cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Double Machine Learning for Partially Linear Mixed-Effects Models with Repeated Measurements
Creators: name: Emmenegger, Corinne
name: Bühlmann, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Traditionally, spline or kernel approaches in combination with parametric estimation are used to infer the linear coefficient (fixed effects) in a partially linear mixed-effects model for repeated measurements. Using machine learning algorithms allows us to incorporate complex interaction structures and high-dimensional variables. We employ double machine learning to cope with the nonparametric part of the partially linear mixed-effects model: the nonlinear variables are regressed out nonparametrically from both the linear variables and the response. This adjustment can be performed with any machine learning algorithm, for instance random forests, which allows to take complex interaction terms and nonsmooth structures into account. The adjusted variables satisfy a linear mixed-effects model, where the linear coefficient can be estimated with standard linear mixed-effects techniques. We prove that the estimated fixed effects coefficient converges at the parametric rate, is asymptotically Gaussian distributed, and semiparametrically efficient. Two simulation studies demonstrate that our method outperforms a penalized regression spline approach in terms of coverage. We also illustrate our proposed approach on a longitudinal dataset with HIV-infected individuals. Software code for our method is available in the R-package dmlalg.
MAPPING OF FAULT SYSTEM RELATED TO SALT MOVEMENT IN VOLVE FIELD, OFFSHORE NORWAY, NORTH SEA
Creators: name: Teerapong Jiratitipat
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2020
Subjects: Seismic attributes, Volve field, Salt Identification

description: Bulletin of Earth Sciences of Thailand (BEST), 12, 2, 25-36
Neural Human Deformation Transfer
Creators: name: Basset, Jean
name: Boukhayma, Adnane
name: Wuhrer, Stefanie
name: Multon, Franck
name: Boyer, Edmond
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We consider the problem of human deformation transfer, where the goal is to retarget poses between different characters. Traditional methods that tackle this problem require a clear definition of the pose, and use this definition to transfer poses between characters. In this work, we take a different approach and transform the identity of a character into a new identity without modifying the character's pose. This offers the advantage of not having to define equivalences between 3D human poses, which is not straightforward as poses tend to change depending on the identity of the character performing them, and as their meaning is highly contextual. To achieve the deformation transfer, we propose a neural encoder-decoder architecture where only identity information is encoded and where the decoder is conditioned on the pose. We use pose independent representations, such as isometry-invariant shape characteristics, to represent identity features. Our model uses these features to supervise the prediction of offsets from the deformed pose to the result of the transfer. We show experimentally that our method outperforms state-of-the-art methods both quantitatively and qualitatively, and generalises better to poses not seen during training. We also introduce a fine-tuning step that allows to obtain competitive results for extreme identities, and allows to transfer simple clothing.
An introduction to the rural Swahili dialects of Zanzibar
Creators: name: Furumoto
Publisher: name: Zenodo
Year: 2022

description: Note: This talk has not gone through a process of peer review, and findings should therefore be treated as preliminary and subject to change. SOAS Linguistics Seminar
 An introduction to the rural Swahili dialects of Zanzibar Makoto Furumoto
 ILCAA, Tokyo University of Foreign Studies

