cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Constraints on neutrino and dark radiation interactions using cosmological observations
Creators: name: Smith, Tristan L.
name: Das, Sudeep
name: Zahn, Oliver
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Observations of the cosmic microwave background (CMB) and large-scale structure (LSS) provide a unique opportunity to explore the fundamental properties of the constituents that compose the cosmic dark radiation background (CDRB), of which the three standard neutrinos are thought to be the dominant component. We report on the first constraint to the CDRB rest-frame sound speed, ceff^2, using the most recent CMB and LSS data. Additionally, we report improved constraints to the CDRB viscosity parameter, cvis^2. For a non-interacting species, these parameters both equal 1/3. Using current data we find that a standard CDRB, composed entirely of three non-interacting neutrino species, is ruled out at the 99% confidence level (C.L.) with ceff^2 = 0.30 +0.027 -0.026 and cvis^2 = 0.44 +0.27 -0.21 (95% C.L.). We also discuss how constraints to these parameters from current and future observations (such as the Planck satellite) allow us to explore the fundamental properties of any anomalous radiative energy density beyond the standard three neutrinos.
description: 6 pages, 3 figures, comments welcome; v2: updated with SPT data, corrected minor typos; v3: version accepted for publication in PRD
Sorvegliati e puniti”. Nascita ed evoluzione del sistema penitenziario(1750-1850) Un percorso didattico di storia sociale per la classe terza liceo e seconda SCC
Creators: name: Shaukat, Saffia Elisa
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2014

description: Il lavoro si propone di organizzare didatticamente la tematica della nascita e dell’evoluzione del penitenziario nel contesto in profonda mutazione della Rivoluzione industriale e della nascita dello Stato moderno. L’approccio di storia sociale d’en bas ha diretto l’attenzione innanzitutto alle nuove classificazioni dei detenuti e in secondo luogo alle pratiche correzionali della reclusione. Il percorso incentrato sui soggetti, sulle pratiche e suoi luoghi del “diritto di punire” si è avvalso infine di una dimensione più classica di evoluzione del pensiero in Europa e negli Stati Uniti a partire dagli illuministi, attraverso il rapporto di Tocqueville, per arrivare al modello del Panopticon di Bentham. In generale, l’attenzione per il contesto economico e sociale permette di uscire dai percorsi classici legati a tale problematica, di matrice politica e filosofica, per ancorare il discorso ai bisogni delle nuove classi dominanti e al rinnovato bisogno di disciplinamento sociale. Infine il dibattito storiografico sull’istituzione penitenziaria accompagna l’evoluzione delle politiche e delle pratiche della reclusione. Il percorso parte da una raccolta di preconoscenze e rappresentazioni sulla tematica e si organizza, per mezzo dell’approccio di ricerca-azione, tenendo presente le preferenze degli allievi in ambito didattico. Il percorso si conclude con un’esperienza nelle celle delle Ex-Pretoriali di Locarno. Relatore: Pasquale Genasci. Materia: storia.
Color integration in biomass-derived carbon dots to realize one-step white light
Creators: name: Shi, Hui
name: Li, Chuanqing
name: Ke, Xucheng
name: Cai, Yu
name: Qian, Shuangjie
name: Wu, Liuqing
name: Deng, Yuqi
name: Sai, Liman
name: Xu, Xiaofeng
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Mental Health

description: In this work, the extract of mango leaf was chosen as a green raw material, and ethylenediamine (EDA) as a supporting material for a controllable one-step reaction to realizing white light. During the reaction, EDA could balance the precursor consumption, and participated in the formation of the carbon dots (CDs). The final integrated emitting color of the materials could be adjusted to white light with a one-step hydrothermal treatment. The composite solution was directly coated on a commercial 365 nm light-emitting diode (LED) chip without a polymer matrix and showed a stable white light with CIE coordinates of (0.326, 0.328). This work developed an interesting method for tuning the reaction process in a complex system and provided a simple way of realizing an integrated white light with a single wavelength excitation.
title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ»ÐµÐºÑÑÐ¾Ð¼Ð°Ð³Ð½Ð¸ÑÐ½ÑÑ Ð¿Ð¾Ð»ÐµÐ¹, ÑÐ¾Ð·Ð´Ð°Ð²Ð°ÐµÐ¼ÑÑ Ð¿Ð¾ÑÑÐ°ÑÐ¸Ð²Ð½ÑÐ¼Ð¸ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»ÑÐ½ÑÐ¼Ð¸ ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ°Ð¼Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Research of the electromagnetic fields created by portable personal computers
Creators: name: ÐÐ²Ð°Ð½ÐµÐ½ÐºÐ¾Ð², ÐÐ°Ð²ÐµÐ»
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: ÑÐ»ÐµÐºÑÑÐ¾Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ðµ Ð¿Ð¾Ð»Ðµ
ÑÐ»ÐµÐºÑÑÐ¾Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ðµ Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ðµ
Ð½Ð¾ÑÑÐ±ÑÐº
Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»ÑÐ½ÑÐ¹ ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑ
Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð½Ð¾ÑÑÑ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ñ
Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð°Ñ Ð¸Ð½Ð´ÑÐºÑÐ¸Ñ
electromagnetic field
electromagnetic radiation
laptop
personal computer
electric field tension
magnetic induction

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð±ÑÐ» Ð¿ÑÐ¾Ð²ÐµÐ´ÑÐ½ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½Ñ Ð¸ ÑÑÐ°Ð²Ð½Ð¸ÑÐµÐ»ÑÐ½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð·, ÑÐ¾Ð·Ð´Ð°Ð²Ð°ÐµÐ¼ÑÑ Ð­ÐÐ Ð¾Ñ ÐÐ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¹ Ð¸ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐµÐ¹, Ð²ÑÐ¿ÑÑÐºÐ°ÐµÐ¼ÑÐµ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐ¼Ð¸ Ð¼Ð¸ÑÐ¾Ð²ÑÐ¼Ð¸ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸ÑÐµÐ»ÑÐ¼Ð¸. ÐÑÐ»Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ñ Ð¸ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ Ð·Ð°ÑÐ¸ÑÐµ Ð¾Ñ Ð­ÐÐ Ð¸ Ð½Ð¾ÑÐ¼Ð°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÐ»ÐµÐºÑÑÐ¾Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¹ ÑÑÐµÐ´Ñ Ð¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÐµÐ»Ñ ÐÐ.
