Thinking With Things: Landscapes, Connections, and Performances as Modes of Building Shared Understanding.

This article explores the relatively underexplored potential for physicalizations to materialize qualitative data related to human experiences and knowledge domains. Our reading of "data" in this context extends from imperceptible systems and infrastructures to mental models and the phenomenological dimensions of experiences themselves. Physical objects can be regarded as a form of knowledge with which to inquire about human life, bring about improved conditions, and imagine alternative realities.

Psittacosis Outbreak among Workers at Chicken Slaughter Plants, Virginia and Georgia, USA, 2018.

During August-October, 2018, an outbreak of severe respiratory illness was reported among poultry slaughter plant workers in Virginia and Georgia, USA. A multiorganizational team investigated the cause and extent of illness, determined that the illness was psittacosis, and evaluated and recommended controls for health hazards in the workplace to prevent additional cases.

Collaborative Public Health Investigation of Clenbuterol-Adulterated Heroin Outbreak-Richmond, Virginia, March-April 2015.

Context: In March 2015, the Virginia Department of Health (VDH) was alerted by the Virginia Poison Center of a 6-patient cluster treated for severe clinical presentations after using heroin. Patients' symptoms were atypical for heroin use, and concern existed that patients were exposed to heroin that had been adulterated with or replaced by another substance.

Objective: To understand the extent and characterization of the outbreak and implement response measures to prevent further cases.

A hybrid strategy for surveillance of individuals potentially exposed to contaminated methylprednisolone acetate--Virginia, 2012.

In September 2012, a multistate outbreak of fungal infections associated with the use of contaminated steroid products resulted in 675 exposed persons in Virginia and 53 cases of fungal infections, including 2 deaths. This article describes the design and implementation of a "hybrid" active public health surveillance system and related communication activities in partnership with key clinical stakeholders in Virginia. Strong collaboration with clinical partners is critical in establishing and implementing a surveillance system for an evolving outbreak.

Elemental gas phase atmospheric mercury as it interacts with the ambient aerosol and its subsequent speciation and deposition.

A model describing the interaction of gas phase elemental atmospheric mercury, H(g)(o), with the ambient aerosol has been linked to hybrid single-particle Lagrangian integrated trajectory (HYSPLIT_4) a hybrid dispersion and deposition model. The integrated modelling system allows H(g)(o) emitted from an anthropogenic source in the presence(g) of the local aerosol to be followed and calculates the deposition fluxes to terrestrial and water receptors resulting from the interaction between the H(g)(o) and the aerosol. The model includes a source-based parameterized description of the ambient aerosol, a gas-phase diffusion and adsorption model for the interaction of H(g)(o) and the ambient particulate matter under conditions of low relative humidity, and an aqueous phase Hg chemistry model to allow for complete or partial deliquescence of the particles under conditions of high humidity.