WorldWideScience

Sample records for ground breaking ceremony

  1. Leaders break ground for INFINITY

    Science.gov (United States)

    2008-01-01

    Community leaders from Mississippi and Louisiana break ground for the new INFINITY at NASA Stennis Space Center facility during a Nov. 20 ceremony. Groundbreaking participants included (l to r): Gottfried Construction representative John Smith, Mississippi Highway Commissioner Wayne Brown, INFINITY board member and Apollo 13 astronaut Fred Haise, Stennis Director Gene Goldman, Studio South representative David Hardy, Leo Seal Jr. family representative Virginia Wagner, Hancock Bank President George Schloegel, Mississippi Rep. J.P. Compretta, Mississippi Band of Choctaw Indians representative Charlie Benn and Louisiana Sen. A.G. Crowe.

  2. The LEP groundbreaking ceremony

    CERN Multimedia

    1983-01-01

    French President Francois Mitterand and Swiss President Pierre Aubert visiting CERN for the LEP ground-breaking ceremony on 13 September 1983. They are seen here with Emilio Picasso, LEP project director, and Herwig Schopper, CERN's then Director-General.

  3. Astronomical Orientations of Bora Ceremonial Grounds in Southeast Australia

    CERN Document Server

    Fuller, Robert S; Norris, Ray P

    2013-01-01

    Ethnographic evidence indicates that bora (initiation) ceremonial sites in southeast Australia, which typically comprise a pair of circles connected by a pathway, are symbolically reflected in the Milky Way as the 'Sky Bora'. This evidence also indicates that the position of the Sky Bora signifies the time of the year when initiation ceremonies are held. We use archaeological data to test the hypothesis that southeast Australian bora grounds have a preferred orientation to the position of the Milky Way in the night sky in August, when the plane of the galaxy from Crux to Sagittarius is roughly vertical in the evening sky to the south-southwest. We accomplish this by measuring the orientations of 68 bora grounds using a combination of data from the archaeological literature and site cards in the New South Wales Aboriginal Heritage Information Management System database. We find that bora grounds have a preferred orientation to the south and southwest, consistent with the Sky Bora hypothesis. Monte Carlo statis...

  4. ALMA Partners Break Ground on World's Largest Millimeter Wavelength Telescope

    Science.gov (United States)

    2003-11-01

    kilometers (8.7 miles) across. This will allow the telescope to observe the fine-scale details of astronomical objects. At its smallest, approximately 150 meters (492 feet) across, ALMA will be able to study the large-scale structures of these same objects. ALMA will function as an interferometer, meaning it will combine the signals from all its antennas (two at a time) to simulate a telescope the size of the distance between the antennas. With 64 antennas, ALMA will generate 2016 individual antenna pairs (baselines) during its observations. To handle this much data, ALMA will rely on a very powerful, specialized computer called a correlator, which will perform 16,000 million-million operations per second. Currently, the two prototype ALMA antennas are undergoing rigorous testing at the NRAO's Very Large Array site, near Socorro, New Mexico. INTERNATIONAL COLLABORATION For this ambitious project, ALMA has become a joint effort among several nations and scientific institutions. This will be the first truly global project of ground-based astronomy, an essential development in view of the increasing technological sophistication and the high costs of the front line astronomy installations. "Today marks the official start of construction," said Dr. Colwell. "But the ALMA partnership also breaks ground with a novel collaboration that ensures equal access by astronomers on at least three continents. International partnerships are quickly becoming the norm of the millennium, enabling organizations and nations to combine funds to achieve greater scientific capability. NSF is proud to participate in the creation of an instrument that will provide unprecedented power for science and immeasurable knowledge for all." At the groundbreaking in Chile, the ALMA partners unveiled the ALMA logo.

  5. Breaking new ground: mining, minerals and sustainable development

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    Society's continuing need for minerals is clear. However, the way in which minerals are extracted, processed, used and recycled - in the context of sustainable development - is less than clear and often bitterly controversial. This publication presents the principal conclusions of the IIED/WBCSD project Mining, Minerals and Sustainable Development (MMSD) - the most ambitious study yet undertaken on the role of minerals in sustainable development carried out by the IIED and World Bank Council for Sustainable Development (WBCSD). Drawing on the project's two-year process of consultation and research, Breaking New Ground describes the minerals sector and its relationship with concepts of sustainable development, and offers an 'Agenda for Change' for immediate and future actions. The report is based on four regional processes, activities in 16 countries and over 200 pieces of commissioned research contained in an accompanying CD-ROM. The report calls for elaboration of an industry protocol for sustainable development; a commitment to address the negative legacy of the past; support for legalization of artisanal and small-scale mining; integrated management of the full mineral chain (exploration, extraction, smelting, refining, fabrication, manufacturing, use, reuse, recycling and disposal); more effective government management of mineral investment; and a more equitable international trade regime for minerals.

  6. Traces of Lorentz symmetry breaking in a hydrogen atom at ground state

    Science.gov (United States)

    Borges, L. H. C.; Barone, F. A.

    2016-02-01

    Some traces of a specific Lorentz symmetry breaking scenario in the ground state of the hydrogen atom are investigated. We use standard Rayleigh-Schrödinger perturbation theory in order to obtain the corrections to the ground state energy and the wave function. It is shown that an induced four-pole moment arises, due to the Lorentz symmetry breaking. The model considered is the one studied in Borges et al. (Eur Phys J C 74:2937, 2014), where the Lorentz symmetry is broken in the electromagnetic sector.

  7. Traces of Lorentz symmetry breaking in a Hydrogen atom at ground state

    CERN Document Server

    Borges, Luiz Henrique de Campos

    2016-01-01

    Some traces of a specific Lorentz symmetry breaking scenario in the ground state of the Hydrogen atom are investigated. It is used standard Rayleigh-Schr\\"odinger perturbation theory in order to obtain the corrections to the the ground state energy and wave function. It is shown that an induced four-pole moment arises, due to the Lorentz symmetry breaking. The model considered is the one studied in reference Eur. Phys. J. C {\\bf 74}, 2937 (2014), where the Lorentz symmetry is broken in the electromagnetic sector.

  8. Traces of Lorentz symmetry breaking in a hydrogen atom at ground state

    Energy Technology Data Exchange (ETDEWEB)

    Borges, L.H.C. [Universidade Federal do ABC, Centro de Ciencias Naturais e Humanas, Santo Andre, SP (Brazil); Barone, F.A. [IFQ-Universidade Federal de Itajuba, Itajuba, MG (Brazil)

    2016-02-15

    Some traces of a specific Lorentz symmetry breaking scenario in the ground state of the hydrogen atom are investigated. We use standard Rayleigh-Schroedinger perturbation theory in order to obtain the corrections to the ground state energy and the wave function. It is shown that an induced four-pole moment arises, due to the Lorentz symmetry breaking. The model considered is the one studied in Borges et al. (Eur Phys J C 74:2937, 2014), where the Lorentz symmetry is broken in the electromagnetic sector. (orig.)

  9. The Art of Perception: Museums Breaking Ground in Law Enforcement Training

    Science.gov (United States)

    Herman, Amy E.

    2011-01-01

    The Art of Perception is a professional development program that uses the analysis of works of art to help participants re-examine their responsibilities in various agencies of law enforcement, refresh their sense of inquiry, and reinvigorate the language they use to communicate on the job. "The Art of Perception: Museums Breaking Ground in Law…

  10. Television Ceremonial Events.

    Science.gov (United States)

    Dayan, Daniel; Katz, Elihu

    1985-01-01

    Analyzes the impact of televised ceremonies (such as the marriage of Prince Charles and Lady Diana) as "media events" which allow viewers to vicariously enter into the ceremony. Compares them with cult movies that, over repeated viewing, encourage audience "participation." Focuses on the narrator's/commentator's role in shaping…

  11. CPECC Broke Ground for EPC Project in Algeria

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    @@ On August 20, 2005, ground breaking ceremony of EPC project, a condensate refinery with a annual capacity of 5million tons, was held in Skikda, western Algeria, its construction will be undertaken by China Petroleum Engineering Construction Company (CPECC), a subsidiary of CNPC. Algerian President Abdelaziz Bouteflika presented at the ceremony with his governmental officials. Present were top managers of the project owner, Algerian State Oil Company (SONATRACH), and Mr. Wang Yilin, Vice President of CNPC and CNPC delegation.

  12. Ceremony for ATLAS cavern

    CERN Multimedia

    2003-01-01

    Wednesday 4 June will be a special day for CERN. The President of the Swiss Confederation, Pascal Couchepin, will officially inaugurate the huge ATLAS cavern now that the civil engineering works have ended. The inauguration ceremony will be held in the ATLAS surface building, with speeches by Pascal Couchepin and CERN, ATLAS and civil engineering personalities. This ceremony will be Webcast live. To access the Webcast on 4 June at 18h00 go to CERN Intranet home page or the following address : http://webcast.cern.ch/live.php

  13. SUSY breaking by a metastable ground state: Why the early Universe preferred the non-supersymmetric vacuum

    CERN Document Server

    Abel, S A; Jaeckel, J; Khoze, V V; Abel, Steven A.; Chu, Chong-Sun; Jaeckel, Joerg; Khoze, Valentin V.

    2007-01-01

    Supersymmetry breaking in a metastable vacuum is re-examined in a cosmological context. It is shown that thermal effects generically drive the Universe to the metastable minimum even if it begins in the supersymmetry-preserving one. This is a generic feature of the ISS models of metastable supersymmetry breaking due to the fact that SUSY preserving vacua contain fewer light degrees of freedom than the metastable ground state at the origin. These models of metastable SUSY breaking are thus placed on an equal footing with the more usual dynamical SUSY breaking scenarios.

  14. Nobel Prize ceremony 2013

    CERN Multimedia

    2013-01-01

    On 10 December 2013 particle physics took central stage at the Nobel ceremony in Stockholm. Among the invitees were Fabiola Gianotti, former ATLAS spokesperson, Joseph Incandela, CMS Spokesperson, and CERN theorist Luis Alvarez-Gaume. They share their feelings of the memorable day with us.   Overview of the 2013 Nobel Prize Award Ceremony at the Stockholm Concert Hall. © Nobel Media AB 2013. Photo: Alex Ljungdahl. Fabiola Gianotti and Joe Incandela, at the Nobel Banquet in the Stockholm City Hall.   "It was an honour and a thrill for us to attend such a memorable Nobel prize ceremony and we are very grateful to Peter Higgs for having included us among his invited guests. The ceremony held some special moments for the LHC. In his speech prior to the award of the Nobel prize to Francois Englert and Peter Higgs by King Carl XVI Gustaf of Sweden, Lars Brink (Chair of the Physics Nobel Prize Committee) stressed the importance of the results from the LHC exper...

  15. The 2010 Nobel Prize in physics—ground-breaking experiments on graphene

    Science.gov (United States)

    Hancock, Y.

    2011-11-01

    The 2010 Nobel Prize in physics was awarded to Professors Andre Geim and Konstantin Novoselov for their ground-breaking experiments on graphene, a single atomic layer of carbon, and more generally, for their pioneering work in uncovering a new class of materials, namely two-dimensional atomic crystals. This paper gives an accessible account and review of the story of graphene; from its first description in the literature, to the realization and confirmation of its remarkable properties, through to its impressive potential for broad-reaching applications. The story of graphene is written within the context of the enormous impact that Geim and Novoselovs' work has had on this field of research, and recounts their personal pathways of discovery, which ultimately led to their award of the 2010 Nobel Prize.

  16. NACA Groundbreaking Ceremony

    Science.gov (United States)

    1953-01-01

    The NACA High-Speed Flight Research Station, had initially been subordinate to the Langley Memorial Aeronautical Laboratory near Hampton, Virginia, but as the flight research in the Mojave Desert increasingly proved its worth after 1946, it made sense to make the Flight Research Station a separate entity reporting directly to the headquarters of the National Advisory Committee for Aeronautics. But an autonomous center required all the trappings of a major research facility, including good quarters. With the adoption of the Edwards 'Master Plan,' the Air Force had committed itself to moving from its old South Base to a new location midway between the South and North Bases. The NACA would have to move also--so why not take advantage of the situation and move into a full-blown research facility. The Air Force issued a lease to NACA for a location on the northwestern shore of the Roger Dry Lake. Construction started on the NACA station in early February 1953. On a windy day, January 27, 1953, at a groundbreaking ceremony stood left to right: Gerald Truszynski, Head of Instrumentation Division; Joseph Vensel, Head of the Operations Branch; Walter Williams, Head of the Station, scooping the first shovel full of dirt; Marion Kent, Head of Personnel; and California state official Arthur Samet.

  17. Astronomers Break Ground on Atacama Large Millimeter Array (ALMA) - World's Largest Millimeter Wavelength Telescope

    Science.gov (United States)

    2003-11-01

    Scientists and dignitaries from Europe, North America and Chile are breaking ground today (Thursday, November 6, 2003) on what will be the world's largest, most sensitive radio telescope operating at millimeter wavelengths . ALMA - the "Atacama Large Millimeter Array" - will be a single instrument composed of 64 high-precision antennas located in the II Region of Chile, in the District of San Pedro de Atacama, at the Chajnantor altiplano, 5,000 metres above sea level. ALMA 's primary function will be to observe and image with unprecedented clarity the enigmatic cold regions of the Universe, which are optically dark, yet shine brightly in the millimetre portion of the electromagnetic spectrum. The Atacama Large Millimeter Array (ALMA) is an international astronomy facility. ALMA is an equal partnership between Europe and North America, in cooperation with the Republic of Chile, and is funded in North America by the U.S. National Science Foundation (NSF) in cooperation with the National Research Council of Canada (NRC), and in Europe by the European Southern Observatory (ESO) and Spain. ALMA construction and operations are led on behalf of North America by the National Radio Astronomy Observatory (NRAO), which is managed by Associated Universities, Inc. (AUI), and on behalf of Europe by ESO. " ALMA will be a giant leap forward for our studies of this relatively little explored spectral window towards the Universe" , said Dr. Catherine Cesarsky , Director General of ESO. "With ESO leading the European part of this ambitious and forward-looking project, the impact of ALMA will be felt in wide circles on our continent. Together with our partners in North America and Chile, we are all looking forward to the truly outstanding opportunities that will be offered by ALMA , also to young scientists and engineers" . " The U.S. National Science Foundation joins today with our North American partner, Canada, and with the European Southern Observatory, Spain, and Chile to prepare

  18. Jinchuan Group Breaks Ground for a 300,000-ton Copper Deep Processing Project

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    <正>According to Jinchang Municipal Government of Gansu,on August 21,Jinchuan Group broke ground for its 400,000-ton ionic membrane caustic soda project,300,000-ton PVC project,300,000-ton copper deep processing project,

  19. Symmetry breaking in noncommutative finite temperature λphi4 theory with a nonuniform ground state

    Science.gov (United States)

    Hernández, J. M.; Ramírez, C.; Sánchez, M.

    2014-05-01

    We consider the CJT effective action at finite temperature for a noncommutative real scalar field theory, with noncommutativity among space and time variables. We study the solutions of a stripe type nonuniform background, which depends on space and time. The analysis in the first approximation shows that such solutions appear in the planar limit, but also under normal anisotropic noncommutativity. Further we show that the transition from the uniform ordered phase to the non uniform one is first order and that the critical temperature depends on the nonuniformity of the ground state.

  20. The Mourning Ceremony for The Victims

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ At 14:28 on the afternoon of May 19, CCPIT held the Mourning Ceremony for the victims of the May-12 Wenchuan 8.0-magnitude earthquake. Over 300 people including all staff members of CCPIT offices and departments as well as CCPIT enterprises and institutions at-tended the ceremony and mourned for the victims for three min-utes, expressing their deeply-felt grief.

  1. Transition by breaking of analyticity in the ground state of Josephson junction arrays as a static signature of the vortex jamming transition

    KAUST Repository

    Nogawa, Tomoaki

    2012-05-22

    We investigate the ground state of the irrationally frustrated Josephson junction array with a controlling anisotropy parameter λ that is the ratio of the longitudinal Josephson coupling to the transverse one. We find that the ground state has one-dimensional periodicity whose reciprocal lattice vector depends on λ and is incommensurate with the substrate lattice. Approaching the isotropic point λ=1, the so-called hull function of the ground state exhibits analyticity breaking similar to the Aubry transition in the Frenkel-Kontorova model. We find a scaling law for the harmonic spectrum of the hull functions, which suggests the existence of a characteristic length scale diverging at the isotropic point. This critical behavior is directly connected to the jamming transition previously observed in the current-voltage characteristics by a numerical simulation. On top of the ground state there is a gapless continuous band of metastable states, which exhibit the same critical behavior as the ground state. © 2012 American Physical Society.

  2. Ceremony in memory of Mervyn Hine

    CERN Multimedia

    2004-01-01

    A short ceremony in memory of Mervyn Hine will be held in the CERN Council Chamber on Thursday 21 October at 16:00. Kjell Johnsen, Henri Laporte, Gabriel Minder, Paolo Zanella, Ben Segal and one of the Hine family will speak about the person whom they knew and about various aspects of his extremely varied career at CERN. Various records (written, photographic and video) will be briefly presented. The ceremony is expected to last about one hour and will be followed by a reception in the Glass Box. David Williams. DSU-EU

  3. Summer Grand Summons Ceremony in Tashilhungpo Monastery

    Institute of Scientific and Technical Information of China (English)

    XILHU

    2003-01-01

    Every year, Tashilhungpo Monastery celebrates the Summer Grand Summons Ceremony (called Ximoqenbo in Tibetan) in the eighth month of the Tibetan calendar. All the monks and lay people of the Xigaze area get together to watch Chammo, which is a kind of sorcerer's dance. It is also a Tantric ritual

  4. Inauguration ceremony for the Intersecting Storage Rings

    CERN Multimedia

    1971-01-01

    The inauguration ceremony for the Intersecting Storage Rings (ISR) was held on 16 October 1971. Kjell Johnsen is seen in the picture handing a symbolic key to the ISR to Edoardo Amaldi. From left to right on the podium: Victor Frederik Weisskopf, former Director-General; M Antonioz; Willibald Jentschke as Director-General of CERN, and on the other side Werner Heisenberg.

  5. Corporate Responsibility as Myth and Ceremony

    DEFF Research Database (Denmark)

    Haack, Patrick; Martignoni, Dirk; Schoeneborn, Dennis

    Organizations adopt corporate responsibility (CR) policies often ceremonially, meaning that policy adoption is not substantive and lacks alignment with actual practice. Prior research in institutional theory has largely assumed as static view of adoption and suggests that a situation of opacity (i...... governance mechanism and (2) the institutional theory concepts of decoupling and (re-)coupling....

  6. 28 CFR 551.16 - Marriage ceremony in the institution.

    Science.gov (United States)

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Marriage ceremony in the institution. 551... MANAGEMENT MISCELLANEOUS Marriages of Inmates § 551.16 Marriage ceremony in the institution. (a) The Warden may approve the use of institution facilities for an inmate's marriage ceremony. If a...

  7. Awarding Ceremony and New Arrivals of Blissliving

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ The long expected Lan-Blisslivinghome Global Home Design Contest announced the winners on April 17 in Beijing.Young designers,Wang Yingying from Beijing and Qiang Xiaoning from Shanxi stood out from the crowd and won the first and second prize respectively.Malgorzata Czuchraj from Poland ranks the third.On the awarding ceremony,Blisslivinghome presented its autumn and winter new arrivals.

  8. Kocel Steel Foundry Grand Opening Ceremony

    Institute of Scientific and Technical Information of China (English)

    TIAN Shi-jiang

    2006-01-01

    @@ On May 9, 2006 the Grand Opening ceremony of Kocel Steel Foundry Co., Ltd. was held in the National Economic and Technological Development Zone in Yinchuan City, Ningxia, China. Kocel Steel Foundry Co.,Ltd. is a large scale enterprise producing steel castings and it is jointly established by Ningxia Kocel Group,Changcheng Suzaki Machine & Foundry Co., Ltd. and Voestalpine Giesserei Linz GmbH, Austria.

  9. Corporate Responsibility as Myth and Ceremony

    DEFF Research Database (Denmark)

    Haack, Patrick; Martignoni, Dirk; Schoeneborn, Dennis

    Organizations adopt corporate responsibility (CR) policies often ceremonially, meaning that policy adoption is not substantive and lacks alignment with actual practice. Prior research in institutional theory has largely assumed as static view of adoption and suggests that a situation of opacity (i...... a three-state Markov chain model, we specify the boundary conditions under which initial opacity paired with a change towards transparency (i.e. the relative ease or possibility of evaluation) maximizes the overall number of substantive adoptions. Our findings suggest that the institutionalization of CR-related...... governance mechanism and (2) the institutional theory concepts of decoupling and (re-)coupling....

  10. Definitional Ceremonies: Integrating Community into Multicultural Counseling Sessions

    Science.gov (United States)

    Bitter, James Robert; Robertson, Patricia E.; Roig, Grace; Disqueact, J. Graham

    2004-01-01

    Definitional Ceremonies are used as a forum for integrating members of diverse cultures into multicultural counseling sessions. The authors provide a philosophical foundation, implementation process, and excerpts from a typescript of a recent definitional ceremony involving a women and her mother, both recently in the United States from Panama.

  11. The Ceremonial Elements of Non-Native Cultures.

    Science.gov (United States)

    Horwood, Bert

    1994-01-01

    Explores reasons behind the wrongful adoption of Native American ceremonies by Euro-Americans. Focuses on the need for ceremony, its relevance to environmental education, and the fact that some immigrant cultural traditions neither fit this new land nor value the earth. Suggests how non-Natives can express their connection to the land by creating…

  12. 20 CFR 222.12 - Ceremonial marriage relationship.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 1 2010-04-01 2010-04-01 false Ceremonial marriage relationship. 222.12 Section 222.12 Employees' Benefits RAILROAD RETIREMENT BOARD REGULATIONS UNDER THE RAILROAD RETIREMENT ACT FAMILY RELATIONSHIPS Relationship as Wife, Husband, or Widow(er) § 222.12 Ceremonial...

  13. The First Olympus Confocal Micro Imaging Competition China Award Ceremony

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    On January 20, 2010, the award ceremony for the First Olympus Confocal Micro Imaging Competition China was held in Beijing. After rounds of judging and competition, 16 photos finally won the prize.The First Olympus Confocal MicroImaging Competition China Award Ceremony was organized by Sciencenet.cn

  14. HIV/AIDS Universal Precaution Practices in Sun Dance Ceremonies.

    Science.gov (United States)

    Giroux, Jennifer; Takehara, Joan; Asetoyer, Charon; Welty, Thomas

    1997-01-01

    The Aberdeen (South Dakota) Area Indian Health Service has sponsored educational projects to reduce risk of HIV transmission via skin piercing and flesh offerings during traditional Sun Dance ceremonies. Projects emphasized universal precautions, provided medical supplies, and respected the sacredness of the ceremony. Evaluation indicates that…

  15. The wedding act in Serbia in the light of social changes: A study of traditional and contemporary ceremony

    Directory of Open Access Journals (Sweden)

    Pavićević Aleksandra B.

    2002-01-01

    Full Text Available Traditional form of getting married included wedding ceremony in which we had, among other rituals, obligatory church wedding. Church wedding was omitted in certain cases, as it was, for example, marriage of underage partners. When transformation of traditional life begun, church wedding was omitted more often, though it was still norm (in traditional and civilian law. In this period, traditional wedding ceremony was considered as popular way of marking the start of new wedding community. At the end of 19th and beginning of 20th century, the civilian ceremony of getting married was introduced, but most of couples still got married in church. This was custom until The Second World War, when the church form of wedding became undesirable. Communist ideology meant the complete breaking up with religious and national traditions. This brought to the reduction of numbers of church weddings, but not to their complete leaving. Economic crises, war destructions, low life standards and disturbance of system of values, at the end of 20th cent resulted in retraditionalisation processes as for instance, revitalization of church life, or some of it’s elements. Last few years in Serbia, young couples approach both the civilian marriage -because it is an obligation and the church marriage -because of different reasons: need to make continuity with historical heritage, or to invent new one. I will try to show this course of transformation of act of getting married, through analyses of social meaning of some wedding ceremony elements.

  16. Remarks delivered at the awards ceremony

    Energy Technology Data Exchange (ETDEWEB)

    Brumberger, H.; Hendricks, R.W. (eds.)

    1978-06-01

    For almost four decades, the distinguished trio of professors, W. W. Beeman, A. Guinier, and O. Kratky, have provided leadership of the field of small-angle scattering through both their teaching and their personal research. Collectively, they have authored or coauthored over 400 scientific articles and reviews, several books, and have been associated with over 140 graduate and postdoctoral students. It was thus appropriate that each should be honored for his outstanding contributions to the field at the Fourth International Conference on Small-Angle Scattering which was held in Gatlinburg, Tennessee, in October 1977. The Board of Directors of the Special Interest Group on Small-Angle Scattering of the American Crystallographic Association in conjunction with the Conference Organizing Committee, arranged a special awards ceremony during which each honoree presented his personal reminiscences of the development of small-angle scattering in his own laboratory. This report is a record of this event.

  17. Poethical: Breaking Ground for Reconstruction

    Science.gov (United States)

    Krojer, Jo; Holge-Hazelton, Bibi

    2008-01-01

    Departing from a methodological experiment performed by the authors, this article reflects on and discusses issues of ethics and politics in poetic strategies of "representation". In relation to the experiment the article questions how to conceive the notion of connectedness between empirical time and the reconstruction of it in poststructuralist…

  18. Changes in spirituality among ayahuasca ceremony novice participants.

    Science.gov (United States)

    Trichter, Stephen; Klimo, Jon; Krippner, Stanley

    2009-06-01

    Ayahuasca, a hallucinogenic plant brew from the Amazon basin used as part of healing ceremonies by the local indigenous people of the region for centuries, is now being consumed by growing numbers of people throughout the world. Anecdotal evidence and previous research suggest that there are spiritual effects experienced among participants who take part in ayahuasca ceremonies. The current study examined whether novice participants' spirituality was affected through participation in an ayahuasca ceremony, and if so, how. A mixed-design method was used, comparing those participating in an ayahuasca ceremony to those who did not participate. This investigation used the Peak Experience Profile, the Spiritual Well-being Scale, and the Mysticism Scale as quantitative measures. Participant interviews and written accounts of ceremony experiences were analyzed. Results showed that neither the SWB score nor the M-Scale score increased significantly after participating in an ayahuasca ceremony. However, it was found that the higher the PEP score, the greater the positive change in SWB and M-Scale scores. Qualitative data revealed common spiritual themes in many of the participants' interviews and written accounts. Experiential differences were displayed within the ayahuasca ceremony group, warranting continued investigation into, and identification of, various confounding variables that prompt reported changes in spirituality within some participants while not in others.

  19. Lavender Commencement Ceremony to honor LGBT graduates at Virginia Tech

    OpenAIRE

    Shannon, Kelly Baker

    2010-01-01

    The Lesbian, Gay, Bisexual, and Transgender (LGBT) Caucus at Virginia Tech is sponsoring the Second Annual Lavender Commencement Ceremony, which will be held on May 13 at 11 a.m. in the Old Dominion Ballroom of Squires Student Center.

  20. Signing Ceremony Between CAS and Schneider Electric Held in Beijing

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ On April 9, 2008, a strategic cooperation signing ceremony between the China Association for Stan-dardization (CAS) and Schneider Electric took place at the Diao Yutai Guest Hotel in Beijing. Attending the signing ceremony were Mr Sun Xiaokang, Duty Director of SAC, Mr. Ma Lingcong, Secretary General of CAS, Mr. Noel Girard, Schneider Electric Marketing Director, Mr. Guy Dufrdi sse, Chairman of Schneider Electric (China) and more than twenty high-ranking managers from both companies.

  1. Ribbon-cutting ceremony for Building 774

    CERN Multimedia

    Corinne Pralavorio

    2015-01-01

    On Friday, 12 June, the brand-new Building 774 on the Prévessin site was officially opened by Rolf Heuer, Director-General of CERN, and Stéphane Donnot, sous-préfet of Gex, together with Serge Moulon, deputy mayor of Saint-Genis-Pouilly, and Aurélie Charillon, mayor of Prévessin-Moëns and a member of the Conseil départemental de l’Ain.     Left to right: Serge Moulon, deputy mayor of Saint-Genis-Pouilly, Stéphane Donnot, sous-préfet of Gex, Rolf Heuer, Director-General of CERN, and Aurélie Charillon, mayor of Prévessin-Moëns and a member of the Conseil départemental de l’Ain.   “Thanks to its innovative architecture, this iconic building is the jewel in the crown of the French site,” said Heuer. Prior to the ceremony, the Director-General had met the politicians to discuss relations between CERN a...

  2. Breaking the silence

    DEFF Research Database (Denmark)

    Konradsen, Hanne; Kirkevold, Marit; McCallin, Antoinette

    2012-01-01

    and individual interviews were analyzed using the grounded theory method. The findings revealed that the main concern of the patients was feeling isolated, which was resolved using a process of interactional integration. Interactional integration begins by breaking the silence to enable the progression from...

  3. A World of Love 2008 Music Grand Ceremony

    Institute of Scientific and Technical Information of China (English)

    Bai; Yifeng

    2008-01-01

      Under the guidance of the theme slogan of the 29th Olympic Games - One World One Dream, with dream, love and dedication as its theme, the 2008 Music Grand Ceremony & 1000 People Charity Concert on 100 days countdown to Paralympic Games is officially launched on December 22, 2007. The 2008 Music Grand Ceremony is sponsored by China Disabled Persons' Federation, and co-hosted by National Paralympic Committee of China, China Huaxia Culture Group and Beijing Hanbohongyuan Culture Development Co., Ltd., aiming at supporting Chinese paralympic delegation in the 2008 Paralympic Games.……

  4. A World of Love 2008 Music Grand Ceremony

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ Under the guidance of the theme slogan of the 29th Olympic Games - One World One Dream, with dream, love and dedication as its theme, the 2008 Music Grand Ceremony & 1000 People Charity Concert on 100 days countdown to Paralympic Games is officially launched on December 22, 2007. The 2008 Music Grand Ceremony is sponsored by China Disabled Persons' Federation, and co-hosted by National Paralympic Committee of China, China Huaxia Culture Group and Beijing Hanbohongyuan Culture Development Co., Ltd., aiming at supporting Chinese paralympic delegation in the 2008 Paralympic Games.

  5. Launch Ceremony for the U.S-China Standards Portal

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ On November 9th, 2006, SAC (Standardization Administration of the People's Republic of China), held "Launch Ceremony for the U.S-China Standards Platform" in Beijing. Mr.Liu Pingjun, Administrator of SAC, Mr. Buhadi, President of US National Standard Association, and Ms. Kelin, NIST, who spoke on behalf of the president of NIST, Mr.Jeffrey, separately delivered a warm address on the ceremony. In their speeches, they were highly complimentary about recent satisfactory cooperation in standardization between China and USA. To put "the U.S-China Standards Platform" into operation will be beneficial to both sides' standardization cooperation and exchange.

  6. Break It

    Institute of Scientific and Technical Information of China (English)

    MATTHEW PLOWRIGHT; GWYNN GUILFORD

    2008-01-01

    @@ Resolutions are not natural - otherwise you wouldn't have to "resolve" to execute them. This year, instead of planning how to commit to a slew of unattainable goals, why not prepare for breaking your resolutions the right way?

  7. The ceremony for promulgation of China Print Awards was held

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    The first China Print Awards, spon- sored by Printing and Printing Equipment Industries Association of China, The Hong Kong Printers Association, Taiwan Print- ing & Machinery, Material Industry Asso- ciation and Macao Printing Association, started since March 2006.The ceremony for promulgation of China Print Awards was held on 29th August,

  8. 20 CFR 404.725 - Evidence of a valid ceremonial marriage.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Evidence of a valid ceremonial marriage. 404... DISABILITY INSURANCE (1950- ) Evidence Evidence of Age, Marriage, and Death § 404.725 Evidence of a valid ceremonial marriage. (a) General. A valid ceremonial marriage is one that follows procedures set by law...

  9. The Visual Elegance of Ts'its'tsi'nako and the Other Invisible Characters in "Ceremony."

    Science.gov (United States)

    Hailey, David E., Jr.

    1990-01-01

    Examines apparent aberrations in the visual structure of the story-poems in Leslie Silko's "Ceremony." Suggests that the poems' texts act as skeletons for a series of illustrations that reflect the texts' content and provide the final ingredient necessary for "Ceremony" to become a ceremony--the invisible spirit helpers. (SV)

  10. Supersymmetry breaking

    Indian Academy of Sciences (India)

    Emilian Dudas

    2009-01-01

    We review the various mechanisms of supersymmetry breaking and its trans-mission to the observable sector. We argue that hybrid models where gauge dominates over gravity mediation, but gravity provides the main contributions to the Higgs sector masses and the neutralino mass, are able to combine the advantages and reduce the disadvantages of the two transmission mechanisms.

  11. The Break

    DEFF Research Database (Denmark)

    Strand, Anete Mikkala Camille

    2016-01-01

    The chapter elaborates on how to deal with one of the major challenges facing organizations worldwide; Stress. The Break enacts a quantum approach to meet the challenges by proposing a combination of three different quantum storytelling technologies; protreptic mentoring, walking and material sto...

  12. Breaking Routines

    DEFF Research Database (Denmark)

    Kesting, Peter; Jørgensen, Frances

    2010-01-01

    On some level, innovation begins when the current way of doing things is questioned and alternatives are sought. In cognitive terms, this can be conceptualized as the point at which an agent breaks with existing routine and returns to planning and decision-making. Thus far, however, very little...

  13. Actor Network Procedures as Psi-calculi for Security Ceremonies

    Directory of Open Access Journals (Sweden)

    Cristian Prisacariu

    2014-04-01

    Full Text Available The actor network procedures of Pavlovic and Meadows are a recent graphical formalism developed for describing security ceremonies and for reasoning about their security properties. The present work studies the relations of the actor network procedures (ANP to the recent psi-calculi framework. Psi-calculi is a parametric formalism where calculi like spi- or applied-pi are found as instances. Psi-calculi are operational and largely non-graphical, but have strong foundation based on the theory of nominal sets and process algebras. One purpose of the present work is to give a semantics to ANP through psi-calculi. Another aim was to give a graphical language for a psi-calculus instance for security ceremonies. At the same time, this work provides more insight into the details of the ANPs formalization and the graphical representation.

  14. The blessingway ceremony: ritual, nostalgic imagination and feminist spirituality.

    Science.gov (United States)

    Burns, Emily

    2015-04-01

    There is an increasing interest in the role of spirituality on the experience of health, wellness and illness, as well as the role of spiritual practice in health care provision. For pregnancy and childbirth, this focus has tended to concentrate on hospital birth settings and care, and religious forms of spirituality. The blessingway ceremony can be described as an alternative baby shower, popular with home-birthing women. Its focus is woman-centred and draws on the power of ritual to evoke a spiritual experience for the pregnant host and her guests. This spirituality is experienced as a strong connection between women, their relationship with 'nature', and forged via the nostalgic imagination of women through time and space. This article will draw on data obtained in 2010 during doctoral fieldwork with 52 home-birthing women across eastern Australia and will examine the blessingway ceremony and its significance as a site of potential spiritual empowerment for pregnant and birthing women.

  15. The development of ceremonies related to the Tomb of Christ

    Directory of Open Access Journals (Sweden)

    Franciszek Małaszyński

    1999-12-01

    Full Text Available The custom of constructing the Tomb of Christ in the final days of the Holy Week has been present since the early centuries of Polish Christianity. Following the Good Friday liturgy, a cross (in later centuries also the Eucharist was placed inside the tomb and kept there until the night of the Resurrection. The article presents the development of ceremonies related to the Tomb of Christ in the Syrian, Maronite, Byzantine and Western Churches.

  16. Breaking Symmetries

    Directory of Open Access Journals (Sweden)

    Kirstin Peters

    2010-11-01

    Full Text Available A well-known result by Palamidessi tells us that πmix (the π-calculus with mixed choice is more expressive than πsep (its subset with only separate choice. The proof of this result argues with their different expressive power concerning leader election in symmetric networks. Later on, Gorla offered an arguably simpler proof that, instead of leader election in symmetric networks, employed the reducibility of incestual processes (mixed choices that include both enabled senders and receivers for the same channel when running two copies in parallel. In both proofs, the role of breaking (initial symmetries is more or less apparent. In this paper, we shed more light on this role by re-proving the above result - based on a proper formalization of what it means to break symmetries without referring to another layer of the distinguishing problem domain of leader election. Both Palamidessi and Gorla rephrased their results by stating that there is no uniform and reasonable encoding from πmix into πsep. We indicate how the respective proofs can be adapted and exhibit the consequences of varying notions of uniformity and reasonableness. In each case, the ability to break initial symmetries turns out to be essential.

  17. Ceremonial en performance de viento teatro: pamuri mahse

    Directory of Open Access Journals (Sweden)

    Fernando Duque Mesa

    2011-09-01

    Full Text Available Se aborda el Ceremonial en Performance de Viento Teatro: Pamuri Mahse, mito fundacional de los Desana del Vaupés (Colombia, investigación dada desde el Teatro Ceremonial de la Máscara Mítica, mundo de lenguajes inscritos en los imaginarios a través de claves y simbolizaciones de la tierra, el espíritu y el cosmos vueltos a leer e interpretar en el tiempo y en el espacio, a partir de los discursos mágicos y asombrosos de las máscaras, la plástica de las tierras, los movimientos en danza, teatro, música, escenografía y cantos. La performer recuerda el acto fundacional mítico de unas culturas milenarias, quienes profesan las más antiguas y a la vez las más modernas artes, articulando en el performance, artes que no les son extrañas, en el mundo de la creatividad y de la imaginación. Les puede sonar muy extraño el término performance, porque para ellos todo esto es sencillamente un Ceremonial.

  18. Breaking Symmetries

    CERN Document Server

    Peters, Kirstin

    2010-01-01

    A well-known result by Palamidessi tells us that {\\pi}mix (the {\\pi}-calculus with mixed choice) is more expressive than {\\pi}sep (its subset with only separate choice). The proof of this result argues with their different expressive power concerning leader election in symmetric networks. Later on, Gorla of- fered an arguably simpler proof that, instead of leader election in symmetric networks, employed the reducibility of "incestual" processes (mixed choices that include both enabled senders and receivers for the same channel) when running two copies in parallel. In both proofs, the role of breaking (ini- tial) symmetries is more or less apparent. In this paper, we shed more light on this role by re-proving the above result-based on a proper formalization of what it means to break symmetries-without referring to another layer of the distinguishing problem domain of leader election. Both Palamidessi and Gorla rephrased their results by stating that there is no uniform and reason- able encoding from {\\pi}mix i...

  19. Breaking Symmetries

    CERN Document Server

    Peters, Kirstin; 10.4204/EPTCS.41.10

    2010-01-01

    A well-known result by Palamidessi tells us that \\pimix (the \\pi-calculus with mixed choice) is more expressive than \\pisep (its subset with only separate choice). The proof of this result argues with their different expressive power concerning leader election in symmetric networks. Later on, Gorla offered an arguably simpler proof that, instead of leader election in symmetric networks, employed the reducibility of incestual processes (mixed choices that include both enabled senders and receivers for the same channel) when running two copies in parallel. In both proofs, the role of breaking (initial) symmetries is more or less apparent. In this paper, we shed more light on this role by re-proving the above result - based on a proper formalization of what it means to break symmetries without referring to another layer of the distinguishing problem domain of leader election. Both Palamidessi and Gorla rephrased their results by stating that there is no uniform and reasonable encoding from \\pimix into \\pisep. We...

  20. The Break

    DEFF Research Database (Denmark)

    Strand, Anete Mikkala Camille; Larsen, Jens

    2015-01-01

    terrain break elaborates the terrain of Organizations anno 2015 as a terrain of complexity, streamlining, language-orientation and dis-functionality. The latter in regard to a WHO acknowledged concern for health issues related to work-related stress (Prætorius, 2012) and an ongoing urge for learning...... the challenges of the million-dollar question is stemming from the ‘bets on the future’ – or what David Boje coins as ‘antenarratives’, (Boje, 2008) that emerged through various reconfiguring story actions, on two different occasions. The paper thus elaborates on two cases of restorying events; One taking place...... in the Pyrenees of Europe in October 2015. One taking place in the hallways of the City Hall of a Municipality in Denmark in May 2015. In both cases the ‘bets on the future’ actions were given in a materialized form and drawing on a subtle form of negotiation of core leadership values; which values should matter...

  1. 20 CFR 219.31 - Evidence of a valid ceremonial marriage.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 1 2010-04-01 2010-04-01 false Evidence of a valid ceremonial marriage. 219... marriage. (a) Preferred evidence. Preferred evidence of a ceremonial marriage is— (1) A copy of the public record of the marriage, certified by the custodian of the record or by a Board employee; (2) A copy of...

  2. Crying for a Vision: The Native American Sweat Lodge Ceremony as Therapeutic Intervention

    Science.gov (United States)

    Garrett, Michael Tlanusta; Torres-Rivera, Edil; Brubaker, Michael; Portman, Tarrell Awe Agahe; Brotherton, Dale; West-Olatunji, Cirecie; Conwill, William; Grayshield, Lisa

    2011-01-01

    The Native American sweat lodge ceremony or sweat therapy is being used increasingly in various medical, mental health, correctional, and substance abuse treatment centers serving both Native and non-Native clients. This article explores the sweat lodge ceremony's background, elements of Native American spirituality, origin story, cultural…

  3. "Next Time, Just Remember the Story": Unlearning Empire in Silko's "Ceremony"

    Science.gov (United States)

    Akins, Adrienne

    2012-01-01

    In this article, the author discusses the unlearning empire in Leslie Marmon Silko's novel titled "Ceremony." "Ceremony' has received a wealth of critical attention. A number of scholars have identified the novel's treatment of education as a colonizing force used by the white American power structure to coerce assimilation of American Indians.…

  4. Bloody Mud, Rifle Butts, and Barbed Wire: Transforming the Bataan Death March in Silko's "Ceremony"

    Science.gov (United States)

    Beidler, Peter G.

    2004-01-01

    Efforts made by Leslie Marmon Silko's who took factual raw materials and, through the alchemy of her creative artistry, transformed her novel, "Ceremony" into something new and different is presented. Silko has made certain changes in the Bataan Death March in "Ceremony", and portrayed the Japanese with considerable sympathy.

  5. Quantifying School Officials' Exposure to Bacterial Pathogens at Graduation Ceremonies Using Repeated Observational Measures

    Science.gov (United States)

    Bishai, David; Liu, Liang; Shiau, Stephanie; Wang, Harrison; Tsai, Cindy; Liao, Margaret; Prakash, Shivaani; Howard, Tracy

    2011-01-01

    The purpose of this study was to estimate the risk of acquiring pathogenic bacteria as a result of shaking hands at graduation ceremonies. School officials participating in graduation ceremonies at elementary, secondary, and postsecondary schools were recruited. Specimens were collected before and immediately following graduation. Cultures…

  6. Crying for a Vision: The Native American Sweat Lodge Ceremony as Therapeutic Intervention

    Science.gov (United States)

    Garrett, Michael Tlanusta; Torres-Rivera, Edil; Brubaker, Michael; Portman, Tarrell Awe Agahe; Brotherton, Dale; West-Olatunji, Cirecie; Conwill, William; Grayshield, Lisa

    2011-01-01

    The Native American sweat lodge ceremony or sweat therapy is being used increasingly in various medical, mental health, correctional, and substance abuse treatment centers serving both Native and non-Native clients. This article explores the sweat lodge ceremony's background, elements of Native American spirituality, origin story, cultural…

  7. Ceremony for the inaugural issuance of the Journal of Geriatric Cardiology

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    @@ The Journal of Geriatric Cardiology ( JGC )started publication in September 2004. To announce the publication of its first issue, a ceremony was held at China Grand Hotel in Beijing on October 18th, 2004during the 15th Great Wall International Congress of Cardiology. Many guests were present at the ceremony.

  8. Breaking the ground for HIE-ISOLDE

    CERN Multimedia

    CERN Bulletin

    2011-01-01

    Have you noticed that Building 135 has disappeared from the Meyrin site? The old hangar used by the transport service – now located on the Prévessin site – has been removed to make room for the civil engineering work for the High Intensity and Energy ISOLDE (HIE-ISOLDE) installations. The work began at the end of August and it will not be long before new buildings start to appear in the ISOLDE premises.   Beamlines in the ISOLDE Hall. HIE-ISOLDE is a major upgrade, which will make the 44-year-old ISOLDE an internationally unique facility capable of accelerating heavy radioactive elements like no other. This important feature will allow the large ISOLDE scientific community to set up new experiments and explore the nuclear structure over the entire nuclear chart. A new superconducting linear accelerator, new beam lines and improved targets will replace the current installations. The cost of the upgrade is estimated at around 36 million Swiss francs. It will be ...

  9. Biosmart materials: breaking new ground in dentistry.

    Science.gov (United States)

    Badami, Vijetha; Ahuja, Bharat

    2014-01-01

    By definition and general agreement, smart materials are materials that have properties which may be altered in a controlled fashion by stimuli, such as stress, temperature, moisture, pH, and electric or magnetic fields. There are numerous types of smart materials, some of which are already common. Examples include piezoelectric materials, which produce a voltage when stress is applied or vice versa, shape memory alloys or shape memory polymers which are thermoresponsive, and pH sensitive polymers which swell or shrink as a response to change in pH. Thus, smart materials respond to stimuli by altering one or more of their properties. Smart behaviour occurs when a material can sense some stimulus from its environment and react to it in a useful, reliable, reproducible, and usually reversible manner. These properties have a beneficial application in various fields including dentistry. Shape memory alloys, zirconia, and smartseal are examples of materials exhibiting a smart behavior in dentistry. There is a strong trend in material science to develop and apply these intelligent materials. These materials would potentially allow new and groundbreaking dental therapies with a significantly enhanced clinical outcome of treatments.

  10. Environmental Aesthetics. Crossing Divides and Breaking Ground

    NARCIS (Netherlands)

    Drenthen, M.; Keulartz, J.

    2014-01-01

    Environmental aesthetics crosses several commonly recognized divides: between analytic and continental philosophy, Eastern and Western traditions, universalizing and historicizing approaches, and theoretical and practical concerns. This volume sets out to show how these,perspectives can be brought i

  11. Ann Arbor Session I: Breaking Ground.

    Science.gov (United States)

    Music Educators Journal, 1979

    1979-01-01

    Summarizes the first session of the National Symposium on the Applications of Psychology to the Teaching and Learning of Music held at Ann Arbor from October 30 to November 2, 1978. Sessions concerned auditory perception, motor learning, child development, memory and information processing, and affect and motivation. (SJL)

  12. Break New Ground on Storage of Carbon

    Institute of Scientific and Technical Information of China (English)

    Audrey GUO

    2009-01-01

    @@ Under the 2005 EU-China NZEC agreement,the EU and China agreed to collaborate on CCS technology with the objective of demonstrating advanced,near zero emissions coal technology through CCS in China and the EU by 2020.

