cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Probing ultra-light dark photon from inverse Compton-like scattering
Creators: name: Su, Liangliang
name: Wu, Lei
name: Zhu, Bin
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Dark photon not only provides a portal linking dark sector particles and ordinary matter but also is a well-motivated dark matter candidate. We propose to detect the dark photon dark matter through the inverse Compton-like scattering process $p+γ^\prime \to p+γ$. Thanks to the ultra-high energy primary cosmic rays, we find that such a method is able to probe the dark photon mass from $10^{-2}$ eV down to $10^{-19}$ eV with the expected sensitivity of eROSITA $X$-ray telescope, which can extend the current lower limit of dark photon mass from Jupiter's magnetic fields experiment by about three orders of magnitude.
description: 9 pages, 4 figures, discussions and references added, version accepted by PRD
Supplementary Material Lehren und Lernen 2.0
Creators: name: Renn, Oliver
name: Schnabl, Joachim
Publisher: name: figshare
Year: 2017
Subjects: subject: 130103 Higher Education
subject: FOS: Educational sciences

description: Supplementary material (table with data) to the article "Lernen und Lehren 2.0: So hättenSie es gerne!", published in Nachrichten aus der Chemie, Vol. 65, 2017
Holographic maps from quantum gravity states as tensor networks
Creators: name: Colafranceschi, Eugenia
name: Chirco, Goffredo
name: Oriti, Daniele
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We define bulk/boundary maps corresponding to quantum gravity states in the tensorial group field theory formalism, for quantum geometric models sharing the same type of quantum states of loop quantum gravity. The maps are defined in terms of a partition of the quantum geometric data associated to an open graph into bulk and boundary ones, in the spin representation. We determine the general condition on the entanglement structure of the state that makes the bulk/boundary map isometric (a necessary condition for holographic behaviour), and we analyse different types of quantum states, identifying those that define isometric bulk/boundary maps.
description: 27 pages, 6 figures
Revista A cor das letras v. 1 (1997)
Creators: name: Revista A Cor Das Letras
Publisher: name: figshare
Year: 2017
Subjects: subject: 200322 Comparative Language Studies
subject: FOS: Languages and literature
subject: 200524 Comparative Literature Studies
subject: 200399 Language Studies not elsewhere classified
subject: 200599 Literary Studies not elsewhere classified
subject: 200525 Literary Theory
subject: 200514 Literature in Spanish and Portuguese

description: A Cor das LetrasA Revista A Cor das Letras (ISSN 1415-8973) - um periódico dos Programas de Pós-Graduação do Departamento de Letras e Artes da Universidade Estadual de Feira de Santana - tem o objetivo de divulgar trabalhos inéditos, relacionados a Estudos Lingüísticos e Literários Ao Ensino-Aprendizagem de Línguas e Literaturas. A Cor das Letras  teve seu primeiro número publicado em 1997. Em 2015, passou a integrar o Sistema Eletrônico de Publicações. Os números que tiveram apenas uma publicação impressa estão sendo inseridos paulatinamente no Sistema Eletrônico. A partir de 2017, uma revista será quadrimestral: o primeiro número de cada ano será dedicado a Estudos Literários; O segundo, a Estudos Linguísticos; O terceiro, ao Ensino-Aprendizagem de Línguas e Literaturas.
Revista A cor das letras v. 5 (2004).pdf
Creators: name: Revista A Cor Das Letras
Publisher: name: figshare
Year: 2017
Subjects: subject: 200524 Comparative Literature Studies
subject: FOS: Languages and literature
subject: 200322 Comparative Language Studies
subject: 200399 Language Studies not elsewhere classified
subject: 209999 Language, Communication and Culture not elsewhere classified
subject: 200525 Literary Theory
subject: 200514 Literature in Spanish and Portuguese

description: A Revista A Cor das Letras (ISSN 1415-8973) -  um periódico dos Programas de Pós-Graduação do Departamento de Letras e Artes da Universidade Estadual de Feira de Santana - tem o objetivo de divulgar trabalhos inéditos, relacionados a Estudos Lingüísticos e Literários Ao Ensino-Aprendizagem de Línguas e Literaturas. A Cor das Letras teve seu primeiro número publicado em 1997. Em 2015, passou a integrar o Sistema Eletrônico de Publicações. Os números que tiveram apenas uma publicação impresso estão sendo inseridos paulatinamente no Sistema Eletrônico. A partir de 2017, uma revista será quadrimestral: o primeiro número de cada ano será dedicado a Estudos Literários; O segundo, a Estudos Linguísticos; O terceiro, ao Ensino-Aprendizagem de Línguas e Literaturas.
