cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Kinetic approach to the nuclear-spin polaron formation
Creators: name: Fischer, Andreas
name: Kleinjohann, Iris
name: Anders, Frithjof B.
name: Glazov, Mikhail M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Under optical cooling of nuclei, a strongly correlated nuclear-spin polaron state can form in semiconductor nanostructures with localized charge carriers due to the strong hyperfine interaction of the localized electron spin with the surrounding nuclear spins. Here we develop a kinetic-equation formalism describing the nuclear-spin polaron formation. We present a derivation of the kinetic equations for an electron-nuclear spin system coupled to reservoirs of different electron and nuclear spin temperatures which generate the exact thermodynamic steady state for equal temperatures independent of the system size. We illustrate our approach using the analytical solution of the central spin model in the limit of an Ising form of the hyperfine coupling. For homogeneous hyperfine coupling constants, i.e., the box model, the model is reduced to an analytically solvable form. Based on the analysis of the nuclear-spin distribution function and the electron-nuclear spin correlators, we derive a relation between the electron and nuclear spin temperatures, where the correlated nuclear-spin polaron state is formed. In the limit of large nuclear baths, this temperature line coincides with the critical temperature of the mean-field theory for polaron formation. The criteria of the polaron formation in a finite-size system are discussed. We demonstrate that the system's behavior at the transition temperature does not depend on details of the hyperfine-coupling distribution function but only on the effective number of coupled bath spins. In addition, the kinetic equations enable the analysis of the temporal formation of the nuclear-polaron state, where we find the build-up process predominated by the nuclear spin-flip dynamics.
description: 11 pages, 5 figures
Nile perch demand in the Netherlands: are exports from Kenya, Tanzania and Uganda source-differentiated?
Creators: name: Muhammad, Andrew
name: Muhammad, Andrew
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Nile perch
subject: The Netherlands
subject: Rotterdam model
subject: Imports
subject: Demand
subject: Kenya
subject: Tanzania
subject: Uganda
subject: demand
subject: imports
subject: the Netherlands

description: This study examined Nile perch demand in the Netherlands and assessed the importance of country of origin as a determining factor. Import demand equations were estimated using the absolute price version of the Rotterdam model where Nile perch fillets were differentiated by product form (chilled and frozen) and by source country (Kenya, Tanzania and Uganda). The Armington framework (source-differentiation) is often used when estimating import demand for a similar product from different sources; however, the results of this study indicated that country of origin is not a factor in the Netherlands when importing Nile perch. Results showed that the responsiveness of importers to price changes was the same regardless to the supplying country. Likelihood ratio tests fail to reject the hypothesis that the own-price and cross-price demand estimates were equal across the three exporting countries. It was also shown that the origin-specific expenditure and own-price elasticities were not significantly different across the three exporting countries.
The Critical Phase for Random Graphs with a Given Degree Sequence
Creators: name: Kang, M.
name: Seierstad, T. G.
Publisher: name: Humboldt-Universität zu Berlin
Year: 2008
Subjects: subject: Theoretical Computer Science
subject: Statistics and Probability
subject: Computational Theory and Mathematics
subject: Applied Mathematics
subject: FOS: Mathematics
subject: 519 Wahrscheinlichkeiten, angewandte Mathematik

description: We consider random graphs with a fixed degree sequence. Molloy and Reed [11, 12] studied how the size of the giant component changes according to degree conditions. They showed that there is a phase transition and investigated the order of components before and after the critical phase. In this paper we study more closely the order of components at the critical phase, using singularity analysis of a generating function for a branching process which models the random graph with a given degree sequence.
Phenomenology of the SU(3)_c X SU(3)_L X U(1)_X model with right-handed neutrinos
Creators: name: Gutierrez, Diego A.
name: Ponce, William A.
name: Sanchez, Luis A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A phenomenological analysis of the three-family local gauge group $SU(3)_c\otimes SU(3)_L\otimes U(1)_X$ with right-handed neutrinos is carried out. Instead of using the minimal scalar sector able to break the symmetry in a proper way, we introduce an alternative set of four Higgs scalar triplets, which combined with an anomaly-free discrete symmetry, produces a quark mass spectrum without hierarchies in the Yukawa coupling contants. We also embed the structure into a simple gauge group and show some conditions to achieve a low energy gauge coupling unification, avoiding possible conflict with proton decay bounds. By using experimental results from the CERN-LEP, SLAC linear collider and atomic parity violation data, we update constraints on several parameters of the model.
description: RevTeX, 10 pages, 4 figures. v2: 13 pages. Substantial changes. New section about RGE analysis. Experimental data updated. v3: Discussions about bounds from unitarity violation of the CKM matrix and from FCNC included. Accepted for publication in Eur. Phys. J. C
There Is No Artificial "Intelligence"
Creators: name: Hendry, Manuel Flurin
Publisher: name: CILECT
Year: 2024
Subjects: Artificial Intelligence
Generative AI
Filmmaking
Education
History of Science

description: Addressing the panel on AI and Creativity at the 2024 CILECT Congress, this presentation is a critique of the concept of "Artificial Intelligence", arguing it is largely a mythologized sales pitch rooted in speculation, computationalism, and flawed analogies. Drawing on historical context and previous work, the presentation adresses the hype surrounding conscious AI and AGI, advocating for reframing the technology as a "tool" or "intelligence amplification" (IA) to counter mythmaking and promote a more grounded, human-centric approach.

