cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Distance between exceptional points and diabolic points and its implication for the response strength of non-Hermitian systems
Creators: name: Wiersig, Jan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Exceptional points are non-Hermitian degeneracies in open quantum and wave systems at which not only eigenenergies but also the corresponding eigenstates coalesce. This is in strong contrast to degeneracies known from conservative systems, so-called diabolic points, at which only eigenenergies degenerate. Here we connect these two kinds of degeneracies by introducing the concept of the distance of a given exceptional point in matrix space to the set of diabolic points. We prove that this distance determines an upper bound for the response strength of a non-Hermitian system with this exceptional point. A small distance therefore implies a weak spectral response to perturbations and a weak intensity response to excitations. This finding has profound consequences for physical realizations of exceptional points that rely on perturbing a diabolic point. Moreover, we exploit this concept to analyze the limitations of the spectral response strength in passive systems. A number of optical and photonics systems are investigated to illustrate the theory.
description: 11 pages, 4 figures
Phase-tunable electron transport assisted by odd-frequency Cooper pairs in topological Josephson junctions
Creators: name: Cayao, Jorge
name: Dutta, Paramita
name: Burset, Pablo
name: Black-Schaffer, Annica M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider a finite-size topological Josephson junction formed at the edge of a two-dimensional topological insulator in proximity to conventional superconductors and study the impact of Cooper pair symmetries on the electron transport. We find that, due to the finite junction size, electron transport is highly tunable by the superconducting phase difference $ϕ$ across the junction. At zero frequency and $ϕ=π$, the setup exhibits vanishing local Andreev reflection and perfect normal transmission due to the interplay of finite junction size and formation of topological Andreev bound states in the middle of the junction. We reveal that this striking behavior enables odd-frequency Cooper pairs to become the only type of pairing inside the topological junction that contribute to transport. Our paper thus offers a highly tunable detection scheme for odd-frequency Cooper pairs.
description: 7 pages, 3 figures + 9 pages supplemental material, 2 figures
การพัฒนาสื่อการสอนอิเล็กทรอนิกส์เรื่องสื่อแนะนำการใช้ยาที่มีเทคนิคพิเศษ
Creators: name: กุสาวดี เมลืองนนท์
Publisher: name: ศูนย์สนับสนุนและพัฒนาการเรียนการสอน มหาวิทยาลัยรังสิต
Year: 2014
Subjects: Learning Achievement
Multimedia
Special Technique Products
การใช้ยาที่มีเทคนิคพิเศษ
ผลสัมฤทธิ์ทางการเรียน
สื่ออิเล็กทรอนิกส์

description: วารสารพัฒนาการเรียนการสอน, 8, 1, 81-94
Mature First-time Mothers on Pregnancy, Childbirth and Early Parenting: Informing the Transition to Motherhood
Creators: name: NOTTINGHAM-JONES, JENNIFER SUSAN
Publisher: name: Monash University
Year: 2023
Subjects: Psychosocial aspects of childbirth and perinatal mental health

description: The research aimed to explore mature first-time mothers prenatal expectations and subsequent experience of pregnancy, childbirth and early parenting. Two semi structured interviews were conducted with participants (n=15) aged 35 to 41 years. The study revealed the unique experience, challenges and impact of high-risk pregnancies. The research also demonstrated that a mature age women’s confident presentation may belie greater concerns around coping. Finally, the research highlighted mature age women’s individual strengths and challenges, supporting the need for individualised perinatal support.
ระบบบันทึกการเข้าสอนของอาจารย์และการเข้าเรียนของนักศึกษามหาวิทยาลัย ราชภัฏนครศรีธรรมราช โดยใช้เทคโนโลยีอาร์เอฟไอดี
Creators: name: ธรรมสันต์ สุวรรณ์โรจน์
Publisher: name: ศูนย์สนับสนุนและพัฒนาการเรียนการสอน มหาวิทยาลัยรังสิต
Year: 2014
Subjects: RFID
Tag Card
Teachers and Students Attendance
ระบบบันทึกการเข้าสอนและการเข้าเรียน
อาร์เอฟไอดี
แท็กการ์ด

description: วารสารพัฒนาการเรียนการสอน, 8, 1, 95-113
title:  Quando la difesa è legittima?
Creators: name: Sirena  ,  Eleonora
Publisher: name: Roma TrE-Press
Year: 2019

description: The idea of introducing a “right of defense” that takes the place of self-defense, as proposed by the law distorts the meaning of the cause of justification that has always been subordinated to precise requisites: first of all the need to defend oneself in the absence of which one would no longer speak of defense but of gratuitous and deliberate offense.
description: Democrazia e Sicurezza – 2018, n. 3
Appendix S1 from Intraspecific genetic variation in host vigour, viral load and disease tolerance during Drosophila C virus infection
Creators: name: Kutzer, Megan A. M.
name: Gupta, Vanika
name: Neophytou, Kyriaki
name: Doublet, Vincent
name: Monteith, Katy M.
name: Vale, Pedro F.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine

