cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonequilibrium dynamics in deconfined quantum critical point revealed by imaginary-time evolution
Creators: name: Shu, Yu-Rong
name: Jian, Shao-Kai
name: Yin, Shuai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: As proposed to describe putative continuous phase transitions between two ordered phases, the deconfined quantum critical point (DQCP) goes beyond the prevalent Landau-Ginzburg-Wilson (LGW) paradigm since its critical theory is not expressed in terms of the order parameters characterizing either state, but involves fractionalized degrees of freedom and an emergent symmetry. So far, great efforts have been spent on its equilibrium properties, but the nonequilibrium properties therein are largely unknown. Here we study the nonequilibrium dynamics of the DQCP via the imaginary-time evolution in the two-dimensional (2D) J-Q$_3$ model. We discover fascinating nonequilibrium scaling behaviors hinging on the process of fractionization and the dynamics of emergent symmetry associated with two length scales. Our findings not only constitute a new realm of nonequilibrium criticality in DQCP, but also offer a controllable knob by which to investigate the dynamics in strongly correlated systems.
description: 19 pages, 14 figures
Discovery of Persistent Quasi-Periodic Oscillations in Accreting White Dwarfs: A New Link to X-ray Binaries
Creators: name: Veresvarska, M.
name: Scaringi, S.
name: Knigge, C.
name: Paice, J.
name: Buckley, D. A. H.
name: Segura, N. Castro
name: de Martino, D.
name: Groot, P. J.
name: Ingram, A.
name: Irving, Z. A.
name: Szkody, P.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Almost all accreting black hole and neutron star X-ray binary systems (XRBs) exhibit prominent brightness variations on a few characteristic time-scales and their harmonics. These quasi-periodic oscillations (QPOs) are thought to be associated with the precession of a warped accretion disc, but the physical mechanism that generates the precessing warp remains uncertain. Relativistic frame dragging (Lense-Thirring precession) is one promising candidate, but a misaligned magnetic field is an alternative, especially for neutron star XRBs. Here, we report the discovery of 5 accreting white dwarf systems (AWDs) that display strong optical QPOs with characteristic frequencies and harmonic structures that suggest they are the counterpart of the QPOs seen in XRBs. Since AWDs are firmly in the classical (non-relativistic) regime, Lense-Thirring precession cannot account for these QPOs. By contrast, a weak magnetic field associated with the white dwarf can drive disc warping and precession in these systems, similar to what has been proposed for neutron star XRBs. Our observations confirm that magnetically driven warping is a viable mechanism for generating QPOs in disc-accreting astrophysical systems, certainly in AWDs and possibly also in (neutron star) XRBs. Additionally, they establish a new way to estimate magnetic field strengths, even in relatively weak-field systems where other methods are not available.
description: 16 pages, 9 figures, accepted for publication in MNRAS
A Quasi-periodic Oscillation in the gamma-ray Emission from the Non-blazar Active Galactic Nucleus PKS 0521-36
Creators: name: Zhang, Haiyun
name: Yan, Dahai
name: Zhang, Pengfei
name: Yang, Shenbang
name: Zhang, Li
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Long-term gamma-ray variability of a non-blazar Active Galactic Nucleus (AGN) PKS 0521-36 is investigated by using Fermi-LAT pass 8 data covering from 2008 August to 2021 March. The results show that the histogram of the gamma-ray fluxes follows a log-normal distribution. Interestingly, in the analysis of about 5.8-year (from MJD 56317 to 58447) LAT data between two outbursts (occurring during 2012 October and 2019 May respectively), a quasi-periodic oscillation (QPO) with a period of about 1.1 years (about 5 sigma of significance) is found in the Lomb-Scargle Periodogram (LSP), the Weighted Wavelet Z-transform (WWZ) and the REDFIT results. This quasi-periodic signal also appears in the results of Gaussian process modeling the light curve. Therefore, the robustness of the QPO is examined by four different methods. This is the first gamma-ray QPO found in a mildly beamed jet. Our results imply that the gamma-ray outbursts play an important role in the formation of the gamma-ray QPO.
Type Ia supernovae in the star formation deserts of spiral host galaxies
Creators: name: Hakobyan, A. A.
name: Karapetyan, A. G.
name: Barkhudaryan, L. V.
name: Gevorgyan, M. H.
name: Adibekyan, V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using a sample of nearby spiral galaxies hosting 185 supernovae (SNe) Ia, we perform a comparative analysis of the locations and light curve decline rates $(Δm_{15})$ of normal and peculiar SNe Ia in the star formation deserts (SFDs) and beyond. To accomplish this, we present a simple visual classification approach based on the UV/H$α$ images of the discs of host galaxies. We demonstrate that, from the perspective of the dynamical timescale of the SFD, where the star formation (SF) is suppressed by the bar evolution, the $Δm_{15}$ of SN Ia and progenitor age can be related. The SFD phenomenon gives an excellent possibility to separate a subpopulation of SN Ia progenitors with the ages older than a few Gyr. We show, for the first time, that the SFDs contain mostly faster declining SNe Ia $(Δm_{15} > 1.25)$. For the galaxies without SFDs, the region within the bar radius, and outer disc contain mostly slower declining SNe Ia. To better constrain the delay times of SNe Ia, we encourage new studies (e.g. integral field observations) using the SFD phenomenon on larger and more robust datasets of SNe Ia and their host galaxies.
description: 6 pages, 2 figures, 5 tables, online data, accepted for publication in MNRAS Letters
Conditions leading to grassroots initiatives for the co-management of subsistence uses of wildlife in Alaska
Creators: name: Schwarber, James A.
