cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The politics of aestheticism in the late victorian period
Creators: name: Καναράκης, Ιωάννης Ε.
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Ρομαντισμός
Βρετανικός εμπειρισμός
Γερμανικός ιδεαλισμός
British empiricism
German idealism

description: Η θεωρία της εξέλιξης μαζί με τον χεγκελιανό ιστορικισμό του τέλους του 19ου αιώνα έχουν ως αντίκτυπο την εμφάνιση μιας νέας θεωρίας των πραγμάτων, που συμφιλιώνει τον βρετανικό εμπειρισμό με τον γερμανικό ιδεαλισμό. Μέσα σε αυτό το πλαίσιο η παρούσα μελέτη επιχειρεί να διερευνήσει τη σύνθεση του συγκεκριμένου και του αφηρημένου όπως διατίνει ολόκληρο το έργο του Πεϊτερ. Εξετάζοντας βέβαια το πεϊτεριανό μοντέλο υπό ένα διεστημονικό πρίσμα, η εργασία αυτή ρίχνει άπλετο φως στην αδιαλεύκαντη σχέση του Εστέτ με την Καντιανή και Ηρακλειτιανή φιλοσοφία, η οποία ακριβώς αποτελεί και τον πυρήνα του παραπάνω συνθετικού πρπγράμματος. Συστηματικοποιώντας τις φιλοσοφικές και ιστορικές αναφορές του Πεϊτερ στα προηγούμενα δύο ρεύματα, η προσέγγιση μου αποτελεί ένα οργανωμένο αλλά συνάμα καινοτόμο πλαίσιο ανάλυσης του οράματος του Πέϊτερ, που ουσιαστικά επιδιώκει να συνενώσει στο όνομα της Ηρακλεϊτιανής και Καντιανής σύνθεσης της επαγωγής και της παραγωγής, το ρομαντισμό με τη σύγχρονη επιστήμη, έτσι ώστε να επιφέρει την αρμονία ανάμεσα στην παράδοση και τη "πρόοδο"
description: During the last quarter of the 19th century, the profound consolidation of the Idea of evolution in the victorian imaginary, along with the spread of Hegelian historicism, gave birth to a new cultural viewpoint that strove to reconcile british empiricism and german idealism. The purpose of this study is to explore the way Pater responded to this intellectual climate trough the synthesis that the promoted between the abstract abd the concrete. My intention is to adpress Pater's model in the light of an inter-disciplinary approach, considering his hitherto unexplored relation to Heraclitean and Kantian philosophy, which comprises the core, as i argue of this program. By systemazising the philosophical and historical implications of Pater's debt to these doctrines, my approach provides a series of fresh insights, suggesting a coherent framework within which his vision can be contextualised, historicized and analysed as an attempt to realign-in the name of Heraclitean and Kantian synthesis-romanticism and contemporary science in order to achieve a form of balance between the forces of tradition and progress
Age distribution of young clusters and field stars in the SMC
Creators: name: Chiosi, E.
name: Vallenari, A.
name: Held, E. V.
name: Rizzi, L.
name: Moretti, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we discuss the cluster and field star formation in the central part of the Small Magellanic Cloud. The main goal is to study the correlation between young objects and their interstellar environment. The ages of about 164 associations and 311 clusters younger than 1 Gyr are determined using isochrone fitting. The spatial distribution of the clusters is compared with the HI maps, with the HI velocity dispersion field, with the location of the CO clouds and with the distribution of young field stars. The cluster age distribution supports the idea that clusters formed in the last 1 Gyr of the SMC history in a roughly continuous way with periods of enhancements. The two super-shells 37A and 304A detected in the HI distribution are clearly visible in the age distribution of the clusters: an enhancement in the cluster formation rate has taken place from the epoch of the shell formation. A tight correlation between young clusters and the HI intensity is found. The degree of correlation is decreasing with the age of the clusters. Clusters older than 300 Myr are located away from the HI peaks. Clusters and associations younger than 10 Myr are related to the CO clouds in the SW region of the SMC disk. A positive correlation between the location of the young clusters and the velocity dispersion field of the atomic gas is derived only for the shell 304A, suggesting that the cloud-cloud collision is probably not the most important mechanism of cluster formation. Evidence of gravitational triggered episode due to the most recent close interaction between SMC and LMC is found both in the cluster and field star distribution.
description: 15 pages, 24 figures, A&A accepted
Electric field induced predissociation of molecular iodine
Creators: name: Zhou, Xiang
Publisher: name: University of British Columbia
Year: 2010

