cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Index to Minutes of Meetings of the Executive Committee & the Board of Trustees, 1911-1946, "Al"
Creators: name: Carnegie Corporation Of New York
Publisher: name: Columbia University
Year: 2018
Subjects: Corporate meetings
Charitable uses, trusts, and foundations

description: The following microfilm is a copy of 5 x 8 Kardex cards hitherto used in the Cumulative Index to the Minutes of the Executive Committee and of the Board of Trustees of the Carnegie Corporation of New York, from the first meeting of the Trustees (November 10, 1911) through the 22nd meeting of the Executive Committee (September 17, 1946). The Cumulative Index was initiated during the early days of the Corporation when the offices of the President, the Secretary, and the Treasurer were separately organized, each with its own system of records. It was maintained by Durand R. Miller, first as secretary to the Secretary of the Corporation, James Bertram, and later as Record Clerk of the Corporation. The entries in the Cumulative Index are duplications of those recorded in the index of each bound volume of Minutes.
Maurice Lévy-Leboyer, Henri Morsel (Hrsg.), Histoire générale de l'électricité en France. Tome 2: L'Interconnexion et le marché 1919–1946, 1994
Creators: name: Soleymani, Dagmar
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 24 Nr. 3 (1997)
Stratification, segregation and mixing of granular materials in quasi-2D bounded heaps
Creators: name: Fan, Yi
name: Boukerkour, Youcef
name: Blanc, Thibault
name: Umbanhowar, Paul B.
name: Ottino, Julio M.
name: Lueptow, Richard M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Segregation and mixing of granular mixtures during heap formation have important consequences in industry and agriculture. This research investigates three different final particle configurations of bi-disperse granular mixtures -- stratified, segregated and mixed -- during filling of quasi-two dimensional silos. We consider a larger number and relatively wider range of control parameters than previous studies, including particle size ratio, flow rate, system size and heap rise velocity. The boundary between stratified and unstratified states is primarily controlled by the two-dimensional flow rate, with the critical flow rate for the transition depending weakly on particle size ratio and flowing layer length. In contrast, the transition from segregated to mixed states is controlled by the rise velocity of the heap, a control parameter not previously considered. The critical rise velocity for the transition depends strongly on the particle size ratio.
description: 13 pages, 14 figures. Submitted to Physical Review E
A quantum pseudodot system with two-dimensional pseudoharmonic potential under external magnetic and AB flux fields
Creators: name: Ikhdair, Sameer M.
name: Hamzavi, Majid
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using the Nikiforov-Uvarov (NU) method, the energy levels and the wave functions of an electron confined in a two-dimensional (2D) pseudoharmonic quantum dot are calculated under the influence of temperature and an external magnetic field inside dot and Aharonov-Bohm (AB) field inside a pseudodot. magnetic field and geometrical size of quantum pseudodot. The temperature dependence energy levels for GaAs semiconductor are also calculated. The exact solutions for energy eigenvalues and wave functions are computed as functions of the chemical potential parameters, applied magnetic field strength, AB flux field, magnetic quantum number and temperature. Analytical expression for the light interband absorption coefficient and absorption threshold frequency are found as functions of applied
description: 20 pages, 8 figures; Physica B: Condensed Matter (2012) (at press). arXiv admin note: substantial text overlap with arXiv:1111.2442
D1.9 Framework Alignment and Theory Update (ed. 2)
Creators: name: PoliRural
Publisher: name: Zenodo
Year: 2021
Subjects: Foresight
Evaluation
Rural Development
Stakeholder Engagement
Text Mining

