Coexistence and tuning of spin-singlet and triplet transport in spin-filter Josephson junctions

The increased capabilities of coupling more and more materials through functional interfaces are paving the way to a series of exciting experiments and extremely advanced devices. Here we focus on the capability of magnetically inhomogeneous superconductor/ferromagnet (S/F) interfaces to generate spin-polarized triplet pairs. We build on previous achievements on spin-filter ferromagnetic Josephson junctions (JJs) and find direct correspondence between neat experimental benchmarks in the temperature behavior of the critical current and theoretical modelling based on microscopic calculations, which allow to determine a posteriori spin-singlet and triplet correlation functions. This kind of combined analysis provides an accurate proof of the coexistence and tunability of singlet and triplet transport. This turns to be a powerful way to model disorder and spin-mixing effects in a JJ to enlarge the space of parameters, which regulate the phenomenology of the Josephson effect and could be applied to a variety of hybrid JJs.

Intonation structuring of coherent Tuvan folklore narration

The article presents preliminary data on the intonation of the Tuvan folklore narration with specific focus to the relation between intonation and text structure. The analysis was carried out on the basis of four Tuvan folklore texts. Three hypothetical intonational correlates of the text structure were examined. First, we consider the difference in tempo of the main parts of the texts, following the idea of three-part structure of folklore texts proposed by V. Propp (beginning, complication and ending). The data obtained show no direct correspondence between the tempo of an utterance and its position in the text, as the tempo of the first and the last utterances and their ratio to the average tempo vary significantly from text to text. Secondly, it is shown that the texts contain a number of metatext markers, which are used quite often and are distinguished by the means of intonation (including changes in tone and intensity and separation by a pause). Thirdly, verbal forms with particle -tyr performing similar functions are examined. In contrast to metatext markers, they are not characterized by any intonational prominence, as the tone and intensity follow the general line of declination marking the end of an utterance. Thus, intonation plays an important role in forming the structure of Tuvan folklore texts, which, however, manifests itself only indirectly, in the way of emphasizing lexical means of structuring the text (metatext markers).

D-branes in AdS3 × S3 × 𝕋4 at k = 1 and their holographic duals

String theory on AdS3× S3× 𝕋4 with minimal k = 1 NS-NS flux can be described in terms of a free field worldsheet theory in the hybrid formalism. We construct various D-branes of this string theory and calculate their associated cylinder amplitudes. We find that these amplitudes match with the cylinder correlators of certain boundary states of the dual symmetric orbifold CFT Sym(𝕋4), thus suggesting a direct correspondence between these boundary conditions. We also show that the disk amplitudes of these D-branes localise to those points in the worldsheet moduli space where the worldsheet disk holomorphically covers the spacetime disk.

Dido's curse of Aeneas and Rome: An historical endorsement of prophetic emotions

Vergil constructs Dido's curse on Aeneas in direct correspondence to Dido's personal experiences; it is thus a measured response to Aeneas' desertion, as it includes a desire that he suffer what Dido herself has endured. Because Dido had initially offered a union between the Trojans and Tyrians and considered herself and Aeneas married, her curse involves both their nations.

Admissible Poisson bialgebras

An admissible Poisson algebra (or briefly, an adm-Poisson algebra) gives an equivalent presentation with only one operation for a Poisson algebra. We establish a bialgebra theory for adm-Poisson algebras independently and systematically, including but beyond the corresponding results on Poisson bialgebras given in [27]. Explicitly, we introduce the notion of adm-Poisson bialgebras which are equivalent to Manin triples of adm-Poisson algebras as well as Poisson bialgebras. The direct correspondence between adm-Poisson bialgebras with one comultiplication and Poisson bialgebras with one cocommutative and one anti-cocommutative comultiplications generalizes and illustrates the polarization–depolarization process in the context of bialgebras. The study of a special class of adm-Poisson bialgebras which include the known coboundary Poisson bialgebras in [27] as a proper subclass in general, illustrating an advantage in terms of the presentation with one operation, leads to the introduction of adm-Poisson Yang–Baxter equation in an adm-Poisson algebra. It is an unexpected consequence that both the adm-Poisson Yang–Baxter equation and the associative Yang–Baxter equation have the same form and thus it motivates and simplifies the involved study from the study of the associative Yang–Baxter equation, which is another advantage in terms of the presentation with one operation. A skew-symmetric solution of adm-Poisson Yang–Baxter equation gives an adm-Poisson bialgebra. Finally, the notions of an [Formula: see text]-operator of an adm-Poisson algebra and a pre-adm-Poisson algebra are introduced to construct skew-symmetric solutions of adm-Poisson Yang–Baxter equation and hence adm-Poisson bialgebras. Note that a pre-adm-Poisson algebra gives an equivalent presentation for a pre-Poisson algebra introduced by Aguiar.

