cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MPEC 2025-G44 : 2025 FF22
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 FF22

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Antenna Array Diagnosis for Millimeter-Wave MIMO Systems
Creators: name: Ma, Siqi
name: Shen, Wenqian
name: An, Jianping
name: Hanzo, Lajos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The densely packed antennas of millimeter-Wave (mmWave) MIMO systems are often blocked by the rain, snow, dust and even by fingers, which will change the channel's characteristics and degrades the system's performance. In order to solve this problem, we propose a cross-entropy inspired antenna array diagnosis detection (CE-AAD) technique by exploiting the correlations of adjacent antennas, when blockages occur at the transmitter. Then, we extend the proposed CE-AAD algorithm to the case, where blockages occur at transmitter and receiver simultaneously. Our simulation results show that the proposed CE-AAD algorithm outperforms its traditional counterparts.
An End-to-End Breast Tumour Classification Model Using Context-Based Patch Modelling- A BiLSTM Approach for Image Classification
Creators: name: Tripathi, Suvidha
name: Singh, Satish Kumar
name: Lee, Hwee Kuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Researchers working on computational analysis of Whole Slide Images (WSIs) in histopathology have primarily resorted to patch-based modelling due to large resolution of each WSI. The large resolution makes WSIs infeasible to be fed directly into the machine learning models due to computational constraints. However, due to patch-based analysis, most of the current methods fail to exploit the underlying spatial relationship among the patches. In our work, we have tried to integrate this relationship along with feature-based correlation among the extracted patches from the particular tumorous region. For the given task of classification, we have used BiLSTMs to model both forward and backward contextual relationship. RNN based models eliminate the limitation of sequence size by allowing the modelling of variable size images within a deep learning model. We have also incorporated the effect of spatial continuity by exploring different scanning techniques used to sample patches. To establish the efficiency of our approach, we trained and tested our model on two datasets, microscopy images and WSI tumour regions. After comparing with contemporary literature we achieved the better performance with accuracy of 90% for microscopy image dataset. For WSI tumour region dataset, we compared the classification results with deep learning networks such as ResNet, DenseNet, and InceptionV3 using maximum voting technique. We achieved the highest performance accuracy of 84%. We found out that BiLSTMs with CNN features have performed much better in modelling patches into an end-to-end Image classification network. Additionally, the variable dimensions of WSI tumour regions were used for classification without the need for resizing. This suggests that our method is independent of tumour image size and can process large dimensional images without losing the resolution details.
description: 36 pages, 5 figures, 9 tables. Published in Computerized Medical Imaging and Graphics
ThrombUS+ D3.1: Ultrasound transducer array prototypes based on bulk technology (2 prototypes)
Creators: name: Legros, Mathieu
name: Pousset, Nicolas
name: Toffessi-Siewe, Sean
name: Boulay, Simon
name: Voisin, David
name: Raybaud, Guillaume
Publisher: name: Zenodo
Year: 2025

description: The wearable ultrasound component of the ThrombUS+ solution is a critical part of the project and also critical in terms of the innovation needed to achieve a compact ultrasound probe. The consortium develops two different solutions, two designs based on bulk technology (by VERMON) and one design based on MEMS technology (by Fraunhofer).

Task T3.1 aims to design, test and produce transducer prototypes (based on PZT composite technology) of 2 designs. The ultrasound prototypes will allow to acquire ultrasound images in longitudinal or/and transverse views of veins and arteries of the lower limb:

- Standard Linear Array (LA) with 128 elements

- Row-Column Array (RCA) with a total of 128 elements

VERMON uses its tools and know-how in manufacturing and assembly of the acoustic stack (processing of the piezoelectric material, metallization, repolarization, bonding) and the complete transducer (assembly of electronic interconnection elements, encapsulation in the acoustic lens). The transducer prototypes are fully characterized regarding electroacoustic and impedance properties with facilities based especially on test benches equipped with hydrophone, water tanks. This task is led by the technical partner VERMON who develops the new transducers.

