cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dietary proteins as precursors of dipeptidyl-peptidase IV inhibitors — allies to complement pharmacotherapy in the management of type 2 diabetes
Creators: name: Lacroix, Isabelle Marie Estelle
Publisher: name: University of British Columbia
Year: 2015

description: Inhibition of the enzyme dipeptidyl-peptidase IV (DPP-IV) is a promising approach for managing hyperglycemia in type 2 diabetes. The overall objective of this study was to produce, from dietary proteins, peptides able to inhibit the activity of DPP-IV and study their mechanisms of action. The potential of proteins from various food commodities to serve as precursors of DPP-IV inhibitors was first investigated using an in silico approach. Peptide sequences reported to have DPP-IV inhibitory activity were found in all proteins studied, including those from milk, a food product shown in several studies to have beneficial effects on glycemic regulation. Therefore, milk proteins were selected for hydrolysis using different proteases to release the active fragments. Fractionation of the most active hydrolysates, the peptic digests of whey protein isolate and α-lactalbumin, revealed a number of peptides with varying effectiveness and modes of inhibition. Among the sequences identified, the β-lactoglobulin-derived peptides ⁴⁶LKPTPEGDL⁵⁴ and ⁴⁶LKPTPEGDLEIL⁵⁷ displayed the greatest potency (IC₅₀ = 54 and 57 µM, respectively) and inhibited DPP-IV in an un-competitive manner. Peptide arrays were investigated as an alternative strategy to screen food proteins for the presence of DPP-IV inhibitory peptides within their sequences. Using SPOT technology, 114 deca-peptides spanning the entire sequence of α-lactalbumin were synthesized on cellulose membranes and their binding to and inhibition of DPP-IV were studied. SPOT- and traditionally-synthesized peptides displayed consistent trends in DPP-IV inhibitory activity, confirming that peptide arrays can be used to complement or support the traditional methods currently used to identify DPP-IV inhibitors. Lastly, the effect of protein-derived peptides on the activity of porcine and human DPP-IV, the two most commonly used species to assess DPP-IV activity in vitro, was compared. The enzymes differed in their susceptibility to inhibition by 43 of the 62 peptides investigated. Generally, porcine DPP-IV was inhibited more strongly than the human enzyme. Findings from this research showed that DPP-IV inhibitory peptides can be generated from dairy proteins. These natural inhibitors, although less effective than synthetic drugs, could be used to complement pharmacotherapy in the management of type 2 diabetes. Additional research to evaluate their efficacy in humans is, however, needed.
Universality in D-brane Inflation
Creators: name: Agarwal, Nishant
name: Bean, Rachel
name: McAllister, Liam
name: Xu, Gang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the six-field dynamics of D3-brane inflation for a general scalar potential on the conifold, finding simple, universal behavior. We numerically evolve the equations of motion for an ensemble of more than 7 \times 10^7 realizations, drawing the coefficients in the scalar potential from statistical distributions whose detailed properties have demonstrably small effects on our results. When prolonged inflation occurs, it has a characteristic form: the D3-brane initially moves rapidly in the angular directions, spirals down to an inflection point in the potential, and settles into single-field inflation. The probability of N_{e} e-folds of inflation is a power law, P(N_{e}) \propto N_{e}^{-3}, and we derive the same exponent from a simple analytical model. The success of inflation is relatively insensitive to the initial conditions: we find attractor behavior in the angular directions, and the D3-brane can begin far above the inflection point without overshooting. In favorable regions of the parameter space, models yielding 60 e-folds of expansion arise approximately once in 10^3 trials. Realizations that are effectively single-field and give rise to a primordial spectrum of fluctuations consistent with WMAP, for which at least 120 e-folds are required, arise approximately once in 10^5 trials. The emergence of robust predictions from a six-field potential with hundreds of terms invites an analytic approach to multifield inflation.
description: 28 pages, 9 figures
Training a Deep Learning Model to Detect DoS Attacks on Microcontrollers
Creators: name: Mesquita, Deborah
Publisher: name: Zenodo
Year: 2023

description: The ESP32 is a series of microcontrollers with integrated Wi-Fi. They offer an opportunity to empower a variety of IoT projects and users because they’re both low-cost and low-power. Security should be an essential part of the development of IoT systems, and these devices are easy targets for cyberattacks because of the poor cycles of update and maintenance. In this talk, we’ll see how we used deep learning and network traffic analysis knowledge to train and embed a model on the ESP32 capable of preventing DoS attacks. IoT and machine learning combined can solve a lot of today’s problems (including problems of developing countries) and our main goal is to show with low-cost devices we can bring IoT project ideas to real life.
