cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Meristotheca spinella Nunez-Resendiz, Dreckmann & Senties 2019, sp. nov.
Creators: name: Núñez-Resendiz, María Luisa
name: Dreckmann, Kurt M.
name: Sentíes, Abel
name: León-Tejera, Hilda P.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Plantae
Rhodophyta
Florideophyceae
Gigartinales
Solieriaceae
Meristotheca
Meristotheca spinella

description: Meristotheca spinella Núñez-Resendiz, Dreckmann & Sentíes, sp. nov.
(Figs 2, 3)
HOLOTYPE. — UAMIZ-1332 (Fig. 2A), tetrasporophyte, collected at Bahia Tortuga (19.2135°N, 90.4235°W), Campeche (Mexico), on 06.VI.2015, collected by M. L. Núñez & K. M. Dreckmann. GenBank accession number MK135825.
ISOTYPE. — UAMIZ-1331, tetrasporophyte, collected at Bahia Tortuga, Campeche (Mexico), on 06. VI.2015, collected by M. L. Núñez & K. M. Dreckmann. GenBank accession number MK 135823.
PARATYPES. — Listed in Table 1.
ETYMOLOGY. — The specific epithet spinella refers to the numerous short branches or spine-shaped proliferations that completely cover the margins of the main axes and branches.
DIAGNOSIS. — Thalli 20−35 cm high, terete, dark red in color, attached by a discoid holdfast, branching dichotomously, alternately, opposite or laterally, primary axes 1250-1500 µm in diameter; branches 550-750 µm in diameter, covered with small spine-shaped branchlets. Narrow medullary filaments with numerous single-celled rhizoids, 2.5-4 µm in diameter. Inner cortex with five to six layers of cells, 25-45 µm × 20−30 µm in diameter, with small connective filaments. Outer cortex with four to five layers of cells, 10-45 µm long and 4-14 µm in diameter. Tetrasporangia claviform, 20-30 µm long and 4-7 µm in diameter, basally anchored by an elongated supporting cell that can form 3-celled cortical filaments, 7-10 µm long and 4-6 µm in diameter. Cystocarps ellipsoidal, 600-650 µm long and 320-430 µm in width.
ECOLOGY. — Populations of Meristotheca spinella Núñez-Resendiz, Dreckmann & Sentíes, sp. nov. were found throughout the year, with greater abundance during the spring (tetrasporophytic state) and summer (vegetative state). They were growing in sandy environments of turbid waters, with little exposure to light, attached to rocky substrata (1-1.5 m deep). They were part of the algal canopy of the submerged algal community together with different species of large red algae, such as Alsidium seaforthii (Turner) J.Agardh, Crassiphycus corneus (J.Agardh) Gurgel, J.N.Norris & Fredericq, C. usneoides (C.Agardh) Gurgel, J.N.Norris & Fredericq, Eucheumatopsis isiformis, Meristotheca cylindrica, and Tepoztequiella rhizoidea, which were as abundant as M. spinella Núñez-Resendiz, Dreckmann & Sentíes, sp. nov. It was also a conspicuous component of the algal drift at the end of summer.
description: Published as part of Núñez-Resendiz, María Luisa, Dreckmann, Kurt M., Sentíes, Abel & León-Tejera, Hilda P., 2019, Meristotheca spinella Núñez-Resendiz, Dreckmann & Sentíes, sp. nov. (Solieriaceae, Rhodophyta) a new cylindrical species from the southwestern Gulf of Mexico, pp. 63-72 in Cryptogamie, Algologie 20 (6) on pages 65-67, DOI: 10.5252/cryptogamie-algologie2019v40a6, http://zenodo.org/record/7819016
La scène alimentaire dans La Scouine et Un homme et son péché
Creators: name: Sun, Lang
Publisher: name: University of British Columbia
Year: 2010

description: Notre recherche débouche sur une analyse thématique de la scène alimentaire dans deux romans québécois: La Scouine d'Albert Laberge et Un homme et son péché de Claude-Henri Grignon. Vers la fin, nous étudions rapidement Trente arpents de Ringuet. Les trois romans ont été écrits à l'époque où l'idéologie traditionnelle terrienne restait le discours social dominant, alors que la terre était généralement perçue comme une mère nourricière avec ses attributs de générosité et de fécondité, et sa valeur de fondement de la survie nationale lorsque fleurit le roman régionaliste. Notre approche emprunte son modèle de lecture à la théorie sémiotique de la Logigue de Port-Royal telle que comprise par Louis Marin dans La Parole mangée. Ce qui nous intéresse plus particulièrement dans cette étude, c'est la richesse sémiotique que la pensée théologique investit dans la formule rituelle eucharistique par l'énoncé consécratoire <>. Louis Marin a su découvrir la dimension sémiotique du dogme catholique en recourant au concept de <> du signe et en décrivant un processus selon lequel chaque signe "enferme deux idées, l'une de la chose qui représente, l'autre de la chose représentée et sa nature consiste à exciter la seconde par la première". Dans ce sens-là, le signe est à la fois <> et <> et le fonctionnement spécifique de son insertion dans un système signifiant où gravitent les formes esthétiques et les discours sociaux, offre des pistes intéressantes à la lecture des oeuvres littéraires. En nous servant des concepts mis au point par Louis Marin, nous allons tâcher d'abord de découvrir ce que signifie la nourriture dans la scène alimentaire des romans de Laberge, de Grignon et de Ringuet et puis de trouver quelle <> est à la fois cachée et représentée par le signe, afin de mettre à jour l'arrière-plan idéologique des trois romans que nous étudions.
