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- Title
- With a Finned-Hat to Lower Head’s Surface Temperature: Let the Cool Head Prevail.
- Creator
- Krupinski, Danielle, Su, Tsung-Chow
- Abstract/Description
-
FAU's Office of Undergraduate Research and Inquiry hosts an annual symposium where students engaged in undergraduate research may present their findings either through a poster presentation or an oral presentation.
- Date Issued
- 2011
- PURL
- http://purl.flvc.org/fau/fd/FA00005439
- Format
- Document (PDF)
- Title
- What Controls The Nocturnal Emergence Rhythm Of Hatchling Marine Turtles?.
- Creator
- Prio, Joseph D., Salmon, Michael, Graduate College
- Abstract/Description
-
Most marine organisms partition particular activities, such as growth, migration, reproduction, and hatching, to particular seasons, times of the day or night, or phases of the lunar cycle. The result is characterized as a “rhythm”. Scientists who study these rhythms generally ask two kinds of questions: why do they occur when they do that is, what is their survival value, and how are they controlled, physiologically? Hatchling marine turtles almost always emerge from their nests at night,...
Show moreMost marine organisms partition particular activities, such as growth, migration, reproduction, and hatching, to particular seasons, times of the day or night, or phases of the lunar cycle. The result is characterized as a “rhythm”. Scientists who study these rhythms generally ask two kinds of questions: why do they occur when they do that is, what is their survival value, and how are they controlled, physiologically? Hatchling marine turtles almost always emerge from their nests at night, then crawl down the beach to the sea and migrate offshore. By doing so at night they avoid lethally warm beach sands and diurnally active predators in the shallows. But these “survival value” explanations do not account for how the turtles, digging their way upward inside the nest toward the beach surface, know that it’s dark and time to emerge. The classic explanation for how they “know” is based upon surface sand temperatures. During the day, these sands can be very warm 50° C. When hatchlings digging upward encounter these heated sands, they stop digging until the sand cools, after sunset. But these observations fail to explain why in most studies, hatchlings rarely emerge from their nests at dawn or in the early morning, when the sand is still cool. To account for those observations, we hypothesize that the turtles must also possess a time sense that inhibits emergence during inappropriate times, such as shortly before or after sunrise.
Show less - Date Issued
- 2015
- PURL
- http://purl.flvc.org/fau/fd/FA00005909
- Format
- Document (PDF)
- Title
- Whale of a Table: A Tail of Problem to Product.
- Creator
- Immerblum, Jason, Buono, Armand, Fox, Robert, Rosser, Christopher
- Abstract/Description
-
FAU's Office of Undergraduate Research and Inquiry hosts an annual symposium where students engaged in undergraduate research may present their findings either through a poster presentation or an oral presentation.
- Date Issued
- 2011
- PURL
- http://purl.flvc.org/fau/fd/FA00005435
- Format
- Document (PDF)
- Title
- Voices of couples affected by Alzheimer's disease.
- Creator
- Bonorandi, Andrea, Williams, Christine L.
- Date Issued
- 2013-04-05
- PURL
- http://purl.flvc.org/fcla/dt/3361072
- Subject Headings
- Alzheimer's disease, Alzheimer's disease--Family relationships, Communication
- Format
- Document (PDF)
- Title
- Visualization of salt fingers and double diffusive convection.
- Creator
- Tsai, Christina, Su, Tsung-Chow
- Date Issued
- 2013-04-05
- PURL
- http://purl.flvc.org/fcla/dt/3361217
- Subject Headings
- Ocean mixing, Diffusion, Convection (Meteorology)
- Format
- Document (PDF)
- Title
- Vegetation Community Changes in Response to Hydrology at the A.R.M. Loxahatchee National Wildlife Refuge.
- Creator
- Kepley, Janna Ellis, Hindle, Tobin, Graduate College
- Abstract/Description
-
A spatial analysis of vegetation community changes over time at the Arthur R. Marshall National Loxahatchee Wildlife Refuge will be conducted in order to identify relationships with variations in water level and water quality. The analysis will use existing current and historical data in the refuge, including water gages, vegetation surveys, fire burn data, Lidar based digital elevation data and aerial photography acquired from the United States Fish and Wildlife Service, Everglades Depth...