Publisher: name: University of British Columbia
Year: 2008

description: Between 1985 and 1991, grassroots co-management initiatives for subsistence uses of wildlife emerged from three of Alaska's six subsistence resource regions. Initiatives from the northwest Arctic, Interior, and Western regions ranged from requests for the delegation of management authority from the State Board of Game and federal government to village governments, to proposals for the contracting of federal subsistence management responsibilities to tribal groups. This thesis considers regional variations in six factors as possible explanations of the emergence of terrestrial wildlife co-management initiatives in certain regions: 1) magnitude and type of subsistence resource utilization; 2) degree of cultural homogeneity and Native percentage of population; 3) strength of leadership towards subsistence; 4) degree of congruity between state wildlife regulations and traditional subsistence activities; 5) differences in perception of state regulatory system; and 6) federal jurisdiction over land and Native affairs. Interviews, subsistence literature, and records relating to the state's regulatory system provided research material. Analysis involved comparing the presence and relative strength of each of the six factors in regions where co-management proposals emerged and those where they did not. Four factors were found to be most important for the emergence of co-management initiatives in certain regions: long-term leadership commitment towards subsistence issues; a high degree of per capita subsistence resource use, regardless of resource type; cultural homogeneity in association with a predominantly Native population; and the presence of extensive federal lands. Taken together, these four factors make a sufficient set of conditions for co-management to emerge. Where leadership was lacking, and the other three predictors were present, co-management did not emerge. Thus, strength of leadership commitment to the protection of Native subsistence activities proved to be the key characteristic separating the three regions first to initiate co-management proposals, and the other regions following their lead. Incongruities between state regulations and subsistence uses, and negative perceptions of the state system by subsistence users were also found to have contributed to co-management initiatives, but they were less important factors. Subsistence management has been characterized by interjurisdictional and user-group conflicts, which co-management may help to resolve. The implications of the findings for improving wildlife and subsistence management through co-management are that policies may be developed that usefully reinforce subsistence leadership capabilities and integrate other predictors into management efforts.
[Home film]
Creators: name: Haas, Mary R.
name: Subhanka, Heng
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021

description: 16mm film recorded at the participants' home at 1435 Arch St. and in downtown Berkeley. Date based on film edge codes, which demonstrate that film was manufactured in 1946. Film includes footage of a woman who is possibly a relative of Subhanka, and cat. Film is likely associated with photographic negatives in boxes 186 and 187 in the Mary Rosamond Haas Papers at the American Philosophical Society, which come from the Arch St. home before a summer vacation beginning in mid-June.
Επίδραση της χρόνιας άσκησης στα επίπεδα των επιμέρους λιπαρών οξέων και πρωτεϊνών που συμμετέχουν στο μεταβολισμό των λιπιδίων σε ιστούς επιμύων
Creators: name: Νικολαϊδης, Μιχάλης
Publisher: name: Aristotle University of Thessaloniki
Year: 2004
Subjects: Σύσταση λιπαρών οξέων
Τροχός
Φωσφολιπίδια
Τριακυλογλυκερόλες
Fatty acid composition
Wheel
Phospholipids
Triacylglycerols

description: Οι μελέτες που εξετάζουν την επίδραση της άσκησης στη σύσταση σε λιπαρά οξέα των ιστών πειραματόζωων εμφανίζονται στη βιβλιογραφία με διαρκώς αυξανόμενο ρυθμό. Ωστόσο, δεν υπάρχει ομοφωνία αναφορικά με την επίδραση της άσκησης. Σκοπός της παρούσας μελέτης ήταν να προσθέσει νέα δεδομένα στο θέμα, εξετάζοντας τις επιδράσεις της μακροχρόνιας άσκησης επιμύων στον τροχό, στη σύσταση σε λιπαρά οξέα των φωσφολιπιδίων και των τριακυλογλυκερολών του ορού, δύο σκελετικών μυών διαφορετικού τύπου, της καρδιάς και του ήπατος. Βρήκα με πολλές σημαντικές διαφορές μεταξύ των προπονημένων και των απροπόνητων πειρατόζωων αναφορικά με το προφίλ λιπαρών οξέων των φωσφολιπιδίων και των τριακυλογλυκερολών στον ορό και σε όλους τους ιστούς εκτός από το ήπαρ. Συμπερασματικά, η μακροχρόνια άσκηση τροποποίησε το προφίλ λιπαρών οξέων των φωσφολιπιδίων και των τριακυλογλυκερολών του ορού, του σκελετικού μυός και της καρδιάς. Επομένως, μπορεί να θεωρείται τροποποιητής της σύστασης σε λιπαρά οξέα αυτών των ιστών
description: Studies addressing the effect of exercise on the fatty acid composition of animal tissues have been appearing in the literature at a rising rate. However, there is no consensus as to the effect of exercise. The purspose of this study was to shed some new light on this controversial topic, by examining the effects of long-term wheel running of rats on the fatty acid composition of phospholipids and triacylglycerols in serum, two skeleted muscles of different type, heart and liver. We found several significant differences between trained and untrained rats in the fatty acid profile of philospholipids and triacylglycerols in serum and all tissues except liver. In conclusion, long-term wheel running modified the fatty acid profile of phospholipids and triacylglycerols in rat saring skeletal muscle and heart, and could thus be considered as a modulator of their fatty acid composition
Note on Redshift Distortion in Fourier Space
Creators: name: Cai, Yan-Chuan
name: Pan, Jun
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We explore features of redshift distortion in Fourier analysis of N-body simulations. The phases of the Fourier modes of the dark matter density fluctuation are generally shifted by the peculiar motion along the line of sight, the induced phase shift is stochastic and has probability distribution function (PDF) symmetric to the peak at zero shift while the exact shape depends on the wave vector, except on very large scales where phases are invariant by linear perturbation theory. Analysis of the phase shifts motivates our phenomenological models for the bispectrum in redshift space. Comparison with simulations shows that our toy models are very successful in modeling bispectrum of equilateral and isosceles triangles at large scales. In the second part we compare the monopole of the power spectrum and bispectrum in the radial and plane-parallel distortion to test the plane-parallel approximation. We confirm the results of Scoccimarro (2000) that difference of power spectrum is at the level of 10%, in the reduced bispectrum such difference is as small as a few percents. However, on the plane perpendicular to the line of sight of k_z=0, the difference in power spectrum between the radial and plane-parallel approximation can be more than 10%, and even worse on very small scales. Such difference is prominent for bispectrum, especially for those configurations of tilted triangles. The non-Gaussian signals under radial distortion on small scales are systematically biased downside than that in plane-parallel approximation, while amplitudes of differences depend on the opening angle of the sample to the observer. The observation gives warning to the practice of using the power spectrum and bispectrum measured on the k_z=0 plane as estimation of the real space statistics.
