Search

Across many language backgrounds, a consistent hurdle to accessing United States higher education is understanding the basic information necessary to apply for admission and financial aid and complete the many enrollment management processes necessary to begin one's college career (apply for housing, receive and submit vaccinations, register for classes, etc.). However, to date, no studies have explored how this type of higher education information can be simplified and translated into Arabic, one of the most widely spoken languages in the world and a linguistic background shared by tens of thousands of prospective international students (and their families) seeking higher education in the United States. This case study reports on research-to-practice work conducted with the University of Iowa, specifically how the university simplified their enrollment management information and how that information was translated into Arabic for native Arabic speakers seeking access to the University of Iowa. Findings reveal that the institution simplified text to speak more directly to prospective student audiences by using second person pronouns and simpler sentence structure and diction to engage this audience. Moreover, analyses of machine and human translations of English to Arabic suggest that human translation should be the preferred mechanism of translating higher education information, as Google Translate and ChatGPT provided adequate but not perfect translations of Iowa's information. Implications for practice and college access are addressed.

Early-career surgeons must be exposed to a sufficient number of surgical cases of varying complexity in a mentored environment to allow them to solidify, sustain and build on the skills gained in training. Decreased operative volumes at military treatment facilities and assignments that do not include strong mentoring environments can place military surgeons at a disadvantage relative to their civilian counterparts during this critical time following training. The challenge of lower operative volumes in the current interwar lull has been exacerbated by the decline in beneficiary care conducted within the Military Healthcare System. These challenges must be addressed by ensuring early-career surgeons maintain exposure to a large volume of complex surgical procedures and deliberate mentoring from senior surgeons. The purpose of this position statement is to provide actionable methods to support early-career military surgeons to effectively transition from training to independent practice.

The COVID-19 pandemic has created a plethora of problems globally for school boards, administrators, and teachers of science, technology, engineering, the arts, and mathematics (STEAM). From the beginning of 2020, marginalized students--those who live in low-socioeconomic environments or come from traditionally underrepresented communities or populations--have fallen further behind their non-marginalized counterparts, as the virus has exacerbated existing academic inequalities. This article presents how a top-down approach to creating a research-based curriculum can help middle and high school STEAM teachers create rigorous and flexible learning opportunities for marginalized students during a pandemic.

This review summarizes recent developments in radiocarbon tracer technology and applications. Technologies covered include accelerator mass spectrometry (AMS), including conversion of samples to graphite, and rapid combustion to carbon dioxide to enable direct liquid sample analysis, coupling to HPLC for real-time AMS analysis, and combined molecular mass spectrometry and AMS for analyte identification and quantitation. Laser-based alternatives, such as cavity ring down spectrometry, are emerging to enable lower cost, higher throughput measurements of biological samples. Applications covered include radiocarbon dating, use of environmental atomic bomb pulse radiocarbon content for cell and protein age determination and turnover studies, and carbon source identification. Low dose toxicology applications reviewed include studies of naphthalene-DNA adduct formation, benzo[a]pyrene pharmacokinetics in humans, and triclocarban exposure and risk assessment. Cancer-related studies covered include the use of radiocarbon-labeled cells for better defining mechanisms of metastasis and the use of drug-DNA adducts as predictive biomarkers of response to chemotherapy.

Introduction: Access to a full range of contraceptive services is essential for quality health care. Contraceptive provision practices of primary care providers play an important role in patients' decision-making about their reproductive health care. Understanding the multilevel factors influencing contraceptive care delivery in primary care settings is critical for advancing quality care. This study offers an in-depth examination of influences on providers' delivery of contraceptive services across multiple primary care specialties and practice settings to identify issues and strategies to improve care. Materials and Methods: Twenty-four in-depth face-to-face interviews were conducted in 2017 with primary care providers, including family physicians, gynecologists, pediatricians, and nurse practitioners from academic settings, private practices, and health centers. Interviews were transcribed and analyzed thematically. Results: Providers described a complex set of influences on their provision of contraception across multiple ecological contexts. Seven major themes emerged from the qualitative analysis, including six types of influence on provision of contraception: organizational, individual provider-related, structural and policy, individual patient-related, community, and the lack of influences or barriers. Providers also discussed the sources they access for information about evidence-based contraception counseling. Conclusions: A diverse set of providers described a complex system in which multiple concentric ecological contexts both positively and negatively influence the ways in which they provide contraceptive services to their patients. To close the gaps in contraceptive service delivery, it is important to recognize that both barriers and facilitators to patient-centered contraceptive counseling exist simultaneously across multiple ecological contexts.

