cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optical and electrical feedback cooling of a silica nanoparticle levitated in a Paul trap
Creators: name: Dania, Lorenzo
name: Bykov, Dmitry S.
name: Knoll, Matthias
name: Mestres, Pau
name: Northup, Tracy E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: All three motional modes of a charged dielectric nanoparticle in a Paul trap are cooled by direct feedback to temperatures of a few mK. We test two methods, one based on electrical forces and the other on optical forces; for both methods, we find similar cooling efficiencies. Cooling is characterized for both feedback forces as a function of feedback parameters, background pressure, and the particle's position.
On the q-analogue of the hydrogen atom
Creators: name: Kibler, Maurice Robert
name: Negadi, Tidjani
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The discrete spectrum of a q-analogue of the hydrogen atom is obtained from a deformation of the Pauli equations. As an alternative, the spectrum is derived from a deformation of the four-dimensional oscillator arising in the application of the Kustaanheimo-Stiefel transformation to the hydrogen atom. A model of the 2s-2p Dirac shift is proposed in the context of q-deformations.
The On-Orbit Performance of the Galaxy Evolution Explorer
Creators: name: Morrissey, P.
name: Schiminovich, D.
name: Barlow, T. A.
name: Martin, D. C.
name: Blakkolb, B.
name: Conrow, T.
name: Cooke, B.
name: Erickson, K.
name: Fanson, J.
name: Friedman, P. G.
name: Grange, R.
name: Jelinsky, P. N.
name: Lee, S. C.
name: Liu, D.
name: Mazer, A.
name: McLean, R.
name: Milliard, B.
name: Randall, D.
name: Schmitigal, W.
name: Sen, A.
name: Siegmund, O. H. W.
name: Surber, F.
name: Vaughan, A.
name: Viton, M.
name: Welsh, B. Y.
name: Bianchi, L.
name: Byun, Y. -I.
name: Donas, J.
name: Forster, K.
name: Heckman, T. M.
name: Lee, Y-W
name: Madore, B. F.
name: Malina, R. F.
name: Neff, S. G.
name: Rich, R. M.
name: Small, T.
name: Szalay, A.
name: Wyder, T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the first year on-orbit performance results for the Galaxy Evolution Explorer (GALEX), a NASA Small Explorer that is performing a survey of the sky in two ultraviolet bands. The instrument comprises a 50 cm diameter modified Ritchey-Chretien telescope with a 1.25 degree field of view, selectable imaging and objective grism spectroscopic modes, and an innovative optical system with a thin-film multilayer dichroic beam splitter that enables simultaneous imaging by a pair of photon counting, microchannel plate, delay line readout detectors. Initial measurements demonstrate that GALEX is performing well, meeting its requirements for resolution, efficiency, astrometry, bandpass definition and survey sensitivity.
description: This paper will be published as part of the Galaxy Evolution Explorer (GALEX) Astrophysical Journal Letters Special Issue
Overhead for simulating a non-local channel with local channels by quasiprobability sampling
Creators: name: Mitarai, Kosuke
name: Fujii, Keisuke
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: As the hardware technology for quantum computing advances, its possible applications are actively searched and developed. However, such applications still suffer from the noise on quantum devices, in particular when using two-qubit gates whose fidelity is relatively low. One way to overcome this difficulty is to substitute such non-local operations by local ones. Such substitution can be performed by decomposing a non-local channel into a linear combination of local channels and simulating the original channel with a quasiprobability-based method. In this work, we first define a quantity that we call channel robustness of non-locality, which quantifies the cost for the decomposition. While this quantity is challenging to calculate for a general non-local channel, we give an upper bound for a general two-qubit unitary channel by providing an explicit decomposition. The decomposition is obtained by generalizing our previous work whose application has been restricted to a certain form of two-qubit unitary. This work develops a framework for a resource reduction suitable for first-generation quantum devices.
description: 7 pages, 2 figures
Latent Space-Based Likelihood Estimation Using a Single Observation for Bayesian Updating of a Nonlinear Hysteretic Model
Creators: name: Lee, Sangwon
name: Yaoyama, Taro
name: Matsumoto, Yuma
name: Hida, Takenori
name: Itoi, Tatsuya
Publisher: name: arXiv
Year: 2024
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: This study presents a novel approach to quantifying uncertainties in Bayesian model updating, which is effective in sparse or single observations. Conventional uncertainty quantification metrics such as the Euclidean and Bhattacharyya distance-based metrics are potential in scenarios with ample observations. However, their validation is limited in situations with insufficient data, particularly for nonlinear responses like post-yield behavior. Our method addresses this challenge by using the latent space of a Variational Auto-encoder (VAE), a generative model that enables nonparametric likelihood evaluation. This approach is valuable in updating model parameters based on nonlinear seismic responses of structure, wherein data scarcity is a common challenge. Our numerical experiments confirm the ability of the proposed method to accurately update parameters and quantify uncertainties using limited observations. Additionally, these numerical experiments reveal a tendency for increased information about nonlinear behavior to result in decreased uncertainty in terms of estimations. This study provides a robust tool for quantifying uncertainty in scenarios characterized by considerable uncertainty, thereby expanding the applicability of Bayesian updating methods in data-constrained environments.
Is the Radio Core of BL Lac Precessing?
Creators: name: Mutel, R. L.
name: Denn, G. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Stirling et al. (2003) reported the discovery of a 2.3 year periodic variation in the structural position angle of the parsec-scale radio core of the blazar BL Lac. We searched for independent confirmation of this periodic behavior using 43 GHz images of the radio core during ten epochs overlapping those of Stirling et al. Our maps are consistent with several periodicities, including one near the period reported by Stirling et al. By comparing our position angle measurements with those of Stirling et al., we find strong consistent evidence for position angle variations of the inner core during the observed epochs. However, the claim for periodic variation is not convincing, especially when the most recent epochs (2000.60 - 2003.78) are included. A definitive resolution will require continued monitoring of the core structure over several periods.
description: 17 pages, 3 figures, accepted by Ap. J
title: Application of lactose based autoinduction for heterologous production of an active [NiFe] hydrogenase in E. coli
Creators: name: De La Fuente Kratzborn, Francisco
name: Fan, Qin
name: Neubauer, Peter
name: Gimpel, Matthias
Publisher: name: Technische Universität Berlin
Year: 2025
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaften::620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: [NiFe]-hydrogenase
subject: autoinduction
subject: regulatory hydrogenase
subject: Cupriavidus necator
subject: regulierende Hydrogenase
subject: Kupferstecher

