cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Survey for Spectroscopic Binaries Among Very Low-Mass Stars
Creators: name: Basri, Gibor
name: Reiners, Ansgar
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the results of a survey for radial velocity variability in a heterogeneous sample of very low-mass stars and brown dwarfs. One distinguishing characteristic of the survey is its timespan, which allows an overlap between spectroscopic binaries and those which can be found by high angular-resolution imaging. We are able to place a new constraint on the total binary fraction in these objects, which suggests that they are more likely the result of extending the same processes at work at higher masses into this mass range, rather than a distinct mode of formation. Our basic result is that there are $6 \pm 2$ out of 53, or $11^{+0.07}_{-0.04}$% spectroscopic binaries in the separation range 0-6 AU, nearly as many as resolved binaries. This leads to an estimate of an upper limit of $26 \pm 10$% for the binary fraction of VLM objects (it is an upper limit because of the possible overlap between the spectroscopic and resolved populations). A reasonable estimate for the very low-mass binary fraction is $20 - 25$%. We consider several possible separation and frequency distributions, including the same one as found for GK stars, a compressed version of that, a version of the compressed distribution truncated at 15 AU, and a theoretical distribution which considers the evaporation of small-N clusters. We conclude that the latter two bracket the observations, which may mean that these systems form with intrinsically smaller separations due to their smaller mass, and then are truncated due to their smaller binding energy. We do not find support for the ``ejection hypothesis'' as their dominant mode of formation, particularly in view of the similarity in the total binary fraction compared with slightly more massive stars, and the difficulty this mechanism has in producing numerous binary systems.
description: 36 pages, accepted for publication in AJ, abstract shortened for arXiv.org
Identification and characterization of small rnas and proteins expressed by the human parvovirus B19
Creators: name: St. Amand, Janet Lynn
Publisher: name: University of British Columbia
Year: 2009

description: The human pathogenic parvovirus B19 has a strict tissue tropism and will only replicate in a subset of erythroid progenitor cells. However, it is shown that COS-7 cells transfected with SV4O-B19 hybrid vectors express the major B19 RNAs and proteins. In addition, capsid proteins synthesized in these cells self-assemble into virus particles that by EM are morphologically very similar to native B19 virions. Cytoplasmic RNA from transfected COS-7 cells was used to prepare a cDNA library using a method which enriched the library for B19 cDNAs. A second cDNA library was prepared from B19 infected human bone marrow cells that had been isolated from a patient with a chronic myelogenous leukemia using PCR to amplify B19-specific cDNAs. The libraries were probed with a series of RNA probes derived from different regions of the B19 genome in pYT1O3 and selected cDNAs were sequenced and compared. Two size classes of small, abundant, polyadenylated RNAs were identified; the 700 and 800 nt size class of RNA is the product of transcriptional processing in the middle of the B19 genome downstream from an unusual polyadenylation signal, ATTAAA or AATAAC (map unit 49). These transcripts contain an ORF within their second exon which is the same reading frame used for the translation of the nonstructural proteins; however, there are no AUG translation initiation codons within this region of the ORF. The second most abundant size class of RNA in B19 infected cells are the 500 and 600 nt transcripts which are made from three exons and terminated at a normal polyadenylation signal (AATAAA) near the right hand end of the genome (map unit 97). A 94 aa ORF within the third exon is invariant in the two RNA species. [more abstract]
HI imaging of galaxies in X-ray bright groups
Creators: name: Sengupta, Chandreyee
name: Balasubramanyam, Ramesh
name: Dwarakanath, K. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Environment plays an important role in the evolution of the gas contents of galaxies. Gas deficiency of cluster spirals and the role of the hot intracluster medium (ICM) in stripping gas from these galaxies is a well studied subject. Loose groups with diffuse X-ray emmision from the intragroup medium (IGM) offer an intermediate environment between clusters and groups without a hot IGM. These X-ray bright groups have smaller velocity dispersion and lower temperature than clusters, but higher IGM density than loose groups without diffuse X-ray emission. A single dish comparative study of loose groups with and without diffuse X-ray emission from the IGM, showed that the galaxies in X-ray bright groups have lost more gas on average than the galaxies in non X-ray bright groups. In this paper we present GMRT HI observations of 13 galaxies from 4 X-ray bright groups: NGC5044, NGC720, NGC1550 and IC1459. The aim of this work is to study the morphology of HI in these galaxies and to see if the hot IGM has in any way affected their HI content or distribution. In addition to disturbed HI morphology, we find that most galaxies have shrunken HI disks compared to the field spirals. This indicates that IGM assisted stripping processes like ram pressure may have stripped gas from the outer edges of the galaxies.
