Search

In this article, a simple refined shear deformation theory that eliminates the use of a shear correction factor was presented for buckling analysis of in-plane bi-directional functionally graded (IBFG) porous plates under various boundary conditions. Unlike any other theory, the number of unknown functions involved is only four, as against five in case of other shear deformation theories. Material properties of IBFG are assumed to vary continuously along with two different directions simultaneously, that is, the longitudinal and transversal ones, respectively. Governing equations and boundary conditions are derived. Analytical solutions were obtained for buckling analysis of (IBFG) porous plates. Several numerical examples are presented to demonstrate the performance and effectiveness of the proposed theory. The effects of material gradations, aspect ratios, and porosity on IBFG plate responses are examined in detail as well. [ABSTRACT FROM AUTHOR]

In this work, the two-scale asymptotic homogenization method (AHM) is developed to describe the effective behavior of multi-laminated elastic micropolar composites with Fibonacci and random structure under perfect contact conditions at the interfaces. The local problem statements over the periodic cell Y are presented, and the corresponding effective stiffness and torque properties are reported. The transversal cross-section of the periodic cell Y is characterized by a laminated structure where the pattern for the layers follows two distinct configurations: (a) a Fibonacci arrangement, and (b) a random sequence focused on the probabilistic binomial function. The non-null effective properties of multi-laminated Cosserat elastic composites with isotropic centro-symmetric constituents are listed. Numerical results for multi-laminated elastic micropolar composites with both types of structures and centro-symmetric isotropic constituents are illustrated and discussed. The overall effective behavior for both cases converges to specific effective values of periodic structures as the number of layers increases. [ABSTRACT FROM AUTHOR]

We consider playing the game of Tic‐Tac‐Toe on block designs BIBD(v,k,λ) $(v,k,\lambda)$ and transversal designs TD(k,n) $(k,n)$. Players take turns choosing points and the first player to complete a block wins the game. We show that triple systems, BIBD(v,3,λ) $(v,3,\lambda)$, are a first‐player win if and only if v≥5 $v\ge 5$. Further, we show that for k=2,3 $k=2,3$, TD(k,n) $(k,n)$ is a first‐player win if and only if n≥k $n\ge k$. We also consider a weak version of the game, called Maker–Breaker, in which the second player wins if they can stop the first player from winning. In this case, we adapt known bounds for when either the first or second player can win on BIBD(v,k,1) $(v,k,1)$ and TD(k,n) $(k,n)$, and show that for Maker–Breaker, BIBD(v,4,1) $(v,4,1)$ is a first‐player win if and only if v≥16 $v\ge 16$. We show that TD(4,4) $(4,4)$ is a second‐player win, and so the second player can force a draw in the regular game by playing the same strategy. [ABSTRACT FROM AUTHOR]

An irreducible triangulation is a plane graph such that its outer face is a quadrangle, every inner face is a triangle, and it has no separating triangle. Let T be an irreducible triangulation with n vertices. A rectangular dual R of T is a dissection of a rectangle into (small) rectangles such that (1) each rectangle of R corresponds to a vertex of T , and (2) two rectangles of R are adjacent if the two corresponding vertices of T are adjacent. Finding a rectangular dual of a given graph has an application on cartograms and VLSI floor-planning. In this paper, we consider the problem of enumerating all the rectangular duals of a given irreducible triangulation. It is known that the set of rectangular duals of an irreducible triangulation T one-to-one corresponds to the set of transversal edge-partitions of T. Hence, in this paper, we design an enumeration algorithm of all the transversal edge-partitions of an irreducible triangulation with n vertices. The proposed algorithm enumerates them in O (n) -delay and O (n 2) -space after O (n log n) -time preprocessing. [ABSTRACT FROM AUTHOR]

This paper presents a tri-band bandpass filter (BPF) based on transversal signal interference concepts. The proposed tri-band BPF is separately constructed by a T-folded-shaped shorted folded stub loaded resonator and parallel coupled square ring loaded resonator. By the odd-even mode analysis method, the presented filter excites eight transmission poles (TPs), where the first two TPs form the first passband, and the last two passbands are both composed of three TPs. Based on the transversal transmission path, seven transmission zeros (TZs) are excited improving the selectivity dramatically. Moreover, it features independently controllable band characteristics for each passband. To validate the proposed filter, a prototype tri-wideband BPF operating at 2.45 GHz, 3.17 GHz, and 4.91 GHz with 3-dB fraction bandwidth (fbw) of 17.6%, 27.1%, and 17.7% for LTE, WiMAX, Wi-Fi, and 5 G applications is designed, manufactured, and measured, showing great agreement with theoretical predictions and excellent performance, including sharp shirts, high band-to-band isolation (Iso), and compact size. [ABSTRACT FROM AUTHOR]

