Search results for "EWS"
showing 10 items of 1197 documents
White Light-Emitting Electrochemical Cells Based on the Langmuir–Blodgett Technique
2014
Light-emitting electrochemical cells (LECs) showing a white emission have been prepared with Langmuir-Blodgett (LB) films of the metallosurfactant bis[2-(2,4-difluorophenyl)pyridine][2-(1-hexadecyl-1H-1,2,3-triazol-4-yl)pyridine]iridium(III) chloride (1), which work with an air-stable Al electrode. They were prepared by depositing a LB film of 1 on top of a layer of poly(N,N'-diphenyl-N,N'-bis(4-hexylphenyl)-[1,1'-biphenyl]-4,4'-diamine (pTPD) spin-coated on indium tin oxide (ITO). The white color of the electroluminescence of the device contrasts with the blue color of the photoluminescence of 1 in solution and within the LB films. Furthermore, the crystal structure of 1 is reported togeth…
Darbības vārdu savienojumi ar postpozīcijām rakstos par ekonomiku
2016
Raksti par ekonomiku var saturēt bagātinātu un tajā pašā laikā, sarežģītu valodas lietojumu, turpretim, darbības vārdi ar postpozīcijām ir veidoti, lai valodu padarītu viegli lietojamu un saprotamu. Šī bakalaura darba tēma ir darbības vārdi ar postpozīcijām rakstos par ekonomiku. Šī darba galvenais mēķis ir noteikt kāda tipa un cik bieži darbības vārdi ar postpopzīcijām ir izmantoti rakstos par ekonomiku. Šis pētījums veikts analizējot teoriju par dabrības vārdu ar postpozīcijām lietojumu, kā arī to lietošanas biežumu rakstos par ekonomiku. Praktiskās daļas pamatā ir 20 raksti no tiešsaitē aplūkotajiem ziņu avotiem: Reuters, Guardian, Telegraph, BBC. Pētījuma rezultāti pierādīja, ka darbība…
The linguistic representation of gender violence in (written) media discourse
2014
‘Woman’ is a key social actor, and a central conceptualization, in the construction of media discourses of gender-based violence. Scholarly research at the turn of the 21st century (Bengoechea 2000; Lledó 2002; Fernández Díaz 2003; Jorge 2004) showed that in the Spanish press, media discourses had a tendency to naturalize male aggression not as violence but as part of the (private) sexual arrangement between the sexes. In this paper we explore the treatment of the phrasemujer maltratada(EN ‘battered woman’) in intimate partner violence newspaper articles from 2005 to 2010. Our aims are: (i) to account for the discursive representation of violence against women (VAW) in Spanish contemporary …
Analytic solutions and Singularity formation for the Peakon b--Family equations
2012
This paper deals with the well-posedness of the b-family equation in analytic function spaces. Using the Abstract Cauchy-Kowalewski theorem we prove that the b-family equation admits, locally in time, a unique analytic solution. Moreover, if the initial data is real analytic and it belongs to H s with s>3/2, and the momentum density u 0-u 0, xx does not change sign, we prove that the solution stays analytic globally in time, for b≥1. Using pseudospectral numerical methods, we study, also, the singularity formation for the b-family equations with the singularity tracking method. This method allows us to follow the process of the singularity formation in the complex plane as the singularity a…
Angular shift of an electromagnetic beam reflected by a planar dielectric interface
1989
A mathematical procedure for obtaining theoretically an expression for the fields of a beam reflected by a planar interface separating two lossless, linear, isotropic, homogeneous media is presented. Comparison of this expression with that obtained when the beam undergoes reflection from a perfect conductor leads to the expression for the angular shift of the beam reflected by a planar dielectric interface. The cases of normal and parallel polarization of a microwave beam are considered. In the last case, a complete study for angles of incidence far and near the Brewster angle is made.
Brewster angle microscopy and X-ray GID studies of morphology and crystal structure in monolayers of N-tetradecyl-γ,δ-dihydroxypentanoic acid amide
1997
First-order phase transitions from the low-density fluidlike phase to the condensed phase of monolayers of N-tetradecyl-γ,δ-dihydroxypentanoic acid amides at the air−water interface have been studied by π−A isotherms, Brewster angle microscopy (BAM), and synchrotron X-ray grazing incidence diffraction (GID). The thermodynamic differences between enantiomeric and racemic monolayers are too small to be measured. However, chiral discrimination is observable in the macroscopic domain morphology by BAM. The domains of the condensed phase grow dendritically. The characteristic shapes of domains of the pure S and R enantiomers are mirror images of each other. The domains of the racemic mixture are…
Modic changes-Their associations with low back pain and activity limitation: A systematic literature review and meta-analysis.
2018
Background Previous systematic reviews have reported positive associations between Modic changes (MCs) and low back pain (LBP), but due to their narrow scope and new primary studies, there is a need for a comprehensive systematic review. Our objectives were to investigate if MCs are associated with non-specific LBP and/or activity limitation and if such associations are modified by other factors. Methods A protocol for this review was registered at PROSPERO prior to commencing the work (PROSPERO record: CRD42015017350). The MEDLINE, CINAHL and EMBASE databases were searched for relevant studies from first record to June 15th 2016. Prospective or retrospective cross-sectional cohort studies …
John Bates Clark on trusts: New light from the Columbia archives
2005
Public concern over the so called “trust problem” in the United States between the end of the nineteenth century and 1914, the year of the passage of the Clayton and Federal Trade Commission (FTC) Acts, was reflected in the considerable contemporary literature on the subject. Not surprisingly, professional economists actively participated in this debate. Their thinking directly and indirectly influenced the legislation of 1914 in a way that cannot be said of the Sherman Act of 1890 (Mayhew 1998). A survey of the most important of these professional writings shows that, among the several voices animating the discussion, John Bates Clark's was perhaps the most influential. In this connection,…
Narzędzia kształtowania polskiej kultury muzycznej w dobie socrealizmu
2020
Realizm socjalistyczny, zwany prościej socrealizmem, to doktryna ideologiczno- estetyczna wspomagająca propagandę krajów komunistycznych. Jej korzenie sięgają Związku Radzieckiego, gdzie stanowiła jedyną słuszną metodę tworzenia sztuki od lat 30. XX wieku aż po kres mocarstwa, czyli rok 1991. Proces wprowadzania jedynej słusznej metody twórczej rozpoczęto w Polsce w 1949 roku. Władza organizowała zjazdy literatów, plastyków, architektów, filmowców, a także muzyków. Doktryna obowiązywała aż do 1956 roku (roku śmierci prezydenta Polski Ludowej Bolesława Bieruta), choć naciski zmalały wraz ze śmiercią Stalina w roku 1953. Władza komunistyczna dysponowała wieloma narzędziami mającymi skłonić ko…
Spin Doctors in the United States, Great Britain, and Germany: Metacommunication about Media Manipulation
2001
This study develops a new concept in political communication theory called metacommunication. It argues that metacommunication (1) describes a new, third stage in election coverage after issue and strategy coverage; (2) reflects the mass media's new role as a political institution in the third age of political communication; and (3) can be seen as the news media's response to a new, third force in news making: professional political PR. Metacommunication is defined as the news media's self-referential reflections on the nature of the interplay between political public relations and political journalism. While metacoverage can take two forms, self-referential news and process news, the pres…