cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Self-organized criticality in single neuron excitability
Creators: name: Gal, Asaf
name: Marom, Shimon
Publisher: name: arXiv
Year: 2012
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We present experimental and theoretical arguments, at the single neuron level, suggesting that neuronal response fluctuations reflect a process that positions the neuron near a transition point that separates excitable and unexcitable phases. This view is supported by the dynamical properties of the system as observed in experiments on isolated cultured cortical neurons, as well as by a theoretical mapping between the constructs of self organized criticality and membrane excitability biophysics.
description: 5 pages, 2 figures
Paroxyethira opposita Wells & Johanson 2012, new species
Creators: name: Wells, A.
name: Johanson, K. A.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydroptilidae
Paroxyethira
Paroxyethira opposita

description: Paroxyethira opposita, new species Figs 13–15 This species most closely resembles P. asymmetrica but differs in having the left gonopod short, not the right, and in lacking any lateral lobes on abdominal segment IX. It is distinguished from other species with markedly unequal gonopods by the very short phallic sheath. The female is unknown. Male antennae each with 21 flagellomeres. Forewing length. Male 1.9 mm. Male genitalia (Figs 13–15). Median process on abdominal sternite VIII stoutly spatulate; length about 3x width at middle. Abdominal segment IX apico-lateral angles not produced; dorsally with distal margin narrowly cleft. Gonopods unequal; right elongate, more than 2x length of left; both bearing dense brushes of stout black setae. Phallic apparatus as in Fig. 5, forming slender, straight, elongate tube; constricted at 1/4 length at which constriction arises short, threadlike titillator. Phallic sheath (Fig. 14) short, broad; in ventral view conical; 1 seta at apex of cone, 1 seta dorsally, 1 stout black spur near base on left; proximally with anteriorly directed apodeme. Female: unknown. Holotype male: Province Nord, Plaine des Gaïacs, Rivière Rouge, 14.2 km NW summit of Mt. Rouge, 50 m upstream road RT1 Noumea-Koné, 20°31.573'S, 164°46.690'E, 23 m, 2.i.2004, light trap, loc#104, leg. K.A. Johanson (MNHP). Etymology: Opposita, named for the conversely arranged gonopods in comparison with P. asymmetrica.
description: Published as part of Wells, A. & Johanson, K. A., 2012, Review of the New Caledonian species of Paroxyethira Mosely, 1924 (Trichoptera: Hydroptilidae), pp. 330-344 in Zootaxa 3478 on page 335
One-point extensions and local topological properties
Creators: name: Koushesh, M. R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 54D35

description: A space $Y$ is called an extension of a space $X$ if $Y$ contains $X$ as a dense subspace. An extension $Y$ of $X$ is called a one-point extension of $X$ if $Y\backslash X$ is a singleton. P. Alexandroff proved that any locally compact non-compact Hausdorff space $X$ has a one-point compact Hausdorff extension, called the one-point compactification of $X$. Motivated by this, S. Mrówka and J.H. Tsai [On local topological properties. II, Bull. Acad. Polon. Sci. Sér. Sci. Math. Astronom. Phys. 19 (1971), 1035-1040] posed the following more general question: For what pairs of topological properties ${\mathscr P}$ and ${\mathscr Q}$ does a locally-${\mathscr P}$ space $X$ having ${\mathscr Q}$ possess a one-point extension having both ${\mathscr P}$ and ${\mathscr Q}$? Here, we provide an answer to this old question.
description: 4 pages
Can we distinguish between black holes and wormholes by their Einstein-ring systems?
Creators: name: Tsukamoto, Naoki
name: Harada, Tomohiro
name: Yajima, Kohji
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: For the last decade, the gravitational lensing in the strong gravitational field has been studied eagerly. It is well known that, for the lensing by a black hole, infinite number of Einstein rings are formed by the light rays which wind around the black hole nearly on the photon sphere, which are called relativistic Einstein rings. This is also the case for the lensing by a wormhole. In this paper, we study the Einstein ring and relativistic Einstein rings for the Schwarzschild black hole and the Ellis wormhole, the latter of which is an example of traversable wormholes of the Morris-Thorne class. Given the configuration of the gravitational lensing and the radii of the Einstein ring and relativistic Einstein rings, we can distinguish between a black hole and a wormhole in principle. We conclude that we can detect the relativistic Einstein rings by wormholes which have the radii of the throat $a\simeq 0.5$pc at a galactic center with the distance 10Mpc and which have $a\simeq 10$AU in our galaxy using by the most powerful modern instruments which have the resolution of $10^{-2}$arcsecond such as a 10-meter optical-infrared telescope. The black holes which make the Einstein rings of the same size as the ones by the wormholes are galactic supermassive black holes and the relativistic Einstein rings by the black holes are too small to measure at this moment. We may test some hypotheses of astrophysical wormholes by using the Einstein ring and relativistic Einstein rings in the future.
