cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Flavor S_4 times Z_2 symmetry and neutrino mixing
Creators: name: Zhang, He
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a model of the lepton masses and flavor mixing based on the discrete group $S_4 \times Z_2$. In this model, all the charged leptons and neutrinos are assigned to the $3_α$ representation of $S_4$ in the Yamanouchi bases. The charged lepton and neutrino masses are mainly determined by the vacuum expectation value structures of the Higgs fields. A nearly tri-bimaximal lepton flavor mixing pattern, which is in agreement with the current experimental results, can be accommodated in our model. The neutrino mass spectrum takes the nearly degenerate pattern, and thus can be well tested in the future precise experiments.
description: 16 Pages, 1 Figure, 2 Tables, revised version was published in Phys. Lett. B
title: ADCO, Cartulaire de l'office de la Porte de l'abbaye de Cîteaux, Registrum possessionum porte Cistercii (début XVe siècle), Cart. 172 (11 H 69), 115 folios, f. 0183
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP

description: Cartulaire de l'office de la Porte de l'abbaye de Cîteaux, Registrum possessionum porte Cistercii (début XVe siècle), Archives départementales de la Côte-d'Or, Cart. 172 (11 H 69), 115 folios, f. 0183, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de l'office de la Porte de l'abbaye de Cîteaux, Registrum possessionum porte Cistercii (début XVe siècle), Archives départementales de la Côte-d'Or, Cart. 172 (11 H 69), 115 folios, f. 0183, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Optical properties of an ensemble of G-centers in silicon
Creators: name: Beaufils, C.
name: Redjem, W.
name: Rousseau, E.
name: Jacques, V.
name: Kuznetsov, A. Yu.
name: Raynaud, C.
name: Voisin, C.
name: Benali, A.
name: Herzig, T.
name: Pezzagna, S.
name: Meijer, J.
name: Abbarchi, M.
name: Cassabois, G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We addressed the carrier dynamics in so-called G-centers in silicon (consisting of substitutional-interstitial carbon pairs interacting with interstitial silicons) obtained via ion implantation into a silicon-on-insulator wafer. For this point defect in silicon emitting in the telecommunication wavelength range, we unravel the recombination dynamics by time-resolved photoluminescence spectroscopy. More specifically, we performed detailed photoluminescence experiments as a function of excitation energy, incident power, irradiation fluence and temperature in order to study the impact of radiative and non-radiative recombination channels on the spectrum, yield and lifetime of G-centers. The sharp line emitting at 969 meV ($\sim$1280 nm) and the broad asymmetric sideband developing at lower energy share the same recombination dynamics as shown by time-resolved experiments performed selectively on each spectral component. This feature accounts for the common origin of the two emission bands which are unambiguously attributed to the zero-phonon line and to the corresponding phonon sideband. In the framework of the Huang-Rhys theory with non-perturbative calculations, we reach an estimation of 1.6$\pm$0.1 $\angstrom$ for the spatial extension of the electronic wave function in the G-center. The radiative recombination time measured at low temperature lies in the 6 ns-range. The estimation of both radiative and non-radiative recombination rates as a function of temperature further demonstrate a constant radiative lifetime. Finally, although G-centers are shallow levels in silicon, we find a value of the Debye-Waller factor comparable to deep levels in wide-bandgap materials. Our results point out the potential of G-centers as a solid-state light source to be integrated into opto-electronic devices within a common silicon platform.
Testing the Frozen-Flow Approximation
Creators: name: Melott, Adrian L.
name: Lucchin, Francesco
name: Matarrese, Sabino
name: Moscardini, Lauro
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the accuracy of the frozen--flow approximation (FFA), recently proposed by Matarrese \etal (1992), for following the nonlinear evolution of cosmological density fluctuations under gravitational instability. We compare a number of statistics between results of the FFA and nbody simulations, including those used by Melott, Pellman \& Shandarin (1993) to test the Zel'dovich approximation. The FFA performs reasonably well in a statistical sense, e.g. in reproducing the counts--in--cell distribution, at small scales, but it does poorly in the crosscorrelation with nbody which means it is generally not moving mass to the right place, especially in models with high small--scale power.
description: 13 pages in TEX (plus 8 Figures but only figs 5,6,7,8 are available--and here enclosed as postscript files, due to size problems), DAPD-93-257
Anomalous single production of the fourth generation charged leptons at future ep colliders
Creators: name: Ciftci, A. K.
name: Ciftci, R.
name: Yildiz, H. Duran
name: Sultansoy, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Possible single productions of the fourth standard model family charged leptons via anomalous interactions at the future ep colliders are studied. Signatures of such anomalous processes and backgrounds are discussed in detail.
description: 7 pages, 5 figures
Our Galactic Center: A laboratory for the feeding of AGNs?
