cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The inverse-Compton ghost HDF 130 and the giant radio galaxy 6C 0905+3955: matching an analytic model for double radio source evolution
Creators: name: Mocz, Philip
name: Fabian, A. C.
name: Blundell, Katherine M.
name: Goodall, P. T.
name: Chapman, S. C.
name: Saikia, D. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present new GMRT observations of HDF 130, an inverse-Compton (IC) ghost of a giant radio source that is no longer being powered by jets. We compare the properties of HDF 130 with the new and important constraint of the upper limit of the radio flux density at 240 MHz to an analytic model. We learn what values of physical parameters in the model for the dynamics and evolution of the radio luminosity and X-ray luminosity (due to IC scattering of the cosmic microwave background (CMB)) of a Fanaroff-Riley II (FR II) source are able to describe a source with features (lobe length, axial ratio, X-ray luminosity, photon index and upper limit of radio luminosity) similar to the observations. HDF 130 is found to agree with the interpretation that it is an IC ghost of a powerful double-lobed radio source, and we are observing it at least a few Myr after jet activity (which lasted 5--100 Myr) has ceased. The minimum Lorentz factor of injected particles into the lobes from the hotspot is preferred to be $γ\sim10^3$ for the model to describe the observed quantities well, assuming that the magnetic energy density, electron energy density, and lobe pressure at time of injection into the lobe are linked by constant factors according to a minimum energy argument, so that the minimum Lorentz factor is constrained by the lobe pressure. We also apply the model to match the features of 6C 0905+3955, a classical double FR II galaxy thought to have a low-energy cutoff of $γ\sim10^4$ in the hotspot due to a lack of hotspot inverse-Compton X-ray emission. The models suggest that the low-energy cutoff in the hotspots of 6C 0905+3955 is $γ\gtrsim 10^3$, just slightly above the particles required for X-ray emission.
description: 9 pages, 3 figures
Geometric analysis of entangled qubit pairs
Creators: name: Ramsak, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Two entangled electron spins, or qubits, are analyzed in terms of ordinary three-dimensional space geometric properties, as are the angles between their angular momenta. This formulation allows concurrence, a measure of quantum entanglement, to be expressed as expectation values of trigonometric functions of the azimuthal angle between the two angular momenta.
Königinnen der Merowinger. Adelsgräber aus den Kirchen von Köln, Saint-Denis, Chelles und Frankfurt am Main
Creators: name: Bertram, Marion
Publisher: name: Acta Praehistorica et Archaeologica
Year: 2020

description: Rezension zu: Königinnen der Merowinger. Adelsgräber aus den Kirchen von Köln, Saint-Denis, Chelles und Frankfurt am Main. Hrsg. von Egon Wamers und Patrick Périn. Katalog zum deutsch-französischen Ausstellungsprojekt des Archäologischen Museums Frankfurt und des Musée d’Archéologie nationale in Saint-Germain-en-Laye in Zusammenarbeit mit der Domschatzkammer Köln. Verlag Schnell und Steiner, Regensburg 2013 (2. Aufl.). 200 S. ISBN 978-3-942227-04-9
description: Acta Praehistorica et Archaeologica, Bd. 45 (2013)
Against gender-based violence: from Italian debate to intercultural dialogue
Creators: name: Redazione, La
Publisher: name: Centro di Ateneo per le Biblioteche dell'Università di Napoli 'Federico II'
Year: 2015

description: Against gender-based violence: from Italian debate to intercultural dialogue
description: La camera blu. Rivista di studi di genere, Vol 10, N° 10 (2014): Against gender-based violence: from Italian debate to intercultural dialogue
Protecting Raisins Against Insects During Drying and Storage with Malathion-Treated Trays
Creators: name: Nelson, Howard D.
name: Spitler, Garth H.
name: Yerington, Albert P.
name: Nelson, Howard D.
name: Spitler, Garth H.
name: Yerington, Albert P.
Publisher: name: Unknown
Year: 1963
Subjects: subject: Crop Production/Industries
subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies

