bluuebunny/crossref_metadata_2025_split huggingface dataset:
Revisión Sistemática de la Investigación Científica en Trabajo Social y Salud Mental
Authors: Chaves-Montero Alfonso , Blanco-Miguel Pilar 
Published: December 2024

Introducción: El Trabajo Social y la Salud Mental son dos campos interdisciplinarios que trabajan juntos para mejorar el bienestar psicosocial de las personas y las comunidades. En las últimas décadas, ha habido un aumento en el interés en comprender cómo estos dos campos se relacionan y cómo afectan mutuamente el bienestar de las personas. Metodología: Para llevar a cabo esta revisión sistemática utilizando la metodología PRISMA, se realizó un análisis exhaustivo de la producción científica relacionada con el Trabajo Social y la Salud Mental en revistas académicas de impacto. Resultados: La revisión sistemática muestra un mayor reconocimiento de la importancia de abordar los determinantes sociales de la salud en la promoción del bienestar psicosocial y la incorporación de prácticas de Trabajo Social en el campo de la Salud Mental. Discusión: Se busca en particular identificar las tendencias, métodos y resultados más relevantes en la literatura académica reciente sobre este tema. Conclusiones: Este estudio ofrece una perspectiva completa de la relación entre el Trabajo Social y la Salud Mental y destaca la importancia de utilizar un enfoque interdisciplinario para abordar los problemas en este campo.
Una interpretación bioética de los Murales de Osaka
Authors: Álvarez Díaz Jorge Alberto 
Published: December 2024

Introducción: En la historia del arte en México pueden identificarse dos periodos en el Siglo XX: en la primera mitad la Escuela Mexicana de Pintura, y en la segunda mitad la generación de la Ruptura. Una obra colectiva emblemática de la Ruptura es la exposición de Osaka 70. Metodología: Se analiza la labor del artista como una forma peculiar de antropología, particularmente de etnografía. Se plante aun análisis hermenéutico de la obra plástica desde la bioética. Resultados: Los Murales de Osaka son 11 aportaciones de gran formato, con títulos que reflejan problemáticas de la repercusión del desarrollo tecnocientífico de los países más desarrollados sobre los menos desarrollados. 1970 coincide con el nacimiento de un nuevo campo del saber, la bioética, interesada por temas afines a los tratados por estos artistas plásticos. Discusión: Cada uno de los Murales de Osaka muestra una problemática que la bioética ha analizado en sus inicios, coincidiendo con la Exposición, o en décadas posteriores. Conclusiones: El artista efectivamente puede actuar como un intérprete de la cultura y la obra producida puede tener diferentes interpretaciones, como la que se ha hecho aquí desde la bioética.
Determining Auspicious Days for Weddings and Circumcisions in Kuta Traditional Village
Authors: Prabawati Mega Nur , Mulyani Eva , Muslim Siska Ryane 
Published: December 2024

Penelitian ini menyelidiki filosofi dan aktivitas matematika yang tertanam dalam menentukan hari baik untuk upacara pernikahan dan khitanan di Desa Adat Kuta. Dengan menggunakan metode penelitian kualitatif dengan pendekatan etnografi, pengumpulan data dilakukan melalui observasi, wawancara, dan dokumentasi terhadap tokoh adat, tetua adat, dan anggota masyarakat. Temuan ini mengungkapkan enam aktivitas matematika mendasar yang selaras dengan nilai-nilai budaya lokal: penghitungan (digunakan untuk menghitung kesesuaian dan menentukan hari baik), penempatan (untuk mengidentifikasi tanggal terlarang dan posisi spasial), pengukuran (untuk mengurutkan hari dan menyelaraskan waktu), perancangan (untuk mengatur tanggal dan waktu menurut adat istiadat), bermain (mengamati aturan dan menafsirkan hasil), dan menjelaskan (memberikan interpretasi perhitungan yang bermakna). Studi ini menunjukkan bahwa praktik etnomatematika ini tidak hanya mendukung tradisi lokal tetapi juga memperkuat identitas budaya dan warisan masyarakat Kuta. Integrasi konsep matematika seperti penjumlahan, pembagian, modulo aritmatika, dan barisan aritmatika dalam kebiasaan ini mengungkapkan hubungan rumit antara matematika dan praktik budaya, menawarkan perspektif unik untuk pendidikan matematika yang responsif terhadap budaya.
This study investigates the philosophy and mathematical activities embedded in determining auspicious days for marriage and circumcision ceremonies in Kuta Traditional Village. Employing qualitative research methods with an ethnographic approach, data were gathered through observations, interviews, and documentation from traditional leaders, elders, and community members. The findings reveal six fundamental mathematical activities that align with local cultural values: counting (used in calculating compatibility and determining favorable days), locating (for identifying restricted dates and spatial positions), measuring (for sequencing days and aligning timings), designing (for organizing dates and times according to customs), playing (observing rules and interpreting outcomes), and explaining (providing meaningful interpretations of calculations). This study demonstrates that these ethnomathematical practices not only support local traditions but also reinforce the cultural identity and heritage of the Kuta community. The integration of mathematical concepts such as addition, division, modulo arithmetic, and arithmetic sequences within these customs reveals the intricate relationship between mathematics and cultural practices, offering a unique perspective for culturally responsive mathematics education.

