cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Refining Einstein's Relativity with Modern Data
Creators: name: Stewart, Chris
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Physics
subject: Physics
subject: Mathematical physics
subject: Theoretical physics
subject: physics
subject: General relativity
subject: modified gravity
subject: Gravitational waves
subject: gravitational waves
subject: Black holes
subject: cosmology
subject: frame-dragging
subject: quantum field theory
subject: metric tensor
subject: spacetime curvature
subject: Einstein field equations
subject: high-energy physics

description: Abstract:

This paper examines potential refinements to Einstein’s theory of relativity in light of modern astrophysical observations, quantum gravity research, and precision gravitational wave data. While general relativity (GR) remains the most successful theory of gravity, recent developments—such as high-precision pulsar timing, frame-dragging measurements, and anomalies in cosmic expansion—suggest that refinements or extensions may be necessary at extreme energy scales.

We propose a modified relativistic framework that integrates quantum field effects, extended metric formulations, and non-local curvature interactions. Our analysis explores how gravitational wave data from LIGO/Virgo, black hole imaging from the Event Horizon Telescope (EHT), and cosmological redshift deviations could signal areas where GR requires corrections or extensions. Specifically, we investigate whether observed gravitational anomalies can be explained by small deviations in Einstein’s field equations, leading to new predictions for black hole interiors, dark matter interactions, and high-energy gravity effects.

Key Highlights:

Review of recent observational anomalies that challenge classical GR predictions.

Extensions to Einstein’s field equations incorporating quantum and non-local effects.

Impact on black hole physics, gravitational waves, and cosmic acceleration.

Potential testable deviations in gravitational lensing, redshift data, and frame-dragging experiments.

This work contributes to the ongoing effort to refine our understanding of spacetime, gravity, and relativity, offering new testable predictions that could guide future theoretical and experimental physics.

Keywords: General relativity, modified gravity, gravitational waves, black holes, cosmology, frame-dragging, quantum field theory, metric tensor, spacetime curvature, Einstein field equations, high-energy physics.
Deep learning-assisted imaging through stationary scattering media
Creators: name: Rawat, Siddharth
name: Wendoloski, Jonathan
name: Wang, Anna
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Image and Video Processing (eess.IV)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Imaging through scattering media is a challenging problem owing to speckle decorrelations from perturbations in the media itself. For in-line imaging modalities, which are appealing because they are compact, require no moving parts, and are robust, negating the effects of such scattering becomes particularly challenging. Here we explore the effect of stationary scattering media on light scattering in in-line geometries, including digital holographic microscopy. We consider various object-scatterer scenarios where the object is distorted or obscured by additional stationary scatterers, and use an advanced deep learning (DL) generative methodology, generative adversarial networks (GANs), to mitigate the effects of the additional scatterers. Using light scattering simulations and experiments on objects of interest with and without additional scatterers, we find that conditional GANs can be quickly trained with minuscule datasets and can also efficiently learn the one-to-one statistical mapping between the cross-domain input-output image pairs. Training such a network yields a standalone model, that can be used later to inverse or negate the effect of scattering, yielding clear object reconstructions for object retrieval and downstream processing. Moreover, it is well-known that the coherent point spread function (c-PSF) of a stationary scattering optical system is a speckle pattern which is spatially shift variant. We show that with rapid training using only 20 image pairs, it is possible to negate this undesired scattering to accurately localize diffraction-limited impulses with high spatial accuracy, therefore transforming the earlier shift variant system to a linear shift invariant (LSI) system.
description: 4 figures
Nitrogen decoration of basal plane dislocations in 4H-SiC
Creators: name: Li, Jiajun
name: Luo, Hao
name: Yang, Guang
name: Zhang, Yiqiang
name: Pi, Xiaodong
name: Yang, Deren
name: Wang, Rong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Basal-plane dislocations (BPDs) pose a great challenge to the reliability of bipolar power devices based on the 4H silicon carbide (4H-SiC). It is well established that heavy nitrogen (N) doping promotes the conversion of BPDs to threading edge dislocations (TEDs) and improves the reliability of 4H-SiC-based bipolar power devices. However, the interaction between N and BPDs, and the effect of N on the electronic properties of BPDs are still ambiguous, which significantly hinder the understanding on the electron-transport mechanism of 4H-SiC-based bipolar power devices. Combining molten-alkali etching and the Kelvin probe force microscopy (KPFM) analysis, we demonstrate that BPDs create acceptor-like states in undoped 4H-SiC, while acting as donors in N-doped 4H-SiC. First-principles calculations verify that BPDs create occupied defect states above the valence band maximum (VBM) and unoccupied defect states under the conduction-band minimum (CBM) of undoped 4H-SiC. The electron transfer from the defect states of intrinsic defects and native impurities to the unoccupied defect states of BPDs gives rise to the acceptor-like behavior of BPDs in undoped 4H-SiC. Defect formation energies indicate that N atoms can spontaneously decorate BPDs during the N doping of 4H-SiC. The binding between N and BPD is strong against decomposition. The accumulation of N dopants at the core of BPDs results in the accumulation of donor-like states at the core of BPDs in N-doped 4H-SiC. This work not only enriches the understanding on the electronic behavior of BPDs in N-doped 4H-SiC, but also helps understand the electron transport mechanism of 4H-SiC-based bipolar power devices.
description: 20 pages, 5 figures
"Che hoah unan" formule de fin de chanson (En voilà encore une)
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
Strongly anisotropic electronic and magnetic structures in oxide dichlorides RuOCl$_2$ and OsOCl$_2$
Creators: name: Zhang, Yang
name: Lin, Ling-Fang
name: Moreo, Adriana
name: Maier, Thomas A.
name: Alvarez, Gonzalo
name: Dagotto, Elbio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Here, using density functional theory and density matrix renormalization group methods, we investigate the electronic and magnetic properties of RuOCl$_2$ and OsOCl$_2$ with $d^4$ electronic configurations. Different from a previous study using VOI$_2$ with $d^1$ configuration, these systems with $4d^4$ or $5d^4$ do not exhibit a ferroelectric instability along the $a$-axis. Due to the fully-occupied $d_{xy}$ orbital in RuOCl$_2$ and OsOCl$_2$, the Peierls instability distortion disappears along the $b$-axis, leading to an undistorted I${\rm mmm}$ phase (No. 71). Furthermore, we observe strongly anisotropic electronic and magnetic structures along the $a$-axis. The large crystal-field splitting energy (between $d_{xz/yz}$ and $d_{xy}$ orbitals) and large hopping between nearest-neighbor Ru and Os atoms suppresses the spin-orbital effect in $M$OCl$_2$ ($M$ = Ru or Os) with electronic density $n = 4$, resulting in a spin-1 system instead of a $J = 0$ singlet ground state. Moreover, we find staggered antiferromagnetic order with $π$ wavevector along the $M$-O chain direction ($a$-axis) while the magnetic coupling along the $b$-axis is weak. Based on Wannier functions from first-principles calculations, we calculated the relevant hopping amplitudes and crystal-field splitting energies of the $t_{2g}$ orbitals for the Os atoms to construct a multi-orbital Hubbard model for the $M$-O chains. Staggered AFM with $\uparrow$-$\downarrow$-$\uparrow$-$\downarrow$ spin structure dominates in our DMRG calculations, in agreement with DFT calculations.
description: 14 pages, 15 figures
XAYRIDDIN SULTON HIKOYALARIDAGI IBORALARNING LEKSIK-SEMANTIK XUSUSIYATLARI
Creators: name: Abdullaeva, Yulduz
Publisher: name: Zenodo
Year: 2025