description: In this work,an experiment was conducted and a comparative analysis of the EMF from a PC of various designs and capacities, produced by various global manufacturers. Measures and recommendations were developed for protection against EMF and normalization of the electromagnetic environment of the PC use.
Determination of building flood risk maps from LiDAR mobile mapping data
Creators: name: Feng, Yu
name: Xiao, Qing
name: Brenner, Claus
name: Peche, Aaron
name: Yang, Juntao
name: Feuerhake, Udo
name: Sester, Monika
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: With increasing urbanization, flooding is a major challenge for many cities today. Based on forecast precipitation, topography, and pipe networks, flood simulations can provide early warnings for areas and buildings at risk of flooding. Basement windows, doors, and underground garage entrances are common places where floodwater can flow into a building. Some buildings have been prepared or designed considering the threat of flooding, but others have not. Therefore, knowing the heights of these facade openings helps to identify places that are more susceptible to water ingress. However, such data is not yet readily available in most cities. Traditional surveying of the desired targets may be used, but this is a very time-consuming and laborious process. This research presents a new process for the extraction of windows and doors from LiDAR mobile mapping data. Deep learning object detection models are trained to identify these objects. Usually, this requires to provide large amounts of manual annotations. In this paper, we mitigate this problem by leveraging a rule-based method. In a first step, the rule-based method is used to generate pseudo-labels. A semi-supervised learning strategy is then applied with three different levels of supervision. The results show that using only automatically generated pseudo-labels, the learning-based model outperforms the rule-based approach by 14.6% in terms of F1-score. After five hours of human supervision, it is possible to improve the model by another 6.2%. By comparing the detected facade openings' heights with the predicted water levels from a flood simulation model, a map can be produced which assigns per-building flood risk levels. This information can be combined with flood forecasting to provide a more targeted disaster prevention guide for the city's infrastructure and residential buildings.
$H$-band Temperature and Metallicity Indicators for Cool Giants: Empirical Relations in Bayesian Framework
Creators: name: Ghosh, Supriyo
name: Ninan, J. P.
name: Ojha, D. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We explored here the near-infrared $H$-band atmospheric window aiming to provide quantitative diagnostic tools for deriving stellar parameters, for instance, effective temperature ($T_{eff}$) and metallicity ([$Fe/H$]), of cool giants ($T_{eff}$ $$ 0.0 dex), solar ($-$0.3 dex $
description: 15 pages, 16 figures, 5 tables. Accepted for publication in MNRAS
Analytical Solution of Covariance Evolution for Irregular LDPC Codes
Creators: name: Nozaki, Takayuki
name: Kasai, Kenta
name: Sakaniwa, Kohichi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: A scaling law developed by Amraoui et al. is a powerful technique to estimate the block error probability of finite length low-density parity-check (LDPC) codes. Solving a system of differential equations called covariance evolution is a method to obtain the scaling parameter. However, the covariance evolution has not been analytically solved. In this paper, we present the analytical solution of the covariance evolution for irregular LDPC code ensembles.
description: 13pages, submitted to IEEE trans. on information theory, January 2010
Coherent coupling of two remote magnonic resonators mediated by superconducting circuits
Creators: name: Li, Yi
name: Yefremenko, Volodymyr G.
name: Lisovenko, Marharyta
name: Trevillian, Cody
name: Polakovic, Tomas
name: Cecil, Thomas W.
name: Barry, Pete S.
name: Pearson, John
name: Divan, Ralu
name: Tyberkevych, Vasyl
name: Chang, Clarence L.
name: Welp, Ulrich
name: Kwok, Wai-Kwong
name: Novosad, Valentine
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate microwave-mediated distant magnon-magnon coupling on a superconducting circuit platform, incorporating chip-mounted single-crystal Y$_3$Fe$_5$O$_{12}$ (YIG) spheres. Coherent level repulsion and dissipative level attraction between the magnon modes of the two YIG spheres are demonstrated. The former is mediated by cavity photons of a superconducting resonator, and the latter is mediated by propagating photons of a coplanar waveguide. Our results open new avenues towards exploring integrated hybrid magnonic networks for coherent information processing on a quantum-compatible superconducting platform.
