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Articles 691 - 720 of 1550
Full-Text Articles in Life Sciences
Computer Integrated Print Production And Jdf, Deepak-Kumar Mohan-Kumar
Computer Integrated Print Production And Jdf, Deepak-Kumar Mohan-Kumar
Masters Theses
In the graphic arts industry, the need for the unification of mechanized and automated systems has seen a great increase in the last few years. This very need has led to various specification formats like, Adobe's PJTF and CIP3's PPF and the latest one of them all, CIP4's JDF. Earlier specification formats that had inherent limitations with proprietary architecture have paved the way to JDF. JDF is an open, extensible, XML based job ticket format that has been a proposed standard to achieve end-to-end job ticket specifications along with message interchange protocol and message description standard.
This thesis research has …
Molecular Identification, Distribution And Ecology Of Larval Malaria Mosquitoes In Carrasco/Chapare Valleys, Bolivia, Reema Paudel
Molecular Identification, Distribution And Ecology Of Larval Malaria Mosquitoes In Carrasco/Chapare Valleys, Bolivia, Reema Paudel
Masters Theses
The purpose of this study was to address the ecological differentiation of anopheline mosquitoes at the level of breeding sites in an area where species diversity is high, malaria is endemic, and the ecology of the area is complex. Fifty six sampling sites in the Carrasco/Chapare Valleys, Bolivia were sampled in May 2003 for mosquito larvae and pupae, water quality parameters, breeding water habitat type, vegetation, and altitude. Multiplex polymerase chain reaction of up to 50 samples from each collection site identified six species in the subgenus Nyssorhynchus, comprising 62% of all samples (n = 2,708): A. triannulatus (18%), A. …
Land-Use Changes And Stream Productivity: Effects On Stream Communities And Food-Chain Length, Christopher A. North
Land-Use Changes And Stream Productivity: Effects On Stream Communities And Food-Chain Length, Christopher A. North
Masters Theses
In recent years stream ecologists have come to realize that in order to better understand the processes that occur within streams it is important to incorporate some knowledge of the surrounding landscape into their studies. Previous work on Hurricane Creek indicated that agricultural activities and the proportion of cropland has an impact on stream water chemistry and community metabolism within Hurricane Creek, Illinois. Thus, this study examined stream community composition and food-chain length to ascertain the effects of water quality differences resulting from agricultural land-use practices. The four sites chosen for this study on Hurricane Creek were sampled four times …
Seasonal Movements And Habitat Selection Of Raccoons In A Grassland-Agricultural Landscape, Roberta K. Newbury
Seasonal Movements And Habitat Selection Of Raccoons In A Grassland-Agricultural Landscape, Roberta K. Newbury
Masters Theses
Raccoon (Procyon lotor) populations are very high in Illinois due in part to low pelt value and reduced hunting pressure (Gehrt et al., 2002); furthermore, Illinois' agricultural landscape is conducive to high raccoon densities. Such agricultural areas are known to provide a large, reliable food source for raccoons (Pedlar et al., 1997), and higher predator abundance (e.g. raccoons) at northern latitudes may reflect a greater abundance in cropland (Dijak and Thompson, 2000). Other factors known to increase raccoon numbers are edge effects due to habitat fragmentation and the suppression or eradication of top predators (Soulé et al., 1988; Pedlar et …
Benthic Algal Community Structure And Bioaccumulation Of Mercury In A Coastal Watershed, Lucie Novoveska
Benthic Algal Community Structure And Bioaccumulation Of Mercury In A Coastal Watershed, Lucie Novoveska
Masters Theses
Largemouth bass in the Fish River watershed of coastal Alabama are known to contain relatively high concentrations of mercury (>1 µg g¹). g the source of which is unknown. I used benthic microalgal assemblages in effort to assess spatial distribution of mercury in the Fish River and its tributaries. Artificial substrates were deployed for 3-week exposure periods at 13 sites on 4 separate occasions. When analyzed by cold vapor atomic absorption spectroscopy. mercury concentrations in periphyton ranged from 0.066 µg g (Pensacola Branch) to 0.493 µg g¹ (Barner Branch). Principal component analysis indicated that physical and chemical environments among …