description: Objectives: This study aims to assess whether a fed-batch-based auto-induction method can enhance active hydrogenase production, encompassing cofactor formation and space-time yield. Results: The recombinant Escherichia coli strain BQF8RH8, possessing plasmids for assembly and proper maturation of Cupriavidus necator regulatory hydrogenase (RH), was cultivated in the fed-batch like EnPresso B medium with an autoinduction lactose-based system. As expected , we obtained active RH demonstrating the feasibility of the process for active hydrogenase production. Conclusion: Our results affirm the viability of the previously developed auto-induction strategy also for a functional hydrogenase with the complex maturation process. This, which significantly accelerates the process and enhances hydrogenase productivity
Hints of (de)confinement in Yang-Mills-Chern-Simons theories in the maximal Abelian gauge
Creators: name: Ferreira, Luigi C.
name: Pereira, Antonio D.
name: Sobreiro, Rodrigo F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The study of Yang-Mills theories in three dimensions is an insightful playground to grasp important features for the four-dimensional case. Additionally, in three dimensions, the Chern-Simons term can be introduced with a mass parameter of topological nature. Quantizing such a theory in the continuum demands a gauge fixing which, in general, is plagued by Gribov copies. In this work, Yang-Mills-Chern-Simons theories are quantized in the maximal Abelian gauge and the existence of infinitesimal Gribov copies is taken into account. The elimination of copies modifies the (Abelian) gluon propagator leading to two different phases: one in which all poles are complex and thus interpreted as a confining phase and another where an excitation which can be part of the physical spectrum is present.
description: 12 pages, 5 figures
PROBLEMS OF INTRODUCING ELECTRONIC DOCUMENTARY SYSTEM WITHIN THE CONCEPT OF ENTERPRISE INNOVATIVE DEVELOPMENT
Creators: name: Mohova, Elena
name: Mohova, Elena
Publisher: name: Unknown
Year: 2009
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Computer technologies
subject: electronic documents
subject: automated business procedures

description: Introducing electronic systems that integrates and automate decisions flows and documents exchange and circulation is important area for a company growth. Developing electronic documentary systems helps to integrate and optimize important business processes and thereby decrease economic and administrative costs.
African hunt for investment: any chance for success?
Creators: name: Dyakov, Ignaty
name: Dyakov, Ignaty
Publisher: name: Unknown
Year: 2009
Subjects: subject: Financial Economics
subject: International Development
subject: FDI
subject: Africa
subject: determinants
subject: policy recommendations

