cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
[2017] Staffing for Effective Digital Preservation 2017: An NDSA Report
Creators: name: Kussmann, Carol
name: Atkins, Winston
name: Kim, Katherine
name: Reich, Aliya
Publisher: name: OSF
Year: 2016

description: The 2017 Digital Preservation Staffing Survey provides a useful snapshot of the way digital preservation is accomplished in 2017 and how its practitioners feel about the effectiveness of their current organizational structures. It also builds on the 2012 survey and begins to establish data with which the digital preservation community can identify trends in staffing in the field.
Symmetry energy from nuclear multifragmentation
Creators: name: Mallik, Swagata
name: Chaudhuri, Gargi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The ratio of symmetry energy coefficient to temperature $C_{sym}/T$ is extracted from different prescriptions using the isotopic as well as the isobaric yield distributions obtained in different projectile fragmentation reactions. It is found that the values extracted from our theoretical calculation agree with those extracted from the experimental data but they differ very much from the input value of the symmetry energy used. The best possible way to deduce the value of the symmetry energy coefficient is to use the fragment yield at the breakup stage of the reaction and it is better to use the grand canonical model for the fragmentation analysis. This is because the formulas that are used for the deduction of the symmetry energy coefficient are all derived in the framework of the grand canonical ensemble which is valid only at the break-up (equilibrium) condition. The yield of "cold" fragments either from the theoretical models or from experiments when used for extraction of the symmetry energy coefficient using these prescriptions might lead to the wrong conclusion.
description: 6 pages, 4 figures
Supplementary document for High-repetition-rate pulse generation via self-sustaining cross-gain modulation in semiconductor-based laser - 6694378.pdf
Creators: name: Smirnov, Sergey
name: Nyushkov, B.N.
name: Ivanenko, Aleksey
name: Bednyakova, Anastasia
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplementary
Infinitely Many Carmichael Numbers in Arithmetic Progressions
Creators: name: Wright, Thomas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: In this paper, we prove that for any $a,M\in \mathbb N$ with $(a,M)=1$, there are infinitely many Carmichael numbers $m$ such that $m\equiv a$ mod $M$
description: To appear in the Bulletin of the London Mathematical Society
Optimal quantum speed for mixed states
Creators: name: Naderzadeh-ostad, Ashraf
name: Akhtarshenas, Seyed Javad
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The question of how fast a quantum state can evolve is considered. Using the definition of squared speed based on the Euclidean distance given in [Phys. Rev. Research, {\bf 2}, 033127 (2019)], we present a systematic framework to obtain the optimal speed of a $d$-dimensional system evolved unitarily under a time-independent Hamiltonian. Among the set of mixed quantum states having the same purity, the optimal state is obtained in terms of its purity parameter. We show that for an arbitrary $d$, the optimal state is represented by a $X$-state with an additional property of being symmetric with respect to the secondary diagonal. For sufficiently low purities for which the purity exceeds the purity of maximally mixed state $\Id/d$ by at most $2/d^2$, the only nonzero off-diagonal entry of the optimal state is $\varrho_{1d}$, corresponding to the transition amplitude between two energy eigenstates with minimum and maximum eigenvalues, respectively. For larger purities, however, whether or not the other secondary diameter entries $\varrho_{i,d-i+1}$ take nonzero values depends on their relative energy gaps $|E_{d-i+1}-E_{i}|$. The effects of coherence and entanglement, with respect to the energy basis, are also examined and found that for optimal states both resources are monotonic functions of purity, so they can cause speed up quantum evolution leading to a smaller quantum speed limit. Our results show that although the coherence of the states is responsible for the speed of evolution, only the coherence caused by some off-diagonal entries located on the secondary diagonal play a role in the fastest states.
description: 14 pages, 6 figures, References updated
Statistics of charge transport and unconventional time ordering
Creators: name: Beaud, Vincent
name: Graf, Gian Michele
name: Lebedev, Andrei V.
name: Lesovik, Gordey B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The statistics of charge transport across a tunnel junction with energy-dependent scattering is investigated. A model with quadratic dispersion relation is discussed in general and, independently, in the two limiting cases of a large detector and of a linear dispersion relation. The measurement of charge takes place according to various protocols. It is found that, as a rule, the statistics is expressed by means of time-ordered current correlators, differing however from the conventional ones in the ordering prescription. Nevertheless binomial statistics is confirmed in all cases.
description: 30 pages, 2 figures
Volatility term structures in commodity markets
Creators: name: Hollstein, Fabian
name: Prokopczuk, Marcel
name: Würsig, Christoph
Publisher: name: Hoboken, NJ : Wiley-Blackwell Publishing, Inc.