description: D1.9 is the second deliverable in a series of three updates to come out of T1.3 Framework Alignment and Theory Update. This edition tracked the evolution of PoliRural in M13-M18 by focusing on three key areas: regional foresight, policy evaluation, and stakeholder engagement. Specifically, it took stock of adjustments made to the entire foresight framework, of the preparatory work that made it possible to use Semex, our text mining tool, for policy evaluation, and of changes to stakeholder mapping and management that were made to ensure a more representative and balanced engagement in the future.
 PoliRural's foresight framework has been completely revamped thanks to the input provided by CKA. The old present-future-present structure was replaced with a classic foresight model consisting of pre-foresight, foresight and post-foresight stages. Typical foresight activities and deliverables, which weren’t part of DoA, are now fully integrated into the formal WP tasks and reports.
 As to policy evaluation (T4.5), the new approach followed by pilots is more appropriate than the one initially recommended for this task (ex-ante) because here the regional teams focused on existing measures initiated and implemented by others, on policies that are still ongoing or are about to finish, and which have not been subject to any extensive evaluation yet e.g. LEADER. Later in the project, when PoliRural pilots start planning new measures for their region, an ex-ante approach will be introduced. A part of this will involving defining the KPIs and measures for monitoring progress.
 While carrying out T4.5 Perceived Effectiveness of Rural Interventions, the common framework prepared by JIIP ensured consistency with regard to policy selection, data collection and presentation of final results. Additionally, the evaluation exercise proceeded along two parallel tracks - one based on survey research, another on text mining - as required by DoA.
 Lastly, updates made to the stakeholder mapping methodology address the main shortcomings of the initial approach. There is now more clarity as to stakeholder types, gender, social group and their relationship to the project. Going forward, stakeholder engagement will benefit from the introduction of i) pragmatic practices aimed at balancing representation with relevance, and ii) scientific approaches aimed at ensuring sound data collection and analysis. For best results, stakeholder mapping and engagement approaches should be reviewed by members of the Advisory Board once it becomes operational.
Spatially Resolved Observations of the Bipolar Optical Outflow from the Brown Dwarf 2MASSJ12073347-3932540
Creators: name: Whelan, Emma
name: Ray, Tom
name: Comeron, Fernando
name: Bacciotti, Francesca
name: Kavanagh, Patrick
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Studies of brown dwarf (BD) outflows provide information pertinent to questions on BD formation, as well as allowing outflow mechanisms to be investigated at the lowest masses. Here new observations of the bipolar outflow from the 24 M$_{JUP}$ BD, 2MASSJ12073347-3932540 are presented. The outflow was originally identified through the spectro-astrometric analysis of the [OI]$λ$6300 emission line. Follow-up observations consisting of spectra and [SII], R-band and I-band images were obtained. The new spectra confirm the original results and are used to constrain the outflow PA at $\sim$ 65$^{\circ}$. The [OI]$λ$6300 emission line region is spatially resolved and the outflow is detected in the [SII] images. The detection is firstly in the form of an elongation of the point spread function along the direction of the outflow PA. Four faint knot-like features (labelled {\it A-D}) are also observed to the south-west of 2MASSJ12073347-3932540 along the same PA suggested by the spectra and the elongation in the PSF. Interestingly, {\it D}, the feature furthest from the source is bow-shaped with the apex pointing away from 2MASSJ12073347-3932540. A color-color analysis allows us to conclude that at least feature {\it D} is part of the outflow under investigation while {\it A} is likely a star or galaxy. Follow-up observations are needed to confirm the origin of {\it B} and {\it C}. This is a first for a BD, as BD optical outflows have to date only been detected using spectro-astrometry. This result also demonstrates for the first time that BD outflows can be collimated and episodic.
description: Accepted by ApJ, ref ApJ89096R1
A quasilinear problem with fast growing gradient
Creators: name: Bueno, Hamilton
name: Ercole, Grey
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35B09, 35J66, 35J70, 35J92

description: In this paper we consider the following Dirichlet problem for the $p$-Laplacian in the positive parameters $λ$ and $β$: [{{array} [c]{rcll}% -Δ_{p}u & = & λh(x,u)+βf(x,u,\nabla u) & \text{in}Ωu & = & 0 & \text{on}\partialΩ, {array}. \hfill] where $h,f$ are continuous nonlinearities satisfying $0\leqω_{1}(x)u^{q-1}\leq h(x,u)\leqω_{2}(x)u^{q-1}$ with $10$, and $Ω$ is a bounded domain of $\mathbb{R}^{N},$ $N\geq3.$ The functions $ω_{i}$, $1\leq i\leq3$, are nonnegative, continuous weights in $\barΩ$. We prove that there exists a region $\mathcal{D}$ in the $λβ$-plane where the Dirichlet problem has at least one positive solution. The novelty in this paper is that our result is valid for nonlinearities with growth higher than $p$ in the gradient variable.
Index to Minutes of Meetings of the Executive Committee & the Board of Trustees, 1911-1946, "All"
Creators: name: Carnegie Corporation Of New York
Publisher: name: Columbia University
Year: 2018
Subjects: Corporate meetings
Charitable uses, trusts, and foundations

description: The following microfilm is a copy of 5 x 8 Kardex cards hitherto used in the Cumulative Index to the Minutes of the Executive Committee and of the Board of Trustees of the Carnegie Corporation of New York, from the first meeting of the Trustees (November 10, 1911) through the 22nd meeting of the Executive Committee (September 17, 1946). The Cumulative Index was initiated during the early days of the Corporation when the offices of the President, the Secretary, and the Treasurer were separately organized, each with its own system of records. It was maintained by Durand R. Miller, first as secretary to the Secretary of the Corporation, James Bertram, and later as Record Clerk of the Corporation. The entries in the Cumulative Index are duplications of those recorded in the index of each bound volume of Minutes.
title: Spray drop measurements using depth from defocus
Creators: name: Zhou, Wu
name: Tropea, Cameron
name: Chen, Benting
name: Zhang, Yukun
name: Luo, Xu
name: Cai, Xiaoshu
Publisher: name: IOP Publishing
Year: 2021

description: Sprays are typically characterised by providing local drop size and velocity distributions and number density. The present work examines the possibility of obtaining such information using backlight photography, whereby two cameras are employed and the size and position of each imaged drop is obtained using a depth from defocus approach. A simple algorithm for estimating size and position from the two camera images is introduced and the sensitivity of this algorithm to various system parameters is investigated with simulations using synthetic images, measurements from a calibration facility, and measurements conducted in a sparse spray. Comparison measurements using the analysis of focused images are provided.
title: Citizen Science: Bürgerforschung in den Geistes- und Kulturwissenschaften
Creators: name: Pettibone, Lisa
name: Ziegler, David
Publisher: name: Computus Druck Satz & Verlag
Year: 2016
Subjects: subject: Citizen Science
subject: Bürgerwissenschaften
subject: Partizipation in der Wissenschaft
subject: Wissenschaft und Gesellschaft
subject: 700