 Abstract: Kimakunduchi (Kikae, Kihadimu) and Kitumbatu (Kikaye) are Swahili dialects spoken in rural Zanzibar. This talk introduces part of their unique features, which not only further their descriptive status but also provide new insights into the study of grammaticalisation.
Ultraviolet Spectroscopy and TARDIS Models of the Broad-lined Type-Ic Supernova 2014ad
Creators: name: Kwok, Lindsey A.
name: Williamson, Marc
name: Jha, Saurabh W.
name: Modjaz, Maryam
name: Camacho-Neves, Yssavo
name: Foley, Ryan J.
name: Garnavich, Peter
name: Maeda, Keiichi
name: Milisavljevic, Dan
name: Pandya, Viraj
name: Dai, Mi
name: McCully, Curtis
name: Pritchard, Tyler
name: Singhal, Jaladh
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Few published ultraviolet (UV) spectra exist for stripped-envelope supernovae, and none to date for broad-lined Type Ic supernovae (SN Ic-bl). These objects have extremely high ejecta velocities and are the only supernova type directly linked to gamma-ray bursts (GRBs). Here we present two epochs of HST/STIS spectra of the SN Ic-bl 2014ad, the first UV spectra for this class. We supplement this with 26 new epochs of ground-based optical spectra, augmenting a rich spectral time series. The UV spectra do not show strong features and are consistent with broadened versions of other SN Ic spectra observed in the UV. We measure Fe II 5169 Angstrom velocities and show that SN 2014ad has even higher ejecta velocities than most SNe Ic both with and without observed GRBs. We construct models of the SN 2014ad UV+optical spectra using TARDIS, a 1D Monte-Carlo radiative-transfer spectral synthesis code. The models fit the data well at multiple epochs in the optical but underestimate the flux in the UV, likely due to simplifying assumptions. We find that high densities at high velocities are needed to reproduce the spectra, with $\sim$3 M$_\odot$ of material at $v >$ 22,000 km s$^{-1}$, assuming spherical symmetry. Our nebular line fits suggest a steep density profile at low velocities. Together, these results imply a higher total ejecta mass than estimated from previous light curve analysis and expected from theory. This may be reconciled by a flattening of the density profile at low velocity and extra emission near the center of the ejecta.
description: 26 pages, 14 figures, accepted in ApJ
Probe of New Physics using Precision Measurement of the Electron Magnetic Moment
Creators: name: Aboubrahim, Amin
name: Ibrahim, Tarek
name: Nath, Pran
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The anomalous magnetic moment of the electron is determined experimentally with an accuracy of $2.8\times 10^{-13}$ and the uncertainty may decrease by an order of magnitude in the future. While the current data is in excellent agreement with the standard model, the possible future improvement in the error in $Δa_e= a_e^{\text{exp}}- a_e^{\text{theory}}$ has recently drawn interest in the electron anomalous magnetic moment as a possible probe of new physics beyond the standard model. In this work we give an analysis of such physics in an extension of the minimal supersymmetric standard model with a vector multiplet. In the extended model the electroweak contribution to the anomalous magnetic moment of the electron include loop diagrams involving in addition to the exchange of W and Z, the exchange of charginos, sneutrinos and mirror sneutrinos, and the exchange of neutralinos, sleptons and mirror sleptons. The analysis shows that a contribution to the electron magnetic moment much larger than expected by $m_e^2/m_μ^2$ scaling of the deviation of the muon anomalous magnetic moment over the standard model prediction, i.e., $Δa_μ= 3 \times 10^{-9}$ as given by the Brookhaven experiment, can be gotten within the MSSM extension. Effects of CP violating phases in the extended MSSM model on the corrections to the supersymmetric electroweak contributions to $a_e$ are also investigated. The analysis points to the possibility of detection of new physics effects with modest improvement on the error in $Δa_e= a_e^{\text{exp}} - a_e^{\text{theory}}$.
description: 28 pages, 8 figures. Accepted for publication in Physical Review D. arXiv admin note: text overlap with arXiv:1312.2505
Nuclear-Level Effective Theory of $μ\rightarrow e$ Conversion
Creators: name: Rule, Evan
name: Haxton, W. C.
name: McElvain, Ken
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Mu2e and COMET $μ\rightarrow e$ conversion experiments are expected to significantly advance limits on new sources of charged lepton flavor violation (CLFV). Almost all theoretical work in the field has focused on just two operators. However, general symmetry arguments lead to a $μ\rightarrow e$ conversion rate with six response functions, each of which, in principle, is observable by varying nuclear properties of targets. We construct a nucleon-level nonrelativistic effective theory (NRET) to clarify the microscopic origin of these response functions and to relate rate measurements in different targets. This exercise identifies three operators and their small parameters that control the NRET operator expansion. We note inconsistencies in past treatments of these parameters. The NRET is technically challenging, involving 16 operators, several distorted electron partial waves, bound muon upper and lower components, and an exclusive nuclear matrix element. We introduce a trick for treating the electron Coulomb effects accurately, which enables us to include all of these effects while producing transition densities whose one-body matrix elements can be evaluated analytically, greatly simplifying the nuclear physics. We derive bounds on operator coefficients from existing and anticipated $μ\rightarrow e$ conversion experiments. We discuss how similar NRET formulations have impacted dark matter phenomenology, noting that the tools this community has developed could be adapted for CLFV studies.
description: 5 pages, 2 figures, to be submitted to PRL
Varieties of ordered algebras as categories
Creators: name: Adámek, Jiří
name: Rosický, Jiří
Publisher: name: arXiv
Year: 2021
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: A variety is a category of ordered (finitary) algebras presented by inequations between terms. We characterize categories enriched over the category of posets which are equivalent to a variety. This is quite analogous to Lawvere's classical characterization of varieties of ordinary algebras. We also prove that varieties of ordered algebras are precisely the free completions of duals of discrete Lawvere theories under sifted colimits.
description: revised version, 29 pages
2D Petroleum System Modelling and Hydrocarbon Potentiality of Huai Hin Lat Formation, Khorat Plateau, Thailand
Creators: name: Theeravet Netrasuvarn
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2020
Subjects: 2D Petroleum modelling, Hydrocarbon Potentiality, source rock evaluation, Huai Hin Lat Formation, Khorat Plateau

description: Bulletin of Earth Sciences of Thailand (BEST), 12, 2, 37-47
Certainty-based-marking - eine kompetenzorientierte Prüfungsmethode
Creators: name: Kanzinger, Annika
name: Gehrig, Edeltraud
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2023
Subjects: subject: CBM
subject: Selbstreflexion
subject: STEM
subject: Prüfungsmethode
subject: kompetenzfördernd
subject: Assessment
subject: Digitalisierung
subject: alternative Prüfungsformate
subject: 510

