A full-factorial randomized controlled trial of adjunct couples HIV testing and counseling components addressing drug use and communication skills among sexual minority male couples.

Background: The past decade has seen increasing attention directed to the development of HIV prevention interventions for male couples, driven by epidemiological data indicating that main or primary - rather than causal - partnerships account for a substantial number of HIV infections in this population. Couples HIV testing and counseling (CHTC) has emerged as a standard of care in the US. This protocol describes a study that aims to evaluate the efficacy of two adjunct components to CHTC - communication training (CT) videos and a substance use module (SUM) - to reduce drug use and sexual HIV transmission risk behavior.

Perceived Risk, Optimistic Bias, and United Action: A socio-ecological examination of COVID-19 prevention behaviors among sexual minority men.

Sexual minority men (SMM) disproportionately experience psychosocial risk factors and comorbid health concerns (e.g., HIV infection) that increase their vulnerability to COVID-19 infection and distress.

How Can I Get COVID?: Understanding Differences in American Heterosexual and Sexual Minority Men's Risk Perception.

Men are more vulnerable to COVID-19 infections compared to women, but their risk perceptions around COVID-19 are persistently lower. Further, men often engage in less health promotion behavior because self-care in this capacity is seen as weak or less masculine. This combination has consequences for mortality; thus, a better understanding of men's COVID-19 cognitions and individual difference factors is critical.

Changes in Utilization of Birth Control and PrEP During COVID-19 in the USA: A Mixed-Method Analysis.

In the USA, the COVID-19 pandemic has created challenges beyond the direct consequences of the infection. Because of shifting resources in response to need, many domains within the healthcare sector unrelated to COVID-19 have had interrupted abilities to provide care. In the current study, we focus on preventative sexual health care during the pandemic.

The gastrointestinal nematodes of plains and Grevy's zebras: Phylogenetic relationships and host specificity.

Equids are chronically infected with parasitic strongyle nematodes. There is a rich literature on horse strongyles, but they are difficult to identify morphologically and genetic studies on strongyles infecting other equid species are few, hampering studies of host specificity. We sequenced expelled worms from two sympatric zebra species in central Kenya to expand the strongyle phylogeny and used DNA metabarcoding on faecal samples to genetically characterize zebra nemabiomes for the first time.

NSUN6, an RNA methyltransferase of 5-mC controls glioblastoma response to temozolomide (TMZ) via NELFB and RPS6KB2 interaction.

Nop2/Sun RNA methyltransferase (NSUN6) is an RNA 5-methyl cytosine (5mC) transferase with little information known of its function in cancer and response to cancer therapy. Here, we show that NSUN6 methylates both large and small RNA in glioblastoma and controls glioblastoma response to temozolomide with or without influence of the MGMT promoter status, with high NSUN6 expression conferring survival benefit to glioblastoma patients and in other cancers. Mechanistically, our results show that NSUN6 controls response to TMZ therapy via 5mC-mediated regulation of NELFB and RPS6BK2.

Factors affecting call usage in wild black-and-white ruffed lemurs (Varecia variegata) at Mangevo, Ranomafana National Park.

Vocal communication is an important modality for group-living primates inhabiting dense forest habitats that can hinder visual and olfactory signals. Nevertheless, research on primate vocalizations has historically focused on a narrow subset of haplorhine taxa; comparatively few studies have been focused on strepsirrhines, despite facing similar ecological and social challenges. Ruffed lemurs (Varecia)-a taxon known for their raucous calls-are rainforest specialists that exhibit strong fission-fusion dynamics and communally rear large litters of young.

Keeps me awake at night: The potential of the COVID-19 pandemic to affect sleep quality among sexual minority men in the U.S.A.

Sleep health, a crucial component and predictor of physical and mental health, has likely been adversely impacted by the stress and disruption wrought by the COVID-19 pandemic. This brief report sought to assess self-reported sleep quality among sexual minority men across the U.S.

Tailoring plasmon excitations in [Formula: see text] armchair nanoribbons.

We have calculated and investigated the electronic states, dynamical polarization function and the plasmon excitations for [Formula: see text] nanoribbons with armchair-edge termination. The obtained plasmon dispersions are found to depend significantly on the number of atomic rows across the ribbon and the energy gap which is also determined by the nanoribbon geometry. The bandgap appears to have the strongest effect on both the plasmon dispersions and their Landau damping.

