cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The TexOx-1000 redshift survey of radio sources I: the TOOT00 region
Creators: name: Vardoulaki, Eleni
name: Rawlings, Steve
name: Hill, Gary J.
name: Mauch, Tom
name: Inskip, Katherine J.
name: Riley, Julia
name: Brand, Kate
name: Croft, Steve
name: Willott, Chris J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present optical spectroscopy, near-infrared (mostly K-band) and radio (151-MHz and 1.4-GHz) imaging of the first complete region (TOOT00) of the TexOx-1000 (TOOT) redshift survey of radio sources. The 0.0015-sr (~ 5 deg^2) TOOT00 region is selected from pointed observations of the Cambridge Low-Frequency Survey Telescope at 151 MHz at a flux density limit of ~= 100 mJy, ~ 5-times fainter than the 7C Redshift Survey (7CRS), and contains 47 radio sources. We have obtained 40 spectroscopic redshifts (~ 85% completeness). Adding redshifts estimated for the 7 other cases yields a median redshift z_med ~ 1.25. We find a significant population of objects with FRI-like radio structures at radio luminosities above both the low-redshift FRI/II break and the break in the radio luminosity function. The redshift distribution and sub-populations of TOOT00 are broadly consistent with extrapolations from the 7CRS/6CE/3CRR datasets underlying the SKADS Simulated Skies Semi-Empirical Extragalactic Database, S^3-SEX.
description: Accepted for publication in MNRAS; 59 pages, 10 figures, 6 tables
title: Ð¢ÐµÐ¾ÑÐ¸Ð¸ ÑÐ¸ÑÑÐµÐ¼ Ð¸ ÑÐ¸ÑÑÐµÐ¼Ð½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð·: Ð¸ÑÑÐ¾ÐºÐ¸ Ð¸ Ð¿ÐµÑÑÐ¿ÐµÐºÑÐ¸Ð²Ñ
title: System theory and system analysis: origins and perspectives
Creators: name: ÐÐ°ÑÐ¸Ð»ÑÐµÐ², Ð®ÑÐ¸Ð¹
name: ÐÐ¾Ð»ÐºÐ¾Ð²Ð°, ÐÐ¸Ð¾Ð»ÐµÑÑÐ°
name: ÐÐ¾Ð·Ð»Ð¾Ð², ÐÐ»Ð°Ð´Ð¸Ð¼Ð¸Ñ
name: "Ð¡Ð¸ÑÑÐµÐ¼Ð½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð· Ð² Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ð¸ Ð¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¸", Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð°Ñ Ð½Ð°ÑÑÐ½Ð°Ñ Ð¸ ÑÑÐµÐ±Ð½Ð¾-Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ°Ñ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ñ (25; 2021; Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³)
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2021
Subjects: Ð¡Ð¸ÑÑÐµÐ¼Ð½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð·
Ð¡Ð»Ð¾Ð¶Ð½ÑÐµ ÑÐ¸ÑÑÐµÐ¼Ñ
Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¿Ð¾Ð´Ñ Ð¾Ð´
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ÑÐ½ÑÑÐ¾Ð¿Ð¸Ð¹Ð½Ð¾-Ð½ÐµÐ³ÑÐ½ÑÑÐ¾Ð¿Ð¸Ð¹Ð½ÑÐµ Ð¿ÑÐ¾ÑÐµÑÑÑ

description: Ð ÑÑÐ°ÑÑÐµ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð¸Ñ ÑÐµÐ¾ÑÐ¸Ð¸ ÑÐ¸ÑÑÐµÐ¼, ÐµÐµ Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ¾Ð², Ð¿ÑÐ¸ÐºÐ»Ð°Ð´Ð½ÑÑ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¹ Ð¸ Ð¿ÐµÑÑÐ¿ÐµÐºÑÐ¸Ð² ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ. Ð¡Ð¸ÑÑÐµÐ¼Ð½ÑÐµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð²Ð¾Ð·Ð½Ð¸ÐºÐ°Ð»Ð¸ Ð¿Ð¾ÑÑÐµÐ¿ÐµÐ½Ð½Ð¾, Ð½Ð°ÑÐ¸Ð½Ð°Ñ Ñ Ð´ÑÐµÐ²Ð½ÐµÐ³ÑÐµÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿ÐµÑÐ¸Ð¾Ð´Ð°, Ð¸ Ð² Ð¿Ð¾ÑÐ»ÐµÐ´ÑÑÑÐµÐ¼ Ð½Ð°ÑÐ¸Ð½Ð°Ð»Ð¸ ÑÐ°Ð·Ð²Ð¸Ð²Ð°ÑÑÑÑ Ð¸Ð· ÑÐ°Ð·Ð½ÑÑ Ð¸ÑÑÐ¾ÐºÐ¾Ð² â Ð¸Ð· ÑÐ¸Ð»Ð¾ÑÐ¾ÑÐ¸Ð¸, Ð±Ð¸Ð¾Ð»Ð¾Ð³Ð¸Ð¸, Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÐºÐ¸ Ð¸ Ñ. Ð¿. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¸ÑÑÐ¾ÑÐ¸Ð¸ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÐºÐ¾Ð½ÑÐµÐ¿ÑÐ¸Ð¹ ÑÐµÐ¾ÑÐ¸Ð¸ ÑÐ¸ÑÑÐµÐ¼ Ð´ÐµÐ»Ð°ÐµÑÑÑ Ð²ÑÐ²Ð¾Ð´ Ð¾ ÑÐ¾Ð¼. ÑÑÐ¾ Ð² ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÑ ÑÑÐ»Ð¾Ð²Ð¸ÑÑ Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ñ ÑÐ¼ÐµÑÐ´Ð¶ÐµÐ½ÑÐ½ÑÑ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¹ Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾ Ð´Ð°Ð»ÑÐ½ÐµÐ¹ÑÐµÐµ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ðµ ÑÐµÐ¾ÑÐ¸Ð¸ ÑÐ¸ÑÑÐµÐ¼, Ð¿ÐµÑÐµÐ¾ÑÐ¼ÑÑÐ»ÐµÐ½Ð¸Ðµ Ð¾ÑÐºÑÑÑÐ¾Ð³Ð¾ Ð. Ð¤Ð¾Ð½ ÐÐµÑÑÐ°Ð»Ð°Ð½ÑÐ¸ Ð·Ð°ÐºÐ¾Ð½Ð°, Ð¿ÑÐ¾ÑÐ¸Ð²Ð¾Ð¿Ð¾Ð»Ð¾Ð¶Ð½Ð¾Ð³Ð¾ Ð²ÑÐ¾ÑÐ¾Ð¼Ñ Ð½Ð°ÑÐ°Ð»Ñ ÑÐµÑÐ¼Ð¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ¸, ÐºÐ¾Ð½ÑÐµÐ¿ÑÐ¸Ð¸ Ð¿Ð¾Ð´Ð²Ð¸Ð¶Ð½Ð¾Ð³Ð¾ ÑÐ°Ð²Ð½Ð¾Ð²ÐµÑÐ¸Ñ Ð.Ð. ÐÐ¾Ð³Ð´Ð°Ð½Ð¾Ð²Ð°, Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ð¸Ð°Ð»ÑÐ½Ð¾Ð¹ Ð½ÐµÑÐ°Ð²Ð½Ð¾Ð²ÐµÑÐ½Ð¾ÑÑÐ¸ Ð­. ÐÐ°ÑÑÑÐ°, ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹, Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð½ÑÑ Ð½Ð° Ð´Ð¸Ð°Ð»ÐµÐºÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð»Ð¾Ð³Ð¸ÐºÐµ Ð¸ ÑÐµÐ¾ÑÐ¸Ð¸ Ð½ÐµÐ»Ð¸Ð½ÐµÐ¹Ð½Ð¾Ð¹ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ¸.
