cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Continuous-variable quantum key distribution in fast fading channels
Creators: name: Papanastasiou, Panagiotis
name: Weedbrook, Christian
name: Pirandola, Stefano
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the performance of several continuous-variable quantum key distribution protocols in the presence of fading channels. These are lossy channels whose transmissivity changes according to a probability distribution. This is typical in communication scenarios where remote parties are connected by free-space links subject to atmospheric turbulence. In this work, we assume the worst-case scenario where an eavesdropper has full control of a fast fading process, so that she chooses the instantaneous transmissivity of a channel, while the remote parties can only detect the mean statistical process. In our study, we consider coherent-state protocols run in various configurations, including the one-way switching protocol in reverse reconciliation, the measurement-device-independent protocol in the symmetric configuration and a three-party measurement-device-independent network. We show that, regardless of the advantage given to the eavesdropper (full control of fading), these protocols can still achieve high rates.
description: REVTeX. 7 pages. 9 figures
Flux Compactifications of M-Theory on Twisted Tori
Creators: name: Hull, C. M.
name: Reid-Edwards, R. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find the bosonic sector of the gauged supergravities that are obtained from 11-dimensional supergravity by Scherk-Schwarz dimensional reduction with flux to any dimension D. We show that, if certain obstructions are absent, the Scherk-Schwarz ansatz for a finite set of D-dimensional fields can be extended to a full compactification of M-theory, including an infinite tower of Kaluza-Klein fields. The internal space is obtained from a group manifold (which may be non-compact) by a discrete identification. We discuss the symmetry algebra and the symmetry breaking patterns and illustrate these with particular examples. We discuss the action of U-duality on these theories in terms of symmetries of the D-dimensional supergravity, and argue that in general it will take geometric flux compactifications to M-theory on non-geometric backgrounds, such as U-folds with U-duality transition functions.
description: Latex, 47 pages
Initial Conditions, Institutional Dynamics and Economic Performance: Evidence from the American States
Creators: name: Berkowitz, Daniel
name: Clay, Karen
Publisher: name: Carnegie Mellon University
Year: 2004
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Using state-level data from the United States, we find that differences in colonial legal institutions have affected the current quality of state legal institutions. These differences in colonial legal institutions arose because some states were settled by Great Britain, a common law country, and other states were settled by France, Spain, and Mexico, all civil law countries. To explain these findings, we develop a transplant-civil law hypothesis that highlights the disruption associated with large-scale legal transplantation and the possible relative inefficiencies of colonial civil law. We find strong support for the transplant-civil law hypothesis. Our results are robust to the inclusion of additional variables capturing climate, geography, initial population, resource endowments, state level rules, and legal environment. Given the 150-200 year gap between the initial conditions and the measures of the current quality of legal institutions, we provide indirect evidence on the persistence of legal institutions. We then use initial legal systems as a source of exogenous variation in current institutions for providing a series of estimates of their impact on current economic performance.
Quantum hair of black holes out of equilibrium
Creators: name: Brustein, Ram
name: Medved, A. J. M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Classically, the black hole (BH) horizon is completely opaque, hiding any clues about the state and very existence of its interior. Quantum mechanically and in equilibrium, the situation is not much different: Hawking radiation will now be emitted, but it comes out at an extremely slow rate, is thermal to a high degree of accuracy and thus carries a minimal amount of information about the quantum state within the BH. Here, it is shown that the situation is significantly different when a quantum BH is out of equilibrium. We argue that the BH can then emit "supersized" Hawking radiation with a much larger amplitude than that emitted in equilibrium. The result is a new type of quantum hair that can reveal the state and composition of the BH interior to an external observer. Moreover, the frequency and amplitude of the new hair can be explained by the observer without invoking any new physical principles. The new hair decays at a parametrically slow rate in comparison to the Schwarzschild time scale and can be detected through the emission of gravitational waves (and possibly other types of waves); for example, during and after a BH-merger event. The current discussion is motivated by a previous analysis, in the context of a recently proposed polymer model for the BH interior, that implies emissions just like those described here. We expect, however, that the new hair is a model-independent property of quantum BHs.
Information Technology, Organizational Capabilities and Context: How do regional economies and institutions matter to the spread of innovation?
Creators: name: Kelley, Maryellen R.
name: Helper, Susan
Publisher: name: Carnegie Mellon University
Year: 1997
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Resource dependency and institutional theories of organizational structure and economic geography are employed to explain the spread of information technology applications in manufacturing processes. We consider a number of avenues through which institutions affect the spread of three different information technology applications. We find that an ownership change is itself an institutional mechanism that disrupts routines in the acquired enterprise and serves to legitimate the adoption of new technologies. Institutional linkages employed by enterprises for purposive search and active learning promote the diffusion of knowledge about the kinds of adaptations in standard practices necessary to exploit new technologies. Only the influences from the local economy in spreading innovation - especially from regional specialization – indicate an institutionalizing process of change that reflects mimetic isomorphism whereby late adopters conform to the growing dominance of specific information technologies within more specialized regions.
New Type of Collective Motion for N $\sim$ Z Nuclei
Creators: name: Ginocchio, Joseph N.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study a new type of collective motion with alpha-particle type of correlations and show that it may be relevant for N $\sim$ Z nuclei.
description: 10 pages, latex, one figure given on request, LA-UR-96-997
A Statistical Examination of the Short Term Stability of the Upsilon Andromedae System
Creators: name: Barnes, Rory
name: Quinn, Thomas
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Because of the high eccentricities (~0.3) of two of the possible planets about the star Upsilon Andromeda, the stability of the system requires careful study. We present results of 1000 numerical simulations which explore the orbital parameter space as constrained by the observations. The orbital parameters of each planet are chosen from a Gaussian error distribution, and the resulting configuration is integrated for 1,000,000 years. We find that 84% of these integrations are stable. Configurations in which the eccentricity of the third planet is <0.3 are always stable, but when the eccentricity is >0.45 the system is always unstable, typically producing a close encounter between the second and third planets. A similar exercise with the gas giants in our own Solar System sampled with the same error distribution was performed. Approximately 81% of these simulations were stable for 10^6 years.
description: 12 pages, 1 figure, submitted to ApJ
Petrogenesis of neo-Tethyan ophiolites from the Indo-Myanmar ranges: a review
Creators: name: Ovung, Thungyani N
name: Ghosh, Biswajit
name: Ray, Jyotisankar
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: Science Policy

