cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
METHODOLOGICAL BASIS FOR INCREASING MOTIVATION IN THE STUDY OF HIGHER MATHEMATICS
Creators: name: Askarova, A.
name: Gripp, Y.
name: Yeleussizova, G.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: математическое образование
мотивация обучения
повышение мотивации
процесс обучения
уровень подготовки
mathematics education
learning motivation
increasing motivation
learning process
level of training.

description: В статье рассматриваются методические основы формирования положительной мотивации при изучении математики в вузе. Выделены условия повышения мотивации, предложен метод повышения мотивации при изучении математики.
description: The article describes the methodological basis for the formation of positive motivation in the study of mathematics at the university. The conditions of increasing motivation are defined, the method of increasing motivation in studying mathematics is offered.
A multithreaded scheduling model for solving the Tower of Hanoi game in a multicore environment
Creators: name: Al-Obaidi, Alaa M.
name: Lee, Sai Peck
Publisher: name: Maejo University
Year: 2012
Subjects: multithreaded scheduling,Tower of Hanoi,work-stealing technique,divideand-conquer problem,coloured Petri nets

description: 2, 6, Maejo International Journal of Science and Technology
Development of a simple force prediction model and consistency assessment of knee movements in ten-pin bowling
Creators: name: Hsieh, Li-Cheng
name: Chung-Shun Hung
name: Wu, Hong-Wen
Publisher: name: Maejo University
Year: 2012
Subjects: ten-pin bowling,knee movement,LabVIEW,artificial neural network,physical education

description: 2, 6, Maejo International Journal of Science and Technology
Frequency Dependence of Diagonal Resistance in Fractional Quantum Hall Effect via Periodic Modulation of Magnetic Field
Creators: name: Sasaki, Shosuke
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Energy spectrum of fractional quantum Hall (FQH) states is composed of single electron energy (Landau energy) neglecting the Coulomb interactions between electrons, classical Coulomb energy and the quantum energy via quantum transitions. Herein, the sum of the Landau energy and the classical Coulomb energy depends upon the value of the filling factor continuously. However, the quantum transition energy discontinuously depends upon the value of the filling factor. This discontinuity yields energy gaps in many stable FQH states. The energy gaps for specific filling factors produce the precise confinement of Hall resistance. A new experiment is considered as follows; the magnetic strength is fixed to the value to confine the Hall resistance at the filling factor of 2/3 as an example. Moreover the magnetic modulation with frequency f is applied to the system. The frequency dependence of the diagonal resistance is measured. Then, it is shown in this paper that the diagonal resistance varies drastically at some frequency value f0. We clarify the following relation between this value f0 and the magnetic strength width dB of Hall plateaus as f0 = e dB / (4 Pi m), where -e is the charge of electron, Pi =3.141592, and m is the mass of electron.
description: 5 pages, 3 figures
Quantum Criticality in Twisted Transition Metal Dichalcogenides
Creators: name: Ghiotto, Augusto
name: Shih, En-Min
name: Pereira, Giancarlo S. S. G.
name: Rhodes, Daniel A.
name: Kim, Bumho
name: Zang, Jiawei
name: Millis, Andrew J.
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Hone, James C.
name: Wang, Lei
name: Dean, Cory R.
name: Pasupathy, Abhay N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In moiré heterostructures, gate-tunable insulating phases driven by electronic correlations have been recently discovered. Here, we use transport measurements to characterize the gate-driven metal-insulator transitions and the metallic phase in twisted WSe$_2$ near half filling of the first moiré subband. We find that the metal-insulator transition as a function of both density and displacement field is continuous. At the metal-insulator boundary, the resistivity displays strange metal behaviour at low temperature with dissipation comparable to the Planckian limit. Further into the metallic phase, Fermi-liquid behaviour is recovered at low temperature which evolves into a quantum critical fan at intermediate temperatures before eventually reaching an anomalous saturated regime near room temperature. An analysis of the residual resistivity indicates the presence of strong quantum fluctuations in the insulating phase. These results establish twisted WSe$_2$ as a new platform to study doping and bandwidth controlled metal-insulator quantum phase transitions on the triangular lattice.
Solubility, viscosity and rheological properties of water-soluble chitosan derivatives
Creators: name: Songwut Yotsawimonwat
name: Siriwat Tungtong
name: Siriporn Okonogi
name: Sombat Chowwanapoonpohn
name: Weerachai Phutdhawong
Publisher: name: Maejo University
Year: 2012
Subjects: chitosan,chitosan derivatives,O-carboxymethyl chitosan,N,O-carboxymethyl chitosan,N-[(2-hydroxy-3-trimethylammonium)propyl] chitosan chloride,quaternised carboxymethyl chitosan,O-carboxymethyl-N-[(2-hydroxy-3-trimethyl ammonium) propyl] chitosan chloride,