description: The article analyzes the formation of systems theory, its variants, applied directions and development prospects. Systemic representations arose gradually, starting from the ancient Greek period, and subsequently began to develop from different origins â from philosophy, biology, mathematics, etc. Based on the analysis of the history of the development of the basic concepts of systems theory, the conclusion is drawn that. that in modern conditions of introduction of emergent technologies, further development of systems theory is necessary, rethinking of the law discovered by L. von Bertalanffy, opposite to the second law of thermodynamics, the concept of moving equilibrium by A.A. Bogdanov, the principle disequilibrium of E. Bauer, development of models based on dialectical logic and the theory of nonlinear dynamics.
title: Blocking the chain
title: Konzernmacht und Big-Data-Plattformen im globalen Ernährungssystem
titleType: Subtitle
Creators: name: Mooney, Pat
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: Konzernmacht
subject: Big-Data-Plattformen
subject: Ernährungssystem
subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::300 Sozialwissenschaften
subject: 300 Sozialwissenschaften::320 Politikwissenschaft::320 Politikwissenschaft

description: Smart Farming, Drohnen, per Satellit gesteuerte Traktoren, die Nutzung von Klima- und Wetterdaten durch Big Data oder die Anwendung von synthetischer Biologie: Ist die Digitalisierung von Landwirtschaft und Ernährung tatsächlich das neue Wundermittel, um Hungerkrisen zu beenden, den Verlust an Biodiversität zu stoppen oder den Klimawandel aufzuhalten? Im Policy Paper „Breaking the Chain – Konzernmacht und Big-Data-Plattformen im globalen Ernährungssystem“ setzt sich Pat Mooney, Träger des Alternativen Nobelpreises, kritisch mit der Digitalisierung in der Landwirtschaft auseinander. Er analysiert, wer die zentralen Akteure im Digitalisierungsgeschäft sind und beleuchtet die Bedeutung der Digitalisierung für kleinbäuerliche Erzeuger*innen und Arbeit*innen in Landwirtschaft und Nahrungsmittelindustrie weltweit. Neue Technologien versprechen Effizienzsteigerungen und Nachhaltigkeit bei der Erzeugung. Dabei geht es im Kern um das massenhafte Sammeln und Auswerten von Hof-, Anbau- und Verbraucher*innendaten. Agrarkonzerne wie Bayer und Deere, aber auch Internetkonzerne wie Amazon und Google sind längst dabei, sich die Hoheit über die Digitalisierung der Landwirtschaft anzueignen. Durch Fusionsprozesse konsolidieren sie ihre Dominanz nicht nur in einem Sektor, sondern vertikal entlang mehrerer Schnittstellen der Lebensmittelkette. Ihre Bemühungen werden durch politische Entscheidungsträger*innen in Deutschland und anderswo unterstützt, die vor allem die Vorteile der Digitalisierung betonen und Investitionshemmnisse aus dem Weg räumen wollen. Mooney zeigt die problematischen Auswirkungen dieser Tendenzen ebenso wie die Grenzen der Digitalisierung auf und diskutiert, inwieweit die Digitalisierung für den Umbau hin zu einer sozial-ökologisch gerechten Landwirtschaft genutzt werden könnte. Die Studie „Breaking the Chain – Konzernmacht und Big-Data-Plattformen im globalen Ernährungssystem“ ist eine gemeinsame Publikation von ETC Group, GLOCON, INKOTA und der Rosa-Luxemburg-Stiftung.
Reversible hypoglycemic encephalopathy
Creators: name: GHODASARA, CHIRAG
Publisher: name: EURORAD
Year: 2014
Subjects: subject: Neuroradiology brain
subject: MR
subject: Diagnostic procedure
subject: Metabolic disorders

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: male, 55 years
description: Clinical History: Patient presented with sudden unconsciousness and right sided weakness in morning. Patient was diabetic and patient had taken oral hypoglycemic drugs in night. In emergency department , blood sugar was done and it was found very low. Patient became normal... Final Diagnosis: Reversible hypoglycemic encephalopathy
Accurate Fourth-Generation Machine Learning Potentials by Electrostatic Embedding
Creators: name: Ko, Tsz Wai
name: Finkler, Jonas A.
name: Goedecker, Stefan
name: Behler, Jörg
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: In recent years, significant progress has been made in the development of machine learning potentials (MLPs) for atomistic simulations with applications in many fields from chemistry to materials science. While most current MLPs are based on environment-dependent atomic energies, the limitations of this locality approximation can be overcome, e.g., in fourth-generation MLPs, which incorporate long-range electrostatic interactions based on an equilibrated global charge distribution. Apart from the considered interactions, the quality of MLPs crucially depends on the information available about the system, i.e., the descriptors. In this work we show that including -- in addition to structural information -- the electrostatic potential arising from the charge distribution in the atomic environments significantly improves the quality and transferability of the potentials. Moreover, the extended descriptor allows to overcome current limitations of two- and three-body based feature vectors regarding artificially degenerate atomic environments. The capabilities of such an electrostatically embedded fourth-generation high-dimensional neural network potential (ee4G-HDNNP), which is further augmented by pairwise interactions, are demonstrated for NaCl as a benchmark system. Employing a data set containing only neutral and negatively charged NaCl clusters, even small energy differences between different cluster geometries can be resolved, and the potential shows an impressive transferability to positively charged clusters as well as the melt.
