cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Indirect searches of dark matter
Creators: name: Zhang, Le
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If dark matter decays or annihilates into electrons and positrons, it can affect radiation and cosmic-ray backgrounds. We review a novel, more general analysis of constraints on decaying dark matter models, by introducing the response functions based on the current radio, gamma-ray and positron observations. Constraints can be simply obtained by requiring the convolution of the response functions with actual decay spectrum of electrons and positrons smaller than the product of decay lifetime in 10^{26}s and mass in 100GeV. The response functions just depend on the astrophysical inputs such as the propagation model, but not on the microscopic decay scenario. Moreover, an anisotropy analysis of the full-sky radio emissions to identify the extragalactic dark matter annihilation is shown. We discuss the angular power spectra of the cosmological synchrotron emission from dark matter annihilations into electron positron pairs and compare them with astrophysical backgrounds and Galactic foregrounds. We find that the angular power spectrum of radio fluxes at around GHz frequencies and in the range of 200
description: 6 pages, 4 figures, talk given at the IDM 2010 conference, July 26-30 2010, Montpellier, France
Lukas Högl, Burgen im Fels. Eine Untersuchung der mittelalterlichen Höhlen-, Grotten- und Balmburgen der Schweiz
Creators: name: Meckseper, Cord
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: Rezension zu: Lukas Högl, Burgen im Fels. Eine Untersuchung der mittelalterlichen Höhlen-, Grotten- und Balmburgen der Schweiz, mit Beiträgen von Lothar Deplazes, Peter Kaiser u.a. (Schweizer Beiträge zur Kulturgeschichte und Archäologie des Mittelalters, hrsg. vom Schweizerischen Burgenverein, Redaktion Maria Letizia Heyer-Boscardin, Band 12), Olten und Freiburg im Breisgau: Walter-Verlag 1986 ISBN 3-530-36930-6.
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 30 Nr. 1 (1989): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Photometric segregation of dwarf and giant FGK stars using the SVO Filter Profile Service and photometric tools
Creators: name: Rodrigo, Carlos
name: Cruz, Patricia
name: Aguilar, John F.
name: Aller, Alba
name: Solano, Enrique
name: Galvez-Ortiz, Maria Cruz
name: Jimenez-Esteban, Francisco
name: Mas-Buitrago, Pedro
name: Bayo, Amelia
name: Cortes-Contreras, Miriam
name: Murillo-Ojeda, Raquel
name: Bonoli, Silvia
name: Cenarro, Javier
name: Dupke, Renato
name: Lopez-Sanjuan, Carlos
name: Marin-Franch, Antonio
name: de Oliveira, Claudia Mendes
name: Moles, Mariano
name: Taylor, Keith
name: Varela, Jesus
name: Ramio, Hector Vazquez
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This paper is focused on the segregation of FGK dwarf and giant stars through narrow-band photometric data using the Spanish Virtual Observatory (SVO) Filter Profile Service and associated photometric tools. We selected spectra from the MILES, STELIB, and ELODIE stellar libraries, and used SVO photometric tools to derive the synthetic photometry in 15 J-PAS narrow filters, which were especially selected to cover spectral features sensitive to gravity changes. Using machine-learning techniques as the Gaussian mixture model and the support vector machine, we defined several criteria based on J-PAS colours to discriminate between dwarf and giant stars. We selected five colour-colour diagrams that presented the most promising separation between both samples. Our results show an overall accuracy in the studied sample of $\sim$0.97 for FGK stars, although a dependence on the luminosity type and the stellar effective temperature was found. We also defined a colour-temperature relation for dwarf stars with effective temperatures between 4\,000 and 7\,000\,K, which allows one to estimate the stellar effective temperature from four J-PAS filters ($J0450$, $J0510$, $J0550$, and $J0620$). Additionally, we extended the study to M-type giant and dwarf stars, achieving a similar accuracy to that for FGK stars.
description: 19 pages, 18 figures, published in A&A
Die kurkölnische Landesburg Brühl
Creators: name: Knopp, Gisbert
name: Nußbaum, Norbert
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 30 Nr. 2 (1989): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Density Fluctuations in Uniform Quantum Gases
Creators: name: Bosse, J.
name: Pathak, K. N.
name: Singh, G. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences
subject: 82-06

description: Analytical expressions are given for the static structure factor S(k) and the pair correlation function g(r) for uniform ideal Bose-Einstein and Fermi-Dirac gases for all temperatures. In the vicinity of Bose Einstein condensation (BEC) temperature, g(r) becomes long ranged and remains so in the condensed phase. In the dilute gas limit, g(r) of bosons & fermions do not coincide with Maxwell-Boltzmann gas but exhibit bunching & anti-bunching effect respectively. The width of these functions depends on the temperature and is scaled as \surd (inverse atomic mass). Our numerical results provide the precise quantitative values of suppression/increase (antibunching and bunching) of the density fluctuations at small distances in ideal quantum gases in qualitative agreement with the experimental observation for almost non-trapped dilute gases.
