cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The dust morphology of the elliptical Galaxy M86 with SPIRE
Creators: name: Gomez, H. L.
name: Baes, M.
name: Cortese, L.
name: Smith, M. W. L.
name: Boselli, A.
name: Ciesla, L.
name: Bendo, G. J.
name: Pohlen, M.
name: Alighieri, S. di Serego
name: Auld, R.
name: Barlow, M. J.
name: Bock, J. J.
name: Bradford, M.
name: Buat, V.
name: Castro-Rodriguez, N.
name: Chanial, P.
name: Charlot, S.
name: Clements, D. L.
name: Cooray, A.
name: Cormier, D.
name: Davies, J. I.
name: Dwek, E.
name: Eales, S.
name: Elbaz, D.
name: Galametz, M.
name: Galliano, F.
name: Gear, W. K.
name: Glenn, J.
name: Griffin, M.
name: Hony, S.
name: Isaak, K. G.
name: Levenson, L. R.
name: Lu, N.
name: Madden, S.
name: O'Halloran, B.
name: Okumura, K.
name: Oliver, S.
name: Page, M. J.
name: Panuzzo, P.
name: Papageorgiou, A.
name: Parkin, T. J.
name: Perez-Fournon, I.
name: Rangwala, N.
name: Rigby, E. E.
name: Roussel, H.
name: Rykala, A.
name: Sacchi, N.
name: Sauvage, M.
name: Schirm, M. R. P.
name: Schulz, B.
name: Spinoglio, L.
name: Srinivasan, S.
name: Stevens, J. A.
name: Symeonidis, M.
name: Trichas, M.
name: Vaccari, M.
name: Vigroux, L.
name: Wilson, C. D.
name: Wozniak, H.
name: Wright, G. S.
name: Zeilinger, W. W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present Herschel-SPIRE observations at 250-500um of the giant elliptical galaxy M86 and examine the distribution of the resolved cold dust emission and its relation with other galactic tracers. The SPIRE images reveal three dust components: emission from the central region; a dust lane extending north-south; and a bright emission feature 10kpc to the south-east. We estimate that approximately 10^6 solar masses of dust is spatially coincident with atomic and ionized hydrogen, originating from stripped material from the nearby spiral NGC4438 due to recent tidal interactions with M86. The gas-to-dust ratio of the cold gas component ranges from ~20-80. We discuss the different heating mechanisms for the dust features.
description: 5 pages and 3 figures, accepted for A & A Herschel special issue
Teaching with gender in mind: Tools for gender-conscious teaching & inclusive learning environments
Creators: name: Żadkowska, Magdalena
name: Kosakowska-Berezecka, Natasza
name: Dziedzic, Marta
name: Raszczyk, Izabela
name: Drecun, Aleksandra
name: Jovanovic, Kosta
name: Trumic, Maja
name: Solera, Cristina
Publisher: name: Zenodo
Year: 2024

