cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Strong illposedness for SQG in critical Sobolev spaces
Creators: name: Jeong, In-Jee
name: Kim, Junha
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We prove that the inviscid surface quasi-geostrophic (SQG) equations are strongly ill-posed in critical Sobolev spaces: there exists an initial data $H^{2}(\bbT^2)$ without any solutions in $L^\infty_{t}H^{2}$. Moreover, we prove strong critical norm inflation for $C^\infty$--smooth data. Our proof is robust and extends to give similar ill-posedness results for the family of modified SQG equations which interpolate the SQG with two-dimensional incompressible Euler equations.
description: 35 pages
title: Laudatio zur Verleihung der Carl-Friedrich-Gauß-Medaille der Braunschweigischen Wissenschaftlichen Gesellschaft an Prof. Dr. Dres. h.c. Paul Kirchhof
Creators: name: Luchterhandt, Otto
Publisher: name: Cramer
Year: 2019
Subjects: subject: Jahrbuch der BWG
subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: 902

description: Jahrbuch der Braunschweigischen Wissenschaftlichen Gesellschaft, vol. 2018Jahrbuch 2018 der Braunschweigischen Wissenschaftlichen Gesellschaft, vol. 2018, p. 206
Dynamic Cantor Derivative Logic
Creators: name: Fernández-Duque, David
name: Montacute, Yoàv
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic (math.LO)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Topological semantics for modal logic based on the Cantor derivative operator gives rise to derivative logics, also referred to as $d$-logics. Unlike logics based on the topological closure operator, $d$-logics have not previously been studied in the framework of dynamical systems, which are pairs $(X,f)$ consisting of a topological space $X$ equipped with a continuous function $f\colon X\to X$. We introduce the logics $\bf{wK4C}$, $\bf{K4C}$ and $\bf{GLC}$ and show that they all have the finite Kripke model property and are sound and complete with respect to the $d$-semantics in this dynamical setting. In particular, we prove that $\bf{wK4C}$ is the $d$-logic of all dynamic topological systems, $\bf{K4C}$ is the $d$-logic of all $T_D$ dynamic topological systems, and $\bf{GLC}$ is the $d$-logic of all dynamic topological systems based on a scattered space. We also prove a general result for the case where $f$ is a homeomorphism, which in particular yields soundness and completeness for the corresponding systems $\bf{wK4H}$, $\bf{K4H}$ and $\bf{GLH}$. The main contribution of this work is the foundation of a general proof method for finite model property and completeness of dynamic topological $d$-logics. Furthermore, our result for $\bf{GLC}$ constitutes the first step towards a proof of completeness for the trimodal topo-temporal language with respect to a finite axiomatisation -- something known to be impossible over the class of all spaces.
description: Extended version of the paper in Computer Science Logic (CSL) 2022 Proceedings
Exact inflationary solutions
Creators: name: Piccinelli, Gabriella
name: Matos, Tonatiuh
name: Montesinos, Merced
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a new class of exact inflationary solutions for the evolution of a universe with spatial curvature, filled with a perfect fluid, a scalar field with potential $V_{\pm}(ϕ)=λ(ϕ^2\pmδ^2)^2$ and a cosmological constant $Λ$. With the $V_+(ϕ)$ potential and a negative cosmological constant, the scale factor experiments a graceful exit. We give a brief discussion about the physical meaning of the solutions.
description: 10 pages, revtex file, 6 figures included with epsf. To be published in IJMP-D
Megachile (Xanthosarus) latimanus Say 1823
Creators: name: Zarrillo, Tracy A.
name: Stoner, Kimberly A.
name: Ascher, John S.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Megachile
Megachile latimanus

