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.
Results
Showing 1 to 20 of 25 for “"color variation"”.
-
Determining the Underlying Factors of Fresh Ham Color Variation
Consumers associate meat color with quality. In some cases, especially in fresh and cured hams, the surface of a ham, whole, boneless or sectioned and formed displays a color gradient, which is unsightly and generally is considered of lower quality and must be discounted or processed different …
-
The Phenotypic Impact of Transgenic Flower Color Variation in Ipomoea quamoclit.
… in pollen and ova fitness between the color morphs.</p> <p>The single genetic change to create blue-flowering <em>I. quamoclit</em> resulted in changes in almost every trait measured. Overall, red plants had much higher fitness than blue plants, regardless of pot size. The interaction …
-
Electrical and mechanical mechanisms for color variation in the spraying of metallic paints
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1986.
-
A snapshot of color: Exploring the ecological and genetic basis of color variation in the Neotropical tortoise beetle, Chelymorpha alternans (chrysomelidae:cassidinae)
… how life’s diversity is shaped and maintained, color polymorphisms serve as a powerful tool to connect phenotypic variation with the ecological processes that influence them and the genomic factors that maintain them. My dissertation focuses on a polymorphic species within a unique and striking …
-
Reproduction and growth of the Tule perch Hysterocarpus Traskii (Gibbons) with notes on its ecology
… the work of Hopkirk and Turner concerning color variation and food habits.
-
Transformation Tolerance of Facial Recognition Technology and Informative Evaluation Metrics
… of Gaussian blur strength, intersecting with color variation. The performance-blur relationship is modeled as an s-curve, creating a highly interpretable format for discussion. Blur strength was consistently statistically significant to performance, but color variation did not significantly …
-
The genomics behind beauty: disentangling the complex coat color genetic architecture of gir breed
Coat color in cattle is a phenotypic trait of high biological, zootechnical, and economic relevance, having historically been used as a visual criterion in selection programs and as a marker associated with adaptive and productive processes. In zebu breeds such as Gir (Bos indicus), this trait …
-
Harvest practices cause aberrations in pork quality
… retail meat counters that exhibit significant color variations. This hesitation to purchase results in annual profit loss to the pork industry. Processes to minimize color variation remain a major focus of the industry and many meat science programs across the globe. Previously, we found …
-
Circular Probabilistic Based Color Processing: Applications in Digital Pathology Image Analysis
… diagnosis to address challenges in pathology. Color plays a vital role in digital pathology image analysis due to the use of chemical staining in pathology examination. However, unclear color mixing due to histological substances' co-localization and color variation among pathology images …
-
A Parametric Method of Perspective Alignment and Color Correction for Skin Lesion Imaging
… Parametric Method of Perspective Alignment and Color Correction on Skin Lesion Imaging</p> <p>Jian Xu</p> <p>This thesis investigates the employment of a parametric and fiducial-based perspective alignment method, and a color correction method in the context of digital skin lesion imaging. …
-
Evaluation of Sensing and Machine Vision Techniques in Stress Detection and Quality Evaluation of Turfgrass Species
… evaluating turfgrass quality parameters like, color, density and texture from National Turfgrass Evaluation Program trials. Image sensing took the greatest amount of time, while non-image sensing techniques were the fastest among the evaluated methods. All methods showed significant differences …
-
Biochemical Basis of Fresh Ham Color Development
Commercial hams display variation in color uniformity across the cut surface, especially the semimembranosus (SM) muscle. This variation in fresh ham color, or two-toning, persists through further processing and contributes to production of a less desirable end product. In an attempt to understand …
-
A Behavioral and Ecological Study of the Fiddler Crab UCA CRENULATA
… California, is the subject of this study.</p> <p>Variations in environmental factors as well as seasonal behavioral changes cause an important fluctuation in the male to female ratio and in population density.</p> <p>A daily and seasonal variation is observed in the different behavioral activities …
-
Constraints on the evolution of attractive traits: Natural selection, sexual selection and quantitative genetics in the zebra finch
… investigated the causes and consequences of bill color (an attractive male trait) variation in zebra finches (Taeniopygia guttata). The primary objective of my research was to test several predictions of the good-genes and runaway sexual selection hypotheses. In a 19 month breeding experiment, I …
-
SOARNET, Deep Learning Thermal Detection for Free Flight
… easy task. Pilots look for different indicators: color variation on the ground because the difference in the amount of heat absorbed by the ground varies based on the color/composition, birds circling in an area gaining lift, and certain types of cloud formations (cumulus clouds). The above …
-
Causes and consequences of color polymorphism in Rambur’s forktail (Ischnura ramburii)
Variation in male and female forms occurs in countless animal taxa, and has fascinated evolutionary biologists since Darwin and Wallace. The underpinnings of male variation have been elucidated in diverse groups; less is known about the selective forces that diversify female forms in nature. …
-
Coloration, Camouflage, and Sexual Dichromatism in the Northern Pacific Rattlesnake (Crotalus oreganus)
… viperid snakes, natural selection has shaped coloration and patterning to match local habitats, and for males to show greater warning coloration than females due to a less sedentary lifestyle. The Northern Pacific Rattlesnake (<em>Crotalus oreganus) </em>is likely the most abundant ambush …
-
Not Black and White: BMP Signaling Drives Melanocyte Differentiation Downstream of Stem Cell Activation
… questions about the role of BMP in hair and coat color variation, age-related hair graying, and melanoma initiation and progression.</p>
-
The relationship between fruit color traits and anthocyanin genes in diploid Fragaria
… molecular identity of the c locus (yellow fruit color) in Fragaria vesca, a diploid (2n = 2x = 14) strawberry. Using PCR with degenerate primer pairs, intron-containing segments of structural genes coding for the enzymes: chalcone synthase (CHS), chalcone isomerase (CHI), flavanone 3-hydroxylase …
-
The maintenance of variation in Cyprinodontiformes
Maintenance of genetic variation in the face of strong natural selection is a long-standing problem in evolutionary biology. Two extreme examples of this are the guppy (Poecilia reticulata) and the bluefin killifish (Lucania goodei), two freshwater species in the order Cyprinodontiformes with …
Page 1 of 2