cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
TrES-2: The First Transiting Planet in the Kepler Field
Creators: name: O'Donovan, Francis T.
name: Charbonneau, David
name: Mandushev, Georgi
name: Dunham, Edward W.
name: Latham, David W.
name: Torres, Guillermo
name: Sozzetti, Alessandro
name: Brown, Timothy M.
name: Trauger, John T.
name: Belmonte, Juan A.
name: Rabus, Markus
name: Almenara, Jose M.
name: Alonso, Roi
name: Deeg, Hans J.
name: Esquerdo, Gilbert A.
name: Falco, Emilio E.
name: Hillenbrand, Lynne A.
name: Roussanova, Anna
name: Stefanik, Robert P.
name: Winn, Joshua N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We announce the discovery of the second transiting hot Jupiter discovered by the Trans-atlantic Exoplanet Survey. The planet, which we dub TrES-2, orbits the nearby star GSC 03549-02811 every 2.47063 days. From high-resolution spectra, we determine that the star has T_eff = 5960 +/- 100 K and log(g) = 4.4 +/- 0.2, implying a spectral type of G0V and a mass of 1.08 +0.11/-0.05 M_sun. High-precision radial-velocity measurements confirm a sinusoidal variation with the period and phase predicted by the photometry, and rule out the presence of line-bisector variations that would indicate that the spectroscopic orbit is spurious. We estimate a planetary mass of 1.28 +0.09/-0.04 M_Jup. We model B, r, R, and I photometric timeseries of the 1.4%-deep transits and find a planetary radius of 1.24 +0.09/-0.06 R_Jup. This planet lies within the field of view of the NASA Kepler mission, ensuring that hundreds of upcoming transits will be monitored with exquisite precision and permitting a host of unprecedented investigations.
description: Accepted for publication in ApJL. 15 pages, 2 figures
Electron Scattering from Gaseous Ocs($^1Σ$): Comparing Computed Angular Distributions and Elastic Cross Sections with Experiments
Creators: name: Gianturco, F. A.
name: Stoecklin, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Differential cross sections are computed for the title polar molecule using static interaction, exchange forces and correlation-polarisation effects as described in detail in the main text. The dipole effect is also reported via the dipole Born correction procedure and the final angular distributions are compared with existing experimental data. The shape and location of the prominent low-energy resonance are computed and compared with experiments. The comparison shows that the present treatment of the interaction forces and of the quantum dynamics can indeed afford good agreement between measured and computed quantities for a multielectron target as OCS.
Tracing the development of dust around evolved stars: The case of 47 Tuc
Creators: name: Lebzelter, T.
name: Posch, T.
name: Hinkle, K.
name: Wood, P. R.
name: Bouwman, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We observed mid-infrared (7.5-22 mum) spectra of AGB stars in the globular cluster 47 Tuc with the Spitzer telescope and find significant dust features of various types. Comparison of the characteristics of the dust spectra with the location of the stars in a logP-K-diagram shows that dust mineralogy and position on the AGB are related. A 13 mum feature is seen in spectra of low luminosity AGB stars. More luminous AGB stars show a broad feature at 11.5 mum. The spectra of the most luminous stars are dominated by the amorphous silicate bending vibration centered at 9.7 mum. For 47 Tuc AGB stars, we conclude that early on the AGB dust consisting primarily of Mg-, Al- and Fe oxides is formed. With further AGB evolution amorphous silicates become the dominant species.
description: 2 figures, accepted for publication in ApJ Letters
Cold dark matter in brane cosmology scenario
Creators: name: Dahab, E. Abou El
name: Khalil, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the dark matter problem in the context of brane cosmology. We investigate the impact of the non-conventional brane cosmology on the relic abundance of non-relativistic stable particles in high and low reheating scenarios. We show that in case of high reheating temperature, the brane cosmology may enhance the dark matter relic density by many order of magnitudes and a stringent lower bound on the five dimensional scale is obtained. We also consider low reheating temperature scenarios with chemical equilibrium and non-equilibrium. We emphasize that in non-equilibrium case, the resulting relic density is very small. While with equilibrium, it is increased by a factor of O(10^2) with respect to the standard thermal production. Therefore, dark matter particles with large cross section, which is favored by detection expirements, can be consistent with the recent relic density observational limits.
description: 14 pages, 1 figure
Learning disentangled representations via product manifold projection
Creators: name: Fumero, Marco
name: Cosmo, Luca
name: Melzi, Simone
name: Rodolà, Emanuele
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We propose a novel approach to disentangle the generative factors of variation underlying a given set of observations. Our method builds upon the idea that the (unknown) low-dimensional manifold underlying the data space can be explicitly modeled as a product of submanifolds. This definition of disentanglement gives rise to a novel weakly-supervised algorithm for recovering the unknown explanatory factors behind the data. At training time, our algorithm only requires pairs of non i.i.d. data samples whose elements share at least one, possibly multidimensional, generative factor of variation. We require no knowledge on the nature of these transformations, and do not make any limiting assumption on the properties of each subspace. Our approach is easy to implement, and can be successfully applied to different kinds of data (from images to 3D surfaces) undergoing arbitrary transformations. In addition to standard synthetic benchmarks, we showcase our method in challenging real-world applications, where we compare favorably with the state of the art.
description: 15 pages, 10 figures
Additional file 3 of Vitamin C improves the therapeutic potential of human amniotic epithelial cells in premature ovarian insufficiency disease
Creators: name: Hou, Shunyu
name: Ding, Chenyue
name: Shen, Han
name: Qian, Chunfeng
name: Zou, Qinyan
name: Lu, Jiafeng
name: Huang, Boxian
name: Tan, Jichun
name: Li, Hong
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology

description: Additional file 3: Table S2. Information regarding the western blot antibodies.