Resilience Of An Amphibian Community Following The Removal Of Introduced Fish, Leroy J. Walston
Resilience Of An Amphibian Community Following The Removal Of Introduced Fish, Leroy J. Walston
Masters Theses
Introduced species have become one of the most important anthropogenic impacts in aquatic ecosystems and are implicated in the declines of many native amphibian populations. Despite the effects of introduced species on amphibian populations, there is little information concerning the responses of amphibians following the removal of introduced fish. I conducted a field experiment to assess the amphibian community-level responses to the removal of introduced fish, and determine the effects of fish removal on smallmouth salamander (Ambystoma texanum) larval dynamics. Species diversity of the amphibian community and smallmouth salamander juvenile recruitment improved following the removal of fish. My results indicate …
Natal Dispersal Of Beavers In The Embarras River Watershed In Central Illinois, Erin A. Cleere
Natal Dispersal Of Beavers In The Embarras River Watershed In Central Illinois, Erin A. Cleere
Masters Theses
Dispersal is an important mechanism influencing the dynamics, genetics, spatial distribution and size of wildlife populations (Gese and Mech 1991). Natal dispersal may afford individuals breeding opportunities and access to resources, while reducing inbreeding and competition with family members. However, dispersal also can be risky if mortality rates are high or if mates or suitable habitat are unavailable. When dispersal costs are high, subadults may be better off remaining in their natal territory.
Although a number of previous studies have investigated natal dispersal in beavers (Castor canadensis), conclusions regarding the percentage of subadults that disperse, timing of dispersal, evidence of …
Size And Reproductive Activity Of A Geographically-Isolated Population Of Ambystoma Jeffersonianum In East-Central Illinois, Sarabeth Klueh
Size And Reproductive Activity Of A Geographically-Isolated Population Of Ambystoma Jeffersonianum In East-Central Illinois, Sarabeth Klueh
Masters Theses
When utilizing small isolated wetlands, amphibian populations are often small in size, susceptible to stochastic extinction processes, and have little to no contact with other populations. The persistence of such populations can be ascertained only by obtaining data that allow the prediction of the population’s growth, trajectory, and propensity to achieve a sustainable size. The success of a salamander population can be determined by the number of metamorphosing larvae leaving a pond, and thus, the number recruited into the terrestrial adult population. The Jefferson salamander, Ambystoma jeffersonianum, is a state-threatened species, occurring at fewer than 15 ponds within Illinois. In …
Molecular Identification Of Anopheles Spp. (Diptera: Culicidae) In The Chapare/Carrasco Valleys, Cochabamba, Bolivia, Corey Brelsfoard
Molecular Identification Of Anopheles Spp. (Diptera: Culicidae) In The Chapare/Carrasco Valleys, Cochabamba, Bolivia, Corey Brelsfoard
Masters Theses
Studies on malaria in our "backyard," the Neotropics, have been hampered by the lack of an accurate means of species identification for mosquito vectors of the human malaria parasite (i.e. Plasmodium spp). Mosquitoes in the genus Anopheles are the principle malaria vectors in the Neotropics and are often composed of closely related morphologically similar species complexes. This thesis describes three polymerase chain reaction (PCR) protocols to aid in identifying four anopheline mosquitoes for any life stage, of which three have been incriminated as vectors of human malaria in several locations throughout S. America and might be potential vectors of human …
An Evaluation Of Beaver Habitat Models For Illinois Rivers, Daniel R. Cox
An Evaluation Of Beaver Habitat Models For Illinois Rivers, Daniel R. Cox
Masters Theses
Beavers (Castor canadensis) are agents of landscape change, altering the structure and species composition of vegetative communities through herbivory and water impoundment. To better manage beavers in Illinois, improved methods of monitoring riverine populations of this species are needed. The objectives of the study were to (1) locate, map and quantify the spatial distribution of beaver colonies along the Embarras River, (2) test the efficacy of 2 existing beaver habitat models, the U.S. Fish and Wildlife Service's Habitat Suitability Index (HSI) model and Missouri's beaver habitat model, for predicting the relative density of beavers and (3) develop a new multiple …
