cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Generation of broad XUV continuous high harmonic spectra and isolated attosecond pulses with intense mid-infrared lasers
Creators: name: Trallero-Herrero, C.
name: Jin, C.
name: Schmidt, B. E.
name: Shiner, A. D.
name: Kieffer, J-C.
name: Corkum, P. B.
name: Villeneuve, D. M.
name: Lin, C. D.
name: Légaré, F.
name: Le, A-T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present experimental results showing the appearance of a near-continuum in the high-order harmonic generation (HHG) spectra of atomic and molecular species as the driving laser intensity of an infrared pulse increases. Detailed macroscopic simulations reveal that these near-continuum spectra are capable of producing IAPs in the far field if a proper spatial filter is applied. Further, our simulations show that the near-continuum spectra and the IAPs are a product of strong temporal and spatial reshaping (blue shift and defocusing) of the driving field. This offers a possibility of producing IAPs with a broad range of photon energy, including plateau harmonics, by mid-IR laser pulses even without carrier-envelope phase stabilization.
description: 7 pages, 5 figures, submitted to J.Phys. B (Oct 2011)
[Segl tilhørende Alexander Hansen Holst]
Creators: name: Hansen Holst, Alexander
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: I skjoldet en Fortuna med seil.
description: Blasonering av hjelmtegnet: Mglr. hjelmtegn. Over hjelmen bokstavene A H H.
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
[Segl tilhørende Anne Krefting]
Creators: name: Krefting, Anne
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: I skjoldet tre nessleblad i trepass.
description: Blasonering av hjelmtegnet: På hjelmen et nessleblad mellom to vesselhorn. Deromkring bokstavene A K.
description: Merknad: Dokumentet er undertegnet av A.K., Sal. Adam Baren, byfogd i Christiania.
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
[Segl tilhørende Magnus Stephensen]
Creators: name: Stephensen, Magnus
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: I skjoldet i blått en halv enhjørning. Rundt skjoldet bord med naglehoder.
description: Blasonering av hjelmtegnet: På hjelmen en oppvoksende enhjørning.
description: Lagmann på Island, dr. juris Magnus Steph ensens segl, datert 1808. Slekten er en gammel dansk-islandsk embedsmannsslekt. Enhjørningen er et fabelvesen som kjennes fra det gamle Kina og fra India. Som sinnbilde på renhet og kyskhet, ble enhjørningen i den kristne verden et Mariasymbol.
description: Film: F II 2721
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
[Segl tilhørende Christian L.S.V. Plessen]
Creators: name: Plessen, Christian L.S.V.
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: I skjoldet i gull en gående okse med dobbel hale.
description: Blasonering av hjelmtegnet: Mglr. hjelm. Over skjoldet en krone med tre blad og to perler.
description: Film: F II 2728a
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
D1.1 Internal and external assessment methodologies and guidelines
Creators: name: MARIA SANGIULIANO
name: MARZIA CESCON
Publisher: name: Zenodo
Year: 2021
Subjects: Gender Equality Analysis
STEM
Research Performing Organizations
Research Funding Organizations
Research & Innovation
Social Network Analysis
Gender Equality Plan
European Research Area

description: The CALIPER project aims at driving a structural change process and implementing Gender Equality Plans in 7 Research Performing and 2 Research Funding Organizations, involving the highest and middle management levels since the beginning to impact the whole institution. The project goal is to make research organizations more gender equal by increasing the number of female researchers in STEM, improving their careers prospects and integrating a gender dimension in research. The project supports the 7 European RPOs (UZG, STU, ULB, NTUA, IRB, YU, UNILE) and 2 RFOs (SRNSF, UEFIS) of the CALIPER consortium in developing and implementing Gender Equality Plans (GEPs) focusing on an innovative approach based on engaging national and regional innovation ecosystems in the partners’ countries with a quadruple helix approach: the project triggers and makes internal changes and gender equality policies sustainable by orchestrating the core inward auditing/internal assessment and GEPs design with outward actions engaging external stakeholders to activate synergies at all different junctions of the ‘education-research- transfer to market of STEM research results’ chain. The assessment phase in each RPO/RFO is a critical step aimed at identifying and analysing as well as addressing existing gender bias and inequalities at each partner organization and at the local/national innovation ecosystem. This deliverable presents the CALIPER internal and external assessment Gender Audit Methodology guidelines and includes: an overview of the overall gender assessment methodology; a set of specific guidelines on how to perform internal assessment towards the identification of gender bias at the partner RPOs/RFOs; the detailed description of the two main parts of the above methodology: A set of indicators for quantitative assessment The participatory tools and exercises for qualitative assessment; a set of specific guidelines on how to perform the analysis of external framework conditions and of the innovation ecosystem from a gender perspective; a set of guidelines on how to best communicate to internal stakeholders about the CALIPER project and the assessment
[Segl tilhørende Christian L.S.V. Plessen]
Creators: name: Plessen, Christian L.S.V.
