cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exchange-coupling constants, spin density map, and Q dependence of the inelastic neutron scattering intensity in single-molecule magnets
Creators: name: Waldmann, O.
name: Bircher, R.
name: Carver, G.
name: Sieber, A.
name: Güdel, H. U.
name: Mutka, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The Q dependence of the inelastic neutron scattering (INS) intensity of transitions within the ground-state spin multiplet of single-molecule magnets (SMMs) is considered. For these transitions, the Q dependence is related to the spin density map in the ground state, which in turn is governed by the Heisenberg exchange interactions in the cluster. This provides the possibility to infer the exchange-coupling constants from the Q dependence of the INS transitions within the spin ground state. The potential of this strategy is explored for the M = +-10 -> +- 9 transition within the S = 10 multiplet of the molecule Mn12 as an example. The Q dependence is calculated for powder as well as single-crystal Mn12 samples for various exchange-coupling situations discussed in the literature. The results are compared to literature data on a powder sample of Mn12 and to measurements on an oriented array of about 500 single-crystals of Mn12. The calculated Q dependence exhibits significant variation with the exchange-coupling constants, in particular for a single-crystal sample, but the experimental findings did not permit an unambiguous determination. However, although challenging, suitable experiments are within the reach of today's instruments.
description: 11 pages, 6 figures, REVTEX4, to appear in PRB
Wavelet Denoised-ResNet CNN and LightGBM Method to Predict Forex Rate of Change
Creators: name: Zhao, Yiqi
name: Khushi, Matloob
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Finance (q-fin.ST)
subject: FOS: Economics and business

