cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
DSTN (Distributed Sleep Transistor Network) for Low Power Programmable Logic array Design
Creators: name: Singla, Pradeep
name: Dhingra, Kamya
name: Malik, Naveen Kr.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: With the high demand of the portable electronic products, Low- power design of VLSI circuits & Power dissipation has been recognized as a challenging technology in the recent years. PLA (Programming logic array) is one of the important off shelf part in the industrial application. This paper describes the new design of PLA using power gating structure sleep transistor at circuit level implementation for the low power applications. The important part of the power gating design i.e. header and footer switch selection is also describes in the paper. The simulating results of the proposed architecture of the new PLA is shown and compared with the conventional PLA. This paper clearly shows the optimization in the reduction of power dissipation in the new design implementation of the PLA. The transient response of the power gates structure of PLA is also illustrate in the paper by using TINA-PRO software.
description: 6 pages, 7 Figures
Genetic diversity and fitness in small populations of partially asexual, self-incompatible plants
Creators: name: Navascués, Miguel
name: Stoeckel, Solenn
name: Mariette, Stephanie
Publisher: name: arXiv
Year: 2012
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: How self-incompatibility systems are maintained in plant populations is still a debated issue. Theoretical models predict that self-incompatibility systems break down according to the intensity of inbreeding depression and number of S-alleles. Other studies have explored the function of asexual reproduction in the maintenance of self-incompatibility. However, the population genetics of partially asexual, self-incompatible populations are poorly understood and previous studies have failed to consider all possible effects of asexual reproduction or could only speculate on those effects. In this study, we investigated how partial asexuality may affect genetic diversity at the S-locus and fitness in small self-incompatible populations. A genetic model including an S-locus and a viability locus was developed to perform forward simulations of the evolution of populations of various sizes. Drift combined with partial asexuality produced a decrease in the number of alleles at the S-locus. In addition, an excess of heterozygotes was present in the population, causing an increase in mutation load. This heterozygote excess was enhanced by the self-incompatibility system in small populations. In addition, in highly asexual populations, individuals produced asexually had some fitness advantages over individuals produced sexually, because sexual reproduction produces homozygotes of the deleterious allele, contrary to asexual reproduction. Our results suggest that future research on the function of asexuality for the maintenance of self-incompatibility will need to (1) account for whole-genome fitness (mutation load generated by asexuality, self-incompatibility and drift) and (2) acknowledge that the maintenance of self-incompatibility may not be independent of the maintenance of sex itself.
Here's Looking at You Kid
Creators: name: Knadler, James Walter
Publisher: name: University of Wyoming
Year: 1995
Subjects: subject: Masks (Sculpture) - Wyoming
subject: Found objects (Art) - Wyoming

description: The face of the mask is made from an old drinking fountain, with a glowing tongue where the water would have come out.
description: The tops and backs of street lights, which are not normally visible from the ground, were used to make masks inspired by Inuits, Yupiks, and Northwest Indians.
Influence of frame-dragging on magnetic null points near rotating black hole
Creators: name: Karas, V.
name: Kopacek, O.
name: Kunneriath, D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Understanding the mechanisms of particle acceleration from the vicinity of black holes poses a challenge. Electromagnetic effects are thought to be a prime suspect, but details still need an explanation. To this end, we study a three-dimensional structure of oblique magnetic fields near a rotating black hole in vacuum. It has been proposed that such a set-up can lead to efficient acceleration when plasma is injected near a magnetic null point. We focus our attention especially on the magnetic field in the immediate neighborhood of the magnetic null point, which was previously shown to occur in the equatorial plane. By employing the Line-Integral-Convolution (LIC) method, we visualize the magnetic field lines and explore the electric lines rising out of the equatorial plane. We show the magnetic field structure near the boundary of ergosphere, depending on the spin of the black hole. Electric field develops a non-vanishing component passing through the magnetic null point and ensuring efficient acceleration of charged particles from this particular location near horizon. We also examine the effect of translatory boost on the field lines. Similarly to the frame-dragging by rotation, the linear motion carries field lines along with the black hole. Position of the magnetic null point recedes from the black hole horizon as the spin parameter increases. For the extreme value of a=1 the null point can occur outside the ergosphere.
description: 13 pages, 8 figures, Classical and Quantum Gravity accepted
How to Price Shared Optimizations in the Cloud
Creators: name: Upadhyaya, Prasang
name: Balazinska, Magdalena
name: Suciu, Dan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Data-management-as-a-service systems are increasingly being used in collaborative settings, where multiple users access common datasets. Cloud providers have the choice to implement various optimizations, such as indexing or materialized views, to accelerate queries over these datasets. Each optimization carries a cost and may benefit multiple users. This creates a major challenge: how to select which optimizations to perform and how to share their cost among users. The problem is especially challenging when users are selfish and will only report their true values for different optimizations if doing so maximizes their utility. In this paper, we present a new approach for selecting and pricing shared optimizations by using Mechanism Design. We first show how to apply the Shapley Value Mechanism to the simple case of selecting and pricing additive optimizations, assuming an offline game where all users access the service for the same time-period. Second, we extend the approach to online scenarios where users come and go. Finally, we consider the case of substitutive optimizations. We show analytically that our mechanisms induce truth- fulness and recover the optimization costs. We also show experimentally that our mechanisms yield higher utility than the state-of-the-art approach based on regret accumulation.
