cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Supplementary materials from Is there a causal relationship between executive function and liability to mental health and substance use? A Mendelian randomization approach
Creators: name: Burton, Sabrina M. I.
name: Sallis, Hannah M.
name: Hatoum, Alexander S.
name: Munafò, Marcus R.
name: Reed, Zoe E.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Health Care
subject: Diseases
subject: 111706 Epidemiology
subject: FOS: Health sciences
subject: 179999 Psychology and Cognitive Sciences not elsewhere classified
subject: FOS: Psychology

description: Poorer performance in tasks testing executive function (EF) is associated with a range of psychopathologies such as schizophrenia, major depressive disorder (MDD) and anxiety, as well as smoking and alcohol consumption. We used two-sample bidirectional Mendelian randomization to examine whether these may reflect causal relationships and the direction of causation. We used genome-wide association study summary data (N = 17 310 to 848 460) for a common EF factor score (cEF), schizophrenia, MDD, anxiety, smoking initiation, alcohol consumption, alcohol dependence and cannabis use disorder (CUD). We found evidence of increased cEF on reduced schizophrenia liability (OR = 0.10; CI: 0.05 to 0.19; p-value = 3.43 × 10−12), MDD liability (OR = 0.52; CI: 0.38 to 0.72; p-value = 5.23 × 10−05), drinks per week (β = –0.06; CI: –0.10 to −0.02; p-value = 0.003) and CUD liability (OR = 0.27; CI: 0.12 to 0.61; p-value = 1.58 × 10−03). We also found evidence of increased schizophrenia liability (β = −0.04; CI: −0.04 to −0.03; p-value = 3.25 × 10−27) and smoking initiation on decreased cEF (β = −0.06; CI: −0.09 to −0.03; p-value = 6.11 × 10−05). Our results indicate potential causal relationships between cEF and mental health and substance use. Further studies are required to improve our understanding of the underlying mechanisms of these effects, but our results suggest that EF may be a promising intervention target for mental health and substance use.
title: Lutz Fenske, Jörg Jarnut und Matthias Wemhoff (Hrsg.): Splendor palatii. Neue Forschungen zu Paderborn und anderen Pfalzen der Karolingerzeit (Deutsche Königspfalzen 5; Veröffentlichungen des Max- Planck-Instituts für Geschichte 11/5). Göttingen 2001
Creators: name: Untermann, Matthias
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Lutz Fenske, Jörg Jarnut und Matthias Wemhoff (Hrsg.): Splendor
palatii. Neue Forschungen zu Paderborn und anderen Pfalzen der Karolingerzeit (Deutsche Königspfalzen 5; Veröffentlichungen des Max-Planck-Instituts für Geschichte 11/5). Göttingen: Vandenhoek & Ruprecht 2001. 231 Seiten. ISBN 3-525-35311-1
Generalized Bell states and principal realization of the Yangian Y(sl_N)
Creators: name: Liu, Ming
name: Bai, Chengming
name: Ge, Mo-Lin
name: Jing, Naihuan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary: 17B37, Secondary: 17B65, 81P68

description: We prove that the action of the Yangian algebra Y(sl_N) is better described by the principal generators on the tensor product of the fundamental representation and its dual. The generalized Bell states or maximally entangled states are permuted by the principal generators in a dramatically simple manner on the tensor product. Under the Yangian symmetry the new quantum number J^2 is also explicitly computed, which gives an explanation for these maximally entangled states.
description: 15 pages
Supplementary document for Investigation of refractive index dynamics during embryo development using digital holographic microscopy. - 6390310.pdf
Creators: name: Dwapanyin, George
name: Chow, Darren
name: Tan, Tiffany
name: Dubost, Nicolas
name: Morizet, Josephine
name: Dunning, Kylie
name: Dholakia, Kishan
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: supplementary material
Supplementary document for Investigation of refractive index dynamics during embryo development using digital holographic microscopy. - 6453351.pdf
Creators: name: Dwapanyin, George
name: Chow, Darren
name: Tan, Tiffany
name: Dubost, Nicolas
name: Morizet, Josephine
name: Dunning, Kylie
name: Dholakia, Kishan
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplemental Document
title: Peter Steppuhn: Glasfunde des 11. bis 17. Jahrhunderts aus Schleswig (Ausgrabungen in Schleswig. Berichte und Studien 16). Neumünster: Wachholtz 2002
Creators: name: Pause, Carl
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Peter Steppuhn: Glasfunde des 11. bis 17. Jahrhunderts aus Schleswig (Ausgrabungen in Schleswig. Berichte und Studien 16). Neumünster: Wachholtz 2002. 133 Seiten mit 55 s/w-Abbildungen und 2 Farbtafeln. ISBN 3-529-01466-6
D4.2 Data Management Plan (DMP)
Creators: name: Lea, Nathan
Publisher: name: Zenodo
Year: 2023
Subjects: data managmet plan
FAIR
Open Data
Security
Confidentiality
Governance
Compliance

