cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Mechanical properties of jammed granulate metamaterials
Creators: name: Pollet, Julian
Publisher: name: Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Year: 2025
Subjects: subject: granular matter, jamming, metamaterial, bending beam

description: This thesis investigates the mechanical properties of jammed-granulate metamaterials, which utilize granular jamming, a phenomenon where loose granular particles transition into a rigid, load-bearing structure using vacuum and overpressure. The study examines how vacuum and overpressure actuation influence the stiffness and strength of metamaterial beams encapsulating different granular particles within flexible membranes. The study uses a four-point bending setup measuring deflection and load to reveal that the mechanical properties can be modified when using a vacuum or overpressure actuation, with varying lattice structures showing differences in mechanical behavior. The findings highlight the potential for developing adaptable biomedical devices with patient-specific mechanical properties, such as granular support mattresses used for patients with spinal injuries.
description: In dieser Arbeit werden die mechanischen Eigenschaften von Metamaterialien mit verklemmten Partikeln untersucht, die sich die Verklemmung von Partikeln zunutze machen - ein Phänomen, bei dem lose Partikel durch Vakuum und Überdruck in eine starre, tragende Struktur übergehen. In der Studie wird untersucht, wie Vakuum und Überdruck die Steifigkeit und Festigkeit von Metamaterialien beeinflussen, die verschiedene Partikel in flexible Membranen einschließen. Die Studie verwendet einen Vier-Punkt-Biegeversuch, bei dem Durchbiegung und Belastung gemessen werden, und zeigt, dass die mechanischen Eigenschaften durch die Verwendung von Vakuum oder Überdruck modifiziert werden können, wobei unterschiedliche Gitterstrukturen Unterschiede im mechanischen Verhalten bewirken. Die Ergebnisse zeigen das Potenzial für die Entwicklung anpassungsfähiger medizinischer Geräte mit patientenspezifischen mechanischen Eigenschaften, wie z.B. granulare Stützmatratzen für Patienten mit Wirbelsäulenverletzungen.
description: Proceedings of the Institute for Multiscale Simulation
A day of archaeology in the peatlands of Ireland
Creators: name: Mount, Charles
Publisher: name: Archaeology Data Service
Year: 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Calculation of Cu/Ta interface electron transmission and effect on conductivity in nanoscale interconnect technology
Creators: name: Feldman, Baruch
name: Dunham, Scott T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Resistivity augmentation in nanoscale metal interconnects is a performance limiting factor in integrated circuits. Here we present calculations of electron scattering and transmission at the interface between Cu interconnects and their barrier layers, in this case Ta. We also present a semiclassical model to predict the technological impact of this scattering and find that a barrier layer can significantly decrease conductivity, consistent with previously published measurements.
description: To appear in Appl. Phys. Lett., Nov. 2009. Replaced with version accepted for publication, clarifies discussion of semiclassical model. Conclusions unchanged
title: Multimillionaire Matchmaker: An Inside Look At CEO Succession Planning
Creators: name: Larcker, David F.
name: Tayan, Brian
Publisher: name: Stanford University Graduate School of Business
Year: 2010

description: This case takes an inside look at CEO succession planning at Energy Corp. The case provides an overview of various models of succession planning, including external search, COO appointment, a horse race, and the inside-outside model. The case then outlines the process by which Energy Corp chooses to identify a successor. Readers of the case are expected to evaluate Energy Corp’s effectiveness, and discuss the various risks of succession planning and how they can be mitigated.
Ancient concrete? Really?
Creators: name: Murgatroyd, Jennifer
Publisher: name: Archaeology Data Service
Year: 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Wirksamer Preis auf CO2 plus Klimadividende: Der smarte Weg zur Klimarettung oder politisch riskant?
Creators: name: Wolfsteiner, Andreas
Publisher: name: Zenodo
Year: 2021
Subjects: Klimaschutzinstrumente
CO2-Preis
Klimadividende
EU-ETS
BEHG
nEHS
CO2-Abgabe
CO2-Steuer
Emissionshandel
fee and dividend

description: Thesen des Diskussionspapieres: Eine CO2-Bepreisung als zentrales Instrument, um die Dekarbonisierung zu steuern, wäre äußerst hilfreich.