description: Foreign Exchange (Forex) is the largest financial market in the world. The daily trading volume of the Forex market is much higher than that of stock and futures markets. Therefore, it is of great significance for investors to establish a foreign exchange forecast model. In this paper, we propose a Wavelet Denoised-ResNet with LightGBM model to predict the rate of change of Forex price after five time intervals to allow enough time to execute trades. All the prices are denoised by wavelet transform, and a matrix of 30 time intervals is formed by calculating technical indicators. Image features are obtained by feeding the maxtrix into a ResNet. Finally, the technical indicators and image features are fed to LightGBM. Our experiments on 5-minutes USDJPY demonstrate that the model outperforms baseline modles with MAE: 0.240977x10EXP-3 MSE: 0.156x10EXP-6 and RMSE: 0.395185x10EXP-3. An accurate price prediction after 25 minutes in future provides a window of opportunity for hedge funds algorithm trading. The code is available from https://mkhushi.github.io/
On the Exploitation of DCT-Traces in the Generative-AI Domain
Creators: name: Pontorno, Orazio
name: Guarnera, Luca
name: Battiato, Sebastiano
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Deepfakes represent one of the toughest challenges in the world of Cybersecurity and Digital Forensics, especially considering the high-quality results obtained with recent generative AI-based solutions. Almost all generative models leave unique traces in synthetic data that, if analyzed and identified in detail, can be exploited to improve the generalization limitations of existing deepfake detectors. In this paper we analyzed deepfake images in the frequency domain generated by both GAN and Diffusion Model engines, examining in detail the underlying statistical distribution of Discrete Cosine Transform (DCT) coefficients. Recognizing that not all coefficients contribute equally to image detection, we hypothesize the existence of a unique ``discriminative fingerprint", embedded in specific combinations of coefficients. To identify them, Machine Learning classifiers were trained on various combinations of coefficients. In addition, the Explainable AI (XAI) LIME algorithm was used to search for intrinsic discriminative combinations of coefficients. Finally, we performed a robustness test to analyze the persistence of traces by applying JPEG compression. The experimental results reveal the existence of traces left by the generative models that are more discriminative and persistent at JPEG attacks. Code and dataset are available at https://github.com/opontorno/dcts_analysis_deepfakes.
Information theoretic measures on quantum droplets in ultracold atomic systems
Creators: name: Siddik, Sk
name: Sekh, Golam Ali
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We consider Shannon entropy, Fisher information, Rényi entropy, and Tsallis entropy to study the quantum droplet phase in Bose-Einstein condensates. In the beyond mean-field description, the Gross-Pitaevskii equation with Lee-Huang-Yang correction gives a family of quantum droplets with different chemical potentials. At a larger value of chemical potential, quantum droplet with sharp-top probability density distribution starts to form while it becomes flat top for a smaller value of chemical potential. We show that entropic measures can distinguish the shape change of the probability density distributions and thus can identify the onset of the droplet phase. During the onset of droplet phase, the Shannon entropy decreases gradually with the decrease of chemical potential and attains a minimum in the vicinity where a smooth transition from flat-top to sharp-top QDs occurs. At this stage, the Shannon entropy increases abruptly with the lowering of chemical potential. We observe an opposite trend in the case of Fisher information. These results are found to be consistent with the Rényi and Tsallis entropic measures.
description: 8 pages, 6 figures
Femtosecond trimer quench cycled at megahertz rates in the unconventional charge-density wave material $1\textit{T'}-\text{TaTe}_2$
Creators: name: Domröse, Till
name: Ropers, Claus
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Ultrafast optical switching of materials properties is of great relevance both for future technological applications as well as gaining fundamental physical insights to microscopic couplings and nonequilibrium phenomena. Transition-metal dichalcogenides (TMDCs) combine photo-sensitivity with strong correlations, furthering rich phase diagrams and enhanced tunability. Owing to its chemical composition, $1\textit{T'}-\text{TaTe}_2$ exhibits an electronically and structurally unique set of charge-density waves (CDWs), featuring increased conductivity and a reduced prominence of amplitude modes. Compared to other charge-ordered TMDCs, only very few studies addressed the ultrafast response of this material to optical excitation. In particular, the question whether such unconventional properties translate to unusual quench dynamics remains largely unresolved. Here, we investigate the structural dynamics in $1\textit{T'}-\text{TaTe}_2$ by means of ultrafast nanobeam electron diffraction. The experiments are carried out with a tailored sample design that allows for excitation at 2$\,$MHz repetition rate, higher than any structural phase transformation probed thus far. Harnessing the enhanced resolution and sensitivity of this approach, we reveal a strongly directional cooperative atomic motion during the one-dimensional quench of the low-temperature trimer lattice. These dynamics are completed within less than 500$\,$fs, substantially faster than reported previously. In striking contrast, the periodic lattice distortion of the room-temperature phase is unusually robust against high-density electronic excitation. In conjunction with the known sensitivity of $1\textit{T'}-\text{TaTe}_2$ to chemical doping, we thus expect the material to serve as a versatile platform for tunable structural control by optical stimuli.
Nonlinear phase shift from photon-photon scattering in vacuum
Creators: name: Ferrando, Albert
name: Michinel, Humberto
name: Seco, Marcos
name: Tommasini, Daniele
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We show that QED nonlinear effects imply a phase correction to the linear evolution of electromagnetic waves in vacuum. We provide explicit solutions of the modified Maxwell's equations for the propagation of a superposition of two plane waves, and calculate analytically and numerically the corresponding phase shift. This provides a new framework for the search of all-optical signatures of photon-photon scattering in vacuum. In particular, we propose an experiment for measuring the phase shift in projected high-power laser facilities.
description: 4 pages, 1 figure. Some references were added, and the comparison with AC Kerr effect has been improved
Co-evolution of platform architecture, platform services, and platform governance: Expanding the platform value of industrial digital platforms
Creators: name: Jovanovic, Marin
name: Sjodin, David
name: Parida, Vinit
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Industrial manufacturers increasingly develop digital platforms in the business-to-business (B2B) context. This emergent form of digital platforms requires a profound yet little understood holistic perspective that encompasses the co-evolution of platform architecture, platform services, and platform governance. To address this research gap, our study examines multiple platform sponsors from an industrial manufacturing context. The study demarcates three platform archetypes: product platform, supply chain platform, and platform ecosystem. We argue that each platform archetype involves a gradual development of platform architecture, platform services, and platform governance, which mirror each other. We also find that each platform archetype is characterized by a specific innovation mechanism that contributes to the platform service discovery and expands the platform value. Our study extends the co-evolution perspective of platform ecosystem literature and digital servitization literature.
Collisional Particle Disks
Creators: name: Lithwick, Yoram
name: Chiang, Eugene
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new, simple, fast algorithm to numerically evolve disks of inelastically colliding particles surrounding a central star. Our algorithm adds negligible computational cost to the fastest existing collisionless N-body codes, and can be used to simulate, for the first time, the interaction of planets with disks over many viscous times. Though the algorithm is implemented in two dimensions-i.e., the motions of bodies need only be tracked in a plane-it captures the behavior of fully three-dimensional disks in which collisions maintain inclinations that are comparable to random eccentricities. We subject the algorithm to a battery of tests for the case of an isolated, narrow, circular ring. Numerical simulations agree with analytic theory with regards to how particles' random velocities equilibrate; how the ring viscously spreads; and how energy dissipation, angular momentum transport, and material transport are connected. We derive and measure the critical value of the coefficient of restitution above which viscous stirring dominates inelastic damping and the particles' velocity dispersion runs away.
description: Submitted to ApJ
Intermediate inflation in generalized non-minimal derivative coupling model
Creators: name: Goodarzi, Parviz
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we consider intermediate inflation in context of the Generalized Non-Minimal Derivative Coupling (GNMDC) model. In this model, inflation is driven by a canonical scalar field that is coupled not only to gravity but also to the derivative of the scalar field. The GNMDC model introduces new dynamics and features during the inflationary epoch. We find inflationary solutions with a power law scalar field for the power law coupling function. Additionally, we determine the inflaton potential that generates intermediate expansion of the scale factor. We also discuss the background equations in the high friction limit and derive constraints on the parameters of our model. Furthermore, we investigate the cosmological perturbations in the slow roll approximation within the GNMDC model, We calculate the scalar and tensor spectral index and the tensor-to-scalar ratio during the intermediate inflation. We compare the results of this model with the observational data that can be used to test the model using the cosmic microwave background radiation data. Overall, we establish conditions for the inflaton potential that ensure the continuation of accelerated expansion during the slow roll inflation. We numerically analyze the power spectrum and spectral index for scalar and tensor modes in intermediate inflation in the high friction limit. Moreover, we use the Planck 2018 data, to obtain constraints on the parameters of the model. We demonstrate that intermediate inflation in the GNMDC model is successful in evaluation and explanation of the background and perturbational quantities using observational data.
description: 24 pages, 9 figures
Data on static location/Datos sobre locación estática
Creators: name: Vílchez Cabrera, Nelly
name: Vallejos Yopán, Rosa
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: sey

