Attosecond electronic and nuclear quantum photodynamics of ozone monitored with time and angle resolved photoelectron spectra.

Recently we reported a series of numerical simulations proving that it is possible in principle to create an electronic wave packet and subsequent electronic motion in a neutral molecule photoexcited by a UV pump pulse within a few femtoseconds. We considered the ozone molecule: for this system the electronic wave packet leads to a dissociation process. In the present work, we investigate more specifically the time-resolved photoelectron angular distribution of the ozone molecule that provides a much more detailed description of the evolution of the electronic wave packet.

Management of patients with low-risk chest pain at the time of admission: a prospective study on a non-selected population from the Emergency Department.

Background: The management of patients with acute chest pain is a common and difficult challenge from the epidemiological, clinical, organizational and malpractice points of view. Our purpose was to test and implement a simple clinical protocol for the management of patients with acute chest pain and at low-risk for an acute coronary syndrome (ACS) at the time of admission to the Emergency Department (ED).

Methods: During a 5-month study period, 570 consecutive patients were admitted to the ED with acute chest pain: 224 patients were excluded owing to the presence of a clear diagnosis of an ACS or of high-risk factors.