Search and localization dynamics of the CRISPR/Cas9 system
Creators: name: Lu, Qiao
name: Bhat, Deepak
name: Stepanenko, Darya
name: Pigolotti, Simone
Publisher: name: arXiv
Year: 2021
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The CRISPR/Cas9 system acts as the prokaryotic immune system and has important applications in gene editing. The protein Cas9 is one of its crucial components. The role of Cas9 is to search for specific target sequences on the DNA and cleave them. In this Letter, we introduce a model of facilitated diffusion for Cas9 and fit its parameters to single-molecule experiments. Our model confirms that Cas9 search for targets by sliding, but shows that its sliding length is rather short. We then investigate how Cas9 explores a long stretch of DNA containing randomly placed targets. We solve this problem by mapping it into the theory of Anderson localization in condensed matter physics. Our theoretical approach rationalizes experimental evidences on the distribution of Cas9 molecules along the DNA.
description: 8 pages, 10 figures. Combined Main Text + SI. Accepted for publication in Physical Review Letters
Another Non-segregated Blue Straggler Population in a Globular Cluster: the Case of NGC 2419
Creators: name: Dalessandro, E.
name: Lanzoni, B.
name: Ferraro, F. R.
name: Vespe, F.
name: Bellazzini, M.
name: Rood, R. T.
name: -
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used a combination of ACS-HST high-resolution and wide-field SUBARU data in order to study the Blue Straggler Star (BSS) population over the entire extension of the remote Galactic globular cluster NGC 2419. The BSS population presented here is among the largest ever observed in any stellar system, with more than 230 BSS in the brightest portion of the sequence. The radial distribution of the selected BSS is essentially the same as that of the other cluster stars. In this sense the BSS radial distribution is similar to that of omega Centauri and unlike that of all Galactic globular clusters studied to date, which have highly centrally segregated distributions and, in most cases, a pronounced upturn in the external regions. As in the case of omega Centauri, this evidence indicates that NGC 2419 is not yet relaxed even in the central regions. This observational fact is in agreement with estimated half-mass relaxation time, which is of the order of the cluster age.
description: in press in the ApJ
Carrier-density effects in many-polaron systems
Creators: name: Hohenadler, Martin
name: Hager, Georg
name: Wellein, Gerhard
name: Fehske, Holger
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Many-polaron systems with finite charge-carrier density are often encountered experimentally. However, until recently, no satisfactory theoretical description of these systems was available even in the framework of simple models such as the one-dimensional spinless Holstein model considered here. In this work, previous results obtained using numerical as well as analytical approaches are reviewed from a unified perspective, focussing on spectral properties which reveal the nature of the quasiparticles in the system. In the adiabatic regime and for intermediate electron-phonon coupling, a carrier-density driven crossover from a polaronic to a rather metallic system takes place. Further insight into the effects due to changes in density is gained by calculating the phonon spectral function, and the fermion-fermion and fermion-lattice correlation functions. Finally, we provide strong evidence against the possibility of phase separation.
description: 13 pages, 6 figures, accepted for publication in J. Phys.: Condens. Matter; final version
Multi-receiver performance of slotted Aloha multiple access with direct sequence spread-spectrum signalling for wireless in-building networks
Creators: name: Au, Andrew W. Y.
Publisher: name: University of British Columbia
Year: 2009

description: Recently, indoor networks trend towards the use of radio technology because of the user terminal portability and location flexibility it offers. The distributed architecture allows wireless terminals to interconnect to a backbone local area network via multiple receivers, easing network configuration and mobility management relative to the centralized approach. To combat both multipath and multiaccess interference, we consider a wireless in-building network where all terminals employ a common spreading sequence for direct sequence spread spectrum (SS) signalling in the physical layer, and the slotted Aloha protocol for multiple access. The objective of this thesis is to model and analyze the performance of such a system. The bit-error rate at the receiver is derived to study the capture effect of SS signalling technique with respect to different terminal locations in a room. Using theoretical analysis and simulations, we prove that this system is always stable under slotted Aloha multiple access, and achieves a high channel throughput approaching the number of receivers present, and a finite packet waiting time under heavy traffic. However, the near-far effect results in uneven performance at different locations. Among several strategies developed for combating the near-far problem, random signal selection with power control is capable in reducing the variation in the receiver capturing probability over different locations under heavy traffic, whereas power control only is suitable for light traffic. An infinite population model in an infinitely large room is used to study the placement of receivers. A ratio of receiver separation distance to separation distance between packet transmissions of 0.8 guarantees an average receiver throughput of at least 50% and a standard deviation in the receiver capturing probability of at most 10% of the average among all terminal locations. The square and interlaced receiver placement patterns are found to give very similar performance. These results are further shown to be applicable also for a finite population model in a room of limited size.