description: Responses to Ameka, Felix K., Carliene de Witte & David Wilkins. 1999. Picture Series for Positional Verbs: Eliciting the Verbal Component in Locative Descriptions. In Wilkins, David (ed.), Manual for the 1999 Field Season, pp. 48-54. Nijmegen: Max Planck Institute for Psycholinguistics. doi:10.17617/2.2573831. The recordings have been transcribed and translated into Spanish and English using Praat.
Elgot Algebras
Creators: name: Adamek, Jiri
name: Milius, Stefan
name: Velebil, Jiri
Publisher: name: arXiv
Year: 2006
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Category Theory (math.CT)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.3.2

description: Denotational semantics can be based on algebras with additional structure (order, metric, etc.) which makes it possible to interpret recursive specifications. It was the idea of Elgot to base denotational semantics on iterative theories instead, i.e., theories in which abstract recursive specifications are required to have unique solutions. Later Bloom and Esik studied iteration theories and iteration algebras in which a specified solution has to obey certain axioms. We propose so-called Elgot algebras as a convenient structure for semantics in the present paper. An Elgot algebra is an algebra with a specified solution for every system of flat recursive equations. That specification satisfies two simple and well motivated axioms: functoriality (stating that solutions are stable under renaming of recursion variables) and compositionality (stating how to perform simultaneous recursion). These two axioms stem canonically from Elgot's iterative theories: We prove that the category of Elgot algebras is the Eilenberg-Moore category of the monad given by a free iterative theory.
Introducing computers into the Mathematics classroom: a case study
Creators: name: Garfinkel, Sandra Lea
Publisher: name: University of British Columbia
Year: 2008

description: This research study is concerned with the introduction of computers into a mathematics classroom. The study investigates the teaching of a graphing unit in the Mathematics 11 curriculum in a computer-enhanced setting and is framed within four research questions. The study investigates the features that emerged in a computer-based mathematics classroom, whether the teachers and students adapted to such a setting, and the advantages and disadvantages experienced by both groups. Two teachers and their students were involved in this study. The mathematics classroom was equipped with 16 networked computers and a teacher workstation outfitted with an overhead projection device. The computer was used by the teacher as a demonstration tool and by the students as an aid to completing assignments. The students usually worked in small groups of two or three. Over a period of two weeks three mathematics classes were observed. The data collected during this period consist of detailed descriptions of events and people, as well as analytic ideas and personal impressions. At the conclusion of the two week observation period, 11 classes had been observed and ten salient features emerged in the analysis of the data. The site and the software seemed to have the greatest influence on the introduction of computers into the mathematics classroom. Cooperative learning also played a major role in the computer-based classroom. It was also shown that teachers require in-service training in the use of computers; they need to develop materials and tests to correlate with the software and the curriculum; and they need teaching assistants to help implement and monitor computer related activities. This study illustrated the first steps towards fully integrating computers in a mathematics classroom. The teachers modified their teaching format slightly with traditional teaching methods dominating most of the lessons. They realized the potential of using computers and remained challenged to develop their use. Integrating computers in the mathematics classroom is a realistic goal; this research study suggests that the process can only proceed one step at a time with careful planning and clear goal setting with regard to teaching and evaluation objectives.
Verso la ‘Glottodidattica speciale’
Creators: name: Daloiso, Michele
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2012

description:

