Search results for "Subtraction"
showing 2 items of 112 documents
The efficacy of Ozone Therapy on different types of lumbar disc herniation : Proposal for guidance updates [abstract]
2018
Objective: To explore the possible mechanisms of pain relief by ozone therapy in patients with different types of lumbar intervertebral disc protrusion.
 Methods: The medical records of a total of 250 patients with protrusion of lumbar intervertebral disc (159 males, 91 females, aged 14–85 years) admitted in the South Hospital from January 2009 to June 2014 were retrospectively reviewed. Patients with protrusion of lumbar intervertebral disc were divided into four groups according to T2-weighted magnetic resonance imaging and digital subtraction angiography findings during ozone injection: type I, fibrous ring rupture without nucleus pulposus protrusion; type II, fibrous ring rupture w…
Branching Ratios and Spectral Functions of $\tau$ Decays: final ALEPH measurements and physics implications
2005
The full LEP-1 data set collected with the ALEPH detector at the $Z$ pole during 1991-1995 is analysed in order to measure the $\tau$ decay branching fractions. Extensive systematic studies are performed, in order to match the large statistics of the data sample corresponding to over 300 000 measured and identified $\tau$ decays. Branching fractions are obtained for the two leptonic channels and eleven hadronic channels defined by their respective numbers of charged particles and $\pi^0$'s. Using previously published ALEPH results on final states with charged and neutral kaons, corrections are applied to the hadronic channels to derive branching ratios for exclusive final states without kao…