  13. Biosmart Materials: Breaking New Ground in Dentistry

    Directory of Open Access Journals (Sweden)

    Vijetha Badami

    2014-01-01

    Full Text Available By definition and general agreement, smart materials are materials that have properties which may be altered in a controlled fashion by stimuli, such as stress, temperature, moisture, pH, and electric or magnetic fields. There are numerous types of smart materials, some of which are already common. Examples include piezoelectric materials, which produce a voltage when stress is applied or vice versa, shape memory alloys or shape memory polymers which are thermoresponsive, and pH sensitive polymers which swell or shrink as a response to change in pH. Thus, smart materials respond to stimuli by altering one or more of their properties. Smart behaviour occurs when a material can sense some stimulus from its environment and react to it in a useful, reliable, reproducible, and usually reversible manner. These properties have a beneficial application in various fields including dentistry. Shape memory alloys, zirconia, and smartseal are examples of materials exhibiting a smart behavior in dentistry. There is a strong trend in material science to develop and apply these intelligent materials. These materials would potentially allow new and groundbreaking dental therapies with a significantly enhanced clinical outcome of treatments.

  14. Development of sedentary communities in the Maya lowlands: coexisting mobile groups and public ceremonies at Ceibal, Guatemala.

    Science.gov (United States)

    Inomata, Takeshi; MacLellan, Jessica; Triadan, Daniela; Munson, Jessica; Burham, Melissa; Aoyama, Kazuo; Nasu, Hiroo; Pinzón, Flory; Yonenobu, Hitoshi

    2015-04-07

    Our archaeological investigations at Ceibal, a lowland Maya site located in the Pasión region, documented that a formal ceremonial complex was built around 950 B.C. at the onset of the Middle Preclassic period, when ceramics began to be used in the Maya lowlands. Our refined chronology allowed us to trace the subsequent social changes in a resolution that had not been possible before. Many residents of Ceibal appear to have remained relatively mobile during the following centuries, living in ephemeral post-in-ground structures and frequently changing their residential localities. In other parts of the Pasión region, there may have existed more mobile populations who maintained the traditional lifestyle of the preceramic period. Although the emerging elite of Ceibal began to live in a substantial residential complex by 700 B.C., advanced sedentism with durable residences rebuilt in the same locations and burials placed under house floors was not adopted in most residential areas until 500 B.C., and did not become common until 300 B.C. or the Late Preclassic period. During the Middle Preclassic period, substantial formal ceremonial complexes appear to have been built only at a small number of important communities in the Maya lowlands, and groups with different levels of sedentism probably gathered for their constructions and for public rituals held in them. These collaborative activities likely played a central role in socially integrating diverse groups with different lifestyles and, eventually, in developing fully established sedentary communities.

  15. HODSONG: A MONASTERY RITUAL FOR A LOCAL WISDOM CEREMONY FOR THE MONK RANKING

    Directory of Open Access Journals (Sweden)

    Theerapong Meethaisong

    2013-01-01

    Full Text Available The ranking order of monk in Isan, Thailand was influenced mostly from Buddhist believe and practices starting from Lanchang period and this religious believe become the common practices and the tool for local community in strengthening harmony and unity. One of the important religious ceremony calls Hodsong ceremony. The research area covered Maha Sarakham, Roi Et and Kalasin provinces which there are many Monk’s hierarchy ceremony. The research procedure used the qualitative research methodology. Data were collected from related literature and field studies using interviews and focus group discussion from a group of totally 66 informants. The findings were presented by means of a descriptive analysis. This research finds; Hodsong ceremony of Isan people was evidentially found since Dvaravati period, Sukhothai (Lanna, Lan Chang, Ayuthaya, Thonburi and Rattanakosin period. It was approved from different archeological sites such as Prathat Yakhu, Um Yakhu and the other kind of evident as has been recognized as a position or ranking such as Ratchakhru and Lakkham for instance. In addition, there were some equipment that was involved within this ceremony such as the water tube or Honghod were found at Wat Wichunrat and Wat Chiangthong, including different temple in Isan. The Laab or Supannabat (a golden plate used for in scripted manuscript was rarely found,and most of remains were reproduced. Hodsong ceremony is a religious tradition of Isan people that combined the ritual and believe together. Currently, Local Isan people still practice this ceremony in some communities with the 8 steps of preparation of instruments, Hodsong ornaments the itinerary order of the ceremony the ceremonial location the establishing ritual Baisri setting Sootkhwanbaisri or morale setting consoling and tied arms tradition. In addition, this ceremony involved with believers of direction and occasion from traditional beliefs. Despite, there were some problems such as

  16. The use of sugar cane on traditional ceremony in Tabanan, Bali

    Directory of Open Access Journals (Sweden)

    I WAYAN SUMANTERA

    2005-04-01

    Full Text Available Sugar cane or tebu (Saccharum officinarum L. is useful in Hinduism ceremonies in Bali, so that the people plant it in the home yard. Its population is not big but it spreads all over Bali. The farmers use it to be the merchandise at the markets, especially for the ritual ceremonies uses. The use of sugar cane in ritual ceremonies is very popular as symbolize of wedding ceremony. The sugar cane is put in front part of the cars when they go to the bride’s house for the permission. The sugar cane stem cut into two parts used as the parts of the offering, as the tegen-tegenan as the offering as the earth product, raka-raka fruit for canang/offering, pedangal for tooth ceremony etc. The research was conducted in Tabanan Bali to know the varieties of sugar cane and the function in ritual ceremony in Bali. The result showed that people used 8 kinds of sugar cane for the ceremonies such as: tebu ratu/raja, tebu tiying, tebu kuning, tebu selem/cemeng/hitam/ireng, tebu malem, tebu tawar, tebu salah, and tebu suwat. They had function as identities, offering, worship, protection, and food of white cows. This showed that Balinese people had a little knowledge of sugar cane as the offering and the plantation is not maximal. The belief of the sugar cane function in ritual ceremony in Bali supports its reservation. For that it needs to build reservation and introduce new varieties, the clearness of the sugar cane meaning as the facilities of the ceremony and the availability of young sugar cane.

  17. From Delirium to Coherence: Shamanism and Medicine Plants in Silko's "Ceremony"

    Science.gov (United States)

    Weso, Thomas F.

    2004-01-01

    A nondescript rock shelter in Texas provides the evidence for shamanism in Leslie Marmon Silko's novel, "Ceremony". There, archaeologists found identifiable images of antlered human figures and entheogenic plant substances, which are medicinal plants, associated with shamanistic practices.

  18. String breaking in two-dimensional QCD

    CERN Document Server

    Hornbostel, K J

    1999-01-01

    I present results of a numerical calculation of the effects of light quark-antiquark pairs on the linear heavy-quark potential in light-cone quantized two-dimensional QCD. I extract the potential from the Q-Qbar component of the ground-state wavefunction, and observe string breaking at the heavy-light meson pair threshold. I briefly comment on the states responsible for the breaking.

  19. Effects of a "silent mentor" initiation ceremony and dissection on medical students' humanity and learning.

    Science.gov (United States)

    Chiou, Ruei-Jen; Tsai, Po-Fang; Han, Der-Yan

    2017-09-16

    Many medical schools in Taiwan have adopted a dignified "silent mentor" initiation ceremony to strengthen student's medical humanity and increase their learning attitudes. This ceremony consists of introductions of the body donor's conduct and deeds, wreath-laying, and a tea party. However, few empirical studies have examined the influences of the ceremony and dissection on medical humanity. This study explored if the initiation ceremony and the course can help students care more about others, develop more positive attitudes toward death, improve learning effectiveness in the course, and decrease negative emotions the first time they see a cadaver. The Attitudes Towards Death and Love and Care subscales of the life attitude inventory, Learning Effectiveness of Gross Anatomy Laboratory Scale (LEGALS), and Emotional Reactions Towards Cadavers Scale were adopted to examine differences before (T1) and after (T2) medical students attended an initiation ceremony at a university in northern Taiwan. Whether these effects lasted to the end of the semester (T3) was also tested. After the ceremony, students' attitudes towards death increased, negative emotions towards cadavers decreased, but love and care and the LEGALS did not significantly change. Data from T3 showed a similar pattern, but high-level emotions (e.g., being respected, cherished, and grateful) and the LEGALS were significantly higher than those at T1. The initiation ceremony, which showed a body donor's deeds and attitudes toward life and death when they were alive, could help medical students gain more mature attitudes towards death and decreased negative emotions. Learning between T2 and T3 might have caused significant changes in high-level emotions and the LEGALS at T3. Arranging reflective writing with guided discussion by a teacher before and after the ceremony is highly recommended.

  20. News Release - Ceremonies held at Ashland's Kunshan and Changzhou facilities to celebrate plant expansions

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    @@ KUNSHAN & CHANGZHOU, (China) - Ashland Composite Polymers and Ashland Casting Solutions, business groups of Ashland Specialty Chemical, a division of Ashland Inc. (NYSE:ASH), held a two-day ribbon-cutting ceremony for their plant expansions in Kunshan and Changzhou in June 25-26, 2005.This marks the second public ceremonial event since the establishment of both plants in the late 1990s.

  1. Tianjin Textile Museum Opened Up & The Launching Ceremony of Tianjin Textile Building Staged

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    @@ The opening of Tianjin Textile Museum and the launching ceremony of Tianjin Textile Building were staged in Tianjin hi-tech textile industrial park on May 8. Chen Shujin, Vice President of China Textile Industry Association, Li Yuanchao, director of Tianjin Municipal Commission of Economy and Information Technology, the Deputy Secretary of Land and Resources,the Deputy Secretary of Technical Supervision Administration, and representatives of other group companies attended the ceremony.

  2. Highlights of the inauguration ceremony for the new permanent exhibition

    CERN Multimedia

    CERN Bulletin

    2010-01-01

    The new “Universe of Particles" permanent exhibition in the Globe was unveiled this week to its first visitors. On Monday, 28 June, in the presence of representatives of the local authorities, CERN Director-General Rolf Heuer cut the ribbon; on Tuesday, 29 and Wednesday 30 June the Globe's doors remained open for visits by the CERN personnel.   Cutting the ribbon at the inauguration of the Globe's new permanent exhibition At the conclusion of the inauguration ceremony, the Head of the Education Group, Rolf Landua, expressed his satisfaction: “It's wonderful. We are very happy that it has all turned out so well. Now we look forward to lots of visitors.” The exhibition represents a major addition to the tourist destinations in the region and an important tool for the public awareness of science, which could also be useful for schools. “The purpose of the exhibition is to inspire visitors, to arouse their curiosity about science and to motivate them t...

  3. Humanism or professionalism? The White Coat Ceremony and medical education.

    Science.gov (United States)

    Goldberg, Judah L

    2008-08-01

    In this article, the author challenges the widely held assumption that humanism and professionalism are necessarily complementary themes in medical education. He argues that humanism and professionalism are two very different value systems with different rationales, different goals, and different agendas. Whereas humanism is a universal, egalitarian ideology, professionalism represents the parochial, culturally determined practices of a particular professional group that may or may not conform to lay expectations. Distinguishing professionalism from humanism is crucial to understanding the divergent attitudes of providers and lay persons with regard to health care delivery and physician behavior. Moreover, it highlights the tension that medical students experience as they are tacitly asked to leave behind their lay, humanistic values and embrace a new professional identity, a transition that the common blurring of humanism and professionalism fails to recognize. In this context, the Arnold P. Gold Foundation's widely acclaimed White Coat Ceremony for entering medical students may actually be inhibiting, rather than encouraging, the genuine growth of humanism in medicine.

  4. Symmetry breaking. 2. ed.

    Energy Technology Data Exchange (ETDEWEB)

    Strocchi, F. [Scuola Normale Superiore, Classe di Scienze, Pisa (Italy)

    2008-07-01

    This new edition of Prof. Strocchi's well received primer on rigorous aspects of symmetry breaking presents a more detailed and thorough discussion of the mechanism of symmetry breaking in classical field theory in relation with the Noether theorem. Moreover, the link between symmetry breaking without massless Goldstone bosons in Coulomb systems and in gauge theories is made more explicit in terms of the delocalized Coulomb dynamics. Furthermore, the chapter on the Higgs mechanism has been significantly expanded with a non-perturbative treatment of the Higgs phenomenon, at the basis of the standard model of particle physics, in the local and in the Coulomb gauges. Last but not least, a subject index has been added and a number of misprints have been corrected. From the reviews of the first edition: The notion of spontaneous symmetry breaking has proven extremely valuable, the problem is that most derivations are perturbative and heuristic. Yet mathematically precise versions do exist, but are not widely known. It is precisely the aim of his book to correct this unbalance. - It is remarkable to see how much material can actually be presented in a rigorous way (incidentally, many of the results presented are due to Strocchi himself), yet this is largely ignored, the original heuristic derivations being, as a rule, more popular. - At each step he strongly emphasizes the physical meaning and motivation of the various notions introduced, a book that fills a conspicuous gap in the literature, and does it rather well. It could also be a good basis for a graduate course in mathematical physics. It can be recommended to physicists as well and, of course, for physics/mathematics libraries. J.-P. Antoine, Physicalia 28/2, 2006 Strocchi's main emphasis is on the fact that the loss of symmetric behaviour requires both the non-symmetric ground states and the infinite extension of the system. It is written in a pleasant style at a level suitable for graduate students in

  5. Symmetries, Symmetry Breaking, Gauge Symmetries

    CERN Document Server

    Strocchi, Franco

    2015-01-01

    The concepts of symmetry, symmetry breaking and gauge symmetries are discussed, their operational meaning being displayed by the observables {\\em and} the (physical) states. For infinitely extended systems the states fall into physically disjoint {\\em phases} characterized by their behavior at infinity or boundary conditions, encoded in the ground state, which provide the cause of symmetry breaking without contradicting Curie Principle. Global gauge symmetries, not seen by the observables, are nevertheless displayed by detectable properties of the states (superselected quantum numbers and parastatistics). Local gauge symmetries are not seen also by the physical states; they appear only in non-positive representations of field algebras. Their role at the Lagrangian level is merely to ensure the validity on the physical states of local Gauss laws, obeyed by the currents which generate the corresponding global gauge symmetries; they are responsible for most distinctive physical properties of gauge quantum field ...

  6. Cholera outbreak following a marriage ceremony in Medinya, Western Ghana.

    Science.gov (United States)

    Acquah, Helena; Malm, Keziah; Der, Joyce; Kye-Duodu, Gideon; Mensah, Ebenezer Kofi; Sackey, Samuel Oko; Nyarko, Kofi Mensah; Afari, Edwin

    2016-01-01

    Cholera is a diarrhoea disease caused by the bacterium e. On 13th June 2011, there was a reported outbreak of acute watery diarrhoea at Medinya among people who eat at a mass traditional wedding ceremony in the Western Region of Ghana. We investigated to characterize the outbreak, and implement control and preventive measures. We conducted a retrospective cohort study. We interviewed health workers, reviewed medical records, conducted environmental assessment and obtained water and stool samples for laboratory investigation. A suspected cholera-case defined as a person with acute watery diarrhoea, with or without vomiting, who ate food prepared at the mass traditional wedding in Medinya on 10th June 2011. We performed univariate and bivariate analysis. Of the 17 case-patients, 9 (52.9%) were males. The overall attack rate was 11.18% and case fatality rate was 5.9%. The most affected age group was 6-10 years (23.53%) with median age of 20 and ranged 6 to 38 years. Time of onset of symptoms was 2.00am and peaked at 10.am on 13th June. Compared to other food served, fufu with groundnut soup was more likely to have been contaminated (RR=7.3, 95%CI: 1.8-29.3). We isolated e serotype ogawa from stool samples. We observed open defaecation and poor personal hygiene. e serotype ogawa caused a high case-fatality outbreak in Medinya. Contaminated fufu and groundnut soup were the sources. Hand washing with soap was initiated and a make shift latrine constructed following our health education and recommendations.

  7. Therapeutic Potential of a Drum and Dance Ceremony Based on the African Ngoma Tradition

    Science.gov (United States)

    Vinesett, Ava L.; Price, Miurel

    2015-01-01

    Abstract Objective: Ngoma ceremonies are used throughout Central and South Africa to help people address “difficult issues,” including medical illness. They are examples of ceremonies that use strong rhythms and dance for this purpose in indigenous cultures throughout the world. This study sought to modify an ngoma ceremony to make it appropriate for biomedical use and to determine its acceptance and potential for benefit for people living in the United States. Methods: The Congolese Zebola ceremony, an African healing practice, was modified to be religion-neutral and to involve only moderate exercise. Seventeen participants were recruited for the current study. Most participants were living with a chronic illness (n=15), and a few had no medical diagnoses (n=2). Participants spent 10 minutes in a focused activity, such as meditation, yoga, or prayer. They then danced to the Congolese rhythm Zebola for an hour and a half, with a rest every 20 minutes. Afterward, they indicated whether the experience was positive, neutral, or negative and wrote a narrative describing their experience and what they saw as strengths and weaknesses of the ceremony. They then participated in a focus group discussion. Data from the narrative and focus group discussion were coded, tabulated, and analyzed for themes. Results: Sixteen of seventeen participants found the ceremony to be a positive experience. None found the form uncomfortably foreign or disturbing. Participants described diverse benefits, including increased exercise tolerance, stress reduction, feelings of group support, and beneficial spiritual experiences. Conclusions: Further study of the modified ngoma ceremony is warranted. Global health programs should consider the potential benefits of transferring technologies in both directions rather than only from technologically advanced countries to less technologically advanced ones. PMID:26171652

  8. A Stylistic Analysis of Break,Break,Break

    Institute of Scientific and Technical Information of China (English)

    李瑶

    2015-01-01

    Break, Break, Break is a poem by Alfred Lord Tennyson, the Poet Laureate during the Queen Victoria's reign. This exquisite little poem is wel known for the poet's grief-stricken feelings and heart-broken emotions over the premature death of his best friend, Arthur Henry Halam. Most of the previous studies on this poem focus on the emotional level to consider it as an elegy, expressing sorrow and lamentation for the death of a particular person. However, in order to have a deep understanding in general, this paper analyzes the poem based on the stylistic theory, concerning on the lexical level and the semantic level. It aims at helping the readers to cultivate a sense of appropriateness, to sharpen the understanding and appreciation of literary works and to achieve adaptation in translation.

  9. Ceremonies of gratitude following the dissection course: A report on procedures in departments of anatomy in German speaking countries.

    Science.gov (United States)

    Pabst, R; Schmiedl, A; Schrieber, S; Tschernig, T; Pabst, V C

    2017-03-01

    The departments of anatomy in Germany, Austria and the German-speaking part of Switzerland were sent comprehensive (18 items) questionnaires requesting details on memorial ceremonies held at the close of the dissection course in the medical curriculum, including objectives, organization, number of participants and the role of the medical students. The response rate was very high (95%). In more than 95% of instances a ceremony is held, initiated mainly after 1970. The titles of the ceremony range from commemoration ceremony (42%), service of mourning (19%) memorial service (19%) to ceremony of gratitude (7%). The number of participants exceeds 300 in 15% of these ceremonies. The invitation comes mostly from the student group organizing the ceremony (62%). The ceremony is offered mainly for the students of the course (23%), for student tutors (16%), relatives of the body donors (23%) and scientific staff (15%). The students actively participate with musical contributions (19%), gestures such as candles (17%) and flowers (12%), speeches (17%) and readings (12%). The relevance of the practical dissection course and body donation programs is also discussed. The results are compared to ceremonies in various countries with different religious backgrounds. This dissection course is unique among all courses in the medical curriculum as it obviously also has spiritual aspects. Copyright © 2016 Elsevier GmbH. All rights reserved.

  10. Un centro ceremonial formativo en el Alto Piura

    Directory of Open Access Journals (Sweden)

    1989-01-01

    Full Text Available Les recherches menées depuis 1986 sur le site de Cerro Ñañañique (Chulucanas, département de Piura ont permis l'étude et la caractérisation d'un complexe cérémoniel qui fut édifié et occupé entre le X ème et V ème siècles avant notre ère. On a pu reconnaître plusieurs phases de construction et d'agrandissement du site, organisé suivant un plan général en U. Des traditions céramiques d'origines et de styles différents -dont on peut suivre l'évolution tant du point de vue des formes et techniques décoratives qu'en ce qui concerne l'iconographie, particulièrement variée- sont présentes contemporainement sur le site. L'ensemble de ces données, nouvelles pour la zone d'étude, ainsi que l'analyse comparative des vestiges et restes matériels, prouvent l'existence de contacts et de relations avec l'ensemble des régions environnantes et tout particulièrement l'intégration du Haut Piura aux systèmes idéologiques et religieux plus méridionaux. L'implantation du site pourrait être liée à sa situation géographique, à la croisée d'une voie d'échange entre populations côtières, andines et amazoniennes et d'un chemin nord-sud facilitant les contacts entre la côte nord péruvienne et la côte et les Andes équatoriennes. Son occupation paraît témoigner d'une situation originale -caractérisée par la présence de représentants de plusieurs traditions culturelles- qui se maintiendra et singularisera également ce secteur du Haut Piura durant les époques postérieures. Las investigaciones realizadas desde 1986 en el sitio de Cerro Ñañañique (Chulucanas, departamento de Piura, han permitido el estudio y la caracterización de un complejo ceremonial, edificado y ocupado entre los siglos X y V antes de nuestra era. Se ha reconocido varias fases de construcción y ampliación del conjunto, según un plan general en U. Están presentes contemporáneamente en el sitio varias tradiciones cerámicas de orígenes y

  11. THE GALICIAN AUDIOVISUAL IN MESTRE MATEO AWARDS. PROTOCOL AT THE CEREMONY

    Directory of Open Access Journals (Sweden)

    Anna Amoros Pons

    2013-11-01

    Full Text Available The text summarizes the main results of a research that forms a part of a more global project about the study, in the field of cinema, of the specialized public relations  and ceremonial protocol as a communication strategy (persuasive indirect and / or covert in film events and, specifically, in the ceremony of awards’ delivery. In this article we focus on the geographical context of Galician audiovisual and on Mestre Mateo Awards’ show, in the first decade of the 21st century. Information of this event’s planning and the communication results obtained with its realization are contributed.

  12. The Meanings Of Goldfish In Wedding Ceremony Of Toba Batak Society

    OpenAIRE

    Christin Magdalena P.

    2014-01-01

    Paper entitled "The Meanings of Goldfish in Wedding Ceremony of Toba Batak Society" contains about understanding whyToba Batak people use goldfish in a wedding ceremony as a symbol of blessing given by hula-hula and the bride's parents to the couple. And found ed some roles of giving the goldfish and their functions. There are some rules and proverbs position used when delivering goldfish follow Batak Toba philosophy. The purpose of this paper work in order to provide insight to the people ...

  13. Coubertin and Olympic Ceremony%顾拜旦与奥林匹克仪式

    Institute of Scientific and Technical Information of China (English)

    任海

    2001-01-01

    通过对顾拜旦著作的研究,对在奥运会中举行的各种仪式的构思、形式、功能等进行了分析,旨在为把握奥林匹克仪式的本质内涵。%Through studying the literature of Coubertin, the author makes an analysis on design, form and function of various ceremony in Olympic games in order to hold the essence meaning of Olympic ceremony.

  14. 1-Tochtli, 2-Acatl Survivals of the New Fire Ceremony 1558/1559; 1610/1611

    Science.gov (United States)

    Lebeuf, Arnold

    2016-11-01

    In pre-Hispanic Mexico great ceremonies were celebrated every 52 years at the congruency of the two basic calendar cycles, of 365 and of 260 days. All ritual and domestic fires, were extinguished for five days. Then a new fire was lit on the chest of a victim. The evangelization of Mexico was accompanied by syncretism of the local faith, its feasts and places of cult. We find in the archives of the XVI and XVII centuries traces of the survivals of the New Fire Ceremony.

  15. Martin Luther King Jr.'s "I Have a Dream" in Context: Ceremonial Protest and African American Jeremiad.

    Science.gov (United States)

    Vander Lei, Elizabeth; Miller, Keith D.

    1999-01-01

    Discusses how "I Have a Dream" is the product of African-American rhetorical traditions of ceremonial protest and jeremiad speech-making, rituals that had crystallized long before King was born. Describes the peaceful essences of the March on Washington and how it was a "Ceremonial Protest." Considers the historical use of…

  16. Victory Ceremony Hosts/Hostess Costume Design Scheme for Beijing Olympics Sought

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ The Beijing Organizing Committee for the Games of the 29th Olympiad (BOCOG) announced on May 22 that it is organizing a bid across the nation for the design scheme of the victory ceremony hosts/hostess costumes for the Beijing 2008 Olympic Games from May 23 to June 25, 2007.

  17. Victory Ceremony Hosts/Hostess Costume Design Scheme for Beijing Olympics Sought

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    The Beijing Organizing Committee for the Games of the 29th Olympiad(BOCOG)announced on May 22 that it is organizing a bid across the nation for the design scheme of the victory ceremony hosts/hostess costumes for the Beijing 2008 Olympic Games from May 23 to June 25,2007.

  18. Launch Ceremony of Living History——40 Experiences from Personal Perspectives Held in Beijing

    Institute of Scientific and Technical Information of China (English)

    Wang; Wei

    2013-01-01

    <正>To commemorate the 40th anniversary of the establishment of diplomatic relations between China and Germany,a launch ceremony of the book Living History—40 Experiences from Personal Perspectives(Gelebte Geschichte—40 Erfahrungen aus Personlicher Sicht) was held in the Peace Palace of

  19. School as Ceremony and Ritual: How Photography Illuminates Performances of Ideological Transfer

    Science.gov (United States)

    Chappell, Drew; Chappell, Sharon; Margolis, Eric

    2011-01-01

    Images of the places and activities called "school" as a formal institution are rich data for the inquiring gaze. This article focuses specifically on historical photos of school rituals and ceremonies through which young people perform particular narratives of schooling through repetitive embodied practice and in turn construct values and beliefs…

  20. Ceremony Earth: Digitizing Silko's Novel for Students of the Twenty-First Century

    Science.gov (United States)

    Mott, Rick

    2011-01-01

    Many students the author has taught get frustrated when they read Leslie Silko's canonical Native American novel, "Ceremony". Not only do they struggle with Silko's disruptions of linear temporality and her collapsing of binary oppositions, but they also struggle with the novel's geographic and cultural location. To help students better…

  1. Virginia-Maryland Regional College of Veterinary Medicine's Class of 2011 admitted in ceremonies

    OpenAIRE

    Douglas, Jeffrey S.

    2007-01-01

    The Virginia-Maryland Regional College of Veterinary Medicine's (VMRCVM) Class of 2011 was formally admitted to the college recently following a "White Coat Ceremony" at Virginia Tech in which the 91 new students were issued white laboratory coats and administered the "Veterinary Student's Oath."

  2. Ceremony and Judicial Construction%仪式与司法建构

    Institute of Scientific and Technical Information of China (English)

    张欣

    2012-01-01

    文章从人类学的仪式理论与实践出发,引入仪式在日常生活和在司法领域的表现及作用,从而阐明仪式对立统一的存在价值。其次,从陪审制度这一现代司法仪式的阻断功能、辅助司法权威功能以及稳定司法功能进行全景式考察,阐述陪审制度借助仪式这一载体而体现的独特价值。%Starting from the ritual theory and practice of anthropology,the article introduces the performance and function of ceremony in daily life and judicial field,and clarifies the value of the unity of opposites of ceremony.Then,the article makes a thorough investigation of the blocking function,the function of assisting judicial authority,and the function of stabilizing the justice of jury system,a modern judicial ceremony,and states the unique value of jury system with ceremony as its carrier.

  3. 天下南岳祭茶纵观%An Overview on Tea Ceremony in Nanyue

    Institute of Scientific and Technical Information of China (English)

    谭子威; 胡秋桂

    2015-01-01

    Nanyue Tea ceremony can be tracked back to ancient times, and can be the reference to modern tea ceremony. The author collected vast amount of documentary materials and records from folks on this ancient ceremony and summarized the origin and development of this history, which might enhance the connotation of the old time and modern the culture of tea ceremony.%南岳祭茶溯及远古祭祀,是近现代祭茶礼节的传承依据.笔者从相关史料记载和通过民间走访搜集到大量有关祭茶、茶祭的资料,然后按照时序整理并理清了南岳祭茶的起源与发展历程,让读者深切领略南岳古老与当代祭茶、茶祭文化的内涵.

  4. The Nobel Prize Award Ceremony 1984 at the Stockholm Concert Hall, Sweden, 10 December

    CERN Multimedia

    TV1 Fakta, Stockholm

    1984-01-01

    The Nobel Prizes in Physics, Chemistry, Physiology or Medicine and Literature as well as the Economics Prize are awarded on 10 December at the Stockholm Concert Hall in Sweden. Organized by the Nobel Foundation, the Nobel Prize Award Ceremony is the highlight of the Nobel Week celebrating the Nobel Laureates and their work.

  5. The Nobel Prize Award Ceremony 1992 at the Stockholm Concert Hall, Sweden, 10 December

    CERN Multimedia

    Eurovision / TF1

    1992-01-01

    The Nobel Prizes in Physics, Chemistry, Physiology or Medicine and Literature as well as the Economics Prize are awarded on 10 December at the Stockholm Concert Hall in Sweden. Organized by the Nobel Foundation, the Nobel Prize Award Ceremony is the highlight of the Nobel Week – celebrating the Nobel Laureates and their work.

  6. NCI at Frederick Employees Recognized at the 2013 NCI Director’s Awards Ceremony | Poster

    Science.gov (United States)

    By Andrea Frydl, Contributing Writer, and Ashley DeVine, Staff Writer More than 60 NCI at Frederick government and contractor employees were recognized at the NCI Director’s Awards Ceremony on Nov. 14, held on the main NIH campus in Bethesda.

  7. Launching Ceremony of Chinese Edition of Our History Is Still Being Written Held

    Institute of Scientific and Technical Information of China (English)

    Our Staff Reporter

    2009-01-01

    <正>On March 13, the CPAFFC held a launching ceremony of the Chinese edition of Our History Is Still Being Written-tthe Story of Three Chinese-Cuban Generals in the Cuban Revolution at the Friendship Museum. Li Xiaolin, vice president of the

  8. Can spontaneous symmetry breaking occur in potential with one minimum?

    CERN Document Server

    Acus, A

    2000-01-01

    Spontaneous symmetry breaking occurs when the symmetry that a physical system possesses, is not preserved for the ground state of the system. Although the procedure of symmetry breaking is quite clear from the mathematical point of view, the physical interpretation of the phenomenon is worth to be better understood. In this note we present a simple and instructive example of the symmetry breaking in a mechanical system. It demonstrates that the spontaneous symmetry breaking can occur for the spatially extended solutions in a potential characterised by a single minimum.

  9. Consistency of Trend Break Point Estimator with Underspecified Break Number

    Directory of Open Access Journals (Sweden)

    Jingjing Yang

    2017-01-01

    Full Text Available This paper discusses the consistency of trend break point estimators when the number of breaks is underspecified. The consistency of break point estimators in a simple location model with level shifts has been well documented by researchers under various settings, including extensions such as allowing a time trend in the model. Despite the consistency of break point estimators of level shifts, there are few papers on the consistency of trend shift break point estimators in the presence of an underspecified break number. The simulation study and asymptotic analysis in this paper show that the trend shift break point estimator does not converge to the true break points when the break number is underspecified. In the case of two trend shifts, the inconsistency problem worsens if the magnitudes of the breaks are similar and the breaks are either both positive or both negative. The limiting distribution for the trend break point estimator is developed and closely approximates the finite sample performance.

  10. Projecting Dynastic Majesty: State Ceremony in the Reign of Robert Bruce

    Directory of Open Access Journals (Sweden)

    Lucinda Dean

    2015-07-01

    Full Text Available Following the murder of his rival John Comyn on 10 February at Greyfriars in Dumfries, and the crisis this act incited, Robert the Bruce’s inaugural ceremony took place at Scone in late March 1306. Much about this ceremony is speculative; however, subsequent retrospective legitimisation of the Bruce claims to the royal succession would suggest that all possible means by which Robert’s inauguration could emulate his Canmore predecessors and outline his right to rule on a level playing field with his contemporaries were amplified, particularly where they served the common purpose of legitimising Robert’s highly questioned hold on power. Fourteenth-century Scottish history is inextricably entwined in the Wars of Independence, civil strife and an accelerated struggle for autonomous rule and independence. The historiography of this period is unsurprisingly heavily dominated by such themes and, while this has been offset by works exploring subjects such as the tomb of Bruce and the piety of the Bruce dynasty, the ceremonial history of this era remains firmly in the shadows. This paper will address three key ceremonies through which a king would, traditionally, make powerful statements of royal authority: the inauguration or coronation of Bruce; the marriage of his infant son to the English princess Joan of the Tower in 1328, and his extravagant funeral ceremony in 1329. By focusing thus this paper hopes to shed new light on the ‘dark and drublie days’ of fourteenth-century Scotland and reveal that glory, dynastic majesty and pleasure were as central to the Scottish monarchy in this era as war and political turbulence.

  11. Superconductivity and symmetry breaking

    Energy Technology Data Exchange (ETDEWEB)

    Sarasua, L.G., E-mail: sarasua@fisica.edu.uy [Instituto de Fisica, Facultad de Ciencias, Universidad de la Republica, Montevideo (Uruguay)

    2012-02-15

    In the present work we consider the relation between superconductivity and spontaneous gauge symmetry breaking (SGBS). We show that ODLRO does not require in principle SBGS, even in the presence of particle number fluctuations, by examining exact solutions of a fermionic pairing model. The criteria become equivalent if a symmetry breaking field is allowed, which can be attributed to the interaction with the environment. However, superconducting states without SBGS are not forbidden.

  12. Blasting Vibration Generated by Breaking-Blasting Large Barriers with EBBLB

    OpenAIRE

    Wang Zhen-xiong; Gu Wen-bin; Liang Ting; Liu Jian-qing; Xu Jing-lin; Liu Xin

    2016-01-01

    Equipment for breaking and blasting large barriers (EBBLB) is new break-blast equipment, which inevitably induces ground vibration and may cause substantial damage to rock mass and nearby structures as well as human beings. The ground vibration induced by break-blast is one of the inevitable outcomes. By monitoring vibration at measuring points at different distances from blasting center, time history curve of vibrating velocity can be obtained; it can be drawn that blasting seismic waves are...

  13. Mass balance source apportionment modeling of indoor air pollution exposures during the Ethiopian coffee ceremony.

    Science.gov (United States)

    Keil, Chris; Coleman, Quincy; Brown, Alex; Kassa, Hailu

    2014-01-01

    Mass balance modeling was used to apportion previously measured carbon monoxide and respirable particle exposures of women preparing coffee during Ethiopian coffee ceremonies. The coffee ceremony generates smoke indoors from the use of charcoal and incense. This creates inhalation exposures, particularly for the women preparing the coffee. Understanding the health risks associated with this practice will be improved with knowledge of the relative contribution to combustion byproduct exposures from the different sources. Source fingerprints were developed in the laboratory for carbon monoxide and respirable particle emissions from charcoal and incense. A mass balance model determined that the majority of the carbon monoxide exposures were from charcoal use and that the respirable particle exposures were approximately half from incense and half from charcoal. Efforts to decrease health risks from these exposures must be directed by Ethiopian cultural stakeholders who understand the exposure conditions, the health risks, and the societal context.

  14. Inhalation exposures to particulate matter and carbon monoxide during Ethiopian coffee ceremonies in Addis Ababa: a pilot study.

    Science.gov (United States)

    Keil, Chris; Kassa, Hailu; Brown, Alexander; Kumie, Abera; Tefera, Worku

    2010-01-01

    The unique Ethiopian cultural tradition of the coffee ceremony increases inhalation exposures to combustion byproducts. This pilot study evaluated exposures to particulate matter and carbon monoxide in ten Addis Ababa homes during coffee ceremonies. For coffee preparers the geometric mean (57 μg/m³) and median (72 μg/m³) contributions to an increase in a 24-hour time-weighted average exposure were above World Health Organization (WHO) guidelines. At 40% of the study sites the contribution to the 24-hour average exposure was greater than twice the WHO guideline. Similar exposure increases existed for ceremony participants. Particulate matter concentrations may be related to the use of incense during the ceremony. In nearly all homes the WHO guideline for a 60-minute exposure to carbon monoxide was exceeded. Finding control measures to reduce these exposures will be challenging due to the deeply engrained nature of this cultural practice and the lack of availability of alternative fuels.

  15. Old and new rites of passage in contemporary Western societies: A focus on marriage and divorce ceremonies

    National Research Council Canada - National Science Library

    Laura Arosio

    2016-01-01

    .... With the demise of the circumstances that prevented divorce from being considered a transition event in the lives of individuals, the need has arisen to create ceremonial rites for the end of marriage...

  16. World War II soldier salutes the US Flag during a Veteran's Day ceremony to dedicate a memorial

    Science.gov (United States)

    2005-01-01

    World War II soldier salutes the US Flag during a Veteran's Day ceremony to dedicate a memorial to 'Smoky, Yorkie Doodle Dandy and Dogs of All Wars' in the Rocky River Reservation, Lakewood, Ohio. November 11, 2005

  17. El consumo de camelidos en un sitio ceremonial de la alta cordillera andina (Departamento Tinogasta, Catamarca, Argentina)

    National Research Council Canada - National Science Library

    Ratto, Norma; De Nigris, Mariana

    2012-01-01

    ... (5.000 msm, Departamento Tinogasta, Catamarca) para el periodo Formativo (ca. 530-720 d.C.). El sitio fue considerado como ceremonial con ocupaciones temporales u ocasionales que se enmarcarian dentro del culto a los volcanes...

  18. Keqiao Trade Fair Stands Out on Three Features——2009 CHINA KEQIAO INTERNATIONAL TEXTILE EXPO ceremoniously opens

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    On the morning of October 25th,2009,China Keqiao International Textile Expo (autumn) opened ceremoniously in China Textile City International Convention & Exhibition Center. "Large-Scale,internationalization and

  19. Electroweak symmetry breaking

    Energy Technology Data Exchange (ETDEWEB)

    Chanowitz, M.S.

    1990-09-01

    The Higgs mechanism is reviewed in its most general form, requiring the existence of a new symmetry-breaking force and associated particles, which need not however be Higgs bosons. The first lecture reviews the essential elements of the Higgs mechanism, which suffice to establish low energy theorems for the scattering of longitudinally polarized W and Z gauge bosons. An upper bound on the scale of the symmetry-breaking physics then follows from the low energy theorems and partial wave unitarity. The second lecture reviews particular models, with and without Higgs bosons, paying special attention to how the general features discussed in lecture 1 are realized in each model. The third lecture focuses on the experimental signals of strong WW scattering that can be observed at the SSC above 1 TeV in the WW subenergy, which will allow direct measurement of the strength of the symmetry-breaking force. 52 refs., 10 figs.

  20. Rituals, ceremonies and customs related to sacred trees with a special reference to the Middle East.

    Science.gov (United States)

    Dafni, Amots

    2007-07-09

    Tree worship is very common worldwide. This field study surveys the ceremonies and customs related to sacred trees in present-day Israel; it includes the results of interviews with 98 informants in thirty-one Arab, Bedouin, and Druze villages in the Galilee. The main results are: 1. Sacred trees were treated as another kind of sacred entity with all their metaphysical as well as physical manifestations. 2. There is not even one ceremony or custom that is peculiar only to a sacred tree and is not performed in other sacred places (such as a saint's grave or a mosque). 3. Few customs, such as: quarrel settling (= Sulkha), leaving objects to absorb the divine blessing and leaving objects for charity) seem to be characteristic of this region, only. 4. In modern times, sacred trees were never recorded, in Israel, as centres for official religious ceremonies including sacrifices, nor as places for the performing of rites of passage. 5. There is some variation among the different ethnic groups: Kissing trees and worshipping them is more common among the Druze although carrying out burials under the tree, leaving water and rain-making ceremonies under them have not been recorded in this group. Passing judgments under the tree is more typical of the Bedouin in which the sacred trees were commonly used as a public social centre. Most of the customs surveyed here are known from other parts of the world. The differences between Muslims and Druze are related to the latter's belief in the transmigration of souls.

  1. Rituals, ceremonies and customs related to sacred trees with a special reference to the Middle East

    Directory of Open Access Journals (Sweden)

    Dafni Amots

    2007-07-01

    Full Text Available Abstract Tree worship is very common worldwide. This field study surveys the ceremonies and customs related to sacred trees in present-day Israel; it includes the results of interviews with 98 informants in thirty-one Arab, Bedouin, and Druze villages in the Galilee. The main results are: 1. Sacred trees were treated as another kind of sacred entity with all their metaphysical as well as physical manifestations. 2. There is not even one ceremony or custom that is peculiar only to a sacred tree and is not performed in other sacred places (such as a saint's grave or a mosque. 3. Few customs, such as: quarrel settling (= Sulkha, leaving objects to absorb the divine blessing and leaving objects for charity seem to be characteristic of this region, only. 4. In modern times, sacred trees were never recorded, in Israel, as centres for official religious ceremonies including sacrifices, nor as places for the performing of rites of passage. 5. There is some variation among the different ethnic groups: Kissing trees and worshipping them is more common among the Druze although carrying out burials under the tree, leaving water and rain-making ceremonies under them have not been recorded in this group. Passing judgments under the tree is more typical of the Bedouin in which the sacred trees were commonly used as a public social centre. Most of the customs surveyed here are known from other parts of the world. The differences between Muslims and Druze are related to the latter's belief in the transmigration of souls.

  2. Traditional Marriage Ceremonies among the Ibibio People of Nigeria: A Study of Theatrics

    Directory of Open Access Journals (Sweden)

    Bassey Ubong

    2010-12-01

    Full Text Available ‘Traditional’ marriage among Ibibio people of Southern Nigeria is as much entertainment as it is serious drama that prepares a couple and their families for a life-long relationship. Although the script may be short, the entire event, from the pre-public ceremony to the post-public, in-house ceremonies is a deft admixture of rhetoric, song, dance, spectacle, character, and thought. The difference is that the event is not an imitation, but a mixture of human action and reaction in real time. The three unities may not apply as action is usually originated long before that special day but each traditional marriage (public ceremony that precedes, and is seen as being more important than a ‘white wedding,’ can be seen as a complete event in and of itself, taking place at the same venue, within a time frame and milieu, and concluded in one day. The performance lasts a lifetime and binds not just two people, but two families, sometimes two communities and two cultures. Christianity and economics have forced changes but the fundamentals remain – that the event is verily an admixture of drama and reality aimed at ensuring continuity of society.

  3. Traffic - Special arrangements for the official ceremony on 19th October

    CERN Multimedia

    Relations with the Host States Service

    2004-01-01

    The official ceremony marking CERN's fiftieth anniversary will take place on 19th October 2004 in the presence of Member State delegations and observers. Many VIPs are to attend the ceremony, which will be held in the Globe of Science and Innovation and in the adjacent marquee. The arrival and departure of the official delegations and guests will cause some disruption to traffic on and around the Meyrin site: The Route de Meyrin will probably be closed to traffic by the police between 2.00 p.m. and 3.00 p.m. and between 5.00 p.m. and 7.00 p.m. for the arrival and departure of VIPs. Access to the Saint-Genis-Pouilly roundabout will be difficult between 2.00 p.m. and 2.30 p.m., when the new entrance to the Meyrin site will be inaugurated. Use of the following car parks will be prohibited from 16th to 19th October inclusive (Open day and official ceremony; the appropriate road signs will be erected): the car parks located between the two lines on the drawing below (guests will register in a tent set up oppo...

  4. How does male ritual behavior vary across the lifespan? An examination of Fijian kava ceremonies.

    Science.gov (United States)

    Shaver, John H; Sosis, Richard

    2014-03-01

    Ritual behaviors of some form exist in every society known to anthropologists. Despite this universality, we have little understanding of how ritual behavior varies within populations or across the lifespan, nor the determinants of this variation. Here we test hypotheses derived from life history theory by using behavioral observations and oral interview data concerning participant variation in Fijian kava-drinking ceremonies. We predicted that substantial variation in the frequency and duration of participation would result from (1) trade-offs with reproduction and (2) the intrinsic status differences between ritual participants. We demonstrate that when controlling for household composition, men with young offspring participated less frequently and exhibited greater variance in their time spent at ceremonies than men without young children. However, men with a larger number of total dependents in their household participated more frequently than those with fewer. Moreover, we found that men's ascribed rank, level of education, and reliance on wage labor all significantly predict their frequency of attendance. We also found that the number of dependents a man has in his household is positively correlated with total food production, and the amount of kava he cultivates. In general, these results suggest that ritual participation is part of an important strategy employed by Fijian men for both achieving status and developing social alliances. Variation in participation in kava ceremonies by Fijian men therefore reflects the constraints of their current life history condition and their inherited rank.

  5. Ceremonial tobacco use in the Andes: implications for smoking prevention among indigenous youth.

    Science.gov (United States)

    Alderete, Ethel; Erickson, Pamela I; Kaplan, Celia P; Pérez-Stable, Eliseo J

    2010-04-01

    The purpose of this study was to identify Andean youth's beliefs regarding ceremonial tobacco use and to discuss potential applications of findings in tobacco control interventions. The study was conducted in the Province of Jujuy, Argentina among 202 boys and girls, 10 to 20 years of age, living in rural and urban areas. The world of beliefs and meanings became accessible by asking youth to focus on tangible experiences regarding the Pachamama ceremony, a ritual honoring Mother Earth. Concepts such as reciprocity, the unity of material and spiritual realms, and the complementary nature of opposite forces were linked to beliefs about ceremonial tobacco use. Three domains for understanding smoking behaviour beliefs and norms were identified including mechanisms of production, conceptual tenants and behavioural expressions. These findings suggest that tobacco control interventions based on solidarity, reciprocity, and non-rational ways of learning are more culturally appropriate for native populations in the Andes than the current individual behaviour change models and have the potential applications with other indigenous populations. The research methods also have the potential for generalized application in cross-cultural studies of health behaviours in understudied populations in middle and low-income countries.

  6. Assessing extreme droughts in the Iberian Peninsula during 1750–1850 from rogation ceremonies

    Directory of Open Access Journals (Sweden)

    F. Domínguez-Castro

    2011-11-01

    Full Text Available Among the different meteorological risks, droughts are the ones with the highest socio-economical impact in the Iberian Peninsula. Drought events have been largely studied in the instrumental period, but very little is known about the characteristics of droughts in the preinstrumental period. In this work, new series of rogation ceremonies identify severe droughts within the period 1750–1850. The overlapping of the rogation series with some instrumental series served to identify some climatic characteristics of rogation ceremonies: a during spring, rainfall deficits needed to celebrate rogation ceremonies are smaller than in any other season; b when the number of location celebrating rogations increases in a region the hydrological deficit on each location increases as well.

    On the other hand, it was found that the periods 1750–1754 and 1779–1783 are probably the driest periods of the 101 analyzed years. Both show an important number of rogations all over the Iberian Peninsula and during all the seasons.

    The most extended drought of this period occurred during the spring of 1817, affecting 15 of the 16 locations studied. This drought was influenced by the Tambora eruption (1815. The study of the climate footprint of this eruption and its comparison with similar situations in the series suggest that the spring drought of 1824 may be associated with the eruptions of the Galunggung and Usu volcanoes (1822. Further studies are required to confirm this fact and understand the atmospheric mechanisms involved.

  7. Assessing extreme droughts in Spain during 1750–1850 from rogation ceremonies

    Directory of Open Access Journals (Sweden)

    F. Domínguez-Castro

    2012-04-01

    Full Text Available Among the different meteorological hazards, droughts are those with the highest socio-economical impact on the Iberian Peninsula. Drought events have been largely studied in the instrumental period, but very little is known about the characteristics of droughts in the preinstrumental period. In this work, several series of rogation ceremonies are used to identify severe droughts within the period 1750–1850. The overlapping of the rogation series with some instrumental series served to identify some climatic characteristics of rogation ceremonies: (a during spring, rainfall deficits needed to celebrate rogation ceremonies are smaller than in any other season; (b the hydrological deficit in a particular region increases with the number of locations celebrating rogations simultaneously.