Cognitive function mediates the relationship between visual contrast sensitivity and functional outcome in schizophrenia.

Background: Individuals with schizophrenia exhibit deficits in visual contrast processing, though less is known about how these deficits impact neurocognition and functional outcomes. This study investigated effects of contrast sensitivity (CS) on cognition and capacity for independent living in schizophrenia.

Methods: Participants were 58 patients with schizophrenia (n = 49) and schizoaffective disorder (n = 9).

Cancer cells with defective RB and CDKN2A are resistant to the apoptotic effects of rapamycin.

Inhibition of mammalian target of rapamycin complex 1 (mTORC1) with rapamycin in the absence of transforming growth factor-β (TGFβ) signaling induces apoptosis in many cancer cell lines. In the presence of TGFβ, rapamycin induces G cell cycle arrest; however, in the absence of TGFβ, cells do not arrest in G and progress into S-phase where rapamycin is cytotoxic rather than cytostatic. However, we observed that DU145 prostate and NCI-H2228 lung cancer cells were resistant to the cytotoxic effect of rapamycin.

Coherent-scatterer enhancement and Klein-tunneling suppression by potential barriers in gapped graphene with chirality-time-reversal symmetry.

We have utilized the finite-difference approach to explore electron-tunneling properties in gapped graphene through various electrostatic-potential barriers ranging from Gaussian to a triangular envelope function in comparison with a square potential barrier. The transmission coefficient is calculated numerically for each case and applied to the corresponding tunneling conductance. It is well known that Klein tunneling in graphene will be greatly reduced in gapped graphene.

Effectiveness of a Combined Motivational Interviewing and Cognitive Behavioral Intervention to Reduce Substance Use and Improve HIV-Related Immune Functioning.

This study evaluated the effectiveness of Project PLUS, a 6-session Motivational Interviewing and Cognitive Behavioral intervention to reduce substance use and improve antiretroviral therapy (ART) adherence among PLWH. In a quasi-experimental design, 84 participants from a network of three comprehensive care clinics in New York City received the intervention immediately post-baseline (the Immediate condition) and 90 were assigned to a Waitlist control. Viral load and CD4 data were extracted from electronic medical records (EMR) for a No-Intervention comparison cohort (n = 120).

Maternal feeding benefits of allomaternal care in black-and-white colobus (Colobus guereza).

Caring for infants involves lactation, protection, provisioning, and carrying-all energetically taxing states for primate mothers. Holding and carrying clinging infants often constrains mothers from moving and traveling, potentially reducing their food and energy intake; however, when separated from its mother an infant is at risk of predation. This separation therefore requires that mothers be vigilant, further deterring them from feeding.

Engineering plasmon modes and their loss in armchair graphene nanoribbons by selected edge-extended defects.

The effect of edge modification of armchair graphene nanoribbons (AGNRs) on the collective excitations are theoretically investigated. The tight-binding method is employed in conjunction with the dielectric function. Unconventional plasmon modes and their association with the flat bands of the specially designed AGNRs are thoroughly studied.

Sexual Shame and Emotion Dysregulation: Key Roles in the Association between Internalized Homonegativity and Sexual Compulsivity.

Sexual minority men (SMM) are at increased risk for mental health problems due to effects of sexual minority stigma (e.g., internalized homonegativity (IH)).

MicroRNA-1205 Regulation of FRYL in Prostate Cancer.

High mortality rates of prostate cancer (PCa) are associated with metastatic castration-resistant prostate cancer (CRPC) due to the maintenance of androgen receptor (AR) signaling despite androgen deprivation therapies (ADTs). The 8q24 chromosomal locus is a region of very high PCa susceptibility that carries genetic variants associated with high risk of PCa incidence. This region also carries frequent amplifications of the PVT1 gene, a non-protein coding gene that encodes a cluster of microRNAs including, microRNA-1205 (miR-1205), which are largely understudied.

Pilot Randomized Trial of an Expressive Writing Intervention to Reduce Sexual HIV-Transmission Risk and Substance Use Among Emerging Adult Gay and Bisexual Men.