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La paralinguisticità dell'estetico
Creators: name: Matteucci, Giovanni
Publisher: name: Aisthesis. Pratiche, linguaggi e saperi dell’estetico
Year: 2012

description: What is alike between aesthetic and linguistic? And what is basically unlike? This paper focuses on this ambiguous relation in order to point out how the aesthetic expressiveness is an original one. And it's from the point of view of the dialectical nexus between aesthetic experience and language that interesting suggestions are drawn here from different authors (Adorno, Borges and the Italian novelist Luigi Meneghello).
description: Aisthesis. Pratiche, linguaggi e saperi dell’estetico, Vol. 5 (2012): Vol 5 (2012) Special Issue – Riconcepire l'estetica
A Quarterly Food-at-Home Price Database for the U.S.
Creators: name: Todd, Jessica E.
name: Mancino, Lisa
name: Leibtag, Ephraim S.
name: Tripodo, Christina
name: Todd, Jessica E.
name: Mancino, Lisa
name: Leibtag, Ephraim S.
name: Tripodo, Christina
Publisher: name: Unknown
Year: 2009
Subjects: subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Health Economics and Policy
subject: Nielsen Homescan
subject: food prices
subject: diet quality
subject: market prices

description: This report provides a detailed description of the methodology used to construct ERS’s Quarterly Food-at-Home Price Database (Q-FAHPD). As the name suggest, these data provide quarterly observations on the mean price of 52 food categories for specific U.S. markets. We provide a description of the Nielsen Homescan data that was used to create this database, the methodology used to classify foods into food groups, how we determined the appropriate the level of aggregation (sub-regional markets) and our calculation of average prices for each food group. This report also contains an overview and summary of the resulting data.
Cosmic-Ray Signatures of Dark Matter from a Flavor Dependent Gauge Symmetry Model with Neutrino Mass Mechanism
Creators: name: Motz, Holger
name: Okada, Hiroshi
name: Asaoka, Yoichi
name: Kohri, Kazunori
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We propose an extension to the Standard Model accommodating two families of Dirac neutral fermions and Majorana fermions under additional ${U(1)_{e-μ} \times Z_3\times Z_2}$ symmetries where ${U(1)_{e-μ}}$ is a flavor dependent gauge symmetry related to the first and second family of the lepton sector, which features a two-loop induced neutrino mass model. The two families are favored by minimally reproducing the current neutrino oscillation data and two mass difference squares and canceling the gauge anomalies at the same time. As a result, we have a prediction for neutrino masses. The lightest Dirac neutral fermion is a dark matter candidate with tree-level interaction restricted to electron, muon and neutrinos, which makes it difficult to detect in direct dark matter search as well as indirect search focusing on the $τ$-channel, such as through $γ$-rays. It may however be probed by search for dark matter signatures in electron and positron cosmic rays, and allows interpretation of a structure appearing in the CALET electron+positron spectrum around 350-400 GeV as its signature, with a boost factor $\approx$40 Breit-Wigner enhancement of the annihilation cross section.
Efficient Caching and Rate Limiting Strategies for Optimized Web Services
Creators: name: Darius, Ashlin Darius Govindasamy
Publisher: name: Zenodo
Year: 2024
Subjects: caching
rate limiting
web services
efficiency
optimization
prisma
express
axios
crypto
sha256
cache management
api
latency reduction

