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2007

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Commencement Convocation Program, St. Petersburg Campus, December 18, 2007, University Of South Florida Dec 2007

Commencement Convocation Program, St. Petersburg Campus, December 18, 2007, University Of South Florida

USF Graduation and Convocation Programs

Regional Chancellor's Award for Civic Leadership - Roy Harrell; Outstanding Graduate - Brenda Mettetal

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Towards An Understanding Of Salient Neighborhood Boundaries: Adolescent Reports Of An Easy Walking Distance And Convenient Driving Distance, Natalie Colabianchi, Marsha Dowda, Karin A. Pfeiffer, Dwayne E. Porter, Maria João C. A. Almeida, Russell R. Pate Dec 2007

Towards An Understanding Of Salient Neighborhood Boundaries: Adolescent Reports Of An Easy Walking Distance And Convenient Driving Distance, Natalie Colabianchi, Marsha Dowda, Karin A. Pfeiffer, Dwayne E. Porter, Maria João C. A. Almeida, Russell R. Pate

Faculty Publications

Numerous studies have examined the association between the surrounding neighborhood environment and physical activity levels in adolescents. Many of these studies use a road network buffer of Euclidean distance buffer around an adolescent's home to represent the appropriate geographic area for study (i.e., neighborhood). However, little empirical research has examined the appropriate buffer size to use when defining this area and there is little consistency across published research as to the buffer size used. In this study, 909 12th grade adolescent girls of diverse racial and geographic backgrounds were asked to report their perceptions of an easy walking distance …

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Polarimetry Of Three-Dimensional Optical Fields., Aristide Dogariu, Jeremy Ellis Dec 2007

Polarimetry Of Three-Dimensional Optical Fields., Aristide Dogariu, Jeremy Ellis

UCF Patents

The apparatus, system and method of the present invention provide a three-dimensional polarimeter probe having a coupler for coupling three components of an electromagnetic field that fluctuates in three-dimensions and an emitter for re-emitting a radiation corresponding to said three components. The radiation includes a polarized and an unpolarized component of said electromagnetic field and is used to determine the elements of a field-field correlation martix. In an embodiment, the system includes a detector located a distance from said probe for sensing said re-emitted radiation from said probe and a processor for determining a polarized and an unpolarized component of …

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Rising Minimum Daily Flows In Northern Eurasian Rivers: A Growing Influence Of Groundwater In The High‐Latitude Hydrologic Cycle, Laurence C. Smith, Tamlin M. Pavelsky, Glen M. Macdonald, Alexander I. Shiklomanov, Richard B. Lammers Dec 2007

Rising Minimum Daily Flows In Northern Eurasian Rivers: A Growing Influence Of Groundwater In The High‐Latitude Hydrologic Cycle, Laurence C. Smith, Tamlin M. Pavelsky, Glen M. Macdonald, Alexander I. Shiklomanov, Richard B. Lammers

Faculty Publications

A first analysis of new daily discharge data for 111 northern rivers from 1936–1999 and 1958–1989 finds an overall pattern of increasing minimum daily flows (or “low flows”) throughout Russia. These increases are generally more abundant than are increases in mean flow and appear to drive much of the overall rise in mean flow observed here and in previous studies. Minimum flow decreases have also occurred but are less abundant. The minimum flow increases are found in summer as well as winter and in nonpermafrost as well as permafrost terrain. No robust spatial contrasts are found between the European Russia, …

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Short-Wavelength Light Sensitivity Of Circadian, Pupillary, And Visual Awareness In Humans Lacking An Outer Retina, Farhan H. Zaidi, Joseph T. Hull, Stuart N. Peirson, Katharina Wulff, Daniel Aeschbach, Joshua J. Gooley, George C. Brainard, Kevin Gregory-Evans, Joseph F. Rizzo Iii, Charles A. Czeisler, Russell G. Foster, Merrick J. Moseley, Steven W. Lockley Dec 2007

Short-Wavelength Light Sensitivity Of Circadian, Pupillary, And Visual Awareness In Humans Lacking An Outer Retina, Farhan H. Zaidi, Joseph T. Hull, Stuart N. Peirson, Katharina Wulff, Daniel Aeschbach, Joshua J. Gooley, George C. Brainard, Kevin Gregory-Evans, Joseph F. Rizzo Iii, Charles A. Czeisler, Russell G. Foster, Merrick J. Moseley, Steven W. Lockley

