Results 81 to 90 of about 6,123,496 (258)

A new structural modification of stannite [PDF]

open access: yes, 2016
[EN]: The crystal structure of the phase a-SnCu2FeS4, has been examined by EDX and electron and X-ray difraction techniques. This compound crystallizes in the tetragonal space group P4 (No.
Gómez-Romero, P.   +4 more
core   +1 more source

Marginal Reputation

open access: yesEconometrica, Volume 93, Issue 6, Page 2007-2042, November 2025.
We study reputation formation where a long‐run player repeatedly observes private signals and takes actions. Short‐run players observe the long‐run player's past actions but not her past signals. The long‐run player can thus develop a reputation for playing a distribution over actions, but not necessarily for playing a particular mapping from signals ...
Daniel Luo, Alexander Wolitzky
wiley   +1 more source

Síntesis y caracterización del nitruro ternario de titanio y vanadio (TixV1-xN) [PDF]

open access: yes, 2011
En el presente trabajo se aborda la síntesis del nitruro ternario de titanio y vanadio por reducción carbotérmica de una mezcla de óxidos o bien por nitruración directa de la mezcla de metales, en todo el rango de composiciones empleando el método de ...
Alcalá, M.D.   +3 more
core  

Satisfacción laboral en el Servicio de Rayos X de una Institución Privada de Salud de Lima, Nivel III-4, 2015

open access: yes, 2015
Objetivo: Describir la satisfaccion laboral en el Servicio de Rayos X de una institucion privada de salud de Lima, nivel III-2, en el ano 2015.Material y Metodos:  La presente investigacion es de tipo cuantitativo, descriptivo, prospectivo y de corte ...
A. Meza   +2 more
semanticscholar   +1 more source

Nonrecursive dynamic incentives: A rate of convergence approach

open access: yesTheoretical Economics, Volume 20, Issue 4, Page 1461-1520, November 2025.
In repeated principal‐agent problems and games, more outcomes are implementable when performance signals are privately observed by a principal or mediator with commitment power than when the same signals are publicly observed and form the basis of a recursive equilibrium. We investigate the gains from nonrecursive equilibria (e.g., “review strategies”)
Takuo Sugaya, Alexander Wolitzky
wiley   +1 more source

Erupciones de rayos gamma [PDF]

open access: yes, 2013
Las erupciones de rayos gamma son eventos transitorios, lo que significa que ocurren en un período de tiempo corto y luego se apagan. Durante el tiempo que están encendidos, producen más radiación gamma que el resto del universo.
Vieyro, Florencia
core  

Análisis fisicoquímico del MTA Angelus® y Biodentine® mediante difracción de rayos X, espectrometría de energía dispersiva, fluorescencia de rayos X, microscopio electrónico de barrido y espectroscopía de rayos infrarrojos

open access: yes, 2015
El proposito de este estudio fue caracterizar los componentes de los cementos comerciales para uso en odontologia MTA Angelus® Blanco(Angelus, Lodrina, Parana Brasil) y de BiodentineTM (Septodont, Saint-Maur-des Fosses, Francia) mediante Microscopia ...
Alejandra Citlalli Rodríguez Rocha   +3 more
semanticscholar   +1 more source

The Lyon Mint in the Roman Tomares Hoard (Seville): Some Considerations on Its Metallic Composition Determined by XRF

open access: yesX-Ray Spectrometry, Volume 54, Issue 5, Page 650-659, September/October 2025.
ABSTRACT There is no doubt that coins are of great interest to historical research, as they provide a wealth of information about the period in which they were minted. The Roman Tetrarchy (AD 294‐324) was one of the most turbulent periods in Roman history.
Ruth Pliego   +4 more
wiley   +1 more source

Remanentes de supernova que brillan en rayos-X [PDF]

open access: yes, 2011
Los remanentes de supernova (RSN), restos gaseosos de la explosión de una estrella (fenómeno comúnmente conocido como supernova - SN), se forman por la propagación de una onda de choque a través del medio interestelar circundante a donde se produjo dicha
Combi, Jorge A.
core  

Trade Unions and Life Satisfaction in Germany

open access: yesBritish Journal of Industrial Relations, Volume 63, Issue 3, Page 462-477, September 2025.
ABSTRACT The effects of trade union membership on wages and job satisfaction have been studied extensively. Arguably, life satisfaction serves as a more comprehensive measure of the benefits of union membership and warrants closer examination. Using all relevant waves from the German Socio‐Economic Panel between 1985 and 2019, we find a negative ...
Björn Becker, Laszlo Goerke, Yue Huang
wiley   +1 more source

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