Multistep direct mechanism in the (p→,He3) inclusive reaction on Co59 and Nb93 at incident energies between 100 and 160 MeV

Emission-energy distributions for cross sections as well as analyzing powers were investigated for (p→,He3) reactions on Co59 and Nb93 to the continuum from a threshold of ∼40 MeV up to the kinematic limit at incident energies of 130 and 160 MeV. A range of scattering angles from 15° to 140° (laboratory) was explored. The experimental distributions were compared with a multistep direct theory in which a reaction mechanism based on deuteron pickup is employed. Reasonable agreement between experimental double differential cross sections and analyzing powers and the theoretical expectation was obtained. This work, together with published results for the same reaction and targets at a lower projectile energy of 100 MeV, allowed the incident-energy dependence of the cross section and analyzing power distributions to be explored. © 2007 The American Physical Society.Articl

Effect of intravitreal bevacizumab on retrobulbar blood flow of patients with diabetic macular edema

Ornek, Nurgul/0000-0003-3068-1831; INAL, MIKAIL/0000-0003-0642-7913;WOS: 000366484400023PubMed: 25907286Purpose: To determine the effect of intravitreal bevacizumab on retrobulbar blood flow of patients with diabetic macular edema. Methods: Peak systolic velocity, end-diastolic velocity, resistance, and pulsatility indices of central retinal artery (CRA), nasal posterior ciliary artery (NPCA), temporal posterior ciliary artery (TPCA), and ophthalmic artery (OA) were assessed by color Doppler ultrasonography in injected and uninjected eyes of 37 patients at baseline and at day 1 and day 7 after the injection. Results: At day 1 after the injection, peak systolic and end diastolic velocities of the CRA and NPCA in the injected eyes and peak systolic velocity of NPCA in the uninjected eyes decreased significantly (p0.05). In the injected eyes, there was no significant change in resistance and pulsatility indices (p>0.05), but a decrease in resistance index of NPCA and resistance and pulsatility indices of TPCA occurred in uninjected eyes at day 7 after the injection (p = 0.016, p = 0.023, and p = 0.025, respectively). Conclusions: Intravitreal bevacizumab affects retrobulbar blood flow in injected and uninjected eyes of patients with diabetic macular edema