description: 15 pages, 8 figures. Accepted for publication in ChJAA
Phase-induced topological superconductivity in a planar heterostructure
Creators: name: Lesser, Omri
name: Saydjari, Andrew
name: Wesson, Marie
name: Yacoby, Amir
name: Oreg, Yuval
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Topological superconductivity in quasi-one-dimensional systems is a novel phase of matter with possible implications for quantum computation. Despite years of effort, a definitive signature of this phase in experiments is still debated. A major cause of this ambiguity is the side effects of applying a magnetic field: induced in-gap states, vortices, and alignment issues. Here we propose a planar semiconductor-superconductor heterostructure as a platform for realizing topological superconductivity without applying a magnetic field to the 2D electron gas hosting the topological state. Time-reversal symmetry is broken only by phase-biasing the proximitizing superconductors, which can be achieved using extremely small fluxes or bias currents far from the quasi-one-dimensional channel. Our platform is based on interference between this phase biasing and the phase arising from strong spin-orbit coupling in closed electron trajectories. The principle is demonstrated analytically using a simple model, and then shown numerically for realistic devices. We show a robust topological phase diagram, as well as explicit wavefunctions of Majorana zero modes. We discuss experimental issues regarding the practical implementation of our proposal, establishing it as an accessible scheme with contemporary experimental techniques.
description: 11 pages, 10 figures
Αλληλεπίδρασις μεταξύ των συστημάτων συγκομιδής ξύλου και της συμπεριφοράς των δασικών οικοσυστημάτων(εδαφικοί και υδρονομικοί παράγοντες)
Creators: name: Γκανάτσιος, Χαρίσιος Π.
Publisher: name: Aristotle University of Thessaloniki
Year: 2004
Subjects: Συστήματα συγκομιδής ξύλου
Υδατικό ισοζύγιο
Δασικός τάπητας
Wood harvesting systems
Water balance
Forest floor/surface soil

description: Η διατριβή με τη διερεύνηση των επιδράσεων συστημάτων συγκομιδής ξύλου στο δασικό τάπητα, το επιφανειακό έδαφος και το υδατικό ισοζύγιο ενός δασικού οικοσυστήματος πλατυφύλλου δρυός(quercus conferta) στο Ταξιάρχη Χαλκιδικής. Οι επιλεγμένες επιφάνειες τοπογραφήθηκαν και υψομετρήθηκαν και παχυμετρήθηκαν τα δέντρα σ'αυτές. Υπολογίστηκε το 50% της κυκλικής τους επιφάνειας και προσημάνθηκαν. Οι κύριοι χειρσιμοί που εφαρμόστηακν είναι : μάρτυρας, αραίωση 50% κ. επιφ. και αποψιλωτική υλοτομία. Ερευνήθηκε η μεταβολή του βάρους του δασικού τάπητα, του pH, του C(%) και N(%). Οι υδρονομικοί παράγοντες υπολογίστηκαν με τη μέθοδο του υδατικού ισοζυγίου και μετρήσεις υπαίθρου σε ορύγματα. Κύριο αίτιο των μεταβολών που καταγράφτηκαν είναι η αλλαγή του βαθμού συγκόλυσης. Οι μεταβολές του δασικού τάπητα και του επιφανειακού εδάφους δύο έτη για τη συγκομιδή του ξύλου βρέθηκαν γενικά μικρές. Μειώθηκε η οργανική ουσία του Αο ορίζοντα αυξήθηκε το pH και το οργ C κυρίως στο χειρισμό της αποψίλωσης. Δεν παρατηρήθηκε διάβρωση ή επιφανειακή απορροή. Αυξανόμενου του ύψους κατακρημνισμάτων και μειωμένης της υδατοσυγκράτησης, βελτιώνονται σημαντικά οι συνθήκες υγρασίας και ανάπτυξης των δρυοδασών και αυξάνει η ενδορροή και η διήθηση. Σε περιοχές με έντονα χωροχρονικά προβλήματα λειψυδρίας και ισχυρή δασοκάλυψη, η ορθολογική επέμβαση στη δομή, τη σύνθεση και την πυκνότητα των δασοσυστάδων μπορεί να εξοικονομήσει πολύτιμους υδατικούς πόρους
description: The subject deals with the investigation of effects of systems of harvest of timber in the forest floor, the surface soil and water balancw of forestal ecosystem broadleaved oak(Quercus Conferta) in Taxiarhis Chalkidiki. We create a map of the selected surfaces, measure the size of trees and calculate the 50% of circular surface. Then we select trees for harvest. The main managements that we applied are : witness thinning(selevtive logging) of 50% of their circular surface and clearcutting we searched the change of weight of forest floor, pH, C(%), N(%). Hydrological factors were calculated with the method of water balance and with measurements in ditches in the field. Main reason of changes that were recorded is the degree of harvest. The changes of forest carpet and surface soil two years after, wards. The harvest of timber were found generally small. There was decrease of the organic matter of Ao horizon, uncrease of pH and organic C mainly in clearcutting cite. There was no erosion of surface run off. While increasing the hight of rain there is considerable improvement of moisture conditions in oak forests and also increase of subterienial run off. In regions with intense problems of water shortage and thick forests, the rational intervention in the structure, composition and density of forests can economise presious water resources
Space Representation of Stochastic Processes with Delay
Creators: name: Dahmen, Silvio R.