Show moreA spatial analysis of vegetation community changes over time at the Arthur R. Marshall National Loxahatchee Wildlife Refuge will be conducted in order to identify relationships with variations in water level and water quality. The analysis will use existing current and historical data in the refuge, including water gages, vegetation surveys, fire burn data, Lidar based digital elevation data and aerial photography acquired from the United States Fish and Wildlife Service, Everglades Depth Estimation Network EDEN, South Florida Water Management District and other sources. Understanding how vegetation boundaries and dominant species shift over time in response to water level changes and other hydrological factors will allow the National Wildlife Refuge, and other scientists, to create more responsive conservation and maintenance plans for the wetland refuge.
Show less - Date Issued
- 2015
- PURL
- http://purl.flvc.org/fau/fd/FA00005889
- Format
- Document (PDF)
- Title
- Variable pitch propeller design tool development.
- Creator
- Neal, Michael C., Nunes, Christopher, Vidal, Raul, An, Edgar
- Date Issued
- 2012-04-06
- PURL
- http://purl.flvc.org/fcla/dt/3349038
- Subject Headings
- Variable Pitch Propellers, Propulsion System Performance, Propeller Blades, Design Engineering, Computer Simulation
- Format
- Document (PDF)
- Title
- Utilizing Hyperspectral Reflectance to Analyze Sand Composition.
- Creator
- Smith, Molly E., Selch, Donna, Graduate College
- Abstract/Description
-
Spectral signatures quickly aid the analysis of sand composition because specific wavelengths correspond with distinct minerals. This provides objectivity to traditional microscopic methods, with the option to create a custom spectral library for Hyperspectral Remote Sensing HRS applications. Removal of salt as a precipitated solid from sea water is useful for clearer microscopic viewing of sand because certain grains are less likely to be misidentified as crystalized salt. Though removal of...
Show moreSpectral signatures quickly aid the analysis of sand composition because specific wavelengths correspond with distinct minerals. This provides objectivity to traditional microscopic methods, with the option to create a custom spectral library for Hyperspectral Remote Sensing HRS applications. Removal of salt as a precipitated solid from sea water is useful for clearer microscopic viewing of sand because certain grains are less likely to be misidentified as crystalized salt. Though removal of salts aids in qualitative visual identification, it is problematic for studies requiring spectral reflectance data to match real-life conditions. Spectroradiometric techniques were used to assess the effects of salt in spectral signatures of sand. Sand samples of mixed siliciclastic-carbonate composition were collected from 15 locations across the southeastern Florida coast. Spectral plots were generated from laboratory collected data with an ASD Spectroradiometer. Spectral data was collected before and after samples were prepared for microscopic study. Laboratory-prepared samples show negative slope at approximately 1500 nm and 2000 nm ranges on the generated plots. These wavelengths are indicative of grains having either predominately carbonate or siliciclastic compositions, which agrees with the microscopic analysis. Salts present in a sample affect the spectral signature, thus salt removal yields spectral plots not necessarily concurrent with plots generated from raw, unprepared samples. For studies utilizing airborne HRS data, the order of data collection and preparation is important. To ensure a more precise match between the spectral library and the hyperspectral imagery, spectral data must be collected before the sample is prepared for microscopic analysis.
Show less - Date Issued
- 2015
- PURL
- http://purl.flvc.org/fau/fd/FA00005913
- Format
- Document (PDF)
- Title
- Using the general mental ability test scores as predictors of NFL QB performance.
- Creator
- Metzger, Mike, Bernardin, Harold John
- Date Issued
- 2013-04-05
- PURL
- http://purl.flvc.org/fcla/dt/3361155
- Subject Headings
- Quarterbacks (Football), Cognitive Abilities Test, National Football League
- Format
- Document (PDF)
- Title
- Using digital collections for research, teaching, and scholarship.
- Creator
- Ress, Sunghae
- Abstract/Description
-
This poster presentation will illustrate how digital collections add value to the scholarly communication chain by supporting research, teaching, and scholarship in several ways: 1) increase access to primary materials, 2) increase access to special collections and archives 3) increase access to local materials of historical, cultural, and artistic significance 4) expand open access 5) foster collaboration with faculty and students 6) increase the reputation and visibility of your university...
Show moreThis poster presentation will illustrate how digital collections add value to the scholarly communication chain by supporting research, teaching, and scholarship in several ways: 1) increase access to primary materials, 2) increase access to special collections and archives 3) increase access to local materials of historical, cultural, and artistic significance 4) expand open access 5) foster collaboration with faculty and students 6) increase the reputation and visibility of your university and library. I will use specific examples from the Florida Atlantic University Digital Collections to “show and tell” and include the importance of creating metadata to enhance discovery and access to your digital collections. In addition, this poster will very briefly touch upon digital sustainability; mainly that of ensuring ongoing access to digital collections and ensuring long term preservation of these same materials.
