cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
X-ray Constraints on Galaxy-Gas-Jet Interactions in the Dumbbell Galaxies NGC4782 and NGC4783 in the LGG316 Group
Creators: name: Machacek, M. E.
name: Kraft, R. P.
name: Jones, C.
name: Forman, W. R.
name: Hardcastle, M. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results from a 49.3 ks Chandra X-ray observation of the strongly interacting dumbbell galaxies NGC4782(3C278) and NGC4783 that constrain the kinematics of the interaction and models for bending the radio jets associated with NGC4782. The galaxies are embedded in an approximately spherical distribution of group gas, centered on NGC4782,that is nearly isothermal with mean kT ~ 1.4+/- 0.4 keV. The X-ray morphology suggests that NGC4783 is infalling into a single, massive galaxy group (LGG316) with NGC4782 nearly at rest at the center of the group potential.NGC4783 shows a sharp X-ray surface brightness edge (cold front) to the east and a ~15 kpc ram-pressure-stripped tail to the west. Analysis of this cold front indicates NGC4783 is moving east with a total velocity ~870+270-400 km/s (Mach ~1.4+0.5-0.7) at an inclination angle ~46 deg.(>33 deg.)towards us with respect to theplane of the sky. A ~45Myr old X-ray cavity, with enthalpy of 4.4 x 10^{57}ergs, coincides with the eastern radio lobe of 3C278. X-ray knots are found on both the radio jet and counter-jet, coincident with peaks in the radio emission. Assuming a light, mildly relativistic jet in 3C278, ram pressure velocities of 100-200 km/s impacting the eastern jet and ~170 km/s acting on the western radio lobe are sufficient to produce their observed bending. These velocities may be caused by bulk motions established in the IGM by the high velocity interaction between the galaxies, by the motion of NGC4782 relative to the IGM, or both.
description: 18 pages, 15 figures, ApJ accepted, revisions to conform to published version, new figures,revised tables, improved discussion of backgrounds and uncertainties
Additional file 1 of Comparative analysis of perinatal outcomes and birth defects amongst adolescent and older Ugandan mothers: evidence from a hospital-based surveillance database
Creators: name: Serunjogi, Robert
name: Barlow-Mosha, Linda
name: Mumpe-Mwanja, Daniel
name: Dhelia Williamson
name: Valencia, Diana
name: Tinker, Sarah C.
name: Adler, Michelle R.
name: Namale-Matovu, Joyce
name: Kalibbala, Dennis
name: Nankunda, Jolly
name: Nabunya, Evelyn
name: Birabwa-Male, Doreen
name: Josaphat Byamugisha
name: Musoke, Philippa
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. Definition of Birth defects
An interesting case of the formation and evolution of a barred galaxy in the cosmological context
Creators: name: Lokas, Ewa L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Elongated, bar-like galaxies without a significant disk component, with little rotation support and no gas, often form as a result of tidal interactions with a galaxy cluster, as was recently demonstrated using the IllustrisTNG-100 simulation. Galaxies that exhibit similar properties are, however, also found to be infalling into the cluster for the first time. We use the same simulation to study in detail the history of such a galaxy over cosmic time in order to determine its origin. The bar appears to be triggered at t=6.8 Gyr by the combined effect of the last significant merger with a subhalo and the first passage of another dwarf satellite, both ten times less massive than the galaxy. The satellites deposit all their gas in the galaxy, contributing to its third and last star-formation episode, which perturbs the disk and may also contribute to the formation of the bar. The galaxy then starts to lose its gas and dark matter due to its passage near a group of more massive galaxies. The strongest interaction involves a galaxy 22 times more massive, leaving the barred galaxy with no gas and half of its maximum dark matter mass. During this time, the bar grows steadily, seemingly unaffected by the interactions, although they may have aided its growth by stripping the gas. The studied galaxy, together with two other similar objects briefly discussed in this letter, suggest the existence of a new class of early-type barred galaxies and thereby demonstrate the importance of interactions in galaxy formation and evolution.
description: 5 pages, 4 figures, accepted for publication in A&A Letters
Diffusion of particles in an expanding sphere with an absorbing boundary
Creators: name: Forsberg, Karl
name: Massih, Ali R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the problem of particles undergoing Brownian motion in an expanding sphere whose surface is an absorbing boundary for the particles. The problem is akin to that of the diffusion of impurities in a grain of polycrystalline material undergoing grain growth. We solve the time dependent diffusion equation for particles in a d-dimensional expanding sphere to obtain the particle density function (function of space and time). The survival rate or the total number of particles per unit volume as a function of time is evaluated. We have obtained particular solutions exactly for the case where d=3 and a parabolic growth of the sphere. Asymptotic solutions for the particle density when the sphere growth rate is small relative to particle diffusivity and vice versa are derived.
description: 12 pages. To appear in J. Phys. A: Math. Theor. 41 (2008)
Renormalized mean-field theory for a two-component Fermi gas with s-wave interactions
Creators: name: von Stecher, Javier
name: Greene, Chris H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A method is introduced to renormalize the zero-range interaction for use in mean-field and many-body theory, starting from two-body calculations. The density-renormalized delta-function interaction is then applied using mean-field theory to a two-component fermion gas, and compared with diffusion Monte Carlo simulations and conventional mean-field calculations. In the unitarity limit, the equation of state exhibits the expected behavior $μ\proptoρ^{2/3}$, with a parameter $β= -0.492$, which is consistent with recent experiments \cite{partridge2006pap, bourdel2004esb, kinast2005hcs, Stewart06}.
description: 11 pages, 9 figures, 2 tables
Μοντελοποίηση διαδικασιών του οδηγού PMBOK με τη χρήση της γλώσσας UML
Creators: name: Ζαχαρία, Αγγελική Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Διοίκηση έργων
Διεργασίες διοίκησης έργων
PMBOK
UML
Μοντελοποίηση
Project Management processes
Modeling

