Background: The optimal stimulation for brain development in the early academic years remains unclear. Current research suggests that musical training has a more profound impact on children's executive functions (EF) compared to other art forms. What is crucially lacking is a large-scale, long-term genuine randomized controlled trial (RCT) in cognitive neuroscience, comparing musical instrumental training (MIP) to another art form, and a control group (CG).
View Article and Find Full Text PDFBackground: To produce viral vaccines, avian cell lines are interesting alternatives to replace the egg-derived processes for viruses that do not grow well on mammalian cells. The avian suspension cell line DuckCelt-T17 was previously studied and investigated to produce a live attenuated metapneumovirus (hMPV)/respiratory syncytial virus (RSV) and influenza virus vaccines. However, a better understanding of its culture process is necessary for an efficient production of viral particles in bioreactors.
View Article and Find Full Text PDFNi and Ni(W) solid solution of bulk Ni and Ni-W alloys (Ni-10W, Ni-30W, and Ni-50W) (wt%) were mechanically compared through the evolution of their {111} X-ray diffraction peaks during in situ tensile tests on the DiffAbs beamline at the Synchrotron SOLEIL. A significant difference in terms of strain heterogeneities and lattice strain evolution occurred as the plastic activity increased. Such differences are attributed to the number of brittle W clusters and the hardening due to the solid solution compared to the single-phase bulk Ni sample.
View Article and Find Full Text PDFThe data presented in this article are related to the research article entitled "Cyclic Shear behavior of conventional and harmonic structure-designed Ti-25Nb-25Zr β-titanium alloy: Back-stress hardening and twinning inhibition" (Dirras et al., 2017) [1]. The datasheet describes the methods used to fabricate two β-titanium alloys having conventional microstructure and so-called harmonic structure (HS) design via a powder metallurgy route, namely the spark plasma sintering (SPS) route.
View Article and Find Full Text PDFData regarding bulk polycrystalline nickel samples obtained by powder metallurgy using Spark Plasma Sintering (SPS) are presented, with a special emphasis on the influence of a cold isostatic pre-compaction on the resulting morphologies and subsequent mechanical properties. Three types of initial powders are used, nanometric powders, micrometric powders and a mixture of the formers. For each type of powder, the SPS cycle has been optimized for the powders without pre-compaction and the same cycle has been used to also sinter pre-compacted powders.
View Article and Find Full Text PDFBulk Ni-W alloys having composite-like microstructures are processed by spark plasma sintering (SPS) route of Ni and W powder blends as reported in a recent study of Sadat et al. (2016) (DOI of original article: doi:10.1016/j.
View Article and Find Full Text PDFCutaneous clear cell hidradenoma is an uncommon benign adnexal tumor which is not supposed to metastasize, contrary to its rare malignant counterpart, hidradenocarcinoma. We report the case of a 49-year-old man, who had had a stable inguinal lymph node enlargement for 6 years. An excision was performed and revealed an intra-nodal tumor, made of large clear cells with abundant cytoplasm and round nuclei without atypia or mitosis.
View Article and Find Full Text PDFThe purpose of this study was to characterize the thermal behaviour of different materials subjected to an ultrasonic fountain created by an ultrasonic piezoelectric transducer. Tests were conducted with an infrared camera to determine the surface temperature of the material samples. The main conclusion is that the plastics when subjected to the ultrasonic fountain tend to heat up strongly and can reach temperatures up to 200 °C in few seconds.
View Article and Find Full Text PDFSeventy-five patients had a lumbar sympathectomy for chronic arteritis of the lower limbs. This study was done to assess the predictive value of Hillestad's test (potential of vasodilatation) and that of the deep breath test (sympathic stimulation), realised by digital strain gauge plethysmography. Were considered a success the patients with claudication who doubled their walking distance and those with rest pain or gangrene who suffered no more or healed.
View Article and Find Full Text PDFClinical results and anatomical findings on isotopic angiography, after a minimum follow-up period of one year, were compared in 32 patients treated for iliocaval venous thrombosis. Therapy had involved: iliofemoral thrombectomy alone (8 cases), iliocaval thrombectomy and retroperitoneal clip (10 cases), a clip alone (5 cases), fibrinolysis and heparin therapy (3 cases), heparin therapy alone (6 cases). Overall clinical results were considered as being good in 26 patients and poor in 6, whereas permeability of the main venous axis was confirmed by isotopic phlebography in only 5 cases.
View Article and Find Full Text PDFParadoxical systemic embolism by venous emboli in the arterial circulation can be explained by a right-left shunt. In 5 patients, the diagnosis of paradoxical emboli was definite in three cases, and suspected in two others. Venous, arterial and cardiac angiography define the anatomical criteria which alone can confirm the diagnosis.
View Article and Find Full Text PDFTechnetium-labelled serum albumin microspheres have been used to study arteriovenous shunting in in situ saphenous vein bypasses. Their diameter (15 micron) enables the microspheres to be trapped at the capillary level, either in the limb or in the lungs, according to the extent of arteriovenous shunts. The observed shunting ranged from practically nothing to 90%.
View Article and Find Full Text PDFThe greater proportion of oxygen in the blood circulating in veins of the lower limbs bought to attention the possibility of pre-capillary arteriovenous shunting. The intra-arteriel injection of Technetium labelled serum albumin microspheres enables one to quantify arteriovenous shunts greater than 25 microns. The authors made a comparative study of arterio-venous shunting by blood gases analysis and isotopic techniques in twenty patients.
View Article and Find Full Text PDFA new paraprosthetic enteric fistula case between the small bowel and the body of a Dacron aortobifemoral prosthesis is presented. That complication happened five years after the initial reconstruction and the fistula does not interest an anastomotic site. A process is rare (22 published cases); if symptomatology is often less important than complete fistulas, surgical therapy must be aggressive to be effective.
View Article and Find Full Text PDFAn isotopic method employing microspheres of serum-albumin of a mean diameter of 15 microns was used to study the problem raised by the development of arteriovenous fistulae following saphenous by-pass in situ, enabling measurement of shunt flow and qualitative evaluation of the distal bed. Shunt blood flow varies greatly from practically negligible quantities to a maximum of 90%. Comparing data from angiography during operation with these data showed a parallel between the worst angiographic appearances, the poorest scintigraphy images, and the most marked shunts.
View Article and Find Full Text PDFCicatrisation potential was assessed in arteritic patients by an isotopic method employing technetium 99 m to measure cutaneous perfusion pressures. Pressure threshold-values obtained showed that cicatrisation was absent when pressure was below 35 cm of water, that infectious complications developed in half of the cases with values between 35 and 65 cm, and that cicatrisation generally occurred at values above 65 cm.
View Article and Find Full Text PDF(1) Late thrombosis after aorto-iliac revascularisations are infrequent when the operation is correctly performed and controlled by intra-operative angiography. (2) Reoperation after thromboendarterectomy is a difficult procedure requiring great care in the aortic approach. (3) Reoperation after thrombosis of a prosthetic graft is much easier as far as dissection is concerned, usually the upper part of the former prosthesis may be kept, which renders the procedure very much easier.
View Article and Find Full Text PDFJ Cardiovasc Surg (Torino)
September 1979