cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Deviation from one-dimensionality in stationary properties and collisional dynamics of matter-wave solitons
Creators: name: Khaykovich, Lev
name: Malomed, Boris A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: By means of analytical and numerical methods, we study how the residual three-dimensionality affects dynamics of solitons in an attractive Bose-Einstein condensate loaded into a cigar-shaped trap. Based on an effective 1D Gross-Pitaevskii equation that includes an additional quintic self-focusing term, generated by the tight transverse confinement, we find a family of exact one-soliton solutions and demonstrate stability of the entire family, despite the possibility of collapse in the 1D equation with the quintic self-focusing nonlinearity. Simulating collisions between two solitons in the same setting, we find a critical velocity, $V_{c}$, below which merger of identical in-phase solitons is observed. Dependence of $V_{c} $ on the strength of the transverse confinement and number of atoms in the solitons is predicted by means of the perturbation theory and investigated in direct simulations. Symmetry breaking in collisions of identical solitons with a nonzero phase difference is also shown in simulations and qualitatively explained by means of an analytical approximation.
description: 10 pages, 7 figures
Accelerating cosmologies from compactification with a twist
Creators: name: Neupane, Ishwaree P.
name: Wiltshire, David L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is demonstrated by explicit solutions of the (4+n)-dimensional vacuum Einstein equations that accelerating cosmologies in the Einstein conformal frame can be obtained by a time-dependent compactification of string/M-theory, even in the case that internal dimensions are Ricci-flat, provided one includes one or more geometric twists. Such acceleration is transient. When both compact hyperbolic internal spaces and geometric twists are included, however, the period of accelerated expansion may be made arbitrarily large.
description: 5 pages, 1 figure, RevTeX4
Additional file 1 of Anterior-posterior view by full-body digital X-ray to rule out severe spinal injuries in Polytraumatized patients
Creators: name: Häckel, Sonja
name: Hofmann, Elena
name: Anwander, Helen
name: Albers, Christoph E.
name: Basedow, Jasmin
name: Bigdon, Sebastian F.
name: Exadaktylos, Aristomenis K.
name: Keel, Marius J. B.
name: Dunn, Robert N.
name: Sithombo Maqungo
name: Benneker, Lorin M.
name: Held, Michael
name: Hoppe, Sven
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. Sample size calculation.
Multiple magnetic topological phases in bulk van der Waals crystal MnSb4Te7
Creators: name: Huan, Shuchun
name: Zhang, Shihao
name: Jiang, Zhicheng
name: Su, Hao
name: Wang, Hongyuan
name: Zhang, Xin
name: Yang, Yichen
name: Liu, Zhengtai
name: Wang, Xia
name: Yu, Na
name: Zou, Zhiqiang
name: Shen, Dawei
name: Liu, Jianpeng
name: Guo, Yanfeng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnetic van der Waals crystals MnBi2Te4/(Bi2Te3)n have drawn significant attention due to their rich topological properties and the tunability by external magnetic field. Although the MnBi2Te4/(Bi2Te3)n family have been intensively studied in the past few years, their close relatives, the MnSb2Te4/(Sb2Te3)n family, remain much less explored. In this work, combining magnetotransport measurements, angle-resolved photoemission spectroscopy, and first principles calculations, we find that MnSb4Te7, the n = 1 member of the MnSb2Te4/(Sb2Te3)n family, is a magnetic topological system with versatile topological phases which can be manipulated by both carrier doping and magnetic field. Our calculations unveil that its A-type antiferromagnetic (AFM) ground state stays in a Z_2 AFM topological insulator phase, which can be converted to an inversion-symmetry-protected axion insulator phase when in the ferromagnetic (FM) state. Moreover, when this system in the FM phase is slightly carrier doped on either the electron or hole side, it becomes a Weyl semimetal with multiple Weyl nodes in the highest valence bands and lowest conduction bands, which are manifested by the measured notable anomalous Hall effect. Our work thus introduces a new magnetic topological material with different topological phases which are highly tunable by carrier doping or magnetic field.
description: 28 pages including Supplementary Information,14 figures, 3 tables
SUPPLEMENTAL INFORMATION (SI) from The voice of few, the opinions of many: evidence of social biases in Twitter COVID-19 fake news sharing
Creators: name: Castioni, Piergiorgio
name: Andrighetto, Giulia
name: Gallotti, Riccardo
name: Polizzi, Eugenia
name: De Domenico, Manlio
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: 80201 Analysis of Algorithms and Complexity
subject: FOS: Computer and information sciences

description: Online platforms play a relevant role in the creation and diffusion of false or misleading news. Concerningly, the COVID-19 pandemic is shaping a communication network which reflects the emergence of collective attention towards a topic that rapidly gained universal interest. Here, we characterize the dynamics of this network on Twitter, analysing how unreliable content distributes among its users. We find that a minority of accounts is responsible for the majority of the misinformation circulating online, and identify two categories of users: a few active ones, playing the role of ‘creators’, and a majority playing the role of ‘consumers’. The relative proportion of these groups (≈14% creators—86% consumers) appears stable over time: consumers are mostly exposed to the opinions of a vocal minority of creators (which are the origin of 82% of fake content in our data), that could be mistakenly understood as of representative of the majority of users. The corresponding pressure from a perceived majority is identified as a potential driver of the ongoing COVID-19 infodemic.
THE OSTRACODS IN THE PALAEOENVIRONMENTAL INTERPRETATION OF THE LATE LANGHIAN - EARLY SERRAVALLIAN SECTION OF RAS IL-PELLEGRIN (MALTA)
Creators: name: BONADUCE, GIOACCHINO
name: BARRA, DIANA
Publisher: name: Università degli Studi di Milano
Year: 2002