Constraints on parameters of radiatively decaying dark matter from the galaxy cluster 1E0657-56
Creators: name: Boyarsky, Alexey
name: Ruchayskiy, Oleg
name: Markevitch, Maxim
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derived constraints on parameters of a radiatively decaying warm dark matter particle, e.g., the mass and mixing angle for a sterile neutrino, using Chandra X-ray spectra of a galaxy cluster 1E0657-56 (the ``bullet'' cluster). The constraints are based on nondetection of the sterile neutrino decay emission line. This cluster exhibits spatial separation between the hot intergalactic gas and the dark matter, helping to disentangle their X-ray signals. It also has a very long X-ray observation and a total mass measured via gravitational lensing. This makes the resulting constraints on sterile neutrino complementary to earlier results that used different cluster mass estimates. Our limits are comparable to the best existing constraints.
description: 6pp
Dark sky tourism and sustainable development in Namibia
Creators: name: Dalgleish, Hannah
name: Mengistie, Getachew
name: Backes, Michael
name: Cotter, Garret
name: Kasai, Eli
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Namibia is world-renowned for its incredibly dark skies by the astronomy community, and yet, the country is not well recognised as a dark sky destination by tourists and travellers. Forged by a collaboration between the Universities of Oxford and Namibia, together we are using astronomy as a means for capacity-building and sustainable socio-economic growth via educating tour guides and promoting dark sky tourism to relevant stakeholders.
description: Accepted in IAUS367 Proceedings; 2 pages, 1 figure
Η Αναγνώριση Χριστιανών Μαρτύρων Κατά τον πόλεμο. Η Περίπτωση του Πατριαρχείου Αντιοχείας
Creators: name: Kahila, Elie Mtanious
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Η Αναγνώριση
ΟΙ Χριστιανοί Μάρτυρες
ΤΟ Πατριαρχείο Αντιοχείας
The recognition
The Christian martyrs
The patriarchate of Antioch

description: Σκοπός της διατριβής ήταν η αναγνώριση χριστιανών μαρτύρων κατά τον πόλεμο, η περίπτωση του πατριαρχείου Αντιόχειας. Εξετάσαμε την αναγνώριση και την ανακήρυξη των αγίων στην ορθόδοξη εκκλησία. Στη συνέχεια παρουσιάσαμε αναλυτικά το ιστορικό πλαίσιο της αναγνώρισης και της ανακήρυξης των αγίων. Ακόμη αναφερθήκαμε αναλυτικά στη έννοια του μαρτυρίου στην ορθόδοξη εκκλησία, και μας απασχόλησε ποιοι είναι οι νέοι μάρτυρες. Ένα άλλο θέμα που θίξαμε ήταν η σύγχρονη πραγματικότητα της εκκλησία της Αντιόχειας. Ασχοληθήκαμε επιπλέον με την πρόταση μεθοδολογίας ανακήρυξης της αγιότητας ενός χριστιανού μαρτύρα στο πόλεμο της Συρίας
description: The purpose of the thesis was to identify the recognition of Christian martyrs during the war, the case of the patriarchate of Antioch. We looked at the recognition and declaration of saints in the Orthodox church. Then we presented in detail the historical framework for the recognition and designation of saints. We also discussed in detail the concept of martyrdom in the Orthodox church, and we were concerned about who the new martyrs are. Another issue we raised was the Contemporary reality of the Antioch church. We have also dealt with the proposal for a methodology to declare the holiness of a Christian martyrdom in the Syrian war
Reporting Revenge Porn: a Preliminary Expert Analysis
Creators: name: De Angeli, A.
name: Falduti, M.
name: Blanco, M. Menendez
name: Tessaris, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: In our research, we focus on the response to the non-consensual distribution of intimate or sexually explicit digital images of adults, also referred as revenge porn, from the point of view of the victims. In this paper, we present a preliminary expert analysis of the process for reporting revenge porn abuses in selected content sharing platforms. Among these, we included social networks, image hosting websites, video hosting platforms, forums, and pornographic sites. We looked at the way to report abuse, concerning both the non-consensual online distribution of private sexual image or video (revenge pornography), as well as the use of deepfake techniques, where the face of a person can be replaced on original visual content with the aim of portraying the victim in the context of sexual behaviours. This preliminary analysis is directed to understand the current practices and potential issues in the procedures designed by the providers for reporting these abuses.
Matching perturbative and Parton Shower corrections to Bhabha process at flavour factories
Creators: name: Balossini, G.
name: Calame, C. M. Carloni
name: Montagna, G.
name: Nicrosini, O.
name: Piccinini, F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report on a high-precision calculation of the Bhabha process in Quantum Electrodynamics, of interest for precise luminosity determination of electron-positron colliders involved in R measurements in the region of hadronic resonances. The calculation is based on the matching of exact next-to-leading order corrections with a Parton Shower algorithm. The accuracy of the approach is demonstrated in comparison with existing independent calculations and through a detailed analysis of the main components of theoretical uncertainty, including two-loop corrections, hadronic vacuum polarization and light pair contributions. The calculation is implemented in an improved version of the event generator BABAYAGA with a theoretical accuracy of the order of 0.1%. The generator is now available for high-precision simulations of the Bhabha process at flavour factories.
description: 34 pages, 8 figures, uses elsart.cls. Version to appear on Nuclear Physics B
What to learn from dilepton transverse momentum spectra in heavy-ion collisions?