Copyright of Signa is the property of Editorial UNED and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Unlike the conventional, embodied, and embrained whole-body movements in the sagittal forward and vertical axes, movements in the lateral/transversal axis cannot be unequivocally grounded, embodied, or embrained. When considering motor imagery for left and right directions, it is assumed that participants have underdeveloped representations due to a lack of familiarity with moving along the lateral axis. In the current study, a 32 electroencephalography (EEG) system was used to identify the oscillatory neural signature linked with lateral axis motor imagery. Following the experimental procedure, 36 healthy participants were instructed and trained to imagine moving left and right from a first-person perspective. On average, greater beta oscillatory activity in the parietal region was observed during right motor imagery compared to left motor imagery. Furthermore, lateral whole-body motion imagery is associated with the posterior multimodal somatosensory parietal areas, which showed significantly more prominent cortico-cortical interconnections when performing right than left motor imagery, as indicated by Phase-Locked Value (PLV) analysis. The findings suggest that the mental simulation of lateral movements, reflecting immature neurocognitive schemata, might engender non-grounded and non-embedded somatosensory and kinesthetic representations that would be associated with the lateralisation of the multimodal cortical vestibular network. [ABSTRACT FROM AUTHOR]

A graph is (I , F) - partitionable if its vertex set can be partitioned into two parts such that one part I is an independent set, and the other F induces a forest. A graph is k - degenerate if every subgraph H contains a vertex of degree at most k in H. Bernshteyn and Lee defined a generalization of k -degenerate graphs, which is called weakly k -degenerate. In this paper, we show that planar graphs without 4-, 7-, 9-cycles, and 5-cycles normally adjacent to 3-cycles are both (I , F) -partitionable and weakly 2-degenerate. [ABSTRACT FROM AUTHOR]

The article focuses on Domenico Losurdo’s subtle but important distinction between ‘horizontal racialisation’ and ‘transversal racialisation’. A grasp of what is at play in Nietzsche’s conception of the latter allows one to appreciate Nietzsche’s politics in its most disturbing and sinister aspect. It also uncovers revealing affinities with the decisively Nietzsche-influenced political vision of the über-fascist thinker, Julius Evola. Attention to this whole dimension of Nietzsche’s thought helps to vindicate Losurdo’s fundamental claim that Nietzsche is far more focused on politics than most contemporary philosophical commentators are willing to acknowledge. [ABSTRACT FROM AUTHOR]

When a 90∘$90^\circ$‐elbowed pipe conveys a flow, the fluid deviation generates a transversal force on the tube. So, if the pipe is flexible, it may be deformed. In this experimental and theoretical work, we study the static deflection of a flexible pipe whose upper extreme is clamped while the other, lower, elbowed end is free. When water discharges, a follower force acts onto the free extreme which is proportional to the square of the fluid's velocity. We establish an analytical expression for the free extreme's deflection when the system's weight is neglected and solve the differential equation when its weight is taken into account. An experimental device is mounted which allows to easily record various deflection measurements as the fluid's velocity varies. Our experimental points are in agreement with the theory. They roughly align around the same line when dimensionless numbers are considered since theoretical deviation from a weight‐negligible system is lower than 20%$20\%$ in our experiments. [ABSTRACT FROM AUTHOR]

A new coplanar waveguide (CPW) spoof surface plasmon polariton (SSPP) transmission line (TL) with mushroom structures is proposed. The analyses of the equivalent circuit reveal that the proposed SSPP requires shorter longitudinal length and also more compact size occupation than the conventional unloaded SSPP TL for achieving the same asymptotic frequency. Besides, the dispersion curve of the proposed SSPP can be controlled flexibly without changing the transversal geometric dimensions. To illustrate the design principle, a SSPP TL is designed, fabricated, and tested. It is validated that the utilization of mush-room structures is beneficial to the size reduction of the plasmonic devices. [ABSTRACT FROM AUTHOR]

We consider the classical vacua of the Weinberg–Salam (WS) model of electroweak forces. These are no-particle, static solutions to the WS equations minimizing the WS energy locally. We study the WS vacuum solutions exhibiting a non-vanishing average magnetic field of strength b and prove that (i) there is a magnetic field threshold b ∗ such that for b < b ∗ , the vacua are translationally invariant (and the magnetic field is constant), while, for b > b ∗ , they are not, (ii) for b > b ∗ , there are non-translationally invariant solutions with lower energy per unit volume and with the discrete translational symmetry of a 2D lattice in the plane transversal to b, and (iii) the lattice minimizing the energy per unit volume approaches the hexagonal one as the magnetic field strength approaches the threshold b ∗ . In the absence of particles, the Weinberg–Salam model reduces to the Yang–Mills–Higgs (YMH) equations for the gauge group U(2). Thus, our results can be rephrased as the corresponding statements about the U(2)-YMH equations. [ABSTRACT FROM AUTHOR]