description: The distribution of ostracods in the composed Langhian-Serravallian section of Ras il Pellegrin (Malta) has been studied quantitatively to define the evolution of both the assemblages and the palaeoenvironmental conditions. 99 samples have been examined at a stratigraphic distance of about 1 m. 78 species have been identified whose assemblages indicate an epibathyal environment and a sedimentation depth of 500-700 m. In particular, the almost continuous occurrence of the genus Oblitacythereis, which characterizes the water layer just above the psychrosphere, together with the absolute absence of the psychrospheric genus Agrenocythere confirm this interpretation. The sudden drop of both the simple diversity and abundance near the boundary "Upper Globigerina Limestone" - "Blue Clays" Formations, especially at the top of the succession, in our opinion may be due to the the decrease of dissolved bottom oxygen content as supported also by the Cytherellidae.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 2
Commutability between Semiclassical Limit and Adiabatic Limit
Creators: name: Wu, Biao
name: Liu, Jie
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the semiclassical limit and the adiabatic limit with a second-quantized two-mode model, which describes a many-boson interacting system. When its mean-field interaction is small, these two limits are commutable. However, when the interaction is strong and over a critical value, the two limits become incommutable. This change of commutability is associated with a topological change in the structure of the energy bands. These results reveal that nonlinear mean-field theories, such as Gross-Pitaevskii equations for Bose-Einstein condensates, can be invalid in the adiabatic limit.
description: 5 pages, 6 figures
EVOLUTION OF THE MEDITERRANEAN BASIN DURING THE LATE LANGHIAN - EARLY SERRAVALLIAN: AN INTEGRATED PALEOCEANOGRAPHIC APPROACH
Creators: name: BELLANCA, ADRIANA
name: SGARRELLA, FRANCA
name: NERI, RODOLFO
name: RUSSO, BIANCA
name: SPROVIERI, MARIO
name: BONADUCE, GIOACCHINO
name: ROCCA, DANIELA
Publisher: name: Università degli Studi di Milano
Year: 2002

description: An integrated (multidimensional) faunal and geochemical dataset has been generated by the study of a Middle Miocene sedimentary section (Ras il Pellegrin) outcropping in the Malta Island (central Mediterranean) and referred to the Late Langhian-Early Serravallian interval. Benthic foraminifers and ostracods suggest a paleobathymetry of about 500 m and  slightly under-oxygenated bottom conditions for the deposition of the sediments. Some bio-events, characterized by oligotypical assemblages (B. elongata group high percentage values) indicating stressed bottom conditions and very low oxygen content, seem related to suboxic episodes. Periods of enhanced surface productivity, indicated by increasing Ba concentrations and by d13C values measured in planktonic foraminifer, are recorded at the base and in the upper part of the succession and suggest the combination of upwelling events and enhanced continental runoff. In particular, the lower interval has been correlated with the C-isotope Monterey event. The upper interval, characterized by negative excursions in the benthic carbon isotope curve combined with the appearance of benthic species indicative of increasing preservation of organic carbon at the bottom of the basin, suggests a general reduced Mediterranean thermoaline circulation system during the Upper Langhian-Early Serravallian. These events are calibrated to the astrochronologic scale proposed for the same section by cyclostratigraphic analysis. Benthic assemblages and isotope evidence, combined with information from other coeval Mediterranean sediments (DSDP Site 375, Site 372; new data on Tremiti Islands), allow to interpret the large-scale thermoaline circulation in the Mediterranean basin during middle Miocene. Three discrete water masses have been identified: 1) surface Atlantic water inflowing into the Mediterranean; 2) intermediate outflowing Mediterranean water originated in the surficial eastern end; 3) atlantic (psychrospheric) bottom water identified in different areas of the basin.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 2
Celebration of place/place of celebration
Creators: name: Stuart, Richard Glenn
Publisher: name: University of British Columbia
Year: 2009