Creators: name: von Linden, Susanne
name: Biermann, Peter L.
name: Duschl, Wolfgang J.
name: Lesch, Harald
name: Schmutzler, Thomas
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We demonstrate that our Galactic Center, despite little evidence for the presence of a currently active nucleus, provides insight into the feeding of AGN: The observed velocity field of molecular clouds can be interpreted as tracing out the spiralling inwards of gas in a large accretion flow towards the Galactic Center (Linden et al. 1993, Biermann et al. 1993) in the radial distance range from a few parsec to a few hundred pc. The required effective viscosity corresponds well to the observed turbulent velocities and characteristic length scales. The implied mass influx provides indeed all the material needed to maintain the presently observed star formation rate at distances closer than about $100$ pc. We argue that the energy input from supernova explosions due to the high rate of star formation can feed the turbulence of the interstellar medium. This then keeps the effective viscosity high as required to feed the star formation. We suggest that this process leads to limit cycles in star formation, and as a consequence also to limit cycles in the feeding of any activity at the very center.
description: 1+15 pages, no figures, plain TeX
Upper Bound on the Mass of the Type III Seesaw Triplet in an SU(5) Model
Creators: name: Dorsner, Ilja
name: Perez, Pavel Fileviez
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate correlation between gauge coupling unification, fermion mass spectrum, proton decay, perturbativity and ultraviolet cutoff within an SU(5) grand unified theory with minimal scalar content and an extra adjoint representation of fermions. We find strong correlation between the upper bound on the mass of both the bosonic and fermionic SU(2) triplets and the cutoff. The upper bound on the mass of fermionic triplet responsible for Type III seesaw mechanism is 10^{2.1} GeV for the Planck scale cutoff. In that case both the idea of grand unification and nature of seesaw mechanism could be tested at future collider experiments through the production of those particles. Moreover, the prediction for the proton decay lifetime is at most an order of magnitude away from the present experimental limits. If the cutoff is lowered these predictions change significantly. In the most general scenario, if one does (not) neglect a freedom in the quark and lepton mixing angles, the upper bound on the fermionic triplet mass is at 10^{5.4} GeV (10^{10} GeV). Since the predictions of the model critically depend on the presence of the higher-dimensional operators and corresponding cutoff we address the issue of their possible origin and also propose alternative scenarios that implement the hybrid seesaw framework of the original proposal.
description: 13 pages, 2 figures, minor changes introduced to match the JHEP version
Home Guard Proficiency Certificate
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Issued 27 June 1944 by the 40th City of London (G.L.C. Co.) Bn., Home Guard, L Regiment. There are many references in my father's diaries to ARP duty, Home Guard duty, and machine gun training (practice in assembly, firing, stripping, and theory) from 1942-1944. His diaries record days off for works duty (he worked at Southall Gas Works) and ARP weekends, after which he received a 1s 6d subsistence allowance from Bisley. They also record a joint exercise with the 10th Middlesex in 1944, describing "the usual muddle" when "12 hours Home Guard" started in February 1942, anti-gas drill, and a Home Guard exercise called BLAST on 30 January 1944. After that, it mainly seems to be overnight telephone duty from 8 pm to 6 am, then back to work that morning. There doesn't seem to be the same demarcation between the Home Guard and the ARP as there was in Dad's Army. My father seems to have been involved in both.
Synthesis, characterization, and biological evaluations of some steryl 2-methoxybenzoates as anticancer agents
Creators: name: Yanmin Huang
name: Haiyan Wen
name: Jiahua Zheng
name: Chunfang Gan
name: Liping Pang
name: Chunling Pang
name: Xiaolan Liu
name: Junyan Zhan
name: Jianguo Cui
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Using cholesterol, stigmasterol and sitosterol as starting materials, a series of 7-subsitituted-ster-3-yl 2-methoxybenzoate analogs were prepared through reacting with 2-methoxybenzoyl chloride and introducing some function groups, such as carbonyl, hydroxyl and various thiosemicarbazones, at 7-position of steroidal nucleus. The structures of these new compounds were characterized by IR, NMR and HRMS. Their antiproliferative activities were evaluated by using several types of cancer cells. Interestingly, the compounds displayed potent antiproliferative activity against CNE-2 (nasopharyngeal carcinoma cell lines), BEL-7402 (human liver cancer cell lines) and HepG2 (human liver cancer cell lines), suggesting that they have potential to be drug candidates for cancer treatment.