description: In an era where inclusivity and diversity are increasingly recognised as fundamental pillars of education, it is important to ensure that teaching practices are gender-sensitive and inclusive. The gender equality movement is a grassroots movement. Many times, initiatives are driven by individuals. But even with a strong commitment to the task, you need the proper tools to act on it. This brief summarises what you as an individual teacher can do to increase gender equality in your important task of shaping future generations. And how you can work to formalise teaching through a gender lens in your organisation.
Light-Front Densities for Transversely Polarized Hadrons
Creators: name: Lorcé, C.
name: Pasquini, B.
name: Vanderhaeghen, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the recent interpretation of quark distribution functions in the plane transverse to the light-cone direction. Such a mapping is model independent and allows one to build multidimensional pictures of the hadron and to develop a semi-classical intuition of the quark dynamics. We comment briefly the results obtained from the Form Factors of the nucleon. A generalization to a target with arbitrary spin led to a set of preferred values for the electromagnetic coupling characterizing structureless particles. Generalized polarizabilities can also be interpreted in that frame as the distortion of the charge densities due to an external electromagnetic field. Finally, we present preliminary results for the Generalized Transverse-Momentum dependent Distributions which encode in principle the most complete information about quark distributions.
description: 8 pages, 2 figures, 1 table; contribution to the proceedings of "The 4th Workshop on Exclusive Reactions at High Momentum Transfer", Jefferson Lab., May 18-21, 2010
YourTTS: Towards Zero-Shot Multi-Speaker TTS and Zero-Shot Voice Conversion for everyone
Creators: name: Casanova, Edresson
name: Weber, Julian
name: Shulby, Christopher
name: Junior, Arnaldo Candido
name: Gölge, Eren
name: Ponti, Moacir Antonelli
Publisher: name: arXiv
Year: 2021
Subjects: subject: Sound (cs.SD)
subject: Computation and Language (cs.CL)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: YourTTS brings the power of a multilingual approach to the task of zero-shot multi-speaker TTS. Our method builds upon the VITS model and adds several novel modifications for zero-shot multi-speaker and multilingual training. We achieved state-of-the-art (SOTA) results in zero-shot multi-speaker TTS and results comparable to SOTA in zero-shot voice conversion on the VCTK dataset. Additionally, our approach achieves promising results in a target language with a single-speaker dataset, opening possibilities for zero-shot multi-speaker TTS and zero-shot voice conversion systems in low-resource languages. Finally, it is possible to fine-tune the YourTTS model with less than 1 minute of speech and achieve state-of-the-art results in voice similarity and with reasonable quality. This is important to allow synthesis for speakers with a very different voice or recording characteristics from those seen during training.
description: An Erratum was added on the last page of this paper
Water mediated and Baker’s yeast accelerated novel synthetic protocols for tetrahydrobenzo[a]xanthene-11-ones and pyrazolo[3,4-b]quinolines
Creators: name: Anusaya S. Chavan
name: Kharat, Arun S.
name: Bhosle, Manisha R.
name: Sambhaji T. Dhumal
name: Ramrao A. Mane
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Water mediated and baker’s yeast catalyzed, efficient synthetic routes have been first time developed for multicomponent cyclocondensations leading to bioactive tetrahydrobenzo[a]xanthene-11-ones (4a–h) and pyrazolo[3,4-b]quinolines (7a–i). The developed protocols are conducted at room temperature and gave better to excellent yields of the titled compounds. The biocatalytical resource, activated baker’s yeast is readily available, and biodegradable. These protocols are more convenient, scalable, and obey most of the green principles also. The developed protocols are cost effective and better in operation than existing ones.
Can Lorentz-breaking fermionic condensates form in large N strongly-coupled Lattice Gauge Theories?
Creators: name: Tomboulis, E. T.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The possibility of Lorentz symmetry breaking (LSB) has attracted considerable attention in recent years for a variety of reasons, including the attractive prospect of the graviton as a Goldstone boson. Though a number of effective field theory analyses of such phenomena have recently been given it remains an open question whether they can take place in an underlying UV complete theory. Here we consider the question of LSB in large N lattice gauge theories in the strong coupling limit. We apply techniques that have previously been used to correctly predict the formation of chiral symmetry breaking condensates in this limit. Generalizing such methods to other composite operators we find that certain LSB condensates can indeed form. In addition, the interesting possibility arises of condensates that 'lock' internal with external symmetries.
description: 7 pages, 3 figures + PoS logo, presented at the XXVIII International Symposium on Lattice Field Theory, Lattice2010
Skyrmions in twisted bilayer graphene: stability, pairing, and crystallization
Creators: name: Kwan, Yves H.
name: Wagner, Glenn
name: Bultinck, Nick
name: Simon, Steven H.
name: Parameswaran, S. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the excitations that emerge upon doping the translationally-invariant correlated insulating states in magic angle twisted bilayer graphene at various integer filling factors $ν$. We identify parameter regimes where these are associated with skyrmion textures in the spin or pseudospin degrees of freedom, and explore both short-distance pairing effects and the formation of long-range ordered skyrmion crystals. We perform a comprehensive analysis of the pseudospin skyrmions that emerge upon doping insulators at even $ν$, delineating the regime in parameter space where these are the lowest-energy charged excitations by means of self-consistent Hartree-Fock calculations on the interacting Bistritzer-MacDonald model. We explicitly demonstrate the purely electron-mediated pairing of skyrmions, a key ingredient behind a recent proposal of skyrmion superconductivity. Building upon this, we construct hopping models to extract the effective masses of paired skyrmions, and discuss our findings and their implications for skyrmion superconductivity in relation to experiments, focusing on the dome-shaped dependence of the transition temperature on the twist angle. We also investigate the properties of spin skyrmions about the quantized anomalous Hall insulator at $ν=+3$. In both cases, we demonstrate the formation of robust spin/pseudospin skyrmion crystals upon doping to a finite density away from integer filling.
description: 17pp, 12 figures, 4pp references (main text) + 6pp (supplement)
Ein Modell zur Analyse des Limitorder-Tradings in Index-Futures-Märkten
Creators: name: Dorfleitner, Gregor
name: Bamberg, Günter
Publisher: name: Universität Regensburg
Year: 1999
Subjects: subject: Index-Futures; Limit-Strategie; Absorbierte Brownsche Bewegung
subject: 330 Wirtschaft