Keyword: Ethnomathematic; philosophy; mathematical activities; goodday of marriage and circumcision.
Asymptotic behaviour for the heat equation with weak convection and absorption
Authors: Claudi S. , Guarguaglini F.R. 
Published: December 2024

We study the large time behaviour of nonnegative solutions of the Cauchy problem [Formula: see text] where $m\Egeq 2$ , $p>1$ and $u_0 \in L^1({\EBbbR})$ . We prove that in this range for $m$ the diffusion term prevails over the convection one, thus obtaining the asymptotic profile of the solution in $L^q({\EBbbR})$ ( $1\Eleq q\Eleq +\infty$ ).
Boundary controllability of the one‐dimensional wave equation with rapidly oscillating density
Authors: Castro C. 
Published: December 2024

We consider the one‐dimensional wave equation with periodic density $\rho$ of period $\varepsilon\to0$ in a bounded interval. By a counterexample due to Avellaneda, Bardos and Rauch we know that the exact controllability property does not hold uniformly as $\varepsilon\to0$ when the control acts on one of the extremes of the interval. The reason is that the eigenfunctions with wavelength of the order of $\varepsilon$ may have a singular behavior so that their total energy cannot be uniformly estimated by the energy observed on one of the extremes of the interval. We give partial controllability results for the projection of the solutions over the subspaces generated by the eigenfunctions with wavelength larger and shorter than $\varepsilon$ . Both results are sharp. We use recent results on the asymptotic behavior of the spectrum with respect to the oscillation parameter $\varepsilon$ , the theory of nonharmonic Fourier series and the Hilbert uniqueness method (HUM).
Around the best constants for the Sobolev trace map from W1,1(Ω) into L1(∂Ω)
Authors: Motron Mélissa 
Published: December 2024

In this article, we prove that the best constant for the Sobolev trace map from W1,1( $\mathbb{R}$ N−1× $\mathbb{R}$ +) into L1( $\mathbb{R} $ N−1×{0}) is 1. We deduce from it that when Ω is a bounded open set whose boundary is piecewise C1, the best first constant for the Sobolev trace map γ from W1,1(Ω) into L1(∂Ω) is also 1, in the sense that: for any ε>0, there exists Bε>0 such that for any u in W1,1(Ω), ∫∂Ω|u|≤(1+ε)∫Ω|∇u|+Bε∫Ω|u|. Independently, we prove that the best second constant for Sobolev trace map from W1,1(Ω) into L1(∂Ω) is |∂Ω|/|{Ω}| (where |∂Ω| denotes the (N−1)‐dimensional measure of ∂Ω and |{Ω}| the N‐dimensional measure of Ω) when Ω is a connected open bounded set; in other words, there exists A>0 such that for any u in W1,1(Ω): ∫∂Ω|u|≤A∫Ω|∇u|+ $\dfrac{|\partial{\Omega}|}{|{\Omega}|}$ ∫Ω|u|.
Competition between the surface and the boundary layer energies in a Ginzburg–Landau model of a liquid crystal composite
Authors: Berlyand Leonid , Khruslov Evgen 
Published: December 2024