description: This paper presents an in-depth exploration of optimized web service performance throughadvanced caching and rate limiting strategies. Originating from a real-world challenge facedby the website anime.adgstudios.co.za, which suffered from frequent 404 errors under heavyuser load, this research aims to address the critical need for efficient web service management.Our approach involves the implementation of sophisticated caching techniques, utilizingcryptographic hashing for data integrity and rapid data retrieval, and intelligent rate limitingto prevent service overuse.By integrating these strategies within an Express.js middleware framework and employingthe Prisma ORM for effective data management, we demonstrate a significant enhancementin service response times and overall system performance. The paper provides a thoroughtheoretical and practical examination of these methodologies, highlighting their impact onreducing server load and improving user experience. The empirical evidence presentedunderscores the effectiveness of our approach in a high-demand web service environment.Ultimately, this study contributes valuable insights into optimizing web service operations,offering a robust solution to the challenges of maintaining high performance and reliability inthe digital era. It stands as a testament to the potential of well-implemented caching and ratelimiting strategies in creating more resilient and efficient web infrastructures.
D-term inflation in D-brane cosmology
Creators: name: Panotopoulos, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider hybrid inflation in the braneworld scenario. In particular, we consider inflation in global supersymmetry with the D-terms in the scalar potential for the inflaton field to be the dominant ones (D-term inflation). We find that D-term dominated inflation can naturally accomodate all requirements of the successful hybrid inflationary model also in the framework of D-brane cosmology with global supersymmetry. The reheating temperature after inflation can be high enough ($\sim 10^{10} GeV$) for successful thermal leptogenesis.
description: 11 pages, 2 figures, one reference added
Integrable $\mathbb{Z}_2^2$-graded Extensions of the Liouville and Sinh-Gordon Theories
Creators: name: Aizawa, Naruhiko
name: Ito, Ren
name: Kuznetsova, Zhanna
name: Tanaka, Toshiya
name: Toppan, Francesco
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In this paper we present a general framework to construct integrable $\mathbb{Z}_2^2$-graded extensions of classical, two-dimensional Toda and conformal affine Toda theories. The scheme is applied to define the extended Liouville and Sinh-Gordon models; they are based on $\mathbb{Z}_2^2$-graded color Lie algebras and their fields satisfy a parabosonic statististics. The mathematical tools here introduced are the $\mathbb{Z}_2^2$-graded covariant extensions of the Lax pair formalism and of the Polyakov's soldering procedure. The $\mathbb{Z}_2^2$-graded Sinh-Gordon model is derived from an affine $\mathbb{Z}_2^2$-graded color Lie algebra, mimicking a procedure originally introduced by Babelon-Bonora to derive the ordinary Sinh-Gordon model. The color Lie algebras under considerations are: the $6$-generator $\mathbb{Z}_2^2$-graded $sl_2$, the $\mathbb{Z}_2^2$-graded affine ${\widehat{sl_2}}$ algebra with two central extensions, the $\mathbb{Z}_2^2$-graded Virasoro algebra obtained from a Hamiltonian reduction.
description: 25 pages
Organic Food Consumption Patterns in France
Creators: name: Hassan, Daniel
name: Monier-Dilhan, Sylvette
name: Nichele, Veronique
name: Simioni, Michel
name: Hassan, Daniel
name: Monier-Dilhan, Sylvette
name: Nichele, Veronique
name: Simioni, Michel
Publisher: name: Unknown
Year: 2009
Subjects: subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: market basket approach
subject: purchasing behavior
subject: logit model

description: This research addresses two important issues for the future expansion of organic consumption in France. The first one is related to knowing whether the organic choice is a permanent feature of consumer’s attitude or not: Do organic buyers occasionally pick one organic product or do they choose organic for “several” categories? The second issue concerns the impact of prices on buying organics which is revisited, distinguishing between capturing new consumers and increasing the demand coming from people already involved in organic markets. These questions are examined using the market basket approach; the price issue requires further estimations of demand models. The study relies on two staple food products, eggs and milk. The findings are : (i) choosing organic for one of the two items reinforces the probability of purchasing also the organic version of the second item; (ii) marginal reductions of the organic price have no impact on the decision of buying organic rather than conventional products; (iii) on the contrary, when people already purchase organic products, price elasticities are rather high; (iv) organic buyers’ demographic profile is not related to income neither to age nor to family size, but to the educational level.
Q-SNNs: Quantized Spiking Neural Networks
Creators: name: Wei, Wenjie
name: Liang, Yu
name: Belatreche, Ammar
name: Xiao, Yichen
name: Cao, Honglin
name: Ren, Zhenbang
name: Wang, Guoqing
name: Zhang, Malu
name: Yang, Yang
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Brain-inspired Spiking Neural Networks (SNNs) leverage sparse spikes to represent information and process them in an asynchronous event-driven manner, offering an energy-efficient paradigm for the next generation of machine intelligence. However, the current focus within the SNN community prioritizes accuracy optimization through the development of large-scale models, limiting their viability in resource-constrained and low-power edge devices. To address this challenge, we introduce a lightweight and hardware-friendly Quantized SNN (Q-SNN) that applies quantization to both synaptic weights and membrane potentials. By significantly compressing these two key elements, the proposed Q-SNNs substantially reduce both memory usage and computational complexity. Moreover, to prevent the performance degradation caused by this compression, we present a new Weight-Spike Dual Regulation (WS-DR) method inspired by information entropy theory. Experimental evaluations on various datasets, including static and neuromorphic, demonstrate that our Q-SNNs outperform existing methods in terms of both model size and accuracy. These state-of-the-art results in efficiency and efficacy suggest that the proposed method can significantly improve edge intelligent computing.
description: 8 pages, 5 figures
Décomposition spectrale et représentations spéciales d'un groupe réductif p-adique
Creators: name: Heiermann, Volker
Publisher: name: Humboldt-Universität zu Berlin
Year: 2004
Subjects: subject: General Mathematics
subject: 510 Mathematik