The output of Task T3.1 (i.e. deliverable D3.1) is the production of 2x RCA and 2x Linear Array prototypes for further testing and integration into the wearable. This document supports the prototypes by detailing the specifications of the prototypes.
Interrogating probabilistic inversion results for subsurface structural information
Creators: name: Zhang, Xin
name: Curtis, Andrew
Publisher: name: arXiv
Year: 2021
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The goal of a scientific investigation is to find answers to specific questions. In geosciences this is typically achieved by solving an inference or inverse problem and interpreting the solution. However, the answer obtained is often biased because the solution to an inverse problem is nonunique and human interpretation is a biased process. Interrogation theory provides a systematic way to find optimal answers by considering their full uncertainty estimates, and by designing an objective function that defines desirable qualities in the answer. In this study we demonstrate interrogation theory by quantifying the size of a particular subsurface structure. The results show that interrogation theory provides an accurate estimate of the true answer, which cannot be obtained by direct, subjective interpretation of the solution mean and standard deviation. This demonstrates the value of interrogation theory. It also shows that fully nonlinear uncertainty assessments may be critical in order to address real-world scientific problems, which goes some way towards justifying their computational expense.
Sympathetic Filament Eruptions within a Fan-spine Magnetic System
Creators: name: Zhou, Chengrui
name: Shen, Yuandeng
name: Zhou, Xinping
name: Tang, Zehao
name: Duan, Yadan
name: Tan, Song
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It is unclear whether successive filament eruptions at different sites within a short time interval are physically connected or not. Here, we present the observations of the successive eruptions of a small and a large filament in a tripolar magnetic field region whose coronal magnetic field showed as a fan-spine magnetic system. By analyzing the multi-wavelength observations taken by the Solar Dynamic Observatory (SDO) and the extrapolated three-dimensional coronal magnetic field, we find that the two filaments resided respectively in the two lobes that make up the inner fan structure of the fan-spine magnetic system. In addition, a small fan-spine system was also revealed by the squashing factor Q map, which located in the east lobe of the fan structure of the large fan-spine system. The eruption of the small filament was a failed filament eruption, which did not cause any coronal mass ejection (CME) except for three flare ribbons and two post-flare-loop systems connecting the three magnetic polarities. The eruption of the large filament not only caused similar post-flare-loop systems and flare ribbons as observed in the small filament eruption, but also a large-scale CME. Based on our analysis results, we conclude that the two successive filament eruptions were physically connected, in which the topology change caused by the small filament eruption is thought to be the physical linkage. In addition, the eruption of the small fan-spine structure further accelerated the instability and violent eruption of the large filament.
description: 20 pages, 9 figures, accepted by the APJ
Towards a More Complex Understanding of Natal Super Star Clusters with Multiwavelength Observations
Creators: name: Costa, Allison H
name: Johnson, Kelsey E.
name: Indebetouw, Remy
name: Finn, Molly K.
name: Brogan, Crystal L.
name: Reines, Amy
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Henize 2-10 (He 2-10) is a nearby (D = 9 Mpc) starbursting blue compact dwarf galaxy that boasts a high star formation rate and a low luminosity AGN. He 2-10 is also one of the first galaxies in which embedded superstar clusters (SSCs) were discovered. SSCs are massive, compact star clusters that will impact their host galaxies dramatically when their massive stars evolve. Here, we discuss radio, submillimeter, and infrared observations of He 2-10 from 1.87 microns to 6 cm in high angular resolution (~0.3 arcsec), which allows us to disentangle individual clusters from aggregate complexes as identified at lower resolution. These results indicate the importance of spatial resolution to characterize SSCs, as low resolution studies of SSCs average over aggregate complexes that may host SSCs at different stages of evolution. We explore the thermal, non-thermal, and dust emission associated with the clusters along with dense molecular tracers to construct a holistic review of the natal SSCs that have yet to dramatically disrupt their parent molecular clouds. We assess the production rate of ionizing photons, extinction, total mass, and the star formation efficiency associated with the clusters. Notably, we find that the star formation efficiency for the some of the natal clusters is high (>70%), which suggests that these clusters could remain bound even after the gas is dispersed from the system from stellar feedback mechanisms. If they remain bound, these SSCs could survive to become objects indistinguishable from globular clusters.
description: 24 pages
Mean Field and the Single Homopolymer
Creators: name: Pasquali, S.
name: Percus, J. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We develop a statistical model for a confined chain molecule based on a monomer grand canonical ensemble. The molecule is subject to an external chemical potential, a backbone interaction, and an attractive interaction between all monomers. Using a Gaussian variable formalism and a mean field approximation, we analytically derive a minimum principle from which we can obtain relevant physical quantities, such as the monomer density, and we explore the limit in which the chain is subject to a tight confinement. Through a numerical implementation of the minimization process we show how we can obtain density profiles in three dimensions for arbitraty potentials, and we test the limits of validity of the theory.
description: 15 pages, 7 figures
title: Sprachliche Bildung in Alltagsgesprächen verstehen und unterstützen – empirische Überprüfung einer Weiterbildung für Kindergartenlehrpersonen
Creators: name: Hefti, Claudia
name: Isler, Dieter
name: Sticca, Fabio
Publisher: name: Publikationsserver der Pädagogischen Hochschule Thurgau
Year: 2023
Subjects: alltagsintegrierte Sprachbildung
mündliche Textfähigkeiten
erwerbsunterstützendes Lehrpersonenhandeln
wirksame Lehrpersonenweiterbildung
Kindergarten