description: Excerpts from the report: The use of malathion-treated trays for protecting grapes against insects while drying was first explored by personnel of the American Cyanamid Co. , Fresno County Extension Service, and the Raisin Advisory Board. The treatment appeared very promising because it employed an insecticide with very low mammalian toxicity, and it was a method that would not interfere with the normal processing of the crop. Tolerances of 8 p.p.m. of malathion have been approved and established by the Food and Drug Administration for most of the fresh fruits, including grapes, and many of the leafy vegetables that are eaten raw. These tolerances apply to malathion residues obtained from preharvest treatments. The tests described in this report are a followup of the one mentioned above. The objective was expanded to include not only the evaluation of the effectiveness of treatment in preventing insect infestation of the raisins while drying, but also the effectiveness of the residual deposit in protecting the raisins against damage during storage. The aim was to develop one single treatment to protect raisins from the time they are picked as grapes and placed on the drying trays to the time they are brought to the plants to be cleaned, processed, and packaged.
Marketing Farmers' Stock Peanuts in the Virginia-North Carolina Area
Creators: name: Jones, E. Walton
name: King, Richard A.
name: Biggs, Gilbert W.
name: Jones, E. Walton
name: King, Richard A.
name: Biggs, Gilbert W.
Publisher: name: Unknown
Year: 1963
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Excerpts from the report: This report, a detailed study of marketing peanuts in the Virginia-North Carolina area and the second in a series of three, is based on a grower survey by Farmer Cooperative Service and North Carolina State College. Aim of these reports is to determine how to increase efficiency of marketing farmers' stock peanuts in North Carolina and Virginia. Specific objectives of this phase of the research program reported here were: 1. To determine the organization of peanut producing farms and to identify peanut production practices that affect the marketing of farmers' stock peanuts. 2. To determine such marketing facilities now available to peanut producers as transportation, storage, and market information. 3. To determine the number and types of market outlets available to producers and to describe the services offered and prices charged by these outlets. 4. To describe and analyze marketing practices of producers in terms of selection of a time and place to sell. 5. To examine farmer opinions regarding the present market system and alternative marketing techniques.
BOOTES Observation of GRB 080603B
Creators: name: Jelinek, Martin
name: Gorosabel, Javier
name: Castro-Tirado, Alberto J.
name: Postigo, Antonio de Ugarte
name: Guziy, Sergei
name: Cunniffe, Ronan
name: Kubanek, Petr
name: Prouza, Michael
name: Vitek, Stanislav
name: Hudec, Rene
name: Reglero, Victor
name: Sabau-Graziati, Lola
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on multicolor photometry of long GRB080603B afterglow from BOOTES-1B and BOOTES-2. The optical afterglow has already been reported to present a break in the optical lightcurve at 0.12+/-0.2 days after the trigger. We construct the lightcurve and the spectral energy distribution and discuss the nature of the afterglow.
Tippe Top Equations and Equations for the Related Mechanical Systems
Creators: name: Rutstam, Nils
Publisher: name: arXiv
Year: 2012
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The equations of motion for the rolling and gliding Tippe Top (TT) are nonintegrable and difficult to analyze. The only existing arguments about TT inversion are based on analysis of stability of asymptotic solutions and the LaSalle type theorem. They do not explain the dynamics of inversion. To approach this problem we review and analyze here the equations of motion for the rolling and gliding TT in three equivalent forms, each one providing different bits of information about motion of TT. They lead to the main equation for the TT, which describes well the oscillatory character of motion of the symmetry axis $\mathbf{\hat{3}}$ during the inversion. We show also that the equations of motion of TT give rise to equations of motion for two other simpler mechanical systems: the gliding heavy symmetric top and the gliding eccentric cylinder. These systems can be of aid in understanding the dynamics of the inverting TT.
Determinants of Managerial Innovation and their impact on the competitiveness, performance and sustainability of SMFs Moroccan
Creators: name: Naima EL HAOUD
name: Youssef ELBAHAR
Publisher: name: Zenodo
Year: 2023