Creators: name: Ruppert, Jorg
name: Renk, Thorsten
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently the NA60 collaboration has presented high precision measurements of dimuon spectra double differential in invariant mass $M$ and transverse pair momentum $p_T$ in In-In collisions at $158 {\rm AGeV}$. While the $M$-dependence is important for an understanding of in-medium changes of light vector mesons and is $p_T$ integrated insensitive to collective expansion, the $p_T$-dependence arises from an interplay between emission temperature and collective transverse flow. This fact can be exploited to derive constraints on the evolution model and in particular on the contributions of different phases of the evolution to dimuon radiation into a given $M$ window. We present arguments that a thermalized evolution phase with $T > 170 {\rm MeV}$ leaves its imprint on the spectra.
description: Contributed to 19th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions: Quark Matter 2006 (QM 2006), Shanghai, China, 14- 20 Nov 2006
Ploșnița verde sudică în cultivarea Soiei
Creators: name: Petrović, Kristina
name: Milovac, Željko
name: Đorđević, Vuk
name: Balešević Tubić, Svetlana
name: Vasiljević, Marjana
Publisher: name: Zenodo
Year: 2022
Subjects: soybean
pests
crop protection

description: Gândacii cu scut (specii de insecte din superfa­milia Pentatomoidea) reprezintă insecte dăună­toare serioase în producția de soia la nivel mon­dial. Aceștia sunt cunoscuți, la fel, sub numele de gândaci puturoși, datorită capacității lor de a emana un miros urât puternic prin glande. Două specii au devenit mai frecvente în ultimii ani în Europa: ploșnița verde sudică (Nezara viridula) și ploșnița marmorata (Halyomorpha halys). Ploșnița verde sudică este o specie cosmopolită. Este o specie polifagă și dăunează unui număr mare de culturi de câmp și legume, soia fiind cultura preferată. Shield beetles (insect species of the superfamily Pentatomoidea) are serious insect pests in soybean production worldwide. They are also known as stink bugs because of their ability to emit a strong foul odour through their glands. Two species have become more common in recent years in Europe: the southern green cockroach (Nezara viridula) and the marbled cockroach (Halyomorpha halys). The southern green shield bug is a cosmopolitan species. It is a polyphagous species and damages a large number of field and vegetable crops, soybean being the preferred crop.
In situ growth regime characterization of cubic GaN using reflection high energy electron diffraction
Creators: name: Schoermann, J.
name: Potthast, S.
name: As, D. J.
name: Lischka, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Cubic GaN layers were grown by plasma-assisted molecular beam epitaxy on 3C-SiC (001)substrates. In situ reflection high energy electron diffraction was used to quantitatively determine the Ga coverage of the GaN surface during growth. Using the intensity of the electron beam as a probe,optimum growth conditions of c-GaN were found when a 1 ML Ga coverage is formed at the surface. 1 micrometer thick c-GaN layers had a minimum surface roughness of 2.5 nm when a Ga coverage of 1 ML was established during growth. These samples revealed also a minimum full width at half maximum of the (002)rocking curve.
description: 3pages with 4 figures
Asymptotic dimension and uniform embeddings
Creators: name: Gal, S. R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F69, 20F65, 20H15; 20E22, 54F45, 51F99

description: We show that the type function of a space with finite asymptotic dimension estimates its Hilbert (or any $l^p$) compression. The method allows to obtain the lower bound of the compression of the lamplighter group $Z\wr Z$, which has infinite asymptotic dimension.
description: 17 pages, no figures
Παραμετρική σπουδή της μονότονης και ανακυκλιζόμενης μηχανικής συμπεριφοράς εδάφους-αγωγού με την μέθοδο των πεπερασμένων στοιχείων
Creators: name: Μίξιος, Κωνσταντίνος Ευστρατίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Αλληλεπίδραση εδάφους-αγωγού
Μονοτονική φόρτιση αγωγού
Κυκλική φόρτιση αγωγού
Soil-pipe interaction
Pipe monotonic loading
Pipe cyclic loading

description: H παρούσα εργασία παρουσιάζει την παραμετρική μελέτη αγωγών φυσικών ορυκτών καυσίμων με την αλληλεπίδραση με το περιβάλλον έδαφος. Για την υλοποίηση της παραμετρικής μελέτης δημιουργήθηκαν προσομοιώματα, με την χρήση του προγράμματος πεπερασμένων στοιχείων OpenSees, τα οποία βαθμονομήθηκαν με διαθέσιμα πειραματικά αποτελέσματα (από το University of Toronto, Prof. Oh-Sung Kwon, Kyriakos Tryfonos, PhD student), Πιο συγκεκριμένα, δημιουργήθηκαν 5 μοντέλα πεπερασμένων στα οποία το έδαφος είχε χαρακτηριστικά χαλαρής άμμου και η διάμετρος του αγωγού ήταν 50mm. Η κύρια γεωμετρική διαφορά που εμφανίζεται στα εν λόγω μοντέλα πεπερασμένων στοιχείων είναι το αδιάστατο βάθος ταφής του αγωγού. Στα προσομοιώματα αυτά πραγματοποιήθηκε μονοτονική και κυκλική φόρτιση, με μοτίβο φόρτισης ίδιο με αυτό των πειραμάτων. Επιπλέον, δημιουργήθηκαν μοντέλα πεπερασμένων στοιχείων με διάμετρο αγωγού 100mm για τρία διαφορετικά αδιάστατα βάθη ταφής του αγωγού. Όπως και πριν τα προσομοιώματα αυτά, υποβλήθηκαν σε μονοτονική φόρτιση. Όλα τα παραπάνω μοντέλα βαθμονομήθηκαν με τέτοιον τρόπο, αξιοποιώντας όλες τις διαθέσιμες πληροφορίες για την ποιότητα του εδάφους, ώστε τα αποτελέσματα που παρέχουν να είναι όμοια με αυτά των πειραματικών διεργασιών