description: 2, 6, Maejo International Journal of Science and Technology
Massive Young Stellar Objects in the Large Magellanic Cloud: water masers and ESO-VLT 3-4 micron spectroscopy
Creators: name: Oliveira, J. M.
name: van Loon, J. Th
name: Stanimirovic, S.
name: Zijlstra, A. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the conditions of star formation in the Large Magellanic Cloud. We have conducted a survey for water maser emission arising from massive young stellar objects in the 30 Doradus region (N 157) and several other H II regions in the Large Magellanic Cloud (N 105A, N 113 and N 160A). We have identified a new maser source in 30 Dor at the systemic velocity of the LMC. We have obtained 3-4 micron spectra, with the ESO Very Large Telescope, of two candidate young stellar objects. N 105A IRS1 shows H recombination line emission and its Spectral Energy Distribution (SED) and mid-infrared colours are consistent with a massive young star ionising the molecular cloud. N 157B IRS1 is identified as an embedded young object, based on its SED and a tentative detection of water ice. The data on these four H II regions are combined with mid-infrared archival images from the Spitzer Space Telescope to study the location and nature of the embedded massive young stellar objects and signatures of stellar feedback. Our analysis of 30 Dor, N 113 and N 160A confirms the picture that the feedback from the massive O and B-type stars, which creates the H II regions, also triggers further star formation on the interfaces of the ionised gas and the surrounding molecular cloud. Although in the dense cloud N 105A star formation seems to occur without evidence of massive star feedback, the general conditions in the LMC seem favourable for sequential star formation as a result of feedback. In an appendix we present water maser observations of the galactic red giants R Doradus and W Hydrae.
description: MNRAS accepted; 18 page, 18 figures and 6 tables (one colour figure). A full resolution version (pdf file) is available from http://www.astro.keele.ac.uk/~jacco/papers/SF_LMC_2006.pdf
Brownian molecular motors driven by rotation-translation coupling
Creators: name: Geislinger, Brian
name: Kawai, Ryoichi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We investigated three models of Brownian motors which convert rotational diffusion into directed translational motion by switching on and off a potential. In the first model a spatially asymmetric potential generates directed translational motion by rectifying rotational diffusion. It behaves much like a conventional flashing ratchet. The second model utilizes both rotational diffusion and drift to generate translational motion without spatial asymmetry in the potential. This second model can be driven by a combination of a Brownian motor mechanism (diffusion driven) or by powerstroke (drift driven) depending on the chosen parameters. In the third model, elements of both the Brownian motor and powerstroke mechanisms are combined by switching between three distinct states. Relevance of the model to biological motor proteins is discussed.
description: 11 pages, 8 figures
Development of a rehabilitation apparatus to actuate upper extremity passive motion
Creators: name: Ching-Hua Chiu
name: Chung-Shun Hung
name: Yi-Hung Ho
name: Cheng, Wei-Lin
Publisher: name: Maejo University
Year: 2012
Subjects: rehabilitation apparatus,post-stroke patient,upper extremity passive motion

description: 2, 6, Maejo International Journal of Science and Technology
On Kurtosis-limited Enumerative Sphere Shaping for Reach Increase in Single-span Systems
Creators: name: Gültekin, Yunus Can
name: Alvarado, Alex
name: Vassilieva, Olga
name: Kim, Inwoong
name: Palacharla, Paparao
name: Okonkwo, Chigo M.
name: Willems, Frans M. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The effect of decreasing the kurtosis of channel inputs is investigated for the first time with an algorithmic shaping implementation. No significant gains in decoding performance are observed for multi-span systems, while an increase in reach is obtained for single-span transmission.
description: 4 pages, 5 figures, accepted to be presented at the ECOC 2021
Integrating association rules and case-based reasoning to predict retinopathy
Creators: name: Vimala Balakrishnan
name: Shakouri, Mohammad R.
name: Hoodeh, Hooman
Publisher: name: Maejo University
Year: 2012
Subjects: predictive system,data mining,association rules,Apriori algorithm,casebased reasoning

description: 3, 6, Maejo International Journal of Science and Technology
title: Логико-предметный подход к решению задач искусственного интеллекта для сложных структурированных объектов
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2023

description: Учебное пособие содержит авторские теоретические результаты об исследовании сложных структурированных объектов с использованием языка исчисления предикатов. Особое внимание уделено вычислительной сложности рассматриваемых задач. Эти задачи, как правило, NP-трудны и, следовательно, имеют экспоненциальную вычислительную сложность. Показано, что при моделировании исходных задач с помощью бинарных строк эти строки имеют экспоненциальную по сравнению с записью данных предикатной формулы длину записи. В связи с этим полиномиальные (от длины записи строк, задающих исходные данные) алгоритмы обработки строк имеют экспоненциальную вычислительную сложность от длины записи формул, задающих исходные данные. Рассматривается задача распознавания сложного структурированного объекта. Вводится понятие изоморфизма элементарных конъюнкций предикатных формул, с помощью которого решаются следующие задачи: построение многоуровневого (иерархического) описания, существенно уменьшающее вычислительную сложность задач; уменьшение вычислительной сложности задачи «Конъюнктивный булевский запрос»; построение логико-предикатной и логико-предикатной нечёткой сети; построение метрики в множестве элементарных конъюнкций; распознавание в условиях неполной информации; мультиагентное описание объекта; построение онтологии. Решения всех задач снабжены модельными примерами. Основные понятия исчисления предикатов и доказательства некоторых теорем вынесены в приложения. Подготовлено с учётом требований Федерального государственного образовательного стандарта высшего образования. Учебное пособие предназначено для студентов, обучающихся по направлениям подготовки, связанным с искусственным интеллектом, изучающих дисциплины «Технологии искусственного интеллекта», «Искусственный интеллект», «Искусственный интеллект и наука о данных».
New exact travelling wave solutions of generalised sinh-Gordon and (2 + 1)-dimensional ZK-BBM equations
Creators: name: Kumar, Sachin
name: Gupta, Rajesh Kumar
name: Lal, Bhajan
Publisher: name: Maejo University
Year: 2012
Subjects: (G'/G) - expansion method,travelling wave solutions,generalised sinh-Gordon Equation,(2+1) dimensional ZK-BBM equation

