Search results for "ToF"

An antihypertensive lactoferrin hydrolysate inhibits angiotensin I-converting enzyme, modifies expression of hypertension-related genes and enhances …

2015

This study was aimed to explore whether an antihypertensive lactoferrin hydrolysate (LFH) can inhibit angiotensin I-converting enzyme (ACE) activity and modify the expression of genes related to hypertension in human umbilical vein endothelial cells (HUVEC). LFH induced significant inhibition of ACE activity but it did not affect ACE mRNA levels after 24 h of exposure. LFH treatment significantly affected the expression of genes encoding for proteins involved in nitric oxide pathway such as soluble guanylate cyclase 1 α3 subunit (GUCY1A3; 4.42-fold increase) and nitric oxide synthase trafficking (NOSTRIN; 2.45-fold decrease). Furthermore, expression of the PTGS2/COX-2 gene encoding prostagl…

Moore Automata and Epichristoffel Words

2012

G. Herglotz’ Behandlung von Beschleunigungswellen in seiner Vorlesung «Mechanik der Kontinua» angewandt auf die Stosswellen von Christoffel

1981

Following a lecture delivered by Herglotz in 1925/26 we briefly treat acceleration waves in hyperelastic materials. Our main result is a divergence equation for the squared Euclidean norm of the so-called ‘wave vector’. We then apply Herglotz’ method (devised for acceleration waves) to the propagation of such first order discontinuities in elastic bodies as were treated by Christoffel in [1].

Studying the stability of Solvent Red 19 and 23 as excise duty components under the influence of controlled factors

2020

Abstract In this study, we examine the chemical stability of two disazo dyes, namely Solvent Red 19 and 23 (SR 19 and SR 23), under simulated conditions. Both dyes are considered to be chemically stable under normal exploitation conditions and therefore, are used extensively as excise duty components that enable a rapid visual verification of the tax levels that were imposed on fuel products as well as identifying fuel usage. However, the results from this study confirmed that the colour of the samples that had been fortified with either SR 19 or SR 23 fades under the influence of external conditions such as UV-A irradiation and temperature over time. The UV-A irradiation was the dominant f…

Eliciting Information on the Vulnerability Black Market from Interviews

2010

Threats to computing prompted by software vulnerabilities are abundant and costly for those affected. Adding to this problem is the emerging vulnerability black markets (VBMs), since they become places to trade malware and exploits. VBMs are discussed based on information derived from interviews with security researchers. The effort is enriched by further examination of documents surrounding the disclosure of four selected vulnerabilities cases. The result suggests that the VBMs is bifurcated into two distinct parts; the skilled-hacker and the script-kiddie VBMs with a possible link between them, where the latter become places to sell malware or exploit kits after the zero day vulnerability…

Optical design improvement for noncontact skin cancer diagnostic device

2018

Multispectral diffuse reflectance imaging and autofluorescence photo-bleaching imaging are methods that have been investigated for use in skin disorder diagnostics. In response to the ever-increasing incidence of skin cancer in light skinned populations a new device has been designed incorporating both of these methods. The aim of the study was to create a device that is most efficient in terms of hardware and software parameters for the screening of malignant and benign skin lesions. A set of 525 nm, 630 nm and 980 nm LEDs were used to illuminate the skin area at three wavelengths [1] and a set of 405 nm LEDs were used to induce the skin autofluorescence [2]. For a more homogenous illumina…

POSSIBILI FONTI DI ESPOSIZIONE A FITOFARMACI IN UN CAMPIONE RAPPRESENTATIVO DI POPOLAZIONE NELLA SICILIA OCCIDENTALE

2010

ESPOSIZIONE A RESIDUI DI FITOFARMACI IN POPOLAZIONE GENERALE RESIDENTE IN UN COMUNE SICILIANO: DATI PRELIMINARI

2010

On the Structure of Bispecial Sturmian Words

2013

A balanced word is one in which any two factors of the same length contain the same number of each letter of the alphabet up to one. Finite binary balanced words are called Sturmian words. A Sturmian word is bispecial if it can be extended to the left and to the right with both letters remaining a Sturmian word. There is a deep relation between bispecial Sturmian words and Christoffel words, that are the digital approximations of Euclidean segments in the plane. In 1997, J. Berstel and A. de Luca proved that \emph{palindromic} bispecial Sturmian words are precisely the maximal internal factors of \emph{primitive} Christoffel words. We extend this result by showing that bispecial Sturmian wo…

Federico III e i monaci bianchi:la fondazione di Santa Maria di Altofonte

2011

Nel 1305 Federico III fonda l’abbazia di Santa Maria di Altofonte o de Parco e la affida ai monaci cistercensi. La fondazione avveniva a pochi anni dalla pace di Caltabellotta con l’intento di celebrare un sovrano riabilitato in ambito internazionale e di catalanizzare l’isola, ormai latinizzata ad opera degli ordini mendicanti. La dipendenza del monastero da quello catalano di Santes Creus completava il carattere celebrativo della fondazione sottolineando il legame di Federico III con i suoi progenitori e, quindi, la legittimità dinastica del sovrano, essendo Pietro III sepolto nell’abbazia catalana. Le numerose assegnazioni, i beni, i diritti, le immunità con cui il sovrano dotava nel 130…