609 research outputs found
Effects of Gratitude on Fundamental Attribution Error
A Research Methods Project supervised by Dr. Laura Wilson (Fall 2021)
Connecting the Dots: Families and Children with Special Needs in a Rural Community
Due to the rising number of children with disabilities, the needs of these families must be addressed. This article describes the development and implementation of a regional forum in a rural community to address education and training needs of families and professionals. The Special Needs Summit provided workshops, information, and activities for parents and professionals. Participants were invited to participate in a study through a survey soliciting feedback regarding the importance and effectiveness of the training and information received through the Summit, gaps in resources, and future educational and training needs. Overall, participants gave satisfactory ratings regarding the training and education provided during the forum, and gave direction for future programming
Measuring Population Transmission Potential for HIV: An Alternative Metric of Transmission Risk in Men who have Sex with Men (MSM) in the US
Background Various metrics for HIV burden and treatment success [e.g. HIV prevalence, community viral load (CVL), population viral load (PVL), percent of HIV-positive persons with undetectable viral load] have important public health limitations for understanding disparities. Methods and Findings Using data from an ongoing HIV incidence cohort of black and white men who have sex with men (MSM), we propose a new metric to measure the prevalence of those at risk of transmitting HIV and illustrate its value. …See full text for complete abstract
The Comparability of Men Who Have Sex With Men Recruited From Venue-Time-Space Sampling and Facebook: A Cohort Study
Background: Recruiting valid samples of men who have sex with men (MSM) is a key component of the US human immunodeficiency virus (HIV) surveillance and of research studies seeking to improve HIV prevention for MSM. Social media, such as Facebook, may present an opportunity to reach broad samples of MSM, but the extent to which those samples are comparable with men recruited from venue-based, time-space sampling (VBTS) is unknown. Objective: The objective of this study was to assess the comparability of MSM recruited via VBTS and Facebook. Methods: HIV-negative and HIV-positive black and white MSM were recruited from June 2010 to December 2012 using VBTS and Facebook in Atlanta, GA. We compared the self-reported venue attendance, demographic characteristics, sexual and risk behaviors, history of HIV-testing, and HIV and sexually transmitted infection (STI) prevalence between Facebook- and VTBS-recruited MSM overall and by race. Multivariate logistic and negative binomial models estimated age/race adjusted ratios. The Kaplan-Meier method was used to assess 24-month retention. Results: We recruited 803 MSM, of whom 110 (34/110, 30.9% black MSM, 76/110, 69.1% white MSM) were recruited via Facebook and 693 (420/693, 60.6% black MSM, 273/693, 39.4% white MSM) were recruited through VTBS. Facebook recruits had high rates of venue attendance in the previous month (26/34, 77% among black and 71/76, 93% among white MSM; between-race P=.01). MSM recruited on Facebook were generally older, with significant age differences among black MSM (P=.02), but not white MSM (P=.14). … See full text for complete abstract
Product Counterfeiting Legislation in the United States: A Review and Assessment of Characteristics, Remedies, and Penalties
Product counterfeiting crimes have detrimental effects on consumers, brand owners, public health, the economy, and even national security. Over time, as product counterfeiting crimes and the response to them have evolved, U.S. federal legislation has developed and state legislation has followed suit, but with considerable variation across the states. The purpose of this article is to place product counterfeiting in the context of intellectual property rights, provide a historical review of relevant federal legislation, and systematically examine the extent to which state laws differ in terms of characteristics, remedies, and penalties. Additionally, we calculate indices of civil and criminal protections that illustrate the overall strength of each state’s legislative framework. Collectively, this assessment provides a solid foundation for understanding the development of product counterfeiting legislation and serves as a basis for advancing research, policy, and practice
University of North Carolina/Emory Center for Innovative Technology (iTech) for Addressing the HIV Epidemic Among Adolescents and Young Adults in the United States: Protocol and Rationale for Center Development