 Ein EU-Emissionshandel für alle CO2-Emissionen, der mit einem Paris-kompatiblen Emissionspfad unterlegt ist, könnte dies leisten. Durch eine Pro-Kopf-Ausschüttung der Einnahmen und weitere zielgenaue sozialpolitische Maßnahmen, kann eine solche CO2-Bepreisung auch politisch zu einem Erfolgsmodell werden. Bestimmte industrielle Prozesse, wie z.B. die Stahlproduktion, müssen gesondert betrachtet werden.
Electron transport in polycyclic hydrocarbon molecules: A study of shot noise contribution to the power spectrum
Creators: name: Maiti, Santanu K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study electron transport in polycyclic hydrocarbon molecules attached to two semi-infinite one-dimensional metallic electrodes by the use of Green's function formalism. Parametric calculations based on the tight-binding framework are given to investigate the transport properties through such molecular bridges. In this context we also discuss noise power of current fluctuations and focus our attention on the shot noise contribution to the power spectrum. The electron transport properties are significantly influenced by (a) length of the molecule, (b) molecule-electrode interface geometry and (c) molecular coupling strength to the electrodes.
description: 10 pages, 7 figures
The Sounds of an Historic Graveyard in East Cork, Ireland
Creators: name: Tierney, John
Publisher: name: Archaeology Data Service
Year: 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
An investigation of the boundary layer behaviour on the blading of a single-stage axial-flow compressor
Creators: name: Walker, GJ
Publisher: name: University Of Tasmania
Year: 2023

description: Observations of the boundary layer behaviour on the blading of a single-stage axial-flow compressor are described : detailed measurements were carried out with hot wire, surface visualisation, and surface pitot tube techniques, and the presence of extensive regions of laminar flow was established. The behaviour of the laminar and turbulent boundary layers, and of separated laminar flow regions are reported. A new correlation is developed to describe the boundary layer transition behaviour, and the effects of pressure gradient, Reynolds number, and free stream turbulence on transition are discussed. A new turbulent skin friction law for conditions of large positive pressure gradient is developed, and the problem of the minimum Reynolds number for turbulent flow under a pressure gradient is re-examined. Various existing methods of calculating the turbulent boundary layer are examined and their success in predicting the boundary layer development on a stationary blade of the research compressor is evaluated. The application of the experimental results to the design and performance analysis of axial-flow turbo-machine blading is discussed. A family of surface velocity distributions giving unseparated flow over the suction surface of an axial-flow compressor blade is derived, and their computed performance is analysed. In conclusion, problems needing further investigation are outlined.
Quantum field theory on quantum graphs and application to their conductance
Creators: name: Ragoucy, E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct a bosonic quantum field on a general quantum graph. Consistency of the construction leads to the calculation of the total scattering matrix of the graph. This matrix is equivalent to the one already proposed using generalized star product approach. We give several examples and show how they generalize some of the scattering matrices computed in the mathematical or condensed matter physics litterature. Then, we apply the construction for the calculation of the conductance of graphs, within a small distance approximation. The consistency of the approximation is proved by direct comparison with the exact calculation for the `tadpole' graph.
description: 32 pages; misprints in tree graph corrected; proofs of consistency and unitarity added
Historic graveyards and community archaeology in Ireland
Creators: name: Tierney, John
Publisher: name: Archaeology Data Service
Year: 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Wirksamer Preis auf CO2 plus Klimadividende: Der smarte Weg zur Klimarettung oder politisch riskant?
Creators: name: Wolfsteiner, Andreas
Publisher: name: Zenodo
Year: 2021
Subjects: Klimaschutzinstrumente
CO2-Preis
Klimadividende
EU-ETS
BEHG
nEHS
CO2-Abgabe
CO2-Steuer
Emissionshandel
fee and dividend

description: Thesen des Diskussionspapieres: Eine CO2-Bepreisung als zentrales Instrument, um den Dekarbonisierungsprozess und die Einhaltung der Reduktionsziele zu steuern, wäre äußerst hilfreich. Ein EU-Emissionshandel für alle CO2-Emissionen, der mit einem Paris-kompatiblen Emissionspfad unterlegt ist, könnte dies leisten. Durch eine Pro-Kopf-Ausschüttung der Einnahmen und weitere zielgenaue sozialpolitische Maßnahmen, kann eine solche CO2-Bepreisung auch politisch zu einem Erfolgsmodell werden. Bestimmte industrielle Prozesse, wie z.B. die Stahlproduktion, müssen gesondert betrachtet werden.