description: Accepted in MNRAS
Ο Διευθυντής-Ηγέτης στη Σχολική Μονάδα, η πορεία προς την Ποιότητα
Creators: name: Περνετζή, Αικατερίνη Αργυρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Διευθυντής-Ηγέτης
Σχολική Μονάδα
Ποιότητα
School Leader
School Unit
Quality

description: Η παρούσα εργασία αποτελεί ένα εγχείρημα προσέγγισης των εννοιών της ηγεσίας και της ποιότητας στο χώρο των εκπαιδευτικών μονάδων. Σκοπός αυτής της εργασίας είναι η βαθύτερη κατανόηση της θέσης του ηγέτη-διευθυντή της σχολικής μονάδας και η επίτευξη της ποιότητας, καθώς και η σχέση ανάμεσά τους. Προκειμένου να καταστεί εφικτή η σύνδεση αυτή, δίνεται ιδιαίτερη βαρύτητα στην εννοιολογική αποσαφήνιση του όρου «ηγεσία», στα ηγετικά στυλ, στα χαρακτηριστικά που καταστούν το άτομο αποτελεσματικό ηγέτη, καθώς επίσης και τα κριτήρια με βάση τα οποία ορίζεται και επιτυγχάνεται η ποιότητα σε έναν εκπαιδευτικό οργανισμό. Για την αποτελεσματικότερη διεξαγωγή της έρευνας, εφαρμόστηκε η μελέτη περίπτωσης (case study) ως η πιο κατάλληλη για να απαντηθούν οι ερωτήσεις με θέμα τη ποιότητα της σχολικής μονάδας από τους εκπαιδευτικούς δευτεροβάθμιας εκπαίδευσης. Για την άντληση του δείγματος επιλέχθηκε το 2ο Γενικό Λύκειο Αλεξάνδρειας του νομού Ημαθίας έπειτα από κλήρωση. Με βάση τα πορίσματα της έρευνας ο εκπαιδευτικός οργανισμός παρουσιάζει δείγματα ποιότητας σε κάθε τομέα (ηγεσία, πολιτική και στρατηγικές, ανθρώπινο δυναμικό, διαχείριση πόρων, διαδικασίες, ικανοποίηση πελατών, ικανοποίηση εργαζόμενων, αποτελέσματα για το κοινωνικό σύνολο και αποτελέσματα της απόδοσης του οργανισμού) αποτυπώνοντας τη προθυμία της διεύθυνσης για αναβάθμιση και συνεργασία. Ωστόσο, η ανάγκη για βελτίωση των διαδικασιών είναι εμφανής.
description: This paper is an attempt to approach the concepts of leadership and quality in the area of educational units. The aim of this study is to gain a deeper understanding of the position of the school leader and manager and achieve quality as well as the relationship between them. In order to make this connection possible, particular emphasis is placed on the conceptual clarification of the term "leadership", the leadership styles, the characteristics that make the individual an effective leader, as well as the criteria on the basis of which quality is defined and achieved in an educator organization. For the more effective conduct of the survey, the case study was applied as the most appropriate to answer questions about the quality of the school unit by secondary school teachers. Alexandria’s 2nd Elementary Lyceum of the prefecture of Imathia was selected for the sampling of the sample after a draw. Based on the findings of the survey, the educational organization presents quality samples in each sector (leadership, policy and strategies, human resources, resource management, processes, customer satisfaction, employee satisfaction, results for the community and results of the organization's performance) capturing management's willingness to upgrade and co-operate. However, the need for improved procedures is obvious.
Kinetic theory for radiation interacting with sound waves in ultrarelativistic pair plasmas
Creators: name: Marklund, M.
name: Shukla, P. K.
name: Stenflo, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A kinetic theory for radiation interacting with sound waves in an ultrarelativistic electron-positron plasma is developed. It is shown that the effect of a spatial spectral broadening of the electromagnetic pulse is to introduce a reduction of the growth rates for the decay and modulational instabilities. Such spectral broadening could be due to a finite pulse coherence length, or through the use of random phase filters, and would stabilize the propagation of electromagnetic pulses.
description: 8 pages, 4 figures, to appear in Phys. Plasmas
Trading strategies in the Italian interbank market
Creators: name: Iori, Giulia
name: Reno', Roberto
name: De Masi, Giulia
name: Caldarelli, Guido
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: Using a data set which includes all transactions among banks in the Italian money market, we study their trading strategies and the dependence among them. We use the Fourier method to compute the variance-covariance matrix of trading strategies. Our results indicate that well defined patterns arise. Two main communities of banks, which can be coarsely identified as small and large banks, emerge.
description: 19 pages
Removal of surface plasmon polariton eigenmodes degeneracy
Creators: name: Ren, Xi-Feng
name: Guo, Guo-Ping
name: Zhang, Pei
name: Huang, Yun-Feng
name: Wang, Zhi-Wei
name: Guo, Guang-Can
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The effect of the tilt angle of metal film on the transmissivity of subwavelength holes in optically thick metal film is investigated. The transmission efficiency is found can be highly dependent on the tilt angle. It is also found that when the input photons are polarized not along the eigenmode directions of surface plasmon polariton, a birefringent phenomenon is observed when the array with periodic of subwavelength holes is tilted. Linear polarization states can be changed to elliptical polarization states and a phase can be added between two eigenmodes. The phase is changed with the tilt angle. A model based on surface plasmon polariton eigenmodes degeneracy is presented to explain these experimental results.
description: 7 pages, 5 figures
Circumstellar material in the Vega inner system revealed by CHARA/FLUOR
Creators: name: Absil, O.
name: di Folco, E.
name: Merand, A.
name: Augereau, J. -C.
name: Foresto, V. Coude du
name: Aufdenberg, J. P.
name: Kervella, P.
name: Ridgway, S. T.
name: Berger, D. H.
name: Brummelaar, T. A. ten
name: Sturmann, J.
name: Sturmann, L.
name: Turner, N. H.