Year: 2019
Subjects: subject: commodities
subject: information transmission
subject: spillovers
subject: volatility term structure
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: In this study, we comprehensively examine the volatility term structures in commodity markets. We model state-dependent spillovers in principal components (PCs) of the volatility term structures of different commodities, as well as that of the equity market. We detect strong economic links and a substantial interconnectedness of the volatility term structures of commodities. Accounting for intra-commodity-market spillovers significantly improves out-of-sample forecasts of the components of the volatility term structure. Spillovers following macroeconomic news announcements account for a large proportion of this forecast power. There thus seems to be substantial information transmission between different commodity markets.
Which attributes of whole genome sequencing tests are most important to the general population? Results from a German preference study
Creators: name: Plöthner, Marika
name: Schmidt, Katharina
name: Schips, Clarissa
name: Damm, Kathrin
Publisher: name: Macclesfield : Dove Medical Press
Year: 2018
Subjects: subject: Discrete choice experiment
subject: Genetic testing
subject: Latent class model
subject: Preferences
subject: Whole genome sequencing
subject: Willingness to pay
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Objective: The aim of this study was to identify the preferences for whole genome sequencing (WGS) tests without genetic counseling. Methods: A discrete choice experiment was conducted where participants chose between two hypothetical alternatives consisting of the following attributes: test accuracy, test costs, identified diseases, probability of disease occurrence, and data access. People from the general German population aged ≥18 years were eligible to participate in the survey. We estimated generalized linear mixed effects models, latent class mixed-logit models, and the marginal willingness to pay. Results: Three hundred and one participants were included in the final analysis. Overall, the most favored WGS testing attributes were 95% test accuracy, report of severe hereditary diseases and 40% probability of disease development, test costs of €1,000, and access to test results for researchers. Subgroup analysis, however, showed differences in these preferences between males and females. For example, males preferred reporting of results at a 10% probability of disease development and females preferred reporting of results at a 40% probability. The test cost, participant’s educational level, and access to data influenced the willingness to participate in WGS testing in reality. Conclusion: The German general population was aware of the importance of genetic research and preferred to provide their own genetic data for researchers. However, among others, the reporting of results with a comparatively relatively low probability of disease development at a level of 40%, and the test accuracy of 95% had a high preference. This shows that the results and consequences of WGS testing without genetic counseling are hard to assess for individuals. Therefore, WGS testing should be supported by qualified genetic counseling, where the attributes and consequences are explained. © 2018 Plöthner et al.
Squeezing of a movable mirror via the dissipative optomechanical coupling
Creators: name: Gu, Wen-ju
name: Li, Gao-xiang
name: Yang, Ya-ping
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the squeezing for a movable mirror in the dissipative optomechanics in which the oscillating mirror modulates both the resonance frequency and the linewidth of the cavity mode. Via feeding a much weaker broadband squeezed vacuum light accompanying the coherent driving laser field into the cavity, the master equation for the cavity-mirror system is derived by following the general reservoir theory based on the density operator in which the reservoir variables are adiabatically eliminated by using the reduced density operator for the system in the interaction picture. When the mirror is weakly coupled to the cavity mode, we find that under the conditions of laser cooling to the ground state, the driven cavity field can effectively perform as a squeezed vacuum reservoir for the movable mirror via utilizing the completely destructive interference of quantum noise, and thus the efficient transfer of squeezing from the light to the movable mirror occurs, which is irrespective of the ratio between the cavity damping rate and the mechanical frequency. When the mirror is moderately coupled to the cavity mode, the photonic excitation can preclude the completely destructive interference of quantum noise, and as a consequence, the mirror deviates from the ideal squeezed state.
Magnetoelectric susceptibility tensor of multiferroic TbMnO3 with cycloidal antiferromagnetic structure in external field
Creators: name: Bychkov, Igor V.
name: Kuzmin, Dmitry A.
name: Lamekhov, Sergey J.
name: Shavrov, Vladimir G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Magnetoelectric, dielectric and magnetic susceptibility tensors of multiferroic TbMnO3 with cycloidal antiferromagnetic structure in external electric and magnetic fields have been investigated with taking into account dynamics of spin, electro-dipole and acoustic subsystems. All components of tensors depend on values of external electric and magnetic fields. The possibility of control of electrodynamic properties of multiferroic TbMnO3 with cycloidal antiferromagnetic structure by external electric and magnetic fields has been shown. The resonant interaction of spin, electro-dipole, electromagnetic and acoustic waves in such material is observed.