description: 3, 6, Maejo International Journal of Science and Technology
Deeply embedded objects and shocked molecular hydrogen: The environment of the FU Orionis stars RNO 1B/1C
Creators: name: Quanz, S. P.
name: Henning, Th.
name: Bouwman, J.
name: Linz, H.
name: Lahuis, F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Spitzer IRAC and IRS observations of the dark cloud L1287. The mid-infrared (MIR) IRAC images show deeply embedded infrared sources in the vicinity of the FU Orionis objects RNO 1B and RNO 1C suggesting their association with a small young stellar cluster. For the first time we resolve the MIR point source associated with IRAS 00338+6312 which is a deeply embedded intermediate-mass protostar driving a known molecular outflow. The IRAC colors of all objects are consistent with young stars ranging from deeply embedded Class 0/I sources to Class II objects, part of which appear to be locally reddened. The two IRS spectra show strong absorption bands by ices and dust particles, confirming that the circumstellar environment around RNO 1B/1C has a high optical depth. Additional hydrogen emission lines from pure rotational transitions are superimposed on the spectra. Given the outflow direction, we attribute these emission lines to shocked gas in the molecular outflow powered by IRAS 00338+6312. The derived shock temperatures are in agreement with high velocity C-type shocks.
description: (1) Max Planck Institute for Astronomy, (2) SRON Netherlands Institute for Space Research (Groningen); accepted for publication in ApJ, 32 pages in preprint style including 4 tables and 11 figures (one of which is in color)
Dia- and paramagnetic Meissner effect from odd-frequency pairing in multi-orbital superconductors
Creators: name: Parhizgar, Fariborz
name: Black-Schaffer, Annica M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The Meissner effect is one of the defining properties of superconductivity, with a conventional superconductor completely repelling an external magnetic field. In contrast to this diamagnetic behavior, odd-frequency superconducting pairing has often been seen to produce a paramagnetic Meissner effect, which instead makes the superconductor unstable due to the attraction of magnetic field. In this work we study how both even- and odd-frequency superconducting pairing contributes to the Meissner effect in a generic two-orbital superconductor with a tunable odd-frequency pairing component. By dividing the contributions to the Meissner effect into intra- and inter-band processes, we find that the odd-frequency pairing actually generates both dia- and paramagnetic Meissner responses, determined by the normal-state band structure. More specifically, for materials with two electron-like (hole-like) low-energy bands we find that the odd-frequency inter-band contribution is paramagnetic but nearly canceled by a diamagnetic odd-frequency intra-band contribution. Combined with a diamagnetic even-frequency contribution, such superconductors thus always display a large diamagnetic Meissner response to an external magnetic field, even in the presence of large odd-frequency pairing. For materials with an inverted, or topological, band structure, we find the odd-frequency inter-band contribution to instead be diamagnetic and even the dominating contribution to the Meissner effect in the near-metallic regime. Taken together, our results show that odd-frequency pairing in multi-orbital superconductors does not generate a destabilizing paramagnetic Meissner effect and can even generate a diamagnetic response in topological materials.
description: 11 pages, 7 figures
Differentiation of a Hyperthermophilic Archaeon Pyrococcus sp. strain Pikanate 5017, by Arbitrarily Primed PCR
Creators: name: Patlada Pasomsup
name: Gonzalez, Juan Miguel
name: Portillo, Maria Carmen
name: Veeranun Pongsapukdee
name: Wirojne Kanoksilapatham
Publisher: name: Silpakorn University Research and Development Institute
Year: 2011
Subjects: Thermococcales, Pyrococcus, Thermococcus, fingerprint, hyperthermophile, hot spring

description: 1, 5, Silpakorn University Science and Technology Journal
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¿Ð»Ð°Ð½Ð° ÐºÐ¾Ð½ÑÐµÐ½ÑÑÐ°ÑÐ¸Ð¸ Ð¸ ÑÐ°Ð·Ð¼ÐµÑÐµÐ½Ð¸Ñ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð°
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
Creators: name: ÐÐ¾Ð¼ÑÐµÐ½ÐºÐ¾, Ð®.
Publisher: name: [ÐÐÐ]
Year: 1979
Subjects: ÐÐ°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÐ½Ð°Ñ Ð¿ÑÐ¾Ð¼ÑÑÐ»ÐµÐ½Ð½Ð¾ÑÑÑ Ð Ð¾ÑÑÐ¸Ð¸

