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Background: In the United States, Black and Hispanic/Latinx individuals continue to be disproportionately impacted by HIV. Applying a distributional cost-effectiveness framework, we estimated the distributional health impacts and cost-effectiveness of [...]

Microwave vacuum drying as compared to conventional vacuum drying has evinced advantages regarding drying time, while comparable product characteristics were achieved when drying sensitive biological material. Due to the volumetric microwave input, a time reduction of up to 90% is possible. When drying viscous liquids, a foamed structure that remains stable during drying exhibits further advantages as the diffusion‐limited third drying step is enhanced by the porous structure. As foams not only have to be thermally resistant during microwave vacuum processing, but also withstand the vacuum, a specific process for foam drying by microwaves under low pressure conditions was developed. Foam formation and stabilization was achieved by using a synergistic mixture of proteins and carbohydrates; Lactobacillus paracasei ssp. paracasei F19 (L. paracasei) served as a model sensitive substance. Investigation of surface activity and foaming properties as a function of L. paracasei concentration revealed a significant positive contribution of the bacterial cells. It was shown that L. paracasei directly adsorbed at the air–water interface. Besides, a structuring of the liquid lamellae was assumed. Moreover, drying time was reduced to at least 50% compared to microwave vacuum drying without foaming. It was further observed that the slight loss in survival was mainly due to the relatively high moisture content and high vacuum levels at the beginning of the process. However, foaming, vacuum application, and final drying, respectively, did not affect viability of the bacterial cells. Thus, by incorporation of lactic acid bacteria into foam structures, drying can be carried out in a fraction of time, and further results in high‐product quality. Practical Application: The application of continuous foam drying offers an efficient and energy‐saving alternative to the currently applied techniques for the processing of sensitive material. The process could be applied for the preservation of starter cultures and probiotics as well as in the pharmaceutical industry, when sensitive material such as therapeutic proteins is dried. This process is especially suitable for freezing‐sensitive and thermolabile substances. [ABSTRACT FROM AUTHOR]

Background:Solana® (Quidel) is a new rapid (<40 min.) point-of-care (POC) test for qualitative detection ofTrichomonas vaginalis(TV) DNA. The assay has two steps: 1) specimen preparation, and 2) amplification and detection using isothermal Helicase-Dependent Amplification (HDA). The objective was to demonstrate the performance of Solana for vaginal swabs and female urines based on comparison to wet mount and TV culture. Performance was also compared to the Aptima-TV assay. Methods:Urine and four clinician-collected vaginal swabs were collected. The first two were used for FDA composite reference (wet mount; InPouch TV Culture). The third swab was used for Solana. Sensitivity/specificity were based on the reference method. A specimen was considered positive if either test was positive. The fourth swab was for Aptima-TV. Results:Vaginal swabs and urines were obtained from 501 asymptomatic and 543 symptomatic women. Prevalence of TV by was 11.5%. For swabs, Solana® demonstrated high sensitivity and specificity from asymptomatic (100%/98.9%) and symptomatic (98.6%/98.5%) women, as well as for urines from asymptomatic (98.0%/98.4%) and symptomatic (92.9%/97.9%) women, compared to the reference method. Compared to Aptima-TV, the sensitivity/specificity was 89.7%/99.0% for swabs and 100%/98.9% for urines. Conclusion:The Solana® assay performed well compared to the reference assays. [ABSTRACT FROM PUBLISHER]

Through the use of protein-free milk serum (PFMS) in comparison with deionised water (DW) or deionised water with lactose (DWL), the respective impact of lactose and milk salts on surface activity and foaming properties of selected individual milk proteins and relevant milk protein mixtures was evaluated. Against expectation, the lactose-dependent increase in solution viscosity did not impede protein diffusion and surface adsorption. Instead of molecular flexibility, protein interaction potential (inherent or milk salt-induced) correlated with foamability. Lactose and milk salts contributed to increased foam stabilities, which was also reflected in time-dependent evolution of bubble sizes as well as reduced drainage exponents. Generally, maxima in foamability and foam stability resulted when PFMS was used, which indicates the significance of pronounced protein–protein interactions as well as high packing densities at the air/water interface. The main contribution of lactose to foam volume gain and stabilisation was attributed to the reduction of coalescence. [ABSTRACT FROM AUTHOR]

