cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A semi-quantitative scattering theory of amorphous materials
Creators: name: Zhang, M. -L.
name: Pan, Y.
name: Inam, F.
name: Drabold, D. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It is argued that topological disorder in amorphous solids can be described by local strains related to local reference crystals and local rotations. An intuitive localization criterion is formulated from this point of view. The Inverse Participation Ratio and the location of mobility edges in band tails is directly related to the character of the disorder potential in amorphous solid, the coordination number, the transition integral and the nodes of wave functions of the corresponding reference crystal. The dependence of the decay rate of band tails on temperature and static disorder are derived. \textit{Ab initio} simulations on a-Si and experiments on a-Si:H are compared to these predictions.
description: 4 pages, 2 figures, will be submitted to Phys. Rev. Lett
The statistical mechanical theory of homonuclear diatomic fluids with application to liquid nitrogen
Creators: name: Tam, Frank Wai-Ming
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this thesis is to set up a basic theoretical scheme which will enable us to study the thermodynamic and structural properties of homonuclear diatomic fluids. We consider so-called interaction-site models which assume that the pair potential can be written as a sum of atom-atom interactions of the Lennard-Jones type. The pair potential is then expanded and expressed as a series in rotational invariants. This allows the short-ranged anisotropic forces and the long-ranged multipolar interactions to be treated in a unified manner. It is found that for nitrogen-like particles the expanded potential gives an accurate representation of the full pair interaction in the physically interesting range. The statistical mechanical theory we consider is based upon distribution function methods and employs integral equation techniques. We develop a general formulation and solve the relatively simple linearized hypernetted-chain (LHNC) approximation for a fluid of nitrogen-like particles. The structural properties predicted by the LHNC theory are in qualitative agreement with computer simulations, but rather poor results are obtained for some thermodynamic properties. Finally, some suggestions are made as to how the present theory might be improved and extended in future work.
ИССЛЕДОВАНИЕ ГРУНТОВ, УКРЕПЛЕННЫХ ИНЪЕКЦИЕЙ ТОНКОДИСПЕРСНЫХ ЦЕМЕНТОВ
Creators: name: Шакиров Илдус Фатихович
name: Вилкова Анна Олеговна
Publisher: name: Кронос: естественные и технические науки
Year: 2020
Subjects: ОСНОВАНИЕ
МАССИВ ГРУНТА
НАПОРНАЯ ЦЕМЕНТАЦИЯ
СЖИМАЕМОСТЬ
ГРУНТОЦЕМЕНТНЫЕ ЭЛЕМЕНТЫ
BASE
SOIL MASS
PRESSURE CEMENTATION
COMPRESSIBILITY
SOIL-CEMENT ELEMENTS

description: Укрепление грунтов путем инъекции цементных растворов позволяет получить основание с более высокими деформационными и прочностными характеристиками. В статье приведены результаты исследований песчаного грунта, укрепленного инъекцией микроцементного раствора.
ПОРЯДОК ДЕЙСТВИЙ ПРИ АВТОМАТИЗАЦИИ БИЗНЕС-ПРОЦЕССОВ
Creators: name: Глухова Ксения Игоревна
name: Бекмансурова Алина Рашитовна
name: Кучина Татьяна Николаевна
Publisher: name: Кронос: естественные и технические науки
Year: 2020
Subjects: ПРОЦЕСС
БИЗНЕС-ПРОЦЕСС
АВТОМАТИЗИРОВАННЫЙ БИЗНЕС-ПРОЦЕСС

description: В настоящее время все больше набирает популярность автоматизация бизнес-процессов. В статье дается определение понятию «бизнес-процесс». Рассматриваются цели и задачи автоматизированных бизнес-процессов, их преимущества, а так же описывается порядок действий при автоматизации бизнес-процессов.
Equivalence Classes of Boundary Conditions in Gauge Theory on $Z_3$ Orbifold
Creators: name: Kawamura, Yoshiharu
name: Kinami, Teppei
name: Miura, Takeshi
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study equivalence classes of boundary conditions in gauge theory on the orbifold $T^2/Z_3$. Orbifold conditions and those gauge transformation properties are given and the gauge equivalence is understood by the Hosotani mechanism. Mode expansions are carried out for six-dimensional $Z_3$ singlet fields and a $Z_3$ triplet field, and the one-loop effective potential for Wilson line phases is calculated.
description: PTPTEX,17 pages
Development of new plywood resins - NewWave project
Creators: name: ETA FLORENCE RENEWABLE ENERGIES
Publisher: name: Zenodo
Year: 2025

description: This report summarizes the experimental work performed in the period M1-M12 in sub-task 5.1 “Lignin characterization” and 5.2 “Resin screening tests”. Four lignin samples were received from BTG and have been analyzed. The samples have been characterized in sub-task 5.1 by measuring the necessary parameters for the implementation and subsequent replacement of phenol in the resin screening tests in sub-task 5.2. Parameters such as the; water content,density, viscosity, pH, % of phenol, elemental analysis (C,H,N), GPC & metal content have been analyzed. Furthermore, to be able to understand the reactivity of the samples, thermal degradation, calorimetry scanning differential and curing ramp analyses were performed as well.

