cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: North-South division and injustice in the UNFCCC climate finance policy process: a historical institutionalist perspective
Creators: name: Coventry, Philip
Publisher: name: University of Reading
Year: 2019

description: Rooted in the core injustices of climate change, climate finance is central to ongoing North- South political contestation in the global governance of climate change and UNFCCC policy output, but has been given considerably less attention by scholars than mitigation and adaptation. This thesis uses a historical institutionalist approach to add to existing international relations and international political economy research into global environmental governance and justice, extending the application of historical institutionalism at the international level. With an emphasis on North-South political and justice divisions, the project examines the original institutional design of the UNFCCC in 1992 and the subsequent development of four contested areas of the climate finance policy process until 2015, identifying evidence of coalition building, incremental change, path dependence, policy paradigms and other mechanisms whereby institutional rule structures rooted in the initial institutional design have affected actors' power, interests, ideas and behaviour. The thesis finds that in all four policy areas the UNFCCC’s initial policies and, in some cases, policy ambiguities, were shaped by developed countries’ material interests and normative perspectives. This gave advantages to developed countries that enhanced their political power within negotiations and affected the policy process in such a way that developing countries usually had to seek institutional change, while developed countries could reinforce existing rule structures. Examples of institutional change in the four areas are limited, and in most cases were in line with developed countries’ shifting objectives rather than indicating developing countries genuinely overcoming disadvantageous structures. Overall, the thesis demonstrates that institutional design and development are important factors perpetuating North-South contestation in the UNFCCC climate finance policy process and limiting the realisation of developing countries’ interests and priorities, and shows that historical institutionalism can offer useful new insight into global environmental governance institutions and the justice of their outcomes.
Trends in apprehension policies : a comparative analysis of committals of children by the Children's Aid Society of Vancouver, British Columbia, in the years 1938 and 1952
Creators: name: Dorosh, Andrew Ivan
Publisher: name: University of British Columbia
Year: 2012

description: This study is a comparative analysis of apprehensions and committals made by the Children's Aid Society of Vancouver, British Columbia, in the years 1938 and 1952. Only cases both apprehended and committed within the year period were analyzed, and committals of children from unmarried mothers were excluded. The purpose of the study was to determine the causes or reasons for apprehension and committal, with reference to the legislation employed, and such changes as may have occurred in the kinds of neglect or dependency, their frequency of occurrence, and in the parental status of committed children. A distinction was drawn between conditions of neglect and conditions of dependency, in congruence with formulated definitions of the neglected and the dependent child. A classification of ten conditions of neglect and dependency was devised, based on an analysis of the sixty-eight committal cases studied. The kinds of neglect included: (1) Rejection, (2) Physical Neglect, (3) Moral Neglect, (4) Desertion, (5) Desertion and Moral Neglect, and (6) Desertion and Rejection. Dependency included conditions arising from: (1) Death of the Only Legal Parent or of Both Parents, (2) Physical Illness of Parent or Parents, (3) Mental Illness of Parent or Parents, and (4) Inadequacy of Parent or Parents. Of the twenty-three cases (involving fifty-two children) studied from the year 1938, sixteen committals or 69.59% of the total were for reasons of neglect. Seven committals or 30.41% of the total, were for reasons of dependency. In 1952, of the forty-five cases (comprising seventy-seven children) studied, thirty-two cases, or 71.11% of the total committals were for reasons of neglect. Thirteen committals or 28.88% of the total were for reasons of dependency. The study revealed that the proportion of committals for neglect and for dependency in 1938 and 1952 were approximately the same. The frequency of specific kinds of neglect, however, was found to differ proportionally, as did the frequency of specific kinds of dependency. With reference to status of parents of committed children, it was found that committals from married couples and from families with illegitimacy were greater in 1952, while committals from broken homes or incomplete families were fewer. The changes are revealed and are discussed in reference to the disruptive effects of the war period, and in relation to the development of better social services and resources within the community since 1938. These factors are found to have significantly affected the pattern or character of committals.
Isometry-preserving boundary conditions in the Kerr/CFT correspondence
Creators: name: Rasmussen, Jorgen
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The near-horizon geometries of the extremal Kerr black hole and certain generalizations thereof are considered. Their isometry groups are all given by SL(2,R) x U(1). The usual boundary conditions of the Kerr/CFT correspondence enhance the U(1) isometry to a Virasoro algebra. Various alternatives to these boundary conditions are explored. Partial classifications are provided of the boundary conditions enhancing the SL(2,R) isometries or separately the U(1) isometry to a Virasoro algebra. In the case of SL(2,R)-enhancing boundary conditions of a near-horizon geometry of the type considered, the conserved charges associated to the generators of the asymptotic Virasoro symmetry form a centreless Virasoro algebra.
description: 16 pages, v3: comments and references added
title: Ð¢ÑÑÐ´Ñ Ð½Ð°ÑÑÐ½Ð¾Ð¹ ÑÐºÐ¾Ð»Ñ ÐºÐ¾Ð¼Ð¿ÑÐµÑÑÐ¾ÑÐ¾ÑÑÑÐ¾ÐµÐ½Ð¸Ñ Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ð¸ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑÐ° ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Creators: name: ÐÐ°Ð»ÐµÑÐºÐ¸Ð½, Ð®ÑÐ¸Ð¹
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2021
Subjects: Ð¡ÐµÐ»ÐµÐ·Ð½ÐµÐ², ÐÐ¾Ð½ÑÑÐ°Ð½ÑÐ¸Ð½ ÐÐ°Ð²Ð»Ð¾Ð²Ð¸Ñ, 1920-1998
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description: ÐÐ½Ð¸Ð³Ð° Â«Ð¢ÑÑÐ´Ñ Ð½Ð°ÑÑÐ½Ð¾Ð¹ ÑÐºÐ¾Ð»Ñ ÐºÐ¾Ð¼Ð¿ÑÐµÑÑÐ¾ÑÐ¾ÑÑÑÐ¾ÐµÐ½Ð¸Ñ Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑÐ° ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾Â» Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÑÐ¾Ð»ÐµÑÐ¸Ñ ÑÐ¾ Ð´Ð½Ñ ÑÐ¾Ð¶Ð´ÐµÐ½Ð¸Ñ
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Descente par éclatements en K-théorie invariante par homotopie
Creators: name: Cisinski, Denis-Charles
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: These notes give a proof of the representability of homotopy invariant K-theory in the stable homotopy category of schemes (which was announced by Voevodsky). One deduces from the proper base change theorem in stable homotopy theory of schemes a descent by blow-ups theorem for homotopy invariant K-theory.
