cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Magnetoresistance and Kondo effect in the nodal-line semimetal VAs$_2$
Creators: name: Chen, Shuijin
name: Lou, Zhefeng
name: Zhou, Yuxing
name: Chen, Qin
name: Xu, Binjie
name: Du, Jianhua
name: Yang, Jinhu
name: Wang, Haangdong
name: Fang, Minghu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We performed calculations of the electronic band structure and the Fermi surface as well as measured the longitudinal resistivity $ρ_{xx}(T,H)$, Hall resistivity $ρ_{xy}(T,H)$, and magnetic susceptibility as a function of temperature and various magnetic fields for VAs$_2$ with a monoclinic crystal structure. The band structure calculations show that VAs$_2$ is a nodal-line semimetal when spin-orbit coupling is ignored. The emergence of a minimum at around 11 K in $ρ_{xx}(T)$ measured at $H$ = 0 demonstrates that an additional magnetic impurity (V$^{4+}$, $S$ = 1/2) occurs in VAs$_2$ single crystals, evidenced by both the fitting of $ρ_{xx}(T)$ data and the susceptibility measurements. It was found that a large positive magnetoresistance (MR) reaching 649\% at 10 K and 9 T, its nearly quadratic field dependence, and a field-induced up-turn behavior of $ρ_{xx}(T)$ emerge also in VAs$_2$, although MR is not so large due to the existence of additional scattering compared with other topological nontrival/trival semimetals. The observed properties are attributed to a perfect charge-carrier compensation, which is evidenced by both calculations relying on the Fermi surface and the Hall resistivity measurements. These results indicate that the compounds containing V ($3d^3 4s^2$) element as a platform for studying the influence of magnetic impurities to the topological properties.
description: 8 pages, 5 figures. arXiv admin note: text overlap with arXiv:2007.04814
Stories of becoming a philosophy major
Creators: name: Hahn, Ruth H.S.
Publisher: name: University of British Columbia
Year: 2009

description: This study explored the pattern of how students at the University of British Columbia became philosophy majors. A narrative approach was utilized to develop a meaningful understanding of each participant's story. The stories were then analyzed for common themes and patterns. From this analysis, seven themes emerged which encompass the experience of becoming a philosophy major. The interconnections among themes outline an abstract narrative. Theoretical and practical implications for career development and career counselling are discussed.
Collapse and black hole formation in magnetized, differentially rotating neutron stars
Creators: name: Stephens, Branson C.
name: Duez, Matthew D.
name: Liu, Yuk Tung
name: Shapiro, Stuart L.
name: Shibata, Masaru
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The capacity to model magnetohydrodynamical (MHD) flows in dynamical, strongly curved spacetimes significantly extends the reach of numerical relativity in addressing many problems at the forefront of theoretical astrophysics. We have developed and tested an evolution code for the coupled Einstein-Maxwell-MHD equations which combines a BSSN solver with a high resolution shock capturing scheme. As one application, we evolve magnetized, differentially rotating neutron stars under the influence of a small seed magnetic field. Of particular significance is the behavior found for hypermassive neutron stars (HMNSs), which have rest masses greater the mass limit allowed by uniform rotation for a given equation of state. The remnant of a binary neutron star merger is likely to be a HMNS. We find that magnetic braking and the magnetorotational instability lead to the collapse of HMNSs and the formation of rotating black holes surrounded by massive, hot accretion tori and collimated magnetic field lines. Such tori radiate strongly in neutrinos, and the resulting neutrino-antineutrino annihilation (possibly in concert with energy extraction by MHD effects) could provide enough energy to power short-hard gamma-ray bursts. To explore the range of outcomes, we also evolve differentially rotating neutron stars with lower masses and angular momenta than the HMNS models. Instead of collapsing, the non-hypermassive models form nearly uniformly rotating central objects which, in cases with significant angular momentum, are surrounded by massive tori.
description: Submitted to a special issue of Classical and Quantum Gravity based around the New Frontiers in Numerical Relativity meeting at the Albert Einstein Institute, Potsdam, July 17-21, 2006
Κοινωνική ανάπτυξη και στάσεις απέναντι στην αναπηρία. Μία μελέτη κοινωνικών παραμέτρων και στάσεων μαθητών δημοτικού σχολείου σε τμήματα ένταξης:
Creators: name: Αραμπατζή, Αθηνά Σταύρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Κοινωνική ανάπτυξη
Στάσεις
Ατομα με ειδικές εκπαιδευτικές ανάγκες
Τμήματα ένταξης
Δημοτικό σχολείο
Social development
Attitudes
Childrens with special education needs
Inclusive settings
Primary school