name: Hinrichsen, Haye
name: Kinzel, Wolfgang
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show that a time series $x_t$ evolving by a non-local update rule $x_t = f (x_{t-n},x_{t-k})$ with two different delays $k
description: 6 pages, 8 figures
Athermal Shear-Transformation-Zone Theory of Amorphous Plastic Deformation II: Analysis of Simulated Amorphous Silicon
Creators: name: Bouchbinder, Eran
name: Langer, J. S.
name: Procaccia, Itamar
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In the preceding paper, we developed an athermal shear-transformation-zone (STZ) theory of amorphous plasticity. Here we use this theory in an analysis of numerical simulations of plasticity in amorphous silicon by Demkowicz and Argon (DA). In addition to bulk mechanical properties, those authors observed internal features of their deforming system that challenge our theory in important ways. We propose a quasithermodynamic interpretation of their observations in which the effective disorder temperature, generated by mechanical deformation well below the glass temperature, governs the behavior of other state variables that fall in and out of equilibrium with it. Our analysis points to a limitation of either the step-strain procedure used by DA in their simulations, or the STZ theory in its ability to describe rapid transients in stress-strain curves, or perhaps to both. Once we allow for this limitation, we are able to bring our theoretical predictions into accurate agreement with the simulations.
description: 10 pages, 7 figures, second of a two-part series. Reorganized paper with no substantial changes in content
The contribution of star formation and merging to stellar mass buildup in galaxies
Creators: name: Drory, Niv
name: Alvarez, Marcelo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a formalism to infer the presence of merging by comparing the time derivative of the observed galaxy stellar mass function (MF) to the change of the MF expected from the star formation rate (SFR) in galaxies as a function of mass and time. We present the SFR in as a function of stellar mass and time spanning 9=3 the average SFR, is a power law of stellar mass (SFR~M^0.6). The average SFR in the most massive objects at this redshift is 100-500 Msun/yr. At z~3, the SFR starts to drop at the high mass end. As z decreases further, the SFR drops at progressively lower masses (downsizing), dropping most rapidly for high mass (logM>11) galaxies. The mass at which the SFR starts to deviate from the power-law form (break mass) progresses smoothly from logM~13 at z~5 to logM~10.9 at z~0.5. The break mass evolves with redshift as M(z)=2.7x10^10 (1+z)^2.1. We directly observe a relationship between SFH and mass. More massive galaxies have steeper and earlier onsets of SF, their SFR peaks earlier and higher, and the following decay has a shorter e-folding time. The SFR observed in high mass galaxies at z~4 is sufficient to explain their rapid increase in number density. Within large uncertainties, at most 0.8 major mergers per Gyr are consistent with the high-z data, yet enough to transform most high mass objects into ellipticals contemporaneously with their major star formation episode. In contrast, at z<1.5 and at logM>11, mergers contribute 0.1-0.2 Gyr^-1 to the relative increase in number density (~1 major merger per massive object at 1.5>z>0). At 10
description: Accepted for publication in ApJ
Ενδοκυτταρικοί μηχανισμοί μεταγωγής μέσω των συζευγμένων με G πρωτεϊνες υποδοχέων στην καρδιά αρουραίου
Creators: name: Μάρκου, Θωμαϊς Ε.