description: Statistical analyses
title: Wiederholung und Variation im Gespräch des Mittelalters und der Frühen Neuzeit
Creators: name: Roßbach, Nikola
name: Schrott, Angela
name: Gardt, Andreas
name: Miedema, Nine
name: Unzeitig, Monika
name: Brinker-Von Der Heyde, Claudia
name: Volfing, Annette
name: Meierhofer, Christian
name: Kalverkämper, Hartwig
name: Göske, Daniel
name: Gloning, Thomas
name: Holzhacker, Daniel
name: Wüst, Wolfgang
name: Mecklenburg, Michael
name: Bach, Susanne
name: Schul, Susanne
Publisher: name: Universität Kassel
Year: 2023
Subjects: subject: 8.-15. Jahrhundert
subject: Deutsche Literatur
subject: Historische Linguistik
subject: Linguistik und Semiotik
subject: Literaturwissenschaft
subject: Theorien und Fachgebiete
subject: 400
subject: Deutsch
subject: Literatur
subject: Wiederholung
subject: Historische Sprachwissenschaft
subject: Literatursemiotik
subject: Literaturwissenschaft
subject: Geschichte 700-1400

description: Gefördert durch die Fritz Thyssen Stiftung für Wissenschaftsförderung
Reconstruction in Fourier space
Creators: name: Burden, Angela
name: Percival, Will J.
name: Howlett, Cullan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a fast iterative FFT-based reconstruction algorithm that allows for non- parallel redshift-space distortions (RSD). We test our algorithm on both N-body dark matter simulations and mock distributions of galaxies designed to replicate galaxy survey conditions. We compare solenoidal and irrotational components of the redshift distortion and show that an approximation of this distortion leads to a better estimate of the real-space potential (and therefore faster convergence) than ignoring the RSD when estimating the displacement field. Our iterative reconstruction scheme converges in two iterations for the mock samples corresponding to BOSS CMASS DR11 when we start with an approximation of the RSD. The scheme takes six iterations when the initial estimate, measured from the redshift-space overdensity, has no RSD correction. Slower convergence would be expected for surveys covering a larger angle on the sky. We show that this FFT based method provides a better estimate of the real space displacement field than a configuration space method that uses finite difference routines to compute the potential for the same grid resolution. Finally we show that a lognormal transform of the overdensity, used as a proxy for the linear overdensity, is beneficial in estimating the full displacement field from a dense sample of tracers. However the lognormal transform of the overdensity does not perform well when estimating the displacements from sparser simulations with a more realistic galaxy density.
description: 13 pages, 8 figures, Accepted MNRAS, 13th July 2015
E-Governance in India: Definitions, Challenges and Solutions
Creators: name: Kumar, Puneet
name: Kumar, Dharminder
name: Kumar, Narendra
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: The Government of India is transcending from traditional modus operandi of governance towards technological involvement in the process of governance. Currently, the Government of India is in the transition phase and seamlessly unleashing the power of ICT in governance. The government is spending an enormous amount of finances in deployment of e-governance, but, are these efforts are going in the appropriate direction and leads towards intended results? What do the people percept from the concept of e-governance? What is the global perspective about perception of e-governance? What are the major challenges confronting the deployment of e-governance? In this attempt the authors have made an attempt to riposte aforesaid issues. Moreover, the authors have also suggested some plausible suggestions which may help in successful and sustainable deployment of e-governance in India.
title:  Città globali: Zygmunt Bauman e il destino delle metropoli contemporanee
Creators: name: Rossi  ,  Emanuele
Publisher: name: Roma TrE-Press
Year: 2019