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: I skjoldet i gull en okse med dobbel hale.
description: Blasonering av hjelmtegnet: På kronet hjelm tre påfuglfjær mellom to halve røde hjul.
description: Merknad: Elefantorden.
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
D1.2: Internal Gender Equality Assessments Results
Creators: name: Moumtzi, Vasiliki
Publisher: name: Zenodo
Year: 2021
Subjects: internal assessment
Gender Equality Plans
STEM

description: This report presents the analysis of internal conditions and the identification of gender bias and inequalities for the seven RPOs (UZG, STU, ULB, NTUA, IRB, YU, UNILE) and two RFOs (SRNSF, UEFISCI). This analysis depicts the situation based on data collected from the previous three years (2017-2018,2018-2019, 2018- 2020). The data have been collected following the Internal and External assessment methodology (D1.1). All RPOs, RFOs carried out the research activities (surveys, interviews, focus groups, desk research), involving different stakeholders (high-, and middle-management level, professors, researchers, etc.), and collected their qualitative and quantitative data. All data have been analysed at this stage. The results include the core areas of collaboration between the RPOs/RFOs, categorised under the several research activity/research areas (e.g. human resources, institutional governance, institutional communication, research, teaching, student services, transfer to market, sexual harassment, intersectionality). This collaboration will be useful for them during the next phases of GEP design, implementation and further exploitation. Also, the analysis results include the internal assessment situation of each RPO/RFO.
Estimating parameters of coalescing compact binaries with proposed advanced detector networks
Creators: name: Veitch, J.
name: Mandel, I.
name: Aylott, B.
name: Farr, B.
name: Raymond, V.
name: Rodriguez, C.
name: van der Sluys, M.
name: Kalogera, V.
name: Vecchio, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The advanced versions of the LIGO and Virgo ground-based gravitational-wave detectors are expected to operate from three sites: Hanford, Livingston, and Cascina. Recent proposals have been made to place a fourth site in Australia or India; and there is the possibility of using the Large Cryogenic Gravitational Wave Telescope in Japan to further extend the network. Using Bayesian parameter-estimation analyses of simulated gravitational-wave signals from a range of coalescing-binary locations and orientations at fixed distance or signal-to-noise ratio, we study the improvement in parameter estimation for the proposed networks. We find that a fourth detector site can break degeneracies in several parameters; in particular, the localization of the source on the sky is improved by a factor of ~ 3--4 for an Australian site, or ~ 2.5--3.5 for an Indian site, with more modest improvements in distance and binary inclination estimates. This enhanced ability to localize sources on the sky will be crucial in any search for electromagnetic counterparts to detected gravitational-wave signals.
description: arXiv admin note: updated version of (withdrawn) 1106.2547
[Segl tilhørende Jens Hejde]
Creators: name: Hejde, Jens
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: I skjoldet en plante (kvist) med tre blad mellom to planter (kvister) med fem blad.
description: Blasonering av hjelmtegnet: På hjelmen en plante (kvist) mellom to vesselhorn. På hver side herav bokstavene IH.
description: Film: F II 2027
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
The role of curvature in the slowing down acceleration scenario
Creators: name: Cardenas, Victor H.
name: Rivera, Marco
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We introduce the curvature $Ω_k$ as a new free parameter in the Bayesian analysis using SNIa, BAO and CMB data, in a model with variable equation of state parameter $w(z)$. We compare the results using both the Constitution and Union 2 data sets, and also study possible low redshift transitions in the deceleration parameter $q(z)$. We found that, incorporating $Ω_k$ in the analysis, it is possible to make all the three observational probes consistent using both SNIa data sets. Our results support dark energy evolution at small redshift, and show that the tension between small and large redshift probes is ameliorated. However, although the tension decreases, it is still not possible to find a consensus set of parameters that fit all the three data set using the Chevalier-Polarski-Linder CPL parametrization.
description: 6 pages, 8 figures
Proofs of some binomial identities using the method of last squares
Creators: name: Shattuck, Mark
name: Waldhauser, Tamás
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A19, 11B65

description: We give combinatorial proofs for some identities involving binomial sums that have no closed form.