Department of Neurology Faculty Papers

As the ear has dual functions for audition and balance, the eye has a dual role in detecting light for a wide range of behavioral and physiological functions separate from sight. These responses are driven primarily by stimulation of photosensitive retinal ganglion cells (pRGCs) that are most sensitive to short-wavelength ( approximately 480 nm) blue light and remain functional in the absence of rods and cones. We examined the spectral sensitivity of non-image-forming responses in two profoundly blind subjects lacking functional rods and cones (one male, 56 yr old; one female, 87 yr old). In the male subject, we found …

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Dissociative-Like Spells In A Child With Neurofibromatosis (Type 1), Gregory M. Singleton M.D. (Pgy2), Ann M. Lagges Ph.D., Karen G. Meighen M.D. Dec 2007

Dissociative-Like Spells In A Child With Neurofibromatosis (Type 1), Gregory M. Singleton M.D. (Pgy2), Ann M. Lagges Ph.D., Karen G. Meighen M.D.

Jefferson Journal of Psychiatry

Neurofibromatosis, type 1, (NF1) is a common neurocutaneous disorder of childhood. Little is known about the psychiatric aspects of the condition. We present the case of a 10-year-old male with NF1 and complex spells. For two years he had been experiencing self-limited paroxysms of auditory and visual hallucination, assaultiveness, excited undressing, and amnesia. The spells have been refractory to multiple treatments, including antipsychotic medication. The question remains whether this episodic amnestic disorder is comorbid with NF1 or is caused by it.

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A Major Event Of Self-Mutilation In A Patient With Fetal Alcohol Syndrome, Joel P. Johnson M.D. (Pgy4), Steven Sugden M.D., James A. Bourgeois O.D., M.D. Dec 2007

A Major Event Of Self-Mutilation In A Patient With Fetal Alcohol Syndrome, Joel P. Johnson M.D. (Pgy4), Steven Sugden M.D., James A. Bourgeois O.D., M.D.

Jefferson Journal of Psychiatry

We describe a young adult male with fetal alcohol syndrome (FAS) who presented with a non-repetitive, major, genital self-mutilation necessitating urological intervention. On formal psychiatric evaluation, he did not have psychosis or suicidality. Most commonly, self-injury in developmental disability is less severe and more stereotypic; major-class self-mutilation is confined, generally, to psychosis. It is this discrepancy that is the unusual feature of our case.

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Clozapine, Fluoxetine, And Benztropine- Associated Ileus: Case Report, Pegah Pajouhi M.D. (Pgy1), James A. Bourgeois O.D., M.D. Dec 2007

Clozapine, Fluoxetine, And Benztropine- Associated Ileus: Case Report, Pegah Pajouhi M.D. (Pgy1), James A. Bourgeois O.D., M.D.

Jefferson Journal of Psychiatry

Gastrointestinal complications of anticholinergic medications are prevalent, potentially life-threatening, and could be more actively prevented. We present a case report of an ileus that required surgical intervention and developed in the context of clozapine, benztropine, and fluoxetine use. The case exemplifies the potential anticholinergic toxicities of clozapine and benztropine as well as possible pharmacokinetic interactions between fluoxetine, clozapine, and benztropine. We discuss ways to minimize the likelihood of anticholinergic complications with these medications.

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The Dose-Response Of Maternal Exercise Volume On Newborn And Placental Outcomes, Melisa A. Mena Dec 2007

The Dose-Response Of Maternal Exercise Volume On Newborn And Placental Outcomes, Melisa A. Mena

Open Access Dissertations

Current ACOG guidelines recommend exercise during a low-risk pregnancy for 30 minutes on most, if not all days of the week. However, little is known about how the volume of exercise performed during pregnancy affects fetoplacental size. In addition, the confounding effects of maternal nutrient intake and weight gain, and how they interact with exercise volume to influence fetoplacental size have not been appropriately addressed. Therefore, the purpose of this study was to examine the effects of varying maternal exercise volumes on neonatal birthweight and placental volume, while addressing the influence of maternal nutrient intake and weight gain. Subjects evaluated …

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Pistor V. Secretary Hhs Dec 2007

Pistor V. Secretary Hhs

2007 Decisions

USDC for the District of New Jersey

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2007 Winter Commencement Law, Nova Southeastern University Dec 2007

2007 Winter Commencement Law, Nova Southeastern University

NSU Commencement Programs

No abstract provided.