description: The analyses of the soil-structure interaction phenomenon can be invoked to improve the planning and design of buried pipelines, to guide monitoring, and to reduce the risk of damage and failure. In this thesis, a parametric study was conducted to investigate the mechanical behavior of the soil-pipe interaction utilizing the Finite Element program OpenSees. Raw data from small scale laboratory tests, which were conducted at the University of Toronto (Prof. Oh-Sung Kwon, Tryfonos Kyriakos, PhD student), were used to develop and calibrate numerical models. The numerical simulations are divided in two separate series: in the first, the pipe diameter is 50mm; in the second series, the pipe diameter is 100mm. Loose sand soil properties were used. The main parameter that changes in the numerical models that can be easily noticed is the dimensionless buried depth of the pipe. To be more specific, for the 50mm diameter pipe, 5 models with different dimensionless buried depth were developed, and for the 100mm diameter pipe, 3 models with different dimensionless buried depth were developed. All the above-mentioned models were imposed in monotonic loading, with respect to the loading protocols of the laboratory tests. The numerical models were calibrated to fit the experimental results utilizing all the necessary data
Facial expression and attributes recognition based on multi-task learning of lightweight neural networks
Creators: name: Savchenko, Andrey V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: 68T10

description: In this paper, the multi-task learning of lightweight convolutional neural networks is studied for face identification and classification of facial attributes (age, gender, ethnicity) trained on cropped faces without margins. The necessity to fine-tune these networks to predict facial expressions is highlighted. Several models are presented based on MobileNet, EfficientNet and RexNet architectures. It was experimentally demonstrated that they lead to near state-of-the-art results in age, gender and race recognition on the UTKFace dataset and emotion classification on the AffectNet dataset. Moreover, it is shown that the usage of the trained models as feature extractors of facial regions in video frames leads to 4.5% higher accuracy than the previously known state-of-the-art single models for the AFEW and the VGAF datasets from the EmotiW challenges. The models and source code are publicly available at https://github.com/HSE-asavchenko/face-emotion-recognition.
description: 14 pages, 3 figures, accepted at IEEE SISY 2021
Time-domain based steady-state initialization for the EMTP
Creators: name: Perkins, Brian K.
Publisher: name: University of British Columbia
Year: 2008

description: The existing steady-state initialization algorithm in the electromagnetic transients program EMTP is based on a frequency-domain admittance method. This yields a simple, efficient solution for linear, lumped element networks. However, the basic algorithm cannot be easily extended to handle nonlinear and variable structure networks. A time-domain based steady-state initialization algorithm is formulated for the three classes of lumped element networks, namely, linear, nonlinear and variable structure. The primary contribution of this work is that each network element does not require a dedicated steady-state model and a separate steady-state solution algorithm. Furthermore, as the proposed initialization process is consistent with the time-domain character of the transient simulations themselves, the proposed algorithm can be incorporated into existing electromagnetic transient programs with minimal programming effort.
Two-dimensional array of microtraps with atomic shift register on a chip
Creators: name: Whitlock, S.
name: Gerritsma, R.
name: Fernholz, T.
name: Spreeuw, R. J. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Arrays of trapped atoms are the ideal starting point for developing registers comprising large numbers of physical qubits for storing and processing quantum information. One very promising approach involves neutral atom traps produced on microfabricated devices known as atom chips, as almost arbitrary trap configurations can be realised in a robust and compact package. Until now, however, atom chip experiments have focused on small systems incorporating single or only a few individual traps. Here we report experiments on a two-dimensional array of trapped ultracold atom clouds prepared using a simple magnetic-film atom chip. We are able to load atoms into hundreds of tightly confining and optically resolved array sites. We then cool the individual atom clouds in parallel to the critical temperature required for quantum degeneracy. Atoms are shuttled across the chip surface utilising the atom chip as an atomic shift register and local manipulation of atoms is implemented using a focused laser to rapidly empty individual traps.
