cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A large modulation of electron-phonon coupling and an emergent superconducting dome in doped strong ferroelectrics
Creators: name: Ma, Jiaji
name: Yang, Ruihan
name: Chen, Hanghui
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We use first-principles methods to study doped strong ferroelectrics (taking BaTiO$_3$ as a prototype). Here we find a strong coupling between itinerant electrons and soft polar phonons in doped BaTiO$_3$, contrary to Anderson/Blount's weakly coupled electron mechanism for "ferroelectric-like metals". As a consequence, across a polar-to-centrosymmetric phase transition in doped BaTiO$_3$, the total electron-phonon coupling is increased to about 0.6 around the critical concentration, which is sufficient to induce phonon-mediated superconductivity of about 2 K. Lowering the crystal symmetry of doped BaTiO$_3$ by imposing epitaxial strain can further increase the superconducting temperature via a sizable coupling between itinerant electrons and acoustic phonons. Our work demonstrates a viable approach to modulating electron-phonon coupling and inducing phonon-mediated superconductivity in doped strong ferroelectrics and potentially in polar metals. Our results also show that the weakly coupled electron mechanism for "ferroelectric-like metals" is not necessarily present in doped strong ferroelectrics.
description: 24 pages, 4 figures
Charge-Transfer Excitations in One-Dimensional Dimerized Mott Insulators
Creators: name: Maeshima, Nobuya
name: Yonemitsu, Kenji
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the optical properties of one-dimensional (1D) dimerized Mott insulators using the 1D dimerized extended Hubbard model. Numerical calculations and a perturbative analysis from the decoupled-dimer limit clarify that there are three relevant classes of charge-transfer (CT) states generated by photoexcitation: interdimer CT unbound states, interdimer CT exciton states, and intradimer CT exciton states. This classification is applied to understanding the optical properties of an organic molecular material, 1,3,5-trithia-2,4,6-triazapentalenyl (TTTA), which is known for its photoinduced transition from the dimerized spin-singlet phase to the regular paramagnetic phase. We conclude that the lowest photoexcited state of TTTA is the interdimer CT exciton state and the second lowest state is the intradimer CT exciton state.
description: 6 pages, 6 figures, to be published in J. Phys. Soc. Jpn
Building ground states of Hubbard model by time-ordered bound-pair injection
Creators: name: Zhang, K. L.
name: Song, Z.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: According to energy band theory, ground states of a normal conductor and insulator can be obtained by filling electrons individually into energy levels, without any restrictions. It fails when the electron-electron correlation is taken into account. In this work, we investigate the dynamic process of building ground states of a Hubbard model. It is based on time-ordered quantum quenches for unidirectional hopping across a central and an auxiliary Hubbard model. We find that there exists a set of optimal parameters (chemical potentials and pair binding energy) for the auxiliary system, which takes the role of electron-pair reservoir. The exceptional point dynamics in non-Hermitian quantum mechanics allows the perfect transfer of electron pair from the reservoir to the central system, obtaining its ground states at different fillings. The dynamics of time-ordered pair-filling not only provides a method for correlated quantum state engineering, but also reveals the feature of the ground state in an alternative way.
description: 12 pages, 7 figures
Percorsi linguistici e semiotici: Critical Multimodal Analysis of Digital Discourse
Creators: name: Moschini, Edited By Ilaria
Publisher: name: Firenze University Press
Year: 2014

description: The language section of LEA - edited by Ilaria Moschini - is dedicated to the Critical Multimodal Analysis of Digital Discourse, an approach that encompasses the linguistic and semiotic detailed investigation of texts within a socio-cultural perspective. It features an interview with Professor Theo van Leeuwen by Ilaria Moschini and four essays: “Retwitting, reposting, repinning; reshaping identities online: Towards a social semiotic multimodal analysis of digital remediation” by Elisabetta Adami; “Multimodal aspects of corporate social responsibility communication” by Carmen Daniela Maier; “Pervasive Technologies and the Paradoxes of Multimodal Digital Communication” by Sandra Petroni and “Can the powerless speak? Linguistic and multimodal corporate media manipulation in digital environments: the case of Malala Yousafzai” by Maria Grazia Sindoni.
description: LEA - Lingue e Letterature d'Oriente e d'Occidente, Vol 3 (2014)
Generalized eigenvalue-counting estimates for the Anderson model
Creators: name: Combes, Jean-Michel
name: Germinet, François
name: Klein, Abel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82B44 (Primary), 47B80, 60H25 (Secondary)

description: We generalize Minami's estimate for the Anderson model and its extensions to $n$ eigenvalues, allowing for $n$ arbitrary intervals and arbitrary single-site probability measures with no atoms. As an application, we derive new results about the multiplicity of eigenvalues and Mott's formula for the ac-conductivity when the single site probability distribution is Hölder continuous.
description: Minor revision
Additional file 1 of Integration of genetic colocalizations with physiological and pharmacological perturbations identifies cardiometabolic disease genes
Creators: name: Gloudemans, Michael J.