We investigate the spectral properties of a class of Jacobi matrices resulting from periodic pertubations of Jacobi operators with smooth coefficients. [ABSTRACT FROM AUTHOR]

Abstract Background Increased biotic and abiotic plant stresses due to climate change together with an expected global human population of over 9 billion by 2050 intensifies the demand for agricultural production on marginal lands. Soil salinity is one of the major abiotic stresses responsible for reduced crop productivity worldwide and the salinization of arable land has dramatically increased over the last few decades. Consequently, as land becomes less amenable for conventional agriculture, plants grown on marginal soils will be exposed to higher levels of soil salinity. Forage grasses are a critical component of feed used in livestock production worldwide, with many of these same species of grasses being utilized for lawns, erosion prevention, and recreation. Consequently, it is important to develop a better understanding of salt tolerance in forage and related grass species. Findings A gene encoding a ZnF protein was identified during the analysis of a salt-stress suppression subtractive hybridization (SSH) expression library from the forage grass species Festuca arundinacea. The expression pattern of FaZnF was compared to that of the well characterized gene for delta 1-pyrroline-5-carboxylate synthetase (P5CS), a key enzyme in proline biosynthesis, which was also identified in the salt-stress SSH library. The FaZnF and P5CS genes were both up-regulated in response to salt and drought stresses suggesting a role in dehydration stress. FaZnF was also up-regulated in response to heat and wounding, suggesting that it might have a more general function in multiple abiotic stress responses. Additionally, potential downstream targets of FaZnF (a MAPK [Mitogen-Activated Protein Kinase], GST [Glutathione-S-Transferase] and lipoxygenase L2) were found to be up-regulated in calli overexpressing FaZnF when compared to control cell lines. Conclusions This work provides evidence that FaZnF is an AN1/A20 zinc finger protein that is involved in the regulation of at least two pathways initiated by the salt stress response, thus furthering our understanding of the mechanisms of cellular action during a stress that is applicable to commercial crops worldwide.

Abstract Background Choke, caused by the endophytic fungus Epichloë typhina, is an important disease affecting orchardgrass (Dactylis glomerata L.) seed production in the Willamette Valley. Little is known concerning the conditions necessary for successful infection of orchardgrass by E. typhina. Detection of E. typhina in plants early in the disease cycle can be difficult due to the sparse distribution of hyphae in the plant. Therefore, a sensitive method to detect fungal infection in plants would provide an invaluable tool for elucidating the conditions for establishment of infection in orchardgrass. Utilization of a marker gene, such as the green fluorescent protein (GFP), transformed into Epichloë will facilitate characterization of the initial stages of infection and establishment of the fungus in plants. Findings We have developed a rapid, efficient, and reproducible transformation method using electroporation of germinating Epichloë conidia isolated from infected plants. Conclusions The GFP labelled E. typhina provides a valuable molecular tool to researchers studying conditions and mechanisms involved in the establishment of choke disease in orchardgrass.

(1) Background: This study aimed to quantify and evaluate the publication rate and discrepancies of functional urology abstracts from international conferences, and to explore the interdisciplinary contributions of urology and gynecology to the field. (2) Methods: A retrospective bibliometric and content analysis was conducted on abstracts presented between 2015 and 2019 at the EAU and ICS congresses, focusing on functional-urological keywords. A discrepancy scoring system ranging from 0 (minor discrepancies) to 3 (significant discrepancies) assessed the consistency between conference abstracts and full-text publications, and an in-depth analysis determined the disciplinary origin of these publications. (3) Results: Between 2015 and 2019, 53% of EAU and 57% of ICS congress abstracts were published as full-text articles, with minor discrepancies in 38% of EAU and 49% of ICS publications, and significant discrepancies in 17% from both. Urology departments dominated publications, contributing 68% at EAU and 55% at ICS, whereas gynecology contributed only 1% at EAU and 12% at ICS. (4) Conclusions: This study illuminates the need for improved reporting standards and interdisciplinary collaboration in functional urology, as well as increased gynecology research in functional urology-related fields, suggesting that addressing these issues is crucial for advancing the field and enhancing patient care.

