a 22-year-old woman presented with acute left-sided pleuritic chest pain and dyspnea 6 days after surgery for revision of the stenotic central aortopulmonary shunt. she had a history of tetralogy of fallot (tof), pulmonary valve stenosis, ventricular septal defect and major aortopulmonary collateral artery. her waterston shunt was placed when she was 5 years old and stented and re-dilated after...

Photons participate in many atomic and molecular interactions and processes. Recent biophysical research has discovered an ultraweak radiation in biological tissues. It is now recognized that plants, animal and human cells emit this very weak biophotonic emission which can be readily measured with a sensitive photomultiplier system. UVA laser induced biophotonic emission of cultured cells was u...

Abstract Sunflower production plays an important role in global industrial oil production. Two-spotted spider mite, Tetranychus urticae , is a dangerous, polyphagous arthropod pest with cosmopolitan distribution, which can endanger the economic features of sunflower It widely known that pests trigger various reactions host plants. Among these, detection ultra-weak photon emission (UPE) enhanced...

The word "biophotons" is used to denote a permanent spontaneous photon emission from all living systems. It displays a few up to some hundred photons/(s x cm2) within the spectral range from at least 260 to 800 nm. It is closely linked to delayed luminescence (DL) of biological tissues which describes the long term and ultra weak reemission of photons after exposure to light illumination. Durin...

Bright betatron x-ray has been generated using an Ar clustering gas jet target irradiated with a 3 TW ultra-high contrast laser. The measured emission flux with photon energy > 2.4 keV reaches 2×10 8 photons/shot. It is ten-fold enhancement comparing to the emission flux produced by using gas target in the same laser parameters. Observation shows that much larger electron beam charge and diverg...

Delbrück scattering is an elastic scattering of a photon in the Coulomb field of a nucleus via a virtual electron loop. The contribution of this virtual subprocess to the emission of a photon in the collision of ultra-relativistic nuclei Z1 Z2 → Z1 Z2 γ is considered. We identify the incoming virtual photon as being generated by one of the relativistic nuclei involved in the binary collision an...