name: Balliu, Brunilda
name: Nachun, Daniel
name: Schnurr, Theresia M.
name: Durrant, Matthew G.
name: Ingelsson, Erik
name: Wabitsch, Martin
name: Quertermous, Thomas
name: Montgomery, Stephen B.
name: Knowles, Joshua W.
name: Carcamo-Orive, Ivan
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Document containing supplementary Figures S1-S7 and supplementary Tables S1-S9. Fig. S1. Selection of genome-wide significant loci and overlapping eQTL/sQTL features for colocalization testing. Fig. S2. Example LocusCompare plots for each quartile of the CLPP-mod score. Fig. S3. Characteristics of candidate and colocalized genes. Fig. S4. Three separate loci with multiple colocalized genes. Fig. S5. Effects of increased gene expression on cardiometabolic trait level / risk, according to the alignment of GWAS and eQTL directions at colocalized loci. Fig. S6. All uniquely colocalized genes that are differentially expressed (DE) under at least one perturbation condition. Fig. S7. Proximal interaction networks for each of the monogenic IR or T2D genes that directly interacts with at least one of the uniquely colocalized genes in perturbation conditions. Table S1. GWAS used for colocalization analysis. Table S2. GTEx QTL tissues used for colocalization analysis. Table S3. List of metabolic perturbations and their abbreviations. Table S4. Genetic studies-based IR/T2D genes used in PPI network analysis. Table S5. Monogenic IR/T2D genes used in PPI network analysis. Table S6. Number of candidate/colocalized genes and loci per GWAS. Table S7. Number of candidate/colocalized genes and loci per QTL type / tissue. Table S8. Fraction of tissue-specific, single-gene colocalizations in each tissue / disease combination. Table S9. Integrative summary table for all uniquely colocalized genes at loci with a WHR, TG, and/or HDL colocalization, but not an insulin sensitivity, T2D, fasting glucose, or fasting insulin colocalization.
Axial momentum gains of ions and electrons in magnetic nozzle acceleration
Creators: name: Emoto, Kazuma
name: Takahashi, Kazunori
name: Takao, Yoshinori
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The fully kinetic simulations of magnetic nozzle acceleration are conducted to investigate the axial momentum gains of ions and electrons with the electrostatic and Lorentz forces. Axial momentum gains per ion and electron are directly calculated from the kinetics of charged particles, indicating that electrons in the magnetic nozzle obtain the net axial momentum by the Lorentz force even though they are decelerated by the electrostatic force. Whereas ions are also accelerated by the electrostatic force, the axial momentum gain of electrons increases significantly with increasing the magnetic field strength and becomes dominant in the magnetic nozzle. In addition, it is clearly shown that the axial momentum gain of electrons is due to the electron momentum conversion from the radial to axial direction, resulting in the significant increase in the thrust and the exhaust velocity.
Prospects for measuring dark energy with 21 cm intensity mapping experiments
Creators: name: Wu, Peng-Ju
name: Zhang, Xin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using the 21 cm intensity mapping (IM) technique can efficiently perform large-scale neutral hydrogen surveys, and this method has great potential for measuring dark-energy parameters. Some 21 cm IM experiments aiming at measuring dark energy in the redshift range of $0
description: 23 pages, 10 figures; accepted for publication in JCAP
How oncogenic mutations activate human MAP kinase 1 (MEK1): A molecular dynamics simulation study
Creators: name: Liu, Ye
name: Zhu, Jingxuan
name: Guo, Xiaoqing
name: Huang, Tianci
name: Han, Jiarui
name: Gao, Jianjiong
name: Xu, Dong
name: Han, Weiwei
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Approximately 30% of all types of human cancers possess a constitutively activated the mitogen-activated protein kinase (MAPK) signaling pathway while MAP kinase 1 (MEK1) is a critical component of this pathway. It has been reported mutations could improve the activity of MEK1 to result in cell proliferation and transformation, which is a known oncogenic event in various cancer types. In this study, eight molecular dynamics simulations, Molecular Mechanics Poisson-Boltzmann Surface Area (MM-PBSA), combined with protein structure network were performed to explore the mechanism that mutations activate MEK1. Protein structure networks and hydrogen bonds analysis demonstrated that active mutations broke the interaction between activation segments (residues 216–222) and C-helix (residues 105–121) in MEK1, leading to it transform inactive form to active form. Moreover, hydrogen bond analysis and MM-PBSA calculation indicated that activating mutations decrease the binding affinity between MEK1 and inhibitor to reduce the inhibitory effect of inhibitors. In addition, some active mutations cause structural changes in the Pro-rich loop (residues 261–268) of MEK1. These changes may stabilize the interaction between the MEK1 mutants and the ligands by increasing the number of exposed hydrophobic residues in the active site of MEK1. Our results may provide useful theoretical evidences for the mechanism underlying the role of human MEK1 in human cancers.