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Commencement Convocation Program, Lakeland Campus, December 17, 2007, University Of South Florida Dec 2007

Commencement Convocation Program, Lakeland Campus, December 17, 2007, University Of South Florida

USF Graduation and Convocation Programs

Outstanding Senior - Tara Crum; Distinguished Service Award - Commissioner Jack Myers

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Existence And Nonexistence Results For A Class Of Quasilinear Elliptic Systems, Said El Manouni Dec 2007

Existence And Nonexistence Results For A Class Of Quasilinear Elliptic Systems, Said El Manouni

Mathematics and System Engineering Faculty Publications

Using variational methods, we prove the existence and nonexistence of positive solutions for a class of -Laplacian systems with a parameter.

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Carbonate Facies And Sequence Stratigraphy Of The Carboniferous Lisburne Group, Upper Nanushuk River Region, Central Brooks Range, Alaska, Jesse Garnett White Dec 2007

Carbonate Facies And Sequence Stratigraphy Of The Carboniferous Lisburne Group, Upper Nanushuk River Region, Central Brooks Range, Alaska, Jesse Garnett White

Geosciences

This study documents the stratigraphy, facies, facies associations, depositional environment, sequence stratigraphy, and conodont biostratigraphy of the upper Nanushuk River section of the Lisburne Group. 1621 meters of Kayak Shale and Lisburne Group rocks were measured and studied for facies analysis. Sixteen lithofacies and eleven microfacies were identified composing six facies assemblages. Facies analysis, stacking patterns, and associations suggest that the Nansushuk River section represents a homoclinal carbonate ramp recording an intertidal (Kayak Shale) and open marine to basin transitional sequence. Facies associations, stacking patterns and marine flooding surfaces helped to delineate major sequence boundaries and maximum flooding surfaces. Six …

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Tutor Strategies In Face-To-Face And Distance Tutorial Sessions: Tutor And Student Perceptions, Carrie L. Aldrich Dec 2007

Tutor Strategies In Face-To-Face And Distance Tutorial Sessions: Tutor And Student Perceptions, Carrie L. Aldrich

Linguistics

As university populations become increasingly dependent on distance learning and support services for distance learning, writing centers progressively offer services by telephone, email, or virtual worlds in addition to the traditional face-to-face tutorials. The University of Alaska Fairbanks (UAF) Writing Center offers a "telephone tutorial" service for students from remote locations who fax their papers to a tutor who then conducts a tutorial session over the telephone. This study investigates tutor strategies in face-to-face and telephone tutorial sessions and tutor and student perceptions of effectiveness. I audio recorded 30 tutorial sessions with five tutors in six sessions each, half in …

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The Future Of Digital Library Development @ Uconn, Michael J. Bennett Dec 2007

The Future Of Digital Library Development @ Uconn, Michael J. Bennett

UConn Library Presentations

No abstract provided.

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Grand Valley Forum, Volume 032, Number 21, December 17, 2007, Grand Valley State University Dec 2007

Grand Valley Forum, Volume 032, Number 21, December 17, 2007, Grand Valley State University

2007-2008, Volume 32

Grand Valley Forum is Grand Valley State's faculty and staff newsletter, published from 1976 to the present.

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December 17, 2007 Reporter, University Of Alabama At Birmingham Dec 2007

December 17, 2007 Reporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

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From Twisted Supersymmetry To Orbifold Lattices, Simon Catterall Dec 2007

From Twisted Supersymmetry To Orbifold Lattices, Simon Catterall

Physics - All Scholarship

We show how to derive the supersymmetric orbifold lattices of Cohen et al. \cite{Cohen:2003xe,Cohen:2003qw} and Kaplan et al. \cite{Kaplan:2005ta} by direct discretization of an appropriate twisted supersymmetric Yang-Mills theory. We examine in detail the four supercharge two dimensional theory and the theory with sixteen supercharges in four dimensions. The continuum limit of the latter theory is the well known Marcus twist of {\cal N}=4 Yang-Mills. The lattice models are gauge invariant and possess one exact supersymmetry at non-zero lattice spacing.

