cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Critical behavior of colloid-polymer mixtures in random porous media
Creators: name: Vink, R. L. C.
name: Binder, K.
name: Loewen, H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We show that the critical behavior of a colloid-polymer mixture inside a random porous matrix of quenched hard spheres belongs to the universality class of the random-field Ising model. We also demonstrate that random-field effects in colloid-polymer mixtures are surprisingly strong. This makes these systems attractive candidates to study random-field behavior experimentally.
description: 4 pages, 3 figures, to appear in Phys. Rev. Lett
The timing of breeding in double-crested cormorants (phalacrocorax auritus albociliatus) : its effects on clutch size, nestling growth, diet and survival
Creators: name: Sullivan, Terrance Michael
Publisher: name: University of British Columbia
Year: 2009

description: I examined the effects of a delayed time of breeding on clutch size, nestling growth and diet of Double-crested Cormorants (Phalacrocorax auritus albociliatus) at three colonies, Five Finger Island, Mandarte Island and the Fraser River, during the 1993 and 1994 breeding seasons. The effect of population changes was also monitored at these colonies and 4 additional colonies, Crofton, Chain Island, Christie Islet and Hudson Rocks, all situated within the Strait of Georgia As the breeding season progressed, asymptotic mass and condition index of the nestlings declined. In general, nestlings produced early in the season were heavier, had a slower growth rate and required more time to achieve their final mass than those produced later in the season. The last birds to breed were on the Fraser River (1993) where successful egg laying occurred approximately 3 months after the first colony (Five Finger Island) bred. The patterns of growth of the structural components differed at this colony from all others. The asymptotic length of both the culmen and tarsus, and the overall size of the nestlings increased as the season progressed. These parameters were also larger than at all other colonies. Nestling cormorants on Five Finger Island were fed mainly- Pacific Sandlance, nestlings on Mandarte Island were fed mainly blennies and those on the Fraser River were fed mainly Pacific Staghorn Sculpin and Shiner Perch. Colony differences probably reflect colony locations in the Strait of Georgia but may be influenced by the time of breeding. The quantity or quality of food delivered to the nestlings did not differ among colonies, except for the amount of lipids. Differences in nestling growth could not be explained by differences in the diet. To determine the effect of the timing of breeding on the changes in cormorant numbers, I modeled the dynamics of the population. Both the predicted and observed changes in the breeding population followed the same trend: at colonies where breeding occurred early in the season, there was an overall increase in the breeding populations while those that bred later in the season showed a decline. This trend was hypothesized to result from poor survival of the nestlings resulting in low recruitment into the breeding population.
AN INTEGRATED CALCAREOUS PLANKTON BIOSTRATIGRAPHIC SCHEME AND BIOCHRONOLOGY FOR THE MEDITERRANEAN MIDDLE MIOCENE
Creators: name: SPROVIERI, RODOLFO
name: BONOMO, SERGIO
name: CARUSO, ANTONIO
name: DI STEFANO, AGATA
name: DI STEFANO, ENRICO
name: MARIA FORESI, LUCA
name: IACCARINO, SILVIA
name: LIRER, FABRIZIO
name: MAZZEI, ROBERTO
name: SALVATORINI, GIANFRANCO
Publisher: name: Università degli Studi di Milano
Year: 2002

description: The relative position of 30 main bioevents  pertaining to calcareous nannofossils and planktonic foraminifera was identified in the time interval between 13.75 Ma and 10.50 Ma, based on the quantitative study of the those microfossils in three Mediterranean sections spanning the late Langhian – lower Tortonian stratigraphic interval. The events were correlated  to the astronomic target curve using a cyclostratigraphic approach, resulting in a very detailed biostratigraphic and biochronologic subdivision of the interval. The zonal scheme proposed by Fornaciari et al. (1996) was adopted for the calcareous nannofossils, but three subzones were identified in the MMN7 Zone. For the planktonic foraminifera reference is made to the zonal scheme recently proposed by Foresi et al. (1998), slightly modified in order to increase its biostratigraphic resolution. The age of all the zonal boundaries is reported.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 2
Experimental Characterization of Air-to-ground Propagation at mm-Wave Frequencies in Dense Urban Environment
Creators: name: Vitucci, Enrico M.
name: Semkin, Vasilii
name: Arpaio, Maximilian J.
name: Barbiroli, Marina
name: Fuschini, Franco
name: Oestges, Claude
name: Degli-Esposti, Vittorio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In the present study, a measurement setup utilizing mm-wave transceivers with steerable directive antennas, mounted on both a customized UAV and a ground station has been used to study Air-to-Ground (A2G) radio links and, more generally, full-3D mm-wave propagation in urban environment. We evaluate the double-directional characteristics of the channel by rotating the antennas, deriving Power-Angle Profiles at both link ends. Preliminary results provide useful understanding of A2G propagation, e.g. the influence of the antenna tilt angles, or the mechanisms allowing for the signal to propagate from street canyons to the air.
MARMARONIA ANGIOLINII, NEW GENUS AND NEW SPECIES OF BAKEVELLIIDAE (PTERIOIDA, BIVALVIA) FROM THE MIDDLE PERMIAN OF CHIOS (GREECE)
Creators: name: LARGHI, CRISTIANO
Publisher: name: Università degli Studi di Milano
Year: 2002

