cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Interferometric Mapping of Magnetic fields: NGC2071IR
Creators: name: Cortes, P. C.
name: Crutcher, R. M.
name: Matthews, B. C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present polarization maps of NGC2071IR from thermal dust emission at 1.3 mm and from CO J=$2 \to 1$ line emission. The observations were obtained using the Berkeley-Illinois-Maryland Association array in the period 2002-2004. We detected dust and line polarized emission from NGC2071IR that we used to constrain the morphology of the magnetic field. From CO J=$2 \to 1$ polarized emission we found evidence for a magnetic field in the powerful bipolar outflow present in this region. We calculated a visual extinction $A_{\rm{v}} \approx 26$ mag from our dust observations. This result, when compared with early single dish work, seems to show that dust grains emit polarized radiation efficiently at higher densities than previously thought. Mechanical alignment by the outflow is proposed to explain the polarization pattern observed in NGC2071IR, which is consistent with the observed flattening in this source.
description: 17 pages, 4 Figures, Accepted for publication in ApJ
Aharonov-Bohm Effect in Concentric Quantum Double Rings
Creators: name: Chen, G. Y.
name: Chen, Y. N.
name: Chuu, D. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a theoretical model to study the single-electron spectra of the concentric quantum double ring fabricated lately by self-assembled technique. Exact diagonalization method is employed to examine the Aharonov-Bohm effect in the concentric double ring. It is found the appearance of the AB oscillation in total energy depends on the strength of the screened potential. Variations of the energy spectra with the presence of coulomb impurities located at inner or outer ring are also investigated.
description: 4 pages, 5 figures
ต้นแบบการจัดกิจกรรมฝึกวิชาชีพเพื่อสร้างรายได้สำหรับผู้สูงอายุในภาคตะวันออกเฉียงเหนือของประเทศไทย
Creators: name: นิตยา ทวีชีพ
name: พิทักษ์ จันทร์เจริญ
name: ประภาภรณ์ มูลแสดง
name: วัชรินทร์ จัตุชัย
name: จิรัชญา คงชาติไทย
Publisher: name: มหาวิทยาลัยราชภัฏสวนดุสิต
Year: 2556
Subjects: ต้นแบบการจัดกิจกรรมฝึกวิชาชีพ,การสร้างรายได้,ผู้สูงอายุ

description: 3, 9, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Semantic elicitation: Modality
Creators: name: Yegon, Kiplangat
name: Bossi, Madeline
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: sgc

description: One .mp4 file and one .pdf file. Elicitation about force flexibility of rɑisi under negation. Elicitation of various different modal contexts.
ทรรศนะของครูผู้สอนที่มีต่อการจัดการเรียนร่วมในโรงเรียนสาธิตละอออุทิศ มหาวิทยาลัยราชภัฏสวนดุสิต
Creators: name: นารีนารถ บุญสา
name: สุวิมล อุดมพิริยะศักย์
Publisher: name: มหาวิทยาลัยราชภัฏสวนดุสิต
Year: 2556
Subjects: ทรรศนะ,การจัดการเรียนร่วม,โรงเรียนสาธิตละอออุทิศ,มหาวิทยาลัยราชภัฏสวนดุสิต

description: 3, 9, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Interacting Antiferromagnetic Droplets in Quantum Critical CeCoIn_5
Creators: name: Urbano, R. R.
name: Young, B. -L.
name: Curro, N. J.
name: Thompson, J. D.
name: Pham, L. D.
name: Fisk, Z.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The heavy fermion superconductor CeCoIn_5 can be tuned between superconducting and antiferromagnetic ground states by hole doping with Cd. Nuclear magnetic resonance (NMR) data indicate that these two orders coexist microscopically with an ordered moment ~0.7 μ_B. As the ground state evolves, there is no change in the low frequency spin dynamics in the disordered state. These results suggest that the magnetism emerges locally in the vicinity of the Cd dopants.
description: 4 pages, 4 figures
Evaluation of camphor derivatives in terpenoid synthesis
Creators: name: Palme, Monica H.
Publisher: name: University of British Columbia
Year: 2008

description: New enantiospecific syntheses of 5,6-dehydrocamphor (36) and 5-methy1-5,6-dehydrocamphor (178) are reported, and these two compounds were evaluated as intermediates in terpenoid synthesis. Addition of an alkenyl unit to (+)-5,6-dehydro-camphor (36) and subsequent anionic oxy-Cope rearrangement of the resulting 1,5-diene (64) provided hydrindenone 66. Ring expansion of 66 provided decalin intermediate 69 which contains the A/B ring system common to many terpenoids; however, the stereo-specific introduction of an angular methyl group to provide a system such as 40 eludedus. Therefore, a similar synthetic strategy using (+5-methyl-5,6-dehydrocamphor (178)was investigated. Isopropenyl addition to 178 and subsequent anionic oxy-Copere arrangement provided hydrindenone 190 which contained the desired angular methyl group. (-)-5-Methyl-5,6-dehydrocamphor (178) was also converted to enone 204, but stereoselective conjugate addition to this enone (204) was not satisfactory. Addition of amore complex alkenyl unit to (-)-5-methyl-5,6-dehydrocamphor (178) provided 1,5-diene179, however, anionic oxy-Cope rearrangement to provide hydrindenone 180 did not occur, presumably due to steric effects. The first enantio selective synthesis of (-)-4-methylcamphor (229) is also reported. It is expected that 229 will undergo reactions analogous to those reported for camphor(25) and therefore would provide a route to trans hydrindenone 232. The latter compound is a potentially useful intermediate in the synthesis of the lanostane group of triterpenoids whereas its enantiomer (ent-232) derived from (+)-4-methylcamphor (ent-178) could gain access to the euphane group of triterpenoids.
Beyond the Dynamic Density Functional theory for steady currents. Application to driven colloidal particles in a channel
Creators: name: Tarazona, Pedro
name: Marconi, Umberto Marini Bettolo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Motivated by recent studies on the dynamics of colloidal solutions in narrow channels, we consider the steady state properties of an assembly of non interacting particles subject to the action of a traveling potential moving at a constant speed while the solvent is modeled by a heat bath at rest in the laboratory frame. Since the description, we propose here, takes into account the inertia of the colloidal particles it is necessary to consider the evolution of both positions and momenta and study the governing equation for the one-particle phase-space distribution. We first derive the asymptotic form of its solutions as an expansion in Hermite polynomials and their generic properties, such as the force and energy balance and then we particularize our study to the case of an inverted parabolic potential barrier. We obtain numerically the steady state density and temperature profile and show that the expansion is rapidly convergent for large values of the friction constant and small drifting velocities. The present results on the one hand confirm the previous studies based on the dynamic density functional theory (DDFT) when the friction constant is large, on the other hand display effects such as the presence of a wake behind the barrier and a strong inhomogeneity in the temperature field which are beyond the DDFT description.
description: 21 pages, 7 figures To appear in Journal of Chemical Physics
Η επιρροή των διακρατικών ενώσεων στην τέχνη και τον πολιτισμό με βασικό παράδειγμα την περίπτωση της Ευρωπαϊκής Ένωσης
Creators: name: Κυριάκου, Νεφέλη-Μαρία Χαραλάμπους
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Ευρωπαϊκή ένωση και τέχνη
Διακρατική ένωση και τέχνη
European Union and art
Transnational union and art