description: VLDB2012
Ulrike Ehmig, Dangstetten IV. Die Amphoren
Creators: name: Hasenbach, Verena
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Rezension zu: Ulrike Ehmig, Dangstetten IV. Die Amphoren. Untersuchungen zur Belieferung einer Militäranlage in augusteischer Zeit und den Grundlagen archäologischer Interpretation von Fund und Befund. Forschungen und Berichte zur Vor-und Frühgeschichte in Baden-Württemberg Band 117. Konrad Theiss, Stuttgart 2010. ISBN 978-3-3062-2394-1. 336 Seiten mit 27 Abbildungen, 15 Tabellen und 36 Tafeln
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 90 2012(2014)
Astrophysics independent bounds on the annual modulation of dark matter signals
Creators: name: Herrero-Garcia, Juan
name: Schwetz, Thomas
name: Zupan, Jure
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We show how constraints on the time integrated event rate from a given dark matter (DM) direct detection experiment can be used to set a stringent constraint on the amplitude of the annual modulation signal in another experiment. The method requires only very mild assumptions about the properties of the local DM distribution: that it is temporally stable on the scale of months and spatially homogeneous on the ecliptic. We apply the method to the annual modulation signal in DAMA/LIBRA, which we compare to the bounds derived from the constraints on the time-averaged rates from XENON10, XENON100, CDMS and SIMPLE. Assuming a DM mass of 10 GeV, we show that a DM interpretation of the DAMA/LIBRA signal is excluded at 6.3sigma (4.6sigma) for isospin conserving (violating) spin-independent interactions, and at 4.9sigma for spin-dependent interactions on protons.
description: 4 pages, 4 figures
Florian Schneider, Neue Studien zur Hunsrück-Eifel-Kultur. Münchner Archäologische Forschungen 2
Creators: name: Nakoinz, Oliver
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Rezension zu: Florian Schneider, Neue Studien zur Hunsrück-Eifel-Kultur. Münchner Archäologische Forschungen 2. Verlag Marie Leidorf, Rahden /Westf. 2012. ISBN 978-3-89646-152-4. 268 Seiten, 50 Abbildungen, 166 Tabellen, 76 Tafeln, 5 Beilagen
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 92 2014(2015)
Alfons Kasper, Der Schussenrieder Bibliotheksaal und seine Schätze. — Das Schussenrieder Chorgestühl
Creators: name: Mrazek, Wilhelm
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Rezension zu: Alfons Kasper, Der Schussenrieder Bibliotheksaal und seine Schätze. — Das Schussenrieder Chorgestühl. Erolzheim/Württ., Libertas Verlag Baum 1954, 100 S., 1 Farbtafel.
description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 8 Nr. 6 (1955): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Nino Carboneri, L’architetto Francesco Gallo, 1672—1750
Creators: name: Gall, Ernst
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Rezension zu: Nino Carboneri, L’architetto Francesco Gallo, 1672—1750. Torino, Società Piemontese d’archeologia e di belle arti; nuova serie, volume II, 1954. 228 S. in 4° mit 19 Grundrissen im Text und 98 Abb. auf Tafeln.
description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 8 Nr. 7 (1955): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
A viscoplasticity model with an enhanced control of the yield surface distortion
Creators: name: Shutov, A. V.
name: Ihlemann, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Numerical Analysis (math.NA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 74C10, 74S05

description: A new model of metal viscoplasticity, which takes combined isotropic, kinematic, and distortional hardening into account, is presented. The basic modeling assumptions are illustrated using a new two-dimensional rheological analogy. This demonstrative rheological model is used as a guideline for the construction of constitutive relations. The nonlinear kinematic hardening is captured using the well-known Armstrong-Frederick approach. The distortion of the yield surface is described with the help of a so-called distortional backstress. A distinctive feature of the model is that any smooth convex saturated form of the yield surface which is symmetric with respect to the loading direction can be captured. In particular, an arbitrary sharpening of the saturated yield locus in the loading direction combined with a flattening on the opposite side can be covered. Moreover, the yield locus evolves smoothly and its convexity is guaranteed at each hardening stage. A strict proof of the thermodynamic consistency is provided. Finally, the predictive capabilities of the material model are verified using the experimental data for a very high work hardening annealed aluminum alloy 1100 Al.
description: 32 pages, 9 figures
Resolving the ultrafast dynamics of charge carriers in nanocomposites
Creators: name: Barreto, J.
name: Roger, T.
name: Kaplan, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Here we describe an optical method to determine the dynamics of optically excited carriers in nanostructured composite samples. By combining pump-probe time-resolved reflectivity with scattering measurements, we extract the characteristic times for charge carrier evolution. We use the 3D Maxwell-Garnett formulae, modified to include the Drude optical response, to model the results. The method, applied to hydrogenated amorphous silicon containing crystalline silicon nanoparticles, showed that the recombination times in the nanocrystals and in the matrix were ~4.9 ps and ~22 ps, respectively. The charge transfer time between the crystals and the matrix was ~4 ps.