Complexation of neurotransmitters ‒ dopamine, serotonin and melatonin ‒ with a DTPA-based cyclophane of high rigidity: 1H NMR shift and line-broadening
Creators: name: Arvízu-Santamaría, Ana Gabriela
name: Navarro, Rosa Elena
name: Yedith Soberanes
name: Velázquez, Enrique F.
name: Hisila Santacruz
name: Motomichi Inoue
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: The 1H NMR signals of the titled neurotransmitters undergo up-field shift accompanied by line-broadening in NMR titration with the DTPA-based cyclophane at pD 7.3; the cyclophane consists of a 4,4′-bis(1,1′-biphenyl-4,4′-dihydroxy)dianiline unit cyclised by a DTPA (diethylenetriaminepentaacetate) group through two amide linkages. Changes in chemical shifts of dopamine indicate the formation of a 1:1 complex with the formation constant K1 400 M−1; the complex of serotonin is likely to form a 2:1 host‒guest complex with β2 ≈ 105 M−2; melatonin does not form a complex with definite stoichiometry. The primary binding forces in the dopamine and serotonin complexes are electrostatic interaction between cationic neurotransmitter and anionic cyclophane molecules, and the resulting ionic pairs are stabilised by encapsulation. The electrostatic interaction is weakened by electrolytes; in 0.1 M Trizma buffer, dopamine does not yield a definite complex, and serotonin forms a 1:1 complex with K1 80 M−1. Extreme line-broadening of neurotransmitter signals suggests that the molecular motion of the guest molecule is slowed in the complex by interactions with the receptor molecule whose internal molecular motion is quenched partially. The high rigidity of the cyclophane enhances intermolecular interaction in the hydrophobic regions to prolong the lifetime of the complex.
Supplementary Material Lehren und Lernen 2.0
Creators: name: Renn, Oliver
Publisher: name: figshare
Year: 2017
Subjects: subject: 130103 Higher Education
subject: FOS: Educational sciences

description: Supplementary material (table with data) to the article "Lernen und Lehren 2.0: So hättenSie es gerne!", published in Nachrichten aus der Chemie, Vol. 65, 2017
A note on weakly proregular sequences and local cohomology
Creators: name: Ando, Ryoya
Publisher: name: arXiv
Year: 2021
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13D03

description: In this note, we give an elementary proof of the result given by Schenzel that there are functorial isomorphisms between local cohomology groups and Čech cohomology groups, by using weakly proregular sequences. In [Sch03], he used notions of derived category theory in his proof, but we do not use them in this paper.
description: 11 pages
Quadrature Photonic Spatial Ising Machine
Creators: name: Sun, Wenchen
name: Zhang, Wenjia
name: Liu, Yuanyuan
name: Liu, Qingwen
name: He, Zuyuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Emerging Technologies (cs.ET)
subject: Optics (physics.optics)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The mining in physics and biology for accelerating the hardcore algorithm to solve non-deterministic polynomial (NP) hard problems has inspired a great amount of special-purpose ma-chine models. Ising machine has become an efficient solver for various combinatorial optimizationproblems. As a computing accelerator, large-scale photonic spatial Ising machine have great advan-tages and potentials due to excellent scalability and compact system. However, current fundamentallimitation of photonic spatial Ising machine is the configuration flexibility of problem implementationin the accelerator model. Arbitrary spin interactions is highly desired for solving various NP hardproblems. Moreover, the absence of external magnetic field in the proposed photonic Ising machinewill further narrow the freedom to map the optimization applications. In this paper, we propose anovel quadrature photonic spatial Ising machine to break through the limitation of photonic Isingaccelerator by synchronous phase manipulation in two and three sections. Max-cut problem solutionwith graph order of 100 and density from 0.5 to 1 is experimentally demonstrated after almost 100iterations. We derive and verify using simulation the solution for Max-cut problem with more than1600 nodes and the system tolerance for light misalignment. Moreover, vertex cover problem, modeled as an Ising model with external magnetic field, has been successfully implemented to achievethe optimal solution. Our work suggests flexible problem solution by large-scale photonic spatialIsing machine.
description: 8 pages, 7 figures
Translating solutions for a class of quasilinear parabolic initial boundary value problems in Lorentz-Minkowski plane $\mathbb{R}^{2}_{1}$
Creators: name: Gao, Ya
name: Li, Jinghua
name: Mao, Jing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 35K20, 53B30

description: In this paper, we investigate the evolution of spacelike curves in Lorentz-Minkowski plane $\mathbb{R}^{2}_{1}$ along prescribed geometric flows (including the classical curve shortening flow or mean curvature flow as a special case), which correspond to a class of quasilinear parabolic initial boundary value problems, and can prove that this flow exists for all time. Moreover, we can also show that the evolving spacelike curves converge to a spacelike straight line or a spacelike Grim Reaper curve as time tends to infinity.
