cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Biomedical National Elemental Imaging Resource co-registration tool facilitates metals-based pathway analysis of the tumor immune microenvironment
Creators: name: Aruesha Srivastava
name: Shaik, Neha
name: Yunrui Lu
name: Chan, Matthew
name: Alos Diallo
name: Han, Serin
name: Steiner, Ramsey
name: Punshon, Tracy
name: Jackson, Brian
name: Vahdat, Linda
name: Vaickus, Louis
name: Hoopes, Jack
name: Kolling, Fred
name: Marotti, Jonathan
name: Levy, Joshua
Publisher: name: F1000 Research Limited
Year: 2023

description: Trace elements, both essential and toxic, are pivotal in biological processes, including cancer. Elements like copper, cadmium, and iron play significant roles in mitochondrial metabolism, cell proliferation, and proangiogenic pathways. A key factor in these processes is the competitive binding of metals to metal transporters, a mechanism conserved across species for maintaining homeostasis. Disruptions to homeostasis could reveal new biomarkers and therapeutic targets. Traditional bulk measurements overlooks the significance of specific tissue architectures, potentially obscuring critical associations. Spatially resolved metal analysis through techniques like laser ablation inductively coupled plasma time-of-flight mass spectrometry (LA-ICPTOF-MS) offers detailed maps of multi-elemental distributions. However, correlating findings with tissue architectures necessitates complex pathological examination and co-registration. To address this, we developed a web application within the Biomedical National Elemental Imaging Resource, facilitating co-registration of high-resolution whole slide images (H&E, mIF, IHC) with elemental maps. This tool enables comparisons of metal abundance across different tissue structures and integration with additional spatial data, e.g., spatial transcriptomics. We applied this application in a pilot study on a colorectal tumor (stage pT3), integrating spatial transcriptomics (~18,000 genes) and cell-type proportions inferred from scRNASeq with LA-ICPTOF-MS. We identified associations between copper and immune activation, and iron with mesenchymal phenotypes. Further analysis using MEFISTO, latent factor model, revealed distinct profiles of metals, genes, and cell types associated with different tissue histologies. For example, Factor Five, linked to epithelial/mesenchymal cells, correlated with genes involved in the epithelial to mesenchymal transition (e.g., COL1A1, COL1A2, SPARC) and elements like Se80, Mg24, and K41. Factor Ten was associated with iron, cell proliferation markers, proliferating B cells, and macrophages. This approach offers a comprehensive perspective on the role of metal bioaccumulation in tumor biology and potential pathways for therapeutic intervention. Applying this web application in diverse tissue contexts will expand the validity of our research findings.
Quantum transport in semiconductor quantum dot superlattices: electron-phonon resonances and polaron effects
Creators: name: Vukmirović, Nenad
name: Ikonić, Zoran
name: Indjin, Dragan
name: Harrison, Paul
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Electron transport in periodic quantum dot arrays in the presence of interactions with phonons was investigated using the formalism of nonequilibrium Green's functions. The self-consistent Born approximation was used to model the self-energies. Its validity was checked by comparison with the results obtained by direct diagonalization of the Hamiltonian of interacting electrons and longitudinal optical phonons. The nature of charge transport at electron -- phonon resonances was investigated in detail and contributions from scattering and coherent tunnelling to the current were identified. It was found that at larger values of the structure period the main peak in the current -- field characteristics exhibits a doublet structure which was shown to be a transport signature of polaron effects. At smaller values of the period, electron -- phonon resonances cause multiple peaks in the characteristics. A phenomenological model for treatment of nonuniformities of a realistic quantum dot ensemble was also introduced to estimate the influence of nonuniformities on current -- field characteristics.
title: Il diritto dei beni culturali. Atti del Convegno OGiPaC in memoria di Paolo Giorgio Ferri. Roma, 27 maggio 2021
Creators: name: Cortese, Barbara
Publisher: name: Roma TrE-Press
Year: 2021

description: Il volume raccoglie gli atti del Convegno «Il diritto dei beni culturali. In memoria di Paolo Giorgio Ferri», organizzato dall’OGiPaC-Osservatorio giuridico sulla tutela del patrimonio culturale del Dipartimento di Giurisprudenza dell’Università degli studi Roma Tre. Il Convegno ha concluso la call for papers in tema di Diritto dei beni culturali lanciata dall’OGiPaC con l’intento di promuovere una riflessione e un dibattitto su alcuni fra i più complessi profili giuridici della tutela e della valorizzazione particolarmente, in questo momento storico particolarmente meritevoli di attenzione. I contenuti dei contribuiti rispecchiano fortemente la natura multidisciplinare ed interdisciplinare che caratterizza le attività scientifiche dell’Osservatorio, offrendo al lettore e allo studioso numerosi e interessanti spunti di riflessione. L’iniziativa è stata dedicata alla memoria di Paolo Giorgio Ferri, professionista e uomo di alto spessore, ultimo cacciatore dei predatori dell’arte.
Power Series Composition and Change of Basis
Creators: name: Bostan, Alin
name: Salvy, Bruno
name: Schost, Éric
Publisher: name: arXiv
Year: 2008
Subjects: subject: Symbolic Computation (cs.SC)
subject: FOS: Computer and information sciences

