cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An indefinite metric model for interacting quantum fields with non-stationary background gravitation
Creators: name: Gottschalk, H.
name: Thaler, H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 81T08; 81T20

description: We consider a relativistic Ansatz for the vacuum expectation values (VEVs) of a quantum field on a globally hyperbolic space-time which is motivated by certain Euclidean field theories. The Yang-Feldman asymptotic condition w.r.t. a "in"-field in a quasi-free representation of the canonic commutation relations (CCR) leads to a solution of this Ansatz for the VEVs. A GNS-like construction on a non-degenerate inner product space then gives local, covariant quantum fields with indefinite metric on a globally hyperbolic space-time. The non-trivial scattering behavior of quantum fields is analyzed by construction of the "out"-fields and calculation of the scattering matrix. A new combined effect of non-trivial quantum scattering and non-stationary gravitational forces is described for this model, as quasi-free "in"- fields are scattered to "out"-fields which form a non quasi-free representations of the CCR. The asymptotic condition, on which the construction is based, is verified for the concrete example of de Sitter space-time.
Bestäuber-Diversität bestimmen und bewerten
Creators: name: Sieg, Anne-Kathrin
name: Köbel, Caroline
name: Dreesmann, Daniel
Publisher: name: BU praktisch - Das Online-Journal für den Biologieunterricht
Year: 2021

description: Hummeln sind ideale Modellorganismen zur Bearbeitung des Themas Ökologie. Sie ermöglichen einen aktuellen und höchst relevanten Bezug zum Rückgang der Biodiversität. Schülerinnen und Schüler bestimmen hierzu mit geringem Materialaufwand die Anzahl und Artenvielfalt von Hummeln in unterschiedlichen Lebensräumen. Hierdurch können sie Rückschlüsse auf die Eignung des jeweiligen Lebensraumes für Bestäuber ziehen. Daraus lassen sich wiederum Gestaltungsmöglichkeiten für Garten oder Balkon und Einflussmöglichkeiten auf das Insektensterben im täglichen Handeln und Verhalten ableiten. Hierzu gehört u.a. auch der Klimaschutz. Anhand von Hummeln als Modellorganismen kann der direkte Zusammenhang zwischen Klimawandel und Artensterben erarbeitet werden. Die Unterrichtsmaterialien wurden im Rahmen des Hallo Hummel!-Projektes auf unterschiedlichen Niveaustufen entwickelt und erprobt.
description: BU praktisch - Das Online-Journal für den Biologieunterricht, Bd. 4 Nr. 1 (2021): Flügel, Panzer, Epigenetik - Neues für den Biologieunterricht
Cosmology with massive neutrinos coupled to dark energy
Creators: name: Brookfield, A. W.
name: van de Bruck, C.
name: Mota, D. F.
name: Tocchini-Valentini, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Cosmological consequences of a coupling between massive neutrinos and dark energy are investigated. In such models, the neutrino mass is a function of a scalar field, which plays the role of dark energy. The background evolution, as well as the evolution of cosmological perturbations is discussed. We find that mass-varying neutrinos can leave a significant imprint on the anisotropies in the cosmic microwave background radiation and even lead to a reduction of power on large angular scales.
description: 5 pages, 7 figures, revtex, final version
Waveguide Bandgap Engineering with an Array of Superconducting Qubits
Creators: name: Brehm, Jan David
name: Poddubny, Alexander N.
name: Stehli, Alexander
name: Wolz, Tim
name: Rotzinger, Hannes
name: Ustinov, Alexey V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Waveguide quantum electrodynamics offers a wide range of possibilities to effectively engineer interactions between artificial atoms via a one-dimensional open waveguide. While these interactions have been experimentally studied in the few qubit limit, the collective properties of such systems for larger arrays of qubits in a metamaterial configuration has so far not been addressed. Here, we experimentally study a metamaterial made of eight superconducting transmon qubits with local frequency control coupled to the mode continuum of a waveguide. By consecutively tuning the qubits to a common resonance frequency we observe the formation of super- and subradiant states, as well as the emergence of a polaritonic bandgap. Making use of the qubits quantum nonlinearity, we demonstrate control over the latter by inducing a transparency window in the bandgap region of the ensemble. The circuit of this work extends experiments with one and two qubits towards a full-blown quantum metamaterial, thus paving the way for large-scale applications in superconducting waveguide quantum electrodynamics.
description: 7 pages, 4 figures
The characteristics of poverty in Serbia
Creators: name: Tinde, Dobrodolac
name: Tinde, Dobrodolac
Publisher: name: Unknown
Year: 2009
Subjects: subject: Public Economics
subject: Poverty
subject: sustainable development
subject: poverty reduction strategy
subject: transition