description: 11 pages. Comments are welcome
Flux Quantization on M5-branes
Creators: name: Giotopoulos, Grigorios
name: Sati, Hisham
name: Schreiber, Urs
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We highlight the need for global completion of the field content in the M5-brane sigma-model analogous to Dirac's charge/flux quantization, and we point out that the superspace Bianchi identities on the worldvolume and on its ambient supergravity background constrain the M5's flux-quantization law to be in a non-abelian cohomology theory rationally equivalent to a twisted form of co-Homotopy. In order to clearly bring out this subtle point we give a streamlined re-derivation of the worldvolume 3-flux via M5 "super-embeddings". Finally, assuming the flux-quantization law to actually be in co-Homotopy ("Hypothesis H") we show how this implies Skyrmion-like solitons on general M5-worldvolumes and (abelian) anyonic solitons on the boundaries of "open M5-branes" in heterotic M-theory.
description: 44 pages; v4: sign convention on covariant derivative changed, following ftn. 11 of arXiv:2403.16456; v3: published version, abstract shortened and typos fixed; v2: minor additions
Variational Quantum Classifiers Through the Lens of the Hessian
Creators: name: Sen, Pinaki
name: Bhatia, Amandeep Singh
name: Bhangu, Kamalpreet Singh
name: Elbeltagi, Ahmed
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In quantum computing, the variational quantum algorithms (VQAs) are well suited for finding optimal combinations of things in specific applications ranging from chemistry all the way to finance. The training of VQAs with gradient descent optimization algorithm has shown a good convergence. At an early stage, the simulation of variational quantum circuits on noisy intermediate-scale quantum (NISQ) devices suffers from noisy outputs. Just like classical deep learning, it also suffers from vanishing gradient problems. It is a realistic goal to study the topology of loss landscape, to visualize the curvature information and trainability of these circuits in the existence of vanishing gradients. In this paper, we calculate the Hessian and visualize the loss landscape of variational quantum classifiers at different points in parameter space. The curvature information of variational quantum classifiers (VQC) is interpreted and the loss function's convergence is shown. It helps us better understand the behavior of variational quantum circuits to tackle optimization problems efficiently. We investigated the variational quantum classifiers via Hessian on quantum computers, starting with a simple 4-bit parity problem to gain insight into the practical behavior of Hessian, then thoroughly analyzed the behavior of Hessian's eigenvalues on training the variational quantum classifier for the Diabetes dataset. Finally, we show how the adaptive Hessian learning rate can influence the convergence while training the variational circuits.
description: 13 pages, 9 figures
A non-perturbative study of bulk photovoltaic effect enhanced by an optically induced phase transition
Creators: name: Rajpurohit, Sangeeta
name: Pemmaraju, C. Das
name: Ogitsu, Tadashi
name: Tan, Liang Z
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Solid systems with strong correlations and interactions under light illumination have the potential for exhibiting interesting bulk photovoltaic behavior in the non-perturbative regime, which has remained largely unexplored in the past theoretical studies. We investigate the bulk photovoltaic response of a perovskite manganite with strongly coupled electron-spin-lattice dynamics, using real-time simulations performed with a tight-binding model. The transient changes in the band structure and the photoinduced phase transitions, emerging from spin and phonon dynamics, result in a nonlinear current versus intensity behavior beyond the perturbative limit. The current rises sharply across a photoinduced magnetic phase transition, which later saturates at higher light intensities due to excited phonon and spin modes. The predicted peak photoresponsivity is orders of magnitude higher than other known ferroelectric oxides such as BiFeO$_3$. We disentangle phonon-and spin-assisted components to the ballistic photocurrent, showing that they are comparable in magnitude. Our results illustrate a promising alternative way for controlling and optimizing the bulk photovoltaic response through the photoinduced phase transitions in strongly-correlated systems.
description: 6 pages, 4 figures
Fundamental limitations in Lindblad descriptions of systems weakly coupled to baths
Creators: name: Tupkary, Devashish
name: Dhar, Abhishek
name: Kulkarni, Manas
name: Purkayastha, Archak
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: It is very common in the literature to write down a Markovian quantum master equation in Lindblad form to describe a system with multiple degrees of freedom and weakly connected to multiple thermal baths which can, in general, be at different temperatures and chemical potentials. However, the microscopically derived quantum master equation up to leading order in system-bath coupling is of the so-called Redfield form which is known to not preserve complete positivity in most cases. Additional approximations to the Redfield equation are required to obtain a Lindblad form. We lay down some fundamental requirements for any further approximations to Redfield equation, which, if violated, leads to physical inconsistencies like inaccuracies in the leading order populations and coherences in the energy eigenbasis, violation of thermalization, violation of local conservation laws at the non-equilibrium steady state (NESS). We argue that one or more of these conditions will generically be violated in all the weak system-bath-coupling Lindblad descriptions existing in literature to our knowledge. As an example, we study the recently derived Universal Lindblad Equation (ULE) and use these conditions to show violation of local conservation laws due to inaccurate coherences but accurate populations in energy eigenbasis. Finally, we exemplify our analytical results numerically in an interacting open quantum spin system.