Jonas Grethlein – Antonios Rengakos (Hgg.), Griechische Literaturgeschichtsschreibung. Traditionen, Probleme und Konzepte
Creators: name: Bär, Silvio
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Jonas Grethlein – Antonios Rengakos (Hgg.), Griechische Literaturgeschichtsschreibung. Traditionen, Probleme und Konzepte. Berlin/Boston: De Gruyter 2017, 312 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
ENCORE: An $\mathcal{O}(N_{\rm g}^2)$ Estimator for Galaxy $N$-Point Correlation Functions
Creators: name: Philcox, Oliver H. E.
name: Slepian, Zachary
name: Hou, Jiamin
name: Warner, Craig
name: Cahn, Robert N.
name: Eisenstein, Daniel J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present a new algorithm for efficiently computing the $N$-point correlation functions (NPCFs) of a 3D density field for arbitrary $N$. This can be applied both to a discrete spectroscopic galaxy survey and a continuous field. By expanding the statistics in a separable basis of isotropic functions built from spherical harmonics, the NPCFs can be estimated by counting pairs of particles in space, leading to an algorithm with complexity $\mathcal{O}(N_{\rm g}^2)$ for $N_{\rm g}$ particles, or $\mathcal{O}\left(N_\mathrm{FFT}\log N_\mathrm{FFT}\right)$ when using a Fast Fourier Transform with $N_\mathrm{FFT}$ grid-points. In practice, the rate-limiting step for $N>3$ will often be the summation of the histogrammed spherical harmonic coefficients, particularly if the number of radial and angular bins is large. In this case, the algorithm scales linearly with $N_{\rm g}$. The approach is implemented in the ENCORE code, which can compute the 3PCF, 4PCF, 5PCF, and 6PCF of a BOSS-like galaxy survey in $\sim$ $100$ CPU-hours, including the corrections necessary for non-uniform survey geometries. We discuss the implementation in depth, along with its GPU acceleration, and provide practical demonstration on realistic galaxy catalogs. Our approach can be straightforwardly applied to current and future datasets to unlock the potential of constraining cosmology from the higher-point functions.
description: 25 pages, 6 figures, accepted by MNRAS. Code available at https://github.com/oliverphilcox/encore
Higgs Hadroproduction at Large Feynman x
Creators: name: Brodsky, Stanley J.
name: Goldhaber, Alfred S.
name: Kopeliovich, Boris Z.
name: Schmidt, Ivan
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a novel mechanism for the production of the Higgs boson in inclusive hadronic collisions, which utilizes the presence of heavy quarks in the proton wave function. In these inclusive reactions the Higgs boson acquires the momenta of both the heavy quark and antiquark and thus carries 80% or more of the projectile's momentum. We predict that the cross section ${d σ/d x_F}(p \bar p \to H X)$ for the inclusive production of the Standard Model Higgs coming from intrinsic bottom Fock states is of order 150 fb at LHC energies, peaking in the region of $x_F \sim 0.9$. Our estimates indicate that the corresponding cross section coming from gluon-gluon fusion at $x_F = 0.9$ is relatively negligible and therefore the peak from intrinsic bottom should be clearly visible for experiments with forward detection capabilities. The predicted cross section for the production of the Standard Model Higgs coming from intrinsic heavy quark Fock states in the proton is sufficiently large that detection at the Tevatron and the LHC may be possible.
description: 23 pages, 5 figures
Heikki Koskenniemi (Hg.), Papyri Turkuenses (P. Turku). Die Papyri im Besitz der Universitätsbibliothek Turku
Creators: name: Reinard, Patrick
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Heikki Koskenniemi (Hg.), Papyri Turkuenses (P. Turku). Die Papyri im Besitz der Universitätsbibliothek Turku. Unter Mitwirkung von Erkki Koskenniemi und Johannes Koskenniemi. Commentationes Humanarum Litterarum 131. Sastamala: Finska Vetenskaps-Societeten 2014, V + 135 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
Ionopsis utricularioides Lindl.
Creators: name: Aguiar, João Marcelo Robazzi Bignelli Valente
name: Ferreira, Gabriel de Souza
name: Sanches, Patricia Alessandra
name: Simões Bento, Mauricio José
name: Sazima, Marlies
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Orchidaceae
Ionopsis
Ionopsis utricularioides

description: 2.1. What is the scent composition of I. utricularioides?