We consider a nonlinear homogenization problem for a Ginzburg–Landau 3D model with a surface energy term, in a liquid crystalline medium with inclusions. We show that the presence of the inclusions can be accounted for by an effective potential that can be viewed as an effective external field. Our main objective is to compute the contribution of the surface and bulk energies into this potential. We introduce a small parameter ε such that the average distances between the inclusions are of the order of ε, the inclusions sizes are of the order of εα, α>1, and the coefficient in front of the surface energy term, is of the order of εβ. We found that the parametric half‐plane {(α,β): α>1, −∞<β+∞} is partitioned into two parts by a polygonal line, consisting of two linear parts. We show that, on the first part, the surface energy dominates and, on the second part, the boundary layer energy takes over. We focus our attention on the junction (critical or transitional) point, where both the bulk energy of thin layers around the inclusions and the surface energy provide finite contributions into the effective potential. We present explicit formulas for computing the effective potential on the polygonal line and at the critical point in terms of specific surface energy and specific boundary layer energy. We also show that in the domain to the right of the polygonal line, the potential is zero and discuss the homogenized limit in the remaining part of the half plane. Our proof is based on the quasisolutions method, which incorporates some classical ideas of Stokes in hydrodynamics, as well as variational energy techniques previously developed in the study of linear homogenization problems.
Modeling of a thin film passing a thin porous medium
Authors: Bayada G. , Benhaboucha N. , Chambat M. 
Published: December 2024

We have studied the asymptotic behaviour of a coupling between a thin film of fluid and an adjacent thin porous medium. This situation appears in boundary lubrication problems. We show that there is a critical value between the size of the microstructure of the porous medium, the free fluid gap and the thickness of the porous medium. Moreover it is shown that an actual geometry can always be described by that critical value for which a modified Reynolds equation is proved. Numerical calculations show the difference between our model and two other models proposed in mechanical literature. Résumé. On étudie le comportement asymptotique d'un écoulement fluide constité d'une couche poreuse mince adjacente à un milieu fluide mince. Cette géométrie est caractéristique d'un écoulement lubrifié “limite”. On met en évidence l'existence d'un rapport critique entre la taille de la microstructure du milieu poreux et les deux épaisseurs, rapport pour lequel une équation de Reynolds modifiée est obtenue. De plus il est montré qu'on peut toujours pour une géométrie réelle donnée se placer dans ce cas critique. Enfin, on présente des simulations numériques qui mettent en évidence les différences entre le modèle présenté ici et deux autres utilisés en mécanique.
Geometric tools of the adiabatic complex WKB method
Authors: Fedotov Alexander , Klopp Frédéric 
Published: December 2024

The paper is devoted to the description of the main geometric and analytic tools of a complex WKB method for adiabatic problems. We illustrate their use by numerous examples. Résumé. L'article est consacré à la description des principaux outils géométriques et analytiques d'une méthode WKB complexe pour des problèmes adiabatiques. Nous illustrons leur utilisation par de nombreux exemples.
Quantum resonances without analyticity
Authors: Cancelier Claudy , Martinez André , Ramond Thierry 
Published: December 2024

We propose a definition for the resonances of Schrödinger operators with slowly decaying 𝒞∞ potentials without any analyticity assumption. Our definition is based on almost analytic extensions for these potentials, and we describe a systematic way to build such an extension that coincide with the function itself whenever it is analytic. That way, if the potential is dilation analytic, our resonances are the usual ones. We show that our resonances with negative real part are exactly the eigenvalues of the operator. We also prove that our definition coincides with the usual ones in the case of smooth exponentially decaying potentials. Then we consider semiclassical results. We show that, if the trapped set for some energy E is empty, there is no resonance in any complex vicinity of E of size O(hlog (1/h)). Finally, we investigate the semiclassical shape resonances and generalize some results of Helffer and Sjöstrand.
Convergence of formal solutions of some nonlinear differential systems at an irregular singularity
Authors: Rezaoui Med-Salem 
Published: December 2024

