cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Simulating the outer layers of Procyon A: a comparison with the Sun
Creators: name: Robinson, F. J.
name: Demarque, P.
name: Guenther, D. B.
name: Kim, Y. -C.
name: Chan, K. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Compared to the Sun, the atmospheric structure and convective flow in Procyon A exhibit the following characteristics: (1) the highly superadiabatic transition layer (SAL) is located at much shallower optical depth; it is in a dynamically active region, and its outer region is located part of the time in the optically thin atmosphere; (2) the outer region of the SAL moves from an optically thin region to thick region and back again over a time of 20-30 minutes. This motion, which is driven by the granulation, takes place in a time approximately half the turnover time of the largest granules; The main reason for the radically different radiative-convective behaviour in Procyon A compared to the Sun is the role played by turbulent eddies in determining the overall flow/thermal structure. The turbulent pressure and turbulent kinetic energy can exceed 50 % of the local gas pressure (compared to about 10-20 % in the Sun). The Procyon A simulation thus reveals two distinct timescales - the autocorrelation time of the vertical velocity and the characteristic timescale of the SAL which is tied to granulation. Just below the surface the autocorrelation decay time is about 5 minutes in Procyon A, and the SAL motion timescale is 20-30 mins. When the SAL penetrates the optically thin region there are efficient radiative losses and the peak of the SAL is low. We speculate that these losses damp out the relative amplitudes in luminosity (temperature fluctuations) compared to velocity (Doppler). Although this will not affect the frequencies of the peaks in the power spectrum, it will probably lower the average amplitude of the peaks relative to the noise background.
description: 18 pages 10 figures
ХАЛҚАРО ҲУЖЖАТЛАРДА КИБЕРЖИНОЯТЧИЛИККА ҚАРШИ КУРАШ МАСАЛАЛАРИ
Creators: name: Пулатов, Фахриёр
Publisher: name: Zenodo
Year: 2024

description: Мзкур мақолада халқаро ҳужжатларда кибержиноятчиликка қарши кураш масалалари баён этилган. Шунингдек, мақолада халқаро ҳамкорликни кенгайтириш, кибержиноятчиликка қарши биргаликда ҳаракат қилиш ва уни текшириш борасида тегишли органлар фаолиятини тартибга солиш ҳамда ўзаро ҳамкорликнинг халқаро ҳуқуқий механизмларини ишлаб чиқиш билан боғлиқ масалалар ҳам таҳлил этилган.
On the Behavior of Hexane on Graphite at Near-Monolayer Densities
Creators: name: Pint, Cary L.
name: Roth, M. W.
name: Wexler, Carlos
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present the results of molecular dynamics (MD) studies of hexane physisorbed onto graphite for eight coverages in the range $0.875 \le ρ\le 1.05$ (in units of monolayers). At low temperatures the adsorbate molecules form a uniaxially incommensurate herringbone (UI-HB) solid. At high coverages the solid consists of adsorbate molecules that are primarily rolled on their side perpen-dicular to the surface of the substrate. As the coverage is decreased, the amount of molecular rolling diminishes until $ρ$ = 0.933 where it disappears (molecules become primarily parallel to the surface). If the density is decreased enough, vacancies appear. As the temperature is increased we observe a three-phase regime for $ρ> 0.933$ (with an orientationally ordered nematic mesophase), for lower coverages the system melts directly to the disordered (and isotropic) liquid phase. The solid-nematic transition temperature is very sensitive to coverage whereas the melting temperature is quite insensitive to it, except for at low coverages where increased in-plane space and ultimately vacancies soften the solid phase and lower the melting temperature. Our results signal the importance of molecular rolling and tilting (which result from an the competition between molecule-molecule and molecule-substrate interactions) for the formation of the intermediate phase, while the insensitivity of the system's melting temperature to changing density is understood in terms of in-plane space occupation through rolling. Comparisons and contrasts with experimental results are discussed.
Calculation of an enhanced A1g symmetry mode induced by Higgs oscillations in the Raman spectrum of high-temperature cuprate superconductors
Creators: name: Puviani, M.
name: Baum, A.
name: Ono, S.
name: Ando, Y.
name: Hackl, R.
name: Manske, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In superconductors the Anderson-Higgs mechanism allows for the existence of a collective amplitude (Higgs) mode which can couple to eV-light mainly in a non-linear Raman-like process. The experimental non-equilibrium results on isotropic superconductors have been explained going beyond the BCS theory including the Higgs mode. Furthermore, in anisotropic d-wave superconductors strong interaction effects with other modes are expected. Here we calculate the Raman contribution of the Higgs mode from a new perspective, including many-body Higgs oscillations effects and their consequences in conventional, spontaneous Raman spectroscopy. Our results suggest a significant contribution to the intensity of the A1g symmetry Raman spectrum in d-wave superconductors. In order to test our theory, we predict the presence of measurable characteristic oscillations in THz quench-optical probe time-dependent reflectivity experiments.