Eighteen different volatile components were found in the flowers of I. utricularioides. Floral volatile composition and concentrations of each compound varied between individuals (Table 1), as also recorded for several other deceptive orchids (Delle-Vedove et al., 2011; Dormont et al, 2014, 2019; Juillet and Scopece, 2010; Salzmann et al., 2007a, 2007b; Salzmann and Schiestl, 2007). As expected by the bee-pollination deceptive mechanism of I. utricularioides (Aguiar and Pansarin, 2019), many compounds in the orchid’ s fragrance are known to be important in pollinators’ attraction in other bee-pollinated plants, such as phenylacetaldehyde (Knauer and Schiestl, 2015; Theis, 2006; Waelti et al., 2008) and limonene, one of the most common volatiles emitted by flowers (Benelli et al., 2017; Erasto and Viljoen, 2008; Knudsen et al., 1993). β- ocimene, the major compound found in the fragrance of I. utricularioides, with an average emission of 52.6 ± 13.7 ng μl 1 (mean ± S.E.) and occurring in 80% of the sampled individuals (Table 1), is also very common in rewarding flowers pollinated by insects (Farr´e-Armengol et al., 2017; Knudsen et al., 2006). Farr´e-Armengol et al. (2017) proposed an interesting hypothesis that, given its recurrence and abundance in floral fragrances, β- ocimene would act as a general global floral signal to many plants in a community. In this context, other minor compounds could ensure the scent specificity needed for pollination (Farr´e-Armengol et al., 2017), as pollinators, especially bees, can detect minor changes in floral fragrance composition (Locatelli et al., 2016; Raguso, 2008). In the generalized food deceptive pollination context of I. utricularioides (Aguiar and Pansarin, 2019), β- ocimene could, thus, act as a global sign to attract pollinators, and bees could also perceive the variability derived from the other minor compounds of this orchid’ s scent. However, further behavioral or electrophysiological studies are needed to corroborate this hypothesis.
description: Published as part of Aguiar, João Marcelo Robazzi Bignelli Valente, Ferreira, Gabriel de Souza, Sanches, Patricia Alessandra, Simões Bento, Mauricio José & Sazima, Marlies, 2021, What pollinators see does not match what they smell: Absence of color-fragrance association in the deceptive orchid Ionopsis utricularioides, pp. 1-10 in Phytochemistry (112591) (112591) 182 on page 2, DOI: 10.1016/j.phytochem.2020.112591, http://zenodo.org/record/8291529
Relating Heat and Entanglement in Strong Coupling Thermodynamics
Creators: name: Bernardo, Bertúlio de Lima
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Explaining the influence of strong coupling in the dynamics of open quantum systems is one of the most challenging issues in the rapidly growing field of quantum thermodynamics. By using a particular definition of heat, we develop a new approach to study thermodynamics in the strong coupling regime, which takes into account quantum resources as coherence and entanglement. We apply the method to calculate the time-dependent thermodynamic properties of a system and an environment interacting via the generalized amplitude-damping channel (GADC). The results indicate that the transient imbalance between heat dissipated and heat absorbed that occurs in the process is responsible for the generation of system-environment entanglement.
description: 5+5 pages, 3+1 figures. Comments welcome
Ipsos Understanding Society: Wave 18 August 2021
Creators: name: Ipsos Public Affairs
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Has tattoos (1); regret getting tattooed (1); received tattooed before/after March 2020 (1); channels/media used to listen to music (7); preferred music genres (12); decade that produced the best music (12).
The high energy semiclassical asymptotics of loci of roots of fundamental solutions for polynomial potentials
Creators: name: Giller, Stefan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 34B05; 34L20; 34M40; 34M60

description: In the case of polynomial potentials all solutions to 1-D Schroedinger equation are entire functions totally determined by loci of their roots and their behaviour at infinity. In this paper a description of the first of the two properties is given for fundamental solutions for the high complex energy limit when the energy is quantized or not. In particular due to the fact that the limit considered is semiclassical it is shown that loci of roots of fundamental solutions are collected of selected Stokes lines (called exceptional) specific for the solution considered and are distributed along these lines in a specific way. A stable asymptotic limit of loci of zeros of fundamental solutions on their exceptional Stokes lines has island forms and there are infintely many of such roots islands on exceptional Stokes lines escaping to infinity and a finite number of them on exceptional Stokes lines which connect pairs of turning points. The results obtained for asymptotic roots distributions of fundamental solutions in the semiclassical high (complex) energy limit are of a general nature for polynomial potentials.
description: 41 pages, 14 figures
Kristine Iara, Hippodromus Palatii. Die Bauornamentik des Gartenhippodroms im Kaiserpalast auf dem Palatin in Rom
Creators: name: Maschek, Dominik
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Kristine Iara, Hippodromus Palatii. Die Bauornamentik des Gartenhippodroms im Kaiserpalast auf dem Palatin in Rom. Palilia Bd. 30. Wiesbaden: Reichert 2015, 272 S., 84 Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
Ipsos Understanding Society: Wave 17 August 2021
Creators: name: Ipsos Public Affairs
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Is a parent; parenting today compared to 20 years ago (4); effect of technology on parenting (1); social pressures on parents (2); parenting resources (1); work status (2); gender equality in the workforce (4); gender pay gap (1). Parents of children under the age of 18: responsible for majority of childcare and decisions at home (1); need more opportunities for self-care (1); need help from family and friends (1). Employed full or part time: women in positions of leadership (1).
