cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Large $N$ theory of critical Fermi surfaces
Creators: name: Esterlis, Ilya
name: Guo, Haoyu
name: Patel, Aavishkar A.
name: Sachdev, Subir
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe the large $N$ saddle point, and the structure of fluctuations about the saddle point, of a theory containing a sharp, critical Fermi surface in two spatial dimensions. The theory describes the onset of Ising order in a Fermi liquid, and closely related theories apply to other cases with critical Fermi surfaces. We employ random couplings in flavor space between the fermions and the bosonic order parameter, but there is no spatial randomness: consequently, the $G$-$Σ$ path integral of the theory is expressed in terms of fields bilocal in spacetime. The critical exponents of the large $N$ saddle-point are the same as in the well-studied non-random RPA theory; in particular, the entropy density vanishes in the limit of zero temperature. We present a full numerical solution of the large $N$ saddle-point equations, and the results agree with the critical behavior obtained analytically. Following analyses of Sachdev-Ye-Kitaev models, we describe scaling operators which descend from fermion bilinears around the Fermi surface. This leads to a systematic consideration of the role of time reparameterization symmetry, and the scaling of the Cooper pairing and $2k_F$ operators which can determine associated instabilities of the critical Fermi surface. We find no violations of scaling from time reparameterizations. We also consider the same model but with spatially random couplings: this provides a systematic large $N$ theory of a marginal Fermi liquid with Planckian transport.
description: 66 pages, 17 figures. v3: discussion improved. published version
Machine Learning Inference of Molecular Dipole Moment in Liquid Water
Creators: name: Knijff, Lisanne
name: Zhang, Chao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Molecular dipole moment in liquid water is an intriguing property, partly due to the fact that there is no unique way to partition the total electron density into individual molecular contributions. The prevailing method to circumvent this problem is to use maximally localized Wannier functions, which perform a unitary transformation of the occupied molecular orbitals by minimizing the spread function of Boys. Here we revisit this problem using a data-driven approach satisfying two physical constraints, namely: i) The displacement of the atomic charges is proportional to the Berry phase polarization; ii) Each water molecule has a formal charge of zero. It turns out that the distribution of molecular dipole moments in liquid water inferred from latent variables is surprisingly similar to that obtained from maximally localized Wannier functions. Apart from putting a maximum-likelihood footnote to the established method, this work highlights the capability of graph convolution based charge models and the importance of physical constraints on improving the interpretability.
Meta-Stable Supersymmetry Breaking in a Cooling Universe
Creators: name: Fischler, Willy
name: Kaplunovsky, Vadim
name: Krishnan, Chethan
name: Mannelli, Lorenzo
name: Torres, Marcus
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We look at the recently proposed idea that susy breaking can be accomplished in a meta-stable vacuum. In the context of one of the simplest models (the Seiberg-dual of super-QCD), we address the following question: if we look at this theory as it cools from high temperature, is it at all possible that we can end up in a susy-breaking meta-stable vacuum? To get an idea about the answer, we look at the free energy of the system at high temperature. We conclude that the phase-structure of the free-energy as the temperature drops, is indeed such that there is a second order phase transition in the direction of the non-susy vacuum at a finite $T=T_c^Q$. On the other hand, the potential barrier in the direction of the susy vacuum is there all the way till $T \sim 0$.
description: writing full author names
On-sky results for the novel integrated micro-lens ring tip-tilt sensor
Creators: name: Hottinger, Philipp
name: Harris, Robert J.
name: Crass, Jonathan
name: Dietrich, Philipp-Immanuel
name: Blaicher, Matthias
name: Bechter, Andrew
name: Sands, Brian
name: Morris, Tim J.
name: Basden, Alastair G.
name: Bharmal, Nazim Ali
name: Heidt, Jochen
name: Anagnos, Theodoros
name: Neureuther, Philip L.
name: Glück, Martin
name: Power, Jennifer
name: Pott, Jörg-Uwe
name: Koos, Christian
name: Sawodny, Oliver
name: Quirrenbach, Andreas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present the first on-sky results of the micro-lens ring tip-tilt (MLR-TT) sensor. This sensor utilizes a 3D printed micro-lens ring feeding six multi-mode fibers to sense misaligned light, allowing centroid reconstruction. A tip-tilt mirror allows the beam to be corrected, increasing the amount of light coupled into a centrally positioned single-mode (science) fiber. The sensor was tested with the iLocater acquisition camera at the Large Binocular Telescope in November 2019. The limit on the maximum achieved root mean square reconstruction accuracy was found to be 0.19 $λ$/D in both tip and tilt, of which approximately 50% of the power originates at frequencies below 10 Hz. We show the reconstruction accuracy is highly dependent on the estimated Strehl ratio and simulations support the assumption that residual adaptive optics aberrations are the main limit to the reconstruction accuracy. We conclude that this sensor is ideally suited to remove post-adaptive optics non-common path tip tilt residuals. We discuss the next steps for the concept development, including optimizations of the lens and fiber, tuning of the correction algorithm and selection of optimal science cases.