Lindenbergia indica Vatke 1875
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Orobanchaceae
Lindenbergia
Lindenbergia indica

description: Dodartia indica Linnaeus, Species Plantarum 2: 633. 1753.
"Habitat in India." RCN: 4598.
 Lectotype (Prijanto in Reinwardtia 7: 550. 1969): Herb. Linn. No. 800.3 (LINN).
 Current name:  Lindenbergia indica  (L.) Vatke (Scrophulariaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part D), pp. 474-489 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 483, DOI: 10.5281/zenodo.291971
Cluster Expansion Model for QCD Baryon Number Fluctuations: No Phase Transition at $μ_B / T < π$
Creators: name: Vovchenko, Volodymyr
name: Steinheimer, Jan
name: Philipsen, Owe
name: Stoecker, Horst
Publisher: name: arXiv
Year: 2017
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: A Cluster Expansion Model (CEM), representing a relativistic extension of Mayer's cluster expansion, is constructed to study baryon number fluctuations in QCD. The temperature dependent first two coefficients, corresponding to the partial pressures in the baryon number $B = 1$ and $B = 2$ sectors, are the only model input, which we fix by recent lattice data at imaginary baryochemical potential. All other coefficients are constructed in terms of the first two and required to match the Stefan-Boltzmann limit at $T \to \infty$. The CEM allows calculations of the baryon number susceptibilities $χ_k^B$ to arbitrary order. We obtain excellent agreement with available lattice data for the baryon fluctuation measures $χ_2^B$, $χ_4^B$, $χ_6^B$ and predict higher order susceptibilities, that are not yet available from Lattice QCD. The calculated susceptibilities are then used to extract the radius of convergence of the Taylor expansion of the pressure. The commonly used ratio test fails due to the non-trivial asymptotic behavior of the Taylor coefficients. At the same time, a more elaborate estimator provides finite convergence radii at all temperatures and in agreement with the singularities of Padé approximants. The associated singularities lie in the complex $μ_B/T$-plane and appear smoothly connected to the Roberge-Weiss transition at high temperatures and imaginary chemical potential. No evidence for a phase transition at $μ_B / T \lesssim π$ is found.
description: 7 pages, 4 figures. Version accepted for publication in Physical Review D
Atmospheric Models of Flare Stars: The Quiescent State of Ad Leo
Creators: name: Mauas, P.
name: Falchi, A.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We compute a semi-empirical atmospheric model for the dMe star AD Leo, which constitutes the first model computed to match the continuum observations, as well as a wide set of chromospheric spectral lines. We find good agreement between the computed and observed spectral features, with the exception of the Ca II K line.
description: 13 pages, 10 figures available upon request, tex dialect, ARCETRI-PR-93-29
On relative contributions of fusion and fragmentation mechanisms in J/psi photoproduction at high energy
Creators: name: Saleev, V. A.
name: Shipilova, A. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study J/psi photoproduction via the fusion and fragmentation mechanisms at the HERA Collider within the frameworks of the collinear parton model and the quasi-multi-Regge kinematics approach using the factorization formalism of non-relativistic QCD at leading order in the strong-coupling constant alpha_s and the relative velocity v of the bound quarks. It is shown that the fusion production mechanism dominates over the fragmentation production mechanism at the all relevant J/psi transverse momenta. The J/psi meson p_T-spectra in the fragmentation and fusion production at the asymptotically large p_T have equal slopes in the quasi-multi-Regge kinematics approach, oppocite the collinear parton model.
description: 11 pages, 7 figures, revtex4
On the probability of major-axis precession in triaxial ellipsoidal potentials
Creators: name: Thomas, P. A.
name: Vine, S.