Integrable Structure of Ginibre's Ensemble of Real Random Matrices and a Pfaffian Integration Theorem
Creators: name: Akemann, Gernot
name: Kanzieper, Eugene
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Probability (math.PR)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In the recent publication [E. Kanzieper and G. Akemann, Phys. Rev. Lett. 95, 230201 (2005); arXiv: math-ph/0507058], an exact solution was reported for the probability "p_{n,k}" to find exactly "k" real eigenvalues in the spectrum of an "n" by "n" real asymmetric matrix drawn at random from Ginibre's Orthogonal Ensemble (GinOE). In the present paper, we offer a detailed derivation of the above result by concentrating on the proof of the Pfaffian integration theorem, the key ingredient of our analysis of the statistics of real eigenvalues in the GinOE. We also initiate a study of the correlations of complex eigenvalues and derive a formula for the joint probability density function of all complex eigenvalues of a GinOE matrix restricted to have exactly "k" real eigenvalues. In the particular case of "k=0", all correlation functions of complex eigenvalues are determined.
description: 73 pages, 6 figures, 2 tables
Kornelia Kressirer, Das Greisenalter in der griechischen Antike. Untersuchungen der Vasenbilder und Schriftquellen der archaischen und klassischen Zeit
Creators: name: Räuchle, Viktoria
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Kornelia Kressirer, Das Greisenalter in der griechischen Antike. Untersuchungen der Vasenbilder und Schriftquellen der archaischen und klassischen Zeit, 2 Teilbände. Hamburg: Dr. Kovač 2016, 892 S., 59 s/w-Taf.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
Impact of Echocardiographic Parameters on Recurrent Stroke in the Randomized REDUCE PFO Cryptogenic Stroke Trial
Creators: name: Lefebvre, Bénédicte
name: Naidu, Suveeksha
name: Nathan, Ashwin S.
name: Chen, Zhen
name: Ky, Bonnie
name: Silvestry, Frank E.
name: Søndergaard, Lars
name: Settergren, Magnus
name: Nielsen-Kudsk, Jens Erik
name: Rhodes, John F.
name: Kasner, Scott E.
name: Herrmann, Howard C.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology

description: Transcatheter closure of patent foramen ovale (PFO) in cryptogenic stroke reduces the risk for recurrent stroke, but whether anatomic parameters can predict this remains unclear. We examined the associations between quantitated transesophageal echocardiogram (TEE) parameters and recurrent stroke in a large randomized study of PFO closure with adjudicated endpoints. Baseline TEEs from the REDUCE trial comparing medically treated patients with transcatheter closure were analyzed by a trained sonographer blinded to patient characteristics. Associations between echocardiographic parameters with recurrent stroke and treatment groups were determined with a log-rank test and Cox multivariable regression. All TEEs were analyzed (180 medically treated, 358 PFO closure; mean age 45 years). Parameters were similar, including large shunt (22%), hypermobile septum (27%), eustachian valve (26%), and Chiari network (7%). Atrial septum aneurysm (ASA) was observed more frequently in the medically treated group (12% vs 6%, p = 0.018). Among patients in the medically treated group, there was a signal toward higher incidence of recurrent stroke to 5 years with than without ASA (19% vs 6%, p = 0.097), for large shunt (15% vs 5%, p = 0.116), and was significantly higher for ASA or hypermobile septum with large shunt (67% vs 5%, p ≤ 0.001 and 29% vs 6%, p = 0.036, respectively). Closure was associated with a lower risk of stroke in all subgroups. In this TEE analysis of cryptogenic stroke patients, recurrent stroke was higher in medically treated patients with ASA or hypermobile septum and a large shunt. The relative reduction of stroke with transcatheter PFO closure was similar regardless of anatomy, suggesting that treatment should not be limited to these patients. ASA, atrial septum aneurysm; CI, confidence interval; EV, eustachian valve; IQR, interquartile range; KM, Kaplan–Meier; LA, left atrium; PFO, patent foramen ovale; RA, right atrium; SD, standard deviation; TEE, transesophageal echocardiogram.
Knowledge representation and problem solving for an intelligent tutoring system
Creators: name: Li, Vincent
Publisher: name: University of British Columbia
Year: 2010

description: As part of an effort to develop an intelligent tutoring system, a set of knowledge representation frameworks was proposed to represent expert domain knowledge. A general representation of time points and temporal relations was developed to facilitate temporal concept deductions as well as facilitating explanation capabilities vital in an intelligent advisor system. Conventional representations of time use a single-referenced timeline and assigns a single unique value to the time of occurrence of an event. They fail to capture the notion of events, such as changes in signal states in microcomputer systems, which do not occur at precise points in time, but rather over a range of time with some probability distribution. Time is, fundamentally, a relative quantity. In conventional representations, this relative relation is implicitly defined with a fixed reference, "time-zero", on the timeline. This definition is insufficient if an explanation of the temporal relations is to be constructed. The proposed representation of time solves these two problems by representing a time point as a time-range and making the reference point explicit. An architecture of the system was also proposed to provide a means of integrating various modules as the system evolves, as well as a modular development approach. A production rule EXPERT based on the rule framework used in the Graphic Interactive LISP tutor (GIL) [44, 45], an intelligent tutor for LISP programming, was implemented to demonstrate the inference process using this time point representation. The EXPERT is goal-driven and is intended to be an integral part of a complete intelligent tutoring system.