description: 9 pages, 1 figure, accepted in Journal of Applied Physics
Unemployment, health, and education of HIV-infected males in Germany
Creators: name: Groß, Mona
name: Herr, Annika
name: Hower, Martin
name: Kuhlmann, Alexander
name: Mahlich, Jörg
name: Stoll, Matthias
Publisher: name: Basel : Birkhauser Verlag AG
Year: 2016
Subjects: subject: AIDS/HIV
subject: Antiretroviral therapy
subject: Frailty
subject: Job loss
subject: Unemployment
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie

description: Objectives: The present study on people living with HIV/AIDS (PLWHA) identifies socio-demographic and health-related factors corresponding with their labour market participation. Methods: The study sample bases on a German observational sub-study of 527 male PLWHA. The present analysis is restricted to male PLWHA in working age. By means of a multivariate regression, we identify factors that contribute to unemployment and job loss. Results: The probability to be unemployed is significantly negatively correlated with age above 40 years and graduation from university and positively correlated with problems with daily activities (frailty) and disease severity (CDC stage C). The probability of employment loss during the 2-year observation period is significantly negatively correlated with the educational level, whereas frailty and hepatitis C (HCV) co-infection increase the odds of employment loss. Conclusions: As problems to manage daily activities and disease progression are associated with unemployment, an effective HIV treatment is an important cornerstone for employment. This is also true for the management of comorbidities, such as HCV co-infection, which also negatively affects employment status in our study.
Topological Phase Transitions of Generalized Brillouin Zone
Creators: name: Verma, Sonu
name: Park, Moon Jip
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: It has been known that the bulk-boundary correspondence (BBC) of the non-Hermitian skin effect is characterized by the topology of the complex eigenvalue spectra, while the topology of the wave function gives rise to Hermitian BBC with conventional boundary modes. In this work, we go beyond the known description of the non-Hermitian topological phase by discovering a new type of BBC that appears in generalized boundary conditions. The generalized Brillouin zone (GBZ) possesses non-trivial topological structures in the intermediate boundary condition between open and periodic boundary conditions. Unlike the conventional BBC, the topological phase transition is characterized by the generalized momentum touching of GBZ, which manifests as exceptional points. As a realization of our proposal, we suggest the non-reciprocal Kuramoto oscillator lattice, where the phase slips accompany the exceptional points as a signature of such topological phase transition. Our work establishes an understanding of non-Hermitian topological matter by complementing the non-Hermitian BBC as a general foundation of the non-Hermitian topological systems.
description: 43 pages, 23 figures
Opposite parity fermion mixing and baryons $1/2^{\pm}$
Creators: name: Kaloshin, A. E.
name: Kobeleva, E. A.
name: Lomov, V. P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We develop a variant of $K$-matrix, which includes the effect of opposite parity fermions (OPF) mixing, and apply it for description of $πN$ partial waves $S_{11}$ and $P_{11}$. OPF-mixing leads to appearance of negative energy poles in $K$-matrix and restoration of MacDowell symmetry, relating two partial waves. Joint analysis of PWA results for $S_{11}$ and $P_{11}$ confirms significance of this effect.
description: 11 pages, 8 figures
Therapy preferences of patients with lung and colon cancer: A discrete choice experiment
Creators: name: Schmidt, Katharina
name: Damm, Kathrin
name: Vogel, Arndt
name: Golpon, Heiko
name: Manns, Michael P.
name: Welte, Tobias
name: Schulenburg, Johann-Matthias Graf Von Der
Publisher: name: Macclesfield : Dove Medical Press
Year: 2017
Subjects: subject: Colorectal cancer
subject: Germany
subject: Latent class model
subject: Lung cancer
subject: Multi-criteria decision making
subject: Patient preferences
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Objectives: There is increasing interest in studies that examine patient preferences to measure health-related outcomes. Understanding patients’ preferences can improve the treatment process and is particularly relevant for oncology. In this study, we aimed to identify the subgroup-specific treatment preferences of German patients with lung cancer (LC) or colorectal cancer (CRC). Methods: Six discrete choice experiment (DCE) attributes were established on the basis of a systematic literature review and qualitative interviews. The DCE analyses comprised generalized linear mixed-effects model and latent class mixed logit model. Results: The study cohort comprised 310 patients (194 with LC, 108 with CRC, 8 with both types of cancer) with a median age of 63 (SD =10.66) years. The generalized linear mixed-effects model showed a significant (P<0.05) degree of association for all of the tested attributes. “Strongly increased life expectancy” was the attribute given the greatest weight by all patient groups. Using latent class mixed logit model analysis, we identified three classes of patients. Patients who were better informed tended to prefer a more balanced relationship between length and health-related quality of life (HRQoL) than those who were less informed. Class 2 (LC patients with low HRQoL who had undergone surgery) gave a very strong weighting to increased length of life. We deduced from Class 3 patients that those with a relatively good life expectancy (CRC compared with LC) gave a greater weight to moderate effects on HRQoL than to a longer life. Conclusion: Overall survival was the most important attribute of therapy for patients with LC or CRC. Differences in treatment preferences between subgroups should be considered in regard to treatment and development of guidelines. Patients’ preferences were not affected by sex or age, but were affected by the cancer type, HRQoL, surgery status, and the main source of information on the disease.