Partial decode-forward for quantum relay channels
Creators: name: Savov, Ivan
name: Wilde, Mark M.
name: Vu, Mai
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: A relay channel is one in which a Source and Destination use an intermediate Relay station in order to improve communication rates. We propose the study of relay channels with classical inputs and quantum outputs and prove that a "partial decode and forward" strategy is achievable. We divide the channel uses into many blocks and build codes in a randomized, block-Markov manner within each block. The Relay performs a standard Holevo-Schumacher-Westmoreland quantum measurement on each block in order to decode part of the Source's message and then forwards this partial message in the next block. The Destination performs a novel "sliding-window" quantum measurement on two adjacent blocks in order to decode the Source's message. This strategy achieves non-trivial rates for classical communication over a quantum relay channel.
description: 7 pages, submission to the 2012 International Symposium on Information Theory (ISIT 2012), Boston, MA, USA
The kinematic of HST-1 in the jet of M87
Creators: name: Giroletti, M.
name: Hada, K.
name: Giovannini, G.
name: Casadio, C.
name: Beilicke, M.
name: Cesarini, A.
name: Cheung, C. C.
name: Doi, A.
name: Krawczynski, H.
name: Kino, M.
name: Lee, N. P.
name: Nagai, H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Aims: We aim to constrain the structural variations within the HST-1 region downstream of the radio jet of M87, in general as well as in connection to the episodes of activity at very high energy (VHE). Methods: We analyzed and compared 26 VLBI observations of the M87 jet, obtained between 2006 and 2011 with the Very Long Baseline Array (VLBA) at 1.7 GHz and the European VLBI Network (EVN) at 5 GHz. Results: HST-1 is detected at all epochs; we model-fitted its complex structure with two or more components, the two outermost of which display a significant proper motion with a superluminal velocity around ~4c. The motion of a third feature that is detected upstream is more difficult to characterize. The overall position angle of HST-1 has changed during the time of our observations from -65deg to -90deg, while the structure has moved by over 80 mas downstream. Our results on the component evolution suggest that structural changes at the upstream edge of HST-1 can be related to the VHE events.
description: Accepted for publication in A&A Letters
Dense Subgraph Maintenance under Streaming Edge Weight Updates for Real-time Story Identification
Creators: name: Angel, Albert
name: Koudas, Nick
name: Sarkas, Nikos
name: Srivastava, Divesh
Publisher: name: arXiv
Year: 2012
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Recent years have witnessed an unprecedented proliferation of social media. People around the globe author, every day, millions of blog posts, social network status updates, etc. This rich stream of information can be used to identify, on an ongoing basis, emerging stories, and events that capture popular attention. Stories can be identified via groups of tightly-coupled real-world entities, namely the people, locations, products, etc., that are involved in the story. The sheer scale, and rapid evolution of the data involved necessitate highly efficient techniques for identifying important stories at every point of time. The main challenge in real-time story identification is the maintenance of dense subgraphs (corresponding to groups of tightly-coupled entities) under streaming edge weight updates (resulting from a stream of user-generated content). This is the first work to study the efficient maintenance of dense subgraphs under such streaming edge weight updates. For a wide range of definitions of density, we derive theoretical results regarding the magnitude of change that a single edge weight update can cause. Based on these, we propose a novel algorithm, DYNDENS, which outperforms adaptations of existing techniques to this setting, and yields meaningful results. Our approach is validated by a thorough experimental evaluation on large-scale real and synthetic datasets.
description: VLDB2012
Population Synthesis of Hot Subdwarfs: A Parameter Study
Creators: name: Clausen, Drew
name: Wade, Richard A
name: Kopparapu, Ravi kumar
name: O'Shaughnessy, Richard
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Binaries that contain a hot subdwarf (sdB) star and a main sequence companion may have interacted in the past. This binary population has historically helped determine our understanding of binary stellar evolution. We have computed a grid of binary population synthesis models using different assumptions about the minimum core mass for helium ignition, the envelope binding energy, the common envelope ejection efficiency, the amount of mass and angular momentum lost during stable mass transfer, and the criteria for stable mass transfer on the red giant branch and in the Hertzsprung gap. These parameters separately and together can significantly change the entire predicted population of sdBs. Nonetheless, several different parameter sets can reproduce the observed subpopulation of sdB + white dwarf and sdB + M dwarf binaries, which has been used to constrain these parameters in previous studies. The period distribution of sdB + early F dwarf binaries offers a better test of different mass transfer scenarios for stars that fill their Roche lobes on the red giant branch.