An optical overview of blazars with LAMOST I: Hunting changing-look blazars and new redshift estimates
Creators: name: Peña-Herazo, Harold A.
name: Massaro, Francesco
name: Gu, Minfeng
name: Paggi, Alessandro
name: Landoni, Marco
name: D'Abrusco, Raffaele
name: Ricci, Federica
name: Masetti, Nicola
name: Chavushyan, Vahram
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The extragalactic $γ$-rays sky observed by Fermi-Large Area Telescope (LAT) is dominated by blazars. In the fourth release of the Fermi-LAT Point Source Catalog (4FGL), are sources showing a multifrequency behavior similar to that of blazars but lacking an optical spectroscopic confirmation of their nature known as Blazar Candidate of Uncertain type (BCUs). We aim at confirming the blazar nature of BCUs and test if new optical spectroscopic observations can reveal spectral features, allowing us to get a redshift estimate for known BL Lac objects. We also aim to search for and discover changing-look blazars (i.e., blazars that show a different classification at different epochs). We carried out an extensive search for optical spectra available in the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) Data Release 5 (DR5) archive. We selected sources out of the 4FGL catalog, the list of targets from our follow-up spectroscopic campaign of unidentified or unassociated $γ$-ray sources, and the multifrequency catalog of blazars: the Roma-BZCAT. We selected a total of 392 spectra. We also compare some of the LAMOST spectra with those available in the literature. We classified 20 BCUs confirming their blazar-like nature. Then we obtained 15 new redshift estimates for known blazars. We discovered 26 transitional (i.e., changing-look) blazars that changed their classification. Finally, we were able to confirm the blazar-like nature of six BL Lac candidates. All remaining sources analyzed agree with previous classifications. BL Lac objects are certainly the most elusive type of blazars in the $γ$-ray extragalactic sky.
description: 16 pages, 2 figures, 4 tables
Axios/Ipsos Hard Truths Higher Education Poll: August 2021
Creators: name: Axios
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Most worrying social/political issues (1); COVID-19/coronavirus (1); value of higher education (10); trade programs/community colleges (3); four-year colleges and universities (3); post-graduate universities (3); professional graduate schools (med/law schools)(3); support for higher education policies (8); student debt forgiveness (2); free higher education (2); basis of college admissions (4); people without college degrees are looked down on (1); an educated workforce should be a priority (1); racial equality (8); liberal bias in higher education (1): conservative bias in higher education (1); main source of news (1).
Morphic and principal-ideal group rings
Creators: name: Dorsey, Thomas J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16E50, 16U99, 16S34

description: We observe that the class of left and right artinian left and right morphic rings agrees with the class of artinian principal ideal rings. For $R$ an artinian principal ideal ring and $G$ a group, we characterize when $RG$ is a principal ideal ring; for finite groups $G$, this characterizes when $RG$ is a left and right morphic ring. This extends work of Passman, Sehgal and Fisher in the case when $R$ is a field, and work of Chen, Li, and Zhou on morphic group rings.
description: 21 pages
Risking your NEC
Creators: name: Hoyos, Carlos
name: Jokela, Niko
name: Penín, Jose Manuel
name: Ramallo, Alfonso V.
name: Tarrío, Javier
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Energy conditions, especially the null energy condition (NEC), are generically imposed on solutions to retain a physically sensible classical field theory and they also play an important role in the AdS/CFT duality. Using this duality, we study non-trivially deformed strongly coupled quantum field theories at large-$N_c$. The corresponding dual classical gravity constructions entail the use of radially non-monotonic D-brane distributions. The gravity backgrounds are supersymmetric and hence perturbatively stable, and do not possess curvature singularities. There are no short-cuts through the bulk spacetime for signal propagation which assures that the field theory duals are causal. Nevertheless, some of our solutions violate the NEC in the gravity dual. In these cases the non-monotonicity of the D-brane distributions is reflected in the properties of the renormalization group flow: none of the $c$-functions proposed in the literature are monotonic. This further suggests that the non-monotonic behavior of the $c$-functions within previously known anisotropic backgrounds does not originate from the breaking of Lorentz invariance. We surmise that NEC violations induced by quantum corrections also need to be considered in holographic duals, but can be studied already at the classical level.