description: Citizen Science ist derzeit in aller Munde, der Begriff wird aber v. a. mit Natur- und Umweltwissenschaften in Zusammenhang gebracht. Doch auch in den Geistes- und Kulturwissenschaften haben Forschungsaktivitäten Ehrenamtlicher eine lange Tradition. Im vorliegenden Artikel werden einerseits die Gründe für den aktuellen „Boom“ von Citizen Science erkundet, andererseits die Schnittmengen mit verwandten Konzepten wie „Public History“ oder der ehrenamtlichen Denkmalpflege sowie die besonderen Potentiale einer gemeinsamen Weiterentwicklung benannt.
description: Citizen science is on everyone’s lips, although the term is connected mainly with the natural and environmental sciences. At the same time, voluntary engagement in humanities research also has a long-standing tradition. This article discusses both the reasons for the current citizen science “boom” as well as connections to other concepts such as “public history” or voluntary monument preservation and the benefits of further cooperation.
description: Bürger Künste Wissenschaft: Citizen Science in Kultur und Geisteswissenschaften, p. 57
Adherence monitoring methods to measure virological failure in people living with HIV on long-term antiretroviral therapy in Uganda.
Creators: name: Okoboi, Stephen
name: Musaazi, Joseph
name: King, Rachel
name: Lippman, Sheri A
name: Kambugu, Andrew
name: Mujugira, Andrew
name: Izudi, Jonathan
name: Parkes-Ratanshi, Rosalind
name: Kiragga, Agnes N
name: Castelnuovo, Barbara
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: subject: HIV/AIDS
subject: Clinical Research
subject: Prevention
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Infection

description: Appointment keeping and self-report within 7-day or and 30-days recall periods are non-objective measures of antiretroviral treatment (ART) adherence. We assessed incidence of virological failure (VF), predictive performance and associations of these adherence measures with VF among adults on long-term ART. Data for persons initiated on ART between April 2004 and April 2005, enrolled in a long-term ART cohort at 10-years on ART (baseline) and followed until December 2021 was analyzed. VF was defined as two consecutives viral loads ≥1000 copies/ml at least within 3-months after enhanced adherence counselling. We estimated VF incidence using Kaplan-Meier and Cox-proportional hazards regression for associations between each adherence measure (analyzed as time-dependent annual values) and VF. The predictive performance of appointment keeping and self-reporting for identifying VF was assessed using receiver operating characteristic curves and reported as area under the curve (AUC). We included 900 of 1,000 participants without VF at baseline: median age was 47 years (Interquartile range: 41-51), 60% were women and 88% were virally suppressed. ART adherence was ≥95% for all three adherence measures. Twenty-one VF cases were observed with an incidence rate of 4.37 per 1000 person-years and incidence risk of 2.4% (95% CI: 1.6%-3.7%) over the 5-years of follow-up. Only 30-day self-report measure was associated with lower risk of VF, adjusted hazard ratio (aHR) = 0.14, 95% CI:0.05-0.37). Baseline CD4 count ≥200cells/ml was associated with lower VF for all adherence measures. The 30-day self-report measure demonstrated the highest predictive performance for VF (AUC = 0.751) compared to appointment keeping (AUC = 0.674), and 7-day self-report (AUC = 0.687). The incidence of virological failure in this study cohort was low. Whilst 30- day self-report was predictive, appointment keeping and 7-day self-reported adherence measures had low predictive performance in identifying VF. Viral load monitoring remains the gold standard for adherence monitoring and confirming HIV treatment response.
Index to Minutes of Meetings of the Executive Committee & the Board of Trustees, 1911-1946, "American-R"
Creators: name: Carnegie Corporation Of New York
Publisher: name: Columbia University
Year: 2018
Subjects: Corporate meetings
Charitable uses, trusts, and foundations

description: The following microfilm is a copy of 5 x 8 Kardex cards hitherto used in the Cumulative Index to the Minutes of the Executive Committee and of the Board of Trustees of the Carnegie Corporation of New York, from the first meeting of the Trustees (November 10, 1911) through the 22nd meeting of the Executive Committee (September 17, 1946). The Cumulative Index was initiated during the early days of the Corporation when the offices of the President, the Secretary, and the Treasurer were separately organized, each with its own system of records. It was maintained by Durand R. Miller, first as secretary to the Secretary of the Corporation, James Bertram, and later as Record Clerk of the Corporation. The entries in the Cumulative Index are duplications of those recorded in the index of each bound volume of Minutes.
A Scalar Wigner Theory for Polarized Light in Nonlinear Kerr Media
Creators: name: Hansson, T.
name: Wallin, E.
name: Brodin, G.
name: Marklund, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A scalar Wigner distribution function for describing polarized light is proposed in analogy with the treatment of spin variables in quantum kinetic theory. The formalism is applied to the propagation of circularly polarized light in nonlinear Kerr media and an extended phase space evolution equation is derived along with invariant quantities. We further consider modulation instability as well as the extension to partially coherent fields.
description: 6 pages
Solid-state electronic spin coherence time approaching one second
Creators: name: Bar-Gill, Nir
name: Pham, Linh M.
name: Jarmola, Andrejs
name: Budker, Dmitry
name: Walsworth, Ronald L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Solid-state electronic spin systems such as nitrogen-vacancy (NV) color centers in diamond are promising for applications of quantum information, sensing, and metrology. However, a key challenge for such solid-state systems is to realize a spin coherence time that is much longer than the time for quantum spin manipulation protocols. Here we demonstrate an improvement of more than two orders of magnitude in the spin coherence time ($T_2$) of NV centers compared to previous measurements: $T_2 \approx 0.5$ s at 77 K, which enables $\sim 10^7$ coherent NV spin manipulations before decoherence. We employed dynamical decoupling pulse sequences to suppress NV spin decoherence due to magnetic noise, and found that $T_2$ is limited to approximately half of the longitudinal spin relaxation time ($T_1$) over a wide range of temperatures, which we attribute to phonon-induced decoherence. Our results apply to ensembles of NV spins and do not depend on the optimal choice of a specific NV, which could advance quantum sensing, enable squeezing and many-body entanglement in solid-state spin ensembles, and open a path to simulating a wide range of driven, interaction-dominated quantum many-body Hamiltonians.
title: Citizen Science im Wikiversum
Creators: name: Kloppenburg, Julia
name: Schwarzkopf, Christopher
Publisher: name: Computus Druck Satz & Verlag
Year: 2016
Subjects: subject: Wikimedia
subject: Wikiversum
subject: Freies Wissen
subject: freie Lizenzen
subject: Community
subject: 700