description: Efficient algorithms are known for many operations on truncated power series (multiplication, powering, exponential, ...). Composition is a more complex task. We isolate a large class of power series for which composition can be performed efficiently. We deduce fast algorithms for converting polynomials between various bases, including Euler, Bernoulli, Fibonacci, and the orthogonal Laguerre, Hermite, Jacobi, Krawtchouk, Meixner and Meixner-Pollaczek.
DRAS-CQSim: A Reinforcement Learning based Framework for HPC Cluster Scheduling
Creators: name: Fan, Yuping
name: Lan, Zhiling
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: For decades, system administrators have been striving to design and tune cluster scheduling policies to improve the performance of high performance computing (HPC) systems. However, the increasingly complex HPC systems combined with highly diverse workloads make such manual process challenging, time-consuming, and error-prone. We present a reinforcement learning based HPC scheduling framework named DRAS-CQSim to automatically learn optimal scheduling policy. DRAS-CQSim encapsulates simulation environments, agents, hyperparameter tuning options, and different reinforcement learning algorithms, which allows the system administrators to quickly obtain customized scheduling policies.
Morphological variation in a biotically patchy environment : evidence from a pasture population of Trifolium repens l.
Creators: name: Evans, Richard C.
Publisher: name: University of British Columbia
Year: 2010

description: The relationship between morphological variability and biotic environmental heterogeneity was studied in a pasture population of Trifolium repens. It had been argued that the unexpectedly high levels of variation in T. repens could be maintained by diversifying selection. The mosaic of neighbours (perennial grasses) with which T. repens coexists constitutes a prominent element of biotic patchiness that may lead to sorting among T. repens genotypes on the basis of neighbour-specific compatibilities. A variation study was conducted on a set of 400 individuals of T. repens collected on a neighbour-specific basis from a 43 year old pasture and grown for one season under common garden conditions. A significant proportion of the variation in a set of twelve morphological characters was accounted for by the neighbour with which the individual of T. repens had been growing in the field. The actual amount of variation accounted for, however, was low (6-19%). It was concluded that although diversifying selection could be operating in the pasture, it is not of primary importance in the maintenance of variation in this population. A repeat study was carried out after the plants had spent two years in the common garden. None of the earlier among-neighbour differences in morphology were retained. I concluded that the original results reflected developmental differences carried over from the pasture.
AURORA: A public applications server to introduce students to superconductivity
Creators: name: Riva, Nicolò
name: Grilli, Francesco
name: Dutoit, Bertrand
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2021

description: The growing interest in modeling superconductors has led to the development of increasingly effective numerical models and software. Alongside this interest, the question of how to teach and to explain the operation of superconductors to students has arisen. Ecole Polytechnique Federale de Lausanne (EPFL) and Karlsruhe Institute of Technology (KIT) have created a series of web applications based on COMSOL Multiphysics that are publicly accessible through a web server called AURORA. Users can change the values of several parameters of the applications and observe the influence on the results. This article describes part of the currently available applications and some exercises that can be done with them.
Plasma-wall transition and sheath formation
Creators: name: Manfredi, Giovanni
name: Valsaque, Fabrice
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A review of the theoretical and computational aspects of plasma-wall transition is presented. The conditions for the existence of plasma sheaths in front of a solid surface are established. Various regimes are analyzed -collisionless and collisional. fluid and kinetic, with and without ionization. The partition of the plasma-wall transition into distinct regions (Debye sheath, quasineutral presheath. magnetic presheath, etc...) is also discussed. Applications to the theory of electrostatic probes are illustrated by means of a recently developed kinetic model. The influence of the probe on ion temperature measurements is studied in detail.
Mykyta the Fox and networks of language
Creators: name: Holovatch, Yu.
name: Palchykov, V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The results of quantitative analysis of word distribution in two fables in Ukrainian by Ivan Franko: "Mykyta the Fox" and "Abu-Kasym's slippers" are reported. Our study consists of two parts: the analysis of frequency-rank distributions and the application of complex networks theory. The analysis of frequency-rank distributions shows that the text sizes are enough to observe statistical properties. The power-law character of these distributions (Zipf's law) holds in the region of rank variable r=20 - 3000 with an exponent $α\simeq 1$. This substantiates the choice of the above texts to analyse typical properties of the language complex network on their basis. Besides, an applicability of the Simon model to describe non-asymptotic properties of word distributions is evaluated. In describing language as a complex network, usually the words are associated with nodes, whereas one may give different meanings to the network links. This results in different network representations. In the second part of the paper, we give different representations of the language network and perform comparative analysis of their characteristics. Our results demonstrate that the language network of Ukrainian is a strongly correlated scale-free small world. Empirical data obtained may be useful for theoretical description of language evolution.
description: An illustrative material from the paper submitted in Ukranian to the Journal of Physical Studies (http://www.ktf.franko.lviv.ua/JPS/index.html)
Sediment cascades and the entangled relationship between human impact and natural dynamics at the pre‐pottery Neolithic site of Göbekli Tepe, Anatolia
Creators: name: Nykamp, Moritz
name: Becker, Fabian
name: Braun, Ricarda
name: Pöllath, Nadja
name: Knitter, Daniel
name: Peters, Joris
name: Schütt, Brigitta
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: Holocene geomorphodynamic activity
subject: cumulative probability functions of 14 C ages
subject: human–environment interactions
subject: geoarchaeology
subject: sediment connectivity
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::550 Geowissenschaften

