Digital Commons Network^™

Seeding Hydrogen Propellant In Nuclear Thermal Propulsion Engines, Daria Nikitaeva

Theses

Using the NASA Design Reference Architecture, Nuclear Thermal Propulsion engine and Mars transfer vehicle models were developed to numerically examine the effects of adding heavy noble gases into the hydrogen propellant stream (seeding) on round trip transit times (baseline of 357 days). Seeded hydrogen, up to maximum seed mass concentration (MSMC) 55.85%, increased engine and vehicle performance by reducing pressure losses, decreasing reactor power, and increasing the overall change in velocity while assuming constant vehicle volume and dry mass. The tradeoff was lowered specific impulse and increased net propellant mass, resulting in increased vehicle wetted mass. Vehicle performance increased at …

Requirements For A Distributed Nfv Orchestration In A Wmn-Based Disaster Network, Gregor Frick, Auberlin Paguem Tchinda, Besfort Shala, Ulrich Trick, Armin Lehmann, Bogdan Ghita

School of Engineering, Computing and Mathematics

No abstract provided.

School Choice, Youth Voice: How Diverse Student Policy Actors Experience High School Choice Policy, Kate L. Phillippo, Briellen Griffin, Bryan J. Del Dotto, David Castro, Ekram Nagi

Education: School of Education Faculty Publications and Other Works

School choice research is abundant, but rarely incorporates students’ experiences or perspectives. This study investigates a diverse group of students’ school choice experiences as they applied to, gained admission to and enrolled in high school in Chicago Public Schools, which offers over 130 options. Adapting Ball and colleagues’ (2012) concept of policy actor positionality, we analyzed the role of students’ developmental and social statuses in students’ school choice experiences. Students’ policy encounters were developmentally consistent, but their admissions results and subsequent academic trajectories diverged by their socioeconomic status. We discuss these findings’ developmental and equity implications for school choice policy.

The Social Construction Of A Disaster Typology To Enhance Operational Emergency Planning For K-8 Public Schools In Southern Ontario, Patricia Martel

Theses and Dissertations (Comprehensive)

This dissertation outlines the development of a disaster typology that could be used as a tool for developing operational emergency plans for K-8 public schools with the potential to be applied more generally to other facilities that host vulnerable groups. The theoretical framework used to inform this study is the theory of the social construction of disasters. This theory conceptualizes disasters as being the result of the interaction between social factors, such as risk perception and vulnerability, and the hazards.The author of this dissertation is an emergency management practitioner and brought a perspective informed by both theory and practice of …

The Upside Of Deep Fakes, Jessica Silbey, Woodrow Hartzog

Faculty Scholarship

It’s bad. We know. The dawn of “deep fakes” — convincing videos and images of people doing things they never did or said — puts us all in jeopardy in several different ways. Professors Bobby Chesney and Danielle Citron have noted that now “false claims — even preposterous ones — can be peddled with unprecedented success today thanks to a combination of social media ubiquity and virality, cognitive biases, filter bubbles, and group polarization.” The scholars identify a host of harms from deep fakes, ranging from people being exploited, extorted, and sabotaged, to societal harms like the erosion of democratic …

Taking Data, Michael C. Pollack

Articles

Technological development has created new forms of information, altered expectations of privacy, and given law enforcement more tools to examine that information and intrude on that privacy. One crucial facet of these changes involves internet service providers (ISPs): as people expose more of their lives to their ISPs—all the websites they visit, people they communicate with, emails they send, files they store, and more—law enforcement efforts to access that data become more and more common. But scholars and policymakers alike recognize that the existing statutory frameworks governing those efforts are based on obsolete technology and strike balances that are difficult …

Huachicoleros: Criminal Cartels, Fuel Theft, And Violence In Mexico, Nathan P. Jones, John P. Sullivan

Journal of Strategic Security

Criminal cartels and gangs dominate the illicit economy in Mexico. These organized crime groups challenge the solvency (specifically capacity and legitimacy) of the state in Mexico. Organized crime in Mexico is involved in a range of activities including extortion, drug trafficking, human trafficking, and petroleum theft. Criminal cartels, often called drug trafficking organizations, have diversified into other illicit activities specifically petroleum theft. This paper provides an overview of the rise of a specialized organized criminal entity: huachicoleros. Huachicoleros specialize in fuel theft and like their narco counterparts use corruption and violence to protect their illicit market. The rise of …

The Government’S Multi-Faceted Role In Resolving The Main Legal Issues Regarding Carbon Capture And Sequestration, Moonsook Park

North Dakota Law Review

No abstract provided.