description: Ð ÑÑÐµÐ±Ð½Ð¾Ð¼ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ð¸ Ð¸Ð·Ð»Ð°Ð³Ð°ÐµÑÑÑ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ ÐºÑÑÑÐ¾Ð²Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ° Ð¿Ð¾ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐµ Ð¿ÑÐ¾Ð¼ÑÑÐ»ÐµÐ½Ð½Ð¾ÑÑÐ¸. ÐÑÐ¸Ð²ÐµÐ´ÐµÐ½Ð° Ð¾Ð±ÑÐ°Ñ Ð¿Ð¾ÑÑÐ°Ð½Ð¾Ð²ÐºÐ° Ð·Ð°Ð´Ð°ÑÐ¸ ÐºÐ¾Ð½ÑÐµÐ½ÑÑÐ°ÑÐ¸Ð¸ Ð¸ ÑÐ°Ð·Ð¼ÐµÑÐµÐ½Ð¸Ñ Ð¿ÑÐ¾Ð¼ÑÑÐ»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð°, ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐµ Ð²Ð¸Ð´Ñ ÐµÐµ Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹. ÐÐ¾Ð´ÑÐ¾Ð±Ð½Ð¾ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¾Ð´Ð½Ð¾Ð¿ÑÐ¾Ð´ÑÐºÑÐ¾Ð²ÑÐµ ÑÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð² Ð¼Ð°ÑÑÐ¸ÑÐ½Ð¾Ð¹ Ð¸ ÑÐµÑÐµÐ²Ð¾Ð¹ Ð¿Ð¾ÑÑÐ°Ð½Ð¾Ð²ÐºÐ°Ñ, Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ñ Ð¿ÑÐ¸Ð¼ÐµÑÑ ÑÐ°ÑÑÐµÑÐ¾Ð². Ð Ð¾Ð´Ð½Ð¾Ð¹ Ð¸Ð· Ð½Ð¸Ñ ÑÑÐ¸ÑÑÐ²Ð°ÐµÑÑÑ, ÑÑÐ¾ Ð·Ð°ÑÑÐ°ÑÑ Ð½Ð° Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð¾ ÐµÐ´Ð¸Ð½Ð¸ÑÑ Ð¿ÑÐ¾Ð´ÑÐºÑÐ¸Ð¸ Ð¸ ÑÐ´ÐµÐ»ÑÐ½ÑÐµ ÐºÐ°Ð¿Ð¸ÑÐ°Ð»ÑÐ½ÑÐµ Ð²Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð½Ð° ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð¾ Ð¸ ÑÐµÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ñ ÑÐ½Ð¸Ð¶Ð°ÑÑÑÑ Ð¿Ð¾ Ð¼ÐµÑÐµ ÑÐ¾ÑÑÐ° Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐµÐ¹. ÐÐ¾ÑÐ¾Ð±Ð¸Ðµ Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾ÑÑÐ¸ 1738. ÐÐ½Ð¾ Ð¼Ð¾Ð¶ÐµÑ Ð±ÑÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¾ ÑÑÑÐ´ÐµÐ½ÑÐ°Ð¼Ð¸ Ð´ÑÑÐ³Ð¸Ñ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾ÑÑÐµÐ¹ Ð¿ÑÐ¸ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ð¸ Ð¿ÑÐ¾ÐµÐºÑÐ¾Ð² Ð½Ð° Ð°Ð½Ð°Ð»Ð¾Ð³Ð¸ÑÐ½ÑÑ ÑÐµÐ¼Ñ.
The Critical State of Aboriginal Languages in Canada
Creators: name: Kirkness, Verna J.
Publisher: name: Canadian Journal of Native Education
Year: 2021

description: The Aboriginal peoples of Canada believe that the protection of their languages is an inherent right, a treaty right, a constitutional right, and an Aboriginal right. It was believed that the treaties entered into at the turn of the century would protect their way of life so that their values and practices would continue "as long as the sun shines, the grass grows and the rivers flow." Subsequent international and national legal foundations support the claim that Aboriginal languages must be protected. Further to this, Aboriginal peoples believe that the church and state committed a moral atrocity concerning the loss of their languages and traditional mores. There are legal and moral foundations to confirm that Aboriginal peoples have a firm basis for calling on the Government of Canada to enact legislation to protect and revitalize Aboriginal languages.
description: Canadian Journal of Native Education, Vol. 22 No. 1 (1998)
Electroweak-Skyrmion as Asymmetric Dark Matter
Creators: name: Hamada, Yu
name: Kitano, Ryuichiro
name: Kurachi, Masafumi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a scenario that the Electroweak-Skyrmion, a solitonic object made of the Higgs field and the electroweak gauge fields, is identified as an asymmetric dark matter. In this scenario, the relic abundance of the dark matter is related to the baryon asymmetry of the Universe through a sphaleron-like process. We show that the observed ratio of dark matter abundance to the baryon asymmetry can be explained by this scenario with an appropriate choice of model parameters that is allowed by currently available experimental constraints.
description: 22pages, 7 figures. v2: published version
Low-momentum interactions with smooth cutoffs
Creators: name: Bogner, S. K.
name: Furnstahl, R. J.
name: Ramanan, S.
name: Schwenk, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Nucleon-nucleon potentials evolved to low momentum, which show great promise in few- and many-body calculations, have generally been formulated with a sharp cutoff on relative momenta. However, a sharp cutoff has technical disadvantages and can cause convergence problems at the 10-100 keV level in the deuteron and triton. This motivates using smooth momentum-space regulators as an alternative. We generate low-momentum interactions with smooth cutoffs both through energy-independent renormalization group methods and using a multi-step process based on the Bloch-Horowitz approach. We find greatly improved convergence for calculations of the deuteron and triton binding energies in a harmonic oscillator basis compared to results with a sharp cutoff. Even a slight evolution of chiral effective field theory interactions to lower momenta is beneficial. The renormalization group preserves the long-range part of the interaction, and consequently the renormalization of long-range operators, such as the quadrupole moment, the radius and 1/r, is small. This demonstrates that low-energy observables in the deuteron are reproduced without short-range correlations in the wave function.
description: 29 pages, 19 figures
GEOGRAFIK KO'RSATKICHLARNING FUQAROLIK HUQUQIY MAQOMI
Creators: name: Jumambetov, Rasul
Publisher: name: Zenodo
Year: 2025

