Continuing development of the Virginia Tech campus is increasing downstream flooding and water quality problems. To address these problems, the University has proposed the construction of a stormwater management facility to control the quantity and quality of stormwater releases to Strouble Creek, a tributary of the New River. The overall goal of this project is to design a stormwater management facility proposed for the Virginia-Maryland College of Veterinary Medicine at Virginia Tech in Blacksburg, Virginia that will reduce present and anticipated downstream flooding and water quality problems. Specific objectives of the project are: * control of flooding in lower areas by reducing the peak discharge while disturbing existing wetlands as little as possible, * address removal of major NPS pollutants such as total phosphorus (TP), total nitrogen (TN), metals, organic compounds related to petroleum and gasoline, and suspended sediment (SS) from stormwater runoff, and * design of a dam system that is able to withstand all driving forces and constructed in accordance with governing regulations. The design requirement to limit wetland disturbance below one acre was maintained. The requirement set by officials of Virginia Tech is based on the Nationwide Permit 26 of the Wetland Regulations. An individual permit process is thus avoided. Considering this demand, however, the freedom of the stormwater management facility design was significantly restricted. Resulting from the previous restrictions mentioned, the facility will include two ponds in series - a lower, dry pond and an upper, wet pond. The stormwater management system is designed to reduce the peak discharge. The dry pond is designed to detain water only for a short period of time, as opposed to the wet pond which is designed to retain water, thereby maintaining a permanent pool of water, and to change the characteristics of runoff. The wet pond was chosen to be of an Extended Detention wetland type. Aspects such as the availability of suitable area and detention volume governed the decision to make use of this type of stormwater wetland. The constraint on a maximum possible water surface elevation due to the Veterinary School1s road embankment, which crest elevation is at 2023 ft, was considered in the design. The stormwater management facility was designed to meet water quantity control requirements and to address water quality benefits. Storm water management regulations intending to mitigate the adverse effects of land development to streams and waterways were met. Requirements to limit peak discharges from 2-year and 10-year events to existing discharge levels were achieved. Several outlet structures for each of the ponds were investigated. The structures proposed are a perforated riser/broad-crested weir for the wet pond and a proportional weir for the dry pond. They were chosen as a result of analyses on hydraulic performance, maximum water surface elevations, drawdown times, peak discharge rates, and pollutant removal capabilities. The average pollutant removal capability of 75% of TSS, 45% TP, and 25% TN for an extended stormwater wetland, as found in the literature, is expected to be lower for the proposed facility, since the wetland-to-watershed-area ratio is considerably smaller (0.22%) than the required minimum ratio of 1%. However, other suggested desirable parameter for extended detention wetland systems such as required treatment volume, effective flow path length, and dry weather water balance will be maintained. The structural design of the dams was based on experience and research data. The dams are designed to consist of two zones, shell and core. The core extends as a cutoff trench 4 feet below the ground surface. Additionally, toe drain trenches and anti-seep collars along the pipe where penetrating the dam will be placed to collect and reduce seepage, respectively. Special considerations toward seepage problems were taken into account for both dams by placing a cutoff trench and a toe drain trench. Note: The appendix of this project report contains four AutoCAD files, that can only be viewed using AutoCAD. / Master of Engineering

For my diploma thesis I chose the topic: Analysis of the problematics of the expulsion of Germans in the period press of 1945-1946. In the first part of the thesis I will focus on the methodology and the chosen type of analysis. Then, in the theoretical background of my work, I will interpret the development of the relationship between the Czechs and the Germans, I will try to describe in detail when the first conflicts between the two nations began. In addition, I will deal with the expulsion of the Germans as such, as well as its phases, taking into account the establishment of the system of internment camps, the decrees of the president of the republic and the views of both nations on the issue. In the last chapter I will deal with the analysis of the press from 1945-1946. My aim will then be to describe the discourse of post-war Czechoslovakia regarding the expulsion of Germans, the attitude of the powers on an international scale, but also the visions of the future Czechoslovak Republic, as it was established by then political representation.

Protective treatment and security detention Abstract The topic of the diploma thesis is protective treatment and security detention. These are two criminal sanctions and protective measures, that may be used by state as a reaction to committed criminal offence or other offence. A penalty is not in some cases adequate sanction to committed criminal offence and that is the reason why we have protective measures - to protect society and to help to the offender. The protective treatment and the security detention are mutually connected sanctions. As well, the security detention is a protective measure that is subsidiary to the protective treatment. The diploma thesis is divided into five chapters. The first chapter deals with general legal regulations of protective measures. This chapter also contains comparation between penalties and protective measures. The second chapter discuss basic terms that are used in the criminal code to lay down conditions in which the protective treatment and the security detention may be imposed. The third and the fourth chapters are the main chapters in the diploma thesis. The third chapter and the fourth chapter deal with the protective treatment and the security detention itself. These chapters are for easier orientation and comparation of both protective measures arranged in a...