description: A comprehensive whole-rock geochemical study of peridotites and volcanic rocks from the Indo-Myanmar Ranges (IMR) ophiolites deduces the source and extent of mantle melting and role of subduction components in modifying its melt composition. Melt modelling yields partial melting in the range of ~5–25% (with a maximum up to 20%) from a depleted MORB mantle (DMM) source. Two types of subduction component seem to have modified the IMR volcanics. The addition of hydrous fluids from a subducting slab has enriched few IMR volcanics in large-ion lithophile elements (LILEs) while those enriched in LREEs were affected by melts derived from subducting sediments. The MORB-Arc basalt geochemical signatures of the IMR volcanics are attributed to the evolving magma as the extent of mantle melting increases under the influence of fluids/melts from the dehydrating slab/sediments in the later stages of subduction initiation (SI).
Urophora veruata Rondani 1870
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tephritidae
Urophora
Urophora veruata

description: Urophora veruata Rondani, 1870
ORIGINAL DESCRIPTION: 1870a: 14 (key), 18 (description).
 TYPE LOCALITY: “ in Apennino parmensi [Parmese Apennines (Italy)]”.
 TYPE MATERIAL: 1 ♀, lectotype (missing right wing, abdomen in microvial pinned below specimen) (MZUF: Box 32): Urophora Desv. / veruata Rnd., Apen. [= Apennines] / 1693 / To be lectotype [not designated] Urophora veruata Rondani, det. I.M. White, 1986; 1 ♀, paralectotype (dirty, damaged by the pin, abdomen in microvial pinned below specimen) (MZUF: Box 32): Urophora Desv. / veruata Rnd. / 1693 / paralectotype [not designated] Urophora veruata Rondani, det. I.M. White, 1986.
 CURRENT STATUS: valid species (Foote 1984: 145); junior synonym of Urophora solstitialis (Linnaeus, 1758) (White & Korneyev 1989: 360, Norrbom et al. 1999: 243).
 REMARKS: Rondani (1870a: 18) described Urophora veruata from just the female sex without specifying either the number or the length of the specimens: “ Bis foeminam … legi [I collected the female twice]”. White & Korneyev (1989: 359) reported two females in the MZUF. Ian M. White examined the MZUF type material in 1986, adding the label “ lectotype ” and “ paralectotype ” under the specimens, but without, as far we know, formally publishing a lectotype designation. In order to promote nomenclatural stability, we give credit to I.M. White and here designate as a lectotype for Urophora veruata Rondani, 1870 the female labeled as such by him.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 381, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
DNA translocation through alpha-haemolysin nano-pores with potential application to macromolecular data storage
Creators: name: Khulbe, Pramod K.
name: Gruener, Raphael
name: Mansuripur, Masud
Publisher: name: arXiv
Year: 2017
Subjects: subject: Emerging Technologies (cs.ET)
subject: Applied Physics (physics.app-ph)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Digital information can be encoded in the building-block sequence of macromolecules, such as RNA and single-stranded DNA. Methods of "writing" and "reading" macromolecular strands are currently available, but they are slow and expensive. In an ideal molecular data storage system, routine operations such as write, read, erase, store, and transfer must be done reliably and at high speed within an integrated chip. As a first step toward demonstrating the feasibility of this concept, we report preliminary results of DNA readout experiments conducted in miniaturized chambers that are scalable to even smaller dimensions. We show that translocation of a single-stranded DNA molecule (consisting of 50 adenosine bases followed by 100 cytosine bases) through an ion-channel yields a characteristic signal that is attributable to the 2-segment structure of the molecule. We also examine the dependence of the translocation rate and speed on the adjustable parameters of the experiment.
description: 15 pages, 13 references, 8 figures. arXiv admin note: substantial text overlap with arXiv: 1709.03596
Information Technology Complementary Capital and the Transatlantic Productivity Divergence
Creators: name: Vincenzi, Marco
Publisher: name: Carnegie Mellon University
Year: 2009