description: in French; final version
title: Ð¢ÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¿ÑÐ¾ÑÐµÑÑ Ð¼ÐµÑ Ð°Ð½Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð´ÐµÑÐ°Ð»Ð¸ Â«ÐÑÑÐ»ÐºÐ° ÑÐ»Ð°Ð½ÑÐµÐ²Ð°ÑÂ»
title: Ð´Ð¸Ð¿Ð»Ð¾Ð¼Ð½ÑÐ¹ Ð¿ÑÐ¾ÐµÐºÑ
titleType: Subtitle
Creators: name: Ð§ÐµÑÐµÐ½ÐºÐ¾Ð², ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2016
Subjects: Ð²ÑÑÐ»ÐºÐ° ÑÐ»Ð°Ð½ÑÐµÐ²Ð°Ñ
ÑÐµÑÐ¸Ð¹Ð½Ð¾Ðµ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð¾
ÑÐµÐ¶Ð¸Ð¼Ñ ÑÐµÐ·Ð°Ð½Ð¸Ñ
ÑÑÐ°Ð½Ð¾ÑÐ½Ð¾Ðµ Ð¿ÑÐ¸ÑÐ¿Ð¾ÑÐ¾Ð±Ð»ÐµÐ½Ð¸Ðµ
ÐºÐ¾Ð½ÑÑÐ¾Ð»ÑÐ½Ð¾-Ð¸Ð·Ð¼ÐµÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ðµ Ð¿ÑÐ¸ÑÐ¿Ð¾ÑÐ¾Ð±Ð»ÐµÐ½Ð¸Ðµ

description: ÐÑÐ½Ð¾Ð²Ð½Ð°Ñ ÑÐµÐ»Ñ Ð´Ð¸Ð¿Ð»Ð¾Ð¼Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ° - ÑÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°ÑÑ Ð±Ð°Ð·Ð¾Ð²ÑÑ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ñ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸ ÑÑÐ°ÐºÐ°Ð½Ð° Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸ÐµÐ¼ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐµÐ¹ ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ, Ð¿ÑÐ¾Ð³ÑÐµÑÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ ÑÐµÐ¶ÑÑÐµÐ³Ð¾ Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½ÑÐ°, ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½ÑÑ ÑÑÐ°Ð½Ð¾ÑÐ½ÑÑ Ð¿ÑÐ¸ÑÐ¿Ð¾ÑÐ¾Ð±Ð»ÐµÐ½Ð¸Ð¹. Ð Ð´Ð¸Ð¿Ð»Ð¾Ð¼Ð½Ð¾Ð¼ Ð¿ÑÐ¾ÐµÐºÑÐµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¸ ÑÐµÑÐµÐ½Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ðµ, ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¸ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð·Ð°Ð´Ð°ÑÐ¸. ÐÐ»Ñ ÑÐµÑÐµÐ½Ð¸Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ñ Ð·Ð°Ð´Ð°Ñ Ð¿ÑÐ¾ÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ Ð²Ð¾Ð¿ÑÐ¾ÑÑ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐ½Ð¾ÑÑÐ¸ Ð¸Ð·Ð´ÐµÐ»Ð¸Ð¹, ÑÐ¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¿ÑÐ¾ÑÐµÑÑ, Ð²ÑÑÐ²Ð»ÐµÐ½Ð° ÑÑÑÐ´Ð¾ÐµÐ¼ÐºÐ¾ÑÑÑ Ð¸ ÑÑÐ°Ð½ÐºÐ¾ÐµÐ¼ÐºÐ¾ÑÑÑ Ð¾Ð¿ÐµÑÐ°ÑÐ¸Ð¹, ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½ ÑÐ¸Ð¿Ð°Ð¶ Ð¸ ÐºÐ¾Ð»Ð¸ÑÐµÑÑÐ²Ð¾ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ, ÑÐ¾ÑÑÐ°Ð² Ð² ÐºÐ¾Ð»Ð¸ÑÐµÑÑÐ²Ð¾ ÑÐ°Ð±Ð¾ÑÐ°ÑÑÐ¸Ñ, Ð½Ð¾ÑÐ¼Ñ ÑÐ°ÑÑÐ¾Ð´Ð° Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð². ÐÐ»Ñ ÑÐµÑÐµÐ½Ð¸Ñ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ Ð·Ð°Ð´Ð°Ñ ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ñ ÑÐµÐ½ÑÐ°Ð±ÐµÐ»ÑÐ½Ð¾ÑÑÑ Ð²ÑÐ¿ÑÑÐºÐ° Ð¸Ð·Ð´ÐµÐ»Ð¸Ð¹, Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ ÑÐ´ÐµÐ»ÑÐ½ÑÐµ Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ð½ÑÐµ Ð·Ð°ÑÑÐ°ÑÑ, ÑÐ°Ð·Ð¼ÐµÑÑ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ Ð¸ Ð¾Ð±Ð¾ÑÐ¾ÑÐ½ÑÑ ÑÑÐµÐ´ÑÑÐ², ÑÐ¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð° ÐºÐ°Ð»ÑÐºÑÐ»ÑÑÐ¸Ñ. ÐÐ»Ñ ÑÐµÑÐµÐ½Ð¸Ñ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð·Ð°Ð´Ð°Ñ - Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ñ Ð¿Ð¾ ÑÐµÑÐ½Ð¸ÐºÐµ Ð±ÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾ÑÑÐ¸ Ð¸ Ð¾ÑÑÐ°Ð½Ðµ ÑÑÑÐ´Ð°.
