Tootfinder

The influence of substantial intragranular orientation gradients on the micromechanical response of heavily-worked material
Karthik Shankar, Meddelin Setiawan, Katherine S. Shanks, Matthew E. Krug, Matthew P. Kasemer, Darren C. Pagan
https://arxiv.org/abs/2404.03579

The influence of substantial intragranular orientation gradients on the micromechanical response of heavily-worked material
In this study, we examine the role of relatively large amounts of intragranular lattice misorientation - present after many thermomechanical processes - through three-dimensional (3D) micromechanical simulations of forged Al-7085 with a modified T7452 temper. We utilize near-field high-energy X-ray diffraction microscopy (HEDM) to measure 3D spatial orientation fields, and employ a novel reconstruction method that utilizes grain orientation envelopes measured using far-field HEDM to enable reco…

This https://arxiv.org/abs/2307.11835 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Towards Quantifying the Impact of Triaxiality on Optical Signatures of Galaxy Clusters: Weak Lensing and Galaxy Distributions
We present observational evidence of the impact of triaxiality on radial profiles that extend to 40 Mpc from galaxy cluster centres in optical measurements. We perform a stacked profile analysis from a sample of thousands of nearly relaxed galaxy clusters from public data releases of the Dark Energy Survey (DES) and the Dark Energy Camera Legacy Survey (DECaLS). Using the central galaxy elliptical orientation angle as a proxy for galaxy cluster orientation, we measure cluster weak lensing and e…

Uncertainty-aware Active Learning of NeRF-based Object Models for Robot Manipulators using Visual and Re-orientation Actions
Saptarshi Dasgupta, Akshat Gupta, Shreshth Tuli, Rohan Paul
https://arxiv.org/abs/2404.01812

Uncertainty-aware Active Learning of NeRF-based Object Models for Robot Manipulators using Visual and Re-orientation Actions
Manipulating unseen objects is challenging without a 3D representation, as objects generally have occluded surfaces. This requires physical interaction with objects to build their internal representations. This paper presents an approach that enables a robot to rapidly learn the complete 3D model of a given object for manipulation in unfamiliar orientations. We use an ensemble of partially constructed NeRF models to quantify model uncertainty to determine the next action (a visual or re-orienta…

This https://arxiv.org/abs/2403.19612 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCV_…

ILPO-NET: Network for the invariant recognition of arbitrary volumetric patterns in 3D
Effective recognition of spatial patterns and learning their hierarchy is crucial in modern spatial data analysis. Volumetric data applications seek techniques ensuring invariance not only to shifts but also to pattern rotations. While traditional methods can readily achieve translational invariance, rotational invariance possesses multiple challenges and remains an active area of research. Here, we present ILPO-Net (Invariant to Local Patterns Orientation Network), a novel approach that handle…

This https://arxiv.org/abs/2112.00931 has been replaced.
link: https://scholar.google.com/scholar?q=a

Antenna Selection in Polarization Reconfigurable MIMO (PR-MIMO) Communication Systems
Adaptation of a wireless system to the polarization state of the propagation channel can improve reliability and throughput. This paper in particular considers polarization reconfigurable multiple input multiple output (PR-MIMO) systems, where both transmitter and receiver can change the (linear) polarization orientation at each element of their antenna arrays. We first introduce joint polarization pre-post coding to maximize bounds on the capacity and the maximum eigenvalue of the channel matr…

Disclaimer, THIS IS NOT A JOKE.
This is the PM of Scottland, Pakistani Humza Yousa.
“JK Rowling could be arrested in Scotland for making a series of posts misgendering transgender women, under a newly-enacted hate crime law, a politician in the UK has warned.”
This is insane !!!
https://

RadioGenoa (@RadioGenoa) on X
In Scotland hate speech law supported by PM Humza Yousaf has come into force which will carry prison sentences of up to 7 years for statements deemed to incite hatred on the grounds of religion, sexual orientation and gender identity. The same PM Humza Yousa who denounces that…

“Lincoln’s words… echo with me as a journalist who’s going to keep reporting on political and policy debates that affect people — no matter what their religious orientation happens to be.”
Heidi Przbyla, quoting Lincoln’s 2nd Inaugural and standing up strong to attacks.

Positive topological entropy for the Standard Map
Fernando Oliveira
https://arxiv.org/abs/2404.02209 https://arxiv.org/pdf/2404.02209…

Positive topological entropy for the Standard Map
We show that for the standard map family, for all values of the parameter, except one, the mapping has positive topological entropy. The main tool is the following result. Let $S$ be a compact connected orientable surface and $f:S \rightarrow S$ an area preserving orientation preserving $C \e 1$ diffeomorphism of $S$. Assume that $U$ is an invariant domain of $S$ such that $fr_S{U}$ has a finite number of connected components. Let $b$ be a regular ideal boundary point of $U$ which is fixed …

To all the https://godbolt.org lovers (especially WebDevs) who have tried to use it on a phone: am I holding it wrong or could some improvements be made?
On an iPhone 14 Pro (average-ish sized screen) on iOS 17.4 I see this:
A) Vertically it shows no indication of the assembly tab
B) Horizontal …

Compiler Explorer
Compiler Explorer is an interactive online compiler which shows the assembly output of compiled C++, Rust, Go (and many more) code.

This https://arxiv.org/abs/2307.11835 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Towards Quantifying the Impact of Triaxiality on Optical Signatures of Galaxy Clusters: Weak Lensing and Galaxy Distributions
We present observational evidence of the impact of triaxiality on radial profiles that extend to 40 Mpc from galaxy cluster centres in optical measurements. We perform a stacked profile analysis from a sample of thousands of nearly relaxed galaxy clusters from public data releases of the Dark Energy Survey (DES) and the Dark Energy Camera Legacy Survey (DECaLS). Using the central galaxy elliptical orientation angle as a proxy for galaxy cluster orientation, we measure cluster weak lensing and e…

This https://arxiv.org/abs/2312.11843 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

Enhancing Social Decision-Making of Autonomous Vehicles: A Mixed-Strategy Game Approach With Interaction Orientation Identification
The integration of Autonomous Vehicles (AVs) into existing human-driven traffic systems poses considerable challenges, especially within environments where human and machine interactions are frequent and complex, such as at unsignalized intersections. To deal with these challenges, we introduce a novel framework predicated on dynamic and socially-aware decision-making game theory to augment the social decision-making prowess of AVs in mixed driving environments. This comprehensive framework is …

This https://arxiv.org/abs/2403.19612 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCV_…

ILPO-NET: Network for the invariant recognition of arbitrary volumetric patterns in 3D
Effective recognition of spatial patterns and learning their hierarchy is crucial in modern spatial data analysis. Volumetric data applications seek techniques ensuring invariance not only to shifts but also to pattern rotations. While traditional methods can readily achieve translational invariance, rotational invariance possesses multiple challenges and remains an active area of research. Here, we present ILPO-Net (Invariant to Local Patterns Orientation Network), a novel approach that handle…

“Victory” threat: how the Kremlin is preparing for revenge in Moldova Written by Anton Khimiak, UCMC/HWAG analyst On April 21, 2024, a meeting of pro-Russian opposition figures of Moldova was held in Source : https://uacrisis.org/en/pogrozy-peremog…

This https://arxiv.org/abs/2111.06983 has been replaced.
link: https://scholar.google.com/scholar?q=a

Positroids are 3-colorable
We show that every positroid of rank $r \geq 3$ has a good coline. Using the definition of the chromatic number of oriented matroid introduced by J.\ Nešetřil, R.\ Nickel, and W.~Hochstättler, this shows that every orientation of a positroid is 3-colorable.

