Rosai dorfman disease: A rare presentation of primary ureteral involvement with concurrent sarcoidosis.

Rosai-Dorfman disease is a rare condition with poorly understood pathogenesis at this time. Although it often involves the lymph nodes, it can present nearly anywhere at extranodal sites. Patients are frequently asymptomatic, but surgical debulking is currently the only method of treatment that has shown benefit for patients requiring intervention.

Transition from SAMO to Rydberg State Ionization in C in Femtosecond Laser Fields.

The transition between two distinct ionization mechanisms in femtosecond laser fields at 785 nm is observed for C molecules. The transition occurs in the investigated intensity range from 3 to 20 TW/cm and is visualized in electron kinetic energy spectra below the one-photon energy (1.5 eV) obtained via velocity map imaging.

The Use of 2 Conditioning Programs and the Fitness Characteristics of Police Academy Cadets.

Context:  Police academy training must physically prepare cadets for the rigors of their occupational tasks to prevent injury and allow them to adequately perform their duties.

Objective:  To compare the effects of 2 physical training programs on multiple fitness measures in police cadets.

Design:  Cohort study.

Coherent electronic wave packet motion in C(60) controlled by the waveform and polarization of few-cycle laser fields.

Strong laser fields can be used to trigger an ultrafast molecular response that involves electronic excitation and ionization dynamics. Here, we report on the experimental control of the spatial localization of the electronic excitation in the C_{60} fullerene exerted by an intense few-cycle (4 fs) pulse at 720 nm. The control is achieved by tailoring the carrier-envelope phase and the polarization of the laser pulse.

Identification of a previously unobserved dissociative ionization pathway in time-resolved photospectroscopy of the deuterium molecule.

A femtosecond vacuum ultraviolet (VUV) pulse with high spectral resolution (<200  meV) is selected from the laser-driven high order harmonics. This ultrafast VUV pulse is synchronized with an infrared (IR) laser pulse to study dissociative ionization in deuterium molecules. At a VUV photon energy of 16.