cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Age-Dating Red Giant Stars Associated with Galactic Disk and Halo Substructures
Creators: name: Grunblatt, Samuel K.
name: Zinn, Joel C.
name: Price-Whelan, Adrian M.
name: Angus, Ruth
name: Saunders, Nicholas
name: Hon, Marc
name: Stokholm, Amalie
name: Bellinger, Earl P.
name: Martell, Sarah L.
name: Mosser, Benoit
name: Cunningham, Emily
name: Tayar, Jamie
name: Huber, Daniel
name: Rørsted, Jakob Lysgaard
name: Aguirre, Victor Silva
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The vast majority of Milky Way stellar halo stars were likely accreted from a small number ($\lesssim$3) of relatively large dwarf galaxy accretion events. However, the timing of these events is poorly constrained, relying predominantly on indirect dynamical mixing arguments or imprecise age measurements of stars associated with debris structures. Here, we aim to infer robust stellar ages for stars associated with galactic substructures to more directly constrain the merger history of the Galaxy. By combining kinematic, asteroseismic, and spectroscopic data where available, we infer stellar ages for a sample of 10 red giant stars that were kinematically selected to be associated with the stellar halo, a subset of which are associated with the Gaia-Enceladus-Sausage halo substructure, and compare their ages to 3 red giant stars in the Galactic disk. Despite systematic differences in both absolute and relative ages determined by this work, age rankings of stars in this sample are robust. Passing the same observable inputs to multiple stellar age determination packages, we measure a weighted average age for the Gaia-Enceladus-Sausage stars in our sample of 8 $\pm$ 3 (stat.) $\pm$ 1 (sys.) Gyr. We also determine hierarchical ages for the populations of Gaia-Enceladus-Sausage, in situ halo and disk stars, finding a Gaia-Enceladus-Sausage population age of 8.0$^{+3.2}_{-2.3}$ Gyr. Although we cannot distinguish hierarchical population ages of halo or disk structures with our limited data and sample of stars, this framework should allow distinct characterization of Galactic substructures using larger stellar samples and additional data available in the near future.
description: 28 pages, 21 figures. Published by AAS Journals
Anomalous Hall effect for the phonon heat conductivity in paramagnetic dielectric
Creators: name: Kagan, Yu.
name: Maksimov, L. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The theory of anomalous Hall effect for the heat transfer in a paramagnetic dielectric, discovered experimentally in [1], is developed. The appearance of the phonon heat flux normal to both the temperature gradient and the magnetic field is connected with the interaction of magnetic ions with the crystal field oscillations. In crystals with an arbitrary phonon spectrum this interaction creates the elliptical polarization of phonons. The kinetics related to phonon scattering induced by the spin-phonon interaction determines an origin of the off-diagonal phonon density matrix. The combination of the both factors is decisive for the phenomenon under consideration.
description: 5 pages; typos and abstract corrected
Superfield formulation of 4D, N=1 massless higher spin gauge field theory and supermatrix model
Creators: name: Saitou, Takashi
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the relation between a supermatrix model and the free 4D, N=1 supersymmetric field theory of a massless supermultiplet with spins (3, 5/2). In order to do this, we construct a superfield formulation of the theory. We show that solutions of the equations of motion for the supermultiplet (3, 5/2) satisfy the equations of motion of a supermatrix model.
description: 22 pages, no figures
SEPARATE ISSUES OF PREPARING FOR AN ONE BET
Creators: name: Belov, S.
name: Brager, D.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: confrontation
preparation
investigative action
forensic tactics
confrontation tactics

description: The production of confrontation is aimed at obtaining new testimony and checking the existing testimony in order to eliminate the existing significant contradictions that were identified in the process of interrogating suspects, witnesses, accused or victims. The most optimal way to achieve the goal of eliminating contradictions in the testimony of the interrogated persons is properly organized preparation for a confrontation. The complexity of this investigative action determines the relevance of studying the issues of preparation and production of confrontation. In the course of the research carried out within the framework of this article, the authors disclose the issues of organizing a confrontation on p, investigate the main preparations for conducting a confrontation
THE THEME AND PROBLEM OF BEAUTY IN THE POETICS OF NIKOLAI ZABOLOTSKY
Creators: name: Kopteva, G.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: the meaning of beauty
soul
face
portrait
philosophical question
inner integrity
spiritual principle.