Flock2: A model for orientation-based social flocking
Rama Carl Hoetzlein
https://arxiv.org/abs/2404.17804 https://arxiv.org/pdf/2404…

Flock2: A model for orientation-based social flocking
The aerial flocking of birds, or murmurations, have fascinated observers while presenting many challenges to behavioral study and simulation. We examine how the periphery of murmurations remain well bounded and cohesive. We also investigate agitation waves, which occur when a flock is disturbed, developing a plausible model for how they might emerge spontaneously. To understand these behaviors a new model is presented for orientation-based social flocking. Previous methods model inter-bird dyna…

This https://arxiv.org/abs/2308.01381 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

Estimation of motion blur kernel parameters using regression convolutional neural networks
Many deblurring and blur kernel estimation methods use a maximum a posteriori (MAP) approach or deep learning-based classification techniques to sharpen an image and/or predict the blur kernel. We propose a regression approach using convolutional neural networks (CNNs) to predict parameters of linear motion blur kernels, the length and orientation of the blur. We analyze the relationship between length and angle of linear motion blur that can be represented as digital filter kernels. A large da…

This https://arxiv.org/abs/2312.11843 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

Enhancing Social Decision-Making of Autonomous Vehicles: A Mixed-Strategy Game Approach With Interaction Orientation Identification
The integration of Autonomous Vehicles (AVs) into existing human-driven traffic systems poses considerable challenges, especially within environments where human and machine interactions are frequent and complex, such as at unsignalized intersections. To deal with these challenges, we introduce a novel framework predicated on dynamic and socially-aware decision-making game theory to augment the social decision-making prowess of AVs in mixed driving environments. This comprehensive framework is …

Real spin bordism and orientations of topological $\mathrm{K}$-theory
Zachary Halladay, Yigal Kamel
https://arxiv.org/abs/2405.00963 https://

Real spin bordism and orientations of topological $\mathrm{K}$-theory
We construct a commutative orthogonal $C_2$-ring spectrum, $\mathrm{MSpin}^c_{\mathbb{R}}$, along with a $C_2$-$E_{\infty}$-orientation $\mathrm{MSpin}^c_{\mathbb{R}} \to \mathrm{KU}_{\mathbb{R}}$ of Atiyah's Real K-theory. Further, we define $E_{\infty}$-maps $\mathrm{MSpin} \to (\mathrm{MSpin}^c_{\mathbb{R}})^{C_2}$ and $\mathrm{MU}_{\mathbb{R}} \to \mathrm{MSpin}^c_{\mathbb{R}}$, which are used to recover the three well-known orientations of topological $\mathrm{K}$-theory, $\mathrm{MSpin}^c…

Disclaimer, THIS IS NOT A JOKE.
This is the PM of Scottland, Pakistani Humza Yousa.
“JK Rowling could be arrested in Scotland for making a series of posts misgendering transgender women, under a newly-enacted hate crime law, a politician in the UK has warned.”
This is insane !!!
https://

RadioGenoa (@RadioGenoa) on X
In Scotland hate speech law supported by PM Humza Yousaf has come into force which will carry prison sentences of up to 7 years for statements deemed to incite hatred on the grounds of religion, sexual orientation and gender identity. The same PM Humza Yousa who denounces that…

This https://arxiv.org/abs/2403.07348 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Linear and smooth oriented equivalence of orthogonal representations of finite groups
Let $n\le 5$ be an integer, and let $Γ$ be a finite group. We prove that if $ρ, ρ': Γ\to O(n)$ are two representations that are conjugate by an orientation-preserving diffeomorphism, then they are conjugate by an element of $SO(n)$. In the process, we prove that if $G \subset O(4)$ is a finite group, then exactly one of the following is true: the elements of $G$ have a common invariant $1$-dimensional subspace in $\mathbb{R}^4$; some element of $G$ has no invariant $1$-dimensional subspace;…

The Downtown Nasty Women Social Group is a grassroots community of activists working together to make positive change in people’s every day lives.
We believe that the strongest America is one that values the freedom, equality, and safety of each individual regardless of gender, sexual orientation, race, religion, ethnicity, or immigration status.
https://

The International Lunar Observatory Association has received images from its precursor ILO-X instruments aboard the #Odysseus lunar lander: https://iloa.org/ilo-x-precursor/ - the images received from the wide field-of-view imager include portions of the lunar landscape, regolith / dust, the Sun, and the Odysseus lunar lander which continues to help confirm the lander’s orientation on the Moon, and contains other valuable information. Images to be released on Thursday 29 February 2024 (Leap Day).

Engineering Edge Orientation Algorithms
H. Reinst\"adtler, C. Schulz, B. U\c{c}ar
https://arxiv.org/abs/2404.13997 https://arxiv…

Engineering Edge Orientation Algorithms
Given an undirected graph G, the edge orientation problem asks for assigning a direction to each edge to convert G into a directed graph. The aim is to minimize the maximum out degree of a vertex in the resulting directed graph. This problem, which is solvable in polynomial time, arises in many applications. An ongoing challenge in edge orientation algorithms is their scalability, particularly in handling large-scale networks with millions or billions of edges efficiently. We propose a novel al…

This https://arxiv.org/abs/2403.19581 has been replaced.
initial toot: https://mastoxiv.page/@a…

Tuning the intrinsic anomalous Hall effect from large to zero in the two ferromagnetic states of the layered SmMn2Ge2
The intrinsic anomalous Hall conductivity in a ferromagnetic metal is completely determined by its band structure. Since the spin orientation direction is an important band structure tuning parameter, it is highly desirable to study the anomalous Hall effect in a system with multiple spin reorientation transitions. We study a layered tetragonal room temperature ferromagnet SmMn2Ge2, which gives us the opportunity to measure magneto-transport properties where the long c-axis and the short a-axis…

This https://arxiv.org/abs/1601.07346 has been replaced.
link: https://scholar.google.com/scholar?q=a

Orientations of Morse flow trees in Legendrian contact homology
Let $Λ$ be a closed, connected, spin Legendrian submanifold of the 1-jet space of a smooth $n$-dimensional manifold. We give a coherent orientation scheme for the moduli space of rigid Morse flow trees of $Λ$, implying that the Legendrian contact homology of $Λ$ with integer coefficients can be computed using Morse flow trees. If $n>1$ then this orientation scheme can be computed with an algorithm which uses intersections of oriented flow manifolds in $M$ together with combinatorial data com…

Nonlinear stability for active suspensions
Helge Dietert (IMJ-PRG), Michele Coti Zelati (IMJ-PRG), David G\'erard-Varet (IMJ-PRG)
https://arxiv.org/abs/2404.01906

Nonlinear stability for active suspensions
This paper is devoted to the nonlinear analysis of a kinetic model introduced by Saintillan and Shelley to describe suspensions of active rodlike particles in viscous flows. We investigate the stability of the constant state $Ψ(t,x,p) = \frac{1}{4π} $ corresponding to a distribution of particles that is homogeneous in space (variable $x \in \mathbb{T}^3$) and uniform in orientation (variable $p \in \mathbb{S}^2$). We prove its nonlinear stability under the optimal condition of lineari…

A lot of excellent research on this was done by a guy named Finkelhor.
He is cited and quoted in this piece.
https://vice.com/en/article/mgmzwn/most-child-sex-abusers-are-not-pedophiles-expert-says
.