description: Let $G$ be a reductive connected $p$-adic group. With help of the Fourier inversion formula used in ‘Une formule de Plancherel pour l’algèbre de Hecke d’un groupe réductif $p$-adique’, V. Heiermann, Commun. Math. Helv.76 (2001), 388–415, we give a spectral decomposition on $G$. In particular, we deduce from it essentially that a cuspidal representation of a Levi subgroup $M$ is in the cuspidal support of a square-integrable representation of $G$ if and only if it is a pole of Harish-Chandra’s $\mu$-function of order equal to the parabolic rank of $M$. These poles are of maximal order. In more explicit terms, we show that this condition is necessary and that its sufficiency is equivalent to a combinatorical property of Harish-Chandra’s $\mu$-function, which appears to be a consequence of a result of E. Opdam. We get also identities between some linear combinations of matrix coefficients. These identities contain information on the formal degree of square-integrable representations and on their position in the induced representation.
description: Soit $G$ un groupe réductif $p$-adique connexe. Nous effectuons une décomposition spectrale sur $G$ à partir de la formule d’inversion de Fourier utilisée dans ‘Une formule de Plancherel pour l’algèbre de Hecke d’un groupe réductif $p$-adique’, V. Heiermann, Commun. Math. Helv.76 (2001), 388–415. Nous en déduisons essentiellement qu’une représentation cuspidale d’un sous-groupe de Levi M appartient au support cuspidal d’une représentation de carré intégrable de $G$ si et seulement si c’est un pôle de la fonction $\mu$ de Harish-Chandra d’ordre égal au rang parabolique de M. Ces pôles sont d’ordre maximal. Plus précisément, nous montrons que cette condition est nécessaire et que sa suffisance équivaut à une propriété combinatoire de la fonction $\mu$ de Harish-Chandra qui s’avère être une conséquence d’un résultat de E. Opdam. En outre, nous obtenons des identités entre des combinaisons linéaires de coefficients matriciels. Ces identités contiennent des informations sur le degré formel des représentations de carré intégrable ainsi que sur leur position dans la représentation induite.
Food prices and obesity: long-run effect in US metropolitan areas
Creators: name: Xu, Xin
name: Variyam, Jayachandran N.
name: Zhao, Jenny
name: Chaloupka, Frank J.
name: Xu, Xin
name: Variyam, Jayachandran N.
name: Zhao, Jenny
name: Chaloupka, Frank J.
Publisher: name: Unknown
Year: 2009
Subjects: Consumer/Household Economics
Food Consumption/Nutrition/Food Safety
Health Economics and Policy

description: Once considered as a serious public health issue only in developed countries, now overweight and obesity have dramatically increased in low- and middle-income countries, especially in urban settings (WHO, 2008). The main purpose of this study is to explore the economic incentives for this rapid growth in obesity rates, by studying variations in obesity over time and across geographic regions in the United States. Although a number of researchers and policymakers have devoted significant resources to address the recent rapid rise in obesity in the United States, “the prevalence of overweight and obesity has increased sharply since the mid 1970s” (Centers for Disease Control, 2008) and most of this increase occurred in the 1980s and 1990s (Cutler, et al., 2003). More importantly, changes in food prices have also occurred over the past 30 years and have occurred simultaneously with the obesity epidemic (Finkelstein, et al., 2005). In this study, we investigate how the decline in food prices in the last three decades affects the long-run growth of obesity rates. We take the advantage of the large panel data that cover for the time periods with the fastest growth of obesity rates, by using metropolitan samples from the National Health Interview Survey (NHIS) and information on prices of food at home and food away from home from these major metropolitan areas for years 1976 to 2001. Specifically, instead of using absolute food prices, we explore the impacts from changes in relative prices of food at home and food away from home (i.e. food prices relative to prices for a market basket of consumer goods and services in these metropolitan areas), as well as changes in prices of food at home and food away from home on the growth in obesity rates during this time frame. We also control for the changes in contextual factors and changes in value of female in these metropolitan areas. Our findings reveal the important fact that changes in relative food prices can explain about 20 percent of the obesity growth during this time period and such effect is more pronounced for the low-educated. The results of the study provide an interpretation of the long-run growth of obesity rates in urban settings.
Percezione
Creators: name: Ferraris, Maurizio
Publisher: name: Aisthesis. Pratiche, linguaggi e saperi dell’estetico
Year: 2012