description: The Guadalupian (Middle Permian) "Gymnocodiacean Limestones" cropping out in the north-eastern part of the Greek island of Chios (eastern Aegean Sea) are amongst the most fossiliferous in the western Tethys. They contain rich assemblages of corals, brachiopods, molluscs, calcareous algae, foraminifers and ostracods. Scant attention was given till now to mollusc faunas compared with brachiopods and foraminifers. In the present paper the new genus Marmaronia, with type-species M. angiolinii n. sp., is established to distinguish some bivalves of the Bakevelliidae King, 1850, from the middle Guadalupian successions of the Marmaro locality in Chios Island. M. angiolinii n. gen. n. sp. is strongly inequivalve, with valves differing in convexity, umbo development and ornamentation. The left valve shows a radial furrow running from the anterior part of the umbonal region anteroventrally and is ornamented by strong radial costae; the right valve is ornamented by concentric sculpture and by thin rugae in the first growth stages of the posterior part of the shell. Both valves have a wide posterior wing. Two hypotheses concerning the epi- or endobyssate adaptation of Marmaronia are also discussed briefly in the present paper.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 3
On the Wiener-Hopf solution of water-wave interaction with a submerged elastic or poroelastic plate
Creators: name: Smith, M. J. A.
name: Peter, M. A.
name: Abrahams, I. D.
name: Meylan, M. H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Complex Variables (math.CV)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A solution to the problem of water-wave scattering by a semi-infinite submerged thin elastic plate, which is either porous or non-porous, is presented using the Wiener-Hopf technique. The derivation of the Wiener-Hopf equation is rather different from that which is used traditionally in water-waves problems, and it leads to the required equations directly. It is also shown how the solution can be computed straightforwardly using Cauchy-type integrals, which avoids the need to find the roots of the highly non-trivial dispersion equations. We illustrate the method with some numerical computations, focusing on the evolution of an incident wave pulse which illustrates the existence of two transmitted waves in the submerged plate system. The effect of the porosity is studied, and it is shown to influence the shorter-wavelength pulse much more strongly than the longer-wavelength pulse.
description: 25 pages, 6 figures
A High-Resolution Spectrum of the Highly Magnified Bulge G-Dwarf MOA-2006-BLG-099S
Creators: name: Johnson, Jennifer A.
name: Gaudi, B. Scott
name: Sumi, Takahiro
name: Bond, Ian A.
name: Gould, Andrew
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze a high-resolution spectrum of a microlensed G-dwarf in the Galactic bulge, acquired when the star was magnified by a factor of 110. We measure a spectroscopic temperature, derived from the wings of the Balmer lines, that is the same as the photometric temperature, derived using the color determined by standard microlensing techniques. We measure [Fe/H]=0.36 +/-0.18, which places this star at the upper end of the Bulge giant metallicity distribution. In particular, this star is more metal-rich than any bulge M giant with high-resolution abundances. We find that the abundance ratios of alpha and iron-peak elements are similar to those of Bulge giants with the same metallicity. For the first time, we measure the abundances of K and Zn for a star in the Bulge. The [K/Mg] ratio is similar to the value measured in the halo and the disk, suggesting that K production closely tracks alpha production. The [Cu/Fe] and [Zn/Fe] ratios support the theory that those elements are produced in Type II SNe, rather than Type Ia SNe. We also measured the first C and N abundances in the Bulge that have not been affected by first dredge-up. The [C/Fe] and [N/Fe] ratios are close to solar, in agreement with the hypothesis that giants experience only canonical mixing.
description: 42 pages, 14 figures, submitted to ApJ
Electronic and magnetic characterization of epitaxial CrBr$_3$ monolayers
Creators: name: Kezilebieke, Shawulienu
name: Silveira, Orlando J.
name: Huda, Md N.
name: Vaňo, Viliam
name: Aapro, Markus
name: Ganguli, Somesh Chandra
name: Lahtinen, Jouko
name: Mansell, Rhodri
name: van Dijken, Sebastiaan
name: Foster, Adam S.
name: Liljeroth, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The ability to imprint a given material property to another through proximity effect in layered two-dimensional materials has opened the way to the creation of designer materials. Here, we use molecular-beam epitaxy (MBE) for a direct synthesis of a superconductor-magnet hybrid heterostructure by combining superconducting niobium diselenide (NbSe$_2$) with the monolayer ferromagnetic chromium tribromide (CrBr$_3$). Using different characterization techniques and density-functional theory (DFT) calculations, we have confirmed that the CrBr$_3$ monolayer retains its ferromagnetic ordering with a magnetocrystalline anisotropy favoring an out-of-plane spin orientation. Low-temperature scanning tunneling microscopy (STM) measurements show a slight reduction of the superconducting gap of NbSe$_2$ and the formation of a vortex lattice on the CrBr$_3$ layer in experiments under an external magnetic field. Our results contribute to the broader framework of exploiting proximity effects to realize novel phenomena in 2D heterostructures.
THERMAL HISTORY OF THE CARNIC ALPS (NE ITALY-S. AUSTRIA) USING CAI ANALYSIS
Creators: name: PONDRELLI, MONICA
Publisher: name: Università degli Studi di Milano
Year: 2002

description: Thermal patterns of an area which underwent a polyphase deformation history such as the Carnic Alps were analyzed using the Colour Alteration Index (CAI) of conodonts in order to constrain some aspects of the metamorphic history of this part of the Southern Alps. Hercynian and alpine tectonothermal events were distinguished using CAI analysis.  The Hercynian event developed temperatures up to low metamorphic conditions. Alpine tectonogenesis did not produce thermal levels in excess of the diagenetic zone. Moreover, CAI patterns allow recognition and evaluation of a hydrothermal metamorphic overprint of Permo-Triassic or Oligocene age that was superimposed on the pre-existing regional metamorphic zonation.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 3
Η τεκτονική δομή του νοτίου τμήματος της χερσονήσου του Αγίου Ορους
Creators: name: Γεωργιάδης, Γεώργιος Αλεξάνδρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Περιροδοπική ζώνη
Ενδοχώρα
Σύγκρουση
Ρηγμάτωση
Βόρειο Αιγαίο
Circum Rhodope Belt
Hnterland
Collision
Transpression
Faulting
North Aegean

