cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 1: of Using Different Ions to Tune Graphene Stack Structures from Sheet- to Onion-Like During Plasma Exfoliation, with Supercapacitor Applications
Creators: name: Po-Jen Yen
name: Sumanta Sahoo
name: Ya-Chi Chiang
name: Shih-Yu Huang
name: Chia-Wei Wu
name: Yung-Chi Hsu
name: Kung-Hwa Wei
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Figure S1. (a) The thickness distribution of more than 30 GNS determined from HRTEM of GNS_Na+ and GNS_H+(the first batch); (b) and (c) are GNS_H+ produced from the second and the third batch of the cathodic plasma exfoliation, respectively (scale bar 4 nm). Figure S2. (a) XPS survey spectra of GNS_Na+ and GNS_H+; (b) XRD diffraction patterns of graphite, GNS_Na+, and GNS_H+; inset: corresponding expanded region of the plots. Table S1. Synthesis methods, times, and temperatures; specific surface areas; and electrochemical performances, in NaCl solution at various scan rates, of graphene materials reported in the literature. *rt room temperature. Figure S3. (a–c) Cyclic voltammograms and (d–f) galvanostatic charge/discharge curves of (a, d) graphite, (b, e) GNS_Na+, and (c, f) GNS_H+, recorded at various scan rates. Figure S4. Cycling tests of graphite, GNS_Na+, and GNS_H+ over 1000 cycles at a scan rate of 100 mV s−1. (DOCX 2844 kb)
Mode-Coupling in Rotating Gravitational Collapse of a Scalar Field
Creators: name: Hod, Shahar
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present an analytic study of the mode-coupling phenomena for a scalar field propagating on a rotating Kerr background. Physically, this phenomena is caused by the dragging of reference frames, due to the black-hole (or star's) rotation. We find that different modes become mixed during the evolution and the asymptotic late-time tails are dominated by a mode which, in general, has an angular distribution different from the original one. We show that a rotating Kerr black hole becomes `bald' slower than a spherically-symmetric Schwarzschild black hole.
description: 20 pages
«SANOAT IQTISODIYOTI» FANINING DEMOKRATIK BOZOR IQTISODIYOTI SHAROITIGA VA ISLOHOTLAR TALABIGA MOS VAZIFALARI
Creators: name: Yusupov, Ulug'bek
Publisher: name: Zenodo
Year: 2024

description: Har qanday fanlar kabi «Sanoat iqtisodiyoti» fani ham albatta o‘z yo‘nalishi bo‘yicha ilmiy qarash va nazariyalarga tayanadi. Uning asosiy vazifasi esa sanoat sohasiga taalluqli iqtisodiy bilim va ilm hamda muayyan ko‘nikma bilan qurollantirishdan iboratdir. Sanoat iqtisodiyoti, hamda demokratik bozor iqtisodiyoti sharoitida, belgilangan vaqtda va joyda xarakterliklari o'zida mujassam bo'lgan maxsus vazifalarga ega hisoblanadi. Bu vazifalar, o'zaro bog'liqlikni oshirish, shuningdek, erkinlikni muhofaza qilish va samarali ijtimoiy-iqtisodiy rivojlanishni ta'minlashni o'z ichiga oladi. Quyidagi maqolada, demokratik bozor iqtisodiyoti sharoitida sanoat iqtisodiyotining muhim vazifalari va uni bajargan holda islohotlar talablariga oid bir nechta manba hamda ma’lumotlar  keltirilgan.
Additional file 12: of Postovulatory maternal transcriptome in Atlantic salmon and its relation to developmental potential of embryos
Creators: name: Teshome Bizuayehu
name: Mommens, Maren
name: Sundaram, Arvind
name: Anusha Dhanasiri
name: Babiak, Igor
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology

description: Primers used for RT-qPCR. Gene name and symbol with forward and reverse primer sequences (5â ˛ -3â ˛) are given. (DOCX 19 kb)
Photospheric plasma and magnetic field dynamics during the formation of solar AR 11190
Creators: name: Rozo, J. I. Campos
name: Utz, D.
name: Dominguez, S. Vargas
name: Veronig, A.
name: Van Doorsselaere, T.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Sun features on its surface typical flow patterns called the granulation, mesogranulation, and supergranulation. These patterns arise due to convective flows transporting energy from the interior of the Sun to its surface. In this paper we will shed light on the interaction between the convective flows in large-scale cells as well as the large-scale magnetic fields in active regions, and investigate in detail the statistical distribution of flow velocities during the evolution and formation of National Oceanic and Atmospheric Administration (NOAA) active region 11190. To do so, we employed local correlation tracking methods on data obtained by the Solar Dynamics Observatory (SDO) spacecraft in the continuum as well as on processed line-of-sight (LOS) magnetograms. We find that the flow fields in an active region can be modelled by a two-component distribution. One component is very stable, follows a Rayleigh distribution, and can be assigned to the background flows, whilst the other component is variable in strength and velocity range and can be attributed to the flux emergence visible both in the continuum maps as well as magnetograms. Generally, the plasma flows, as seen by the distribution of the magnitude of the velocity, follow a Rayleigh distribution even through the time of formation of active regions. However, at certain moments of large-scale fast flux emergence, a second component featuring higher velocities is formed in the velocity magnitudes distribution. The plasma flows are generally highly correlated to the motion of magnetic elements and vice versa except during the times of fast magnetic flux emergence as observed by rising magnetic elements. At these times, the magnetic fields are found to move faster than the corresponding plasma.
description: 15 pages, 11 figures, 5 equations. Accepted for publication in Astronomy and Astrophysics (A&A)
Functional Renormalization Group Analysis of $O(3)$ Nonlinear Sigma Model and Non-Abelian Bosonization Duality
Creators: name: Haruna, Junichi
name: Shimizu, Keito
name: Yamada, Masatoshi
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: It is known that the $U(2)$ Wess-Zumino-Witten model is dual to the free fermion theory in two dimensions via non-Abelian bosonization. While it is decomposed into the $SU(2)$ Wess-Zumino-Witten model and a free compact boson, the former is believed to be equivalent to the $O(3)$ nonlinear sigma model with the theta term at $θ=π$. In this work, we reexamine this duality through the lens of non-perturbative renormalization group (RG) flow. We analyze the RG flow structure of the $O(3)$ nonlinear sigma model with the theta term in two dimensions using the functional renormalization group. Our results reveal a nontrivial fixed point with a nonzero value of the topological coupling. The scaling dimensions (critical exponents) at this fixed point suggest the realization of a duality between the $O(3)$ nonlinear sigma model with the theta term and the free fermion theory, indicating that these models belong to the same universality class.
description: 20 pages, 1 figure
Packing Concave Molecules in Crystals and Amorphous Solids: On the Connection between Shape and Local Structure
Creators: name: Jennings, Cerridwen
name: Ramsay, Malcolm
name: Hudson, Toby
name: Harrowell, Peter
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The structure of the densest crystal packings is determined for a variety of concave shapes in 2D constructed by the overlap of two or three disks. The maximum contact number per particle pair is defined and proposed as a useful means of categorizing particle shape. We demonstrate that the densest packed crystal exhibits a maximum in the number of contacts per particle but does not necessarily include particle pairs with the maximum contact number. In contrast, amorphous structures, generated by energy minimization of high temperature liquids, typically do include maximum contact pairs. The amorphous structures exhibit a large number of contacts per particle corresponding to over-constrained structures. Possible consequences of this over-constraint are discussed.
Oxus (Oxus) tasmanicus
Creators: name: Orginal, Harry Smit
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Oxidae
Oxus
Oxus tasmanicus