description: 13 pages, 2 figures, minor changes from v2
Vorwort
Creators: name: Bärenfänger, Rolf
name: Haßmann, Henning
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 72 (2003): Nachrichten aus Niedersachsens Urgeschichte
Zur Archäologie mittelalterlicher Burgen aus Holz und Erde zwischen Ems und Ostsee
Creators: name: Heine, Hans-Wilhelm
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 72 (2003): Nachrichten aus Niedersachsens Urgeschichte
Glyceridae
Creators: name: Pagliosa, Paulo Roberto
name: Doria, João Gabriel
name: Alves, Giorgia Freitas
name: Almeida, Tito Cesar Marques De
name: Lorenzi, Luciano
name: Netto, Sergio Antonio
name: Lana, Paulo Da Cunha
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Phyllodocida
Glyceridae

description: Family Glyceridae   Species: Glycera americana Leidy 1855
References: Temperini (1981), Coelho (1992), Marenzi (2002), Almeida (2007), Biz (2008), Francisco (2008),
Netto & Pereira (2008), Becker (2009), Domingos (2010), Oortman (2010)
Environment: Bay, coastal lagoon, estuarine beach, salt marsh, tidal flat, outer continental shelf
Depth: Intertidal– 94 m
Coordinates: 28°05'S / 48°07'W, 27°27'S / 48°37'W, 28°29'15"S / 48°47'27"W, 26°46'10"S / 48°47'45"W, 26°12'59"S / 48°36'39"W, 26°13'29"S / 48°37'13"W, 26°12'49"S / 48°36'51"W, 26°12'50"S / 48°39'24"W, 26°11'59"S / 48°37'41"W, 26°12'08"S / 48°37'32"W, 26°10'59"S / 48°36'19"W, 26°11'27"S / 48°37'50"W, 26°10'21"S / 48°46'26"W, 26°10'24"S / 48°46'38"W, 26°10'04"S / 48°45'55"W
 Species: Glycera lapidum Quatrefages 1865
References: Amaral & Rossi-Wongtschowski (2004)
Environment: Continental slope
Depth: 165 m
Coordinates: 26°27'45"S / 44°30'21"W
 Species: Glycera oxycephala Ehlers 1887
References: Attolini (2002), Amaral & Rossi-Wongtschowski (2004), Pagliosa (2006)
Environment: Estuarine beach, bay, continental slope
Depth: intertidal– 228 m
Coordinates: 26°22'30"S / 46°38'30"W, 27°19'12"S / 47°09'W, 26°12'S / 48°36'W, 27°48'S / 47°24'6"W, 26°27'45"S /
44°30'21"W
 Species: Hemipodia californiensis (Hartman 1938)
References: Coelho (1992), Amaral & Morgado (1998), Alves (2004), Costa (2007), Broocke (2008), Egres (2008)
 as Hemipodus olivieri.
Owczarzak (2009)
Environment: Sand beach, estuarine beach, tidal flat
Depth: Intertidal
Coordinates: 27°27'S / 48°37'W, 27°00'14"S / 48°34'52"W, 26°10'28.2"S / 48°32'7.44"W, 26°13'5.22"S / 48°30'53.76"W, 26°56'45"S / 48°37'37"W, 26°14'29"/ 48°30'24"W, 26°52'12"S / 48°38'06"W, 27°38'33"S / 48°31'41"W, 27°37'54"S / 48°31'51"W, 27°38'16"S / 48°32'37"W, 27°36'58"S / 48°33'10"W, 27°36'59"S / 48°33'43"W, 26°19'30"S / 48°32'49"W, 27°36'57"S / 48°32'33"W
 Species: Hemipodia simplex (Grube 1857) References: Souza (2008), Almeida et al. (2012) Environment: Bay, inner continental shelf Depth: 1–12 m
Coordinates: 27°35'S / 48°35'W
Museum: IBUFRJ-1117
description: Published as part of Pagliosa, Paulo Roberto, Doria, João Gabriel, Alves, Giorgia Freitas, Almeida, Tito Cesar Marques De, Lorenzi, Luciano, Netto, Sergio Antonio & Lana, Paulo Da Cunha, 2012, Polychaetes from Santa Catarina State (southern Brazil): checklist and remarks on species distribution, pp. 1-49 in Zootaxa 3486 on pages 16-17, DOI: 10.5281/zenodo.213667
Improving power posterior estimation of statistical evidence
Creators: name: Friel, Nial
name: Hurn, Merrilee
name: Wyse, Jason
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: The statistical evidence (or marginal likelihood) is a key quantity in Bayesian statistics, allowing one to assess the probability of the data given the model under investigation. This paper focuses on refining the power posterior approach to improve estimation of the evidence. The power posterior method involves transitioning from the prior to the posterior by powering the likelihood by an inverse temperature. In common with other tempering algorithms, the power posterior involves some degree of tuning. The main contributions of this article are twofold -- we present a result from the numerical analysis literature which can reduce the bias in the estimate of the evidence by addressing the error arising from numerically integrating across the inverse temperatures. We also tackle the selection of the inverse temperature ladder, applying this approach additionally to the Stepping Stone sampler estimation of evidence.
