High photothermal conversion efficiency of RF sputtered TiO Magneli phase thin films and its linear correlation with light absorption capacity.

RF-sputtering is used to deposit TiO-Magneli-phase films onto various substrates at deposition temperatures (T) ranging from 25 to 650 °C. Not only the structural, but also electrical conductivity, optical absorbance and photothermal properties of the TiO films are shown to change significantly with T. A T of 500 °C is pointed out as the optimal temperature that yields highly-crystalized pure-TiO-Magneli phase with a densely-packed morphology and a conductivity as high as 740 S/cm.

Development of a City-wide Rapid Antiretroviral Therapy Initiation Toolkit for People Newly Diagnosed With HIV in the Southern United States.

Background: Rapid antiretroviral therapy (ART) initiation, in which individuals with HIV start treatment within days of diagnosis, is a key component of the United States (US) Ending the HIV Epidemic initiative. The Memphis Metropolitan Statistical Area ranks second in the US for HIV incidence, yet only ∼60% of individuals link to treatment within 1 month of diagnosis. This study aimed to identify barriers and strategies for implementing rapid ART initiation in Memphis.

Colossal Dielectric Constant of Nanocrystalline/Amorphous Homo-Composite BaTiO Films Deposited via Pulsed Laser Deposition Technique.

We report the pulsed laser deposition (PLD) of nanocrystalline/amorphous homo-composite BaTiO (BTO) films exhibiting an unprecedented combination of a colossal dielectric constant () and extremely low dielectric loss (tan ). By varying the substrate deposition temperature () over a wide range (300-800 °C), we identified = 550 °C as the optimal temperature for growing BTO films with an as high as ~3060 and a tan as low as 0.04 (at 20 kHz).

Multi-spectroscopic characterization system for cultural heritage materials analysis (SYSPECTRAL): Conception and example.

A comprehensive understanding of chemical composition of cultural heritage materials usually requires several complementary analytical techniques. Given the fragility and value of artworks, minimizing or avoiding sampling and performing in situ analysis under ambient light is an important goal. This article outlines a novel prototype designed to merge LIBS, laser-induced fluorescence spectroscopy (LIF), Raman spectroscopy using a single pulsed laser, and reflectance spectroscopy in a multi-spectroscopic characterization system for cultural heritage analysis (SYSPECTRAL).

Per-and polyfluoroalkyl (PFAS) eternal pollutants: Sources, environmental impacts and treatment processes.

Per- and polyfluoroalkyl substances (PFAS) have become a growing environmental concern due to their tangible impacts on human health. However, due to the large number of PFAS compounds and the analytical difficulty to identify all of them, there are still some knowledge gaps not only on their impact on human health, but also on how to manage them and achieve their effective degradation. PFAS compounds originate from man-made chemicals that are resistant to degradation because of the presence of the strong carbon-fluorine bonds in their chemical structure.

Associations Between Sociodemographic Variables, Social Determinants of Health, and Diabetes: Findings From a Congregational Health Needs Assessment.

Purpose: To examine associations between sociodemographic variables, social determinants of health (SDOHs) and diabetes using health needs assessment data.

Design: Cross-sectional study.

Setting: Faith-based communities in the Mid-South U.

HIV and Hepatitis C Among People Who Inject Drugs in Memphis, Tennessee: an Intersectional Risk Environment Analysis of the Social Determinants of Health.

Background: The Southern US is confronting bourgeoning HIV and hepatitis C virus (HCV) epidemics among people who inject drugs (PWID), yet little is known about shared and unique risk factors across the region. We applied an intersectional risk environment framework to understand infectious disease outcomes for sub-groups of PWID that experience multiple axes of social marginalization related to racial and ethnic identity and social and economic vulnerability.

Methods: HIV and HCV prevalence was estimated from the first iteration of the CDC's National HIV Behavioral Surveillance respondent driven sample of PWID in Shelby County, Tennessee in 2018.