Dillon's Rule: A Check On Sheriff's Authority To Enter 287(G) Agreements, Gregory Taylor

American University Law Review

No abstract provided.

Mdl Immunity: Lessons From The National Prescription Opiate Litigation, Roger Michalski

American University Law Review

No abstract provided.

Examining Stigma Associated With Firefighters Seeking Social Support After Experiencing A Traumatic Event, John Richard Tormos

Theses and Dissertations

This applied dissertation was designed to examine stigma associated with firefighters seeking social support after experiencing a traumatic event. This quantitative study employed a survey approach with a cross-sectional design. The researcher self-selected 26 active career firefighters from a medium-sized fire department located in the southeastern United States to participate in the study. Firefighters responded to an array of emergency incidents and were repeatedly exposed to traumatic events. The Secondary Trauma Exposure Scale was employed to answer the first research question: What are the most frequent types of traumatic events that firefighters have experienced? The findings revealed that all of …

The Deaf & Law Enforcement Listening Though Deaf Eyes: A Grounded Theory Approach, John L. Garner

Theses and Dissertations

This paper examines the perceived and practical schism between deaf society and the police when the deaf attempt to obtain police services. The paper challenges current police culture and operating procedures, which tend to marginalize deaf society and largely ignore the mandates contained in the Americans with Disabilities Act (ADA). This qualitative research project is focused upon perceived law enforcement practices and culture through a multi-layered study of police customs, law, policy, and standard operating procedures as experienced, perceived, and reported by deaf individuals.

A constructivist grounded theory approach was used to examine the way law enforcement is perceived by …

An Analysis Of Selected Clusters Of Fires In Florida (1996 - 2018), Thomas Riley Hall

Theses and Dissertations

Hidden within the day-to-day routine responses of fire departments are possible multiple fires set by individuals in a small area with an unusual frequency. These fires may be the initial announcement of an emerging serial offender who is declaring a wound, an intolerable life situation, or is triggered by unknown events. This study sought to predict incendiary fires within a known cluster by using observable variables, both prior to and after the cluster event. This was done to further our understanding of the characteristics of clusters of intentionally lit fires. This was accomplished by examining the Florida Fire Information Reports …

The Effect Of Training And Institutional Support On Title Ix Coordinators' Responses To Sexual Violence On College Campuses, Mercedes M. Pino

Theses and Dissertations

One out of five women in college are victims of sexual assault. The uptick in cases being brought before the US Department of Education for the mishandling of sexual assault cases on college campuses raises a question about the adequacy of the training and support being received by Title IX Coordinators. This study was designed to determine whether Title IX Coordinators are receiving adequate support and sufficient training necessary to adhere to the federal mandates regarding sexual assault on campus, as well as how the Title IX Coordinators’ years of experience relate to the challenges they face.

Using SurveyMonkey, a …

Violent Offenders And Assaults On Staff Members, Lisa Gentry Long

Theses and Dissertations

Violent Offenders and Assaults on Staff Members. Dissertation, Nova Southeastern University, Fischler College of Education, School of Criminal Justice Department. Descriptors: Violence, violent offenders, violent inmates, corrections, prisons, assaults, correction officers, staff members.

Prison facilities are an integral part of the criminal justice system. Prisons are meant to provide punishment, deterrence and rehabilitation for inmates that are serving time. Prisons across the country are understaffed due to many reasons. It is important for staff members to be trained on how to keep themselves and inmates safe when they are behind the walls of these facilities. Staff members are in positions …

Assessing The Factor Structure And Classification Accuracy Of The College Alcohol Problems Scale Using A Population Of Students With Disabilities, Kristi L. Nobbman