Noteworthy is that during the analysis and testing the samples showed to be very homogeneous, which is not always the case with lignins and lignin derived materials.  Subsequently in sub-task “5.2 Resin screening test”, a recipe was developed, and a 100% phenol-formaldehyde resin was synthesized to be used as a blank to compare with resins with incorporated lignin to replace the phenol.

The different lignin samples provided by BTG were tested as phenol substitutes in amounts/percentages of 25, 50 & 75%. All the resin synthesis reactions could be carried out without problems in the polymerization step, except for resins with 75% phenol substitution by the solid lignin samples. Due to the solid lignin, the viscositybecame too high in the reactor during resin synthesis, hindering polymerization. The synthesized resins have been analyzed to obtain information required for evaluation infollowing sub-tasks. The replacement of 100% of the phenol in the resin by the different lignin’s provided by BTG is still ongoing.
Subdimensional criticality: condensation of lineons and planons in the X-cube model
Creators: name: Lake, Ethan
name: Hermele, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study quantum phase transitions out of the fracton ordered phase of the $\mathbb{Z}_N$ X-cube model. These phase transitions occur when various types of sub-dimensional excitations and their composites are condensed. The condensed phases are either trivial paramagnets, or are built from stacks of $d=2$ or $d=3$ deconfined gauge theories, where $d$ is the spatial dimension. The nature of the phase transitions depends on the excitations being condensed. Upon condensing dipolar bound states of fractons or lineons, for $N \geq 4$ we find stable critical points described by decoupled stacks of $d=2$ conformal field theories. Upon condensing lineon excitations, when $N > 4$ we find a gapless phase intermediate between the X-cube and condensed phases, described as an array of $d=1$ conformal field theories. In all these cases, effective subsystem symmetries arise from the mobility constraints on the excitations of the X-cube phase and play an important role in the analysis of the phase transitions.
description: 20+4 pages, 15+3 figures
ЭЛЕКТРОСНАБЖЕНИЕ ОЗОНАТОРНОЙ СТАНЦИИ ДЛЯ ОБЕСПЕЧЕНИЯ СЕЛА ЧИСТОЙ ВОДОЙ
Creators: name: Боканова Алия Абылгазиевна
name: Исабеков Жанибек Назарбекович
name: Биузак Нурканат Габитович
Publisher: name: Кронос: естественные и технические науки
Year: 2020
Subjects: ОЧИСТКА
ОЗОНАТОР
ЭЛЕКТРОСНАБЖЕНИЕ
ВОДА
ПУНКТ
CLEANING
OZONATOR
POWER SUPPLY
WATER
POINT

description: В работе рассматривается возможность электроснабжения озонаторной станции, предназначенной для очистки и обеззараживания питьевой воды малых населенных пунктов.
Model based Multi-agent Reinforcement Learning with Tensor Decompositions
Creators: name: Van Der Vaart, Pascal
name: Mahajan, Anuj
name: Whiteson, Shimon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: A challenge in multi-agent reinforcement learning is to be able to generalize over intractable state-action spaces. Inspired from Tesseract [Mahajan et al., 2021], this position paper investigates generalisation in state-action space over unexplored state-action pairs by modelling the transition and reward functions as tensors of low CP-rank. Initial experiments on synthetic MDPs show that using tensor decompositions in a model-based reinforcement learning algorithm can lead to much faster convergence if the true transition and reward functions are indeed of low rank.
Efficient Algorithms for Node Disjoint Subgraph Homeomorphism Determination
Creators: name: Xiao, Yanghua
name: Wu, Wentao
name: Wang, Wei
name: He, Zhengying
Publisher: name: arXiv
Year: 2007
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences
subject: F.2.2; G.2.2

