cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamics of the family $λ$ tangent $z^2$
Creators: name: Nandi, Santanu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: This article discusses some topological properties of the dynamical plane ($z$-plane) of the holomorphic family of meromorphic maps $λ\tan z^2$ for $ λ\in \mathbb C^*$. In the dynamical plane, I prove that there is no Herman ring and the Julia set is a Cantor set for the maps when the parameter is in the hyperbolic component containing the origin. Julia set is connected for the maps when the parameters are in other hyperbolic components in the parameter plane.
description: Need to revise throughly
Current-induced giant diamagnetism in the Mott insulator Ca2RuO4
Creators: name: Sow, Chanchal
name: Yonezawa, Shingo
name: Kitamura, Sota
name: Oka, Takashi
name: Kuroki, Kazuhiko
name: Nakamura, Fumihiko
name: Maeno, Yoshiteru
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Mott insulators have surprised us many times by hosting new and diverse quantum phenomena when the frozen electrons are perturbed by various stimuli. Superconductivity, metal-insulator transition, and colossal magnetoresistance induced by element substitution, pressure, and magnetic field are prominent examples. Here we report a novel phenomenon, namely giant diamagnetism, in the Mott insulator Ca2RuO4 induced by electric current. With application of 1 A/cm2 current, the strongest diamagnetism among all nonsuperconducting materials is induced as the system is tuned to a semimetallic state. The origin lies in the emergence of indirect Dirac cones in the many-body spectrum and associated monopole-like anomaly in the momentum dependent susceptibility. This record-breaking and switchable diamagnetism is a new class of non-equilibrium quantum phenomena on the verge of Mott insulating states.
description: 14 pages, 4 figures, plus supplementary materials (11 pages, 6 figures)
Weakly interacting oscillators on dense random graphs
Creators: name: Bet, Gianmarco
name: Coppini, Fabio
name: Nardi, Francesca R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We consider a class of weakly interacting particle systems of mean-field type. The interactions between the particles are encoded in a graph sequence, i.e., two particles are interacting if and only if they are connected in the underlying graph. We establish a Law of Large Numbers for the empirical measure of the system that holds whenever the graph sequence is convergent in the sense of graph limits theory, i.e., to a graphon. The limit is shown to be the solution of a non-linear Fokker-Planck equation weighted by the (possibly random) graphon limit. In contrast with the existing literature, our analysis focuses on unlabeled graphons: no regularity assumptions are made on the graph limit and we are able to include general graph sequences such as exchangeable random graphs. Finally, we identify the sequences of graphs, both random and deterministic, for which the associated empirical measure converges to the mean-field limit, i.e., to the solution of a classical McKean-Vlasov equation.
description: 26 pages
Experimental quantum key distribution secure against malicious devices
Creators: name: Li, Wei
name: Zapatero, Victor
name: Tan, Hao
name: Wei, Kejin
name: Min, Hao
name: Liu, Wei-Yue
name: Jiang, Xiao
name: Liao, Sheng-Kai
name: Peng, Cheng-Zhi
name: Curty, Marcos
name: Xu, Feihu
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The fabrication of quantum key distribution (QKD) systems typically involves several parties, thus providing Eve with multiple opportunities to meddle with the devices. As a consequence, conventional hardware and/or software hacking attacks pose natural threats to the security of practical QKD. Fortunately, if the number of corrupted devices is limited, the security can be restored by using redundant apparatuses. Here, we report on the demonstration of a secure QKD setup with optical devices and classical post-processing units possibly controlled by an eavesdropper. We implement a 1.25 GHz chip-based measurement-device-independent QKD system secure against malicious devices on \emph{both} the measurement and the users' sides. The secret key rate reaches 137 bps over a 24 dB channel loss. Our setup, benefiting from high clock rate, miniaturized transmitters and a cost-effective structure, provides a promising solution for widespread applications requiring uncompromising communication security.
description: 28 pages, 5 figures, 4 tables
Neurotrophin signalling in amygdala-dependent cued fear learning
Creators: name: Meis, Susanne
name: Endres, Thomas
name: Leßmann, Volkmar
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2020
Subjects: subject: Amygdala
subject: LTP
subject: Fear
subject: Extinction
subject: BDNF
subject: GABA
subject: 610.72