Deep Near-Infrared Imaging of the rho Oph Cloud Core: Clues to the Origin of the Lowest-Mass Brown Dwarfs
Creators: name: Marsh, Kenneth A.
name: Plavchan, Peter
name: Kirkpatrick, J. Davy
name: Lowrance, Patrick J.
name: Cutri, Roc M.
name: Velusamy, Thangasamy
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A search for young substellar objects in the rho Oph cloud core region has been made using the deep-integration Combined Calibration Scan images of the 2MASS extended mission in J, H and Ks bands, and Spitzer IRAC images at 3.6, 4.5, 5.8 and 8.0 microns. The field of view of the combined observations was 1 deg x 9.3 arcmin, and the 5 sigma limiting magnitude at J was 20.5. Comparison of the observed SEDs with the predictions of the COND and DUSTY models, for an assumed age of 1 Myr, supports the identification of many of the sources with brown dwarfs, and enables the estimation of effective temperature, Teff. The cluster members are then readily distinguishable from background stars by their locations on a plot of flux density versus Teff. The range of estimated Teff extends down to ~ 750 K, suggesting the presence of objects of sub-Jupiter mass. The results also suggest that the mass function for the rho Oph cloud resembles that of the sigma Orionis cluster based on a recent study, with both rising towards lower masses. The other main result from our study is the apparent presence of a progressive blueward skew in the distribution of J-H and H-Ks colors, such that the blue end of the range becomes increasingly bluer with increasing magnitude. We suggest that this behavior might be understood in terms of the 'ejected stellar embryo' hypothesis, whereby some of the lowest-mass brown dwarfs could escape to locations close to the front edge of the cloud, and thereby be seen with less extinction.
description: 37 pages, 10 figures; to be published in ApJ
BioExcel-2 Deliverable 3.1 - Use Case Work Plans
Creators: name: Blau, Christian
name: Gapsys, Vytautas
name: de Groot, Bert
name: Bonvin, Alexandre
name: Westermaier, Yvonne
name: Hospital, Adam
name: Ippoliti, Emiliano
name: Bolnykh, Viacheslav
name: Groenhof, Gerrit
name: Morozon, Dmitriy
name: Proeme, Arno
Publisher: name: Zenodo
Year: 2019
Subjects: project management

description: This document introduces and provides detailed work plans for the four BioExcel- 2 Pilot Use Cases that are being undertaken within WP3, namely: Use Case 1: Antibody Design
 Use Case 2: High-throughput Modelling of Interactomes Use Case 3: Rational Drug Design
 Use Case 4: Electronic Interaction Phenomena The Use Cases serve as a focal point driving the development of software and workflows in WP1 & WP2 and as a demonstrator to the wider community of relevant researchers from academia and industry of what can be done with the software and expertise developed within the BioExcel Centre of Excellence. The work plan for each Use Case consists of a number of concrete activities. These are described in detail including with a planned timeline and with milestones that serve as criteria against which progress can be evaluated on an ongoing basis. Expected impacts on future users arising from the Use Case activities are stated. Interdependencies are mapped out between various Use Case activities as well as between the Use Case activities and the code and workflow development work taking place in WP1 and WP2 as well as other factors internal and external to the BioExcel-2 project as a whole.
Supplementary figures for "Early-warning signals of infectious disease transitions: a review"
Creators: name: Southall, Emma
name: Brett, Tobias
name: Tildesley, Michael J.
name: Dyson, Louise
Publisher: name: The Royal Society
Year: 2021
Subjects: Computational Biology

description: Four supplementary figures showing (1) theoretical time series trends when evaluated at the endemic steady state; (2) time series trends of variance, coefficient of variation and autocorrelation lag-1 calculated on monthly pertussis incidence data for eight US states; (3) Comparison between Kendall's τ score for different data aggregation and window size choice, for high and low risk settings and (4) Comparison between Kendall's τ score calculated on spatial-detrending data versus Gaussian-detrending.
Improving the spatial resolution by effective subtraction technique at Irkutsk incoherent scatter radar: the theory and experiment
Creators: name: Berngardt, Oleg I.
name: Kushnarev, Dmitry S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Space Physics (physics.space-ph)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Geophysics (physics.geo-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We describe a sounding technique that allows us to improve spatial resolution of Irkutsk Incoherent Scatter Radar without loosing spectral resolution. The technique is based on transmitting of rectangle pulses of different duration in various sounding runs and subtracting correlation matrixes. Theoretically and experimentally we have shown, that subtraction of the mean-square parameters of the scattered signal for different kinds of the sounding signal one from another allows us to solve the problem within the framework of quasi-static ionospheric parameters approximation.
description: 4 pages, 3 figures, to appear at URSI-2011 conference
A puzzle of radio-quiet quasar PG 1407+265: are optical and X-ray emissions produced from relativistic jet?
Creators: name: Chen, Liang
name: Bai, J. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: PG 1407+265 is a radio quiet quasar but has a relativistic jet. In this report, we show some peculiar properties of its optical and X-ray emissions, which indicate their possible non-thermal origins produced from jet. We use a simple synchrotron + synchrotron self Compton (SSC) model to fit the emissions with different ratios of energy densities between magnetic field and electrons (η=UB/Ue), which predict different γ-ray luminosity. The First LAT AGN Catalog (1LAC) did not include PG 1407+265, which indicates an upper limit of γ-ray luminosity. This upper limit constrains the ratio unreasonable large (η>10^4-10^5). This inversely indicates that the optical and X-ray emissions may be not produced from the beaming jet. We discuss the physical implications of these results.
description: 4 pages, 1 figures, Science China: G accepted
On the Etymologies of Kypros, kyparissos, kypeiron, kapparis, kypros, kardamon, kardamomon, et al.