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Since the Lisbon Summit in 2000, there has been an active debate within Europe regarding the competitiveness of the EU regional economy. While the gap in GDP per capita is not really widening according to Van Ark, it is labor productivity that is diverging. After nearly four decades of European convergence to U.S. productivity levels, labor productivity and total factor productivity trends in the U.S. and the EU began to diverge in the mid-1990s. U.S. labor and Total Factor Productivity (TFP) growth accelerated, EU productivity growth did not. A large and growing literature has tied the divergence in labor productivity trends to superior American investment in and utilization of Information and Communications Technologies (ICT). More recent work has attributed some of the divergence in Total Factor Productivity to ICT as well. Superior American performance appears to arise not only or even mostly from high levels of investment in ICT; rather, American industries and firms appear to derive greater output boosts from their investment. Basu et al. (2003) have proposed a model consistent with these facts, in which the impact of ICT investment is enhanced by unmeasured investment in organizational capital that is complementary to the ICT hardware and software. In this paper, we build on the work of Basu et al., both conceptually and empirically. In our empirical work, we develop a simple model of unmeasured complementary capital and apply it to U.S., French and Belgian data in order to understand whether complementary capital accumulation can explain the “missing” TFP growth in the European countries since the mid of the 1990s. Theory suggests that TFP growth should be negatively correlated with contemporaneous investments in ICT capital, because firms are diverting resources to install the new capital; while it should be positively associated with lagged investments in ICT capital. Whereas the United States started to invest in ICT and in complementary capital in the late 1980s and continued during all the1990s, we find evidence that France and Belgium delayed the wave of ICT investments until the late 1990. We also trace the benefits of these late investments on TFP growth during the first years of the 21st Century. We also begin to suggest a different conceptualization of “Complementary Capital” that suggests a role for constrained supplies of skilled labor in determining the impact of ICT investment on productivity. We offer preliminary evidence suggesting the importance of this labor supply affect and sketch out how it might be tested more thoroughly.
Alternative approach to the regularization of odd dimensional AdS gravity
Creators: name: Mora, Pablo
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper I present an action principle for odd dimensional AdS gravity which consists of introducing another manifold with the same boundary and a very specific boundary term. This new action allows and alternative approach to the regularization of the theory, yielding a finite euclidean action and finite conserved charges. The choice of the boundary term is justified on the grounds that an enhanced 'almost off-shell' local AdS/Conformal symmetry arises for that very special choice. One may say that the boundary term is dictated by a guiding symmetry principle. Two sets of boundary conditions are considered, which yield regularization procedures analogous to (but different from) the standard 'background substraction' and 'counterterms' regularization methods. The Noether charges are constructed in general. As an application it is shown that for Schwarszchild-AdS black holes the charge associated to the time-like Killing vector is finite and is indeed the mass. The Euclidean action for Schwarzschild-AdS black holes is computed, and it turns out to be finite, and to yield the right thermodynamics. The previous paragraph may be interpreted in the sense that the boundary term dictated by the symmetry principle is the one that correctly regularizes the action.
description: References added, typos corrected.Content changes: Title (Alternative by Unified), Abstract, Introduction and Sections changed emphasizing and discussing differences with standard Counterterms and Background Subtraction regularization frameworks. Deeper and more detailed discussion of the enhanced symmetry of the proposed action and the required fall-off conditions
Local likelihood modelling via stagewise aggregation
Creators: name: Belomestny, Denis
name: Spokoiny, Vladimir
Publisher: name: Weierstrass Institute
Year: 2004
Subjects: subject: aggregation
subject: local likelihood
subject: exponential family
subject: density estimation
subject: classification
subject: spatial adaptivity
subject: 62G05
subject: 62G07
subject: 62G08
subject: 62H30

