cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The phase diagram of a frustrated Heisenberg model: from disorder to order and back again
Creators: name: Miranda, Michel M. J.
name: Almeida, Igor C.
name: Andrade, Eric C.
name: Hoyos, José A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the effects of bond and site disorder in the classical $J_{1}$-$J_{2}$ Heisenberg model on a square lattice in the order-by-disorder frustrated regime $2J_{2}>\left|J_{1}\right|$. Combining symmetry arguments, numerical energy minimization and large scale Monte Carlo simulations, we establish that the finite temperature Ising-like transition of the clean system is destroyed in the presence of any finite concentration of impurities. We explain this finding via a random-field mechanism which generically emerges in systems where disorder locally breaks the same real-space symmetry spontaneously globally broken by the associated order parameter. We also determine that the phase replacing the clean one is a paramagnet polarized in the nematic glass order with non-trivial magnetic response. This is because disorder also induces non-collinear spin-vortex-crystal order and produces a conjugated transverse dipolar random field. As a result of these many competing effects, the associated magnetic susceptibilities are non-monotonic functions of the temperature. As a further application of our methods, we show the generation of random axes in other frustrated magnets with broken SU(2) symmetry. We also discuss the generality of our findings and their relevance to experiments.
description: 17 pages, 14 figures. (v2) References and further discussions added; Final version as published
Elicitation of verbs
Creators: name: Parker, Verdena
name: Campbell, Amy
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio files VP-100607-02 through VP-100607-06: Elicitation of verbs (verbs of throwing, classificatory verbs, 'make', 'grow', and others)
Κοινωνιογλωσσική Ανάπτυξη και Πραγματολογική Παρεμβολή υπό το Πρίσμα της Μετάφρασης στη Εκμάθηση Ξένων Γλωσσών
Creators: name: Δεμηρτζίδου, Ιωάννα Μαρία Ηλία
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: κοινωνιογλωσσική ανάπτυξη
πραγματολογική παρεμβολή
ξενόγλωσση διδασκαλία
sociolinguistic development
pragmatic transfer
foreign language teaching

description: Η παρούσα θεωρητική διπλωματική εργασία θέτει ως στόχο να ερευνήσει το πλαίσιο στο οποίο η μετάφραση έχει χρησιμοποιηθεί ως εργαλείο διδασκαλίας στην εκμάθηση ξένων γλωσσών από παλαιότερα ως σήμερα έτσι, ώστε να παρουσιάσει και να αξιολογήσει τις συγκεκριμένες μεθοδολογίες που έχουν εφαρμοστεί, καθώς και να προτείνει νέους τρόπους χρήσης της μετάφρασης στη σύγχρονη εποχή. Η εργασία θα επικεντρωθεί στα οφέλη της χρήσης της μετάφρασης ως εργαλείο διδασκαλίας στο επίπεδο της κοινωνιογλωσσικής ανάπτυξης και το στοιχείο της πραγματολογικής ικανότητας που συχνά παραλείπονται κατά τη διδασκαλία μιας ξένης γλώσσας δίνοντας τη θέση τους στην εκμάθηση γραμματικών κανόνων και την απομνημόνευση λεξιλογίου, ενώ θα εξεταστούν συγκεκριμένοι παράγοντες που θα πρέπει να ληφθούν υπόψη ώστε να υποστηρίξουμε τη μετάφραση ως εργαλείο εκμάθησης ξένων γλωσσών μεθοδολογικά. Τέλος, η εργασία ευελπιστεί να προσδώσει καθολικότητα στην έρευνα και να αποδείξει ότι το συγκεκριμένο θέμα άπτεται όλων των γλωσσικών συνδυασμών
description: The aim of the present diploma thesis is to investigate the framework in which translation has been used as a teaching tool in foreign language education in the past and in the present with the purpose to present and assess the specific methodologies that have been applied as well as recommend new ways of translation use as an education tool in the modern world. The thesis will focus on the benefits of translation as a teaching tool at the level of sociolinguistic competence and pragmatic competence that are usually ignored in foreign language education giving their place to the memorization of grammar rules and vocabulary. Specific factors will be taken into consideration in our effort to prove that translation needs to be supported methodologically if it is to be used as an education tool. The present study hopes to prove that the specific topic refers to all language combinations
Επίδοση στην κατανόηση και αναπαραγωγή κειμένου αφηγηματικού λόγου μαθητών Ε΄ και ΣΤ΄ δημοτικού με μαθησιακές δυσκολίες
Creators: name: Αβραμίδου, Ηλιάνα Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Μαθησιακές δυσκολίες
Αφηγηματικός λόγος-Δημοτικό σχολείο
Learning disabilities
Narrative text-Primary school

description: Η παρούσα διπλωματική εργασία έχεις ως βασικό σκοπό να ερευνήσει την κατανόηση και η αναπαραγωγή ενός κειμένου με αφηγηματικό λόγο από παιδιά που αντιμετωπίζουν δυσκολίες στον λόγο. Συγκεκριμένα, θα διερευνηθούν οι δυσκολίες αναγνωστικής κατανόησης μέσω αναπαραγωγής ενός κειμένου που δόθηκε σε μαθητές Ε΄ και ΣΤ΄ δημοτικού οι οποίοι είχαν χαμηλή επίδοση στη λεκτική ικανότητα σε τεστ μαθησιακής επάρκειας
