cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Pseudomugilidae Kner 1867
Creators: name: Laan, Richard Van Der
name: Eschmeyer, William N.
name: Fricke, Ronald
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Atheriniformes
Pseudomugilidae

description: Family Pseudomugilidae Kner 1867
 Pseudomugilidae Kner 1867:275 [ref. 18426] (family) Pseudomugil [also Kner & Steindachner 1867:372 [ref. 2640]]
 Kiunginae Saeed, Ivantsoff & Allen 1989:779 [ref. 13533] (subfamily) Kiunga
 Scaturiginichthyinae Ivantsoff, Unmack, Saeed & Crowley 1991:278 [ref. 19164] (subfamily) Scaturiginichthys
description: Published as part of Laan, Richard Van Der, Eschmeyer, William N. & Fricke, Ronald, 2014, Family-group names of Recent fishes, pp. 1-230 in Zootaxa 3882 (2) on pages 72-73, DOI: 10.11646/zootaxa.3882.1.1, http://zenodo.org/record/7047777
Field-induced insulating states in a graphene superlattice
Creators: name: Pezzini, S.
name: Wiedmann, S.
name: Mishchenko, A.
name: Holwill, M.
name: Gorbachev, R.
name: Ghazaryan, D.
name: Novoselov, K. S.
name: Zeitler, U.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on high-field magnetotransport (B up to 35 T) on a gated superlattice based on single-layer graphene aligned on top of hexagonal boron nitride. The large-period moiré modulation (15 nm) enables us to access the Hofstadter spectrum in the vicinity of and above one flux quantum per superlattice unit cell (Phi/Phi_0 = 1 at B = 22 T). We thereby reveal, in addition to the spin-valley antiferromagnet at nu = 0, two insulating states developing in positive and negative effective magnetic fields from the main nu = 1 and nu = -2 quantum Hall states respectively. We investigate the field dependence of the energy gaps associated with these insulating states, which we quantify from the temperature-activated peak resistance. Referring to a simple model of local Landau quantization of third generation Dirac fermions arising at Phi/Phi_0 = 1, we describe the different microscopic origins of the insulating states and experimentally determine the energy-momentum dispersion of the emergent gapped Dirac quasi-particles.
Hyperolius mosaicus Perret 1959
Creators: name: Nečas, Tadeáš
name: Kielgast, Jos
name: Chinemerem, Ikechukwu G.
name: Rödel, Mark-Oliver
name: Dolinay, Matej
name: Gvoždík, Václav
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Amphibia
Anura
Hyperoliidae
Hyperolius
Hyperolius mosaicus

description: HYPEROLIUS MOS AICUS GROUP
Group II of Amiet (2012) [partim]; Central African forest species group of Dehling and Sinsch (2019); Group B of Ernst et al. (2021).
Contents (based on genetic data): H. endjami Amiet 1980; H. mosaicus Perret 1959 (Portik et al. 2019, Ernst et al. 2021).
Area of occurrence: South-western Cameroon to northern Gabon and Republic of the Congo.
Other potential members: SchiØtz (1999) found H. acutirostris Buchholz and Peters, 1875 from south-western Cameroon very similar and possibly related to H. endjami and H. mosaicus. Hyperolius stenodactylus may potentially be related to or conspecific with H. acutirostris (see Discussion).
description: Published as part of Nečas, Tadeáš, Kielgast, Jos, Chinemerem, Ikechukwu G., Rödel, Mark-Oliver, Dolinay, Matej & Gvoždík, Václav, 2024, The phylogenetic position of Hyperolius sankuruensis (Anura: Hyperoliidae) reveals biogeographical affinity between the central Congo and West Africa, and illuminates the taxonomy of Hyperolius concolor, pp. 1-19 in Zoological Journal of the Linnean Society 202 on page 15, DOI: 10.1093/zoolinnean/zlae046, http://zenodo.org/record/14764284
Ophidiinae Rafinesque 1810
Creators: name: Laan, Richard Van Der
name: Eschmeyer, William N.
name: Fricke, Ronald
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Ophidiiformes
Ophidiidae

description: Subfamily Ophidiinae Rafinesque 1810
 Ofidini Rafinesque 1810b:38 [ref. 3595] (ordine) Ophidion [as Ophidium; latinized to Ophididae by Bonaparte 1831:162, 184 [ref. 4978] (family); stem corrected to Ophidi- by Lowe 1843:92 [ref. 2832], confirmed by Günther 1862a:317, 370 [ref. 1969], by Gill 1872:3 [ref. 26254] and by Carus 1893:578 [ref. 17975]; considered valid with this authorship by Gill 1893b:136 [ref. 26255], by Goode & Bean 1896:345 [ref. 1848], by Nolf 1985:64 [ref. 32698], by Patterson 1993:636 [ref. 32940] and by Sheiko 2013:63 [ref. 32944] Article 11.7.2; family name sometimes seen as Ophidionidae]
Otophidioidei Garman 1899:390 [ref. 1540] (no family-group name)
 Lepophidiinae Robins 1961:218 [ref. 3785] (subfamily) Lepophidium
 Genypterinae Lea 1980 (subfamily) Genypterus [in unpublished dissertation: Systematics and zoogeography of cusk-eels of the family Ophidiidae, subfamily Ophidiinae, from the eastern Pacific Ocean, University of Miami, not available]
description: Published as part of Laan, Richard Van Der, Eschmeyer, William N. & Fricke, Ronald, 2014, Family-group names of Recent fishes, pp. 1-230 in Zootaxa 3882 (2) on pages 67-68, DOI: 10.11646/zootaxa.3882.1.1, http://zenodo.org/record/7047777
No Time Machine Construction in Open 2+1 Gravity with Timelike Total Energy Momentum
Creators: name: Tiglio, Manuel H.
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that in 2+1 dimensional gravity an open spacetime with timelike sources and total energy momentum cannot have a stable compactly generated Cauchy horizon. This constitutes a proof of a version of Kabat's conjecture and shows, in particular, that not only a Gott pair cannot be formed from processes such as the decay of a single cosmic string as has been shown by Carroll et al., but that, in a precise sense, a time machine cannot be constructed at all.
description: 7 pages. Several changes and 3 figures added. To appear in Phys. Rev. D
Growing lucerne in cool climates
Creators: name: Hargreaves, Paul
name: MacPherson. Lorna, L.
name: Flockhart, Jennifer
Publisher: name: Zenodo
Year: 2021
Subjects: legumes
lucerne
forage