description: 6 pages, 4 figures, Accepted in Phys. Rev. Lett
Evolution from helical to collinear ferromagnetic order of the Eu$^{2+}$ spins in RbEu(Fe$_{1-x}$Ni$_{x}$)$_{4}$As$_{4}$
Creators: name: Xu, Qianhui
name: Liu, Yi
name: Hao, Sijie
name: Qian, Jiahui
name: Su, Cheng
name: Wang, Chin-Wei
name: Hansen, Thomas
name: Fu, Zhendong
name: Su, Yixi
name: Li, Wei
name: Cao, Guang-Han
name: Xiao, Yinguo
name: Jin, Wentao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The ground-state magnetic structures of the Eu$^{2+}$ spins in recently discovered RbEu(Fe$_{1-x}$Ni$_{x}$)$_{4}$As$_{4}$ superconductors have been investigated by neutron powder diffraction measurements. It is found that as the superconductivity gets suppressed with the increase of Ni doping, the magnetic propagation vector of the Eu sublattice diminishes, corresponding to the decrease of the rotation angle between the moments in neighboring Eu layers. The ferromagnetic Eu layers are helically modulated along the $\mathit{c}$ axis with an incommensurate magnetic propagation vector in both the ferromagnetic superconductor RbEu(Fe$_{0.95}$Ni$_{0.05}$)$_{4}$As$_{4}$ and the superconducting ferromagnet RbEu(Fe$_{0.93}$Ni$_{0.07}$)$_{4}$As$_{4}$. Such a helical structure transforms into a purely collinear ferromagnetic structure for non-superconducting RbEu(Fe$_{0.91}$Ni$_{0.09}$)$_{4}$As$_{4}$, with all the Eu$^{2+}$ spins lying along the tetragonal (1 1 0) direction. The evolution from helical to collinear ferromagnetic order of the Eu$^{2+}$ spins with increasing Ni doping is supported by first-principles calculations. The variation of the rotation angle between adjacent Eu$^{2+}$ layers can be well explained by considering the change of magnetic exchange couplings mediated by the indirect Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction.
description: 9 pages, 6 figures, accepted for publication in Physical Review Research
Hyperon Form Factors from N_f=2+1 QCD
Creators: name: Göckeler, M.
name: Hägler, Ph.
name: Horsley, R.
name: Nakamura, Y.
name: Pleiter, D.
name: Rakow, P. E. L.
name: Schäfer, A.
name: Schierholz, G.
name: Stüben, H.
name: Winter, F.
name: Zanotti, J. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present results from the QCDSF/UKQCD collaboration for the electromagnetic and semi-leptonic form factors for the hyperons. The simulations are performed on our new ensembles generated with 2+1 flavours of dynamical O(a)-improved Wilson fermions. A unique feature of these configurations is that the quark masses are tuned so that the singlet quark mass is held fixed at its physical value. We use 5 such choices of the individual quark masses on 24^3x48 lattices with a lattice spacing of about 0.078 fm.
description: 7 pages, 6 figures, 1 table. Talk presented at The XXVIII International Symposium on Lattice Field Theory, Villasimius, Italy, 14-19 June 2010
Low-lying states in 8B
Creators: name: Mitchell, J. P.
name: Rogachev, G. V.
name: Johnson, E. D.
name: Baby, L. T.
name: Kemper, K. W.
name: Moro, A. M.
name: Peplowski, P. N.
name: Volya, A.
name: Wiedenhoever, I.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Excitation functions of elastic and inelastic 7Be+p scattering were measured in the energy range between 1.6 and 2.8 MeV in the c.m. An R-matrix analysis of the excitation functions provides strong evidence for new positive parity states in 8B. A new 2+ state at an excitation energy of 2.55 MeV was observed and a new 0+ state at 1.9 MeV is tentatively suggested. The R-matrix and Time Dependent Continuum Shell Model were used in the analysis of the excitation functions. The new results are compared to the calculations of contemporary theoretical models.
description: 6 pages, 5 figures, accepted as Rapid Communication in Phys. Rev. C
Structural insights into the modulation of bacterial peptidoglycan synthase activity
Creators: name: Caveney, Nathanael Adam
Publisher: name: University of British Columbia
Year: 2021

description: The bacterial cell wall plays a crucial role in cellular viability and is an important drug target. The bacterial cell wall is constructed using a complex biosynthetic pathway, which ultimately terminates in the activity of peptidoglycan synthases. These synthases act to polymerize the lipid-linked cell wall precursors and crosslink these strands into the existing sacculus. The activity of these synthases can be modulated in two key ways. First, there are proteins which modulate the type of synthase activity. In most bacteria, the peptidoglycan synthase crosslinking reaction uses D,D-transpeptidase activity. However, an alternate crosslinking mechanism involving the formation of a complex between peptidoglycan synthases and the L,D-transpeptidase YcbB can lead to bypass of D,D-transpeptidation, β-lactam resistance, typhoid toxin release, and stress linked cell wall crosslinking. Second, there are proteins which associate with peptidoglycan synthases to stimulate or inhibit the canonical synthase activity. In E. coli, there are the positive regulators LpoA and LpoB, and the negative regulator CpoB. These proteins seen in E. coli are conserved across a large number of Gram-negative organisms, though the human pathogen P. aeruginosa is seen to have an alternative to LpoB, known as LpoP. Here, we provide insight into the structure and function of YcbB and LpoP. We show that the crystallographic structure of YcbB from E. coli, S. Typhi, and C. rodentium consists of a conserved L,D-transpeptidase catalytic domain, substrate capping loop subdomain, peptidoglycan-binding domain and scaffolding domain. Meropenem and ertapenem acylation of YcbB gives insight into inhibition by carbapenems, the singular antibiotic class with significant activity against L,D- transpeptidases. Additionally, we probe the interaction network of this pathway, assay β-lactam resistance in vivo, and provide insight into the role of YcbB in acute bacterial infection. Second, we show that the crystallographic structure of LpoP consists of tandem tetratricopeptide repeats, distinct from the structure of the canonical LpoB. Using in vitro glycosyltransferase and transpeptidase assays, we compare and contrast the structure of LpoP- and LpoB-PBP1b systems. As a whole, this thesis provides insight into both forms of modulation of peptidoglycan synthase activity and lays the groundwork for further understanding of this complex biosynthetic pathway.