description: This paper explores the factors influencing managerial innovation and its impact on competitiveness, performance and longevity of small and medium-sized firms(SMFs) in Morocco. Drawing on a constructivist paradigm and methodological approach qualitative, the study uses semi-structured interviews with four business leaders to collect data, which is then analyzed using New Nvivo software. 
Three elements keys emerge from the analysis: market orientation, organizational learning and absorption capacity. These components, in synergistic interaction with innovation managerial, contribute to a competitive advantage which positively affects performance and the sustainability of the firm. The study thus underlines the essential role that these variables play in the creation of agile, innovative and resilient businesses.
Neutron diffraction study of stability and phase transitions in Cu-Sn-In alloys as alternative Pb-free solders
Creators: name: Aurelio, G.
name: Sommadossi, S. A.
name: Cuello, G. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work we present an experimental study of structure and phase stability in ternary Cu-Sn-In alloys around 55 at.% Cu in the temperature range 100^{\circ}C < T < 550^{\circ}C. We have followed in real-time the sequence of phase transformations in succesive heating and cooling ramps, using state-of-the-art neutron powder thermodiffractometry. These experiments were complemented with calorimetric studies of the same alloys. Our results give experimental support to the current assessment of the ternary phase diagram in this composition and temperature range, yielding the sequence of transitions η-> η+ L -> ε+ L with transformation temperatures of 210^{\circ}C and 445^{\circ}C, respectively. The use of neutrons allowed to overcome common difficulties in phase identification with powder XRD due to absorption and preferred orientation issues. Even the transitions to liquid phases could be successfully identified and monitored in situ, turning this technique into a valuable tool for phase diagram studies of emerging lead-free solder candidates.
The conceptual origins of gravitational lensing
Creators: name: Valls-Gabaud, David
Publisher: name: arXiv
Year: 2012
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We critically examine the evidence available of the early ideas on the bending of light due to a gravitational attraction, which led to the concept of gravitational lenses, and attempt to present an undistorted historical perspective. Contrary to a widespread but baseless claim, Newton was not the precursor to the idea, and the first Query in his {\sl Opticks} is totally unrelated to this phenomenon. We briefly review the roles of Voltaire, Marat, Cavendish, Soldner and Einstein in their attempts to quantify the gravitational deflection of light. The first, but unpublished, calculations of the lensing effect produced by this deflection are found in Einstein's 1912 notebooks, where he derived the lensing equation and the formation of images in a gravitational lens. The brief 1924 paper by Chwolson which presents, without calculations, the formation of double images and rings by a gravitational lens passed mostly unnoticed. The unjustly forgotten and true pioneer of the subject is F. Link, who not only published the first detailed lensing calculations in 1936, nine months prior to Einstein's famous paper in {\sl Science}, but also extended the theory to include the effects of finite-size sources and lenses, binary sources, and limb darkening that same year. Link correctly predicted that the microlensing effect would be easier to observe in crowded fields or in galaxies, as observations confirmed five decades later. The calculations made by Link are far more detailed than those by Tikhov and Bogorodsky. We discuss briefly some papers of the early 1960s which marked the renaissance of this theoretical subject prior to the first detection of a gravitational lens in 1979, and we conclude with the unpublished chapter of Petrou's 1981 PhD thesis addressing the microlensing of stars in the Magellanic clouds by dark objects in the Galactic halo.
description: Published in "Albert Einstein Century International Conference", AIP Conference Proceedings, Volume 861, pp. 1163-1171 (2006)
Fixed points of coprime operator groups
Creators: name: Acciarri, C.
name: Shumyatsky, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20D45 (Primary)

description: Let m be a positive integer and A an elementary abelian group of order q^r with r greater than or equal to 2 acting on a finite q'-group G. We show that if for some integer d such that 2^{d} is less than or equal to (r-1) the dth derived group of C_{G}(a) has exponent dividing m for any nontrivial element a in A, then $G^{(d)}$ has {m,q,r}-bounded exponent and if $γ_{r-1}(C_G(a))$ has exponent dividing m for any nontrivial element a in A, then $γ_{r-1}(G)$ has {m,q,r}-bounded exponent.
description: 21 pages
On the structure of fixed-point sets of asymptotically regular semigroups
Creators: name: Wiśnicki, Andrzej
Publisher: name: arXiv
Year: 2012
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We extend a few recent results of Górnicki (2011) asserting that the set of fixed points of an asymptotically regular mapping is a retract of its domain. In particular, we prove that in some cases the resulting retraction is Hölder continuous. We also characterise Bynum's coefficients and the Opial modulus in terms of nets.
description: 11 pages
GLACIER and related R&D
Creators: name: Curioni, Alessandro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Liquid argon detectors, with mass up to 100 kton, are being actively studied in the context of proton decay searches, neutrino astrophysics and for the next generation of long baseline neutrino oscillation experiments to study the neutrino mass hierarchy and CP violation in the leptonic sector. The proposed Giant Liquid Argon Charge Imaging ExpeRiment (GLACIER) offers a well defined conceptual design for such a detector. In this paper we present the GLACIER design and some of the R&D activities pursued within the GLACIER.
description: 7 pages, 4 figures, to appear in the proceedings of the 5th TPC Symposium, Paris 2010
ARCHITRAVE – 'Kunst und Architektur in Paris und Versailles im Spiegel deutscher Reiseberichte des Barock' / ARCHITRAVE – 'Art et architecture à Paris et Versailles dans les récits de voyageurs allemands à l’époque baroque'
Creators: name: Redaktion, Die
Publisher: name: Deutsches Forum für Kunstgeschichte (DFK Paris): Jahresbericht / Rapport annuel
Year: 2020