description: Edmonton is home to one of the world's largest continuous urban green spaces, the North Saskatchewan River Valley. Despite, deep incision, the river valley is used by a large number of citizens on a yearly basis especially in the summer. Due to the extreme climate, residents of Edmonton have had to make the most of the short summer months. As a result of this seasonal enthusiasm, Edmonton has also become host to many of the largest festivals in North America. The Edmonton Folk Music Festival is an annual event that has enjoyed solid international success. It present home in the River Valley is in Gallagher Park, a 56 acre park located on the South side of the river valley. The park is in many ways an excellent location for the festival, with a natural amphitheater and a sense of singularity in the Edmonton landscape. Successive sell-outs of the festival have left organizers looking for ways to enhance the festival experience for attendees, and helping the park to have a more valid year round identity within the context of the Edmonton River Valley. Thus my final design will be an attempt to mesh the aims of the festival wit the identity and desires of the park planners. The design process was started by first reviewing the context of the park in terms of it placement within The river valley, the parks immediate context, and then the uses placed upon the park by it's present user groups. From this information a master plan of design with detail was drafted in order to demonstrate how some of these issues could be translated into physical form. Physical enhancements involved the reconnection of the park to the greater River Valley system. With the reintroduction of green into the verge lands surrounding the park, connecting the Ravine to the River creating a sense of place to an areas that is presently void of identity. Improved edges to existing and the development of a cross axis that runs through the park unite disparate areas and makes connections beyond. The present Ski Lodge would be relocated to the base of the stairs at the junction of the two sides of the park and would function with year round flexibility. Experiential enhancements would also include the development of a landing or viewpoint at the top of the hill, where passers by could stop to enjoy the music and the views of the river valley. This design movement would also create a home for a large festival figure whose appearance would announce to commuters on the adjacent freeways that the festival had begun. A large retention pool that collects water from the site during wet times which serves as a year round water feature, cooling the site in the summer and functioning as a skating rink in the winter. The cumulative effect of all of these design moves would be to take Gallagher Park from a place of little perceived spatial variations to a place where a great variety of different areas existed. This would enable the Festival to refine the sense of place while simultaneously enhancing the overall city image of Gallagher Park
Additional file 1 of The effects of 14-week betaine supplementation on endocrine markers, body composition and anthropometrics in professional youth soccer players: a double blind, randomized, placebo-controlled trial
Creators: name: Nobari, Hadi
name: Kargarfard, Mehdi
name: Minasian, Vazgen
name: Cholewa, Jason M.
name: Pérez-Gómez, Jorge
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.
Lienemann-Perrin, C. / Weber, B. (Hrsg.), Theologie unterwegs
Creators: name: Vo
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 45 Nr. 4 (1996): Ökumenische Rundschau, Band 45, Heft 4
Additional file 1 of HINT1 neuropathy in Norway: clinical, genetic and functional profiling
Creators: name: Amor-Barris, Silvia
name: Høyer, Helle
name: Brauteset, Lin V.
name: Vriendt, Els De
name: Strand, Linda
name: Jordanova, Albena
name: Braathen, Geir J.
name: Peeters, Kristien
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Additional file 1. Gene panel. List of the 99 neuromuscular disease-associated genes included in the in-house designed panel.
ASTROCHRONOLOGICAL CALIBRATION OF THE UPPER SERRAVALLIAN/LOWER TORTONIAN SEDIMENTARY SEQUENCE AT TREMITI ISLANDS(ADRIATIC SEA, SOUTHERN ITALY)
Creators: name: LIRER, FABRIZIO
name: CARUSO, ANTONIO
name: MARIA FORESI, LUCA
name: SPROVIERI, MARIO
name: BONOMO, SERGIO
name: DI STEFANO, AGATA
name: DI STEFANO, ENRICO
name: MARIA IACCARINO, SILVIA
name: SALVATORINI, GIANFRANCO
name: SPROVIERI, RODOLFO
name: MAZZOLA, SALVATORE
Publisher: name: Università degli Studi di Milano
Year: 2002