Eine heidnische Grabstätte aus römischer Zeit bei Besseringen an der Saar
Creators: name: Lohde, Ludwig
Publisher: name: Bonner Jahrbücher
Year: 2017

description: [nicht vorhanden / not available]
description: Bonner Jahrbücher, Bd. 41 (1866): Jahrbücher des Vereins von Alterthumsfreunden im Rheinlande
A Missing Partner Model With 24-plet Breaking SU(5)
Creators: name: Zhang, Da-Xin
name: Zheng, Jun-hui
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We give a missing partner model using 24-plet instead of 75-plet to break the SU(5) symmetry. Fermion masses and mixing are generated through the Georgi-Jarlskog mechanism. The model is constructed at renormalizable level at very high energy. The perturbative region is extended for the unification gauge coupling. Constrains by proton decay is also satisfied.
description: 18 pages, 6 figures
Coupling finite and boundary element methods to solve the Poisson--Boltzmann equation for electrostatics in molecular solvation
Creators: name: Bosy, Michal
name: Scroggs, Matthew W.
name: Betcke, Timo
name: Burman, Erik
name: Cooper, Christopher D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: G.m; J.2
subject: 35

description: The Poisson--Boltzmann equation is widely used to model electrostatics in molecular systems. Available software packages solve it using finite difference, finite element, and boundary element methods, where the latter is attractive due to the accurate representation of the molecular surface and partial charges, and exact enforcement of the boundary conditions at infinity. However, the boundary element method is limited to linear equations and piecewise constant variations of the material properties. In this work, we present a scheme that couples finite and boundary elements for the Poisson--Boltzmann equation, where the finite element method is applied in a confined {\it solute} region, and the boundary element method in the external {\it solvent} region. As a proof-of-concept exercise, we use the simplest methods available: Johnson--Nédélec coupling with mass matrix and diagonal preconditioning, implemented using the Bempp-cl and FEniCSx libraries via their Python interfaces. We showcase our implementation by computing the polar component of the solvation free energy of a set of molecules using a constant and a Gaussian-varying permittivity. We validate our implementation against the finite difference code APBS (to 0.5\%), and show scaling from protein G B1 (955 atoms) up to immunoglobulin G (20\,148 atoms). For small problems, the coupled method was efficient, outperforming a purely boundary integral approach. For Gaussian-varying permittivities, which are beyond the applicability of boundary elements alone, we were able to run medium to large sized problems on a single workstation. Development of better preconditioning techniques and the use of distributed memory parallelism for larger systems remains an area for future work. We hope this work will serve as inspiration for future developments for molecular electrostatics with implicit solvent models.
Vehicle localization by lidar point correlation improved by change detection
Creators: name: Schlichting, Alexander
name: Brenner, Claus
Publisher: name: Göttingen : Copernicus GmbH
Year: 2016
Subjects: subject: Change detection
subject: Classification
subject: Correlation
subject: LiDAR
subject: Localization
subject: Mobile mapping
subject: Chemical detection
subject: Classification (of information)
subject: Correlation methods
subject: Decision trees
subject: Image matching
subject: Mapping
subject: Optical radar
subject: Remote sensing
subject: Signal detection
subject: Vehicles
subject: Change detection algorithms
subject: Classification algorithm
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie, Kartographie

description: LiDAR sensors are proven sensors for accurate vehicle localization. Instead of detecting and matching features in the LiDAR data, we want to use the entire information provided by the scanners. As dynamic objects, like cars, pedestrians or even construction sites could lead to wrong localization results, we use a change detection algorithm to detect these objects in the reference data. If an object occurs in a certain number of measurements at the same position, we mark it and every containing point as static. In the next step, we merge the data of the single measurement epochs to one reference dataset, whereby we only use static points. Further, we also use a classification algorithm to detect trees. For the online localization of the vehicle, we use simulated data of a vertical aligned automotive LiDAR sensor. As we only want to use static objects in this case as well, we use a random forest classifier to detect dynamic scan points online. Since the automotive data is derived from the LiDAR Mobile Mapping System, we are able to use the labelled objects from the reference data generation step to create the training data and further to detect dynamic objects online. The localization then can be done by a point to image correlation method using only static objects. We achieved a localization standard deviation of about 5 cm (position) and 0.06° (heading), and were able to successfully localize the vehicle in about 93 % of the cases along a trajectory of 13 km in Hannover, Germany.
