Contraceptive Utilization Among New Exotic Dancers: A Cross-Sectional Study

Background Female exotic dancers are a population at high risk of unintended pregnancy. The objective of this study is to describe the reproductive health needs and contraceptive utilization of exotic dancers. Methods New exotic dancers (\u3c 6 months dancing) from 26 clubs in Baltimore City/County completed a one-time survey. Results Of 117 participants, 96 (82%) had current contraceptive need. The mean age was 24 years, and 55% were black. Sex work (45%), alcohol use disorder (73%), illicit (44%; e.g., heroin, crack, cocaine), and injection drug use (8%) were common. The majority (66%) reported contraception use in the prior 6 months. Condoms were reported by 46% whereas 45% reported non-barrier methods, most commonly hormonal injection. Consistent condom use was rare (3%), and only 11% used a long-acting reversible method. Conclusions Despite their unique reproductive health vulnerabilities, female exotic dancers have unmet contraceptive needs. Targeted harm reduction strategies are needed to fill this gap

A qualitative study of overdose responses among Chicago IDUs

This is an Open Access article distributed under the terms of the Creative Commons Attribution Licens

Interpersonal Violence and Contraceptive Method Use by Women Sex Workers

Objective More than one-half of women sex workers (sex workers) in the United States experience interpersonal violence, defined as physical or sexual violence, by sexual partners, including clients or intimate partners. Women experiencing interpersonal violence by intimate partners often choose hidden, woman-controlled contraception (e.g., intrauterine devices, pills, or sterilization) because fear of violence can impede condom negotiation. Yet, little is known about how interpersonal violence relates to contraception among sex workers who may have different sexual partner perpetrators (clients and intimate partners). The purpose of this study was to examine associations between interpersonal violence perpetrated by clients or intimate partners and contraceptive use. Study Design Data are from an observational, prospective cohort of sex workers, aged 18 to 49 in Baltimore, Maryland (N = 218). Bivariate and multivariable logistic regression were used to assess associations between lifetime interpersonal violence and past 3-month contraceptive use. The outcome was any woman-controlled contraceptive use versus partner-controlled or no contraception. Results Nearly all sex workers (96.5%) reported contraceptive use, with most using male condoms (69%), nearly one-half using woman-controlled methods (43%), and 25% using dual methods (e.g., condoms and a woman-controlled method). Lifetime experiences of interpersonal violence by clients (58%) and intimate partners (52%) were prevalent. Sex workers who experienced interpersonal violence by intimate partners had over twice the odds of woman-controlled contraceptive use (adjusted odds ratio, 2.48; 95% confidence interval, 1.36–4.54). Conclusions Findings highlight the importance of relationship context in the associations between interpersonal violence and use of woman-controlled contraceptive methods among sex workers, because only violence experiences by intimate partners were associated with increased odds of woman-controlled contraceptive method use

Risk factors associated with injection initiation among drug users in Northern Thailand

BACKGROUND: Circumstances surrounding injection initiation have not been well addressed in many developing country contexts. This study aimed to identify demographic factors, sexual behaviors and drug use characteristics related to injection initiation among drug users in northern Thailand. METHODS: A cross-sectional survey was conducted among 2,231 drug users admitted to the Northern Drug Treatment Center in Mae Rim, Chiang Mai, Thailand, between February 1, 1999 and December 31, 2000. A multiple logistic regression was employed to identify the independent effects from potential risk factors of transition into injection. RESULTS: After controlling for other covariates, being 20 years of age or older, single, ever receiving education, urban residence, and having a history of smoking or incarceration were significantly associated with higher likelihood of injection initiation. Multiple sex partners and an experience of sex abuse were associated with an increased risk of injection initiation. Comparing to those whose first drug was opium, individuals using heroin as their initiation drug had greater risk of injection initiation; conversely, those taking amphetamine as their first drug had less risk of injection initiation. Age of drug initiation was negatively associated with the risk of injection initiation: the older the age of drug initiation, the less the risk of injection initiation. CONCLUSION: Injection initiation was related to several demographic factors, sexual behaviors and drug use characteristics. Understanding these factors will benefit the design of approaches to successfully prevent or delay transition into injection

Geodynamic Evolution of a Forearc Rift in the Southernmost Mariana Arc

The southernmost Mariana forearc stretched to accommodate opening of the Mariana Trough backarc basin in late Neogene time, erupting basalts now exposed in the SE Mariana Forearc Rift (SEMFR) 3.7 – 2.7 Ma ago. Today, SEMFR is a broad zone of extension that formed on hydrated, forearc lithosphere and overlies the shallow subducting slab (slab depth ≤ 30 – 50 km). It comprises NW-SE trending subparallel deeps, 3 - 16 km wide, that can be traced ≥ ~ 30 km from the trench almost to the backarc spreading center, the Malaguana-Gadao Ridge (MGR). While forearcs are usually underlain by serpentinized harzburgites too cold to melt, SEMFR crust is mostly composed of Pliocene, low-K basaltic to basaltic andesite lavas that are compositionally similar to arc lavas and backarc basin (BAB) lavas, and thus defines a forearc region that recently witnessed abundant igneous activity in the form of seafloor spreading. SEMFR igneous rocks have low Na8, Ti8, and Fe8, consistent with extensive melting, at ~ 23 ± 6.6 km depth and 1239 ± 40oC, by adiabatic decompression of depleted asthenospheric mantle metasomatized by slab-derived fluids. Stretching of pre-existing forearc lithosphere allowed BAB-like mantle to flow along SEMFR and melt, forming new oceanic crust. Melts interacted with preexisting forearc lithosphere during ascent. SEMFR is no longer magmatically active and post-magmatic tectonic activity dominates the rift

Progressive regression of left ventricular hypertrophy two years after bariatric surgery.