description: Revised version (to appear in Statistics and Computing). This version corrects the typo in Equation (17), with thanks to Sabine Hug for pointing this out
Archäologische Forschungen zum Spätmittelalter im Oldenburger Land
Creators: name: Bärenfänger, Rolf
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Archäologische Forschungen zum Spätmittelalter im Oldenburger Land. Teil I: Marion Brüggler, Die Ausgrabungen im Zisterzienserkloster Hude, Lkr. Oldenburg; Teil II: Jonathan Scheschkewitz, Die Ausgrabungen auf der Welsburg, Gde. Dötlingen, Lkr. Oldenburg. Mit einem Beitrag von Heinrich Schmidt. Beiträge zur Archäologie in Niedersachsen, Band 3. Verlag Marie Leidorf GmbH, Rahden/Westf. 2002. 275 S. zuzügl. 115 S. Tafeln. ISBN 3-89646- 923-1, ISSN 1439-7552
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 72 (2003): Nachrichten aus Niedersachsens Urgeschichte
AdS-inspired noncommutative gravity on the Moyal plane
Creators: name: Dimitrijevic, Marija
name: Radovanovic, Voja
name: Stefancic, Hrvoje
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider noncommutative gravity on a space with canonical noncommutativity that is based on the commutative MacDowell-Mansouri action. Gravity is treated as gauge theory of the noncommutative $SO(1,3)_\star$ group and the Seiberg-Witten (SW) map is used to express noncommutative fields in terms of the corresponding commutative fields. In the commutative limit the noncommutative action reduces to the Einstein-Hilbert action plus the cosmological term and the topological Gauss-Bonnet term. After the SW expansion in the noncommutative parameter the first order correction to the action, as expected, vanishes. We calculate the second order correction and write it in a manifestly gauge covariant way.
description: 22 pages, no figures, final version
Alt-, mittel- und jungsteinzeitliche Funde aus der Umgebung von Tostedt, Ldkr. Harburg
Creators: name: Breest, Klaus
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 73 (2004): Nachrichten aus Niedersachsens Urgeschichte
Measurable events indexed by products of trees
Creators: name: Dodos, Pandelis
name: Kanellopoulos, Vassilis
name: Tyros, Konstantinos
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: A tree $T$ is said to be homogeneous if it is uniquely rooted and there exists an integer $b\meg 2$, called the branching number of $T$, such that every $t\in T$ has exactly $b$ immediate successors. A vector homogeneous tree $\mathbf{T}$ is a finite sequence $(T_1,...,T_d)$ of homogeneous trees and its level product $\otimes\mathbf{T}$ is the subset of the cartesian product $T_1\times ...\times T_d$ consisting of all finite sequences $(t_1,...,t_d)$ of nodes having common length. We study the behavior of measurable events in probability spaces indexed by the level product $\otimes\mathbf{T}$ of a vector homogeneous tree $\mathbf{T}$. We show that, by refining the index set to the level product $\otimes\mathbf{S}$ of a vector strong subtree $\bfcs$ of $\mathbf{S}$, such families of events become highly correlated. An analogue of Lebesgue's density Theorem is also established which can be considered as the "probabilistic" version of the density Halpern--Läuchli Theorem.
description: 37 pages, no figures; Combinatorica, to appear. This article is a sequel to and draws heavily from arXiv:1105.2419
Zu den email verzierten Fibeln der vorrömischen Eisenzeit vom Typ „Helmshagen“
Creators: name: Wendowski-Schünemann, Andreas
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 73 (2004): Nachrichten aus Niedersachsens Urgeschichte
Single Perturbative Splitting Diagrams in Double Parton Scattering
Creators: name: Gaunt, Jonathan R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a detailed study of a specific class of graph that can potentially contribute to the proton-proton double parton scattering (DPS) cross section. These are the `2v1' or `single perturbative splitting' graphs, in which two `nonperturbatively generated' (NP) ladders interact with two ladders that have been generated via a perturbative 1->2 branching process. Using a detailed calculation, we confirm the result first written down by Ryskin and Snigirev, that 2v1 graphs in which the two NP ladders do not interact with one another do contribute to the LO proton-proton DPS cross section, albeit with a different geometrical prefactor to the one that applies to the `2v2'/`zero perturbative splitting' graphs. We then show that 2v1 graphs in which the NP ladders exchange partons with one another also contribute to the LO proton-proton DPS cross section, provided that this `crosstalk' occurs at a lower scale than the 1->2 branching on the other side of the graph. Due to the preference in the 2v1 graphs for the x value at which the branching occurs/crosstalk ceases to be much larger than x values at the hard scale, the effect of crosstalk interactions is likely to be a decrease in the 2v1 cross section except at very small x values (< 10^-6). At moderate x values ~10^-3 - 10^-2, the x value at the splitting is in the region ~10^-1 where PDFs do not change much with scale, and crosstalk effects are likely to be small. We give an explicit formula for the contribution from the 2v1 graphs to the DPS cross section, and combine this with the suggestion that `double perturbative splitting'/`1v1' graphs should be removed from this cross section made in a previous publication, to obtain a formula for the DPS cross section. We point out that there are two potentially concerning features in this equation, that might indicate that our prescription for handling the 1v1 graphs is not quite correct.
