1 Division of General Internal Medicine, Massachusetts General Hospital, Boston, MA, USA; and Harvard Center for Population and Development Studies, Cambridge, MA, USA 2 Department of Global Health, ...

Two experiments used a 3-choice variation of the prisoner's dilemma game to explore the paradoxical implications of expected cooperation of other groups and individuals for competitiveness and ...

Radiocontrast has long been thought of as nephrotoxic; however, a number of recent observational studies found no evidence of an association between intravenous ...

Regression discontinuity design (RDD) is a quasi-experimental research method used to identify causal effects by exploiting a cutoff or threshold in the assignment of treatment. Regression ...

In this work, Fourier-series representation of a discontinuous function is used to highlight and clarify the controversial problem of finding the value of the function at a point of discontinuity.

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Oriented object detection has been developed rapidly in the past few years, where rotation equivariance is crucial for detectors to predict rotated boxes. It is expected that the prediction can ...