Electronic Theses and Dissertations Archive

Alcohol use on college campuses is an issue of public health. Sixty percent of college students consume alcohol on a monthly basis. Identifying students risk of alcohol related problems is compounded when working with academically at-risk students. Students with disabilities (SWD) are considered an at-risk group and make up 11% of student population on college campuses. The College Alcohol Problems Scale (CAPS) is widely used on college campuses and has shown versatility with African American students, deaf and hard of hearing students, and Spanish speaking students. The purpose of this study was to determine if the two-factor model of CAPS …

End-To-Middle-To-End Solution For Ims Media Plane Security, Jose Oscar Fajardo, Fidel Liberal, Fudong Li, Nathan Clarke, Is Haka Mkwawa

School of Engineering, Computing and Mathematics

IP multimedia subsystem (IMS) is becoming the prevailing candidate for managing future mobile multimedia communications, including critical communications such as public safety, emergency professionals and corporate networks. IMS security and privacy has gained much attention in the few last years. The review of recent IMS security activities stresses the inclusion of intermediate nodes in the media path of secured communications as an open issue. This paper presents an end-to-middle-to-end solution which enables the usage of IMS media plane elements such as recorders, transcoders and novel cross-ciphering functions in a secure way. The proposed solution, which is fully compliant with IMS, …

From Ocean Sprawl To Blue-Green Infrastructure – A Uk Perspective On An Issue Of Global Significance, Ally J. Evans, Louise B. Firth, Stephen J. Hawkins, Alice E. Hall, Joseph E. Ironside, Richard C. Thompson, Pippa J. Moore

School of Biological and Marine Sciences

Artificial structures are proliferating in the marine environment, resulting in ‘ocean sprawl’. In light of the potential environmental impacts of this, such as habitat loss and alteration, it is becoming increasingly important to incorporate ecologically-sensitive design into artificial marine structures. The principles of eco-engineering and green infrastructure are embedded in urban planning practice for terrestrial and freshwater development projects. In marine planning, however, eco-engineering of blue-green infrastructure remains an emerging concept. This note provides a UK perspective on the progress towards uptake of eco-engineering approaches for enhancing biodiversity on artificial marine structures. We emphasise that, despite a clear ‘policy pull’ …

Barnette And Masterpiece Cakeshop: Some Unanswered Questions, Abner S. Greene

FIU Law Review

No abstract provided.

Influence Of External And Internal Factors On Financial Advisors' Guidance Of Clients In The Area Of Charitable Giving, Angela J. Gorsuch Widner

Dissertations and Theses @ UNI

Charitable giving plays a vital role in the ability of nonprofit organizations to carry out their missions to contribute to the well-being of society. Research suggests that most wealthy Americans have an interest in being philanthropic and giving to nonprofit organizations. Financial advisors often play a substantial role in helping their clients understand the complex policies related to charitable giving. As the experts, financial advisors play an important consultative role in making sense of the benefits that can come as a result of charitable giving.

The purpose of this study was to explore how financial advisors work with clients in …

An Investigation Of Solar Panel Thermal Images Collected From An Unmanned Aerial Vehicle, Ginger Ivy Jo L'Heureux

Dissertations and Theses @ UNI

As the population of the world continues to increase, so does energy consumption. At the same time, available fossil fuels continue to be depleted. Knowing these two facts, there is a need to find additional sources of energy. Photovoltaic panels (solar panels) are front and center of the renewable energy available options.

Exploring the practical use of infrared thermal imaging for data collection and maintenance of photovoltaic panels is the main objective of this study. In this research, three unmanned aerial vehicle (UAV) flights were completed to obtain thermal imaging of the Cedar Falls Utilities Solar Field with various dates …

Full Transparency: A Case Against The Collection Of Internet Information In Trump-Era American Immigration, Thomas P. Campbell

FIU Law Review

No abstract provided.

The Inconsentability Of Facial Surveillance, Evan Selinger, Woodrow Hartzog

Faculty Scholarship

Governments and companies often use consent to justify the use of facial recognition technologies for surveillance. Many proposals for regulating facial recognition technology incorporate consent rules as a way to protect those faces that are being tagged and tracked. But consent is a broken regulatory mechanism for facial surveillance. The individual risks of facial surveillance are impossibly opaque, and our collective autonomy and obscurity interests aren’t captured or served by individual decisions.