description: This note supports strategies for effective lucerne (Medicago sativa L.) production in cool regions. While it is particularly based on experience gained in environments normally regarded as marginal for lucerne production, it is relevant to all lucerne-growing situations. The aim is maximisation of crop yield and forage quality.
Pyramodontinae Smith 1955
Creators: name: Laan, Richard Van Der
name: Eschmeyer, William N.
name: Fricke, Ronald
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Ophidiiformes
Carapidae

description: Subfamily Pyramodontinae Smith 1955
 Pyramodontidae Smith 1955e:546 [ref. 32503] (family) Pyramodon
description: Published as part of Laan, Richard Van Der, Eschmeyer, William N. & Fricke, Ronald, 2014, Family-group names of Recent fishes, pp. 1-230 in Zootaxa 3882 (2) on page 68, DOI: 10.11646/zootaxa.3882.1.1, http://zenodo.org/record/7047777
Hyperolius occidentalis SchiOtz 1967
Creators: name: Nečas, Tadeáš
name: Kielgast, Jos
name: Chinemerem, Ikechukwu G.
name: Rödel, Mark-Oliver
name: Dolinay, Matej
name: Gvoždík, Václav
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Amphibia
Anura
Hyperoliidae
Hyperolius
Hyperolius occidentalis

description: HYPEROLIUS OCCIDENTALIS GROUP
Group II of Amiet (2012) [partim]; Group G of Ernst et al. (2021).
Contents (based on genetic data): H. baumanni Ahl, 1931; H. chlorosteus (Boulenger 1915); H. laurenti SchiØtz, 1967; H. occidentalis SchiØtz, 1967; H. picturatus Peters, 1875; H. sylvaticus SchiØtz, 1967; H. torrentis SchiØtz, 1967 (Schick et al. 2010, Portik et al. 2019, Ernst et al. 2021; this study).
Area of occurrence: From eastern Sierra Leone in the West to south-western Cameroon in the East.
Other potential members: SchiØtz (1967) commented on the resemblance of colour patterns of H. viridigulosus SchiØtz, 1967 to H. chlorosteus and H. laurenti.
description: Published as part of Nečas, Tadeáš, Kielgast, Jos, Chinemerem, Ikechukwu G., Rödel, Mark-Oliver, Dolinay, Matej & Gvoždík, Václav, 2024, The phylogenetic position of Hyperolius sankuruensis (Anura: Hyperoliidae) reveals biogeographical affinity between the central Congo and West Africa, and illuminates the taxonomy of Hyperolius concolor, pp. 1-19 in Zoological Journal of the Linnean Society 202 on page 15, DOI: 10.1093/zoolinnean/zlae046, http://zenodo.org/record/14764284
Fachgesellschaften und Open Access in Deutschland – eine Analyse zur Herausgabe von Zeitschriften
Creators: name: Strecker, Dorothea
name: Pampel, Heinz
Publisher: name: Zenodo
Year: 2019
Subjects: Open Access
Fachgesellschaften

description: In der Debatte um die Open-Access-Transformation wird auch die Rolle wissenschaftlicher Fachgesellschaften diskutiert. Bisher gab es jedoch keine systematische Erhebung zum Einfluss von deutschen Fachgesellschaften auf das Publikationssystem. Dieser unbefriedigende Forschungsstand führte dazu, dass das Potenzial dieses wichtigen Akteurs bei der Open-Access-Transformation bisher weitgehende unbeachtet blieb und möglichen Barrieren auf Seiten der Fachgesellschaften bisher nicht adressiert wurden. Im Rahmen des BMBF-Projekts Options4OA werden die auch Publikations- und Open-Access-Aktivitäten deutscher Fachgesellschaften untersucht. Die Ergebnisse dieser Untersuchung wurden in einer Posterpräsentation auf den Open-Access-Tagen 2019 in Hannover erstmals vorgestellt. Eine Analyse des Publikationsverhaltens von 300 Fachgesellschaften zeigte, dass 39,33 % (n = 118) herausgeberisch tätig sind. Mehr als die Hälfte dieser Fachgesellschaften gibt eine Zeitschrift heraus. Von den 118 untersuchten Zeitschriften sind nur 6,59 % (n = 12) reine Open-Access-Zeitschriften, 56,04 % (n = 102) bieten eine hybrid-Option an. Die Mehrzahl der reinen Open-Access-Zeitschriften verlangt keine Publikationsgebühren, Zeitschriften mit hyprid-Option verlangen durchschnittlich 2424 Euro. In der Datensammlung OpenAPC-de sind 1348 Publikationen aus 9 Zeitschriften nachgewiesen. Ein Großteil der Publikationen wurde über reine Open-Access-Zeitschriften veröffentlicht, für die durchschnittlich 1244,50 Euro Publikationsgebühren gezahlt wurden. Das Vorhaben wurde vom Bundesministerium für Bildung und Forschung (BMBF) im Rahmen des Projektes „Options4OA” gefördert (Förderkennzeichen: 16OA034). Weitere Informationen unter: https://os.helmholtz.de/projekte/options4oa/
Hyperolius platyceps
Creators: name: Nečas, Tadeáš
name: Kielgast, Jos
name: Chinemerem, Ikechukwu G.
name: Rödel, Mark-Oliver
name: Dolinay, Matej
name: Gvoždík, Václav
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Amphibia
Anura
Hyperoliidae
Hyperolius
Hyperolius platyceps