description: Die Aktivitäten von Wikimedia umfassen weit mehr als die allseits bekannte Online-Enzyklopädie Wikipedia. Diese ist nicht nur für ihren Umfang und ihre Vielfalt bekannt, sondern vor allem dafür, dass ihre Entwicklung seit Beginn an von einer ehrenamtlichen Community umgesetzt und organisatorisch wie inhaltlich von dieser zunehmend professionalisiert wird. Auch die anderen Projekte von Wikimedia ba-sieren auf diesem Prinzip, Wissen für jeden frei zugänglich zu machen, welches von Freiwilligen zusammengetragen wird. Dabei zeigen die Projekte zum Kultur- und Wissenschaftsbereich, dass es auch hier eine Vielzahl an Bürgerinnen und Bürgern gibt, die sich in ihren Interessensbereichen engagieren und aktiv an Forschung teilhaben möchten. Gerade die Augenhöhe und der beidseitige Austausch zwischen ihnen und den Institutionen können dabei vorbildhaft für Citizen Science-Projekte in Kultur und Geisteswissenschaften sein.
description: The activities of Wikimedia include a much wider field than just the prominent digital encyclopedia Wikipedia that is not only well-known for its extent and wide range of topics, but also for its emergence, development and professionalisation by a voluntary community. Next to Wikipedia, all other projects of Wikimedia follow the same principles of making knowledge accessible for everybody by volunteers and under free licences. Projects from the fields of science, arts and culture show in particular that there are numerous citizens interested in these topics as well as in being part of related research. Especially the cooperation on eye level and the mutual exchange of ideas, knowledge and experiences can thus be exemplary for citizen science projects in arts and humanities.
description: Bürger Künste Wissenschaft: Citizen Science in Kultur und Geisteswissenschaften, p. 91
title: 30 Jahre Heimatforscherfortbildung in Niedersachsen. Bilanz und Ausblick
Creators: name: Schneider, Karl
name: Quell, Anna
Publisher: name: Computus Druck Satz & Verlag
Year: 2016
Subjects: subject: Heimatforschung
subject: Niedersachsen
subject: Qualifizierung
subject: Wissensaustausch
subject: außerakademischer Dialog
subject: 700

description: Regionale Forschung, besonders historische oder kulturhistorische Regionalforschung, wird häufig von sogenannten „Heimatforschern“ betrieben. In Niedersachsen geschieht dies in einer Vielzahl von unterschiedlichen Vereinen. Oftmals kennen die „Heimatforscher“ die Bestände von Archiven, haben Einblick in die private Überlieferung vor Ort und ein großes thematisches Fachwissen. Trotzdem gestaltet sich der Austausch sowohl von Seiten dieser versierten Laien als auch der universitären Regionalhistoriker oft als schwierig. Regional- und Lokalhistorisches Wissen geht dadurch zwangsläufig verloren. In Niedersachsen gibt es aber auch Erfahrungen anderer Art. Dort führte der Niedersächsische Heimatbund ab 1983 systematisch Fortbildungen für Heimatforscher durch. Sie führten von 1984–1995 zu einer Qualifizierung der Ehrenamtlichen und zu einem Austausch mit der universitären Wissenschaft. Neue Formate versuchen, an diese Arbeit anzuknüpfen, Wissenschaftler für die Bedeutung dieser Aufgabe zu sensibilisieren und neue, auch jüngere Zielgruppen für die Heimatforschung zu erschließen, die heute in Anbetracht sinkender Fördermittel wichtiger erscheinen denn je.
description: There is a multitude of different non-profit associations in Lower Saxony that engage in researching local history. This large number of associations and the differences in their approaches towards local history renders collaboration of associations, individual private researchers and professional historians difficult. Without a systematic exchange of professional and non-professional research, local knowledge is eventually lost. Workshops and seminars for non-professional researchers addressed this issue between 1984 and 1995 in order to establish closer collaboration of Universities and private researchers and a more fruitful exchange of knowledge between the two. New formats of collaboration are now reviving this endeavour to sensitize scientists of the importance of this task and to develop new and younger audiences for local history since in the light of declining funding opportunities for this research field new citizen scientists seem to be more important than ever.
description: Bürger Künste Wissenschaft: Citizen Science in Kultur und Geisteswissenschaften, p. 103
Heinrich Härke (Ed.), Archaeology, ideology, and society
Creators: name: Brather, Sebastian
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Rezension zu: Heinrich Härke (Ed.), Archaeology, ideology, and society. The German experience. Gesellschaften
und Staaten im Epochenwandel, Band 7. Peter Lang AG, Europäischer Verlag
der Wissenschaften. Frankfurt a.M., Berlin, Bern, Bruxelles, New York, Oxford, Wien
2000. ISBN 3-631-36707-4, UISBN 0-8204-4782-X, ISSN 0941-7389. 432 Seiten
mit 40 Textabbildungen und 7 Tabellen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 80 Nr. 1 (2002)
NAVIGATING COMPLEXITY: EXPLORING THE INTERPLAY BETWEEN MANAGEMENT STYLES, TECHNOLOGICAL CONTEXT, AND FIRM ECONOMIC PERFORMANCE IN MALI
Creators: name: Liang, Wei Zhang
name: Xin, Ming Chen
Publisher: name: AMERICAN SERIAL
Year: 2024
Subjects: Mali
Economic performance
Firm sustainability
Managerial adaptability
Contingency theory

