Tootfinder

This https://arxiv.org/abs/2111.15488 has been replaced.
link: https://scholar.google.com/scholar?q=a

High-Temperature Anomalous Metal States in Iron-Based Interface Superconductors
The nature of the anomalous metal state has been a major puzzle in condensed matter physics for more than three decades. Here, we report systematic investigation and modulation of the anomalous metal states in high-temperature interface superconductor FeSe films on SrTiO3 substrate. Remarkably, under zero magnetic field, the anomalous metal state persists up to 20 K in pristine FeSe films, an exceptionally high temperature standing out from previous observations. In stark contrast, for the FeSe…

Fuuuuck. Once again, the NYC government website is absolutely useless.

Self-supervised learning for classifying paranasal anomalies in the maxillary sinus
Debayan Bhattacharya, Finn Behrendt, Benjamin Tobias Becker, Lennart Maack, Dirk Beyersdorff, Elina Petersen, Marvin Petersen, Bastian Cheng, Dennis Eggert, Christian Betz, Anna Sophie Hoffmann, Alexander Schlaefer
https://arxiv.org/abs/2404.18599 https://arxiv.org/pdf/2404.18599
arXiv:2404.18599v1 Announce Type: new
Abstract: Purpose: Paranasal anomalies, frequently identified in routine radiological screenings, exhibit diverse morphological characteristics. Due to the diversity of anomalies, supervised learning methods require large labelled dataset exhibiting diverse anomaly morphology. Self-supervised learning (SSL) can be used to learn representations from unlabelled data. However, there are no SSL methods designed for the downstream task of classifying paranasal anomalies in the maxillary sinus (MS).
Methods: Our approach uses a 3D Convolutional Autoencoder (CAE) trained in an unsupervised anomaly detection (UAD) framework. Initially, we train the 3D CAE to reduce reconstruction errors when reconstructing normal maxillary sinus (MS) image. Then, this CAE is applied to an unlabelled dataset to generate coarse anomaly locations by creating residual MS images. Following this, a 3D Convolutional Neural Network (CNN) reconstructs these residual images, which forms our SSL task. Lastly, we fine-tune the encoder part of the 3D CNN on a labelled dataset of normal and anomalous MS images.
Results: The proposed SSL technique exhibits superior performance compared to existing generic self-supervised methods, especially in scenarios with limited annotated data. When trained on just 10% of the annotated dataset, our method achieves an Area Under the Precision-Recall Curve (AUPRC) of 0.79 for the downstream classification task. This performance surpasses other methods, with BYOL attaining an AUPRC of 0.75, SimSiam at 0.74, SimCLR at 0.73 and Masked Autoencoding using SparK at 0.75.
Conclusion: A self-supervised learning approach that inherently focuses on localizing paranasal anomalies proves to be advantageous, particularly when the subsequent task involves differentiating normal from anomalous maxillary sinuses. Access our code at https://github.com/mtec-tuhh/self-supervised-paranasal-anomaly

Higher-order topology protected by latent crystalline symmetries
L. Eek, M. R\"ontgen, A. Moustaj, C. Morais Smith
https://arxiv.org/abs/2405.02704 ht…

Higher-order topology protected by latent crystalline symmetries
We demonstrate that rotation symmetry is not a necessary requirement for the existence of fractional corner charges in Cn-symmetric higher-order topological crystalline insulators. Instead, it is sufficient to have a latent rotation symmetry, which may be revealed upon performing an isospectral reduction on the system. We introduce the concept of a filling anomaly for latent crystalline symmetric systems, and propose modified topological invariants. The notion of higher- order topology in two d…

If you don't live in Georgia (or even in Athens), you may not know who Bill Paul was, but this obituary penned by his family gives some idea of how important he was to art in the state. The acquisitions he made for our collection and the exhibitions he organized truly opened the door for experimental and contemporary art. RIP. ❤️
https:…

Noted Athens artist Bill Paul dies at age 89
From the Lord & Stephens Funeral Home:William Dewitt "Bill" Paul, Jr., 89, of Athens, GA, passed away on Friday, May 3, 2024, following multiple extended illnesses. Born at home in the rural town of Wadley, GA, Bill spent his formative years amidst the charm of his family's general store and family farm, playing with and caring for farm animals and getting into trouble in elementary school for doodling on the bottoms of his shoes during nap time.Bill is preceded in death by his dear wife of 51 y