description: Die Fähigkeit, mündliche Texte (Berichte, Erzählungen, Erklärungen oder Argumentationen) zu verstehen und zu produzieren, ist für die Nutzung schulischer Bildungsan- gebote grundlegend. Im Kindergarten können alle Kinder frühzeitig mit mündlichen Texten ver- traut werden. Dabei spielt die Erwerbsunterstützung durch die Lehrpersonen eine Schlüsselrolle. In der Interventionsstudie «EmTiK» wird untersucht, wie sich die mündlichen Textfähigkeiten der Kinder im Verlauf des Kindergartens entwickeln, ob sich die Erwerbsunterstützung der Lehr- personen durch eine Weiterbildung optimieren lässt und wie sie sich auf den Erwerbsverlauf der Kinder auswirkt. In diesem Beitrag werden die Anlage, die Durchführung und die Evaluation der EmTiK-Weiterbildung vorgestellt. Zudem werden Befunde zur Wirkung der Weiterbildung auf das erwerbsunterstützende Handeln berichtet. Der Beitrag schliesst mit möglichen Frage- stellungen für die Erforschung von alltagsintegrierter Sprachbildung im gesamten Zyklus 1 und somit auch in der ersten und zweiten Klasse.
description: The ability to understand and produce oral texts (reports, narratives, explanations, or arguments) is fundamental to the benefits of educational opportunities at school. In kindergarten, all children can become familiar with oral texts at an early age. Their teachers’ scaffolding plays a key role in this process. The EmTiK intervention study investigates how children’s oral textrelated skills develop over the course of kindergarten, whether the teachers’ scaffolding can be optimized through professional development, and how improved scaffolding affects children’s acquisition trajectories. This paper presents the design, the implementation, and the evaluation of the EmTiK professional-development programme. In addition, findings on the impact of the programme on the participating teachers’ scaffolding practices are reported. The article concludes with possible questions for further research on everyday language education in the whole first cycle, which includes two years of kindergarten and first and second grade.
description: Beiträge zur Lehrerinnen- und Lehrerbildung: Zeitschrift zu Theorie und Praxis der Aus- und Weiterbildung von Lehrerinnen und Lehrern, vol. 41, no. 2, p. 269
Black Holes and Black String-like Solutions in Codimension-2 Braneworlds
Creators: name: Papantonopoulos, Eleftherios
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss black hole solutions with a Gauss-Bonnet term in the bulk and an induced gravity term on a thin brane of codimension-2. We show that these black holes can be localized on the brane, and they can be extended further into the bulk by a warp function. These solutions have regular horizons and no other curvature singularities appear apart from the string-like ones. The projection of the Gauss-Bonnet term on the brane imposes a constraint relation which dictates the form of matter on the brane and in the bulk.
description: 9 pages, no figures, plenary talk given at the 7th Friedmann International Seminar on Gravitation and Cosmology, 29 June-5 July 2008, Joao Pessoa, Brazil, to appear in the proceedings
Herleitung von Skalarprodukten aus Symmetrieprinzipien
Creators: name: Soergel, Wolfgang
Publisher: name: arXiv
Year: 2008
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics
subject: 51-01

description: This is an attempt to model ambient space as a three-dimensional real affine space with a distinguished group of automorphisms containing the translations and acting freely and transitively on pairs consisting of a half-plane together with a half-line on its boundary. From there the existence of an invariant scalar product is deduced, which then also implies Pythagoras theorem in a quite precise form. This is in contrast to the usual procedure to model ambient space by asking for a distinguished scalar product and using Pythagoras theorem as known from high school to connect with reality.
Relaxation of saturated random sequential adsorption packings of discorectangles aligned on a line
Creators: name: Lebovka, Nikolai I.
name: Tatochenko, Mykhailo O.
name: Vygornitskii, Nikolai V.
name: Tarasevich, Yuri Yu.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Relaxation of the packing of elongated particles (discorectangles) aligned on a line was studied numerically. The aspect ratio (length-to-width ratio) for the discorectangles was varied within the range $\varepsilon \in [1;50]$. The initial jamming (saturated) state was produced using the basic variant of the random sequential adsorption (RSA) model with random positions and orientations of particles. The relaxation was performed by allowing rotational and translational diffusion motions of the particles wile their centers remained located on the line. The effects of the aspect ratio $\varepsilon$ on the kinetics of relaxation, the orientation order parameter and the distribution function of the distances between nearest-neighbor discorectangles were analyzed. The transport properties of the resulting 1D systems were also analyzed by using the diffusion of a tracer particle (random walker) between the nearest-neighbor discorectangles. In the relaxed states the anomalous diffusion was observed having a hopping exponent $d_w>2$ dependent upon $\varepsilon$.
description: 7 pages, 8 figures, 35 references (refs were corrected in v.2)
Selecting the Right Power Semiconductor for Multi-MHz Power Converters-Slides
Creators: Juan Rivas
Publisher: name: IEEE
Year: 2020