description: This Deliverable provides the Data Management Plan (DMP) for AIDAVA. It is based on the European Commission Template for Horizon 2020 projects available at https://ec.europa.eu/research/participants/data/ref/h2020/gm/reporting/h2020-tpl-oa-data-mgt-plan_en.docx. AIDAVA has populated this Data Management Plan in line with recommended EC guidelines. It will be updated as the project proceeds.
A DMP is an important component of any data intensive programme because it imposes a need for balance between protection of data, success of the programme and the potential for reuse of data. AIDAVA is unique as a project because the primary data handling is focused on data ingestion and curation as a tool to assist citizens in managing their own health data.
The approach to developing the data management plan has included workshop discussions with partners at the October 2022 Kick Off Meeting in Maastricht and a dedicated data flow workshop held in Tallinn in December 2023.
The details gathered were compared with the proposal and obligations on the partners as described in the consortium agreement. They were also compared with the developing Research Protocols for both the Breast Cancer and Cardiovascular Disease (CVD) use cases developed in Task 1.
The results of the details gathered are presented as the Data Management Plan in Section 3 of this Deliverable. It concludes with the next steps and specification of updates in time for M40's second version of the Data Management Plan.
Restricted Manipulation in Iterative Voting: Convergence and Condorcet Efficiency
Creators: name: Grandi, Umberto
name: Loreggia, Andrea
name: Rossi, Francesca
name: Venable, Kristen Brent
name: Walsh, Toby
Publisher: name: arXiv
Year: 2013
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: In collective decision making, where a voting rule is used to take a collective decision among a group of agents, manipulation by one or more agents is usually considered negative behavior to be avoided, or at least to be made computationally difficult for the agents to perform. However, there are scenarios in which a restricted form of manipulation can instead be beneficial. In this paper we consider the iterative version of several voting rules, where at each step one agent is allowed to manipulate by modifying his ballot according to a set of restricted manipulation moves which are computationally easy and require little information to be performed. We prove convergence of iterative voting rules when restricted manipulation is allowed, and we present experiments showing that most iterative voting rules have a higher Condorcet efficiency than their non-iterative version.
description: In Proceedings SR 2013, arXiv:1303.0071
title: Klingsor - Siebenbürgische Zeitschrift, 1934: Festschrift zum Zehnjahresheft der Siebenbürgischen Zeitschrift Klingsor
title: Festschrift zum Zehnjahresheft der Siebenbürgischen Zeitschrift Klingsor
titleType: AlternativeTitle
Creators: name: Klingsor-Siebenbürgische Zeitschrift
Publisher: name: Klingsor - Siebenbürgische Zeitschrift
Year: 2023

description: Unser Echo...90 Kühle Verheißung...89 Singende Schüler...85a Der Charakter...84-89 Sprache und Volkstum...81-83 Eine Offizierswitwe...77-81 Frauenbüste...77a Sinn und Berechtigung des Frauenstudiums im dritten Reich...71-77 Mutter im Herbst...71 Siebenbürgische Berge...69a Das Generationsproblem in unserer sächsischen Bauernschaft...67-70 Idealismus und Wirklichkeit...64-67 Die linke Wange...61-63 Malajeschter Kamine auf dem Butschetsch...61a An unsere Jugend...53-60 Kopf einer männlichen Figur...53a Das Erdbeben...50-53 Der Maler Nagy Imre...46-50 Bauer...46 Am Bache...45a Das neue deutsche Lebensgefühl...43-45 Knabenbildnis...37a Geschichtslose Kunst...33-42 Weisheit und Würde...32-33 Stilleben...29a Hermann Stehr...28-31 Die kleine Stadt...25-28 Der dichtende Bauer...24-25 Zeichnung...13a Der Meierhof von Arlow...20-24 Am Schwarzen Meer...20 Die Entführung des Ganymed...17-19 Christuskopf...13a Bedrängnis...12-17 Inschrift nach zehn Jahren...11 Erinnerungsaufsatz...7-9
Relations between X-ray timing features and spectral parameters of Galactic black hole X-ray binaries
Creators: name: Stiele, H.
name: Belloni, T. M.
name: Kalemci, E.
name: Motta, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a study of correlations between spectral and timing parameters for a sample of black hole X-ray binary candidates. Data are taken from GX 339-4, H 1743-322, and XTE J1650-500, as the Rossi X-ray Timing Explorer (RXTE) observed complete outbursts of these sources. In our study we investigate outbursts that happened before the end of 2009 to make use of the high-energy coverage of the HEXTE detector and select observations that show a certain type of quasi-periodic oscillations (type-C QPOs). The spectral parameters are derived using the empirical convolution model simpl to model the Comptonized component of the emission together with a disc blackbody for the emission of the accretion disc. Additional spectral features, namely a reflection component, a high-energy cut-off, and excess emission at 6.4 keV, are taken into account. Our investigations confirm the known positive correlation between photon index and centroid frequency of the QPOs and reveal an anticorrelation between the fraction of up-scattered photons and the QPO frequency. We show that both correlations behave as expected in the "sombrero" geometry. Furthermore, we find that during outburst decay the correlation between photon index and QPO frequency follow a general track, independent of individual outbursts.
description: 8 pages, 5 figures, accepted for publication by MNRAS
title: Inhibition of cracking in pulsed laser welding of aluminium alloys
Creators: name: Jeong, Seog-Yoon
Publisher: name: University of Glasgow
Year: 1998
Subjects: subject: Materials science.