description: Accepted for publication in Journal of the Optical Society of America B (JOSA B)
Reconstructing $p$-divisible groups from their truncations of small level
Creators: name: Vasiu, Adrian
Publisher: name: arXiv
Year: 2006
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11E57, 11G10, 11G18, 11G25, 14F30, 14G35, 14L05, 14L30, and 20G25

description: Let $k$ be an algebraically closed field of characteristic $p>0$. Let $D$ be a $p$-divisible group over $k$. Let $n_D$ be the smallest non-negative integer for which the following statement holds: if $C$ is a $p$-divisible group over $k$ of the same codimension and dimension as $D$ and such that $C[p^{n_D}]$ is isomorphic to $D[p^{n_D}]$, then $C$ is isomorphic to $D$. To the Dieudonné module of $D$ we associate a non-negative integer $\ell_D$ which is a computable upper bound of $n_D$. If $D$ is a product $\prod_{i\in I} D_i$ of isoclinic $p$-divisible groups, we show that $n_D=\ell_D$; if the set $I$ has at least two elements we also show that $n_D\le\max\{1,n_{D_i},n_{D_i}+n_{D_j}-1|i,j\in I, j\neq i\}$. We show that we have $n_D\Le 1$ if and only if $\ell_D\Le 1$; this recovers the classification of minimal $p$-divisible groups obtained by Oort. If $D$ is quasi-special, we prove the Traverso truncation conjecture for $D$. If $D$ is $F$-cyclic, we compute explicitly $n_D$. Many results are proved in the general context of latticed $F$-isocrystals with a (certain) group over $k$.
description: 32 pages. Final version identical with the galley proofs (modulo style). Paper dedicated to the memory of Angela Vasiu. To appear in Comment. Math. Helv
The fundamental parameters of the roAp star alpha Circini
Creators: name: Bruntt, H.
name: North, J. R.
name: Cunha, M.
name: Brandao, I. M.
name: Elkin, V. G.
name: Kurtz, D. W.
name: Davis, J.
name: Bedding, T. R.
name: Jacob, A. P.
name: Owens, S. M.
name: Robertson, J. G.
name: Tango, W. J.
name: Gameiro, J. F.
name: Ireland, M. J.
name: Tuthill, P. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used the Sydney University Stellar Interferometer (SUSI) to measure the angular diameter of alpha Cir. This is the first detailed interferometric study of a rapidly oscillating A (roAp) star, alpha Cir being the brightest member of its class. We used the new and more accurate Hipparcos parallax to determine the radius to be 1.967+-0.066 Rs. We have constrained the bolometric flux from calibrated spectra to determine an effective temperature of 7420+-170 K. This is the first direct determination of the temperature of an roAp star. Our temperature is at the low end of previous estimates, which span over 1000 K and were based on either photometric indices or spectroscopic methods. In addition, we have analysed two high-quality spectra of alpha Cir, obtained at different rotational phases and we find evidence for the presence of spots. In both spectra we find nearly solar abundances of C, O, Si, Ca and Fe, high abundance of Cr and Mn, while Co, Y, Nd and Eu are overabundant by about 1 dex. The results reported here provide important observational constraints for future studies of the atmospheric structure and pulsation of alpha Cir.
description: Accepted by MNRAS (9 pages, 3 figures, 6 tables)
Questions: Growing Things
Creators: name: Girado, Luther
name: Hammond, Jon
name: Hernandez, Betty
name: Grant, Laura
name: Turner, Julie
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: xaw

description: This file contains one of the speakers asking the others questions in Kawaiisu concerning their experience with growing things. Topics covered include a vegetable garden from childhood, canning and preserving food, fetching water, and the food delivery man. There is also general conversation and gossip about photographs and parties from the 1970s and 80s, as well as discussion of different activities of community members and friends.
Texture in Elliott Carter’s A mirror on which to dwell
Creators: name: Ravenscroft, Brenda
Publisher: name: University of British Columbia
Year: 2008

description: This study proposes a theory of texture for Elliott Carter's song cycle A Mirror on Which to Dwell. Texture is an important structural aspect of much recent music, as is exemplified in Carter's music. The first chapter is introductory and discusses other textural theories, and the concept of auditory streams. It also provides background to Elizabeth Bishop and to the poems that Carter selected for the cycle, and introduces the song cycle as a whole. The second chapter outlines a textural theory based on streaming. Texture is defined as comprising those contextually defined aspects of sound which lead one to perceive music as consisting of distinct streams. Individual streams are defined by properties, behaviours processes. The ways in which streams are combined, and the changes that occur in the streams during the combinations constitute textural behaviours and processes. The third chapter presents the ways in which textural behaviours and processes can function. They can have symbolic functions by representing personae and actions in the text. They can also have musical functions and thus can play a role in the delineation of form. In the fourth chapter each song in the Mirror cycle is analyzed. Songs that are texturally clear are analyzed first, followed by those that are more texturally complex. Because of the close relationship between text and music in these songs, each analysis starts with a discussion of the text before turning to the music. The main textural features of each song are presented, and then the analytical discussion focuses on form and text-setting. In the conclusion an overview of the songs is presented. The songs, although formally diverse, are similar in many respects. In all of them Carter establishes the important streams, some of which have significant symbolic roles, in the opening measures. The songs are characterized by similar textural processes, which help to delineate the form of the songs and to portray musically the meaning of the text. An analysis of these songs using the textural theory presented in this study provides insight into their form and meaning.