    On the other hand, it was found that between 1750–1754 and 1779–1783 are probably the driest periods of the 101 analyzed years. Both show an important number of rogations all over Iberia and during all the seasons.

    The most extended drought of this period occurred during the spring of 1817, affecting 15 of the 16 locations studied. This drought was influenced by the Tambora eruption (1815. The study of the climate footprint of this eruption and its comparison with similar situations in the series suggest that the spring drought of 1824 may be associated with the eruptions of the Galunggung and Usu volcanoes (1822. Further studies are required to confirm this fact and understand the atmospheric mechanisms involved.

  8. Enhancement of creative expression and entoptic phenomena as after-effects of repeated ayahuasca ceremonies.

    Science.gov (United States)

    Frecska, Ede; Móré, Csaba E; Vargha, András; Luna, Luis E

    2012-01-01

    Studying the effect of psychedelic substances on expression of creativity is a challenging problem. Our primary objective was to study the psychometric measures of creativity after a series of ayahuasca ceremonies at a time when the acute effects have subsided. The secondary objective was to investigate how entoptic phenomena emerge during expression of creativity. Forty individuals who were self-motivated participants of ayahuasca rituals in Brazil completed the visual components of the Torrance Tests of Creative Thinking before and the second day after the end of a two-week long ceremony series. Twenty-one comparison subjects who did not participate in recent psychedelic use also took the Torrance tests twice, two weeks apart. Repeated ingestion of ayahuasca in the ritual setting significantly increased the number of highly original solutions and phosphenic responses. However, participants in the ayahuasca ceremonies exhibited more phosphenic solutions already at the baseline, probably due to the fact that they had more psychedelic experiences within six months prior to the study than the comparison subjects did. This naturalistic study supports the notion that some measures of visual creativity may increase after ritual use of ayahuasca, when the acute psychoactive effects are receded. It also demonstrates an increased entoptic activity after repeated ayahuasca ingestion.

  9. Breaking News as Radicalisation

    DEFF Research Database (Denmark)

    Hartley, Jannie Møller

    journalists are using the categorisations to create hierarchies within the journalistic field in order to position themselves as specialists in what Tuchman has called developing news, aiming and striving for what today is know as breaking news and the “exclusive scoop,” as the trademark of online journalism...

  10. Routinizing Breaking News

    DEFF Research Database (Denmark)

    Hartley, Jannie Møller

    2011-01-01

    This chapter revisits seminal theoretical categorizations of news proposed three decades earlier by US sociologist Gaye Tuchman. By exploring the definition of ”breaking news” in the contemporary online newsrooms of three Danish news organisations, the author offers us a long overdue re...

  11. Model Breaking Points Conceptualized

    Science.gov (United States)

    Vig, Rozy; Murray, Eileen; Star, Jon R.

    2014-01-01

    Current curriculum initiatives (e.g., National Governors Association Center for Best Practices and Council of Chief State School Officers 2010) advocate that models be used in the mathematics classroom. However, despite their apparent promise, there comes a point when models break, a point in the mathematical problem space where the model cannot,…

  12. Model Breaking Points Conceptualized

    Science.gov (United States)

    Vig, Rozy; Murray, Eileen; Star, Jon R.

    2014-01-01

    Current curriculum initiatives (e.g., National Governors Association Center for Best Practices and Council of Chief State School Officers 2010) advocate that models be used in the mathematics classroom. However, despite their apparent promise, there comes a point when models break, a point in the mathematical problem space where the model cannot,…

  13. Breaking the Waves

    DEFF Research Database (Denmark)

    Christensen, Poul Rind; Kirketerp, Anne

    2006-01-01

    The paper shortly reveals the history of a small school - the KaosPilots - dedicated to educate young people to carriers as entrepreneurs. In this contribution we want to explore how the KaosPilots managed to break the waves of institutionalised concepts and practices of teaching entrepreneurship...

  14. Single sector supersymmetry breaking

    Energy Technology Data Exchange (ETDEWEB)

    Luty, Markus A.; Terning, John

    1999-03-18

    We review recent work on realistic models that break supersymmetry dynamically and give rise to composite quarks and leptons, all in a single sector. These models have a completely natural suppression of flavor-changing neutral currents, and the hierarchy of Yukawa couplings is explained by the dimensionality of composite states. The generic signatures are unification of scalar masses with different quantum numbers at the compositeness scale, and lighter gaugino, Higgsino, and third-generation sfermion masses.

  15. Predicting appointment breaking.

    Science.gov (United States)

    Bean, A G; Talaga, J

    1995-01-01

    The goal of physician referral services is to schedule appointments, but if too many patients fail to show up, the value of the service will be compromised. The authors found that appointment breaking can be predicted by the number of days to the scheduled appointment, the doctor's specialty, and the patient's age and gender. They also offer specific suggestions for modifying the marketing mix to reduce the incidence of no-shows.

  16. Fission: statistical nucleon pair breaking

    Energy Technology Data Exchange (ETDEWEB)

    Montoya, M. (Instituto Peruano de Energia Nuclear, Lima (Peru))

    1984-06-01

    In order to explain the odd-even effect observed in low energy fission fragment distributions it has been recently required a double mechanism of nucleon pair breaking: before scission (early pair breaking) and at scission (late pair breaking), respectively. In the present work we show that, using the same formulae but considering only the early pair breaking mechanism, one can reproduce fairly well all the available experimental data on the odd-even effects.

  17. Launching Ceremony of China-New Zealand Mayoral Forum Held in Auckland

    Institute of Scientific and Technical Information of China (English)

    Xu; Fenghua

    2015-01-01

    The Launching Ceremony of the China-New Zealand Mayoral Forumjointlyorgani zedby the CPAFF Cand Local Government New Zealand(LGNZ)was held in Auckland on November 21,2014.Chinese President Xi Jinping who was on a state visit to New Zealand and his host Prime Minister John Key attended and gave speeches.Wang Huning,Li Zhanshu,Yang Jiechi and other Party and State leaders of China were among the 100 people attending the event.In his speech,President Xi said the timely launching of the China-

  18. Ghost Dancing the Grand Canyon. Southern Paiute Rock Art, Ceremony, and Cultural Landscapes.

    Science.gov (United States)

    Stoffle; Loendorf; Austin; Halmo; Bulletts

    2000-02-01

    Combining rock art studies with ethnohistory, contemporary ethnographic analysis, and the interpretations of people who share the cultural traditions being studied, this paper documents a rock art site in Kanab Creek Canyon that appears to have been the location of a Ghost Dance ceremony performed by Southern Paiute and perhaps Hualapai people in the late 1800s. Using the site as a point of departure, it focuses on the way in which synergistic associations among place, artifact, resources, events, and historic and contemporary Indian people contribute to the construction of a contextual cultural landscape.

  19. Symmetry breaking and a dynamical property of a dipolar Bose–Einstein condensate in a double-well potential

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Yuan-Sheng, E-mail: joiningnow@126.com; Li, Zhen-Yu; Zhou, Zhu-Wen; Diao, Xin-Feng

    2014-01-03

    Highlights: •We investigate the symmetry breaking of a dipolar Bose–Einstein condensate. •The anisotropy of dipolar interaction affects the ground state structure. •Tuning the scattering length can realize the symmetry breaking phenomena. •Increasing the barrier height can realize the symmetry breaking phenomena.

  20. Breaking the Waves

    DEFF Research Database (Denmark)

    Christensen, Poul Rind; Kirketerp, Anne

    2006-01-01

    The paper shortly reveals the history of a small school - the KaosPilots - dedicated to educate young people to carriers as entrepreneurs. In this contribution we want to explore how the KaosPilots managed to break the waves of institutionalised concepts and practices of teaching entrepreneurship....... Following the so-called 'Dogma' concept developed by Danish filmmakers, this contribution aim to explore the key elements making up the recipes guiding the entrepreneurship training program exercised by the school. Key factors forming a community of learning practice are outlined as well as the critical...... pedagogical elements on which the education in entrepreneurship rests....

  1. Definitional ceremonies: narrative practices for psychologists to inform interdisciplinary teams' understanding of children's spirituality in pediatric settings.

    Science.gov (United States)

    Moore, Kelsey; Talwar, Victoria; Moxley-Haegert, Linda

    2015-03-01

    In pediatric settings, parents and children often seek spiritual and religious support from their healthcare provider, as they try to find meaning in their illness. Narrative practices, such as definitional ceremonies, can provide a unique framework for psychologists to explore children's spirituality and its role in the midst of illness. In addition, definitional ceremonies can be used as a means for psychologists to inform interdisciplinary teams' understanding of children's spirituality and its relevance in pediatric treatment settings. In this article, our objectives are to (a) provide a brief overview of the literature on children's spirituality, (b) review some of the literature on childhood cancer patients' spirituality, (c) highlight the importance of whole-person care for diverse pediatric patients, and (d) introduce definitional ceremonies as appropriate narrative practices that psychologists can use to both guide their therapy and inform interdisciplinary teams' understanding of children's spirituality.

  2. Old and new rites of passage in contemporary Western societies: A focus on marriage and divorce ceremonies

    Directory of Open Access Journals (Sweden)

    Laura Arosio

    2016-06-01

    Full Text Available This article deals with ceremonial behaviors related to changes of status in individuals’ life courses, that is to say, with rites of passage. Drawing on Arnold van Gennep’s classic book on Les rites de passage, we first discuss their meaning and explore their persistence over time. In contemporary societies some rites die out, others assert themselves. We suggest that this is the case of divorce rites. With the demise of the circumstances that prevented divorce from being considered a transition event in the lives of individuals, the need has arisen to create ceremonial rites for the end of marriage. In this light, we interpret the growing interest in phenomena such as divorce ceremonies and divorce parties.

  3. Discussion on the Nature of Wine Ceremony%论“酒道”之“酒性”

    Institute of Scientific and Technical Information of China (English)

    王金月; 骆凤文; 郭五林

    2012-01-01

    分别对我国历史悠久的"酒""、茶"中的"艺、道"进行深入阐释。指出"酒道"之内涵的"酒艺",恰与"茶艺"的静谧、雅致、阴柔形成对照,在表现主体上应以男士为主,在表现内容和手法上应以豪情、激扬、阳刚为主。%Both wine and tea has long history in China.The art and the ceremony on wine and tea were discussed in this paper.It was pointed out that wine ceremony nature was opposite to tea ceremony nature and it mainly presented inspiring,tough and masculine in character.(Tran.by YUE Yang)

  4. REMINDER: Special traffic arrangements for the LHC inauguration ceremony on 21 october

    CERN Multimedia

    DSU Unit

    2008-01-01

    Road, gate and tunnel closures THE FOLLOWING WILL BE CLOSED TO ALL TRAFFIC BETWEEN 11.00 A.M. AND 7.00 P.M.: The main road (RD 984) between the Saint Genis roundabout and the customs; The Route de l’Europe running between the crossroads by the Prévessin site (RD 35b) and the RD 984; The Route de Meyrin between the Route du Mandement and the St Genis customs; Gates A, B and D and the tunnel linking the Meyrin and Prévessin sites. Please use the following gates during the above-mentioned hours: Gate C (Satigny) for access to the Meyrin site from Switzerland; Gate E, which will be exceptionally open, for access to the Meyrin site from France. Point 18, the venue for the ceremony, will be accessible only by shuttle bus (departing from Point 1 via the Globe). Car parking Use of the car parks reserved for the ceremony guests is strictly forbidden between 3.00 p.m. on 20 October and 6.00 p.m. on 21 October. Any vehicles parked on the car parks in question will be remo...

  5. Special traffic arrangements for the LHC Inauguration Ceremony on 21 October

    CERN Multimedia

    DSU Unit

    2008-01-01

    Road, gate and tunnel closures The following will be closed to all traffic between 11.00 a.m. and 7.00 p.m.: The main road (RD 984) between the Saint Genis roundabout and the customs. The Route de l’Europe running between the crossroads by the Prévessin site (RD 35b) and the RD 984. The Route de Meyrin between the Route du Mandement and the St Genis customs. Gates A, B and D and the tunnel linking the Meyrin and Prévessin sites. Please use the following gates during the above-mentioned hours: Gate C (Satigny) for access to the Meyrin site from Switzerland, Gate E, which will be exceptionally open, for access to the Meyrin site from France. Point 18, the venue for the ceremony, will be accessible only by shuttle bus (departing from Point 1 via the Globe). Car parking Use of the car parks reserved for the ceremony guests is strictly forbidden between 3.00 p.m. on 20 October and 6.00 p.m. on 21 October. Any vehicles parked on the car parks in question will be removed at ...

  6. First CMS awards ceremony of 2003 to honour its top suppliers

    CERN Multimedia

    2003-01-01

    Each year CMS holds an awards ceremony to honour its top suppliers. This year 12 companies are receiving awards for their outstanding performances, eight the Gold Award and four the most prestigious award, the Crystal Award. The main ceremony will take place on 24 February during CMS week at CERN. However, one of the recipients of the Gold Award, the Snezhinsk All-Russian Institute of Scientific Research for Technical Physics (VNIITF) of the Russian Federal Nuclear Centre (RFNC) has already received its award. Felicitas Pauss, Vice-Chairman of the CMS Collaboration Board, hands a Gold Award for best CMS supplier to Professor Georgy Rykovanov, Director of Russia's RFNC-VNIITF Institute.The CMS Collaboration took the opportunity of the visit to CERN of the Director of the VNIITF and his deputy to make the award. which the Institute has received for its exceptional performance in the assembly of steel plates for the CMS's forward hadronic calorimeter. This calorimeter consists of two sets of 18 wedge-shape modul...

  7. Bootstrap Dynamical Symmetry Breaking

    Directory of Open Access Journals (Sweden)

    Wei-Shu Hou

    2013-01-01

    Full Text Available Despite the emergence of a 125 GeV Higgs-like particle at the LHC, we explore the possibility of dynamical electroweak symmetry breaking by strong Yukawa coupling of very heavy new chiral quarks Q . Taking the 125 GeV object to be a dilaton with suppressed couplings, we note that the Goldstone bosons G exist as longitudinal modes V L of the weak bosons and would couple to Q with Yukawa coupling λ Q . With m Q ≳ 700  GeV from LHC, the strong λ Q ≳ 4 could lead to deeply bound Q Q ¯ states. We postulate that the leading “collapsed state,” the color-singlet (heavy isotriplet, pseudoscalar Q Q ¯ meson π 1 , is G itself, and a gap equation without Higgs is constructed. Dynamical symmetry breaking is affected via strong λ Q , generating m Q while self-consistently justifying treating G as massless in the loop, hence, “bootstrap,” Solving such a gap equation, we find that m Q should be several TeV, or λ Q ≳ 4 π , and would become much heavier if there is a light Higgs boson. For such heavy chiral quarks, we find analogy with the π − N system, by which we conjecture the possible annihilation phenomena of Q Q ¯ → n V L with high multiplicity, the search of which might be aided by Yukawa-bound Q Q ¯ resonances.

  8. String Mediated Supersymmetry Breaking

    Energy Technology Data Exchange (ETDEWEB)

    Brodie, John H

    2001-07-25

    We consider the 3+1 visible sector to live on a Hanany-Witten D-brane construction in type IIA string theory. The messenger sector consists of stretched strings from the visible brane to a hidden D6-brane in the extra spatial dimensions. In the open string channel supersymmetry is broken by gauge mediation while in the closed string channel supersymmetry is broken by gravity mediation. Hence, we call this kind of mediation ''string mediation''. We propose an extension of the Dimopoulos-Georgi theorem to brane models: only detached probe branes can break supersymmetry without generating a tachyon. Fermion masses are generated at one loop if the branes break a sufficient amount of the ten dimensional Lorentz group while scalar potentials are generated if there is a force between the visible brane and the hidden brane. Scalars can be lifted at two loops through a combination of brane bending and brane forces. We find a large class of stable non-supersymmetric brane configurations of ten dimensional string theory.

  9. Spontaneous symmetry breaking in thermalization and anti-thermalization

    CERN Document Server

    Liao, Jie-Qiao; Wang, X G; Liu, X F; Sun, C P

    2009-01-01

    The phenomenon of spontaneous symmetry breaking is investigated in the dynamic thermalization of a degenerate quantum system. A three-level system interacting with a heat bath is carefully studied to this end. It is shown that the three-level system with degenerate ground states might have different behaviors depending on the details of the interaction with the heat bath when the temperature approaches zero. If we introduce an external field to break the degeneracy of the ground states and let it approach zero after letting the temperature approach zero, then two possibilities will arise: the steady state is a definite one of the degenerate states independent of the initial state, or the steady state is dependent on the initial state in a complicated way. The first possibility corresponds to a spontaneous symmetry breaking of the system and the second one implies that the heat bath could not totally erase the initial information in certain cases.

  10. Spontaneous Symmetry Breaking in Quantum Systems. A review for Scholarpedia

    CERN Document Server

    Strocchi, F

    2012-01-01

    The mechanism of spontaneous symmetry breaking in quantum systems is briefly reviewed, rectifying part of the standard wisdom on logical and mathematical grounds. The crucial role of the localization properties of the time evolution for the conclusion of the Goldstone theorem is emphasized.

  11. Competitive forms of symmetry breaking in linear antiferromagnetic systems

    NARCIS (Netherlands)

    Caspers, W.J.; Magnus, W.

    1985-01-01

    Two different forms of symmetry breaking are considered for linear antiferromagnetic systems (S = 1/2 ). Their relative stability is examined by considering small fluctuations in the harmonic oscillator approximation. Imaginary frequencies correspond with an unstable phase, and the ground state repr

  12. Design of High Power DC Break For ICRH Of EAST

    Institute of Scientific and Technical Information of China (English)

    Li Guochao; Zhao Yanping; Mao Yuzhou; Ding Jiayi; Xue Diye; Qin Chengming; T. Watari; R. Kumazawa

    2005-01-01

    1.5MW Ion Cyclotron Wave Heating system was developed, the transmitter and the antenna both have their ground loops, which will severely perturb the system's normal operation. To avoid perturbation, a DC break was designed. The S parameter and the VSWR (voltage standing wave ratio) of incident port were calculated; the thermal effect caused by conductor loss and dielectric loss was analyzed.

  13. Break the Pattern!

    DEFF Research Database (Denmark)

    Hasse, Cathrine; Trentemøller, Stine

    Break the Pattern! A critical enquiry into three scientific workplace cultures: Hercules, Caretakers and Worker Bees is the third publication of the international three year long project "Understanding Puzzles in the Gendered European Map" (UPGEM). By contrasting empirical findings from academic...... workplaces in the five UPGEM-countries (Denmark, Estonia, Finland, Italy and Poland) we identify three clusters of cultural patterns in physics as culture. We call these Hercules, Caretakers and Worker Bees. We also consider the influence of national cultural historical processes on the scientific culture...... (physics in culture) and discuss how physics as and in culture influence the perception of science, of work and family life, of the interplay between religion and science as well as how physics as culture can either hinder or promote the career of female scientists....

  14. Corpuscular Breaking of Supersymmetry

    CERN Document Server

    Dvali, Gia

    2014-01-01

    Are topological solitons elementary or composites? We answer this question by drawing up a corpuscular formalism in which solitons are coherent states of quantum constituents. This naturally leads to a functional integral representation, in which the classical saddle point is reached as the most probable distribution of corpuscles in the $\\hbar = 0$ limit and where quantum corpuscular corrections correspond to excursions away from such a distribution that occur only for finite $\\hbar$. Several striking features come up. Topological charge emerges as a collective flow of quantum numbers carried by individual corpuscles. Moreover, the corpuscular corrections are not reducible to any known form of quantum corrections, such as loop expansions in the coupling constant $\\hbar g^2$ or semiclassical $e^{-1/\\hbar g^2}$ effects. Corpuscular corrections are stronger and appear already at order $\\sqrt{\\hbar g^2}$. In SUSY theories quantum corpuscular corrections generically break supersymmetry. We show that a domain wall...

  15. Dynamical Supersymmetry Breaking

    CERN Document Server

    Shadmi, Y; Shadmi, Yael; Shirman, Yuri

    2000-01-01

    Supersymmetry is one of the most plausible and theoretically motivated frameworks for extending the Standard Model. However, any supersymmetry in Nature must be a broken symmetry. Dynamical supersymmetry breaking (DSB) is an attractive idea for incorporating supersymmetry into a successful description of Nature. The study of DSB has recently enjoyed dramatic progress, fueled by advances in our understanding of the dynamics of supersymmetric field theories. These advances have allowed for direct analysis of DSB in strongly coupled theories, and for the discovery of new DSB theories, some of which contradict early criteria for DSB. We review these criteria, emphasizing recently discovered exceptions. We also describe, through many examples, various techniques for directly establishing DSB by studying the infrared theory, including both older techniques in regions of weak coupling, and new techniques in regions of strong coupling. Finally, we present a list of representative DSB models, their main properties, an...

  16. Kinematic dynamo, supersymmetry breaking, and chaos

    Science.gov (United States)

    Ovchinnikov, Igor V.; Enßlin, Torsten A.

    2016-04-01

    The kinematic dynamo (KD) describes the growth of magnetic fields generated by the flow of a conducting medium in the limit of vanishing backaction of the fields onto the flow. The KD is therefore an important model system for understanding astrophysical magnetism. Here, the mathematical correspondence between the KD and a specific stochastic differential equation (SDE) viewed from the perspective of the supersymmetric theory of stochastics (STS) is discussed. The STS is a novel, approximation-free framework to investigate SDEs. The correspondence reported here permits insights from the STS to be applied to the theory of KD and vice versa. It was previously known that the fast KD in the idealistic limit of no magnetic diffusion requires chaotic flows. The KD-STS correspondence shows that this is also true for the diffusive KD. From the STS perspective, the KD possesses a topological supersymmetry, and the dynamo effect can be viewed as its spontaneous breakdown. This supersymmetry breaking can be regarded as the stochastic generalization of the concept of dynamical chaos. As this supersymmetry breaking happens in both the diffusive and the nondiffusive cases, the necessity of the underlying SDE being chaotic is given in either case. The observed exponentially growing and oscillating KD modes prove physically that dynamical spectra of the STS evolution operator that break the topological supersymmetry exist with both real and complex ground state eigenvalues. Finally, we comment on the nonexistence of dynamos for scalar quantities.

  17. Dynamical (Super)Symmetry Breaking

    CERN Document Server

    Murayama, H

    2001-01-01

    Dynamical Symmetry Breaking (DSB) is a concept theorists rely on very often in the discussions of strong dynamics, model building, and hierarchy problems. In this talk, I will discuss why this is such a permeating concept among theorists and how they are used in understanding physics. I also briefly review recent progress in using dynamical symmetry breaking to construct models of supersymmetry breaking and fermion masses.

  18. Anomalous breaking of anisotropic scaling symmetry in the quantum lifshitz model

    NARCIS (Netherlands)

    Baggio, M.; de Boer, J.; Holsheimer, K.

    2012-01-01

    In this note we investigate the anomalous breaking of anisotropic scaling symmetry (t, x) → (λ z t, λ x) in a non-relativistic field theory with dynamical exponent z = 2. On general grounds, one can show that there exist two possible "central charges" which characterize the breaking of scale invaria

  19. Electroweak breaking in supersymmetric models

    CERN Document Server

    Ibáñez, L E

    1992-01-01

    We discuss the mechanism for electroweak symmetry breaking in supersymmetric versions of the standard model. After briefly reviewing the possible sources of supersymmetry breaking, we show how the required pattern of symmetry breaking can automatically result from the structure of quantum corrections in the theory. We demonstrate that this radiative breaking mechanism works well for a heavy top quark and can be combined in unified versions of the theory with excellent predictions for the running couplings of the model. (To be published in ``Perspectives in Higgs Physics'', G. Kane editor.)

  20. Golden Jubilee Photos: Four giants break new ground

    CERN Multimedia

    2004-01-01

    The four LHC experiments are on an unprecedented scale. The detectors will record particle collisions far more powerful than those at any other particle accelerator. One of the detectors, ATLAS, will be the largest-volume particle detector ever, a cylinder 45 metres long and 25 metres high. And the collaborations are a step beyond LHC's predecessor, LEP, involving even more people from more countries. Together, these four experiments promise to open a door to new realms of physics. CMS and ATLAS are both general-purpose detectors, whose major quarry include the Higgs particle, which could give other particles their mass, and supersymmetric particles, which would bolster theories beyond the Standard Model. A major technical challenge for CMS has been acquiring 61 000 large, precision-grown crystals, denser than iron, for catching high-energy photons and electrons (1st bottom photo). ATLAS includes the world's largest superconducting magnets (2nd bottom photo), eight coils arranged into a large barrel shape t...

  1. HBCUs Break New Ground with Hospitality and Tourism Programs.

    Science.gov (United States)

    Nichols, Leland L.; And Others

    1992-01-01

    The perceptions of representatives of 16 historically black colleges and universities (HBCUs) concerning the future of hospitality and tourism education in those institutions are summarized. Comments address leadership, instruction, research, perceptions by other disciplines, ingredients for program success, industry-academe relationship, and…

  2. Breaking new ground at the interface of dendroecology and mycology.

    Science.gov (United States)

    Büntgen, Ulf; Egli, Simon

    2014-10-01

    New insight on the mycorrhizal fungus-host association, expected to emerge from combining dendrochronology, wood anatomy and mycology, may help to understanding better and disentangle biotic, abiotic, and combined edaphic factors of the mutualistic relation between ectomycorrhizal fungi and their perennial partners. Copyright © 2014 Elsevier Ltd. All rights reserved.

  3. Hospital breaks new ground with hybrid financing package.

    Science.gov (United States)

    McGuinness, L; Kline, T

    1984-02-01

    By applying financial management techniques that are more traditionally associated with corporate businesses, an Illinois hospital was able to generate the funds needed for a new replacement facility at a time when the money market was especially tight. The authors explain the structure of the hybrid financing package they used, and how such a strategy enabled the hospital to generate $61 million in capital at an interest rate almost 5 percent below prime.

  4. Breaking New Ground: The Search for a Sustainable Agriculture.

    Science.gov (United States)

    Rodale, Robert

    1983-01-01

    Conventional farming methods attempt to dominate nature. This approach is leading farmers toward self-destruction. If farmers use regenerative agriculture, farming would change from a battle against nature into the art of encouraging nature to release the most benefits for human use with the least possible effort. (AM)

  5. Ground-breaking virtual research in product development

    DEFF Research Database (Denmark)

    Søndergaard, Helle Alsted; Jespersen, Kristina Risom; Buck, Nuka

    2008-01-01

    MAPP also focuses on virtual reality. In the research project RIPS - the Role of Information Processing in NPD Strategy - a simulation of a product development process was used as a data collection instrument.......MAPP also focuses on virtual reality. In the research project RIPS - the Role of Information Processing in NPD Strategy - a simulation of a product development process was used as a data collection instrument....

  6. Testimony ceremonies in Asia: integrating spirituality in testimonial therapy for torture survivors in India, Sri Lanka, Cambodia, and the Philippines.

    Science.gov (United States)

    Agger, Inger; Igreja, Victor; Kiehle, Rachel; Polatin, Peter

    2012-07-01

    This study explores the therapeutic implications of including culturally adapted spiritual ceremonies in the process of testimonial therapy for torture survivors in India, Sri Lanka, Cambodia, and the Philippines. Data were collected through an action research process with Asian mental health and human rights organizations, during which the testimonial method was reconceptualized and modified to include four sessions. In the first two sessions, community workers assist survivors in the writing of their testimony, which is their narrative about the human rights violations they have suffered. In the third session, survivors participate in an honour ceremony in which they are presented with their testimony documents. In the fourth session, the community workers meet with the survivors for a reevaluation of their well-being. The honour ceremonies developed during the action research process came to employ different kinds of symbolic language at each site: human rights (India), religious/Catholic (Sri Lanka), religious/Buddhist (Cambodia), and religious/Moslem (Philippines). They all used embodied spirituality in various forms, incorporating singing, dancing, and religious purification rituals in a collective gathering. We suggest that these types of ceremonies may facilitate an individual's capacity to contain and integrate traumatic memories, promote restorative self-awareness, and engage community support. Additional research is needed to determine the method's applicability in other sociopolitical contexts governed by more Western-oriented medical traditions.

  7. Chinese Arts&Crafts (Hong Kong) Holds Grand Opening Ceremony for New Store in Beijing Financial Street Shopping Center

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Chinese Arts&Crafts, a Chinese luxury brand which has carried on Chinese cultural tradition for more than half a century, has opened its fourth high-level shop on the Chinese mainland in Beijing Financial Street. This follows right after grand opening ceremonies in Shenzhen, Hangzhou and the China World Trade Center Tower 3 in Beijing.

  8. Inhalation Exposures to Particulate Matter and Carbon Monoxide during Ethiopian Coffee Ceremonies in Addis Ababa: A Pilot Study

    Directory of Open Access Journals (Sweden)

    Chris Keil

    2010-01-01

    Full Text Available The unique Ethiopian cultural tradition of the coffee ceremony increases inhalation exposures to combustion byproducts. This pilot study evaluated exposures to particulate matter and carbon monoxide in ten Addis Ababa homes during coffee ceremonies. For coffee preparers the geometric mean (57 μg/m3 and median (72 μg/m3 contributions to an increase in a 24-hour time-weighted average exposure were above World Health Organization (WHO guidelines. At 40% of the study sites the contribution to the 24-hour average exposure was greater than twice the WHO guideline. Similar exposure increases existed for ceremony participants. Particulate matter concentrations may be related to the use of incense during the ceremony. In nearly all homes the WHO guideline for a 60-minute exposure to carbon monoxide was exceeded. Finding control measures to reduce these exposures will be challenging due to the deeply engrained nature of this cultural practice and the lack of availability of alternative fuels.

  9. Grounded theory.

    Science.gov (United States)

    Harris, Tina

    2015-04-29

    Grounded theory is a popular research approach in health care and the social sciences. This article provides a description of grounded theory methodology and its key components, using examples from published studies to demonstrate practical application. It aims to demystify grounded theory for novice nurse researchers, by explaining what it is, when to use it, why they would want to use it and how to use it. It should enable nurse researchers to decide if grounded theory is an appropriate approach for their research, and to determine the quality of any grounded theory research they read.

  10. Ethno-linguistic analysis of the vocabulary associated with the wedding ceremony (on the basis of the Pamiri languages

    Directory of Open Access Journals (Sweden)

    Nazarova Z. O.

    2015-01-01

    Full Text Available In the article, the vocabulary related to the wedding ceremony in the Pamiri languages is discussed. In particular, vocabulary reflecting the wedding ceremony in Ishkashimi language (one of the minor Pamiri languages is almost unknown. In the Pamiri languages are still preserved all the traditional wedding ceremonies. The vocabulary associated with them is well-kept in full and is indigenous and sometimes borrowed. For the most, the terminology applied in the ritual is borrowed. Often the term is borrowed from Badakhshan dialect of the Tajik language. At the same time, some Tajik words are used in specific meaning that is typical only to the dialect of Badakhshan and Dari language of Badakhshan in Afghanistan. This is mainly the vocabulary associated with traditional ways and procedures of the wedding ceremony. Some other words, such as sarbьzьrg ‘to give respect, attention to mourners’, can be observed only in classical Persian literature. In view of the Islamization of the region the Arab terms are frequently used in rituals; they are associated with official terminology applied during the marriage process and designate its legal aspects. There are also Turkic lexis that was included into the dictionary because of language and cultural contacts in the region. It is significant that in the lexicon predominate metaphorical and descriptive ways of designation of the ceremonies. Remarkable specific vocabulary with original meaning is of particular use in the local minor Iranian languages in comparison with such major written national languages as Tajik language of Tajikistan and Dari Afghanistan. For example, in Ishkashimi language (in Tajikistan and Afghanistan the word dumod is used only in the sense of “son-in-law”, and in the meaning of “bridegroom” - only šamard . Since the marriage and wedding ceremony has a special place in the spiritual culture of the people, the symbolic function is included into almost all the rites and

  11. Early ceremonial constructions at Ceibal, Guatemala, and the origins of lowland Maya civilization.

    Science.gov (United States)

    Inomata, Takeshi; Triadan, Daniela; Aoyama, Kazuo; Castillo, Victor; Yonenobu, Hitoshi

    2013-04-26

    The spread of plaza-pyramid complexes across southern Mesoamerica during the early Middle Preclassic period (1000 to 700 BCE) provides critical information regarding the origins of lowland Maya civilization and the role of the Gulf Coast Olmec. Recent excavations at the Maya site of Ceibal, Guatemala, documented the growth of a formal ceremonial space into a plaza-pyramid complex that predated comparable buildings at other lowland Maya sites and major occupations at the Olmec center of La Venta. The development of lowland Maya civilization did not result from one-directional influence from La Venta, but from interregional interactions, involving groups in the southwestern Maya lowlands, Chiapas, the Pacific Coast, and the southern Gulf Coast.

  12. Ritual and ceremony in intraoperative magnetic resonance imaging-assisted brain surgery.

    Science.gov (United States)

    Gellert, Vance

    2012-01-01

    Previous photographic research into traditional and shamanic healing practices in Peru and Bolivia and a review of the literature suggested that all medical practices have cultural determined nonmedical activities as integral parts of the healing encounter. These include costume, ritual, ceremony, environment factors that were looked for in a western clinical encounter for this paper. A patient was followed through pre-op preparation and iMRI assisted brain surgery. All activities were photographed extensively and evaluated in a broader healing context. A number of activities were visually and metaphorically comparable with those seen in other practices. These are discussed as rituals of intention on the part of the caregivers to focus their skills on healing and also to mindfully engage the patient in the healing process. Artistic observation and analysis may be an effective way to identify these non quantifiable elements of the healing encounter and suggest directions for further research into the emotional components of the healing process.

  13. Congruence of rituals and theatre. The use of drama for religious ceremony

    Directory of Open Access Journals (Sweden)

    Cosmin Tudor Ciocan

    2015-11-01

    Full Text Available I have started this research as a response to a pejorative question that religious rituals are merely theatrical, and the personnel involved nothing else but actors; beyond this there is nothing any religion suggests, e.g. healing, divine touch, blessings et.al. This paper is about rituals and their meanings and roles played as in social drama and theatre play. Considering the relationship between ritual and theatre to be reciprocal I will use their functions to evaluate the process of religious ceremonies and the role they play for adherents/participants, as if they would be attending a play. Religious Studies and Drama joint study offers the opportunity to combine two complementary humanities subjects, as both drama and religion are mainstays of cultural practice.

  14. From the CERN web: New Year ceremony, new LHC Programme Coordinator, scientific prize and more

    CERN Multimedia

    2016-01-01

    This section highlights articles, blog posts and press releases published in the CERN web environment over the past weeks. This way, you won’t miss a thing...     CERN DG meets locals and internationals in New Year ceremony 15 January – by James Gillies  In one of her first official duties as CERN Director General, Fabiola Gianotti met representatives of CERN’s local communities and international Geneva in Microcosm on Thursday evening to wish them a Happy New Year 2016, and to express thanks for their support. Photo (left to right): Charlotte Lindberg Warakaulle, Director for International Relations, Martin Steinacher, Director for Finance and Human Resources, Fabiola Gianotti, CERN Director-General, Eckhard Elsen, Director for Research and Computing and Frédérick Bordry, Director for Accelerators and Technology. Continue to read…    Jamie Bo...

  15. The tea ceremony room in traditional Japan: a stylized organization of space and time?

    Directory of Open Access Journals (Sweden)

    Eric Decreux

    2015-12-01

    Full Text Available The paper has the purpose to present the organization of the tea room in the Japanese traditional tea ceremony and its interactions with Japanese imaginary. It suggests mainly that this space is organized in such a way that it eventually appears to become a stylized living place, taking into account two requirements. The first one is clearly to provide a place where both host and guests can have an harmonious exchange around a bowl of tea. The second is to provide a place in harmony with an idealized cosmos expressing both the presence of an ecumene and of time, as it is perceived in the Japanese traditional spirit. The paper thus investigates the presence of diverse Japanese crafts: tatami, calligraphy and poetry, pottery, flowers, metalwork, Japanese pastry, sometimes clothes etc., but also the relationship with outer gardens, outside weather, and the rules of behavior between people. All of these elements are not only considered in relation to one another, but also in relation to the season, to the guests or to other elements of the situation. We emphasize the valorization of different places at some moments, the role of frontiers of some tatami borders or of the fan of each participant. The mutual respect between people playing different roles is also highlighted, as well as the respect towards the chosen objects. Finally, the coordination of the movements and places during the meeting creates a specific and often really appreciated atmosphere. These rules contribute to building a living socialized and idealized place in accordance with two of the well-known watchwords of the tea ceremony: wa kei sei jaku – harmony, respect, purity, tranquility and ichiko ichie one time, one meeting.

  16. On partially entanglement breaking channels

    CERN Document Server

    Chruscinski, D; Chruscinski, Dariusz; Kossakowski, Andrzej

    2005-01-01

    Using well known duality between quantum maps and states of composite systems we introduce the notion of Schmidt number of a quantum channel. It enables one to define classes of quantum channels which partially break quantum entanglement. These classes generalize the well known class of entanglement breaking channels.

  17. Symmetry Breaking by Nonstationay Optimisation

    NARCIS (Netherlands)

    Prestwich, S.; Hnich, B.; Rossi, R.; Tarim, S.A.

    2008-01-01

    We describe a new partial symmetry breaking method that can be used to break arbitrary variable/value symmetries in combination with depth first search, static value ordering and dynamic variable ordering. The main novelty of the method is a new dominance detection technique based on local search in

  18. Symmetry Breaking by Nonstationay Optimisation

    NARCIS (Netherlands)

    Prestwich, S.; Hnich, B.; Rossi, R.; Tarim, S.A.

    2008-01-01

    We describe a new partial symmetry breaking method that can be used to break arbitrary variable/value symmetries in combination with depth first search, static value ordering and dynamic variable ordering. The main novelty of the method is a new dominance detection technique based on local search in

  19. Entanglement–breaking indices

    Energy Technology Data Exchange (ETDEWEB)

    Lami, L. [Scuola Normale Superiore, I-56126 Pisa (Italy); Giovannetti, V. [NEST, Scuola Normale Superiore and Istituto Nanoscienze-CNR, I-56127 Pisa (Italy)

    2015-09-15

    We study a set of new functionals (called entanglement–breaking indices) which characterize how many local iterations of a given (local) quantum channel are needed in order to completely destroy the entanglement between the system of interest over which the transformation is defined and an external ancilla. The possibility of contrasting the noisy effects introduced by the channel iterations via the action of intermediate (filtering) transformations is analyzed. We provide some examples in which our functionals can be exactly calculated. The differences between unitary and non-unitary filtering operations are analyzed showing that, at least for systems of dimension d larger than or equal to 3, the non-unitary choice is preferable (the gap between the performances of the two cases being divergent in some cases). For d = 2 (qubit case), on the contrary, no evidences of the presence of such gap is revealed: we conjecture that for this special case unitary filtering transformations are optimal. The scenario in which more general filtering protocols are allowed is also discussed in some detail. The case of a depolarizing noise acting on a two–qubit system is exactly solved in a general case.

  20. Quantum phase transitions about parity breaking in matrix product systems

    Institute of Scientific and Technical Information of China (English)

    ZHU Jing-Min

    2011-01-01

    According to our scheme to construct quantum phase transitions (QPTs) in spin chain systems with matrix product ground states, we first successfully combine matrix product state (MPS) QPTs with spontaneous symmetry breaking. For a concrete model, we take into account a kind of MPS QPTs accompanied by spontaneous parity breaking, though for either side of the critical point the GS is typically unique, and show that the kind of MPS QPTs occur only in the thermodynamic limit and are accompanied by the appearance of singularities, diverging correlation length, vanishing energy gap and the entanglement entropy of a half-infinite chain not only staying finite but also whose first derivative discontinuous.

  1. Grounded cognition.

    Science.gov (United States)

    Barsalou, Lawrence W

    2008-01-01

    Grounded cognition rejects traditional views that cognition is computation on amodal symbols in a modular system, independent of the brain's modal systems for perception, action, and introspection. Instead, grounded cognition proposes that modal simulations, bodily states, and situated action underlie cognition. Accumulating behavioral and neural evidence supporting this view is reviewed from research on perception, memory, knowledge, language, thought, social cognition, and development. Theories of grounded cognition are also reviewed, as are origins of the area and common misperceptions of it. Theoretical, empirical, and methodological issues are raised whose future treatment is likely to affect the growth and impact of grounded cognition.

  2. Breaking the race barrier.

    Science.gov (United States)

    Minrath, M

    1985-08-01

    Through the reflective process of analyzing one's own feelings and reactions to the ethnic minority patient, the white therapist develops an inner clarity that serves as a resource to cope with the unique conflicts one must confront in interracial practice. Only when the therapist has come to some resolution of his or her own feelings about the plight of ethnic minorities in this country can this acumen develop. Although the therapeutic skills applied in psychotherapy with ethnic minorities are in no way different from overall therapeutic skills, certain techniques may be especially useful in interracial practice. For instance, a discussion of the meaning of race and ethnicity in the relationship may curtail racial distortion, prevent stereotyping, and lead to the creation of a therapeutic alliance. When dealing with transference and countertransference issues, the therapist must be particularly attentive to the representation of these same distortions and stereotypes. Formulating clinical problems from dual perspectives, theoretical and sociocultural, is an arduous, but necessary task. Finally, the white therapist must be able to view ethnic minority patients as individuals. Although these patients cope with special problems which must be acknowledged and dealt with in therapy, the therapist must realize there is a common ground on which to communicate. On this common ground, therapists discover the foundation of interracial clinical practice is the ability to accept and respect their patients and themselves as individuals who may have similar anxieties, problems, experiences, and goals. It is through the recognition and sharing of the fundamental human bond that ethnic and racial differences, which may have detrimental effects on interpersonal relationships, are transcended.

  3. Supersymmetry breaking with extra dimensions

    Indian Academy of Sciences (India)

    Fabio Zwirner

    2004-02-01

    This talk reviews some aspects of supersymmetry breaking in the presence of extra dimensions. The first part is a general introduction, recalling the motivations for supersymmetry and extra dimensions, as well as some unsolved problems of four-dimensional models of supersymmetry breaking. The central part is a more focused introduction to a mechanism for (super)symmetry breaking, proposed first by Scherk and Schwarz, where extra dimensions play a crucial role. The last part is devoted to the description of some recent results and of some open problems.

  4. Breaking beer bottles with cavitation

    Science.gov (United States)

    Jung, Sunny; Fontana, Jake; Palffy-Muhoray, Peter; Shelley, Michael

    2009-03-01

    Hitting the top of a beer bottle, nearly full of water, with an open hand can cause the bottle to break, with the bottom separating from upper section. We have studied this phenomenon using a high-speed camera, and observed the formation, coalescence and collapse of bubbles. The breaking of glass is due to cavitation, typically occurring near the bottom edge. We make numerical estimates of the relevant physical parameters, and compare these with experimental observations.

  5. Massive photons from Super and Lorentz symmetry breaking

    CERN Document Server

    Bonetti, Luca; Helayël-Neto, José A; Spallicci, Alessandro D A M

    2016-01-01

    In the context of Standard Model Extensions (SMEs), we analyse four general classes of Super Symmetry (SuSy) and Lorentz Symmetry (LoSy) breaking, leading to {observable} imprints at our energy scales. The photon dispersion relations show a non-Maxwellian behaviour for the CPT (Charge-Parity-Time reversal symmetry) odd and even sectors. The group velocities exhibit also a directional dependence with respect to the breaking background vector (odd CPT) or tensor (even CPT). In the former sector, the group velocity may decay following an inverse squared frequency behaviour. Thus, we extract a massive and gauge invariant Carroll-Field-Jackiw photon term in the Lagrangian and show that the mass is proportional to the breaking vector. The latter is estimated by ground measurements and leads to a photon mass upper limit of $10^{-19}$ eV or $2 \\times 10^{-55}$ kg and thereby to a potentially measurable delay at low radio frequencies.

  6. Spontaneous spherical symmetry breaking in atomic confinement

    Science.gov (United States)

    Sveshnikov, Konstantin; Tolokonnikov, Andrey

    2017-07-01

    The effect of spontaneous breaking of initial SO(3) symmetry is shown to be possible for an H-like atom in the ground state, when it is confined in a spherical box under general boundary conditions of "not going out" through the box surface (i.e. third kind or Robin's ones), for a wide range of physically reasonable values of system parameters. The most novel and nontrivial result, which has not been reported previously, is that such an effect takes place not only for attractive, but also for repulsive interactions of atomic electrons with the cavity environment. Moreover, in the limit of a large box size R ≫ aB the regime of an atom, soaring over a plane with boundary condition of "not going out", is reproduced, rather than a spherically symmetric configuration, which would be expected on the basis of the initial SO(3) symmetry of the problem.

  7. Biased discrete symmetry breaking and Fermi balls

    CERN Document Server

    MacPherson, A L; Macpherson, Alick L; Campbell, Bruce A

    1994-01-01

    The spontaneous breaking of an approximate discrete symmetry is considered, with the resulting protodomains of true and false vacuum being separated by domain walls. Given a strong, symmetric Yukawa coupling of the real scalar field to a generic fermion, the domain walls accumulate a gas of fermions, which modify the domain wall dynamics. The splitting of the degeneracy of the ground states results in the false vacuum protodomain structures eventually being fragmented into tiny false vacuum bags with a Fermi gas shell (Fermi balls), that may be cosmologically stable due to the Fermi gas pressure and wall curvature forces, acting on the domain walls. As fermions inhabiting the domain walls do not undergo number density freeze out, stable Fermi balls exist only if a fermion anti-fermion asymmetry occurs. Fermi balls formed with a new Dirac fermion that possesses no standard model gauge charges provide a novel cold dark matter candidate.

  8. Discrete Symmetry Breaking in Fractional Chern Insulators

    Science.gov (United States)

    Kumar, Akshay; Roy, Rahul; Sondhi, S. L.

    2014-03-01

    We study the interplay between quantum hall ordering and spontaneous translational symmetry breaking in a multiple Chern number (C > 1) band at partial filling. We begin with non-interacting fermions in a family of square lattice models with flat C=2 bands and a wide band gap, and add nearest neighbor density-density repulsive interactions. By means of Hartree-Fock theory supplemented by numerical exact diagonalization for a small system at 1/2 filling, we find that the system generically develops charge density wave order with two degenerate ground states. We note that this physics is especially transparent in the limit in which the C=2 band describes two decoupled C=1 bands. We discuss the nature of domain walls in this phase and note the close analogy to the quantum Hall Ising ferromagnet in the multivalley problem. Finally we discuss generalizations to other fillings and higher Chern numbers.

  9. Spontaneous spherical symmetry breaking in atomic confinement

    CERN Document Server

    Sveshnikov, K

    2016-01-01

    The effect of spontaneous breaking of initial SO(3) symmetry is shown to be possible for an H-like atom in the ground state, when it is confined in a spherical box under general boundary conditions of "not going out" through the box surface (i.e. third kind or Robin's ones), for a wide range of physically reasonable values of system parameters. The reason is that such boundary conditions could yield a large magnitude of electronic wavefunction in some sector of the box boundary, what in turn promotes atomic displacement from the box center towards this part of the boundary, and so the underlying SO(3) symmetry spontaneously breaks. The emerging Goldstone modes, coinciding with rotations around the box center, restore the symmetry by spreading the atom over a spherical shell localized at some distances from the box center. Atomic confinement inside the cavity proceeds dynamically -- due to the boundary condition the deformation of electronic wavefunction near the boundary works as a spring, that returns the at...