👍 Biden Administration Restores Health Protections for Gay and Transgender People - The New York Times
https://www.nytimes.com/2024/04/26/us/politics/biden-gay-transgender-health-care.html

Biden Administration Restores Health Protections for Gay and Transgender People
The Health and Human Services Department finalized a rule prohibiting discrimination based on sexual orientation and gender identity, reversing a Trump-era policy.

Combined spin orientation and phase function of asteroids
B. Carry, J. Peloton, R. Le Montagner, M. Mahlke, J. Berthier
https://arxiv.org/abs/2403.20179 ht…

Combined spin orientation and phase function of asteroids
Large surveys provide numerous non-targeted observations of small bodies (SSOs). The upcoming LSST of the Rubin observatory will be the largest source of SSO photometry in the next decade. With non-coordinated epochs of observation, colors, and therefore taxonomy and composition, can only be computed by comparing absolute magnitudes obtained in each filter by solving the phase function (evolution of brightness of the small body against the solar phase angle). Current models in use in the commun…

Oh! I can render at 1920 square, and then crop to 1080 for each orientation.
That's a 1/4 or so longer render time for each image vs rendering straight into 16x9 but way way faster than doing 16x9 and then 9x16.
🤔 Yes. Good plan I think.

Has anyone tried doing Czochralski-esque crystallization of rock candy from solution?
The vision I have is a single seed crystal of your orientation of choice, attached to a string or stick, being slowly rotated above a dish of saturated sucrose solution and lifted out as the crystal grows. Maybe with some seals or apertures to control humidity and this rate of evaporation to keep the solution from becoming too supersaturated (and spawning more crystals on dust specks etc).
At th…

Physics-Informed Acoustic Liner Optimization: Balancing Drag and Noise
Haris Shahzad, Stefan Hickel, Davide Modesti
https://arxiv.org/abs/2405.00563 https:…

Physics-Informed Acoustic Liner Optimization: Balancing Drag and Noise
We present pore-resolved Direct Numerical Simulations (DNS) of turbulent flows grazing over acoustic liners with aerodynamically and/or acoustically optimized orifice configurations. Our DNS explore a large parameter space, studying various families of orifice geometries, including the influence of orifice shape, orientation, and the number of orifices. All flow cases show an increase in drag compared to the smooth wall. However, the added drag can be reduced by as much as $\sim$55\% as compare…

Cyclic branched covers of Seifert links and properties related to the $ADE$ link conjecture
Steven Boyer, Cameron McA. Gordon, Ying Hu
https://arxiv.org/abs/2402.15914

Cyclic branched covers of Seifert links and properties related to the $ADE$ link conjecture
In this article we show that all cyclic branched covers of a Seifert link have left-orderable fundamental groups, and therefore admit co-oriented taut foliations and are not $L$-spaces, if and only if it is not an $ADE$ link up to orientation. This leads to a proof of the $ADE$ link conjecture for Seifert links. When $L$ is an $ADE$ link up to orientation, we determine which of its canonical $n$-fold cyclic branched covers $Σ_n(L)$ have non-left-orderable fundamental groups. In addition, we gi…

This https://arxiv.org/abs/2108.12696 has been replaced.
link: https://scholar.google.com/scholar?q=a

Linked orbits of homeomorphisms of the plane and Gambaudo-Kolev Theorem
Let $h : \mathbb{R}^2 \to \mathbb{R}^2$ be an orientation preserving homeomorphism of the plane. For any bounded orbit $\mathcal{O}(x)=\{h^n(x):n\in\mathbb{Z}\}$ there exists a fixed point $x'\in\mathbb{R}^2$ of $h$ linked to $\mathcal{O}(x)$ in the sense of Gambaudo: one cannot find a Jordan curve $C\subseteq\mathbb{R}^2$ around $\mathcal{O}(x)$, separating it from $x'$, that is isotopic to $h(C)$ in $\mathbb{R}^2\setminus\left(\mathcal{O}(x)\cup\{x'\}\right)$.

Ways I knew I was bisexual:
When I was growing up I would sometimes be like
Movies: “Ok, that woman is attractive, but…wait a second show me more of her husband!!! 🤤”
Dancing: “Ok, that lady looks hot in that dress, but…ohhh is that what I think it is in his pants? 🥵”
I tried to excuse these as me being “sinful”, but until I realised I was attracted to men and woman, with the emphasis on the former I didn’t realise my own orientation.

A microstructure-sensitive electro-chemo-mechanical phase-field model of pitting and stress corrosion cracking
M. Makuch, S. Kovacevic, M. R. Wenman, E. Mart\'inez-Pa\~neda
https://arxiv.org/abs/2403.20301

A microstructure-sensitive electro-chemo-mechanical phase-field model of pitting and stress corrosion cracking
An electro-chemo-mechanical phase-field formulation is developed to simulate pitting and stress corrosion in polycrystalline materials. The formulation incorporates dependencies of mechanical properties and corrosion potential on crystallographic orientation. The model considers the formation and charging dynamics of an electric double layer through a new general boundary condition for the solution potential. The potential of the model is demonstrated by simulating corrosion in polycrystalline …

Real spin bordism and orientations of topological $\mathrm{K}$-theory
Zachary Halladay, Yigal Kamel
https://arxiv.org/abs/2405.00963 https://

Real spin bordism and orientations of topological $\mathrm{K}$-theory
We construct a commutative orthogonal $C_2$-ring spectrum, $\mathrm{MSpin}^c_{\mathbb{R}}$, along with a $C_2$-$E_{\infty}$-orientation $\mathrm{MSpin}^c_{\mathbb{R}} \to \mathrm{KU}_{\mathbb{R}}$ of Atiyah's Real K-theory. Further, we define $E_{\infty}$-maps $\mathrm{MSpin} \to (\mathrm{MSpin}^c_{\mathbb{R}})^{C_2}$ and $\mathrm{MU}_{\mathbb{R}} \to \mathrm{MSpin}^c_{\mathbb{R}}$, which are used to recover the three well-known orientations of topological $\mathrm{K}$-theory, $\mathrm{MSpin}^c…

Microscopic study of deformation and orientation effects in heavy-ion reactions above Coulomb barrier using the Boltzmann-Uehling-Uhlenbeck model
Yujie Feng, Huizi Liu, Yingge Huang, Fuchang Gu, Erxi Xiao, Xin Lei, Hui Wang, Jiali Huang, Long Zhu, Jun Su
https://arxiv.org/abs/2402.16019 …

Microscopic study of deformation and orientation effects in heavy-ion reactions above Coulomb barrier using the Boltzmann-Uehling-Uhlenbeck model
Background: The understanding of the impact of initial deformation and collision orientation on quasi-fission and fusion-fission reactions remains incomplete. Purpose: This article aims to explore how the orientation of deformed nuclei influences quasi-fission and fusion-fission around 1.2 VB, employing a micro dynamical method in systems with diverse shapes, namely 24Mg + 178Hf, 34S + 168Er, and 48Ti + 154Sm. Method: Utilizing the Boltzmann-Uehling-Uhlenbeck model, this study investigates quas…

