cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Critical lumpy black holes in AdS${}_p\times S^q$
Creators: name: Cardona, Biel
name: Figueras, Pau
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we study lumpy black holes with AdS${}_p \times S^q$ asymptotics, where the isometry group coming from the sphere factor is broken down to SO($q$). Depending on the values of $p$ and $q$, these are solutions to a certain Supergravity theory with a particular gauge field. We have considered the values $(p,q) = (5,5)$ and $(p,q) = (4,7)$, corresponding to type IIB supergravity in ten dimensions and eleven-dimensional supergravity respectively. These theories presumably contain an infinite spectrum of families of lumpy black holes, labeled by a harmonic number $\ell$, whose endpoints in solution space merge with another type of black holes with different horizon topology. We have numerically constructed the first four families of lumpy solutions, corresponding to $\ell = 1, 2^+, 2^-$ and $3$. We show that the geometry of the horizon near the merger is well-described by a cone over a triple product of spheres, thus extending Kol's local model to the present asymptotics. Interestingly, the presence of non-trivial fluxes in the internal sphere implies that the cone is no longer Ricci flat. This conical manifold accounts for the geometry and the behavior of the physical quantities of the solutions sufficiently close to the critical point. Additionally, we show that the vacuum expectation values of the dual scalar operators approach their critical values with a power law whose exponents are dictated by the local cone geometry in the bulk.
description: 38 pages + appendices, 19 figures, 6 tables. v2: minor modifications. Updated to match published version
Relationship of the Ālaya-Vijñāna to theories of the unconscious in depth psychology
Creators: name: Hollander, Francesca Jacoba
Publisher: name: University of British Columbia
Year: 2008

description: The álaya-vijñána has been the subject of much scholarly research and has frequently been described as a type of subliminal or unconscious level of mental processing. Although several attempts have been made to make a systematic comparison between the álaya-vijñána of Yogácára Vijñaptimátratá and the psychological unconscious in Depth psychology, there is a tradition of errors exemplified by articles exclusively from the psychoanalytic perspective that ignore the cognitive unconscious. While these comparisons reveal Freud's claim that there are unconscious mental processes is supported by recent work, there is, however, no need to identify concepts of the unconscious with psychoanalysis and part of the purpose of this paper is to separate the unconscious from its Freudian connection. This is not done in the spirit of dismissing or discrediting psychoanalytic theory, it is done in the interest of conceptual clarity. In chapter one I outline the psychoanalytic theory of the unconscious in Depth Psychology. In chapter two I discuss the cognitive unconscious and present empirical evidence from research studies done on unconscious mental processing which supports the claim that there are unconscious mental processes and that these unconscious mental processes are in no way related to Freudian theory of the unconscious. Chapter three compares the psychoanalytic unconscious with the cognitive unconscious on the basis of repression, recoverability of unconscious contents, inaccessibility, and the effect of unconscious influences. Chapter four and five briefly discusses the development of Yogácára Vijñáptimátratá, its founders, main texts, and key Concepts. Chapter six compares álaya-vijñána with the theories of the unconscious in the area of repression, recoverability of unconscious contents, inaccessibility and the effect of unconscious influences. Finally, chapter seven discusses the psychological transformation in álaya-vijñána theory.
Lie Symmetries and Criticality of Semilinear Differential Systems
Creators: name: Bozhkov, Yuri
name: Mitidieri, Enzo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We discuss the notion of criticality of semilinear differential equations and systems, its relations to scaling transformations and the Noether approach to Pokhozhaev's identities. For this purpose we propose a definition for criticality based on the S. Lie symmetry theory. We show that this definition is compatible with the well-known notion of critical exponent by considering various examples. We also review some related recent papers.
description: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
On the isomorphism problem for unit groups of modular group algebras
Creators: name: Konovalov, A.
name: Krivokhata, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Rings and Algebras (math.RA)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 16S34, 20C05

description: Using the computational algebra system GAP (http://www.gap-system.org) and the GAP package LAGUNA (http://www.cs.st-andrews.ac.uk/~alexk/laguna.htm), we checked that all 2-groups of order not greater than 32 are determined by normalized unit groups of their modular group algebras over the field of two elements.
description: 6 pages, accepted in Acta Sci. Math. (Szeged)
Towards a quantum theory of de Sitter space
Creators: name: Banks, T.
name: Fiol, B.
name: Morisse, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe progress towards constructing a quantum theory of de Sitter space in four dimensions. In particular we indicate how both particle states and Schwarzschild de Sitter black holes can arise as excitations in a theory of a finite number of fermionic oscillators. The results about particle states depend on a conjecture about algebras of Grassmann variables, which we state, but do not prove.
description: JHEP3 LaTex - 19 pages
Multicomponent Intervention to Enhance Word Problem-Solving in Chinese Americans with Math Difficulties
Creators: name: Wang, Jing
Publisher: name: University of Illinois at Chicago
Year: 2023