description: Recently, great efforts have been dedicated to researches on the management of large scale graph based data such as WWW, social networks, biological networks. In the study of graph based data management, node disjoint subgraph homeomorphism relation between graphs is more suitable than (sub)graph isomorphism in many cases, especially in those cases that node skipping and node mismatching are allowed. However, no efficient node disjoint subgraph homeomorphism determination (ndSHD) algorithms have been available. In this paper, we propose two computationally efficient ndSHD algorithms based on state spaces searching with backtracking, which employ many heuristics to prune the search spaces. Experimental results on synthetic data sets show that the proposed algorithms are efficient, require relative little time in most of the testing cases, can scale to large or dense graphs, and can accommodate to more complex fuzzy matching cases.
description: 15 pages, 11 figures, submitted to DASFAA 2008
Valley polarization and susceptibility of composite fermions around nu=3/2
Creators: name: Bishop, N. C.
name: Padmanabhan, M.
name: Vakili, K.
name: Shkolnikov, Y. P.
name: De Poortere, E. P.
name: Shayegan, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report magnetotransport measurements of fractional quantum Hall states in an AlAs quantum well around Landau level filling factor nu = 3/2, demonstrating that the quasiparticles are composite Fermions (CFs) with a valley degree of freedom. By monitoring the valley level crossings for these states as a function of applied symmetry-breaking strain, we determine the CF valley susceptibility and polarization. The data can be explained well by a simple Landau level fan diagram for CFs, and are in nearly quantitative agreement with the results reported for CF spin polarization.
description: to appear in Phys. Rev. Lett
A hot subdwarf-white dwarf super-Chandrasekhar candidate supernova Ia progenitor
Creators: name: Pelisoli, Ingrid
name: Neunteufel, P.
name: Geier, S.
name: Kupfer, T.
name: Heber, U.
name: Irrgang, A.
name: Schneider, D.
name: Bastian, A.
name: van Roestel, J.
name: Schaffenroth, V.
name: Barlow, B. N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Supernova Ia are bright explosive events that can be used to estimate cosmological distances, allowing us to study the expansion of the Universe. They are understood to result from a thermonuclear detonation in a white dwarf that formed from the exhausted core of a star more massive than the Sun. However, the possible progenitor channels leading to an explosion are a long-standing debate, limiting the precision and accuracy of supernova Ia as distance indicators. Here we present HD265435, a binary system with an orbital period of less than a hundred minutes, consisting of a white dwarf and a hot subdwarf -- a stripped core-helium burning star. The total mass of the system is 1.65+/-0.25 solar-masses, exceeding the Chandrasekhar limit (the maximum mass of a stable white dwarf). The system will merge due to gravitational wave emission in 70 million years, likely triggering a supernova Ia event. We use this detection to place constraints on the contribution of hot subdwarf-white dwarf binaries to supernova Ia progenitors.
description: Preprint of an article published in Nature Astronomy. The final authenticated version is available online at: https://doi.org/10.1038/s41550-021-01413-0
Shanghai’s Lao Tang (‘Old Church’) in Historical Cartography. Mapping and Perception of a Sensitive Place
Creators: name: Piastra, Stefano
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: M-GGR/01 Geografia

description: The paper, discussed at the Symposium, deals with the historical mapping of the so-called 'Lao Tang' ('Old Church'), the oldest Catholic church in Shanghai, founded in 1640 ca. by Italian Jesuit Francesco Brancati.
Relative rates of B meson decays into psi(2S) and J/psi mesons
Creators: name: D0 Collaboration
name: Abazov, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report on a study of the relative rates of B meson decays into psi(2S) and J/psi mesons using 1.3 fb^-1 of pbar p collisions at sqrt(s) = 1.96 TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We observe the channels B^0_s -> psi(2S)phi, B^0_s -> J/psi phi, B^+/- -> psi(2S) K^+/-, and B^+/- -> J/psi K^+/- and we measure the relative branching fractions for these channels to be B(B^0_s -> psi(2S)phi)/B(B^0_s -> J/psi phi) = 0.55 +/- 0.11 (stat) +/- 0.07 (syst) +/- 0.06 (B), B(B^+/- -> psi(2S) K^+/-)/B(B^+/- -> J/psi K^+/-) = 0.65 +/- 0.04 (stat) +/- 0.03 (syst) +/- 0.07 (B) where the final error corresponds to the uncertainty in the J/psi and psi(2S) branching ratio into two muons.
description: Published in Phys. Rev. D - Rapid Communication
The Small-Sized Telescopes for the Southern Site of the Cherenkov Telescope Array
Creators: name: White, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Cherenkov Telescope Array (CTA) will use three telescope sizes to efficiently detect cosmic gamma rays in the energy range from several tens of GeV to hundreds of TeV. The Small-Sized Telescopes (SSTs) will form the largest section of the array, covering an area of many square kilometres on the CTA southern site in Paranal, Chile. Up to 70 SSTs will be implemented by an international consortium of institutes and teams as an in-kind contribution to the CTA Observatory. The SSTs will provide unprecedented sensitivity to gamma rays above 1 TeV and the highest angular resolution of any instrument above the hard X-ray band. CTA has recently finalised the technology that will be used for the SSTs: the telescopes will be a dual-reflector design with a primary reflector of ~4 m diameter, equipped with an SiPM-based camera with full waveform readout from $\sim$2000 channels covering a $\sim$9$^\circ$ field of view. The Schwarzschild-Couder optical configuration leads to a small plate-scale, and consequently a compact, cost-efficient camera. In this contribution, we describe the experience gained operating telescope and camera prototypes during the CTA preparatory phase, and the development of the final SST design.
description: Proceedings of the 37th International Cosmic Ray Conference (ICRC2021), Berlin, Germany; PoS (ICRC2021) 728
Magnetic quivers from brane webs with O7$^+$-planes
Creators: name: Akhond, Mohammad
name: Carta, Federico
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the Higgs branch of 5d fixed points engineered using brane webs with an O7$^+$-plane. We use the brane construction to propose a set of rules to extract the corresponding magnetic quivers. Such magnetic quivers are generically framed non-simply-laced quivers containing unitary as well as special unitary gauge nodes. We compute the Coulomb branch Hilbert series of the proposed magnetic quivers. In some specific cases, an alternative magnetic quiver can be obtained either using an ordinary brane web or a brane web with an O5-plane. In these cases, we find a match at the level of the Hilbert series.
description: 21 pages
X-ray crystallographic studies of four photoreactive tetrahydronaphthoquinol derivatives and five related compounds
Creators: name: Secco, Anthony Silvio
Publisher: name: University of British Columbia
Year: 2010