PELS Webinar Slides
Abstract: With the commercialization of wide-bandgap power semiconductors, multi-MHz switching frequencies are more compelling and critical to meet new applications demanding leaps in power density and efficiency. In the past, studies of these converters reported significant gaps between measured and modeled performance, often attributed to dynamic RDS, ON in GaN HEMTs. In particular, the power semiconductors – which often drive thermal constraints – dissipated much more power than expected, rendering designs based on simulated values unusable. In soft-switched converters, which dominate at MHz frequencies, the semiconductor’s output capacitor is resonantly charged and discharged once per switching cycle. Recently, multiple papers have found significant losses from this process in silicon and wide-bandgap devices, explaining the unexpected power dissipation. With these losses known, the MHz-frequency design space can be reopened – if designers are careful about semiconductor selection. In this webinar, we will give the audience the tools to select the right device across material (GaN, SiC, or Si), device technology (super junction or trench), size (lower RDS, ON is not always better), and, in some cases, manufacturer. Further, we showcase how this selection drives thermal design, input voltage selection, and novel circuit topologies in a variety of high-performance demonstrations from 6.78 MHz all the way to 40.68 MHz.
MatLab code for T-Tubule Analysis of Whole Right Atrium Tissue Stack Images
Creators: name: Glukhov, Alexey
Publisher: name: figshare
Year: 2021
Subjects: subject: 60601 Animal Physiology - Biophysics
subject: FOS: Biological sciences
subject: 60602 Animal Physiology - Cell
subject: Cell Biology
subject: Cardiology

description: MatLab code for the analysis of T-tubule organization in whole right atrium tissue stack images
The rhythmic sounds of nature: an ecological exploration of how the living environment inspires creative composition in music
Creators: name: Zanganeh, Arash
Publisher: name: University of Southern Queensland
Year: 2024
Subjects: Natural sounds, Aesthetics of music
Sufism
Music composition
World-fusion music
Nature
Musicology
Ethnomusicology
Ecomusicology
Philosophy of music
Aesthetics of music

description: This study investigates the relationship between nature and music, focusing on how the natural world influences the composition process. The research fills a gap in previous studies by exploring the relationship between composers and nature, seeking to elucidate the mechanisms through which natural elements inform musical creation. The primary objective is to provide composers with a new approach to infuse their compositions with natural themes, fostering a deeper connection between creators and audiences with the environment. The study poses the question of how composers translate their vision of nature into musical works, aiming to uncover the underlying processes and tools employed in this endeavour. To achieve this, the research employs a multidisciplinary approach, drawing a triangle from musicology, ethnomusicology, and ecomusicology. A philosophical framework rooted in Sufism cultivates alignment within the interdependent realms of this triangle. The study also uses qualitative ethnographic methods, with the researcher actively participating in the process to capture its nuances effectively. This includes participant observation, interviews with key stakeholders, such as composers and nature experts, and the collection of natural sounds and visuals from Springbrook National Park, Queensland. The study's findings highlight the transformative potential of incorporating natural rhythms into music composition, as demonstrated by creating a musical calendar infused with recorded natural sounds. The research underscores the enhancement of the depth and resonance of compositions that such integration creates, resulting in intricate harmonies and counterpoints in world-fusion music. Ultimately, this study not only sheds light on the historical practices of composers but also offers practical insights for world-fusion music making, emphasising the profound impact of nature on artistic expression.
Spectral Modeling of Flares in Long Term Gamma-Ray Light Curve of PKS 0903-57
Creators: name: Mondal, Sandeep Kumar
name: Prince, Raj
name: Gupta, Nayantara
name: Das, Avik Kumar
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A detailed study of the BL Lacertae PKS 0903-57 has been done for the first time with 12 years of Fermi Large Area Telescope data. We have identified two bright gamma-ray flares in 2018 and 2020. Many sub-structures were observed during multiple time binning of these flares. We have performed detailed temporal and spectral study on all the sub-structures separately. A single-zone emission model is used for time-dependent leptonic modeling of the multi-wavelength spectral energy distributions. Our estimated values of variability time scale, magnetic field in the emission region, jet power obtained from leptonic modeling of PKS 0903-57 are presented in this work. Currently, we have a minimal number of observations in X-rays and other bands. Hence, more simultaneous multi-wavelength monitoring of this source is required to have a better understanding of the physical processes happening in the jet of the blazar PKS 0903-57.
description: 29 pages, 22 figures, 14 tables, Accepted for Publication in ApJ
Bidirectional Distillation for Top-K Recommender System
Creators: name: Kweon, Wonbin
name: Kang, SeongKu
name: Yu, Hwanjo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Recommender systems (RS) have started to employ knowledge distillation, which is a model compression technique training a compact model (student) with the knowledge transferred from a cumbersome model (teacher). The state-of-the-art methods rely on unidirectional distillation transferring the knowledge only from the teacher to the student, with an underlying assumption that the teacher is always superior to the student. However, we demonstrate that the student performs better than the teacher on a significant proportion of the test set, especially for RS. Based on this observation, we propose Bidirectional Distillation (BD) framework whereby both the teacher and the student collaboratively improve with each other. Specifically, each model is trained with the distillation loss that makes to follow the other's prediction along with its original loss function. For effective bidirectional distillation, we propose rank discrepancy-aware sampling scheme to distill only the informative knowledge that can fully enhance each other. The proposed scheme is designed to effectively cope with a large performance gap between the teacher and the student. Trained in the bidirectional way, it turns out that both the teacher and the student are significantly improved compared to when being trained separately. Our extensive experiments on real-world datasets show that our proposed framework consistently outperforms the state-of-the-art competitors. We also provide analyses for an in-depth understanding of BD and ablation studies to verify the effectiveness of each proposed component.
description: WWW 2021
POI Alias Discovery in Delivery Addresses using User Locations
Creators: name: He, Tianfu
name: Chen, Guochun
name: Meng, Chuishi
name: He, Huajun
name: Pan, Zheyi
name: Li, Yexin
name: Ruan, Sijie
name: Ren, Huimin
name: Yuan, Ye
name: Li, Ruiyuan
name: Zhang, Junbo
name: Bao, Jie
name: He, Hui
name: Zheng, Yu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: Databases (cs.DB)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: People often refer to a place of interest (POI) by an alias. In e-commerce scenarios, the POI alias problem affects the quality of the delivery address of online orders, bringing substantial challenges to intelligent logistics systems and market decision-making. Labeling the aliases of POIs involves heavy human labor, which is inefficient and expensive. Inspired by the observation that the users' GPS locations are highly related to their delivery address, we propose a ubiquitous alias discovery framework. Firstly, for each POI name in delivery addresses, the location data of its associated users, namely Mobility Profile are extracted. Then, we identify the alias relationship by modeling the similarity of mobility profiles. Comprehensive experiments on the large-scale location data and delivery address data from JD logistics validate the effectiveness.
Obaid Zia Interview
Creators: name: Institute For Diversity & Civic Life
name: Department Of Religious Studies
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Religions Texas
9/11
Airports
Boston
Community
Diversity and inclusivity
First-generation Americans
Houston
Interfaith dialogue
Islam
Klein
Medical professionals
Millennials
Muslim ban
Muslim Students Association
Muslims
New York City
Othering
Pakistani-Americans
Profiling
Protesting
Racism
Religious education
Texas
Transportation Security Administration (TSA)
Travel

