Publications by authors named "Mutchler M"

Despite their prevalence, family-living and cooperative breeding in birds have received little examination as to how and why they vary across species. Investigating the evolution of these social systems, Bliard et al. (2024) found that the presence of avian predators is associated with birds' social systems, with increases in predator presence corresponding to multiple shifts from non-family-living to cooperative breeding.

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Objectives: Black Americans have been disproportionally affected by the HIV epidemic, and experience significant disparities in sleep health, mental health, and physical health domains. Using longitudinal data from a sample of Black adults with HIV, the current study examined the associations between stigma and mental and physical health outcomes and how sleep disturbance may play a mediating role.

Methods: Data were drawn from a recent randomized controlled trial.

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Black sexual minority men (SMM) are disproportionately impacted by HIV in the United States. Intimate partner violence (IPV), substance use, and depression are associated with HIV risk behavior such as condomless sex. In this study, we assessed cross-sectional associations between multiple types of IPV victimization and condomless sex with serodiscordant partners.

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Exposure to discrimination has been linked to lower HIV antiretroviral therapy (ART) adherence and poor HIV care outcomes among Black Americans. Coping has been shown to mitigate the harmful effects of discrimination on health behaviors, but the use of cultural relevant Africultural coping strategies is understudied as a moderator of the association between intersectional discrimination and ART adherence among Black Americans. We used adjusted logistic regression to test whether Africultural coping strategies (cognitive/emotional debriefing; collective; spiritual-centered; ritual-centered) moderated associations between multiple forms of discrimination (HIV, sexual orientation, race) and good ART adherence (minimum of 75% or 85% of prescribed doses taken, as measured by electronic monitoring in separate analyses) among 92 sexual minority Black Americans living with HIV.

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The Great American Biotic Interchange (GABI) was a key biogeographic event in the history of the Americas. The rising of the Panamanian land bridge ended the isolation of South America and ushered in a period of dispersal, mass extinction, and new community assemblages, which sparked competition, adaptation, and speciation. Diversification across many bird groups, and the elevational zonation of others, ties back to events triggered by the GABI.

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Loneliness, an emerging public health problem, is higher among people living with HIV and is associated with negative health outcomes. Black/African Americans have a high burden of HIV, and little is known about the characteristics of loneliness among Black adults living with HIV; therefore, this study sought to understand the sociodemographic and psychosocial correlates of Black adults living with HIV who are lonely and the implications of loneliness for their health outcomes. A sample of 304 Black adults living with HIV (73.

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The current study examined the prevalence and typology of unmet needs and the association between unmet needs and HIV antiretroviral therapy (ART) medication adherence among a sample of Black people living with HIV(PLHIV) (N = 304) in Los Angeles, CA. We found a high prevalence of unmet needs, with 32% of participants reporting having two or more unmet needs. The most common unmet needs category was basic benefits needs (35%), followed by subsistence needs (33%), and health needs (27%).

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Structural inequities have led to HIV disparities, including relatively low antiretroviral therapy adherence and viral suppression rates among Black Americans living with HIV. We conducted a randomized controlled trial of Rise, a community-based culturally congruent adherence intervention, from January 2018 to December 2021 with 166 (85 intervention, 81 control) Black adults living with HIV in Los Angeles County, California [M (SD) = 49.0 (12.

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Background: The yield of next-generation sequencing (NGS) added to a Sanger sequencing-based 16S ribosomal RNA (rRNA) gene polymerase chain reaction (PCR) assay was evaluated in clinical practice for diagnosis of bacterial infection.

Methods: PCR targeting the V1 to V3 regions of the 16S rRNA gene was performed, with amplified DNA submitted to Sanger sequencing and/or NGS (Illumina MiSeq) or reported as negative, depending on the cycle threshold value. A total of 2146 normally sterile tissues or body fluids were tested between August 2020 and March 2021.