It's all fun and games until you break my GPS
Creators: name: Markussen, Christine
Publisher: name: Archaeology Data Service
Year: 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Angular momentum non-conserving decays in isotropic media
Creators: name: Nieves, José F.
name: Pal, Palash B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Various processes that are forbidden in the vacuum due to angular momentum conservation can occur in a medium that is isotropic and does not carry any angular momentum. We illustrate this by considering explicitly two examples. The first one is the decay of a spin-0 particle into a photon and another spin-0 particle, using a model involving the Yukawa interactions of the scalar particles with a charged fermion field. The second one involves the decay of a neutrino into another neutrino and a graviton, in the standard model of particle interactions augmented with the linearized gravitational couplings.
description: 22 pages, Latex, uses axodraw.sty. 3 figures embedded in the tex file. This paper contains the same material as that presented in two earlier papers, arXiv:0901.2981 and arXiv:0901.2982, written by us. This version supersedes those two papers
A Freelance Archaeobotanist s day
Creators: name: Gray, Lisa
Publisher: name: Archaeology Data Service
Year: 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Day of Archaeology 2011
Creators: name: Pett, Daniel
Publisher: name: Archaeology Data Service
Year: 2011
Subjects: Day of Archaeology
Day of Archaeology 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
A deskbound archaeologist at work...
Creators: name: Flatman, Joe
Publisher: name: Archaeology Data Service
Year: 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
SAA at Garfield Park, Washington, DC
Creators: name: Mmalloy
Publisher: name: Archaeology Data Service
Year: 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Quasispecies Theory for Horizontal Gene Transfer and Recombination
Creators: name: Munoz, Enrique
name: Park, Jeong-Man
name: Deem, Michael W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: We introduce a generalization of the parallel, or Crow-Kimura, and Eigen models of molecular evolution to represent the exchange of genetic information between individuals in a population. We study the effect of different schemes of genetic recombination on the steady-state mean fitness and distribution of individuals in the population, through an analytic field theoretic mapping. We investigate both horizontal gene transfer from a population and recombination between pairs of individuals. Somewhat surprisingly, these nonlinear generalizations of quasi-species theory to modern biology are analytically solvable. For two-parent recombination, we find two selected phases, one of which is spectrally rigid. We present exact analytical formulas for the equilibrium mean fitness of the population, in terms of a maximum principle, which are generally applicable to any permutation invariant replication rate function. For smooth fitness landscapes, we show that when positive epistatic interactions are present, recombination or horizontal gene transfer introduces a mild load against selection. Conversely, if the fitness landscape exhibits negative epistasis, horizontal gene transfer or recombination introduce an advantage by enhancing selection towards the fittest genotypes. These results prove that the mutational deterministic hypothesis holds for quasi-species models. For the discontinuous single sharp peak fitness landscape, we show that horizontal gene transfer has no effect on the fitness, while recombination decreases the fitness, for both the parallel and the Eigen models. We present numerical and analytical results as well as phase diagrams for the different cases.
description: 54 pages; 8 figures; 12 tables; some typos corrected; to appear in Phys. Rev. E
Excavation at Appleby Magna- Getting children involved in archaeology!!
Creators: name: Eden Winter Taylor, Chloe
Publisher: name: Archaeology Data Service
Year: 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Wirksamer Preis auf CO2 plus Klimadividende: Der smarte Weg zur Klimarettung oder politisch riskant?
