1,721,154 research outputs found
Misinformation effect in emotional/neutral pictures. International Journal of Psychology
No full textGrowth of oxide-metal interfaces by atomic oxygen: Monolayer of NiO(001) on Ag(001)
No full textWe have tested the use of atomic oxygen to prepare 3d oxide-metal interfaces for which standard reactive deposition techniques based on molecular oxygen fail in providing well-defined chemical composition and controlled atomic structure and morphology. Using monolayer NiO(001) on Ag(001) as a model system, we find that NiO(001)/Ag(001) films grown by atomic oxygen have a two-dimensional highly stoichiometric (1×1) structure and a uniform monoatomic thickness, while those grown by conventional O2 have a nonstoichiometric (2×1) structure or a three-dimensional morphology. Atomic oxygen may provide a practical way to prepare 3d oxide-metal interfaces with highly controlled stoichiometry, structure, and morphology. © 2009 The American Physical Society
Electron Energy Loss spectroscopic investigation of Cr-L2,3 core levels in Cr and chromium silicides
No full textCore-Shell Charge Transfer in Plasmonic Fe@Ag Nanoparticles on MgO Film
Full text linkIn this work we report the interfacial charge transfer between the Fe core and Ag shell in self-organized nanoparticles on MgO films on Mo(001). Predeposited Fe nanoparticles organize in a square network with long-range order on the oxide surface guided by the MgO coincidence lattice. When Ag is added, it covers the Fe nanoparticles, forming a shell. By means of XPS and UPS we show that a charge transfer occurs between the Fe core and the Ag shell, determining the oxidation of part of the Fe atoms and a negative charging of the Ag shell. This is confirmed by band bending and core level shifts. As a consequence of the Fe@Ag morphology and composition the plasmonic response of the nanoparticles is modified with respect to pure Ag nanoparticles
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
- …