description: The main purpose of this work is to investigate the comprehension and reproduction of a narrative text by children with language disabilities. In particular, this study aims to investigate the difficulties of reading comprehension through reproduction of a text given to pupils in the last two classes of primary school who had low performance in verbal exercises in a learning competency test
การรับรู้ภาพลักษณ์ความรับผิดชอบต่อสังคมกับความภักดีในตราของธนาคารไทยพาณิชย์จำกัด (มหาชน)
Creators: name: พัฒนพงษ์ นาชัยลาน
Publisher: name: มหาวิทยาลัยราชภัฏสวนดุสิต
Year: 2557
Subjects: ภาพลักษณ์,ความรับผิดชอบต่อสังคม,ธนาคาร

description: 1, 10, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Closed-Form Decomposition of One-Loop Massive Amplitudes
Creators: name: Britto, Ruth
name: Feng, Bo
name: Mastrolia, Pierpaolo
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 present formulas for the coefficients of 2-, 3-, 4- and 5-point master integrals for one-loop massive amplitudes. The coefficients are derived from unitarity cuts in D dimensions. The input parameters can be read off from any unitarity-cut integrand, as assembled from tree-level expressions, after simple algebraic manipulations. The formulas presented here are suitable for analytical as well as numerical evaluation. Their validity is confirmed in two known cases of helicity amplitudes contributing to gg -> gg and gg -> gH, where the masses of the Higgs and the fermion circulating in the loop are kept as free parameters.
description: 37 pages
The evolving polarized jet of black hole candidate Swift J1745-26
Creators: name: Curran, P. A.; Coriat, Mickael; Miller-Jones, James C. A.; Armstrong, R. P.; Edwards, P. G.; Sivakoff, Gregory Robert; Woudt, Patrick Alan; Altamirano, Diego; Belloni, Thomaso. M.; Corbel, Stephane; Fender, Rob P.; Körding, Elmar. G.; Krimm, H. A.; Markoff, Sera; Migliari, Simone; Russell, D. M.; Stevens, J.; Tzioumis, T.
Publisher: name: University of Alberta Libraries
Year: 2014

Abstract
A pentaquark model for Lambda(1405)
Creators: name: Inoue, Takahi
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study a pentaquark model of the negative parity hyperon Lambda(1405). We choose a specific quark configuration for trial, and use the perturbative chiral quark model extended to four quarks and one anti-quark system. We calculate a sigma-term and a scalar form factor of the hyperon and demonstrate their usefulness to study the nature of the hyperon.
description: 4 pages, 2 figures, espcrc1, Proceedings of the 18th International IUPAP Conference on Few-Body Problems in Physics, FB18, held in Santos, Brazil, on August 21-16, 2006
Discussion of Sturgeon Slide and an anecdote about getting sprayed with a hose
Creators: name: Parker, Verdena
name: Campbell, Amy
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-100607-01: Discussion of a place called "Sturgeon Slide," followed by an anecdote about getting sprayed with a hose, told in English
คำศัพท์พื้นฐานภาษาอังกฤษสำหรับนักเรียนไทยชั้นประถมศึกษาปีที่ 1-3
Creators: name: พรพิศ งามพงษ์
Publisher: name: มหาวิทยาลัยราชภัฏสวนดุสิต
Year: 2557
Subjects: คำศัพท์พื้นฐาน,ภาษาอังกฤษ,นักเรียนชั้น ป.1-3

description: 1, 10, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Αναπτυξιακή Διαταραχή Συντονισμού σε παιδιά προσχολικής ηλικίας
Creators: name: Μαζγαλτζή, Βασιλική Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Αναπτυξιακή Διαταραχή Συντονισμού
Λεπτή και αδρή κινητικότητα, οπτικό-κινητικός συντονισμός
Frostig: Διαγνωστικό τεστ οπτικής αντίληψης
Developmental Coordination Disorder
Fine, gross & visual motor skills
Frostig: Developmental Test of Visual Perception

description: Η εργασία έχει σκοπό να ερευνήσει και να αναδείξει τις δυσκολίες κινητικού συντονισμού σε παιδιά προσχολικής ηλικίας. Η Αναπτυξιακή Διαταραχή Συντονισμού (ΑΔΣ) φαίνεται να είναι μια σύνθετη διαταραχή που επηρεάζει τους μαθητές σε αρκετά επίπεδα. Ωστόσο, είναι ένα ζήτημα που δεν έχει διερευνηθεί επαρκώς σε ελληνικά σχολεία. Στην έρευνα συμμετείχαν εβδομήντα τέσσερα (70) παιδιά προσχολικής ηλικίας και οι εκπαιδευτικοί τους. Αρχικά, οι εκπαιδευτικοί συμπλήρωσαν ένα ερωτηματολόγιο ανίχνευσης κινητικών δυσκολιών που περιλάμβανε ερωτήσεις για την λεπτή και αδρή κινητικότητα και για τον οπτικό αντιληπτικό συντονισμό. Έπειτα τα παιδιά κλήθηκαν να συμπληρώσουν το διαγνωστικό εργαλείο της Frostig. Οι εκπαιδευτικοί εντόπισαν αρκετά παιδιά με δυσκολίες κινητικού συντονισμού στις τάξεις τους, γεγονός που επιτρέπει το συμπέρασμα για επιβεβαίωση της υπόθεσης για την ύπαρξη παιδιών με ΑΔΣ. Παράλληλα, τα αποτελέσματα έδειξαν πως υπάρχει σχέση ανάμεσα στην κινητική ανάπτυξη (λεπτή κινητικότητα, αδρή κινητικότητα, οπτικό κινητικό συντονισμό) των παιδιών και στην οπτική αντίληψη (οπτικό κινητικός συντονισμός, διάκριση μορφής-πλαισίου, σχέσεις στο χώρο, τοποθέτηση στον χώρο, σταθερότητα μορφής) όπως αξιολογήθηκαν από το διαγνωστικό τεστ της Frostig
