Chronic pyelonephritis most often occurs as a result of urinary tract infection, particularly when there is occasional or persistent backflow of urine from the bladder into the ureters or an area called the kidney pelvis.s to the treatment for chronic pyelonephritis, long-term antibiotic therapy may be required, it is very important that you finish all the medicines. The antibiotics commonly used include Cephalosporin, Levofloxacin and ciprofloxacin, Amoxicillin, Sulfisoxazole, Trimethoprim and so on.
Gamma ray (also called gamma radiation), denoted by the lower-case Greek letter gamma (Î³ or Î³ {\displaystyle \gamma } ), is penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei and consists of high-energy photons.
Gamma ray burst is a source of a particular type of cosmic rays. Cosmic rays are high-energy particles arriving at Earth from sources that lie outside it. What exactly is high energy in this definition is not well defined. Practically any stable particle can be a cosmic ray. Thus you may have photons (gamma rays), electrons, protons, nuclei, neutrinos... The most common type of cosmic rays detected on Earth are actually protons. It has to do with the fact, that a high energy proton can travel very large distances without losing significant energy.