description: Oxus (Oxus) tasmanicus (K.O. Viets, 1978)
(Figure 7)
 New records — 1/0/0, Deep River at Fernhook Falls, Mt Frankland NP, 34°49.036′
S 115°35.684′ E, 52 m asl, 19 Apr. 2008 ; 2/0, Stockton Lake, E of Collie, 33°23′6.33″ S 116°13′38.72″ E, 23 Apr. 2008 ; 0/1/0, Harvey River at crossing with Kevron Road, Lane Pool Reserve, 33°00.997′ S 116°05.585′ E, 246 m asl, 13 Feb. 2019.
 Remarks — The specimens from Western Australia differ from the specimen illustrated by Cook (1986), one of the glandularia of the coxae is much more distanced from the periphery (Figure 7), and the dorsal strip has one anteriorly situated median sclerite or none. In all other characters (shape of palp and gnathosoma, number of glandularia in dorsal strip and coxae, shape of the excretory pore platelet) the specimens from this study match the description given by Cook (1986). For the time being I assign my specimens to O. tasmanicus. More research is needed to elucidate the variation in the configuration of the coxal glandularia and the sclerites of the dorsal strip.
 Distribution — Previously reported from Tasmania and New South Wales, and reported here for the first time from Western Australia.
description: Published as part of Orginal, Harry Smit, 2021, The water mites of Western Australia (Acari: Hydrachnidia), with the description of 13 new species, pp. 928-966 in Acarologia 61 (4) on pages 939-940
Power-law energy level-spacing distributions in fractals
Creators: name: Iliasov, Askar A.
name: Katsnelson, Mikhail I.
name: Yuan, Shengjun
Publisher: name: arXiv
Year: 2018
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this article we investigate the energy spectrum statistics of fractals at the quantum level. We show that the energy-level distribution of a fractal follows a power-law behaviour, if its energy spectrum is a limit set of piece-wise linear functions. We propose that such a behaviour is a general feature of fractals, which can not be described properly by random matrix theory. Several other arguments for the power-law behaviour of the energy level-spacing distributions are proposed.
Far-Infrared OH fluorescent emission in Sagittarius B2
Creators: name: Goicoechea, J. R.
name: Cernicharo, J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Infrared Space Observatory (ISO) observations of 16OH and 18OH toward Sgr B2 with a spectral resolution of 35 km/s. The OH J=5/2-3/2 and J=3/2-1/2 rotational lines of the 2Pi1/2 ladder are seen in emission while the cross-ladder transitions (from the 2Pi3/2 J=3/2 to the J=1/2, 3/2 and 5/2 levels of the 2Pi1/2ladder), and the 2Pi3/2 J=5/2-3/2 and J=7/2-5/2 lines are detected in absorption. The 18OH 2Pi3/2 J=5/2-3/2 Lambda-doublet at 120 mu is also observed in absorption. All OH Lambda-doublets are resolved (except the 98 mu) and show, in addition to the strong absorption at the velocity of Sgr B2, several velocity components associated to the gas surrounding Sgr B2 and to the foreground clouds along the line of sight. No asymmetries in the line intensities of each doublet have been observed. We have modeled the observations using a non-local radiative transfer code and found that the OH absorption/emission must arise in a shell around Sgr B2 not resolved by the ISO/LWS beam. The gas density is moderate, with upper limits of 10^4 cm^{-3} and 300 K in temperature. The OH abundance is high,(2-5)10^{-6}. We argue that a widespread photon dominated region explains the enhancement of OH abundance.
description: 13 pages, 2 figures, accepted in ApJ Letters
Additional file 1 of Entrepreneurial education and students' entrepreneurial intention: does team cooperation matter?
Creators: name: Luyu Li
name: Dandan Wu
Publisher: name: figshare
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: The items of questionnaire. (DOCX 15 kb)
Origin of the density wave instability in trilayer nickelate La$_{4}$Ni$_{3}$O$_{10}$ revealed by optical and ultrafast spectroscopy
Creators: name: Xu, Shuxiang
name: Chen, Cui-Qun
name: Huo, Mengwu
name: Hu, Deyuan
name: Wang, Hao
name: Wu, Qiong
name: Li, Rongsheng
name: Wu, Dong
name: Wang, Meng
name: Yao, Dao-Xin
name: Dong, Tao