description: 25 pages, 11 figures. Accepted for publication in Physical Review Letters
Simulated annealing for generalized Skyrme models
Creators: name: Longpre, J. -P.
name: Marleau, L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We use a simulated annealing algorithm to find the static field configuration with the lowest energy in a given sector of topological charge for generalized SU(2) Skyrme models. These numerical results suggest that the following conjecture may hold: the symmetries of the soliton solutions of extended Skyrme models are the same as for the Skyrme model. Indeed, this is verified for two effective Lagrangians with terms of order six and order eight in derivatives of the pion fields respectively for topological charges B=1 up to B=4. We also evaluate the energy of these multi-skyrmions using the rational maps ansatz. A comparison with the exact numerical results shows that the reliability of this approximation for extended Skyrme models is almost as good as for the pure Skyrme model. Some details regarding the implementation of the simulated annealing algorithm in one and three spatial dimensions are provided.
description: 14 pages, 6 figures, added 2 references
HETE-2 Localization and Observations of the Gamma-Ray Burst GRB 020813
Creators: name: Sato, R.
name: Team, the HETE Science
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A bright, long gamma-ray burst (GRB) was detected and localized by the instruments on board the High Energy Transient Explorer 2 satellite (HETE-2) at 02:44:19.17 UTC (9859.17 s UT) on 2002 August 13. The location was reported to the GRB Coordinates Network (GCN) about 4 min after the burst. In the prompt emission, the burst had a duration of approximately 125 s, and more than four peaks. We analyzed the time-resolved 2-400 keV energy spectra of the prompt emission of GRB 020813 using the Wide Field X-Ray Monitor (WXM) and the French Gamma Telescope (FREGATE) in detail. We found that the early part of the burst (17-52 s after the burst trigger) shows a depletion of low-energy photons below about 50 keV. It is difficult to explain the depletion with by either synchrotron self-absorption or Comptonization. One possibility is that the low-energy depletion may be understood as a mixture of ``jitter'' radiation the usual synchrotron radiation component.
description: 15 pages, 7 figures, accepted by Publ.Astron.Soc.Jap
Bistable Profile Illumination in Pulsars B0919+06 & B1859+07
Creators: name: Rankin, Joanna M.
name: Rodriguez, Cameron
name: Wright, Geoffrey A. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A new single pulse behaviour has been identified in two pulsars, B0919+06 and B1859+07. Normally both starts emit bright subpulses in a region near the trailing edge of heir profile. However, occasionally these stars exhibit "events" wherein the emission longitude gradually decreases by about their profile width, remains in this position for typically tens of pulses and then gradually returns over a few pulses to the usual longitude. The effect bears some resemblance to a profile "mode change", but here the effect is gradual and episodic. When the separated profiles of the normal and "event" emission, they reveal a broad and complex profile structure in each pulsar - but one which can probably be understood correctly in terms of a single conical beam. Possibly the effect entails an extreme example of "absorption"-induced profile asymmetry, as suspected in other pulsars. Alternatively, shifting sources of illumination within the pulsar beam may be responsible.
description: 9 pages, 4 figures, submitted to MNRAS
Gravitational Wave Astrometry for Rapidly Rotating Neutron Stars and Estimation of Their Distances
Creators: name: Seto, Naoki
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss an astrometric timing effect on data analysis of continuous gravitational waves from rapidly rotating isolated neutron stars. Special attention is directed to the possibility of determining their distances by measuring the curvature of the wave fronts. We predict that if continuous gravitational waves from an unknown neutron star with a stable rotation are detected around 1kHz within 1/3yr by initial LIGO detectors and the ellipticity parameter epsilon is smaller than 10^{-6}, the distance r to the source can be estimated with relative error Δr/r of \sim 10% by using the broad band configuration of advanced LIGO detectors over 3 years. By combining the observed amplitude of the waves with the estimated distance, information on the parameter $ε$ can be obtained purely through gravitational wave measurements.
description: 6 pages, 1 figure, to appear in PRD
Filopaludina Habe 1964
Creators: name: Zhang, Le-Jia
name: von Rintelen, Thomas
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Architaenioglossa
Viviparidae
Filopaludina

description: Filopaludina Habe, 1964
Examined species: Filopaludina martensi (Frauenfeld, 1864)
(Figs 4M, 5M, 7M); Filopaludina bengalensis (Lamarck, 1822) (Figs 4N, 5N, 7N); Filopaludina gigantea (von dem Busch, 1843) (Figs 4O, 5O, 7O); Filopaludina luzonica (Kobelt, 1909) (Figs 4L, 5L, 7L).