Creators: name: Gheorghiu, Alexandru
Publisher: name: Zenodo
Year: 2021
Subjects: Ancient Greek, Pre-Greek, Dacian language, Thracian language, Anatolian, Hittite language, Akkadian language, Sumerian language , Proto-Indo-European linguistics, Indo-European, Sanskrit, Ancient Greece, Cyprus, Bronze Age, Copper, History of copper, History of metallurgy, Eastern Mediterranean, Pelasgian, Eteo-Cypriot, Aegean languages, linguistic anthropology, European history, Greek language, Latin language, Romanian language, German language, English language, Armenian language, Mesopotamia, Semitic languages, Proto-Slavic language, Proto-Balto-Slavic, Burushaski language, Hattic language, Sumer, Akkad, Near East, Kypros, cypress tree, cyperus longus, lawsonia inermis, cress, cardamom, history of spices
Salmoxis, Zalmoxis, Gebeleixis, Zebeleixis, Dacian religion, Thracian religion, Dacian mythology, Thracian mythology, Zibelthiurdos, Zbelsiurdos, Albanian mythology, Thunder god, Lightning god, Storm god, Weather god, Thor, Zeus, Jupiter, Teshub, Cybele, Kybele, Kybebe, Kubaba, Kugbau, Hurrian mythology, Hurrian religion, Sumerian mythology, Sumerian religion, Phrygian religion, Phrygian mythology, Phrygian language, Greco-Roman religion, Greco-Roman mythology, caballus, mountain goddess, gudgeon, history of equine terminology, Peri-Indo-European, Semi-Indo-European, Etymology, Palaeo-Balkan languages, sapphire, salamander, Salamis
Eteo-Cretan, Getae, Getic, Getean, Perkwunos, Caperus spinosa, caper plant,

description: On the etymologies of Kypros (Cyprus), kyparissos (=the cypress tree), kypeiron (=Cyperus longus), kapparis (the caper plant), kypros (=Lawsonia inermis), kardamom (=Lepidium sativum in Ancient Greek), kardamomon (=Elettaria cardamomum; the plant known in English as cardamom). And many more new etymologies, such as new never-before revealed etymologies of Daco-Thracian Salmoxis/Zalmoxis, Gebeleixis/Gebeleizis, Zibelthiurdos/Zibelsiurdos, which are of extremely high certainty due to the odds of the way it matched up so exactly to something well-known in the mythology of storm gods in Europe. It’s extremely unlikely that these new etymologies of the Daco-Thracian Zeus are incorrect. This updated version discusses an additional important semantic progression observed in a number of languages, in addition to the semantic progressions discussed in previous versions. This work definitely elucidates a number of ancient Eurasian and Semitic words and PIE roots.
description: Updated sixth version. This is an important update. I have found that I was right about the meaning of Salm-/Zalm and Gebel/Zibel. But S. Olteanu was wrong about the second element. I have found the actual etymology of the entire names now, both elements of the names. It's great news for all interested in Proto-Indo-European linguistics. We have a much better idea and picture of the Dacian and Thracian languages now. This work also elucidates many Ancient Greek words and more.
Dirac Particles in a Gravitational Field
Creators: name: Gosselin, Pierre
name: Mohrbach, Herve
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The semiclassical approximation for the Hamiltonian of Dirac particles interacting with an arbitrary gravitational field is investigated. The time dependence of the metrics leads to new contributions to the in-band energy operator in comparison to previous works on the static case. In particular we find a new coupling term between the linear momentum and the spin, as well as couplings which contribute to the breaking of the particle - antiparticle symmetry.
Selective quantum state tomography for continuous-variable systems
Creators: name: Feldman, Virginia
name: Bendersky, Ariel
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a protocol that allows the estimation of any density matrix element for continuous-variable quantum states, without resorting to the complete reconstruction of the full density matrix. The algorithm adaptatively discretizes the state and then, by resorting to controlled squeezing and translation operations, which are the main requirements for this algorithm, measures the density matrix element value. Furthermore, we show how this method can be used to achieve full quantum state tomography for continuous-variable quantum systems, alongside numerical simulations.
Source Data - Global Mountain Adaptation Responses.xlsx
Creators: name: Kapruwan, Ritika
name: Kumar Saksham, Atishaya
name: Ford, James D.