This paper studies two variants of defective acyclic coloring of planar graphs. For a graph G $G$ and a coloring φ $\varphi $ of G $G$, a 2‐colored cycle (2CC) transversal is a subset E′ ${E}^{^{\prime} }$ of E(G) $E(G)$ that intersects every 2‐colored cycle. Let k $k$ be a positive integer. We denote by mk(G) ${m}_{k}(G)$ the minimum integer m $m$ such that G $G$ has a proper k $k$‐coloring which has a 2CC transversal of size m $m$, and by mk′(G) ${m}_{k}^{^{\prime} }(G)$ the minimum size of a subset E′ ${E}^{^{\prime} }$ of E(G) $E(G)$ such that G−E′ $G-{E}^{^{\prime} }$ is acyclic k $k$‐colorable. We prove that for any n $n$‐vertex 3‐colorable planar graph G,m3(G)≤n−3 $G,{m}_{3}(G)\le n-3$ and for any planar graph G,m4(G)≤n−5 $G,{m}_{4}(G)\le n-5$ provided that n≥5 $n\ge 5$. We show that these upper bounds are sharp: there are infinitely many planar graphs attaining these upper bounds. Moreover, the minimum 2CC transversal E′ ${E}^{^{\prime} }$ can be chosen in such a way that E′ ${E}^{^{\prime} }$ induces a forest. We also prove that for any planar graph G,m3′(G)≤(13n−42)∕10 $G,{m}_{3}^{^{\prime} }(G)\le (13n-42)\unicode{x02215}10$ and m4′(G)≤(3n−12)∕5 ${m}_{4}^{^{\prime} }(G)\le (3n-12)\unicode{x02215}5$. [ABSTRACT FROM AUTHOR]

The most recent Colombian civil conflict is widely understood to have its roots in longstanding land conflict that arose from unequal land distribution in the country. In a purported effort to pacify leftist peasant demands for land without angering landholding elites through meaningful land redistribution, starting in the 1950s the Colombian state intensified colonización programmes to settle the eastern territories. This article examines the entanglements of road construction and land politics during this period of colonización, considering the systematic establishment of penetration, transversal and local roads as technologies of land control. Analysing planning documents for one of the most significant highway projects from the period – the Marginal de la Selva – alongside influential research on land colonización, this article argues that the Marginal de la Selva extended patterns of uneven integration and exacerbated exclusion of Indigenous people from their land. [ABSTRACT FROM AUTHOR]

The article reflects if it is possible to decolonize memory in the former Soviet republics that have been gradually moving centrifugally towards different political allegiances. It is needed to go beyond the postcolonial/post-Soviet national optic and consider inter-imperial (Doyle) and non-nation-state post-imperial (Burbank and Cooper) models and other unrealized alternatives. The article focuses on coloniality of memory critically engaging with various concepts including "dismembering" (Thiong'o), "mankurtism" (Aitmatov), "Myalism" (Brodber), "multidirectional memory" (Rothberg), "double critique" (Khatibi), "species memory" (Kaiser and Thiele), and the "third way" (Wynter). It sets the goal of tracing possible paths for rethinking of what it means to remember in a human way and what it takes to engender a global mnemonic transversal network of solidarity for refuturing. [ABSTRACT FROM AUTHOR]

From a biopoetic perspective, the essay moves from a Shakespearean text to argue about the "Human" in medicine, through research questions about Adult Learning in caring professions. Applying the Morenian perspective to the context of medical education, it presents the case of the courses in Transversal Skills and of the Scientific-Literary Seminars of the Medicine School of UniBA. [ABSTRACT FROM AUTHOR]

In this paper, a novel dual‐band wideband bandpass filter (BPF) based on transversal signal‐interaction concepts with a wide upper stopband is proposed and investigated. The designed specification of two passbands can be managed and satisfied based on the independent controllable fractional bandwidth of the two passbands and the centered frequencies. The centered frequencies of dual‐band BPF are, respectively, 0.79 GHz (ƒ1) and 1.24 GHz (ƒ2) with 3 dB fraction bandwidths of 26.54% and 11.3%. Two transmission paths consisting of coupled stub‐loaded square ring resonators and anti‐coupled shorted lines are used to realize signal cancellation of multiple transmission path signal transmission from Port 1 to Port 2. Eleven transmission zeros (TZs) modify harmonic suppression up to 10 ƒ1 with stopband rejection higher than 15 dB. Butterworth lumped notch network and step impedance resonator (SIR) are also utilized to improve the selectivity and harmonic suppression. A compact filter with a circuit size of 0.08λg × 0.08λg is implemented and tested. Good agreement between simulation and measured results verifies the reliability of the designing scheme. [ABSTRACT FROM AUTHOR]