Creators: name: Wolfsteiner, Andreas
Publisher: name: Zenodo
Year: 2021
Subjects: Klimaschutzinstrumente
CO2-Preis
Klimadividende
EU-ETS
BEHG
nEHS
CO2-Abgabe
CO2-Steuer
Emissionshandel
fee and dividend
Energiegeld

description: Thesen Diskussionspapier: Eine CO2-Bepreisung als zentrales Instrument, um den Dekarbonisierungsprozess und die Einhaltung der Reduktionsziele zu steuern, wäre äußerst hilfreich. Ein EU-Emissionshandel für alle CO2-Emissionen, der mit einem Paris-kompatiblen Emissionspfad unterlegt ist, könnte dies leisten. Auf nationaler Ebene sollte die Versteigerung der Zertifikate im nationalen Emissionshandel vorgezogen werden. Durch eine Pro-Kopf-Ausschüttung der gesamten Einnahmen aus einer CO2-Bepreisung und weiterer zielgenauer sozialpolitischer Maßnahmen kann eine wirksame CO2-Bepreisung auch politisch zu einem Erfolgsmodell werden. Bestimmte industrielle Prozesse, wie z.B. die Stahlproduktion, müssen gesondert betrachtet werden.
A Day of Zooarchaeology
Creators: name: Jones, Emily Lena
Publisher: name: Archaeology Data Service
Year: 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Adjustment of the electric charge and current in pulsar magnetospheres
Creators: name: Lyubarsky, Yuri
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a simple numerical model of the plasma flow within the open field line tube in the pulsar magnetosphere. We study how the plasma screens the rotationally induced electric field and maintains the electric current demanded by the global structure of the magnetosphere. We show that even though bulk of the plasma moves outwards with relativistic velocities, a small fraction of particles is continuously redirected back forming reverse plasma flows. The density and composition (positrons or electrons, or both) of these reverse flows are determined by the distribution of the Goldreich-Julian charge density along the tube and by the global magnetospheric current. These reverse flows could significantly affect the process of the pair plasma production in the polar cap accelerator. Our simulations also show that formation of the reverse flows is accompanied by the generation of long wavelength plasma oscillations, which could be converted, via the induced scattering on the bulk plasma flow, into the observed radio emission.
description: 24 pages, 11 figures
New results from H.E.S.S. observations of galaxy clusters
Creators: name: Domainko, W.
name: Nedbal, D.
name: Hinton, J. A.
name: Martineau-Huynh, O.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Clusters of galaxies are believed to contain a significant population of cosmic rays. From the radio and probably hard X-ray bands it is known that clusters are the spatially most extended emitters of non-thermal radiation in the Universe. Due to their content of cosmic rays, galaxy clusters are also potential sources of VHE (>100 GeV) gamma rays. Recently, the massive, nearby cluster Abell 85 has been observed with the H.E.S.S. experiment in VHE gamma rays with a very deep exposure as part of an ongoing campaign. No significant gamma-ray signal has been found at the position of the cluster. The non-detection of this object with H.E.S.S. constrains the total energy of cosmic rays in this system. For a hard spectral index of the cosmic rays of -2.1 and if the cosmic-ray energy density follows the large scale gas density profile, the limit on the fraction of energy in these non-thermal particles with respect to the total thermal energy of the intra-cluster medium is 8% for this particular cluster. This value is at the lower bounds of model predictions.
description: 4 pages, one figure, invited talk at the 2nd Heidelberg workshop: "High-Energy Gamma-rays and Neutrinos from Extra-Galactic Sources", January 13 - 16, 2009, to be published in Int. J. Mod. Phys. D
Final FAIRsFAIR repository support workshop: Celebrating contributions and achievements of the FAIRsFAIR supported repositories
Creators: name: Cepinskas, Linas
name: Von Stein, Ilona
Publisher: name: Zenodo
Year: 2021
Subjects: Certification support
Repository certification
CoreTrustSeal
Trusted digital repositories
FAIR data

description: This workshop was organised as part of Task 4.3 activities concerning certification support for digital repositories and it is the fifth output in the FAIRsFAIR Certification Support Programme. FAIRsFAIR provides support and capacity building, including materials, training and advice for repository managers to improve their knowledge of activities related to the preparations for CoreTrustSeal self-assessments. The objectives of the workshop were to: Celebrate all the great achievements of the participating repositories Highlight the lessons learned from the repository support programme Discuss the next steps in relation to the repository support programme The workshop participants were the representatives of the ten repositories that have been selected for the Certification Support Programme, a part of the FAIRsFAIR work package 4 (FAIR Certification). The slides include the key highlights of the support programme, the activities overview until the end of the programme as well as information about other relevant resources.
