated by Chen in 2023 and to decline them into dimensions. They highlighted the interdependence of stakeholders' perceptions of these criteria, whether related to the substance or feasibility of the intervention. Moreover, viability is situated: the aim was to focus on the conditions of viability rather than to propose a binary vision of viability. Various determinants of viability were identified: the components of organizational change, the interlocking levels of the socio-ecological approach. Finally, this research questioned the definition of a evidence-based intervention through the prism of viability. Further research is underway to examine the concept from an interdisciplinary perspective
Costa, Bibiana de Fátima Correia da. "HIV virus genotyping in a sampling of Angolan origin: estudo piloto: pilot study". Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/18526.
Texto completoO HPV é o vírus sexualmente transmissível mais comum em todo o mundo, tendo uma forte relação causal com o cancro do colo do útero. A infeção por HPV é a causa necessária, mas não suficiente do cancro do colo do útero, em todo o mundo. Países em desenvolvimento têm maior taxa de infeção por HPV e cancros relacionados sendo que a prevalência da infeção por HPV global varia por país, região dentro do mesmo país e subgrupo da população sendo que os genótipos de HPV podem apresentar diferentes distribuições de acordo com a região geográfica. Mulheres africanas são desproporcionalmente afetadas com HPV e têm uma maior taxa de morbidade de cancro do colo do útero. Devido à falta de conhecimento sobre o HPV, são necessários rastreios, medidas preventivas relacionadas com cancros do colo do útero, programas de tratamento, acompanhamento posterior e imunização com vacinas contra o HPV. O objetivo deste trabalho foi determinar a prevalência da infeção por HPV e caracterizar a frequência dos vários genótipos de HPV numa população de mulheres angolanas, usando a Polymerase Chain Reaction (PCR), Restriction Fragment Length Polymorphism (RFLP) e realizar uma revisão sistemática sobre a prevalência e distribuição genotípica de HPV no continente africano. Os resultados mostram que a prevalência de HPV em mulheres angolanas foi 20,9% (14/67), que foi muito baixa em comparação com outros países da África Central. Os genótipos mais prevalentes foram HPV-61 (35.7%), HPV-16 (14.3%), HPV-33, -56, -58a, -58b, -70c, -72, -84 (7,1%). Também se verificou que dentro de regiões geográficas africanas podemos esperar diferentes taxas de eficácia resultantes de uma vacinação das populações utilizando as vacinas atualmente existentes. Em conclusão, este estudo fornece as primeiras estimativas da prevalência de HPV e sua distribuição entre as mulheres angolanas, demonstra que a epidemiologia da infeção por HPV em Angola é diferente de outras regiões do mundo. Sendo que vacinação específica para cada área geográfica é necessária, para evitar doenças relacionadas com o cancro do colo do útero e outras doenças relacionadas com o HPV. Os diferentes dados observados entre nosso estudo e os estudos utilizados para comparar os resultados podem refletir a diferenças na distribuição dos tipos HPV em diferentes populações ou podem ser por causa de diferenças entre a sensibilidade dos métodos utilizados.
Worldwide HPV is the most common sexually transmitted virus that has a strong causal relationship with cervical cancer (CC). Persistent HPV infection is the necessary but non-sufficient cause of CC worldwide. Developing countries have the highest burden of HPV infection and related cancers and the prevalence of HPV infection overall varies by country, region within country, population subgroup and HPV genotypes may exhibit differing distributions according to geographic region. African women are disproportionately impacted with HPV and have a higher rate of morbidity of cervical cancer. Due to lack of knowledge about HPV, smears and cervical cancer-related preventive measures, treatment adherence and follow-up and immunization programs of HPV vaccines are needed. The aim of this work was determine the prevalence of HPV infection and characterize the frequency of multiple HPV genotypes in Angola using Polymerase Chain Reaction (PCR) and Restriction Fragment Length Polymorphism (RFLP) and to perform a systematic review on the prevalence and genotypic distribution of HPV in the African continent. The results show that HPV prevalence in Angolan women was 20.9% (14/67) which was very low compared with other countries of Central Africa. The most prevalent genotypes were HPV-61(35.7%), HPV-16(14.3%), HPV-33, 56, 58ª, 58b, 70c, 72, 84 (7.1%). It also shows that within African geographic regions we may expect different rates of efficacy resulting from a putative vaccination of populations using the currently existing vaccines. In conclusion, this study provides the first estimates of the prevalence of HPV and distribution among women from Angola and demonstrates that the epidemiology of HPV infection in Angola is different from that of other world regions. Specific area vaccinations are needed to prevent cervical cancer and the other HPV- related diseases. The observed different data between our study and the studies used to compare the results might reflect true differences in the distribution of HPV types in different populations or might be because of differences in the sensitivity of the methods used.