description: Η γεωλογική δομή του νοτίου τμήματος της χερσονήσου του Αγίου Όρους κυριαρχείται από ένα ασύμμετρο αντίμορφο με άξονα ελαφρά βυθιζόμενο προς τα ΝΔ και φορά προς τα ΒΒΔ και από μια ετερογενή, ΒΒΑ-ΝΝΔ διεύθυνσης, κατακόρυφη διατμητική ζώνη με αριστερόστροφη κίνηση οριζόντιας μετατόπισης. Αναγνωρίστηκαν πέντε τεκτονικά γεγονότα που επέδρασαν στην περιοχή μελέτης. Το πρώτο (D0) αναγνωρίζεται υπολειμματικά. Το δεύτερο τεκτονικό γεγονός DA αποτελεί ένα trasnpressional γεγονός που υπολογίζεται ότι ξεκινάει το Ηώκαινο σε πλαστικές συνθήκες (DAdu) και φτάνει μέχρι το Κάτω Μειόκαινο σε θραυσιγενείς συνθήκες (DAbr). Κατά το Κάτω - Μέσο Μειόκαινο η παραμόρφωση γίνεται transtensional (DB) με τον σ3 οριζόντιο σε ΒΔ-ΝΑ διεύθυνση και τον σ1 κατακόρυφο. Τα δύο επόμενα τεκτονικά γεγονότα (D1 και D2) είναι εφελκυστηκά με ΒΑ-ΝΔ και Β-Ν διεύθυνση εφελκυσμού αντίστοιχα και διάρκεια από το Άνω Μειόκαινο μέχρι και το Πλειόκαινο και από το Κάτω Πλειστόκαινο μέχρι σήμερα.
description: The geological structure of the southern part of the Athos peninsula is dominated by a SW-plunging antiform with NNW-vergence and a left-lateral heterogeneous shear zone of NE-SW strike. Five tectonic events were recognized to affect the study area. The first one (D0) is overprinted by the following ones and is recognized as relict. The second tectonic event DA is a transpressional one, which is considered to begin in Eocene at ductile conditions (DAdu) and continues until the Early Miocene at brittle conditions (DAbr). During the Early - Middle Miocene the deformation becomes transtensional (DB) with σ3 horizontal trending NW-SE and σ1 at vertical position. The next two tectonic events are a NE-SW trending extension (D1) and a N-S extension (D2) dated as Late Miocene - Pliocene and Early Pleistocene - present respectively.
The Evolution of Multicomponent Systems at High Pressures: VI. The Thermodynamic Stability of the Hydrogen-Carbon System: The Genesis of Hydrocarbons and the Origin of Petroleum
Creators: name: Kenney, J. F.
name: Kutcherov, Vladimir G.
name: Bendeliani, Nikolai A.
name: Alekseev, Vladimir A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The spontaneous genesis of hydrocarbons which comprise natural petroleum have been analyzed by chemical thermodynamic stability theory. The constraints imposed upon chemical evolution by the second law of thermodynamics are briefly reviewed; and the effective prohibition of transformation, in the regime of temperatures and pressures characteristic of the near-surface crust of the Earth, of biological molecules into hydrocarbon molecules heavier than methane is recognized. A general, first-principles equation of state has been developed by extending scaled particle theory (SPT) and by using the technique of the factored partition function of the Simplified Perturbed Hard Chain Theory (SPHCT). The chemical potentials, and the respective thermodynamic Affinity, have been calculated for typical components of the hydrogen-carbon (H-C) system over a range pressures between 1-100 kbar, and at temperatures consistent with those of the depths of the Earth at such pressures. The theoretical analyses establish that the normal alkanes, the homologous hydrocarbon group of lowest chemical potential, evolve only at pressures greater than approximately thirty kbar, excepting only the lightest, methane. The pressure of thirty kbar corresponds to depths of approximately 100 km. Special high-pressure apparatus has been designed which permits investigations at pressures to 50 kbar and temperatures to 2000 K, and which also allows rapid cooling while maintaining high pressures. The high-pressure genesis of petroleum hydrocarbons has been demonstrated using only the solid reagents iron oxide, FeO, and marble, CaCO3, 99.9% pure and wet with triple-distilled water.
THE ANISIAN MACROFLORA FROM THE NORTHERN DOLOMITES (KÜHWIESENKOPF/ MONTE PRÀ DELLA VACCA, BRAIES): A FIRST REPORT
Creators: name: BROGLIO LORIGA, CARMEN
name: FUGAGNOLI, ANNA
name: VAN KONIJNENBURG-VAN CITTERT, JOHANNA
name: KUSTATSCHER, EVELYN
name: POSENATO, RENATO
name: WACHTLER, MICHAEL
Publisher: name: Università degli Studi di Milano
Year: 2002