description: The structures of four 4aβ,5,8,8aβ-tetrahydro-1 -naphthoquin-4-ol derivatives have been studied and related to their observed photochemical reactivity. H-abstractions are dominant in the solid state photolyses of these compounds because of their conformations and the topochemical control by the lattice. All structures have been solved by direct methods and refined by least squares procedures. The 2,3,6,7-tetramethyl-4α-ol derivative, C₁₄H₂₀O₂, is monoclinic, space group C2/c, a = 13.898(3), b = 5.228(1), c = 17.316(3) Å, β = 97.442(7)° and Z = 4. This structure was refined to R = 0.058 for 888 reflections. The 2,3- and 6,7-dimethyl-4α-ol compounds-C₁₂H₁₆O₂, are orthorhombic, space group P2₁2₁2₁, and monoclinic, space group 2₁/c, respectively. For the 2,3-derivative, a = 5.148(1), b = 12.269(2), c = 16.478(3) Å, Z = 4 and the refinement of 671 data led to an R of 0.031. The 6,7-compound, a = 9.242(3), b = 22.724(3), c = 5.139(2) Å, β = 102.7(1)°, Z = 4, was refined to R = 0.032 for 626 data. 2,3,4σ,4aβ,6,7,8aβ-heptamethyl-4β-ol, C₁₇H₂₆0₂, is monoclinic, space group P2₁/c, a = 7.497(2), b = 16.792(3), c = 12.687(3) Å, β = 105.30(1)° and Z = 4. An R-value of 0.041 was obtained from the refinement of 1934 reflections. The above compounds have similar conformations which are favorable to H-abstraction reactions. The 6,7-dimethyl-1α,4α-diol C₁₂H₁₈0₂, crystallizes in the monoclinic system, space group P2₁/c, a = 13.870(2), b = 18.025(4), c = 9.236(1) Å, β = 108.098(6)° , Z = 8 and was refined to R = 0.032 for 1461 reflections. The diol compound adopts the same conformation as those above but is not photoreactive. The following four compounds were derived from either tetrahydronaphthoquinol progenitors or their oxidized forms, tetrahydronaphthoquinones. A twistane-1ike structure, twistenone C₁₀H₁₀0₂, was found to crystallize in the monoclinic system, space group P2₁/n, a = 6.381(2), b = 19.454(2), c = 6.708(2) Å, β = 1 06.24( 1 )° and Z = 4. Refinement of 930 reflections converged at R = 0.037. 5-(2,3-dimethylphenyl)-ƴ-butyrolactone crystals, C₁₂H₁₅O₂ are monoclinic, space group P2₁/n, a = 10.847(3), b = 6.924(1), c = 13.654(4) Å, β = 95.22(1)° and Z = 4. The structure was refined to R = 0.057 for 569 reflections. It was hoped that elucidation of this structure would aid in determining the intermediate compound from which it was formed. The methylene ketone C₁₇H₂₄0, derived from the acetylation product of the previously described heptamethyl-4β-ol, is monoclinic, space group P2₁/a, a = 12.374(2), b = 8.771(1), c = 13.743(2) Å, β = 104.027(6)° , Z = 4 and refined to R = 0.037 for 1369 data. A reaction designed to pinacolize a diketone cage compound resulted in a different product from which the hydroxy mesylate derivative C17H280„S, was formed. The crystals are monoclinic, space group P2,/c, a = 9.246(2), b = 10.938(1), c = 17.335(4) Å, β = 102.11(1)° and Z = 4. Refinement converged at R = 0.042 for 2995 reflections.
Our Fundamental Physical Space: An Essay on the Metaphysics of the Wave Function
Creators: name: Chen, Eddy Keming
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: The mathematical structure of realist quantum theories has given rise to a debate about how our ordinary 3-dimensional space is related to the 3N-dimensional configuration space on which the wave function is defined. Which of the two spaces is our (more) fundamental physical space? I review the debate between 3N-Fundamentalists and 3D-Fundamentalists and evaluate it based on three criteria. I argue that when we consider which view leads to a deeper understanding of the physical world, especially given the deeper topological explanation from the unordered configurations to the Symmetrization Postulate, we have strong reasons in favor of 3D-Fundamentalism. I conclude that our evidence favors the view that our fundamental physical space in a quantum world is 3-dimensional rather than 3N-dimensional. I outline lines of future research where the evidential balance can be restored or reversed. Finally, I draw lessons from this case study to the debate about theoretical equivalence.
