In 1990 the Individuals with Disabilities Education Act (IDEA) required that states provide a free and appropriate education to all children and youth with disabilities, no matter how severe the disabilities. This obligation was tied to federal funding and outlined in detail parental rights with regard to identifying and educating their child with disabilities. The 1997 reauthorization of IDEA stepped into school discipline, creating a complex process for addressing school misconduct of such students. This study determines how the 1997 IDEA disciplinary mandates, as they existed until May 2003, were interpreted and implemented in three similar, urban, public school districts and how selected staff members perceived that implementation. School board policies in the three, urban, K-12, public school districts were very similar and, in many cases, drew language directly from the IDEA law. In each district, additional documents were developed providing detailed instruction to school based educators working directly with students with disabilities and their families. The policies and guidelines reflect a clear commitment to compliance with IDEA mandates. It was not possible through this study to assess whether the spirit of the law is part of the district culture. Staff were knowledgeable of IDEA provisions and where to seek assistance within their respective organizations. Administrators and attorneys stated that their responsibilities have expanded since the 1997 reauthorization and that more of their and their staff members' time is used addressing disciplinary issues. School principals reported concerns about the length of time it takes initially to identify students with disabilities and application of the dual discipline system created by the 1997 mandates. A majority of the principals expressed concern about the dual discipline systems. It would be helpful to undertake a longitudinal study of teachers and their attitudes towards students with disabilities.

This thesis is an investigation of identity theft, although not a new crime it has recently attracted public concern. This concern has led to both federal and state governments to establish new laws to provide increased protection. Government agencies and the media have warned the public that an individual's social security number and other personal information are the tools that unscrupulous criminals can use to gain access to an identity. Once your identity is assumed criminals can use that new identity to obtain goods and services freely available in this world of instant credit lines. The purpose of this study is to examine the magnitude and characteristics of identity theft. The objective is to determine if government official's claims and the media's portrayal of the substantial rise in identity theft incidents are supported empirically. The data for this study comes from police records located in one southern-metropolitan city; from this two separate data sets were drawn. A case study methodology was selected for this project. The results indicate that the identity theft trend is different than the trends for other theft related offenses -- credit card fraud, check fraud, robbery and motor vehicle theft. The data suggest that identity theft is increasing more rapidly than the other theft orientated offenses. However, future research should be conducted to help determine if the trend found in this study is a more a reflection of criminal behavior then of changes in reporting. Additionally, the available literature on identity theft suggested that attaining an arrest for identity theft is especially difficult. The empirical evidence found in this study is mixed on this point. Finally, the demographic characteristics of identity thieves in the area of study do not conform to other economically motivated offenders. African American female offenders make up a significantly large proportion of offenders. Determining the cause of these patterns would at this point be premature, but the existence of patterns warrants further research. In conclusion, this study finds support for the expressed belief by media, private organizations, and government officials that there is greater reporting and recoding of identity theft.

Traditionally direct 3D interaction has always been limited to true 3D devices whereas 2D devices have always been used to achieve indirect 3D interaction. Till date no proper research has been done to try and extend the use of mouse to direct 3D interaction. In this research we explore the issues involved with using the mouse to accommodate the additional degrees of freedom required for 3D interaction. We put forth a unique and innovative design to achieve this objective and show that even a device as simple as the mouse can be highly effective for 3D interaction when supported by an appropriate underlying design. We also discuss in detail a software prototype "Direct3D" that we have developed based on our design and hope to take a step towards making direct 3D interaction easy, inexpensive and available to all computer users.