description: Mali, a West African nation, grapples with persistent economic challenges stemming from military coups, political instability, and international conflicts, exacerbating its already precarious developmental trajectory. Despite two decades of implementing a global innovation-driven development policy, the country's economic progress remains contingent upon the resilience and evolution of its firms. However, the volatile operating environment presents formidable obstacles to the sustainability of these enterprises, forcing managers to navigate turbulence while striving to enhance economic performance. In Mali, economic conditions are characterized by complexity, ambiguity, and volatility, necessitating managerial adaptability and contingency measures for survival and success. This paper explores the intricate dynamics of economic performance generation within Malian firms, highlighting the pivotal role of managerial flexibility and adaptive strategies amidst persistent turbulence. Drawing on insights from upper echelons and contingency theories, it examines how Malian firms serve as a compelling case study, shedding light on the challenges and opportunities inherent in navigating unstable institutional and resource dependencies. By elucidating the interplay between managerial decision-making and environmental exigencies, this study offers valuable insights for practitioners and policymakers seeking to foster sustainable economic development in Mali and other contexts marked by volatility and uncertainty
Quark Confinement in Restricted SU(2) Gauge Theory
Creators: name: Deldar, Sedigheh
name: Mohamadnejad, Ahmad
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We apply Zwanziger formalism to Cho restricted $ SU(2) $ theory to obtain the potential in a static quark-antiquark pair. Cho restricted theory is a self-consistent subset of a non-Abelian $ SU(2) $ gauge theory which tries to describe the infrared regime of Yang-Mills gauge theories. In Zwanziger formalism, a local Lagrangian depending on two electric and magnetic gauge fields is constructed for the theories where both electric and magnetic charges exist. Based on this local Lagrangian the propagator and then the potential between quarks is calculated in two limits: $ m_{C} r \ll 1 $ and $ m_{C} r \gg 1$, where $ m_{C} $ is the mass of the dual gauge boson and $ r $ is the distance between the quark and the antiquark.
description: 2 Figures, 15 pages, Version accepted for publication in PRD
title: Bio-inspired neuromuscular reflex based hopping controller for a segmented robotic leg
Creators: name: Zhao, Guoping
name: Szymanski, Florian
name: Seyfarth, Andre
Publisher: name: IOP Publishing
Year: 2021

description: It has been shown that human-like hopping can be achieved by muscle reflex control in neuromechanical simulations. However, it is unclear if this concept is applicable and feasible for controlling a real robot. This paper presents a low-cost two-segmented robotic leg design and demonstrates the feasibility and the benefits of the bio-inspired neuromuscular reflex based control for hopping. Simulation models were developed to describe the dynamics of the real robot. Different neuromuscular reflex pathways were investigated with the simulation models. We found that stable hopping can be achieved with both positive muscle force and length feedback, and the hopping height can be controlled by modulating the muscle force feedback gains with the return maps. The force feedback neuromuscular reflex based controller is robust against body mass and ground impedance changes. Finally, we implemented the controller on the real robot to prove the feasibility of the proposed neuromuscular reflex based control idea. This paper demonstrates the neuromuscular reflex based control approach is feasible to implement and capable of achieving stable and robust hopping in a real robot. It provides a promising direction of controlling the legged robot to achieve robust dynamic motion in the future.
Index to Minutes of Meetings of the Executive Committee & the Board of Trustees, 1911-1946, "Ap"
Creators: name: Carnegie Corporation Of New York
Publisher: name: Columbia University
Year: 2018
Subjects: Corporate meetings
Charitable uses, trusts, and foundations

description: The following microfilm is a copy of 5 x 8 Kardex cards hitherto used in the Cumulative Index to the Minutes of the Executive Committee and of the Board of Trustees of the Carnegie Corporation of New York, from the first meeting of the Trustees (November 10, 1911) through the 22nd meeting of the Executive Committee (September 17, 1946). The Cumulative Index was initiated during the early days of the Corporation when the offices of the President, the Secretary, and the Treasurer were separately organized, each with its own system of records. It was maintained by Durand R. Miller, first as secretary to the Secretary of the Corporation, James Bertram, and later as Record Clerk of the Corporation. The entries in the Cumulative Index are duplications of those recorded in the index of each bound volume of Minutes.
The Margulis region and screw parabolic elements of bounded type
Creators: name: Erlandsson, Viveka
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M50, 30F40