description: In der vorliegenden Studie wird die Wirksamkeit von Certainty-based-marking (CBM) im Hinblick auf kompetenzorientiertes Prüfen sowie Selbstreflexion untersucht. Denn Studierende merken zu spät, wenn sie die Prüfung am Ende des Semesters nicht bestehen können (Clark & Schroth 2010). Darüber hinaus sind hohe Abbruchquoten ermöglicht auf mathematische Fächer zurückzuführen und es werden Methoden für kontinuierliches Lernen und Prüfen gefordert. Eine Möglichkeit hierfür sind mehrere kleine Assessments während des Semesters (Derboven & Winker 2010). Studien zeigen bereits, wie dieses formative Prüfen nicht nur eine Lernstandserfassung ermöglicht, sondern auch selbstreguliertes Lernen (Combrinck & Hatch 2012). Des Weiteren spiegelt die Selbstbeobachtung des Wissens die Fähigkeit wider, das eigene Wissen und den eigenen Lernprozess richtig einzuschätzen, und kann ein hilfreiches Instrument im Lernprozess sein (Tabibzadeh et al. 2020). CBM nutzt diesen Vorteil des formativen Assessments. Dabei bringt CBM noch einen weiteren Vorteil hervor: das eigenständige Reflektieren des Wissens wird aktiv unterstützt. CBM verbindet somit das kontinuierliche Lernen mit der Selbstreflexion. Die Umsetzung von CBM mit einer virtuellen Lernplattform ermöglicht eine digitale und somit einfachere Korrektur, eine asynchrone Durchführung sowie einen Einsatz von Formelfragen (Bandtel et al. 2021). Bandtel et al. (2021) liefern eine Heuristik für digitales Prüfen.
Effect of nominal substitution of transition metals for excess Fe in Fe_{1+x}Se superconductor
Creators: name: Yadav, Anil K
name: Kumar, Santosh
name: Sanchela, Anup V
name: Thakur, Ajay D
name: Tomy, C V
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Taking cue from the increase in the superconducting transition temperature (Tc) of Fe1+xSe via nominal (2 wt%) substitution of Cr instead of excess Fe, we have now extended our study with nominal substitution (<=5 wt%) with other transition metals (Ni, Co, Fe, Mn, Cr, V and Ti) in place of excess iron. The Tc is found to increase (maximum ~11 K) or get suppressed depending on the substituted transition metal. Our studies indicate that the superconducting transition temperature depends on various parameters like the ionic size of the transition metal, its magnetic moment as well as the amount of hexagonal phase present as impurity.
A Novel Clustering-Based Algorithm for Continuous and Non-invasive Cuff-Less Blood Pressure Estimation
Creators: name: Farki, Ali
name: Kazemzadeh, Reza Baradaran
name: Noughabi, Elham Akhondzadeh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Medical Physics (physics.med-ph)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Extensive research has been performed on continuous, non-invasive, cuffless blood pressure (BP) measurement using artificial intelligence algorithms. This approach involves extracting certain features from physiological signals like ECG, PPG, ICG, BCG, etc. as independent variables and extracting features from Arterial Blood Pressure (ABP) signals as dependent variables, and then using machine learning algorithms to develop a blood pressure estimation model based on these data. The greatest challenge of this field is the insufficient accuracy of estimation models. This paper proposes a novel blood pressure estimation method with a clustering step for accuracy improvement. The proposed method involves extracting Pulse Transit Time (PTT), PPG Intensity Ratio (PIR), and Heart Rate (HR) features from Electrocardiogram (ECG) and Photoplethysmogram (PPG) signals as the inputs of clustering and regression, extracting Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP) features from ABP signals as dependent variables, and finally developing regression models by applying Gradient Boosting Regression (GBR), Random Forest Regression (RFR), and Multilayer Perceptron Regression (MLP) on each cluster. The method was implemented using the MIMICII dataset with the silhouette criterion used to determine the optimal number of clusters. The results showed that because of the inconsistency, high dispersion, and multi-trend behavior of the extracted features vectors, the accuracy can be significantly improved by running a clustering algorithm and then developing a regression model on each cluster, and finally weighted averaging of the results based on the error of each cluster. When implemented with 5 clusters and GBR, this approach yielded an MAE of 2.56 for SBP estimates and 2.23 for DBP estimates, which were significantly better than the best results without clustering (DBP: 6.27, SBP: 6.36).
Fractured Basement Reservoirs in South Pattani Basin: Seismic Recognition and Integrated Multi-attributes Analysis
Creators: name: Ugi Kurnia Gusti
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2020
Subjects: Pattani Basin, Pre-Tertiary Basement, Reservoir, Seismic Attributes

description: Bulletin of Earth Sciences of Thailand (BEST), 12, 2, 48-56
Topologically localized insulators
Creators: name: Lapierre, Bastien
name: Neupert, Titus
name: Trifunovic, Luka
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We show that fully-localized, three-dimensional, time-reversal-symmetry-broken insulators do not belong to a single phase of matter but can realize topologically distinct phases that are labelled by integers. The phase transition occurs only when the system becomes conducting at some filling. We find that these novel topological phases are fundamentally distinct from insulators without disorder: they are guaranteed to host delocalized boundary states giving rise to the quantized boundary Hall conductance, whose value is equal to the bulk topological invariant.
description: Published version
Scrutinizing New Physics in Semi-leptonic $B_{c}\rightarrow J/ψτν$ Decay
Creators: name: Tang, Ru-Ying
name: Huang, Zhuo-Ran
name: Lü, Cai-Dian
name: Zhu, Ruilin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We perform a global analysis of the $b\to cτν$ data using the recent lattice results on the $B_c\to J/ψ$ vector and axial-vector form factors. To explore the effects from the tensor operator of new physics beyond the standard model, we determine the tensor form factors by using the non-relativistic QCD (NRQCD) relations between tensor and (axial-)vector form factors. Based on the lattice+NRQCD form factors, we fit the Wilson coefficients and the new physics couplings in $R_2$, $S_1$ and $U_1$ leptoquark models by including the recently measured $R(Λ_c)$ and imposing the relaxed constraint $\mathcal B(B_c\to J/ψ)<30\%$ in light of the recent studies on LEP1 data and $B_c$ lifetime. We give predictions for the experimental observables including $R(J/ψ)$, $P_τ(J/ψ)$, $F_L(J/ψ)$ and $\mathcal A_{FB}(J/ψ)$ as well as their $q^2$ distribution in new physics scenarios/models. Our results suggest that the longitudinal $τ$ polarization fraction $P_τ(J/ψ)$ and the forward-backward asymmetry $\mathcal A_{FB}(J/ψ)$ are useful for testing the $R_2$ leptoquark model.
description: 19 pages, 10 figures and 6 tables
D1.7 Final Report on Lighthouse Customers and Advisory Board feedback and actions taken
Creators: name: Pavlou, Ioanna
Publisher: name: Zenodo
Year: 2023