description: A high resolution cyclostratigraphic study was carried out on a cyclicaly bedded succession of late Middle Miocene deep marine deposits from the Tremiti Islands, Adriatic sea (Italy). Astronomical calibration of the sedimentary cycles provides absolute ages for different calcareous plankton bioevents, widely used for intra Mediterranean correlation, in the interval between 11.12 and 12.60 Ma. The sedimentary record of the S. nicola composite section consists of an alternation of indurated, withish coloured, CaCo3 rich and grey less indurated, CaCo3 poor marly beds, at times replaced by red coloured CaCo3 poor marls. Results of direct correlation between the La 90 (1,1) solution of the insolation curve and the cyclic lithologic patterns occurring in the studied sections, combined with results of spectral methodologies applied on the climate sensitive data (CaCo3 and Globigerinoides) showed that the classic Milankovitch periodicity can be represented through the modulation forcing of the studied sedimentary records.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 2
Additional file 1 of Reasons for poor blood pressure control in Eastern Sub-Saharan Africa: looking into 4P’s (primary care, professional, patient, and public health policy) for improving blood pressure control: a scoping review
Creators: name: Sorato, Mende Mensa
name: Davari, Majid
name: Kebriaeezadeh, Abbas
name: Nizal Sarrafzadegan
name: Tamiru Shibru
name: Fatemi, Behzad
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Search strategy.
Modeling a Maunder Minimum
Creators: name: Brandenburg, A.
name: Spiegel, E. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We introduce on/off intermittency into a mean field dynamo model by imposing stochastic fluctuations in either the alpha effect or through the inclusion of a fluctuating electromotive force. Sufficiently strong small scale fluctuations with time scales of the order of 0.3-3 years can produce long term variations in the system on time scales of the order of hundreds of years. However, global suppression of magnetic activity in both hemispheres at once was not observed. The variation of the magnetic field does not resemble that of the sunspot number, but is more reminiscent of the 10 Be record. The interpretation of our results focuses attention on the connection between the level of magnetic activity and the sunspot number, an issue that must be elucidated if long term solar effects are to be well understood.
description: 8 pages, 6 figures, Astron. Nachr. (submitted)
Rough translation of file 034_B (collection LA 256)
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-130220-11: Rough translation (minute-by-minute) of 034_B-3 (tape 034, side B, third segment) from LA 256 (collection of recordings given to the Berkeley Language Center by Verdena), from 7:58 to 13:52. Due to re-numbering, segment 034_B-3 has been assigned to the CLA item number LA256.034, audio file LA256.034B.
Superconductivity to 262 kelvin via catalyzed hydrogenation of yttrium at high pressures
Creators: name: Snider, Elliot
name: Dasenbrock-Gammon, Nathan
name: McBride, Raymond
name: Wang, Xiaoyu
name: Meyers, Noah
name: Lawler, Keith V.
name: Zurek, Eva
name: Salamat, Ashkan
name: Dias, Ranga
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Room temperature superconductivity has been achieved under high pressure in an organically derived carbonaceous sulfur hydride with a critical superconducting transition temperature (Tc) of 288 kelvin. This development is part of a new class of dense, hydrogen rich materials with remarkably high critical temperatures. Metal superhydrides are a subclass of these materials that provide a different and potentially more promising route to very high Tc superconductivity. The most promising binary metal superhydrides contain alkaline or rare earth elements, and recent experimental observations of LaH10 have shown them capable of Tc s up to 250 to 260 kelvin. Predictions have shown yttrium superhydrides to be the most promising with an estimated Tc in excess of 300 kelvin for YH10. Here we report the synthesis of an yttrium superhydride that exhibits superconductivity at a critical temperature of 262 kelvin at 182 gigapascal. A palladium thin film assists the synthesis by protecting the sputtered yttrium from oxidation and promoting subsequent hydrogenation. Phonon mediated superconductivity is established by the observation of zero resistance, an isotope effect and the reduction of Tc under an external magnetic field. The upper critical magnetic field is 103 tesla at zero temperature. We suggest YH9 is the synthesized product based on comparison of the measured Raman spectra and Tc to calculated Raman results.
HIGH RESOLUTION CALCAREOUS PLANKTON BIOSTRATIGRAPHY OF THE SERRAVALLIAN SUCCESSION OF THE TREMITI ISLANDS (ADRIATIC SEA, ITALY)
Creators: name: M. FORESI, LUCA
name: BONOMO, SERGIO
name: CARUSO, ANTONIO
name: DI STEFANO, AGATA
name: DI STEFANO, ENRICO
name: M. IACCARINO, SILVIA
name: LIRER, FABRIZIO
name: MAZZEI, ROBERTO
name: SALVATORINI, GIANFRANCO
name: SPROVIERI, RODOLFO
Publisher: name: Università degli Studi di Milano
Year: 2002

description: The planktonic foraminifer and calcareous nannofossil content of two Middle Miocene sections of the Tremiti Islands (Southern Adriatic Sea) have been studied. The two sections are composed of marly limestones rich in calcareous plankton which show cyclic alternations of indurated (higher carbonate content) whitish and less indurated grey or reddish beds. The two sections represent a succession with a total thickness of 38 m. Samples have been collected at a mean spacing of 10-15 cm; qualitative analyses were performed on one sample per meter but quantitative analyses were made for each sample. The abundance fluctuations of several marker species proved to be a very useful tool to correlate the two sections. The astronomical calibration of the sedimentary cycles provided absolute ages for all the recognised calcareous plankton bioevents.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 2
Τα φεμινιστικά και τα γυναικεία έντυπα στην Ελλάδα (1975-2000), Θεματολογία, ιδεολογικοί προβληματισμοί και εκπαιδευτικές αντανακλάσεις
Creators: name: Βαγιωνάκη, Μαρία Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Γυναικείο κίνημα
Φεμινιστικά έντυπα
Εκπαίδευση
Ισότητα των φύλων
Μεταπολίτευση 1974
Ιστορία γυναικών
Feminist movement-women's struggle
Education
Gender's equality
Women's history