Sibuya was concerned in [Lecture Notes in Math., Vol. 810, 1980, pp. 135–140] with studying analyticity of formal solutions for nonlinear differential systems xp+1 $\[$\frac{\mathrm{d}u}{\mathrm{d}x}$$ =E(x,y,u), where E is an analytic function in its arguments, near the origin. We are aiming in this work, to generalize the previous Sibuya's paper to nonlinear differential systems A(x) $\[$\frac{\mathrm{d}u}{\mathrm{d}x}$$ =E(x,y,u), where A(x) is an N×N matrix, whose entries are holomorphic near the origin. Sibuya s'est intéressé dans [Lecture Notes in Math., Vol. 810, 1980, pp. 135–140] à l'analyticité des solutions formelles des systèmes différentiels non linéaires xp+1 $\[$\frac{\mathrm{d}u}{\mathrm{d}x}$$ =E(x,y,u), où E est une fonction analytique en ses arguments, au voisinage de l'origine. Nous nous intéressons dans ce travail, à généraliser le résultat de Sibuya aux systèmes différentiels non linéaires A(x) $\[$\frac{\mathrm{d}u}{\mathrm{d}x}$$ =E(x,y,u), où A(x) est une matrice carrée N×N, à coefficients holomorphes au voisinage de l'origine.
Asymptotic behavior of weak solutions to nonlinear thermoviscoelastic systems with constant temperature boundary conditions
Authors: Shang Chanyu 
Published: December 2024

This paper deals with the one-dimensional nonlinear thermoviscoelastic system subject to constant temperature boundary conditions, describing phase transitions in shape memory alloys. We shall prove the global existence and uniqueness of the weak solution for initial data (strain, velocity, absolute temperature) (u0, v0, θ0)∈L∞×W01,∞×H1. Furthermore, we investigate the asymptotic behavior as time tends to infinity and establish the following asymptotic properties for the weak solution: As t→∞, v→0 in H1(0, 1), θ→T0 in L∞(0, 1), u(x, t)→u∞(x) a.e., where u∞∈L∞ is a stationary state satisfying f1(u∞)T0+f2(u∞)=0, a.e., in [0, 1]. Here we work in a framework in which u belongs to L∞ to describe phase transitions between different configurations of crystal lattices.
Very Simple Chaitin Machines for Concrete AIT
Authors: Stay Michael 
Published: December 2024

In 1975, Chaitin introduced his celebrated Omega number, the halting probability of a universal Chaitin machine, a universal Turing machine with a prefix-free domain. The Omega number's bits are algorithmically random–there is no reason the bits should be the way they are, if we define "reason" to be a computable explanation smaller than the data itself. Since that time, only two explicit universal Chaitin machines have been proposed, both by Chaitin himself. Concrete algorithmic information theory involves the study of particular universal Turing machines, about which one can state theorems with specific numerical bounds, rather than include terms like O(1). We present several new tiny Chaitin machines (those with a prefix-free domain) suitable for the study of concrete algorithmic information theory. One of the machines, which we call Keraia, is a binary encoding of lambda calculus based on a curried lambda operator. Source code is included in the appendices. We also give an algorithm for restricting the domain of blank-endmarker machines to a prefix-free domain over an alphabet that does not include the endmarker; this allows one to take many universal Turing machines and construct universal Chaitin machines from them.
Pruning Operators for Disjunctive Logic Programming Systems
Authors: Calimeri Francesco , Faber Wolfgang , Pfeifer Gerald , Leone Nicola 
Published: December 2024

Disjunctive Logic Programming (DLP) is an advanced formalism for knowledge representation and reasoning. The language of DLP is very expressive and supports the representation of problems of high computational complexity (specifically, all problems in the complexity class Σ ^p_2 =NP ^{NP} ). The DLP encoding of a large variety of problems is often very concise, simple, and elegant. In this paper, we explain the computational process commonly performed by DLP systems, with a focus on search space pruning, which is crucial for the efficiency of such systems. We present two suitable operators for pruning (Fitting's and Well-founded), discuss their peculiarities and differences with respect to efficiency and effectiveness. We design an intelligent strategy for combining the two operators, exploiting the advantages of both. We implement our approach in DLV – the state-of-the-art DLP system – and perform some experiments. These experiments show interesting results, and evidence how the choice of the pruning operator affects the performance of DLP systems.
Multiple Images Embedding Scheme Based on Moment Preserving Block	Truncation Coding
Authors: Hu Yu-Chen 
Published: December 2024

