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Articles 1 - 10 of 10
Full-Text Articles in Life Sciences
World Revision Of The Genus Triaenodes (Trichoptera: Leptoceridae), Junmi Hur
World Revision Of The Genus Triaenodes (Trichoptera: Leptoceridae), Junmi Hur
All Dissertations
One genus, Triaenodes of the long-horned caddisfly family Leptoceridae includes approximately 245 species globally and is cosmopolitan in distribution, occurring in all major faunal regions. The species of the genus, along with other species of caddisflies, are especially sensitive to pollution and are used by developed countries to monitor water quality.
Two hundred twenty-one species are reviewed and an additional 9 species are new to science. Twenty-six species groups are recognized in these subgenera of Triaenodes. The genus Triaenodes is divided here into seven monophyletic subgenera. The subgenus Ylodes Milne, 1934, has 15 species distributed in the Australasian, East …
Survival, Nesting Success, And Habitat Selection Of Wild Turkey Populations In The Upper Coastal Plain Of South Carolina, William Moore
Survival, Nesting Success, And Habitat Selection Of Wild Turkey Populations In The Upper Coastal Plain Of South Carolina, William Moore
All Dissertations
Survival, nesting success, and habitat selection of wild turkey (Meleagris gallopavo) populations in South Carolina were evaluated. The study was conducted on the Department of Energy's Savannah River Site (SRS) in the Upper Coastal Plain of South Carolina. Portions of the study were conducted on Crackerneck Wildlife Management Area and Ecological Reserve (CWMA) on the western portion of SRS. During January through March of 1998 - 2000, 37 hens and 47 gobblers were captured on SRS, and 19 gobblers were captured on CWMA and fitted with radio transmitters. Survival rates between hunted and unhunted wild turkey gobblers were compared to …
Application Of Nanotechnology To Pathogen Detection And Inactivation, Hua Yang
Application Of Nanotechnology To Pathogen Detection And Inactivation, Hua Yang
All Dissertations
Listeria monocytogenes is a psychrotrophic, gram-positive pathogen frequently involved in outbreaks of food-borne disease in which milk, cheese, meat, and vegetables represent the incriminated foodstuffs. L. monocytogenes biofilms formed on food contact surfaces and processing environments are the major sources of contamination to ready-to-eat food products. Nanotechnology as an emerging new technology has many biological applications. The objectives of this study were to apply immunonanoparticles, carboxyl modified nanoparticles covalently bound with anti-L. monocytogenes, for L. monocytogenes detection and inactivation. Immunonanopaticles and fluorescent immunonanoparticles were applied to indirect fluorescent immunoassay and direct fluorescent immunoassay, respectively, for sensitive detection of L. monocytogenes …
Long-Term Evaluation Of Liquid Vs. Granular Nitrogen Fertilization On Creeping Bentgrass [Agrostis Stoloniferous L. Var. Palustris Huds.] And Hybrid Bermudagrass [Cynodon Dactylon (L.) Pers. X C. Transvaalensis Burtt-Davy] Performance, Frederick Totten
All Dissertations
Limited turfgrass research comparing the efficiency of foliar to granular fertilizers exists. To expand upon previous research and to determine advantages and disadvantages between dry and liquid fertilizers applied to turf, research was conducted at Clemson University to compare the efficiency of three nitrogen (N) carriers (100% granular, 100% liquid, and 50% granular + 50% liquid) using N rates ranging from 98 to 390 kg ha-1 on growth and performance of creeping bentgrass and ultra-dwarf bermudagrass.