description: The amygdala is a central hub for fear learning assessed by Pavlovian fear conditioning. Indeed, the prevailing hypothesis that learning and memory are mediated by changes in synaptic strength was shown most convincingly at thalamic and cortical afferents to the lateral amygdala. The neurotrophin brain-derived neurotrophic factor (BDNF) is known to regulate synaptic plasticity and memory formation in many areas of the mammalian brain including the amygdala, where BDNF signalling via tropomyosin-related kinase B (TrkB) receptors is prominently involved in fear learning. This review updates the current understanding of BDNF/TrkB signalling in the amygdala related to fear learning and extinction. In addition, actions of proBDNF/ p75NTR and NGF/TrkA as well as NT-3/TrkC signalling in the amygdala are introduced.
On the Classification of UGC1382 as a Giant Low Surface Brightness Galaxy
Creators: name: Hagen, Lea M. Z.
name: Seibert, Mark
name: Hagen, Alex
name: Nyland, Kristina
name: Neill, James D.
name: Treyer, Marie
name: Young, Lisa M.
name: Rich, Jeffrey A.
name: Madore, Barry F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We provide evidence that UGC1382, long believed to be a passive elliptical galaxy, is actually a giant low surface brightness (GLSB) galaxy which rivals the archetypical GLSB Malin 1 in size. Like other GLSB galaxies, it has two components: a high surface brightness disk galaxy surrounded by an extended low surface brightness (LSB) disk. For UGC1382, the central component is a lenticular system with an effective radius of 6 kpc. Beyond this, the LSB disk has an effective radius of ~38 kpc and an extrapolated central surface brightness of ~26 mag/arcsec^2. Both components have a combined stellar mass of ~8x10^10 M_sun, and are embedded in a massive (10^10 M_sun) low-density (<3 M_sun/pc^2) HI disk with a radius of 110 kpc, making this one of the largest isolated disk galaxies known. The system resides in a massive dark matter halo of at least 2x10^12 M_sun. Although possibly part of a small group, its low density environment likely plays a role in the formation and retention of the giant LSB and HI disks. We model the spectral energy distributions and find that the LSB disk is likely older than the lenticular component. UGC1382 has UV-optical colors typical of galaxies transitioning through the green valley. Within the LSB disk are spiral arms forming stars at extremely low efficiencies. The gas depletion time scale of ~10^11 yr suggests that UGC1382 may be a very long term resident of the green valley. We find that the formation and evolution of the LSB disk is best explained by the accretion of gas-rich LSB dwarf galaxies.
description: 17 pages, 16 figures, 4 tables; accepted to the Astrophysical Journal
Finite element error estimates on geometrically perturbed domains
Creators: name: Minakowski, Piotr
name: Richter, Thomas
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2020
Subjects: subject: Perturbed domains
subject: Finite elements
subject: Error estimates
subject: 510.72

description: We develop error estimates for the finite element approximation of elliptic partial differential equations on perturbed domains, i.e. when the computational domain does not match the real geometry. The result shows that the error related to the domain can be a dominating factor in the finite element discretization error. The main result consists of H1- and L2-error estimates for the Laplace problem. Theoretical considerations are validated by a computational example.
Stein characterizations for linear combinations of gamma random variables
Creators: name: Arras, Benjamin
name: Azmoodeh, Ehsan
name: Poly, Guillaume
name: Swan, Yvik
Publisher: name: arXiv
Year: 2017
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60F05, 60G50, 60G15, 60H07

description: In this paper we propose a new, simple and explicit mechanism allowing to derive Stein operators for random variables whose characteristic function satisfies a simple ODE. We apply this to study random variables which can be represented as linear combinations of (non necessarily independent) gamma distributed random variables. The connection with Malliavin calculus for random variables in the second Wiener chaos is detailed. An application to McKay Type I random variables is also outlined.
description: This corresponds to the second section of arXiv:1601.03301 . New results added and applications provided
Local thermomagnonic torques in two-fluid spin dynamics
Creators: name: Flebus, Benedetta
name: Upadhyaya, Pramey
name: Duine, Rembert A.
name: Tserkovnyak, Yaroslav
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop a general phenomenology describing the interplay between coherent and incoherent dynamics in ferromagnetic insulators. Using the Onsager reciprocity and Neumann's principle, we derive expressions for the local thermomagnonic torques exerted by thermal magnons on the order-parameter dynamics and the reciprocal pumping processes, which are in close analogy to the spin-transfer torque and spin pumping at metallic interfaces. Our formalism is applicable to general long-wavelength dynamics and, although here we explicitly focus on ferromagnetic insulators possessing U(1) symmetry, our approach can be easily extended to other classes of magnetic materials. As an illustrative example, we apply our theory to investigate a domain wall floating over a spin superfluid, whose dynamics is triggered thermally at the system's edge. Our results demonstrate that the local pumping of coherent spin dynamics by a thermal magnon gas offers an alternative route - with no need for conducting components and thus devoid of Ohmic losses - for the control and manipulation of topological solitons.
Nuclear Zemach Moments and Finite-Size Corrections to Allowed Beta Decay
Creators: name: Wang, X. B.
name: Friar, J. L.
name: Hayes, A. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The finite-size correction to $β$-decay plays an important role in determining the expected antineutrino spectra from reactors at a level that is important for the reactor-neutrino anomaly. Here we express the leading-order finite-size correction to allowed $β$-decay in terms of Zemach moments. We calculate the Zemach moments within a Hartree-Fock model using a Skyrme-like energy density functional. We find that the Zemach moments are increased relative to predictions based on the simple assumption of identical uniform nuclear-charge and weak-transition densities. However, for allowed ground-state to ground-state transitions in medium and heavy nuclei, the detailed nuclear structure calculations do not change the finite-size corrections significantly from the simple model predictions, and are only 10-15% larger than the latter even though the densities differ significantly.
Stability of a Nonlocal Traffic Flow Model for Connected Vehicles
Creators: name: Huang, Kuang
name: Du, Qiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: The emerging connected and automated vehicle technologies allow vehicles to perceive and process traffic information in a wide spatial range. Modeling nonlocal interactions between connected vehicles and analyzing their impact on traffic flows become important research questions to traffic planners. This paper considers a particular nonlocal LWR model that has been studied in the literature. The model assumes that vehicle velocities are controlled by the traffic density distribution in a nonlocal spatial neighborhood. By conducting stability analysis of the model, we obtain that, under suitable assumptions on how the nonlocal information is utilized, the nonlocal traffic flow is stable around the uniform equilibrium flow and all traffic waves dissipate exponentially. Meanwhile, improper use of the nonlocal information in the vehicle velocity selection could result in persistent traffic waves. Such results can shed light to the future design of driving algorithms for connected and automated vehicles.
description: 23 pages, 5 figures
One step replica symmetry breaking and extreme order statistics of logarithmic REMs
Creators: name: Cao, Xiangyu
name: Fyodorov, Yan V.
name: Doussal, Pierre Le
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Building upon the one-step replica symmetry breaking formalism, duly understood and ramified, we show that the sequence of ordered extreme values of a general class of Euclidean-space logarithmically correlated random energy models (logREMs) behave in the thermodynamic limit as a randomly shifted decorated exponential Poisson point process. The distribution of the random shift is determined solely by the large-distance ("infra-red", IR) limit of the model, and is equal to the free energy distribution at the critical temperature up to a translation. the decoration process is determined solely by the small-distance ("ultraviolet", UV) limit, in terms of the biased minimal process. Our approach provides connections of the replica framework to results in the probability literature and sheds further light on the freezing/duality conjecture which was the source of many previous results for log-REMs. In this way we derive the general and explicit formulae for the joint probability density of depths of the first and second minima (as well its higher-order generalizations) in terms of model-specific contributions from UV as well as IR limits. In particular, we show that the second min statistics is largely independent of details of UV data, whose influence is seen only through the mean value of the gap. For a given log-correlated field this parameter can be evaluated numerically, and we provide several numerical tests of our theory using the circular model of $1/f$-noise.
description: 44 pages, 6 figures
Integrals of functions containing parameters
Creators: name: Corless, Robert M.
name: Jeffrey, David J.
name: Stoutemyer, David R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics
subject: 28-00, 26-A06

