cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Towards Immersive Collaborative Sensemaking
Creators: name: Yang, Ying
name: Dwyer, Tim
name: Wybrow, Michael
name: Lee, Benjamin
name: Cordeil, Maxime
name: Billinghurst, Mark
name: Thomas, Bruce H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: When collaborating face-to-face, people commonly use the surfaces and spaces around them to perform sensemaking tasks, such as spatially organising documents, notes or images. However, when people collaborate remotely using desktop interfaces they no longer feel like they are sharing the same space. This limitation may be overcome through collaboration in immersive environments, which simulate the physical in-person experience. In this paper, we report on a between-groups study comparing collaborations on image organisation tasks, in an immersive Virtual Reality (VR) environment to more conventional desktop conferencing. Collecting data from 40 subjects in groups of four, we measured task performance, user behaviours, collaboration engagement and awareness. Overall, the VR and desktop interface resulted in similar speed, accuracy and social presence rating, but we observed more conversations and interaction with objects, and more equal contributions to the interaction from participants within groups in VR. We also identified differences in coordination and collaborative awareness behaviours between VR and desktop platforms. We report on a set of systematic measures for assessing VR collaborative experience and a new analysis tool that we have developed to capture user behaviours in collaborative setting. Finally, we provide design considerations and directions for future work.
description: Accepted at ACM ISS 2022
Energy decay for systems of semilinear wave equations with dissipative structure in two space dimensions
Creators: name: Katayama, Soichiro
name: Matsumura, Akitaka
name: Sunagawa, Hideaki
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35L71, 35B40

description: We consider the Cauchy problem for systems of semilinear wave equations in two space dimensions. We present a structural condition on the nonlinearity under which the energy decreases to zero as time tends to infinity if the Cauchy data are sufficiently small, smooth and compactly-supported.
description: 28 pages. arXiv admin note: text overlap with arXiv:1206.0066
A native measurement-based QAOA algorithm, applied to the MAX K-CUT problem
Creators: name: Proietti, Massimiliano
name: Cerocchi, Filippo
name: Dispenza, Massimiliano
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Photonic quantum computers, programmed within the framework of the measurement-based quantum computing (MBQC), currently concur with gate-based platforms in the race towards useful quantum advantage, and some algorithms emerged as main candidates to reach this goal in the near term. Yet, the majority of these algorithms are only expressed in the gate-based model of computation, which is incompatible with photonic platforms. Methods to translate gate-based algorithms into the MBQC framework exist, but they are not always optimal in terms of resource cost. In our work, we propose an MBQC algorithm to run the Quantum Approximate Optimization Algorithm (QAOA). Furthermore, we apply the MBQC-QAOA algorithm to the MAX $K$-CUT problem, working for all values of $K$, expressing the cost Hamiltonian and its constraints in a form easily implementable in the MBQC model. We conclude analyzing the resource-cost of our algorithm, compared to the case of translating a gate-based QAOA algorithm into MBQC rules showing up to a 30-fold improvement. With our work, we contribute to close the gap between gate-based and MBQC near-term algorithms, a gap not reflecting the current status of the hardware development.
description: Published on PRA
Dual-fermion approach to interacting disordered fermion systems
Creators: name: Yang, S. -X.
name: Haase, P.
name: Terletska, H.
name: Meng, Z. Y.
name: Pruschke, T.
name: Moreno, J.
name: Jarrell, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We generalize the recently introduced dual fermion (DF) formalism for disordered fermion systems by including the effect of interactions. For an interacting disordered system the contributions to the full vertex function have to be separated into elastic and inelastic scattering processes, and addressed differently when constructing the DF diagrams. By applying our approach to the Anderson-Falicov-Kimball model and systematically restoring the nonlocal correlations in the DF lattice calculation, we show a significant improvement over the Dynamical Mean-Field Theory and the Coherent Potential Approximation for both one-particle and two-particle quantities.
description: 16 pages, 17 figures
Accurate Weak Lensing of Standard Candles. II. Measuring sigma8 with Supernovae
Creators: name: Quartin, Miguel
name: Marra, Valerio
name: Amendola, Luca
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Soon the number of type Ia supernova (SN) measurements should exceed 100,000. Understanding the effect of weak lensing by matter structures on the supernova brightness will then be more important than ever. Although SN lensing is usually seen as a source of systematic noise, we will show that it can be in fact turned into signal. More precisely, the non-Gaussianity introduced by lensing in the SN Hubble diagram dispersion depends rather sensitively on the amplitude sigma8 of the matter power spectrum. By exploiting this relation, we are able to predict constraints on sigma8 of 7% (3%) for a catalog of 100,000 (500,000) SNe of average magnitude error 0.12 without having to assume that such intrinsic dispersion is known a priori. The intrinsic dispersion has been assumed to be Gaussian; possible intrinsic non-Gaussianities in the dataset (due to the SN themselves and/or to other transients) could be potentially dealt with by means of additional nuisance parameters describing higher moments of the intrinsic dispersion distribution function. This method is independent of and complementary to the standard methods based on CMB, cosmic shear or cluster abundance observables.