description: The paper presents a unified approach to local likelihood estimation for a broad class of nonparametric models, including e.g. the regression, density, Poisson and binary response model. Given a sequence of local likelihood estimates which we call "weak" estimates, the proposed method yields a new aggregated estimate whose pointwise risk does not exceed the smallest risk among all "weak" estimates multiplied by some logarithmic factor. We establish a number of important theoretical results concerning optimality of the aggregated estimate and show a good performance of the procedure in simulated examples.
Additional file 1 of Depleting TMED3 alleviates the development of endometrial carcinoma
Creators: name: Zhang, Jin
name: Qi, Yue
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 1: Table S1 Antibodies involved in western blotting-based assay in this study.
Enhanced policy iteration for American options via scenario selection
Creators: name: Bender, Christian
name: Kolodko, Anastasia
name: Schoenmakers, John G. M.
Publisher: name: Weierstrass Institute
Year: 2005
Subjects: subject: American options
subject: Monte Carlo simulation
subject: optimal stopping
subject: policy improvement
subject: 60G40
subject: 62L15
subject: 91B28

description: In Kolodko & Schoenmakers (2004) and Bender & Schoenmakers (2004) a policy iteration was introduced which allows to achieve tight lower approximations of the price for early exercise options via a nested Monte-Carlo simulation in a Markovian setting. In this paper we enhance the algorithm by a scenario selection method. It is demonstrated by numerical examples that the scenario selection can significantly reduce the number of actually performed inner simulations, and thus can heavily speed up the method (up to factor 10 in some examples). Moreover, it is shown that the modified algorithm retains the desirable properties of the original one such as the monotone improvement property, termination after a finite number of iteration steps, and numerical stability.
Performance Analysis of Algorithms for NavIC Signal Acquisition
Creators: name: N. Alivelu Manga
Publisher: name: Zenodo
Year: 2021
Subjects: IRNSS
NavIC
acquisition
parallel code phase search algorithm
serial search acquisition algorithm
ssFFT
Cooley-Tukey FFT

description: Indian Space Research Organization (ISRO) developed and designed the Indian Regional Navigation Satellite System (IRNSS), an indigenous navigation system.It is named as NavIC, Navigation with Indian Constellation by Indian Prime Minister. NavIC is a seven-satellite constellation that will offer India with accurate positioning, navigation, and timing services. The focal modules of NavIC receiver are acquisition, tracking and navigation unit. The data processing unit for recognising satellite signals and their related code phase and carrier frequency is called acquisition. Various acquisition strategies, such as Serial search and Parallel Code Phase search algorithms, are explored and contrasted with Cooley-Tukey FFT and sub-sampled Fast Fourier transform techniques in this chapter (ssFFT). The acquisition computation time for a ssFFT based NavIC receiver is faster than parallel FFT acquisition, and the Cooley-Tukey FFT IRNSS acquisition algorithm is faster and offers better code phase and carrier frequency values than the serial search acquisition approach, according to the results obtained in MATLAB. Reduction in the acquisition time and computation complexity is observed by the exploitation of properties of sparse FFT, Fourier transform and decimator and by the use of sub sampled FFT.
Information Technology Adoption & Procedural Performance in Health Care Industry
Creators: name: Yunfeng  Shi
Publisher: name: Carnegie Mellon University
Year: 2010
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: The initial ideas concerning the usage and potential of informational technologies in health care can be traced back to the 1950s (Staropoli, 2008), whereas the earliest adoptions of practical systems by hospitals followed about a decade later, in the mid-1960s (Wager, Lee and Glaser, 2005). Since then, while significant advancements have happened in the adoption and usage of IT in health care, both in terms of scale and scope, such advancements have been considered slow and unaggressive compared to the same process in other industries (Bowser, 2005). At the same time, especially since the 1990s, the spending on IT in the health care industry has increased to a significant amount, both in terms of the total spending and the percentage of the output of the sector. However, as IT adoption and renovation have become an important part on many hospitals’ agenda, the debate over their effectiveness and efficiency has also come to the front stage, not only for the health care industry, but also for the policy makers from the government and the concerned public in general. My dissertation work intends to contribute to the understanding of Health Care IT adoption and its impact. Although it is certainly beyond the scope of this project to reach any unambiguous conclusions to the above questions, I expect my research to add important insights to the existing literature. This dissertation examines two topics relevant to information technologies in health care industry. (1) The status and change of integrated health care delivery system level IT spending and hospital level IT adoption between 1999 and 2006. (2) The potential link between hospital level IT adoptions and quality as quantified by procedural performance measure. The two chapters of this dissertation cover those two topics respectively.
Trischistoma monhystera Sch. Stekhoven 1951
Creators: name: Zullini, Aldo
Publisher: name: Zenodo
Year: 1978
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Enoplea
Enoplida
Trischistomatidae
Trischistoma
Trischistoma monhystera