description: The purpose of the present D1.7 Final report on Lighthouse Customers and Advisory Board feedback and actions taken is to share within the consortium and the European Commission (EC) the current status quo of the ENVISION Lighthouse Customers (LHC) group and the Advisory Board (AB) members, as well as to present the activities and actions that have been performed during this period with the relevant stakeholders and the AB members.
THE COSTS AND INTENSITY OF CHEMICAL PROTECTION IN THE PRODUCTION OF WINTER WHEAT IN POLAND DEPENDING ON THE WHEAT PRODUCTION SCALE ON FARM
Creators: name: STANISŁAW, ŚWITEK
name: MICHAŁ, GAZDECKI
name: ZUZANNA, SAWINSKA
name: ELŻBIETA, GORYŃSKA-GOLDMANN
name: STANISŁAW, ŚWITEK
name: MICHAŁ, GAZDECKI
name: ZUZANNA, SAWINSKA
name: ELŻBIETA, GORYŃSKA-GOLDMANN
Publisher: name: Unknown
Year: 2022
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: farm size
subject: pesticides cost
subject: cost of crop protectionpesticide use
subject: farmer behaviour
subject: Green Deal

description: This paper aims at investigating pesticides used by farmers and their costs in Poland for winter wheat protection. Based on data collected in 2020 from the market survey among 1,299 growers, an analysis of how farm size determines pesticide usage, and their costs was conducted. A significant interrelationship was found. The average cost of pesticide used in wheat cultivation in 2020 was 85.61 EUR/ha, and the median was 77.24 EUR/ha. The average cost of herbicide was 28.62 EUR/ha with a median of 27.40 EUR/ha. Respectively, the cost for fungicide was 47.90 and 40.68 EUR/ha, while for insecticides farmers spent on average 2.28 EUR/ha. Along with the increased farm size, the protection cost and number of treatments increased, too. Farm size also had an impact on particular herbicide strategies. Smaller farms much more often chose spring herbicide to manage weeds, while bigger ones used herbicide in autumn. In the article, we showed the importance of farm size for the strategies adopted by them. This is particularly important in the era of limiting the use of pesticides and the EU’s Green Deal policy.
A machine learning approach to classification of uveitis patients using Anterior Segment OCT images of the eye
Creators: name: Bhatti, Usmaan
Publisher: name: Zenodo
Year: 2023

description: Grading of uveitis is currently assessed by slit-lamp examination based on the SUN scale, which is subjective and open to interobserver variation. ASOCT imaging has been proposed as an improvement, but manual interpretation of large volumes of scans is time-consuming. This project proposes the use of automated counting of white cells in ASOCT images.
Videogestützte Lernprozessdiagnose in E-Klausuren passgenau zum Aufbau der Fähigkeiten mit dem Online-Tool ViviAn
Creators: name: Rieger, Marc Bastian
name: Roth, Jürgen
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2023
Subjects: subject: Diagnosen
subject: Lehrerbildung
subject: E-Klausur
subject: Video
subject: ViviAn
subject: Assessment
subject: Digitalisierung
subject: alternative Prüfungsformate
subject: 510

description: ViviAn steht für „Videovignetten zur Analyse von Unterrichtsprozessen“ und ist eine Online-Tool welches authentische Unterrichtssituationen und vielfältige Diagnosewerkzeuge bietet, um die Diagnosekompetenz von angehenden Lehrkräften zu trainieren. Es stehen eine Trainings- und eine dazu passgenaue E-Klausurumgebung zur Verfügung. Die Trainingsumgebung ist online verfügbar unter https://vivian.uni-landau.de. ViviAn wurde über mehrere Dissertationen und Projekte hinweg entwickelt sowie erforscht, sodass der Trainingseffekt der diagnostischen Fähigkeiten mit und durch ViviAn gesichert validiert wurde (Bartel & Roth 2020; Hofmann & Roth 2020; Walz 2020; Enenkiel 2022). In diesem Beitrag wird die Trainings- sowie die E-Klausur-Umgebung mit den Forschungsformaten vorgestellt, die die Entwicklung der Plattform begleiten.
Data and code corresponding to lipidomics dataset 4 (Phadnis et al., 2023)
Creators: name: Phadnis, Vaishnavi
Publisher: name: Zenodo
Year: 2023

