Physical Sciences and Mathematics Commons^™

Forensic Analysis Of Ares Galaxy Peer-To-Peer Network, Frank Kolenbrander, Nhien-An Le-Khac, Tahar Kechadi

Annual ADFSL Conference on Digital Forensics, Security and Law

Child Abuse Material (CAM) is widely available on P2P networks. Over the last decade several tools were made for 24/7 monitoring of peer-to-peer (P2P) networks to discover suspects that use these networks for downloading and distribution of CAM. For some countries the amount of cases generated by these tools is so great that Law Enforcement (LE) just cannot handle them all. This is not only leading to backlogs and prioritizing of cases but also leading to discussions about the possibility of disrupting these networks and sending warning messages to potential CAM offenders. Recently, investigators are reporting that they are creating …

Keynote Speaker, Chuck Easttom

Annual ADFSL Conference on Digital Forensics, Security and Law

Conference Keynote Speaker, Chuck Easttom

Vibrational State Resolved Lifetimes Of The Na2 21Σ+U Double Well State, Seth T. Ashman, Lutz Huwel, Roy Anunciado, Nadeepa Jayasundara

Engineering & Physics Faculty Publications

Lifetimes of individual Na2 ro-vibrational levels of the 21Σ + u double well-state have been measured using a delayed photoionization technique. Ground state Na2 produced in a molecular beam is excited resonantly by the doubled output of a pulsed dye laser in the range 333 – 357 nm and then ionized by a 532 nm photon from a time-delayed Nd:YAG laser. By appropriate excitation laser tuning and systematic variation of the probe laser delay, ro-vibrational level resolved lifetimes are obtained for v=25- 49. The double well state lifetime values are found to decrease from about 50 ns at v=25 to …

The Study Of Drug Interactions During Separation Using Gas Chromatography – Mass Spectrometry, Leanne Mocniak

Capstone Projects/Undergraduate Honors Theses

There are numerous existing techniques for forensic toxicological testing, but each one has limitations. Although there have been significant improvements in these techniques over the past 10 years, it still remains very difficult to successfully identify a wide range of drugs from one sample using a single method [12]. This difficulty arises from the major differences in molecular structure, volatility and stability in solution between these drugs. The overall goal of this study is to develop a method using gas chromatography (GC) coupled with triple quadrupole mass spectrometry (GC/MS/MS) to separate and accurately identify 10 different drugs of abuse from …

Nonlinear Harmonic Modes Of Steel Strings On An Electric Guitar, Joel Wenrich

Senior Theses

Steel strings used on electric and acoustic guitars are non-ideal oscillators that can produce imperfect intonation. According to theory, this intonation should be a function of the bending stiffness of the string, which is related to the dimensions of length and thickness of the string. To test this theory, solid steel strings of three different linear densities were analyzed using an oscilloscope and a Fast Fourier Transform function. We found that strings exhibited more drastic nonlinear harmonic behavior as their effective length was shortened and as linear density increased.

Effect Of Electrolyte Concentration On The Capacitance And Mobility Of Graphene, Flint A. Martino

Senior Theses

The use of graphene field-effect transistors as a biosensor is increasingly being used to study biological phenomena, due to the sensitivity and low reactivity of graphene. To further improve sensitivity in biological environments, we examined how different salt concentrations affect the mobility of capacitance of the graphene. Samples were also measured after an annealing process. We report on the positive correlation between sensitivity and electrolyte concentration and speculate on methods to improve future detectors. Mobility of the device was found to change from 1.07*10³cm²/ (V*s) in de-ionized water to 2.78*10³cm²/ (V*s) in …

Fabrication Of A Capacitive Relative Humidity Sensor Using Aluminum Thin Films Deposited On Etched Printed Circuit Board, Jacqueline Ann L. Lee, Ivan B. Culaba

Physics Faculty Publications

A capacitive humidity-sensing device was created by thermal evaporation of 99.999% aluminum. The substrate used for the coating was etched double-sided printed circuit board. The etched printed circuit board serves as the dielectric of the capacitor while the aluminum thin films deposited on either side serve as the plates of the capacitor. The capacitance was measured before and after exposure to humidity. The device was then calibrated by comparing the readings of capacitance with that of the relative humidity sensor of the Vernier LabQuest2. It was found that there is a linear relationship between the capacitance and relative humidity given …

1859 - Map Of Public Surveys In California

American Period Maps

September 19, 1859, map of California prepared by the Office of the U.S. Surveyor General. A list of the 196 private grants surveyed is located on the bottom left corner. The private grants are superimposed on the map.