description: Hozirgi davrda xalqaro savdo munosabatlarining takomillashishi va globalizatsiya jarayonining rivojlanishi natijasida geografik ko’rsatkichlar muhim iqtisodiy vositaga aylandi. Mahalliy mahsulotlar sifati, ularning kelib chiqish joyi va geografik xususiyatlari ko‘pincha ishlab chiqaruvchilarga nisbatan iqtisodiy ustunlik beradi. Shu nuqtai nazardan, geografik ko‘rsatkichlar savdo-sotiqda, iste’molchilarning manfaatini va tanlovini hurmat qilishda, madaniy meros sifatida jahon bozorida o’z o’rniga ega bo’lishda muhim ahamiyat kasb etadi. Shu kabi sabablarga bog’liq ravishda fuqarolik huquqida geografik ko’rsatkichlar shu sohada tadqiqotlar olib borilishga va qonuniy tartibga solinishi lozimdir.
1-Density Operators and Algebraic Version of The Hohenberg-Kohn Theorem
Creators: name: Panin, A. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Interrelation of the Coleman's representabilty theory for 1-density operators and abstract algebraic form of the Hohenberg-Kohn theorem is studied in detail. Convenient realization of the Hohenberg-Kohn set of classes of 1-electron operators and the Coleman's set of ensemble representable 1-density operators is presented. Dependence of the Hohenberg-Kohn class structure on the boundary properties of the ground state 1-density operator is established and is illustrated on concrete simple examples. Algorithm of restoration of many electron determinant ensembles from a given 1-density diagonal is described. Complete description of the combinatorial structure of Coleman's polyhedrons is obtained.
description: AMSLaTex, 37 pages, 4 figures, 1 table
A General Framework for Learning Prosodic-Enhanced Representation of Rap Lyrics
Creators: name: Liang, Hongru
name: Wang, Haozheng
name: Li, Qian
name: Wang, Jun
name: Xu, Guandong
name: Chen, Jiawei
name: Wei, Jin-Mao
name: Yang, Zhenglu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Learning and analyzing rap lyrics is a significant basis for many web applications, such as music recommendation, automatic music categorization, and music information retrieval, due to the abundant source of digital music in the World Wide Web. Although numerous studies have explored the topic, knowledge in this field is far from satisfactory, because critical issues, such as prosodic information and its effective representation, as well as appropriate integration of various features, are usually ignored. In this paper, we propose a hierarchical attention variational autoencoder framework (HAVAE), which simultaneously consider semantic and prosodic features for rap lyrics representation learning. Specifically, the representation of the prosodic features is encoded by phonetic transcriptions with a novel and effective strategy~(i.e., rhyme2vec). Moreover, a feature aggregation strategy is proposed to appropriately integrate various features and generate prosodic-enhanced representation. A comprehensive empirical evaluation demonstrates that the proposed framework outperforms the state-of-the-art approaches under various metrics in different rap lyrics learning tasks.
title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÑÐ°ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ ÑÐ¸Ð½Ñ ÑÐ¾Ð½Ð½Ð¾Ð³Ð¾ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ ÑÐ¸Ð¿Ð° ÐÐ¡-325-23/12 Ñ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ð¼ ÑÐµÐ³ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð²Ð¾Ð·Ð±ÑÐ¶Ð´ÐµÐ½Ð¸Ñ
title: Ð¼Ð°Ð³Ð¸ÑÑÐµÑÑÐºÐ°Ñ Ð´Ð¸ÑÑÐµÑÑÐ°ÑÐ¸Ñ
titleType: Subtitle
Creators: name: ÐÐµÐ±ÐµÐ´ÐµÐ², ÐÐ¸ÑÐ°Ð¸Ð»
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: 2016
Subjects: Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¼Ð°ÑÐ¸Ð½Ñ ÑÐ¸Ð½Ñ ÑÐ¾Ð½Ð½ÑÐµ
ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ ÐÐ°ÑÐºÐ°-ÐÐ¾ÑÐµÐ²Ð°