name: Pearce, F. R.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Orbits in triaxial ellipsoidal potentials precess about either the major or minor axis of the ellipsoid. In standard perturbation theory it can be shown that a circular orbit will precess about the minor axis if its angular momentum vector lies in a region bounded by two great circles which pass through the intermediate axis and which are inclined with minimum separation $i_T$ from the minor axis. We test the accuracy of the standard formula for $i_T$ by performing orbit integrations to determine $i_S$, the simulated turnover angle corresponding to $i_T$. We reach two principal conclusions: (i) $i_S$ is usually greater than $i_T$, by as much as 12 degrees even for moderate triaxialities, $A/1.2
description: 4 pages, standard LATEX plus mn.sty file (appended), 4 hardcopy figures available from the author, SUSSEX-AST 93/8-1
Dynamic behaviour of Multilamellar Vesicles under Poiseuille flow
Creators: name: Pommella, Angelo
name: Donnarumma, Dario
name: Caserta, Sergio
name: Guido, Stefano
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Surfactant solutions exhibit multilamellar surfactant vesicles (MLVs) under flow conditions and in concentration ranges which are found in a large number of industrial applications. MLVs are typically formed from a lamellar phase and play an important role in determining the rheological properties of surfactant solutions. Despite the wide literature on the collective dynamics of flowing MLVs, investigations on the flow behavior of single MLVs are scarce. In this work, we investigate a concentrated aqueous solution of linear alkylbenzene sulfonic acid (HLAS), characterized by MLVs dispersed in an isotropic micellar phase. Rheological tests show that the HLAS solution is a shear-thinning fluid with a power law index dependent on the shear rate. Pressure-driven shear flow of the HLAS solution in glass capillaries is investigated by high-speed video microscopy and image analysis. The so obtained velocity profiles provide evidence of a power-law fluid behaviour of the HLAS solution and images show a flow-focusing effect of the lamellar phase in the central core of the capillary. The flow behavior of individual MLVs shows analogies with that of unilamellar vesicles and emulsion droplets. Deformed MLVs exhibit typical shapes of unilamellar vesicles, such as parachute and bullet-like. Furthermore, MLV velocity follows the classical Hetsroni theory for droplets provided that the power law shear dependent viscosity of the HLAS solution is taken into account. The results of this work are relevant for the processing of surfactant-based systems in which the final properties depend on flow-induced morphology, such as cosmetic formulations and food products.
description: 11 pages, 7 figures. Accepted for publication in Soft Matter
The Neutralino Sector in the U(1)-Extended Supersymmetric Standard Model
Creators: name: Choi, S. Y.
name: Haber, H. E.
name: Kalinowski, J.
name: Zerwas, P. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Motivated by grand unified theories and string theories we analyze the general structure of the neutralino sector in the USSM, an extension of the Minimal Supersymmetric Standard Model that involves a broken extra U(1) gauge symmetry. This supersymmetric U(1)-extended model includes an Abelian gauge superfield and a Higgs singlet superfield in addition to the standard gauge and Higgs superfields of the MSSM. The interactions between the MSSM fields and the new fields are in general weak and the mixing is small, so that the coupling of the two subsystems can be treated perturbatively. As a result, the mass spectrum and mixing matrix in the neutralino sector can be analyzed analytically and the structure of this 6-state system is under good theoretical control. We describe the decay modes of the new states and the impact of this extension on decays of the original MSSM neutralinos, including radiative transitions in cross-over zones. Production channels in cascade decays at the LHC and pair production at $e^+e^-$ colliders are also discussed.
description: 50 pages, 9 figures, equations.sty included
Anisotropic neutron star crust, solar system mountains, and gravitational waves
Creators: name: Morales, J. A.
name: Horowitz, C. J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: "Mountains" or non-axisymmetric deformations of rotating neutron stars (NS) efficiently radiate gravitational waves (GW). We consider analogies between NS mountains and surface features of solar system bodies. Both NS and moons such as Europa or Enceladus have thin crusts over deep oceans while Mercury has a thin crust over a large metallic core. Thin sheets may wrinkle in universal ways. Europa has linear features, Enceladus has "Tiger" stripes, and Mercury has lobate scarps. NS may have analogous features. The innermost inner core of the Earth is anisotropic with a shear modulus that depends on direction. If NS crust material is also anisotropic this will produce an ellipticity, when the crust is stressed, that grows with spin frequency. This yields a braking index (log derivative of spin down rate assuming only GW spin down) very different from $n=5$ and could explain the maximum spin observed for neutron stars and a possible minimum ellipticity of millisecond pulsars.
description: 8 pages, 2 figures, Added finite element simulations that confirm results, PRD in press
Global analysis of color fluctuation effects in proton- and deuteron-nucleus collisions at RHIC and the LHC
Creators: name: Alvioli, Massimiliano
name: Frankfurt, Leonid
name: Perepelitsa, Dennis
name: Strikman, Mark
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We test the hypothesis that configurations of a proton with a large-$x$ parton, $x_p \gtrsim 0.1$, have a smaller than average size. The QCD $Q^2$ evolution equations suggest that these small configurations also have a significantly smaller interaction strength, which has observable consequences in collisions with nuclei. We perform a global analysis of jet production data in proton- and deuteron-nucleus collisions at RHIC and the LHC. Using a model which takes a distribution of interaction strengths into account, we quantitatively extract the $x_p$-dependence of the average interaction strength, $σ(x_p)$, over a wide kinematic range. By comparing the RHIC and LHC results, our analysis finds that the interaction strength for small configurations, while suppressed, grows faster with collision energy than does that for average configurations. We check that this energy dependence is consistent with the results of a method which, given $σ(x_p)$ at one energy, can be used to quantitatively predict that at another. This finding further suggests that at even lower energies, nucleons with a large-$x_p$ parton should interact much more weakly than those in an average configuration, a phenomenon in line with explanations of the EMC effect for large-$x_p$ quarks in nuclei based on color screening.
description: 7 pages, 4 figures; Accepted for publication by Phys. Rev. D (Rapid Communications)
Pachyrhizus erosus Urb.