This paper outlines the proposal for a new language teaching research area specifically devoted to the study of (native, foreign and second) language learning within the context of special needs. Particularly, the first part of the paper discusses the epistemological background and the theoretical necessity for such a branch of language teaching theory and methodology, whereas the second part sets the epistemological framework of reference for studies in this research field. For this reason, the paper also outlines the theoretical framework for all the papers collected in this special issue of EL.LE journal.

description: EL.LE
Ubiquitous order-disorder transition in the Mn antisite sublattice of the (MnBi$_2$Te$_4$)(Bi$_2$Te$_3$)$_n$ magnetic topological insulators
Creators: name: Sahoo, M.
name: Onuorah, I. J.
name: Folkers, L. C.
name: Chulkov, E. V.
name: Otrokov, M. M.
name: Aliev, Z. S.
name: Amiraslanov, I. R.
name: Wolter, A. U. B.
name: Büchner, B.
name: Corredor, L. T.
name: Wang, Ch.
name: Salman, Z.
name: Isaeva, A.
name: De Renzi, R.
name: Allodi, G.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magnetic topological insulators (TIs) herald a wealth of applications in spin-based technologies, relying on the novel quantum phenomena provided by their topological properties. Particularly promising is the (MnBi$_2$Te$_4$)(Bi$_2$Te$_3$)$_n$ layered family of established intrinsic magnetic TIs that can flexibly realize various magnetic orders and topological states. High tunability of this material platform is enabled by manganese-pnictogen intermixing, whose amounts and distribution patterns are controlled by synthetic conditions. Positive implication of the strong intermixing in MnSb$_2$Te$_4$ is the interlayer exchange coupling switching from antiferromagnetic to ferromagnetic, and the increasing magnetic critical temperature. On the other side, intermixing also implies atomic disorder which may be detrimental for applications. Here, we employ nuclear magnetic resonance and muon spin spectroscopy, sensitive local probe techniques, to scrutinize the impact of the intermixing on the magnetic properties of (MnBi$_2$Te$_4$)(Bi$_2$Te$_3$)$_n$ and MnSb$_2$Te$_4$. Our measurements not only confirm the opposite alignment between the Mn magnetic moments on native sites and antisites in the ground state of MnSb$_2$Te$_4$, but for the first time directly show the same alignment in (MnBi$_2$Te$_4$)(Bi$_2$Te$_3$)$_n$ with n = 0, 1 and 2. Moreover, for all compounds, we find the static magnetic moment of the Mn antisite sublattice to disappear well below the intrinsic magnetic transition temperature, leaving a homogeneous magnetic structure undisturbed by the intermixing. Our findings provide a microscopic understanding of the crucial role played by Mn-Bi intermixing in (MnBi$_2$Te$_4$)(Bi$_2$Te$_3$)$_n$ and offer pathways to optimizing the magnetic gap in its surface states.
description: 13 pages, 4 figures (Main) and 8 pages, 10 figures (Supplemental)
Effects of Strong Magnetic Fields on the Hadron-Quark Deconfinement Transition
Creators: name: Backes, Betânia C. T.
name: Marquez, Kauan D.
name: Menezes, Débora P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The aim of the present work is to investigate the effects of strong magnetic fields on the hadron-quark phase transition point at zero temperature. To describe the hadronic phase, a relativistic mean field (RMF) model is used and to describe the quark phase a density dependent quark mass model (DDQM) is employed. As compared with the results obtained with non-magnetised matter, we observe a shift of the transition point towards higher pressures and, generally also towards higher chemical potentials. An investigation of the phase transitions that could sustain hybrid stars is also performed.
description: 8 pages, 5 figures, 1 table
Searching for doubly charged Higgs bosons in Möller scattering by resonance effects at linear $e^-e^-$ collider
Creators: name: Chen, C. S.
name: Geng, C. Q.
name: Zhuridov, D. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the parity-violating left-right asymmetries (LRAs) in Möller scattering at the International Linear Collider (ILC) induced by doubly charged Higgs bosons in models with $SU(2)_L$ triplet and singlet scalar bosons, which couple to the left- and right-handed charged leptons, respectively. These bosons are important in the scenarios for the generation of the neutrino mass. We demonstrate that the contributions to the LRAs from the triplet and singlet bosons are opposite to each other. In particular, we show that the doubly charged Higgs boson from the singlet scalar can be tested at the ILC by using the resonance effect.
description: 12 pages, 5 figures; version published in Eur.Phys.J.C60:119-124,2009
Vision-Based Hand Gesture Customization from a Single Demonstration
Creators: name: Shahi, Soroush
name: Mollyn, Vimal
name: Park, Cori Tymoszek
name: Kang, Richard
name: Liberman, Asaf
name: Levy, Oron
name: Gong, Jun
name: Bedri, Abdelkareem
name: Laput, Gierad
Publisher: name: arXiv
Year: 2024
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences
subject: H.5.2; I.4