Metric vs topological receptive entropy of semigroup actions
Creators: name: Biś, Andrzej
name: Dikranjan, Dikran
name: Bruno, Anna Giordano
name: Stoyanov, Luchezar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 28D20, 37A35, 37B40, 37C05

description: We study the receptive metric entropy for semigroup actions on probability spaces, inspired by a similar notion of topological entropy introduced by Hofmann and Stoyanov. We analyze its basic properties and its relation with the classical metric entropy. In the case of semigroup actions on compact metric spaces we compare the receptive metric entropy with the receptive topological entropy looking for a Variational Principle. With this aim we propose several characterizations of the receptive topological entropy. Finally we introduce a receptive local metric entropy inspired by a notion by Bowen generalized in the classical setting of amenable group actions by Zheng and Chen, and we prove partial versions of the Brin-Katok Formula and the local Variational Principle.
General relativistic simulations of pasive-magneto-rotational core collapse with microphysics
Creators: name: Cerdá-Durán, P.
name: Font, J. A.
name: Dimmelmeier, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper presents results from axisymmetric simulations of magneto-rotational stellar core collapse to neutron stars in general relativity using the passive field approximation for the magnetic field. These simulations are performed using a new general relativistic numerical code specifically designed to study this astrophysical scenario. The code is based on the conformally-flat approximation of Einstein's field equations and conservative formulations of the magneto-hydrodynamics equations. The code has been recently upgraded to incorporate a tabulated, microphysical equation of state and an approximate deleptonization scheme. This allows us to perform the most realistic simulations of magneto-rotational core collapse to date, which are compared with simulations employing a simplified (hybrid) equation of state, widely used in the relativistic core collapse community. Furthermore, state-of-the-art (unmagnetized) initial models from stellar evolution are used. In general, stellar evolution models predict weak magnetic fields in the progenitors, which justifies our simplification of performing the computations under the approach that we call the passive field approximation for the magnetic field. Our results show that for the core collapse models with microphysics the saturation of the magnetic field cannot be reached within dynamical time scales by winding up the poloidal magnetic field into a toroidal one. We estimate the effect of other amplification mechanisms including the magneto-rotational instability (MRI) and several types of dynamos.
description: 25 pages, 15 figures, accepted for publication in Astronomy & Astrophysics July 31, 2007. Added 1 figure and a new subsection
Resonant Inelastic X-Ray Scattering Spectra of Cuprate Superconductors Predicted by Model of Fractionalized Fermions
Creators: name: Imada, Masatoshi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We theoretically analyze the intensity of the resonant inelastic X-ray scattering (RIXS) based on Ansatz that the electron is fractionalized into two components. By fitting the angle resolved photoemission spectroscopy (ARPES) data of a cuprate high-$T_{\rm c}$ superconductor Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$ and the accompanied machine learning results obtained before by Yamaji {\it et al.} (arXiv:1903.08060), we determine the paprameters of the two-component fermion model which describes the electron fractionalization. The RIXS spectra are predicted by using this description. We find that the intensity is enhanced in the superconducting phase relative to the normal or pseudogap phase. Since the enhancement is unusual, we propose this can be used as a critical test whether the unconventional electron fractionalization captures the essence of the cuprate superconductivity. This type of combined analyses using multiple independent spectroscopy data, with the help of theoretical and machine learning insights, regarded as {\it integrated spectroscopy} opens a new route to study difficult open issues in strongly correlated electron systems.
description: 23 pages, 14 figures
A generalized blow-up formula for Seiberg--Witten invariants
Creators: name: Froyshov, Kim A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57R57; 57R58

description: We prove a gluing formula for Seiberg--Witten invariants which describes in particular the behaviour of the invariant under blow-up and rational blow-down.
description: 13 pages. v2: Abstract added, one typo corrected
A Law and Economics Analysis of Lobbying Regulation
Towards an optimal structure through the Cost Indicator Index
Creators: name: Krsmanovic, Dusko <1985>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: SECS-P/06 Economia applicata

description: This research primarily represents a contribution to the lobbying regulation research arena. It
introduces an index which for the first time attempts to measure the direct compliance costs of
lobbying regulation. The Cost Indicator Index (CII) offers a brand new platform for qualitative and
quantitative assessment of adopted lobbying laws and proposals of those laws, both in the
comparative and the sui generis dimension. The CII is not just the only new tool introduced in the
last decade, but it is the only tool available for comparative assessments of the costs of lobbying
regulations.