Carex atrata
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: A. atrata X nana Cat. 198. DieAngabenvon derJungenalp,von Zermattund von Gletsch sind nachWilczekI.e. irrig. l: ColdeTanneverge(Briquet); Finive-Emosson(Coquoz).- 3:Kalte-WasseramSimplon (Christ 1916). - 4: Beim Halsensee im Binntal (P.).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Local Theory for 2-Functors on Path 2-Groupoids
Creators: name: Schreiber, Urs
name: Waldorf, Konrad
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Topology (math.GN)
subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: In this article we discuss local aspects of 2-functors defined on the path 2-groupoid of a smooth manifold; in particular, local trivializations and descent data. This is a contribution to a project that provides an axiomatic formulation of connections on (possibly non-abelian) gerbes in terms of 2-functors. The main result of this paper establishes the first part of this formulation: we prove an equivalence between the globally defined 2-functors and their locally defined descent data. The second part appears in a separate publication; there we prove equivalences between descent data, on one side, and various existing versions of gerbes with connection on the other side.
description: 47 pages. The content of this paper originally formed the Sections 1 and 2 of our paper "Connections on Non-Abelian Gerbes and their Holonomy" (arxiv:0808.1923)
Violaxanthin cycle kinetics analysed in vivo with resonance Raman spectroscopy
Creators: name: Koch, Matthias
name: Zagermann, Serge
name: Kniggendorf, Ann-Kathrin
name: Meinhardt-Wollweber, Merve
name: Roth, Bernhard
Publisher: name: Chichester : John Wiley and Sons Ltd
Year: 2017
Subjects: subject: Dunaliellasalina
subject: Kinetics
subject: Resonance Raman
subject: Stress adaptation
subject: Violaxanthin cycle
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Measuring the kinetics of the violaxanthin cycle imposes an experimental challenge. Traditionally, carotenoid analysis was carried out laboriously with high-performance liquid chromatography. In this work, we present the first in vivo approach to directly measure the kinetics of the violaxanthin cycle, using resonance Raman spectroscopy in combination with baseline correction and principal component analysis. Applying the new approach allows measuring thousands of data points as opposed to the few possible with chemical analysis over the course of a violaxanthin cycle kinetics experiment. In vivo analysis of the violaxanthin cycle is necessary to fully understand adaptation kinetics to varying light conditions, the knowledge of which is especially important for assessing the stress tolerance of plants in the wake of the increasing climate change. Three experiments on the green alga Dunaliella salina were performed, featuring both the light-to-dark and dark-to-light transitions response of the algae. This is the peer reviewed version of the following article: Koch, M. et al.: Violaxanthin cycle kinetics analysed in vivo with resonance Raman spectroscopy. In: Journal of Raman Spectroscopy (2017), which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/jrs.5102/abstract. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
A Unified Approach to Joint and Iterative Adaptive Interference Cancellation and Parameter Estimation for CDMA Systems in Multipath Channels
Creators: name: de Lamare, Rodrigo C.
name: Hjorungnes, Are
name: Sampaio-Neto, Raimundo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper proposes a unified approach to joint adaptive parameter estimation and interference cancellation (IC) for direct sequence code-division-multiple-access (DS-CDMA) systems in multipath channels. A unified framework is presented in which the IC problem is formulated as an optimization problem with extra degrees of freedom of an IC parameter vector for each stage and user. We propose a joint optimization method for estimating the IC parameter vector, the linear receiver filter front-end, and the channel along with minimum mean squared error (MMSE) expressions for the estimators. Based on the proposed joint optimization approach, we derive low-complexity stochastic gradient (SG) algorithms for estimating the desired parameters. Simulation results for the uplink of a synchronous DS-CDMA system show that the proposed methods significantly outperform the best known IC receivers.
description: 4 figures
Der Grabhügel von Molzbach
Creators: name: Holste, Fritz
name: Jorns, Werner
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2017

description: [nicht vorhanden / not available]
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 19, Nr. 1 (1935)
Versatile electric fields for the manipulation of ultracold NaK molecules
Creators: name: Gempel, M.W.
name: Hartmann, T.
name: Schulze, Torben A.
name: Voges, K.K.
name: Zenesini, Alessandro
name: Ospelkaus, Silke
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2016
Subjects: subject: atomtronics
subject: dipolar gases
subject: electrode geometry
subject: indium tin oxide
subject: ultracold atoms
subject: ultracold molecules
subject: Crystal lattices
subject: Dipole moment
subject: Electric fields
subject: Electrodes
subject: Ground state
subject: Indium
subject: Molecules
subject: Optical materials
subject: Tin
subject: Tin oxides
subject: Electrode geometries
subject: Indium tin oxide
subject: Ultracold atoms
subject: Ultracold molecules
subject: Optical lattices
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: In this paper, we present an electrode geometry for the manipulation of ultracold, rovibrational ground state NaK molecules. The electrode system allows to induce a dipole moment in trapped diatomic NaK molecules with a magnitude up to 68% of their internal dipole moment along any direction in a given two-dimensional plane. The strength, the sign and the direction of the induced dipole moment is therefore fully tunable. The maximal relative variation of the electric field over the trapping volume is below 10-6. At the desired electric field value of 10 kV cm-1 this corresponds to a deviation of 0.01 V cm-1. Furthermore, the possibility to create strong electric field gradients provides the opportunity to address molecules in single layers of an optical lattice. The electrode structure is made of transparent indium tin oxide and combines large optical access for sophisticated optical dipole traps and optical lattice configurations with the possibility to create versatile electric field configurations.