description: 21 pages, 15 figures, accepted for publication in ApJ
N=2 Supersymmetry and U(1)-Duality
Creators: name: Broedel, Johannes
name: Carrasco, John Joseph M.
name: Ferrara, Sergio
name: Kallosh, Renata
name: Roiban, Radu
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Understanding the consequences of the E_{7(7)} duality on the UV properties of N=8 supergravity requires unravelling when and how duality-covariant actions can be constructed so as to accommodate duality-invariant counter-terms. For non-supersymmetric abelian gauge theories exhibiting U(1)-duality, with and without derivative couplings, it was shown that such a covariant construction is always possible. In this paper we describe a similar procedure for the construction of covariant non-linear deformations of U(1)-duality invariant theories in the presence of rigid N=2 supersymmetry. This is a concrete step towards studying the interplay of duality and extended supersymmetry.
description: 20 pages
Spin Squeezing under Non-Markovian Channels by Hierarchy Equation Method
Creators: name: Yin, Xiaolei
name: Ma, Jian
name: Wang, Xiaoguang
name: Nori, Franco
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study spin squeezing under non-Markovian channels, and consider an ensemble of $N$ independent spin-1/2 particles with exchange symmetry. Each spin interacts with its own bath, and the baths are independent and identical. For this kind of open system, the spin squeezing under decoherence can be investigated from the dynamics of the local expectations, and the multi-qubit dynamics can be reduced into the two-qubit one. The reduced dynamics is obtained by the hierarchy equation method, which is a exact without rotating-wave and Born-Markov approximation. The numerical results show that the spin squeezing displays multiple sudden vanishing and revival with lower bath temperature, and it can also vanish asymptotically.
description: 7 pages, 4 figures
Warm gas at 50 AU in the disk around Herbig Be star HD 100546
Creators: name: Goto, M.
name: van der Plas, G.
name: Ancker, M. van den
name: Dullemond, C. P.
name: Carmona, A.
name: Henning, Th.
name: Meeus, G.
name: Linz, H.
name: Stecklum, B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The disk atmosphere is one of the fundamental elements of theoretical models of a protoplanetary disk. However, the direct observation of the warm gas (>> 100 K) at large radius of a disk (>> 10 AU) is challenging, because the line emission from warm gas in a disk is usually dominated by the emission from an inner disk. Our goal is to detect the warm gas in the disk atmosphere well beyond 10 AU from a central star in a nearby disk system of the Herbig Be star HD 100546. We measured the excitation temperature of the vibrational transition of CO at incremental radii of the disk from the central star up to 50 AU, using an adaptive optics system combined with the high-resolution infrared spectrograph CRIRES at the VLT. The observation successfully resolved the line emission with 0".1 angular resolution, which is 10 AU at the distance of HD 100546. Population diagrams were constructed at each location of the disk, and compared with the models calculated taking into account the optical depth effect in LTE condition. The excitation temperature of CO is 400-500 K or higher at 50 AU away from the star, where the blackbody temperature in equilibrium with the stellar radiation drops as low as 90 K. This is unambiguous evidence of a warm disk atmosphere far away from the central star.
description: 7 pages, 5 figures, A&A in press
ReStore: Reusing Results of MapReduce Jobs
Creators: name: Elghandour, Iman
name: Aboulnaga, Ashraf
Publisher: name: arXiv
Year: 2012
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Analyzing large scale data has emerged as an important activity for many organizations in the past few years. This large scale data analysis is facilitated by the MapReduce programming and execution model and its implementations, most notably Hadoop. Users of MapReduce often have analysis tasks that are too complex to express as individual MapReduce jobs. Instead, they use high-level query languages such as Pig, Hive, or Jaql to express their complex tasks. The compilers of these languages translate queries into workflows of MapReduce jobs. Each job in these workflows reads its input from the distributed file system used by the MapReduce system and produces output that is stored in this distributed file system and read as input by the next job in the workflow. The current practice is to delete these intermediate results from the distributed file system at the end of executing the workflow. One way to improve the performance of workflows of MapReduce jobs is to keep these intermediate results and reuse them for future workflows submitted to the system. In this paper, we present ReStore, a system that manages the storage and reuse of such intermediate results. ReStore can reuse the output of whole MapReduce jobs that are part of a workflow, and it can also create additional reuse opportunities by materializing and storing the output of query execution operators that are executed within a MapReduce job. We have implemented ReStore as an extension to the Pig dataflow system on top of Hadoop, and we experimentally demonstrate significant speedups on queries from the PigMix benchmark.
description: VLDB2012
Effective matrix model for deconfinement in pure gauge theories
Creators: name: Dumitru, Adrian
name: Guo, Yun
name: Hidaka, Yoshimasa
name: Altes, Christiaan P. Korthals
name: Pisarski, Robert D.