description: During recent two decades the world has witnessed a drastic increase in global FDI inflows. Gradually more and more investment has been directed to the developing countries in the attempt to diversify portfolios and use finance in the most efficient way. Not all developing regions of the world perfectly succeeded in attracting FDI. Large by labor force and territory, abundant in natural resources Sub-Saharan Africa could perform much better in this aspect. This paper once again reviews the opportunities for FDI in Africa and suggests possible ways for authorities of African states to overcome the existing situation.
Strange hadron production in a quark combination model in Au+Au collisions at RHIC energies
Creators: name: Song, Jun
name: Wang, Xiao-feng
name: Li, Hai-hong
name: Wang, Rui-qin
name: Shao, Feng-lan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We apply a quark combination model to study yield densities and transverse momentum ($p_{T}$) spectra of strange (anti-)hadrons at mid-rapidity in central Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7, 11.5, 19.6, 27, 39 and 200 GeV. We show that experimental data for $p_{T}$ spectra of (anti-)hadrons in these collisions can be systematically described by the equal velocity combination of constituent quarks and antiquarks at hadronization. We obtain $p_{T}$ spectra of quarks and antiquarks at hadronization and study their collision energy dependence. We also reproduce the yield densities of hadrons and anti-hadrons. In particular, we demonstrate that yield ratios of anti-hadrons to hadrons $K^{-}/K^{+}$, $\bar{p}/p$, $\barΛ/Λ$, $\barΞ^{+}/Ξ^{-}$ and $\barΩ^{+}/Ω^{-}$ simply correlate with each other and their experimental data except $\barΩ^{+}/Ω^{-}$ at $\sqrt{s_{NN}}=$ 7.7 GeV are systematically described by the model. These results suggest that the equal velocity combination mechanism for quarks and antiquarks at hadronization plays an important role in Au+Au collisions at low RHIC energies ($\sqrt{s_{NN}}\geq$ 11.5 GeV).
description: 14 pages, 13 figures
AlignZeg: Mitigating Objective Misalignment for Zero-shot Semantic Segmentation
Creators: name: Ge, Jiannan
name: Xie, Lingxi
name: Xie, Hongtao
name: Li, Pandeng
name: Zhang, Xiaopeng
name: Zhang, Yongdong
name: Tian, Qi
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: A serious issue that harms the performance of zero-shot visual recognition is named objective misalignment, i.e., the learning objective prioritizes improving the recognition accuracy of seen classes rather than unseen classes, while the latter is the true target to pursue. This issue becomes more significant in zero-shot image segmentation because the stronger (i.e., pixel-level) supervision brings a larger gap between seen and unseen classes. To mitigate it, we propose a novel architecture named AlignZeg, which embodies a comprehensive improvement of the segmentation pipeline, including proposal extraction, classification, and correction, to better fit the goal of zero-shot segmentation. (1) Mutually-Refined Proposal Extraction. AlignZeg harnesses a mutual interaction between mask queries and visual features, facilitating detailed class-agnostic mask proposal extraction. (2) Generalization-Enhanced Proposal Classification. AlignZeg introduces synthetic data and incorporates multiple background prototypes to allocate a more generalizable feature space. (3) Predictive Bias Correction. During the inference stage, AlignZeg uses a class indicator to find potential unseen class proposals followed by a prediction postprocess to correct the prediction bias. Experiments demonstrate that AlignZeg markedly enhances zero-shot semantic segmentation, as shown by an average 3.8% increase in hIoU, primarily attributed to a 7.1% improvement in identifying unseen classes, and we further validate that the improvement comes from alleviating the objective misalignment issue.
Possibility of Ultra High-Energy Cosmic Rays from the Giant Flare in SGR 1806-20
Creators: name: Asano, Katsuaki
name: Yamazaki, Ryo
name: Sugiyama, Naoshi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: On 2004 December 27, a giant flare from the soft gamma repeater 1806$-$20 was observed. The radiation mechanism of the initial peak of the flare would be controversial. In this letter we point out that very high-energy cosmic rays would be produced in the case that the flare was caused by internal shocks, as is usually considered for gamma-ray bursts. The highest energy of cosmic rays can reach $10^{19}$ eV, if the Lorentz factor of the shocks is sufficiently high. Future observations of cosmic rays will inform us about the mechanism of the giant flare.
description: 8 pages, 2figures
Mini round robin : an enhanced frame-based scheduling algorithm for multimedia networks
Creators: name: Al-Khasib, Tariq Jamal
Publisher: name: University of British Columbia
Year: 2009