Publisher: name: Aristotle University of Thessaloniki
Year: 2003
Subjects: Υποδοχείς συζευγμένοι με G πρωτεϊνες
Κινάσες
G protein coupled receptors
Kinase

description: Σκοπός της παρούσας μελέτης ήταν η διερεύνηση των σηματοδοτικών οδών που οδηγούν στην ενεργοποίηση των MARKs(Mitogen activated protein kinases) από τους αγωνιστές των συζευγμένων με G πρωτεϊνες υποδοχέων στα καρδιακά μυοκύτταρα ενήλικου αρουραίου. Διαπιστώθηκε ότι η φαινυλεφρίνη και η ευδοθηλίκη επάγουν την ενργοποίηση των ERK1/2 και p38 MAPK, ενώ δεν αυξάνουν σημαντικά τη φωσφορυλίωση των JNK1/2. H MSK1(Mitogen and stress activated kinase 1) είναι μια κινάση που αναγνωρίστηκε πρόσφατα σε διάφορους κυτταρικούς τύπους και θεωρείται ότι είναι υπόστρωμα των MAPKs. Στα πλαίσια της παρούσης μελέτης αποδείχτηκε ότι η MSK1 εκφράζεται στα καρδιακά μυοκύτταρα και ενεργοποιείται από τη φαινυλεφρίνη και την ενδοθηλίνη, γεγονός που προυποθέτει τη συντονισμένη δράση των ERK1/2 και p38. H MSK1 θεωρείται ότι συμμετέχει στη ρύθμιση της μεταγγραφής και ένα πιθανό υπόστρωμα της είναι ο μεταγραφικός παράγοντας GREB. Στο συγκεκριμένο πειραματικό μοντέλο, η φαινυλεφρίνη επαγει τη φωσφορυλίωση του CREB με τη διαμεσολάβηση των α1-και β-αδρενεργικών υποδοχέων, οι οποίοι ενεργοποιούν τις οδούς MAPKs/MSK1 και cAMP/PKA αντίστοιχα. Επιπλέον, η διέγερση των πουρινεργικών υποδοχέων κινητοποιεί τις οδούς των MAPKs και την MSK1, γεγονός που σχετίζεται με την ενεργοποίηση της φωσφολιπάσης Α2
description: The purpose of this study was to investigate the pathways leading to MAPK(mitogen activated protein kinase) activation in response to GPCR(G-protein coupled receptors) agonists in adult rat ventricular myocytes. Phenylephrine and endothelin-1 induced activation of ERK1/2 and p38MAPK whereas JNK1/2 was modest under these conditions. MSK1(mitogen and stress activated kinase 1) is a new MAPK target protein that is present in various cell types. We demonstrate that MSK1 is present in adult rat cardiomyocytes and it is activated in response to phenylephrine and endothelin-1. MSK1 activation requires the simultaneous activation of both p38 MAPK and ERK1/2 pathways. Furthermore, we provide the first evidence that phenylephrine promotes phosphorylation of the trancription factor GREB by activation of MARKs/MSK1 and CAMP/PKA signaling pathways downstream of a1-and b-adrenergie receptors. In additional experiments purinergic stimulation induced phosphorylation of MAPKs and MSK1 pathways with PLA2(phospholipase A2) being a possible downstream target
Courant bracket twisted both by a 2-form $B$ and by a bi-vector $θ$
Creators: name: Davidović, Lj.
name: Ivanišević, I.
name: Sazdović, B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We obtain the Courant bracket twisted simultaneously by a 2-form $B$ and a bi-vector $θ$ by calculating the Poisson bracket algebra of the symmetry generator in the basis obtained acting with the relevant twisting matrix. It is the extension of the Courant bracket that contains well known Schouten-Nijenhuis and Koszul bracket, as well as some new star brackets. We give interpretation to the star brackets as projections on isotropic subspaces.
title: Parole de femmes migrantes et/ou allophones concernant leur expérience périnatale en Suisse
title: Parole de femmes migrantes et/ou allophones concernant leur expérience périnatale en Suisse
titleType: AlternativeTitle
Creators: name: Ferec, Eva
name: Galvez, Mélodie
Publisher: name: Unknown
Year: 0
Subjects: subject: migration
subject: expérience
subject: périnatalité
subject: suisse
subject: déterminants sociaux
subject: sage-femme
subject: hesav TB SF

description: Objectif : Explorer le vécu des femmes migrantes et/ou allophones vivant en Suisse concernant leur expérience périnatale. Méthode : Des entretiens semi-directifs ont été conduits par l’équipe de recherche « Mi-TIC » auprès de femmes migrantes et/ou allophones vivant en Suisse, en collaboration avec des interprètes. Les chercheuses de l’étude « Mi-TIC » ont intégré à leur grille d’entretien deux questions axées sur l’expérience avec le système de santé des mères dites migrantes et/ou allophones pendant la période périnatale. Ces entretiens ont été enregistrés puis retranscrits par l’équipe de recherche. Nous avons eu accès aux données concernant les réponses des femmes ciblées à nos questions. A l’aide du logiciel MAXQDA®, nous avons catégorisé par thèmes et sous thèmes le contenu des données puis mis en lien avec de la littérature. Résultat : 11 extraits d’entretiens nous ont été transmis. Ce travail fait ressortir différents éléments qui interviennent dans le vécu des (futures) mères issues de la migration en Suisse. Les circonstances et leur environnement de vie, l’interaction avec le système de santé nouveau et peu connu et la relation avec le personnel soignant. Conclusion : L’élément principal qui ressort de ce travail est que certains déterminants sociaux de santé ont un impact direct sur l’expérience périnatale des (futures) mères migrantes et/ou allophones. A notre sens il semble nécessaire d’identifier précocement et prendre en compte les différents déterminants sociaux de la santé qui entourent les femmes afin de pouvoir agir dès le début du suivi si possible ou à chaque opportunité rencontrée par la sage-femme.
Additional file 1 of Silenced lncRNA DDX11-AS1 or up-regulated microRNA-34a-3p inhibits malignant phenotypes of hepatocellular carcinoma cells via suppression of TRAF5
Creators: name: Ding, Gangqiang
name: Zeng, Yanli
name: Yang, Dongqiang
name: Zhang, Can
name: Mao, Chongshan
name: Xiao, Erhui
name: Kang, Yi
name: Shang, Jia
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 1: Figure S1. The effect of DDX11-AS1/miR-34a-3p/TRAF5 on the malignant phenotype of xenografts. A–D. RT-qPCR detection of Ki67 and Caspase-3 mRNA levels in tumor tissues. The measurement data were expressed as mean ± standard deviation. The measurement data were expressed as mean ± standard deviation. t test was used for comparison between two groups, One-way ANOVA for comparison among multiple groups, and Tukey's post hoc test for pairwise comparison. ^ vs the sh-NC group, P < 0.05; # vs the mimic NC group, P < 0.05; & vs the pcDDX11-AS1 + mimic NC group, P < 0.05; + vs the pcDDX11-AS1 + sh-NC group, P < 0.05.