description: Half of the global population is regarded as poor to the extent that the very lives of a large number of people are endangered. Poverty is a multi-dimensional worldwide problem of modern society. In addition to similarities with other countries in transition, Serbia shows some specific features. The Government of Serbia adopted the Poverty Reduction Strategy Paper in 2003.
1500-fold Tunneling Anisotropic Magnetoresistance in a (Ga,Mn)As stack
Creators: name: Rüster, C.
name: Gould, C.
name: Jungwirth, T.
name: Sinova, J.
name: Schott, G. M.
name: Giraud, R.
name: Brunner, K.
name: Schmidt, G.
name: Molenkamp, L. W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the discovery of a super-giant tunneling anisotropic magnetoresistance in an epitaxially grown (Ga,Mn)As/GaAs/(Ga,Mn)As structure. The effect arises from a strong dependence of the electronic structure of ferromagnetic semiconductors on the magnetization orientation rather than from a parallel or antiparallel alignment of the contacts. The key novel spintronics features of this effect are: (i) both normal and inverted spin-valve like signals; (ii) a large non-hysteretic magnetoresistance for magnetic fields perpendicular to the interfaces; (iii) magnetization orientations for extremal resistance are, in general, not aligned with the magnetic easy and hard axis. (iv) Enormous amplification of the effect at low bias and temperatures.
SOME ASPECTS OF EFFECTIVE MANAGEMENT OF THE LABOR MARKET IN KAZAKHSTAN
Creators: name: Alimbekova, Guljan
name: Ilyasova, Alya
name: Alimbekova, Guljan
name: Ilyasova, Alya
Publisher: name: Unknown
Year: 2009
Subjects: subject: International Development
subject: Labor and Human Capital
subject: Labour market
subject: unemployment
subject: living standards
subject: employees
subject: self-employed population.

description: The paper raises issue of self-employed in Kazakhstan. The authors believe that complex measures must be implemented - in areas of legislation and state social policy, statistical reporting and taxation - to create better conditions for self-employed people. Otherwise, the self-employed sector might become a source of poverty extension in the country.
Electronic polarity of nanoclusters: quantum and many-body effects
Creators: name: Shytov, A. V.
name: Allen, P. B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Interesting electrical polarity in nanoclusters usually requires the polarizability to exceed the value R^3 of the classical sphere of radius R. We clarify how this occurs naturally in single electron quantum systems, and relate it to the giant polarizability of Na_14F_13, and to spontaneous dipole formation on niobium clusters. Many-body effects generally reduce the polarizability through screening. The usual RPA treatment retrieves the classical answer, but it significantly overestimates screening in few-electron systems. The system of two electrons on the surface of a sphere is solved numerically, to account for the Coulomb repulsion. At high densities, numerical results agree with RPA model with properly subtracted self-interaction effects. At low densities, the system performs quantum oscillations around the classical ground state. We calculate the lowest anharmonic correction to the polarizability, which also agrees well with numerical evaluation of the polarizability.
Polar planets around highly eccentric binaries are the most stable
Creators: name: Chen, Cheng
name: Lubow, Stephen H.
name: Martin, Rebecca G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the orbital stability of a non-zero mass, close-in circular orbit planet around an eccentric orbit binary for various initial values of the binary eccentricity, binary mass fraction, planet mass, planet semi--major axis, and planet inclination by means of numerical simulations that cover $5 \times 10^4$ binary orbits. For small binary eccentricity, the stable orbits that extend closest to the binary (most stable orbits) are nearly retrograde and circulating. For high binary eccentricity, the most stable orbits are highly inclined and librate near the so-called generalised polar orbit which is a stationary orbit that is fixed in the frame of the binary orbit. For more extreme mass ratio binaries, there is a greater variation in the size of the stability region (defined by initial orbital radius and inclination) with planet mass and initial inclination, especially for low binary eccentricity. For low binary eccentricity, inclined planet orbits may be unstable even at large orbital radii (separation $> 5 \,a_{\rm b}$). The escape time for an unstable planet is generally shorter around an equal mass binary compared with an unequal mass binary. Our results have implications for circumbinary planet formation and evolution and will be helpful for understanding future circumbinary planet observations.
description: 11 pages, 7 figures
Hong Kong and capitalist culture : two films and a critique of transnationalism
Creators: name: Thompson, Malcolm
Publisher: name: University of British Columbia
Year: 2009