description: ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÑÐ°ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ ÑÐ¸Ð½ÑÑÐ¾Ð½Ð½Ð¾Ð³Ð¾ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ Ñ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ð¼ ÑÐµÐ³ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸ÐµÐ¼. ÐÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ð½ÑÐµ ÑÐ°ÑÑÐµÑÑ: Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ°ÑÐ½ÑÑ Ð·Ð²ÐµÐ½ÑÐµÐ² ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐµÐ³ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ. ÐÐ¾ÑÑÑÐ¾ÐµÐ½Ð½ÑÐµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸: Ð°Ð¼Ð¿Ð»Ð¸ÑÑÐ´Ð½ÑÐµ Ð¸ ÑÐ°Ð·Ð¾Ð²ÑÐµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ ÑÐ¸Ð½ÑÑÐ¾Ð½Ð½Ð¾Ð³Ð¾ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ Ñ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ð¼ ÑÐµÐ³ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð´Ð»Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÐ¾Ð² ÑÑÐ¸Ð»ÐµÐ½Ð¸Ñ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¸Ð½Ð¶ÐµÐ½ÐµÑÐ½Ð¾Ð³Ð¾ Ð¿Ð°ÐºÐµÑÐ° MathCAD. ÐÑÑÐ²Ð»ÐµÐ½ ÑÐµÐ¶Ð¸Ð¼ ÑÑÐ»Ð¾Ð²Ð½Ð¾Ð¹ ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ Ð¿ÑÐ¸ Ð·Ð°Ð´Ð°Ð½Ð½ÑÑ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ°Ñ ÑÐ¸Ð½ÑÑÐ¾Ð½Ð½Ð¾Ð³Ð¾ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ Ð¸ ÑÐµÐ¶Ð¸Ð¼Ð°. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ ÑÐ¿Ð¾ÑÐ¾Ð±Ñ Ð»Ð¸ÐºÐ²Ð¸Ð´Ð°ÑÐ¸Ð¸ Ð¸Ð½ÑÐµÑÐ²Ð°Ð»Ð° ÑÑÐ»Ð¾Ð²Ð½Ð¾Ð¹ ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¼ÐµÑÐ¾Ð´Ð° Ð»Ð¾Ð³Ð°ÑÐ¸ÑÐ¼Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ°ÑÑÐ¾ÑÐ½ÑÑ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº. ÐÐ°Ð¿Ð¸ÑÐ°Ð½Ð° Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð° Ð´Ð»Ñ Ð¿ÑÐ¾Ð²ÐµÑÐºÐ¸ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² ÑÐ°ÑÑÑÑÐ° Ð² Ð¸Ð½Ð¶ÐµÐ½ÐµÑÐ½Ð¾Ð¼ Ð¿Ð°ÐºÐµÑÐµ Matlab.
description: Made research work: about steady-state stability of synchronous motor with self-adjusting. Made calculation: elementary unit characteristic of regulating system. Drawn characteristics: peak characteristic line and phasic characteristic line of synchronous motor with self-adjusting, with different amplification gain in MathCAD application. Explored conditional stability mode in preselected state. The methods of elimination the interval of conditional stability by the method of logarithmic frequency characteristics. Coded Matlab application in order to verify the results.
Reproducibility of Non-X-ray Background for the X-ray Imaging Spectrometer aboard Suzaku
Creators: name: Tawa, Noriaki
name: Hayashida, Kiyoshi
name: Nagai, Masaaki
name: Nakamoto, Hajime
name: Tsunemi, Hiroshi
name: Yamaguchi, Hiroya
name: Ishisaki, Yoshitaka
name: Miller, Eric
name: Mizuno, Tsunefumi
name: Dotani, Tadayasu
name: Ozaki, Masanobu
name: Katayama, Haruyoshi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: One of the advantages of the X-ray Imaging Spectrometer (XIS) system on board Suzaku is its low and stable non-X-ray background (NXB). In order to make the best use of this advantage, modeling the NXB spectra with high accuracy is important to subtract them from the spectra of on-source observations. We construct an NXB database by collecting XIS events when the dark Earth covers the XIS FOV. The total exposure time of the NXB data is about 785 ks for each XIS. It is found that the count rate of the NXB anti-correlates with the cut-off-rigidity and correlates with the count rate of the PIN upper discriminator (PIN-UD) in Hard X-ray Detector on board Suzaku. We thus model the NXB spectrum for a given on-source observation by employing either of these parameters and obtain a better reproducibility of the NXB for the model with PIN-UD than that with the cut-off-rigidity. The reproducibility of the NXB model with PIN-UD is 4.55-5.63% for each XIS NXB in the 1-7 keV band and 2.79-4.36% for each XIS NXB in the 5-12 keV band for each 5 ks exposure of the NXB data. This NXB reproducibility is much smaller than the spatial fluctuation of the cosmic X-ray background in the 1-7 keV band, and is almost comparable to that in the 5-12 keV band.
description: 25 pages, 13 figures, accepted for publication in PASJ (Suzaku Special Issue)
Bulk acoustofluidic devices driven by thin-film transducers and whole-system resonance modes
Creators: name: Steckel, André G.
name: Bruus, Henrik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In acoustofluidics, acoustic resonance modes for fluid and microparticle handling are traditionally excited by bulk piezoelectric transducers. In this work, we demonstrate by numerical simulation in three dimensions (3D) that integrated piezoelectric thin-film transducers constituting less than 0.1% of the device work equally well. The simulations are done using a well-tested and experimentally validated numerical model. Our proof-of-concept example is a water-filled straight channel embedded in a mm-sized glass chip with a 1-um thick thin-film transducer made of (Al,Sc)N. We compute the acoustic energy, streaming, and radiation force, and show that it is comparable to that of a conventional silicon-glass device actuated by a bulk PZT transducer. The ability of the thin-film transducer to create the desired acoustofluidic effects in bulk acoustofluidic devices rely on three physical aspects: The in-plane-expansion of the thin-film transducer under the orthogonal applied electric field, the acoustic whole-system resonance of the device, and the high Q-factor of the elastic solid constituting the bulk part of the device. Consequently, the thin-film device is surprisingly insensitive to the Q-factor and resonance properties of the thin-film transducer.
description: 12 pages, 8 pdf figures, compiles using JASAnew.cls
Dark energy parameterizations and their effect on dark halos
Creators: name: Liberato, Lamartine
name: Rosenfeld, Rogerio
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There is a plethora of dark energy parameterizations that can fit current supernovae Ia data. However, this data is only sensitive to redshifts up to order one. In fact, many of these parameterizations break down at higher redshifts. In this paper we study the effect of dark energy models on the formation of dark halos. We select a couple of dark energy parameterizations which are sensible at high redshifts and compute their effect on the evolution of density perturbations in the linear and non-linear regimes. Using the Press-Schechter formalism we show that they produce distinguishable signatures in the number counts of dark halos. Therefore, future observations of galaxy clusters can provide complementary constraints on the behavior of dark energy.
description: 17 pages, 15 figures
Predicting Solvation Free Energies in Non-Polar Solvents using Classical Density Functional Theory based on the PC-SAFT equation of state
Creators: name: Eller, Johannes
name: Matzerath, Tanja
name: van Westen, Thijs
name: Gross, Joachim
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose a predictive Density Functional Theory (DFT) for the calculation of solvation free energies. Our approach is based on a Helmholtz free-energy functional that is consistent with the perturbed-chain SAFT (PC-SAFT) equation of state. This allows a coarse-grained description of the solvent, based on an inhomogeneous density of PC-SAFT segments. The solute, on the other hand, is described in full detail by atomistic Lennard-Jones interaction sites. The approach is entirely predictive, as it only takes the PC-SAFT parameters of the solvent and the force-field parameters of the solute as input. No adjustable parameters or empirical corrections are involved. The framework is applied to study self-solvation of n-alkanes and to the calculation of residual chemical potentials in binary solvent mixtures. Our DFT approach accurately predicts solvation free energies of small molecular solutes in three different solvents. Additionally, we show the calculated solvation free energies agree well with those obtained by molecular dynamics simulations and with the residual chemical potential calculated by the bulk PC-SAFT equation of state. We observe higher deviations for the solvation free energy of systems with significant solute-solvent Coulomb interactions.
Preparing First Nations Students for College: The Experience of the Squamish Nation of British Columbia
Creators: name: Wright, Dennis A.
Publisher: name: Canadian Journal of Native Education
Year: 2021

