Environmental predictors of concentration at marine beaches in Vancouver, Canada: a Bayesian mixed-effects modelling analysis.

Understanding historical environmental determinants associated with the risk of elevated marine water contamination could enhance monitoring marine beaches in a Canadian setting, which can also inform predictive marine water quality models and ongoing climate change preparedness efforts. This study aimed to assess the combination of environmental factors that best predicts ( concentration at public beaches in Metro Vancouver, British Columbia, by combining the region's microbial water quality data and publicly available environmental data from 2013 to 2021. We developed a Bayesian log-normal mixed-effects regression model to evaluate predictors of geometric concentrations at 15 beaches in the Metro Vancouver Region.

Recreational water exposures and illness outcomes at a freshwater beach in Toronto, Canada: A prospective cohort pilot study.

Background: Swimming and other recreational water activities in surface waters are popular in Canada during the summer. However, these activities can also increase the risk of recreational water illness. While routine monitoring of beach water quality is conducted by local authorities each summer, little research is available in Canada about beach exposures and illness risks.

Promoting Healthy Food Access and Nutrition in Primary Care: A Systematic Scoping Review of Food Prescription Programs.

Objective: To conduct a scoping review to synthesize evidence on food prescription programs.

Data Source: A systematic search of PubMed, CINAHL, Web of Science, Embase, and the Cochrane Library was conducted using key words related to setting, interventions, and outcomes.

Study Inclusion And Exclusion Criteria: Publications were eligible if they reported food prescription administered by a health care practitioner (HCP) with the explicit aim of improving healthy food access and consumption, food security (FS), or health.

Region-Specific Associations between Environmental Factors and in Freshwater Beaches in Toronto and Niagara Region, Canada.

Poor freshwater beach quality, measured by () levels, poses a risk of recreational water illness. This study linked environmental data to geometric means collected at 18 beaches in Toronto (2008-2019) and the Niagara Region (2011-2019) to examine the environmental predictors of . We developed region-specific models using mixed effects models to examine as a continuous variable and recommended thresholds of concentration (100 CFU/100 mL and 200 CFU/100 mL).

Systematic review of predictive models of microbial water quality at freshwater recreational beaches.

Monitoring of fecal indicator bacteria at recreational waters is an important public health measure to minimize water-borne disease, however traditional culture methods for quantifying bacteria can take 18-24 hours to obtain a result. To support real-time notifications of water quality, models using environmental variables have been created to predict indicator bacteria levels on the day of sampling. We conducted a systematic review of predictive models of fecal indicator bacteria at freshwater recreational sites in temperate climates to identify and describe the existing approaches, trends, and their performance to inform beach water management policies.

"I was eating more fruits and veggies than I have in years": a mixed methods evaluation of a fresh food prescription intervention.

Background: Food insecurity is associated with poor nutritional health outcomes. Prescribing fresh fruits and vegetables in healthcare settings may be an opportunity to link patients with community supports to promote healthy diets and improve food security. This mixed methods study evaluated the impacts of a fresh food prescription pilot program.

Exploring the State of Gender-Centered Health Research in the Context of Refugee Resettlement in Canada: A Scoping Review.

Interdisciplinary health research that investigates gender as a relational process is necessary to facilitate a safe and healthy resettlement process for refugees in Canada. This scoping review explores the range, nature, and extent of published research examining gender in relation to refugee health during resettlement in Canada. An initial search of six databases yielded 7325 articles published before June 2019.

Kinetic mechanism and substrate specificity of nitroalkane oxidase.

Nitroalkane oxidase from Fusarium oxysporum catalyzes the oxidation of nitroalkanes to aldehydes, transferring the electrons to oxygen to form hydrogen peroxide. The steady-state kinetic patterns have been determined with nitroethane, 1-nitropropane, and 1-nitropentane as substrates. In all three cases, the data fit best to a ping pong kinetic mechanism.

Purification and characterization of the flavoprotein tryptophan 2-monooxygenase expressed at high levels in Escherichia coli.

Tryptophan 2-monooxygenase from Pseudomonas savastanoi is a flavoprotein which catalyzes the formation of indoleacetamide from tryptophan. This is the first step in a two-step pathway for the formation of indoleacetic acid during infection of plants and subsequent gall formation by this and other bacteria. The enzyme has been expressed in Escherichia coli at high levels, and a purification procedure has been developed which generates micromolar amounts of protein.