In this article, we argue that facial recognition technologies have a massive and likely fatal consent problem. We reconstruct some of Nancy Kim’s fundamental claims in Consentability: Consent …

Foreign Affairs Prosecutions, Steven Arrigg Koh

Faculty Scholarship

Contemporary global crime and cross-border law enforcement cooperation have multiplied “foreign affairs prosecutions,” cases that encompass foreign apprehension, evidence gathering, and criminal conduct, as well as cases that implicate foreign nations’ criminal justice interests. Robert Mueller’s Russia investigation, the fugitive Edward Snowden, and the cross-border crimes of FIFA and El Chapo all exemplify such foreign affairs prosecutions. This Article argues that foreign affairs prosecutions represent a consequential shift in U.S. criminal law, offering the promise of closing global impunity gaps. At the same time, however, such cases risk defendant interests at home and U.S. foreign policy abroad. This Article calls …

Prisoner, Prison And Situational Characteristics And Their Relationship With The Prevalence, Incidence And Type Of Prison Offending Recorded By A Sample Of Prisoners Within Western Australian Prisons, Catharine Phillips

Theses: Doctorates and Masters

The importance that researchers and prison administrators have placed on ensuring that the good governance, security and safety of prisons are maintained has generated a number of studies of prison offending. Previous studies have identified several prisoner, prison and situational characteristics as relevant in regard to their relationship with the prevalence, incidence and type of prison offences committed. However, no studies have been conducted in Australia, and therefore no studies have included Aboriginal prisoners in their prisoner samples. In addition, the differences in regard to legislation pertaining to prison offending between jurisdictions is also of importance when considering the generalisability …

Integration Of Biometrics And Steganography: A Comprehensive Review, Ian Mcateer, Ahmed Ibrahim, Guanglou Zhang, Wencheng Yang, Craig Valli

Research outputs 2014 to 2021

The use of an individual’s biometric characteristics to advance authentication and verification technology beyond the current dependence on passwords has been the subject of extensive research for some time. Since such physical characteristics cannot be hidden from the public eye, the security of digitised biometric data becomes paramount to avoid the risk of substitution or replay attacks. Biometric systems have readily embraced cryptography to encrypt the data extracted from the scanning of anatomical features. Significant amounts of research have also gone into the integration of biometrics with steganography to add a layer to the defence-in-depth security model, and this has …

A Common-Sense Defense Of Janus: Forthcoming Changes In The Public Sector, Maria O'Brien

Faculty Scholarship

Many scholars and others have, for some time now, been calling attention to the alarming growth in post-employment and other benefits for unionized employees in the public sector. ¹⁷ A fairly well-understood phenomenon is thought to explain the inability of state and local governments to resist outsized demands from their public unions. As ¹⁸ Is and others ¹⁹ have argued, the central problem with public sector unions is that they find it easy to capture their employers (taxpayers) in ways that private sector unions cannot. The role played by often eager and feckless elected officials in this process has also …

Criminal Law: The Institutional Design Of Punishment, Aaron Rappaport

The Judges' Book

No abstract provided.

Revisionist History? Responding To Gun Violence Under Historical Limitations, Michael Ulrich

Faculty Scholarship

In the D.C. Circuit case Heller v. District of Columbia (Heller II), Judge Kavanaugh wrote that “Heller and McDonald leave little doubt that courts are to assess gun bans and regulations based on text, history, and tradition, not by a balancing test such as strict or intermediate scrutiny.” Now Justice Kavanaugh, will he find support on the highest court for what was then a dissenting view? Chief Justice Roberts, during oral arguments for Heller I, asked “Isn’t it enough to…look at the various regulations that were available at the time…and determine how these—how this restriction and the scope of this …

The Sanctuary Of Prosecutorial Nullification, Zohra Ahmed

Faculty Scholarship

In the aftermath of the 2016 election, the shortcomings of existing sanctuary protections came sharply into focus.¹ Historically, cities enacted sanctuary protections to extricate their law enforcement agencies from activities related to federal immigration enforcement. In sanctuary cities, local government agencies are typically restricted from sharing information with federal immigration authorities or from cooperating in apprehending individuals targeted for removal. ² After the White House issued an Executive Order (EO) in late January 2017, many immigrant rights advocates recognized that external facing policies that proscribed direct cooperation would not suffice. ³ The EO announced that Immigration and Customs Enforcement …