description: 6 pages, 4 figures
The classical limit of Schrödinger operators in the framework of Berezin quantization and spontaneous symmetry breaking as emergent phenomenon
Creators: name: Moretti, Valter
name: van de Ven, Christiaan J. F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Operator Algebras (math.OA)
subject: Quantum Algebra (math.QA)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The algebraic properties of a strict deformation quantization are analysed on the classical phase space $\bR^{2n}$. The corresponding quantization maps enable us to take the limit for $\hbar \to 0$ of a suitable sequence of algebraic vector states induced by $\hbar$-dependent eigenvectors of several quantum models, in which the sequence converges to a probability measure on $\bR^{2n}$, defining a classical algebraic state. The observables are here represented in terms of a Berezin quantization map which associates classical observables (functions on the phase space) to quantum observables (elements of $C^*$ algebras) parametrized by $\hbar$. The existence of this classical limit is in particular proved for ground states of a wide class of Schrödinger operators, where the classical limiting state is obtained in terms of a Haar integral. The support of the classical state (a probability measure on the phase space) is included in certain orbits in $\bR^{2n}$ depending on the symmetry of the potential. In addition, since this $C^*$-algebraic approach allows for both quantum and classical theories, it is highly suitable to study the theoretical concept of spontaneous symmetry breaking (SSB) as an emergent phenomenon when passing from the quantum realm to the classical world by switching off $\hbar$. To this end, a detailed mathematical description is outlined and it is shown how this algebraic approach sheds new light on spontaneous symmetry breaking in several physical models.
description: 44 pages, no figures, minor changes, in press in IJGMMP
Προστασία και αξιοποίηση της φυτικής βιοποικιλότητας του Ολύμπου
Creators: name: Παππάς, Δημήτριος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Φυσικό Περιβάλλον
Προστασία και αξιοποίηση φυτικής βιοποικιλότητας
Όλυμπος
Natural environment
Protection and exploitation of plant biodiversity
Olympus

description: Ο άνθρωπος εκ του φυσικού δεν μπορεί, και μέσα στα επόμενα χρονικά πλαίσια, θα εξακολουθήσει να μην έχει την κυριότητα του ελέγχου της φύσης. Σε κάποιες περιπτώσεις μπορεί και επεμβαίνει, μέσω της πρόληψης και καταστολής διαφόρων καταστάσεων, όμως δεν έχει τη δυνατότητα και την ικανότητα να γίνει ρυθμιστής του κλίματος, το οποίο ακολουθεί τους «δικούς του» νόμους με διεργασίες εκ των οποίων οι περισσότερες είναι άγνωστες. Η προστασία και η αξιοποίηση της φυτικής βιοποικιλότητας του γήινου φυσικού περιβάλλοντος, ως μία από τις προαναφερόμενες ενέργειες, καθίσταται πλέον απαραίτητη και θα αποφέρει οφέλη. Εκτός του ότι οι φυσικές περιοχές θα διατηρηθούν όσο γίνεται ακέραιες, αν όχι και σε καλύτερη κατάσταση, η οικονομικότητά τους θα αναπτυχθεί, υπό το πρίσμα της αειφορίας των φυσικών πόρων. Το σπουδαιότερο όφελος, θα είναι ότι ο άνθρωπος για πρώτη φορά θα προσπαθήσει να ρυθμίσει το κλίμα, μέσω της ορθολογικής διατήρησης και αξιοποίησης των φυσικών οικοσυστημάτων. Με γνώμονα αυτή την ανάγκη, θα γίνει μία ανάλογη έρευνα για τον Όλυμπο, ο οποίος παίζει καθοριστικότατο ρόλο στην ρύθμιση του κλίματος της ευρύτερης γεωγραφικής περιοχής, και αποτελεί οικοσύστημα μοναδικής αξίας και παγκοσμίου φήμης. Στο πλαίσιο αυτό καταγράφονται και εντοπίζονται τα σημαντικότερα φυτικά taxa του Ολύμπου, υπογραμμίζεται η χρηστική τους αξία, ο κίνδυνος που διατρέχουν και τα μέτρα προστασίας που πρέπει να ληφθούν
description: Man by nature cannot, and within the following time frames, continue to have no control over nature. In some cases it can and does intervene, through the prevention or suppression of various situations, but it does not have the capacity and ability to become a climate regulator, following its own "laws" with processes most of which are unknown. The protection and exploitation of the plant biodiversity of the earth's natural environment, as one of the above actions, is now indispensable and will bring benefits. In addition to keeping the natural areas as intact, if not better, their economies will be developed in the light of the sustainability of natural resources. The most important benefit will be that for the first time man will try to regulate the climate, through rational conservation and exploitation of natural ecosystems. In view of this urgent need, a similar study will be carried out on Olympus, which plays a crucial role in regulating the climate of the wider geographical area, and is an ecosystem of unique value and world-renown. In this context, the most important plant taxa of Olympus are recorded and identified, their utility value, the risk they face and the protective measures to be taken
Additional file 6 of A 20-year bibliometric analysis of Fuchs endothelial corneal dystrophy: from 2001 to 2020
Creators: name: Lin, Feng
name: Zhang, Luoli
name: Wang, Yimin
name: Fu, Dan
name: Wang, Yuliang
name: Zhou, Xingtao
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: Plant Biology

description: Additional file 6: Supplementary Figure 5. Co-authorship analysis of authors. The size of a node is proportional to an author’s number of collaborations.