description: 8 pages, 16 figures
Rate Of Δν Determination For Near Earth Asteroids
Creators: name: Lee, Dennis
Publisher: name: Zenodo
Year: 2014
Subjects: Near-Earth objects
Astronomy

description: The best near-Earth asteroids (NEAs) candidates for observation are those with low Δv as it is these that are best suited for unmanned, manned, scientific, and commercial expeditions. The majority of NEAs being discovered are small and dim, having a diameter of less than 100 meters and an absolute magnitude of H ≥ 22. In approximately one week, the magnitudes are so faint that follow-up photometry, spectroscopy, and astrometry are no longer possible except with the largest telescopes. This requires follow-up observations to be done within days of an asteroid's initial discovery. Given the large number of asteroids being discovered annually and the short timespan when they are bright enough for observations, only the best low Δv candidates can be selected for follow-up observations. We used archival observation data of 200 representative asteroids from the Minor Planet Center (MPC) and the Find Orb orbit determination software from Project Pluto to determine the speed at which orbital parameters converge on a Δv solution. Based on the data, after three days of observations, 95% of NEAs converged to within 10% precision.
description: {"references": ["Elvis, M., McDowell J., Hoffman, J. A., Binzel, R. P. Ultra-low delta-v objects and the human exploration of asteroids. In. Planetary and Space Science, 59 (2011), pp.1408-1412", "Galache, J.L., Beeson, C.L., McLeod, K.K., Elvis, M., 2014. The Need for Speed in Near-Earth Asteroid Characterization.", "Hergenrother, C.W., Barucci, M.A., Barnouin, O., Bierhaus, B., Binzel, R.P., Bottke, W.F., Chesley, S., Clark, B.C., Clark, B.E., Cloutis, E., dAubigny, C.D., Delbo, M., Emery, J., Gaskell, B., Howell, E., Keller, L., Kelley, M., Marshall, J., Michel, P., Nolan, M. Rizk, B., Scheeres, D., Takir, D., Vokrouhlick, D.D., Beshore, E., Lauretta, D.S., 2014. The Design Reference Asteroid for the OSIRIS-REx Mission Target (101955) Bennu. arXiv:1409.4704", "Masateru Ishiguro et al. 2014. Optical Properties of (162173) 1999 JU3: In Preparation for the JAXA Hayabusa 2 Sample Return Mission. ApJ 792 74. doi:10.1088/0004-637X/792/1/74", "Shoemaker, E. M., Helin, E. F., Wolfe, 1978. NASA CP-2053 pp.245-256"]}
Integrability properties of Hurwitz partition functions. II. Multiplication of cut-and-join operators and WDVV equations
Creators: name: Mironov, A.
name: Morozov, A.
name: Natanzon, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Correlators in topological theories are given by the values of a linear form on the products of operators from a commutative associative algebra (CAA). As a corollary, partition functions of topological theory always satisfy the generalized WDVV equations. We consider the Hurwitz partition functions, associated in this way with the CAA of cut-and-join operators. The ordinary Hurwitz numbers for a given number of sheets in the covering provide trivial (sums of exponentials) solutions to the WDVV equations, with finite number of time-variables. The generalized Hurwitz numbers from arXiv:0904.4227 provide a non-trivial solution with infinite number of times. The simplest solution of this type is associated with a subring, generated by the dilatation operators tr X(d/dX).
description: 24 pages
Wideband digital phase comparator for high current shunts
Creators: name: Pogliano, Umberto
name: Trinchera, Bruno
name: Serazio, Danilo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A wideband phase comparator for precise measurements of phase difference of high current shunts has been developed at INRIM. The two-input digital phase detector is realized with a precision wideband digitizer connected through a pair of symmetric active guarded transformers to the outputs of the shunts under comparison. Data are first acquired asynchronously, and then transferred from on-board memory to host memory. Because of the large amount of data collected the filtering process and the analysis algorithms are performed outside the acquisition routine. Most of the systematic errors can be compensated by a proper inversion procedure. The system is suitable for comparing shunts in a wide range of currents, from several hundred of milliampere up to 100 A, and frequencies ranging between 500 Hz and 100 kHz. Expanded uncertainty (k=2) less than 0.05 mrad, for frequency up to 100 kHz, is obtained in the measurement of the phase difference of a group of 10 A shunts, provided by some European NMIs, using a digitizer with sampling frequency up to 1 MHz. An enhanced version of the phase comparator employs a new digital phase detector with higher sampling frequency and vertical resolution. This permits to decrease the contribution to the uncertainty budget of the phase detector of a factor two from 20 kHz to 100 kHz. Theories and experiments show that the phase difference between two high precision wideband digitizers, coupled as phase detector, depends on multiple factors derived from both analog and digital imprint of each sampling system.