description: Word problems solving has long been emphasized throughout the school curriculum and is a primary focus of standardized high stakes testing. Given the increasing diversity across classrooms in the United States, there is a growing need to implement culturally responsive mathematical interventions for individuals with or at risk for mathematics disabilities. The purpose of this study was to examine the effectiveness of a telehealth-delivered multicomponent intervention package on the mathematical word problem-solving performance of Chinese American English learners (ELs) at risk for mathematics disabilities in home settings. The study utilized a multiple probe across participants design to evaluate the efficacy of the telehealth-delivered multicomponent intervention package. The results demonstrated that the multicomponent intervention, delivered through synchronous instruction, effectively promoted participants’ word problem-solving performance. The findings of this study provided several implications for practice for utilizing the multicomponent intervention package to teach word problems to ELs with mathematics difficulties, and recommendations for future researchers are discussed.
Jackendoff and The Philosophy of Language
Creators: name: Esmaeelpour, Elmira
Publisher: name: Zenodo
Year: 2019
Subjects: درک، معناشناسی مفهومی، فلسفه زبان

description: در این مقاله معنا­شناسی مفهومی را از دیگاه فلسفه زبان که توسط جکنداف معرفی شده است بررسی می­کنیم. معناشناسی مفهومی یک رویکرد ساخت­گرایانه به مطالعه معنایی زبان طبیعی است. هدف آن ارائه ویژگی­هایی از عناصر مفهومی از کلمات و جملاتی است که افراد آن­ها را درک می­کنند. در این دیدگاه به یادگیری زبان کودک و جنبه روان­شناسی زبان توجه بسیار شده است. جکنداف واژگان را به سه قسمت تقسیم می­کند: واج­شناسی، نحو و مفهوم. او ادعا می­کند که یک روش تجزیه­ای برای کشف ساختار مفهومی ضروری است، که در آن مفاهیم به کوچک­ترین عناصرشان تقسیم می­شوند. معناشناسی مفهومی یک مجموعه محدودی از اولویت­های روانی و یک مجموعه محدود از اصول ترکیب ذهنی است که بر تعامل آن­ها تأثیر می­گذارد. هدف اساسی معناشناسی مفهومی این است که چرایی و چگونگی درک گفتار توسط انسان را توضیح دهد. براساس این هدف، دو تعهد نظری به وجود می­آید. تعهد اول تعهد ذهنی/ روانشناختی - و عصب­شناختی است و تعهد دوم تعهد "کاربردشناسی" و "دانش جهانی" است. در این نظریه عبارات زبانی از طریق معنای آن­ها انتقال می­یابند. معنای یک واژه یا جمله یک عنصر آزاد در جهان نیست. در عوض، معنای یک واژه، به عنوان یک ساختار ذهنی ذخیره­شده در ذهن گویشور رمزگذاری می­شود. معنای یک جمله نیز باید به عنوان یک ساختار ذهنی در نظر گرفته شود که در ذهن سخن­گویان به صورت نظام­مند از معانی اجزای آن ساخته شده است. در این مفهوم، معنا باید همیشه به کاربرد زبان نسبت داده شود.
Inverted Oscillator
Creators: name: Yuce, C.
name: Kilic, A.
name: Coruh, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The inverted harmonic oscillator problem is investigated quantum mechanically. The exact wave function for the confined inverted oscillator is obtained and it is shown that the associated energy eigenvalues are discrete and it is given as a linear function of the quantum number $n$.
description: 4 pages
The effects of context on speech understanding in noise
Creators: name: Howarth, Tanis Marie
Publisher: name: University of British Columbia
Year: 2008

description: Twelve normal-hearing subjects (22 to 29 years) listened to passages of text in the presence of a twelve-speaker babble background noise. The passages were presented in a line-by-line fashion and subjects were asked to repeat each line as accurately as they could. The present study investigated whether three text types differing in macrostructure (narrative, descriptive, and procedural) would differentially effect how speech is perceived in the presence of background noise. Also, the number and types of errors (deletions, additions, substitutions, and exchanges) that occurred as signal-to-noise conditions decreased from 0dB to -12dB were examined. The degree to which a subject's response matched the target at three linguistic levels (auditory, syntactic, and semantic) was analyzed as either a partial match, total match, or no match at all. It was found that when listening to narratives, significantly fewer errors were made than when listening to descriptions. It was also shown that if only the number of auditory errors are counted and used as a means by which to assess the listening abilities of an individual in noise, then the robustness of syntactic and semantic information is not appreciated.
Coherent-scatterer enhancement and Klein-tunneling suppression by potential barriers in gapped graphene with chirality-time-reversal symmetry
Creators: name: Anwar, Farhana
name: Iurov, Andrii
name: Huang, Danhong
name: Gumbs, Godfrey
name: Sharma, Ashwani
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have utilized the finite-difference approach to explore electron-tunneling properties in gapped graphene through various electrostatic-potential barriers changing from Gaussian to a triangular envelope function in comparison with a square potential barrier. Transmission coefficient is calculated numerically for each case and applied to corresponding tunneling conductance. It is well known that Klein tunneling in graphene will be greatly reduced in a gapped graphene. Our results further demonstrate that such a decrease of transmission can be significantly enhanced for spatially-modulated potential barriers. Moreover, we investigate the effect from a bias field applied to those barrier profiles, from which we show that it enables the control of electron flow under normal incidence. Meanwhile, the suppression of Klein tunneling is found more severe for a non-square barrier and exhibits a strong dependence on bias-field polarity for all kinds of barriers. Finally, roles of a point impurity on electron transmission and conductance are analyzed with a sharp peak appearing in electron conductance as the impurity atom is placed at the middle of a square barrier. For narrow triangular and Gaussian barriers, however, the conductance peaks become significantly broadened, associated with an enhancement in tunneling conductance.
Jesús Enrique Ramos Chávez: Tipos de ondas y movimiento ondulatorio
Creators: name: Ramos Chavez, Jesus Enrique
Publisher: name: Zenodo
Year: 2024
Subjects: movimiento
ondas
modulo de young
fisica
movimiento ondulatorio
Jesus Enrique Ramos Chávez
Ciencia
Ondas mecanicas
Ondas electromagnéticas

