Kidney Cancer Risk Associated with Historic Groundwater Trichloroethylene Contamination

Trichloroethylene (TCE) is a well-documented kidney carcinogen based on a substantial body of evidence including mechanistic and animal studies, as well as reports from occupational settings. However, the cancer risks for those in residential exposures such as TCE contamination in groundwater are much less clear. The objective of this study was to perform a detailed spatio-temporal analysis of estimated residential TCE exposure in New Hampshire, US. We identified kidney cancer cases (n = 292) and age-, gender-matched controls (n = 448) from the Dartmouth-Hitchcock Health System and queried a commercial financial database for address histories. We used publically available data on TCE levels in groundwater measured at contaminated sites in New Hampshire and then modeled the spatial dispersion and temporal decay. We overlaid geospatial residential locations of cases and controls with yearly maps of estimated TCE levels to estimate median exposures over the 5, 10, and 15-year epochs before diagnosis. The 50th–75th percentile of estimated residential exposure over a 15-year period was associated with increased kidney cancer risk (adjusted Odds Ratio (OR) 1.78 95% CI 1.05–3.03), compared to <50th percentile. This finding supports the need for groundwater monitoring of TCE contaminated sites to identify potential public health risks.

Laying the Foundation for a Micro-Credential Strategy

In 2019, Southern New Hampshire University (SNHU or University) convened a Digital Credentials Lab (DCL) team to research, design, and pilot micro-credentials. The goal was to determine if there was a demand for this type of “alternative” learning experience in the market to see if it could be sustainable within the current higher education framework at the University. Through rigorous research, including both internal and external interviews, multiple pilots, and testing, the DCL sought to answer these questions and determine if micro-credentials could add more diversity to the SNHU catalog. In this chapter, the authors offer insight and experience, including findings from various pilots and learner feedback, to help inform other institutions that may be considering offering micro-credentials.

Review of the New World species of Microplitis Foerster (Hymenoptera, Braconidae, Microgastrinae) attacking Sphingidae (Lepidoptera, Bombycoidea)

Microplitis Foerster is a highly diverse and cosmopolitan genus within Microgastrinae (Hymenoptera, Ichneumonoidea, Braconidae). Microplitis ceratomiae Riley, a widely distributed North American species, exclusively attacks sphingid caterpillars. In this paper, M. ceratomiae is reported parasitizing a caterpillar of Sphinx poecila Stephens (Sphingidae) which was collected feeding on Spiraea alba Du Roi (Rosaceae), a species of white meadowsweet native to the wet soils of the Allegheny Mountains and other portions of eastern North America. Here, we report and describe this new host-parasitoid-food plant association in southern New Hampshire, and include a distribution map for the species. Biological, ecological and phylogenetic analyses, and an identification key for the nine known species of Microplitis that attack sphingids in the New World are provided.

Tracking Recent DDT Contamination in a Northern New England Watershed

Research on declines in loon populations at Squam Lake, New Hampshire, U.S.A., point to multiple potential causes since 2005, including dichlorodiphenyltrichloroethane (DDT). This study narrows down sources of DDT in a small sub-watershed by focusing mainly on collecting and analyzing soil and sediment samples, achieving rapid source area determination of DDT. We find presence of p,p’ isomers of DDT and DDE in the Bennett Brook sub-watershed arising from long-term soil and sediment storage of applications 60 years ago, plus a concentrated and current source area at a former barn. Highest concentrations, 723 μg/kg p,p’-DDT and 721 μg/kg p,p’-DDE, occur in the soils adjacent to the barn’s foundation remnants. DDT exceeds that of the metabolite, DDE, in many soils around Bennett Brook, including but not limited to the barn site. In soils where DDT>DDE, we infer mechanisms that delayed breakdown of DDT over the last 60 years. A Pb-210 dated lake sediment core, collected near the outlet of Bennet Brook, shows continuous accumulation of p,p’-DDE and p,p-DDD after 1951. These residuals likely derived from multiple sources within the sub-watershed, including orchard soils, the barn site, and from mobilized sediment deposits following extreme floods in the watershed. Although the DDT residues fall below mandatory soil remediation levels for the State of New Hampshire, Bennett Brook sediments exceed sediment quality guidelines for protection of aquatic life. Crayfish collected in Bennett Brook have significantly higher concentrations of p,p’-DDE than crayfish collected elsewhere in Squam Lake.

Reframing Older Adults’ Violence Toward Staff as Self-Protection

One of the first studies on workplace violence in nursing homes was published in 1985. Forty-five (45) years later, resident violence against staff continues to increase in incidence and severity. At the request of a state senator, a New Hampshire psychiatrist formed a research group to conduct the first New Hampshire survey on staff experience of workplace violence. Study questions focused on experiences of workplace violence and incident reporting, and the availability and benefit of workplace violence training programs. Results were consistent with recently published literature: violence is an expected, normalized element when providing care; potential repercussions and perceived resident lack of intent were major reasons for incident non-reporting. Analysis of study results and review of the literature led to the question: Are older residents’ violent behaviors towards staff an act of self-protection?

Improving Policy and Legislation Related to Healthcare Workplace Violence

Our group conducted the first known New Hampshire survey on healthcare staff experience of workplace violence. Study questions focused on experiences of workplace violence, incident reporting mechanisms, and the availability and benefit of workplace violence training programs. Results were consistent with recently published literature: violence against healthcare workers remains a serious public health problem that is under-reported, understudied, “tolerated and largely ignored.” We will discuss the aspects of policy and legislative responses to workplace violence that have been insufficient to address this problem. We also will present some strategies that, if implemented, could lead to improved policy and legislation that may be more proactive in reducing such violence.