description: This interview is with Obaid Zia, a pharmacist living in New York City. Obaid compares the Muslim communities and diversity present in the different communities in which he has lived, including Houston, TX. He describes the profiling and prejudice he experienced after 9/11, especially when traveling. He discusses his personal experiences of religion and the role Islam plays in his life today. Obaid also shares his experiences of being active in his high school’s Muslim Students Association and of participating in protesting following the 2017 Muslim ban.
Thermodynamic signatures of short-range magnetic correlations in UTe$_2$
Creators: name: Willa, Kristin
name: Hardy, Frédéric
name: Aoki, Dai
name: Li, Dexin
name: Wiecki, Paul
name: Lapertot, Gérard
name: Meingast, Christoph
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The normal-state out of which unconventional superconductivity in UTe$_2$ emerges is studied in detail using a variety of thermodynamic and transport probes. Clear evidence for a broad Schottky-like anomaly with roughly R ln 2 entropy around $T^{*} \approx 12$K is observed in all measured quantities. Comparison with high magnetic field transport data allows the construction of an $H\text{-}T$ phase diagram resembling that of the ferromagnetic superconductor URhGe. The low field electronic Grüneisen parameter of $T^{*}$ and that of the metamagnetic transition at $H_m \approx 35$T are comparable pointing to a common origin of both phenomena. Enhanced Wilson and Korringa ratios suggests that the existence of short range ferromagnetic fluctuations cannot be ruled out.
Frequency analysis of OGLE-IV photometry for classical Cepheids in Galactic fields: non-radial modes and modulations
Creators: name: Rathour, R. S.
name: Smolec, R.
name: Netzel, H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We analyse photometry of $\sim$2000 Galactic Cepheids available in the OGLE Collection of Variable Stars. We analyse both Galactic disk and Galactic bulge fields; stars classified both as single- and multi-periodic. Our goal was to search for additional low-amplitude variability. We extend the sample of multi-mode radial pulsators by identifying ten new candidates for double-mode and six new candidates for triple-mode pulsation. In the first overtone OGLE sample, we found twelve Cepheids with additional periodicity having period ratio $P_{\rm x}/P_{\rm 1O}\in (0.60,\, 0.65)$. These periodicities do not correspond to any other radial mode. While such variables are abundant in the Magellanic Clouds, only one Cepheid of this class was known in the Galaxy before our analysis. Comparing our sample with the Magellanic Cloud Cepheids we note a systematic shift towards longer pulsation periods for more metal rich Galactic stars. Moreover in eleven stars we find one more type of additional variability, with characteristic frequencies close to half of that reported in the group with (0.60,\, 0.65) period ratios. Two out of the above inventory show simultaneous presence of both signals. Most likely, origin of these signals is connected to excitation of non-radial pulsation modes. We report three Cepheids with low-amplitude periodic modulation of pulsation: two stars are single-mode fundamental and first overtone Cepheids and one is a double-mode Cepheid pulsating simultaneously in fundamental and in first overtone modes. Only the former mode is modulated. It is a first detection of periodic modulation of pulsation in this type of double-mode Cepheids.
description: 16 pages, 14 figures, Accepted in MNRAS
Exact Analytical Parallel Vectors
Creators: name: Guo, Hanqi
name: Peterka, Tom
Publisher: name: arXiv
Year: 2021
Subjects: subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: This paper demonstrates that parallel vector curves are piecewise cubic rational curves in 3D piecewise linear vector fields. Parallel vector curves -- loci of points where two vector fields are parallel -- have been widely used to extract features including ridges, valleys, and vortex core lines in scientific data. We define the term \emph{generalized and underdetermined eigensystem} in the form of $\mathbf{A}\mathbf{x}+\mathbf{a}=λ(\mathbf{B}\mathbf{x}+\mathbf{b})$ in order to derive the piecewise rational representation of 3D parallel vector curves. We discuss how singularities of the rationals lead to different types of intersections with tetrahedral cells.
Changes in diversity of wetland birds across spatial scales following 20 years of wetland degradation: A case study from central Türkiye
Creators: name: Özgencil, İbrahim Kaan
name: Çolak, Mehmet Arda
name: Yılmaz, Gültekin
name: Uslu, Alaz
name: Hasnain, Sarah
name: Korkmaz, Mustafa
name: Amorim, Cihelio Alves
name: Soyluer, Melisa
name: Beklioğlu, Meryem
name: Meynard, Christine
name: Akyürek, Zuhal
name: Özkan, Korhan
name: Jeppesen, Erik
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Wetlands, despite their ecological value, have been extensively degraded worldwide. This study investigates the impact of two decades of wetland degradation, uncontrolled water use, and warming on the taxonomic and functional diversity of wetland bird communities in the Konya Closed Basin, Türkiye. Using data from two breeding bird atlases (1998 and 2018) and historical satellite imagery, we assessed changes in wetland breeding bird diversity across various spatial scales and wetlands’ seasonal shrinking patterns. We partitioned beta diversity into its turnover and nestedness components, and calculated individual contributions of extinctions and colonizations to the overall changes in beta diversity. We utilized mixed-effect models and Wilcoxon tests to assess the significance of diversity changes. Our findings revealed widespread diversity losses at the local scale. We also found that the communities became more dissimilar, primarily due to the local diversity losses. At the basin scale, functional diversity decline (66%) greatly exceeded taxonomic diversity decline (19%). Our satellite imagery analysis revealed an advancing wetland shrinking/drying over the study period. The diversity changes we found indicate that functional homogenization occurred at local and basin scales, and diversity losses at the local scale caused a subtractive heterogenization among the communities. We suggest that advancing wetland shrinking/drying dates due to climate change and human actions may be contributing to the decline of the late-breeding endangered diving ducks. Taken together, these findings suggest that a large-scale conservation plan, considering these seasonal and spatial changes is needed to protect the remaining wetland bird diversity in the basin.
Line Structure in the Spectrum of FU Orionis
Creators: name: Petrov, P. P.
name: Herbig, G. H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: New high-resolution spectra of FU Ori, obtained with the HIRES spectrograph at the Keck I telescope in 2003-2006, make it possible to compare the optical line profiles with those predicted by the self-luminous accretion disk model. A dependence of line width on excitation potential and on wavelength, expected for a Keplerian disk, is definitely not present in the optical region, nor is the line duplicity due to velocity splitting. The absorption lines observed in the optical region of FU Ori must originate in or near the central object, and here their profiles are shown to be those expected of a rigidly rotating object. They can be fitted by a rapidly rotating (v sin i = 70 km/s) high-luminosity G-type star having a large dark polar spot, with axis inclined toward the line of sight. Over these years, the radial velocity of FU Ori has remained constant to within +/-0.3 km/s, so there is no indication that the star is a spectroscopic binary. These results apply to the optical region ($λ< 8800$ Å); more distant, cooler regions of the disk contribute in the infrared.