Remarks: The opercular characters of Filopaludina are broadly similar to those of Idiopoma. Notably, both show an inner opercular region almost completely covered by a sandpaper-like layer. However, in Filopaludina, this layer and the inner opercular region are maroon coloured, whereas in Idiopoma they are brownish yellow. In addition, the enamel region of Filopaludina lacks the fine grid-like pattern found in the enamel region of Idiopoma.
The operculum of F. martensi differs from that of the other examined species of Filopaludina: it has a relatively small inner opercular region that is almost completely covered by a sandpaper-like layer, with many radial veins; is almost as high as it is wide; and has a notably convex outer margin.
The opercula of F. bengalensis and F. gigantea are similar, but the former is much smaller (as is the shell). Filopaludina gigantea has been considered as a large variety of F. bengalensis. The specimen of F. gigantea examined partly lacks the sandpaper-like layer and instead exhibits a smooth maroon nuclear region that, if confirmed as being present in more specimens, might be a size-independent character for distinguishing the two species.
The operculum of F. luzonica stands out because of the conspicuous difference in colour between the marginal and enamel regions. This character is absent in the other Filopaludina species examined but is present in other genera, such as Idiopoma and Taia (Table 2).
description: Published as part of Zhang, Le-Jia & von Rintelen, Thomas, 2021, The neglected operculum: a revision of the opercular characters in river snails (Caenogastropoda: Viviparidae), pp. 1-14 in Journal of Molluscan Studies 87 (2) on pages 11-12, DOI: 10.1093/mollus/eyab008, http://zenodo.org/record/15098489
Deliverable 5.3 Guidelines/framework for designing and assessing applications towards impact on FNS
Creators: name: Boekhoudt, Lynn
Publisher: name: Zenodo
Year: 2020
Subjects: FIT4FOOD2030
Dissemination
Responsible Research and Innovation
Food and Nutrition Security
FOOD2030EU
Food system transformation
RRI guidelines for research funding and programming authorities
Tools for transformation
Horizon Europe Programme

description: Task 5.3 aimed to “deliver RRI guidelines that can be used by research funding and programming authorities to design calls and to assess research applications and projects with respect to their (potential) impact on a sustainable and resilient food system”. In order to undertake this work, the task leaders prepared a questionnaire for funders on the use of RRI practices by their organisation in order to assess current practices. The questionnaire was sent to the Governing/Management Boards of the JPIs HDHL, Oceans and FACCE. Seventeen responses were received and these indicated a patchy application of RRI practices by funders. Although some funders indicate that RRI is systematically considered, this seems to be exceptional. In general, one or two aspects are considered but not the overall approach.
Spherically symmetric, static spacetimes in a tensor-vector-scalar theory
Creators: name: Giannios, Dimitrios
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recently, a relativistic gravitation theory has been proposed [J. D. Bekenstein, Phys. Rev. D {\bf 70}, 083509 (2004)] that gives the Modified Newtonian Dynamics (or MOND) in the weak acceleration regime. The theory is based on three dynamic gravitational fields and succeeds in explaining a large part of extragalactic and gravitational lensing phenomenology without invoking dark matter. In this work we consider the strong gravity regime of TeVeS. We study spherically symmetric, static and vacuum spacetimes relevant for a non-rotating black hole or the exterior of a star. Two branches of solutions are identified: in the first the vector field is aligned with the time direction while in the second the vector field has a non-vanishing radial component. We show that in the first branch of solutions the βand γPPN coefficients in TeVeS are identical to these of general relativity (GR) while in the second the βPPN coefficient differs from unity violating observational determinations of it (for the choice of the free function $F$ of the theory made in Bekenstein's paper). For the first branch of solutions, we derive analytic expressions for the physical metric and discuss their implications. Applying these solutions to the case of black holes, it is shown that they violate causality (since they allow for superluminal propagation of metric, vector and scalar waves) in the vicinity of the event horizon and/or that they are characterized by negative energy density carried by the fields.
description: 12 pages, accepted for publication in Phys. Rev. D
Adiabatic theorem revisited: the unexpectedly good performance of adiabatic passage
Creators: name: Benseny, Albert
name: Mølmer, Klaus
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Adiabatic passage employs a slowly varying time-dependent Hamiltonian to control the evolution of a quantum system along the Hamiltonian eigenstates. For processes of finite duration, the exact time evolving state may deviate from the adiabatic eigenstate at intermediate times, but in numerous applications it is observed that this deviation reaches a maximum and then decreases significantly towards the end of the process. We provide a straightforward theoretical explanation for this welcome but often unappreciated fact. Our analysis emphasizes a separate adiabaticity criterion for high fidelity state-to-state transfer and it points to new effective shortcut strategies for near adiabatic dynamics.