description: ushbu maqolada adabiyot tilining boyligi, xalq og‘zaki ijodi va badiiy ifoda vositalari hamda Xayriddin Sulton ijodidagi iboralarning o‘rni, ularning tarixi, madaniy ildizlari va nazariy asoslari. Iboralarning leksik-semantik tahlili. Xayriddin Sulton hikoyalarida qo‘llaniladigan iboralar: xalqona iboralar, muallif tomonidan yaratilgan yangi iboralar, ularning semantik qatlamlari va madaniy ma’nolari. Badiiy uslub va iboralarning roli. Iboralarning hikoya tuzilishidagi, obraz yaratishdagi, hissiy va estetik ifoda vositalaridagi o‘rni; til va uslub o‘rtasidagi bog‘lanishlar xususida so‘z boradi.
PLOOPS 2011 cruise,Thalia R/V
Creators: name: DUBOIS Stanislas
Publisher: name: Sismer
Year: 2011

description: Les peuplements à Haploops (crustacé amphipode tubicole), pourtant originaux et uniques, sont très largement méconnus et probablement en phase d'extension à l'échelle des côtes bretonnes. L'objectif général de cette proposition est de comprendre la diversité et le fonctionnement des communautés à Haploops sp. et le(s) rôle(s) qu'elles jouent au sein de l'écosystème qui les abrite. A travers ce modèle biologique particulier, l'étude vise à définir et à caractériser le patrimoine biologique que représente cet habitat ainsi que son niveau d'importance en terme de biodiversité fonctionnelle, au regard de ceux qui l'entourent. L'enjeu est aussi de révéler la biodiversité d'un habitat subtidal méconnu et peu représenté en terme d'emprise spatiale, mais pourtant probablement important. Il apparaît également nécessaire de connaître les espèces qui utilisent, de façon permanente ou temporaire, cet habitat (refuge, nurseries, zone d'alimentation') afin de définir sa valeur écologique et fonctionnelle. Cette étude doit permettre d'appréhender les facteurs environnementaux (naturels ou anthropiques) qui structurent (positivement ou négativement) cet habitat. In fine, il est attendu la construction d'un schéma conceptuel sur le fonctionnement de cet habitat, définissant à quelles échelles d'influence, spatiale et temporelle, se font les modifications engendrées par les facteurs biotiques et abiotiques sur cette communauté. Comprendre les pressions environnementales subies par cet habitat permet donc de relier son évolution aux changements globaux, mais permet aussi de formuler un avis sur les conséquences d'une extension massive de cet habitat ou au contraire, sur les conséquences écologiques et fonctionnelles de sa disparition.
Top-N Recommendation Algorithms: A Quest for the State-of-the-Art
Creators: name: Anelli, Vito Walter
name: Bellogín, Alejandro
name: Di Noia, Tommaso
name: Jannach, Dietmar
name: Pomo, Claudio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Research on recommender systems algorithms, like other areas of applied machine learning, is largely dominated by efforts to improve the state-of-the-art, typically in terms of accuracy measures. Several recent research works however indicate that the reported improvements over the years sometimes "don't add up", and that methods that were published several years ago often outperform the latest models when evaluated independently. Different factors contribute to this phenomenon, including that some researchers probably often only fine-tune their own models but not the baselines. In this paper, we report the outcomes of an in-depth, systematic, and reproducible comparison of ten collaborative filtering algorithms - covering both traditional and neural models - on several common performance measures on three datasets which are frequently used for evaluation in the recent literature. Our results show that there is no consistent winner across datasets and metrics for the examined top-n recommendation task. Moreover, we find that for none of the accuracy measurements any of the considered neural models led to the best performance. Regarding the performance ranking of algorithms across the measurements, we found that linear models, nearest-neighbor methods, and traditional matrix factorization consistently perform well for the evaluated modest-sized, but commonly-used datasets. Our work shall therefore serve as a guideline for researchers regarding existing baselines to consider in future performance comparisons. Moreover, by providing a set of fine-tuned baseline models for different datasets, we hope that our work helps to establish a common understanding of the state-of-the-art for top-n recommendation tasks.
ResearchBox 234, 'Social Pressure to be Busy & Emotional Well-Being', https://researchbox.org/234
Creators: name: Verity Lua
name: Nadyanna Majeed
name: Andree Hartanto
Publisher: name: Zenodo
Year: 2025

