Search results for " ASC"
showing 10 items of 168 documents
Dalla parte dell'ascoltatore. Un approccio pragma-retorico alla comprensione
2019
L’intento principale del saggio è mostrare quanto possa essere vantaggioso guardare al fenomeno della comprensione linguistica utilizzando l’apparato concettuale della retorica classica, messo in fruttuoso dialogo con la pragmatica contemporanea. La legittimità di tale operazione si fonda sulla convinzione che sia proficuo estendere lo specifico punto di vista della retorica al discorso ordinario nel suo complesso. Tale estensione non implica in alcun modo negare la specificità del punto di vista retorico sul linguaggio ma mira anzi a sfruttarla, per fare emergere aspetti altrimenti poco valorizzati. È vero, infatti, che la retorica si occupa tradizionalmente di un tipo particolare di disco…
Regional variation of wall shear stress in ascending thoracic aortic aneurysms.
2014
The development of an ascending thoracic aortic aneurysm is likely caused by excessive hemodynamic loads exerted on the aneurysmal wall. Computational fluid-dynamic analyses were performed on patient-specific ascending thoracic aortic aneurysms obtained from patients with either bicuspid aortic valve or tricuspid aortic valve to evaluate hemodynamic and wall shear parameters, imparting aneurysm enlargement. Results showed an accelerated flow along the outer aortic wall with helical flow in the aneurysm center for bicuspid aortic valve ascending thoracic aortic aneurysms. In a different way, tricuspid aortic valve ascending thoracic aortic aneurysms exhibited normal systolic flow without su…
Sprachlernberatung für DaF
2011
Trotz der zunehmenden Etablierung der Sprachlernberatung in der Erwachsenenbildung beschränkt sich die Auseinandersetzung mit dem Thema meist auf einzelne sporadisch veröffentliche Beiträge, die nur begrenzt einen Einblick in die Breite des Tätigkeitsfeldes zulassen. Eine systematische Erfassung davon, wie das Beratungskonzept im Fremdsprachenbereich und speziell in Deutsch als Fremdsprache konkret umgesetzt wird, ist aber nötig, um seine theoretischen Grundlagen zu überprüfen und damit zu der bisher kaum erfolgten empirischen Erforschung dieses Bereichs anzuregen. In der Verschiedenheit der einzelne Beiträge will dieses Buch eine Übersicht darüber geben, was Sprachlernberatung heute in unt…
The Xícaras from Don Hilarion: the public spaces and private homes in the eighteenth century rural
2012
El inventario post mortem y el libro de cuenta y razón del escribano Hilarión Cardona nos proporcionan una abundante información sobre las formas de vida y las actividades de este singular personaje y de su entorno. A su ascenso económico y social ayudará una estudiada política matrimonial, lo que le permitirá hacerse un hueco destacado entre los miembros de la oligarquía local. Lo nutrido y excepcional de su vestuario, junto con la posesión de novedosos objetos, nada comunes al resto de los inventarios de bienes, nos ofrecen una clara imagen del proceso de trasferencia de las formas de vida entre la ciudad y el medio rural. Hilarión sintetiza la emulación de los hábitos de comportamiento d…
Are the Recommended Dietary Allowances for Vitamins Appropriate for Elderly People?
2015
Background: An adequate vitamin intake is essential for a good nutritional status, especially in older women, who are more sensitive to nutritional deficiencies. The American, European and Italian Recommended Dietary Allowances (RDAs) derive mainly from studies on adults, and it is not clear whether they also apply to elderly people. Comparing the RDAs with the actual vitamin intake of a group of healthy older women could help to clarify the real needs of elderly people. Objective: Our aim was to compare the American, European, and Italian RDAs with the actual vitamin intake of a group of healthy older women. Design: This was a cross-sectional study. Participants: The study included 286 hea…
Verapamil Inhibits the Respiration Rate of Cancer Cells
1986
Calcium antagonists have successfully been used in the treatment of hypertension, cardiac arrhythmias and coronary heart disease. Recent evidence has suggested that such agents may also play a role in the treatment of malignant tumors. Verapamil, a calcium entry blocker, has been reported to enhance the cytotoxicity of several anticancer drugs under in vitro- and in vivo-conditions [1–10]. The effects observed could be explained by an enhanced drug accumulation due to a Verapamil-induced inhibition of the drug efflux from the cancer cells.
From ethnobotany to experimental research: the therapeutic properties of Sicilian hellebore
2018
In Sicily, the genus Helleborus (Ranuculaceae) is only represented by H. bocconei subsp. siculus (= H. bocconei subsp. intermedius). In some mountain areas of the Island, the rhizomes of this plant, harvested in a particular month of the year (May) and dried, are used in traditional veterinary practice for treating pneumonia in domestic animals, cattle and horses in particular. The same usage – with rhizomes of other Helleborus species or subspecies – is reported from various other areas of Mediterranean Europe. Phytochemical tests have permitted the isolation and characterization of new biologically active molecules. The extracts of rhizomes and aerial parts of the plant were shown antibac…
2015
Primary intestinal lymphangiectasia (PIL) is a rare disorder, especially in adults. It causes a local disruption of chylus transport and is part of the exudative gastroenteropathies. Conservative therapy includes dietary measures or somatostatin medication. Taking the differential diagnosis of PIL into consideration is a major challenge, since patients suffering from PIL may present with diarrhoea and lymphedema or chylous ascites. This can be explained by the chronic lymphedema of the bowel leading to dilation of the vessels (intraluminal loss) and sometimes even to a rupture (peritoneal loss). Push–pull enteroscopy and capsule endoscopy are the proper interventional diagnostic tools to di…
A green way to gamma-lactams through a copper catalyzed ARGET-ATRC in ethanol and in the presence of ascorbic acid
2011
Abstract A ‘green’ ARGET-ATRC, for the CuCl[PMDETA] catalysed cyclo -isomerization of N -allyl-α-polychloroamides to γ-lactams is described. The process works efficiently (yields 78–96%), uses a bio-solvent, as ethanol, and exploits the reducing feature of ascorbic acid to limit, at a low level (2–4%), the amount of catalyst. To preserve the efficacy of the catalytic cycle, addition of Na 2 CO 3 is essential, which quenches the HCl released during the CuCl[PMDETA] regeneration step. Profitable features of the process are: mild reaction temperatures (25–37 °C), relatively short reaction times (usually 5 h) and low solvent volumes (2 mmol of substrate/mL of ethanol). The method, upon stoichio…
Application of ultrasound as clean technology for extraction of specialized metabolites from stinging nettle (Urtica dioica L.)
2022
Nettle is a highly valued medicinal plant that is still largely neglected, both in terms of nutrition and use for pharmacological purposes. Tinctures, i.e., alcoholic extracts, are becoming increasingly popular nettle products, mainly because they allow better availability of phytochemicals and their stability over a longer period of time. The production of alcoholic extracts is a chemically demanding process that is still usually carried out using conventional techniques, which have numerous drawbacks. The use of green technologies such as ultrasound-assisted extraction (UAE), which is characterized by high efficiency of phytochemical extraction, shorter treatment time, and a much lower en…