description: 31 pages, 4 appendices, 9 figures
Kubo estimation of the electrical conductivity for a hot relativistic fluid in the presence of a magnetic field
Creators: name: Satapathy, Sarthak
name: Ghosh, Snigdha
name: Ghosh, Sabyasachi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We have explored the multi-component structure of electrical conductivity of relativistic Fermionic and Bosonic fluid in presence of magnetic field by using Kubo approach. This is done by explicitly evaluating the thermo-magnetic vector current spectral functions using the real time formalism of finite temperature field theory and the Schwinger proper time formalism. In absence of magnetic field, the one-loop diagramatic representation of Kubo expression of any transport coefficients is exactly same with relaxation time approximation (RTA) based expression, but this equality does not hold for finite magnetic field picture due to lacking of proper implementation of quantum effect in latter approach. We have shown this discrepancy for particular transport coefficient - electrical conductivity, whose starting point in Kubo approach will be electromagnetic current-current correlator and its one-loop skeleton diagram carrying two scalar/Dirac propagators for scalar/Dirac fluid. Through a numerical comparison between RTA and Kubo expressions of conductivity components (parallel and perpendicular), we have attempted to interpret detail quantum field theoretical effect, contained by Kubo expression but not by RTA expression. In classical RTA expression we get magnetic field independent parallel conductivity due to zero Lorentz force but in field theoretical Kubo expression, it decreases and increases with the magnetic field for scalar and Dirac medium respectively due to Landau quantization effect. This parallel component of conductivity can be interpreted as zero momentum limit of quantum fluctuation with same Landau level internal lines. While for perpendicular component of conductivity, fluctuation with Landau level differences $\pm 1$ are noticed, which might be a new realization of transportation in field theoretical sector.
description: Version published in Physical Review D
Effects of correlations on phase diagrams of the two-dimensional Su-Schrieffer-Heeger model with the longer-range hoppings
Creators: name: Du, Tao
name: Li, Yuexu
name: Lu, Helin
name: Zhang, Hui
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: For the Su-Schrieffer-Heeger (SSH) model on the two-dimensional square lattice, two third nearest neighbor hoppings which preserve chiral symmetry are introduced. Like the case of one dimension, the longer-range hopping can drive topological transitions and leads to the larger topological invariant (vectored Berry phase for the two dimensional SSH model). We obtain the phase boundaries and topological phase diagrams from the winding pattern of $ρ(k_l)$ of the Bloch Hamiltonian. Effects of correlations on the extended two dimensional SSH model are also investigated. The correlation shifts the phase boundaries and leads to topological transitions. Several special points in non-interacting phase diagrams are chosen to illustrate the different phase transitions and a correlations-driven topologically non-trivial phase from the trivial one is found. In this work, the slave-rotor mean field method is applied to the interacting model and we focus on the case of physical electrons, i.e. the Mott transition of charge degree of freedom is avoided in our investigations.
description: 9 pages, 10 figures
Infinitesimal cohomology and the Chern character to negative cyclic homology
Creators: name: Cortiñas, G.
name: Haesemeyer, C.
name: Weibel, C. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: K-Theory and Homology (math.KT)
subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 19D55 (Primary) 13D03, 14F10 (Secondary)

description: There is a Chern character from K-theory to negative cyclic homology. We show that it preserves the decomposition coming from Adams operations, at least in characteristic 0. This is done by using infinitesimal cohomology to reduce to the case of a nilpotent ideal (which had been established by Cathelineau some time ago).
description: Included reference for identification of relative Chern and rational homotopy theory characters; some minor editing for clarity
B1MG M3.2 Outcome of consultation on sequencing practices. A report on the status of procedures for WGS and WES across Europe will be prepared
Creators: name: Gut, Ivo
name: Estelles, Lucia
Publisher: name: Zenodo
Year: 2021
Subjects: B1MG
Beyond 1 Million Genomes
1+MG
1 Million Genomes Initiative
ELIXIR
Sequencing practices

description: B1MG M3.2 Outcome of consultation on sequencing practices. A report on the status of procedures for WGS and WES across Europe will be prepared
Half-wormholes in SYK with one time point
Creators: name: Mukhametzhanov, Baur
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this note we study the SYK model with one time point, recently considered by Saad, Shenker, Stanford, and Yao. Working in a collective field description, they derived a remarkable identity: the square of the partition function with fixed couplings is well approximated by a "wormhole" saddle plus a "pair of linked half-wormholes" saddle. It explains factorization of decoupled systems. Here, we derive an explicit formula for the half-wormhole contribution. It is expressed through a hyperpfaffian of the tensor of SYK couplings. We then develop a perturbative expansion around the half-wormhole saddle. This expansion truncates at a finite order and gives the exact answer. The last term in the perturbative expansion turns out to coincide with the wormhole contribution. In this sense the wormhole saddle in this model does not need to be added separately, but instead can be viewed as a large fluctuation around the linked half-wormholes.
description: 14 pages, 3 figures, minor corrections
Difference Equations in Massive Higher Order Calculations
Creators: name: Bierenbaum, I.
name: Blümlein, J.
name: Klein, S.
name: Schneider, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Mathematical Software (cs.MS)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The calculation of massive 2--loop operator matrix elements, required for the higher order Wilson coefficients for heavy flavor production in deeply inelastic scattering, leads to new types of multiple infinite sums over harmonic sums and related functions, which depend on the Mellin parameter $N$. We report on the solution of these sums through higher order difference equations using the summation package {\tt Sigma}.
