cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Branching random walk in the presence of a hard wall
Creators: name: Roy, Rishideep
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J80, 60G15, 60G70

description: We consider a branching random walk on a $d$-ary tree of height $n$ ($n \in \mathbb{N}$), under the presence of a hard wall which restricts each value to be positive, where $d$ is a natural number satisfying $d\geqslant2$. The question of behaviour of Gaussian processes with long range interactions, for example the discrete Gaussian free field, under the condition that it is positive on a large subset of {\color{blue}vertices}, and a relation with the expected maximum of the processes has been observed. We find the probability of the event that the branching random {\color{blue}walk} is positive at every vertex in the $n^{th}$ generation, and show that the conditional expectation of the Gaussian variable at a typical vertex, under positivity, is less than the expected maximum by order of $\log n$.
description: 16 pages, 3 figures
Another proof of Wilmes' conjecture
Creators: name: Hopkins, Sam
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05E40, 05C25, 13D02, 06B30

description: We present a new proof of the monomial case of Wilmes' conjecture, which gives a formula for the coarsely-graded Betti numbers of the G-parking function ideal in terms of maximal parking functions of contractions of G. Our proof is via poset topology and relies on a theorem of Gasharov, Peeva, and Welker that connects the Betti numbers of a monomial ideal to the topology of its lcm-lattice.
description: 8 pages, 1 figure. v2: added reference to a recent preprint of Mohammadi and Shokrieh. v3: to appear in Discrete Math, v4,v5,v6: minor typos corrected
Hypercompe deflorata
Creators: name: Vincent, Benoît
name: Laguerre, Michel
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Arctiidae
Hypercompe
Hypercompe deflorata

description: Hypercompe deflorata (Fabricius, 1775)
Bombyx deflorata Fabricius, 1775: 582.
Hypercompe deflorata – Watson & Goodger 1986: 30.
Ecpantheria persola Möschler, 1886: 33, n. syn.
Hypercompe persola – Watson & Goodger 1986: 30.
ARGUMENTAIRE TAXONOMIQUE
Bombyx deflorata Fabricius, 1775 est décrit sur une série indéterminée de syntypes provenant d’Amérique. La localisation très imprécise de cette espèce ainsi que le fait que la série typique a longtemps été considérée comme perdue, a donné lieu à beaucoup d’interprétations sur l’identité exacte de ce taxon. Fabricius (1775) indique que les spécimens se trouvent dans la collection Hunter. Fabricius a rencontré William Hunter, physicien et anatomiste anglais, lors de sa dernière visite en Angleterre en 1767 (Zimsen 1964). C’est ainsi que beaucoup d’espèces décrites par Fabricius en 1775 proviennent de la collection Hunter, parfaitement conservée au sein du « Hunterian Museum and Art Gallery » de Glasgow. Deux spécimens syntypes de B. deflorata ont ainsi pu être localisés.Ils permettent d’identifier sans ambiguïté ce taxon qui correspond en fait à l’espèce Hypercompe persola (Möschler, 1886) décrite de Jamaïque. Nous proposons donc cette synonymie.
description: Published as part of Vincent, Benoît & Laguerre, Michel, 2013, Changements nomenclaturaux chez les Arctiinae nÉotropicales (Insecta, Lepidoptera, Erebidae); seconde partie, pp. 425-455 in Zoosystema 35 (3) on page 447, DOI: 10.5252/z2013n3a5, http://zenodo.org/record/5165260
On a boundary integral solution of a lateral planar Cauchy problem in elastodynamics
Creators: name: Chapko, Roman
name: Johansson, B. Tomas
name: Mindrinos, Leonidas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: A boundary integral based method for the stable reconstruction of missing boundary data is presented for the governing hyperbolic equation of elastodynamics in annular planar domains. Cauchy data in the form of the solution and traction is reconstructed on the inner boundary curve from the similar data given on the outer boundary. The ill-posed data reconstruction problem is reformulated as a sequence of boundary integral equations using the Laguerre transform with respect to time and employing a single-layer approach for the stationary problem. Singularities of the involved kernels in the integrals are analysed and made explicit, and standard quadrature rules are used for discretisation. Tikhonov regularization is employed for the stable solution of the obtained linear system. Numerical results are included showing that the outlined approach can be turned into a practical working method for finding the missing data.