A low-complexity grayscale image embedding scheme that can embed multiple secret images is proposed in this paper. In this scheme, different users can extract different secret images according to the secret keys they hold. To reduce the storage cost of the secret images, each of the secret images is first compressed using an improved version of the moment preserving block truncation coding scheme. The compressed message of each secret image is then encrypted by the DES cryptography system with different secret key and then embedded into the host image using the modulus least-significant-bit substitution technique. According to the experimental results, it is shown that the proposed scheme consumes a little computational cost. Besides, different users can extract different number of secret images. In other words, the proposed scheme indeed provides a good approach for the hiding of grayscale images with access control.
Time Distribution in Structural Workflow Nets
Authors: Chrz�stowski-Wachtel Piotr , Findeisen Paweł , Wolny Grzegorz 
Published: December 2024

Workflows with transition execution times having exponential distributions are considered. The aim is to determine the overall execution time without looking into the reachability space and its analysis using Markov processes. We concentrate on the so called structural workflows, which are represented with Petri nets constructed by means of specific refinement rules. With each refinement rule (sequence, choice, parallelization, loop) we associate formulas which allow to compute the overall execution time distribution. The class of exponential distributions is too narrow to keep the result within itself. We analyze the so called exponential polynomials, generalizing exponential distributions. They are closed under SUM and MAX functions. This closure property combined with the knowledge of refinements history enables us to find the requested formulas.
Modelling and Simulation of Quantum Teleportation and Dense Coding	Using Predicate/Transition-Nets
Authors: Varpaaniemi Kimmo , Ojala Leo 
Published: December 2024

Reachability analysis is one of the most successful methods used in design and validation of protocols for classical communication, whereas the predicate/transition-net formalism is one of the most appropriate formalisms for reachability analysis oriented modelling. Quantum teleportation and dense coding are non-classical communication protocols that have been widely researched in the field of quantum computing. In this article, we present predicate/transitionnet models of these two protocols and use the PROD reachability analysis tool for analysing the models.
Hepatitis B in Poland in 2022
Authors: Stępień Małgorzata , Myszka-Szymanowska Patrycja 
Published: December 2024

ObjectiveAssessment of the epidemiological situation of hepatitis B in Poland in 2022 compared to previous years, considering the impact of the COVID-19 pandemic.Material and methodsThe epidemiological situation was assessed based on the analysis of data from individual reports on hepatitis B and HBV infections registered by local sanitary and epidemiological stations in the Epibaza electronic system. Data published in the annual bulletins "Infectious diseases and poisonings in Poland" and "Vaccinations in Poland" and data on deaths were also used.ResultsIn 2022, a total of 2,500 cases of hepatitis B were registered, including 29 cases of acute hepatitis B. The incidence of acute hepatitis B was 0.08/100,000 and was more than 2.5 times higher than in 2021. Acute hepatitis B cases occurred in 11 of 16 voivodeships, most in the Mazowieckie voivodeship. 45% of acute cases were infections among migrants, there were no cases among children and young adults up to 25 years of age. In 2022, 2,471 chronic and unknown-phase cases (UNK) were registered, the diagnosis rate was 6.53/100,000 and was lower by 21% than the median for 2016-2020. 8.7% of chronic and UNK cases were considered imported, mostly from Ukraine. The most frequently identified probable route of infection was transmission by medical procedures. The vaccination coverage of 1-year-olds with 3 doses of hepatitis B vaccine was slightly higher than in 2021 and amounted to 89.8%.ConclusionsIn 2022, a further increase in the number of diagnosed hepatitis B and HBV infections was observed, after a sharp decline in the first year of the COVID-19 pandemic. The increase in the number of diagnosed hepatitis B cases in 2022 was also influenced by the wave of migration from Ukraine. In 2022, the previously observed decline in vaccination coverage in 1-year-olds with 3 doses of hepatitis B vaccine was stopped.