description: The topic of cities is not new in the reflections of Zygmunt Bauman. The focus on the metropolis and its continuous transformations is central in many of his writings. If it is true that cities have always been considered places of rapid and increasing change, it is also true that the transformations that urban life has undergone in recent decades have no precedents in the course of history. Having taken this into consideration, the Polish sociologist highlights the complex mechanisms that make our cities and its inhabitants increasingly closed, inhospitable and unable to trust others.
description: Democrazia e Sicurezza – 2018, n. 3
Ro-vibrational excitation of an organic molecule (HCN) in protoplanetary disks
Creators: name: Bruderer, Simon
name: Harsono, Daniel
name: van Dishoeck, Ewine F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: (Abridged) Organic molecules are important constituents of protoplanetary disks. Their ro-vibrational lines observed in the near- and mid-infrared are commonly detected toward T Tauri disks. These lines are the only way to probe the chemistry in the inner few au where terrestrial planets form. To understand this chemistry, accurate molecular abundances have to be determined. This is complicated by excitation effects. Most analyses so far have made the assumption of local thermal equilibrium (LTE). Starting from estimates for the collisional rate coefficients of HCN, non-LTE slab models of the HCN emission were calculated to study the importance of different excitation mechanisms. Using a new radiative transfer model, the HCN emission from a full two-dimensional disk was then modeled to study the effect of the non-LTE excitation, together with the line formation. We ran models tailored to the T Tauri disk AS 205 (N) where HCN lines in both the 3 μm and 14 μm bands have been observed by VLT-CRIRES and the Spitzer Space Telescope. Reproducing the observed 3 μm / 14 μm flux ratios requires very high densities and kinetic temperatures ($n > 10^{14}$ cm$^{-3}$ and $T > 750$ K), if only collisional excitation is accounted for. Radiative pumping can, however, excite the lines easily out to considerable radii $\sim$ 10 au. Consequently, abundances derived from LTE and non-LTE models do not differ by more than a factor of about 3. Models with both a strongly enhanced abundance within $\sim$ 1 au (jump abundance) and constant abundance can reproduce the current observations, but future observations with the MIRI instrument on JWST and METIS on the E-ELT can easily distinguish between the scenarios and test chemical models. Depending on the scenario, ALMA can detect rotational lines within vibrationally excited levels.
description: Accepted for publication in A&A, 20 pages, 18 figures
Residual flavor symmetry breaking in the landscape of modular flavor models
Creators: name: Ishiguro, Keiya
name: Okada, Hiroshi
name: Otsuka, Hajime
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a symmetry breaking of residual flavor symmetries realized at fixed points of the moduli space. In the supersymmetric modular invariant theories, a small departure of the modulus from fixed points is required to realize fermion mass hierarchies and sizable CP-breaking effects. We investigate whether one can dynamically fix the moduli values in the vicinity of the fixed points in the context of Type IIB string theory. It is found that the string landscape prefers $|δτ| \simeq 10^{-5}$ for the deviation of the complex structure modulus from all fixed points and the CP-breaking vacuum is statistically favored. To illustrate phenomenological implications of distributions of moduli values around fixed points, we analyze the lepton sector on a concrete $A_4$ modular flavor model.
description: 31 pages, 18 figures, v2: published version
Supplementary Figures from Intraspecific genetic variation in host vigour, viral load and disease tolerance during Drosophila C virus infection
Creators: name: Kutzer, Megan A. M.
name: Gupta, Vanika
name: Neophytou, Kyriaki
name: Doublet, Vincent
name: Monteith, Katy M.
name: Vale, Pedro F.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine

description: Supplementary Figures S1-S11
Supplementary Tables from Intraspecific genetic variation in host vigour, viral load and disease tolerance during Drosophila C virus infection
Creators: name: Kutzer, Megan A. M.
name: Gupta, Vanika
name: Neophytou, Kyriaki
name: Doublet, Vincent
name: Monteith, Katy M.
name: Vale, Pedro F.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine

description: qPCR primers, model parameter estimates
Analisi botanica e compositiva di un dipinto di natura morta seicentesco e ipotesi attributiva all’ambiente artistico napoletano.
Creators: name: Zanotti, Anna Letizia
name: Iacoviello, Antonella
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2022
Subjects: BIO/02 Botanica sistematica
L-ART/02 Storia dell'arte moderna

description: Un dipinto di natura morta della prima metà del Seicento, appartenente alla Fondazione Zani, di autore ignoto, è già stato oggetto di uno studio dettagliato da parte degli autori sulle specie botaniche. In questo contributo si pone l'attenzione in particolare su alcune specie del dipinto di interesse storico-artistico o rilevanti ai fini dell’attribuzione. La presenza di alcune specie raramente raffigurate, come Hyacinthus orientalis "caule folioso" e Phalaroides arundinacea, presenti in quadri di Giacomo Recco, fanno ipotizzare l'attribuzione del dipinto all'ambiente artistico napoletano ed in particolare all'ambito di Giacomo Recco. Ipotesi che pare confermata anche dalla presenza della rara Primula palinuri e dalla presenza sul mercato antiquario di un'opera di composizione molto simile attribuita al figlio Giuseppe Recco.
Similarity between positronium-atom and electron-atom scattering
Creators: name: Fabrikant, I. I.
name: Gribakin, G. F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We employ the impulse approximation for description of positronium-atom scattering. Our analysis and calculations of Ps-Kr and Ps-Ar collisions provide theoretical explanation of the similarity between the cross sections for positronium scattering and electron scattering for a range of atomic and molecular targets observed by S. J. Brawley et al. [Science 330, 789 (2010)].
description: 10 pages, 3 figures
CONSOLE Project - Deliverable 3.2 - "Farmers and stakeholders opinions on implementation of suggested contract solutions based on survey results"
Creators: name: D'Alberto, Riccardo
name: Raggi, Meri
name: Viaggi, Davide
name: Hamunen, Katri
name: Tarvainen, Oili
name: Haltia, Emmi
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2022
Subjects: AGR/01 Economia ed estimo rurale
SECS-S/01 Statistica