Closing the Information Gap in Unidentified Anomalous Phenomena (UAP) Studies
Gretchen R. Stahlman
https://arxiv.org/abs/2403.15368 https://

Closing the Information Gap in Unidentified Anomalous Phenomena (UAP) Studies
Unidentified Anomalous Phenomena (UAP), also known as Unidentified Flying Objects (UFOs), has shifted from being a stigmatized topic on the fringes of scientific inquiry to a legitimate subject of scientific interest with a need for high quality, curated data, and rigorous scientific investigation. This paper presents a preliminary scoping review and analysis of scholarly literature related to UAP from 1967 until 2023, exploring a diverse range of research areas across disciplines to illustrate…

As the Dad of a 21-week preemie who died, a 23-week preemie who lives, and as a 30-week preemie myself.
No: not if it means offering more traumatized parents more uncertain efforts to save ever smaller babies.
It is already soul-flaying to have an early preemie. Many die. How a 23-week preemie *or a 30-week preemie* fares is a dice toss.
(My attempt to elaborate on that was just too hard.)

NPR :press: (@NPR@press.coop)
Attached: 1 image An artificial womb could build a bridge to health for premature babies Artificial wombs could someday save babies born very prematurely. Even though the experimental technology is still in animal tests, there are mounting questions about its eventual use with humans. #press https://www.npr.org/sections/health-shots/2024/04/12/1241895501/artificial-womb-premature-birth?utm_medium=JSONFeed&utm_campaign=news&utm_source=press.coop

Propagation, dissipation and breakdown in quantum anomalous Hall edge states probed by microwave edge plasmons
Torsten R\"oper, Hugo Thomas, Daniel Rosenbach, Anjana Uday, Gertjan Lippertz, Anne Denis, Pascal Morfin, Alexey A. Taskin, Yoichi Ando, Erwann Bocquillon
https://arxiv.org/abs/2405.19983

Propagation, dissipation and breakdown in quantum anomalous Hall edge states probed by microwave edge plasmons
The quantum anomalous Hall (QAH) effect, with its single chiral, topologically protected edge state, offers a platform for flying Majorana states as well as non-reciprocal microwave devices. While recent research showed the non-reciprocity of edge plasmons in Cr-doped $\mathrm{(Bi_xSb_\text{1-x})_2Te_3}$, the understanding of their dissipation remains incomplete. Our study explores edge plasmon dissipation in V-doped $\mathrm{(Bi_xSb_\text{1-x})_2Te_3}$ films, analyzing microwave transmission a…

This https://arxiv.org/abs/2303.06204 has been replaced.
initial toot: https://mastoxiv.page/@a…

Electrically Controlled Anomalous Hall Effect and Orbital Magnetization in Topological Magnet MnBi2Te4
In this work, we propose an intrinsic mechanism to understand the even-odd effect, namely the opposite signs of the anomalous Hall resistance and the different shapes of hysteresis loops for even and odd septuple layers (SLs), of MBE-grown MnBi2Te4 thin films with electron doping. In particular, we show that the non-zero hysteresis loops in the anomalous Hall and magnetic circular dichroism measurements for even-SLs MnBi2Te4 films are originated from two different anti-ferromagnetic (AFM) state…

This https://arxiv.org/abs/2303.06204 has been replaced.
initial toot: https://mastoxiv.page/@a…

Electrically Controlled Anomalous Hall Effect and Orbital Magnetization in Topological Magnet MnBi2Te4
In this work, we propose an intrinsic mechanism to understand the even-odd effect, namely the opposite signs of the anomalous Hall resistance and the different shapes of hysteresis loops for even and odd septuple layers (SLs), of MBE-grown MnBi2Te4 thin films with electron doping. In particular, we show that the non-zero hysteresis loops in the anomalous Hall and magnetic circular dichroism measurements for even-SLs MnBi2Te4 films are originated from two different anti-ferromagnetic (AFM) state…