Search results for "Intersection"
showing 10 items of 213 documents
ChemInform Abstract: Excitation of Nucleobases from a Computational Perspective I: Reaction Paths
2016
The main intrinsic photochemical events in nucleobases can be described on theoretical grounds within the realm of non-adiabatic computational photochemistry. From a static standpoint, the photochemical reaction path approach (PRPA), through the computation of the respective minimum energy path (MEP), can be regarded as the most suitable strategy in order to explore the electronically excited isolated nucleobases. Unfortunately, the PRPA does not appear widely in the studies reported in the last decade. The main ultrafast decay observed experimentally for the gas-phase excited nucleobases is related to the computed barrierless MEPs from the bright excited state connecting the initial Franck…
The Concept of Love in Masculinist Blogs : A Strategic Ideal
2018
Love is often considered a positive emotion and an ethical relationship between people. The representations of love in contemporary culture usually emphasise its beneficial, even empowering effects. However, the fluidity of the concept also enables other kinds of representations of love to flourish. For example, the advocates of traditional gender order — masculinists or male rights activists (MRAs)-— use idealistic images of heterosexual love, often intertwined with the idealised heterosexual nuclear family, to promote repressive ideologies such as misogyny and antifeminism. This is increasingly done with the help of internet sites. In this chapter I wish to show that the fluidity of the c…
Essential on the Photophysics and Photochemistry of the Indole Chromophore by Using a Totally Unconstrained Theoretical Approach
2015
Indole is a chromophore present in many different molecules of biological interest, such as the essential amino acid tryptophan and the neurotransmitter serotonin. On the basis of CASPT2//CASSCF quantum chemical calculations, the photophysical properties of the system after UV irradiation have been studied through the exploration of the potential energy hypersurfaces of the singlet and triplet low-lying valence excited states. In contrast to previous studies, the present work has been carried out without imposing any restriction to the geometry of the molecule (C1 symmetry) and by performing minimum energy path calculations, which is the only instrument able to provide the lowest-energy evo…
H-Point standard additions method for resolution of binary mixtures with simultaneous addition of both analytes
1995
Abstract The basis of the H-point standard additions method, HPSAM, with simultaneous addition of both analytes is proposed for the resolution of binary mixtures. It is a modification of the previously described H-point standard additions method that permits the resolution of both species from a unique calibration set by making the simultaneous addition of the two analytes. The method uses as analytical signals the absorbances at pairs of wavelengths where each species shows the same absorbance. The required data to apply the method are the absorbance values at the previously selected wavelengths for the sample alone and spiked with both species at known concentrations. Linear relations bet…
Variations on Weyl's theorem
2006
AbstractIn this note we study the property (w), a variant of Weyl's theorem introduced by Rakočević, by means of the localized single-valued extension property (SVEP). We establish for a bounded linear operator defined on a Banach space several sufficient and necessary conditions for which property (w) holds. We also relate this property with Weyl's theorem and with another variant of it, a-Weyl's theorem. We show that Weyl's theorem, a-Weyl's theorem and property (w) for T (respectively T*) coincide whenever T* (respectively T) satisfies SVEP. As a consequence of these results, we obtain that several classes of commonly considered operators have property (w).
Motivic Complexes and Relative Cycles
2019
This part is based on Suslin and Voevodsky’s theory of relative cycles that we develop in categorical terms, in the style of EGA. The climax of the theory is obtained in the study of a pullback operation for suitable relative cycles which is the incarnation of intersection theory in this language. Properties of this pullback operation, and on the conditions necessary to its definition, are made again inspired by intersection theory. We study the compatibility of this pullback operation with projective limits of schemes. In Section 9, the theory of relative cycles is exploited to introduce Voevodsky’s category of finite type schemes over an arbitrary base with morphisms finite correspondence…
Cosmetic Practices: The Intersection with Aesthetics and Medicine
2018
According to Shusterman, somaesthetics is as an aesthetic-ethical art of living, a practice devoted to living an attractively good life. So the aesthetic experience is not limited to art, but concerns also everyday life; consequently we can explain cosmetic practices (from make-up and hair-styling to plastic surgery) not only as making beauty, but also as feeling beauty, as a feeling better with oneself and with others. When beyond aesthetics purpose there is a functional purpose, cosmetic practices meet the medical science. This essay focuses on Somaesthetics in relation to high culture and popular culture. Firstly, some artistic practices are examined, which operate onto or into the body …
Inmigrantes “chinxs” en la Buenos Aires globalizada
2018
En las últimas décadas y debido a la globalización, aun siendo su afincamiento restrictivo, la movilidad de personas coloca incluso a sociedades como la argentina, que se autodefine como de inmigrantes, frente a interesantes encrucijadas discursivas: ¿Qué elementos mueve la vulnerabilidad de los actuales inmigrantes en la autopercepción de las autobiografías migratorias de lxs argentinxs? El artículo 25 de la Constitución argentina fomenta explícitamente “la inmigración europea”, pero, ¿qué sucede con la “nueva migración”, por ejemplo con la de personas originarias de China, que se establecieron en los años 1980 y ya cuentan con una “segunda generación” o con otras llegadas aún más reciente…
#MeToo in school: teachers’ and young learners’ lived experience of verbal sexual harassment as a pedagogical opportunity
2020
Based on a case study of verbal sexual harassment experienced by a young female teacher and her 17-year-old student in a Norwegian upper secondary school, this article addresses challenges and strengths of drawing upon negative experiences of ‘lived injustice’ in class, arguing that such experiences can serve as a resource for education about, through and for human rights. Complementing this case study, we discuss a survey we have conducted among secondary school students (N=382), concerning how young learners report being sexually harassed and how often they experience that an adult intervenes in the situation. Combining the theoretical framework of human rights education (HRE) and the con…
Conditions of cultural citizenship: intersections of gender, race and age in public debates on family migration
2015
This article analyses problem framings in public debates on family migration in Finland. The study focuses on the less-examined category of age and how it intersects with gender, race and religion. We examine the discursive context within which parliamentarians and the media negotiate questions of migration policies, belonging and citizenship. Our analysis identifies problem framings by combining frame analysis with the ‘What is the problem represented to be?’ approach, which understands policies as problematizations. We found that the debates held up the rather common notion of vulnerable women and children as groups that tighter family migration policies protect. The debates excluded cert…