description: 41 pages, 7 figures, accepted
Rare presentation of a common Intracranial Extra-axial cyst
Creators: name: STARLY, BENOY
Publisher: name: EURORAD
Year: 2014
Subjects: subject: Head and neck
subject: MR
subject: MR-Diffusion/Perfusion
subject: Computer Applications-General
subject: Cysts

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 66 years
description: Clinical History: 66 year old lady presenting with complaints of paresthesia in both arms, predominantly on the right side since 6 months. Final Diagnosis: Left parafalcine Arachnoid cyst
title: Ð¤Ð¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÐºÐ°Ð´ÑÐ¾Ð²Ð¾Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐ¸ÐºÐ¸ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: Ð¢ÑÐ·, ÐÐ½Ð½Ð°
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: 2017
Subjects: ÐºÐ°Ð´ÑÐ¾Ð²Ð°Ñ Ð¿Ð¾Ð»Ð¸ÑÐ¸ÐºÐ°
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description: ÐÐ±ÑÐµÐºÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ - ÐÐÐ Â«Ð ÑÑÑÐ¸Ð½Ð°Ð½Ñ ÐÐ°Ð½ÐºÂ». Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ - Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÐºÐ°Ð´ÑÐ¾Ð²Ð¾Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐ¸ÐºÐ¸ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ ÐÐÐ Â«Ð ÑÑÑÐ¸Ð½Ð°Ð½Ñ ÐÐ°Ð½ÐºÂ». ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÑÑÐµÑÑÐ²ÑÑÑÐµÐ¹ ÐºÐ°Ð´ÑÐ¾Ð²Ð¾Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐ¸ÐºÐ¸ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ ÐÐÐ Â«Ð ÑÑÑÐ¸Ð½Ð°Ð½Ñ ÐÐ°Ð½ÐºÂ» Ð²ÑÑÐ²Ð»ÐµÐ½Ñ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð½ÑÐµ ÑÐµÐ½Ð´ÐµÐ½ÑÐ¸Ð¸ Ðº ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ñ Ð² ÑÐ¾ÑÑÐ°Ð²Ðµ Ð¸ ÑÑÑÑÐºÑÑÑÐµ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð°, Ð° ÑÐ°ÐºÐ¶Ðµ Ð² Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐµ ÑÑÑÐ´Ð¾Ð²ÑÑ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÐµÐ¹. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð¾Ð¼ ÐÐÐ Â«Ð ÑÑÑÐ¸Ð½Ð°Ð½Ñ ÐÐ°Ð½ÐºÂ» Ð²ÑÑÐ²Ð»ÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð½ÐµÐ´Ð¾ÑÑÐ°ÑÐºÐ¸ ÐºÐ°Ð´ÑÐ¾Ð²Ð¾Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐ¸ÐºÐ¸. ÐÐ»Ñ ÑÐµÑÐµÐ½Ð¸Ñ Ð¸Ð¼ÐµÑÑÐ¸ÑÑÑ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼ Ð² Ð¾Ð±Ð»Ð°ÑÑÐ¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð¾Ð¼ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ ÑÐ»ÐµÐ´ÑÑÑÐ¸Ðµ 2 Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ñ. ÐÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð° ÑÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ Ð²ÑÑÐ¾ÐºÐ¾ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÐ¼Ð¸ ÐºÐ°Ð´ÑÐ°Ð¼Ð¸, Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ñ ÑÐµÐºÑÑÑÐ¸Ð½Ð³Ð° Ð¸ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ð¸ Ð°Ð´Ð°Ð¿ÑÐ°ÑÐ¸Ð¸ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð°. ÐÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð° ÑÐ¾ÑÑÐ°Ð½ÐµÐ½Ð¸Ñ ÑÑÑÐ´Ð¾Ð²ÑÑ ÑÐµÑÑÑÑÐ¾Ð². Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐ¸ÑÑÐµÐ¼Ñ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÑÐ¸Ð¼ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ ÐºÐ¾ÑÐ¿Ð¾ÑÐ°ÑÐ¸Ð²Ð½Ð¾Ð¹ ÐºÑÐ»ÑÑÑÑÑ ÐÑÐµÐ´Ð»Ð°Ð³Ð°ÐµÐ¼ÑÐµ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ñ ÐÐÐ Â«Ð ÑÑÑÐ¸Ð½Ð°Ð½Ñ ÐÐ°Ð½ÐºÂ» Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑ ÑÐ¾ÐºÑÐ°ÑÐ¸ÑÑ ÑÐµÐºÑÑÐµÑÑÑ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð°, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐ»ÑÑÑÐ¸ÑÑ ÐºÐ°Ð´ÑÐ¾Ð²ÑÑ ÑÐ°Ð±Ð¾ÑÑ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ Ð² ÑÐµÐ»Ð¾Ð¼.
Shapiro effect for for relativistic particles - testing General Relativity in a new window
Creators: name: Kutschera, Marek
name: Zajiczek, Wieslaw
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Propagation of relativistic particles in the Schwarzschild gravitational field is studied. Particles emitted radially outward with speed at infinity exceeding c/2^0.5 are observed to be accelerated in the gravitational field by a distant observer. This is the Shapiro effect for relativistic particles. Slower particles are decelerated, as in Newtonian gravity. A speed-dependent potential for relativistic particles corresponding to the speed measured in terms of the coordinate time is derived to be $V=GM gamma(gamma^2 -2)/r which is repulsive for v>c/2^0.5. The gravitational repulsion could be revealed in satellite experiments with beams of relativistic particles subject to very precise time measurements. Principles of laboratory measurements able to test kinetic energy changes of relativistic particles in the Earth gravitational field are discussed.
title: Ð¤Ð¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¸ Ð¸ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ðµ Ð¼ÐµÑÑÐ½Ð¾Ð³Ð¾ Ð±ÑÐ´Ð¶ÐµÑÐ° (Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÐÐ°Ð»Ð¸Ð½Ð¸Ð½ÑÐºÐ¾Ð³Ð¾ ÑÐ°Ð¹Ð¾Ð½Ð° Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³Ð°)
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
Creators: name: ÐÐ°ÑÐºÐ¾Ð²Ð°, ÐÑÐ¸ÑÑÐ¸Ð½Ð°
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: 2018
Subjects: Ð±ÑÐ´Ð¶ÐµÑÐ½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð°
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description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ Ð±ÑÐ´Ð¶ÐµÑ ÐÐ°Ð»Ð¸Ð½Ð¸Ð½ÑÐºÐ¾Ð³Ð¾ ÑÐ°Ð¹Ð¾Ð½Ð° Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³Ð°.
Ð¦ÐµÐ»ÑÑ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¸Ì ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¸Ì ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¸ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ Ð¸ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð±ÑÐ´Ð¶ÐµÑÐ° ÐÐ°Ð»Ð¸Ð½Ð¸Ð½ÑÐºÐ¾Ð³Ð¾ ÑÐ°Ð¹Ð¾Ð½Ð° Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³Ð°.
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Collective Excitations in the Charge-Ordered Phase of alpha-(BEDT-TTF)2I3
Creators: name: Ivek, T.
name: Korin-Hamzic, B.
name: Milat, O.
name: Tomic, S.
name: Clauss, C.
name: Drichko, N.
name: Schweitzer, D.
name: Dressel, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The charge response of charge-ordered state in the organic conductor alpha-(BEDT-TTF)2I3 is characterized by dc resistivity, dielectric and optical spectroscopy in different crystallographic directions within the two-dimensional conduction layer. Two dielectric modes are detected. The large mode is related to the phason-like excitation of the 2kF bond-charge density wave which forms in the ab plane. The small dielectric mode is associated with the motion of domain-wall pairs along the a- and b-axes between two types of domains which are created due to inversion symmetry breaking.
description: resubmitted to Phys. Rev. Lett.; 4 pages, 3 figures
A Novel Methodology for Task Distribution in Heterogeneous Reconfigurable Computing System
Creators: name: Vucha, Mahendra
Publisher: name: Zenodo
Year: 2055

description: processors acts as computing elements. So, an efficient task distribution methodology is essential for obtaining high performance in modern embedded systems. In this paper, we present a novel methodology for task distribution called Minimum Laxity First (MLF) algorithm that takes the advantage of runtime reconfiguration of FPGA in order to effectively utilize the available resources. The MLF algorithm is a list based dynamic scheduling algorithm that uses attributes of tasks as well computing resources as cost function to distribute the tasks of an application to HRCS. In this paper, an on chip HRCS computing platform is configured on Virtex 5 FPGA using Xilinx EDK. The real time applications JPEG, OFDM transmitters are represented as task graph and then the task are distributed, statically as well dynamically, to the platform HRCS in order to evaluate the performance of the designed task distribution model. Finally, the performance of MLF algorithm is compared with existing static scheduling algorithms. The comparison shows that the MLF algorithm outperforms in terms of efficient utilization of resources on chip and also speedup an application execution.