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 construct matrix models for the deconfining phase transition in SU(N) gauge theories, without dynamical quarks, at a nonzero temperature T. We generalize models with zero and one free parameter to study a model with two free parameters: besides perturbative terms ~T^4, we introduce terms ~T^2 and ~T^0. The two N-dependent parameters are determined by fitting to data from numerical simulations on the lattice for the pressure, including the latent heat. Good agreement is found for the pressure in the semi-quark gluon plasma (QGP), which is the region from Tc, the critical temperature, to about ~4 Tc. Above ~1.2 Tc, the pressure is a sum of a perturbative term, ~ +T^4, and a simple non-perturbative term, essentially just a constant times ~ -Tc^2 T^2. For the pressure, the details of the matrix model only enter within a very narrow window, from Tc to ~1.2 Tc, whose width does not change significantly with N. Without further adjustment, the model also agrees well with lattice data for the 't Hooft loop. This is notable, because in contrast to the pressure, the 't Hooft loop is sensitive to the details of the matrix model over the entire semi-QGP. For the (renormalized) Polyakov loop, though, our results disagree sharply with those from the lattice. Matrix models provide a natural and generic explanation for why the deconfining phase transition in SU(N) gauge theories is of first order not just for three, but also for four or more colors. Lastly, we consider gauge theories where there is no strict order parameter for deconfinement, such as for a G(2) gauge group. To agree with lattice measurements, in the G(2) matrix model it is essential to add terms which generate complete eigenvalue repulsion in the confining phase.
description: 80 pages, 26 figures
Improving the production of punicic acid in baker’s yeast by engineering genes in acyl channeling processes and adjusting precursor supply
Creators: Wang, Juli
Xu, Yang
Holic, Roman
Yu, Xiaochen
Singer, Stacy D.
Chen, Guanqun
Publisher: name: University of Alberta Library
Year: 2021

ABSTRACT

Punicic acid (PuA) is a high-value edible conjugated fatty acid with strong bioactivities and has important potential applications in nutraceutical, pharmaceutical, feeding and oleochemical industries. Since the production of PuA is severely limited by the fact that its natural source (pomegranate seed oil) is not readily available on a large scale, there is a considerable interest in understanding the biosynthesis and accumulation of this plant-based unusual fatty acid in transgenic microorganisms to support the rational design of biotechnological approaches for PuA production via fermentation. Here we tested the effectiveness of genetic engineering and precursor supply in PuA production in the model yeast strain Saccharomyces cerevisiae. The results revealed that the combination of precursor feeding and co-expression of selected genes in acyl channeling processes created an effective ‘Push-Pull’ approach to increase PuA content, which could prove valuable in future efforts to produce PuA in industrial yeast and other microorganisms via fermentation.
Inferences on the distribution of Ly-alpha emission of z~7 and z~8 galaxies
Creators: name: Treu, T.
name: Trenti, M.
name: Stiavelli, M.
name: Auger, M. W.
name: Bradley, L. D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Spectroscopic confirmation of galaxies at z~7 and above has been extremely difficult, owing to a drop in intensity of Ly-alpha emission in comparison with samples at z~6. This crucial finding could potentially signal the ending of cosmic reionization. However it is based on small datasets, often incomplete and heterogeneous in nature. We introduce a flexible Bayesian framework, useful to interpret such evidence. Within this framework, we implement two simple phenomenological models: a smooth one, where the distribution of Ly-alpha is attenuated by a factor \es with respect to z~6; a patchy one where a fraction \ep is absorbed/non-emitted while the rest is unabsorbed. From a compilation of 39 observed z~7 galaxies we find \es=0.69+-0.12 and \ep=0.66+-0.16. The models can be used to compute fractions of emitters above any equivalent width W. For W>25Å, we find X^{25}_{z=7}=0.37+-0.11 (0.14+-0.06) for galaxies fainter (brighter) than M_{UV}=-20.25 for the patchy model, consistent with previous work, but with smaller uncertainties by virtue of our full use of the data. At z~8 we combine new deep (5-σflux limit 10^{-17}ergs^{-1}cm^{-2}) Keck-NIRSPEC observations of a bright Y-dropout identified by our BoRG Survey, with those of three objects from the literature and find that the inference is inconclusive. We compute predictions for future near-infrared spectroscopic surveys and show that it is challenging but feasible to constrain the distribution of Ly-alpha emitters at z~8 and distinguish between models.
