Tootfinder

Rigid body rotation and chiral reorientation combine in filamentous E. coli swimming in low-Re flows
Richard Z. DeCurtis, Yongtae Ahn, Jane Hill, Sara M. Hashmi
https://arxiv.org/abs/2508.00779

Rigid body rotation and chiral reorientation combine in filamentous E. coli swimming in low-Re flows
Antibiotic doses below a minimum inhibitory concentration turn off bacteria cell division, but not cell growth. As a result, rod-like bacteria including E. coli can elongate many times their original length without increasing their width. The swimming behavior of these filamentous bacteria through small channels may provide insights into how antibiotic-resistant bacteria swim to channel walls. Such swimming behaviors in settings like hospital tubing may facilitate adhesion, biofilm formation an…

Looking Back: Field theory of transiently chiral active particles
Callum Britton, Gunnar Pruessner, Thibault Bertrand
https://arxiv.org/abs/2507.01503 http…

Looking Back: Field theory of transiently chiral active particles
We derive a Doi-Peliti Field Theory for transiently chiral active particles in two dimensions, that is, active Brownian particles that undergo tumbles via a diffusing reorientation angle. Using this framework, we compute the mean squared displacement for both uniformly distributed and fixed initial reorientations. We also calculate an array of orientation-based observables, to quantify the transiently chiral behaviour observed.

Observation of Dual Spin Reorientation Transitions in Polycrystalline CeCr$_x$Fe$_{1-x}$O$_3$(x=0.33 and 0.67)
Stephen Tsui, Sara J. Callori
https://arxiv.org/abs/2506.22709

Observation of Dual Spin Reorientation Transitions in Polycrystalline CeCr$_x$Fe$_{1-x}$O$_3$(x=0.33 and 0.67)
We investigate the magnetic behavior of polycrystalline CeCr$_x$Fe$_{1-x}$O$_3$ (x = 0, 0.33, 0.67, and 1) synthesized via solid state reaction. Rare earth orthoferrite and orthochromite materials are well known for exhibiting spin reorientation transitions. Cr$^{3+}$ doping in CeFeO$_3$ results in the unusual occurrence of two spin reorientation transitions, $Γ_4$(G$_x$, A$_y$, F$_z$) $\rightarrow$ $Γ_1$(A$_x$, G$_y$, C$_z$) near 230 K and $Γ_4$(G$_x$, A$_y$, F$_z$) $\rightarrow$ $Γ_2$(F$_…

State-switching navigation strategies in C. elegans are beneficial for chemotaxis
Kevin S. Chen, Andrew M. Leifer, Jonathan W. Pillow
https://arxiv.org/abs/2508.00191 https://…

State-switching navigation strategies in C. elegans are beneficial for chemotaxis
Animals employ different strategies for relating sensory input to behavioral output to navigate sensory environments, but what strategy to use, when to switch and why remain unclear. In C. elegans, navigation is composed of 'steering' and 'turns', corresponding to small heading changes and large reorientation events, respectively. It is unclear whether transitions between these elements are driven solely by sensory input or are influenced by internal states that persist over time. It also remai…

A Multi-Scale Finite Element Method for Investigating Fiber Remodeling in Hypertrophic Cardiomyopathy
Mohammad Mehri, Kenneth S. Campbell, Lik Chuan Lee, Jonathan F. Wenk
https://arxiv.org/abs/2507.02193

A Multi-Scale Finite Element Method for Investigating Fiber Remodeling in Hypertrophic Cardiomyopathy
A significant hallmark of hypertrophic cardiomyopathy (HCM) is fiber disarray, which is associated with various cardiac events such as heart failure. Quantifying fiber disarray remains critical for understanding the disease s complex pathophysiology. This study investigates the role of heterogeneous HCM-induced cellular abnormalities in the development of fiber disarray and their subsequent impact on cardiac pumping function. Fiber disarray is predicted using a stress-based law to reorient myof…

The effect of dephasing and spin-lattice relaxation during the switching processes in quantum antiferromagnets
Asliddin Khudoyberdiev, G\"otz S. Uhrig
https://arxiv.org/abs/2508.00430

The effect of dephasing and spin-lattice relaxation during the switching processes in quantum antiferromagnets
The control of antiferromagnetic order can pave the way to large storage capacity as well as fast manipulation of stored data. Here achieving a steady-state of sublattice magnetization after switching is crucial to prevent loss of stored data. The present theoretical approach aims to obtain instantaneous stable states of the order after reorienting the Néel vector in open quantum antiferromagnets using time-dependent Schwinger boson mean-field theory. The Lindblad formalism is employed to coup…

From CreativeCommons with their "signals" to the OSI with their "open source AI" fiasco it seems that the stewards of the legal structures protecting the digital commons are not on the side of people actually wanting to contribute to the commons for humanity. (Maybe they never were.)
If those organizations don't reorient themselves to align with people's needs maybe we need to fork.

Simulation studies of the isovector reorientation effect of deuteron scattering on heavy target
Baiting Tian, Boyuan Zhang, Yijie Wang, Tadaaki Isobe, Hideaki Otsu, Li Ou, Zhigang Xiao
https://arxiv.org/abs/2506.15738

Simulation studies of the isovector reorientation effect of deuteron scattering on heavy target
The isovector reorientation (IVR) effect of deuteron scattering on heavy target provides a novel means to probe the nuclear isovector potential which gives rise to the nuclear symmetry energy. The simulations studies on the experimental measurement of IVR effect using SAMURAI terminal at RIKEN Nishina center have been performed to demonstrate the feasibility of the experiment. By introducing a well designed polarimeter to detect the $\mathrm{p}(\vec{\mathrm{d}}, \mathrm{d})\mathrm{p}$ elastic s…

Light-programmable reorientation of the crystallographic c-axis of Tellurium thin films
Yuta Kobayashi, Arata Mitsuzuka, Haruo Kondo, Makoto Shoshin, Jun Uzuhashi, Tadakatsu Ohkubo, Masamitsu Hayashi, Masashi Kawaguchi
https://arxiv.org/abs/2508.18584

Light-programmable reorientation of the crystallographic c-axis of Tellurium thin films
Tellurium (Te), a two-dimensional material with pronounced structural anisotropy, exhibits exceptional electrical and optical properties that are highly sensitive to its crystallographic orientation. However, conventional synthesis techniques offer limited control over the in-plane alignment of Te's crystallographic c-axis, hindering large-scale integration. Here, we report a novel, non-contact method to dynamically manipulate the c-axis orientation of Te thin films using linearly polarized pic…