Periodic Atomic Displacements and Visualization of the Electron-Lattice Interaction in the Cuprate
Creators: name: Du, Zengyi
name: Li, Hui
name: Gu, Genda
name: Pasupathy, Ahbay N.
name: Tranquada, John M.
name: Fujita, Kazuhiro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Traditionally, X-ray scattering techniques have been used to detect the breaking of the structural symmetry of the lattice, which accompanies a periodic displacement of the atoms associated with charge density wave (CDW) formation in the cuprate pseudogap states. Similarly, the Spectroscopic Imaging Scanning Tunneling Microscopy (SI-STM) has visualized the short-range CDW. However, local coupling of electrons to the lattice in the form of a short-range CDW has been a challenge to visualize, thus a link between these measurements has been missing. Here, we introduce a novel STM-based technique to visualize the local bond length variations obtained from topographic imaging with picometer precision. Application of this technique to the high-Tc cuprate superconductor Bi2Sr2CaCu2O8+δ revealed a high-fidelity local lattice distortion of the BiO lattice as large as 2%. In addition, analysis of local breaking of rotational symmetry associated with the bond lengths reveals modulations around four-unit-cell periodicity in both B1 and E representations in the C4v group of the lattice, which coincides with the uni-directional d-symmetry CDW (dCDW) previously identified within the CuO2 planes, thus providing direct evidence of electron-lattice coupling in the pseudogap state and a link between the X-ray scattering and STM measurements. Overall, our results suggest that the periodic lattice displacements in E representations correspond to a locally-frozen version of the soft phonons identified by the X-ray scattering measurements, and a fluctuation of the bond length is reflected by the fluctuation of the dCDW formation near the quantum critical point.
description: Submitted version
Turtles in trouble. Conservation ecology and priorities for Australian freshwater turtles
Creators: name: Petrov, Kristen
name: Sutcliffe, Sarah
name: Truscott, Helen
name: Kutay, Cat
name: Eisemberg, Carla C
name: Spencer, Ricky J
name: Lawler, Ivan
name: Bower, Deborah S
name: Van Dyke, James
name: Georges, Arthur
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 31
subject: Biological sciences
subject: FOS: Biological sciences
classificationCode: 3103
subject: Ecology
classificationCode: 41
subject: Environmental sciences

description: The Australian freshwater turtle fauna is dominated by species in the family Chelidae. The extant fauna comprises a series of distinct lineages, each of considerable antiquity, relicts of a more extensive and perhaps diverse fauna that existed when wetter climes prevailed. Several phylogenetically distinctive species are restricted to single, often small, drainage basins, which presents challenges for their conservation. Specific threats include water resource development, which alters the magnitude, frequency, and timing of flows and converts lentic to lotic habitat via dams and weirs, fragmentation of habitat, sedimentation, nutrification, and a reduction in the frequency and extent of floodplain flooding. Drainage of wetlands and altered land use are of particular concern for some species that are now very restricted in range and critically endangered. The introduced European red fox is a devastatingly efficient predator of turtle nests and can have a major impact on recruitment. In the north, species such as the northern snake-necked turtle are heavily depredated by feral pigs. Other invasive animals and aquatic weeds dramatically alter freshwater habitats, with consequential impacts on freshwater turtles. Novel pathogens such as viruses have brought at least one species to the brink of extinction. Species that routinely migrate across land are impacted by structural simplification of habitat, reduction in availability of terrestrial refugia, fencing (including conservation fencing), and in some areas, by high levels of road mortality. We report on the listing process and challenges for listing freshwater turtles under the Australian Environment Protection and Biodiversity Conservation Act, summarize the state of knowledge relevant to listing decisions, identify the key threatening processes impacting turtles, and identify key knowledge gaps that impede the setting of priorities. We also focus on how to best incorporate First Nations Knowledge into decisions on listing and discuss opportunities to engage Indigenous communities in on-ground work to achieve conservation outcomes.
title: ÐÑÐ²Ð¾Ð´ ÑÐ»ÐµÐ´ÑÑÐ²Ð¸Ð¹ Ñ Ð¿ÑÐµÐ´Ð²Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾ Ð·Ð°Ð´Ð°Ð½Ð½ÑÐ¼Ð¸ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð°Ð¼Ð¸
title: Inference of consequences with predefined properties
Creators: name: ÐÑÐ»Ð¸Ðº, ÐÐ¾ÑÐ¸Ñ
name: "Ð¡Ð¸ÑÑÐµÐ¼Ð½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð· Ð² Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ð¸ Ð¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¸", Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð°Ñ Ð½Ð°ÑÑÐ½Ð°Ñ Ð¸ ÑÑÐµÐ±Ð½Ð¾-Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ°Ñ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ñ (25; 2021; Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³)
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2021
Subjects: ÐÐ°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð»Ð¾Ð³Ð¸ÐºÐ°
Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð²ÑÐ²Ð¾Ð´
Ð¸Ð½ÑÐµÑÐµÑÐ½ÑÐµ ÑÐ»ÐµÐ´ÑÑÐ²Ð¸Ñ
Ð°Ð»Ð³ÐµÐ±ÑÐ° ÐºÐ¾ÑÑÐµÐ¶ÐµÐ¹
Ð¿ÑÐ°Ð²Ð¸Ð»Ð¾ Ð¾Ð±Ð¾Ð±ÑÐµÐ½Ð¸Ñ
Ð¼Ð¸Ð½Ð¸Ð¼Ð°Ð»ÑÐ½Ð¾Ðµ ÑÐ»ÐµÐ´ÑÑÐ²Ð¸Ðµ
Ð¿ÑÐ¾ÐµÐºÑÐ¸Ñ
ÑÐ»Ð¸Ð¼Ð¸Ð½Ð°ÑÐ¸Ñ Ð°ÑÑÐ¸Ð±ÑÑÐ¾Ð²

description: Ð Ð´ÐµÐ´ÑÐºÑÐ¸Ð²Ð½Ð¾Ð¼ Ð°Ð½Ð°Ð»Ð¸Ð·Ðµ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð»Ð¾Ð³Ð¸ÐºÐ¸ Ð°ÐºÑÑÐ°Ð»ÑÐ½Ñ Ð´Ð²Ðµ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð·Ð°Ð´Ð°ÑÐ¸: Ð¿ÑÐ¾Ð²ÐµÑÐºÐ° Ð¿ÑÐ°Ð²Ð¸Ð»ÑÐ½Ð¾ÑÑÐ¸ Ð¿ÑÐµÐ´Ð¿Ð¾Ð»Ð°Ð³Ð°ÐµÐ¼Ð¾Ð³Ð¾ ÑÐ»ÐµÐ´ÑÑÐ²Ð¸Ñ Ð¸ Ð²ÑÐ²Ð¾Ð´ ÑÐ»ÐµÐ´ÑÑÐ²Ð¸Ñ Ñ Ð¿ÑÐµÐ´Ð²Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾ Ð·Ð°Ð´Ð°Ð½Ð½ÑÐ¼Ð¸ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð°Ð¼Ð¸. ÐÑÐ½Ð¾Ð²Ð½Ð¾Ð¹ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð¿Ð¾ÑÐµÐ½ÑÐ¸Ð°Ð» Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð»Ð¾Ð³Ð¸ÐºÐ¸ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½ Ð½Ð° ÑÐµÑÐµÐ½Ð¸Ðµ Ð¿ÐµÑÐ²Ð¾Ð¹ Ð·Ð°Ð´Ð°ÑÐ¸. Ð§ÑÐ¾ ÐºÐ°ÑÐ°ÐµÑÑÑ Ð·Ð°Ð´Ð°ÑÐ¸ Ð¿Ð¾Ð¸ÑÐºÐ° Â«Ð¸Ð½ÑÐµÑÐµÑÐ½ÑÑÂ» ÑÐ»ÐµÐ´ÑÑÐ²Ð¸Ð¹, ÑÐ¾ Ð´Ð»Ñ Ð½ÐµÐµ Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¸ Ð¾ÑÑÑÑÑÑÐ²ÑÑÑ ÐºÐ°ÐºÐ¸Ðµ-Ð»Ð¸Ð±Ð¾ Ð¿Ð¾Ð»ÐµÐ·Ð½ÑÐµ Ð½Ð°ÑÐ°Ð±Ð¾ÑÐºÐ¸. Ð Ð½Ð°ÑÑÐ¾ÑÑÐµÐ¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ Ð¼ÐµÑÐ¾Ð´Ñ ÑÐµÑÐµÐ½Ð¸Ñ Ð·Ð°Ð´Ð°ÑÐ¸ Ð²ÑÑÐ¸ÑÐ»ÐµÐ½Ð¸Ñ ÑÐ»ÐµÐ´ÑÑÐ²Ð¸Ð¹ Ñ Ð·Ð°Ð´Ð°Ð½Ð½ÑÐ¼Ð¸ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð°Ð¼Ð¸ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð°Ð»Ð³ÐµÐ±ÑÑ ÐºÐ¾ÑÑÐµÐ¶ÐµÐ¹.
