Rapid Characterization of Point Defects in Solid-State Ion Conductors Using Raman Spectroscopy, Machine-Learning Force Fields, and Atomic Raman Tensors.

The successful design of solid-state photo- and electrochemical devices depends on the careful engineering of point defects in solid-state ion conductors. Characterization of point defects is critical to these efforts, but the best-developed techniques are difficult and time-consuming. Raman spectroscopy─with its exceptional speed, flexibility, and accessibility─is a promising alternative.

Influence of Sr-Site Deficiency, Ca/Ba/La Doping on the Exsolution of Ni from SrTiO.

Cermet catalysts formed via exsolution of metal nanoparticles from perovskites promise to perform better in electro- and thermochemical applications than those synthesized by conventional wet-chemical approaches. However, a shortage of robust material design principles still stands in the way of widespread commercial adoption of exsolution. Working with Ni-doped SrTiO solid solutions, we investigated how the introduction of Sr deficiency as well as Ca, Ba, and La doping on the Sr site changed the size and surface density of exsolved Ni nanoparticles.

Community reinforcement approach (CRA) supported with structured recreation therapy: Experiences of people living with HIV in a pilot substance use treatment program at a specialty hospital.

Introduction: Community reinforcement approach (CRA) is a behavioral intervention that has demonstrated favorable treatment outcomes for individuals with substance use disorders across studies. CRA focuses on abstinence; however, abstinence is not a desired goal among all people who use substances. Previous research has called for harm reduction-oriented treatment programs, especially within hospital settings.

Philanthropic donor perspectives about providing harm reduction services for people living with HIV/AIDS in a hospital setting.

Background: Hospital-based harm reduction services are needed to reduce drug-related harms, facilitate retention in care, and increase medical treatment adherence for people who use drugs. Philanthropic donor support plays a key role in delivering such innovative services which might fall outside current funding streams. However, little is known about how the principles, implementation, and practice of harm reduction services, which are often highly stigmatized, may impact donor behaviours.

A structuration theory guided analysis of the hospitalization experience for people living with HIV who use drugs: My rules and their rules.

People living with HIV (PLWH) who use drugs in harmful amounts, types and/or modes of consumption (e.g., drugs from unregulated sources) experience barriers to accessing conventional healthcare services.

Toward Controlling Filament Size and Location for Resistive Switches via Nanoparticle Exsolution at Oxide Interfaces.

Memristive devices are among the most prominent candidates for future computer memory storage and neuromorphic computing. Though promising, the major hurdle for their industrial fabrication is their device-to-device and cycle-to-cycle variability. These occur due to the random nature of nanoionic conductive filaments, whose rupture and formation govern device operation.

MMPI F-K index among hospitalized Vietnam veterans.

The F-K index of the MMPI has been used as a marker of symptom overreporting. One population for which previous research has shown this pattern is Vietnam in-country veterans with PTSD. This study assessed the F-K index on 515 inpatients: 329 Vietnam in-country and 186 Vietnam-era patients.

Key determinants of the MMPI-PTSD subscale: treatment considerations.

Seventy-five "in country" Vietnam combat psychiatric inpatients were given a battery of measures upon admission to the medical center. These included the MMPI, VETS Adjustment Scale, State-Trait Anxiety Scale, Rotter Locus of Control, Profile of Mood Scale, and a variation of the Figley Stress Scale that measures current stress. Post-traumatic stress disorder (PTSD) was determined by the MMPI-PTSD subscale.

Evidence for microbial transfer by spermatozoa.

Ovulatory-phase cervical mucus columns demonstrate that microorganisms migrate in the cervical mucus with moving spermatozoa. Cultures obtained from the distal end of the mucus column after spermatozoal migration was complete yielded the same aerobic and anaerobic microbial isolates that were originally recovered from the seminal fluid. Exogenous aerobic bacteria added to the seminal fluid.

Microbial presence in the uterine cavity as affected by varieties of intrauterine contraceptive devices.

A group of 33 baboons was used to study the effect of various intrauterine device (IUD) assemblies on the entrance of vaginal/cervical microflora into the uterine cavity for a total experimental period of 16 months. These animals were specially prepared surgically so that intrauterine samples could be taken aseptically and percutaneously rather than transvaginally. While the insertion and presence of any of the IUD assemblies used in this study could promote intrauterine bacteria, the principal determining factor was not the device itself, but rather retrieval tail.

Examination of human semen infected with Ureaplasma urealyticum by fluorescence microscopy.

Semen specimens from men complaining of involuntary infertility were cultured for Ureaplasma urealyticum and large-colony mycoplasmas. Samples positive for ureaplasmas (but negative for large-colony mycoplasmas) were washed and stained with a DNA-binding fluorochrome (Hoechst No. 33258) and examined by fluorescence microscopy.

Asymptomatic bacteriospermia in infertile men.

The aerobic and anaerobic flora of the semen was examined in 109 men visiting our infertility clinic. Not one specimen was sterile and 107 specimens contained two or more different bacterial species. Anaerobic organisms were found in 63.

Ureaplasma urealyticum and human infertility: the effect of antibiotic therapy on semen quality.

Semen characteristics were evaluated in 64 men visiting our infertility clinic before and after the eradication of genital infection with Ureaplasma urealyticum. Semen quality was also analyzed in 9 men who were unsuccessfully treated for genital Ureaplasma infection, 11 men who had negative cultures and received no treatment, and 11 men who had negative cultures but received empirical antibiotic therapy. A significant improvement in spermatozoal motility (both the speed of forward progession and the percentage of motile cells) was found in the group that was successfully treated for Ureaplasma infection.

The normal microbial flora of the baboon vagina.

The microbial flora of the upper vagina and cervix was examined in 38 adult baboons at various stages of the menstrual cycle. The mean number of different species isolated from each baboon was 9.5, with species of Bacteroides, Corynebacterium and group D streptococci predominating.

Light microscopy as an aid in predicting ureaplasma infection in human semen.

The potential role of Ureaplasma urealyticum in human infertility make it desirable to screen barren couples for this infection. Semen specimens from 96 consecutive patients were evaluated in our clinic. Microbiologic results were correlated with the percentage of coiled and fuzzy tails in seminal cytology.

Lipids of antibiotic-resistant and -susceptible members of the Enterobacteriaceae.

Lipids of antibiotic-resistant and related -susceptible strains of the Enterobacteriaceae were extracted with chloroform-methanol and characterized by thin-layer chromatography, densitometry, and fatty acid analysis using gas chromatography. Quantitative differences which correlated with antibiotic resistance existed among the phospholipids and fatty acids. A relatively higher concentration of a ninhydrin-positive phospholipid concentration with a lower amount of phosphatidylethanolamine was observed in antibiotic-resistant strains of serratia marcescens.