Beside the qualitative contribution, the research introduces an additional theoretical framework for
complementary qualitative analysis of the lobbying laws. The Ninefold theory allows a more
structured assessment and classification of lobbying regulations, both by indication of benefits and
costs. Lastly, this research introduces the Cost-Benefit Labels (CBL). These labels might improve an
ex-ante lobbying regulation impact assessment procedure, primarily in the sui generis perspective.
In its final part, the research focuses on four South East European countries (Slovenia, Serbia,
Montenegro and Macedonia), and for the first time brings them into the discussion and calculates
their CPI and CII scores. The special focus of the application was on Serbia, whose proposal on the
Law on Lobbying has been extensively analysed in qualitative and quantitative terms, taking into
consideration specific political and economic circumstances of the country.
Although the obtained results are of an indicative nature, the CII will probably find its place within
the academic and policymaking arena, and will hopefully contribute to a better understanding of
lobbying regulations worldwide.
From a quantum mechanical description of the assembly processes in microtubules to their semiclassical nonlinear dynamics
Creators: name: Rezania, Vahid
name: Tuszynski, Jack
Publisher: name: arXiv
Year: 2007
Subjects: subject: Cell Behavior (q-bio.CB)
subject: Biomolecules (q-bio.BM)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: In this paper a quantum mechanical description of the assembly/disassembly process for microtubules is proposed. We introduce creation and annihilation operators that raise or lower the microtubule length by a tubulin layer. Following that, the Hamiltonian and corresponding equations of motion are derived that describe the dynamics of microtubules. These Heisenberg-type equations are then transformed to semi-classical equations using the method of coherent structures. The latter equations are very similar to the phenomenological equations that describe dynamic instability of microtubules in a tubulin solution.
description: 20 pages, no figures, to appear in Quantum Biosystems
Emotion and psychopathy: a three-component analysis
Creators: name: Forth, Adelle E.
Publisher: name: University of British Columbia
Year: 2018

description: The study was designed to examine the hypothesis that psychopathy is associated with an affective deficit. Subjects were 42 incarcerated offenders divided into nonpsychopathic and psychopathic groups based on their scores on the Hare Revised Psychopathy Checklist (Hare, 1991). Facial expressions, central and peripheral physiological activity, and subjective ratings of affective valence and arousal were measured during exposure to a series of slides and film clips designed to elicit either positive or negative affective states. The results indicate that psychopaths do not differ from criminal controls in their affective self-report, autonomic nervous system response, or observed facial expressions to emotional stimuli. However, with respect to cerebral asymmetry, psychopaths failed to show relative right frontal activation during exposure to the disgust film. This result is discussed in relation to recent attempts to explain psychopathy in terms of lateralized cerebral dysfunction.
"Audiências Cativas"? – As imagens-marca no manual escolar
Creators: name: Farinha, Isabel
Publisher: name: Zenodo
Year: 2008
Subjects: subject: Advertising/ethics
subject: Advertising/methods
subject: Scholarly Communication
subject: Media and communications
subject: FOS: Media and communications
subject: Media Exposure
subject: Communications Media
subject: Culture Media
subject: Media Exposure/education
subject: Media Exposure/ethics
subject: Media Exposure/standards
subject: Culture Media/standards
subject: Persuasive Communication

description: Resumo: O marketing escolar é uma forma de publicidade no espaço escolar, associada ao papel da criança numa sociedade de consumo (“Marketing in Schools” - Relatório de um estudo efectuado para a Comissão Europeia. DG XXIV, outubro de 1998). Está também ligada à cidadania e aos direitos dos consumidores. Este trabalho centra-se na relação entre as imagens publicitárias presentes nos manuais escolares portugueses do ensino básico (Ciências e Matemática) e no product placement, um instrumento de marketing e catalisador da esfera do consumo. Uma das vertentes desta investigação é a relação entre o tipo de produtos/logótipos presentes nos manuais escolares do ensino básico e as crianças a que se destinam (6 a 10 anos), analisando a quota de mercado das indústrias editoriais envolvidas. Outro foco é a relação entre as actividades/exercícios dos manuais escolares e as fotografias das marcas. Questiona-se também (entrevistas em profundidade), a posição dos actores direta ou indiretamente envolvidos, ilustrando os paradoxos inerentes: O que é que constitui uma prática comercial? As imagens publicitárias são influências comerciais nocivas ou têm um conteúdo educativo definido? São necessárias salvaguardas num mundo de marcas e produtos globalizados? Que papel desempenha o sector empresarial no mundo da escola?
