cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Metahistory of the everyday : historical consciousness in lived existence : (set in late eighteenth century Britain)
Creators: name: Greenberg, Devorah
Publisher: name: University of British Columbia
Year: 2011

description: This paper argues that historical consciousness is a conceptual system comprising interactive elements which allow evaluation of the temporal/historical universe and self placement in time/history. It further contends that historical consciousness operates in lived existence and may be analyzed through personal life records- diaries. The elements of historical consciousness, identified by assessing previous works on the phenomenon, comprise a model which is applied to seven British diaries written in the late eighteenth century. Application allows description of a specific manifestation of historical consciousness. In the tradition of mentalite we will see both how the diarists make sense of temporal/historical experience and what kind of sense they make.
Fragmentation function of $g\to Q\bar{Q}(^3S_1^{[8]})$ in soft gluon factorization and threshold resummation
Creators: name: Chen, An-Ping
name: Jin, Xiao-Bo
name: Ma, Yan-Qing
name: Meng, Ce
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the fragmentation function of the gluon to color-octet $^3S_1$ heavy quark-antiquark pair using the soft gluon factorization (SGF) approach, which expresses the fragmentation function in a form of perturbative short-distance hard part convoluted with one-dimensional color-octet $^3S_1$ soft gluon distribution (SGD). The short distance hard part is calculated to next-to-leading order in $α_s$ and a renormalization group equation for the SGD is derived. By solving the renormalization group equation, threshold logarithms are resummed to all orders in perturbation theory. The comparison with gluon fragmentation function calculated in NRQCD factorization approach indicates that the SGF formula resums a series of velocity corrections in NRQCD which are important for phenomenological study.
description: 38 pages, 8 figures
A new approach to spectroscopic phase curves: The emission spectrum of WASP-12b observed in quadrature with HST/WFC3
Creators: name: Arcangeli, J.
name: Désert, J. -M.
name: Parmentier, V.
name: Tsai, S. -M.
name: Stevenson, K. B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We analyse emission spectra of WASP-12b from a partial phase curve observed over three epochs with the Hubble Space Telescope, covering eclipse, quadrature, and transit, respectively. As the 1.1-day period phase curve was only partially covered over three epochs, traditional methods to extract the planet flux and instrument systematic errors cannot recover the thermal emission away from the secondary eclipse. To analyse this partial phase curve, we introduce a new method, which corrects for the wavelength-independent component of the systematic errors. Our new method removes the achromatic instrument and stellar variability, and uses the measured stellar spectrum in eclipse to then retrieve a relative planetary spectrum in wavelength at each phase. We are able to extract the emission spectrum of an exoplanet at quadrature outside of a phase curve for the first time; we recover the quadrature spectrum of WASP-12b up to an additive constant. The dayside emission spectrum is extracted in a similar manner, and in both cases we are able to estimate the brightness temperature, albeit at a greatly reduced precision. We estimate the brightness temperature from the dayside (Tday=3186+-677 K) and from the quadrature spectrum (Tquad=2124+-417 K) and combine them to constrain the energy budget of the planet. We compare our extracted relative spectra to global circulation models of this planet, which are generally found to be a good match. However, we do see tentative evidence of a steeper spectral slope in the measured dayside spectrum compared to our models. We find that we cannot match this increased slope by increasing optical opacities in our models. We also find that this spectral slope is unlikely to be explained by a non-equilibrium water abundance, as water advected from the nightside is quickly dissociated on the dayside.
description: Published in A&A Volume 646, February 2021
Chandra and HST observations of gamma-ray blazars: comparing jet emission at small and large scales
Creators: name: Tavecchio, F.
name: Maraschi, L.
name: Wolter, A.
name: Cheung, C. C.
name: Sambruna, R. M.
name: Urry, C. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new Chandra and HST data for four gamma-ray blazars selected on the basis of radio morphology with the aim of revealing X-ray and optical emission from their jets at large scales. All the sources have been detected. Spectral Energy Distributions of the large scale jets are obtained as well as new X-ray spectra for the blazar cores. Modeling for each object the core (sub-pc scale) and large-scale (>100 kpc) jet SEDs, we derive the properties of the same jet at the two scales. The comparison of speeds and powers at different scales supports a simple scenario for the dynamics and propagation of high power relativistic jets.
description: Accepted for publication in ApJ
FAIRCDR: An Elixir Implementation Study to examine the FAIRness of the ELIXIR Core Data Resources
Creators: name: Dumontier, Michel
Publisher: name: F1000 Research Limited
Year: 2019

description: Presentation of the ELIXIR Implementation study FAIRness of the current ELIXIR Core resources at the ELIXIR All Hands meeting 2019 in Lisbon, Portugal.
Μελέτη βιοχημικών παραμέτρων και μηχανισμών που σχετίζονται με την μεταγωγή του σήματος σε ιστούς του μυδιού Mytilus Galloprovinciallis(Lmc.) μετά από έκθεσή του σε ρυπογόνους παράγοντες: συμβολή στην καθιέρωση νέων βιομαρτύρων ρύπανσης
Creators: name: Νταϊλιάνης, Στέφανος Ν.
Publisher: name: Aristotle University of Thessaloniki
Year: 2005
Subjects: Βιοπαρακολούθηση
Πρωτεϊνική κινάση
Biomonitoring
Mytilus galloprovincialis