Pair cascades in the magnetospheres of strongly-magnetized neutron stars
Creators: name: Medin, Zach
name: Lai, Dong
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present numerical simulations of electron-positron pair cascades in the magnetospheres of magnetic neutron stars for a wide range of surface fields (B_p = 10^{12}--10^{15} G), rotation periods (0.1--10 s), and field geometries. This has been motivated by the discovery in recent years of a number of radio pulsars with inferred magnetic fields comparable to those of magnetars. Evolving the cascade generated by a primary electron or positron after it has been accelerated in the inner gap of the magnetosphere, we follow the spatial development of the cascade until the secondary photons and pairs leave the magnetosphere, and we obtain the pair multiplicity and the energy spectra of the cascade pairs and photons under various conditions. Going beyond previous works, which were restricted to weaker fields (B < a few x 10^{12} G), we have incorporated in our simulations detailed treatments of physical processes that are potentially important (especially in the high field regime) but were either neglected or crudely treated before, including photon splitting with the correct selection rules for photon polarization modes, one-photon pair production into low Landau levels for the e^+e^-, and resonant inverse Compton scattering from polar cap hot spots. We discuss the implications of our results for the radio pulsar death line and for the hard X-ray emission from magnetized neutron stars.
description: 28 pages, 18 figures, submitted to MNRAS
The relationship between chromospheric emissions and magnetic field strength
Creators: name: Loukitcheva, Maria A.
name: Solanki, Sami K.
name: White, Stephen M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Aims. We analyze observational data from 4 instruments to study the correlations between chromospheric emission, spanning the heights from the temperature minimum region to the middle chromosphere, and photospheric magnetic field. Methods: The data consist of radio images at 3.5 mm from the Berkeley-Illinois-Maryland Array (BIMA), UV images at 1600 A from TRACE, Ca II K-line filtergrams from BBSO, and MDI/SOHO longitudinal photospheric magnetograms. For the first time interferometric millimeter data with the highest currently available resolution are included in such an analysis. We determine various parameters of the intensity maps and correlate the intensities with each other and with the magnetic field. Results: The chromospheric diagnostics studied here show a pronounced similarity in their brightness structures and map out the underlying photospheric magnetic field relatively well. We find a power law to be a good representation of the relationship between photospheric magnetic field and emission from chromospheric diagnostics at all wavelengths. The dependence of chromospheric brightness on magnetic field is found to be different for network and internetwork regions.
description: 13 pages, 14 figures, 3 tables
ACME Checklists for FAIR-enabling Capabilities
Creators: name: White, Angus
Publisher: name: Zenodo
Year: 2021
Subjects: FAIR data
Open Science
Universities
Skills training
Sustainability
Impact

description: Diverse initiatives are being developed and implemented by universities across Europe to foster the uptake of the research data management (RDM) and FAIR data skills necessary to bring forward the transition to Open Science. Lessons can be learned from bringing together their experience in different legal, organisational and cultural contexts, providing inspiration and points for reflection for other universities transitioning to Open Science. The workshop will discuss with participants the analysis of good practices of universities across Europe that are being gathered by the FAIRsFAIR project. Preliminary results from this ongoing study will be presented, highlighting the drivers, impact and implementation steps behind the initiatives taken by institutions to integrate RDM and FAIR data skills in university curricula. The shift towards hybrid models of teaching data-related skills is also addressed in the analysis, showing how the COVID-19 pandemic created not only challenges but also surprising opportunities for the implementation of Open Science practices in universities. Findings will include information on legal, organisational and cultural differences between regional and national systems in Europe, which will allow to contextualise university initiatives. Comments and feedback from participants beyond Europe will be welcomed and will further improve the cross-border exchange of good practices. The workshop will be of interest to RDM and FAIR teachers, trainers and practitioners, as well as European and national policy makers. Participants will be invited to reflect on their own institutional experiences in an engaging and interactive way, through breakout rooms and a digital workspace set in Mural. This presentation is about supporting the implementation of FAIR data skills in university teaching