description: Lipidomics dataset 4: NT sg, MMD2 sg, MMD2 KO1, MMD2 KO2, NT sg + NT sg, NT sg + MBOAT7 sg, MMD KO + NT sg, MMD KO + MBOAT7 sg Source files: 23_0605_HEN_MMD_Followup_C8-pos.xlsx and lipidomics_all_noMetadataOrQC.txt Code: lipidomics_june2023_strategicanalysis_FORPUBLICATION.R
Measurement-based tailoring of Anderson localization of partially coherent light
Creators: name: Svozilík, Jiří
name: Peřina, Jan
name: Torres, Juan P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We put forward an experimental configuration to observe transverse Anderson localization of partially coherent light beams with a tunable degree of first-order coherence. The scheme makes use of entangled photons propagating in disordered waveguide arrays, and is based on the unique relationship between the degree of entanglement of a pair of photons and the coherence properties of the individual photons constituting the pair. The scheme can be readily implemented with current waveguide-on-a-chip technology, and surprisingly, the tunability of the coherence properties of the individual photons is done at the measurement stage, without resorting changes of the light source itself.
description: 7 pages, 5 figures, additional corrections
Symmetrically colored Gaussian graphical models with toric vanishing ideal
Creators: name: Coons, Jane Ivy
name: Maraj, Aida
name: Misra, Pratik
name: Sorea, Miruna-Stefana
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Geometry (math.AG)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62R01

description: A colored Gaussian graphical model is a linear concentration model in which equalities among the concentrations are specified by a coloring of an underlying graph. The model is called RCOP if this coloring is given by the edge and vertex orbits of a subgroup of the automorphism group of the graph. We show that RCOP Gaussian graphical models on block graphs are toric in the space of covariance matrices and we describe Markov bases for them. To this end, we learn more about the combinatorial structure of these models and their connection with Jordan algebras.
description: Comments are very welcome!
The Linear-Time-Invariance Notion of the Koopman Analysis-Part 2: Physical Interpretations of Invariant Koopman Modes and Phenomenological Revelations
Creators: name: Li, Cruz Y.
name: Chen, Zengshun
name: Tse, Tim K. T.
name: Weerasuriya, Asiri Umenga
name: Zhang, Xuelin
name: Fu, Yunfei
name: Lin, Xisheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This serial work presents a Linear-Time-Invariance (LTI) notion to the Koopman analysis, finding consistent and physically meaningful Koopman modes and addressing a long-standing problem of fluid-structure interactions: deterministically relating the fluid and structure. Part 1 (Li et al., 2022) developed the Koopman-LTI architecture and applied it to a pedagogical prism wake. By the systematic procedure, the LTI generated a sampling-independent Koopman linearization that captured all the recurring dynamics, finding six corresponding, orthogonal, and in-synch fluid excitation-structure response mechanisms. This Part 2 analyzes the six modal duplets' to underpin their physical interpretations, providing a phenomenological revelation of the subcritical prism wake. By the dynamical mode shape, results show that two mechanisms at St1=0.1242 and St5=0.0497 describe shear layer dynamics, the associated Bérnard-Kármán shedding, and turbulence production, which together overwhelm the upstream and crosswind walls by instigating a reattachment-type of response. The on-wind walls' dynamical similarity renders them a spectrally unified fluid-structure interface. Another four harmonic counterparts, namely the subharmonic at St7=0.0683, the second harmonic at St3=0.2422, and two ultra-harmonics at St7 =0.1739 and St13=0.1935, govern the downstream wall. The 2P wake mode is also observed as an embedded harmonic of the bluff-body wake. Finally, this work discovered the vortex breathing phenomenon, describing the constant energy exchange in wake's circulation-entrainment-deposition processes. With the Koopman-LTI, one may pinpoint the exact excitations responsible for a specific structural response, or vice versa.
description: 24 figures, 60 pages. Video files at https://drive.google.com/drive/folders/1AHdhUdAfNwlC1XUh-74PgQWW6jUHXJ5j?usp=sharing
D1.7 Final Report on Lighthouse Customers and Advisory Board feedback and actions taken
Creators: name: Delioglani, Dafni
name: Chatzitheodorou, Efstathia
Publisher: name: Zenodo
Year: 2023