Objective: Gaps in gender-based equity persist in academic otolaryngology. Here we present a needs-based assessment of otolaryngology faculty and trainees regarding facilitators and barriers to professional satisfaction and career development in academic medicine., Methods: A qualitative study of otolaryngology faculty, trainees, and administrators who identify as women at an academic tertiary care center was performed from 2020 to 2021 using focus groups and semi-structured interviews. Five confidential, virtual focus group sessions moderated by a third-party executive coach were audio-taped, transcribed, and reviewed for thematic content., Results: Of 48 women invited, 77% participated (18 faculty/administrative leaders, 10 residents/fellows, 4 audiologists). Participants noted direct patient care, support from colleagues who identify as women, and the transition to virtual meetings as facilitators of current professional satisfaction. Five themes emerged as barriers to workplace satisfaction and career development including (1) limited professional schedule flexibility, (2) competing commitments such as childcare exacerbated by pandemic, (3) lack of visible departmental leadership who identify as women, (4) perceived lack of organic sponsorship within subspecialty divisions, and (5) frequent identity-associated microaggressions from patients and staff outside the department. Strategies identified for improving gender-based equity included (1) promoting department-wide awareness of workplace gender-based differences, (2) implicit bias training within established programming such as grand rounds conferences, and (3) novel faculty programming such as leadership development training and formal junior faculty mentorship., Conclusion: Confidential needs-based assessment of otolaryngology faculty and trainees identified both persistent gaps and strategies to enhance recruitment, support career development, and grow professional satisfaction of women within academic otolaryngology., Level of Evidence: 3., Competing Interests: The authors declare no conflicts of interest., (© 2024 The Authors. Laryngoscope Investigative Otolaryngology published by Wiley Periodicals LLC on behalf of The Triological Society.)

Introduction: First-line systemic therapy (ST) options for advanced hepatocellular carcinoma (HCC) include tyrosine kinase inhibitors and immunotherapy (IO). Evolving data suggest prolonged overall survival (OS) when ST is combined with stereotactic body radiation therapy (SBRT), although evidence is significantly limited in HCC populations. We hypothesized that advanced HCC patients in the National Cancer Database (NCDB) would have improved OS when receiving ST+SBRT vs ST alone., Methods: Stage III/IV HCC patients diagnosed from 2010-2020 and treated with first-line ST±SBRT were identified from the NCDB. The primary endpoint was OS from date of diagnosis stratified by the receipt of SBRT (ST+SBRT vs ST alone). Survival was estimated using Kaplan-Meier methodology and compared via log-rank. Multivariate analysis (MVA) was performed by Cox regression., Results: Of 10,505 eligible patients with stage III disease, 115 (1.1%) received ST+SBRT and 10,390 (98.9%) received ST alone. Of 9,617 eligible patients with stage IV disease, 127 (1.3%) received ST+SBRT and 9,490 (98.7%) received ST alone. Median follow-up time was 6.8 months. Baseline characteristics were similar between cohorts. Patients with stage III disease receiving ST+SBRT had improved median OS (12.62 months vs 8.38 months) and higher rates of survival at 1-year (53.0% vs 38.7%) and 2-years (27.0% vs 20.7%) compared to those receiving ST alone (log-rank P =0.0054). Similarly, patients with stage IV disease receiving ST+SBRT had improved median OS (11.79 months vs 5.72 months) and higher rates of survival at 1-year (49.6% vs 26.2%) and 2-years (23.6% vs 12.0%) (log-rank P <0.0001). On MVA, receipt of SBRT predicted improved OS (HR=0.748, 95%CI 0.588-0.951; P =0.0178) and receipt of IO trended towards improved OS (HR=0.859, 95%CI 0.735-1.003; P =0.0538)., Conclusion: In advanced HCC, patients receiving ST+SBRT had improved OS compared to those receiving ST alone. Prospective clinical trials are warranted to better identify HCC populations which may benefit from combined modality therapy., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Piening, Swaminath, Dombrowski, Teague, Al-Hammadi and Shahi.)