description: 15 pages latex, Proceedings ACAT 2007
Nurses' perspectives of parental participation in the care of preterm infants in a special care nursery
Creators: name: Foster, Norma
Publisher: name: University of British Columbia
Year: 2010

description: Nurses in neonatal special care nurseries with a philosophy of family centered care involve parents in the care of preterm infants. There is little research describing nurses' perspectives of parental participation in care. Using interview data obtained from one secondary level neonatal special care nursery, this study attempts to understand the meaning parental participation in care has for neonatal nurses and the way that meaning is expressed in various nursing activities. Twelve nurses were interviewed about their reaction to parental participation in various activities such as feeding and bathing their babies. These nurses are all full time staff members in the nursery. Findings of the research are that there are two main nursing perspectives of parental participation in the care of preterm infants in a special care nursery. These two perspectives are labelled the 'our baby' and 'their baby' perspective. The 'our baby' group of subjects maintain a traditional role of control of care. The 'their baby' group are committed to the philosophy of family centered care within certain boundaries. An example of the difference., in the two perspectives was discovered in the area of infant feeding. The 'our baby' nurses thought that parents engaged in this activity increased the workload while the 'their baby' nurses thought that parents decreased workload. The 'our baby' nurses treated most parents in a similar way but the 'their baby' nurses individualized their approach to parents. The 'their baby' nurses' enjoyed spending time with parents but the other group said that there were less parents to deal with when they were working at night. Both groups work side by side with little conflict. Implications for the selection and training of nurses are noted as well as implications for further research.
Magnus Frisch (Hg.), Alte Sprachen – neuer Unterricht
Creators: name: Weidmann, Dirk
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Magnus Frisch (Hg.), Alte Sprachen – neuer Unterricht. Ars Didactica Bd. 1. Speyer: Kartoffeldruck-Verlag 2015, 252 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
A class of variational functionals in conformal geometry
Creators: name: Chang, Sun-Yung Alice
name: Fang, Hao
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C15

description: We derive a class of variational functionals which arise naturally in conformal geometry. In the special case when the Riemannian manifold is locally conformal flat, the functional coincides with the well studied functional which is the integration over the manifold of the k-symmetric function of the Schouten tensor of the metric on the manifold.
description: 16 pages
Networks and Our Limited Information Horizon
Creators: name: Rosvall, M.
name: Sneppen, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: In this paper we quantify our limited information horizon, by measuring the information necessary to locate specific nodes in a network. To investigate different ways to overcome this horizon, and the interplay between communication and topology in social networks, we let agents communicate in a model society. Thereby they build a perception of the network that they can use to create strategic links to improve their standing in the network. We observe a narrow distribution of links when the communication is low and a network with a broad distribution of links when the communication is high.
description: 5 pages and 5 figures
Stellar Superflares Observed Simultaneously with Kepler and XMM-Newton
Creators: name: Kuznetsov, Alexey A.
name: Kolotkov, Dmitrii Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar and stellar flares are powerful events which produce intense radiation across the electromagnetic spectrum. Multiwavelength observations are highly important for understanding the nature of flares, because different flare-related processes reveal themselves in different spectral ranges. To study the correlation between thermal and nonthermal processes in stellar flares, we have searched the databases of Kepler (optical observations) and XMM-Newton (soft X-rays) for the flares observed simultaneously with both instruments; nine distinctive flares (with energies exceeding $10^{33}$ erg) on three stars (of K-M spectral classes) have been found. We have analyzed and compared the flare parameters in the optical and X-ray spectral ranges; we have also compared the obtained results with similar observations of solar flares. Most of the studied stellar flares released more energy in the optical range than in X-rays. In one flare, X-ray emission strongly dominated, which could be caused either by soft spectrum of energetic electrons or by a near-limb position of this flare. The X-ray flares were typically delayed with respect to and shorter than their optical counterparts, which is partially consistent with the Neupert effect. Using the scaling laws based on the magnetic reconnection theory, we have estimated the characteristic magnetic field strengths in the stellar active regions and the sizes of these active regions as about $25-70$ G and $250\,000-500\,000$ km, respectively. The observed stellar superflares appear to be scaled-up versions of solar flares, with a similar underlying mechanism and nearly the same characteristic magnetic field values, but with much larger active region sizes.
description: Accepted to ApJ; 20 pages, 11 figures, 4 tables
Eugenia Gerousi-Bendermacher, Sepulkralkultur auf der Insel Thera (Santorin). Der spätantike Friedhof in Perissa und seine Ausgrabungsfunde unter besonderer Berücksichtigung der Tonlampen
Creators: name: Böhlendorf-Arslan, Beate
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Eugenia Gerousi-Bendermacher, Sepulkralkultur auf der Insel Thera (Santorin). Der spätantike Friedhof in Perissa und seine Ausgrabungsfunde unter besonderer Berücksichtigung der Tonlampen, Marburger Beiträge zur Archäologie Bd. 1. Marburg: Eigenverlag des Archäologischen Seminars der Philipps-Universität 2014, 221 S., 479 farb. Abb., 16 s/w-Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
Alexander Weiß, Soziale Elite und Christentum. Studien zu Ordo-Angehörigen unter den frühen Christen
Creators: name: Eckhardt, Benedikt
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Alexander Weiß, Soziale Elite und Christentum. Studien zu Ordo-Angehörigen unter den frühen Christen. Millennium-Studien Bd. 52. Berlin/Boston: De Gruyter 2015, 245 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
Strong light-matter coupling in MoS$_2$
Creators: name: Kusch, Patryk
name: Mueller, Niclas S.