description: This study presents a meta‐analysis of radiocarbon ages for the environs of Göbekli Tepe – one of the oldest monumental structures worldwide – using cumulative probability functions to diachronically assess phases of geomorphodynamic activity as controlled by natural or anthropogenic drivers. We employ sediment cascades as a heuristic framework to study the complex responses of the geomorphological system to various triggers at local to supra‐regional scales. Possible triggers include climatic variability as documented by supra‐regional hydroclimatic proxy data, regional demographic trends, and local to regional socioeconomic developments such as the emergence of sedentism or the introduction and dispersal of livestock herding. Our results show that phases of intensified geomorphodynamic activity occurred between ca. 7.4–7.0 and 5.8–3.3 ka BP. These phases roughly coincide with phases of population growth in southern Turkey and climatic variations in Turkey and the Levant. The phase between ca. 5.8–3.3 ka BP also corresponds to the time when organized agriculture and the seeder plough were introduced. Also, the identified phases are in agreement with the general trend of varying geomorphodynamic activity in the Eastern Mediterranean as driven by human impact and climatic change. However, neither the Younger Dryas–Holocene transition nor the development of herding during the Pre‐Pottery Neolithic left a clear signature. We demonstrate how the different depositional environments in the studied landscape compartments vary with respect to their spatiotemporal coverage and discuss challenges when trying to understand processes that once shaped landscapes of past societies. © 2020 The Authors. Earth Surface Processes and Landforms published by John Wiley & Sons Ltd
TADBIRKORLIK SUB'YEKTLARI FAOLIYATIDA STRATEGIK MENEJMENT VA SAMARADORLIKNI BAHOLASHNI AHAMIYATI
Creators: name: Shakirova, Madinaxon
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqolada tadbirkorlik subyektlarida strategik boshqaruvni samaradorligini oshish va baholash ko’rib chiqildi. Tadbirkorlik  subyektlarida strategik bashqaruv va samaradorlik bo’yicha chuqur tahlil o’tkazildi. Bo’limlarga bo’lingan holda o’rganildi. Maqola so’ngida muallif tomonidan xulosa va takliflar berib o’tildi.
Hard core lattice gas with third next-nearest neighbor exclusion on triangular lattice: one or two phase transitions?
Creators: name: Jaleel, Asweel Ahmed A.
name: Mandal, Dipanjan
name: Rajesh, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We obtain the phase diagram of the hard core lattice gas with third nearest neighbor exclusion on the triangular lattice using Monte Carlo simulations that are based on a rejection-free flat histogram algorithm. In a recent paper [J. Chem. Phys. 151, 104702 (2019)], it was claimed that the lattice gas with third nearest neighbor exclusion undergoes two phase transitions with increasing density, with the phase at intermediate densities exhibiting hexatic order with continuously varying exponents. Though a hexatic phase is expected when the exclusion range is large, it has not been seen earlier in hard core lattice gases with short range exclusion. In this paper, by numerically determining the entropies for all densities, we show unambiguously that there is only a single phase transition in the system between a low-density fluid phase and a high-density ordered sublattice phase, and that a hexatic phase is absent. The transition is shown to be first order in nature and the critical parameters are determined accurately.
description: 11 pages, 5 figures, 63 references
title: Sigmaplan – Gereduceerde Getijdegebieden–Wal Zwijn: revisie gecombineerde in- en uitwateringsconstructies
Creators: name: Vercruysse, Jeroen B.
name: Visser, Klaas Pieter
name: Verelst, Kristof
Publisher: name: Flanders Hydraulics Research
Year: 2021