BACKGROUND: Over a fifth of all new HIV infections in the United States occur among persons aged 13 24 years, with most of these diagnoses occurring among gay and bisexual males (81%). While the epidemic of HIV in the United States has leveled off for many age groups, the annual number of new HIV diagnoses among young men who have sex with men (YMSM; 13-24 years old) remains high. Traditional approaches to continuum improvement for youth have been insufficient, and targeted interventions are urgently needed for young people at risk for or infected with HIV. Interventions delivered through mobile health technology represent a promising approach for improving outcomes in this population. Mobile phones have nearly reached saturation among youth, making mobile technology a particularly promising tool for reaching this population. OBJECTIVE: The University of North Carolina/Emory Center for Innovative Technology (iTech) is a National Institutes of Health cooperative agreement as part of the Adolescent Medicine Trials Network for HIV/AIDS Interventions. iTech aims to impact the HIV epidemic by conducting innovative, interdisciplinary research on technology-based interventions across the HIV prevention and care continuum for adolescents and young adults in the United States, particularly YMSM, by providing the following: (1) evaluation of novel approaches to identifying youth with undiagnosed HIV infections; (2) evaluation of multilevel, combination prevention approaches, particularly relevant to gender- and sexual-minority youth facing co-occurring health risks; (3) evaluation of uptake of and adherence to biomedical prevention modalities; and 4) evaluation of interventions designed to promote or optimize engagement in care and antiretroviral therapy adherence in HIV-positive youth, to optimize viral load suppression. METHODS: iTech brings together multidisciplinary experts in the fields of adolescent HIV treatment and prevention, development and evaluation of technology-based interventions, HIV surveillance and epidemiology, and intervention design and evaluation. This initiative will support 8 efficacy trials and 2 exploratory projects, each led by 2 principal investigators. Taken together, the studies address all of the key steps of the HIV prevention and care continuum for youth in the United States. Each proposal uses technology in a scientifically rigorous and innovative way to access, engage, and impact at-risk or infected youth. Nine iTech subject recruitment venues are spread across 8 US cities. Three cores (management, analytic, and technology) support all iTech activities and form the research network's infrastructure, facilitating all aspects of study implementation and evaluation. RESULTS: Formative work has already begun on many of the above-mentioned iTech trials. We expect the first randomized controlled trials to begin in mid-2018. Additional details can be found in the individual intervention protocol papers in this issue. CONCLUSIONS: Through its comprehensive research portfolio, iTech aims to effectively advance HIV prevention and care for youth through technology-based, youth-relevant interventions that maximize adaptability and sustainability
Benchmarking treewidth as a practical component of tensor-network--based quantum simulation
Tensor networks are powerful factorization techniques which reduce resource
requirements for numerically simulating principal quantum many-body systems and
algorithms. The computational complexity of a tensor network simulation depends
on the tensor ranks and the order in which they are contracted. Unfortunately,
computing optimal contraction sequences (orderings) in general is known to be a
computationally difficult (NP-complete) task. In 2005, Markov and Shi showed
that optimal contraction sequences correspond to optimal (minimum width) tree
decompositions of a tensor network's line graph, relating the contraction
sequence problem to a rich literature in structural graph theory. While
treewidth-based methods have largely been ignored in favor of dataset-specific
algorithms in the prior tensor networks literature, we demonstrate their
practical relevance for problems arising from two distinct methods used in
quantum simulation: multi-scale entanglement renormalization ansatz (MERA)
datasets and quantum circuits generated by the quantum approximate optimization
algorithm (QAOA). We exhibit multiple regimes where treewidth-based algorithms
outperform domain-specific algorithms, while demonstrating that the optimal
choice of algorithm has a complex dependence on the network density, expected
contraction complexity, and user run time requirements. We further provide an
open source software framework designed with an emphasis on accessibility and
extendability, enabling replicable experimental evaluations and future
exploration of competing methods by practitioners.Comment: Open source code availabl
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