description: The Deliverable D3.2 is organised as follows: after the introductory summary of the CONSOLE Project tasks which are related to the present document (section 1), two distinct sections present and discuss the results from the land managers survey (section 2) and the stakeholders survey (section 4). Both these sections present the data collection procedures that have been adopted, by showing and discussing the results from the whole sample of respondents as well as the relevant insights from specific groups, also presenting few insights from the country-specific case studies (sub-section 2.4). The discussion of the results related to the acceptability of the contract solutions by the land managers and forest holders is structured in sub-section 2.5. Section 3 presents the additional work done by each partner in relation to Task 3.2 objectives, beyond the common questionnaire for land managers and forest holders and its related analysis (e.g., the Choice Experiments conducted by some partners and/or the additional questions targeting the peculiarities of the national case studies). Section 5 hosts the document references. Annexes related to both the land managers survey and the stakeholders one are attached at the end of the present document.
Non-linear clustering during the BEC dark matter phase transition
Creators: name: de Freitas, Rodolfo C.
name: Velten, Hermano
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Spherical collapse of the Bose-Einstein Condensate (BEC) dark matter model is studied in the Thomas Fermi approximation. The evolution of the overdensity of the collapsed region and its expansion rate are calculated for two scenarios. We consider the case of a sharp phase transition (which happens when the critical temperature is reached) from the normal dark matter state to the condensate one and the case of a smooth first order phase transition where there is a continuous conversion of "normal" dark matter to the BEC phase. We present numerical results for the physics of the collapse for a wide range of the model's space parameter, i.e. the mass of the scalar particle $m_χ$ and the scattering length $l_s$. We show the dependence of the transition redshift on $m_χ$ and $l_s$. Since small scales collapse earlier and eventually before the BEC phase transition the evolution of collapsing halos in this limit is indeed the same in both the CDM and the BEC models. Differences are expected to appear only on the largest astrophysical scales. However, we argue that the BEC model is almost indistinguishable from the usual dark matter scenario concerning the evolution of nonlinear perturbations above typical clusters scales, i.e., $\gtrsim 10^{14}M_{\odot}$. This provides an analytical confirmation for recent results from cosmological numerical simulations [H.-Y. Schive {\it et al.}, Nature Physics, {\bf10}, 496 (2014)].
description: 11 pages. Final version to appear in EPJC
A viscous instability in axially symmetric laminar shear flows
Creators: name: Shakura, Nikolai
name: Postnov, Konstantin
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A viscous instability in shearing laminar axisymmetric hydrodynamic flows around a gravitating center is described. In the linearized hydrodynamic equations written in the Boussinesq approximation with microscopic molecular transport coefficients, the instability arises when the viscous dissipation is taken into account in the energy equation. Using the local WKB approximation, we derive a third-order algebraic dispersion equation with two modes representing the modified Rayleigh modes R+ and R-, and the third X-mode. We show that in thin accretion flows the viscosity destabilizes one of the Rayleigh modes in a wide range of wavenumbers, while the X-mode always remains stable. In Keplerian flows, the instability increment is found to be a few Keplerian rotational periods at wavelengths with $kr\sim 10-50$. This instability may cause turbulence in astrophysical accretion discs even in the absence of magnetic field.
description: 12 pages, 7 figure, accepted for publication in MNRAS
Fermi surface reconstruction and multiple quantum phase transitions in the antiferromagnet CeRhIn$_5$
Creators: name: Jiao, L.
name: Chen, Y.
name: Kohama, Y.
name: Graf, D.
name: Bauer, E. D.
name: Singleton, J.
name: Zhu, J. -X.
name: Weng, Z. F.
name: Pang, G. M.
name: Shang, T.
name: Zhang, J. L.
name: Lee, H. O.
name: Park, T.
name: Jaime, M.
name: Thompson, J. D.
name: Steglich, F.
name: Si, Q.
name: Yuan, H. Q.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Conventional, thermally-driven continuous phase transitions are described by universal critical behaviour that is independent of the specific microscopic details of a material. However, many current studies focus on materials that exhibit quantum-driven continuous phase transitions (quantum critical points, or QCPs) at absolute zero temperature. The classification of such QCPs and the question of whether they show universal behaviour remain open issues. Here we report measurements of heat capacity and de Haas-van Alphen (dHvA) oscillations at low temperatures across a field-induced antiferromagnetic QCP (B$_{c0}\simeq$ 50 T) in the heavy-fermion metal CeRhIn$_5$. A sharp, magnetic-field-induced change in Fermi surface is detected both in the dHvA effect and Hall resistivity at B$_0^*\simeq$ 30 T, well inside the antiferromagnetic phase. Comparisons with band-structure calculations and properties of isostructural CeCoIn$_5$ suggest that the Fermi-surface change at B$_0^*$ is associated with a localized to itinerant transition of the Ce-4f electrons in CeRhIn$_5$. Taken in conjunction with pressure data, our results demonstrate that at least two distinct classes of QCP are observable in CeRhIn$_5$, a significant step towards the derivation of a universal phase diagram for QCPs.
description: 30 pages, including Supporting Information. appears in PNAS, Early Edition published on January 5, 2015
Discretization and Stabilization of Energy-Based Controller for Period Switching Control and Flexible Scheduling
Creators: name: Tafrishi, Seyed Amir
name: Dai, Xiaotian
name: Hirata, Yasuhisa
name: Burns, Alan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: Robotics (cs.RO)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Emerging advanced control applications, with increased complexity in software but limited computing resources, suggest that real-time controllers should have adaptable designs. These control strategies also should be designed with consideration of the run-time behavior of the system. One of such research attempts is to design the controller along with the task scheduler, known as control-scheduling co-design, for more predictable timing behavior as well as surviving system overloads. Unlike traditional controller designs, which have equal-distance sampling periods, the co-design approach increases the system flexibility and resilience by explicitly considering timing properties, for example using an event-based controller or with multiple sampling times (non-uniform sampling and control). Within this context, we introduce the first work on the discretization of an energy-based controller that can switch arbitrarily between multiple periods and adjust the control parameters accordingly without destabilizing the system. A digital controller design based on this paradigm for a DC motor with an elastic load as an example is introduced and the stability condition is given based on the proposed Lyapunov function. The method is evaluated with various computer-based simulations which demonstrate its effectiveness.
description: Accepted to 2022 American Control Conference (ACC), 6 pages, 8 figures
Binary Candidates in the Jovian Trojan and Hilda Populations from NEOWISE Lightcurves
Creators: name: Sonnett, S.
name: Mainzer, A.
name: Grav, T.
name: Masiero, J.
name: Bauer, J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Determining the binary fraction for a population of asteroids, particularly as a function of separation between the two components, helps describe the dynamical environment at the time the binaries formed, which in turn offers constraints on the dynamical evolution of the solar system. We searched the NEOWISE archival dataset for close and contact binary Trojans and Hildas via their diagnostically large lightcurve amplitudes. We present 48 out of 554 Hilda and 34 out of 953 Trojan binary candidates in need of follow-up to confirm their large lightcurve amplitudes and subsequently constrain the binary orbit and component sizes. From these candidates, we calculate a preliminary estimate of the binary fraction without confirmation or debiasing of 14-23% for Trojans larger than ~12 km and 30-51% for Hildas larger than ~4 km. Once the binary candidates have been confirmed, it should be possible to infer the underlying, debiased binary fraction through estimation of survey biases.
Spectral estimation for diffusions with random sampling times
Creators: name: Chorowski, Jakub
name: Trabs, Mathias
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistics Theory (math.ST)
subject: Probability (math.PR)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: Primary 62M05, Secondary 60J60, 62G99, 62M15