description: -
description: Deutsches Forum für Kunstgeschichte (DFK Paris): Jahresbericht / Rapport annuel, Jahresbericht / Rapport annuel 2018/2019
Clause/Term Resolution and Learning in the Evaluation of Quantified Boolean Formulas
Creators: name: Giunchiglia, E.
name: Narizzano, M.
name: Tacchella, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Resolution is the rule of inference at the basis of most procedures for automated reasoning. In these procedures, the input formula is first translated into an equisatisfiable formula in conjunctive normal form (CNF) and then represented as a set of clauses. Deduction starts by inferring new clauses by resolution, and goes on until the empty clause is generated or satisfiability of the set of clauses is proven, e.g., because no new clauses can be generated. In this paper, we restrict our attention to the problem of evaluating Quantified Boolean Formulas (QBFs). In this setting, the above outlined deduction process is known to be sound and complete if given a formula in CNF and if a form of resolution, called Q-resolution, is used. We introduce Q-resolution on terms, to be used for formulas in disjunctive normal form. We show that the computation performed by most of the available procedures for QBFs --based on the Davis-Logemann-Loveland procedure (DLL) for propositional satisfiability-- corresponds to a tree in which Q-resolution on terms and clauses alternate. This poses the theoretical bases for the introduction of learning, corresponding to recording Q-resolution formulas associated with the nodes of the tree. We discuss the problems related to the introduction of learning in DLL based procedures, and present solutions extending state-of-the-art proposals coming from the literature on propositional satisfiability. Finally, we show that our DLL based solver extended with learning, performs significantly better on benchmarks used in the 2003 QBF solvers comparative evaluation.
'Zwischen Kunst, Wissenschaft und Besatzungspolitik' / 'Entre art, science et politique d’occupation'
Creators: name: Redaktion, Die
Publisher: name: Deutsches Forum für Kunstgeschichte (DFK Paris): Jahresbericht / Rapport annuel
Year: 2020

description: -
description: Deutsches Forum für Kunstgeschichte (DFK Paris): Jahresbericht / Rapport annuel, Jahresbericht / Rapport annuel 2018/2019
G'O'ZA QATOR ORALARIGA BUG'DOYNI QATORLAB EKISH QURILMASI
Creators: name: Xayitov, T.A.
name: Beknazarov, A.J.
Publisher: name: Zenodo
Year: 2023

description: Mazkur maqolada  qator oralariga g'alla ekishda ishlatiladigan kombinatsilashgan mashinanihg tuzilishi, texnik tavsifi va ishchi sektsiyasini texnologik ish jarayonini asoslash keltirilgan.
Quarkonium at T>0
Creators: name: Morita, Kenji
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We report recent progress on theoretical investigations of quarkonia at finite temperature. We discuss medium modification of charmonia and bottomonia from a viewpoint of local operators and point out that while charmonia are sensitive to the deconfinement transition bottomonia will be modified at much higher temperatures.
description: Talk given at XLI International Symposium of Multiparticle Dynamics (ISMD 2011), 26-30, September 2011, Miyajima-Island, Hiroshima, Japan. 6 pages, 4 figures. To be published in Prog. Theor. Phys. Suppl
The Sun was not born in M 67
Creators: name: Pichardo, Barbara
name: Moreno, Edmundo
name: Allen, Christine
name: Bedin, Luigi R.
name: Bellini, Andrea
name: Pasquini, Luca
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using the most recent proper-motion determination of the old, Solar-metallicity, Galactic open cluster M 67, in orbital computations in a non-axisymmetric model of the Milky Way, including a bar and 3D spiral arms, we explore the possibility that the Sun once belonged to this cluster. We have performed Monte Carlo numerical simulations to generate the present-day orbital conditions of the Sun and M 67, and all the parameters in the Galactic model. We compute 3.5 \times 10^5 pairs of orbits Sun-M 67 looking for close encounters in the past with a minimum distance approach within the tidal radius of M 67. In these encounters we find that the relative velocity between the Sun and M 67 is larger than 20 km/s. If the Sun had been ejected from M 67 with this high velocity by means of a three-body encounter, this interaction would destroy an initial circumstellar disk around the Sun, or disperse its already formed planets. We also find a very low probability, much less than 10^-7, that the Sun was ejected from M 67 by an encounter of this cluster with a giant molecular cloud. This study also excludes the possibility that the Sun and M 67 were born in the same molecular cloud. Our dynamical results convincingly demonstrate that M67 could not have been the birth cluster of our Solar System.
description: Astronomical Journal accepted (35 pages, 9 figures)
Equilibrium and Disorder-induced behavior in Quantum Light-Matter Systems
Creators: name: Mascarenhas, Eduardo
name: Heaney, Libby
name: Aguiar, M. C. O.
name: Santos, Marcelo França
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We analyze equilibrium properties of coupled-doped cavities described by the Jaynes-Cummings- Hubbard Hamiltonian. In particular, we characterize the entanglement of the system in relation to the insulating-superfluid phase transition. We point out the existence of a crossover inside the superfluid phase of the system when the excitations change from polaritonic to purely photonic. Using an ensemble statistical approach for small systems and stochastic-mean-field theory for large systems we analyze static disorder of the characteristic parameters of the system and explore the ground state induced statistics. We report on a variety of glassy phases deriving from the hybrid statistics of the system. On-site strong disorder induces insulating behavior through two different mechanisms. For disorder in the light-matter detuning, low energy cavities dominate the statistics allowing the excitations to localize and bunch in such cavities. In the case of disorder in the light- matter coupling, sites with strong coupling between light and matter become very significant, which enhances the Mott-like insulating behavior. Inter-site (hopping) disorder induces fluidity and the dominant sites are strongly coupled to each other.
description: about 10 pages, 12 figures
On Simulating Type Ia Supernovae
Creators: name: Calder, Alan C.
name: Krueger, Brendan K.
name: Jackson, Aaron P.
name: Townsley, Dean M.
name: Brown, Edward F.
name: Timmes, Francis X.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Type Ia supernovae are bright stellar explosions distinguished by standardizable light curves that allow for their use as distance indicators for cosmological studies. Despite their highly successful use in this capacity, the progenitors of these events are incompletely understood. We describe simulating type Ia supernovae in the paradigm of a thermonuclear runaway occurring in a massive white dwarf star. We describe the multi-scale physical processes that realistic models must incorporate and the numerical models for these that we employ. In particular, we describe a flame-capturing scheme that addresses the problem of turbulent thermonuclear combustion on unresolved scales. We present the results of our study of the systematics of type Ia supernovae including trends in brightness following from properties of the host galaxy that agree with observations. We also present performance results from simulations on leadership-class architectures.
description: 13 pages, 3 figures, accepted to proceedings of the Conference on Computational Physics, Oct. 30 - Nov. 3, 2011
Are Adolescents in One‐Parent Families a Previously Unnoticed Group in Inclusive Career Guidance?
Creators: name: Klein, Jerusha
name: Driesel‐Lange, Katja
name: Ohlemann, Svenja
Publisher: name: Cogitatio
Year: 2022
Subjects: subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::300 Sozialwissenschaften
subject: adolescents
subject: career competence
subject: career education
subject: multiple linear regression
subject: one‐parent family
subject: risk group