description: In deductive analysis based on mathematical logic, two main tasks are relevant: checking the correctness of the intended consequence and the conclusion of the consequence with predefined properties. The main theoretical potential of mathematical logic is aimed at solving the first problem. As for the task of finding âinterestingâ consequences, there are practically no useful developments for it. In this paper, we propose methods for solving the problem of calculating consequences with given properties based on the n-tuple algebra.
Phase evolution and properties of a porcelain body fabricated using different rapid firing techniques
Creators: name: Lerdprom, Wirat
Publisher: name: Imperial College London
Year: 2019

description: A porcelain powder was sintered using different rapid sintering techniques including direct sintering (DS), spark plasma sintering (SPS), microwave sintering (MWS), and flash sintering (FS). Densification, phase evolution, and physicomechanical properties of the fully sintered porcelain samples were investigated to improve understanding of the role of particular process parameters. Densification of the porcelains was controlled by liquid phase formation. Study of the DS revealed that formation of liquid glass is rapid even at 780 C/min heating rate, and the porcelain was fully densified within 15 min dwelling at 1175 °C. SPS enhanced densification rate about 10 times greater over that of conventional sintering, starting at 920 C. The dwelling step was negligible due to the rapid flow of the liquid glass filling the pores, assisted by the applied pressure. On using microwave energy, the sintering temperature of the porcelain was reduced by ~75 °C and dwell time from 15 min to 5 min compared to conventional sintering. Formation of the liquid phase was observed at 900-1000 °C and it was the key for the rapid densification because it promoted microwave absorbability. Densification in FS was difficult to resolve, but it could be deduced that by applying an electric potential of 1.5 kV/cm for 30 seconds, large amounts of glassy phase were produced. Various microstructures were observed as a result of the different processing routes. DS and MWS produced a typical porcelain microstructure which is dense but has numbers of residual pores embedded in the glassy phase. SPS produced a highly dense microstructure with a few residual pores assisted by applied pressure. FS, in contrast, produced a nonuniform microstructure containing under-sintered, well sintered, and over-sintered regions due to localised melting. Etched microstructures revealed special mullite morphologies. The applied pressure in SPS caused mullite orients perpendicular to the direction of the applied load. SPS also induced mullite dissolution at 1200 °C. Microwave produced fibre-like mullite via a vapour-liquid-solid mechanism having Fe(l) as a catalyst. Flash sintered samples contained dendritic mullite and some mullite needles were formed via a screw dislocation mechanism. However, mullite crystallite sizes calculated by the Scherrer equation revealed that in fully dense samples from each processing route, mullite crystallite sizes were in a narrow range of 25-40 nm. Physicomechanical of the porcelains produced using the different processing routes were similar; for example, apparent bulk density ranged 2.35-2.46 g/cm3 (MWSDS>SPS), hardness varied 5-7 GPa (MWS
Bulk metals with helical surface states
Creators: name: Bergman, Doron L.
name: Refael, Gil
Publisher: name: arXiv
Year: 2010
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In the flurry of experiments looking for topological insulator materials, it has been recently discovered that some bulk metals very close to topological insulator electronic states, support the same topological surface states that are the defining characteristic of the topological insulator. First observed in spin-polarized ARPES in Sb (D. Hsieh et al. Science 323, 919 (2009)), the helical surface states in the metallic systems appear to be robust to at least mild disorder. We present here a theoretical investigation of the nature of these "helical metals" - bulk metals with helical surface states. We explore how the surface and bulk states can mix, in both clean and disordered systems. Using the Fano model, we discover that in a clean system, the helical surface states are \emph{not} simply absorbed by hybridization with a non-topological parasitic metallic band. Instead, they are pushed away from overlapping in momentum and energy with the bulk states, leaving behind a finite-lifetime surface resonance in the bulk energy band. Furthermore, the hybridization may lead in some cases to multiplied surface state bands, in all cases retaining the helical characteristic. Weak disorder leads to very similar effects - surface states are pushed away from the energy bandwidth of the bulk, leaving behind a finite-lifetime surface resonance in place of the original surface states.
title: Ð¡Ð±Ð¾ÑÐ½Ð¸Ðº Ð½Ð°ÑÑÐ½ÑÑ ÑÑÑÐ´Ð¾Ð² Ð¡ÐÐ± Ð±Ð¾Ð»ÑÐ½Ð¸ÑÑ Ð ÐÐ 2022 Ð³.