Hayden, Colleen Ann. "Clinical Judgment Regarding Suspicion of Child Sexual Abuse: A Pilot Study of Factors Associated with Differential Levels of Clinician Concern". Thesis, Boston College, 2015. http://hdl.handle.net/2345/bc-ir:104663.
Texto completoChild sexual abuse is a major public health problem in the United States, but identifying risk, especially in young children with suspicion of abuse, poses many challenges. The aim of this study is to understand how clinicians judge the possible presence of sexual abuse in children where serious suspicion exists but without substantiated abuse. This study used data from randomly selected sexual abuse and trauma evaluations of preschool and school-aged children presenting to Boston Children’s Hospital (BCH) Outpatient Child Protection Program between 2000-2007 (N=100) to examine the association between child and family risk factors and level of clinician concern regarding likelihood of child sexual abuse. Multi-nomial logistic regression analysis was used to examine the relationship between child and family risk factors and level of clinician concern regarding suspicion of abuse, moderated by child’s gender and age. Results indicated that a child’s disclosure and trauma presentation were the key factors that clinicians considered within the higher level of clinician concern regarding likelihood of sexual abuse. Implications for future research and clinical practice include attention to methodology research to assist with the development and validation of assessments for evaluation of risk in complex cases of suspicion of sexual abuse that can be offered in clinical setting, without sole reliance on the child’s ability to disclose in order to access help. Additionally, it is essential that research focuses on the development of clinical models to help with clinical decision making protocols in ambiguous cases of sexual abuse with children who may not be in a position to disclose, but serious concerns have been raised, with focus on increasing their safety. The findings in this research strongly suggest that it is essential to continue to focus on assisting children who present with suspicion of sexual abuse in complex cases that do not fit neatly into our current forensic and child protective services systems. This is especially necessary with the most vulnerable children where disclosure is unlikely, but clinical evaluations can yield recommendations that maximize efforts at increasing safety, child mental health, and family cohesion, and build on strengths while simultaneously accounting for risks
Thesis (PhD) — Boston College, 2015
Submitted to: Boston College. Graduate School of Social Work
Discipline: Social Work
Smyth, Amy Marie. "An investigation into the initial validity of the Canterbury behaviour screening protocol (CBSP): a pilot study". Thesis, University of Canterbury. Health Sciences, 2006. http://hdl.handle.net/10092/1406.
Texto completoBryngelsson, Sofie y Elin Jönsson. "Ländryggssmärta hos piloter inom kommersiell luftfart, en tvärsnittsstudie. Low back pain among commercial flying pilots, a cross-sectional study". Thesis, Uppsala universitet, Åsenlöf: Fysioterapi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-402307.