description: This thesis attempts to track sociocultural dynamics of inclusion and exclusion in recent Hong Kong history, by means of an analysis of capital logic that is derived from Marxist work on the institution of capitalist culture. The investigation is framed by a reading of two recent films from Hong Kong—"Comrades, Almost a Love Story" (1996: dir. Peter Chan) and "Little Cheung" (1999: dir. Fruit Chan)—which, read together, reveal the interconnections between inclusion and exclusion in a particularly clear way. Several 'scenes', 'events', or processes in recent Hong Kong history are analysed and brought into relation: the transnationalist discourse of diaspora and mobility that Comrades encodes and its obverse side in "Little Cheung"; the juridico-political framework of the detention camps in which Vietnamese refugees were confined from the 1980s until 2001; the economic incorporation of the Pearl River Delta by Hong Kong industrial and financial enterprises; and the Right of Abode debate since 1997, in which the question of who is included in and who is excluded from the category 'Hong Kong person' becomes quite confused. What links these 'moments' is a dynamic in which the very attempt to demarcate an inside and an outside throws the boundary into question, and in which the 'crisis' to which the determining machinery addresses itself is nothing other than the effect of its own operation, thus creating a self-sustaining 'state of emergency' whose dynamism inflects recent Hong Kong history. It is suggested that this dynamic is broadly characteristic of contemporary capitalism, for which Hong Kong serves as an example.
The Standard Model Prediction of the Muon Anomalous Magnetic Moment
Creators: name: Passera, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This article reviews and updates the Standard Model prediction of the muon g-2. QED, electroweak and hadronic contributions are presented, and open questions discussed. The theoretical prediction deviates from the present experimental value by 2-3 standard deviations, if e+e- annihilation data are used to evaluate the leading hadronic term.
description: 30 pages, 8 figures. v2: Updated version to appear in J.Phys.G. Comments and references added, typo corrected in eq.(17)
Border rank non-additivity for higher order tensors
Creators: name: Christandl, Matthias
name: Gesmundo, Fulvio
name: Michałek, Mateusz
name: Zuiddam, Jeroen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: Computational Complexity (cs.CC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 14N07, 15A69

description: Whereas matrix rank is additive under direct sum, in 1981 Schönhage showed that one of its generalizations to the tensor setting, tensor border rank, can be strictly subadditive for tensors of order three. Whether border rank is additive for higher order tensors has remained open. In this work, we settle this problem by providing analogs of Schönhage's construction for tensors of order four and higher. Schönhage's work was motivated by the study of the computational complexity of matrix multiplication; we discuss implications of our results for the asymptotic rank of higher order generalizations of the matrix multiplication tensor.
description: 26 pages, 5 figures. Final version accepted in SIMAX
Additional file 3 of The core genome multi-locus sequence typing of Mycoplasma anserisalpingitidis
Creators: name: Kovács, Áron B.
name: Kreizinger, Zsuzsa
name: Forró, Barbara
name: Grózner, Dénes
name: Mitter, Alexa
name: Marton, Szilvia
name: Bali, Krisztina
name: Sawicka, Anna
name: Tomczyk, Grzegorz
name: Bányai, Krisztián
name: Gyuranecz, Miklós
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Supplementary Figure 1. Comparison between two M. gallisepticum phylogenetic trees using the Ridom SeqSphere+ and chewBBACA cgMLST schemas. Neighbor joining trees were created with GrapeTree software version 1.5.0 [21]. Identical strains with similar or notably different topologies on the two dendrograms are bound with grey or black lines, respectively. A. Phylogenetic tree created based on M. gallisepticum cgMLST allelic profiles determined by Ridom SeqSphere+ software [15]. B. Phylogenetic tree created based on M. gallisepticum cgMLST allelic profiles determined by the modified chewBACCA software.
Observation of gapped state in rare-earth monopnictide HoSb
Creators: name: Hosen, M. Mofazzel
name: Dhakal, Gyanendra
name: Wang, Baokai
name: Poudel, Narayan
name: Singh, Bahadur
name: Dimitri, Klauss
name: Kabir, Firoza
name: Sims, Christopher
name: Regmi, Sabin
name: Neff, William
name: Sarkar, Anan Bari
name: Agarwal, Amit
name: Murray, Daniel
name: Weickert, Franziska
name: Gofryk, Krzysztof
name: Pavlosiuk, Orest
name: Wisniewski, Piotr
name: Kaczorowski, Dariusz
name: Bansil, Arun
name: Neupane, Madhab
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The rare-earth monopnictide family is attracting an intense current interest driven by its unusual extreme magnetoresistance (XMR) property and the potential presence of topologically non-trivial surface states. The experimental observation of non-trivial surface states in this family of materials are not ubiquitous. Here, using high-resolution angle-resolved photoemission spectroscopy (ARPES), magnetotransport, and parallel first-principles modeling, we examine the nature of electronic states in HoSb. Although we find the presence of bulk band gaps at the G and X-symmetry points of the Brillouin zone (BZ), we do not find these gaps to exhibit band inversion so that HoSb does not host a Dirac semimetal state. Our magnetotransport measurements indicate that HoSb can be characterized as a correlated nearly-complete electron-hole-compensated semimetal. Our analysis reveals that the nearly perfect electron-hole compensation could drive the appearance of non-saturating XMR effect in HoSb.
description: 13 pages, 10 figures, Supplementary Information included
Temperature dependence in random matrix models with pairing condensates
Creators: name: Vanderheyden, Benoit
name: Jackson, A. D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We address a number of issues raised by a manuscript of Klein, Toublan, and Verbaarschot (hep-ph/0405180) in which the authors introduce a random matrix model for QCD with two colors, two flavors, and fermions in the fundamental representation. Their inclusion of temperature terms differs from the approach adopted in previous work on this problem (Phys. Rev. D 64, 074016 (2001).) We demonstrate that the two approaches are related by a transformation that leaves the thermodynamic potential invariant and which therefore has no effect on physical observables.
description: 8 pages, revtex4. v2: typos corrected in references
Stability evaluation of shallow blocks in high and steep slope combining TLS and UAV photogrammetry
Creators: name: Chen, Jun-lin
name: Li, Hai-bo
name: Jiang, Nan
name: Chen, Qin
name: Yang, Yu-chuan
name: Zhou, Jia-wen
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Information Systems not elsewhere classified
subject: Cancer
subject: Mental Health