description: Η Ευρωπαϊκή ένωση και το οικονομικό-πολιτικό και κοινωνικό περιβάλλον που έχει διαμορφωθεί μέσα στα πλαίσια της διακρατικής αυτής ένωσης έχει ισχυρό αντίκτυπο στην τέχνη και τον πολιτισμό. Αρχικά από την αρχή της ίδρυσης της προσπαθεί να καλλιεργήσει ανάμεσα στα κράτη-μέλη της το αίσθημα της κοινής ιστορίας, κοινής ταυτότητας (ευρωπαϊκής), κοινής συνείδησης και μνήμης. Αυτό έχει αντίκτυπο στην τέχνη κυρίως σε επίπεδο περιεχομένου όχι τόσο σε επίπεδο μορφής. Επίσης οι συνθήκες διαβίωσης των καλλιτεχνών σε επίπεδο Ελλάδας και Ευρώπης δείχνουν ότι το σύνολο των καλλιτεχνών δεν έχει πρόσβαση στην ελεύθερη δημιουργία καθώς βιοπορίζεται με τρόπους που δεν αφορούν την καλλιτεχνική παραγωγή με αποτέλεσμα το καλλιτεχνικό έργο να έρχεται σε δεύτερη μοίρα
description: This essay is about how art is being formed inside a new (economically based) environment such as European Union. European Union has set a lot of goals that have to do with art. Two basic categories have been formed during this process. The first is that European Union tries to shape the ideological environment between the states that constitute the union. The union is trying to create a similar way of thinking about historic events and tries to make the members to think they have common history, culture and identity (European culture). The second category is that art and culture are more connected to the economy and the competitive economic field around the world. That has an important impact on art mainly to the content of the artworks that are being created today. In the end the way artists struggle with everyday life problems shows that contemporary art is either being made in regular basis from artists that have big income or is being placed in a moderate situation
Lattice formulation of (2,2) supersymmetric gauge theories with matter fields
Creators: name: Endres, Michael G.
name: Kaplan, David B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We construct lattice actions for a variety of (2,2) supersymmetric gauge theories in two dimensions with matter fields interacting via a superpotential.
description: 13 pages, 2 figures. Appendix added, references updated, typos fixed
Basket Weaving and Woven-Fiber Technology in the Pre-Pottery Neolithic (PPN)
Creators: name: Doble, Rick
Publisher: name: figshare
Year: 2022
Subjects: subject: 160199 Anthropology not elsewhere classified
subject: FOS: Sociology
subject: 160101 Anthropology of Development
subject: 169999 Studies in Human Society not elsewhere classified
subject: 210102 Archaeological Science
subject: FOS: History and archaeology
subject: 210199 Archaeology not elsewhere classified
subject: 210103 Archaeology of Asia, Africa and the Americas
subject: 210105 Archaeology of Europe, the Mediterranean and the Levant
subject: 219999 History and Archaeology not elsewhere classified
subject: 210310 Middle Eastern and African History

description: It is clear from the fact that pottery had not been invented until late in the Neolithic era, that other tools and implements must have been fabricated during the Pre-Pottery Neolithic (PPN). Serge Svizzero points out in his quoted article that agriculture would have required a necessary set of support tools and containers to be successful; it is not enough to say that the Neolithic way of life occurred because of agriculture and the domestication of animals. In this article, I present direct and indirect evidence of Neolithic basketry to show that many of these implements could have been made using woven-fiber technology or basket weaving skills, a technology that may have been passed down from Upper Paleolithic societies. And I suggest these skills continued to be employed all during the Neolithic time period. Furthermore, I suggest these skills were passed on to the emerging civilizations in Mesopotamia and Egypt who made full use of this technology when needed.
การพัฒนาเหตุผลเชิงจริยธรรมโดยวิธีการเรียนรู้แบบร่วมมือด้วยเทคนิคกลุ่มสืบสอบและใช้โครงงานคุณธรรมเป็นฐาน
Creators: name: ฐิติยา เนตรวงษ์
Publisher: name: มหาวิทยาลัยราชภัฏสวนดุสิต
Year: 2556
Subjects: เหตุผลเชิงจริยธรรม,การเรียนรู้แบบร่วมมือด้วยเทคนิคกลุ่มสืบสอบ,โครงงานคุณธรรมเป็นฐาน