description: 4 pages,8 figures,conference
Die Burg auf dem Eisenberg. Eine Burg des ausgehenden Mittelalters
Creators: name: Schmitt, Felix
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 30 Nr. 2 (1989): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Stolzenfels bei Koblenz. Ein Beitrag zur Geschichte des Erzstifts Trier im Spätmittelalter
Creators: name: Kerber, Dieter
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 31 Nr. 1 (1990): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Upregulation of telomerase-independent apoptosis characterizes cutaneous malignancies in older patients
Creators: name: J Moorhead
name: Diaz-Cano, Salvador J.
Publisher: name: Figshare
Year: 2012
Subjects: Medicine
Molecular Biology
Cancer
Cell Biology

description: Background: There are controversial results on the influence of age on malignancy prognosis, being the patient age used as staging criteria (e.g., thyroid neoplasms). To test biologic features that can explain differences in tumors by age, the skin model was selected for two main reasons: tumors tend to be detected relatively early due to their easy access and a whole variety of common neoplasms (carcinomas, melanomas, sarcomas and lymphomas) can be analyzed.
Design: We selected 50 cases of nodular basal cell carcinomas, well-differentiated squamous cell carcinoma, superficial spreading malignant melanoma, dermatofibrosarcoma protuberans, and patch stage mycosis fungoides that have appropriate archival material. Representative samples were evaluated by standard immunohistochemistry for Ki67, telomerase, mlh1, msh2, In situ end labeling of DNA fragments (TUNNEL for apoptosis detection), and FISH-PNA of telomere. The tests were assessed in the whole lesion and the positive cells expressed as percentage of tumor cells. Appropriate controls were run in each sample. Cases were stratified according to patient’s age in <50 years (group A, 10 cases), 50-70 years (group B, 30 cases) and >70 years (group C, 10 cases). The results were statistically compared using analysis of variance and Student t-test, and considered significant if P<0.05.
Results: The average age in each group was 34 (group A), 59 (group B) and 78 years (group C). All neoplasms were revealed positive for mlh1 and msh2, regardless of the age group. Proliferation and the percentage of FISH-detectable telomere revealed and inverse correlation, being proliferation significantly higher in group A than in group C; telomere revealed the opposite pattern. Apoptosis and the global kinetic index Ki67×Telomere/ TUNNEL (%) were significantly higher in group C as compared with A and B (P=0.0003 and P=0.0006). Group B was heterogeneous, cases being able to stratified by group A and C patterns.
Group A/ Group B/ Group C
<50/ 50-70/ >70
Ki67/ 19.74/ 16.75/ 15.40
Telomere FISH/ 41.66/ 53.97/ 53.25
Ki67×Telomere (%)/ 3.42/ 7.35/ 7.56
TUNNEL / 0.50/ 2.82/ 10.17
Ki67×Telomere/TUNNEL (%) / 31.64/ 26.49/ 43.94
Conclusion: In the absence of mismatch repair abnormalities, malignancies in older patients are defined by significantly increased apoptosis, related with a telomere-independent accumulation of genetic alteration that is facilitated by lower cellular turnover.
SL(2,Z) Action on AdS/BCFT and Hall Conductivities
Creators: name: Fujita, Mitsutoshi
name: Kaminski, Matthias
name: Karch, Andreas
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the response of a conserved current to external electromagnetic fields in a holographic system with boundaries using the recently proposed AdS/BCFT (boundary conformal field theory) framework. This, in particular, allows us to extract the Hall current, the Hall conductivity, plus some potentially novel transport coefficients, and relations among them. We also analyze the action of SL(2,Z) duality in the gravity bulk, which acts non-trivially on the conductivity of the BCFT. Finally we consider a type IIA string theory embedding of our setup.
description: 26 pages, 1 figure; v2: references added
Die Burgenpartnerschaft Marksburg - Maruoka in Japan: ein Ansatz zu internationalen Beziehungen für Forschung und denkmalverträglichen Tourismus
Creators: name: Dollen, Busso Von Der
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 31 Nr. 1 (1990): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
The Rich Circumstellar Chemistry of SMP LMC 11
Creators: name: Malek, Sarah E.
name: Cami, Jan
name: Bernard-Salas, Jeronimo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Carbon-rich evolved stars from the asymptotic giant branch to the planetary nebula phase are characterized by a rich and complex carbon chemistry in their circumstellar envelopes. A peculiar object is the preplanetary nebula SMP LMC 11, whose Spitzer-IRS spectrum shows remarkable and diverse molecular absorption bands. To study how the molecular composition in this object compares to our current understanding of circumstellar carbon chemistry, we modeled this molecular absorption. We find high abundances for a number of molecules, perhaps most notably benzene. We also confirm the presence of propyne (CH3C2H) in this spectrum. Of all the cyanopolyynes, only HC3N is evident; we can detect at best a marginal presence of HCN. From comparisons to various chemical models, we can conclude that SMP LMC 11 must have an unusual circumstellar environment (a torus rather than an outflow).