description: 26 pages, 2 Figures, 8 Tables
Quantifying morphologies of developing neuronal cells using deep learning with imperfect annotations
Creators: name: Nourollah, Amir Masoud
name: Hassanpour, Hamid
name: Zehtabian, Amin
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: Neuronal Morphologies
subject: Fluorescence Microscopy
subject: Neuron Segmentation
subject: Deep Learning
subject: Imperfect Annotation
subject: Weak Supervision
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: The functionality of human intelligence relies on the interaction and health of neurons, hence, quantifying neuronal morphologies can be crucial for investigating the functionality of the human brain. This paper proposes a deep learning (DL) based method for segmenting and quantifying neuronal structures in fluorescence microscopy images of developing neuronal cells cultured in vitro. Compared to the majority of supervised DL-based segmentation methods that heavily rely on creating exact corresponding masks of neuronal structures for the preparation of training samples, the proposed approach allows for imperfect annotation of neurons, as it only requires tracing the centrelines of the neurites. This ability accelerates the preparation of training data by several folds. Our proposed framework is built on a modified version of PSPNet with an EfficientNet backbone pre-trained on the CityScapes dataset. To handle the imperfectness of training samples, we incorporated a weighted combination of two loss functions, namely the Dice loss and Lovász loss functions, into our network. We evaluated the proposed framework and several other state-of-the-art methods on a published dataset of approximately 900 manually quantified cultured mouse neurons. Our results indicate a close correlation between the proposed method and manual quantification in terms of neuron length and the number of branches while demonstrating improved analysis speed. Furthermore, the proposed method achieved high accuracy in neuron segmentation, as evidenced by the evaluation of the neurons’ length and number of branches.
Intrinsic channel closing in strong-field single ionization of H2
Creators: name: Pieper, Stefan
name: Lein, Manfred
Publisher: name: arXiv
Year: 2007
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The ionization of H2 in intense laser pulses is studied by numerical integration of the time-dependent Schrödinger equation for a single-active-electron model including the vibrational motion. The electron kinetic-energy spectra in high-order above-threshold ionization are strongly dependent on the vibrational quantum number of the created H2+ ion. For certain vibrational states, the electron yield in the mid-plateau region is strongly enhanced. The effect is attributed to channel closings, which were previously observed in atoms by varying the laser intensity.
description: 11 pages, LaTeX; changed content
Hypercompe obsolescens
Creators: name: Vincent, Benoît
name: Laguerre, Michel
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Arctiidae
Hypercompe
Hypercompe obsolescens

description: Hypercompe obsolescens (Hampson, 1916)
Ecpantheria obsolescens Hampson, 1916: 238.
Hypercompe obsolescens – Watson & Goodger 1986: 30.
Ecpantheria testacea Rothschild, 1910: 173, n. syn.
Hypercompe testacea – Watson & Goodger 1986: 30.
Hypercompe mielkei Watson & Goodger, 1986: 30. Nom de remplacement non nécessaire pour testacea Rothschild, 1910: 173.
ARGUMENTAIRE TAXONOMIQUE
Ecpantheria testacea Rothschild, 1910 est décrit sur une série de 14 males et cinq femelles syntypes provenant de diverses régions du Pérou. Cette série est conservée, à peu près complète, au BMNH où un spécimen mâle de La Oroya (État du Puno) porte une étiquette TYPE. Hampson (1916) décrit de Yahuarmayo (État du Puno), l’espèce E. obsolescens dont un couple de spécimens syntypes est conservé au BMNH. Or, un examen des syntypes de E. testacea Rothschild, 1910 et E. obsolescens Hampson, 1916 montre qu’il s’agit de la même espèce. Précisons que Watson & Goodger (1986), remplacent le nom H. testacea par celui de H. mielkei. En effet, H. testacea est préoccupé par H. testacea (Rothschild, 1909). Le nom de remplacement H. mielkei n’est plus nécessaire car le nom H. obsolescens est disponible suite à la synonymie que nous proposons.
description: Published as part of Vincent, Benoît & Laguerre, Michel, 2013, Changements nomenclaturaux chez les Arctiinae nÉotropicales (Insecta, Lepidoptera, Erebidae); seconde partie, pp. 425-455 in Zoosystema 35 (3) on page 448, DOI: 10.5252/z2013n3a5, http://zenodo.org/record/5165260
On Fano and weak Fano Bott-Samelson-Demazure-Hansen varieties
Creators: name: Chary, B. Narasimha
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14F17, 14M15

description: Let $G$ be a simple algebraic group over the field of complex numbers. Fix a maximal torus $T$ and a Borel subgroup $B$ of $G$ containing $T$. Let $w$ be an element of the Weyl group $W$ of $G$, and let $Z(\tilde w)$ be the Bott-Samelson-Demazure-Hansen (BSDH) variety corresponding to a reduced expression $\tilde w$ of $w$ with respect to the data $(G, B, T)$. In this article we give complete characterization of the expressions $\tilde w$ such that the corresponding BSDH variety $Z(\tilde w)$ is Fano or weak Fano. As a consequence we prove vanishing theorems of the cohomology of tangent bundle of certain BSDH varieties and hence we get some local rigidity results.
description: Accepted in Journal of Pure and Applied Algebra
Dissipative dynamics of a driven quantum spin coupled to a bath of ultracold fermions
Creators: name: Knap, Michael
name: Abanin, Dmitry A.