Comparative analysis of non-perturbative effects in B -> X_u l anti-nu_l decays
Creators: name: Kniehl, B. A.
name: Kramer, G.
name: Yang, J. -F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In order to extract the Cabibbo-Kobayashi-Maskawa matrix element |V_{ub}| from B -> X_u l anti-nu_l decays, the overwhelming background from B -> X_c l anti-nu_l decays must be reduced by appropriate acceptance cuts. We study the non-perturbative effects due to the motion of the b quark inside the B meson on the phenomenologically relevant decay distributions of B -> X_u l anti-nu_l in the presence of such cuts in a comparative analysis based on shape functions and the parton model in the light-cone limit. Comparisons with recent data from the CLEO, BABAR, and BELLE collaborations favor the shape-function approach.
description: 27 pages, 11 figures
Amtliche Mitteilungen der Technischen Universität Dortmund Nr. 6/2021
Creators: name: (:Unkn) Unknown
Publisher: name: Technische Universität Dortmund
Year: 2021
Subjects: subject: 080

description: 7. Ordnung zur Änderung der GRUNDORDNUNG der Technischen Universität Dortmund vom 03.12.2020
description: Handreichung zu den Regeln guter wissenschaftlicher Praxis an der TU Dortmund (Stand: 20.07.2020)
description: Amtliche Mitteilungen der Technischen Universität Dortmund;2021, 6
On homothetic Killing vectors in stationary axisymmetric vacuum spacetimes
Creators: name: Sherif, Abbas M.
name: Dunsby, Peter K. S.
name: Goswami, Rituparno
name: Maharaj, Sunil D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we consider homothetic Killing vectors in the class of stationary axisymmetric vacuum (SAV) spacetimes, where the components of the vectors are functions of the time and radial coordinates. In this case the component of any homothetic Killing vector along the $z$ direction must be constant. Firstly, it is shown that either the component along the radial direction is constant or we have the proportionality $g_{ϕϕ}\propto g_{ρρ}$, where $g_{ϕϕ}>0$. In both cases, complete analyses are carried out and the general forms of the homothetic Killing vectors are determined. The associated conformal factors are also obtained. The case of vanishing twist in the metric, i.e., $ω= 0$ is considered and the complete forms of the homothetic Killing vectors are determined, as well as the associated conformal factors.
description: 24 pages
Investigation of pulsed laser induced dewetting in nanoscopic metal films
Creators: name: Trice, Justin
name: Thomas, Dennis
name: Favazza, Christopher
name: Sureshkumar, Radhakrishna
name: Kalyanaraman, Ramki
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Hydrodynamic pattern formation (PF) and dewetting resulting from pulsed laser induced melting of nanoscopic metal films have been used to create spatially ordered metal nanoparticle arrays with monomodal size distribution on SiO_{\text{2}}/Si substrates. PF was investigated for film thickness h\leq7 nm < laser absorption depth \sim11 nm and different sets of laser parameters, including energy density E and the irradiation time, as measured by the number of pulses n. PF was only observed to occur for E\geq E_{m}, where E_{m} denotes the h-dependent threshold energy required to melt the film. Even at such small length scales, theoretical predictions for E_{m} obtained from a continuum-level lumped parameter heat transfer model for the film temperature, coupled with the 1-D transient heat equation for the substrate phase, were consistent with experimental observations provided that the thickness dependence of the reflectivity of the metal-substrate bilayer was incorporated into the analysis. The spacing between the nanoparticles and the particle diameter were found to increase as h^{2} and h^{5/3} respectively, which is consistent with the predictions of the thin film hydrodynamic (TFH) dewetting theory. These results suggest that fast thermal processing can lead to novel pattern formation, including quenching of a wide range of length scales and morphologies.
description: 36 pages, 11 figures, 1 table
Hierarchical black hole mergers in young, globular and nuclear star clusters: the effect of metallicity, spin and cluster properties
Creators: name: Mapelli, Michela
name: Dall'Amico, Marco
name: Bouffanais, Yann
name: Giacobbo, Nicola
name: Sedda, Manuel Arca
name: Artale, M. Celeste
name: Ballone, Alessandro
name: Di Carlo, Ugo N.
name: Iorio, Giuliano
name: Santoliquido, Filippo
name: Torniamenti, Stefano
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We explore hierarchical black hole (BH) mergers in nuclear star clusters (NSCs), globular clusters (GCs) and young star clusters (YSCs), accounting for both original and dynamically assembled binary BHs (BBHs). We find that the median mass of both first- and nth-generation dynamical mergers is larger in GCs and YSCs with respect to NSCs, because the lighter BHs are ejected by supernova kicks from the lower-mass clusters. Also, first- and nth-generation BH masses are strongly affected by the metallicity of the progenitor stars: the median mass of the primary BH of a nth-generation merger is $\sim{}24-38$ M$_\odot$ ($\sim{}9-15$ M$_\odot$) in metal-poor (metal-rich) NSCs. The maximum BH mass mainly depends on the escape velocity: BHs with mass up to several thousand M$_\odot$ form in NSCs, while YSCs and GCs host BHs with mass up to several hundred M$_\odot$. Furthermore, we calculate the fraction of mergers with at least one component in the pair-instability mass gap ($f_{\rm PI}$) and in the intermediate-mass BH regime ($f_{\rm IMBH}$). In the fiducial model for dynamical BBHs with metallicity $Z=0.002$, we find $f_{\rm PI}\approx{}0.05$, $0.02$ and $0.007$ ($f_{\rm IMBH}\approx{}0.01$, $0.002$ and $0.001$) in NSCs, GCs and YSCs, respectively. Both $f_{\rm PI}$ and $f_{\rm IMBH}$ drop by at least one order of magnitude at solar metallicity. Finally, we investigate the formation of GW190521 by assuming that it is either a nearly equal-mass BBH or an intermediate-mass ratio inspiral.