description: In Germany, schools are largely responsible for adolescents’ career development. Corresponding interventions in career guidance must take into account various endogenous and exogenous factors of individualized development to foster successful post‐school transitions. Parents, in particular, are one of the most significant influencing factors when it comes to shaping after‐school plans usually having a highly positive effect along with teacher support. Children in one‐parent families constitute a group that has received little attention so far in the context of career guidance analysis. They are at a higher risk of social decline into precarious circumstances and of living in families with lower education levels as well as less parental care time. In addition, one‐parent families more often report that they are unable to adequately support their children concerning career development, ultimately impacting the children’s post‐school transition. Based on the theoretical model of career competence, a sample from eight German schools (N = 1998) is used to investigate to what extent adolescents in one‐parent families differ from their peers in other family compositions regarding both support and development of career competence. Each school’s location and teacher support are included in the calculations. This study shows that adolescents in one‐parent families display below‐average levels concerning three of the analysed facets (occupational knowledge, exploration, and self‐regulation).
title: Examining Ambidexterity Strategies: Organic Development vs. Mergers and Acquisitions - A Comparative Analysis of Organisational Growth Approaches
Creators: name: Barutia, Andrei
Publisher: name: TU Wien
Year: 2024
Subjects: subject: Internal ambidexterity
subject: M&A
subject: Innovation
subject: Culture
subject: Organisational flexibility
subject: leadership

description: Ambidexterity reflects the organisational capability to harmonize exploitation and exploration activities seamlessly. Some organisations achieve this state by using internal mechanisms to further explore, others are keener on pursuing external options, like M&A. While the academic research literature delving into the concept, creation and examples of organisational ambidexterity is abundant, there is a literature gap in the extrusion of factors that compare and provide a better positioning towards internal or external ambidexterity. This study, through the main research question: “What are the supporting and disruptive factors between internal (organisational) and external (M&A) ambidexterity in organisations?”aims to investigate which factors contribute to the birth and further development of exploration through internal means and which would indicate a better organisational fit through ambidexterity by external means. To answer this pressing question, we opted for qualitative research and conducted several semi-structured interviews with high level managers and industry professionals from companies that either innovate internally, use M&A as the primary exploration utility, or do both. Once we had conducted the interviews, we transcribed and coded them according to Mayring's theory of qualitative analysis. We discovered multiple factors that could lead to the birth of either the internal or external type of ambidexterity, which we then condensed in five overarching aspects comparing them with internal and external ambidexterity creation. Because of the small concentration of literature taking into consideration this comparison, it is difficult for organisations that are in search of guiding to know which path is better suited to them. Organisations that have a culture of experimentation, that can accept the risks of their experiments, know their identity and have leaders that through their faith in them push them to be better and more innovative, and moreover provide them with the right organisational structure and resources are the ones where the growth of internal ambidexterity is the right choice. If M&A is the answer to one’s ambidexterity quest, then the organisations should be flexible, with a welcoming, integrating culture and leaders that are set on collaboration outside of their companies’ boundaries.
Finite size effects on the statistical angle of an electron induced dyon in proximity to a topological insulator
Creators: name: Sun, Sichun
name: Karch, Andreas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A pointlike electric charge close to the surface of a three dimensional topological insulator induces a magnetic monopole mirror charge. We study the distance dependence of the statistical angle describing this induced dyon system. We find that the total angular momentum, which sometimes is used as signature of the statistical angle, for an electron outside a finite size spherical or tube shaped topological insulator is zero for any finite distance between the electron and the surface. However, we show that in the 2-electron system one can indeed isolate a non-trivial statistical angle for intermediate size loops, that is loops much larger than the distance of the charge to the sample but much smaller than the size of the sample. The necessity for this limit confirms the 2+1 dimensional nature of the non-trivial statistical angle found in previous work. Our results clarify the conditions under which the statistical angle of this system could be measured in real experiments.
description: 8 pages, 3 figures
Java Privacy Guard - The Openpgp Message Format And An Implementation In Java
Creators: name: More, Stefan
Publisher: name: Zenodo
Year: 2015
Subjects: Cryptography
Java Programming
Public Key Crypto systems
IT Security
Information Security
Web of Trust
OpenPGP
Infosec