description: The goal of the present study was to present problems in motor coordination in preschool children’s. Developmental Coordination Disorder (DCD) seems to be a complex disorder that affects children in many levels. However, this subject has not be studied a lot in Greece and there are l lot to be learned yet. The sample for this study consisted of 70 preschool children and their teacher. Children's motor skills were assessed with the Checklist for motor coordination difficulties detection. Then, children accomplish the Developmental Test of Visual Perception - (Frostig, 1974). Teachers recognized many children with motor coordination difficulties in their classroom. This fact allows us to confirm the case of existing children’s with DCD. In addition, the results show us that there are a relationship between motor coordination test and visual perception test
Planar graphene-NbSe$_2$ Josephson junctions in a parallel magnetic field
Creators: name: Dvir, Tom
name: Zalic, Ayelet
name: Fyhn, Eirik Holm
name: Amundsen, Morten
name: Taniguchi, Takashi
name: Watanabe, Kenji
name: Linder, Jacob
name: Steinberg, Hadar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Thin transition metal dichalcogenides sustain superconductivity at large in-plane magnetic fields due to Ising spin-orbit protection, which locks their spins in an out-of-plane orientation. Here we use thin NbSe$_2$ as superconducting electrodes laterally coupled to graphene, making a planar, all van der Waals two-dimensional Josephson junction (2DJJ). We map out the behavior of these novel devices with respect to temperature, gate voltage, and both out-of-plane and in-plane magnetic fields. Notably, the 2DJJs sustain supercurrent up to $H_\parallel$ as high as 8.5 T, where the Zeeman energy $E_Z$ rivals the Thouless energy $E_{Th}$, a regime hitherto inaccessible in graphene. As the parallel magnetic field $H_\parallel$ increases, the 2DJJ's critical current is suppressed and in a few cases undergoes suppression and recovery. We explore the behavior in $H_\parallel$ by considering theoretically two effects: a 0-$π$ transition induced by tuning of the Zeeman energy and the unique effect of ripples in an atomically thin layer which create a small spatially varying perpendicular component of the field. The 2DJJs have potential utility as flexible probes for two-dimensional superconductivity in a variety of materials and introduce high $H_\parallel$ as a newly accessible experimental knob.
ภูมิปัญญาท้องถิ่นในการจัดทำฝายชะลอน้ำ กรณีตัวอย่าง ชุมชนบ้านกิ่วท่ากลาง-ท่าใต้ ต.บ้านกิ่ว อ.แม่ทะ จ.ลำปาง
Creators: name: ขวัญนภา สุขคร
Publisher: name: มหาวิทยาลัยราชภัฏสวนดุสิต
Year: 2557
Subjects: ภูมิปัญญาท้องถิ่น,ฝายชะลอน้ำ,การจัดการทรัพยากรธรรมชาติแบบมีส่วนร่วม

description: 1, 10, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
General formula for the four-quark condensate and vacuum factorization assumption
Creators: name: Zong, Hong-shi
name: He, Deng-ke
name: Hou, Feng-yao
name: Sun, Wei-Min
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: By differentiating the dressed quark propagator with respect to a variable background field, the linear response of the dressed quark propagator in the presence of the background field can be obtained. From this general method, using the vector background field as an illustration, we derive a general formula for the four-quark condensate $$. This formula contains the corresponding fully dressed vector vertex and it is shown that factorization for $$ holds only when the dressed vertex is taken to be the bare one. This property also holds for all other type of four-quark condensate.
description: Revtex4, 11 pages, no figures
Sandplay : a comparative study
Creators: name: Cockle, Susan M.
Publisher: name: University of British Columbia
Year: 2008

description: Differences in play themes, play characteristics, object use, and narratives, of coping and difficulty coping children were examined. Five subjects, from grades 2 and 3, were each assigned to the coping group (CG) and difficulty coping group (DCG). They participated individually in sandplay, on four separate occasions, over a two month period. The primary purpose of this study was to determine the differences in sandplay of the two groups, in order to determine the assessment and therapeutic value of this technique. Qualitative analysis indicated that the CG tend to view their world as more balanced, vital, and organized, where others guide them, and they are safe. They show resourcefulness in dealing with adversity and have hope for the future. The DCG tend to perceive their world as barren, a struggle, and consisting of threat and danger. They tend to lack resourcefulness in dealing with adversity and have a lack of hope for the future.
