Nowadays, academic journals of high standing rarely accept a conceptual idea in paper not instantly accompanied by econometric estimates. The would almost certainly get rejected. Empirical validation based on past statistical data has produced an unfortunate backward orientation economics. While one can learn from the past, this approach fails when underlying conditions strongly change. suggest...

This is a short poem reflecting on the physician's commitment to abstain from killing.

This work presents a generalized angle-dependent ray transfer function that can accurately map the angular and spatial distribution of light intensities on tissue surface onto camera image plane in non-contact camera-based imaging system. The method developed here goes beyond existing models apply to angle-averaged tomographic data alone. operator was constructed using backward tracing based ra...

Cloud Absorption Radiometer (CAR) multispectral and multiangular data, collected during the Smoke, Clouds, and Radiation–Brazil (SCARB) experiment, was used to examine the ratio technique, the official method for remote sensing of aerosols over land from the Moderate Resolution Imaging Spectroradiometer (MODIS) data, for view angles from nadir to 65° off-nadir. The strategy we used is to first ...

The role of phonological infonnation in English word identification and the activation pattern of phonological and associative dimensions were investigated with a backward-masking paradigm. Mask type (graphemic, homophonic, associative, unrelated word control, and nonletter #-baseline) and target exposure duration were manipulated. Graphemic and homophonic but not associative masks influenced t...

Considering the high-speed data transfer by the ABR service class in a wireless ATM network, we investigate the impact of forward and backward hard handover protocols on the performance of the three rate-based ABR flow-control schemes Explicit Rate Indication for Congestion Avoidance (ERICA+), Fuzzy Explicit Rate Marking (FERM) and a new promising adaptation of FERM, called FERMA. We evaluate t...

The coupled translocation of transfer RNA and messenger RNA through the ribosome entails large-scale structural rearrangements, including step-wise movements of the tRNAs. Recent structural work has visualized intermediates of translocation induced by elongation factor G (EF-G) with tRNAs trapped in chimeric states with respect to 30S and 50S ribosomal subunits. The functional role of the chime...