description: Η Διοίκηση Έργων παραμένει ένας από τους κρισιμότερους συντελεστές στηνεπιτυχή και ποιοτική διεκπεραίωση των δραστηριοτήτων ενός οργανισμού. Ωστόσο, ηαυξανόμενη πολυπλοκότητα τόσο των έργων όσο και των προσπαθειών ανάπτυξήςτους αλλά και του κόστους τους καθιστά δύσκολο τον έλεγχό των έργων χωρίς τηνυποστήριξη επίσημων πρακτικών. Συνεπώς, η κατανόηση και η υιοθέτησημεθοδολογιών διοίκησης έργων είναι απαραίτητη προκειμένου να επιτραπεί στιςεπιχειρήσεις να μεγιστοποιήσουν την αξία των έργων για τους οργανισμούς. Η οπτικήμοντελοποίηση των προς χρήση διαδικασιών συμβάλλει στην περαιτέρω τεκμηρίωσηκαι κατανόηση της πολυπλοκότητας. Δεδομένου ότι η διοίκηση έργων αφορά τοσύνολο ενός οργανισμού, ένα μοντέλο μπορεί να βοηθήσει τους διάφορουςσυμμέτοχους να κατανοήσουν το έργο από ποικίλες όψεις και επιπλέον ναεπικοινωνήσουν τις απόψεις τους ευκολότερα. Ο Οδηγός PMBOK θεωρείται σήμεραένα από τα πιο θεμελιώδη εργαλεία των επιχειρήσεων το οποίο συμπυκνώνει όλες τιςέννοιες της διοίκησης έργων σε ένα εκ των πραγμάτων παγκόσμιο πρότυπο για τηβιομηχανία.Η εργασία αυτή παρουσιάζει ένα UML μοντέλο των διαδικασιών διοίκησης έργωνπου ορίζει ο Οδηγός PMBOK. Το μοντέλο παρέχει τρόπους έκφρασης τωνδιαδικασιών διοίκησης έργων σε σχέση με τις επιχειρηματικές δραστηριότητες και τησυνεργατική συμπεριφορά.
description: Project management remains one of the most crucial endeavours to the successful delivery of organization activities. However, the increased complexities of projects and their development efforts and costs make them tough to control without formal practices. Thus, the understanding and adoption of project management processes can allow companies to maximize the project's value to the organization through the correct requirements that generate the correct product in order to meet the customer's needs preciously and the inclusion of necessary features that reduce the costs. Indeed, visual modelling of the processes can further help to document and comprehend complexity. The PMBOK Guide is now considered to be one of the most essential tools in the profession that encapsulates all the project management concepts in a de facto global standard for the industry. This thesis presents a UML model of the project management processes that the PMBOK Guide introduces. The model provides ways of expressing the processes in terms of business activities and collaborative behaviour.
L’algoritmo di Poe (e il destino del logos)
Creators: name: Chiodo, Simona
Publisher: name: Lebenswelt. Aesthetics and philosophy of experience.
Year: 2019

description: The aim of the article is reasoning on an analogy which may help understand what an algorithm can do and, especially, cannot do. The analogy is given by Poe’s Philosophy of composition, in which, by making reference to his poem The raven, he argues for a singular strategy of composition we may compare with an algorithmic writing. Keywords Algorithm, Philosophy of technology, Poe
description: Lebenswelt. Aesthetics and philosophy of experience., N. 14 (2019)
Optimization for Medical Image Segmentation: Theory and Practice when evaluating with Dice Score or Jaccard Index
Creators: name: Eelbode, Tom
name: Bertels, Jeroen
name: Berman, Maxim
name: Vandermeulen, Dirk
name: Maes, Frederik
name: Bisschops, Raf
name: Blaschko, Matthew B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In many medical imaging and classical computer vision tasks, the Dice score and Jaccard index are used to evaluate the segmentation performance. Despite the existence and great empirical success of metric-sensitive losses, i.e. relaxations of these metrics such as soft Dice, soft Jaccard and Lovasz-Softmax, many researchers still use per-pixel losses, such as (weighted) cross-entropy to train CNNs for segmentation. Therefore, the target metric is in many cases not directly optimized. We investigate from a theoretical perspective, the relation within the group of metric-sensitive loss functions and question the existence of an optimal weighting scheme for weighted cross-entropy to optimize the Dice score and Jaccard index at test time. We find that the Dice score and Jaccard index approximate each other relatively and absolutely, but we find no such approximation for a weighted Hamming similarity. For the Tversky loss, the approximation gets monotonically worse when deviating from the trivial weight setting where soft Tversky equals soft Dice. We verify these results empirically in an extensive validation on six medical segmentation tasks and can confirm that metric-sensitive losses are superior to cross-entropy based loss functions in case of evaluation with Dice Score or Jaccard Index. This further holds in a multi-class setting, and across different object sizes and foreground/background ratios. These results encourage a wider adoption of metric-sensitive loss functions for medical segmentation tasks where the performance measure of interest is the Dice score or Jaccard index.
description: 15 pages, 14 figures, accepted for publication in IEEE Transactions on Medical Imaging (2020)
Exponential Growth Constants for Spanning Forests on Archimedean Lattices: Values and Comparisons of Upper Bounds
Creators: name: Chang, Shu-Chiuan
name: Shrock, Robert
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We compare our upper bounds on the exponential growth constant $ϕ(Λ)$ characterizing the asymptotic behavior of spanning forests on Archimedean lattices $Λ$ with recently derived upper bounds. Our upper bounds on $ϕ(Λ)$, which are very close to the respective values of $ϕ(Λ)$ that we have calculated, are shown to be significantly better for these lattices than the new upper bounds.
description: 5 pages, latex. arXiv admin note: text overlap with arXiv:2002.07150, arXiv:1810.07357
Σχέσεις κράτους και θρησκείας στις Ηνωμένες Πολιτείες της Αμερικής
Creators: name: Γαβρά, Μαριαλένα Ηλία
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Σχέσεις
Θρησκεία
Κράτος
Ηνωμένες Πολιτείες της Αμερικής
Κοινωνία
Ανώτατο Δικαστήριο των ΗΠΑ
Relationship
Religion
Society
Politics
United States of America
U.S. Supreme Court