The Effects Of Habitat Quality On Abiotic Factors And Heterotrophic Microbial Activity In A Freshwater Stream System, Daphne Kampinga
The Effects Of Habitat Quality On Abiotic Factors And Heterotrophic Microbial Activity In A Freshwater Stream System, Daphne Kampinga
Masters Theses
Much of the Midwest, as well as Illinois' landscape, has largely been transformed from its original habitat of prairie, savanna, wetlands, and forest into corn and soybean fields and urban areas. As a result, less than 1% of the original habitat in Illinois remains intact today. These modifications can lead to habitat fragmentation and affect riparian zone vegetation, which is an important link between the land-water interface and influences processes such as organic matter inputs and water temperature regimes. As a result of fragmentation, riparian zone loss has occurred and catchment vegetation associated with streams can vary from agricultural fields, …
Landscape Effects On Stream Water Chemistry And Benthic Productivity In An Agricultural Watershed, Shari E. Fanta
Landscape Effects On Stream Water Chemistry And Benthic Productivity In An Agricultural Watershed, Shari E. Fanta
Masters Theses
A conceptual model was developed and utilized to investigate the influence of land use/land cover on community metabolism as mediated by stream water chemistry, in an agricultural watershed in east-central Illinois. A suite of physical and chemical variables were sampled over a yearlong period at twelve sites across the Hurricane Creek Watershed. Community metabolism was determined at five of the sites during episodes of suitable hydrologic and weather conditions. A single PCA axis was unique in incorporating significant relationships between land use/land cover, stream water chemistry, as well as community metabolism, thereby validating the conceptual model. The proportion of cropland, …
Copulatory Behaviors Of Male Caribbean Fruit Flies (Anastrepha Suspensa) And Female Sperm Storage Patterns, Holly J. Wallace
Copulatory Behaviors Of Male Caribbean Fruit Flies (Anastrepha Suspensa) And Female Sperm Storage Patterns, Holly J. Wallace
Masters Theses
Countless numbers of insects have copulatory behaviors performed while in copulation. Copulatory behaviors or copulatory courtship performed by males may be a means to influence female sperm storage patterns. Sexual selection in regards to female processes that influence male reproductive success are termed "cryptic female choice." In my thesis I examined copulatory behaviors performed by mass-reared male Anastrepha suspensa and sperm storage patterns in relation to male behavioral performance in females. I videotaped copulating virgin males and females of different ages and recorded mating duration, size of both sexes, male proboscis extensions, male probing of the females' head, thorax and …
Plant Species Turnover As A Mechanism Of Community Change In Response To Biotic And Abiotic Perturbation, Kathryn Anne Yurkonis
Plant Species Turnover As A Mechanism Of Community Change In Response To Biotic And Abiotic Perturbation, Kathryn Anne Yurkonis
Masters Theses
Plant communities change through time as species respond to changes in their biotic and abiotic environment. Biotic factors influencing plant communities can include species invasion, competition, or herbivory, whereas abiotic factors can include drought, fire, or nutrient deposition. Although factors influencing community structure have been extensively documented, the mechanisms by which communities respond to disturbances are not well understood. To address this problem, my thesis research considered two perturbations, exotic species invasion and drought, in each case I specifically relate species turnover to changes in community structure. The overall goal of this project was to evaluate the utility of using …
Diet Composition Of Juvenile Fish Reflects Adaptation To Altered Prey Communities In A Reservoir Receiving Thermal Effluent, Brian A. Metzke
Diet Composition Of Juvenile Fish Reflects Adaptation To Altered Prey Communities In A Reservoir Receiving Thermal Effluent, Brian A. Metzke
Masters Theses