description: 12 pages, 9 figures. Accepted for publication in PRD. Minor changes to match the published version
Young Star-Forming Complexes in the Ring of the S0 galaxy NGC 4324
Creators: name: Proshina, I. S.
name: Moiseev, A. V.
name: Sil'chenko, O. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the results of our study of starforming regions in the lenticular galaxy NGC 4324. During a complex analysis of multiwavelength observational data -- the narrow-band emission-line images obtained with the 2.5-m telescope at the Caucasus Mountain Observatory of the Sternberg Astronomical Institute of the Moscow State University and the archival images in the broad bands of the SDSS, GALEX and WISE surveys -- we have detected young starforming complexes (clumps) located in the inner ring of the lenticular galaxy NGC 4324, and we have established a regular pattern of their distribution along the ring, which, nevertheless, changes with time (with age of starforming regions). We suggest several possible evolutionary paths of the lenticular galaxy NGC 4324, of which the accretion of gas-rich satellites or giant clouds (the so-called minor merging) is the most probable one.
description: A slightly edited version of the paper which to be published in issue no.3 (2022) of the Astronomy Letters. 14 pages, 10 figures
SRG/eROSITA X-ray shadowing study of giant molecular clouds
Creators: name: Yeung, Michael C. H.
name: Freyberg, Michael J.
name: Ponti, Gabriele
name: Dennerl, Konrad
name: Sasaki, Manami
name: Strong, Andy
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: SRG/eROSITA is situated in a halo orbit around L2 where the highly variable solar wind charge exchange (SWCX) emission from Earth's magnetosheath is expected to be negligible. The soft X-ray foreground emissions from the local hot bubble (LHB) and the remaining heliospheric SWCX emissions could be studied in unprecedented detail with eROSITA All-Sky Survey (eRASS) data in a 6-month cadence and better spectral resolution than ROSAT. We aim to use eRASS data of the sight lines towards three giant molecular clouds away from the Galactic plane to isolate and study the soft X-ray diffuse foreground emission. These X-ray shadows will serve as calibration baselines for the future three-dimensional structural study of the LHB. We conducted spectral analysis on the diffuse X-ray spectra of these clouds from the first four eRASSs to estimate and separate the heliospheric SWCX contribution from the LHB emission. We find the density of the LHB to be independent of the sight line with $n_e \sim 4 \times 10^{-3}\,$cm$^{-3}$, but not the temperature. We report a lower temperature of $kT_{\mathrm{LHB}}=0.084\pm0.004\,$keV towards Chamaeleon$~$II & III (Cha$~$II & III) than Ophiuchus (Oph) and Corona Australis (CrA), in which we measured $0.102\pm0.006$ and $0.112\pm0.009\,$keV, respectively. We measured the emission measure of the LHB to be $\sim 2\times10^{-3}\,$cm$^{-6}\,$pc at medium Galactic latitudes ($|b| \sim 20^{\circ}$). A monotonic increase in the SWCX contribution has been observed since the start of 2020, coincidental with the beginning of solar cycle 25. For Oph, SWCX has dominated the LHB in the $0.3$-$0.7\,$keV band intensity since eRASS2. We observed lower SWCX contributions in Cha$~$II & III and CrA, consistent with the expected decreasing solar wind ion density at high heliographic latitudes.
description: 22 pages, 15 figures. Accepted for publication in A&A
Mapping the Proton's Fluctuating Waistline
Creators: name: Coleman-Smith, Christopher E
name: Müller, Berndt
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss a mechanism for the apparently universal scaling in the high-multiplicity tail of charged particle distributions for high energy nuclear collisions. We argue that this scaling behavior originates from rare fluctuations of the nucleon density. We discuss a pair of simple models of proton shape fluctuations. A "fat" proton with a size of 3 fm occurs with observable frequency. In light of this result, collective flow behavior in the ensuing nuclear interaction seems feasible. We discuss the influence of these models on the large $x$ structure of the proton and the likely influences on the distribution of initial state spatial eccentricities $ε_{n}$.
description: 10 Pages, 15 Figures
The Relationship Between Burnout Operators with the Functions of Family Tehran Banking Melli Iran Bank in 2015
Creators: name: Heydari, Mohammad
name: Moghaddam, Matineh
name: Danai, Habibollah
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: In this study, the relationship between burnout and family functions of the Melli Iran Bank staff will be studied. A number of employees within the organization using appropriate scientific methods as the samples were selected by detailed questionnaire and the appropriate data is collected burnout and family functions. The method used descriptive statistical population used for this study consisted of 314 bank loan officers in branches of Melli Iran Bank of Tehran province and all the officials at the bank for >5 years of service at Melli Iran Bank branches in Tehran. They are married and men constitute the study population. The Maslach Burnout Inventory in the end internal to 0/90 alpha emotional exhaustion, depersonalization and low personal accomplishment Cronbach alpha of 0/79 and inventory by 0/71 within the last family to solve the problem 0/70, emotional response 0/51, touch 0/70, 0/69 affective involvement, roles, 0/59, 0/68 behavior is controlled. The results indicate that the hypothesis that included the relationship between burnout and 6, the family functioning, problem solving, communication, roles, affective responsiveness, affective fusion there was a significant relationship between behavior and the correlation was negative. The burnout is high; the functions within the family will be in trouble.