  10. The Opening Ceremony of the International Research Center on Karst under the Auspices of UNESCO was held in Guilin on 15 December,2008

    Institute of Scientific and Technical Information of China (English)

    Wu Yuexia

    2008-01-01

    @@ The Opening Ceremony of the International Research Center on Karst under the Auspices of UNESCO was held in the Institute of Karst Geology,Chinese Academy of Geological Sciences in Guilin on 15 December,2008.

  11. The study is believed to be used to treat illnesses Yau ceremony of Phutai. Natal village , Tambon Tao Ngoi, Tao Ngoi District, Sakon Nakhon Province

    Directory of Open Access Journals (Sweden)

    Boonchom Srisa-ard

    2016-12-01

    Full Text Available This research aimed to 1 study the beliefs and the cause of the ailments of the ceremony to Yau. Which is from Thailand, Village Natal district, Tao Ngoi District, Sakon Nakhon 2 to study the composition of the ceremony Yao and 3 to study the Yau ceremony. The method resources from data collection divided into two parts, there were 1 documentation research articles, theses, books, textbooks and information from the Internet, and 2 the interview with the people who knew the four ceremonies of You. The study found the phenomenon as follows: 1 Belief in the Yau ceremony, that Yau is believed to cure illness, disease caused by an act of the devil. The treatment with modern medicine can not be cured. Parents or family elders had prior therapy with Yau. The disease which is believed to occur in this manner must be gone because of Yao. Some of which can actually be cured, mean while some extended for several more years. The treatment facilities for patients is that Yao can be come home. And pitched immediate treatment faster than the health center or hospital where the procedure was hospitalized several timeconsuming steps. 2 The components of Yau ceremony, are Yau illnesses, Yau is patient, the Yao spit, and music instruments. 3 The ceremony of Yau has five phases: preparation before starting the ceremony. Next, the invitation to the major deities or spirits. then Yao toss the cause of the illness. the reassure patients to leave the various deities and spirits. leave the body return to and live in their residence.

  12. SPIRITUAL TOURISM: A CASE STUDY OF FOREIGNERS’ PARTICIPATION IN THE PITRAYAJNA CEREMONY IN THE DESA PAKRAMAN OF MUNCAN, SELAT, KARANGASEM, BALI

    Directory of Open Access Journals (Sweden)

    Nararya - Narottama

    2016-03-01

    Full Text Available The influence of globalization appears to occur worldwide and affect any joint of life, including small village near Mount Agung, named Muncan Pakraman village, Karangasem, Bali. When the series of Pitrayajña ceremonies (Balinese traditional cremation series took place in 2009 at this village, a lot of foreigners from various countries got involved, includeing Germany, Turkey, Israel, the Netherlands, UK, Spain, Belgium and Italy. They were involved not only as a spectators or tourists, but participated in the ceremony for their ancestors, and deceased loved ones and took part in "Ngayah" (working together and voluntarily, without being paid. Pitrayajña ceremony is processions of sacred ceremonies, which usually performed only by Hindus, especially in Bali, was also participated by foreigners (international students of Ratu Bagus Ashram, who were having a spiritual journey to find their true identity. Formally, they were not Hindus, but believed in the teachings of the Hindu religion, and their activities are form of spiritual tourism implementation in Bali. The main problem of research is to reveal how the phenomenon of deconstructing Pitrayajña ceremony in Bali, how the participation of foreign persons in this ceremony, what motivated them, what was the public perception of the deconstruction of Pitrayajña ceremony, the views of the Hindu leaders in Bali to the deconstruction of the Pitrayajña ceremony and whether there was a change of meaning, if the changes are purely the universality of Hindu religion itself, how its impact on society, and its relation to spiritual tourism. With the formulation of a clear scope, this research is also expected to produce maximum findings.

  13. An Algorithm of Backward Shadow Generation about the Master of Ceremonies of Player in Virtual Studio

    Institute of Scientific and Technical Information of China (English)

    LIZili; ZHUGuangxi; ZHUYaoting

    2003-01-01

    In this paper a technical scheme to construct virtual studio has heen proposed where orientation tracker and telemeter was used for improving conventional BETACAM pickup camera and connecting with the software module of host.A new model of virtual camera named Camera & Post-camera Cupling Pair has been put forward,which is different from common model in computer graphics and has been bound to real BETACAM pickup camera.The formula has been educed to compute foreground frame buffer image and background frame buffer image of virtual scene whose boundary is based on depth information of target point of BETACAM pickup camera's projective ray.The effect of real-time consistency has been achieved between the video image sequences of the master of ceremonies or players(MCP)and computer graphics(CG)video image sequences for virtual scene in spatial position,perspective relationship and image object masking.An algorithm for generation of backward shadow of MCP has been submitted based on equable division and extraction to marginal points of the edge of MCP to construct closed cubic B-spline curve to fit the edge and build a ray cone to project the backward shadow.The experimental result has shown that the scheme of virtual studio submitted in this paper is feasible,applicative and effective.

  14. The Tea Ceremony in Chinese Marriage Culture%中国婚俗中的茶礼

    Institute of Scientific and Technical Information of China (English)

    杨璞

    2014-01-01

    茶文化在中国文化中扮演着重要角色,随着朝代的更迭,茶叶逐渐被赋予精神内涵与象征意义,所形成的茶礼也成为中国婚俗当中极具特色的内容,这与茶叶在普通人家中的地位、茶叶本身的生长特性以及茶叶所代表的精神有关。而经过数百年历史演变的中国传统的婚俗茶礼文化则体现了中华民族的文化品格和民族精神,在中国风俗文化中具有深层意义。%Tea Culture plays a crucial role in Chinese culture.Throughout history, tea has gradually been given more and more spiritual and symbolic meanings.As a result, the tea ceremony has emerged into a unique and special feature of Chinese marriage culture-all of which a product of both the elevated position of tea in ordinary people’ s everyday life and the innate qualities and sym-bolism of tea.It has evolved to be an icon of the Chinese national spirit and culture.

  15. Research on inosculation between master of ceremonies or players and virtual scene in virtual studio

    Science.gov (United States)

    Li, Zili; Zhu, Guangxi; Zhu, Yaoting

    2003-04-01

    A technical principle about construction of virtual studio has been proposed where orientation tracker and telemeter has been used for improving conventional BETACAM pickup camera and connecting with the software module of the host. A model of virtual camera named Camera & Post-camera Coupling Pair has been put forward, which is different from the common model in computer graphics and has been bound to real BETACAM pickup camera for shooting. The formula has been educed to compute the foreground frame buffer image and the background frame buffer image of the virtual scene whose boundary is based on the depth information of target point of the real BETACAM pickup camera's projective ray. The effect of real-time consistency has been achieved between the video image sequences of the master of ceremonies or players and the CG video image sequences for the virtual scene in spatial position, perspective relationship and image object masking. The experimental result has shown that the technological scheme of construction of virtual studio submitted in this paper is feasible and more applicative and more effective than the existing technology to establish a virtual studio based on color-key and image synthesis with background using non-linear video editing technique.

  16. Traffic: Special arrangements for the Official Ceremony on 19th October - REMINDER

    CERN Multimedia

    Relations with the Host States Service

    2004-01-01

    Disruption: Route de Meyrin: probably closed to traffic by the police between 2.00 p.m. and 3.00 p.m. and between 5.00 p.m. and 7.00 p.m. for the arrival and departure of VIPs. Saint-Genis-Pouilly roundabout: access difficult between 2.00 p.m. and 2.30 p.m., when the new entrance to the Meyrin site will be inaugurated. Reception of building 33 : closed from 13h00 to 19h00 ; Car parks prohibited from 16 to 19 October inclusive (Open Day and Official Ceremony): the car parks located between the two lines on the drawing below (guests will register in a tent set up opposite Building 156), a marked out area of the external car park in front of Building 33; the appropriate road signs will be erected. Recommendations for 19 October Do not use Gates A and B from 12.30 p.m. to 3.00 p.m. and from 4.30 p.m. to 7.00 p.m. During these times, please use: Gate C (Satigny): exceptionally open in both directions between 12.30 p.m. and 7.30 p.m. Tunnel linking the Meyrin and Prévessin...

  17. Mummy Lake: An unroofed ceremonial structure within a large-scale ritual landscape

    Science.gov (United States)

    Benson, Larry V.; Griffin, Eleanor R.; Stein, J.R.; Friedman, R. A.; Andrae, S. W.

    2014-01-01

    The structure at Mesa Verde National Park known historically as Mummy Lake and more recently as Far View Reservoir is not part of a water collection, impoundment, or redistribution system. We offer an alternative explanation for the function of Mummy Lake. We suggest that it is an unroofed ceremonial structure, and that it serves as an essential component of a Chacoan ritual landscape. A wide constructed avenue articulates Mummy Lake with Far View House and Pipe Shrine House. The avenue continues southward for approximately 6 km where it apparently divides connecting with Spruce Tree House and Sun Temple/Cliff Palace. The avenue has previously been interpreted as an irrigation ditch fed by water impounded at Mummy Lake; however, it conforms in every respect to alignments described as Chacoan roads. Tree-ring dates indicate that the construction of Spruce Tree House and Cliff Palace began about A.D. 1225, roughly coincident with the abandonment of the Far View community. This pattern of periodically relocating the focus of an Anasazi community by retiring existing ritual structures and linking them to newly constructed facilities by means of broad avenues was first documented by Fowler and Stein (1992) in Manuelito Canyon, New Mexico. Periods of intense drought appear to have contributed to the relocation of prehistoric Native Americans from the Far View group to Cliff Palace/Spruce Tree House in the mid-13th century and eventually to the abandonment of all Anasazi communities in southwestern Colorado in the late-13th century.

  18. KSC Center Director Bridges addresses the audience at an ISO 9001 certification ceremony

    Science.gov (United States)

    1998-01-01

    Center Director Roy Bridges speaks to KSC employees at the ISO certification ceremony held at the Training Auditorium. Bridges was presented an ISO 9001 certificate and plaque awarded to KSC by Det Norske Veritas (DNV), Inc., an international ISO certification organization. ISO 9001 comprises the most detailed, comprehensive set of standard requirements for quality programs established by the International Standards Organization. The presentation followed a successful independent audit by DNV of the KSC Management System in May of this year. The third-party auditors examined about 20 elements of KSC's system, including management responsibility, design control, documentation, test and inspection, and corrective action procedures. DNV found that KSC met or exceeded the stringent quality standards in all areas. KSC will use this certification as a tool to improve an already world- class team. All NASA centers are required by NASA Administrator Daniel S. Goldin to be ISO 9001 registered by September 1999. NASA is the first federal agency to seek the quality certification. Next to Bridges is Heidi Hollingsworth, with the Center for Independent Living, who uses American Sign Language for any hearing-impaired employees in the audience.

  19. KSC Center Director Bridges addresses the audience at an ISO 9001 certification ceremony

    Science.gov (United States)

    1998-01-01

    Center Director Roy Bridges speaks to KSC employees at the ISO certification ceremony held at the Training Auditorium. Bridges was presented an ISO 9001 certificate and plaque awarded to KSC by Det Norske Veritas (DNV), Inc., an international ISO certification organization. ISO 9001 comprises the most detailed, comprehensive set of standard requirements for quality programs established by the International Standards Organization. The presentation followed a successful independent audit by DNV of the KSC Management System in May of this year. The third-party auditors examined about 20 elements of KSC's system, including management responsibility, design control, documentation, test and inspection, and corrective action procedures. DNV found that KSC met or exceeded the stringent quality standards in all areas. KSC will use this certification as a tool to improve an already world- class team. All NASA centers are required by NASA Administrator Daniel S. Goldin to be ISO 9001 registered by September 1999. NASA is the first federal agency to seek the quality certification. Next to Bridges is Heidi Hollingsworth, with the Center for Independent Living, who uses American Sign Language for any hearing-impaired employees in the audience.

  20. Ground Wars

    DEFF Research Database (Denmark)

    Nielsen, Rasmus Kleis

    Political campaigns today are won or lost in the so-called ground war--the strategic deployment of teams of staffers, volunteers, and paid part-timers who work the phones and canvass block by block, house by house, voter by voter. Ground Wars provides an in-depth ethnographic portrait of two...... infrastructures that utilize large databases with detailed individual-level information for targeting voters, and armies of dedicated volunteers and paid part-timers. Nielsen challenges the notion that political communication in America must be tightly scripted, controlled, and conducted by a select coterie...... of professionals. Yet he also quashes the romantic idea that canvassing is a purer form of grassroots politics. In today's political ground wars, Nielsen demonstrates, even the most ordinary-seeming volunteer knocking at your door is backed up by high-tech targeting technologies and party expertise. Ground Wars...

  1. Ulysses breaks latitude record

    Science.gov (United States)

    1993-06-01

    time of closest approach, and the unexpectedly strong influence of the solar wind deep in the magnetosphere during the outbound passage. With the Jupiter fly-by safely accomplished, the scientific focus is now directed towards phenomena related to the increasing latitute of the spacecraft. Already, there is strong evidence that Ulysses is now in the domain of the southern polar magnetic field. By a fortunate coincidence, just as Ulysses was reaching 32 degrees South, the magnetic field and plasma analyser scientific teams were seeing the first evidence of the effect of increasing latitude on the magnetised solar wind. The two complementary sets of observations reveal the passage of Ulysses into a magnetic unipolar regime corresponding to latitudes above the sunspot belt, having permanently crossed the boundary separating northern and southern magnetic fields. Following the flight over the Sun's southern pole, Ulysses' orbit will bring the spaceprobe swinging back towards the equatorial regions, heading for its second high-latitude excursion in mid-1995, this time above the North polar regions. "By the end of September 1995, Ulysses will have put our knowledge of the Sun and its environment in a completely new perspective", says Dr. Marsden, ESA's Project Scientist for Ulysses. "Only by studying the way the Sun influences the space around it in a global manner can we hope to understand its influence on our local interplanetary environment". An example of this "local" influence is the disturbance experienced by technical systems in Earth orbit and on the ground (e.g., telecommunications systems) at the time of major solar flares. Note to the Editors: Near the Sun's equatorial regions, the interplanetary magnetic field alternately points toward and away from the Sun during a single solar rotation which gives rise to so-called magnetic sectors. The existence of these sectors is interpreted as the effect of a vast current sheet, tilted with respect to the Sun's rotation

  2. Isospin breaking from diquark clustering

    Science.gov (United States)

    Gibbs, W. R.; Dedonder, Jean-Pierre

    2017-09-01

    Background: Although SU(2) isospin symmetry is generally assumed in the basic theory of the strong interaction, a number of significant violations have been observed in scattering and bound states of nucleons. Many of these violations can be attributed to the electromagnetic interaction but the question of how much of the violation is due to it remains open. Purpose: To establish the connection between diquark clustering in the two-nucleon system and isospin breaking from the Coulomb interaction between the members of diquark pairs. Method: A schematic model based on clustering of quarks in the interior of the confinement region of the two-nucleon system is introduced and evaluated. In this model the Coulomb interaction is the source of all isospin breaking. It draws on a picture of the quark density based on the diquark-quark model of hadron structure which has been investigated by a number of groups. Results: The model produces three isospin breaking potentials connecting the unbroken value of the low-energy scattering amplitude to those of the p p , n n , and n p singlet channels. A simple test of the potentials in the three-nucleon energy difference problem yields results in agreement with the known binding energy difference. Conclusion: The illustrative model suggests that the breaking seen in the low-energy nucleon-nucleon (NN) interaction may be understood in terms of the Coulomb force between members of diquark clusters. It allows the prediction of the charge symmetry breaking interaction and the n n scattering length from the well measured n p singlet scattering length. Values of the n n scattering length around -18 fm are favored. Since the model is based on the quark picture, it can be easily extended, in the SU(3) limit, to calculate isospin breaking in the strange sector in the corresponding channels. A natural consequence of isospin breaking from diquark clustering is that the breaking in the strange sector, as measured by the separation energy

  3. A primary school active break programme (ACTI-BREAK): study protocol for a pilot cluster randomised controlled trial.

    Science.gov (United States)

    Watson, Amanda; Timperio, Anna; Brown, Helen; Hesketh, Kylie D

    2017-09-19

    Levels of overall physical activity have been shown to decline across childhood. Schools are considered ideal settings to promote physical activity as children spend a large amount of their waking hours at school. Time-efficient physical activity strategies that demonstrate a positive impact on academic-related outcomes are needed to enable physical activity to be prioritised in the school day. The ACTI-BREAK programme requires classroom teachers to integrate active breaks; 5-min bursts of moderate-intensity physical activity into their classroom routine. Active breaks have been shown to be effective in improving academic-related outcomes, a potentially appealing aspect for teachers and schools. The primary aim of this study is to assess the feasibility and potential efficacy of the ACTI-BREAK programme on children's academic achievement. Secondary aims are to explore the impact of ACTI-BREAK on children's on-task behaviour and objectively measured physical activity levels. ACTI-BREAK is a 6-week, classroom-based, physical activity intervention. This pilot trial of the programme will be evaluated using a cluster randomised controlled design. Government primary schools in metropolitan Melbourne, Australia will be invited to participate in the programme in 2017. Randomisation will occur at the school level, with the aim to recruit six schools (three intervention and three control). The ACTI-BREAK programme is theoretically grounded, and was developed with input and guidance from current primary school teachers. Teachers from the intervention schools will receive a 45-min training session and be asked to incorporate ACTI-BREAKS into their classroom routine three times per day for 6 weeks. Intervention support will be provided via assisted delivery. The primary outcomes will be children's academic achievement in mathematics and reading. Children's on-task behaviour and school-day physical activity will be assessed as secondary outcomes. Process evaluation will also be

  4. The potency of Bukit Tapak forest as means for traditional ceremony, environmental conservation, and education

    Directory of Open Access Journals (Sweden)

    I WAYAN SUMANTERA

    2004-07-01

    Full Text Available Bukit Tapak (1903 m the natural reserve of Batukau I (816.4 ha is one of three natural reserve area of Batukau (1762.8 ha, 1974. Located at the tourism object of Bedugul, the eastern part boundaries to the Botanic Garden Eka Karya-LIPI (154.5 ha, 1959 and settlement of Candikuning area (1152 family, 4475 persons and near the three lakes of the water resources of Bali; Beratan, Buyan and Tamblingan lake. The special plants; cemara geseng (Casuarina junghuhniana Miq., cemara pandak (Dacrycarpus imbricatus (Blume de Laub., nyabah (Pinanga arinasaensis J.R. Witono, paku kidang (Dicksonia blumei Planch., and purnajiwa (Euchresta horsfieldii (Lesch. Benth.. The pioneer plant of the hill is cemara geseng and the endemic is cemara pandak. The plant of needle leaves that basically the existence of Bali Botanical Garden as the conservation ex situ flora of noodle leaves especially at the eastern Indonesian area. Nyabah, which is supposed to be the new kind of palm named Arinasa, driven from the staff name who is the pioneer of the conservation. Paku kidang is rare. There are ethnobotany plants of ritual ceremony such as: kayu tulak (Schefflera sp., kayu tulung (Brasaia sp., penjalin (Calamus sp., paku pidpid (Nephrolepis sp., trijata (Medinilla speciosa (Blume ex Mart. Blume, etc. Balinese people believe that forest is holly and sacred. But because of the existence of Pura Teratai Bang (16 century at the slope, moslem cemetery (found in 1938 at the peak, and other needs (climbing, food, medicine, etc., it can not be avoided the entrances of people that caused the forest is damaged. The forest reservation needs the approach to the local people, so the solution are morally and integration. The use of the forest which is potential as the environment education facilities conservation and other alternatives such as: horticulture, the improvement of the people economy discussed here to be the input for the forest conservation wisely and continuously.

  5. An Analysis of Break,Break,Break Based on the Stylistic Theory

    Institute of Scientific and Technical Information of China (English)

    李瑶

    2014-01-01

    Break,Break,Break is a poem by Alfred Lord Tennyson, the Poet Laureate during the Queen Victoria's reign. This exquisite little poem is wel known for the poet’s grief-stricken feelings and heart-broken emotions over the premature death of his best friend, Arthur Henry Hal am. Most of the previous studies on this poem focus on the emotional level to consider it as an elegy, expressing sorrow and lamentation for the death of a particular person. However, in order to have a deep understanding in general, this paper analyzes the poem based on the stylistic theory, concerning on the phonological level and the grammatical level. It aims at helping the readers to cultivate a sense of appropriateness, to sharpen the understanding and appreciation of literary works and to achieve adaptation in translation.

  6. Small Break Air Ingress Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Chang Oh; Eung Soo Kim

    2011-09-01

    The small break air-ingress experiment, described in this report, is designed to investigate air-ingress phenomena postulated to occur in pipes in a very high temperature gas-cooled reactor (VHTRs). During this experiment, air-ingress rates were measured for various flow and break conditions through small holes drilled into a pipe of the experimental apparatus. The holes were drilled at right angles to the pipe wall such that a direction vector drawn from the pipe centerline to the center of each hole was at right angles with respect to the pipe centerline. Thus the orientation of each hole was obtained by measuring the included angle between the direction vector of each hole with respect to a reference line anchored on the pipe centerline and pointing in the direction of the gravitational force. Using this reference system, the influence of several important parameters on the air ingress flow rate were measured including break orientation, break size, and flow velocity . The approach used to study the influence of these parameters on air ingress is based on measuring the changes in oxygen concentrations at various locations in the helium flow circulation system as a function of time using oxygen sensors (or detectors) to estimate the air-ingress rates through the holes. The test-section is constructed of a stainless steel pipe which had small holes drilled at the desired locations.

  7. Appointment breaking: causes and solutions.

    Science.gov (United States)

    Bean, A G; Talaga, J

    1992-12-01

    From a review of research on health care appointment breaking, the authors find that patient demographic characteristics, psychosocial problems, previous appointment keeping, health beliefs, and situational factors predict no-show behavior. Suggestions are offered for designing the marketing mix to increase patient appointment keeping. Methods for mitigating the negative effects of no-shows on health care providers are described.

  8. Code breaking in the pacific

    CERN Document Server

    Donovan, Peter

    2014-01-01

    Covers the historical context and the evolution of the technically complex Allied Signals Intelligence (Sigint) activity against Japan from 1920 to 1945 Describes, explains and analyzes the code breaking techniques developed during the war in the Pacific Exposes the blunders (in code construction and use) made by the Japanese Navy that led to significant US Naval victories

  9. Strong coupling electroweak symmetry breaking

    Energy Technology Data Exchange (ETDEWEB)

    Barklow, T.L. [Stanford Linear Accelerator Center, Menlo Park, CA (United States); Burdman, G. [Univ. of Wisconsin, Madison, WI (United States). Dept. of Physics; Chivukula, R.S. [Boston Univ., MA (United States). Dept. of Physics

    1997-04-01

    The authors review models of electroweak symmetry breaking due to new strong interactions at the TeV energy scale and discuss the prospects for their experimental tests. They emphasize the direct observation of the new interactions through high-energy scattering of vector bosons. They also discuss indirect probes of the new interactions and exotic particles predicted by specific theoretical models.

  10. Sediment transport under breaking waves

    DEFF Research Database (Denmark)

    Christensen, Erik Damgaard; Hjelmager Jensen, Jacob; Mayer, Stefan

    2000-01-01

    generated at the surface where the wave breaks as well as the turbulence generated near the bed due to the wave-motion and the undertow. In general, the levels of turbulent kinetic energy are found to be higher than experiments show. This results in an over prediction of the sediment transport. Nevertheless...

  11. Breaking Carbon Lock-in

    DEFF Research Database (Denmark)

    Driscoll, Patrick Arthur

    2014-01-01

    This central focus of this paper is to highlight the ways in which path dependencies and increasing returns (network effects) serve to reinforce carbon lock-in in large-scale road transportation infrastructure projects. Breaking carbon lock-in requires drastic changes in the way we plan future...

  12. Hole localization and symmetry breaking

    NARCIS (Netherlands)

    Broer, R; Nieuwpoort, W.C.

    1999-01-01

    A brief overview is presented of some theoretical work on the symmetry breaking of electronic wavefunctions that followed the early work on Bagus and Schaefer who observed that a considerable lower SCF energy could be obtained for an ionized state of the O2 molecule with a 1s hole if the symmetry re

  13. Inflationary implications of supersymmetry breaking

    NARCIS (Netherlands)

    Borghese, Andrea; Roest, Diederik; Zavala, Ivonne

    2013-01-01

    We discuss a general bound on the possibility to realise inflation in any minimal supergravity with F-terms. The derivation crucially depends on the sGoldstini, the scalar field directions that are singled out by spontaneous supersymmetry breaking. The resulting bound involves both slow-roll paramet

  14. How do accretion discs break?

    Science.gov (United States)

    Dogan, Suzan

    2016-07-01

    Accretion discs are common in binary systems, and they are often found to be misaligned with respect to the binary orbit. The gravitational torque from a companion induces nodal precession in misaligned disc orbits. In this study, we first calculate whether this precession is strong enough to overcome the internal disc torques communicating angular momentum. We compare the disc precession torque with the disc viscous torque to determine whether the disc should warp or break. For typical parameters precession wins: the disc breaks into distinct planes that precess effectively independently. To check our analytical findings, we perform 3D hydrodynamical numerical simulations using the PHANTOM smoothed particle hydrodynamics code, and confirm that disc breaking is widespread and enhances accretion on to the central object. For some inclinations, the disc goes through strong Kozai cycles. Disc breaking promotes markedly enhanced and variable accretion and potentially produces high-energy particles or radiation through shocks. This would have significant implications for all binary systems: e.g. accretion outbursts in X-ray binaries and fuelling supermassive black hole (SMBH) binaries. The behaviour we have discussed in this work is relevant to a variety of astrophysical systems, for example X-ray binaries, where the disc plane may be tilted by radiation warping, SMBH binaries, where accretion of misaligned gas can create effectively random inclinations and protostellar binaries, where a disc may be misaligned by a variety of effects such as binary capture/exchange, accretion after binary formation.

  15. Aluminum break-point contacts

    NARCIS (Netherlands)

    Heinemann, Martina; Groot, R.A. de

    1997-01-01

    Ab initio molecular dynamics is used to study the contribution of a single Al atom to an aluminum breakpoint contact during the final stages of breaking and the initial stages of the formation of such a contact. A hysteresis effect is found in excellent agreement with experiment and the form of the

  16. Ceremonial dress of the Achaemenid nobility of the VI– V centuries BC (according to findings from the fifth Pazyryk kurgan and synchronous iconic monuments of the Achaemenid time

    Directory of Open Access Journals (Sweden)

    Tsareva E.G.

    2015-09-01

    Full Text Available The article represents the results of study of a unique composite horse trapping and breast belt, found by expedition of S.I. Rudenko in the 5th Pazyryk kurgan (Mountain Altai, mid. 3rd century BC, and initially attributed as Iranian. The research has been aimed at definition the place and time of creation of three fragmented ornamented textiles, which decorated the trapping and the belt; as well as their original usage and way of coming to the Altai. To achieve the goal the author carefully studied the structures of items under research. The one with purple ground and “tower’s” pattern, which covers the ends of felt foundation of the trapping, is woven with wool and linen Z-spun threads, in warp sharing “kilim” technique, “dove tail” variant. The cloth is identified as Syrian, supposedly the time of reign of Darius I. Two other ones, with “lion procession” pattern (breast belt and “priestess and maidservant in front of an incense burner” (framing of panels was also made from wool and linen, although of different quality and S-spinning, in slit-kilim technique. Both are identified as Egyptian, and dated (most probably to the XXVII (Persian dynasty period. Comparison with representations of similar in decor textiles from synchronous in time monuments, and study of historic data on textile industry of the Achaemenid Empire made it possible to suggest, that “purple kilim” and “lion procession” belt made parts of ceremonial dress of Achaemenid nobility. The cloak could be brought to the Altai by one of the “Scythians”, who got it as a reward when served in the army of Alexander the Great during his Asian campaign.

  17. Parental Break-Ups and Stress

    DEFF Research Database (Denmark)

    Dissing, Agnete S.; Dich, Nadya; Nybo Andersen, Anne-Marie

    2017-01-01

    Background: Parental break-up is wide spread, and the effects of parental break-up on children’s well-being are known. The evidence regarding child age at break-up and subsequent family arrangements is inconclusive. Aim: to estimate the effects of parental break-up on stress in pre-adolescent chi......Background: Parental break-up is wide spread, and the effects of parental break-up on children’s well-being are known. The evidence regarding child age at break-up and subsequent family arrangements is inconclusive. Aim: to estimate the effects of parental break-up on stress in pre......-adolescent children with a specific focus on age at break-up and post-breakup family arrangements. Methods: We used data from the Danish National Birth Cohort. Participants included 44 509 children followed from birth to age 11. Stress was self-reported by children at age 11, when the children also reported...... on parental break-up and post break-up family arrangements. Results: Twenty-one percent of the children had experienced a parental break-up at age 11, and those who had experienced parental break-up showed a higher risk of stress (OR:1.72, 95%CI:1.55;1.91) regardless of the child’s age at break-up. Children...

  18. A model of intrinsic symmetry breaking

    Energy Technology Data Exchange (ETDEWEB)

    Ge, Li [Research Center for Quantum Manipulation, Department of Physics, Fudan University, Shanghai 200433 (China); Li, Sheng [Department of Physics, Zhejiang Normal University, Zhejiang 310004 (China); George, Thomas F., E-mail: tfgeorge@umsl.edu [Office of the Chancellor and Center for Nanoscience, Department of Chemistry and Biochemistry, University of Missouri-St. Louis, St. Louis, MO 63121 (United States); Department of Physics and Astronomy, University of Missouri-St. Louis, St. Louis, MO 63121 (United States); Sun, Xin, E-mail: xin_sun@fudan.edu.cn [Research Center for Quantum Manipulation, Department of Physics, Fudan University, Shanghai 200433 (China)

    2013-11-01

    Different from the symmetry breaking associated with a phase transition, which occurs when the controlling parameter is manipulated across a critical point, the symmetry breaking presented in this Letter does not need parameter manipulation. Instead, the system itself suddenly undergoes symmetry breaking at a certain time during its evolution, which is intrinsic symmetry breaking. Through a polymer model, it is revealed that the origin of the intrinsic symmetry breaking is nonlinearity, which produces instability at the instance when the evolution crosses an inflexion point, where this instability breaks the original symmetry.

  19. Breaking Wave Characteristics and Breaking Wave Forces on Slender Cylinders

    OpenAIRE

    Chella, Mayilvahanan Alagan

    2016-01-01

    Offshore wind farms have become an increasingly important source of clean and renewable energy. Most recent offshore wind farms are deployed close to the coast in shallow waters. One of the major factors influencing the initial investment of this technology is the design of the substructure and foundation. The physical processes associated with the non-linear shallow water hydrodynamics are rather complex since the wave motion is strongly influenced by the seabed. Breaking wave...

  20. 高校入学仪式教育探析%Analysis on the Education of University Matriculation Ceremony

    Institute of Scientific and Technical Information of China (English)

    黄丹丹

    2014-01-01

    高校入学仪式教育集文化教育、思想教育、管理教育于一体,是学生面对大学生活这一新情境的继续社会化过程。入学仪式具有重要的文化人类学意义,应以宣传校园文化,传承大学精神为主题;以全员育人,体现学生的主体地位为理念;以营造氛围,实现系列化教育为要求;以贴近学生实际,体现时代性为目标。高校应充分挖掘入学仪式的育人资源,有效提高入学教育的针对性、实效性、吸引力和感染力。%The education of university matriculation ceremony, as an integration of cultural education, ideological education and management education, is a process for students' further social-ization in university life. The matriculation ceremony is of great significance of cultural anthropology. The publicity of campus culture and the highlighting of university spirit should be the theme. Students' dominant role should be expressed through the whole education. The requirement of serial education should be achieved through atmosphere establishment. The goal of temporal spirit should be reflected through keeping pace with students' practical situation. The education resources of matriculation cer-emony should be fully developed, and its target, effectiveness and appeal should also be improved.

  1. El protocolo y el ceremonial en la sociedad de la comunicación y la imagen

    OpenAIRE

    Panizo Alonso, Julio

    2005-01-01

    Es innegable, que hoy las labores de los profesionales de protocolo de ceremonial se ven envueltos en entorno diferente al que se producía hace no muchos años que ha hecho incluso que el sentido de la profesión sería visto entredicho. La sociedad actual en la que nos desenvolvemos esta fuertemente influida por la comunicación y la imagen. Esta influencia se ha filtrado poco a poco en la forma la que las organizaciones se plantean su presencia exterior e interior. El mundo...

  2. BAYÇİÇEK CEREMONY IN NEVRUZ / NEVRUZDA BAYÇİÇEK MERASİMİ

    Directory of Open Access Journals (Sweden)

    Assoc. Prof. Dr. Cabbar İŞANKUL

    2007-05-01

    Full Text Available Nevruz has been celebrated since centuries with the characteristics carryingthe marks of Turkish culture and has got a big importance since Nevruz has became acommon cultural connection within Turkish tribes. Turkish nations celebrate this bigbairam with diverse ceremonies. Among Ozbek Turks, Nevruz has been celebrated inan enthusiastic fashion by “bayçiçek ceremony”, which has been about to be forgottenin present-day. In that sense, in this paper we will mention bayçiçek poetries andceremonies, which have an important culturel value.

  3. Quantum phase transitions about parity breaking in matrix product systems%Quantum phase transitions about parity breaking in matrix product systems

    Institute of Scientific and Technical Information of China (English)

    ZHU Jing-Min

    2011-01-01

    According to our scheme to construct quantum phase transitions (QPTs) in spin chain systems with matrix product ground states, we first successfully combine matrix product state (MPS) QPTs with spontaneous symmetry breaking. For a concrete model, we take

  4. Effective photon mass by Super and Lorentz symmetry breaking

    Science.gov (United States)

    Bonetti, Luca; dos Santos Filho, Luís R.; Helayël-Neto, José A.; Spallicci, Alessandro D. A. M.

    2017-01-01

    In the context of Standard Model Extensions (SMEs), we analyse four general classes of Super Symmetry (SuSy) and Lorentz Symmetry (LoSy) breaking, leading to observable imprints at our energy scales. The photon dispersion relations show a non-Maxwellian behaviour for the CPT (Charge-Parity-Time reversal symmetry) odd and even sectors. The group velocities exhibit also a directional dependence with respect to the breaking background vector (odd CPT) or tensor (even CPT). In the former sector, the group velocity may decay following an inverse squared frequency behaviour. Thus, we extract a massive Carroll-Field-Jackiw photon term in the Lagrangian and show that the effective mass is proportional to the breaking vector and moderately dependent on the direction of observation. The breaking vector absolute value is estimated by ground measurements and leads to a photon mass upper limit of 10-19 eV or 2 ×10-55 kg, and thereby to a potentially measurable delay at low radio frequencies.

  5. Effective photon mass by Super and Lorentz symmetry breaking

    Directory of Open Access Journals (Sweden)

    Luca Bonetti

    2017-01-01

    Full Text Available In the context of Standard Model Extensions (SMEs, we analyse four general classes of Super Symmetry (SuSy and Lorentz Symmetry (LoSy breaking, leading to observable imprints at our energy scales. The photon dispersion relations show a non-Maxwellian behaviour for the CPT (Charge-Parity-Time reversal symmetry odd and even sectors. The group velocities exhibit also a directional dependence with respect to the breaking background vector (odd CPT or tensor (even CPT. In the former sector, the group velocity may decay following an inverse squared frequency behaviour. Thus, we extract a massive Carroll–Field–Jackiw photon term in the Lagrangian and show that the effective mass is proportional to the breaking vector and moderately dependent on the direction of observation. The breaking vector absolute value is estimated by ground measurements and leads to a photon mass upper limit of 10−19 eV or 2×10−55 kg, and thereby to a potentially measurable delay at low radio frequencies.

  6. Breaking GSM with rainbow Tables

    CERN Document Server

    Meyer, Steven

    2011-01-01

    Since 1998 the GSM security has been academically broken but no real attack has ever been done until in 2008 when two engineers of Pico Computing (FPGA manufacture) revealed that they could break the GSM encryption in 30 seconds with 200'000$ hardware and precomputed rainbow tables. Since then the hardware was either available for rich people only or was confiscated by government agencies. So Chris Paget and Karsten Nohl decided to react and do the same thing but in a distributed open source form (on torrent). This way everybody could "enjoy" breaking GSM security and operators will be forced to upgrade the GSM protocol that is being used by more than 4 billion users and that is more than 20 years old.

  7. On Anomaly Mediated SUSY Breaking

    CERN Document Server

    de Alwis, S P

    2008-01-01

    A discrepancy between the Anomaly Mediated Supersymmetry Breaking (AMSB) gaugino mass calculated from the work of Kaplunovsky and Louis (hep-th/9402005) (KL) and other calculations in the literature is explained, and it is argued that the KL expression is the correct one relevant to the Wilsonian action. Furthermore it is argued that the AMSB contribution to the squark and slepton masses should be replaced by the contribution pointed out by Dine and Seiberg (DS) which has nothing to do with Weyl anomalies. This is not in general equivalent to the AMSB expression, and it is shown that there are models in which the usual AMSB expression would vanish but the DS one is non-zero. In fact the latter has aspects of both AMSB and gauge mediated SUSY breaking. In particular like the latter, it gives positive squared masses for sleptons.

  8. Renormalizable theories with symmetry breaking

    CERN Document Server

    Becchi, Carlo M

    2016-01-01

    The description of symmetry breaking proposed by K. Symanzik within the framework of renormalizable theories is generalized from the geometrical point of view. For an arbitrary compact Lie group, a soft breaking of arbitrary covariance, and an arbitrary field multiplet, the expected integrated Ward identities are shown to hold to all orders of renormalized perturbation theory provided the Lagrangian is suitably chosen. The corresponding local Ward identity which provides the Lagrangian version of current algebra through the coupling to an external, classical, Yang-Mills field, is then proved to hold up to the classical Adler-Bardeen anomaly whose general form is written down. The BPHZ renormalization scheme is used throughout in such a way that the algebraic structure analyzed in the present context may serve as an introduction to the study of fully quantized gauge theories.

  9. Literary Careers: Breaks and Stalls

    OpenAIRE

    Crozier, W. Ray

    2001-01-01

    In his article, "Literary Careers: Breaks and Stalls," W. Ray Crozier argues that biographical evidence points to considerable individual variation in writers' output over the life span even when allowance is made for longevity and length of writing career. This issue has been neglected by psychological accounts of creativity. Crozier outlines a theoretical framework for understanding variation in terms of an "artistic career." This is conceptualised as a sequence of projects, the success of ...

  10. Explaining quantum spontaneous symmetry breaking

    Science.gov (United States)

    Liu, Chuang; Emch, Gérard G.

    Two accounts of quantum symmetry breaking (SSB) in the algebraic approach are compared: the representational and the decompositional account. The latter account is argued to be superior for understanding quantum SSB. Two exactly solvable models are given as applications of our account: the Weiss-Heisenberg model for ferromagnetism and the BCS model for superconductivity. Finally, the decompositional account is shown to be more conducive to the causal explanation of quantum SSB.

  11. Breaking through the tranfer tunnel

    CERN Multimedia

    Laurent Guiraud

    2001-01-01

    This image shows the tunnel boring machine breaking through the transfer tunnel into the LHC tunnel. Proton beams will be transferred from the SPS pre-accelerator to the LHC at 450 GeV through two specially constructed transfer tunnels. From left to right: LHC Project Director, Lyn Evans; CERN Director-General (at the time), Luciano Maiani, and Director for Accelerators, Kurt Hubner.

  12. Models of electroweak symmetry breaking

    CERN Document Server

    Pomarol, Alex

    2015-01-01

    This chapter present models of electroweak symmetry breaking arising from strongly interacting sectors, including both Higgsless models and mechanisms involving a composite Higgs. These scenarios have also been investigated in the framework of five-dimensional warped models that, according to the AdS/CFT correspondence, have a four-dimensional holographic interpretation in terms of strongly coupled field theories. We explore the implications of these models at the LHC.

  13. Fision: Nucleon pair breaking before scission

    OpenAIRE

    Montoya, Modesto

    1984-01-01

    In order to explain the odd-even effect observed in low energy fission fragment distributions it has been recently required a double mechanism of nucleon pair breaking: before scission (early pair breaking) and at scission (late pair breaking), respectively. In the present work we show that, using the same formulae but considering only the early pair breaking mechanism, one can reproduce fairly well all the available experimental data on the odd-even effects.

  14. Mirrors Depicted in the Wedding Ceremonies of Dunhuang Wall Paintings%敦煌壁画婚礼图中的镜

    Institute of Scientific and Technical Information of China (English)

    祁晓庆

    2015-01-01

    Many images of mirrors have been found in the wedding ceremonies of the wall paintings in Dunhuang caves. These mirrors were common objects used in local wedding ceremonies as talismans or holy items, and were used during ceremonies for brides and grooms to worship. Mirrors were also symbols of the spiritual union of marriage and the auspicious wishes granted to newly married couples.%敦煌石窟壁画婚礼图中出现了多幅镜子图像。这些镜子是当地婚礼仪俗中常用之物,具有辟邪的功用,也被作为神圣之物,供新娘新郎在婚礼仪式中加以展拜。镜子还象征着夫妇同心,表达了对新人的美好祝愿。

  15. Dynamic breaking of a single gold bond

    DEFF Research Database (Denmark)

    Pobelov, Ilya V.; Lauritzen, Kasper Primdal; Yoshida, Koji

    2017-01-01

    . Conversely, if the force is loaded rapidly it is more likely that the maximum breaking force is measured. Paradoxically, no clear differences in breaking force were observed in experiments on gold nanowires, despite being conducted under very different conditions. Here we explore the breaking behaviour...

  16. Single photon induced symmetry breaking of H2 dissociation

    Energy Technology Data Exchange (ETDEWEB)

    Martin, F.; Fernandez, J.; Havermeier, T.; Foucar, L.; Weber, Th; Kreidi, K.; Schoffler, M.; Schmidt, L.; Jahnke, T.; Landers, A.L.; Jagutzki, O.; Czasch, A.; Benis, E.; Osipov, T.; Belkacem, A.; Prior,M.H.; Schmidt-Bocking, H.; Cocke, C.L.; Dorner, R.

    2006-12-06

    H{sub 2}, the smallest and most abundant molecule in the universe, has a perfectly symmetric ground state. What does it take to break this symmetry? Here we show that the inversion symmetry can be broken by absorption of a linearly polarized photon, which itself has inversion symmetry. In particular, the emission of a photoelectron with subsequent dissociation of the remaining H{sub 2}{sup +} fragment shows no symmetry with respect to the ionic H+ and neutral H atomic fragments. This result is the consequence of the entanglement between symmetric and antisymmetric H{sub 2}{sup +} states resulting from autoionization. The mechanisms behind this symmetry breaking are general for all molecules.

  17. On the Translating Styles of Two Chinese Versions in Break, Break, Break%评Break,Break,Break两种译文的翻译风格

    Institute of Scientific and Technical Information of China (English)

    许颖红

    2011-01-01

    美国著名翻译家提莫志克指出,翻译就其本质而言只能是一部分翻译,忠实地再现原文所有的信息根本不可能,诗歌的准确翻译就更不容易了。对丁尼生的一首短诗的两种译文进行评析,希望通过分析能对此诗有更深刻的理解。%Tymocko, famous American translator, points out that translation is actually only the translation of part of the language because it is impossible to reproduce all the messages. It is even more difiqeuh to translate a poem. For profound understanding, this paper contrasts two Chinese versions of Break, Break, Break, a short poem of Tennyson.

  18. Acoustics of native-American ceremonial sites in prehispanic America (Acustica en los espacios escenios rituales prehispanicos)

    Science.gov (United States)

    Martinez, Maria Isabel

    2003-11-01

    This thesis establishes a methodology that incorporates the latest procedures used in architectural acoustics for the study of open spaces of this general type, and definitions are given for the acoustic variables of interest. The ``Juego de Pelota'' (ball game) sites are the only ceremonial sites built specifically for the performance of a fertility ritual, and are ideal for the study of prehispanic architectural topographies. Analysis of the acoustic properties of such sites revealed that the topographical characteristics of the elevation profiles of these architectural structures determine the acoustic behavior of these spaces. Such profiles are classified into three basic types: (i) inclined profile, (ii) terraced profile, and (iii) mixed profile. The terraced profiles are the most efficient, and the mixed profiles are the least efficient, in regard to acoustics. The consideration of the acoustic behavior of architectural structures intended for the ``Ball Game,'' as the designs evolved over time, leads to the conclusion that acoustical sensations that contributed effectively to the characteristic mystical atmosphere of the ceremonial rituals were characteristic only of those sites constructed in the ``classical'' period. Thesis advisors: Jaime Navarro and Juan J. Sendra Copies of this thesis written in Spanish may be obtained by contacting the advisor, Jaime Navarro, E.T.S. de Arquitectura de Sevilla, Dpto. de Construcciones Arquitectonicas I, Av. Reina Mercedes, 2, 41012 Sevilla, Spain. E-mail address: jnavarro@us.es

  19. 'Grounded' Politics

    DEFF Research Database (Denmark)

    Schmidt, Garbi

    2012-01-01

    play within one particular neighbourhood: Nørrebro in the Danish capital, Copenhagen. The article introduces the concept of grounded politics to analyse how groups of Muslim immigrants in Nørrebro use the space, relationships and history of the neighbourhood for identity political statements....... The article further describes how national political debates over the Muslim presence in Denmark affect identity political manifestations within Nørrebro. By using Duncan Bell’s concept of mythscape (Bell, 2003), the article shows how some political actors idealize Nørrebro’s past to contest the present...

  20. 炼金术神话与入会仪式%Alchemical Myths and Initiation Ceremony

    Institute of Scientific and Technical Information of China (English)

    米尔恰·伊利亚德

    2014-01-01

    Alchemy is not j ust the philosophy of material unity.There is some interdependence among mineral symbolism,metallurgy ceremony,the magic of fire and the belief that artificial alchemy can re-place the function of natural law.Western alchemists proj ected the ritual scene in the mystical religion onto the mineral,the symbol of which was integrated into Christianity.Alchemists treat substance like believ-ers treat God in the ritual of mystical religion.The philosopher's stone achieves the transformation of the presence of substances through the four stages of black,white,yellow and red,which means the passion, death and regeneration to another existence form of the mineral.Western alchemists'meaning and ultimate purpose is the transformation of human by making the minerals come back to its original state,sympathy is evoked between the change of substance and the alchemist's heart.Along with the process of alchemy, alchemists purify and awaken themselves to achieve some kind of ritual experience and self-training,to refine their mental,physical as well as moral and spiritual experience.%炼金术不仅仅是物质统一性的哲学原理,在矿物象征意义、冶金仪式、火的魔力和坚信人工炼金可以替代自然规律的功能之间,存在某种依存关系。西方炼金术士将神秘宗教中的仪式景象投射到矿物上,将其象征符号融入基督教教义。炼金术士对待物质,犹如信徒在神秘宗教仪式上对待上帝一般。哲人石经过呈现黑色、白色、黄色和红色四个阶段,经历矿物的受难、死亡和再生成另一种存在方式,来实现物质的转化。西方炼金术士通过让矿物回归原始状态,其意义和最终目的是人的转化,在物质的变化和他内心之间唤起某种共鸣。伴随着炼金术过程的进行,炼金术士净化唤醒自己,实现了某种仪式性体验和自身修炼,提炼了自己的心理、生理以及道德和精神体验。

  1. Measurement As Spontaneous Symmetry Breaking, Non-locality and Non-Boolean Holism

    CERN Document Server

    Ghose, Partha

    2010-01-01

    It is shown that having degenerate ground states over the domain of the wavefunction of a system is a sufficient condition for a quantum system to act as a measuring apparatus for the system. Measurements are then instances of spontaneous symmetry breaking to one of these ground states, induced by environmental perturbations. Together with non-Boolean holism this constitutes an optimal formulation of quantum mechanics that does not imply non-locality.