description: Σκοπός της παρούσας μελέτης ήταν η αποτίμηση του επιπέδου κοινωνικής ανάπτυξης (ΚΑ) [επιθετική (ΕΣ) και κοινωνικά ανασφαλής συμπεριφορά (ΚΑΣ)] και των στάσεων απέναντι στην αναπηρία των μαθητών που φοιτούν σε δημοτικά σχολεία με τμήματα ένταξης, καθώς και: α) η διερεύνηση της σχέσης μεταξύ της ΚΑ και των στάσεων, β) αν η ένταξη των παιδιών με ειδικές εκπαιδευτικές ανάγκες επιδρά στην ΚΑ και στις στάσεις των μαθητών της τυπικής τάξης, γ) ο ρόλος του φύλου ως προς τις στάσεις. Στην έρευνα συμμετείχαν 411 μαθητές Ε΄ και ΣΤ΄ δημοτικού (22 τάξεις με ΤΕ και 9 χωρίς ΤΕ, 183 Α και 228 Κ). Ως ερευνητικά εργαλεία χρησιμοποιήθηκαν το Πρωτόκολλο Παρατήρησης Επιθετικής Συμπεριφοράς, το Πρωτόκολλο Παρατήρησης Κοινωνικά Ανασφαλούς Συμπεριφοράς( Mouratidou et al, 2007) και το τροποποιημένο CAIPE-R (Block, 1995). Για την αποτίμηση χρησιμοποιήθηκαν t-test για ανεξάρτητα δείγματα και pearson’s corellation (p
description: The purpose of the present study was to evaluate social development (SD) [aggressive (AB) and social insecure behavior (SIB) and attitudes towards disability of primary schools with inclusive settings (IS) students. Further goals were: a) the investigation of relatioship between SD and attitudes, b) whether childrens’ without diasabilities inclusion affect on SD and attitudes of students without diasabilities c) the relationship between gender and attitudes. 411 students of fifth and sixth grades participated in this study (22 classes with IS and 9 without IS, 183 boys and 228 girls). Checklist of Aggressive Behavior, Checklist of Social Insecure Behavior (Mouratidou et al, 2007) and CAIPE-R revised (Block, 1995) were used. For analysis independed-samples t-test and pearson’s corellation were used (p
title: Probabilistic Modeling of Erroneous Human Response to In-Vehicle Route Guidance Systems A Domain Decomposition-Based Algorithm
Creators: name: Farooq, Abdullah Al
Publisher: name: Old Dominion University Libraries
Year: 2013

description: Drivers are generally assumed to follow the shortest route to their destinations prescribed by in-vehicle route navigation systems without mistake. However, it is not uncommon that drivers make mistakes when there are complex intersections along the route to miss turns. Such mistakes would result in following a longer route than the optimal one. In this thesis, research has been conducted to analyze the effects of the number of intersections in the shortest routes of different O-D ( origin-destination) pairs. While different formulations can be employed to describe such "driving with error" model, a Domain Decomposition (DD) partitioning algorithm has been developed for route guidance systems in order to recommend optimal routes to the drivers. A numerical comparison among different solution approaches has been conducted in this thesis.
Definiteness in Russian bare nominal kinds
Creators: name: Borik, Olga
name: M.-Teresa Espinal
Publisher: name: Zenodo
Year: 2019

description: In the literature on generic nominal reference, it is usually pointed out that in
 Russian, both singular and plural nominal expressions can have a generic reference
 (Chierchia 1998; Doron 2003; Dayal 2004). The main contribution of this article is
 to propose an explicit analysis for composing definite kinds from bare nominals
 in this language. We provide independent empirical support for the definiteness
 of apparent bare nominals in argument position of kind-level predicates and argue
 that definiteness is to be associated with a null D(eterminer), interpreted as the
 iota operator. The general hypothesis we defend is that definite kinds, even in a
 language without articles such as Russian, encode definiteness semantically and
 syntactically.
Survey and Visual Inspection of Keystone Block Wall and Embankment Slide at Mist Lake Plaza in Lexington, Kentucky
Creators: name: Fleckenstein, L. John
name: Allen, David L.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1998
Subjects: subject: Transportation Engineering