description: Η παρούσα μελέτη ανέδειξε τη χρησιμότητα των μεταλλοθειονικών(ΜΤ) και της ακετυλχολιυεστεράσης ως αξιόπιστα εργαλεία(βιομάρτυρες)σε προγράμματα βιοπαρακολούθησης της θαλάσσιας ρύπανσης, ενώ παρέχει αξιόλογα δεδομένα για τη χρησιμοποίηση της μεθόδου προσδιορισμού του CAMP ως αξιόπιστο βιομάρτυρα οργανικής και ανόργανης ρύπανσης σε θαλάσσια οικοσυστήματα. Επιπλέον, μελέτες σε απομονωμένα κύτταρα πεπτικού αδένα του μυδιού Mytilus galloprovincialia, έδωσαν σημαντικά δεδομένα, σχετικά με την συμμετοχή σηαμτοδοτικών μηχανισμών στην πρόκληση των τοξικών επιπτώσεων του καδμίου. Συγκεκριμένα, το κάδμιο αλληλεπιδρά με α-και β- αδρενεργικούς υποδοχείς προκαλώντας αύξηση της δραστικότητας του γλυκολυτικού ενζύμου πυροσταφυλική κινάση, αύξηση των δραστικών μορφών και διαταραχές της δομικής ακεραιότητας του DNA, μέσω της επαγωγής σηματοδοτικού μηχανισμού, στον οποίο κύριο ρόλο διαδραματίζουν η αντλία ανταλλαγής ιόντων Na^(+)/H^(+), η πρωτεϊνική κινάση(CPKC) και το CAMP
description: The present study reinforces the role of metallothionein(MT) and acetylcholinesterase(ACHE) as useful tools for the evaluation of marine pollution monitoring, while give rise at the promising role of CAMP in biomonitoring. Another purpose of our study is the enrichement of our knowledge concerning the mechanisms that organisms adopt when they are exposed to pollutants such as cadmirin. Spefically, cadmirins after interaction with a-and b-adrenergic receptors can induce signal transuction pathway, leading to pynivate kinase activation, ROS production and DNA damage. Protein kinase(CPKC), Na^(+)/H^(+) exchanger and CAMP seem to play important role in the induction of cadmirins effects
Echeneidae Rafinesque 1810
Creators: name: Golani, Daniel
name: Fricke, Ronald
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Echeneidae

description: ECHENEIDAE   Echeneis naucrates Linnaeus 1758
 Gulf of Suez: Egypt (Kossmann & Räuber 1877).
 Gulf of Aqaba: Israel (Steinitz & Ben-Tuvia 1955), Jordan (Khalaf & Disi 1997).
 Red Sea main basin: Egypt (Klunzinger 1871), Sudan (Bamber 1915), Eritrea (Picaglia 1895), Saudi Arabia (Forsskål in Niebuhr 1775, as E. neucrates; see Fricke 2008), Yemen (Forsskål in Niebuhr 1775, as E. neucrates; see Fricke 2008).
 General distribution: Circumglobal in tropical and warm temperate seas.
 Remora brachyptera (Lowe 1839)
 Gulf of Suez: ¯
 Gulf of Aqaba: ¯
 Red Sea main basin: Egypt (Klunzinger 1884, as Echeneis brachyptera).
 General distribution: Circumglobal in tropical and warm temperate seas.
 Remora remora (Linnaeus 1758)
 Gulf of Suez: Egypt (Botros 1971, as Echeneis remora).
 Gulf of Aqaba: Jordan (Khalaf & Disi 1997).
 Red Sea main basin: Sudan (Bamber 1915, as Echeneis remora).
 General distribution: Circumglobal.
 Remorina albescens (Temminck & Schlegel 1850)
 Gulf of Suez: ¯
 Gulf of Aqaba: Israel (Dor 1970, as Echeneis albescens).
 Red Sea main basin: ¯
 General distribution: Circumglobal in tropical and warm temperate seas.
description: Published as part of Golani, Daniel & Fricke, Ronald, 2018, Checklist of the Red Sea Fishes with delineation of the Gulf of Suez, Gulf of Aqaba, endemism and Lessepsian migrants, pp. 1-215 in Zootaxa 4509 (1) on pages 81-82, DOI: 10.11646/zootaxa.4509.1.1, http://zenodo.org/record/2607566
[Elicitation session in pairs]
Creators: name: Chen, I-Hsuan
name: Kang, Shinae
name: Stickles, Elise
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: cab

description: 2 WAV, 1 TextGrid, and 1 TXT file.
Complement clauses (ihc).
Filling dependence of a new type of charge ordered liquid on a triangular lattice system
Creators: name: Hotta, Chisa
name: Furukawa, Nobuo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the recently reported characteristic gapless charge ordered state in a spinless fermion system on a triangular lattice under strong inter-site Coulomb interactions. In this state the charges are spontaneously divided into solid and liquid component, and the former solid part aligns in a Wigner crystal manner while the latter moves among them like a pinball. We show that such charge ordered liquid is stable over a wide range of filling, $1/3
description: 3 pages 3 figures
Acute Cerebellar Ataxia Associated with Modest Elevation of Anti-GAD Antibodies in a Young Patient
Creators: name: Gomez, Juliana
name: Jin, Dongkwan
Publisher: name: Tremor and Other Hyperkinetic Movements
Year: 2019

description: Background: Anti-GAD-related cerebellar ataxia has rarely been described as an acute cause of autoimmune ataxia. Phenomenology Shown: A young female who acutely developed anti-GAD-associated ataxia with magnetic resonance imaging (MRI) showing cerebellar edema and follow-up MRI 6 months later showing cerebellar atrophy. Educational Value: Recognize that anti-GAD-associated cerebellar ataxia can present in a young adult as an acute and severe cause of ataxia, with cerebellar changes evident on MRI.
description: Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
Συμβολή στην μελέτη του καρκινικού πηκτικού παράγοντα στην οξεία λευχαιμία
Creators: name: Παπαϊωάννου, Γεωργία Ν.
Publisher: name: Aristotle University of Thessaloniki
Year: 2005
Subjects: Καρκινικός πηκτικός παράγων
Πηκτικός μηχανισμός
Cancer procoagulant
Coagulation cascade