Cosmology with hybrid expansion law: scalar field reconstruction of cosmic history and observational constraints
Creators: name: Akarsu, Ozgur
name: Kumar, Suresh
name: Myrzakulov, R.
name: Sami, M.
name: Xu, Lixin
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper, we consider a simple form of expansion history of Universe referred to as the hybrid expansion law - a product of power-law and exponential type of functions. The ansatz by construction mimics the power-law and de Sitter cosmologies as special cases but also provides an elegant description of the transition from deceleration to cosmic acceleration. We point out the Brans-Dicke realization of the cosmic history under consideration. We construct potentials for quintessence, phantom and tachyon fields, which can give rise to the hybrid expansion law in general relativity. We investigate observational constraints on the model with hybrid expansion law applied to late time acceleration as well as to early universe a la nucleosynthesis.
description: 18 pages, 4 figures, 5 tables; text reorganized; minor clarifications added; matches the version to appear in JCAP
UNVEILING THE BUTTERFLY EFFECT - THE PROFOUND IMPACT OF EARLY EDUCATION ON INDIVIDUAL AND SOCIETAL DEVELOPMENT
Creators: name: Brandl, Edenilson
Publisher: name: Zenodo
Year: 2023
Subjects: Early education
Butterfly Effect
Developmental psychology
Cognitive development
Socio-emotional development
Educational disparities
Parental engagement
Socioeconomic disadvantage
Neurobiological influences
Systemic interventions

description: This comprehensive exploration delves into the intricate web of influences that early education weaves on cognitive, social, and emotional development. Drawing from developmental psychology, neurobiology, and chaos theory, we unveil the Butterfly Effect within educational contexts—emphasizing the profound and lasting consequences of seemingly minor variations in the quality and accessibility of early learning experiences. Scientifically grounded, this article elucidates the interconnectedness of cognitive and socio-emotional domains, highlighting the transformative potential of early education in shaping resilient individuals and fostering societal well-being. Examining the implications of educational disparities, parental engagement, and the role of early education in breaking the cycle of socioeconomic disadvantage, this research-driven narrative underscores the need for informed interventions and systemic changes to create equitable and thriving educational environments.
 
Diese umfassende Untersuchung befasst sich mit dem komplexen Netz von Einflüssen, die die frühe Bildung auf die kognitive, soziale und emotionale Entwicklung webt. Basierend auf Entwicklungspsychologie, Neurobiologie und Chaostheorie enthüllen wir den Schmetterlingseffekt in Bildungskontexten und betonen die tiefgreifenden und dauerhaften Folgen scheinbar geringfügiger Unterschiede in der Qualität und Zugänglichkeit früher Lernerfahrungen. Dieser wissenschaftlich fundierte Artikel erläutert die Vernetzung kognitiver und sozioemotionaler Bereiche und unterstreicht das transformative Potenzial der Früherziehung bei der Bildung widerstandsfähiger Individuen und der Förderung des gesellschaftlichen Wohlbefindens. Diese forschungsbasierte Erzählung untersucht die Auswirkungen von Bildungsunterschieden, elterlichem Engagement und die Rolle der frühen Bildung bei der Durchbrechung des Kreislaufs sozioökonomischer Benachteiligung und unterstreicht die Notwendigkeit fundierter Interventionen und systemischer Veränderungen, um gerechte und florierende Bildungsumgebungen zu schaffen.
Comparison of different automatic solutions for resection cavity segmentation in postoperative MRI volumes including longitudinal acquisitions
Creators: name: Canalini, Luca
name: Klein, Jan
name: de Barros, Nuno Pedrosa
name: Sima, Diana Maria
name: Miller, Dorothea
name: Hahn, Horst
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In this work, we compare five deep learning solutions to automatically segment the resection cavity in postoperative MRI. The proposed methods are based on the same 3D U-Net architecture. We use a dataset of postoperative MRI volumes, each including four MRI sequences and the ground truth of the corresponding resection cavity. Four solutions are trained with a different MRI sequence. Besides, a method designed with all the available sequences is also presented. Our experiments show that the method trained only with the T1 weighted contrast-enhanced MRI sequence achieves the best results, with a median DICE index of 0.81.