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Pachyrhizus
Pachyrhizus erosus

description: Dolichos bulbosus Linnaeus, Species Plantarum, ed. 2, 2: 1021. 1763, nom. illeg.
"Habitat in Indiis." RCN: 5342.
 Replaced synonym: Dolichos erosus L. (1753).
 Lectotype (Sørensen in Nordic J. Bot. 8: 169, 177. 1988): [icon] " Phaseolus Nevisensis foliis multangulis, tuberosa radice esculenta" in Plukenet, Phytographia: t. 52, f. 4. 1691; Almag. Bot.: 292. 1696.
 Current name:  Pachyrhizus erosus  (L.) Urb. (Fabaceae: Faboideae).
 Note: An illegitimate replacement name for D. erosus L. (1753).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part D), pp. 474-489 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 484, DOI: 10.5281/zenodo.291971
Thermal desorption of astrophysically relevant molecules from forsterite(010)
Creators: name: Suhasaria, T.
name: Thrower, J. D.
name: Zacharias, H.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present temperature programmed desorption (TPD) measurements of CO, CH$_4$, O$_2$ and CO$_2$ from the forsterite(010) surface in the sub-monolayer and multilayer coverage regimes. In the case of CO, CH$_4$ and O$_2$, multilayer growth begins prior to saturation of the monolayer peak, resulting in two clearly distinguishable desorption peaks. On the other hand a single peak for CO$_2$ is observed which shifts from high temperature at low coverage to low temperature at high coverages, sharpening upon multilayer formation. The leading edges are aligned for all the molecules in the multilayer coverage regime indicating zero order desorption. We have extracted multilayer desorption energies for these molecules using an Arrhenius analysis. For sub-monolayer coverages, we observe an extended desorption tail to higher temperature. Inversion analysis has been used to extract the coverage dependent desorption energies in the sub-monolayer coverage regime, from which we obtain the desorption energy distribution. We found that owing to the presence of multiple adsorption energy sites on the crystalline surface the typical desorption energies of these small molecules are significantly larger than obtained in previous measurements for several other substrates. Therefore molecules bound to crystalline silicate surfaces may remain locked in the solid state for a longer period of time before desorption into the gas phase.
description: 11 pages, 5 figures, accepted for publication in MNRAS
Optimized protocol for multigram preparation of emodin anthrone, a precursor in the hypericin synthesis
Creators: name: Gonçalves, Renato Sonchini
name: César, Gabriel Batista
name: Barbosa, Patrícia Magalhães
name: Hioka, Noboru
name: Nakamura, Celso Vataru
name: Bruschi, Marcos Luciano
name: Wilker Caetano
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Plant Biology
subject: Computational Biology

description: Emodin reduction to emodin anthrone comprise one of three process steps involved in the hypericin synthesis, a powerful natural photosensitiser found in plants of the genus Hypericum. In this communication, an optimized protocol was established for emodin reduction enabling an efficient multigram preparation of emodin anthrone. A screening of reducing agent (SnCl2·2H2O and HClconc) under different reaction times was employed in micro-scale and monitored by electronic absorption spectroscopy technique. Data showed lower yields of emodin anthrone when some experimental conditions previously described in the literature were reproduce. However, using the optimized protocol for the emodin reduction these yields were overcoming, and a gram-scale supply experiment was reproducible for the preparation of 10 grams of emodin anthrone with excellent yield.
Cavity-Magnon-Polariton spectroscopy of strongly hybridized electro-nuclear spin excitations in LiHoF4
Creators: name: Yang, Yikai
name: Babkevich, Peter
name: Gaal, Richard
name: Zivkovic, Ivica
name: Ronnow, Henrik M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We first present a formalism that incorporates the input-output formalism and the linear response theory to employ cavity-magnon-polariton coupling as a spectroscopic tool for investigating strongly hybridized electro-nuclear spin excitations. A microscopic relation between the generalized susceptibility and the scattering parameter |S11| in strongly hybridized cavity-magnon-polariton systems has been derived without resorting to semi-classical approximations. The formalism is then applied to both analyze and simulate a specific systems comprising a model quantum Ising magnet (LiHoF4) and a high-finesse 3D re-entrant cavity resonator. Quantitative information on the electro-nuclear spin states in LiHoF4 is extracted, and the experimental observations across a broad parameter range were numerically reproduced, including an external magnetic field titraversing a quantum critical point. The method potentially opens a new avenue not only for further studies on the quantum phase transition in LiHoF4 but also for a wide range of complex magnetic systems.