description: Hand gesture recognition is becoming a more prevalent mode of human-computer interaction, especially as cameras proliferate across everyday devices. Despite continued progress in this field, gesture customization is often underexplored. Customization is crucial since it enables users to define and demonstrate gestures that are more natural, memorable, and accessible. However, customization requires efficient usage of user-provided data. We introduce a method that enables users to easily design bespoke gestures with a monocular camera from one demonstration. We employ transformers and meta-learning techniques to address few-shot learning challenges. Unlike prior work, our method supports any combination of one-handed, two-handed, static, and dynamic gestures, including different viewpoints, and the ability to handle irrelevant hand movements. We implement three real-world applications using our customization method, conduct a user study, and achieve up to 94% average recognition accuracy from one demonstration. Our work provides a viable path for vision-based gesture customization, laying the foundation for future advancements in this domain.
description: 2024 (UIST' 24). USA, 14 pages
$Λ_b \to Λ_c^*(2595,2625)\ell^-\barν$ form factors from lattice QCD
Creators: name: Meinel, Stefan
name: Rendon, Gumaro
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the first lattice-QCD determination of the form factors describing the semileptonic decays $Λ_b \to Λ_c^*(2595)\ell^-\barν$ and $Λ_b \to Λ_c^*(2625)\ell^-\barν$, where the $Λ_c^*(2595)$ and $Λ_c^*(2625)$ are the lightest charm baryons with $J^P=\frac12^-$ and $J^P=\frac32^-$, respectively. These decay modes provide new opportunities to test lepton flavor universality and also play an important role in global analyses of the strong interactions in $b\to c$ semileptonic decays. We determine the full set of vector, axial vector, and tensor form factors for both decays, but only in a small kinematic region near the zero-recoil point. The lattice calculation uses three different ensembles of gauge-field configurations with $2+1$ flavors of domain-wall fermions, and we perform extrapolations of the form factors to the continuum limit and physical pion mass. We present Standard-Model predictions for the differential decay rates and angular observables. In the kinematic region considered, the differential decay rate for the $\frac12^-$ final state is found to be approximately 2.5 times larger than the rate for the $\frac32^-$ final state. We also test the compatibility of our form-factor results with zero-recoil sum rules.
description: 30 pages, 9 figures
Fondamenti pedagogici per una ‘Glottodidattica speciale’
Creators: name: Tessaro, Fiorino
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2012

description:

The pedagogical foundations underlying research studies in foreign language teaching to special needs students are the following: a) value foundations, which are based on the concept of educability and aim at identifying and developing students’ potential by means of inclusive strategies; b) epistemological foundations, which take into account that these students are walking a rough path to acknowledge their own identity; c) methodological foundations, which provide the tools for designing inclusive curricula integrating individualized teaching and personalized learning.

description: EL.LE
Educazione linguistica e bisogni speciali
Creators: name: Daloiso, Michele
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2012

description:

This paper outlines a possible methodological framework for teaching languages to special needs students. The paper is divided into three parts. The first section provides a definition of ‘language teaching accessibility’ and highlights the theoretical background that has led to this notion. Since it is impossible to achieve any kind of accessibility without knowing the student’s type of need, the second section introduces the notion of Functional Language Learning Profile, which is meant to be as an operational tool for the language teacher to get to know the student’s aptitude, learning style, linguistic background etc. in order to successfully design a personalized teaching plan for the special needs student. Finally, the third section discusses some teaching principles to achieve accessibility in the language classroom.

description: EL.LE
AEGIS: The Diversity of Bright Near-IR Selected Distant Red Galaxies
Creators: name: Conselice, C. J.
name: Newman, J. A.
name: Georgakakis, A.
name: Almaini, O.
name: Coil, A. L.
name: Cooper, M. C.
name: Eisenhardt, P.
name: Foucaud, S.
name: Koekemoer, A.
name: Lotz, J.
name: Noeske, K.
name: Weiner, B.
name: Willmer, C. N. A
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use deep and wide near infrared (NIR) imaging from the Palomar telescope combined with DEEP2 spectroscopy and Hubble Space Telescope (HST) and Chandra Space Telescope imaging to investigate the nature of galaxies that are red in NIR colors. We locate these `distant red galaxies' (DRGs) through the color cut (J-K)_{vega} > 2.3 over 0.7 deg^{2}, where we find 1010 DRG candidates down to K_s = 20.5. We combine 95 high quality spectroscopic redshifts with photometric redshifts from BRIJK photometry to determine the redshift and stellar mass distributions for these systems, and morphological/structural and X-ray properties for 107 DRGs in the Extended Groth Strip. We find that many bright (J-K)_{vega}>2.3 galaxies with K_s<20.5 are at redshifts z<2, with 64% between 12 systems massive with M_*>10^{11} M_solar. HST imaging shows that the structural properties and morphologies of DRGs are also diverse, with the majority elliptical/compact (57%), and the remainder edge-on spirals (7%), and peculiar galaxies (29%). The DRGs at z < 1.4 with high quality spectroscopic redshifts are generally compact, with small half light radii, and span a range in rest-frame optical properties. The spectral energy distributions for these objects differ from higher redshift DRGs: they are bluer by one magnitude in observed (I-J) color. A pure IR color selection of high redshift populations is not sufficient to identify unique populations, and other colors, or spectroscopic redshifts are needed to produce homogeneous samples.
description: ApJ letters, in press
Mezzi informatici per l’accessibilità glottodidattica
Creators: name: Melero Rodríguez, Carlos Alberto
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2012

