280 research outputs found
Exploring Factors Associated with Nonchange in Condom Use Behavior following Participation in an STI/HIV Prevention Intervention for African-American Adolescent Females
To enhance future STI/HIV prevention efforts, this study examined factors associated with adolescents' failure to improve their condom use behaviors after participating in an STI/HIV prevention intervention. African-American adolescent females (N = 205; M age = 17.9) in an STI/HIV prevention intervention trial completed ACASI interviews and provided self-collected vaginal swabs to assess two prevalent STIs at baseline and 6 months after intervention. Analyses compared those who increased condom use after intervention (change group) to those whose condom use did not increase (nonchange group). 43.4% did not increase their condom use after the intervention and were more likely to have an STI at followup (χ2 = 4.64, P = .03). In a multivariate logistic regression model, the nonchange group was more likely to have (a) higher sensation seeking (AOR = .91, P = .023), (b) a boyfriend (AOR = .32, P = .046), and/or (c) a physical abuse history (AOR = .56, P = .057). There were also differences in the extent to which psychosocial mediators changed between the two groups. Findings highlight the need to tailor STI/HIV interventions to adolescents with a greater degree of sensation seeking and address key relationship characteristics and trauma histories to bolster intervention efficacy
"As long as they eat"? Therapist experiences, dilemmas and identity negotiations of Maudsley and family-based therapy for anorexia nervosa
Background: Maudsley Family Therapy and its manualised version Family-Based Therapy for Anorexia Nervosa (FBT-AN) have accrued the most significant research evidence-base for the treatment of adolescent Anorexia Nervosa (AN). A tradition of seeking augmentations for this treatment has also been established to enhance efficacy. There exists, however, a gap in the uptake of this form of manualised treatment into the “real world” of clinicians who work with adolescent AN. Aims: This research study investigated the key experiences and identity negotiations of a group of nine Australian clinicians who were interested in contributing to research into ways that Maudsley and FBT-AN might be improved. Methods: Nine clinicians, who at the time of the interview practised or had previously practised, FBT-AN participated in a semi-structured interview. A critical discursive analysis of interview transcripts generated a thematic map of these therapists’ experiences and identity negotiations in their practice of FBT-AN. Results: These therapists experienced the structure of FBT-AN as both a secure map for therapy, yet also constraining at times, in their work with adolescents and their families. Additionally, their professional identities were both invested and troubled by the identity position of themselves as evidence-based practitioners, particularly where evidence-based practice (EBP) meant strict fidelity to the manual and restrained them from tailoring a broader range of therapeutic interventions to an individual adolescent and their family. Within their narratives, these therapists refashioned alternative identity positions around what it meant to be an evidence-based practitioner through listening to and drawing on their clinical expertise of what works in therapeutic practice with an individual adolescent and their family. Conclusions: These therapists narratives highlight the power of the dominant discourse of EBP that works to privilege the research evidence over other forms of evidence that include clinician expertise and client preferences. The dilemmas faced by these therapists questioned not only the strict application of FBT-AN for adolescent AN across diverse therapeutic contexts, but also the effects of supervisory practices that paralleled this strict fidelity to the model. Further research is needed into therapeutic interventions and supervisory practices that give greater scope for clinicians to draw on their expertise in the flexible tailoring of treatments to the unique needs and preferences of the individual adolescent and their family
Is It Time for Federal Regulation of the Tax Preparer Industry? New Insights from Legal and Empirical Developments
The tax preparer industry is unusual in that it involves the interpretation of an intricate and complicated tax code, but imposes no minimum requirements of competency because the industry is largely unregulated. A study by the Government Accountability Office (GAO) indicated that unregulated tax preparers commit significantly higher error rates and, based in part on that study’s findings, the Internal Revenue Service (IRS) attempted to regulate the tax preparer industry nationwide under the Registered Tax Return Preparer (RTRP) regime. This RTRP program was invalidated in Loving v. IRS, however, leaving the industry largely unregulated, except in the small minority of states that have enacted tax preparer regulations
Human immunodeficiency virus pre-exposure prophylaxis knowledge, attitudes, and self-efficacy among family planning providers in the Southern United States: Bridging the gap in provider training
BACKGROUND: Pre-exposure prophylaxis (PrEP) is an effective human immunodeficiency virus (HIV) prevention intervention, but its access and use are suboptimal, especially for women. Healthcare providers provision of PrEP is a key component of the
METHODS: We used data from providers in clinics that did not currently provide PrEP from a web-based survey administered to Title X clinic staff in 18 Southern states from February to June 2018. We developed generalized linear mixed models to evaluate associations between provider-, clinic-, and county-level variables with provider knowledge, attitudes, and self-efficacy in PrEP care, guided by the Consolidated Framework for Implementation Research.
