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 158 for “"stains"”.
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Stability And Recovery Of Rna In Biological Stains
… study on the persistence of RNA in biological stains. Stains were prepared from blood, saliva, semen, and vaginal secretions, and were exposed to a range of environmental conditions so that the affects of different light sources, temperatures, and environments could be assessed. Using the …
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Assessment And In Vitro Repair Of Damaged Dna Templates From Forensic Stains
DNA extracted from biological stains is often intractable to analysis. This may due to a number of factors including a low copy number (LCN) of starting molecules, the presence of soluble inhibitors or damaged DNA templates. Remedies may be available to the forensic scientist to deal with LCN …
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Evaluation of SpermTracker paper and spray for the visualization of seminal stains
… When an item is received for analysis, semen stains may be undetectable to the naked eye, so a proper visualization method is crucial. Throughout this study, two presumptive tests for semen, STK® SpermTracker-Lab and STK® SpermTracker-Spray were compared to each other and the existing Acid …
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A study of the use of immunohistochemical stains in an academic hospital
… focused on the use of immunohistochemical (IHC) stains in the pathology department. This paper covers the possible effects of the ACA on laboratory operations, an overview of pathology, and the use of IHC by subspecialty. It will concludes with results of the findings and how they can be …
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The use of genetic materials, RNA, to determine the age of saliva stains
… the relationship between the age of the saliva stains that were aged for specific periods of time and the degradation rate of specific RNA molecules were assessed to find the correlation between them. Two types of approaches and two types of RNA molecules were used for this purpose. In the first …
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Development and Testing of a Rapid Multiplex Assay for the Identification of Biological Stains
… makes it possible to individualize biological stains, the identification of the stain itself can present forensic serologists with a significant challenge. Current antibody- and enzyme activity-based assays used by forensic practitioners for biological stain identification yield only …
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Improving visibility of latent stains on dark fabric: dark adaptation and stroboscopic light sources
When an item is submitted to a crime laboratory, the first step in analysis is to examine the item under white light. The next step in examination often involves the use of alternate light sources (ALS) to search for potential biological evidence. Dark adaptation has been suggested as a method to …
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Deep Learning Based Salient Object Detection for the Detection of Stains and Holes on Patterned Laundry
… stage. One application area is the detection of stains and holes on laundry after washing in order to sort out items of laundry containing holes or to rewash them if they contain tenacious stains. Little research has been conducted in this field to date because laundry is crumpled during and …
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Inference of single cell profiles from histology stains with the Single-Cell omics from Histology Analysis Framework (SCHAF)
… data, such as Hematoxylin-and-Eosin (H&E) stains. While single-cell profiles provide rich molecular information, they can be challenging to collect routinely and do not have spatial resolution. Conversely, histological H&E assays have been a cornerstone of tissue pathology for decades, but …
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The development of a "new" stain and its comparison with currently available stains for the evaluation of mycobacteria in processed tissue
Includes bibliographical references.
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The effects of common household cleaning agents and aging on the removal of quantitatively applied food stains from rayon, nylon, and olefin pile upholstery fabrics
… this research were to quantitatively apply food stains to a rayon, a nylon, and an olefin pile upholstery fabric, and to determine the effects of aging times and cleaning agents on their removal. Another objective was to correlate the instrumental color change measurements with ratings obtained …
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Characteristics of bloodstains on waterproof fabrics
… event. BPA becomes more complicated when bloodstains are found on clothing items due to the wide range of fabrics and their inherent properties, along with a range of factors, including but not limited to, treatments, effects of laundering, and wear. The interaction between fabrics and …
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Mechanisms of transfer film formation on data recording heads
… in the playback signal. The influence of stains on the playback signal of reading heads is studied using RAW (Read After Write) tests and their influence on the wear of the heads by using indentation technique. The playback signal has been found to vary and the errors to increase as stains …
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Determination of capillary electrophoretic methodology and its application as a mechanistic tool for gaining insight into the composition of, and detergent action on, coloured macromolecule fabric stains.
… in an attempt to identify the nature of fabric stains and the action of washing on the stained pigment. A summary of the thesis is presented which contains suggestions for future work.
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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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A stain-free detection system for electrophoresis
… to identify electrophoretic bands in gels. The stains utilized in these methods involve health risks since they are mutagenic. Also stains like EtBr are intercalating agents meaning they wedge themselves into the grooves of DNA and stay there. Since this includes a physical contact the stains …
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The Use And Development Of Laser Microdissection To Separate Spermatozoa From Epithelial Cells For Str Analysis
… tool in identifying the source of biological stains, particularly from the investigation of sexual assault crimes. Difficulties in analysis arise primarily in the interpretation of mixed genotypes when cell separation of the sexual assailant's sperm from the victim's cells is incomplete. The …
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Investigation into smoothed particle hydrodynamics for non-newtonian droplet modelling
… since a crime event can produce many blood stains. Understanding the origins of the blood stains from pure observations is very difficult because much of the information about the impact is lost. A theoretical model is therefore needed to better understand the dynamics of droplet impact and …
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Messenger Rna Profiling: A Prototype Method For Body Fluidand Tissue Identification
… we demonstrate that RNA is stable in biological stains and can be recovered in sufficient quantity and quality for analysis using reverse transcriptasepolymerase chain reaction assay (RT-PCR). We have identified sets of candidate tissuespecific genes for body fluids and tissues of forensic …
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