description: The Kentucky Transportation Center was requested by Bhate Engineering Corporation and A.B. Shopping Center Properties, Inc. to evaluate and monitor apparent movement in the Keystone Block retaining structure and the earth embankment located next to the Walmart Department Store at Mist Lake Plaza in Lexington, Kentucky. In June 1997, a report (KTC-97-11) was submitted which summarized work that had been conducted prior to June of 1997. The initial report included results of the inspection of the surface drainage, inspection of subsurface storm water drainage, inspection of the embankment, and inspection and photo-logging of visible wall distress. In June 1997, several monitoring points were established on the face of the wall and the parking area behind the wall. This report discusses the results of this monitoring.
Skew-symmetric endomorphisms in $\mathbb{M}^{1,n}$: A unified canonical form with applications to conformal geometry
Creators: name: Mars, Marc
name: Peón-Nieto, Carlos
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We show the existence of families of orthonormal, future directed bases which allow to cast every skew-symmetric endomorphism of $\mathbb{M}^{1,n}$ ($\mathrm{SkewEnd}(\mathbb{M}^{1,n})$) in a single canonical form depending on a minimal number of parameters. This canonical form is shared by every pair of elements in $\mathrm{SkewEnd}(\mathbb{M}^{1,n})$ differing by an orthochronous Lorentz transformation, i.e. it defines the orbits of the orthochronous Lorentz group under the adjoint action on its algebra. Using this form, we obtain the quotient topology of $\mathrm{SkewEnd}(\mathbb{M}^{1,n})/O^+(1,n)$. From known relations between $\mathrm{SkewEnd}(\mathbb{M}^{1,n})$ and the conformal Killing vector fields (CKVFs) of the sphere $\mathbb{S}^n$, a canonical form for CKVFs follows immediately. This form is used to find adapted coordinates to an arbitrary CKVF that covers all cases at the same time. We do the calculation for even $n$ and obtain the case of odd $n$ as a consequence. Finally, we employ the adapted coordinates to obtain a wide class of TT-tensors for $n=3$, which provide Cauchy data at conformally flat null infinity $\mathscr{I}$. Specifically, this class of data is characterized for generating $Λ>0$-vacuum spacetimes with two-symmetries, one of which axial, admitting a conformally flat $\mathscr{I}$. The class of data is infinite dimensional, depending on two arbitrary functions of one variable as well as a number of constants. Moreover, it contains the data for the Kerr-de Sitter spacetime, which we explicitly identify within.
description: 45 pages, 2 figures
Low-Mass Dwarf Template Spectra from the Sloan Digital Sky Survey
Creators: name: Bochanski, John J.
name: West, Andrew A.
name: Hawley, Suzanne L.
name: Covey, Kevin R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present template spectra of low-mass (M0-L0) dwarfs derived from over 4,000 Sloan Digital Sky Survey (SDSS) spectra. These composite spectra are suitable for use as medium-resolution (R ~ 1,800) radial velocity standards. We report mean spectral properties (molecular bandhead strengths,equivalent widths) and use the templates to investigate the effects of magnetic activity and metallicity on the spectroscopic and photometric properties of low-mass stars.
description: 16 pages, 11 Figures, accepted to the Astronomical Journal, low-resolution figures included. Full-resolution images can be found at http://www.astro.washington.edu/bochansk/lowmass.pdf
Additional file 1 of The Japanese Critical Care Nutrition Guideline 2024
Creators: name: Nakamura, Kensuke
name: Yamamoto, Ryo
name: Higashibeppu, Naoki
name: Yoshida, Minoru
name: Tatsumi, Hiroomi
name: Shimizu, Yoshiyuki
name: Izumino, Hiroo
name: Oshima, Taku
name: Hatakeyama, Junji
name: Ouchi, Akira
name: Tsutsumi, Rie
name: Tsuboi, Norihiko
name: Yamamoto, Natsuhiro
name: Nozaki, Ayumu
name: Asami, Sadaharu
name: Takatani, Yudai
name: Yamada, Kohei
name: Matsuishi, Yujiro
name: Takauji, Shuhei
name: Tampo, Akihito
name: Terasaka, Yusuke
name: Sato, Takeaki
name: Okamoto, Saiko
name: Sakuramoto, Hideaki
name: Miyagi, Tomoka
name: Aki, Keisei
name: Ota, Hidehito
name: Watanabe, Taro
name: Nakanishi, Nobuto
name: Ohbe, Hiroyuki
name: Narita, Chihiro
name: Takeshita, Jun
name: Sagawa, Masano
name: Tsunemitsu, Takefumi
name: Matsushima, Shinya
name: Kobashi, Daisuke
name: Yanagita, Yorihide
name: Watanabe, Shinichi
name: Murata, Hiroyasu
name: Taguchi, Akihisa
name: Hiramoto, Takuya
name: Ichimaru, Satomi
name: Takeuchi, Muneyuki
name: Kotani, Joji
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: CQ1 Evidence profiles.
Evaluation of Corrugated Steel Pipe Culverts on KY 61, Cumberland County
Creators: name: Fleckenstein, L. John
name: Allen, David L.
name: Rister, Brad W.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1998
Subjects: subject: Transportation Engineering

description: In February of 1998, the Kentucky Transportation Cabinet requested that the Kentucky Transportation Center investigate three corrugated metal pipe culverts on the relocation project of KY 61. The pipes were installed in June and July of 1997. The embankments over the three pipes were completed In October of 1997. Based on the information that was gathered, it appears that the pipes were manufactured according to specifications. The gage of the pipe is on the lower end of acceptance. The pipes appear to have been well aligned and properly bedded. Some of the dents and buckles in the pipe may have been induced during the early stages of construction. The CL backfill along with the 10 gage pipe should have not been used together. At this time, the deflection monitoring points indicate that the culverts appear to be stable (A vertical change of l-Inch was recorded at Station 226+60. 250 feet from the inlet on April 8. 1997. This reading needs to be verified). It is evident that the clay backfill is the controlling factor at tho time. At the time the soil samples were taken, on the average for all three culverts the degree of saturation was 83 percent. It is uncertain at this time if the soil will become further saturated.
Pearl of Peace: Unmuting Women's Voices in Peacebuilding
Creators: name: Aseneta, Maria Lourdes
Publisher: name: Zenodo
Year: 2022
Subjects: Women in Peacebuilding
Gender and Peace Processes
Transformative Peacebuilding

description: The meaningful participation and leadership of women was key in the success of the Bangsamoro peace process in the Philippines. This study focuses on the communicative aspect of the sensemaking experiences of seven key women peacebuilders and explores the unmuting of women’s voices in peacebuilding from the lenses of gender, language, and tradition using hermeneutic phenomenology as research methodology. By integrating the different frames of narratives and conversations with these women peacebuilders, five major themes were derived in the synthesis of meanings, “making sense” of the sensemaking of the women peacebuilders. Integrating and refining the five interwoven themes using the hermeneutic circle has led to an illuminating “epiphany”: The overarching dimension of the sensemaking and communication experiences of women in peacebuilding is power.