description: Box title: 'Social Pressure to be Busy & Emotional Well-Being'   Reference: Lua VYQ, Majeed NM, Leung AK, Hartanto A. (2022) 'A daily within-person investigation on the link between social expectancies to be busy and emotional wellbeing: the moderating role of emotional complexity acceptance'. Cognition and Emotion. :1-8. doi: 10.1080/02699931.2022.2054778Note: this backup was created automatically by a ResearchBox bot
Closing the Gender Gap in Healthcare Leadership: Can Administrative Fellowships Play a Role?
Creators: name: Robbins, Julie
name: Graham, Brooke Z.
name: Hall, Randa Smith
name: Garman, Andrew N.
name: Simms, Jeffrey
Publisher: name: Wolters Kluwer
Year: 2022

description:
GOAL: Although women make up most of the healthcare workforce, they are underrepresented in higher levels of leadership positions. Leadership development programs for early careerists, such as administrative fellowships, have been suggested as one strategy for accelerating gender equity in leadership roles. However, the potential impact of these programs has not yet been the subject of systematic evaluation. In this study, we examined the (1) benefits of administrative fellowship programs on career attainment and (2) differences in attainment by gender. METHODS: We completed this study using a data set involving alumni from a consortium of 11 graduate healthcare management programs whose students frequently pursue administrative fellowships. Our data included individual-level demographic and career attainment data for graduating classes from 5, 10, and 20 years prior to the reference year. Using multiple regression analysis, we tested the relationship of three independent variables-graduation year, gender, and completion of a fellowship-on career attainment. This analysis enabled us to determine differences in overall career attainment by gender, evaluate the role of fellowships in career attainment, and consider the differential impact of fellowships on attainment by gender. PRINCIPAL FINDINGS: Our findings suggest that fellowship programs accelerate leadership career paths for individual leaders, but that the effect is stronger for males than their female counterparts. PRACTICAL APPLICATIONS: These findings not only support the value of administrative fellowships for early careerist leadership development but also suggest that closing the gender disparity gap in leadership may require additional and focused career-supportive strategies. We provide recommendations for healthcare organizations in developing their administrative fellowship programs to help minimize the gender disparity in healthcare leadership positions. Furthermore, we discuss research implications and future areas of research in administrative fellowships.
Demko-Feder pihentő alvást segítő ágybelső, matrac kifejlesztése a DE-SPAN Kft-nél
Creators: name: Szeles, Gyorgy
name: Varga, Levente
Publisher: name: Zenodo
Year: 2025
Subjects: Egészség
Bútoripar
Matrac
alvás