เลือกโรงเรียนอนุบาลที่ดีให้ลูกกันดีกว่า
Creators: name: สุทธิพรรณ ธีรพงศ์
Publisher: name: มหาวิทยาลัยราชภัฏสวนดุสิต
Year: 2557

description: 1, 10, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Διαγλωσσικές πρακτικές και όψεις ταυτότητας σε πληθυσμούς υπό μετακίνηση. Η περίπτωση των Σύριων προσφύγων της Λιβαδειάς
Creators: name: Φουρλή, Μαρία Αννα Λάζαρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: διαγλωσσικότητα
διαγλωσσικές πρακτικές
πρόσφυγες,
ταυτότητα
ισότητα
translanguaging
translingual practices
refugees
Identity
equality

description: Η συγκεκριμένη έρευνα μελετά ζητήματα γλώσσας και ταυτότητας στους Σύριους πρόσφυγες που ζουν στην Ελλάδα. Πιο συγκεκριμένα εστιάζει στις διαγλωσσικές πρακτικές των προσφύγων που καλούνται να επιβιώσουν σε ελληνικές πόλεις και σε πτυχές της ταυτότητας τους που κάθε φορά ξεδιπλώνονται ή διαμορφώνονται μέσα από τη γλωσσική χρήση. Οι συμμετέχοντες/ουσες στην έρευνα είναι Σύριοι/ες πρόσφυγες που κατοικούν στην πόλη της Λιβαδειάς. Επιλέχθηκε η σχέση γλώσσας – ταυτότητας να ειδωθεί μέσα από το πρίσμα της θεωρίας της διαγλωσσικότητας. Πρόκειται για μια προσέγγιση σχετικά νέα στο χώρο της κοινωνιογλωσσολογίας η οποία θέτει ως κεντρικό στόχο την κατασκευή νοήματος και την επίτευξη της επικοινωνίας , αξιοποιώντας όλο το γλωσσικό ρεπερτόριο του ατόμου (Otheguy, Garcia & Reid, 2015). Επιπλέον θέτει στο προσκήνιο ζητήματα ταυτότητας των ομιλητών/τριων. Γλώσσα – ταυτότητα – ιστορία του ατόμου συνιστούν ένα ψηφιδωτό που προχωρά και εξελίσσεται , όσο προχωρά και εξελίσσεται η ιστορία του ατόμου (Li Wei, 2011). Στη συγκεκριμένη έρευνα προέκυψε ως ανάγκη για επιβίωση η χρήση διαγλωσσικών πρακτικών και παρατηρήθηκε η σχέση ταυτότητας γλώσσας ως μια σχέση εξελισσόμενη στο χώρο και τον χρόνο
description: This study examines the language and identity issues among Syrian refugees living in Greece. More specifically, it focuses on the translingual practices of refugees who have to survive in Greek cities and on identity aspects that are always unfolded or shaped through the use of language. The research participants are Syrian refugees residing in the city of Livadia. The language - identity relationship was chosen to be viewed in the light of translanguaging theory. This is a relatively new approach in the field of sociolinguistics which sets the central goal of creating meanings and achieving communication effectiveness, using all the linguistic repertoire of the individual (Otheguy, Garcia & Reid, 2015) . It also raises the question about speakers’ identity. The language - identity - history of the individual is a mosaic that progresses and evolves as the history of the individual progresses and evolves(Li Wei, 2011) . In this study, the use of translingual practices has emerged as a need for survival, and the language - identity relationship was observed as a developing relationship
Pendellösung Interferometry Probes the Neutron Charge Radius, Lattice Dynamics, and Fifth Forces
Creators: name: Heacock, Benjamin
name: Fujiie, Takuhiro
name: Haun, Robert W.
name: Henins, Albert
name: Hirota, Katsuya
name: Hosobata, Takuya
name: Huber, Michael G.
name: Kitaguchi, Masaaki
name: Pushin, Dmitry A.
name: Shimizu, Hirohiko
name: Takeda, Masahiro
name: Valdillez, Robert
name: Yamagata, Yutaka
name: Young, Albert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Structure factors describe how incident radiation is scattered from materials such as silicon and germanium and characterize the physical interaction between the material and scattered particles. We use neutron pendellösung interferometry to make precision measurements of the (220) and (400) neutron-silicon structure factors, and achieve a factor of four improvement in the (111) structure factor uncertainty. These data provide measurements of the silicon Debye-Waller factor at room temperature and the mean square neutron charge radius $\langle r_n^2 \rangle = -0.1101 \pm 0.0089 \, \mathrm{fm}^2$. Combined with existing measurements of the Debye-Waller factor and charge radius, the measured structure factors also improve constraints on the strength of a Yukawa-modification to gravity by an order of magnitude over the 20 pm to 10 nm length scale range.