description: This article examines the problem of beauty in the poetics of Nikolai Zabolotsky. Zabolotsky considered the "artistic word" (its work) to be his main activity in life, his way to describe the surrounding reality. His special, reverent attitude to the word, on the one hand, and to nature, on the other, determined both the ethics and aesthetics of this poet. The moral sense in works of the mature Zabolotsky is dominant. Moreover, the poet has always been concerned about the problem of beauty and ugliness of a person, his face and his soul. Starting from the very first poems, a spiritualized face appears in his poetics as an iconic sign. For him, the face plays a fundamental role, and the question of the meaning of beauty is of a "reciprocal" nature. The defining quality in "beauty" and the object of aesthetic contemplation can be internal integrity, that is, the integrity of the soul, personality. Personality as an internal unity of the spiritual principle is the highest form of integrity, and Zabolotsky's understanding of beauty obviously implies that beauty is the highest form of integrity of the spiritual component of the human personality
TYPOLOGICAL SIMILARITIES IN GERMAN AND AZERBAIJANI EMIGRATION LITERATURE (1900-1945)
Creators: name: Muslimova, O.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: emigration
political events
historical events
tragedy
features
literary samples.

description: As you know, social and political events that took place in different periods of the history of mankind are formed, first of all, in the artistic thinking of the people and are reflected in its literature and cultural monuments. It is no coincidence that one of the main means of preserving historical events in the "cultural layer" of the spiritual archeology of the peoples of the world is fiction. For example, the true description of the history of Germany in the twentieth century, characterized by two national upheavals and two bloody world wars, is more fully reflected in the literary samples of German literature of the time than in history textbooks, newsreels and official data.
The environments and clustering properties of 2dFGRS-selected starburst galaxies
Creators: name: Owers, Matt
name: Blake, Chris
name: Couch, Warrick
name: Pracy, Mike
name: Bekki, Kenji
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the environments and clustering properties of starburst galaxies selected from the 2dF Galaxy Redshift Survey (2dFGRS) in order to determine which, if any, environmental factors play a role in triggering a starburst. We quantify the local environments, clustering properties and luminosity functions of our starburst galaxies and compare to random control samples. The starburst galaxies are also classified morphologically in terms of their broad Hubble type and evidence of tidal merger/interaction signatures. We find the starburst galaxies to be much less clustered on large (5-15 Mpc) scales compared to the overall 2dFGRS galaxy population. In terms of their environments, we find just over half of the starburst galaxies to reside in low to intermediate luminosity groups, and a further ~30 per cent residing in the outskirts and infall regions of rich clusters. Their luminosity functions also differ significantly from that of the overall 2dFGRS galaxy population, with the sense of the difference being critically dependent on the way their star formation rates are measured. In terms of pin-pointing what might trigger the starburst, it would appear that factors relating to their local environment are most germane. Specifically, we find clear evidence that the presence of a near neighbour of comparable luminosity/mass within 20 kpc is likely to be important in triggering a starburst. We also find that a significant fraction (20-30 per cent) of our starburst galaxies have morphologies indicative of either an ongoing or recent tidal interaction and/or merger. These findings notwithstanding, there remain a significant portion of starburst galaxies where local environmental influences are not in any obvious way playing a triggering role, leading us to conclude that starbursts can also be internally driven.
description: 20 pages, 13 figures and 2 tables. Accepted for publication in MNRAS
Searches for Direct Pair Production of Supersymmetric Top and Supersymmetric Bottom Quarks in p-pbar Collisions at sqrt(s)=1.96 TeV
Creators: name: CDF Collaboration
name: Aaltonen, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We search for direct pair production of supersymmetric top quarks and supersymmetric bottom quarks in proton-antiproton collisions at sqrt(s)=1.96 TeV, using 295 pb^-1 of data recorded by the Collider Detector at Fermilab (CDF II) experiment. The supersymmetric top (supersymmetric bottom) quarks are selected by reconstructing their decay into a charm (bottom) quark and a neutralino, which is assumed to be the lightest supersymmetric particle. The signature of such processes is two energetic heavy-flavor jets and missing transverse energy. The number of events that pass our selection for each search process is consistent with the expected standard model background. By comparing our results to the theoretical production cross sections of the supersymmetric top and supersymmetric bottom quarks in the minimal supersymmetric standard model, we exclude, at a 95% confidence level in the frame of that model, a supersymmetric top quark mass up to 132 GeV/c^2 for a neutralino mass of 48 GeV/c^2, and a supersymmetric bottom quark mass up to 193 GeV/c^2 for a neutralino mass of 40 GeV/c^2.
description: 12 pages, 5 figures, submitted to Phys. Rev. D
Tilting instability in negative-γrotating nuclei
Creators: name: Matsuzaki, Masayuki
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Based on the cranking model and the random phase approximation, we point out that the wobbling excitation on top of the s band in ^{182}Os is stable against angular momentum tilting. This is consistent with the general trend that the wobbling excitations in γ<0 rotating nuclei are more stable than those in γ>0 ones found in our previous studies. In higher N isotopes known to be γsoft, however, a different type of tilting instability is expected. Its possible correspondence to the experimental data is also discussed.