description: The nonparametric estimation of the volatility and the drift coefficient of a scalar diffusion is studied when the process is observed at random time points. The constructed estimator generalizes the spectral method by Gobet, Hoffmann and Reiß [Ann. Statist. 32 (2006), 2223-2253]. The estimation procedure is optimal in the minimax sense and adaptive with respect to the sampling time distribution and the regularity of the coefficients. The proofs are based on the eigenvalue problem for the generalized transition operator. The finite sample performance is illustrated in a numerical example.
description: 30 pages, 2 figures
Helical Spin Order from Topological Dirac and Weyl Semimetals
Creators: name: Sun, Xiao-Qi
name: Zhang, Shou-Cheng
name: Wang, Zhong
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study dynamical mass generation and the resultant helical spin orders in topological Dirac and Weyl semimetals, including the edge states of quantum spin Hall insulators, the surface states of weak topological insulators, and the bulk materials of Weyl semimetals. In particular, the helical spin textures of Weyl semimetals manifest the spin-momentum locking of Weyl fermions in a visible manner. The spin-wave fluctuations of the helical order carry electric charge density; therefore, the spin textures can be electrically controlled in a simple and predictable manner.
description: 6 pages, 4 figures
Il guanto di Gilda. Recensione a: Roberto Calasso, La follia che viene dalle Ninfe, Adelphi, Milano 2005
Creators: name: Pisani Daniele
Publisher: name: La Rivista di Engramma
Year: 2005
Subjects: Calasso
Adelphi
La follia che viene dalle ninfe

