Publications by authors named "D E Hellman"

This field-scale study evaluates the seasonal effectiveness of employing nature-based solutions (NBSs), particularly surface flow and horizontal subsurface flow constructed wetland configurations, as tertiary treatment technologies for the removal of antibiotics (ABs) and antibiotic resistance genes (ARGs) compared to a conventional treatment involving UV and chlorination. Out of the 21 monitored ABs, 13 were detected in the influent of three tertiary wastewater treatments, with concentrations ranging from 2 to 1218 ng·L. The ARGs sul1 and dfrA1 exhibited concentrations ranging from 1 × 10 to 9 × 10 copies/100 mL.

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Article Synopsis
  • The study is a narrative review aimed at filling a gap in literature regarding return to play protocols and rehabilitation for golfers who have undergone lumbar spine surgery due to high-impact swings.
  • Research indicates that the forces exerted on the lumbar spine during modern golf swings are comparable to those in contact sports, highlighting the importance of swing mechanics and muscle conditioning.
  • The authors conclude that while lumbar spine surgery can help athletes return to play, there is still a lack of specific protocols for recovery, emphasizing the need for studies that link swing mechanics, rehabilitation, and surgical outcomes for golfers.
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Doctors have two ethical duties: to cure disease or ease suffering and, also, to do no harm. The ethical duty to "Do No Harm" has been used to justify two sides of a pendulum swing in the philosophy of opioid prescribing for pain. In the 1990s, it was invoked to expand prescribing, and more recently to justify dramatic reductions in prescription opioid use.

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Extreme urban heat is a powerful environmental stressor which poses a significant threat to human health and well-being. Exacerbated by the urban heat island phenomenon, heat events are expected to become more intense and frequent as climate change progresses, though we have limited understanding of the impact of such events on vulnerable populations at a neighborhood or census block group level. Focusing on the City of Portland, Oregon, this study aimed to determine which socio-demographic populations experience disproportionate exposure to extreme heat, as well as the level of access to refuge in the form of public cooling centers or residential central air conditioning.

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The associations of family, home visitor and site characteristics with family engagement within the first 6 months were examined. The variation in family engagement was also explored. Home visiting program participants were drawn from 21 Healthy Families America sites (1707 families) and 9 Nurse-Family Partnership sites (650 families) in New Jersey.

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