description: 8 pages, 3 figures, Prog. Theor. Phys., accepted
Optimum Linear LLR Calculation for Iterative Decoding on Fading Channels
Creators: name: Yazdani, Raman
name: Ardakani, Masoud
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: On a fading channel with no channel state information at the receiver, calculating true log-likelihood ratios (LLR) is complicated. Existing work assume that the power of the additive noise is known and use the expected value of the fading gain in a linear function of the channel output to find approximate LLRs. In this work, we first assume that the power of the additive noise is known and we find the optimum linear approximation of LLRs in the sense of maximum achievable transmission rate on the channel. The maximum achievable rate under this linear LLR calculation is almost equal to the maximum achievable rate under true LLR calculation. We also observe that this method appears to be the optimum in the sense of bit error rate performance too. These results are then extended to the case that the noise power is unknown at the receiver and a performance almost identical to the case that the noise power is perfectly known is obtained.
description: This paper will be presented in IEEE International Symposium on Information Theory (ISIT) 2007 in Nice, France
A Particle-Particle, Particle-Density (P3D) algorithm for the calculation of electrostatic interactions of particles with slab-like geometry
Creators: name: Ghasemi, S. Alireza
name: Neelov, Alexey
name: Goedecker, Stefan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present a fast and accurate method to calculate the electrostatic energy and forces of interacting particles with the boundary conditions appropriate to surfaces, i.e periodic in the two directions parallel to the surface and free in the perpendicular direction. In the spirit of the Ewald method the problem is divided into a short range and long range part. The charge density responsible for the long range part is represented by plane waves in the periodic directions and by finite elements in the non-periodic direction. Our method has computational complexity of O(N_g log(N_g)) with a very small prefactor, where N_g is the number of grid points.
description: It has 19 pages and 4 figures
Fast and Low-resource Semi-supervised Abdominal Organ Segmentation in CT
Creators: name: Ma, Jun
name: Wang, Bo
name: Sujeeth Bharadwa
Publisher: name: Zenodo
Year: 2022
Subjects: Abdominal organ
segmentation
efficiency
semi-supervised learning
MICCAI
Challenge

description: Abdomen organ segmentation has many important clinical applications, such as organ quantification, surgical planning, and disease diagnosis. However, manually annotating organs from CT scans is time-consuming and labor-intensive. Thus, we usually cannot obtain a huge number of labeled cases. As a potential alternative, semisupervised learning can explore useful information from unlabeled cases.
 We extend the FLARE 2021 Challenge from fully supervised settings to a semi-supervised setting that focuses on how to use unlabeled data. Specifically, we provide a small number of labeled cases (50) and a large number of unlabeled cases (2000) in the training set, 50 visible cases for validation, and 200 hidden cases for testing. The segmentation targets include 13 organs: liver, spleen, pancreas, right kidney, left kidney, stomach, gallbladder, esophagus, aorta, inferior vena cava, right adrenal gland, left adrenal gland, and duodenum. In addition to the typical Dice Similarity Coefficient (DSC) and Normalized Surface Dice (NSD), our evaluation metrics also focus on the inference speed and resources (GPU, CPU) consumption. Compare to the FLARE 2021 challenge, the dataset is 4x larger and the segmentations targets are increased to 13 organs. Moreover, the resource-related metrics are changed to the area under GPU memory-time curve and the area under CPU utilization-time curve rather than maximum GPU memory consumption.
 The FLARE 2022 challenge has three main features:
 (1) Task: we use a semi-supervised setting that focuses on how to use unlabeled data.
 (2) Dataset: we curate a large-scale and diverse abdomen CT dataset, including 2300 CT scans from 20+ medical groups.
 (3) Evaluation measures: we not only focus on segmentation accuracy but also segmentation efficiency and resource consumption.
Gravitational waves from a dark $U(1)_D$ phase transition in the light of NANOGrav 12.5 yr data
Creators: name: Borah, Debasish
name: Dasgupta, Arnab
name: Kang, Sin Kyu
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study a possibility of a strong first-order phase transition (FOPT) taking place below the electroweak scale in the context of $U(1)_D$ gauge extension of the standard model. As pointed out recently by the NANOGrav collaboration, gravitational waves from such a phase transition with appropriate strength and nucleation temperature can explain their 12.5 yr data. We first find the parameter space of this minimal model consistent with NANOGrav findings considering only a complex singlet scalar and $U(1)_D$ vector boson. Existence of a singlet fermion charged under $U(1)_D$ can give rise to dark matter in this model, preferably of non-thermal type, while incorporating additional fields can also generate light neutrino masses through typical low scale seesaw mechanisms like radiative or inverse seesaw.