description: The broad spread of packet data networks and the emergence of applications in multimedia communications, created a driving force towards an improved Quality of Service (QoS) model for today's Internet. A primary component of this model is packet schedulers. We introduce a new frame-based scheduling technique called Mini Round Robin (MRR) that is primarily designed for providing lower latency bounds, and lower start-up latency bound for low-rate but high-priority flows. Most scheduling methods are based on the concept of providing a delay bound based on the bandwidth reserved by the session. The main advantage of MRR is its ability to decouple the delay from session bandwidth. This enables applications such as Voiceover- IP to demand low delay despite the low reserved bit rate of the voice sessions. MRR is computationally very efficient with an O(1) per packet work complexity, and it provides better fairness to multimedia sessions compared to other frame-based scheduling algorithms. We show that some of the most recently introduced schedulers fail to provide fairness or bounded latency under certain network conditions, and we propose a solution to overcome this problem. Finally, we present an extensive set of performance and validation test results obtained from simulations conducted using network models built for each one of the scheduling algorithms under consideration.
Thermal fluctuations of matter composition and quark nucleation in compact stars
Creators: name: Guerrini, Mirco
name: Pagliara, Giuseppe
name: Drago, Alessandro
name: Lavagno, Andrea
Publisher: name: arXiv
Year: 2024
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: At the extreme densities reached in the core of neutron stars, it is possible that quark deconfined matter is produced. The formation of this new phase of strongly interacting matter is likely to occur via a first-order phase transition for the typical temperatures reached in astrophysical processes. The first seeds of quark matter would then form through a process of nucleation within the metastable hadronic phase. Here we address the role of the thermal fluctuations in the hadronic composition on the nucleation of two-flavour quark matter. At finite temperature, thermodynamic quantities in a system fluctuate around average values. Being nucleation a local process, it is possible that it occurs in a subsystem whose composition makes the nucleation easier. We will consider the total probability of the nucleation as the product between the probability that a subsystem has a certain hadronic composition different from the average in the bulk, and the nucleation probability in that subsystem. We will show how those fluctuations of the hadronic composition can increase the efficiency of nucleation already for temperatures $\sim (0.1-1)$ keV. However, for temperatures $\lesssim (1-10)$ MeV, the needed overpressure exceeds the maximum pressure reached in compact stars. Finally, for even larger temperatures the process of nucleation can take place, even taking into account finite size effects.
description: 16 pages, 9 figures
Background independence in a nutshell
Creators: name: Rovelli, Carlo
name: Colosi, Daniele
name: Doplicher, Luisa
name: Fairbairn, Winston
name: Modesto, Leonardo
name: Noui, Karim
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study how physical information can be extracted from a background independent quantum system. We use an extremely simple `minimalist' system that models a finite region of 3d euclidean quantum spacetime with a single equilateral tetrahedron. We show that the physical information can be expressed as a boundary amplitude. We illustrate how the notions of "evolution" in a boundary proper-time and "vacuum" can be extracted from the background independent dynamics.
description: 19 pages, 19 figures
Comparing quantum fluctuations in the spin-$\frac{1}{2}$ and spin-$1$ XXZ Heisenberg models on square and honeycomb lattices
Creators: name: Kadosawa, Masahiro
name: Nakamura, Masaaki
name: Ohta, Yukinori
name: Nishimoto, Satoshi
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a detailed investigation of the XXZ Heisenberg model for spin-$1/2$ and spin-$1$ systems on square and honeycomb lattices. Utilizing the density-matrix renormalization group (DMRG) method, complemented by Spiral Boundary Conditions (SBC) for mapping two-dimensional (2D) clusters onto one-dimensional (1D) chains, we meticulously explore the evolution of staggered magnetization and spin gaps across a broad spectrum of easy-axis anisotropies. Our study reveals that, despite the lower site coordination number of honeycomb lattice, which intuitively suggests increased quantum fluctuations in its Néel phase compared to the square lattice, the staggered magnetization in the honeycomb structure exhibits only a marginal reduction. Furthermore, our analysis demonstrates that the dependence of staggered magnetization on the XXZ anisotropy $Δ$, except in close proximity to $Δ=1$, aligns with series expansion predictions up to the 12th order. Notably, for the $S=1/2$ honeycomb lattice, deviations from the 10th order series expansion predictions near the isotropic Heisenberg limit emphasize the critical influence of quantum fluctuations on the spin excitation in its Néel state. Additionally, our findings are numerically consistent with the singular behavior of the spin gap near the isotropic Heisenberg limit as forecasted by spin-wave theory. The successful implementation of SBC marks a methodological advancement, streamlining the computational complexity involved in analyzing 2D models and paving the way for more precise determinations of physical properties in complex lattice systems.
description: 11 pages, 10 figures, 3 tables
WORLD FINANCIAL SYSTEM IN THE CONDITIONS OF CRISIS AND PROSPECTS OF CREATION THE NEW RESERVE CURRENCIES
Creators: name: Pavlova, Maria
name: Pavlova, Maria
Publisher: name: Unknown
Year: 2009
Subjects: subject: International Development
subject: World currency system
subject: financial crisis
subject: reserve currency
subject: regional currency
subject: inflation
subject: new currency creation

description: Credit crunch started with US subprime mortgage crisis spread to other parts of the world. Countries across the world call for reforms in international financial system. The author considers that financial crises catalyzes international tendencies to create regional currencies. Also, paper concludes that for Russian Ruble to become a regional currency much efforts need to be done in terms of increasing country’s attractiveness for foreign investors.
Optimal Equilibria for Multi-dimensional Time-inconsistent Stopping Problems
Creators: name: Huang, Yu-Jui
name: Wang, Zhenhua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Finance (q-fin.MF)
subject: Optimization and Control (math.OC)
subject: Probability (math.PR)
subject: FOS: Economics and business
subject: FOS: Mathematics
subject: 60G40, 60J45, 91G80