description: 20 pages, 13 figures, accepted for publication in MNRAS
GPI 2.0: Exploring The Impact of Different Readout Modes on the Wavefront Sensor's EMCCD
Creators: name: Ó, Clarissa R. Do
name: Perera, Saavidra
name: Maire, Jérôme
name: Nguyen, Jayke S.
name: Chambouleyron, Vincent
name: Konopacky, Quinn M.
name: Chilcote, Jeffrey
name: Fitzsimmons, Joeleff
name: Hamper, Randall
name: Kerley, Dan
name: Macintosh, Bruce
name: Marois, Christian
name: Rantakyrö, Fredrik
name: Savranksy, Dmitry
name: Veran, Jean-Pierre
name: Agapito, Guido
name: Ammons, S. Mark
name: Bonaglia, Marco
name: Boucher, Marc-Andre
name: Dunn, Jennifer
name: Esposito, Simone
name: Filion, Guillaume
name: Landry, Jean Thomas
name: Lardiere, Olivier
name: Li, Duan
name: Madurowicz, Alex
name: Peng, Dillon
name: Poyneer, Lisa
name: Spalding, Eckhart
Publisher: name: arXiv
Year: 2024
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Gemini Planet Imager (GPI) is a high contrast imaging instrument that aims to detect and characterize extrasolar planets. GPI is being upgraded to GPI 2.0, with several subsystems receiving a re-design to improve its contrast. To enable observations on fainter targets and increase performance on brighter ones, one of the upgrades is to the adaptive optics system. The current Shack-Hartmann wavefront sensor (WFS) is being replaced by a pyramid WFS with an low-noise electron multiplying CCD (EMCCD). EMCCDs are detectors capable of counting single photon events at high speed and high sensitivity. In this work, we characterize the performance of the HNü 240 EMCCD from Nüvü Cameras, which was custom-built for GPI 2.0. Through our performance evaluation we found that the operating mode of the camera had to be changed from inverted-mode (IMO) to non-inverted mode (NIMO) in order to improve charge diffusion features found in the detector's images. Here, we characterize the EMCCD's noise contributors (readout noise, clock-induced charges, dark current) and linearity tests (EM gain, exposure time) before and after the switch to NIMO.
description: Proceeding of the SPIE Astronomical Telescopes+Instrumentation. 14 pages, 15 figures
Η ελληνική παλιγγενεσία και ο αντίκτυπός της στη λογοτεχνία της Ιταλίας κατά τον 19ο αιώνα
Creators: name: Τσόλκας, Ιωάννης Δημ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2004
Subjects: Ελληνική Παλιγγενεσία
Ιταλική Παλιγγενεσία
Risorgimento Greco
Letteratura Italiana
Italian national-liberation struggle

description: Η συγκρότηση του εθνικού κράτους στην Ελληνική και Ιταλική χερσόνησο, η σημαντική αμφίδρομη πορεία πολιτιστικών και πολιτικών ρευμάτων, το πρόβλημα της εθνικής απελευθέρωσης και χειραφέτησης του Ελληνικού και του Ιταλικού λαού αποδεικνύονται συνεχώς μέσα από τις πηγές και το υλικό που βρίσκει ο ερευνητής. Η μελέτη αυτή εξετάζοντας τις ρίζες, τα κίνητρα καθώς και τους στόχους των φιλελληνικών έργων της Ιταλικής Λογοτεχνίας σε ένα χρονικό διάστημα περίπου ενός αιώνα(19ος), εστιάζει στο πόσο σημαντική ήταν αυτή η λογοτεχνική παραγωγή των ιταλών λογίων. Ολοι σχεδόν οι μεγάλοι διανοητές και λογοτέχνες, όπως και άλλοι λιγότερο καταξιωμένοι, εμπνεύσθηκαν, συνέθεσαν και έγραψαν για την Ελλάδα. Ο Ιταλικός Φιλελληνισμός είναι διαφορετικός από τους άλλους των υπολοίπων ευρωπαϊκών χωρών. Στην Ιταλία ο εθνικο-απελευθερωτικός αγώνας των Ελλήνων είχε σημαντικό αντίκτυπο λόγω της πολιτικής κατάστασης. Γιατί αν στην Ελλάδα ο τύραννος ήταν Τούρκος, στην Ιταλία ήταν Αυστριακός. Για τους Ιταλούς ο αγώνας των Ελλήνων δεν ήταν μόδα και οίστρος αλλά πατριωτική ανάγκη
description: The formation of a national state in the Greek and Italian peninsula, the significant reciprocal routes of cultural and political streams and the problem of the national liberation and emancipation of Greek and Italian people are constantly established by the the sources and material found by the researcher. This study, marks the value of the philhellenistic Italian Literature, examining the sources, motives and aims of relevant writings, throughout a period of nearly a century(the 19th). Almost all great intellectuals and scholars, as well as those less celebrated, have been inspired by and have composed or written about Greece. However, philhellenism in Italy is different from revelant trends in the rest of Europe. In Italy, the impact of the national-liberation struggle of the Greeks was significant due to the relevancy of the political circumstances : if in Greece the oppressor was the Turk, in Italy was the Austrian. For the Italians, the struggle of the Greeks was not a trend or inspiration, but a necessity
Evaluation de Techniques de Traitement des Refusés pour l'Octroi de Crédit
Creators: name: Viennet, Emmanuel
name: Soulié, Françoise Fogelman
name: Rognier, Benoit
Publisher: name: arXiv
Year: 2006
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We present the problem of "Reject Inference" for credit acceptance. Because of the current legal framework (Basel II), credit institutions need to industrialize their processes for credit acceptance, including Reject Inference. We present here a methodology to compare various techniques of Reject Inference and show that it is necessary, in the absence of real theoretical results, to be able to produce and compare models adapted to available data (selection of "best" model conditionnaly on data). We describe some simulations run on a small data set to illustrate the approach and some strategies for choosing the control group, which is the only valid approach to Reject Inference.