On Small Perturbations of a Spin Glass System
Creators: name: Arguin, Louis-Pierre
name: Kistler, Nicola
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 82D30, 60G55

description: We show through a simple example that perturbations of the Hamiltonian of a spin glass which cannot be detected at the level of the free energy can completely alter the behavior of the overlap. In particular, perturbations of order O(log N), with N the size of the system, suffice to have ultrametricity emerge in the thermodynamical limit.
description: 15 pages
Imaging in scattering media via the second-order correlation of light field
Creators: name: Gong, Wenlin
name: Zhang, Pengli
name: Shen, Xia
name: Han, Shensheng
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Imaging with the second-order correlation of two light fields is a method to image an object by two-photon interference involving a joint detection of two photons at distant space-time points. We demonstrate for the first time that an image with high quality can still be obtained in the scattering media by applying the second-order correlation of illuminating light field. The scattering effect on the visibility of images is analyzed both theoretically and experimentally. Potential applications and the methods to further improve the visibility of the images in scattering media are also discussed.
description: 4 pages, 3 figures
Investigating the biological factors that contribute to the variability of FVIII clearance inpatients with severe haemophilia
Creators: name: Guest, Thomas
Publisher: name: Royal College of Surgeons in Ireland
Year: 2023
Subjects: classificationCode: 320102
subject: Haematology

description: Haemophilia A is a rare bleeding disorder caused by reduced levels of FVIII due to genetic changes in the F8 gene. Treatment has improved significantly from the use of blood transfusions to recombinant FVIII replacement therapy. Despite these improvements several underlying issues persist given that FVIII prophylaxis is administered on a weight-based protocol. Several studies have highlighted that patients with haemophilia A (PWH) exhibit marked inter-individual variation in FVIII half-life consequently impacting treatment regimens and quality of life. Importantly, the underlying mechanisms of this variation remain poorly understood. Therefore, the Irish Personalised Approach to Treatment of Haemophilia was set up as the first study in Irish PWH to establish clinical trends that would enable personalised treatment regimens. Importantly, FVIII half-life varied widely (7 to 21 hours) in Irish PWH. Furthermore, we concluded that FVIII half-life and FVIII clearance were significantly influenced by VWF levels, VWF clearance, ABO blood group and age. Increased plasma VWF levels and reduced endogenous VWF clearance were significantly correlated to increased FVIII half-life. Additionally, blood group O patients showed decreased FVIII half-lives and increased VWF clearance compared to Non-O blood group patients. 
Having established the factors contributing to the variation in FVIII half-life, we chose to take a closer look at the underlying mechanism and assess the receptors involved. A recent study indicated that up to 25% of FVIII is cleared as free contrary to the previously assumed 2-5%. Therefore, we chose to investigate the interaction of free FVIII with clearance cells i.e., hepatocytes and macrophages. We showed that free FVIII interacted with both hepatocytes and macrophages and concluded galactose-specific lectins were mediating this interaction. Additionally, our observations showed that desialylated FVIII strongly interacted with hepatocytes and macrophages. Our results indicate the presence of a novel FVIII-binding galactose specific lectin on the surface of macrophages. We hypothesise this receptor is MGL given that MGL is described as a clearance receptor for VWF and that VWF and FVIII glycan composition are relatively similar. In vitro binding assays showed that FVIII bound dose dependently to both immobilised MGL and ectopically expressed MGL on HEK cells. In conclusion, we show that MGL is a novel binding partner for FVIII.
title: ÐÐ»Ð°ÑÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ñ Ð¿ÑÐ¾Ð¼ÑÑÐ»ÐµÐ½Ð½ÑÑ ÑÐµÐ³Ð¸Ð¾Ð½Ð¾Ð² Ð Ð¤ Ð² Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¸ ÑÑÐ»Ð¾Ð²Ð¸Ð¹ ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾Ð³Ð¾ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ: Ð°Ð´Ð°Ð¿ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÐ¹ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼ k-means
title: Classification of industrial regions of the Russian federation in the research of sustainable development conditions: an adapted k-means algorithm
Creators: name: Ð¨Ð°ÑÐ°Ð»Ð¾Ð²Ð°, ÐÐ»ÑÐ³Ð°
name: ÐÐ°ÑÐ°ÑÐºÐ¸Ð½Ð°, ÐÐºÐ°ÑÐµÑÐ¸Ð½Ð°
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ÑÐ¾Ð¼ÑÑÐ»ÐµÐ½Ð½Ð¾ÑÑÑ
ÑÐµÐ³Ð¸Ð¾Ð½Ð°Ð»ÑÐ½Ð°Ñ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ°
ÐºÐ»Ð°ÑÑÐµÑÐ¸Ð·Ð°ÑÐ¸Ñ
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Ð¸Ð½Ð½Ð¾Ð²Ð°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð¿Ð¾Ð»Ð¸ÑÐ¸ÐºÐ°

description: Ð¡ÑÐ°ÑÑÑ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÑÐµÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½ÑÐ¹ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼ ÐºÐ»Ð°ÑÑÐµÑÐ½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð°, Ð¿ÑÐ¸Ð¼ÐµÐ½Ð¸Ð¼ÑÐ¹ Ð² ÑÐµÐ»ÑÑ ÐºÐ»Ð°ÑÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸ Ð¿ÑÐ¾Ð¼ÑÑÐ»ÐµÐ½Ð½ÑÑ ÑÐµÐ³Ð¸Ð¾Ð½Ð¾Ð² Ð¿Ð¾ Ð¿ÑÐ¸Ð·Ð½Ð°ÐºÑ Ð¸Ñ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸. ÐÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð½ÑÐ¹ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼ Ð¾ÑÐ½Ð¾Ð²Ð°Ð½ Ð½Ð° Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð¼ÐµÑÐ¾Ð´Ð° k-ÑÑÐµÐ´Ð½Ð¸Ñ, Ð°Ð´Ð°Ð¿ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ Ñ ÑÑÐµÑÐ¾Ð¼ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ ÐºÐ¾Ð½ÑÐµÐ¿ÑÐ¸Ð¸ Ð¤Ð¸ÑÐµÑÐ°-ÐÐ»Ð°ÑÐºÐ°, ÑÑÐ»Ð¾Ð²Ð¸Ð¹ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÑÐ°ÑÐ¸ÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¸Ð·Ð¼ÐµÑÐµÐ½Ð¸Ð¹ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ¸ ÑÐµÐ³Ð¸Ð¾Ð½Ð¾Ð² Ð¸ ÑÐ¿ÐµÑÐ¸ÑÐ¸ÐºÐ¸ Ð¿ÑÐ¾ÑÑÑÐ°Ð½ÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ Ð¾ÑÐµÑÐµÑÑÐ²ÐµÐ½Ð½Ð¾Ð¹ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ¸. Ð ÑÑÐ°ÑÑÐµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ ÐºÐ»Ð°ÑÑÐµÑÐ½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¿ÑÐ¾Ð¼ÑÑÐ»ÐµÐ½Ð½ÑÑ ÑÐµÐ³Ð¸Ð¾Ð½Ð¾Ð² Ð Ð¤, Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð°.