description: The knowledge of Triassic macroflora from the Dolomites mostly concerns the Ladinian, while literature data on Anisian plants are scarce. This gap is filled by the discovery, reported here, of a rich plant deposit from Kühwiesenkopf / Monte Prà della Vacca (Prags/Braies Dolomites). The fossils occur in a horizon, about 1 m thick, from the lower part of the Dont Formation, a basinal unit mostly constituted by hemipelagic, terrigenous-carbonatic sediments of Pelsonian - Illyrian age. The stratigrafic interval with the plant horizon is Pelsonian in age. A preliminary systematic analysis of the numerous and well preserved specimens has allowed the identification of at least 17 genera. The taxa belong primarily to the Pteridophyta (Anomopteris, Neuropteridium, Cladophlebis, Crematopteris, ?Marattiopsis), subordinately to the Cycadophyta (Bjuvia, Taeniopteris, Dioonitocarpidium, Pterophyllum / Nilssonia). Coniferophyta are represented by Voltzia, ?Voltzia and Albertia; the latter genus is recorded herein for the first time in the Middle Triassic of the Dolomites. Besides, two Lycophyta genera (?Isoetites, Lycophyta new taxon), three Pteridospermae genera (?Sagenopteris, Scytophyllum and Peltaspermum), and one Sphenophyta genus (Equisetites) have also been recognized.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 3
Versatile and Robust Transient Stability Assessment via Instance Transfer Learning
Creators: name: Seyedali Meghdadi
name: Liebman, Ariel
name: Bergmeir, Christoph
name: Tack, Guido
Publisher: name: Monash University
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences
subject: 90607 Power and Energy Systems Engineering (excl. Renewable Power)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: To support N-1 pre-fault transient stability assessment, this paper introduces a new data collection method in a data-driven algorithm incorporating the knowledge of power system dynamics. The domain knowledge on how the disturbance effect will propagate from the fault location to the rest of the network is leveraged to recognise the dominant conditions that determine the stability of a system. Accordingly, we introduce a new concept called Fault-Affected Area, which provides crucial information regarding the unstable region of operation. This information is embedded in an augmented dataset to train an ensemble model using an instance transfer learning framework. The test results on the IEEE 39-bus system verify that this model can accurately predict the stability of previously unseen operational scenarios while reducing the risk of false prediction of unstable instances compared to standard approaches.
Επίδραση της ηλιακής δραστηριότητας στην κυκλοφορία και το κλίμα της στρατόσφαιρας
Creators: name: Μήσιος, Στέργιος Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Ηλιακός κύκλος
Πλανητικά κύματα
Ροή θερμότητας
Solar cycle
Planetary wave
Eddy heat flux

description: Στην εργασία αυτή μελετάται η επίδραση του 11-ετούς ηλιακού κύκλου στην στρατόσφαιρα και στην μεσημβρινή της κυκλοφορία, με την χρήση μέσων μηνιαίων τιμών της κατακόρυφης κατανομής της θερμοκρασίας, του γεωδυναμικού ύψους, και της ταχύτητας του μεσημβρινού ανέμου. Τα στοιχεία που χρησιμοποιήθηκαν προέρχονται από τις αναλύσεις παρατηρήσεων NCEP/NCAR και ERA-40 του ECMWF και καλύπτουν χρονικά τους 3 τελευταίους ηλιακούς κύκλους. Ο κύριος σκοπός της εργασίας είναι η μελέτη των επιδράσεων του 11-ετούς ηλιακού κύκλου στο πλάτος των πλανητικών κυμάτων (κυματάριθμου1-PW1) το χειμώνα του Βορείου ημισφαιρίου. Επίσης παρουσιάζονται οι μεταβολές της μεσημβρινής ροής στροβίλων μεγάλης κλίμακας (meridional eddy heat flux) που πιθανώς σχετίζονται με τον 11-ετή ηλιακό κύκλο. Οι τιμές χωρίζονται ως προς τη φάση της σχεδόν διετούς κύμανσης με αποτέλεσμα το σήμα της ηλιακής δραστηριότητας να αντιστρέφεται.Τέλος γίνεται σύγκριση των αποτελεσμάτων με αντίστοιχα προερχόμενα από θεωρητική μελέτη με τη χρήση του MAECHAM4/CHEM, ενός πλήρως συζευγμένου μοντέλου Χημείας - Γενικής Κυκλοφορίας της Ατμόσφαιρας.
description: The influence of the 11-year solar cycle on the stratosphere and its meridional circulation is studied, using monthly mean temperature, geopotential height, and meridional wind data. These come from the reanalysis of NCEP/NCAR and ERA-40 (ECMWF), spanning over at least the last 3 solar cycles. The aim of the study is to investigate the 11-year solar cycle modulation of the mean amplitude of planetary wave number 1 (PW1) over the winter of Northern hemisphere. In addition the possible solar cycle effect on the extratropical meridional eddy heat flux and its role on the Brewer-Dobson circulation is presented. If the values are separated by the phase of Quasi Biennial Oscillation the solar signal is reversed.Finally a comparison is made to results obtained from a model study with the use of MAECHAM4/CHEM, a fully coupled Chemistry - General Circulation Model of the Atmosphere (Chemistry Climate Model - CCM).
MIDDLE TRIASSIC FORAMINIFERA FROM THE SECEDA CORE (DOLOMITES, NORTHERN ITALY)
Creators: name: MAURER, FLORIAN
name: RETTORI, ROBERTO
Publisher: name: Università degli Studi di Milano
Year: 2002