Show less - Date Issued
- 2014
- PURL
- http://purl.flvc.org/fau/fd/FA00002897
- Subject Headings
- Scholarly communication, Research, Teaching, Learning and scholarship, Open access
- Format
- Document (PDF)
- Title
- Using ATR-IR spectroscopy to study the conformation of cell-penetrating peptides.
- Creator
- Fontoura, Luiza, Rezler, Evonne
- Date Issued
- 2012-04-06
- PURL
- http://purl.flvc.org/fcla/dt/3351389
- Subject Headings
- Cell-Penetrating Peptides, Antennapedia Homeodomain Protein, Homeodomain Proteins --chemistry, Spectroscopy, Fourier Transform Infrared --methods, Spectrum Analysis, Amides --chemistry, Carrier Progeins
- Format
- Document (PDF)
- Title
- Using an immunohistochemical approach to identify the sex of marine turtles.
- Creator
- Tezak, Boris, Wyneken, Jeanette, Graduate College
- Abstract/Description
-
Marine turtles exhibit temperature-dependent sex determination (TSD). During critical periods of embryonic development, the nest’s thermal environment directs whether an embryo will develop as a male or a female. At warmer sand temperatures the nest tends to produce female-biased sex ratios. The rapid increase of global temperature highlights the need for a clear assessment of effects on sea turtle sex ratios. However, identifying hatchling sex ratios at rookeries remain coarse estimates due...
Show moreMarine turtles exhibit temperature-dependent sex determination (TSD). During critical periods of embryonic development, the nest’s thermal environment directs whether an embryo will develop as a male or a female. At warmer sand temperatures the nest tends to produce female-biased sex ratios. The rapid increase of global temperature highlights the need for a clear assessment of effects on sea turtle sex ratios. However, identifying hatchling sex ratios at rookeries remain coarse estimates due to the lack of any external gender markers. We rely mainly upon laparoscopic procedures to verify a hatchling sex; however, in some species, morphological sex can be ambiguous even at the histological level. Recent studies using immunohistochemical techniques identified that red-eared slider (Trachemys scripta) embryos over-expressed a particular cold-induced RNA binding protein in the ovaries in comparison to the testes. This principle allows the distinction between females and males. We developed a variation of this technique and successfully identified the sexes of loggerhead sea turtle (Caretta caretta) hatchlings, as confirmed by standard histological and laparoscopic methods that reliably identifies the sex in this species. Next, we tested a more challenging species, the leatherback turtle (Dermochelys coriacea), which retains many neotenic features. The morphology of leatherback hatchling gonads remains difficult to interpret, particularly when dead-in-nest hatchlings and embryos are the source tissues. In summary, this new and more efficient technique enhances our ability to investigate and identify baseline hatchling sex ratios, a critical progression in assessing global climate change on sea turtle populations.
Show less - Date Issued
- 2015
- PURL
- http://purl.flvc.org/fau/fd/FA00005915
- Format
- Document (PDF)
- Title
- Use Of Molecular Techniques To Understand The Spatial And Temporal Features Of The Oceanic Stage In Hawksbill Sea Turtles, Eretmochelys Imbricata; A Thesis Proposal.
- Creator
- Coppenrath, Christina, Salmon, Michael, Graduate College
- Abstract/Description
-
For highly migratory species, it is important to understand what habitats are used and what requirements are essential for growth and development. These migrations often span different political and regulatory boundaries, complicating conservation strategies. The hatchlings and post-hatchlings of most sea turtle species migrate to oceanic habitats where they remain for several years before returning to shallow developmental habitats. For critically endangered hawksbill turtle, Eretmochelys...
Show moreFor highly migratory species, it is important to understand what habitats are used and what requirements are essential for growth and development. These migrations often span different political and regulatory boundaries, complicating conservation strategies. The hatchlings and post-hatchlings of most sea turtle species migrate to oceanic habitats where they remain for several years before returning to shallow developmental habitats. For critically endangered hawksbill turtle, Eretmochelys imbricata, most research has concentrated on nesting ecology and very little is known about the posthatchling migration. Many sea turtles then spend years in different foraging habitats before reaching sexual maturity, and such foraging grounds typically represent a mixed stock of turtles from different nesting beaches. Mitochondrial DNA analysis can be used to estimate genetic stock structure of mixedstock foraging populations for sea turtles, and the duration of the post-hatchling oceanic stage can be estimated using stable isotope analysis and satellite telemetry. Our objectives are to determine the duration of the post-hatchling oceanic stage of development, to determine if the turtles sampled in a particular foraging habitat represent a biased or unbiased assortment of matrilineages, and to infer potential migratory pathways by investigating ocean currents between nesting beaches and the foraging site. Here we discuss our methods, to determine the duration of the post-hatchling oceanic stage and stock structure for immature hawksbills at a developmental foraging ground.