Predicting Covid-19 EMS Incidents from Daily Hospitalization Trends
Creators: name: Xie, Yangxinyu
name: Kulpanowski, David
name: Ong, Joshua
name: Nikolova, Evdokia
name: Tran, Ngoc Mai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Introduction: The aim of our retrospective study was to quantify the impact of Covid-19 on the temporal distribution of Emergency Medical Services (EMS) demand in Travis County, Austin, Texas and propose a robust model to forecast Covid-19 EMS incidents. Methods: We analyzed the temporal distribution of EMS calls in the Austin-Travis County area between January 1st, 2019, and December 31st, 2020. Change point detection was performed to identify critical dates marking changes in EMS call distributions, and time series regression was applied for forecasting Covid-19 EMS incidents. Results: Two critical dates marked the impact of Covid-19 on the distribution of EMS calls: March 17th, when the daily number of non-pandemic EMS incidents dropped significantly, and May 13th, by which the daily number of EMS calls climbed back to 75% of the number in pre-Covid-19 time. The new daily count of the hospitalization of Covid-19 patients alone proves a powerful predictor of the number of pandemic EMS calls, with an r2 value equal to 0.85. In particular, for every 2.5 cases where EMS takes a Covid-19 patient to a hospital, one person is admitted. Conclusion: The mean daily number of non-pandemic EMS demand was significantly less than the period before Covid-19 pandemic. The number of EMS calls for Covid-19 symptoms can be predicted from the daily new hospitalization of Covid-19 patients. These findings may be of interest to EMS departments as they plan for future pandemics, including the ability to predict pandemic-related calls in an effort to adjust a targeted response.
Galaxy Clusters Associated with Short GRBs. II. Predictions for the Rate of Short GRBs in Field and Cluster Early-Type Galaxies
Creators: name: Shin, Min-Su
name: Berger, Edo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We determine the relative rates of short GRBs in cluster and field early-type galaxies as a function of the age probability distribution of their progenitors, P(τ) \propto τ^n. This analysis takes advantage of the difference in the growth of stellar mass in clusters and in the field, which arises from the combined effects of the galaxy stellar mass function, the early-type fraction, and the dependence of star formation history on mass and environment. This approach complements the use of the early- to late-type host galaxy ratio, with the added benefit that the star formation histories of early-type galaxies are simpler than those of late-type galaxies, and any systematic differences between progenitors in early- and late-type galaxies are removed. We find that the ratio varies from R(cluster)/R(field) ~ 0.5 for n = -2 to ~ 3 for n = 2. Current observations indicate a ratio of about 2, corresponding to n ~ 0 - 1. This is similar to the value inferred from the ratio of short GRBs in early- and late-type hosts, but it differs from the value of n ~ -1 for NS binaries in the Milky Way. We stress that this general approach can be easily modified with improved knowledge of the effects of environment and mass on the build-up of stellar mass, as well as the effect of globular clusters on the short GRB rate. It can also be used to assess the age distribution of Type Ia supernova progenitors.
description: ApJ accepted version
Pion Freeze-Out Time in Pb+Pb Collisions at 158 A GeV/c Studied via pi-/pi+ and K-/K+ Ratios
Creators: name: WA98 Collaboration
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The effect of the final state Coulomb interaction on particles produced in Pb+Pb collisions at 158 A GeV/c has been investigated in the WA98 experiment through the study of the pi-/pi+ and K-/K+ ratios measured as a function of transverse mass. While the ratio for kaons shows no significant transverse mass dependence, the pi-/pi+ ratio is enhanced at small transverse mass values with an enhancement that increases with centrality. A silicon pad detector located near the target is used to estimate the contribution of hyperon decays to the pi-/pi+ ratio. The comparison of results with predictions of the RQMD model in which the Coulomb interaction has been incorporated allows to place constraints on the time of the pion freeze-out.
description: 9 pages, 12 figures
Transitions in entanglement complexity in random quantum circuits by measurements
Creators: name: Oliviero, Salvatore F. E.
name: Leone, Lorenzo
name: Hamma, Alioscia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Random Clifford circuits doped with non Clifford gates exhibit transitions to universal entanglement spectrum statistics[1] and quantum chaotic behavior. In [2] we proved that the injection of $O(n)$ non Clifford gates into a $n$-qubit Clifford circuit drives the transition towards the universal value of the purity fluctuations. In this paper, we show that doping a Clifford circuit with $O(n)$ single qubit non Clifford measurements is both necessary and sufficient to drive the transition to universal fluctuations of the purity.