The effective radius for production of baryon-antibaryon pairs from $ψ$ decays
Creators: name: Wu, Shu-Ming
name: Wu, Jia-Jun
name: Zou, Bing-Song
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: By using the covariant L-S Scheme for the partial wave analysis, we deduce the ratios between the S-wave and D-wave contributions from the recent data of $ψ(1^-) \to B_8(1/2^+) \bar{B}_8(1/2^-)$ from the BESIII collaboration. For the $J/ψ\to Λ\barΛ$ and $J/ψ(ψ(2S))\to Σ^{+}\barΣ^{-}$, the ratios are fixed and the average angular momenta are computed to estimate the effective radii of these processes. The results show that the effective radii of these decays of $J/ψ(ψ(2S))$ are very small, which are around 0.04 fm. Thus, it is a nice place to search excited baryon resonances with lower spin in the decays of $J/ψ(ψ(2S))$. Furthermore, for the other $ψ(1^-) \to B_8(1/2^+) \bar{B}_8(1/2^-)$ reactions, we propose some methods to get such effective radius.
StringSpinner -- adding spin to the PYTHIA string fragmentation
Creators: name: Kerbizi, Albi
name: Lönnblad, Leif
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: StringSpinner is a plugin for the introduction of the spin effects in the hadronization part of the PYTHIA 8 event generator. The spin effects are generated for pseudoscalar meson production by propagating the quark polarization along the fragmentation chain according to the rules of the quantum mechanical string+${}^3P_0$ model. By using parametrizations for the transversity parton distribution functions, StringSpinner allows to simulate the polarized semi inclusive deep inelastic scattering process on protons and neutrons. The instructions to use StringSpinner and to modify the parametrizations of the transversity distribution functions are presented, as well as an example of the calculation of the Collins asymmetries as obtained from simulations of the transversely polarized semi inclusive deep inelastic scattering process.
description: 16 pages, 1 figure, submitted to Computer Physics Communications
Constant flux relation for aggregation models with desorption and fragmentation
Creators: name: Connaughton, Colm
name: Rajesh, R.
name: Zaboronski, Oleg
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study mass fluxes in aggregation models where mass transfer to large scales by aggregation occurs alongside desorption or fragmentation. Two models are considered. (1) A system of diffusing, aggregating particles with influx and outflux of particles (in-out model) (2) A system of diffusing aggregating particles with fragmentation (chipping model). Both these models can exist in phases where probability distributions are power laws. In these power law phases, we argue that the two point correlation function should have a certain homogeneity exponent. These arguments are based on the exact constant flux scaling valid for simple aggregation with input. Predictions are compared with Monte Carlo simulations.
description: 5 pages 2 figures, To appear in Physica A
Anaerobic fermentation of whey : acidogenesis
Creators: name: Kisaalita, William Ssempa
Publisher: name: University of British Columbia
Year: 2010

description: Based on the initial exploratory results of single-phase (acidogenesis and methanogenesis takes place in one vessel) whey biomethanation studies, a two-phase (acidogenesis and methanogenesis takes place in two separated serial vessels) biomethanation process was found to be more suitable for dealing with the current whey utilisation and/or disposal problem. Acidogenesis was found to be less understood in comparison to methanogenesis and therefore acidogenesis became the central problem of this thesis. Given that 90% of the five-day biochemical oxygen demand in whey is due to lactose, continuous culture (Chemostat) experiments were undertaken to examine the general mechanism of lactose acidogenesis by a mixed undefined culture using ¹⁴C-labeled tracers. Also the influence of whey protein (mainly β-lactoglobulin) on the general fermentation scheme was addressed. Experimental factors included a pH range of 4.0 to 6.5, a mesophilic temperature of 35°C and a dilution rate (D) range of 0.05 to 0.65 h⁻¹. At a fixed pH level, the observed variability in the main acidogenic end products (acetate, propionate, butyrate and lactate) with respect to D were found to be a consequence of the systematic separation of the various microbial groups involved in acidogenesis. Batch incubation of a [¹⁴C(U)]-lactate tracer with chemostat effluent samples and preparative separation of the end products followed by a liquid scintillation assay of the location of the radio activity demonstrated that a microbial population lactate to other end products and hence the observed increase in lactate concentrations at high D values. Further use of [¹⁴C(U)]-butyrate and [¹⁴C(2)]-propionate revealed the predominant carbon flow routes from pyruvate to the various end products. A qualitative lactose acidogenic fermentation model was proposed, in which lactose is converted to pyruvate via the Embden-Meyerhof-Parnas pathway. Pyruvate in a parallel reaction is then converted to lactate and butyrate. In the presence of hydrogen reducing methanogens lactate is converted to acetate in a very fast reaction and not propionate as previously believed-. The implications of these findings with regard to optimising the acidogenic phase reactor are discussed. Acidogenic fermentation of protein together with lactose did not affect the carbon flow scheme. In the D range of 0.05 to 0.15 h⁻¹ low pH (pH < 5.0) was found to favour the butyrate route at the expense of the lactate route and at high pH (pH > 5.5) the lactate route was favoured at the expense of the butyrate route, the pH region of 5.0 to 5.5 being the transition range. In order to describe the microbial growth, the Monod chemostat model was chosen among the various alternatives, because of its simplicity and its physico-chemical basis. The estimated model parameters are reported.