description: 31 pages, 7 figures, 1 table. Added discussion about numerical impact of crosstalk, and modified abstract and conclusions accordingly. Published version
Manfred Rech, Gefundene Vergangenheit-Archäologie des Mittelalters in Bremen mit besonderer Berücksichtigung von Riga
Creators: name: Brüggler, Marion
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Manfred Rech, Gefundene Vergangenheit-Archäologie des Mittelalters in Bremen mit besonderer Berücksichtigung von Riga. Begleitpublikation zur gleichnamigen Ausstellung im Focke-Museum/Bremer Landesmuseum vom 19. November 2003 bis 28. März 2004. Bremer Archäologische Blätter, Beiheft 3. Focke-Museum / Bremer Landesmuseum, Bremen 2004. 431 Seiten mit 401 überwiegend farbigen Abbildungen. Gebunden. ISBN 3-7749-3233-6
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 73 (2004): Nachrichten aus Niedersachsens Urgeschichte
Stefan Krabath, Die hoch- und spätmittelalterlichen Buntmetallfunde nördlich der Alpen
Creators: name: Brüggler, Marion
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Stefan Krabath, Die hoch- und spätmittelalterlichen Buntmetallfunde nördlich der Alpen. Eine archäologisch-kunsthistorische Untersuchung zu ihrer Herstellungstechnik, funktionalen und zeitlichen Bestimmung. Internationale Archäologie, Band 63. Teil 1: Text. Teil 2: Katalog u. Tafeln. Hrsg, von Claus Dobiat und Klaus Leidorf. Rahden/Westfalen: Verlag Marie Leidorf GmbH 2001. 652 Seiten mit 73 Abbildungen, 15 Tabellen, 9 Diagramme und 67 Karten; 160 Tafeln. Hartkarton mit Glanzfolie. ISBN 3-89646-335-7
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 73 (2004): Nachrichten aus Niedersachsens Urgeschichte
Paroxyethira atypica Wells & Johanson 2012, new species
Creators: name: Wells, A.
name: Johanson, K. A.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydroptilidae
Paroxyethira
Paroxyethira atypica

description: Paroxyethira atypica, new species Figs 16–18, 37, 38 The male of P. atypica is distinguished by having the paired gonopods in ventral view parallel in midline, and almost equal in length, whereas other New Caledonian species have the gonopods either widely separated or divergent, often unequal in length. The phallic sheath has a long slender curved spine arising apically and curving widely, forming a rounded hook, in contrast to the rather similar phallic sheath in P. dzumac, new species, which has a short, slender, curved process arising at the apex, or P. hamata, new species, which has a broad, strap-like anteriorly directed process arising subapically. The female shares with that of P. dzumac, a single curving process distally on abdominal tergite VIII, but in P. atypica it is swollen and bulbous subapically, in P. dzumac straplike. Male antennae each with 19 flagellomeres; female antennae each with 16 flagellomeres. Forewing length. Male 1.2–2.2 mm (n=2); female 2.0– 2.1 mm (n=2). Male genitalia (Figs 16–18). Abdominal sternite VII bearing short sharp spur medially. Median process on abdominal sternite VIII stoutly spatulate; length about 2.5x middle width. Abdominal sternite and tergite IX fused, posterolaterally produced to form narrow, elongate lobes. Gonopods fused at base, both bearing brushes of stout black setae distally. Phallic apparatus slender, elongate; constricted at 1/4 length at which constriction short, threadlike titillator arising. Phallic sheath forming elongate sheath, with long, widely curved spine at apex; 1 elongate seta at base of spine, at about 2/3rds length. Female terminalia (Figs 37, 38). Abdominal sternites VII–VIII fused into stout cone distally, apically truncate; dorsally forming elongate process arising from tergite IX apex, produced posteriorly, expanded subapically. Segment X undivided apically. Holotype male: Province Sud, Mt. Dzumac, source stream of Ouinne River, downstream crosspoint to mountain track, 22°01.997'S, 166°28.486'E, 795 m, over about 30 m waterfall, 18.xi–4.xii.2003, Malaise trap, loc#031, leg. K.A. Johanson (MNHP). Paratypes: Same data as for holotype— 2 females (one on slide) (SMNH); Province Sud, Mt. Dzumac, source stream of Ouinne River, near crosspoint to mountain track, 22°02.073'S, 166°28.460'E, 810 m, 18.xi–4.xii.2003, Malaise trap, loc#030, leg. K.A. Johanson, 1 male (headless), 1 female (SMNH). Etymology: Atypica, referring to the unusual distal process on the female abdominal terminalia.
description: Published as part of Wells, A. & Johanson, K. A., 2012, Review of the New Caledonian species of Paroxyethira Mosely, 1924 (Trichoptera: Hydroptilidae), pp. 330-344 in Zootaxa 3478 on pages 335-337
Results from Long-Term Optical Monitoring of the Soft X-Ray Transient SAX J1810.8-2609
Creators: name: Zhu, Ling
name: DiStefano, Rosanne
name: Wyrzykowski, Lukasz
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this paper we report the long-term optical observation of the faint soft X-ray transient SAX J1810.8-2609 from OGLE and MOA. We have focused on the 2007 outburst, and also did the cross-correlate between its optical light curves and the quasi-simultaneous X-ray observations from swift. Both the optical and X-ray light curves of 2007 outburst show multi-peak features. Quasi-simultaneous optical/X-ray luminosity shows that both the X-ray reprocessing and viscously thermal emission can explain the observed optical flux. There is a slightly X-ray delay of 0.6+-0.3 days during the first peak, while the X-ray emission lags the optical emission by ~2 days during the rebrightening stage, which suggests that X-ray reprocessing emission contributes significantly to the optical flux in the first peak, but the viscously-heated-disk origin dominates the optical flux during rebrightening. It implies variation of the physical environment of the outer disk, even the source stayed in low-hard state during the whole outburst. The ~2 day X-ray lag indicates a small accretion disk of the system, and the optical counterpart was not detected by OGLE and MOA during quiescence, which constrained it to be fainter than MI = 7.5 mag. There is a suspected short-time optical flare detected at MJD = 52583.5 without X-ray counterpart detected, this single flux increase may imply a magnetic loop reconnection in the outer disk as proposed by Zurita et al (2003). The observations cover all stages of the outburst, however, due to the low sensitivity of RXTE/ASM, we cannot conclude whether it is an optical precursor at the initial rise of the outburst.