description: Η εργασία πραγματεύεται την θέση της θρησκείας στην κοινωνία των ΗΠΑ και τις σχέσεις που αναπτύσσονται μεταξύ θρησκείας και κράτους. Εισαγωγικά, γίνεται αναφορά στην Πρώτη Τροποποίηση του Συντάγματος του ΗΠΑ, σύμφωνα με την οποία δύο ρήτρες εξασφαλίζουν τη θρησκευτική ελευθερία : η ρήτρα περί μη καθιέρωσης θρησκείας απαγορεύει στην κυβέρνηση να θεσπίσει νομοθεσία, η οποία καθιερώνει μια επίσημη θρησκεία ή την προτίμηση μιας θρησκείας έναντι κάποιας άλλης, η δε ρήτρα της ελεύθερης άσκησης της θρησκείας απαγοερεύει στην κυβέρνηση να αναμειχθεί στην άσκηση της θρησκείας κάποιου. Στο δεύτερο μέρος της εργασίας καταγράφονται τα ιστορικά δεδομένα στο πλαίσιο των οποίων θεσπίστηκε το Σύνταγμα των ΗΠΑ, ενώ στο τρίτο μέρος παρατίθεται ικανός αριθμός αποφάσεων του Ανωτάτου Δικαστηρίου, του αρμόδιου δηλαδή οργάνου για την ερμηνεία του βαθμού της προστασίας που παρέχεται στις ως άνω δύο συνταγματικές αρχές. Στο τέταρτο μέρος της εργασίας περιγράφονται οι διάφορες εκφάνσεις που λαμβάνουν οι σχέσεις μεταξύ θρησκείας, πολιτών και πολιτικής στις ΗΠΑ σήμερα (σημαντικός κοινωνικός ρόλος της θρησκείας, αμερικανικός θρησκευτικός φονταμενταλισμός και χριστιανική δεξιά, η θρησκεία ως μεγάλη επιχείρηση κ.α.). Στο τελευταίο μέρος της εργασίας καταγράφονται κάποιες τελικές παρατηρήσεις, ενώ διατυπώνονται και συμπεράσματα σχετικά με την αιτιολόγηση του φαινομένου της έντονης θρησκευτικότητας σε τμήματα της κοινωνίας των ΗΠΑ
description: The thesis traces the current state of religion in the society of the United States of America and investigates the relationship between religion and the State. In the introduction there are references to the First Amendement of the United States Constitution, in which two clauses guarantee the freedom of religion. These two clauses prohibit the enactment of a law respecting the establishment of religion and the restriction of the free exercise of religion. In the second part of this work there is a historical review of the Constitution making process with emphasis in the religious context of the times. During the third part, there is an extended analysis of numerous Supreme Court decisions on the two previously mentioned constitutional clauses. In the next part, there is a detailed description of the various aspects of the relationship between religion and politics in the United States today. Finally, the last part contains interesting observations and cites of the final conclusions for better understanding of higher religious attendance by specific groups of the American Society
The development of multiple line transmission sources for SPECT
Creators: name: Sitek, Arkadiusz
Publisher: name: University of British Columbia
Year: 2009