The MOG Weak Field approximation II. Observational test of Chandra X-ray Clusters
Creators: name: Moffat, J. W.
name: Rahvar, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply the weak field approximation limit of the covariant Scalar-Tensor-Vector Gravity (STVG) theory, so-called MOdified gravity (MOG), to the dynamics of clusters of galaxies by using only baryonic matter. The MOG effective gravitational potential in the weak field approximation is composed of an attractive Newtonian term and a repulsive Yukawa term with two parameters $α$ and $μ$. The numerical values of these parameters have been obtained by fitting the predicted rotation curves of galaxies to observational data, yielding the best fit result: $α= 8.89 \pm 0.34$ and $μ= 0.042\pm 0.004$ kpc$^{-1}$~\cite{rah13}. We extend the observational test of this theory to clusters of galaxies, using data for the ionized gas and the temperature profile of nearby clusters obtained by the Chandra X-ray telescope. Using the MOG virial theorem for clusters, we compare the mass profiles of clusters from observation and theory for eleven clusters. The theoretical mass profiles for the inner parts of clusters exceed the observational data. However, the observational data for the inner parts of clusters (i.e., $r<0.1 r_{500}$) is scattered, but at distances larger than $\sim 300$ kpc, the observed and predicted mass profiles converge. Our results indicate that MOG as a theory of modified gravity is compatible with the observational data from the the solar system to Mega parsec scales without invoking dark matter.
description: 9 pages, 3 figures
title: Zur Frage von Stellenbesetzungen an deutschen Universitäten: Einschätzungen und Ergänzungen zu Heinrich Härkes „’The Good, the Bad and the Ugly’?“
Creators: name: Samida, Stefanie
Publisher: name: University Library Heidelberg
Year: 2013

description: Bezugnehmend auf den Beitrag Heinrich Härkes (2006) werden Einschätzungen und Ergänzungen zu den derzeitigen Verfahrensweisen von Stellenbesetzungen sowohl von Hochschulprofessuren als auch des wissenschaftlichen Nachwuchses
in Deutschland gegeben. Dazu wird aus der Sicht eines Außenstehenden zum einen ein aktuelles Beispiel angeführt, das die gegenwärtigen Mechanismen und Tücken des deutschen Berufungsverfahrens verdeutlicht; zum anderen wird darüber hinaus ein Blick auf die Praxis der Stellenvergabe in dem Bereich des universitären Systems geworfen, der speziell den wissenschaftlichen Nachwuchs betrifft.
description: Referring to Heinrich Härke’s (2006) contribution this article provides additional information on the current system of appointing university professors and junior staff in Germany. In discussing a recent example of an appointment for a professorship at a major German university from an outsider’s perspective certain mechanisms and perils of the system are being addressed. Moreover, some personal experiences serve to illustrate contemporary practices of recruiting junior staff.
Efficient recursive algorithms for functionals based on higher order derivatives of the multivariate Gaussian density
Creators: name: Chacón, José E.
name: Duong, Tarn
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computation (stat.CO)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 15A24, 65F30, 62E10, 62G05, 62H05

description: Many developments in Mathematics involve the computation of higher order derivatives of Gaussian density functions. The analysis of univariate Gaussian random variables is a well-established field whereas the analysis of their multivariate counterparts consists of a body of results which are more dispersed. These latter results generally fall into two main categories: theoretical expressions which reveal the deep structure of the problem, or computational algorithms which can mask the connections with closely related problems. In this paper, we unify existing results and develop new results in a framework which is both conceptually cogent and computationally efficient. We focus on the underlying connections between higher order derivatives of Gaussian density functions, the expected value of products of quadratic forms in Gaussian random variables, and V-statistics of degree two based on Gaussian density functions. These three sets of results are combined into an analysis of non-parametric data smoothers.
description: 30 pages, 1 figure
title: Susanne Sievers: Manching – Die Keltenstadt Führer zu archäologischen Denkmälern. Oberbayern 3, 2003
Creators: name: Waldhauser, Jiři
Publisher: name: University Library Heidelberg
Year: 2013

description: Rezension zu: Susanne Sievers: Manching – Die Keltenstadt Führer zu archäologischen Denkmälern. Oberbayern 3. Herausgegeben von der Archäologischen Staatssammlung - Museum für Vor- und Frühgeschichte -, dem Bayerischen Landesamt für Denkmalpfl ege und der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts. Konrad Theiss-Verlag, Stuttgart 2003. Format 14 x 21 cm, 158 S., 143 Abb., überwiegend farbige Abb., Karten, Pläne, Rekonstruktionszeichnungen. ISBN 3-8062-1765-3.
title: Vol 30, No 2 (2007): Archäologische Informationen
Creators: name: DGUF E.V.