name: McAlister, H. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Only a handful of debris disks have been imaged up to now. Due to the need for high dynamic range and high angular resolution, very little is known about the inner planetary region, where small amounts of warm dust are expected to be found. We investigate the close neighbourhood of Vega with the help of infrared stellar interferometry and estimate the integrated K-band flux originating from the central 8 AU of the debris disk. We performed precise visibility measurements at both short (~30 m) and long (~150 m) baselines with the FLUOR beam-combiner installed at the CHARA Array (Mt Wilson, California) in order to separately resolve the emissions from the extended debris disk (short baselines) and from the stellar photosphere (long baselines). After revising Vega's K-band angular diameter (3.202+/-0.005 mas), we show that a significant deficit in squared visibility (1.88+/-0.34%) is detected at short baselines with respect to the best-fit uniform disk stellar model. This deficit can be either attributed to the presence of a low-mass stellar companion around Vega, or as the signature of the thermal and scattered emissions from the debris disk. We show that the presence of a close companion is highly unlikely, as well as other possible perturbations (stellar morphology, calibration), and deduce that we have most probably detected the presence of dust in the close neighbourhood of Vega. The resulting flux ratio between the stellar photosphere and the debris disk amounts to 1.29+/-0.19% within the FLUOR field-of-view (~7.8 AU). Finally, we complement our K-band study with archival photometric and interferometric data in order to evaluate the main physical properties of the inner dust disk. The inferred properties suggest that the Vega system could be currently undergoing major dynamical perturbations.
description: A&A, accepted -- Press release available at http://www2.cnrs.fr/presse/communique/848.htm
An Apparent Hard X-ray Decline of CH Cygni
Creators: name: Mukai, Koji
name: Ishida, Manabu
name: Kilbourne, Caroline
name: Mori, Hideyuki
name: Terada, Yukikatsu
name: Chan, Kai-Wing
name: Soong, Yang
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: CH Cygni is a symbiotic star consisting of an M giant and an accreting white dwarf, which is known to be a highly variable X-ray source with a complex, two-component, spectra. Here we report on two Suzaku observations of CH Cyg, taken in 2006 January and May, during which the system was seen to be in a soft X-ray bright, hard X-ray faint state. Based on the extraordinary strength of the 6.4 keV fluorescent Fe K-alpha line, we show that the hard X-rays observed with Suzaku are dominated by scattering.
description: 8 pages, 4 figures, accepted by Publications of the Astronomical Society of Japan
Σχολιασμένη μετάφραση από τα γερμανικά στα ελληνικά του επιστημονικού άρθρου της Heidemarie Sarter: «Η διαμεσολάβηση και οι πραγματογλωσσολογικές όψεις στο διαπολιτισμικό μάθημα της ξένης γλώσσας
Creators: name: Σιμοπούλου, Χριστίνα Άγγελου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Διαμεσολάβηση
Κοινό Ευρωπαϊκό Πλαίσιο Αναφοράς για τις Γλώσσες (ΚΕΠΑ)
Λόγος
Mediation
Common European Framework of Reference for Languages (CEFR)
Discourse

description: Σκοπός της μεταπτυχιακής εργασίας ήταν η σύνδεση της μεταφραστικής θεωρίας με την πράξη για τη δημιουργία μιας σημασιολογικά ορθής μετάφρασης από τα γερμανικά στα ελληνικά, και η αποτύπωση βήμα προς βήμα της μεταφραστικής διαδικασίας. Στο κείμενο-πηγή αναφέρονται θεωρητικές προσεγγίσεις επιστημόνων που εμπλούτισαν τον χώρο της διδακτικής των ξένων γλωσσών και της γλωσσολογίας. Εξετάζονται οι τρόποι με τους οποίους μπορεί η επικοινωνία να είναι επιτυχής σε διαπολιτισμικά περιβάλλοντα, καθώς και το πώς θα αναπτυχθεί η διαπολιτισμική ικανότητα των μαθητών στη σχολική τάξη. Προσπαθήσαμε να δημιουργήσουμε ένα λειτουργικό κείμενο-στόχο, λαμβάνοντας υπόψη το κοινό στο οποίο θα απευθυνθεί. Αιτιολογήσαμε τις μεταφραστικές μας επιλογές, δημιουργήσαμε πίνακα ορολογίας και παρουσιάσαμε τη σημασία των όρων σε παρόμοιο συγκείμενο. Στη συνέχεια ασχοληθήκαμε με τα μεταφραστικά προβλήματα που προέκυψαν και την επίλυσή τους.
description: The aim of the present dissertation was to connect the theory and praxis of translation in order to create a translation with a correct semantic content, from german to greek, and also to describe the translation process step by step. The source-text contains theoretical approaches of scientists that have enriched the area of foreign language didactics and linguistics. The source-text analyzes the ways which make the communication successful in intercultural environments, and also the way which would build the classroom intercultural competence of the students. We tried to create a functional target-text considering the audience in which it will be addressed. We justified our translation selections, we created a list of terms and showed their meaning in similar context. Then we presented the translation problems that have arised and their solution.
Emerging infrastructure for Biodiversity Informatics
Creators: name: Kersey, Paul
Publisher: name: F1000 Research Limited
Year: 2019

description: Presentation of the Kew Garden Collection and an outline of the challenges for life science research infrastructures in documenting and studying global plant and fungal diversity and its uses for humanity. Presented at the ELIXIR All Hands meeting 2019 in Lisbon, Portugal.
Additional file 1 of Dihydroartemisinin suppresses the susceptibility of Anopheles stephensi to Plasmodium yoelii by activating the Toll signaling pathway
Creators: name: Liu, Tingting
name: Zheng, Dan
name: Wang, Jing
name: Li, Xin
name: Yu, Shasha
name: Liu, Zhilong
name: Zheng, Feifei
name: Zhao, Caizhi
name: Yang, Xuesen
name: Wang, Ying
Publisher: name: figshare
Year: 2024
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1: Table S1. The primers used in the PCR amplification.