The world-sheet corrections to dyons in the Heterotic theory
Creators: name: Exirifard, Qasem
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: All the linear alpha-prime corrections, however excluding the gravitational Chern-Simons correction, are studied in the toroidally compactified critical Heterotic string theory. These corrections are computed to the entropy for a BPS static spherical four dimensional dyonic black hole which represents a wrapped fundamental string carrying arbitrary winding and momentum charges along one cycle in the presence of KK-monopole and H-monopole charges associated to another cycle. It is verified that after the inclusion of the gravitational Chern-Simons corrections [hep-th/0608182], all the linear alpha-prime corrections to the entropy for the supersymmetric dyon can be reproduced by the inclusion of only the Gauss-Bonnet Lagrangian to the supergravity approximation of the induced Lagrangian.
description: JHEP style, 17 Pages; v2: a typo corrected ; v3: The coupling of the gravitational Chern-Simons terms to the three form field strength taken into account. The conclusion corrected
Topologically Massive Gauge Theory: A Lorentzian Solution
Creators: name: Saygili, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We obtain a lorentzian solution for the topologically massive non-abelian gauge theory on AdS space by means of a SU(1, 1) gauge transformation of the previously found abelian solution. There exists a natural scale of length which is determined by the inverse topological mass. The topological mass is proportional to the square of the gauge coupling constant. In the topologically massive electrodynamics the field strength locally determines the gauge potential up to a closed 1-form via the (anti-)self-duality equation. We introduce a transformation of the gauge potential using the dual field strength which can be identified with an abelian gauge transformation. Then we present the map from the AdS space to the pseudo-sphere including the topological mass. This is the lorentzian analog of the Hopf map. This map yields a global decomposition of the AdS space as a trivial circle bundle over the upper portion of the pseudo-sphere which is the Hyperboloid model for the Lobachevski geometry. This leads to a reduction of the abelian field equation onto the pseudo-sphere using a global section of the solution on the AdS space. Then we discuss the integration of the field equation using the Archimedes map from the pseudo-sphere to the cylinder over the ideal Poincare circle. We also present a brief discussion of the holonomy of the gauge potential and the dual-field strength on the upper portion of the pseudo-sphere.
description: 23 pages, 1 postscript figure
Open cluster stability and the effects of binary stars
Creators: name: de Grijs, R.
name: Goodwin, S. P.
name: Kouwenhoven, M. B. N.
name: Kroupa, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The diagnostic age versus mass-to-light ratio diagram is often used in attempts to constrain the shape of the stellar initial mass function (IMF), and the potential longevity of extragalactic young to intermediate-age massive star clusters. Here, we explore its potential for Galactic open clusters. On the basis of a small, homogenised cluster sample we provide useful constraints on the presence of significant binary fractions. Using the massive young Galactic cluster Westerlund 1 as a key example, we caution that stochasticity in the IMF introduces significant additional uncertainties. We conclude that for an open cluster to survive for any significant length of time, and in the absence of substantial external perturbations, it is a necessary but not a sufficient condition to be located close to or (in the presence of a significant binary population) somewhat BELOW the predicted photometric evolutionary sequences for "normal" simple stellar populations (although such a location may be dominated by a remaining "bound" cluster core and thus not adequately reflect the overall cluster dynamics).
description: 9 pages, 3 figures, accepted for publication in A&A (replacement of v1 in which our results were based on a circular argument)
Acoustically propelled nano- and microcones: fast forward and backward motion
Creators: name: Voß, Johannes
name: Wittkowski, Raphael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We focus on cone-shaped nano- and microparticles, which have recently been found to show particularly strong propulsion when they are exposed to a traveling ultrasound wave, and study based on direct acoustofluidic computer simulations how their propulsion depends on the cones' aspect ratio. The simulations reveal that the propulsion velocity and even its sign are very sensitive to the aspect ratio, where short particles move forward whereas elongated particles move backward. Furthermore, we identify a cone shape that allows for a particularly large propulsion speed. Our results contribute to the understanding of the propulsion of ultrasound-propelled colloidal particles, suggest a method for separation and sorting of nano- and microcones concerning their aspect ratio, and provide useful guidance for future experiments and applications.
description: 10 pages, 3 figures
Delayed X- and Gamma-Ray Line Emission from Solar Flare Radioactivity
Creators: name: Tatischeff, V.
name: Kozlovsky, B.
name: Kiener, J.
name: Murphy, R. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have studied the radioactive line emission expected from solar active regions after large flares, following the production of long-lived radioisotopes by nuclear interactions of flare-accelerated ions. This delayed X- and gamma-ray line emission can provide unique information on the accelerated particle composition and energy spectrum, as well as on mixing processes in the solar atmosphere. Total cross sections for the formation of the main radioisotopes by proton, 3-He and alpha-particle reactions are evaluated from available data combined with nuclear reaction theory. Thick-target radioisotope yields are provided in tabular form, which can be used to predict fluxes of all of the major delayed lines at any time after a gamma-ray flare. The brightest delayed line for days after the flare is found to be the 511 keV positron-electron annihilation line resulting from the decay of several beta+ radioisotopes. After ~2 days however, the flux of the 511 keV line can become lower than that of the 846.8 keV line from the decay of 56-Co. Our study has revealed other delayed gamma-ray lines that appear to be promising for detection, e.g. at 1434 keV from the radioactivity of both the isomer and the ground state of 52-Mn, 1332 and 1792 keV from 60-Cu, and 931.1 keV from 55-Co. The strongest delayed X-ray line is found to be the Co Kalpha at 6.92 keV, which is produced from both the decay of the isomer of 58-Co by the conversion of a K-shell electron and the decay of 57-Ni by orbital electron capture. Prospects for observation of these lines with RHESSI or future space instruments are discussed.