name: Petzold, Jan
name: McDowell, Graham
name: Rufat, Samuel
name: Schneiderbauer, Stefan
name: Tiwari, Sharad
name: Pandey, Rajiv
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 410103
subject: Human impacts of climate change and human adaptation

description: The dataset contains information used to generate figures of global mountain adaptation responses and their variation across sector, settlement, type and timing
Differential regulation of oligodendrocyte development and myelination by protein tyrosine phosphatase alpha and Wnt signaling
Creators: name: Shih, Yuda
Publisher: name: University of British Columbia
Year: 2016

description: Oligodendrocytes (OLs) are the myelinating cells of the central nervous system (CNS). The myelination process is preceded by molecular and morphological differentiation of oligodendrocyte precursor cells (OPCs) into mature myelinating OLs. Protein tyrosince phosphatase alpha (PTPα) is a brain-enriched tyrosine phosphatase that regulates many cellular processes, including OPC differentiation. Our laboratory has previously demonstrated that PTPα null OPCs have impaired differentiation and brains of PTPα KO mice are hypomyelinated. In this study, I observed defective myelination in OL/neuron co-cultures where wild type (WT) and PTPα knock-out (KO) OPCs were introduced to neurite beds formed by dorsal root ganglion neurons for 14 days and immunostained for myelin basic protein (MBP), a component of the myelin sheath, and neurofilament (NFH), an axonal protein. MBP/NFH co-localization was used as an indicator of potential myelination. Co-localization is significantly reduced by ~50% in co-cultures with KO OPCs as compared to WT OPCs. Additionally, co-cultures with KO OPCs exhibit a reduced ability to form elongated MBP/NFH immunopositive segments, suggestive that in co-cultures with KO OPCs the ability to form elongated axo-glial contacts, a prerequisite for myelination, is impaired. This coincides with a reduction in MBP immunopositivity from ΚΟ OPCs, indicating a differentiation defect in the absence of PTPα. Pharmacological modulation of several signaling pathways has recently been shown to affect OL differentiation, myelination and remyelination. XAV939 is an inhibitor of canonical Wnt signaling and is known to promote OL differentiation and remyelination. Therefore, I investigated whether inhibition of Wnt signaling can remediate PTPα-dependent impairments in OL differentiation and myelination. I observed that inhibiting Wnt signaling can partially rescue PTPα-dependent impairments in differentiation; however, inhibition of Wnt signaling could not remediate the defects in elongation of MBP/NFH immunopositive segments in co-cultures with KO OPCs. While these studies reveal no apparent common molecular candidates between PTPα and Wnt signaling that may regulate OL differentiation, the findings described suggest that PTPα has at least two distinct roles during oligodendrocyte development: promoting OL differentiation by regulating MBP expression, formation and elongation of axo-glial contacts, both of which are prerequisite for myelination.
Superspin glass aging behavior in textured and nontextured frozen ferrofluid
Creators: name: Nakamae, Sawako
name: Dubois, Emmanuelle
name: Dupuis, Vincent
name: L'Hôte, Denis
name: Perzynski, Régine
name: Vincent, Eric
name: Thibierge, Caroline
Publisher: name: arXiv
Year: 2010
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The effect of magnetic anisotropy-axis alignment of individual nanoparticles on the collective aging behavior in the superspin glass state of a frozen ferrofluid has been investigated. The ferrofluid studied here consists of maghemite nanoparticles (γ-Fe2O3, mean diameter = 8.6 nm) dispersed in glycerin at a volume fraction of ~15%. The low temperature aging behavior has been explored through 'zero-field cooled magnetization' (ZFCM) relaxation measurements using SQUID magnetometry. The ZFCM response functions were found to scale with effective age of the system in both textured and non-textured superspin glass states, but with markedly different scaling exponents, μ. The value of μ was found to shift from ~0.9 in non-textured case to ~ 0.6 in the textured case, despite the identical cooling protocol used in both experiments.
Signatures of transition region explosive events in hydrogen Ly-beta profiles
Creators: name: Zhang, M.
name: Xia, L. -D.
name: Tian, H.
name: Chen, Y.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We search for signatures of transition region explosive events (EEs) in hydrogen Ly-beta profiles. Two rasters made by the SUMER (Solar Ultraviolet Measurements of Emitted Radiation) instrument on board SOHO in a quiet-Sun region and an equatorial coronal hole are selected for our study. Transition region explosive events are identified from profiles of C II 1037 Angstrom and O VI 1032 Angstrom, respectively. We compare Ly-beta profiles during EEs with those averaged in the entire quiet-Sun and coronal-hole regions. The relationship between the peak emission of Ly-beta profiles and the wing emission of C II and O VI during EEs is investigated. We find that the central part of Ly-beta profiles becomes more reversed and the distance of the two peaks becomes larger during EEs, both in the coronal hole and in the quiet Sun. The average Ly-beta profile of the EEs detected by C II has an obvious stronger blue peak. During EEs, there is a clear correlation between the increased peak emission of Ly-beta profiles and the enhanced wing emission of the C II and O VI lines. The correlation is more pronounced for the Ly-beta peaks and C II wings, and less significant for the Ly-beta blue peak and O VI blue wing. We also find that the Ly-beta profiles are more reversed in the coronal hole than in the quiet Sun. We suggest that the jets produced by EEs emit Doppler-shifted Ly-beta photons, causing enhanced emission at positions of the peaks of Ly-beta profiles. The more-reversed Ly-beta profiles confirm the presence of a larger opacity in the coronal hole than in the quiet Sun. The finding that EEs modify the Ly-beta line profile in QS and CHs implies that one should be careful in the modelling and interpretation of relevant observational data.