Copyright of Aequitas: Journal of Human Development, Disability & Social Change / Revue de Développement Humain, Handicap et Changement Social is the property of Reseau international sur le Processus de production du handicap, RIPPH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Arid Zone Research / Ganhanqu Yanjiu is the property of Arid Zone Research Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper focuses on investigating the well-posedness and stabilization of the generalized Rao-Nakra beam equation. The system consists of four wave equations for the longitudinal displacements and the shear angle of the top and bottom layers and one Euler-Bernoulli beam equation for the transversal displacement. First, we prove that the system is well-posed. Second, we show that the analytic stability holds when all the displacements are globally damped through Kelvin-Voigt damping. Third, we establish the case where the damping acts only on the shear angle displacements of the top and bottom layers. In this case, we prove, by using frequency domain arguments combined with the multiplier method, that the energy of the system decays polynomially with a decay rate $ t^{-\frac{1}{2}} $. [ABSTRACT FROM AUTHOR]

Automating decision systems has led to hidden biases in the use of artificial intelligence (AI). Consequently, explaining these decisions and identifying responsibilities has become a challenge. As a result, a new field of research on algorithmic fairness has emerged. In this area, detecting biases and mitigating them is essential to ensure fair and discrimination-free decisions. This paper contributes with: (1) a categorization of biases and how these are associated with different phases of an AI model's development (including the data-generation phase); (2) a revision of fairness metrics to audit the data and AI models trained with them (considering agnostic models when focusing on fairness); and, (3) a novel taxonomy of the procedures to mitigate biases in the different phases of an AI model's development (pre-processing, training, and post-processing) with the addition of transversal actions that help to produce fairer models. [ABSTRACT FROM AUTHOR]

The eight papers in the Special Dossier for the Tricentenary of Immanuel Kant’s Birth (1724-1804) ‘Borders, Races, Gender and Labor in Kantian Philosophy’ reflect upon these issues and their presence in the Kantian legacy from a contemporary point of view. Other concepts and themes emerge as transversal threads linking these contributions, such as the feeling of respect, duties, rights, and the role that communities play or the ethical-juridical function of the social contract. Other philosophers and philosophical traditions take part in the discussions, such as Rousseau, Fichte, Hegel, Derrida, Foucault, Hannah Arendt, or Susan Moller Okin. The result is a wide perspective that invites us to return to Kantian texts. [ABSTRACT FROM AUTHOR]

Copyright of Environmental & Social Management Journal / Revista de Gestão Social e Ambiental is the property of Environmental & Social Management Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

It is well-known that every tournament contains a Hamilton path, and every strongly connected tournament contains a Hamilton cycle. This paper establishes transversal generalizations of these classical results. For a collection T = (T 1 , ⋯ , T m) of not-necessarily distinct tournaments on a common vertex set V, an m-edge directed graph D with vertices in V is called a T -transversal if there exists a bijection ϕ : E (D) → [ m ] such that e ∈ E (T ϕ (e)) for all e ∈ E (D) . We prove that for sufficiently large m with m = | V | - 1 , there exists a T -transversal Hamilton path. Moreover, if m = | V | and at least m - 1 of the tournaments T 1 , ... , T m are assumed to be strongly connected, then there is a T -transversal Hamilton cycle. In our proof, we utilize a novel way of partitioning tournaments which we dub H -partition. [ABSTRACT FROM AUTHOR]

As a generalization of transversal and radical transversal screen slant lightlike submersions, we introduce the notion of radical transversal screen pseudo-slant lightlike submersions from indefinite Sasakian manifolds onto lightlike manifolds with examples. We obtain an existence theorem for such lightlike submersions and study the geometry of distributions involved in the definition. [ABSTRACT FROM AUTHOR]

We prove that for all n>1 $n\gt 1$ every latin n $n$‐dimensional cube of order 5 has transversals. We find all 123 paratopy classes of layer‐latin cubes of order 5 with no transversals. For each n≥3 $n\ge 3$ and q≥3 $q\ge 3$ we construct a (2q−2)×q×⋯×q $(2q-2)\times q\times {\rm{\cdots }}\times q$ latin n $n$‐dimensional cuboid of order q $q$ with no transversals. Moreover, we find all paratopy classes of nonextendible and noncompletable latin cuboids of order 5. [ABSTRACT FROM AUTHOR]

A cover of a graph G is a graph H with vertex set V (H) = ∪v∈V(G)Lv, where Lv = {v} × [s], and the edge set M = ∪uv∈E(G)Muv, where Muv is a matching between Lu and Lv. A vertex set T ⊆ V (H) is a transversal of H if ∣T ∩ Lv∣ = 1 for each v ∈ V(G). Let f be a nonnegative integer valued function on the vertex-set of H. If for any nonempty subgraph Γ of H[T], there exists a vertex x ∈ V (H) such that d(x) < f(x), then T is called a strictly f-degenerate transversal. In this paper, we give a sufficient condition for the existence of strictly f-degenerate transversal for planar graphs without chorded 6-cycles. As a consequence, every planar graph without subgraphs isomorphic to the configurations is DP-4-colorable. [ABSTRACT FROM AUTHOR]