description: Accepted for publication in ApJS. 29 pages, 12 figures
Polymer Translocation in Crowded Environments
Creators: name: Gopinathan, Ajay
name: Kim, Yong Woon
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the effect of the crowded nature of the cellular cytoplasm on the translocation of a polymer through a pore in a membrane. By systematically treating the entropic penalty due to crowding, we show that the translocation dynamics are significantly altered, leading to novel scaling behaviors of the translocation time in terms of chain length. We also observe new and qualitatively different translocation regimes depending upon the extent of crowding, transmembrane chemical potential asymmetry, and polymer length.
description: 4 figures
A Holistic Motion Planning and Control Solution to Challenge a Professional Racecar Driver
Creators: name: Srinivasan, Sirish
name: Giles, Sebastian Nicolas
name: Liniger, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We present a holistically designed three layer control architecture capable of outperforming a professional driver racing the same car. Our approach focuses on the co-design of the motion planning and control layers, extracting the full potential of the connected system. First, a high-level planner computes an optimal trajectory around the track, then in real-time a mid-level nonlinear model predictive controller follows this path using the high-level information as guidance. Finally a high frequency, low-level controller tracks the states predicted by the mid-level controller. Tracking the predicted behavior has two advantages: it reduces the mismatch between the model used in the upper layers and the real car, and allows for a torque vectoring command to be optimized by the higher level motion planners. The tailored design of the low-level controller proved to be crucial for bridging the gap between planning and control, unlocking unseen performance in autonomous racing. The proposed approach was verified on a full size racecar, considerably improving over the state-of-the-art results achieved on the same vehicle. Finally, we also show that the proposed co-design approach outperforms a professional racecar driver.
Re-elicitation of "The Me'dilding Poor Man"
Creators: name: Parker, Verdena
name: Campbell, Amy
name: Jackson, Silis
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio files VP-090607-02 through VP-090607-05: Re-elicitation of the text "The Me'dilding Poor Man," transcribed by Pliny Earle Goddard and published in the article "Athapascan (Hupa)" appearing in the Handbook of American Indian Languages, Part 1, edited by Franz Boas (1911). This appears to have been recorded in a group setting with additional people present beyond the researchers identified here, some of whom participate in the conversation.
Nonequilibrium thermodynamics of light-induced reactions
Creators: name: Penocchio, Emanuele
name: Rao, Riccardo
name: Esposito, Massimiliano
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Current formulations of nonequilibrium thermodynamics of open chemical reaction networks only consider chemostats as free-energy sources sustaining nonequilibrium behaviours. Here, we extend the theory to include incoherent light as a source of free energy. We do so by relying on a local equilibrium assumption to derive the chemical potential of photons relative to the system they interact with. This allows us to identify the thermodynamic potential and the thermodynamic forces driving light-reacting chemical systems out of equilibrium. We use this framework to treat two paradigmatic photochemical mechanisms describing light-induced unimolecular reactions -- namely the adiabatic and diabatic mechanisms -- and highlight the different thermodynamics they lead to. Furthermore, using a thermodynamic coarse-graining procedure, we express our findings in terms of commonly measured experimental quantities such as quantum yields.
description: 14 pages, 5 figures
Ab initio calculations of electric dipole moments of light nuclei
Creators: name: Froese, Paul
name: Navratil, Petr
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In any finite system, the presence of a non-zero permanent electric dipole moment (EDM) would indicate CP violation beyond the small violation predicted in the Standard Model. Here, we use the ab initio no-core shell model (NCSM) framework to theoretically investigate the magnitude of the nuclear EDM. We calculate EDMs of several light nuclei using chiral two- and three-body interactions and a PT-violating Hamiltonian based on a one-meson-exchange model. We present a benchmark calculation for $^3$He, as well as results for the more complex nuclei $^{6,7}$Li, $^9$Be, $^{10,11}$B, $^{13}$C, $^{14,15}$N, and $^{19}$F. Our results suggest that different nuclei can be used to probe different terms of the PT violating interaction. These calculations allow us to suggest which nuclei may be good candidates in the search for a measurable permanent electric dipole moment.
description: 6 pages, 3 figures, matches published version
The career decision making experience of five working class men
Creators: name: Lockington, Anne F.