description: A projekt keretében új Bioszisztéma prototípus kialakítását tervezzük, melyben a rugalmas lécesbetét és a biomatrac előnyös tulajdonságait integrálva olyan ágybelsőt alakítunk ki, mely egy egységet alkot; a matracmagba integráljuk a duplasoros, rugalmas lécesbetétet. Az újonnan kifejlesztendő Bioszisztéma megteremti annak a feltételeit, hogy a népegészségügyi szempontból kiemelt jelentőséggel bíró nyaki, háti és deréktáji gerincpanaszokkal bíró lakosság minél nagyobb részéhez eljuthasson a termék, ezzel javítva az e panaszokkal élők életminőségét, továbbá csökkentve az egészségügyi ellátórendszerre háruló financiális terheket. Mindezeken túl a Bioszisztéma, mint prevenciós/megelőző eszköz is javíthatja a magyar lakosság életminőségét (megelőzi a gerincfájdalmak és alvászavarok okozta problémákat), ami szintén mérsékli az egészségügyi terheket. Az előzetes felmérések szerint az újonnan kifejlesztett integrált rendszer a nemzetközi piacokon is sikeres fogadtatásban részesülhet, a könnyebb adaptálhatóság és a kedvező élettani hatások együttese miatt.
Magnetic field tuning of the valley population in the Weyl phase of Nd$_2$Ir$_2$O$_7$
Creators: name: Kapon, Itzik
name: Rischau, Carl Willem
name: Michon, Bastien
name: Wang, Kai
name: Xu, Bing
name: Yang, Qiu
name: Nakatsuji, Satoru
name: van der Marel, Dirk
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The frustrated magnet Nd$_2$Ir$_2$O$_7$, where strong correlations together with spin-orbit coupling play a crucial role, is predicted to be a Weyl semimetal and to host topological pairs of bulk Dirac-like valleys. Here we use an external magnetic field to manipulate the localized rare earth 4f moments coupled to the 5d electronic bands. Low energy optical spectroscopy reveals that a field of only a few teslas suffices to create charge compensating pockets of holes and electrons in different regions of momentum space, thus introducing a valley population shift that can be tuned with the field.
description: 8 pages, 6 figures
PLOOPS 2012 cruise,Thalia R/V
Creators: name: CUGIER Philippe
Publisher: name: Sismer
Year: 2012

description: Observation in-situ (vidéo) de l'activité de filtration des Haploops (crustacé amphipode tubicole) en baie de Concarneau en lien avec les fluctuations des paramètres environnementaux (courant, turbidité, chlorophylle, lumière). Le projet de rattachement est l'action HAPLOOPS du projet Ifremer « Habitats benthiques estuariens et littoraux ».
PLUME cruise,Côtes De La Manche R/V
Creators: name: LAZURE Pascal
Publisher: name: Sismer
Year: 2016

description: Cette campagne est complémentaire de prélèvements d'opportunité réalisés lors de campagnes déjà programmées notamment les campagnes halieutiques d'évaluation des stocks comme PELGAS. Elle doit préciser les processus de mélange des masses d'eaux en zones côtières. Deux campagnes dédiées sont prévues pour affiner la connaissance de processus dans ces zones clefs. En amont de ces campagnes, un effort particulier est porté sur la connaissance des termes-sources en tritium issus de la Loire et de la Gironde. Des mesures quotidiennes seront réalisées aux embouchures au moins six mois avant les campagnes pour caractériser précisément les flux de tritium à l'origine des marquages et rendre possible les comparaisons entre les quantités de radionucléides mesurées et simulées à l'échelle du golfe. Les objectifs spécifiques de ces campagnes sont de : Décrire la distribution du tritium et sa variabilité dans le golfe de Gascogne ; Préciser les aires de dispersion des panaches (Loire, Gironde) et les caractéristiques de la dilution horizontale et verticale depuis les embouchures ; Estimer des temps de résidences (ou de renouvellement) des eaux douces sur le plateau du golfe de Gascogne à l'aide de bilans quantitatifs précis ; Confirmer et affiner l'image des panaches fluviaux pour mettre en évidence les processus et zones de mélange entre les panaches et évaluer les contributions respectives des apports sur les zones adjacentes des grands estuaires (baie de Bourgneuf, baie de Vilaine, pertuis Charentais) ; Utiliser les chronologies précises et différenciées de rejets de la Loire et de la Gironde (un facteur 3) pour estimer les aires d'influence de ces deux grands panaches et valider les processus de dispersion représentés par les modèles (notamment le long de la côte vendéenne). Les campagnes déjà programmées en 2016 concernent la totalité du Golfe de Gascogne. La campagne TRIGASC se focalisera sur la description des panaches fluviaux à plus petite échelle et leur interaction entre la Loire et la Gironde.
Light-field control of real and virtual charge carriers
Creators: name: Boolakee, Tobias
name: Heide, Christian
name: Garzón-Ramírez, Antonio
name: Weber, Heiko B.
name: Franco, Ignacio
name: Hommelhoff, Peter
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Light-driven electronic excitation is a cornerstone for energy and information transfer. In the interaction of intense and ultrafast light fields with solids, electrons may be excited irreversibly, or transiently during illumination only. As the transient electron population cannot be observed after the light pulse is gone it is referred to as virtual, while the population remaining excited is called real. Virtual charge carriers have recently been associated with high-harmonic generation and transient absorption, while photocurrent generation may stem from real as well as virtual charge carriers. Yet, a link between the carrier types in their generation and importance for observables up to technological relevance is missing. Here we show that real and virtual carriers can be excited and disentangled in the optical generation of currents in a gold-graphene-gold heterostructure using few-cycle laser pulses. Depending on the waveform used for photoexcitation, real carriers receive net momentum and propagate to the gold electrodes, while virtual carriers generate a polarization response read out at the gold-graphene interfaces. Based on these insights, we further demonstrate a proof of concept of a logic gate for future lightwave electronics. Our results offer a direct means to monitor and excite real and virtual charge carriers. Individual control over each type will dramatically increase the integrated circuit design space and bring closer to reality petahertz signal processing.
PLUMAND cruise,Antea R/V
Creators: name: LEFEVRE Nathalie
Publisher: name: Sismer
Year: 2007