description: Title : WL Rapporten. Waterbouwkundig Laboratorium: Antwerpen Volume : 20_041_1 Issue : Pagination : VII, 25
Gravitational particle production of superheavy massive particles in Quintessential Inflation: A numerical analysis
Creators: name: Saló, Llibert Aresté
name: de Haro, Jaume
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute numerically the reheating temperature due to the gravitational production of conformally coupled superheavy particles during the phase transition from the end of inflation to the beginning of kination in two different Quintessential Inflation (QI) scenarios, namely Lorentzian Quintessential Inflation (LQI) and $α$-attractors in the context of Quintessential Inflation ($α$-QI). Once these superheavy particles have been created, they must decay into lighter ones to form a relativistic plasma, whose energy density will eventually dominate the one of the inflaton field in order to reheat after inflation our universe with a very high temperature, in both cases greater than $10^7$ GeV, contrary to the usual belief that heavy masses suppress the particle production and, thus, lead to an inefficient reheating temperature. Finally, we will show that the over-production of Gravitational Waves (GWs) during this phase transition, when one deals with our models, does not disturb the Big Bang Nucleosynthesis (BBN) success.
description: 15 pages, 7 figures. 1 reference added. Version accepted for publication in PRD. arXiv admin note: text overlap with arXiv:1903.01181
Scaling of temporal entanglement in proximity to integrability
Creators: name: Lerose, Alessio
name: Sonner, Michael
name: Abanin, Dmitry A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Describing dynamics of quantum many-body systems is a formidable challenge due to rapid generation of quantum entanglement between remote degrees of freedom. A promising approach to tackle this challenge, which has been proposed recently, is to characterize the quantum dynamics of a many-body system and its properties as a bath via the Feynman-Vernon influence matrix (IM), which is an operator in the space of time trajectories of local degrees of freedom. Physical understanding of the general scaling of the IM's temporal entanglement and its relation to basic dynamical properties is highly incomplete to present day. In this Article, we analytically compute the exact IM for a family of integrable Floquet models - the transverse-field kicked Ising chain - finding a Bardeen-Cooper-Schrieffer-like "wavefunction" on the Schwinger-Keldysh contour with algebraically decaying correlations. We demonstrate that the IM exhibits area-law temporal entanglement scaling for all parameter values. Furthermore, the entanglement pattern of the IM reveals the system's phase diagram, exhibiting jumps across transitions between distinct Floquet phases. Near criticality, a non-trivial scaling behavior of temporal entanglement is found. The area-law temporal entanglement allows us to efficiently describe the effects of sizeable integrability-breaking perturbations for long evolution times by using matrix product state methods. This work shows that tensor network methods are efficient in describing the effect of non-interacting baths on open quantum systems, and provides a new approach to studying quantum many-body systems with weakly broken integrability.
description: 21 pages, 6 figures
The glasma initial state at the LHC
Creators: name: Lappi, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present results from numerical Classical Yang Mills calculations of the initial stage Glasma field configurations in a relativistic heavy ion collision. We compute the initial gluon multiplicity from RHIC to LHC energies. The initial conditions for the classical field computation are taken from a dipole model parametrization tested on HERA data, meaning that all the parameters, including the normalization and the value of the saturation scale, are fixed from DIS data.
description: 4 pages, 2 figures, talk at Quark Matter 2008, Jaipur, India
Quantum Information and Wave function Collapse
Creators: name: Mayburov, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Inofrmation-theoretical restrictions on information transferred in the measurement of object S by information system O are studied. It is shown that such constraints, induced by Heisenberg commutation relations, result in the loss of information about the purity of S state. Consequently, it becomes impossible for O to discriminate pure and mixed S states. In individual events this effect is manifested by the stochastic outcomes of pure S state measurement, i.e. the collapse of pure S state.
description: 8 pages, talk given on Simposium 'Frontiers of fundamental Physics', Udine, Italy, January 2008, to appear in Proceedings
Ultracold Rydberg Atoms in a Ioffe-Pritchard Trap
Creators: name: Hezel, Bernd
name: Lesanovsky, Igor
name: Schmelcher, Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We discuss the properties of ultracold Rydberg atoms in a Ioffe-Pritchard magnetic field configuration. The derived two-body Hamiltonian unveils how the large size of Rydberg atoms affects their coupling to the inhomogeneous magnetic field. The properties of the compound electronic and center of mass quantum states are thoroughly analyzed. We find very tight confinement of the center of mass motion in two dimensions to be achievable while barely changing the electronic structure compared to the field free case. This paves the way for generating a one-dimensional ultracold quantum Rydberg gas.
description: 30 pages, 10 figures, added references, substantiation of approximations
Nodal Lines and Circles from Vibrometry as a noncontact alternative to dynamic and viscoelastic mechanical testing in cartilage
Creators: name: Espinosa, M. Gabriela
name: Otarola, Gaston A.
name: Hu, Jerry C.
name: Athanasiou, Kyriacos A.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biological Engineering
subject: 110601 Biomechanics
subject: FOS: Health sciences
subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering

description: Figure S2: Nodal lines and circles (---) for observed cartilage mode shapes. Out-of-plane relative deformation is represented by + and -. Adapted from Thompson 2008.
Recent advances for quantum classifiers
Creators: name: Li, Weikang
name: Deng, Dong-Ling
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Machine learning has achieved dramatic success in a broad spectrum of applications. Its interplay with quantum physics may lead to unprecedented perspectives for both fundamental research and commercial applications, giving rise to an emergent research frontier of quantum machine learning. Along this line, quantum classifiers, which are quantum devices that aim to solve classification problems in machine learning, have attracted tremendous attention recently. In this review, we give a relatively comprehensive overview for the studies of quantum classifiers, with a focus on recent advances. First, we will review a number of quantum classification algorithms, including quantum support vector machines, quantum kernel methods, quantum decision tree classifiers, quantum nearest neighbor algorithms, and quantum annealing based classifiers. Then, we move on to introduce the variational quantum classifiers, which are essentially variational quantum circuits for classifications. We will review different architectures for constructing variational quantum classifiers and introduce the barren plateau problem, where the training of quantum classifiers might be hindered by the exponentially vanishing gradient. In addition, the vulnerability aspect of quantum classifiers in the setting of adversarial learning and the recent experimental progress on different quantum classifiers will also be discussed.
description: invited review, 24 pages, 11 figures
FE Model Parameters from Vibrometry as a noncontact alternative to dynamic and viscoelastic mechanical testing in cartilage
Creators: name: Espinosa, M. Gabriela
name: Otarola, Gaston A.
name: Hu, Jerry C.
name: Athanasiou, Kyriacos A.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biological Engineering
subject: 110601 Biomechanics
subject: FOS: Health sciences
subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering

description: Table S2: Material parameters used in finite element analysis. Void ratio and fluid specific weight were set to 0.5 and 9.8 kN/m3 for all tissues.
Quantum Walks on a Random Environment
Creators: name: Yin, Yue
name: Katsanos, D. E.
name: Evangelou, S. N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Quantum walks are considered in a one-dimensional random medium characterized by static or dynamic disorder. Quantum interference for static disorder can lead to Anderson localization which completely hinders the quantum walk and it is contrasted with the decoherence effect of dynamic disorder having strength W, where a quantum to classical crossover at time $t_{c}\propto W^{-2}$ transforms the quantum walk into an ordinary random walk with diffusive spreading. We demonstrate these localization and decoherence phenomena in quantum carpets of the observed time evolution and examine in detail a dimer lattice which corresponds to a single qubit subject to randomness.
description: 7 pages 8 figures (for high resolution figures send an email to dkatsan@uoi.gr)
Deep Learning-based Spacecraft Relative Navigation Methods: A Survey
Creators: name: Song, Jianing
name: Rondao, Duarte
name: Aouf, Nabil
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.10

description: Autonomous spacecraft relative navigation technology has been planned for and applied to many famous space missions. The development of on-board electronics systems has enabled the use of vision-based and LiDAR-based methods to achieve better performances. Meanwhile, deep learning has reached great success in different areas, especially in computer vision, which has also attracted the attention of space researchers. However, spacecraft navigation differs from ground tasks due to high reliability requirements but lack of large datasets. This survey aims to systematically investigate the current deep learning-based autonomous spacecraft relative navigation methods, focusing on concrete orbital applications such as spacecraft rendezvous and landing on small bodies or the Moon. The fundamental characteristics, primary motivations, and contributions of deep learning-based relative navigation algorithms are first summarised from three perspectives of spacecraft rendezvous, asteroid exploration, and terrain navigation. Furthermore, popular visual tracking benchmarks and their respective properties are compared and summarised. Finally, potential applications are discussed, along with expected impediments.
description: 41 pages; 17 figures; Submitted to Acta Astronautica, under review
Vibrometer Acquisition Settings from Vibrometry as a noncontact alternative to dynamic and viscoelastic mechanical testing in cartilage
Creators: name: Espinosa, M. Gabriela
name: Otarola, Gaston A.
name: Hu, Jerry C.
name: Athanasiou, Kyriacos A.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biological Engineering
subject: 110601 Biomechanics
subject: FOS: Health sciences
subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering

description: Table S1: Vibrometer settings used to obtain dynamic mechanical properties of cartilage punches.
Functions for Poisson's Ratio and Geometric Factors from Vibrometry as a noncontact alternative to dynamic and viscoelastic mechanical testing in cartilage
Creators: name: Espinosa, M. Gabriela
name: Otarola, Gaston A.
name: Hu, Jerry C.
name: Athanasiou, Kyriacos A.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biological Engineering
subject: 110601 Biomechanics
subject: FOS: Health sciences
subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering

description: Figure S1: Surface plots and fitted functions for Poisson's ratio and geometric factors (Ki) generated from empirical data.
Caratterizzazione della componente polipeptidica della birra e identificazione di epitopi potenzialmente immunogenici per i pazienti celiaci
Creators: name: Pepe, Carolina
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2009

description: Il seguente lavoro nasce dal proposito di approfondire le conoscenze relative alla caratterizzazione della frazione proteica e polipeptidica nella birra, allo scopo di determinare, qualitativamente e quantitativamente, sequenze peptidiche potenzialmente immunogeniche, responsabili dell’induzione della malattia celiaca. Dopo una panoramica generale, nella quale si richiamano concetti e acquisizioni sui processi di produzione della birra in considerazione della potenziale permanenza di proteine o loro derivati idrolitici, viene brevemente trattato il problema della malattia celiaca. Si passa quindi alla disamina degli studi condotti in passato e più recentemente sulla caratterizzazione delle proteine dell’orzo (ordeine) nel prodotto finito. La sezione prettamente sperimentale del lavoro di tesi è focalizzata sulla caratterizzazione delle proteine e in particolare del materiale peptidico a basse masse molecolari, in due birre commerciali italiane scelte come campioni rappresentativi. Infine, alla luce delle sequenze polipeptidiche identificate nella birra, viene analizzato e discusso il potenziale ruolo nell’induzione della malattia celiaca.
Deep few-shot learning for bi-temporal building change detection
Creators: name: Khoshboresh-Masouleh, Mehdi
name: Shah-Hosseini, Reza
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In real-world applications (e.g., change detection), annotating images is very expensive. To build effective deep learning models in these applications, deep few-shot learning methods have been developed and prove to be a robust approach in small training data. The analysis of building change detection from high spatial resolution remote sensing observations is important research in photogrammetry, computer vision, and remote sensing nowadays, which can be widely used in a variety of real-world applications, such as map updating. As manual high resolution image interpretation is expensive and time-consuming, building change detection methods are of high interest. The interest in developing building change detection approaches from optical remote sensing images is rapidly increasing due to larger coverages, and lower costs of optical images. In this study, we focus on building change detection analysis on a small set of building change from different regions that sit in several cities. In this paper, a new deep few-shot learning method is proposed for building change detection using Monte Carlo dropout and remote sensing observations. The setup is based on a small dataset, including bitemporal optical images labeled for building change detection.
description: 5 pages, 3 figures
Off-critical Casimir effect in Ising Slabs with Symmetric Boundary Conditions in d=3
Creators: name: Borjan, Z.
name: Upton, P. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Extended de Gennes-Fisher (EdGF) local-functional method has been applied to the thermodynamic Casimir effect {\it away} from the critical point for systems in the Ising universality class confined between parallel plane plates with symmetric boundary conditions (denoted $(ab)=(++)$). Results on the universal scaling functions of the Casimir force $W_{++}(y)$ ($y$ is a temperature-dependant scaling variable) and Gibbs adsorption $\tilde G(y)$ are presented in spatial dimension $d=3$. Also, the mean-field form of the universal scaling function of the Gibbs adsorption $\tilde G(y)$ is derived within the local functional theory. Asymptotic behavior of $W_{++}(y)$ for very large values of the scaling variable $y$ is analyzed in {\it general} dimension $d$.
description: 4 pages, 2 figures; typos coorected, penultimate paragraph added, some references removed; to appear in the Physical Review Letters
Persistent Non-Gaussian Structure in the Image of Sagittarius A* at 86 GHz
Creators: name: Issaoun, S.
name: Johnson, M. D.
name: Blackburn, L.
name: Broderick, A.
name: Tiede, P.
name: Wielgus, M.
name: Doeleman, S. S.
name: Falcke, H.
name: Akiyama, K.
name: Bower, G. C.
name: Brinkerink, C. D.
name: Chael, A.
name: Cho, I.
name: Gómez, J. L.
name: Hernández-Gómez, A.
name: Hughes, D.
name: Kino, M.
name: Krichbaum, T. P.
name: Liuzzo, E.
name: Loinard, L.
name: Markoff, S.
name: Marrone, D. P.
name: Mizuno, Y.
name: Moran, J. M.
name: Pidopryhora, Y.
name: Ros, E.
name: Rygl, K.
name: Shen, Z. -Q.