description: 7 pages, 4 figures
Sowing the seeds of transformation in the Colombian Andes: from huerta (home garden) to heart
Creators: name: Mahecha Groot, Ana María
Publisher: name: No Publisher Supplied
Year: 2021

description: The concept of deliberate transformation draws attention to actions aimed at addressing the drivers and vulnerabilities of climate change, while supporting equitable pathways towards sustainability. While the need for deliberate transformation is widely accepted, many questions remain about the conditions that foster and enable individual and collective engagement in the process. This study explores how deliberate transformation occurs through the adoption of agroecological practices by small-scale farmers, and the solidarity economies that emerge within Alternative Food Networks (AFNs) in the Bogotá-Region of Colombia (Colombian Andes). Relying on ethnographic methods, the study reveals how deliberate transformation manifests through everyday practices and interactions between farmers and their agroecological huertas (home gardens), as well as in the relationships and interaction spaces that emerge within Alternative Food Networks. The findings suggest that the huerta is “ground zero” for emerging agroecological food initiatives among small farmers in the Colombian Andes: it is the place where new openings, new learning, and new interactions begin for farmers, and it is also fertile ground for memories, re-connection, re-engagement with familial and ancestral cultivation practices. Above all, the huerta allows farmers to see their lives and actions from different perspectives, providing the key ‘spark’ for engagement with transformation. By exploring the origin stories of numerous huertas and of the actors behind them, this study illuminates the motivations, emotions, and practices that are inspiring individual and collective engagement with transformation toward a more dignified co-existence and improved life for Andean farmers. Also, the results of the study show, the potential of AFNs to lead the profound political and social changes that local food systems need. This study demonstrates that everyday spaces of production, distribution and consumption, can reinvigorate micro-politics, as communities of affinity woven networks. As suggested by Silvia Rivera Cusicanqui (2018), micro-politics is below the radar of politics and works on small collectives and their actions, to allow spaces of freedom (or well-being in the case this study) to flourish. Rivera Cusicanqui talks about the importance of re-politicizing everyday life, whether in the kitchen or in the huerta. The latter, to generate spaces where the norms and values of coexistence, redistribution, and collective and individual action are settled (Rivera Cusicanqui, 2018). While there will always be the question of scale, it is nonetheless important to value the potential of “the small” and the plural, which enable actions and solutions that can collectively have a planetary dimension. As such, this study shows possible expressions of transformation towards sustainability from the daily production of agroecological food in the Bogotá-Region.
Optimal probes for continuous variable quantum illumination
Creators: name: Bradshaw, Mark
name: Conlon, Lorcan O.
name: Tserkis, Spyros
name: Gu, Mile
name: Lam, Ping Koy
name: Assad, Syed M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum illumination is the task of determining the presence of an object in a noisy environment. We determine the optimal continuous variable states for quantum illumination in the limit of zero object reflectivity. We prove that the optimal single mode state is a coherent state, while the optimal two mode state is the two-mode squeezed-vacuum state. We find that these probes are not optimal at non-zero reflectivity, but remain near optimal. This demonstrates the viability of the continuous variable platform for an experimentally accessible, near optimal quantum illumination implementation.
description: 7 pages, 3 figures,
Vorgrimler, Herbert (hsrg.): Bilanz der Theologie im 20. Jahrhundert
Creators: name: Kg.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 19 Nr. 2 (1970): Ökumenische Rundschau, Band 19, Heft 2
Metastability in the Hamiltonian Mean Field model and Kuramoto model
Creators: name: Pluchino, Alessandro
name: Rapisarda, Andrea
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We briefly discuss the state of the art on the anomalous dynamics of the Hamiltonian Mean Field model. We stress the important role of the initial conditions for understanding the microscopic nature of the intriguing metastable quasi stationary states observed in the model and the connections to Tsallis statistics and glassy dynamics. We also present new results on the existence of metastable states in the Kuramoto model and discuss the similarities with those found in the HMF model. The existence of metastability seem to be quite a common phenomenon in fully coupled systems, whose origin could be also interpreted as a dynamical mechanism preventing or hindering sinchronization.
description: 5 pages 3 figures. Talk presented at the international conference NEXT Sigma Phi 05, 13-18 August 2005 Kolymbari, Crete. To be published in the volume of the proceedings
Radiative Transitions in Charmonium from Lattice QCD
Creators: name: Dudek, Jozef J.
name: Edwards, Robert G.