description: HYPEROLIUS PL AT YCEPS GROUP
Group II of Amiet (2012); Group B of Ernst et al. (2021).
Contents (based on genetic data): H. cinereus Monard 1937; H. chelaensis Conradie, Branch, Measey and Tolley, 2012; H. platyceps (Boulenger 1900); H. raymondi Conradie, Branch and Tolley, 2013 (Conradie et al. 2012, 2013, Portik et al. 2019, Ernst et al. 2021).
Area of occurrence: Southern Cameroon in the North, south-western Angola in the South and western Democratic Republic of the Congo and north-eastern Angola in the East.
Other potential members: Hyperolius atrigularis, H. kibarae, and H. polli were mentioned as potentially related to H. platyceps (Badjedjea et al. 2022).
description: Published as part of Nečas, Tadeáš, Kielgast, Jos, Chinemerem, Ikechukwu G., Rödel, Mark-Oliver, Dolinay, Matej & Gvoždík, Václav, 2024, The phylogenetic position of Hyperolius sankuruensis (Anura: Hyperoliidae) reveals biogeographical affinity between the central Congo and West Africa, and illuminates the taxonomy of Hyperolius concolor, pp. 1-19 in Zoological Journal of the Linnean Society 202 on pages 15-16, DOI: 10.1093/zoolinnean/zlae046, http://zenodo.org/record/14764284
Fractional Super Lie Algebras and Groups
Creators: name: Ahmedov, H.
name: Yildiz, A.
name: Ucan, Y.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Representation Theory (math.RT)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Group Theory (math.GR)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: n^{th} root of a Lie algebra and its dual (that is fractional supergroup) based on the permutation group $S_n$ invariant forms are formulated in the Hopf algebra formalism. Detailed discussion of $S_3$-graided $sl(2)$ algebras is done.
description: 13 pages, detailed discussion of $S_3$-graided $sl(2)$ is added
Hyperolius spinigularis Stevens 1971
Creators: name: Nečas, Tadeáš
name: Kielgast, Jos
name: Chinemerem, Ikechukwu G.
name: Rödel, Mark-Oliver
name: Dolinay, Matej
name: Gvoždík, Václav
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Amphibia
Anura
Hyperoliidae
Hyperolius
Hyperolius spinigularis

description: HYPEROLIUS SPINIGULARIS GROUP
Group C of Ernst et al. (2021); Spiny-throated reed frog complex/group of Loader et al. (2015), Barratt et al. (2017) and Lawson et al. (2023); H. spinigularis complex/group of Lawson (2010) and Barratt et al. (2017).
Contents (based on genetic data): H.burgessi Loader, Lawson, Portik and Menegon, 2015; H. davenporti Loader, Lawson, Portik and Menegon, 2015; H. minutissimus SchiØtz, 1975; H. ruvuensis Barratt, Lawson and Loader, 2017; H. spinigularis Stevens 1971; H. tanneri SchiØtz 1982; H. ukaguruensis Lawson, Loader, Lyakurwa and Liedtke, 2023; H. ukwiva Loader, Lawson, Portik and Menegon, 2015 (Loader et al. 2015, Barratt et al. 2017, Portik et al. 2019, Ernst et al. 2021).
Area of occurrence: Mountains of central, eastern, and southern Tanzania (East and West Usambara Mts., Nguru Mts., Ukaguru Mts., Uluguru Mts., Rubeho Mts., Udzungwa Mts., Southern Highlands). Hyperolius spinigularis is known from southern Malawi (Mt. Mulanje) and adjacent regions of north-eastern Mozambique (Mt. Namuli). Hyperolius ruvuensis is known from the coastal forests of eastern Tanzania (Ruvu Forest).
description: Published as part of Nečas, Tadeáš, Kielgast, Jos, Chinemerem, Ikechukwu G., Rödel, Mark-Oliver, Dolinay, Matej & Gvoždík, Václav, 2024, The phylogenetic position of Hyperolius sankuruensis (Anura: Hyperoliidae) reveals biogeographical affinity between the central Congo and West Africa, and illuminates the taxonomy of Hyperolius concolor, pp. 1-19 in Zoological Journal of the Linnean Society 202 on page 16, DOI: 10.1093/zoolinnean/zlae046, http://zenodo.org/record/14764284
title: Tyrimnus leucographus (L.) Cass.
Creators: name: :None
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2018
Subjects: subject: Digitale Pflanzenbilder: Sammlung Dietmar Brandes
subject: 58

description: Pflanzensammlung Dietmar Brandes: Digitale Pflanzenbilder
A mechanism for the non-Fermi-liquid behavior in CeCu_{6-x}Au_x
Creators: name: Rosch, A.
name: Schröder, A.
name: Stockert, O.
name: Löhneysen, H. v.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We propose an explanation for the recently observed non-Fermi-liquid behavior of metallic alloys CeCu_{6-x}Au_x: near x=0.1, the specific heat c is proportional to T \ln (T_0/T) and the resistivity increases linearly with temperature T over a wide range of T. These features follow from a model in which three-dimensional conduction electrons are coupled to two-dimensional critical ferromagnetic fluctuations near the quantum critical point, x_{c}=0.1. This picture is motivated by the neutron scattering data in the ordered phase (x=0.2) and is consistent with the observed phase diagram.
description: 4 pages, LaTeX, 3 figures
Gadidae Rafinesque 1810
Creators: name: Laan, Richard Van Der
name: Eschmeyer, William N.
name: Fricke, Ronald
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Gadiformes
Gadidae