description: 14 pages, 11 figures, accepted by AJ
Hardening-softening transition in Fe-doped Pb(Zr,Ti)O3 ceramics and evolution of the third harmonic of the polarization response
Creators: name: Morozov, Maxim I.
name: Damjanovic, Dragan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It is shown that the phase angle of the third harmonic of polarization response (delta3) is very sensitive to the ageing state of hard, Fe-doped lead zirconate titanate [Pb(Zr,Ti)O3 or PZT] ceramics and may thus provide rich information on processes responsible for ageing in hard ferroelectrics. When hard PZT ceramics experience hardening (aged state) - softening (deaged state) transition, delta3 changes by about 90 degrees at subswitching fields and by about 180 degrees at switching conditions. Evolution of delta3 with time, temperature and electric field amplitude during deageing suggests that at least two mechanisms of charge migration, one short-range and one long-range, may participate in the deageing process.
description: accepted in Journal of Applied Physics
Production and reproduction : a critical analysis of the use of ’reproduction’ in Marxist literature on the family and the state
Creators: name: Molloy, Maureen Anne
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study was to develop a reliable and valid in strument which would allow nursing instructors to assess their continu ing education needs. A conceptual model was adopted which divided the learning needs of a professional person into three major areas: basic subject matter, subject matter of related discipline, and personal growth. This model was adapted to the needs of nursing instructors by dividing each major area into subcategories. Competencies were developed for each area and grouped by use of a Q-sort. A questionnaire listing competencies was created and sent to two experts in nursing education from every Provincial Nurses’ Associ ation and from each of the Canadian University Schools of Nursing. The 63 judges selected were asked to rate the importance of each competency on a five point Likert type scale. Eighty-six competencies were deemed to be sufficiently important to be retained for inclusion in the Needs Assessment Instrument. The reliability and validity of the instrument was then considered. Test re-test reliability was established by submitting the instrument to sixteen instructors on two occasions, with a four-week interval between sessions. A Pearson product-moment correlation yielded a reliability co efficient of .97. Face validity and content validity were assumed in view of the methods used for item selection and judging. Construct validity was tested by administering the Needs Assessment Instrument to 35 nursing instructors and comparing continuing education needs as ex pressed by respondents to continuing education needs as measured by the instrument. A Spearman rank correlation between the two tests showed a mean correlation co-efficient of .70 (p < .05). In view of the above findings, it was concluded that the methods employed to construct the Needs Assessment Instrument were successful. The 86-item instrument helps nursing instructors choose from among available continuing education options. It is also potentially useful for program planners who should develop continuing education courses based on learning needs. However, the instrument has not been tested on a sufficiently large scale to permit major conclusions regarding its practical utility.
Enhanced Dust Emission in the HL Tau Disc: A Low-Mass Companion in Formation?
Creators: name: Greaves, J. S.
name: Richards, A. M. S.
name: Rice, W. K. M.
name: Muxlow, T. W. B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have imaged the disc of the young star HL Tau using the VLA at 1.3 cm, with 0.08" resolution (as small as the orbit of Jupiter). The disc is around half the stellar mass, assuming a canonical gas-mass conversion from the measured mass in large dust grains. A simulation shows that such discs are gravitationally unstable, and can fragment at radii of a few tens of AU to form planets. The VLA image shows a compact feature in the disc at 65 AU radius (confirming the `nebulosity' of Welch et al. 2004), which is interpreted as a localised surface density enhancement representing a candidate proto-planet in its earliest accretion phase. If correct, this is the first image of a low-mass companion object seen together with the parent disc material out of which it is forming. The object has an inferred gas plus dust mass of approximately 14 M(Jupiter), similar to the mass of a proto-planet formed in the simulation. The disc instability may have been enhanced by a stellar flyby: the proper motion of the nearby star XZ Tau shows it could have recently passed the HL Tau disc as close as ~600 AU.
description: 5 pages, accepted by MNRAS Letters
Selective epitaxial growth of graphene on SiC
Creators: name: Camara, N.
name: Rius, G.
name: Huntzinger, J. -R.
name: Tiberj, A.
name: Mestres, N.
name: Godignon, P.
name: Camassel, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present an innovative method of selective epitaxial growth of few layers graphene (FLG) on a pre-patterned SiC substrate. The methods involves, successively, the sputtering of a thin AlN layer on top of a mono-crystalline SiC substrate and, then, patterning it with e-beam lithography (EBL) and wet etching. The sublimation of few atomic layers of Si from the SiC substrate occurs only through the selectively etched AlN layer. The presence of the Raman G-band at ~1582 cm-1 in the AlN-free areas is used to validate the concept, it gives absolute evidence of the selective FLG growth.
description: comments: 3 pages, reference 3 replaced
Astrometric effects of non-uniform telescope throughput
Creators: name: Gai, M.
name: Cancelliere, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In real telescopes, the optical parameters evolve with time, and the degradation is often not uniform. This introduces variations in the image profile and therefore photo-centre displacements which, unless corrected, may result in astrometric errors. The effects induced on individual telescopes and interferometric arrays are derived by numerical implementation of a range of cases. The results are evaluated with respect to the potential impact on the most relevant experiments for high precision astrometry in the near future, i.e. Gaia, PRIMA and SIM, and to mitigation techniques applicable from design stage to calibrations.
description: 7 pages, 7 figures; accepted on MNRAS; style file mn2e.cls included
Strong cosmic censorship in near-extremal Kerr-Sen-de Sitter spacetime
Creators: name: Zhang, Ming
name: Jiang, Jie
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We first calculate equations of motion for particles in the Kerr-Sen-de Sitter black hole spacetime. Then in the eikonal regime, we analytically obtain the quasi-normal resonant modes of massless neutral scalar field perturbation and find its imaginary part to be characterized by the surface gravity of the near-extremal Kerr-Sen-de Sitter black hole with Cauchy horizon approaching the event horizon. We further show that the Penrose strong cosmic censorship conjecture is thus respected in this spacetime with dilaton scalar field and axion pseudoscalar field.
description: 9 pages
Pyridinium‐derived mesoionic N‐heterocyclic olefins (py‑mNHOs)
Creators: name: Sun, Qiu
name: Eitzinger, Andreas
name: Esken, Robin
name: Antoni, Patrick W.
name: Mayer, Robert J.
name: Ofial, Armin R.
name: Hansmann, Max M.
Publisher: name: TU Dortmund
Year: 2023
Subjects: subject: (3+2) Cycloaddition
subject: Mesoions
subject: N-Heterocyclic Olefins
subject: Nucleophilicity
subject: Ylides
subject: 540

