Adsorption of Azobenzene on Hexagonal Boron Nitride Nanomesh Supported by Rh(111).

Adsorption properties of azobenzene, the prototypical molecular switch, were investigated on a hexagonal boron nitride (h-BN) monolayer ("nanomesh") prepared on Rh(111). The h-BN layer was produced by decomposing borazine (BNH) at 1000-1050 K. Temperature-programmed desorption (TPD) studies revealed that azobenzene molecules adsorbed on the "wire" and "pore" regions desorb at slightly different temperatures.

Rats alternate on a dry-land but not swimming-pool (Morris task) place task: implications for spatial processing.

Groups of rats were rewarded with food for traveling from a start point to 2 different locations while their alternations in choice between those locations on 2 daily trials were recorded. In one experimental condition, the rats swam and received food once they climbed upon a platform that was hidden just below the surface of the water at the food location. In the other condition, the rats walked to reach the food.

The developmental onset of a rudimentary form of play fighting in C57 mice.

Play fighting in its most elaborate form involves nonagonistic wrestling between pairmates, where one partner grabs, holds, bites, or otherwise contacts the other. Such play occurs in the absence of the functional consequences associated with serious fighting (e.g.

[Experience with routine use of combined inhalation-perfusion lung scintigraphy. The most reliable diagnosis of pulmonary embolism].

The authors performed combined inhalation/perfusion scintigraphy in 217 patients with suspected pulmonary embolism in order to improve the diagnostic accuracy. Before the conventional perfusion study they also visualized the distribution of ventilation with a Venticis-II inhalator equipment. Regarding pulmonary embolism 10 (5%), 96 (44%), 39 (18%) investigations were "very low", "low", and "high probability", respectively.