description: Die meisten Index-Futures-Positionen werden nicht bis Ablauf gehalten, sondern vorzeitig glattgestellt, etwa mittels eines Limitauftrags. Diese Vorgehensweise wird in der vorliegenden Arbeit auf ihre Vorteilhaftigkeit hin untersucht. Dabei wird der Verlauf des Futures-Kurses als geometrische Brownsche Bewegung mit Drift modelliert, wodurch interessierende Größen wie die Erfolgswahrscheinlichkeit oder der Erwartungswert der Limit-Strategie durch Rückgriff auf Erkenntnisse aus der Theorie stochastischer Prozesse berechenbar werden. Da bei schlichter Erwartungswert- bzw. Nutzenerwartungswertmaximierung der Limitauftrag nur in Spezialfällen als günstig gelten kann, wird die Erwartungswertmaximierung auch unter einer Value-at-Risk-Restriktion durchgeführt. Dabei ergeben sich interessante Hinweise zur Gestaltung des Limitauftrages. Eine Übertragung der Resultate auf andere Assets, deren kumulierte Rendite durch eine geometrische Brownsche Bewegung approximiert werden kann, ist generell möglich.
Examination of personality types as predictors of safety attitudes/ behaviours, in support of enhancing safety in healthcare: a scoping review
Creators: name: Kil, Yeojin
name: Graham, Margaret
name: CHATZI, ANNA
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences

description: Purpose – Provisions for the minimisation of human error are essential through governance structures such as recruitment, human resource allocation and education/training. As predictors of safety attitudes/ behaviours, employees’ personality traits (e.g. conscientiousness, sensation-seeking, agreeableness, etc.) have been examined in relation to human error and safety education. Design/methodology/approach – This review aimed to explore research activity on the safety attitudes of healthcare staff and the irrelationship with the different types of personalities, compared to other complex and highly regulated industries. A scoping review was conducted on five electronic databases on all industrial/ work areas from 2001 to July 2023. A total of 60 studies were included in this review. Findings – Studies were categorised as driving/traffic and industrial to draw useful comparisons between healthcare. Certain employees’ personality traits were matched to positive and negative relationships with safety attitudes/behaviours. Results are proposed to be used as a baseline when conducting further relevant research in healthcare. Research limitations/implications – Only two studies were identified in the healthcare sector. Originality/value – The necessity for additional research in healthcare and for comparisons to other complex and highly regulated industries has been established. Safety will be enhanced through healthcare governance through personality-based recruitment, human resource allocation and education/training
Generalized second Bargmann transforms associated with the hyperbolic Landau levels on the Poincaré disk
Creators: name: ElWassouli, Fouzia
name: Ghanmi, Allal
name: Intissar, Ahmed
name: Mouayn, Zouhaïr
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Complex Variables (math.CV)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We deal with a family of generalized coherent states associated to the hyperbolic Landau levels of the Schrödinger operator with uniform magnetic field on the Poincaré disk. Their associated coherent state transforms constitute a class of generalized second Bargmann transforms.
description: 7 pages
Copper catalyzed C–O bond formation by direct C–H activation of THF with phenols: an approach to the synthesis of phenyl tetrahydrofuranyl ethers
Creators: name: Vala, Manoj Kumar
name: Suryakumari Adurthi
name: Sudhakar Chithaluri
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Inorganic Chemistry
subject: Computational Biology