description: 13 pages, 4 figures, accepted for publication in ApJ
Ingrid Krupp, Kirchen, Kapellen, Burgen, Schlösser im Kreis Limburg- Weilburg
Creators: name: Hofrichter, Hartmut
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: Rezension zu: Ingrid Krupp, Kirchen, Kapellen, Burgen, Schlösser im Kreis Limburg- Weilburg, mit 237 Origmalgrafiken von Hermann Krupp, Limburg a.d. Lahn: Kreisausschuft des Landkreises Limburg-Weilburg 1987, 265 S., Übersichtskarte. ISBN 3-927-006-00-9.
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 31 Nr. 1 (1990): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Chevalley, Denis Andre, Denkmäler in Bayern. Bd. VI, Unterfranken
Creators: name: Liessem, Udo
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: Rezension zu: Chevalley, Denis Andre, Denkmäler in Bayern. Bd. VI, Unterfranken, Ensembles-Baudenkmäler-Archäologische Geländedenkmäler, Luftaufnahmen von Otto Braasch, hrsg. vom Bayerischen Landesamt für Denkmalpflege, München: R. Oldenbourg 1985, XIII u. 396 S., 92 Luftaufnahmen, davon drei farbige, 75 Pläne. ISBN 3-486-52397-X.
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 31 Nr. 2 (1990): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Intra-night optical variability of core dominated radio quasars: the role of optical polarization
Creators: name: Goyal, Arti
name: Gopal-Krishna
name: Wiita, Paul J.
name: Anupama, G. C.
name: Sahu, D. K.
name: Sagar, R.
name: Joshi, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: {Abridged} Rapid variations in optical flux are seen in many quasars and all blazars. The amount of variability in different classes of Active Galactic Nuclei has been studied extensively but many questions remain unanswered. We present the results of a long-term programme to investigate the intra-night optical variability (INOV) of powerful flat spectrum radio core-dominated quasars (CDQs), with a focus on probing the relationship of INOV to the degree of optical polarization. We observed a sample of 16 bright CDQs showing strong broad optical emission lines and consisting of both high and low optical polarization quasars (HPCDQs and LPCDQs). We employed ARIES, IIA, IGO telescopes, to carry out {\it R}-band monitoring on a total of 47 nights. Combining these INOV data with those taken from the literature, we were able to increase the sample size to 21 CDQs(12 LPCDQs and 9 HPCDQs) monitored on a total of 73 nights. As the existence of a prominent flat-spectrum radio core signifies that strong relativistic beaming is present in all these CDQs, the definitions of the two sets differ primarily in fractional optical polarization, the LPCDQs showing a very low median$ P_{op} \simeq$ 0.4 per cent. Our study yields an INOV duty cycle (DC) of $\sim$28 per cent for the LPCDQs and $\sim 68$ percent for HPCDQs. If only strong INOV with fractional amplitude above 3 per cent is considered, the corresponding DCs are $\sim$ 7 per cent and $\sim$ 40 per cent, respectively.From this strong contrast between the two classes of luminous, relativistically beamed quasars, it is apparent that relativistic beaming is normally not a sufficient condition for strong INOV and a high optical polarization is the other necessary condition.
description: 42 pages; 7 figures ; 6 tables; Accepted for publication in A&A
[Annoncen]
Creators: name: Die Redaktion
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 31 Nr. 2 (1990): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Effective Long-Range Interactions in Confined Curved Dimensions
Creators: name: Schmelcher, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We explore the effective long-range interaction of charged particles confined to a curved low-dimensional manifold using the example of a helical geometry. Opposite to the Coulomb interaction in free space the confined particles experience a force which is oscillating with the distance between the particles. This leads to stable equilibrium configurations and correspondingly induced bound states whose number is tunable with the parameters of the helix. We demonstrate the existence of a plethora of equilibria of few-body chains with different symmetry character that are allowed to freely move. An outline concerning the implications on many-body helical chains is provided.
description: 13 pages, 3 Figures
Otto der Große, Magdeburg und Europa
Creators: name: Die Redaktion
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 42 Nr. 3 (2001): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Fast Brownian cluster dynamics
Creators: name: Antonov, Alexander P.