name: Demler, Eugene
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We explore the dynamics and the steady state of a driven quantum spin coupled to a bath of fermions, which can be realized with a strongly imbalanced mixture of ultracold atoms using currently available experimental tools. Radio-frequency driving can be used to induce tunneling between the spin states. The Rabi oscillations are modified due to the coupling of the quantum spin to the environment, which causes frequency renormalization and damping. The spin-bath coupling can be widely tuned by adjusting the scattering length through a Feshbach resonance. When the scattering potential creates a bound state, by tuning the driving frequency it is possible to populate either the ground state, in which the bound state is filled, or a metastable state in which the bound state is empty. In the latter case, we predict an emergent inversion of the steady-state magnetization. Our work shows that different regimes of dissipative dynamics can be explored with a quantum spin coupled to a bath of ultracold fermions.
description: 5 pages, 4 figures, plus supplemental material
Machine learning reveals the waggle drift’s role in the honey bee dance communication system
Creators: name: Dormagen, David M.
name: Wild, Benjamin
name: Wario, Fernando
name: Landgraf, Tim
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: animal behavior
subject: entomology
subject: Apis mellifera
subject: machine learning
subject: neural networks
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: The honey bee waggle dance is one of the most prominent examples of abstract communication among animals: successful foragers convey new resource locations to interested followers via characteristic “dance” movements in the nest, where dances advertise different locations on different overlapping subregions of the “dance floor.” To this day, this spatial separation has not been described in detail, and it remains unknown how it affects the dance communication. Here, we evaluate long-term recordings of Apis mellifera foraging at natural and artificial food sites. Using machine learning, we detect and decode waggle dances, and we individually identify and track dancers and dance followers in the hive and at artificial feeders. We record more than a hundred thousand waggle phases, and thousands of dances and dance-following interactions to quantitatively describe the spatial separation of dances on the dance floor. We find that the separation of dancers increases throughout a dance and present a motion model based on a positional drift of the dancer between subsequent waggle phases that fits our observations. We show that this separation affects follower bees as well and results in them more likely following subsequent dances to similar food source locations, constituting a positive feedback loop. Our work provides evidence that the positional drift between subsequent waggle phases modulates the information that is available to dance followers, leading to an emergent optimization of the waggle dance communication system.
Requirements for Robust Natural Language Interfaces: The LanguageCraft and XCALIBUR experiences
Creators: name: Carbonell, Jaime G.
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Natural Language interfaces to data bases and expert systems require the integration of several crucial capabilities in order to be judged habitable by their end users and productive by the developers of applications. User habitability is measured in terms of linguistic coverage, robustness of behavior and speed of response, whereas implementer productivity is measured by the amount of effort required to connect the interface to a new application, to develop its syntactic and semantic grammar, and to test and test and debug the resultant system assuring a certain level of performance• These latter criteria have not been addressed directly by natural language researchers in pure laboratory settings, with the exception of user-defined extensions to an existing interface (e.g., NanoKLAUS [4], vex [6]). But, in order to amortize the cost of developing practical, robust and efficient interfaces over multiple applications, the implementer productivity requirements are as important as user habitability. We treat each set of criteria in turn, drawing from our experience in XCALIBUR [2] and in LanguageCraft TM [5], a commercially available environment and run time module for rapid development of domain-oriented natural language interfaces. In our discussion we distill the general lessons accrued from several years of experience using these systems, and conducting several small-scale user studies.
On the Non-Linear Integral Equation Approach for an Inverse Boundary Value Problem for the Heat Equation
Creators: name: Chapko, Roman
name: Mindrinos, Leonidas
Publisher: name: arXiv
Year: 2019
Subjects: subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider the inverse problem of reconstructing the interior boundary curve of a doubly connected domain from the knowledge of the temperature and the thermal flux on the exterior boundary curve. The use of the Laguerre transform in time leads to a sequence of stationary inverse problems. Then, the application of the modified single-layer ansatz, reduces the problem to a sequence of systems of non-linear boundary integral equations. An iterative algorithm is developed for the numerical solution of the obtained integral equations. We find the Fréchet derivative of the corresponding integral operator and we show the unique solvability of the linearized equation. Full discretization is realized by a trigonometric quadrature method. Due to the inherited ill-possedness of the derived system of linear equations we apply the Tikhonov regularization. The numerical results show that the proposed method produces accurate and stable reconstructions.
description: 16 pages, 3 figures
Absolute kinematics of radio source components in the complete S5 polar cap sample. III. First wide-field high-precision astrometry at 15.4 GHz
Creators: name: Marti-Vidal, I.
name: Marcaide, J. M.
name: Guirado, J. C.
name: Perez-Torres, M. A.