Purpose: Immunotherapy (IO) has significantly improved outcomes in metastatic renal cell carcinoma (mRCC). Preclinical evidence suggests that responses to IO may be potentiated via immunomodulatory effects of stereotactic radiation therapy (SRT). We hypothesized that clinical outcomes from the National Cancer Database (NCDB) would demonstrate improved overall survival (OS) in patients with mRCC receiving IO + SRT versus IO alone., Methods and Materials: Patients with mRCC receiving first-line IO ± SRT were identified from the NCDB. Conventional radiation therapy was allowed in the IO alone cohort. The primary endpoint was OS stratified by the receipt of SRT (IO + SRT vs IO alone). Secondary endpoints included OS stratified by the presence of brain metastases (BM) and timing of SRT (before or after IO). Survival was estimated using Kaplan-Meier methodology and compared via the log-rank test., Results: Of 644 eligible patients, 63 (9.8%) received IO + SRT, and 581 (90.2%) received IO alone. Median follow-up time was 17.7 months (range, 2-24 months). Sites treated with SRT included the brain (71.4%), lung/chest (7.9%), bones (7.9%), spine (6.3%), and other (6.3%). OS was 74.4% versus 65.0% at 1 year and 71.0% versus 59.4% at 2 years for the IO + SRT and IO alone groups, respectively, although this difference did not reach statistical significance (log-rank P  = .1077). In patients with BM, however, 1-year OS (73.0% vs 54.7%) and 2-year OS (70.8% vs 51.4%) was significantly higher in those receiving IO + SRT versus IO alone, respectively (pairwise P  = .0261). Timing of SRT (before or after IO) did not influence OS (log-rank P  = .3185)., Conclusions: Patients with BM secondary to mRCC had prolonged OS with the addition of SRT to IO. Factors such as International mRCC Database Consortium risk stratification, oligometastatic tumor burden, SRT dose/fractionation, and utilization of doublet therapy should be considered in future analyses to better identify patients who may benefit from combined IO + SRT. Further prospective studies are warranted., (© 2023 The Authors.)

Background: Major depressive disorder (MDD) is a highly burdensome health condition, for which there are numerous accepted pharmacological and psychological interventions. Adjunctive treatment (augmentation/combination) is recommended for the ~50% of MDD patients who do not adequately respond to first-line treatment. We aimed to evaluate the current evidence for concomitant approaches for people with early-stage treatment-resistant depression (TRD; defined below)., Methods: We systematically searched Medline and Institute for Scientific Information Web of Science to identify randomised controlled trials of adjunctive treatment of ⩾10 adults with MDD who had not responded to ⩾1 adequate antidepressant. The cochrane risk of bias (RoB) tool was used to assess study quality. Pre-post treatment meta-analyses were performed, allowing for comparison across heterogeneous study designs independent of comparator interventions., Results: In total, 115 trials investigating 48 treatments were synthesised. The mean intervention duration was 9 weeks (range 5 days to 18 months) with most studies assessed to have low ( n  = 57) or moderate ( n  = 51) RoB. The highest effect sizes (ESs) were from cognitive behavioural therapy (ES = 1.58, 95% confidence interval (CI): 1.09-2.07), (es)ketamine (ES = 1.48, 95% CI: 1.23-1.73) and risperidone (ES = 1.42, 95% CI: 1.29-1.61). Only aripiprazole and lithium were examined in ⩾10 studies. Pill placebo (ES = 0.89, 95% CI: 0.81-0.98) had a not inconsiderable ES, and only six treatments' 95% CIs did not overlap with pill placebo's (aripiprazole, (es)ketamine, mirtazapine, olanzapine, quetiapine and risperidone). We report marked heterogeneity between studies for almost all analyses., Conclusions: Our findings support cautious optimism for several augmentation strategies; although considering the high prevalence of TRD, evidence remains inadequate for each treatment option.