description: Τα γυναικεία και τα φεμινιστικά έντυπα της περιόδου που ερευνά η εργασία αποτελούν για τις γυναίκες της εποχής αυτής το προσφορότερο μέσον για την προσέγγιση των φεμινιστικών ιδεών που γνωρίζουν πρωτοφανή διάδοση μετά την πολιτική αλλάγή του 1974.Ερευνώνται κυρίως έντυπα του αυτόνομου φεμινιστικού χώρου και όχι αυτά των πολιτικών κομμάτων, συνολικά 12. Παράλληλα, εξετάζονται τα δημοσιευμένα άρθρα σε εκπαιδευτικά περιοδικά, τα οποία θίγουν ζητήματα ισότητας των φύλων στην εκπαίδευση και συγκρίνονται με τα αιτήματα και την προβληματική των φεμινιστικών εντύπων. Ζητούμενο, η διερεύνηση της αντανάκλασης των φεμινιστικών ιδεών στο χώρο της εκπαίδευσης
description: After the political change in Greece in 1974 the feministi press (journals, magazines, brochures etc) was the most usuual and suitable way for the greek women to approach, spread and propagate the feminist theories and politics. This research is upon the feminist press of autonomous feminist and "women's" movement, but not upon the different issues and editions of political parties(totaly 12). In parallel, the interest enlarges upon the educational editions of the period(1975-2000) as far as the relations between the publishe feminist theories and the claim of Gender Equality in education
The synthesis of the cosmic X-ray background in the Chandra and XMM-Newton era
Creators: name: Gilli, Roberto
name: Comastri, Andrea
name: Hasinger, Guenther
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a detailed and self-consistent modeling of the cosmic X-ray background (XRB) based on the most up-to-date X-ray luminosity functions (XLF) and evolution of Active Galactic Nuclei (AGN). The large body of observational results collected by soft (0.5-2 keV) and hard (2-10 keV) X-ray surveys are used to constrain at best the properties of the Compton-thin AGN population and its contribution to the XRB emission. The number ratio R between moderately obscured (Compton-thin) AGN and unobscured AGN is fixed by the comparison between the soft and hard XLFs, which suggests that R decreases from 4 at low luminosities to 1 at high luminosities. From the same comparison there is no clear evidence of an evolution of the obscured AGN fraction with redshift. The distribution of the absorbing column densities in obscured AGN is determined by matching the soft and hard source counts. A distribution rising towards larger column densities is able to reproduce the soft and hard AGN counts over about 6 dex in flux. The model also reproduces with excellent accuracy the fraction of obscured objects in AGN samples selected at different X-ray fluxes. The integrated emission of the Compton-thin AGN population is found to underestimate the XRB flux at about 30 keV and a population of heavily obscured -Compton-thick- AGN, as large as that of moderately obscured AGN, is required to fit the residual background emission. Remarkably, the fractions of Compton-thick AGN observed in the Chandra Deep Field South and in the first INTEGRAL and Swift catalogs of AGN selected above 10 keV are in excellent agreement with the model predictions. [abridged]
description: 21 pages, 19 figures, A&A in press. A version with full resolution figures is available at http://www.bo.astro.it/~gilli/paper.ps.gz
Some remarks about the centre of mass of two particles in spaces of constant curvature
Creators: name: García-Naranjo, Luis C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 70F05, 70A05

description: The concept of centre of mass of two particles in 2D spaces of constant Gaussian curvature is discussed by recalling the notion of "relativistic rule of lever" introduced by Galperin [Comm. Math. Phys. 154 (1993), 63--84] and comparing it with two other definitions of centre of mass that arise naturally on the treatment of the 2-body problem in spaces of constant curvature: firstly as the collision point of particles that are initially at rest, and secondly as the centre of rotation of steady rotation solutions. It is shown that if the particles have distinct masses then these definitions are equivalent only if the curvature vanishes and instead lead to three different notions of centre of mass in the general case.
description: 12 pages, 3 figures
BENTHIC FORAMINIFERA AS INDICATORS OF PALEOECOLOGICAL BOTTOM CONDITIONS IN THE SERRAVALLIAN TREMITI SECTIONS (EASTERN MEDITERRANEAN, ITALY)
Creators: name: RUSSO, BIANCA
name: SGARRELLA, FRANCA
name: GABOARDI, SANDRA
Publisher: name: Università degli Studi di Milano
Year: 2002

description: Quantitative analysis of  benthic foraminifera from the Serravallian S. Nicola composite section (Tremiti Islands, Adriatic Sea) and about 37 m thick, pointed out changes of bottom paleoecological conditions in this eastern Mediterranean area during the analyzed time interval. Benthic foraminiferal assemblages are typical of bathyal environment and indicate a constant paleobathymetry of about 1,000 m. Changes in benthic foraminiferal assemblages allowed us to identify five intervals,  which were calibrated on the astrochronological scale to reconstruct paleoecological evolution of bottom conditions. In particular starting from the base of the section the following different bottom conditions have been identified: 1) between about 12.62  to about 12.29 Ma high surface productivity, active bottom water circulation and, consequently, moderate bottom food supply; this paleoenvironment slightly changed  between about 12.49 and 12.29 Ma, where benthic assemblages testify unstable bottom conditions with periods of active circulation (relative abundance of Cibicidoides wuellerstorfi), alternated with periods of sluggish circulation  (peaks of Bulimina subulata group); 2) relatively oxygenated paleoenvironment together with low food supply between about  12.29 - 12.08 Ma; 3) increase of organic matter content (abundance of  U. peregrina-pygmaea), due to higher surface productivity and/or greater preservation of organic matter at bottom from 12.08 to 11.81 Ma; 4) relatively oxygenated conditions with low food supply from 11.81 to about 11.45 Ma; 5) similar conditions to those of the basal part (about 12.62  - 12.29 Ma) of the section from about 11.45 to 11.10 Ma, but with an increase of organic matter content. Finally, the comparison between the paleoecological reconstruction of the S. Nicola composite section and Ras il-Pellegrin (Malta) composite section (reported in this volume) in  the interval between about 12.6 and 12.2 Ma, pointed out very different extimated paleobatimetries, but similar paleoecological bottom conditions with evidence of relative high productivity.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 2
Το νοητικό πείραμα στη Φυσική. Η θεώρηση του James R. Brown και η κριτική του John D. Norton
Creators: name: Τσιαγκίρης, Διαμαντής Χρίστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Νοητικό πείραμα
Γνωσιακή αποτελεσματικότητα
Πλατωνικός ορθολογισμός
Επιχειρηματική άποψη
James R. Brown
John D. Norton
Thought experiment
Cognitive efficacy
Platonic rationalism
Argument view