description: Given a discrete subgroup of the isometries of n-dimensional hyperbolic space there is always a region kept precisely invariant under the stabilizer of a parabolic fixed point, called the Margulis region. While in dimensions 2 and 3 this region is a horoball, it has in general a more complicated shape due to the existence of screw parabolic elements in higher dimensions. In fact, P. Susskind has shown that in a discrete group acting on hyperbolic 4-space containing a screw parabolic element with irrational rotation, the corresponding Margulis region does not contain a horoball. In this paper we describe the asymptotic behavior of the boundary of the Margulis region when the irrational screw parabolic is of bounded type. As a corollary we show that the region is quasi-isometric to a horoball. Although Y. Kim has shown that two screw parabolic isometries with irrational rotation are not conjugate by any quasi-isometry of hyperbolic 4-space, this corollary implies that their corresponding Margulis regions (in the bounded type case) are quasi-isometric.
Olof Sundqvist, Freyr’s offspring. Rulers and religion in ancient Svea society
Creators: name: La Farge, Beatrice
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Rezension zu: Olof Sundqvist, Freyr’s offspring. Rulers and religion in ancient Svea society. Acta Universitatis
Upsaliensis. Historia Religionum 21. Uppsala University Library, Uppsala 2002.
ISBN 91-554-5263-9; ISSN 0439-2132. 420 Seiten mit 24 Abbildungen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 82 Nr. 2 (2004)
Homogeneous superconducting phase in TiN film : a complex impedance study
Creators: name: Diener, P.
name: Schellevis, H.
name: Baselmans, J. J. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The low frequency complex impedance of a high resistivity 92 μΩ cm and 100 nm thick TiN superconducting film has been measured via the transmission of several high sensitivity GHz microresonators, down to Tc/50. The temperature dependence of the kinetic inductance follows closely BCS local electrodynamics, with one well defined superconducting gap. This evidences the recovery of an homogeneous superconducting phase in TiN far from the disorder and composition driven transitions. Additionally, we observe a linearity between resonator quality factor and frequency temperature changes, which can be described by a two fluid model.
description: 5 pages, 4 figures, accepted in Appl. Phys. Lett
title: Aneignung und Teilhabe bei der Erforschung von Geschichte. Formen des Reenactments als Möglichkeiten der gesellschaftlichen Partizipation an Wissenschaft?
Creators: name: Sieber, Andrea
Publisher: name: Computus Druck Satz & Verlag
Year: 2016
Subjects: subject: Reenactment
subject: experimentelle Archäologie
subject: Aneignung
subject: Teilhabe
subject: 700

description: Experten aus den Bereichen Geschichtswissenschaften, Archäologie, Soziologie, Kulturanthropologie, Medienkommunikation und Regionalforschung tauschten sich während der Barcamp-Session „Reenactment als Citizen Science Format“ im Rahmen der Tagung „Bürger Künste Wissenschaft“ zu den Möglichkeiten und Grenzen von Reenactment in Citizen Science Projekten aus. Dabei wurde deutlich: Die Aneignung von Geschichte in der Bevölkerung wird zunehmend populärer. Unter dem Begriff „Reenactment“ oder auch „Living History“ gibt es eine große Bandbreite von Formaten, durch welche historische Ereignisse, Prozesse und Praktiken vergegenwärtigt werden. Der Beitrag stellt die verschiedenen Formen dieser interaktiven Geschichtsvermittlung und -forschung dar, skizziert ihre Unterschiede im Verhältnis zur historischen Faktenebene und setzt sie jeweils in Bezug zu einem wissenschaftlichen Erkenntnisanspruch. Es wird aufgezeigt, welche Formate von Reenactment für Citizen Science-Projekte in der Datengenerierung oder als Präsentation der Forschungsergebnisse im Sinne von science to public stimmig sein können.
description: There are several formats under the label of “living history”, which present historical events or practices. There are enormous differences between the formats—from the experimental archaeology with a high demand on scientific research, reflection and documentary to historic shows and live action role play with their entertainment aspect. The article shows the different focuses and shows which format might be suitable in Citizen Science projects for data generation or dissemination.
description: Bürger Künste Wissenschaft: Citizen Science in Kultur und Geisteswissenschaften, p. 139
Dark Matter Subhalos in the Ursa Minor Dwarf Galaxy
Creators: name: Lora, V.
name: Just, A.
name: Sanchez-Salcedo, F. J.
name: Grebel, E. K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Through numerical simulations, we study the dissolution timescale of the Ursa Minor cold stellar clump, due to the combination of phase-mixing and gravitational encounters with compact dark substructures in the halo of Ursa Minor. We compare two scenarios; one where the dark halo is made up by a smooth mass distribution of light particles and one where the halo contains 10% of its mass in the form of substructures (subhalos). In a smooth halo, the stellar clump survives for a Hubble time provided that the dark matter halo has a big core. In contrast, when the point-mass dark substructures are added, the clump survives barely for \sim 1.5 Gyr. These results suggest a strong test to the Λ-cold dark matter scenario at dwarf galaxy scale.
description: accepted for publication in ApJ
Janusz Czebreszuk/Marzena Szmyt (Eds), The Northeast Frontier of Bell Beakers
Creators: name: Sarauw, Torben
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Rezension zu: Janusz Czebreszuk/Marzena Szmyt (Eds), The Northeast Frontier of Bell Beakers. Proceedings
of the symposium held at the Adam Mickiewicz University, Poznań (Poland), May
26–29 2002. BAR International Series 1155, Oxford 2003. ISBN 1 84171 525 5. 286 Seiten
mit zahlreichen Abbildungen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 83 Nr. 2 (2005)
Index to Minutes of Meetings of the Executive Committee & the Board of Trustees, 1911-1946, "Be"
Creators: name: Carnegie Corporation Of New York
Publisher: name: Columbia University
Year: 2018
Subjects: Corporate meetings
Charitable uses, trusts, and foundations