description: The purpose of the present D1.7 Final report on Lighthouse Customers and Advisory Board feedback and actions taken is to share within the consortium and the European Commission (EC) the current status quo of the ENVISION Lighthouse Customers (LHC) group and the Advisory Board (AB) members, as well as to present the activities and actions that have been performed during this period with the relevant stakeholders and the AB members.
Directly Detecting the Envelopes of Low-mass Planets Embedded In Protoplanetary Discs and The Case For TW Hydrae
Creators: name: Zhu, Zhaohuan
name: Bailey, Avery
name: Macías, Enrique
name: Muto, Takayuki
name: Andrews, Sean M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Despite many methods developed to find young massive planets in protoplanetary discs, it is challenging to directly detect low-mass planets that are embedded in discs. On the other hand, the core-accretion theory suggests that there could be a large population of embedded low-mass young planets at the Kelvin-Helmholtz (KH) contraction phase. We adopt both 1-D models and 3-D simulations to calculate the envelopes around low-mass cores (several to tens of $M_{\oplus}$) with different luminosities, and derive their thermal fluxes at radio wavelengths. We find that, when the background disc is optically thin at radio wavelengths, radio observations can see through the disc and probe the denser envelope within the planet's Hill sphere. When the optically thin disc is observed with the resolution reaching one disc scale height, the radio thermal flux from the planetary envelope around a 10 M$_{\oplus}$ core is more than 10 % higher than the flux from the background disc. The emitting region can be extended and elongated. Finally, our model suggests that the au-scale clump at 52 au in the TW Hydrae disc revealed by ALMA is consistent with the envelope of an embedded 10-20 $M_{\oplus}$ planet, which can explain the detected flux, the spectral index dip, and the tentative spirals. The observation is also consistent with the planet undergoing pebble accretion. Future ALMA and ngVLA observations may directly reveal more such low-mass planets, enabling us to study core growth and even reconstruct the planet formation history using the embedded "protoplanet" population.
description: 20 pages, 14 figures, MNRAS in press
On a Possible Explanation of the DLS-Puzzle
Creators: name: Bashkanov, M.
name: Clement, H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The enhancement in the dilepton spectrum observed in heavy-ion collisions for invariant electron-positron masses in the range 0.15 GeV/c$^2 < M_{e^+e^-} $ 0.3 GeV/c$^2$ at beam energies below 2 GeV. We show that the missing strength can be attributed to the $ρ$-channel $π^+π^-$-production, which is dominated by the $t$-channel $ΔΔ$ excitation and the recently found isoscalar dibaryonic resonance structure at 2.37 GeV.
A Constrained Transport Scheme for MHD on Unstructured Static and Moving Meshes
Creators: name: Mocz, Philip
name: Vogelsberger, Mark
name: Hernquist, Lars
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Magnetic fields play an important role in many astrophysical systems and a detailed understanding of their impact on the gas dynamics requires robust numerical simulations. Here we present a new method to evolve the ideal magnetohydrodynamic (MHD) equations on unstructured static and moving meshes that preserves the magnetic field divergence-free constraint to machine precision. The method overcomes the major problems of using a cleaning scheme on the magnetic fields instead, which is non-conservative, not fully Galilean invariant, does not eliminate divergence errors completely, and may produce incorrect jumps across shocks. Our new method is a generalization of the constrained transport (CT) algorithm used to enforce the $\nabla\cdot \mathbf{B}=0$ condition on fixed Cartesian grids. Preserving $\nabla\cdot \mathbf{B}=0$ at the discretized level is necessary to maintain the orthogonality between the Lorentz force and $\mathbf{B}$. The possibility of performing CT on a moving mesh provides several advantages over static mesh methods due to the quasi-Lagrangian nature of the former (i.e., the mesh generating points move with the flow), such as making the simulation automatically adaptive and significantly reducing advection errors. Our method preserves magnetic fields and fluid quantities in pure advection exactly.
description: 13 pages, 9 figures, accepted to MNRAS. Animations available at http://www.cfa.harvard.edu/~pmocz/research.html
Dynamical descalarization with a jump during black hole merger
Creators: name: Doneva, Daniela D.
name: Vañó-Viñuales, Alex
name: Yazadjiev, Stoytcho S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Black holes in scalar-Gauss-Bonnet gravity are prone to scalarization, that is a spontaneous development of scalar hair for strong enough spacetime curvature while the weak field regime of the theory coincides with general relativity. Since large spacetime curvature is associated with smaller black hole masses, the merging of black holes can lead to dynamical descalarization. This is a spontaneous release of the scalar hair of the newly formed black hole in case its mass is above the scalarization threshold. Depending on the exact form of the Gauss-Bonnet coupling function, the stable scalarized solutions can be either continuously connected to the Schwarzschild black hole, or the transitions between the two can happen with a jump. By performing simulations of black hole head-on collisions in scalar-Gauss-Bonnet gravity prone to dynamical descalization, we have demonstrated that such a jump can be clearly observed in the accumulated gravitational wave data of multiple merger events with different masses. The distinct signature in the gravitational wave signal will share similarities with the effects expected from first order matter phase transitions happening during neutron star binary mergers.
description: 8 pages, 3 figures
$B^0-\bar B^0$ entanglement for an ideal experiment on the direct CP violation $ϕ_3/γ$ phase
Creators: name: Bernabeu, Jose
name: Botella, Francisco J.
name: Nebot, Miguel
name: Segarra, Alejandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: $B^0$--$\bar B^0$ Entanglement offers a conceptual alternative to the single charged B-decay asymmetry for the measurement of the direct CP violating $γ/ϕ_3$ phase. With $f=J/ΨK_L,J/ΨK_S$ and $g=(ππ)^0,(ρ_Lρ_L)^0$ the 16 time-ordered double decay rate Intensities to $(f, g)$ depend on the relative phase between the the $f$- and $g$-decay amplitudes given by $γ$ at tree-level. Several constraining consistencies appear. An intrinsic accuracy of the method at the level of $\pm 1^\circ$ could be achievable at Belle-II with an improved determination of the penguin amplitude to $g$-channels from existing facilities.
description: 6 pages, 1 figure
Plane-Wave-Based Stochastic-Deterministic Density Functional Theory for Extended Systems
Creators: name: Liu, Qianrui
name: Chen, Mohan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Traditional finite-temperature Kohn-Sham density functional theory (KSDFT) has an unfavorable scaling with respect to the electron number or at high temperatures. The evaluation of the ground-state density in KSDFT can be replaced by the Chebyshev trace (CT) method. In addition, the use of stochastic orbitals within the CT method leads to the stochastic density functional theory [Phys. Rev. Lett. 111, 106402 (2013)] (SDFT) and its improved theory, mixed stochastic-deterministic density functional theory [Phys. Rev. Lett. 125, 055002 (2020)] (MDFT). We have implemented the above four methods within the first-principles package ABACUS. All of the four methods are based on the plane-wave basis set with the use of norm-conserving pseudopotentials and the periodic boundary conditions with the use of $k$-point sampling in the Brillouin zone. By using the KSDFT calculation results as benchmarks, we systematically evaluate the accuracy and efficiency of the CT, SDFT, and MDFT methods via examining a series of physical properties, which include the electron density, the free energy, the atomic forces, stress, and density of states for a few condensed phase systems. The results suggest that our implementations of CT, SDFT, and MDFT not only reproduce the KSDFT results with a high accuracy, but also exhibit several advantages over the tradition KSDFT method. We expect these methods can be of great help in studying high-temperature and large-size extended systems such as warm dense matter and dense plasma.
Non-equilibrium cumulants within model A from crossover to first-order phase transition side
Creators: name: Jiang, Lijia
name: Chao, Jingyi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the non-equilibrium cumulants of the chiral order parameter field (σ field) in different phase transition scenarios via Langevin dynamics. Cumulants up to fourth-order have been calculated based on the spacetimedependent σ configurations from the event-by-event numerical simulations. By limiting the cooling of the system in a Hubble-like way, the out-of-equilibrium cumulants illustrate clear memory effects during the evolution. Both the signs and the magnitudes of the high-order cumulants differ from the equilibrium ones below the phase transition temperature. Especially, the dynamical cumulants grow more intensively from the first-order phase transition side than they do from the crossover side. In addition, analysis of the high-order offequilibrium cumulants on the hypothetical freeze-out lines present non-monotonic curves in the large chemical potential region.
description: 9 pages, 8 figures, more discussions are added, title changed, published in EPJA
Constructing triple categories of cybernetic processes
Creators: name: Capucci, Matteo
name: Myers, David Jaz
Publisher: name: Zenodo
Year: 2023
Subjects: categorical cybernetics
applied category theory
categorical systems theory