description: Η παρούσα μελέτη πραγματοποιήθηκε προκειμένου να ανιχνευτεί γ ύπαρξη προπηκτικής δραστηριότητας από τα κύτταρα ασθενών με ΟΜΛ και ΟΛΛ. Διαπιστώθηκε ότι τα εκχυλίσματα των λευχαιμικών κυττάρων ασθενών με ΟΛ τύπου Μ1-Μ5, παρουσιάζουν προπηκτική δραστηριότητα. Με πηκτικές μεθόδους διαπιστώθηκε ότι η δραστηριότητα αυτή οφείλεται σε μια κυστεϊνική πρωτεάση που ενεργοποεί άμεσα τον πηκτικό παράγοντα Χ και δρά ανεξάρτητα από την ύπαρξη παράγοντα VII στις δοκιμασίες. Ο παράγοντας αυτός ονομάστηκε καρκινικός πηκτικός παράγων ή κατά την αγγλοσαξωνική ορολογία Cancer Procoagulant(CP). Με μέθοδο αναστολής συτού του παράγοντα, διαπιστώθηκε ότι η παραμένουσα πηκτική δραστηριότητα σε ορισμένα λευχαιμικά κύτταρα οφείλεται στον ιστικό παράγοντα ή κατά την αγγλοσαξονική ορολογία Tissue factor. Το 60% των ασθενών με οξεία λευχαιμία τύπου Μ1-Μ4 παρουσιάζουν προπηκτική δραστηριότητα κυρίως CP ή λιγότερο TF. Τα κύτταρα της Μ5, παρουσιάζουν μόνον TF. Τα κύτταρα των ασθενών με ΟΜΛ-Μ3 παρουσιάζουν 10-80 φορές μεγαλύτερα επίπεδα CP από τις άλλες μορφές ΟΜΛ. Το 60% των ασθενών με ΟΛΛ παρουσιάζουν προπηκτική δραστηριότητα αλλά με χαμηλούς τίτλους που οφείλονται στον CP ή στον TF ή και στους δύο μαζί. Ο CP εξαφανίζονται στην ύφεση lm νόσου ή εμφανίζεται με την υποτροπή
description: The present was undertaken in order to investigate the presence of procoagulant activity from the blont cells of patients with AML and ALL. It was found that the extracts of leukemia cells of the patients with Mi-M5 AML, present procoagulants activity. With coagulations methods, it was found, that this proagulant activity is the results of a cysteine proteinone that initiates coagulation by directly activating factor X, and acts independently of the present of factor VII. This new coagulation factor is called Cancer proagulants
Elastic Response of Wire Frame Glasses. II. Three Dimensional Systems
Creators: name: King, David A.
name: Doi, Masao
name: Eiser, Erika
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the elastic response of rigid, wire frame particles in concentrated, glassy suspensions to a step strain by applying the simple, geometric methods developed in part I. The wire frame particles are comprised of thin, rigid rods of length $L$ and their number density, $ρ$, is such that $ρL^3 \gg 1$. We specifically compare rigid rods to L-shapes made of two equal length rods joined at right angles. The behaviour of wire frames is found to be strikingly different from that of rods. The linear elasticity scales like $ρ^3 L^6$ for L-shaped particles, whereas it scales proportional to $ρ$ for rods and the non-linear response shows a transition from shear hardening to shear softening at a critical density $ρ_c \sim \sqrt{K / k_B T L^6}$, where $K$ is the bending modulus of the particles. For realistic particles made of double stranded DNA, this transition occurs at densities of about $ρL^3 \sim 10$. The reason for these differences is that wire frames can be forced to bend by the entanglements with their surroundings, whereas rods always remain straight. This is found to be very important even for small strains, with most particles being bent above a critical strain $γ_c \sim (ρL^3)^{-1}$.
description: 9 pages, 4 figures
[Elicitation session in pairs]
Creators: name: Palacio, Philip Tim
name: Cibelli, Emily
name: Kang, Shinae
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: cab

description: 4 WAV, 2 TextGrid, and 2 TXT files.
Garifuna numbers and spatial relations (esc_sak_01, esc_sak_03).
Measurement of the complex dielectric constant of a single gold nanoparticle
Creators: name: Stoller, Patrick
name: Jacobsen, Volker
name: Sandoghdar, Vahid
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A differential interference contrast microscopy technique, which employs a photonic crystal fiber as a white-light source, is used to measure both the real and imaginary parts of the complex dielectric constant of single 10 and 15 nm gold nanoparticles over a wavelength range of 480 to 610 nm. Noticeable deviations from bulk gold measurements are observed at short wavelengths and for individual particles even after taking into account finite-size surface damping effects.
description: 3 pages, 3 figures, resubmission after minor text changes
Επίπεδα λεπτίνης στον ορό γυναικών που υποβάλλονται σε εξωσωματική γονιμοποίηση
Creators: name: Δρίζης, Ευάγγελος Ν.
Publisher: name: Aristotle University of Thessaloniki
Year: 2005
Subjects: Λεπτίνη
17β-Οιστραδιόλη
Leptin
17b-Estradiol

description: Σκοπός της μελέτης ήταν η διερεύνηση των επιπέδων λεπτίνης ορού και ωοθυλακικού υγρού στις γυναίκες που υποβάλλονται σε εξωσωματική γονιμοποίηση(IVF). Ατομα που μελετήθηκαν και μέθοδος : 47 γυναίκες υποβλήθηκαν σε IVF και κατατάχθηκαν τυχαία σε 2 ομάδες. Η πρώτη ομάδα υποβλήθηκε σε IVF με GnRH αγωνιστές και γοναδοτροπίνες και η δεύτερη με GnRH ανταγωνιστές και γοναδοτροπίνες. εγιναν 6 αιμοληψίες σε όλη τη διάρκεια της εξωσωματικής. Λήφθηκε και ωοθυλακικό υγρό. Αποτελέσματα : δεν υπήρχαν διαφορές στα επίπεδα λεπτίνης ορού και ωοθυλακικού υγρού ανάμεσα στις δύο ομάδες. Μεταβλήθηκαν όμως σημαντικά κατά τη διάρκεια της IVF. Οι δύο ομάδες διέφεραν ως προς αυτές τις μεταβολές(ρ=0,016) σε όλα, εκτός από το πρώτο βήμα. Τα επίπεδα της λεπτίνης συσχετίζονταν με το ΒΜΙ, ενώ δεν συσχετίζονταν με τις τιμές της οιστραδιόλης, τον αριθμό και την ποιότητα των ωαρίων, εμβρύων και του πάχους του ενδομητρίου. Συμπεράσματα : η λεπτίνη ορού μεταβάλλεται σημαντικά κατά τη διάρκεια της IVF. Η μεταβολή είναι διαφορετική στα δύο πρωτόκολλα ωοθηκική διέγερσις. Δε σχετίζεται με τις τιμές της οιστραδιόλης, τον αριμό και την ποιότητα των ωαρίων, εμβρύων και του πάχους του ενδομητρίου και δεν αποτελεί προγνωστικό δείκτη της έκβασης της εξωσωματικής
description: The aim of this study was to investigate the fructuation of leptin in serum in women undergoing ovarian stimulation for in vitro fertilization(IVF). Subjects and methods : 47 women were randomly selected to two different group. The 1st group consisted of 27 women that underwent ovarian stimulation with GnRH agonists and gonadotropins. The 2nd group consisted of 20 women that underwent ovarian stimulation with GnRH antagonists and gonadotropins. Serum leptin were assesed 6 times. Follicular fluid leptin levels were measured too. Results : there was no significant difference between the leptin levels in serum in both groups. Significant differences were found between the two groups in the evolution of serum leptin levels at all the times, exept the first step. Conclusions : serum leptin levels change significantly during IVF. Serum leptin levels do not correlate with estradiol levels, with the number of oocytes and embryos or endometrial thickness. Finally, serum and follicular fluid leptin do not represented a prognostic factor for the achivement of pregnacy in IVF
First-principles statistical mechanics study of the stability of a sub-nanometer thin surface oxide in reactive environments: CO oxidation at Pd(100)
Creators: name: Rogal, Jutta
name: Reuter, Karsten
name: Scheffler, Matthias
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We employ a multiscale modeling approach to study the surface structure and composition of a Pd(100) model catalyst in reactive environments. Under gas phase conditions representative of technological CO oxidation (~1 atm, 300-600 K) we find the system on the verge of either stabilizing sub-nanometer thin oxide structures or CO adlayers at the surface. Under steady-state operation this suggests the presence or continuous formation and reduction of oxidic patches at the surface, which could be key to understand the observable catalytic function.
description: 4 pages including 2 figures; related publications can be found at http://www.fhi-berlin.mpg.de/th/th.html
Διερεύνηση της αιτιολογίας της ιδιοπαθούς πνευμονικής ίνωσης
Creators: name: Μανίκα, Αικατερίνη Ι.
Publisher: name: Aristotle University of Thessaloniki
Year: 2005
Subjects: Idiopathic Pulmonary Fibrosis
Ιδιοπαθής πνευμονική ίνωση