description: OpenPGP is an Internet standard for securely sending messages over insecure networks like the Internet. It provides end-to-end encryption by combining asymmetric and symmetric cryptography. Trust in any networkcomponent except the sender’s and receiver’s computer is not needed. Furthermore, it guarantees for the integrity of messages using digital signatures. OpenPGP also provides a system for verification of the identity of partici pants of an communication using a trust model called the Web of Trust.

In this thesis we give an overview of the principles of OpenPGP and its underlying Internet standard, the OpenPGP Message Format. Additionally, we explain in which ways OpenPGP implementations are used, its functionalities and inner workings.

Furthermore, we show an example on the basis of our implementation of the OpenPGP standard in Java using the IAIK-JCE cryptographic library. We also discuss considerations regarding security and usability.
description: Bachelor's Thesis
BUG'DOY EKISH VA UG'IT SEPISH MASHINASI TEXNOLOGIK ISH  JARAYONINI ASOSLASH
Creators: name: Xayitov, T.A.
name: Beknazarov, A.J
Publisher: name: Zenodo
Year: 2023

description: Mazkur maqolada  qator oralariga g'alla ekish va bir yula o'gitlashda ishlatiladigan kombinatsilashgan mashinanihg ishchi sektsiyasini texnologik ish jarayonini asoslash keltirilgan.
Detailed study of N,N'-(diisopropylphenyl)- terrylene-3,4:11,12-bis(dicarboximide) as electron acceptor for solar cells application
Creators: name: Gorenflot, Julien
name: Sperlich, Andreas
name: Baumann, Andreas
name: Rauh, Daniel
name: Vasilev, Aleksey
name: Li, Chen
name: Baumgarten, Martin
name: Deibel, Carsten
name: Dyakonov, Vladimir
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We report on terrylene-3,4:11,12-bis(dicarboximide) (TDI) as electron acceptor for bulk-heterojunction solar cells using poly(3-hexyl thiophene) (P3HT) as complementary donor component. Enhanced absorption was observed in the blend compared to pure P3HT. As shown by the very efficient photoluminescence (PL) quenching, the generated excitons are collected at the interface between the donor and acceptor, where they separate into charges which we detect by photoinduced absorption and electron-spin resonance (ESR). Time-of-flight (TOF) photoconductivity measurements reveal a good electron mobility of 10-3 cm2 V-1 s-1 in the blend. Nevertheless, the photocurrent in solar cells was found to be surprisingly low. Supported by the external quantum efficiency (EQE) spectrum as well as morphological studies by way of X-ray diffraction and atomic force microscopy, we explain our observation by the formation of a TDI hole blocking layer at the anode interface which prevents the efficiently generated charges to be extracted.
description: Original research article, 9 pages, 10 figures, 1 table
Quantum walk on distinguishable non-interacting many-particles and indistinguishable two-particle
Creators: name: Chandrashekar, C. M.
name: Busch, Th.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an investigation of many-particle quantum walks in systems of non-interacting distinguishable particles. Along with a redistribution of the many-particle density profile we show that the collective evolution of the many-particle system resembles the single-particle quantum walk evolution when the number of steps is greater than the number of particles in the system. For non-uniform initial states we show that the quantum walks can be effectively used to separate the basis states of the particle in position space and grouping like state together. We also discuss a two-particle quantum walk on a two- dimensional lattice and demonstrate an evolution leading to the localization of both particles at the center of the lattice. Finally we discuss the outcome of a quantum walk of two indistinguishable particles interacting at some point during the evolution.
description: 8 pages, 7 figures, To appear in special issue: "quantum walks" to be published in Quantum Information Processing
Die Nordgrenze der Bandkeramikkultur auf der Länge von Magdeburg
Creators: name: Kupka, Paul L. B.
Publisher: name: Jahresschrift für mitteldeutsche Vorgeschichte
Year: 2020