description: Penultimate Draft. Please cite the published version (2017)
Koszul duality for Operads
Creators: name: Ginzburg, Victor
name: Kapranov, Mikhail
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: This is a copy of the article by the same authors published in Duke Math. J. (1994).
INTEGRAL observations of the blazar Mrk 421 in outburst (Results of a multi-wavelength campaign)
Creators: name: Lichti, G. G.
name: Bottacini, E.
name: Ajello, M.
name: Charlot, P.
name: Collmar, W.
name: Falcone, A.
name: Horan, D.
name: Huber, S.
name: von Kienlin, A.
name: Lähteenmäki, A.
name: Lindfors, E.
name: Morris, D.
name: Nilsson, K.
name: Petry, D.
name: Rüger, M.
name: Sillanpää, A.
name: Spanier, F.
name: Tornikoski, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the results of a multi-wavelength campaign on the blazar Mrk 421 during outburst. We observed four strong flares at X-ray energies that were not seen at other wavelengths (partially because of missing data). From the fastest rise in the X-rays, an upper limit could be derived on the extension of the emission region. A time lag between high-energy and low-energy X-rays was observed, which allowed an estimation of the magnetic-field strength. The spectral analysis of the X-rays revealed a slight spectral hardening of the low-energy (3 - 43 keV) spectral index. The hardness-ratio analysis of the Swift-XRT (0.2 - 10 keV) data indicated a small correlation with the intensity; i. e., a hard-to-soft evolution was observed. At the energies of IBIS/ISGRI (20 - 150 keV), such correlations are less obvious. A multiwavelength spectrum was composed and the X-ray and bolometric luminosities are calculated.
description: 15 pages, 18 figures; accepted by Astronomy & Astrophysics
DPNNet-2.0 Part I: Finding hidden planets from simulated images of protoplanetary disk gaps
Creators: name: Auddy, Sayantan
name: Dey, Ramit
name: Lin, Min-Kai
name: Hall, Cassandra
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The observed sub-structures, like annular gaps, in dust emissions from protoplanetary disk, are often interpreted as signatures of embedded planets. Fitting a model of planetary gaps to these observed features using customized simulations or empirical relations can reveal the characteristics of the hidden planets. However, customized fitting is often impractical owing to the increasing sample size and the complexity of disk-planet interaction. In this paper we introduce the architecture of DPNNet-2.0, second in the series after DPNNet \citep{aud20}, designed using a Convolutional Neural Network ( CNN, here specifically ResNet50) for predicting exoplanet masses directly from simulated images of protoplanetary disks hosting a single planet. DPNNet-2.0 additionally consists of a multi-input framework that uses both a CNN and multi-layer perceptron (a class of artificial neural network) for processing image and disk parameters simultaneously. This enables DPNNet-2.0 to be trained using images directly, with the added option of considering disk parameters (disk viscosities, disk temperatures, disk surface density profiles, dust abundances, and particle Stokes numbers) generated from disk-planet hydrodynamic simulations as inputs. This work provides the required framework and is the first step towards the use of computer vision (implementing CNN) to directly extract mass of an exoplanet from planetary gaps observed in dust-surface density maps by telescopes such as the Atacama Large (sub-)Millimeter Array.
description: 15 pages, 10 figures, to appear in ApJ
Minimum steel requirements for masonry walls : out-of-plane forces
Creators: name: Gajer, Ruben Bernardo
Publisher: name: University of British Columbia
Year: 2010