  2. History of electroweak symmetry breaking

    CERN Document Server

    Kibble, T W B

    2015-01-01

    In this talk, I recall the history of the development of the unified electroweak theory, incorporating the symmetry-breaking Higgs mechanism, as I saw it from my standpoint as a member of Abdus Salam's group at Imperial College. I start by describing the state of physics in the years after the Second World War, explain how the goal of a unified gauge theory of weak and electromagnetic interactions emerged, the obstacles encountered, in particular the Goldstone theorem, and how they were overcome, followed by a brief account of more recent history, culminating in the historic discovery of the Higgs boson in 2012.

  3. Improved single sector supersymmetry breaking

    Energy Technology Data Exchange (ETDEWEB)

    Luty, Markus A.; Terning, John

    1998-12-09

    Building on recent work by N. Arkani-Hamed and the present authors, we construct realistic models that break supersymmetry dynamically and give rise to composite quarks and leptons, all in a single strongly-coupled sector. The most important improvement compared to earlier models is that the second-generation composite states correspond to dimension-2 ''meson'' operators in the ultraviolet. This leads to a higher scale for flavor physics, and gives a completely natural suppression of flavor-changing neutral currents. We also construct models in which the hierarchy of Yukawa couplings is explained by the dimensionality of composite states. These models provide an interesting and viable alternative to gravity- and gauge-mediated models. The generic signatures are unification of scalar masses with different quantum numbers at the compositeness scale, and lighter gaugino, Higgsino, and third-generation squark and slepton masses. We also analyze large classes of models that give rise to both compositeness and supersymmetry breaking, based on gauge theories with confining, fixed-point, or free-magnetic dynamics.

  4. How often precipitation records break?

    Science.gov (United States)

    Papalexiou, Simon Michael; Oikonomou, Maria; Floutsakou, Athina; Bessas, Nikolaos; Mamassis, Nikos

    2016-04-01

    How often precipitation records break? Are there any factors that determine the average time needed for the next maximum to occur? In order to investigate these simple questions we use several hundreds of daily precipitation records (more than 100 years long each) and we study the time intervals between each successive maximum precipitation value. We investigate if the record breaking time interval is related (a) to the autocorrelation structure, (b) to probability dry, and (c) to the tail of the marginal distribution. For the last, we first, evaluate which type of tail is better fitted by choosing among three general types of tails corresponding to the distributions Pareto, Lognormal and Weibull; and second, we assess the heaviness of the tail based on the estimated shape parameter. The performance of each tail is evaluated in terms of return period values, i.e., we compare the empirical return periods of precipitation values above a threshold with the predicted ones by each of the three types of fitted tails.

  5. Introduction to Electroweak Symmetry Breaking

    Energy Technology Data Exchange (ETDEWEB)

    Dawson,S.

    2008-10-02

    The Standard Model (SM) is the backbone of elementary particle physics-not only does it provide a consistent framework for studying the interactions of quark and leptons, but it also gives predictions which have been extensively tested experimentally. In these notes, I review the electroweak sector of the Standard Model, discuss the calculation of electroweak radiative corrections to observables, and summarize the status of SM Higgs boson searches. Despite the impressive experimental successes, however, the electroweak theory is not completely satisfactory and the mechanism of electroweak symmetry breaking is untested. I will discuss the logic behind the oft-repeated statement: 'There must be new physics at the TeV scale'. These lectures reflect my strongly held belief that upcoming results from the LHC will fundamentally change our understanding of electroweak symmetry breaking. In these lectures, I review the status of the electroweak sector of the Standard Model, with an emphasis on the importance of radiative corrections and searches for the Standard Model Higgs boson. A discussion of the special role of the TeV energy scale in electroweak physics is included.

  6. Chiral symmetry breaking and monopoles

    CERN Document Server

    Di Giacomo, Adriano; Pucci, Fabrizio

    2015-01-01

    To understand the relation between the chiral symmetry breaking and monopoles, the chiral condensate which is the order parameter of the chiral symmetry breaking is calculated in the $\\overline{\\mbox{MS}}$ scheme at 2 [GeV]. First, we add one pair of monopoles, varying the monopole charges $m_{c}$ from zero to four, to SU(3) quenched configurations by a monopole creation operator. The low-lying eigenvalues of the Overlap Dirac operator are computed from the gauge links of the normal configurations and the configurations with additional monopoles. Next, we compare the distributions of the nearest-neighbor spacing of the low-lying eigenvalues with the prediction of the random matrix theory. The low-lying eigenvalues not depending on the scale parameter $\\Sigma$ are compared to the prediction of the random matrix theory. The results show the consistency with the random matrix theory. Thus, the additional monopoles do not affect the low-lying eigenvalues. Moreover, we discover that the additional monopoles increa...

  7. Boundary breaking for interdisciplinary learning

    Directory of Open Access Journals (Sweden)

    Adi Kidron

    2015-10-01

    Full Text Available The purpose of this work is to contribute to the body of knowledge on processesby which students develop interdisciplinary understanding of contents, as well as to suggest technology-enhanced means for supporting them in these processes in the context of higher education. In doing so, we suggest a rethinking of three traditional practices that tend to characterise typical higher education instruction: (1 compartmentalisation of disciplines; (2 traditional pedagogy; and (3 traditional hierarchies based on levels of expertise. Our high-level conjecture was that meaningful dialogue with peers and experts supports both the deepening of ideas in one knowledge domain and the formation of connections between ideas from several domains, both of which are required for the development of interdisciplinary understanding. We developed the Boundary Breaking for Interdisciplinary Learning (BBIL model, which harnesses technology to break boundaries between disciplines, learners and organisational levels of hierarchy. Findings indicate that 36 undergraduate students who participated in an interdisciplinary online course that implemented the BBIL model have significantly improved their interdisciplinary understanding of the course contents. This study illustrates how innovative use of available, free and low-cost technology can produce a ‘positive disruption’ in higher education instruction.

  8. SPITZER OBSERVATIONS OF OGLE-2015-BLG-1212 REVEAL A NEW PATH TOWARD BREAKING STRONG MICROLENS DEGENERACIES

    DEFF Research Database (Denmark)

    Bozza, V.; Shvartzvald, Y.; Udalski, A.

    2016-01-01

    Spitzer microlensing parallax observations of OGLE-2015-BLG-1212 decisively break a degeneracy between planetary and binary solutions that is somewhat ambiguous when only ground-based data are considered. Only eight viable models survive out of an initial set of 32 local minima in the parameter s...

  9. Evidence for discrete chiral symmetry breaking in $N = 1$ supersymmetric Yang-Mills theory

    CERN Document Server

    Kirchner, R; Montvay, István; Spanderen, K; Westphalen, J

    1999-01-01

    In a numerical Monte Carlo simulation of SU(2) Yang-Mills theory with dynamical gauginos we find evidence for two degenerate ground states at the supersymmetry point corresponding to zero gaugino mass. This is consistent with the expected pattern of spontaneous discrete chiral symmetry breaking $Z_4 \\to Z_2$ caused by gaugino condensation.

  10. Evidence for discrete chiral symmetry breaking in N=1 supersymmetric Yang-Mills theory

    Science.gov (United States)

    Desy-Münster Collaboration; Kirchner, R.; Montvay, I.; Westphalen, J.; Luckmann, S.; Spanderen, K.

    1999-01-01

    In a numerical Monte Carlo simulation of SU(2) Yang-Mills theory with dynamical gauginos we find evidence for two degenerate ground states at the supersymmetry point corresponding to zero gaugino mass. This is consistent with the expected pattern of spontaneous discrete chiral symmetry breaking Z4-->Z2 caused by gaugino condensation.

  11. Making a living between crises and ceremonies in Tana Toraja: The practice of everyday life of a South Sulawesi Highland Community in Indonesia

    NARCIS (Netherlands)

    Jong, E.B.P. de

    2013-01-01

    The practice of everyday life in Tana Toraja (South Sulawesi, Indonesia) is structured by a series of public events, of which funerals are the most important. Even after Indonesia was hit by an economic crisis in the late 1990s, thousands of extravagant funeral ceremonies, requiring huge expenditure

  12. The public lecture on 30 years’reform and opening up in China’s printing,printing equipment and material industries was held ceremoniously

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    The public lecture on 30 years’reform and opening up in China’s printing, printing equipment and material industries was held ceremoniously on November 29, 2008 in Beijing Friendship Hotel.The lecture is sponsored by Printing and Printing Equipment Industries Association of China,Guangdong Printing and Replicating

  13. CERN 50th Anniversary : CERN's 50th anniversary celebrations drew to a close with a ceremony at Geneva University's Institut de Physique.

    CERN Multimedia

    Maximilien Brice

    2004-01-01

    For it was here, on the banks of the River Arve, that CERN's first staff members, from the PS Magnets Group, came to work in October 1953. The ceremony was followed by drinks and an exhibition of the activities of the School of Physics.

  14. Legless Singer Held Wedding Ceremony on the Summit of Mount Tai%无腿歌手岱顶圆梦

    Institute of Scientific and Technical Information of China (English)

    陈文进(撰文、摄影)

    2012-01-01

    2012年8月23日是中国传统的七夕节,山东临沂无腿歌手陈州登上泰山之巅,和妻子在这里举行了一场特别的婚礼,完成自己对妻子爱的诺言,圆了自己多年的梦。陈州1983年出生于山东临沂苍山县,6岁时父母离异,8岁流浪四方,13岁因为车祸失去双腿。%August 23, 2012 was the Chinese Valentine's Day. Chen Zhou, a .legless singer from Linyi, ShandongProvince, climbed up to the summit Mount Tai, where he held a special ceremony with his wife, which fulfilled the promise he made to her several years ago.

  15. An Examination of Common Worship and Ceremonies among the Abrahamic Faiths: Implication for Religious Tolerance in Nigeria

    Directory of Open Access Journals (Sweden)

    Omomia, O. Austin

    2014-07-01

    Full Text Available Abrahamic faiths refer to the three most popular religions that traced their origin to Abraham. These religions are Judaism (the earliest of the three, Christianity and Islam (Islam is commonly adjudged as the most recent.This paper examined the common worship, customs and other religious ceremonies prevalent among the Abrahamic faiths. It also identified the common areas of agreement between the Abrahamic faiths with regards to the common religious related customs. It is on this strength that the paper argued that the Abrahamic faiths should emphasize on areas of unity rather than widen the gulf of disagreement. The paper employed the historical and sociological methods of investigation. It is recommended that the Abrahamic faiths should explore areas of unity in order to strengthen the cord of tolerance and peace in the world in general and Nigeria in particular.

  16. Electroweak symmetry breaking via QCD.

    Science.gov (United States)

    Kubo, Jisuke; Lim, Kher Sham; Lindner, Manfred

    2014-08-29

    We propose a new mechanism to generate the electroweak scale within the framework of QCD, which is extended to include conformally invariant scalar degrees of freedom belonging to a larger irreducible representation of SU(3)c. The electroweak symmetry breaking is triggered dynamically via the Higgs portal by the condensation of the colored scalar field around 1 TeV. The mass of the colored boson is restricted to be 350  GeV≲mS≲3  TeV, with the upper bound obtained from perturbative renormalization group evolution. This implies that the colored boson can be produced at the LHC. If the colored boson is electrically charged, the branching fraction of the Higgs boson decaying into two photons can slightly increase, and moreover, it can be produced at future linear colliders. Our idea of nonperturbative electroweak scale generation can serve as a new starting point for more realistic model building in solving the hierarchy problem.

  17. Dynamical centrosymmetry breaking in graphene

    CERN Document Server

    Carvalho, David N; Biancalana, Fabio

    2016-01-01

    We discover an unusual phenomenon that occurs when a graphene monolayer is illuminated by a short and intense pulse at normal incidence. Due to the pulse-induced oscillations of the Dirac cones, a dynamical breaking of the layer's centrosymmetry takes place, leading to the generation of second harmonic waves. We prove that this result can only be found by using the full Dirac equation and show that the widely used semiconductor Bloch equations fail to reproduce this and some other important physics of graphene. Our results open new windows in the understanding of nonlinear light-matter interactions in a wide variety of new 2D materials with a gapped or ungapped Dirac-like dispersion.

  18. Gravity with background fields and diffeomorphism breaking

    CERN Document Server

    Bluhm, Robert

    2016-01-01

    Effective gravitational field theories with background fields break local Lorentz symmetry and diffeomorphism invariance. Examples include Chern-Simons gravity, massive gravity, and the Standard-Model Extension (SME). The physical properties and behavior of these theories depend greatly on whether the spacetime symmetry breaking is explicit or spontaneous. With explicit breaking, the background fields are fixed and nondynamical, and the resulting theories are fundamentally different from Einstein's General Relativity (GR). However, when the symmetry breaking is spontaneous, the background fields are dynamical in origin, and many of the usual features of Einstein's GR still apply.

  19. Breaking the Nordic Defense Deadlock

    Science.gov (United States)

    2015-02-01

    Technical Research Centre ( VTT ), where he eventually became Chief Scientist. In 2005, he moved to the Finnish Ministry of Foreign Affairs Policy...armed neutrality became the trademark of neutral Sweden. The military capability of Sweden and its domestic military technology were respected...of future ground forces will consist of small units, which rely on technology and mobility—Intelligence, Surveillance, Target Acquisition and

  20. Symmetry, Symmetry Breaking and Topology

    Directory of Open Access Journals (Sweden)

    Siddhartha Sen

    2010-07-01

    Full Text Available The ground state of a system with symmetry can be described by a group G. This symmetry group G can be discrete or continuous. Thus for a crystal G is a finite group while for the vacuum state of a grand unified theory G is a continuous Lie group. The ground state symmetry described by G can change spontaneously from G to one of its subgroups H as the external parameters of the system are modified. Such a macroscopic change of the ground state symmetry of a system from G to H correspond to a “phase transition”. Such phase transitions have been extensively studied within a framework due to Landau. A vast range of systems can be described using Landau’s approach, however there are also systems where the framework does not work. Recently there has been growing interest in looking at such non-Landau type of phase transitions. For instance there are several “quantum phase transitions” that are not of the Landau type. In this short review we first describe a refined version of Landau’s approach in which topological ideas are used together with group theory. The combined use of group theory and topological arguments allows us to determine selection rule which forbid transitions from G to certain of its subgroups. We end by making a few brief remarks about non-Landau type of phase transition.

  1. On breaks of the Indian monsoon

    Indian Academy of Sciences (India)

    Sulochana Gadgil; P V Joseph

    2003-12-01

    For over a century, the term break has been used for spells in which the rainfall over the Indian monsoon zone is interrupted. The phenomenon of `break monsoon' is of great interest because long intense breaks are often associated with poor monsoon seasons. Such breaks have distinct circulation characteristics (heat trough type circulation) and have a large impact on rainfed agriculture.Although interruption of the monsoon rainfall is considered to be the most important feature of the break monsoon, traditionally breaks have been identified on the basis of the surface pressure and wind patterns over the Indian region. We have defined breaks (and active spells) on the basis of rainfall over the monsoon zone. The rainfall criteria are chosen so as to ensure a large overlap with the traditional breaks documented by Ramamurthy (1969) and De et al (1998). We have identified these rainbreaks for 1901-89. We have also identified active spells on the basis of rainfall over the Indian monsoon zone. We have shown that the all-India summer monsoon rainfall is significantly negatively correlated with the number of rainbreak days (correlation coefficient −0.56) and significantly positively correlated with the number of active days (correlation coefficient 0.47).Thus the interannual variation of the all-India summer monsoon rainfall is shown to be related to the number of days of rainbreaks and active spells identified here. There have been several studies of breaks (and also active spells in several cases) identified on the basis of different criteria over regions differing in spatial scales (e.g., Webster et al 1998; Krishnan et al 2000; Goswami and Mohan 2000; and Annamalai and Slingo 2001). We find that there is considerable overlap between the rainbreaks we have identified and breaks based on the traditional definition. There is some overlap with the breaks identified by Krishnan et al (2000) but little overlap with breaks identified by Webster et al (1998). Further

  2. 附远厚别 防止乱族 强调成妇——从《仪礼·士昏礼》看先秦社会婚姻观念%Ceremonial Emphasis on Adult Women to Prevent Family Disorder——The View of Marriage in Pre-Qin Society in Terms of Ceremony and Propriety:Ceremonial Procedure of Wedding

    Institute of Scientific and Technical Information of China (English)

    焦杰

    2011-01-01

    《仪礼·士昏礼》所载婚礼仪式对我国传统婚姻习俗有着重大影响,它不仅影响了我国传统的婚姻习俗,而且也影响了我国的传统婚姻观念与妇女思想。在《仪礼·士昏礼》的文本中,婚姻是事关家族兴旺发达的大事,女性作为构建合"两姓之好"的使者,必须履行许多责任,她的身体必须被禁锢以确保不会给夫家带来乱族的灾难,她在"归家"以后必须做到"妇顺"以确保"两姓之好"的持续发展。虽然婚姻是通过男女两性的结合来完成的,但是婚礼仪式及其象征意义并没有体现出对男性的要求与规范,男性只是女性归家的媒介,维护婚姻稳定、家庭和谐的责任都落实在女性身上。%The ceremony of wedding recorded in Ceremony and Propriety: Ceremonial Procedure of Wedding had a great influence on traditional marriage customs in our country.This affected not only traditional marriage customs themselves but also traditional marital conception and thought of women in our country.According to Ceremony and Propriety: Ceremonial Procedure of Wedding,marriage was a great issue concerning the family's prosperity.A messenger to establish "happiness between two sexes",the woman ought to carry many responsibilities: her body to be enveloped to surely prevent bringing about any disorder to the man's family,and she to be "obedient to her man" after "being married" to guarantee sustenance of "happiness between two sexes".Although marriage was realized through a combination between man and woman,no man's requirements and criteria were expressed in the ceremony of marriage and its symbolic meaning.This was because the man acted only as a medium of the woman's marriage whereas it was the woman who would carry the responsibility to preserve the stability of marriage and harmony of the family.

  3. Charge-symmetry-breaking nucleon form factors

    CERN Document Server

    Kubis, Bastian

    2009-01-01

    A quantitative understanding of charge-symmetry breaking is an increasingly important ingredient for the extraction of the nucleon's strange vector form factors. We review the theoretical understanding of the charge-symmetry-breaking form factors, both for single nucleons and for Helium-4.

  4. Dynamical gauge symmetry breaking on the lattice

    Energy Technology Data Exchange (ETDEWEB)

    Farakos, K.; Koutsoumbas, G.; Zoupanos, G. (National Research Centre for the Physical Sciences Democritos, Athens (Greece))

    1990-10-11

    We study, using lattice techniques, the dynamical symmetry breaking of a three-dimensional theory that mimics the electroweak sector of the standard model. We show that in the strong coupling limit of a QCD-like theory the fermion condensates which are produced induce dynamical symmetry breaking of the sector corresponding to the electroweak gauge group. (orig.).

  5. Breaking down silos and building teamwork.

    Science.gov (United States)

    Lunn, T

    1997-11-01

    The purpose of this article is to explain how successful companies break down old functional silos and build teamwork. It describes techniques that foster teamwork across functional departments within a company as well as methods that can be used to cut across company lines and break down barriers between organizations.

  6. Structural Break Tests Robust to Regression Misspecification

    NARCIS (Netherlands)

    Abi Morshed, Alaa; Andreou, E.; Boldea, Otilia

    2016-01-01

    Structural break tests developed in the literature for regression models are sensitive to model misspecification. We show - analytically and through simulations - that the sup Wald test for breaks in the conditional mean and variance of a time series process exhibits severe size distortions when the

  7. SU(3) breaking in hyperon beta decays

    Science.gov (United States)

    Roos, M.

    1990-08-01

    The symmetry breaking in the hyperon semi-leptonic decays is analyzed with the constraint the | us| is given by K e3. The mechanisms of symmetry breaking of Donoghue, Holstein and Klimt and the one-loop corrected vector form factors of Krause are compared with data.

  8. SU(3) breaking in hyperon beta decays

    Energy Technology Data Exchange (ETDEWEB)

    Roos, M. (Helsinki Univ. (Finland). Dept. of High Energy Physics)

    1990-08-23

    The symmetry breaking in the hyperon semi-leptonic decays is analyzed with the constraint that vertical strokeV{sub us}vertical stroke is given by K{sub e3}. The mechanism of symmetry breaking of Donoghue, Holstein and Klimt and the one-loop corrected vector form factors of Krause are compared with data. (orig.).

  9. Numerical study of airflow over breaking waves

    Science.gov (United States)

    Yang, Zixuan; Shen, Lian

    2016-11-01

    We present direct numerical simulation (DNS) results on airflow over breaking waves. Air and water are simulated as a coherent system. The initial condition for the simulation is a fully-developed turbulent airflow over strongly-forced steep waves. The airflow is driven by a shear stress at the top. The effects of the initial wave steepness and wave age are studied systematically. Because wave breaking is an unsteady process, we use ensemble averaging of a large number of runs to obtain turbulent statistics. Simulation results show that the airflow above does not see the wave trough during wave breaking. Vortex structures at different stages of wave breaking are analyzed based on a linear stochastic estimation method. It is found that the wave breaking alters the pattern of vortex structures.

  10. A laboratory study of breaking waves

    Directory of Open Access Journals (Sweden)

    Jaros³aw Têgowski

    2004-09-01

    Full Text Available This paper deals with some aspects of the wave-breaking phenomenon. The objectives were to study wave-breaking criteria, and the probability of whitecap coverage under fully controlled wave conditions. An additional task was to in vestigate the characteristic spectral features of the noise produced by breaking waves and the acoustic energy generated during wave breaking events. A controlled experiment was carried out in the Ocean Basin Laboratory at MARINTEK, Trondheim (Norway. Waves were generated by a computer-controlled multi-flap wave maker, which reproduced a realistic pattern of the sea surface for the prescribed spectra. Using wave staff recordings and photographic techniques, correlations between the breaking parameters and the radiated acoustic emissions were established.

  11. Research progress on dam-break floods

    KAUST Repository

    Wu, Jiansong

    2011-08-01

    Because of the catastrophic effects downstream of dam-break failure, more and more researchers around the world have been working on the study of dam-break flows to accurately forecast the downstream inundation mapping. With the rapid development of computer hardware and computing techniques, numerical study on dam-break flows has been a popular research subject. In the paper, the numerical methodologies used to solve the governing partial differential equations of dam-break flows are classified and summarized, and their characteristics and applications are discussed respectively. Furthermore, the fully-developed mathematical models developed in recent decades are reviewed, and also introduced the authors\\' on-going work. Finally, some possible future developments on modeling the dam-break flows and some solutions are presented and discussed. © 2011 IEEE.

  12. Big break for charge symmetry

    CERN Document Server

    Miller, G A

    2003-01-01

    Two new experiments have detected charge-symmetry breaking, the mechanism responsible for protons and neutrons having different masses. Symmetry is a crucial concept in the theories that describe the subatomic world because it has an intimate connection with the laws of conservation. The theory of the strong interaction between quarks - quantum chromodynamics - is approximately invariant under what is called charge symmetry. In other words, if we swap an up quark for a down quark, then the strong interaction will look almost the same. This symmetry is related to the concept of sup i sospin sup , and is not the same as charge conjugation (in which a particle is replaced by its antiparticle). Charge symmetry is broken by the competition between two different effects. The first is the small difference in mass between up and down quarks, which is about 200 times less than the mass of the proton. The second is their different electric charges. The up quark has a charge of +2/3 in units of the proton charge, while ...

  13. Breaking soliton equations and negative-order breaking soliton equations of typical and higher orders

    Indian Academy of Sciences (India)

    ABDUL-MAJID WAZWAZ

    2016-11-01

    We develop breaking soliton equations and negative-order breaking soliton equations of typical and higher orders. The recursion operator of the KdV equation is used to derive these models.We establish the distinctdispersion relation for each equation. We use the simplified Hirota’s method to obtain multiple soliton solutions for each developed breaking soliton equation. We also develop generalized dispersion relations for the typical breaking soliton equations and the generalized negative-order breaking soliton equations. The results provide useful information on the dynamics of the relevant nonlinear negative-order equations.

  14. Spontaneous versus explicit replica symmetry breaking in the theory of disordered systems

    Science.gov (United States)

    Mouhanna, D.; Tarjus, G.

    2010-05-01

    We investigate the relation between spontaneous and explicit replica symmetry breaking in the theory of disordered systems. On general ground, we prove the equivalence between the replicon operator associated with the stability of the replica-symmetric solution in the standard replica scheme and the operator signaling a breakdown of the solution with analytic field dependence in a scheme in which replica symmetry is explicitly broken by applied sources. This opens the possibility to study, via the recently developed functional renormalization group, unresolved questions related to spontaneous replica symmetry breaking and spin-glass behavior in finite-dimensional disordered systems.

  15. Constraining the $SU(2)_R$ breaking scale in naturally R-parity conserving supersymmetric models

    CERN Document Server

    Huitu, K; Puolamäki, K

    1997-01-01

    We obtain an upper bound on the right-handed breaking scale in naturally R-parity conserving general left-right supersymmetric models. This translates into an upper bound on the right-handed gauge boson mass, $m_{W_R}\\lsim M_{SUSY}$, where $M_{SUSY}$ is the scale of SUSY breaking. This bound is independent of any assumptions for the couplings of the model, and follows from $SU(3)_c$ and $U(1)_{em}$ gauge invariance of the ground state of the theory.

  16. Science Illiteracy: Breaking the Cycle

    Science.gov (United States)

    Lebofsky, L. A.; Lebofsky, N. R.

    2003-12-01

    At the University of Arizona, as at many state universities and colleges, the introductory science classes for non-science majors may be the only science classes that future K--8 teachers will take. The design of the UA's General Education program requires all future non-science certified teachers to take the General Education science classes. These classes are therefore an ideal venue for the training of the state's future teachers. Many students, often including future teachers, are ill-prepared for college, i.e., they lack basic science content knowledge, basic mathematics skills, and reading and writing skills. They also lack basic critical thinking skills and study skills. It is within this context that our future teachers are trained. How do we break the cycle of science illiteracy? There is no simple solution, and certainly not a one-size-fits-all panacea that complements every professor's style of instruction. However, there are several programs at the University of Arizona, and also principles that I apply in my own classes, that may be adaptable in other classrooms. Assessment of K--12 students' learning supports the use of inquiry-based science instruction. This approach can be incorporated in college classes. Modeling proven and productive teaching methods for the future teachers provides far more than ``just the facts,'' and all students gain from the inquiry approach. Providing authentic research opportunities employs an inquiry-based approach. Reading (outside the textbook) and writing provide feedback to students with poor writing and critical thinking skills. Using peer tutors and an instant messaging hot line gives experience to the tutors and offers "comfortable" assistance to students.

  17. Una liturgia de ruptura: el ceremonial de consagración y coronación de Agustín I

    OpenAIRE

    DAVID CARBAJAL LÓPEZ

    2011-01-01

    El 21 de julio de 1822 tuvo lugar la coronación del emperador Agustín de Iturbide, en una ceremonia original por su novedad y por el carácter constitucional del monarca. Insertada en la tradición hispánica por la historiografía reciente, la ceremonia rompía por sí misma con ella, pues el principal ceremonial de exaltación del monarca español había sido su entrada pública en la Corte, reproducida en América a través de la proclamación y paseo del Real Pendón. Además, el ceremonial retomó ampli...

  18. A Dialectic Study of the Structure and Basic Concepts of Traditional Chinese Law and an Analysis of the Relationship Between li (ceremony) and fa (law)

    Institute of Scientific and Technical Information of China (English)

    ZENG Xianyi; MA Xiaohong

    2006-01-01

    In the course of history,the meaning offa (a Chinese character with an approximate meaning of "law") has not been invariable,and its connotation in modem times has been enriched constantly,so as to incorporate many elements of ancient li (ceremony).If the modem concept of law,already changed and still changing,is to be used to mechanically compare and interpret traditional Chinese law,misunderstandings might arise.Actually,li and fa are indispensable components of traditional Chinese law,and the lack of necessary study of the li will prevent us from understanding and explaining the spirit of traditional Chinese law.In traditional Chinese law,"fa" usually refers to an institutional dimension,especially after Qin and Han dynasties,whereas li,especially li yi (moral basis for rites and ceremonies),is where the value and spirit of traditional Chinese law can be found.

  19. 23 March 2015 - Tree planting ceremony Chemin Auguer, by His Holiness the XIIth Gyalwang Drukpa and CERN Director-General, on the occasion of the event Connecting Worlds: Science Meets Buddhism Great Minds, Great Matters.

    CERN Multimedia

    Brice, Maximilien

    2015-01-01

    23 March 2015 - Tree planting ceremony Chemin Auguer, by His Holiness the XIIth Gyalwang Drukpa and CERN Director-General, on the occasion of the event Connecting Worlds: Science Meets Buddhism Great Minds, Great Matters.

  20. Particle production from symmetry breaking after inflation

    CERN Document Server

    García-Bellido, J; Garcia-Bellido, Juan; Morales, Ester Ruiz

    2002-01-01

    Recent studies suggest that the process of symmetry breaking after inflation typically occurs very fast, within a single oscillation of the symmetry-breaking field, due to the spinodal growth of its long-wave modes, otherwise known as `tachyonic preheating'. In this letter we show how this sudden transition from the false to the true vacuum can induce a significant production of particles, bosons and fermions, coupled to the symmetry-breaking field. We find that this new mechanism of particle production in the early Universe may have interesting consequences for the origin of dark matter and the generation of the observed baryon asymmetry through leptogenesis.

  1. Report of Break Out Group 1

    DEFF Research Database (Denmark)

    Alward, Randy; Carley, Kathleen M.; Madsen, Fredrik Huitfeldt

    2006-01-01

    To help understand a network and its ability to continue operating when under attack, the break out group discussed issues that need to be considered when presenting network vulnerability information to an analyst, manager or commander in effective support of that person's "observe, orient, decide......, action" (OODA) loop. The break out group discussed vulnerability presentation needs common across various application domains, particularly in support of network discovery and network analysis tasks in those domains. Finally, the break out group wished to determine whether there is a means...

  2. Detecting Structural Breaks using Hidden Markov Models

    DEFF Research Database (Denmark)

    Ntantamis, Christos

    Testing for structural breaks and identifying their location is essential for econometric modeling. In this paper, a Hidden Markov Model (HMM) approach is used in order to perform these tasks. Breaks are defined as the data points where the underlying Markov Chain switches from one state to another....... The locations of the breaks are subsequently obtained by assigning states to data points according to the Maximum Posterior Mode (MPM) algorithm. The Integrated Classification Likelihood-Bayesian Information Criterion (ICL-BIC) allows for the determination of the number of regimes by taking into account...... in the monetary policy of United States, the dierent functional form being variants of the Taylor (1993) rule....

  3. 法科教育中法律仪式教育的意义及其实现%The Significance and Its Realization of Legal Ceremony Education in Law Education

    Institute of Scientific and Technical Information of China (English)

    陈秋云; 翟晶

    2012-01-01

    Legal ceremony as a special form kind of ceremony,reflected in the whole process of law operating.Law ceremony is that in the process of law operation that the general of ceremony about what happened with law meaning.The important value of legal ceremony lies in through the specific subjects' specific behavior,specific language,or the use of specific objects,shown by the spirit experience,in order to achieve the blend between the rule of law and the value of the law.Legal ceremony has regularization and which not regularization two points.Regularization of legal ceremony scattered exist in our country of laws and regulations,fragmentized characteristics.Legal ceremony education in our country's law education department in the catalogue department law teaching,much of the content is regularization of legal ceremony.Law textbook has no the concept of legal ceremony,which not regularization in basically law education is not exist.It has positive significance that legal ceremony education on students' skills and vocational moral cultivation.%法律仪式作为仪式的一种特殊形式体现在法律运行的整个过程之中。法律仪式有规则化的(制度化的)与未被规则化的之分。规则化了的法律仪式零散存在于我国法律法规之中,呈碎片化特征。法律仪式教育在我国法科教育中散见于部门法学的教学中,内容多为规则化了的法律仪式。法学教课书中并没有法律仪式这一概念,未被规则化的法律仪式在法科教育中是不存在的。法律仪式教育对法科学生的技能与职业道德的培养有着积极意义。

  4. Signatures of time reversal symmetry breaking in multiband superconductors

    Science.gov (United States)

    Maiti, Saurabh

    Multiband superconductors serve as natural host to several possible gound states that compete with each other. At the boundaries of such competing phases, the system usually compromises and settles for `mixed' phases that can show intriguing properties like co-existence of magnetism and superconductiivty or even co-existence of different superconducting phases. The latter is particularly interesting as it can lead to non-magnetic ground states that spontaneously break Time-Reversal symmetry. While the experimental verification of such states has proved to been challenging, the theoretical investigations have provided exciting new insights into the nature of the ground state and its excitations all of which have experimental consequences of some sort. These include extrinsic properties like spontaneous currents around impurity sites, and intrinsic properties in the form of collective excitations. These collective modes bear a unique signature and should provide clear evidence for time reversal symmetry broken state. While the results are general, in light of recent Raman scattering experiments, its direct relevance to extremely hole doped Ba(1-x)K(FeAs)2 will be presented where a strong competition of s-wave and d-wave ground state is expected.

  5. Parafermionic phases with symmetry breaking and topological order

    Science.gov (United States)

    Alexandradinata, A.; Regnault, N.; Fang, Chen; Gilbert, Matthew J.; Bernevig, B. Andrei

    2016-09-01

    Parafermions are the simplest generalizations of Majorana fermions that realize topological order. We propose a less restrictive notion of topological order in one-dimensional open chains, which generalizes the seminal work by Fendley [J. Stat. Mech. (2012) P11020, 10.1088/1742-5468/2012/11/P11020]. The first essential property is that the ground states are mutually indistinguishable by local, symmetric probes, and the second is a generalized notion of zero edge modes which cyclically permute the ground states. These two properties are shown to be topologically robust, and applicable to a wider family of topologically ordered Hamiltonians than has been previously considered. As an application of these edge modes, we formulate a notion of twisted boundary conditions on a closed chain, which guarantees that the closed-chain ground state is topological, i.e., it originates from the topological manifold of the open chain. Finally, we generalize these ideas to describe symmetry-breaking phases with a parafermionic order parameter. These exotic phases are condensates of parafermion multiplets, which generalize Cooper pairing in superconductors. The stability of these condensates is investigated on both open and closed chains.

  6. Two Documents Conceming with the Celebration Ceremony for Couples Have Been Married for 50 Years Organized by Fatih Halkevi on 22 nd, February 1945 in istanbul

    OpenAIRE

    AYAN, Dr. Dursun; GÜVEN, Doç. Dr. Özbay

    2006-01-01

    For emphesaizing the importance offam iIy inthe societal life, İstanbul-Fatih (a provinciel subdivisionin central İstanbul) Halkevi ( House ofCommons / People's Homes, educational andcultural public organization units of RepublicanPeople's Party) organized a celebration programfor 54 couples have been married for 50 yearsand more. The program was date of February22 nd, 1945 and, consists ofcity excursion, ceremonyat Taksim Municipality Music-Hall, WeddingCeremony for 9 new married couples.Fol...

  7. Two Documents Conceming with the Celebration Ceremony for Couples Have Been Married for 50 Years Organized by Fatih Halkevi on 22 nd, February 1945 in istanbul

    OpenAIRE

    AYAN, Dr. Dursun; GÜVEN, Doç. Dr. Özbay

    2006-01-01

    For emphesaizing the importance offam iIy inthe societal life, İstanbul-Fatih (a provinciel subdivisionin central İstanbul) Halkevi ( House ofCommons / People's Homes, educational andcultural public organization units of RepublicanPeople's Party) organized a celebration programfor 54 couples have been married for 50 yearsand more. The program was date of February22 nd, 1945 and, consists ofcity excursion, ceremonyat Taksim Municipality Music-Hall, WeddingCeremony for 9 new married c...

  8. Moral Characteristics of Traditional Han Funeral Ceremony%汉族传统丧礼仪式的德育特质

    Institute of Scientific and Technical Information of China (English)

    张鲲

    2014-01-01

    丧礼仪式是中国传统社会重要而特殊的文化形式,它影响着华夏民族的心理情感、思维特征和行为方式,维护了古代中国超稳定的社会结构。丧礼仪式承载着古代社会德性的基本价值取向,符合官方以儒家正统思想整合家庭、家族和乡村社会的要求,在实践的层面也扩展了“礼”的内涵和实用性。全方位的互动模式、文化心理和行为惯习,是丧礼仪式独具特色的德育环境。传统丧礼仪式对个体意志结构和行动结构影响深远,对个体品德具有重要的建构作用。%Funeral ceremony is an important and special form of culture in Chinese society. The ceremony affects psychological emotion, thinking and behavior of Chinese nation, and it also maintains the ancient Chinese superstable social structure. The funeral ceremony embodies basic social moral values, it meets needs of the governments to integrate families, and household and rural society with Confucian orthodoxy, and it extends the “li” connotation and practicability in practice. Interactive patterns, culture psychology and brhavior habits present unique moral education environment. Traditional funeral ceremony brings profound influence on individual will structure and activity structure, and it also plays an important role in construction of individual morality.

  9. Unconventional supersymmetry and its breaking

    Energy Technology Data Exchange (ETDEWEB)

    Alvarez, Pedro D., E-mail: alvarez@physics.ox.ac.uk [Centro de Estudios Científicos (CECS), Av. Arturo Prat 514, Valdivia (Chile); Universidad Andrés Bello, Av. República 440, Santiago (Chile); Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford (United Kingdom); Pais, Pablo, E-mail: pais@cecs.cl [Centro de Estudios Científicos (CECS), Av. Arturo Prat 514, Valdivia (Chile); Universidad Andrés Bello, Av. República 440, Santiago (Chile); Zanelli, Jorge, E-mail: z@cecs.cl [Centro de Estudios Científicos (CECS), Av. Arturo Prat 514, Valdivia (Chile); Universidad Andrés Bello, Av. República 440, Santiago (Chile)

    2014-07-30

    We present a gauge theory for a superalgebra that includes an internal gauge (G) and local Lorentz (so(1,D−1)) algebras. These two symmetries are connected by fermionic supercharges. The field content of the system includes a (non-)abelian gauge potential A, a spin-1/2 Dirac spinor ψ, the Lorentz connection ω{sup ab}, and the vielbein e{sub μ}{sup a}. The connection one-form A is in the adjoint representation of G, while ψ is in the fundamental. In contrast to standard supersymmetry and supergravity, the metric is not a fundamental field and is in the center of the superalgebra: it is not only invariant under the internal gauge group, G, and under Lorentz transformations, SO(1,D−1), but is also invariant under supersymmetry. The distinctive features of this theory that mark the difference with standard supersymmetries are: i) the number of fermionic and bosonic states is not necessarily the same; ii) there are no superpartners with equal mass; iii) although this supersymmetry originates in a local gauge theory and gravity is included, there is no gravitino; iv) fermions acquire mass from their coupling to the background or from higher order self-couplings, while bosons remain massless. In odd dimensions, the Chern–Simons (CS) form provides an action that is (quasi-)invariant under the entire superalgebra. In even dimensions, the Yang–Mills (YM) form is the only natural option and the symmetry breaks down to G⊗SO(1,D−1). In four dimensions, the construction follows the Townsend–Mac Dowell–Mansouri approach, starting with an osp(4|2)∼usp(2,2|1) connection. Due to the absence of osp(4|2)-invariant traces in four dimensions, the resulting Lagrangian is only invariant under u(1)⊕so(3,1), which includes a Nambu–Jona-Lasinio (NJL) term. In this case, the Lagrangian depends on a single dimensionful parameter that fixes Newton's constant, the cosmological constant and the NJL coupling.

  10. Una liturgia de ruptura: el ceremonial de consagración y coronación de Agustín I

    Directory of Open Access Journals (Sweden)

    DAVID CARBAJAL LÓPEZ

    2011-01-01

    Full Text Available El 21 de julio de 1822 tuvo lugar la coronación del emperador Agustín de Iturbide, en una ceremonia original por su novedad y por el carácter constitucional del monarca. Insertada en la tradición hispánica por la historiografía reciente, la ceremonia rompía por sí misma con ella, pues el principal ceremonial de exaltación del monarca español había sido su entrada pública en la Corte, reproducida en América a través de la proclamación y paseo del Real Pendón. Además, el ceremonial retomó ampliamente el utilizado por Napoleón Bonaparte en 1804, enlazándose así con la tradición francesa de la coronación de Reims, y copiando en particular los gestos que marcaban la distancia entre el emperador y el clero. En fin, los redactores del ceremonial dieron también una importante visibilidad al Congreso, representante de la soberanía nacional.

  11. 《典仪》中印第安人的身份重构之路%On identity reconstruction of native Americans in Ceremony

    Institute of Scientific and Technical Information of China (English)

    董松涛

    2014-01-01

    Ceremony,one of the classics of Leslie Marmon Silko, revealing native Americans’ predicaments of being marginalized, this paper, analyzing a series of ceremonies held for Tayo to cure his physical and mental sufferings, proves that ceremonies are the key factors for native Americans to return their traditional Indian culture, get out of trouble of identity loss and reconstruct their identity.%由于欧洲殖民者到达美洲新大陆后对土著印第安人实行种族灭绝和文化征服政策,美洲印第安人长期面临严重的生存危机。莱斯利·马蒙·希尔科的小说《典仪》展现了混血印第安人被边缘化的困境。通过分析为小说主人公塔尤治愈身心创伤的一系列典仪,证明了典仪是印第安人回归传统文化、摆脱身份迷失困境和重构自我身份的关键。

  12. Deep sole burns in several participants in a traditional festival of the firewalking ceremony in Kee-lung, Taiwan--clinical experiences and prevention strategies.

    Science.gov (United States)

    Chang, Shun-Cheng; Hsu, Chih-Kang; Tzeng, Yuan-Sheng; Teng, Shou-Cheng; Fu, Ju-Peng; Dai, Niann-Tzyy; Chen, Shyi-Gen; Chen, Tim-Mo; Feng, Chun-Che

    2012-11-01

    Firewalking is a common Taoist cleansing ceremony in Taiwan, but burns associated with the practice have rarely been reported. We analyzed the patients with plantar burns from one firewalking ceremony. In one firewalking ceremony, 12 Taoist disciples suffered from contact burns to the soles of their feet while walking over burning coals. Eight of them had at least second-degree burns over areas larger than 1% of their total body surface areas (TBSAs). The age, sex, medical history, date of injury, time taken to traverse the fire pit, depth and TBSA of the burns, treatment, length of stay, and outcome were recorded and analyzed. Deep, disseminated second- to third-degree burns were noted and healing took as long as three weeks in some patients. Because disseminated hypertrophic scars form after burns, the soles involved regain much of their tensile strength while walking. The patients experienced only a few difficulties in their daily lives three months after injury. From our experience treating patients with deep disseminated second- to third-degree plantar burns caused by firewalking, we conclude that they should be treated conservatively, with secondary healing rather than a skin graft. Copyright © 2011 Elsevier Ltd and ISBI. All rights reserved.

  13. Water Breaking: Understand This Sign of Labor

    Science.gov (United States)

    Healthy Lifestyle Labor and delivery, postpartum care Water breaking worries? Prepare yourself for childbirth by getting the facts about this important sign of labor. By Mayo Clinic Staff If you're ...

  14. Dirac neutrino masses from generalized supersymmetry breaking

    Energy Technology Data Exchange (ETDEWEB)

    Demir, D.A. [Izmir Institute of Technology, IZTECH, Izmir (Turkey). Dept. of Physics]|[Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Everett, L.L. [University of Wisconsin, Madison, WI (United States), Dept. of Physics; Langacker, P. [Institute for Advanced Study, Princeton, NJ (United States). School of Natural Sciences

    2007-12-15

    We demonstrate that Dirac neutrino masses in the experimentally preferred range are generated within supersymmetric gauge extensions of the Standard Model with a generalized supersymmetry breaking sector. If the usual superpotential Yukawa couplings are forbidden by the additional gauge symmetry (such as a U(1){sup '}), effective Dirac mass terms involving the ''wrong Higgs'' field can arise either at tree level due to hard supersymmetry breaking fermion Yukawa couplings, or at one-loop due to nonanalytic or ''nonholomorphic'' soft supersymmetry breaking trilinear scalar couplings. As both of these operators are naturally suppressed in generic models of supersymmetry breaking, the resulting neutrino masses are naturally in the sub-eV range. The neutrino magnetic and electric dipole moments resulting from the radiative mechanism also vanish at one-loop order. (orig.)

  15. Symmetry Breaking for Answer Set Programming

    CERN Document Server

    Drescher, Christian

    2010-01-01

    In the context of answer set programming, this work investigates symmetry detection and symmetry breaking to eliminate symmetric parts of the search space and, thereby, simplify the solution process. We contribute a reduction of symmetry detection to a graph automorphism problem which allows to extract symmetries of a logic program from the symmetries of the constructed coloured graph. We also propose an encoding of symmetry-breaking constraints in terms of permutation cycles and use only generators in this process which implicitly represent symmetries and always with exponential compression. These ideas are formulated as preprocessing and implemented in a completely automated flow that first detects symmetries from a given answer set program, adds symmetry-breaking constraints, and can be applied to any existing answer set solver. We demonstrate computational impact on benchmarks versus direct application of the solver. Furthermore, we explore symmetry breaking for answer set programming in two domains: firs...

  16. Phil Anderson and Gauge Symmetry Breaking

    Science.gov (United States)

    Witten, Edward

    In this article, I describe the celebrated paper that Phil Anderson wrote in 1962 with early contributions to the idea of gauge symmetry breaking in particle physics. To set the stage, I describe the work of Julian Schwinger to which Anderson was responding, and also some of Anderson's own work on superconductivity that provided part of the context. After describing Anderson's work I describe the later work of others, leading to the modern understanding of gauge symmetry breaking in weak interactions...

  17. Symmetry Breaking and Second Order Phase Transitions

    Institute of Scientific and Technical Information of China (English)

    ZhangFengshou; R.M.Lynden-Bell

    2003-01-01

    In an earlier paper we showed that symmetry breaking could be induced in the triiodide ion by varying the solvent. Experiments and simulations suggest that protic solvents which can form hydrogen bonds with a negative ion cause symmetry breaking of the ion, so that the charge becomes concentrated at one end of the ion and the corresponding bond elongates. We suggested that one could draw an analogy between the mean field Ising model with free energy,

  18. Breaking antidunes: Cyclic behavior due to hysteresis

    DEFF Research Database (Denmark)

    Deigaard, Rolf

    2006-01-01

    The cyclic behavior of breaking antidunes (growth, breaking of surface wave, obliteration) is investigated by use of a numerical model. The model includes the transition between supercritical and transcritical flow. As the antidune grows the flow becomes transcritical and a hydraulic jump is form...... upstream of the antidune crest. The relation between growth of the antidune and supercritical flow and between decay and transcritical flow is shown, and the significance of hysteresis in the flow conditions is investigated....