description: El comportamiento de las ondas es un fenómeno fascinante que invita a la reflexión, ya que se manifiesta de maneras sorprendentes. Un aspecto notable es que la velocidad de propagación de una onda varía según el medio a través del cual se transmite. Por ejemplo, la velocidad de propagación de una onda en el hierro es diferente de la que presenta en el cobre. 

En el ámbito de las ondas sonoras, podemos observar este fenómeno en el contexto del efecto Doppler, que describe cómo la frecuencia de un sonido varía en función del movimiento relativo entre la fuente sonora y el receptor. Este tipo de situaciones resalta la complejidad de los temas relacionados con la física, que no solo son intrigantes, sino que también nos invitan a cuestionar nuestro nivel de conocimiento sobre el comportamiento de los fenómenos que nos rodean.

En este escrito, hemos explorado el área de las ondas, pero surgen otras preguntas igualmente intrigantes. Por ejemplo, ¿cómo funciona un televisor? ¿Qué es la materia oscura? ¿Cómo opera un acelerador de partículas? Estas cuestiones son de gran interés y nos motivan a continuar nuestra búsqueda de conocimiento en el vasto campo de la ciencia.
Nematic textures in spherical shells
Creators: name: Vitelli, Vincenzo
name: Nelson, David R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The equilibrium texture of nematic shells is studied as a function of their thickness. For ultrathin shells the ground state has four short 1/2 disclination lines but, as the thickness of the film increases, a three dimensional escaped configuration composed of two pairs of half-hedgehogs becomes energetically favorable. We derive an exact solution for the nematic ground state in the one Frank constant approximation and study the stability of the corresponding texture against thermal fluctuations.
description: 19 pages, 11 figures
Whole Earth Telescope observations of the hot helium atmosphere pulsating white dwarf EC 20058-5234
Creators: name: WET Collaboration
name: Sullivan, D. J.
name: Metcalfe, T. S.
name: O'Donoghue, D.
name: Winget, D. E.
name: Kilkenny, D.
name: van Wyk, F.
name: Kanaan, A.
name: Kepler, S. O.
name: Nitta, A.
name: Kawaler, S. D.
name: Montgomery, M. H.
name: Nather, R. E.
name: O'Brien, M. S.
name: Bischoff-Kim, A.
name: Wood, M.
name: Jiang, X. J.
name: Leibowitz, E. M.
name: Ibbetson, P.
name: Zola, S.
name: Krzesinski, J.
name: Pajdosz, G.
name: Vauclair, G.
name: Dolez, N.
name: Chevreton, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the analysis of a total of 177h of high-quality optical time-series photometry of the helium atmosphere pulsating white dwarf (DBV) EC 20058-5234. The bulk of the observations (135h) were obtained during a WET campaign (XCOV15) in July 1997 that featured coordinated observing from 4 southern observatory sites over an 8-day period. The remaining data (42h) were obtained in June 2004 at Mt John Observatory in NZ over a one-week observing period. This work significantly extends the discovery observations of this low-amplitude (few percent) pulsator by increasing the number of detected frequencies from 8 to 18, and employs a simulation procedure to confirm the reality of these frequencies to a high level of significance (1 in 1000). The nature of the observed pulsation spectrum precludes identification of unique pulsation mode properties using any clearly discernable trends. However, we have used a global modelling procedure employing genetic algorithm techniques to identify the n, l values of 8 pulsation modes, and thereby obtain asteroseismic measurements of several model parameters, including the stellar mass (0.55 M_sun) and T_eff (~28200 K). These values are consistent with those derived from published spectral fitting: T_eff ~ 28400 K and log g ~ 7.86. We also present persuasive evidence from apparent rotational mode splitting for two of the modes that indicates this compact object is a relatively rapid rotator with a period of 2h. In direct analogy with the corresponding properties of the hydrogen (DAV) atmosphere pulsators, the stable low-amplitude pulsation behaviour of EC 20058 is entirely consistent with its inferred effective temperature, which indicates it is close to the blue edge of the DBV instability strip. (abridged)
description: 19 pages, 8 figures, 5 tables, MNRAS accepted
Axion Cloud Decay due to the Axion-photon Conversion with Background Magnetic Fields
Creators: name: Yoo, Chul-Moon
name: Naruko, Atsushi
name: Sakurai, Yusuke
name: Takahashi, Keitaro
name: Takamori, Yohsuke
name: Yamauchi, Daisuke
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider an axion cloud around a black hole with background magnetic fields. We calculate the decay rate of the axion cloud due to the axion-photon conversion associated with the axion-photon coupling. For simplicity, we consider the situation where the axion configuration is dominated by a solution for the eigenvalue equation equivalent to that for the Hydrogen atom, and the coupling term can be evaluated by a successive perturbation method. For the monopole background, we find the decay rate of the axion cloud is given by $\sim q^2κ^2(GM)^5μ^8$, where $μ$, $M$, $G$, $κ$ and $q$ are the axion mass, black hole mass, gravitational constant, coupling constant of the axion-photon coupling and monopole charge, respectively. For the uniform background magnetic field, we obtain the decay rate of the axion cloud $\sim B_0^2κ^2 (GM)^7μ^6$, where $B_0$ is the magnetic field strength. Applying our formula to the central black hole in our galaxy, we find that the value of the decay rate for the case of the uniform magnetic field is comparable to the growth rate of the superradiant instability with $κ\sim 10^{-12}{\rm GeV^{-1}}$, $B_0\sim 10^3{\rm G}$ and $μ\sim 10^{-18}{\rm eV}$. The ratio is $10^5$ times larger for the monopole magnetic field with the same values of the parameters.
description: 16 pages
Christianity, environmental planning, and Canada’s green plan
Creators: name: Kemppi, Thomas Allan
Publisher: name: University of British Columbia
Year: 2016