description: 3, 9, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Time-fractional kinetic equation for the non-Markovian kinetic processes
Creators: name: Aydiner, E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this study, we analytically formulated the path integral representation of the conditional probabilities for non-Markovian kinetic processes in terms of the free energy of the thermodynamic system. We carry out analytically the time-fractional kinetic equations for these processes. Thus, in a simple way, we generalize path integral solutions of the Markovian to the non-Markovian cases. We conclude that these pedagogical results can be applied to some physical problems such as the deformed ion channels, internet networks and non-equilibrium phase transition problems.
description: No figure
Baryons and Large N_c in Happy Resonance
Creators: name: Lebed, Richard F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I discuss recent developments in the large N_c treatment of unstable baryon resonances and the scattering amplitudes in which they appear. These include pion photoproduction, extension to three-flavor processes, decoupling of large N_c artifacts, and combination of this approach with results of chiral symmetry.
description: 7 pages, LaTeX, style files included. Invited talk at 7th Workshop on Continuous Advances in QCD, Minneapolis, Minnesota 11-14 May 2006
การศึกษาการใช้หลักสูตรสาระสังคมศึกษา ศาสนาและวัฒนธรรม สาระที่ 1 ศาสนา ศีลธรรม จริยธรรม (อิสลามศึกษา) ของโรงเรียนสังกัดเทศบาล เขตการศึกษา 2
Creators: name: สุคนธ์ ไกรพรม
name: ผดุง พรมมูล
Publisher: name: มหาวิทยาลัยราชภัฏสวนดุสิต
Year: 2556
Subjects: การศึกษา,หลักสูตรสาระสังคมศึกษา ศาสนาและวัฒนธรรมสาระที่ 1 ศาสนา ศีลธรรม จริยธรรม (อิสลามศึกษา),โรงเรียนสังกัดเทศบาล เขตการศึกษา 2,วิทยากรสอนศาสนาอิสลาม

description: 3, 9, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
title: Analysis of reduction methods a degradation photovoltaic panel converters solar electric stationsin Changzhou (China) and Moscow (RE)
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: ÐÐ½Ð°Ð»Ð¸Ð· Ð¼ÐµÑÐ¾Ð´Ð¾Ð² ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ñ Ð´ÐµÐ³ÑÐ°Ð´Ð°ÑÐ¸Ð¸ ÑÐ¾ÑÐ¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÐµÐ¹ Ð¿Ð°Ð½ÐµÐ»ÐµÐ¹ ÑÐ¾Ð»Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÑÐ°Ð½ÑÐ¸Ð¹ Ð² Ð§Ð°Ð½ÑÑÐ¶Ð¾Ñ (ÐÐ¸ÑÐ°Ð¹) Ð¸ ÐÐ¾ÑÐºÐ²Ð° (PÐ¤)
Creators: name: ÐÐ°Ð½ ÐÑÐ½ÑÑÐ°Ð¾
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: ÐÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»Ð¸ ÑÐ¾ÑÐ¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ
Ð¡Ð¾Ð»Ð½ÐµÑÐ½Ð°Ñ ÑÐ½ÐµÑÐ³Ð¸Ñ
Ð¡Ð¾Ð»Ð½ÐµÑÐ½ÑÐµ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÑÐ°Ð½ÑÐ¸Ð¸
ÑÐ¾ÑÐ¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð°Ð½ÐµÐ»Ð¸
Ð´ÐµÐ³ÑÐ°Ð´Ð°ÑÐ¸Ñ
ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ðµ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸
photoelectric panels
degradation
power reduction

description: ÐÑÐ¸ÑÐ¸Ð½Ñ Ð´ÐµÐ³ÑÐ°Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð°Ð½ÐµÐ»ÐµÐ¹ ÑÐ¾ÑÐ¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÐµÐ¹: Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÑÑÑÑÑ, Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÑÑÑÑÑ Ð¼ÐµÑÐ¾Ð´Ñ ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ñ ÑÐºÐ¾ÑÐ¾ÑÑÐ¸ Ð´ÐµÐ³ÑÐ°Ð´Ð°ÑÐ¸Ð¸ Ð¸ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÑÑÑÑÑ Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÑÑÑÑÑ Ð¿ÑÐµÐ¸Ð¼ÑÑÐµÑÑÐ²Ð° Ð¸ Ð½ÐµÐ´Ð¾ÑÑÐ°ÑÐºÐ¸. ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð»Ð¸, ÑÑÐ¾ Ð´ÐµÐ³ÑÐ°Ð´Ð°ÑÐ¸Ñ ÑÐ¾ÑÐ¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¿Ð°Ð½ÐµÐ»ÐµÐ¹ Ð±Ð¾Ð»ÑÑÐµ ÑÐ²ÑÐ·Ð°Ð½Ð¾ Ñ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð¾Ð¼ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð², Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð¾Ð¼ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð², ÐºÐ»Ð¸Ð¼Ð°Ñ Ð¼ÐµÑÑÐ°, Ð³Ð´Ðµ Ð¾Ð½Ð¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÑÑÑÑ, Ð¿Ð¾Ð³Ð¾Ð´Ð½ÑÐµ ÑÑÐ»Ð¾Ð²Ð¸Ñ, ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ° Ð¸ Ð²Ð»Ð°Ð¶Ð½Ð¾ÑÑÑ.
description: The reasons for the degradation of panels of photovoltaic converters are analyzed, methods for reducing the rate of degradation are determined, and the advantages and disadvantages are analyzed. Research has shown that the degradation of photovoltaic panels is more related to manufacturing materials, manufacturing processes, the climate of the place where they are used, weather conditions, temperature and humidity.
ความเป็นองค์กรแห่งการเรียนรู้ของโรงเรียนมาตรฐานสากล เขตพื้นที่การศึกษามัธยมศึกษากรุงเทพมหานคร
Creators: name: อารีย์รัตน์ อภัยรัตน์
Publisher: name: มหาวิทยาลัยราชภัฏสวนดุสิต
Year: 2556
Subjects: องค์กรแห่งการเรียนรู้,โรงเรียนมาตรฐานสากลเขตพื้นที่การศึกษามัธยมศึกษา