description: The essay concerns the notion of realism and its relationship with the notion of perception. The ontological meaning of aesthetics as aisthesis is in fact in the non-amendable nature of perception. From this non-amendability the essay outlines four traces through which aisthesis leads to realism: “nonconceptual content”, “object”, “naivety”, “ontology”.
description: Aisthesis. Pratiche, linguaggi e saperi dell’estetico, Vol. 5 (2012): Vol 5 (2012) Special Issue – Riconcepire l'estetica
The flux of noncommutative U(1) instanton through the fuzzy spheres
Creators: name: Henni, A. A.
name: Lagraa, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: From the ADHM construction on noncommutative $R_θ^4$ we investigate different U(1) instanton solutions tied by isometry trasformations. These solutions present a form of vector fields in noncommutative $R_θ^3$ vector space which makes possible the calculus of their fluxes through fuzzy spheres. We establish the noncommutative analog of Gauss theorem from which we show that the flux of the U(1) instantons through fuzzy spheres does not depend on the radius of these spheres and it is invariant under isometry transformations.
description: 18 pages, new version to appear in Int. Jour. of Mod. Phys. A
Non-Perturbative Completion of Hopf-Algebraic Dyson-Schwinger Equations
Creators: name: Borinsky, Michael
name: Dunne, Gerald V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: For certain quantum field theories, the Kreimer-Connes Hopf-algebraic approach to renormalization reduces the Dyson-Schwinger equations to a system of non-linear ordinary differential equations for the expansion coefficients of the renormalized Green's function. We apply resurgent asymptotic analysis to find the trans-series solutions which provide the non-perturbative completion of these formal Dyson-Schwinger expansions. We illustrate the general approach with the concrete example of four dimensional massless Yukawa theory, connecting with the exact functional solution found by Broadhurst and Kreimer. The trans-series solution is associated with the iterative form of the Dyson-Schwinger equations, and displays renormalon-like structure of integer-repeated Borel singularities. Extraction of the Stokes constant is possible due to a property we call `functional resurgence'.
description: 17 pages, 3 figures
Some intersections in the Poincare bundle, and the universal theta divisor on the moduli space of (semi)abelian varieties
Creators: name: Grushevsky, Samuel
name: Lehavi, David
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We compute all the top intersection numbers of divisors on the total space of the Poincare bundle restricted to the product of a curve and the abelian variety. We use these computations to find the class of the universal theta divisor and $m$-theta divisor inside the universal corank 1 semiabelian variety -- the boundary of the partial toroidal compactification of the moduli space of abelian varieties. We give two computational examples: we compute the boundary coefficient of the Andreotti-Mayer divisor (computed by Mumford but in a much harder and ad hoc way), and the analog of this for the universal $m$-theta divisor.
description: v2: Weaker results: no claim regarding the Kodaira dimension of A_6. The error in version 1 was in the computation of $m$-theta class (theorem 6.6 in v1) - the correct computation is theorem 4.15 in v2; v3: final version. IMRN, to appear
The Efficacy of Conversational Artificial Intelligence in Rectifying the Theory of Mind and Autonomy Biases: Comparative Analysis
Creators: name: Rządeczka, Marcin
name: Sterna, Anna
name: Stolińska, Julia
name: Kaczyńska, Paulina
name: Moskalewicz, Marcin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computers and Society (cs.CY)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences
subject: J.3; K.4.2

description: Background: The increasing deployment of Conversational Artificial Intelligence (CAI) in mental health interventions necessitates an evaluation of their efficacy in rectifying cognitive biases and recognizing affect in human-AI interactions. These biases, including theory of mind and autonomy biases, can exacerbate mental health conditions such as depression and anxiety.
 Objective: This study aimed to assess the effectiveness of therapeutic chatbots (Wysa, Youper) versus general-purpose language models (GPT-3.5, GPT-4, Gemini Pro) in identifying and rectifying cognitive biases and recognizing affect in user interactions.
 Methods: The study employed virtual case scenarios simulating typical user-bot interactions. Cognitive biases assessed included theory of mind biases (anthropomorphism, overtrust, attribution) and autonomy biases (illusion of control, fundamental attribution error, just-world hypothesis). Responses were evaluated on accuracy, therapeutic quality, and adherence to Cognitive Behavioral Therapy (CBT) principles, using an ordinal scale. The evaluation involved double review by cognitive scientists and a clinical psychologist.
 Results: The study revealed that general-purpose chatbots outperformed therapeutic chatbots in rectifying cognitive biases, particularly in overtrust bias, fundamental attribution error, and just-world hypothesis. GPT-4 achieved the highest scores across all biases, while therapeutic bots like Wysa scored the lowest. Affect recognition showed similar trends, with general-purpose bots outperforming therapeutic bots in four out of six biases. However, the results highlight the need for further refinement of therapeutic chatbots to enhance their efficacy and ensure safe, effective use in digital mental health interventions. Future research should focus on improving affective response and addressing ethical considerations in AI-based therapy.
description: 28 pages, 5 tables, 6 figures
Ellipticity of photon emission from strongly magnetized hot QCD plasma
Creators: name: Wang, Xinyang
name: Shovkovy, Igor A.
name: Yu, Lang
name: Huang, Mei
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: By making use of an explicit representation for the imaginary part of the photon polarization tensor in terms of transitions between the Landau levels of light quarks, we study the angular dependence of direct photon emission from a strongly magnetized quark-gluon plasma. Because of the magnetic field, the leading order photon rate comes from the three processes of the zeroth order in the coupling constant $α_s$: (i) the quark splitting ($q\rightarrow q+γ$), (ii) the antiquark splitting ($\bar{q} \rightarrow \bar{q}+γ$), and (iii) the quark-antiquark annihilation ($q + \bar{q}\rightarrow γ$). In a wide range of moderately high temperatures, $T\gtrsim m_π$, and strong magnetic fields, $|eB|\gtrsim m_π^2$, the direct photon production is dominated by the two splitting processes. We show that the Landau-level quantization of quark states plays an important role in the energy and angular dependence of the photon emission. Among other things, it leads to a nontrivial momentum dependence of the photon ellipticity coefficient $v_2$, which takes negative values at small transverse momenta and positive values at large transverse momenta. The crossover between the two regimes occurs around $k_T\simeq \sqrt{|eB|}$. In application to heavy-ion collisions, this suggests that a large value of $v_2$ for the direct photons could be explained in part by the magnetic field in the quark-gluon plasma.
description: 16 pages, 9 multi-panel figures; published version
title: Oniromanciennes de la vie : la mort et l’imagination dans l’art mexicain
Creators: name: Baeza Soto, Juan Carlos
Publisher: name: Savoirs en prisme, Editions et presses universitaires de Reims
Year: 2012