description: This thesis argues that Christian doctrine does not condone environmental destruction (as many believe); rather, Christian doctrine promotes care for the Earth and supports a number of norms which are consistent with the requirements of sustainable development and useful for planning for sustainable development. Discussion begins with an explanation of the importance of norms and beliefs in planning, and proceeds to outline common criticisms of Christian norms and beliefs respecting the environment. These criticisms are considered valid to the extent that blame is placed on destructive practices which often characterize ill-formed social expressions of Christian norms and beliefs; however, these criticisms may be groundless in terms of a good understanding of Christian doctrine. This point provides a basis for examining Christian doctrine more closely, to see whether or not it condones destruction of the ecosphere. Christian doctrine, logical argument, and a review of relevant literature are used to respond to the above mentioned criticisms. Analysis shows that Christian doctrine provides a basis for caring for the Earth and that one should not dismiss Christianity because of misguided attitudes and actions of professed Christians. Nine ecological norms are derived from Christian doctrine. These norms are shown to be consistent with the requirements of sustainable development, and the findings of non-Christian scholars. Usefulness of these norms is demonstrated through a case-study evaluation of the ecological sustainability of Canada's Green Plan (GP). Applying Christian norms to the GP shows that the GP endorses some important environmental initiatives but is rooted in norms and beliefs which contradict each other and are inconsistent with the requirements of sustainable development. Christian norms therefore prove to be helpful in pointing out weaknesses in the GP. Coupled with the facts that Christian theology does not promote environmental destruction, and that Christian norms enjoy the support of non-Christian scholars, the conclusion is that Christianity has been overly criticized respecting the environment and that Christian norms can and should be used to plan for sustainable development.
การศึกษาผลกระทบของกระบวนการผลิตเชื้อเพลิงชีวภาพที่มีต่อ สภาพภูมิอากาศ การใช้ที่ดิน พลังงาน และน้ำ ของประเทศไทย
Creators: name: บัญชา  วัฒนะ
name: ยงยุทธ  ชนบดีเฉลิมรุ่ง
name: สุพรรณนิกา  วัฒนะ
name: ประพิธาริ์  ธนารักษ์
Publisher: name: คณะวิศวกรรมศาสตร์ มหาวิทยาลัยนเรศวร
Year: 2556
Subjects: Biofuels,Climate,Land Use,Water Footprint,Life Cycle Assessment

description: 2, 8, วิศวกรรมสาร มหาวิทยาลัยนเรศวร
โครงสร้างปัจจัยสำหรับคัดเลือกระบบจัดซื้อจัดจ้างที่มีอิทธิพลต่อผลสัมฤทธิ์ของโครงการก่อสร้าง โดยการวิเคราะห์แบบจำลองสมการโครงสร้าง
Creators: name: ธีรวัฒน์ พรมมายะกุล
name: จักรพงษ์ พงษ์เพ็ง
Publisher: name: คณะวิศวกรรมศาสตร์ มหาวิทยาลัยนเรศวร
Year: 2556
Subjects: Factor,Procurement System,Construction Project,Structural Equation Modeling,Performance.

