Search results for "Arity"
showing 10 items of 2893 documents
Temperature dependence of the static structure factor of ortho-terphenyl in the supercooled liquid regime close to the glass transition
1993
Abstract Studying the temperature dependence of the static structure factor of ortho-terphenyl from the liquid state down to the glass we find that the main peak of S ( Q ) is split into two maxima which behave quite differently. While the maximum at Q =1.4 A −1 is not much affected by the temperature variation the one at 1.9 A −1 is significantly enhanced. This effect is connected with a change of the short range order, i.e. of the intermolecular distances, but evolves continuously. Thus the dynamic anomalies that have been observed in this system around a characteristic temperature T c ≈290 K are not simply due to a discontinuous change in S ( Q ) but can be attributed to the existence of…
Infrared bandshapes of intramolecularly H-bonded systems, 2,4,6-tribromophenol
1983
Abstract A detailed quantitative analysis of the IR bandshape of the ν S (OH) vibration of 2,4,6-tribromophenol in a series of solvents of varying polarity is presented. A distinct dependence of band parameters on solvent polarity has been found. Various contributions to the bandshape are discussed.
Diaryldistyrylpyrazines: Solvatochromic and Acidochromic Fluorophores
2013
Diaryldimethylpyrazines are the starting materials for the synthesis of C2-symmetric donor- or acceptor-substituted distyrylpyrazines. The optical properties of these cruciform-shaped dyes are dominated by the distyrylpyrazine units; the photophysics is controlled by the styryl substitution, the diaryl substituents on the central pyrazine only having a small effect. Protonation occurs on the pyrazine and/or lateral amines or azines, thereby altering the absorption and emission properties. Hypso- and bathochromism as well as fluorescence quenching depend on the nature of the terminal substituent. This, and a significant positive solvatochromism of the fluorescence, allow optical sensing of t…
Charge-dependent flow and the search for the chiral magnetic wave in Pb-Pb collisions at √sNN = 2.76 TeV
2016
We report on measurements of a charge-dependent flow using a novel three-particle correlator with ALICE in Pb-Pb collisions at the CERN Large Hadron Collider (LHC), and discuss the implications for observation of local parity violation and the chiral magnetic wave (CMW) in heavy-ion collisions. Charge-dependent flow is reported for different collision centralities as a function of the event charge asymmetry. While our results are in qualitative agreement with expectations based on the CMW, the nonzero signal observed in higher harmonics correlations indicates a possible significant background contribution. We also present results on a differential correlator, where the flow of positive and …
Orientation-Dependent Handedness of Chiral Plasmons on Nanosphere Dimers: How to Turn a Right Hand into a Left Hand
2016
Optical activity, which is used as a discriminator of chiral enantiomers, is demonstrated to be orientation dependent on individual, and nominally achiral, plasmonic nanosphere dimers. Through measurements of their giant Raman optical activity, we demonstrate that L/R-handed enantiomers can be continuously turned into their R/L-handed mirror images without passing through an achiral state. The primitive uniaxial multipolar response, with demonstrable broken parity and time reversal symmetry, reproduces the observations as resonant Raman scattering on plasmons that carry angular momentum. The analysis underscores that chirality does not have a quantitative continuous measure and recognizes t…
Recognition and Civic Selection
2021
Large-scale immigration and the refugee crisis have caused many states to adapt ever stricter civic selection processes. This paper discusses the challenges arising from civic selection from the perspective of recognition theories. The argument is that recognition theories provide good conceptual tools with which to critically analyze civic selection and immigration. However, the paper also aims to highlight that many current institutional practices are problematic from the perspective of recognition. In the context of civic selection, it is helpful to understand recognition as something that comes in two analytically distinct modes: horizontal (or interpersonal) and vertical (or institutio…
以认知的方法探讨法语和中文的时空心智结构
2022
In Mandarin, the word for the world is shìjiè (mandarin 世界), the morpheme shì (mandarin 世) indicates time, while the morpheme jiè (mandarin界) indicates space. Derived from the classic book of Buddhism, this dissyllabic word shìjiè (mandarin 世界) refers to both the notion of time and that of space. It remains true that understandings and representations of the world are inevitably based on those of space and those of time.Moreover, according to Gustave Guillaume, the distinction between noun and verb is fundamentally explained by that of the universe-space and the universe-time (see 1973a: 97). Indeed, the name, used to designate a being, either visible or invisible, is closely linked to the …
Individual Differences in Self-Talk Frequency: Social Isolation and Cognitive Disruption
2019
Despite the popularity of research on intrapersonal communication across many disciplines, there has been little attention devoted to the factors that might account for individual differences in talking to oneself. In this paper, I explore two possible explanations for who people might differ in the frequency of their self-talk. According to the “social isolation” hypothesis, spending more time alone or having socially-isolating experiences will be associated with increased self-talk. According to the “cognitive disruption” hypothesis, having self-related experiences that are cognitively disruptive will be associated with increased self-talk frequency. Several studies using the Self-Talk Sc…
An Early Stage Researcher's Primer on Systems Medicine Terminology
2021
Background: Systems Medicine is a novel approach to medicine, that is, an interdisciplinary field that considers the human body as a system, composed of multiple parts and of complex relationships at multiple levels, and further integrated into an environment. Exploring Systems Medicine implies understanding and combining concepts coming from diametral different fields, including medicine, biology, statistics, modeling and simulation, and data science. Such heterogeneity leads to semantic issues, which may slow down implementation and fruitful interaction between these highly diverse fields. Methods: In this review, we collect and explain more than100 terms related to Systems Medicine. Thes…
Organizational Culture Beyond Consensus and Clarity: Narratives From Elite Sport
2020
In sport psychology, organizational culture is usually depicted as shared, consistent, and clear—the glue that holds people together so they can achieve success. There is, however, growing discontent in sport psychology with this idea of culture and extensive critiques in other academic domains that suggest this perspective is limited. Accordingly, the authors draw on narrative interviews with participants (n = 7) from different areas of sport and use Martin and Meyerson’s three perspective (integration, differentiation, and fragmentation) approach to culture alongside thematic analysis to reconstruct three “ideal cases” that exemplify each perspective. The findings emphasize a different pa…