name: Wagner, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Observations of the Galactic Center supermassive black hole Sagittarius A* (Sgr A*) with very long baseline interferometry (VLBI) are affected by interstellar scattering along our line of sight. At long radio observing wavelengths ($\gtrsim1\,$cm), the scattering heavily dominates image morphology. At 3.5 mm (86 GHz), the intrinsic source structure is no longer sub-dominant to scattering, and thus the intrinsic emission from Sgr A* is resolvable with the Global Millimeter VLBI Array (GMVA). Long-baseline detections to the phased Atacama Large Millimeter/submillimeter Array (ALMA) in 2017 provided new constraints on the intrinsic and scattering properties of Sgr A*, but the stochastic nature of the scattering requires multiple observing epochs to reliably estimate its statistical properties. We present new observations with the GMVA+ALMA, taken in 2018, which confirm non-Gaussian structure in the scattered image seen in 2017. In particular, the ALMA-GBT baseline shows more flux density than expected for an anistropic Gaussian model, providing a tight constraint on the source size and an upper limit on the dissipation scale of interstellar turbulence. We find an intrinsic source extent along the minor axis of $\sim100\,μ$as both via extrapolation of longer wavelength scattering constraints and direct modeling of the 3.5 mm observations. Simultaneously fitting for the scattering parameters, we find an at-most modestly asymmetrical (major-to-minor axis ratio of $1.5\pm 0.2$) intrinsic source morphology for Sgr A*.
description: 18 pages, 10 figures, submitted to ApJ
Quantum dissipation with nonlinear environment couplings: Stochastic fields dressed dissipaton equation of motion approach
Creators: name: Chen, Zi-Hao
name: Wang, Yao
name: Xu, Rui-Xue
name: Yan, YiJing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Accurate and efficient simulation on quantum dissipation with nonlinear environment couplings remains nowadays a challenging task. In this work, we propose to incorporate the stochastic fields, which resolve just the nonlinear environment coupling terms, into the dissipaton-equation-of-motion (DEOM) construction. The stochastic fields are introduced via the Hubbard-Stratonovich transformation. After the transformation, the resulted stochastic-fields-dressed total Hamiltonian contains only linear environment coupling terms. On basis of that, a stochastic-fields-dressed DEOM (SFD-DEOM) can then be constructed. The resultant SFD-DEOM, together with the ensemble average over the stochastic fields, constitutes an exact and nonperturbative approach to quantum dissipation under nonlinear environment couplings. It is also of relatively high efficiency and stability due to the fact that only nonlinear environment coupling terms are dealt with stochastic fields while linear couplings are still treated as the usual DEOM. Numerical demonstrations are carried out on a two-state model system.
description: 7 pages, 5 figures (including 1 multimedia)
Control of PKA stability and signalling
by RING ligase praja2
Creators: name: Lignitto, Luca
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: Ligand-mediated activation of G-Protein Coupled Receptors (GPCRs) mobilises compartmentalised pulses of second messengers like cAMP. The main cellular effector of cAMP is Protein Kinase A (PKA) which is assembled as inactive holoenzyme consisting of two regulatory (R) and two catalytic (PKAc) subunits. cAMP binding to the R subunits dissociates the holoenzyme and releases the catalytic moiety, which phosphorylates a wide array of cellular proteins1. Re-association of the PKAc and R components terminates the signal. The rate of association and dissociation of R and PKAc subunits determines the intensity and the duration of the kinase activity, influencing complex biological phenotypes such as long term memory, differentiation and apoptosis2. Proteolysis of R subunits has been proposed as mechanism to sustain signalling downstream of PKAc3, although no enzyme targeting R subunits had been identified.
Here we report that praja2, a RING E3 ligase widely expressed in mammalian cells, controls the stability of R subunits. Praja2 forms a stable complex with and is phosphorylated by PKA. Elevated cAMP levels promote Praja2-mediated ubiquitination and subsequent proteolysis of compartmentalised R subunits. Functional experiments in neuroblastoma cells and rat brains show that praja2 is required for efficient nuclear cAMP signalling and for PKA-mediated long-term potentiation (LTP). These findings indicate that praja2 regulates the total concentration of R subunits, thereby tuning the strength and duration of PKA signal output in response to the cAMP concentration.
ON THE IMPORTANT PROBLEMS OF THE TYPOLOGY OF MODERN TURKISH AND UZBEK STORIES
Creators: name: Zaripova, Shukurjon
Publisher: name: Zenodo
Year: 2023