description: In this work a new kind of transmission source for SPECT imaging, based on multiple line sources, is presented. The source may be used for either simultaneous or sequential SPECT transmission imaging to measure patient specific attenuation maps. Two different, new transmission sources based on the multiple line concept, the collimated line sources and the multiple line array, were proposed and tested using computer simulations. Based on simulations, prototypes of the transmission sources were built, and series of experiments were performed. Computer simulations and experiments showed that multiple line transmission sources provided accurate attenuation maps. Compared with other transmission sources, the multiple line transmission sources do not require complicated hardware or expensive maintenance, but still give good quality attenuation maps. The multiple line array transmission source has been adopted for commercial use by Siemens Medical Systems with their ecam SPECT camera.
"Heiligster Gebieter!" - Alexander Solschenizyns Fastenbrief an den Moskauer Patriarchen Pimen
Creators: name: Friedrich, Hans-Peter
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 46 Nr. 4 (1997): Ökumenische Rundschau, Band 46, Heft 4
Very Large Array observations of the mini-halo and AGN feedback in the Phoenix cluster
Creators: name: Timmerman, R.
name: van Weeren, R. J.
name: McDonald, M.
name: Ignesti, A.
name: McNamara, B. R.
name: Hlavacek-Larrondo, J.
name: Röttgering, H. J. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: (Abridged) The relaxed cool-core Phoenix cluster (SPT-CL J2344-4243) features an extremely strong cooling flow, as well as a mini-halo. Strong star-formation in the brightest cluster galaxy indicates that AGN feedback has been unable to inhibit this cooling flow. We have studied the strong cooling flow in the Phoenix cluster by determining the radio properties of the AGN and its lobes. In addition, we use spatially resolved observations to investigate the origin of the mini-halo. We present new Very Large Array 1-12 GHz observations of the Phoenix cluster which resolve the AGN and its lobes in all four frequency bands, and resolve the mini-halo in L- and S-band. Using our L-band observations, we measure the total flux density of the radio lobes at 1.5 GHz to be $7.6\pm0.8$ mJy, and the flux density of the mini-halo to be $8.5\pm0.9$ mJy. Using L- and X-band images, we produce the first spectral index maps of the lobes from the AGN and measure the spectral indices of the northern and southern lobes to be $-1.35\pm0.07$ and $-1.30\pm0.12$, respectively. Similarly, using L- and S-band data, we map the spectral index of the mini-halo, and obtain an integrated spectral index of $α=-0.95 \pm 0.10$. We find that the mini-halo is most likely formed by turbulent re-acceleration powered by sloshing in the cool core due to a recent merger. In addition, we find that the feedback in the Phoenix cluster is consistent with the picture that stronger cooling flows are to be expected for massive clusters like the Phoenix cluster, as these may feature an underweight supermassive black hole due to their merging history. Strong time variability of the AGN on Myr-timescales may help explain the disconnection between the radio and the X-ray properties of the system. Finally, a small amount of jet precession likely contributes to the relatively low ICM re-heating efficiency of the mechanical feedback.
description: 12 pages, 14 figures. Accepted for publication in A&A
Additional file 11 of STAU2 protein level is controlled by caspases and the CHK1 pathway and regulates cell cycle progression in the non-transformed hTERT-RPE1 cells
Creators: name: Condé, Lionel
name: Yulemi Gonzalez Quesada
name: Bonnet-Magnaval, Florence
name: Beaujois, Rémy
name: DesGroseillers, Luc
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 11: Table S4. List of STAU2 interactors involved in DNA repair and/or replication pathways. Proteins linked to the CHK1 pathway are indicated.
Source data for geographic maps showing sample locations and disease resistances of sea beet accessions (Beta vulgaris ssp. maritima)
Creators: name: Wascher, Felix
name: Stralis-Pavese, Nancy
name: McGrath, Mitch
name: Schulz, Britta
name: Himmelbauer, Heinz
name: Dohm, Juliane
Publisher: name: figshare
Year: 2022
Subjects: subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences

description: HTML files for the geographic maps provided with the publication "Genomic distances reveal relationships of wild and cultivated beets".
 The maps can be viewed at https://bvseq.boku.ac.at/.
Analysis of a Gibbs sampler method for model based clustering of gene expression data
Creators: name: Joshi, Anagha
name: Van de Peer, Yves
name: Michoel, Tom
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: Over the last decade, a large variety of clustering algorithms have been developed to detect coregulatory relationships among genes from microarray gene expression data. Model based clustering approaches have emerged as statistically well grounded methods, but the properties of these algorithms when applied to large-scale data sets are not always well understood. An in-depth analysis can reveal important insights about the performance of the algorithm, the expected quality of the output clusters, and the possibilities for extracting more relevant information out of a particular data set. We have extended an existing algorithm for model based clustering of genes to simultaneously cluster genes and conditions, and used three large compendia of gene expression data for S. cerevisiae to analyze its properties. The algorithm uses a Bayesian approach and a Gibbs sampling procedure to iteratively update the cluster assignment of each gene and condition. For large-scale data sets, the posterior distribution is strongly peaked on a limited number of equiprobable clusterings. A GO annotation analysis shows that these local maxima are all biologically equally significant, and that simultaneously clustering genes and conditions performs better than only clustering genes and assuming independent conditions. A collection of distinct equivalent clusterings can be summarized as a weighted graph on the set of genes, from which we extract fuzzy, overlapping clusters using a graph spectral method. The cores of these fuzzy clusters contain tight sets of strongly coexpressed genes, while the overlaps exhibit relations between genes showing only partial coexpression.
description: 8 pages, 7 figures
L'affidamento del contribuente nei rapporti con l'amministrazione finanziaria
Creators: name: D'Alessandro, Fabrizio
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2015