Publisher: name: University Library Heidelberg
Year: 2013

description: Archäologie als Beruf
description: Archäologie als Beruf
description: Titel
 Impressum
 editorial
 Inhalt
 Archäologische Berichte / Nachrichten der Redaktion...8
 Redaktionsrichtlinien für die Archäologische Informationen / Rezensionsangebote / Adressen der Vorstandsmitglieder und der Beiräte der DGUF...9-13
 Bestelliste Archäologische Informationen...14
 Studium der Archäologie – und was dann? oder auch Gibt es ein (lebenswertes) Leben nach dem Archäologiestudium?...29-38
 Archäologie als Beruf: Eine Befragung unter Mitgliedern der Deutschen Gesellschaft für Ur- und Frühgeschichte...39-52
 Wo sind die Nachweise für mesolithischen Ackerbau in Mitteleuropa? Zum Diskussionsbeitrag von W. Schön und B. Gehlen in Archäologische Informationen 29, 1&2, 127-128...53-57
 Eine Stellungnahme zur Darstellung des 'Archäologischen' in den Medien – Formen der Zusammenarbeit von Wissenschaft und Wissenschaftsjournalismus, Verweis auf allgemeingültige Normen journalistischer Ethik, Geschäfte und was in der Archäologie [...]...59-66
 Making History. Bericht zur Podiumsdiskussion „Lebendige Wissenschaft oder verdeckte Propaganda? Germanendarstellung zwischen experimenteller Geschichtsforschung und völkischem Gedankengut“...67-71
 Neues zur Himmelsscheibe von Nebra. Eine komplexe geometrische Konstruktion...81-87
 Bericht über die 21. Tagung des Arbeitskreises Tonpfeifen vom 26. bis 28. April 2007 in Gouda/NL...89-92
 Andreas Vogel: Die merowingischen Funde aus Andernach (Kr. Mayen-Koblenz),2006...93-96
 Irina Görner: Die Mittel- und Spätbronzezeit zwischen Mannheim und Karlsruhe, 2004...97-98
 Stefanie Samida: Wissenschaftskommunikation im Internet. Neue Medien in der Archäologie, 2006...99-100
 Untersuchungen zur Stratigraphie, Fundverteilung und zum Fundspektrum der mittleren Ertebøllekultur in Ostholstein: Die Nachgrabungen in Grube-Rosenhof aus den Jahren 2001 und 2002...107-110
 Eine Graduiertenschule als Brücke zwischen Natur- und Kulturwissenschaften für ArchäologInnen: „Human Development in Landscapes“...27-28
description: Archäologie als Beruf: Eine Befragung unter Mitgliedern der Deutschen Gesellschaft für Ur- und Frühgeschichte...39-52
 Wo sind die Nachweise für mesolithischen Ackerbau in Mitteleuropa? Zum Diskussionsbeitrag von W. Schön und B. Gehlen in Archäologische Informationen 29, 1&2, 127-128...53-57
 Eine Stellungnahme zur Darstellung des  in den Medien – Formen der Zusammenarbeit von Wissenschaft und Wissenschaftsjournalismus, Verweis auf allgemeingültige Normen journalistischer Ethik, Geschäfte und was in der Archäologie noch zu tun...59-66
 Neues zur Himmelsscheibe von Nebra. Eine komplexe geometrische Konstruktion...81-87
 Untersuchungen zur Stratigraphie, Fundverteilung und zum Fundspektrum der mittleren Ertebøllekultur in Ostholstein: Die Nachgrabungen in Grube-Rosenhof aus den Jahren 2001 und 2002...107-110
title: Eine Stellungnahme zur Darstellung des in den Medien – Formen der Zusammenarbeit von Wissenschaft und Wissenschaftsjournalismus, Verweis auf allgemeingültige Normen journalistischer Ethik, Geschäfte und was in der Archäologie noch zu tun
Creators: name: Yeşilyurt, Metin
Publisher: name: University Library Heidelberg
Year: 2013

description: Die Menschheit hat sich schon immer für ihre Vergangenheit interessiert. Dieses Interesse will auch entgegnet werden. Da die breite Masse nur über die Medien zu erreichen ist, wird in den Medien auch viel über die Vergangenheit erzählt. Dabei soll, so die Meinung, das Interesse durch Unterhaltung befriedigt werden. Entsprechend Unterhaltsames wird auch präsentiert. Einige Kreise möchten auch Profi t daraus schlagen. „Wie es wirklich gewesen ist“, scheint nicht so wichtig. Wie soll die Einzelwissenschaft, die für die Erforschung der Vergangenheit des Menschen zuständig und für die diesbezügliche Aufklärung der Menschheit verantwortlich ist, darauf reagieren? In diesem Beitrag wird zur Darstellung des archäologischen Forschungsphänomens in den Medien Stellung genommen. Dabei gilt die Kritik nicht nur bestimmten journalistischen Kreisen, die auf allgemeingültige Normen journalistischer Ethik verwiesen werden, sondern auch der Archäologie.
description: Mankind was always interested in its past. This interest wants to be also answered. Because the mass media is the best way to reach many people, there are a lot of storys about the past in the media. According to the general opinion this interest should be settled through entertainment. Some people want also to make profi t out of it. “How did it really happen” seemed not to be very important. How should archeology, which is responsible for the study of the humans past, react to this situation? This article will take up a position concerning the presentation of the archeological research phenomenon in the media. The criticism thereby does not only apply to certain journalists, which are referred to generally accepted standards of journalistic ethics, but also to the archaeology.