description: 9 pages, 5 captioned figures, typo in eq. (1) corrected, matches journal version
On Carmichael's Conjecture
Creators: name: Smarandache, Florentin
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 11K65

description: In this article we prove that equation $ϕ(x)=n$, for a fixed $n$, admits a finite number of solutions, we find the general form of these solutions, and we show that: if $x_0$ is a unique solution of this equation then $x_0$ is a product of a very large number of primes (we conjecture that the number of such primes is infinite).
description: 4 pages
ENERGY SECURITY OF THE COUNTRY: ESSENCE AND PROBLEMS OF SECURITY IN UKRAINE
Creators: name: Petrochenko, O.
name: Zinich, P.
name: Kubanov, R.
name: Kushnir, S.
name: Nischuk, V.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: energy security of Ukraine
economic security of the country
provision of fuel and energy resources
economic efficiency
normative-legal mechanism of ensuring energy security.

description: The essence and main directions of ensuring energy security of Ukraine are determined. It is noted that the improvement of the regulatory mechanism for energy security should contain two main components. The first component is the legal framework governing economic relations between energy market players, as well as between these entities and government agencies in the energy and related sectors of the economy. The second component is the mechanisms of state regulation and instruments of influence on the functioning of the energy sector of Ukraine. According to the authors, energy security is the ability of a sustainable energy system, which is determined by the accuracy, simplicity and ability of this system to respond to technological and economic challenges. The defined direction of activity is an important component of national security in general, so it is important to overcome the existing problems in this area
Evaluation of effective resistances in pseudo-distance-regular resistor networks
Creators: name: Jafarizadeh, M. A.
name: Sufiani, R.
name: Jafarizadeh, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In Refs.[1] and [2], calculation of effective resistances on distance-regular networks was investigated, where in the first paper, the calculation was based on the stratification of the network and Stieltjes function associated with the network, whereas in the latter one a recursive formula for effective resistances was given based on the Christoffel-Darboux identity. In this paper, evaluation of effective resistances on more general networks called pseudo-distance-regular networks [21] or QD type networks \cite{obata} is investigated, where we use the stratification of these networks and show that the effective resistances between a given node such as $α$ and all of the nodes $β$ belonging to the same stratum with respect to $α$ ($R_{αβ^{(m)}}$, $β$ belonging to the $m$-th stratum with respect to the $α$) are the same. Then, based on the spectral techniques, an analytical formula for effective resistances $R_{αβ^{(m)}}$ such that $L^{-1}_{αα}=L^{-1}_{ββ}$ (those nodes $α$, $β$ of the network such that the network is symmetric with respect to them) is given in terms of the first and second orthogonal polynomials associated with the network, where $L^{-1}$ is the pseudo-inverse of the Laplacian of the network. From the fact that in distance-regular networks, $L^{-1}_{αα}=L^{-1}_{ββ}$ is satisfied for all nodes $α,β$ of the network, the effective resistances $R_{αβ^{(m)}}$ for $m=1,2,...,d$ ($d$ is diameter of the network which is the same as the number of strata) are calculated directly, by using the given formula.
description: 30 pages, 7 figures
Magnetohydrodynamic stability of magnetars in the ultrastrong field regime I: The core
Creators: name: Rau, Peter B.