description: Cette analyse personnelle et approfondie de l’art mexicain propose un décryptage d’œuvres picturales du XXe siècle qui explore les correspondances entre la statuaire aztèque, la peinture surréaliste, la photographie et la pratique des installations pour établir un continuum à travers ces diverses représentations de la mort.
Posophotis Barnard 1979
Creators: name: Sir, Sally J.
name: White, Kristine N.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Photidae
Posophotis

description: GenusPosophotisBarnard, 1979
Diagnosis.
Antenna 1 accessory flagellum 2 - or 3 - articulate (possibly with tiny additional article). Head cephalic lobe subacute. Coxae elongate, large, and overlapping. Dactylus of maxilliped short, stubby, setose apically. Gnathopod 1 small, weakly subchelate, carpus slightly longer than propodus. Gnathopod 2 broad, subchelate, posterior margin of propodus broadly lobate, anterior margin of propodus slightly longer than posterior margin, palm oblique, sculptured. Uropod 3 peduncle elongate, rami styliform, slightly shorter than peduncle, one-articulate.
description: Published as part of Sir, Sally J. & White, Kristine N., 2025, Caribbean Amphipoda (Crustacea) of Panama. Part IV: parvorder Caprellidira, pp. 151-205 in ZooKeys 1234 on pages 151-205, DOI: 10.3897/zookeys.1234.145826
First Discovery of a Fast Radio Burst at 350 MHz by the GBNCC Survey
Creators: name: Parent, E.
name: Chawla, P.
name: Kaspi, V. M.
name: Agazie, G. Y.
name: Blumer, H.
name: DeCesar, M.
name: Fiore, W.
name: Fonseca, E.
name: Hessels, J. W. T.
name: Kaplan, D. L.
name: Kondratiev, V. I.
name: LaRose, M.
name: Levin, L.
name: Lewis, E. F.
name: Lynch, R. S.
name: McEwen, A. E.
name: McLaughlin, M. A.
name: Mingyar, M.
name: Noori, H. Al
name: Ransom, S. M.
name: Roberts, M. S. E.
name: Schmiedekamp, A.
name: Schmiedekamp, C.
name: Siemens, X.
name: Spiewak, R.
name: Stairs, I. H.
name: Surnis, M.
name: Swiggum, J.
name: van Leeuwen, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the first discovery of a fast radio burst (FRB), FRB 20200125A, by the Green Bank Northern Celestial Cap (GBNCC) Pulsar Survey conducted with the Green Bank Telescope at 350 MHz. FRB 20200125A was detected at a Galactic latitude of 58.43 degrees with a dispersion measure of 179 pc cm$^{-3}$, while electron density models predict a maximum Galactic contribution of 25 pc cm$^{-3}$ along this line of sight. Moreover, no apparent Galactic foreground sources of ionized gas that could account for the excess DM are visible in multi-wavelength surveys of this region. This argues that the source is extragalactic. The maximum redshift for the host galaxy is $z_{max}=0.17$, corresponding to a maximum comoving distance of approximately 750 Mpc. The measured peak flux density for FRB 20200125A is 0.37 Jy, and we measure a pulse width of 3.7 ms, consistent with the distribution of FRB widths observed at higher frequencies. Based on this detection and assuming an Euclidean flux density distribution of FRBs, we calculate an all-sky rate at 350 MHz of $3.4^{+15.4}_{-3.3} \times 10^3$ FRBs sky$^{-1}$ day$^{-1}$ above a peak flux density of 0.42 Jy for an unscattered pulse having an intrinsic width of 5 ms, consistent with rates reported at higher frequencies. Given the recent improvements in our single-pulse search pipeline, we also revisit the GBNCC survey sensitivity to various burst properties. Finally, we find no evidence of interstellar scattering in FRB 20200125A, adding to the growing evidence that some FRBs have circumburst environments where free-free absorption and scattering are not significant.
description: 15 pages, 6 figures, Submitted to ApJ
Exagamglogene Autotemcel: First Approval
Creators: name: Hoy, Sheridan M.
Publisher: name: Adis Journals
Year: 2024
Subjects: Medicine
Gene and Molecular Therapy

description: Declarations
Funding The preparation of this review was not supported by any external funding.
Authorship and Conflict of interest During the peer review process the manufacturer of the agent under review was offered an opportunity to comment on the article. Changes resulting from any comments received were made by the authors on the basis of scientific completeness and accuracy. Sheridan M. Hoy is a salaried employee of Adis International Ltd/Springer Nature, and declares no relevant conflicts of interest. All authors contributed to this article and are responsible for its content.
Ethics approval, Consent to participate, Consent to publish, Availability of data and material, Code availability Not applicable.
Additional information about this Adis Drug Review can be found here.