description: The article presents a cluster analysis algorithm applicable in their classification of industrial regions based on economic specialization. The proposed algorithm is based on the use of the k-means method, adapted taking into account the theoretical position of Fisher-Clarke, the conditions of the state system of statistical measurements of the regional economy and the specifics of the spatial development of the domestic economy. The article presents the results of the cluster analysis of the industrial regions of the Russian Federation, carried out on the basis of the proposed algorithm.
title: Domain knowledge informed multitask learning for landslide induced seismic classification
Creators: name: Li, Jiangfeng
name: Ye, Minxiang
name: Stankovic, Lina
name: Stankovic, Vladimir
name: Pytharouli, Stella
Publisher: name: Strathprints - University of Strathclyde
Year: 2023

description: Automatic seismic signal classification methods are extensively investigated to reduce or replace manual interpretation, with great potential in previous research. Discriminative seismic wave propagation physical characteristics, such as velocities and accelerations, are rarely considered for classification. A multitask learning scheme is proposed that utilises the seismic wave equation and three-dimensional (3D) P-wave velocity Vp model for signal representation learning. The classifier uses the obtained latent feature maps on a convolutional neural network architecture for classification of rockfall, slide quake, earthquake, and natural/anthropogenic noise events, recorded at an ongoing landslide. Our experimental results show that our approach outperforms state-of-the-art methods.
title: Ð¤Ð¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¾ÑÑÐµÑÐ° Ð¾ Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ð¸ Ð´ÐµÐ½ÐµÐ¶Ð½ÑÑ ÑÑÐµÐ´ÑÑÐ² Ð² ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²Ð¸Ð¸ Ñ ÐÐ¡Ð¤Ð (Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÐÐÐ "Ð¢Ð¾ÑÐ³Ð¾Ð²ÑÐ¹ ÐÐ¾Ð¼ ÐÐ°Ð½ÐºÐ¾Ð¼")
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Ð¾Ð»Ð¾ÑÐ°ÑÑÐ²Ð°, ÐÐ½Ð°ÑÑÐ°ÑÐ¸Ñ
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´ÐµÐ½ÐµÐ¶Ð½ÑÐµ ÑÑÐµÐ´ÑÑÐ²Ð°
Ð´ÐµÐ½ÐµÐ¶Ð½ÑÐµ Ð¿Ð¾ÑÐ¾ÐºÐ¸
ÑÐ°ÑÑÐµÑÐ½ÑÐ¹ ÑÑÐµÑ
ÐºÐ°ÑÑÐ°
ÑÐ¸ÑÑÐµÐ¼Ð° Ð²Ð½ÑÑÑÐµÐ½Ð½ÐµÐ³Ð¾ ÐºÐ¾Ð½ÑÑÐ¾Ð»Ñ

description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ: ÐÐÐ Â«Ð¢Ð¾ÑÐ³Ð¾Ð²ÑÐ¹ ÐÐ¾Ð¼ ÐÐ°Ð½ÐºÐ¾Ð¼Â». Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ - Ð¸Ð·ÑÑÐµÐ½Ð¸Ðµ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¾ÑÑÐµÑÐ° Ð¾ Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ð¸ Ð´ÐµÐ½ÐµÐ¶Ð½ÑÑ ÑÑÐµÐ´ÑÑÐ² Ð² ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²Ð¸Ð¸ Ñ ÐÐ¡Ð¤Ð, Ð° ÑÐ°ÐºÐ¶Ðµ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¾ÑÑÐµÑÐ° Ð¾ Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ð¸ Ð´ÐµÐ½ÐµÐ¶Ð½ÑÑ ÑÑÐµÐ´ÑÑÐ² Ð¸ ÑÐ¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ ÐµÐ³Ð¾ Ð¿ÑÑÐ¼ÑÐ¼ Ð¸ ÐºÐ¾ÑÐ²ÐµÐ½Ð½ÑÐ¼ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÐÐÐ Â«Ð¢Ð¾ÑÐ³Ð¾Ð²ÑÐ¹ ÐÐ¾Ð¼ ÐÐ°Ð½ÐºÐ¾Ð¼Â». Ð Ð¿ÑÐ¾ÑÐµÑÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»Ð¸ÑÑ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÑÐµÑÐ°
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Marginal relevance of disorder for pinning models
Creators: name: Giacomin, Giambattista
name: Lacoin, Hubert
name: Toninelli, Fabio Lucio
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 82B44, 60K37, 60K05, 82B41

description: The effect of disorder on pinning and wetting models has attracted much attention in theoretical physics. In particular, it has been predicted on the basis of the Harris criterion that disorder is relevant (annealed and quenched model have different critical points and critical exponents) if the return probability exponent alpha, a positive number that characterizes the model, is larger than 1/2. Weak disorder has been predicted to be irrelevant (i.e. coinciding critical points and exponents) if alpha < 1/2. Recent mathematical work has put these predictions on firm grounds. In renormalization group terms, the case alpha = 1/2 is a 'marginal case' and there is no agreement in the literature as to whether one should expect disorder relevance or irrelevance at marginality. The question is particularly intriguing also because the case alpha = 1/2 includes the classical models of two-dimensional wetting of a rough substrate, of pinning of directed polymers on a defect line in dimension (3+1) or (1+1) and of pinning of an heteropolymer by a point potential in three-dimensional space. Here we prove disorder relevance both for the general alpha = 1/2 pinning model and for the hierarchical version of the model proposed by B. Derrida, V. Hakim and J. Vannimenus (JSP, 1992), in the sense that we prove a shift of the quenched critical point with respect to the annealed one. In both cases we work with Gaussian disorder and we show that the shift is at least of order exp(-1/β^4) for beta small, if beta is the standard deviation of the disorder.
description: 27 pages. v2: section 4.1 simplified. To appear on Commun. Pure Appl. Math
On non-uniformly hyperbolicity assumptions in one-dimensional dynamics
Creators: name: Li, Huaibin
name: Shen, Weixiao
Publisher: name: arXiv
Year: 2009
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37F10, 37E05

description: We give an essentially equivalent formulation of the backward contracting property, defined by Juan Rivera-Letelier, in terms of expansion along the orbits of critical values, for complex polynomials of degree at least two which are at most finitely renormalizable and have only hyperbolic periodic points, as well as for all smooth interval maps with non-flat critical points.