description: Review of the book “La follia che viene dalle Ninfe“ written by Roberto Calasso and published by Adelphi.
Daniele Pisani retraces the collection of articles, essays and interventions by Roberto Calasso, where the author makes daring parallels between celestial bodies and contemporary divas.
Time optimal holonomic quantum computation
Creators: name: Alves, Gabriel O.
name: Sjöqvist, Erik
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A three-level system can be used in a $Λ$-type configuration in order to construct a universal set of quantum gates through the use of non-Abelian non-adiabatic geometrical phases. Such construction allows for high-speed operation times which diminish the effects of decoherence. This might be, however, accompanied by a breakdown of the validity of the rotating wave approximation (RWA) due to the comparable time scale between counter-rotating terms and the pulse length, which greatly affects the dynamics. Here, we investigate the trade-off between dissipative effects and the RWA validity, obtaining the optimal regime for the operation of the holonomic quantum gates.
description: 8 pages, 6 figures
Sustained unidirectional rotation of a self-organized DNA rotor on a nanopore
Creators: name: Shi, Xin
name: Pumm, Anna-Katharina
name: Isensee, Jonas
name: Zhao, Wenxuan
name: Verschueren, Daniel
name: Martin-Gonzalez, Alejandro
name: Golestanian, Ramin
name: Dietz, Hendrik
name: Dekker, Cees
Publisher: name: arXiv
Year: 2022
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Flow-driven rotary motors drive functional processes in human society such as windmills and water wheels. Although examples of such rotary motors also feature prominently in cell biology, their synthetic construction at the nanoscale has thus far remained elusive. Here, we demonstrate flow-driven rotary motion of a self-organized DNA nanostructure that is docked onto a nanopore in a thin solid-state membrane. An elastic DNA bundle self assembles into a chiral conformation upon phoretic docking onto the solid-state nanopore, and subsequently displays a sustained unidirectional rotary motion of up to 20 revolutions/s. The rotors harness energy from a nanoscale water and ion flow that is generated by a static (electro)chemical potential gradient in the nanopore that is established through a salt gradient or applied voltage. These artificial nanoengines self-organize and operate autonomously in physiological conditions, paving a new direction in constructing energy-transducing motors at nanoscale interfaces.
Modeling, robust control synthesis and worst-case analysis for an on-orbit servicing mission with large flexible spacecraft
Creators: name: Rodrigues, Ricardo
name: Preda, Valentin
name: Sanfedino, Francesco
name: Alazard, Daniel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper outlines a complete methodology for modeling an on-orbit servicing mission scenario and designing a feedback control system for the attitude dynamics that is guaranteed to robustly meet pointing requirements, despite model uncertainties as well as large inertia and flexibility changes throughout the mission scenario. A model of the uncertain plant was derived, which fully captures the dynamics and couplings between all subsystems as well as the decoupled/coupled configurations of the chaser/target system in a single linear fractional representation (LFR). In addition, a new approach is proposed to model and analyze a closed-loop kinematic chain formed by the chaser and the target spacecraft through the chaser's robotic arm, which uses two local spring-damper systems with uncertain damping and stiffness. This approach offers the possibility to model the dynamical behaviour of a docking mechanism with dynamic stiffness and damping. The controller was designed by taking into account all the interactions between subsystems and uncertainties as well as the time-varying and coupled flexible dynamics. Lastly, the robust stability and worst-case performances were assessed by means of a structured singular value analysis.
Optimal Data Structures for Farthest-Point Queries in Cactus Networks
Creators: name: Bose, Prosenjit
name: De Carufel, Jean-Lou
name: Grimm, Carsten
name: Maheshwari, Anil
name: Smid, Michiel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: Consider the continuum of points on the edges of a network, i.e., a connected, undirected graph with positive edge weights. We measure the distance between these points in terms of the weighted shortest path distance, called the network distance. Within this metric space, we study farthest points and farthest distances. We introduce optimal data structures supporting queries for the farthest distance and the farthest points on trees, cycles, uni-cyclic networks, and cactus networks.
การศึกษาในศตวรรษที่ 21 และการเตรียมความพร้อมของประเทศไทยเพื่อเข้าสู่ ประชาคมอาเซียน
Creators: name: อระนุช โกศล
Publisher: name: ศูนย์สนับสนุนและพัฒนาการเรียนการสอน มหาวิทยาลัยรังสิต
Year: 2014
Subjects: ASEAN Community
Education in the 21st Century
Skills in the 21st Century
การศึกษาในศตวรรษที่ 21
ทักษะในศตวรรษที่ 21
ประชาคมอาเซียน

description: วารสารพัฒนาการเรียนการสอน, 8, 1, 114-125
การใช้เนื้อหาในหนังสือพิมพ์รายวันสร้างแผนการจัดการเรียนรู้วิชาภาษาไทยที่มีผู้เรียนเป็นศูนย์กลางสำหรับนักเรียนชั้นมัธยมศึกษาปี ที่ 6
Creators: name: ธัชนันท์ ศตสุข
Publisher: name: ศูนย์สนับสนุนและพัฒนาการเรียนการสอน มหาวิทยาลัยรังสิต
Year: 2014
Subjects: Learner-Centred
Lesson Plan
Newspapers
Secondary School 6 Students
Thai Language
นักเรียนชั้นมัธยมศึกษาปีที่ 6
ผู้เรียนเป็นศูนย์กลาง
ภาษาไทย
หนังสือพิมพ์
แผนการจัดการเรียนรู้

description: วารสารพัฒนาการเรียนการสอน, 8, 2, 10-26
title:  Alessandro Sterpa, La libertà dalla paura. Una lettura costituzionale della sicurezza, Editoriale Scientifica, Napoli, 2019, pp. 179
Creators: name: Maestri  ,  Gabriele
Publisher: name: Roma TrE-Press
Year: 2019