Positron energy distribution in factorized trident process
Creators: name: Titov, A. I.
name: Acosta, U. Hernandez
name: Kampfer, B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We estimate the energy distribution of positrons produced in the interaction of ultra-relativistic electrons with a high-intensity laser beam. The underlying trident process is factorized on the probabilistic level. That is, we deploy a two-step mechanism for the formation of electron-positron pairs. In the first step, a high-energy photon is produced as a result of nonlinear Compton scattering. In the second step, an electron-positron pair is created by the nonlinear (multi-photon) Breit-Wheeler process.
description: 8 pages, 10 figures
A VLA Census of the Galactic H II Region Population
Creators: name: Armentrout, William P.
name: Anderson, Loren D.
name: Wenger, Trey V.
name: Balser, Dana S.
name: Bania, Thomas M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Milky Way contains thousands of H II region candidates identified by their characteristic mid-infrared morphology, but lacking detections of ionized gas tracers such as radio continuum or radio recombination line emission. These targets thus remain unconfirmed as H II regions. With only $\sim$2500 confirmed H II regions in the Milky Way, Galactic surveys are deficient by several thousand nebulae when compared to external galaxies with similar star formation rates. Using sensitive 9 GHz radio continuum observations with the Karl G. Jansky Very Large Array (VLA), we explore a sample of H II region candidates in order to set observational limits on the actual total population of Galactic H II regions. We target all infrared-identified "radio quiet" sources from the WISE Catalog of Galactic H II regions between $245^{\circ}\geq\ell\geq90^{\circ}$ with infrared diameters less than 80$^{\prime\prime}$. We detect radio continuum emission from 50% of the targeted H II region candidates, providing strong evidence that most of the radio quiet candidates are bona fide HII regions. We measure the peak and integrated radio flux densities and compare the inferred Lyman continuum fluxes using models of OB-stars. We conclude that stars of approximately spectral type B2 and earlier are able to create H II regions with similar infrared and radio continuum morphologies as the more luminous H II regions created by O-stars. From our 50% detection rate of "radio quiet" sources, we set a lower limit of $\sim$7000 for the H II region population of the Galaxy. Thus the vast majority of the Milky Way's H II regions remain to be discovered.
description: 11 pages of text, 146 infrared/radio images of faint HII region candidates
Allyl isothiocyanate - Molecule of the Month January 2024 [Archived version]
Creators: name: Cotton, Simon
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 349999
subject: Other chemical sciences not elsewhere classified

description: This is the Molecule of the Month entry for January 2024 about allyl isothiocyanate. It is a pdf archive version of the HTML webpage.
Investigation of the magnetic ground state of GaV$_4$S$_8$ using powder neutron diffraction
Creators: name: Holt, S. J. R.
name: Ritter, C.
name: Lees, M. R.
name: Balakrishnan, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The magnetic ground state of polycrystalline Néel skyrmion hosting material GaV$_4$S$_8$ has been investigated using ac susceptibility and powder neutron diffraction. In the absence of an applied magnetic field GaV$_4$S$_8$ undergoes a transition from a paramagnetic to a cycloidal state below 13~K and then to a ferromagnetic-like state below 6~K. With evidence from ac susceptibility and powder neutron diffraction, we have identified the commensurate magnetic structure at 1.5 K, with ordered magnetic moments of $0.23(2)~μ_{\mathrm{B}}$ on the V1 sites and $0.22(1)~μ_{\mathrm{B}}$ on the V2 sites. These moments have ferromagnetic-like alignment but with a 39(8)$^{\circ}$ canting of the magnetic moments on the V2 sites away from the V$_4$ cluster. In the incommensurate magnetic phase that exists between 6 and 13 K, we provide a thorough and careful analysis of the cycloidal magnetic structure exhibited by this material using powder neutron diffraction.
description: 9 pages, 4 figures
Composite neutrinos and the QCD axion: baryogenesis, dark matter, small Dirac neutrino masses, and vanishing neutron EDM
Creators: name: Chakraborty, Sabyasachi
name: Jung, Tae Hyun
name: Okui, Takemichi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a chiral gauge theory from which light composite Dirac neutrinos dynamically emerge, augmented by a QCD axion to solve the strong CP problem. We show that an interplay between the composite sector and the axion can also simultaneously lead to successful baryogenesis and generate a correct dark matter abundance via "co-genesis" without contradicting present constraints. We predict $ΔN_{\rm eff} \geq 0.14$ and $m_a$ in the range $O(1)\>{\rm μeV}$--$O(10)\>{\rm meV}$, which can be firmly tested by upcoming CMB experiments and axion searches.
description: 10 pages, 1 figure, v2: minor changes, version accepted by Phys. Rev. D
A note on the generalized-hypergeometric solutions of general and single-confluent Heun equations
Creators: name: Melikdzhanian, D. Yu.
name: Ishkhanyan, A. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We review the series solutions of the general and single-confluent Heun equations in terms of powers, ordinary-hypergeometric and confluent-hypergeometric functions. The conditions under which the expansions reduce to finite sums as well as the cases when the coefficients of power-series expansions obey two-term recurrence relations are discussed. Infinitely many cases for which a solution of a general or single-confluent Heun equation is written through a single generalized hypergeometric function are indicated. It is shown that the parameters of this generalized hypergeometric function are the roots of a certain polynomial equation, which we explicitly present for any given order.