description: 21 pages
Towards effective Lagrangians for adelic strings
Creators: name: Dragovich, Branko
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: p-Adic strings are important objects of string theory, as well as of p-adic mathematical physics and nonlocal cosmology. By a concept of adelic string one can unify and simultaneously study various aspects of ordinary and p-adic strings. By this way, one can consider adelic strings as a very useful instrument in the further investigation of modern string theory. It is remarkable that for some scalar p-adic strings exist effective Lagrangians, which are based on real instead of p-adic numbers and describe not only four-point scattering amplitudes but also all higher ones at the tree level. In this work, starting from p-adic Lagrangians, we consider some approaches to construction of effective field Lagrangians for p-adic sector of adelic strings. It yields Lagrangians for nonlinear and nonlocal scalar field theory, where spacetime nonlocality is determined by an infinite number of derivatives contained in the operator-valued Riemann zeta function. Owing to the Riemann zeta function in the dynamics of these scalar field theories, obtained Lagrangians are also interesting in themselves.
description: 11 pages. Based on a talk at the 4-th RTN "Forces-Universe" EU Network Workshop in Varna, 11-17 September 2008. Submitted for publication to the Fortschritte der Physik
Gaussian Belief with dynamic data and in dynamic network
Creators: name: Aurell, Erik
name: Pfitzner, René
Publisher: name: arXiv
Year: 2009
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Information Theory (cs.IT)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In this paper we analyse Belief Propagation over a Gaussian model in a dynamic environment. Recently, this has been proposed as a method to average local measurement values by a distributed protocol ("Consensus Propagation", Moallemi & Van Roy, 2006), where the average is available for read-out at every single node. In the case that the underlying network is constant but the values to be averaged fluctuate ("dynamic data"), convergence and accuracy are determined by the spectral properties of an associated Ruelle-Perron-Frobenius operator. For Gaussian models on Erdos-Renyi graphs, numerical computation points to a spectral gap remaining in the large-size limit, implying exceptionally good scalability. In a model where the underlying network also fluctuates ("dynamic network"), averaging is more effective than in the dynamic data case. Altogether, this implies very good performance of these methods in very large systems, and opens a new field of statistical physics of large (and dynamic) information systems.
description: 5 pages, 7 figures
A method to measure a relative transverse velocity of source-lens-observer system using gravitational lensing of gravitational waves
Creators: name: Itoh, Yousuke
name: Futamase, Toshifumi
name: Hattori, Makoto
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravitational waves propagate along null geodesics like light rays in the geometrical optics approximation, and they may have a chance to suffer from gravitational lensing by intervening objects, as is the case for electromagnetic waves. Long wavelength of gravitational waves and compactness of possible sources may enable us to extract information in the interference among the lensed images. We point out that the interference term contains information of relative transverse velocity of the source-lens-observer system, which may be obtained by possible future space-borne gravitational wave detectors such as BBO/DECIGO.
description: 27 pages, 9 figures. Accepted for publication in Physical Review D
Information topologies on non-commutative state spaces
Creators: name: Weis, Stephan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81P45, 81P16, 54D55, 94A17, 90C26

description: We define an information topology (I-topology) and a reverse information topology (rI-topology) on the state space of a C*-subalgebra of Mat(n,C). These topologies arise from sequential convergence with respect to the relative entropy. We prove that open disks, with respect to the relative entropy, define a base for them, while Csiszar has shown in 1967 that the analogue is wrong for probability measures on a countably infinite set. The I-topology is finer than the norm topology, it disconnects the convex state space into its faces. The rI-topology is intermediate between these topologies. We complete two fundamental theorems of information geometry to the full state space, by taking the closure in the rI-topology. The norm topology is too coarse for this aim only for a non-commutative algebra, so its discrepancy to the rI-topology belongs to the quantum domain. We apply our results to the maximization of the von Neumann entropy under linear constraints and to the maximization of quantum correlations.
description: 57 pages, 4 figures, v4 proofs simplified and exposition improved
title: ÐÐ°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¼ÐµÑÐ¾Ð´Ñ Ð² ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐµ. Ð Ð°Ð±Ð¾ÑÐ°Ñ ÑÐµÑÑÐ°Ð´Ñ
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
Creators: name: ÐÐ°Ð¹Ð´ÐµÐ½ÑÑÐµÐ²Ð°, ÐÐºÐ°ÑÐµÑÐ¸Ð½Ð°
Publisher: name: ÐÐ·Ð´-Ð²Ð¾ ÐÐ¾Ð»Ð¸ÑÐµÑÐ½. ÑÐ½-ÑÐ°
Year: 2014
Subjects: ÐÐ°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
ÐÐ¸Ð½ÐµÐ¹Ð½Ð¾Ðµ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
ÐÑÐ¸Ð½ÑÑÐ¸Ðµ ÑÐµÑÐµÐ½Ð¸Ð¹

description: 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, Ð¾Ð±ÑÑÐ°ÑÑÐ¸ÑÑÑ Ð¿Ð¾ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸ÑÐ¼ 080100 Â«Ð­ÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ°Â» Ð¸ 080200 Â«ÐÐµÐ½ÐµÐ´Ð¶Ð¼ÐµÐ½ÑÂ». Ð Ð½ÑÐ¼ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ Ð±Ð°Ð·Ð¾Ð²ÑÐµ ÑÐ°Ð·Ð´ÐµÐ»Ñ ÐºÑÑÑÐ° Â«ÐÐ°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¼ÐµÑÐ¾Ð´Ñ Ð² ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐµÂ», Ð¾ÑÐ½Ð¾ÑÑÑÐ¸ÐµÑÑ Ðº Ð·Ð°Ð´Ð°ÑÐ°Ð¼ Ð»Ð¸Ð½ÐµÐ¹Ð½Ð¾Ð¹ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¸ Ð¿ÑÐ¸Ð½ÑÑÐ¸Ñ ÑÐµÑÐµÐ½Ð¸Ð¹. ÐÐ·Ð»Ð¾Ð¶ÐµÐ½Ñ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¾ÑÐ½Ð¾Ð²Ñ, Ð¿Ð¾Ð´ÑÐ¾Ð´Ñ Ðº Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ñ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ¾-Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ Ð¸ Ð¼ÐµÑÐ¾Ð´Ñ ÑÐµÑÐµÐ½Ð¸Ñ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ Ð¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½ÑÐµÑÐºÐ¸Ñ Ð·Ð°Ð´Ð°Ñ Ð»Ð¸Ð½ÐµÐ¹Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ. ÐÐ¾ÑÐ¾Ð±Ð¸Ðµ ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¾ Ð±Ð¾Ð»ÑÑÐ¸Ð¼ ÐºÐ¾Ð»Ð¸ÑÐµÑÑÐ²Ð¾Ð¼ Ð¿ÑÐ¸Ð¼ÐµÑÐ¾Ð² Ð¸ Ð·Ð°Ð´Ð°Ñ Ð´Ð»Ñ ÑÐ°Ð¼Ð¾ÑÑÐ¾ÑÑÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð¸ Ð¼Ð¾Ð¶ÐµÑ Ð±ÑÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¾ Ð´Ð»Ñ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ñ Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð·Ð°Ð½ÑÑÐ¸Ð¹. 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 Ð²ÑÐ·Ð¾Ð², Ð¾Ð±ÑÑÐ°ÑÑÐ¸ÑÑÑ Ð¿Ð¾ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ¾-Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ð¼, ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¼ Ð¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½ÑÐµÑÐºÐ¸Ð¼ ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾ÑÑÑÐ¼. ÐÐ°ÑÐµÑÐ¸Ð°Ð» Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÐµÑ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½ÑÐ¼ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½ÑÐ¼ ÑÑÐ°Ð½Ð´Ð°ÑÑÐ°Ð¼ Ð²ÑÑÑÐµÐ³Ð¾ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð´Ð»Ñ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾ÑÑÐµÐ¹.