name: Wasserman, Ira
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study magnetohydrodynamic stability of neutron star core matter composed of neutrons, protons and leptons threaded by a magnetar-strength magnetic field $10^{14}$--$10^{17}$ G, where quantum electrodynamical effects and Landau quantization of fermions are important. Stability is determined using the Friedman--Schutz formalism for the canonical energy of fluid perturbations, which we calculate for a magnetizable fluid with $H\neq B$. Using this and the Euler--Heisenberg--Fermi--Dirac Lagrangian for a strongly magnetized fluid of Landau-quantized charged fermions, we calculate the local stability criteria for a fluid slab as a stand-in for a segment of a neutron star core, accounting for magnetic and composition gradient buoyancy. The slab is threaded by a field orthogonal to the gravitational field, the Cartesian analogy to a toroidal field. We find that, for sufficiently strong fields $B\gtrsim10^{15}$ G, the magnetized fluid is unstable to a magnetosonic-type instability with growth times of order $10^{-3}$ s. The instability is triggered by sharp changes in the second-order field derivative of the Euler--Heisenberg--Fermi--Dirac Lagrangian which occur where additional Landau levels start being populated. These sharp changes are divergent at zero temperature, but are finite for nonzero temperature, so realistic neutron star core temperatures $5\times10^7$ K$
description: 28 pages. Matches published version, including supplemental material
FORMATION OF PROGRAMS FOR THE MODERNIZATION OF ECONOMIC SECTORS AND REGIONS OF THE COUNTRY DURING THE DEVELOPMENT OF THE EIGHTH TECHNOLOGICAL ORDER
Creators: name: Glushchenko, V.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: country region
economic sector
forecasting
modernization
system model
business plan
synthesis
analysis
idea
company
eighth technological order

description: The subject of the article is formation of programs for the modernization of economic sectors and regions of the country during the development of the eighth technological order (ETO); the object of the article is the 8th technological order in the economy of the country; the purpose of the work is to reduce the risks of sustainable development of the economy and society during the formation of the eighth technological order; to achieve this goal, the following tasks are solved: synthesis of a systematic and descriptive model of the 8th technological order (ETO); formation of sectoral system models of scientific and technological development (fuel and energy complex, military-technical sphere, country region); formation of a project model of organizations' activities; comparative analysis of process and subject models of organization functioning; analysis of factors and methods of synthesis of innovative ideas during the formation of the 8th technological order; comparative analysis of three conceptual approaches in the modernization of the economy (theory of technological orders; ecosystem approach; concepts of convergent (nature-like) technologies); description of methods for modeling innovative projects; study of methods for forming an innovative project business plan; scientific methods in the article are historical analysis; theory of technological orders, theory of forecasting and planning, heuristic synthesis, modeling, logical and structural analysis of projects, expert assessments; scientific novelty of the article is determined by: development of methods for forecasting the processes of modernization of economic sectors and regions of the country; comparative analysis of three concepts of modernization (theory of technological orders; ecosystem approach; the concept of the development of nature-like technologies); the development of a conceptual approach to the modernization of large technological systems within the framework of the theory of technological orders
Gravitational multipole moments for asymptotically de Sitter spacetimes
Creators: name: Chakraborty, Sumanta
name: Hoque, Sk Jahanur
name: Oliveri, Roberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We provide a prescription to compute the gravitational multipole moments of compact objects for asymptotically de Sitter spacetimes. Our prescription builds upon a recent definition of the gravitational multipole moments in terms of Noether charges associated to specific vector fields, within the residual harmonic gauge, dubbed multipole symmetries. We first derive the multipole symmetries for spacetimes which are asymptotically de Sitter; we also show that these symmetry vector fields eliminate the non-propagating degrees of freedom from the linearized gravitational wave equation in a suitable gauge. We then apply our prescription to the Kerr-de Sitter black hole and compute its multipole structure. Our result recovers the Geroch-Hansen moments of the Kerr black hole in the limit of vanishing cosmological constant.
description: 35 pages, 1 figure, minor changes, version accepted for publication in PRD
Exact fluctuating hydrodynamics of active lattice gases -- Typical fluctuations
Creators: name: Agranov, Tal
name: Ro, Sunghan
name: Kafri, Yariv
name: Lecomte, Vivien
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We extend recent results on the exact hydrodynamics of a system of diffusive active particles displaying a motility-induced phase separation to account for typical fluctuations of the dynamical fields. By calculating correlation functions exactly in the homogeneous phase, we find that two macroscopic length scales develop in the system. The first is related to the diffusive length of the particles and the other to the collective behavior of the particles. The latter diverges as the critical point is approached. Our results show that the critical behavior of the model in one dimension belongs to the universality class of a mean-field Ising model, both for static and dynamic properties, when the thermodynamic limit is taken in a specified manner. The results are compared to the critical behavior exhibited by the ABC model. In particular, we find that in contrast to the ABC model the density large deviation function, at its Gaussian approximation, does not contain algebraically decaying interactions but is of a finite, macroscopic, extent which is dictated by the diverging correlation length.
description: 17 pages, 6 figures
Deterministic spatial search using alternating quantum walks
Creators: name: Marsh, S.
name: Wang, J. B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper examines the performance of spatial search where the Grover diffusion operator is replaced by continuous-time quantum walks on a class of interdependent networks. We prove that for a set of optimal quantum walk times and marked vertex phase shifts, a deterministic algorithm for structured spatial search is established that finds the marked vertex with 100% probability. This improves on the original spatial search algorithm on the same class of graphs, which we show can only amplify to 50% probability. Our method uses $\left\lceil\fracπ{2\sqrt{2}}\sqrt{N}\right\rceil$ marked vertex phase shifts for an $N$-vertex graph, making it comparable with Grover's algorithm for unstructured search. It is expected that this new framework can be readily extended to deterministic spatial search on other families of graph structures.
description: 10 pages, 8 figures
Additional file 12 of Profile of chimeric RNAs and TMPRSS2-ERG e2e4 isoform in neuroendocrine prostate cancer
Creators: name: Wang, Qiong
name: Chen, Junxiu
name: Singh, Sandeep
name: Xie, Zhongqiu
name: Qin, Fujun
name: Shi, Xinrui
name: Cornelison, Robert
name: Li, Hui
name: Huang, Hai
Publisher: name: figshare
Year: 2022
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 12: Table S5. The sequences of primers for TMPRSS2-ERG (e1e4) and TMPRSS2-ERG (e2e4).