description: Megachile (Xanthosarus) latimanus Say 1823
Broad-handed Leafcutter
Notes: This species regularly collects pollen of the Fabaceae and Asteraceae, and in Connecticut it has been found on agricultural land, sandplain remnants, wildlife management areas, and grasslands.
description: Published as part of Zarrillo, Tracy A., Stoner, Kimberly A. & Ascher, John S., 2025, Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA), pp. 1-138 in Zootaxa 5586 (1) on pages 128-129, DOI: 10.11646/zootaxa.5586.1.1, http://zenodo.org/record/14895883
Paired parton quantum Hall states: a coupled wire construction
Creators: name: Sirota, Alexander
name: Sahoo, Sharmistha
name: Cho, Gil Young
name: Teo, Jeffrey C. Y.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Pfaffian fractional quantum Hall (FQH) states are incompressible non-Abelian topological fluids present in a half-filled electron Landau level, where there is a balanced population of electrons and holes. They give rise to half-integral quantum Hall plateaus that divide critical transitions between integer quantum Hall (IQH) states. On the other hand, there are Abelian FQH states, such as the Laughlin state, that can be understood using partons, which are fermionic divisions of the electron. In this paper, we propose a new family of incompressible paired parton FQH states at filling $ν=1/6$ (modulo 1) that emerge from critical transitions between IQH states and Abelian FQH states at filling $ν=1/3$ (modulo 1). These paired parton states are originated from a half-filled parton Landau level, where there is an equal amount of partons and holes. They generically support Ising-like anyonic quasiparticle excitations and carry non-Abelian Pfaffian topological orders (TO) for partons. We prove the principle existence of these paired parton states using exactly solvable interacting arrays of electronic wires under a magnetic field. Moreover, we establish a new notion of particle-hole (PH) symmetry for partons and relate the PH symmetric parton Pfaffian TO with the gapped symmetric surface TO of a fractional topological insulator in three dimension.
description: 34 pages, 12 figures
A Study of an Agile Methodology with Scrum Approach to the Filipino Company-Sponsored I.T. Capstone Program
Creators: name: Ng, Giuseppe C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Purpose - The research aims to show the relevance of company client sponsored student projects in the University of Asia and the Pacific Information Technology (UA&P IT) Capstone Program through the use ofan Agile Methodology with Scrum Approach. Method - The modified program is employed on two batches with content analysis and survey results as benchmarks. Results - Surveys at the end of the sprints for both clients and students revealed that the length of the sprint was a critical factor in the development of the information system, and that students learned from addressing additional challenges such as academic load, team pressure and communication issues. Conclusion - Over-all results showed that clients were impressed and keen to adopt the student works. Recommendations - Maintainability aspects of the research can be analyzed for future studies. Increasing the sample size with additional batches could lead to discovery of additional factors not previously seen. Research Implications - The research could help improve other Capstone Programs while improving communication with company clients.
title: Freiheit zwischen Zählen und Erzählen, Messen und Ermessen
Creators: name: Kirchhof, Paul
Publisher: name: Cramer
Year: 2019
Subjects: subject: Jahrbuch der BWG
subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: 340

description: Jahrbuch der Braunschweigischen Wissenschaftlichen Gesellschaft, vol. 2018Jahrbuch 2018 der Braunschweigischen Wissenschaftlichen Gesellschaft, vol. 2018, p. 213
Distributive laws in residuated binars
Creators: name: Fussner, Wesley
name: Jipsen, Peter
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 06F05, 03G10, 08B15

description: In residuated binars there are six non-obvious distributivity identities of $\cdot$,$/$,$\backslash$ over $\wedge, \vee$. We show that in residuated binars with distributive lattice reducts there are some dependencies among these identities; specifically, there are six pairs of identities that imply another one of these identities, and we provide counterexamples to show that no other dependencies exist among these.
Band structure from random interactions
Creators: name: Bijker, R.
name: Frank, A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Nuclear Theory (nucl-th)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The anharmonic vibrator and rotor regions in nuclei are investigated in the framework of the interacting boson model using an ensemble of random one- and two-body interactions. We find a predominance of L(P)=0(+) ground states, as well as strong evidence for the occurrence of both vibrational and rotational band structures. This remarkable result suggests that such band structures represent a far more general (robust) property of the collective model space than is generally thought.
description: 5 pages, 4 figures, Phys. Rev. Lett., in press
Osmia (Melanosmia) atriventris Cresson 1864
Creators: name: Zarrillo, Tracy A.
name: Stoner, Kimberly A.
name: Ascher, John S.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Osmia
Osmia atriventris

description: Osmia (Melanosmia) atriventris Cresson, 1864: 29 (Connecticut lectotype designated by Cresson, 1916).
Lectotype. Female USA: Connecticut: E. Norton (USNM).
Notes: This mason bee is reported to be a major visitor to blueberries (Vaccinium) in Maine (Dibble et al. 2017; Stubbs et al. 1997), and it has been collected from Vaccinium in Connecticut as well. It has been found at the edge of northern wetlands, agricultural land, a coastal wildlife refuge, a riverbank, powerline ROW, and an arboretum.
description: Published as part of Zarrillo, Tracy A., Stoner, Kimberly A. & Ascher, John S., 2025, Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA), pp. 1-138 in Zootaxa 5586 (1) on page 132, DOI: 10.11646/zootaxa.5586.1.1, http://zenodo.org/record/14895883
title: Israel Jacobson und die jüdische Reformbewegung in Deutschland
Creators: name: Kühne, Gunther
Publisher: name: Cramer
Year: 2019
Subjects: subject: Jahrbuch der BWG
subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: 340

description: Jahrbuch der Braunschweigischen Wissenschaftlichen Gesellschaft, vol. 2018Jahrbuch 2018 der Braunschweigischen Wissenschaftlichen Gesellschaft, vol. 2018, p. 270
Economic efficiency of on-farm land management in agricultural organizations
Creators: name: Auesbekov, Nuriddin R.
name: Akhmetov, Yergali S.
name: Аbdeshev, Kuanysh B.
name: Rakhimzhanova, Gaukhar M.
Publisher: name: International Journal on Food System Dynamics
Year: 2024
Subjects: Agricultural sector of Kazakhstan; talent pool; innovations in agriculture; land use; economic sustainability

