We inquired whether a biophysical coupling mechanism involving on

We inquired whether a biophysical coupling mechanism involving only the electric field could explain the occurrence of the brain potentials. Materials and methods: An external electric field capable of producing a brain electric field comparable

to that induced by the magnetic stimuli was identified by finite-element analysis. The electroencephalogram from 23 subjects was measured from six scalp derivations in the presence and absence of the external electric field, and the presence of evoked potentials was assessed using nonlinear and linear analyses. Results: Evoked potentials were observed in all but one subject (p0.05 in each subject); the potentials had the same latency, duration, and distribution of Staurosporine inhibitor magnitudes as seen in the earlier studies, and were detectable only by means of nonlinear analysis. Using a realistic physical model of an ion channel, we showed that transduction of an electric field could be explained by assuming that the field exerted a force on glycocalyx molecules attached to a channel gate. Conclusion: The evoked potentials described CDK and cancer here, as well as those observed previously in response to magnetic stimuli, were probably triggered by the induced electric field.”
“Introduction:

We retrospectively assessed our experience with ureteroscopy (URS) for ureteric calculi in prepubertal children. Patients and Methods: The records of all children who underwent URS at our institution for ureteral calculi between September 2007 and July 2009 were retrospectively reviewed. Patient demographics, stone location and size, pre- and postoperative stenting, intraoperative active dilatation, stone-free rates and complications were noted. Results: A total of 26 patients (20 males and 6 females; mean age 59.9 months) underwent 30 URS procedures with rigid ureteroscopes for 31 ureteral calculi. The mean size of ureteral stones was 8.6 mm. LOXO-101 in vitro A total of 18 URS procedures were performed without any active ureteral dilatation, and 8 patients underwent 12 passive dilatations of initially inaccessible ureters. Stents remained in place for 2-4 weeks. The stone-free rate was 84.6% for all patients and all procedures. Postoperatively,

12 patients (46%) had stent placement for 2-5 days because of stone burden, edema of the ureteral orifice and hematuria. Conclusions: URS treatment of ureteral stones without active dilatation can be performed safely and effectively in prepubertal children. Passive ureteral dilatation might be necessary in some cases to enable ureteral access. Copyright (C) 2010 S. Karger AG, Basel”
“Quality of life (QoL) in head and neck cancer patients has been of increasing interest for some years. Unfortunately, only poor data exist regarding the impact of professional psychological support on QoL.

Objectives: The purpose of this study was to investigate psychological aspects of QoL as well as the potential need for additional psychological treatment.

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