description: 3, 9, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Interferometric mapping of Magnetic fields: G30.79 FIR 10
Creators: name: Cortes, P. C.
name: Crutcher, R. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present polarization maps of G30.79 FIR 10 (in W43) from thermal dust emission at 1.3 mm and from CO J=$2 \to 1$ line emission. The observations were obtained using the Berkeley-Illinois-Maryland Association array in the period 2002-2004. The G30.79 FIR 10 region shows an ordered polarization pattern in dust emission, which suggests an hourglass shape for the magnetic field. Only marginal detections for line polarization were made from this region. Application of the Chandrashkar-Fermi method yielded $B_{pos} \approx 1.7$ mG and a statistically corrected mass to magnetic flux ratio $λ_{C} \approx 0.9$, or essentially critical.
description: 11 pages, 2 Figures, Published in ApJ
title: Bouvardia :
title: Principes directeurs pour la conduite de l’examen de la distinction, de l’homogénéité et de la stabilité.
titleType: Subtitle
Creators: name: International Union For The Protection Of New Varieties Of Plants,
Publisher: name: International Union for the Protection of New Varieties of Plants,
Year: 0
Subjects: Group identity.
New Varieties of Plants
Bouvardia

description: Ces principes directeurs (“principes directeurs d’examen”) visent à approfondir les principes énoncés dans l’introduction générale (document TG/1/3) et dans les documents TGP qui s’y rapportent afin de donner des indications concrètes détaillées pour l’harmonisation de l’examen de la distinction, de l’homogénéité et de la stabilité (DHS) et, en particulier, à identifier des caractères convenant à l’examen DHS et à la production de descriptions variétales harmonisées.
Electron density diagnostic for hot plasmas in coronal regime by using B-like ions
Creators: name: Liang, Guiyun
name: Zhao, Gang
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Line ratio of $3d-2p$ transition lines in boron-like spectra of Si X, S XII, Ar XIV and Fe XXII has been investigated. Collisional-radiative model calculations reveal that the line ratio is sensitive to the electron density in ranges of $n_{\rm e}=4.0\times10^7-3.0\times10^{10}$ cm$^{-3}$, $4.0\times10^8-3.0\times10^{11}$ cm$^{-3}$, $3.0\times10^9-4.0\times10^{12}$ cm$^{-3}$ and $2.0\times10^{12}-3.0\times10^{15}$ cm$^{-3}$, respectively. This complements the K-shell diagnostics of helium-like ions. By comparison between the prediction and the measured values, effective electron densities in the electron beam ion trap (EBIT) plasmas performed by Lepson and collaborators at Lawrence Livermore EBIT, are estimated to be $n_{\rm e}=3.4^{+0.8}_{-0.6}\times10^{10}$ cm$^{-3}$ and $5.6^{+1.0}_{-1.1}\times10^{10}$ cm$^{-3}$ for sulphur and argon plasmas. In case of argon, a good agreement is shown with the actual electron density derived from N VI K-shell spectrum. We further explore the $3d-2p$ transition lines of Si X and S XII in the stellar coronal spectra measured with the Low Energy Transmission Grating Spectrometer combined with High Resolution Camera on board the {\it Chandra X-ray Observatory}. The constrained electron densities show a good agreement with the those determined from C V and O VII K-shell spectra.
description: 15 pagess, 5 figures and 4 tables, accepted for publication on AJ
Multi-view analysis of unregistered medical images using cross-view transformers
Creators: name: van Tulder, Gijs
name: Tong, Yao
name: Marchiori, Elena
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Multi-view medical image analysis often depends on the combination of information from multiple views. However, differences in perspective or other forms of misalignment can make it difficult to combine views effectively, as registration is not always possible. Without registration, views can only be combined at a global feature level, by joining feature vectors after global pooling. We present a novel cross-view transformer method to transfer information between unregistered views at the level of spatial feature maps. We demonstrate this method on multi-view mammography and chest X-ray datasets. On both datasets, we find that a cross-view transformer that links spatial feature maps can outperform a baseline model that joins feature vectors after global pooling.
description: Conference paper presented at MICCAI 2021. Code available via https://vantulder.net/code/2021/miccai-transformers/
การบริหารจัดการศิลปินในธุรกิจดนตรี โดยกลยุทธ์การจัดการทรัพยากรมนุษย์
Creators: name: ศักดิ์สิทธิ์ ราชรักษ์
name: สุรพิชญ์ พรหมสิทธิ์
Publisher: name: มหาวิทยาลัยราชภัฏสวนดุสิต
Year: 2556
Subjects: การบริหารจัดการทรัพยากรมนุษย์ การบริหารจัดการศิลปิน ธุรกิจดนตรี การบริหารจัดการพนักงานดาวเด่น

description: 3, 9, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Quantum Mechanical Search and Harmonic Perturbation
Creators: name: Jiang, Jie-Hong R.
name: Chiou, Dah-Wei
name: Wu, Cheng-En
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Perturbation theory in quantum mechanics studies how quantum systems interact with their environmental perturbations. Harmonic perturbation is a rare special case of time-dependent perturbations in which exact analysis exists. Some important technology advances, such as masers, lasers, nuclear magnetic resonance, etc., originated from it. Here we add quantum computation to this list with a theoretical demonstration. Based on harmonic perturbation, a quantum mechanical algorithm is devised to search the ground state of a given Hamiltonian. The intrinsic complexity of the algorithm is continuous and parametric in both time T and energy E. More precisely, the probability of locating a search target of a Hamiltonian in N-dimensional vector space is shown to be 1/(1+ c N E^{-2} T^{-2}) for some constant c. This result is optimal. As harmonic perturbation provides a different computation mechanism, the algorithm may suggest new directions in realizing quantum computers.
description: 6 pages, 4 figures, revtex4
Spectral Polarization and Spectral Phase Control of Time and Energy Entangled Photons
Creators: name: Dayan, Barak
name: Bromberg, Yaron
name: Afek, Itai
name: Silberberg, Yaron
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate a scheme to spectrally manipulate a collinear, continuous stream of time and energy entangled photons to generate beamlike, bandwidth-limited fuxes of polarization-entangled photons with nearly-degenerate wavelengths. Utilizing an ultrashort-pulse shaper to control the spectral phase and polarization of the photon pairs, we tailor the shape of the Hong-Ou-Mandel interference pattern, demonstrating the rules that govern the dependence of this interference pattern on the spectral phases of the photons. We then use the pulse shaper to generate all four polarization Bell states. The singlet state generated by this scheme forms a very robust decoherence-free subspace, extremely suitable for long distance fiber-optics based quantum communication.
description: 5 pages, 3 figures
Sharp estimates of noncommutative Bochner-Riesz means on two-dimensional quantum tori
Creators: name: Lai, Xudong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: Primary 46L52, 46L51, Secondary 46B15, 42B25