description: ApJ in press
A 3x3 dilation counterexample
Creators: name: Choi, Man Duen
name: Davidson, Kenneth R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47A20, 47A30, 15A60

description: We define four 3x3 commuting contractions which do not dilate to commuting isometries. However they do satisfy the scalar von Neumann inequality. These matrices are all nilpotent of order 2. We also show that any three $3\times3$ commuting contractions which are scalar plus nilpotent of order 2 do dilate to commuting isometries.
description: 11 pages
title: Lebensqualität von Kindern nach CO2-Laser-Tonsillotomie
title: Quality of Life in Children after CO2-Laser-tonsillotomy
Creators: name: Tillmanns, Mareike
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: Lebensqualität
OSAS
Medizin, Gesundheit
Tonsillotomy
Quality of life
Tonsillektomie
Tonsillotomie

description: Es wird die Lebensqualität von
      Kindern nach CO2-Laser-Tonsillotomie untersucht. Hierzu wird
      die validierte deutsche Version des Glasgow Children´s
      Benefit Inventory verwendet.
description: The aim of this study is to
      measure quality of life in children after
      Co2-Laser-Tonsillotomy. The valid german version of the
      glasgow-children´s benefit inventory is used.
Holographic dark energy linearly interacting with dark matter
Creators: name: Chimento, Luis P.
name: Forte, Mónica I.
name: Richarte, Martín G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate a spatially flat Friedmann-Robertson-Walker (FRW) cosmological model with cold dark matter coupled to a modified holographic Ricci dark energy through a general interaction term linear in the energy densities of dark matter and dark energy, the total energy density and its derivative. Using the statistical method of $χ^2$-function for the Hubble data, we obtain $H_0=73.6$km/sMpc, $ω_s=-0.842$ for the asymptotic equation of state and $ z_{acc}= 0.89 $. The estimated values of $Ω_{c0}$ which fulfill the current observational bounds corresponds to a dark energy density varying in the range $0.25R < \ro_x < 0.27R$.
description: March 2012. 6 pp., 6 figures. Note: To appear in the proceedings of the CosmoSul conference, held in Rio de Janeiro, Brazil, 01-05 august of 2011
Influence of Digital Finance Platforms on Financial Inclusion in Mombasa County, Kenya
Creators: name: Dinah Mudanya
Publisher: name: Zenodo
Year: 2024

description: Financial inclusion involves increasing the number of individuals that have access to formal financial services mainly through having formal bank accounts, which contributes to poverty reduction and economic growth. An inclusive financial system is desirable and will provide opportunities for all people, particularly the poor, to access and move funds, grow capital, and reduce risk. The study sought to determine the influence of digital financing platforms on financial inclusion in Mombasa County. Theories anchoring this study include Financial Intermediation Theory, Finance growth theory and Informational asymmetric. The research population for this study was regional managers of the commercial banks in Kenya, which are licensed and regulated by the Central bank of Kenya. Data collection instruments included questionnaires. In this research the questionnaire were accompanied by a list of anticipant’s answers where the respondents selected the best answerers that described the situation. The said questionnaires were administered directly to responsible officers. The data presentation was done using the both descriptive and inferential statistical analysis. They include the mean, standard deviation, percentages and tables. Multiple regression analysis was used to establish the influence of digital finance on financial inclusion in Mombasa County, Kenya. The study results shows a strong positive correlation coefficient of 0.761 between digital financing platform and digital financial inclusion which is statistically significant (p<0.05). Based on the findings of this study, it is recommended that Board and management of commercial banks in Mombasa County, Kenya should digitalize their banks and provide proper, appropriate and timely direction in financing their commercial banks through digitalization to enable them improve on their overall financial inclusion for effective and efficient financial service delivery to customers. Management and leadership of commercial banks Mombasa County should emphasis more on the digital finance aspects that had the highest mean such as “Online brokerage has influence on financial inclusion in my organization” in order to achieve and improve on their financial inclusion. Further research studies can build on the findings of this study to broaden the existing knowledge on the influence of digital finance on financial inclusion of commercial banks in Mombasa County, Kenya.