description: Pulsed laser welding of Aluminium Silicon alloys has been investigated experimentally to discover the causes of welding cracking which affect these alloys and a means for its prevention. Cracking was observed in conduction and non-conduction limited modes of welding, being more severe in the latter because of higher quenching rates induced in the fused material. The specimen alloys chosen were a heat-treatable type-6082-T6 and a non-heat-treatable type-5251-H24. Welds were generated with a high pulse repetition frequency ND3+:YAG laser, capable of operating with a mean power of 500W. The power intensity in the weld was selected by variation of the pulse parameters to achieve the desired welding modes. Control was exercised over the degree of overlap present between successive weld spots by appropriate variations of the pulse repetition frequency and the velocity of translation of the incident beam. Cross sections of weld were examined microscopically; a scanning electron microscope was employed to analyse variations in the concentrations of the alloying elements in the fused zone. With there results, cracking was attributed to tensile failure in the last alloy to freeze which was weakened by the segregation of silicon consequent upon non-equilibrium freezing of the volatile components was another caused factor. A complete solution was found by the inclusion of a high silicon content wire in the weld preparation. By this means, the silicon content in the last metal was raised, in the conduction limited mode, and spatial radients of the temperature were reduced.
The dominant imprint of Rossby waves in the climate network
Creators: name: Wang, Yang
name: Gozolchiani, Avi
name: Ashkenazy, Yosef
name: Berezin, Yehiel
name: Guez, Oded
name: Havlin, Shlomo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: The connectivity pattern of networks, which are based on a correlation between ground level temperature time series, shows a dominant dense stripe of links in the southern ocean. We show that statistical categorization of these links yields a clear association with the pattern of an atmospheric Rossby wave, one of the major mechanisms associated with the weather system and with planetary scale energy transport. It is shown that alternating densities of negative and positive links (correlations) are arranged in half Rossby wave distances around 3,500 km, 7,000 km and 10,000 km and are aligned with the expected direction of energy flow, distribution of time delays and the seasonality of these waves. It is also shown that long distance links (i.e., of distances larger than 2,000 km) that are associated with Rossby waves are the most dominant in the climate network. Climate networks may thus be used as an efficient new way to detect and analyze Rossby waves, based on reliable and available ground level measurements, in addition to the frequently used 300 hPa reanalysis meridional wind data.
description: 5 pages, 5 figures
Deconfined criticality in the frustrated Heisenberg honeycomb antiferromagnet
Creators: name: Ganesh, R.
name: Brink, Jeroen van den
name: Nishimoto, Satoshi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using the density-matrix renormalization group, we determine the phase diagram of the spin 1/2 Heisenberg antiferromagnet on a honeycomb lattice with a nearest neighbor interaction J1 and a frustrating, next-neighbor exchange J2. As frustration increases, the ground state exhibits Neel, plaquette and dimer orders, with critical points at J2/J1 = 0.22 and 0.35. We observe that both the spin gap and the corresponding order parameters vanish continuously at both the critical points, indicating the presence of deconfined quantum criticality.
Stability of the microcanonical ensemble in Euclidean Quantum Gravity
Creators: name: Marolf, D
name: Santos, JE
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: Regular Article - Theoretical Physics
AdS-CFT Correspondence
Black Holes in String Theory
Models of Quantum Gravity