description: Mesoionic polarization allows access to electron-rich olefins that have found application as organocatalysts, ligands, or nucleophiles. Herein, we report the synthesis and characterization of a series of 3-methylpyridinium-derived mesoionic olefins (py-mNHOs). We used a DFT-supported design concept, which showed that the introduction of aryl groups in the 1-, 2-, 4-, and 6-positions of the heterocyclic core allowed the kinetic stabilization of the novel mesoionic compounds. Tolman electronic parameters indicate that py-mNHOs are remarkably strong σ-donor ligands toward transition metals and main group Lewis acids. Additionally, they are among the strongest nucleophiles on the Mayr reactivity scale. In reactions of py-mNHOs with electron-poor π-systems, a gradual transition from the formation of zwitterionic adducts via stepwise to concerted 1,3-dipolar cycloadditions was observed experimentally and analyzed by quantum-chemical calculations.
description: Angewandte Chemie. International edition; 63(10)
title: (Mis)representing the figure of the woman in corporate social responsibility (CSR): an analysis of gendered circumstances in Malaysian organisations
Creators: name: Rahmat, Wan Nur Amira Binti
Publisher: name: The University of Edinburgh
Year: 2025
Subjects: subject: Neoliberal feminism
subject: Corporate Social Responsibility (CSR)
subject: Postcolonial feminism
subject: Malaysian women
subject: Global North influences