description: Lo studio, muovendo dalla certezza del diritto tradizionalmente intesa come condizione essenziale di esistenza dell'ordinamento nonché della nota incertezza del diritto tributario, si incammina su due diversi percorsi. 
Il primo concerne le caratteristiche nell'ambito tributario della retroattività legislativa sfavorevole e il ruolo della buona fede e dell'affidamento come limiti a detta retroattività.
Il secondo investe, invece, il problema dell'efficacia dell'attività interpretativa dell'amministrazione finanziaria che si esplica attraverso circolari e pareri.
La tematica in esame viene, inoltre, affrontata anche secondo la prospettiva comunitaria, con particolare riferimento all'applicazione del diritto a una buona amministrazione nei procedimenti tributari.
Self-Interaction Correction in Water-Ion Clusters
Creators: name: Wagle, Kamal
name: Santra, Biswajit
name: Bhattarai, Puskar
name: Shahi, Chandra
name: Pederson, Mark R.
name: Jackson, Koblar A.
name: Perdew, John P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We study the importance of self-interaction errors in density functional approximations for various water-ion clusters. We have employed the Fermi-Löwdin orbital self-interaction correction (FLOSIC) method in conjunction with LSDA, PBE, and SCAN to describe binding energies of hydrogen-bonded water-ion clusters, \textit{i.e.}, water-hydronium, water-hydroxide, water-halide, as well as non-hydrogen-bonded water-alkali clusters. In the hydrogen-bonded water-ion clusters, the building blocks are linked by hydrogen atoms, although the links are much stronger and longer-ranged than the normal hydrogen bonds between water molecules, because the monopole on the ion interacts with both permanent and induced dipoles on the water molecules. We find that self-interaction errors overbind the hydrogen-bonded water-ion clusters and that FLOSIC reduces the error and brings the binding energies into closer agreement with higher-level calculations. The non-hydrogen-bonded water-alkali clusters are not significantly affected by self-interaction errors. Self-interaction corrected PBE predicts the lowest mean unsigned error in binding energies ($\leq$ 50 meV/\ce{H2O}) for hydrogen-bonded water-ion clusters. Self-interaction errors are also largely dependent on the cluster size, and FLOSIC does not accurately capture the subtle variation in all clusters, indicating the need for further refinement.
description: 13 pages, 9 figures
Νευρωνικά δίκτυα και εφαρμογές
Creators: name: Τσουχνικά, Μαρία Αριστοφάνη
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Νευρωνικά δίκτυα
Πολυεπίπεδος αισθητήρες
Αλγόριθμος οπισθοδιάδοσης
Προσέγγιση συναρτήσεων
Πρόβλεψη χαοτικών χρονοσειρών
Ανακατασκευή ελκυστή
Neutral network
Multilayer perception
Backpropagation of error
Approxiamation of a function
Prediction of times series
Attractor of chaotic time series

description: Στην εργασία αυτή παρουσιάζονται παρουσιάζονται τα κύρια χαρακτηριστικά των τεχνητών νευρωνικών δικτύων, οι δυνατότητες και οι αδυναμίες τους, καθώς και κάποιες βασικές τροποποιήσεις που έπαιξαν σημαντικό ρόλο στην εξέλιξή τους από την πρώτη εμφάνιση μέχρι και σήμερα.Αρχικά, δίνονται οι βασικές έννοιες που διέπουν τα τεχνητά νευρωνικά δίκτυα και στη συνέχεια αναλύεται η δομή και η λειτουργία ενός συγκεκριμένου τύπου νευρωνικού δικτύου, του πολυεπίπεδου αισθητήρα. Η εργασία ολοκληρώνεται με τρεις εφαρμογές, όπου χρησιμοποιούνται πολυεπίπεδοι αισθητήρες για να επιλυθεί ένα πρόβλημα ταξινόμησης και ένα πρόβλημα προσέγγισης συνάρτησης και τέλος να εξεταστεί η χρησιμότητά τους στην πρόβλεψη και την ανακατασκευή του ελκυστή μιας χαοτικής χρονοσειράς.
description: In this paper, I present the main features of the artificial neural networks, their abilities and shortcomings, as well as some of the basic modifications that played an important part in their evolution up until this day. Firstly, I introduce the basic principles that rule the artificial neural networks and I proceed to analyze the structure and the function of a specific type of such a network, namely the multilayer perceptron. The paper is completed with three applications, where I use a multilayer perceptron to solve a classification and a function approximation problem and lastly to examine its use in the prediction and reconstruction of the attractror of a chaotic time series.
Investigating resonant low-energy electron attachment to formamide: dynamics of model peptide bond dissociation and other fragmentation channels
Creators: name: Panelli, Guglielmo
name: Moradmand, Ali
name: Griffin, Brandon
name: Swanson, Kyle
name: Weber, Thorsten
name: Rescigno, Thomas N.
name: McCurdy, C. William
name: Slaughter, Daniel S.
name: Williams, Joshua B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report experimental results on three-dimensional momentum imaging measurements of anions generated via dissociative electron attachment to gaseous formamide. From the momentum images, we analyze the angular and kinetic energy distributions for NH$_2^{-}$, O$^{-}$, and H$^{-}$ fragments and discuss the possible electron attachment and dissociation mechanisms for multiple resonances for two ranges of incident electron energies, from 5.3~eV to 6.8~eV, and from 10.0~eV to 11.5~eV. {\it Ab initio} theoretical results for the angular distributions of the NH$_2^{-}$ anion for $\sim$6~eV incident electrons, when compared with the experimental results, strongly suggest that one of the two resonances producing this fragment is a $^2$A$''$ Feshbach resonance.
description: 10 pages, 6 figures
Higher Equations of Motion in N = 1 SUSY Liouville Field Theory
Creators: name: Belavin, A.
name: Zamolodchikov, Al.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Similarly to the ordinary bosonic Liouville field theory, in its N=1 supersymmetric version an infinite set of operator valued relations, the ``higher equations of motions'', holds. Equations are in one to one correspondence with the singular representations of the super Virasoro algebra and enumerated by a couple of natural numbers $(m,n)$. We demonstrate explicitly these equations in the classical case, where the equations of type $(1,n)$ survive and can be interpreted directly as relations for classical fields. General form of the higher equations of motion is established in the quantum case, both for the Neveu-Schwarz and Ramond series.
description: Two references added
Canción titulada Mellañoteñrech, o canción de los espíritus mellañoteñ
Creators: name: Ortiz Potesta, Pedro
name: Santos Granero, Fernando
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: ame