Evaluating newly approved drugs in combination regimens for multidrug-resistant tuberculosis with fluoroquinolone resistance (endTB-Q): study protocol for a multi-country randomized controlled trial.

Background: Treatment for fluoroquinolone-resistant multidrug-resistant/rifampicin-resistant tuberculosis (pre-XDR TB) often lasts longer than treatment for less resistant strains, yields worse efficacy results, and causes substantial toxicity. The newer anti-tuberculosis drugs, bedaquiline and delamanid, and repurposed drugs clofazimine and linezolid, show great promise for combination in shorter, less-toxic, and effective regimens. To date, there has been no randomized, internally and concurrently controlled trial of a shorter, all-oral regimen comprising these newer and repurposed drugs sufficiently powered to produce results for pre-XDR TB patients.

Process Mapping to inform implementation of Trauma-Informed Care for youth aged 14-24 with HIV in the Southern United States.

Background: Trauma-Informed Care (TIC) is an evidence-based approach for improving health outcomes by providing systematic, trauma- sensitive and -responsive care. Because TIC adoption varies by setting and population, Implementation Science (IS) is particularly well-suited to guide roll-out efforts. Process Mapping (PM) is an IS model for creating shared visual depictions of systems as to identify rate-limiting steps of intervention adoption, but guidance on to apply PM to guide TIC adoption is lacking.

Type of Exchange Sex and Associated Behaviors and Outcomes Among Cisgender Men and Women at Increased Risk for HIV via Heterosexual Transmission in Six U.S. Metropolitan Areas.

Exchange sex is associated with sexual risk behaviors and poor outcomes and different types may incur different levels of risk. We assessed risk profiles of different types of exchange sex among non-injecting cisgender men and women who participated in the 2019 National HIV Behavioral Surveillance project at six sites. Six percent of men and 19% of women reported exchange sex in the past year; most engaged in non-commercial exchange sex for drugs/money with smaller percentages reporting formal sex work or non-commercial exchange sex for goods or services other than drugs/money.

Violence, Discrimination, Psychological Distress, and HIV Vulnerability Among Men Who Have Sex With Men in Memphis, Tennessee.

Gay, bisexual, and other men who have sex with men (MSM) are disproportionally impacted by HIV. Discrimination, violence, and psychological distress (PD) may influence engagement with HIV prevention services and amplify HIV vulnerability among this priority population. These dynamics are understudied in the Southern United States.

Perceived Health Needs of Church Leaders and Members: A Secondary Data Analysis of the Mid-South Congregational Health Survey.

Needs assessments have been successful in helping communities and congregations focus their health ministry efforts; however, most have used leader perceptions of congregational health needs. The purpose of this study was to examine and compare the self-reported needs of both church leaders and members to be addressed by their congregation. Church leaders ( = 369) and members ( = 459) from 92 congregations completed the 2019 Mid-South Congregational Health Survey.

An Engaged Community of Faith to Decrease HIV Stigma in the U.S. South.

Community members from a city in the U.S. Deep South identified root causes of HIV racial disparities, including stigma.

Sharing Lived Experiences of HIV Stigmatization: Process of Disseminating a Traveling Photovoice Exhibit.

A Memphis-based, community-academic partnership created Snap Out Stigma, a photovoice project, to understand lived experiences of HIV stigma among people with HIV. This report describes traveling photovoice exhibit dissemination strategies, lessons learned, and goals for the future of photovoice dissemination activities and community engagement in Memphis.

Relation between Mechanical Hardening and Nitrogen Profile of PBII Nitrided Titanium Alloy.

Surface treatments of Ti-6Al-4V alloys are of utmost importance for biomedical applications since they allow for tribological gain. Here, Ti-6Al-4V disks have been PBII nitrided at either 500, 600, 700 and 800 °C. A set of techniques (XRD, SEM-EDS, EBSD and GDOES) was used to characterize the surface microstructural and chemical changes.