description: This paper offers what seems at first to be a minor technical correction to the current practice of computing indefinite integrals, and introduces the idea of a "Kahanian constant of integration". However, the total impact of this minor correction is potentially large because the current practice is taught early at the university level and to very many students---most of whom do not go on to become mathematics majors. Moreover, computer algebra systems have become widespread, including good free ones, some of which are available for smartphones. Most current computer algebra systems apply current textbook rules and amplify the effects of fundamental "minor" errors such as the error in continuity that we address in this article. So in practice, the correction we present is important.
description: Two colour figures in this arxiv version, and a link to a relevant Non Sequitur cartoon
Foreground Bias From Parametric Models of Far-IR Dust Emission
Creators: name: Kogut, A.
name: Fixsen, D. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use simple toy models of far-IR dust emission to estimate the accuracy to which the polarization of the cosmic microwave background can be recovered using multi-frequency fits, if the parametric form chosen for the fitted dust model differs from the actual dust emission. Commonly used approximations to the far-IR dust spectrum yield CMB residuals comparable to or larger than the sensitivities expected for the next generation of CMB missions, despite fitting the combined CMB + foreground emission to precision 0.1% or better. The Rayleigh-Jeans approximation to the dust spectrum biases the fitted dust spectral index by Delta beta_d = 0.2 and the inflationary B-mode amplitude by Delta r = 0.03. Fitting the dust to a modified blackbody at a single temperature biases the best-fit CMB by Delta r > 0.003 if the true dust spectrum contains multiple temperature components. A 13-parameter model fitting two temperature components reduces this bias by an order of magnitude if the true dust spectrum is in fact a simple superposition of emission at different temperatures, but fails at the level Delta r = 0.006 for dust whose spectral index varies with frequency. Restricting the observing frequencies to a narrow region near the foreground minimum reduces these biases for some dust spectra but can increase the bias for others. Data at THz frequencies surrounding the peak of the dust emission can mitigate these biases while providing a direct determination of the dust temperature profile.
description: 9 pages including 8 figures. Accepted for publication in The Astrophysical Journal
Hiltrud Rüstau, Katja Eichner: Chhattisgarh: Schatzkammer Indiens – Ein kulturhistorisches Reisebuch
Creators: name: Wessler, Heinz Werner
Publisher: name: Südasien
Year: 2022

description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten
Preconditioning of a hybridized discontinuous Galerkin finite element method for the Stokes equations
Creators: name: Rhebergen, Sander
name: Wells, Garth N.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65F08, 65N30