description: L'objectif de la mission était l'étude des échanges de CO2 à l'interface air-mer et l'impact de la propagation des eaux amazoniennes dans le contre courant équatorial nord (NECC) sur la concentration de CO2 en surface et sur la productivité de la zone. La campagne s'est déroulée le long d'une radiale est-ouest à 7o30'N dans la zone du NECC, zone généralement caractérisée par des sous-saturations en CO2. La campagne a eu lieu en octobre au moment où le courant Nord Brésil subit une rétroflexion et entraîne les eaux amazoniennes vers l'est.
ResearchBox 241, 'A dark side of hope', https://researchbox.org/241
Creators: name: Siria Xiyueyao Luo
name: marcel Zeelenberg
name: Femke van Horen
name: Kobe Millet
Publisher: name: Zenodo
Year: 2025

description: Box title: 'A dark side of hope'   Reference: Luo SX, Van Horen F, Millet K, Zeelenberg M. (2022) 'A dark side of hope: Understanding why investors cling onto losing stocks'. Journal of Behavioral Decision Making. . doi: https://doi.org/10.1002/bdm.2304Note: this backup was created automatically by a ResearchBox bot
Equilibrium and non-equilibrium molecular dynamics approaches for the linear viscoelasticity of polymer melts
Creators: name: Adeyemi, Oluseye
name: Zhu, Shiping
name: Xi, Li
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Viscoelastic properties of polymer melts are particularly challenging to compute due to the intrinsic stress fluctuations in molecular dynamics (MD). We compared equilibrium and non-equilibrium MD approaches for extracting the storage (G') and loss moduli (G") over a wide frequency range from a bead-spring chain model, in both unentangled and entangled regimes. We found that, with properly chosen data processing and noise reduction procedures, different methods render quantitatively equivalent results. In equilibrium MD (EMD), applying the Green-Kubo relation with a multi-tau correlator method for noise filtering generates smooth stress relaxation modulus profiles, from which accurate G' and G" can be obtained. For unentangled chains, combining the Rouse model with a short-time correction provides a convenient option that circumvents the stress fluctuation challenge altogether. For non-equilibrium MD (NEMD), we found that combining a stress pre-averaging treatment with discrete Fourier transform analysis reliably computes G' and G" with much shorter simulation length than previously reported. Comparing the efficiency and statistical accuracy of these methods, we concluded that EMD is both reliable and efficient, and is suitable when the whole spectrum of linear viscoelastic properties is desired, whereas NEMD offers flexibility when only some frequency ranges are of interest.
description: Accepted Manuscript
Counterpropagating topological and quantum Hall edge channels
Creators: name: Shamim, Saquib
name: Shekhar, Pragya
name: Beugeling, Wouter
name: Böttcher, Jan
name: Budewitz, Andreas
name: Mayer, Julian-Benedikt
name: Lunczer, Lukas
name: Hankiewicz, Ewelina M.
name: Buhmann, Hartmut
name: Molenkamp, Laurens W.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The survival of the quantum spin Hall edge channels in presence of an external magnetic field has been a subject of experimental and theoretical research. The inversion of Landau levels that accommodates the quantum spin Hall effect is destroyed at a critical magnetic field, and a trivial insulating gap appears in the spectrum for stronger fields. In this work, we report the absence of this transport gap in disordered two dimensional topological insulators in perpendicular magnetic fields of up to 16 T. Instead, we observe that a topological edge channel (from band inversion) coexists with a counterpropagating quantum Hall edge channel for magnetic fields at which the transition to the insulating regime is expected. For larger fields, we observe only the quantum Hall edge channel with transverse resistance close to $h/e^2$. By tuning the disorder using different fabrication processes, we find evidence that this unexpected $ν=1$ plateau originates from extended quantum Hall edge channels along a continuous network of charge puddles at the edges of the device.
description: 8+3 pages, 5+2 figures
Noisy induced entanglement transition in one-dimensional random quantum circuits
Creators: name: Zhang, Qi
name: Zhang, Guang-Ming
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Random quantum circuit is a minimally structured model to study the entanglement dynamics of many-body quantum systems. In this paper, we considered a one-dimensional quantum circuit with noisy Haar-random unitary gates using density matrix operator and tensor contraction methods. It is shown that the entanglement evolution of the random quantum circuits is properly characterized by the logarithmic entanglement negativity. By performing exact numerical calculations, we found that, as the physical error rate is decreased below a critical value $p_c\approx 0.056$, the logarithmic entanglement negativity changes from the area law to the volume law, giving rise to an entanglement transition. The critical exponent of the correlation length can be determined from the finite-size scaling analysis, revealing the universal dynamic property of the noisy intermediate-scale quantum devices.
description: 6 pages, 4 figures, a few typos are removed
PLUME Vietnam cruise,Antea R/V
Creators: name: Marc, TEDETTI
name: Vinh, VU DUY
name: Sylvain, OUILLON
Publisher: name: Sismer
Year: 2024