Power, both internal and external, has the capacity to impact change in consciousness, culture, and political processes. This study contributes the Kite Flying Model in Place Communication for a deeper appreciation of how power interplays with peace in the meaningful engagement and leadership of women in peace processes. It also presents the Quadrant Matrix of Peace Communication that is useful for elvating peace communication approaches from simply engendered to “engendered.” Like the grain of sand that shifts the inner composite matter of the oyster to painstakingly give birth to an iridescent pearl, this study is paradigm-shifting as it navigated an unexplored terrain in the male-dominated seascape of peace and security to re-discover the pearl of peace.
Hot Plasma Flows and Oscillations in the Loop-top Region During the September 10 2017 X8.2 Solar Flare
Creators: name: Reeves, Katharine K.
name: Polito, Vanessa
name: Chen, Bin
name: Galan, Giselle
name: Yu, Sijie
name: Liu, Wei
name: Li, Gang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this study, we investigate motions in the hot plasma above the flare loops during the 2017 September 10 X8.2 flare event. We examine the region to the south of the main flare arcade, where there is data from the Interface Region Imaging Spectrograph (IRIS), and the Extreme ultraviolet Imaging Spectrometer (EIS) on Hinode. We find that there are initial blue shifts of 20--60 km/s observed in this region in the Fe XXI line in IRIS and the Fe XXIV line in EIS, and that the locations of these blue shifts move southward along the arcade over the course of about 10 min. The cadence of IRIS allows us to follow the evolution of these flows, and we find that at each location where there is an initial blue shift in the Fe XXIV line, there are damped oscillations in the Doppler velocity with periods of ~400 s. We conclude that these periods are independent of loop length, ruling out magnetoacoustic standing modes as a possible mechanism. Microwave observations from the Expanded Owens Valley Solar Array (EOVSA) indicate that there are non-thermal emissions in the region where the Doppler shifts are observed, indicating that accelerated particles are present. We suggest that the flows and oscillations are due to motions of the magnetic field that are caused by reconnection outflows disturbing the loop-top region.
description: 15 pages, 11 figures
Παράλληλος υπολογισμός ερωτημάτων κορυφογραμμής:
Creators: name: Βαλκανάς, Γεώργιος Ανδρέα
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Κορυφογραμμή
Βάσεις δεδομένων
Parallel computation
Skyline
Databases

description: Σκοπός της συγκεκριμένης διπλωματικής εργασίας είναι η εφαρμογή και αξιολόγηση συγκεκριμένων τεχνικών για τον υπολογισμό ερωτημάτων κορυφογραμμής (skyline queries) σε Βάσεις Δεδομένων (Β.Δ.), στα πλαίσια κατανεμημένων / παράλληλων συστημάτων. Αν και η μελέτη είναι γενική, το ενδιαφέρον μας επικεντρώνεται σε «ερωτήματα κορυφογραμμής υπό περιορισμούς» (constrained skyline queries). Τα (γενικού τύπου) ερωτήματα κορυφογραμμής προσελκύουν ιδιαίτερο ενδιαφέρον τον τελευταίο καιρό, καθώς έχουν ιδιαίτερη χρησιμότητα σε πληθώρα εφαρμογών, όπως π.χ. η εξόρυξη δεδομένων, η λήψη αποφάσεων βασιζόμενη σε πολλά κριτήρια κ.ά. Η απάντηση σε ένα skyline ερώτημα, όταν αυτό πραγματοποιείται σε μία Β.Δ. από |D| στοιχεία (tuples) με |S| χαρακτηριστικά το καθένα, αποτελείται από εκείνα τα στοιχεία της Β.Δ. για τα οποία δεν υπάρχουν άλλα που να τα κυριαρχούν. Διαισθητικά, ένα σημείο s κυριαρχεί ενός άλλου s’ όταν το s είναι το ίδιο καλό με το s’ ως προς όλα τα χαρακτηριστικά και υπερτερεί ως προς τουλάχιστον ένα. Μέσα από εκτενή πειράματα και θεωρητικές αναλύσεις, αντιπαραβάλλουμε και αξιολογούμε ποικίλες τεχνικές που αντιμετωπίζουν το παραπάνω πρόβλημα.
description: The purpose of this dissertation thesis is the application and evaluation of specific techniques for the computation of skyline queries in Databases (DBs), in the context of distributed / parallel systems. Even though the study is general, our interest focuses on constrained skyline queries. The (general type) skyline queries have attracted particular interest lately, given their usability in a plethora of applications, such as data mining, multi-criteria decision making etc. The result of a skyline query, when it is invoked on a DB with |D| tuples, each of which has |S| attributes, contains those tuples from the DB that are not dominated by any other tuple.Intuitively, a point s is dominated by another point s' if s is at least as good as s' in all of its attributes and is strictly betterthan s' in at least one attribute. Through extensive experimentation and theoretical analysis, we contrast and evaluate multiple techniques which address the above problem.
A morpho-semantic account of weak definites and bare institutional singulars in English
Creators: name: Williams, Adina
Publisher: name: Zenodo
Year: 2019