name: Schweers, Sören
name: Ryabov, Artem
name: Maass, Philipp
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present an efficient method to perform overdamped Brownian dynamics simulations in external force fields and for particle interactions that include a hardcore part. The method applies to particle motion in one dimension, where it is possible to update particle positions by repositioning particle clusters as a whole. These clusters consist of several particles in contact. They form because particle collisions are treated as completely inelastic rather than elastic ones. Updating of cluster positions in time steps is carried out by cluster fragmentation and merging procedures. The presented method is particularly powerful at high collision rates in densely crowded systems, where collective movements of particle assemblies is governing the dynamics. As an application, we simulate the single-file diffusion of sticky hard spheres in a periodic potential.
description: 15 pages, 7 figures
Tomasz Torbus, Die Konventsburgen im Deutschordensland Preußen
Creators: name: Lückerath, Carl August
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: Rezension zu: Tomasz Torbus, Die Konventsburgen im Deutschordensland Preußen, (Schriften des Bundesinstituts für Ostdeutsche Kultur und Geschichte, Bd. 11), München: R. Oldenbourg-Verlag 1998, 956 S., 505 z.T. farbige Abb., 2 Ktn. auf Vor- und Nachsatzblatt, fester Einband. ISBN 3-486-56358-0.
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 42 Nr. 3 (2001): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Decision-Focused Surrogate Modeling for Mixed-Integer Linear Optimization
Creators: name: Dixit, Shivi
name: Gupta, Rishabh
name: Zhang, Qi
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Mixed-integer optimization is at the core of many online decision-making systems that demand frequent updates of decisions in real time. However, due to their combinatorial nature, mixed-integer linear programs (MILPs) can be difficult to solve, rendering them often unsuitable for time-critical online applications. To address this challenge, we develop a data-driven approach for constructing surrogate optimization models in the form of linear programs (LPs) that can be solved much more efficiently than the corresponding MILPs. We train these surrogate LPs in a decision-focused manner such that for different model inputs, they achieve the same or close to the same optimal solutions as the original MILPs. One key advantage of the proposed method is that it allows the incorporation of all the original MILP's linear constraints, which significantly increases the likelihood of obtaining feasible predicted solutions. Results from two computational case studies indicate that this decision-focused surrogate modeling approach is highly data-efficient and provides very accurate predictions of the optimal solutions. In these examples, it outperforms more commonly used neural-network-based optimization proxies.
Modular Forms and Generalized Anomaly Cancellation Formulas
Creators: name: Han, Fei
name: Liu, Kefeng
name: Zhang, Weiping
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper, we generalize the anomaly cancellation formulas in \cite{AW, Liu1, HZ2} to the cases that an auxiliary bundle $W$ as well as a complex line bundle $ξ$ are involved with no conditions on the first Pontryagin forms being assumed.
description: 22 pages
Konzept Weltdemokratie, 1. Deutsche Fassung
Creators: name: Rose, Niklas
Publisher: name: Zenodo
Year: 2016
Subjects: Demokratie
democracy
Weltdemokratie
Welt
worlddemocracy
world
Politik
politics
Change
Veränderung
Revolution
revolution
politisches System
political system

description: 1. deutsche Fassung des Konzepts einer Weltdemokratie
Rudolf Kleeberg/Wolfgang Eberl, Kulturgüter im Privatbesitz. Handbuch für das Denkmal- und Steuerrecht
Creators: name: Hönes, Ernst-Rainer
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: Rezension zu: Rudolf Kleeberg/Wolfgang Eberl, Kulturgüter im Privatbesitz. Handbuch für das Denkmal- und Steuerrecht, 2., vollst. neu bearb. Aufl., Heidelberg: Verlag Recht und Wirtschaft 2001, 415 S., Ln. ISBN 3-8005-2045-1.
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 42 Nr. 3 (2001): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Probing the interiors of the ice giants: Shock compression of water to 700 GPa and 3.8 g/ccm
Creators: name: Knudson, M. D.
name: Desjarlais, M. P.
name: Lemke, R. W.
name: Mattsson, T. R.
name: French, M.
name: Nettelmann, N.
name: Redmer, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Recently there has been tremendous increase in the number of identified extra-solar planetary systems. Our understanding of their formation is tied to exoplanet internal structure models, which rely upon equations of state of light elements and compounds like water. Here we present shock compression data for water with unprecedented accuracy that shows water equations of state commonly used in planetary modeling significantly overestimate the compressibility at conditions relevant to planetary interiors. Furthermore, we show its behavior at these conditions, including reflectivity and isentropic response, is well described by a recent first-principles based equation of state. These findings advocate this water model be used as the standard for modeling Neptune, Uranus, and "hot Neptune" exoplanets, and should improve our understanding of these types of planets.
description: Accepted to Phys. Rev. Lett.; supplementary material attached including 2 figures and 2 tables; to view attachments, please download and extract the gzipped tar source file listed under "Other formats"
Zertifikats- Lehrgang zum Burgen- und Schlösserführer (IHK)
Creators: name: Die Redaktion
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 44 Nr. 3 (2003): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Magnetoelectric effect due to local noncentrosymmetry
Creators: name: Sakhnenko, V. P.