description: 16 pages, 8 figures
title: Séminaire des doctorants ERIBIA 2021_2022
Publisher: name: Centre d'Enseignement Multimédia Universitaire (C.E.M.U.)Université de Caen Normandie
Year: 2022

description: Le séminaire des doctorants est un événement organisé par les doctorants du laboratoire ERIBIA afin de proposer aux jeunes chercheurs une plateforme d'expression sur laquelle présenter leurs travaux et  discuter de leurs expériences personnelles au gré de séances thématiques.
Secondary metabolites from Antarctic marine-derived fungus Penicillium crustosum HDN153086
Creators: name: Cong-Cong Liu
name: Zhang, Zhen-Zhen
name: Feng, Yan-Yan
name: Qian-Qun Gu
name: Li, De-Hai
name: Zhu, Tian-Jiao
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Neuroscience
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Inorganic Chemistry
subject: Plant Biology
subject: 60506 Virology

description: A new polyene compound (1) and a new diketopiperazine (2), as well as three known compounds (3–5), were isolated from the Antarctic marine-derived fungus Penicillium crustosum HDN153086. The structures of 1–5 were deduced based on MS, NMR and TD-DFT calculations of specific ECD spectra. These compounds were evaluated for their cytotoxic activities against K562 cell line and only compound 2 exhibited cytotoxicity against K562 cell, with IC50 value of 12.7 μM.
Weakly Non-Linear Gaussian Fluctuations and the Edgeworth Expansion
Creators: name: Juszkiewicz, R.
name: Weinberg, D.
name: Amsterdamski, P.
name: Chodorowski, M.
name: Bouchet, F.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We calculate the cosmological evolution of the 1-point probability distribution function (PDF), using an analytic approximation that combines gravitational perturbation theory with the Edgeworth expansion of the PDF. Our method applies directly to a smoothed mass density field or to the divergence of a smoothed peculiar velocity field, provided that rms fluctuations are small compared to unity on the smoothing scale, and that the primordial fluctuations that seed the growth of structure are Gaussian. We use this `Edgeworth approximation' to compute the evolution of $$ and $$; these measures are similar to the skewness and kurtosis of the density field, but they are less sensitive to tails of the probability distribution, so they may be more accurately estimated from surveys of limited volume. We compare our analytic calculations to cosmological N-body simulations in order to assess their range of validity. When $σ\ll 1$, the numerical simulations and perturbation theory agree precisely, demonstrating that the N-body method can yield accurate results in the regime of weakly non-linear clustering. We show analytically that `biased' galaxy formation preserves the relation $ \propto ^2$ predicted by second-order perturbation theory, provided that the galaxy density is a local function of the underlying mass density.
description: Tex + epsf, 29 pages incl. 10 eps figures, subm. to ApJ, IAS preprint
Model-Independent Description and Large Hadron Collider Implications of Suppressed Two-Photon Decay of a Light Higgs Boson
Creators: name: Phalen, Daniel
name: Thomas, Brooks
name: Wells, James D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: For a Standard Model Higgs boson with mass between 115 GeV and 150 GeV, the two-photon decay mode is important for discovery at the Large Hadron Collider (LHC). We describe the interactions of a light Higgs boson in a more model-independent fashion, and consider the parameter space where there is no two-photon decay mode. We argue from generalities that analysis of the $t\bar t h$ discovery mode outside its normally thought of range of applicability is especially needed under these circumstances. We demonstrate the general conclusion with a specific example of parameters of a type I two-Higgs doublet theory, motivated by ideas in strongly coupled model building. We then specify a complete set of branching fractions and discuss the implications for the LHC.
description: 4 pages, 4 figures
Extreme Quiescent Variability of the Transient Neutron Star Low-mass X-ray Binary EXO 1745-248 in Terzan 5
Creators: name: Sandoval, L. E. Rivera
name: Wijnands, R.
name: Degenaar, N.
name: Cavecchi, Y.
name: Heinke, C. O.
name: Cackett, E. M.
name: Homan, J.
name: Altamirano, D.
name: Bahramian, A.
name: Sivakoff, G. R.
name: Miller, J. M.