Stop-and-frisk has become a significant issue of debate in recent years with both the constitutionality and effectiveness of the practice coming into question. The New York City Police Department (NYPD) has especially come under scrutiny for their stop-and-frisk program in recent years with researchers finding that minorities and the disadvantaged were being targeted by the NYPD during stop-and-frisk encounters. The majority of the research had focused on New York City, and thus there was little data on the use of stop-and-frisk in other jurisdictions. Moreover, there were few studies that examined officer characteristics, such as college education, agency size, etc., on stop-and-frisk and their effect on officers’ understanding of Terry v. Ohio and the legal standard of reasonable suspicion. It was important to understand what extralegal factors police officers were considering prior to stopping someone to ensure that they were not profiling suspects. Moreover, it was necessary to determine if the officers were following the law regarding what factors constitute reasonable suspicion. A qualitative research design in the form of a case study was utilized to explore how college-educated police officers in small to mid-sized agencies in suburban Western Pennsylvania describe the factors that lead to their decision to stop-and-frisk an individual. The participating police officers possessed either a bachelor’s degree or master’s degree with varying levels of rank and experience. The officers were interviewed in person and questioned regarding their stop-and-frisk practices as well as their understanding of the legal requirements necessary prior to conducting such encounters. A general inductive approach was utilized to analyze the data. NVivo software was utilized to identify categories and themes within the participant interviews consistent with a general inductive approach. A number of categories were identified in reference to how the officers described the legal and extralegal factors that led to their decision to stop-and-frisk when the interview responses were analyzed.

A comparison of the voluntary and involuntary patients at Dammasch State Hospital, Wilsonville, Oregon. A representative sample of cases over time, were chosen for the year 1976, 72 voluntary and 72 involuntary patients. One-hundred and twelve variables were coded onto sheets for each patient. The variables concerned marital status, job history, history of violent acts, present living situations and relationships, as well as drug history and diagnosis and treatment in the hospital. The data were coded onto cards and a computer analysis was done using Factor and Discriminant Function Analysis. It was hypothesized the populations of persons voluntarily admitted and involuntarily committed would be different in several ways. (A) The population of involuntarily committed persons would have more anti-social aggression in their histories. This hypothesis was partially supported by the data. The involuntarily committed had a significantly higher incidence of being under a current legal charge at the time of commitment. There was no significant difference between the two populations in the number of previous incarcerations or on 'violence committed within the family'. (B) Persons involuntarily committed would have significantly fewer relationships with persons in the community and fewer ties to persons they support financially or emotionally or that support them emotionally or financially. This hypothesis was partly supported by the data. The two populations were approximately equal on all the variables of relationship and living conditions except 'lives with mate'; for this variable the voluntary patients had a higher score. (C) Involuntarily committed persons would have less successful job histories. None of the items of the job history were significantly different in the two populations. (D) The involuntary population was more likely to have alcoholism as a secondary diagnosis. The voluntary population was more likely to have alcoholism as a primary diagnosis. This hypothesis was not clearly supported by the data. It was found that the voluntary population was more likely to abuse alcohol and the involuntary population was more likely to use alcohol. (E) The involuntary population was more likely to have experienced violence in their homes, while children. There were insufficient data in the hospital records concerning childhood to test this hypothesis. In the factor which contained the variable 'commitment' there were no elements of a history of dangerousness. The only significant correlation with commitment was 'prescription of phenothiazines in the hospital'; this result may point to the use of drugs as 'chemical restraints'. No other variable which indicated relationships, job history, social status, or dangerousness correlated significantly with commitment. These were the most important findings in the study.

Concerned by the increase in the average daily populations at Maclaren School for Boys and Hillcrest School for Girls, Children's Services Division has requested research related to children who have been released from child care centers and private institutions. Child care centers were originally developed as alternatives to the state institutions. As children were diverted to various child care centers, the populations of these two institutions decreased, and plans were made to merge the two schools, thus closing Hillcrest. With the increase in populations at both schools, this is no longer feasible. As much time and effort is spent in placing children outside of the state schools, C.S.D. would like to have some measure of how effectively its workers are diverting children from the correctional system. A speculation exists among many C.S.D. workers that youngsters are not staying in these child care centers long enough to benefit from the varied programs the centers offer. With these factors in mind, a research design was developed which would cover these variables: 1. The child's placement 2. His length of stay (including dates of placement and release) 3. His disposition upon release 4. His living situation one year following his release

The present study examined the effects of group home staffing variables on the proportion of successful program completions by adjudicated juvenile delinquents. A survey questionnaire was sent to most small group homes serving this population in California. Respondents became the 114 participants. There were no significant relationships between the staff/resident ratios and successful completion, between the inconsistency measure and successful completion, or between staffing pattern type and successful completion. Homes that employed live-in part-time family counselors had the highest staff/resident ratios. Homes that employed family counselors working in shifts had the highest staffing inconsistency.