Show less - Date Issued
- 2015
- PURL
- http://purl.flvc.org/fau/fd/FA00005873
- Format
- Document (PDF)
- Title
- Unconscious Plagiarism in Young and Older Adults.
- Creator
- Rowell, Shaina, Earles, Julie, Kersten, Alan, Tornopsky, C.
- Abstract/Description
-
FAU's Office of Undergraduate Research and Inquiry hosts an annual symposium where students engaged in undergraduate research may present their findings either through a poster presentation or an oral presentation.
- Date Issued
- 2011
- PURL
- http://purl.flvc.org/fau/fd/FA00005448
- Format
- Document (PDF)
- Title
- Travel-time Based Signal Performance Measures (TTSPM).
- Creator
- Petrovska, Natasha, Stevanovic, Aleksandar, Graduate College
- Abstract/Description
-
Vehicle travel time on arterial roads with signalized intersections is an essential parameter for traffic management. There is an increasing interest in signal performance measurement for signalized intersections in the United States. Reducing the journey times and increasing the capacity are some of the fundamental aims with potential benefits in environmental pollution, and energy utilization. The Travel-time Based Signal Performance Measures application is a tool for estimating signal...
Show moreVehicle travel time on arterial roads with signalized intersections is an essential parameter for traffic management. There is an increasing interest in signal performance measurement for signalized intersections in the United States. Reducing the journey times and increasing the capacity are some of the fundamental aims with potential benefits in environmental pollution, and energy utilization. The Travel-time Based Signal Performance Measures application is a tool for estimating signal performance measures based on upstream-link travel times. The application utilizes well known concept of Volume- Delay Functions to convert measured travel times into signal performance measures. Based on this functionality, it can estimate the performance measures for 7 signalized intersections on Glades Road, Boca Raton, Florida. Available performance measures for the major through movements are: volumeto- capacity ratio, Level of Service LOS, and the number of cycles to wait. The derived measures can be graphically visualized on Google Maps. The travel time data acquisition is performed using BlueTOAD devices. The goal is to introduce automated assessment tool, visualization and evaluation of the intersections’ performance measures simultaneously at multiple intersections. The main objective of this web application is to help traffic operators/engineers to evaluate performance of the signalized corridors exploiting the archived measured travel times.
Show less - Date Issued
- 2015
- PURL
- http://purl.flvc.org/fau/fd/FA00005907
- Format
- Document (PDF)
- Title
- TLR agonists differentially induce maturation of nicotine-exposed dendritic cell.
- Creator
- Tamjidi, Saba, Nourishirazi, Erika, Graduate College, Bible, Brittany, Zeng, Menghua, Nouri-Shirazi, Mahyar
- Abstract/Description
-
Background: Vaccines aid in saving lives from infections and biological warfare attacks. They should be effective in all target populations otherwise the likelihood that an unprotected person will transmit disease to a vulnerable individual is greatly increased. There is compelling evidence that smokers are less responsive to vaccination. We have reported that both therapeutic and prophylactic vaccines fail to protect and cure animals from disease due to negative effects of nicotine in...
Show moreBackground: Vaccines aid in saving lives from infections and biological warfare attacks. They should be effective in all target populations otherwise the likelihood that an unprotected person will transmit disease to a vulnerable individual is greatly increased. There is compelling evidence that smokers are less responsive to vaccination. We have reported that both therapeutic and prophylactic vaccines fail to protect and cure animals from disease due to negative effects of nicotine in biological activities of DCs. Using in vitro mouse culture system we have identified an appropriate TLR agonist capable of correcting the defects in DCs exposed to nicotine. Hypothesis: In order to translate these studies to human, we tested the hypothesis that appropriate TLR agonists will also correct the degrading effects of nicotine on human DCs and consequently DC-NK cross talk and T cell polarization. Methods: Monocyte-derived DCs were generated in culture media containing growth factors GM-CSF and IL-4 with or without nicotine treatment. DCs were activated with indicated TLR agonists and their phenotypes and cytokine profiles were analyzed by flow cytometry and ELISA, respectively. Results: Among the TLR agonists tested, we found that nicotine has less effect on human DC maturation in response to TLR4 plus TLR7/8 agonists as evidenced by expression levels of their costimulatory CD80/83/86/40 and antigen-presenting HLA-DR molecules as well as inflammatory cytokines IL-12, IL-10,TNF-α and IL-1β production. Conclusion: We are currently investigating whether these TLR agonists also augment human DC-NK bidirectional signals essential for T cell differentiation in a nicotinic environment.