description: Es una canción en el estilo de las canciones sagradas sherareñets, que son canciones vocales femeninas. Transcrita y traducida.
GIS-Based Estimation of Seasonal Solar Energy Potential for Parking Lots and Roads
Creators: name: Nanda, Vishnu Mahesh Vivek
name: Tateosian, Laura
name: Baran, Perver
Publisher: name: arXiv
Year: 2020
Subjects: subject: Other Computer Science (cs.OH)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: The amount of sun cast on roads and parking lots determines the charging opportunities for solar vehicles and impacts the efficiency of conventional vehicles. Estimates of solar energy potential on urban surfaces to assess parking and driving conditions need to account for the shadows cast by surrounding trees and buildings. However, though existing GIS tools can calculate solar potential on surfaces that have buildings and trees, these tools do not estimate the conditions beneath trees and do not consider the seasonal changes in deciduous trees. We introduce a new approach to address these factors using pixel substitution and a light penetration factor. In this paper, we describe how to integrate these techniques into a workflow for computing solar potential estimates for parking and driving conditions. We demonstrate the methodology in an urban setting in North Carolina that includes a mixture of urban structures and trees. We provide code samples so that this workflow is easily repeatable. The solar maps produced with our method are a useful resource for planning solar vehicle parking and routing, and identifying shaded conditions for conventional vehicles.
Gödel-type Solutions in Cubic Galileon Gravity
Creators: name: Nascimento, J. R.
name: Petrov, A. Yu.
name: Porfírio, P.
name: Santos, A. F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We address the homogeneous in space and time (ST-homogeneous) Gödel-type metrics within the cubic galileon theory, a particular class of generalized galileon theories. We check the consistency of such spacetimes for a physically well-motivated matter content, namely, a perfect fluid and an electromagnetic field. In this scenario, we find that the admissible solutions impose constraints on the constant couplings ($c_{i}$'s) of the cubic galileon theory to ensure the consistency. Also, we show the existence of a vacuum completely causal solution.
description: 16 pages
СМЕШЕНИЕ РУССКОГО ЯЗЫКА С УЗБЕКСКИМ: ИСТОРИЧЕСКИЙ КОНТЕКСТ И СОВРЕМЕННЫЕ ТЕНДЕНЦИИ
Creators: name: Муродова, Назира
Publisher: name: Zenodo
Year: 2024