$H$-product and $H$-threshold graphs
Creators: name: Skums, Pavel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C60, 05C75, 05C76

description: This paper is the continuation of the research of the author and his colleagues of the {\it canonical} decomposition of graphs. The idea of the canonical decomposition is to define the binary operation on the set of graphs and to represent the graph under study as a product of prime elements with respect to this operation. We consider the graph together with the arbitrary partition of its vertex set into $n$ subsets ($n$-partitioned graph). On the set of $n$-partitioned graphs distinguished up to isomorphism we consider the binary algebraic operation $\circ_H$ ($H$-product of graphs), determined by the digraph $H$. It is proved, that every operation $\circ_H$ defines the unique factorization as a product of prime factors. We define $H$-threshold graphs as graphs, which could be represented as the product $\circ_{H}$ of one-vertex factors, and the threshold-width of the graph $G$ as the minimum size of $H$ such, that $G$ is $H$-threshold. $H$-threshold graphs generalize the classes of threshold graphs and difference graphs and extend their properties. We show, that the threshold-width is defined for all graphs, and give the characterization of graphs with fixed threshold-width. We study in detail the graphs with threshold-widths 1 and 2.
Investigation of the Prompt SNe Ia progenitor nature through the analysis of the chemical composition of globular clusters and circumgalactic clouds
Creators: name: Acharova, Irina A.
name: Sharina, Margarita E.
name: Kazakov, Egor A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A method is proposed for determining the properties of type Ia supernovae from short-lived precursors -- Prompt SNIa. This method is based on the assumption that this subtype of type Ia supernovae exploded into low-metallicity globular clusters (GCs), and is responsible for the enrichment of the high-metallicity subgroup of GCs and circumgalactic clouds (CGCs) with the iron peak elements. We justify that CGCs are the formation places of GCs of both subgroups. The accuracy of the method depends, first, on the number of GCs, the spectra of which have been studied in detail; second, on the number of chemical elements, the abundances of which have been worked out. Only those elements are of interest for this method that are produced in supernova explosions and are not produced at the previous stage of the stellar evolution. Our estimates of nucleosynthesis in low-metallicity supernova GCs are in the best agreement with the following Prompt SNIa model: Single Degenerate Pure Deflagration Models of white dwarfs (WDs) burning with masses in the range from 1.30 Msun to 1.31 Msun if carbon explodes in the centre of a WD with a low central density from 0.5*10^9 g/cm^3 to 10^9 g/cm^3.
description: 16 pages, 6 figures accepted for publication in Monthly Notices of the Royal Astronomical Society Main Journal
Lipschitz and path isometric embeddings of metric spaces
Creators: name: Donne, Enrico Le
Publisher: name: arXiv
Year: 2010
Subjects: subject: Metric Geometry (math.MG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 30L05, 53C17, 26A16

description: We prove that each sub-Riemannian manifold can be embedded in some Euclidean space preserving the length of all the curves in the manifold. The result is an extension of Nash $C^1$ Embedding Theorem. For more general metric spaces the same result is false, e.g., for Finsler non-Riemannian manifolds. However, we also show that any metric space of finite packing dimension can be embedded in some Euclidean space via a Lipschitz map.
description: 19 pages, in Theorem 2.9 the packing dimension replaces the Hausdorff dimension, final version
Cortisol synchrony in older couples : links with differential contexts, individual characteristics, and long-term outcomes
Creators: name: Pauly, Theresa
Publisher: name: University of British Columbia
Year: 2020

description: For a lot of older adults, the relationship with a significant other is a fundamental social context that structures their daily life and interactions. This research program investigated everyday interpersonal physiological dynamics that may contribute to intertwined health trajectories in old age. In particular, it focused on interconnected fluctuations of the stress hormone cortisol (cortisol synchrony) because dysregulated cortisol secretion has been linked with significant health risks. It utilized three samples of older adult couples (N = 322 couples), who provided multiple salivary cortisol samples and concurrent electronic assessments for a 7-day period, as they went about their daily lives. Study 1 aimed to illuminate daily life situations (proximal contexts) and pertinent individual differences that may be associated with more pronounced cortisol synchrony in older couples. Cortisol synchrony was higher in moments when the partner was present and when individuals reported prior positive socio-emotional partner interactions. Furthermore, greater self-reported perspective taking tended to be linked with greater cortisol synchrony. Building on these findings, Study 2 aimed to better understand long-term risks and benefits of being ‘in sync’. Among wives, higher cortisol synchrony was associated with a stronger increase in relationship satisfaction but also a stronger increase in cardiovascular risk over time, as indexed by non-high density lipoprotein (HDL) cholesterol levels. For husbands, higher cortisol synchrony was not significantly associated with changes in relationship satisfaction or non-HDL cholesterol levels over time, but it was linked with higher initial non-HDL cholesterol levels. Study 3 adopted a macro perspective, taking a step back to examine broader socio-political correlates of cortisol synchrony in older couples. The extent of cortisol synchrony was moderated by macro-context, such that couples living in a German federal state that was placed further right on the left-right political ideological spectrum exhibited greater cortisol synchrony. This line of research emphasizes that older romantic partners are deeply intertwined in daily processes relevant for health. It unpacks key proximal and distal correlates of everyday cortisol synchrony, identifies individual differences relevant to such dynamics, and points to potential adaptive and maladaptive long-term implications of cortisol synchrony for relationship functioning and health.