description: 16. TRISCHISTOMA MONHYSTERA (de Man 1880) Sch. Stekhoven 1951
 ♂: L =1, 54 mm;a= 74;b =?;c= 15, c' =6.
 c' z
›
Stazione 1.
Di questa specie sono stati trovati degli esemplari maschi, di solito molto più rari delle femmine.
description: Published as part of Zullini, Aldo, 1978, Nematodi liberi dell'Isola di Tavolara (Sardegna), pp. 67-76 in ACCADEMIA NAZIONALE DEI XL Estratto dai Rendiconti III (V) on page 73, DOI: 10.5281/zenodo.10814862
Towards extracting the timelike pion form factor on CLS two-flavour ensembles
Creators: name: Erben, Felix
name: Green, Jeremy
name: Mohler, Daniel
name: Wittig, Hartmut
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Results are presented from an ongoing study of the $ρ$ resonance. The focus is on CLS 2-flavour ensembles generated using $\mathcal{O}(a)$ improved Wilson fermions with pion masses ranging from $265$ to $437$ $\mathrm{MeV}$. The energy levels are extracted by solving the GEVP of correlator matrices, created with the distillation approach involving $ρ$ and $ππ$ interpolators. The study is done in the centre-of-mass frame and several moving frames. One aim of this work is to extract the timelike pion form factor after applying the Lüscher formalism. We therefore plan to integrate this study with the existing Mainz programme for the calculation of the hadronic vacuum polarization contribution to the muon $g-2$.
description: proceedings to conference: Lattice 2017, Granada, Spain
Regularity of elastic fields in composites
Creators: name: Knees, Dorothee
name: Sändig, Anna-Margarete
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: regularity
subject: elasticity
subject: composite
subject: stress singularity
subject: Ramberg-Osgod model
subject: 35B65
subject: 74B05
subject: 35L55
subject: 35J60
subject: 49N60
subject: 74B20
subject: 74R10

description: It is well known that high stress concentrations can occur in elastic composites in particular due to the interaction of geometrical singularities like corners, edges and cracks and structural singularities like jumping material parameters. In the project C5 "Stress concentrations in heterogeneous materials" of the SFB 404 "Multifield Problems in Solid and Fluid Mechanics" it was mathematically analyzed where and which kind of stress singularities in coupled linear and nonlinear elastic structures occur. In the linear case asymptotic expansions near the geometrical and structural peculiarities are derived, formulae for generalized stress intensity factors included. In the nonlinear case such expansions are unknown in general and regularity results are proved for elastic materials with power-law constitutive equations with the help of the difference quotient technique combined with a quasi-monotone covering condition for the subdomains and the energy densities. Furthermore, some applications of the regularity results to shape and structure optimization and the Griffith fracture criterion in linear and nonlinear elastic structures are discussed. Numerical examples illustrate the results.
Supplementary Information, Figures S1 - S3, Tables S1 - S9 from Ancient mitogenomes show plateau populations from last 5200 years partially contributed to present-day Tibetans
Creators: name: Ding, Manyu
name: Wang, Tianyi
name: Ko, Albert Min-Shan
name: Chen, Honghai
name: Wang, Hui
name: Dong, Guanghui
name: Lu, Hongliang
name: He, Wei
name: Wangdue, Shargan
name: Yuan, Haibing
name: He, Yuanhong
name: Cai, Linhai
name: Chen, Zujun
name: Hou, Guangliang
name: Zhang, Dongju
name: Zhang, Zhaoxia
name: Cao, Peng
name: Dai, Qingyan
name: Feng, Xiaotian
name: Zhang, Ming
name: Wang, Hongru
name: Yang, Melinda A.
name: Fu, Qiaomei
Publisher: name: The Royal Society
Year: 2020

description: Supplementary Information
Existence and stability of solutions with periodically moving weak internal layers
Creators: name: Butuzov, Valentin F.
name: Nefedov, Nikolai N.
name: Recke, Lutz
name: Schneider, Klaus R.
Publisher: name: Weierstrass Institute
Year: 2008
Subjects: subject: singularly perturbed reaction diffusion equation
subject: periodic boundary value
subject: problem
subject: boundary layers
subject: 35B25
subject: 35B10
subject: 35K57
subject: 35K20

description: We consider the periodic parabolic differential equation $ep^2 Big( fracpartial^2 upartial x^2 -fracpartial upartial t Big)=f(u,x,t,ep)$ under the assumption that $ve$ is a small positive parameter and that the degenerate equation $f(u,x,t,0) =0$ has two intersecting solutions. We derive conditions such that there exists an asymptotically stable solution $u_p(x,t,ep)$ which is $T$-periodic in $t$, satisfies no-flux boundary conditions and tends to the stable composed root of the degenerate equation as $eprightarrow 0$.
Information Discovery and the Long Tail of Motion Picture Content
Creators: name: Anuj  Kumar
name: Smith, Michael
name: Telang, Rahul
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Recent papers have shown that, in contrast to “the Long Tail” theory, movie sales remain concentrated in a small number of hits. These papers have argued that concentrated sales can be explained, in part, by heterogeneity in quality and increasing returns from social effects. Our research analyzes an additional explanation: how incomplete information may skew sales patterns. We use the movie broadcast on pay-cable channels as an exogenous shock to the availability of information, and analyze how this shock changes the resulting sales distribution.