Learning lessons from FAIR data implementation: first findings from the report "Good practices in FAIR competence education"
Creators: name: Garbuglia, Federica
Publisher: name: Zenodo
Year: 2021
Subjects: FAIR data
Open Science
Universities
Skills training
Sustainability
Impact

description: Diverse initiatives are being developed and implemented by universities across Europe to foster the uptake of the research data management (RDM) and FAIR data skills necessary to bring forward the transition to Open Science. Lessons can be learned from bringing together their experience in different legal, organisational and cultural contexts, providing inspiration and points for reflection for other universities transitioning to Open Science. The workshop will discuss with participants the analysis of good practices of universities across Europe that are being gathered by the FAIRsFAIR project. Preliminary results from this ongoing study will be presented, highlighting the drivers, impact and implementation steps behind the initiatives taken by institutions to integrate RDM and FAIR data skills in university curricula. The shift towards hybrid models of teaching data-related skills is also addressed in the analysis, showing how the COVID-19 pandemic created not only challenges but also surprising opportunities for the implementation of Open Science practices in universities. Findings will include information on legal, organisational and cultural differences between regional and national systems in Europe, which will allow to contextualise university initiatives. Comments and feedback from participants beyond Europe will be welcomed and will further improve the cross-border exchange of good practices. The workshop will be of interest to RDM and FAIR teachers, trainers and practitioners, as well as European and national policy makers. Participants will be invited to reflect on their own institutional experiences in an engaging and interactive way, through breakout rooms and a digital workspace set in Mural. This presentation is dedicated on the first findings from the report “Good practices in FAIR competence education”.
A day: Professional Service, the Dissertation, and Happy Hour
Creators: name: Brock, Terry
Publisher: name: Archaeology Data Service
Year: 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
A liquid Xenon Positron Emission Tomograph for small animal imaging : first experimental results of a prototype cell
Creators: name: Gallin-Martel, M. L.
name: Gallin-Martel, L.
name: Grondin, Y.
name: Rossetto, O.
name: Collot, J.
name: Grondin, D.
name: Jan, S.
name: Martin, Ph.
name: Mayet, F.
name: Petit, P.
name: Vezzu, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: A detector using liquid Xenon (LXe) in the scintillation mode is studied for Positron Emission Tomography (PET) of small animals. Its specific design aims at taking full advantage of the Liquid Xenon scintillation properties. This paper reports on energy, time and spatial resolution capabilities of the first LXe prototype module equipped with a Position Sensitive Photo- Multiplier tube (PSPMT) operating in the VUV range (178 nm) and at 165 K. The experimental results show that such a LXe PET configuration might be a promising solution insensitive to any parallax effect.
description: 34 pages, 18 pages, to appear in NIMA
Coffee and assorted bones
Creators: name: Jones, Emily Lena
Publisher: name: Archaeology Data Service
Year: 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Supporting students in the field
Creators: name: Goodchild, Helen
Publisher: name: Archaeology Data Service
Year: 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
A Schottky top-gated two-dimensional electron system in a nuclear spin free Si/SiGe heterostructure
Creators: name: Sailer, J.
name: Lang, V.
name: Abstreiter, G.
name: Tsuchiya, G.
name: Itoh, K. M.
name: Ager, J. W.
name: Haller, E. E.
name: Kupidura, D.
name: Harbusch, D.
name: Ludwig, S.
name: Bougeard, D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the realization and top-gating of a two-dimensional electron system in a nuclear spin free environment using 28Si and 70Ge source material in molecular beam epitaxy. Electron spin decoherence is expected to be minimized in nuclear spin-free materials, making them promising hosts for solid-state based quantum information processing devices. The two-dimensional electron system exhibits a mobility of 18000 cm2/Vs at a sheet carrier density of 4.6E11 cm-2 at low temperatures. Feasibility of reliable gating is demonstrated by transport through split-gate structures realized with palladium Schottky top-gates which effectively control the two-dimensional electron system underneath. Our work forms the basis for the realization of an electrostatically defined quantum dot in a nuclear spin free environment.
description: 8 pages, 3 figures
Scouting museum collections for teaching
Creators: name: Jones, Emily Lena
Publisher: name: Archaeology Data Service
Year: 2011

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.