name: Wang, Nanlin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In the intricate phase diagram of unconventional superconductors characterized by intertwined electronic orders and superconductivity, a key step in understanding the superconducting mechanism is to investigate the parent compounds from which superconductivity emerges through doping or pressure. In this study, we employed optical spectroscopy and ultrafast reflectivity measurements to examine the density wave instability in the trilayer nickelate La$_{4}$Ni$_{3}$O$_{10}$, which displays pressure-induced superconductivity up to 30 K. Our optical spectroscopy measurements reveal that La$_{4}$Ni$_{3}$O$_{10}$ behaves as a metal with a high plasma frequency. Upon cooling, we observed a distinct formation of a density wave energy gap in both optical conductivity and pump-probe measurements. The gap feature is more pronounced compared to the bilayer nickelate La$_{3}$Ni$_{2}$O$_{7}$. Through a comparison of the experimentally determined plasma frequency with first-principles calculations, we classify La$_{4}$Ni$_{3}$O$_{10}$ as a moderately electron-correlated material, resembling the parent compound of iron-based superconductors but exhibiting weaker correlation than the bilayer nickelate La$_{3}$Ni$_{2}$O$_{7}$. The enhanced gap feature and weaker electronic correlation in La$_{4}$Ni$_{3}$O$_{10}$ may explain its lower superconductivity transition temperature under high pressure. These findings significantly advance our comprehension of the density wave and superconductivity mechanisms in the trilayer nickelate La$_{4}$Ni$_{3}$O$_{10}$.
On Black Hole Horizon Fluctuations
Creators: name: Tuchin, Kirill
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A study of the high angular momentum particles 'atmosphere' near the Schwarzschild black hole horizon suggested that strong gravitational interactions occur at invariant distance of the order of $\sqrt[3]{M}$ (A. Casher et. al). We present a generalization of this result to the Kerr-Newman black hole case. It is shown that the larger charge and angular momentum black hole bears, the larger invariant distance at which strong gravitational interactions occur becomes. This invariant distance is of order $\sqrt[3]{r_+^2/\hh}.$ This implies, that the Planckian structure of the Hawking radiation of extreme black holes is completely broken.
description: 20 pages; LaTeX2e; to be published in the Nuclear Physics B; Section 3 was revised and Appendix added
ALMACAL V: Absorption-selected galaxies with evidence for excited ISMs
Creators: name: Klitsch, A.
name: Zwaan, M. A.
name: Peroux, C.
name: Smail, I.
name: Oteo, I.
name: Popping, G.
name: Swinbank, A. M.
name: Ivison, R. J.
name: Biggs, A. D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Gas-rich galaxies are selected efficiently via quasar absorption lines. Recently, a new perspective on such absorption-selected systems has opened up by studying the molecular gas content of absorber host galaxies using ALMA CO emission line observations. Here, we present an analysis of multiple CO transitions ($L'_{\rm CO} \sim 10^9$ K km s$^{-1}$) in two $z \sim 0.5$ galaxies associated with one Ly$α$ absorber towards J0238+1636. The CO spectral line energy distribution (CO SLED) of these galaxies appear distinct from that of typical star-forming galaxies at similar redshifts and is comparable with that of luminous infrared galaxies or AGN. Indeed, these galaxies are associated with optically identified AGN activity. We infer that the CO line ratios and the $α_{\rm CO}$ conversion factor differ from the Galactic values. Our findings suggest that at least a fraction of absorption selected systems shows ISM conditions deviating from those of normal star-forming galaxies. For a robust molecular gas mass calculation, it is therefore important to construct the CO SLED. Absorption-line-selection identifies systems with widely distributed gas, which may preferentially select interacting galaxies, which in turn will have more excited CO SLEDs than isolated galaxies. Furthermore, we raise the question whether quasar absorbers preferentially trace galaxy overdensities.
description: 5 pages, 3 figures, 3 tables, Accepted for publication in MNRAS
Australiobates (Australiobates) mutatus K. O. Viets 1978
Creators: name: Orginal, Harry Smit
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Hygrobatidae
Australiobates
Australiobates mutatus