Handouts: Introduction to Cryptography
Creators: name: Beznosov, Konstantin
Publisher: name: Zenodo
Year: 2005
Subjects: cryptography
probabilistic encryption
Identity-Based Public-Key Cryptography
Fair Coin Flipping
Key Escrow
Zero Knowledge Interactive Proof Systems
General Computer Security

description: Outline: - Probabilistic encryption  - Identity-Based Public-Key Cryptography  - Fair Coin Flipping Using Public-Key Cryptography  - Fair Cryptosystems (Key Escrow)  - Zero Knowledge Interactive Proof Systems
Interplay between hysteresis and nonlocality during onset and arrest of flow in granular materials
Creators: name: Mowlavi, Saviz
name: Kamrin, Ken
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The jamming transition in granular materials is well-known for exhibiting hysteresis, wherein the level of shear stress required to trigger flow is larger than that below which flow stops. Although such behavior is typically modeled as a simple non-monotonic flow rule, the rheology of granular materials is also nonlocal due to cooperativity at the grain scale, leading for instance to increased strengthening of the flow threshold as system size is reduced. We investigate how these two effects - hysteresis and nonlocality - couple with each other by incorporating non-monotonicity of the flow rule into the nonlocal granular fluidity (NGF) model, a nonlocal constitutive model for granular flows. By artificially tuning the strength of nonlocal diffusion, we demonstrate that both ingredients are key to explaining certain features of the hysteretic transition between flow and arrest. Finally, we assess the ability of the NGF model to quantitatively predict material behavior both around the transition and in the flowing regime, through stress-driven discrete element method (DEM) simulations of flow onset and arrest in various geometries. Along the way, we develop a new methodology to compare deterministic model predictions with the stochastic behavior exhibited by the DEM simulations around the jamming transition.
description: 17 pages, 9 figures
New results on vacuum fluctuations: Accelerated detector versus inertial detector in a quantum field
Creators: name: Wang, I-Chin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the interaction between a moving detector and a quantum field, especially about how the trajectory of the detector would affect the vacuum fluctuations when the detector is moves in a quantum field (the Unruh effect). We focus on two moving detectors system for future application in quantum teleportation. We find that the rajectory of a uniformly accelerated detector in Rindler space cannot be extended to a trajectory in which a detector moves at constant velocity. Based on our previous work, we redo the calculations and find that a term is missing from the past calculations, and we also find that there are some restrictions on the values for the parameters in the solutions. In addition, without inclusion of the missing term, the variance from the quantum field for the inertial detector will be zero and is unlikely in such a system. When all these points are combined, there is a difference in the two-point correlation function between the inertial detector and the accelerated detector in the early-time region. The influence of proper acceleration can be seen in the two-point correlation functions. This might play a role in the quantum teleportation process and be worth studying thoroughly.
description: 29 pages, 11 figures
Dynamical and energetic instabilities in multi-component Bose-Einstein condensates in optical lattices
Creators: name: Ruostekoski, J.
name: Dutton, Zachary
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study dynamical and energetic instabilities in the transport properties of Bloch waves for atomic multi-component Bose-Einstein condensates in optical lattices in the tight-binding limit. We obtain stability criteria analytically, as a function of superfluid velocities and interaction parameters, in several cases for two-component and spinor condensates. In the two-species case we find that the presence of the other condensate component can stabilize the superfluid flow of an otherwise unstable condensate and that the free space dynamical miscibility condition of the two species can be reversed by tuning the superfluid flow velocities. In spin-1 condensates, we find the steady-state Bloch wave solutions and characterize their stability criteria. We find generally more regions of dynamical instability arise for the polar than for the ferromagnetic solutions. In the presence of magnetic Zeeman shifts, we find a richer variety of condensate solutions and find that the linear Zeeman shift can stabilize the superfluid flow in several cases of interest.
