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 53 for “"Biometry"”.
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Fetal Biometry and Early Behavioural Development
… 4 examines population based differences in fetal biometry and the applicability of findings from Chapter 3 to an Israeli population. Results indicated that there were significant differences in AGD between Israeli and UK populations, potentially attributed to ethnicity. This supports the need for …
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Relationship between Preoperative Biometry and Intraocular Pressure Reduction after Phacoemulsification in Normal and Glaucoma patients
목적 정상군과 녹내장군에서 수술 전 안구 계측치가 백내장 수술 후 안압하강 정도를 예측하는데 도움이 되는지를 알아보고자 하였다. 대상과 방법 정상군 30명, 개방각 녹내장군 24명, 폐쇄각 녹내장군 31명, 총 85명 85안을 대상으로 수술 전과 수술 후 3개월째 안압의 변화 대비 전방 깊이, 안축장 길이 등의 수술 전 인자, 수술 전 안압을 전방 깊이로 나눈 Pressure/Depth ratio(PD ratio), 수술 전 안압을 안축장으로 나눈 Pressure/length ratio(PL ratio) 등의 지표 사이의 관련성을 …
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Ocular biometric change in orthokeratology. An investigation into the effects of orthokeratology on ocular biometry and refractive error in an adult population.
… into the effects of orthokeratology on ocular biometry and refractive error. Two different back surface lens designs were applied right eye) pentacurve and left eye) aspheric. The aspheric design was chosen to more closely mimic the cornea¿s natural shape. Anterior and posterior apical radii …
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The evolution of biological theories: explaining the success of Mendelian genetics, Darwin’s Theory of natural selection and their synthesis
… by Gregory Radick, who argues that Weldonian biometry, a rival theory of inheritance, could have supplanted Mendelism. For Radick, the success of Mendelism and the corresponding decline of biometry can be explained by historical circumstances, such as Weldon’s untimely death and his inability …
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Refractive error, ocular biometry and oculomotor function: The prevalence of myopia and its potential risk factors in the Middle East, with an investigation of dynamic accommodation responses and axial length fluctuations in young myopic adults.
The main experimental work of this thesis has been a cross-sectional study of the prevalence of refractive error and its biometric correlates in Middle Eastern adults. In addition dynamic accommodative responses and twenty-four hour axial length fluctuations were investigated in young myopic …
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Analysis and Correction of Corneal Astigmatism in Modern Pseudophakia
… corneal astigmatism through reliable ocular biometry and the accurate calculation of surgically induced astigmatism. In the thesis the repeatability of assessing corneal curvature was assessed using six commercially available keratometers. The results question the validity of corneal biometry …
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ΕΠΙΔΡΑΣΗ ΒΙΟΤΙΚΩΝ ΚΑΙ ΑΒΙΟΤΙΚΩΝ ΠΑΡΑΓΟΝΤΩΝ ΣΤΗ ΔΥΝΑΜΙΚΗ ΠΛΗΘΥΣΜΩΝ ΚΑΛΛΙΕΡΓΟΥΜΕΝΩΝ ΚΩΠΗΠΟΔΩΝ
… (INBREEDINGEFFECTS). ALSO WE HAVE STUDIED THE BIOMETRY, THE CHEMICAL COMPOSITIONS AND THEOXYGEN CONSUMPTION OF THESE COPEPODS, ELEVATED UNDER DIFFERENT LABORATORY CONDITIONS. THE OBSERVATIONS REQUIRED FOR THE DETERMINATION OF POPULATION DYNAMICS ARE: 1) LARVAL DEVELOPMENT, 2) MATURATION TIME OF …
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ΣΥΝΕΙΣΦΟΡΑ ΣΤΗ ΜΕΛΕΤΗ ΤΗΣ ΟΙΚΟΦΥΣΙΟΛΟΓΙΑΣ ΤΟΥ ΓΑΣΤΕΡΟΠΟΔΟΥ ΠΝΕΥΜΟΝΟΦΟΡΟΥ HELIX LUCORUM L.