description: 2, 8, วิศวกรรมสาร มหาวิทยาลัยนเรศวร
A variationist description of vowels in Assamese
Creators: name: Nath, Saurabh Kumar
Publisher: name: Zenodo
Year: 2022
Subjects: Assamese vowels
Sociophonetics
Language variation
Acoustic phonetics
Multilingualism

description: The vowel system of Assamese has been discussed and commented upon in many studies, reports, surveys, and grammars (see Brown 1848, Grierson 1903, Kakati 1941, Goswami 1982, Baruah 1992, Sarmah & Dihingia 2017, among others). The existing findings on the vowel system do not appear to be conclusive and are rather contradictory to each other in many ways. Although the vowels in these studies appear to vary, in terms of both quantity and quality as well as in space and time, no variation attested in the system has been addressed so far. Furthermore, the synchronic accounts of variability in the vowel system have not only complicated the analysis of any single dialect region but have also added puzzles to the understanding of synchronic variation within a given dialect and changes or ongoing changes across dialects. These studies work with two language systems- the standard and the dialects, and by comparing the two, they postulate the deviations as changes (see Dihingia et al. 2017 on vowels and Sarma 2009 on consonants). Such findings are problematic not only because they rely solely on the synchronic data, but also because of the assumption that the standard colloquial is the earlier form. The present study discusses some of these aspects of the Assamese vowels as presented in the existing literature and comments on how the existing studies have complicated the understanding of the vowel system over the years. The study further discusses how the speech community-based approach, in conformity with the existing knowledge on language variation and change, can shed light on the nature and dynamics of Assamese vowels, and the variation attached to the system by drawing data from a single family consisting of three different generations.
Synthesis of Adsorbent Materials from Vetiver Grass for Wastewater Treatment
Creators: name: Wilawan Khanitchaidecha
name: Thao, Le Thi Song
name: Nattikran Yuangpho
name: Auppatham Nakaruk
Publisher: name: คณะวิศวกรรมศาสตร์ มหาวิทยาลัยนเรศวร
Year: 2014
Subjects: Vetiver Grass,Activated Carbon,Adsorbent Materials,Dye Wastewater Treatment

description: 1, 9, NARESUAN UNIVERSITY ENGINEERING JOURNAL
Photocatalytic and antibacterial properties of TiO2 powder doped with Fe
Creators: name: Weerachai Sangchay
name: Pichet Chantawee
name: Weerachai Madtharak
name: Aurasa Namesai
name: Torpee, Salwa
Publisher: name: คณะวิศวกรรมศาสตร์ มหาวิทยาลัยนเรศวร
Year: 2014
Subjects: Fe doped TiO2,Sol-gel,Photocatalytic activity,Antibacterial activity

description: 1, 9, NARESUAN UNIVERSITY ENGINEERING JOURNAL
Castil-Blaze, De L’Opéra en France, and the Feuilletons of the Journal des Débats (1820-1832)
Creators: name: Gíslason, Donald Garth
Publisher: name: University of British Columbia
Year: 2008

description: François-Henri-Joseph Blaze (1784-1857), who published under the pseudonym Castil- Blaze, was an important figure in French musical life during the period of the Bourbon Restoration (1815-1830). In his historical monographs, he was the first writer to address the wider French public to explain to them the history and practical functioning of their major musical institutions. As France's first professional music critic and the author of some 340 articles in the prestigious Journal des débats between 1820 and 1832, he created a place for literate writing about music on the front pages of the most respected daily newspaper in France, providing the French public for the first time with a regular account of Parisian musical activities written from a musician's point of view. The present study examines his views on opera as expressed in his articles in the Journal des débats and in the work which launched his career. De J'Opéra en France (1820). Chapter 1 reviews the centrality of opera in French musical life from the seventeenth to nineteenth centuries, concentrating upon the literary outlook which conditioned its development and upon the parallel development of French music criticism during this period. Discussed as well are the founding of the Journal des débats at the end of the eighteenth century and the work of its first important critic, Julien-Louis Geoffroy, at the beginning of the nineteenth. Chapter 2 describes the early career of Castil-Blaze before his arrival in Paris and analyses both the new direction which De l'Opéra en France represented in French writing about music and the contrast evident between Castil-Blaze and his predecessor Geoffroy. Chapter 3 outlines Castil-Blaze's views on the nature of music criticism as a specialty discipline and details the ways in which his own work attempted to put these views into practice. Chapter 4 discusses the crucial importance of the libretto, in Castil-Blaze's view, to the ultimate effectiveness of opera, both at the large-scale level of its dramatic structure and at the small-scale level of its verse prosody. Chapter 5 deals with the issues affecting the opera composer's score: the theoretical basis of Castil-Blaze's musical aesthetics, his practical concerns with the traditional French system for distributing voice roles, and his opinions on text-music setting and the nature of dramatic expression in music. Chapter 6 deals with Castil-Blaze's expectations of the opera singer, both as a vehicle for the composer's written intentions and as an important contributor of dramatic expression and improvised ornamentation in performance. A concluding chapter outlines unifying themes in his writings as a whole and discusses their impact upon later developments in French opera.
การออกแบบและสร้างตัวดูดซับการสั่นสะเทือนแบบปรับค่าได้ : Design and Development of Active Vibration Absorber
Creators: name: สุรัตน์ ปัญญาแก้ว
Publisher: name: คณะวิศวกรรมศาสตร์ มหาวิทยาลัยนเรศวร
Year: 2557
Subjects: ตัวดูดซับการสั่นสะเทือนแบบปรับค่าได้,ระบบควบคุมแบบป้อนกลับ,มอดูลัสเชิงพลวัต