description:

This paper starts from a reflection, and a further adjustment for special needs, on Balboni’s model for didactic action. In this way, it stands out the importance of the identification of the causes and consequences of deficits or difficulties of the student. This will help to identify the most appropriate teaching actions to reduce/surround/prevent barriers to language teaching. This will allow the teacher to identify not only the most suitable techniques for language teaching but also the most appropriate it systems to achieve the objective. In the second part of the paper, we propose a practical example, based on dyslexia, for the teaching/learning of prepositions with verbs of motion in Spanish. This is done by creating and using an interactive and multimedia book (iBook). For the creation of this material, we have only used free (or very low price) software and very easy to use (just need to know how to use a simple word processing and a presentations program).

description: EL.LE
Variation of Chromospheric Features as a Function of Latitude and Time using Ca-K Spectroheliograms for Solar Cycles 15-23: Implications for Meridional Flow
Creators: name: Devi, Pooja
name: Singh, Jagdev
name: Chandra, Ramesh
name: Priyal, Muthu
name: Joshi, Reetika
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have analysed the Ca-K images obtained at Kodaikanal Observatory as a function of latitude and time for the period of 1913 - 2004 covering the Solar Cycle 15 to 23. We have classified the chromospheric activity into plage, Enhanced Network (EN), Active Network (AN), and Quiet Network (QN) areas to differentiate between large strong active and small weak active regions. The strong active regions represent toroidal and weak active regions poloidal component of the magnetic field. We find that plages areas mostly up to 50 deg latitude belt vary with about 11-year Solar Cycle. We also find that weak activity represented by EN, AN and QN varies with about 11-year with significant amplitude up to about 50 deg latitude in both the hemispheres. The amplitude of variation is minimum around 50 deg latitude and again increases by small amount in the polar region. In addition, the plots of plages, EN, AN and QN as a function of time indicate the maximum of activity at different latitude occur at different epoch. To determine the phase difference for the different latitude belts, we have computed the cross-correlation coefficients of other latitude belts with 35 deg latitude belt. We find that activity shifts from mid-latitude belts towards equatorial belts at fast speed at the beginning of Solar Cycle and at slower speed as the cycle progresses. The speed of shift varies between approximately 19 and 3 m/s considering all the data for the observed period. This speed can be linked with speed of meridional flows those believed to occur between convection zone and the surface of the Sun.
description: 21 pages, 8 figures, 2 tables
Involutions in finite simple groups as products of conjugates
Creators: name: Dona, Daniele
name: Liebeck, Martin W.
name: Rekvényi, Kamilla
Publisher: name: arXiv
Year: 2024
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: Let $G$ be a finite non-abelian simple group, $C$ a non-identity conjugacy class of $G$, and $Γ_C$ the Cayley graph of $G$ based on $C \cup C^{-1}$. Our main result shows that in any such graph, there is an involution at bounded distance from the identity.
description: 13 pages
Competenza e disturbi di linguaggio nel plurilinguismo
Creators: name: Crescentini, Cristiano
name: Marini, Andrea
name: Fabbro, Franco
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2012

description:

This article focuses on the anatomo-functional correlates of multilingual competence, on its acquisition and potential benefits on cognitive and social development. Moreover, in case of acquired brain injury or inadequate cerebral, cognitive or intellectual maturation, this contribution will deal with the issue of linguistic assessment and rehabilitation in multilingual patients.