description: Electric field induced predissociation of the B ³∏₀[formula omitted] electronic state of molecular iodine has been investigated. The flourescence spectra of I₂ , corresponding to the upper vibrational quantum mumber v'= 4 to v'= 10 have been recorded with and without a high electric field applied. Because these levels have a large natural predissociation, a specially designed high voltage cell has been built and electric fields up to 140kV/cm have been applied in order to observe the induced predissociation. By combining our results with the previous work by Dalby et al.[10] (from v'= 10 to v'= 22), we have the most complete predissociation data for I₂ . Both numerical and semiclassical treatments have been used to analyse the data. The form of the interacting repulsive potential curve, ³∏₁[formula omitted], has been revised.
Geometric parametrisation of Lagrangian Descriptors for 1 degree-of-freedom systems
Creators: name: Remi, Pedenon-Orlanducci
name: Timoteo, Carletti
name: Anne, Lemaitre
name: Jerome, Daquin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Lagrangian Descriptors (LDs) are scalar quantities able to reveal separatrices, manifolds of hyperbolic saddles, and chaotic seas of dynamical systems. A popular version of the LDs consists in computing the arc-length of trajectories over a calibrated time-window. Herein we introduce and exploit an intrinsic geometrical parametrisation of LDs, free of the time variable, for 1 degree-of-freedom Hamiltonian systems. The parametrisation depends solely on the energy of the system and on the geometry of the associated level curve. We discuss applications of this framework on classical problems on the plane and cylinder, including the cat's eye, 8-shaped and fish-tail separatrices. The developed apparatus allows to characterise semi-analytically the rate at which the derivatives of the geometrical LDs become singular when approaching the separatrix. For the problems considered, the same power laws of divergence are found irrespective from the dynamical system. Some of our results are connected with existing estimates obtained with the temporal LDs under approximations. The geometrical formalism provides alternative insights of the mechanisms driving this dynamical indicator.
description: v3. Final version in agreement with the published version (In: Pinto CM (ed) Nonlinear Dynamics and Complexity: Mathematical Modelling of Real-World Problems, Springer International Publishing, pp 221-238) v2. Accepted for publication. Minor edits. 14 pages, 10 figures. Comments and feedback are welcome v1. 14 pages, 10 figures. Comments and feedback are welcome
Μελέτη της λεπτίνης σε φυσιολογικές κυήσεις μετά τον τοκετό και στις επανειλημμένες αυτόματες αποβολές
Creators: name: Γιακουμάκος, Δημήτριος Γρ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: subject: Δείκτες μάζας σώματος
subject: Βλαστοκύστη-εμφύτευση
subject: Αναπαραγωγή
subject: Κύηση/Λοχεία
subject: Blastocyst/implantation
subject: Reproduction
subject: FOS: Medical biotechnology
subject: Pregnacy

description: Η μελέτη αυτή σχεδιάστηκε με σκοπό τη διερεύνηση των αιτιών των καθ'έξιν αποβολών και τη σύγκριση των επιπέδων της λεπτίνης του ορού μεταξύ των γυναικών αυτών και γυναικών με φυσιολογικές κυήσεις και ζώντα τέκνα χωρίς αποβολές. Σχεδιάστηκε επίσης με σκοπό να αξιολογηθεί η πορεία των επιπέδων της λεπτίνης του ορού κατά τα τρία τρίμηνα φυσιολογικής κύησης και κατά τη λοχεία. Αναζητήθηκε τέλος η ύπαρξη συσχέτισης ανάμεσα στα επίπεδα λεπτίνης ορού και του Δείκτη Μάζας Σώματος-ΒΜΙ των παραπάνω γυναικών
description: The aim of this study was to investigate the reasons of recurrent miscarriages and compare the serun leptin levels among women with such history and women normal reproductive history. The study was also designed to determine the serum leptin levels in each trimester of normal pregnacy and in the postpartum period and the correlation between leptin levels and BMI of all previous women
On a Batalin--Vilkovisky operator generating higher Koszul brackets on differential forms
Creators: name: Shemyakova, Ekaterina
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We introduce a formal $\hbar$-differential operator $Δ$ that generates higher Koszul brackets on the algebra of (pseudo)differential forms on a $P_{\infty}$-manifold. Such an operator was first mentioned by Khudaverdian and Voronov in \texttt{arXiv:1808.10049}. (This operator is an analogue of the Koszul--Brylinski boundary operator $\partial_P$ which defines Poisson homology for an ordinary Poisson structure.) Here we introduce $Δ=Δ_P$ by a different method and establish its properties. We show that this BV type operator generating higher Koszul brackets can be included in a one-parameter family of BV type formal $\hbar$-differential operators, which can be understood as a quantization of the cotangent $L_{\infty}$-bialgebroid. We obtain symmetric description on both $ΠTM$ and $ΠT^*M$. For the purpose of the above, we develop in detail a theory of formal $\hbar$-differential operators and also of operators acting on densities on dual vector bundles. In particular, we have a statement about operators that can be seen as a quantization of the Mackenzie--Xu canonical diffeomorphism. Another interesting feature is that we are able to introduce a grading, not a filtration, on our algebras of operators. When operators act on objects on vector bundles, we obtain a bi-grading.
Diffusive shock acceleration in radiation dominated environments
Creators: name: Vannoni, G.
name: Gabici, S.
name: Aharonian, F. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Radio, X-ray, and gamma-ray observations provide us with strong evidence of particle acceleration to multi-TeV energies in various astrophysical sources. Diffusive shock acceleration is one of the most successful models explaining the presence of such high-energy particles. We discuss the impact of inverse Compton losses on the shock acceleration of electrons that takes place in radiation dominated environments, i.e. in regions where the radiation energy density exceeds that of the magnetic field. We perform a numerical calculation, including an energy-loss term in the transport equation of accelerated particles. We discuss the implications of this effect on the hard X-ray synchrotron and gamma-ray inverse Compton radiation, produced by shock-accelerated electrons in young supernova remnants in the presence of large radiation fields (e.g. in the Galactic centre). We also discuss possible implications of our results for clusters of galaxies and gamma-ray binaries. We demonstrate that the inverse Compton losses of electrons, in the Klein-Nishina regime, lead to spectra of ultra-relativistic electrons that may significantly differ from classical diffusive shock acceleration solution. The most prominent feature is the appearance of a pile-up in the spectrum around the cut-off energy.
description: 11 pages, 12 figures, changed content, published on A&A (this version)
Additional file 1 of Divergent camptothecin biosynthetic pathway in Ophiorrhiza pumila
Creators: name: Yang, Mengquan
name: Wang, Qiang
name: Liu, Yining
name: Hao, Xiaolong
name: Wang, Can
name: Liang, Yuchen
name: Chen, Jianbo
name: Xiao, Youli
name: Kai, Guoyin
Publisher: name: figshare
Year: 2021
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 1: Fig. S1. O. pumila plant materials were used for metabolite profiling. Fig. S2. Analysis of gene expression patterns and phylogenic analysis of STRs, SLSs, LAMTs enzymes in CPT biosynthesis. Fig. S3. Protein sequence alignments mentioned in this article. Fig. S4. OpLAMT assay with secologanic acid and OpSTR competion expriments. Fig. S5. The standard curve of strictosidine and strictosidinic acid. Fig. S6. The SDS-PAGE gel of purified recombinant proteins used in the chemo-enzymatic synthesis of deuterium-labeled metabolites and biochemical assay. Fig. S7. Scheme of labeled substrates synthesis. Fig. S8. Chemoenzymatic synthesis of labeled substrates. Fig. S9. Detection of d4-strictosidinic acid and d4-strictosidine in the feeding experiments in O. pumila. Fig. S10. Metabolites detection of N. nimmoniana by LC-MS. Fig. S11. Phylogenetic relationship of DNA topoisomerase I in CPT-producing and non-producing species. Table S1. Relevant Compounds Detected in O. pumila plant and hairy root. Table S2. Identification of candidate CPT biosynthetic pathway genes in O. pumila as revealed by sequence identity with characterized genes from the pre-strictosidine biosynthetic pathways in Catharanthus roseus. Table S3. Identities and similarities among STRs from C. acuminata, N. nimmoniana, and O. pumila used in this work. Table S4. Kinetic parameters of OpSTR towards secologanin and secologanic acid. Table S5. Primers list used in this study.
Carnivora Bowdich 1821
Creators: name: Jo, Yeong-Seok
name: Baccus, John T.
name: Koprowski, John L.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora

description: ORDER CARNIVORA Bowdich, 1821  The Order Carnivora in Korea contains 25 species, 18 genera, and six families. Unfortunately, most large- and medium-sized carnivores are now extirpated, or their status is uncertain in Korea. Despite the high possibility of extinction, we include the large felids, canids and sea lion in our list. There continues to be a possibility that a few individuals persist or move from Russian Far East into northern Korea.
description: Published as part of Jo, Yeong-Seok, Baccus, John T. & Koprowski, John L., 2018, Mammals of Korea: a review of their taxonomy, distribution and conservation status, pp. 1-216 in Zootaxa 4522 (1) on page 63, DOI: 10.11646/zootaxa.4522.1.1, http://zenodo.org/record/2610198
Lettera ai cittadini di colore e ai negri liberi di Santo Domingo e delle altre isole francesi di America
Creators: name: Grégoire, Henri
name: Costantini, Dino
Publisher: name: Zenodo
Year: 2006

description: Traduzione di Henry Grégoire, Lettre aux citoyens de couleur et nègres libres de Saint-Domingue et des autres îles françaises de l’Amérique, Paris, Impr. du Patriote français, 1791.
Experimental statistical signature of many-body quantum interference
Creators: name: Giordani, Taira
name: Flamini, Fulvio
name: Pompili, Matteo
name: Viggianiello, Niko
name: Spagnolo, Nicolò
name: Crespi, Andrea
name: Osellame, Roberto
name: Wiebe, Nathan
name: Walschaers, Mattia
name: Buchleitner, Andreas
name: Sciarrino, Fabio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Multi-particle interference is an essential ingredient for fundamental quantum mechanics phenomena and for quantum information processing to provide a computational advantage, as recently emphasized by Boson Sampling experiments. Hence, developing a reliable and efficient technique to witness its presence is pivotal towards the practical implementation of quantum technologies. Here we experimentally identify genuine many-body quantum interference via a recent efficient protocol, which exploits statistical signatures at the output of a multimode quantum device. We successfully apply the test to validate three-photon experiments in an integrated photonic circuit, providing an extensive analysis on the resources required to perform it. Moreover, drawing upon established techniques of machine learning, we show how such tools help to identify the - a priori unknown - optimal features to witness these signatures. Our results provide evidence on the efficacy and feasibility of the method, paving the way for its adoption in large-scale implementations.
description: 15 pages, 12 figures
Non-planar universal anomalous dimension of twist-two operators with general Lorentz spin at four loops in N=4 SYM theory
Creators: name: Kniehl, B. A.
name: Velizhanin, V. N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the non-planar contribution to the universal anomalous dimension of twist-two operators in N=4 supersymmetric Yang-Mills theory at four loops through Lorentz spin eighteen. Exploiting the results of this and our previous calculations along with recent analytic results for the cusp anomalous dimension and some expected analytic properties, we reconstruct a general expression valid for arbitrary Lorentz spin. We study various properties of this general result, such as its large-spin limit, its small-x limit, and others. In particular, we present a prediction for the non-planar contribution to the anomalous dimension of the single-magnon operator in the beta-deformed version of the theory.
description: 22 pages
Rapid HeII->HeI recombination and radiation concerned with this process
Creators: name: Kholupenko, E. E.
name: Ivanchik, A. V.
name: Varshalovich, D. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recombination of the primordial helium plasma (HeII->HeI, $z \simeq 1500 - 3000$) is considered. This process has an effect on the CMBR anisotropy and CMBR spectrum distortion. In this work an influence of neutral hydrogen on kinetics of HeII->HeI recombination is investigated in the frame of the standard cosmological model. It is shown that small amount of neutral hydrogen ($10^{-5} - 10^{-2}$ of total number of hydrogen ions and atoms) leads to acceleration of HeII->HeI recombination at $z\lesssim 2000$ and at $z\lesssim 1600$ quasi-equilibrium HeII->HeI recombination (according to the Saha formula) becomes valid.
description: submitted to MNRAS Letters 23.01.2007, accepted 15.03.2007, 5 pages, 5 figures, 1 table
Coronal Abundances in Orion Nebula Cluster Stars
Creators: name: Maggio, A.
name: Flaccomio, E.
name: Favata, F.
name: Micela, G.
name: Sciortino, S.
name: Feigelson, E. D.