A container-based facility for testing 20'000 20-inch PMTs for JUNO
Creators: name: Wonsak, Björn
name: Tietzsch, Alexander
name: Sterr, Tobias
name: Lachenmaier, Tobias
name: Anfimov, Nikolay
name: Blum, David
name: Hagner, Caren
name: Kaiser, Benedict
name: Meyhöfer, David
name: Olshevskiy, Alexander
name: Qin, Zhonghua
name: Rebber, Henning
name: Reichert, Simon
name: Stender, Malte
name: Wang, Wei
name: Wang, Zhimin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The main goal of the JUNO experiment is the determination of the neutrino mass ordering. To achieve this, an extraordinary energy resolution of at least $3\,\%$ at $1\,$MeV is required for which all parts of the JUNO detector need to meet certain quality criteria. This is relevant in particular for those which are related to the energy resolution of the detector, such as the photomultiplier tubes (PMTs) to be deployed in JUNO. This paper presents the setup and performance of a dedicated PMT mass testing facility to examine and characterize the performance of the 20-inch JUNO PMTs. Its quasi-industrial size and operation level allows to test all 20000 PMTs intended to be used in the JUNO experiment. With this PMT mass testing system, several key characteristics like dark count rate, peak-to-valley ratio, photon detection efficiency, and timing resolution have been determined at an operating gain of $1\times10^7$ and assessed with respect to the requirements of JUNO. Measurement conditions and modes for the PMTs as well as estimated accuracies for the determination of the individual PMT parameters with the system are presented as well.
description: 21 pages, 17 figures, corresponding author Bj\"orn Wonsak, prepared for submission to JINST, revision due to review process of journal
MOESM3 of JMJD2C promotes colorectal cancer metastasis via regulating histone methylation of MALAT1 promoter and enhancing β-catenin signaling pathway
Creators: name: Wu, Xinnan
name: Li, Ruixiao
name: Song, Qing
name: Zhang, Chengcheng
name: Jia, Ru
name: Han, Zhifen
name: Zhou, Lihong
name: Sui, Hua
name: Liu, Xuan
name: Zhu, Huirong
name: Yang, Liu
name: Wang, Yan
name: Ji, Qing
name: Li, Qi
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 3: Figure S3. JMJD2C enhanced the activity of the LEF/TCF promoter. a-b LEF/TCF promoter activity assay in HCT116 and LoVo cells transfected with shRNA/NT, shRNA/JMJD2C, empty vector, or JMJD2C overexpression vector, respectively. *, P < 0.05; **, P < 0.01 (t test).
Marketing Escolar: Comunicação pedagógica ou veículo publicitário?
Creators: name: Farinha, Isabel
Publisher: name: Zenodo
Year: 2008
Subjects: subject: Advertising/ethics
subject: Advertising/methods
subject: Scholarly Communication
subject: Media and communications
subject: FOS: Media and communications

description: Resumo:Pretende-se por um lado, identificar as formas  de comercialização do espaço escolar, encontrando posicionamentos similares e antagónicos suscitados por esta temática no panorama nacional, e por outro, perceber a articulação destas acções de comunicação escolar, com o core business e a responsabilidade social empresarial - axioma contemporâneo revelador da consciência pública da acção privada, legitimador da sua actuação.
The Factors of the Classification of Protein Amino Acids
Creators: name: Rakocevic, Miloje M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Biomolecules (q-bio.BM)
subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: In this work it is shown that three pairs of the factors appear to be the key, i.e. main factors of a natural classification of protein (canonical) amino acids within the amino acid (genetic) code. First pair: the factors of the habit of an amino acid molecule (size and polarity). Second pair: the factors of the association (type of the amino acid/enzyme reactivity and degree of the hydrophobicity/hydrophilicity of an amino acid molecule). Third pair: the factors of the dissociation (degree of the acidity-basicity, over acidic group, COOH and degree of the basicity/acidity over the basic group, NH2). As a result of the influence and interdependence of all six factors (measured through correspondent valid parameters) it appears still one natural classification into polar and non-polar amino acids, where polar amino acids possess negative and non-polar, the positive values of hydropathy index.
description: 14 pages, 6 Tables, 4 Surveys and 1 Figure
Abundance-age relations with red clump stars in open clusters
Creators: name: Casamiquela, L.
name: Soubiran, C.
name: Jofré, P.
name: Chiappini, C.
name: Lagarde, N.
name: Tarricq, Y.
name: Carrera, R.
name: Jordi, C.
name: Balaguer-Núñez, L.
name: Carbajo-Hijarrubia, J.