description: A direct oxidative transformation of phenol derivatives to the corresponding tetrahydrofuranyl ethers via C–H bond activation, in the presence of copper catalyst and desired products were achieved in good yields using TBHP as an oxidant.
LFT Representation of a Class of Nonlinear Systems: A Data-Driven Approach
Creators: name: Sinha, Sourav
name: Muniraj, Devaprakash
name: Farhood, Mazen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper focuses on developing a method to obtain an uncertain linear fractional transformation (LFT) system that adequately captures the dynamics of a nonlinear time-invariant system over some desired envelope. First, the nonlinear system is approximated as a polynomial nonlinear state-space (PNLSS) system, and a linear parameter-varying (LPV) representation of the PNLSS model is obtained. To reduce the potentially large number of scheduling parameters in the resulting LPV system, an approach based on the cascade feedforward neural network (CFNN) is proposed. We account for the approximation and reduction errors through the addition of a norm-bounded, causal, dynamic uncertainty in the LFT system. Falsification is used in a novel way to perform guided simulations for deriving a norm bound on the dynamic uncertainty and generating data for training the CFNN. Then, robustness analysis using integral quadratic constraint theory is carried out to choose an LFT representation that leads to a computationally tractable analysis problem and useful analysis results. Finally, the proposed approach is used to obtain an LFT representation for the nonlinear equations of motion of a fixed-wing unmanned aircraft system.
description: Published in proceedings of the 2021 European Control Conference
Exact solution of a two-type branching process: Models of tumor progression
Creators: name: Antal, Tibor
name: Krapivsky, P. L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: An explicit solution for a general two-type birth-death branching process with one way mutation is presented. This continuous time process mimics the evolution of resistance to treatment, or the onset of an extra driver mutation during tumor progression. We obtain the exact generating function of the process at arbitrary times, and derive various large time scaling limits. In the simultaneous small mutation rate and large time scaling limit, the distribution of the mutant cells develops some atypical properties, including a power law tail and diverging average.
description: 11 pages, 3 figures
title: Integrating Prediction and Optimization Display Elements Eecting the Human Driving Behavior
Creators: name: Wang, Jiao
name: Söffker, Dirk
Publisher: name: DuEPublico: Duisburg-Essen Publications Online, University of Duisburg-Essen, Germany
Year: 2015

description: This contribution is focused on the development of the interface between the human

driver and hybrid vehicle. By analyzing the state of art regarding the functional design of

the displays from existing hybrid vehicles, it can be observed that only the actual state and

history of relevant variables like fuel consumption, state of charge, and distance to empty are

displayed. This information is important for the human driver to analyze the realized previous

behavior, but what exactly the driver should or could do in next minutes to improve the driving

behavior during driving is usually not displayed. In order to improve upcoming behavior and

related consequences and therefore to solve the task for further eciency improvement, a new

interface has been developed to help the human driver to drive more eciently. By applying

the new interface, the human driver can perceive the actual driving situation and predicted

corresponding consequences. In comparison, the suggested optimal driving behavior and its

consequences will be displayed as well. With the help of the new interface, the human driver

can decide which behavior should be taken to improve the actual driving behavior.
Regulation of innate immune ontogeny : from preterm neonates to adults
Creators: name: Kan, Bernard
Publisher: name: University of British Columbia
Year: 2018

description: Innate immunity is the first line of defense against infection, and is particularly important in newborns, as they lack immunological memory. During fetal development, innate immunity must be carefully regulated to prevent miscarriage. In contrast, upon reaching term, the innate immune system of the newborn must rapidly become operational to provide protection against exposure to the extra-uterine microbial environment. Human immune responses are generally highly variable among individuals of all ages. According to current models, immune reactivity is highly influenced by an individual’s genetic make-up. However, studies in my thesis suggest that immune reactivity is also drastically influenced by non-genetic factors. My overall goal during my PhD was to understand the mechanisms regulating innate immune reactivity in humans, across the development spectrum, to better understand why some individuals are more susceptible to significant clinical infections. I hypothesized that examining responses at the systems level would inform me on how innate immune reactivity is regulated throughout life. Candida species (spp) are common neonatal pathogens. Despite the clinical importance of these pathogens, relatively little is known about the maturation of anti-fungal innate immune defenses in newborns. In Chapter 2 of my thesis, I examined innate immune responses to Candida spp. in preterm infants. I discovered that cellular metabolism plays a major role in regulating immune reactivity during fetal life, via regulation of protein translation. In Chapter 3 of my thesis, I applied similar methods to understand the factors driving the variability in innate immune responses in healthy adults. As expected, I found a large diversity in immune responses between individuals. Surprisingly, some of these protein level responses were largely independent of gene transcription events. I provide evidence that metabolic pathways also modulate immune reactivity in healthy adults. Overall, my findings enhance our understanding of the factors regulating immune responses in the highly genetically diverse human population, providing insight into the development of these pathways in the late fetal/early neonatal period, and support a major role for metabolism in regulating immune reactivity in the general population and during ontogeny.
On the non-existence of sharply transitive sets of permutations in certain finite permutation groups
Creators: name: Müller, Peter
name: Nagy, Gabor P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Group Theory (math.GR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: In this short note we present a simple combinatorial trick which can be effectively applied to show the non--existence of sharply transitive sets of permutations in certain finite permutation groups.
description: 8 pages
A simple proof of the Borsuk-Ulam theorem for Z_p-actions
Creators: name: Singh, Mahender
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: In this note, we give a simple proof of the Borsuk-Ulam theorem for $Z_p$-actions. We prove that, if $S^n$ and $S^m$ are equipped with free $Z_p$-actions (p prime) and $f: S^n \to S^m$ is a $Z_p$-equivariant map, then $n \leq m$.
description: 4 pages, appeared in Topology Proceedings
Controlling Chaos in Van Der Pol Dynamics Using Signal-Encoded Deep Learning
Creators: name: Zhai, Hanfeng
name: Sands, Timothy
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: G.1.7; G.1.2; I.2.6
subject: 34H05, 34-xx, 37Mxx