name: Getman, K. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Following the Chandra Orion Ultradeep Project (COUP) observation, we have studied the chemical composition of the hot plasma in a sample of 146 X-ray bright pre-main sequence stars in the Orion Nebula Cluster. We report measurements of individual element abundances for a subsample of 86 slightly-absorbed and bright X-ray sources, using low resolution X-ray spectra obtained from the Chandra ACIS instrument. The X-ray emission originates from a plasma with temperatures and elemental abundances very similar to those of active coronae in older stars. A clear pattern of abundances vs. First Ionization Potential (FIP) is evident if solar photospheric abundances are assumed as reference. The results are validated by extensive simulations. The observed abundance distributions are compatible with a single pattern of abundances for all stars, although a weak dependence on flare loop size may be present. The abundance of calcium is the only one which appears to vary substantially between stars, but this quantity is affected by relatively large uncertainties. The ensemble properties of the X-ray bright COUP sources confirm that the iron in the emitting plasma is underabundant with respect to both the solar composition and to the average stellar photospheric values. Comparison of the present plasma abundances with those of the stellar photospheres and those of the gaseous component of the nebula, indicates a good agreement for all the other elements with available measurements, and in particular for the high-FIP elements (Ne, Ar, O, and S) and for the low-FIP element Si. We conclude that there is evidence of a significant chemical fractionation effect only for iron, which appears to be depleted by a factor 1.5--3 with respect to the stellar composition.
description: 18 pages, 17 figures
Rough translation of file 030_A (collection LA 256)
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: hup

description: Audio file VP-150815-05: Rough translation (30 second to 3-4 minute chunks) of file 030_A (tape 30, side A) from LA 256 (collection of recordings given to the Berkeley Language Center by Verdena), from 21:16 to 30:55; no transcription in this session, translation only. Due to re-numbering, tape 030_A has been assigned to the CLA item number LA256.030, audio file LA256.030A.
A force proportional to velocity squared derived from spacetime algebra
Creators: name: Hansen, Steen H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The underlying geometri of spacetime algebra allows one to derive a force by contracting the relativistic generalization of angular momentum, M, with the mass-current, mw, where w is a proper 4-vector velocity. By applying this force to a cosmological object, a repulsive inverse distance-square law is found, which is proportional to the velocity dispersion squared of that structure. It is speculated if this finding may be relevant to the recent suggestion, that such a force may accelerate the expanding universe with no need for a cosmological constant.
description: 4 pages, no figure, submitted to MNRAS
Η διήγηση της διαδοχής του Δαβίδ στη δευτερονομιστική ιστορία: μια εξηγητική και ιστορική έρευνα του Β' Βασ. 9-20 και Γ ' 1-2
Creators: name: Son, Jong-Hee
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Βιβλία Χρονικών
Θεωρία του Rost
Book of Chronicles
Rost's theory

description: Η παρούσα εργασία διαιρείται σε τρία μέρη. Σκοπός της μελέτης είναι να επανεκτιμήσει τη θεωρία του L. Rost όσον αφορά την Δ.Δ. και να ερευνήσει τη θεολογική σχέση μεταξύ της Δ.Δ. και της Δευτ. Ιστορίας, με σκοπό να φωτίσει τη συντακτική δραστηριότητα του Δευτερονομιστή στην παράδοση για τον Δαυλιδ στο Β' Βασιλ. 9- Γ' Βασ. 2
description: The purpose of this study is to reappraise L.Rost's theory concerning the succesion narrative, and to investigate the theological relationship between the succesion narrative and the Deuteronomistic History, in order to emphasize the redactional activity of the Deuterionomist in the tradition of David in II Samuel 9-I Kings 1-2. The Deuteronomistic intention retteling the succession narative which produced in Solomon's period who not to explain David's sins of the adultery and murder, the birth of Solomon as the duture successor, Absalom's revolt, and the accession of Soloma etc. It was further not to highlight or criticize the negative aspects of David and Solomon. In the accounts of the sin, punishment, and restoration of David and his family described in II Sam. 9-20 and I Kings 1-2, the Deuteronomist found a theological metaphor for his audience living in the same situation of the Babylonian exile. Indeed, the succession narrative coincided so well with the Deuteronomistic ideology in the pattern of sin-punishment-deliverance, which pervades every element of the entire work of the Deuronomistic History from beginning to end
Calculation of multiphoton ionization amplitudes and cross sections of few-electron atoms
Creators: name: Mihelic, Andrej
name: Horvat, Martin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present a theoretical method for calculating multiphoton ionization amplitudes and cross sections of few-electron atoms. The present approach is based on an extraction of partial wave amplitudes from a scattering wave function, which is calculated by solving a system of driven Schroedinger equations. The extraction relies on a description of partial waves in terms of a small number of Coulomb waves with fixed wave numbers. The method can be used for photon energies below and above the ionization threshold and to treat resonance-enhanced multiphoton ionization. We use it to calculate two-, three-, and four-photon ionization cross sections of hydrogen and helium atoms for a wide range of photon energies and to determine the asymmetry parameters of photoelectron angular distributions for two-, three-, and four-photon ionization of the helium atom.
description: accepted for publication in Phys. Rev. A, https://journals.aps.org/pra/accepted/a8075N1dM0d10d13e86f0ff5895a72bf669f3d17f
On motivic principal value integrals
Creators: name: Veys, Willem
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14E15; 14E30; 32S45 (28B99)