Arithmetic dynamics on smooth cubic surfaces
Creators: name: Vishkautsan, Solomon
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37P35, 37P55, 37P05

description: We study dynamical systems induced by birational automorphisms on smooth cubic surfaces defined over a number field $K$. In particular we are interested in the product of non-commuting birational Geiser involutions of the cubic surface. We present results describing the sets of $K$ and $\bar{K}$-periodic points of the system, and give a necessary and sufficient condition for a dynamical local-global property called strong residual periodicity. Finally, we give a dynamical result relating to the Mordell--Weil problem on cubic surfaces.
description: 22 pages changes in v2: * major streamlining + many fixes to typos * correction to Corollary in Section 8
A Quantum Graph Approach to Metamaterial Design
Creators: name: Lawrie, Tristan
name: Tanner, Gregor
name: Chronopoulos, Dimitrios
Publisher: name: arXiv
Year: 2023
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mathematical Physics (math-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Since the turn of the century, metamaterials have gained a large amount of attention due to their potential for possessing highly nontrivial and exotic properties such as cloaking or perfect lensing. There has been a great push to create reliable mathematical models that accurately describe the required material composition. Here, we consider a quantum graph approach to metamaterial design. An infnite square periodic quantum graph, constructed from vertices and edges, acts as a paradigm for a 2D metamaterial. Wave transport occurs along the edges with vertices acting as scatterers modelling sub-wavelength resonant elements. These resonant elements are constructed with the help of fnite quantum graphs attached to each vertex of the lattice with customisable properties controlled by a unitary scattering matrix. The metamaterial properties are understood and engineered by manipulating the band diagram of the periodic structure. The engineered properties are then demonstrated in terms of the refection and transmission behaviour of Gaussian beam solutions at an interface between two diferent metamaterials. We extend this treatment to N layered metamaterials using the Transfer Matrix Method. We demonstrate both positive and negative refraction and beam steering. Our proposed quantum graph modelling technique is very fexible and can be easily adjusted making it an ideal design tool for creating metamaterials with exotic band diagram properties or testing promising multi-layer set ups and wave steering efects
Modularity and integral points on moduli schemes
Creators: name: von Känel, Rafael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: The purpose of this paper is to give some new Diophantine applications of modularity results. We use the Shimura-Taniyama conjecture to prove effective finiteness results for integral points on moduli schemes of elliptic curves. For several fundamental Diophantine problems (e.g. $S$-unit and Mordell equations), this gives an effective method which does not rely on Diophantine approximation or transcendence techniques. We also combine Faltings' method with Serre's modularity conjecture, isogeny estimates and results from Arakelov theory, to establish the effective Shafarevich conjecture for abelian varieties of (product) GL$_2$-type. In particular, we open the way for the effective study of integral points on certain higher dimensional moduli schemes.
description: Comments are always very welcome, v2 added remarks in Sections 1.1.1, 7.2.2 and 9.3.2
Design and Expected Performance of the IceCube-Gen2 Surface Array and its Radio Component (ARENA2022)
Creators: name: Schröder, Frank G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: IceCube-Gen2, the next generation of the IceCube Neutrino Observatory at the South Pole, will consist of three co-located arrays: a deep Optical Array and a more shallow and larger Radio Array for neutrino detection in the ice, and a Surface Array above the footprint of the Optical Array. The Surface Array will be comprised of hybrid stations featuring elevated radio antennas and scintillation detectors, following the design of a prototype station successfully operating at the South Pole since 2020. Besides providing a veto for neutrino detection, the Surface Array will make IceCube-Gen2 a unique laboratory for cosmic-ray air showers. Compared to the current IceCube detector with its IceTop surface array, the aperture for coincident air-shower measurements detected by both, the deep optical and surface arrays, will increase by about a factor of 30. In addition to particle physics questions, such as the production of PeV muons and neutrinos in prompt decays, these surface-deep coincidences will be used to target astrophysical questions of the most energetic Galactic cosmic rays. The combination of particle and radio measurements at the surface and high-energy muons measured in the ice promises unprecedented accuracy for the mass composition in the energy range of the presumed Galactic-to-extragalactic transition - complementing the multimessenger science case of IceCube-Gen2. This proceeding provides an overview of the IceCube-Gen2 Surface Array and, in particular, its radio component.
description: Proceeding of ARENA 2022
Where angular momentum goes in a precessing black hole binary
Creators: name: Lousto, Carlos O.
name: Zlochower, Yosef
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We evolve a set of 32 equal-mass black-hole binaries with collinear spins (with intrinsic spin magnitudes $|\vec{S}_{1,2}/m^2_{1,2}|=0.8$) to study the effects of precession in the highly nonlinear plunge and merger regimes. We compare the direction of the instantaneous radiated angular momentum, $\hat{δJ}_{\rm rad}(t)$, to the directions of the total angular momentum, $\hat{J}(t)$, and the orbital angular momentum, $\hat{L}(t)$. We find that $\hat{δJ}_{\rm rad}(t)$ approximately follows $\hat{L}$ throughout the evolution. During the orbital evolution and merger, we observe that the angle between $\vec{L}$ and total spin $\vec{S}$ is approximately conserved to within $1^\circ$, which allows us to propose and test models for the merger remnant's mass and spin. For instance, we verify that the \hangup effect is the dominant effect and largely explains the observed total energy and angular momentum radiated by these precessing systems. We also verify that the total angular momentum, which significantly decreases in magnitude during the inspiral, varies in direction by less than $\sim 5^\circ$. The maximum variation in the direction of $\vec J$ occurs when the spins are nearly antialigned with the orbital angular momentum. Based on our results, we conjecture that transitional precession, which would lead to large variations in the direction of $\vec J$, is not possible for similar-mass binaries and would require a mass ratio $m_1/m_2\lesssim1/4$.
