Effectiveness of ozone nanobubble treatments on high biomass cyanobacterial blooms: A mesocosm experiment and field trial.

Cyanobacterial harmful algae blooms (cyanoHABs) are a global threat to water resources, and lake managers need effective strategies to suppress or control them. Algaecides may have negative environmental impacts, and their use is becoming restricted. Nanobubble ozone technology (NBOT) is an emerging water treatment option with potentially fewer negative impacts.

Notification, Viewing the Body, and Social and Cultural Considerations After Traumatic Death: A Systematic Literature Review.

We conducted a systematic review of the medical, nursing, forensic, and social science literature describing events and processes associated with what happens after a traumatic death in the socio-cultural context of largely Western and high-income societies. These include death notification, why survivors choose to view or not view the body, forensic practices affecting viewing the body, alternatives to viewing, and social and cultural practices following the death. We also describe how elements of these processes may act to increase or lessen some of the negative cognitive and emotional consequences for both survivors and providers.

Types of COVID-19 Disaster Work and Psychological Responses in National Guard Service Members.

Introduction: The National Guard (NG) served as a critical component of the U.S. response to the coronavirus disease 2019 pandemic.

Spatial and Temporal Variability of Saxitoxin-Producing Cyanobacteria in U.S. Urban Lakes.

Harmful cyanobacterial blooms (HCBs) are of growing global concern due to their production of toxic compounds, which threaten ecosystems and human health. Saxitoxins (STXs), commonly known as paralytic shellfish poison, are a neurotoxic alkaloid produced by some cyanobacteria. Although many field studies indicate a widespread distribution of STX, it is understudied relative to other cyanotoxins such as microcystins (MCs).

National Guard Deployment in Support of COVID-19: Psychological and Behavioral Health.

Introduction: The National Guard (NG) served as a critical component of the USA's response to the Coronavirus Disease 2019 (COVID-19) pandemic, while concurrently managing their personal responses to the pandemic. Determining whether the activation of NG service members in response to the COVID-19 pandemic was associated with a greater psychological strain can identify NG's needs for mental health support.

Materials And Methods: We surveyed 3993 NG unit (NGU) service members (75% Army NG, 79% enlisted, 52% 30-49 years old, and 81% males) during the COVID-19 pandemic, with surveys administered between August and November 2020.

COVID-19 Pandemic Responses among National Guard Service Members: Stressors, Coping Strategies, Sleep Difficultiesand Substance Use.

The National Guard (NG) served as a critical component of the US COVID-19 response while concurrently managing personal COVID-19 responses. Understanding pandemic-related concerns, sleep difficulties, increased substance use, and stress management strategies can promote readiness for subsequent disasters. We surveyed 3221 NG service members (75% Army; 79% enlisted; 52% 30-49 years; 81% male) during COVID-19 (August-November 2020).

Responding to Repeated Disasters: Time to Recovery in Public Health Workers.

Objective: In times of repeated disaster events, including natural disasters and pandemics, public health workers must recover rapidly to respond to subsequent events. Understanding predictors of time to recovery and developing predictive models of time to recovery can aid planning and management.

Methods: We examined 681 public health workers (21-72 y, M(standard deviation [SD]) = 48.

Determination of Cyanotoxins and Prymnesins in Water, Fish Tissue, and Other Matrices: A Review.

Harmful algal blooms (HABs) and their toxins are a significant and continuing threat to aquatic life in freshwater, estuarine, and coastal water ecosystems. Scientific understanding of the impacts of HABs on aquatic ecosystems has been hampered, in part, by limitations in the methodologies to measure cyanotoxins in complex matrices. This literature review discusses the methodologies currently used to measure the most commonly found freshwater cyanotoxins and prymnesins in various matrices and to assess their advantages and limitations.

Exposure to Workplace Trauma and Posttraumatic Stress Disorder Among Intern Physicians.

Importance: Physicians are exposed to traumatic events during their work, but the impact and outcomes of these exposures are understudied.

Objective: To determine the prevalence and associations of work-related trauma exposure and posttraumatic stress disorder (PTSD) among a cohort of resident physicians in their internship year of training.

Design, Setting, And Participants: This cohort study involved physicians entering internship at US residency programs nationwide in 2018.

Longitudinal Study of Hurricane Preparedness Behaviors: Influence of Collective Efficacy.

Objective: Community characteristics, such as collective efficacy, a measure of community strength, can affect behavioral responses following disasters. We measured collective efficacy 1 month before multiple hurricanes in 2005, and assessed its association to preparedness 9 months following the hurricane season.

Methods: Participants were 631 Florida Department of Health workers who responded to multiple hurricanes in 2004 and 2005.

Safety and Confidence in Local Law Enforcement and Government During Serial Shooting Events: Association With Daily Life Activities.

Objective: This study examined the relationship of perceived safety and confidence in local law enforcement and government to changes in daily life activities during the Washington, DC, sniper attacks.

Methods: Participants were 1238 residents from the Washington, DC metropolitan area who were assessed using an Internet survey that included items related to safety at work, at home, and in general, confidence in law enforcement/government, and changes in routine daily life activities.

Results: A majority of participants (52%, = 640) reported changing their daily life activities, with approximately one-third identifying changes related to being in large places and getting gas.