description: We present optimal preconditioners for a recently introduced hybridized discontinuous Galerkin finite element discretization of the Stokes equations. Typical of hybridized discontinuous Galerkin methods, the method has degrees-of-freedom that can be eliminated locally (cell-wise), thereby significantly reducing the size of the global problem. Although the linear system becomes more complex to analyze after static condensation of these element degrees-of-freedom, the pressure Schur complement of the original and reduced problem are the same. Using this fact, we prove spectral equivalence of this Schur complement to two simple matrices, which is then used to formulate optimal preconditioners for the statically condensed problem. Numerical simulations in two and three spatial dimensions demonstrate the good performance of the proposed preconditioners.
IPBES Technical Guideline Series - Part 3: Cartographic Guidelines
Creators: name: Kumagai, Joy
name: Niamir, Aidin
name: IPBES Task Force On Knowledge And Data
Publisher: name: Zenodo
Year: 2022
Subjects: IPBES

description: These technical guidelines have been prepared by the technical support unit on knowledge and data and reviewed by the task force on knowledge and data within IPBES. The approved version of these guidelines are available at https://ict.ipbes.net/data-management/technical-guidelines Part 3 of the geoinformatics technical guideline series, Cartographic Guidelines, will review the necessary and suggested cartographic elements for maps produced as part of IPBES assessments. The guide is split into three components, cartographic elements, disclaimers, and general suggestions and have examples of maps and the code behind them throughout. If interested, all source files are also available on my GitHub. For any questions, feedback, or suggestions for future guidelines, contact tsu.data@ipbes.net
description: The designations employed and the presentation of material on the maps used in the assessment do not imply the expression of any opinion whatsoever on the part of IPBES concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. These maps have been prepared or used for the sole purpose of facilitating the assessment of the broad biogeographical areas represented therein and for purposes of representing scientific data spatially.
Südasien gestern und heute
Creators: name: Basting, Bernd
name: Wessler, Heinz Werner
Publisher: name: Südasien
Year: 2022

description: Das folgende Interview mit Walter Keller ist sozusagen „in eigener Sache“. 2010 erscheint der dreißigste Jahrgang der Zeitschrift „Südasien“. In diesem Zusammenhang war im Vorfeld der Mitgliederversammlung 2010 am 27. April Gelegenheit zu einem Gespräch mit Walter Keller, der von Anfang an bei „Südasien“ dabei war. - Im Laufe des Jahres soll eine eintägige „Zukunftswerkstatt Südasienbüro“ stattfinden (Termin wird noch bekannt gegeben), zu der die Mitglieder noch gesondert eingeladen werden.
description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten
Serie Religionen in Südasien XIII: Buddhismus auf dem Weg von Indien nach Zentralasien
Creators: name: Heitmann, Annette
Publisher: name: Südasien
Year: 2022

description: Buddhismus ist ein mittlerweile Jahrtausende altes Traditionsgut, entstanden und gereift wie eine Frucht, ausgehend von dem einzigartigen Samen der Erkenntnis des Buddha, einer historischen Persönlichkeit. Vielerorts herrscht Ratlosigkeit, denn die unterschiedlichen Lehrmeinungen und Lebensweisen der Anhänger des Buddha werfen die Frage auf, was der historische Buddha denn eigentlich gewollt hat und was sein eigentliches Wort ist.
description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten
Sonnige Pläne
Creators: name: Dayanandan, Deepak
name: Kamp, Christina
Publisher: name: Südasien
Year: 2022

description: Indien hat ehrgeizige Pläne. Bis 2022 sollen die Kapazitäten zur Erzeugung von Solarstrom im Land auf 20 000 Megawatt ausgeweitet werden. Die National Solar Mission, die der indische Premierminister Anfang dieses Jahres auf den Weg gebracht hat, steckt die politischen Rahmenbedingungen dafür ab. Das Beispiel einer kleinen Adivasi-Gemeinschaft in Wayanad, Kerala, zeigt, wie Solarenergie den Weg zu Entwicklung und gesellschaftlichen Veränderungen weisen kann.
description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten
Jordan property for automorphism groups of compact spaces in Fujiki's class $C$
Creators: name: Meng, Sheng
name: Perroni, Fabio
name: Zhang, De-Qi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 14J50, 32M05

description: Let $X$ be a compact complex space in Fujiki's Class $C$. We show that the group $Aut(X)$ of all biholomorphic automorphisms of $X$ has the Jordan property: there is a (Jordan) constant $J = J(X)$ such that any finite subgroup $G\le Aut(X)$ has an abelian subgroup $H\le G$ with the index $[G:H]\le J$. This extends, with a quite different method, the result of Prokhorov and Shramov for Moishezon threefolds.
description: This version 3 changed the letter "C" only in the title to be properly displayed; no other change
Geometric-optical illusions and Riemannian geometry
Creators: name: Ehm, Werner
name: Wackermann, Jiri
Publisher: name: arXiv
Year: 2016
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences
subject: 91E30, 53A35