description: ÐÐµÑÐ°ÑÐ°ÐµÑÑÑ Ð¿Ð¾ ÑÐµÑÐµÐ½Ð¸Ñ ÑÐµÐ´Ð°ÐºÑÐ¸Ð¾Ð½Ð½Ð¾-Ð¸Ð·Ð´Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð³Ð¾ ÑÐ¾Ð²ÐµÑÐ° Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¾Ð³Ð¾ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑÐ°.
Nucleon form factors with dynamical twisted mass fermions
Creators: name: Alexandrou, Constantia
name: Baron, Remi
name: Brinet, Mariane
name: Carbonell, Jaume
name: Drach, Vincent
name: Harraud, Pierre-Antoine
name: Korzec, Tomasz
name: Koutsou, Giannis
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The electromagnetic and axial form factors of the nucleon are evaluated in twisted mass QCD with two degenerate flavors of light, dynamical quarks. The axial charge g_A, magnetic moment and the Dirac and Pauli radii are determined for pion masses in the range 300 MeV to 500 MeV.
Local moment approach to multi-orbital Anderson and Hubbard models
Creators: name: Kauch, Anna
name: Byczuk, Krzysztof
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The variational local moment approach (V-LMA), being a modification of the method due to Logan {\it et al}., is presented here. The existence of local moments is taken from the outset and their values are determined through variational principle by minimizing the corresponding ground state energy. Our variational procedure allows us to treat both fermi- and non-fermi liquid systems with many orbitals as well as insulators without any additional assumptions. It is proved by an explicit construction of the corresponding Ward functional that the V-LMA belongs to the class of conserving approximations. As an illustration, the V-LMA is used to solve the multi-orbital single impurity Anderson model. The method is also applied to solve the dynamical mean-field equations for the multi-orbital Hubbard model. In particular, the Mott-Hubbard metal--insulator transition is addressed within this approach.
description: 11 pages
Quantum statistical properties of some new classes of intelligent states associated with special quantum systems
Creators: name: Tavassoly, M. K.
name: Parsaiean, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Based on the {\it nonlinear coherent states} method, a general and simple algebraic formalism for the construction of \textit{`$f$-deformed intelligent states'} has been introduced. The structure has the potentiality to apply to systems with a known discrete spectrum as well as the generalized coherent states with known nonlinearity function $f (n)$. As some physical appearance of the proposed formalism, a few new classes of intelligent states associated with \textit{`center of-mass motion of a trapped ion'}, \textit{`harmonious states'} and \textit{`hydrogen-like spectrum'} have been realized. Finally, the nonclassicality of the obtained states has been investigated. To achieve this purpose the quantum statistical properties using the Mandel parameter and the squeezing of the quadratures of the radiation field corresponding to the introduced states have been established numerically.
description: 13pages
title: River phytoplankton biological controls on a microscopic level
Creators: name: Freeman, Anna
Publisher: name: University of Reading
Year: 2019

description: This thesis examines biological controls on phytoplankton in temperate lowland rivers on microscopic scale using the River Thames, a major UK river, as an example. The central part of the study explores river zooplankton-phytoplankton interactions in relation to physical environment, water chemistry and spatial patterns in the catchment. The zooplankton were surveyed weekly from 12 sites within the catchment (the Thames, its tributaries and Farmoor Reservoir) during spring-summer months in 2015, a year representative of the long-term seasonal low flow conditions. Six microcosm experiments were conducted to assess zooplankton grazing effect on phytoplankton diversity and abundance. They were supplemented with six laboratory experiments where the zooplankton were adjusted to replicate pre-bloom termination communities. The final part of the study looks at the relationships of phytoplankton, bacteria and chytrids* through experimental work involving incubation in thermal and low nutrients stress. Evidence was found that apart from water temperature, river flow and travel distance, zooplankton in the Thames are regulated by phytoplankton. In particular the presence of centric diatoms. It was also proposed that plankton may originate in certain tributaries of the Thames, especially those connected to canals, therefore the mixing of waters from these tributaries may be the key control on phytoplankton and consequently on zooplankton, rather than site-specific flow or water quality conditions. Microcosm experiments showed that zooplankton exert seasonal, site specific grazing effect on phytoplankton composition and abundance. Laboratory experiments reinforced the microcosms findings that physical environment is a stronger regulator of phytoplankton dynamics than zooplankton. Phytoplankton-bacteria-chytrids experiments revealed that both diatom metabolism and presence of attaching bacteria play an important role in diatom bloom termination and recycling. These results indicate a complex interplay between physical and biological environments in terms of nutrient availability and bacteria-diatom interactions. Further investigation is needed to unpick these complex relationships.