Our data show that the pay-cable broadcast shifts the distribution of DVD sales toward “Long Tail” movies, suggesting an information spillover from the broadcast. We further develop a learning-based model of DVD demand to precisely quantify the lost DVD sales due to incomplete information. Our study contributes to the academic literature on information provision and market outcomes, and the dynamics of long tail markets.
Cerocatus tarsalis Rondani 1848
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Scenopinidae
Cerocatus
Cerocatus tarsalis

description: Cerocatus tarsalis Rondani, 1848
ORIGINAL DESCRIPTION: 1848b: 99.
 TYPE LOCALITY: “ Brasile [Brazil]” (Rondani 1848b: 63); Belem (Pará), Brazil (Papavero (1973: 343).
 TYPE MATERIAL: 1 ♀, syntype (missing wings and mid-legs, antennae broken) (MZUN: Box Asilidei A 05, 04): Cerocatus tarsalis Rnd., Brasile / M. Zool. N° 11518.
 CURRENT STATUS: valid species (Hardy 1966b: 1, Kelsey 1969: 1, Webb et al. 2013: 33).
 REMARKS: Rondani (1848b: 99) described Cerocatus tarsalis, without specifying either the number or the sex of the specimens, but giving a single measurement of length, from material collected in South America by V. Ghiliani. Costa (1866: 38) listed a single MZUN specimen numbered “866”. We also found one syntype in this study. This nominal species was thought to belong to the family Scenopinidae (Hardy, 1966b); Kelsey (1969:1) placed Cerocatus tarsalis in Therevidae. Although Rondani (1848b: 99) only gave the type locality as “ Brasile ”, Papavero (1973: 343) gave a more accurate type locality based on a note in Spinola (1853) that said all specimens collected by Ghiliani in 1846 were collected in Belem, Pará, Brazil.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 382, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
Monhystera villosa Bütschli 1873
Creators: name: Zullini, Aldo
Publisher: name: Zenodo
Year: 1978
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Chromadorea
Monhysterida
Monhysteridae
Monhystera
Monhystera villosa

description: 15. MONHYSTERA VILLOSA Bütschli 1873
 ♀: L = 0,73-0,79 mm; a = 35-42; b: = 5, 2-5,4 4; c = 7 7,2 › 2- -7,4 7 z 4- š; V = 81 - 8 82 2 %;; c c' c' = 7,3; dıstanza vulva-ano/coda = 0,38; anﬁdi-estremítà anteriore/Iarghezza cefalica = 2,2; lunghezza esofagea/larghezza del corpo al cardıa = 9,2.
Stazioni 2, 4, 6 e 9.
Specie comune e ad ampia distribuzione, soprattutto nei biotopi non troppo umidi.
description: Published as part of Zullini, Aldo, 1978, Nematodi liberi dell'Isola di Tavolara (Sardegna), pp. 67-76 in ACCADEMIA NAZIONALE DEI XL Estratto dai Rendiconti III (V) on page 73, DOI: 10.5281/zenodo.10814862
Iterative construction of the optimal Bermudan stopping time
Creators: name: Kolodko, Anastasia
name: Schoenmakers, John G. M.
Publisher: name: Weierstrass Institute
Year: 2004
Subjects: subject: Bermudan options
subject: optimal stopping
subject: Monte Carlo simulation
subject: LIBOR market model
subject: 62L15
subject: 65C05
subject: 91B228

description: We present an iterative procedure for computing the optimal Bermudan stopping time. We prove convergence and, as a consequence, the method allows for approximation of the Snell envelope from below. By using duality, we then deduce a convergent procedure for approximating the Snell envelope from above as well. We provide numerical examples for Bermudan swaptions in the context of a LIBOR market model.
Beyond Complex Langevin Equations: positive representation of a class of complex measures
Creators: name: Seiler, Erhard
name: Wosiek, Jacek
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: A positive representation for a set of complex densities is constructed. In particular, complex measures on a direct product of U(1) groups are studied. After identifying general conditions which such representations should satisfy, several explicit realizations are proposed. Their utility is illustrated in few concrete examples representing problems in abelian lattice gauge theories.
description: 10 pages, 3 figures
Tylenchus davainei Bastian 1865
Creators: name: Zullini, Aldo
Publisher: name: Zenodo
Year: 1978
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Chromadorea
Rhabditida
Tylenchidae
Tylenchus
Tylenchus davainei