name: Blanco-Cuaresma, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context: Precise chemical abundances coupled with reliable ages are key ingredients to understand the chemical history of our Galaxy. Open Clusters (OCs) are useful for this purpose because they provide ages with good precision. Aims: The aim of this work is to investigate the relations of different chemical abundance ratios vs age traced by red clump (RC) stars in OCs. Methods: We analyze a large sample of 209 reliable members in 47 OCs with available high-resolution spectroscopy. We applied a differential line-by-line analysis to provide a comprehensive chemical study of 25 chemical species. This sample is among the largest samples of OCs homogeneously characterized in terms of atmospheric parameters, detailed chemistry, and ages. Results: In our metallicity range (-0.21 kpc) than for the Solar neighbourhood, particularly in the outer disk. We conclude that these relations need to be understood also in terms of the complexity of the chemical space introduced by the Galactic dynamics, on top of pure nucleosynthetic arguments, especially out of the local bubble.
description: Accepted for publication in A&A
title: Historicidad y culpa en Muerte de un ciclista y Caídos del cielo
Creators: name: Murillo, Carles
Publisher: name: Edizioni Ca' Foscari - Digital Publishing
Year: 2014

description: This article offers an explanation of Spain’s historicity, from the dictatorship to the consolidation of the democracy, by comparing the assassins of Juan Antonio Bardem’s Muerte de un ciclista (1955) and Ray Loriga’s Ca?dos del cielo (1994). The criminal acts affect the poetics of film and novel, which examination unveils the character’s temporality (Deleuze and Ricoeur) and guilt. This paper moves on to demonstrate how Bardem and Loriga’s poetics of composition replicate an image of the criminals’ historic condition conceptualized from the symbol of Adam’s fall. Its interpretation is later contrasted with the historicity of Spain, whose politics of memory in relation with the Civil War is affected by the oblivion of guilt (Franco’s dictatorship) and grounded on the contradictory idea of forgiveness (democracy).
description: Rassegna iberistica, 37 | 101 | 2014
Questions: Handmade Items
Creators: name: Girado, Luther
name: Hammond, Jon
name: Hernandez, Betty
name: Grant, Laura
name: Turner, Julie
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: xaw

description: This file contains one of the speakers asking the others questions in Kawaiisu concerning handmade items. Topics contain such things as recapping the rattle workshop from an earlier recording, gathering different foods, cutting and cooking with firewood, tasks done on the ranch, and activities done in a child’s playhouse. The speakers also discuss the process of making acorn mush.
Additional file 8: of RNA-Seq and iTRAQ reveal multiple pathways involved in storage root formation and development in sweet potato (Ipomoea batatas L.)
Creators: name: Dong, Tingting
name: Zhu, Mingku
name: Yu, Jiawen
name: Han, Rongpeng
name: Tang, Cheng
name: Xu, Tao
name: Liu, Jingran
name: Li, Zongyun
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: Figure S4. GO analysis of six clusters in proteome. (PDF 267 kb)
Stochastic wake field particle acceleration in Gamma-Ray Bursts
Creators: name: Barbiellini, G.
name: Longo, F.
name: Omodei, N.
name: Celotti, A.
name: Tavani, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Gamma-Ray Burst (GRB) prompt emission can, for specific conditions, be so powerful and short-pulsed to strongly influence any surrounding plasma. In this paper, we briefly discuss the possibility that a very intense initial burst of radiation produced by GRBs satisfy the intensity and temporal conditions to cause stochastic wake-field particle acceleration in a surrounding plasma of moderate density. Recent laboratory experiments clearly indicate that powerful laser beam pulses of tens of femtosecond duration hitting on target plasmas cause efficient particle acceleration and betatron radiation up to tens of MeV. We consider a simple but realistic GRB model for which particle wake-field acceleration can first be excited by a very strong low-energy precursor, and then be effective in producing the observed prompt X-ray and gamma-ray GRB emission. We also briefly discuss some of the consequences of this novel GRB emission mechanism.
description: 5 pages, 1 figure, submitted to MNRAS
Moduli-dependent KK towers and the swampland distance conjecture on the quintic Calabi-Yau manifold
Creators: name: Ashmore, Anthony
name: Ruehle, Fabian
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use numerical methods to obtain moduli-dependent Calabi-Yau metrics and from them the moduli-dependent massive tower of Kaluza-Klein states for the one-parameter family of quintic Calabi-Yau manifolds. We then compute geodesic distances in their Kähler and complex structure moduli space using exact expressions from mirror symmetry, approximate expressions, and numerical methods and compare the results. Finally, we fit the moduli-dependence of the massive spectrum to the geodesic distance to obtain the rate at which states become exponentially light. The result is indeed of order one, as suggested by the swampland distance conjecture. We also observe level-crossing in the eigenvalue spectrum and find that states in small irreducible representations of the symmetry group tend to become lighter than states in larger irreducible representations.