description: Family Gadidae Rafinesque 1810
 Gadini Rafinesque 1810b:11 [ref. 3595] (ordine) Gadus [latinized to Gadinia by Rafinesque 1815:82 [ref. 3584] (family); latinized to Gadidae by Bonaparte 1831:183 [ref. 4978] (family); considered valid with this authorship by Gill 1893b:137 [ref. 26255], by Nolf 1985:59 [ref. 32698], by Patterson 1993:637 [ref. 32940] and by Sheiko 2013:62 [ref. 32944] Article 11.7.2]
 Orthosomata Goldfuss 1820:VII, 54 [ref. 1829] (family)? Gadus [no stem of the type genus, not available, Article 11.7.1.1]
 Ranicepini Bonaparte 1835:[14] [ref. 32242] (subfamily) Raniceps [genus inferred from the stem, Article 11.7.1.1; stem corrected to Ranicipit- by Bonaparte 1850b [ref. 32551]; stem changed to Ranicepit- by Gill 1872:3 [ref. 26254], confirmed by Gill 1884d:173 [ref. 1725]; stem Ranicipit- confirmed by Howes & Crimmen 1990:162 [ref. 15692] and by Nelson 2006:243 [ref. 32486]]
 Eleginini Berg 1940:285, 457 [ref. 5049] (subfamily) Eleginus [preoccupied by Elegininae Gill 1862 in fishes, invalid, Article 55.3; Dunn 1989:232, 233, 234 [ref. 16039] used Eleginae]
 Merlangiidae Whitley 1968:39 [ref. 22198] Merlangius [name only, published after 1960, not available, Article 13.1.1]
 Gadiculinae Dunn 1989:232, 234 [ref. 16039] (subfamily) Gadiculus
 Microgadinae Dunn 1989:232, 233, 234 [ref. 16039] (subfamily) Microgadus
 Trisopterini Endo 2002:112 [ref. 26606] (tribe) Trisopterus
description: Published as part of Laan, Richard Van Der, Eschmeyer, William N. & Fricke, Ronald, 2014, Family-group names of Recent fishes, pp. 1-230 in Zootaxa 3882 (2) on pages 66-67, DOI: 10.11646/zootaxa.3882.1.1, http://zenodo.org/record/7047777
Search for environmental effects on the KLL Auger spectrum of rubidium generated in radioactive decay
Creators: name: Inoyatov, A. Kh.
name: Perevoshchikov, L. L.
name: Kovalík, A.
name: Filosofov, D. V.
name: Yushkevich, Yu. V.
name: Ryšavý, M.
name: Lee, B. Q.
name: Kibédi, T.
name: Stuchbery, A. E.
name: Zhdanov, V. S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The KLL Auger spectrum of rubidium following the electron capture decay of $^{83}$Sr and $^{85}$Sr isotopes was experimentally studied in detail for the first time using one $^{83}$Sr source and three $^{85}$Sr sources in different host matrices. Energies, relative intensities, and natural widths of all the nine well-resolved basic spectrum components were determined and compared with both predictions and experimental data for krypton. Results of our multiconfiguration Dirac-Fock calculations demonstrated an influence of the "atomic structure effect" on absolute energies of the KLL transitions following the creation of initial vacancies by the electron capture decay. Environmental effects on the KLL Auger spectrum were distinctly observed only for the absolute transition energies.
description: arXiv admin note: substantial text overlap with arXiv:1810.00102
Hyperolius obstetricans Ahl 1931
Creators: name: Nečas, Tadeáš
name: Kielgast, Jos
name: Chinemerem, Ikechukwu G.
name: Rödel, Mark-Oliver
name: Dolinay, Matej
name: Gvoždík, Václav
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Amphibia
Anura
Hyperoliidae
Hyperolius
Hyperolius obstetricans

description: H Y P E ROL I U S OB STETR IC A N S G RO U P (SU B - GENUS ALE XTEROON PERRET, 1988)
Group E of Ernst et al. (2021).
Contents (based on genetic data): Hyperolius hypsiphonus (Amiet 2000); H. jynx (Amiet 2000); H. obstetricans Ahl, 1931 (Ernst et al. 2021).
Area of occurrence: From southern and southwestern Cameroon in the North to northwestern Angola in the South (Channing and Rödel 2019, Ernst et al. 2021).
description: Published as part of Nečas, Tadeáš, Kielgast, Jos, Chinemerem, Ikechukwu G., Rödel, Mark-Oliver, Dolinay, Matej & Gvoždík, Václav, 2024, The phylogenetic position of Hyperolius sankuruensis (Anura: Hyperoliidae) reveals biogeographical affinity between the central Congo and West Africa, and illuminates the taxonomy of Hyperolius concolor, pp. 1-19 in Zoological Journal of the Linnean Society 202 on page 16, DOI: 10.1093/zoolinnean/zlae046, http://zenodo.org/record/14764284
Evaluation of the low-lying energy levels of two- and three-electron configurations for multi-charged ions
Creators: name: Andreev, O. Yu.
name: Labzowsky, L.
name: Plunien, G.
name: Soff, G.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Accurate QED evaluations of the one- and two-photon interelectron interaction for low lying two- and three-electron configurations for ions with nuclear charge numbers $60\le Z \le 93$ are performed. The three-photon interaction is also partly taken into account. The Coulomb gauge is employed. The results are compared with available experimental data and with different calculations. A detailed investigation of the behaviour of the energy levels of the configurations $1s_{1/2}2s_{1/2} {}^1 S_0$, $1s_{1/2}2p_{1/2} {}^3 P_0$ near the crossing points Z=64 and Z=92 is carried out. The crossing points are important for the future experimental search for parity nonconserving (PNC) effects in highly charged ions.
On Perverse Equivalences and Rationality
Creators: name: Chuang, Joseph
name: Kessar, Radha
Publisher: name: arXiv
Year: 2018
Subjects: subject: Representation Theory (math.RT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20C20, 16G99