Creators: name: Ð§Ð°Ð³ÑÐ½Ð°Ð²Ð°, ÐÐ»ÐµÐ³
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2022
Subjects: Ð¼ÐµÐ´Ð¸ÑÐ¸Ð½Ð°
ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ð¸

description: Ð¡Ð¾Ð´ÐµÑÐ¶Ð¸Ñ ÑÐµÐ·Ð¸ÑÑ Ð´Ð¾ÐºÐ»Ð°Ð´Ð¾Ð² Ð½Ð°ÑÑÐ½ÑÑ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ð¹, Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð½ÑÑ ÑÐµÑÑÐ¸Ð´ÐµÑÑÑÐ¸Ð»ÐµÑÐ¸Ñ Ð¡ÐÐ± Ð±Ð¾Ð»ÑÐ½Ð¸ÑÑ Ð ÐÐ: Â«ÐÐ¸ÑÑÐµÑÑÐºÑÐ¾Ð¼Ð¸Ñ â Ð¼ÐµÑÐ¾Ð´Ñ, Ð´Ð¾ÑÑÑÐ¿, ÑÐ¸ÑÑÑÐ³Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÐ½ÐµÑÐ³Ð¸Ð¸ â VÂ», Â«ÐÐ°ÑÐ¸Ð°ÑÑÐ¸ÑÐµÑÐºÐ°Ñ ÑÐ¸ÑÑÑÐ³Ð¸Ñ Ð¸ Ð¼ÑÐ»ÑÑÐ¸Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ð°ÑÐ½Ð¾Ðµ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ðµ Ð² Ð»ÐµÑÐµÐ½Ð¸Ð¸ ÑÐ°ÑÐ°ÑÐ½Ð¾Ð³Ð¾ Ð´Ð¸Ð°Ð±ÐµÑÐ°Â», Â«ÐÐ¾Ð´Ð´ÐµÑÐ¶Ð¸Ð²Ð°ÑÑÐ°Ñ ÑÐµÑÐ°Ð¿Ð¸Ñ Ð² Ð¾Ð½ÐºÐ¾Ð»Ð¾Ð³Ð¸Ð¸. Ð§ÑÐ¾ Ð´Ð¾Ð»Ð¶ÐµÐ½ Ð·Ð½Ð°ÑÑ ÐºÐ°Ð¶Ð´ÑÐ¹ Ð²ÑÐ°Ñ? â IIIÂ». Ð ÑÐ±Ð¾ÑÐ½Ð¸Ðº ÑÐ°ÐºÐ¶Ðµ Ð²ÐºÐ»ÑÑÐµÐ½Ñ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ñ, Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²Ð»ÐµÐ½Ð½ÑÐµ ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÐºÐ°Ð¼Ð¸ Ð¡ÐÐ± Ð±Ð¾Ð»ÑÐ½Ð¸ÑÑ Ð ÐÐ Ð¿Ð¾ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸ÑÐ¼ Ð½Ð°ÑÑÐ½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÑÑÐµÐ¶Ð´ÐµÐ½Ð¸Ñ. Ð¡Ð±Ð¾ÑÐ½Ð¸Ðº Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½ Ð´Ð»Ñ Ð²ÑÐ°ÑÐµÐ¹-ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸ÑÑÐ¾Ð² ÑÐ°Ð·Ð»Ð¸ÑÐ½Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÑÐ¸Ð»Ñ.
High energy cosmic rays
Creators: name: Gelmini, Graciela B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: I review here some of the physics we are learning and expect to learn in the near future through the observation of cosmic rays. The study of cosmic rays involves a combination of data from accelerators, ground arrays, atmospheric fluorescence detectors and balloon and satellite experiments. I will discuss the data of the Pierre Auger Observatory, PAMELA, ATIC and FST among other experiments.
description: 18 pages, 18 figures (iopams.sty, jpconf11.clo and jpconf.cls required to tex). Plenary talk at "Discrete `08", December 11-16 2008, Valencia, Spain
Cell cycle remodelling during hESC differentiation: a lesson from single cells
Creators: name: Borghi, Chiara
Publisher: name: Imperial College London
Year: 2018

description: The cell cycle is a sequence of events that every cell goes through in order to duplicate its genomic content and segregate it into two daughter cells. Even though the molecular machinery involved in cell cycle control does not vary in different cells, cell cycle dynamics can be very different cells. Human embryonic stem cells (hESCs) have two unique capabilities: they self-renew and differentiate into the three germ layers upon receiving an external stimulus. While their self-renewal state is characterised by a very short cell cycle (~16h) mostly due to a short G1-phase and little checkpoint control, after differentiation they acquire the canonical cell cycle profile of somatic cells with long gap phases and active checkpoint control. Previous studies have highlighted the differences between the pluripotent and the somatic (differentiated) cell cycle but it is still unclear how cells remodel cell division networks to allow for structurally different cell cycles. In order to explore the mechanisms underlying cell cycle remodelling during hESCs differentiation, a combination of cell cycle biosensors and live cell imaging techniques was established to study how cell cycle remodelling happens in single cells during mesoderm differentiation of hESC. The main difference in cell cycle phases length between hESC and differentiated cells was found to be in G1-phase length. We show that the transition from the short G1-phase of hESCs to the remodelled G1-phase of differentiated cells happened in a switch-like manner. Finally, using perturbation approaches, we demonstrated that cell cycle regulators controlling Cdks activity have a role in G1-phase remodelling. We show that p15, p21 and cyclin A1, important Cdk regulators, are involved in G1-phase lengthening during differentiation. The work presented in this thesis set the foundations for future research looking at cell cycle dynamics in live, single cells during early developmental. The work also highlights hESCs as trackable, ideal system to study changes in cell cycle dynamics during embryonic to somatic transition.
The first X-ray look at SMSS J114447.77-430859.3: the most luminous quasar in the last 9 Gyr
Creators: name: Kammoun, E. S.
name: Igo, Z.
name: Miller, J. M.
name: Fabian, A. C.
name: Reynolds, M. T.
name: Merloni, A.
name: Barret, D.
name: Nardini, E.
name: Petrucci, P. -O.
name: Piconcelli, E.
name: Barnier, S.
name: Buchner, J.
name: Dwelly, T.
name: Grotova, I.
name: Krumpe, M.
name: Liu, T.
name: Nandra, K.
name: Rau, A.
name: Salvato, M.
name: Urrutia, T.
name: Wolf, J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: SMSS\,J114447.77-430859.3 ($z=0.83$) has been identified in the SkyMapper Southern Survey as the most luminous quasar in the last $\sim 9\,\rm Gyr$. In this paper, we report on the eROSITA/Spectrum-Roentgen-Gamma (SRG) observations of the source from the eROSITA All Sky Survey, along with presenting results from recent monitoring performed using Swift, XMM-Newton, and NuSTAR. The source shows a clear variability by factors of $\sim 10$ and $\sim 2.7$ over timescales of a year and of a few days, respectively. When fit with an absorbed power law plus high-energy cutoff, the X-ray spectra reveal a $Γ=2.2 \pm 0.2$ and $E_{\rm cut}=23^{+26}_{-5}\,\rm keV$. Assuming Comptonisation, we estimate a coronal optical depth and electron temperature of $τ=2.5-5.3\, (5.2-8)$ and $kT=8-18\, (7.5-14)\,\rm keV$, respectively, for a slab (spherical) geometry. The broadband SED is successfully modelled by assuming either a standard accretion disc illuminated by a central X-ray source, or a thin disc with a slim disc emissivity profile. The former model results in a black hole mass estimate of the order of $10^{10}\,M_\odot$, slightly higher than prior optical estimates; meanwhile, the latter model suggests a lower mass. Both models suggest sub-Eddington accretion when assuming a spinning black hole, and a compact ($\sim 10\,r_{\rm g}$) X-ray corona. The measured intrinsic column density and the Eddington ratio strongly suggest the presence of an outflow driven by radiation pressure. This is also supported by variation of absorption by an order of magnitude over the period of $\sim 900\,\rm days$.