description: Inspired by p-adic (and real) principal value integrals, we introduce motivic principal value integrals associated to multi-valued rational differential forms on smooth algebraic varieties. We investigate the natural question whether (for complete varieties) this notion is a birational invariant. The answer seems to be related to the dichotomy of the Minimal Model Program.
description: 14 pages
MudrockNet: Semantic Segmentation of Mudrock SEM Images through Deep Learning
Creators: name: Bihani, Abhishek
name: Daigle, Hugh
name: Santos, Javier E.
name: Landry, Christopher
name: Prodanovic, Masa
name: Milliken, Kitty
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: Geophysics (physics.geo-ph)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences
subject: I.4.6; I.4.3

description: Segmentation and analysis of individual pores and grains of mudrocks from scanning electron microscope images is non-trivial because of noise, imaging artifacts, variation in pixel grayscale values across images, and overlaps in grayscale values among different physical features such as silt grains, clay grains, and pores in an image, which make their identification difficult. Moreover, because grains and pores often have overlapping grayscale values, direct application of threshold-based segmentation techniques is not sufficient. Recent advances in the field of computer vision have made it easier and faster to segment images and identify multiple occurrences of such features in an image, provided that ground-truth data for training the algorithm is available. Here, we propose a deep learning SEM image segmentation model, MudrockNet based on Google's DeepLab-v3+ architecture implemented with the TensorFlow library. The ground-truth data was obtained from an image-processing workflow applied to scanning electron microscope images of uncemented muds from the Kumano Basin offshore Japan at depths < 1.1 km. The trained deep learning model obtained a pixel-accuracy about 90%, and predictions for the test data obtained a mean intersection over union (IoU) of 0.6591 for silt grains and 0.6642 for pores. We also compared our model with the random forest classifier using trainable Weka segmentation in ImageJ, and it was observed that MudrockNet gave better predictions for both silt grains and pores. The size, concentration, and spatial arrangement of the silt and clay grains can affect the petrophysical properties of a mudrock, and an automated method to accurately identify the different grains and pores in mudrocks can help improve reservoir and seal characterization for petroleum exploration and anthropogenic waste sequestration.
description: 24 pages, 8 figures, submitted to Computers and Geosciences
Hysteresis and spin phase transitions in quantum wires in the integer quantum Hall regime
Creators: name: Ihnatsenka, S.
name: Zozoulenko, I. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate that a split-gate quantum wire in the integer quantum Hall regime can exhibit electronic transport hysteresis for up- and down-sweeps of a magnetic field. This behavior is shown to be due to phase spin transitions between two different ground states with and without spatial spin polarization in the vicinity of the wire boundary. The observed effect has a many-body origin arising from an interplay between a confining potential, Coulomb interactions and the exchange interaction. We also demonstrate and explain why the hysteretic behavior is absent for steep and smooth confining potentials and is present only for a limited range of intermediate confinement slopes.
description: submitted to PRL
A positivity conjecture for Jack polynomials
Creators: name: Lassalle, Michel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We present a positivity conjecture for the coefficients of the development of Jack polynomials in terms of power sums. This extends Stanley's ex-conjecture about normalized characters of the symmetric group. We prove this conjecture for partitions having a rectangular shape.
description: 24 pages, LaTeX
Effects of supervisory profiling on targeted feedback behaviors of preservice physical educators
Creators: name: Smith, John O.
Publisher: name: University of British Columbia
Year: 2010

description: A review of the research in the area of teacher education and especially in the domain of preservice teacher supervision in physical education has indicated the need for improvements in supervisory practices (Paese, 1984b; Tannehill & Zakrajsek, 1988). Although several contemporary, research-based supervisory innovations have been made available for use by university advisors and cooperating associate teachers, few of the methods have been practiced (and none of them extensively) in the actual school setting (Freiberg & Waxman, 1988; Siedentop, 1985; Taggart, 1988). Reasons for this phenomenon were considered in light of school culture and educational change research. The completed study measured the effects of specific supervisory feedback methods on the absolute and relative frequencies of four categories of feedback utilized by student teachers in secondary school physical education lessons. Data collected illustrated the magnitudes by which each condition of supervisory feedback changed the amounts and/or ratios of these types of feedback used by the subjects. Statistical analysis (MANOVA) of the data was used to determine that no significant differences existed amongst the groups as a result of the treatments and the repeated interventions. Implications for the most effective supervisory feedback strategies and for the development of alternate methods of student teacher supervision were discussed in light of both quantitative and qualitative results and observations.
Νατριουρητικά πεπτίδια και καρδιακή λειτουργία σε ασθενείς με σακχαρώδη διαβήτη τύπου 2
Creators: name: Φωτιάδης, Σπύρος Δ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Kολπικό νατριουρητικό πεπτίδιο
Εγκεφαλικό νατριουρητικό πεπτίδιο
Atrial natriuretic peptide
Brain natriuretic peptide