Detection sensitivity is a critical characteristic to consider during selection of spectroscopic techniques. However, high sensitivity alone is insufficient for spectroscopic measurements in spectrally congested regions. Two-color cavity ringdown spectroscopy (2C-CRDS), based on intra-cavity pump-probe detection, simultaneously achieves high detection sensitivity and selectivity. This combination enables mid-infrared detection of radiocarbon dioxide (14CO2) molecules in room-temperature CO2 samples, with 1.4 parts-per-quadrillion (ppq, 10-15) sensitivity (average measurement precision) and 4.6-ppq quantitation accuracy (average calibrated measurement error for 21 samples from four separate trials) demonstrated on samples with 14C/C up to ~1.5× natural abundance (~1,800 ppq). These highly reproducible measurements, which are the most sensitive and quantitatively accurate in the mid-infrared, are accomplished despite the presence of orders-of-magnitude stronger, one-photon signals from other CO2 isotopologues. This is a major achievement in laser spectroscopy. A room-temperature-operated, compact, and low-cost 2C-CRDS sensor for 14CO2 benefits a wide range of scientific fields that utilize 14C for dating and isotope tracing, most notably atmospheric 14CO2 monitoring to track CO2 emissions from fossil fuels. The 2C-CRDS technique significantly enhances the general utility of high-resolution mid-infrared detection for analytical measurements and fundamental chemical dynamics studies. [ABSTRACT FROM AUTHOR]

Background: The use of Gastrografin (GG) in the management of adhesive small bowel obstruction (SBO) has been shown to decrease the length of stay and operative intervention. Methods: This retrospective cohort study examined patients with an SBO diagnosis prior to implementation (PRE, January 2017-January 2019) and following implementation (POST, January 2019-May 2021) of a GG challenge order set made available across 9 hospitals within a health care system. Primary outcomes were utilization of the order set across facilities and over time. Secondary outcomes included time to surgery for operative patients, rate of surgery, nonoperative length of stay, and 30-day readmission. Standard descriptive, univariate, and multivariable regression analyses were performed. Results: PRE cohort had 1746 patients and POST had 1889. The utilization of GG increased from 14% to 49.5% following implementation. Significant variability existed within the hospital system with utilization at each individual hospital from 11.5% to 60%. There was an increase in surgical intervention (13.9% vs 16.4%, P = .04) and decrease in nonoperative LOS (65.6 vs 59.9 hours, P < .001) following implementation. For POST patients, multivariable linear regression showed significant reduction in nonoperative length of stay (-23.1 hours, P < .001) but no significant difference in time to surgery (-19.6 hours, P = .08). Discussion: The availability of a standardized order set for SBO can result in increased Gastrografin administration across hospital settings. The implementation of a Gastrografin order set was associated with decreased length of stay in nonoperative patients. [ABSTRACT FROM AUTHOR]

We report a proof-of-principle demonstration of intracavity pump–probe, cavity ringdown (CRD) detection in a three-mirror, traveling-wave cavity. With cavity-enhanced pump power and probe absorption path length, the technique is a generally applicable, high-sensitivity, high-selectivity detection method. In our experiments, the pump radiation is switched off during every other probe ringdown, which allows uncorrelated measurements of analyte and background cavity decay rates. The net, two-color signal from the difference between the pump-on and pump-off decay rates is immune to empty-CRD drifts and spectral overlaps from non-target molecular transitions. The immunity to the ringdown drifts allows longer signal-averaging and, thus, higher detection sensitivity. The ability to compensate for the background absorption enhances the detection selectivity in spectrally congested regions. Our technique is well-suited for trace-detection in the mid-IR region, where pump–probe schemes based on strong rovibrational transitions can be applied. In this work, two-color CRD detection is implemented on a ladder-type, three-level system based on the N2O, ν3 = 1 ← 0, P(19) (pump) and ν3 = 2 ← 1, R(18) (probe), rovibrational transitions. By frequency-locking two-quantum cascade lasers to the p-polarization (pump, Finesse = 5280) and s-polarization (probe, Finesse = 67 700) cavity modes, we achieve high intracavity pump power (36 W) and high probe ringdown rates (>2 kHz). The observed two-color spectra are simulated by a density-matrix, three-level system model that is solved under the constraints of the cavity resonance conditions. In addition to its background compensation capability, experimental flexibility in the selection of pump–probe schemes and signal insensitivity to intracavity laser power are further features that enhance the utility of our technique for mid-IR trace-detection. [ABSTRACT FROM AUTHOR]

This review summarizes recent developments in radiocarbon tracer technology and applications. Technologies covered include accelerator mass spectrometry (AMS), including conversion of samples to graphite, and rapid combustion to carbon dioxide to enable direct liquid sample analysis, coupling to HPLC for real-time AMS analysis, and combined molecular mass spectrometry and AMS for analyte identification and quantitation. Laser-based alternatives, such as cavity ring down spectrometry, are emerging to enable lower cost, higher throughput measurements of biological samples. Applications covered include radiocarbon dating, use of environmental atomic bomb pulse radiocarbon content for cell and protein age determination and turnover studies, and carbon source identification. Low dose toxicology applications reviewed include studies of naphthalene-DNA adduct formation, benzo[a]pyrene pharmacokinetics in humans, and triclocarban exposure and risk assessment. Cancer-related studies covered include the use of radiocarbon-labeled cells for better defining mechanisms of metastasis and the use of drug-DNA adducts as predictive biomarkers of response to chemotherapy.