Publications by authors named "R O McCracken"
Article Synopsis
- The text addresses the need to examine the effects of rapidly adopting virtual primary care for individuals with opioid use disorder, particularly regarding therapy disruptions and service accessibility.
- The authors conducted a scoping review following established guidelines, analyzing data from various databases to understand the benefits, challenges, and strategies related to virtual care in this context.
- Out of 1,474 studies initially found, only 28 studies were included in the review after a rigorous screening process, with a significant majority conducted during or after the COVID-19 pandemic, highlighting a shift towards quantitative research methods during this time.
Purpose: Primary care access is a key health system metric, but little research has compared models to provide primary care access when one's regular physician is not available. We compared health system use after a visit with a patient's own family physician group (ie, within-group physician who was not the patient's primary physician) vs a visit with a walk-in clinic physician who was not part of the patient's family physician group.
Methods: We conducted a population-based, retrospective cohort study using administrative data from Ontario, Canada, including all individuals formally enrolled with a family physician, from April 1, 2019 to March 31, 2020.
We report the design and characterization of a femtosecond optical parametric oscillator containing an intracavity Herriott cell. Pumped by a 49.16-MHz Yb:fiber laser, the signal wavelength could be tuned over 1440-1530 nm, with the Herriott cell containing 81% of the free-space cavity length required for synchronous operation.
View Article and Find Full Text PDFHigh-resolution cross-dispersion spectrographs are widely used in spectroscopy, but the two-dimensional format of the spectrum requires sophisticated calibration, conventionally performed by illuminating the instrument with a broadband hollow-cathode lamp and cross-referencing the result to an emission-line atlas. Here, we introduce a new technique to completely calibrate a high-resolution echelle spectrograph using only a laser frequency comb. Selected individual comb lines are removed from a broadband 20 GHz laser frequency comb-revealing their exact location in the spectrograph echellogram-and wavelength-tagged with sub-fm accuracy.
View Article and Find Full Text PDFArticle Synopsis
- The study aimed to compare family physicians working in walk-in clinics with those providing long-term care in Ontario, focusing on their characteristics and patient demographics.
- The research linked a 2019 physician survey with health care data, revealing differences such as a higher percentage of male physicians and a diverse language background among walk-in clinic practitioners.
- Results showed that walk-in clinic physicians typically served younger, less frequently seeking patients, many of whom were from diverse backgrounds and often attached to other family physicians.