This thesis examines the connections between Arne Naess's Deep Ecology and Martin Heidegger's Phenomenology. The latter provides a philosophical basis for the former. Martin Heidegger's critique of traditional metaphysics and his call for an "event" ontology that is deeper than the traditional substance ontology opens a philosophical space in which a different conception of what it is to be emerges. Heidegger's view of humans also provides a basis for the wider and deeper conception of self Arne Naess seeks: one that gets rid of the presupposition that human beings are isolated subjects embedded in a framework of objects distinct from them. Both Heidegger and Naess illustrate how the substance-ontological dogma affects human culture, encouraging humans to live as if they were divorced from their environmental surroundings. When humans live according to an atomistic conception of themselves as independent from their context, alienation results, not only from each other, and not only of humans from the surrounding environment, but from themselves as well. This thesis focuses on Heidegger's employment of the conception of poiesis or self-bringing-forth as clarifying the "root" of such ecosystemic processes as growth, maturation, reproduction, and death. Thus, Heidegger's call to phenomenology -- "to the things themselves" -- is a call away from the objectifying dichotomies through which substance ontology articulates the world into isolated components. It is the purpose of this thesis to demonstrate not only the connections between the later Heidegger and Naess, but also to argue in favor of their claims that traditional philosophical perspectives regarding humans, the environment, and ethics need to be re-appropriated in a new way in order to avoid further ecological degradation and provide for the health and well being of the future generations that will inevitably inherit the effects of our present actions.

The main aim of a text-to-speech synthesis system is to convert ordinary text into an acoustic signal that is indistinguishable from human speech. This thesis presents an architecture to implement a concatenative speech synthesis algorithm targeted to FPGAs. Many current text-to-speech systems are based on the concatenation of acoustic units of recorded speech. Current concatenative speech synthesizers are capable of producing highly intelligible speech. However, the quality of speech often suffers from discontinuities between the acoustic units, due to contextual differences. This is the easiest method to produce synthetic speech. It concatenates prerecorded acoustic elements and forms a continuous speech element. The software implementation of the algorithm is performed in C whereas the hardware implementation is done in structural VHDL. A database of acoustic elements is formed first with recording sounds for different phones. The architecture is designed to concatenate acoustic elements corresponding to the phones that form the target word. Target word corresponds to the word that has to be synthesized. This architecture doesn't address the form discontinuities between the acoustic elements as its ultimate goal is the synthesis of speech. The Hardware implementation is verified on a Virtex (v800hq240-4) FPGA device.

Knowledge of structural stability theory is of paramount importance to the practicing structural engineer. In many instances, buckling is the primary consideration in the design of various structural configurations. The first chapter introduces a simplified treatment of the elastic stability of a battened column using classical methods without getting involved with lengthy and complicated mathematical operations. In chapter two, a treatment of the elastic stability of a frame is presented, including effects of elastic restraints. In this study, a theoretical treatment is given which although approximate, is believed to constitute a satisfactory solution of the structure.

C-Terminal glycine-extended prohormones are enzymatically converted to á-amidated peptides, by peptidylglycine á-amidating monooxygenase (PAM). PAM is a bifunctional enzyme with two catalytic domains: peptidylglycine á-hydroxylating monooxygenase (PHM) and peptidylglycine peptidylglycineaminoglycolate lyase (PAL). PAM has a significant role in the proliferation of androgen-independent prostate cancer. Thus, the inhibition of PAM could halt cancer growth. Hippurate and hippurate analogs were used as lead compounds for developing inhibitors for PAM. The hippurate analogs exhibiting the highest affinity to PAM (lowest inhibition constant) did inhibit the growth of human androgen-independent prostate cancer DU 145 cells.