Sixfold improved single particle measurement of the magnetic moment of the antiproton
Creators: name: Nagahama, H.
name: Smorra, C.
name: Sellner, S.
name: Harrington, J.
name: Higuchi, T.
name: Borchert, M.J.
name: Tanaka, T.
name: Besirli, M.
name: Mooser, A.
name: Schneider, G.
name: Blaum, K.
name: Matsuda, Y.
name: Ospelkaus, C.
name: Quint, W.
name: Walz, J.
name: Yamazaki, Y.
name: Ulmer, S.
Publisher: name: London : Nature Publishing Group
Year: 2017
Subjects: subject: penning trap
subject: cpt
subject: lorentz
subject: system
subject: tests
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: Our current understanding of the Universe comes, among others, from particle physics and cosmology. In particle physics an almost perfect symmetry between matter and antimatter exists. On cosmological scales, however, a striking matter/antimatter imbalance is observed. This contradiction inspires comparisons of the fundamental properties of particles and antiparticles with high precision. Here we report on a measurement of the g-factor of the antiproton with a fractional precision of 0.8 parts per million at 95% confidence level. Our value /2=2.7928465(23) outperforms the previous best measurement by a factor of 6. The result is consistent with our proton g-factor measurement gp/2=2.792847350(9), and therefore agrees with the fundamental charge, parity, time (CPT) invariance of the Standard Model of particle physics. Additionally, our result improves coefficients of the standard model extension which discusses the sensitivity of experiments with respect to CPT violation by up to a factor of 20.
Das ältere Hochschloß in Pfalzel bei Trier
Creators: name: Kutzbach, Friedrich
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2017

description: [nicht erschienen / not available]
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 19, Nr. 1 (1935)
Volatile and light lithophile elements in high-anorthite plagioclase-hosted melt inclusions from Iceland
Creators: name: Neave, David A.
name: Hartley, Margaret E.
name: Maclennan, John
name: Edmonds, Marie
name: Thordarson, Thorvaldur
Publisher: name: London : Elsevier Ltd.
Year: 2017
Subjects: subject: Diffusion
subject: Iceland
subject: Magma mixing
subject: Plagioclase-hosted melt inclusions
subject: Primitive basalt
subject: Volatiles
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Melt inclusions formed during the early stages of magmatic evolution trap primitive melt compositions and enable the volatile contents of primary melts and the mantle to be estimated. However, the syn- and post-entrapment behaviour of volatiles in primitive high-anorthite plagioclase-hosted melt inclusions from oceanic basalts remains poorly constrained. To address this deficit, we present volatile and light lithophile element analyses from a well-characterised suite of nine matrix glasses and 102 melt inclusions from the 10 ka Grímsvötn tephra series (i.e., Saksunarvatn ash) of Iceland’s Eastern Volcanic Zone (EVZ). High matrix glass H2O and S contents indicate that eruption-related exsolution was arrested by quenching in a phreatomagmatic setting; Li, B, F and Cl did not exsolve during eruption. The almost uniformly low CO2 content of plagioclase-hosted melt inclusions cannot be explained by either shallow entrapment or the sequestration of CO2 into shrinkage bubbles, suggesting that inclusion CO2 contents were controlled by decrepitation instead. High H2O/Ce values in primitive plagioclase-hosted inclusions (182–823) generally exceed values expected for EVZ primary melts (∼∼180), and can be accounted for by diffusive H2O gain following the entrainment of primitive macrocrysts into evolved and H2O-rich melts a few days before eruption. A strong positive correlation between H2O and Li in plagioclase-hosted inclusions suggests that diffusive Li gain may also have occurred. Extreme F enrichments in primitive plagioclase-hosted inclusions (F/Nd = 51–216 versus ∼15 in matrix glasses) possibly reflect the entrapment of inclusions from high-Al/(Al + Si) melt pools formed by dissolution-crystallisation processes (as indicated by HFSE depletions in some inclusions), and into which F was concentrated by uphill diffusion since F is highly soluble in Al-rich melts. The high S/Dy of primitive inclusions (∼300) indicates that primary melts were S-rich in comparison with most oceanic basalts. Cl and B are unfractionated from similarly compatible trace elements, and preserve records of primary melt heterogeneity. Although primitive plagioclase-hosted melt inclusions from the 10 ka Grímsvötn tephra series record few primary signals in their volatile contents, they nevertheless record information about crustal magma processing that is not captured in olivine-hosted melt inclusions suites.