description: Good land management provides protection against land degradation for long-term and effective use. A survey was conducted among students in Kazakhstan for an internal assessment of the education quality. It was found that for ensuring competent land management, state financial support and external investment have to meet the needs for working capital and improve the quality of the material and technical base and staff; the quality education of new experts and their motivation have to be ensured; innovations introduction in the agricultural sector and long-term planning with centralized control have prospects for increasing economic efficiency.
description: International Journal on Food System Dynamics, Vol 15, No 3 (2024): Country Issue: Kazakhstan
Mean proper motions, space orbits and velocity dispersion profiles of Galactic globular clusters derived from Gaia DR2 data
Creators: name: Baumgardt, H.
name: Hilker, M.
name: Sollima, A.
name: Bellini, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have derived the mean proper motions and space velocities of 154 Galactic globular clusters and the velocity dispersion profiles of 141 globular clusters based on a combination of Gaia DR2 proper motions with ground-based line-of-sight velocities. Combining the velocity dispersion profiles derived here with new measurements of the internal mass functions allows us to model the internal kinematics of 144 clusters, more than 90% of the currently known Galactic globular cluster population. We also derive the initial cluster masses by calculating the cluster orbits backwards in time applying suitable recipes to account for mass loss and dynamical friction. We find a correlation between the stellar mass function of a globular cluster and the amount of mass lost from the cluster, pointing to dynamical evolution as one of the mechanisms shaping the mass function of stars in clusters. The mass functions also show strong evidence that globular clusters started with a bottom-light initial mass function. Our simulations show that the currently surviving globular cluster population has lost about 80% of its mass since the time of formation. If globular clusters started from a log-normal mass function, we estimate that the Milky Way contained about 500 globular clusters initially, with a combined mass of about $2.5 \cdot 10^8$ $M_\odot$. For a power-law initial mass function, the initial mass in globular clusters could have been a factor of three higher.
description: 21 pages, 8 figures, accepted for publication in MNRAS, all data also available at https://people.smp.uq.edu.au/HolgerBaumgardt/globular/
The Variance and the Asymptotic Distribution of the Length of Longest $k$-alternating Subsequences
Creators: name: Çiçeksiz, Altar
name: Demirci, Yunus Emre
name: Işlak, Ümit
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A05 (Primary), 60F05 (Secondary)

description: We obtain an explicit formula for the variance of the number of $k$-peaks in a uniformly random permutation. This is then used to obtain an asymptotic formula for the variance of the length of longest $k$-alternating subsequence in random permutations. Also a central limit is proved for the latter statistic.
description: Typos and errors corrected
On support $τ$-tilting graphs of gentle algebras
Creators: name: Fu, Changjian
name: Geng, Shengfei
name: Liu, Pin
name: Zhou, Yu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Representation Theory (math.RT)
subject: Combinatorics (math.CO)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: Let $A$ be a finite-dimensional gentle algebra over an algebraically closed field. We investigate the combinatorial properties of support $τ$-tilting graph of $A$. In particular, it is proved that the support $τ$-tilting graph of $A$ is connected and has the so-called reachable-in-face property. This property was conjectured by Fomin and Zelevinsky for exchange graphs of cluster algebras which was recently confirmed by Cao and Li.
description: 21 pages. v2: reference added, comments are welcome. v3: fix some typos, reference added, Remark 3.5 is added to discuss the converse of Prop. 3.4. v4:minor change
title: Der Niedergang der Volksparteien und der Umbruch des Parteiensystems
Creators: name: Menzel, Ulrich
Publisher: name: Cramer
Year: 2019
Subjects: subject: Jahrbuch der BWG
subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: 320

description: Jahrbuch der Braunschweigischen Wissenschaftlichen Gesellschaft, vol. 2018Jahrbuch 2018 der Braunschweigischen Wissenschaftlichen Gesellschaft, vol. 2018, p. 281
Osmia distincta Cresson 1864
Creators: name: Zarrillo, Tracy A.
name: Stoner, Kimberly A.
name: Ascher, John S.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Osmia
Osmia distincta

description: Osmia distincta Cresson, 1864: 30 (Connecticut holotype).
Holotype. Female USA: Connecticut. E. Norton (USNM).
Notes: This species has been collected in habitats such as powerline ROW, wildlife management areas, pollinator gardens, and sandplain remnants in Connecticut.
description: Published as part of Zarrillo, Tracy A., Stoner, Kimberly A. & Ascher, John S., 2025, Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA), pp. 1-138 in Zootaxa 5586 (1) on page 132, DOI: 10.11646/zootaxa.5586.1.1, http://zenodo.org/record/14895883
SI: Hugouvieux-Cotte-Pattat et al. (2021) Figure 3 and Figure S4
Creators: name: Pritchard, Leighton
Publisher: name: figshare
Year: 2021
Subjects: subject: 60501 Bacteriology
subject: FOS: Biological sciences
subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences
subject: Computational Biology
subject: Evolutionary Biology
subject: 60408 Genomics
subject: Microbiology
subject: Pathology
subject: 60704 Plant Pathology