description: EL.LE
The Chemistry of the Local Group
Creators: name: Gibson, Brad K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Simulations of the chemical enrichment histories of ten Local Group (LG) dwarf galaxies are presented, employing empirically-derived star formation histories (SFHs), a rich network of isotopic and elemental nucleosynthetic yields, and a range of prescriptions for supernova (SN)-driven outflows. Our main conclusions are that (i) neutron-capture element patterns (particularly that of Ba/Y) suggest a strong contribution from low- and intermediate-mass stars, (ii) neutron star mergers may play a relatively larger role in the nucleosynthesis of dwarfs, (iii) SN feedback alone can explain the observed gas fraction in dwarf irregulars (dIrrs), but dwarf spheroidals (dSphs) require almost all their gas to be removed via ram pressure and/or tidal stripping, (iv) the predicted heavy Mg isotope enhancements in the interstellar medium of dwarfs may provide an alternate solution to claims of a varying fine structure (v) the gas lost from dwarfs have O,Si/C abundances in broad agreement with intergalactic medium abundances at redshifts 2
description: 4 pages, 1 figure, in Proceedings of IAU Symposium No. 241 "Stellar Populations as Building Blocks of Galaxies", eds. A. Vazdekis and R. Peletier, Cambridge: Cambridge University Press, in press
Additional file 5 of Genome-wide association study reveals 14 new SNPs and confirms two structural variants highly associated with the horned/polled phenotype in goats
Creators: name: Guo, Jiazhong
name: Jiang, Rui
name: Mao, Ayi
name: Liu, George E.
name: Zhan, Siyuan
name: Li, Li
name: Zhong, Tao
name: Wang, Linjie
name: Cao, Jiaxue
name: Chen, Yu
name: Zhang, Guojun
name: Zhang, Hongping
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Fig. S2: Validation of a mutation within the ERG gene through PCR and Sanger sequencing.
Der Transfer von KI-Expertise in die Wirtschaft
Creators: name: Jessica Schmeiss, Nicolas Friederici
Publisher: name: Zenodo
Year: 2019
Subjects: KI, Wirtschaft, Transfer

description: Der Transfer von Forschungsergebnissen in die Wirtschaft ist ein wichtiger Hebel, um Deutschland zum führenden KI-Standort zu machen. Die EXIST-Förderprogramme unterstützen Gründer aus dem universitären Umfeld bei der Unternehmensgründung. Jessica Schmeiss und Nicolas Friederici zeigen in diesem Blogpost, welche Arten von Unternehmen aus den EXIST Programmen hervorgehen. Der Beitrag ist Teil der “Demystifying AI in entrepreneurship” Studie, die in 2019 am HIIG veröffentlicht wird.
Le conseguenze della sordità nell’accessibilità alla lingua e ai suoi codici
Creators: name: Bertone, Carmela
name: Volpato, Francesca
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2012

description:

This essay offers a general perspective on the linguistic competence of deaf children in Italian language. Some studies have investigated the linguistic competence in different typologies of deaf people: orally-trained children with cochlear implants, native signers, non-native signers and deaf foreigners adolescents and adults. Although the results vary according to the different populations, the difficulties that overall deaf individuals experience are the same. They all make mistakes in unstressed elements (articles, clitic pronouns, prepositions, morphological functional elements) often co-articulated with the word that follows or precedes them. Deaf people seem to follow the same phases of language acquisition of hearing people but with atypical errors that cannot be assimilated to errors foreigners learning Italian language make. In most cases the written language is the main channel for deaf people to access to oral language, literacy skills are the final step in the process of language acquisition, while for deaf people these are the starting point. Is it possible to acquire language through its written form? These remarks lead us to reflect and reconsider the current school system in an attempt to find appropriate strategies that better enable deaf people to access the spoken language. This need justifies the presence of a linguist, specialized in linguistic acquisition and deafness, within the group of professionals who collaborate in the rehabilitation and education of deaf students.

description: EL.LE
Graph Feature Preprocessor: Real-time Subgraph-based Feature Extraction for Financial Crime Detection
Creators: name: Blanuša, Jovan
name: Baraja, Maximo Cravero
name: Anghel, Andreea
name: von Niederhäusern, Luc
name: Altman, Erik
name: Pozidis, Haris
name: Atasu, Kubilay
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In this paper, we present "Graph Feature Preprocessor", a software library for detecting typical money laundering patterns in financial transaction graphs in real time. These patterns are used to produce a rich set of transaction features for downstream machine learning training and inference tasks such as detection of fraudulent financial transactions. We show that our enriched transaction features dramatically improve the prediction accuracy of gradient-boosting-based machine learning models. Our library exploits multicore parallelism, maintains a dynamic in-memory graph, and efficiently mines subgraph patterns in the incoming transaction stream, which enables it to be operated in a streaming manner. Our solution, which combines our Graph Feature Preprocessor and gradient-boosting-based machine learning models, can detect illicit transactions with higher minority-class F1 scores than standard graph neural networks in anti-money laundering and phishing datasets. In addition, the end-to-end throughput rate of our solution executed on a multicore CPU outperforms the graph neural network baselines executed on a powerful V100 GPU. Overall, the combination of high accuracy, a high throughput rate, and low latency of our solution demonstrates the practical value of our library in real-world applications.
description: ACM ICAIF'24, extended version
Improving Production Line Performance A Case Study of an Automotive Assembly Plant
Athiwat Thanwacharamongkol
Sakda Khamjan
Creators: name: Wirekha Khamjan
name: Athiwat Thanwacharamongkol
name: Sakda Khamjan
Publisher: name: Rajamangala University of Technology Lanna
Year: 2021
Subjects: Performance Improvement
Man-Machine Chart
5W1H
ECRS
Idle Time