description: We illustrate a generalized version of the Para construction which allows to systematically construct
 triple categories of cybernetic processes, as well as further extensions thereof to cybernetic systems.
 While Para works for actions in categories, our generalization works for any suitably complete
 2-category and for more general notions of action (what we call ‘oplax dependent actegories’). To
 exemplify the construction, we show how applying our generalized Para to the self-action of a
 monoidal double category of lenses and charts produces a triple category of parametric lenses, lenses
 and charts which improves on Spivak and Shapiro’s Org
Professionskompetenzen zum Lehren Mathematischen Modellierens in der Primarstufe erfassen.
Creators: name: Nehrkorn, Clara
name: Jenssen, Lars
name: Borromeo Ferri, Rita
name: Eilerts, Katja
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2023
Subjects: subject: Professionskompetenzen
subject: Testentwicklung
subject: Grundschule
subject: Modellieren
subject: Lehrerbildung (1., 2. und 3. Phase)
subject: interdisziplinär
subject: 510

description: Mathematisches Modellieren ist als eine der prozessbezogenen Kompetenzen der Bildungsstandards ab der Grundschule in den Mathematikunterricht zu integrieren (KMK, 2004). Eine Analyse der Grundschul-Rahmenlehrpläne auf Vorgaben zu Mathematischem Modellieren, ergibt flächendeckende Übereinstimmungen. Jeweils mindestens 12 der 15 Lehrpläne fordern gemeinsam die Förderung der folgenden Fähigkeiten:  relevante Informationen aus Sachtexten und anderen Darstellungen entnehmen  Sachsituationen in die Sprache der Mathematik übersetzen  Bearbeiten und Lösen der innermathematischen Aufgaben innerhalb eines aufgestellten Modells  Beziehen der Lösung auf die gegebene Sachsituation  Sachaufgaben und Rechengeschichten erfinden zu vorgegebenen Termen, Gleichungen oder Tabellen  Prüfen der Richtigkeit und Plausibilität der Lösung und des Modells Die anschlussfähige Förderung von Modellierungskompetenzen kann sowohl durch Modellierungsaufgaben an Themen aus der Lebenswelt der Grundschulkinder als auch mit Übungen zum Aufbau der einzelnen Teilkompetenzen umgesetzt werden (Brand, 2014; Maaß, 2009). Gerade in den ersten Jahrgängen der Grundschule und bereits davor, wie Eilerts und van der Velden (2018) zeigen, kann hierbei mit Hilfe von Materialeinsatz überwiegend auf enaktiver Ebene gearbeitet werden.
Gas and Stellar Motions and Observational Signatures of Co-Rotating Spiral Arms
Creators: name: Kawata, Daisuke
name: Hunt, Jason A. S.
name: Grand, Robert J. J.
name: Pasetto, Stefano
name: Cropper, Mark
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have observed a snapshot of our N-body/Smoothed Particle Hydrodynamics simulation of a Milky Way-sized barred spiral galaxy in a similar way to how we can observe the Milky Way. The simulated galaxy shows a co-rotating spiral arm, i.e. the spiral arm rotates with the same speed as the circular speed. We observed the rotation and radial velocities of the gas and stars as a function of the distance from our assumed location of the observer at the three lines of sight on the disc plane, (l, b) = (90, 0), (120, 0) and (150,0) deg. We find that the stars tend to rotate slower (faster) behind (at the front of) the spiral arm and move outward (inward), because of the radial migration. However, because of their epicycle motion, we see a variation of rotation and radial velocities around the spiral arm. On the other hand, the cold gas component shows a clearer trend of rotating slower (faster) and moving outward (inward) behind (at the front of) the spiral arm, because of the radial migration. We have compared the results with the velocity of the maser sources from Reid et al. (2014), and find that the observational data show a similar trend in the rotation velocity around the expected position of the spiral arm at l = 120 deg. We also compared the distribution of the radial velocity from the local standard of the rest, V_LSR, with the APOGEE data at l = 90 deg as an example.
description: 10 pages, 7 figures, accepted for publication in MNRAS
Dolomitization related to fracture porosity evolution: a case study of carbonate outcrops in Nam Maholan Formation
Creators: name: Doungdech Kananusak
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2020
Subjects: Dolomite, Dolomitization, Permian carbonates NE Thailand, Nam Maholan Formation