description: Η ιδιοπαθής πνευμονική ίνωση είναι μια ειδική μορφή χρόνιας διάμεσης πνευμονικής ίνωσης, που περιορίζεται στον πνέυμονα και συνδέεται ιστολογικά με το πρότυπο της συνήθους διάμεσης πνευμονίας. Η αιτιολογία της είναι άγνωστη. Σκοπός της παρούσας μελέτης ήταν η διερεύνηση τηε ενδεχόμενης σχέσης της IPF με τους ιούς της οικογένειας του ερπητα και ιδιαίτερα με τον ιό Epstein-Barr(EBV). Για το σκοπό αυτό συλλέχθηκαν οροί αίματος και βρογχοκυψελιδικά εκπλύματα(BALF) από 69 ασθενείς(17 με IPF και 52 με άλλα πνευμονικά νοσήματα). Στους ορούς αίματος εφαρμόστηκαν η ανοσοενζυμική μέθοδος(ELISA) και η μέθοδος του έμμεσου ανοσοφθορισμού για ανίχνευση αντισωμάτων έναντι του ιού του απλού έρπητα τύπου 1, του ιού της ανεμοβλογιάς-έρπητα ζωστήρα, του κυτταρομεγαλο ιοϋ, του ανθρώπινου ερπητοϊού β και του EBV. Στα BALF έγινε προσπάθεια ανίχνευσης του γενετικού υλικού του EBV με αλυσιδωτή αντίδραση πολυμεράσης(PCR). Στα θετικά προϊόντα της αντίδρασης προσδιορίστηκε η αλληλουχία των βάσεων. Το 60% των ασθενών με IPF και το 25,5% των λοιπών ασθενών είχαν IgA αντισώματα έναντι του ΕBV(p=0,0032). Στον υπόλοιπο ορολογικό έλεγχο σημαντικές διαφορές μεταξύ ασθενών με IPF και με άλλα νοσήματα δεν παρατηρήθηκαν. Από τους 17 IPF το γενετικό υλικό του EBV ανιχνεύθηκε σε 3, ενώ στους υπόλοιπους 52 ασθενείς δεν ανιχνεύθηκε σε κανέναν(ρ=0,016). Τα ευρήματα της μελέτης συνηγορούν για αιτιολογική συσχέτιση της IPF με τον EBV και δίνουν το έναυσμα για νέες ερευνητικές προσπάθειες
description: Idiopathic pulmonary fibrosis(IPF) is a distinct form of chronic fibrosis interstial pneumonia limited to the lung and associated with the histologic appearance of usual interstial pneumonia. The etiology of the disease remains unclear. The aim of this study was to investigate the potential association between IPF and the human herpesviruses, particularly Epstein-Barr virus(EBV). Sera and bronchoalveolar lavage fluids(BALF) were collected from 17 patients with IPF and 52 with other pulmonary disorders. Enzyme immunoassay and indirect immunofluorescence tests were used in order to determine antibodies to Herpessimplex virus type 1, varicella-zoster virus, cytomegalovirus, Human Herpesvirus 6 and EBV. Polymerase chain reaction(PCR) was performed in order to investigate presence of EBV DNA in BALF. Positive PCR results were confirmed by noucletide sequencing. IgA antibodies to EBV were detected in 60% of IPF patients and in 25,5% of other patients(p=0,032). No other differences were observed between patients with IPF and patients with other diseases in the rest of the serological tests. EBV DNA was detected in the BALF of 3 patients with IPF but in none of the other patients(0,016). These results suggest the participation of EBV in the etiology of IPF and will hopefully promote further investigation on this subject
The Econometrics and Some Properties of Separable Matching Models
Creators: name: Galichon, Alfred
name: Salanié, Bernard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Econometrics (econ.EM)
subject: FOS: Economics and business

description: We present a class of one-to-one matching models with perfectly transferable utility. We discuss identification and inference in these separable models, and we show how their comparative statics are readily analyzed.
description: 10 pages
Κοινωνικός αποκλεισμός και ιδεολογία: η συμβολή του κυρίαρχου λόγου στην παρεμπόδιση ανάπτυξης και εφαρμογής στρατηγικών για την καταπολέμηση του κοινωνικού αποκλεισμού
Creators: name: Μαυρίδης, Χαράλαμπος Ν.
Publisher: name: Aristotle University of Thessaloniki
Year: 2005
Subjects: Κοινωνικός αποκλεισμός
Κυρίαρχη ιδεολογία
Social exclusion
Dominant ideology
Dominant discourse