description: Ενα είδος επιστημονικού συλλογισμού στο πεδίο της φυσικής που έχει προκαλέσει ζωηρές συζητήσεις μεταξύ φιλοσόφων της επιστήμης αλλά και φυσικών, ιδιαιτέρως τις τελευταίες δεκαετίες, είναι το Νοητικό Πείραμα. Το Νοητικό Πείραμα αποτελεί ένα ισχυρό εργαλείο της επιστημονικής σκέψης που έχει συμβάλει αποτελεσματικά στην έως τώρα ανάπτυξη της φυσικής. Δύο φιλόσοφοι της επιστήμης, οι οποίοι έχουν συντελέσει σημαντικά στην έρευνα που διεξάγεται πάνω σε γνωσιολογικά και οντολογικά θέματα που σχετίζονται με την χρήση του Νοητικού Πειράματος στη φυσική, είναι ο J.R. Brown και ο J.D. Norton. Ανάμεσα τους συντηρείται μια φιλική διαμάχη για τη δυνατότητα ή μη του ΝΠ να υπερβαίνει την εμπειρία. Η ρίζα αυτής της διαφωνίας έγκειται στις διαμετρικά αντίθετα απόψεις που εκφράζουν. Οι μεν απόψεις του J.R. Brown αντιπροσωπεύουν τον Πλατωνικό ορθολογισμό, οι δε απόψεις του J.D. Norton αντιπροσωπεύουν τον κλασικό εμπειρισμό. Αντικείμενο της παρούσας διπλωματικής εργασίας είναι η μελέτη και παρουσίαση της θεώρησης του J.R. Brown για τα Νοητικά Πειράματα και της κριτικής που ασκεί ο J.D. Norton στον J.R. Brown με βάση τη δική του "επιχειρηματική" άποψη για τα Νοητικά Πειράματα.
description: A type of scientific reasoning in the field of physics that has caused heated discussions between philosophers of science but also physicists, particularly the last decades, is the Thought Experiment. The Thought Experiment constitutes a powerful tool of scientific thought that has contributed effectively to the development of physics up until now. Two philosophers of science, which have contributed considerably to the research that is carried out on epistemological and ontological issues that are related to the use of the Thought Experiment in physics, are James R. Brown and John D. Norton. The two maintain a friendly controversy between themselves as to the possibility or not of the Thought Experiment to transcend experience. The root of this disagreement lies in the diametrically opposite views that they express. On the one hand J.R. Brown's views represent Platonic rationalism, on the other hand J.D. Norton's views represent classic empiricism. The object of the present thesis is the study and presentation of J.R. Brown's account of Thought Experiments and John D. Norton's criticism of James R. Brown, on the basis of his own "argument" view of Thought Experiments.
"THE COEXISTENCE OF SERVICE AUTOMATION AND HUMAN LABOR IN METRO MANILA IN THE FOOD AND BEVERAGE SECTOR OF TOURISM INDUSTRY".
Creators: name: Abrigo, Justine Mariella
name: Abrigo, Justine Mariella
Publisher: name: Zenodo
Year: 2023

description: “I hereby grant the GET International Research Journal a nonexclusive, worldwide, royalty-free license to reproduce, publish, and publicly distribute copies of this thesis/dissertation in whatever form subject to the provisions of applicable laws, the provisions of the IPR policy, and any contractual obligations.”

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2. To publish the work in the college/school/institute/department journal both in print and electronic or digital format and online; and

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Multiple-Association Supporting HTC/MTC in Limited-Backhaul Capacity Ultra-Dense Networks
Creators: name: Elbayoumi, Mohammed
name: Hamouda, Walaa
name: Youssef, Amr
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Coexistence of Human-Type Communications (HTCs) and Machine-Type Communications (MTCs) is inevitable. Ultra-Dense Networks (UDNs) will be efficacious in supporting both types of communications. In a UDN, a massive number of low-power and low-cost Small Cells (SCs) are deployed with density higher than that of the HTC users. In such a scenario, the backhaul capacities constitute an intrinsic bottleneck for the system. Hence, we propose a multiple association scheme where each HTC user associates to and activates multiple SCs to overcome the backhaul capacity constraints. In addition, having more active cells allows for more MTC devices to be supported by the network. Using tools from stochastic geometry, we formulate a novel mathematical framework investigating the performance of the limited-backhaul capacity UDN in terms of Area Spectral Efficiency (ASE) for both HTC and MTC and the density of supported MTC devices. Extensive simulations were conducted to verify the accuracy of the mathematical analysis under different system parameters. Results show the existence of an optimum number of SCs to which an HTC user may connect under backhaul capacity constraints. Besides, the proposed multiple association scheme significantly improves the performance of MTC in terms of both ASE and density of supported devices.
ActiveNet: A computer-vision based approach to determine lethargy
Creators: name: Gupta, Aitik
name: Agarwal, Aadit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences
subject: I.2.10; I.4.7; I.4.8; I.4.9; I.5.4