description: We study an optimal stopping problem under non-exponential discounting, where the state process is a multi-dimensional continuous strong Markov process. The discount function is taken to be log sub-additive, capturing decreasing impatience in behavioral economics. On strength of probabilistic potential theory, we establish the existence of an optimal equilibrium among a sufficiently large collection of equilibria, consisting of finely closed equilibria satisfying a boundary condition. This generalizes the existence of optimal equilibria for one-dimensional stopping problems in prior literature.
Theoretical investigation of a polarizable colloid in the salt medium
Creators: name: Bakhshandeh, Amin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In the present work, we have extended a weak coupling theory [A. Bakhshandeh, A. P. dos Santos and Y. Levin Phys. Rev. Lett 107, 107801 (2011)] for systems with added 1:1 electrolyte. To study the accuracy of the developed theory, we compare its numerical predictions with Monte Carlo simulation data and a recent theory which accounts for the surface polarization. A very good agreement is found for the case of monovalent electrolytes, up to very high salt concentrations and different colloidal charges
Large bubble drives melting in circular DNA
Creators: name: Sengupta, Souradeep
name: Bhattacharjee, Somendra M.
name: Mishra, Garima
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the melting transition of non-supercoiled circular DNA of different lengths, employing Brownian dynamics simulation. In the absence of supercoiling, we find that melting of circular DNA is driven by a large bubble, which agrees with the previous predictions of circular DNA melting in the presence of supercoiling. By analyzing sector-wise changes in average base-pair distance, our study reveals that the melting behavior of circular DNA closely resembles that of linear DNA. Additionally, we find a marked difference in the thermal stability of circular DNA over linear DNA at very short length scales, an effect that diminishes as the length of circular DNA increases. The stability of smaller circular DNA is linked to the occurrence of transient small bubbles, characterized by a lower probability of growth.
description: 11 figures
DEVELOPMENT OF INTEGRATION PROCESSES WITHIN THE SHANGHAI COOPERATION ORGANIZATION
Creators: name: Lan, Czyan
name: Lan, Czyan
Publisher: name: Unknown
Year: 2009
Subjects: subject: International Development
subject: International Relations/Trade
subject: Regional integration
subject: trade cooperation
subject: Central Asia
subject: China

description: Trade and investment cooperation is one of important direction within the Shanghai Organization of Cooperation reveal. The special attention is given a interests of China in expanding its economic interests in Central Asia. The paper describes the potential for further trade and investment involvement of China to cooperation with other parties of the international organization.
Dependence of the superconducting transition temperature on the doping level in single crystalline diamond films
Creators: name: Bustarret, Etienne
name: Kacmarcik, Jozef
name: Marcenat, Christophe
name: Gheeraert, Etienne
name: Cytermann, Catherine
name: Marcus, Jacques
name: Klein, Thierry
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Homoepitaxial diamond layers doped with boron in the 10^20-10^21 /cm3 range are shown to be type II superconductors with sharp transitions (~0.2K) at temperatures increasing from 0 to 2.1 K with boron contents. The critical concentration for the onset of superconductivity is about 5-7 10^20 /cm3, close to the metal-insulator transition. The H-T phase diagram has been obtained from transport and a.c. susceptibility measurements down to 300mK. These results bring new quantitative constraints on the theoretical models proposed for superconductivity in diamond.
Socio-economic reforms of the 1920s as a preparation for the forthcoming «agrarian radicalism»
Creators: name: Kadisova, Roza
name: Kadisova, Roza
Publisher: name: Unknown
Year: 2009
Subjects: subject: Community/Rural/Urban Development
subject: International Development
subject: Socio-economic reforms
subject: agrarian
subject: radicalism
subject: modernization

description: The article considers socio-economic reforms of the 1920s in Kazakhstan as a preparation for the forthcoming «agrarian radicalism». Historiography still does not give any distinct conclusions on the question, whether the socio-economical reforms of the 1920s years allayed the problem of inequality in the aul. The author calls for a wider perception spectrum of the so-called Soviet experience of modernization the agrarian sphere of Kazakhstan.
The Cellular Potts Model on Disordered Lattices
Creators: name: Nemati, Hossein
name: de Graaf, Joost
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The Cellular Potts model, also known as the Glazier-Graner-Hogeweg model, is a lattice-based approach by which biological tissues at the level of individual cells can be numerically studied. Traditionally, a square or hexagonal underlying lattice structure is assumed for two-dimensional systems, and this is known to introduce artifacts in the structure and dynamics of the model tissues. That is, on regular lattices, cells can assume shapes that are dictated by the symmetries of the underlying lattice. Here, we developed a variant of this method that can be applied to a broad class of (ir)regular lattices. We show that on an irregular lattice deriving from a fluid-like configuration, two types of artifacts can be removed. We further report on the transition between a fluid-like disordered and a solid-like hexagonally ordered phase present for monodisperse confluent cells as a function of their surface tension. This transition shows the hallmarks of a first-order phase transition and is different from the glass/jamming transitions commonly reported for the vertex and active Voronoi models. We emphasize this by analyzing the distribution of shape parameters found in our state space. Our analysis provides a useful reference for the future study of epithelia using the (ir)regular Cellular Potts model.
description: This paper has been accepted for publication in Soft Matter as an open-access article, available at the DOI provided. A major revision was made during the review process, changing the method for capturing the transition point using the effective self-diffusion coefficient instead of the mean square displacement scaling exponent. We thank the reviewers for their constructive feedback
Role of $Δ$s in determining the properties of Neutron Stars in parameterized hydrostatic equilibrium
Creators: name: Sen, Debashree
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The possible existence of $Δ$ resonances is inspected in the cold dense matter of neutron star (NS) core in presence of the hyperons. The diverse effects of variation in $Δ$ mass on their formation and the equation of state (EoS) are studied in this work with an effective chiral model and the resultant NS properties are calculated with the help of parameterized Tolman-Oppenheimer-Volkoff equations (PTOV) to bring out the two important features of pressure in the context of massive NSs. The $Δ$ puzzle is re-explored and resolved taking into account the concept of modified/parameterized inertial pressure and self-gravity in case of massive pulsars like PSR J1614-2230 and PSR J0348-0432. It is seen that although the presence of exotic matter like the hyperons and the $Δ$s softens the EoS considerably, their presence in massive NSs can be successfully explained with the theory of parameterized hydrostatic equilibrium conditions. The results of this work also satisfy the constraints on $R_{1.4}$ and $R_{1.6}$ from the gravitational wave (GW170817) detection of binary NS merger. The constraint on baryonic mass from PSR J0737-3039 is also satisfied with the solutions of the PTOV equations for all the $Δ$ masses considered.
description: 24 pages, 9 figures
Characterization and modeling of crosstalk bounded uncorrelated jitter (Buj) for high-speed interconnects
Creators: name: Kuo, Andy
Publisher: name: University of British Columbia
Year: 2009