description: Controlling nonlinear dynamics is a long-standing problem in engineering. Harnessing known physical information to accelerate or constrain stochastic learning pursues a new paradigm of scientific machine learning. By linearizing nonlinear systems, traditional control methods cannot learn nonlinear features from chaotic data for use in control. Here, we introduce Physics-Informed Deep Operator Control (PIDOC), and by encoding the control signal and initial position into the losses of a physics-informed neural network (PINN), the nonlinear system is forced to exhibit the desired trajectory given the control signal. PIDOC receives signals as physics commands and learns from the chaotic data output from the nonlinear van der Pol system, where the output of the PINN is the control. Applied to a benchmark problem, PIDOC successfully implements control with higher stochasticity for higher-order terms. PIDOC has also been proven to be capable of converging to different desired trajectories based on case studies. Initial positions slightly affect the control accuracy at the beginning stage yet do not change the overall control quality. For highly nonlinear systems, PIDOC is not able to execute control with high accuracy compared with the benchmark problem. The depth and width of the neural network structure do not greatly change the convergence of PIDOC based on case studies of van der Pol systems with low and high nonlinearities. Surprisingly, enlarging the control signal does not help to improve the control quality. The proposed framework can potentially be applied to many nonlinear systems for nonlinear controls.
description: This framework is not proposed for actual control implementation but for simply simulating the control process using deep learning
Citraconic acid and its anhydride-based hetero-Diels–Alder reactions in the synthesis of new thiopyrano[2,3-d][1,3]thiazole derivatives
Creators: name: Zelisko, Nataliya
name: Karpenko, Olexandr
name: Muzychenko, Volodymyr
name: Gzella, Andrzej
name: Lesyk, Roman
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Plant Biology

description: Novel rel-(5R,5aR,11bS)-5-methyl-2,6-dioxo-3,5a,6,11b-tetrahydro-2H,5H-chromeno[4΄,3΄:4,5]thiopyrano[2,3-d][1,3]thiazole-5-carboxylic acids were synthesized in 63–72% yields via tandem acylation-hetero-Diels–Alder reaction of 5-(2-hydroxybenzylidene)-4-thioxo-2-thiazolidinones with citraconic acid and its anhydride. The regio- and stereochemistry of the process was confirmed by NMR spectral data and a single-crystal X-ray diffraction analysis.
Unfolding algorithms and tests using RooUnfold
Creators: name: Adye, Tim
Publisher: name: arXiv
Year: 2011
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The RooUnfold package provides a common framework to evaluate and use different unfolding algorithms, side-by-side. It currently provides implementations or interfaces for the Iterative Bayes, Singular Value Decomposition, and TUnfold methods, as well as bin-by-bin and matrix inversion reference methods. Common tools provide covariance matrix evaluation and multi-dimensional unfolding. A test suite allows comparisons of the performance of the algorithms under different truth and measurement models. Here I outline the package, the unfolding methods, and some experience of their use.
description: 6 pages, 5 figures, presented at PHYSTAT 2011, CERN, Geneva, Switzerland, January 2011, to be published in a CERN Yellow Report
PdSe2 based field-effect transistors
Creators: name: Nandan, Keshari
name: Agarwal, Amit
name: Bhowmick, Somnath
name: Chauhan, Yogesh S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Pentagonal PdSe2 is a promising candidate for layered electronic devices, owing to its high air-stability and anisotropic transport properties. Here, we investigate the performance of p-type FET based on PdSe$_2$ mono-layer using multi-scale simulation framework combining Density functional theory and quantum transport. We find that mono-layer PdSe$_2$ devices show excellent switching characteristics ($<$ 65 mV/decade) for the source-drain direction aligned along both [010] and [100] directions. Both directions also show good on-state current and large transconductance, though these are larger along the [010] direction for a 15 nm channel device. The channel length scaling study of these p-FETs indicates that channel length can be easily scaled down to 7 nm without any significance compromise in the performance. Going below 7 nm, we find that there is a severe degradation in the sub-threshold swing for 4 nm channel length. However, this degradation can be minimized by introducing an underlap structure. The length of underlap is determined by the trade-off between on-state current and the switching performance.
description: 8 pages, 9 figures, IEEE Transactions on Electron Devices 68 (12), 6551-6557
Synthesis and biological activities of novel pyrrolo[1,2-d][1,2,4]triazin-1(2H)-one derivatives
Creators: name: Jesurajan Jebamani
name: Pranesh, Shubha
name: Jayadev Shivalingappa
name: Manjunatha Narayanarao
name: Mussuvir Pasha
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 60506 Virology