RESULTS: Among 351 providers from 193 clinics, 194 (55%) were nonprescribing and 157 (45%) were prescribing providers. Provider ability to prescribe medications was significantly associated PrEP knowledge, attitudes, and self-efficacy. Self-efficacy was lowest in the PrEP initiation step of PrEP care and was positively associated with PrEP attitudes, PrEP knowledge, and contraception self-efficacy.
CONCLUSIONS: Our findings suggest that PrEP training gaps for family planning providers may be bridged by addressing unfavorable PrEP attitudes, integrating PrEP and contraception training, tailoring training by prescribing ability, and focusing on the initiation steps of PrEP care
The progenitors of the intra-cluster light and intra-cluster globular clusters in galaxy groups and clusters
We use the IllustrisTNG50 cosmological hydrodynamical simulation,
complemented by a catalog of tagged globular clusters, to investigate the
properties and build up of two extended luminous components: the intra-cluster
light (ICL) and the intra-cluster globular clusters (ICGC). We select the 39
most massive groups and clusters in the box, spanning the range of virial
masses . We
find good agreement between predictions from the simulations and current
observational estimates of the fraction of mass in the ICL and its radial
extension. The stellar mass of the ICL is only of the stellar
mass in the central galaxy but encodes useful information on the assembly
history of the group or cluster. About half the ICL in all our systems is
brought in by galaxies in a narrow stellar mass range,
. However, the contribution of low-mass galaxies (
) to the build-up of the ICL varies broadly from system to
system, , a feature that might be recovered from the observable
properties of the ICL at . At fixed virial mass, systems where the
accretion of dwarf galaxies plays an important role have shallower metallicity
profiles, less metal content and a lower stellar mass in the ICL than systems
where the main contributors are more massive galaxies. We show that
intra-cluster GCs are also good tracers of this history, representing a
valuable alternative when diffuse light is not detectable
Simulating the spatial distribution and kinematics of globular clusters within galaxy clusters in illustris
We study the assembly of globular clusters (GCs) in 9 galaxy clusters using the cosmological simulation Illustris. GCs are tagged to individual galaxies at their infall time. The tidal removal of GCs from their galaxies and the distribution of the GCs within the cluster is later followed self-consistently by the simulation. The method relies on the simple assumption of a single power-law relation between halo mass (Mvir) and mass in GCs (MGC) as found in observations. We find that the GCs specific frequency SN as a function of V-band magnitude naturally reproduces the observed ‘U’-shape due to the combination of the power law MGC–Mvir relation and the non-linear stellar mass (M∗)–halo mass relation from the simulation. Additional scatter in the SN values is traced back to galaxies with early infall times due to the evolution of the M∗–Mvir relation with redshift. GCs that have been tidally removed from their galaxies form the present-day intracluster component, from which about ∼60 per cent were brought in by galaxies that currently orbit within the cluster potential. The remaining ‘orphan’ GCs are contributed by satellite galaxies with a wide range of stellar masses that are fully tidally disrupted at z = 0. This intracluster component is a good dynamical tracer of the dark matter potential. As a consequence of the accreted nature of most intracluster GCs, their orbits are fairly radial with a predicted orbital anisotropy β ≥ 0.5. However, local tangential motions may appear as a consequence of localized substructure, providing a possible interpretation to the β < 0 values suggested in observations of M87.Fil: Ramos Almendares, Felipe Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaFil: Sales, Laura Virginia. University of California; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Abadi, Mario Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaFil: Muriel, Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaFil: Doppel, Jessica E.. University of California; Estados UnidosFil: Peng, Eric W.. Peking University; Chin
Imposters among us: globular cluster kinematics and the halo mass of ultra-diffuse galaxies in clusters
The velocity dispersion of globular clusters (GCs) around ultra-diffuse galaxies (UDGs) in the Virgo cluster spans a wide range, including cases where GC kinematics suggest haloes as massive as (or even more massive than) that of the Milky Way around these faint dwarfs. We analyse the catalogues of GCs derived in post-processing from the TNG50 cosmological simulation to study the GC system kinematics and abundance of simulated UDGs in galaxy groups and clusters. UDGs in this simulation reside exclusively in dwarf-mass haloes with M200 ≲ 1011.2 M⊙. When considering only GCs gravitationally bound to simulated UDGs, we find GCs properties that overlap well with several observational measurements for UDGs. In particular, no bias towards overly massive haloes is inferred from the study of bound GCs, confirming that GCs are good tracers of UDG halo mass. However, we find that contamination by intracluster GCs may, in some cases, substantially increase velocity dispersion estimates when performing projected mock observations of our sample. We caution that targets with less than 10 GC tracers are particularly prone to severe uncertainties. Measuring the stellar kinematics of the host galaxy should help confirm the unusually massive haloes suggested by GC kinematics around some UDGs
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