Keywords: Digital Finance, Financial Inclusion
Karl-Heinz Knörzer, Römerzeitliche Pflanzenfunde aus Xanten
Creators: name: Behre, Karl-Ernst
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Rezension zu: Karl-Heinz Knörzer, Römerzeitliche Pflanzenfunde aus Xanten. Archaeo-Physika, Band 11. Herausgegeben vom Rheinischen Landesmuseum Bonn im Landschaftsverband Rheinland. Rheinland-Verlag GmbH Köln in Kommission bei Rudolf Habelt Verlag GmbH Bonn, Bonn 1981. 176 Seiten mit 5 Tabellen, 28 Tafeln.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 62 Nr. 1 (1984)
title: SIVmac239 Nef vermindert den Anteil von CXCR4 auf der Zelloberfläche von Tumorzellen und hemmt die Proliferation, Migration und Angiogenese
title: Nef from SIVmac239 down-modulates cell surface CXCR4 in tumor cells and inhibits proliferation, migration and angiogenesis
Creators: name: Cai, Chengzhong
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: CXCR4
SIV
Nef
Medizin, Gesundheit
Chemokine CXCL12
HeLa
Tumor
SDF-1
Affenimmundefizienzvirus
Chemokine
Gen nef
HeLa-Zelle

description: Ziel: Zu untersuchen, ob das
      lentivirale akzessorische Protein Nef CXCR4 in Tumorzellen
      herunterregulieren kann und dadurch Tumor-relevante
      Eigenschaften wie Proliferation, Migration und Angiogenese
      beeinflusst. Material und Methoden: HeLa-ACC Zellen wurden
      mit SIVmac239 Nef transfiziert und die Oberflächenexpression
      von CXCR4 mittels FACS Analyse gemessen. Echtzeit
      Zellproliferation und Migration wurden mit dem xCELLigence
      System sowie mittels eines In vitro "Scratch" Assays
      beurteilt. Ein "In vitro tube formation assay" wurde
      eingesetzt, um den Einfluss von Nef auf die Angiogenese zu
      beurteilen. Resultate: Eine Transfektion von Nef in HeLa-ACC
      Zellen sowie eine Co-Transfektion von Nef und CXCR4 in COS-7
      Zellen führte zu einer Abnahme von CXCR4 an der
      Zelloberfläche. Die Proliferation als auch die Migration von
      Nef-exprimierenden HeLa-ACC Zellen war signifikant
      vermindert. Die Angiogenese im "In vitro tube formation
      assay" erschien nach Transfektion von HUVEC Zellen mit Nef
      oder CXCR4 siRNA vermindert. Schlussfolgerung: SIV-Nef kann
      eingesetzt werden, um das Verhalten von CXCR4 exprimierenden
      Tumorzellen zu untersuchen und könnte dazu beitragen neue
      therapeutische Angriffspunkkte für die Behandlung
      CXCR4-positiver Tumoren aufzuzeigen.
description: Aim: To evaluate if the lentiviral
      accessory protein Nef can down-regulate CXCR4 in tumor cells
      and affect tumor cell proliferation, migration and
      angiogenesis. Materials and Methods: HeLa-ACC cells were
      transfected with Nef from SIVmac239 and expression levels of
      cell surface CXCR4 were monitored by FACS analysis. Real-time
      proliferation and migration of cells was measured with the
      xCELLigence system or in vitro scratch assay. In vitro tube
      formation was deployed to assess the effect of Nef on
      angiogenesis. Results: Cell surface down-modulation of CXCR4
      could be observed in HeLa-ACC cells after Nef-transfection as
      well as in COS-7 cells after co-transfection of CXCR4 and
      Nef. Proliferation as well as migration of Nef-transfected
      HeLa-ACC cells appeared significantly reduced. In vitro tube
      formation was markedly lowered after Nef-transfection or
      CXCR4 knockdown with siRNA. Conclusion: SIV-Nef could serve
      as an interesting tool to study the biologic behavior of
      CXCR4-expressing tumor cells and could be helpful in the
      discovery of new therapeutic approaches for the treatment of
      CXCR4-positive tumors.
Infrared and hard X-ray diagnostics of AGN identification from the Swift/BAT and AKARI all-sky surveys
Creators: name: Matsuta, Keiko
name: Gandhi, Poshak
name: Dotani, Tadayasu
name: Nakagawa, Takao
name: Isobe, Naoki
name: Ueda, Yoshihiro
name: Ichikawa, Kohei
name: Terashima, Yuichi
name: Oyabu, Shinki
name: Yamamura, Issei
name: Stawarz, Łukasz
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We combine data from two all-sky surveys in order to study the connection between the infrared and hard X-ray (>10keV) properties for local active galactic nuclei (AGN). The Swift/Burst Alert Telescope all-sky survey provides an unbiased, flux-limited selection of hard X-ray detected AGN. Cross-correlating the 22-month hard X-ray survey with the AKARI all-sky survey, we studied 158 AGN detected by the AKARI instruments. We find a strong correlation for most AGN between the infrared (9, 18, and 90 micron) and hard X-ray (14-195 keV) luminosities, and quantify the correlation for various subsamples of AGN. Partial correlation analysis confirms the intrinsic correlation after removing the redshift contribution. The correlation for radio galaxies has a slope and normalization identical to that for Seyfert 1s, implying similar hard X-ray/infrared emission processes in both. In contrast, Compton-thick sources show a large deficit in the hard X-ray band, because high gas column densities diminish even their hard X-ray luminosities. We propose two photometric diagnostics for source classification: one is an X-ray luminosity vs. infrared color diagram, in which type 1 radio-loud AGN are well isolated from the others in the sample. The other uses the X-ray vs. infrared color as a useful redshift-independent indicator for identifying Compton-thick AGN. Importantly, Compton-thick AGN and starburst galaxies in composite systems can also be differentiated in this plane based upon their hard X-ray fluxes and dust temperatures. This diagram may be useful as a new indicator to classify objects in new and upcoming surveys such as WISE and NuSTAR.
description: 17 pages, 5 figures, 5 tables. Accepted for publication in the Astrophysical Journal
Could the LHC two-photon signal correspond to the heavier scalar in two-Higgs-doublet models?