name: Richards, David G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Radiative transitions between charmonium states offer an insight into the internal structure of heavy-quark bound states within QCD. We compute, for the first time within lattice QCD, the transition form-factors of various multipolarities between the lightest few charmonium states. In addition, we compute the experimentally unobservable, but physically interesting vector form-factors of the $η_c, J/ψ$ and $χ_{c0}$. To this end we apply an ambitious combination of lattice techniques, computing three-point functions with heavy domain wall fermions on an anisotropic lattice within the quenched approximation. With an anisotropy $ξ=3$ at $a_s \sim 0.1 \mathrm{fm}$ we find a reasonable gross spectrum and a hyperfine splitting $\sim 90 \mathrm{MeV}$, which compares favourably with other improved actions. In general, after extrapolation of lattice data at non-zero $Q^2$ to the photopoint, our results agree within errors with all well measured experimental values. Furthermore, results are compared with the expectations of simple quark models where we find that many features are in agreement; beyond this we propose the possibility of constraining such models using our extracted values of physically unobservable quantities such as the $J/ψ$ quadrupole moment. We conclude that our methods are successful and propose to apply them to the problem of radiative transitions involving hybrid mesons, with the eventual goal of predicting hybrid meson photoproduction rates at the GlueX experiment.
description: modified version as published
Toric invariant theory for maximum likelihood estimation in log-linear models
Creators: name: Améndola, Carlos
name: Kohn, Kathlén
name: Reichenbach, Philipp
name: Seigal, Anna
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistics Theory (math.ST)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14L24, 14P05, 20G45, 62F10, 62H22, 62R01

description: We establish connections between invariant theory and maximum likelihood estimation for discrete statistical models. We show that norm minimization over a torus orbit is equivalent to maximum likelihood estimation in log-linear models. We use notions of stability under a torus action to characterize the existence of the maximum likelihood estimate, and discuss connections to scaling algorithms.
description: This is a companion paper to arXiv:2003.13662. v2: referee comments worked in, added appendices A and B
Variational Quantum Algorithms
Creators: name: Cerezo, M.
name: Arrasmith, Andrew
name: Babbush, Ryan
name: Benjamin, Simon C.
name: Endo, Suguru
name: Fujii, Keisuke
name: McClean, Jarrod R.
name: Mitarai, Kosuke
name: Yuan, Xiao
name: Cincio, Lukasz
name: Coles, Patrick J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Applications such as simulating complicated quantum systems or solving large-scale linear algebra problems are very challenging for classical computers due to the extremely high computational cost. Quantum computers promise a solution, although fault-tolerant quantum computers will likely not be available in the near future. Current quantum devices have serious constraints, including limited numbers of qubits and noise processes that limit circuit depth. Variational Quantum Algorithms (VQAs), which use a classical optimizer to train a parametrized quantum circuit, have emerged as a leading strategy to address these constraints. VQAs have now been proposed for essentially all applications that researchers have envisioned for quantum computers, and they appear to the best hope for obtaining quantum advantage. Nevertheless, challenges remain including the trainability, accuracy, and efficiency of VQAs. Here we overview the field of VQAs, discuss strategies to overcome their challenges, and highlight the exciting prospects for using them to obtain quantum advantage.
description: Review Article. 33 pages, 7 figures. Updated to published version
1 Brief an [Hans Georg] Nägeli
Brief an Nägeli ...
Creators: name: Dreist, Karl August Gottlieb
Publisher: name: [s.n.]
Year: 1809

description: von C[arl] A[ugust Gottlieb] Dreist
description: Abschrift dieses Briefs in Ms Car. XV 200.145b, dort auf Februar datiert (Abschreibfehler)
СОҒЛИҚҚА ҚАРШИ ЖИНОЯТЛАРНИНГ ОБЪЕКТИ ВА УНИНГ  ЎЗИГА ХОС ЖИҲАТЛАРИ
Creators: name: Тўйчиев, Акмал
Publisher: name: Zenodo
Year: 2024

description: Мазкур мақолада  соғлиққа қарши жиноятларнинг объекти ва унинг  ўзига хос жиҳатларига доир масалала таҳлил этилган. Шунингдек, мақолада соғлиққа қарши жиноятларнинг объекти ва предмети билан боғлиқ масалаларга доир олимларнинг фикирлари ўрганилган.
Weighted energy estimates for the incompressible Navier-Stokes equations and applications to axisymmetric solutions without swirl
Creators: name: Fernández-Dalgo, Pedro Gabriel
name: Lemarié-Rieusset, Pierre Gilles
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider a family of weights which permit to generalize the Leray procedure to obtain weak suitable solutions of the 3D incom-pressible Navier-Stokes equations with initial data in weighted L 2 spaces. Our principal result concerns the existence of regular global solutions when the initial velocity is an axisymmetric vector field without swirl such that both the initial velocity and its vorticity belong to L 2 ((1 + r 2) -- $γ$ 2 dx), with r = x 2 1 + x 2 2 and $γ$ $\in$ (0, 2).