Eine Gotenfestung bei Sadowetz (Nordbulgarien)
Creators: name: Welkov, Ivan
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2017

description: [nicht erschienen / not available]
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 19, Nr. 2 (1935)
Quasi-Fermi liquid behavior in a one-dimensional system of interacting spinless fermions
Creators: name: Baktay, Joshua D.
name: Rozhkov, Alexander V.
name: Feiguin, Adrian E.
name: Rincon, Julian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present numerical evidence for a paradigm in one-dimensional interacting fermion systems, whose phenomenology has traits of both Luttinger liquids and Fermi liquids. This state, dubbed a quasi-Fermi liquid, possesses a discontinuity in its fermion occupation number at the Fermi momentum. The excitation spectrum presents particlelike quasiparticles and absence of holelike quasiparticles, giving rise instead to edge singularities. Such a state is realized in a one-dimensional spinless fermion lattice Hamiltonian by fine-tuning the interactions to a regime where they become irrelevant in the renormalization group sense. We show, using uniform infinite matrix products states and finite-entanglement scaling analysis, that the system ground state is characterized by a Luttinger parameter $K = 1$ and a discontinuous jump in the fermion occupation number. We support the characterization with calculations of the spectral function that show a particle-hole asymmetry reflected in the existence of well-defined Landau quasiparticles above the Fermi level and edge singularities without the associated quasiparticles below. These results indicate that the quasi-Fermi liquid paradigm can be realized beyond the low-energy perturbative realm.
description: 10+3 pages; 8+4 figures
title: Алгоритм адаптивной настройки параметров линейного дискретного фильтра с использованием нечеткой экспертной системы
Creators: name: ., А.В. Елисеев – д.т.н., доцент, вед. науч. сотрудник, ФГУП «РНИИРС» ФНПЦ К.В. Ануфриев – вед. инженер, ФГУП «РНИИРС» ФНПЦ Р.А. Погорелов – инженер, ФГУП «РНИИРС» ФНПЦ Д.Э. Рубайло – инженер, ФГУП «РНИИРС» ФНПЦ
Publisher: name: Издательство Радиотехника
Year: 2019

description: Постановка проблемы. В настоящее время в качестве носителей телекоммуникационного оборудования активно применяются летно-подъемные средства различного назначения, например, беспилотные летательные аппараты. Для радиомониторинга таких объектов необходимо выполнить их пространственную идентификацию на основе анализа траекторной информации, формируемой, как правило, линейным дискретным фильтром. В случае маневра летательного аппарата качество идентификации может значительно ухудшаться из-за увеличения динамической ошибки фильтра.
Цель. Разработать алгоритм адаптивной настройки параметров линейного дискретного фильтра к интенсивности маневра с использованием нечеткой экспертной системы для снижения динамической ошибки фильтрации траекторных измерений в условиях маневра летательного аппарата.
Результаты. Для обработки траекторных измерений в условиях маневра летательного аппарата предложено использовать адаптивный линейный дискретный «альфа-бета» фильтр. Для адаптации фильтра последовательно решены две задачи: обнаружение маневра и управление коэффициентом усиления фильтра. Обнаружение маневра выполнено на основе мажоритарного критерия «два из трех». Для управления коэффициентом усиления фильтра использована нечеткая экспертная система в виде множества нечетких логических правил. Представлена структурная схема адаптивного фильтра. Приведены результаты математического моделирования.
Практическая значимость. Алгоритм адаптивной настройки параметров линейного дискретного фильтра с использованием нечеткой экспертной системы в задаче слежения за параметрами движения летательного аппарата позволяет снизить динамическую ошибку фильтрации (в условиях проведенного математического моделирования на 40%).
Bilayer Protograph Codes for Half-Duplex Relay Channels
Creators: name: Van Nguyen, Thuy
name: Nosratinia, Aria
name: Divsalar, Dariush
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Despite encouraging advances in the design of relay codes, several important challenges remain. Many of the existing LDPC relay codes are tightly optimized for fixed channel conditions and not easily adapted without extensive re-optimization of the code. Some have high encoding complexity and some need long block lengths to approach capacity. This paper presents a high-performance protograph-based LDPC coding scheme for the half-duplex relay channel that addresses simultaneously several important issues: structured coding that permits easy design, low encoding complexity, embedded structure for convenient adaptation to various channel conditions, and performance close to capacity with a reasonable block length. The application of the coding structure to multi-relay networks is demonstrated. Finally, a simple new methodology for evaluating the end-to-end error performance of relay coding systems is developed and used to highlight the performance of the proposed codes.