  19. Is soft breaking of BRST symmetry consistent?

    CERN Document Server

    Lavrov, Peter; Reshetnyak, Alexander

    2011-01-01

    A definition of soft breaking of BRST symmetry in the field-antifield formalism is proposed, valid for general gauge theories and arbitrary gauge fixing. The Ward identities for the generating functionals of Green's functions are derived, and their gauge dependence is investigated. We present a generalization of the Gribov-Zwanziger action to a one-parameter linear gauge. It is argued that gauge theories with a soft breaking of BRST symmetry are inconsistent.

  20. Dormancy Breaking in Ormosia arborea Seeds

    OpenAIRE

    Edilma Pereira Gonçalves; Franklim Sales de Jesus Soares; Sérgio dos Santos Silva; Débora de Souza Tavares; Jeandson Silva Viana; Brenda Colleen Clifton Cardoso

    2011-01-01

    Ormosia arborea is a tree species planted in urban areas and used to restore degraded areas. Its seeds are dormant and propagation is difficult. This study compares different dormancy breaking methods and physiological seed quality and seedling production. The seeds were germinated in sand in the laboratory of the Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil. The following dormancy breaking treatments were applied: control (intact seeds), 100°C water immersion; boiling water imm...

  1. Dynamical supersymmetry breaking and unification of couplings

    CERN Document Server

    Dubovsky, S L; Troitsky, S V

    1997-01-01

    We consider the possibility of unification of the Supersymmetric Standard Model gauge groups with those of the dynamical supersymmetry breaking (DSB) sector in theories with gauge mediated supersymmetry breaking. We find constraints on the DSB gauge group beta function that come from unification of the gauge coupling constants of the two sectors. These constraints are satisfied by a fairly wide class of models. We discuss possible unification scenarios in the context of a simple model.

  2. SU(3) centre vortices underpin confinement and dynamical chiral symmetry breaking

    CERN Document Server

    O'Malley, Elyse-Ann; Leinweber, Derek; Moran, Peter

    2011-01-01

    The mass function of the nonperturbative quark propagator in SU(3) gauge theory shows only a weak dependence on the vortex content of the gauge configurations. Of particular note is the survival of dynamical mass generation on vortex-free configurations having a vanishing string tension. This admits the possibility that mass generation associated with dynamical chiral symmetry breaking persists without confinement. In this presentation, we examine the low-lying ground-state hadron spectrum of the pi, rho, N and Delta and discover that while dynamical mass generation persists in the vortex-free theory, it is not connected to dynamical chiral symmetry breaking. In this way, centre vortices in SU(3) gauge theory are intimately linked to both confinement and dynamical chiral symmetry breaking. We conclude that centre vortices are the essential underlying feature of the QCD vacuum.

  3. Kinematic criterion for breaking of shoaling waves

    Science.gov (United States)

    Liberzon, Dan; Itay, Uri

    2016-11-01

    Validity of a kinematic criterion for breaking of shoaling waves was examined experimentally. Results obtained by simultaneous measurements of water surface velocity by PTV and of the propagation velocity of a steep crest up to the point of breaking inception during shoaling will be reported. The experiments performed in a large wave tank examining breaking behavior of gentle spillers during shoaling on three different slopes suggest a validity of the recently proposed kinematic criterion. The breaking inception was found to occur when the horizontal velocity of the water surface on the steep (local steepness of 0.41-0.6) crest reaches a threshold value of 0.85-0.95 of that of the crest propagation. The exact moment and position of breaking inception detected using a Phase Time Method (PTM), characterizing a unique shape of the local frequency fluctuations at the inception. Future implementation of the PTM method for detection of breaking events in irregular wave fields will be discussed. Supported by German-Israeli Foundation for Scientific Research and Development (GIF) Grant #2019392.

  4. Ground water and energy

    Energy Technology Data Exchange (ETDEWEB)

    1980-11-01

    This national workshop on ground water and energy was conceived by the US Department of Energy's Office of Environmental Assessments. Generally, OEA needed to know what data are available on ground water, what information is still needed, and how DOE can best utilize what has already been learned. The workshop focussed on three areas: (1) ground water supply; (2) conflicts and barriers to ground water use; and (3) alternatives or solutions to the various issues relating to ground water. (ACR)

  5. Spontaneous breaking of time-reversal symmetry in topological insulators

    Energy Technology Data Exchange (ETDEWEB)

    Karnaukhov, Igor N., E-mail: karnaui@yahoo.com

    2017-06-21

    Highlights: • Proposed a new approach for description of phase transitions in topological insulators. • Considered the mechanism of spontaneous breaking of time-reversal symmetry in topological insulators. • The Haldane model can be implemented in real compounds of the condensed matter physics. - Abstract: The system of spinless fermions on a hexagonal lattice is studied. We have considered tight-binding model with the hopping integrals between the nearest-neighbor and next-nearest-neighbor lattice sites, that depend on the direction of the link. The links are divided on three types depending on the direction, the hopping integrals are defined by different phases along the links. The energy of the system depends on the phase differences, the solutions for the phases, that correspond to the minimums of the energy, lead to a topological insulator state with the nontrivial Chern numbers. We have analyzed distinct topological states and phase transitions, the behavior of the chiral gapless edge modes, have defined the Chern numbers. The band structure of topological insulator (TI) is calculated, the ground-state phase diagram in the parameter space is obtained. We propose a novel mechanism of realization of TI, when the TI state is result of spontaneous breaking of time-reversal symmetry due to nontrivial stable solutions for the phases that determine the hopping integrals along the links and show that the Haldane model can be implemented in real compounds of the condensed matter physics.

  6. Warp Breaks Detection in Jacquard Weaving Using MEMS: Effect of Weave on Break Signals

    Directory of Open Access Journals (Sweden)

    Jin H Lee, Ph.D.

    2008-03-01

    Full Text Available This paper reports a study to detect warp breaks in terms of weave structure using MEMS accelerometer based detection system. The system is briefly described. The output signals of MEMS sensors, which were mounted on harness cords of a Jacquard machine, at the moment of warp yarn break and after the break for a broad range of basic weaves were acquired during weaving. The weaves investigated are commonly used in Jacquard weaving to form patterns. The strength of the MEMS output acceleration signals was analyzed in time domain. The results show that the system is capable of detecting warp yarn breaks for the broad range of weaves studied.

  7. Chiral symmetry breaking, color superconductivity and equation of state at high density a variational approach

    CERN Document Server

    Mishra, H; Mishra, Hiranmaya; Parikh, Jitendra C.

    2001-01-01

    We discuss in this note simultaneous existence of chiral symmetry breakingand color superconductivity at finite temperature and density in aNambu-Jona-Lasinio type model. The methodology involves an explicitconstruction of a variational ground state and minimisation of thethermodynamic potential. There appears to be a phase at finite densities withboth quark antiquark as well as diquark condensates for the "ground" state.Chiral symmetry breaking phase appear to catalyse the threshold for the diquarkcondensates to appear. We also compute the equation of state in this model.

  8. Spontaneous supersymmetry breaking in the two-dimensional N=1 Wess-Zumino model

    CERN Document Server

    Steinhauer, Kyle

    2014-01-01

    We study the phase diagram of the two-dimensional N=1 Wess-Zumino model on the lattice using Wilson fermions and the fermion loop formulation. We give a complete nonperturbative determination of the ground state structure in the continuum and infinite volume limit. We also present a determination of the particle spectrum in the supersymmetric phase, in the supersymmetry broken phase and across the supersymmetry breaking phase transition. In the supersymmetry broken phase we observe the emergence of the Goldstino particle.

  9. Spontaneous supersymmetry breaking in the 2d N=1 Wess-Zumino model

    CERN Document Server

    Baumgartner, David; Wenger, Urs

    2013-01-01

    We study the phase diagram of the two-dimensional N=1 Wess-Zumino model using Wilson fermions and the fermion loop formulation. We give a complete non-perturbative determination of the ground state structure in the continuum and infinite volume limit. We also present a determination of the particle spectrum in the supersymmetric phase, in the supersymmetry broken phase and across the supersymmetry breaking phase transition. In the supersymmetry broken phase we observe the emergence of the Goldstino particle.

  10. Supersolid formation in a quantum gas breaking a continuous translational symmetry

    Science.gov (United States)

    Léonard, Julian; Morales, Andrea; Zupancic, Philip; Esslinger, Tilman; Donner, Tobias

    2017-03-01

    The concept of a supersolid state combines the crystallization of a many-body system with dissipationless flow of the atoms from which it is built. This quantum phase requires the breaking of two continuous symmetries: the phase invariance of a superfluid and the continuous translational invariance to form the crystal. Despite having been proposed for helium almost 50 years ago, experimental verification of supersolidity remains elusive. A variant with only discrete translational symmetry breaking on a preimposed lattice structure—the ‘lattice supersolid’—has been realized, based on self-organization of a Bose–Einstein condensate. However, lattice supersolids do not feature the continuous ground-state degeneracy that characterizes the supersolid state as originally proposed. Here we report the realization of a supersolid with continuous translational symmetry breaking along one direction in a quantum gas. The continuous symmetry that is broken emerges from two discrete spatial symmetries by symmetrically coupling a Bose–Einstein condensate to the modes of two optical cavities. We establish the phase coherence of the supersolid and find a high ground-state degeneracy by measuring the crystal position over many realizations through the light fields that leak from the cavities. These light fields are also used to monitor the position fluctuations in real time. Our concept provides a route to creating and studying glassy many-body systems with controllably lifted ground-state degeneracies, such as supersolids in the presence of disorder.

  11. Chiral symmetry and chiral-symmetry breaking

    Energy Technology Data Exchange (ETDEWEB)

    Peskin, M.E.

    1982-12-01

    These lectures concern the dynamics of fermions in strong interaction with gauge fields. Systems of fermions coupled by gauge forces have a very rich structure of global symmetries, which are called chiral symmetries. These lectures will focus on the realization of chiral symmetries and the causes and consequences of thier spontaneous breaking. A brief introduction to the basic formalism and concepts of chiral symmetry breaking is given, then some explicit calculations of chiral symmetry breaking in gauge theories are given, treating first parity-invariant and then chiral models. These calculations are meant to be illustrative rather than accurate; they make use of unjustified mathematical approximations which serve to make the physics more clear. Some formal constraints on chiral symmetry breaking are discussed which illuminate and extend the results of our more explicit analysis. Finally, a brief review of the phenomenological theory of chiral symmetry breaking is presented, and some applications of this theory to problems in weak-interaction physics are discussed. (WHK)

  12. Jet simulations and gamma-ray burst afterglow jet breaks

    NARCIS (Netherlands)

    van Eerten, H. J.; Meliani, Z.; Wijers, R.A.M.J.; Keppens, R.

    2010-01-01

    The conventional derivation of the gamma-ray burst afterglow jet break time uses only the blast wave fluid Lorentz factor and therefore leads to an achromatic break. We show that in general gamma-ray burst afterglow jet breaks are chromatic across the self-absorption break. Depending on circumstance

  13. Jet simulations and gamma-ray burst afterglow jet breaks

    NARCIS (Netherlands)

    van Eerten, H. J.; Meliani, Z.; Wijers, Ramj; Keppens, R.

    2011-01-01

    The conventional derivation of the gamma-ray burst afterglow jet break time uses only the blast wave fluid Lorentz factor and therefore leads to an achromatic break. We show that in general gamma-ray burst afterglow jet breaks are chromatic across the self-absorption break. Depending on circumstance

  14. Jet simulations and gamma-ray burst afterglow jet breaks

    NARCIS (Netherlands)

    van Eerten, H.J.; Meliani, Z.; Wijers, R.A.M.J.; Keppens, R.

    2012-01-01

    The conventional derivation of the gamma-ray burst afterglow jet break time uses only the blast wave fluid Lorentz factor and therefore leads to an achromatic break. We show that in general gamma-ray burst afterglow jet breaks are chromatic across the self-absorption break. Depending on circumstance

  15. Jet simulations and gamma-ray burst afterglow jet breaks

    NARCIS (Netherlands)

    van Eerten, H. J.; Meliani, Z.; Wijers, Ramj; Keppens, R.

    2011-01-01

    The conventional derivation of the gamma-ray burst afterglow jet break time uses only the blast wave fluid Lorentz factor and therefore leads to an achromatic break. We show that in general gamma-ray burst afterglow jet breaks are chromatic across the self-absorption break. Depending on

  16. Jet simulations and gamma-ray burst afterglow jet breaks

    NARCIS (Netherlands)

    van Eerten, H. J.; Meliani, Z.; Wijers, R.A.M.J.; Keppens, R.

    2010-01-01

    The conventional derivation of the gamma-ray burst afterglow jet break time uses only the blast wave fluid Lorentz factor and therefore leads to an achromatic break. We show that in general gamma-ray burst afterglow jet breaks are chromatic across the self-absorption break. Depending on

  17. Design of load-to-failure tests of high-voltage insulation breaks for ITER's cryogenic network

    Science.gov (United States)

    Langeslag, S. A. E.; Rodriguez Castro, E.; Aviles Santillana, I.; Sgobba, S.; Foussat, A.

    2015-12-01

    The development of new generation superconducting magnets for fusion research, such as the ITER experiment, is largely based on coils wound with so-called cable-in-conduit conductors. The concept of the cable-in-conduit conductor is based on a direct cooling principle, by supercritical helium, flowing through the central region of the conductor, in close contact with the superconducting strands. Consequently, a direct connection exists between the electrically grounded helium coolant supply line and the highly energised magnet windings. Various insulated regions, constructed out of high-voltage insulation breaks, are put in place to isolate sectors with different electrical potential. In addition to high voltages and significant internal helium pressure, the insulation breaks will experience various mechanical forces resulting from differential thermal contraction phenomena and electro-magnetic loads. Special test equipment was designed, prepared and employed to assess the mechanical reliability of the insulation breaks. A binary test setup is proposed, where mechanical failure is assumed when leak rate of gaseous helium exceeds 10-9·Pa·m3/s. The test consists of a load-to-failure insulation break charging, in tension, while immersed in liquid nitrogen at the temperature of 77 K. Leak tightness during the test is monitored by measuring the leak rate of the gaseous helium, directly surrounding the insulation break, with respect to the existing vacuum inside the insulation break. The experimental setup is proven effective, and various insulation breaks performed beyond expectations.

  18. Break-glass handling exceptional situations in access control

    CERN Document Server

    Petritsch, Helmut

    2014-01-01

    Helmut Petritsch describes the first holistic approach to Break-Glass which covers the whole life-cycle: from access control modeling (pre-access), to logging the security-relevant system state during Break-Glass accesses (at-access), and the automated analysis of Break-Glass accesses (post-access). Break-Glass allows users to override security restrictions in exceptional situations. While several Break-Glass models specific to given access control models have already been discussed in research (e.g., extending RBAC with Break-Glass), the author introduces a generic Break-Glass model. The pres

  19. Large eddy simulation of breaking waves

    DEFF Research Database (Denmark)

    Christensen, Erik Damgaard; Deigaard, Rolf

    2001-01-01

    is described by large eddy simulation where the larger turbulent features are simulated by solving the flow equations, and the small scale turbulence that is not resolved by the flow model is represented by a sub-grid model. A simple Smagorinsky sub-grid model has been used for the present simulations......A numerical model is used to simulate wave breaking, the large scale water motions and turbulence induced by the breaking process. The model consists of a free surface model using the surface markers method combined with a three-dimensional model that solves the flow equations. The turbulence....... The incoming waves are specified by a flux boundary condition. The waves are approaching in the shore-normal direction and are breaking on a plane, constant slope beach. The first few wave periods are simulated by a two-dimensional model in the vertical plane normal to the beach line. The model describes...

  20. Workshop on electroweak symmetry breaking: proceedings

    Energy Technology Data Exchange (ETDEWEB)

    Hinchliffe, I. (ed.)

    1984-10-01

    A theoretical workshop on electroweak symmetry breaking at the Superconducting Supercollider was held at Lawrence Berkeley Laboratory, June 4-22, 1984. The purpose of the workshop was to focus theoretical attention on the ways in which experimentation at the SSC could reveal manifestations of the phenomenon responsible for electroweak symmetry breaking. This issue represents, at present, the most compelling scientific argument for the need to explore the energy region to be made accessible by the SSC, and a major aim of the workshop was to involve a broad cross section of particle theorists in the ongoing process of sharpening the requirements for both accelerator and detector design that will ensure detection and identification of meaningful signals, whatever form the electroweak symmetry breaking phenomenon should actually take. Separate entries were prepared for the data base for the papers presented.

  1. Isospin Breaking Effects on the Lattice

    CERN Document Server

    Tantalo, Nazario

    2013-01-01

    Isospin symmetry is not exact and the corrections to the isosymmetric limit are, in general, at the percent level. For gold plated quantities, such as pseudoscalar meson masses or the kaon leptonic and semileptonic decay rates, these effects are of the same order of magnitude of the errors quoted in nowadays lattice calculations and cannot be neglected any longer. In this talk I discuss the methods that have been developed in the last few years to calculate isospin breaking corrections by starting from first principles lattice simulations. In particular, I discuss how to perform a combined QCD+QED lattice simulation and a renormalization prescription to be used in order to separate QCD from QED isospin breaking effects. A brief review of recent lattice results of isospin breaking effects on the hadron spectrum is also included.

  2. Breaking Bad News in Cancer Patients

    Science.gov (United States)

    Konstantis, Apostolos; Exiara, Triada

    2015-01-01

    Objective: In a regional hospital, many patients are newly diagnosed with cancer. Breaking the bad news in these patients and their relatives is a tough task. Many doctors are not experienced in talking to patients about death or death-related diseases. In recent years, there have been great efforts to change the current situation. The aim of this study was to investigate the experience and education of medical personnel in breaking bad news in a secondary hospital. Materials and Methods: 59 doctors from General Hospital of Komotini, Greece were included in the study. All the doctors were in clinical specialties that treated cancer patients. A brief questionnaire was developed based on current guidelines such as Baile/SPIKES framework and the ABCDE mnemonic. Results: Residents are involved in delivering bad news less frequently than specialists. Only 21 doctors (35.59%) had specific training on breaking bad news. 20 doctors (33.90%) were aware of the available techniques and protocols on breaking bad news. 47 doctors (79.66%) had a consistent plan for breaking bad news. 57 (96.61%) delivered bad news in a quiet place, 53 (89.83%) ensured no interruptions and enough time, 53 (89.83%) used simple words and 54 (91.53%) checked for understanding and did not rush through the news. 46 doctors (77.97%) allowed relatives to determine patient's knowledge about the disease. Conclusions: There were low rates of specific training in breaking bad news. However, the selected location, the physician's speech and their plan were according to current guidelines. PMID:25709183

  3. Breaking bad news in cancer patients

    Directory of Open Access Journals (Sweden)

    Apostolos Konstantis

    2015-01-01

    Full Text Available Objective: In a regional hospital, many patients are newly diagnosed with cancer. Breaking the bad news in these patients and their relatives is a tough task. Many doctors are not experienced in talking to patients about death or death-related diseases. In recent years, there have been great efforts to change the current situation. The aim of this study was to investigate the experience and education of medical personnel in breaking bad news in a secondary hospital. Materials and Methods: 59 doctors from General Hospital of Komotini, Greece were included in the study. All the doctors were in clinical specialties that treated cancer patients. A brief questionnaire was developed based on current guidelines such as Baile/SPIKES framework and the ABCDE mnemonic. Results: Residents are involved in delivering bad news less frequently than specialists. Only 21 doctors (35.59% had specific training on breaking bad news. 20 doctors (33.90% were aware of the available techniques and protocols on breaking bad news. 47 doctors (79.66% had a consistent plan for breaking bad news. 57 (96.61% delivered bad news in a quiet place, 53 (89.83% ensured no interruptions and enough time, 53 (89.83% used simple words and 54 (91.53% checked for understanding and did not rush through the news. 46 doctors (77.97% allowed relatives to determine patient′s knowledge about the disease. Conclusions: There were low rates of specific training in breaking bad news. However, the selected location, the physician′s speech and their plan were according to current guidelines.

  4. Numerical Study on Breaking Criteria for Solitary Waves

    Institute of Scientific and Technical Information of China (English)

    Chung-ren CHOU; Ruey-syan SHIH; John Z. YIM

    2003-01-01

    Studies of the breaking criteria for solitary waves on a slope are presented in this paper. The boundary element method is used to model the processes of shoaling and breaking of solitary waves on various slopes. Empirical formulae that can be used to characterize the breaking of solitary waves are presented. These include the breaking index, the wave height, the water depth, and the maximum particle velocity at the point of breaking. Comparisons with the results of other researches are given.

  5. Mediation of supersymmetry breaking in extra dimensions

    CERN Document Server

    Scrucca, C A

    2004-01-01

    I review the mechanisms of supersymmetry breaking mediation that occur in sequestered models, where the visible and the hidden sectors are separated by an extra dimension and communicate only via gravitational interactions. By locality, soft breaking terms are forbidden at the classical level and reliably computable within an effective field theory approach at the quantum level. I present a self-contained discussion of these radiative gravitational effects and the resulting pattern of soft masses, and give an overview of realistic model building based on this set-up. I consider both flat and warped extra dimensions, as well as the possibility that there be localized kinetic terms for the gravitational fields.

  6. What records have we been breaking

    Science.gov (United States)

    Bartholow, J.M.; Milhous, R.

    2002-01-01

    a??Today was another record-breaking day,a?? the evening radio or television declares. High temperatures, low temperatures, floods, drought a?? take your choice. But how can we put these pronouncements in perspective? What do they really mean? We present two types of information in this article: 1) an analysis of daily air temperature and precipitation for Fort Collins and 2) an analysis of annual precipitation for Fort Collins. Each analysis provides a different meaning to the statement about a record-breaking day or year.

  7. Effective dissipation: breaking time-reversal symmetry

    CERN Document Server

    Brown, Aidan I

    2016-01-01

    At molecular scales, fluctuations play a significant role and prevent biomolecular processes from always proceeding in a preferred direction, raising the question of how limited amounts of free energy can be dissipated to obtain directed progress. We examine the system and process characteristics that efficiently break time-reversal symmetry at fixed energy loss; in particular for a simple model of a molecular machine, an intermediate energy barrier produces unusually high asymmetry for a given dissipation. Such insight into symmetry-breaking factors that produce particularly high time asymmetry suggests generalizations to a broader class of systems.

  8. La poetica degli spazi di Breaking Bad

    Directory of Open Access Journals (Sweden)

    Sara Martin

    2015-12-01

    Full Text Available Breaking Bad (2008-2013 produced, thanks to the creativity of Vince Gilligan and his writing room, some of the most emblematic characters in the history of contemporary television. Also, the writers of Breaking Bad were able to devise places and spaces that play important symbolic functions: spaces of mediation, spaces of transit, sacred spaces. This article investigates the meanings and characteristics of some of these settings: the swimming pool, the White family home, the meth lab. The analysis considers also the relation between characters and spaces, paying particular attention to the places inhabited by the main character, Walter White.

  9. Factorization breaking in diffractive dijet photoproduction

    Energy Technology Data Exchange (ETDEWEB)

    Klasen, M. [Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik]|[Centre National de la Recherche Scientifique, 38 - Grenoble (France). Univ. Joseph Fourier, Lab. de Physique Subatomique et de Cosmologie; Kramer, G. [Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik

    2004-08-01

    We have calculated the diffractive dijet cross section in low-Q{sup 2} ep scattering in the HERA regime. The results of the calculation in LO and NLO are compared to recent experimental data of the H1 collaboration. We find that in LO the calculated cross sections are in reasonable agreement with the experimental results. In NLO, however, some of the cross sections disagree, showing that factorization breaking occurs in that order. By suppressing the resolved contribution by a factor of approximately three, good agreement with all the data is found. The size of the factorization breaking effects in diffractive dijet photoproduction agrees well with absorptive model predictions. (orig.)

  10. Factorization breaking in diffractive dijet photoproduction

    Energy Technology Data Exchange (ETDEWEB)

    Klasen, M. [Universite Joseph Fourier, CNRS-IN2P3, Laboratoire de Physique Subatomique et de Cosmologie, Grenoble (France); Universitaet Hamburg, II. Institut fuer Theoretische Physik, Hamburg (Germany); Kramer, G. [Universitaet Hamburg, II. Institut fuer Theoretische Physik, Hamburg (Germany)

    2004-12-01

    We have calculated the diffractive dijet cross section in low-Q{sup 2} ep scattering in the HERA regime. The results of the calculation in LO and NLO are compared to recent experimental data of the H1 Collaboration. We find that in LO the calculated cross sections are in reasonable agreement with the experimental results. In NLO, however, some of the cross sections disagree, showing that factorization breaking occurs in that order. By suppressing the resolved contribution by a factor of approximately three, good agreement with all the data is found. The size of the factorization breaking effects in diffractive dijet photoproduction agrees well with absorptive model predictions. (orig.)

  11. Dynamical Symmetry Breaking in Warped Compactifications

    CERN Document Server

    Rius, N

    2001-01-01

    We study dynamical electroweak symmetry breaking in the Randall-Sundrum scenario. We show that one extra dimension is enough to give the correct pattern of electroweak symmetry breaking in a simple model with gauge bosons and the right-handed top quark in the bulk. The top quark mass is also in agreement with experiment. Furthermore, we propose an extended scenario with all Standard Model gauge bosons and fermions propagating in the bulk, which naturally accommodates the fermion mass hierarchies. No new fields or interactions beyond the observed in the Standard Model are required.

  12. Breaking the cycle of family violence

    OpenAIRE

    Heikkinen, Eeva

    2009-01-01

    ABSTRACT Heikkinen Eeva. Breaking the cycle of family violence. Järvenpää, Autumn 2009, 51 pages, 2 appendices. Diaconia University of Applied Sciences, Diak South, Järvenpää. Degree Programme in Social Services. The research was done in a shelter for battered family members, a place where families can go, when they are unable to stay at home because of violence. The aim of the research was to find out the role of the shelter in breaking the cycle of family violence and to ...

  13. Gauge mediated supersymmetry breaking and neutrino anomalies

    CERN Document Server

    Joshipura, A S; Joshipura, Anjan S.; Vempati, Sudhir K.

    1999-01-01

    Supersymmetric standard model with softly broken lepton symmetry provides a suitable framework to accommodate the solar and atmospheric neutrino anomalies. This model contains a natural explanation for large mixing and hierarchal masses without fine tuning of the parameters. Neutrino spectrum is particularly constrained in the minimal messenger model (MMM) of gauge mediated SUSY breaking, since all SUSY breaking effects are controlled in MMM by a single parameter. We study the structure of neutrino masses and mixing both in MMM and in simple extensions of it in the context of solar and atmospheric neutrino anomalies.

  14. Ibsen's Plays in China And Their Ethical Value:A Speech at the Closing Ceremony of the Third International Ibsen Conference in China

    Institute of Scientific and Technical Information of China (English)

    Nie Zhenzhao

    2005-01-01

    This is a speech delivered at the closing ceremony of The Third International Ibsen Conference in China, which introduces some people and their studies on Ibsen in China, and takes A Doll's House as an example for an ethical analysis. The speech chooses Professor Wang Zhongxiang, Professor Kwok-kan Tam, Professor Knut Brynhildsvoll and others for an evaluation of their studies as the evidence of achievements in the Ibsen studies in the New Period in China. The speech, from the perspective of ethical literary criticism, also analyses A Doll's House as a moral play to raise moral questions and concludes that Ibsen's so-called social problem plays are ethical problem ones.

  15. Cultural Analysis of Olympic Flame Lighting Ceremony%奥运圣火点燃仪式的文化解析

    Institute of Scientific and Technical Information of China (English)

    董宇; 孙玉巍; 石晶; 李小兰

    2013-01-01

      运用文献资料法、观察法等研究方法,从文化学视角分析奥运圣火点燃仪式的文化价值,从文化学的物质、制度、精神3个层面解读奥运圣火点燃过程中所蕴含的理念与创意,从而深入理解和传承奥运文化。奥运火炬作为奥运精神的物质文化载体,其设计造型对彰显东道主本土文化与教育传播有着十分重要的价值与意义;奥运火炬传递作为奥林匹克运动会的前奏,具有自己独特的结构和功能,体现出明显的文化特性,符合奥运文化的发展要求;奥运圣火点燃更是整个开幕式中的核心环节,是主办国对奥运情感的抒发、奥运精神的理解、奥运承办的勇气的现实见证,为体育、艺术、科技精髓的融合提供了现实舞台。%With the methods of documental information and observation, the paper analyzes the cultural val-ue of Olympic flame lighting ceremony from the viewpoint of culturology.It discusses the ideas and originali-ty of Olympic flame lighting ceremony from matter, system and spirit of culturology in order to further under-stand and inherit the culture of Olympic Games.As the material carrier of Olympic culture, the Olympic torch’ design plays an important role in highlighting the host native culture and educational dissemination;as a prelude to Olympics Games, the Olympic torch has its unique structure and function which embody the obvious cultural features in line with the developing requirements of Olympic culture.Especially as the core of the opening ceremony, the Olympic flame lighting ceremony can really witness the host country’s Olympic emotional expression, Olympic spirit understanding and courage of hosting Olympics, which provides a real-istic stage for the fusion of sports, art, science and technology.

  16. Ceremonial y protocolo: métodos y técnicas de investigación científica

    OpenAIRE

    Marta Pulido Polo

    2015-01-01

    El estudio científico del ceremonial y el protocolo, desde una perspectiva relacionista, debe abordarse desde la base epistemológica de las ciencias sociales a través del adecuado empleo de métodos y técnicas de investigación. A través de un análisis teórico sustentado en la revisión de fuentes secundarias, este trabajo tiene como objetivo principal realizar una aproximación terminológica a los principales conceptos epistemológicos inherentes a las ciencias sociales para pasar, con posteriori...

  17. Breaking a magnetic zero locus: asymptotic analysis

    OpenAIRE

    Raymond, Nicolas

    2014-01-01

    25 pages; This paper deals with the spectral analysis of the Laplacian in presence of a magnetic field vanishing along a broken line. Denoting by $\\theta$ the breaking angle, we prove complete asymptotic expansions of all the lowest eigenpairs when $\\theta$ goes to $0$. The investigation deeply uses a coherent states decomposition and a microlocal analysis of the eigenfunctions.

  18. Symmetry and symmetry breaking in particle physics

    OpenAIRE

    Tsou, ST

    1998-01-01

    Symmetry, in particular gauge symmetry, is a fundamental principle in theoretical physics. It is intimately connected to the geometry of fibre bundles. A refinement to the gauge principle, known as ``spontaneous symmetry breaking'', leads to one of the most successful theories in modern particle physics. In this short talk, I shall try to give a taste of this beautiful and exciting concept.

  19. Geometrical hierarchy and spontaneous symmetry breaking

    Energy Technology Data Exchange (ETDEWEB)

    Farakos, K.; Koutsoumbas, G.; Surridge, M.; Zoupanos, G.

    1987-06-04

    A four-dimensional gauge theory, where Higgs fields and the corresponding potential appear naturally, is obtained by dimensionally reducing a pure gauge theory over a compact coset space S/R. We show, using an explicit example, that a hierarchy of the scales in the coset space can change the spontaneous symmetry breaking of the four-dimensional gauge theory.

  20. Dimensional reduction and dynamical symmetry breaking

    Energy Technology Data Exchange (ETDEWEB)

    Forgacs, P.; Zoupanos, G.

    1984-11-22

    We present a model in which the electroweak gauge group is broken according to a dynamical scenario based on the chiral symmetry breaking of high colour representations. The dynamical scenario requires also the existence of elementary Higgs fields, which in the present scheme come from the dimensional reduction of a pure gauge theory.

  1. Dimensional reduction and dynamical symmetry breaking

    Energy Technology Data Exchange (ETDEWEB)

    Forgacs, P.; Zoupanos, G. (European Organization for Nuclear Research, Geneva (Switzerland))

    1984-11-22

    We present a model in which the electroweak gauge group is broken according to a dynamical scenario based on the chiral symmetry breaking of high colour representations. The dynamical scenario also requires the existence of elementary Higgs fields, which in the present scheme come from the dimensional reduction of a pure gauge theory.

  2. Density Functional Simulation of a Breaking Nanowire

    DEFF Research Database (Denmark)

    Nakamura, A.; Brandbyge, Mads; Hansen, Lars Bruno

    1999-01-01

    We study the deformation and breaking of an atomic-sized sodium wire using density functional simulations. The wire deforms through sudden atomic rearrangements and smoother atomic displacements. The conductance of the wire exhibits plateaus at integer values in units of 2e(2)/h corresponding...

  3. Dynamical Symmetry Breaking in RN Quantum Gravity

    Directory of Open Access Journals (Sweden)

    A. T. Kotvytskiy

    2011-01-01

    Full Text Available We show that in the RN gravitation model, there is no dynamical symmetry breaking effect in the formalism of the Schwinger-Dyson equation (in flat background space-time. A general formula for the second variation of the gravitational action is obtained from the quantum corrections hμν (in arbitrary background metrics.

  4. Prediction of LOCA Break Size Using CFNN

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Geon Pil; Yoo, Kwae Hwan; Back, Ju Hyun; Kim, Dong Yeong; Na, Man Gyun [Chosun University Gwangju (Korea, Republic of)

    2016-05-15

    The NPPs have the emergency core cooling system (ECCS) such as a safety injection system. The ECCS may not function properly in case of the small break size due to a slight change of pressure in the pipe. If the coolant is not supplied by ECCS, the reactor core will melt. Therefore, the meltdown of reactor core have to be prevented by appropriate accident management through the prediction of LOCA break size in advance. This study presents the prediction of LOCA break size using cascaded fuzzy neural network (CFNN). The CFNN model repeatedly applies FNN modules that are serially connected. The CFNN model is a data-based method that requires data for its development and verification. The data were obtained by numerically simulating severe accident scenarios of the optimized power reactor (OPR1000) using MAAP code, because real severe accident data cannot be obtained from actual NPP accidents. The CFNN model has been designed to rapidly predict the LOCA break size in LOCA situations. The CFNN model was trained by using the training data set and checked by using test data set. These data sets were obtained using MAAP code for OPR1000 reactor. The performance results of the CFNN model show that the RMS error decreases as the stage number of the CFNN model increases. In addition, the performance result of the CFNN model presents that the RMS error level is below 4%.

  5. Variations on supersymmetry breaking and neutrino spectra

    Energy Technology Data Exchange (ETDEWEB)

    Borzumati, F.; Hamaguchi, K.; Nomura, Y.; Yanagida, T.

    2000-12-11

    The problem of generating light neutrinos within supersymmetric models is discussed. It is shown that the hierarchy of scales induced by supersymmetry breaking can give rise to suppression factors of the correct order of magnitude to produce experimentally allowed neutrino spectra.

  6. A gravity term from spontaneous symmetry breaking

    CERN Document Server

    Moise, Mihai

    2014-01-01

    In this model, the gravity term in the Lagrangean comes from spontaneous symmetry breaking of an additional scalar quadruplet field $\\Upsilon$. The resulting gravitational field is approximate to one of the models of coframe gravity with parameters $\\rho_1 + 4 \\rho_2 = 0$, $\\rho_3 = 0$. This article includes an exact solution of coframe gravity with model parameters $\\rho_1 \

  7. Path-breaking books in regional science

    NARCIS (Netherlands)

    Waldorf, BS

    2004-01-01

    This article presents a collection of regional science books that long-standing members of the Regional Science Association International (RSAI) identified as path-breaking books. The most frequently nominated books include the "classics" by Isard, the seminal books in urban economics by Alonso, Mut

  8. Symmetry Breaking for Black-Scholes Equations

    Institute of Scientific and Technical Information of China (English)

    YANG Xuan-Liu; ZHANG Shun-Li; QU Chang-Zheng

    2007-01-01

    Black-Scholes equation is used to model stock option pricing. In this paper, optimal systems with one to four parameters of Lie point symmetries for Black-Scholes equation and its extension are obtained. Their symmetry breaking interaction associated with the optimal systems is also studied. As a result, symmetry reductions and corresponding solutions for the resulting equations are obtained.

  9. Path-breaking books in regional science

    NARCIS (Netherlands)

    Waldorf, BS

    2004-01-01

    This article presents a collection of regional science books that long-standing members of the Regional Science Association International (RSAI) identified as path-breaking books. The most frequently nominated books include the "classics" by Isard, the seminal books in urban economics by Alonso, Mut

  10. Path-breaking books in regional science

    NARCIS (Netherlands)

    Waldorf, BS

    This article presents a collection of regional science books that long-standing members of the Regional Science Association International (RSAI) identified as path-breaking books. The most frequently nominated books include the "classics" by Isard, the seminal books in urban economics by Alonso,

  11. Supersymmetry Breaking and the Cosmological Constant

    CERN Document Server

    Banks, T

    2014-01-01

    I review three attempts to explain the small value of the cosmological constant, and their connection to SUSY breaking. They are The String Landscape, Supersymmetric Large Extra Dimensions (SLED), and the Holographic Space-time Formalism invented by Fischler and myself.

  12. Numerical analysis of etoposide induced DNA breaks.

    Directory of Open Access Journals (Sweden)

    Aida Muslimović

    Full Text Available BACKGROUND: Etoposide is a cancer drug that induces strand breaks in cellular DNA by inhibiting topoisomerase II (topoII religation of cleaved DNA molecules. Although DNA cleavage by topoisomerase II always produces topoisomerase II-linked DNA double-strand breaks (DSBs, the action of etoposide also results in single-strand breaks (SSBs, since religation of the two strands are independently inhibited by etoposide. In addition, recent studies indicate that topoisomerase II-linked DSBs remain undetected unless topoisomerase II is removed to produce free DSBs. METHODOLOGY/PRINCIPAL FINDINGS: To examine etoposide-induced DNA damage in more detail we compared the relative amount of SSBs and DSBs, survival and H2AX phosphorylation in cells treated with etoposide or calicheamicin, a drug that produces free DSBs and SSBs. With this combination of methods we found that only 3% of the DNA strand breaks induced by etoposide were DSBs. By comparing the level of DSBs, H2AX phosphorylation and toxicity induced by etoposide and calicheamicin, we found that only 10% of etoposide-induced DSBs resulted in histone H2AX phosphorylation and toxicity. There was a close match between toxicity and histone H2AX phosphorylation for calicheamicin and etoposide suggesting that the few etoposide-induced DSBs that activated H2AX phosphorylation were responsible for toxicity. CONCLUSIONS/SIGNIFICANCE: These results show that only 0.3% of all strand breaks produced by etoposide activate H2AX phosphorylation and suggests that over 99% of the etoposide induced DNA damage does not contribute to its toxicity.

  13. Quantum break-time of de Sitter

    Science.gov (United States)

    Dvali, Gia; Gómez, César; Zell, Sebastian

    2017-06-01

    The quantum break-time of a system is the time-scale after which its true quantum evolution departs from the classical mean field evolution. For capturing it, a quantum resolution of the classical background—e.g., in terms of a coherent state—is required. In this paper, we first consider a simple scalar model with anharmonic oscillations and derive its quantum break-time. Next, following [1], we apply these ideas to de Sitter space. We formulate a simple model of a spin-2 field, which for some time reproduces the de Sitter metric and simultaneously allows for its well-defined representation as quantum coherent state of gravitons. The mean occupation number N of background gravitons turns out to be equal to the de Sitter horizon area in Planck units, while their frequency is given by the de Sitter Hubble parameter. In the semi-classical limit, we show that the model reproduces all the known properties of de Sitter, such as the redshift of probe particles and thermal Gibbons-Hawking radiation, all in the language of quantum S-matrix scatterings and decays of coherent state gravitons. Most importantly, this framework allows to capture the 1/N-effects to which the usual semi-classical treatment is blind. They violate the de Sitter symmetry and lead to a finite quantum break-time of the de Sitter state equal to the de Sitter radius times N. We also point out that the quantum-break time is inversely proportional to the number of particle species in the theory. Thus, the quantum break-time imposes the following consistency condition: older and species-richer universes must have smaller cosmological constants. For the maximal, phenomenologically acceptable number of species, the observed cosmological constant would saturate this bound if our Universe were 10100 years old in its entire classical history.

  14. Ceremony 25 years Cern

    CERN Multimedia

    Schopper,H

    1981-01-01

    Le D.G.H.Schopper remercie le personnel pour son engagement, collaboration et enthousiasme pendant leur 25 ans de service; il remercie aussi sincèrement les épouses et époux pour leur compréhension, ainsi que le chef gérant du restaurant Coop pour ses précieux services depuis 1956. Colin Taylor joue au piano les hymnes nationaux des differents pays; remise des souvenirs par (?)

  15. Ceremony marking Einstein Year

    CERN Multimedia

    2005-01-01

    Sunday 13th November at 10:00amat Geneva's St. Peter's Cathedral To mark Einstein Year and the importance of the intercultural dialogue of which it forms a part, a religious service will take place on Sunday 13 November at 10 a.m. in St. Peter's Cathedral, to which CERN members and colleagues are warmly welcomed. Pastor Henry Babel, senior minister at the Cathedral, will speak on the theme: 'God in Einstein's Universe'. Diether Blechschmidt will convey a message on behalf of the scientific community.

  16. The Bhiksuni Buddhist Ceremonies

    Institute of Scientific and Technical Information of China (English)

    1995-01-01

    At the Seventh Chuanjie Fahui (a Buddhist meeting to impart monastic disciplines) of the Buddhism Association of Sichuan Province held at Baoguang Temple in Chengdu and attended by 127 bhiksunL Dharmacarya Long Lian leads several bhik suni toward the Buddhist preaching hall to impart Erbuseng Jie (the highest monastic discipline for bhiksuni) to them.

  17. GYANTSE SPRING PLOUGHING CEREMONY

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    With a total of 765.6 hectares of plowed land,Kharmey Township is the principal place for grain production in Gyantse.Villagers, including both men and women,old or young and dressed in festival costumes,are crowding together at the edge of the field in the early morning;they place buttered tea, barley yeasted wine,sutra steamers, and incense burners for prayers for

  18. The LEP inauguration ceremony

    CERN Document Server

    1989-01-01

    This photo was taken in November 1989 at the inauguration of the Large Electron-Positron (LEP) collider. From the left, Princess Margriet of the Netherlands, King Carl Gustav of Sweden, CERN Council President Josef Rembser, President Francois Mitterand of France, President Jean-Pascal Delamuraz of Switzerland, Carlo Rubbia, Director-General of CERN at the time.

  19. Ceremony marking Einstein Year

    CERN Multimedia

    2005-01-01

    Sunday 13th November at 10:00amat Geneva's St. Peter's Cathedral To mark Einstein Year and the importance of the intercultural dialogue of which it forms a part, a religious service will take place on Sunday 13 November at 10 a.m. in St. Peter's Cathedral, to which CERN members and colleagues are warmly welcomed. Pastor Henry Babel, senior minister at the Cathedral, will speak on the theme: 'God in Einstein's Universe'. Diether Blechschmidt will convey a message on behalf of the scientific community.

  20. Ceremony 25 years

    CERN Multimedia

    Schopper,H

    1987-01-01

    Le DG H. Schopper félicite et remercie les 273 personnes qui fêtent 25 ans de service pour leurs engagement, enthousiasme et dévouement. Il remercie également Robert Milligan, maître de cérémonie. Interludes musicaux, joués par C.Tayloer et ?

  1. Influencing Factors of Breaking Capacity of Double-Break Vacuum Circuit Breakers

    Directory of Open Access Journals (Sweden)

    Shengwen Shu

    2013-06-01

    Full Text Available Using a series arrangement of two vacuum interrupters (VIs has been proved to be an effective way of developing higher voltage vacuum circuit breakers (VCBs, which are known as double-break VCBs. The uniform distribution of the transient recovery voltage (TRV across each VI is very critical for the breaking capacity of double-break VCBs. In this paper, the TRV distribution characteristics of double-break VCBs was studied by the synthetic test and the PSCAD/EMTDC simulation based on a vacuum arc interruption model. The results show that the bias of the TRV distribution ratio is caused by the stray capacitance and the imbalanced post arc plasma characteristic in each VI, which is consistent with the theoretical analysis. Moreover, the negative effect of grading capacitors was discussed. The results show that it is advisable to limit the value of grading capacitors to those ranges which can guarantee sufficiently improve the voltage distribution.

  2. Airport Ground Staff Scheduling

    DEFF Research Database (Denmark)

    Clausen, Tommy

    travels safely and efficiently through the airport. When an aircraft lands, a significant number of tasks must be performed by different groups of ground crew, such as fueling, baggage handling and cleaning. These tasks must be complete before the aircraft is able to depart, as well as check......-in and security services. These tasks are collectively known as ground handling, and are the major source of activity with airports. The business environments of modern airports are becoming increasingly competitive, as both airports themselves and their ground handling operations are changing to private...... ownership. As airports are in competition to attract airline routes, efficient and reliable ground handling operations are imperative for the viability and continued growth of both airports and airlines. The increasing liberalization of the ground handling market prompts ground handling operators...

  3. [Introduction to grounded theory].

    Science.gov (United States)

    Wang, Shou-Yu; Windsor, Carol; Yates, Patsy

    2012-02-01

    Grounded theory, first developed by Glaser and Strauss in the 1960s, was introduced into nursing education as a distinct research methodology in the 1970s. The theory is grounded in a critique of the dominant contemporary approach to social inquiry, which imposed "enduring" theoretical propositions onto study data. Rather than starting from a set theoretical framework, grounded theory relies on researchers distinguishing meaningful constructs from generated data and then identifying an appropriate theory. Grounded theory is thus particularly useful in investigating complex issues and behaviours not previously addressed and concepts and relationships in particular populations or places that are still undeveloped or weakly connected. Grounded theory data analysis processes include open, axial and selective coding levels. The purpose of this article was to explore the grounded theory research process and provide an initial understanding of this methodology.

  4. Analysis of Melancholy in Alfred Tennyson’s“Break, Break, Break”

    Institute of Scientific and Technical Information of China (English)

    张兰兰

    2012-01-01

      s: As a“Poet Laureate”, Alfred Lord Tennyson has been loved and respected by critics and readers. He is famous not only for his unsurpassed virtuosity, but also the melancholy feeling in his poetry. He excels at penning short lyrics, among which“Break, Break, Break”is one of the representatives. This paper analyzes the melancholy in the poem from different per⁃spectives, the rhetorical device of repetend, the diction and the sound.

  5. Ground Vehicle Robotics

    Science.gov (United States)

    2013-08-20

    Ground Vehicle Robotics Jim Parker Associate Director, Ground Vehicle Robotics UNCLASSIFIED: Distribution Statement A. Approved for public...DATE 20 AUG 2013 2. REPORT TYPE Briefing Charts 3. DATES COVERED 09-05-2013 to 15-08-2013 4. TITLE AND SUBTITLE Ground Vehicle Robotics 5a...Willing to take Risk on technology -User Evaluated -Contested Environments -Operational Data Applied Robotics for Installation & Base Ops -Low Risk

  6. Study ethnomathematics of aboge (alif, rebo, wage) calendar as determinant of the great days of Islam and traditional ceremony in Cirebon Kasepuhan Palace

    Science.gov (United States)

    Syahrin, Muhammad Alfi; Turmudi, Puspita, Entit

    2016-02-01

    This research attempts to show about the relationship between mathematics and culture. Paradigm that emerged currently, that mathematics is an abstract concept and difficult, therefore mathematics is not favored by most students. In the reality, indirectly mathematics is present in a culture of a society. Ethnomathematics study is a study to examine how does a group of people in a particular culture understand, express, and use the concepts and practices of culture that depicted mathematically. This research was conducted in Cirebon precisely in Kasepuhan Palace, which was in RW 04, Kasepuhan village, Lemah Wungkuk district, Cirebon city, West Java. The focus of the study and research purposes was the application of aboge (alif rebo wage) calendar as the calculation of days and the calendar rules determine the time of days, great days of Islam and traditional ceremony in Kasepuhan Palace. Qualitative methods with the principles of ethnography such as studies in ethnomathematics i.e observation, interviews, documentation and fieldnotes were used in this research. The findings of this ethnomathematics study show that the determining great days of Islam and the days of palace traditional ceremony have a close relationship with the counts and principles in mathematics. This study provides recommendations that mathematics is closely related to culture due to ethnomathematics.