Exploring terrestrial lightning parameterisations for exoplanets and brown dwarfs
Creators: name: Hodosán, G.
name: Helling, Ch.
name: Vorgul, I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Observations and models suggest that the conditions to develop lightning may be present in cloud-forming extrasolar planetary and brown dwarf atmospheres. Whether lightning on these objects is similar to or very different from what is known from the Solar System awaits answering as lightning from extrasolar objects has not been detected yet. We explore terrestrial lightning parameterisations to compare the energy radiated and the total radio power emitted from lightning discharges for Earth, Jupiter, Saturn, extrasolar giant gas planets and brown dwarfs. We find that lightning on hot, giant gas planets and brown dwarfs may have energies of the order of $10^{11}$--$10^{17}$ J, which is two to eight orders of magnitude larger than the average total energy of Earth lightning ($10^9$ J), and up to five orders of magnitude more energetic than lightning on Jupiter or Saturn ($10^{12}$ J), affirming the stark difference between these atmospheres. Lightning on exoplanets and brown dwarfs may be more energetic and release more radio power than what has been observed from the Solar System. Such energies would increase the probability of detecting lightning-related radio emission from an extrasolar body.
description: published in P&SS, 47 pages, 13 figures, https://doi.org/10.1016/j.pss.2021.105247
Πολιτιστική πολιτική και αστική ανάπτυξη: η περίπτωση της πόλης της Ξάνθης
Creators: name: Κατσάκη, Παγώνα Φωτίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: βιώσιμη αστική ανάπτυξη
πολιτιστικό απόθεμα
sustainable urban growth
cultural heritage

description: Η πόλη της Ξάνθης κατέχει μια κεντροβαρή θέση στην Περιφέρεια της Ανατολικής Μακεδονίας-Θράκης. Προκειμένου να αποτελέσει ένα ανταγωνιστικό πολιτιστικό κέντρο τόσο στα πλαίσια της Περιφέρειας όσο και των γειτονικών χωρών, η Ξάνθη πρέπει να μετατραπεί σε μια πόλη με συγκεκριμένη ταυτότητα και κύρος. Συνεπώς, η πόλη, η οποία στοχεύει σε μια βιώσιμη αστική ανάπτυξη, μπορεί να αξιοποιήσει το πλούσιο πολιτιστικό της απόθεμα για τον επαναπροσδιορισμό της ταυτότητάς της, το σχεδιασμό της νέας πολιτιστικής πολιτικής και το μετασχηματισμό της εικόνας της. Ο δυναμικός χαρακτήρας και η εικόνα της Ξάνθης μπορούν να ενισχυθούν και να προωθηθούν ώστε η πόλη να προσελκύσει επισκέπτες, νέους κατοίκους και επενδυτές για να επισκεφτούν, να ζήσουν ή να δουλέψουν στην πόλη, ώστε να εγγυηθούν τη βιώσιμη, μακροχρόνια και διαρκή ανάπτυξή της. Το γεγονός αυτό δύναται να μετατρέψει την πόλη σε βασικό πολιτιστικό κέντρο της Θράκης και σε κύριο κόμβο για την τουριστική ανάπτυξη της Περιφέρειας
description: The city of Xanthi plays an important role within the Prefecture of Eastern Macedonia and Thrace. In order Xanthi to become a competitive cultural center within the region of the Prefecture and the neighboring countries, it is imperative to acquire a certain identity and quality. Therefore, the city, which aims at sustainable urban growth, should deploy the cultural heritage it possesses, in order to redefine its identity, to redesign its cultural policy and improve its picture. The promotion and enhancement of the dynamic character and picture of Xanthi could attract visitors, new residents and investors to visit, live or work in the city resulting in sustainable, long-lasting growth. This fact could turn the city into a major cultural center of Thrace and an important junction for the tourist growth of the Prefecture
description: Σε συνεργασία με το Παιδαγωγικό Τμήμα Δημοτικής Εκπαίδευσης (Πανεπιστήμιο Δυτικής Μακεδονίας)
The electromagnetic coupling and the dark side of the Universe
Creators: name: Bento, M. C.
name: Bertolami, O.
name: Torres, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We examine the properties of dark energy and dark matter through the study of the variation of the electromagnetic coupling. For concreteness, we consider the unification model of dark energy and dark matter, the generalized Chaplygin gas model (GCG), characterized by the equation of state $p=-\frac{A}{ρ^α}$, where $p$ is the pressure, $ρ$ is the energy density and $A$ and $α$ are positive constants. The coupling of electromagnetism with the GCG's scalar field can give rise to such a variation. We compare our results with experimental data, and find that the degeneracy on parameters $α$ and $A_s$, $A_s \equiv A / ρ_{ch0}^{1+α}$, is considerable.
description: Revtex 4, 5 pages and 5 figures
CULTURAL PRESERVATION THROUGH DIPLOMACY: THE CASE OF INDONESIA'S CULTURAL DIPLOMACY TOWARDS THE JAVANESE ETHNIC GROUP IN SURINAME
Creators: name: MUH. KAMIL
name: SIDIK JATMIKA
Publisher: name: Zenodo
Year: 2023
Subjects: Cultural Diplomacy, Indonesia, Suriname, Javanese Ethnic in Suriname.