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Habitat Use Of Pacific Herring (Clupea Pallasii) In Prince William Sound, Alaska, Seanbob R. Kelly Dec 2007

Habitat Use Of Pacific Herring (Clupea Pallasii) In Prince William Sound, Alaska, Seanbob R. Kelly

Marine Biology

To determine the spawning area contributions of Pacific herring (Clupea pallashii) larvae to nursery bays, otolith chemical analysis was conducted on juvenile fish collected from 1995 to 1997 in Prince William Sound, Alaska. The otolith edge, representing the chemical signature of the known capture location, and the otolith core, representing the unknown spawning ground chemistry, were compared with discriminant function analysis to infer spawning area origin. Chemical signatures of ⁸⁷Sr/⁸⁶Sr, ⁸⁸Sr/⁴⁸Ca, ²⁴Mg/⁴⁸Ca, and ¹³⁸Ba/⁴⁸Ca were used to identify broad spawning regions from inner and outer PWS that persisted for the three years sampling period despite significant interannual variability in otolith …

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Climate And Predictability Of Alaska Wildfires, Peter A. Bieniek Dec 2007

Climate And Predictability Of Alaska Wildfires, Peter A. Bieniek

Atmospheric Sciences

Wildfires burn an average of 3,760km² each year in Alaska, but varies greatly from year to year. These fires, started by human and natural causes, can endanger life and property when they approach populated areas. The relationship between seasonal area burned and monthly and seasonal average mean sea level pressure, surface air temperature, total column precipitable water, 500hPa and 700hPa geopotential height, 700hPa specific humidity and 1000-500hPa layer thickness is examined. The assessment was done by examining the spring and summer seasonal composites associated with extreme high and low seasons. This showed the predominant anomalies from the climatology for seasons …

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Electrical Activation Studies Of Silicon Implanted Aluminum Gallium Nitride With High Aluminum Mole Fraction, Elizabeth A. Moore Dec 2007

Electrical Activation Studies Of Silicon Implanted Aluminum Gallium Nitride With High Aluminum Mole Fraction, Elizabeth A. Moore

Theses and Dissertations

This research demonstrates a method for producing highly conductive Si-implanted n-type aluminum gallium nitride (AlxGa1-xN) alloys, and represents a comprehensive analysis of the resulting material's electrical and optical properties as a function of Al mole fraction, anneal temperature, anneal time, and implantation dose. Highly conductive alloys are critical to the fabrication of devices operating in deep UV, high-temperature, high-power, and high-frequency environments, and thus this research is significant in regard to the application of such devices. The AlxGa1-xN wafers of this study, with Al concentrations of 10 to 50%, were implanted at …

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A Unified Framework For Solving Multiagent Task Assignment Problems, Kevin Cousin Dec 2007

A Unified Framework For Solving Multiagent Task Assignment Problems, Kevin Cousin

Theses and Dissertations

Multiagent task assignment problem descriptors do not fully represent the complex interactions in a multiagent domain, and algorithmic solutions vary widely depending on how the domain is represented. This issue is compounded as related research fields contain descriptors that similarly describe multiagent task assignment problems, including complex domain interactions, but generally do not provide the mechanisms needed to solve the multiagent aspect of task assignment. This research presents a unified approach to representing and solving the multiagent task assignment problem for complex problem domains. Ideas central to multiagent task allocation, project scheduling, constraint satisfaction, and coalition formation are combined to …

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Occurrence Patterns Of Whistler Mode (Wm) Echoes Observed By Rpi/Image And Their Relation To Geomagnetic Activity, Amani Reddy Dec 2007

Occurrence Patterns Of Whistler Mode (Wm) Echoes Observed By Rpi/Image And Their Relation To Geomagnetic Activity, Amani Reddy

Engineering

This thesis presents an analysis of whistler mode (WM) echoes observed at altitudes less than 5,000 km by the Radio Plasma Imager (RPI) on the IMAGE satellite. WM echoes are generated either by specular reflection (SR) of RPI signals at the Earth-ionosphere boundary (~90 km) or by magnetospheric reflection of RPI signals [...] at altitudes greater than 1,000 km [Sonwalkar et al., 2004; Sonwalkar et al., 2006]. These echoes are further influenced by field aligned irregularities (FAI) and are categorized into discrete, multipath or diffuse SR- and MR- WM echoes, based on their characteristic spectral forms. A survey of WM …

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Design And Analysis Of A Low-Cost Passive Radio Frequency Identification Tag, Bhavani Shankar Palokodety Dec 2007

Design And Analysis Of A Low-Cost Passive Radio Frequency Identification Tag, Bhavani Shankar Palokodety

Engineering

Radio frequency identification (RFID) is a means of remotely identifying objects through radio frequency communication. An RFID system provides a means to capture information inexpensively and accurately. This system allows real-time accessibility and delivery of object information, which helps track assets and shipments globally. A transponder integrated circuit (IC) is used for storing and retrieving information about a remote object. A passive RFID tag consists of an antenna and a radio frequency compatible transponder IC labeled, or attached, onto products for unique identification. This thesis deals with passive RFID tag antenna design and analysis of the read range performance of …