description: Στόχος της παρούσας διατριβής ήταν να δείξει ότι ένας από τους σημαντικότερους παράγοντες στη μη καταπολέμηση του κοινωνικού αποκλεισμού είναι κυρίαρχη ιδεολογία, όπως αυτή εκφράζεται από τον κυρίαρχο λόγο. Μέθοδος : ανάλυση περιεχομένου και ερευνητικό μοντέλο βασισμένο στην αρχή των αιτιακών σχέσεων. Η έρευνα έδειξε ότι πράγματι ο κυρίαρχος λόγος τόσο ως λόγος της πολιτικής όσο και ως λόγος των επιστημόνων, συμβάλλει 1. στην αναπαραγωγή της υφιστάμενης κοινωνικής συγκρότησης 2. στην αποδοχή του φαινομένου 3. στη μη ανάπτυξη ενός πλασίου αποτελεσματικών λύσεων έδειξε επίσης ότι ο κυρίαρχος, ως κρατικός, λόγος για την εκπαίδευση διαμορφώνει ένα πλαίσιο οργάνωσης και λειτουργίας του λυκείου που ευνοεί την κοινωνική επιλογή και τον αποκλεισμό και ότι ο κυρίαρχος λόγος των πολιτικών και των επιστημόνων για την εκπαίδευση, δικαιολογεί και υποστηρίζει αυτό το πλαίσιο
description: The aim of the present dissertation was to prove that one of the major factors to the lack of combating of social exclusion is the dominant ideology, as this is uttered by the dominant discourse. Method : contents analysis and inquiring model depended on the principle of causal relations. The research pointed out that indeed the dominant discourse both as discourse of politics and scientists contributes : 1. to the reproduction of the existing social formation 2. to the acceptance of the phenomenon 3. to the lack of development of aframework of effective solutions. It also pointed that the dominant, as state, discourse for the education forms a framework of arranging and operation of the lyceum that favours this social choise and the exclusion and that the dominant discourse, of politicians and scientists, for education, justifies and supports this framework
Surface spin-flop transition in a uniaxial antiferromagnetic Fe/Cr superlattice induced by a magnetic field of arbitrary direction
Creators: name: Pini, M. G.
name: Rettori, A.
name: Betti, P.
name: Jiang, J. S.
name: Velthuis, S. G. E. te
name: Felcher, G. P.
name: Bader, S. D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We studied the transition between the antiferromagnetic and the surface spin-flop phases of a uniaxial antiferromagnetic [Fe(14 Å)/Cr(11 Å]$_{\rm x20}$ superlattice. For external fields applied parallel to the in-plane easy axis, the layer-by-layer configuration, calculated in the framework of a mean-field one-dimensional model, was benchmarked against published polarized neutron reflectivity data. For an in-plane field $H$ applied at an angle $ψ\ne 0$ with the easy axis, magnetometry shows that the magnetization $M$ vanishes at H=0, then increases slowly with increasing $H$. At a critical value of $H$, a finite jump in $M(H)$ is observed for $ψ<5^{\rm o}$, while a smooth increase of $M$ $vs$ $H$ is found for $ψ>5^{\rm o}$. A dramatic increase in the full width at half maximum of the magnetic susceptibility is observed for $ψ\ge 5^{\rm o}$. The phase diagram obtained from micromagnetic calculations displays a first-order transition to a surface spin-flop phase for low $ψ$ values, while the transition becomes continuous for $ψ$ greater than a critical angle, $ψ_{\rm max} \approx 4.75^{\rm o}$. This is in fair agreement with the experimentally observed results.
description: 24 pages, 7 figures
Νευροπροστατευτική δράση αντιοξειδωτικών και ανταγωνιστών των διεγερτικών αμινοξέων σε πειραματικό μοντέλο περιγεννητικής ασφυξίας
Creators: name: Παπαζήσης, Γεώργιος Α.
Publisher: name: Aristotle University of Thessaloniki
Year: 2005
Subjects: Περιγεννητική ασφυξία
Ιππόκαμπος
Δεφεροξαμίνη
Λαμοτριγίνη
Perinatal asphyxia
Hippocampus
Deferoxamine
Lamotrigine

description: Η περιγεννητική ασφυξία αποτελεί σημαντικό παράγοντα νοσηρότητας και θνητότητας στα νεογνά και τα παιδιά. Σκοπός της παρούσας πειραματικής μελέτης σε επίμυς ήταν η διερεύνηση της πιθανής νευροπροστατευτικής επίδρασης μιας αντιοξειδωτικής ουσίας(δεφεροζαμίνη-Dfo) και ενός ανταγωνιστή των διεγερτικών αμινοξέων(λαμοτριγίνη-Lam). Οι ουσίες αυτές αρχικά χορηγήθηκαν μεμονωμένα και στη συνέχεια συγχορηγήθηκαν. Με βάση τα αποτελέσματα προέκυψαν τα εξής συμπεράσματα. Η χορήγηση Dfo βελτίωσε τις ισολογικές αλλοιώσεις χωρίς να μεταβάλλει τις συγκεντρώσεις των αμινοξέων. Η χορήγηση λαμοτριγίνης είχε δοσοεξαρτώμενη βελτίωση στην ιστολογική εικόνα και τη συγκέντρωση των αμινοξέων. Η συγχορήγηση των ουσιών είχε νευροπροστατευτική επίδραση σε κάποιες περιοχές του ιπποκάμπου, η βελτίωση όμως που παρατηρήθηκε δεν ήταν μεγαλύτερη σε σχέση με τη μεμονωμένη χορήγηση των ουσιών, δηλ. δεν διαπιστώθηκε συνεργική ή αθροιστική δράση
description: Perinatal asphyxia remains a major cause of mortality and morbidity in infants and children. The purpose of our experimental study in rats was to investigate the neuroprotective effects of an autioxidant(deferoxamine-Dfo)and an antagonist of the excitatory aminoacids(lamotrigine-Lam). The substances were administered alone and in combination. On the basis of the results we reached the following conclusions : the administration of Lam the caused the histological damage whithout altering the concentration of the aminoacids. The administration of Lam caused a dosedependent improvement in the histological damage and the concentration of the aminoacids. The coadministration of both substances had neuroprotective effect in some regious of the hippocampus, but the improvement which was observed was not significant compaired to the adninistration of each substance separetely, that is to say, no additive action was evident
Η επίδραση της L-αργινίνης και απροτινίνης στο τραύμα ισχαιμίας-επαναιμάτωσης του εντέρου
Creators: name: Σπανός, Κωνσταντίνος Π.
Publisher: name: Aristotle University of Thessaloniki
Year: 2005
Subjects: Επαναιμάτωση
Μεσεντέριος
L-Αργινίνη
Απροτινίνη
Εντερο
Reperfusion
Intestinal
Mesenteric
L-arginine
Aprotinin