Velocity profiles of cyclones and anticyclones in a rotating turbulent flow
Creators: name: Parfenyev, Vladimir M.
name: Vointsev, Ivan A.
name: Skoba, Alyona O.
name: Vergeles, Sergey S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Strong rotation makes an underlying turbulent flow quasi-two-dimensional that leads to the upscale energy transfer. Recent numerical simulations show that under certain conditions, the energy is accumulated at the largest scales of the system, forming coherent vortex structures known as condensates. We analytically describe the interaction of a strong condensate with weak small-scale turbulent pulsations and obtain an equation that allows us to determine the radial velocity profile $U(r)$ of a coherent vortex. When external rotation is fast, the velocity profiles of cyclones and anticyclones are identical to each other and are well described by the dependence $U(r) \propto \pm r \ln (R/r)$, where $R$ is the transverse size of the vortex. As the external rotation decreases, this symmetry disappears: the maximum velocity in cyclones is greater and the position of the maximum is closer to the axis of the vortex in comparison with anticyclones. Besides, our analysis shows that the size $R$ of the anticyclone cannot exceed a certain critical value, which depends on the Rossby and Reynolds numbers. The maximum size of the cyclones is limited only by the system size under the same conditions. Our predictions are based on the linear evolution of turbulent pulsations on the background of the coherent vortex flow and are accompanied by estimates following from the nonlinear Navier-Stokes equation.
description: 12 pages, 6 figures
Effect of feeding frequencies on growth and body composition of juvenile common carp, Cyprinus carpio and their compensation growth
Creators: name: Gultom, Victor David Nico
Publisher: name: Zenodo
Year: 2010
Subjects: feeding frequency; growth; body composition; common carp; Cyprinus carpio.

description: Effects of feeding frequencies on growth and body composition of juvenile common carp Cyprinus carpio were tested. Two separate experiments were done for this purpose. The first experiment (Exp. 1) was conducted with 1 (1-1), 2 (1-2), 3 (1-3), 4 (1-4), 5 (1-5), and 6 times (1-6) daily feeding frequencies for 40 feeding days, and the second experiment (Exp. 2) was done with 1 (2-1), 3 (2-3), 5 (2-5), 6 (2-6), 7 (2-7) and 8 times (2-8) daily feeding frequencies for 60 feeding days. In Exp. 1, the fish grew from an initial body weight of 2.0 g to averages of 4.4 g (1-1), 6.1 g (1-2), 7.5 g (1-3), 9.1 g (1-4), 9.8 g (1-5), and 10.8 g (1-6) after 40 days. The 1-6 groups experienced the highest growth rates during this period. The highest crude lipid content (7.9~8.0%) was recorded from groups 1-5~6. In Exp. 2, fish grew from an initial body weight of 2.4 g up to 15.2 g (2-1), 37.5 g (2-3), 50.4 g (2-5), 53.6 g (2-6), 55.4 g (2-7), and 51.1 g (2-8). Significantly higher body weights were exhibited by fish in groups 2-6 and 2~7 compared to groups 2-3 and 2-1. The lipid content of group 2-1 was lowest, followed by 2-3 and all rest groups, 2-5~8. Six times of feeding frequencies are the optimum feeding frequency for juvenile common carp.
description: Universitas Satya Negara Indonesia
Phase-field modeling of microstructure evolution: Recent applications, perspectives and challenges
Creators: name: Tourret, D.
name: Liu, H.
name: LLorca, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We briefly review the state-of-the-art in phase-field modeling of microstructure evolution. The focus is placed on recent applications of phase-field simulations of solid-state microstructure evolution and solidification that have been compared and/or validated with experiments. They show the potential of phase-field modeling to make quantitative predictions of the link between processing and microstructure. Finally, some current challenges in extending the application of phase-field models within the context of integrated computational materials engineering are mentioned.
Inter-network regions of the Sun at millimetre wavelengths
Creators: name: Wedemeyer-Boehm, S.
name: Ludwig, H. -G.
name: Steffen, M.
name: Leenaarts, J.
name: Freytag, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The continuum intensity at wavelengths around 1 mm provides an excellent way to probe the solar chromosphere. Future high-resolution millimetre arrays, such as the Atacama Large Millimeter Array (ALMA), will thus produce valuable input for the ongoing controversy on the thermal structure and the dynamics of this layer. Synthetic brightness temperature maps are calculated on basis of three-dimensional radiation (magneto-)hydrodynamic (MHD) simulations. While the millimetre continuum at 0.3mm originates mainly from the upper photosphere, the longer wavelengths considered here map the low and middle chromosphere. The effective formation height increases generally with wavelength and also from disk-centre towards the solar limb. The average intensity contribution functions are usually rather broad and in some cases they are even double-peaked as there are contributions from hot shock waves and cool post-shock regions in the model chromosphere. Taking into account the deviations from ionisation equilibrium for hydrogen gives a less strong variation of the electron density and with it of the optical depth. The result is a narrower formation height range. The average brightness temperature increases with wavelength and towards the limb. The relative contrast depends on wavelength in the same way as the average intensity but decreases towards the limb. The dependence of the brightness temperature distribution on wavelength and disk-position can be explained with the differences in formation height and the variation of temperature fluctuations with height in the model atmospheres.
