04); with BAV, the degree of regurgitation at preoperative echocardiography (P = 0.001).
Conclusions: Waistcoat aortoplasty proved a safe and durable treatment for patients with asymmetric non-syndromic non-familial ascending aorta dilatation. The technique showed https://www.selleckchem.com/products/ro-3306.html its best durability in aortic stenosis patients and in patients with normofunctional BAV.”
“In the past decade, we have witnessed rapid development of direct-injection
mass spectrometric (DIMS) technologies that combine ever-improving mass and time resolution with high sensitivity and robustness. Here, we review some of the most significant DIMS technologies, which have been applied to rapid monitoring and quantification of volatile organic compounds (VOCs) and biogenic VOCS (BVOCs). They include MS-e-noses, atmospheric-pressure chemical ionization (APCI), proton-transfer-reaction mass spectrometry (PTR-MS), and selected ion-flow-tube mass spectrometry
(SIFT-MS). DIMS-based MS-e-noses provide the possibility to screen large sample VX-809 ic50 sets and may yield rich analytical information. APCI is a widespread ionization method and pioneered DIMS in environmental and flavor-release applications. SIFT-MS and PTR-MS allow better control of precursor-ion generation and hence of the ionization process. SIFT-MS puts the focus on control of the ionization process, while PTR-MS does so on sensitivity. Most (B)VOCs of interest can be efficiently detected and often identified by DIMS, thanks also to the possibility of switching between different precursor ions p38 MAPK pathway and the recent realization of time-of-flight-based equipments. Finally, we give selected examples of applications for each of the key technologies, including research in food-quality control (MS-e-nose), flavor release (APCI), environmental sciences (PTR-MS) and health sciences (SIFT-MS). (C) 2011 Elsevier Ltd. All rights reserved.”
“Apples have been identified as one of the main dietary sources of antioxidants,
namely phenolic compounds. Apple peel constitutes a waste of dried apple manufacture, although it contains more phenolics than the fruit pulp. This fraction can be preserved by drying. However, it is important to consider that the dehydrated product obtained requires protection. The objective of this research was to study the stability of drum dried apple peel powder in order to select the suitable packing material: high-density polyethylene (HDPE) or metalized films of high barrier (MFHB). The samples were stored under accelerated (38 degrees C, 90% RH) and conventional (25, 10 and 4 degrees C, 60-70% RH) conditions during 120 days. Kinetic modelings for the attributes degradation were evaluated. Total phenolics and moisture levels are largely dependent on the type of packing and storage conditions. The apple peel powder samples packed in MFHB pouches preserved most of the phenolic compounds, and exhibited lesser moisture increase.