description: Weak definites in English have been widely studied as an example of when the
 definite article doesn’t contribute uniqueness (Aguilar-Guevara & Zwarts 2011;
 Aguilar-Guevara et al. 2014, among others). I take uniqueness to stem from the
 interaction between definiteness and number within the noun phrase. From this
 perspective, weak definites should be seen as a data point situated in the larger
 cross-literature on number. One particular phenomenon from the literature on
 number, the understudied class of the English bare institutional singulars (BISs),
 has been discovered to share several semantic properties with weak definiteness,
 namely number neutrality, referential deficiency, and lexical idiosyncrasy. In this
 chapter, I postulate a shared account of English weak definites and BISs that uti-
 lizes semantic root ambiguity (Rappaport Hovav & Levin 1998; Levinson 2014) as
 a way to account for these facts. This account has syntactic consequences that
 resonate with recent morphosyntactic accounts of number phenomena that argue
 NumP is the host of number interpretation and marking (Ritter 1991; 1992; 1995) in
 languages like Amharic, (Kramer 2009), Halkomelem Salish (Wiltschko 2008), and
 Haitian Creole (Déprez 2005).
Robust and Efficient Single-Pixel Image Classificationwith Nonlinear Optics
Creators: name: Kumar, Santosh
name: Bu, Ting
name: Zhang, He
name: Huang, Irwin
name: Huang, Yuping
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Image and Video Processing (eess.IV)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We present a hybrid image classifier by mode-selective image upconversion, single pixel photodetection, and deep learning, aiming at fast processing a large number of pixels. It utilizes partial Fourier transform to extract the signature features of images in both the original and Fourier domains, thereby significantly increasing the classification accuracy and robustness. Tested on the MNIST handwritten digit images, it boosts the accuracy from 81.25% to 99.23%, and achieves an 83% accuracy for highly contaminated images whose signal-to-noise ratio is only -17 dB. Our approach could prove useful for fast lidar data processing, high resolution image recognition, occluded target identification, atmosphere monitoring, and so on.
description: 5 pages, 5 figures
Does string theory predict an open universe?
Creators: name: Buniy, R.
name: Hsu, S.
name: Zee, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It has been claimed that the string landscape predicts an open universe, with negative curvature. The prediction is a consequence of a large number of metastable string vacua, and the properties of the Coleman--De Luccia instanton which describes vacuum tunneling. We examine the robustness of this claim, which is of particular importance since it seems to be one of string theory's few claims to falsifiability. We find that, due to subleading tunneling processes, the prediction is sensitive to unknown properties of the landscape. Under plausible assumptions, universes like ours are as likely to be closed as open.
description: 4 pages, 1 figure, revtex. Final version to appear in Physics Letters B
Το αρχαιολογικό κατάλοιπα στη νότιο ακτή του Ευξεινου Πόντου από την εκστρατεία του Μεγάλου Αλεξάνδρου ως τη ρωμαϊκή κατάκτηση. Οι αποικίες της Σινώπης, της Αμισού και της Αμάσειας:
Creators: name: Μεντεσίδου, Ελένη Τριαντάφυλλου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Εύξεινος Πόντος
Αποικίες
Σινώπη
Αμισός
Αμάσεια
Βασίλειο Πόντου
Black Sea
Colonies
Sinope
Amisos
Amaseia
Kindgom of Pontus

description: Στα πλαίσια της μεταπτυχιακής εργασίας μελετώνται τα αρχαιολογικά κατάλοιπα τριών ελληνικών αποικιών των νοτίων ακτών του Ευξείνου Πόντου, της Σινώπης της Αμισού και της Αμάσειας. Η έρευνα καλύπτει χρονικά την περίοδο από τα τέλη του 4ου αι.π.Χ. ως το 63 π.Χ., οπότε τοποθετείται η τελική επιβολή της ρωμαϊκής κατάκτησης στην περιοχή του Πόντου. Για μεγάλο διάστημα αυτής της περιόδου οι ελληνικές αποικίες αποτελούσαν τμήμα του ελληνιστικού βασιλείου του Πόντου, το οποίο ιδρύθηκε και κυβερνήθηκε από τη δυναστεία των Μιθριδατών.
description: The postgraduate essay examines the archaeological remains of three Greek colonies on the south coast of Black Sea, Sinope, Amisos and Amaseia. The research covers the period from the last decades of the 4th century B.C. until 63 B.C., when the final conquest of Pontus by the Roman Empire took place. During this specific period, the Greek colonies were for a long time part of the Hellenistic Kingdom of Pontus, which was founded and ruled by the dynasty of Mithridatics.
title: Fine-Tuning of Mass-Spring Model Properties for Simulating Realistic Soft Body Deformation
Creators: name: Girtelschmid, Sylva A.
Publisher: name: Old Dominion University Libraries
Year: 2005