description: Influential accounts of women’s empowerment and gender equality, originally developed in the Global North, increasingly regulate women’s behaviour in the Global South. Drawing specifically – but not exclusively – upon discussions of Corporate Social Responsibility (CSR), this dissertation demonstrates how the figure of the Malaysian woman must often internalise an account of oneself as both highly productive and intensely monitored. It is claimed that CSR normalises a narrow yet hegemonising idea of neoliberal feminism which assimilates the local context through a misrepresentation of the figure of the woman. I contend that Malaysian women must often negotiate impositions from the Global North while also navigating local cultural and political influences. Their failure to conform to either – often contradictory – set of demands leads to a silencing of their voices, a dismissal of their anxieties and an intensification of their responsibilities. Management thereby absolves itself of accountability. I develop my arguments by examining the case of a transnational corporate women's advocacy group, the 30% Club Malaysia, and through interviews with women working in the Malaysian corporate sector. The dissertation develops and applies a postcolonial feminist methodology of reading the power structures affecting women’s circumstances both up and otherwise. Specifically, the feminist solidarity model of Chandra Talpade Mohanty and the transnational literacy approach of Gayatri Spivak enable a complication of the normative discourse of neoliberal feminism. The dissertation indicates the extent to which the empowerment of women in Malaysia, and the achievement of gender equality within Malaysian organisations, often masks a pernicious agenda. I explicate how contemporary Malaysian organisations privilege a certain figuration of woman while deviants become excluded. This research suggests that organisational initiatives aimed at achieving gender equality and empowerment of women require taking into serious consideration the effect of Global North ideologies and power structures that are imposed onto transnational contexts.