description: 17 pages, 12 figures. Submitted to Phys. Rev. A
Accelerating parameter estimation of gravitational waves from compact binary coalescence using adaptive frequency resolutions
Creators: name: Morisaki, Soichiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Bayesian parameter estimation of gravitational waves from compact binary coalescence (CBC) typically requires more than millions of evaluations of computationally expensive template waveforms. We propose a technique to reduce the cost of waveform generation by exploiting the chirping behavior of CBC signal. Our technique does not require waveforms at all frequencies in the frequency range used in the analysis, and does not suffer from the fixed cost due to the upsampling of waveforms. Our technique speeds up the parameter estimation of typical binary neutron star signal by a factor of $\mathcal{O}(10)$ for the low-frequency cutoff of $20\,\mathrm{Hz}$, and $\mathcal{O}(10^2)$ for $5\,\mathrm{Hz}$. It does not require any offline preparations or accurate estimates of source parameters provided by detection pipelines.
description: 13 pages, 6 figures
Modeling transcription factor binding events to DNA using a random walker/jumper representation on a 1D/2D lattice with different affinity sites
Creators: name: Rezania, Vahid
name: Tuszynski, Jack
name: Hendzel, Michael
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: Surviving in a diverse environment requires corresponding organism responses. At the cellular level, such adjustment relies on the transcription factors (TFs) which must rapidly find their target sequences amidst a vast amount of non-relevant sequences on DNA molecules. Whether these transcription factors locate their target sites through a 1D or 3D pathway is still a matter of speculation. It has been suggested that the optimum search time is when the protein equally shares its search time between 1D and 3D diffusions. In this paper, we study the above problem using a Monte Carlo simulation by considering a very simple physical model. A 1D strip, representing a DNA, with a number of low affinity sites, corresponding to non-target sites, and high affinity sites, corresponding to target sites, is considered and later extended to a 2D strip. We study the 1D and 3D exploration pathways, and combinations of the two modes by considering three different types of molecules: a walker that randomly walks along the strip with no dissociation; a jumper that represents dissociation and then re-association of a TF with the strip at later time at a distant site; and a hopper that is similar to the jumper but it dissociates and then re-associates at a faster rate than the jumper. We analyze the final probability distribution of molecules for each case and find that TFs can locate their targets fast enough even if they spend 15% of their search time diffusing freely in the solution. This indeed agrees with recent experimental results obtained by Elf et al. 2007 and is in contrast with theoretical expectation.
description: 24 pages, 9 figures
HIPAA and CPR Architecture
Creators: name: Beznosov, Konstantin
Publisher: name: Zenodo
Year: 2005
Subjects: HIPAA
Computerized Patient Record
CPR security
enterprise security
General Computer Security

description: The presentation that describes Health Insurance Portability and Accountability Act (HIPAA) from the perspective of the Computerized Patient Record (CPR) Architecture.  Outline:  • Main risks in CPR related to security  • HIPAA and its role in CPR risks  – Brief overview  – Related [proposed] regulations  • Projects related to CPR security  • What CORBA security covers in HIPAArelated security requirements and what it does not
Retired A Stars and Their Companions: Exoplanets Orbiting Three Intermediate-Mass Subgiants
Creators: name: Johnson, John A.
name: Fischer, Debra A.
name: Marcy, Geoffrey W.
name: Wright, Jason T.
name: Driscoll, Peter
name: Butler, R. P.
name: Hekker, Saskia
name: Reffert, Sabine
name: Vogt, Steven S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report precision Doppler measurements of three intermediate-mass subgiants from Lick and Keck Observatories. All three stars show variability in their radial velocities consistent with planet-mass companions in Keplerian orbits. We find a planet with a minimum mass of 2.5 Mjup in a 351.5 day orbit around HD 192699, a planet with a minimum mass of 2.0 Mjup in a 341.1 day orbit around HD 210702, and a planet with a minimum mass of 0.61 Mjup in a 297.3 day orbit around HD 175541. Stellar mass estimates from evolutionary models indicate that all of these stars were formerly A-type dwarfs with masses ranging from 1.65 to 1.85 Msun. These three long-period planets would not have been detectable during their stars' main-sequence phases due to the large rotational velocities and stellar jitter exhibited by early-type dwarfs. There are now 9 "retired" (evolved) A-type stars (Mstar > 1.6 Msun) with known planets. All 9 planets orbit at distances a \geq 0.78 AU, which is significantly different than the semimajor axis distribution of planets around lower-mass stars. We examine the possibility that the observed lack of close-in planets is due to engulfment by their expanding host stars, but we find that this explanation is inadequate given the relatively small stellar radii of K giants (Rstar < 32 Rsun = 0.15 AU) and subgiants (Rstar < 7 Rsun = 0.03 AU). Instead, we conclude that planets around intermediate-mass stars reside preferentially beyond ~0.8 AU, which may be a reflection of different formation and migration histories of planets around A-type stars.