description: We show that perverse equivalences between module categories of finite-dimensional algebras preserve rationality. As an application, we give a connection between some famous conjectures from the modular representation theory of finite groups, namely Broué's Abelian Defect Group conjecture and Donovan's Finiteness conjectures.
Atherinopsinae Fitzinger 1873
Creators: name: Laan, Richard Van Der
name: Eschmeyer, William N.
name: Fricke, Ronald
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Atheriniformes
Atherinidae

description: Subfamily Atherinopsinae Fitzinger 1873
 Atherinopses Fitzinger 1873:35 [ref. 31883] (family) Atherinopsis
 Sorgentininae Pianta de Risso & Risso 1953:12 [ref. 5938] (subfamily) Sorgentinia [correct stem is Sorgentini-]
 Basilichthyini White 1985:17 [ref. 13551] (tribe) Basilichthys
description: Published as part of Laan, Richard Van Der, Eschmeyer, William N. & Fricke, Ronald, 2014, Family-group names of Recent fishes, pp. 1-230 in Zootaxa 3882 (2) on page 73, DOI: 10.11646/zootaxa.3882.1.1, http://zenodo.org/record/7047777
Design and evaluation of agent implementation architectures for efficient deployment of agent technologies
Creators: name: Gujral, Nishit
Publisher: name: The University of Texas at Austin
Year: 2004
Subjects: Multi-agent systems
Implementation architecture

description: The use of multi-agent systems to model and control complex domains has increased. This research offers a method and tool for the creation and evaluation of implementation-specific multi-agent system architectures. The Implementation Architecture (IA) model specifies the constituent technologies based on adherence to infrastructure constraints - ability of technologies to integrate and interoperate with one another as well as their ability to deploy at specific sites. Understanding and modeling agent technologies is essential for the design process. The agent implementation architecture is constructed based on an iterative evaluation process determining if the requirements of the agent technologies are satisfied by the site at which the architecture will be deployed. The proposed Implementation Architecture Creation and Evaluation Toolkit (ICET) help the designer in not only the implementation architecting process but also helps in the efficient planning for deploying of agent technologies.
Galeichthyinae Acero
Creators: name: Laan, Richard Van Der
name: Eschmeyer, William N.
name: Fricke, Ronald
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Siluriformes
Ariidae

description: Subfamily Galeichthyinae Acero & Betancur-R. 2007
 Galeichthyinae Acero & Betancur-R. 2007:139 [ref. 29200] (subfamily) Galeichthys
description: Published as part of Laan, Richard Van Der, Eschmeyer, William N. & Fricke, Ronald, 2014, Family-group names of Recent fishes, pp. 1-230 in Zootaxa 3882 (2) on page 52, DOI: 10.11646/zootaxa.3882.1.1, http://zenodo.org/record/7047777
Telmatherinidae Munro 1958
Creators: name: Laan, Richard Van Der
name: Eschmeyer, William N.
name: Fricke, Ronald
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Atheriniformes
Telmatherinidae

description: Family Telmatherinidae Munro 1958
 Telmatherinidae Murro 1958:98 [ref. 20253] (family) Telmatherina [name only, but used as valid by Munro 1967:177 [ref. 6844] and by Nelson 1994:262 [ref. 26204] Article 13.2.1]
description: Published as part of Laan, Richard Van Der, Eschmeyer, William N. & Fricke, Ronald, 2014, Family-group names of Recent fishes, pp. 1-230 in Zootaxa 3882 (2) on page 73, DOI: 10.11646/zootaxa.3882.1.1, http://zenodo.org/record/7047777
Vacuum fluctuations for spherical gravitational impulsive waves
Creators: name: Hortaçsu, M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose a method for calculating vacuum fluctuations on the background of a spherical impulsive gravitational wave which results in a finite expression for the vacuum expectation value of the stress-energy tensor. The method is based on first including a cosmological constant as an auxiliary constant. We show that the result for the vacuum expectation value of the stress-energy tensor in second-order perturbation theory is finite if both the cosmological constant and the infrared parameter tend to zero at the same rate.
description: Class. Quantum Grav. 13(1996) 2683-2691
The KLM+KLN Auger electron spectrum of rubidium in different matrices
Creators: name: Inoyatov, A. Kh.
name: Kovalík, A.
name: Perevoshchikov, L. L.
name: Filosofov, D. V.
name: Vénos, D.
name: Lee, B. Q.
name: Ekman, J.
name: Baimukhanova, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The KLM+KLN Auger electron spectrum of rubidium (Z=37) emitted in the electron capture decay of radioactive $^{83}$Sr in a polycrystalline platinum matrix and also $^{85}$Sr in polycrystalline platinum and carbon matrices as well as in an evaporated layer onto a carbon backing was experimentally studied in detail for the first time using a combined electrostatic electron spectrometer. Energies, relative intensities, and natural widths of fifteen basic spectrum components were determined and compared with both theoretical predictions and experimental data for krypton (Z=36). Relative spectrum line energies obtained from the semi-empirical calculations in intermediate coupling scheme were found to agree within 3$σ$ with the measured values while disagreement with experiment exceeding 3$σ$ was often observed for values obtained from our multiconfiguration Dirac-Hartree-Fock calculations. The absolute energy of the dominant spectrum component given by the semi-empirical approach agrees within 1$σ$ with the measured value. Shifts of + (0.2$\pm$0.2) and - (1.9$\pm$0.2) eV were measured for the dominant KLM spectrum components between the $^{85}$Sr sources prepared by vacuum evaporation on and implanted into the carbon foil, respectively, relative to $^{85}$Sr implanted into the platinum foil. A value of (713$\pm$2) eV was determined for the energy difference of the dominant components of the KLM+KLN Auger electron spectra of rubidium and krypton generated in the polycrystalline platinum matrix. From the detailed analysis of the measured data and available theoretical results, the general conclusion can be drawn that the proper description of the KLM+KLN Auger electron spectrum for Z around 37 should still be based on intermediate coupling of angular momenta taking into account relativistic effects.
Effect of structure and composition on the electronic excitation induced amorphization of La$_2$Ti$_{2-x}$Zr$_x$O$_7$ ceramics
Creators: name: Sassi, Michel
name: Kaspar, Tiffany
name: Rosso, Kevin M.
name: Spurgeon, Steven R.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Understanding the response of ceramics operating in extreme environments is of interest for a variety of applications. Ab initio molecular dynamic simulations have been used to investigate the effect of structure and $B$-site (=Ti, Zr) cation composition of lanthanum-based oxides (La$_2$$B_2$O$_7$) on electronic-excitation-induced amorphization. We find that the amorphous transition in monoclinic layered perovskite La$_2$Ti$_2$O$_7$ occurs for a lower degree of electronic excitation than for cubic pyrochlore La$_2$Zr$_2$O$_7$. While in each case the formation of O$_2$-like molecules drives the structure to an amorphous state, an analysis of the polyhedral connection network reveals that the rotation of TiO$_6$ octahedra in the monoclinic phase can promote such molecule formation, while such octahedral rotation is not possible in the cubic phase. However, once the symmetry of the cubic structure is broken by substituting Ti for Zr, it becomes less resistant to amorphization. A compound made of 50% Ti and 50% Zr (La$_2$TiZrO$_7$) is found to be more resistant in the monoclinic than in the cubic phase, which may be related to the lower bandgap of the cubic phase. These results illustrate the complex interplay of structure and composition that give rise to the radiation resistance of these important functional materials.
description: 19 pages, 5 figures
Some remarks on Uq(sl(2,R)) at root of unity
Creators: name: Stovicek, P.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B37;81R50