description: The outbreak of COVID-19 has forced everyone to stay indoors, fabricating a significant drop in physical activeness. Our work is constructed upon the idea to formulate a backbone mechanism, to detect levels of activeness in real-time, using a single monocular image of a target person. The scope can be generalized under many applications, be it in an interview, online classes, security surveillance, et cetera. We propose a Computer Vision based multi-stage approach, wherein the pose of a person is first detected, encoded with a novel approach, and then assessed by a classical machine learning algorithm to determine the level of activeness. An alerting system is wrapped around the approach to provide a solution to inhibit lethargy by sending notification alerts to individuals involved.
description: Accepted at The ACM India Joint International Conference on Data Science and Management of Data (CoDS-COMAD) 2021
Magnetometry with millimeter-scale anti-relaxation-coated alkali-metal vapor cells
Creators: name: Balabas, M. V.
name: Budker, D.
name: Kitching, J.
name: Schwindt, P. D. D.
name: Stalnaker, J. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Dynamic nonlinear magneto-optical-rotation signals with frequency- and amplitude-modulated laser light have been observed and investigated with a spherical glass cell of 3-mm diameter containing Cs metal with inner walls coated with paraffin. Intrinsic Zeeman relaxation rates of $γ/(2π)\approx 20 $Hz and lower have been observed. Favorable prospects of using millimeter-scale coated cells in portable magnetometers and secondary frequency references are discussed.
description: 7 pages, 9 figures
SHORT PALAEOECOLOGICAL NOTES ON THE MIDDLE SERRAVALLIAN-BASAL TORTONIAN OSTRACODS FROM THE TREMITI ISLANDS
Creators: name: DALL’ANTONIA, BARBARA
Publisher: name: Università degli Studi di Milano
Year: 2002

description: The paleoecological significance of the ostracod faunas  from the middle Serravallian-basal Tortonian of the Tremiti islands is briefly discussed. The fauna is typical  of the bathyal environment throughout the investigated interval. Compositional changes recorded in the assemblages, however, indicate that bottom water conditions varied. Within the middle Serravallian, ostracods point to the existence of a lower thermospheric environment with possible feeble psychrospheric influences. In the latest Serravallian-basal Tortonian, the start of a gradual shift towards upper thermospheric conditions is recognizable. The species Bradleya (?) saxolensis Russo, 1966 is herein redescribed and placed into the genus Agrenocythere Benson, 1972.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 2
ASTRONOMICAL CALIBRATION OF THE SERRAVALLIAN/TORTONIANCASE PELACANI SECTION (SICILY, ITALY)
Creators: name: CARUSO, ANTONIO
name: SPROVIERI, MARIO
name: BONANNO, ANGELO
name: SPROVIERI, RODOLFO
Publisher: name: Università degli Studi di Milano
Year: 2002

description: We performed a cyclostratigraphic study of a sedimentary sequence (Case Pelacani section) outcropping in the south-eastern margin of Sicily (Italy) and covering the Upper Serravallian/Lower Tortonian stratigraphic interval. Calcareous plankton biostratigraphic data reported in another paper proved that all the sequence of bio-events generally reported from just below and above the S/T boundary is present in the section. They allowed a detailed correlation with the Gibliscemi section.  Preliminary paleomagnetic data suggest that a secondary remagnetization  component prevents the recognition of the correct sequence of paleomagnetic chrons along the studied interval. The sedimentary record has been compared, on the basis of an integrated calcareous plankton biostratigraphy, with that of the Gibliscemi section. Cyclostratigraphic analysis of the lithological patterns recognized throughout the succession and the application of spectral methodologies to the abundance fluctuations of the planktonic foraminifer Globigerinoides quadrilobatus highlighted the presence in the signal of the classic Milankovitch frequencies (precession, obliquity and eccentricity). Correlation of the lithological patterns and of the different frequency bands extracted by numerical filtering from the faunal record with the same components modulating the insolation curve provided an astronomic calibration of the sedimentary record and, consequently, a precise age for all the calcareous plankton bioevents recognized throughout the studied interval.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 2
Κατανόηση και αναπαραγωγή αφηματικού γραπτού λόγου, σε παιδιά με προβλήματα μάθησης
Creators: name: Σταμάκου-Συρμακέζη, Αθανασίου Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Προβλήματα μάθησης
Αφηγηματικές δυσκολίες
Οργάνωση αφήγησης
Γλωσσική ανάπτυξη
Learning difficulties
Narrative difficulties
Narration technique
Language development