description: 21 pages, 7 figures, ApJ accepted
On topologizable and non-topologizable groups
Creators: name: Klyachko, A. A.
name: Olshanskii, A. Yu.
name: Osin, D. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Group Theory (math.GR)
subject: General Topology (math.GN)
subject: FOS: Mathematics

description: A group $G$ is called hereditarily non-topologizable if, for every $H\le G$, no quotient of $H$ admits a non-discrete Hausdorff topology. We construct first examples of infinite hereditarily non-topologizable groups. This allows us to prove that c-compactness does not imply compactness for topological groups. We also answer several other open questions about c-compact groups asked by Dikranjan and Uspenskij. On the other hand, we suggest a method of constructing topologizable groups based on generic properties in the space of marked $k$-generated groups. As an application, we show that there exist non-discrete quasi-cyclic groups of finite exponent; this answers a question of Morris and Obraztsov.
Satzung der Archäologischen Kommission für Niedersachsen e. V.
Creators: name: Redaktion, Die
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 73 (2004): Nachrichten aus Niedersachsens Urgeschichte
Arbeitszeitbedarf in der ökologischen Zuchtsauenhaltung
Creators: name: Riegel, Marion
name: Schick, Matthias
name: Klöble, Ulrike
name: Fritzsche, Stephan
Publisher: name: LANDTECHNIK
Year: 2009

description: Zum Arbeitszeitbedarf in der Schweinehaltung und speziell in der ökologischen Schweinehaltung sind in der Literatur kaum zeitgemäße Angaben zu fi nden, welche die veränderten Rahmenbedingungen in der landwirtschaftlichen Praxis berücksichtigen. Im Projekt „Arbeitszeitbedarf in der Schweinehaltung nach der EG-Öko-Verordnung“ von Agroscope Reckenholz-Tänikon (ART) im Rahmen des Arbeitsprogramms Kalkulationsunterlagen des Kuratoriums für Technik und Bauwesen in der Landwirtschaft e.V. (KTBL) wurden praxisnahe Kennzahlen ermittelt. Diese Arbeiten knüpfen an an das Vorhaben „Schweinehaltung nach der EG-Öko-Verordnung — Beschreibung der Produktionsverfahren und Erhebung von Kosten- und Leistungselementen“ von Löser und Aubel [6], das ebenfalls im Rahmen des KTBL Arbeitsprogramms Kalkulationsunterlagen 2007 bearbeitet wurde. Insbesondere wurde für die Berechnung der Arbeitszeitbedarfswerte auf die Stallbaupläne von Löser und Aubel zurückgegriffen.
description: LANDTECHNIK, Bd. 64 Nr. 3 (2009)
title: Acute epididymitis-related global testicular infarction
Creators: name: Lao, I-Ha
Publisher: name: EURORAD
Year: 2023
Subjects: subject: Uroradiology & genital male imaging
subject: Genital / Reproductive system male
subject: MR
subject: Ultrasound
subject: Ultrasound-Colour Doppler
subject: Clinical Case

description: Clinical History: A 44-year-old male, without chronic diseases, presented sudden left scrotal pain, diagnosed as left orchitis and epididymitis at the clinic. The pain worsened despite antibiotics, migrating to the inguinal and flank areas. Ten days later, fever and tachycardia in the emergency room. Laboratory data showed severe leukocytosis.

description: 44 years, male
Constraining Extended Gamma-ray Emission from Galaxy Clusters
Creators: name: Han, Jiaxin
name: Frenk, Carlos S.
name: Eke, Vincent R.
name: Gao, Liang
name: White, Simon D. M.
name: Boyarsky, Alexey
name: Malyshev, Denys
name: Ruchayskiy, Oleg
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Cold dark matter models predict the existence of a large number of substructures within dark matter halos. If the cold dark matter consists of weakly interacting massive particles, their annihilation within these substructures could lead to diffuse GeV emission that would dominate over the annihilation signal of the host halo. In this work we search for GeV emission from three nearby galaxy clusters: Coma, Virgo and Fornax. We first remove known extragalactic and galactic diffuse gamma-ray backgrounds and point sources from the Fermi 2-year catalog and find a significant residual diffuse emission in all three clusters. We then investigate whether this emission is due to (i) unresolved point sources; (ii) dark matter annihilation; or (iii) cosmic rays (CR). Using 45 months of Fermi-LAT data we detect several new point sources (not present in the Fermi 2-year point source catalogue) which contaminate the signal previously analyzed by Han et al.(arxiv:1201.1003). Including these and accounting for the effects of undetected point sources, we find no significant detection of extended emission from the three clusters studied. Instead, we determine upper limits on emission due to dark matter annihilation and cosmic rays. For Fornax and Virgo the limits on CR emission are consistent with theoretical models, but for Coma the upper limit is a factor of 2 below the theoretical expectation. Allowing for systematic uncertainties associated with the treatment of CR, the upper limits on the cross section for dark matter annihilation from our clusters are more stringent than those from analyses of dwarf galaxies in the Milky Way. We rule out the thermal cross section for supersymmetric dark matter particles for masses as large as 100 GeV (depending on the annihilation channel).