description: references added and minor changes, 10 pages, 5 figures
Warm inflation with non-comoving scalar field and radiation fluid
Creators: name: Harko, Tiberiu
name: Sheikhahmadi, Haidar
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a warm inflationary scenario in which the two dominant matter components present in the early Universe, the scalar field, and the radiation fluid, evolve with different four-velocities. This cosmological system is mathematically equivalent to a single anisotropic fluid, evolving with a four-velocity that is a function of the two independent fluid four-velocities. Due to the presence of the anisotropic physical parameters, the overall cosmological evolution is also anisotropic. We derive the gravitational field equations of the noncomoving scalar field-radiation mixture for a Bianchi type I geometry. By considering that the decay of the scalar field is accompanied by a corresponding radiation generation, we formulate the basic equations of the warm inflationary model in the presence of two noncomoving components. By adopting the slow roll approximation, we perform a detailed comparison of the theoretical predictions of the warm inflationary scenario with noncomoving scalar field and radiation fluid with the observational data obtained by the Planck satellite, by investigating both the weak dissipation and strong dissipation limits. Constraints on the free parameters of the model are obtained in both cases. The functional forms of the scalar field potentials compatible with the noncomoving nature of warm inflation are also derived.
description: 25 pages, 8 figures, accepted for publication in EPJC
CUDA-based optical parametric oscillator simulator
Creators: name: Sanchez, Alfredo Daniel
name: Suddapalli, Chaitanya Kumar
name: Ebrahim-Zadeh, Majid
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The coupled-wave equations (CWEs) in nonlinear optics are the fundamental starting point in the study, analysis, and understanding of various frequency conversion processes in dielectric media subjected to intense laser radiation. In this work, a useful package for the modeling of optical parametric oscillators (OPOs) based on the Split-Step Fourier Method algorithm is presented. The algorithm is scripted in the CUDA programming language in order to speed up the calculations and obtain results in a relatively short time frame by using a graphics processing unit (GPU). Our results show a speedup higher than 50X for vector size of $2^{14}$ in comparison with the analogous code scripted for running only in CPU. The package implements the CWEs to model the propagation of light in second-order nonlinear crystals widely used in optical frequency conversion experiments. In addition, the code allows the user to adapt the cavity configuration by selecting the resonant electric fields and/or incorporating intracavity elements. The package is useful for modeling OPOs or other mathematically similar problems.
description: 27 pages, 5 figures
Asymmetric, helical and mirror-symmetric travelling waves in pipe flow
Creators: name: Pringle, Chris
name: Kerswell, Rich
Publisher: name: arXiv
Year: 2007
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: New families of three-dimensional nonlinear travelling waves are discovered in pipe flow. In contrast to known waves (Faisst & Eckhardt Phys. Rev. Lett. 91, 224502 (2003), Wedin & Kerswell, J. Fluid Mech. 508, 333 (2004)), they possess no rotational symmetry and exist at much lower Reynolds numbers. Particularly striking is an `asymmetric mode' which has one slow streak sandwiched between two fast streaks located preferentially to one side of the pipe. This family originates in a pitchfork bifurcation from a mirror-symmetric travelling wave which can be traced down to a Reynolds number of 773. Helical and non-helical rotating waves are also found emphasizing the richness of phase space even at these very low Reynolds numbers. The delay in Reynolds number from when the laminar state ceases to be a global attractor to turbulent transition is then even larger than previously thought.
description: 4 pages, 7 figures (2 at low resolution)
Additional file 1: of Transketolase (TKT) activity and nuclear localization promote hepatocellular carcinoma in a metabolic and a non-metabolic manner
Creators: name: Qin, Zhaoyu
name: Xiang, Chan
name: Zhong, Fan
name: Liu, Yang
name: Dong, Qiongzhu
name: Li, Kai
name: Shi, Wenhao
name: Ding, Chen
name: Qin, Lunxiu
name: He, Fuchu
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Virology
subject: Computational Biology

description: Table S1. Description for the HCC cell lines. (DOCX 13 kb)
Simulating cosmic rays in clusters of galaxies - I. Effects on the Sunyaev-Zel'dovich effect and the X-ray emission
Creators: name: Pfrommer, Christoph
name: Ensslin, Torsten A.
name: Springel, Volker
name: Jubelgas, Martin
name: Dolag, Klaus
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We performed high-resolution simulations of a sample of 14 galaxy clusters that span a mass range from 5 x 10^13 M_solar/h to 2 x 10^15 M_solar/h to study the effects of cosmic rays (CRs) on thermal cluster observables such as X-ray emission and the Sunyaev-Zel'dovich effect. We analyse the CR effects on the intra-cluster medium while simultaneously taking into account the cluster's dynamical state as well as the mass of the cluster. The modelling of the cosmic ray physics includes adiabatic CR transport processes, injection by supernovae and cosmological structure formation shocks, as well as CR thermalization by Coulomb interaction and catastrophic losses by hadronic interactions. While the relative pressure contained in CRs within the virial radius is of the order of 2 per cent in our non-radiative simulations, their contribution rises to 32 per cent in our simulations with dissipative gas physics including radiative cooling, star formation, and supernova feedback. Interestingly, in the radiative simulations the relative CR pressure reaches high values of the order of equipartition with the thermal gas in each cluster galaxy due to the fast thermal cooling of gas which diminishes the thermal pressure support relative to that in CRs. This also leads to a lower effective adiabatic index of the composite gas that increases the compressibility of the intra-cluster medium. This effect slightly increases the central density, thermal pressure and the gas fraction. While the X-ray luminosity in low mass cool core clusters is boosted by up to 40 per cent, the integrated Sunyaev-Zel'dovich effect appears to be remarkably robust and the total flux decrement only slightly reduced by typically 2 per cent. The resolved Sunyaev-Zel'dovich maps, however, show a larger variation with an increased central flux decrement. [abridged]
description: 25 pages, 15 figures, accepted by MNRAS, full resolution version available at http://www.cita.utoronto.ca/~pfrommer/Publications/CRs_clusters.pdf
Giant electrocaloric effect in the thin film relaxor ferroelectric 0.9 PbMg_(1/3)Nb_(2/3)O_3 - 0.1 PbTiO_3 near room temperature
Creators: name: Mischenko, A. S.