description: 15 pages, 10 figures, accepted for publication in A&A (15.05.07)
Additional file 2 of Long noncoding RNA SNHG16 regulates TLR4-mediated autophagy and NETosis formation in alveolar hemorrhage associated with systemic lupus erythematosus
Creators: name: Hsieh, Yu-Tung
name: Chen, Yi-Cheng
name: Chou, Yu-Chi
name: Kuo, Pin‑Yu
name: Yen, Yi-Ting
name: Tsai, Hung-Wen
name: Wang, Chrong-Reen
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 2: Table S1. Clinical profiles and therapeutic modality of AH in different patient groups. Table S2. Linear regression for SNHG16, TLR4 and TRAF6 levels in PBMCs from SLE and HC. Table S3. Linear regression for SNHG16, TLR4 and TRAF6 levels in PBNs from SLE and HC.
Supplemental Tables JDS.2020-19652
Creators: name: Santos, José Eduardo P.
Publisher: name: figshare
Year: 2021
Subjects: subject: 70204 Animal Nutrition
subject: FOS: Animal and dairy science

description: Supplemental tables for manuscript

https://doi.org/10.3168/jds.2020-19652

published in the Journal of Dairy Science.
Simultaneous electrosynthesis of alkaline hydrogen peroxide and sodium chlorate
Creators: name: Kalu, Eric Egwu
Publisher: name: University of British Columbia
Year: 2010

description: Simultaneous electrosynthesis of alkaline hydrogen peroxide and sodium chlorate in the same cell was investigated. The alkaline hydrogen peroxide was obtained by the electroreduction of oxygen in NaOH on a fixed carbon bed while the chlorate was obtained by the reaction of anodic electrogenerated hypochlorite and hypochlorous acid in an external reactor. An anion membrane, protected on the anode side with an asbestos diaphragm was used as the separator between the two chambers of the cell. The effects of superficial current density (1.2 - 2.4 kA m⁻²), sodium hydroxide concentration (0.5 - 2.0 M) and catholyte flow (0.1 x 10⁻⁶ - 0.5 x 10⁻⁶ m³ s⁻¹) on the chlorate and peroxide current efficiencies were measured. The effect of peroxy to hydroxy mole ratio on the chlorate current efficiency was measured too. The cell was operated at fixed anolyte flow of 2.0 x 10⁻⁶ m³ s⁻¹, inlet and outlet temperatures of 27/33°C (anode side), 20/29°C (cathode side), cell voltages of 3.0 - 4.2 V (current density of 1.2 - 2.4 kA -m⁻²) and a fixed temperature of 70°C in the anolyte tank. Depending on the conditions, alkaline peroxide solution and sodium chlorate were cogenerated at peroxide current efficiency between 20% and 86%, chlorate current efficiency between 51.0% and 80.6% and peroxide concentration ranging from 0.069 M to 0.80 M. The cogeneration of the two chemicals was carried out at both concentrated (2.4 - 2.8 M) and dilute (0 - 0.5 M) chlorate solutions. A relative improvement on the current efficiencies at concentrated chlorate was observed. A chloride balance indicated negligible chloride loss to the catholyte. The results are interpreted in terms of the electrochemical and chemical kinetics and the hydrodynamics of the cell .
Optical representation of thermal nuclear fluctuation effect on band-gap renormalization
Creators: name: Ishii, Kohei
name: Haruyama, Jun
name: Sugino, Osamu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The bandgap of insulating materials is renormalized in various ways by the electron-phonon interaction owing to the dynamical and quantum fluctuations of nuclei. These fluctuation effects are considered in the perturbative Allen-Heine-Cardona theory using the formulae for the Fan-Migdal and Debye-Waller terms. However, the material dependence is not clear in the formulae. Thus, in this study, we focus on the analytical form of the Debye-Waller term and find that the term can be reformulated using the momentum matrix. In addition, the optical selection rule is found to play a role. For diamond-type materials, the Debye-Waller term can be approximately decomposed into a product of the optical transition energy, the mean square displacement of nuclei, and the dipole transition probability. The decomposition can also be applied with an additional approximation to zinc-blende-type materials, as revealed by our first-principles calculation. The magnitudes of the Debye-Waller term of several materials can thus be estimated using basic physical quantities prior to performing the calculation of the electron-phonon interaction.