description: accepted for publication in Astronomy and Astrophysics; 8 pages, 2 tables, 5 figures
title: Mobilization (Ottoman Empire/Middle East)
title: Mobilization (Ottoman Empire/Middle East)
Creators: name: Minasidis, Charalampos
Publisher: name: BSB - Bavarian State Library
Year: 2020
Subjects: subject: World War, 1914-1918
subject: Empire ottoman -- Histoire

description: During the Great War, the Ottoman state mobilized its citizens under two war policies, soldiering and provisioning, which led to a disastrous outcome. A “tacit” contract was developed between soldiers and the state, which legitimized, for the former, the continuation of their mobilization or their demobilization through desertion.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Optically-Nonactive Assorted Helices Array with Interchangeable Magnetic/Electric Resonance
Creators: name: Xiong, Xiang
name: Chen, Xiao-Chun
name: Wang, Mu
name: Peng, Ru-Wen
name: Shu, Dajun
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report here the designing of optically-nonactive metamaterial by assembling metallic helices with different chirality. With linearly polarized incident light, pure electric or magnetic resonance can be selectively realized, which leads to negative permittivity or negative permeability accordingly. Further, we show that pure electric or magnetic resonance can be interchanged at the same frequency band by merely changing the polarization of incident light for 90 degrees. This design demonstrates a unique approach to construct metamaterial.
description: 15 pages, 4 figures
Additional file 1 of Analysis of death causes of residents in poverty-stricken Areas in 2020: take Liangshan Yi Autonomous Prefecture in China as an example
Creators: name: Liao, Rujun
name: Hu, Lin
name: Liao, Qiang
name: Zhu, Tianyu
name: Yang, Haiqun
name: Zhang, Tao
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 1. Calculation method of death-related indicators. This Additional file is an introduction to the method of analyzing death-related indicators in this study.
Progress Report on Computing Excited-State Hadron Masses in Lattice QCD
Creators: name: Morningstar, C.
name: Bell, A.
name: Bulava, J.
name: Foley, J.
name: Juge, K. J.
name: Lenkner, D.
name: Wong, C. H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Our progress in computing the spectrum of excited baryons and mesons in lattice QCD is described. Sets of spatially-extended hadron operators with a variety of different momenta are used. A new method of stochastically estimating the low-lying effects of quark propagation is utilized which allows reliable determinations of temporal correlations of both single-hadron and multi-hadron operators. The method is tested on the isoscalar mesons in the scalar, pseudoscalar, and vector channels, and on the two-pion system of total isospin I=0,1,2.
description: 7 pages, 4 figures, talk given at the International Conference on the Structure of Baryons, Osaka, Japan, Dec 7-11, 2010
Puckering Free Energy of Pyranoses: an NMR and Metadynamics--Umbrella Sampling Investigation
Creators: name: Autieri, Emmanuel
name: Sega, Marcello
name: Pederiva, Francesco
name: Guella, Graziano
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present the results of a combined metadynamics--umbrella sampling investigation of the puckered conformers of pyranoses described using the gromos 45a4 force field. The free energy landscape of Cremer--Pople puckering coordinates has been calculated for the whole series of alpha and beta aldohexoses, showing that the current force field parameters fail in reproducing proper puckering free energy differences between chair conformers. We suggest a modification to the gromos 45a4 parameter set which improves considerably the agreement of simulation results with theoretical and experimental estimates of puckering free energies. We also report on the experimental measurement of altrose conformers populations by means of NMR spectroscopy, which show good agreement with the predictions of current theoretical models.
Anisotropy-axis orientation effect on the magnetization of γ-Fe2O3 frozen ferrofluid
Creators: name: Nakamae, Sawako
name: Thibierge, Caroline
name: Komatsu, Katsuyoshi
name: L'Hôte, Denis
name: Vincent, E.
name: Dubois, Emmanuel
name: Dupuis, V.
name: Perzynski, Régine
Publisher: name: arXiv
Year: 2010
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The effect of magnetic anisotropy-axis alignment on the superparamagnetic (SPM) and superspin glass (SSG) states in a frozen ferrofluid has been investigated. The ferrofluid studied here consists of maghemite nanoparticles (γ-Fe2O3, mean diameter = 8.6 nm) dispersed in glycerine at a volume fraction of ~15%. In the high temperature SPM state, the magnetization of aligned ferrofluid increased by a factor varying between 2 and 4 with respect to that in the randomly oriented state. The negative interaction energy obtained from the Curie-Weiss fit to the high temperature susceptibility in the SPM states as well as the SSG phase onset temperature determined from the linear magnetization curves were found to be rather insensitive to the anisotropy axis alignment. The low temperature aging behaviour, explored via "zero-field cooled magnetization" (ZFCM) relaxation measurements, however, show distinct difference in the aging dynamics in the anisotropy-axis aligned and randomly oriented SSG states.
description: to appear in Journal of Physics D: Applied Physics
Galaxy and Mass Assembly (GAMA): The GAMA Galaxy Group Catalogue (G3Cv1)
Creators: name: Robotham, A. S. G.
name: Norberg, P.
name: Driver, S. P.
name: Baldry, I. K.
name: Bamford, S. P.
name: Hopkins, A. M.
name: Liske, J.
name: Loveday, J.
name: Merson, A.
name: Peacock, J. A.
name: Brough, S.
name: Cameron, E.
name: Conselice, C. J.