name: Ter-Oganessian, N. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetoelectrics often possess ions located in noncentrosymmetric surroundings. Based on this fact we suggest a microscopic model of magnetoelectric interaction and show that the spin-orbit coupling leads to spin-dependent electric dipole moments of the electron orbitals of these ions, which results in non-vanishing polarization for certain spin configurations. The approach accounts for the macroscopic symmetry of the unit cell and is valid both for commensurate and complex incommensurate magnetic structures. The model is illustrated by the examples of MnWO4, MnPS3 and LiNiPO4. Application to other magnetoelectrics is discussed.
description: 11 pages, 2 figures, 2 tables
TECHNOLOGICAL APPLICATIONS AND ITS FUNCTIONALITY ON HCD PRACTICES
Creators: name: Boohene, David
name: Maxwell, Amita
Publisher: name: figshare
Year: 2023
Subjects: Human resources management
Human-computer interaction
Human information behaviour

description: A common trend in organizations is the leveraging of technology in innovative ways to support human capital development (Adayana, 2009). This paper examines in order of ranking, the different technological elements used in supporting the functionality of HCD Practices in the Indian IT Industry. To realize the above, a sample size of thirty (30) from different IT corporations in five major IT hubs in India namely Bangalore, Chennai, Hyderabad, Delhi and Mumbai were used for the study. The results of the study showed that Management information system followed closely by Mobile communication and Web collaboration respectively appears to be the most frequently technological application used in supporting the functionality of Human Capital Development Practices in the IT Industry
Implementation of low-loss superinductances for quantum circuits
Creators: name: Masluk, Nicholas A.
name: Pop, Ioan M.
name: Kamal, Archana
name: Minev, Zlatko K.
name: Devoret, Michel H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The simultaneous suppression of charge fluctuations and offsets is crucial for preserving quantum coherence in devices exploiting large quantum fluctuations of the superconducting phase. This requires an environment with both extremely low DC and high RF impedance. Such an environment is provided by a superinductance, defined as a zero DC resistance inductance whose impedance exceeds the resistance quantum $R_Q = h/(2e)^2 \simeq 6.5\ \mathrm{kΩ}$ at frequencies of interest (1 - 10 GHz). In addition, the superinductance must have as little dissipation as possible, and possess a self-resonant frequency well above frequencies of interest. The kinetic inductance of an array of Josephson junctions is an ideal candidate to implement the superinductance provided its phase slip rate is sufficiently low. We successfully implemented such an array using large Josephson junctions ($E_J >> E_C$), and measured internal losses less than 20 ppm, self-resonant frequencies greater than 10 GHz, and phase slip rates less than 1 mHz.
Vanna  Iori,  Daniele  Bruzzone  (a  cura  di), Le  ombre  dell’educazione. Ambivalenze, impliciti, paradossi, Franco Angeli, Milano 2015
Creators: name: Ilardo, Marta
Publisher: name: Dipartimento di Scienze Dell’Educazione «Giovanni Maria Bertin» - Università di Bologna
Year: 2015

description: Ricerche di Pedagogia e Didattica. Journal of Theories and Research in Education, Vol 10, N° 2 (2015)
Die konservatorische Temperierung
Creators: name: Fischer, Konrad
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 48 Nr. 4 (2007): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Interactions between Magnetic Nanowires and Living Cells : Uptake, Toxicity and Degradation
Creators: name: Safi, Malak
name: Yan, Minhao
name: Guedeau-Boudeville, Marie-Alice
name: Conjeaud, Hélène
name: Garnier-Thibaud, Virginie
name: Boggetto, Nicole
name: Baeza-Squiban, Armelle
name: Niedergang, Florence
name: Averbeck, Dietrich
name: Berret, Jean-François
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the uptake, toxicity and degradation of magnetic nanowires by NIH/3T3 mouse fibroblasts. Magnetic nanowires of diameters 200 nm and lengths comprised between 1 μm and 40 μm are fabricated by controlled assembly of iron oxide (γ-Fe2O3) nanoparticles. Using optical and electron microscopy, we show that after 24 h incubation the wires are internalized by the cells and located either in membrane-bound compartments or dispersed in the cytosol. Using fluorescence microscopy, the membrane-bound compartments were identified as late endosomal/lysosomal endosomes labeled with lysosomal associated membrane protein (Lamp1). Toxicity assays evaluating the mitochondrial activity, cell proliferation and production of reactive oxygen species show that the wires do not display acute short-term (< 100 h) toxicity towards the cells. Interestingly, the cells are able to degrade the wires and to transform them into smaller aggregates, even in short time periods (days). This degradation is likely to occur as a consequence of the internal structure of the wires, which is that of a non-covalently bound aggregate. We anticipate that this degradation should prevent long-term asbestos-like toxicity effects related to high aspect ratio morphologies and that these wires represent a promising class of nanomaterials for cell manipulation and microrheology.