description: Η μελέτη της επίδρασης της L-αργινίνης και απροτινίνης, μενονωμένα ή σε συνδυασμό στο τραύμα ισχαιμίας-επαναιμάτωσης του εντέρου. μελετήθηκαν 20 χοίροι 20-25kgr. Χωρίστηκαν στις εξής ομάδες Α΄μάρτυρες, Β'όπου δόθηκε L-αργινίνη σε δόση 5mg/kg/min κατά τη φάση της ισχαιμίας, Γ, όπου δόθηκε απροτινίνη σε δόση 60/us 20.000u/hg και στάγδην έγχυση σε δόση 50u/ώρα και Δ, όπου δόθηκαν οι δύο ουσίες σε συνδυασμό. Μετρήθηκαν οι κυτοκίνες TNfa, IL-I, IL-6 στην περιφερική φλεβική κυκλοφορία και το πυλαίο αίμα. Μετρήθηκε η ροή στην άνω μεσεντέριο αρτηρία και μελετήθηκε ιστολογικά ο βλεννογόνος του λεπτού εντέρου. Αποτελέσματα : η L-αργινίνη και απροτινίνη ελάττωσε την έκλυση κυτοκινών, προκάλεσε αύξηση στην αιματική ροή της μεσεντέριας κυκλοφορίας και προκάλεσε μικρότερες ιστολογικές βλάβες
description: Objectives : the possible effects of L-arginine and aprotinin in mesenteric ischemia-rereperfusion injury in a porcine model. Methods : 20 pigs were studied; the animals were divided in 4 groups A, the control group, B; the L-arginine group, C, the aprotinin group and D the combination of L-arginine and aprotinin group. TNFa, IL-1, IL-6 was measured in the peripheral and portal circulation. Mesenteric blood flow was determinal. Histologia samples of small intestine were taken. Conclusions : The administration of L-arginine and aprotonin led to attenuation of cytokine levels, increase in mesenteric blood flow, and diminished histologia changes. No additive or synergistic effect of the two drugs was noticed
Μελέτη της αλληλεπίδρασης συστατικών της χρωματίνης με την εσωτερική πυρηνική μεμβράνη σε σωματικά και σπερματικά κύτταρα
Creators: name: Δρόσου, Βικτωρία Β.
Publisher: name: Aristotle University of Thessaloniki
Year: 2005
Subjects: Υποδοχέας της β λαμίνης
Ετεροχρωματίνη
Πρωταμίνη 1
Ιστόνη
Lamin b receptor(LBR)
Heterochromatin
Protamine 1

description: Στην εργασία αυτή μελετήθηκε η αλληλεπίδραση της εσωτερικής πυρηνικής μεμβράνης της χρωματίνης των σωματικών και σπερματικών κυττάρων. Βρέθηκε ότι ο υποδοχέας της β λαμίνης(LBR)-μια διαμεμβρανική πρωτεϊνη της εσωτερικής πυρηνικής μεμβράνης-αλληλεπιδρά με τις ιστόνες Η3 και Η4 μέσω μορίων RNA. Η θέση δέσμευσης του RNA είναι τα αμινοξέα 62 έως 92 του αμινοτελικού τμήματος του LBR. Ολα τα είδη του ευκαρυωτικού RNA που δοκιμάστηκαν δεσμεύονται στον LBR, ενώ το πυρηνικό RNA δεσμεύεται ακόμα και σε 750 mM kcl. Η φωσφορυλίωση της RS ακολουθίας του LBR παρεμποδίζει την δέσμευση μορίων RNA. Οσον αφορά στην αλληλεπίδραση του LBR με συστατικά της χρωματίνης των σπερματικών κυττάρων διαπιστώθηκε ότι η φωσφορυλιωμένη πρωταμίνη 1 δεσμεύεται στην RS ακολουθία του LBR. Επίσης, μελέτες ανοσοφθορισμού έδειξαν ότι ο LBR και η πρωταμίνη 1 εμφανίζουν την ίδια εντόπιση, στην περιφέρεια του πυρήνα, κατά τα αρχικά στάδια της σπερμιογένεσης
description: In this study, we investigated the interaction between chromatic and the inner nuclear membrane. We demonstrates that the binding of histones H3 and H4 to the N--terminal domain of LBR is mediated by small RNA molecules. The RN binding domain of LBR has been mapped to the region between amino acids 62 to 92. All kinds of eukaryotic RNAs(total RNA, tRNA, nuclear RNA) were able to associate with LBR, yet the binding of nuclear RNA persisted even at 750mM KCL. LBR phosphorylation by recombinant SRPK1 completely abolishes binding of RNA. Using in vitro binding assays we demonstrated that phosphorylated protamine 1 binds to the RS religion of LBR. Immunofluorescene microscopy studies of several isolated spermiogenic cells during the enlogation process clearly showed that protamine 1 and LBR exhibit the same peripheral distribution in the nucleus of enlonciaring spermatids
Stigma at work : the consequence of disability and gender inequality
Creators: name: Grenon, Gordon Lee
Publisher: name: University of British Columbia
Year: 2011

description: This thesis presents research conducted on work, income, and educational characteristics of disabled people in Canada. This research is specifically concerned with the comparison of gender inequality between the disabled population and the non-disabled population. The research question is 'what is the consequence of disability on gender inequality?'. Using survey data from the 1986 Health and Activity Limitations Survey (HALS) a series of statistical comparisons where made between the non-disabled and disabled populations across a wide range of social and economic characteristics. The statistical research presented includes both cross tabulations and regression analyses. The research concludes that the extent of gender inequality - 'the gender gap' - is comparable between the non-disabled and disabled populations. The stigma of disability does not appear to either diminish nor exacerbate gender inequality in paid work.
Chiral pion-nucleon dynamics in finite nuclei: spin-isospin excitations
Creators: name: Finelli, P.
name: Kaiser, N.
name: Vretenar, D.
name: Weise, W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The nuclear density functional framework, based on chiral dynamics and the symmetry breaking pattern of low-energy QCD, is extended to the description of collective nuclear excitations. Starting from the relativistic point-coupling Lagrangian previously introduced [Nucl. Phys. A770 (2006) 1], the proton-neutron (quasiparticle) random phase approximation is formulated and applied to investigate the role of chiral pion-nucleon dynamics in excitation modes involving spin and isospin degrees of freedom, e.g. isobaric analog states and Gamow-Teller resonances.
description: 17 pages, 6 figures, elsart class. Minor revisions, Nuclear Physics A in print
Μελέτη της επίδρασης του Bio-TENS στη συντηρητική θεραπευτική αντιμετώπιση των κρανιογναθικών διαταραχών
Creators: name: Ράλλης, Δημήτριος Γ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2005
Subjects: Διαδερματικός
Κρανιογναθικές διαταραχές
Transcutaneous
Craniomandicular disorders