description: Geometric-optical illusions (GOI) are a subclass of a vast variety of visual illusions. A special class of GOIs originates from the superposition of a simple geometric figure ("target") with an array of non-intersecting curvilinear elements ("context") that elicits a perceptual distortion of the target element. Here we specifically deal with the case of circular targets. Starting from the fact that (half)circles are geodesics in a model of hyperbolic geometry, we conceive of the deformations of the target as resulting from a context-induced perturbation of that "base" geometry. We present computational methods for predicting distorted shapes of the target in different contexts, and we report the results of a psychophysical pilot experiment with eight subjects and four contexts to test the predictions. Finally, we propose a common scheme for modeling GOIs associated with more general types of target curves, subsuming those studied previously.
description: Preprint version of journal article
Asymptotics of the banana Feynman amplitudes at the large complex structure limit
Creators: name: Iritani, Hiroshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Recently Bönisch-Fischbach-Klemm-Nega-Safari discovered, via numerical computation, that the leading asymptotics of the l-loop Banana Feynman amplitude at the large complex structure limit can be described by the Gamma class of a degree (1,...,1) Fano hypersurface F in (P^1)^{l+1}. We confirm this observation by using a Gamma-conjecture type result for F.
description: 4 pages, v2: minor changes, references added
A general scheme for information interception in the ping pong protocol
Creators: name: Zawadzki, Piotr
name: Miszczak, Jarosław Adam
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Cryptography and Security (cs.CR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The existence of an undetectable eavesdropping of dense coded information has been already demonstrated by Pavičić for the quantum direct communication based on the ping-pong paradigm. However, a) the explicit scheme of the circuit is only given and no design rules are provided, b) the existence of losses is implicitly assumed, c) the attack has been formulated against qubit based protocol only and it is not clear whether it can be adapted to higher dimensional systems. These deficiencies are removed in the presented contribution. A new generic eavesdropping scheme built on a firm theoretical background is proposed. In contrast to the previous approach, it does not refer to the properties of the vacuum state, so it is fully consistent with the absence of losses assumption. Moreover, the scheme applies to the communication paradigm based on signal particles of any dimensionality. It is also shown that some well known attacks are special cases of the proposed scheme.
description: 10 pages, 4 figures
Siegeszug der Lehre im Land der Pashtunen
Creators: name: Golzio, Karl-Heinz
Publisher: name: Südasien
Year: 2022

description: Die beiden im März 2001 von den Taliban gesprengten monumentalen Buddha-Statuen von Bamiyan bzw. ihre leeren Felsnischen halten die Erinnerung an die historische Epoche aufrecht, als der Buddhismus in Afghanistan blühte. Die große Bedeutung der Region als buddhistisches Territorium zeigt sich auch durch die zahlreichen Manuskriptfunde der letzten Jahrzehnte. Die ältesten erhaltenen buddhistischen Manuskripte überhaupt gehen bis in das 2. Jahrhundert n. Chr. zurück und stammen – aus Afghanistan.
description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten
Body hair removal : prevalence, demographics, and body experience among men and women in Germany
Creators: name: Borkenhagen, Ada
name: Mirastschijski, Ursula
name: Strauß, Bernhard
name: Gieler, Uwe
name: Brähler, Elmar
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2020
Subjects: subject: Axillary hair
subject: Body hair removal
subject: Body image
subject: National survey
subject: Pubic hair
subject: 610.72

description: Background: Body hair removal is an increasing trend that has an impact on the individual's body image. Aims: To characterize current body hair removal practices in Germany and the extent to which body hair removal was related to demographic characteristics, body image, and body mass index. Patients/Methods: A national survey was conducted from September to October 2016 in men and women in Germany. Body experience was measured by a standardized questionnaire. In addition to sociodemographic data, age, gender, education, marital status, monthly income, and body mass index were collected. Results: A total of n = 2510 participants aged 14 to 94 years (Mage = 48.4 years (SD = 18.2), 53.4% females) were randomly selected from the general population. 69% of the questioned women removed their body hair while only 41% of men do. The gender effect is statistically significant (χ2 = 203.43; df = 1; P < .001). Income, a higher level of education, and living in an urban region were significantly associated with body hair removal in both, men and women. Furthermore, significant differences with regard to body image were found between hair removers and nonremovers which are associated with a different attitude toward the own body. Conclusions: Germans were likely to remove body hair if they were of younger age, better educated, and with high income. Hair removal is above all a women's issue. Especially, female hair removers experience their body as an esthetic entity with the need of active reshaping. There is a “shift” from ideal of a naturally hairy body to an increased hairlessness in Germany.
Combined Effects of Microbial Inoculation and Activated Carbon/Biochar on the Accumulation and Transfer of Nutrients and Potentially Toxic Metals in Maize Plants Grown on a Contaminated Soil
Creators: name: Kotby, Rahma A.
name: Mohamed, Hashem M.
name: Gomah, Hala H.
name: Usman, Adel R.A.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Cancer
subject: Plant Biology