I get that there’s a colloquial convention for this in the UI design language (left off, right on), but it’s uaully accompanied by a label or at least a colour change.
This is especially complicated for an international audience (e.g. US power switches up for on; UK down for on).
I have a hard time believing this is not an intentional anti-pattern to trick users into doing the thing the website wants them to do (which is often the opposite of what the user wants to do).
Ple…

This https://arxiv.org/abs/2310.06924 has been replaced.
initial toot: https://mastoxiv.page/@a…

In-plane magnetic field driven conductance modulations in topological insulator kinks
We present low-temperature magnetoconductance measurements on Bi$_{1.5}$Sb$_{0.5}$Te$_{1.8}$Se$_{1.2}$ kinks with ribbon-shaped legs. The conductance displays a clear dependence on the in-plane magnetic field orientation. The conductance modulation is consistent with orbital effect-driven trapping of the topological surface states on different side facets of the legs of the kink, which affects their transmission across the kink. This magnetic field-driven trapping and conductance pattern can be…

Leveraging Opposite Gender Interaction Ratio as a Path towards Fairness in Online Dating Recommendations Based on User Sexual Orientation
Yuying Zhao, Yu Wang, Yi Zhang, Pamela Wisniewski, Charu Aggarwal, Tyler Derr
https://arxiv.org/abs/2402.12541

Leveraging Opposite Gender Interaction Ratio as a Path towards Fairness in Online Dating Recommendations Based on User Sexual Orientation
Online dating platforms have gained widespread popularity as a means for individuals to seek potential romantic relationships. While recommender systems have been designed to improve the user experience in dating platforms by providing personalized recommendations, increasing concerns about fairness have encouraged the development of fairness-aware recommender systems from various perspectives (e.g., gender and race). However, sexual orientation, which plays a significant role in finding a sati…

Effect of the Source toSubstrate Distance on Structural, Optoelectronic, and Thermoelectric Properties of Zinc Sulfide Thin Films
Asad Ur Rehman Khan, Muhammad Ramzan, Muhammad Faisal Iqbal, Muhammad Hafeez, Mohammed M. Fadhali, Hamoud H. Somaily, Muhammad Javid, Muhammad Waqas Mukhtar, Muhammad Farooq Saleem
https://arxiv.org/a…

Effect of the Source toSubstrate Distance on Structural, Optoelectronic, and Thermoelectric Properties of Zinc Sulfide Thin Films
Zinc sulfide ZnS thin films with variable structural, optical, electrical, and thermoelectric properties were obtained by changing the source to substrate SSD distance in the physical vaporthermal coating PVTC system. The films crystallized into a zinc blede cubic structure with 111 preferred orientation.

This https://arxiv.org/abs/2206.01721 has been replaced.
link: https://scholar.google.com/scholar?q=a

Orientation of convex sets
We introduce a novel definition of orientation on the triples of a family of pairwise intersecting planar convex sets and study its properties. In particular, we compare it to other systems of orientations on triples that satisfy a so-called interiority condition: $\circlearrowleft(ABD)=~\circlearrowleft(BCD)=~\circlearrowleft(CAD)=1$ imply $\circlearrowleft(ABC)=1$ for any $A,B,C,D$. We call such an orientation a P3O (partial 3-order), a natural generalization of a poset, that has several inte…

Complexity of Planar Graph Orientation Consistency, Promise-Inference, and Uniqueness, with Applications to Minesweeper Variants
MIT Hardness Group, Della Hendrickson, Andy Tockman
https://arxiv.org/abs/2404.14519

Complexity of Planar Graph Orientation Consistency, Promise-Inference, and Uniqueness, with Applications to Minesweeper Variants
We study three problems related to the computational complexity of the popular game Minesweeper. The first is consistency: given a set of clues, is there any arrangement of mines that satisfies it? This problem has been known to be NP-complete since 2000, but our framework proves it as a side effect. The second is inference: given a set of clues, is there any cell that the player can prove is safe? The coNP-completeness of this problem has been in the literature since 2011, but we discovered a …

How Do You Rhyme in Sign Language?
In the phonology of sign language, the parts of a signed word are:
handshape, location, palm orientation, movement, and non-manual signal.
They are called parameters. Each parameter has a number of primes.
More specifically In American sign language, the same parameter in two or more words (signs) are repeated.
The parts may be the same handshape, movement, and/or location, or combined, but the handshape

The effects of long-term exposure to microgravity and body orientation relative to gravity on perceived traveled distance: #Astronauts have surprising ability to know how far they ‘fly’ in space: https://www.yorku.ca/news/2024/03/25/astronauts-have-surprising-ability-to-know-how-far-they-fly-in-space/ - York-led findings show astronauts can safely assess distances in weightless environment.

This https://arxiv.org/abs/2206.09788 has been replaced.
link: https://scholar.google.com/scholar?q=a

Galilean and Carrollian Hodge star operators
The standard Hodge star operator is naturally associated with metric tensor (and orientation). It is routinely used to concisely write down physics equations on, say, Lorentzian spacetimes. On Galilean (Carrollian) spacetimes, there is no canonical (nonsingular) metric tensor available. So, the usual construction of the Hodge star does not work. Here we propose analogs of the Hodge star operator on Galilean (Carrollian) spacetimes. They may be used to write down important physics equations, e.g…

This https://arxiv.org/abs/2311.07823 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

Plug-and-Play Latent Feature Editing for Orientation-Adaptive Quantitative Susceptibility Mapping Neural Networks
Quantitative susceptibility mapping (QSM) is a post-processing technique for deriving tissue magnetic susceptibility distribution from MRI phase measurements. Deep learning (DL) algorithms hold great potential for solving the ill-posed QSM reconstruction problem. However, a significant challenge facing current DL-QSM approaches is their limited adaptability to magnetic dipole field orientation variations during training and testing. In this work, we propose a novel Orientation-Adaptive Latent F…

Enhancing Robot Navigation Efficiency Using Cellular Automata with Active Cells
Saleem Alzoubi, Mahdi H. Miraz
https://arxiv.org/abs/2404.01885 https://

Enhancing Robot Navigation Efficiency Using Cellular Automata with Active Cells
Enhancing robot navigation efficiency is a crucial objective in modern robotics. Robots relying on external navigation systems are often susceptible to electromagnetic interference (EMI) and encounter environmental disturbances, resulting in orientation errors within their surroundings. Therefore, the study employed an internal navigation system to enhance robot navigation efficacy under interference conditions, based on the analysis of the internal parameters and the external signals. This art…

Effect of the Source toSubstrate Distance on Structural, Optoelectronic, and Thermoelectric Properties of Zinc Sulfide Thin Films
Asad Ur Rehman Khan, Muhammad Ramzan, Muhammad Faisal Iqbal, Muhammad Hafeez, Mohammed M. Fadhali, Hamoud H. Somaily, Muhammad Javid, Muhammad Waqas Mukhtar, Muhammad Farooq Saleem
https://arxiv.org/a…

Effect of the Source toSubstrate Distance on Structural, Optoelectronic, and Thermoelectric Properties of Zinc Sulfide Thin Films
Zinc sulfide ZnS thin films with variable structural, optical, electrical, and thermoelectric properties were obtained by changing the source to substrate SSD distance in the physical vaporthermal coating PVTC system. The films crystallized into a zinc blede cubic structure with 111 preferred orientation.