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We are not aware of any validated sexual health communication scales for use with young men who have sex with men (YMSM). We used data from an HIV prevention study in Lebanon with 226 YMSM aged 18-29 to assess the psychometric characteristics of our scale, Judgmental Communication with Peers about Sex (JCPS). The construct validity of the JCPS scale was supported by it being negatively correlated with general social support, percentage of alters perceived to be supportive, and the percentage of peers who are perceived to use condoms.

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The epidemiology of macrolide resistance in () in the United States is incompletely described. Using a PCR assay targeting common mutations associated with macrolide resistance in M. pneumoniae (23S rRNA gene, A2063G/A2064G), the frequency of macrolide resistance was estimated to be 10% based on analysis of 114 samples tested from January 2014 to September 2021 at Mayo Clinic Laboratories.

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Perceived discrimination and medical mistrust are contributors to HIV inequities. The current study examined whether medical mistrust mediated the associations between perceived discrimination and adherence to antiretroviral therapy (ART) as well as care engagement in a sample of 304 Black adults living with HIV. Perceived discrimination and medical mistrust were measured using validated scales; ART adherence was electronically monitored for a month; care engagement was determined by medical record data.

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Background: Medical mistrust, a result of systemic racism, is prevalent among Black Americans and may play a role in COVID-19 inequities. In a convenience sample of HIV-positive Black Americans, we examined associations of COVID-19-related medical mistrust with COVID-19 vaccine and COVID-19 treatment hesitancy and negative impacts of COVID-19 on antiretroviral therapy (ART) adherence.

Methods: Participants were 101 HIV-positive Black Americans (age: M = 50.

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Sexual violence has been found to have psychosocial and sexual ramifications for men who have sex with men (MSM) but has not been studied in the Middle East. We assessed the prevalence and correlates of experiences of child and post-child sexual violence among young MSM residing in Beirut, Lebanon. In total, 226 MSM, aged 18 to 29, were recruited with long-chain peer referrals and administered a survey that included questions on history of being pressured to have sex, as well as specific forms of sexual harassment and abuse, in addition to measures of psychosocial functioning and sexual behavior.

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Black men who have sex with men (BMSM) show lower levels of adherence to antiretroviral therapy (ART) for HIV medications than other racial/ethnic groups in the U.S. Yet, little is known about age differences in factors that predict ART adherence among BMSM.

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Black people living with HIV (BPLWH) are less likely to adhere to antiretroviral treatment than are members of other racial/ethnic groups. Data were combined from two studies of BPLWH (n = 239) to estimate adherence trajectories using a semiparametric, group-based modeling strategy over three time-points (spanning 6 months). Analyses identified three groups of individuals (high-stable, moderately low-stable, low-decreasing).

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Asteroids are primitive Solar System bodies that evolve both collisionally and through disruptions arising from rapid rotation. These processes can lead to the formation of binary asteroids and to the release of dust, both directly and, in some cases, through uncovering frozen volatiles. In a subset of the asteroids called main-belt comets, the sublimation of excavated volatiles causes transient comet-like activity.

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Young gay men in Beirut are at significantly elevated risk of HIV infection compared with the general Lebanese population. Despite nascent HIV prevention efforts in the region, there is a need for effective community-level HIV prevention interventions tailored for young gay men. This qualitative study examined internal dynamics within Beirut's gay community as a basis for developing community-level interventions.

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In the United States, black men who have sex with men (MSM) are the group most affected by the HIV/AIDS epidemic. Pre-exposure prophylaxis (PrEP) is an important new HIV prevention strategy that may help reduce new HIV infections among black MSM. This analysis examined the association between HIV/AIDS conspiracy beliefs and intentions to adopt PrEP among 224 black MSM.

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HIV disproportionately affects young Black men who have sex with men in the USA, with especially high rates in the Deep South. In this Alabama study, we interviewed 24 pairs of young Black men who have sex with men aged 19-24 and their close friends (n = 48) about sexual scripts, dating men and condom use. Three main themes emerged from the study: the power dynamics of 'top' and 'bottom' sexual positions for condom use; gender stereotyping in the iconic style of the 'I Love Lucy' show of the 1950s; and the sexual dominance of 'trade' men.

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