description: The following microfilm is a copy of 5 x 8 Kardex cards hitherto used in the Cumulative Index to the Minutes of the Executive Committee and of the Board of Trustees of the Carnegie Corporation of New York, from the first meeting of the Trustees (November 10, 1911) through the 22nd meeting of the Executive Committee (September 17, 1946). The Cumulative Index was initiated during the early days of the Corporation when the offices of the President, the Secretary, and the Treasurer were separately organized, each with its own system of records. It was maintained by Durand R. Miller, first as secretary to the Secretary of the Corporation, James Bertram, and later as Record Clerk of the Corporation. The entries in the Cumulative Index are duplications of those recorded in the index of each bound volume of Minutes.
The tetralogy of Birkhoff theorems
Creators: name: Schmidt, Hans-Jürgen
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 83C57, 83C15

description: We classify the existent Birkhoff-type theorems into four classes: First, in field theory, the theorem states the absence of helicity 0- and spin 0-parts of the gravitational field. Second, in relativistic astrophysics, it is the statement that the gravitational far-field of a spherically symmetric star carries, apart from its mass, no information about the star; therefore, a radially oscillating star has a static gravitational far-field. Third, in mathematical physics, Birkhoff's theorem reads: up to singular exceptions of measure zero, the spherically symmetric solutions of Einstein's vacuum field equation with Lambda = 0 can be expressed by the Schwarzschild metric; for Lambda unequal 0, it is the Schwarzschild-de Sitter metric instead. Fourth, in differential geometry, any statement of the type: every member of a family of pseudo-Riemannian space-times has more isometries than expected from the original metric ansatz, carries the name Birkhoff-type theorem. Within the fourth of these classes we present some new results with further values of dimension and signature of the related spaces; including them are some counterexamples: families of space-times where no Birkhoff-type theorem is valid. These counterexamples further confirm the conjecture, that the Birkhoff-type theorems have their origin in the property, that the two eigenvalues of the Ricci tensor of two-dimensional pseudo-Riemannian spaces always coincide, a property not having an analogy in higher dimensions. Hence, Birkhoff-type theorems exist only for those physical situations which are reducible to two dimensions.
description: 26 pages, updated references, minor text changes, accepted by Gen. Relat. Grav
Ein verschollenes Bronzebecken aus "Braunschweig"
Creators: name: Höckmann, Olaf
Publisher: name: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz
Year: 2019

description: -
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 28 (1981)
title: Transport von Versuchstieren: Empfehlung Nr. 011/2023 des Nationalen Ausschusses TierSchG vom 14. April 2023
Creators: name: Bundesinstitut Für Risikobewertung
Publisher: name: Bundesbehörden und Einrichtungen im Geschäftsbereich des Bundesministeriums für Ernährung und Landwirtschaft (BMEL)
Year: 2023
Subjects: subject: 000

description: BfR-Stellungnahmen, vol. 2023, no. 011
Thanasis J. Papadopoulos, Mycenaean Achaea
Creators: name: Höckmann, Olaf
Publisher: name: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz
Year: 2019

description: Rezension zu: Thanasis J. Papadopoulos, Mycenaean Achaea. Studies in Mediterranean Archaeology 44 (Paul Åströms Förlag, Göteborg 1979). Textband: 241 S. Tafelband: 1 mehrfarbige Karte, 1 Farbtafel, 334 S., 358 meist mehrteilige Abb.
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 28 (1981)
Index to Minutes of Meetings of the Executive Committee & the Board of Trustees, 1911-1946, "Bi"
Creators: name: Carnegie Corporation Of New York
Publisher: name: Columbia University
Year: 2018
Subjects: Corporate meetings
Charitable uses, trusts, and foundations

description: The following microfilm is a copy of 5 x 8 Kardex cards hitherto used in the Cumulative Index to the Minutes of the Executive Committee and of the Board of Trustees of the Carnegie Corporation of New York, from the first meeting of the Trustees (November 10, 1911) through the 22nd meeting of the Executive Committee (September 17, 1946). The Cumulative Index was initiated during the early days of the Corporation when the offices of the President, the Secretary, and the Treasurer were separately organized, each with its own system of records. It was maintained by Durand R. Miller, first as secretary to the Secretary of the Corporation, James Bertram, and later as Record Clerk of the Corporation. The entries in the Cumulative Index are duplications of those recorded in the index of each bound volume of Minutes.
Frühe Funde aus Anatolien im Museum Altenessen, Essen, und in Privatbesitz
Creators: name: Höckmann, Olaf
Publisher: name: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz
Year: 2019