description: Australiobates (Australiobates) mutatus K.O. Viets, 1978
 New records — 0/1/0, stream downstream of Fortescue Falls, Karijini NP, 22°28.656′ S 118°33.068′ E, 606 m asl, 28 Jan. 2019 ; 0/1/0, Fortescue River, Millstream-Chichester NP, 21°34.236′ S 117°03.276′ E, 277 m asl, 30 Jan. 2019.
 Distribution — Known from all states and territories.
description: Published as part of Orginal, Harry Smit, 2021, The water mites of Western Australia (Acari: Hydrachnidia), with the description of 13 new species, pp. 928-966 in Acarologia 61 (4) on page 940
The Demon of (Racial) History: Reading Candyman
Creators: name: Balasopoulos, Antonis
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 1997

description: Το άρθρο επιχειρεί, μέσω μιας ανάγνωσης της ταινίας Candyman, μια ανάλυση του συνδυασμού ιστορικής μνήμης και φυλετικής διαφορετικότητας στη λειτουργία της πολιτισμικής παραγωγής τρόμου όπως αυτή σχετίζεται με το σχηματισμό του φυλετικού Άλλου. Υποστηρίζεται ότι το Αμερικανικό γοτθικό είδος περιβάλλει τη φυλετική διαφορετικότητα με μια εξωκοσμική ατμόσφαιρα που στην πραγματικότητα διευκολύνει την εκτροπή της από το χώρο του κοινωνικού σε αυτό που ο Λακάν θα ονόμαζε το Φαντασιακό, ένα προ-κοινωνικό χώρο όπου η διαφορά δεν έχει γίνει ακόμα κοινωνική, όπου επομένως δε λειτουργεί πραγματικά ως ‘σημαίνων’, αλλά ως ‘τερατώδες’. Το άρθρο επιχειρεί να δείξει, μέσω μιας ανάλυσης και συζήτησης τριών από τα κύρια μέρη της ταινίας, ότι η ταινία αυτή αναπτύσσει μια πολύπλοκη και αντιπαραθετική προβληματική που στριφογυρίζει γύρω και απλώνεται πέρα από τους άξονες της φυλής, του φύλου και της κοινωνικής τάξης στη σύγχρονη αστική Αμερική.
description: Gramma: Journal of Theory and Criticism, Vol 5 (1997): Text / History / Context
title: Pharmazeutische Zentralhalle für Deutschland 55. Jahrgang 1914
Creators: name: :None
Publisher: name: Schneider
Year: 1914
Subjects: subject: 615

description: Pharmazeutische Zentralhalle für Deutschland: Zeitschrift für wissenschaftliche, praktische und geschäftliche Interessen der Pharmazie, vol. 55. 1914
Bootstrapping frustrated magnets: the fate of the chiral ${\rm O}(N)\times {\rm O}(2)$ universality class
Creators: name: Reehorst, Marten
name: Rychkov, Slava
name: Sirois, Benoit
name: van Rees, Balt C.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study multiscalar theories with $\text{O}(N) \times \text{O}(2)$ symmetry. These models have a stable fixed point in $d$ dimensions if $N$ is greater than some critical value $N_c(d)$. Previous estimates of this critical value from perturbative and non-perturbative renormalization group methods have produced mutually incompatible results. We use numerical conformal bootstrap methods to constrain $N_c(d)$ for $3 \leq d < 4$. Our results show that $N_c> 3.78$ for $d = 3$. This favors the scenario that the physically relevant models with $N = 2,3$ in $d=3$ do not have a stable fixed point, indicating a first-order transition. Our result exemplifies how conformal windows can be rigorously constrained with modern numerical bootstrap algorithms.
description: 48 pages, 15 figures ; Added references
title: Achieving net zero greenhouse gas emissions critical to limit climate tipping risks
Creators: name: Möller, Tessa
name: Högner, Annika Ernest
name: Schleussner, Carl-Friedrich
name: Bien, Samuel
name: Kitzmann, Niklas H.
name: Lamboll, Robin D.
name: Rogelj, Joeri
name: Donges, Jonathan F.
name: Rockström, Johan
name: Wunderling, Nico
Publisher: name: Humboldt-Universität zu Berlin
Year: 2024
Subjects: subject: Climate and Earth system modelling
subject: Climate change
subject: Phase transitions and critical phenomena
subject: 500 Naturwissenschaften und Mathematik

description: Under current emission trajectories, temporarily overshooting the Paris global warming limit of 1.5 °C is a distinct possibility. Permanently exceeding this limit would substantially increase the probability of triggering climate tipping elements. Here, we investigate the tipping risks associated with several policy-relevant future emission scenarios, using a stylised Earth system model of four interconnected climate tipping elements. We show that following current policies this century would commit to a 45% tipping risk by 2300 (median, 10–90% range: 23–71%), even if temperatures are brought back to below 1.5 °C. We find that tipping risk by 2300 increases with every additional 0.1 °C of overshoot above 1.5 °C and strongly accelerates for peak warming above 2.0 °C. Achieving and maintaining at least net zero greenhouse gas emissions by 2100 is paramount to minimise tipping risk in the long term. Our results underscore that stringent emission reductions in the current decade are critical for planetary stability.
Spectra of eccentricity matrices of graphs
Creators: name: Mahato, Iswar
name: Gurusamy, R.
name: Kannan, M. Rajesh
name: Arockiaraj, S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 05C12, 05C50

description: The eccentricity matrix of a connected graph $G$ is obtained from the distance matrix of $G$ by retaining the largest distances in each row and each column, and setting the remaining entries as $0$. In this article, a conjecture about the least eigenvalue of eccentricity matrices of trees, presented in the article [Jianfeng Wang, Mei Lu, Francesco Belardo, Milan Randic. The anti-adjacency matrix of a graph: Eccentricity matrix. Discrete Applied Mathematics, 251: 299-309, 2018.], is solved affirmatively. In addition to this, the spectra and the inertia of eccentricity matrices of various classes of graphs are investigated.
description: Comments are welcome!
Topological Evolution of Dynamical Networks: Global Criticality from Local Dynamics
Creators: name: Bornholdt, Stefan
name: Rohlf, Thimo
Publisher: name: arXiv
Year: 2000
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We evolve network topology of an asymmetrically connected threshold network by a simple local rewiring rule: quiet nodes grow links, active nodes lose links. This leads to convergence of the average connectivity of the network towards the critical value $K_c =2$ in the limit of large system size $N$. How this principle could generate self-organization in natural complex systems is discussed for two examples: neural networks and regulatory networks in the genome.
description: 4 pages RevTeX, 4 figures PostScript, revised version
Neogavara imitans Janse 1964
Creators: name: Mbata, Keith J.
name: Prins, Jurate De
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Limacodidae
Neogavara
Neogavara imitans