description: 'Fundamental pathologies' in title has been changed to 'Fundamental limitations'
Investigation of Forming Free Bipolar Resistive Switching Characteristics in Al/Mn3O4/FTO RRAM Device
Creators: name: Pandey, Vidit
name: Adiba
name: Ahmad, Tufail
name: Nehla, Priyanka
name: Munjal, Sandeep
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Bipolar resistive switching (BRS) phenomenon has been demonstrated in Mn3O4 using Al (Aluminum)/Mn3O4/FTO (Fluorine doped Tin Oxide) Resistive Random Access Memory (RRAM) device. The fabricated RRAM device shows good retention, non volatile behavior and forming free BRS. The Current-Voltage (I-V) characteristics and the temperature dependence of the resistance (R-T) measurements were used to explore conduction mechanisms and the thermal activation energy (Ea). The resistance ratio of high resistance state (HRS) to low resistance state (LRS) is ~102. The fabricated RRAM device shows different conduction mechanisms in LRS and HRS state such as ohmic conduction and space charge limited conduction (SCLC). The rupture and formation of conducting filaments (CF) of oxygen vacancies take place by changing the polarity of external voltage, which may be responsible for resistive switching characteristics in the fabricated RRAM device. This fabricated RRAM device is suitable for application in future high density non-volatile memory (NVM) RRAM devices.
description: 18 pages, 6 figures
Revista A cor das letras volume 1 (1997)
Creators: name: Revista A Cor Das Letras
Publisher: name: figshare
Year: 2017
Subjects: subject: 200322 Comparative Language Studies
subject: FOS: Languages and literature
subject: 200524 Comparative Literature Studies
subject: 200399 Language Studies not elsewhere classified
subject: 200599 Literary Studies not elsewhere classified
subject: 200525 Literary Theory
subject: 200514 Literature in Spanish and Portuguese

description: A Cor das LetrasA Revista A Cor das Letras (ISSN 1415-8973) - um periódico dos Programas de Pós-Graduação do Departamento de Letras e Artes da Universidade Estadual de Feira de Santana - tem o objetivo de divulgar trabalhos inéditos, relacionados a Estudos Lingüísticos e Literários Ao Ensino-Aprendizagem de Línguas e Literaturas. A Cor das Letras  teve seu primeiro número publicado em 1997. Em 2015, passou a integrar o Sistema Eletrônico de Publicações. Os números que tiveram apenas uma publicação impressa estão sendo inseridos paulatinamente no Sistema Eletrônico. A partir de 2017, uma revista será quadrimestral: o primeiro número de cada ano será dedicado a Estudos Literários; O segundo, a Estudos Linguísticos; O terceiro, ao Ensino-Aprendizagem de Línguas e Literaturas.
Additional file 9 of Circular RNA expression profiles and CircSnd1-miR-135b/c-foxl2 axis analysis in gonadal differentiation of protogynous hermaphroditic ricefield eel Monopterus albus
Creators: name: He, Zhi
name: Ma, Zhijun
name: Yang, Deying
name: Chen, Qiqi
name: He, Zhide
name: Hu, Jiaxiang
name: Deng, Faqiang
name: Zhang, Qian
name: He, Jiayang
name: Ye, Lijuan
name: Chen, Hongjun
name: He, Liang
name: Huang, Xiaoli
name: Luo, Wei
name: Yang, Shiyong
name: Gu, Xiaobin
name: Zhang, Mingwang
name: Yan, Taiming
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 9.
Translated article: Current Status of Research Concerning Incompleteness in Obsessive-Compulsive Disorder
Creators: name: Ecker, Willi
name: Gönner, Sascha
Publisher: name: Karger Publishers
Year: 2017
Subjects: Medicine

description: In this article, the research on incompleteness experiencesin obsessive-compulsive disorder (OCD) is reviewed.Empircal data concerning the phenomenologicaldifferentiation between self-related incompleteness (SI)and ‘not just right experiences’ (NJREs) are presented.Diagnosticinstruments and empirical results concerningfrequency, association with different symptom-based subtypesand with symptom severity as well as the specificityof NJREs for OCD are outlined. Considerations and resultsconcerning the theoretical conceptualization of incompletenessphenomena are summarized (SI as an OCD-specificform of depersonalisation/derealization, with the‘Two-Stages-Model’ as an etiological hypothesis; NJREsas sensation-based perfectionism related to obsessivecompulsivepersonality features and tic disorders, with apresumed neurobiological origin). So far, there is a lack ofstudies evaluating modifications of cognitive-behavioralmethods tailored to incompleteness-related OCD.
ТАДБИРКОРЛИК ФАОЛИЯТИНИ БОШҚАРИШНИ РАҚАМЛАШТИРИШ ВА УНИ ИҚТИСОДИЙ ХАВФСИЗЛИГИНИ ТАЪМИНЛАШДА АҲАМИЯТИ.