description: Democrazia e Sicurezza – 2018, n. 3
Breakdown of the semiclassical approximation during the early stages of preheating
Creators: name: Anderson, Paul R.
name: Molina-Paris, Carmen
name: Sanders, Dillon H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The validity of the semiclassical approximation is investigated during the preheating phase in models of chaotic inflation using a modification of a criterion previously proposed for semiclassical gravity. If the modified criterion is violated then fluctuations of the two-point function for the quantum fields are large and the semiclassical approximation is not valid. Evidence is provided that the semiclassical approximation breaks down during the early stages of preheating, well before either scattering effects or backreaction effects are important.
description: 9 pages, 2 figures
Tubulation and dispersion of oil by bacterial growth on droplets
Creators: name: Hickl, Vincent
name: Juarez, Gabriel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Bacteria on surfaces exhibit collective behaviors, such as active turbulence and active stresses, which result from their motility, growth, and interactions with their local surroundings. However, interfacial deformations on soft surfaces and liquid interfaces caused by active growth, particularly over long time scales, are not well understood. Here, we describe experimental observations on the emergence of tubular structures arising from the growth of rod-shaped bacteria at the interface of oil droplets in water. Using microfluidics and timelapse microscopy, the dimensions and extension rates of individual tubular structures as well as bulk bio-aggregate formation are quantified for hundreds of droplets over 72 hours. Tubular structures are comparable in length to the initial droplet radius and are composed of an outer shell of bacteria that stabilize an inner filament of oil. The oil filament breaks up into smaller microdroplets dispersed within the bacterial shell. This work provides insight into active stresses at deformable interfaces and improves our understanding of microbial oil biodegradation and its potential influence on the transport of droplets in the ocean water column.
Activation of autophagy during normothermic machine perfusion of discarded livers is associated with improved hepatocellular function
Creators: name: Ohman, Anders
name: Raigani, Siavash
name: Santiago, John
name: Heaney, Megan
name: Boylan, Joan
name: Parry, Nicola
name: Carroll, Cailah
name: Baptista, Sofia
name: Uygun, Korkut
name: Gruppuso, Phillip
name: Sanders, Jennifer
name: Yeh, Heidi
name: Santiago, John C.
name: Heaney, Megan G.
name: Boylan, Joan M.
name: Baptista, Sofia G.
name: Gruppuso, Philip A.
name: Sanders, Jennifer A.
Publisher: name: Zenodo
Year: 2021
Subjects: subject: Physiology (medical)
subject: Gastroenterology
subject: Hepatology
subject: Physiology
subject: FOS: Biological sciences

description: We demonstrate that ischemia-reperfusion injury occurs in all livers during NMP, though there are notable differences in gene expression between functional and nonfunctional livers. We further demonstrate that activation of the liver's repair and homeostasis mechanisms through autophagy plays a vital role in the graft's response to injury and may impact liver function. These findings indicate that liver autophagy might be a key therapeutic target for rehabilitating the function of severely injured or untransplantable livers.
description: Funding provided by: National Institute of Environmental Health Sciences
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000066
Award Number: T32ES007272Funding provided by: Massachusetts General Hospital Executive Committee on Research*
Crossref Funder Registry ID:
Award Number: Funding provided by: National Institutes of Diabetes and Digestive and Kidney Diseases*
Crossref Funder Registry ID:
Award Number: R01DK096075, R01DK107875, R01DK114506Funding provided by: National Science Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000001
Award Number: EEC 1941543, ATP-BioFunding provided by: Rhode Island Hospital/Brown University Department of Pediatrics*
Crossref Funder Registry ID:
Award Number: Funding provided by: HHS | NIH | National Institute of Diabetes and Digestive and Kidney Diseases
Award Number: R01DK096075Funding provided by: HHS | NIH | National Institute of Diabetes and Digestive and Kidney Diseases
Award Number: R01DK107875Funding provided by: HHS | NIH | National Institute of Diabetes and Digestive and Kidney Diseases
Award Number: R01DK114506Funding provided by: HHS | NIH | National Institute of Environmental Health Sciences
Award Number: T32ES007272Funding provided by: National Science Foundation
Award Number: EEC 1941543
Supplementary Information; Figure S1; Tables S1-S9; Supplementary box 1 from Sex-biased gene expression in nutrient sensing pathways
Creators: name: Bennett-Keki, Suzanne
name: Fowler, Emily K.
name: Folkes, Leighton
name: Moxon, Simon
name: Chapman, Tracey
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology

description: Supplementary Information; Figure S1; Tables S1-S9; Supplementary box 1
Computational and in vitro studies of blast-induced blood-brain barrier disruption
Creators: name: Del Razo, Mauricio J.
name: Morofuji, Yoichi
name: Meabon, James S.
name: Huber, B. Russell
name: Peskind, Elaine R.
name: Banks, William A.
name: Mourad, Pierre D.
name: Leveque, Randall J.
name: Cook, David G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: Medical Physics (physics.med-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 65Nxx, 92-08, 35Q92, 76Txx