description: Σκοπός της μελέτης ήταν να διερευνηθεί η σχέση μεταξύ των νατριουρητικών πεπτιδίων ΑΝΡ και ΒΝΡ και του μυοκαρδιακού δείκτη απόδοσης ΜΡΙ ή ΤΕΙ index σε διαβηικούς τύπου 2 ασθενείς χωρίς γνωστό ιστορικό καρδιοαγγειακής νόσου. Μελετήθηκαν 44 ασθενείς(22 γυναίκες και 22 άνδρες). Η μέση τιμή ΤΕΙ index στους άνδρες ήταν 0,60Τ+_0,27 ενώ η αντίστοιχη στις γυναίκες ήταν 0,47+_0,12. Η μέση τιμή του ΑΝΡ στις γυναίκες 49+_30pg/ml ενώ στους άνδρες 50,10+_70pg/ml. Η μέση τιμή του ΒΝΡ στους άνδρες ήταν 213+_170 pg/ml ενώ στις γυναίκες 154+_120pg/ml. O TEI index φάνηκε να έχει στατιστικά σημαντική συσχέτιση με το ΒΝΡ(8^2=0,453, π<0,001) ανάλογη στατιστικά σημαντική συσχέτιση δεν διαπιστώθηκε μεταξύ του ΑΝΡ και του ΤΕΙ index
description: The aim of the present study was to assess early pre-clinical heart dysfunction of type-2 diabetic patients using the biochemical markers ANP and BNP together with the echocardiography Myocardial Performance Index(MPI, TEI index). We studied a cohort of 44 asymptomatic randomly recruited type 2 diabetic patients who were free of a history of heart failure or coronary artery disease. We investigated the correlation between BNP and TEI index, ANP and TEI index. BNP and HbAic, TEI index and HbA1c, ANP and HbAic. Log TEI index correlated with long BNP(r^2=0,453, p<0,001). Log TEI index correlated with HbAic(r^2=0,226, p<0,014) and log BNP correlated with HbAic (r^2=0,258, φ<0,008). No statistically significant correlation was found between ANP and TEI index ANP and HbA1c
The Effect of Large-Scale Inhomogeneities on the Luminosity Distance
Creators: name: Brouzakis, N.
name: Tetradis, N.
name: Tzavara, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the form of the luminosity distance as a function of redshift in the presence of large scale inhomogeneities, with sizes of order 10 Mpc or larger. We approximate the Universe through the Swiss-cheese model, with each spherical region described by the Tolman-Bondi metric. We study the propagation of light beams in this background, assuming that the locations of the source and the observer are random. We derive the optical equations for the evolution of the beam area and shear. Through their integration we determine the configurations that can lead to an increase of the luminosity distance relative to the homogeneous cosmology. We find that this can be achieved if the Universe is composed of spherical void-like regions, with matter concentrated near their surface. For inhomogeneities consistent with the observed large scale structure, the relative increase of the luminosity distance is of the order of a few percent at redshifts near 1, and falls short of explaining the substantial increase required by the supernova data. On the other hand, the effect we describe is important for the correct determination of the energy content of the Universe from observations.
description: 27 pages, 5 figures Revised version. References added. Conclusions clarified
Interfacial Electron-Phonon Coupling Constants Extracted from Intrinsic Replica Bands in Monolayer FeSe/SrTiO$_3$
Creators: name: Faeth, Brendan D.
name: Xie, Saien
name: Yang, Shuolong
name: Kawasaki, Jason K.
name: Nelson, Jocienne N.
name: Zhang, Shuyuan
name: Mishra, Pramita
name: Li, Chen
name: Jozwiak, Christopher
name: Bostwick, Aaron
name: Rotenberg, Eli
name: Schlom, Darrell G.
name: Shen, Kyle M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The observation of replica bands by angle-resolved photoemission spectroscopy has ignited interest in the study of electron-phonon coupling at low carrier densities, particularly in monolayer FeSe/SrTiO$_3$, where the appearance of replica bands has motivated theoretical work suggesting that the interfacial coupling of electrons in the FeSe layer to optical phonons in the SrTiO$_3$ substrate might contribute to the enhanced superconducting pairing temperature. Alternatively, it has also been recently proposed that such replica bands might instead originate from extrinsic final state losses associated with the photoemission process. Here, we perform a quantitative examination of replica bands in monolayer FeSe/SrTiO$_3$, where we are able to conclusively demonstrate that the replica bands are indeed signatures of intrinsic electron-boson coupling, and not associated with final state effects. A detailed analysis of the energy splittings between the higher-order replicas, as well as other self-energy effects, allow us to determine that the interfacial electron-phonon coupling in the system corresponds to a value of $λ= 0.19 \pm 0.02$.
description: 5 pages, 4 figures
title: Economic Policy Uncertainty Index
title: Extension and optimization of Scott R. Baker, Nicholas Bloom and Steven J. Davis’s search term
titleType: AlternativeTitle
Creators: name: Brandt, Richard
Publisher: name: Technische Universität Dortmund
Year: 2021
Subjects: subject: economic policy
subject: uncertainty risk
subject: search term
subject: optimization
subject: media analyses
subject: recall
subject: precision
subject: 004
subject: 070
subject: 310