Guarding Thought against Self-Destruction. Contradiction and Identity in Cohen and Hegel

Hermann Cohen's Logic of Pure Knowledge and G. W. F. Hegel's Science of Logic each use in their way the means of thought of negation and contradiction to unfold the philosophical dynamic: a fragile interplay between self-endangerment and self-preservation of thought. Here, the proximity and difference of the two authors are extended. The proximity lies in methodological negativism. The difference is in the significance of the principle of continuity. According to Cohen and Hegel as well, thinking proceeds exclusively, as Kant called it, synthetically. The exclusion of contradiction, limited to analytical judgments, has only marginal significance. But the commonality does not eliminate the differences. As Hegel puts it, contradiction is a principle of mediation and finally results in "self-dissolution"; it carries within itself a direction of logical "reconciliation." Per Cohen, contradiction is a principle of "annihilation" (annihilatio) of approaches to a determination that threatens any form of "identity." The turn Hegel put in contradiction itself, regarding in it a unity of positivity and negativity, has no direct counterpart in Cohen. Nevertheless, for him, too, the "judgment of contradiction" becomes the active basis of all cognitive thought. By exercising a contradiction-destroying "activity," the judgment of contradiction "protects," indeed "generates," the real possibility of cognition. The annihilation of the non-identical sets free the fundamental "judgment of origin" with which cognition finds its beginning. The principle of continuity taken over from Leibniz corresponds to it. Just this principle has now again no direct correspondence with Hegel.

Archivists and Architects: A Case Study on Mitigating Design Cataloging Challenges through Copyright Outreach

ABSTRACT For many archives working to publish collections online, securing copyright is a time-consuming challenge. What if the labor-intensive process of copyright outreach could be designed to increase the yield of staff time and add value to collection metadata? This case study explores an effort at the Irwin S. Chanin School of Architecture Archive of The Cooper Union to combine copyright outreach with author-generated metadata in an attempt to address common architectural record cataloging challenges. Specifically, the study looks at direct correspondence with creators as an opportunity to both secure permission to publish copyrighted materials and to fill descriptive holes in subject, title, caption, image orientation, and authorized name. This article further studies the feasibility of combining two laborintensive processes, discusses a preliminary and revised workflow, and evaluates the practicality and value of corresponding with over eight hundred individuals.

A Meta-Analysis of Influenza Vaccination Following Correspondence: Considerations for COVID-19

Background: High vaccination rates are needed to protect against influenza and to end the COVID-19 pandemic. Health authorities need to know if supplementing mass communications with direct correspondence to the community would increase uptake. Objectives: The primary objective is to determine if sending a single written message directly to individuals increases influenza vaccine uptake, and a secondary objective is to identify any identified content shown to increase influenza vaccine uptake. Methods: PubMed, PsycInfo and Web of Science were searched for English language RCTs testing a single correspondence for members of the community in OECD countries to obtain influenza vaccination. A meta-analysis with inverse-variance, random-effects modelling was used to estimate a mean, weighted risk ratio effect size measure of vaccine uptake. Studies were quality assessed and analysis was undertaken to account for potential publication bias. Results: Twenty-two randomized controlled trials were included covering 37 interventions. Of the 37 interventions, 32 (86%) report an increase in influenza vaccination rates. A formal meta-analysis shows that sending a single written message increases influenza vaccine uptake by 18% (RR = 1.18, 95%CI [1.13-1.22], Z = 8.56, p < .001) relative to the no contact comparator group. Analysis shows that the intervention is effective across correspondence type, age group, time, and location, and after allowing for risk of publication bias. Limitations: The review was restricted to English language publications, and the generalizability of results across the OECD may be questioned. Conclusions and implications: The implication for public health authorities organizing vaccination programs for influenza, and arguably also for COVID-19, is that sending written vaccination correspondence to members of the community is likely to increase uptake. Keywords: vaccine uptake, COVID-19, influenza, direct correspondence, meta-analysis.

Phylogenomic conflict coincides with rapid morphological innovation

Evolutionary biologists have long been fascinated with the episodes of rapid phenotypic innovation that underlie the emergence of major lineages. Although our understanding of the environmental and ecological contexts of such episodes has steadily increased, it has remained unclear how population processes contribute to emergent macroevolutionary patterns. One insight gleaned from phylogenomics is that gene-tree conflict, frequently caused by population-level processes, is often rampant during the origin of major lineages. With the understanding that phylogenomic conflict is often driven by complex population processes, we hypothesized that there may be a direct correspondence between instances of high conflict and elevated rates of phenotypic innovation if both patterns result from the same processes. We evaluated this hypothesis in six clades spanning vertebrates and plants. We found that the most conflict-rich regions of these six clades also tended to experience the highest rates of phenotypic innovation, suggesting that population processes shaping both phenotypic and genomic evolution may leave signatures at deep timescales. Closer examination of the biological significance of phylogenomic conflict may yield improved connections between micro- and macroevolution and increase our understanding of the processes that shape the origin of major lineages across the Tree of Life.

Reflections on hateful responses to research on hate in the United States

While researching hate and gaining media attention beginning in 2018, we incurred a good amount of hate toward us and our research in the form of online comments and direct correspondence. Rather than just pass the comments off as general hate, we collected the text and analyzed it in an attempt to better understand the beliefs, perceptions, and arguments of those that rejected our efforts toward gaining knowledge on geographical hate trends. We use content analysis to identify categories of anti-hate research argumentation based on the comments. A discussion is provided on the implications of our findings and insight from our experiences is given.