Search results for "GOLD"
showing 10 items of 1320 documents
Martín I y la aparición del gótico internacional en el reino de Valencia
2003
This article focuses on the real presence of Martin I in the Kingdom of Valencia during a long period of time. This fact supposed the arrival and establishment of flemish, Italian painters and the own Crown of Aragón in the city of Turia. Orders not only by Martin I, first as a prince and later as the king, and close members of his court, but also by the own City Council allowed Valencia to be one of the most interesting cities for understanding the development of the International Gothic Style in the Crow of Aragon.<br><br>La presencia de Martín I en el reino de Valencia durante largos periodos de tiempo supuso un atractivo para el establecimiento de pintores flamencos, italian…
Bronhiālās astmas un HOPS ārstēšanai izmantojamo medikamentu aprite aptiekās 2016.-2018. gadā
2019
Pasaulē ar katru gadu pieaug cilvēku skaits ar diagnosticēto elpošanas sistēmas saslimstību. Latvijā šobrīd ar bronhiālo astmu slimo 2-5% no kopējā iedzīvotāju skaita, HOPS diagnoze 2017.gadā oficiāli apstiprināta 25 000 gadījumu (LAAB,2018). Darba mērķis bija noskaidrot bronhiālās astmas un HOPS ārstēšanā izmantojamo medikamentu pieprasījuma, izrakstīšanas, apgrozījuma tendences Latvijas aptiekās par periodu 2016. - 2018.g. Latvijā pašreizējo medikamentozās terapijas atbilstību bronhiālās astmas un HOPS ārstēšanā, salīdzinot ar šī brīža Pasaules Astmas iniciatīvas organizācijas (GINA) un Hroniskas obstruktīvas plaušu slimības globālās iniciatīvas (GOLD) 2018 izstrādātajām vadlīnijām. Tika …
Photochemical Synthesis of Water-Soluble Gold Nanorods: The Role of Silver Ions in Assisting Anisotropic Growth
2009
The role of Ag+ ions in the ultraviolet-driven photochemical synthesis of Au nanorods (NRs) in aqueous surfactant mixtures has been investigated in order to elucidate the mechanism that drives anisotropic nanoparticle growth. The samples, grown in the presence of varying amounts of Ag+ ions for scheduled irradiation times, have been characterized by ultraviolet−visible−near infrared (UV−vis−NIR) absorption spectroscopy, analytical transmission electron microscopy (ATEM), inductively coupled plasma atomic emission spectroscopy (ICP-AES), and extended X-ray absorption fine structure (EXAFS) measurements. Moreover, the time evolution of size and shape distribution has been investigated by stat…
Factor analysis-based approach for early uptake automatic quantification of breast cancer by 18F-FDG PET images sequence
2014
International audience; Factor Analysis of Medical Image Sequences (FAMIS) is recognized as one pioneer successfully used approach for analyzing especially dynamic images' sequence for estimating kinetics and associated compartments having a physiological meaning. Some studies tried to extend the exploring of this approach to analyze Positron Emission Tomography (PET) image modality for dynamic sequences. PET images with 18F-fluorodesoxyglucose (18F-FDG) is the gold standard for in vivo, evaluation of tumor glucose metabolism and is widely used in clinical oncology. In this paper, a novel approach is proposed to obtain an automated quantification method for early accumulation of 18F-FDG tra…
Small Gold Nanoparticles Synthesized with Sodium Citrate and Heavy Water: Insights into the Reaction Mechanism
2010
5 páginas, 3 figuras, 1 esquema.
Nothing matters: the significance of the unidentifiable, the superficial and nonsense
2019
ABSTRACT Purpose: The aim of this study is to explore the ways in which “small things” may be of importance for people with mental health difficulties. Method: Empirical material from three different studies was reanalysed through a phenomenological, dialogical, approach. Results: We discovered some paradoxical aspects of small things: i.e., they could be about “something” that was difficult or even impossible to identify. The unidentifiable could be about bodily, sensual experiences that are superficial (i.e., belonging to the surface). The interaction with others highlighted as significant could be about doing something fun, talking nonsense or kidding around, and hence not at all about m…
The oxamate route, a versatile post-functionalization for metal incorporation in MIL-101(Cr): Catalytic applications of Cu, Pd, and Au
2013
Abstract A new consecutive post-functionalization method has been developed for the inclusion of additional metal functionalities in Metal Organic Frameworks (MOFs) through oxamate as chelating agent. This may result in catalytic centers of metal–organic complexes or in controlled formation of metal nanoparticles, demonstrated for Cu, Pd and Au, in the highly stable MIL-101(Cr) framework. In a first post-synthesis step, reduction of the NO 2 -MIL-101(Cr) leads to the formation of NH 2 -MIL-101(Cr). The second functionalization consists of a straightforward condensation of the amino groups of the ligand with ethyl chloro-oxoacetate resulting in the formation of free oxamates attached to the …
Quality-based assessment of camera navigation skills for laparoscopic fundoplication.
2020
Summary Laparoscopic fundoplication is considered the gold standard surgical procedure for the treatment of symptomatic hiatus hernia. Studies on surgical performance in minimally invasive hiatus hernia repair have neglected the role of the camera assistant so far. The current study was designed to assess the applicability of the structured assessment of laparoscopic assistance skills (SALAS) score to laparoscopic fundoplication as an advanced and commonly performed laparoscopic upper GI procedure. Randomly selected laparoscopic fundoplications (n = 20) at a single institute were evaluated. Four trained reviewers independently assigned SALAS scoring based on synchronized video and voice rec…
Elementary Goldstone Higgs boson and dark matter
2015
We investigate a perturbative extension of the Standard Model featuring elementary pseudo-Goldstone Higgs and dark matter particles. These are two of the five Goldstone bosons parametrising the SU(4)/Sp(4) coset space. They acquire masses, and therefore become pseudo-Goldstone bosons, due to the embedding of the Yukawa and the electroweak gauge interactions that do not preserve the full SU(4) symmetry. At the one-loop order the top corrections dominate and align the vacuum in the direction where the Higgs is mostly a pseudo-Goldstone boson. Because of the perturbative and elementary nature of the theory, the quantum corrections are precisely calculable. The remaining pseudo-Goldstone boson …
Finite size spectrum of SU(N) principal chiral field from discrete Hirota dynamics
2016
Using recently proposed method of discrete Hirota dynamics for integrable (1+1)D quantum field theories on a finite space circle of length L, we derive and test numerically a finite system of nonlinear integral equations for the exact spectrum of energies of SU(N)xSU(N) principal chiral field model as functions of m L, where m is the mass scale. We propose a determinant solution of the underlying Y-system, or Hirota equation, in terms of determinants (Wronskians) of NxN matrices parameterized by N-1 functions of the spectral parameter, with the known analytical properties at finite L. Although the method works in principle for any state, the explicit equations are written for states in the …