description: This study was conducted in a greenhouse pot experiment to assess the effects of biochar (BC) or activated carbon (AC) alone or in combination with arbuscular mycorrhizal fungus (AMF) Glomus mosseae or acid-producing bacteria (BA) Bacillus polymyxa on plant growth, EDTA-extractable Cd and Pb, and contents of heavy metals (Cd and Pb) and nutrients (Ca, Mg, K, and P) in maize (Zea mays L.) grown on sewage wastewater contaminated soil. The results showed that most treatments with BC, AC, or its co-application with microbial inoculation led significantly to greater nutrient uptake and promoted growth of maize than non-treated plants. Additionally, the soil additives used decreased the amounts of EDTA-extractable Cd (by 28.7%-100%) and Pb (by 22.8%-94.3%). The applied treatments caused significant decreases in Cd concentrations and the bioconcentration factor (BCF) of Zea mays. The highest shoot Cd reduction was observed for AC (53%), followed by AC+BA (36.9%) > AMF (34.5%) > AC+AMF (28.5) > BA (28.3%) > BC+BA (26.1%) > BC (22.7%). However, more Cd was accumulated in the roots of plants treated with AMF by 63.7% with a lower value of translocation factor (TF) compared to control soil. In contrast, the treatments increased the levels of Pb in the maize plants, and BC coupled with AMF showed the greatest Pb accumulation. It could be concluded that the investigated additives can be applied as immobilizing agents for Cd in the soil but maize plants as phytoextractants for both metals in sewage-contaminated soil are not feasible, as indicated by insufficient phytoextraction efficiency.
Vom säkularen Nationalismus zur Staatsreligion
Creators: name: Heidegger, Patrizia
Publisher: name: Südasien
Year: 2022

description: „Der ursprüngliche, säkulare Charakter der Verfassung von 1972 wird wiederhergestellt!“, jubeln diejenigen, die in Bangladesch keinen islamischen Staat sehen. „Warum sollte Bangladesch ein säkularer Staat sein? Dann können wir gleich ein Teil von Hindustan werden! Bangladesch ist als Heimatland für die Muslime von Indien abgetrennt worden!“ schreibt ein Blogger stellvertretend für viele andere. Nach einer weitreichenden Entscheidung des Supreme Courts Anfang des Jahres ist die Diskussion um den säkularen Charakter der Verfassung und die Rolle des Islam in Bangladesch wieder voll entbrannt.
description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten
Spatial Variation, Ecological Risk, and Point Sources of Environmental Trace Metals in Lacustrine Ecosystems: An Assessment of Natural and Urban Inputs
Creators: name: Bessa, Armel Zacharie Ekoa
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified

description: To gain insights into the spatial distribution, ecological risk and origins of heavy metals in surface sediments of lacustrine ecosystems in Cameroon, the content of 7 trace metals (Fe, Cr, Zn, Cu, Ni, Pb and Cd) in sediments from 60 sampling stations in 5 lacustrine environments of different formation contexts. The selected metals were investigated based on inductively coupled plasma mass spectrometry. The results revealed that the average concentrations of Cr, Cu and Cd were higher than the geochemical Threshold values. On the basis of the spatial variation, the studied metals vary quantitatively in the following order: Fe > Cr > Zn > Cu > Ni > Pb > Cd. The calculated enrichment factor (EF) and geo-accumulation index (Igeo) showed that, sediments from large cities and industrial sites had moderate enrichment (3 < EF ≤ 5) and were moderately to severely contaminated (2 < Igeo < 3) while those from low population and rural areas had minor enrichment (1 < EF ≤ 3) and were moderately contaminated (1 < Igeo < 2). With regards to cumulative pollution, the pollution load index (PLI) and the sediment pollution index (SPI) coupled with the potential ecological risk factor (Er) and the potential ecological risk index (RI), the sediments of the lakes are polluted (SPI and PLI > 1) to some extent but with a low ecological risk (Er < 40 and RI < 150). The results of Pearson correlation, principal component analysis (PCA), and cluster analysis (CA) identified three main sources: Ni would have a natural source; Pb from anthropogenic sources, and the other metals (Fe, Cr, Zn, Cu, and Cd) could have a mixed source (anthropogenic and natural). These findings serve as a scientific foundation for the advancement and use of these lake environments, which are the most attractive sites.
Periods and motives in the spectral action of Robertson-Walker spacetimes
Creators: name: Fathizadeh, Farzad
name: Marcolli, Matilde
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We show that, when considering the scaling factor as an affine variable, the coefficients of the asymptotic expansion of the spectral action on a (Euclidean) Robertson-Walker spacetime are periods of mixed Tate motives, involving relative motives of complements of unions of hyperplanes and quadric hypersurfaces and divisors given by unions of coordinate hyperplanes.
description: 42 pages
Semi-Empirical Modeling of the Atmospheres of the M Dwarf Exoplanet Hosts GJ 832 and GJ 581
Creators: name: Tilipman, Dennis
name: Vieytes, Mariela
name: Linsky, Jeffrey L.
name: Buccino, Andrea P.
name: France, Kevin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Stellar ultraviolet (UV) radiation drives photochemistry, and extreme-ultraviolet (EUV) radiation drives mass loss in exoplanet atmospheres. However, the UV flux is partly unobservable due to interstellar absorption, particularly in the EUV range (100--912 A). It is therefore necessary to reconstruct the unobservable spectra in order to characterize the radiation environment of exoplanets. In the present work, we use a radiative transfer code SSRPM to build one-dimensional semi-empirical models of two M dwarf exoplanet hosts, GJ 832 and GJ 581, and synthesize their spectra. SSRPM is equipped with an extensive atomic and molecular database and full-NLTE capabilities. We use observations in the visible, ultraviolet, and X-ray ranges to constrain atmospheric structures of the modeled stars. The synthesized integrated EUV fluxes are found to be in good agreement with other reconstruction techniques, but the spectral energy distributions (SEDs) disagree significantly across the EUV range. More than 2/3 of the EUV flux is formed above $10^5$ K. We find that the far ultraviolet (FUV) continuum contributes 42--54 % of the entire FUV flux between 1450--1700 A. The comparison of stellar structures of GJ 832 and GJ 581 suggests that GJ 832 is a more magnetically active star, which is corroborated by other activity indicators.
description: 20 pages, 16 figures; accepted for publication by ApJ
Wenn der Frieden hält
Creators: name: T.Y., Vinod Krishnan
name: Kamp, Christina
Publisher: name: Südasien
Year: 2022