description: In this paper, we establish the full $L_p$ boundedness of noncommutative Bochner-Riesz means on two-dimensional quantum tori, which completely resolves an open problem raised in \cite{CXY13} in the sense of the $L_p$ convergence for two dimensions. The main ingredients are sharp estimates of noncommutative Kakeya maximal functions and geometric estimates in the plane. We make the most of noncommutative theories of maximal/square functions, together with microlocal decompositions in both proofs of sharper estimates of Kakeya maximal functions and Bochner-Riesz means.
description: 37 pages, 2 figures, to appear in Comm. Math. Phys
Stabilizing effect of nuclear quadrupole interaction on the polarization of electron-nuclear spin system in a quantum dot
Creators: name: Dzhioev, R. I.
name: Korenev, V. L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Nuclear quadrupole interaction extends the limits imposed by hyperfine interaction on the spin coherence of the electron and nuclei in a quantum dot. The strain-induced nuclear quadrupole interaction suppresses the nuclear spin flip and makes possible the zero-field dynamic nuclear polarization in self-organized InP/InGaP quantum dots. The direction of the effective nuclear magnetic field is fixed in space, thus quenching the magnetic depolarization of the electron spin in the quantum dot. The quadrupole interaction suppresses the zero-field electron spin decoherence also for the case of non-polarized nuclei. These results provide a new vision of the role of the nuclear quadrupole interaction in nanostructures: it elongates the spin memory of the electron-nuclear system.
description: 18 pages including 3 figures. Shortened version has been accepted for publication in Physical Review Letters
Η μετατροπή των βυζαντινών ναών της Θεσσαλονίκης σε oθωμανικά τεμένη: ιστορικές πηγές και αρχαιολογικά τεκμήρια
Creators: name: Μπατζικώστα, Ανδρονίκη Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Βυζαντινοί ναοί
Οθωμανικά τεμένη
Θεσσαλονίκη
Byzantine churches
Ottoman mosques
Thessaloniki

description: Σκοπός της παρούσας εργασίας ήταν η μελέτη της μετατροπής των βυζαντινών ναών της Θεσσαλονίκης σε οθωμανικά τεμένη. Στην εργασία πραγματοποιήθηκε αναλυτική μελέτη των ιστορικών πηγών και των αρχαιολογικών τεκμηρίων. Γίνεται λόγος για το πώς οι περιγραφές των μνημείων από ταξιδιώτες κατά την οθωμανική περίοδο οδήγησαν στις πρώτες έρευνες και ανασκαφές των βυζαντινών ναών της Θεσσαλονίκης από τις αρχές του περασμένου αιώνα και εξής. Στη συνέχεια, ακολουθεί ο σχολιασμός των γεγονότων των δύο αλώσεων της πόλης από τους Οθωμανούς, κυρίως όσον αφορά στον τρόπο μεταχείρισης των βυζαντινών μνημείων από τους κατακτητές. Τέλος, αναλύονται οι επεμβάσεις που δέχθηκαν οι σωζόμενοι βυζαντινοί ναοί της Θεσσαλονίκης κατά τη μετασκευή τους σε οθωμανικά τεμένη και παράλληλα γίνεται αναφορά και στις τρεις εκκλησίες της βυζαντινής περιόδου που δεν μετατράπηκαν σε τζαμιά από τους Οθωμανούς. Επιπροσθέτως, αναφέρονται και μερικά παραδείγματα χαμένων οθωμανικών τζαμιών, τα οποία σύμφωνα με την έρευνα, προήλθαν από τη μετασκευή προγενέστερων βυζαντινών ναών. Το κείμενο συμπληρώνεται από τρία παραρτήματα, όπου σχολιάζονται οι ναοί στις εκτός των τειχών περιοχές της Θεσσαλονίκης, η επαναφορά των βυζαντινών ναών στη χριστιανική λατρεία μετά την απελευθέρωση της πόλης και η θρησκευτική χριστιανική αρχιτεκτονική κατά την οθωμανική περίοδο.
description: The aim of the present thesis was the study of the conversion of the byzantine churches of Thessaloniki into ottoman mosques. The study provides a systematic examination of the historical sources and archaeological evidence. It is discussed how the descriptions of the monuments by travelers during the Ottoman period led to the first researches and excavations of the byzantine churches of Thessaloniki from the beginning of last century onwards. The following is a commentary on the events of the two conquests of the city by the Ottomans, mainly on how the conquerors treated the byzantine monuments. Finally, an analysis of the interventions received by the surviving byzantine churches of Thessaloniki during their conversion to ottoman mosques and mentions all three byzantine churches that were not converted into mosques by the Ottomans. In addition, mention some examples of lost ottoman mosques, which according to research, came from the conversion of a byzantine church. The text is followed by three appendixes, where are examined the churches out of the walls of Thessaloniki, the restoration of the byzantine churches to Orthodox Christian worship and the religious Christian architecture during the Ottoman period.
Η οργάνωση των οικισμών στο ΒΑ Αιγαίο κατά τη Μέση και Ύστερη Εποχή του Χαλκού, το παράδειγμα της Θερμής Λέσβου
Creators: name: Κωνσταντινίδου, Ελένη Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Θερμή Λέσβου
Οργάνωση οικισμών Εποχής Χαλκού
ΒΑ Αιγαίο
Thermi Lesvos
Bronze Age Settlements
NE Aegean