description: The assemblage of foraminifera in turbidite beds in Middle Triassic basinal deposits straddling the Anisian/Ladinian boundary interval was studied in 224 thin sections. The fauna consists mainly of shallow-water inhabitants, associated with calcareous hyaline foraminifera (Lagenina) of open marine environment. Due to a well established  biostratigraphy in the studied interval, the first and last appearance of some shallow water, benthic foraminifera can be assigned to the Mid Triassic ammonoid stratigraphy. The species Meandrospira dinarica Kochansky-Devidè & Pantic and Arenovidalina chialingchiagensis Ho are limited to the Reitzi ammonoid zone. The species Variostoma alta Kristan and Hoyenella gr. sinensis both do not superate the Curionii zone in age in the studied succession.  The biostratigraphic most important event occurs at the base of the Gredleri zone,  with the appearance of the family Involutinidae Bütschli, represented by the genera Lamelliconus and Aulotortus. The faunal composition is similar to those of neighbouring paleoprovinces, but generally a lower faunistical diversification compared to foraminiferal assemblages in the Anisian or Carnian is observed.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 3
Η αρχαία ελληνική γλώσσα και γραμματεία στο Λύκειο σήμερα: από τη θεωρία στην πράξη
Creators: name: Κατσαμάκα, Ουρανία Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Αρχαία ελληνικά
Αρχαία ελληνική γλώσσα και γραμματεία
Διδακτική αρχαίων (ελληνικών)
Διδασκαλία αρχαίων (ελληνικών)
Ancient greek language
Ancient greek language and literature
Ancient greek teaching
Ancient greek methodology

description: Τα Αρχαία Ελληνικά στο Λύκειο αντιμετωπίζονται συχνά από τους μαθητές με δυσαρέσκεια και αμφισβήτηση ως προς το αν και γιατί τους είναι χρήσιμα. Η συγκεκριμένη εργασία διερευνά τους σκοπούς, τα περιεχόμενα, τη μεθοδολογία και την αξιολόγηση του μαθήματος, έτσι όπως προκύπτουν μέσα από το θεσμικό πλαίσιο και τα επίσημα κανονιστικά κείμενα. Στη συνέχεια προσπαθεί να εντοπίσει πού και γιατί ένα μάθημα ωφέλιμο για τους μαθητές γίνεται ανούσιο και βαρετό. Η διερεύνηση αυτή γίνεται μέσα από τη σύγχρονη βιβλιογραφία και αρθρογραφία, αλλά και από συνεντεύξεις με εκπαιδευτικούς. Στο συγκεκριμένο μάθημα παρατηρείται διάσταση μεταξύ θεωρίας και πράξης, είτε λόγω εξωτερικών συνθηκών (π.χ. πίεση ύλης), είτε λόγω λανθασμένων μεθοδολογικών επιλογών των εκπαιδευτικών. Λύση σε αυτό το πρόβλημα μπορεί να αποτελέσει ο επαναπροσδιορισμός των στόχων του μαθήματος, ώστε να γίνουν πιο ρεαλιστικοί, αλλά και η επιμόρφωση των εκπαιδευτικών, ώστε να απομακρυνθούν από τον «παραδοσιακό» τρόπο διδασκαλίας.
description: Students tend to find Ancient Greek boring and doubt whether and why this subject is useful. This dissertation goes through the curriculum of this subject and tries to find why a subject so useful becomes meaningless and boring for the students. It also goes through books and articles written during the last 15 years on the subject, and also interviews with teachers who teach the subject. The problem is the divergence between theory and actual teaching because of either external factors (i.e. too many things to be taught in few years) or wrong methodology. Redefining the teaching goals of the subject of Ancient Greek, as well as further training of the teachers, so that they diverge from the "traditional" way of teaching could be a solution to the problem.
Human Computations in Citizen Crowds: A Knowledge Management Solution Framework
Creators: name: Kafi, Nadeem
name: Shaikh, Zubair Ahmed
name: Shaikh, Muhammad Shahid
Publisher: name: arXiv
Year: 2020
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computers and Society (cs.CY)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: KG (Knowledge Generation) and understanding have traditionally been a Human-centric activity. KE (Knowledge Engineering) and KM (Knowledge Management) have tried to augment human knowledge on two separate planes: the first deals with machine interpretation of knowledge while the later explore interactions in human networks for KG and understanding. However, both remain computer-centric. Crowdsourced HC (Human Computations) have recently utilized human cognition and memory to generate diverse knowledge streams on specific tasks, which are mostly easy for humans to solve but remain challenging for machine algorithms. Literature shows little work on KM frameworks for citizen crowds, which gather input from the diverse category of Humans, organize that knowledge concerning tasks and knowledge categories and recreate new knowledge as a computer-centric activity. In this paper, we present an attempt to create a framework by implementing a simple solution, called ExamCheck, to focus on the generation of knowledge, feedback on that knowledge and recording the results of that knowledge in academic settings. Our solution, based on HC, shows that a structured KM framework can address a complex problem in a context that is important for participants themselves.
CAELATICHTHYS GEN. N.: A NEW PALAEONISCIFORM FROM THE MIDDLE TRIASSIC OF NORTHERN ITALY AND CANTON TICINO (SWITZERLAND)
Creators: name: LOMBARDO, CRISTINA
Publisher: name: Università degli Studi di Milano
Year: 2002