Background: Despite rising rates of syphilis among people with human immunodeficiency virus (HIV; PWH) in the United States, there is no optimal syphilis screening frequency or prioritization., Methods: We reviewed records of all PWH in care between 1 January 2014 and 16 November 2018 from 4 sites in the Centers for AIDS Research Network of Integrated Clinical Systems Cohort (CNICS; N = 8455). We calculated rates of syphilis testing and incident syphilis and used Cox proportional hazards models modified for recurrent events to examine demographic and clinical predictors of testing and diagnosis., Results: Participants contributed 29 568 person-years of follow-up. The rate of syphilis testing was 118 tests per 100 person-years (95% confidence interval [CI]: 117-119). The rate of incident syphilis was 4.7 cases per 100 person-years (95% CI: 4.5-5.0). Syphilis diagnosis rates were highest among younger cisgender men who have sex with men and transgender women, Hispanic individuals, people who inject drugs, and those with detectable HIV RNA, rectal infections, and hepatitis C., Conclusions: We identified PWH who may benefit from more frequent syphilis testing and interventions for syphilis prevention., Competing Interests: Potential conflicts of interest. K. C. reports investigator-initiated grant support from Gilead Sciences and serving on Gilead Sciences Medical Advisory Board, outside the submitted work. J. D. reports consulting fees from National Association of State and Territorial AIDS Directors and payment or honoraria for lectures, presentations, speaker’s bureaus, manuscript writing, or educational events from Planned Parenthood Federation of America, outside the submitted work. E. C. reports unrelated research grants, funding paid to UC Regents, from Merck Sharp and Dohme and Gilead Science, outside the submitted work. H. M. C. reports funding from the National Institutes of Health (NIH), the Agency for Healthcare Research and Quality, and ViiV and participation on the NIH Office of AIDS Research Advisory Council, outside the submitted work. All other authors report no potential conflicts. All authors have submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Conflicts that the editors consider relevant to the content of the manuscript have been disclosed., (© The Author(s) 2021. Published by Oxford University Press for the Infectious Diseases Society of America. All rights reserved. For permissions, e-mail: journals.permissions@oup.com.)

Background: Preexposure prophylaxis (PrEP) discontinuations are common and are associated with subsequent HIV acquisition. The population-level impact of PrEP discontinuations is unknown., Methods: Public health staff routinely asked men who have sex with men (MSM) with newly diagnosed HIV infection about their history of PrEP use as part of partner notification interviews in King County, WA, from 2013 to 2021. We assessed trends in the proportion of MSM who ever took PrEP and described reasons for PrEP discontinuation., Results: A total of 1098 MSM were newly diagnosed with HIV during the study period; of whom, 797 (73%) were interviewed, and 722 responded to questions about their history of PrEP use. Ninety-four (13%) reported ever taking PrEP. The proportion of MSM who ever used PrEP before HIV diagnosis increased from 2.3% in 2014 to 26.6% in 2020-2021 ( P < 0.001 for trend). The median time from PrEP discontinuation to HIV diagnosis was 152 days, and median duration on PrEP was 214 days. Common reasons for stopping PrEP included self-assessment as being at low risk for HIV, side effects, and insurance issues. Nineteen men were on PrEP at the time of HIV diagnosis; mutations conferring emtricitabine/tenofovir resistance were identified in 8 (53%) of 15 men with available genotype data., Conclusion: More than 25% of MSM with newly diagnosed HIV from 2020 to 2021 had ever used PrEP. More than 50% who discontinued PrEP were diagnosed <6 months after stopping. Strategies to preempt PrEP discontinuations, enhance retention, and facilitate resumption of PrEP are critical to decrease new HIV diagnoses., (Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.)

Background: Data on contraceptive use among women with bacterial sexually transmitted infections (STIs) are sparse, despite this population's high risk for unplanned pregnancy., Methods: This cross-sectional study included 1623 cisgender women recently diagnosed with a bacterial STI who completed a public health Partner Services interview between January 2017 and December 2019 in King County, WA, USA. Contraceptive methods were categorized as: (1) highly or moderately effective and (2) least effective or no method. Poisson regression models were used to assess associations between individual characteristics and contraceptive method., Results: Almost two thirds of the women (62.6%) reported using highly or moderately effective contraception, with 30.3% of women using long-acting contraception (LARC). More than one in three women (37.4%) reported using least effective methods or no method. Black women were less likely to report using a highly or moderately effective method compared to White women (aRR 0.58, 95% CI 0.43-0.80) and women with private insurance were more likely to report using a highly or moderately effective method compared to those with public insurance (aRR 1.67, 95% CI 1.28-2.19)., Conclusions: Given that many women with bacterial STIs are not desiring pregnancy, this study highlights the need for additional reproductive health services for women with recent STI diagnoses.