description: Obtaining a well behaved soft-tissue model is one of the most challenging and important tasks in the development of surgical simulation systems. Achieving both accurate and real-time deformation response from a soft-tissue model becomes more difficult as the complexity of the represented anatomy and the degree of deformation increases. One common approach to modeling deformable objects is the Mass-Spring (MS) system method. Mass-Spring systems are attractive to real-time applications due to their relatively low computational requirement and ease of implementation. However, their parameter determination is typically done manually, which becomes tedious when accurate approximation to real-world objects is desired. This thesis will focus on making MS model tuning a less tedious procedure by developing a tool that allows its users to explore the effects on the deformation behavior by altering various parameters. Providing the geometry information of the soft object together with its mass and coefficient of stiffness, the users of this toolkit will be presented with a virtual deformable model. This model can be interacted with through a haptic device. A number of parameters, for which the program provides default values, can then be adjusted during a testing session. These include the spring stiffness constants, damping factor, percentage of deformation, and time-step for numerical integration. The users can test the behavior of the new setup any time a parameter is changed. After each test the average frame rate is displayed. When the model behavior and the frame rate achieved are satisfactory, the configuration can be saved into a text file and returned to for later comparison by retrieving/loading the settings from this file. The users of this tool will benefit by being able to minimize the time of MS model tuning, which is a necessary task when accuracy is critical.
LMC X-3 May Be a Relic of a GRB Similar to Cosmological GRBs
Creators: name: Brown, G. E.
name: Lee, C. -H.
name: Mendez, E. Moreno
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The present scenario for high-luminosity long gamma-ray bursts is strongly influenced by the paper of Fruchter et al. (2006). Whereas the main contention of this paper that these GRBs occur in low-metallicity irregular galaxies is based on a considerable collection of observational results and although the main thesis is doubtless correct, the paper does not explain the dynamics that produces such GRBs and much of the discussion not directly concerning the main thesis is wrong. We propose a dynamics and elucidate how the Fruchter et al. (2006) results may be tested, in our neighborhood in the LMC, suggesting that LMC X-3 is a relic of a high luminosity explosion, probably accompanied by a GRB and hypernova explosion. The way to test our suggestion is to measure the system velocity of the present black hole. We correct errors of the Fruchter et al. paper in stellar evolution, so that the study of GRBs is consistent with it. We show that the subluminous GRB 060218 had a low-mass black hole as central engine.
description: 7 pages, 3 figures
Discovering Avoidable Planner Failures of Autonomous Vehicles using Counterfactual Analysis in Behaviorally Diverse Simulation
Creators: name: Nishiyama, Daisuke
name: Castro, Mario Ynocente
name: Maruyama, Shirou
name: Shiroshita, Shinya
name: Hamzaoui, Karim
name: Ouyang, Yi
name: Rosman, Guy
name: DeCastro, Jonathan
name: Lee, Kuan-Hui
name: Gaidon, Adrien
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Automated Vehicles require exhaustive testing in simulation to detect as many safety-critical failures as possible before deployment on public roads. In this work, we focus on the core decision-making component of autonomous robots: their planning algorithm. We introduce a planner testing framework that leverages recent progress in simulating behaviorally diverse traffic participants. Using large scale search, we generate, detect, and characterize dynamic scenarios leading to collisions. In particular, we propose methods to distinguish between unavoidable and avoidable accidents, focusing especially on automatically finding planner-specific defects that must be corrected before deployment. Through experiments in complex multi-agent intersection scenarios, we show that our method can indeed find a wide range of critical planner failures.
description: 8 pages, 8 figures
Large twisting angles in Bilayer graphene Moire quantum dot structures
Creators: name: Bucko, Jozef
name: Herman, František
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Recent exploration of the commensurate structure in the turbostratic double layer graphene shows that the large angle twisting can be treated by the decrease of the effective velocity within the energy spectra of the single layer graphene. Within our work, we use this result as a starting point, aiming towards understanding the physics of by a large angle twisted double layer graphene (i.e. Moire) quantum dot systems. We show that within this simple approach using the language of the first quantization, yet another so far unrealized (not up to our knowledge), illustrative property of the commutation relation appears in the graphene physics. Intriguingly, large twisting angles show to be a suitable tunning knob of the position symmetry in the graphene systems. Complete overview of the large angle twisting on the considered dot systems is provided.
description: 10 pages, 7 figures
title: Parallel Implementations of the Frank-Wolfe Algorithms for the Traffic Assignment Problem
Creators: name: Allen, Shawn Eugene
Publisher: name: Old Dominion University Libraries
Year: 2013

description: Transportation planners seek to understand how to best invest limited resources for future transportation network development. The traffic assignment problem is one algorithm of great importance to planners because it provides insight into how traffic will flow within the network. The Frank-Wolfe algorithm is a traditional solution method for this optimization problem, but it has been characterized by its slow rate of convergence and poor computational performance. This thesis examines and implements several modern advancements in this algorithm which are designed to improve the rate of convergence.

In addition to algorithm changes, another method to improve the performance of an algorithm is to perform some or all of the calculations in parallel, thus reducing the wall clock time to obtain the result. Modern desktop computers commonly include multiple processors. To further improve the performance, the Message Passing Interface (MPI) parallelization technique is applied to the Frank-Wolfe algorithms in order to accelerate the most computationally-intensive parts of the algorithm. Numerical results on several real transportation networks are used to validate the developed parallel procedures.
On kinds and anaphoricity in languages without definite articles
Creators: name: Despić, Miloje
Publisher: name: Zenodo
Year: 2019

description: This paper investigates the availability of anaphoric readings with bare nouns in
 languages without definite articles, with a special focus on kind-level interpretation.
 Various facts from Serbian, Turkish, Japanese, Mandarin, and Hindi shows
 that the anaphoric reading of bare nouns is constrained by two general factors: (i)
 number morphology; in particular, whether the language in question has number
 morphology to begin with, and if it does, whether the bare noun in question is mass
 or count, and (ii) kind interpretation. It seems that mass and plural nouns can have
 anaphoric readings only if they are not interpreted as kinds. Singular count bare
 nouns, on the other hand, do not seem to be restricted in this way: they can have
 anaphoric readings regardless of whether or not they are interpreted as kinds. I argue
 that this state of affairs naturally follows from the system developed in Dayal
 (2004), which is based on a limited set of type-shifting operations and a particular
 analysis of number morphology. Alternative approaches to interpretation of bare
 nouns, on the other hand, do not seem to directly predict this sort of variation and
 require additional assumptions to account for it.
Χρήση νευρωνικών δικτύων για τη σχεδίαση μικροταινιακών γραμμών με δεδομένες S-παραμέτρους
Creators: name: Αποστολίδης, Χρήστος Μιλτιάδη
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Νευρωνικά δίκτυα
Μικροταινιακές γραμμές
Αλληλοπαρεμβολή
Neural networks
Microstrip transmission lines
Crosstalk