This https://arxiv.org/abs/2403.14916 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCR_…

Snail: Secure Single Iteration Localization
Localization is a computer vision task by which the position and orientation of a camera is determined from an image and environmental map. We propose a method for performing localization in a privacy preserving manner supporting two scenarios: first, when the image and map are held by a client who wishes to offload localization to untrusted third parties, and second, when the image and map are held separately by untrusting parties. Privacy preserving localization is necessary when the image an…

MorphText: Deep Morphology Regularized Arbitrary-shape Scene Text Detection
Chengpei Xu, Wenjing Jia, Ruomei Wang, Xiaonan Luo, Xiangjian He
https://arxiv.org/abs/2404.17151 https://arxiv.org/pdf/2404.17151
arXiv:2404.17151v1 Announce Type: new
Abstract: Bottom-up text detection methods play an important role in arbitrary-shape scene text detection but there are two restrictions preventing them from achieving their great potential, i.e., 1) the accumulation of false text segment detections, which affects subsequent processing, and 2) the difficulty of building reliable connections between text segments. Targeting these two problems, we propose a novel approach, named ``MorphText", to capture the regularity of texts by embedding deep morphology for arbitrary-shape text detection. Towards this end, two deep morphological modules are designed to regularize text segments and determine the linkage between them. First, a Deep Morphological Opening (DMOP) module is constructed to remove false text segment detections generated in the feature extraction process. Then, a Deep Morphological Closing (DMCL) module is proposed to allow text instances of various shapes to stretch their morphology along their most significant orientation while deriving their connections. Extensive experiments conducted on four challenging benchmark datasets (CTW1500, Total-Text, MSRA-TD500 and ICDAR2017) demonstrate that our proposed MorphText outperforms both top-down and bottom-up state-of-the-art arbitrary-shape scene text detection approaches.

20 ans - Frédéric Couchet
https://www.couchet.org/blog/index.php?post/2024/01/28/20-ans

Semi-Substructural Logics with Additives
Niccol\`o Veltri (Tallinn University of Technology), Cheng-Syuan Wan (Tallinn University of Technology)
https://arxiv.org/abs/2404.14922 <…

Semi-Substructural Logics with Additives
This work concerns the proof theory of (left) skew monoidal categories and their variants (e.g. closed monoidal, symmetric monoidal), continuing the line of work initiated in recent years by Uustalu et al. Skew monoidal categories are a weak version of Mac Lane's monoidal categories, where the structural laws are not required to be invertible, they are merely natural transformations with a specific orientation. Sequent calculi which can be modelled in such categories can be identified as deduc…

Bimodal orientation distribution and head-tail asymmetry of a sample of filamentary molecular clouds
Wen Ge, Fujun Du, Lixia Yuan
https://arxiv.org/abs/2403.16518

Bimodal orientation distribution and head-tail asymmetry of a sample of filamentary molecular clouds
The morphology of molecular clouds is crucial for understanding their origin and evolution. In this work, we investigate the morphology of the filamentary molecular clouds (filaments for short) using a portion of the $^{12}\text{CO} (J=1-0)$ data from the Milky Way Imaging Scroll Painting (MWISP) project. The data cover an area spanning $104.75^\circ

Now this is weird.
The correlation seems to exist, I guess, but it doesn't make any sense to me. Why would differences in which side is more dexterous have any sort of impact on sexuality?!
https://noc.social/@todayilearned/112119550021300265

A Contextual Inquiry of People with Vision Impairments in Cooking
Franklin Mingzhe Li, Michael Xieyang Liu, Shaun K. Kane, Patrick Carrington
https://arxiv.org/abs/2402.15108

A Contextual Inquiry of People with Vision Impairments in Cooking
Individuals with vision impairments employ a variety of strategies for object identification, such as pans or soy sauce, in the culinary process. In addition, they often rely on contextual details about objects, such as location, orientation, and current status, to autonomously execute cooking activities. To understand how people with vision impairments collect and use the contextual information of objects while cooking, we conducted a contextual inquiry study with 12 participants in their own …

How Do You Rhyme in Sign Language?
In the phonology of sign language, the parts of a signed word are:
handshape, location, palm orientation, movement, and non-manual signal.
They are called parameters. Each parameter has a number of primes.
More specifically In American sign language, the same parameter in two or more words (signs) are repeated.
The parts may be the same handshape, movement, and/or location, or combined, but the handshape

Local antimagic orientation of graphs with positive real numbers as the labels
Eranda Dhananjaya, Wei-Tian Li
https://arxiv.org/abs/2402.10472 https://

Local antimagic orientation of graphs with positive real numbers as the labels
An undirected graph $G$ is said to admits a local antimagic orientation if there exists an orientation $D$ and a bijection between $E(G)$ and $\{1,2,\ldots,|E(G)|\}$ such that any two adjacent vertices have distinct vertex sums, where the vertex sum of a vertex is the sum of the labels of the in-edges minus that of the out-edges incident to the vertex. Chang, Jing, and Wang \cite{CJW20} conjectured that every connected graph admits a local antimagic orientation. In this paper, we give…

Vector meson production using the Balitsky-Kovchegov equation including the dipole orientation
Jan Cepila, Jesus Guillermo Contreras, Matej Vaculciak
https://arxiv.org/abs/2404.05800

Vector meson production using the Balitsky-Kovchegov equation including the dipole orientation
In this proceedings a solution of the target-rapidity Balitsky-Kovchegov (BK) equation is presented considering the complete impact-parameter dependence, including the orientation of the dipole with respect to the impact-parameter vector. The target-rapidity formulation of the BK equation introduces non-locality in rapidity. Three different prescriptions are considered to take into account the rapidities preceding the initial condition. The solutions are used to compute the structure functions …

Florida teachers can discuss sexual orientation and gender ID under 'Don't Say Gay' bill settlement (Mike Schneider/Associated Press)
https://apnews.com/article/florida-dont-say-gay-bill-settlement-987904b3e19122d719cf468034746b6e
http://www.memeorandum.com/240311/p72#a240311p72

Stand-Up Indulgent Gathering on Rings
Quentin Bramas, Sayaka Kamei, Anissa Lamani, S\'ebastien Tixeuil
https://arxiv.org/abs/2402.14233 https://…

Stand-Up Indulgent Gathering on Rings
We consider a collection of $k \geq 2$ robots that evolve in a ring-shaped network without common orientation, and address a variant of the crash-tolerant gathering problem called the \emph{Stand-Up Indulgent Gathering} (SUIG): given a collection of robots, if no robot crashes, robots have to meet at the same arbitrary location, not known beforehand, in finite time; if one robot or more robots crash on the same location, the remaining correct robots gather at the location of the crashed robots.…

This https://arxiv.org/abs/2403.14112 has been replaced.
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Benchmarking Chinese Commonsense Reasoning of LLMs: From Chinese-Specifics to Reasoning-Memorization Correlations
We introduce CHARM, the first benchmark for comprehensively and in-depth evaluating the commonsense reasoning ability of large language models (LLMs) in Chinese, which covers both globally known and Chinese-specific commonsense. We evaluated 7 English and 12 Chinese-oriented LLMs on CHARM, employing 5 representative prompt strategies for improving LLMs' reasoning ability, such as Chain-of-Thought. Our findings indicate that the LLM's language orientation and the task's domain influence the effe…