description: Bulletin of Earth Sciences of Thailand (BEST), 12, 2, 57-67
The Radcliffe Wave as the gas spine of the Orion Arm
Creators: name: Swiggum, Cameren
name: Alves, João
name: D'Onghia, Elena
name: Benjamin, Robert A.
name: Thulasidharan, Lekshmi
name: Zucker, Catherine
name: Poggio, Eloisa
name: Drimmel, Ronald
name: Gallagher, John S.
name: Goodman, Alyssa
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Radcliffe Wave is a $\sim3$ kpc long coherent gas structure containing most of the star-forming complexes near the Sun. In this Letter we aim to find a Galactic context for the Radcliffe Wave by looking into a possible relationship between the gas structure and the Orion (Local) Arm. We use catalogs of massive stars and young open clusters based on \textit{Gaia} EDR3 astrometry, in conjunction with kiloparsec-scale 3D dust maps, to investigate the Galactic \textit{XY} spatial distributions of gas and young stars. We find a quasi-parallel offset between the luminous blue stars and the Radcliffe Wave, in that massive stars and clusters are found essentially inside and downstream from the Radcliffe Wave. We examine this offset in the context of color gradients observed in the spiral arms of external galaxies, where the interplay between density wave theory, spiral shocks, and triggered star formation has been used to interpret this particular arrangement of gas/dust and OB stars, and outline other potential explanations as well. We hypothesize that the Radcliffe Wave constitutes the gas reservoir of the Orion (Local) Arm, and presents itself as a prime laboratory to study the interface between Galactic structure, the formation of molecular clouds in the Milky Way, and star formation.
description: Published in A&A Letters
DETERMINANTS OF COMPETITIVENESS OF DAIRY ENTERPRISES ON THE EXAMPLE OF THE WIELKOPOLSKA REGION
Creators: name: PAULINA LUIZA, WIZA
name: PAULINA LUIZA, WIZA
Publisher: name: Unknown
Year: 2022
Subjects: subject: Agribusiness
subject: dairy enterprises
subject: milk market
subject: competitiveness
subject: economic and financial evaluation
subject: regionalization
subject: Wielkopolska Region

description: The aim of the article is to determine the competitive potential of selected dairy enterprises located in the Wielkopolska Region and establish the determinants of competitiveness of the researched entities. The selection of the research sample was purposive and was determined by two assumptions. First of all, the Wielkopolska Region, according to the data of the Central Statistical Office, takes third place in terms of milk production in Poland, where the cooperative character of milk processing prevails. This region has the largest number of dairy cooperatives, i.e., 26 cooperative dairy plants operated in 2019, constituting a share, in the whole industry, at a level of 16%. Secondly, for empirical research, only district dairy cooperatives located in the Wielkopolska Region were selected, which, since 2007 to 2019, submitted their financial statements to the Emerging Markets Information Service (EMIS) database, conducted business activities and were engaged in milk processing and the production of dairy products. At the end of 2019, there were fifteen entities that met the above criteria, and this group was selected for further empirical analysis. The conducted research shows that dairy cooperatives, having short term financial liabilities and an average income from sales, have the best competitive potential. The weakest competitive potential was achieved by cooperatives with long-term financial liabilities and a low profitability of sales of offered products. The evaluation of competitive potential showed that the direction of influence of evaluated elements of competitive potential was not clearly defined. It means that we should think over the construction of the synthetic measure for the evaluation of the competitive potential of dairy enterprises, which, apart from the financial condition, will consider other areas i.e., the production potential, investment outlays borne by an enterprise for modernization, the purchase volume of milk and the number of suppliers cooperating with a given enterprise.