description: updated to match published version, with more references added. arXiv admin note: substantial text overlap with arXiv:1201.1003
Jet Charge at the LHC
Creators: name: Krohn, David
name: Lin, Tongyan
name: Schwartz, Matthew D.
name: Waalewijn, Wouter J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Knowing the charge of the parton initiating a light-quark jet could be extremely useful both for testing aspects of the Standard Model and for characterizing potential beyond-the-Standard-Model signals. We show that despite the complications of hadronization and out-of-jet radiation such as pile-up, a weighted sum of the charges of a jet's constituents can be used at the LHC to distinguish among jets with different charges. Potential applications include measuring electroweak quantum numbers of hadronically decaying resonances or supersymmetric particles, as well as Standard Model tests, such as jet charge in dijet events or in hadronically-decaying W bosons in t-tbar events. We develop a systematically improvable method to calculate moments of these charge distributions by combining multi-hadron fragmentation functions with perturbative jet functions and pertubative evolution equations. We show that the dependence on energy and jet size for the average and width of the jet charge can be calculated despite the large experimental uncertainty on fragmentation functions. These calculations can provide a validation tool for data independent of Monte-Carlo fragmentation models.
description: 5 pages, 6 figures; v2 published version
In-plane superfluid density and microwave conductivity of the organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Br: evidence for d-wave pairing and resilient quasiparticles
Creators: name: Milbradt, S.
name: Bardin, A. A.
name: Truncik, C. J. S.
name: Huttema, W. A.
name: Jacko, A. C.
name: Burn, P. L.
name: Lo, S. -C.
name: Powell, B. J.
name: Broun, D. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report the in-plane microwave surface impedance of a high quality single crystal of κ-(BEDT-TTF)2Cu[N(CN)2]Br. In the superconducting state, we find three independent signatures of d-wave pairing: i) a strong, linear temperature dependence of superfluid density; ii) deep in the superconducting state the quasiparticle scattering rate Γ~ T^3; and iii) no BCS coherence peak is observed in the quasiparticle conductivity. Above T_c, the Kadowaki-Woods ratio and the temperature dependence of the in-plane conductivity show that the normal state is a Fermi liquid below ~ 23 K, yet resilient quasiparticles dominate the transport up to ~ 50 K.
description: 7 pages, 3 figures
Critical behaviour of the O(3) nonlinear sigma model with topological term at theta=pi from numerical simulations
Creators: name: Azcoiti, Vicente
name: Di Carlo, Giuseppe
name: Follana, Eduardo
name: Giordano, Matteo
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate the critical behaviour at theta=pi of the two-dimensional O(3) nonlinear sigma model with topological term on the lattice. Our method is based on numerical simulations at imaginary values of theta, and on scaling transformations that allow a controlled analytic continuation to real values of theta. Our results are compatible with a second order phase transition, with the critical exponent of the SU(2)_1 Wess-Zumino-Novikov-Witten model, for sufficiently small values of the coupling.
description: Revised version. 24 pages, 7 figures
Fast generation of spin-squeezed states in bosonic Josephson junctions
Creators: name: Juliá-Díaz, B.
name: Torrontegui, E.
name: Martorell, J.
name: Muga, J. G.
name: Polls, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We describe methods for fast production of highly coherent-spin-squeezed many-body states in bosonic Josephson junctions (BJJs). We start from the known mapping of the two-site Bose-Hubbard (BH) Hamiltonian to that of a single effective particle evolving according to a Schrödinger-like equation in Fock space. Since, for repulsive interactions, the effective potential in Fock space is nearly parabolic, we extend recently derived protocols for shortcuts to adiabatic evolution in harmonic potentials to the many-body BH Hamiltonian. The best scaling of the squeezing parameter for large number of atoms N is ξ^2_S ~ 1/N.
description: Improved and enlarged version, accepted at Phys. Rev. A
Spin current pumping in helical Luttinger liquids
Creators: name: Ferraro, Dario
name: Dolcetto, Giacomo
name: Citro, Roberta
name: Romeo, Francesco
name: Sassetti, Maura
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the DC spin current induced into an unbiased quantum spin Hall system through a two-point contacts setup with time dependent electron tunneling amplitudes. By means of two external gates, it is possible to drive a current with spin-preserving and spin-flipping contributions showing peculiar oscillations as a function of pumping frequency, electron-electron interaction and temperature. From its interference patterns as a function of the Fabry-Perot and Aharonov-Bohm phases, it is possible to extract information about the helical nature of the edge states and the intensity of the electron-electron interaction.
description: 11 pages, 8 figures
The WARPS Survey. VIII. Evolution of the Galaxy Cluster X-ray Luminosity Function
Creators: name: Koens, L. A.
name: Maughan, B. J.
name: Jones, L. R.
name: Ebeling, H.
name: Horner, D. J.
name: Perlman, E. S.
name: Phillipps, S.