description: 1, 9, วิศวกรรมสาร มหาวิทยาลัยนเรศวร
Feedback controlled electromigration in four-terminal nano-junctions
Creators: name: Wu, Zheng-Ming
name: Steinacher, Michael
name: Huber, Roman
name: Calame, Michel
name: van der Molen, Sense Jan
name: Schonenberger, Christian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have developed a fast, yet highly reproducible method to fabricate metallic electrodes with nanometer separation using electromigration (EM). We employ four-terminal instead of two-terminal devices in combination with an analog feedback to maintain the voltage $U$ over the junction constant. After the initialization phase ($U < 0.2V), during which the temperature $T$ increases by 80-150 degs C, EM sets in shrinking the wire locally. This quickly leads to a transition from the diffusive to a quasi-ballistic regime ($0.2V < U < 0.6V). At the end of this second regime, a gap forms (U > 0.6V). Remarkably, controlled electromigration is still possible in the quasi-ballistic regime.
Computer Assisted Language Testing in English for Specific Purposes
Creators: name: Γουναρά, Αναστασία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Hλεκτρονικά γλωσσικά τεστ
Aγγλικά για ειδικούς σκοπούς
Aξιολόγηση
Computer assisted language testing
English for specific purposes
Assessment

description: The main issue of the present thesis is concentrated upon the computer assisted language testing, the technology’s affordances in testing and assessment in second language acquisition and especially in language for specific purposes. In particular, there will be a thorough description of technology’s emergence in the field of testing and assessment in contrast to paper based testing as well as the qualities that are covered in each case. Furthermore, as not all tests are the same, the main kinds of tests will be analyzed, especially those in computerized format. Finally, there will be a description based on certain criteria of the most known computer based tests globally for specific purposes such as TOEFL iBT®, GMAT and GRE.
description: Ο κύριο θέμα της εργασίας επικεντρώνεται στη χρήση της τεχνολογίας στη γλωσσική αξιολόγηση μέσω των ηλεκτρονικών τεστ καθώς και τα τεχνολογικά εργαλεία που χρησιμοποιούνται στην αξιολόγηση για την απόκτηση της δεύτερης ξένης γλώσσας και ειδικά στα τεστ για ειδικούς σκοπούς. Πιο συγκεκριμένα, έμφαση θα δοθεί στην εμφάνιση των νέων τεχνολογιών στο τομέα των τεστ και της αξιολόγησης συγκριτικά με τα γραπτά τεστ καθώς και με τις γλωσσικές ιδιότητες οι οποίες καλύπτονται σε κάθε περίπτωση. Επιπλέον, ιδιαίτερη σημασία θα δοθεί στην κατηγοριοποίηση και περιγραφή των διαφορετικών ειδών τεστ βάσει συγκεκριμένων κριτηρίων και ειδικά για τα τεστ τα οποία έχουν δημιουργηθεί σε ηλεκτρονική μορφή. Τέλος, θα υπάρξει μια αναλυτική και συγκριτική περιγραφή με μερικά από τα γνωστά τεστ για ειδικούς σκοπούς παγκοσμίως όπως το TOEFL iBT®, GMAT και GRE σύμφωνα με μια λίστα κριτηρίων.
Reentrance of the Disordered Phase in the Antiferromagnetic Ising Model on a Square Lattice with Longitudinal and Transverse Magnetic Fields
Creators: name: Kaneko, Ryui
name: Douda, Yoshihide
name: Goto, Shimpei
name: Danshita, Ippei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Motivated by recent experiments with Rydberg atoms in an optical tweezer array, we accurately map out the ground-state phase diagram of the antiferromagnetic Ising model on a square lattice with longitudinal and transverse magnetic fields using the quantum Monte Carlo method. For a small but nonzero transverse field, the transition longitudinal field is found to remain nearly constant. By scrutinizing the phase diagram, we uncover a narrow region where the system exhibits reentrant transitions between the disordered and antiferromagnetic phases with increasing transverse field. Our phase diagram provides a useful benchmark for quantum simulation of a Rydberg atom system.
description: 4 pages, 3 figures
Purifying Deep Boltzmann Machines for Thermal Quantum States
Creators: name: Nomura, Yusuke
name: Yoshioka, Nobuyuki
name: Nori, Franco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop two cutting-edge approaches to construct deep neural networks representing the purified finite-temperature states of quantum many-body systems. Both methods commonly aim to represent the Gibbs state by a highly expressive neural-network wave function, exemplifying the idea of purification. The first method is an entirely deterministic approach to generate deep Boltzmann machines representing the purified Gibbs state exactly. This strongly assures the remarkable flexibility of the ansatz which can fully exploit the quantum-to-classical mapping. The second method employs stochastic sampling to optimize the network parameters such that the imaginary time evolution is well approximated within the expressibility of neural networks. Numerical demonstrations for transverse-field Ising models and Heisenberg models show that our methods are powerful enough to investigate the finite-temperature properties of strongly correlated quantum many-body systems, even when the problematic effect of frustration is present.
description: 7 + 5 pages, 5 figures
An approximate global solution of Einstein's equations for a finite body
Creators: name: Cabezas, J. A.
name: Martin-Martin, J.
name: Molina, A.
name: Ruiz, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We obtain an approximate global stationary and axisymmetric solution of Einstein's equations which can be considered as a simple star model: a self-gravitating perfect fluid ball with constant mass density rotating in rigid motion. Using the post-Minkowskian formalism (weak-field approximation) and considering rotation as a perturbation (slow-rotation approximation), we find approximate interior and exterior (asymptotically flat) solutions to this problem in harmonic and quo-harmonic coordinates. In both cases, interior and exterior solutions are matched, in the sense of Lichnerowicz, on the surface of zero pressure to obtain a global solution. The resulting metric depends on three arbitrary constants: mass density, rotational velocity and the star radius at the non-rotation limit. The mass, angular momentum, quadrupole moment and other constants of the exterior metric are determined by these three parameters. It is easy to show that this type of fluid cannot be a source of the Kerr metric
description: 32 pages, no figures. Submitted to GRG
Dubai Visa For Moroccan Citizens
Creators: name: Center, Dubai Visa
Publisher: name: Zenodo
Year: 2024