Engaging Black men who have sex with men (MSM) in the South in identifying strategies to increase PrEP uptake.

Background: Promotion, uptake, and adherence of pre-exposure prophylaxis (PrEP) is paramount to ending the HIV epidemic among young Black men who have sex with men in the South. The purpose of this study was to explore strategies needed for and barriers to PrEP uptake needed to achieve HIV prevention goals identified in the U.S.

Factors Associated with E-Cigarette Quit Intention Among Adolescents in the United States.

Given increasing use of e-cigarettes among adolescents in the United States and its potential for nicotine addiction, encouraging adolescents to quit using these products has become a public health priority. This study examined factors at various socio-ecological levels associated with e-cigarette quit intention (pre-contemplation, contemplation, or preparation) using the Stages of Change of the Trans-theoretical Model among the U.S.

Silicon nanowires-based biosensors for the electrical detection of Escherichia coli.

One of the main challenges in terms of public health concerns the prevention of bacterial contamination using rapid, highly sensitive and specific detection techniques. The development of highly sensitive bacterial sensors for Escherichia coli detection based on networks of silicon nanowires has been carried out in this work. The interest of these nano-objects takes advantage in a large contact surface allowing potentially important interactions with bacteria.

Congregational health needs by key demographic variables: Findings from a congregational health needs assessment tool.

Health needs assessments identify important issues to be addressed and assist organizations in prioritizing resources. Using data from the Mid-South Congregational Health Survey, top health needs (physical, mental, social determinants of health) were identified, and differences in needs by key demographic variables (age, sex, race/ethnicity, education) were examined. Church leaders and members (N = 828) from 92 churches reported anxiety/depression (65 %), hypertension/stroke (65 %), stress (62 %), affordable healthcare (60 %), and overweight/obesity (58 %) as the top health needs in their congregations.

Snap out stigma photovoice project in the U.S. South.

Background: The purpose of SNAP Out Stigma (SOS) was to design and implement a community-based intervention to reduce HIV-related stigma for people living with HIV (PLWH) in the Deep South. This region is a subset of 9 states including Memphis, Tennessee (project site) driving the epidemic in the United States. The purpose of this paper is to explain how PLWH in the U.

Comprehensive Process Mapping and Qualitative Interviews to Inform Implementation of Rapid Linkage to HIV Care Programs in a Mid-Sized Urban Setting in the Southern United States.

Background: Rapid antiretroviral therapy (ART) initiation, in which people living with HIV start ART within days of diagnosis, is a key component of the US Ending the HIV Epidemic initiative.

Setting: The Memphis Metropolitan Statistical Area ranked fourth in the United States for the highest HIV incidence per 100,000 population in 2018. Rapid ART programs are limited in the Memphis Metropolitan Statistical Area, and our objective was to identify local implementation barriers.

Emerging nuclear methods for historical painting authentication: AMS-C dating, MeV-SIMS and O-PTIR imaging, global IBA, differential-PIXE and full-field PIXE mapping.

There is a considerable interest in developing new analytical tools to fight the illicit trafficking of heritage goods and particularly of easel paintings, whose high market values attract an ever-increasing volume of criminal activities. The objective is to combat the illicit traffic of smuggled or forged paintworks and to prevent the acquisition of fakes or looted artefacts in public collections. Authentication can be addressed using various investigation techniques, such as absolute dating, materials characterization, alteration phenomena, etc.

Sustaining an HIV Prevention and Wellness Program for Sexual Gender Minorities during the COVID-19 Pandemic.

Improving mental health, body image, and financial stability is paramount to achieving viral suppression and maintaining HIV-negative status for minoritized communities. The purpose of this paper is to describe the lessons learned from maintenance of an HIV prevention and wellness program during the COVID-19 pandemic. A three-session program was implemented in a hybrid format to account for county-wide restrictions and reopening processes.