description: The complete analysis supporting figures 3 and S4 from the Hugouvieux-Cotte-Pattat et al. (2021) paper describing the genus Musicola. This phylogenomic analysis supports reclassification of Dickeya paradisiaca and formation of the novel genus Musicola.
Twisted connected sums and special Riemannian holonomy
Creators: name: Kovalev, Alexei
Publisher: name: arXiv
Year: 2000
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C25 (Primary); 53C21, 58J60 (Secondary)

description: We give a new, connected-sum-like construction of Riemannian metrics with special holonomy G_2 on compact 7-manifolds. The construction is based on a gluing theorem for appropriate elliptic partial differential equations. As a prerequisite, we also obtain asymptotically cylindrical Riemannian manifolds with holonomy SU(3) building up on the work of Tian and Yau. Examples of new topological types of compact 7-manifolds with holonomy G_2 are constructed using Fano 3-folds.
description: 35 pages; v2: some technical corrections and clarifications, more general and systematic treatment of the examples; v3: technical corrections; v4: final version, error corrected in the fundamental group calculations in examples
The effects of a revised $^7$Be e$^-$-capture rate on solar neutrino fluxes
Creators: name: Vescovi, D.
name: Piersanti, L.
name: Cristallo, S.
name: Busso, M.
name: Vissani, F.
name: Palmerini, S.
name: Simonucci, S.
name: Taioli, S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The electron-capture rate on $^7$Be is the main production channel for $^7$Li in several astrophysical environments. Theoretical evaluations have to account for not only the nuclear interaction, but also the processes in the plasma where $^7$Be ions and electrons interact. In the past decades several estimates were presented, pointing out that the theoretical uncertainty in the rate is in general of few percents. In the framework of fundamental solar physics, we consider here a recent evaluation for the $^7$Be+e$^-$ rate, not used up to now in the estimate of neutrino fluxes. We analysed the effects of the new assumptions on Standard Solar Models (SSMs) and compared the results obtained by adopting the revised $^7$Be+e$^-$ rate to those obtained by the one reported in a widely used compilation of reaction rates (ADE11). We found that new SSMs yield a maximum difference in the efficiency of the $^7$Be channel of about -4\% with respect to what is obtained with the previously adopted rate. This fact affects the production of neutrinos from $^8$B, increasing the relative flux up to a maximum of 2.7\%. Negligible variations are found for the physical and chemical properties of the computed solar models. The agreement with the SNO measurements of the neutral current component of the $^8$B neutrino flux is improved.
description: 7 pages, 3 figures, 4 tables. Accepted for the publication on A&A
Competitiveness of Kazakhstan’s agrifood systems: Opportunities and growth factors
Creators: name: Ayazbayeva, Gulnara
name: Symonenko, Olena
name: Sudibor, Olga
Publisher: name: International Journal on Food System Dynamics
Year: 2024
Subjects: Agribusiness; gross output; crop and animal husbandry; food industry; agricultural products; agro-industrial complex

description: The purpose of this study is the assessment of the competitiveness of the agro-industrial complex of Kazakhstan and the analysis of potential growth opportunities. Retrospective, dynamic, and structural analysis are the basis for assessing the current state of the agro-industrial sector. The analysis revealed weaknesses in the logistics infrastructure and a preponderance of antiquated and depreciated agricultural equipment, impeding production and quality. Despite the fact that investments were made easier by official support programmes, sector profitability remained poor. Modernising production assets, combining smallholder farms, and encouraging sustainable practices to boost long-term competitiveness are some of the major prospects found.
description: International Journal on Food System Dynamics, Vol 15, No 3 (2024): Country Issue: Kazakhstan
Absent Subsequences in Words
Creators: name: Kosche, Maria
name: Koß, Tore
name: Manea, Florin
name: Siemer, Stefan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: An absent factor of a string $w$ is a string $u$ which does not occur as a contiguous substring (a.k.a. factor) inside $w$. We extend this well-studied notion and define absent subsequences: a string $u$ is an absent subsequence of a string $w$ if $u$ does not occur as subsequence (a.k.a. scattered factor) inside $w$. Of particular interest to us are minimal absent subsequences, i.e., absent subsequences whose every subsequence is not absent, and shortest absent subsequences, i.e., absent subsequences of minimal length. We show a series of combinatorial and algorithmic results regarding these two notions. For instance: we give combinatorial characterisations of the sets of minimal and, respectively, shortest absent subsequences in a word, as well as compact representations of these sets; we show how we can test efficiently if a string is a shortest or minimal absent subsequence in a word, and we give efficient algorithms computing the lexicographically smallest absent subsequence of each kind; also, we show how a data structure for answering shortest absent subsequence-queries for the factors of a given string can be efficiently computed.
description: An extended abstract appeared in the proceedings of the 15th International Conference on Reachability Problems RP2021
Depressed prostaglandins and leukotrienes in veterans with Gulf War illness
Creators: name: Golomb, Beatrice Alexandra
name: Koslik, Hayley J.
name: Christians, Uwe
name: Ritchie, Janis
name: Wilson, Paul
name: Elkins, Nancy
name: Klawitter, Jelena
name: Klawitter, Jost
name: Smith, Dwight
name: Repine, John E.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Inorganic Chemistry