description: Abstract This work resolves a longstanding tension between the physically-expected stability of the microcanonical ensemble for gravitating systems and the fact that the known negative mode of the asymptotically flat Schwarzschild black hole decays too rapidly at infinity to affect the ADM energy boundary term at infinity. The key to our study is that we fix an appropriate off-shell notion of energy, which we obtain by constructing the microcanonical partition function as an integral transform of the canonical partition function. After applying the rule-of-thumb for Wick rotations from our recent companion paper to deal with the conformal mode problem of Euclidean gravity, we find a positive definite action for linear perturbations about any Euclidean Schwarzchild (-AdS) black hole. Most of our work is done in a cavity with reflecting boundary conditions, but the cavity wall can be removed by taking an appropriate limit.
Effect of Power Losses on Self-Focusing of High Intensity Laser Beam in Gases
Creators: name: Semak, V. V.
name: Shneider, M. N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A theoretical study of power loss from periphery of an ultrashort pulse laser beam and temporally resolved defocussing produced by laser induced plasma are performed using paraxial approximation. Our analysis incorporate consideration of spatial distribution of the laser beam irradiance and the results show that substantial power losses (10%-80%) occur from the beam periphery limiting length of a filament. It was also shown that generally accepted concept of self-focusing critical power is inconsistent with consideration of self-induced refraction of spatially distributed laser beam. A new criterion for self-focusing and hypothesis for multiple filamentation are proposed.
Infinite games with uncertain moves
Creators: name: Asher, Nicholas
name: Paul, Soumya
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We study infinite two-player games where one of the players is unsure about the set of moves available to the other player. In particular, the set of moves of the other player is a strict superset of what she assumes it to be. We explore what happens to sets in various levels of the Borel hierarchy under such a situation. We show that the sets at every alternate level of the hierarchy jump to the next higher level.
description: In Proceedings SR 2013, arXiv:1303.0071
Numerical investigation of various twisted tapes enhancing a circular microchannel heat sink performance
Creators: name: Rona, Aldo
name: Ali, Abdullah
name: Angelino, Matteo
Publisher: name: figshare
Year: 2022
Subjects: subject: 91502 Computational Heat Transfer
subject: FOS: Other engineering and technologies
subject: 91501 Computational Fluid Dynamics

description: The continuous power increase and miniaturization of modern electronics require increasingly effective thermal management systems. The thermo-hydraulic performance of water-cooled L×L square-base silicon microchannel heat sinks is investigated by a conjugate heat transfer and computational fluid dynamics model over the Reynolds number range 100 to 500. Water at a constant inlet temperature of 298 K runs through 33 parallel tubes, extracting heat from the bottom wall that has a 100 W/cm2 constant heat flux input. Hydro-thermal per- formance-enhancing tape inserts are numerically tested featuring (i) radial gaps between the tape and the tube, (ii) tape twist with axial pitch distances of ∞, L/2, or L/4, (iii) zero, one, or two 90-degree angular steps between consecutive tape segments, (iv) alternating clockwise and anti-clockwise consecutive twisted tape segments, and combinations of these features. The radial gaps produce both a hydraulic and a thermal performance loss. All combinations of tape twist, angular steps, and twist direction reversal produced better thermal performance gains to hydraulic loss trade-offs than the baseline microchannel configuration with no tape. The microchannel heat sinks with four L/4 alternating pitch consecutive helical tape segments provided the lowest bottom wall av- erage temperature, 16.13 K below that with not tape, at the same Reynolds number of 500. This predicted tem- perature drop is a significant achievement towards conditioning electronic components so they may be longer- lasting, use less energy, and have a reduced environmental impact.
Anisotropic Local Correlations and Dynamics in a Relaxor Ferroelectric
Creators: name: Takenaka, Hiroyuki
name: Grinberg, Ilya
name: Rappe, Andrew M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Relaxor ferroelectrics have been a focus of intense attention due to their anomalous dielectric characteristics, diffuse phase transitions, and strong piezoelectricity. Understanding the structure and dynamics of relaxors has been one of the long-standing challenges in solid-state physics, with the current model of polar nanoregions in a non-polar matrix providing only a qualitative description of the relaxor phase transitions. In this paper, we investigate the local structure and dynamics in 75%PbMg$_{1/3}$Nb$_{2/3}$O$_3$-25%PbTiO$_3$ (PMN-PT) using molecular dynamics simulations and the dynamic pair distribution function technique. We show for the first time that relaxor transitions can be described by local order parameters. We find that structurally, the relaxor phase is characterized by the presence of highly anisotropic correlations between the local cation displacements. These correlations resemble the hydrogen bond network in water. Our findings contradict the current polar nanoregion model; instead, we suggest a new model of a homogeneous random network of anisotropically coupled dipoles.
description: We combine our manuscript and supplementary information in one file. 5 pages and 3 figures in main text. 3 pages and 3 figures in supplementary information
Shifts of finite type with nearly full entropy
Creators: name: Pavlov, Ronnie
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37B50, 37B10, 37A15