description: Тезис посвящен анализу смешения русского языка с узбекским в контексте исторического и современного развития. В работе рассматриваются ключевые исторические события, оказавшие влияние на языковые контакты между русским и узбекским языками, включая период советской власти и постсоветские изменения. Автор исследует современные тенденции смешения, акцентируя внимание на его проявлениях в разговорной речи, образовании и медиа. Анализируются социолингвистические аспекты, включая влияние социального статуса и культурной идентичности на практики смешения языков. В заключении подчеркивается значимость этих процессов для понимания языкового разнообразия и динамики в Узбекистане.
Diagnosing the interstellar medium of galaxies with far-infrared emission lines I. The [C II] 158 microns line at z~0
Creators: name: Padilla, Andrés Felipe Ramos
name: Wang, Lingyu
name: Ploeckinger, Sylvia
name: van der Tak, F. F. S.
name: Trager, Scott
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Atomic fine structure lines have been detected in the local Universe and at high redshifts over the past decades. The [C II] emission line at 158 $μ$m is an important observable as it provides constraints on the interstellar medium (ISM) cooling processes. We develop a physically motivated framework to simulate the production of far-infrared line emission from galaxies in a cosmological context. This first paper sets out our methodology and describes its first application, simulating the [C II] 158 $μ$m line emission in the local Universe. We combine the output from EAGLE cosmological hydrodynamical simulations with a multi-phase model of the ISM. Gas particles are divided into three phases: dense molecular gas, neutral atomic gas and diffuse ionised gas (DIG). We estimate the [C II] line emission from the three phases using a set of Cloudy cooling tables. Our results agree with previous findings regarding the contribution of these three ISM phases to the [C II] emission. Our model shows good agreement with the observed ${\rm L_{[C II]}}$-star formation rate (SFR) relation in the local Universe within 0.4 dex scatter. The fractional contribution to the [C II] line from different ISM phases depends on the total SFR and metallicity. The neutral gas phase dominates the [C II] emission in galaxies with $\rm{SFR}\sim0.01$-$1\,\rm{M_{\odot}}\,\rm{yr^{-1}}$, but the ionised phase dominates at lower SFRs. Galaxies above solar metallicity exhibit lower ${\rm L_{[C II]}}$/SFR ratios for the neutral phase. In comparison, the ${\rm L_{[C II]}}$/SFR ratio in the DIG is stable when metallicity varies. We suggest that the reduced size of the neutral clouds, caused by increased SFRs, is the likely cause for the ${\rm L_{[C II]}}$ deficit at high infrared luminosities, although EAGLE simulations do not reach these luminosities at $z=0$.
description: Accepted for publication in A&A; 16 pages, 11 figures, 4 tables (plus appendix)
Material Optimization of Potential High-$T_{\text{c}}$ Superconducting Single-layer Cuprates
Creators: name: Teranishi, Shingo
name: Nishiguchi, Kazutaka
name: Kusakabe, Koichi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigated the material parameters of several single-layer cuprates, including those with fluorinated buffer layers, with the aim of identifying possible high-temperature superconductors. To evaluate the material parameters, we use the Wannierization techniques and the constrained random phase approximation. The obtained single-band Hubbard models are studied using the fluctuation-exchange approximation. Comparison among several cuprates reveals unknown high-$T_{\text{c}}$ superconductors. In, Ga, Al, and Cd compounds in particular show the potential to exhibit higher-$T_{\text{c}}$ superconductivity than Hg1201.
description: 6 pages, 3 figures, to be submitted in Journal of the Physical Society of Japan
Spectra and decays of hybrid charmonia
Creators: name: Kalashnikova, Yu. S.
name: Nefediev, A. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: QCD string model is employed to calculate the masses and spin splittings of lowest charmonium hybrid states with a magnetic gluon. Relative decay rates into various S- and P-wave D-meson pairs are calculated for these hybrids.
description: RevTeX4, 19 pages, introduction extended, version to appear in Phys.Rev.D
Consistency testing for robust phase estimation
Creators: name: Russo, Antonio E.
name: Kirby, William M.
name: Rudinger, Kenneth M.
name: Baczewski, Andrew D.
name: Kimmel, Shelby
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistics Theory (math.ST)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present an extension to the robust phase estimation protocol, which can identify incorrect results that would otherwise lie outside the expected statistical range. Robust phase estimation is increasingly a method of choice for applications such as estimating the effective process parameters of noisy hardware, but its robustness is dependent on the noise satisfying certain threshold assumptions. We provide consistency checks that can indicate when those thresholds have been violated, which can be difficult or impossible to test directly. We test these consistency checks for several common noise models, and identify two possible checks with high accuracy in locating the point in a robust phase estimation run at which further estimates should not be trusted. One of these checks may be chosen based on resource availability, or they can be used together in order to provide additional verification.
description: 22 pages, 8 figures, including 4 appendices
Constrained-Path Auxiliary-Field Quantum Monte Carlo for Coupled Electrons and Phonons
Creators: name: Lee, Joonho
name: Zhang, Shiwei
name: Reichman, David R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present an extension of constrained-path auxiliary-field quantum Monte Carlo (CP-AFQMC) for the treatment of correlated electronic systems coupled to phonons. The algorithm follows the standard CP-AFQMC approach for description of the electronic degrees of freedom while phonons are described in first quantization and propagated via a diffusion Monte Carlo approach. Our method is tested on the one- and two-dimensional Holstein and Hubbard-Holstein models. With a simple semiclassical trial wavefunction, our approach is remarkably accurate for $ω/(2\text{d}tλ) < 1$ for all parameters in the Holstein model considered in this study. In addition, we empirically show that the autocorrelation time scales as $1/ω$ for $ω/t \lesssim 1$, which is an improvement over the $1/ω^2$ scaling of the conventional determinant quantum Monte Carlo algorithm. In the Hubbard-Holstein model, the accuracy of our algorithm is found to be consistent with that of standard CP-AFQMC for the Hubbard model when the Hubbard $U$ term dominates the physics of the model, and is nearly exact when the ground state is dominated by the electron-phonon coupling scale $λ$. The approach developed in this work should be valuable for understanding the complex physics arising from the interplay between electrons and phonons in both model lattice problems and ab-initio systems.
Planet Formation with Migration
Creators: name: Chambers, J. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the core-accretion model, gas-giant planets form solid cores which then accrete gaseous envelopes. Tidal interactions with disk gas cause a core to undergo inward type-I migration in 10^4 to 10^5 years. Cores must form faster than this to survive. Giant planets clear a gap in the disk and undergo inward type-II migration in <10^6 years if observed disk accretion rates apply to the disk as a whole. Type-II migration times exceed typical disk lifetimes if viscous accretion occurs mainly in the surface layers of disks. Low turbulent viscosities near the midplane may allow planetesimals to form by coagulation of dust grains. The radius r of such planetesimals is unknown. If r<0.5 km, the core formation time is shorter than the type-I migration timescale and cores will survive. Migration is substantial in most cases, leading to a wide range of planetary orbits, consistent with the observed variety of extrasolar systems. When r is of order 100m and midplane alpha is of order 3 times 10^-5, giant planets similar to those in the Solar System can form.
description: 12 pages including 4 figures
D6.6: Report on Cycle 3 hackathon
Creators: name: Jochum, Markus
name: Keenlyside, Noel
Publisher: name: Zenodo
Year: 2023

description: About this document

Report on the conducted knowledge coproduction activities with an update of the coproduction plan.