name: Ros, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the first wide-field, high-precision astrometric analysis of the 13 extragalactic radio sources of the complete S5 polar cap sample at 15.4 GHz. We describe new algorithms developed to enable the use of differenced phase delays in wide-field astrometric observations and discuss the impact of using differenced phase delays on the precision of the wide-field astrometric analysis. From this global fit, we obtained estimates of the relative source positions with precisions ranging from 14 to 200 $μ$as at 15.4 GHz, depending on the angular separation of the sources (from $\sim$1.6 to $\sim$20.8 degrees). These precisions are $\sim$10 times higher than the achievable precisions using the phase-reference mapping technique.
description: 9 pages, 7 figures
Iodine-enabled organoelectrocatalysis: enantioselective cross dehydrogenative coupling of sulfides and aldehydes
Creators: name: Wang, Zhen
name: Gausmann, Marcel
name: Dickoff, Jan-Hendrik
name: Christmann, Mathias
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: organoelectrocatalysis
subject: Iodine-enabled
subject: aldehydes
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: A method for the direct asymmetric α-sulfenylation of aldehydes with sulfides was developed. By merging electrochemistry and asymmetric organocatalysis, we obtained α-sulfenylated aldehydes with good to excellent enantioselectivities. Mechanistic investigations indicated a pivotal role of iodine as a catalytic mediator, not only facilitating redox transformations but also possibly contributing to the formation of sulfenyl iodide (RSI) intermediates derived from electrochemically generated disulfides. Our metal-free protocol offers a sustainable and efficient route to access a wide array of α-sulfenylated aldehydes. Remarkably, these transformations take place at room temperature, obviating the need for additional stoichiometric oxidants, thus exemplifying an environmentally friendly and practical synthetic strategy.
Deep Learning with Lung Segmentation and Bone Shadow Exclusion Techniques for Chest X-Ray Analysis of Lung Cancer
Creators: name: Gordienko, Yu.
name: Gang, Peng
name: Hui, Jiang
name: Zeng, Wei
name: Kochura, Yu.
name: Alienin, O.
name: Rokovyi, O.
name: Stirenko, S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The recent progress of computing, machine learning, and especially deep learning, for image recognition brings a meaningful effect for automatic detection of various diseases from chest X-ray images (CXRs). Here efficiency of lung segmentation and bone shadow exclusion techniques is demonstrated for analysis of 2D CXRs by deep learning approach to help radiologists identify suspicious lesions and nodules in lung cancer patients. Training and validation was performed on the original JSRT dataset (dataset #01), BSE-JSRT dataset, i.e. the same JSRT dataset, but without clavicle and rib shadows (dataset #02), original JSRT dataset after segmentation (dataset #03), and BSE-JSRT dataset after segmentation (dataset #04). The results demonstrate the high efficiency and usefulness of the considered pre-processing techniques in the simplified configuration even. The pre-processed dataset without bones (dataset #02) demonstrates the much better accuracy and loss results in comparison to the other pre-processed datasets after lung segmentation (datasets #02 and #03).
description: 10 pages, 7 figures; The First International Conference on Computer Science, Engineering and Education Applications (ICCSEEA2018) (www.uacnconf.org/iccseea2018) (accepted)
Hypercompe mus
Creators: name: Vincent, Benoît
name: Laguerre, Michel
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Arctiidae
Hypercompe
Hypercompe mus

description: Hypercompe mus (Oberthür, 1881)
Ecpantheria mus Oberthür, 1881: 109.
Hypercompe mus – Watson & Goodger 1986: 30.
Ecpantheria bahiaensis Oberthür, 1881: 109, n. syn.
Hypercompe bahiaensis – Watson & Goodger 1986: 30.
Ecpantheria boisduvali Oberthür, 1881: 110, n. syn.
Hypercompe boisduvali – Watson & Goodger 1986: 30.
ARGUMENTAIRE TAXONOMIQUE
Oberthür (1881) dans sa révision du genre Ecpantheria Hübner, 1820, devenu Hypercompe suite à une décision de la Commission Internationale de Nomenclature Zoologique (1966: 213), publie de nombreuses nouvelles espèces, la plupart du temps sans description précise mais toujours avec une excellente figure en noir et blanc. La majorité des spécimens types sont conservés au BMNH, avec épinglés sous chacun de ces spécimens, la figure en noir et blanc, découpée dans une planche de la publication originale. Oberthür (1881) décrit notamment H. mus du Brésil et figure un spécimen mâle. Il décrit ensuite H. bahaiensis de l’État du Bahia et H. boisduvali des États du Bahia et du Pernambuco au Brésil, en figurant un spécimen femelle pour chacun. Hampson (1901) puis Watson & Goodger (1986) considèrent ces deux taxons comme des femelles de l’espèce H. heterogena (Oberthür, 1881) décrite également du Brésil et figurée par un spécimen mâle. Cette interprétation est invalide, car H. heterogena est une espèce très particulière avec l’apex des ailes antérieures très pointu et des antennes bipectinées très longue. Par comparaison, H. mus présente des ailes antérieures avec l’apex arrondi et des antennes courtes. D’autre part, les femelles décrites pour les taxons bahaiensis et boisduvali ne diffèrent en rien des femelles connues de H. mus, qui est une espèce assez dimorphique dont Oberthür n’avait pas reconnu la femelle. Hypercompe mus, H. bahaiensis et H. boisduvali correspondent à la même espèce, ellemême différente d’ H. heterogena. Nous proposons donc ces synonymies.