description: Background: There is need to understand biological markers and mechanisms in Gulf War illness (GWI). Goal: To examine whether and how eicosanoids – prostaglandins and leukotrienes – are altered in veterans with GWI. Methods: Seventy participants including 37 GWI and 33 healthy controls, shared exposure information, and had plasma eicosanoids assessed – prostaglandin F2 alpha (pgf2α), prostaglandin D2 (pgd2), leukotriene B4 (lb4) among others. Values were compared for GWI versus controls. Eicosanoid intercorrelations were compared in cases vs. controls. For the most significantly altered eicosanoid in GWI, exposure and symptom relations were assessed. Results: Prostaglandins and leukotrienes were depressed in GWI, strongest for pgf2α, then lb4. Eicosanoid intercorrelations differed in GWI vs. controls. Fuel-solvent, pesticide, radioactive chemicals and metal exposures related negatively to pgf2α; as, in GWI, did chemical attack and vaccines. Multivariate predictors included fuels-solvents and radioactive chemicals (negative); tetanus vaccine and herbicides (positive). Fuels-solvents and radioactive chemicals predicted lower pgf2α in cases, controls, and all participants controlled for case status. Lower pgf2α related to GWI “Kansas criteria” domains of pain, respiratory, and (borderline significantly) skin symptoms. Conclusion: Multiple eicosanoids are depressed in GWI, particularly pgf2α and lb4. Prior fuel-solvent exposures, radioactive chemicals, and (in GWI cases) vaccines were linked to lower pgf2α.
Questionnaire for the paper : "Generating requirements out of thin air: A Preliminary Study"
Creators: name: Iqbal, Tahira
name: Seyff, Norbert
name: Mendez, Daniel
Publisher: name: figshare
Year: 2019
Subjects: subject: 80703 Human Information Behaviour
subject: FOS: Media and communications
subject: Applied Computer Science

description: This questionnaire is part of our under review publication in workshop crowd@RE
title: Braunschweigische Anzeigen 85. Jahr 1829
Creators: name: :None
Publisher: name: Herzogliche Waisenhaus-Buchdruckerei
Year: 1829
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Braunschweigische Anzeigen
subject: 902

description: Braunschweigische Anzeigen: offizielles Regierungs- und Anzeigeblatt, vol. 85
The Nearby, Young, Argus Association: Membership, Age, and Dusty Debris Disks
Creators: name: Zuckerman, B.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The reality of a field Argus Association has been doubted in some papers in the literature. We apply Gaia DR2 data to stars previously suggested to be Argus members and conclude that a true association exists with age 40-50 Myr and containing many stars within 100 pc of Earth; Beta Leo and 49 Cet are two especially interesting members. Based on youth and proximity to Earth, Argus is one of the better nearby moving groups to target in direct imaging programs for dusty debris disks and young planets.
description: accepted at ApJ
Simple models of cooling flows
Creators: name: Kaiser, Christian R.
name: Binney, James J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A semi-analytic model of cluster cooling flows is presented. The model assumes that episodic nuclear activity followed by radiative cooling without mass-dropout cycles the cluster gas between a relatively homogeneous, nearly isothermal post-outburst state and a cuspy configuration in which a cooling catastrophe initiates the next nuclear outburst. Fitting the model to Chandra data for the Hydra cluster, a lower limit of $284\Myr$ until the next outburst of Hydra A is derived. Density, temperature and emission-measure profiles at several times prior to the cooling catastrophe are presented. It proves possible to fit the mass $M(σ)$ with entropy index $Pρ^{-γ}$ less than $σ$ to a simple power-law form, which is almost invariant as the cluster cools. We show that radiative cooling automatically establishes this power-law form if the entropy index was constant throughout the cluster gas at some early epoch or after an AGN activity cycle. To high precision, the central value of $σ$ decreases linearly in time. The fraction of clusters in a magnitude-limited sample that have gas cooler than $T$ is calculated, and is shown to be small for $T=2\keV$. Similarly, only 1 percent of clusters in such a sample contain gas with $Pρ^{-γ} < 2\keV\cm^2$. Entropy production in shocks is shown to be small. The entropy that is radiated from the cluster can be replaced if a few percent of the cluster gas passes through bubbles heated during an outburst of the AGN.
description: Accepted for publication by MNRAS, revised version to fit published version, now includes discussion of power-law mass distribution
Eudalaca stictigrapha
Creators: name: Mbata, Keith J.
name: Prins, Jurate De
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Hepialidae
Eudalaca
Eudalaca stictigrapha

description: Eudalaca stictigrapha (Hampson, 1910c)
COMMON NAME(S): Ghost moth or Ghost swift.
SYNONYM(S): None.
IUCN STATUS: Not Evaluated (NE).
DISTRIBUTION: Democratic Republic of Congo, Lesotho, South Africa, Zambia.
LOCALITY IN ZAMBIA: Type Locality is Serenji [sic = Serenje] District in Central Province.
LARVAL HOSTPLANT(S): Unknown.
SOURCES: De Prins & De Prins 2022; Hampson 1910c.
description: Published as part of Mbata, Keith J. & Prins, Jurate De, 2023, Annotated checklist of moths of Zambia (Insecta: Lepidoptera), pp. 1-503 in Zootaxa 5354 (1) on page 20, DOI: 10.11646/zootaxa.5354.1.1, http://zenodo.org/record/10130434
Innovative SMEs Open to Collaboration in Italian Regions
Creators: name: Leogrande, Angelo
Publisher: name: Zenodo
Year: 2024