description: Abstract

This study attempts to reveal Indonesia's cultural diplomacy towards the Javanese ethnic group in Suriname. The Javanese ethnic group in Suriname is one of the ethnic groups who were immigrants since 1890 by the Dutch government under plantation work. Currently, the Javanese ethnic group is the 3rd largest ethnic group in Suriname after Hindustani and Creole ethnic, with a population of more than 80 thousand people or around 15% of the entire Surinamese community.  Through this population, the Javanese ethnic group have an important role in promoting Indonesia in Surinamese society. Due to cultural influence and Dutch being the main language of Suriname, nowadays the young Javanese-Surinamese generation is starting to lose their Javanese culture. With these based on the problem, Indonesia needs to take steps to preserve Javanese culture in Suriname. Cultural preservation can be realized by carrying out soft power cultural diplomacy. This research uses qualitative methods and data collection techniques use literature studies where the data sources are taken from secondary data originating from books, scientific journals, government data, and several online news. Based on the theory of cultural diplomacy by Tulus Warsito and Wahyuni Kartikasari, the author draws two arguments. First, Indonesia's cultural diplomacy towards the Javanese ethnic group in Suriname is not only carried out by the government but is also carried out by non-government actors such as individuals and companies. Second, cultural diplomacy carried out by Indonesia towards the Javanese ethnic group in Suriname is through all aspects of the needs of the Javanese ethnic community in Suriname, such as food, music, news, fashion, education and cultural training.
Inverse problem of reconstruction of degenerate diffusion coefficient in a parabolic equation
Creators: name: Cannarsa, Piermarco
name: Doubova, Anna
name: Yamamoto, Masahiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We consider the inverse problem of identification of degenerate diffusion coefficient of the form $x^αa(x)$ in a one dimensional parabolic equation by some extra data. We first prove by energy methods the uniqueness and Lipschitz stability results for the identification of a constant coefficient $a$ and the power $α$ by knowing an interior data at some time. On the other hand, we obtain the uniqueness result for the identification of a general diffusion coefficients $a(x)$ and also the power $α$ form a boundary data on one side of the space interval. The proof is based on global Carleman estimates for a hyperbolic problem and an inversion of the integral transform similar to the Laplace transform. Finally, the theoretical results are satisfactory verified by numerically experiments.
The production of matter from curvature in a particular linearized high order theory of gravity and the longitudinal response function of interferometers
Creators: name: Corda, Christian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The strict analogy between scalar-tensor theories of gravity and high order gravity is well known in literature. In this paper it is shown that, from a particular high order gravity theory known in literature, it is possible to produce, in the linearized approch, particles which can be seen like massive scalar modes of gravitational waves and the response of interferometers to this type of particles is analyzed. The presence of the mass generates a longitudinal force in addition of the transverse one which is proper of the massless gravitational waves and the response of an arm of an interferometer to this longitudinal effect in the frame of a local observer is computed. This longitudinal response function is directly connected with the function of the Ricci scalar in the particular action of this high order theory. Important conseguences from a theoretical point of view could arise from this approach, because it opens to the possibility of using the signals seen from interferometers to understand which is the correct theory of gravitation.
description: Accepted for Journal of Cosmology and Astroparticle Physics
Supplementary document for Thermal tunable silicon valley photonic crystal ring resonators at telecommunication wavelength - 6171192.pdf
Creators: name: Kang, Lijuan
name: Fei, Hongming
name: Lin, Han
name: Wu, Min
name: Wang, Xiaorong
name: Zhang, Mingda
name: liu, xin
name: sun, fei
name: Chen, Zhihui
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Thermal tunable silicon valley photonic crystal ring resonators at telecommunication wavelength
CA²⁺-activated potassium channels in smooth muscle cell from cerebral artery of adult rat
Creators: name: Wang, Yihong
Publisher: name: University of British Columbia
Year: 2008

description: Patch clamp methods were used to study the biophysical properties of Ca ²+ -activated potassium (KCa) channels in cerebrovascular smooth muscle cells (CVSMCs) derived from the cerebral arteries of adult rats. Procedures were developed for the enzymatic dissociation of CVSMCs from cerebral arteries. Dissociated cells were maintained at 4°C or cultured at 37°C for 1-3 days prior to use. CVSMCs were identified using a monoclonal antibody specific for smooth muscle a -actin. The calcium-sensitive fluorescent probe fura-2 was employed to measure tht resting and serotonin (5-HT) stimulated levels of free intracellular calcium, [Ca ²+ ] in these cells. A resting [Ca ²+ ]i level of 41 ± 5.6 nM was obtained from a total of 110 CVSMCs in culture. Serotonin (5-HT, 10 nM to 100μ M) induced a transient increase of [Ca ²+Ji above resting levels. The effects of three known blockers of voltage-dependent Ca ²+ channels, nifedipine, La³ + and Co²+ were tested by coapplication with 5-HT. It was found the neither 10 mM LaC13 nor 10 mM C0C12 reduced the rise in [Ca ²+ ft evoked by application of 1 μ M 5-HT. Nifedipine (10 μ M) also failed to significantly reduce the rise in [Ca ²+ ]i activated by 1 μ M5-HT. The effects of the partially selective 5-HT₂ receptor antagonist, ketanserin (5 nM) reversibly attenuated the 5-HT response in all cells tested. The effect of 5-HT on [Ca ²+ Ji was clearly dose-dependent and the concentration of 5- HT producing a half-maximal increase in [Ca ²+ ]i was found to be 10 nM.[more abstract]
Aspects of quantum coherence in the optical Bloch equations
Creators: name: Sanz, A. S.