Creators: name: Ferreira, P. M.
name: Santos, Rui
name: Sher, Marc
name: Silva, Joao P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: LHC has reported tantalizing hints for a Higgs boson of mass 125 GeV decaying into two photons. We focus on two-Higgs-doublet Models, and study the interesting possibility that the heavier scalar (H) has been seen, with the lightest scalar (h) having thus far escaped detection. Non-observation of h at LEP severely constrains the parameter-space of two-Higgs-doublet models. We analyze cases where the decay H --> h h is kinematically allowed, and cases where it is not, in the context of type I, type II, lepton-specific, and flipped models.
description: 9 pages, pdf figures
title: Creating Plays Through Play: The Role of the Devising Director and the Application of Improvisation within Devised Theatre Practice
Creators: name: Smith, M
Publisher: name: Liverpool John Moores University
Year: 2023

description: This thesis examines five new plays in which Mark Smith took a principal role in devising as the devisor director. All the plays were performed on stage throughout the UK between 2010 and 2014. This thesis will examine the role and processes of the devising director, and the context within which ‘devising’ emerged as a particular directorial mode in modern British theatre practice. Drawing upon Smith’s practice, experiences and conceptual roots in the first instance, this thesis will add to this under-theorised area of devised theatre practice.
The Impact of Cloud Computing on Employee Creativity in Egypt: Empirical Study
Creators: name: Ramy Samir
Publisher: name: Zenodo
Year: 2024

description: This study provides a comprehensive analysis of how cloud computing can be leveraged to enhance employee creativity in the Egyptian organizations. The research offers valuable insights and practical recommendations, serving as a roadmap for businesses in Egypt to, effectively, transition to cloud computing and harness its potential to drive innovation and competitiveness. Cloud computing has rapidly become a cornerstone of modern technology, offering great potential for organizations aiming to innovate and compete globally. Despite its promise, many organizations, particularly in Egypt, have yet to adopt cloud computing or fully exploit its benefits. This study investigates the impact of various dimensions of cloud computing cloud application, cloud management, cloud infrastructure, and cloud resources on employee creativity. The choice of this topic is motivated by the fact that the Egyptian companies have to increase their competitive advantage in both technological development and innovative practices. Currently, there is a challenge in understanding how cloud computing can, effectively, be put into practice in enhancing organizational capability, as well as employee creativity. Currently, organizations face significant challenges in cloud computing technologies adoption and optimization, which presents an opportunity to gain a competitive advantage within the fast-changing environment of technology. To address this research problem, a quantitative research methodology has been applied. Data collected through structured questionnaires were distributed among employees in different organizations in Egypt. This analysis is done to determine how important each dimension of cloud computing is in exploring employee creativity, which is an important and essential for keeping and maintaining modern competitive advantages in the global market

Keywords: Cloud computing, employee creativity, cloud application, cloud management, cloud infrastructure, cloud resources.
Frames and Bases in Tensor Product of Hilbert Spaces
Creators: name: Khosravi, Amir
name: Asgari, Mohammad Sadegh
Publisher: name: arXiv
Year: 2012
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 41A38, 42C15 and 43A70

description: In this article we develop a theory for frames in tensor product of Hilbert spaces. We show that like bases if Y_1, Y_2, \cdot \cdot \cdot, Y_n are frames for H_1,H_2, \cdot \cdot \cdot, H_n, respectively, then Y_1\otimesY_2\otimes...\otimesY_n is a frame for H_\otimes1H_2\otimes \cdot \cdot \cdot \otimesH_n. Moreover we consider the canonical dual frame in tensor product space. We further obtain a relation between the dual frames in Hilbert spaces, and their tensor product.
description: 12 pages
Anmerkungen zu jüngsten archäologisch-archäometrischen Arbeiten in der wirtschaftshistorischen Forschung zur Gallia Narbonensis
Creators: name: Ehmig, Ulrike
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 90 2012(2014)
Anostraca Sars 1867
Creators: name: Rogers, D. Christopher
name: Soufi, Mahmoud
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Branchiopoda
Anostraca

description: Order Anostraca Sars, 1867
description: Published as part of Rogers, D. Christopher & Soufi, Mahmoud, 2013, A new species of Chirocephalus (Crustacea: Anostraca) from Iran, pp. 319-326 in Zootaxa 3609 (3) on page 321, DOI: 10.11646/zootaxa.3609.3.6, http://zenodo.org/record/219485
Inhalt
Creators: name: Redaktion, Die
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 92 2014(2015)