description: As data rates move towards the Gbps regime, effects that may have been ignored at lower data rates are becoming significant. Such signal integrity issues decrease the timing budget of I/O interconnects exponentially and hence, place a stringent requirement on the total jitter budget. The issues that affect signal integrity also affect jitter as both share many common root causes. Jitter can be divided into different subcomponents each with different root causes and properties. Crosstalk Jitter, or commonly referred in the industry as Bounded Uncorrelated Jitter (BUJ), is a jitter subcomponent that is mostly caused by crosstalk coupling from the adjacent interconnects on printed-circuit boards (PCB). However, the characteristics of BUJ are still ill understood. In addition, a mathematical model of jitter and an algorithm to generate a histogram for BUJ have not been developed to this date. The crosstalk-induced pulse characteristic from an aggressor signal is studied here. Based on the superposition principle, a jitter model to calculate the time difference between the distortion-free and the distorted edge crossings was developed. This model is also extended to calculate the worst-case timing difference. In addition, algorithms to generate the histogram distributions of BUJ are also developed. Simulation and measurement results validate the BUJ model. Algorithms developed to generate the histogram for BUJ show reasonable accuracy with four aggressor traces or less. These algorithms have fast execution times of 5~20 seconds, compared to simulation and measurement times in the range of 10~30 minutes, which require data post-processing.
Investigating the morphology of the supernova remnant G349.7+00.2 in the medium with a density gradient
Creators: name: Yan, Jing-Wen
name: Lu, Chun-Yan
name: Wen, Lu
name: Yu, Huan
name: Fang, Jun
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: G349.7 + 00.2 is a young Galactic supernova remnant (SNR) with a mushroom morphology in radio and X-rays, and it has been detected across the entire electromagnetic spectrum from radio to high energy $γ$-rays. Moreover, the remnant is interacting with a molecular cloud based on the observations in the radio and infrared band. The reason for the formation of the periphery and the dynamical evolution of the remnant are investigated using 3D hydrodynamical (HD) simulations. Under the assumption that the supernova ejecta is evolved in the medium with a density gradient, the shell is composed of two hemispheres with different radiuses, and the smaller hemisphere is in relatively dense media. The resulting periphery of remnant is consistent with detected ones, and it can be concluded that the peculiar periphery of G349.7+00.2 can be reproduced as the remnants interacting with the medium with a density gradient.
description: 8 pages, 5 figures
Republic of Kazakhstan language policy as reflection of ethnic status evolution of the titular ethnos
Creators: name: Aryn, Rizat
name: Aryn, Rizat
Publisher: name: Unknown
Year: 2009
Subjects: subject: Teaching/Communication/Extension/Profession
subject: State language
subject: language policy
subject: titular ethnos