description: DoCMA Working Paper;5
Derivation modules of orthogonal duals of hyperplane arrangements
Creators: name: Kung, Joseph P. S.
name: Schenck, Hal
Publisher: name: arXiv
Year: 2006
Subjects: subject: Combinatorics (math.CO)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 52C35 (Primary) 05B35 05C99 13D05 (Secondary)

description: Let A be an n by d matrix having full rank n. An orthogonal dual A^{\perp} of A is a (d-n) by d matrix of rank (d-n) such that every row of A^{\perp} is orthogonal (under the usual dot product) to every row of A. We define the orthogonal dual for arrangements by identifying an essential (central) arrangement of d hyperplanes in n-dimensional space with the n by d matrix of coefficients of the homogeneous linear forms for which the hyperplanes are kernels. If n is at least 5, we show that if the matroid (or the intersection lattice) of an n-dimensional essential arrangement A contains a modular copoint whose complement spans, then the derivation module of the orthogonally dual arrangement \A^{\perp} has projective dimension at least [n(n+2)/4] - 3,([ ] denotes ceiling).
description: 9 pages 2 figures
Resilienza: luci e ombre di un costrutto attuale
Creators: name: Fratini, Tommaso
Publisher: name: Studi sulla Formazione
Year: 2014

description: The article conducts a critical reading of the concept of resilience, discussing the implications for pedagogy. In the first part of the work, after reviewing the origins of the concept of resilience in evolutionary studies on risk and protection factors in the life cycle, the original psychoanalytic matrix is put into place, which extends the concept of coping and defense mechanisms. In the second part of the work, the pedagogical value of the concept of resilience is discussed within a critical view of adaptation and social change. This is expressed within a model of critical pedagogy already well defined and aimed at enhancing the significance of resistance against the social pathologies of our time, such as the basis of educational action in a particularly democratic and valuable sense.
description: Studi sulla Formazione, Anno XVII, I-2014
Implementation of a double-scanning technique for studies of the Hanle effect in Rubidium vapor
Creators: name: Atvars, A.
name: Auzinsh, M.
name: Gazazyan, E. A.
name: Papoyan, A. V.
name: Shmavonyan, S. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We have studied the resonance fluorescence of a room-temperature rubidium vapor exited to the atomic 5P3/2 state (D2 line) by powerful single-frequency cw laser radiation (1.25 W/cm^2) in the presence of a magnetic field. In these studies, the slow, linear scanning of the laser frequency across the hyperfine transitions of the D2 line is combined with a fast linear scanning of the applied magnetic field, which allows us to record frequency-dependent Hanle resonances from all the groups of hyperfine transitions including V- and Lambda - type systems. Rate equations were used to simulate fluorescence signals for 85Rb due to circularly polarized exciting laser radiation with different mean frequency values and laser intensity values. The simulation show a dependance of the fluorescence on the magnetic field. The Doppler effect was taken into account by averaging the calculated signals over different velocity groups. Theoretical calculations give a width of the signal peak in good agreement with experiment.
La nascita della Bildung
Creators: name: Gennari, Mario
Publisher: name: Studi sulla Formazione
Year: 2014

description: The article considers the question of Bildung as it has been interpreted in the medieval history. The analysis therefore moves off from the tradition of Plato and Platonism of Aristotele and Aristotelism to Meister Eckhart. In this respect, the concept of Bildung is introduced through a lens of German mysticism and with a close examination of the Latin language jointly the Mittelhochdeutsch. The result is a work around the birth of Bildung in the Christian and medieval culture, in a particular manner inside Eckhart’s German language orientated to the idea of divine self-formation.
description: Studi sulla Formazione, Anno XVII, I-2014
Hitos claves de la Pedología de Fertilidad a Salud del Suelo, Evaluación de la Salud de Suelos Boreales desde su conversión a zonas agrícolas en Cánada
Creators: name: BENALCAZAR VERGARA, PAUL
Publisher: name: Zenodo
Year: 2024
Subjects: soil health
boreal soil
canada
northern territories
soil functions
soil indicators
organic matter

description: Hitos claves de la pedologia de fertilidad de suelos a evaluacion de la salud del suelo muestra el desarrollo y evolucion de la pedologia. Esta presentacion muestra como pedologia catalogaba al suelo y como sus implicaciones pasaron de ser puntuales, espeficias y muy cientificas a ser hoy por hoy, el estudio del suelo hacer una ciencia mucho mas holistica con todos los actores que conforman el ecosistema incluido el ser humano
Η ερωτική επιθυμία σε νεοελληνικά πεζογραφικά κείμενα του 19ου αιώνα: ζητήματα γραφής και αναπαράστασης
Creators: name: Καλαούζη, Κωνσταντίνα
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Ατελέσφορος έρωτας
Αμαρτία
Βία
Ηδονή
Tainted love (Unfulfilled desire)
Sin
Violence
Pleasure