Untersuchungen zu pathophysiologischen Merkmalen des Morbus Niemann-Pick Typ C1
Creators: name: Frech, Moritz Johannes
Publisher: name: Universität Rostock
Year: 2019
Subjects: subject: 570 Life science
subject: 610 Medical sciences Medicine

description: Morbus Niemann-Pick Typ C1 (NPC1) ist eine seltene autosomal rezessive, lysosomale Lipidose, die sich durch eine Akkumulation von Cholesterol in den Lysosomen auszeichnet. Ziel der Arbeiten war es, ein humanes neuronales in vitro Zellmodellsystem für NPC1 zu entwickeln. Hierzu wurden NPC1 patientenspezifische Fibroblasten in patientenspezifische IPS-Zellen reprogrammiert. Diese wurden in Neurone und Gliazellen differenziert und hinsichtlich der Ausprägung von pathophysiologischen Merkmalen, als Beleg für die Verwendbarkeit der Zellen als NPC1 in vitro Modellsystem, untersucht.
The ABC of Deutsch-Hayden Descriptors
Creators: name: Bédard, Charles Alexandre
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It has been more than 20 years since Deutsch and Hayden proved the locality of quantum theory, using the Heisenberg picture of quantum computational networks. Of course, locality holds even in the face of entanglement and Bell's theorem. Today, most researchers in quantum foundations are still convinced not only that a local description of quantum systems has not yet been provided, but that it cannot exist. The main goal of this paper is to address this misconception by re-explaining the descriptor formalism in a hopefully accessible and self-contained way. It is a step-by-step guide to how and why descriptors work. Finally, superdense coding is revisited in the light of descriptors.
description: 18 pages. arXiv admin note: substantial text overlap with arXiv:2001.09646. Response to arXiv admin note: Yes, arXiv:2001.09646 is splitting. I will soon update it to remove the overlap with this paper
Hybrid Inflation, Dark Energy And Dark Matter
Creators: name: Shafi, Qaisar
name: Sil, Arunansu
name: Ng, Siew-Phang
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It has been suggested that the dark energy density ρ_v ~ 10^{-12} eV^4 in the universe is associated with a metastable (false) vacuum, while the true vacuum has a vanishing cosmological constant. By including supergravity corrections we show how this is naturally realized in realistic supersymmetric hybrid inflation models. With a fundamental supersymmetry breaking scale ~ TeV, the LSP is not a suitable candidate for cold dark matter. We consider axion physics to overcome this and simultaneously provide a resolution of the MSSM μproblem.
description: 11 pages, no figures
Deliverable 5.4 INTERNATIONAL COOPERATION
Creators: name: Wenink, Jolien
name: Bos, Veerle
name: Brierley, Chrissie
Publisher: name: Zenodo
Year: 2020
Subjects: FIT4FOOD2030
Dissemination
Responsible Research and Innovation
Food and Nutrition Security
FOOD2030EU
Food system transformation
Tools for transformation
Horizon Europe Programme
Framework
International Cooperation

description: The purpose of this document is to provide background information, a framework and recommendations to shape the international dimension of Food 2030. Food 2030 is the EU research and innovation policy response to international policy developments including the Sustainable Development Goals (United Nations, 2015) and COP21commitmens (United Nations, 2015).
Dynamics of a Dust Crystal with Two Different Size Dust Species
Creators: name: Matthews, L. S.
name: Qiao, K.
name: Hyde, T. W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A self-consistent three-dimensional model for a complex (dusty) plasma is used to study the effects of multiple-sized dust grains in a dust crystal. In addition to the interparticle forces, which interact through a Yukawa potential, the model includes the effects of gravity, the variation of the sheath potential above the powered electrode, and a radial confining potential. Simulations studied various ratios of a mix of 6.5- and 8.9-micron monodisperse particles and compared their correlation functions, electric potential energy of the crystal formations, and the dispersion relations for in-plane and out-of-plane dust lattice wave (DLW) modes for two different sheath thicknesses. In the 7 mm sheath, the particles formed two layers in the vertical direction by size, and acted as a two-layer crystal with weak correlation between the layers. In the 3 mm sheath, the particles formed an essentially monolayer crystal; however the crystal dynamics showed some characteristics of a bilayer crystal.