description: The European Innovation Scoreboard (EIS) calculates the value of innovative SMEs open to collaboration with other enterprises or public organizations. This indicator consists of a ratio. The numerator comprises the number of small and medium-sized enterprises (SMEs) engaged in cooperation for innovation, meaning companies that have developed cooperation agreements on innovation activities with other companies or institutions in the three years preceding the survey. The denominator is the total number of SMEs. This indicator measures the degree of involvement of SMEs in cooperation for innovation. Complex innovations, particularly in the ICT sector, depend on the ability to draw from various sources of information and knowledge or to collaborate in developing an innovation. This indicator measures the flow of knowledge between public research entities and businesses, as well as between businesses themselves. The indicator is limited to SMEs since almost all large companies are involved in cooperation activities for innovation. The data refer to Italian regions for the period between 2018 and 2023.
Non-Fermi-liquid behavior and d-wave superconductivity near the charge-density-wave quantum critical point
Creators: name: Castellani, C.
name: Di Castro, C.
name: Grilli, M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A scenario is presented, in which the presence of a quantum critical point due to formation of incommensurate charge density waves accounts for the basic features of the high temperature superconducting cuprates, both in the normal and in the superconducting states. Specifically, the singular interaction arising close to this charge-driven quantum critical point gives rise to the non-Fermi liquid behavior universally found at optimal doping. This interaction is also responsible for d-wave Cooper pair formation with a superconducting critical temperature strongly dependent on doping in the overdoped region and with a plateau in the optimally doped region. In the underdoped region a temperature dependent pairing potential favors local pair formation without superconducting coherence, with a peculiar temperature dependence of the pseudogap and a non-trivial relation between the pairing temperature and the gap itself. This last property is in good qualitative agreement with so far unexplained features of the experiments.
description: 9 pages, 5 Postscript figures
Schwarzschild Space-Time in Gauge Theories of Gravity
Creators: name: Kawai, Toshiharu
name: Sakane, Eisaku
name: Tojo, Takashi
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In Poincaré gauge theory of gravity and in $\overline{\mbox{Poincaré}}$ gauge theory of gravity, we give the necessary and sufficient condition in order that the Schwarzschild space-time expressed in terms of the Schwarzschild coordinates is obtainable as a torsionless exact solution of gravitational field equations with a spinless point-like source having the energy-momentum density $\widetilde{\mbox{\boldmath $T$}}_μ^{~ν}(x) = - Mc^2 δ_μ^{~0} δ_0^{~ν} δ^{(3)}(\mbox{\boldmath $x$})$. Further, for the case when this condition is satisfied, the energy-momentum and the angular momentum of the Schwarzschild space-time are examined in their relations to the asymptotic forms of vierbein fields. We show, among other things, that asymptotic forms of vierbeins are restricted by requiring the equality of the active gravitational mass and the inertial mass. Conversely speaking, this equality is violated for a class of vierbeins giving the Schwarzschild metric.
description: 26 pages, LaTeX, uses amssymb.sty. To appear in Prog. Theor. Phys. 99 (1998)
title: Die Flechten des Nationalparks Harz
Creators: name: Kison, Hans-Ulrich
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2019
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig, Biologie
subject: Botanik
subject: Harz
subject: Nationalpark
subject: 580

description: Erforschung und Erhaltung der Phytodiversität: Festschrift zum 70. Geburtstag für Prof. Dr. Dietmar Brandes, p. 315
The Impact of Isospin Breaking on the Distribution of Transition Probabilities
Creators: name: Barbosa, C. I.
name: Guhr, T.
name: Harney, H. L.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Nuclear Theory (nucl-th)
subject: Chaotic Dynamics (nlin.CD)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: In the present paper we investigate the effect of symmetry breaking in the statistical distributions of reduced transition amplitudes and reduced transition probabilities. These quantities are easier to access experimentally than the components of the eigenvectors and were measured by Adams et al. for the electromagnetic transitions in ^{26}Al. We focus on isospin symmetry breaking described by a matrix model where both, the Hamiltonian and the electromagnetic operator, break the symmetry. The results show that for partial isospin conservation, the statistical distribution of the reduced transition probability can considerably deviate from the Porter-Thomas distribution.
description: 16 pages, 8 figures, submitted to PRE
Asymmetric dynamics of edge exchange spin waves in honeycomb nanoribbons with zigzag and bearded edges boundaries
Creators: name: Ghader, Doried
name: Khater, Antoine
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on the theoretical prediction of asymmetric edge spin waves, propagating in opposite directions on the edges of honeycomb nanoribbons with zigzag and bearded edges boundaries. The simultaneous propagation of edge spin waves in the same direction on both edges of these nanoribbons is hence predicted to be forbidden. These asymmetric edge exchange spin waves are analogous to the nonreciprocal surface spin waves reported in magnetic thin films. Their existence is related to the nontrivial symmetry underlying the nanoribbons under study. The edge and discretized bulk exchange spin waves are calculated in the long wavelength part of the Brillouin zone using the classical spin wave theory approach and appropriate boundary conditions. In the absence of an external magnetic field in our study, the asymmetric edge spin waves propagate with equal frequencies and opposite directions, since the energy dispersion relation is independent of the sign of the wavevector components in the long wavelength part of the Brillouin zone. The edge spin waves are characterized by linear dispersion relations for magnetically isotropic nanoribbons. Introducing magnetic anisotropy in the calculation significantly enhances the energy gap between the edge and bulk spin waves in both types of nanoribbons. Based on our calculation, the large energy gap allows separate excitation of bulk and edge modes as their energies are no more overlapping.
Formation of infinite loops for an interacting bosonic loop soup
Creators: name: Dickson, Matthew
name: Vogel, Quirin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K35 (Primary), 60G50 (Secondary)