Work package in charge

WP6

Executive summary

The third hackathon was organized in M20 in Madrid under the lead of the Storms & Ocean theme. Having learned from previous hackathons, the WPs defined their data needs ahead of time, and the Alfred Wegener Institut (AWI), the Max Planck Insitut (MPI), and the European Centre for Medium-Range Weather Forecasts (ECMWF) prepared (i.e., regridded and coarsegrained) the required fields. Furthermore, several online training sessions were provided before the meeting to teach newcomers how to access and analyze model output on irregular grids. A total of 139 scientists and students from 40 different institutes analyzed the Cycle 3 output from ICON and IFS, and frequently were able to report on exciting results. The special challenge du jour was Fisheries and marine biogeochmistry, and the invited stakeholders from France and Senegal were given the opportunity to learn how to analyze SR ESMs and convince themselves of the quality of the simulations.

Conclusion & Results

Having built on the experience of the previous two hackathons, this one has probably been the most productive so far, and the key lessons are:

define, within the WPs, the research goals ahead of time

prepare the relevant model output in advance

make sure there are Python experts in every room

choose a spacious setting, ideally in a university to entrain other interested scientists

provide ample of opportunity for scientists of different model components to interact
Uniformly accelerated classical sources as limits of Unruh-DeWitt detectors
Creators: name: Cozzella, Gabriel
name: Fulling, Stephen A.
name: Landulfo, André G. S.
name: Matsas, George E. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Although the thermal and radiative effects associated with a two-level quantum system undergoing acceleration are now widely understood and accepted, a surprising amount of controversy still surrounds the simpler and older problem of an accelerated classical charge. We argue that the analogy between these systems is more than superficial: There is a sense in which a "UD detector" in a quantized scalar field effectively acts as a classical source for that field if the splitting of its energy levels is so small as to be ignored. After showing explicitly that a detector with unresolved inner structure does behave as a structureless scalar source, we use that analysis to rederive the scalar version of a previous analysis of the accelerated electromagnetic charge, without appealing to the troublesome concept of "zero-energy particles." Then we recover these results when the detector energy gap is taken to be zero from the beginning. This vindicates the informal terminology "zero-frequency Rindler modes" as a shorthand for "Rindler modes with arbitrarily small energy." In an appendix, the mathematical behavior of the normal modes in the limit of small frequency is examined in more detail than before. The vexed (and somewhat ambiguous) question of whether coaccelerating observers detect the acceleration radiation can then be studied on a sound basis.
description: 10 pages, 2 figures
Γνώμονες στάθμισης στον έλεγχο συνταγματικότητας των νόμων
Creators: name: Λαμπίρη, Ιωάννα Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Στάθμιση αξιών
Βιώσιμη ανάπτυξη
Αναλογικότητα
Διδάγματα κοινής πείρας
Αιτιολογία
Ρόλος δικαστή ως κρατικό όργανο
Balancing of values
The role of judge as a public authority
Justification

description: Στην εργασία αυτή αναφέρονται οι λόγοι που καθιστούν αναγκαία την συγκεκριμένη στάθμιση αξιών κατά την επίλυση διαφορών από το δικαστή και εκτίθενται τα εργαλεία (γνώμονες) που χρησιμοποιεί τη νομολογία του Συμβουλίου της Επικρατείας υπό το ισχύον Σύνταγμα, προκειμένου να επιλυθεί η εκκρεμής διαφορά, που ευθέως ή παρεμπιπτόντως έχει συνταγματική διάσταση. Ετσι αναδεικνύεται ο ελεγκτικός χαρακτήρας του δικαιοδοτικού έργου, εντοπίζεται ο ρόλος του δικαστή ως κρατικού οργάνου και οριοθετούνται οι σχέσεις του με τα άλλα όργανα της κρατικής εξουσίας, με στόχο τη διατήρηση της ισορροπίας στην έννομη ζωή.
description: The theme of this research deals with the grounds which necessitate specific balancing of values made by judge when he looks through a case. There are also exposed the impliments (standards) which are used under Current Constitution by the jurisprudence of the Council of State in order to resolve the pending case, which straightly or incidentally has a constitutional dimension. Thereby, the controlling aspect of the judiciary is promoted the role of the judge as a public authority is detected and his relations with other organs of public power are defined, in order to preserve the consistancy of the legal order
Vacuum structure and thermodynamics of two dimensional guage theories coupled to matter
Creators: name: Paniak, Lori Dean
Publisher: name: University of British Columbia
Year: 2009

description: The physics of two-dimensional Yang-Mills theories both with and without heavy, static matter is investigated. In particular, we focus on the relationship of these systems to the mathematical structures of Lie group theory. From this point of view explicit calculations of the vacuum structure and thermodynamics of finite N SU(N) gauge theory with adjoint representation matter are carried out. The limit N → ∞ of these systems is also constructed, making connection with the well-known formalism of unitary matrix models. An example of adjoint and fundamental matter interacting via SU(N) gauge fields is considered explicitly and shown to have non-trivial phase structure which is qualitatively similar to what is expected to arise in higher dimensional gauge theories. This phase structure is interpreted in terms of group theoretic quantities. Finally, the case of fundamental representation matter interacting via SU(N) fields and confined to a one-dimensional box is examined. The formalism for detailed exploration of this system is developed and used to show that there is a phase transition as a function of particle density and size of the box. The consequences of this observation for a string theory interpretation of a gas of Wilson loops on the two-dimensional space-time sphere are briefly discussed.