description: 1. TYLENCHUS DAVAINEI Bastian 1865
 ♀: L= 0,56 mm; a= 27; b= 7,0; c= 7,0; V= 61 %; stiletto 16 μ.
Stazione 6.
description: Published as part of Zullini, Aldo, 1978, Nematodi liberi dell'Isola di Tavolara (Sardegna), pp. 67-76 in ACCADEMIA NAZIONALE DEI XL Estratto dai Rendiconti III (V) on page 68, DOI: 10.5281/zenodo.10814862
Increasing Consolidation in Health Care Markets: What are the Antitrust Policy Implications?
Creators: name: Haas-Wilson, Deborah
name: Gaynor, Martin
Publisher: name: Carnegie Mellon University
Year: 1997
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Heinz College paper
Another Formula for the Charged Lepton Masses
Creators: name: Koide, Yoshio
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A charged lepton mass formula $(m_e +m_μ+ m_τ)/(\sqrt{m_e}+\sqrt{m_μ} + \sqrt{m_τ})^2 =2/3$ is well-known. Since we can, in general, have two relations for three quantities, we may also expect another relation for the charged lepton masses. Then, the relation will be expressed by a form of $\sqrt{m_e m_μm_τ}/(\sqrt{m_e}+\sqrt{m_μ} + \sqrt{m_τ})^3$. According to this conjecture, a scalar potential model is speculated.
description: 5 pages, no figure; a typo in Eq.(7) corrected
Chemical relaxation time of pions in hot hadronic matter
Creators: name: Song, Chungsik
name: Koch, Volker
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We calculate characteristic time scales for chemical equilibration of pions in hot hadronic matter using an effective chiral Lagrangian. We find that inelastic processes involving the vector and axial vector mesons reduce the chemical equilibration time by a factor of $\sim 10$ compared to the result previously calculated in chiral perturbation theory. For a temperature of $T\sim 150 MeV$ we obtain a chemical relaxation time of $τ_{ch} \simeq 10 fm/c$, which is comparable with typical time scales for a hadronic system generated in SPS-energy heavy ion collisions. The effect of baryons is also estimated and found to be negligible for SPS-energies but important for AGS-energies. We predict, that chemical freeze-out should take place at considerable higher temperatures $ΔT \simeq 20 MeV$ than thermal freeze-out and that the hadronic phase would not sustain a pion chemical potential larger than $100 MeV$.
description: (include Tex source file)
Longitudinal modes of multisection semiconductor lasers and their dynamics
Creators: name: Radziunas, Mindaugas
name: Wünsche, Hans-Jürgen
Publisher: name: Weierstrass Institute
Year: 2004
Subjects: subject: semiconductor laser
subject: modes
subject: spectral expansion
subject: bifurcations
subject: dynamics
subject: self-pulsations
subject: 65Z05
subject: 65N25
subject: 78A60
subject: 34L16
subject: 35P10

description: We simulate and analyse a 1D-PDE model describing the dynamics of multisection semiconductor lasers. We demonstrate how a semi-analytical computation of the spectrum and the corresponding eigenfunction expansion of the computed solutions provides a useful information allowing to achieve a better understanding of the laser dynamics. Basic algorithms implemented into a corresponding software tool are described.
Quantum dot with ferromagnetic leads: a density-matrix renormalization group study
Creators: name: Gazza, C. J.
name: Torio, M. E.
name: Riera, J. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A quantum dot coupled to ferromagnetically polarized one-dimensional leads is studied numerically using the density matrix renormalization group method. Several real space properties and the local density of states at the dot are computed. It is shown that this local density of states is suppressed by the parallel polarization of the leads. In this case we are able to estimate the length of the Kondo cloud, and to relate its behavior to that suppression. Another important result of our study is that the tunnel magnetoresistance as a function of the quantum dot on-site energy is minimum and negative at the symmetric point.
description: 4 pages including 5 figures. To be published as a Brief Report in Phys. Rev. B
Fractal and multifractal analysis of complex networks: Estonian network of payments
Creators: name: de la Torre, Stephanie Rendón
name: Kalda, Jaan
name: Kitt, Robert
name: Engelbrecht, Jüri
Publisher: name: arXiv
Year: 2017
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Complex networks have gained much attention from different areas of knowledge in recent years. Particularly, the structures and dynamics of such systems have attracted considerable interest. Complex networks may have characteristics of multifractality. In this study, we analyze fractal and multifractal properties of a novel network: the large scale economic network of payments of Estonia, where companies are represented by nodes and the payments done between companies are represented by links. We present a fractal scaling analysis and examine the multifractal behavior of this network by using a sandbox algorithm. Our results indicate the existence of multifractality in this network and consequently, the existence of multifractality in the Estonian economy. To the best of our knowledge, this is the first study that analyzes multifractality of a complex network of payments.
description: 13 pages
PT-Symmetric Quantum Theory Defined in a Krein Space
Creators: name: Tanaka, Toshiaki
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We provide a mathematical framework for PT-symmetric quantum theory, which is applicable irrespective of whether a system is defined on R or a complex contour, whether PT symmetry is unbroken, and so on. The linear space in which PT-symmetric quantum theory is naturally defined is a Krein space constructed by introducing an indefinite metric into a Hilbert space composed of square integrable complex functions in a complex contour. We show that in this Krein space every PT-symmetric operator is P-Hermitian if and only if it has transposition symmetry as well, from which the characteristic properties of the PT-symmetric Hamiltonians found in the literature follow. Some possible ways to construct physical theories are discussed within the restriction to the class K(H).
description: 8 pages, no figures; Refs. added, minor revision
Current coupling of drift-diffusion models and dissipative Schrödinger--Poisson systems: Dissipative hybrid models
Creators: name: Baro, Michael
name: Neidhardt, Hagen
name: Rehberg, Joachim
Publisher: name: Weierstrass Institute
Year: 2004
Subjects: subject: semi-conductors
subject: quantum-classical coupling
subject: hybrid models
subject: drift-diffusion models
subject: dissipative Schrödinger systems
subject: Poisson equation
subject: current coupling
subject: 47B44
subject: 47E05
subject: 35J05
subject: 73.23.-b
subject: 73.23.Ad
subject: 73.63.-b
subject: 73.63.Nm

