28 research outputs found
Neuroactive substances in the developing dorsomedial telencephalon of the pigeon Columba livia: Differential distribution and quantitative analysis
No full textDetection of cell swelling by optical tunnel effect
No full textThe optical tunnel effect allows the measurement of distances between two media separated by an optically less dense medium. Variations of distance by fractions of a nanometer can be detected. A general theory of the effect has been developed in order to design different experimental setups for biophysical applications. An optimum agreement has been achieved between theoretical and experimental data. A first attempt to detect the swelling of cells in suitable biological samples has been performed
Development, plasticity and differential organization of parallel processing of visual information in birds
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Valutazione degli effetti sedativi del midazolam, in pazienti di età pediatrica sottoposti a RMN
No full textPhotochemical Bromination of 2,5-Dimethylbenzoic Acid as Key Step of an Improved Alkyne-Functionalized Blue Box Synthesis**
No full textCyclobis(paraquat-p-phenylene), also known as "blue box", is a highly electron-deficient macrocycle, widely used as a molecular receptor for small electron-rich molecules. Inserting a reactive functional group onto the molecular structure of this cyclophane is paramount for its inclusion into complex architectures. To this aim, including an alkyne moiety would be ideal, because it can participate in click reactions. However, the synthesis of such alkyne-functionalized cyclophane suffers from several drawbacks: the use of toxic and expensive CCl4, the need for high-pressure reactors, and overall low yield. We have revised the existing synthesis of this cyclophane derivative bearing an alkyne moiety, to overcome all these limitations. In particular, photochemical radical bromination is adopted to obtain a sensitive intermediate. We demonstrated that the synthesized host molecule can be functionalized via click reactions and take part in radical-radical interactions. Our work makes a key functionalized paraquat macrocycle more accessible, facilitating the development of novel redox-responsive systems
Anestesia bilanciata versus total intravenous anethesia nel trapianto di rene
No full textAim. An ideal anesthetic regimen for kidney transplantation should be able to assure haemodynamic stability to obtain an optimal graft reperfusion. The aim of this study was to compare 2 regimens of anesthesia for patients submitted to kidney transplantation. Methods. We studied 40 patients: 20 subjects (Group A) received balanced anesthesia with thiopental, fentanyl and isoflurane, to the others 20 (Group B), a total intravenous anesthesia (TIVA) with propofol and remifentanyl was given. In both groups muscle relaxation was obtained with a bolus of cisatracurium followed by a continuous infusion. We performed standard clinical, invasive blood pressure and central venous pressure monitoring. Hemodynamic data have been collected at standard times. During the postoperative period we evaluated the recovery (Aldrete Score) in the recovery room and the analgesia (VAS) at 1, 6, 24 h after the end of surgery. Results. The trend of hemodynamic parameters did not show statistically significant differences between the 2 groups. We observed statistically significant differences concerning the quality of the recovery and the postoperative analgesia. The recovery in group B was faster than in group A, but in group A the pain control was better than in group B at least during the first postoperative hour. Conclusion. For their pharmacokinetic properties, propofol, remifentanyl and cisatracurium allow to obtain a good control of the hemodynamic parameters and a fast and safe recovery of consciousness. Total intravenous anesthesia regimen seems to be an alternative to the balanced anesthesia for patients undergoing kidney transplantation
Design and preliminary assessment of a smart textile for respiratory monitoring based on an array of Fiber Bragg Gratings
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Hypo-Gravity exercise induce improvement in physical clinical scales and in pro-inflammatory index in Multiple Sclerosis
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