Creators: name: Атаханов, Бекпўлат
name: Асатуллаев, Жаъфарбек
Publisher: name: Zenodo
Year: 2025

description: Ушбу мақолада тадбиркорлик фаолияти иқтисодий хавфсизлигини таъминлаш ва унинг иқтисодий манфаатларини ҳимоя қилиш мақсадида, мавжуд хорижий ёндашувларни тахлил қилинган, унинг назарий тушунчаси билан бир вақтнинг ўзида давлат иқтисодий стратегиялари ишлаб чиқарилганлиги кузатилган, ҳамда бошқарув механизми шаклланганлигини тадқиқ этилган.
Nonlinear down-conversion in a single quantum dot
Creators: name: Jonas, B.
name: Heinze, D.
name: Schöll, E.
name: Kallert, P.
name: Langer, T.
name: Krehs, S.
name: Widhalm, A.
name: Jöns, K. D.
name: Reuter, D.
name: Schumacher, S.
name: Zrenner, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Photonic quantum technologies$^1$, with applications in quantum communication, sensing as well as quantum simulation and computing, are on the verge of becoming commercially available. One crucial building block are tailored nanoscale integratable quantum light sources, matching the specific needs of use-cases. Several different approaches to realize solid-state quantum emitters$^2$ with high performance$^3$ have been pursued. However, the properties of the emitted single photons are always defined by the individual quantum light source and despite numerous quantum emitter tuning techniques$^{4-7}$, scalability is still a major challenge. Here we show an emitter-independent method to tailor and control the properties of the single photon emission. We demonstrate a laser-controlled down-conversion process from an excited state of a quantum three-level system$^8$. Starting from a biexciton state, a tunable control laser field defines a virtual state in a stimulated process. From there, spontaneous emission to the ground state leads to optically controlled single photon emission. Based on this concept, we demonstrate energy tuning of the single photon emission with a control laser field. The nature of the involved quantum states furthermore provides a unique basis for the future control of polarization and bandwidth, as predicted by theory$^{9,10}$. Our demonstration marks an important step towards tailored single photon emission from a photonic quantum system based on quantum optical principles.
Harvesting quantum coherence from axion dark matter
Creators: name: Kanno, Sugumi
name: Matsumura, Akira
name: Soda, Jiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Quantum coherence is one of the most striking features of quantum mechanics rooted in the superposition principle. Recently it has been demonstrated that it is possible to harvest the quantum coherence from a coherent scalar field. In order to explore a new method of detecting axion dark matter, we consider a point-like Unruh-DeWitt detector coupled to the axion field and quantify a coherent measure of the detector. We show that the detector can harvest the quantum coherence from the axion dark matter. To be more precise, we consider a two-level of electron system in an atom as the detector. In this case, we obtain the coherence measure $C=2.2\times 10^{-6}γ\, \left(T/1{\rm s}\right)$ where $T$ and $γ$ are an observation time and the Lorentz factor. At the same time, the axion mass $m_a$ we can probe is determined by the energy gap of the detector.
description: 16pages
Revista A cor das letras v. 5.pdf
Creators: name: Revista A Cor Das Letras
Publisher: name: figshare
Year: 2017
Subjects: subject: 200524 Comparative Literature Studies
subject: FOS: Languages and literature
subject: 200322 Comparative Language Studies
subject: 200399 Language Studies not elsewhere classified
subject: 209999 Language, Communication and Culture not elsewhere classified
subject: 200525 Literary Theory
subject: 200514 Literature in Spanish and Portuguese

description: A Revista A Cor das Letras (ISSN 1415-8973) -  um periódico dos Programas de Pós-Graduação do Departamento de Letras e Artes da Universidade Estadual de Feira de Santana - tem o objetivo de divulgar trabalhos inéditos, relacionados a Estudos Lingüísticos e Literários Ao Ensino-Aprendizagem de Línguas e Literaturas. A Cor das Letras teve seu primeiro número publicado em 1997. Em 2015, passou a integrar o Sistema Eletrônico de Publicações. Os números que tiveram apenas uma publicação impresso estão sendo inseridos paulatinamente no Sistema Eletrônico. A partir de 2017, uma revista será quadrimestral: o primeiro número de cada ano será dedicado a Estudos Literários; O segundo, a Estudos Linguísticos; O terceiro, ao Ensino-Aprendizagem de Línguas e Literaturas.
Translated article: Effectiveness and Outcome Prediction of Outpatient Cognitive Behavioral Therapy
Creators: name: Hasenauer, Melanie
name: Tschuschke, Volker
Publisher: name: Karger Publishers
Year: 2017
Subjects: Medicine

description: Background: Investigations regarding the effectiveness ofoutpatient psychotherapy for various psychological disorderstreated in naturalistic settings are rare. The presentstudy investigates several psychological predictors of outpatientcognitive behavioral therapy in a largely unselectedpatient sample treated by trainees in psychotherapy undersupervision. Patients and Methods: In this prospectivestudy, 73 patients with diverse diagnoses according to theInternational Classification of Diseases 10 (ICD-10) were examinedbefore and after treatment. Effect sizes (Cohen’s d)were used to assess the treatment outcome. To predicttreatment outcome, the strategy of multiple outcome criteriawas used, calculating a load score and an outcome scorefrom several outcome measures. Sociodemographic andpsychological predictor variables were tested in a mixedmodelanalysis. Results: Pre-post analyses showed high effectsizes between d = 0.98 and d = 1.43. The severity of thepsychological problems at treatment start was found to be apositive outcome predictor, whereas an anxiety disorderand a lower level of education were found to be significantnegative treatment outcome predictors. Other variableswere not correlated with outcome. Conclusions: Cognitivebehavioral therapy in a clinical outpatient setting carried outby psychologists in psychotherapy training under supervision can be very effective overall. Patients with anxiety disorders draw the least benefit whereas patients with adaptation and personality disorders benefit the most. Questions arising from the different results are discussed and some suggestions for future research are made.