description: Dubai Visa Center is dedicated to assisting securing their visas for the dubai visa for moroccan citizens. We offer a range of options, including the 14 Days Dubai Business Visa, 48 Hours Transit Visa, and 96 Hours Dubai Transit Visa. Our team ensures a smooth and efficient process, guiding you through visa requirements and providing transparent details on Dubai visa fees for Moroccan citizens. Whether you're traveling for business, a short stopover, or a leisure trip, we simplify the process, saving you time and effort. Trust Dubai Visa Center for expert support and fast processing to make your Dubai plans a reality!
D7.4: Agricultural Insurance Enablers – Advisory Board report
Creators: name: Petalios, Dimitrios
Publisher: name: Zenodo
Year: 2019

description: The current Deliverable 7.4: “Agricultural Insurance Enablers” Advisory Board report, provides an overview of the establishment of the BEACON Advisory Board (AB) and presents the most important points discussed and feedback received during the 1st BEACON Agricultural Insurance (AgI) Enablers - individual members - meeting (experts’ recommendations, partners’ comments, important issues raised, etc.). It is the first of the four relevant deliverables that will subsequently be developed within the project life span.
 The document is structured in 5 chapters. Chapter 1 presents an overview of the role of the AgI Enablers in the project, while Chapter 2 describes the methodology followed for the selection of the AgI Enablers members. The current members of the BEACON AgI Enablers group are presented in Chapter 3. Detailed minutes of the meetings held during this period (Month 4 to month 5 of the project) are presented in Chapter 4. An analysis of the recommendations of the AgI Enablers members on the issues discussed regarding the BEACON project is also provided. The document concludes with the next steps planned for the further development of the AgI Enablers group, summarized in Chapter 5.
Mid-Infrared Source Multiplicity within Hot Molecular Cores traced by Methanol Masers
Creators: name: Longmore, S. N.
name: Burton, M. G.
name: Minier, V.
name: Walsh, A. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present high resolution, mid-infrared images toward three hot molecular cores signposted by methanol maser emission; G173.49+2.42 (S231, S233IR), G188.95+0.89 (S252, AFGL-5180) and G192.60-0.05 (S255IR). Each of the cores was targeted with Michelle on Gemini North using 5 filters from 7.9 to 18.5 microns. We find each contains both large regions of extended emission and multiple, luminous point sources which, from their extremely red colours (F[18.5]/F[7.9] >= 3), appear to be embedded young stellar objects. The closest angular separations of the point sources in the three regions are 0.79, 1.00 and 3.33 arcseconds corresponding to linear separations of 1,700, 1,800 and 6,000AU respectively. The methanol maser emission is found closest to the brightest MIR point source (within the assumed 1 arcsecond pointing accuracy). Mass and luminosity estimates for the sources range from 3-22 Msol and 50-40,000 Lsol. Assuming the MIR sources are embedded objects and the observed gas mass provides the bulk of the reservoir from which the stars formed, it is difficult to generate the observed distributions for the most massive cluster members from the gas in the cores using a standard form of the IMF.
description: 6 pages, 1 figure
The Detectability of Kiloparsec Scale Dual AGNs: The Impact of Galactic Structure and Black Hole Orbital Properties
Creators: name: Li, Kunyang
name: Ballantyne, David R.
name: Bogdanović, Tamara
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Observational searches for dual active galactic nuclei (dAGNs) at kiloparsec separations are crucial for understanding the role of galaxy mergers in the evolution of galaxies. In addition, kpc-scale dAGNs may serve as the parent population of merging massive black hole (MBH) binaries, an important source of gravitational waves. We use a semi-analytical model to describe the orbital evolution of unequal mass MBH pairs under the influence of stellar and gaseous dynamical friction in post-merger galaxies. We quantify how the detectability of approximately 40,000 kpc-scale dAGNs depends on the structure of their host galaxies and the orbital properties of the MBH pair. Our models indicate that kpc-scale dAGNs are most likely to be detected in gas-rich post-merger galaxies with smaller stellar bulges and relatively massive, rapidly rotating gas disks. The detectability is also increased in systems with MBHs of comparable masses following low eccentricity prograde orbits. In contrast, dAGNs with retrograde, low eccentricity orbits are some of the least detectable systems among our models. The dAGNs in models in which the accreting MBHs are allowed to exhibit radiative feedback are characterized by a significantly lower overall detectability. The suppression in detectability is most pronounced in gas-rich merger remnant galaxies, where radiation feedback is more likely to arise. If so, then large, relatively gas poor galaxies may be the best candidates for detecting dAGNs.
description: Accepted to ApJ, 16 pages, 13 figures
Weighted norm inequalities for fractional operators]
Creators: name: Auscher, Pascal
name: Martell, José Maria
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42B25, 35J15