description: We discuss a modification of Uq(sl(2,R)) and a class of its irreducible representations when q is a root of unity.
The influence of post-spacing density of DEMs derived from LIDAR on flood modeling
Creators: name: Gueudet, Pierre
Publisher: name: The University of Texas at Austin
Year: 2004
Subjects: Digital mapping
Texas floodplains
Hydraulic models

description: The primary objective of the research is to determine the optimal post-spacing for LIDAR-derived digital elevation models (DEMs) that is required to achieve different levels of accuracy in the prediction of flood risk using hydraulic models. For the study, high spatial resolution LIDAR data were collected by the University of Texas Airborne Laser Terrain Mapping System and decimated to generate a variety of DEMs with different resolutions for test and evaluation. The data were entered as input to FEMA-approved hydraulic models at varying resolutions to determine the sensitivity of the models to the changes in the densities of the LIDAR ground elevation points. Data were collected in Brownsville, Texas, in the area of the North Main Drain. A flood model was developed using HEC-RAS to delineate the 2-year, 5-year and 25-year floodplains of this drain. For each of the floodplains, 70 simulations were run using different densities of LIDAR-derived ground elevation points. These varying datasets density were also used to delineate watersheds. The work flow sequence needed to produce the flood maps was automated using the ESRI ArcGIS 9 Model Builder. Concerning floodplain delineation, results reveal that below a certain density (5 ground points per 100m² which corresponds to a 4.34 meter post-spacing), the LIDAR data become problematical for use in the creation of accurate flood hazard maps. At lower ground point densities, flow obstructions appear on the 3D cross-sections derived from LIDAR, and the inundation polygons expand to unrealistic proportions. With densities greater than 5 ground points per 100m², the influence of increasing LIDAR point density is weak, and the accuracy of the floodplain resulting from a simulation depends upon the initial conditions of the model run. Concerning watershed delineation, no trend was observed as the density of LIDAR points decreases. This result could be explained by the fact that the area of study is extremely flat.
Bathysauroididae Sato & Nakabo 2002
Creators: name: Laan, Richard Van Der
name: Eschmeyer, William N.
name: Fricke, Ronald
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Aulopiformes
Bathysauroididae

description: Family Bathysauroididae Sato & Nakabo 2002
 Bathysauroididae Sato & Nakabo 2002:44 [ref. 25953] (family) Bathysauroides
description: Published as part of Laan, Richard Van Der, Eschmeyer, William N. & Fricke, Ronald, 2014, Family-group names of Recent fishes, pp. 1-230 in Zootaxa 3882 (2) on page 62, DOI: 10.11646/zootaxa.3882.1.1, http://zenodo.org/record/7047777
The General Solution of the Complex Monge-Ampère Equation in a space of arbitrary dimension
Creators: name: Fairlie, D. B.
name: Leznov, A. N.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: A general solution to the Complex Monge-Ampère equation in a space of arbitrary dimensions is constructed.
description: 13 pages, latex, no figures
Scopelarchidae Alcock 1896
Creators: name: Laan, Richard Van Der
name: Eschmeyer, William N.
name: Fricke, Ronald
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Aulopiformes
Scopelarchidae