description: A series of compounds, in which a novel 6-(4-aminophenyl)pyrrolo[1,2-d][1,2,4]triazin-1(2H)-one derivatives were synthesized and tested for their antimicrobial and antifungal activities. Among all synthesized compounds, compound 7a showed remarkable antimicrobial activity with overall target micro-organisms and compounds 7g and 7l displayed significant inhibitory activity against Escherichia coli (Ec) and Scedosporium (Sc) respectively.
Characterizing long transients in consumer-resource systems with group defense and nonreproductive stages
Creators: name: Arroyo-Esquivel, Jorge
name: Hastings, Alan
name: Baskett, Marissa L
Publisher: name: arXiv
Year: 2022
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: During recent years, the study of long transients has been expanded in ecological theory to account for shifts in long-term behavior of ecological systems. These long transients may lead to regime shifts between alternative states that resemble the dynamics of alternative stable states for a prolonged period of time. One dynamic that potentially leads to long transients is the group defense of a resource in a consumer-resource interaction. Furthermore, time lags in the population caused by discrete reproductive pulses have the potential to produce long transients, either independently or in conjunction to the transients caused by the group defense. In this work, we analyze the potential for long transients in a model for a consumer-resource system in which the resource exhibits group defense and reproduces in discrete reproductive pulses. We develop this discrete-time model by discretizing a pulse differential equation. This system exhibits crawl-by transients near the extinction and carrying capacity states of resource. In addition, we identify a transcritical bifurcation in our system, under which a ghost limit cycle appears. These transients resemble stable states for a prolonged transient time period. We estimate the transient time of our system from these transients using perturbation theory. This work advances an understanding of how systems shift between alternate states and their duration of staying in a given regime and what ecological dynamics may lead to long transients.
Systematics of binding energies and radii based on realistic two-nucleon plus phenomenological three-nucleon interactions
Creators: name: Günther, A.
name: Roth, R.
name: Hergert, H.
name: Reinhardt, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the influence of phenomenological three-nucleon interactions on the systematics of ground-state energies and charge radii throughout the whole nuclear mass range from 4-He to 208-Pb. The three-nucleon interactions supplement unitarily transformed two-body interactions constructed within the Unitary Correlation Operator Method or the Similarity Renormalization Group approach. To be able to address heavy nuclei as well, we treat the many-body problem in Hartree-Fock plus many-body perturbation theory, which is sufficient to assess the systematics of energies and radii, and limit ourselves to regularized three-body contact interactions. We show that even with such a simplistic three-nucleon interaction a simultaneous reproduction of the experimental ground-state energies and charge radii can be achieved, which is not possible with unitarily transformed two-body interactions alone.
description: 10 pages, 10 figures
Partition GHZ SLOCC class of three qubits into ten families under LU
Creators: name: Li, Dafa
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In [Science 340:1205, (2013)], via entanglement polytopes Michael Walter et al. obtained a finite yet systematic classification of multi-particle entanglement. It is well known that under SLOCC, pure states of three (four) qubits are partitioned into six (nine) families. In this paper,we present a LU invariant and an entanglement measures for the GHZ SLOCC class of three qubits, and partition states of the GHZ SLOCC class of three qubits into ten families and each family into two subfamilies under LU. We give a necessary and sufficient condition for the uniqueness of the generalized Schmidt decomposition for the GHZ SLOCC class.
description: 9 pages, no figures. Delete the motivation in previous version. Change abstract, introduction, main text, summary and references
Transitional justice and transformative possibilities in memory as art
Creators: name: Ching, Anson
Publisher: name: University of British Columbia
Year: 2018