description: Η εργασία διερευνά το ρόλο και τις λειτουργίες της ερωτικής επιθυμίας σε κείμενα της νεοελληνικής πεζογραφίας του 19ου αιώνα μέσω της επικέντρωσης στις βασικές θεματικές-ιδεολογικές προϋποθέσεις και αναπαραστάσεις που συνθέτουν το "ερωτικό". Στο πρώτο μέρος επικεντρωνόμαστε σε τρεις βασικές θεματικές προϋποθέσεις : στο ρόλο του εμποδίου, στο θέμα του ατελέσφορου έρωτα και στην τριγωνική δομή του ερωτικού. Στο δεύτερο μέρος αναλύονται βασικές ιδεολογικές προϋποθέσεις της επιθυμίας. Η σύνδεση της ερωτικής επιθυμίας με τις κοινωνικά και ηθικά επιβαρυμένες έννοιες της αμαρτίας-της βίας και ηδονής συντελεί στην ενίσχυση στερεοτυπικών προσεγγίσεων της επιθυμίας και κατοχυρώνει έμφυλους διαχωρισμούς. Στο τρίτο μέρος αναπτύσσεται η τυπολογία του ερωτικού. Η κατασκευασιμότητα και γι'αυτό πλασματικότητα, της επιθυμίας αναδεικνύεται μέσα από τον συσχετισμό φύλου και ταυτότητας της επιθυμίας. Οι προσεγγίσεις οριοθετούν μία έμφυλη προσέγγιση της επιθυμίας και αναδεικνύουν μία ποικιλία ιδεολογικών-πολιτικών-κοινωνικών παρασημάνσεων που φέρνουν στο φως συντηρητικές πρακτικές αλλά και σημαντικές ρήξεις που σηματοδοτούν επανεκτιμήσεις ως προς το ρόλο και την αποδοχή της ερωτικής επιθυμίας κατά τον 19ο αι.
description: This thesis examines the role and functions of desire in greek prose texts of the 19th centry through tha analysis of certain thematic presuppositions related to desire, as well as by focusing on firm stereotypical representations that form the "erotic". IN the first section we focus on three basic thematic presuppositions the role of the obstacle, the tainted love(unfulfilled desire) and the triangular structure of love affairs. In the second section we describe ideologically formulated presupposition which mainly connect desire to notions socially and moraly degraded; the relation of desire with the themes of Sin, Violence and Pleasure, conduces to the empowement of stereotypical representations and relates to discriminations connected to the problematics of gender. The last part unveils the typology of desire. The constructed and basically factitious nature of desire is highlighted through the colligation of the gender and the identity of desire. These approaches show the "female" character of desire and elevate a diversity of ideological, political and social denotations; they also, however, reveal important ruptures that signal reassessments as to the acceptance of desire in the 19th century
Incompressible Liquid, Stripes and Bubbles in rapidly rotating Bose atoms at $ν=1$
Creators: name: Seki, Hidetsugu
name: Ino, Kazusumi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We numerically study the system of rapidly rotating Bose atoms at the filling factor (ratio of particle number to vortex number) $ν=1$ with the dipolar interaction. A moderate dipolar interaction stabilizes the incompressible quantum liquid at $ν=1$. Further addition induces a collapse of it. The state after the collapse is a compressible state which has phases with stripes and bubbles. There are two types of bubbles with a different array. We also investigate models constructed from truncated interactions and the models with the three-body contact interaction. They also have phases with stripes and bubbles.
description: 11 pages, 22 figures
Imaginação, culturas e fontes documentais em desenhos de meninas e meninos da Educação Infantil brasileira
Creators: name: Aparecida Gobbi, Marcia
Publisher: name: Studi sulla Formazione
Year: 2014

description: This article presents aspects of imagination and culture of Brazilian girls and boys of Sao Paulo childhood education from some of his drawings. In dialogue with studies of sociology and anthropology it is considered that the drawings are documentary sources and expressions of childhood imagination.
description: Studi sulla Formazione, Anno XVII, I-2014
SDSS-IV MaNGA: The Radial Profile of Enhanced Star Formation in Close Galaxy Pairs
Creators: name: Steffen, Joshua L.
name: Fu, Hai
name: Comerford, J. M.
name: Dai, Y. Sophia
name: Feng, Shuai
name: Gross, Arran C.
name: Xue, Rui
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We compare the radial profiles of the specific star formation rate (sSFR) in a sample of 169 star-forming galaxies in close pairs with those of mass-matched control galaxies in the SDSS-IV MaNGA survey. We find that the sSFR is centrally enhanced (within one effective radius) in interacting galaxies by ~0.3 dex and that there is a weak sSFR suppression in the outskirts of the galaxies of ~0.1 dex. We stack the differences profiles for galaxies in five stellar mass bins between log(M/Mstar) = 9.0-11.5 and find that the sSFR enhancement has no dependence on the stellar mass. The same result is obtained when the comparison galaxies are matched to each paired galaxy in both stellar mass and redshift. In addition, we find that that the sSFR enhancement is elevated in pairs with nearly equal masses and closer projected separations, in agreement with previous work based on single-fiber spectroscopy. We also find that the sSFR offsets in the outskirts of the paired galaxies are dependent on whether the galaxy is the more massive or less massive companion in the pair. The more massive companion experiences zero to a positive sSFR enhancement while the less massive companion experiences sSFR suppression in their outskirts. Our results illustrate the complex tidal effects on star formation in closely paired galaxies.
description: 13 pages, 9 figures. Accepted for publication in The Astrophysical Journal. For the associated machine readable table, see https://github.com/fuhaiastro/data/tree/main/Steffen21