description: Η παρούσα εργασία αποτελεί μια προσπάθεια σύνθεσης της εικόνας των οικισμών του ΒΑ Αιγαίου κατά την περίοδο της Εποχής Χαλκού, με έμφαση στον οικισμό της Θερμής Λέσβου. Συγκεκριμένα, τις αλλαγές που παρατηρούνται από τη μετάβαση της μιας περιόδου στην άλλη όσων αφορά την αρχιτεκτονική και την οργάνωση των οικισμών. Για την πραγματοποίηση του στόχου αυτού συγκεντρώθηκαν πληροφορίες από δημοσιευμένες θέσεις του ΒΑ Αιγαίου της Εποχής Χαλκού, οι οποίες συγκρίνονται με το υλικό της Θερμής, από την δημοσίευση της Lamb, κυρίως για την ΠΕΧ, καθώς και δεδομένα από τη μελέτη των ημερολογίων των ανασκαφών της Κ’ ΕΠΚΑ, που πραγματοποιήθηκαν από το 2005-2010 με σκοπό την ανάδειξη του προϊστορικού οικισμού της Θερμής. Η ανασκαφική έρευνα της Lamb, το 1929-1933 αποκάλυψε, σε μια έκταση 6,000 τμ. περίπου, επτά οικοδομικές φάσεις, εκ των οποίων οι πέντε ανήκουν στην ΠΕΧ και οι δυο στην ΜΕΧ και ΥΕΧ. Οι οικοδομικές φάσεις αυτές παρουσιάζονται αναλυτικά και στη συνέχεια γίνεται μια αναφορά σε θέσεις σύγχρονες με τον οικισμό της Θερμής στο ΒΑ Αιγαίο και μια προσπάθεια να εντοπιστούν ομοιότητες ή διαφορές στα αρχιτεκτονικά στοιχεία αλλά και την οργάνωση των οικισμών μεταξύ τους. Η κατοίκηση στα νησιά του ΒΑ Αιγαίου σε οργανωμένους οικισμούς έχει της ρίζες της στη Νεολιθική στις περισσότερες θέσεις. Τα νησιά του ΒΑ Αιγαίου αποτελούσαν έναν ασφαλή θαλάσσιο δρόμο επικοινωνίας μεταξύ βορρά και νότου. Μεταξύ των οικισμών της Εποχής Χαλκού στο ΒΑ Αιγαίο, εντοπίζονται κοινά πολιτισμικά στοιχεία στην αρχιτεκτονική και την οργάνωση και χρήση του χώρου. Κάποια από αυτά εντοπίζονται στις κατόψεις των οικιών αλλά και στη δόμηση των κτιρίων.
description: The present paper is an attempt to gather information of the NE Aegean’s settlements during the Bronze Age, with an emphasis on the settlement of Thermi in Lesvos. Specifically, the changes observed from the transition of one period to another, in terms of the architecture and organization of the settlements.
Nonthermal pathways to ultrafast control in quantum materials
Creators: name: de la Torre, A.
name: Kennes, D. M.
name: Claassen, M.
name: Gerber, S.
name: McIver, J. W.
name: Sentef, M. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We review recent progress in utilizing ultrafast light-matter interaction to control the macroscopic properties of quantum materials. Particular emphasis is placed on photoinduced phenomena that do not result from ultrafast heating effects but rather emerge from microscopic processes that are inherently nonthermal in nature. Many of these processes can be described as transient modifications to the free-energy landscape resulting from the redistribution of quasiparticle populations, the dynamical modification of coupling strengths and the resonant driving of the crystal lattice. Other pathways result from the coherent dressing of a material's quantum states by the light field. We discuss a selection of recently discovered effects leveraging these mechanisms, as well as the technological advances that led to their discovery. A road map for how the field can harness these nonthermal pathways to create new functionalities is presented.
description: 36 pages, 12 figures; all authors contributed equally to this work
Review on possible gravitational anomalies
Creators: name: Amador, Xavier
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This is an updated introductory review of 2 possible gravitational anomalies that has attracted part of the Scientific community: the Allais effect that occur during solar eclipses, and the Pioneer 10 spacecraft anomaly, experimented also by Pioneer 11 and Ulysses spacecrafts. It seems that, to date, no satisfactory conventional explanation exist to these phenomena, and this suggests that possible new physics will be needed to account for them. The main purpose of this review is to announce 3 other new measurements that will be carried on during the 2005 solar eclipses in Panama and Colombia (Apr. 8) and in Portugal (Oct.15).
description: Published in 'Journal of Physics: Conferences Series of the American Institute of Physics'. Contribution for the VI Mexican School on Gravitation and Mathematical Physics "Approaches to Quantum Gravity" (Playa del Carmen, Quintana Roo, Mexico, Nov. 21-27, 2004). Updates to this information will be posted in http://www.lsc-group.phys.uwm.edu/~xavier.amador/anomalies.html
The use of technology and anxiety in SLA
Creators: name: Δραγατσίκα, Αναστασία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Άγχος
Απόκτηση ξένης γλώσσας
Τεχνολογία
Anxiety
Second language acquisition
Technology