name: Parikh, A. S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: EXO 1745-248 is a transient neutron-star low-mass X-ray binary that resides in the globular cluster Terzan 5. We studied the transient during its quiescent state using 18 Chandra observations of the cluster acquired between 2003 and 2016. We found an extremely variable source, with a luminosity variation in the 0.5-10 keV energy range of $\sim3$ orders of magnitude (between $3\times10^{31}$ erg s$^{-1}$ and $2\times10^{34}$ erg s$^{-1}$) on timescales from years down to only a few days. Using an absorbed power-law model to fit its quiescent spectra, we obtained a typical photon index of $\sim1.4$, indicating that the source is even harder than during outburst and much harder than typical quiescent neutron stars if their quiescent X-ray spectra are also described by a single power-law model. This indicates that EXO 1745-248 is very hard throughout the entire observed X-ray luminosity range. At the highest luminosity, the spectrum fits better when an additional (soft) component is added to the model. All these quiescent properties are likely related to strong variability in the low-level accretion rate in the system. However, its extreme variable behavior is strikingly different from the one observed for other neutron star transients that are thought to still accrete in quiescence. We compare our results to these systems. We also discuss similarities and differences between our target and the transitional millisecond pulsar IGR J18245-2452, which also has hard spectra and strong variability during quiescence.
description: Accepted for publication in MNRAS
Harry Finlayson - The Jason: a Greek Odyssey
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Sergeant Harry Finlayson, a tank commander in the British 5th Battalion, 7th Armoured Corps during World War II, was captured near Sidi Rezegh airfield in November 1941 after his tank was disabled by a German panzer. He was later transported on the Sebastiano Veniero, a ship carrying POWs, which was torpedoed by the British submarine HMS Porpoise on December 9, 1941. Harry survived the sinking and subsequent ordeal.This summary of the attached PDF document was generated using AI technology.
Clustering in the 1.2 Jy IRAS Galaxy Redshift Survey II: Redshift Distortions and ξ(r_p,π)
Creators: name: Fisher, Karl B
name: Davis, Marc
name: Strauss, Michael A
name: Yahil, Amos
name: Huchra, John P
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We examine the effect of redshift space distortions on the galaxy two-point correlation function $ξ(r_p,π)$ as a function of separations parallel ($r_p$) and perpendicular ($π$) to the line of sight. We find that the relative velocity dispersion of pairs of IRAS galaxies is $σ(r)= 317^{+40}_{-49}$ \kms at $r=1 \mpc$, consistent with previous estimates derived from optically selected galaxy catalogues. Unfortunately, the use of this result to estimate $Ω$ via the Cosmic Virial Theorem is thwarted by large systematic uncertainties. We also fit for the mean relative streaming velocity of pairs, $v_{12}(r)$, which describes the growth of fluctuations on both linear and nonlinear scales. We find that $v_{12}(r) = 167^{+99}_{-67}$ \kms at $r=4$\mpc, so that on average, approximately half the Hubble expansion velocity of pairs at this separation is canceled by infall. At $r=10$\mpc, the amplitude of the streaming is lower and $v_{12}(r) = 109^{+64}_{-47} \kms$. Linear perturbation theory then implies that $Ω^{0.6}/b =0.45^{+0.27}_{-0.18}$ on scales $\sim 10-15 \mpc$. The amplitude of $v_{12}(r)$ is sensitive to the assumed shape of $σ(r)$; if the latter deviates substantially from a virialized form on small scale, our best fit amplitude of $v_{12}(r)$ can deviate by a factor of two.
description: 28 pages of uuencoded compressed postscript; figures included
Lasia spinosa Thwaites
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Alismatales
Araceae
Lasia
Lasia spinosa

description: Dracontium spinosum Linnaeus, Species Plantarum 2: 967. 1753.
"Habitat in Zeylona." RCN: 7010.
 Lectotype (Nicolson in Dassanayake & Fosberg, Revised Handb. Fl. Ceylon 6: 35. 1987): Herb. Hermann 5: 29, No. 328 [icon] (BM), see p. 181.
 Current name:  Lasia spinosa  (L.) Thwaites (Araceae).