description: The Squamish Nation of British Columbia initiated a -program to improve the suc­ cess rate of their postsecondary students through a partnership with a local com­munity college. Accepting principles of First Nations self-determination, the partnership empowered the Squamish Nation to participate fully in developing a college transition program. The program assisted students by providing an initial skill assessment, developmental instruction, and ongoing support services. The success rate of students enrolled in the program demonstrated the benefits of the partnership. The experience of the Squamish Nation indicated that as colleges ac­cept First Nations self-determination more First Nations students will succeed.
description: Canadian Journal of Native Education, Vol. 22 No. 1 (1998)
Parent-teacher conferences : a descriptive study of student, parent and teacher opinions
Creators: name: MacDonald, Barry A.
Publisher: name: University of British Columbia
Year: 2011

description: This study surveyed students, parents and teachers on a variety of matters that bear directly on the parent-teacher conference as a process of reporting pupil progress. To this end 669 pupils from grades 4, 7 and 10; 298 of their parents; and 101 of their elementary and secondary teachers (from a British Columbian school district covering rural and urban areas) responded to the questionnaires. Its primary purpose was to survey and to describe pupil, parent and teacher perceptions and feelings about a number of dimensions of communication between the three parties about pupil performance at school; and to explore the data for patterns that might indicate matters upon which efforts could be focussed for the improvement of communication and collaboration between the parties. The latter instruments were constructed specifically for the purposes of the investigation and yielded the data collected. Gender, grade level, perceived best and worst grades and school (French Immersion and degrees of socio-cultural advantage or disadvantage) were variables analyzed for students. Parent responses were analyzed by gender, total number of school-aged children and school. Years of teaching experience, educational level, school and gender were analyzed for teachers. Aggregate descriptive results indicated on average that while 40% of students, 52% of parents and 51% of teachers were comfortable with the parent-teacher conference, 40% of students and parents and 30% of teachers reported discomfort or dissatisfaction with matters pertaining to parent-teacher conferences. The following issues were identified and discussed: (a) communication skills in-servicing for teachers; (b) time length for conferences; (c) provision of receiving assistance to parents for discussion of student performance with pupils; and (d) alternate conference formats (e.g., student-led conference).
FEMINISM AS A LITERARY WORK
Creators: name: Nematilloyeva, Farangiz
Publisher: name: Zenodo
Year: 2023

description: This article discusses the ideology of Feminism, which appeared in the Western world in the 18th century, and its roots. It is analyzed that feminism brings fundamental changes to women in politics, public sphere, workplace, family and cultural spheres, including art and literature. You can see that gender inequality has been a part of culture for hundreds of years, and as a result, in many cases, women have been oppressed and restricted in many ways. In the article, you can get acquainted with the general view of feminist ideas and values, as well as with feminist writers and writers who lived and created in different literary periods.
Understanding mechanisms of thermal expansion in PbTiO$_3$ thin-films from first principles: role of high-order phonon-strain anharmonicity
Creators: name: Ritz, Ethan T.
name: Benedek, Nicole A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The thermal properties of materials are critically important to various technologies and are increasingly the target of materials design efforts. However, it is only relatively recent advances in first-principles computational techniques that have enabled researchers to explore the microscopic mechanisms of thermal properties, such as thermal expansion. We use the Grüneisen theory of thermal expansion in combination with density functional calculations and the quasiharmonic approximation to uncover mechanisms of thermal expansion in PbTiO$_3$ thin-films in terms of elastic and vibrational contributions to the free energy. Surprisingly, we find that although the structural parameters of PbTiO$_3$ thin-films evolve with temperature as if they are dominated by linear elasticity, PbTiO$_3$ thin-films are strongly anharmonic, with large changes in the elastic constants and Grüneisen parameters with both misfit strain and temperature. We show that a fortuitous near-cancellation between different types of anharmonicity gives rise to this behavior. Our results illustrate the importance of high-order phonon-strain anharmonicity in determining the temperature-dependent structural parameters of PbTiO$_3$ thin-films, and highlight the complex manner in which thermal expansion, misfit strain and elastic and vibrational properties are intertwined.
A Wideband Sliding Correlation Channel Sounder in 65 nm CMOS: Evaluation Board Performance
Creators: name: Shakya, Dipankar
name: Wu, Ting
name: Knox, Michael E.
name: Rappaport, Theodore S.
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: Emerging applications such as wireless sensing, position location, robotics, and many more are driven by the ultra-wide bandwidths available at millimeter-wave (mmWave) and Terahertz (THz) frequencies. The characterization and efficient utilization of wireless channels at these extremely high frequencies require detailed knowledge of the radio propagation characteristics of the channels. Such knowledge is developed through empirical observations of operating conditions using wireless transceivers that measure the impulse response through channel sounding. Today, cutting-edge channel sounders rely on several bulky RF hardware components with complicated interconnections, large parasitics, and sub-GHz RF bandwidth. This paper presents a compact sliding correlation-based channel sounder baseband built on a monolithic integrated circuit (IC) using 65 nm CMOS, implemented as an evaluation board achieving a 2 GHz RF bandwidth. The IC is the worlds first gigabit-per-second channel sounder baseband implemented in low-cost CMOS. The presented single-board system can be employed at both the transmit and receive baseband to study multipath characteristics and path loss. Thus, the singleboard implementation provides an inexpensive and compact solution for sliding correlation-based channel sounding with 1 ns multipath delay resolution.
description: 5 pages, 10 figures, Transactions on Circuits and Systems-II: Express Briefs
Torus quotients of Schubert varieties in the Grassmannian $G_{2,n}$
Creators: name: Kannan, S. Senthamarai
name: Nayek, Arpita
name: Saha, Pinakinath
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14M15