Background: The incidence of Neisseria gonorrhoeae (GC) and Chlamydia trachomatis (CT) is increasing in the United States; however, there are limited data on anatomic site-specific GC/CT among people with HIV (PWH)., Methods: We reviewed records of all PWH in care between January 1, 2014, and November 16, 2018, at 4 sites in the CFAR Network of Integrated Clinical Systems Cohort (CNICS; n = 8455). We calculated anatomic site-specific GC/CT testing and incidence rates and used Cox proportional hazards models modified for recurrent events to examine sociodemographic and clinical predictors of GC/CT testing and incidence at urogenital, rectal, and pharyngeal sites. We also calculated site-specific number needed to test (NNT) to detect a positive GC/CT test., Results: Of 8455 PWH, 2460 (29.1%) had at least yearly GC/CT testing at any anatomic site. The rates of urogenital, rectal, and pharyngeal GC were 1.7 (95% CI, 1.6-1.9), 3.2 (95% CI, 3.0-3.5), and 2.7 (95% CI, 2.5-2.9) infections per 100 person-years, respectively. The rates of urogenital, rectal, and pharyngeal CT were 1.9 (95% CI, 1.7-2.1), 4.3 (95% CI, 4.0-4.5), and 0.9 (95% CI, 0.8-1.0) infections per 100 person-years, respectively. PWH 16-39 years old experienced greater GC/CT rates at all anatomic sites, while men who have sex with men experienced greater rates of extragenital infections. NNTs for urogenital, rectal, and pharyngeal GC/CT were 20 (95% CI, 19-21), 5 (95% CI, 5-5), and 9 (95% CI, 8-9), respectively., Conclusions: Many PWH are not tested annually for GC/CT, and rates of GC/CT infection, particularly rates of extragenital infections, are high. We identified groups of PWH who may benefit from increased site-specific GC/CT testing., (© The Author(s) 2022. Published by Oxford University Press on behalf of Infectious Diseases Society of America.)

Sex inequity in academic achievement was well documented before the COVID-19 pandemic, and evolving data suggest that women in academic surgery are disproportionately disadvantaged by the pandemic. This perspective piece reviews currently accepted solutions to the sex achievement gap, with their associated shortcomings. We also propose innovative strategies to overcoming barriers to sex equity in academic medicine that broadly fall into three categories: strategies to mitigate inequitable caregiving responsibilities, strategies to reduce cognitive load, and strategies to value uncompensated, impactful work. These approaches address inequities at the system-level, as opposed to the individual-level, lifting the burden of changing the system from women., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.)

The structure, chemistry, and charge of interfaces between materials and aqueous fluids play a central role in determining properties and performance of numerous water systems. Sensors, membranes, sorbents, and heterogeneous catalysts almost uniformly rely on specific interactions between their surfaces and components dissolved or suspended in the water-and often the water molecules themselves-to detect and mitigate contaminants. Deleterious processes in these systems such as fouling, scaling (inorganic deposits), and corrosion are also governed by interfacial phenomena. Despite the importance of these interfaces, much remains to be learned about their multiscale interactions. Developing a deeper understanding of the molecular- and mesoscale phenomena at water/solid interfaces will be essential to driving innovation to address grand challenges in supplying sufficient fit-for-purpose water in the future. In this Review, we examine the current state of knowledge surrounding adsorption, reactivity, and transport in several key classes of water/solid interfaces, drawing on a synergistic combination of theory, simulation, and experiments, and provide an outlook for prioritizing strategic research directions.