description: The behaviour of reinforced masonry walls subjected to out-of-plane forces, and the limitations on amounts and spacing of reinforcement required by the present code were examined. A research project was carried out in order to determine experimentally the capacity of the walls, the appropriate spacing of the main reinforcing steel, and the effectiveness and appropriate spacing of transverse reinforcement. Full size non-loadbearing walls were tested under monotonic quasi-static loading. Test results showed that for typical 8 feet (2.44 m) storey height walls, the main steel may be spaced at more than 4 feet (1.22 m) and full primary bending moment may still be achieved. Joint reinforcement appeared to be effective as distribution steel or as main steel for horizontal spans.
The Fornax Cluster VLT Spectroscopic Survey IV -- Cold kinematical substructures in the Fornax core from COSTA
Creators: name: Napolitano, N. R.
name: Gatto, M.
name: Spiniello, C.
name: Cantiello, M.
name: Hilker, M.
name: Arnaboldi, M.
name: Tortora, C.
name: Chaturvedi, A.
name: D'Abrusco, R.
name: Li, R.
name: Paolillo, M.
name: Peletier, R.
name: Saifollahi, T.
name: Spavone, M.
name: Venhola, A.
name: Pota, V.
name: Capaccioli, M.
name: Longo, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The COld STream finder Algorithm (COSTA) is a novel algorithm to find streams in the phase space of planetary nebulae (PNe) and globular cluster (GCs) populations. COSTA isolates groups of particles with small velocity dispersion, using an iterative sigma-clipping over a defined number of neighbor particles. We have applied COSTA to a catalog of about 2000 PNe and GCs from the Fornax Cluster VLT Spectroscopic Survey (FVSS), within 200 kpc from the cluster core, to detect cold substructures and characterize their kinematics. We have found 13 cold substructures, with velocity dispersion ranging from 20 to 100 kms^{-1}, which are likely associated either to large galaxies or to ultra-compact dwarf (UCD) galaxies in the Fornax core. These streams show a clear correlation of their luminosity with the internal velocity dispersion, and their surface brightness with size and distance from the cluster center that are compatible with dissipative processes producing them. However, we cannot exclude that some of these substructures have formed by violent relaxation of massive satellites finally merged into the central galaxy. Among these substructures we have: a stream connecting NGC1387 to the central galaxy, NGC1399, previously reported in literature; a new giant stream produced by the interaction of NGC1382 with NGC1380 and possibly NGC1381; a series of streams kinematically connected to nearby ultra compact dwarf galaxies; clumps of tracers with no clear kinematical association to close cluster members. We show evidence for a variety of cold substructure predicted in simulations. Most of the streams are kinematically connected to UCDs, supporting the scenario that they can be remnants of disrupted dwarf systems. [abridged]
description: 27 Pages, 15 Figures. Accepted for publication in Astronomy and Astrophysics
Can local bulk effects explain the galactic dark matter?
Creators: name: Heydari-Fard, Malihe
name: Sepangi, Hamid R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We obtain the virial theorem within the context of a brane-world model without mirror symmetry or any form of junction condition. Taking a constant curvature bulk (neglecting non-local bulk effects), the local bulk effects generate a geometrical mass, contributing to the gravitational energy which may be used to explain the virial mass discrepancy in clusters of galaxies. We fix the parameter of this model in agreement with observational data.
description: 11 pages, no figures
Single Transverse-Spin Asymmetry in Hadronic Dijet Production
Creators: name: Qiu, Jian-Wei
name: Vogelsang, Werner
name: Yuan, Feng
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the single transverse-spin asymmetry for dijet production in hadronic collisions in both the collinear QCD factorization approach and the Brodsky-Hwang-Schmidt model. We show that a nonvanishing asymmetry is generated by both initial-state and final-state interactions, and that the final-state interactions dominate. We find that in the leading kinematic region where the transverse momentum imbalance of the two jets, q_\perp = P_{1\perp}+P_{2\perp}, is much less than the momentum of either jet, the contribution from the lowest non-trivial perturbative order to both the spin-averaged and the spin-dependent dijet cross sections can be factorized into a hard part that is a function only of the averaged jet momentum P_\perp = (P_{1\perp}-P_{2\perp})/2, and perturbatively generated transverse momentum dependent (TMD) parton distributions. We show that the spin asymmetry at this non-trivial perturbative order can be described by the TMD parton distributions defined in either semi-inclusive DIS or the Drell-Yan process. We derive the same hard parts from both the collinear factorization approach and in the context of the Brodsky-Hwang-Schmidt model, verifying that they are not sensitive to details of the factorized long distance physics.
description: 60 pages, 22 figures
Observational Bounds on Modified Gravity Models
Creators: name: De Felice, Antonio
name: Mukherjee, Pia
name: Wang, Yun
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Modified gravity provides a possible explanation for the currently observed cosmic accelaration. In this paper, we study general classes of modified gravity models. The Einstein-Hilbert action is modified by using general functions of the Ricci and the Gauss-Bonnet scalars, both in the metric and in the Palatini formalisms. We do not use an explicit form for the functions, but a general form with a valid Taylor expansion up to second order about redshift zero in the Riemann-scalars. The coefficients of this expansion are then reconstructed via the cosmic expansion history measured using current cosmological observations. These are the quantities of interest for theoretical considerations relating to ghosts and instabilities. We find that current data provide interesting constraints on the coefficients. The next-generation dark energy surveys should shrink the allowed parameter space for modifed gravity models quite dramatically.
description: 23 pages, 5 figures, uses RevTeX
ЮСУФ САККОКИЙНИНГ "МИФТОҲУ-Л-УЛУМ" АСАРИ НАШРЛАРИНИНГ ҚИЁСИЙ ТАҲЛИЛИ.
Creators: name: Исмоилов, Бобур
Publisher: name: Zenodo
Year: 2023