description: For any fixed alphabet A, the maximum topological entropy of a Z^d subshift with alphabet A is obviously log |A|. We study the class of nearest neighbor Z^d shifts of finite type which have topological entropy very close to this maximum, and show that they have many useful properties. Specifically, we prove that for any d, there exists beta_d such that for any nearest neighbor Z^d shift of finite type X with alphabet A for which log |A| - h(X) < beta_d, X has a unique measure of maximal entropy. Our values of beta_d decay polynomially (like O(d^(-17))), and we prove that the sequence must decay at least polynomially (like d^(-0.25+o(1))). We also show some other desirable properties for such X, for instance that the topological entropy of X is computable and that the unique m.m.e. is isomorphic to a Bernoulli measure. Though there are other sufficient conditions in the literature which guarantee a unique measure of maximal entropy for Z^d shifts of finite type, this is (to our knowledge) the first such condition which makes no reference to the specific adjacency rules of individual letters of the alphabet.
description: 33 pages, accepted by Proceedings of the London Mathematical Society
Quasiclassical theory of disordered multi-channel Majorana quantum wires
Creators: name: Neven, Patrick
name: Bagrets, Dmitry
name: Altland, Alexander
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Multi-channel spin-orbit quantum wires, when subjected to a magnetic field and proximity coupled to s-wave superconductor, may support Majorana states. We study what happens to these systems in the presence of disorder. Inspired by the widely established theoretical methods of mesoscopic superconductivity, we develop a la Eilenberger a quasiclassical approach to topological nanowires valid in the limit of strong spin-orbit coupling. We find that the "Majorana number", distinguishing between the state with Majorana fermion (symmetry class B) and no Majorana (class D), is given by the product of two Pfaffians of gapped quasiclassical Green's functions fixed by right and left terminals connected to the wire. A numerical solution of the Eilenberger equations reveals that the class D disordered quantum wires are prone to the formation of the zero-energy anomaly (class D impurity spectral peak) in the local density of states which shares the key features of the Majorana peak. In this way we confirm the robustness of our previous conclusions [Phys. Rev. Lett. 109, 227005 (2012)] on a more restrictive system setup. Generally speaking, we find that the quasiclassical approach provides a highly efficient means to address disordered class D superconductors both in the presence and absence of topological structures.
description: 14 pages, 7 figures
The Monomial Conjecture and Order Ideals
Creators: name: Dutta, S. P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In this article first we prove that a special case of the order ideal conjecture, originating from the work of Evans and Griffith in equicharacteristic, implies the monomial conjecture due to M. Hochster. We derive a necessary and sufficient condition for the validity of this special case in terms certain syzygis of canonical modules of normal domains possessing free summands. We also prove some special cases of this observation.
Compton Dominance and the Blazar Sequence
Creators: name: Finke, Justin
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Does the "blazar sequence" exist, or is it a result of a selection effect, due to the difficulty in measuring the redshifts of blazars with both high synchrotron peak frequencies (\gtrsim 10^{15} Hz) and luminosities (\gtrsim 10^{46} erg s^{-1})? We explore this question with a sample of blazars from the Second Catalog of Active Galactic Nuclei (AGN) from the Fermi Large Area Telescope (LAT). The Compton dominance, the ratio of the peak of the Compton to the synchrotron peak luminosities, is essentially a redshift-independent quantity, and thus crucial to answering this question. We find that a correlation exists between Compton dominance and the peak frequency of the synchrotron component for all blazars in the sample, including ones with unknown redshift. We then construct a simple model to explain the blazar properties in our sample, where the difference between sources is due to only the magnetic field of the blazar jet emitting region, the external radiation field energy density, and the jet angle to the line of sight, with the magnetic field strength and external energy density being correlated. This model can reproduce the trends of the blazars in the sample, and predicts blazars may be discovered in the future with high synchrotron peak frequencies and luminosities. At the same time the simple model reproduces the lack of high-synchrotron peaked blazars with high Compton dominances (\gtrsim 1).
description: 12 pages, 9 figures, 3 tables. Accepted by ApJ
Про один конструктивний тип древньоруських укріплень в Середньому Подніпров’ї
Creators: name: Кучера, Михайло
Publisher: name: figshare
Year: 2019
Subjects: Archaeology

description: Кучера, М. П. 1969. Про один конструктивний тип древньоруських укріплень в Середньому Подніпров’ї. Археологія, XXII, с. 180–195.
Faraday Rotation Distributions from Stellar Magnetism in Wind-Blown Bubbles
Creators: name: Ignace, Richard
name: Pingel, Nickolas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Faraday rotation is a valuable tool for detecting magnetic fields. Here the technique is considered in relation to wind-blow bubbles. In the context of spherical winds with azimuthal or split monopole stellar magnetic field geometries, we derive maps of the distribution of position angle (PA) rotation of linearly polarized radiation across projected bubbles. We show that the morphology of maps for split monopole fields are distinct from those produced by the toroidal field topology; however, the toroidal case is the one most likely to be detectable because of its slower decline in field strength with distance from the star. We also consider the important case of a bubble with a spherical sub-volume that is field-free to approximate crudely a "swept-up" wind interaction between a fast wind (or possibly a supernova ejecta shell) overtaking a slower magnetized wind from a prior state of stellar evolution. With an azimuthal field, the resultant PA map displays two arc-like features of opposite rotation measure, similar to observations of the supernova remnant G296.5+10.0. We illustrate how PA maps can be used to disentangle Faraday rotation contributions made by the interstellar medium versus the bubble. Although our models involve simplifying assumptions, their consideration leads to a number of general robust conclusions for use in the analysis of radio mapping datasets.
description: Astrophysical Journal, accepted
How to Be Both Rich and Happy: Combining Quantitative and Qualitative Strategic Reasoning about Multi-Player Games (Extended Abstract)
Creators: name: Bulling, Nils
name: Goranko, Valentin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: We propose a logical framework combining a game-theoretic study of abilities of agents to achieve quantitative objectives in multi-player games by optimizing payoffs or preferences on outcomes with a logical analysis of the abilities of players for achieving qualitative objectives of players, i.e., reaching or maintaining game states with desired properties. We enrich concurrent game models with payoffs for the normal form games associated with the states of the model and propose a quantitative extension of the logic ATL* enabling the combination of quantitative and qualitative reasoning.
description: In Proceedings SR 2013, arXiv:1303.0071
Про одну групу середньовічної кераміки на території УРСР
Creators: name: Кучера, Михайло
Publisher: name: figshare
Year: 2019
Subjects: Archaeology