Modeling The Behavior Of The Graphene To Liquid Interfaces In An Electrolytic Liquid, Caitlin Duffner

Senior Theses

Understanding the mechanism for charge transfer between a graphene biosensor and its electrodes within an electrolyte solution is vital to better understand the sources of electrical noise in the system. By measuring the effective resistance and capacitance of the system at different frequencies, it is possible to develop a circuit model of the system's electrical behavior. This model provides a deeper understanding of the fundamental interactions that occur in a top-­gated graphene device and provides opportunities to improve a signal. To reduce noise created at the liquid to graphene interface, a buffer layer of Yttrium Oxide was applied. While the …

U.S. Drought Monitor, May 24, 2016, David Simeral

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for May 24, 2016 (5/24/16) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

Hydrodynamic Theories For Flows Of Active Liquid Crystals And The Generalized Onsager Principle, Xiaogang Yang, Jun Li, M. Gregory Forest, Qi Wang

Faculty Publications

We articulate and apply the generalized Onsager principle to derive transport equations for active liquid crystals in a fixed domain as well as in a free surface domain adjacent to a passive fluid matrix. The Onsager principle ensures fundamental variational structure of the models as well as dissipative properties of the passive component in the models, irrespective of the choice of scale (kinetic to continuum) and of the physical potentials. Many popular models for passive and active liquid crystals in a fixed domain subject to consistent boundary conditions at solid walls, as well as active liquid crystals in a free …

An Investigation Of Invasion: Boater Knowledge Concerning Aquatic Invasive Species And The Influence Of The New Zealand Mud Snail On Benthic Food Webs, Samuel Anthony Cimino

Dissertations and Theses

Invasive species are second only to habitat loss as a leading cause of native species displacement and the management of invasive species costs hundreds of billions annually. Invasion is often conceptualized as a series of stages (Transport, Introduction, Establishment, and Spread), which encourages ecologists to isolate factors that might enable a species to pass from one stage to another and therefore guide prevention or impact management. This thesis addresses each stage of invasion and attempts to determine where management might succeed in preventing invasion or minimizing impacts. The transport and introduction of aquatic invasive species (AIS) was analyzed by conducting …

Pressure-Induced Confined Metal From The Mott Insulator Sr3Ir2O7, Yang Ding, Liuxiang Yang, Cheng-Chien Chen, Heung-Sik Kim, Myung Joon Han, Wei Luo, Zhenxing Feng, Mary Upton, Diego Casa, Jungho Kim, Thomas Gog, Zhidan Zeng, Gang Cao, Ho-Kwang Mao, Michel Van Veenendaal

Physics and Astronomy Faculty Publications

The spin-orbit Mott insulator Sr₃Ir₂O₇ provides a fascinating playground to explore insulator-metal transition driven by intertwined charge, spin, and lattice degrees of freedom. Here, we report high-pressure electric resistance and resonant inelastic x-ray scattering measurements on single-crystal Sr₃Ir₂O₇ up to 63–65 GPa at 300 K. The material becomes a confined metal at 59.5 GPa, showing metallicity in the ab plane but an insulating behavior along the c axis. Such an unusual phenomenon resembles the strange metal phase in cuprate superconductors. Since there is no sign of the collapse of spin-orbit …

Monarch: A Reimagined Browser For The Modern Web, Daniel R. Whitcomb

Dartmouth College Undergraduate Theses

Web browsers have become fast and flexible enough to allow web applications to be viable competition to native applications. Now that the web as a platform has become formidable, it has changed the types of web applications being produced, and the ways in which native applications are being built. This observation leads me to propose the concept of the App Web - a category of the world wide web which increases productivity - and its place in the current application experience. Monarch is a system designed to merge the advantages of native and web applications, improving experiences for both the …

Multiple Sequence Alignment With Pro Le Hidden Markov Models, Shubhangi Rakhonde

Master's Projects

The human genome consists of various patterns and sequences that are of biolog- ical signi cance. Capturing these patterns can help us in resolving various mysteries related to the genome, like how genomes evolve, how diseases occur due to genetic mutation, how viruses mutate to cause new disease and what is the cure for these diseases. All these applications are covered in the study of bioinformatics.