description: A new genus of "palaeonisciformes", Caelatichthys gen. n., is described on the basis of a well preserved material from the Kalkschieferzone (Meride Limestone) of  Ca' del Frate (Viggiù, Varese) and Meride (Canton Ticino, Switzerland). This small sized fish, with elongate-fusiform body, is characterized by a dermosphenotic in contact with the ventral margin  of the dermopterotic, the absence of contact of dermopterotic+dermosphenotic and the nasal bone, the lack of supraorbital bones, the presence of 4-5 infraorbital elements and small premaxilla meeting at the mid-line. Two species were recognized within this genus: C. nitens gen. n., sp. n. and C. meridensis gen. n. sp. n., each exclusive of a single locality. The two species differ in the development of dermal bone ornamentation, in specimens of the same size, and mainly in the pattern of the fulcra of the anal fin. This character cannot be ascribed to sexual dimorphism, as the two fishes showing the two kinds of anal fin were never found together in the same assemblage. The existence of two species of this new genus confirms the great variability of the faunal composition of the different fossiliferous levels of the Kalkschieferzone, with eight species described formally and other whose study is in progress. The good state of preservation of several specimens from Ca' del Frate also made it possible to reconstruct the growth stages of C. nitens n. gen. n. sp.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 3
UNLOCKING THE GENETIC CODE - FROM QUANTUM COMPUTING TO 3D-PRINTED TISSUES, EXPLORING THE MULTIFACETED FRONTIERS OF GENETIC ENGINEERING AND THERAPEUTICS
Creators: name: Brandl, Edenilson
Publisher: name: Zenodo
Year: 2024
Subjects: Genetic code
Bioprinting
Quantum computing
Gene therapy
Immune system regulation
Comparative genomics
3D printing
Chimeric genes
Non-coding RNA
Precision gene engineering

description: This comprehensive article delves into the intricate realms of genetic code exploration, spanning from the three-dimensional architecture of DNA to recent advancements in bioprinting, quantum computing, and gene therapy. The narrative unfolds across diverse domains such as immune system regulation, genomic studies, comparative genomics, and chimeric gene engineering. The article not only highlights the exciting opportunities presented by these advancements but also addresses critical challenges associated with quantum computing, precision gene therapies, and 3D-printed tissues. Through a multidimensional lens, it explores the convergence of cutting-edge technologies, offering insights into the future of genetic research and therapeutic applications.

 

Dieser umfassende Artikel befasst sich mit den komplizierten Bereichen der Erforschung des genetischen Codes und reicht von der dreidimensionalen Architektur der DNA bis hin zu jüngsten Fortschritten im Bioprinting, Quantencomputer und Gentherapie. Die Erzählung erstreckt sich über verschiedene Bereiche wie die Regulierung des Immunsystems, Genomstudien, vergleichende Genomik und chimäre Gentechnik. Der Artikel beleuchtet nicht nur die spannenden Möglichkeiten, die diese Fortschritte bieten, sondern befasst sich auch mit kritischen Herausforderungen im Zusammenhang mit Quantencomputern, Präzisions-Gentherapien und 3D-gedruckten Geweben. Aus einer mehrdimensionalen Perspektive erforscht es die Konvergenz modernster Technologien und bietet Einblicke in die Zukunft der Genforschung und therapeutischen Anwendungen.
Transcription of "Frog, Where Are You?"
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-130220-07: Transcription of the narration of "Frog, Where Are You?" by Mercer Mayer, file VP-231108-01, from 4:18 to the end of the file.
The role of AGN in the colour transformation of galaxies at redshifts z~1
Creators: name: Georgakakis, A.
name: Nandra, K.
name: Yan, R.
name: Willner, S. P.
name: Lotz, J. M.
name: Pierce, C. M.
name: Cooper, M. C.
name: Laird, E. S.
name: Koo, D. C.
name: Barmby, P.
name: Newman, J. A.
name: Primack, J. R.
name: Coil, A. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We explore the role of AGN in establishing and/or maintaining the bimodal colour distribution of galaxies by quenching their star-formation and hence, causing their transition from the blue to the red cloud. Important tests for this scenario include (i) the X-ray properties of galaxies in the transition zone between the two clouds and (ii) the incidence of AGN in post-starbursts, i.e. systems observed shortly after (<1Gyr) the termination of their star-formation. We perform these tests by combining deep Chandra observations with multiwavelength data from the AEGIS survey. Stacking the X-ray photons at the positions of galaxies (0.4
description: Accepted for publication in MNRAS
Mapping out the spin fluctuations in Co-doped LaFeAsO single crystals by NMR
Creators: name: Lepucki, Piotr
name: Havemann, Raphael
name: Dioguardi, Adam P.
name: Scaravaggi, Francesco
name: Wolter-Giraud, Anja U. B.
name: Kappenberger, Rhea
name: Aswartham, Sai
name: Wurmehl, Sabine
name: Büchner, Bernd
name: Grafe, Hans-Joachim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We determine the phase diagram of LaFe$_{1-x}$Co$_x$AsO single crystals by using nuclear magnetic resonance (NMR). Up to a nominal doping of $x=0.03$, it follows the phase diagram for F-doped polycrystals. Above $x=0.03$, the F-doped samples become superconducting, whereas for Co-doping the structural and magnetic transitions can be observed up to $x=0.042$, and superconductivity occurs only for higher doping levels and with reduced transition temperatures. For dopings up to $x=0.056$, we find evidence for short-range magnetic order. By means of relaxation-rate measurements, we map out the magnetic fluctuations that reveal the interplay of nematicity and magnetism. Above the nematic ordering, the spin fluctuations in LaFe$_{1-x}$Co$_x$AsO are identical to those in Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$, suggesting that nematicity in LaFeAsO is a result of the fluctuating spin density wave as well.
LATE TRIASSIC (LATE NORIAN-RHAETIAN) RADIOLARIANS FROM THE ANTALYA NAPPES, CENTRAL TAURIDES, SOUTHERN TURKEY
Creators: name: KAGAN TEKIN, UGUR
Publisher: name: Università degli Studi di Milano
Year: 2002