description: Jahresschrift für mitteldeutsche Vorgeschichte, Bd. 17 (1929): Jahresschrift für die Vorgeschichte der sächsisch-thüringischen Länder
Semi-analytical model of cosmic ray electron transport
Creators: name: Ivascenko, Alex
name: Spanier, Felix
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a numerical extension to the analytical propagation model introduced in Hein and Spanier (2008) to describe the leptonic population in the galactic disc. The model is used to derive a possible identification of the components that contribute to the leptonic cosmic ray spectrum, as measured by PAMELA, Fermi and HESS, with an emphasis on secondary e+ - e- production in collisions of cosmic ray particles with ambient interstellar medium (ISM). We find that besides secondaries, an additional source symmetric in e+ and e- production is needed to explain both the PAMELA anomaly and the Fermi bump, assuming a power-law primary electron spectrum. Our model also allows us to derive constraints for some properties of the ISM.
description: 5 pages, 2 figures
Cosmic Ray Studies with the Fermi Gamma-ray Space Telescope Large Area Telescope
Creators: name: Thompson, David J.
name: Baldini, Luca
name: Uchiyama, Yasunobu
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope provides both direct and indirect measurements of Galactic cosmic rays (CR). The LAT high-statistics observations of the 7 GeV - 1 TeV electron plus positron spectrum and limits on spatial anisotropy constrain models for this cosmic-ray component. On a Galactic scale, the LAT observations indicate that cosmic- ray sources may be more plentiful in the outer Galaxy than expected or that the scale height of the cosmic-ray diffusive halo is larger than conventional models. Production of cosmic rays in supernova remnants (SNR) is supported by the LAT gamma-ray studies of several of these, both young SNR and those interacting with molecular clouds.
description: 20 pages, 12 figures, to be published in Astroparticle Physics
Report On Case Analyses, Success Factors And Best Practices
Creators: name: S3C Consortium
Publisher: name: Zenodo
Year: 2014
Subjects: smart energy behaviour, smart grid projects, end user engagement, target groups, products and services, incentives, pricing schemes, end user feedback, project communication, stakeholders, smart energy communities, market structures, scalability, replicability

description: This deliverable describes the outcomes of the assessment of cause-impact relations, best practices, success factors and pitfalls, based on the case studies of the S3C Family of Projects described in deliverable 3.2.
Geometric phase kickback in a mesoscopic qubit-oscillator system
Creators: name: Vacanti, G.
name: Fazio, R.
name: Kim, M. S.
name: Palma, G. M.
name: Paternostro, M.
name: Vedral, V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We illustrate a reverse Von Neumann measurement scheme in which a geometric phase induced on a quantum harmonic oscillator is measured using a microscopic qubit as a probe. We show how such a phase, generated by a cyclic evolution in the phase space of the harmonic oscillator, can be kicked back on the qubit, which plays the role of a quantum interferometer. We also extend our study to finite-temperature dissipative Markovian dynamics and discuss potential implementations in micro and nano-mechanical devices coupled to an effective two-level system.
description: RevTeX4, 4 pages, 2 figures
A covering theory of special relativity
Creators: name: Liu, Daqing
name: Li, Xinghua
name: Wang, Yanshen
Publisher: name: arXiv
Year: 2011
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Under the assumption of closed-path velocity of light invariant, we show both the general expression of velocity of light in an ordinary inertial reference frame and the generalized Lorentz transformation between the ordinary inertial reference frame and the absolute (privileged) reference frame. Although such assumption can not determine theory ambiguously, some significant results can still be obtained by the assumption. Furthermore, the study shows that the relativity of simultaneity is not a universal concept.
description: 6 pages, 1 figure
Die Hamburger Neuerwerbungen
Creators: name: Osten, Gert Von Der
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 8 Nr. 10 (1955): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
ATROF-MUXIT VA TUPROQLARNING NEFT UGLEVODORODLARI BILAN IFLOSLANISHI, ULARNING REKULTIVATSIYADAN KEYIN BIOLOGIK XOSSALARINI TIKLANISHI
Creators: name: NOMOZOV, U.M.
Publisher: name: Zenodo
Year: 2023

description: Neft va neft maxsulotlarini atrof-muhitga va tuproq qoplamiga tushishi natijasida biologik xossalariga sal'biy ta'sir etib, neftga chidamsiz  mikroorganizmlar va o'simliklar kamayishiga ifloslanish darajasini ortib borish natijasida nobut bo'lishiga olib keladi.
Ausstellungskalender
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 8 Nr. 12 (1955): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
The Minimal Model Program Revisited
Creators: name: Cascini, Paolo
name: Lazić, Vladimir
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14E30