description: 21 pages 12 figures
How Human-centered Tools and Processes Can Improve Software Development
Creators: name: Huebl, Axel
Publisher: name: Zenodo
Year: 2023
Subjects: open science
open source
development
sustainability
research software
processes
automation
community

description: Modern software engineering in research is increasingly assisted by a plethora of sophisticated development tools. In this presentation, we will take a look at typical tooling and automation processes. Motivated by a human-centric approach for development, we will discuss selected challenges and solutions for open teams in their interactions. On the technical side, will cover aspects of development for C++/Python, testing, review, team coordination and support mechanisms.
CARMA Measurements of the Sunyaev-Zel'dovich Effect in RXJ1347.5-1145
Creators: name: Plagge, Thomas J.
name: Marrone, Daniel P.
name: Abdulla, Zubair
name: Bonamente, Massimiliano
name: Carlstrom, John E.
name: Gralla, Megan
name: Greer, Christopher H.
name: Joy, Marshall
name: Lamb, James W.
name: Leitch, Erik M.
name: Mantz, Adam
name: Muchovej, Stephen
name: Woody, David
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We demonstrate the Sunyaev-Zel'dovich (SZ) effect imaging capabilities of the Combined Array for Research in Millimeter-wave Astronomy (CARMA) by presenting an SZ map of the galaxy cluster RXJ1347.5-1145. By combining data from multiple CARMA bands and configurations, we are able to capture the structure of this cluster over a wide range of angular scales, from its bulk properties to its core morphology. We find that roughly 9% of this cluster's thermal energy is associated with sub-arcminute-scale structure imparted by a merger, illustrating the value of high-resolution SZ measurements for pursuing cluster astrophysics and for understanding the scatter in SZ scaling relations. We also find that the cluster's SZ signal is lower in amplitude than suggested by a spherically-symmetric model derived from X-ray data, consistent with compression along the line of sight relative to the plane of the sky. Finally, we discuss the impact of upgrades currently in progress that will further enhance CARMA's power as an SZ imaging instrument.
description: 8 pages, 6 figures
Impact of strong magnetic fields on collision mechanism for transport of charged particles
Creators: name: Bostan, Mihai
name: Gamba, Irene M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: One of the main applications in plasma physics concerns the energy production through thermo-nuclear fusion. The controlled fusion is achieved by magnetic confinement i.e., the plasma is confined into a toroidal domain (tokamak) under the action of huge magnetic fields. Several models exist for describing the evolution of strongly magnetized plasmas, most of them by neglecting the collisions between particles. The subject matter of this paper is to investigate the effect of large magnetic fields with respect to a collision mechanism. We consider here linear collision Boltzmann operators and derive, by averaging with respect to the fast cyclotronic motion due to strong magnetic forces, their effective collision kernels.
The electroweak contribution to the top quark forward-backward asymmetry at the Tevatron
Creators: name: Hollik, Wolfgang
name: Pagani, Davide
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The electroweak contributions to the forward-backward asymmetry in the production of top-quark pairs at the Tevatron are evaluated at O(alpha^2) and O(alpha*alphas^2). We perform a detailed analysis of all partonic channels that produce an asymmetry and combine them with the QCD contributions. They provide a non-negligible fraction of the QCD-induced asymmetry with the same overall sign, thus enlarging the Standard Model prediction and diminishing the observed deviation. For the observed mass-dependent forward-backward asymmetry a 3-sigma deviation still remains at an invariant-mass cut of M_(t-tbar) > 450 GeV.
description: 14 pages, 8 figures
Continuous variable quantum key distribution based on optical entangled states without signal modulation
Creators: name: Su, Xiaolong
name: Wang, Wenzhe
name: Wang, Yu
name: Jia, Xiaojun
name: Xie, Changde
name: Peng, Kunchi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we present the first experimental demonstration on continuous variable quantum key distribution using determinant Einstein-Podolsky-Rosen entangled states of optical field. By means of the instantaneous measurements of the quantum fluctuations of optical modes respectively distributed at sender and receiver, the random bits of secret key are obtained without the need for signal modulation. The post-selection boundaries for the presented entanglement-based scheme against both Gaussian collective and individual attacks are theoretically concluded. The final secret key rates of 84 kbits/s and 3 kbits/s are completed under the collective attack for the transmission efficiency of 80% and 40%, respectively.