description: 20 pages, 9 figures
New approach for normalization and photon-number distributions of photon-added (-subtracted) squeezed thermal states
Creators: name: Hu, Li-Yun
name: Zhang, Zhi-Ming
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using the thermal field dynamics theory to convert the thermal state to a "pure" state in doubled Fock space, it is found that the average value of e^{fa^{†}a} under squeezed thermal state (STS) is just the generating function of Legendre polynomials, a remarkable result. Based on this point, the normalization and photon-number distributions of m-photon added (or subtracted) STS are conviently obtained as the Legendre polynomials. This new concise method can be expanded to the entangled case.
description: 5 pages, no figure
SU(5) Heterotic Standard Model Bundles
Creators: name: Andreas, Bjorn
name: Hoffmann, Norbert
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We construct a class of stable SU(5) bundles on an elliptically fibered Calabi-Yau threefold with two sections, a variant of the ordinary Weierstrass fibration, which admits a free involution. The bundles are invariant under the involution, solve the topological constraint imposed by the heterotic anomaly equation and give three generations of Standard Model fermions after symmetry breaking by Wilson lines of the intermediate SU(5) GUT-group to the Standard Model gauge group. Among the solutions we find some which can be perturbed to solutions of the Strominger system. Thus these solutions provide a step toward the construction of phenomenologically realistic heterotic flux compactifications via non-Kahler deformations of Calabi-Yau geometries with bundles. This particular class of solutions involves a rank two hidden sector bundle and does not require background fivebranes for anomaly cancellation.
description: 17 pages
[Segl tilhørende Nils Werenskiold]
Creators: name: Werenskiold, Nils
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: Skjoldet kvadrert av en strøm (et bølget kors). I 1. og 4. felt et tårn, i 2. og 3. felt to sparrer over hverandre.
description: Blasonering av hjelmtegnet: På hjelmen et tårn.
description: Nils Werenskiolds segl, datert 1717-1729. Adelspatenter 1697 for Niels Wernerson til Hafslund i Norge og 1717 for hans brødre Jens og Christian Wernerson med navnet Werenskiold. Slekten lever stadig både i Danmark og Norge.
description: Film: F II 2768
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
[Segl tilhørende Peder Friborg]
Creators: name: Friborg, Peder
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: I skjoldet en ubestemmelig figur (borg?).
description: Blasonering av hjelmtegnet: På hjelmen en Fortuna med seil, deromkring bokstavene P F B.
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
Local null controllability of the N-dimensional Navier-Stokes system with N-1 scalar controls in an arbitrary control domain
Creators: name: Carreño, Nicolás
name: Guerrero, Sergio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this paper we deal with the local null controllability of the N-dimensional Navier-Stokes system with internal controls having one vanishing component. The novelty of this work is that no condition is imposed on the control domain.
Growing transverse oscillations of a multistranded loop observed by SDO/AIA
Creators: name: Wang, Tongjiang
name: Ofman, Leon
name: Davila, Joseph M.
name: Su, Yang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The first evidence of transverse oscillations of a multistranded loop with growing amplitudes and internal coupling observed by the Atomspheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) is presented. The loop oscillation event occurred on 2011 March 8, triggered by a CME. The multiwavelength analysis reveals the presence of multithermal strands in the oscillating loop, whose dynamic behaviors are temperature-dependent, showing differences in their oscillation amplitudes, phases and emission evolution. The physical parameters of growing oscillations of two strands in 171 A are measured and the 3-D loop geometry is determined using STEREO-A/EUVI data. These strands have very similar frequencies, and between two 193 A strands a quarter-period phase delay sets up. These features suggest the coupling between kink oscillations of neighboring strands and the interpretation by the collective kink mode as predicted by some models. However, the temperature dependence of the multistarnded loop oscillations was not studied previously and needs further investigation. The transverse loop oscillations are associated with intensity and loop width variations. We suggest that the amplitude-growing kink oscillations may be a result of continuous non-periodic driving by magnetic deformation of the CME, which deposits energy into the loop system at a rate faster than its loss.
description: 6 pages, 4 color figures, 1 table, ApJ Letter, accepted
[Segl tilhørende Andreas Jacobsen]
Creators: name: Jacobsen, Andreas
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: Ikke skjold. I seglet en kvinne holdende et anker i høyre hånd og en fugl i venstre. Deromkring bokstavene A J S.
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
Spectral modeling of circular massive binary systems: Towards an understanding of the Struve--Sahade effect?