description: Published as part of Vincent, Benoît & Laguerre, Michel, 2013, Changements nomenclaturaux chez les Arctiinae nÉotropicales (Insecta, Lepidoptera, Erebidae); seconde partie, pp. 425-455 in Zoosystema 35 (3) on page 448, DOI: 10.5252/z2013n3a5, http://zenodo.org/record/5165260
Coaching in communication skills: Online learning using e-micromodules
Creators: name: Lee, Chien Ching
Publisher: name: Singapore Institute of Technology
Year: 2022
Subjects: Curriculum and pedagogy theory and development

description: The National Association of Colleges and Employers (NACE) has identified communication as a key core competence required for success in the workplace (2021). In the university curriculum, module assessments related to this objective range from teaching students written skills like writing proposals, and reports to spoken skills like interpersonal skills, and public speaking. These are often conducted in face-to-face classrooms where after brief turns of instruction, students could receive personalized coaching on their areas of weakness. However, the effects of this instruction seldom go beyond the duration of the module.The Singapore Institute of Technology thus embarked on curating six original e-micromodules based on students' needs to support students in the flow of their work during their internship and studies, in a more permanent manner using the blended learning approach. This presentation investigates one of these e-modules (i.e. the Interpersonal Skills e-module) to determine whether it was effective in improving students’ communication skills in six areas.
UV-Continuum Slopes of >4000 z~4-8 Galaxies from the HUDF/XDF, HUDF09, ERS, CANDELS-South, and CANDELS-North Fields
Creators: name: Bouwens, R. J.
name: Illingworth, G. D.
name: Oesch, P. A.
name: Labbe, I.
name: van Dokkum, P. G.
name: Trenti, M.
name: Franx, M.
name: Smit, R.
name: Gonzalez, V.
name: Magee, D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We measure the UV-continuum slope beta for over 4000 high-redshift galaxies over a wide range of redshifts z~4-8 and luminosities from the HST HUDF/XDF, HUDF09-1, HUDF09-2, ERS, CANDELS-N, and CANDELS-S data sets. Our new beta results reach very faint levels at z~4 (-15.5 mag: 0.006 L*(z=3)), z~5 (-16.5 mag: 0.014L*(z=3)), and z~6 and z~7 (-17 mag: 0.025 L*(z=3)). Inconsistencies between previous studies led us to conduct a comprehensive review of systematic errors and develop a new technique for measuring beta that is robust against biases that arise from the impact of noise. We demonstrate, by object-by-object comparisons, that all previous studies, including our own and those done on the latest HUDF12 dataset, suffer from small systematic errors in beta. We find that after correcting for the systematic errors (typically d(beta) ~0.1-0.2) all beta results at z~7 from different groups are in excellent agreement. The mean beta we measure for faint (-18 mag: 0.1L*(z=3)) z~4, z~5, z~6, and z~7 galaxies is -2.03+/-0.03+/-0.06 (random and systematic errors), -2.14+/-0.06+/-0.06, -2.24+/-0.11+/-0.08, and -2.30+/-0.18+/-0.13, respectively. Our new beta values are redder than we have reported in the past, but bluer than other recent results. Our previously reported trend of bluer beta's at lower luminosities is confirmed, as is the evolution to bluer beta's at high redshifts. beta appears to show only a mild luminosity dependence faintward of M(UV,AB) ~ -19 mag, suggesting that the mean beta asymptotes to ~ -2.2 to -2.4 for faint z>~4 galaxies. At z~7, the observed beta's suggest non-zero, but low dust extinction, and they agree well with values predicted in cosmological hydrodynamical simulations.
description: 41 pages, 28 figures, 9 tables, accepted for publication in the Astrophysical Journal, makes use of the full 10-epochs of CANDELS North data
The first cotangent cohomology module for matroids
Creators: name: Brehm, William
name: Constantinescu, Alexandru
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: Matroid
subject: cotangent cohomology
subject: Stanley–Reisner ring
subject: 500 Naturwissenschaften und Mathematik::510 Mathematik::510 Mathematik

description: We find a combinatorial formula which computes the first cotangent cohomology module of Stanley–Reisner rings associated to matroids. For arbitrary simplicial complexes we provide upper bounds for the dimensions of the multigraded components of T1. For specific degrees we prove that these bounds are reached if and only if the simplicial complex is a matroid, obtaining thus a new characterization for matroids. Furthermore, the graded first cotangent cohomology turns out to be a complete invariant for nondiscrete matroids.