Texto completoBackground.Low back pain is common among commercial flying pilots and may possibly be a reason for future long- term sick leave. Possible influencing factors are the number of working years and exercise habits. There are few studies researching commercial flying pilots. Purpose.To describe the prevalence of low back pain among commercial flying pilots and to investigate the risk of long- term sick leave. Furthermore, identify differences in the incidence of low back pain among pilots who has worked <10 compared to >10 years, as well as to investigate the correlation between low back pain and self-assessed exercise habits. Method.A cross-sectional study was conducted with a web survey. The survey initially consisted of self-designed questions followed by “Örebroformuläret kortversion” by Steven Linton. Results.The study contained 73 respondents, which corresponded to a response rate of 30%. A total of 57.5% of the 73 respondents indicated that they had low back pain, of which the majority had been suffering for over a year. The results showed that the pilots who had low back pain had no risk of long-term sick leave. There was a difference in the incidence of low back pain in those who worked over compared to under ten years (p=0.017). The correlation between exercise habits and the incidence of low back pain was not statistically significant (r=0.03), (p=0.08). Conclusion.The prevalence of nonspecific low back pain in commercial flying pilots was high and seemed to increase with the number of working years. Further research needs to investigate which factors contribute to the high incidence of nonspecific low back pain.
Thompson, Richard D. "A curriculum for private pilot airplane". CSUSB ScholarWorks, 1990. https://scholarworks.lib.csusb.edu/etd-project/764.
Texto completoDavid, Romain. "Study and design of integrated laser diode driver for 3D-depth sensing applications". Thesis, Lyon, 2021. http://www.theses.fr/2021LYSE1033.
Texto completoThree-dimensional (3D) image sensors are key enablers for unlocking emerging applications in consumer electronics such as facial recognition, presence detection, gesture control or Augmented Reality (AR). These sensors mostly rely on range measuring techniques such as structured-light or Time-of-Flight (ToF) principles. The indirect Time-of-Flight (iToF) principle offers the advantage of a simple, reliable and low cost solution for mobile applications by using a laser transmitter and an image sensor. Its operating principle is to calculate a distance by measuring the phase shift between a modulated infrared laser signal and the optical signal received by the sensor after reflection on an object from the scene. Laser pulses with a duty cycle close to 50\% are usually sent through the scene by modulating the current through a semiconductor laser diode. The thesis is focused on the study and design of a compact, cost-effective and efficient integrated Laser Diode Driver (LDD) for 3D-depth sensing applications used in mobile phones. The novelty here concerns the integration of the whole driver (except laser diode and some passive components) on a single chip while accommodating mobile phone constraints (low supply voltages, high integration). Another important requirement concerns the high voltage spikes occurring during fast transients due to stray inductance. Finally, a high efficiency and low losses in the chip are critical for saving the battery lifetime and minimizing the self-heating. For comparison purposes, two different driving topologies, implementing a DC/DC converter connecting a switching element either in series or in parallel with a laser diode, have been retained as basis for designing the laser diode driver. Two IC prototypes have been realized using a 130nm CMOS technology from STMicroelectronics. Both drivers are able to generate current pulses up to 3A with a 2.5ns pulse width at a maximum 200MHz frequency under a 3.6V supply voltage. Under theses conditions, they provide an average output electrical power of 4.5W to the laser diode with an electrical efficiency of around 60%
Moore, Aldyth Margaret. "A pilot study of commonly held misconceptions in secondary school genetics". Thesis, Rhodes University, 1990. http://hdl.handle.net/10962/d1001404.
Texto completoMagolbo, Natiara Grava. "Pesquisa sistemática dos ensaios clínicos aleatorizados pilotos e de viabilidade em dermatologia análise quanto à adequação metodológica ao CONSORT Statement para estudos pilotos. /". Botucatu, 2020. http://hdl.handle.net/11449/192348.