description: Accepted for publication in MNRAS
title: ÐÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ðµ Ð·ÑÐµÐ½Ð¸Ðµ
title: Ð»Ð°Ð±Ð¾ÑÐ°ÑÐ¾ÑÐ½ÑÐ¹ Ð¿ÑÐ°ÐºÑÐ¸ÐºÑÐ¼
titleType: Subtitle
Creators: name: ÐÐ¾Ð»Ð¾Ð´ÑÐºÐ¾Ð², Ð¡ÐµÑÐ³ÐµÐ¹
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: ÐÑÑÐ¸ÑÐ»Ð¸ÑÐµÐ»ÑÐ½ÑÐµ Ð¼Ð°ÑÐ¸Ð½Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½ÑÐµ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»ÑÐ½ÑÐµ
ÐÐ·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ñ
Ð Ð°ÑÐ¿Ð¾Ð·Ð½Ð°Ð²Ð°Ð½Ð¸Ðµ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²
ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ðµ Ð·ÑÐµÐ½Ð¸Ðµ

description: ÐÐ°Ð±Ð¾ÑÐ°ÑÐ¾ÑÐ½ÑÐ¹ Ð¿ÑÐ°ÐºÑÐ¸ÐºÑÐ¼ Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½ Ð´Ð»Ñ Ð¸Ð·ÑÑÐµÐ½Ð¸Ñ Ð¸ Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¾ÑÐ²Ð¾ÐµÐ½Ð¸Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¸ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð¾Ð² ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ð³Ð¾ Ð·ÑÐµÐ½Ð¸Ñ. Ð Ð½ÐµÐ¼ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð²Ð¾Ð¿ÑÐ¾ÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼ Ð¿Ð¾ ÑÐ»ÐµÐ´ÑÑÑÐ¸Ð¼ ÑÐ°Ð·Ð´ÐµÐ»Ð°Ð¼: ÑÐ»ÑÑÑÐµÐ½Ð¸Ðµ Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ð¹, ÑÐµÐ³Ð¼ÐµÐ½ÑÐ°ÑÐ¸Ñ, Ð²ÑÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ Ð¾Ð±ÑÐµÐºÑÐ¾Ð² Ð¸ ÑÐ°ÑÐ¿Ð¾Ð·Ð½Ð°Ð²Ð°Ð½Ð¸Ðµ.
ÐÑÐ½Ð¾Ð²Ð½Ð¾Ðµ Ð²Ð½Ð¸Ð¼Ð°Ð½Ð¸Ðµ ÑÐ´ÐµÐ»ÐµÐ½Ð¾ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±Ð¸Ð±Ð»Ð¸Ð¾ÑÐµÐºÐ¸ ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ð³Ð¾ Ð·ÑÐµÐ½Ð¸Ñ OpenCV. Ð Ð°Ð±Ð¾ÑÑ Ð²ÑÐ¿Ð¾Ð»Ð½ÑÑÑÑÑ Ð½Ð° ÑÐ·ÑÐºÐ°Ñ Ð¡Ð¸ Ð¸ Python. ÐÐ²Ðµ Ð»Ð°Ð±Ð¾ÑÐ°ÑÐ¾Ð½ÑÐµ ÑÐ°Ð±Ð¾ÑÑ Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ñ Ð²Ð¾Ð¿ÑÐ¾ÑÐ°Ð¼ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÑÑÑÐ¾Ð¹ÑÑÐ² Ð² ÑÑÐµÐ´Ðµ GLAD.
Ð£ÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð², Ð¸Ð·ÑÑÐ°ÑÑÐ¸Ñ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ñ Â«ÐÐµÑÐ¾Ð´Ñ Ð¸ ÑÑÐµÐ´ÑÑÐ²Ð° Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð²Ð¸Ð´ÐµÐ¾Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸Â», Â«ÐÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ðµ Ð·ÑÐµÐ½Ð¸ÐµÂ», Â«ÐÐ½Ð°Ð»Ð¸Ð· Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ð¹ Ð¸ Ð²Ð¸Ð´ÐµÐ¾Â» Ð¸ Ð´Ñ.
Hydro and Wind Power
Creators: name: Storli, Pål Tore
Publisher: name: Zenodo
Year: 2021
Subjects: wind
wind power
wind turbines
floating wind
offshore wind

description: This presentation was part of the EERA JP Wind & SETWind Annual Event 2021, in collaboration with ETIPWind (September 20 - 24, Amsterdam & online).
Temporal and Latitudinal Variation in Penumbra-Umbra Ratios of the Sunspots: Analyses of RGO, Kodaikanal and Debrecen Databases
Creators: name: Juhani, Takalo Jouni
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the latitudinal distribution and temporal evolution of the sunspot penumbra-umbra ratio (q) for the even and odd Solar Cycles 12-24 of RGO sunspot groups, SC21-SC24 of Debrecen sunspot groups and Kodaikanal sunspot dataset for SC16-SC24. We find that RGO even (odd) Cycles have q-values 5.20 (4.75), Kodaikanal even (odd) cycles have q-values 5.27 (5.43), and Debrecen cycles has q-value 5.74 on the average. We also show that q is at lowest around the Equator of the Sun and increases towards higher latitudes having maximum values at about 10-25 degrees. This is understandable, because smaller sunspots and groups locate nearer to Equator and have smaller q-values than larger sunspots and groups, which maximize at about 10-20 degrees at both hemispheres. The error limits are very wide and thus the confidence of this result is somewhat vague. For Debrecen dataset we find a deep valley in the temporal q-values before the middle of the cycle. We show that this exists simultaneously with the Gnevyshev gap (GG) in the graph of the total and umbral areas of the large sunspot groups. Other databases do not show GG in their q-graphs, although GG exists in their temporal total area and umbral area.
description: 17 pages, 15 figures
A New Open-Source Code for Spherically-Symmetric Stellar Collapse to Neutron Stars and Black Holes
Creators: name: O'Connor, Evan
name: Ott, Christian D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present the new open-source spherically-symmetric general-relativistic (GR) hydrodynamics code GR1D. It is based on the Eulerian formulation of GR hydrodynamics (GRHD) put forth by Romero-Ibanez-Gourgoulhon and employs radial-gauge, polar-slicing coordinates in which the 3+1 equations simplify substantially. We discretize the GRHD equations with a finite-volume scheme, employing piecewise-parabolic reconstruction and an approximate Riemann solver. GR1D is intended for the simulation of stellar collapse to neutron stars and black holes and will also serve as a testbed for modeling technology to be incorporated in multi-D GR codes. Its GRHD part is coupled to various finite-temperature microphysical equations of state in tabulated form that we make available with GR1D. An approximate deleptonization scheme for the collapse phase and a neutrino-leakage/heating scheme for the postbounce epoch are included and described. We also derive the equations for effective rotation in 1D and implement them in GR1D. We present an array of standard test calculations and also show how simple analytic equations of state in combination with presupernova models from stellar evolutionary calculations can be used to study qualitative aspects of black hole formation in failing rotating core-collapse supernovae. In addition, we present a simulation with microphysical EOS and neutrino leakage/heating of a failing core-collapse supernova and black hole formation in a presupernova model of a 40 solar mass zero-age main-sequence star. We find good agreement on the time of black hole formation (within 20%) and last stable protoneutron star mass (within 10%) with predictions from simulations with full Boltzmann neutrino radiation hydrodynamics.