description: Кучера, М. П. 1969. Про одну групу середньовічної кераміки на території УРСР. В: Бідзіля, В. І. (відп. ред.). Слов’яно-руські старожитності. Київ: Наукова думка, с. 174–181.
Conic Sections and Meet Intersections in Geometric Algebra
Creators: name: Hitzer, Eckhard
Publisher: name: arXiv
Year: 2013
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: This paper first gives a brief overview over some interesting descriptions of conic sections, showing formulations in the three geometric algebras of Euclidean spaces, projective spaces, and the conformal model of Euclidean space. Second the conformal model descriptions of a subset of conic sections are listed in parametrizations specific for the use in the main part of the paper. In the third main part the meets of lines and circles, and of spheres and planes are calculated for all cases of real and virtual intersections. In the discussion special attention is on the hyperbolic carriers of the virtual intersections.
description: 15 pages, 8 figures
Interplay of Aharonov-Bohm and Berry phases in gate-defined graphene quantum dots
Creators: name: Heinl, Julia
name: Schneider, Martin
name: Brouwer, Piet W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the influence of a magnetic flux tube on the possibility to electrostatically confine electrons in a graphene quantum dot. Without magnetic flux tube, the graphene pseudospin is responsible for a quantization of the total angular momentum to half-integer values. On the other hand, with a flux tube containing half a flux quantum, the Aharonov-Bohm phase and Berry phase precisely cancel, and we find a state at zero angular momentum that cannot be confined electrostatically. In this case, true bound states only exist in regular geometries for which states without zero-angular-momentum component exist, while non-integrable geometries lack confinement. We support these arguments with a calculation of the two-terminal conductance of a gate-defined graphene quantum dot, which shows resonances for a disc-shaped geometry and for a stadium-shaped geometry without flux tube, but no resonances for a stadium-shaped quantum dot with a $π$-flux tube.
description: 7 pages, 5 figures
Древньоруське городище біля с.Городище під Переяславом-Хмельницьким
Creators: name: Кучера, Михайло
Publisher: name: figshare
Year: 2019
Subjects: Archaeology

description: Кучера, М. П. 1970. Древньоруське городище біля с. Городище під Переяславом-Хмельницьким. Археологія, XXIV, с. 217–225.
Competing orders in M-theory: superfluids, stripes and metamagnetism
Creators: name: Donos, Aristomenis
name: Gauntlett, Jerome P.
name: Sonner, Julian
name: Withers, Benjamin
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyse the infinite class of d=3 CFTs dual to skew-whiffed AdS_4 X SE_7 solutions of D=11 supergravity at finite temperature and charge density and in the presence of a magnetic field. We construct black hole solutions corresponding to the unbroken phase, and at zero temperature some of these become dyonic domain walls of an Einstein-Maxwell-pseudo-scalar theory interpolating between AdS_4 in the UV and new families of dyonic AdS_2 X R^2 solutions in the IR. The black holes exhibit both diamagnetic and paramagnetic behaviour. We analyse superfluid and striped instabilities and show that for large enough values of the magnetic field the superfluid instability disappears while the striped instability remains. For larger values of the magnetic field there is also a first-order metamagnetic phase transition and at zero temperature these black hole solutions exhibit hyperscaling violation in the IR with dynamical exponent z=3/2 and θ=-2.
description: 33 pages, 11 figures
Another generalization of the gcd-sum function
Creators: name: Tóth, László
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11A25, 11N37, 11M32

description: We investigate an arithmetic function representing a generalization of the gcd-sum function, considered by Kurokawa and Ochiai in 2009 in connection with the multivariable global Igusa zeta function for a finite cyclic group. We show that the asymptotic properties of this function are closely connected to the Piltz divisor function. A generalization of Menon's identity is also considered.
description: 9 pages
The triangle-free graphs with rank 6
Creators: name: Wang, Long
name: Fan, Yi-Zheng
name: Wang, Yi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C50