description: Failure of rock slopes constitutes a prevalent geohazard inherent to transportation networks and structures situated in high and steep mountainous terrains, resulting in fatalities and infrastructural damage. This study delineates a framework for evaluating the stability of shallow blocks within an intricate alpine topography, including data acquisition, automatic discontinuity extraction and stability assessment of shallow blocks. The proposed methodology leverages composite surveys to generate high-resolution point clouds using terrestrial laser scanning (TLS) and Unmanned Aerial Vehicle (UVA), facilitating the rapid assessment of the shape, volume, and safety factor of unstable blocks by employing an auto-discontinuity extraction algorithm. In case studies, we discovered that the discontinuities orientation of natural slopes and excavated slopes has changed. This discrepancy significantly influences the instability mechanism of these slopes, leading to precise identification of falling blocks after slope excavation, which is particularly prevalent on roads and unsupported slopes. Consequently, the proposed method is of paramount significance for the assessment of slope stability during construction and offers valuable insights for the formulation of safety measures. Furthermore, its potential to facilitate rapid and accurate assessments of rock mass instability hazards and locations underscores its importance in ensuring the stability of shallow blocks in these terrains.
Development of the infrastructure of rural labor market in Uzbekistan
Creators: name: Khomitov, Komiljon
name: Khomitov, Komiljon
Publisher: name: Unknown
Year: 2009
Subjects: subject: Community/Rural/Urban Development
subject: Labor and Human Capital
subject: Rural labour market
subject: infrastructure

description: The demand for labor force in villages of Uzbekistan is developing in a very slow rate. The paper raises problems of employment in rural areas of the country. Measures to increase employment are suggested.
Additional file 1 of The IBER study: study protocol for a feasibility randomised controlled trial of Imagery Based Emotion Regulation for the treatment of anxiety in bipolar disorder
Creators: name: Steel, Craig
name: Wright, Kim
name: Goodwin, Guy
name: Simon, Judit
name: Morant, Nicola
name: Taylor, Rod
name: Brown, Michael
name: Jennings, Susie
name: Hales, Susie
name: Holmes, Emily
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1:. SPIRIT 2013 Checklist: Recommended items to address in a clinical trial protocol and related documents*
Socially responsible business formation in Ukraine
Creators: name: Shapoval, Valentina
name: Shapoval, Valentina
Publisher: name: Unknown
Year: 2009
Subjects: subject: Labor and Human Capital
subject: Public Economics
subject: Social responsibility
subject: business
subject: formation
subject: negative factors
subject: trends
subject: crisis.

description: The paper reviews development process of social responsibility of business in Ukraine during transition of its economy to market. Today social responsibility of business is understood by national entrepreneurs as marketing or PR-technology, this way it is limited to social events. In this interpretation the concept can not support stable development both at micro- and macro level and provide competitive edge for enterprises in the longer term. The author suggests possible scenarios for developing of social responsibility of business in the crisis.
CORPORATE SOCIAL RESPONSIBILITY IN KAZAKHSTAN: PROBLEMS AND PERSPECTIVES
Creators: name: Zharkynbayeva, Roza
name: Zharkynbayeva, Roza
Publisher: name: Unknown
Year: 2009
Subjects: subject: International Development
subject: Public Economics
subject: Social responsibility
subject: social partnership
subject: Kazakhstan.