name: Croom, S. M.
name: Frenk, C. S.
name: Gunawardhana, M.
name: Hill, D. T.
name: Jones, D. H.
name: Kelvin, L. S.
name: Kuijken, K.
name: Nichol, R. C.
name: Parkinson, H. R.
name: Pimbblet, K. A.
name: Phillipps, S.
name: Popescu, C. C.
name: Prescott, M.
name: Sharp, R. G.
name: Sutherland, W. J.
name: Taylor, E. N.
name: Thomas, D.
name: Tuffs, R. J.
name: van Kampen, E.
name: Wijesinghe, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using the complete GAMA-I survey covering ~142 sq. deg. to r=19.4, of which ~47 sq. deg. is to r=19.8, we create the GAMA-I galaxy group catalogue (G3Cv1), generated using a friends-of-friends (FoF) based grouping algorithm. Our algorithm has been tested extensively on one family of mock GAMA lightcones, constructed from Lambda-CDM N-body simulations populated with semi-analytic galaxies. Recovered group properties are robust to the effects of interlopers and are median unbiased in the most important respects. G3Cv1 contains 14,388 galaxy groups (with multiplicity >= 2$), including 44,186 galaxies out of a possible 110,192 galaxies, implying ~40% of all galaxies are assigned to a group. The similarities of the mock group catalogues and G3Cv1 are multiple: global characteristics are in general well recovered. However, we do find a noticeable deficit in the number of high multiplicity groups in GAMA compared to the mocks. Additionally, despite exceptionally good local spatial completeness, G3Cv1 contains significantly fewer compact groups with 5 or more members, this effect becoming most evident for high multiplicity systems. These two differences are most likely due to limitations in the physics included of the current GAMA lightcone mock. Further studies using a variety of galaxy formation models are required to confirm their exact origin.
description: 31 pages, 22 figures (lo-res astro-ph, hi-res on demand or via MNRAS), accepted for publication in MNRAS
Enquête sur les Directions d’École Suisses 2021 - Rapport synthétique
Creators: name: Tulowitzki, Pierre
name: Pietsch, Marcus
name: Progin, Laetitia
name: Berger, Jörg
name: Grigoleit, Ella
name: Sposato, Gloria Grazia
Publisher: name: Fachhochschule Nordwestschweiz FHNW
Year: 2022
Subjects: direction d'école
Leadership
évolution de l'établissement scolaire
EDES

description: Les directions d’école jouent un rôle important dans l’organisation et l’évolution des établissements scolaires. En même temps, il n’y a guère de résultats à l'échelle de toute la Suisse sur cette position centrale : pourquoi ont-elles choisi ce métier? Qu’est-ce qui les (dé)motive dans leur profession? Quel rôle jouent les facteurs individuels et structurels dans leur engagement? Comment les directions d’école gèrent-elles l’équilibre entre la stabilité et le changement? Comment travaillent-elles en équipe? Ont-elles un impact sur la pédagogie de l’établissement scolaire? Afin de répondre à ces questions, l’enquête sur les Directions d’École Suisses a été créée. C’est un projet collaboratif piloté par la CLACESO, le VSLCH et la Haute École Spécialisée de la Suisse du Nord-Ouest FHNW, avec la participation de la HEP Vaud. L’objectif est de mieux comprendre qui sont les directions d’établissement, comment elles agissent, comment elles soutiennent le fonctionnement de l’école, le travail pédagogique et les élèves, et comment leur profession évolue.
N=8 Supergravity with Local Scaling Symmetry
Creators: name: Diffon, Arnaud Le
name: Samtleben, Henning
name: Trigiante, Mario
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct maximal supergravity in four dimensions with local scaling symmetry as deformation of the original Cremmer-Julia theory. The different theories which include the standard gaugings are parametrized by an embedding tensor carrying 56+912 parameters. We determine the form of the possible gauge groups and work out the complete set of field equations. As a result we obtain the most general couplings compatible with N=8 supersymmetry in four dimensions. A particular feature of these theories is the absence of an action and an additional positive contribution to the effective cosmological constant. Moreover, these gaugings are generically dyonic, i.e. involve simultaneously electric and magnetic vector fields.