description: Le but général de la campagne océanographique PLUME (27 mai-10 juillet 2024) est de mieux comprendre et quantifier les transports d'eau, de particules, de matières naturelles et anthropiques, leur répartition le long du continuum fleuve-estuaire-océan, et leur impact sur la zone côtière vietnamienne, principalement le delta du fleuve Rouge, le delta du Mékong et l'estuaire du fleuve Saigon-Dong Nai, pendant la saison des pluies.Les objectifs de PLUME sont les suivants : Évaluer la variabilité des processus hydro-sédimentaires estuariens, la dynamique des matières en suspension/agrégats dans les estuaires et les panaches, à travers la détermination du gradient de salinité, de l'épaisseur du panache, des caractéristiques des particules, du mélange turbulent, de la remise en suspension des sédiments et des processus néphéloïdes de fond. Étudier le transport, la dispersion et l'évolution des caractéristiques des masses d'eau depuis l'embouchure du fleuve jusqu'à la mer, et cartographier la répartition des principaux panaches fluviaux du Vietnam. Déterminer les concentrations, la distribution spatiale/verticale, les sources potentielles, les processus de transformation et le devenir, et/ou les flux de diverses matières dissoutes/particulaires, naturelles/anthropiques le long du gradient de salinité des rivières jusqu'à l'océan ouvert via leurs panaches de dilution. Nous nous concentrons sur les nutriments, les gaz à effet de serre, le carbone organique, la matière organique dissoute chromophorique et fluorescente, le black carbon, les métaux traces, les contaminants organiques anciens et émergents, et les microplastiques. Déterminer l'abondance/biomasse, l'activité/productivité et la diversité/structure communautaire des organismes planctoniques, principalement bactério- et phytoplancton, le long du gradient de salinité des rivières jusqu'au large en relation avec le contenu chimique des eaux associées. Nous nous concentrons principalement sur : 1) la répartition du phytoplancton et le développement potentiel de proliférations d'algues nuisibles en relation avec la qualité et l'état d'eutrophisation des eaux, 2) la fixation biologique de N2 et la répartition des diazotrophes, et 3) la répartition, la diversité et l'écologie. de pathobiome et de résistome dans des principaux panaches fluviaux du Vietnam, en lien avec la qualité de l'eau.
ResearchBox 260, 'Episodic simulation and commonplace harms', https://researchbox.org/260
Creators: name: Brendan Gaesser
name: Adam Morris
name: Fiery Cushman
Publisher: name: Zenodo
Year: 2025

description: Box title: 'Episodic simulation and commonplace harms'   Reference: Adam Morris, Brendan Gaesser, Fiery Cushman, 'The role of episodic simulation in motivating commonplace harms', CognitionNote: this backup was created automatically by a ResearchBox bot
Chiral-phonon-induced current in helical crystals
Creators: name: Yao, Dapeng
name: Murakami, Shuichi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this study, we theoretically show that in a helical crystal, a current is induced by chiral phonons representing the microscopic local rotation of atoms. By treating the rotational motion as a perturbation, we calculate the time-dependent current by using the adiabatic Berry phase method. The time average of the current along the helical axis becomes finite in the metallic phase but it vanishes in the insulating phase. On the other hand, the current in the hexagonal plane changes with time, but its time average vanishes due to the threefold rotation space-time symmetry. We show that the time evolutions of the current follow the space-time symmetries of the helical systems. Moreover, we explain the reason for the vanishing of the time average of the current in the insulating phase from the aspect of the Chern number in the parameter space.
description: 12 pages, 8 figures
Spectroscopic and Electric Properties of the TaO$^+$ Molecule Ion for the Search of New Physics: A Platform for Identification and State Control
Creators: name: Sunaga, Ayaki
name: Fleig, Timo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The TaO$^+$ cation is an attractive molecular species to search for parity- and time-reversal-violating interactions, in particular of hadronic origin. For the spectroscopic detection and preparation of TaO$^+$ cation in a desired state detailed knowledge of spectroscopic and electric properties in excited states is essential information. In this work we present spectroscopy constants for TaO$^+$ in the electronic ground and 29 excited states calculated with relativistic configuration interaction theory. The equilibrium bond lengths ($R_\mathrm{e}$), harmonic vibrational frequencies ($ω_\mathrm{e}$), transition dipole moments (TDM), vertical excitation energies and static molecular dipole moments (PDM) are summarized. We include a detailed characterization of all electronic states in terms of their spinor occupations. This work supports the realization of experiments using TaO$^+$ ions to search for new physics beyond the standard model of elementary particles.
PLUMEFLOC cruise,Pelagia R/V
Creators: name: DIAZ Mélanie
name: DE STIGTER Henko
Publisher: name: Sismer
Year: 2023

