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Interpretation Of The Tandem Mass Spectrum Of The Novel Psychoactive Substance 5f-App-Pinaca, Px-2, Christopher S. Poulos

Graduate Theses, Dissertations, and Problem Reports (ETD)

Designer drugs and novel psychoactive substances (NPSs) are continuously entering the black market and causing serious health problems among users. NPSs present an especially difficult challenge to forensic chemists and toxicologists because they are not well characterized and often involve families of structurally related analogs. In crime laboratories, mass spectrometry is commonly used as a part of an analytical scheme to characterize and identify unknown analytes. Towards this end, tandem mass spectra of questioned analytes are often compared to reference spectra of standards that are either collected contemporaneously with the analyte or collected previously and stored in a database. However, …

Misogynistic Extremism: A Scoping Review, Robin O'Hanlon, Frederick L. Altice, Roy Ka-Wei Lee, Jack Laviolette, Gloria Mark, Orestis Papakyriakopoulos, Koustuv Saha, Munmun De Choudhury, Navin Kumar

Publications and Research

In recent years, the concept of “misogynistic extremism” has emerged as a subject of interest among scholars, governments, law enforcement personnel, and the media. Yet a consistent understanding of how misogynistic extremism is defined and conceptualized has not yet emerged. Varying epistemological orientations may contribute to the current conceptual muddle of this topic, reflecting long-standing and on-going challenges with the conceptualization of its individual components. To address the potential impact of misogynistic extremism (i.e., violent attacks), a more precise understanding of what this phenomenon entails is needed. To summarize the existing knowledge base on the nature of misogynistic extremism, this …

Enhancing The Forensic Comparison Process Of Common Trace Materials Through The Development Of Practical And Systematic Methods, Meghan Nicole Prusinowski

Graduate Theses, Dissertations, and Problem Reports (ETD)

An ongoing advancement in forensic trace evidence has driven the development of new and objective methods for comparing various materials. While many standard guides have been published for use in trace laboratories, different areas require a more comprehensive understanding of error rates and an urgent need for harmonizing methods of examination and interpretation. Two critical areas are the forensic examination of physical fits and the comparison of spectral data, which depend highly on the examiner’s judgment.

The long-term goal of this study is to advance and modernize the comparative process of physical fit examinations and spectral interpretation. This goal is …

Three Essays In Applied Microeconomics: Philly Style, Alexander Christian Marsella

Graduate Theses, Dissertations, and Problem Reports (ETD)

My dissertation analyzes several contemporary policy-based and institutional occurrences in an urban setting to help guide further advancements in reducing violence, drug overdose deaths, and other unhealthy behaviors that city governments look to curb. Several recent developments in Philadelphia offer a promising setting for studying policies that have broad implications.

Chapter 1 examines the effect of the West Philadelphia Promise Zone initiative on violent crime rates in a high-crime area of West Philadelphia, where a series of educational, public-safety, and quality-of-life improvement grants were disbursed from 2014 onward. My difference-in-differences analysis with two-way fixed effects and cluster bootstrapped standard errors …