The fascial system has gained recognition for its integral role in connecting skin, superficial and deep fasciae, and underlying muscles. However, consensus on its microstructure depending on its topography remains elusive as well as its implications in clinical practices, such as reconstructive surgery and physiotherapy techniques. This study focuses on the iliotibial tract (ITT) implicated in the iliotibial band syndrome. The goal is to describe microstructural characteristics using classical 2D histology and cryogenic contrast‐enhanced microcomputed tomography (cryo‐CECT) such as the total thickness, number of layers, layer thickness, fibre orientation and tortuosity, according to the specific topography. The total thickness of the ITT varied across topographic regions, with the superior part being on average thicker but non‐significantly different from the other regions. The inferior part showed heterogeneity, with the anterior region (AI) being the thinnest and the posterior one (PI) the thickest. The ITT exhibited 1–3 layers, with no significant differences among regions. Most commonly, it consisted of two layers, except for the antero‐superior (AS) and antero‐middle (AM) regions, which sometimes had only one layer. The posterior regions frequently had 2 or 3 layers, with the PI region having the highest mean (2.7 layers). The intermediate layer was the thickest one, varying from the AI region (0.368 mm ± 0.114) to the PI region (0.640 mm ± 0.305). The superficial layer showed regional variability, with the AS region being the thinnest. The deep layer appeared thinner than the superficial one. Fibre orientation analysis indicated that the intermediate layer mainly consisted of oblique longitudinal fibres, orientated downward and forward, while the superficial and deep layers had transversal or oblique transversal fibres. Cryo‐CECT 3D observations confirmed these findings, revealing distinct orientations for different layers. Fibre tortuosity exhibited differences based on orientation. Transversal fibres (>65°) were significantly less tortuous than longitudinal fibres (<25°) and oblique intermediate fibres (25°–65°), aligning with 3D plot observations. This quantitative study highlights various microstructural characteristics of the ITT, offering insights into its regional variations. The analysis accuracy is increased due to the novel technology of cryo‐CECT which emerges as a valuable tool for precise assessment of 3D fibre orientation and tortuosity. These findings contribute to a deeper understanding of the ITT structure, useful in clinical practices, such as reconstructive surgery and physiotherapy, and future research endeavours. [ABSTRACT FROM AUTHOR]

The concept of standard basis for a module is generalized to that for a mixed module that can be written as sums of more than one modules over different rings. An algorithm to compute a standard basis for a mixed module is presented, along with a proof of its correctness and termination in finite steps. The algorithm is demonstrated in several examples appearing in computations of codimensions of divergent diagrams. A parametric extension of the standard basis (comprehensive standard system, CSS) for a mixed-module is also presented, along with a proof of its correctness and termination in finite steps and its computational algorithms. The algorithm is demonstrated in several examples in the classification of divergent diagrams including applications of Mather's lemma and the complete transversal theorem. [ABSTRACT FROM AUTHOR]

The paper documents the emergence of precarious local and migrant tenants as political subjects that build transversal housing solidarities in Greek cities amidst multiple intersecting crises. In doing so, I introduce the feminist concept of transversal solidarities to housing studies and expand it by bringing it in dialogue with debates on housing precarity. Understanding transversal solidarity as an integral part of housing struggles and as an important theoretical concept in debates on housing precarity, I argue, is a crucial step forward to housing theory as it foregrounds transversal housing solidarities as translocal and intersectional processes through which collective political subjects emerge. Drawing from rent struggles in Greece, I demonstrate that transversal housing solidarities are being built across space, time and subjects: they are local and place-based initiatives, embedded in broader networks of trans-local solidarities that are generative of concrete social and political alternatives to the neoliberal housing model. [ABSTRACT FROM AUTHOR]

The Pacific hake Merluccius productus is a commercially important species on the west coast of North America. A non-exploited population south of the Baja California Peninsula known as dwarf hake, from which little is known, has been described. The present study analyzed the age and growth of the dwarf hake off the west coast of Baja California Sur, Mexico. A subsample of 240 otoliths and standard length (SL) data from 932 specimens captured from May to December 2015 was used. The annual formation of increments in otoliths was verified by marginal increment ratio and edge analysis. Age was estimated from transversal sectioned otolith annuli counts, and SL growth was analyzed using a multimodel inference approach. The von Bertalanffy growth model (VBGM), generalized VBGM, Gompertz, logistic, and Johnson growth models were fitted to observed and back-calculated length-at-age data sets grouped by sex. SL records ranged from 11.5 to 27.5 cm, where females reached a larger size and older ages than males. The age structure was well represented for the first six years, with a mode at three years age class and maximum longevity registered in a female of 10 years. According to Akaike's information criterion, the generalized VBGM was most appropriate for females (L∞ = 31.36 cm, k = 0.15), while VBGM provided the best fit for males (L∞ = 25.35 cm, k = 0.28 cm yr-1). The parameter values suggest that the dwarf hake is a fast-growing, small-size fish. These results provide the first estimated growth parameters for the dwarf hake off the southernmost limit of the Baja California Peninsula. [ABSTRACT FROM AUTHOR]