description: Current article deals with the language policy and its role in the development of the nation. It defines the official status of Kazakh language, its practical implementation and significance in light of the society democratization.
How robust is a 2SC quark matter phase under compact star constraints?
Creators: name: Aguilera, D. N.
name: Blaschke, D.
name: Grigorian, H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the phase structure and equation of state for two-flavor quark matter at low temperature under compact star constraints within a nonlocal chiral quark model. We find that the occurence of a two-flavor color superconducting (2SC) phase is sensitive to variations of both the formfactor of the interaction and the ratio ηbetween the coupling constants in the diquark and the scalar meson channels. Our study suggests that for standard values of the coupling ratio 0.51200 MeV and most likely not relevant for compact stars. We also present the relevant region of the phase diagram for compact star applications and obtain that no gapless 2SC occurs at low temperatures.
description: 19 pages, 9 figures, Subsec.2.5: "Phase diagram" added
Geometry of Kirkwood-Dirac classical states: A case study based on discrete Fourier transform
Creators: name: Yang, Ying-Hui
name: Yao, Shuang
name: Geng, Shi-Jiao
name: Wang, Xiao-Li
name: Chen, Pei-Ying
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The characterization of Kirkwood-Dirac (KD) classicality or non-classicality is very important in quantum information processing. In general, the set of KD classical states with respect to two bases is not a convex polytope[J. Math. Phys. \textbf{65} 072201 (2024)], which makes us interested in finding out in which circumnstances they do form a polytope. In this paper, we focus on the characterization of KD classicality of mixed states for the case where the transition matrix between two bases is a discrete Fourier transform (DFT) matrix in Hilbert space with dimensions $p^2$ and $pq$, respectively, where $p, q$ are prime. For the two particular cases we investigate, the sets of extremal points are finite, implying that the set of KD classical states we characterize forms a convex polytope. We show that for $p^2$ dimensional system, the set $\rm{KD}_{\mathcal{A},\mathcal{B}}^+$ is a convex hull of the set $\rm {pure}({\rm {KD}_{\mathcal{A},\mathcal{B}}^+})$ based on DFT, where $\rm{KD}_{\mathcal{A},\mathcal{B}}^+$ is the set of KD classical states with respect to two bases and $\rm {pure}({\rm {KD}_{\mathcal{A},\mathcal{B}}^+})$ is the set of all the rank-one projectors of KD classical pure states with respect to two bases. In $pq$ dimensional system, we believe that this result also holds. Unfortunately, we do not completely prove it, but some meaningful conclusions are obtained about the characterization of KD classicality.
description: 26 pages
Supplementary Materials from Concurrent anthropogenic air pollutants enhance recruitment of a specialist parasitoid
Creators: name: Ryalls, James M. W.
name: Bromfield, Lisa M.
name: Bell, Luke
name: Jasper, Jake
name: Mullinger, Neil J.
name: Blande, James D.
name: Girling, Robbie D.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences

description: Figure S1, Tables S1-S3
Underwater Cultural Resources Management and Protection: U.S. Navy Shipwrecks in Hawaiian Waters, an Inventory of Submerged Naval Properties - Report (Legacy 01-121)
Creators: name: Van Tilburg, Hans K.
Publisher: name: DoD Legacy Resource Management Program
Year: 2003
Subjects: subject: Hawaii
valueUri: https://core.tdar.org/browse/geographic-keyword/91/hawaii
subject: 19th Century
valueUri: https://core.tdar.org/browse/temporal-keyword/5536/19th-century
subject: 20th Century
valueUri: https://core.tdar.org/browse/temporal-keyword/4/20th-century
subject: World War II
valueUri: https://core.tdar.org/browse/temporal-keyword/3992/world-war-ii
subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: Water-Related
valueUri: https://core.tdar.org/browse/site-type/365/water-related
subject: Shipwreck
valueUri: https://core.tdar.org/browse/site-type/367/shipwreck
subject: Submerged Aircraft
valueUri: https://core.tdar.org/browse/site-type/368/submerged-aircraft
subject: Archaeological Feature
valueUri: https://core.tdar.org/browse/site-type/339/archaeological-feature
subject: Site Management
valueUri: https://core.tdar.org/browse/other-keyword/138064/site-management
subject: Historic Context
valueUri: https://core.tdar.org/browse/other-keyword/42191/historic-context
subject: Submerged Aircraft
valueUri: https://core.tdar.org/browse/other-keyword/159325/submerged-aircraft
subject: U.S. Navy
valueUri: https://core.tdar.org/browse/other-keyword/14432/us-navy
subject: Shipwrecks
valueUri: https://core.tdar.org/browse/other-keyword/86578/shipwrecks
subject: National Register of Historic Places
valueUri: https://core.tdar.org/browse/other-keyword/1572/national-register-of-historic-places
subject: Historic Properties
valueUri: https://core.tdar.org/browse/other-keyword/31316/historic-properties
subject: Inventory
valueUri: https://core.tdar.org/browse/other-keyword/533/inventory
subject: Underwater Archaeology
valueUri: https://core.tdar.org/browse/other-keyword/4198/underwater-archaeology
subject: Site Identification
valueUri: https://core.tdar.org/browse/other-keyword/3287/site-identification
subject: Submerged Properties
valueUri: https://core.tdar.org/browse/other-keyword/166491/submerged-properties
subject: Hawaiian Islands
valueUri: https://core.tdar.org/browse/other-keyword/166492/hawaiian-islands
subject: Historic Background Research
valueUri: https://core.tdar.org/browse/investigation-type/18/historic-background-research
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management