description: This thesis talks about the importance of typology and typology of modern languages in modern Turkish and Uzbek stories. Also, theories about the study of common and specific features of languages in linguistic typology, the main methods in linguistic typology are given. The main problems encountered during the typological analysis of Eastern languages and their solutions are presented.
Effetti della colonizzazione di microorganismi fotosintetici sul patrimonio artistico: caratterizzazione morfologica e molecolare degli organismi e possibili tecniche di controllo.
Creators: name: Marzano, Chiara
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: ABSTRACT

Dissertation title: The effects of colonization of photosynthetic microorganisms on the cultural heritage: morphological and molecular characterization of microorganisms and possible control techniques.

Doctoral candidate: Chiara Marzano

The purpose of my dissertation is the study of bioincrustations (prevalently produced by microorganisms, such as bacteria, cyanobacteria and microalgae, but by mosses as well) growing on monuments and on exposed surfaces of archaeological sites and the development of new protocols for to remove them. A non destructive technique was employed to collect biofilms from eight sampling sites located in different places of Naples and surroundings. The substrates were either yellow tuff or piperno, two locally abundant volcanic rocks.
Various molecular techniques (DNA extraction, enviromental PCR, cloning and DGGE)  were employed for identification and classification of the biofilm organisms. Experiments of controlled growth of biofilms in artificial environments were carried out in a a climatic chamber thanks to the cooperation of Prof. Cesareo Saiz-Jimenez of the CSIC in Seville. Different environmental conditions were simulated, in order to verify whether the different microclimatic parameters (humidity, sun exposure, temperature) may influence the distribution and composition of microbial biofilms.
Specific protocols were designated, aiming at monitoring and eradicating bioincrustations, according to the identification of biodeteriorating microorganisms on the two substrates, as well as of microclimatic parameters influencing biofilm formation.. The proposed protocols do not alter the chemical nature of the substratum and are based on the use of biocides and cold microwaves. The knowledge of bioincrustation-forming organisms allowed to establish appropriate value ranges of microwave intensity.
Results indicated that using microwaves is certainly the most appropriate method, because it does not cause alterations to the surfaces of the substrates, does not contribute to environmental pollution, and it is less hazardous for operators.
On Convexity of Charged Operators in CFTs and the Weak Gravity Conjecture
Creators: name: Aharony, Ofer
name: Palti, Eran
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Weak Gravity Conjecture is typically stated as a bound on the mass-to-charge ratio of a particle in the theory. Alternatively, it has been proposed that its natural formulation is in terms of the existence of a particle which is self-repulsive under all long-range forces. We propose a closely related, but distinct, formulation, which is that it should correspond to a particle with non-negative self-binding energy. This formulation is particularly interesting in anti-de Sitter space, because it has a simple conformal field theory (CFT) dual formulation: let $Δ(q)$ be the dimension of the lowest-dimension operator with charge $q$ under some global $U(1)$ symmetry, then $Δ(q)$ must be a convex function of $q$. This formulation avoids any reference to holographic dual forces or even to locality in spacetime, and so we make a wild leap, and conjecture that such convexity of the spectrum of charges holds for any (unitary) conformal field theory, not just those that have weakly coupled and weakly curved duals. This Charge Convexity Conjecture, and its natural generalization to larger global symmetry groups, can be tested in various examples where anomalous dimensions can be computed, by perturbation theory, $1/N$ expansions and semi-classical methods. In all examples that we tested we find that the conjecture holds. We do not yet understand from the CFT point of view why this is true.
description: 30 pages; v2: corrected discussion of scalar mesons in Banks-Zaks fixed points and added references. v3: Modified the conjecture to hold for d>2 dimensions
Dirac Cones and Minigaps for Graphene on Ir(111)
Creators: name: Pletikosic, I.
name: Kralj, M.
name: Pervan, P.
name: Brako, R.
name: Coraux, J.
name: N'Diaye, A. T.
name: Busse, C.
name: Michely, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Epitaxial graphene on Ir(111) prepared in excellent structural quality is investigated by angle-resolved photoelectron spectroscopy. It clearly displays a Dirac cone with the Dirac point shifted only slightly above the Fermi level. The moire resulting from the overlaid graphene and Ir(111) surface lattices imposes a superperiodic potential giving rise to Dirac cone replicas and the opening of minigaps in the band structure.
description: 4 pages, 4 figures
IAM_COMPACT_D1.1_IAM_COMPACT_visual_identity_&_website
Creators: name: Frilingou, Natasha
name: Karameneas, Anastasios
name: Nikas, Alexandros
name: Theodoropoulou, Sophia
Publisher: name: Zenodo
Year: 2022

description: This deliverable will serve as a reference document among consortium partners (experts and non-experts) and will inform about the visual identity and relevant specifications of the project, including the graphical charter for creating communication and dissemination material for all purposes (e.g., organising workshops). The deliverable also accompanies and documents the design, implementation, and deployment of the IAM COMPACT project website.

It can also be used by policymakers and other stakeholder groups as a documentation of the visual identity of the IAM COMPACT project, and as reference material for research projects that seek to explore options for efficient dissemination through a website, providing ideas of how information could be promoted and organised through a dedicated project website.
The Quantum Hydrodynamics of the Sutherland Model
Creators: name: Stone, Michael
name: Gutman, Dmitry
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the form of the chiral condition found by Abanov et al., in the quantum hydrodyamics of the Sutherland model arises because there are two distinct inner products with respect to which the chiral Hamitonian hermitian, but only one with respect to which the full, non-chiral, Hamiltonian is hermitian.
description: 23 pages, revtex4, typos corrected, 1 reference added