Abstract
Exagamglogene autotemcel (Casgevy™) is a genetically modified autologous CD34+ cell enriched population. It contains human haematopoietic stem and progenitor cells edited ex vivo by CRISPR/Cas9 (a DNA double strand break-inducing nuclease system) to differentiate into erythroid cells that produce high levels of foetal hemoglobin. Developed by Vertex Pharmaceuticals and CRISPR Therapeutics, exagamglogene autotemcel received its first approval on 16 November 2023 in the UK for the treatment of transfusion-dependent β-thalassemia (TDT) in patients aged ≥ 12 years for whom haematopoietic stem cell (HSC) transplantation is appropriate and a human leukocyte antigen matched related HSC donor is not available. On the same day, it was also approved in the UK for the treatment of sickle cell disease (SCD) in patients aged ≥ 12 years with recurrent vasoocclusive crises (VOCs) who have the βS/βS, βS/β+ or βS/β0 genotype for whom HSC transplantation is appropriate and a human leukocyte antigen matched related HSC donor is not available. Subsequently, exagamglogene autotemcel was approved in the USA on 8 December 2023 for the treatment of SCD in patients aged ≥ 12 years with recurrent VOCs and received a positive opinion in the EU on 14 December 2023 for the treatment of TDT and SCD. A regulatory assessment of exagamglogene autotemcel is currently underway for the treatment of TDT in the USA
© Springer Nature Switzerland AG 2024
Stabilization of three--dimensional light bullets by a transverse lattice in a Kerr medium with dispersion management
Creators: name: Matuszewski, M.
name: Infeld, E.
name: Malomed, B. A.
name: Trippenbach, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate a possibility to stabilize three-dimensional spatiotemporal solitons ("light bullets") in self--focusing Kerr media by means of a combination of dispersion management in the longitudinal direction (with the group-velocity dispersion alternating between positive and negative values) and periodic modulation of the refractive index in one transverse direction, out of the two. The analysis is based on the variational approximation (results of direct three-dimensional simulations will be reported in a follow-up work). A predicted stability area is identified in the model's parameter space. It features a minimum of the necessary strength of the transverse modulation of the refractive index, and finite minimum and maximum values of the soliton's energy. The former feature is also explained analytically.
description: 12 pages, 3 figures, submitted to Optics Communications
Large Zero Point Density Fluctuations in Fluids
Creators: name: Wu, Peter
name: Ford, L. H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Zero point density fluctuations in a liquid and their potential observation by light scattering are discussed. It is suggested that there are two distinct effects of interest. One gives an average number of scattered photons, and depends upon an inverse power of the photon wavelength. The second effect arises in the scattering of finite size photon wave packets and depends upon an inverse power of the spatial size of the wave packet. This effect appears as large fluctuations in the number of scattered photons, and is analogous to the vacuum fluctuations of spacetime averages of the energy density in quantum field theory.
description: 9 pages, 2 figures
Investigating the EGRET-radio galaxies link with INTEGRAL: the case of 3EG J1621+8203 and NGC 6251
Creators: name: Foschini, L.
name: Chiaberge, M.
name: Grandi, P.
name: Grenier, I. A.
name: Guainazzi, M.
name: Hermsen, W.
name: Palumbo, G. G. C.
name: Rodriguez, J.
name: Chaty, S.
name: Corbel, S.
name: Di Cocco, G.
name: Kuiper, L.
name: Malaguti, G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The analysis of an INTEGRAL AO2 observation of the error contours of the EGRET source 3EG J1621+8203 is presented. The only source found inside the error contours for energies between 20 and 30 keV at 5 sigma detection significance is the FR I radio galaxy NGC 6251. This supports the identification of NGC 6251 with 3EG J1621+8203. The observed flux is higher and softer than observed in the past, but consistent with a variable blazar-like spectral energy distribution.
description: 5 pages, 2 figures. Accepted for publication on A&A Main Journal
Orbital-Peierls State in NaTiSi2O6
Creators: name: van Wezel, Jasper
name: Brink, Jeroen van den
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Does the quasi one-dimensional titanium pyroxene NaTiSi2O6 exhibit the novel {\it orbital-Peierls} state? We calculate its groundstate properties by three methods: Monte Carlo simulations, a spin-orbital decoupling scheme and a mapping onto a classical model. The results show univocally that for the spin and orbital ordering to occur at the same temperature --an experimental observation-- the crystal field needs to be small and the orbitals are active. We also find that quantum fluctuations in the spin-orbital sector drive the transition, explaining why canonical bandstructure methods fail to find it. The conclusion that NaTiSi2O6 shows an orbital-Peierls transition is therefore inevitable.
description: 4 pages, 3 figures
Bubble propagation through viscoplastic fluids
Creators: name: Dubash, Neville
Publisher: name: University of British Columbia
Year: 2009