description: Updated to published version
Discussion about a Standard Definition of the Signal-to-Noise Ratio (SNR) for Radio Signals of ultra-high-energy Particles (ARENA2022)
Creators: name: Schröder, Frank G.
name: Connolly, Amy L.
name: Huege, Tim
name: Rehman, Abdul
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Signal-to-noise ratios are a widely used concept for astroparticle radio detectors, such as air-shower radio arrays for cosmic-ray measurements or detectors searching for radio signals induced by neutrino interactions in ice. Nonetheless, no common standards or methods are established for the determination of the signal-to-noise ratio: values cannot be compared between experiments, and for the same signal and noise, various methods differ by large factors on the signal-to-noise ratio. This was the motivation to discuss a community-specific standardization at the ARENA conference 2022. No agreement on a common method to calculate signal-to-noise ratios was reached, however, awareness was raised that signal-to-noise ratios need to be well defined in any publications. This includes providing sufficient information on the procedure used to determine the signal-to-noise ratio, in addition to simply stating the formula. Even when using the same definition of the signal-to-noise ratio, there is still a significant dependence on the procedure of calculation, e.g., the signal-to-noise ratio of waveforms containing only background can vary significantly depending on the size of the time interval used as signal search window. To facilitate the interpretation of any signal-to-noise ratios in a specific study, the recommendation is to also state the mean value of the signal-to-noise ratio that the used method yields when applied to noise used in the study, e.g., the radio background measured by the corresponding experiment.
description: Proceedings of ARENA 2022
Jalilian-Marian, Iancu, McLerran, Weigert, Leonidov, Kovner evolution at next to leading order
Creators: name: Kovner, Alex
name: Lublinsky, Michael
name: Mulian, Yair
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Jalilian-Marian,Iancu, McLerran, Weigert, Leonidov, Kovner (JIMWLK) Hamiltonian for high energy evolution of QCD amplitudes is presented at the next-to-leading order accuracy in $α_s$. The form of the Hamiltonian is deduced from the symmetries and the structure of the hadronic light cone wavefunction and by comparing the rapidity evolution of the quark dipole and the three-quark singlet states with results available in the literature. The next-to-leading corrections should allow for more robust phenomenological applications of perturbative saturation approach.
description: 5 pages, an explanatory appendix added. Few minor corrections. Published version
Pallet Detection from Synthetic Data Using Game Engines
Creators: name: Naidoo, Jouveer
name: Bates, Nicholas
name: Gee, Trevor
name: Nejati, Mahla
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This research sets out to assess the viability of using game engines to generate synthetic training data for machine learning in the context of pallet segmentation. Using synthetic data has been proven in prior research to be a viable means of training neural networks and saves hours of manual labour due to the reduced need for manual image annotation. Machine vision for pallet detection can benefit from synthetic data as the industry increases the development of autonomous warehousing technologies. As per our methodology, we developed a tool capable of automatically generating large amounts of annotated training data from 3D models at pixel-perfect accuracy and a much faster rate than manual approaches. Regarding image segmentation, a Mask R-CNN pipeline was used, which achieved an AP50 of 86% for individual pallets.
description: 9 Pages, 10 Figures
Search for a habitable terrestrial planet transiting the nearby red dwarf GJ 1214
Creators: name: Gillon, M.
name: Demory, B. -O.
name: Madhusudhan, N.
name: Deming, D.
name: Seager, S.
name: Zsom, A.
name: Knutson, H. A.
name: Lanotte, A. A.
name: Bonfils, X.
name: Desert, J. -M.
name: Delrez, L.
name: Jehin, E.
name: Fraine, J. D.
name: Magain, P.
name: Triaud, A. H. M. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: High-precision eclipse spectrophotometry of transiting terrestrial exoplanets represents a promising path for the first atmospheric characterizations of habitable worlds and the search for life outside our solar system. The detection of terrestrial planets transiting nearby late-type M-dwarfs could make this approach applicable within the next decade, with soon-to-come general facilities. In this context, we previously identified GJ 1214 as a high-priority target for a transit search, as the transit probability of a habitable planet orbiting this nearby M4.5 dwarf would be significantly enhanced by the transiting nature of GJ 1214 b, the super-Earth already known to orbit the star. Based on this observation, we have set up an ambitious high-precision photometric monitoring of GJ 1214 with the Spitzer Space Telescope to probe the inner part of its habitable zone in search of a transiting planet as small as Mars. We present here the results of this transit search. Unfortunately, we did not detect any other transiting planets. Assuming that GJ 1214 hosts a habitable planet larger than Mars that has an orbital period smaller than 20.9 days, our global analysis of the whole Spitzer dataset leads to an a posteriori no-transit probability of ~ 98%. Our analysis allows us to significantly improve the characterization of GJ 1214 b, to measure its occultation depth to be 70+-35 ppm at 4.5 microns, and to constrain it to be smaller than 205ppm (3-sigma upper limit) at 3.6 microns. In agreement with the many transmission measurements published so far for GJ 1214 b, these emission measurements are consistent with both a metal-rich and a cloudy hydrogen-rich atmosphere.