Background: The "surgical personality" is a mostly negative academic and cultural image of the surgeon as egotistical, paternalistic, and inflexible. Because of this image, surgeons have been viewed as resistant to change and some behaviors, vulnerability, for example, are viewed as "suspect" because they seemingly threaten professional competency. We report on exit interviews of surgeons who participated in a coaching program and demonstrate how their narratives challenge the surgical "personality" and forge an evolving and more open professional surgical identity., Methods: We interviewed n = 34 bariatric surgeons at the end of a 2-year surgical coaching program. Transcribed interviews were analyzed in NVivo, computer-assisted qualitative data analysis software. Coding of transcripts was approached through iterative steps. We utilized an exploratory method; each member of our team independently examined 3 transcripts to evaluate emergent themes early in the investigation. The team met to discuss our independent themes and develop the codebook collectively. We created a descriptive framework for our first round of coding based on emerging themes and employed an interpretive framework to arrive at our themes., Results: Three major themes emerged from our data. Participants in this study discussed the ways that participation in the coaching program initially conflicted with their identity as a competent professional. Surgeons were acutely aware of how participation might have destabilized their surgical identity because they might be viewed as vulnerable. Despite these concerns about image, surgeons found impetus for improvement because of poor outcome scores or because they desired early career affirmation. Finally, surgeons report that the safe spaces of intentional coaching contributed to their ideas about how surgeons, and ultimately surgery, can change., Conclusions: Participation in a coaching program challenged how surgeons thought of themselves in relationship to social and peer expectations. Our results indicate that surgeons do feel peer and social pressures related to identity but are much more complex and nuanced than has been previously discussed. The safe space of intentional coaching allowed participants to practice vulnerability without the pressures of sometimes caustic professional norms. Participants in this study viewed coaching as the way to improve the culture of surgery., Competing Interests: The authors report no conflicts of interest., (Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.)

It is widely accepted that protein-based particles can efficiently stabilize foams and emulsions. However, it is not fully elucidated which particle properties are decisive for the stabilization of air/water and oil/water interfaces. To unravel this correlation, selected properties of nano-sized soluble β-lactoglobulin particles were changed one at a time. Therefore, particles of (1) variable size but similar zeta potential and degree of cross-linking and (2) similar size but different further properties were produced by heat treatment under a specific combination of pH value and NaCl concentration and then analyzed for their interfacial behavior as well as foaming and emulsifying properties. On the one hand, it was found that the initial phase of protein adsorption at both the air/water and the oil/water interface was mainly influenced by the zeta potential, independent of the particle size. On the other hand, foam stability as resolved from the time-dependent evolution of mean bubble area negatively correlated with disulfide cross-linking, whereas emulsion stability in terms of oil droplet flocculation showed a positive correlation with disulfide cross-linking. In addition, flocculation was more pronounced for larger particles. Concluding from this, foam and emulsion stability are not linked to the same particle properties and, thus, explanatory approaches cannot be used interchangeably.

Objective: The purpose of this study was to measure the efficacy of a novel faculty and resident educational bundle focused on development of faculty-resident behaviors and entrustment in the operating room., Summary Background Data: As surgical training environments are orienting to entrustable professional activities (EPAs), successful transitions to this model will require significant faculty and resident development. Identifying an effective educational initiative which prepares faculty and residents for optimizing assessment, teaching, learning, and interacting in this model is critical., Methods: From September 2015 to June 2017, an experimental study was conducted in the Department of Surgery at the University of Michigan Health System (UMHS). Case observations took place across general, plastic, thoracic, and vascular surgical specialties. A total of 117 operating room observations were conducted during Phase I of the study and 108 operating room observations were conducted during Phase II following the educational intervention. Entrustment behaviors were rated for 56 faculty and 73 resident participants using OpTrust, a validated intraoperative entrustment instrument., Results: Multiple regression analysis showed a significant increase in faculty entrustment (Phase I = 2.32 vs Phase II = 2.56, P < 0.027) and resident entrustability (Phase I = 2.16 vs Phase II = 2.40, P < 0.029) scores following exposure to the educational intervention., Conclusions: Our study shows improved intraoperative entrustment following implementation of faculty and resident development, indicating the efficacy of this innovative educational bundle. This represents a crucial component in the implementation of a competency-based assessment framework like EPAs., Competing Interests: The authors report no conflicts of interest., (Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.)

This study aimed at examining the cause of differences in the structure preservation of polysorbate 80-maltodextrin foams during microwave-assisted vacuum drying (MWVD) versus conventional vacuum drying (CVD). Aqueous dispersions of 3% polysorbate 80 and 0-40% maltodextrin were characterized for their dielectric and interfacial properties, and results were related to their drying performance in a foamed state. Surface tension and surface dilatational properties as well as dielectric properties clearly responded to the variation in the maltodextrin content. Likewise, the foam structure preservation during CVD was linked to the maltodextrin concentration. Regarding MWVD, however, foams collapsed at all conditions tested. Nevertheless, if the structure during MWVD remained stable, the drying time was significantly reduced. Eventually, this finding could be linked to the dielectric properties of polysorbate 80 rather than its adsorption kinetics and surface film viscoelasticity as its resonant frequency fell within the working frequency of the microwave drying plant.