description: A 1D coupled drift-diffusion dissipative Schrödinger model (hybrid model), which is capable to describe the transport of electrons and holes in semi-conductor devices in a non-equilibrium situation, is mathematically analyzed. The device domain is split into a part where the transport is well-described by the drift-diffusion equations (classical zone) and a part where a quantum description via a dissipative Schrödinger system (quantum zone) is used. Both system are coupled such that the continuity of the current densities is guaranteed. The electrostatic potential is self-consistently determined by Poisson's equation on the whole device. We show that the hybrid model is well-posed, prove existence of solutions and show their uniform boundedness provided the distribution function satisfy a so-called balance condition. The current densities are different from zero in the non-equilibrium case and uniformly bounded.
The Physical Conditions of the X-ray Emission Line Regions in the Circinus Galaxy
Creators: name: Sako, Masao
name: Kahn, Steven M.
name: Paerels, Frits
name: Liedahl, Duane A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a detailed X-ray spectral analysis of the Circinus Galaxy using archival data obtained with the ASCA satellite. The spectrum shows numerous emission lines in the soft X-ray band from highly ionized ions, as well as Compton reflection and fluorescent lines from neutral or near-neutral matter. We analyze the spectrum in the context of a self-consistent recombination cascade model and find that a nearly flat differential emission measure (DEM) distribution in ionization parameter fits the data. For a fixed solid angle distribution of matter surrounding a point source, this corresponds to a run of electron density of the form, n(r) ~ r^(-3/2), which is suggestive of Bondi accretion onto a central compact mass. Using this density profile and comparing the resulting emission spectra with the ASCA data, the size of the X-ray emission line region is estimated to be < 1 kpc. We also show that the derived density as a function of radius is compatible with the X-ray recombination line emission region being the confining medium of the coronal line regions.
description: 21 pages including 8 figures and 4 tables; accepted for publication to the Astrophysical Journal
Incentives in HMOs
Creators: name: Gaynor, Martin
name: Rebitzer, James B.
name: Taylor, Lowell J.
Publisher: name: Carnegie Mellon University
Year: 2002
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: We study the effect of physician incentives in an HMO network. Physician incentives are controversial because they may induce doctors to make treatment decisions that differ from those they would chose in the absence of incentives. We set out a theoretical framework for assessing the degree to which incentive contracts do in fact induce physicians to deviate from a standard guided only by patient interests and professional medical judgement. Our empirical evaluation of the model relies on details of the HMO’s incentive contracts and access to the firm’s internal expenditure records. We estimate that the HMO’s incentive contract provides a typical physician an increase, at the margin, of $0.10 in income for each $1.00 reduction in medical utilization expenditures. The average response is a 5 percent reduction in medical expenditures. We also find suggestive evidence that financial incentives linked to commonly used “quality” measures may stimulate an improvement in measured quality.
title: Design & implementation of a low-cost bidirectional embedded backscatter link
title: Σχεδίαση & υλοποίηση χαμηλού κόστους αμφίδρομης ενσωματωμένης ζεύξης οπισθοσκέδασης
Creators: name: Βασιλακοπουλος Παναγιωτης
Publisher: name: Technical University of Crete
Year: 2021

description: This work exploits low-cost, low-power and innovative hardware solutions for bidirectional backscatter links at 2.4 GHz. Moreover, a custom backscatter tag for sensing and RFID application is designed and implemented, able to send data up to 60 meters away with packet error rate (PER) in the order of 3.7%. The tag is also capable of receiving data and its power consumption can be less than 0.27 mW for 4.5 seconds of continuous operation. The tag cost per unit does not surpass 5 Euros. The receiver of the tag is based on a custom, comparator-based design, using on-off keying (OOK) modulation. In addition, a solar energy harvesting system is designed, offering an energy-autonomous link. Based on this tag, a prototype environmental humidity sensor node is implemented and demonstrated.