Texto completoResumo: Introdução: Estudos pilotos e de viabilidade são realizados em diversas áreas clínicas e têm importante papel no planejamento e desenvolvimento de ensaios clínicos aleatorizados (ECAs). Entretanto, na literatura existe grande número de ECAs declarados como pilotos e de viabilidade, mas não relatam claramente em seus objetivos e métodos quais itens são testados quanto aos processos e viabilidade e se são uma preparação para estudos maiores. Objetivos: avaliar a adequação dos relatos de ECAs denominados como pilotos ou de viabilidade publicados na área de dermatologia, em relação aos cincos pontos-chaves necessários para relato destes estudos e determinar quais são os fatores associados com adequação completa aos cincos pontoschaves. Métodos: pesquisa sistemática metodológica de ECAs pilotos e de viabilidade em dermatologia publicados no PubMed, no período de janeiro de 2012 a julho de 2018. Critérios de exclusão: protocolos, carta aos editores e estudos pilotos não aleatorizados. A extração de dados de cada artigo selecionado foi realizada por meio de uma planilha padronizada. Dois revisores extraíram os dados e qualquer desacordo foi resolvido através de consenso. Os estudos incluídos foram avaliados quanto sua adequação aos cincos pontos-chaves, os quais foram escolhidos pelos autores a partir do CONSORT Statement para estudos pilotos e de viabilidade, por considerarem que são itens fundamentais para um bom relato de ECA piloto e de viabilidade. Os cincos pontos-chaves são: ... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Background: Pilot and feasibility studies are carried out in several clinical areas and have an important role in the planning and development of randomized clinical trials (RCTs). However, in the literature there are a large number of RCTs declared as pilots and viability, but not clearly related in their objectives and methods. What are the items tested with regard to processes and feasibility and if it is a preparation for larger studies. Objectives: to assess RCT’s suitability reports referred to as tests or feasibility of publication in the field of dermatology, in relation to the values of key keys used for study reports and wich are the factors associated with complete adequacy to the key points. Methods: systematic survey of dermatology pilot’s RCT published in PubMed from January 2012 to July 2018. Exclusion criteria: protocols, letter to editorials and non-randomized pilot studies. Data extraction from each selected article was performed using a standardized spreadsheet. Two reviewers extracted the data and any disagreements were resolved by consensus. The included studies were assessed as to their suitability for the five key points, which were chosen by the authors from the CONSORT Statement for pilot and feasibility studies, as they consider that they are fundamental items for a good report of pilot and feasibility RCTs. The five key points are: i) title or abstract indicating that it is a pilot study; ii) objectives attesting to viability; iii) outcomes that ass... (Complete abstract click electronic access below)
Mestre
Hansen, Rickard. "Pilot study : Modeling of Wildfires". Thesis, Blekinge Tekniska Högskola, Avdelningen för matematik och naturvetenskap, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1236.
Texto completoMöseneder, Jutta M. "Effekt einer ad libitum verzehrten fettreduzierten Kost, reich an Obst, Gemüse und Milchprodukten auf den Blutdruck bei Borderline-Hypertonikern". Phd thesis, Universität Potsdam, 2002. http://opus.kobv.de/ubp/volltexte/2005/34/.
Texto completoDie Studienpopulation setzte sich aus 53 übergewichtigen Probanden mit einer nicht medikamentös therapierten Borderline-Hypertonie und ohne Stoffwechselerkrankungen zusammen. Die Studienteilnehmer wurden randomisiert entweder der Idealgruppe mit einer fettarmen Kost reich an Milchprodukten, Obst und Gemüse (ähnlich der DASH-Idealgruppe) oder der Kontrollgruppe mit habitueller Ernährungsweise zugeteilt. Über einen Zeitraum von fünf Wochen wurde den Probanden etwa 50% ihres täglichen Lebensmittelbedarfes entsprechend ihrer Gruppenzugehörigkeit kostenfrei zur Verfügung gestellt. Gelegenheitsblutdruckmessungen und 24h-Blutdruckmessungen, Ernährungs- und Aktivitätsprotokolle, Blut- und Urinproben sowie anthropometrische Messungen wurden vor, während und fünf Wochen nach der Interventionsphase durchgeführt.
Die Ergebnisse zeigen, dass in der Idealgruppe keine signifikante Blutdrucksenkung beobachtet werden konnte. Dies lässt sich durch die Tatsache erklären, dass die Lebens-mittel- und Nährstoffaufnahme der deutschen Kontrollgruppe eher der amerikanischen Idealgruppe entsprach. In der Pilot-Studie waren die Unterschiede in der Nährstoffzufuhr zwischen den beiden Gruppen viel geringer als in der DASH-Studie; für eine blutdrucksenkende Ernährungsumstellung bestand somit nur ein geringer Spielraum. Eine weitere Erklärung besteht in der unterschiedlichen Zusammensetzung der Studienpopulation. Bei DASH wurden vorwiegend farbige Probanden (40% höhere Hypertonieprävalenz) untersucht. Die Studienergebnisse lassen also den Schluss zu, dass Ernährungs- und Lebensstilgewohnheiten sowie der genetische Hintergrund der entsprechenden Bevölkerungsgruppe bei der Formulierung von nährstoff- oder lebensmittelbezogenen Empfehlungen zur Senkung des Bluthochdruckes Berücksichtigung finden müssen.