Creators: name: Palate, Matthieu
name: Rauw, Gregor
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context: Some secondary effects are known to introduce variations in spectra of massive binaries. These phenomena (such as the Struve--Sahade effect, difficulties to determine properly the spectral type,...) have been reported and documented in the literature. Aims: We simulate the spectra of circular massive binaries at different phases of the orbital cycle and accounting for the gravitational influence of the companion star on the shape and physical properties of the stellar surface. Methods: We use the Roche potential to compute the stellar surface, von Zeipel theorem and reflection effects to compute the surface temperature. We then interpolate in a grid of NLTE plan-parallel atmosphere model spectra to obtain the local spectrum at each surface point. We finally sum all the contributions (accounting for the Doppler shift, limb-darkening, ...) to obtain the total spectrum. The computation is done for different orbital phases and for different sets of physical and orbital parameters. Results: Our first models reproduce the Struve--Sahade effect for several lines. Another effect, surface temperature distribution is visible but the distribution predicted by our current model is not yet consistent with observations. Conclusions: In some cases, the Struve--Sahade effect as well as more complex line intensity variations could be linked to blends of intrinsically asymmetric line profiles that are not appropriatly treated by the deblending routine. Systematic variations of lines for (nearly) contact systems are also predicted by the model.
description: Accepted for publication in Astronomy & Astrophysics
[Segl tilhørende Christian Arent Rasch]
Creators: name: Rasch, Christian Arent
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: Skjoldet delt i blått og rødt av en sølv skråbjelke. I 1. felt tre roser (2.1), i 2. felt en løpende hind.
description: Blasonering av hjelmtegnet: På hjelmen en harniskkledt arm holdende en sabel.
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
[Segl tilhørende Danmark. Søetatskommissariatet]
Creators: name: Danmark. Søetatskommissariatet
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: Ikke skjold. I seglet en fregatt. Derunder devisen VENIANT AD CIA SICAVENTI. Omskrift: KONGL. MAY. TIL DAN. OG NOR. SØEESTATSCOMISARIAT.
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
Elucidation of binding mechanism of stigmasterol with human serum albumin: a biophysical and molecular dynamics simulation approach
Creators: name: Yeggoni, Daniel Pushparaju
name: Dubey, Shreya
name: Mohammad, Yusuf Zamal
name: Rachamallu, Aparna
name: Subramanyam, Rajagopal
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Computational Biology

description: In the present study, we have analyzed the interaction of a phytochemical, stigmasterol (Stig), with human serum albumin (HSA) under physiological conditions using fluorescence quenching, circular dichroism and molecular modeling methods. Cytotoxic studies with Stig in mouse macrophages (RAW 246.7) and HeLa cell lines showed anti-inflammatory and anti-cancer properties. Further, the intrinsic fluorescence of HSA was quenched by Stig, which was considered a static quenching mechanism. The site-specific marker experiments revealed that Stig binds to the IIIA subdomain of HSA with a binding constant of KStig=1.8 ± 0.03 × 105 M−1 and free energy of −7.26 ± 0.031 Kcal/mol. The secondary structure of HSA was partially unfolded after binding of Stig, which indicates an alteration in the microenvironment of the protein binding site. Molecular docking experiments found that Stig binds strongly with HSA at the IIIA domain of the hydrophobic pocket with one hydrogen bond. The rigidity of the protein-Stig complex and free energies were analyzed by molecular dynamic simulation (MDS) for 100 ns, where the HSA-Stig was stabilized after 40 ns. MDS studies revealed that HSA does not significantly change the secondary structure when it binds with Stig, which is in agreement with the circular dichroism data. Overall, the results obtained gave qualitative and quantitative insight into the binding interaction between HSA and Stig, which is essential in understanding the latter as a therapeutic molecule. Communicated by Ramaswamy H. Sarma
Absence of topological insulator phases in non-Hermitian PT-symmetric Hamiltonians
Creators: name: Hu, Yi Chen
name: Hughes, Taylor L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work we consider a generalization of the symmetry classification of topological insulators to non-Hermitian Hamiltonians which satisfy a combined $PT$-symmetry (parity and time-reversal). We show via examples, and explicit bulk and boundary state proofs that the typical paradigm of forming topological insulator states from Dirac Hamiltonians is not compatible with the construction of non-Hermitian $PT$-symmetric Hamiltonians. The topological insulator states are $PT$-breaking phases and have energy spectra which are complex (not real) and thus such non-Hermitian Hamiltonians are not consistent quantum theories.
