conclusions single dose therapy of mtx has sufficient power and efficacy in the treatment of ectopic pregnancy, however in patients with higher serum level of β-hcg, the successful treatment increases by using double dose method. using double dose also could decrease the necessity of operation, re-administration of mtx, and duration of hospitalization. results results showed that the rate of su...

Extension-distraction injuries caused by hyperextension of the spine typically occur in the cervical region, as seen in “whiplash” injuries. This type of injury is rare in the thoracolumbar spine, comprising less than 3% of fractures in this region . Denis and Burkus described it as “lumberjack paraplegia” as most patients with this injury were struck in the back by a falling tree . Rare instan...

We comment on the recent paper by Abul-Magd (J.Phys.A: Math.Gen. 29 (1996) 1) concerning the energy level statistics in the mixed regime, i.e. such having the mixed classical dynamics where regular and chaotic regions coexist in the phase space. We point out that his basic assumption on the additive property of the level-repulsion function r(S) (conditional probability density) in the sense of ...

The Efetimes of B " and B+ mesons have been measured using a sample of 150,000 hadronic 20's co~ected by the SLD experiment at the SLC between 1993 and 1995. Two analyses are presented. The first identifies semileptonic decays of B mesons with high (p, pt) leptons and reconstructs the B meson decay length and charge by vertexing the lepton with a partially reconstructed D meson. 428 (549) neutr...

We report two preliminary measurements of the time dependence of B 0 d B 0 d mixing using novel techniques with a sample of 150,000 hadronic Z 0 decays collected by the SLD experiment at the SLC. B decay v ertices are reconstructed inclusively with a topological technique and the B hadron avor at production is determined by exploiting the large left-right forward-backward asymmetry of Z 0 ! b b...