This research effort advances millimeter-wave transistor modeling in a current RF/Microwave circuit simulator (Agilent's Advanced Design System-ADS) for small-signal noise and large signal simulations. The device modeled is a metamorphic High Electron Mobility Transistor (mHEMT) supplied by Raytheon RF components. Because of their structure, these new low noise devices are used in this work to test the abilities to accurately model in the sub 0.5dB noise figure territory and to study model prediction into W-band (75-110 GHz). New modeling issues discussed in this thesis involve the effects of noise modeling in relation to the small-signal model parameters. The noise modeling identifies two methods of extraction and how to determine good noise data. Other modeling topics addressed are the use of an advanced nonlinear model, and the ability to optimize for gain compression in the nonlinear model. Several measurement systems were used in the extraction and validation of this modeling effort. They consist of the ATN NP5 noise system, Maury Automated Tuner System, Agilent's IC-CAP, and Gateway's Special. The concept behind using these systems was to construct a complete modeling reference for a transistor and validate it against noise parameter and nonlinear measured data. Since the modeling work for this thesis is built on previous work, one goal has been to bring past USF field-effect transistor (FET) modeling efforts up to date and refine them for future use. The noise measurements were compared to results from Raytheon to validate the USF ATN noise parameter measurement system. Also the IC-CAP modeling system has been validated in measuring the test devices using the Maury load-pull system. Small-signal and noise modeling were accomplished using techniques standardized from several technical papers and prior USF Ph.D. work relative to the model extraction. The IC-CAP modeling software also provided a straightforward platform for large-signal model extraction that is documented in this thesis. Using optimization in ADS, a final nonlinear was created. Measured DC, S-parameter, noise parameters, harmonic power, TOI, load-pull, and efficiency measurements were shown to compare well with model data simulated in ADS. Temperature scaling was also executed using a linear approximation of model values over measured temperatures in the noise model. The results presented show that the models developed illustrate good fitting of the behavior of the mHEMT device.

I studied the reproductive characteristics and mating systems of a central Florida population of gopher tortoises (Gopherus polyphemus). Using x-radiography, females were monitored for stage in egg-shelling and clutch size. Eggs began to appear on x-ray photographs in the first week of May in both 2001 and 2002; however, fully shelled eggs were not found before the end of May. In total 55% of the females x-rayed were gravid. Clutch sizes ranged from 4-12 with a mean of 7.29, with a mean clutch mass of 40.9 g. Clutch size increased with an increase in mean carapace length and mean plastron length. Mean clutch mass also increased with mean carapace length of females. Hatchlings began to emerge in late August, with incubation times ranging from 83 to 96 days. 50% of the eggs hatched, with 16.2% of the eggs showing no signs of development when opened. Hatchling mass averaged 30.7 g and was positively correlated with egg mass. DNA was extracted from blood samples obtained from females and their offspring, and from the sexually mature males in the population. Nine microsatellite loci were amplified and genotypes constructed for each individual. There is evidence for promiscuous mating in gopher tortoises. Multiple paternity was detected in two of the seven clutches (28.6 %). In the clutches with multiple fathers, fertilization was highly skewed to one male, with primary male fertilizing over 70% of the clutch. Females with multiple-sired clutches were significantly smaller than females with single-sired clutches. Among the clutches assayed only one male fertilized more than one clutch, indicating that insemination of females is evenly spread among males of similar sizes. However, males assigned as fathers were significantly larger than other sampled males which may mean that larger males have an advantage in fertilization of clutches. Conservation efforts should consider the impact of the mating system on reproduction in a population, and the possible impact of the relocation of larger males on recipient populations.

The current study examined the effects of citizenship performance, task performance, and rating format on overall and task performance ratings. Levels of citizenship performance (high, medium, low), task performance (high, medium, low), and rating format (inclusion or exclusion of citizenship performance) were experimentally manipulated in a 3x3x2 between-subjects full factorial design. Ratings were provided by 360 undergraduate psychology students evaluating experimentally developed supervisory logs of first line financial managers. Targets' levels of citizenship and task performance were positively related to raters' judgments of overall and task performance. The prediction that this relationship would be moderated by task performance level was not supported. Furthermore, replicating the findings of J. M. Werner (1994), task performance ratings, assigned to targets with high levels of citizenship performance, displayed significantly more halo than ratings assigned to targets with low or medium levels of citizenship performance. Rating format did not influence raters' judgments of the targets' overall or task performance. Our findings indicate that including OCBs in job performance assessment fails to increase the accuracy of performance ratings. Study implications and limitations are discussed.