Survival, and ultimately recruitment. of planktivorous juvenile fish is related to prey availability. Temperature regime and introduction of exotic species can change zooplankton community dynamics and alter trophic relationships between juvenile fish and their prey. Newton Lake, located in Jasper County, Illinois is used as a cooling reservoir for a coal burning power plant. Thermal effluent produced by the power plant is released into only one of two reservoir arms creating a temperature gradient. Newton Lake also contains Daphnia lumholtzi, an exotic zooplankter thought to create feeding difficulties for gape-limited predators like juvenile fish. It is within the context of …
Development And Characterization Of Monoclonal Antibodies Directed Against Tanapox Virus, Michael Franz
Development And Characterization Of Monoclonal Antibodies Directed Against Tanapox Virus, Michael Franz
Masters Theses
The initial symptoms of a Tanapoxvirus (TPV) infection are indistinguishable from smallpox, which is caused by variola virus (VV). In the post-9/11 area, reagents that can quickly differentiate a TPV infection from smallpox are very desirable, but currently unavailable. Monoclonal antibodies (mAbs) directed specifically against TPV can be used for this purpose. Six mAbs were developed and characterized that specifically bind to TPV infected owl monkey kidney (OMK) cells, but not uninfected cells. The apparent molecular mass of the TPV protein(s) recognized by 5 mAbs were calculated using the Western blot technique. One mAb demonstrated no binding using the Western …
Mechanism Of Chromium Reduction Of Benzo[A]Pyrene Diolepoxide Mutagenesis In Human Fibroblasts, Cara Suzanne Kriss
Mechanism Of Chromium Reduction Of Benzo[A]Pyrene Diolepoxide Mutagenesis In Human Fibroblasts, Cara Suzanne Kriss
Masters Theses
Environmental agents can cause an increase in cellular stress and damage DNA which can lead to diseases such as cancer. Chromium produces cellular stress by increasing the reactive oxygen species through a Fenton-like reaction, where chromium reacts with hydrogen peroxide to form hydroxyl radicals. Benzo[ a ]pyrene is an environmental carcinogen that is metabolized by cytochrome p450 enzymes into benzo[a]pyrene diolepoxide (BPDE). BPDE is highly reactive with DNA producing large DNA-adducts primarily on guanine nucleotides. The primary intracellular pathway by which mammalian cells remove damaged DNA caused by bulky mutagens is nucleotide excision repair. We have found that, in BPDE …
The Effects Of Differing Bicycle Frame Geometry On Muscle Recruitment Strategies And Power During A 30-Second Wingate Anaerobic Test, Patrick Hills-Meyer
The Effects Of Differing Bicycle Frame Geometry On Muscle Recruitment Strategies And Power During A 30-Second Wingate Anaerobic Test, Patrick Hills-Meyer
Masters Theses
The purpose of this study was to test how changing the bicycle frame geometry; from a shallow frame geometry [seat tube angle (STA) of 72°] to a steep frame geometry (STA of 82°) affected the electromyographic (EMG) signal of the hamstrings [biceps femoris (BF) and semitendinosus (ST) muscles] and the quadriceps [vastus medialis (VM) and vastus lateralis (VL)] and power (max, mean, min, and, % drop) during a Wingate anaerobic test (WAT). To measure the muscle recruitment and power, 12 experienced triathletes were prepped with surface electrodes to measure EMG amplitude and an electrogoniometer to measure knee joint angle while …
Strengthening Of Corrugated Boards By Chemical Impregnation, Rajesh Premnarayansingh
Strengthening Of Corrugated Boards By Chemical Impregnation, Rajesh Premnarayansingh
Masters Theses
Linerboards are used for making corrugated boards. The paperboards can be strengthened by adding strength additives at the wet-end of the paper machine and also by sizing them. Impregnation is another effective approach of strengthening the paperboards, mostly offline. The aim of the thesis is to evaluate the performance of the modified Dixon coater and check the operating conditions with various chemicals used for impregnating 42 lb/1000 sq.ft grammage linerboard.
The major conclusions of the research were that the edge compression strength increases markedly validating the usage of impregnation for linerboards. Also, the stiffness of linerboard increases and the voids …
Seasonal Use Of An Abandoned Mine And Summer Maternity Roost By Northern Bats (Myotis Septentrionalis), Heather Rae Fraser
Seasonal Use Of An Abandoned Mine And Summer Maternity Roost By Northern Bats (Myotis Septentrionalis), Heather Rae Fraser
Masters Theses
No abstract provided.