One of the very common tasks in bioinformatics involves simultaneous alignment of a number of biological sequences. In bioinformatics, this is widely known as Mul- tiple Sequence Alignment. Multiple sequence alignments help in grouping …

Quantitative Evidence For The Effects Of Multiple Drivers On Continental-Scale Amphibian Declines, Evan H. Campbell Grant, David A. W. Miller, Benedikt R. Schmidt, Michael J. Adams, Staci M. Amburgey, Thierry Chambert, Sam S. Cruickshank, Robert N. Fisher, David M. Green, Blake R. Hossack, Pieter T. J. Johnson, Maxwell B. Joseph, Tracy A. G. Rittenhouse, Maureen E. Ryan, J. Hardin Waddle, Susan C. Walls, Larissa L. Bailey, Gary M. Fellers, Thomas A. Gorman, Andrew M. Ray, David S. Pilliod, Steven J. Price, Daniel Saenz, Walt Sadinski, Erin Muths

Forestry and Natural Resources Faculty Publications

Since amphibian declines were first proposed as a global phenomenon over a quarter century ago, the conservation community has made little progress in halting or reversing these trends. The early search for a “smoking gun” was replaced with the expectation that declines are caused by multiple drivers. While field observations and experiments have identified factors leading to increased local extinction risk, evidence for effects of these drivers is lacking at large spatial scales. Here, we use observations of 389 time-series of 83 species and complexes from 61 study areas across North America to test the effects of 4 of the …

Sdss Iv Manga – Spatially Resolved Diagnostic Diagrams: A Proof That Many Galaxies Are Liers, Francesco Belfiore, Roberto Maiolino, Claudia Maraston, Eric Emsellem, Matthew A. Bershady, Karen L. Masters, Renbin Yan, Dmitry Bizyaev, Médéric Boquien, Joel R. Brownstein, Kevin Bundy, Niv Drory, Timothy M. Heckman, David R. Law, Alexandre Roman-Lopes, Kaike Pan, Letizia Stanghellini, Daniel Thomas, Anne-Marie Weijmans, Kyle B. Westfall

Physics and Astronomy Faculty Publications

We study the spatially resolved excitation properties of the ionized gas in a sample of 646 galaxies using integral field spectroscopy data from the Sloan Digital Sky Survey IV Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) programme. Making use of Baldwin–Philips–Terlevich diagnostic diagrams we demonstrate the ubiquitous presence of extended (kpc scale) low-ionization emission-line regions (LIERs) in both star-forming and quiescent galaxies. In star-forming galaxies LIER emission can be associated with diffuse ionized gas, most evident as extraplanar emission in edge-on systems. In addition, we identify two main classes of galaxies displaying LIER emission: ‘central LIER’ (cLIER) galaxies, where …

Multi-Regression Prediction Of Metal Partition Coefficients Under Various Physical/Chemical Conditions Design Of Experiments As, Cr, Cu, Ni And Zn, Eid A. Alkhatib, Danielle Grunzke, Trey Chabot

Chemistry & Physics Faculty Publications

The behavior of metals in surface water is complex and their partition coefficients can be impacted by many factors. Organic matter (OM) content in sediments, pH and salinity, are factors that may influence speciation and partitioning of metals. The difficulty in describing the impacts and relationships are that these processes are interconnected with no dominant associations among all. In this study, the partitioning of five metals (As, Cr, Cu, Ni and Zn) under different levels of salinity, pH, and OM content were investigated. A series of factorial design experiments are evaluated in which three levels of OM are tested each …

Are Consumers Willing To Pay More For Sustainable Products? A Study Of Eco-Labeled Tuna Steak, Guzhen Zhou, Wuyang Hu, Wenchao Huang

Agricultural Economics Faculty Publications

A high demand for seafood leads to overfishing, harms the long-term health of seafood stocks, and threatens environmental sustainability in oceans. Sustainability certification is one of the major sustainability movements and is known as eco-labeling. For instance, in the tuna industry, leading tuna brands have committed to protecting sea turtles by allowing the tracing of the source of their tuna “from catch to can.” This paper relies on an Internet survey on consumers from Kentucky conducted in July 2010. The survey investigates household-level tuna steak (sashimi grade) consumption and examines consumer preferences for eco-labeling (“Certified Turtle Safe” (CTS) in this …

From Jim Crow To Racial Tolerance: The African-American Experience During Interwar Period Paris, Nicole Schindel

Binghamton University Undergraduate Journal

During World War I, African-American soldiers came to France and discovered the relative diminishment of racial prejudices in the country. Since much of the United States still held racist Jim Crow era laws and prejudices, African-Americans had been barred from the same opportunities as their white counterparts. Because of this, many African- Americans moved to Paris during the interwar period to seek opportunities that were not available to them in the United States. This paper will explore how the less rigid and more nuanced racial ideologies found in Paris, enabled African-Americans to create strong relationships with Parisians and find the …

Time Dependent Kernel Density Estimation: A New Parameter Estimation Algorithm, Applications In Time Series Classification And Clustering, Xing Wang