  7. 德宏傣族人生礼仪念词的社会功能研究%Social Functions of Dai Ceremony Lines

    Institute of Scientific and Technical Information of China (English)

    李瑛

    2011-01-01

    From the aspect of sociology of the reading of ceremony lines,the ceremony lines connect each Dai social members,guide them with Dai national morality and ethics,extend Dai cultural customs and function the development and changes in the concept of harmonious society.%念词是具备强烈生活感情的民间文学形式,同时也是蕴含多方面社会功能的民俗表现形式。以德宏傣族人生礼仪念词不同社会功能的结构表现以及社会历史发展进程中念词社会功能的变迁为主要内容,从念词念诵的社会学视角考察发现,在仪式过程中念词完成了对傣族社会成员多方面关系的维系作用,念词担当着傣民族道德与规约的伦理引导,念词蕴涵并延续着傣民族的文化风俗与传统习惯;当下和谐社会理念下念词社会功能得到进一步的发展。

  8. Ceremonias, mujer y jerarquía social en el modelo religioso barroco = Ceremonies, woman and social hierarchy in the baroque religious model

    Directory of Open Access Journals (Sweden)

    Valencia-Rodríguez, Juan Manuel

    2017-01-01

    Full Text Available Resumen: El imaginario o modelo religioso barroco representaba un universo mental capaz de ofrecer una concepción global del mundo y de la sociedad, de contornos bien definidos. Entre sus elementos recurrentes figuran los tres aquí estudiados: primero, la importancia concedida al ceremonial, en favor de una religiosidad externa y ritualizada que reafirmaba el papel indispensable de los sacerdotes; segundo, la visión negativa que el catolicismo emite sobre la mujer, conceptuada como un ser inferior; finalmente, la relación entre el discurso eclesiástico y el sistema jerárquico de la sociedad, al que el modelo religioso contribuye a legitimar. Tales mensajes se analizan a través de cinco obras de la época. = Abstract: The imaginary or Baroque religious model represented a mental universe capable to offer a global conception of the world and the society with well-defined outlines. Among its recurrent elements are the three treated here; first: the importance given to the ceremonial in favour of an external and ritualized religiosity that reaffirmed the essential role of priests; second: the negative view of Catholicism about the woman, seen as a lower human being; finally, the relationship between the ecclesiastical speech and the hierarchical system of the society, that the religious model contributes to legitimize. Such messages are analyzed through five works of the period.

  9. An Interpretation of the Ecological Ethics in Ceremony%《典仪》中的生态伦理意蕴解读

    Institute of Scientific and Technical Information of China (English)

    张明兰; 王发德

    2014-01-01

    莱斯利·马蒙·西尔科在《典仪》中,通过讲述无归属的印第安青年塔尤经过部落典仪治疗找回自我和身份的故事,再现了原住民的地域景观、宗教信仰、传统习俗,重新演绎了这一原生文化形态及其魅力。土著人的灵学观、时空观体现了印第安人万物合一的整体观及和谐文化精神,对复原和身份认同起了重要的作用。%In Ceremony, Leslie Marmon Silko tells a story of how Tayo, a Native American, reestablishes his cultural identity with the treatment of tribal ceremony after returning back from the World War II. Through the story, Leslie reproduces the geographical landscape, religious beliefs and customs of the n-ative people, revealing the charm of the native culture. Native Americans’ animism, view of time and space represent their concept of holism and harmonious cultural spirit, and play an important role in help-ing them regain cultural identity.

  10. Discussion on the "Hajie" Ceremony Culture of Jing%浅述京族“哈节”仪式文化

    Institute of Scientific and Technical Information of China (English)

    陈孝余

    2011-01-01

    Hajie ceremony is not only the most important ethnic Serbs in Jing festivals,but also the tribe's activity respecting for the Holy Spirit, seeking peace annually,as the main content of the grand event.As a nation describing the history about sea,its Hajie Festival steeped in the archaic relic of Jing.Therefore,Hajie is the carrier of the national culture of jing,and is a comprehensive reflection of culture and the personal expression about Jing national consciousness.This thesis discusses the basic processes and characteristics of sacrificial culture of the ceremony of Ha jie via the Ha jie in Wu Tou,one of the three islands of Jing.%"哈节"是京族人最为重要的民族传统节日,也是京族人一年一度的以"敬圣神、求平安"为主要内容的盛大活动。作为一个以"海"抒写历史的民族,京族"哈节"积淀着的民族传统。因此,哈节是京族文化的集中体现。哈节仪式丰富多彩,是京族文化与宗教思想的综合表现。

  11. The Grounded Theory Bookshelf

    Directory of Open Access Journals (Sweden)

    Vivian B. Martin, Ph.D.

    2005-03-01

    Full Text Available Bookshelf will provide critical reviews and perspectives on books on theory and methodology of interest to grounded theory. This issue includes a review of Heaton’s Reworking Qualitative Data, of special interest for some of its references to grounded theory as a secondary analysis tool; and Goulding’s Grounded Theory: A practical guide for management, business, and market researchers, a book that attempts to explicate the method and presents a grounded theory study that falls a little short of the mark of a fully elaborated theory.Reworking Qualitative Data, Janet Heaton (Sage, 2004. Paperback, 176 pages, $29.95. Hardcover also available.

  12. Metastable spontaneous breaking of N = 2 supersymmetry

    Science.gov (United States)

    Légeret, Benoît; Scrucca, Claudio A.; Smyth, Paul

    2013-05-01

    We show that contrary to the common lore it is possible to spontaneously break N = 2 supersymmetry even in simple theories without constant Fayet-Iliopoulos terms. We consider the most general N = 2 supersymmetric theory with one hypermultiplet and one vector multiplet without Fayet-Iliopoulos terms, and show that metastable supersymmetry breaking vacua can arise if both the hyper-Kähler and the special-Kähler geometries are suitably curved. We then also prove that while all the scalars can be massive, the lightest one is always lighter than the vector boson. Finally, we argue that these results also directly imply that metastable de Sitter vacua can exist in N = 2 supergravity theories with Abelian gaugings and no Fayet-Iliopoulos terms, again contrary to common lore, at least if the cosmological constant is sufficiently large.

  13. Analysis of chiral symmetry breaking mechanism

    Energy Technology Data Exchange (ETDEWEB)

    Xin-Heng, Guo [Centro Brasileiro de Pesquisas Fisicas (CBPF), Rio de Janeiro, RJ (Brazil); Tao, Huang [Academia Sinica, Beijing, BJ (China). Inst. of High Energy Physics; Chuang, Wang

    1997-07-01

    The renormalization group invariant quark condensate {mu} is determinate both from the consistent equation for quark condensate in the chiral limit and from the Schwinger-Dyson (SD) equation improved by the intermediate range QCD force singular like {delta} (q) which is associated with the gluon condensate. The solutions of {mu} in these two equations are consistent. We also obtain the critical strong coupling constant {alpha}c above which chiral symmetry breaks in two approaches. The nonperturbative kernel of the SD equation makes {alpha}c smaller and {mu} bigger. An intuitive picture of the condensation above {alpha}c is discussed. In addition, with the help of the Slavnov-Taylor-Ward (STW) identity we derive the equations for the nonperturbative quark propagator from SD equation in the presence of the intermediate-range force is also responsible for dynamical chiral symmetry breaking. (author) 32 refs., 2 figs.

  14. Collective neutrino oscillations and spontaneous symmetry breaking

    Science.gov (United States)

    Duan, Huaiyu

    2015-08-01

    Neutrino oscillations in a hot and dense astrophysical environment such as a core-collapse supernova pose a challenging, seven-dimensional flavor transport problem. To make the problem even more difficult (and interesting), neutrinos can experience collective oscillations through nonlinear refraction in the dense neutrino medium in this environment. Significant progress has been made in the last decade towards the understanding of collective neutrino oscillations in various simplified neutrino gas models with imposed symmetries and reduced dimensions. However, a series of recent studies seem to have "reset" this progress by showing that these models may not be compatible with collective neutrino oscillations because the latter can break the symmetries spontaneously if they are not imposed. We review some of the key concepts of collective neutrino oscillations by using a few simple toy models. We also elucidate the breaking of spatial and directional symmetries in these models because of collective oscillations.

  15. Collective neutrino oscillations and spontaneous symmetry breaking

    CERN Document Server

    Duan, Huaiyu

    2015-01-01

    Neutrino oscillations in a hot and dense astrophysical environment such as a core-collapse supernova pose a challenging, seven-dimensional flavor transport problem. To make the problem even more difficult (and interesting), neutrinos can experience collective oscillations through nonlinear refraction in the dense neutrino medium in this environment. Significant progress has been made in the last decade towards the understanding of collective neutrino oscillations in various simplified neutrino gas models with imposed symmetries and reduced dimensions. However, a series of recent studies seem to have "reset" this progress by showing that these models may not be compatible with collective neutrino oscillations because the latter can break the symmetries spontaneously if they are not imposed. We review some of the key concepts of collective neutrino oscillations by using a few simple toy models. We also elucidate the breaking of spatial and directional symmetries in these models because of collective oscillation...

  16. Lyman Break Galaxies in the NGST Era

    CERN Document Server

    Ferguson, H C; Papovich, C; Ferguson, Henry C.; Dickinson, Mark; Papovich, Casey

    2002-01-01

    With SIRTF and NGST in the offing, it is interesting to examine what the stellar populations of z~3 galaxies models imply for the existence and nature of Lyman-break galaxies at higher redshift. To this end, we ``turn back the clock'' on the stellar population models that have been fit to optical and infrared data of Lyman-break galaxies at z~3. The generally young ages (typically 10^8 +- 0.5 yr) of these galaxies imply that their stars were not present much beyond z=4. For smooth star-formation histories SFR(t) and Salpeter IMFs, the ionizing radiation from early star-formation in these galaxies would be insufficient to reionize the intergalactic medium at z~6, and the luminosity density at z~4 would be significantly lower than observed. We examine possible ways to increase the global star-formation rate at higher redshift without violating the stellar-population constraints at z~3.

  17. The Radiative Z2 Breaking Twin Higgs

    CERN Document Server

    Yu, Jiang-Hao

    2016-01-01

    In twin Higgs model, the Higgs boson mass is protected by a $Z_2$ symmetry. The $Z_2$ symmetry needs to be broken either explicitly or spontaneously to obtain misalignment between electroweak and new physics vacua. We propose a novel $Z_2$ breaking mechanism, in which the $Z_2$ is spontaneously broken by radiative corrections to the Higgs potential. Two twin Higgses with different vacua are needed, and vacuum misalignment is realized by opposite but comparable contributions from gauge and Yukawa interactions to the potential. Due to fully radiative symmetry breaking, the Higgs sector is completely determined by twin Higgs vacuum, Yukawa and gauge couplings. There are eight pseudo-Goldstone bosons: the Higgs boson, inert doublet Higgs, and three twin scalars. We show the 125 GeV Higgs mass and constraints from Higgs coupling measurements could be satisfied.

  18. Symmetry Breaking in Neuroevolution: A Technical Report

    CERN Document Server

    Urfalioglu, Onay

    2011-01-01

    Artificial Neural Networks (ANN) comprise important symmetry properties, which can influence the performance of Monte Carlo methods in Neuroevolution. The problem of the symmetries is also known as the competing conventions problem or simply as the permutation problem. In the literature, symmetries are mainly addressed in Genetic Algoritm based approaches. However, investigations in this direction based on other Evolutionary Algorithms (EA) are rare or missing. Furthermore, there are different and contradictionary reports on the efficacy of symmetry breaking. By using a novel viewpoint, we offer a possible explanation for this issue. As a result, we show that a strategy which is invariant to the global optimum can only be successfull on certain problems, whereas it must fail to improve the global convergence on others. We introduce the \\emph{Minimum Global Optimum Proximity} principle as a generalized and adaptive strategy to symmetry breaking, which depends on the location of the global optimum. We apply the...

  19. Symmetry breaking in non conservative systems

    CERN Document Server

    Martínez-Pérez, N E

    2016-01-01

    We apply Noether's theorem to show how the invariances of conservative systems are broken for nonconservative systems, in the variational formulation of Galley. This formulation considers a conservative action, extended by the inclusion of a time reversed sector and a nonconservative generalized potential. We assume that this potential is invariant under the symmetries of the initial conservative system. The breaking occurs because the time reversed sector requires inverse symmetry transformations, under which the nonconservative potential is not invariant. The resulting violation of the conservation laws is consistent with the equations of motion. We generalize this formulation for fermionic and sypersymmetric systems. In the case of a supersymmetric oscillator, the effect of damping is that the bosonic and fermionic components become different frequencies. Considering that initially the nonconservative action is invariant under supersymmetry, and that the breaking is associated to an instability, this resul...

  20. Dynamics of Symmetry Breaking and Tachyonic Preheating

    CERN Document Server

    Felder, G; Greene, P B; Kofman, L A; Linde, Andrei D; Tkachev, Igor I; Felder, Gary; Garcia-Bellido, Juan; Greene, Patrick B.; Kofman, Lev; Linde, Andrei; Tkachev, Igor

    2001-01-01

    We reconsider the old problem of the dynamics of spontaneous symmetry breaking using 3d lattice simulations, and develop a theory of tachyonic preheating, which occurs due to the spinodal instability of the scalar field. Tachyonic preheating is so efficient that symmetry breaking typically completes within a single oscillation of the field distribution as it rolls towards the minimum of its effective potential. As an application of this theory we consider preheating in the hybrid inflation scenario, including SUSY-motivated F-term and D-term inflationary models. We show that preheating in hybrid inflation is typically tachyonic and the stage of oscillations of a homogeneous component of the scalar fields driving inflation ends after a single oscillation. Our results may also be relevant for the theory of the formation of disoriented chiral condensates in heavy ion collisions.

  1. Put the breaks on wastewater emulsions

    Energy Technology Data Exchange (ETDEWEB)

    Alther, G. [Biomin, Inc., Ferndale, MI (United States)

    1998-03-01

    Emulsions in wastewater pose a vexing problem for facilities attempting to recycle water and stay in compliance with permissible discharge limits. But the challenges are no less formidable for routine maintenance. The removal of emulsions, a major constituent of which are fats, oils and greases (FOGs), is necessary to prevent them from depositing on pipes and fouling filtration media. Some of the havoc caused by emulsions can be avoided if emulsions are broken and removed from wastewater streams. Successful emulsion breaking requires a basic understanding of emulsions, their chemical composition, and the technologies required to remove them from water. The paper discusses emulsion basics and emulsion breaking, including counteracting emulsions, testing procedures, physical separation methods, removal strategies, bentonite-based powders, and post-polishing.

  2. Metastable spontaneous breaking of N=2 supersymmetry

    Energy Technology Data Exchange (ETDEWEB)

    Légeret, Benoît; Scrucca, Claudio A., E-mail: claudio.scrucca@epfl.ch; Smyth, Paul

    2013-05-24

    We show that contrary to the common lore it is possible to spontaneously break N=2 supersymmetry even in simple theories without constant Fayet–Iliopoulos terms. We consider the most general N=2 supersymmetric theory with one hypermultiplet and one vector multiplet without Fayet–Iliopoulos terms, and show that metastable supersymmetry breaking vacua can arise if both the hyper-Kähler and the special-Kähler geometries are suitably curved. We then also prove that while all the scalars can be massive, the lightest one is always lighter than the vector boson. Finally, we argue that these results also directly imply that metastable de Sitter vacua can exist in N=2 supergravity theories with Abelian gaugings and no Fayet–Iliopoulos terms, again contrary to common lore, at least if the cosmological constant is sufficiently large.

  3. Cosmology of biased discrete symmetry breaking

    Science.gov (United States)

    Gelmini, Graciela B.; Gleiser, Marcelo; Kolb, Edward W.

    1988-01-01

    The cosmological consequences of spontaneous breaking of an approximate discrete symmetry are studied. The breaking leads to formation of proto-domains of false and true vacuum separated by domain walls of thickness determined by the mass scale of the model. The cosmological evolution of the walls is extremely sensitive to the magnitude of the biasing; several scenarios are possible, depending on the interplay between the surface tension on the walls and the volume pressure from the biasing. Walls may disappear almost immediately after they form, or may live long enough to dominate the energy density of the Universe and cause power-law inflation. Limits are obtained on the biasing that characterizes each possible scenario.

  4. Rotation Breaking Induced by ELMs on EAST

    DEFF Research Database (Denmark)

    Xiong, H.; Xu, G.; Sun, Y.

    Spontaneous rotation has been observed in LHCD H-mode plasmas with type III ELMs (edge localized modes) on EAST, and it revealed that type III ELMs can induce the loss of both core and edge toroidal rotation. Here we work on the breaking mechanism during the ELMs. Several large tokamaks have...... discovered ELMs' filamentary structures. It revealed that the ELMs are filamentary perturbations of positive density formed along the local field lines close to the LCFS. Currents flowing in the filaments induce magnetic perturbations, which break symmetry of magnetic field strength and lead to deformation...... of magnetic surface, thus generate NTV (neoclassical toroidal viscosity) torque that affects toroidal rotation. We adopt 1cm maximum edge magnetic surface displacement from experimental observation, and our calculation shows that the edge torque is about 0.35 N/m2, and the core very small. The expected...

  5. Surface tension effects in breaking wave noise.

    Science.gov (United States)

    Deane, Grant B

    2012-08-01

    The role of surface active materials in the sea surface microlayer on the production of underwater noise by breaking waves is considered. Wave noise is assumed to be generated by bubbles formed within actively breaking whitecaps, driven into breathing mode oscillation at the moment of their formation by non-equilibrium, surface tension forces. Two significant effects associated with surface tension are identified-a reduction in low frequency noise (bubbles by fluid turbulence within the whitecap and a reduction in overall noise level due to a decrease in the excitation amplitude of bubbles associated with reduced surface tension. The impact of the latter effect on the accuracy of Weather Observations Through Ambient Noise estimates of wind speed is assessed and generally found to be less than ±1 m s(-1) for wind speeds less than 10 m s(-1) and typical values of surfactant film pressure within sea slicks.

  6. Symmetry-breaking oscillations in membrane optomechanics

    Science.gov (United States)

    Wurl, C.; Alvermann, A.; Fehske, H.

    2016-12-01

    We study the classical dynamics of a membrane inside a cavity in the situation where this optomechanical system possesses a reflection symmetry. Symmetry breaking occurs through supercritical and subcritical pitchfork bifurcations of the static fixed-point solutions. Both bifurcations can be observed through variation of the laser-cavity detuning, which gives rise to a boomerang-like fixed-point pattern with hysteresis. The symmetry-breaking fixed points evolve into self-sustained oscillations when the laser intensity is increased. In addition to the analysis of the accompanying Hopf bifurcations we describe these oscillations at finite amplitudes with an ansatz that fully accounts for the frequency shift relative to the natural membrane frequency. We complete our study by following the route to chaos for the membrane dynamics.

  7. Supersymmetry breaking made easy, viable, and generic

    CERN Document Server

    Murayama, Hitoshi

    2007-01-01

    The kind of supersymmetry that can be discovered at the LHC must be very much flavor-blind, which used to require very special intelligently designed models of supersymmetry breaking. This led to the pessimism for some in the community that it is not likely for the LHC to discover supersymmetry. I point out that this is not so, because a garden-variety supersymmetric theories actually can do this job.

  8. Wave breaking in tapered holey fibers

    Institute of Scientific and Technical Information of China (English)

    Shuguang Li; Lei Zhang; Bo Fu; Yi Zheng; Ying Han; Xingtao Zhao

    2011-01-01

    We numerically study the propagation of 1-ps laser pulse in three tapered holey fibers (THFs). The curvature indices of the concave, linear, and convex tapers are 2.0, 1.0, and 0.5, respectively. The central wavelength, located in the normal dispersion regime, is 800 nm. The nonlinear coefficient of the THFs increases from the initial 0.095 m-1· W-1 to the final 0.349 m-l·W-1. Wave breaking accompanied by oscillatory structures occurs near pulse edges, and sidelobes appear in the pulse spectrum. With the increase in propagation distance z, the pulse shape becomes broader and the pulse spectrum flattens. A concave THF is advantageous to the generation of wave breaking and enables easier achievement of super fiat spectra at short lengths.%@@ We numerically study the propagation of 1-ps laser pulse in three tapered holey fibers (THFs).The curvature indices of the concave, linear, and convex tapers are 2.0, 1.0, and 0.5, respectively.The central wavelength, located in the normal dispersion regime, is 800 nm.The nonlinear coefficient of the THFs increases from the initial 0.095 m-1.W-1 to the final 0.349 m-1.W-1.Wave breaking accompanied by oscillatory structures occurs near pulse edges, and sidelobes appear in the pulse spectrum.With the increase in propagation distance z, the pulse shape becomes broader and the pulse spectrum flattens.A concave THF is advantageous to the generation of wave breaking and enables easier achievement of super flat spectra at short lengths.

  9. Dynamical symmetry breaking in quantum field theories

    CERN Document Server

    Miransky, Vladimir A

    1993-01-01

    The phenomenon of dynamical symmetry breaking (DSB) in quantum field theory is discussed in a detailed and comprehensive way. The deep connection between this phenomenon in condensed matter physics and particle physics is emphasized. The realizations of DSB in such realistic theories as quantum chromodynamics and electroweak theory are considered. Issues intimately connected with DSB such as critical phenomenona and effective lagrangian approach are also discussed.

  10. Music and Video Gaming during Breaks

    OpenAIRE

    Liu, Shuyan; Schad, Daniel J; Kuschpel, Maxim S.; Rapp, Michael A.; Heinz, Andreas

    2016-01-01

    Different systems for habitual versus goal-directed control are thought to underlie human decision-making. Working memory is known to shape these decision-making systems and their interplay, and is known to support goal-directed decision making even under stress. Here, we investigated if and how decision systems are differentially influenced by breaks filled with diverse everyday life activities known to modulate working memory performance. We used a within-subject design where young adult...

  11. Avoiding Spurious Breaks in Binned Luminosity Functions

    Science.gov (United States)

    Cara, M.; Lister, M. L.

    2008-10-01

    We show that using either the method of Page & Carrera or the well-known 1/Va method to construct the binned luminosity function (LF) of a flux limited sample of active galactic nuclei (AGNs) can produce an artificial flattening (or steepening in the case of negative evolution) of the binned LF for bins intersected by the flux cutoff of the sample. This effect is more pronounced for samples with steep and strongly evolving parent LFs but is still present even for non-evolving LFs. As a result of this distortion of the true LF, fitting a model LF to binned data may lead to errors in the estimation of the parameters and may even prompt the erroneous use of broken power-law functions. We compute the expected positions of apparent breaks in the binned LF. We show that these spurious breaks in the binned LFs can be avoided if the binning is done in the flux-redshift plane instead of the typically used luminosity-redshift plane. Binning in the flux-redshift plane can be used in conjunction with the binning in the luminosity-redshift plane to test for real breaks in the binned LFs and to identify the features that are the result of binning biases. We illustrate this effect for most typical forms of luminosity dependence and redshift evolution and show how the proposed method helps address this problem. We also apply this method to the MOJAVE AGN sample and show that it eliminates an apparent break in the binned LF.

  12. Continental underplating after slab break-off

    Science.gov (United States)

    Magni, V.; Allen, M. B.; van Hunen, J.; Bouilhol, P.

    2017-09-01

    We present three-dimensional numerical models to investigate the dynamics of continental collision, and in particular what happens to the subducted continental lithosphere after oceanic slab break-off. We find that in some scenarios the subducting continental lithosphere underthrusts the overriding plate not immediately after it enters the trench, but after oceanic slab break-off. In this case, the continental plate first subducts with a steep angle and then, after the slab breaks off at depth, it rises back towards the surface and flattens below the overriding plate, forming a thick horizontal layer of continental crust that extends for about 200 km beyond the suture. This type of behaviour depends on the width of the oceanic plate marginal to the collision zone: wide oceanic margins promote continental underplating and marginal back-arc basins; narrow margins do not show such underplating unless a far field force is applied. Our models show that, as the subducted continental lithosphere rises, the mantle wedge progressively migrates away from the suture and the continental crust heats up, reaching temperatures >900 °C. This heating might lead to crustal melting, and resultant magmatism. We observe a sharp peak in the overriding plate rock uplift right after the occurrence of slab break-off. Afterwards, during underplating, the maximum rock uplift is smaller, but the affected area is much wider (up to 350 km). These results can be used to explain the dynamics that led to the present-day crustal configuration of the India-Eurasia collision zone and its consequences for the regional tectonic and magmatic evolution.

  13. Breaking democracy with non renormalizable mass terms

    CERN Document Server

    Silva-Marcos, Joaquim I

    2001-01-01

    The exact democratic structure for the quark mass matrix, resulting from the action of the family symmetry group $A_{3L}\\times A_{3R}$, is broken by the vacuum expectation values of heavy singlet fields appearing in non renormalizable dimension 6 operators. Within this specific context of breaking of the family symmetry we formulate a very simple ansatz which leads to correct quark masses and mixings.

  14. Adjoint string breaking in the pseudoparticle approach

    CERN Document Server

    Szasz, Christian

    2008-01-01

    We apply the pseudoparticle approach to SU(2) Yang-Mills theory and perform a detailed study of the potential between two static charges for various representations. Whereas for charges in the fundamental representation we find a linearly rising confining potential, we clearly observe string breaking, when considering charges in the adjoint representation. We also demonstrate Casimir scaling and compute gluelump masses for different spin and parity. Numerical results are in qualitative agreement with lattice results.

  15. Microwave-assisted rock breaking modelling and application

    CSIR Research Space (South Africa)

    Monchusi, B

    2012-10-01

    Full Text Available As part of the ongoing development of novel mining methods, the CSIR has developed alternative methods to break rocks. In this case, we show the application of microwave energy to break narrow tabular ore bodies....

  16. Spontaneous chiral symmetry breaking in the Tayler instability

    CERN Document Server

    Del Sordo, Fabio; Brandenburg, Axel; Mitra, Dhrubaditya

    2011-01-01

    The chiral symmetry breaking properties of the Tayler instability are discussed. Effective amplitude equations are determined in one case. This model has three free parameters that are determined numerically. Comparison with chiral symmetry breaking in biochemistry is made.

  17. Dormancy Breaking in Ormosia arborea Seeds

    Directory of Open Access Journals (Sweden)

    Edilma Pereira Gonçalves

    2011-01-01

    Full Text Available Ormosia arborea is a tree species planted in urban areas and used to restore degraded areas. Its seeds are dormant and propagation is difficult. This study compares different dormancy breaking methods and physiological seed quality and seedling production. The seeds were germinated in sand in the laboratory of the Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil. The following dormancy breaking treatments were applied: control (intact seeds, 100°C water immersion; boiling water immersion followed by 24 hours of soaking; scarification with number 100 and number 50 sandpaper opposite from root emergence; sulfuric acid immersion for 1 hour, 50, 45, and 30 minutes. Seed immersion in 100°C and boiling water did not break the dormancy. The study species showed a greater vigor of seedling when its seeds were submitted to treatments associated with tegument rupturing by sandpaper or sulfuric acid. On the other hand, seed scarification with sulfuric acid for 1 hour, 50, 45, and 30 minutes or sandpaper favored seed germination and vigor.

  18. Enhanced breaking of heavy quark spin symmetry

    Directory of Open Access Journals (Sweden)

    Feng-Kun Guo

    2014-11-01

    Full Text Available Heavy quark spin symmetry is useful to make predictions on ratios of decay or production rates of systems involving heavy quarks. The breaking of spin symmetry is generally of the order of O(ΛQCD/mQ, with ΛQCD the scale of QCD and mQ the heavy quark mass. In this paper, we will show that a small S- and D-wave mixing in the wave function of the heavy quarkonium could induce a large breaking in the ratios of partial decay widths. As an example, we consider the decays of the ϒ(10860 into the χbJω (J=0,1,2, which were recently measured by the Belle Collaboration. These decays exhibit a huge breaking of the spin symmetry relation were the ϒ(10860 a pure 5S bottomonium state. We propose that this could be a consequence of a mixing of the S-wave and D-wave components in the ϒ(10860. Prediction on the ratio Γ(ϒ(10860→χb0ω/Γ(ϒ(10860→χb2ω is presented assuming that the decay of the D-wave component is dominated by the coupled-channel effects.

  19. A break in the obesity epidemic?

    DEFF Research Database (Denmark)

    Visscher, T L S; Heitmann, B L; Rissanen, A

    2015-01-01

    Recent epidemiologic papers are presenting prevalence data suggesting breaks and decreases in obesity rates. However, before concluding that the obesity epidemic is not increasing anymore, the validity of the presented data should be discussed more thoroughly. We had a closer look into the litera......, focusing on trends in waist circumference rather than BMI leads to a less optimistic conclusion: the public health problem of obesity is still increasing.International Journal of Obesity advance online publication, 22 July 2014; doi:10.1038/ijo.2014.98.......Recent epidemiologic papers are presenting prevalence data suggesting breaks and decreases in obesity rates. However, before concluding that the obesity epidemic is not increasing anymore, the validity of the presented data should be discussed more thoroughly. We had a closer look...... into the literature presented in recent reviews to address the major potential biases and distortions, and to develop insights about how to interpret the presented suggestions for a potential break in the obesity epidemic. Decreasing participation rates, the use of reported rather than measured data and small sample...

  20. Breaking bad news: a patient's perspective.

    Science.gov (United States)

    Dias, Lauren; Chabner, Bruce A; Lynch, Thomas J; Penson, Richard T

    2003-01-01

    Shortly before his death in 1995, Kenneth B. Schwartz, a cancer patient at Massachusetts General Hospital (MGH), founded The Kenneth B. Schwartz Center at MGH. The Schwartz Center is a nonprofit organization dedicated to supporting and advancing compassionate health care delivery that provides hope to the patient, support to caregivers, and encourages the healing process. The Center sponsors the Schwartz Center Rounds, a monthly multidisciplinary forum where caregivers reflect on important psychosocial issues faced by patients, their families, and their caregivers, and gain insight and support from fellow staff members. Clinicians in the field of oncology are unavoidably forced to break bad news. The Schwartz Center Rounds focuses on issues of communication between patients and their caregivers, one of the most difficult aspects of which is breaking bad news. The invited patient, a woman who had been living with a low-grade cancer for many years, spoke about her experiences both as a person living with cancer and as the daughter of a patient diagnosed with cancer. Her father's suicide, precipitated by being told his diagnosis, puts the horror of receiving bad news into stark relief. She provides a fascinating account of how she proactively adjusted to her diagnosis, and fought for optimal quality of life. This article discusses issues of support, abandonment, and how hope is conveyed, and reviews the literature that informs good clinical practice in breaking bad news.

  1. Healthy breaks: tasty tips for the under fives

    OpenAIRE

    Public Health Agency

    2014-01-01

    Today the Public Health Agency is launching a new resource pack designed to assist nursery schools and playgroups deliver a healthy breaks scheme.All nursery schools and playgroups in Northern Ireland will receive the pack - 'Healthy breaks for pre-school children' - which includes a poster and information leaflets for parents explaining why a healthy break is so important for pre-school children and some tips and ideas for healthy nutritious breaks.Judith Hanvey, Regional Food in Schools Co-...

  2. Dineutron formation and breaking in $^8$He

    CERN Document Server

    Kobayashi, Fumiharu

    2013-01-01

    We discuss the correlation of the spin-singlet two-neutron pair, the dineutron correlation, in the ground and excited $0^+$ states of $^8$He by using a method to describe the dineutron correlation in neutron-rich nuclei, the dineutron condensate wave function. The shell-model configuration and the dineutron configuration compete with each other in the ground state of $^8$He. We compare the ground state structure of $^8$He with that of $^6$He and suggest that the dineutron correlation is weaker in the ground state of $^8$He than $^6$He. We also suggest the possibility of the dineutron condensation in an excited $0^+$ state of $^8$He. In addition, we investigate the formation mechanism of the dineutron condensation in $^8$He by using a newly developed framework, $\\alpha$ and dineutron condensate wave function, and conclude that the attraction from the core is essential for the formation of the dineutron condensation.

  3. Pesticides in Ground Water

    DEFF Research Database (Denmark)

    Bjerg, Poul Løgstrup

    1996-01-01

    Review af: Jack E. Barbash & Elizabeth A. Resek (1996). Pesticides in Ground Water. Distribution trends and governing factors. Ann Arbor Press, Inc. Chelsea, Michigan. pp 588.......Review af: Jack E. Barbash & Elizabeth A. Resek (1996). Pesticides in Ground Water. Distribution trends and governing factors. Ann Arbor Press, Inc. Chelsea, Michigan. pp 588....

  4. Pesticides in Ground Water

    DEFF Research Database (Denmark)

    Bjerg, Poul Løgstrup

    1996-01-01

    Review af: Jack E. Barbash & Elizabeth A. Resek (1996). Pesticides in Ground Water. Distribution trends and governing factors. Ann Arbor Press, Inc. Chelsea, Michigan. pp 588.......Review af: Jack E. Barbash & Elizabeth A. Resek (1996). Pesticides in Ground Water. Distribution trends and governing factors. Ann Arbor Press, Inc. Chelsea, Michigan. pp 588....

  5. Communication, concepts and grounding.

    Science.gov (United States)

    van der Velde, Frank

    2015-02-01

    This article discusses the relation between communication and conceptual grounding. In the brain, neurons, circuits and brain areas are involved in the representation of a concept, grounding it in perception and action. In terms of grounding we can distinguish between communication within the brain and communication between humans or between humans and machines. In the first form of communication, a concept is activated by sensory input. Due to grounding, the information provided by this communication is not just determined by the sensory input but also by the outgoing connection structure of the conceptual representation, which is based on previous experiences and actions. The second form of communication, that between humans or between humans and machines, is influenced by the first form. In particular, a more successful interpersonal communication might require forms of situated cognition and interaction in which the entire representations of grounded concepts are involved.

  6. Stochastic ground motion simulation

    Science.gov (United States)

    Rezaeian, Sanaz; Xiaodan, Sun; Beer, Michael; Kougioumtzoglou, Ioannis A.; Patelli, Edoardo; Siu-Kui Au, Ivan

    2014-01-01

    Strong earthquake ground motion records are fundamental in engineering applications. Ground motion time series are used in response-history dynamic analysis of structural or geotechnical systems. In such analysis, the validity of predicted responses depends on the validity of the input excitations. Ground motion records are also used to develop ground motion prediction equations(GMPEs) for intensity measures such as spectral accelerations that are used in response-spectrum dynamic analysis. Despite the thousands of available strong ground motion records, there remains a shortage of records for large-magnitude earthquakes at short distances or in specific regions, as well as records that sample specific combinations of source, path, and site characteristics.

  7. Ground energy coupling

    Science.gov (United States)

    Metz, P. D.

    The feasibility of ground coupling for various heat pump systems was investigated. Analytical heat flow models were developed to approximate design ground coupling devices for use in solar heat pump space conditioning systems. A digital computer program called GROCS (GRound Coupled Systems) was written to model 3-dimensional underground heat flow in order to simulate the behavior of ground coupling experiments and to provide performance predictions which have been compared to experimental results. GROCS also has been integrated with TRNSYS. Soil thermal property and ground coupling device experiments are described. Buried tanks, serpentine earth coils in various configurations, lengths and depths, and sealed vertical wells are being investigated. An earth coil used to heat a house without use of resistance heating is described.

  8. NCI-supported facility to conduct cancer trials breaks ground in Puerto Rico

    Science.gov (United States)

    The Puerto Rican government has allocated $196 million dollars to build a 287,000 sq. ft., 96-bed, cancer hospital in San Juan. The new hospital, which will provide cancer treatment and conduct clinical trials, is the first of its kind in the Caribbean.

  9. Breaking Ground: A Study of Gestalt Therapy Theory and Holland's Theory of Vocational Choice.

    Science.gov (United States)

    Hartung, Paul J.

    In both Gestalt therapy and Holland's theory of vocational choice, person-environment interaction receives considerable emphasis. Gestalt therapy theory suggests that people make contact (that is, meet needs) through a characteristic style of interacting with the environment. Holland identifies six personality types in his theory and asserts that…

  10. Breaking New Ground with High Resolution Turn-By-Turn BPMs at the ESRF

    CERN Document Server

    Farvacque, L; Scheidt, K

    2001-01-01

    This High-Resolution, Turn-by-Turn BPM system is a low-cost extension to the existing BPM system, based on the RF-multiplexing concept, used for slow Closed-Orbit measurements. With this extension Beam Position measurements in both planes, at all (224) BPMs in the 844 m ESRF Storage Ring, for up to 2048 Orbit Turns with 1 μm resolution are performed. The data acquisition is synchronised to a single, flat 1 μs, transverse deflection kick to the 1μs beamfill in the 2.8μs revolution period. The high quality of this synchronisation, together with the good reproducibility of the deflection kick and the overall stability of the Closed Orbit beam allows to repeat the kick and acquisition in many cycles. The subsequent averaging of the data obtained in these cycles yields the 1um resolution. The latter allows lattice measurements with high precision such as the localisation of very small focussing errors and modulation in Beta values and phase advances. It also finds an unique ...

  11. Breaking ground: combining community service, critical thinking, and writing in a mental health clinical course.

    Science.gov (United States)

    Nardi, D; Schlotman, E; Siwinski-Hebel, S

    1997-04-01

    This article describes the experience of a team of nursing educators who, over the course of 2 years, redesigned the delivery of an undergraduate nursing clinical course to reflect the changing face of mental health care near the turn of this century. Case studies of student learning experiences show the value of nontraditional clinical settings such as homeless shelters to the professional growth and training of nursing students. Recommendations offer practical advice for combining nontraditional community-based clinical experiences with critical thinking exercises as key components of the mental health clinical course delivery.

  12. Breaking New Ground: The Case for Seed Libraries in the Academic Library

    Science.gov (United States)

    Ingalls, Dana

    2017-01-01

    Seed libraries are a relatively new innovation in the library field, offering seeds, gardening information, and the opportunity for community and ecological engagement to members. While they are increasingly popular in public libraries, they have not yet established a foothold in academic libraries. This paper defines the nature and role of seed…

  13. Breaking ground for psychological science: The U.S. Food and Drug Administration.

    Science.gov (United States)

    Fischhoff, Baruch

    2017-01-01

    The U.S. Food and Drug Administration (FDA) regulates products accounting for 20% of U.S. consumer spending. Many of its actions depend on assumptions about behavior. Will people heed food recall notices? Will they follow medication schedules? Will they have realistic expectations regarding the benefits and risks of new products? Over time, FDA has increasingly made psychology integral to its processes for answering such questions. That progress has come when windows of opportunity have found psychologists with science relevant to FDA's needs, FDA with staff who can translate that research into agency terms, and a regulatory arena that can accommodate behavioral evidence. These experiences suggest opportunities and obstacles for psychologists hoping to apply their science to the public good. (PsycINFO Database Record

  14. Nonlinear modes and symmetry breaking in rotating double-well potentials

    CERN Document Server

    Li, Yongyao; Malomed, Boris A

    2012-01-01

    We study modes trapped in a rotating ring carrying the self-focusing (SF) or defocusing (SDF) cubic nonlinearity and double-well potential $\\cos^{2}\\theta $, where $\\theta $ is the angular coordinate. The model, based on the nonlinear Schr\\"{o}dinger (NLS) equation in the rotating reference frame, describes the light propagation in a twisted pipe waveguide, as well as in other optical settings, and also a Bose-Einstein condensate (BEC)trapped in a torus and dragged by the rotating potential. In the SF and SDF regimes, five and four trapped modes of different symmetries are found, respectively. The shapes and stability of the modes, and transitions between them are studied in the first rotational Brillouin zone. In the SF regime, two symmetry-breaking transitions are found, of subcritical and supercritical types. In the SDF regime, an antisymmetry-breaking transition occurs. Ground-states are identified in both the SF and SDF systems.

  15. Effective Field Theory of Emergent Symmetry Breaking in Deformed Atomic Nuclei

    CERN Document Server

    Papenbrock, T

    2015-01-01

    Spontaneous symmetry breaking in non-relativistic quantum systems has previously been addressed in the framework of effective field theory. Low-lying excitations are constructed from Nambu-Goldstone modes using symmetry arguments only. We extend that approach to finite systems. The approach is very general. To be specific, however, we consider atomic nuclei with intrinsically deformed ground states. The emergent symmetry breaking in such systems requires the introduction of additional degrees of freedom on top of the Nambu-Goldstone modes. Symmetry arguments suffice to construct the low-lying states of the system. In deformed nuclei these are vibrational modes each of which serves as band head of a rotational band.

  16. The break of medical confidentiality for the benefit of public health: a controversial topic

    Directory of Open Access Journals (Sweden)

    Papageorgiou Ε.

    2013-10-01

    Full Text Available Aim: This paper refers to the decision made by the Greek Government to publish photographs and personal data of HIV positive sex workers on the grounds of protecting public health. Method: Initially, the law and theoretical background of medical confidentiality and its break were reviewed and then the conditions and data that led to the specific decision made by the Greek Authorities were investigated. Also the contribution of NGOs in the prevention of Public Health was studied. Conclusion: The survey showed that in this particular case the break of confidentiality was excessive and biased due to the origin and illegal activity of the women. A proper solution to the HIV/AIDS outbreak would be the intensification of prevention. In this sector, NGOs can and should play an active role considering that the primary care in Greece, especially during the economic crisis, shows organizational and operational weaknesses.

  17. Modification of AMD wave functions and application to the breaking of the N=20 magic number

    Energy Technology Data Exchange (ETDEWEB)

    Kimura, Masaaki; Horiuchi, Hisashi [Kyoto Univ. (Japan). Dept. of Physics

    2001-09-01

    By using the deformed Gaussian instead of the spherical one, we have modified the AMD (Antisymmetrized Molecular Dynamics) wave functions. The calculation results with this modified AMD shows the drastic improvement of the deformation properties of Mg isotopes. This improvement means that this new version of AMD can treat the deformation of mean field properly than before and the deformation of mean field is important in Mg isotopes. With this new version of AMD, we have also calculated 32Mg in which the breaking of magic number N=20 is experimentally known. In this nucleus, {beta}-energy surface is also drastically changed by the modification AMD wave function. Our results show that this nucleus is indeed deformed and neutron's 2p2h state is dominant in its ground state. This ground state reproduces the experimental data and shows the breaking of the magic number N=20 clearly. Additionally, near the ground state, there is also very interesting state which has neutron's 4p4h structure and shows parity violating density distribution and cluster-like nature. (author)

  18. The Stellar Populations and Evolution of Lyman Break Galaxies

    CERN Document Server

    Papovich, C; Ferguson, H C; Papovich, Casey; Dickinson, Mark; Ferguson, Henry C.

    2001-01-01

    Using deep near-IR and optical observations of the HDF-N from the HST NICMOS and WFPC2 and from the ground, we examine the spectral energy distributions (SEDs) of Lyman break galaxies (LBGs) at 2.0 < z < 3.5. The UV-to-optical rest-frame SEDs of the galaxies are much bluer than those of present-day spiral and elliptical galaxies, and are generally similar to those of local starburst galaxies with modest amounts of reddening. We use stellar population synthesis models to study the properties of the stars that dominate the light from LBGs. Under the assumption that the star-formation rate is continuous or decreasing with time, the best-fitting models provide a lower bound on the LBG mass estimates. LBGs with ``L*'' UV luminosities are estimated to have minimum stellar masses ~ 10^10 solar masses, or roughly 1/10th that of a present-day L* galaxy. By considering the effects of a second component of maximally-old stars, we set an upper bound on the stellar masses that is ~ 3-8 times the minimum estimate. We...

  19. Charge symmetry breaking in the A=4 hypernuclei

    CERN Document Server

    Gazda, Daniel

    2016-01-01

    Charge symmetry breaking (CSB) in the $\\Lambda$-nucleon strong interaction generates a charge dependence of $\\Lambda$ separation energies in mirror hypernuclei, which in the case of the $A=4$ mirror hypernuclei $0^+$ ground states is sizable, $\\Delta B^{J=0}_{\\Lambda}\\equiv B^{J=0}_{\\Lambda} (_{\\Lambda}^4{\\rm He})-B^{J=0}_{\\Lambda}(_{\\Lambda}^4{\\rm H})=230\\pm 90$~keV, and of opposite sign to that induced by the Coulomb repulsion in light hypernuclei. Recent {\\it ab initio} calculations of the (\\lamb{4}{H}, \\lamb{4}{He}) mirror hypernuclei $0^+_{\\rm g.s.}$ and $1^+_{\\rm exc}$ levels have demonstrated that a $\\Lambda - \\Sigma^0$ mixing CSB model due to Dalitz and von Hippel (1964) is capable of reproducing this large value of $\\Delta B^{J=0}_{\\Lambda}$. These calculations are discussed here with emphasis placed on the leading-order $\\chi$EFT hyperon-nucleon strong-interaction Bonn-J\\"{u}lich model used and the no-core shell-model calculational scheme applied. The role of one-pion exchange in producing sizable C...

  20. Spontaneous symmetry breaking in a split potential box

    CERN Document Server

    Shamriz, Elad; Malomed, Boris A

    2016-01-01

    We report results of the analysis of the spontaneous symmetry breaking (SSB) in the basic (actually, simplest) model which is capable to produce the SSB phenomenology in the one-dimensional setting. It is based on the Gross-Pitaevskii - nonlinear Schroedinger equation with the cubic self-attractive term and a double-well-potential built as an infinitely deep potential box split by a narrow (delta-functional) barrier. The barrier's strength, epsilon, is the single free parameter of the scaled form of the model. It may be implemented in atomic Bose-Einstein condensates and nonlinear optics. The SSB bifurcation of the symmetric ground state (GS) is predicted analytically in two limit cases, viz., for deep or weak splitting of the potential box by the barrier. For the generic case, a variational approximation (VA) is elaborated. The analytical findings are presented along with systematic numerical results. Stability of stationary states is studied through the calculation of eigenvalues for small perturbations, an...

  1. [Spontaneous and radiation-induced chromosome breaks].

    Science.gov (United States)

    Lebedeva, L I; Chubykin, V L

    1975-01-01

    It is shown by the study of the location of acentric fragments of chromosomes at metaphase and anaphase in the root cells of pea (cultivar "Capital"), in the cornea of rats (strain Wistar), in the bone marrow of mice (strain BALB), in the cultures of embryonic fibroblasts of mice (strain C57B1) and of embryonic human fibroblasts that some fragments are situated outside the equatorial plates, while others are situated within the plane of the equatorial plate. The fragments of the first type initiate mainly spontaneously, while the fragments of the second type are mainly induced by irradiation. These principles are observed in all the types of animal and plant cells studied. The location of the fragments observed in non-radiated cells could be explained if it be assumed, that all the chromosome breaks are realized before the prometaphase and by the beginning of the prometaphase the fragments are randomly distributed within the volume of the nucleus. At the prometaphase most fragments move from the equator to the pole of the cell and thus at the metaphase and anaphase are found to be located outside the equatorial plate. For the explanation of the observed ratio of the two types of fragments in an irradiated cell it is assumed that chromosome fragments resulting from breaks induced by irradiation are completely detached from chromosomes only after the beginning of the prometaphase. Possibly, the process of development of breaks is also not yet completed by this time, it continues and is completed at the metaphase, partially, at the anaphase of the mitosis.