description: 39 pages
Optical resonator sensors and systems
Creators: name: Talebi Fard, Sahba
Publisher: name: University of British Columbia
Year: 2015

description: Silicon-on-insulator (SOI)-based sensors are attractive for sensing applications in environmental safety, oil and gas, medical research, and clinical applications. Since these devices are typically developed using Complementary metal-oxide-semiconductor (CMOS)-compatible multi-project-wafer (MPW) shuttles, they bring the potential for having sensing systems on chips (SSOCs), and for mass fabrication and low cost production. The objective of this thesis is to improve the sensitivity, accuracy, and repeatability of sensors fabricated on the SOI platform. Such sensors have the potential to be the key components of an SSOC. One can increase the sensitivity of a resonator sensor by increasing the interaction between the evanescent field of the guided mode and the analyte. In this thesis, two methods for increasing this interaction in micro-ring resonator-based sensors are investigated: 1) using the transverse electric (TE) guided mode in ultra-thin strip waveguides and 2) using the quasi-transverse magnetic (TM) guided mode in thin strip waveguides. Using analyses and simulations, micro-ring sensors were designed to be fabricated within the constraints of a MPW CMOS-compatible process. Using the TE sensors, the temperature-induced errors were reduced by a factor of three; and the TM sensors exhibited twice the sensitivity of the best SOI micro-ring resonator-based sensors reported to date. Moving towards the actual implementation of an SSOC, a system of sensors was design to correct for unwanted variations in the measurements. This system drew on multivariate techniques to achieve improvements that resulted in measurements that were more repeatable and more accurate in the presence of environmental variations. The capability of this system is investigated by designing a cascade of previously developed micro-ring sensors with various waveguide thicknesses. With this system of sensors, we achieved an R2 value of predictions over 0.996 in the presence of a 2 K temperature drift. This approach significantly improved the repeatability and reliability of the measurements in the presence of undesirable variations and drifts. In another move towards achieving an SSOC, integrating photodetectors in resonator sensors was investigated. To accomplish this, ion-implantation on micro-ring sensors was used. Such integrated photodetector-sensors were designed, fabricated, and tested. Their measured sensitivities were within 90% of the expected values.
Balberstrasse - Wollishofer Blog
Creators: name: Brändli, Sebastian
Publisher: name: Zentralbibliothek Zürich
Year: 2021
Subjects: subject: 690 Hausbau, Bauhandwerk
subject: Zürich-Wollishofen
subject: Wohnungsbaugenossenschaft
subject: Siedlung
subject: Hausbau

description: Ein Blog zu Geschichte und Quartierleben des Zürcher Stadtquartiers Wollishofen auf wollipedia.ch. Mit Texten von Sebastian Brändli (SB) und Ansichtskarten aus der Sammlung von Markus Zimmermann (MZ).
Double-lined Spectroscopic Binary Stars in the Radial Velocity Experiment Survey
Creators: name: Matijevic, G.
name: Zwitter, T.
name: Munari, U.
name: Bienayme, O.
name: Binney, J.
name: Bland-Hawthorn, J.
name: Boeche, C.
name: Campbell, R.
name: Freeman, K. C.
name: Gibson, B.
name: Gilmore, G.
name: Grebel, E. K.
name: Helmi, A.
name: Navarro, J. F.
name: Parker, Q. A.
name: Seabroke, G. M.
name: Siebert, A.
name: Siviero, A.
name: Steinmetz, M.
name: Watson, F. G.
name: Williams, M.
name: Wyse, R. F. G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We devise a new method for the detection of double-lined binary stars in a sample of the Radial Velocity Experiment (RAVE) survey spectra. The method is both tested against extensive simulations based on synthetic spectra, and compared to direct visual inspection of all RAVE spectra. It is based on the properties and shape of the cross-correlation function, and is able to recover ~80% of all binaries with an orbital period of order 1 day. Systems with periods up to 1 year are still within the detection reach. We have applied the method to 25,850 spectra of the RAVE second data release and found 123 double-lined binary candidates, only eight of which are already marked as binaries in the SIMBAD database. Among the candidates, there are seven that show spectral features consistent with the RS CVn type (solar type with active chromosphere) and seven that might be of W UMa type (over-contact binaries). One star, HD 101167, seems to be a triple system composed of three nearly identical G-type dwarfs. The tested classification method could also be applicable to the data of the upcoming Gaia mission.
description: 12 pages, 7 figures, 2 tables, accepted for publication in Astronomical Journal
The opto-mechanical alignment procedure of the VLT Survey Telescope
Creators: name: Arcidiacono, Carmelo
name: Ragazzoni, Roberto
name: Umbriaco, Gabriele
name: Farinato, Jacopo
name: Magrin, Demetrio
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The VLT Survey Telescope is a f/5.5 modified Ritchey-Chretien imaging telescope, which is being installed at the ESO-Paranal Observatory. It will provide a one square degree corrected field of view to perform survey-projects in the wavelength range from UV to I band. In this paper we describe the opto-mechanical alignment procedure of the 2.61m primary mirror, the secondary and correctors lenses onto the mechanical structure of the telescope. The alignment procedure does not rely on the mechanical precision of the mirrors. It will be achieved using ad-hoc alignment tools, described in the paper, which allows the spatial determination of optical axes (and focuses where necessary) of the optical components with respect to the axis defined by the rotation of a laser beam mounted on the instrument bearing.
description: 10 pages, 10 figures, Proceeding 773357 of the SPIE Conference "Ground-based and Airborne Telescopes III", Sunday 27 June 2010, San Diego, California, USA
Effects of Residue Background Events in Direct Detection Experiments on Identifying WIMP Dark Matter
Creators: name: Shan, Chung-Lin
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We reexamine the model-independent data analysis methods for extracting properties of Weakly Interacting Massive Particles (WIMPs) by using data (measured recoil energies) from direct Dark Matter detection experiments directly and, as a more realistic study, consider a small fraction of residue background events, which pass all discrimination criteria and then mix with other real WIMP-induced signals in the analyzed data sets. In this talk, the effects of residue backgrounds on the determination of the WIMP mass as well as the spin-independent WIMP coupling on nucleons will be discussed.