When Leaving the Solar System: Dark Matter Makes a Difference
Creators: name: Belbruno, Edward
name: Green, James
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A resultant gravitational force due to the current estimates of the virial mass of the Milky Way galaxy, dominated by dark matter, is estimated near the Sun and is described in two different analytical models yielding consistent results. One is a two-step Hernquist model, the other is a Navarro-Frenk-White model. The effect of this force is estimated on trajectories for spacecraft sufficiently far from the Sun. The difficulty of detecting this force is studied. It is concluded that its effect should be considered for certain spacecraft missions. Its effect on the Pioneer and New Horizons spacecrafts is discussed. A future mission is discussed that may be able to detect this force. Implications of this force are discussed with its impact for problems in planetary astronomy and astrophysics.
description: 11 pages, 2 figures
Local quenches in frustrated quantum spin chains: global vs. subsystem equilibration
Creators: name: Diez, Mathias
name: Chancellor, Nicholas
name: Haas, Stephan
name: Venuti, Lorenzo Campos
name: Zanardi, Paolo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the equilibration behavior following local quenches, using frustrated quantum spin chains as an example of interacting closed quantum systems. Specifically, we examine the statistics of the time series of the Loschmidt echo, the trace distance of the time-evolved local density matrix to its average state, and the local magnetization. Depending on the quench parameters, the equilibration statistics of these quantities show features of good or poor equilibration, indicated by Gaussian, exponential or bistable distribution functions. These universal functions provide valuable tools to characterize the various time-evolution responses and give insight into the plethora of equilibration phenomena in complex quantum systems.
description: 8 pages, 9 figures
Inhomogeneous Metal Distribution in the Intra-Cluster Medium
Creators: name: Lovisari, L.
name: Schindler, S.
name: Kapferer, W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The hot gas that fills the space between galaxies in clusters is rich in metals. In their large potential wells, galaxy clusters accumulate metals over the whole cluster history and hence they retain important information on cluster formation and evolution. We use a sample of 5 cool core clusters to study the distribution of metals in the ICM. We investigate whether the X-ray observations yield good estimates for the metal mass and whether the heavy elements abundances are consistent with a certain relative fraction of SN Ia to SNCC. We derive detailed metallicity maps of the clusters from XMM - Newton observations and we use them as a measure for the metal mass in the ICM. We determine radial profiles for several elements and using population synthesis and chemical enrichment models, we study the agreement between the measured abundances and the theoretical yields. We show that even in relaxed clusters the distribution of metals show a lot of inhomogeneities. Using metal maps usually gives a metal mass 10-30% higher than the metal mass computed using a single extraction region, hence it is expected that most previous metal mass determination have underestimated metal mass. The abundance ratio of α-elements to Fe, even in the central parts of clusters, are consistent with an enrichment due to the combination of SN Ia and SNCC.
First CH$_{3}$D detection in Class 0/I proto-brown dwarfs: constraints on CH$_{4}$ abundances
Creators: name: Riaz, B.
name: Thi, W. -F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the first detection in the ${\it J}_{\it K}$ = 1$_{0}$ - 0$_{0}$ rotational transition line of CH$_{3}$D towards three Class 0/I proto-brown dwarfs (proto-BDs) from IRAM 30 m observations. Assuming a rotational temperature of 25 K, the CH$_{3}$D abundances (relative to H$_{2}$) are in the range of (2.3--14.5) $\times$ 10$^{-7}$. The CH$_{4}$ abundances derived from the CH$_{3}$D abundances and assuming the DCO$^+$/HCO$^+$ ratios are in the range of (0.05--4.8) $\times $10$^{-5}$. The gas-phase formation of CH$_{3}$D via CH$_2$D$^+$ is enhanced at high densities of 10$^{8}$--10$^{10}$ cm$^{-3}$ and our observations are likely probing the innermost dense and warm regions in proto-BDs. Thermal and/or non-thermal desorption can return the CH$_{3}$D and CH$_{4}$ molecules formed at an early stage on grain surfaces to the gas-phase. The gas phase abundances are indicative of warm carbon-chain chemistry in proto-BDs where carbon-chain molecules are synthesized in a lukewarm ($\sim$20-30 K) region close to the central source.