The Dietary Approaches to Stop Hypertension trial (DASH), a randomized well-controlled feeding study conducted at 4 medical centers, demonstrated that a low-fat diet, rich in fruits, vegetables and dairy products is able to lower blood pressure of borderline-hypertensive people significantly. Body weight, sodium intake and alcohol consumption were kept constant during the whole study period, due to the known influence on hypertension. Aim of our study project was to investigate whether the results of the DASH study can be confirmed by (i) using a German hypertensive population and (ii) replacing the well-controlled feeding design by allowing ad libitum intake according to dietary ad-vice. The participants were asked to keep their body weight, sodium urine excretion (un-der this study design more valid than sodium intake) and their alcohol consumption con-stant.
Our pilot study population consisted of 53 mainly overweight participants with borderline hypertension and without medication or any metabolic disorders. They were randomly assigned to either an ideal diet low in fat and rich in dairy products, fruits and vegetables (similar to the DASH I-group) or a habitual diet as control (C-group). During five weeks the subjects were provided 50 % of their daily intake for free according to their dietary pattern. Single and 24h-blood pressure measurements, dietary weighed and physical activity records, blood and urine samples and anthropometric measurements were collected before, during and five weeks after the intervention period.
The study results indicated that no significantly reduction of blood pressure could be observed for both methods in the I-group of our trial. This is due to the fact that the baseline intake of foods and nutrients of the German subjects was nearly corresponding to the intake targeted for the DASH I-group. Therefore, it was impossible to increase the intake of these nutrients in our I-group by the same percentage as in the DASH study. Another explanation may be the different consistency of the study population. About 60% of the DASH study population were African Americans with a known higher prevalence of hy-pertension (about 40%) than Caucasians.
The conclusion is that even convincing results of a controlled trial cannot be simply transferred into dietary advice for the general public. For addressing food-based dietary guidelines to reduce the risk of hypertension it is necessary to consider the genetic background as well as the dietary and the lifestyle situation of the target population carefully.
Lombard, Agnita. "A somatosensory test : a pilot study". Master's thesis, University of Cape Town, 1995. http://hdl.handle.net/11427/27040.
Texto completoMaerrawi, Ilham El. "Desenvolvimento de um estudo piloto de uma pesquisa que visa identificar fatores de risco associados às infecções pelo HIV, hepatites B, C e sífilis em população carcerária". Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/5/5137/tde-09122009-174537/.