description: 8 pages, 6 eps figures, to appear in the proceedings of the 2nd International Workshop on Dark Matter, Dark Eaergy, and Matter-Antimatter Asymmetry, Hsinchu, Taiwan, November 5-6, 2010
Large-scale Structure in f(T) Gravity
Creators: name: Li, Baojiu
name: Sotiriou, Thomas P.
name: Barrow, John D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work we study the cosmology of the general f(T) gravity theory. We express the modified Einstein equations using covariant quantities, and derive the gauge-invariant perturbation equations in covariant form. We consider a specific choice of f(T), designed to explain the observed late-time accelerating cosmic expansion without including an exotic dark energy component. Our numerical solution shows that the extra degree of freedom of such f(T) gravity models generally decays as one goes to smaller scales, and consequently its effects on scales such as galaxies and galaxies clusters are small. But on large scales, this degree of freedom can produce large deviations from the standard LCDM scenario, leading to severe constraints on the f(T) gravity models as an explanation to the cosmic acceleration.
description: 13 pages, 3 figures
Study of anomalous top quark FCNC interactions via $tW$-channel of single top
Creators: name: Etesami, S. M.
name: Najafabadi, M. Mohammadi
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The potential of the LHC for investigation of anomalous top quark interactions with gluon ($tug,tcg$) through the production of $tW$-channel of single top quark is studied. In the Standard Model, the single top quarks in the $tW$-channel mode are charge symmetric meaning that $σ(pp\to t+W^{-}) = σ(pp\to \bar{t}+W^{+})$. However, the presence of anomalous FCNC couplings leads to charge asymmetry. In this paper a method is proposed in which this charge asymmetry may be used to constrain anomalous FCNC couplings. The strength of resulting constraints is estimated for the LHC for the center of mass energies of 7 and 14 TeV.
description: 13 pages, 4 figures, new references added
Linkage liaisons - a scenario for the computational study of conflict and structure in multiagent systems
Creators: name: Malsch, Thomas
name: Paetow, Kai
name: Rovatsos, Michael
Publisher: name: TUHH Universitätsbibliothek
Year: 2002
Subjects: subject: linkages
subject: linkage networks
subject: interactionism
subject: liaison model
subject: 54.84:Webmanagement
subject: 54.08:Informatik in Beziehung zu Mensch und Gesellschaft
subject: 71.30:Soziale Gruppen: Allgemeines
subject: Internet
subject: Hyperlink
subject: Mehragentensystem
subject: 71.30
subject: 54.08
subject: 54.84
subject: 004

description: Website presentation is becoming a crucial issue as more and more services of all different kinds are offered by more and more content providers to a rapidly growing audience on the Internet. In the face of accelerated competition and intransparency it is highly important for a service provider to present himself with an appealing and professionally designed website. To attract the attention of as many Internet surfers as possible and to raise their curiosity and interest, service providers will have to do everything to enhance their website’s traffic and to transform casual visitors into habitual customers and partners. In order to attract more traffic, linkages directing the user from website to website is a crucial issue and building-up strategic linkage liaisons with other website owners on a B2B basis will be one of the future key elements of successful website presentation. Linkage liaisons between websites will give rise to emergent network structures (professional and non-professional) as well as to all sorts of minor and major linkage conflicts that arise among website owners (or their agents) in the course of incrementally engaging in building up new linkages and deleting old ones. Hence, linkage liaisons look like a particularly suitable scenario for designing, implementing, and testing models for real world applications and for scientific research purposes of comparing interactionism with social systems approaches in sociology. We assume that liaison models differ from more conventional DAI applications not only because they operate on a permanent basis (cf. computational ecology) and that they produce, reproduce and modify an ”emergent” social structure while resolving (or not resolving!) conflictive episodes. The presumed advantages of the proposed model, both from a software engineering and from a sociological perspective, should be seen in the way that a linkage networks would have to meet the demands of shifting from a highly efficient and cost saving routine mode into a resource consumptive conflict mode and back again into a new routine mode after the conflict has been settled. In other words: the system should be able to learn from conflicts and, in doing so, an agent society would operate like a self-organising mechanism or a selfsustaining general purpose infrastructure.
Temperature dependence of the contact in a unitary Fermi gas
Creators: name: Kuhnle, E. D.
name: Hoinka, S.
name: Dyke, P.
name: Hu, H.
name: Hannaford, P.
name: Vale, C. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The contact ${\cal I}$, introduced by Tan, has emerged as a key parameter characterizing universal properties of strongly interacting Fermi gases. For ultracold Fermi gases near a Feshbach resonance, the contact depends upon two quantities: the interaction parameter $1/(k_F a)$, where $k_F$ is the Fermi wave-vector and $a$ is the $s$-wave scattering length, and the temperature $T/T_F$, where $T_F$ is the Fermi temperature. We present the first measurements of the temperature dependence of the contact in a unitary Fermi gas using Bragg spectroscopy. The contact is seen to follow the predicted decay with temperature and shows how pair-correlations at high momentum persist well above the superfluid transition temperature.
description: 4 pages, 2 figures