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐ°Ð¹ÑÐ° Ð´Ð»Ñ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ñ Ð¸Ð½ÑÐµÑÐ½ÐµÑ-Ð¾Ð»Ð¸Ð¼Ð¿Ð¸Ð°Ð´Ñ Ð¿Ð¾ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Â«ÐÐ¸Ð·Ð½ÐµÑ-Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸ÐºÐ°
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ°ÑÐºÐ¾Ð², ÐÐ°Ð´Ð¸Ð¼
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: ÐÐ½ÑÐµÑÐ½ÐµÑ
ÐÐ½ÑÐ¾ÑÐ¼Ð°ÑÐ¸ÐºÐ°
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description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸Ð·ÑÑÐµÐ½Ð° ÑÐ¼ÐµÐ¶Ð½Ð°Ñ Ð¿ÑÐµÐ´Ð¼ÐµÑÐ½Ð°Ñ Ð¾Ð±Ð»Ð°ÑÑÑ. ÐÑÐ¾Ð²ÐµÐ´ÑÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ·ÐºÐ¾Ð³Ð¾ Ð¿ÑÐ¾ÑÐ¸Ð»Ñ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ ÑÐ¸ÑÑÐµÐ¼ Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÐ¸. ÐÑÑÐ²Ð»ÐµÐ½Ñ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ ÑÐµÐ»ÐµÐ²Ð°Ð½ÑÐ½ÑÐµ Ð¸ ÑÑÑÐµÐºÑÐ¸Ð²Ð½ÑÐµ ÑÐµÑÐµÐ½Ð¸Ñ Ð´Ð»Ñ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð·Ð°Ð´Ð°Ð½Ð¸Ð¹ Ð¾Ð»Ð¸Ð¼Ð¿Ð¸Ð°Ð´Ñ Ð¸ Ð¸Ñ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ. ÐÐ¾Ð»ÑÑÐµÐ½ Ð¿ÑÐ¾ÑÐ¾ÑÐ¸Ð¿ Ð¸Ð½ÑÐµÑÐ½ÐµÑ-Ð¿Ð»Ð°ÑÑÐ¾ÑÐ¼Ñ Ð´Ð»Ñ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ñ Ð¾Ð½Ð»Ð°Ð¹Ð½-Ð¾Ð»Ð¸Ð¼Ð¿Ð¸Ð°Ð´.
CAIXA: a Catalogue of AGN In the XMM-Newton Archive II. Multiwavelength correlations
Creators: name: Bianchi, Stefano
name: Bonilla, Nuria Fonseca
name: Guainazzi, Matteo
name: Matt, Giorgio
name: Ponti, Gabriele
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We presented CAIXA, a Catalogue of AGN in the XMM-Newton Archive, in a companion paper. Here, a systematic search for correlations between the X-ray spectral properties and the multiwavelength data was performed for the sources in CAIXA. All the significant (>99.9% confidence level) correlations are discussed along with their physical implications on current models of AGN. Two main correlations are discussed in this paper: a) a very strong anti-correlation between the FWHM of the H$β$ optical line and the ratio between the soft and the hard X-ray luminosity. Although similar anti-correlations between optical line width and X-ray spectral steepness have already been discussed in the literature (see e.g., Laor et al. 1994, Boller et al. 1996, Brandt et al. 1997), we consider the formulation we present in this paper is more fundamental, as it links model-independent quantities. Coupled with a strong anti-correlation between the V to hard X-ray flux ratio and the H$β$ FHWM, it supports scenarios for the origin of the soft excess in AGN, which require strong suppression of the hard X-ray emission; b) a strong (and expected) correlation between the X-ray luminosity and the black hole mass. Its slope, flatter than 1, is consistent with Eddington ratio-dependent bolometric corrections, such as that recently proposed by Vasudevan & Fabian (2009). Moreover, we critically review through various statistical tests the role that distance biases play in the strong radio to X-ray luminosity correlation found in CAIXA and elsewhere; we conclude that only complete, unbiased samples (such as that recently published by Behar & Laor, 2008) should be used to draw observational constraints on the origin of radio emission in radio-quiet AGN.
description: 12 pages, 11 figures, accepted for publication in Astronomy and Astrophysics; two figures erroneously attached by astroph to the paper were removed
Exclusive Neutral Pion Electroproduction in the Deeply Virtual Regime
Creators: name: Fuchey, Eric
name: Camsonne, Alexandre
name: Camacho, Carlos Munoz
name: Mazouz, Malek
name: Collaboration, the Hall A DVCS
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present measurements of the ep->ep pi^0 cross section extracted at two values of four-momentum transfer Q^2=1.9 GeV^2 and Q^2=2.3 GeV^2 at Jefferson Lab Hall A. The kinematic range allows to study the evolution of the extracted hadronic tensor as a function of Q^2 and W. Results will be confronted with Regge inspired calculations and GPD predictions. An intepretation of our data within the framework of semi-inclusive deep inelastic scattering has also been attempted.
Spin resolved energy parametrization of a quasi-one-dimensional electron gas
Creators: name: Shulenburger, Luke
name: Casula, Michele
name: Senatore, Gaetano
name: Martin, Richard M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: By carrying out extensive lattice regularized diffusion Monte Carlo calculations, we study the spin and density dependence of the ground state energy for a quasi-one-dimensional electron gas, with harmonic transverse confinement and long-range $1/r$ interactions. We present a parametrization of the exchange-correlation energy suitable for spin density functional calculations, which fulfills exact low and high density limits.
description: 9 pages, 3 figures, corrected Eq. 17, added new reference, submitted to J. Phys. A: Math. Theor. as proceedings of the SCCS2008 conference in Camerino, Italy
Mapping spaces in Quasi-categories
Creators: name: Dugger, Daniel
name: Spivak, David I.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 55U40 (Primary) 18G30 (Secondary); 18B99 (Secondary)

description: We apply the Dwyer-Kan theory of homotopy function complexes in model categories to the study of mapping spaces in quasi-categories. Using this, together with our work on rigidification from [DS1], we give a streamlined proof of the Quillen equivalence between quasi-categories and simplicial categories. Some useful material about relative mapping spaces in quasi-categories is developed along the way.