name: Hartmann, Martin T.
name: Reich, Stephanie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Polariton-based devices require materials where light-matter coupling under ambient conditions exceeds losses, but our current selection of such materials is limited. Here we measured the dispersion of polaritons formed by the $A$ and $B$ excitons in thin MoS$_2$ slabs by imaging their optical near fields. We combined fully tunable laser excitation in the visible with a scattering near-field optical microscope to excite polaritons and image their optical near fields. We obtained the properties of bulk MoS$_2$ from fits to the slab dispersion. The in-plane excitons are in the strong regime of light-matter coupling with a coupling strength ($40-100\,$meV) that exceeds their losses by at least a factor of two. The coupling becomes comparable to the exciton binding energy, which is known as very strong coupling. MoS$_2$ and other transition metal dichalcogenides are excellent materials for future polariton devices.
Güler Ateş, Die rote Feinkeramik von Aizanoi als lokaler Kulturträger. Untersuchungen zum Verhältnis von lokaler roter Feinkeramik und importierter Sigillata
Creators: name: Ladstätter, Sabine
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Güler Ateş, Die rote Feinkeramik von Aizanoi als lokaler Kulturträger. Untersuchungen zum Verhältnis von lokaler roter Feinkeramik und importierter Sigillata. Archäologische Forschungen Bd. 32 = Aizanoi Bd. 2. Reichert: Wiesbaden 2015, 168 S., 445 s/w-Abb., 18 farb. Abb., 2 Faltpläne, 4 Diagramme, 76 Taf.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
Additional file 1 of Identification of immunotherapy-related lncRNA signature for predicting prognosis, immunotherapy responses and drug candidates in bladder cancer
Creators: name: Hui, Pengyu
name: Ni, Feng
name: Zheng, Liang
name: Jia, Lei
name: Wang, Zhe
Publisher: name: figshare
Year: 2023
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1: Table S1. Univariate and multivariate COX results of 6 immunotherapy-related lncRNAs. Table S2. Results of has-miR-582-5p univariate and multivariate cox analysis. Table S3. Detailed relationship between HNRNPA2B1 and small molecular drugs. Figure S1. Prognostic analysis of has-miR-582-5p and the relationship between SBF2-AS1 and immune microenvironment.
On the spectral norm of a random Toeplitz matrix
Creators: name: Meckes, Mark W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Suppose that $T_n$ is a Toeplitz matrix whose entries come from a sequence of independent but not necessarily identically distributed random variables with mean zero. Under some additional tail conditions, we show that the spectral norm of $T_n$ is of the order $\sqrt{n \log n}$. The same result holds for random Hankel matrices as well as other variants of random Toeplitz matrices which have been studied in the literature.
description: v2: Minor corrections and changes in exposition
Variability of Disk Emission in Pre-Main Sequence and related Stars. V. Occultation Events from the innermost disk region of the Herbig Ae Star HD 163296
Creators: name: Pikhartova, Monika
name: Long, Zachary C.
name: Assani, Korash D.
name: Fernandes, Rachel B.
name: Bayyari, Ammar
name: Sitko, Michael L.
name: Grady, Carol A.
name: Wisniewski, John P.
name: Rich, Evan A.
name: Henden, Arne A.
name: Danchi, William C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: HD 163296 is a Herbig Ae star that underwent a dramatic $\sim$0.8 magnitude drop in brightness in the V photometric band in 2001 and a brightening in the near-IR in 2002. Because the star possesses Herbig-Haro objects travelling in outflowing bipolar jets, it was suggested that the drop in brightness was due to a clump of dust entrained in a disk wind, blocking the line-on-sight toward the star. In order to quantify this hypothesis, we investigated the brightness drop at visible wavelengths and the brightening at near-IR wavelengths of HD 163296 using the Monte Carlo Radiative Transfer Code, HOCHUNK3D. We created three models to understand the events. Model 1 describes the quiescent state of the system. Model 2 describes the change in structure that led to the drop in brightness in 2001. Model 3 describes the structure needed to produce the observed 2002 brightening of the near-IR wavelengths. Models 2 and 3 utilize a combination of a disk wind and central bipolar flow. By introducing a filled bipolar cavity in Models 2 and 3, we were able to successfully simulate a jet-like structure for the star with a disk wind and created the drop and subsequent increase in brightness of the system. On the other hand, when the bipolar cavity is not filled, Model 1 replicates the quiescent state of the system.
description: 9 pages, 10 figures