Fabrication and Characterization of Controllable Grain Boundary Arrays in Solution Processed Small Molecule Organic Semiconductor Films
Creators: name: Wo, Songtao
name: Headrick, Randall L.
name: Anthony, John E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have produced solution-processed thin films of 6,13-bis(triisopropyl-silylethynyl) pentacene with grain sizes from a few micrometers up to millimeter scale by lateral crystallization from a rectangular stylus. Grains are oriented along the crystallization direction, and the grain size transverse to the crystallization direction depends inversely on the writing speed, hence forming a regular array of oriented grain boundaries with controllable spacing. We utilize these controllable arrays to systematically study the role of large-angle grain boundaries in carrier transport and charge trapping in thin film transistors. The effective mobility scales with the grain size, leading to an estimate of the potential drop at individual large-angle grain boundaries of more than one volt. This result indicates that the structure of grain boundaries is not molecularly abrupt, which may be a general feature of solution processed small molecule organic semiconductor thin films where relatively high energy grain boundaries are typically formed. This may be due to the crystal Transient measurements after switching from positive to negative gate bias or between large and small negative gate bias reveal reversible charge trapping with time constants on the order of 10 s, and trap densities that are correlated with grain boundary density. We suggest that charge diffusion along grain boundaries and other defects is the rate determining mechanism of the reversible trapping.
description: 12 pages, 11 figures
A Note on Riemann Surfaces of Large Systole
Creators: name: Makisumi, Shotaro
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: Number Theory (math.NT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 53C23, 11R52

description: We examine the large systole problem, which concerns compact hyperbolic Riemannian surfaces whose systole, the length of the shortest noncontractible loops, grows logarithmically in genus. The generalization of a construction of Buser and Sarnak by Katz, Schaps, and Vishne, which uses principal "congruence" subgroups of a fixed cocompact arithmetic Fuchsian, achieves the current maximum known growth constant of γ= 4/3. We prove that this is the best possible value of γfor this construction using arithmetic Fuchsians in the congruence case. The final section compares the large systole problem with the analogous large girth problem for regular graphs.
description: 16 pages
title: Die Skulptur Johannes der Täufer mit Taufschale in der St. Lamberti-Kirche, Hildesheim
title: Restauratorische Untersuchung und Erstellung eines Behandlungskonzeptes
titleType: Subtitle
Creators: name: Birkenbeul, Ina
Publisher: name: HAWK Hildesheim/Holzminden/Göttingen
Year: 2002
Subjects: Conservation

description: Thema der Diplomarbeit ist eine lebensgroße, vollplastische Johannes der Täufer Skulptur, die eine Taufschale hält. Die Skulptur wurde 1753 vom Hannoveraner Hofbildhauer Johann Friedrich Ziesenis (1715 – 1787) gefertigt. Die Fassung stammt von Hofvergolder Johann August Bartels (1723-1805), ebenfalls Hannover. In der kunstgeschichtlichen Betrachtung wurden Ziesenis’ Werke näher beleuchtet und der Typus von Johannes-Figuren als Träger von Taufschalen thematisiert. Die Objektgeschichte wurde rekonstruiert.
Die technologische Untersuchung der Skulptur erbrachte - stark verkürzt - folgende Ergebnisse: Die aus Lindenholz gefertigte Skulptur besteht aus einem Stammblock und einer Vielzahl von Anstückungen. Die Holzverbindungen sind Dübel in ungewöhnlich hoher Anzahl. Bei der Fassung handelt es sich um eine Ganzmetall - Polychromie, die nicht überfasst wurde, jedoch mehrfach überarbeitet wurde. Die ursprüngliche Fassung besteht aus einer weißen Grundierung (Kreide und tierischer Leim), die mit bandartigen Tremolierungen gestaltet wurde. Für die Glanzgoldpartien wurde roter Bolus unterlegt. Die Mattgoldpartien liegen auf gelbem Bolus. Originale Überzüge konnten für die vergoldeten Bereiche nicht festgestellt werden. Die übrigen Partien der Skulptur wurden mit einer Silberauflage versehen, die auf weißem Untergrund (Bleiweiß) liegt. Die weitere Gestaltung dieser Fassungsbereiche konnte nicht endgültig geklärt werden. Es wurden vier spätere Überzüge festgestellt, wobei auf der Oberfläche der vorletzten Überzuges Zinnpartikel aufliegen, die heute nahezu schwarz erscheinen.
Neben den Befunden zum Erhaltungszustand wurde die Standortsituation betrachtet, durchzuführende Konservierungsmaßnahmen festgelegt und Vorschläge zur Restaurierung erarbeitet.