description: Neogavara imitans Janse, 1964
COMMON NAME(S): Satin Slug.
SYNONYM(S): None.
IUCN STATUS: Not Evaluated (NE).
DISTRIBUTION: Malawi, Mozambique, Namibia, South Africa, Tanzania, Zambia, Zimbabwe.
LOCALITY IN ZAMBIA: Solwezi, in Northwestern Province.
LARVAL HOSTPLANT(S): Larval foodplants include Camellia sinensis (L.) Kuntze (Theaceae) and a yet to be identified Rubiaceae species, Coffea sp.
SOURCES: African Moths 2019; De Prins & De Prins 2022; Janse 1964.
Genus Neomocena Janse, 1964
description: Published as part of Mbata, Keith J. & Prins, Jurate De, 2023, Annotated checklist of moths of Zambia (Insecta: Lepidoptera), pp. 1-503 in Zootaxa 5354 (1) on page 60, DOI: 10.11646/zootaxa.5354.1.1, http://zenodo.org/record/10130434
Detailed nuclear structure calculations for coherent elastic neutrino-nucleus scattering
Creators: name: Khaleq, Raghda Abdel
name: Newstead, Jayden L.
name: Simenel, Cedric
name: Stuchbery, Andrew E.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Any discovery of `new physics' in the neutrino sector first requires a precise prediction of the expected Standard Model cross section. Currently, Coherent Elastic neutrino-Nucleus Scattering (CEvNS) experiments are statistics limited. However, as new and future experiments scale up, it will be necessary to improve the theoretical predictions. Here we review the calculation of the CEvNS cross section in a consistent theory of hadronic currents and compute the relevant nuclear form factors using the nuclear shell model. The uncertainty on the form factors is explored by repeating the calculation for various shell model interactions and with Skyme-Hartree-Fock evaluations of the Weak-charge radii. We then refine the Standard Model predictions for the recent experimental results of the COHERENT experiment. We find that our cross sections are in good agreement with previous predictions, but with significantly smaller uncertainties - by up to a factor of 10. Near-future CEvNS experiments will meaningfully benefit from improved predictions through an increased sensitivity to new-physics signals.
description: 11 pages, 4 figs (plus appendicies). Updated version accepted for publication
Defeating the Downgrade Attack on Identity Privacy in 5G
Creators: name: Khan, Mohsin
name: Ginzboorg, Philip
name: Järvinen, Kimmo
name: Niemi, Valtteri
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: 3GPP Release 15, the first 5G standard, includes protection of user identity privacy against IMSI catchers. These protection mechanisms are based on public key encryption. Despite this protection, IMSI catching is still possible in LTE networks which opens the possibility of a downgrade attack on user identity privacy, where a fake LTE base station obtains the identity of a 5G user equipment. We propose (i) to use an existing pseudonym-based solution to protect user identity privacy of 5G user equipment against IMSI catchers in LTE and (ii) to include a mechanism for updating LTE pseudonyms in the public key encryption based 5G identity privacy procedure. The latter helps to recover from a loss of synchronization of LTE pseudonyms. Using this mechanism, pseudonyms in the user equipment and home network are automatically synchronized when the user equipment connects to 5G. Our mechanisms utilize existing LTE and 3GPP Release 15 messages and require modifications only in the user equipment and home network in order to provide identity privacy. Additionally, lawful interception requires minor patching in the serving network.
Branching Transition of a Directed Polymer in Random Medium
Creators: name: Sartoni, Giovanni
name: Stella, Attilio L.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: A directed polymer is allowed to branch, with configurations determined by global energy optimization and disorder. A finite size scaling analysis in 2D shows that, if disorder makes branching more and more favorable, a critical transition occurs from the linear scaling regime first studied by Huse and Henley [Phys. Rev. Lett. 54, 2708 (1985)] to a fully branched, compact one. At criticality clear evidence is obtained that the polymer branches at all scales with dimension ${\bar d}_c$ and roughness exponent $ζ_c$ satisfying $({\bar d}_c-1)/ζ_c = 0.13\pm 0.01$, and energy fluctuation exponent $ω_c=0.26 \pm0.02$, in terms of longitudinal distance
description: REVTEX, 4 pages, 3 encapsulated eps figures
title: Pharmazeutische Zentralhalle für Deutschland 56. Jahrgang 1915
Creators: name: :None
Publisher: name: Schneider
Year: 1915
Subjects: subject: 615

description: Pharmazeutische Zentralhalle für Deutschland: Zeitschrift für wissenschaftliche, praktische und geschäftliche Interessen der Pharmazie, vol. 56. 1915
Africa's Appendix: The Discursive Construction of Colonial South Africa
Creators: name: Bialas, Zbigniew
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 1997