description: Foreign language anxiety has been studied by many researchers. The causes that make students feel nervous and anxious have been portrayed in many studies. Time limit during the tests, teachers’ strictness or students’ personality can cause anxiety during the foreign language acquisition process. However, there is no study that portrays the anxiety that the use of technology causes. There is a great abundance of studies that focus on the effects that technology has on students’ performance but there are no studies that focus on students’ feelings towards the integration of technology. The present study focuses on students’ perceptions and emotions towards the use of technology. Thirty-nine students of a Greek private school participated in it. The results show that the majority of students do not feel anxious by the use of technology and welcome it in the foreign language acquisition process.
description: Το άγχος που βιώνουν οι μαθητές κατά τη διάρκεια της απόκτησης μιας ξένης γλώσσας και οι αιτίες που το προκαλούν έχουν μελετηθεί από πολλούς ερευνητές. Μερικές από αυτές είναι ο περιορισμός του χρόνου κατά τη διάρκεια των διαγωνισμάτων, η αυστηρή και επικριτική στάση των εκπαιδευτικών απέναντι τους και η προσωπικότητα των μαθητών. Παρόλα αυτά, δεν έχει υπάρξει κάποια έρευνα που να ασχολείται με το άγχος το οποίο προκαλεί στους μαθητές η ενσωμάτωση των νέων τεχνολογιών στην προσπάθεια απόκτησης μιας ξένης γλώσσας. Υπάρχει μία πληθώρα ερευνών που αφορά στην επίδραση των νέων τεχνολογιών στην επίδοση των μαθητών αλλά, δεν υπάρχουν έρευνες που να επικεντρώνονται στα συναισθήματα που προκαλεί στους μαθητές η ενσωμάτωση αυτών στο γλωσσικό μάθημα. Η παρούσα έρευνα, στην οποία συμμετείχαν τριάντα εννέα μαθητές ενός κέντρου ξένων γλωσσών, επικεντρώνεται στις αντιλήψεις και τα συναισθήματα των μαθητών απέναντι στη χρήση της τεχνολογίας. Τα αποτελέσματα δείχνουν πως η πλειονότητα των μαθητών τρέφει θετικά συναισθήματα απέναντι στις νέες τεχνολογίες και καλωσορίζει την ενσωμάτωση τους στο γλωσσικό μάθημα.
Προστασία και αξιοποίηση του οικοτόπου του είδους Sideritis scardica στο όρος Όλυμπος
Creators: name: Παπαμιχαήλ, Μαρία Κυριάκου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Τυχαία δειγματοληψία
Πυκνότητα πληθυσμού
Καλλιέργεια φαρμακευτικών φυτών
Random sampling
Population density
Cultivation of medical plants

description: Τα είδη του γένους Sideritis (Lamiaceae) έχουν παραδοσιακή χρήση, ως αφέψημα, για τις διάφορες θεραπευτικές τους ιδιότητες. Οι φαρμακευτικές αυτές ιδιότητες των κύριων συστατικών του τσαγιού είναι ο λόγος έξαρσης της δημοτικότητάς του, τα τελευταία χρόνια. Αυτό είχε σαν συνέπεια την εμπορευματοποίηση των ειδών Sideritis, η οποία οδήγησε στην εκτεταμένη συλλογή φυτών, με δραματικό αποτέλεσμα τη μείωση των φυσικών πληθυσμών κάποιων από αυτά. Για αυτόν τον λόγο η παρούσα εργασία μελετά τον πληθυσμό του Sideritis scardica Griseb. στο όρος Όλυμπος. Ακολουθήθηκε η μέθοδος της τυχαίας δειγματοληψίας και λήφθηκαν δεκατέσσερις δειγματοληπτικές επιφάνειες μεγέθους 100 m2 έκαστη, σε 8 πολύγωνα έρευνας. Η μέθοδος αυτή ακολουθήθηκε, διότι βοηθά στην εξαγωγή γενικευμένων συμπερασμάτων για τον πληθυσμό. Τα αποτελέσματα που προέκυψαν ήταν η πληθοκάλυψη σε σχέση με το υψόμετρο, την κλίση και την έκθεση των δειγμάτων. Το συμπέρασμα που προκύπτει είναι ότι δεν υπάρχουν σημαντικοί κίνδυνοι για το είδος στην περιοχή έρευνας και προτείνεται η εύρεση τρόπου για την υγιή οικονομική εκμετάλλευσή του, καθώς και η εφαρμογή αντίστοιχων πρακτικών για την προστασία απειλούμενων ειδών.
description: The species of genus Sideritis (Lamiaceae) have a traditional use as a decoction due to their various therapeutic properties. These pharmaceutical properties of this tea’s main ingredients are the reason why its popularity has grown significantly in recent years. This resulted in the commercialization of the Sideritis species, which led to extensive plant collection, dramatically reducing part of their natural populations. That's why this research took place, to study the population coverage of Sideritis scardica Griseb. on Mount Olympus. Fourteen sampling plots were randomly selected of 100 m2 (10 m x 10 m), in 8 survey polygons. The random sampling was applied for the selection of the sample plots as it helps draw general conclusions about the population. The results showed population coverage in terms of altitude, slope and exposure of the sample plots. The conclusion is that there are no major risks to the species in the area that was studied but the invention of a viable way to financially exploit it, is strongly suggested, in addition with similar practices that should take place for the protection of other endangered species.
Στερεοτυπικές συμπεριφορές ως προς τις αθλητικές συντάκτριες: Αλήθεια ή μύθος;
Creators: name: Κοκκινά, Λυδία Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Αθλητική δημοσιογραφία
Φεμινισμός
Αθλητικοί συντάκτες
Sports journalism
Feminism
Sports writers