This https://arxiv.org/abs/2311.00909 has been replaced.
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Planar Aerogel and Superfluid $^3$He, Structure and Transitions
Anisotropic aerogel possesses structure which exhibits a strong influence over the composition and orientation of the order parameter of imbibed superfluid $^3$He. Computational studies have identified stretched aerogel with plane-like structures and compressed aerogel with nematic-like structures. Studies of the B phase of superfluid $^3$He in stretched aerogel display an enhanced nuclear magnetic susceptibility likely caused by Andreev bound states near plane-like impurity sites. We report fu…

This https://arxiv.org/abs/2307.13891 has been replaced.
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Jet-hadron correlations with respect to the event plane in $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV Au+Au collisions in STAR
Angular distributions of charged particles relative to jet axes are studied in $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV Au+Au collisions as a function of the jet orientation with respect to the event plane. This differential study tests the expected path-length dependence of energy loss experienced by a hard-scattered parton as it traverses the hot and dense medium formed in heavy-ion collisions. A second-order event plane is used in the analysis as an experimental estimate of the reaction plane form…

This https://arxiv.org/abs/2211.07559 has been replaced.
link: https://scholar.google.com/scholar?q=a

Lagrangian intersections and cuplength in generalised cohomology theories
We find lower bounds on the number of intersection points between two relatively exact Hamiltonian isotopic Lagrangians. The bounds are given in terms of the cuplength of the Lagrangian in various multiplicative generalised cohomology theories. The intersection of the Lagrangians need not be transverse, however, we require certain orientation assumptions. This gives stronger bounds than previous estimates on the number of self-intersection points of a suitable closed, relatively exact Lagrangia…

This https://arxiv.org/abs/2310.11274 has been replaced.
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Stripe and checkerboard patterns in a stack of driven quasi-one-dimensional dipolar condensates
The emergence of transient checkerboard and stripe patterns in a stack of driven quasi-one-dimensional homogeneous dipolar condensates is studied. The parametric driving of the $s$-wave scattering length leads to the excitation of the lowest collective Bogoliubov mode. The character of the lowest mode depends critically on the orientation of the dipoles, corresponding to out-of-phase and in-phase density modulations in neighboring condensates, resulting in checkerboard and stripe patterns. Furt…

Self-similar solutions in cylindrical magneto-hydrodynamic blast waves with energy injection at the centre
Antoine Gintrand, Quentin Moreno-Gelos
https://arxiv.org/abs/2403.16675 …

Self-similar solutions in cylindrical magneto-hydrodynamic blast waves with energy injection at the centre
The evolution of shocks induced by massive stars does not depend only on the ambient magnetic field strength, but also on its orientation. In the present work, the dynamics of a magnetized blast wave is investigated under the influence of both azimuthal and axial ambient magnetic fields. The blast wave is driven by a central source and forms a shell that results from the accumulation of interstellar matter behind the shock front. A similarity form of the ambient magnetic field and a cylindrical…

Soundscape enrichment increases larval settlement rates for the brooding coral Porites astreoides https://royalsocietypublishing.org/doi/10.1098/rsos.231514 "sounds can be used as orientation and settlement cues for larvae of reef animals".

"Odysseus is alive and well," says IM now in the first somewhat detailled #Odysseus post-landing update https://twitter.com/Int_Machines/status/1761032731729739804: "Flight controllers are communicating and commanding the vehicle to download science data. The lander has good telemetry and solar charging. We continue to learn more about the vehicle’s specific information (Lat/Lon), overall health, and attitude (orientation)." More will be said at a press conference later today, details TBD.

This https://arxiv.org/abs/2312.16072 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Strong Nielsen equivalence on the punctured disc
Let $f$ be an orientation-preserving homeomorphism of the 2-disc $\mathbb{D}^2$ that fixes the boundary pointwise and leaves invariant a finite subset in the interior of $\mathbb{D}^2$. We study the strong Nielsen equivalence of periodic points of such homeomorphisms $f$ and we give a necessary and sufficient condition for two periodic points to be strong Nielsen equivalent in the context of braid theory. In addition, we present an application of our result to the trace formula given by Jiang--…

On the Effect of Liquid Crystal Orientation in the Lipid Layer on Tear Film Thinning and Breakup
M. J. Taranchuk, R. J. Braun
https://arxiv.org/abs/2404.13225

On the Effect of Liquid Crystal Orientation in the Lipid Layer on Tear Film Thinning and Breakup
The human tear film (TF) is thin multilayer fluid film that is critical for clear vision and ocular surface health. Its dynamics are strongly affected by a floating lipid layer and, in health, that layer slows evaporation and helps create a more uniform tear film over the ocular surface. The tear film lipid layer (LL) may have liquid crystalline characteristics and plays important roles in the health of the tear film. Previous models have treated the lipid layer as a Newtonian fluid in extensio…

Fibonacci and Lucas Sequences in Aperiodic Monotile Supertiles
Shiying Dong
https://arxiv.org/abs/2404.19621 https://arxiv.org/pdf/24…

Fibonacci and Lucas Sequences in Aperiodic Monotile Supertiles
This paper first discusses the size and orientation of hat supertiles. Fibonacci and Lucas sequences, as well as a third integer sequence linearly related to the Lucas sequence are involved. The result is then generalized to any aperiodic tile in the hat family.

FOD-Swin-Net: angular super resolution of fiber orientation distribution using a transformer-based deep model
Mateus Oliveira da Silva, Caio Pinheiro Santana, Diedre Santos do Carmo, Let\'icia Rittner
https://arxiv.org/abs/2402.11775

FOD-Swin-Net: angular super resolution of fiber orientation distribution using a transformer-based deep model
Identifying and characterizing brain fiber bundles can help to understand many diseases and conditions. An important step in this process is the estimation of fiber orientations using Diffusion-Weighted Magnetic Resonance Imaging (DW-MRI). However, obtaining robust orientation estimates demands high-resolution data, leading to lengthy acquisitions that are not always clinically available. In this work, we explore the use of automated angular super resolution from faster acquisitions to overcome…

This https://arxiv.org/abs/2308.14095 has been replaced.
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Prym Representations of the Handlebody Group
Let $S$ be an oriented, closed surface of genus $g.$ The mapping class group of $S$ is the group of orientation preserving homeomorphisms of $S$ modulo isotopy. In 1997, Looijenga introduced the Prym representations, which are virtual representations of the mapping class group that depend on a finite, abelian group. Let $V$ be a genus $g$ handlebody with boundary $S$. The handlebody group is the subgroup of those mapping classes of $S$ that extend over $V.$ The twist group is the subgroup of th…

This https://arxiv.org/abs/2302.02215 has been replaced.
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On 2-strong connectivity orientations of mixed graphs and related problems
A mixed graph $G$ is a graph that consists of both undirected and directed edges. An orientation of $G$ is formed by orienting all the undirected edges of $G$, i.e., converting each undirected edge $\{u,v\}$ into a directed edge that is either $(u,v)$ or $(v,u)$. The problem of finding an orientation of a mixed graph that makes it strongly connected is well understood and can be solved in linear time. Here we introduce the following orientation problem in mixed graphs. Given a mixed graph $G$, …