Florida is surrounded by water, and its many internal lakes and rivers have long been recognized for their excellent fishing and boating. This notoriety draws land developers to the lake shores to establish residential and commercial infrastructure. This land development brings with it flood plain alteration, water level stabilization, and increased nutrients which cause adverse impacts to our lakes. In response, the United States Environmental Protection Agency (EPA) passed the Federal Clean Water Act (CWA) in 1972 which set the framework for the water quality standards for the entire United States. As a result of the CWA many point sources were eliminated, but in the process it became apparent that nonpoint source loads represented even more of a threat. To further study the physical and chemical characteristics of urban runoff the Nationwide Urban Runoff Program (NURP) was established in 1978. This research lead to a series of management options, named Best Management Practices (BMPs) which proposed various structural and non-structural methods to reduce nutrient loads. But the research and data collection on the effectiveness of these systems to remove nutrients is in its infancy. The main objective of this study was to generate accurate and effective water quality and water quantity data that future stormwater management decisions can be based upon. More specific, this study established automatic monitoring sites throughout the City of Kissimmee, Florida to determine the pollutant loadings into the tributaries of Lake Tohopekaliga. These monitoring sites are located such that inflows from outside the city limits can be isolated and external pollutant loads quantified. Also, additional internal monitoring sites were established to determine the pollutant loads of internal sections of the city. Data from these internal monitoring sites will also be used to determine the variable pollutant removal efficiencies and hydraulic fluctuations of natural, irregular riverine systems. The secondary objective of this study was to perform a pilot study using the discrete grab samples in tandem with the continuous hydraulic and hydrologic data from the monitoring stations. An existing lake within the project limits was chosen for the pilot study area. Monitoring stations are located at the influent and effluent sections of the lake which provided data on the hydraulic and hydrologic parameters. The pilot study determined the nutrient loads to and from the lake and checked for any seasonal variations in pollutant loading or removal efficiencies. For the purpose of this pilot study, only total nitrogen and total phosphorous were examined for two monitoring sites. The nutrient removal efficiency was performed using both the event mean concentration method and the summation of loads method to check for seasonal variation. There were no storm event concentrations available for used in this analysis, however, there were 25 discrete grab samples collected on a bi-monthly basis over a twelve month period. This data was used with corresponding five-minute rainfall and flow data from both the inflow and outflow points. The results of this study did not reveal any seasonal variation in the nutrient concentrations either flowing into or out from the lake. Although there were some relatively lower values in late spring, the concentration levels of total nitrogen did not seem to vary significantly from its mean value of 0.90 mg/l throughout the year. The concentration levels of total phosphorus did range from 0.02 mg/l to 0.48 mg/l, but not in relation to either season or flow volume fluctuations. The lake showed no net removals of total nitrogen and was actually found to be releasing total phosphorus to the downstream receiving waters. The findings of this study are limited due to the fact that the period of pilot study was only for twelve months and there were no rainfall events used in the analysis. Rainfall events are typically high sources of nutrient loads to a lake. The lower efficiencies were probably due to missing the actual higher nutrient load concentrations during the rainfall event. However, even considering the lack of event data, the nutrient removal efficiency for the pond was still low. This analysis did serve well as a basis for performing future analysis once additional data, including rainfall events, has been collected.

No description available.

Climate model projections revealed a likelihood of increased frequency and magnitude of hydrological extremes in future climate due to continued emissions of greenhouse gases. Considering that it will significantly affect the planning and designing of flood management systems, for instance stormwater management infrastructures, and designation of flood risk area, it is vital to investigate the climate change impact on the hydrological processes and respective consequences on the flood management systems. The primary objective of this research is to investigate the climate change impact at watershed scale, and the goal was achieved by investigating the climate change impact on hydrological processes, assessing the potential impact of changed hydrological processes on drainage systems and flooding scenarios. The study area in this research includes Spencer Creek watershed, West Central Mountain drainage area and Clearview Creek drainage area located in Southern Ontario, Canada. The climate projections used in this study were the North American Regional Climate Change Assessment Program (NARCCAP) climate simulations based on SRES A2 scenario. For Spencer Creek watershed, NARCCAP provided eight RCM+GCM pair’s climate projections were bias- corrected, and used as input in a calibrated hydrological model HBV to simulate flows at the outlet of the watershed. A significant improvement of bias-corrected precipitation and temperature was revealed by Brier and Rank Probability Skill Score. The results revealed an increase in winter daily average flows and decrease in other seasons, and approximately 13% increase in annual evapotranspiration, and an increase in high flows and decrease in low flows under future climate conditions. Consequences for changed hydrological processes on urban stormwater management systems were investigated for West Central Mountain drainage area. Design storm depths were calculated by using the best fitted distribution among twenty seven distributions and by applying delta change factor. The PCSWMM model was used for flow simulation and hydraulic analysis for the storm-water management system, specifically storm sewer and detention pond. The assessment results indicate that the performance of the detention pond as well as the storm sewer network will deteriorate under future climate condition as design storm depths increase. For Clearview Creek drainage area, a single event hydrologic model Visual OTTHYMO and hydraulic analysis tool HEC-RAS were used to simulate flow and water level. The results revealed an increase of peak flows ranging from about 26 % to 64% for 2yr and 100yr return periods at the outlet of the Creek, and an average increase of water surface elevation and extents by 30 cm and 37.1 m, respectively, for a 100 year return period flood. Finally, non-stationary frequency analyses for design storm calculation were recommended for more robust and accurate investigation of climate change impact. / Thesis / Doctor of Philosophy (PhD)