description: 5 pages, 1 figure
Insights into the mutations leading to capreomycin resistance in S-adenosyl-L-methionine binding motif in TlyA from Mycobacterium tuberculosis
Creators: name: Ali, Waseem
name: Jamal, Salma
name: Grover, Abhinav
name: Grover, Sonam
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Neuroscience
subject: Biotechnology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology
subject: Computational Biology

description: Capreomycin is a second line antibiotic used for the treatment of drug resistant Tuberculosis (TB), primary reason of death from a solo infectious organism, Mycobacterium tuberculosis (M.tb). Capreomycin targets the ribosome of bacteria and is known to bind at the interface where the large and small ribosomal subunits interact in M.tb using an S-Adenosyl Methionine (SAM) dependent methyltransferase, TlyA (Rv1794). Besides the methyltransferase activity, TlyA has also been found to show substantial haemolytic activity. The dual activity of TlyA highlights its crucial role in pathogenesis and virulence of M.tb. In the present study, docking and molecular dynamics (MD) simulations were carried out to explore the impact of mutations in a conserved SAM binding motif, 90GASTG94, on the affinity of TlyA enzyme for SAM. Two already reported mutations, A91E and S92L, and the remaining wild type residues, Gly90, Thr93, Gly94 mutated to alanine were taken into consideration resulting in a total of six systems, wild type + SAM, G90A + SAM, A91E + SAM, S92L + SAM, T93A + SAM and G94A + SAM that were subjected to 100 ns MD simulations. Docking scores and MD simulations analyses revealed that in contrast to wild type, mutants reduced the affinity of SAM for TlyA with most prominent effect observed in case of alanine mutants. Mutations also led to the loss of hydrogen bond and hydrophobic interactions and large-scale movement of atoms evident from the principal component analyses indicating their destabilizing impact on TlyA. The present study gives insights into influence of mutations on binding of SAM to TlyA in M.tb and promoting capreomycin resistance. Communicated by Ramaswamy H. Sarma
[Segl tilhørende Melchior Falch]
Creators: name: Falch, Melchior
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: I skjoldet bokstavene M F.
description: Blasonering av hjelmtegnet: På hjelmen en fugl (falk?).
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
Some interesting features of new massive gravity
Creators: name: Accioly, Antonio
name: Helayël-Neto, José
name: Scatena, Eslley
name: Morais, Jefferson
name: Turcati, Rodrigo
name: Pereira-Dias, Bruno
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A proof that new massive gravity - the massive 3D gravity model proposed by Bergshoeff, Hohm and Townsend (BHT) - is the only unitary system at the tree level that can be constructed by augmenting planar gravity through the curvature-squared terms, is presented. Two interesting gravitational properties of the BHT model, namely, time dilation and time delay, which have no counterpart in the usual Einstein 3D gravity, are analyzed as well.
description: Submitted to Classical and Quantum Gravity
I/O efficient bisimulation partitioning on very large directed acyclic graphs
Creators: name: Hellings, Jelle
name: Fletcher, George H. L.
name: Haverkort, Herman
Publisher: name: arXiv
Year: 2011
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: In this paper we introduce the first efficient external-memory algorithm to compute the bisimilarity equivalence classes of a directed acyclic graph (DAG). DAGs are commonly used to model data in a wide variety of practical applications, ranging from XML documents and data provenance models, to web taxonomies and scientific workflows. In the study of efficient reasoning over massive graphs, the notion of node bisimilarity plays a central role. For example, grouping together bisimilar nodes in an XML data set is the first step in many sophisticated approaches to building indexing data structures for efficient XPath query evaluation. To date, however, only internal-memory bisimulation algorithms have been investigated. As the size of real-world DAG data sets often exceeds available main memory, storage in external memory becomes necessary. Hence, there is a practical need for an efficient approach to computing bisimulation in external memory. Our general algorithm has a worst-case IO-complexity of O(Sort(|N| + |E|)), where |N| and |E| are the numbers of nodes and edges, resp., in the data graph and Sort(n) is the number of accesses to external memory needed to sort an input of size n. We also study specializations of this algorithm to common variations of bisimulation for tree-structured XML data sets. We empirically verify efficient performance of the algorithms on graphs and XML documents having billions of nodes and edges, and find that the algorithms can process such graphs efficiently even when very limited internal memory is available. The proposed algorithms are simple enough for practical implementation and use, and open the door for further study of external-memory bisimulation algorithms. To this end, the full open-source C++ implementation has been made freely available.