description: The article considers the problems of corporate social responsibility in the Republic of Kazakhstan. There are certain preconditions created for formation of corporate responsibility of businesses in the country: regulatory and legislative institutions, public-private partnership are being developed. However, involvement of the business into the social-targeted projects is not significant yet. Corporate social responsibility is only on its way to become a systemic phenomenon of the Kazakhstan’s society and culture.
APPROACHES TO THE ESTIMATION OF THE QUALITY OF LIFE FOR POPULATION OF UZBEKISTAN IN CONDITIONS OF MARKET LIBERALIZATION
Creators: name: Berdikulov, Sirajiddin
name: Gulyamova, Gulnora
name: Trostjanskij, Dmitry
name: Berdikulov, Sirajiddin
name: Gulyamova, Gulnora
name: Trostjanskij, Dmitry
Publisher: name: Unknown
Year: 2009
Subjects: subject: Public Economics
subject: Quality of life
subject: life quality estimation and management
subject: regional development
subject: market transformations.

description: The article appeals to the life quality measurement issue in Uzbekistan. The life quality management has become challenging task in the process of radical system transformations from the administrative paradigm to the market one. The authors describe some approaches how to compose integrated life quality indicator. Particularly attention is given to evaluation and monitoring of life quality at regional level.
Wildlife Tourism and Community-Based Conservation Towards Tanzania Vision 2025
Creators: name: Dick, Rebecca
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Tanzania
Community-Based Conservation
Wildlife Management Areas
Tanzania Development Vision 2025
Wildlife Tourism

description: This research goes beyond the traditionally studied intricacies and contentions within northern Tanzania’s community-based conservation by looking at how the state’s engagement, through wildlife tourism, with local communities in and around protected areas impacts the country’s development and conservation of its wildlife. It draws heavily on Tanzania’s Development Vision 2025 and how the wildlife tourism industry feeds into achieving its objectives. This research looks through the theoretical lens of political ecology, the theory of access, and the powers of exclusion. It applies a qualitative content analysis by coding different types of existing literature in NVivo, and includes semi-structured interviews with key respondents. The research concludes that the government’s recentralization of wildlife management is working opposite to its development ambitions as per Vision 2025, and it is doing very little to address the crisis within its ecosystems and to enhance wildlife conservation. Ultimately, it is through the government’s efforts to protect Tanzania’s ecological uniqueness that both conservation and development have faced increased challenges in its efforts to improve.
Localization with One-Bit Passive Radars in Narrowband Internet-of-Things using Multivariate Polynomial Optimization
Creators: name: Sedighi, Saeid
name: Mishra, Kumar Vijay
name: Shankar, M. R. Bhavani
name: Ottersten, Björn
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Information Retrieval (cs.IR)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Several Internet-of-Things (IoT) applications provide location-based services, wherein it is critical to obtain accurate position estimates by aggregating information from individual sensors. In the recently proposed narrowband IoT (NB-IoT) standard, which trades off bandwidth to gain wide coverage, the location estimation is compounded by the low sampling rate receivers and limited-capacity links. We address both of these NB-IoT drawbacks in the framework of passive sensing devices that receive signals from the target-of-interest. We consider the limiting case where each node receiver employs one-bit analog-to-digital-converters and propose a novel low-complexity nodal delay estimation method using constrained-weighted least squares minimization. To support the low-capacity links to the fusion center (FC), the range estimates obtained at individual sensors are then converted to one-bit data. At the FC, we propose target localization with the aggregated one-bit range vector using both optimal and sub-optimal techniques. The computationally expensive former approach is based on Lasserre's method for multivariate polynomial optimization while the latter employs our less complex iterative joint r\textit{an}ge-\textit{tar}get location \textit{es}timation (ANTARES) algorithm. Our overall one-bit framework not only complements the low NB-IoT bandwidth but also supports the design goal of inexpensive NB-IoT location sensing. Numerical experiments demonstrate feasibility of the proposed one-bit approach with a $0.6$\% increase in the normalized localization error for the small set of $20$-$60$ nodes over the full-precision case. When the number of nodes is sufficiently large ($>80$), the one-bit methods yield the same performance as the full precision.
description: 16 pages, 11 figures
Complex velocity transformations and the Bisognano--Wichmann theorem for quantum fields acting on Krein spaces
Creators: name: Gottschalk, H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81T05; 46C20