description: Accepted in MNRAS Letters
A Principal Component Analysis of polycyclic aromatic hydrocarbon emission in NGC 7023
Creators: name: Sidhu, Ameek
name: Bazely, Josh
name: Peeters, Els
name: Cami, Jan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We carried out a principal component analysis (PCA) of the fluxes of five polycyclic aromatic hydrocarbon (PAH) bands at 6.2, 7.7, 8.6, 11.0, and 11.2 $μ$m in the reflection nebula NGC 7023 comprising of the photodissociation region (PDR) and a cavity. We find that only two principal components (PCs) are required to explain the majority of the observed variance in PAH fluxes (98 %). The first PC ($PC_{1}$), which is the primary driver of the variance, represents the total PAH emission. The second PC ($PC_{2}$) is related to the ionization state of PAHs across the nebula. This is consistent with the results of a similar analysis of the PAH emission in NGC 2023. The biplots and the correlations of PCs with the various PAH ratios show that there are two subsets of ionic bands with the 6.2 and 7.7 $μ$m bands forming one subset and the 8.6 and 11.0 $μ$m bands the other. However, the distinction between these subsets is only present in the PDR. We have also carried out a separate PCA analysis of the PAH fluxes, this time only considering variations in the cavity. This shows that in the cavity, $PC_{2}$ is not related to the charge state of PAHs, but possibly to structural molecular changes.
description: 15 pages, 12 figures, accepted for publication in MNRAS
Spin-orbit interaction from low-symmetry localized defects in semiconductors
Creators: name: Chalaev, Oleg
name: Vignale, G.
name: Flatté, Michael E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The presence of low-symmetry impurities or defect complexes in the zinc-blende direct-gap semiconductors (e.g. interstitials, DX-centers) results in a novel spin-orbit term in the effective Hamiltonian for the conduction band. The new extrinsic spin-orbit interaction is proportional to the matrix element of the defect potential between the conduction and the valence bands. Because this interaction arises already in the first order of the expansion of the effective Hamiltonian in powers of Uext/Eg << 1 (where Uext is the pseudopotential of an interstitial atom, and Eg is the band gap), its contribution to the spin relaxation rate may exceed that of the previously studied extrinsic contributions, even for moderate concentrations of impurities.
description: extended version, 5+ pages
Deuterium chemistry and D/H ratios in Class 0/I proto-brown dwarfs
Creators: name: Riaz, B.
name: Thi, W. -F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have conducted the first extensive observational survey of several deuterated species in 16 Class 0/I proto-brown dwarfs (proto-BDs) and 4 Class Flat/Class II brown dwarfs. Observations were obtained with the IRAM 30m telescope in the DCO$^{+}$ (3-2), DCN (3-2), DNC (3-2), and N$_{2}$D$^{+}$ (3-2) lines. The DCO$^{+}$/H$^{13}$CO$^{+}$, DCN/H$^{13}$CN, and DNC/HN$^{13}$C ratios are comparatively higher and show a narrower range than the DCO$^{+}$/HCO$^{+}$, DCN/HCN, and DNC/HNC ratios, respectively. The mean D/H ratios for the proto-BDs derived from these molecules are in the range of $\sim$0.02-3. Both low-temperature gas-phase ion-molecule deuteron transfer and grain surface reactions are required to explain the enhanced deuterium fractionation. The very dense and cold ($n_{H_{2}}$ $\geq$10$^{6}$ cm$^{-3}$, T $\leq$10 K) interior of the proto-BDs provide the suitable conditions for efficient deuterium fractionation in these cores. There is no correlation between the D/H ratios and the CO depletion factor, with the exception of the DCN/HCN ratios that show a strong anti-correlation possibly due to the difference in the peak emitting regions of the DCN and HCN molecules. Over a wide range in the bolometric luminosities spanning $\sim$0.002--40 L$_{\odot}$, we find a trend of higher DCO$^{+}$/HCO$^{+}$ (r = -0.7) and DCN/HCN (r = -0.6) ratios, nearly constant DNC/HNC (r = -0.4) and DNC/HN$^{13}$C (r = -0.1) ratios, lower N$_{2}$D$^{+}$/N$_{2}$H$^{+}$ ratios (r = 0.6) in the proto-BDs compared to protostars. Only one Class II brown dwarf shows emission in the DCO$^{+}$ (3-2) line. No correlation is seen between the D/H ratios and the evolutionary stage.
description: Accepted in MNRAS
Anomalous spin-resolved point-contact transmission of holes due to cubic Rashba spin-orbit coupling
Creators: name: Chesi, Stefano
name: Giuliani, Gabriele F.
name: Rokhinson, L. P.
name: Pfeiffer, L. N.
name: West, K. W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Evidence is presented for the finite wave vector crossing of the two lowest one-dimensional spin-split subbands in quantum point contacts fabricated from two-dimensional hole gases with strong spin-orbit interaction. This phenomenon offers an elegant explanation for the anomalous sign of the spin polarization filtered by a point contact, as observed in magnetic focusing experiments. Anticrossing is introduced by a magnetic field parallel to the channel or an asymmetric potential transverse to it. Controlling the magnitude of the spin-splitting affords a novel mechanism for inverting the sign of the spin polarization.
description: 4 pages, 3 figures
Holomorphic Cartan geometries and rational curves
Creators: name: Biswas, Indranil
name: McKay, Benjamin
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 53C55 (Primary), 53C51, 53C56, 53A55 (Secondary)

description: We prove that any compact Kähler manifold bearing a holomorphic Cartan geometry contains a rational curve just when the Cartan geometry is inherited from a holomorphic Cartan geometry on a lower dimensional compact Kähler manifold.
description: 29 pages, 0 figures
The political ecology of roads and movement: The Yalburt Yaylası Archaeological Landscape Research Project 2018 Season
Creators: name: Harmansah, Omur
name: Johnson, Peri
Publisher: name: University of Illinois at Chicago
Year: 2023
Subjects: Uncategorized

description: This third volume in the Archaeology of Anatolia series offers reports on the most recent discoveries from across the Anatolian peninsula.