description: RMUTL Engineering Journal, 6, 2, 56-63
Regional co-operative development : the Mondragon example
Creators: name: Tompkins, Catherine Jane
Publisher: name: University of British Columbia
Year: 2008

description: The Thesis examines the dynamics of the Mondragon Co-operative system in the Basque Region of Spain, and assesses the implications which the system has for co-operative movements in other regions. The polarities of co-operative independence and interdependence at Mondragon are examined in the context of an increasingly competitive European marketplace. Shortcomings are identified in conventional Canadian regional development initiatives, which may be minimized through co-operative efforts in the marketplace. It is argued that historically Canadian co-operative members have lacked adequate legislative, commercial and financial resources as well as systematic organizational links with each other to become a significant third sector of the economy. A 'proactive' approach is suggested for co-operative system development, as a means to enhance and expand the co-operative movement in Canada. The Mondragon experiment indicates that technical and financial support through interco-operative linkages can provide a near guarantee against later failure. The Caja Laboral Popular, Ikerlan, the L.K.S. and other support co-operatives, which are governed by the producer co-operatives, assist the producer co-operatives through losses due to changes in market conditions or other variables. At the same time, interco-operative collaboration permits co-operatives to achieve economies of scale which are lacking in Canada's co-operative tradition. The development process in the Basque region is facilitated by formulas designed to provide essential social and educational services, mitigate unemployment and provide lifestyle opportunities through economically democratic means. The thesis contends that while an abrogation of autonomy is a necessary component of co-operative growth and development, sufficient decision making options must be left in the hands of co-operative workers. Balancing the need for autonomy and the need for economic vitality at Mondragon has been a difficult and seemingly unresolved dilemma, particularly since the mid-1980s. While the recent reorganization of the Mondragon system raises serious questions about the future of worker participation in many spheres of the system, Mondragon is offered as a crucial component in the ongoing debate on the need for an economically as well as politically democratic community.
Data on static location/Datos sobre locación estática
Creators: name: Cabrera Sandoval, Marita
name: Vallejos Yopán, Rosa
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: sey

description: Responses to Ameka, Felix K., Carliene de Witte & David Wilkins. 1999. Picture Series for Positional Verbs: Eliciting the Verbal Component in Locative Descriptions. In Wilkins, David (ed.), Manual for the 1999 Field Season, pp. 48-54. Nijmegen: Max Planck Institute for Psycholinguistics. doi:10.17617/2.2573831. The recordings have been transcribed and translated into Spanish and English using Praat.
PRompt Optimization in Multi-Step Tasks (PROMST): Integrating Human Feedback and Heuristic-based Sampling
Creators: name: Chen, Yongchao
name: Arkin, Jacob
name: Hao, Yilun
name: Zhang, Yang
name: Roy, Nicholas
name: Fan, Chuchu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Human-Computer Interaction (cs.HC)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Prompt optimization aims to find the best prompt to a large language model (LLM) for a given task. LLMs have been successfully used to help find and improve prompt candidates for single-step tasks. However, realistic tasks for agents are multi-step and introduce new challenges: (1) Prompt content is likely to be more extensive and complex, making it more difficult for LLMs to analyze errors, (2) the impact of an individual step is difficult to evaluate, and (3) different people may have varied preferences about task execution. While humans struggle to optimize prompts, they are good at providing feedback about LLM outputs; we therefore introduce a new LLM-driven discrete prompt optimization framework PRompt Optimization in Multi-Step Tasks (PROMST) that incorporates human-designed feedback rules to automatically offer direct suggestions for improvement. We also use an extra learned heuristic model that predicts prompt performance to efficiently sample from prompt candidates. This approach significantly outperforms both human-engineered prompts and several other prompt optimization methods across 11 representative multi-step tasks (an average 10.6\%-29.3\% improvement to current best methods on five LLMs respectively). We believe our work can serve as a benchmark for automatic prompt optimization for LLM-driven multi-step tasks. Datasets and Codes are available at https://github.com/yongchao98/PROMST. Project Page is available at https://yongchao98.github.io/MIT-REALM-PROMST.
description: 62 pages, 14 figures, Published in EMNLP 2024 Main