description: Юсуф Саккокийнинг “Мифтоҳу-л-улум” асари филологик асар унинг учинчи боби энг машҳур ва кенг тарқалган қисми бўлиб, унга бир неча шарҳлар ёзилди ва уни минглаб нусхаларда кўчирилди, асарнинг нашр нусхаларидан юртимизда сақланаётган қадимий нашрлардан 1 тасини тавсиф этилди.
Anatomie d'une première: le contrôle de légalité d'une mesure nationale par la Cour de justice de l'Union européenne. Revue ECU/EURO, Actualités
Creators: name: Pignarre, Pierre-Emmanuel
Publisher: name: RESuME
Year: 2019
Subjects: subject: European System of Central Banks
subject: Système européen de banques centrales
subject: Legality review
subject: contrôle de légalité
subject: Jurisdiction of the European Court of Justice
subject: compétence de la Cour de justice
subject: Latvia
subject: Lettonie

description: In the Rimšēvičs Case the European Court of Justice, for the first time of its history, reviewed the legality of a national measure within the frame of the European System of Central Banks. In its judgment, the Court annulled the decision of the Anti-Corruption Office from Latvia that relieved Mister Ilmārs Rimšēvičs from office as Governor of the Central Bank of Latvia. This paper aims to enlighten the content of this judgment as well as its scope regarding the jurisdiction of the Court of Justice.*
Connecting density fluctuations and Kirkwood-Buff integrals for finite-size systems
Creators: name: Sevilla, Mauricio
name: Cortes-Huerto, Robinson
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Kirkwood-Buff integrals (KBI) connect the microscopic structure and thermodynamic properties of liquid solutions. KBI are defined in the grand canonical ensemble and evaluated assuming the thermodynamic limit (TL). In order to reconcile analytical and numerical approaches, finite-size KBI have been proposed in the literature, resulting in two strategies to obtain their TL values from computer simulations. (i) The spatial block-analysis method in which the simulation box is divided into subdomains of volume $V$ to compute fluctuations of the number of particles. (ii) A direct integration method where a corrected radial distribution function and a kernel that accounts for the geometry of the integration subvolumes are combined to obtain KBI as a function of $V$. In this work, we propose a method that connects both strategies into a single framework. We start from the definition of finite-size KBI, including the integration subdomain and an asymptotic correction to the radial distribution function, and solve them in Fourier space where periodic boundary conditions are trivially introduced. The limit $q\to 0$, equivalent to the value of the KBI in the TL, is obtained via the spatial block-analysis method. When compared to the latter, our approach gives nearly identical results for all values of $V$. Moreover, all finite-size effect contributions (ensemble, finite-integration domains and periodic boundary conditions) are easily identifiable in the calculation. This feature allows us to analyse finite-size effects independently and extrapolate the results of a single simulation to different box sizes. To validate our approach, we investigate prototypical systems, including SPC/E water and aqueous urea mixtures.
title: The Use of Social Media in Enacting Emotional Care to Elderly People During the Covid-19 Pandemic : Empirical Evidence from Rwanda
Creators: name: Irambeshya, Albert
Publisher: name: Institute of African Studies (IAS)
Year: 2023
Subjects: subject: COVID-19
subject: Digital Media
subject: Emotional Care
subject: Family Interactions
subject: Older People
subject: Rwanda
subject: 380
subject: 390

description: The paper examines the relevance of social media use by older people in their emotional care relationships with their kin living apart from them. Older people’s use of social media is still less visible in Rwanda and overlooked by researchers. The folk narrative in Rwanda considers social media usage a youth phenomenon. This paper goes beyond this consideration and shows how social media plays a significant role in care provision during crises like the COVID-19 pandemic. The research uses in-depth interviews of older people and their children to highlight social media’s usefulness in facilitating daily interactions. Since children could not travel to the village to visit their parents, social media allowed them to exchange with their older parents frequently calls and chats, which contained comforting words necessary for reducing the emotional stress created by the COVID-19 pandemic. Even if older people face the challenge of access to smartphones and digital literacy, using social media in enacting emotional care for older people proves to be indispensable in creating solid bonds, belongingness, and attachment to them.
Exciton formation in graphene bilayer
Creators: name: Dillenschneider, Raoul
name: Han, Jung Hoon
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Exciton instability in graphene bilayer systems is studied in the case of a short-ranged Coulomb interaction and a finite voltage difference between the layers. Self-consistent exciton gap equations are derived and solved numerically and analytically under controlled approximation. We obtain that a critical strength of the Coulomb interaction exists for the formation of excitons. The critical strength depends on the amount of voltage difference between the layers and on the inter-layer hopping parameter.
description: 10 pages, 11 figures
Additional file 1: of Effects of magnesium citrate, magnesium oxide and magnesium sulfate supplementation on arterial stiffness in healthy overweight individuals: a study protocol for a randomized controlled trial
Creators: name: JoĂŤlle Schutten
name: Joris, Peter
name: Mensink, Ronald
name: Danel, Richard
name: Goorman, Frans
name: M. Heiner-Fokkema
name: Weersma, Rinse
name: Keyzer, Charlotte
name: Borst, Martin
name: Bakker, Stephan
Publisher: name: Figshare
Year: 2019
Subjects: Medicine
Science Policy