Background: Genital herpes simplex virus type 1 (HSV-1) has emerged as the leading cause of first-episode genital herpes among specific populations in the United States, such as adolescents, young adult women, and men who have sex with men (MSM). We examined trends in the etiology of first-episode genital herpes diagnoses over time in a sexually transmitted disease (STD) clinic population., Methods: Using an electronic database, we identified persons diagnosed as having first-episode genital herpes at Public Health - Seattle & King County STD Clinic from 1993 to 2014 and compared risk factors for genital HSV-1 versus herpes simplex virus type 2 (HSV-2) infection., Results: Of 52,030 patients with genital ulcers, 3065 (6.15%) had first-episode genital herpes infection: 1022 (33.3%) with HSV-1 and 2043 (67.7%) with HSV-2. Overall, 1154 (37.7%) were women, the median age was 28 years (interquartile range, 24-36 years), 1875 (61.2%) patients were white, and 353 (11.5%) were MSM. The number of patients diagnosed as having first-episode genital HSV-2 declined on average by 5.5 persons per year, from 208 in 1993 to 35 in 2014 (change of -5.6 per year; 95% confidence interval [CI], -6.9 to -4.1), whereas HSV-1 diagnoses remained stable at approximately 50 per year (change of 0.2; 95% CI, -0.4 to 0.9). In a multivariate model, persons diagnosed as having first-episode genital HSV-1 rather than genital HSV-2 infection were more likely to be younger (age <30 years [relative risk {RR}, 1.38; 95% CI, 1.22-1.55]), white (RR, 3.16; 95% CI, 2.57-3.88), and MSM (RR, 1.50; 95% CI, 1.31-1.71)., Conclusions: We observed a significant decrease in the frequency of first-episode genital HSV-2 and a stable number of first-episode genital HSV-1 infections in a STD clinic over the last 2 decades.

Background: Dynamic HIV transmission models can provide evidence-based guidance on optimal combination implementation strategies to treat and prevent HIV/AIDS. However, these models can be extremely data intensive, and the availability of good-quality data characterizing regional microepidemics varies substantially within and across countries. We aim to provide a comprehensive and transparent description of an evidence synthesis process and reporting framework employed to populate and calibrate a dynamic, compartmental HIV transmission model for six US cities., Methods: We executed a mixed-method evidence synthesis strategy to populate model parameters in six categories: (i) initial HIV-negative and HIV-infected populations; (ii) parameters used to calculate the probability of HIV transmission; (iii) screening, diagnosis, treatment and HIV disease progression; (iv) HIV prevention programs; (v) the costs of medical care; and (vi) health utility weights for each stage of HIV disease progression. We identified parameters that required city-specific data and stratification by gender, risk group and race/ethnicity a priori and sought out databases for primary analysis to augment our evidence synthesis. We ranked the quality of each parameter using context- and domain-specific criteria and verified sources and assumptions with our scientific advisory committee., Findings: To inform the 1,667 parameters needed to populate our model, we synthesized evidence from 59 peer-reviewed publications and 24 public health and surveillance reports and executed primary analyses using 11 data sets. Of these 1,667 parameters, 1,517 (91%) were city-specific and 150 (9%) were common for all cities. Notably, 1,074 (64%), 201 (12%) and 312 (19%) parameters corresponded to categories (i), (ii) and (iii), respectively. Parameters ranked as best- to moderate-quality evidence comprised 39% of the common parameters and ranged from 56%-60% across cities for the city-specific parameters. We identified variation in parameter values across cities as well as within cities across risk and race/ethnic groups., Conclusions: Better integration of modelling in decision making can be achieved by systematically reporting on the evidence synthesis process that is used to populate models, and by explicitly assessing the quality of data entered into the model. The effective communication of this process can help prioritize data collection of the most informative components of local HIV prevention and care services in order to reduce decision uncertainty and strengthen model conclusions., Competing Interests: The authors have declared that no competing interests exist.