description: Το άρθρο απoτελεί μια ανάλυση επιλεκτικών πτυχών της αποικιακής (πρo-απαρτχάιντ) αντίληψης της Νότιας Αφρικής με επικέντρωση σε συμβολικές ενέργειες. Μεταξύ των αντιπροσωπευτικών ιστορικών γεγονότων που συζητούνται εδώ, το πρώτο απoκαλύπτει την ιδεολογική οργάνωση του 15oυ αιώνα που επηρέασε την απόβαση των Dias και da Gama στις ακτές της Νότιας Αφρικής. Ο αναγεννησιακός ζήλος της προ-εμπορευματοποίησης εκείνη την εποχή προσανατολίζονταν ακόμα προς τις θαλάσσιες εξερευνήσεις και, κατά συνέπεια, οι Πορτογάλοι ναύτες δεν σκόπευαν να διεισδύσουν στο εσωτερικό. Διέθεταν, ωστόσο, αρκετή θέληση, ώστε να αδειάσουν προπαρασκευαστικά και συμβολικά τη γη ξεριζώνοντας τους ιθαγενείς. Το δεύτερο περιστατικό, από το 17o αιώνα, αντανακλά την ανεπιτυχή προσπάθεια των Fitzherbert και Shillinge να καταλάβουν το Ακρωτήριο και μια παλιμψεστική προσπάθεια να χτίσουν στην άδεια έκταση, προσφέροντας -μεσω ανέγερσης συμβολικών σημάτων- ίχνη καλωσορίσματος για τις μελλοντικές χαρτογραφικές και απoικιακές προσπάθειες. Το τελευταίο γεγονός παρουσιάζει τον επίσημο πρωτοπόρο της Νότιας Αφρικής στην εμπορική γεωγραφία, John Barrow -που ξεκίνησε τη χαρτογραφική περιπέτεια στο εσωτερικό της χώρας- να είναι απασχoλημένoς με το μέτρημα της περιοχής η οποία είχε συμβολικά εκκενωθεί από τον Bartolomeo Dias και τον Vasco da Gama και στην οποία είχαν γίνει αργότερα πολλαπλές αναφορές από τον Fitzherbert και τον Shillinge. Αυτά συνέβαιναν στα τέλη του 18ου αιώνα, την εποχή, στην περιοχή της Νότιας Αφρικής, που η χαρτογραφική τάση μετρήσεων, προσδιορισμών και ιεραρχήσεων της γης συνδέθηκε άμεσα με το έργο της αποικιακής επέκτασης.
description: Gramma: Journal of Theory and Criticism, Vol 5 (1997): Text / History / Context
Distant field BHB stars and the mass of the Galaxy I: Classification of halo A-type stars
Creators: name: Clewley, L.
name: Warren, S. J.
name: Hewett, P. C.
name: Norris, John E.
name: Peterson, R. C.
name: Evans, N. W.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This is the first in a series of three papers presenting a new calculation of the mass of the Galaxy based on radial velocities and distances measured for a sample of some 100 faint 16 < B < 20 field blue horizontal-branch (BHB) stars. This study aims to reduce the uncertainty in the measured mass of the Galaxy by increasing the number of halo objects at Galactocentric distances r>30 kpc with measured radial velocities by a factor five. Faint A-type stars in the Galactic halo have been identified from UBR photometry in six UK Schmidt fields. We obtain accurate CCD photometry and spectra to classify these stars. This paper describes our methods for separating out clean samples of BHB stars in a way that is efficient in terms of telescope time required. We use the high signal-to-noise ratio (S/N) spectra of A-type stars of Kinman, Suntzeff & Kraft (published in 1994) to assess the reliability of two methods, and to quantify the S/N requirements. First we revisit, refine and extend the hydrogen line width versus colour relation as a classifier. The second method is new and compares the shapes of the Balmer lines. Using the equivalent width of the Ca II K line as an additional filter we find we can reproduce Kinman, Suntzeff & Kraft's classifications with both methods.
description: 12 pages, 14 figures. Accepted for publication in MNRAS Balmer-line fitting routine available at http://astro.ic.ac.uk/Research/Extragal/milkyway.html
title: Organisationsplan der TU Braunschweig, Carl-Friedrich-Gauß-Fakultät Verlagerung der Abteilung „Algebra und Diskrete Mathematik" vom „Institut Computational Mathematics" zum „Institut für Analysis und Algebra"
Creators: name: :None
Publisher: name: Technische Universität Braunschweig. Fakultät 1
Year: 2019
Subjects: subject: Organisationsplan
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 1277
Raman-scattered laser guide star photons to monitor the scatter of astronomical telescope mirrors
Creators: name: Vogt, F. P. A.
name: Álvarez, J. L.
name: Calia, D. Bonaccini
name: Hackenberg, W.
name: Bourget, P.
name: Aranda, I.
name: Bellhouse, C.
name: Blanchard, I.
name: Cerda, S.
name: Cid, C.
name: Comin, M.
name: Contreras, M. Espinoza
name: Hau, G.
name: Hibon, P.
name: Holzlöhner, R.
name: Jaffé, Y. L.
name: Kolb, J.
name: Kuntschner, H.
name: Madec, P. -Y.
name: Mieske, S.
name: Milli, J.
name: Opitom, C.
name: Parraguez, D.
name: Romero, C.
name: Selman, F.
name: Schmidtobreick, L.
name: Smoker, J.
name: Urrutia, S. Vera
name: Zins, G.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The first observations of laser guide star photons Raman-scattered by air molecules above the Very Large Telescope (VLT) were reported in June 2017. The initial detection came from the Multi-Unit Spectroscopic Explorer (MUSE) optical integral field spectrograph, following the installation of the 4 Laser Guide Star Facility (4LGSF) on the Unit Telescope 4 (UT4) of the VLT. In this Letter, we delve further into the symbiotic relationship between the 4LGSF laser guide star system, the UT4 telescope, and MUSE by monitoring the spectral contamination of MUSE observations by Raman photons over a 27 month period. This dataset reveals that dust particles deposited on the primary and tertiary mirrors of UT4 -- responsible for a reflectivity loss of ~8% at 6000Å -- contribute (60$\pm5)% to the laser line fluxes detected by MUSE. The flux of Raman lines, contaminating scientific observations acquired with optical spectrographs, thus provides a new, non-invasive means to monitor the evolving scatter properties of the mirrors of astronomical telescopes equipped with laser guide star systems.
description: 5 pages, 3 figures, 1 table, accepted for publication in A&A Letters
Mode-coupling in rotating gravitational collapse: Gravitational and electromagnetic perturbations
Creators: name: Hod, Shahar
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the late-time evolution of {\it gravitational} and electromagnetic perturbations in realistic {\it rotating} Kerr spacetimes. We give a detailed analysis of the mode-coupling phenomena in rotating gravitational collapse. A consequence of this phenomena is that the late-time tail is dominated by modes which, in general, may have an angular distribution different from the original one. In addition, we show that different types of fields have {\it different} decaying rates. This result turns over the traditional belief (which has been widely accepted during the last three decades) that the late-time tail of gravitational collapse is universal.
description: 16 pages
Nature's Archives: Emerson and the Sepulchres of History
Creators: name: Cadava, Eduardo
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 1997