description: The rank of a graph G is defined to be the rank of its adjacency matrix A(G). In this paper we characterize all connected triangle-free graphs with rank 6.
Lossy Channel Games under Incomplete Information
Creators: name: Dimitrova, Rayna
name: Finkbeiner, Bernd
Publisher: name: arXiv
Year: 2013
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: In this paper we investigate lossy channel games under incomplete information, where two players operate on a finite set of unbounded FIFO channels and one player, representing a system component under consideration operates under incomplete information, while the other player, representing the component's environment is allowed to lose messages from the channels. We argue that these games are a suitable model for synthesis of communication protocols where processes communicate over unreliable channels. We show that in the case of finite message alphabets, games with safety and reachability winning conditions are decidable and finite-state observation-based strategies for the component can be effectively computed. Undecidability for (weak) parity objectives follows from the undecidability of (weak) parity perfect information games where only one player can lose messages.
description: In Proceedings SR 2013, arXiv:1303.0071
Археологические исследования Волынского отряда
Creators: name: Кучера, Михайло
Publisher: name: figshare
Year: 2019
Subjects: Archaeology

description: Кучера, М. П. 1971. Археологические исследования Волынского отряда. В: Толочко, П. П. (отв. ред.). Археологические исследования на Украине в 1968 г., ІІІ. Киев: Наукова думка, с. 242–245.
Revealing the Complex Transport Behaviors in Warm Dense Hydrogen by Including Nuclear Quantum Effects
Creators: name: Kang, Dongdong
name: Sun, Huayang
name: Dai, Jiayu
name: Zhao, Zengxiu
name: Hou, Yong
name: Zeng, Jiaolong
name: Yuan, Jianmin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Nuclear quantum effects (NQEs) on the structures and transport properties of dense liquid hydrogen at densities of 10-100 g/cm3 and temperatures of 0.1-1 eV are fully assessed using \textit{ab initio} path-integral molecular dynamics simulations. With the inclusion of NQEs, ionic diffusions are strongly enhanced by the magnitude from 100% to 15% with increasing temperature, while electrical conductivities are significantly suppressed. The analyses of ionic structures and zero-point energy show also the importance of NQEs in these regime. The significant quantum delocalization of ions introduces expressively different scattering cross section between protons compared with classical particle treatments, which can explain the large alterability of transport behaviors. Furthermore, the energy, pressure, and isotope effects are also greatly influenced by NQEs. The complex behaviors show that NQEs can not be neglected for dense hydrogen even in the warm dense regime.
description: 5 pages, 4 figures
"What being a leader means is to inspire and empower others around you": Reflections of a social scientist
Creators: name: Levy, Charmain
name: Maurice, Patricia A.
Publisher: name: Epistimi
Year: 2025
Subjects: subject: feminist studies
subject: international development
subject: Gender equality
subject: Diversity, Equity, Inclusion

description: Prof. Charmain Levy, an eminent scholar of international development studies, feminist studies and social sciences from the Université du Québec en Outaouais, shares her thoughts on successful strategies women may take to advance our rights and opportunities and provides some advice specifically for senior women leaders in academia.  This is a copy of a post published in the Epistimi blog series at: https://www.epistimi.org/blog/what-being-a-leader-means-is-to-inspire-and-empower-others-around-you-reflections-of-a-social-scientist
On the photosynthetic potential in the very Early Archean oceans
Creators: name: Avila, Daile
name: Cardenas, Rolando
name: Martin, Osmel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Biological Physics (physics.bio-ph)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: In this work we apply a mathematical model of photosynthesis to quantify the potential for photosynthetic life in the very Early Archean oceans. We assume the presence of oceanic blockers of ultraviolet radiation, specifically ferrous ions. For this scenario, our results suggest a potential for photosynthetic life greater than or similar to that in later eras/eons, such as the Late Archean and the current Phanerozoic eon.
description: Accepted for publication in Origins of Life and Evolution of Biospheres
Supplementary data from Evolutionary models demonstrate rapid and adaptive diversification of Australo-Papuan pythons
Creators: name: Esquerré, Damien
name: Brennan, Ian G.
name: Donnellan, Stephen
name: Keogh, J. Scott
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences

