THE PENNSYLVANIA FIREBALL OF FEBRUARY 27, 1935

Collective dynamics of the fireball

I analyse the identified single-particle pt spectra and two-pion Bose-Einstein correlations from RHIC. They indicate a massive transverse expansion and rather short lifetime of the system. The quantitative analysis in framework of the blast-wave model yields, however, unphysical results and suggests that the model may not be applicable in description of two-particle correlations. I then discuss...

Diseases of the Lachrymal Sac *A Paper read before the Bristol Medico-Chirugical Society on Wednesday, February 13th, 1935.

In dealing with the treatment of these conditions I propose to devote my time chiefly to the methods of treatment of stenosis and inflammation of the lachrymal passages, passing quickly over those of congenital or traumatic origin. 1. Congenital.?The most frequent cause is obstruction at the lower end owing to a mass of epithelial cells situate at the nasal opening. This results in the formatio...

The origin of modern humans and the impact of chronometric dating. Symposium. February 26-27, 1992.

Outbreak of Cryptosporidiosis Among Veterinary Medicine Students — Philadelphia, Pennsylvania, February 2015

On February 20, 2015, a northeastern university's student health center was notified of five veterinary medicine students with gastrointestinal symptoms. An investigation was conducted to establish the existence of an outbreak, determine the etiology, evaluate risk factors, and recommend control measures.

the effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...