description: Η παρούσα εργασία εξετάζει τον βαθμό στον οποίον υπάρχουν στερεοτυπικές συμπεριφορές απέναντι στις αθλητικές συντάκτριες. Αρχικά, το θέμα προσεγγίστηκε βιβλιογραφικά, μέσω της ανασκόπησης της διεθνούς και εγχώριας βιβλιογραφίας. Επιπρόσθετα, επιχειρήθηκε η προσέγγιση αυτού του θέματος από τη σκοπιά των ίδιων των αθλητικών συντακτριών μέσω συνεντεύξεων που διεξήχθησαν. Το δείγμα που επιλέχθηκε για την πραγματοποίηση της συγκεκριμένης έρευνας είναι γυναίκες δημοσιογράφοι, που είτε εργάζονται σήμερα είτε εργάζονταν στο παρελθόν στα Μέσα ενημέρωσης κι επιμελούνταν το αθλητικό ρεπορτάζ. Προϋπόθεση για συμμετοχή στην έρευνα ήταν όλες οι συμμετέχουσες να έχουν τουλάχιστον πενταετή εμπειρία στο αντικείμενο και να έχουν εργασθεί σε όλους τους τύπους των Μέσων, δηλαδή τηλεόραση, ραδιόφωνο, εφημερίδα και ιστοσελίδα. Στη συνέχεια, οι συνεντεύξεις αυτές μεταγράφηκαν και αναλύθηκαν μέσω της Ερμηνευτικής Φαινομενολογικής Ανάλυσης (ΕΦΑ). Τα βασικά συμπεράσματα καταδεικνύουν τη σημαντικότητα και τις επιδράσεις των στερεοτυπικών αντιλήψεων απέναντι στις αθλητικές συντάκτριες.
description: This paper examines the extent to which there are stereotypical behaviours towards female sports journalists. Initially, the subject was approached bibliographically, through the review of the international and domestic bibliography. Additionally, an attempt was made to approach this subject from the viewpoint of the female sports journalists themselves, through interviews conducted. The sample selected for this research is female sports journalists, who either still work or used to work in the Media and edited sports news. In order to take part in the research, all the participants needed to have at least five years of experience in the subject and to have worked in all types of Media, namely TV, radio, newspaper and website. Afterwards, these interviews were transcribed and analysed through the Interpretative Phenomenological Analysis (IPA). The main results prove the significance and the effects of stereotypical opinions about female journalists.
Real-time multimode dynamics of terahertz quantum cascade lasers via intracavity self-detection: observation of self mode-locked population pulsations
Creators: name: Li, H.
name: Wan, W.
name: Li, Z.
name: Cao, J. C.
name: Lepillet, S.
name: Lampin, J-F.
name: Froberger, K.
name: Columbo, L.
name: Brambilla, M.
name: Barbieri, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Mode-locking operation and multimode instabilities in Terahertz (THz) quantum cascade lasers (QCLs) have been intensively investigated during the last decade. These studies have unveiled a rich phenomenology, owing to the unique properties of these lasers, in particular their ultrafast gain medium. Thanks to this, in QCLs a modulation of the intracavity field intensity gives rise to a strong modulation of the population inversion, directly affecting the laser current. In this work we show that this property can be used to study the real-time dynamics of multimode THz QCLs, using a self-detection technique combined with a 60GHz real-time oscilloscope. To demonstrate the potential of this technique we investigate a free-running 4.2THz QCL, and observe a self-starting periodic modulation of the laser current, producing trains of regularly spaced, ~100ps-long pulses. Depending on the drive current we find two regimes of oscillation with dramatically different properties: a first regime at the fundamental repetition rate, characterised by large amplitude and phase noise, with coherence times of a few tens of periods; a much more regular second-harmonic-comb regime, with typical coherence times of ~105 oscillation periods. We interpret these measurements using a set of effective semiconductor Maxwell-Bloch equations that qualitatively reproduce the fundamental features of the laser dynamics, indicating that the observed carrier-density and optical pulses are in antiphase, and appear as a rather shallow modulation on top of a continuous wave background. Thanks to its simplicity and versatility, the demonstrated technique is a powerful tool for the study of ultrafast dynamics in THz QCLs.
Simulating a single qubit channel using a mixed state environment
Creators: name: Narang, Geetu
name: Arvind
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the class of single qubit channels with the environment modeled by a one-qubit mixed state. The set of affine transformations for this class of channels is computed analytically, employing the canonical form for the two-qubit unitary operator. We demonstrate that, 3/8 of the generalized depolarizing channels can be simulated by the one-qubit mixed state environment by explicitly obtaining the shape of the volume occupied by this class of channels within the tetrahedron representing the generalized depolarizing channels. Further, as a special case, we show that the two-Pauli Channel cannot be simulated by a one-qubit mixed state environment.
description: Published version with minor changes
การศึกษาวิจัยเรื่อง ความสัมพันธ์เชิงโครงสร้างของการจัดการความรู้ และองค์การแห่งเรียนรู้ ต่อการประกันคุณภาพการศึกษาของสถาบันอุดมศึกษา
Creators: name: ศศิธร วชิรปัญญาพงศ์
Publisher: name: มหาวิทยาลัยราชภัฏสวนดุสิต
Year: 2556
Subjects: ความสัมพันธ์เชิงโครงสร้าง, การจัดการความรู้, องค์การแห่งเรียนรู้, การประกันคุณภาพการศึกษา, สถาบันอุดมศึกษา

description: 3, 9, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Intertwining symmetry algebras of quantum superintegrable systems on the hyperboloid
Creators: name: Calzada, J. A.
name: Kuru, S.
name: Negro, J.
name: del Olmo, M. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A class of quantum superintegrable Hamiltonians defined on a two-dimensional hyperboloid is considered together with a set of intertwining operators connecting them. It is shown that such intertwining operators close a su(2,1) Lie algebra and determine the Hamiltonians through the Casimir operators. By means of discrete symmetries a broader set of operators is obtained closing a so(4,2) algebra. The physical states corresponding to the discrete spectrum of bound states as well as the degeneration are characterized in terms of unitary representations of su(2,1) and so(4,2).
description: 11 pages, 5 figures
ปัจจัยที่ส่งผลต่อพัฒนาการสุขภาวะทางจิตของนักศึกษาระหว่างการฝึกประสบการณ์วิชาชีพครู: การวิเคราะห์โดยโมเดลโค้งพัฒนาการที่มีตัวแปรแฝง
Creators: name: สรัญญา จันทร์ชูสกุล
name: อวยพร เรืองตระกูล
name: กมลวรรณ ตังธนกานนท์
Publisher: name: มหาวิทยาลัยราชภัฏสวนดุสิต
Year: 2556
Subjects: สุขภาวะทางจิต โมเดลโค้งพัฒนาการที่มีตัวแปรแฝง

description: 3, 9, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Update analysis of two-body charmed $B$ meson decays
Creators: name: Chiang, Cheng-Wei
name: Senaha, Eibun
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The charmed B decays, $B\to DP, ~D^*P$ and $DV$, are re-analyzed using the latest experimental data, where $P$ and $V$ denote the pseudoscalar meson and vector meson, respectively. We perform global fits under the assumption of flavor SU(3) symmetry. The size of the decay amplitudes and the strong phases between the topologically distinct amplitudes are studied. Predictions of the related $B_s$ decay rates are made based upon the fitted results. We also note a serious SU(3) symmetry breaking or inconsistency in the $DV$ sector.
description: 19 pages,12 figures