Studies were conducted in 2003 and 2004 to evaluate liquid and/or granular N fertilization on turfgrass quality, clipping yield, and root biomass of `L-93` …
The Role Of Natural And Sexual Selection In The Origin And Maintenance Of Divergence Within And Between The Mexican Sailfin Mollies, Poecilia Velifera And P. Petenensis, Shala Hankison
All Dissertations
Understanding speciation remains a holy grail of evolutionary biology. One useful approach is studying the evolutionary mechanisms important in population divergence to infer the mechanisms important in speciation. This method is especially useful when closely related species can be compared to determine whether intraspecific differences parallel interspecific differences. I studied population divergence in two species of Mexican sailfin mollies, Poecilia velifera and P. petenensis. These closely related species are particularly useful for this type of study, as they live in habitats that may differ in the importance of natural selection. In addition, these species may differ in the importance …
Eliminating Listeria Monocytogenes In Packed Ready-To-Eat Poultry Products By Combining In-Package Pasteurization With Nisin And/Or Lysozyme, Sunil Mangalassary
Eliminating Listeria Monocytogenes In Packed Ready-To-Eat Poultry Products By Combining In-Package Pasteurization With Nisin And/Or Lysozyme, Sunil Mangalassary
All Dissertations
Listeria monocytogenes is a significant food-borne pathogen particularly associated with ready-to-eat (RTE) meat and poultry products which can grow and multiply at refrigeration temperatures. In-package pasteurization is an effective post-lethality intervention to reduce microbial contamination of RTE meat products. Enhancing the efficiency of in-package pasteurization is vital in reducing the L. monocytogenes population as well as in preserving the quality of the meat product. The first section of the dissertation research evaluated the effect of product thickness on the surface heating rate and final surface temperature during in-package pasteurization of vacuum-packaged bologna. Three thicknesses (4, 12, and 20 mm), corresponding …
Identification Of The Rassf3 Gene As A Potential Tumor Suppressor Responsible For The Resistance To Mammary Tumor Development In Mmtv/Neu Transgenic Mice, Isabelle Jacquemart
Identification Of The Rassf3 Gene As A Potential Tumor Suppressor Responsible For The Resistance To Mammary Tumor Development In Mmtv/Neu Transgenic Mice, Isabelle Jacquemart
All Dissertations
The MMTV/neu transgenic mouse line is a well-documented animal model for studying HER2/neu-related breast cancer. It has been reported that a small percentage, approximately 20%, of the virgin female MMTV/neu mice seems resistant to the development of mammary gland adenoma, despite the overexpression of the neu oncogene.
To identify the factors that are responsible for the tumor resistance in these MMTV/neu female transgenic mice, comparative genetic profiling was used to screen the alterations in gene expression in the mammary gland. A novel gene named the RAS Association domain (RalGDS/AF-6) Family 3 (Rassf3), which belongs to a family of RAS effectors …
Phylogeny Of Family Limnephilidae (Insecta: Trichoptera) With Emphasis On Tribe Limnephilini (Subfamily Limnephilinae), Tatyana Vshivkova
Phylogeny Of Family Limnephilidae (Insecta: Trichoptera) With Emphasis On Tribe Limnephilini (Subfamily Limnephilinae), Tatyana Vshivkova
All Dissertations
Morphological characters of adults and immature stages of Limnephilidae were analyzed with modern phylogenetic techniques, including traditionally used characters and some that have been poorly investigated or never studied. For the first time, monophyly is inferred for the following nominotypical taxa: superfamily Limnephiloidea, family Limnephilidae, subfamily Limnephilinae, tribe Limnephilini, and Limnephilus sensu stricto. Some other higher taxa are distinguished based on high bootstrap support, unreversed synapomorphies, and/or topography, including a new family-group category for Trichoptera, 'Branch,' more inclusive than the family category and less inclusive than the superfamily category. These new taxa in Limnephiloidea are as follows: Brachycentrida New Branch …
The Role Of Prolactin And Its Antagonist In Her2/Neu Tumorigenesis, Michele Scotti
The Role Of Prolactin And Its Antagonist In Her2/Neu Tumorigenesis, Michele Scotti
All Dissertations
Purpose: To study the role of prolactin (PRL) and its antagonist, G129R, in HER2/Neu tumorigenesis. Specifically, to investigate the interaction between the oncogene HER2 and the PRL receptor (PRLR) signaling pathways for designing effective combinational therapeutics for breast cancer.
Experimental Design: The combination effects of G129R and an anti-HER2 antibody, Herceptin, were tested against HER2-overexpressing human breast cancer cell lines, T-47D and BT-474, using cell based assays and xenografts established in athymic mice. Furthermore, four different bitransgenic mouse lines co-expressing the murine version of HER2 and PRL or G129R were generated. The mammary tumor incidence, characterization of mammary gland development, …
Multiscale Habitat Associations Of Three Primary Burrowing Crayfish, Shane Welch
Multiscale Habitat Associations Of Three Primary Burrowing Crayfish, Shane Welch
All Dissertations
The distribution and habitat associations of three primary burrowing crayfish species were examined at the landscape and patch scales. GIS based predictors were used to model the species occurrence across the study landscapes and vegetation structure data were used to model crayfish abundance within landscape patches. Distocambarus crockeri, a species endemic to the piedmont physiographic region of South Carolina was a terrestrial habitat specialist at broad because of its association with well drained ridge-top soils. Within these soils D. crockeri were dependent on open treeless habitats. The species habitat was consistent with early descriptions of the region and suggested that …