Flows at the Edge of an Active Region: Observation and Interpretation
Creators: name: Boutry, Céline
name: Buchlin, Eric
name: Vial, Jean-Claude
name: Régnier, Stéphane
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Upflows observed at the edges of active regions have been proposed as the source of the slow solar wind. In the particular case of Active Region (AR) 10942, where such an upflow has been already observed, we want to evaluate the part of this upflow that actually remains confined in the magnetic loops that connect AR10942 to AR10943. Both active regions were visible simultaneously on the solar disk and were observed by STEREO/SECCHI EUVI. Using Hinode/EIS spectra, we determine the Doppler shifts and densities in AR10943 and AR10942, in order to evaluate the mass flows. We also perform magnetic field extrapolations to assess the connectivity between AR10942 and AR10943. AR10943 displays a persistent downflow in Fe XII. Magnetic extrapolations including both ARs show that this downflow can be connected to the upflow in AR10942. We estimate that the mass flow received by AR10943 areas connected to AR10942 represents about 18% of the mass flow from AR10942. We conclude that the upflows observed on the edge of active regions represent either large-scale loops with mass flowing along them (accounting for about one-fifth of the total mass flow in this example) or open magnetic field structures where the slow solar wind originates.
description: 20 pages, 9 figures, accepted for publication in Astrophys. J
[Segl tilhørende Nicolai Frederik Krohg]
Creators: name: Krohg, Nicolai Frederik
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: Skjoldet kløvd i sølv og blått. I 1. Felt en fremkommende hest med bissel og foran en skråstilt lansespiss, sverdskjefte, flagg, kanonrør og liggende tromme, i 2. felt et tre under.
description: Blasonering av hjelmtegnet: På hjelmen en due med grønn oljekvist i nebbet.
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
[Segl tilhørende Jan Peter Bromander]
Creators: name: Bromander, Jan Peter
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: I skjoldet i blått en sinistervendt stående løve på en bro.
description: Blasonering av hjelmtegnet: På hjelmen en oppvoksende mann holdende i høyre hand en nedvendt pil.
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
[Segl tilhørende Edward Mejer Tyrholm]
Creators: name: Tyrholm, Edward Mejer
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: I skjoldet en gående okse.
description: Blasonering av hjelmtegnet: På hjelmen en fugl. Derover bokstavene E M T.
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
[Postsegl tilhørende Brevik]
Creators: name: Postsegl. Brevik
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: Ikke skjold. I seglet Christian VIFs kronete monogram. Derunder et posthorn. Navnet VIG på hver side om monogrammet.
description: Merknad: Defekt segl.
description: Film: F II 2328
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
[Segl tilhørende Hans Speilberg]
Creators: name: Speilberg, Hans
Publisher: name: Unknown
Year: 0

description: Monogramsegl: Bokstavene H S B. Devise: FERENDUM ET SPERENDUM.
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
Impurity effects on Fabry-Perot physics of ballistic carbon nanotubes
Creators: name: Romeo, F.
name: Citro, R.
name: Di Bartolomeo, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a theoretical model accounting for the anomalous Fabry-Perot pattern observed in the ballistic conductance of a single-wall carbon nanotubes. Using the scattering field theory, it is shown that the presence of a limited number of impurities along the nanotube can be identified by a measurement of the conductance and their position determined. Impurities can be made active or silent depending on the interaction with the substrate via the back-gate. The conceptual steps for designing a bio-molecules detector are briefly discussed.
description: 4 pages, 4 figures
[Segl tilhørende P. Gyllenstrøm]
Creators: name: Gyllenstrøm, P.
Publisher: name: Unknown
Year: 0

description: Blasonering av skjoldet: I skjoldet en æskulapstav med to slanger.
description: Blasonering av hjelmtegnet: På hjelmen en æskulapstav med to slanger mellom to vinger. På hver side av hjelmtegnet bokstavene P G.
description: Beskrivelse av segl og andre opplysninger er hentet fra boka "Segl i Universitetsbiblioteket i Trondheim" av Harald Nissen og Monica Aase utgitt 1990.
Heating of braided coronal loops
Creators: name: Wilmot-Smith, A. L.
name: Pontin, D. I.
name: Yeates, A. R.
name: Hornig, G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the relaxation of braided magnetic loops in order to find out how the type of braiding via footpoint motions affects resultant heating of the loop. Two magnetic loops, braided in different ways, are used as initial conditions in resistive MHD simulations and their subsequent evolution is studied. The fields both undergo a resistive relaxation in which current sheets form and fragment and the system evolves towards a state of lower energy. In one case this relaxation is very efficient with current sheets filling the volume and homogeneous heating of the loop occurring. In the other case fewer current sheets develop, less magnetic energy is released in the process and a patchy heating of the loop results. The two cases, although very similar in their setup, can be distinguished by the mixing properties of the photospheric driver. The mixing can be measured by the topological entropy of the plasma flow, an observable quantity.
description: 16 pages, 13 Figures. To be published in Astronomy and Astrophysics
Families of twisted tensor product codes
Creators: name: Giuzzi, Luca
name: Pepe, Valentina
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 94B05, 94B27, 15A69, 51E20

description: Using geometric properties of the variety $\cV_{r,t}$, the image under the Grassmannian map of a Desarguesian $(t-1)$-spread of $\PG(rt-1,q)$, we introduce error correcting codes related to the twisted tensor product construction, producing several families of constacyclic codes. We exactly determine the parameters of these codes and characterise the words of minimum weight.