name: Han, H.
name: Brumer, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Aspects of coherence and decoherence are analyzed within the optical Bloch equations. By rewriting the analytic solution in an alternate form, we are able to emphasize a number of unusual features: (a) despite the Markovian nature of the bath, coherence at long times can be retained; (b) the long-time asymptotic degree of coherence in the system is intertwined with the asymptotic difference in level populations; (c) the traditional population-relaxation and decoherence times, $T_1$ and $T_2$, lose their meaning when the system is in the presence of an external field, and are replaced by more general overall timescales; (d) increasing the field strength, quantified by the Rabi frequency, $Ω$, increases the rate of decoherence rather than reducing it, as one might expect; and (e) maximum asymptotic coherence is reached when the system parameters satisfy $Ω^2 = 1/(T_1 T_2)$.
description: 18 pages, 6 figures; to appear in J Chem Phys
Rational integrals of 2-dimensional geodesic flows: new examples
Creators: name: Agapov, Sergei
name: Shubin, Vladislav
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 37J35, 53D25 (Primary), 35C05 (Secondary)

description: This paper is devoted to searching for Riemannian metrics on 2-surfaces whose geodesic flows admit a rational in momenta first integral with a linear numerator and denominator. The explicit examples of metrics and such integrals are constructed. Few superintegrable systems are found having both a polynomial and a rational integrals which are functionally independent of the Hamiltonian.
Additional file 1 of Biogeographic shifts in the microbial co-occurrence network features of three domains across complex environmental gradients in subtropical coastal waters
Creators: name: Hou, Dandi
name: Yan, Huizhen
name: Lin, Huaying
name: Zhang, Huajun
name: Zhang, Demin
name: Wang, Kai
Publisher: name: figshare
Year: 2024
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Oceanography
subject: FOS: Earth and related environmental sciences
subject: Ecology

description: Supplementary material: Figure S1. Boxplots showing the changes of environmental factors from inshore to offshore zones. Figure S2. Rarefaction curves showing α-diversity indices (including Chao 1, observed species, phylogenetic diversity (PD), and the Shannon–Wiener index) of each sample at different sequencing depths. Figure S3. Boxplots showing the changes of α-diversity indices (including Chao 1, observed species, phylogenetic diversity (PD), and Shannon–Wiener index) of Bacteria, Archaea, and Microeukaryotes from inshore to offshore zones. Figure S4. Geographic patterns of topological features (the number of nodes and edges) for intra-domain sub-networks of three microbial domains. Figure S5. Scatter diagrams showing the relationships between topological features (average degree and betweenness centrality) of co-occurrence networks for three domains and environmental factors across the sampling zones. Figure S6. Ternary plots showing the distribution patterns of each module in the intra-domain co-occurrence networks for Bacteria, Archaea, and Microeukaryotes in different zones (inshore, nearshore and offshore). Figure S7. Boxplots showing the differences in topological features (the number of nodes and edges, degree, and betweenness centrality) of inter-domain sub-networks for three microbial communities in the inshore, nearshore and offshore zones. Figure S8. Ternary plots showing the distribution patterns of all OTUs (B) in the inter-domain co-occurrence network and the OTUs in Module A (C) and Module B (D) in different zones (inshore, nearshore and offshore). Table S1. Information for primers used in this study. Table S2. Description of topological features. Table S3. Detailed information about the network hubs, module hubs and connectors for the inter-domain co-occurrence network of three microbial communities.
Giant sharp magnetoelectric switching in multiferroic epitaxial La_{0.67}Sr_{0.33}MnO_3 on BaTiO_3
Creators: name: Eerenstein, W.
name: Wiora, M.
name: Prieto, J. L.
name: Scott, J. F.
name: Mathur, N. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetoelectric coupling permits a magnetic order parameter to be addressed electrically or vice versa, and could find use in data storage, field sensors and actuators. Coupling constants for single phase materials such as chromium dioxide, boracites and manganites are typically as low as 10^{-12} - 10^{-9} s/m, e.g. because the polarisations and magnetisations are small. Two phase multiferroics with strain mediated coupling, such as laminates, composites and epitaxial nanostructures, are more promising because each phase may be independently optimised. The resulting magnetoelectric switching can be larger, e.g. 10^{-8} s/m, but it is not sharp because clean coupling is precluded by the complexity of the microstructures and concomitant strain fields. Here we report a giant sharp magnetoelectric effect at a single epitaxial interface between a 40 nm ferromagnetic stress-sensitive La_{0.67}Sr_{0.33}MnO_3 film, and a 0.5 mm BaTiO_3 substrate that is ferroelectric, piezoelectric and ferroelastic. By applying a small electric field (4-10 kV/cm) across the entire structure, we achieve persistent changes in film magnetisation of up to 65% near the BaTiO_3 structural phase transition at around 200 K. This represents a giant magnetoelectric coupling (2.3*10-7 s/m) that arises from strain fields due to ferroelastic non-180 degree domains whose presence we confirm using x-ray diffraction. The coupling persists over a wide range of temperatures including room temperature, and could therefore inspire a range of sensor and memory applications.