Self-diffusion along the longitudinal coordinate in a channel of varying cross section is considered. The starting point is the two-dimensional Enskog-Boltzmann-Lorentz kinetic equation with appropriated boundary conditions. It is integrated over the transversal coordinate to get an approximated one-dimensional kinetic equation, keeping the relevant properties of the original one. Then, a macroscopic equation for the time evolution of the longitudinal density is derived, by means of a modified Chapman-Enskog expansion method, that takes into account the inhomogeneity of the equilibrium longitudinal density. This transport equation has the form of the phenomenological Ficks-Jacobs equation, but with an effective diffusion coefficient that contains corrections associated to the variation of the slope of the equilibrium longitudinal density profile. [ABSTRACT FROM AUTHOR]

Let 퐺 be a finite group, and let 퐻 be a subgroup of 퐺. We compute the probability, denoted by P G ⁢ (H) , that a left transversal of 퐻 in 퐺 is also a right transversal, thus a two-sided one. Moreover, we define, and denote by tp ⁡ (G) , the common transversal probability of 퐺 to be the minimum, taken over all subgroups 퐻 of 퐺, of P G ⁢ (H) . We prove a number of results regarding the invariant tp ⁡ (G) , like lower and upper bounds, and possible values it can attain. We also show that tp ⁡ (G) determines structural properties of 퐺. Finally, several open problems are formulated and discussed. [ABSTRACT FROM AUTHOR]

A vertex v clique dominates a clique l if v is incident on l. A set D ⊆ V is a clique transversal set if every clique in G is clique dominated by some vertex in D. The clique transversal number τc = τc(G) is the cardinality of a minimum clique transversal set of G. This paper explores properties of vertices and edges based on their membership in all, at least one but not all, or none of the clique transversal sets. A graph G is defined as τc-dot-critical if contracting any edge reduces the clique transversal number. We establish bounds for τc-dotcritical graphs and a lower bound for the full open domination number of a graph in terms of the maximum signature. [ABSTRACT FROM AUTHOR]

The document "Spanish Translated Abstracts" from the journal "PM & R: Journal of Injury, Function & Rehabilitation" discusses various research studies related to different medical topics. These studies include evaluating the use of onabotulinumtoxinA for treating spasticity, assessing the association between electrodiagnostic studies and neuromuscular ultrasound in carpal tunnel syndrome, describing injury rates in high school track and field athletes, examining risk factors for Achilles tendon injuries in long-distance runners, exploring the integration of dogs in pediatric rehabilitation therapy, correlating patient-reported physical function with objective measures in cancer survivors, and characterizing functional outcomes in COVID-19 survivors undergoing rehabilitation. The studies provide valuable insights into different aspects of injury, rehabilitation, and medical care, highlighting the importance of patient-centered approaches and evidence-based treatments. [Extracted from the article]

We investigate the list packing number of a graph, the least $k$ such that there are always $k$ disjoint proper list-colourings whenever we have lists all of size $k$ associated to the vertices. We are curious how the behaviour of the list packing number contrasts with that of the list chromatic number, particularly in the context of bounded degree graphs. The main question we pursue is whether every graph with maximum degree $\Delta$ has list packing number at most $\Delta +1$. Our results highlight the subtleties of list packing and the barriers to, for example, pursuing a Brooks'-type theorem for the list packing number. [ABSTRACT FROM AUTHOR]

This survey paper presents recent relevant research in mathematics education produced in Spain, which allows the identification of different broad lines of research developed by Spanish groups of scholars. First, we present and describe studies whose research objectives are related to student learning of specific curricular contents and process-oriented competencies, namely arithmetic, algebra, geometry, functions and calculus, probability and statistics, and argumentation or proof in geometric contexts. Next, we present characteristics and foci of investigations dealing with different aspects of mathematics teacher education, encompassing a large part of Spanish research in mathematics education. The descriptions of other transversal lines of research complement the previous two big blocks: research on students with special educational needs and the effects of using technology in different curricular contents and educational levels. Finally, we report on the research activities and advances of Spanish research in mathematics education from two main theoretical frameworks created or developed by Spanish researchers. This plurality of research strands also corresponds to a wide range of international collaborations, especially with Latin American colleagues. [ABSTRACT FROM AUTHOR]