description: 25 pages, 6 figures, 2 appendices. Accepted for publication to the Classical and Quantum Gravity special issue for MICRA2009. Code may be downloaded from http://www.stellarcollapse.org Update: corrected title, small modifications suggested by the referees, added source term derivation in appendix.
title: Ð¡Ð»Ð¾Ð¶ÐµÐ½Ð¸Ðµ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐµÐ¹ Ð² Ð²ÑÑÐ¾ÐºÐ¾ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾Ð¼ ÑÐ°Ð´Ð¸Ð¾Ð¿ÐµÑÐµÐ´Ð°ÑÑÐµÐ¼ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ðµ Ð¡Ð-ÐÐ Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ð°, Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð½Ð¾Ð¼ Ð¿Ð¾ Ð¼Ð¾Ð´ÑÐ»ÑÐ½Ð¾Ð¼Ñ Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ñ
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÑÐ³Ð°ÐµÐ², ÐÐ½Ð´ÑÐµÐ¹
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: 2017
Subjects: ÑÐ°Ð´Ð¸Ð¾Ð¿ÐµÑÐµÐ´Ð°ÑÑÐµÐµ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð¾
ÑÐ»Ð¾Ð¶ÐµÐ½Ð¸Ðµ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐµÐ¹
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description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð¸Ñ ÑÐ²Ð»ÑÑÑÑÑ Ð¼Ð¾ÑÑÐ¾Ð²ÑÐµ Ð¼Ð½Ð¾Ð³Ð¾Ð¿Ð¾Ð»ÑÑÐ½ÑÐµ ÑÑÐµÐ¼Ñ ÑÐ»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐµÐ¹. Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ ÑÐ¾ÑÑÐ¾Ð¸Ñ Ð² Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ñ ÑÑÑÑÐ¾Ð¹ÑÑÐ² ÑÐ»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐµÐ¹, Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÐµÐ¼ÑÑ Ð¿ÑÐ¸ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ð¸ Ð¼Ð¾ÑÐ½ÑÑ ÐºÐ»ÑÑÐµÐ²ÑÑ ÑÐ°Ð´Ð¸Ð¾Ð¿ÐµÑÐµÐ´Ð°ÑÑÐ¸Ñ ÑÑÑÑÐ¾Ð¹ÑÑÐ². ÐÐ»Ñ Ð¼Ð½Ð¾Ð³Ð¾Ð¿Ð¾Ð»ÑÑÐ½ÑÑ ÑÑÑÑÐ¾Ð¹ÑÑÐ² Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ Ð²ÑÑÐ°Ð¶ÐµÐ½Ð¸Ñ, Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑÑÐ¸Ðµ Ð¾Ð¿ÑÐµÐ´ÐµÐ»Ð¸ÑÑ ÑÑÐ»Ð¾Ð²Ð¸Ñ ÑÐ¾Ð³Ð»Ð°ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ ÑÐ°Ð·Ð²ÑÐ·ÐºÐ¸ ÐºÐ°Ð¶Ð´Ð¾Ð³Ð¾ Ð¸Ð· Ð²ÑÐ¾Ð´Ð¾Ð² Ð¼Ð½Ð¾Ð³Ð¾Ð¿Ð¾Ð»ÑÑÐ½Ð¾Ð³Ð¾ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð° Ð¸ Ð¸Ñ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ.
Feature-Balanced Loss for Long-Tailed Visual Recognition
Creators: name: Li, Mengke
name: Cheung, Yiu-ming
name: Jiang, Juyong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Deep neural networks frequently suffer from performance degradation when the training data is long-tailed because several majority classes dominate the training, resulting in a biased model. Recent studies have made a great effort in solving this issue by obtaining good representations from data space, but few of them pay attention to the influence of feature norm on the predicted results. In this paper, we therefore address the long-tailed problem from feature space and thereby propose the feature-balanced loss. Specifically, we encourage larger feature norms of tail classes by giving them relatively stronger stimuli. Moreover, the stimuli intensity is gradually increased in the way of curriculum learning, which improves the generalization of the tail classes, meanwhile maintaining the performance of the head classes. Extensive experiments on multiple popular long-tailed recognition benchmarks demonstrate that the feature-balanced loss achieves superior performance gains compared with the state-of-the-art methods.
description: Published as a conference paper at ICME 2022
The final fate of instability of Reissner-Nordström-anti-de Sitter black holes by charged complex scalar fields
Creators: name: Maeda, Kengo
name: Koga, Jun-ichirou
name: Fujii, Shunsuke
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate instability of 4-dimensional Reissner-Nordström-anti-de Sitter (RN-AdS$_4$) black holes with various topologies by charged scalar field perturbations. We numerically find that the RN-AdS$_4$ black holes become unstable against the linear perturbations below a critical temperature. It is analytically shown that charge extraction from the black holes occurs during the unstable evolution. To explore the end state of the instability, we perturbatively construct static black hole solutions with the scalar hair near the critical temperature. It is numerically found that the entropy of the hairly black hole is always larger than the one of the unstable RN-AdS$_4$ black hole in the microcanonical ensemble. Our results support the speculation that the black hole with charged scalar hair always appears as the final fate of the instability of the RN-AdS$_4$ black hole.
description: 9 pages, 4 figures. To appear in PRD
Loss of β-cell identity in diabetes: Significance of miR-7-mediated chromatin remodelling
Creators: name: Von Ohlen, Yorrick
Publisher: name: Imperial College London
Year: 2019

description: Type 2 diabetes (T2D) affects 10% of the adult global population and is a multifactorial disease characterised by insulin resistance of peripheral organs. Insulin resistance results eventually in failure of pancreatic β-cells and subsequent apoptosis. Recent research revealed that β-cell dedifferentiation is contributing to decreasing their function in T2D. Dedifferentiated β-cells express atypical non-β-cell hormones, suggesting transdifferentiation into other cells. Our group previously showed that miR-7 levels are increased in T2D. Upregulation of miR-7a2 in β-cells of mice resulted in a diabetic phenotype and loss of key β-cell identity markers. The aims of this study were to 1) investigate if miR-7a2 triggers the dedifferentiation of β-cells, 2) identify messenger RNA (mRNA) targets of miR-7 which contribute to induce β-cell dedifferentiation in T2D, and 3) assess how miR-7 targets impact on the functional identity of mature β-cells. Our results showed that elevated miR-7a2 levels impair β-cell identity in mouse and human, accompanied by the occurrence of polyhormonal β-cells. Furthermore, we demonstrated that miR-7a2 is a regulator of the chromatin remodelling mSWI/SNF complexes, through repression of the catalytic ATPase subunit Brahma-related gene 1 (Brg1) both in vitro and in vivo. Additionally, we revealed that miR-7a2 represses the expression of BAF60A, a regulatory subunit of mSWI/SNF complexes. β-cell-specific miR-7a2 overexpression in mice resulted in the closure of chromatin around genes involved in maintaining β-cell identity. Those regions overlapped with binding sites of β-cell specific transcription factors (TF). Knockdown of Brg1 in β-cell lines and β-cell specific Brg1 deletion in mice resulted in the loss of β-cell identity as revealed by the downregulation of β-cell markers, reduction of pancreatic islet insulin protein content and an impairment in glucose stimulated insulin secretion (GSIS).