description: Der Bürgerkrieg ist vorbei. 26 Jahre bewaffneter Konflikt in Sri Lanka wurden offiziell für beendet erklärt, als der Anführer der tamilischen Separatisten Liberation Tigers of Tamil Elam (LTTE), Velupillai Prabhakaran, am 19. Mai 2009 vom srilankischen Militär getötet wurde. Auf der Insel spricht niemand mehr über Terrorismus. Entlang der asphaltierten Straßen des Landes zeigen die riesigen Flex-Plakatwände den zum Kriegshelden gewordenen Präsidenten Sri Lankas, Mahinda Rajapaksha, in verschiedenen Posen. Auf diesen Plakaten geht es um den Wiederaufbau der Nation.
description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten
inklusives Indien bauen
Creators: name: Von Der Heyde, Eberhard
Publisher: name: Südasien
Year: 2022

description: Mit Sit-ins und mit Hungerstreik, mit Petitionen und Demonstrationen haben auch im vergangenen Jahr wieder Dalit-Christen ihrer Forderung nach einer rechtlichen Gleichstellung aller Dalits unabhängig von der Religionszugehörigkeit Nachdruck verliehen. Sie fordern eine Änderung der gegenwärtigen Rechtsprechung und machen darauf aufmerksam, dass die Erinnerung an 60 Jahre Indische Verfassung für viele Bürger dieses Landes eine Erinnerung an schmerzliche Erfahrungen von Diskriminierung und Ungleichheit ist und eine lange Reihe von Jahren des Wartens auf rechtliche Gleichstellung.
description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten
Rechtseinheit und Rechtsvielfalt
Creators: name: Urikhimbam, Nobokishore
name: Rathgeber, Theodor
Publisher: name: Südasien
Year: 2022

description: Das indische Rechtssystem ist ein Paradoxon. Der politische Gestaltungsauftrag geht von einer für alle gültigen, einheitlichen Verfassung aus, die jedoch selber durch Artikel 372 feststellt, dass alle bei Verfassungsbeginn (26. Januar 1950) geltenden Rechte als Recht des neuen Staates in Kraft bleiben. Gleichzeitig erteilt die Verfassung der neuen Gesetzgebung und Rechtsprechung den Auftrag, im Laufe der Zeit gegebenenfalls Änderungen vorzunehmen. Die Rechtseinheit Indiens umfasst daher bis heute eine Vielfalt unterschiedlicher normativer Rechtsordnungen: britisches Recht, traditionelle Rechte der Hindus und Moslems, Rechte der Stammesgesellschaften, regionales Gewohnheitsrecht. Einiges davon bündelt sich in der Verfassungs- und Gesetzgebungsordnung im Nordosten Indiens.
description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten
Kinderrechte in der Republik Indien
Creators: name: George, C.J.
name: Marsh, Edgar
Publisher: name: Südasien
Year: 2022

description: Das Wohlergehen, die Entwicklung und die Sorge für Kinder, die als Zukunft der Nation gesehen wurden, waren ein wichtiger Teil der Diskussionen und Debatten während des Freiheitskampfes. Am Ende spiegelten die Directive Principles [Grundsätze; in Teil III der indischen Verfassung] den umfassenden Geist, die Hoffnungen und das Streben der indischen Freiheitsbewegung wider.
description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten
Wahlrechtsreform in Indien – die CERI-Kampagne
Creators: name: Hahn, Walter
Publisher: name: Südasien
Year: 2022