description: Ο στόχος της κλινικής μας έρευνας ήταν η διερεύνηση της αποτελεσματικότητας της εφαρμογής του ΤΕΝS στη συντηρητική θεραπευτική αντιμετώπιση των διαφόρων συμπτωμάτων των κρανιογναθικών διαταραχών. Η μεθοδολογία που ακολουθήθηκε ήταν η εφαρμογή του TENS σε 37 ασθενείς με κρανιογναθικές διαταραχές. Τα χαρακτηριστικά της συσκευής με αντίστοιχα βύσματα και τα ηλεκτρόδια. Εφαρμόσαμε την υψηλής συχνότητας TENS με τις εξής παραμέτρους : συχνότητα 90Hz, εύρος παλμών 90μ sec, ένταση 10-30mA, διάρκεια εφαρμογής 30 λεπτά, 5 εφαρμογές για κάθε ασθενή. Τα αποτελέσματα ήταν η ελάττωση των συμπτωμάτων clicking, μυοπροσωπικού, χρονίους πονοκεφάλους, δυσκολία μάσησης, σφίξιμο δοντιών. Το συμπέρασμα είναι ότι ο TENS μπορεί να συμπεριλαμβάνεται σε ορισμένα συντηρητικά θεραπευτικά σχήματα αντιμετώπισης κρανιογναθικών διαταραχών
description: The aim of this clinical research was the exploration of the effectiveness, which causes the fitting TENS in the conservative theraupetic treatment of various symptoms of the craniomandicular disorders. The method used, was the fitting of TENS in 37 patiens. The parts of the mashine(TENS)are : the main apparatus, the connection cabels with their equivalant plugs and the electrods. The high-frequency TENS was used with the following parameters : frequency 90Hz, widing pulsation 90μsec, intensity 10-30mA, duration of using 30 minutes and 5 fitting to each patient. The results were : the decrease of symptoms such, as clicking, myofacial pain, chronic headaches, difficulty inchewing. The conclusions are that TENS can be included in some conservative therapeutic methods which deal craniomandicular disorders
Implications of Fritzsch-like lepton mass matrices
Creators: name: Randhawa, Monika
name: Ahuja, Gulsheen
name: Gupta, Manmohan
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using seesaw mechanism and Fritzsch-like texture 6 zero and 5 zero lepton Dirac mass matrices, detailed predictions for cases pertaining to normal/inverted hierarchy as well as degenerate scenario of neutrino masses have been carried out. All the cases considered here pertaining to inverted hierarchy and degenerate scenario of neutrino masses are ruled out by the existing data. For the normal hierarchy cases, the lower limit of m_{ν1} and of s_{13} as well as the range of Dirac-like CP violating phase δwould have implications for the texture 6 zero and texture 5 zero cases considered here.
description: 13 pages, 4 figures. Small changes to the previous version and a new reference added
Impact of magnetic activity on inferred stellar properties of main sequence Sun-like stars
Creators: name: Thomas, Alexandra E. L.
name: Chaplin, William J.
name: Basu, Sarbani
name: Rendle, Ben
name: Davies, Guy
name: Miglio, Andrea
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The oscillation frequencies observed in Sun-like stars are susceptible to being shifted by magnetic activity effects. The measured shifts depend on a complex relationship involving the mode type, the field strength and spatial distribution of activity, as well as the inclination angle of the star. Evidence of these shifts is also present in frequency separation ratios which are often used when inferring global properties of stars in order to avoid surface effects. However, one assumption when using frequency ratios for this purpose is that there are no near-surface perturbations that are non-spherically symmetric. In this work, we studied the impact on inferred stellar properties when using frequency ratios that are influenced by non-homogeneous activity distributions. We generate several sets of artificial oscillation frequencies with various amounts of shift and determine stellar properties using two separate pipelines. We find that for asteroseismic observations of Sun-like targets we can expect magnetic activity to affect mode frequencies which will bias the results from stellar modelling analysis. Although for most stellar properties this offset should be small, typically less than 0.5% in mass, estimates of age and central hydrogen content can have an error of up to 5% and 3% respectively. We expect a larger frequency shift and therefore larger bias for more active stars. We also warn that for stars with very high or low inclination angles, the response of modes to activity is more easily observable in the separation ratios and hence will incur a larger bias.
description: 13 pages, 8 figures
Αξιολόγηση των τροποποιήσεων της σπονδυλικής μονάδας και των παρακείμενων ανατομικών δομών κατά τη δισκεκτομή και σπονδυλοδεσία της ΑΜΣΣ: πειραματική-ιστοπαθολογική μελέτη
Creators: name: Τσιτσόπουλος, Παρμενίων Φ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2005
Subjects: Αυχενική μοίρα σπονδυλικής στήλης
Αυχενική σπονδυλοδεσία
Cervical spine
Cervical spine fusion

description: Στη μελέτη αυτή διερευνήθηκαν οι δομικές και ιστοπαθολογικές αλλοιώσεις που προκαλούνται στη σπονδυλική μονάδα και στις γύρω δομές κατά τη δισκεκτομή και σπονδυλοδεσία της ΑΜΣΣ. Για τη διεξαγωγή της μελέτης χρησιμοποιήθηκαν 13 ενήλικα πρόβατα, από τα οποία τα 12 υποβλήθηκαν σε χειρουργική επέμβαση δισκεκτομής και σπονδυλοδεσίας μετά από πρόσθια προσπέλαση της αυχενικής μοίρας. Τα πρόβατα θανατώθηκαν αμέσως μετά την ολοκλήρωση της επέμβασης. Κατόπιν, υποβλήθηκαν σε λεπτομερή ακτινοδιαγνωστικό έλεγχο(απλές ακτινογραφίες, αξονική τομογραφία, μαγνητική τομογραφία) και σε ιστοπαθολογική μελέτη. Από την ιστοπαθολογική μελέτη του μεσοσπονδύλου δίσκου και των τελικών πλακών διαπιστώθηκε νέκρωση και εκφύλιση των κυττάρων. Από την ιστοπαθολογική μελέτη των ιστοτεμαχίων στις αρθρικές επιφάνειες του επιπέδου εργασίας και των παρακείμενων επιπέδων, παρατηρήθηκε οίδημα μεταξύ των καλλογόνων ινών, κατακερματισμός αυτών, υπεραιμία και μικροαιμορραγίες. Γίνεται συσχέτιση των παραπάνω ευρημάτων με την ενδεχόμενη μετεγχειρητική κλινική συμπτωματολογία. Συμπερασματικά η εφαρμογή ατρωματικής τεχνικής με τους μικρότερους χειρισμούς και το κατάλληλο μόσχευμα θα αποτελούσε την σωστή επιλογή για το χειρούργο και για τον ασθενή
description: The objective of this study was to investigate the structural and histopathological changes in the spinal unit and its adjacent part caused during cervical spine surgery. Thirteen(13) sheep were used for the purspose of this study. Twelve(12) underwent cervical discectomy and fusion through anterior approach. Immeidately after the operation all animals were euthanized, their cervices were cut and sent for plain radiographs, CT and MRI scans. Furthermore their were processed and studied under light microscope. Histopathological examination in the intervertebral disc and plates demostrted degenerative changes and cell necrosis. The histopathological study of the working and adjacent levels facet joints revealed edema between the collagen fibers, congestion and microhaemorrhages. A correlation between those findings and the possible postoperative clinical picture is attempted. Surgical techniques involving lesser manipulations during the operation, combined with a suitable bioabsorbable implant may be the best choise for the surgeon and the patient as well
Coryphaenidae Rafinesque 1815
Creators: name: Golani, Daniel
name: Fricke, Ronald
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Coryphaenidae