In finite element models (FEMs), two- or three-dimensional Representative Volume Elements (RVEs) based on a statistical distribution of particles in a matrix can predict mechanical material properties. This article studies an alternative to 3D RVEs with a 2.5D RVE approach defined by a one-plane layer of 3D elements to model the material behavior. This 2.5D RVE relies on springs applied in the out-of-plane direction to constrain the two lateral deformations to be compatible, with the goal of achieving the isotropy of the studied material. The method is experimentally validated by the prediction of the tensile stress–strain curve of a bi-phasic microstructure of the AlSi10Mg alloy. Produced by additive manufacturing, the sample material becomes isotropic after friction stir processing post treatment. If a classical plane strain 2D RVE simulation is clearly too stiff compared to the experiment, the predictions of the stress–strain curves based on 2.5D RVE, 2D RVE with no transversal constraint (called 2D free RVE), and 3D RVE simulations are close to the experiments. The local stress fields within a 2.5D RVE present an interesting similarity with 3D RVE local fields, but differences with the 2D free RVE local results. Since a 2.5D RVE simplifies one spatial dimension, the simulations with this model are faster than the 3D RVE (factor 2580 in CPU or taking into account an optimal parallel computation, a factor 417 in real time). Such a discrepancy can affect the FEM2 multi-scale simulations or the time required to train a neural network, enhancing the interest in a 2.5D RVE model. [ABSTRACT FROM AUTHOR]

In this paper, we consider the following two problems: (i) Deletion Blocker (α) where we are given an undirected graph G = (V , E) and two integers k , d ≥ 1 and ask whether there exists a subset of vertices S ⊆ V with | S | ≤ k such that α (G − S) ≤ α (G) − d , that is the independence number of G decreases by at least d after having removed the vertices from S ; (ii) Transversal (α) where we are given an undirected graph G = (V , E) and two integers k , d ≥ 1 and ask whether there exists a subset of vertices S ⊆ V with | S | ≤ k such that for every maximum independent set I we have | I ∩ S | ≥ d. We show that both problems are polynomial-time solvable in the class of co-comparability graphs by reducing them to the well-known Vertex Cut problem. Our results generalise a result of Chang et al. (2001) and a recent result of Hoang et al. (2023). [ABSTRACT FROM AUTHOR]

The Inner Northern Apennines (Italy) are a region with a dominant N-S to NNW-SSE fault system, but dissected and offset by several E-W to NE-SW trending structures and lineaments. The knowledge about the nature of these transverse structures, their origin, activity and role in current tectonic motions is limited and debated. To better establish the location, subsurface shape, and kinematics of faults related to the Livorno-Empoli lineament, one of the major transverse structures in the Northern Apennines, we analysed the seismicity in western Tuscany. In the Viareggio Basin we identified and relocated two distinct earthquake clusters as well as calculated 12 new focal mechanisms. The results show that the clusters consisted of several swarms from the years 2006, 2015, 2016 and 2021. The events had a depth between 2 and 15 km and were located along a NE-SW oriented, SE dipping fault system dissecting the Viareggio Basin. Focal mechanisms show oblique normal slip. We interpret the fault system to form a connection between the Viareggio Basin and the Lucca Basin to the east as well as continuing offshore. The results show that the transversal faults of the Inner Northern Apennines are seismogenic, with the length, position and onshore to offshore nature of the fault suggesting reactivation of pre-existing structures. [ABSTRACT FROM AUTHOR]

ABSTRACT Power quality improvement in grid‐tied solar photovoltaic (PV) system is one of the emergent current research trends. To address the power quality concern, shunt active power filters (SAPF) are widely deployed and researched in grid‐tied PV systems. This paper presents a simplified adaptive transversal (SAT)‐filter control scheme for the two‐stage PV‐SAPF system. The proposed control has the ability to improve different power quality indices. Also, it features faster operation under steady‐state and under dynamic conditions, better dc‐offset rejection ability due to estimation of the accurate fundamental component of the load current. To justify the effectiveness of the proposed control scheme, a thorough comparison is carried out with different conventional and adaptive control schemes. Simulations and extensive experimental analysis are carried out under severe transient conditions such as balanced‐unbalanced supply, sudden load, and irradiation change scenario. [ABSTRACT FROM AUTHOR]

Informal land and building occupations form a significant part of Southern urbanism, emerging as central features of city--making in places defined by colonial histories and dispossession. They transgress normalised property and legal regimes and thereby open the possibility for alternative relations connected to shared practices of use and being in common. Drawing on long-term engaged research in Bogotá, Colombia and Cape Town, South Africa, this paper traces the origins and dynamic trajectories of two occupations, paying particular attention to the ways occupiers engage state logics transversally to assemble material infrastructures and advance citizenship claims. In comparing these situated practices relationally, we identify three modalities of transversal engagement that shape their presents and futures: 1) direct co-design; 2) aspirational co-design, and 3) anticipatory counter-design. Whilst the potentiality and outcomes of these are uncertain, we argue they are important contributors to contesting racialised regimes of dispossession and reimagining more just and equitable urban futures. [ABSTRACT FROM AUTHOR]