Exploring Benzyl Alcohol Derivatives and Related Compounds in the Cleaning of Oil Paintings
Creators: name: Liu, Chun
name: Alvarez-Martin, Alba
name: Keune, Katrien
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology

description: This study examines five benzyl alcohol derivatives and three chemically similar compounds and compares them against benzyl alcohol in gelled emulsions for the removal of overpaint during cleaning of oil paintings. Comparative cleaning tests using xanthan gels, Pemulen® TR-2 gels, and neat solvent were made on overpaint on fragments of a seventeenth-century test painting. This approach demonstrated that molecular changes to a benzyl alcohol core resulted in enhanced control during the cleaning process. In some cases a benzyl alcohol derivative enabled selective removal of non-original material, when benzyl alcohol appeared to affect the original paint. Select derivatives were also tested in an area of overpaint on a sixteenth-century oil on panel painting by Jan van Scorel in the Rijksmuseum Collection through modifying the chemical activity of benzyl alcohol. Finally, two GC-MS-based methods were used to monitor benzyl alcohol retention and possible oxidation in paint layers post-treatment.
Secoya Field Materials
Creators: name: Cabrera Sandoval, Marcela
name: Cabrera Sandoval, Marita
name: Chota Macanilla, Román
name: Chota Vílchez, Edith
name: Vásquez Leví, Gregorio
name: Vílchez Cabrera, Nelly
name: Vallejos, Rosa
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021

description: Sound recordings of texts and elicitation, with transcription and translation into Spanish and English. Texts include personal narratives, traditional stories, and stories created with cards; elicitation also includes structured elicitation using different types of stimuli.
Synchronising speech segments with musical beats in Mandarin and English singing
Creators: name: Zhang, Cong
name: Zhu, Jian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Sound (cs.SD)
subject: Computation and Language (cs.CL)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Generating synthesised singing voice with models trained on speech data has many advantages due to the models' flexibility and controllability. However, since the information about the temporal relationship between segments and beats are lacking in speech training data, the synthesised singing may sound off-beat at times. Therefore, the availability of the information on the temporal relationship between speech segments and music beats is crucial. The current study investigated the segment-beat synchronisation in singing data, with hypotheses formed based on the linguistics theories of P-centre and sonority hierarchy. A Mandarin corpus and an English corpus of professional singing data were manually annotated and analysed. The results showed that the presence of musical beats was more dependent on segment duration than sonority. However, the sonority hierarchy and the P-centre theory were highly related to the location of beats. Mandarin and English demonstrated cross-linguistic variations despite exhibiting common patterns.
description: To be published in the Proceeding of Interspeech 2021
$κ$-Deformed Statistics and Classical Fourmomentum Addition Law
Creators: name: Daszkiewicz, M.
name: Lukierski, J.
name: Woronowicz, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider $κ$-deformed relativistic symmetries described algebraically by modified Majid-Ruegg bicrossproduct basis and investigate the quantization of field oscillators for the $κ$-deformed free scalar fields on $κ$-Minkowski space. By modification of standard multiplication rule, we postulate the $κ$-deformed algebra of bosonic creation and annihilation operators. Our algebra permits to define the n-particle states with classical addition law for the fourmomenta in a way which is not in contradiction with the nonsymmetric quantum fourmomentum coproduct. We introduce $κ$-deformed Fock space generated by our $κ$-deformed oscillators which satisfy the standard algebraic relations with modified $κ$-multiplication rule. We show that such a $κ$-deformed bosonic Fock space is endowed with the conventional bosonic symmetry properties. Finally we discuss the role of $κ$-deformed algebra of oscillators in field-theoretic noncommutative framework.
description: LaTeX, 12 pages. V2: second part of chapter 4 changed, new references and comments added. V3: formula (14) corrected. Some additional explanations added. V4: further comments about algebraic structure are added
Mirror map for Fermat polynomial with non-abelian group of symmetries
Creators: name: Basalaev, Alexey
name: Ionov, Andrey
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Geometry (math.AG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study Landau-Ginzburg orbifolds $(f,G)$ with $f=x_1^n+\ldots+x_N^n$ and $G=S\ltimes G^d$, where $S\subseteq S_N$ and $G^d$ is either the maximal group of scalar symmetries of $f$ or the intersection of the maximal diagonal symmetries of $f$ with $\mathrm{SL}_N(\mathbb{C})$. We construct a mirror map between the corresponding phase spaces and prove that it is an isomorphism restricted to a certain subspace of the phase space when $n=N$ is a prime number. When $S$ satisfies the condition PC of Ebeling and Gusein-Zade this subspace coincides with the full space. We also show that two phase spaces are isomorphic for $n=N=5$.
description: typos fixed, journal version
Additional file 3 of Transcriptional regulation of proanthocyanidin biosynthesis pathway genes and transcription factors in Indigofera stachyodes Lindl. roots
Creators: name: Wang, Chongmin
name: Li, Jun
name: Zhou, Tao
name: Zhang, Yongping
name: Jin, Haijun
name: Liu, Xiaoqing
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3.