Fault-tolerant qubit from a constant number of components
Creators: name: Wan, Kianna
name: Choi, Soonwon
name: Kim, Isaac H.
name: Shutty, Noah
name: Hayden, Patrick
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: With gate error rates in multiple technologies now below the threshold required for fault-tolerant quantum computation, the major remaining obstacle to useful quantum computation is scaling, a challenge greatly amplified by the huge overhead imposed by quantum error correction itself. We propose a fault-tolerant quantum computing scheme that can nonetheless be assembled from a small number of experimental components, potentially dramatically reducing the engineering challenges associated with building a large-scale fault-tolerant quantum computer. Our scheme has a threshold of 0.39% for depolarising noise, assuming that memory errors are negligible. In the presence of memory errors, the logical error rate decays exponentially with $\sqrt{T/τ}$, where $T$ is the memory coherence time and $τ$ is the timescale for elementary gates. Our approach is based on a novel procedure for fault-tolerantly preparing three-dimensional cluster states using a single actively controlled qubit and a pair of delay lines. Although a circuit-level error may propagate to a high-weight error, the effect of this error on the prepared state is always equivalent to that of a constant-weight error. We describe how the requisite gates can be implemented using existing technologies in quantum photonic and phononic systems. With continued improvements in only a few components, we expect these systems to be promising candidates for demonstrating fault-tolerant quantum computation with a comparatively modest experimental effort.
description: 27 pages, 13 figures; journal version
Moller Energy-Momentum Prescription for a Locally Rotationally Symmetric Space-Time
Creators: name: Aydogdu, Oktay
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper has inappropriate amounts of overlap with the following papers also written by the authors or their collaborators: gr-qc/0608050, gr-qc/0509047, gr-qc/0505078, gr-qc/0603108, gr-qc/0512080, gr-qc/0511030, gr-qc/0606022, gr-qc/0603027, gr-qc/0603063, gr-qc/0607116, and others.
description: This submission has been withdrawn by arXiv administrators due to inappropriate text reuse from external sources
Making Fetal Persons: Fetal homicide, ultrasound and the normative significance of birth
Creators: name: Mills, Catherine
Publisher: name: Monash University
Year: 2020
Subjects: subject: 220101 Bioethics (human and animal)
subject: FOS: Philosophy, ethics and religion
subject: 220306 Feminist Theory
subject: Philosophy
subject: 220317 Poststructuralism

description: The task of this paper is to examine the integration of obstetric ultrasound images in moral and legal debates on the status of the human fetus, particularly through the framework of the constitution of fetal personhood. I focus on the questions about the moral and legal significance of prenatal life and birth as construed through recent shifts in law toward so-called ‘fetal homicide’ laws. Throughout, I argue that the moral status of the fetus has a performative dimension, realised in the operation of obstetric ultrasound and the interpolation of the fetus as a person that it effects. As I show, in regard to the constitution of the fetus as person, obstetric ultrasound operates as a technological means of mediation between the human body and the concept of the person.
On the Number of Solutions to Asymptotic Plateau Problem
Creators: name: Coskunuzer, Baris
Publisher: name: arXiv
Year: 2005
Subjects: subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 53A10, 49Q05

description: We give a simple topological argument to show that the number of solutions of the asymptotic Plateau problem in hyperbolic space is generically unique. In particular, we show that the space of codimension-1 closed submanifolds of sphere at infinity, which bounds a unique absolutely area minimizing hypersurface in hyperbolic n-space, is dense in the space of all codimension-1 closed submanifolds at infinity. In dimension 3, we also prove that the set of uniqueness curves in asymptotic sphere for area minimizing planes is generic in the set of Jordan curves at infinity. We also give some nonuniqueness results for dimension 3, too.
description: 17 pages, 2 figures. V2: added a new section on nonuniqueness results
Handling of large and heavy objects using a single mobile manipulator in combination with a roller board
Creators: name: Recker, Tobias
name: Heilemann, Florian
name: Raatz, Annika
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2021
Subjects: subject: Null space motion
subject: Object handling
subject: Tractor-trailer wheeled robot
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: This paper presents a method for autonomous loading, transportation, and unloading of large objects using a nonholonomic mobile manipulator. Here, the size of the transported object is considerably larger than the size of the mobile platform, which is made possible through the use of a roller board. In this way, the mobile manipulator can handle objects that exceed the manipulator's payload. The robot can load and unload the object onto its platform using the differential kinematics of the system for a null space motion to maintain the object's position in space. In order to localise the object, we apply 3D-perception using a depth-camera. While transporting the object to its destination, the robot is considered a tractor-trailer-wheeled system and can navigate using SLAM. Kinematic modelling and practical evaluation prove that the system can potentially take over arduous transportation tasks.