description: Let $G=SL(n, \mathbb{C}),$ and $T$ be a maximal torus of $G,$ where $n$ is a positive even integer. In this article, we study the GIT quotients of the Schubert varieties in the Grassmannian $G_{2,n}.$ We prove that the GIT quotients of the Richardson varieties in the minimal dimensional Schubert variety admitting stable points in $G_{2,n}$ are projective spaces. Further, we prove that the GIT quotients of certain Richardson varieties in $G_{2,n}$ are projective toric varieties. Also, we prove that the GIT quotients of the Schubert varieties in $G_{2,n}$ have at most finite set of singular points. Further, we have computed the exact number of singular points of the GIT quotient of $G_{2,n}.$
description: 24 pages
On two reversible cellular automata with two particle species
Creators: name: Klobas, Katja
name: Prosen, Tomaž
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: We introduce a pair of time-reversible models defined on the discrete space-time lattice with 3 states per site, specifically, a vacancy and a particle of two flavours (species). The local update rules reproduce the rule 54 reversible cellular automaton when only a single species of particles is present, and satisfy the requirements of flavour exchange (C), space-reversal (P), and time-reversal (T) symmetries. We find closed-form expressions for three local conserved charges and provide an explicit matrix product form of the grand canonical Gibbs states, which are identical for both models. For one of the models this family of Gibbs states seems to be a complete characterisation of equilibrium (i.e. space and time translation invariant) states, while for the other model we empirically find a sequence of local conserved charges, one for each support size larger than 2, hinting to its algebraic integrability. Finally, we numerically investigate the behaviour of spatio-temporal correlation functions of charge densities, and test the hydrodynamic prediction for the model with exactly three local charges. Surprisingly, the numerically observed 'sound velocity' does not match the hydrodynamic value. The deviations are either significant, or they decay extremely slowly with the simulation time, which leaves us with an open question for the mechanism of such a glassy behaviour in a deterministic locally interacting system.
description: 27 pages, v2: Minor modifications, To appear in the J. Phys. A special issue "Hydrodynamics of Low-Dimensional Quantum Systems"
Determination of the light curve of the Rosetta target Asteroid (2867) Steins by the OSIRIS cameras onboard Rosetta
Creators: name: Kueppers, M.
name: Mottola, S.
name: Lowry, S. C.
name: A'Hearn, M. F.
name: Barbieri, C.
name: Barucci, M. A.
name: Fornasier, S.
name: Groussin, O.
name: Gutierrez, P.
name: Hviid, S. F.
name: Keller, H. U.
name: Lamy, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context: In 2004 asteroid (2867) Steins has been selected as a flyby target for the Rosetta mission. Determination of its spin period and the orientation of its rotation axis are essential for optimization of the flyby planning. Aim: Measurement of the rotation period and light curve of asteroid (2867) Steins at a phase angle larger than achievable from ground based observations, providing a high quality data set to contribute to the determination of the orientation of the spin axis and of the pole direction. Methods: On March 11, 2006, asteroid (2867) Steins was observed continuously for 24 hours with the scientific camera system OSIRIS onboard Rosetta. The phase angle was 41.7 degrees, larger than the maximum phase angle of 30 degrees when Steins is observed from Earth. A total of 238 images, covering four rotation periods without interruption, were acquired. Results: The light curve of (2867) Steins is double peaked with an amplitude of $\approx$ 0.23 mag. The rotation period is 6.052 $\pm$ 0.007 hours. The continuous observations over four rotation periods exclude the possibility of period ambiguities. There is no indication of deviation from a principal axis rotation state. Assuming a slope parameter of G = 0.15, the absolute visual magnitude of Steins is 13.05 $\pm$ 0.03.
description: 8 pages (incl. online material), 4 figures. Accepted for publication in Astronomy & Astrophysics letters
A practical formula for the radiated angular momentum
Creators: name: Lousto, Carlos O.
name: Zlochower, Yosef
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a simple formula for the radiated angular momentum based on a spin-weighted spherical harmonic decomposition of the Weyl scalar psi_4 representing outgoing radiation in the Kinnersley tetrad. We test our formula by measuring the radiated angular momentum from three simulations of non-spinning equal-mass black-hole binary with orbital angular momentum aligned along the x, y, and z axes respectively. We find that the radiated angular momentum agrees with the differences in the remnant horizon spins and the initial angular momentum for each system.
description: 4 pages, revtex4, Accepted to PRD