Magnetic nanowires generated via the waterborne desalting transition pathway
Creators: name: Yan, M.
name: Fresnais, J.
name: Sekar, S.
name: Chapel, J. -P.
name: Berret, J. -F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report a simple and versatile waterborne synthesis of magnetic nanowires following the innovative concept of electrostatic "desalting transition". Highly persistent superparamagnetic nanowires are generated from the controlled assembly of oppositely charged nanoparticles and commercially available polyelectrolytes. The wires have diameters around 200 nm and lengths comprised between 1 μm and 1/2 mm, with either positive or negative charges on their surface. Beyond, we show that this soft-chemistry assembly approach is a general phenomenon independent of the feature of the macromolecular building blocks, opening significant perspectives for the design of multifunctional materials.
description: 11 pages, 4 figures
Near-IR Atlas of S0-Sa galaxies (NIRS0S)
Creators: name: Laurikainen, E.
name: Salo, H.
name: Buta, R.
name: Knapen, J. H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: An atlas of Ks-band images of 206 early-type galaxies is presented, including 160 S0-S0/a galaxies, 12 ellipticals, and 33 Sa galaxies. A majority of the Atlas galaxies belong to a magnitude-limited (mB<12.5 mag) sample of 185 NIRS0S (Near-IR S0 galaxy Survey) galaxies. To assure that mis-classified S0s are not omitted, 25 ellipticals from RC3 classified as S0s in the Carnegie Atlas were included in the sample. The images are 2-3 mag deeper than 2MASS images. Both visual and photometric classifications are made. Special attention is paid to the classification of lenses, coded in a systematic manner. A new lens-type, called a 'barlens', is introduced. Also, boxy/peanut/x-shaped structures are identified in many barred galaxies, even-though the galaxies are not seen in edge-on view, indicating that vertical thickening is not enough to explain them. Multiple lenses appear in 25% of the Atlas galaxies, which is a challenge to the hierarchical evolutionary picture of galaxies. Such models need to explain how the lenses were formed and survived in multiple merger events that galaxies may have suffered during their lifetimes. Following the early suggestion by van den Bergh, candidates of S0c galaxies are shown, which galaxies are expected to be former Sc-type spirals stripped out of gas.
description: 67 pages (include 16 figures and 6 tables). Accepted to MNRAS 2011 June 17
Impurity in a sheared inelastic Maxwell gas
Creators: name: Garzó, V.
name: Trizac, E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Boltzmann equation for inelastic Maxwell models is considered in order to investigate the dynamics of an impurity (or intruder) immersed in a granular gas driven by a uniform shear flow. The analysis is based on an exact solution of the Boltzmann equation for a granular binary mixture. It applies for conditions arbitrarily far from equilibrium (arbitrary values of the shear rate $a$) and for arbitrary values of the parameters of the mixture (particle masses $m_i$, mole fractions $x_i$, and coefficients of restitution $α_{ij}$). In the tracer limit where the mole fraction of the intruder species vanishes, a non equilibrium phase transition takes place. We thereby identity ordered phases where the intruder bears a finite contribution to the properties of the mixture, in a region of parameter space that is worked out in detail. These findings extend previous results obtained for ordinary Maxwell gases, and further show that dissipation leads to new ordered phases.
Shaping an Itinerant Quantum Field by Dissipation
Creators: name: Porras, Diego
name: García-Ripoll, Juan José
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that inducing sidebands in the emission of a single emitter into a one dimensional waveguide, together with a dissipative re-pumping process, a photon field is cooled down to a squeezed vacuum. Our method does not require to be in the strong coupling regime, works with a continuum of propagating field modes and it may lead to sources of tunable multimode squeezed light in circuit QED systems.
description: 4 pages, 3 figures
The Second Stokes Problem with Specular - Diffusive Boundary Conditions in Kinetic Theory
Creators: name: Akimova, V. A.
name: Latyshev, A. V.
name: Yushkanov, A. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: 82B40, 80A99, 81V80

description: The second Stokes problem with specular - diffusive boundary conditions of the kinetic theory is considered. The new method of the decision of the boundary problems of the kinetic theory is applied. The method allows to receive the decision with any degree of accuracy. At the basis of a method lays the idea of representation of a boundary condition on distribution function in the form of a source in the kinetic equation. By means of integrals Fourier the kinetic equation with a source is reduced to the integral equation of Fredholm type of the second kind. The decision is received in the form of Neumann's series.
description: 20 pages, 2 figures
G.G. Leibnitii Notae in partes duas priores Principiorum Philos. Cartesii nunc primum in lucem ex communicatione Joh. Bernoulli
Creators: name: Leibniz, Gottfried Wilhelm
name: Bernoulli, Johann
Publisher: name: [s.n.]
Year: 1646

description: Lateinisch
description: Druck Guhrauer, Gottschalk Eduard. - 1844
description: Verzeichnung=Description=Inventaire Juni 2015 HAN-Katalogisierungsregeln Rekatalogisierung nach Standortverzeichnis und Original
description: Gottfried Wilhelm Leibniz
description: Foliierung mit Bleistift 1-35 und Paginierung mit Tinte 1-69
description: Öffentliche Bibliothek der Universität Basel