description: There is growing concern that blast-exposed individuals are at risk of developing neurological disorders later in life. Therefore, it is important to understand the dynamic properties of blast forces on brain cells, including the endothelial cells that maintain the blood-brain barrier (BBB), which regulates the passage of nutrients into the brain and protects it from toxins in the blood. To better understand the effect of shock waves on the BBB we have investigated an {\em in vitro} model in which BBB endothelial cells are grown in transwell vessels and exposed in a shock tube, confirming that BBB integrity is directly related to shock wave intensity. It is difficult to directly measure the forces acting on these cells in the transwell container during the experiments, and so a computational tool has been developed and presented in this paper. Two-dimensional axisymmetric Euler equations with the Tammann equation of state were used to model the transwell materials, and a high-resolution finite volume method based on Riemann solvers and the Clawpack software was used to solve these equations in a mixed Eulerian/Lagrangian frame. Results indicated that the geometry of the transwell plays a significant role in the observed pressure time series in these experiments. We also found that pressures can fall below vapor pressure due to the interaction of reflecting and diffracting shock waves, suggesting that cavitation bubbles could be a damage mechanism. Computations that include a simulated hydrophone inserted in the transwell suggest that the instrument itself could significantly alter blast wave properties. These findings illustrate the need for further computational modeling studies aimed at understanding possible blast-induced BBB damage.
An Alternative Formation Model for Antideuterons from Dark Matter
Creators: name: Dal, L. A.
name: Raklev, A. R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Antideuterons are a potential messenger for dark matter annihilation or decay in our own galaxy, with very low backgrounds expected from astrophysical processes. The standard coalescence model of antideuteron formation, while simple to implement, is shown to be under considerable strain by recent data from the LHC. We suggest a new empirically based model, with only one free parameter, which is better able to cope with these data, and we explore the consequences of the model for dark matter searches.
description: 19 pages, 15 figures, C++ code with parametrised cross sections can be found in the ancillary folder, v2 fixes important missing references
Adaptive Attitude Estimation Using a Hybrid Model-Learning Approach
Creators: name: Vertzberger, Eran
name: Klein, Itzik
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Attitude determination using the smartphone's inertial sensors poses a major challenge due to the sensor low-performance grade and variate nature of the walking pedestrian. In this paper, data-driven techniques are employed to address that challenge. To that end, a hybrid deep learning and model based solution for attitude estimation is proposed. Here, classical model based equations are applied to form an adaptive complementary filter structure. Instead of using constant or model based adaptive weights, the accelerometer weights in each axis are determined by a unique neural network. The performance of the proposed hybrid approach is evaluated relative to popular model based approaches using experimental data.
การพัฒนารูปแบบการบริหารโรงเรียนประถมศึกษาเอกชนโดยใช้หลักธรรมาภิบาล
Creators: name: ศิริพันธ์ เกตุไชโย
Publisher: name: ศูนย์สนับสนุนและพัฒนาการเรียนการสอน มหาวิทยาลัยรังสิต
Year: 2014
Subjects: Indicator Of Good Governance
Management Model
Private School
ตัวบ่งชี้หลักธรรมาภิบาล
รูปแบบการบริหาร
โรงเรียนเอกชน

description: วารสารพัฒนาการเรียนการสอน, 8, 2, 27-34
Parameterization of Cross-Token Relations with Relative Positional Encoding for Vision MLP
Creators: name: Wang, Zhicai
name: Hao, Yanbin
name: Gao, Xingyu
name: Zhang, Hao
name: Wang, Shuo
name: Mu, Tingting
name: He, Xiangnan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Vision multi-layer perceptrons (MLPs) have shown promising performance in computer vision tasks, and become the main competitor of CNNs and vision Transformers. They use token-mixing layers to capture cross-token interactions, as opposed to the multi-head self-attention mechanism used by Transformers. However, the heavily parameterized token-mixing layers naturally lack mechanisms to capture local information and multi-granular non-local relations, thus their discriminative power is restrained. To tackle this issue, we propose a new positional spacial gating unit (PoSGU). It exploits the attention formulations used in the classical relative positional encoding (RPE), to efficiently encode the cross-token relations for token mixing. It can successfully reduce the current quadratic parameter complexity $O(N^2)$ of vision MLPs to $O(N)$ and $O(1)$. We experiment with two RPE mechanisms, and further propose a group-wise extension to improve their expressive power with the accomplishment of multi-granular contexts. These then serve as the key building blocks of a new type of vision MLP, referred to as PosMLP. We evaluate the effectiveness of the proposed approach by conducting thorough experiments, demonstrating an improved or comparable performance with reduced parameter complexity. For instance, for a model trained on ImageNet1K, we achieve a performance improvement from 72.14\% to 74.02\% and a learnable parameter reduction from $19.4M$ to $18.2M$. Code could be found at https://github.com/Zhicaiwww/PosMLP.
ความสัมพันธ์ระหว่างแรงจูงใจกับความวิตกกังวลในการเรียนวิชาภาษาอังกฤษของนิสิตระดับปริญญาตรีมหาวิทยาลัยบูรพา
Creators: name: Soksan Dams
Publisher: name: ศูนย์สนับสนุนและพัฒนาการเรียนการสอน มหาวิทยาลัยรังสิต
Year: 2014
Subjects: anxiety
Bachelor Degree Students
English Learning
Motivation
การเรียนวิชาภาษาอังกฤษ
ความวิตกกังวล
นิสิตระดับปริญญาตรี
แรงจูงใจ

description: วารสารพัฒนาการเรียนการสอน, 8, 2, 35-45
Mathematical Student Education - "listki" or dialog?
Creators: name: Kovaldji, Alexander
name: Kanel-Belov, Alexei
Publisher: name: arXiv
Year: 2015
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics
subject: 01-01

description: The paper is devoted to technology of math. education in Russia in special mathematical schools ("listkovaya systema"). This system has positive sides and most classes in Russian mathematical schools or circles almost always uses it. However, this system is not good to teach students, in particular to theoretical thinking. We discourse positive and negative sides of it and explain why it should be complimented. The second part of paper devoted to some specific items - information theory, algebra and non-Euclidean geometry. We show, where is dialog is necessary.
description: 16 pages, in Russian, to appear