A Better Breath

Pollution and poor air quality can damage the health of people and their surrounding environments and are often tied to societal factors. This study collected spatial and temporal variability in air quality in the Greater Richmond Area to examine the connections between spatial patterns of pollution and demographic and economic variables. Air quality sensors were used to analyze the particulate matter as we examined the patterns in varying areas around the city and identified communities who were most vulnerable to these health concerns

Market Model: Estimation Problems and Its Uses With Special Reference to the Hospitality Industry

This paper examines the use of the market model for equity valuation within the hospitality sector. The model is analyzed in detail, including various errors related to beta estimation. Important caution points relevant to the use of market model in hospitality finance research are highlighted

Prospectus, September 30, 1974

NEW STUDENT SENATE NOW IN OFFICE; Reid, Heaton, Watkins Return, 7 More Elected; Bookstore Defended; Debate Tryouts; Start Gym Construction, Plan Use By Fall \u2775; New Students\u27 Rights Legislation In Effect; Nursing Sponsors Leukemia Workshop; New Nursing Methods Seminar Set for Oct. 9; can the canteen; letters To The Editor; The Short Circuit; bookstore alternatives; The Kaleidoscope; essay: women in advertising; Election Results; Hollenbach Passes Illini To Victory; Boilermakers Upset Fighting Irish 31-20; Jock Talk; Fast Freddy\u27s Football Forecast; A Column By And For Women; Classified Ads; Callboard; Parkland Events; Game Tourneys; Parkland Yearbook Under Revision; Fast Freddy Won By Kursthttps://spark.parkland.edu/prospectus_1974/1008/thumbnail.jp

Accumulation-depuration potential and natural occurrence of Microcystin-LR toxin in basil

Accumulation of hepatotoxic cyanobacterial toxins, like microcystin-LR (MC-LR), in edible crops through irrigation with contaminated water can result in human health&nbsp;risks. To assess the accumulation and depuration potential of MC-LR in basil under an optimized laboratory condition and to quantify its natural occurrence in basil samples collected from different markets in&nbsp;Belgium. Basil plants in hydroculture were exposed to 5, 10 or 50 µg L-1 MC-LR for 7 days. The depuration process was assessed by transferring plants to uncontaminated Hoagland solution &nbsp;for another 7 days. Moreover, 50 basil products were collected from the Belgian markets. Basil leaves (lab and market) and roots (lab only) were analyzed using a validated UHPLC-MS/MS-based method to quantify MC-LR. ELISA and HRLCMS-techniques were applied to verify MC-LR presence in accumulation and depuration samples.[A3]&nbsp; Concentration dependent accumulation of MC-LR was observed in both basil leaves and roots, reaching for the highest treatment condition up to 87.90 µg kg-1 and 143.80 µg kg-1, respectively. The basil roots accumulated more toxin compared to the leaves. Depuration was observed for all treatment conditions in both roots and leaves. At least six replicates were included and the whole experiment was repeated two times. These results were corroborated by both the ELISA and HRLCMS at the highest treatment condition. Moreover, MC-LR was detected below LOQ (1 µg kg-1) in one market&nbsp;sample. These results show the potential of basil to accumulate MC-LR from irrigation water, potentially resulting in human exposure to high levels of toxin. For the first time in Belgium, MC-LR was also detected in a vegetable from the market, showing human exposure through vegetables is already a&nbsp;reality.</p

Accumulation and depuration assessment of microcystin congeners in Basil grown on a hydroculture

AIM Accumulation of hepatotoxic microcystin congeners (MCs) in crops through irrigation with contaminated water can result in human health risks. MCs are produced by cyanobacteria, which can proliferate in various water bodies. These waterbodies could consequently be used for irrigation. Data on occurrence, accumulation and depuration of MCs are still lacking for many crops. The current study examines the accumulation and depuration of several MCs in basil as an example of a consumed plant in Belgium. MCs occurrence in basil was assessed by collecting samples from the Belgium market. MATERIAL AND METHODS Basil plants were grown in a hydroculture and exposed to 5, 10 or 50 µg/L MC-LR (the most prevalent microcystin congener worldwide) for 7 days. Afterward, plants were transferred for 7 days to uncontaminated Hoagland solution to assess the depuration process. An extra set of basil plants were exposed for 7 days to 5, 10 or 50 µg/L total MCs mixture (MC-LR, MC-YR and MC-RR) obtained from cyanobacterial culture. Basil leaves (lab and market) and roots (lab only) were analyzed using a validated UHPLC-MS/MS-based method.SP 21/5 CYANTIR 13. Good health and well-bein

How Can I Become a Responsible Subject? Towards a Practice-Based Ethics of Responsiveness

ethics of practice, giving account, limits of responsibility, responsiveness, subjectification,