Search results for " DIP"

Johnson-Nyquist Noise Effects in Neutron Electric-Dipole-Moment Experiments

2021

Magnetic Johnson-Nyquist noise (JNN) originating from metal electrodes, used to create a static electric field in neutron electric-dipole-moment (nEDM) experiments, may limit the sensitivity of measurements. We present here the first dedicated study on JNN applied to a large-scale long-measurement-time experiment with the implementation of a co-magnetometry. In this study, we derive surface- and volume-averaged root-mean-square normal noise amplitudes at a certain frequency bandwidth for a cylindrical geometry. In addition, we model the source of noise as a finite number of current dipoles and demonstrate a method to simulate temporal and three-dimensional spatial dependencies of JNN. The c…

Shape staggering of midshell mercury isotopes from in-source laser spectroscopy compared with density-functional-theory and Monte Carlo shell-model c…

2019

Neutron-deficient Hg177-185 isotopes were studied using in-source laser resonance-ionization spectroscopy at the CERN-ISOLDE radioactive ion-beam facility in an experiment combining different detection methods tailored to the studied isotopes. These include either α-decay tagging or multireflection time-of-flight gating for isotope identification. The endpoint of the odd-even nuclear shape staggering in mercury was observed directly by measuring for the first time the isotope shifts and hyperfine structures of Hg177-180. Changes in the mean-square charge radii for all mentioned isotopes, magnetic dipole, and electric quadrupole moments of the odd-A isotopes and arguments in favor of I=7/2 s…

Un’introduzione. Psicodinamica del gioco d’azzardo

2013

Making bishops in the Malta of the knights (1530-1798). An international game of parties, patronage and diplomacy

2011

Charles V’s donation of Malta to the Order of St. John in 1530 also established the procedure for appointment of the bishop of the island, whose episcopal seat since the time of the Norman conquest was subject to royal patronage, and thus to the King of Sicily’s right of presentation: the Grand Master would propose to the Spanish king, through the viceroy of Sicily, a ranking of three candidates, previously approved by the Council of the Order, belonging to the rank of convent chaplain and which contained at least one Sicilian. From that time until the expulsion of the knights from the island after the French occupation (1798), 15 bishops were chosen for the Maltese episcopal see. In these …

Amuleto celtíbero con leyenda, un ejemplo inédito en la epigrafía ibérica

2014

Se presenta un ejemplo inédito de epigrafía ibéric a en una peculiar «chapa» lenticular de bronce. Descontextualizada arqueológicamente, la pieza presenta tres perforaciones, las cuales indicarían que se hicieron para portarla col gada o cosida a modo de amuleto. An unpublished sample of Iberian epigraphy on an o dd bronze, lenticular token is introduced. Found out of an archaeological context, this piece shows three holes which suggest that it was used as a hanging or sawed amulet

Extraction of peptides from body fluids using supported liquid membranes

2008

Sample pre-treatment is a very important step in many analytical procedures, especially when the analyte is presented in low concentration in complex sample matrices. In this paper, potential using of the supported liquid membrane (SLM) technique as a sample preparation step in order to isolate, pre-concentrate and separate small peptides and phosphono dipeptides from aqueous solutions and body fluids is discussed. An influence of various parameters including carrier type, donor and acceptor phase compositions, presence of salts and proteins in analysed samples on extraction efficiency and selectivity is presented. Additionally, comparison of SLM extraction efficiency from aqueous samples a…

Realization of polyaspartamide-based nanoparticles and in vivo lung biodistribution evaluation of a loaded gucocorticoid after aerosolization in mice

2016

Abstract In this study, novel polymeric nanoparticles (NPs) were developed and their potential as carriers for beclomethasone dipropionate (BDP) into the lung after aerosolization was demonstrated by in vivo studies in mice. In particular, these NPs were obtained starting from two polyaspartamide-based copolymers which were synthesized by chemical reaction of α,β-poly(N-2-hydroxyethyl)- dl -aspartamide (PHEA) and its pegylated derivative (PHEA-PEG2000) with poly(lactic acid) (PLA). To obtain nanosized particles, the high pressure homogenization (HPH)—solvent evaporation method was followed by using an organic phase containing both PHEA-PLA and PHEA-PEG2000-PLA (at a weight ratio equal to 1:…

Effect of Hot Dip Galvanized Steel Surface Chemistry and Morphology on Titanium Hexafluoride Pretreatment

2017

Titanium hexafluoride pretreatments are known to improve paint adhesion and function as a barrier between the coating and the hot dip galvanized (HDG) steel surface. Interactions at the zinc/pretreatment interface are of utmost importance for the formation of pretreatment layers and the corrosion resistance of color coated hot dip galvanized steels. Removal rate of inert aluminum oxide from HDG steel samples by chemical dissolution was studied. XPS measurements showed that the surface Al2O3 layer thickness decreased rapidly already at mild alkaline cleaning, while complete removal of Al required severe etching. Low reactivity of an Al2O3-rich surface was confirmed by impaired formation of a…

Effect of an insect growth regulator (halofenozide) on the cuticular hydrocarbons of Culex pipiens larvae

2013

The cuticular hydrocarbons of the fourth-instar larvae of Culex pipiens aged one and six days were analysed by gas chromatography and gas chromatography-mass spectrometry. The effect of an insect growth regulator (halofenozide = RH-0345) on the cuticular hydrocarbons was evaluated using newly moulted fourth-instar larvae of C. pipiens, at the lethal concentrations (LC50 = 12.58 and LC90 = 28.58 mu g/l). A previous study revealed that RH-0345 is toxic to larvae of C. pipiens by induction of precocious larval moulting. Several cuticular hydrocarbons (CHCs) were identified and many of the other compounds remained unknown. Our data show that the CHC classes consisted of n-alkanes (C23-C29) and …

Latvijas simtgade kā valsts tēla veidošanas līdzeklis

2019

Maģistra darbā “Latvijas simtgade kā valsts tēla veidošanas līdzeklis” tiek pētīts jautājums, vai un kā Latvijas simtgades publiskās diplomātijas pasākumu kopums ietekmē Latvijas tēla veidošanos. Pēc veikto pētījumu par Latvijas tēlu izpētes, tika secināts, ka trūkst pētījumu un tajos padziļinātas izpratnes par valsts tēla un zīmola veidošanu un abu terminu būtiskajām atšķirībām, kā arī zīmolvedības koncepta nozīmi attiecībā pret valsts tēla veidošanu. Līdz ar to nav bijis pētījumu par valstiski nozīmīgu pasākumu kopuma – publiskās diplomātijas – ietekmi uz valsts tēlu. Latvija oficiāli neveic mediju monitoringu ārzemēs un neizvērtē, kā konkrēts notikumu kopums ietekmē valsts tēlu, tāpēc ir…