MetaMT,a MetaLearning Method Leveraging Multiple Domain Data for Low Resource Machine Translation
Creators: name: Li, Rumeng
name: Wang, Xun
name: Yu, Hong
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Manipulating training data leads to robust neural models for MT.
Observations of upward propagating waves in the transition region and corona above Sunspots
Creators: name: Hou, Zhenyong
name: Huang, Zhenghua
name: Xia, Lidong
name: Li, Bo
name: Fu, Hui
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present observations of persistent oscillations of some bright features in the upper-chromosphere/transition-region above sunspots taken by IRIS SJ 1400 Å and upward propagating quasi-periodic disturbances along coronal loops rooted in the same region taken by AIA 171 Å passband. The oscillations of the features are cyclic oscillatory motions without any obvious damping. The amplitudes of the spatial displacements of the oscillations are about 1 $^{"}$. The apparent velocities of the oscillations are comparable to the sound speed in the chromosphere, but the upward motions are slightly larger than that of the downward. The intensity variations can take 24-53% of the background, suggesting nonlinearity of the oscillations. The FFT power spectra of the oscillations show dominant peak at a period of about 3 minutes, in consistent with the omnipresent 3 minute oscillations in sunspots. The amplitudes of the intensity variations of the upward propagating coronal disturbances are 10-15% of the background. The coronal disturbances have a period of about 3 minutes, and propagate upward along the coronal loops with apparent velocities in a range of 30-80 km/s. We propose a scenario that the observed transition region oscillations are powered continuously by upward propagating shocks, and the upward propagating coronal disturbances can be the recurrent plasma flows driven by shocks or responses of degenerated shocks that become slow magnetic-acoustic waves after heating the plasma in the coronal loops at their transition-region bases.
description: 13 pages, 9 figures, accepted for publication in ApJ
Lattice QCD study of $g_A^{N^*N^*}$ with two flavors of dynamical quarks
Creators: name: Takahashi, T. T.
name: Kunihiro, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We report the first lattice QCD result of the axial charge of N(1535), $g_A^{N^*N^*}$. The measurement is performed with two flavors of dynamical quarks employing the renormalization-group improved gauge action at $β$=1.95 and the mean-field improved clover quark action with the hopping parameters, $κ$=0.1375, 0.1390 and 0.1400. In order to avoid the signal contaminations by N(1650) lying just 100 MeV above N(1535), we construct 2$\times$2 correlation matrices and diagonalize them so that clear signal separation can be found. The wraparound contributions in the correlator, which can be another source of signal contamination, are eliminated by imposing the Dirichlet boundary condition in the temporal direction. We find that the axial charge of N(1535) takes small values as $g_A^{N^*N^*}\sim 0.2$, independent of quark masses, in the pion-mass range of 0.7 to 1.1 GeV.
description: proceedings of the 11th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon September 10-14, 2007 IKP, Forschungzentrum Juelich, Germany
title: 02_1627
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Requirements for Automatically Generating Multi-Modal Interfaces for Complex Appliances
Creators: name: Nichols, Jeffrey
name: Myers, Brad
name: Harris, Thomas K
name: Rosenfeld, Roni
name: Shriver, Stefanie
name: Higgins, Michael
name: Hughes, Joseph
Publisher: name: Carnegie Mellon University
Year: 2002
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Several industrial and academic research groups are working to simplify the control of appliances and services by creating a truly universal remote control. Unlike the preprogrammed remote controls available today, these new controllers download a specification from the appliance or service and use it to automatically generate a remote control interface. This promises to be a useful approach because the specification can be made detailed enough to generate both speech and graphical interfaces. Unfortunately, generating good user interfaces can be difficult. Based on user studies and prototype implementations, this paper presents a set of requirements that we have found are needed for automatic interface generation systems to create high-quality user interfaces.
Mallocephala rhodosoma Vincent & Laguerre 2013
Creators: name: Vincent, Benoît
name: Laguerre, Michel
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Arctiidae
Mallocephala
Mallocephala rhodosoma

description: Mallocephala rhodosoma(Hampson, 1907)
n. comb.
Antarctia rhodosoma Hampson, 1907: 239 .
description: Published as part of Vincent, Benoît & Laguerre, Michel, 2013, Changements nomenclaturaux chez les Arctiinae nÉotropicales (Insecta, Lepidoptera, Erebidae); seconde partie, pp. 425-455 in Zoosystema 35 (3) on page 449, DOI: 10.5252/z2013n3a5, http://zenodo.org/record/5165260
Overpartitions and Bressoud's conjecture, II
Creators: name: He, Thomas Y.
name: Ji, Kathy Q.
name: Zhao, Alice X. H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A17, 05A30, 11P84, 11P81, 33A65

description: The main objective of this paper is to present an answer to Bressoud's conjecture for the case $j=0$, resulting in a complete solution to the conjecture. The case for $j=1$ has been recently resolved by Kim. Using the connection established in our previous paper between the ordinary partition function $B_0$ and the overpartition function $\overline{B}_1$, we found that the proof of Bressoud's conjecture for the case $j=0$ is equivalent to establishing an overpartition analogue of the conjecture for $j=1$. By generalizing Kim's method, we obtain the desired overpartition analogue of Bressoud's conjecture for $j=1$, which eventually enables us to confirm Bressoud's conjecture for the case $j=0$.