description: It is proven that in indefinite metric quantum field theory there exists a dense set of analytic vectors for the generator of the one parameter group of x^0-x^1 velocity transformations. This makes it possible to define complex velocity transformations also for the indefinite metric case. In combination with the results of Bros -- Epstein -- Moschella, proving Bisognano--Wichmann (BW) analyticity within the linear program, one then obtains a suitable generalization of the BW theorem for local, relativistic quantum fields acting on Krein spaces ("quantum fields with indefinite metric").
Pebble-driven Planet Formation around Very Low-mass Stars and Brown Dwarfs
Creators: name: Liu, Beibei
name: Lambrechts, Michiel
name: Johansen, Anders
name: Pascucci, Ilaria
name: Henning, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We conduct a pebble-driven planet population synthesis study to investigate the formation of planets around very low-mass stars and brown dwarfs, in the (sub)stellar mass range between $0.01 \ M_{\odot}$ and $0.1 \ M_{\odot}$. Based on the extrapolation of numerical simulations of planetesimal formation by the streaming instability, we obtain the characteristic mass of the planetesimals and the initial masses of the protoplanets (largest bodies from the planetesimal size distributions), in either the early self-gravitating phase or the later non-self-gravitating phase of the protoplanetary disk evolution. We find that the initial protoplanets form with masses that increase with host mass, orbital distance and decrease with disk age. Around late M-dwarfs of $0.1 \ M_{\odot}$, these protoplanets can grow up to Earth-mass planets by pebble accretion. However, around brown dwarfs of $0.01 \ M_{\odot}$, planets do not grow larger than Mars mass when the initial protoplanets are born early in self-gravitating disks, and their growth stalls at around $0.01$ Earth-mass when they are born late in non-self-gravitating disks. Around these low mass stars and brown dwarfs, we find no channel for gas giant planet formation because the solid cores remain too small. When the initial protoplanets form only at the water-ice line, the final planets typically have ${\gtrsim} 15\%$ water mass fraction. Alternatively, when the initial protoplanets form log-uniformly distributed over the entire protoplanetary disk, the final planets are either very water-rich (water mass fraction ${\gtrsim}15\%$) or entirely rocky (water mass fraction ${\lesssim}5\%$).
description: 12 pages, 8 figures, accepted in A&A
A comparative study of overlap and staggered fermions in the Schwinger model
Creators: name: Dürr, Stephan
name: Hoelbling, Christian
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate the validity of the square rooting procedure of the staggered determinant in the context of the Schwinger model. We find some evidence that at fixed physical quark mass the square root of the staggered determinant becomes proportional to the overlap determinant in the continuum limit. We also find that at fixed lattice spacing moderate smearing dramatically improves the chiral behavior of staggered fermions.
description: Contribution to LATTICE 2004 (Chiral fermions)
Additional file 1 of Relationship between maternal body mass index with the onset of breastfeeding and its associated problems: an online survey
Creators: name: Ballesta-Castillejos, Ana
name: Gomez-Salgado, Juan
name: Rodriguez-Almagro, Julian
name: Ortiz-Esquinas, Inmaculada
name: Hernandez-Martinez, Antonio
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Computational Biology

description: Additional file 1. Questionnaire.
Note on Mediation of Supersymmetry Breaking from Closed to Open Strings
Creators: name: Antoniadis, Ignatios
name: Taylor, Tomasz R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the mediation of supersymmetry breaking from closed to open strings, extending and improving previous analysis of the authors in Nucl. Phys. B 695 (2004) 103 [hep-th/0403293]. In the general case, we find the absence of anomaly mediation around any perturbative string vacuum. When supersymmetry is broken by Scherk-Schwarz boundary conditions along a compactification interval perpendicular to a stack of D-branes, the gaugino acquires a mass at two loops that behaves as $m_{1/2}\sim g^4 m_{3/2}^3$ in string units, where $m_{3/2}$ is the gravitino mass and $g$ is the gauge coupling.
description: 8 pages, 1 figure
INFORMATIONAL TECHNOLOGIES IN MODERN KAZAKHSTAN'S EDUCATION: THE INNOVATIVE POTENTIAL
Creators: name: Zaitseva, Irina
name: Zaitseva, Irina
Publisher: name: Unknown
Year: 2009
Subjects: subject: Teaching/Communication/Extension/Profession
subject: Education
subject: information technology
subject: Internet
subject: Kazakhstan.