description: Τα τελευταία χρόνια τα τυπωμένα κυκλώματα γίνονται όλο και πιο πυκνά δομημένα και οι ταχύτητες μετάδοσης των δεδομένων όλο και υψηλότερες. Σε τέτοιες διατάξεις η αλληλοπαρεμβολή μεταξύ των μικροταινιακών γραμμών έχει ως αποτέλεσμα την παραμόρφωση του μεταδιδόμενου σήματος και περιορίζει την απόδοση των διασυνδέσεων. Επομένως η μείωση αυτής της αλληλοπαρεμβολής αποτελεί ένα σημαντικό παράγοντα στην σχεδίαση των τυπωμένων κυκλωμάτων. Σκοπός της παρούσας διπλωματικής εργασίας είναι η ελαχιστοποίηση της αλληλοπαρεμβολής μεταξύ δύο τυπωμένων μικροταινιακών γραμμών σε μια πολυστρωματική δομή. Αυτό επιχειρείται να επιτευχθεί προσδιορίζοντας τις φυσικές και γεωμετρικές παραμέτρους της διάταξης για δεδομένες τιμές της αλληλοπαρεμβολής με τη χρήση νευρωνικών δικτύων. Για την ανάπτυξη των νευρωνικών δικτύων επιλέχθηκε η αρχιτεκτονική ακτινικής συνάρτησης βάσης (RBF) με δύο κρυφά στρώματα καθώς και υβριδική διαδικασία εκπαίδευσης. Στην εκπαίδευση χωρίς επίβλεψη με την οποία έγινε η ομαδοποίηση των δεδομένων χρησιμοποιήθηκε ο αλγόριθμος K-means, ενώ στην εκπαίδευση με επίβλεψη χρησιμοποιήθηκε ο αλγόριθμος back-propagation. Τα δεδομένα με τα οποία πραγματοποιήθηκε η εκπαίδευση και ο έλεγχος των νευρωνικών δικτύων προέκυψαν από προσομοιώσεις. Από τα αποτελέσματα προκύπτει ότι προσδιορισμός των πέντε από τις έξι παραμέτρους της διάταξης γίνεται με ικανοποιητική ακρίβεια καθώς τα σχετικά σφάλματα δεν ξεπερνούν το 10%.
description: Recently, high data transmission rates and circuit density are the trends in the design of a digital printed circuit board. In such systems, crosstalk between coupled transmission lines causes the distortion of the signal and limits interconnect performance. Hence, the reduction of crosstalk becomes an important aspect of circuit design. In this work, the aim is to minimize crosstalk between two microstrip transmission lines on a multilayer PCB. It is attempted to determine the physical and geometrical parameters of the PCB, for given values of the near end and far end crosstalk, by the use of Artificial Neural Networks. The NN’s used, were based on a Radial Basis Function architecture with two hidden layers. The learning procedure was hybrid, consisting of an unsupervised and a supervised part. The K-means algorithm was used in the unsupervised part to group the training data, and the back-propagation algorithm was used in the supervised part of the learning procedure. The training and test data were obtained through simulation. The results are satisfactory for five out of six PCB parameters, as the relative errors do not exceed 10%.
Discovery of hybrid $γ$ Dor and $δ$ Sct pulsations in BD+18 4914 through MOST spacebased photometry
Creators: name: Rowe, J. F.
name: Matthews, J. M.
name: Cameron, C.
name: Bohlender, D. A.
name: King, H.
name: Kuschnig, R.
name: Guenther, D. B.
name: Moffat, A. F. J.
name: Rucinski, S. M.
name: Sasselov, D.
name: Walker, G. A. H.
name: Weiss, W. W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a total of 57 days of contiguous, high-cadence photometry (14 days in 2004 and 43 in 2005) of the star BD+18 4914 obtained with the MOST satellite. We detect 16 frequencies down to a signal-to-noise of 3.6 (amplitude \~ 0.5 mmag). Six of these are less than 3 cycles/day, and the other ten are between 7 and 16 cycles/day. We intrepret the low frequencies as g-mode $γ$ Doradus-type pulsations and the others as $δ$ Scuti-type p-modes, making BD+18 4914 one of the few known hybrid pulsators of its class. If the g-mode pulsations are high-overtone non-radial modes with identical low degree l, we can assign a unique mode classification of n={12, 20, 21, 22, 31, 38} based on the frequency ratio method.
description: 11 pages, 3 figure, to appear in Communications in Asteroseismology v. 148
Additional file 2 of The Japanese Critical Care Nutrition Guideline 2024
Creators: name: Nakamura, Kensuke
name: Yamamoto, Ryo
name: Higashibeppu, Naoki
name: Yoshida, Minoru
name: Tatsumi, Hiroomi
name: Shimizu, Yoshiyuki
name: Izumino, Hiroo
name: Oshima, Taku
name: Hatakeyama, Junji
name: Ouchi, Akira
name: Tsutsumi, Rie
name: Tsuboi, Norihiko
name: Yamamoto, Natsuhiro
name: Nozaki, Ayumu
name: Asami, Sadaharu
name: Takatani, Yudai
name: Yamada, Kohei
name: Matsuishi, Yujiro
name: Takauji, Shuhei
name: Tampo, Akihito
name: Terasaka, Yusuke
name: Sato, Takeaki
name: Okamoto, Saiko
name: Sakuramoto, Hideaki
name: Miyagi, Tomoka
name: Aki, Keisei
name: Ota, Hidehito
name: Watanabe, Taro
name: Nakanishi, Nobuto
name: Ohbe, Hiroyuki
name: Narita, Chihiro
name: Takeshita, Jun
name: Sagawa, Masano
name: Tsunemitsu, Takefumi
name: Matsushima, Shinya
name: Kobashi, Daisuke
name: Yanagita, Yorihide
name: Watanabe, Shinichi
name: Murata, Hiroyasu
name: Taguchi, Akihisa
name: Hiramoto, Takuya
name: Ichimaru, Satomi
name: Takeuchi, Muneyuki
name: Kotani, Joji
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2: CQ2 Evidence profiles.
Multi-scale energy budget of inertially driven turbulence in normal and superfluid helium
Creators: name: Sy, Fatimata
name: Diribarne, Pantxo
name: Rousset, Bernard
name: Gibert, Mathieu
name: Bourgoin, Mickael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 82D50, 76F05