This pilot randomized controlled trial evaluated the feasibility, acceptability, and preliminary efficacy of expressive writing to reduce HIV-related sexual risk taking and symptoms of drug dependence among emerging adult gay and bisexual men (EAGBM) through linguistic mechanisms involving use of words associated with cognitive processing (e.g., think, cause), positive emotion (e.

Drunk Texting: When the Phone Becomes a Vehicle for Emotional Dysregulation and Problematic Alcohol Use.

Drunk texting is an understudied phenomenon, despite its ubiquity and evidence suggesting it may be implicated in heavy drinking. Research on texting motivations and use of the phone as a tool for self-regulation also represent newly emerging areas of study. The goal of the current study was to examine how drunk texting relates to drinking based on difficulties in emotional regulation and texting motivations in a sample of 2,559 women.

Applications of Fluorous Porphyrinoids: An Update.

Porphyrins and related macrocycles have been studied broadly for their applications in medicine and materials because of their tunable physicochemical, optoelectronic and magnetic properties. In this review article, we focused on the applications of fluorinated porphyrinoids and their supramolecular systems and summarized the reports published on these chromophores in the past 5-6 years. The commercially available fluorinated porphyrinoids: meso-perfluorophenylporphyrin (TPPF ) perfluorophthalocyanine (PcF ) and meso-perfluorophenylcorrole (CorF ) have increased photo and oxidative stability due to the presence of fluoro groups.

Pilot Randomized Controlled Trial of Motivational Interviewing with Sexual Minority Male Couples to Reduce Drug Use and Sexual Risk: The Couples Health Project.

A randomized controlled trial evaluated the preliminary efficacy of a dyadically-delivered motivational interviewing (MI) intervention to reduce drug use and sexual risk in a sample of 50 sexual minority (cis)male (SMM) couples. In each couple, at least one partner was aged 18-29; reported drug use and sexual HIV transmission risk; and was HIV-negative. Couples were randomized to either the three-session MI intervention or an attention-matched control, with follow-up surveys completed at 3- and 6-months post-baseline.

Western chimpanzees (Pan troglodytes verus) access a nutritionally balanced, high energy, and abundant food, baobab (Adansonia digitata) fruit, with extractive foraging and reingestion.

Intrinsic to several hypotheses explaining the evolution of foraging behavior complexity, such as proto-tool use, is the assumption that more complex ingestive behaviors are adaptations allowing individuals to access difficult to procure but nutritionally or energetically rewarding foods. However, nutritional approaches to understanding this complexity have been underutilized. The goal of this study was to evaluate potential nutritional determinants of two unusual foraging behaviors, fruit cracking with anvils and seed reingestion, by adult male western chimpanzees (Pan troglodytes verus) at Fongoli, Senegal during the baobab (Adansonia digitata) fruit season.

The Role of Frailty in Predicting 3 and 6 Months Functional Decline in Hospitalized Older Adults: Findings from a Secondary Analysis.

Frailty represents one of the most relevant geriatric syndromes in the 21st century and is a predictor of adverse outcomes in hospitalized older adult, such as, functional decline (FD). This study aimed to examine if frailty, evaluated with the Frailty Index (FI), can predict FD during and after hospitalization (3 and 6 months). Secondary data analysis of a prospective cohort study of 101 hospitalized older adults was performed.

Defect capturing and charging dynamics and their effects on magneto-transport of electrons in quantum wells.

The calculated defect corrections to the polarization and dielectric functions for Bloch electrons in quantum wells are presented. These results were employed to derive the first two moment equations from the Boltzmann transport theory and then applied to explore the role played by defects on the magneto-transport of Bloch electrons. Additionally, we have derived analytically the inverse momentum-relaxation time and mobility tensor for Bloch electrons by making use of the screened defect-corrected polarization function.

Innovative Communities: A Global Nursing Perspective.

The author in this article explores four innovations in communities that offer a place of welcome and growth while inviting all to see people, including those with intellectual or developmental challenges, elders, persons with dementia, and persons with chronic progressive diseases very differently than is widely assumed. These four innovative communities are L'Arche Homes and Communities, the Green House Model of Long-Term Care, the village of Hogeweyk, Holland, and Lyfebulb. Implications for nursing and healthcare are discussed.