description: We give a light introduction to some recent developments in Mori theory, and to our recent direct proof of the finite generation of the canonical ring.
description: to appear in Contributions to Algebraic Geometry, EMS Series of Congress Reports
Primary neutral helium in the heliosphere
Creators: name: Mueller, Hans-Reinhard
name: Cohen, Jill H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Two years of neutral measurements by IBEX-Lo have yielded several direct observations of interstellar neutral helium and oxygen during preferred viewing seasons. Besides the interstellar signal, there are indications of the presence of secondary neutral helium and oxygen created in the heliosphere. Detailed modeling of these particle species is necessary to connect the measured fluxes to the pristine local interstellar medium while accounting for loss and production of neutral particles during their path through the heliosphere. In this contribution, global heliosphere models are coupled to analytic calculations of neutral trajectories to obtain detailed estimates of the neutral distribution function of primary interstellar helium atoms in the heliosphere, in particular in the inner heliosphere.
description: To appear in proceedings of the 10th Annual International Astrophysics Conference, March 13-18, 2011, Maui; reference: Physics of the Heliosphere: A 10-year Retrospective, J. Heerikhuisen and G. Li (Eds.), AIP Conference Proceedings 1436
Landau levels in a topological insulator
Creators: name: Schwab, P.
name: Dzierzawa, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Two recent experiments successfully observed Landau levels in the tunneling spectra of the topological insulator Bi2Se3. To mimic the influence of a scanning tunneling microscope tip on the Landau levels we solve the two-dimensional Dirac equation in the presence of a localized electrostatic potential. We find that the STM tip not only shifts the Landau levels, but also suppresses for a realistic choice of parameters the negative branch of Landau levels.
description: 4 pages
Electrical field induced shift of the Mott Metal-Insulator transition in thin films
Creators: name: Esfahani, D. Nasr
name: Covaci, L.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The ground state properties of a paramagnetic Mott insulator are investigated in the presence of an external electrical field using the inhomogeneous Gutzwiller approximation for a single band Hubbard model in a slab geometry. The metal insulator transition is shifted towards higher Hubbard repulsions by applying an electric field perpendicular to the slab. The spatial distribution of site dependent quasiparticle weight shows that the quasiparticle weight is maximum in few layers beneath the surface. Moreover only at higher Hubbard repulsion, larger than the bulk critical U, the electric field will be totally screened only for centeral cites. Our results show that by presence of an electric field perpendicular to a thin film made of a strongly correlated material, states near the surface will remain metallic while the bulk becomes insulating after some critical U. In contrast, in the absence of the electric field the surface becomes insulating before the bulk.
Quantum Kinetic Theory of Current-Induced Torques in Rashba Ferromagnets
Creators: name: Pesin, D. A.
name: MacDonald, A. H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Motivated by recent experimental studies of thin-film devices containing a single ferromagnetic layer, we develop a quantum kinetic theory of current-induced magnetic torques in Rashba-model ferromagnets. We find that current-induced spin-densities that are responsible for the switching behavior are due most essentially to spin-dependent quasiparticle lifetimes and derive analytic expressions for relevant limits of a simple model. Quantitative model parameter estimates suggest that spin-orbit coupling in the adjacent metal normal magnetic layer plays an essential role in the strength of the switching effect.
description: 5 pages
Werner Haftmann, Malerei im 20. Jahrhundert
Creators: name: Trier, Eduard
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Rezension zu: Werner Haftmann, Malerei im 20. Jahrhundert. Prestel-Verlag München. 1954. 550 Seiten, 40 Kunstdrucktafeln. 28,50 DM.
description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 8 Nr. 8 (1955): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Tierknochenfunde aus der Königspfalz Werla – Eine Studie zum Siedlungsgefüge des 10. – 12. Jahrhunderts im Harzvorland
Creators: name: Blaich, Markus C.
name: Grefen-Peters, Silke
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2020

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 86 (2017): Nachrichten aus Niedersachsens Urgeschichte
Entanglement dynamics of double Jaynes-Cummings interaction model based on geometric invariants
Creators: name: Heydari, Hoshang
name: Hoang, Duy
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate entanglement dynamics and properties of double Jaynes-Cummings model. In particular we study the dynamics of double Jaynes-Cummings model based on geometric invariants for four qubits. We show that these geometric invariants provide us with useful information about different types of entanglement during the quantum evolution of the system.
description: 7 pages
Archäologische Kommission für Niedersachsen e. V. Jahresbericht 2016
Creators: name: Bärenfänger, Rolf
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2020

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 86 (2017): Nachrichten aus Niedersachsens Urgeschichte