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 1282 for “"staining"”.
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An Evaluation of Bacterial Flagella Staining Procedures
<p>Five currently used flagella stains and staining procedures have been studied and evaluated. A staining method that is simplest, most reliable, and highly reproducible, especially for beginning students and technicians has been assembled and recommended.</p><p>Four important variables necessary …
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High-Magnification Digital Staining of FTIR Spectroscopic Images
… interpretation of the tissue and the chemical staining process has several limitations in histopathologic examinations. FTIR spectroscopic imaging has seen groundbreaking success in the characterization of tissue, but has yet to provide practical pathological examination of biopsies. In an …
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Investigating optical microplastic detection methods using fluorescent staining through Nile Red
… detection methods using NR-based fluorescent staining with the ultimate goal of providing data that could be used towards building a polymer identification model that could be implemented into a low-cost detection system. Three different investigations are presented. First, the fluorescence …
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A microfluidic culture for two populations of dorsal root ganglia for differential staining
… of dorsal root ganglia (DRGs) by differential staining. Polydimethylsiloxane (PDMS) is the most widely used silicon-based organic polymer, and is particularly known for its wide spread use in microfluidics. Various methods have been employed to pump fluids in these channels for applications …
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Mechanisms Causing Ferric Staining in the Secondary Water System of Brigham City, Utah
… has, during some years, exhibited reddish-brown staining when used by Brigham City for irrigation. I propose that seasonal fluctuations in the reservoir chemistry create an environment conducive to dissolving iron from the iron-rich sediments, which subsequently precipitate during irrigation, …
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Immune Blocking of Fluorescent Antibody Staining of Streptococcus Group A Compared with Anti-streptolysin O
… antibodies in the patients serum will block the staining of the cells with the fluorescent tagged antibody. The FABA titer can be determined by diluting the serum until there is no more blocking effect.</p> <p>Sera from one hundred hospital patients were tested for the presence of FABA and ASOA …
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In vitro Staining of Denture Liners and Potential for Color Correction Using Commonly Available Denture Cleansers
… each liner group were assigned to one of three staining agents, including: cola (Coca-Cola Company, Atlanta, GA); grape juice, and coffee. Following a 12hr. staining cycle, samples from each staining agent were equally distributed to one of three soaking fluids for 12hrs., including: two …
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Changes in NPY staining in the arcuate nucleus during and after food restriction in lactating rats
… of food restriction on Neuropeptide Y (NPY) staining in the arcuate nucleus of lactating rats to evaluate a role for NPY in the maintenance of lactational diestrus in food restricted rats. NPY staining was compared on days 15, 20 and 25 of lactation between animals fed ad libitum (AL) and …
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Aggregation studies of the beta (34-42) peptide and synthesis of targets for amyloid staining and imaging
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1997.
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A cell level automated approach for quantifying antibody staining in immunohistochemistry images. A structural approach for quantifying antibody staining in colonic cancer spheroid images by integrating image processing and machine learning towards the implementation of computer aided scoring of cancer markers.
… a novel automated method for determining the staining intensity level of positive nuclei or what is known as the intensity score (IS). The minor intensity features are observed and used to classify low, intermediate and high stained positive nuclei. Statistical methods were applied throughout …
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A Study of Asymmetry in Mosquitofish Populations in Polluted and Nonpolluted Environments Using a New Scale Staining Technique.
Levels of fluctuating asymmetry were compared in two populations of mosquitofish (Gambusia affinis) from polluted waters and two populations from nonpolluted waters. Two of the characters studied, pectoral fin rays and lateral line scales, showed no asymmetry in these populations and therefore …
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A morphologic and immunohistochemical analysis of gastric adenocarcinoma with regard to the presence of E-cadherin and localisation of β-catenin staining
Includes abstract. Includes bibliographical references.
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NADPH-d staining in the supraoptic and paraventricular nuclei increases in late pregnant and lactating rats and is influenced by ovarian steroids and central oxytocin levels
Previous research has demonstrated that staining for NADPH-diaphorase (NADPH-d) a histochemical marker for nitric oxide synthase is increased in the supraoptic (SON) and paraventricular (PVN) nuclei in late pregnancy. This work was extended to investigate whether increases in staining were evident …
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Nerve Fiber Diameter Measurements Using Hematoxylin and Eosin Staining and Brightfield Microscopy to Assess the Novel Method of Characterizing Peripheral Nerve Fiber Distributions by Group Delay
<p>Peripheral neuropathies are a set of common diseases that affect the peripheral nervous system, causing damage to vital connections between various parts of the body and the brain and spinal cord. Different clinical conditions are known to selectively impact various size nerve fibers, which …
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Identifying Children with Constitutional Mismatch Repair Deficiency (CMMR-D) Syndrome in the Expanding Lynch Syndrome population in Cape Town
… syndrome (LS); however, the pattern of loss of staining in the background, non-tumour tissue is unique to CMMR-D syndrome. CMMR-D syndrome is seen in LS families and occurs as a result of consanguinity or founder effect. The South African population has LS families concentrated in the Western …
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CD146 expression in early and late onset pre-eclampsia : is there a difference?
… in expression of CD146 immunohistochemical staining on intermediate trophoblast in early and late onset pre-eclampsia placentas as well as comparing this expression to gestational age matched control placentas. Study Design: Retrospective case series of 100 placentas: 25 early onset and 25 …
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Investigating the Effects of Sodium Benzoate on Fat Deposition, Pharyngeal Pumping, and Related Genetic Mechanisms in Caenorhabditis elegans
… lipid accumulation though the use of Oil Red O staining methods. Results from the study concluded that sodium benzoate exposure resulted in a significant difference in staining levels of lipid after 72 hours of dosing. The study also tested different target genes of interest dealing with the …
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Expression of ICAM-1, MHC-1 and B7 surface molecules in canine primary appendicular osteosarcoma
… and 3 of 7 (43%) dog tumors expressed moderate staining. MHC-1 expression in tumors was observed in 4 of 7 (57. 1%) dogs with moderate staining while 3 of 7 (43%) exhibited low staining. In formalin-fixed, paraffin-embedded tumor sections, ICAM-1 showed high staining for tumors from 10 of 17 …
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Histopathologic Features in Vitiligo
… much lower than vitiligo skin. In Fontana-Masson staining, 16% of vitiliginous skin showed the presence of melanin. The ratio of pigmented area to epidermal area was 0.06% in vitiligo, while 17% in perilesional normal skin and 8.9% in nevus depigmentosus skin. In immunohistochemical staining for …
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