description: This thesis explores the role of memory expressed as art in contexts of transitional justice, recognizing that traditional mechanisms are limited in confronting the responsible structures for mass violence. My discussion is located in the larger discussion in transitional justice on moving towards transformative justice as a new agenda of praxis. My contribution maps out how memory as art can function as a mechanism that allows for transformative possibilities since memory as art is about invoking the past in the present in a normative way that demands judgement. By doing so, there is the ability to confront the structures of the past that persist in the present as even though transition is occurring or has already occurred, the sources of mass violence are often just muted or repatterned. In my discussion, I focus on looking at what the arts do to perceivers or secondary witnesses. I suggest that by conveying memory through forms of art, survivors and activists can impart more meaningful understanding, which draws from empathy more than facts, and with understanding, re-imagination and transformative politics becomes possible. Thus, this paper advocates for the use of memory in the form of art as a complimentary and necessary mechanism for achieving the goals of transformative justice. Finally, a concrete example of theory in practice is provided with a discussion of an original participatory art piece titled Now-Then.
Recovering magnetization distributions from their noisy diffraction data
Creators: name: Loh, Ne-Te Duane
name: Eisebitt, Stefan
name: Flewett, Samuel
name: Elser, Veit
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study, using simulated experiments inspired by thin film magnetic domain patterns, the feasibility of phase retrieval in X-ray diffractive imaging in the presence of intrinsic charge scattering given only photon-shot-noise limited diffraction data. We detail a reconstruction algorithm to recover the sample's magnetization distribution under such conditions, and compare its performance with that of Fourier transform holography. Concerning the design of future experiments, we also chart out the reconstruction limits of diffractive imaging when photon- shot-noise and the intensity of charge scattering noise are independently varied. This work is directly relevant to the time-resolved imaging of magnetic dynamics using coherent and ultrafast radiation from X-ray free electron lasers and also to broader classes of diffractive imaging experiments which suffer noisy data, missing data or both.
description: 12 pages, 12 figures
Revisiting magnetotransport in Weyl semimetals
Creators: name: Sharma, G.
name: Nandy, Snehashish
name: Raman, Karthik V.
name: Tewari, Sumanta
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A series of recent papers have claimed that intranode scattering, alone, can contribute to positive longitudinal magnetoconductance (LMC) due to chiral anomaly (CA) in Weyl semimetals (WSMs). We revisit the problem of CA induced LMC in WSMs, and show that intranode scattering, by itself, does not result in enhancement of LMC. In the limit of zero internode scattering, chiral charge must remain conserved, which is shown to actually decrease LMC. Only in the presence of a non-zero internode scattering (however weak), one obtains a positive LMC due to non-conservation of chiral charge. Even weak internode scattering suffices in generating positive LMC, since it redistributes charges across both the nodes, although on a time scale larger than that of the intranode scattering. Furthermore, our calculations reveal that, in contrast to recent works, in inhomogeneous WSMs strain induced axial magnetic field $B_5$, by itself, leads to negative longitudinal magnetoconductance and a negative planar Hall conductance.
description: 5 pages, 6 figures
Polytopes, Hopf algebras and Quasi-symmetric functions
Creators: name: Buchstaber, Victor M.
name: Erokhovets, Nickolai
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05E45, 52B05, 16T05, 57T25

