Predicting climate change impacts on poikilotherms using physiologically guided species abundance models.

Poikilothermic animals comprise most species on Earth and are especially sensitive to changes in environmental temperatures. Species conservation in a changing climate relies upon predictions of species responses to future conditions, yet predicting species responses to climate change when temperatures exceed the bounds of observed data is fraught with challenges. We present a physiologically guided abundance (PGA) model that combines observations of species abundance and environmental conditions with laboratory-derived data on the physiological response of poikilotherms to temperature to predict species geographical distributions and abundance in response to climate change.

SPIE Medical Imaging 50th anniversary: history of the Image Perception, Observer Performance, and Technology Assessment Conference.

As SPIE Medical Imaging celebrates its 50th anniversary, we reflect on the history of the Image Perception, Observer Performance, and Technology Assessment Conference and its importance within the SPIE Medical Imaging Symposium and the greater medical imaging community.

The place of medical image perception in 21st-century health care.

An image that is not perceived and interpreted can have no positive impact on health care. In this article, the authors review publicly available data and the published literature concerning the unitary event of the perception and interpretation of medical images. Their review shows that this event occurs as frequently as do major medical, public health, and public safety events in the United States; constitutes a significant economic activity; and makes up a significant portion of hospital-based health care in the United States.