description: This survey report summarizes all known information for submerged U.S. naval properties in the vicinity of the Hawaiian Islands, based on various published and unpublished documents, oral reports, previously completed archaeological investigations, and archival resources. The report includes background information on the environmental setting of Hawaii, prehistoric and historic contexts, potential National Register nominations, and management recommendations.
title: Causal Hierarchy in the Financial Market Network—Uncovered by the Helmholtz–Hodge–Kodaira Decomposition
Creators: name: Wand, Tobias
name: Kamps, Oliver
name: Iyetomi, Hiroshi
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2025
Subjects: subject: 530 Physics

description: Granger causality can uncover the cause-and-effect relationships in financial networks. However, such networks can be convoluted and difficult to interpret, but the Helmholtz–Hodge–Kodaira decomposition can split them into rotational and gradient components which reveal the hierarchy of the Granger causality flow. Using Kenneth French’s business sector return time series, it is revealed that during the COVID crisis, precious metals and pharmaceutical products were causal drivers of the financial network. Moreover, the estimated Granger causality network shows a high connectivity during the crisis, which means that the research presented here can be especially useful for understanding crises in the market better by revealing the dominant drivers of crisis dynamics.
description: Finanziert durch den Open-Access-Publikationsfonds der Universität Münster.
Ancilla mediated qubit readout and heralded entanglement between rare-earth dopant ions in crystals
Creators: name: Debnath, Kamanasish
name: Kiilerich, Alexander Holm
name: Mølmer, Klaus
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Owing to their long excited state lifetimes, rare-earth ions in crystals are widely used in quantum applications. To allow optical readout of the qubit state of individual ions, we propose to dope the crystal with an additional nearby ancilla ion with a shorter radiative lifetime. We show how a Bayesian analysis exhausts the information about the state of the qubit from the optical signal of the ancilla ion. We study the effects of incoherent processes and propose ways to reduce their effect on the readout. Finally, we extend the architecture to ions residing in two remote cavities, and we show how continuous monitoring of fluorescence signals from the two ancilla ions leads to entanglement of the qubit ions.
description: 9 pages, 5 figures (Accepted version, to appear in Phys. Rev. A)
Combinatorics and Geometry of Higher Level Weyl Modules
Creators: name: Feigin, B.
name: Kirillov, A. N.
name: Loktev, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Algebra (math.QA)
subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 22E67, 14M15, 05E10

description: A higher level analog of Weyl modules over multi-variable currents is proposed. It is shown that the sum of their dual spaces form a commutative algebra. The structure of these modules and the geometry of the projective spectrum of this algebra is studied for the currents of dimension one and two. Along the way we prove some particular cases of the conjectures in [FL1] and propose a generalization of the notion of parking function representations.
description: 15 pages, LaTeX
Isochronism and tangent bifurcation of band edge modes in Hamiltonian lattices
Creators: name: Dorignac, J.
name: Flach, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In {\em Physica D} {\bf 91}, 223 (1996), results were obtained regarding the tangent bifurcation of the band edge modes ($q=0,π$) of nonlinear Hamiltonian lattices made of $N$ coupled oscillators. Introducing the concept of {\em partial isochronism} which characterises the way the frequency of a mode, $ω$, depends on its energy, $ε$, we generalize these results and show how the bifurcation energies of these modes are intimately connected to their degree of isochronism. In particular we prove that in a lattice of coupled purely isochronous oscillators ($ω(ε)$ strictly constant), the in-phase mode ($q=0$) never undergoes a tangent bifurcation whereas the out-of-phase mode ($q=π$) does, provided the strength of the nonlinearity in the coupling is sufficient. We derive a discrete nonlinear Schrödinger equation governing the slow modulations of small-amplitude band edge modes and show that its nonlinear exponent is proportional to the degree of isochronism of the corresponding orbits. This equation may be seen as a link between the tangent bifurcation of band edge modes and the possible emergence of localized modes such as discrete breathers.
description: 23 pages, 1 figure
சீவகசிந்தாமணி இலக்கணையார் இலம்பகத்தில் திருமணச்சடங்கு முறைகள்
Creators: name: Kala, Sree
Publisher: name: figshare
Year: 2020
Subjects: subject: 200315 Indian Languages
subject: FOS: Languages and literature
subject: 200520 Indian Literature

description: சீவகசிந்தாமணி இலக்கணையார் இலம்பகம் அரசகுல மகளிரின குறிப்பிடுகிறது சோதிடகலையில் சிறந்தவனைஅழைத்து நல்லநாளை தேர்வுசெய்வர் மணநிகழ்வுக்கான சடங்குமுறைகள் ஏழு நாட்கள் நடைபெற்றன திருமணம் முடிந்து ஏழு நாட்கள் கழிந்தபின்னரே அரணமனையை விட்டு வெளியேச்செல்லும் பழக்கம் இருந்தது மணமகனுக்கு திருமணத்தின் முன் சிகைகழி சடங்கு நடத்தப்பட்டது வேள்விச்சாலை அமைத்து திருமணம் செய்தனர்