description: The Hocaköy section measured from the Alakirçay Nappe (middle nappe) of the Antalya Nappes contain rich radiolarian fauna ranging from late Norian (Late Triassic) to middle-late Cenomanian (mid Cretaceous). At the basal part of the section, the Late Triassic (late Norian-Rhaetian) Gökdere Formation is characterized by gray to beige cherty limestone at the base and pinkish red chert- gray to beige limestone alternation at the top, with moderately to well-preserved radiolarians in the red chert beds. The overlying Jurassic - Middle Cretaceous Hocaköy Radiolarite is mainly represented by chert-mudstone alternations with some limestone interlayers. Radiolarians of the Gökdere Formation can be well correlated with that of the fauna from the Mino Terrane, central Japan and the fauna from the Queen Charlotte Islands, British Columbia, Canada. Four radiolarian zones from central Japan are recognized in the fauna obtained from Gökdere Formation such as “Praemesosaturnalis multidentatus Lowest Occurrence Zone (TR8A)” (late Norian), “Praemesosaturnalis pseudokahleri Lowest Occurrence Zone (TR8B)” (late Norian), ? “ Skirt F lowest Occurrence Zone (TR8C)” (late Norian-Rhaetian) and partly “Haeckelicyrtium breviora Taxon Range Zone (TR8D)” (Rhaetian). In comparison with the Queen Charlotte fauna, the two zones “Betraccium deweveri Zone” (late Norian) and “Proparvicingula moniliformis Zone” (early Rhaetian) are also encountered in the Gökdere Formation. Radiolarians of the uppermost part of the Gökdere Formation indicate that “Globolaxtorum tozeri Zone” defined in Queen Charlotte Islands corresponding to the late Rhaetian, is not present in the section. Five new taxa, Capnuchosphaera okayi, Bistarkum rhaeticum, Praemesosaturnalis heilongjiangensis aksekiensis, P. nobleae, Veghicyclia sanfilippoae were determined within the late Norian-Rhaetian radiolarian fauna of the Gökdere Formation in Hocaköy section.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 3
Production efficiency of Feshbach molecules in fermion systems
Creators: name: Dobrescu, B. E.
name: Pokrovsky, V. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a consistent nonequilibrium theory for the production of molecular dimers from a two-component quantum-degenerate fermion atomic gas, via a linear downward sweep of the magnetic field across a Feshbach resonance. This problem raises interest because it is presently unclear as to why deviations from the universal Landau-Zener formula for the transition probability at two-level crossing are observed in the experimentally measured production efficiencies. We show that the molecular conversion efficiency is represented by a power series in terms of a dimensionless parameter which, in the zero-temperature limit, depends solely on the initial gas density and the Landau-Zener parameter. Our result reveals a hindrance of the canonical Landau-Zener transition probability due to many-body effects, and presents an explanation for the experimentally observed deviations [K.E. Strecker \textit{et al.}, Phys. Rev. Lett. {\bf 91}, 080406 (2003)].
description: 4 pages, 1 figure
APTIAN TO CAMPANIAN CALCAREOUS NANNOFOSSILS BIOSTRATIGRAPHY FROM THE BOTTACCIONE SECTION, GUBBIO, CENTRAL ITALY
Creators: name: TREMOLADA, FABRIZIO
Publisher: name: Università degli Studi di Milano
Year: 2002