 Note: The type is illustrated by Hay (in Blumea 33: 458, f. 15. 1988).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part D), pp. 474-489 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 488, DOI: 10.5281/zenodo.291971
Supernovae, Landau Levels, and Pulsar Kicks
Creators: name: Kisslinger, Leonard S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive the energy asymmetry given the proto-neutronstar during the time when the neutrino sphere is near the surface of the proto-neutron star, using the modified URCA process. The electrons produced with the anti-neutrinos are in Landau levels due to the strong magnetic field, and this leads to asymmetry in the neutrino momentum, and a pulsar kick. Our main prediction is that the large pulsar kicks start at about 10 s and last for about 10 s, with the corresponding neutrinos correlated in the direction of the magnetic field.
description: 10 pages, seven figures
Reducts of Hrushovski's constructions of a higher geometrical arity
Creators: name: Hasson, Assaf
name: Mermelstein, Omer
Publisher: name: arXiv
Year: 2017
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03C30, 03C45

description: Let $\mathbb{M}_n$ denote the structure obtained from Hrushovski's (non collapsed) construction with an n-ary relation and $PG(\mathbb{M}_n)$ its associated pre-geometry. It was shown by Evans and Ferreira that $PG(\mathbb{M}_3)\not\cong PG(\mathbb{M}_4)$. We show that $\mathbb{M}_3$ has a reduct, $\mathbb{M}^{clq}$ such that $PG(\mathbb{M}_4)\cong PG(\mathbb{M}^{clq})$. To achieve this we show that $\mathbb{M}^{clq}$ is a slightly generalised Fraïssé-Hrushovski limit incorporating into the construction non-eliminable imaginary sorts in $\mathbb{M}^{clq}$.
Resolving the Octant theta(23) Degeneracy by Neutrino Oscillation Experiments
Creators: name: Nunokawa, Hiroshi
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss how and to what extent the degeneracy associated with theta(23), if it's not maximal, can be resolved by future oscillation experiments which utilize conventional neutrino beam from accelerator and/or reactor neutrinos.
description: 3 pages, 4 figures, talk given at NOW2006, Otrant, Lecce, Italy, September 9-16, 2006
The large-scale structure in a universe dominated by cold plus hot dark matter
Creators: name: Jing, Y. P.
name: Mo, H. J.
name: Boerner, G.
name: Fang, L. Z.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using numerical simulations, we investigate the large-scale gravitational clustering in a flat universe dominated by cold plus hot dark matter (i.e., $Ω_0=\ocdm+\ohdm+\obaryon=1$). Primordial density fluctuation spectrum is taken to have the Zel'dovich-Harrison form. Three models are studied, with Model I having $\ocdm=0.69$, $\obaryon=0.01$, and $\ohdm=0.30$ in one flavor of neutrinos; Model II having $\ocdm=0.60$, $\obaryon=0.10$, and $\ohdm=0.30$ in one flavor of neutrinos; Model III having $\ocdm=0.69$, $\obaryon=0.01$, and $\ohdm=0.30$ in three flavors of neutrinos. The initial density spectra are normalized by the COBE quadrupole measurement, and galaxies are identified from the peaks of initial density fields above a certain threshold chosen, to match the observed two-point correlation on scales $\ls 10\mpc$. Thus the clustering properties of both the mass and the galaxies are completely specified. The biasing parameter (for the `galaxies') determined in this way is $b_g\approx 1.2$ for Model I, 1.5 for Model II and 1.6 for Model III. The clustering and motions of the simulated `galaxies' are compared with recent observations. The spatial distributions of galaxies in the hybrid models are very frothy; filaments, sheets, voids etc. of sizes 10 -- 50$\mpc$ are frequently seen in the simulations.
description: 28 pages TEX
Structural insight into the antagonistic action of diarylheptanoid on human estrogen receptor alpha
Creators: name: Yuvaraj Geetha Rani
name: Baddireddi Subhadra Lakshmi
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Estrogen receptor α (ER α) is an important therapeutic target in the regulation of ligand dependent signaling in breast cancer. The current study investigates the anti-estrogenic potential of the Diarylheptanoid, 5-hydroxy-7-(4-hydroxy-3 methoxyphenyl)-1-phenyl-3-heptanone (DAH) in silico. Rigid Docking analysis of DAH at the ligand binding domain (LBD) of ER α showed hydrogen bond interactions with Arg394 and Glu353 at the active site, similar to the positive controls 4-Hydroxy Tamoxifen (4-OHT) and Fulvestrant (FUL). The protein and the protein–DAH complexes were further analyzed using molecular dynamics simulations for a time scale of 50 ns using GROMACS. Root mean square fluctuation (RMSF) analysis showed large fluctuations at the N-terminal region of Helices (H) 3, 9 and at the C-terminal region of H11, which could be involved in the antagonistic conformational change. Interestingly, H12 appeared to move away from the ligand binding pocket and occupy the co-activator binding groove at the LBD of ER α. Secondary structure analysis of the protein upon binding of DAH and CUR showed structural change from α-helix to Turn conformation at H4. We hypothesize that this structural change at H4, similar to the positive control, could hinder the activity of AF-2 by blocking the binding of co-activator. These conformational changes in ER α indicate an anti-estrogenic and therapeutic potential of the DAH.