name: Scharf, C. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present measurements of the galaxy cluster X-ray Luminosity Function (XLF) from the Wide Angle ROSAT Pointed Survey (WARPS) and quantify its evolution. WARPS is a serendipitous survey of the central region of ROSAT pointed observations and was carried out in two phases (WARPS-I and WARPS-II). The results here are based on a final sample of 124 clusters, complete above a flux limit of 6.5 10E-15 erg/s/cm2, with members out to redshift z ~ 1.05, and a sky coverage of 70.9 deg2. We find significant evidence for negative evolution of the XLF, which complements the majority of X-ray cluster surveys. To quantify the suggested evolution, we perform a maximum likelihood analysis and conclude that the evolution is driven by a decreasing number density of high luminosity clusters with redshift, while the bulk of the cluster population remains nearly unchanged out to redshift z ~ 1.1, as expected in a low density Universe. The results are found to be insensitive to a variety of sources of systematic uncertainty that affect the measurement of the XLF and determination of the survey selection function. We perform a Bayesian analysis of the XLF to fully account for uncertainties in the local XLF on the measured evolution, and find that the detected evolution remains significant at the 95% level. We observe a significant excess of clusters in the WARPS at 0.1 < z < 0.3 and LX ~ 2 10E42 erg/s compared with the reference low-redshift XLF, or our Bayesian fit to the WARPS data. We find that the excess cannot be explained by sample variance, or Eddington bias, and is unlikely to be due to problems with the survey selection function.
description: 13 pages, 12 figures, accepted for publication in MNRAS
Hesionidae
Creators: name: Pagliosa, Paulo Roberto
name: Doria, João Gabriel
name: Alves, Giorgia Freitas
name: Almeida, Tito Cesar Marques De
name: Lorenzi, Luciano
name: Netto, Sergio Antonio
name: Lana, Paulo Da Cunha
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Phyllodocida
Hesionidae

description: Family Hesionidae   Species: Hesione picta Müller 1858 References: Müller (1858)
Environment: unknown
Depth: unknown
Coordinates: unknown
Note: Specimens from the type locality are needed to elucidate the taxonomical position of this species.
 Species: Podarke pugettensis Johnson 1901 References: Silva (2004), Souza (2004), Souza (2008) Environment: Bay, coastal lagoon
Depth: 0.2–4 m
Coordinates: 27°34'S / 48°27'W, 27°35'S / 48°35'W Note: This taxon seems to be endemic to the studied area.
description: Published as part of Pagliosa, Paulo Roberto, Doria, João Gabriel, Alves, Giorgia Freitas, Almeida, Tito Cesar Marques De, Lorenzi, Luciano, Netto, Sergio Antonio & Lana, Paulo Da Cunha, 2012, Polychaetes from Santa Catarina State (southern Brazil): checklist and remarks on species distribution, pp. 1-49 in Zootaxa 3486 on page 18, DOI: 10.5281/zenodo.213667
Using Colors to Improve Photometric Metallicity Estimates for Galaxies
Creators: name: Sanders, Nathan E.
name: Levesque, Emily M.
name: Soderberg, Alicia M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: There is a well known correlation between the mass and metallicity of star-forming galaxies. Because mass is correlated with luminosity, this relation is often exploited, when spectroscopy is not available, to estimate galaxy metallicities based on single band photometry. However, we show that galaxy color is typically more effective than luminosity as a predictor of metallicity. This is a consequence of the correlation between color and the galaxy mass-to-light ratio and the recently discovered correlation between star formation rate (SFR) and residuals from the mass-metallicity relation. Using Sloan Digital Sky Survey spectroscopy of 180,000 nearby galaxies, we derive "LZC relations," empirical relations between metallicity (in seven common strong line diagnostics), luminosity, and color (in ten filter pairs and four methods of photometry). We show that these relations allow photometric metallicity estimates, based on luminosity and a single optical color, that are 50% more precise than those made based on luminosity alone; galaxy metallicity can be estimated to within 0.05 - 0.1 dex of the spectroscopically-derived value depending on the metallicity diagnostic used. Including color information in metallicity estimates also reduces systematic biases for populations skewed toward high or low SFR environments, as we illustrate using the host galaxy of the supernova SN 2010ay. This new tool will lend more statistical power to studies of galaxy populations, such as supernova and gamma-ray burst (GRB) host environments, in ongoing and future wide field imaging surveys.
description: 6 pages, 3 figures, 2 tables; additional plots and updated code available at http://www.cfa.harvard.edu/~nsanders/papers/LZC/summary.htm
Philipp R. Hömberg, Bibliographie zur Vor- und Frühgeschichte Westfalens
Creators: name: Fischer, Ulrich
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Philipp R. Homberg, Bibliographie zur Vor- und Frühgeschichte Westfalens. Veröffentlichungen der Altertumskommission im Provinzialinstitut für Westfälische Landes- und Volksforschung, Band 9. Aschendorff Verlag, Münster 1992. XII, 457 Seiten
description: Bonner Jahrbücher, Bd. 193.1993(1994): Bonner Jahrbücher
Shape-preserving diffusion of a high-order mode
Creators: name: Yankelev, Dimity
name: Firstenberg, Ofer
name: Shuker, Moshe
name: Davidson, Nir
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The close relation between the processes of paraxial diffraction and coherent diffusion is reflected in the similarity between their shape-preserving solutions, notably the Gaussian modes. Differences between these solutions enter only for high-order modes. Here we experimentally study the behavior of shape-preserving high-order modes of coherent diffusion, known as 'elegant' modes, and contrast them with the non-shape-preserving evolution of the corresponding 'standard' modes of optical diffraction. Diffusion of the light field is obtained by mapping it onto the atomic coherence field of a diffusing vapor in a storage-of-light setup. The growth of the elegant mode fits well the theoretical expectations.
