Except for the heart itself, the lung is the last of the major viscera to yield to the surgeon's scalpel. As late as 1896, Stephen Paget,' a distinguished, although apparently somewhat pessimistic and pragmatic British surgeon, wrote concerning malignant tumors of the chest: ".. . We have to consider only what hope can be offered to these cases by surgery. The most that can be done, and, so far...

Fig. 2. Captive common dolphins Time intervals between initiatio whistle by one individual and e of a whistle from a second in taken from analyses of whistle group of four. (B) Same; tak analyses of whistles made by a 1 three of the original four; eac hatched area indicates number 4 that one of the two remaining abruptly terminated its norma contoured) whistle. (C) Tin vals between signature wh...

With the advent of time-of-flight (TOF) PET scanners, joint maximum-likelihood reconstruction of activity and attenuation (MLAA) maps has recently regained attention for the estimation of PET attenuation maps from emission data. However, the estimated attenuation and activity maps are scaled by unknown scaling factors. We recently demonstrated that in hybrid PET-MR, the scaling issue of this al...

ColHaated 50*.field photometers were operated during tße 1965 lightning study to obtain data for an analysis of the production of false alarms in air-fluorescence nuclear-explosion detection systems. Detectors were employed in spectral regions useful for air-fluorescence detection! 591* X [Ife* HI (0,0)] and 8900 A [Ife IP (1,0)], both of which are continum channels for lightning; and at wavele...

Humanity experiences the catastrophic effects of Covid-19 pandemic. In view this scenario, studies are needed to understand impacts catastrophes in most varied dimensions. The tourism sector emerges as one affected economic segments when disasters occur. For companies that operate globally, consequences influence actions international entrepreneurs. This study aims conduct a theoretical discuss...