Computing Arlequin coupling coefficient for concurrent FE-MD approaches
Creators: name: Shan, Wenzhe
name: Nackenhorst, Udo
Publisher: name: [Erscheinungsort nicht ermittelbar] : Arxiv.org
Year: 2021
Subjects: subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: Arlequin coupling coefficient is essential for concurrent FE-MD models with overlapping domains, but the calculation of its value is quite difficult when the geometry of the coupling region is complicated. In this work, we introduce a general procedure for the preprocessing of a concurrent FE-MD model, given that the mesh and atoms have already been created. The procedure is independent of the geometry of the coupling region and can be used for both 2D and 3D problems. The procedure includes steps of determining the relative positions of atoms inside the FE elements in the coupling region, as well as computing the Arlequin coupling coefficient for an arbitrary point inside the coupling region or on its boundary. Two approaches are provided for determining the coefficient: the direct approach and the temperature approach.
The targum (1952:May 2 - 1952:May 13)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1952

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
1-Dimensional polynomial neural networks for audio signal related problems
Creators: name: Abdallah, Habib Ben
name: Henry, Christopher J.
name: Ramanna, Sheela
Publisher: name: arXiv
Year: 2020
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In addition to being extremely non-linear, modern problems require millions if not billions of parameters to solve or at least to get a good approximation of the solution, and neural networks are known to assimilate that complexity by deepening and widening their topology in order to increase the level of non-linearity needed for a better approximation. However, compact topologies are always preferred to deeper ones as they offer the advantage of using less computational units and less parameters. This compacity comes at the price of reduced non-linearity and thus, of limited solution search space. We propose the 1-Dimensional Polynomial Neural Network (1DPNN) model that uses automatic polynomial kernel estimation for 1-Dimensional Convolutional Neural Networks (1DCNNs) and that introduces a high degree of non-linearity from the first layer which can compensate the need for deep and/or wide topologies. We show that this non-linearity enables the model to yield better results with less computational and spatial complexity than a regular 1DCNN on various classification and regression problems related to audio signals, even though it introduces more computational and spatial complexity on a neuronal level. The experiments were conducted on three publicly available datasets and demonstrate that, on the problems that were tackled, the proposed model can extract more relevant information from the data than a 1DCNN in less time and with less memory.
Constraints from Galaxy-AGN Clustering on the Correlation between Galaxy and Black Hole Mass at Redshifts 2
Creators: name: Adelberger, K. L.
name: Steidel, C. C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use the clustering of galaxies around distant active-galactic nuclei to derive an estimate of the relationship between galaxy and black hole mass that obtained during the ancient quasar epoch, at redshifts 2
description: Accepted for publication in ApJL
Space-time crystalline order of a high-critical-temperature superconductor with intrinsic Josephson junctions
Creators: name: Kleiner, Reinhold
name: Zhou, Xianjing
name: Dorsch, Eric
name: Zhang, Xufeng
name: Koelle, Dieter
name: Jin, Dafei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically demonstrate that the high-critical-temperature superconductor Bi$_2$Sr$_2$CaCu$_2$O$_{8+x}$ (BSCCO) is a natural candidate for the recently envisioned classical space-time crystal. BSCCO intrinsically forms a stack of Josephson junctions. Under a periodic parametric modulation of the Josephson critical current density, the Josephson currents develop coupled space-time crystalline order, breaking the continuous translational symmetry in both space and time. The modulation frequency and amplitude span a (nonequilibrium) phase diagram for a so-defined spatiotemporal order parameter, which displays rigid pattern formation within a particular region of the phase diagram. Based on our calculations using representative material properties, we propose a laser-modulation experiment to realize the predicted space-time crystalline behavior. Our findings bring new insight into the nature of space-time crystals and, more generally, into nonequilibrium driven condensed matter systems.
description: 12 pages, 7 figures
The Electroweak Phase Transition on Orbifolds with Gauge-Higgs Unification
Creators: name: Panico, Giuliano
name: Serone, Marco
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The dynamics of five dimensional Wilson line phases at finite temperature is studied in the one-loop approximation. We show that at temperatures of order T \sim 1/L, where L is the length of the compact space, the gauge symmetry is always restored and the electroweak phase transition appears to be of first order. Particular attention is devoted to the study of a recently proposed five dimensional orbifold model (on S1/Z2) where the Wilson line phase is identified with the Higgs field (gauge-Higgs unification). Interestingly enough, an estimate of the leading higher-loop ``daisy'' (or ``ring'') diagram contributions to the effective potential in a simple five dimensional model, seems to suggest that the electroweak phase transition can be studied in perturbation theory even for Higgs masses above the current experimental limit of 114 GeV. The transition is still of first order for such values of the Higgs mass. If large localized gauge kinetic terms are present, the transition might be strong enough to give baryogenesis at the electroweak transition.
description: 35 pages, 34 figures; v2: discussion on higher loop contributions improved, two figures added, minor corrections
Empfehlungen der Weltkonferenz über Ökumenische Hilfe für Entwicklungsprojekte
Creators: name: Linnenbrink, Günter
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 19 Nr. 2 (1970): Ökumenische Rundschau, Band 19, Heft 2