196,935 research outputs found
Riqualificazione degli spazi produttivi di una Cantina Vinicola in Langa
No full textprogetto pubblicato su rivist
Rapport sur le Mémoire de M. Maurice Boffa : Forcing et négation de l'axiome de fondement
No full textBurniat Pol, Lepage Théophile Henri Joseph. Rapport sur le Mémoire de M. Maurice Boffa : Forcing et négation de l'axiome de fondement. In: Bulletin de la Classe des sciences, tome 58, 1972. p. 945
Order parameter variation through the C2/m-P21/m phase transition in cummingtonite
No full textThe C2/m-P21/m phase transition in natural cummingtonites, with different compositions, has been investigated by single-crystal X-ray diffraction and powder absorption IR spectroscopy. Variations in the intensity of type b (superlattice) reflections above room temperature are consistent with the transition being thermodynamically continuous and conform to the solution to a 2-4-6 Landau potential. Parameters extracted from IR spectra collected both above and below room temperature Suggest that the local structural evolution differs slightly from the average macroscopic behavior observed by X-ray diffraction. Changes in wavenumber of an isolated absorption band at ~1130 cm-1 and changes in the integrated intensity of a band at ~760 cm(-1) can be described by the solution to a 2-4 Landau potential with saturation below room temperature. Absorption bands due to O-H vibration and libration, however, appear to show discontinuities in the variation of their wavenumbers at the transition point. A local mechanism for the transition might involve a framework distortion providing the main driving force. with coupling to an order-disorder process for the protons
Il gender equality plan nelle università italiane. Analisi evolutiva del modello in relazione al Gender Budgeting
No full text
Renal dysfunction is a confounder for plasma natriuretic peptides in detectingheart dysfunction in uremic and idiopathic dilated cardiomyopathies.
No full textClin Chem. 2007 Dec;53(12):2097-104. Epub 2007 Oct 12.
Renal dysfunction is a confounder for plasma natriuretic peptides in detecting heart dysfunction in uremic and idiopathic dilated cardiomyopathies.
Codognotto M, Piccoli A, Zaninotto M, Mion M, Plebani M, Vertolli U, Tona F, Ruzza L, Barchita A, Boffa GM.
Source
Division of Nephrology, University Hospital, University of Padova, Italy.
Abstract
BACKGROUND:
The diagnostic value of natriuretic peptides in uremic cardiomyopathy has not been defined, nor has the effect of a hemodialysis (HD) session on peptides.
METHODS:
We performed an observational study of 100 white adult outpatients in New York Heart Association class I-II, with neither diabetes nor ischemic heart disease, 50 of whom had idiopathic dilated cardiomyopathy (DCM) and 50 of whom had uremic cardiomyopathy and were undergoing HD. We measured plasma N-terminal proB-type natriuretic peptide (NT-proBNP), BNP, and atrial natriuretic peptide (ANP) both before and after a dialysis session. Doppler echocardiograms were evaluated. We performed multiple regression analysis on the logarithm of peptide concentrations using clinical, laboratory, and echocardio-Doppler data as explanatory variables.
RESULTS:
Mean peptide concentrations were higher in the HD group, with an HD:DCM ratio of 25 for NT-proBNP and 5 for BNP and ANP. Peptides were correlated with each other (r > 0.85). After HD, NT-proBNP significantly increased by 14%, BNP decreased by 17%, and ANP decreased by 56%. Predialysis concentrations correlated with postdialysis values (r > 0.85). A multiple regression equation significantly fitted the observed peptide concentrations, both pre- and postdialysis, using the same set of 4 variables: disease group (DCM or HD), diastolic pattern, left atrial volume, and body mass index.
CONCLUSIONS:
Renal dysfunction was a confounder for natriuretic peptides, which were present in higher concentrations in the uremic patients with milder cardiac dysfunction than in those with idiopathic DCM without renal dysfunction. Left diastolic function pattern and atrial volume were cardiac determinants of peptide concentrations in DCM and HD
The Impact of Search Cost Reduction on Seasonality
No full textThis study explores how online booking affects seasonality, measured as the variation in hotel bed-places net occupancy rate between peak and off-peak periods. We first develop a formal model illustrating that, as a result of the reduction in search costs brought about by the internet, competitive pressure strengthens. This effect is stronger in the peak period than off-peak, thus leading to an increase in seasonality associated to online booking. We then test our finding in a sample of 18 countries over the 1997–2007 span; the empirical results support the notion that the use of the internet causes an increase in seasonality.
A set of policy implications conclude the work
Control method of tires or semi-finished products in tire production line, involves analyzing respective control signal on surface portion for detecting possible presence of surface flaws
No full textNOVELTY - The control method involves detecting optical intensity of light radiation, calculating number of values representative equivalent number of components of strokes vector, and generating, for surface portion, a respective control signal representative of each value representative of components of Stokes vector. The respective control signal on surface portion is analyzed for detecting the possible presence of surface flaws.
USE - Control method of tires or semi-finished products in tire production line.
ADVANTAGE - Controls the quality of the tires or semi-finished products in production process, thus obtaining acceptable times and in a precise and reliable manner, a control of the surface of the tires or semi-finished products in production process.
DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:
(1) a control apparatus; and
(2) a production line.
DESCRIPTION OF DRAWING(S) - The drawing shows the schematic block diagram of apparatus for controlling tires.
Control apparatus (100)
Semi-finished product or Tire (101)
Support plane (120)
Light source (131)
Detection system (140)
Processing unit (150
Kleene algebras as sequences of orthopairs
No full textWe study sequences of approximations of sets given by refining tolerance relations on the universe, and we show that such sequences can be equipped with a structure of finite centered Kleene algebra satisfying the interpolation property. We further show that every such Kleene algebra is isomorphic to the algebra of sequences of approximations of subsets of a suitable universe
The high-pressure P21/c - C2/c phase transition for the CMS (CaO-MgO-SiO2) clinopyroxenes
No full textJournal of Conference Abstract
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