Copyright of Revista Didasc@lia: Didáctica y Educación is the property of Universitaria de Las Tunas, Centro de Estudios de Didactica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A new species of Melanorivulus is described from the upper Taquari River drainage, upper Paraguay River basin, in the Western Brazilian Cerrado. This species is a member of the Melanorivulus pictus group, endemic to the central Brazilian plateau and adjacent areas. Melanorivulus terena, new species, is endemic to the Paraguay River basin and is possibly closely related to other species endemic to the upper Paraná River basin, such as M. linearis, M. interruptus and M. egens, by the absence of distinctive dark marks on the humeral region in males. The new species is distinguished from all other species of the M. pictus group by a distal margin of unpaired fins and pelvic fin that is orangish red, and by the number of scales in the transversal series. The possible close relationship between the new species and other species recorded in the Paraná River basin may indicate an ancestral interconnection of the headwaters of the Rio Taquari (Paraguay River basin) with the headwaters of the upper Rio Verde and Rio Pardo (Paraná River basin). [ABSTRACT FROM AUTHOR]

In this essay, I make a case for transversal writing as a method for artistic research. I use transversal to describe a writing entity that is capable of shifting across media and disciplines, while remaining open for critical reflection. This method is akin to a metamodel, a model not confined to defining itself to the exclusion of other models. Rather, it serves as a heuristic tool for reflecting on how we proceed in an artistic research inquiry. My inquiry is located in the fields of artist's film and video, fictocritical writing, and performance. I begin by shortly positioning artistic research as an intentional and original search for new knowledge, with the inherent value of radical openness. I introduce a metamodel for transversal writing, which encompasses but goes beyond the film essay tradition. The hybrid forms of essayistic film and fictocritical writing are shown to carry a common interest in radical openness, turning them into sites of new knowledge. Through a link with performative writing, the concept of the event completes my metaphor of writing from the milieu. In conclusion, I propose a diagram and a narrative reflection on the making of the artwork seeds of degrowth, whose production is a site of my research. [ABSTRACT FROM AUTHOR]

What does it mean to represent a city? We examine this question through drawing from and seeking to read across two somewhat distinct meanings of representation, stemming from cultural theory and political studies. The reason for approaching representation in this way is an interest in how elected representatives claim the city. Based on interviews with members of the London Assembly, we take a transversal cut across party and geographical lines to analyse the nature and content of their representative claims, identifying two main types: the city as an identity and as a place or a collection of places. The politicians invoke cultural and institutional dimensions of representation and representativeness. The usefulness of employing both senses of representation is that through its representatives, the city—and urban democratic representation—is more than a discrete object or even a multiplicity of viewpoints, but rather a process continually made and remade through practices and claims, even as these slide across scales. These repertoires of representation, of the city as is and as it could be, signal how even from a place of seeming political marginality, the city is open to multiple imagined ideals that are shared and cut across conventional political lines. [ABSTRACT FROM AUTHOR]

In this paper, we study CR maps between hyperquadrics and Winkelmann hypersurfaces. Based on a previous study on the CR Ahlfors derivative of Lamel–Son and a recent result of Huang–Lu–Tang–Xiao on CR maps between hyperquadrics, we prove that a transversal CR map from a hyperquadric into a hyperquadric or a Winkelmann hypersurface extends to a local holomorphic isometric embedding with respect to certain Kähler metrics if and only if the Hermitian part of its CR Ahlfors derivative vanishes on an open set of the source. Our proof is based on relating the geometric rank of a CR map into a hyperquadric and its CR Ahlfors derivative. [ABSTRACT FROM AUTHOR]

The stiffness matrix of a structural Sierpiński triangle under conditions of transversal bending is presented. The derivation is based exclusively on considerations of symmetry, equilibrium, and self-similarity. As a result, the stiffness matrix is shown to depend on a single material parameter. An illustrative numerical example is presented on the basis of an ad hoc computer code for the assembled stiffness of an overall structure consisting of a grid of fractal elements. [ABSTRACT FROM AUTHOR]

Let G be a finite simple graph. A set S ⊆ V (G) is a total hop dominating set of G if for every v ∈ V (G) , there exists u ∈ S such that d G (u , v) = 2. Any total hop dominating set of G of minimum cardinality is a γ th -set of G. A total hop dominating set S of G which intersects every γ th -set of G is a transversal total hop dominating set. The minimum cardinality γ ̂ th (G) of a transversal total hop dominating set in G is the transversal total hop domination number of G. In this paper, we initiate the study of transversal total hop domination in graphs. First, we characterize a graph G of order n for which γ ̂ th (G) is n or n − 1 , and also we determine the specific values of γ ̂ th (G) for some special graphs G. Next, we solve some realization problems involving γ ̂ th (G) with other parameters of G. Finally, we investigate the transversal total hop domination in the complementary prism, corona, and lexicographic product of graphs. [ABSTRACT FROM AUTHOR]