description: Im Oktober 2008 wurde in Dhaka mit einer internationalen Konferenz eine Kampagne zur Reform des indischen Wahlrechts (CERI – Campaign for Electoral Reforms in India) begonnen, die sich das Ziel gesetzt hat, innerhalb von 10 Jahren das derzeit in Indien gültige Mehrheitswahlrecht durch ein auf den Prinzipien des Verhältniswahlrechts basierendes System abzulösen. Die Kampagnenmacher sind der Ansicht, dass dadurch die Minderheiten eine genuinere politische Vertretung in den Parlamenten Indiens erreichen können und damit deren Belange ernsthafter und wirkungsvoller in die politische Willensbildung integriert werden. Dies wird als ein wesentlicher Beitrag dazu gesehen, mehr Chancengleichheit in der indischen Gesellschaft zu erreichen und eine „inklusivere“ und auf mehr Ausgleich angelegte Gesellschaft aufzubauen.
description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten
Nematic liquid crystals on sinusoidal channels: the zigzag instability
Creators: name: Silvestre, Nuno M.
name: Romero-Enrique, Jose M.
name: da Gama, Margarida M. Telo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Substrates which are chemically or topographically patterned induce a variety of liquid crystal textures. The response of the liquid crystal to competing surface orientations, typical of patterned substrates, is determined by the anisotropy of the elastic constants and the interplay of the relevant lengths scales, such as the correlation length and the surface geometrical parameters. Transitions between different textures, usually with different symmetries, may occur under a wide range of conditions. We use the Landau-de Gennes free energy to investigate the texture of nematics in sinusoidal channels with parallel anchoring bounded by nematic-air interfaces that favour perpendicular (hometropic) anchoring. In micron size channels 5CB was observed to exhibit a non-trivial texture characterized by a disclination line, within the channel, which is broken into a zigzag pattern. Our calculations reveal that when the elastic anisotropy of the nematic does not favour twist distortions the defect is a straight disclination line that runs along the channel, which breaks into a zigzag pattern with a characteristic period, when the twist elastic constant becomes sufficiently small when compared to the splay and bend constants. The transition occurs through a twist instability that drives the defect line to rotate from its original position. The interplay between the energetically favourable twist distortions that induce the defect rotation and the liquid crystal anchoring at the surfaces leads to the zigzag pattern. We investigate in detail the dependence of the periodicity of the zigzag pattern on the geometrical parameters of the sinusoidal channels, which in line with the experimental results is found to be non-linear.
Elefant lernt den Galopp
Creators: name: Hörig, Rainer
Publisher: name: Südasien
Year: 2022

description: Die politische Dynamik und der Erfolg des antikolonialen Freiheitskampfes erfüllen auch heute noch jeden Inder mit Stolz und sie sind die Grundlage des nationalen Wir- Gefühls. Das unabhängige Indien kann eine Reihe von Errungenschaften vorweisen: Seit 1947 hat sich keine große Hungersnot mehr ereignet. Nehrus Autarkiestrategie verhalf dem Land zu einer soliden wirtschaftlichen Basis. Der politischen Elite ist es gelungen, den Staat auf ein stabiles demokratisches Fundament zu stellen und auch zusammenzuhalten, wenn auch mit Einschränkungen. Dank des wirtschaftlichen Erfolges, der zunehmenden Verbreitung und Vertiefung von Bildung und einer lebhaften Zivilgesellschaft verbessert sich unterm Strich auch die Lage vieler marginalisierter Bevölkerungsgruppen.
description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten
Matrilineare Traditionen der Khasi und Frauenrechte im Licht der indischen Verfassung
Creators: name: Rathgeber, Theo
Publisher: name: Südasien
Year: 2022

description: Irene Patricia Hujon nahm als Vertreterin der Meghalaya Human Rights Organisation (MHRO) an der 12. Sitzung des Menschenrechtsrats der Vereinten Nationen im September 2009 in Genf teil. Sie ist außerdem Vertreterin der Lok Jan Shakti Party (LJP) für den Wahlkreis Laban im Landtag des indischen Bundesstaates Meghalaya. Sie ist selbst eine Khasi, Mitglied einer Stammesgemeinschaft in Meghalaya. Das Interview fand im September 2009 in Genf am Rand der Sitzung statt.
description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten
Vertreibung – endemischer Bestandteil des indischen Staates
Creators: name: Rathgeber, Theodor
Publisher: name: Südasien
Year: 2022

description: Im Jahr 1950 wurde Indien zu einer Republik mit einer Verfassung, die unterschiedliche normative Traditionen berücksichtigen und unterschiedliche Lebensentwürfe respektieren will. Für einzelne Bevölkerungsgruppen wie die Adivasi wurden zusätzliche Rechtsansprüche auf ein selbst gewähltes Leben formuliert. Über den Begriff der Stammesgesellschaften (Scheduled Tribes; vgl. den Artikel von M. Kujur) gewährt die Verfassung spezielle Rechte in der Fifth Schedule (Anhang zur Verfassung) zum Schutz ihres Landes und ihrer Kultur.
description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten
indische Verfassung und das Leben der Adivasis
Creators: name: Kujur, Joseph Marianus
Publisher: name: Südasien
Year: 2022

description: Wenn dieser Aufsatz in Druck geht, wird die neue Regierung in Jharkhand, dem Staat in Zentralindien, der aufgrund der „Adivasi-Agenda“ aus der Abspaltung von Bihar entstand, nach der Wahl der 81 Abgeordneten des Landtags bereits gebildet worden sein. Jharkhand wurde am 15. November 2000 gegründet, dem 125. Geburtsjubiläum des legendären Adivasiführers Birsa Munda, der sich gegen die Briten und die Großgrundbesitzer erhob, um die Adivasis vor Ausbeutung und entwürdigender Unterdrückung zu befreien. Die Staatsgründung sollte die Adivasis aus den Fängen der Dikus befreien, der aus anderen Regionen nach Jharkhand zugewanderten Ausbeuter. Diese gehören meist selbst nicht den Adivasi-Stämmen an.
description: Südasien, Bd. 30 Nr. 2 (2010): 60 Jahre indische Verfassung - Perspektiven der Minderheiten