CrossATNet - A Novel Cross-Attention Based Framework for Sketch-Based Image Retrieval
Creators: name: Chaudhuri, Ushasi
name: Banerjee, Biplab
name: Bhattacharya, Avik
name: Datcu, Mihai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We propose a novel framework for cross-modal zero-shot learning (ZSL) in the context of sketch-based image retrieval (SBIR). Conventionally, the SBIR schema mainly considers simultaneous mappings among the two image views and the semantic side information. Therefore, it is desirable to consider fine-grained classes mainly in the sketch domain using highly discriminative and semantically rich feature space. However, the existing deep generative modeling-based SBIR approaches majorly focus on bridging the gaps between the seen and unseen classes by generating pseudo-unseen-class samples. Besides, violating the ZSL protocol by not utilizing any unseen-class information during training, such techniques do not pay explicit attention to modeling the discriminative nature of the shared space. Also, we note that learning a unified feature space for both the multi-view visual data is a tedious task considering the significant domain difference between sketches and color images. In this respect, as a remedy, we introduce a novel framework for zero-shot SBIR. While we define a cross-modal triplet loss to ensure the discriminative nature of the shared space, an innovative cross-modal attention learning strategy is also proposed to guide feature extraction from the image domain exploiting information from the respective sketch counterpart. In order to preserve the semantic consistency of the shared space, we consider a graph CNN-based module that propagates the semantic class topology to the shared space. To ensure an improved response time during inference, we further explore the possibility of representing the shared space in terms of hash codes. Experimental results obtained on the benchmark TU-Berlin and the Sketchy datasets confirm the superiority of CrossATNet in yielding state-of-the-art results.
description: Accepted in Journal of Image and Vision Computing
การประเมินความพึงพอใจต่อผลการเรียนรู้ด้านมีคุณธรรม ในวิชาพุทธบัณฑิตจุฬาฯ สง่างามของนิสิตจุฬาลงกรณ์มหาวิทยาลัย
Creators: name: พรทิพย์ โภไคยอุดม
Publisher: name: ศูนย์คุณธรรม (องค์การมหาชน)
Year: 2012
Subjects: การศึกษาทั่วไป,พุทธบัณฑิต,ผลการเรียนรู้ด้านมีคุณธรรม,ภาวนา 4

description: 1, 1, วารสารวิชาการคุณธรรมความดี
GDDR: GNN-based Data-Driven Routing
Creators: name: Hope, Oliver
name: Yoneki, Eiko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: We explore the feasibility of combining Graph Neural Network-based policy architectures with Deep Reinforcement Learning as an approach to problems in systems. This fits particularly well with operations on networks, which naturally take the form of graphs. As a case study, we take the idea of data-driven routing in intradomain traffic engineering, whereby the routing of data in a network can be managed taking into account the data itself. The particular subproblem which we examine is minimising link congestion in networks using knowledge of historic traffic flows. We show through experiments that an approach using Graph Neural Networks (GNNs) performs at least as well as previous work using Multilayer Perceptron architectures. GNNs have the added benefit that they allow for the generalisation of trained agents to different network topologies with no extra work. Furthermore, we believe that this technique is applicable to a far wider selection of problems in systems research.
A 3D Printing Hexacopter: Design and Demonstration
Creators: name: Nettekoven, Alexander
name: Topcu, Ufuk
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: 3D printing using robots has garnered significant interest in manufacturing and construction in recent years. A robot's versatility paired with the design freedom of 3D printing offers promising opportunities for how parts and structures are built in the future. However, 3D printed objects are still limited in size and location due to a lack of vertical mobility of ground robots. These limitations severely restrict the potential of the 3D printing process. To overcome these limitations, we develop a hexacopter testbed that can print via fused deposition modeling during flight. We discuss the design of this testbed and develop a simple control strategy for initial print tests. By successfully performing these initial print tests, we demonstrate the feasibility of this approach and lay the groundwork for printing 3D parts and structures with drones.
Wadge Degrees of Infinitary Rational Relations
Creators: name: Finkel, Olivier
Publisher: name: arXiv
Year: 2008
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Computational Complexity (cs.CC)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We show that, from the topological point of view, 2-tape Büchi automata have the same accepting power as Turing machines equipped with a Büchi acceptance condition. The Borel and the Wadge hierarchies of the class RAT_omega of infinitary rational relations accepted by 2-tape Büchi automata are equal to the Borel and the Wadge hierarchies of omega-languages accepted by real-time Büchi 1-counter automata or by Büchi Turing machines. In particular, for every non-null recursive ordinal $α$, there exist some $Σ^0_α$-complete and some $Π^0_α$-complete infinitary rational relations. And the supremum of the set of Borel ranks of infinitary rational relations is an ordinal $γ^1_2$ which is strictly greater than the first non-recursive ordinal $ω_1^{CK}$. This very surprising result gives answers to questions of Simonnet (1992) and of Lescow and Thomas (1988,1994).