description: In this thesis we consider the propagation of an air bubble in a cylindrical column filled with a viscoplastic fluid. Because of the yield stress of the fluid, it is possible that a bubble will remain trapped in the fluid indefinitely. We restrict our focus to the case of slow moving or near-stopped bubbles. Using the Herschel-Bulkley constitutive equation to model our viscoplastic fluid, we develop a general variational inequality for our problem. This inequality leads to a stress minimization principle for the solution velocity field. We are also able to prove a stress maximization principle for the solution stress field. Using these two principles we develop three stopping conditions. For a given bubble we can calculate, from our stopping conditions, a critical Bingham number above which the bubble will not move. The first stopping condition is applicable to arbitrary axisymmetric bubbles. It is strongly dependent on the bubble length as well as the general shape of the bubble. The second stopping condition allows us to use existing solutions of simpler problems to calculate additional stopping conditions. We illustrate this second stopping condition using the example of a spherical bubble. The third stopping condition applies to long cylindrical bubbles and is dependent on the radius of the bubble. In addition to our stopping conditions, we determine how the physical parameters of the problem affect the rise velocity of the bubble. We also conduct a set of experiments using a series of six different Carbopol solutions. From the experiments we examine the dependence of the bubble propagation velocity on the fluid parameters and compare this to our analytic results. We find that there is an interesting discrepancy for low modified Reynolds number flows wherein the bubble velocity increases with a decrease in the modified Reynolds numbers. We also compare our three stopping conditions with the data. It appears that all the stopping conditions seem to be valid for the range of bubbles examined despite the fact that when applying the second and third stopping conditions most bubble shapes are not well approximated by a sphere or a cylinder.
Impurity Lattice Monte Carlo for Hypernuclei
Creators: name: Frame, Dillon
name: Lähde, Timo A.
name: Lee, Dean
name: Meißner, Ulf-G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We consider the problem of including $Λ$ hyperons into the ab initio framework of nuclear lattice effective field theory. In order to avoid large sign oscillations in Monte Carlo simulations, we make use of the fact that the number of hyperons is typically small compared to the number of nucleons in the hypernuclei of interest. This allows us to use the impurity lattice Monte Carlo method, where the minority species of fermions in the full nuclear Hamiltonian is integrated out and treated as a worldline in Euclidean projection time. The majority fermions (nucleons) are treated as explicit degrees of freedom, with their mutual interactions described by auxiliary fields. This is the first application of the impurity lattice Monte Carlo method to systems where the majority particles are interacting. Here, we show how the impurity Monte Carlo method can be applied to compute the binding energy of the light hypernuclei. In this exploratory work we use spin-independent nucleon-nucleon and hyperon-nucleon interactions to test the computational power of the method. We find that the computational effort scales approximately linearly in the number of nucleons. The results are very promising for future studies of larger hypernuclear systems using chiral effective field theory and realistic hyperon-nucleon interactions, as well as applications to other quantum many-body systems.
description: 10 pages, 4 figures, some more explanations and references, version published in EPJA
Première partie de la thèse. Contributions pour une théorie générale sur la photographie documentaire
Creators: name: Dantou, Jean-Robert
Publisher: name: Zenodo
Year: 2024

description: La thèse est organisée en deux parties :

 

Première partie : Contributions pour une théorie générale sur la photographie documentaire : livraison le 13 janvier 2024

 

Chap. 1 - Du paradigme de la transparence à la théorie de la triple opacité : propositions opérationnelles pour la photographie documentaire

 

Chap. 2 - L’acte photographique

 

Chap. 3 - Traitement, circulation, réception

 

Deuxième partie : Arriver à Tonnerre

 

Chap. 1 : Arriver par la Résidence Accueil de Tonnerre : livraison le 15 mars 2023

 

Chap. 2 : Arriver par les logements d’urgence du CCAS et circuler dans un territoire de relégation : livraison le 21 avril 2023

 

Chap. 3 : Investir et s’engager dans l’immobilier locatif d’un centre bourg en déclin : livraison le 12 juin 2023
Strongly correlated multilayered nanostructures near the Mott transition
Creators: name: Freericks, J. K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We examine devices constructed out of multilayered sandwiches of semi-infinite metal--barrier--semi-infinite metal, with the barrier tuned to lie near the quantum critical point of the Mott metal-insulator transition. By employing dynamical mean field theory, we are able to solve the many-body problem exactly (within the local approximation) and determine the density of states through the nanostructure and the charge transport perpendicular to the planes. We introduce a generalization of the Thouless energy that describes the crossover from tunneling to incoherent thermally activated transport.
description: 7 pages, 6 figures, conference proceedings for the 24th international conference in theoretical physics, Ustron, Poland, submitted to phys. stat. solidi. b