Εκκλησία, Ενότητα, Οικουμένη στον Ιωάννη Ν. Καρμίρη
Creators: name: Κασμαρίκου, Δήμητρα Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Ιωάννης Καρμίρης
Οικουμενικοί Διάλογοι
Σωτηρία των ανθρώπων
John Karmiris
Ecumenical Dialogues
Human salvation

description: Σκοπός της εργασίας ήταν να παρουσιαστούν τα έργα του θεολόγου Ιωάννη Καρμίρη, ο οποίος ήταν αξιόλογος θεολόγος και ακαδημαϊκός του 20ου αιώνα. Αρχικά παρουσιάστηκε ένα μέρος από το έργο του «Ορθόδοξη Εκκλησιολογία», έπειτα η παγκοσμιότητα της εν Χριστώ σωτηρίας και τέλος η πορεία της Ορθόδοξης Εκκλησίας κατά τους διαλόγους με τις ετερόδοξες Εκκλησίες υπό το πρίσμα του Ιωάννη Καρμίρη
description: The purpose of the work was to present the works of theologian Ioannis Karmiris, who was a remarkable theologian and scholar of the 20th century. Initially a part of his work "Orthodox Ecclesiology" was presented, then the universality of Christ's salvation and finally the course of the Orthodox Church in dialogues with other Churches in the light of John Karmiris
Open Government Data: Policies, Initiatives, and Opportunities for Information Science Graduates
Creators: name: Mattern, Eleanor
Publisher: name: Unknown
Year: 2019
Subjects: subject: open data
subject: civic information

description: Globally, we see examples of governments leveraging technology to make government data more accessible and usable by the public. Policy and law, ideals of transparency, and a recognition of the research, commercial, and societal value of these data all motivate open government data initiatives. In turn, we have seen the impact of these programs. Developers and “civic hackers” are using open data to build applications that provide users new ways to interact with their communities; researchers are making new discoveries about public health, crime, and the economy; and nonprofit organizations are designing more responsive services to meet their users’ needs. To realize the full potential of open data, there is a space and need for information stewards, programmers, data scientists, and other technologists. This presentation will introduce examples of open data initiatives in the United States and examine the interconnections between these efforts and the study and practice of information, technology, and computing. We will consider existing approaches for publishing data and the curation practices that facilitate success of these open data initiatives, including metadata, documentation, and file formats. This presentation will highlight some of the ethical challenges in open data and the valuable skills and mindsets that information and computing professionals can contribute to addressing them.
Συνθήκες ενδοτραχειακής διασωλήνωσης με ή χωρίς χορήγηση αποκλειστών της νευρομυϊκής σύναψης σε παιδιά : μια προοπτική μελέτη παρατήρησης
Creators: name: Τολιοπούλου, Αικατερίνη Σταύρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: νευρομυϊκοί αποκλειστές
συνθήκες διασωλήνωσης
παιδιά
neuromuscular blocking agents
intubation conditions
children

description: Σκοπός αυτής της προοπτικής μελέτης παρατήρησης είναι η σύγκριση των συνθηκών ενδοτραχειακής διασωλήνωσης σε παιδιατρικούς ασθενείς, ηλικίας 4 ως 10 ετών, ανάλογα με τη χρήση ή μη αποκλειστών νευρομυϊκής σύναψης. Το δείγμα μας περιλαμβάνει 37 ασθενείς σε 2 ομάδες. Η ομάδα Α αποτελείται από 18 ασθενείς που έλαβαν ροκουρόνιο για την ενδοτραχειακή διασωλήνωση και η ομάδα Β από 19 ασθενείς που δεν έλαβαν ροκουρόνιο ή άλλον αποκλειστή της νευρομυϊκής σύναψης για τη διασωλήνωση. Οι συνθήκες ενδοτραχειακής διασωλήνωσης αξιολογήθηκαν με βάση το Copenhagen Consensus Score των Viby-Mogensen και συνεργατών. Σύμφωνα με τα αποτελέσματά μας, οι συνθήκες διασωλήνωσης για την ομάδα Α ήταν κλινικά αποδεκτές σε 18 παιδιά (100%), ενώ στην ομάδα Β ήταν κλινικά αποδεκτές σε 16 παιδιά (84,2%) και μη αποδεκτές σε 3 παιδιά (15,8%). (p=0,23>0,05) Οι συνθήκες διασωλήνωσης για την ομάδα Α ήταν εξαιρετικές σε 17 παιδιά (94,4%) και καλές σε 1 παιδί (5,6%), ενώ για την ομάδα Β ήταν εξαιρετικές σε 8 παιδιά (42,1%), καλές σε 8 παιδιά (42,1%) και κακές σε 3 παιδιά (15,8%). (p=0,002<0,05) Συμπεραίνουμε, λοιπόν, ότι η εξασφάλιση κλινικά αποδεκτών συνθηκών διασωλήνωσης επιτυγχάνεται στον ίδιο βαθμό με ή χωρίς τη χορήγηση νευρομυϊκών αποκλειστών σε παιδιατρικό πληθυσμό ηλικίας 4 έως 10 ετών
description: The purpose of this prospective observational study is to compare the conditions of endotracheal intubation in pediatric patients aged 4 to 10 years, depending on the use or not of neuromuscular blocking agents. Our sample included 37 patients in 2 groups. Group A consists of 18 patients who received rocuronium for endotracheal intubation and group B consists of 19 patients who did not receive rocuronium or any other neuromuscular blocking agent for intubation. Endotracheal intubation conditions were evaluated based on the Copenhagen Consensus Score of Viby-Mogensen et al. According to our results, the intubation conditions for group A were clinically acceptable in 18 children (100%). In group B, the intubation conditions were clinically acceptable in 16 children (84.2%) and unacceptable in 3 children (15.8) %). (p = 0.23> 0.05) The intubation conditions for Group A were excellent in 17 children (94.4%) and good in 1 child (5.6%). In Group B the intubation conditions were excellent in 8 children (42.1%), good in 8 children (42.1%) and poor in 3 children (15.8%). (p = 0.002 <0.05) We conclude that clinically acceptable intubation conditions are achieved to the same extent with or without the use of neuromuscular blocking agents to a pediatric population of 4 to 10 years