description: 20 sides, 4 main figures, 14 supplementary figures, 1 supplementary table. The new version has three minor changes: an explanation of film anisotropy with a new ref [20], a confirmation that films are not trivially damaged by magnetoelectric meaurements, and the correct magnetic field history during magnetoelectric measurements
Low temperature photoluminescence study of thin epitaxial GaAs films on Ge substrates
Creators: name: Brammertz, Guy
name: Mols, Yves
name: Degroote, Stefan
name: Motsnyi, Vasyl
name: Leys, Maarten
name: Borghs, Gustaaf
name: Caymax, Matty
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Thin epitaxial GaAs films, with thickness varying from 140 to 1000 nm and different Si doping levels, were grown at 650C by organometallic vapor phase epitaxy (OMVPE) on Ge substrates and extensively analyzed by low-temperature photoluminescence (PL) spectroscopy.
description: 19 pages, 14 figures
Population III star explosions and Planck 2018 data
Creators: name: Abe, Katsuya T.
name: Tashiro, Hiroyuki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the effect of the population III (Pop III) stars supernova explosion~(SN) on the high redshifts reionization history using the latest Planck data. It is predicted that massive Pop~III stars~($130M_\odot\leq M\leq 270M_\odot$) explode energetically at the end of their stellar life as pair-instability supernovae (PISNe). In the explosion, supernova remnants grow as hot ionized bubbles and enhance the ionization fraction in the early stage of the reionization history. This enhancement affects the optical depth of the cosmic microwave background~(CMB) and generates the additional anisotropy of the CMB polarization on large scales. Therefore, analyzing the Planck polarization data allows us to examine the Pop III star SNe and the abundance of their progenitors, massive Pop III stars. In order to model the SN contribution to reionization, we introduce a new parameter $ζ$, which relates to the abundance of the SNe to the collapse fraction of the Universe. Using the Markov chain Monte Carlo method with the latest Planck polarization data, we obtain the constraint on our model parameter, $ζ$. Our constraint tells us that observed CMB polarization is consistent with the abundance of PISNe predicted from the star formation rate and initial mass function of Pop III stars in recent cosmological simulations. We also suggest that combining further observations on the late reionization history such as high redshift quasi-stellar object~(QSO) observations can provide tighter constraints and important information on the nature of Pop III stars.
description: 9 pages, 3 figures
Inflationary model in minimally modified gravity theories
Creators: name: Sangtawee, Jakkrit
name: Karwan, Khamphee
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We have investigated inflationary model constructed from minimally modified gravity (MMG) theories. The MMG theory in the form of $f({\bf H}) \propto {\bf H}^{1+p}$ gravity where, ${\bf H}$ is the Hamiltonian constraint in the Einstein gravity and $p$ is constant, has been studied. An inflation is difficult to be achieved in this theory of gravity unless an additional scalar field playing a role of inflaton is introduced in the model. We have found that the inflaton with exponential potential can drive inflation with graceful exist different from the case of Einstein gravity. The slow-roll parameter for both the exponential and the power-law potentials is inversely proportional to number of e-folding similar to the case of the Einstein gravity. We also have found for the scalar perturbation that the curvature perturbation in the comoving gauge on super Hubble radius scales grows rapidly during inflation unless $p =0$. For the tensor modes, the amplitude of the perturbations is constant on large scales, and sound speed of the perturbations can diviate from unity and can vary with time depending on the form of $f({\bf H})$.
description: 19 pages, 7 figures, references added, accepted for publication in Physical Review D, clarifications of the definition for the curvature perturbation, corrected typos
Μέχρι το πλοίο: η συγκρότηση της ελληνικότητας στην ταινία «μέχρι το πλοίο» του Αλέξη Δαμιανού μέσα από τα διηγήματα «δαχτυλίδι» του Σπήλιου Πασαγιάννη και «Νανότα» του Γρηγόριου Ξενόπουλου
Creators: name: Τσαντίλη, Ελένη Μαρία Αλκιβιάδη
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Δαμιανός Αλέξης
Ξενόπουλος Γρηγόριος
Πασαγιάννης Σπήλιος
Νανότα
ελληνικότητα
νεορεαλισμός
κινηματογραφική μεταφορά
Damianos Alexis
Xenopoulos Gregorios
Pasagiannis Spelios
Nanota
greek identity

description: Μελετάμε τη μεταφορά δύο διηγημάτων («Δαχτυλίδι», Σπήλιος Πασαγιάννης, 1921, «Νανότα», Γρηγόριος Ξενόπουλος, 1916) και ενός νεοελληνικού λαϊκού τραγουδιού στην ταινία Μέχρι το πλοίο του Αλέξη Δαμιανού (1966). Κατά την κινηματογραφική προσαρμογή διαμορφώνεται το ιδεολογικό πλαίσιο της ταινίας που αφορά στην ταυτότητα του σύγχρονου Έλληνα. Η ταυτότητά του αλλοιώνεται από τις διαβρωτικές συνθήκες της νεωτερικής ζωής, που στην ταινία εκδηλώνονται με τη μετανάστευση και τη θέση της γυναίκας στο οικογενειακό περιβάλλον. Ο Δαμιανός τη διερευνά μέσα από την έννοια της λαϊκότητας, σε αντίθεση με το κυρίαρχο ιδεολόγημα της ελληνικότητας. Στην εξέταση του θέματος λαμβάνονται υπόψη οι αισθητικές καταβολές των διακειμένων, από τον νατουραλισμό και τον συμβολισμό, στον κινηματογραφικό νεορεαλισμό
description: The film “Until the ship sales” (1966) by Alexis Damianos is the cinematic adaptation of two short novels (“The wedding ring”, Spelios Pasagiannis, 1921, “Nanota”, Gregorios Xenopoulos, 1916) and a greek popular song. Adaptation constructs an ideological context about modern greek identity, which is visualised through the aspects of immigration, and social and domestic exploitation of women. Damianos explores the concept of noble vulgarity instead of greekness. During the examination of the subject we take under consideration the aesthetics of the intertexts; naturalism, symbolism and neorealism
SensPick: Sense Picking for Word Sense Disambiguation
Creators: name: Zobaed, Sm
name: Haque, Md Enamul
name: Rabby, Md Fazle
name: Salehi, Mohsen Amini
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Word sense disambiguation (WSD) methods identify the most suitable meaning of a word with respect to the usage of that word in a specific context. Neural network-based WSD approaches rely on a sense-annotated corpus since they do not utilize lexical resources. In this study, we utilize both context and related gloss information of a target word to model the semantic relationship between the word and the set of glosses. We propose SensPick, a type of stacked bidirectional Long Short Term Memory (LSTM) network to perform the WSD task. The experimental evaluation demonstrates that SensPick outperforms traditional and state-of-the-art models on most of the benchmark datasets with a relative improvement of 3.5% in F-1 score. While the improvement is not significant, incorporating semantic relationships brings SensPick in the leading position compared to others.