USF Tampa Graduate Theses and Dissertations

The Time Dependent Kernel Density Estimation (TDKDE) developed by Harvey & Oryshchenko (2012) is a kernel density estimation adjusted by the Exponentially Weighted Moving Average (EWMA) weighting scheme. The Maximum Likelihood Estimation (MLE) procedure for estimating the parameters proposed by Harvey & Oryshchenko (2012) is easy to apply but has two inherent problems. In this study, we evaluate the performances of the probability density estimation in terms of the uniformity of Probability Integral Transforms (PITs) on various kernel functions combined with different preset numbers. Furthermore, we develop a new estimation algorithm which can be conducted using Artificial Neural Networks to …

Womanhood Initiation, Anna Szilagyi

Binghamton University Undergraduate Journal

Womanhood Initiation is a poem I wrote during Maria Gillan's Advanced Poetry Workshop. Professor Gillan is a Professor of English at Binghamton University, and her workshop is unique in that it takes place during three long weekend sessions throughout the semester. This specific poem was inspired by one of Professor Gillan’s writing prompts: “I do not feel like a man/woman yet.” I tend to explore gender in my poetry, specifically girlhood and womanhood. Young women and girls, often put down in United States culture for their vanity and selfishness, are complex, intelligent people and have more to say that should …

Examining Primarily White Institutions Of Higher Education: Black Student Experience In The 1960s, Oluwashola Gbemi

Binghamton University Undergraduate Journal

A major outcome of the Civil Rights Act of 1964 was the desegregation of higher-learning institutions. Despite this, there was little change regarding the character and cultural norms of predominantly white institutions (PWIs) of higher learning. In this review of literature discussing the experiences of Black students attending PWIs during the 1960s, I argue that cultural norms such as racial discrimination yielded a detrimental impact on the success and wellbeing of African-American students. While I discuss what quality wellbeing for African-American students entails, I highlight the significance of black student unions to the wellbeing of black students. In order to …

Challenging Linguistic Superiority Through Social Attitudes: Language Complexities Of The Ukrainian Diaspora In The United States, Anna Pinchuk

Binghamton University Undergraduate Journal

The English language in the United States has a strong legacy of linguistic imperialism that started with bans on the use of languages spoken by indigenous people in the early 1800s. The assumptions behind those policies were that the English language was civilized and progressive, while all other languages were barbaric and improper. In this paper, I examine how the historic language policies in the United States continue to create barriers in non-native speakers’ success and achievement in social and political spheres. I proceed by discussing the English-only policies and native language bans that started the legacy of English superiority …

Do Natural Disasters Induce More Crime?, Michael Lentini, Plamen Nikolov, Matthew Schwartz

Binghamton University Undergraduate Journal

The Indian Ocean Tsunami of 2004 resulted in grave consequences for South East Asia. Indonesia, in particular, had the highest death toll, losing over 150,000 people. Indonesia’s coastal region Aceh was the hardest hit by this disaster. Exploiting exogenous spatial variation at the district level, we use difference-in-difference analysis to estimate the causal effect of the 2004 disaster on subsequent crime rates. We find that after the tsunami, total annual crime rate went down, on average, by 244 crimes per annum.

Mental Health Initiatives For Asian American Women, Karen Lin

Binghamton University Undergraduate Journal

Despite being one of the fastest growing minorities of the United States, Asian Americans are most at risk for developing mental disorders and least likely to seek professional help. With a significant portion of the United States represented by Asian ethnicities, addressing the mental health needs of this population is not only important but necessary to advance the overall health of all Americans. The purpose of this paper is to describe the influences of cultural norms and standards that increase risk factors for poor mental health outcomes and negative help seeking attitudes in first generation Asian American college-aged females. These …

A Bi-Stable Switch In Virus Dynamics Can Explain The Differences In Disease Outcome Following Siv Infections In Rhesus Macaques, Stanca Ciupe, Christopher Miller, Jonathan Forde

Biology and Medicine Through Mathematics Conference

No abstract provided.

Patient-Specific Inference Of Average Glucose From Glycated Hemoglobin, Roy Malka, David M. Nathan, John M. Higgins

Biology and Medicine Through Mathematics Conference

No abstract provided.

Determinants Of The Efficacy Of Hiv Latency Reversing Agents And Implications For Drug And Treatment Design, Ruian Ke

Biology and Medicine Through Mathematics Conference

No abstract provided.

A Unified Model Of Pathogenesis Pathways Of Type 2 Diabetes, Joon Ha, Arthur Sherman

Biology and Medicine Through Mathematics Conference

No abstract provided.