A Mapping Survey of Dense Clumps Associated with Embedded Clusters II : Can Clump-Clump Collisions Induce Stellar Clusters?
Creators: name: HIGUCHI, Aya E.
name: KURONO, Yasutaka
name: SAITO, Masao
name: KAWABE, Ryohei
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the H13CO+(1-0) survey observations toward embedded clusters obtained using the Nobeyama 45m telescope, which were performed to follow up our previous study in the C18O survey with a dense gas tracer. Our aim is to address the evolution of cluster-forming clumps. We observed the same 14 clusters in C18O, which are located at distances from 0.3-2.1kpc with 27" resolution in H13CO+. We detected the 13 clumps in H13CO+ line emission and obtained the physical parameters of the clumps with radii of 0.24-0.75pc, masses of 100-1400Msun, and velocity widths in FWHM of 1.5-4.0kms^-1. The mean density is 3.9x10^4cm^-3 and the equivalent Jeans length is 0.13pc at 20K. We classified the H13CO+ clumps into three types, Type A, B, and C according to the relative locations of the H13CO+ clumps and the clusters. Our classification represents an evolutionary trend of cluster-forming clumps because dense clumps are expected to be converted into stellar constituents, or dispersed by stellar activities. We found a similar but clearer trend than our previous results for derived star formation efficiencies to increase from Type A to C in the H13CO+ data, and for the dense gas regions within the clumps traced by H13CO+ to be sensitive to the physical evolution of clump-cluster systems. In addition, we found that four out of 13 H13CO+ clumps which we named DVSOs(Distinct Velocity Structure Objects) have distinct velocity gradients at the central parts of them. Assuming that the velocity gradients represent the rigid-like rotation of the clumps, we calculated the virial parameter of the H13CO+ clumps by taking into account the contribution of rotation, and found that the DVSOs tend to be gravitationally unbound. In order to explain the above physical properties for DVSOs, we propose a clump-clump collision model as a possible mechanism for triggering formation of clusters.
description: 33pages, 11figures, accepted to ApJ
Supersolid-like solitons in spin-orbit coupled spin-2 condensate
Creators: name: Kaur, Pardeep
name: Gautam, Sandeep
name: Adhikari, S. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study supersolid-like crystalline structures emerging in the stationary states of a quasi-two-dimensional spin-orbit (SO)-coupled spin-2 condensate in the ferromagnetic, cyclic, and antiferro-magnetic phases by solving a mean-field model.Interplay of different strengths of SO coupling and interatomic interactions gives rise to a variety of non-trivial density patterns in the emergent solutions. For small SO-coupling strengths $γ$ ($γ\approx 0.5$), the ground state is an axisymmetric multi-ring soliton for polar, cyclic and weakly-ferromagnetic interactions, whereas for stronger-ferromagnetic interactions a circularly-asymmetric soliton emerges as the ground state.Depending on the values of interaction parameters, with an increase in SO-coupling strength, a stripe phase may also emerge as the ground state for polar and cyclic interactions. For intermediate values of SO-coupling strength ($γ\approx 1$), in addition to these solitons, one could have a quasi-degenerate triangular-lattice soliton in all magnetic phases. On further increasing the SO-coupling strength ($γ\gtrapprox 4$), a square-lattice and a superstripe soliton emerge as quasi-degenerate states. The emergence of all these solitons can be inferred from a study of solutions of the single-particle Hamiltonian.
Determination of energy scales in few-electron double quantum dots
Creators: name: Taubert, D.
name: Schuh, D.
name: Wegscheider, W.
name: Ludwig, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The capacitive couplings between gate-defined quantum dots and their gates vary considerably as a function of applied gate voltages. The conversion between gate voltages and the relevant energy scales is usually performed in a regime of rather symmetric dot-lead tunnel couplings strong enough to allow direct transport measurements. Unfortunately this standard procedure fails for weak and possibly asymmetric tunnel couplings, often the case in realistic devices. We have developed methods to determine the gate voltage to energy conversion accurately in the different regimes of dot-lead tunnel couplings and demonstrate strong variations of the conversion factors. Our concepts can easily be extended to triple quantum dots or even larger arrays.
description: 7 pages, 6 figures
Passerella ciclopedonale sul fiume Brenno
Creators: name: Tedde, Loris
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2022

description: L’attuale percorso ciclabile nazionale no. 3 interessa nei dintorni del Comune di Biasca, la strada Cantonale e il centro abitato di Biasca. La nuova passerella, oggetto di questo progetto, vuole essere parte di un percorso alternativo più diretto ed esente da interazioni con strade trafficate, in modo da creare un percorso sicuro, confortevole e funzionale.
Nonergodic Brownian oscillator
Creators: name: Plyukhin, Alex V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider an open (Brownian) classical harmonic oscillator in contact with a non-Markovian thermal bath and described by the generalized Langevin equation. When the bath's spectrum has a finite upper cutoff frequency, the oscillator may have ergodic and nonergodic configurations. In ergodic configurations (when exist, they correspond to lower oscillator frequencies) the oscillator demonstrates conventional relaxation to thermal equilibrium with the bath. In nonergodic configurations (which correspond to higher oscillator frequencies) the oscillator in general does not thermalize, but relaxes to periodically correlated (cyclostationary) states whose statistics vary periodically in time. For a specific dissipation kernel in the Langevin equation, we evaluate explicitly relevant relaxation functions, which describe the evolution of mean values and time correlations. When the oscillator frequency is switched from a lower value to higher one, the oscillator may show parametric ergodic to nonergodic transitions with equilibrium initial and cyclostationary final states. These transitions are shown to resemble phase transitions of the second kind.