description: 31 pages, 9 figures, 6 tables, ApJ accepted, corrected minor typos
Generators and Relations for Un(Z[1/2,i])
Creators: name: Bian, Xiaoning
name: Selinger, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Consider the universal gate set for quantum computing consisting of the gates X, CX, CCX, omega^dagger H, and S. All of these gates have matrix entries in the ring Z[1/2,i], the smallest subring of the complex numbers containing 1/2 and i. Amy, Glaudell, and Ross proved the converse, i.e., any unitary matrix with entries in Z[1/2,i] can be realized by a quantum circuit over the above gate set using at most one ancilla. In this paper, we give a finite presentation by generators and relations of U_n(Z[1/2,i]), the group of unitary nxn-matrices with entries in Z[1/2,i].
description: In Proceedings QPL 2021, arXiv:2109.04886
Elastically-isotropic open-cell minimal surface shell lattices with superior stiffness via variable thickness design
Creators: name: Ma, Qingping
name: Zhang, Lei
name: Ding, Junhao
name: Qu, Shuo
name: Fu, Jin
name: Zhou, Mingdong
name: Fu, Ming Wang
name: Song, Xu
name: Wang, Michael Yu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Triply periodic minimal surface (TPMS) shell lattices are attracting increasingly attention due to their unique combination of geometric and mechanical properties, and their open-cell topology. However, uniform thickness TPMS shell lattices are usually anisotropic in stiffness, namely having different Young's moduli along different lattice directions. To reduce the elastic anisotropy, we propose a family of variable thickness TPMS shell lattices with isotropic stiffness designed by a strain energy-based optimization algorithm. The optimization results show that all the six selected types of TPMS lattices can be made to achieve isotropic stiffness by varying the shell thickness, among which N14 can maintain over 90% of the Hashin-Shtrikman upper bound of bulk modulus. All the optimized shell lattices exhibit superior stiffness properties and significantly outperform elastically-isotropic truss lattices of equal relative densities. Both uniform and optimized types of N14 shell lattices along [100], [110] and [111] directions are fabricated by the micro laser powder bed fusion techniques with stainless steel 316L and tested under quasi-static compression loads. Experimental results show that the elastic anisotropy of the optimized N14 lattices is reduced compared to that of the uniform ones. Large deformation compression results reveal different failure deformation behaviors along different directions. The [100] direction shows a layer-by-layer plastic buckling failure mode, while the failures along [110] and [111] directions are related to the shear deformation. The optimized N14 lattices possess a reduced anisotropy of plateau stresses and can even attain nearly isotropic energy absorption capacity.
description: 16 figures, 6 tables, 59 references
Step-by-Step Guide to National Energy System Modelling with OSeMOSYS
Creators: name: Plazas-Niño, Fernando
Publisher: name: Zenodo
Year: 2024

description: This repository provides a step-by-step guide for creating a fully functional OSeMOSYS model of a country. The project aims to develop a comprehensive understanding of how to perform national energy system modelling using a free and open-source energy planning tool. By following and developing the seven proposed hands-on exercises, students will be able to design a baseline energy system model for scenario analysis in the context of sustainable development and decarbonization. This material was previously part of an Energy System Analysis course in an Electrical Engineering Master's program, proving to be a valuable resource for developing university classes, application cases, and research projects.
Human Factor in Security Administration: Brainstorming the Research Directions
Creators: name: Beznosov, Konstantin
Publisher: name: Zenodo
Year: 2005
Subjects: usable security administration ;usable security; HOT Admin

description: Although usability has been acknowledged by the security community as one of the design goals back in 1970s, there is dearth of applications of HCI methods to the domain of computer security in general and security administration in particular. This lack of research attention even became a subject of a journal publication. HCI and security researchers are merely starting to build a network of interested people and explore opportunities for collaboration. There was only one published attempt toward addressing usability in security administration of distributed applications. The work was concerned mostly with evaluating the administrative GUI usability by applying some HCI techniques. During this session, I will briefly describe the problem domain of security administration usability and sketch some ideas for research, in the hope of promoting a discussion on the subject and identifying points and directions for future cross-disciplinary collaboration.
Model for curvature-driven pearling instability in membranes
Creators: name: Campelo, F.
name: Hernandez-Machado, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: A phase-field model for dealing with dynamic instabilities in membranes is presented. We use it to study curvature-driven pearling instability in vesicles induced by the anchorage of amphiphilic polymers on the membrane. Within this model, we obtain the morphological changes reported in recent experiments. The formation of a homogeneous pearled structure is achieved by consequent pearling of an initial cylindrical tube from the tip. For high enough concentration of anchors, we show theoretically that the homogeneous pearled shape is energetically less favorable than an inhomogeneous one, with a large sphere connected to an array of smaller spheres.
description: Accepted for publication in Phys. Rev. Lett