Identifying changing-look AGNs using variability characteristics
Shu Wang, Jong-Hak Woo, Elena Gallo, Hengxiao Guo, Donghoon Son, Minzhi Kong, Amit Kumar Mandal, Hojin Cho, Changseok Kim, Jaejin Shin
https://arxiv.org/abs/2402.18131

Identifying changing-look AGNs using variability characteristics
Changing-look (CL) Active Galactic Nuclei (AGNs), characterized by appearance/disappearance of broad emission lines in the span of a few years, present a challenge for the AGN unified model, whereby the Type 1 vs. Type 2 dichotomy results from orientation effects alone. We present a systematic study of a large sample of spectroscopically classified AGNs, using optical variability data from the Zwicky Transient Facility (ZTF) as well as follow-up spectroscopy data. We demonstrate that Type 1 vs.…

This https://arxiv.org/abs/2309.11242 has been replaced.
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Photoemission orbital tomography based on tight-binding approach: method and application to $π$-conjugated molecules
Conventional photoemission orbital tomography based on Fourier iterative method enables us to extract a projected two-dimensional (2D) molecular orbital from a 2D photoelectron momentum map (PMM) of planar $π$-conjugated molecules in a single-orientation system, while not in a multi-orientation system. In this work, we demonstrate photoemission orbital tomography for $π$-conjugated molecules with a tight-binding ansatz (linear combination of atomic orbitals). We analyze 2D PMMs of single-orie…

Simple inverse kinematics computation considering joint motion efficiency
Ansei Yonezawa, Heisei Yonezawa, Itsuro Kajiwara
https://arxiv.org/abs/2403.20128

Simple inverse kinematics computation considering joint motion efficiency
Inverse kinematics is an important and challenging problem in the operation of industrial manipulators. This study proposes a simple inverse kinematics calculation scheme for an industrial serial manipulator. The proposed technique can calculate appropriate values of the joint variables to realize the desired end-effector position and orientation while considering the motion costs of each joint. Two scalar functions are defined for the joint variables: one is to evaluate the end-effector positi…

Optical spin orientation of localized electrons and holes interacting with nuclei in an FA0.9Cs0.1PbI2.8Br0.2 perovskite crystal
Dennis Kudlacik, Nataliia E. Kopteva, Mladen Kotur, Dmitri R. Yakovlev, Kirill V. Kavokin, Carolin Harkort, Marek Karzel, Evgeny A. Zhukov, Eiko Evers, Vasilii V. Belykh, Manfred Bayer
https://arxiv.or…

Optical spin orientation of localized electrons and holes interacting with nuclei in an FA0.9Cs0.1PbI2.8Br0.2 perovskite crystal
Optical orientation of carrier spins by circularly polarized light is the basic concept and tool of spin physics in semiconductors. We study the optical orientation of electrons and holes in a crystal of the FA$_{0.9}$Cs$_{0.1}$PbI$_{2.8}$Br$_{0.2}$ lead halide perovskite by means of polarized photoluminescence, time-resolved differential reflectivity, and time-resolved Kerr rotation. At the cryogenic temperature of 1.6 K the optical orientation degree measured for continuous-wave excitaton rea…

Behind the Counter: Exploring the Motivations and Barriers of Online Counterspeech Writing
Kaike Ping, Anisha Kumar, Xiaohan Ding, Eugenia Rho
https://arxiv.org/abs/2403.17116

Behind the Counter: Exploring the Motivations and Barriers of Online Counterspeech Writing
Current research mainly explores the attributes and impact of online counterspeech, leaving a gap in understanding of who engages in online counterspeech or what motivates or deters users from participating. To investigate this, we surveyed 458 English-speaking U.S. participants, analyzing key motivations and barriers underlying online counterspeech engagement. We presented each participant with three hate speech examples from a set of 900, spanning race, gender, religion, sexual orientation, a…

This https://arxiv.org/abs/2306.17112 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Cosmic topology. Part IIa. Eigenmodes, correlation matrices, and detectability of orientable Euclidean manifolds
If the Universe has non-trivial spatial topology, observables depend on both the parameters of the spatial manifold and the position and orientation of the observer. In infinite Euclidean space, most cosmological observables arise from the amplitudes of Fourier modes of primordial scalar curvature perturbations. Topological boundary conditions replace the full set of Fourier modes with specific linear combinations of selected Fourier modes as the eigenmodes of the scalar Laplacian. We present f…

Snail: Secure Single Iteration Localization
James Choncholas, Pujith Kachana, Andr\'e Mateus, Gregoire Phillips, Ada Gavrilovska
https://arxiv.org/abs/2403.14916

Snail: Secure Single Iteration Localization
Localization is a computer vision task by which the position and orientation of a camera is determined from an image and environmental map. We propose a method for performing localization in a privacy preserving manner supporting two scenarios: first, when the image and map are held by a client who wishes to offload localization to untrusted third parties, and second, when the image and map are held separately by untrusting parties. Privacy preserving localization is necessary when the image an…

Identification and characterization of three-dimensional crack propagation mechanism in the Aluminium alloy AA2024-T3 using high-resolution Digital Image Correlation
Vanessa Sch\"one, Florian Paysan, Eric Breitbarth
https://arxiv.org/abs/2404.01852

Identification and characterization of three-dimensional crack propagation mechanism in the Aluminium alloy AA2024-T3 using high-resolution Digital Image Correlation
Fatigue crack growth is usually a three-dimensional problem, but it is often simplified to two dimensions to reduce complexity. However, this study investigates the relationships between microscopic effects such as crack kinking, shear lips, and plasticity that are present in reality. Therefore, crack propagation tests were carried out on 2-mm-thick MT-160 specimens of AA2024-T3 sheet material in L-T and T-L orientation. Using high-resolution digital image correlation (DIC), the plastic zone wa…

Simultaneous measurement of extensional stress and flow birefringence field for uniaxially extending worm-like micellar solutions
Masakazu Muto, Tatsuya Yoshino, Shinji Tamano
https://arxiv.org/abs/2404.17643

Simultaneous measurement of extensional stress and flow birefringence field for uniaxially extending worm-like micellar solutions
The present study proposes a novel and simple rheo-optical technique to investigate the relation between the rheology of complex fluids and their internal structural deformation under uniaxial extensional flow. The macroscale results of viscoelasticity from rheological measurements and microscale results of birefringence from optical measurements are combined to evaluate the microstructural deformation and orientation state inside the fluids under extensional stress. The proposed technique comb…

😜 From the guy with the 'never back down' PAC:
DeSantis guts "Don't Say Gay" law in deal with LGBTQ advocates - National Zero
https://nationalzero.com/2024/03/11/desantis-guts-dont-say-gay-law-in-deal-wit…

This https://arxiv.org/abs/2006.07706 has been replaced.
link: https://scholar.google.com/scholar?q=a

Taut foliations, left-orders, and pseudo-Anosov mapping tori
For a large class of 3-manifolds with taut foliations, we construct an action of $π_1(M)$ on $\mathbb{R}$ by orientation preserving homeomorphisms which captures the transverse geometry of the leaves. This action is complementary to Thurston's universal circle. Applications include the left-orderability of the fundamental groups of every non-trivial surgery on the figure eight knot. Our techniques also apply to at least 2598 manifolds representing 44.7% of the non-L-space rational homology sph…