description: In this paper we present a novel hydrodynamic experiment using liquid $^4$He. The flow is forced inertially by a canonical oscillating grid using either its normal (He~I) or superfluid (He~II) phase, generating a statistically stationary turbulence. We characterise the turbulent properties of the flow using 2D Lagrangian Particle tracking on hollow glass micro-spheres. As expected for tracer particles, the Voronoï tessellation on particle positions does not show a significant departure from a random Poisson process neither in He~I nor He~II phase. Particles' positions are tracked with high temporal resolution, allowing to resolve velocity fluctuations at integral and inertial scales while properly assessing the noise contribution. Additionally, we differentiate the particles' positions (by convolution with Gaussian kernels) in order to access small scale quantities like acceleration. Using these measured quantities and the formalism of classical Homogeneous Isotropic Turbulence (HIT) to perform an energy budget across scales we extract the energy injection rate at the large scale, the energy flux cascading through inertial scales, down to small scales at which it is dissipated. We found that in such inertially driven turbulence, regardless of the normal or superfluid state of the fluid, estimates of energy at the different scales are compatible with each other and consistent with oscillating grid turbulence results reported for normal fluids in the literature. The largest discrepancy shows up at small scales where the signal to noise ratio is harder to control and where the 2D measurement is contaminated by the 3D nature of the flow. This motivates to focus future experimental projects towards small scales, low noise and 3D measurements.
description: 20 pages, 15 figures, submitted to Peer journal
The $G_2$-MSSM - An $M$ Theory motivated model of Particle Physics
Creators: name: Acharya, Bobby S.
name: Bobkov, Konstantin
name: Kane, Gordon L.
name: Kumar, Piyush
name: Shao, Jing
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We continue our study of the low energy implications of $M$ theory vacua on $G_2$ manifolds, undertaken in \cite{Acharya:2007rc,Acharya:2006ia}, where it was shown that the moduli can be stabilized and a TeV scale generated, with the Planck scale as the only dimensionful input. A well-motivated phenomenological model - the $G_2$-MSSM, can be naturally defined within the above framework. In this paper, we study some of the important phenomenological features of the $G_2$-MSSM. In particular, the soft supersymmetry breaking parameters and the superpartner spectrum are computed. The $G_2$-MSSM generically gives rise to light gauginos and heavy scalars with wino LSPs when one tunes the cosmological constant. Electroweak symmetry breaking is present but fine-tuned. The $G_2$-MSSM is also naturally consistent with precision gauge coupling unification. The phenomenological consequences for cosmology and collider physics of the $G_2$-MSSM will be reported in more detail soon.
description: 42 pages, 7 figures, one figure corrected, reference added
Η γυναίκα στον Αριστοτέλη:
Creators: name: Τσαούση, Ουρανία Δαμιανού
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Γυναίκα
Αριστοτέλης
Οικογένεια
Νους
Λογική
Ηθική
Woman
Aristotle
Family
MInd
Logic
Ethics

description: Η θέση της γυναίκας κατά τον Αριστοτέλη δε φαίνεται να κατέχει σημαντικό ρόλο γι΄ αυτόν. Σε όλο σχεδόν το έργο του η γυναίκα κατέχει υποδεέστερη θέση σε σχέση με τον άντρα. Άνδρες και γυναίκες συνυπάρχουν προκειμένου να κάνουν παιδιά, να μοιράζονται τις ευθύνες μέσα στην οικία αλλά και λόγω αλληλοσεβασμού και συμπάθειας. Ο ρόλος της γυναίκας είναι κατώτερος και αποκλειστικά οικιακός. Οι γυναίκες περιγράφονται με βάση τις διαφορές τους από τους άνδρες, ενώ οι άνδρες δεν περιγράφονται καθόλου. Παρόλο που δεν τις εξομοιώνει με τους δούλους, εντούτοις τις καταλογίζει αδυναμία σκέψης και ελέγχου των συναισθημάτων τους. Η διαφορά ανάμεσα στους άντρες και τις γυναίκες προκύπτει από το γεγονός ότι οι αρετές της γυναίκας ασκούνται σε ρόλους κατώτερους. Αυτή η προβολή της κατωτερότητας του ρόλου πάνω στον ηθικό εξοπλισμό της γυναίκας δε φωτίζει, αλλά αντίθετα υποβιβάζει την αξία των αρετών της. Ακόμη, ο περιορισμός της γυναίκας στα του οίκου την αποκλείει απ΄ την πολιτική ζωή. Θεωρεί ακόμη πως η γυναίκα ενεργεί συναισθηματικά, αλλά όχι χωρίς εξυπνάδα.
description: Woman’s position according to Aristotle does not seem to play an important role. In his works woman is considered inferior to man. Men and women coexist in order to give birth to children, to share household duties but also in terms of respect and sympathy. Woman’s role is inferior and exclusively domestic. Women are described with respect to their differences to men, while men are in lack of description. He does not seem to equate them with the laborers; however he attributes weakness of the thinking capacity and control over their own emotions to them. The difference between men and women emerges from the fact that woman’s virtues are utilized in inferior roles. Such a depiction of the inferiority of her role upon her ethical equipment does not illuminate but on the contrary diminishes the value of her virtues. Furthermore, the restriction of women to domesticity excludes her from political life. He also claims that woman is acting emotionally, but not without cleverness.