BACKGROUND: Obesity is a systemic disorder associated with an increase in left ventricular mass and premature death and disability from cardiovascular disease. Although bariatric surgery reverses many of the hormonal and hemodynamic derangements, the long-term collective effects on body composition and left ventricular mass have not been considered before. We hypothesized that the decrease in fat mass and lean mass after weight loss surgery is associated with a decrease in left ventricular mass. METHODS: Fifteen severely obese women (mean body mass index [BMI]: 46.7+/-1.7 kg/m(2)) with medically controlled hypertension underwent bariatric surgery. Left ventricular mass and plasma markers of systemic metabolism, together with body mass index (BMI), waist and hip circumferences, body composition (fat mass and lean mass), and resting energy expenditure were measured at 0, 3, 9, 12, and 24 months. RESULTS: Left ventricular mass continued to decrease linearly over the entire period of observation, while rates of weight loss, loss of lean mass, loss of fat mass, and resting energy expenditure all plateaued at 9 [corrected] months (P \u3c.001 for all). Parameters of systemic metabolism normalized by 9 months, and showed no further change at 24 months after surgery. CONCLUSIONS: Even though parameters of obesity, including BMI and body composition, plateau, the benefits of bariatric surgery on systemic metabolism and left ventricular mass are sustained. We propose that the progressive decrease of left ventricular mass after weight loss surgery is regulated by neurohumoral factors, and may contribute to improved long-term survival

Self-affirmation improves music performance among performers high on the impulsivity dimension of sensation seeking

In the light of evidence that self-affirmation can mitigate the negative effects of stress on outcomes, this study tested whether a self-affirmation manipulation could improve undergraduate students’ achievement in a formal musical performance examination. The study also investigated the association between impulsivity and music performance and explored whether impulsivity moderated any impact of self-affirmation on exam performance. Methods: At baseline, participants provided demographic information and completed the UPPS-P Impulsive Behaviour Scale (short-form), which assesses five dimensions of impulsivity (negative and positive urgency, lack of premeditation, lack of perseverance, and sensation seeking). In the subsequent 14 days, participants (N = 65) completed either a self-affirmation manipulation or a control task, before reading a message about the impact of practice on music performance. Music performance was formally assessed 14 days later. Findings: Sensation seeking was the only dimension of impulsivity associated with exam performance, with participants high in sensation seeking receiving lower grades. Critically, self-affirmation promoted better music performance among those high in sensation seeking. Discussion: Self-affirmation may provide a useful intervention to augment the performance of musicians who would otherwise perform worse than their counterparts under formal evaluative circumstances, such as those high in sensation seeking

Identifying Critical Non-Catalytic Residues that Modulate Protein Kinase A Activity

Distal interactions between discrete elements of an enzyme are critical for communication and ultimately for regulation. However, identifying the components of such interactions has remained elusive due to the delicate nature of these contacts. Protein kinases are a prime example of an enzyme with multiple regulatory sites that are spatially separate, yet communicate extensively for tight regulation of activity. Kinase misregulation has been directly linked to a variety of cancers, underscoring the necessity for understanding intramolecular kinase regulation.A genetic screen was developed to identify suppressor mutations that restored catalytic activity in vivo from two kinase-dead Protein Kinase A mutants in S. cerevisiae. The residues defined by the suppressors provide new insights into kinase regulation. Many of the acquired mutations were distal to the nucleotide binding pocket, highlighting the relationship of spatially dispersed residues in regulation.The suppressor residues provide new insights into kinase regulation, including allosteric effects on catalytic elements and altered protein-protein interactions. The suppressor mutations identified in this study also share overlap with mutations identified from an identical screen in the yeast PKA homolog Tpk2, demonstrating functional conservation for some residues. Some mutations were independently isolated several times at the same sites. These sites are in agreement with sites previously identified from multiple cancer data sets as areas where acquired somatic mutations led to cancer progression and drug resistance. This method provides a valuable tool for identifying residues involved in kinase activity and for studying kinase misregulation in disease states

Hsp90 orchestrates transcriptional regulation by Hsf1 and cell wall remodelling by MAPK signalling during thermal adaptation in a pathogenic yeast

Acknowledgments We thank Rebecca Shapiro for creating CaLC1819, CaLC1855 and CaLC1875, Gillian Milne for help with EM, Aaron Mitchell for generously providing the transposon insertion mutant library, Jesus Pla for generously providing the hog1 hst7 mutant, and Cathy Collins for technical assistance.Peer reviewedPublisher PD