Cooler and drier conditions increase parasitism in a subtropical damselfly population
Creators: name: Paul, Shatabdi
name: Rayhan, Mostakim
name: Herberstein, Marie E.
name: Khan, Md Kawsar
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: climate change
subject: host–pathogen interactions
subject: insect decline
subject: seasonal variation
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Host–parasite interactions are impacted by climate, which may result in variation of parasitism across landscapes and time. Understanding how parasitism varies across these spatio-temporal scales is crucial to predicting how organisms will respond to and cope under a rapidly changing climate. Empirical work on how parasitism varies across climates is limited. Here, we examine the variation of parasitism across seasons and identify the likely climatic factors that explain this variation using Agriocnemis femina damselflies and Arrenurus water mite ectoparasites as a host–parasite study system. We assessed parasitism in a natural population in Sylhet, Bangladesh which is located in subtropical climate between 2021 and 2023. We calculated prevalence (proportion of infected individuals) and intensity (the number of parasites on an infected individual) of parasitism across different seasons. Parasite prevalence and intensity were greater during cooler seasons (autumn and winter) compared to hotter seasons (spring and summer). Mean temperature and precipitation were negatively correlated with parasite prevalence, whereas only mean precipitation was negatively correlated with parasite intensity. Tropical, subtropical and mediterranean regions are predicted to experience extreme climatic events (extreme temperature, less precipitation and frequent drought) as a consequence of anthropogenic climate change, and our finding suggests that this might alter patterns of parasitism in aquatic insects.
Representing Topological Structures Using Cell-Chains
Creators: name: Cardoze, David E.
name: Miller, Gary L.
name: Phillips, Todd
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: A new topological representation of surfaces in higher dimensions, “cell-chains” is developed. The representation is a generalization of Brisson’s cell-tuple data structure. Cell-chains are identical to cell-tuples when there are no degeneracies: cells or simplices with identified vertices. The proof of correctness is based on axioms true for maps, such as those in Brisson’s cell-tuple representation. A critical new condition (axiom) is added to those of Lienhardt’s n-G-maps to give “cell-maps”. We show that cell-maps and cell-chains characterize the same topological representations.
Representing the MSR Cryptoprotocol Specification Language in an Extension of Rewriting Logic with Dependent Types
Creators: name: Iliano Cervesato
name: Mark-Oliver  Stehr
Publisher: name: Carnegie Mellon University
Year: 1973
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: This paper presents a shallow and efficient embedding of the security protocol specification language MSR into an extension of rewriting logic with dependent types. The latter is an instance of the open calculus of constructions which integrates key concepts from equational logic, rewriting logic, and type theory.MSR is based on a form of first-order multiset rewriting extended with existential name generation and a flexible type infrastructure centered on dependent types with subsorting. The encoding presented in this paper has served as the basis for the implementation of an MSR specification and analysis environment using the first-order rewriting engine Maude.
Reconstructing the Optical Parameters of a Layered Medium with Optical Coherence Elastography
Creators: name: Elbau, Peter
name: Mindrinos, Leonidas
name: Veselka, Leopold
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this work we consider the inverse problem of reconstructing the optical properties of a layered medium from an elastography measurement where optical coherence tomography is used as the imaging method. We hereby model the sample as a linear dielectric medium so that the imaging parameter is given by its electric susceptibility, which is a frequency- and depth-dependent parameter. Additionally to the layered structure (assumed to be valid at least in the small illuminated region), we allow for small scatterers which we consider to be randomly distributed, a situation which seems more realistic compared to purely homogeneous layers. We then show that a unique reconstruction of the susceptibility of the medium (after averaging over the small scatterers) can be achieved from optical coherence tomography measurements for different compression states of the medium.
description: 19 pages, 1 figure
Semidiurnal thermal tides in asynchronously rotating hot Jupiters
Creators: name: Auclair-Desrotour, Pierre
name: Leconte, Jérémy
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences
subject: 85-02

description: Thermal tides can torque the atmosphere of hot Jupiters into asynchronous rotation, while these planets are usually assumed to be locked into spin-orbit synchronization with their host star. In this work, our goal is to characterize the tidal response of a rotating hot Jupiter to the tidal semidiurnal thermal forcing of its host star, by identifying the structure of tidal waves responsible for variation of mass distribution, their dependence on the tidal frequency and their ability to generate strong zonal flows. We develop an ab initio global modeling that generalizes the early approach of Arras & Socrates (2010) to rotating and non-adiabatic planets. We derive analytically the torque exerted on the body and the associated timescales of evolution, as well as the equilibrium tidal response of the atmosphere in the zero-frequency limit. Finally, we integrate numerically the equations of thermal tides for three cases including dissipation and rotation step by step. The resonances associated with tidally generated gravito-inertial waves amplify significantly the resulting tidal torque in the range 1-30 days. This torque can drive globally the atmosphere into asynchronous rotation, as its sign depends on the tidal frequency. The resonant behaviour of the tidal response is enhanced by rotation, which couples the forcing to several Hough modes in the general case, while the radiative cooling tends to regularize it and diminish its amplitude.
