Understanding 19th century ‘baby-farming’ women who killed: aberration or ‘rational’ act?

Writing for Frontier, PhD student Joshua Stuart-Bennett explains his research into the child killing activity associated with Victorian ‘baby-farming’. In contrast to understandings that have been based upon cases of individual women and their nature, he hopes to place the phenomenon within the wider social, cultural and historical context to reframe our perception of these women and their crimes

The influence of retardation and dielectric environments on interatomic Coulombic decay

Interatomic Coulombic decay (ICD) is a very efficient process by which high-energy radiation is redistributed between molecular systems, often producing a slow electron, which can be damaging to biological tissue. During ICD, an initially-ionised and highly-excited donor species undergoes a transition where an outer-valence electron moves to a lower-lying vacancy, transmitting a photon with sufficient energy to ionise an acceptor species placed close by. Traditionally the ICD process has been described via ab initio quantum chemistry based on electrostatics in free space, which cannot include the effects of retardation stemming from the finite speed of light, nor the influence of a dispersive, absorbing, discontinuous environment. Here we develop a theoretical description of ICD based on macroscopic quantum electrodynamics in dielectrics, which fully incorporates all these effects, enabling the established power and broad applicability of macroscopic quantum electrodynamics to be unleashed across the fast-developing field of ICD

A Moveable Beast: Subjective Influence of Human-Animal Relationships on Risk Perception, and Risk Behaviour during Bushfire Threat

This article examines how human-animal connections influence risk perception and behaviour in companion animal guardians exposed to bushfire threat in Australia. Although the objective role of psychological bonds with companion animals is well accepted by researchers, subjective interpretations of these bonds by animal guardians are relatively underexamined in this context. We argue that the ways in which connections with pets and other animals are represented influences different forms of safety-risk perception and behaviour when managing animals’ safety in the face of disaster threat. Thematic analysis of 21 semi-structured interviews with South Australian residents in bushfire-affected areas supported the role of the human-animal bond in shaping risk perception, and influencing engagement in risk-behaviour. Influential factors included animals’ “life value,” “relative versus absolute” risk framing, the “constellation of bonds,” and “action paralysis” when facing threat. Implications for future research in decision-making and risk propensities of animal guardians facing disaster threat alongside their pets are then discussed