description: Late Aptian-Campanian biostratigraphic investigations performed on calcareous nannofossils provided a refined stratigraphic resolution  of the Scisti a Fucoidi and Scaglia Formations in the Bottaccione section (Umbria-Marche Basin, Central italy). Additional bioevents such as the Last Occurrence (LO) of both Assipetra infracretacea larsonii and Rucinolithus terebrodentarius youngii and the First Occurrences (FOs) of Pararhabdolithus achlyostaurion and large Biscutum constans were detected and might be used to refine the Late Aptian-Albian biostratigraphy at low latitudes.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 108, No 3
Lunar Gravitational-Wave Antenna
Creators: name: Harms, Jan
name: Ambrosino, Filippo
name: Angelini, Lorella
name: Braito, Valentina
name: Branchesi, Marica
name: Brocato, Enzo
name: Cappellaro, Enrico
name: Coccia, Eugenio
name: Coughlin, Michael
name: Della Ceca, Roberto
name: Della Valle, Massimo
name: Dionisio, Cesare
name: Federico, Costanzo
name: Formisano, Michelangelo
name: Frigeri, Alessandro
name: Grado, Aniello
name: Izzo, Luca
name: Marcelli, Augusto
name: Maselli, Andrea
name: Olivieri, Marco
name: Pernechele, Claudio
name: Possenti, Andrea
name: Ronchini, Samuele
name: Serafinelli, Roberto
name: Severgnini, Paola
name: Agostini, Maila
name: Badaracco, Francesca
name: Betti, Lorenzo
name: Civitani, Marta Maria
name: Collette, Christophe
name: Covino, Stefano
name: Dall'Osso, Simone
name: D'Avanzo, Paolo
name: Di Giovanni, Matteo
name: Focardi, Mauro
name: Giunchi, Carlo
name: van Heijningen, Joris
name: Khetan, Nandita
name: Melini, Daniele
name: Mitri, Giuseppe
name: Mow-Lowry, Conor
name: Naponiello, Luca
name: Noce, Vladimiro
name: Oganesyan, Gor
name: Pace, Emanuele
name: Paik, Ho Jung
name: Pajewski, Alessandro
name: Palazzi, Eliana
name: Pallavicini, Marco
name: Pareschi, Giovanni
name: Sharma, Ashish
name: Spada, Giorgio
name: Stanga, Ruggero
name: Tagliaferri, Gianpiero
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Monitoring of vibrational eigenmodes of an elastic body excited by gravitational waves was one of the first concepts proposed for the detection of gravitational waves. At laboratory scale, these experiments became known as resonant-bar detectors first developed by Joseph Weber in the 1960s. Due to the dimensions of these bars, the targeted signal frequencies were in the kHz range. Weber also pointed out that monitoring of vibrations of Earth or Moon could reveal gravitational waves in the mHz band. His Lunar Surface Gravimeter experiment deployed on the Moon by the Apollo 17 crew had a technical failure rendering the data useless. In this article, we revisit the idea and propose a Lunar Gravitational-Wave Antenna (LGWA). We find that LGWA could become an important partner observatory for joint observations with the space-borne, laser-interferometric detector LISA, and at the same time contribute an independent science case due to LGWA's unique features. Technical challenges need to be overcome for the deployment of the experiment, and development of inertial vibration sensor technology lays out a future path for this exciting detector concept.
description: 29 pages, 17 figures
Electrocharged facepiece respirator fabrics using common materials
Creators: name: Bandi, M. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Face masks in general, and N95 filtering facepiece respirators (FRs) that protect against SARS-Cov-2 virion in particular, have become scarce during the ongoing COVID-19 global pandemic. This work presents practical design principles for the fabrication of electrocharged filtration layers employed in N95 FRs using commonly available materials and easily replicable methods. The input polymer is polypropylene or polystyrene, and can include discarded plastic containers of these materials, and the fabrication setup is based on the cotton candy (CC) principle. The primary parameters underlying the CC principle are translated to simple design rules that allow anyone to construct their own fabrication system from common parts, or employ a commercial cotton candy machine with minimal modifications. Finally, basic characterization results for structural and filtration properties of electrocharged fabrics made using the CC principle are detailed.
description: 18 pages, 11 figures, 4 tables. Electronic supplementary material is available online at https://doi.org/10.6084/m9.figshare.c.5217324
Research Program towards Observation of Neutrino-Nucleus Coherent Scattering
Creators: name: Wong, Henry T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The article describes the research program pursued by the TEXONO Collaboration towards an experiment to observe coherent scattering between neutrinos and the nucleus at the power reactor. The motivations of studying this process are surveyed. In particular, a threshold of 100-200 eV has been achieved with an ultra-low-energy germanium detector prototype. This detection capability at low energy can also be adapted to conduct searches of Cold Dark Matter in the low-mass region as well as to enhance the sensitivities in the study of neutrino magnetic moments.
description: 5 pages, 8 figures ; Proceedings of TAUP-2005 Workshop, Spain, 2005. Updated on 2006/9/15 for Proceedings of Neutrino-2006 Conference, Santa Fe, 2006
2020SEITConf_N8_Paper119 (1).pdf
Creators: name: Oluwatobi Kushimo
name: Ibidiran, Raphael
name: Jesudunsin Ijitona
Publisher: name: figshare
Year: 2021
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 80501 Distributed and Grid Systems
subject: FOS: Computer and information sciences
subject: 120402 Engineering Design Knowledge
subject: FOS: Other engineering and technologies
subject: 99999 Engineering not elsewhere classified

description: Design and Construction of an Advanced Metering Infrastructure (AMI) utilizing 30-300 V DC input within a SMART microgrid
Design and Development of a mobile application for real-time monitoring of energy usage, energy
exhaustion alerts, and online payment
Formation and evolution of early-type galaxies. II. Models with quasi-cosmological initial conditions
Creators: name: Merlin, Emiliano
name: Chiosi, Cesare
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this study, with the aid of N-Body simulations based on quasi-cosmological initial conditions, we have followed the formation and evolution of two models of early-type galaxies, from their separation from global expansion of the Universe to their collapse to virialized structures, the formation of stars and subsequent nearly passive evolution. The cosmological background we have considered is the Standard CDM. The models have significantly different nitial total mass. Particular care has been paid to the star formation process, heating and cooling of gas, and chemical enrichment. In both models star formation is completed within the first Gyrs of evolution. The structural properties of the present-day models are in good agreement with current observations. The chemical properties, mean metallicity and metallicity gradients also agree with available observational data. Finally, conspicuous galactic winds are found to occur. The models conform to the so-called revised monolithic scheme, because mergers of substructures have occurred very early in the galaxy life. Our results agree with those obtained in other similar recent studies, thus strengthening the idea that the revised monolithic scheme is the right trail to follow in the forest of galaxy formation and evolution.
description: 21 pages, 19 figures, 3 tables. To be published on Astronomy & Astrophysics (accepted April 12, 2006)
The secular evolution of a uniform density star cluster immersed in a compressible galactic tidal field
Creators: name: Ivanov, P. B.
name: Lin, D. N. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Nuclear stellar clusters are common in the center of galaxies. We consider the possibility that their progenitors assumed to be globular clusters may have formed elsewhere, migrated to and assembled near their present location. The main challenge for this scenario is whether globular clusters can withstand the tidal field of their host galaxies. Our analysis suggests that provided the mass-density distribution of background potential is relatively shallow, as in some galaxies with relatively flat surface brightness profiles, the tidal field near the center of galaxies may be shown to be able to compress rather than disrupt a globular cluster at a distance from the center much smaller than the conventionally defined `tidal disruption radius', $r_t$. To do so, we adopt a previously constructed formalism and consider the secular evolution of star clusters with a homogeneous mass density distribution. We analytically solve the secular equations in the limit that the mass density of stars in the galactic center approaches a uniform distribution. Our model indicates that a star cluster could travel to distances much smaller than $r_t$ without disruption, thus potentially contributing to the formation of the nuclear cluster. However, appropriate numerical N-body simulations are needed to confirm our analytic findings.
description: Accepted for publication in The Astrophysical Journal