description: The article contemplates the issue of modern informational technologies application at Kazakhstan’s high education institutions. The attention is paid on both positive and negative sides of the usage of these means. Update studies show that informational technologies are not only instrumental tools of educating process. They are gradually changing the conceptual and methodological foundations of education and they have substantial potential in innovating and developing educational processes at higher institutions.
Recoil spectrometers for heavy-ion identification and secondary-beam production: pushing the low-energy limit
Creators: name: Audouin, L.
name: Tassan-Got, L.
name: Armbruster, P.
name: Schmidt, K. -H.
name: Stephan, C.
name: Taieb, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The feasibility of low-energy fragmentation experiments using a magnetic spectrometer is discussed. The main challenge is the multiplicity of the ionic charge states, which can hamper the identification in both Z and A of the fragments. Three topics are covered. First, a specific set-up for ionization chambers, based on a very large gas thickness, is presented. Its satisfactory performances are discussed in light of the observations during a 500A MeV Pb+p experiment performed at the FRS (GSI). As a second topic, the possibility to use a thick layer of matter (a degrader) as a passive measurement device to identify the nuclear charge and the ionic charge state of fragments is discussed. This method, successfully used for Z identification in experiments such as Pb+p at 1A GeV, fails to measure the charge states at 500A MeV for the same system. It is shown that surface defects of the degrader are probably responsible for this failure. The third topic is the description of new analysis techniques developed in order to account for and subtract the contribution of polluting charge states in the spectrometer, thus making possible a clean estimation of the production cross sections of all fragments. The combination of those new experimental and analysis techniques made the 500A MeV spallation experiment a success.
An Extensive Survey on the Internet of Drones
Creators: name: Boccadoro, Pietro
name: Striccoli, Domenico
name: Grieco, Luigi Alfredo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The Internet of Drones (IoD) recently gained momentum due to its high adaptability to a wide variety of complex scenarios. Indeed, Unmanned Aerial Vehicles (UAVs) can successfully be employed in different applications, thanks to some technological and practical advantages: high mobility, capability to extend wireless coverage areas, or ability to reach places inaccessible to humans. Moreover, the employment of drones promisingly improves the performance parameters of different network architectures. Nevertheless, the adoption of networks of drones gives rise to several issues related to the unreliability of the wireless medium, the duration of batteries, and the high mobility degree, which may cause frequent topology changes. Also security and privacy issues need to be properly investigated. With respect to other surveys on IoD-related topics, the goal of the present work is to categorize the multifaceted aspects of IoD, proposing a classification approach of the IoD environment that develops along two main directions. At a macroscopic level, it follows the structure of the Internet protocol stack, starting from the physical layer and extending to the upper layers, without neglecting cross-layer and optimization approaches. At a finer level, all the most relevant works belonging to each layer of the stack are further classified, according to the different issues peculiar of the layer, and highlighting the most relevant differences with the other surveys present in literature. To provide a deeper insight in the theme, the present work embraces many facets of the IoD, including privacy and security considerations as well as the potential economic impact of the IoD. Finally, a discussion on the main research challenges and possible future directions is carried out, focusing on the open issues and the most promising technologies that deserve to be further developed in the IoD field.
A combined theoretical and experimental study of the low temperature properties of BaZrO3
Creators: name: Akbarzadeh, A. R.
name: Kornev, I.
name: Malibert, C.
name: Bellaiche, L.
name: Kiat, J. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Low temperature properties of BaZrO3 are revealed by combining experimental techniques (X-ray diffraction, neutron scattering and dielectric measurements) with theoretical first-principles-based methods (total energy and linear response calculations within density functional theory, and effective Hamiltonian approaches incorporating/neglecting zero-point phonon vibrations). Unlike most of the perovskite systems, BaZrO3 does not undergo any (long-range-order) structural phase transition and thus remains cubic and paraelectric down to 2 K, even when neglecting zero-point phonon vibrations. On the other hand, these latter pure quantum effects lead to a negligible thermal dependency of the cubic lattice parameter below ~ 40 K. They also affect the dielectricity of BaZrO3 by inducing an overall saturation of the real part of the dielectric response, for temperatures below ~ 40 K. Two fine structures in the real part, as well as in the imaginary part, of dielectric response are further observed around 50-65 K and 15 K, respectively. Microscopic origins (e.g., unavoidable defects and oxygen octahedra rotation occurring at a local scale) of such anomalies are suggested. Finally, possible reasons for the facts that some of these dielectric anomalies have not been previously reported in the better studied KTaO3 and SrTiO3 incipient ferroelectrics are also discussed.
description: 8 pages, 5 figures, submitted to Physical Review B
Nisga’a architecture and landscapes : ecological wisdom and community-led design
Creators: name: Mackin, Nancy Patricia
Publisher: name: University of British Columbia
Year: 2009