Show less - Date Issued
- 2014
- PURL
- http://purl.flvc.org/fau/fd/FA00005169
- Format
- Document (PDF)
- Title
- Tissue-specific requirement of the autophagy gene atg-18 in controlling C. elegans dauer morphogenesis, fat metabolism and adult longevity.
- Creator
- Minnerly, Justin, Zhang, Jiuli, Graduate College, Jia, Kailiang
- Abstract/Description
-
The conserved insulin growth factor IGF signaling pathway is one of the major regulators of lifespan in many species including C. elegans. In C. elegans the insulin/IGF-like receptor is encoded by the daf-2 gene, mutations in which result in lifespan extension, fat accumulation and dauer formation. The daf-2 activity in the nervous system controls these phenotypes cell non-autonomously. Interestingly, the longevity phenotype of daf-2 mutant worms is dependent on macroautophagy hereafter...
Show moreThe conserved insulin growth factor IGF signaling pathway is one of the major regulators of lifespan in many species including C. elegans. In C. elegans the insulin/IGF-like receptor is encoded by the daf-2 gene, mutations in which result in lifespan extension, fat accumulation and dauer formation. The daf-2 activity in the nervous system controls these phenotypes cell non-autonomously. Interestingly, the longevity phenotype of daf-2 mutant worms is dependent on macroautophagy hereafter autophagy. Autophagy is a highly conserved lysosomal degradation pathway involved in the removal of long-lived proteins and cytoplasmic organelles. During autophagy, cellular components are sequestered into the double-membrane autophagosomes and delivered to lysosomes for degradation. Increasing evidence has emerged that the autophagy process is a central regulator of lifespan that is required for the effects of DAF-2 signaling, dietary restriction and some mitochondrial mutations on C. elegans longevity. It is unknown however whether autophagy activity in every tissue or in a single tissue mediates the influence of these longevity signals. To address this question, we examined the tissue requirement of autophagy gene atg-18 for the lifespan of wild type animals and the daf-2 mutant. We discovered that neurons and intestinal cells are two key tissues where atg-18 mediates the effect of DAF-2 insulin-like signaling on lifespan, fat accumulation and dauer morphogenesis, suggesting autophagy acts cell non-autonomously in controlling C. elegans dauer formation, fat metabolism and adult longevity.
Show less - Date Issued
- 2014
- PURL
- http://purl.flvc.org/fau/fd/FA00005160
- Format
- Document (PDF)
- Title
- THP-1 Monocyte Differentiation and Activation.
- Creator
- Blaise, Danice, Hartmann, James X.
- Abstract/Description
-
FAU's Office of Undergraduate Research and Inquiry hosts an annual symposium where students engaged in undergraduate research may present their findings either through a poster presentation or an oral presentation.
- Date Issued
- 2011
- PURL
- http://purl.flvc.org/fau/fd/FA00005429
- Format
- Document (PDF)
- Title
- The synergistic effects of concurrent stress on the inflammatory response in healthy individuals.
- Creator
- McAlpine, David, Huang, Chun-Jung
- Date Issued
- 2012-04-06
- PURL
- http://purl.flvc.org/fcla/dt/3349030
- Subject Headings
- Pentraxin 3, Inflammation, PTX3 protein, Vascular Diseases, Blood Vessels, C-Reactive Protein, Inflammation --blod, Parasympathetic Nervous System, Stress --psychological
- Format
- Document (PDF)
- Title
- The South Florida life sciences industry cluster: a regional innovation system (RIS) approach.
- Creator
- Vizcardo, Gonzalo, Oner, Asli Ceylan
- Date Issued
- 2013-04-05
- PURL
- http://purl.flvc.org/fcla/dt/3361223
- Subject Headings
- Industrial clusters, Knowledge economy, Florida
- Format
- Document (PDF)