description: Keywords: Segre Product, Veronesean, Grassmannian, Desarguesian spread, Subgeometry, Twisted Product, Constacyclic error correcting code, Minimum weight
LINGUOECOLOGY AND STATE SERVICE
Creators: name: Shoshin, Serguei
Publisher: name: figshare
Year: 2021
Subjects: subject: 200401 Applied Linguistics and Educational Linguistics
subject: FOS: Languages and literature
subject: 200304 Central and Eastern European Languages (incl. Russian)
subject: 200509 Central and Eastern European Literature (incl. Russian)
subject: 200101 Communication Studies
subject: FOS: Media and communications
subject: 200102 Communication Technology and Digital Media Studies
subject: 200199 Communication and Media Studies not elsewhere classified
subject: 200322 Comparative Language Studies
subject: 200524 Comparative Literature Studies
subject: 200203 Consumption and Everyday Life
subject: FOS: Other humanities
subject: 200299 Cultural Studies not elsewhere classified
subject: 200204 Cultural Theory
subject: 200205 Culture, Gender, Sexuality
subject: 200403 Discourse and Pragmatics
subject: 200206 Globalisation and Culture
subject: 200303 English as a Second Language
subject: 200302 English Language
subject: 200399 Language Studies not elsewhere classified
subject: 200405 Language in Culture and Society (Sociolinguistics)
subject: 200406 Language in Time and Space (incl. Historical Linguistics, Dialectology)
subject: 209999 Language, Communication and Culture not elsewhere classified
subject: 200407 Lexicography
subject: 200408 Linguistic Structures (incl. Grammar, Phonology, Lexicon, Semantics)
subject: 200499 Linguistics not elsewhere classified
subject: 200599 Literary Studies not elsewhere classified
subject: 200525 Literary Theory
subject: 200209 Multicultural, Intercultural and Cross-cultural Studies
subject: 200105 Organisational, Interpersonal and Intercultural Communication
subject: 200212 Screen and Media Culture
subject: 200526 Stylistics and Textual Analysis

description: Domestic history is known for examples of abuse of obscene vocabulary in public administration activities. Lexical constructions containing such components periodically turn out to be used today in the speech of public servants. The application of the provisions of linguoecology may introduce some certainty into the procedure for assessing the degree of admissibility of such language practice. In such a situation, it is proposed to clearly distinguish cases of abuse committed by an official from the usual practice of using obscene language. Here, the introduction of certainty into the understanding of the meaning (content) of the category (concept) of “public place” is also relevant.
Tafeln
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2020

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 12 Nr. 11 (1959): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Josua Bruyn, Van Eyck Problemen
Creators: name: Pächt, Otto
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2020

description: Rezension zu: Josua Bruyn, Van Eyck Problemen (De Levensbron - Het Werk van een Leerling van Jan van Eyck). Utrecht Kunsthistorisch Institut 1957. 174 S., 60 Abb.
description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 12 Nr. 9 (1959): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Submillimeter Polarization of Galactic Clouds: A Comparison of 350 micron and 850 micron Data
Creators: name: Vaillancourt, John E.
name: Matthews, Brenda C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Hertz and SCUBA polarimeters, working at 350 micron and 850 micron respectively, have measured the polarized emission in scores of Galactic clouds. Of the clouds in each dataset, 17 were mapped by both instruments with good polarization signal-to-noise ratios. We present maps of each of these 17 clouds comparing the dual-wavelength polarization amplitudes and position angles at the same spatial locations. In total number of clouds compared, this is a four-fold increase over previous work. Across the entire data-set real position angle differences are seen between wavelengths. While the distribution of ϕ(850)-ϕ(350) is centered near zero (near-equal angles), 64% of data points with high polarization signal-to-noise (P >= 3σ_p) have |ϕ(850)-ϕ(350)| > 10 degrees. Of those data with small changes in position angle (<= 10 degrees) the median ratio of the polarization amplitudes is P(850)/P(350) = 1.7 +/- 0.6. This value is consistent with previous work performed on smaller samples and models which require mixtures of different grain properties and polarization efficiencies. Along with the polarization data we have also compiled the intensity data at both wavelengths; we find a trend of decreasing polarization with increasing 850-to-350 micron intensity ratio. All the polarization and intensity data presented here (1699 points in total) are available in electronic format.
description: 50 pages, 26 figures, one electronic data file. Submitted to ApJS