Physiological Performance Of Thamnophis Hammondii Is Not Affected After Eating The Toxic Frog Xenopus Laevis, C. Drew Foster
Physiological Performance Of Thamnophis Hammondii Is Not Affected After Eating The Toxic Frog Xenopus Laevis, C. Drew Foster
Masters Theses
No abstract provided.
Factors Affecting The Mate Guarding Behavior In Japanese Beetles (Popillia Japonica Newman), Yoriko Saeki
Factors Affecting The Mate Guarding Behavior In Japanese Beetles (Popillia Japonica Newman), Yoriko Saeki
Masters Theses
No abstract provided.
Impacts Of Agricultural Landscapes On The Breeding Biology And Behavioral Ecology Of Grassland Birds, Susan Allison Linn
Impacts Of Agricultural Landscapes On The Breeding Biology And Behavioral Ecology Of Grassland Birds, Susan Allison Linn
Masters Theses
No abstract provided.
Eastern Box Turtle (Terrapene C. Carolina) As A Dispersal Vector Of Seeds And Spores, William J. Jordan
Eastern Box Turtle (Terrapene C. Carolina) As A Dispersal Vector Of Seeds And Spores, William J. Jordan
Masters Theses
No abstract provided.
Changing Turtle Communities Of The Illinois River, Steven J. Paglia
Changing Turtle Communities Of The Illinois River, Steven J. Paglia
Masters Theses
No abstract provided.
Pathogenicity Of Xanthomonas Axonopodis Pv. Glycines, The Causative Agent Of Bacterial Pustule In Soybeans, Lopa D. Goradia
Pathogenicity Of Xanthomonas Axonopodis Pv. Glycines, The Causative Agent Of Bacterial Pustule In Soybeans, Lopa D. Goradia
Masters Theses
No abstract provided.
Role Of Demethylation And Hyperacetylation In [Alpha]1-Antitrypsin Gene Activation, Ling Tian
Role Of Demethylation And Hyperacetylation In [Alpha]1-Antitrypsin Gene Activation, Ling Tian
Masters Theses
No abstract provided.
Diatom Assemblages Reflect Environmental Heterogeneity In An Urban Stream, Kristen M. Thomas
Diatom Assemblages Reflect Environmental Heterogeneity In An Urban Stream, Kristen M. Thomas
Masters Theses
No abstract provided.
Generating Icc Output Profiles For Different Printing Devices: Application To A Shinohara Offset Press, Tektronix And Hp Designjet, Srinivasa Raju Alluri
Generating Icc Output Profiles For Different Printing Devices: Application To A Shinohara Offset Press, Tektronix And Hp Designjet, Srinivasa Raju Alluri
Masters Theses
The most important issue in the current printing industry is managing the perfect color reproduction. Hence, the importance of color management in the printing industry is increasing day by day. Color management saves time and money for color users. With the help of color management, benefits such as accurate onscreen color, output device simulation, gamut checking, and color consistency between devices will reduce the amount of time and materials required to complete color production tasks.
The main purpose of this thesis is to develop ICC profiles and to compare the print quality of ICC profiles generated for different printing devices, …
Generating Icc Output Profiles For Different Substrates: Application To A Shinohara Offset Press & Several Printers, Kailashnath Jaganathrao Pohnerkar
Generating Icc Output Profiles For Different Substrates: Application To A Shinohara Offset Press & Several Printers, Kailashnath Jaganathrao Pohnerkar
Masters Theses
The International Color Consortium (ICC) was formed to undertake problems in achieving reliable and reproducible color throughout the reproduction process; the ICC Profile Specification offers solutions to color matching and quality. Problems with the ICC Profile relate to tools in the field, output devices, various substrates, profile calculation processes and color accuracy.
A color management system (CMS), developed by International Color Consortium, allows color transformation to be carried out by the operating system in conformity. ICC profiles describe the color range of a device and the way it distorts the color of an image. The profiling software is required to …