description: Τo άρθρο επικεντρώνεται στις σχέσεις μεταξύ του δοκιμίου του Έμερσον Η Φύση και μερικών από τα σημαντικότερα κοινωνικο-πολιτικά και θρησκευτικά θέματα των ημερών του -θέματα που εκφράζονται σε κείμενα των Thomas Paine και Daniel Webster- και παρουσιάζει τους τρόπους με τους οποίους οι λέξεις και οι προτάσεις του Έμερσον όχι μόνο ανοίγονται προς την ιστορία που είναι σφραγισμένη μέσα τους, αλλά επίσης, μέσω αυτού του ανοίγματος, λειτουργούν με τρόπο που να καταγράφουν ήδη μεταβαλλόμενες ιστορικές και πολιτικές σχέσεις, αυτό που αλλού ονομάζει «εφήμερα σύννεφα των περιστάσεων». Προσπαθώ, λοιπόν, να κατανοήσω τι εννοεί όταν ισχυρίζεται ότι «η γλώσσα είναι το αρχείο της ιστορίας». Ισχυρίζομαι ότι για τον Έμερσον δεν υπάρχει γεγονός τέτοιο που να θεωρείται ότι 'εγκαινιάζει' την ιστορία. Το ότι δεν μπορεί να υπάρξει γλώσσα που να μην αναφέρεται στην ιστορία, ούτε ιστορία που να μην αναφέρεται σε γλώσσα έχει ως επακόλουθο, για αυτόν, ότι το έργο της ιστορικής ανάγνωσης σημαίνει εντοπισμό όχι μόνο του τρόπου με τον οποίο ένα κείμενο μοιράζεται τη γλώσσα του με άλλα κείμενα (πώς είναι τοποθετημένο μέσα σε ένα συγκεκριμένο ή γενικό ιστορικό πλαίσιο, πώς εγγράφεται σε μία αλυσίδα έργων) , αλλά επίσης και εντοπισμό αυτού που παραμένει ιδιωματικό στο κείμενο (πώς επιβεβαιώνει αυτό το πλαίσιο ακόμα και όταν το προδίδει, ακόμα κι όταν το προδίδει για να το σεβαστεί) . Στην ανάγνωσή μου , λοιπόν, της αρχής του δοκιμίου του Έμερσον προσπάθησα να παραμείνω πιστός σε αυτό το έργο της ανάγνωσης.
description: Gramma: Journal of Theory and Criticism, Vol 5 (1997): Text / History / Context
ZTF SN Ia DR2: Peculiar velocities impact on the Hubble diagram
Creators: name: Carreres, B.
name: Rosselli, D.
name: Bautista, J. E.
name: Feinstein, F.
name: Fouchez, D.
name: Racine, B.
name: Ravoux, C.
name: Sanchez, B.
name: Dimitriadis, G.
name: Goobar, A.
name: Johansson, J.
name: Nordin, J.
name: Rigault, M.
name: Smith, M.
name: Amenouche, M.
name: Aubert, M.
name: Barjou-Delayre, C.
name: Burgaz, U.
name: Kenworthy, W. D'Arcy
name: De Jaeger, T.
name: Dhawan, S.
name: Galbany, L.
name: Ginolin, M.
name: Kuhn, D.
name: Kowalski, M.
name: Müller-Bravo, T. E.
name: Nugent, P. E.
name: Popovic, B.
name: Rosnet, P.
name: Ruppin, F.
name: Sollerman, J.
name: Terwel, J. H.
name: Townsend, A.
name: Groom, S. L.
name: Kulkarni, S. R.
name: Purdum, J.
name: Rusholme, B.
name: Sravan, N.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: SNe Ia are used to determine the distance-redshift relation and build the Hubble diagram. Neglecting their host-galaxy peculiar velocities (PVs) may bias the measurement of cosmological parameters. The smaller the redshift, the larger the effect is. We use realistic simulations of SNe Ia observed by the Zwicky Transient Facility (ZTF) to investigate the effect of different methods to take into account PVs. We study the impact of neglecting galaxy PVs and their correlations in an analysis of the SNe Ia Hubble diagram. We find that it is necessary to use the PV full covariance matrix computed from the velocity power spectrum to take into account the sample variance. Considering the results we have obtained using simulations, we determine the PV systematic effects in the context of the ZTF DR2 SNe Ia sample. We determine the PV impact on the intercept of the Hubble diagram, $a_B$, which is directly linked to the measurement of $H_0$. We show that not taking into account PVs and their correlations results in a shift of the $H_0$ value of about $1.0$km.s$^{-1}$.Mpc$^{-1}$ and a slight underestimation of the $H_0$ error bar.
description: 12 pages, 4 figures
Everyday Retrospectives: Updike and the American Twentieth Century
Creators: name: Corner, Martin
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 1997

description: Το άρθρο εξετάζει την αναδρομική θεώρηση της Αμερικής του εικοστού αιώνα από τον John Updike, κυρίως μέσω μιας συζήτησης του τελευταίου του μυθιστορήματος, In the Beauty of the Lilies (Στην Ομορφιά των Κρίνων, 1996). Πιστεύω ότι η εξερεύνηση της Αμερικής αυτού του αιώνα από τον συγγραφέα εστιάζεται σε ένα κεντρικό πρόβλημα, αυτό της αντιπαράθεσης μεταξύ του 'καθημερινού' και μιας ασφαλούς ανθρωπότητας. Η προσέγγιση αυτού του προβλήματος από τον Updike έχει τη θέση της σε μια συζήτηση που ξεκινά με το κίνημα του Ρομαντισμού και συνεχίζεται μέχρι τον κλασσικό μοντερνισμό του Heidegger στη δεκαετία του 1920. Ο Updike φαίνεται να εξερευνά το πρόβλημα από δύο διαφορετικές οπτικές: αυτή της εμπειρίας του ατόμου, στην τετραλογία του 'Rabbit', και αυτή της εμπειρίας ενός πολιτισμού στο τελευταίο του μυθιστόρημα. Προτείνω ότι η λύση του συγγραφέα για το πρόβλημα της καθημερινότητας βρίσκεται σε μία αισθητική της ιδιαιτερότητας, την οποία ορίζει ως καθοριστική ανθρώπινη ιδιότητα.
description: Gramma: Journal of Theory and Criticism, Vol 5 (1997): Text / History / Context
title: Equivalence between Gromov-Witten invariants: domain dependent pertubation and Kuranishi structure approaches
Creators: name: Qin, Yuguo
Publisher: name: Humboldt-Universität zu Berlin
Year: 2025
Subjects: subject: Kurven vom Geschlecht null
subject: Rationaler Pseudozyklus
subject: Virtuelle Fundamentalklasse
subject: Kuranishi-Struktur
subject: Domänenabhängige Störung
subject: Gromov-Witten-Invarianten
subject: Genus zero curves
subject: Rational pseudocycle
subject: Virtual fundamental class
subject: Kuranishi structure
subject: Domain dependent perturbation
subject: Gromov-Witten invariants
subject: 510 Mathematik