description: Les processus de floculation jouent un rôle important dans l'accélération de la décantation et de la redéposition des sédiments à grains fins mis en suspension par des processus naturels ou par des activités humaines. La compréhension des facteurs contrôlant le processus de floculation et la capacité à prédire comment la floculation affectera la décantation des sédiments en suspension sont d'une importance capitale pour évaluer la dispersion et l'impact des panaches de sédiments artificiels générés par les opérations de dragage en mer et d'exploitation minière en eaux profondes. Dans le cadre de PLUMEFLOC, un projet collaboratif de l'Université technique de Delft et de NIOZ auquel participent également des partenaires de l'industrie offshore, les processus de floculation sont étudiés à la micro-échelle des interactions physiques entre les particules sédimentaires, à l'échelle intermédiaire lors d'expériences en laboratoire avec des suspensions de sédiments floculés, et à la macro-échelle en surveillant en mer les panaches de sédiments floculés, naturels et artificiels. L'expédition RV Pelagia dans le canyon de Capbreton a pour but de mener des observations et des expériences sur les processus de floculation dans un environnement naturel, afin de mieux comprendre les processus impliqués et les capacités instrumentales pour la surveillance in-situ des panaches de sédiments en suspension floculés. Le travail sera mené en collaboration avec les partenaires du projet de TU Delft et des chercheurs français dans le domaine de l'océanographie et du transport des sédiments.
Branchlines. Volume 21, number 2
Creators: name: Watts, Susan B.
name: University Of British Columbia. Faculty Of Forestry
Publisher: name: Produced in-house at the Faculty of Forestry by Susan B. Watts, Editor and Jamie Myers, Designer.
Year: 2011

description: Dean's message (John L. Innes): future directions for the Faculty of Forestry. Commonwealth Forestry Congress. The Asia Pacific Forestry Net. Commonwealth Forestry Association. The Faculty of Forestry at IUFRO 2010. Workshop on traditional forest knowledge. Forestry Advisory Council welcomes two new members. Capacity building with India’s Forest Service. Forestry students to help protect the Sumatran elephant and tiger populations. Science meets entertainment. New course-based programs. Haida Gwaii Semester breaking new ground in forestry education. Climate change adaptation, facilitating action on the ground. Forests are about people! The Meldrum Creek Fire: observations from the Alex Fraser Research Forest. HIV / AIDS and forest resources in Malawi. Understanding the effects of climate change on freshwater ecosystems. The International Energy Agency’s Bioenergy Task 39 and its role in forestry. IUFRO Scientific Achievement award winners Yousry El-Kassaby and Shawn Mansfield. Alumni news. Award profile.
ResearchBox 275, 'Choosing the Light Meal', https://researchbox.org/275
Creators: name: Andras Molnar
name: Eric VanEpps
Publisher: name: Zenodo
Year: 2025

description: Box title: 'Choosing the Light Meal'   Reference: VanEpps EM, Molnar A, Downs JS, Loewenstein G. (2021) 'Choosing the Light Meal: Real-Time Aggregation of Calorie Information Reduces Meal Calories'. Journal of Marketing Research. V58(5):948-967. doi: 10.1177/00222437211022367Note: this backup was created automatically by a ResearchBox bot
PLURICHTYO cruise,La Curieuse R/V
Creators: name: KOUBBI Philippe
Publisher: name: Sismer
Year: 2001

description: Le nouveau programme propose de faire une étude intégrée sur la position des poissons dans l'écosystème côtier subantarctique en développant 3 thèmes. - l'influence des conditions océanographiques en milieu côtier (hydrologie et planctologie) sur la distribution des larves de poissons et des proies pélagiques de celles-ci et des adultes (amphipodes, copépodes, ...) ; - l'appréciation des habitats des poissons dans les fjords du Nord de Kerguelen et dans le Golfe des baleiniers en fonction de la bathymétrie, de la distance à la cote et des champs d'algues ; - l'étude cytogénétique des poissons sub-antarctiques et systématique et phylogénie moléculaire, génétique des populations.
PNOC - GNB 93/1 cruise,Thalia R/V
Creators: name: MONBET Yves
Publisher: name: Sismer
Year: 1993

description: Etude des échanges à l'interface eau-sédiment et du couplage pelagos-benthos. Recherches sur la contribution des systèmes côtiers au cycle du carbone et des éléments associés (en particulier l'azote) et étude du devenir des apports anthropiques en mer. On cherche notamment à savoir si la consommation et le piégeage sur place de la matière organique prédominent ou si l'exportation est significative.
title: Social Sensitivity in Adolescents and Adults with Learning Disabilities
Creators: name: Jarvis, Patricia Anne
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1983

description: The purpose of the present study was to investigate social sensitivity and self-concept in students with learning disabilities and their non-disabled peers. Thirty students each from Junior and Senior public high schools and a community college in Tidewater, Virginia participated in the study with 15 learning disabled and 15 non-disabled students from each of the three grade levels (N-90). Students were individually assessed in 50 minute interviews for their accuracy in interpreting the thoughts and feelings of actors in tape-recorded stories depicting two adults in happy, angry, anxious, and sad interactions. A questionnaire measuring self-concept in learning situations as a function of motivation, task orientation, problem solving ability, and class membership was also administered. Data were analyzed using Multivariate Analyses of Variance. It was found that LD individuals at all grade levels were significantly less accurate at interpreting social situations than their non-disabled peers and had significantly lower self-concepts. These results support the need for remediation efforts in elementary and secondary high school for students with learning disabilities so as to overcome social deficits which appear to persist into college when interpersonal relationships become more important.
Direction of Parsec-Scales Jets for 9220 Active Galactic Nuclei
Creators: name: Plavin, A. V.
name: Kovalev, Y. Y.
name: Pushkarev, A. B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The direction of parsec-scale jets in active galactic nuclei (AGNs) is essential information for many astrophysical and astrometric studies, including linear polarization and magnetic field structure, frequency-dependent synchrotron opacity, proper motion, and reference frame alignment. We developed a rigorous, simple, and completely automated method to measure the directions from calibrated interferometric visibility data at frequencies ranging from 1.4 GHz to 86 GHz. We publish the results for 9220 AGNs with the typical accuracy below 10 degrees. An internal check of the method comparing the directions between different observing frequencies as well as with previous publications verifies the robustness of the measured values.
description: 11 pages, 10 figures, 2 tables; machine-readable tables available as ancillary files; accepted to ApJS
PNOC cruise,Thalia R/V
Creators: name: MONBET Yves
Publisher: name: Sismer
Year: 1995