title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼Ð°ÐºÐµÑÐ° Ð°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð±Ð°Ð»Ð°Ð½ÑÐ¸ÑÐ¾Ð²ÐºÐ¸ Ð»Ð¸ÑÐ¸Ð¹-Ð¸Ð¾Ð½Ð½ÑÑ Ð±Ð°ÑÐ°ÑÐµÐ¹ Ð´Ð»Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð² ÑÐ¾ÑÑÐ°Ð²Ðµ Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½ÑÑ ÑÐ¾Ð±Ð¾ÑÐ¾ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¸Ñ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ¾Ð²
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Ð¾ÑÐµÐ½ÐºÐ¾, ÐÐ½ÑÐ¾Ð½
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»Ð¸ÑÐ¸Ð¹-Ð¸Ð¾Ð½Ð½ÑÐµ Ð°ÐºÐºÑÐ¼ÑÐ»ÑÑÐ¾ÑÑ
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description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÑÑÑÑ Ð¼ÐµÑÐ¾Ð´Ñ Ð°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð±Ð°Ð»Ð°Ð½ÑÐ¸ÑÐ¾Ð²ÐºÐ¸ Ð»Ð¸ÑÐ¸Ð¹-Ð¸Ð¾Ð½Ð½ÑÑ Ð°ÐºÐºÑÐ¼ÑÐ»ÑÑÐ¾ÑÐ¾Ð². Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ â ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼Ð°ÐºÐµÑÐ½Ð¾Ð¹ Ð¿Ð»Ð°ÑÑ ÑÐ¸ÑÑÐµÐ¼Ñ Ð°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð±Ð°Ð»Ð°Ð½ÑÐ¸ÑÐ¾Ð²ÐºÐ¸ Ð»Ð¸ÑÐ¸Ð¹-Ð¸Ð¾Ð½Ð½ÑÑ Ð°ÐºÐºÑÐ¼ÑÐ»ÑÑÐ¾ÑÐ¾Ð². Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ ÑÐ°Ð±Ð¾ÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° ÑÑÐµÐ¼Ð° Ð°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð±Ð°Ð»Ð°Ð½ÑÐ¸ÑÐ¾Ð²ÐºÐ¸ Ð½Ð° ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ Ð¼Ð¸ÐºÑÐ¾ÑÑÐµÐ¼Ð°Ñ EMB1428 Ð¸ EMB1499Q Ð¾Ñ Texas Instruments, Ð¾ÑÑÑÐµÑÑÐ²Ð»ÑÑÑÐ°Ñ Ð±Ð°Ð»Ð°Ð½ÑÐ¸ÑÐ¾Ð²ÐºÑ ÑÐµÑÐµÐ· Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ½ÑÐ¹ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾Ñ. Ð¢Ð°Ðº Ð¶Ðµ Ð² ÑÐ¾Ð´Ðµ ÑÐ°Ð±Ð¾ÑÑ ÑÐºÐ¾Ð¼Ð¿Ð¾Ð½Ð¾Ð²Ð°Ð½Ð° Ð¼Ð°ÐºÐµÑÐ½Ð°Ñ Ð¿Ð»Ð°ÑÐ°. ÐÑÐ½Ð¾Ð²Ð½ÑÐµ Ð¿ÑÐµÐ¸Ð¼ÑÑÐµÑÑÐ²Ð° ÑÐ°ÐºÐ¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð±Ð°Ð»Ð°Ð½ÑÐ¸ÑÐ¾Ð²ÐºÐ¸ â Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÑ Ð±Ð°Ð»Ð°Ð½ÑÐ¸ÑÐ¾Ð²ÐºÐ¸ Ð±Ð¾Ð»ÑÑÐ¸Ð¼ ÑÐ¾ÐºÐ¾Ð¼ (Ð´Ð¾ 5 Ð), Ð²ÑÑÐ¾ÐºÐ°Ñ ÑÐºÐ¾ÑÐ¾ÑÑÑ Ð¸ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ Ð±Ð°Ð»Ð°Ð½ÑÐ¸ÑÐ¾Ð²ÐºÐ¸ (Ð¼Ð°Ð»ÑÐ¹ Ð½Ð°Ð³ÑÐµÐ² Ð¿ÑÐ¸ ÑÐ°Ð±Ð¾ÑÐµ, Ð²ÑÑÐ¾ÐºÐ¸Ð¹ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½Ñ Ð¿Ð¾Ð»ÐµÐ·Ð½Ð¾Ð³Ð¾ Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ). Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½Ð°Ñ Ð¼Ð°ÐºÐµÑÐ½Ð°Ñ Ð¿Ð»Ð°ÑÐ° Ð¼Ð¾Ð¶ÐµÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÑÑÑ Ð² Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½ÑÑ ÑÐ¾Ð±Ð¾ÑÐ¾ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ñ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ°Ñ.
The main-sequence rotation-colour relation in the Coma Berenices open cluster
Creators: name: Cameron, A. Collier
name: Davidson, V. A.
name: Hebb, L.
name: Skinner, G.
name: Anderson, D. R.
name: Christian, D. J.
name: Clarkson, W. I.
name: Enoch, B.
name: Irwin, J.
name: Joshi, Y.
name: Haswell, C. A.
name: Hellier, C.
name: Horne, K. D.
name: Kane, S. R.
name: Lister, T. A.
name: Maxted, P. F. L.
name: Norton, A. J.
name: Parley, N.
name: Pollacco, D.
name: Ryans, R.
name: Scholz, A.
name: Skillen, I.
name: Smalley, B.
name: Street, R. A.
name: West, R. G.
name: Wilson, D. M.
name: Wheatley, P. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the results of a photometric survey of rotation rates in the Coma Berenices (Melotte 111) open cluster, using data obtained as part of the SuperWASP exoplanetary transit-search programme. The goal of the Coma survey was to measure precise rotation periods for main-sequence F, G and K dwarfs in this intermediate-age (~600 Myr) cluster, and to determine the extent to which magnetic braking has caused the stellar spin periods to converge. We find a tight, almost linear relationship between rotation period and J-K colour with a root-mean square scatter of only 2 percent. The relation is similar to that seen among F, G and K stars in the Hyades. Such strong convergence can only be explained if angular momentum is not at present being transferred from a reservoir in the deep stellar interiors to the surface layers. We conclude that the coupling timescale for angular momentum transport from a rapidly-spinning radiative core to the outer convective zone must be substantially shorter than the cluster age, and that from the age of Coma onward, stars rotate effectively as solid bodies. The existence of a tight relationship between stellar mass and rotation period at a given age supports the use of stellar rotation period as an age indicator in F, G and K stars of Hyades age and older. We demonstrate that individual stellar ages can be determined within the Coma population with an internal precision of order 9 percent (RMS), using a standard magnetic braking law in which rotation period increases with the square root of stellar age. We find that a slight modification to the magnetic-braking power law, P proportional to t^0.56, yields rotational and asteroseismological ages in good agreement for the Sun and other stars of solar age for which p-mode studies and photometric rotation periods have been published.
description: 14 pages, 10 figures, accepted for publication in MNRAS