description: In dieser Dissertation etablieren wir, dass für Kurven vom Geschlecht null die Homologieklasse, die durch den von Cieliebak und Mohnke mittels domänenabhängiger Störung konstruierten rationalen Pseudozyklus induziert wird, äquivalent ist zu der Homologieklasse, die durch die von Fukaya mittels Kuranishi-Struktur definierte virtuelle Fundamentalklasse induziert wird.
description: In this thesis, we establish that for genus zero curves, the homology class induced by the rational pseudocycle—constructed by Cieliebak and Mohnke through domain dependent perturbation—is equivalent to the homology class induced by the virtual fundamental class defined by Fukaya using Kuranishi structure.
Tragic Character and Ideology in King Lear
Creators: name: Krontiris, Tina
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 1997

description: Στο Βασιλιά Ληρ υπάρχει απουσία των προνομίων που παραδοσιακά αποδίδονταν στον τραγικό πρωταγωνιστή: δε δίνονται εξαιρετικές ιδιότητες στον Ληρ. Επιπλέον, το έργο αρνείται να επιστρέψει στην τάξη πραγμάτων που επικρατούσε πριν την καταστροφή ή να επικυρώσει τις αξίες και τις ιδέες που εκπροσωπούνταν από το γέρο βασιλιά και τους υποστηρικτές του. Παρ’ όλα αυτά καταφέρνει ακόμα να καταστήσει τον πρωταγωνιστή του ικανό να εκμαιεύσει τη συμπαθητική αντίδραση που απαιτείται για το τραγικό αποτέλεσμα. Αυτό το γεγονός, μια αναγκαιότητα που επιβάλλεται από το συγκεκριμένο λογοτεχνικό είδος, έχει ως αποτέλεσμα να καθορίσει τη στάση του Shakespeare προς την αντιπαράθεση που δραματοποιεί: οι διάφορες δραματικές στρατηγικές που χρησιμοποιεί, συμπεριλαμβανομένης και της ρήξης με το τραγικό είδος, τον κατατάσσουν ανάμεσα στους υποστηρικτές του βασιλιά που είχε μόλις κατεβεί στο χαμηλότερο επίπεδο ενός υποκειμένου.
description: Gramma: Journal of Theory and Criticism, Vol 5 (1997): Text / History / Context
Doing History: Deconstructing Text and Context
Creators: name: Maley, Willy
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 1997

description: Για πολλούς Άγγλους ‘Αριστερούς’ θεωρητικούς της λογοτεχνίας, η ‘ιστορία’ συσχετίζεται πιο άμεσα με το ‘αρχαιολογικό’ έργο του Michel Foucault , που διερευνά τους θεωρητικούς σχηματισμούς γύρω από ιδρύματα, επαγγέλματα και επιστήμες, παρά με τα έργα του Jacques Derrida. Αυτό που συνήθως μένει έξω από αυτές τις συμπληρωματικές θεωρήσεις της ιστορίας είναι η ιστορικότητα των κειμένων και η κειμενικότητα της ιστορίας, δηλαδή, οι τρόποι με τους οποίους ένας πολιτισμός αναπαριστά το παρελθόν του σε είδη που δεν καλύπτονται από την περιορισμένη έννοια της λέξης ‘κείμενο’. Μια υλιστική σύλληψη της ιστορίας θα ερχόταν σε αντιδιαστολή με το αυταπόδεικτο της ιστορίας ως πλαίσιο. Αυτό το άρθρο τονίζει περισσότερο την πολλαπλότητα των ιστοριών παρά την ιστορία και οραματίζεται αυτές τις ιστορίες σε μία σχέση με ‘το παρελθόν’ και ‘την κοινωνία’ που δεν είναι απλή και άμεση, γιατί αυτοί οι όροι δεν έχουν νόημα έξω από τις δομές, τις αναπαραστάσεις, τα σημεία και ούτω καθ' εξής, μέσα από τα οποία τις αντιλαμβανόμαστε. Δεν είναι, λοιπόν, θέμα ιστορίας και κοινωνίας, αλλά γλώσσας της κοινωνίας και κοινωνίας της γλώσσας.
description: Gramma: Journal of Theory and Criticism, Vol 5 (1997): Text / History / Context
Phase Dynamics of Nearly Stationary Patterns in Activator-Inhibitor Systems
Creators: name: Hagberg, Aric
name: Meron, Ehud
name: Passot, Thierry
Publisher: name: arXiv
Year: 2000
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The slow dynamics of nearly stationary patterns in a FitzHugh-Nagumo model are studied using a phase dynamics approach. A Cross-Newell phase equation describing slow and weak modulations of periodic stationary solutions is derived. The derivation applies to the bistable, excitable, and the Turing unstable regimes. In the bistable case stability thresholds are obtained for the Eckhaus and the zigzag instabilities and for the transition to traveling waves. Neutral stability curves demonstrate the destabilization of stationary planar patterns at low wavenumbers to zigzag and traveling modes. Numerical solutions of the model system support the theoretical findings.