This https://arxiv.org/abs/1501.02437 has been replaced.
link: https://scholar.google.com/scholar?q=a

Characterization of graphs without even $F$-orientations
A graph $G$ is $1$-extendible if every edge belongs to at least one $1$-factor of $G$. Let $G$ be a graph with a $1$-factor $F$. Then an even $F$-orientation of $G$ is an orientation in which each $F$-alternating cycle has exactly an even number of edges directed in the same fixed direction around the cycle. In this paper, we examine the structure of 1-extendible graphs $G$ which have no even $F$-orientation where $F$ is a fixed $1$-factor of $G$. In the case of graphs of connectivity at least …

The Strangely Serious Implications of Math’s ‘Ham Sandwich Theorem’
Math’s “Ham Sandwich Theorem” promises that for any three (potentially asymmetric) objects in any orientation, there is always some straight cut that simultaneously bisects them all.
This fact has some bizarre implications as well as some sobering ones as it relates to gerrymandering in politics.
Contemplate the bizarre implications here. You can draw a line across the U.S. so that exactly half of the nati…

The Strangely Serious Implications of Math's 'Ham Sandwich Theorem'
A simple solution to gerrymandering crumbles when confronted with math’s ‘ham sandwich theorem’

Orientation Preserving Homeomorphisms of the Plane having BP-Chain Recurrent Points
Jiehua Mai, Kesong Yan, Fanping Zeng
https://arxiv.org/abs/2404.10247 h…

Orientation Preserving Homeomorphisms of the Plane having BP-Chain Recurrent Points
More than a century ago, L. E. J. Brouwer proved a famous theorem, which says that any orientation preserving homeomorphism of the plane having a periodic point must have a fixed point. In recent years, there are still some authors giving various proofs of this fixed point theorem. In \cite{Fa}, Fathi showed that the condition``having a periodic point'' in this theorem can be weakened to ``having a non-wandering point''. In this paper, we first give a new proof of Brouwer's theorem, which is re…

Simultaneous measurement of extensional stress and flow birefringence field for uniaxially extending worm-like micellar solutions
Masakazu Muto, Tatsuya Yoshino, Shinji Tamano
https://arxiv.org/abs/2404.17643

Simultaneous measurement of extensional stress and flow birefringence field for uniaxially extending worm-like micellar solutions
The present study proposes a novel and simple rheo-optical technique to investigate the relation between the rheology of complex fluids and their internal structural deformation under uniaxial extensional flow. The macroscale results of viscoelasticity from rheological measurements and microscale results of birefringence from optical measurements are combined to evaluate the microstructural deformation and orientation state inside the fluids under extensional stress. The proposed technique comb…

This https://arxiv.org/abs/2403.06849 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On equivariant embeddings of hyperbolic surfaces into hyperbolic 3-manifolds
We consider the problem of when a closed hyperbolic surface admits a totally geodesic embedding into a closed hyperbolic 3-manifold, and in particular equivariant versions of such embeddings. In a previous paper we considered orientation-preserving actions on orientable surfaces, in the present paper actions of maximal possible order on nonorientable surfaces, and maximal orientation-reversing actions on orientable surfaces.

This https://arxiv.org/abs/2306.01664 has been replaced.
initial toot: https://mastoxiv.page/@a…

Chiral electrons and spin selectivity at chiral-achiral interfaces
Chiral molecules can selectively transport electrons of a particular spin orientation, yet the underlying mechanism remain poorly understood. Here, we present theoretical evidence that electrons propagating through chiral materials with screw symmetry exhibit chirality themselves and carry symmetry-induced pseudo-angular momentum (PAM) which must be characterized by both spin and orbital components. The chiral electron transport is PAM polarized, with counterpropagating states exhibiting opposi…

This https://arxiv.org/abs/2311.12141 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Slit-slide-sew bijections for constellations and quasiconstellations
We extend so-called slit-slide-sew bijections to constellations and quasiconstellations. We present an involution on the set of hypermaps given with an orientation, one distinguished corner, and one distinguished edge leading away from the corner while oriented in the given orientation. This involution reverts the orientation, exchanges the distinguished corner with the distinguished edge in some sense, slightly modifying the degrees of the incident faces in passing, while keeping all the other…

Formation of Oriented Bilayer Motif -- Vanadyl Phthalocyanine on Ag(100)
William Koll, Corina Urdaniz, Kyungju Noh, Yujeong Bae, Christoph Wolf, Jay Gupta
https://arxiv.org/abs/2403.19821

Formation of Oriented Bilayer Motif -- Vanadyl Phthalocyanine on Ag(100)
The adsorption and self-assembly of vanadyl phthalocyanine molecules on Ag(100) has been investigated using a combination of scanning tunneling microscopy and density functional theory. At sub-monolayer coverage, we observe two distinct adsorption configurations of isolated molecules, corresponding to the central O atom pointing toward (O-down) or away (O-up) from the substrate. Upon adsorption in the O-up orientation, the otherwise achiral molecules take on a windmill-like chiral appearance du…

A characterization on $(g,f)$-parity orientations
Hongliang Lu, Xinxin Ma
https://arxiv.org/abs/2404.04797 https://arxiv.org/pdf/2404…

A characterization on $(g,f)$-parity orientations
Let $G$ be a graph and $g,f:V(G)\to2^N$ be two set functions such that $g(v)\le f(v)$ and $g(v)\equiv f(v)\pmod 2$ for every $v\in V(G)$. An orientation $O$ of $G$ is called a $(g,f)$-parity orientation if $g(v)\le d^+_O(v)\le f(v)$ and $g(v)\equiv d^+_O(v)\pmod 2$ for every $v\in V(G)$. In this paper, we give a Tutte-type characterization for a graph to have a $(g,f)$-parity orientation.

This https://arxiv.org/abs/2401.08349 has been replaced.
initial toot: https://mastoxiv.page/@a…

Stochastic 3D microstructure modeling of twinned polycrystals for investigating the mechanical behavior of $γ$-TiAl intermetallics
A stochastic 3D microstructure model for polycrystals is introduced which incorporates two types of twin grains, namely neighboring and inclusion twins. They mimic the presence of crystal twins in $γ$-TiAl polycrystalline microstructures as observed by 3D imaging techniques. The polycrystal grain morphology is modeled by means of Voronoi and -- more generally -- Laguerre tessellations. The crystallographic orientation of each grain is either sampled uniformly on the space of orientations or ch…

Tuning the intrinsic anomalous Hall effect from large to zero in the two ferromagnetic states of the layered SmMn2Ge2
Mahima Singh, Jyotirmoy Sau, Banik Rai, Arunanshu Panda, Manoranjan Kumar, Nitesh Kumar
https://arxiv.org/abs/2403.19581

Tuning the intrinsic anomalous Hall effect from large to zero in the two ferromagnetic states of the layered SmMn2Ge2
The intrinsic anomalous Hall conductivity in a ferromagnetic metal is completely determined by its band structure. Since the spin orientation direction is an important band structure tuning parameter, it is highly desirable to study the anomalous Hall effect in a system with multiple spin reorientation transitions. We study a layered tetragonal room temperature ferromagnet SmMn2Ge2, which gives us the opportunity to measure magneto-transport properties where the long c-axis and the short a-axis…