description: SPIRIT 2013 Checklist: Recommended items to address in a clinical trial protocol and related documents (DOC 120 kb)
Spectral plots and the representation and interpretation of biological data
Creators: name: Banerjee, Anirban
name: Jost, Jürgen
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: It is basic question in biology and other fields to identify the char- acteristic properties that on one hand are shared by structures from a particular realm, like gene regulation, protein-protein interaction or neu- ral networks or foodwebs, and that on the other hand distinguish them from other structures. We introduce and apply a general method, based on the spectrum of the normalized graph Laplacian, that yields repre- sentations, the spectral plots, that allow us to find and visualize such properties systematically. We present such visualizations for a wide range of biological networks and compare them with those for networks derived from theoretical schemes. The differences that we find are quite striking and suggest that the search for universal properties of biological networks should be complemented by an understanding of more specific features of biological organization principles at different scales.
description: 15 pages, 7 figures
Reinforcement Learning in Factored Action Spaces using Tensor Decompositions
Creators: name: Mahajan, Anuj
name: Samvelyan, Mikayel
name: Mao, Lei
name: Makoviychuk, Viktor
name: Garg, Animesh
name: Kossaifi, Jean
name: Whiteson, Shimon
name: Zhu, Yuke
name: Anandkumar, Animashree
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: We present an extended abstract for the previously published work TESSERACT [Mahajan et al., 2021], which proposes a novel solution for Reinforcement Learning (RL) in large, factored action spaces using tensor decompositions. The goal of this abstract is twofold: (1) To garner greater interest amongst the tensor research community for creating methods and analysis for approximate RL, (2) To elucidate the generalised setting of factored action spaces where tensor decompositions can be used. We use cooperative multi-agent reinforcement learning scenario as the exemplary setting where the action space is naturally factored across agents and learning becomes intractable without resorting to approximation on the underlying hypothesis space for candidate solutions.
Axisymmetric Magnetorotational Instability in Viscous Accretion Disks
Creators: name: Masada, Youhei
name: Sano, Takayoshi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Axisymmetric magnetorotational instability (MRI) in viscous accretion disks is investigated by linear analysis and two-dimensional nonlinear simulations. The linear growth of the viscous MRI is characterized by the Reynolds number defined as $R_{\rm MRI} \equiv v_A^2/νΩ$, where $v_A$ is the Alfv{é}n velocity, $ν$ is the kinematic viscosity, and $Ω$ is the angular velocity of the disk. Although the linear growth rate is suppressed considerably as the Reynolds number decreases, the nonlinear behavior is found to be almost independent of $R_{\rm MRI}$. At the nonlinear evolutionary stage, a two-channel flow continues growing and the Maxwell stress increases until the end of calculations even though the Reynolds number is much smaller than unity. A large portion of the injected energy to the system is converted to the magnetic energy. The gain rate of the thermal energy, on the other hand, is found to be much larger than the viscous heating rate. Nonlinear behavior of the MRI in the viscous regime and its difference from that in the highly resistive regime can be explained schematically by using the characteristics of the linear dispersion relation. Applying our results to the case with both the viscosity and resistivity, it is anticipated that the critical value of the Lundquist number $S_{\rm MRI} \equiv v_A^2/ηΩ$ for active turbulence depends on the magnetic Prandtl number $S_{{\rm MRI},c} \propto Pm^{1/2}$ in the regime of $Pm \gg 1$ and remains constant when $Pm \ll 1$, where $Pm \equiv S_{\rm MRI}/R_{\rm MRI} = ν/η$ and $η$ is the magnetic diffusivity.
description: Accepted for publication in ApJ -- 18 pages, 9 figures, 1 table
Nonlinear Femtosecond Pulse Reshaping in Waveguide Arrays
Creators: name: Hudson, Darren D.
name: Shish, Kimberlee
name: Schibli, Thomas R.
name: Kutz, J. Nathan
name: Christodoulides, Demetrios N.
name: Morandotti, Roberto
name: Cundiff, Steven T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We observe nonlinear pulse reshaping of femtosecond pulses in a waveguide array due to coupling between waveguides. Amplified pulses from a mode-locked fiber laser are coupled to an AlGaAs core waveguide array structure. The observed power-dependent pulse reshaping agrees with theory, including shortening of the pulse in the central waveguide.
Note Illustrative della Carta geologica d'Italia alla scala 1:50.000, F. 598 S. Agata di Militello, Servizio Geologico d'Italia - ISPRA
Creators: name: Giunta, G.
name: Giorgianni, A.
Publisher: name: INFN Open Access Repository
Year: 2023
Subjects: carta geologica, S. Agata di Militello, Sicilia, Regione Siciliana, CARG, stratigrafia, tettonica, sottosuolo, geological map, stratigraphy, tectonics, subsurface

description: Note illustrative redatte per il Foglio geologico n. 598 S. Agata di Militello della Carta Geologica d'Italia alla scala 1:50.000. 112 pp.
Inertial Effects in Nonequilibrium Work Fluctuations by a Path Integral Approach
Creators: name: Taniguchi, Tooru
name: Cohen, E. G. D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Inertial effects in fluctuations of the work to sustain a system in a nonequilibrium steady state are discussed for a dragged massive Brownian particle model using a path integral approach. We calculate the work distribution function in the laboratory and comoving frames and prove the asymptotic fluctuation theorem for these works for any initial condition. Important and observable differences between the work fluctuations in the two frames appear for finite times and are discussed concretely for a nonequilibrium steady state initial condition. We also show that for finite times a time oscillatory behavior appears in the work distribution function for masses larger than a nonzero critical value.
description: 16 pages, 7 figures
Stochastic models of travel-demand behaviour : a comparison of three disaggregate model forms using incomplete data
Creators: name: Kahkeshan, Siavoche
Publisher: name: University of British Columbia
Year: 2010

description: This thesis is concerned with calibrating a behavioural travel demand model by adjustment of an incomplete data base and applying it to three statistical methods: Logit, Probit and Discriminant Analysis, comparing the forecasting ability of each of the models and analysing the responsiveness of decision variables to potential changes in the urban transportation system. In this research, the current state of the art is indicated and the mathematical structure of the models are discussed. Attempts are also made to determine the value of time for the Vancouver Population as a means of estimating the validity of the model calibration, and also to discuss the results in transportation policy terms.
ОБ ЭКОНОМИЧЕСКИХ МЕРАХ ГОСУДАРСТВА ПО СДЕРЖИВАНИЮ СНИЖЕНИЯ ПРИБЫЛИ ПРЕДПРИЯТИЙ В ПЕРИОД КОРОНАВИРУСНОЙ ЭПИДЕМИИ
Creators: name: Филинков Александр Михайлович
name: Белышева Галина Георгиевна
Publisher: name: Кронос: экономические науки
Year: 2020
Subjects: ЭКОНОМИКА
ГОСУДАРСТВО
КОРОНАВИРУС
ПРЕДПРИЯТИЕ
ECONOMY
STATE
CORONAVIRUS
ENTERPRISE

description: В данной статье рассматривается ситуация, сложившаяся в период коронавирусной эпидемии предприятий. Об экономических мерах государства по сдерживанию снижения прибыли предприятий.