Publisher: name: University of British Columbia
Year: 2008

description: Five working class men described the experience of decision-making related to their participation in paid employment. Each man was interviewed in depth. The interviews were audio taped and transcribed, from this data an account of the subject’s experiences were generated. Each account was validated by the subject as accurate and complete. The five accounts were then compared to theories of decision making to determine how theory would explain the men's experience. The three theories were; The Conflict Model by Janis and Mann, The Rational Model by Horan and The Deciding in Context Model by Sloan. The divergence between theory and experience, rather than the agreement was more informative. The comparison of the two rational models highlighted the importance of treating the decision moment as consequential: of focusing one's attention with deliberation and awareness. When the decision situation is not clearly defined and where meaning and significance must be drawn from the context of a life history these models are limited. Sloan's deciding in context model provided a more complex and complete understanding of the five decisions. Further study is needed to understand the decision making behavior of working class men as they participate in paid employment. The findings suggest that the context in which the decision is made is a significant factor. For the counsellor and working class client understanding the importance of the context of class may be one of the most critical factors in career decision making.
Roles of isoscalar hyperons in probing the density dependence of the nuclear symmetry energy
Creators: name: Jiang, W. Z.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The role of the isoscalar hyperon Lambda in probing the density dependence of the nuclear symmetry energy is studied in multi-Lambda hypernuclei, hyperon-rich matter and neutron stars in relativistic models. Relationships between the properties of three types of objects and the neutron thickness in 208Pb are established with respect to the isoscalar-isovector coupling that modifies the density dependence of the symmetry energy. The exotic isotopes far from the neutron drip line can be stabilized by filling in considerable Lambda hyperons. The difference of the binding energy of multi-Lambda hypernuclei from different models is attributed to different symmetry energies. The isovector potential together with the neutron thickness in multi-Lambda hypernuclei investigated is very sensitive to the isoscalar-isovector coupling. The large sensitivity of the Lambda hyperon fraction to the isoscalar-isovector coupling occurs at about 2-3 rho_0 in beta equilibrated hyperon-rich matter. In neutron stars with hyperonization, an on-off effect with respect to the isoscalar-isovector coupling exists for the neutron star radius.
description: 13 pages, 5 figures, To appear in Phys. Lett. B
Effective Attraction Interactions between Like-charge Macroions Bound to Binary Fluid Lipid Membranes
Creators: name: Shi, Xia-qing
name: Ma, Yu-qiang
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Using integral equation theory of liquids to a binary mixed fluid lipid membrane, we study the membrane-mediated interactions between the macroions and the redistribution of neutral and charged lipids due to binding macroions. We find that when the concentration of binding macroions is infinitely dilute, the main contribution to the attractive potential between macroions is the line tension between neutral and charged lipids of the membrane, and the bridging effect also contributes to the attraction. As the relative concentration of charged lipids is increased, we observe a repulsive - attractive - repulsive potential transition due to the competition between the line tension of lipids and screened electrostatic macroion-macroion interactions. For the finite concentration of macroions, the main feature of the attraction is similar to the infinite dilution case. However, due to the interplay of formation of charged lipid - macroion complexes, the line tension of redistributed binary lipids induced by single macroion is lowered in this case, and the maximum of attractive potential will shift toward the higher values of the charged lipid concentration.
Cross-plane thermal conductivity of GaN/AlN superlattices
Creators: name: Spindlberger, Anna
name: Kysylychyn, Dmytro
name: Thumfart, Lukas
name: Adhikari, Rajdeep
name: Rastelli, Armando
name: Bonanni, Alberta
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Heterostructures consisting of alternating GaN/AlN epitaxial layers represent the building-blocks of state-of-the-art devices employed for active cooling and energy-saving lightning. Insights into the heat conduction of these structures are essential in the perspective of improving the heat management for prospective applications. Here, the cross-plane (perpendicular to the sample's surface) thermal conductivity of GaN/AlN superlattices as a function of the layers' thickness is established by employing the $3ω$-method. Moreover, the role of interdiffusion at the interfaces on the phonon scattering is taken into account in the modelling and data treatment. It is found, that the cross-plane thermal conductivity of the epitaxial heterostructures can be driven to values as low as 5.9 W/(m$\cdot$K) comparable with those reported for amorphous films, thus opening wide perspectives for optimized heat management in III-nitride-based epitaxial multilayers.