Mapping of D8S136 to the short arm of human chromosome 8
Creators: name: Mitchell, Heather Katherine
Publisher: name: University of British Columbia
Year: 2008

description: Cosmid clones containing NotI sites and (GT)n repeats were randomly isolated from the flow-sorted human chromosome 8 library, LA08NC01, by hybridization with nick-translated poly(dC-dA)- (dG-dT) and subsequent EcoRI/Notl and NotI digestion of GT-hybridizing clones. An anonymous DNA sequence, D8S136, containing three (GT)n repeats and two NotI sites was isolated. Three sequence tagged sites (STSs), unique sequences identifying D8S136, were generated and the physical distances separating the sites were determined. Two of the (GT)n repeats within this segment were shown to be highly polymorphic in DNA from members of the Centre d'Etude Polymorphisme Humain (CEPH) panel of 40 reference families. These polymorphisms were designated D8S136P1 and D8S136P2. Southern blot analysis and amplification of DNA from somatic cell hybrid lines using the polymerase chain reaction (PCR) mapped D8S136 to 8p, interval 8p21^cen and linkage analysis localized this marker to an approximately 9.9 centimorgan (cM) region between flanking marker loci D8S133 and D8S5. Analysis of allelic association between D8S136P1 and D8S136P2 indicated minimal disequilibrium. The disequilibrium did not appear to measurably decrease the amount of information gained by typing individuals for both D8S136P1 and D8S136P2. The PIC values for D8S136P1 and D8S136P2 were 0.82 and 0.69, respectively. The PIC of the haplotype was 0.95. D8S136 is an extremely polymorphic locus which will be useful for physical and linkage mapping studies.
An asteroseismic study of the beta Cephei star beta Canis Majoris
Creators: name: Mazumdar, Anwesh
name: Briquet, Maryline
name: Desmet, Maarten
name: Aerts, Conny
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a detailed analysis of 452 ground-based high-resolution high S/N spectroscopic measurements spread over 4.5 years for beta Canis Majoris with the aim to determine the pulsational characteristics of this star, and to use them to derive seismic constraints on the stellar parameters. We determine pulsation frequencies in the SiIII 4553 Angstrom line with Fourier methods. We identify the m-value of the modes by taking into account the photometric identifications of the degrees l. To this end we use the moment method together with the amplitude and phase variations across the line profile. The frequencies of the identified modes are used for a seismic interpretation of the structure of the star. We confirm the presence of the three pulsation frequencies already detected in previous photometric datasets: f_1 = 3.9793 c/d (46.057 microHz), f_2 = 3.9995 c/d (46.291 microHz) and f_3 = 4.1832 c/d (48.417 microHz). For the two modes with the highest amplitudes we unambiguously identify (l_1,m_1) = (2,2) and (l_2,m_2) = (0,0). We cannot conclude anything for the third mode identification, except that m_3 > 0. We also deduce an equatorial rotational velocity of 31 +/- 5 Km/s for the star. We show that the mode f_1 must be close to an avoided crossing. Constraints on the mass (13.5 +/- 0.5 Msun), age (12.4 +/- 0.7 Myr) and core overshoot (0.20 +/- 0.05 H_P) of beta CMa are obtained from seismic modelling using f_1 and f_2.
description: Accepted for publication in A&A
On the structure of generalized toric codes
Creators: name: Ruano, Diego
Publisher: name: arXiv
Year: 2006
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Toric codes are obtained by evaluating rational functions of a nonsingular toric variety at the algebraic torus. One can extend toric codes to the so called generalized toric codes. This extension consists on evaluating elements of an arbitrary polynomial algebra at the algebraic torus instead of a linear combination of monomials whose exponents are rational points of a convex polytope. We study their multicyclic and metric structure, and we use them to express their dual and to estimate their minimum distance.
Additional file 9 of Design and implementation of a metagenomic analytical pipeline for respiratory pathogen detection
Creators: name: Viana, Pablo Alessandro B
name: Tschoeke, Diogo Antonio
name: de Moraes, Laise
name: Santos, Luciane Amorim
name: Barral-Netto, Manoel
name: Khouri, Ricardo
name: Ramos, Pablo Ivan P
name: Meirelles, Pedro Milet
Publisher: name: figshare
Year: 2024
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Supplementary Material 9