Neural Network Training Using $\ell_1$-Regularization and Bi-fidelity Data
Creators: name: De, Subhayan
name: Doostan, Alireza
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: With the capability of accurately representing a functional relationship between the inputs of a physical system's model and output quantities of interest, neural networks have become popular for surrogate modeling in scientific applications. However, as these networks are over-parameterized, their training often requires a large amount of data. To prevent overfitting and improve generalization error, regularization based on, e.g., $\ell_1$- and $\ell_2$-norms of the parameters is applied. Similarly, multiple connections of the network may be pruned to increase sparsity in the network parameters. In this paper, we explore the effects of sparsity promoting $\ell_1$-regularization on training neural networks when only a small training dataset from a high-fidelity model is available. As opposed to standard $\ell_1$-regularization that is known to be inadequate, we consider two variants of $\ell_1$-regularization informed by the parameters of an identical network trained using data from lower-fidelity models of the problem at hand. These bi-fidelity strategies are generalizations of transfer learning of neural networks that uses the parameters learned from a large low-fidelity dataset to efficiently train networks for a small high-fidelity dataset. We also compare the bi-fidelity strategies with two $\ell_1$-regularization methods that only use the high-fidelity dataset. Three numerical examples for propagating uncertainty through physical systems are used to show that the proposed bi-fidelity $\ell_1$-regularization strategies produce errors that are one order of magnitude smaller than those of networks trained only using datasets from the high-fidelity models.
description: 28 pages, 14 figures
Additional file 2 of Whole genome sequencing reveals the independent clonal origin of multifocal ileal neuroendocrine tumors
Creators: name: Mäkinen, Netta
name: Zhou, Meng
name: Zhang, Zhouwei
name: Kasai, Yosuke
name: Perez, Elizabeth
name: Kim, Grace E.
name: Thirlwell, Chrissie
name: Nakakura, Eric
name: Meyerson, Matthew
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Figure S1. Classification of coding variants in 75 primary ileal NETs and 15 metastases. Figure S2. Overlap of somatic variation between primary ileal NETs and metastases. Figure S3. Minimally targeted regions of size < 5Mb. Figure S4. Recurrently mutated genes in 75 primary ileal NETs and 15 metastases. Figure S5. Deletions affecting CDKN1B and TNRC6B. Figure S6. Known cancer genes mutated in single primary ileal NETs and metastases. Figure S7. Statistically enriched regions of SNVs and indels in 75 primary ileal NETs and 15 metastases. Figure S8. Somatic tumor evolution in multifocal ileal NET patients.
Generation of stripe-like vortex flow by noncollinear waves on the water surface
Creators: name: Filatov, S. V.
name: Poplevin, A. V.
name: Levchenko, A. A.
name: Parfenyev, V. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We have studied experimentally the generation of vortex flow by gravity waves with a frequency of 2.34 Hz excited on the water surface at an angle $2 θ= arctan(3/4) \approx 36°$ to each other. The resulting horizontal surface flow has a stripe-like spatial structure. The width of the stripes L = $π$/(2ksin$θ$) is determined by the wave vector k of the surface waves and the angle between them, and the length of the stripes is limited by the system size. It was found that the vertical vorticity $Ω$ of the current on the fluid surface is proportional to the product of wave amplitudes, but its value is much higher than the value corresponding to the Stokes drift and it continues to grow with time even after the wave motion reaches a stationary regime. We demonstrate that the measured dependence $Ω$(t) can be described within the recently developed model that takes into account the Eulerian contribution to the generated vortex flow and the effect of surface contamination. This model contains a free parameter that describes the elastic properties of the contaminated surface, and we also show that the found value of this parameter is in reasonable agreement with the measured decay rate of surface waves.
description: 6 pages, 6 figures
title: Point of care ultrasound (POCUS) implementation strategies in low resource settings: a scoping review
Creators: name: Kreuels, Benno
name: Rahden, Paul
name: Banda-Katha, Grace
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Medicine and Health Sciences
subject: Implementation strategies
subject: Low resource settings
subject: POCUS
subject: Point of care ultrasound

description: Scoping review
Integer Lattice Gas with a sampling collision operator for the fluctuating Diffusion Equation
Creators: name: Seekins, Noah
name: Wagner, Alexander J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We developed an integer lattice gas method for the fluctuating diffusion equation. Such a method is unconditionally stable and able to recover the Poisson distribution for the microscopic densities. A key advance for integer lattice gases introduced in this paper is a new sampling collision operator that replaces particle collisions with sampling from an equilibrium distribution. This can increase the efficiency of our integer lattice gas by several orders of magnitude.