description: We compute the limiting measure for the Feynman loop representation of the Bose gas for a non mean-field energy. As predicted in previous works, for high densities the limiting measure gives positive weight to random interlacements, indicating the quantum Bose--Einstein condensation. We prove that in many cases there is a shift in the critical density compared to the free/mean-field case, and that in these cases the density of the random interlacements has a jump-discontinuity at the critical point.
description: 36 pages, 6 figures
Neutral Hydrogen and Optical Observations of Edge-on Galaxies: Hunting for Warps
Creators: name: Garcia-Ruiz, I.
name: Sancisi, R.
name: Kuijken, K.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present 21-cm HI line and optical R-band observations for a sample of 26 edge-on galaxies. The HI observations were obtained with the Westerbork Synthesis Radio Telescope, and are part of the WHISP database (Westerbork HI Survey of Spiral and Irregular Galaxies). We present HI maps, optical images, and radial HI density profiles. We have also derived the rotation curves and studied the warping and lopsidedness of the HI disks. 20 out of the 26 galaxies of our sample are warped, confirming that warping of the HI disks is a very common phenomenon in disk galaxies. Indeed, we find that all galaxies that have an extended HI disk with respect to the optical are warped. The warping usually starts around the edge of the optical disk. The degree of warping varies considerably from galaxy to galaxy. Furthermore, many warps are asymmetric, as they show up in only one side of the disk or exhibit large differences in amplitude in the approaching and receding sides of the galaxy. These asymmetries are more pronounced in rich environments, which may indicate that tidal interactions are a source of warp asymmetry. A rich environment tends to produce larger warps as well. The presence of lopsidedness seems to be related to the presence of nearby companions.
description: To appear in Astronomy & Astrophysics
Spectral correlations in the crossover between GUE and Poisson regularity: on the identification of scales
Creators: name: Guhr, Thomas
name: Mueller-Groeling, Axel
Publisher: name: arXiv
Year: 1997
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Motivated by questions of present interest in nuclear and condensed matter physics we consider the superposition of a diagonal matrix with independent random entries and a GUE. The relative strength of the two contributions is determined by a parameter $λ$ suitably defined on the unfolded scale. Using results for the spectral two-point correlator of this model obtained in the framework of the supersymmetry method we focus attention on two different regimes. For $λ$ << 1 the correlations are given by Dawson's integral while for $λ$ >> 1 we derive a novel analytical formula for the two-point function. In both cases the energy scales, in units of the mean level spacing, at which deviations from pure GUE behavior become noticable can be identified. We also derive an exact expansion of the local level density for finite level number.
description: 15 pages, Revtex, no figures, to be published in special issue of J. Math. Phys. (1997)
Effect of a laser field in the confinement potential of two electrons in a double quantum dot
Creators: name: Maniero, A. M.
name: de Carvalho, C. R.
name: Prudente, F. V.
name: Jalbert, Ginette
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have studied a system consisted of two coupled quantum dots containing two electrons subjected by a laser field. The effect of the laser is described by the dressed-band approach involving the concept of the conduction/valence effective mass, valid far from resonance. The interaction between the electrons and the quantum dots is described by a phenomenological tridimensional potential, which simulates quantum dots in GaAs heterostructure. In this study we have employed the approach already presented in a previous work [Olavo et al., J. Phys. B: At. Mol. Opt. Phys. {\bf 49}, 145004 (2016)]. We have used a code based on the full interaction configuration method. We have employed as basis set the {\it Cartesian anisotropic Gaussian-type} orbitals which allows one to explore the confining characteristics of a potential due to their flexibility of using different exponents for each direction space. We present an analysis based on the energy levels of the singlet and triplet as function of the confinement parameters.
Macropis ciliata Patton 1880
Creators: name: Zarrillo, Tracy A.
name: Stoner, Kimberly A.
name: Ascher, John S.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Melittidae
Macropis
Macropis ciliata