Metallicity of M dwarfs: the link to exoplanets
Creators: name: Neves, V.
name: Bonfils, X.
name: Santos, N. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The determination of the stellar parameters of M dwarfs is of prime importance in the fields of galactic, stellar and planetary astronomy. M stars are the least studied galactic component regarding their fundamental parameters. Yet, they are the most numerous stars in the galaxy and contribute to most of its total (baryonic) mass. In particular, we are interested in their metallicity in order to study the star-planet connection and to refine the planetary parameters. As a preliminary result we present a test of the metallicity calibrations of Bonfils et al. (2005), Johnson & Apps (2009), and Schlaufman & Laughlin (2010) using a new sample of 17 binaries with precise V band photometry.
description: 2 pages, 1 figure, to appear in the Proceedings of the IAU Symposium 276,2011: The Astrophysics of Planetary Systems: Formation, Structure, and Dynamical Evolution, ed. A. Sozzetti, M. Lattanzi, and A. Boss, Cambridge University Press
title: ÐÐµÑÐ¾Ð´Ñ Ð³Ð»ÑÐ±Ð¾ÐºÐ¾Ð³Ð¾ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ñ ÑÐ°ÑÑÐ¸ÑÐ½ÑÐ¼ Ð¿ÑÐ¸Ð²Ð»ÐµÑÐµÐ½Ð¸ÐµÐ¼ ÑÑÐ¸ÑÐµÐ»Ñ Ð´Ð»Ñ ÑÐµÐ³Ð¼ÐµÐ½ÑÐ°ÑÐ¸Ð¸ Ð¼ÐµÐ´Ð¸ÑÐ¸Ð½ÑÐºÐ¸Ñ Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ð¹
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Semi-Supervised learning for medical image segmentation
Creators: name: ÐÐ¾Ñ, ÐÐ¸ÑÐ°Ð¸Ð»
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð½ÐµÐ¹ÑÐ¾Ð½Ð½ÑÐµ ÑÐµÑÐ¸
Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÐ´Ð¸ÑÐ¸Ð½ÑÐºÐ¸Ñ Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ð¹
Ð¼Ð°ÑÐ¸Ð½Ð½Ð¾Ðµ Ð¾Ð±ÑÑÐµÐ½Ð¸Ðµ
neural networks
medical imaging
machine learning

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¾Ð¿Ð¸ÑÐ°Ð½ Ð¼ÐµÑÐ¾Ð´ Ð³Ð»ÑÐ±Ð¾ÐºÐ¾Ð³Ð¾ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ñ ÑÐ°ÑÑÐ¸ÑÐ½ÑÐ¼ Ð¿ÑÐ¸Ð²Ð»ÐµÑÐµÐ½Ð¸ÐµÐ¼ ÑÑÐ¸ÑÐµÐ»Ñ Ð´Ð»Ñ ÑÐµÐ³Ð¼ÐµÐ½ÑÐ°ÑÐ¸Ð¸ Ð¼ÐµÐ´Ð¸ÑÐ¸Ð½ÑÐºÐ¸Ñ Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ð¹. ÐÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð´Ð»Ñ ÑÐ¸Ð½ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð´Ð°Ð½Ð½ÑÑ Ð¸ Ð¼ÐµÐ´Ð¸ÑÐ¸Ð½ÑÐºÐ¸Ñ Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ð¹, Ð´Ð¾ÐºÐ°Ð·ÑÐ²Ð°ÑÑÐ¸Ðµ ÐµÐ³Ð¾ Ð¿ÑÐ¸Ð¼ÐµÐ½Ð¸Ð¼Ð¾ÑÑÑ Ð´Ð»Ñ Ð·Ð°Ð´Ð°ÑÐ¸ ÑÐµÐ³Ð¼ÐµÐ½ÑÐ°ÑÐ¸Ð¸ Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ð¹ Ð¿Ð°ÑÐ¾Ð»Ð¾Ð³Ð¸Ð¹.
description: This paper describes a semi-supervised learning approach based on convolutional neural networks for medical image segmentation. Presented results for both synthetic data and medical images which proves the applicability of the suggested method to the problem of pathology image segmentation.
Ta2NiSe5: a candidate topological excitonic insulator with multiple band inversions
Creators: name: Ma, Xiaobo
name: Wang, Guangwei
name: Mao, Huican
name: Yuan, Zhihong
name: Yu, Tianye
name: Liu, Rui
name: Peng, Yiran
name: Zheng, Pengyu
name: Yin, Zhiping
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The electronic structures and topological properties of the orthorhombic and monoclinic phases of the quasi-one-dimensional excitonic insulator Ta2NiSe5 are investigated based on density functional theory. In contrast to a single parity or band inversion across the Fermi level in many topological insulators studied previously, there are multiple parity and band inversions with or without spin-orbit coupling in both phases of Ta2NiSe5, resulting in more complex and topologically nontrivial electronic structures. The Dirac cone type surface states of the low-temperature monoclinic phase are also obtained. In this paper, we demonstrate that Ta2NiSe5 is a promising candidate as a three-dimensional topological excitonic insulator.
description: 28 pages, 11 figures