description: -
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 31 (1984)
The SARS-CoV-2 Alpha variant was associated with increased clinical severity of COVID-19 in Scotland: A genomics-based retrospective cohort analysis
Creators: name: Pascall, David J.
name: Vink, Elen
name: Blacow, Rachel
name: Bulteel, Naomi
name: Campbell, Alasdair
name: Campbell, Robyn
name: Clifford, Sarah
name: Davis, Chris
name: Da Silva Filipe, Ana
name: El Sakka, Noha
name: Fjodorova, Ludmila
name: Forrest, Ruth
name: Goldstein, Emily
name: Gunson, Rory
name: Haughney, John
name: Holden, Matthew T. G.
name: Honour, Patrick
name: Hughes, Joseph
name: James, Edward
name: Lewis, Tim
name: Lycett, Samantha
name: MacLean, Oscar
name: McHugh, Martin
name: Mollett, Guy
name: Onishi, Yusuke
name: Parcell, Ben
name: Ray, Surajit
name: Robertson, David L.
name: Shabaan, Sharif
name: Shepherd, James G.
name: Smollett, Katherine
name: Templeton, Kate
name: Wastnedge, Elizabeth
name: Wilkie, Craig
name: Williams, Thomas
name: Thomson, Emma C.
name: The COVID-19 Genomics UK (COG-UK) Consortium
Publisher: name: Apollo - University of Cambridge Repository
Year: 2023
Subjects: subject: Research Article
subject: People and places
subject: Physical sciences
subject: FOS: Physical sciences
subject: Biology and life sciences
subject: Medicine and health sciences
subject: Computer and information sciences
subject: FOS: Computer and information sciences

description: Funder: COG-UK
description: Objectives: The SARS-CoV-2 Alpha variant was associated with increased transmission relative to other variants present at the time of its emergence and several studies have shown an association between Alpha variant infection and increased hospitalisation and 28-day mortality. However, none have addressed the impact on maximum severity of illness in the general population classified by the level of respiratory support required, or death. We aimed to do this. Methods: In this retrospective multi-centre clinical cohort sub-study of the COG-UK consortium, 1475 samples from Scottish hospitalised and community cases collected between 1st November 2020 and 30th January 2021 were sequenced. We matched sequence data to clinical outcomes as the Alpha variant became dominant in Scotland and modelled the association between Alpha variant infection and severe disease using a 4-point scale of maximum severity by 28 days: 1. no respiratory support, 2. supplemental oxygen, 3. ventilation and 4. death. Results: Our cumulative generalised linear mixed model analyses found evidence (cumulative odds ratio: 1.40, 95% CI: 1.02, 1.93) of a positive association between increased clinical severity and lineage (Alpha variant versus pre-Alpha variants). Conclusions: The Alpha variant was associated with more severe clinical disease in the Scottish population than co-circulating lineages.
Fractional Maps and Fractional Attractors. Part I: $α$-Families of Maps
Creators: name: Edelman, Mark
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences
subject: 34A08

description: In this paper we present a uniform way to derive families of maps from the corresponding differential equations describing systems which experience periodic kicks. The families depend on a single parameter - the order of a differential equation $α> 0$. We investigate general properties of such families and how they vary with the increase in $α$ which represents increase in the space dimension and the memory of a system (increase in the weights of the earlier states). To demonstrate general properties of the $α$-families we use examples from physics (Standard $α$-family of maps) and population biology (Logistic $α$-family of maps). We show that with the increase in $α$ systems demonstrate more complex and chaotic behavior.
description: 10 pages 8 figures
title: Ανάλυση SWOT και στρατηγικές ψηφιακού μάρκετινγκ σε εκπτωτική αλυσίδα υπεραγορών
title: SWOT analysis, and digital marketing, in a discount super-market chain
Creators: name: Μαραγκουδακης Δημητριος
Publisher: name: Technical University of Crete
Year: 2021

description: Στην παρούσα εργασία γίνεται αναφορά στην ανάλυση SWOT και στις μεθόδους ψηφιακού μάρκετινγκ, που πρόκειται να ακολουθήσει μια νεοεισερχόμενη εταιρεία discount σούπερ μάρκετ στην Ελλάδα. Θα θελήσουμε να διερευνήσουμε ποιο είναι το νέο περιβάλλον των αλυσίδων αυτών, ιδίως μετά την τελευταία οικονομική κρίση. Η κρίση αυτή θα ελέγξουμε αν έχει μεταβάλλει τις συνήθειες των καταναλωτών. Θα κάνουμε μια αναδρομή στον χώρο των discount σούπερ μάρκετ και θα καθορίσουμε ποιοι είναι οι στόχοι της παρούσας εργασίας.
Στην συνέχεια, θα ορίσουμε τι είναι ψηφιακό μάρκετινγκ καθώς και ποια είναι τα πλεονεκτήματα και τα είδη που υπάρχουν. Θα κάνουμε μια ιστορική αναδρομή στο ψηφιακό μάρκετινγκ και πως αυτό εξελίχθηκε στον χρόνο ενώ παράλληλα θα προσπαθήσουμε να ορίσουμε πως μετράτε η αποτελεσματικότητα που έχει.
Στη πορεία της εργασίας, θα αναφερθούμε στις στρατηγικές του ψηφιακού μάρκετινγκ. Ποια είναι τα επίπεδα και οι παράγοντες επιρροής ενώ θα αναφερθούμε και στις διαδικασίες του στρατηγικού σχεδιασμού. Θα γίνει ορισμός της ανάλυσης SWOT και PEST, θα παρουσιαστεί το μίγμα μάρκετινγκ καθώς και η τμηματοποίηση, διαφοροποίησης και τοποθέτησης.
Επιπροσθέτως, θα παρουσιάσουμε τον όμιλο MERE. Θα πραγματοποιήσουμε την ανάλυση του εσωτερικού και του εξωτερικού περιβάλλοντος καθώς επίσης τους στόχους και την στρατηγική που έχει ο όμιλος με σκοπό να προβούμε στην ανάπτυξη του ψηφιακού σχεδίου μάρκετινγκ.
Τέλος, θα γίνει παράθεση των συμπερασμάτων και των μελλοντικών επεκτάσεων.