Texto completoIntroduction: Confined populations are exposed to circumstances that increase their vulnerability to sexually transmitted infections. HIV, hepatitis B and C, and syphilis, encounter at the prison system an environment favorable to their dissemination. Studies in confined populations are surrounded by bureaucratic, ethical and security barriers. Thus, a pilot study is of great importance -for identify obstacles and opportunities that may arise during the implementation of the main study. Objective: implementation of a pilot study on risk behaviors associated to the dissemination of HIV, hepatitis B and C, and syphilis in an incarcerated population. Methods: Cross Sectional study. In July of 2007, in a convenience sample, 107 prisoners were interviewed, face to face, using a standardized questioner. The study was approved by the Human Subject Committee of the Hospital das Clinicas of the School of Medicine from the University of Sao Paulo. Results: the research protocol was strict followed: institutional meetings of the direction and the different professional teams of the prison system; invitation to participants in close contact with prisoners representatives; signature of the consenting forms after the invitation and before the questionnaire was applied. Meetings were conducted to adjust the questionnaire. Interviewers were trained. A dataset using Microsoft Office was elaborated to allow insertion of the data collected. Subjects represented 16, 5% of the prison population. Participants were young, average of 31, 1 years of age. The length time in prison was 18, 7 months in average. The average of the initiation in the use of legal drugs was 14, 7 and illegal drugs 16, 6 years of age. After the arrestment there was a diminishment of the use of drugs, and no injection of drugs was reported. Tattoo inside of the prison was reported by 55, 1%. STI were reported by 41, 2% in life and by 34% in the last month, and 2, 5% reported to be HIV positive. 53, 8% maintained the same amount of sexual relation that they had outside of the prison. From the 28, 6% that regularly used condoms, 26, 3 regularly used inside of the prison too. Interviewed that were involved in aggression were 78, 5% verbal and 65, 1% physic, and 33, 6% refereed being threatened of dead. Marijuana, Alcohol and crack were the drugs involved in such circumstances. Discussion: The pilot study has tested the instrument of research, its applicability and ability to identify risk factors for transmission of the mentioned infections, both within or outside of the prison. The training of interviewers favored both the familiarity with the instrument, as the appropriate contact secure and ethical - with inmates. The experience with this reality has contributed to map vulnerabilities in the implementation of the main study. Limitations of the study: serology and analysis were not part of the pilot study, therefore postponed for the main study with adequate sample. Questionnaires may present problems with the information obtained. Many of the information may not match the reality; both, information or memory biases could be identified.
Hockey, Athol James Temlett. "A pilot study of secondary teachers' understanding of population dynamics". Thesis, Rhodes University, 1996. http://hdl.handle.net/10962/d1003586.
Texto completoDixon, Jeannette. "Screening for hereditary haemochromatosis : a pilot study /". [St. Lucia, Qld. : s.n.], 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17400.pdf.
Texto completoNyman, Elin. "Hierarchical modeling of diabetes : a pilot study". Thesis, Biotechnology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-19076.
Texto completoIn type 2 diabetes the concentration of glucose in the blood is increased, and tissues like fat and musclebecome less sensitive to insulin. These two phenomena are interrelated, but since the glucose-insulininterplay is highly complex, many aspects are still not understood. Here, a model-based approachmight help. Nevertheless, also a model-based approach has a limited impact, unless models for thesub-systems can be combined into a model for the whole-body regulation. Such a multi-level,module-based model is referred to as a hierarchical model, and this thesis is a proof-of-principle studyfor the future development of such models.
We have extended one of the best available models for the whole-body regulations, to include azoomable module for the fat tissue. The first step was to implement the whole-body model in thesoftware MathModelica, which support hierarchical modeling. Second, the originally mergedinsulin-responding module was sub-divided, so that a fat tissue was singled out. Third, a model for theinput-output profile for the fat tissue was developed by combining mechanistic knowledge withexisting and novel data from human fat cells. Finally, this detailed model was fitted to the profile of theoriginal fat model, and inserted in the whole-body model, with negligible effect on the whole-bodysimulations.
The resulting model has the ability to translate mechanistically oriented simulations on the biochemicallevel, which is the level were drugs act, to the whole-body level, which is of clinical interest. This is aquantum leap forward for modeling, and understanding, glucose homeostasis and type 2 diabetes.
Wong, Yee-man Cora y 黃綺雯. "Malnutrition in hospitalized geriatrics: a pilot study". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31223710.
Texto completoPicone, Meghan C. "Situation Awareness in LPNs: a Pilot Study". eScholarship@UMMS, 2020. https://escholarship.umassmed.edu/gsn_diss/61.
Texto completoWong, Yee-man Cora. "Malnutrition in hospitalized geriatrics : a pilot study /". Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22054935.
Texto completoPotter, Emma C. "Health Insurance Experiences of Gay Father Families: Perceptions, Disclosure, and Roles". Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/23839.
Texto completoMaster of Science
Sharma, Abhishek. "Xichang paediatric refractive error study (X-PRES), A pilot study". Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.510222.