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Development And Optimization Of A Reconfigurable Telemetry System For Sounding Rocket Payloads, Niladri Si Dec 2007

Development And Optimization Of A Reconfigurable Telemetry System For Sounding Rocket Payloads, Niladri Si

Engineering

This thesis addresses the development of a flight-ready telemetry encoder for the Alaska Student Rocket Project (ASRP) sounding rocket payload. The Frame Oriented eXpandable Integrated circuit Encoder-2007 (FOXIE-07) was developed to resolve crosstalk, timing, and thermal issues in the original FOXIE-03 encoder prototype. A pre-modulation low-pass filter was implemented between the encoder and the FM transmitter to minimize undesired sidebands from the transmitted signal. Complete testing of the FOXIE-07 encoder and pre-modulation filter was performed to certify them as flight-ready components for the SRP5 payload launch from Poker Flat Research Range in 2009.

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Froth Flotation Characterization And Processing Plant Design For The Platiniferous And Auriferous Marine Sediments Of Southwestern Alaska, Charles Bissue Dec 2007

Froth Flotation Characterization And Processing Plant Design For The Platiniferous And Auriferous Marine Sediments Of Southwestern Alaska, Charles Bissue

Engineering

The purpose of this study was to characterize, and investigate the beneficiation of, the platiniferous and auriferous marine sediments of Southwestern Alaska, located near Platinum, Alaska. The majority of placer gold particles are contained in the 50 x 150 mesh size fraction, while the platinum is finer, residing in the 100 x 200 mesh size fraction. Liberated placer gold and placer platinum group metals (PGM) particles are visible to the naked eye and readily observed under a binocular microscope. Preliminary, qualitative microprobe analysis of PGM grains from the flotation concentrate showed grains of nearly pure iridium, isoferroplatinum and Pt-Rh-Ir-Fe-S-As mineralogy. …

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Investigation Of Phase Behavior And Reservoir Fluid Properties In Support Of Enhanced Oil Recovery Of Alaska North Slope (Ans) Viscous Oils, Kaustubh D. Alurkar Dec 2007

Investigation Of Phase Behavior And Reservoir Fluid Properties In Support Of Enhanced Oil Recovery Of Alaska North Slope (Ans) Viscous Oils, Kaustubh D. Alurkar

Engineering

Declining light oil production on Alaska North Slope (ANS) has attracted oil producers to develop viscous oil resources of ANS that range between 20 to 25 billion barrels. These oils are viscous, flow sluggishly in the formations, and are difficult to transport through unconsolidated formations and are hard to produce by conventional methods. Viscous oil recovery entails neatly designed enhanced oil recovery processes and the success of these processes is critically dependent on accurate knowledge of phase behavior and fluid properties of these oils under variety of pressure and temperature conditions. An experimental study was conducted to quantify the phase …

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Equation Of State Model Development And Compositional Simulation Of Enhanced Oil Recovery Using Gas Injection For The West Sak Heavy Oil, Ganesh G. Morye Dec 2007

Equation Of State Model Development And Compositional Simulation Of Enhanced Oil Recovery Using Gas Injection For The West Sak Heavy Oil, Ganesh G. Morye

Engineering

West Sak oil field, with its very huge reserves of heavy oil, has the potential of supplementing the declining light oil production on the Alaska North Slope. Due to the heavy nature of oil, its phase behavior is very complex. A proper understanding of the phase behavioral changes of the West Sak oil is crucial to design any enhanced oil recovery scheme. Such Enhanced Oil Recovery (EOR) techniques are essential in the absence of natural drive mechanisms in these reservoirs. For the proper selection of any EOR technique, reservoir simulation studies should prove its viability. Accordingly, a complete phase behavior …

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Chemical And Microbial Characterization Of North Slope Viscous Oils For Meor Application, Ashish L. Ghotekar Dec 2007

Chemical And Microbial Characterization Of North Slope Viscous Oils For Meor Application, Ashish L. Ghotekar

Engineering

Viscous oil reservoirs tend to be low-energy, low-gas/oil-ratio systems with high viscosities and are difficult to produce, transport and refine by conventional methods. Some of the commonly considered viscous oil recovery methods include processes such as steam flooding, in-situ combustion and miscible gas injection. The large viscous oil deposits in the ANS cannot be produced entirely by conventional methods like pressure displacement or waterflooding. Other methods such as miscible (gas injection and water alternating gas (WAG) also have limited success. Microbial enhanced oil recovery (MEOR) is one of the techniques for improving the oil recovery for viscous deposits. This method …

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