description: Includes supplementary method descriptions and figure S1
A New Geometric Approach to Latent Topic Modeling and Discovery
Creators: name: Ding, Weicong
name: Rohban, Mohammad H.
name: Ishwar, Prakash
name: Saligrama, Venkatesh
Publisher: name: arXiv
Year: 2013
Subjects: subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: A new geometrically-motivated algorithm for nonnegative matrix factorization is developed and applied to the discovery of latent "topics" for text and image "document" corpora. The algorithm is based on robustly finding and clustering extreme points of empirical cross-document word-frequencies that correspond to novel "words" unique to each topic. In contrast to related approaches that are based on solving non-convex optimization problems using suboptimal approximations, locally-optimal methods, or heuristics, the new algorithm is convex, has polynomial complexity, and has competitive qualitative and quantitative performance compared to the current state-of-the-art approaches on synthetic and real-world datasets.
description: This paper was submitted to the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2013 on November 30, 2012
Organic superconductors: the need to go beyond effective 1/2-filled band models
Creators: name: Gomes, N.
name: Clay, R. T.
name: Mazumdar, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A frustrated, effective 1/2-filled band Hubbard-Heisenberg model has been proposed to describe the strongly dimerized charge-transfer solid families kappa-(ET)_2X and Z[Pd(dmit)_2]_2. In addition to unconventional superconductivity these materials also exhibit antiferromagnetism, candidate spin-liquid phases, and in the case of Z=EtMe_3P, a so-called valence-bond solid phase. We show that neither superconductivity nor the valence-bond solid phase occurs within the Hubbard-Heisenberg model, indicating that the effective 1/2-filled band model is unsuitable for these materials.
description: 5 pages, 5 figures
Strategic Analysis of Trust Models for User-Centric Networks
Creators: name: Kwiatkowska, Marta
name: Parker, David
name: Simaitis, Aistis
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: We present a strategic analysis of a trust model that has recently been proposed for promoting cooperative behaviour in user-centric networks. The mechanism for cooperation is based on a combination of reputation and virtual currency schemes in which service providers reward paying customers and punish non-paying ones by adjusting their reputation, and hence the price they pay for services. We model and analyse this system using PRISM-games, a tool that performs automated verification and strategy synthesis for stochastic multi-player games using the probabilistic alternating-time temporal logic with rewards (rPATL). We construct optimal strategies for both service users and providers, which expose potential risks of the cooperation mechanism and which we use to devise improvements that counteract these risks.
description: In Proceedings SR 2013, arXiv:1303.0071
Supplementary Figure 1 and 2 from Cell quiescence in planarian stem cells, interplay between p53 and nutritional stimuli
Creators: name: Gambino, Gaetana
name: Iacopetti, Paola
name: Guidi, Patrizia
name: Ippolito, Chiara
name: Linsalata, Stefania
name: Salvetti, Alessandra
name: Rossi, Leonardo
Publisher: name: The Royal Society
Year: 2022
Subjects: Cell Biology
Developmental Biology

description: Cell quiescence appeared early in evolution as an adaptive response to adverse conditions, i.e. nutrient depletion. In metazoans, quiescence has been enrolled in additional purposes like tissue homeostasis, which is made possible by the presence of adult stem cells (ASCs). Cell-cycle control machinery is a common hub for quiescence entrance, and evidence indicates a role for p53 in establishing the quiescent state of undamaged cells. Mechanisms responsible for waking up quiescent cells remain elusive and nutritional stimulus, as a legacy of its original role, still appears to be a player in quiescence exit. Planarians, rich in ASCs, represent a suitable system in which we characterized a quiescent population of ASCs, the dorsal midline cord (DMC) cells, exhibiting unique transcriptional features and maintained quiescent by p53 and awakened upon feeding. The function of DMC cells is puzzling and we speculate that DMC cells, despite retaining ancient properties, might represent a functional drift in which quiescence has been recruited to provide evolutionary advantages.
Investigation of quantum-dimensional structure parameters by X-ray optical, scanning tunneling and transmission electron microscopy
Creators: name: Touryanski, A. G.
name: Senkov, V. M.
name: Gizha, S. S.
name: Arapkina, L. V.
name: Chapnin, V. A.
name: Chizh, K. V.
name: Kalinushkin, V. P.
name: Storozhevykh, M. S.
name: Uvarov, O. V.
name: Yuryev, V. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Application of the two-wavelength X-ray reflectometry to exploration of Ge/Si(001) hereostructures with dense chains of stacked Ge quantum dots is presented
description: 21st Int. Symp. "Nanostructures: Physics and Technology"; Saint Petersburg, Russia, June 24-28, 2013
Ранньосередньовічне городище поблизу с.Затурці на Волині
Creators: name: Кучера, Михайло
Publisher: name: figshare
Year: 2019
Subjects: Archaeology

description: Кучера, М. П. 1971. Ранньосередньовічне городище поблизу с. Затурці на Волині. В: Шевченко, Ф. П. (відп. ред.). Середні віки на Україні, 1. Київ: Наукова думка, с. 176–187.
Quaternion Fourier Transform on Quaternion Fields and Generalizations
Creators: name: Hitzer, Eckhard
Publisher: name: arXiv
Year: 2013
Subjects: subject: Rings and Algebras (math.RA)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: Primary 42A38, Secondary 11R52

description: We treat the quaternionic Fourier transform (QFT) applied to quaternion fields and investigate QFT properties useful for applications. Different forms of the QFT lead us to different Plancherel theorems. We relate the QFT computation for quaternion fields to the QFT of real signals. We research the general linear ($GL$) transformation behavior of the QFT with matrices, Clifford geometric algebra and with examples. We finally arrive at wide-ranging non-commutative multivector FT generalizations of the QFT. Examples given are new volume-time and spacetime algebra Fourier transformations.
description: 21 pages