Texto completoHambrook, David. "A pilot study exploring performance-based emotional intelligence in anorexia nervosa". Thesis, King's College London (University of London), 2011. http://kclpure.kcl.ac.uk/portal/en/theses/a-pilot-study-exploring-performancebased-emotional-intelligence-in-anorexia-nervosa(7f168b5e-9c6b-4c83-a867-423f051544ee).html.
Texto completoSnyder, Karen Hope. "Roles of Students and Instructors in a Pilot Computer-based College Algebra Course". Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/SnyderKH2006.pdf.
Texto completoFullingim, James Fred Sarkees-Wircenski Michelle. "Regional airline qualifications a study in the marketability of higher education graduates /". [Denton, Tex.] : University of North Texas, 2007. http://digital.library.unt.edu/permalink/meta-dc-5181.
Texto completoColarieti-Tosti, Massimiliano. "The "best language" stereotype threat : A pilot study". Thesis, Södertörn University College, Lärarutbildningen, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-1215.
Texto completoThis work should be seen as a pilot study of the effect that the common-sense based statement that one understands and learns best in their best language has on pupils in Swedish schools.
A number of students have been given a mathematical test in the language they use for their normal school activities, and that is not their mother tongue. Some of them (approximately 50%) were led to believe this particular test to be language fair. Their average score on the test has then been compared to the average score on the same test of the remaining 50% students who considered the test a normal one. The difference in performance between the two subgroups has been interpreted with the help of the concept of stereotype threat.
This pilot study showed a trace of the hypothesised best language stereotype threat in a specific group of students and will hopefully serve as a guide for a larger work that could prove (or falsify) the existence of the best language stereo-type threat with statistical certainty, extend its range of applicability to a wider group of students and establish its size as compared to other related factors. A final caveat: This study is focussed on (and relevant only for those) students that perform their school activities in a language different from their mother tongue but that are fully operational in the teaching language.
Gezer, Evrim. "Coastal Scenic Evaluation, A Pilot Study For Cirali". Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605157/index.pdf.
Texto completoirali, D values are calculated and corresponding classes are found for different attributes of parameters rising from the human usage.
Vogel, Ralf y Stefan Frisch. "The resolution of case conflicts : a pilot study". Universität Potsdam, 2003. http://opus.kobv.de/ubp/volltexte/2009/3246/.
Texto completoFaraon, Montathar. "Birth order effects on attitudes: a pilot study". Thesis, Linnéuniversitetet, Institutionen för pedagogik, psykologi och idrottsvetenskap, PPI, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-11627.
Texto completoTran, Thai. "Indirectness in Vietnamese newspaper commentaries a pilot study /". Bowling Green, Ohio : Bowling Green State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=bgsu1182797918.
Texto completoWong, Lai-wan Livia y 黃麗韻. "Cantonese paediatric hearing screening test: a pilot study". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31251043.
Texto completoStack, Michelle Elena. "The Nova Multilingual Neuropsychological Battery: A Pilot Study". NSUWorks, 2010. http://nsuworks.nova.edu/cps_stuetd/67.
Texto completoPettersson, Kristoffer. "Pilot Project Study for Industrial Surplus Heat Transportation". Thesis, KTH, Energiteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-201737.