description: CORYPHAENIDAE   Coryphaena equiselis Linnaeus 1758
 Gulf of Suez: ¯
 Gulf of Aqaba: ¯
 Red Sea main basin: Eritrea (Gallotti 1973).
 General distribution: Circumglobal in tropical and warm temperate seas.
 Coryphaena hippurus Linnaeus 1758
 Gulf of Suez: ¯
 Gulf of Aqaba: Jordan (Khalaf & Disi 1997).
 Red Sea main basin: Egypt (Klunzinger 1871).
 General distribution: Circumglobal in tropical and warm temperate seas.
description: Published as part of Golani, Daniel & Fricke, Ronald, 2018, Checklist of the Red Sea Fishes with delineation of the Gulf of Suez, Gulf of Aqaba, endemism and Lessepsian migrants, pp. 1-215 in Zootaxa 4509 (1) on page 87, DOI: 10.11646/zootaxa.4509.1.1, http://zenodo.org/record/2607566
A longer XMM-Newton look at I Zwicky 1: Distinct modes of X-ray spectral variability
Creators: name: Gallo, L. C.
name: Brandt, W. N.
name: Costantini, E.
name: Fabian, A. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The short-term spectral variability of the narrow-line Seyfert 1 galaxy I Zwicky 1 (I Zw 1) as observed in an 85 ks XMM-Newton observation is discussed in detail. I Zw 1 shows distinct modes of variability prior to and after a flux dip in the broad-band light curve. Before the dip the variability can be described as arising from changes in shape and normalisation of the spectral components. Only changes in normalisation are manifested after the dip. The change in the mode of behaviour occurs on dynamically short timescales in I Zw 1. The data suggest that the accretion-disc corona in I Zw 1 could have two components that are co-existing. The first, a uniform, physically diffuse plasma responsible for the "typical'' long-term (e.g. years) behaviour; and a second compact, centrally located component causing the rapid flux and spectral changes. This compact component could be the base of a short or aborted jet as sometimes proposed for radio-quiet active galaxies. Modelling of the average and time-resolved rms spectra demonstrate that a blurred Compton-reflection model can describe the spectral variability if we allow for pivoting of the continuum component prior to the dip.
description: 8 pages, 9 figures. Accepted by MNRAS
Supplementary document for Detection speed optimization of OI-RD microscope for ultra-high throughput screening - 6391709.pdf
Creators: name: Zhang, Hang
name: Xu, MengJing
name: Li, Haofeng
name: han, Mai
name: Mi, Lan
name: ma, jiong
name: Zhu, Xiangdong
name: Fei, Yiyan
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: detailed mathematical derivation and auxiliary data
Intrinsic piezoelectric ferromagnetism with large out-of-plane piezoelectric response in Janus monolayer $\mathrm{CrBr_{1.5}I_{1.5}}$
Creators: name: Guo, San-Dong
name: Guo, Xiao-Shu
name: Cai, Xiu-Xia
name: Mu, Wen-Qi
name: Ren, Wen-Cai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A two-dimensional (2D) material system with both piezoelectricity and ferromagnetic (FM) order, referred to as a 2D piezoelectric ferromagnetism (PFM), may open up unprecedented opportunities for intriguing physics. Inspired by experimentally synthesized Janus monolayer MoSSe from $\mathrm{MoS_2}$, in this work, the Janus monolayer $\mathrm{CrBr_{1.5}I_{1.5}}$ with dynamic, mechanical and thermal stabilities is predicted, which is constructed from synthesized ferromagnetic $\mathrm{CrI_3}$ monolayer by replacing the top I atomic layer with Br atoms. Calculated results show that monolayer $\mathrm{CrBr_{1.5}I_{1.5}}$ is an intrinsic FM half semiconductor with valence and conduction bands being fully spin-polarized in the same spin direction. Furthermore, monolayer $\mathrm{CrBr_{1.5}I_{1.5}}$ possesses a sizable magnetic anisotropy energy (MAE). By symmetry analysis, it is found that both in-plane and out-of-plane piezoelectric polarizations can be induced by a uniaxial strain in the basal plane. The calculated in-plane $d_{22}$ value of 0.557 pm/V is small. However, more excitingly, the out-of-plane $d_{31}$ is as high as 1.138 pm/V, which is obviously higher compared with ones of other 2D known materials. The strong out of-plane piezoelectricity is highly desirable for ultrathin piezoelectric devices. Moreover, strain engineering is used to tune piezoelectricity of monolayer $\mathrm{CrBr_{1.5}I_{1.5}}$. It is found that compressive strain can improve the $d_{22}$, and tensile strain can enhance the $d_{31}$. A FM order to antiferromagnetic (AFM) order phase transition can be induced by compressive strain, and the critical point is about 0.95 strain. That is to say that a 2D piezoelectric antiferromagnetism (PAFM) can be achieved by compressive strain, and the corresponding $d_{22}$ and $d_{31}$ are 0.677 pm/V and 0.999 pm/V at 0.94 strain, respectively.
description: 10 pages, 15 figures