description: We prove weighted norm inequalities for fractional powers of elliptic operators together with their commutators with BMO functions, encompassing what is known for the classical Riesz potentials and elliptic operators with Gaussian domination by the classical heat operator. The method relies upon a good-$λ$ method that does not use any size or smoothness estimates for the kernels.
description: accepted in Indiana University Mathematicla Journal. A thorough reorganisation has been done on suggestions from the referee
Mobile App Development Dubai
Creators: name: Vidya Ortez
Publisher: name: Zenodo
Year: 2020
Subjects: mobile van sales application dubai
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Energetic Electron Distribution of the Coronal Acceleration Region: First results from Joint Microwave and Hard X-ray Imaging Spectroscopy
Creators: name: Chen, Bin
name: Battaglia, Marina
name: Krucker, Säm
name: Reeves, Katharine K.
name: Glesener, Lindsay
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Nonthermal sources located above bright flare arcades, referred to as the "above-the-loop-top" sources, have been often suggested as the primary electron acceleration site in major solar flares. The X8.2 limb flare on 2017 September 10 features such an above-the-loop-top source, which was observed in both microwaves and hard X-rays (HXRs) by the Expanded Owens Valley Solar Array (EOVSA) and the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI), respectively. By combining the microwave and HXR imaging spectroscopy observations with multi-filter extreme ultraviolet and soft X-ray imaging data, we derive the energetic electron distribution of this source over a broad energy range from $$6.0. In addition, temporally resolved analysis suggests that the electron distribution above the break energy rapidly hardens with the spectral index decreasing from $>$20 to $\sim$6.0 within 20 s, or less than $\sim$10 Alfvén crossing times in the source. These results provide strong support for the above-the-loop-top source as the primary site where an on-going bulk acceleration of energetic electrons is taking place very early in the flare energy release.
description: 12 pages, 5 figures, accepted for publication in The Astrophysical Journal Letters
Non-Markovian Levy diffusion in nonhomogeneous media
Creators: name: Srokowski, T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the diffusion equation with a position-dependent, power-law diffusion coefficient. The equation possesses the Riesz-Weyl fractional operator and includes a memory kernel. It is solved in the diffusion limit of small wave numbers. Two kernels are considered in detail: the exponential kernel, for which the problem resolves itself to the telegrapher's equation, and the power-law one. The resulting distributions have the form of the Lévy process for any kernel. The renormalized fractional moment is introduced to compare different cases with respect to the diffusion properties of the system.
description: 7 pages, 2 figures
Linear anisotropies in dispersion-measure-based cosmological observables
Creators: name: Alonso, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We derive all contributions to the dispersion measure (DM) of electromagnetic pulses to linear order in cosmological perturbations, including both density fluctuations and relativistic effects. We then use this result to calculate the power spectrum of DM-based cosmological observables to linear order in perturbations. In particular, we study two cases: maps of the dispersion measure from a set of localized sources (including the effects of source clustering), and fluctuations in the density of DM-selected sources. The impact of most relativistic effects is limited to large angular scales, and is negligible for all practical applications in the context of ongoing and envisaged observational programs targeting fast radio bursts. We compare the leading contributions to DM-space clustering, including the effects of gravitational lensing, and find that the signal is dominated by the fluctuations in the free electron column density, rather than the local source clustering or lensing contributions. To compensate for the disappointing irrelevance of relativistic effects, we re-derive them in terms of the geodesic equation for massive particles in a perturbed Friedmann-Robertson-Walker metric.
description: Just enough pages and figures. Accepted in PRD