THE STUDIES OF BIOLOGY, ECOLOGY, ETHOLOGY, BIOMETRY, ENERGY BUDGET AND EXCRETION HAVE SHOWN THAT HELIX LUCORUM L. FROM GREECE IS CHARACTERIZED A) BY THREE GENERATIONS PER YEAR, B) IT MAY LIVE 14 YEARS OR MORE IN ORDER TO REACH ITS MAXIMUM SIZE, C) IT IS SEXUALLY MATURE WHEN THE LARGEST SHELL …
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Estudo de plâncton, particularmente da bioecologia de Temora stylifera (Dana, 1849) (Copepoda, Calanoida) Rio de Janeiro - RJ: emissário submarino de Ipanema e Baía de Guanabara
… the species'biology, annual cycle, generations, biometry and biogeography. The application of enzymatic electrophoresis techniques rendered evident some methodological aspects allowing a better understanding of the Temora stylifera populations. With respect to the plankton, we developped the …
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An investigation of the relationship between the structure and function of the myopic eye. Correlating the optical, functional and structural aspects of ametropia in young adult humans.
… cornea to retina dimensions using non-contact biometry. In addition, the central and peripheral resolution acuities of myopic and emmetropic eyes for high and low contrast levels were investigated. Our structural and functional measurements revealed relatively prolate myopic eyes with reduced …
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Refractive Outcome in Eyes of Preterm Infants
… refraction was performed, and ultrasound biometry (A-scan) was also performed. These results were compared with the control group (group 3, full term babies). RESULTS: Between age of 4 - 6, there were significant differences in the prevalence of myopia among the three groups, and the …
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Avaliação testicular e seminal de caprinos alimentados com feno de Cenostigma pyramidale (tul.) E. Gagnon & g. P. Lewis
… animals were subjected to weighing, testicular biometry, semen collection and blood collection every 30 days. After 120 days the animals were castrated and the testicles were collected. Testicular measurements were performed and fragments were collected for histological processing, to determine …
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Ambedkar through the study of race, caste, and difference, 1870-1966
… physical anthropology to British eugenics and biometry, to the more orthodox British social anthropology. Interestingly, by the 1940s, Indian scholars (Ambedkar included) were enthralled by the application of physical anthropology, especially anthropometry, to their studies of caste—a …
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Following Ocular Changes in United States Optometry Students (FOCUS): Protocol Development and Baseline Data
… cycloplegic autorefraction (Grand Seiko), biometry (LenStar), optical coherence tomography (OCT) and OCT angiography (OCTA, Spectralis), and ocular aberrations (COAS HD). Participants were classified into refractive error groups. OCT scans were analyzed for retinal and choroidal thickness, …
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Intrauterine growth restriction (IUGR) and birth outcomes in a cohort of HIV-infected pregnant women in Cape Town, South Africa
… Further exploration of the ability of foetal biometry to independently and accurately identify IUGR cases antenatally in resource limited settings is essential.
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Modeling Of Mouse Eye And Errors In Ocular Parameters Affecting Refractive State
… the linear resolution of the rodent eye biometry and obtaining more accurate data for the refractive indices of the lens and vitreous.</p>
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Sparse functional regression models: minimax rates and contamination
In functional linear regression and functional generalized linear regression models, the effect of the predictor function is usually assumed to be spread across the index space. In this dissertation we consider the sparse functional linear model and the sparse functional generalized linear models …
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On Wavelet-Based Methods for Scalar-on-Function Regression
This thesis consists of work done on three projects which extend and employ wavelet-based functional linear regression. In the first project, we propose a wavelet-based approach to functional mixture regression. In our approach, the functional predictor and the unknown component-specific …
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Sample Size Calculation Based on the Semiparametric Analysis of Short-term and Long-term Hazard Ratios
We derive sample size formulae for survival data with non-proportional hazard functions under both fixed and contiguous alternatives. Sample size determination has been widely discussed in literature for studies with failure-time endpoints. Many researchers have developed methods with the …
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On Compositional Data Modeling and Its Biomedical Applications
Compositional data occur naturally in biomedical studies which investigate changes in the proportions of various components of a combined medical measurement. The statistical method to analyze this type of data is underdeveloped. Currently the multivariate logitnormal model seems to be the only …
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