Η επίδραση του ανοιχτού παιχνιδιού και των στατικών φάσεων στη δημιουργία επίτευξης τέρματος κατά τη διάρκεια αγώνων ποδοσφαίρου στο Παγκόσμιο Κύπελλο Ποδοσφαίρου 2018
Creators: name: Βεργώνης, Αλέξανδρος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Ανάλυση
Video Assistant Referee
Goal Line Technology
Match Analysis

description: Κύριος σκοπός της παρούσας έρευνας ήταν να μελετηθεί η επίδραση του ανοιχτού παιχνιδιού και των στατικών φάσεων στη δημιουργία επίτευξης τέρματος στους αγώνες του Παγκοσμίου Κυπέλλου Ποδοσφαίρου του 2018. Χ²-τεστ καλής προσαρμογής και ανάλυση διακύμανσης χρησιμοποιήθηκαν για την ανάλυση των δεδομένων και το επίπεδο σημαντικότητας ορίστηκε στο p<0,05. Τα αποτελέσματα της έρευνάς μας δείχνουν ότι το 41% των τερμάτων σημειώθηκαν από στατικές φάσεις, ενώ από ανοικτό παιχνίδι επιτεύχθηκε το 59% των τερμάτων, κυρίως μετά από μακρινά σουτ και σέντρες στην περιοχή τέρματος. Από το είδος της επίθεσης, φάνηκε ότι 59% των τερμάτων σημειώθηκε από οργανωμένη επίθεση και 30% των τερμάτων από αντεπίθεση. Τα περισσότερα τέρματα (64%) επιτεύχθηκαν από ανάκτηση της μπάλας στο επιθετικό τρίτο. Με την χρήση του VAR (13 γκολ) και του GLT (2 γκολ) σημειώθηκε το 9% τερμάτων, και επιπλέον όλα αυτά τα γκολ, εκτός από ένα, επηρέασαν το αποτέλεσμα του αγώνα, στο χρονικό σημείο που επιτεύχθηκαν. Συμπερασματικά διαπιστώθηκε από τα ευρήματα της έρευνας ότι οι προπονητές πρέπει να δώσουν έμφαση στην προπόνηση των στατικών φάσεων σε επιθετικές και αμυντικές καταστάσεις. Επιπλέον, διαφαίνεται έντονα η τάση εφαρμογής της πίεσης και του pressing στο επιθετικό τρίτο από τις αντίπαλες ομάδες, αλλά και διαπιστώνεται η ανάγκη ότι οι ομάδες θα πρέπει να ανταποκρίνονται σ’ αυτή τη φάση του παιχνιδιού
description: The aim of this study was to evaluate the effect of open play and set pieces on goal scoring in World Cup 2018. Chi-square and univariate general linear methods were used for the data analysis and the level of significance was set at p
DC-Assisted Stabilization of Internal Oscillations for Improved Symbol Transitions in a Direct Antenna Modulation Transmitter
Creators: name: Huang, Danyang
name: Schab, Kurt
name: Dusenbury, Joseph
name: Sluss, Brandon
name: Adams, Jacob
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Internal oscillations in switched antenna transmitters cause undesirable fluctuations of the stored energy in the system, reducing the effectiveness of time-varying broadbanding methods, such as energy-synchronous direct antenna modulation. To mitigate these parasitic oscillations, a modified direct antenna modulation system with an auxiliary DC source is introduced to stabilize energy storage on the antenna. A detailed circuit model for a direct antenna modulation system is used to identify the origin of the oscillations and to justify the selection of the DC source. Measured phase shift keyed waveforms transmitted by the modified system show significant increases in signal fidelity, including a 10-20 dB reduction in error vector magnitude compared to a time-invariant system. Comparison to an equivalent, scalable time-invariant antenna suggests that the switched transmitter behaves as though it has 2-3 times lower radiation Q-factor and 20% higher radiation efficiency.
Maximum Likelihood Estimation for Hawkes Processes with self-excitation or inhibition
Creators: name: Bonnet, Anna
name: Herrera, Miguel Martinez
name: Sangnier, Maxime
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistics Theory (math.ST)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In this paper, we present a maximum likelihood method for estimating the parameters of a univariate Hawkes process with self-excitation or inhibition. Our work generalizes techniques and results that were restricted to the self-exciting scenario. The proposed estimator is implemented for the classical exponential kernel and we show that, in the inhibition context, our procedure provides more accurate estimations than current alternative approaches.
Additional file 1 of Evaluation and revision of core postoperative nursing outcomes for laryngeal carcinoma in China
Creators: name: Ding, Yong-Xia
name: Yang, Hui
name: Sun, Ya-Xuan
name: Xu, Jinxia
name: Jing, Li
name: Ning, Yan
name: Wang, Bin-Quan
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: Additional file 1: Supplement 1. The related indicators in core nursing outcomes for patients after surgery
Data Analytics and Machine Learning Methods, Techniques and Tool for Model-Driven Engineering of Smart IoT Services
Creators: name: Moin, Armin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This doctoral dissertation proposes a novel approach to enhance the development of smart services for the Internet of Things (IoT) and smart Cyber-Physical Systems (CPS). The proposed approach offers abstraction and automation to the software engineering processes, as well as the Data Analytics (DA) and Machine Learning (ML) practices. This is realized in an integrated and seamless manner. We implement and validate the proposed approach by extending an open source modeling tool, called ThingML. ThingML is a domain-specific language and modeling tool with code generation for the IoT/CPS domain. Neither ThingML nor any other IoT/CPS modeling tool supports DA/ML at the modeling level. Therefore, as the primary contribution of the doctoral dissertation, we add the necessary syntax and semantics concerning DA/ML methods and techniques to the modeling language of ThingML. Moreover, we support the APIs of several ML libraries and frameworks for the automated generation of the source code of the target software in Python and Java. Our approach enables platform-independent, as well as platform-specific models. Further, we assist in carrying out semiautomated DA/ML tasks by offering Automated ML (AutoML), in the background (in expert mode), and through model-checking constraints and hints at design-time. Finally, we consider three use case scenarios from the domains of network security, smart energy systems and energy exchange markets.
description: ICSE Doctoral Symposium Paper