description: 14 pages, 10 figures. This second version of the manuscript was accepted for publication in A&A on 03/12/2013
title: Bericht über die gemeinsame Sitzung von AG Neolithikum und AG Bronzezeit im Rahmen der Jahrestagung des Mittel- und Ostdeutschen Verbandes für Altertumsforschung e.V. in Greifswald (23.-25.03.2009)
Creators: name: Doppler, Thomas
name: Ramminger, Britta
name: Schimmelpfennig, Dirk
Publisher: name: University Library Heidelberg
Year: 2013

description: [nicht vorhanden]
Undoing the twist: the Hořava limit of Einstein-aether
Creators: name: Jacobson, Ted
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that Hořava gravity can be obtained from Einstein-aether theory in the limit that the twist coupling constant goes to infinity, while holding fixed the expansion, shear and acceleration couplings. This limit helps to clarify the relation between the two theories, and allows Hořava results to be obtained from Einstein-aether ones. The limit is illustrated with several examples, including rotating black hole equations, PPN parameters, and radiation rates from binary systems.
description: 5 pages; v2: added discussion of inferences from the general form of the action, changed normalization of expansion coupling coefficient to simplify formulas, nearly coincides with PRD version
Bimodal multistability during perceptual detection in the ventral premotor cortex
Creators: name: Andrade-Ortega, Bernardo
name: Parra, Sergio
name: Zainos, Antonio
name: Díaz, Héctor
name: Romo, Ranulfo
name: Bayones, Lucas
name: Rossi-Pool, Roman
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Networks and dynamical systems

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Population Dynamics and Network Behaviour of ON- and OFF-cells in the Rostral Ventral Medulla
Creators: name: Ashworth, Carl
name: De Preter, Caitlynn C.
name: Martenson, Melissa E.
name: Shi, Zhigang
name: Heinricher, Mary M.
name: Mancini, Flavia
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Networks and dynamical systems

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Look how they have grown: Non-destructive Leaf Detection and Size Estimation of Tomato Plants for 3D Growth Monitoring
Creators: name: Xing, Yuning
name: Pham, Dexter
name: Williams, Henry
name: Smith, David
name: Ahn, Ho Seok
name: Lim, JongYoon
name: MacDonald, Bruce A.
name: Nejati, Mahla
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Smart farming is a growing field as technology advances. Plant characteristics are crucial indicators for monitoring plant growth. Research has been done to estimate characteristics like leaf area index, leaf disease, and plant height. However, few methods have been applied to non-destructive measurements of leaf size. In this paper, an automated non-destructive imaged-based measuring system is presented, which uses 2D and 3D data obtained using a Zivid 3D camera, creating 3D virtual representations (digital twins) of the tomato plants. Leaves are detected from corresponding 2D RGB images and mapped to their 3D point cloud using the detected leaf masks, which then pass the leaf point cloud to the plane fitting algorithm to extract the leaf size to provide data for growth monitoring. The performance of the measurement platform has been measured through a comprehensive trial on real-world tomato plants with quantified performance metrics compared to ground truth measurements. Three tomato leaf and height datasets (including 50+ 3D point cloud files of tomato plants) were collected and open-sourced in this project. The proposed leaf size estimation method demonstrates an RMSE value of 4.47mm and an R^2 value of 0.87. The overall measurement system (leaf detection and size estimation algorithms combine) delivers an RMSE value of 8.13mm and an R^2 value of 0.899.
description: 10 Pages, 10 Figures
Clifford-Klein forms and a-hyperbolic rank
Creators: name: Bochenski, Maciej
name: Tralle, Aleksy
Publisher: name: arXiv
Year: 2013
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 22E40, 22E46

description: The porpose of this article is to introduce and investigate properties of a tool (the a-hyperbolic rank) which enables us to obtain new examples of homogeneous spaces G/H which admit and do not admit almost compact Clifford-Klein forms. We achieve this goal by exploring in greater detail the technique of adjoint orbits developed by Okuda combined with the well-known conditions of Benoist. We find easy-to-check conditions on G and H expressed directly in terms of the Satake diagrams of the corresponding Lie algebras, in cases when G is a real form of a complex Lie group of types A, D or E6. One of the advantages of this approach is the fact that we don't need to know the embedding of H into G. Using the a-hyperbolic rank we also show that the homogeneous space G/H of reductive type of the real form of E6 (of the IV type) admits compact Clifford-Klein forms if and only if H is compact. Inspired by the work of Okuda on symmetric spaces G/H we classify all 3-symmetric spaces admitting almost compact Clifford-Klein forms.
description: Slight change of the title and numerous corrections suggested by the referee of IMRN, appears in International Mathematics Research Notices, 2014
Accelerating bio-plausible spiking simulations on the Graphcore IPU
Creators: name: Schöfmann, Catherine M.
name: Finkbeiner, Jan
name: Kunkel, Susanne
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Networks and dynamical systems

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de