description: Macropis ciliata Patton, 1880: 31. (Connecticut syntype).
Syntype. Male USA: Connecticut: New Haven Co.: “New Haven” “Waterbury”, June-July, W. H. Patton (lost?).
Notes: Males were described from individuals collected in New Haven County, Connecticut —5 from the town of New Haven collected on the flowers of northern dewberry (Rubus flagellaris [= R. villosus]) on 22 June, and another from the town of Waterbury collected on the flowers of gray dogwood (Cornus racemosa [= C. paniculata]) on 4 July (year of collection not specified in description). These syntypes are presumed lost. This species is the presumed host of Epeoloides pilosulus, is listed as threatened in Connecticut (Connecticut Department of Energy and Environmental Protection 2015b) and is currently a regional species of greatest conservation need in four eastern states in the United States: Connecticut, Massachusetts, New Jersey, and Maryland (United States Geological Survey 2015). The historical range of this species spans Wisconsin eastward to the province of Quebec, Canada and south to Georgia (Mitchell 1960). In Connecticut, this species has historically been detected in low numbers; however, in recent bee surveys spanning the years 2005–2017 it has been detected in seven locations in New London and Hartford Counties (n = 15).
description: Published as part of Zarrillo, Tracy A., Stoner, Kimberly A. & Ascher, John S., 2025, Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA), pp. 1-138 in Zootaxa 5586 (1) on page 134, DOI: 10.11646/zootaxa.5586.1.1, http://zenodo.org/record/14895883
Extremal problems of double stars
Creators: name: Győri, Ervin
name: Wang, Runze
name: Woolfson, Spencer
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C35

description: In a generalized Turán problem, two graphs $H$ and $F$ are given and the question is the maximum number of copies of $H$ in an $F$-free graph of order $n$. In this paper, we study the number of double stars $S_{k,l}$ in triangle-free graphs. We also study an opposite version of this question: what is the maximum number edges/triangles in graphs with double star type restrictions, which leads us to study two questions related to the extremal number of triangles or edges in graphs with degree-sum constraints over adjacent or non-adjacent vertices.
description: 18 pages, 4 figures
MARVEL Analysis of the Measured High-Resolution Rovibronic Spectra of 90Zr16O
Creators: name: McKemmish, Laura K
name: Borsovszky, Jasmin
name: Goodhew, Katie L
name: Sheppard, Samuel
name: Bennett, Aphra F V
name: Martin, Alfie D J
name: Singh, Amrik
name: Sturgeon, Callum A J
name: Furtenbacher, Tibor
name: Csaszar, Attila G
name: Tennyson, Jonathan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Zirconium oxide(ZrO) is an important astrophysical molecule that defines the S-star classification class for cool giant stars. Accurate, empirical rovibronic energy levels, with associated labels and uncertainties, are reported for 9 low-lying electronic states of the diatomic 90Zr16O molecule. These 8088 empirical energy levels are determined using the Marvel (Measured Active Rotational-Vibrational Energy Levels) algorithm with 23 317 input assigned transition frequencies, 22 549 of which were validated. A temperature-dependent partition function is presented alongside updated spectroscopic constants for the 9 low-lying electronic states.
Chaotic dynamics and superdiffusion in a Hamiltonian system with many degrees of freedom
Creators: name: Latora, V.
name: Rapisarda, A.
name: Ruffo, S.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We discuss recent results obtained for the Hamiltonian Mean Field model. The model describes a system of N fully-coupled particles in one dimension and shows a second-order phase transition from a clustered phase to a homogeneous one when the energy is increased. Strong chaos is found in correspondence to the critical point on top of a weak chaotic regime which characterizes the motion at low energies. For a small region around the critical point, we find anomalous (enhanced) diffusion and Lévy walks in a transient temporal regime before the system relaxes to equilibrium.
description: 7 pages, Latex, 6 figures included, Contributed paper to the Int. Conf. on "Statistical Mechanics and Strongly Correlated System", 2nd Giovanni Paladin Memorial, Rome 27-29 September 1999, submitted to Physica A
Wolfeniana U. B. Deshmukh 2022, nom. nov.
Creators: name: Deshmukh, Umakant Bhoopati
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Rubiaceae
Wolfeniana

description: Wolfeniana U.B.Deshmukh nom. nov.
 Basionym: Gillespiea Erwin & Rothwell in Canad. J. Bot., 67(10): 3064.1989 nom. illeg., (Art. 53.1 of ICN), non Gillespiea A.C.Sm. in Bull. Bernice P. Bishop Mus. 141: 158. 1936.
 Type: Wolfeniana randolphensis (Erwin & Rothwell) U.B. Deshmukh.
 Eponymy: The generic name honors Dr Jack Albert Wolfe (1936–2005) the United States Geological Survey paleobotanist and paleoclimatologist.
description: Published as part of Deshmukh, Umakant Bhoopati, 2022, Wolfeniana, a new replacement name for fossil Pteridophyte genus Gillespiea Erwin & Rothwell (Stauropteridales), pp. 249-250 in Phytotaxa 566 (2) on page 249, DOI: 10.11646/phytotaxa.566.2.11, http://zenodo.org/record/7119073