description: 10 Pages, 5 Figures
Validation of PD-L1 clone 22C3 immunohistochemical stain on two Ventana DISCOVERY autostainer models: detailed protocols, test performance characteristics, and interobserver reliability analyses
Creators: name: Basu, Atreyee
name: Chiriboga, Luis
name: Narula, Navneet
name: Zhou, Fang
name: Moreira, Andre L
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Immunohistochemical (IHC) stain for PD-L1 as a biomarker for immunotherapy is recommended in non-small cell lung cancer (NSCLC). Under the FDA, the selection of patients for pembrolizumab requires companion diagnostic testing using the Dako Agilent PD-L1 IHC 22C3 pharmDx kit performed on the Dako Autostainer Link 48 platform. However, because it is not widely available, there is need for cross-platform validation. Existing studies provide incomplete protocol detail. In our study, 73 lung tumors were stained using the FDA-approved test (‘gold standard’). The same blocks were stained using two different models of the Ventana DISCOVERY platform (ULTRA, n = 73 and XT, n = 70) using different parameters, and interpreted by three pathologists. The ULTRA group met College of American Pathologists (CAP) validation criteria (concordance 91.8%) while the XT group did not (concordance 67.1%). Using tumor proportion score (TPS) ≥1% and TPS ≥50% as cut-offs, the ULTRA protocol had higher sensitivity (97.8% and 91.7%) than XT (73.3% and 60.9%) and similar specificity (ULTRA 88.9% and 100%, XT 88% and 100%). Discordance between ULTRA and XT was 27%, and in all these cases ULTRA was concordant with gold standard. Interobserver reliability was substantial for ULTRA and almost perfect for XT, providing evidence that staining rather than observer variability accounts for XT’s inferior performance. Cross-validation of the clinically used 22C3 anti PD-L1 antibody test with substantial interobserver agreement is possible on the commonly used the Ventana DISCOVERY ULTRA automated instrument, while the validation failed on the XT. Cautious attention to detail must be paid when choosing cross-validation parameters.
Empowering Differential Networks Using Bayesian Analysis
Creators: name: Smith, Jarod
name: Arashi, Mohammad
name: Bekker, Andriette
Publisher: name: arXiv
Year: 2021
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Differential networks (DN) are important tools for modeling the changes in conditional dependencies between multiple samples. A Bayesian approach for estimating DNs, from the classical viewpoint, is introduced with a computationally efficient threshold selection for graphical model determination. The algorithm separately estimates the precision matrices of the DN using the Bayesian adaptive graphical lasso procedure. Synthetic experiments illustrate that the Bayesian DN performs exceptionally well in numerical accuracy and graphical structure determination in comparison to state-of-the-art methods. The proposed method is applied to South African COVID-$19$ data to investigate the change in DN structure between various phases of the pandemic.
description: 21 pages, 5 Figures, 7 Tables
Translated article: Sexual Dysfunctions in Women with Posttraumatic Stress Disorder – a Review Article
Creators: name: Bornefeld-Ettmann, Pia
name: Steil, Regina
Publisher: name: Karger Publishers
Year: 2017
Subjects: Medicine

description: Sexual dysfunctions, clinical as well as subclinical, andother sexual complaints that accompany aversive emotions,cognitions, and sexual risk behavior are very commonamong women after experiences of sexual violenceand are underestimated as a problem. Anyway, amongvictims of other kinds of traumatic experiences, a highprevalence of sexual distress is found as well. Explanatoryapproaches concentrate on learning theory as wellas the phenomenology of Posttraumatic Stress Disorder(PTSD) itself. Sexuality is an important source of vitality,and the maintenance of sexual dysfunctions can be accompaniedby a risk of impairments in quality of life andself-esteem as well as relationship problems. Aside clinicalpractice, there is also a lack of knowledge in clinicalscience regarding the association between sexual dysfunctionsand traumatic experiences, especially sexualones. In this article, the phenomenology and diagnosticinstruments of female sexual dysfunctions are presented,and consequences of sexual violence on sexuality,also in the context of PTSD, are further explained. Suggestionsare being made on how to include suitable interventionsinto therapy.
