All posts in November 2024

These findings are notably different than a previous study in which perceptions of school safety, respect, and authoritative disciplinary style were each consistently predictive of beneficial social-emotional health outcomes including depression, stress, self-efficacy, grit, and hopelessness, which may hint at important differences between the determinants of these outcomes. There are several potential mechanisms for these findings…

Since the diacetyl/3-oxobutanal pair is slightly enhanced with VEA, this is in agreement with the fact that they are from different origins and both isomers are formed when VEA and THC are vaped together. In some cases, the mixture produced more carbonyl emissions compared to the pure compounds . Although this trend is less clear…

Details of the identification and quantification methods have been previously described in detail.40 Briefly, carbonyls are derivatized in-situ into hydrazones with 2, 4- dinitrophenylhydrazine cartridges and extracted with 2 mL acetonitrile prior to analysis. Consecutive sampling with three DNPH cartridges in series showed that >98.4% of carbonyls were captured in the first cartridge. Consecutive solvent extractions of DNPH cartridges…

Diacetyl is a chemical used as artificial flavor in candy, popcorn and other food items, while also used in e-liquids to provide a butter flavor. However, the inhalation of diacetyl may be associated with permanent lung damage like “popcorn lung” and trigger breathing problems, as well as wheezing or other forms of respiratory disease. Moreover, Khlystov…

For the full panel of tracts and years, I ran nested OLS models with the distance to the nearest garden as the dependent variable and independent variables of percent in poverty, median monthly housing costs, percent with a college degree, percent Black, percent Hispanic, percent Asian or Pacific Islander, and percent foreign born. I then…

In 2019 alone, MMSD spent $5 million from its capital budget on green infrastructure . In the last two decades, MMSD has supported garden improvement projects such as the installation of rainwater catchment and cisterns at numerous gardens in the city. In the process of restoring the Kinnickinnic River, MMSD has partnered with the Sixteenth…

The civic conventions in Philadelphia present a different context for legitimizing urban agriculture projects and mobilizing to protect threatened gardens. In Philadelphia, as evidenced by prior work and my interviews, cynicism about the local government runs high. There are fewer opportunities to seek public resources for resident-driven projects, and land is controlled by a complex…

Philadelphia Green was developed as a strategy to help the larger organization of PHS maintain its legitimacy as times were changing, interest in horticulture as a status-signal was on the decline, and urban problems were making their way into the consciousness of Philadelphia’s elite. Initiated in this context, the Philadelphia Green program increased PHS’s activity…

Food access inequalities are linked to disparities in the built environment and the legacy of urban racial segregation . Food insecurity in Black and Latinx communities is perpetuated by interpersonal discrimination and structural racism, through inequitable access to education, employment, housing, and credit . Over the last century, processes of institutional racism including segregation and…