description: Etude des échanges à l'interface eau-sédiment et du couplage pelagos-benthos. Quantification des transferts verticaux de matière organique. Etude de la contribution du système côtier au cycle du carbone et des éléments associés (en particulier l'azote). Le projet de rattachement est le Programme National d'Océanographie Côtière.
Response of mouse muscone receptor MOR215-1 to binary odor
Creators: name: Ben Khemis, Ismahene
name: Ben Lamine, Abdelmottaleb
Publisher: name: Digital Olfaction Society
Year: 2016

description: In this paper, an adsorption modeling has been presented to describe the interactions of a binary mixture of ℓ-muscone and d-muscone with the mouse muscone receptor MOR215-1. The formulation of the 2-dimensional monolayer models with identical and two types of sites for the perceived response of odor binary mixture are based on statistical physics and theoretical considerations, intended to the whole stimulus-response curve of pure binary odor compounds. Thanks to grand canonical ensemble physico-chemical parameters related to the adsorption process were introduced in the analytical model expressions. The results show a high modeling efficiency of the 2-dimensional monolayer models with two types of sites for binary mixture of ℓ-muscone and d-muscone. In this model, six physico-chemical parameters derived from the fitting of the experimental data by a numerical simulation were discussed.
 Furthermore, these statistical physics models include physico-chemical parameters specific to the respective effects of each compound in the binary mixture, which may help to clarify the inhibitory effects that are often sought in ℓ-muscone and d-muscone mixture through the determination of a new steric parameter.
description: Journal of Digital Olfaction Society, Vol 4, No 1 (2016): Journal of Digital Olfaction Volume 4
Tensorized Knot Invariants and the Yang-Mills Mass Gap
Creators: name: Francesco D'Agostino
Publisher: name: Zenodo
Year: 2025

description: This paper introduces a novel approach to the Yang-Mills mass gap problem through the development of tensorized knot invariants. A new topological invariant $\mathcal{I}(K)$ is constructed for gauge field configurations, establishing a complete classification of field configurations into discrete topological sectors. The tensor structure enforces vacuum stability through energy barriers between sectors, with transition probabilities exponentially suppressed for small coupling. This framework provides a rigorous mathematical foundation for understanding the mass gap through the relationship between knot topology and gauge field dynamics.
Study 1c: Correlates of Physical Health 3
Creators: name: Forestier, Joel Le
Publisher: name: OSF Registries
Year: 2020
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This study pulls on a large dataset previously collected by the College Transition Collaborative, from a social-belonging field intervention delivered to incoming students at 23 colleges and universities. In Study 1a, we analyzed data from within the control condition only, and did not look at any data from either of the intervention conditions, to test hypotheses about the correlates of students' physical health in the first year of university. Our aim was to refine our predictions for a future Study 2, which will analyze data from all conditions of the same dataset to explore intervention effects on physical health.

In Study 1a, we found the predicted effects that health was inversely related to threat, stress, and being from a disadvantaged group, and positively related to belonging and feeling able to cope with stress.

In Study 1b, we tested whether the effects from Study 1a were moderated by a number of demographic and psychological variables and found that they were not.

In the present Study 1c, we aim to test whether there are mean differences in the psychological and health outcomes from Study 1a between the demographic groups specified in Study 1b.

After conducting the analyses included in the present registration, we plan to upload a final registration specifying the interventional analyses we will conduct.

An important note is that other researchers including researchers on this team have already analyzed other data using this dataset. Additionally, the researchers on this team have conducted the analyses specified in the registration for the first study in this project using these data. The purpose of this registration is to be transparent about what we did and did not know about the data at the time that we decided to perform each analysis. Therefore, it should be known that the present analyses were decided on only after seeing results from Study 1a. No researchers on this team, and no other researchers that we know of, have performed the specific analyses proposed in this registration.
PNOC - GNB 93/2 cruise,Thalia R/V
Creators: name: MONBET Yves
Publisher: name: Sismer
Year: 1993

description: Etude des échanges à l'interface eau-sédiment et du couplage pelagos-benthos. Recherches sur la contribution des systèmes côtiers au cycle du carbone et des éléments associés (en particulier l'azote) et étude du devenir des apports anthropiques en mer. On cherche notamment à savoir si la consommation et le piégeage sur place de la matière organique prédominent ou si l'exportation est significative.