Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 138 for “"unexposed"”.
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Growth of HIV Exposed and Unexposed Infants
… infants born to HIV-negative mothers (unexposed). Infant growth was also compared between the three different settings in South Africa. METHODS A prospective cohort study, called the Good Start Study, was conducted in three different settings in South Africa. Mothers were recruited at …
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An investigation of Arsenic in biological samples from unexposed volunteers in the UK
This thesis describes studies on the analysis of arsenic (As) in human biological samples, mainly urine but also hair and fingernails using inductively coupled plasma mass spectrometry (ICP-MS) and graphite furnace atomic absorption spectrometry (GF-AAS). The relationship between ethnicity and …
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The short-term outcomes of HIV-exposed versus HIV-unexposed very low birth weight infants
… to have a higher morbidity and mortality than unexposed infants. There is almost no literature comparing the short-term outcomes of HIV exposed versus unexposed VLBW neonates who are born prematurely. Methods: A retrospective review of all VLBW neonates who were admitted at Groote Schuur …
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Growth, infectious morbidity, and neurodevelopment of HIV-exposed and HIV-unexposed infants in the context of lifelong maternal antiretroviral therapy and breastfeeding: a prospective cohort study
… MCH-ART study, 2013-2016) and without HIV (HIV-unexposed uninfected, HU2 study; 2014-2017) in Gugulethu, Cape Town, South Africa. Enrolled at first antenatal visit at a primary care clinic, women were followed-up during pregnancy and postpartum with their breastfed infants, through 12 months …
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A comparative analysis of the medicine use and exposures in infants who are HIV exposed uninfected and HIV unexposed uninfected in the first year in Cape Town, South Africa
… coverage, between infants who are HEU and HIV-unexposed uninfected (HUU) during their first year of life. Methods: This was a secondary analysis of a birth cohort study of pregnant women living with and without HIV and their infants between 2017 and 2019 in Cape Town, South Africa. Interviewer- …
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Associations of limestone dust and occurrence of respiratory conditions among stone crushers in Lusaka,Zambia
… involving 200 exposed (stone crushers) and 200 unexposed participants to limestone dust aged between 16 and 59 years living in Misisi Compound.Convenience and Systematic Random Sampling techniques were used to select study participants. A structured interview schedule (respiratory questionnaire) …
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Associations of limestone dust and occurrence of respiratory conditions among stone crushers in Lusaka,Zambia
… involving 200 exposed (stone crushers) and 200 unexposed participants to limestone dust aged between 16 and 59 years living in Misisi Compound.Convenience and Systematic Random Sampling techniques were used to select study participants. A structured interview schedule (respiratory questionnaire) …
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Acute kidney injury in tenofovir exposed patients in HIV infected individuals admitted at Groote Schuur hospital, Cape Town and Livingstone hospital, Gqeberha, South Africa
… were TDF-exposed and 99/213 (45%) were TDF-unexposed. The median age was 37 years (IQR: 31 - 45yrs). The TDF-exposed were significantly older, 40 years versus 34 years (p<0.01) The TDF-unexposed group had a higher prevalence of hypertension: 21/99 (21.2%) versus 11/114 (9.7%), (p=0.02). The …
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Validation of laboratory versus field avoidance behavior of schooling fathead minnows to heavy metal blends relative to acute toxicity during long term exposure
… during 12 months of laboratory holding for unexposed (control) fish and two levels of metal blend exposure in a steep gradient laminar flow chamber. Toxicity of the metal blend was determined for laboratory and field, control and metals acclimated fish. Unexposed fish avoided very low levels …
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To evaluate the role of miRNAs as potential diagnostic and prognostic biomarkers for Asbestos-related interstitial lung diseases (ILD), Non-Small Cell Lung Cancer (NSCLC) and Malignant Pleural Mesothelioma (MPM)
… in discriminating ILD-free asbestos-exposed from unexposed subjects. miR-6516-5p, miR-942-5p, and let-7f-5p showed a 92% diagnostic accuracy (95% CI: 0.76-1.00) in differentiating asbestos-related ILD-cases from ILD-free subjects formerly exposed to asbestos. miR-4714-3p and miR-20a-5p showed a …
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The Relationship Between Hospital Construction and High Risk Infant Auditory Function at NICU Discharge: A Retrospective Descriptive Cohort Study
… between hospital construction exposed and unexposed groups. Sample size: n = 540 infant cases (243 construction exposed; 297 unexposed controls). Inclusion criteria: infant cases born and discharged from the study site NICU in the year 2010 (unexposed) and year 2015 (exposed) and received a …
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Prevalence of Anti-diabetic and Antilipidemic Medications in Children and Adolescents treated with Atypical Antipsychotics in a Virginia Medicaid Population
… of anti-diabetic medication use was 0.32% in the unexposed and 1.40% in the exposed group (p<0.0001). Prevalence of antilipidemic medication use was 0.09% in the unexposed and 0.35% in the exposed group (p<0.0001). Conclusion: Prevalence of anti-diabetic and antilipidemic medication use in the …
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Defining mRNA-generated T cell memory in respiratory viral infection
… benefits when compared to previous infection and unexposed naïve mice challenged with influenza virus in the absence of neutralizing antibodies. This intermediate state of protection was associated with a lack of resident memory cells following initial vaccination but expeditated T cell …
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Analytical methods to investigate occupational exposure to toxic elements and their species
… levels study was conducted to establish an unexposed background reference range for five species of arsenic, to improve interpretation of biological monitoring results. Unexpected arsenic peaks in routine biological monitoring samples were also investigated, with one of which being …
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The influence of maternal HIV and ART exposure on neonate brain white matter integrity and organisation
… developmental delays as compared to uninfected unexposed populations. Few brain imaging studies have been done in HEU infants and children, and so the effects of the exposure to in utero HIV and ARVs on their neurodevelopment are not well understood. As this population matures, there is a need …
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Illness episodes in a cohort of preterm infants in their first year of life
… To prospectively follow a cohort of HIV unexposed preterm infants (29-34 weeks) and describe their illness episodes, admissions and associated risk factors over a one-year period. Methods: The study was nested in a parent study evaluating the efficacy of a monoclonal antibody against RSV …
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The effect of HIV-exposure on immune responses to expanded programme on immunization vaccines and antigens
… in response to vaccine antigens than HIV unexposed (HU) infants.
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Effects of methamphetamine on prenatally exposed children in Cape Town: cognition and intrinsic functional brain connectivity
… connectivity. Children with PME (n = 23) and unexposed controls (n = 22) completed a battery of neurocognitive assessments, and a smaller sub-sample (n = 36; 19 children with PME, 17 unexposed controls) also underwent resting-state functional magnetic resonance imaging (RS-fMRI). Independent …
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Spread of Red Imported Fire Ant, Solenopsis invicta, in Virginia and effects of sub-lethal exposure to agrochemicals on its behavior
… behavior in a laboratory setting. We found that unexposed colonies were able to locate the food source more quickly during the second trial while exposed ants were unable to improve their performance. We also found that more exposed ant workers were unable to successfully navigate the maze as …
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Investigation of the Geology and Hydrology of Stone County, Missouri to Determine the Extent of Groundwater Contamination
… 500 feet thick and approximately 2100 feet of unexposed rocks ranging in age from Cambrian to Ordovician make up the complete sedimentary sequence to the Pre-Cambrian igneous and metamorphic basement. The geology was studied to determine the extent of groundwater contamination by sampling water …
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