description: to appear in the journal Mathematics in Computer Science, in a Special Issue on Intensional Programming & Semantics, in honour of Bill Wadge on the occasion of his 60th cycle
No-slip boundary conditions for electron hydrodynamics and the thermal Casimir pressure
Creators: name: Hannemann, Mandy
name: Wegner, Gino
name: Henkel, Carsten
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We derive modified reflection coefficients for electromagnetic waves in the THz and far infrared range. The idea is based on hydrodynamic boundary conditions for metallic conduction electrons. The temperature-dependent part of the Casimir pressure between metal plates is evaluated. The results should shed light on the "thermal anomaly" where measurements deviate from the standard fluctuation electrodynamics for conducting metals.
description: 27 pages, 6 figures, v2 contains figure 1 replaced with experimental data
The SOPHIE search for northern extrasolar planets -- XVII. A wealth of new objects: Six cool Jupiters, three brown dwarfs, and 16 low-mass binary stars
Creators: name: Dalal, S.
name: Kiefer, F.
name: Hébrard, G.
name: Sahlmann, J.
name: Sousa, S. G.
name: Forveille, T.
name: Delfosse, X.
name: Arnold, L.
name: Astudillo-Defru, N.
name: Bonfils, X.
name: Boisse, I.
name: Bouchy, F.
name: Bourrier, V.
name: Brugger, B.
name: Cortés-Zuleta, P.
name: Deleuil, M.
name: Demangeon, O. D. S.
name: Díaz, R. F.
name: Hara, N. C.
name: Heidari, N.
name: Hobson, M. J.
name: Lopez, T.
name: Lovis, C.
name: Martioli, E.
name: Mignon, L.
name: Mousis, O.
name: Moutou, C.
name: Rey, J.
name: Santerne, A.
name: Santos, N. C.
name: Ségransan, D.
name: Strøm, P. A.
name: Udry, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Distinguishing classes within substellar objects and understanding their formation and evolution need larger samples of substellar companions such as exoplanets, brown dwarfs, and low-mass stars. In this paper, we look for substellar companions using radial velocity surveys of FGK stars with the SOPHIE spectrograph at the Observatoire de Haute-Provence. We assign here the radial velocity variations of 27 stars to their orbital motion induced by low-mass companions. We also constrained their plane-of-the-sky motion using HIPPARCOS and Gaia Data Release 1 measurements, which constrain the true masses of some of these companions. We report the detection and characterization of six cool Jupiters, three brown dwarf candidates, and 16 low-mass stellar companions. We additionally update the orbital parameters of the low-mass star HD 8291 B, and we conclude that the radial velocity variations of HD 204277 are likely due to stellar activity despite resembling the signal of a giant planet. One of the new giant planets, BD+631405 b, adds to the population of highly eccentric cool Jupiters, and it is presently the most massive member. Two of the cool Jupiter systems also exhibit signatures of an additional outer companion. The orbital periods of the new companions span 30 days to 11.5 years, their masses 0.72 Jupiter mass to 0.61 Solar mass, and their eccentricities 0.04 to 0.88. These discoveries probe the diversity of substellar objects and low-mass stars, which will help constrain the models of their formation and evolution.
description: 27 pages, 14 figures, 13 tables, Accepted in A&A
The formation and properties of coherent flocs in fibre suspensions
Creators: name: Soszyński, Robert Marian
Publisher: name: University of British Columbia
Year: 2010

description: Fibres in concentrated suspensions are in continuous contact with other fibres and may interlock through elastic bending to form coherent networks. Such interlocking is termed Type-C cohesion. The process by which Type-C cohesion forms among fibres and the resulting structure and tensile strength of individual floes of fibres have been examined in experimental study in which relatively straight, smooth nylon (6-6) fibres of aspect ratios from 65 to 189 were suspended in aqueous-sugar solutions. The fibres were in most cases neutrally buoyant. The suspensions were caused to flow in a partially filled, inclined-to-the-horizontal or horizontally-oriented cylinder rotated about its principal axis to produce a recirculating and moderately unsteady flow. At a well-defined and reproducible "threshold concentration" Type-C coherent floes formed. The floes were verified to be of Type-C by heat treatment. The heat treatment caused stress relaxation in elastically bent fibres resulting in reduced floe strength. Visual observations of floe formation and velocity measurements with Laser Doppler Anemometer indicated that the floes originated in the zone in which flow decelerated. In this zone floes formed by compaction of crowded fibres. The threshold concentration depended on fibre geometry and viscosity of the suspending liquid. Below an aspect ratio of approximately 50 and above a suspending liquid viscosity of approximately 0.013 Pa‧s, Type-C coherent floes did not form at any concentration of fibres. Under the test conditions of this work, the threshold concentration was unaffected by the cylinder rotational speed, cylinder diameter, and angle of incline to the horizontal, provided that sufficient shear was induced in the cylinder to create recirculating flow. The structure and strength of Type-C coherent floes were examined. The number of contact points per fibre was less than values estimated from theoretical, statistical models in the literature. The tensile strength of individual Type-C floes measured in a tester with a unique comb support showed values larger than strengths reported in the literature for either man-made or wood-pulp fibre networks. A mathematical model developed to describe tensile strength based on frictional fibre-to-fibre interaction accounted for only a part of the total floe strength.