Inelastic electron and Raman scattering from the collective excitations in quantum wires: Zero magnetic field
Creators: name: Kushwaha, Manvir S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The nanofabrication technology has taught us that an $m$-dimensional confining potential imposed upon an $n$-dimensional electron gas paves the way to a quasi-($n-m$)-dimensional electron gas, with $m \le n$ and $1\le n, m \le 3$. This is the road to the (semiconducting) quasi-$n$ dimensional electron gas systems we have been happily traversing on now for almost three decades. Achieving quasi-one dimensional electron gas (Q-1DEG) [or quantum wire(s) for more practical purposes] led us to some mixed moments in this journey: while the reduced phase space for the scattering led us believe in the route to the faster electron devices, the proximity to the 1D systems left us in the dilemma of describing it as a Fermi liquid or as a Luttinger liquid. No one had ever suspected the potential of the former, but it took quite a while for some to convince the others on the latter. A realistic Q-1DEG system at the low temperatures is best describable as a Fermi liquid rather than as a Luttinger liquid. In the language of condensed matter physics, a critical scrutiny of Q-1DEG systems has provided us with a host of exotic (electronic, optical, and transport) phenomena revealing their unparallel behavior characteristics unseen in their higher or lower dimensional counterparts. Here, we embark on the systematic investigation of the inelastic electron scattering (IES) and of inelastic light scattering (ILS) from the elementary electronic excitations in quantum wires in the absence of an applied magnetic field. To that end, we begin with the Kubo's correlation functions to derive the generalized nonlocal, dynamic dielectric function, the inverse dielectric function, and the Dyson equation for the dynamic screened potential in the framework of Bohm-Pines' full and famous random-phase approximation...
description: arXiv admin note: text overlap with arXiv:1206.0096
Paroxyethira hamata Wells & Johanson 2012, new species
Creators: name: Wells, A.
name: Johanson, K. A.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydroptilidae
Paroxyethira
Paroxyethira hamata

description: Paroxyethira hamata, new species Figs 21, 22 Closely resembling P. dzumac, new species, but distinguished by the stout, straplike subapical process on the phallic sheath and its pair of setae at almost equi-distance from base, in contrast to more slender apical process of P. dzumac with widely separated pair of setae. Also, the left gonopod of P. hamata is stouter and bears a lateral brush of black setae. Male antennae each with 18 flagellomeres. Forewing length. Male 2.0 mm (n=2). Male genitalia (Figs 21, 22). Median process on abdominal sternite VIII elongate spatulate; length about 5x width at middle. Abdominal segment IX dorsally with distal margin widely and deeply concave, forming lateral lobes that in ventral view are slender, elongate. Gonopods dissimilar; right gonopod stout, tapered distally to blunt apex; brush of equally long, stout black setae extending along mesal margin; closely joined at base to shorter, more slender left gonopod with brush of setae distolaterally. Phallic apparatus slender, straight, elongate; constricted at about 1/6 length at which constriction short, threadlike titillator arising. Phallic sheath elongate, with tapered, curved straplike process subapically and pair of large setae at about 2/3rds its length. Female unknown. Holotype male: Province Sud, Mt. Dzumac, source stream of Ouinne River, downstream crosspoint to mountain track, 22°01.997'S, 166°28.486'E, 795 m, over about 30 m waterfall, 18.xi–4.xii.2003, Malaise trap, loc#031, leg. K.A. Johanson (MNHP). Paratype: Same data as for holotype— 1 male (SMNH). Etymology: Hamata, from Latin hamatus, meaning hooked, referring to the phallic sheath spine. Remarks: These curious specimens were collected with P. dzumac, and have male genitalia of the same general form, yet significantly different and thus are tentatively assigned to a separate species.
description: Published as part of Wells, A. & Johanson, K. A., 2012, Review of the New Caledonian species of Paroxyethira Mosely, 1924 (Trichoptera: Hydroptilidae), pp. 330-344 in Zootaxa 3478 on pages 338-339
The Earth as a living planet: human-type diseases in the earthquake preparation process
Creators: name: Contoyiannis, Y. F.
name: Potirakis, S. M.
name: Eftaxias, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The new field of complex systems supports the view that a number of systems arising from disciplines as diverse as physics, biology, engineering, and economics may have certain quantitative features that are intriguingly similar. The earth is a living planet where many complex systems run perfectly without stopping at all. The earthquake generation is a fundamental sign that the earth is a living planet. Recently, analyses have shown that human-brain-type disease appears during the earthquake generation process. Herein, we show that human-heart-type disease appears during the earthquake preparation of the earthquake process. The investigation is mainly attempted by means of critical phenomena, which have been proposed as the likely paradigm to explain the origins of both heart electric fluctuations and fracture induced electromagnetic fluctuations. We show that a time window of the damage evolution within the heterogeneous Earth's crust and the healthy heart's electrical action present the characteristic features of the critical point of a thermal second order phase transition. A dramatic breakdown of critical characteristics appears in the tail of the fracture process of heterogeneous system and the injury heart's electrical action. Analyses by means of Hurst exponent and wavelet decomposition further support the hypothesis that a dynamical analogy exists between the geological and biological systems under study.