name: Zhang, Q.
name: Whatmore, R. W.
name: Mathur, N. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have recently observed a giant electrocaloric effect (12 K in 25 V) in 350 nm sol-gel Pb Zr_0.95 Ti_0.05 O_3 films near the ferroelectric Curie temperature of 242oC. Here we demonstrate a giant electrocaloric effect (5 K in 25 V) in 260 nm sol-gel films of the relaxor ferroelectric 0.9 PbMg_(1/3)Nb_(2/3)O_3 - 0.1 PbTiO_3 near the Curie temperature of 60oC. This reduction in operating temperature widens the potential for applications in novel cooling systems.
description: 3 pages, 2 figures
Specular transmission and diffuse reflection in phonon scattering at grain boundary
Creators: name: Ong, Zhun-Yong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: It is widely assumed in the literature that the specularity parameters for phonon transmission (forward scattering) and reflection (backward scattering) at a boundary are identical, i.e., the statistical distributions of the transition probabilities between an incident phonon and the range of outgoing phonon modes are the same for both transmission and reflection. However, it is hypothesized by Li and McGaughey that separate specularity parameters are needed to describe the behavior of transmitted and reflected phonons in superlattices and polycrystalline materials correctly. We test this hypothesis by analyzing the mode-resolved specularity parameters computed separately for transmission and reflection processes at a graphene grain boundary. Our results show that backward scattering is considerably more diffuse than forward scattering at most frequencies and polarizations, providing strong evidence for Li and McGaughey's hypothesis, and shed new light on how surfaces and interfaces modify phonon transport within and between domains in nanostructured materials.
description: 7 pages, 5 figures in main text (8 pages, 4 figures in supplemental material)
Mono Rattle Workshop
Creators: name: Girado, Luther
name: Hammond, Jon
name: Hernandez, Betty
name: Grant, Laura
name: Turner, Julie
name: Ahlers, Jocelyn
name: Bourdon, Anne
name: Clark, Sandy
name: Durham, Kim
name: Everson, Merlene
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: xaw

description: This file contains part of a workshop held in the backyard of one of the researchers concerning the process of making traditional Mono rattles.
NLO Event Generation for Chargino Production at the ILC
Creators: name: Kilian, W.
name: Reuter, J.
name: Robens, T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a Monte-Carlo event generator for simulating chargino pair-production at the International Linear Collider (ILC) at next-to-leading order in the electroweak couplings. By properly resumming photons in the soft and collinear regions, we avoid negative event weights, so the program can simulate physical (unweighted) event samples. Photons are explicitly generated throughout the range where they can be experimentally resolved. Inspecting the dependence on the cutoffs separating the soft and collinear regions, we evaluate the systematic errors due to soft and collinear approximations. In the resummation approach, the residual uncertainty can be brought down to the per-mil level, coinciding with the expected statistical uncertainty at the ILC.
description: 23 pages, version to appear in Eur.Phys.Jour.C
paper anonymous.docx
Creators: name: khlifi, sawssen
name: zoua, ghazi
Publisher: name: figshare
Year: 2021
Subjects: subject: 150303 Corporate Governance and Stakeholder Engagement
subject: FOS: Economics and business

description: This paper aimed to determine the effect of corporate social responsibility (CSR) and good corporate governance (GCG) on the real earnings management (REM) level within research and development (R&D)-intensive firms during mergers and acquisitions (M&A) transactions and also the moderating effect of GCG on the relationship between CSR and REM. Therefore, our hypotheses were developed to investigate these issues on a sample of 113 U.S. S&P 500 index firms between 2014 and 2020. This study adopted a sampling process that divides the total sample into two sub-samples according to whether the companies are involved in M&A transactions or not. The results show that CSR and GCG score have a negative and statistically significant effect on REM in highly R&D-intensive firms involved in M&A. Similarly, the results show that GCG plays a mediating role in the relationships between CSR and REM of these firms but not for the non-merged ones.