description: Family Scopelarchidae Alcock 1896
 Scopelarchina Alcock 1896:306 [ref. 91] (group) Scopelarchus
 Benthalbellinae Rofen 1966:573 [ref. 19801] (subfamily) Benthalbella
description: Published as part of Laan, Richard Van Der, Eschmeyer, William N. & Fricke, Ronald, 2014, Family-group names of Recent fishes, pp. 1-230 in Zootaxa 3882 (2) on page 62, DOI: 10.11646/zootaxa.3882.1.1, http://zenodo.org/record/7047777
Role of Metastable States in Phase Ordering Dynamics
Creators: name: Evans, R. M. L.
name: Poon, W. C. K.
name: Cates, M. E.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We show that the rate of separation of two phases of different densities (e.g. gas and solid) can be radically altered by the presence of a metastable intermediate phase (e.g. liquid). Within a Cahn-Hilliard theory we study the growth in one dimension of a solid droplet from a supersaturated gas. A moving interface between solid and gas phases (say) can, for sufficient (transient) supersaturation, unbind into two interfaces separated by a slab of metastable liquid phase. We investigate the criteria for unbinding, and show that it may strongly impede the growth of the solid phase.
description: 4 pages, Latex, Revtex, epsf. Updated two references
Negative Thermal Expansion of ZrW2O8 and HfW2O8: Contradiction to a Thermodynamic Relation
Creators: name: Stepanov, I. A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Physics (physics.gen-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: It has been shown that the dependence of negative thermal expansion coefficient of ZrW2O8 and HfW2O8 on the temperature found by many authors contradicts to an important thermodynamic relation.
description: 10 pages, 4 figures. E-mail me istepanov@email.com
A method for calculating the imaginary part of the Hadamard Elementary function $G^{(1)}$ in static, spherically symmetric spacetimes
Creators: name: Herman, Rhett
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Whenever real particle production occurs in quantum field theory, the imaginary part of the Hadamard Elementary function $G^{(1)}$ is non-vanishing. A method is presented whereby the imaginary part of $G^{(1)}$ may be calculated for a charged scalar field in a static spherically symmetric spacetime with arbitrary curvature coupling and a classical electromagnetic field $A^μ$. The calculations are performed in Euclidean space where the Hadamard Elementary function and the Euclidean Green function are related by $(1/2)G^{(1)}=G_{E}$. This method uses a $4^{th}$ order WKB approximation for the Euclideanized mode functions for the quantum field. The mode sums and integrals that appear in the vacuum expectation values may be evaluated analytically by taking the large mass limit of the quantum field. This results in an asymptotic expansion for $G^{(1)}$ in inverse powers of the mass $m$ of the quantum field. Renormalization is achieved by subtracting off the terms in the expansion proportional to nonnegative powers of $m$, leaving a finite remainder known as the ``DeWitt-Schwinger approximation.'' The DeWitt-Schwinger approximation for $G^{(1)}$ presented here has terms proportional to both $m^{-1}$ and $m^{-2}$. The term proportional to $m^{-2}$ will be shown to be identical to the expression obtained from the $m^{-2}$ term in the generalized DeWitt-Schwinger point-splitting expansion for $G^{(1)}$. The new information obtained with the present method is the DeWitt-Schwinger approximation for the imaginary part of $G^{(1)}$, which is proportional to $m^{-1}$ in the DeWitt-Schwinger approximation for $G^{(1)}$ derived in this paper.
description: 27 pages, ReVTeX
Dentatherinidae Patten & Ivantsoff 1983
Creators: name: Laan, Richard Van Der
name: Eschmeyer, William N.
name: Fricke, Ronald
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Atheriniformes
Dentatherinidae

description: Family Dentatherinidae Patten & Ivantsoff 1983
 Dentatherininae Patten & Ivantsoff 1983:331 [ref. 5424] (subfamily) Dentatherina
description: Published as part of Laan, Richard Van Der, Eschmeyer, William N. & Fricke, Ronald, 2014, Family-group names of Recent fishes, pp. 1-230 in Zootaxa 3882 (2) on page 73, DOI: 10.11646/zootaxa.3882.1.1, http://zenodo.org/record/7047777
Ruled special Lagrangian 3-folds in C^3
Creators: name: Joyce, Dominic
Publisher: name: arXiv
Year: 2000
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: This is the fourth in a series of papers math.DG/0008021, math.DG/0008155, math.DG/0010036 constructing explicit examples of special Lagrangian submanifolds (SL m-folds) in C^m. A submanifold of C^m is ruled if it is fibred by a family of real straight lines in C^m. This paper studies ruled special Lagrangian 3-folds in C^3, giving both general theory and families of examples. Our results are related to previous work of Harvey and Lawson, Borisenko and Bryant. An important class of ruled SL 3-folds is the special Lagrangian cones in C^3. Each ruled SL 3-fold is asymptotic to a unique SL cone. We study the family of ruled SL 3-folds N asymptotic to a fixed SL cone N_0. We find that this depends on solving a linear equation, so that the family of such N has the structure of a vector space. We also show that the intersection Sigma of N_0 with the unit sphere in C^3 is a Riemann surface, and construct a ruled SL 3-fold N asymptotic to N_0 for each holomorphic vector field w on Sigma. As corollaries of this we write down two large families of explicit SL 3-folds depending on a holomorphic function on C, which include many new examples of singularities of SL 3-folds. We also show that each SL T^2 cone N_0 can be extended to a 2-parameter family of ruled SL 3-folds asymptotic to N_0, and diffeomorphic to T^2 x R.
description: 24 pages, LaTeX, uses packages amsmath and amssymb
Glauber Dynamics and Ageing
Creators: name: Mélin, R.
name: Butaud, P.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The Glauber dynamics of various models (REM-like trap models, Brownian motion, BM model, Ising chain and SK model) is analyzed in relation with the existence of ageing. From a finite size Glauber matrix, we calculate a time $τ_w(N)$ after which the system has relaxed to the equilibrium state. The case of metastability is also discussed. If the only non zero overlaps between pure states are only self-overlaps (REM-like trap models, BM model), the existence or absence of ageing depends only on the behavior of the density of eigenvalues for small eigenvalues. We have carried out a detailed numerical and analytical analysis of the density of eigenvalues of the REM-like trap models. In this case, we show that the behavior of the density of eigenvalues for typical trap realizations is related to the spectral dimension of the equivalent random walk model.
description: 22 pages, 6 figures, accepted in Jour. Phys I (France)
Profundulidae Hoedeman & Bronner 1951
Creators: name: Laan, Richard Van Der
name: Eschmeyer, William N.
name: Fricke, Ronald
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Cyprinodontiformes
Profundulidae