Characterization of collective excitations in weakly-coupled disordered superconductors
Creators: name: Fan, Bo
name: Samanta, Abhisek
name: García-García, Antonio M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Isolated islands in two-dimensional strongly-disordered and strongly-coupled superconductors become optically active inducing sub-gap collective excitations in the ac conductivity. Here, we investigate the fate of these excitations as a function of the disorder strength in the experimentally relevant case of weak electron-phonon coupling. An explicit calculation of the ac conductivity, that includes vertex corrections to restore gauge symmetry, reveals the existence of collective sub-gap excitations, related to phase fluctuations and therefore identified as the Goldstone modes, for intermediate to strong disorder. As disorder increases, the shape of the sub-gap excitation transits from peaked close to the spectral gap to a broader distribution reaching much smaller frequencies. Phase-coherence still holds in part of this disorder regime. The requirement to observe sub-gap excitations is not the existence of isolated islands acting as nano-antennas but rather the combination of a sufficiently inhomogeneous order parameter with a phase fluctuation correlation length smaller than the system size. Our results indicate that, by tuning disorder, the Goldstone mode may be observed experimentally in metallic superconductors based for instance on Al, Sn, Pb or Nb.
Isolated and hybrid bilayer graphene rings
Creators: name: Mirzakhani, M.
name: da Costa, D. R.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using the continuum model, we investigate the electronic properties of two types of bilayer graphene (BLG) quantum ring (QR) geometries: (i) an isolated BLG QR and (ii) a monolayer graphene (MLG) with a QR put on top of an infinite graphene sheet (hybrid BLG QR). Solving the Dirac-Weyl equation in the presence of a perpendicular magnetic field and applying the infinite-mass boundary condition at the ring boundaries, we obtain analytical results for the energy levels and corresponding wave spinors for both structures. In the case of isolated BLG QR, we observe a sizeable and magnetically tunable band gap which agrees with the tight-binding transport simulations. Our analytical results also show the intervalley symmetry $ E^K_e (m) = -E^{K'}_h(m) $ between the electron (e) and hole (h) states ($ m $ being the angular momentum quantum number) for the energy spectrum of the isolated BLG QR. The presence of interface boundary in a hybrid BLG QR modifies drastically the energy levels as compared to that of an isolated BLG QR. Its energy levels are tunable from MLG dot, to isolated BLG QR, and to MLG Landau energy levels as magnetic field is varied. Our predictions can be verified experimentally using different techniques such as by magnetotransport measurements.
The bosonic algebraic approach applied to the $[QQ][\bar{Q}\bar{Q}]$ tetraquarks
Creators: name: Majarshin, A. J.
name: Luo, Yan-An
name: Pan, Feng
name: Segovia, Jorge
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The exact eigenenergies of the $T_{4c}=[cc][\bar{c}\bar{c}]$, $T_{4b}=[bb][\bar{b}\bar{b}]$, and $T_{2[bc]}=[bc][\bar{b}\bar{c}]$ tetraquarks are calculated within the extended transitional Hamiltonian approach, in which the so-called Bethe \emph{ansatz} within an infinite-dimensional Lie algebra is used. We fit the parameters appearing in the transitional region from phenomenology associated with potential candidates of tetraquarks. The rotation and vibration transitional theory seems to provide a better description of heavy tetraquarks than other attempts within the same formalism. Our results indicate that the pairing strengths are large enough to provide binding; an extended comparison with the current literature is also performed.
description: 8 pages, 2 figures, 3 tables
Relaxation dynamics in the energy landscape of glass-forming liquids
Creators: name: Nishikawa, Yoshihiko
name: Ozawa, Misaki
name: Ikeda, Atsushi
name: Chaudhuri, Pinaki
name: Berthier, Ludovic
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We numerically study the zero-temperature relaxation dynamics of several glass-forming models to their inherent structures, following quenches from equilibrium configurations sampled across a wide range of initial temperatures. In a mean-field Mari-Kurchan model, we find that relaxation changes from a power-law to an exponential decay below a well-defined temperature, consistent with recent findings in mean-field $p$-spin models. By contrast, for finite-dimensional systems, the relaxation is always algebraic, with a non-trivial universal exponent at high temperatures crossing over to a harmonic value at low temperatures. We demonstrate that this apparent evolution is controlled by a temperature-dependent population of localised glassy excitations. Our work unifies several recent lines of studies aiming at a detailed characterisation of the complex potential energy landscape of glass-formers, and challenges both mean-field and real space descriptions of glasses.
description: 17 pages, 10 figs. V2 accepted for publication at Phys Rev X
Lattice gauge theory computation of the static force
Creators: name: Brambilla, Nora
name: Leino, Viljami
name: Philipsen, Owe
name: Reisinger, Christian
name: Vairo, Antonio
name: Wagner, Marc
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explore a novel approach to compute the force between a static quark and a static antiquark with lattice gauge theory directly. The approach is based on expectation values of Wilson loops or Polyakov loops with chromoelectric field insertions. We discuss theoretical and technical aspects in detail, in particular, how to compensate large discretization errors with a multiplicative renormalization factor and the evaluation using a multilevel algorithm. We also compare numerical results for the static force to corresponding results obtained in the traditional way, i.e., by computing first the static potential and then taking the derivative.
description: 22 pages, 6 figures; v2: updated to match published version