description: Λόγω της αδυναμίας τους ν' ανταποκριθούν στις απαιτήσεις των γνωστικών και γλωσσικών διαδικασιών, όπως είναι η κατανόηση και η γραφή, τα παιδιά με μαθησιακές δυσκολίες βρίσκονται σε δυσμενή θέση σε σχέση με τα υπόλοιπα παιδιά στο σχολικό περιβάλλον.Η παρούσα εργασία αποτελεί μια διερεύνηση και παρουσίαση της διαθέσιμης βιβλιογραφίας, σχετικά με τις έννοιες της «κατανόησης» και της «αφήγησης». Οι δύο αυτές έννοιες αναπτύσσονται σε σχέση με τις αναπτυξιακές διαταραχές του λόγου και τις μαθησιακές δυσκολίες παιδιών προσχολικής, σχολικής και εφηβικής ηλικίας, ώστε να εμπλουτίσει τις γνώσεις μας για περαιτέρω μελλοντικές ερευνητικές προσπάθειες. Η μέθοδος της αφήγησης των ιστοριών θεωρείται σήμερα το πιο κατάλληλο μέσο για το σχεδιασμό και την πραγματοποίηση πρώιμων παρεμβάσεων σε παιδιά με αναπτυξιακές διαταραχές του λόγου, καθώς προσφέρει ένα ευρύ πλαίσιο γλωσσικής γνωστικής παρέμβασης. Ένα πλαίσιο το οποίο θα επικεντρώνεται στα ενδιαφέροντα των παιδιών αυτής της ηλικίας και θα συνδέεται και με τις απαιτήσεις της σχολικής καθημερινότητας.Εκτός από το σχεδιασμό πρώιμων παρεμβάσεων στην προσχολική ηλικία, και οι εκπαιδευτικοί των άλλων βαθμίδων μπορούν να κινηθούν προς την ίδια κατεύθυνση, προκειμένου να διατηρήσουν υψηλές προσδοκίες για τις ακαδημαϊκές δεξιότητες στο γράψιμο παιδιών με μαθησιακές δυσκολίες
description: Due to their weakness respond to the demands of cognitive and linguistic procedures, such as "understanding" and "writing", children with learning difficulties find themselves in great disadvantage, in relation to the rest of the children in the school environment.The present study comprises a brief presentation and investigation of the available bibliography concerning the concepts notions of "understanding" and "narration". These two notions are developed in relation to the developmental speech disorders and learning difficulties of pre-school and school age, in order to enrich our knowledge for future research efforts. The method of story narration is considered today the most appropriate medium for the design and operation of early intervention programs for children with speech developmental disorders as it offers a wide framework for language and cognitive interventions focused on the interests of preschoolers and compatible to the demands of the daily school life. Besides the construction or early interventions in early childhood, teachers or primary and secondary education can also move toward the same direction in order to maintain high expectations concerning the academic skills in writing of children with learning difficulties.
Flashing a look at the stability of the uniform ferroelectric nematic phase
Creators: name: Kats, E. I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Recent discovery of the ferroelectric nematic phase N_F resurrects a question about stability of the uniform N_F state with respect to the formation of either standard for solid ferroelectrics domain structure, or often occurring in liquid crystals space modulation of the polarization vector P (and naturally coupled to P nematic director. In this work within Landau mean-field theory we investigate the linear stability of the minimal model admitting the conventional paraelectric nematic N and N_F phases. Our minimal model, (besides the standard terms of the expansion over P and director gradients) includes, also standard for liquid crystals, director flexoelectric coupling term f and often overlooked in the literature (although similar by its symmetry to the director flexoelectric coupling) the flexo-dipolar coupling. We find that in the easy-plane anisotropy case the uniform N_F state loses its stability with respect to one-dimensional or two-dimensional modulation. For non-zero f the 2D modulation threshold is always higher than its 1D counterpart. No any instability at all if one neglects the dipole-flexoelectric coupling. In the easy-axis case the both instability thresholds are the same, and the instability can occur even without flexo-dipolr coupling. We speculate that the phases with 1D or 2D modulations can be identified with discussed in the literature [see M.P.Rosseto, J.V.Selinger, Physical Review E, volume 101, page 052707 (2020)] single splay or double splay nematics.
description: 10 pages
Materne, Ulrich / Balders, Günter (Hrsg.), Erlebt in der DDR
Creators: name: Heidingsfeld, Uwe-Peter
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 45 Nr. 4 (1996): Ökumenische Rundschau, Band 45, Heft 4
Evidence for the super Tonks-Girardeau gas
Creators: name: Batchelor, M. T.
name: Bortz, M.
name: Guan, X. W.
name: Oelkers, N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We provide evidence in support of a recent proposal by Astrakharchik at al. for the existence of a super Tonks-Girardeau gas-like state in the attractive interaction regime of quasi-one-dimensional Bose gases. We show that the super Tonks-Giradeau gas-like state corresponds to a highly-excited Bethe state in the integrable interacting Bose gas for which the bosons acquire hard-core behaviour. The gas-like state properties vary smoothly throughout a wide range from strong repulsion to strong attraction. There is an additional stable gas-like phase in this regime in which the bosons form two-body bound states behaving like hard-core bosons.
description: 10 pages, 1 figure, 2 tables, additional text on the stability of the super T-G gas-like state