description: Accepted for publication in Astronomy & Astrophysics, 23 pages, 12 figures
Enhanced nearby and vanishing cycles in dimension one and Fourier transform
Creators: name: D'Agnolo, Andrea
name: Kashiwara, Masaki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Enhanced ind-sheaves provide a suitable framework for the irregular Riemann-Hilbert correspondence. In this paper, we give some precisions on nearby and vanishing cycles for enhanced perverse objects in dimension one. As an application, we give a topological proof of the following fact. Let $\mathcal M$ be a holonomic algebraic $\mathcal D$-module on the affine line, and denote by ${}^{\mathsf{L}}\mathcal M$ its Fourier-Laplace transform. For a point $a$ on the affine line, denote by $\ell_a$ the corresponding linear function on the dual affine line. Then, the vanishing cycles of $\mathcal M$ at $a$ are isomorphic to the graded component of degree $\ell_a$ of the Stokes filtration of ${}^{\mathsf{L}}\mathcal M$ at infinity.
description: 25 pages; final version before publication
Large N Volume Independence and an Emergent Fermionic Symmetry
Creators: name: Basar, Gokce
name: Cherman, Aleksey
name: Dorigoni, Daniele
name: Unsal, Mithat
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Large-N volume independence in circle-compactified QCD with N_f \geq 1 adjoint Weyl fermions implies the absence of any phase transitions as the radius is dialed to arbitrarily small values. This class of theories are believed to possess a Hagedorn density of hadronic states. It turns out that these properties are in apparent tension with each other, because a Hagedorn density of states typically implies a phase transition at some finite radius. This tension is resolved if there are degeneracies between the spectra of bosonic and fermionic states, as happens in the N_f=1 supersymmetric case. Resolution of the tension for N_f>1 then suggests the emergence of a fermionic symmetry at large N, where there is no supersymmetry. We can escape the Coleman-Mandula theorem since the N=\infty theory is free, with a trivial S-matrix. We show an example of such a spectral degeneracy in a non-supersymmetric toy example which has a Hagedorn spectrum.
description: 5 pages, 1 figure. v3: corrected typos, and added an important set of references to the idea of misaligned supersymmetry
Tuning electrocatalytic water oxidation by MnO x through the incorporation of abundant metal cations
Creators: name: Melder, Jens
name: Mebs, Stefan
name: Lessing, Florian
name: Dau, Holger
name: Kurz, Philipp
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: electrocatalytic water oxidation
subject: MnOx layers
subject: spectroscopy
subject: 500 Naturwissenschaften und Mathematik::530 Physik::539 Moderne Physik

description: Layered manganese oxides which were deposited on carbon fibre paper (MnOx/CFP) via a redox-deposition process show promising activities and stabilities for the OER over a very wide pH range. In the study presented here, the influence of the incorporation of metal cations (Mn+, M = Ca, Co, Ni, Fe) into MnOx layers on the OER performance at different pH values (2.5/7.0/14.0) is explored. Spectroscopic analyses of MyMnOx/CFP reveal that doping with other metal cations does not alter the basic birnessite-type MnOx structure. However, the average manganese oxidation state can be tuned and is found to depend on the incorporated metal cations. Furthermore, a clear dependence of the catalytic activity and stability on the incorporated metal ion is observed and especially Ni- and Co-doping lead to a significant performance boost under alkaline (Ni and Co) and neutral conditions (Co). A comparison to other state-of-the-art metal oxide catalysts (also deposited on CFP for comparison) shows that the metal-doped MyMnOx/CFP anodes are able to compete with the most active materials known so far.
Representing the MSR Cryptoprotocol Specification Language in an Extension of Rewriting Logic with Dependent Types
Creators: name: Iliano  Cervesato
name: Mark-Oliver  Stehr
Publisher: name: Carnegie Mellon University
Year: 1984
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: This paper presents a shallow and hence effcient embedding of the security protocol specifcation language MSR into rewriting logic with dependent types, an instance of the open calculus of constructions which integrates key concepts from equational logic, rewriting logic, and type theory. MSR is based on a form of first-order multiset rewriting extended with existential name generation and a flexible type infrastructure centered on dependent types with subsorting. This encoding is intended to serve as the basis for implementing an MSR specification and analysis environment using existing first-order rewriting engines such as Maude.