BACKGROUND In recent decades there has been increasing evidence of a relationship between self-reported racism and health. Although a plethora of instruments to measure racism have been developed, very few have been described conceptually or psychometrically Furthermore, this research field has been limited by a dearth of instruments that examine reactions/responses to racism and by a restricte...

This paper presents an original approach to the problem of camera calibration using a calibration pattern. It consists of directly searching for the camera parameters that best project three-dimensional points of a calibration pattern onto intensity edges in an image of this pattern, without explicitly extracting the edges. Based on a characterization of image edges as maxima of the intensity g...

The attenuation provided by a hearing protection device (HPD) in the field is usually estimated by applying a derating factor to the laboratory-determined noise reduction rating (NRR) of the HPD. However, attenuation is highly dependent on individual-specific HPD fit. Prediction of an individual's attenuation depends on the accuracy of the measurement system and the variability of attenuation o...

The transition to the Neolithic on East European Plain was a very different process Western model, featuring long-lasting hunter-gatherer economy and late introduction of agriculture. authors present results from multiproxy research 13.5m-deep core organic deposits Serteya mire as part an international project understand human-environment relations in Dvina Lakeland.

We used the modified one finger laparoscopy technique on 100 patients and found it to be successful in 87% of cases. No major complication occurred during or after such operations. However, we think that this technique is accompanied by three important problems: 1) The CO2 gas is lost f1"om the subumbilical incision, 2) A secondary fascial layer is present in some patients, and 3) There i...