description: In this paper we use the technique of Hopf algebras and quasi-symmetric functions to study the combinatorial polytopes. Consider the free abelian group $\mathcal{P}$ generated by all combinatorial polytopes. There are two natural bilinear operations on this group defined by a direct product $\times $ and a join $\divideontimes$ of polytopes. $(\mathcal{P},\times)$ is a commutative associative bigraded ring of polynomials, and $\mathcal{RP}=(\mathbb Z\varnothing\oplus\mathcal{P},\divideontimes)$ is a commutative associative threegraded ring of polynomials. The ring $\mathcal{RP}$ has the structure of a graded Hopf algebra. It turns out that $\mathcal{P}$ has a natural Hopf comodule structure over $\mathcal{RP}$. Faces operators $d_k$ that send a polytope to the sum of all its $(n-k)$-dimensional faces define on both rings the Hopf module structures over the universal Leibnitz-Hopf algebra $\mathcal{Z}$. This structure gives a ring homomorphism $\R\to\Qs\otimes\R$, where $\R$ is $\mathcal{P}$ or $\mathcal{RP}$. Composing this homomorphism with the characters $P^n\toα^n$ of $\mathcal{P}$, $P^n\toα^{n+1}$ of $\mathcal{RP}$, and with the counit we obtain the ring homomorphisms $f\colon\mathcal{P}\to\Qs[α]$, $f_{\mathcal{RP}}\colon\mathcal{RP}\to\Qs[α]$, and $\F^*:\mathcal{RP}\to\Qs$, where $F$ is the Ehrenborg transformation. We describe the images of these homomorphisms in terms of functional equations, prove that these images are rings of polynomials over $\mathbb Q$, and find the relations between the images, the homomorphisms and the Hopf comodule structures. For each homomorphism $f,\;f_{\mathcal{RP}}$, and $\F$ the images of two polytopes coincide if and only if they have equal flag $f$-vectors. Therefore algebraic structures on the images give the information about flag $f$-vectors of polytopes.
description: 61 pages
Burnout in psychological therapists: A cross‐sectional study investigating the role of supervisory relationship quality
Creators: name: Johnson, Judith
name: Corker, Catherine
name: O'connor, Daryl B.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Burnout is a growing problem in mental health‐care professionals. Clinical supervision is a mandated part of all psychological therapeutic practice but no previous study has explored whether higher quality supervision is associated with lower burnout in qualified psychological therapists. The study aimed to investigate whether the quality of the supervisory relationship was associated with two facets of burnout, exhaustion and disengagement, in a group of psychological therapists once work demands had been accounted for. Psychological therapists were recruited to complete a cross‐sectional online survey between May 2016 and January 2017. The survey measured frequency and quality of clinical supervision, workload factors, and disengagement and burnout. Data were analysed using hierarchical linear regression. Two hundred and ninety‐eight qualified psychological therapists responded to the survey. Results suggested that higher quality supervision was associated with lower disengagement but not lower exhaustion. Frequency of supervision and workload variables were not associated with either facet of burnout. Female gender was associated with higher exhaustion but gender had no association with disengagement. According to previously used cut‐off scores, 235 (78.9%) participants could be classed as suffering from “high burnout,” and 173 (58.1%) participants could be classed as suffering from “high disengagement.” There is a growing need for burnout reduction interventions in mental health‐care professionals. The present results identify a potential role for enhancing the quality of the supervisory relationship by creating more open, safe spaces for supervisees.
Phase transition in the detection of modules in sparse networks
Creators: name: Decelle, Aurelien
name: Krzakala, Florent
name: Moore, Cristopher
name: Zdeborová, Lenka
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present an asymptotically exact analysis of the problem of detecting communities in sparse random networks. Our results are also applicable to detection of functional modules, partitions, and colorings in noisy planted models. Using a cavity method analysis, we unveil a phase transition from a region where the original group assignment is undetectable to one where detection is possible. In some cases, the detectable region splits into an algorithmically hard region and an easy one. Our approach naturally translates into a practical algorithm for detecting modules in sparse networks, and learning the parameters of the underlying model.
description: 4 pages, 4 figures
Learning-Based Framework for Camera Calibration with Distortion Correction and High Precision Feature Detection
Creators: name: Zhang, Yesheng
name: Zhao, Xu
name: Qian, Dahong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Camera calibration is a crucial technique which significantly influences the performance of many robotic systems. Robustness and high precision have always been the pursuit of diverse calibration methods. State-of-the-art calibration techniques based on classical Zhang's method, however, still suffer from environmental noise, radial lens distortion and sub-optimal parameter estimation. Therefore, in this paper, we propose a hybrid camera calibration framework which combines learning-based approaches with traditional methods to handle these bottlenecks. In particular, this framework leverages learning-based approaches to perform efficient distortion correction and robust chessboard corner coordinate encoding. For sub-pixel accuracy of corner detection, a specially-designed coordinate decoding algorithm with embed outlier rejection mechanism is proposed. To avoid sub-optimal estimation results, we improve the traditional parameter estimation by RANSAC algorithm and achieve stable results. Compared with two widely-used camera calibration toolboxes, experiment results on both real and synthetic datasets manifest the better robustness and higher precision of the proposed framework. The massive synthetic dataset is the basis of our framework's decent performance and will be publicly available along with the code at https://github.com/Easonyesheng/CCS.
Reflections for quantum query algorithms
Creators: name: Reichardt, Ben W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that any boolean function can be evaluated optimally by a quantum query algorithm that alternates a certain fixed, input-independent reflection with a second reflection that coherently queries the input string. Originally introduced for solving the unstructured search problem, this two-reflections structure is therefore a universal feature of quantum algorithms. Our proof goes via the general adversary bound, a semi-definite program (SDP) that lower-bounds the quantum query complexity of a function. By a quantum algorithm for evaluating span programs, this lower bound is known to be tight up to a sub-logarithmic factor. The extra factor comes from converting a continuous-time query algorithm into a discrete-query algorithm. We give a direct and simplified quantum algorithm based on the dual SDP, with a bounded-error query complexity that matches the general adversary bound. Therefore, the general adversary lower bound is tight; it is in fact an SDP for quantum query complexity. This implies that the quantum query complexity of the composition f(g,...,g) of two boolean functions f and g matches the product of the query complexities of f and g, without a logarithmic factor for error reduction. It further shows that span programs are equivalent to quantum query algorithms.
description: 13 pages