description: How are long-resident peoples' wisdom and knowledge communicated through landscape and architectural space? This thesis reconstructs spatial histories of the Nisga'a Nation to uncover how architecture and landscapes retain and adapt cultural, technological, and ecological wisdom of past generations. The Nisga'a people, who have lived for at least thirteen thousand years in the Nass River Valley of British Columbia, attest to a spirituality and cohesiveness deriving from their knowledge of and sense of belonging to the land. The knowledge is recorded here through empirical research that records elders' memories of Nass Valley structures and places. Interviews, supplemented with records of ceremonials, photographs, and extant structures, are translated into architectural drawings, models, and Geographic Information System maps. During a feast which is also a community-led research and design charrette (workshop), Nisga'a elders critique the reconstructions, verifying correlations between spatial memories and the reconstructed representations of architectural/ landscape space. The charrettes form a case study in community-led research and design. A reverse chronology, informed by oral histories and written documentation, traces landscape changes back to the beginning of Nisga'a time. Then, as the history moves forward, the people's architectural legacy is shown to encode ecological and cultural wisdom within materials, carved and painted surfaces, and evocation of place. Landscape change, mapped relative to architectural innovation, demonstrates the Nisga'a people's skill at adapting new technologies and designs to suit their visions and needs. Through an architectural repertoire based upon respect for the land, Nisga'a elders' wisdom is shown to have profound implications for on-going global negotiations with cultural and ecological change. Accumulated ecological wisdom of the long-resident people offers practical solutions and respectful philosophies for landscape use that contribute to resource abundance and cultural cohesion. The dynamic Nisga'a architectural repertoire exemplifies how age-old ecological knowledge fuses with emerging architectural and landscape technologies, facilitating adaptation to dynamic situations. Importantly, the traditional feast offers systems of communication that catalyze recollection of ecological wisdom. In this research, the feast becomes a model for community-led spatial decision-making: a process that brings elder-communicated knowledge together with innovation, thereby achieving long-term cultural and ecological sustainability.
Berry phases of higher spins due to internal geometry of Majorana constellation and relation to quantum entanglement
Creators: name: Kam, Chon-Fai
name: Liu, Ren-Bao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Majorana stars, the antipodal directions associated with the coherent states that are orthogonal to a spin state, provide a visualization and a geometric understanding of the structures of general quantum states. For example, the Berry phase of a spin-1/2 is given by half the solid angle enclosed by the close path of its Majorana star. It is conceivable that the Berry phase of higher spins may also be related to the geometry of the Majorana constellation. We find that for a spin-1 state, besides the expected contributions from the solid angles enclosed by the close paths of the two Majorana stars, the Berry phase includes a term related to the twist of the relative position vector around the barycenter vector of the two Majorana stars, i.e., the self-rotation of the constellation. Interestingly, if the spin-1 state is taken as a symmetrized two-qubit state, the extra contribution to the Berry phase is given by the self-rotation of the Majorana constellation weighted by the quantum entanglement of the two qubits. This discovery alludes to the relevance of the Majorana stellar geometry in representing the deep structures of quantum states and of quantum entanglement.
Reformatting the hard drive of South African education for the knowledge economy
Creators: name: Davis, Jason
name: Davis, Jason
Publisher: name: Unknown
Year: 2009
Subjects: subject: Teaching/Communication/Extension/Profession
subject: Economic education
subject: educational gaming
subject: interactive game.

description: South African education system needs reformatting in order to produce employable graduates. By introducing educational gaming into the formal learning programmes, the nature and quality of learning can be enhanced to create the innovative professionals need for the new knowledge economy.
Detection of anisotropic galaxy assembly bias in BOSS DR12
Creators: name: Obuljen, Andrej
name: Percival, Will J.
name: Dalal, Neal
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present evidence of anisotropic galaxy assembly bias in the Baryon Oscillation Spectroscopic Survey Data Release 12 galaxy sample at a level exceeding $5σ$. We use measurements of the line-of-sight velocity dispersion $σ_\star$ and stellar mass $M_\star$ to perform a simple split into subsamples of galaxies. We show that the amplitude of the monopole and quadrupole moments of the power spectrum depend differently on $σ_\star$ and $M_\star$, allowing us to split the galaxy sample into subsets with matching monopoles but significantly different quadrupoles on all scales. Combining data from the LOWZ and CMASS NGC galaxy samples, we find $>5σ$ evidence for anisotropic bias on scales $k<0.15\,h\,\rm{Mpc}^{-1}$. We also examine splits using other observed properties. For galaxy samples split using $M_\star$ and projected size $R_0$, we find no significant evidence of anisotropic bias. Galaxy samples selected using additional properties exhibit strongly varying degrees of anisotropic assembly bias, depending on which combination of properties is used to split into subsets. This may explain why previous searches for this effect using the Fundamental Plane found inconsistent results. We conclude that any selection of a galaxy sample that depends on $σ_\star$ can give biased and incorrect Redshift Space Distortion measurements.
description: 15 pages, 11 figures. Comments welcome
INNOVATIONS IN EDUCATION SYSTEM AS A CONDITION OF ECONOMICAL DEVELOPMENT
Creators: name: Maulsharif, Mira
name: Maulsharif, Mira
Publisher: name: Unknown
Year: 2009
Subjects: subject: Teaching/Communication/Extension/Profession
subject: Innovative education
subject: conventional education
subject: economical development.

description: The author points on necessity of transformation from dominating traditional knowledge sharing and conventional education system to the innovative one. Innovative education system is considered as a factor driving competitiveness of modern economy and sustaining its long-term development. The author indicates on different measures that can contribute to building up innovative education environment in high schools of Kazakhstan.