Search results for "deriva"

I credit derivatives nell’economia dei sistemi finanziari tra innovazione e criticità

2011

Il lavoro è volto a comprendere il ruolo degli strumenti credit derivatives nell’economia dei sistemi finanziari. I credit derivatives rappresentano una significativa forma di innovazione finanziaria che incide direttamente sull’attività degli intermediari finanziari e, in particolare, bancari. Il ricorso al mercato dei credit derivatives rende possibile il trasferimento integrale o parziale dei rischi di credito senza il contestuale trasferimento delle singole esposizioni creditizie. Ciò dischiude una varietà di scelte aziendali di de-integrazione della catena del valore dell’intermediazione creditizia e di diversificazione del portafoglio crediti che, tuttavia, non sempre conducono ad una…

Efficacy and safety of photodynamic therapy with RLP068 for diabetic foot ulcers: a review of the literature and clinical experience

2020

This article is the second part of a literature review concerning diabetic foot ulcers (DFUs) and the use of antimicrobial photodynamic therapy (PDT). PDT involves the topical application of a photosensitiser into the tissue, followed by illumination that induces the formation of reactive oxygen species (ROS). PDT provides bacterial inactivation and promotes wound healing, and it can be used to manage the infection and microbial colonisation of DFUs. It has pivotal advantages in comparison with chemotherapeutics, such as no potential to induce resistance, and a wide spectrum of activity. Tetracationic Zn(II) phthalocyanine derivatives have been developed for PDT. Among these, we would like …

L'analyse morphologique et sémantique des anglicismes dans la presse française contemporaine

1999

Effect of Heat on the Adsorption Properties of Silica Gel

2012

Published version of an article in the journal: International Journal of Engineering and Technology. Also available from the publisher at: http://www.ijetch.org/papers/416-T886.pdf Open access. Adsorption properties of silica gel have been attributed to the surface hydroxyl groups of silica gel. Some hydroxyl groups are free standing and called free silanol groups. Some are hydrogen bonded to neighbouring silanol groups. Christy has shown that a high silanol number and a balanced concentration proportionality between these two different types of hydroxyl groups is necessary for effective adsorption of water molecules. Thermal treatment of silica gel samples alters the proportions of these g…

Derivation in Finnish upper secondary school English L2 textbooks

2016

Sananmuodostus on keskeinen taito kielten oppijalle; se auttaa paitsi sanavaraston laajentamisessa, myös edistää oppijan lukutaitoa vieraskielistä tekstiä lukiessa. Tästä syystä on tärkeää tarkastella, kuinka sananmuodostusta opetetaan viimeistään toisen asteen opetuksessa, esimerkiksi lukiossa. Tässä tutkimuksessa tarkastelukeinoksi valikoitui lukiotason oppikirjojen tutkiminen, koska erityisesti kielten opetuksessa oppikirjoilla on todella suuri rooli opetuksen sisältöjä ja muotoa koskevia valintoja tehtäessä. Tavoitteena oli selvittää, kuinka lukiotason oppikirjoissa opetetaan sananmuodostamisen tuottoisinta osa-aluetta, sananjohtamista, ja erityisesti millaisia sitä käsitteleviä harjoit…

Advantages of Hyaluronic Acid and Its Combination with Other Bioactive Ingredients in Cosmeceuticals

2021

This study proposes a review on hyaluronic acid (HA) known as hyaluronan or hyaluronate and its derivates and their application in cosmetic formulations. HA is a glycosaminoglycan constituted from two disaccharides (N-acetylglucosamine and D-glucuronic acid), isolated initially from the vitreous humour of the eye, and subsequently discovered in different tissues or fluids (especially in the articular cartilage and the synovial fluid). It is ubiquitous in vertebrates, including humans, and it is involved in diverse biological processes, such as cell differentiation, embryological development, inflammation, wound healing, etc. HA has many qualities that recommend it over other substances used…

Discovery of a new class of sortase a transpeptidase inhibitors to tackle gram-positive pathogens: 2-(2-phenylhydrazinylidene)alkanoic acids and rela…

2016

A FRET-based random screening assay was used to generate hit compounds as sortase A inhibitors that allowed us to identify ethyl 3-oxo-2-(2-phenylhydrazinylidene)butanoate as an example of a new class of sortase A inhibitors. Other analogues were generated by changing the ethoxycarbonyl function for a carboxy, cyano or amide group, or introducing substituents in the phenyl ring of the ester and acid derivatives. The most active derivative found was 3-oxo-2-(2-(3,4dichlorophenyl)hydrazinylidene)butanoic acid (2b), showing an IC50 value of 50 µM. For a preliminary assessment of their antivirulence properties the new derivatives were tested for their antibiofilm activity. The most active compo…

Determination of glyphosate and its metabolite aminomethylphosphonic acid in fruit juices using supported-liquid membrane preconcentration method wit…

2005

Abstract The application of supported-liquid membrane (SLM) technique for effective extraction of N -(phosphonomethyl)glycine (glyphosate) and its primary metabolite aminomethylphosphonic acid (AMPA) from juices (orange, grapefruit, apple and blackcurrant) in combination with HPLC-UV detection after derivatization with p -toluenesulphonyl chloride (TsCl) is presented. The influence of various parameters such as the composition of acceptor phase, flow-rate, concentration of analytes, on the performance of extraction procedure, was studied. It was shown that by appropriate manipulation of SLM parameters the level of detection could be significantly improved. The influence of SLM conditions on…

Contratos de permuta financiera ante el impuesto sobre el valor añadido

2021

El estudio de la tributación en el impuesto sobre el valor añadido de los contratos de permuta financiera, exige el previo conocimiento de estos derivados financieros. Para ello acudimos a la jurisprudencia del Tribunal de Justicia de la Unión europea y a las nociones de la Contabilidad internacional

Errors Generated by Uncertain Data

2014

In this chapter, we study effects caused by incompletely known data. In practice, the data are never known exactly, therefore the results generated by a mathematical model also have a limited accuracy. Then, the whole subject of error analysis should be treated in a different manner, and accuracy of numerical solutions should be considered within a framework of a more complicated scheme, which includes such notions as maximal and minimal distances to the solution set and its radius.