description: Accepted in IEEE Trans. Wireless Comm
Ser y estar con adjetivos – significacion de las proposiciones
Creators: name: García De María, Javier
Publisher: name: Valencia : Universitat Politecnica de Valencia
Year: 2008
Subjects: subject: Foreign language
subject: Rhetorical question
subject: Verb
subject: Intentionality
subject: Adjective
subject: Argumentative
subject: Computer science
subject: Linguistics
subject: FOS: Languages and literature
subject: Communication
subject: Dewey Decimal Classification::400 | Sprache, Linguistik

description: Ser and estar: a difficult aspect of Spanish as a foreign language. This essay presents an approach that takes signification as guide line. On the one hand, the signification of ser and estar for their own cause; on the other hand the signification of the adjectives. The question is no longer what the meaning of a given adjective is with ser or with estar, but with which of the two verbs is it possible to express the unique meaning or each of the meanings of that adjective. Starting from this basis the approach considers first, the isolated meanings of the verbs and of the adjectives and, second, the resultant signification out of the relation between the two sides. If the meaning of a given adjective can be expressed by both verbs, the selection of the verb is determined by the intentionality of the speaker in the communicative context in which he negotiates. From this background on the syntactical constructions in which ser and estar appear are treated as propositions in the rhetorical and argumentative sense.
Macroscopic effect of quantum gravity: graviton, ghost and instanton condensation on horizon scale of the Universe
Creators: name: Marochnik, Leonid
name: Usikov, Daniel
name: Vereshkov, Grigory
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss a special class of quantum gravity phenomena that occur on the scale of the Universe as a whole at any stage of its evolution. These phenomena are a direct consequence of the zero rest mass of gravitons, conformal non-invariance of the graviton field, and one-loop finiteness of quantum gravity. The effects are due to graviton-ghost condensates arising from the interference of quantum coherent states. Each of coherent states is a state of gravitons and ghosts of a wavelength of the order of the horizon scale and of different occupation numbers. The state vector of the Universe is a coherent superposition of vectors of different occupation numbers. To substantiate the reliability of macroscopic quantum effects, the formalism of one-loop quantum gravity is discussed in detail. The theory is constructed as follows: Faddeev-Popov path integral in Hamilton gauge -> factorization of classical and quantum variables, allowing the existence of a self-consistent system of equations for gravitons, ghosts and macroscopic geometry -> transition to the one-loop approximation. The ghost sector corresponding to the Hamilton gauge ensures of one-loop finiteness of the theory off the mass shell. The Bogolyubov-Born-Green-Kirckwood-Yvon (BBGKY) chain for the spectral function of gravitons renormalized by ghosts is used to build a self-consistent theory of gravitons in the isotropic Universe. We found three exact solutions of the equations, consisting of BBGKY chain and macroscopic Einstein's equations. The solutions describe virtual graviton, ghost, and instanton condensates and are reproduced at the level of exact solutions for field operators and state vectors. Each exact solution corresponds to a certain phase state of graviton-ghost substratum. We establish conditions under which a continuous quantum-gravity phase transitions occur between different phases of the graviton-ghost condensate.
description: The paper is a shortened and modified version of arXiv:0811.4484. The quantum-gravity phase transitions are described as continuous ones
title: Алгоритм оценки параметров движения с учетом структуры фазового пространства и анализ эффективности его реализации в системах контроля радиоэлектронной обстановки в условиях неопределенности
Creators: name: ., А.А. Костоглотов – д.т.н., профессор, вед. науч. сотрудник, ФГУП «РНИИРС» ФНПЦ С.В. Лазаренко – к.т.н., доцент, Донской государственный технический университет (г. Ростов-на-Дону) А.А. Мурашов – начальник сектора, ФГУП «РНИИРС» ФНПЦ
Publisher: name: Издательство Радиотехника
Year: 2019

description: Постановка проблемы. В системах контроля радиоэлектронной обстановки требуется оценивать параметры движения в условиях неопределенности, при отсутствии априорной информации о характере движения управляемого объекта. В настоящее время широко используются кинематические модели, которые не в полной мере соответствуют динамике цели. Это приводит к расходимости процесса оценивания и срыву вычислительной процедуры.
Цель. Синтезировать алгоритм оценки параметров движения и провести анализ эффективности его реализации при контроле радиоэлектронной обстановки в условиях неопределенности.
Результаты. Построена математическая модель движения, на основе которой синтезирован алгоритм оценки параметров движения.
Практическая значимость. Математическое моделирование показало, что в условиях неопределенности новый алгоритм оценки параметров движения обеспечивает повышение эффективности контроля радиоэлектронной обстановки в сравнении с «альфа-бета» фильтром по ряду показателей: точность, коэффициент проводки, коэффициент ложных трасс, усредненное время существования ложных трасс.