Texto completoSamtidigt har både den svenska regeringen och EU antagit ambitiösa mål om ökad energieffektivitet och minskad energiintensitet. Ett sätt för industrisektorn att öka sin energieffektivitet är att ta tillvara på energi som går förlorad som restvärme i ett flertal processer. Detta arbete undersökte möjligheterna att använda ett mobilt värmelager (eng. Mobile thermal energy storage, M-TES), utvecklat vid KTH, som en metod att transportera restvärme från ett stålverk i Sandviken till ett lokalt hotell. Innan hade värmelagrets prestanda fastställts experimentellt på en prototyp vid KTH. En kostnadsuppskattning för en större modell, som går att använda i praktiken, erhölls. Det kan konstateras att kostnaderna för en verklig modell av värmelagret påverkas av främst två parametrar: antalet rör inuti lagret och rörens diameter. Effekterna på prestanda av ändra dessa parametrar studerades med teoretiska samband. Det visade sig att prestandan kan påverkas markant genom att göra ändringar i designen. Hur kostnaden påverkas kunde inte visas men en kostnadseffektiv design har så få rör som möjligt, vilket medför att rördiametern måste ökas. Genom att använda de teoretiska resultaten utformades en logistik för en värmelagerdesign i två scenarier; ett scenario där ett växthus försörjs med värme, med relativt lågt energibehov jämfört med det andra fallet, där både växthus och hotell förses med värme. I hotel-scenariot kompletterar värmelagret den existerande pellets-pannan som förser hotellet med värme idag. Det visade sig att ett ökat värmebehov och antal värmeleveranser ökade lönsamheten för systemet avsevärt. Den sammantagna kostnaden för transporterad värme (engelska: levelized cost of transported energy, LCOTE) användes som parameter för att mäta lönsamheten och LCOTE-värden av 470 SEK/MWh samt 1380 SEK/MWh fanns för de två scenarierna. En känslighetsanalys visade att värmelagret självt är en av de mest inflytelserika parametrarna på LCOTE-värdet, samtidigt som det också är en av de mest osäkra posterna med avseende på kostnad och prestanda. Det rekommenderas att framtida studier fokuseras på att utforska val av design och tillhörande kostnader och prestanda.
Rossouw, Gabriel Johannes. "Self-esteem and aggressive behaviour: a pilot study". Thesis, Rhodes University, 1987. http://hdl.handle.net/10962/d1007471.
Texto completoTran, Thai T. "Indirectness in Vietnamese Newspaper Commentaries: A Pilot Study". Bowling Green State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1182797918.
Texto completoMitchell, Cari Bacon. "Enactments, outcome, and marital therapy : a pilot study /". Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2528.pdf.
Texto completoWong, Lai-wan Livia. "Cantonese paediatric hearing screening test : a pilot study /". Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19859922.
Texto completoSimpson, Bronwyn. "Nutrient supplementation and cognitive function: A pilot study". Thesis, Simpson, Bronwyn (1994) Nutrient supplementation and cognitive function: A pilot study. Masters by Coursework thesis, Murdoch University, 1994. https://researchrepository.murdoch.edu.au/id/eprint/50239/.
Texto completoMitchell, Carianne. "Enactments, Outcome, and Marital Therapy: A Pilot Study". BYU ScholarsArchive, 2008. https://scholarsarchive.byu.edu/etd/1508.
Texto completoRender, M., J. Smith, L. Perrine, S. Kirk y Kerry Proctor-Williams. "Phrase Analysis of Preschooler Narratives: A Pilot Study". Digital Commons @ East Tennessee State University, 2006. https://dc.etsu.edu/etsu-works/1850.
Texto completoSwenson, Brendon James. "Interproximal tooth wear: an in vitro pilot study". Thesis, University of Iowa, 2013. https://ir.uiowa.edu/etd/2641.
Texto completoSmith, Nicholas Rindels. "Interproximal tooth wear: an in vivo pilot study". Thesis, University of Iowa, 2011. https://ir.uiowa.edu/etd/1084.
Texto completoGrizzell, Saara. "The Use of Feedback in Group Counseling in a State Vocational Rehabilitation Setting: A Pilot Study". DigitalCommons@USU, 2015. https://digitalcommons.usu.edu/etd/4252.
Texto completoFrazier, Julia R. "A case study of a pilot teacher study group in Senegal". Thesis, Leeds Beckett University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.508744.
Texto completoMohan, Saravanan. "Feasibility study of Hybrid Cloud adoption in education and manufacturing". The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1367453037.
Texto completoHartman, Lorraine Mary. "The evaluation of an individualised language programme in two multicultural Standard 9 classes : a pilot study". Thesis, Rhodes University, 1992. http://hdl.handle.net/10962/d1003405.
Texto completoBjörk, Eleonora y Mari Thorildsson. "Childbirth self-efficacy inventory in Tanzania : a pilot study". Thesis, Högskolan Dalarna, Omvårdnad, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:du-3270.
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