description: Family Profundulidae Hoedeman & Bronner 1951
 Profundulidi Hoedeman & Bronner 1951:7, 9 [ref. 32174] (tribe) Profundulus
description: Published as part of Laan, Richard Van Der, Eschmeyer, William N. & Fricke, Ronald, 2014, Family-group names of Recent fishes, pp. 1-230 in Zootaxa 3882 (2) on page 74, DOI: 10.11646/zootaxa.3882.1.1, http://zenodo.org/record/7047777
Chaos analyses in both phases of QED and QCD
Creators: name: Biro, Tamas S.
name: Hoermann, Natascha
name: Markum, Harald
name: Pullirsch, Rainer
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze the leading Lyapunov exponents of U(1) and SU(2) gauge field configurations on the lattice which are initialized by quantum Monte Carlo simulations. We find that configurations in the strong coupling phase are substantially more chaotic than in deconfinement.
description: Talk presented at QCD'99, 5 pages, 11 plots
INGLIZ VA O'ZBEK TILLARIDA ZOONIMLARNING LINGVOKULTUROLOGIK AHAMIYATI
Creators: name: Lutfilloyeva, Gulsevar
Publisher: name: Zenodo
Year: 2024

description: Inson qalbining ko’zgusi bo’lmish til va xulq-atvor hamda tarbiyaning qalbda aks ettirilgan shakli bo’lmish madaniyatning integratsiyalashuvi hisoblangan lingvomadaniyatshunoslik- bu kishilik jamiyatining ishlab chiqarish, ijtimoiy va ma’naviy-ma’rifiy hayotida qo’lga kiritgan yutuqlari majmui demakdir. Shu xususda, ushbu maqola zoonimlar, ularning inson hayotida tutgan o’rni ahamiyati va ularning u yoki bu tilde madaniyatlashuvi ya’ni  zoonimlarning linvokulturologik ahamiyati haqida qimmatli va kerakli ma’lumotlar beradi.
Collisional N-Body Dynamics Coupled to Self-Gravitating Magnetohydrodynamics Reveals Dynamical Binary Formation
Creators: name: Wall, Joshua E.
name: McMillan, Stephen L. W.
name: Mac Low, Mordecai-Mark
name: Klessen, Ralf S.
name: Zwart, Simon Portegies
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We describe a star cluster formation model that includes individual star formation from self-gravitating, magnetized gas, coupled to collisional stellar dynamics. The model uses the Astrophysical Multi-purpose Software Environment (AMUSE) to integrate an adaptive-mesh magnetohydrodynamics code (FLASH) with a fourth order Hermite N-body code (ph4), a stellar evolution code (SeBa), and a method for resolving binary evolution (multiples). This combination yields unique star formation simulations that allow us to study binaries formed dynamically from interactions with both other stars and dense, magnetized gas subject to stellar feedback during the birth and early evolution of stellar clusters. We find that for massive stars, our simulations are consistent with the observed dynamical binary fractions and mass ratios. However, our binary fraction drops well below observed values for lower mass stars, presumably due to unincluded binary formation during initial star formation. Further, we observe a build up of binaries near the hard-soft boundary that may be an important mechanism driving early cluster contraction.
description: 14 pages, 12 figures. Submitted to ApJ
Coexistence Curve Singularities at Critical End Points
Creators: name: Wilding, Nigel B.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We report an extensive Monte Carlo study of critical end point behaviour in a symmetrical binary fluid mixture. On the basis of general scaling arguments, singular behaviour is predicted in the diameter of the liquid-gas coexistence curve as the critical end point is approached. The simulation results show clear evidence for this singularity, as well as confirming a previously predicted singularity in the coexistence chemical potential. Both singularities should be detectable experimentally.
description: 9 pages Revtex, 3 figures. To appear in Phys. Rev. Lett
Darboux Transformation for Supersymmetric KP Hierarchies
Creators: name: Liu, Q. P.
name: Manas, Manuel
Publisher: name: arXiv
Year: 1999
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct Darboux transformations for the super-symmetric KP hierarchies of Manin--Radul and Jacobian types. We also consider the binary Darboux transformation for the hierarchies. The iterations of both type of Darboux transformations are briefly discussed.
description: 14 pages, LaTeX2e with amsmath,amssymb,amsthm and geometry packages. In this new version we consider both the Manin-Radul and the Jacobian SKP hierachies and we show how the elementary Darboux transformation composed with a reversion of signs in the fermionic times constitute a proper transformation of these hierarchies
title: Bewegung handhaben oder: Planung als Problem?: Eine Einladung das Denken der Stadtplanung am Beispiel infrastruktureller Praxis im peri-urbanen Raum von Mexiko-Stadt zu hinterfragen
Creators: name: Wissel, Christian
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2018
Subjects: subject: 72

description: Stadtplanung steht auf dem Prüfstand und das wieder einmal und zu Recht. Vielerorts wird der Planung unserer Städte auf den Leib gerückt und die Perspektiven dieser Kritik – zum Beispiel aus der historischen Metropolenforschung, der Kulturanthropologie oder den Science and
Technology Studies (STS)[3] – sind erfrischend vielseitig. Denn debattiert wird nicht nur was Stadtplanung (falsch), sondern grundsätzlich wie Planung Stadt macht.
Long range correlations in quantum gravity
Creators: name: Neville, Donald E.
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Smolin has pointed out that the spin network formulation of quantum gravity will not necessarily possess the long range correlations needed for a proper classical limit; typically, the action of the scalar constraint is too local. Thiemann's length operator is used to argue for a further restriction on the action of the scalar constraint: it should not introduce new edges of color unity into a spin network, but should rather change preexisting edges by $\pm$ one unit of color. Smolin has proposed a specific ansatz for a correlated scalar constraint. This ansatz does not introduce color unity edges, but the [scalar, scalar] commutator is shown to be anomalous. In general, it will be hard to avoid anomalies, once correlation is introduced into the constraint; but it is argued that the scalar constraint may not need to be anomaly-free when acting on the kinematic basis.
description: 29 pages; LaTex; 9 figures in .eps files