  2. Cascading Multicriticality in Nonrelativistic Spontaneous Symmetry Breaking

    CERN Document Server

    Griffin, Tom; Horava, Petr; Yan, Ziqi

    2015-01-01

    Without Lorentz invariance, spontaneous global symmetry breaking can lead to multicritical Nambu-Goldstone modes with a higher-order low-energy dispersion $\\omega\\sim k^n$ ($n=2,3,\\ldots$), whose naturalness is protected by polynomial shift symmetries. Here we investigate the role of infrared divergences and the nonrelativistic generalization of the Coleman-Hohenberg-Mermin-Wagner (CHMW) theorem. We find novel cascading phenomena with large hierarchies between the scales at which the value of $n$ changes, leading to an evasion of the "no-go" consequences of the relativistic CHMW theorem.

  3. Breaking of Cooper pairs in 108Pd

    Science.gov (United States)

    Rahmatinejad, A.; Kakavand, T.; Razavi, R.

    2016-04-01

    In this paper, breaking of Cooper pairs in 108Pd is investigated within the canonical ensemble framework and the BCS model. Our results show an evidence of two phase transitions, which are related to neutron and proton systems. Also, with consideration of pairing interaction, the role of neutron and proton systems in entropy, spin cutoff parameter and as a result in the moment of inertia are investigated. The results show minor role for the proton system at low temperatures and approximately equal roles for both neutron and proton systems after the critical temperature. Good agreement was observed between obtained results and the experimental data.

  4. Breaking Barriers in Polymer Additive Manufacturing

    Energy Technology Data Exchange (ETDEWEB)

    Love, Lonnie J [ORNL; Duty, Chad E [ORNL; Post, Brian K [ORNL; Lind, Randall F [ORNL; Lloyd, Peter D [ORNL; Kunc, Vlastimil [ORNL; Peter, William H [ORNL; Blue, Craig A [ORNL

    2015-01-01

    Additive Manufacturing (AM) enables the creation of complex structures directly from a computer-aided design (CAD). There are limitations that prevent the technology from realizing its full potential. AM has been criticized for being slow and expensive with limited build size. Oak Ridge National Laboratory (ORNL) has developed a large scale AM system that improves upon each of these areas by more than an order of magnitude. The Big Area Additive Manufacturing (BAAM) system directly converts low cost pellets into a large, three-dimensional part at a rate exceeding 25 kg/h. By breaking these traditional barriers, it is possible for polymer AM to penetrate new manufacturing markets.

  5. On inflation, cosmological constant, and SUSY breaking

    CERN Document Server

    Linde, Andrei

    2016-01-01

    We consider a broad class of inflationary models of two unconstrained chiral superfields, the stabilizer $S$ and the inflaton $\\Phi$, which can describe inflationary models with nearly arbitrary potentials. These models include, in particular, the recently introduced theories of cosmological attractors, which provide an excellent fit to the latest Planck data. We show that by adding to the superpotential of the fields $S$ and $\\Phi$ a small term depending on a nilpotent chiral superfield $P$ one can break SUSY and introduce a small cosmological constant without affecting main predictions of the original inflationary scenario.

  6. String Breaking in Four Dimensional Lattice QCD

    CERN Document Server

    Duncan, A; Thacker, H

    2001-01-01

    Virtual quark pair screening leads to breaking of the string between fundamental representation quarks in QCD. For unquenched four dimensional lattice QCD, this (so far elusive) phenomenon is studied using the recently developed truncated determinant algorithm (TDA). The dynamical configurations were generated on an Athlon 650 MHz PC. Quark eigenmodes up to 420 MeV are included exactly in these TDA studies performed at low quark mass on large coarse (but O($a^2$) improved) lattices. A study of Wilson line correlators in Coulomb gauge extracted from an ensemble of 1000 two-flavor dynamical configurations reveals evidence for flattening of the string tension at distances R $\\geq$ approximately 1 fm.

  7. Tree Level Mediation of Supersymmetry Breaking

    Energy Technology Data Exchange (ETDEWEB)

    Nardecchia, Marco, E-mail: marco.nardecchia@sissa.it [SISSA/ISAS and INFN, I-34013 Trieste (Italy)

    2010-11-01

    We propose a new scheme in which supersymmetry breaking is communicated to the MSSM sfermions by GUT gauge interactions at the tree level. The (positive) contribution of MSSM fields to Str(M{sup 2}) is automatically compensated by a (negative) contribution from heavy fields. Sfermion masses are flavour universal, thus solving the supersymmetric flavour problem. In the simplest SO(10) embedding, the ratio of different sfermion masses is predicted and differs from mSugra and other schemes, thus making this framework testable at the LHC. Gaugino masses are generated at the loop level but enhanced by model dependent factors.

  8. Cosmological SUSY Breaking and the Pyramid Schemes

    CERN Document Server

    Banks, T

    2014-01-01

    I review the ideas of holographic space-time (HST), Cosmological SUSY breaking (CSB), and the Pyramid Schemes, which are the only known models of Tera-scale physics consistent with CSB, current particle data, and gauge coupling unification. There is considerable uncertainty in the estimate of the masses of supersymmetric partners of the standard model particles, but the model predicts that the gluino is probably out of reach of the LHC, squarks may be in reach, and the NLSP is a right handed slepton, which should be discovered soon.

  9. Cosmological SUSY breaking and the pyramid scheme

    Science.gov (United States)

    Banks, Tom

    2015-04-01

    I review the ideas of holographic spacetime (HST), cosmological SUSY breaking (CSB), and the Pyramid Schemes, which are the only known models of Tera-scale physics consistent with CSB, current particle data, and gauge coupling unification. There is considerable uncertainty in the estimate of the masses of supersymmetric partners of the Standard Model particles, but the model predicts that the gluino is probably out of reach of the LHC, squarks may be in reach, and the NLSP is a right-handed slepton, which should be discovered soon.

  10. Dynamical Supersymmetry Breaking Why and How

    CERN Document Server

    Poppitz, E R

    1998-01-01

    This theoretical review is intended to give non-theorists a flavor of the ideas driving the current efforts to experimentally find supersymmetry. We discuss the main reasons behind the expectation that supersymmetry may be "just around the corner" and may be discovered in the near future. We use simple quantum-mechanical examples to illustrate the concept---and the power---of supersymmetry, the possible ways to break supersymmetry, and the dynamical generation of small scales. We then describe how this theoretical machinery helps shape our perception of what physics beyond the electroweak scale might be.

  11. Chiral symmetry breaking in continuum QCD

    Science.gov (United States)

    Mitter, Mario; Pawlowski, Jan M.; Strodthoff, Nils

    2015-03-01

    We present a quantitative analysis of chiral symmetry breaking in two-flavor continuum QCD in the quenched limit. The theory is set up at perturbative momenta, where asymptotic freedom leads to precise results. The evolution of QCD towards the hadronic phase is achieved by means of dynamical hadronization in the nonperturbative functional renormalization group approach. We use a vertex expansion scheme based on gauge-invariant operators and discuss its convergence properties and the remaining systematic errors. In particular, we present results for the quark propagator, the full tensor structure and momentum dependence of the quark-gluon vertex, and the four-Fermi scatterings.

  12. Phenomenology of symmetry breaking from extra dimensions

    CERN Document Server

    Alfaro, J; Gavela-Legazpi, Maria Belen; Rigolin, S; Salvatori, M

    2007-01-01

    Motivated by the electroweak hierarchy problem, we study the symmetry breaking pattern induced by a background magnetic flux living on extra dimensions, with the four-dimensional scalar fields being gauge boson components in full space. For SU(N) and two compact, toroidal, extra dimensions, we determine analytically the possible field configurations of stable vacua and their symmetries. From the four-dimensional point of view, the system responds dynamically to the magnetic background by an infinite chain of vacuum expectation values so as to reach a stable vacuum. The equivalence between flux compactification and constant boundary conditions - either Scherk-Schwarz or twisted - is established.

  13. SU(3) flavour breaking and baryon structure

    Energy Technology Data Exchange (ETDEWEB)

    Cooke, A.N.; Horsley, R. [Edinburgh Univ. (United Kingdom). School of Physics and Astronomy; Nakamura, Y. [RIKEN Advanced Institute for Computational Science, Kobe, Hyogo (Japan); Pleiter, D. [Forschungszentrum Juelich GmbH (Germany). Juelich Supercomputing Centre (JSC); Regensburg Univ. (Germany). Institut fuer Theoretische Physik; Rakow, P.E.L. [Liverpool Univ. (United Kingdom). Theoretical Physics Div.; Shanahan, P.; Zanotti, J.M. [Adelaide Univ., SA (Australia). CSSM, School of Chemistry and Physics; Schierholz, G. [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Stueben, H. [Hamburg Univ. (Germany). Regionales Rechenzentrum; Collaboration: QCDSF/UKQCD Collaboration

    2013-11-15

    We present results from the QCDSF/UKQCD collaboration for hyperon electromagnetic form factors and axial charges obtained from simulations using N{sub f}=2+1 flavours of O(a)-improved Wilson fermions. We also consider matrix elements relevant for hyperon semileptonic decays. We find flavour-breaking effects in hyperon magnetic moments which are consistent with experiment, while our results for the connected quark spin content indicates that quarks contribute more to the spin of the {Xi} baryon than they do to the proton.

  14. De Sitter Uplift with Dynamical Susy Breaking

    CERN Document Server

    Retolaza, Ander

    2015-01-01

    We propose the use of D-brane realizations of Dynamical Supersymmetry Breaking (DSB) gauge sectors as sources of uplift in compactifications with moduli stabilization onto de Sitter vacua. This construction is fairly different from the introduction of anti D-branes, yet allows for tunably small contributions to the vacuum energy via their embedding into warped throats. The idea is explicitly exemplified by the embedding of the 1-family $SU(5)$ DSB model in a local warped throat with fluxes, which we discuss in detail in terms of orientifolds of dimer diagrams.

  15. De Sitter uplift with Dynamical Susy Breaking

    Science.gov (United States)

    Retolaza, Ander; Uranga, Angel

    2016-04-01

    We propose the use of D-brane realizations of Dynamical Supersymmetry Breaking (DSB) gauge sectors as sources of uplift in compactifications with moduli stabilization onto de Sitter vacua. This construction is fairly different from the introduction of anti D-branes, yet allows for tunably small contributions to the vacuum energy via their embedding into warped throats. The idea is explicitly exemplified by the embedding of the 1-family SU(5) DSB model in a local warped throat with fluxes, which we discuss in detail in terms of orientifolds of dimer diagrams.

  16. Electroweak symmetry breaking beyond the Standard Model

    Indian Academy of Sciences (India)

    Gautam Bhattacharyya

    2012-10-01

    In this paper, two key issues related to electroweak symmetry breaking are addressed. First, how fine-tuned different models are that trigger this phenomenon? Second, even if a light Higgs boson exists, does it have to be necessarily elementary? After a brief introduction, the fine-tuning aspects of the MSSM, NMSSM, generalized NMSSM and GMSB scenarios shall be reviewed, then the little Higgs, composite Higgs and the Higgsless models shall be compared. Finally, a broad overview will be given on where we stand at the end of 2011.

  17. Parity Breaking Medium and Squeeze Operators

    CERN Document Server

    Andrianov, A A; Soldati, R

    2016-01-01

    The transition between a Minkowski space region and a parity breaking medium domain is thoroughly discussed. The requirement of continuity of the field operator content across the separating boundary of the two domains leads to Bogolyubov transformations, squeezed pairs states and squeeze operators that turn out to generate a functional SU(2) algebra. According to this algebraic approach, the reflection and transmission probability amplitude across the separating boundary are computed. The suitable generalization of the well known Sauter-Schwinger-Nikishov formula to the emission or absorption of squeezed pairs out of the vacuum is obtained.

  18. Spontaneous symmetry breaking in a classical particle

    CERN Document Server

    Sánchez, L A; Sanchez, Luis Alberto; Mahecha, Jorge

    2003-01-01

    Due to the fact that only matter fields have phase, frequently is believed that the gauge principle can induce gauge fields only in quantum systems. But this is not necessary. This paper, of pedagogical scope, presents a classical system constituted by a particle in a classical potential, which is used as a model to illustrate the gauge principle and the spontaneous symmetry breaking. Those concepts appear in the study of second order phase transitions. Ferroelectricity, ferromagnetism, superconductivity, plasmons in a free electron gas, and the mass of vector bosons in the gauge field Yang-Mills theories, are some of the phenomena in which these transitions occur.

  19. Insight into Phenomena of Symmetry Breaking Bifurcation

    Institute of Scientific and Technical Information of China (English)

    FANG Tong; ZHANG Ying

    2008-01-01

    @@ We show that symmetry-breaking (SB) bifurcation is just a transition of different forms of symmetry, while still preserving system's symmetry. SB bifurcation always associates with a periodic saddle-node bifurcation, identifiable by a zero maximum of the top Lyapunov exponent of the system. In addition, we show a significant phase portrait of a newly born periodic saddle and its stable and unstable invariant manifolds, together with their neighbouring flow pattern of Poincaré mapping points just after the periodic saddle-node bifurcation, thus gaining an insight into the mechanism of SB bifurcation.

  20. A Bio-Postmodernism Analysis of Ceremony%论《典仪》中的后现代生态观

    Institute of Scientific and Technical Information of China (English)

    宋薇

    2012-01-01

    从生态后现代主义的视角解读莱斯利·马蒙·希尔科的代表作《典仪》,认为《典仪》传达出的有机整体观、女性文化象征的恢复、可持续发展等后现代生态观,不仅是对现代世界观的否定,更是恢复生态、救赎人类的救助策略。%Leslie Marmon Silko's Ceremony is analyzed adopting an ecological postmodern criticism.The viewpoints of universe,restoration of feminine cultural symbolism and ecological view of nature in this novel are not only the negation of modern worldview,but the rescue strategy of ecosystem restoration and the redemption of mankind.

  1. Enrico Fermi Awards Ceremony for Dr. Allen J. Bard and Dr. Andrew Sessler, February 2014 (Presentations, including remarks by Energy Secretary, Dr. Ernest Moniz)

    Energy Technology Data Exchange (ETDEWEB)

    Moniz, Ernest [U.S. Energy Secretary

    2014-02-03

    The Fermi Award is a Presidential award and is one of the oldest and most prestigious science and technology honors bestowed by the U.S. Government. On February 3, 2014 it was conferred upon two exceptional scientists. The first to be recognized is Dr. Allen J. Bard, 'for international leadership in electrochemical science and technology, for advances in photoelectrochemistry and photocatalytic materials, processes, and devices, and for discovery and development of electrochemical methods including electrogenerated chemiluminescence and scanning electrochemical microscopy.' The other honoree is Dr. Andrew Sessler, 'for advancing accelerators as powerful tools of scientific discovery, for visionary direction of the research enterprise focused on challenges in energy and the environment, and for championing outreach and freedom of scientific inquiry worldwide.' Dr. Patricia Dehmer opened the ceremony, and Dr. Ernest Moniz presented the awards.

  2. Ground State Spin Logic

    CERN Document Server

    Whitfield, J D; Biamonte, J D

    2012-01-01

    Designing and optimizing cost functions and energy landscapes is a problem encountered in many fields of science and engineering. These landscapes and cost functions can be embedded and annealed in experimentally controllable spin Hamiltonians. Using an approach based on group theory and symmetries, we examine the embedding of Boolean logic gates into the ground state subspace of such spin systems. We describe parameterized families of diagonal Hamiltonians and symmetry operations which preserve the ground state subspace encoding the truth tables of Boolean formulas. The ground state embeddings of adder circuits are used to illustrate how gates are combined and simplified using symmetry. Our work is relevant for experimental demonstrations of ground state embeddings found in both classical optimization as well as adiabatic quantum optimization.

  3. Spitzer Observations of OGLE-2015-BLG-1212 Reveal a New Path to Breaking Strong Microlens Degeneracies

    CERN Document Server

    Bozza, V; Udalski, A; Novati, S Calchi; Bond, I A; Han, C; Hundertmark, M; Poleski, R; Pawlak, M; Szymański, M K; Skowron, J; Mróz, P; Kozłowski, S; Wyrzykowski, Ł; Pietrukowicz, P; Soszyński, I; Ulaczyk, K; Beichman, C; Bryden, G; Carey, S; Fausnaugh, M; Gaudi, B S; Gould, A; Henderson, C B; Pogge, R W; Wibking, B; Yee, J C; Zhu, W; Abe, F; Asakura, Y; Barry, R K; Bennett, D P; Bhattacharya, A; Donachie, M; Freeman, M; Fukui, A; Hirao, Y; Inayama, K; Itow, Y; Koshimoto, N; Li, M C A; Ling, C H; Masuda, K; Matsubara, Y; Muraki, Y; Nagakane, M; Nishioka, T; Ohnishi, K; Oyokawa, H; Rattenbury, N; Saito, T; Sharan, A; Sullivan, D J; Sumi, T; Suzuki, D; Tristram, P J; Wakiyama, Y; Yonehara, A; Choi, J -Y; Park, H; Jung, Y K; Shin, I -G; Albrow, M D; Park, B -G; Kim, S -L; Lee, C -U; Cha, S -M; Kim, D -J; Lee, Y; Dominik, M; Jørgensen, U G; Andersen, M I; Bramich, D M; Burgdorf, M J; Ciceri, S; D'Ago, G; Evans, D F; Jaimes, R Figuera; Gu, S -H; Hinse, T C; Kains, N; Kerins, E; Korhonen, H; Kuffmeier, M; Mancini, L; Popovas, A; Rabus, M; Rahvar, S; Rasmussen, R T; Scarpetta, G; Skottfelt, J; Snodgrass, C; Southworth, J; Surdej, J; Unda-Sanzana, E; von Essen, C; Wang, Y -B; Wertz, O; Maoz, D; Friedmann, M; Kaspi, S

    2016-01-01

    Spitzer microlensing parallax observations of OGLE-2015-BLG-1212 decisively breaks a degeneracy between planetary and binary solutions that is somewhat ambiguous when only ground-based data are considered. Only eight viable models survive out of an initial set of 32 local minima in the parameter space. These models clearly indicate that the lens is a stellar binary system possibly located within the bulge of our Galaxy, ruling out the planetary alternative. We argue that several types of discrete degeneracies can be broken via such space-based parallax observations.

  4. Ground Vehicle Robotics Presentation

    Science.gov (United States)

    2012-08-14

    Mr. Jim Parker Associate Director Ground Vehicle Robotics Distribution Statement A. Approved for public release Report Documentation Page...Briefing 3. DATES COVERED 01-07-2012 to 01-08-2012 4. TITLE AND SUBTITLE Ground Vehicle Robotics Presentation 5a. CONTRACT NUMBER 5b. GRANT...ABSTRACT Provide Transition-Ready, Cost-Effective, and Innovative Robotics and Control System Solutions for Manned, Optionally-Manned, and Unmanned

  5. Chiral symmetry breaking, color superconductivity and quark matter phase diagram: a variational approach 12.38.Gc

    CERN Document Server

    Mishra, H

    2001-01-01

    We discuss in this note simultaneous existence of chiral symmetry breaking and color superconductivity at finite temperature and density in a Nambu-Jona-Lasinio type model. The methodology involves an explicit construction of a variational ground state and minimisation of the thermodynamic potential. There exist nontrivial solutions to the gap equations at finite densities with both quark-antiquark as well as diquark condensates for the 'ground' state. However, such a phase is thermodynamically unstable with the pressure being negative in this region. We also compute the equation of state, and obtain the structure of the phase diagram in the model.

  6. The Masses of Lyman Break Galaxies

    Science.gov (United States)

    Primack, Joel R.; Wechsler, Risa H.; Somerville, Rachel S.

    Data on galaxies at high redshift, identified by the Lyman-break photometric technique, can teach us about how galaxies form and evolve. The stellar masses and other properties of such Lyman break galaxies (LBGs) depend sensitively on the details of star formation. In this paper we consider three different star formation prescriptions, and use semi-analytic methods applied to the now-standard ΛCDM theory of hierarchical structure formation to show how these assumptions about star formation affect the predicted masses of the stars in these galaxies and the masses of the dark matter halos that host them. We find that, within the rather large uncertainties, recent estimates of the stellar masses of LBGs from multi-color photometry are consistent with the predictions of all three models. However, the estimated stellar masses are more consistent with the predictions of two of the models in which star formation is accelerated at high redshifts z ≳ 3, and of these models the one in which many of the LBGs are merger-driven starbursts is also more consistent with indications that many high redshift galaxies are gas rich. The clustering properties of LBGs have put some constraints on the masses of their host halos, but due to similarities in the halo occupation of the three models we consider and degeneracies between model parameters, current constraints are not yet sufficient to distinguish between realistic models.

  7. The Masses of Lyman Break Galaxies

    CERN Document Server

    Primack, Joel R; Somerville, R S; Primack, Joel R.; Wechsler, Risa H.; Somerville, Rachel S.

    2001-01-01

    Data on galaxies at high redshift, identified by the Lyman-break photometric technique, can teach us about how galaxies form and evolve. The stellar masses and other properties of such Lyman break galaxies (LBGs) depend sensitively on the details of star formation. In this paper we consider three different star formation prescriptions, and use semi-analytic methods applied to the now-standard $\\Lambda$CDM theory of hierarchical structure formation to show how these assumptions about star formation affect the predicted masses of the stars in these galaxies and the masses of the dark matter halos that host them. We find that, within the rather large uncertainties, recent estimates of the stellar masses of LBGs from multi-color photometry are consistent with the predictions of all three models. However, the estimated stellar masses are more consistent with the predictions of two of the models in which star formation is accelerated at high redshifts $z\\gsim3$, and of these models the one in which many of the LBGs...

  8. Avoiding spurious breaks in binned luminosity functions

    CERN Document Server

    Cara, Mihai

    2008-01-01

    We show that using either the method of Page & Carrera or the well-known $1/V_a$ method to construct the binned luminosity function (LF) of a flux limited sample of Active Galactic Nuclei (AGN) can produce an artificial flattening (or steepening in the case of negative evolution) of the binned LF for bins intersected by the flux cutoff of the sample. This effect is more pronounced for samples with steep and strongly evolving parent LFs but is still present even for non-evolving LFs. As a result of this distortion of the true LF, fitting a model LF to binned data may lead to errors in the estimation of the parameters and may even prompt the erroneous use of broken power law functions. We compute the expected positions of apparent breaks in the binned LF. We show that these spurious breaks in the binned LFs can be avoided if the binning is done in the flux--redshift plane instead of the typically used luminosity--redshift plane. Binning in the flux--redshift plane can be used in conjunction with the binning...

  9. Repair of DNA Double-Strand Breaks

    Science.gov (United States)

    Falk, Martin; Lukasova, Emilie; Kozubek, Stanislav

    The genetic information of cells continuously undergoes damage induced by intracellular processes including energy metabolism, DNA replication and transcription, and by environmental factors such as mutagenic chemicals and UV and ionizing radiation. This causes numerous DNA lesions, including double strand breaks (DSBs). Since cells cannot escape this damage or normally function with a damaged genome, several DNA repair mechanisms have evolved. Although most "single-stranded" DNA lesions are rapidly removed from DNA without permanent damage, DSBs completely break the DNA molecule, presenting a real challenge for repair mechanisms, with the highest risk among DNA lesions of incorrect repair. Hence, DSBs can have serious consequences for human health. Therefore, in this chapter, we will refer only to this type of DNA damage. In addition to the biochemical aspects of DSB repair, which have been extensively studied over a long period of time, the spatio-temporal organization of DSB induction and repair, the importance of which was recognized only recently, will be considered in terms of current knowledge and remaining questions.

  10. Break-Induced Replication and Genome Stability

    Directory of Open Access Journals (Sweden)

    Anna Malkova

    2012-10-01

    Full Text Available Genetic instabilities, including mutations and chromosomal rearrangements, lead to cancer and other diseases in humans and play an important role in evolution. A frequent cause of genetic instabilities is double-strand DNA breaks (DSBs, which may arise from a wide range of exogeneous and endogeneous cellular factors. Although the repair of DSBs is required, some repair pathways are dangerous because they may destabilize the genome. One such pathway, break-induced replication (BIR, is the mechanism for repairing DSBs that possesses only one repairable end. This situation commonly arises as a result of eroded telomeres or collapsed replication forks. Although BIR plays a positive role in repairing DSBs, it can alternatively be a dangerous source of several types of genetic instabilities, including loss of heterozygosity, telomere maintenance in the absence of telomerase, and non-reciprocal translocations. Also, mutation rates in BIR are about 1000 times higher as compared to normal DNA replication. In addition, micro-homology-mediated BIR (MMBIR, which is a mechanism related to BIR, can generate copy-number variations (CNVs as well as various complex chromosomal rearrangements. Overall, activation of BIR may contribute to genomic destabilization resulting in substantial biological consequences including those affecting human health.

  11. Chip breaking system for automated machine tool

    Science.gov (United States)

    Arehart, Theodore A.; Carey, Donald O.

    1987-01-01

    The invention is a rotary selectively directional valve assembly for use in an automated turret lathe for directing a stream of high pressure liquid machining coolant to the interface of a machine tool and workpiece for breaking up ribbon-shaped chips during the formation thereof so as to inhibit scratching or other marring of the machined surfaces by these ribbon-shaped chips. The valve assembly is provided by a manifold arrangement having a plurality of circumferentially spaced apart ports each coupled to a machine tool. The manifold is rotatable with the turret when the turret is positioned for alignment of a machine tool in a machining relationship with the workpiece. The manifold is connected to a non-rotational header having a single passageway therethrough which conveys the high pressure coolant to only the port in the manifold which is in registry with the tool disposed in a working relationship with the workpiece. To position the machine tools the turret is rotated and one of the tools is placed in a material-removing relationship of the workpiece. The passageway in the header and one of the ports in the manifold arrangement are then automatically aligned to supply the machining coolant to the machine tool workpiece interface for breaking up of the chips as well as cooling the tool and workpiece during the machining operation.

  12. Generalized Soft Breaking Leverage for the MSSM

    CERN Document Server

    Ün, Cem Salih; Kerman, Saime; Solmaz, Levent

    2014-01-01

    In this work we study implications of additional non-holomorphic soft breaking terms (mu', A'_t, A'_b and A'_tau$) on the MSSM phenomenology. By respecting the existing bounds on the mass measurements and restrictions coming from certain B-decays, we probe reactions of the MSSM to these additional soft breaking terms. We provide examples in which some slightly excluded solutions of the MSSM can be made to be consistent with the current experimental results. During this, even after applying additional fine-tuning constraints the non-holomorphic terms are allowed to be as large as hundreds of GeV. Such terms prove that they are capable of enriching the phenomenology and varying the mass spectra of the MSSM heavily, with a reasonable amount of fine-tuning. We observe that higgsinos, the lightest stop, the heavy Higgs boson states A, H, charged H, sbottom and stau exhibit the highest sensitivity to the new terms. We also show how the light stop can become nearly degenerate with top quark using these non-holomorph...

  13. Large-field inflation and supersymmetry breaking

    Energy Technology Data Exchange (ETDEWEB)

    Buchmueller, Wilfried; Wieck, Clemens [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Dudas, Emilian; Heurtier, Lucien [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Ecole Polytechnique, Palaiseau (France). CPht

    2014-07-15

    Large-field inflation is an interesting and predictive scenario. Its non-trivial embedding in supergravity was intensively studied in the recent literature, whereas its interplay with supersymmetry breaking has been less thoroughly investigated. We consider the minimal viable model of chaotic inflation in supergravity containing a stabilizer field, and add a Polonyi field. Furthermore, we study two possible extensions of the minimal setup. We show that there are various constraints: first of all, it is very hard to couple an O'Raifeartaigh sector with the inflaton sector, the simplest viable option being to couple them only through gravity. Second, even in the simplest model the gravitino mass is bounded from above parametrically by the inflaton mass. Therefore, high-scale supersymmetry breaking is hard to implement in a chaotic inflation setup. As a separate comment we analyze the simplest chaotic inflation construction without a stabilizer field, together with a supersymmetrically stabilized Kaehler modulus. Without a modulus, the potential of such a model is unbounded from below. We show that a heavy modulus cannot solve this problem.

  14. Chiral Gauge Dynamics and Dynamical Supersymmetry Breaking

    Energy Technology Data Exchange (ETDEWEB)

    Poppitz, Erich; /Toronto U.; Unsal, Mithat; /SLAC /Stanford U.

    2009-05-07

    We study the dynamics of a chiral SU(2) gauge theory with a Weyl fermion in the I = 3/2 representation and of its supersymmetric generalization. In the former, we find a new and exotic mechanism of confinement, induced by topological excitations that we refer to as magnetic quintets. The supersymmetric version was examined earlier in the context of dynamical supersymmetry breaking by Intriligator, Seiberg, and Shenker, who showed that if this gauge theory confines at the origin of moduli space, one may break supersymmetry by adding a tree level superpotential. We examine the dynamics by deforming the theory on S{sup 1} x R{sup 3}, and show that the infrared behavior of this theory is an interacting CFT at small S{sup 1}. We argue that this continues to hold at large S{sup 1}, and if so, that supersymmetry must remain unbroken. Our methods also provide the microscopic origin of various superpotentials in SQCD on S{sup 1} x R{sup 3}--which were previously obtained by using symmetry and holomorphy--and resolve a long standing interpretational puzzle concerning a flux operator discovered by Affleck, Harvey, and Witten. It is generated by a topological excitation, a 'magnetic bion', whose stability is due to fermion pair exchange between its constituents. We also briefly comment on composite monopole operators as leading effects in two dimensional antiferromagnets.

  15. Chiral symmetry breaking, instantons, and monopoles

    CERN Document Server

    Di Giacomo, Adriano

    2015-01-01

    The purpose of this study is to show that monopoles induce the chiral symmetry breaking. In order to indicate the evidence, we add one pair of monopoles with magnetic charges to the quenched SU(3) configurations by a monopole creation operator, and investigate the propaties of the chiral symmetry breaking using the Overlap fermion. We show that instantons are created by the monopoles. The pseudoscalar meson mass and decay constant are computed from the correlation functions, and the renormalization constant $Z_{S}$ is determined by the non perturbative method. The renormalization group invariant chiral condensate in $\\overline{\\mbox{MS}}$-scheme at 2 [GeV] is evaluated by the Gell-Mann-Oakes-Renner formula, and the random matrix theory. Finally, we estimate the renormalization group invariant quark masses $\\bar{m} = (m_{u} + m_{d})/2$, and $m_{s}$ in $\\overline{\\mbox{MS}}$-scheme at 2 [GeV]. The preliminary results indicate that the chiral condensate decreases and the quark masses become slightly heavy by inc...

  16. Golden Probe of Electroweak Symmetry Breaking

    Science.gov (United States)

    Chen, Yi; Lykken, Joe; Spiropulu, Maria; Stolarski, Daniel; Vega-Morales, Roberto

    2016-12-01

    The ratio of the Higgs couplings to W W and Z Z pairs, λW Z, is a fundamental parameter in electroweak symmetry breaking as well as a measure of the (approximate) custodial symmetry possessed by the gauge boson mass matrix. We show that Higgs decays to four leptons are sensitive, via tree level or one-loop interference effects, to both the magnitude and, in particular, overall sign of λW Z. Determining this sign requires interference effects, as it is nearly impossible to measure with rate information. Furthermore, simply determining the sign effectively establishes the custodial representation of the Higgs boson. We find that h →4 ℓ (4 ℓ≡2 e 2 μ , 4 e , 4 μ ) decays have excellent prospects of directly establishing the overall sign at a high luminosity 13 TeV LHC. We also examine the ultimate LHC sensitivity in h →4 ℓ to the magnitude of λW Z. Our results are independent of other measurements of the Higgs boson couplings and, in particular, largely free of assumptions about the top quark Yukawa couplings which also enter at one loop. This makes h →4 ℓ a unique and independent probe of electroweak symmetry breaking and custodial symmetry.

  17. D-branes, Supersymmetry Breaking, and Neutrinos

    CERN Document Server

    Seo, Jihye

    2010-01-01

    This thesis studies meta- and exactly stable supersymmetry breaking mechanisms in heterotic and type IIB string theories and constructs an F-theory Grand Unified Theory model for neutrino physics in which neutrino mass is determined by the supersymmetry breaking mechanism. Focussing attention on heterotic string theory compactified on a 4-torus, stability of non-supersymmetric states is studied. A non-supersymmetric state with robust stability is constructed, and its exact stability is proven in a large region of moduli space of T^4 against all the possible decay mechanisms allowed by charge conservation. Using string-string duality, the results are interpreted in terms of Dirichlet-branes in type IIA string theory compactified on an orbifold limit of a K3 surface. In type IIB string theory, metastable and exactly stable non-supersymmetric systems are constructed using D-branes and Calabi-Yau geometry. Branes and anti-branes wrap rigid and separate 2-spheres inside a non-compact Calabi-Yau three-fold: supersy...

  18. Retinal breaks due to intravitreal ocriplasmin

    Directory of Open Access Journals (Sweden)

    Silva RA

    2014-08-01

    Full Text Available Ruwan A Silva, Darius M Moshfeghi, Theodore Leng Byers Eye Institute at Stanford, Stanford University School of Medicine, Palo Alto, CA, USA Abstract: Ocriplasmin represents a new treatment option for numerous vitreoretinopathies involving an abnormal vitreomacular interface. While the drug may circumvent the traditional risks of surgical treatment, pharmacologic vitreolysis is not devoid of risk itself. This report presents two cases, one of vitreomacular traction syndrome and the other of a full-thickness macular hole, both of which were treated with an intravitreal injection of ocriplasmin. Notably, in both cases, vitreomacular traction of the macula appears to have been alleviated; however, failure to completely relieve vitreoretinal traction from the peripheral retina generated retinal breaks with one patient eventually developing a macula-involving retinal detachment. Thus, even in instances of ‘successful’ pharmacologic treatment of vitreomacular traction, continued follow-up evaluation is essential. Keywords: posterior vitreous detachment, retinal detachment, vitreomacular traction, ocriplasmin, retinal break, macular hole, laser retinopexy

  19. Ground Enterprise Management System Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Emergent Space Technologies Inc. proposes to develop the Ground Enterprise Management System (GEMS) for spacecraft ground systems. GEMS will provide situational...

  20. Breaking and Characteristics of Ganoderma Lucidum Spores by High Speed Entrifugal Shearing Pulverizer

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    The spores of Ganoderma lucidum were ground and broken to ultrafine particles by high speed centrifugal shearing(HSCS) pulverizer. The characteristics of Ganoderma lucidum spores were analyzed by scanning electron microscope (SEM), Fourier transform infrared spectrophotometry (FTIR). Ultraviolet-visible pectrophotometer was used to determine the extraction ratio of aqueous solubility polysaccharide between the raw and broken spores. The immunological function on the mice before and after the breaking of spores was investigated. The experimental results show that after being ground, the sporoderm-broken ratio reachs 100%,the original active ingredients of ganoderma lucidum spores do not change, and the extraction ratio of aqueous solubility polysaccharide is greatly increased by 40.08%. The broken spores show much higher immunological activity comparing with original spores of Ganoderma lucidum.

  1. Regional ground deformation and its controlling measures in China

    Science.gov (United States)

    Zhou, Zhifang; Zhu, Haisheng; Huang, Yong

    2006-12-01

    With the development of construction of China Cities, there exist a lot of environmental geological problems involved in the geofracture, land subsidence, collapse, landslide, devolution, mudrock flow, floating sand, piping and soft ground deformation. Of big cities whose population is over one million in China, about 30 cities appears the land subsidence region. Other cities locate in the regions of collapse yellow earth or expand soil of strong swell-shrink charasteristic, soft ground and karst. In the paper, the cause and hazard of regionality ground deformation is summed up. The causes of regional land deformation caused by the natural geological effect and activities of human being are analyzed. According to the length of deformation course and endanger of society, economy and life, land deformation involves three types, that is, the delay, rapid and break land deformation. And the concrete countermeasure and method are provided.

  2. Reinventing Grounded Theory: Some Questions about Theory, Ground and Discovery

    Science.gov (United States)

    Thomas, Gary; James, David

    2006-01-01

    Grounded theory's popularity persists after three decades of broad-ranging critique. In this article three problematic notions are discussed--"theory," "ground" and "discovery"--which linger in the continuing use and development of grounded theory procedures. It is argued that far from providing the epistemic security promised by grounded theory,…

  3. Symmetry Breaking in MILP Formulations for Unit Commitment Problems

    KAUST Repository

    Lima, Ricardo

    2015-12-11

    This paper addresses the study of symmetry in Unit Commitment (UC) problems solved by Mixed Integer Linear Programming (MILP) formulations, and using Linear Programming based Branch & Bound MILP solvers. We propose three sets of symmetry breaking constraints for UC MILP formulations exhibiting symmetry, and its impact on three UC MILP models are studied. The case studies involve the solution of 24 instances by three widely used models in the literature, with and without symmetry breaking constraints. The results show that problems that could not be solved to optimality within hours can be solved with a relatively small computational burden if the symmetry breaking constraints are assumed. The proposed symmetry breaking constraints are also compared with the symmetry breaking methods included in two MILP solvers, and the symmetry breaking constraints derived in this work have a distinct advantage over the methods in the MILP solvers.

  4. Treatment of retinal detachments with multiple breaks by pneumatic retinopexy.

    Science.gov (United States)

    McAllister, I L; Zegarra, H; Meyers, S M; Gutman, F A

    1987-07-01

    Pneumatic retinopexy is a recent innovation in the treatment of uncomplicated retinal detachments due to a superior retinal break extending for 30 degrees or less. We describe four patients with retinal detachments involving multiple breaks who were successfully treated by a modification of this technique. One case involved a calculation of the size of the gas bubble required to achieve tamponade of both breaks simultaneously. The gas was then administered in two sequential injections, as the volume was too large to be given in a single dose. In the remaining three cases, the gas bubble was rotated from the position of tamponade for one break into a position where tamponade of the second break or groups of breaks was achieved.

  5. DNA Strand Breaks, Neurodegeneration and Aging in the Brain

    Science.gov (United States)

    Katyal, Sachin; McKinnon, Peter J.

    2013-01-01

    Defective responses to DNA single- or double-strand breaks can result in neurological disease, underscoring the critical importance of DNA repair for neural homeostasis. Human DNA repair-deficient syndromes are generally congenital, in which brain pathology reflects the consequences of developmentally incurred DNA damage. Although, it is unclear to what degree DNA strand-break repair defects in mature neural cells contributes to disease pathology. However, DNA single-strand breaks are a relatively common lesion which if not repaired can impact cells via interference with transcription. Thus, this lesion, and probably to a lesser extent DNA double strand breaks, may be particularly relevant to aging in the neural cell population. In this review we will examine the consequences of defective DNA strand break repair towards homeostasis in the brain. Further, we also consider the utility of mouse models as reagents to understand the connection between DNA strand breaks and aging in the brain. PMID:18455751

  6. Statistical model on the surface elevation of waves with breaking

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    In the surface wind drift layer with constant momentum flux, two sets of the consistent surface eleva- tion expressions with breaking and occurrence conditions for breaking are deduced from the first in- tegrals of the energy and vortex variations and the kinetic and mathematic breaking criterions, then the expression of the surface elevation with wave breaking is established by using the Heaviside function. On the basis of the form of the sea surface elevation with wave breaking and the understanding of small slope sea waves, a triple composite function of real sea waves is presented including the func- tions for the breaking, weak-nonlinear and basic waves. The expression of the triple composite func- tion and the normal distribution of basic waves are the expected theoretical model for surface elevation statistics.

  7. Ground water in Oklahoma

    Science.gov (United States)

    Leonard, A.R.

    1960-01-01

    One of the first requisites for the intelligent planning of utilization and control of water and for the administration of laws relating to its use is data on the quantity, quality, and mode of occurrence of the available supplies. The collection, evaluation and interpretation, and publication of such data are among the primary functions of the U.S. Geological Survey. Since 1895 the Congress has made appropriations to the Survey for investigation of the water resources of the Nation. In 1929 the Congress adopted the policy of dollar-for-dollar cooperation with the States and local governmental agencies in water-resources investigations of the U.S. Geological Survey. In 1937 a program of ground-water investigations was started in cooperation with the Oklahoma Geological Survey, and in 1949 this program was expanded to include cooperation with the Oklahoma Planning and Resources Board. In 1957 the State Legislature created the Oklahoma Water Resources Board as the principal State water agency and it became the principal local cooperator. The Ground Water Branch of the U.S. Geological Survey collects, analyzes, and evaluates basic information on ground-water resources and prepares interpretive reports based on those data. Cooperative ground-water work was first concentrated in the Panhandle counties. During World War II most work was related to problems of water supply for defense requirements. Since 1945 detailed investigations of ground-water availability have been made in 11 areas, chiefly in the western and central parts of the State. In addition, water levels in more than 300 wells are measured periodically, principally in the western half of the State. In Oklahoma current studies are directed toward determining the source, occurrence, and availability of ground water and toward estimating the quantity of water and rate of replenishment to specific areas and water-bearing formations. Ground water plays an important role in the economy of the State. It is

  8. Information Content of Spontaneous Symmetry Breaking

    CERN Document Server

    Gleiser, Marcelo

    2012-01-01

    We propose a measure of order in the context of nonequilibrium field theory and argue that this measure, which we call relative configurational entropy (RCE), may be used to quantify the emergence of coherent low-entropy configurations, such as time-dependent or time-independent topological and nontopological spatially-extended structures. As an illustration, we investigate the nonequilibrium dynamics of spontaneous symmetry-breaking in three spatial dimensions. In particular, we focus on a model where a real scalar field, prepared initially in a symmetric thermal state, is quenched to a broken-symmetric state. For a certain range of initial temperatures, spatially-localized, long-lived structures known as oscillons emerge in synchrony and remain until the field reaches equilibrium again. We show that the RCE correlates with the number-density of oscillons, thus offering a quantitative measure of the emergence of nonperturbative spatiotemporal patterns that can be generalized to a variety of physical systems.

  9. Thick brane solitons breaking $Z_2$ symmetry

    CERN Document Server

    Peyravi, Marzieh; Lobo, Francisco S N

    2015-01-01

    New soliton solutions for thick branes in 4 + 1 dimensions are considered in this article. In particular, brane models based on the sine-Gordon (SG), $\\varphi^{4}$ and $\\varphi^{6}$ scalar fields are investigated; in some cases $Z_{2}$ symmetry is broken. Besides, these soliton solutions are responsible for supporting and stabilizing the thick branes. In these models, the origin of the symmetry breaking resides in the fact that the modified scalar field potential may have non-degenerate vacuua and these non-degenerate vacuua determine the cosmological constant on both sides of the brane. At last, in order to explore the particle motion in the neighborhood of the brane, the geodesic equations along the fifth dimension are studied.

  10. Supersymmetry Breaking, Gauge Mediation, and the LHC

    Energy Technology Data Exchange (ETDEWEB)

    Shih, David [Rutgers Univ., New Brunswick, NJ (United States)

    2015-04-14

    Gauge mediated SUSY breaking (GMSB) is a promising class of supersymmetric models that automatically satisfies the precision constraints. Prior work of Meade, Seiberg and Shih in 2008 established the full, model-independent parameter space of GMSB, which they called "General Gauge Mediation" (GGM). During the first half of 2010-2015, Shih and his collaborators thoroughly explored the parameter space of GGM and established many well-motivated benchmark models for use by the experimentalists at the LHC. Through their work, the current constraints on GGM from LEP, the Tevatron and the LHC were fully elucidated, together with the possible collider signatures of GMSB at the LHC. This ensured that the full discovery potential for GGM could be completely realized at the LHC.

  11. Symmetry breaking: The standard model and superstrings

    Energy Technology Data Exchange (ETDEWEB)

    Gaillard, M.K.

    1988-08-31

    The outstanding unresolved issue of the highly successful standard model is the origin of electroweak symmetry breaking and of the mechanism that determines its scale, namely the vacuum expectation value (vev)v that is fixed by experiment at the value v = 4m//sub w//sup 2///g/sup 2/ = (..sqrt..2G/sub F/)/sup /minus/1/ approx. = 1/4 TeV. In this talk I will discuss aspects of two approaches to this problem. One approach is straightforward and down to earth: the search for experimental signatures, as discussed previously by Pierre Darriulat. This approach covers the energy scales accessible to future and present laboratory experiments: roughly (10/sup /minus/9/ /minus/ 10/sup 3/)GeV. The second approach involves theoretical speculations, such as technicolor and supersymmetry, that attempt to explain the TeV scale. 23 refs., 5 figs.

  12. Gravitino condensation, supersymmetry breaking and inflation

    CERN Document Server

    Houston, N

    2015-01-01

    Motivated by dualistic considerations of the reality of quark condensation in quantum chromodynamics, and the connections of supergravity to the exotic physics of string and M-theory, in this thesis we investigate the dynamical breaking of local supersymmetry via gravitino condensation. We firstly demonstrate non-perturbative gravitino mass generation via this mechanism in flat spacetime, and from this derive the condensate mode wavefunction renormalisation. By then calculating the full canonically normalised one-loop effective potential for the condensate mode about a de Sitter background, we demonstrate that, contrary to claims in the literature, this process may both occur and function in a phenomenologically viable manner. In particular, we find that outside of certain unfortunate gauge choices, the stability of the condensate is intimately tied via gravitational degrees of freedom to the sign of the tree-level cosmological constant. Furthermore, we find that the energy density liberated may provide the n...

  13. Dirac Gauginos in Low Scale Supersymmetry Breaking

    CERN Document Server

    Goodsell, Mark D

    2014-01-01

    It has been claimed that Dirac gaugino masses are necessary for realistic models of low-scale supersymmetry breaking, and yet very little attention has been paid to the phenomenology of a light gravitino when gauginos have Dirac masses. We begin to address this deficit by investigating the couplings and phenomenology of the gravitino in the effective Lagrangian approach. We pay particular attention to the phenomenology of the scalar octets, where new decay channels open up. This leads us to propose a new simplified effective scenario including only light gluinos, sgluons and gravitinos, allowing the squarks to be heavy -- with the possible exception of the third generation. Finally, we comment on the application of our results to Fake Split Supersymmetry.

  14. Dirac gauginos in low scale supersymmetry breaking

    Energy Technology Data Exchange (ETDEWEB)

    Goodsell, Mark D., E-mail: mark.goodsell@lpthe.jussieu.fr [Sorbonne Universités, UPMC Univ. Paris 06, UMR 7589, LPTHE, F-75005, Paris (France); CNRS, UMR 7589, LPTHE, F-75005, Paris (France); Tziveloglou, Pantelis, E-mail: pantelis.tziveloglou@vub.ac.be [Theoretische Natuurkunde and IIHE, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels (Belgium); International Solvay Institutes, Brussels (Belgium)

    2014-12-15

    It has been claimed that Dirac gaugino masses are necessary for realistic models of low-scale supersymmetry breaking, and yet very little attention has been paid to the phenomenology of a light gravitino when gauginos have Dirac masses. We begin to address this deficit by investigating the couplings and phenomenology of the gravitino in the effective Lagrangian approach. We pay particular attention to the phenomenology of the scalar octets, where new decay channels open up. This leads us to propose a new simplified effective scenario including only light gluinos, sgluons and gravitinos, allowing the squarks to be heavy – with the possible exception of the third generation. Finally, we comment on the application of our results to Fake Split Supersymmetry.

  15. Multiscale Simulation of Breaking Wave Impacts

    DEFF Research Database (Denmark)

    Lindberg, Ole

    -distance based adaptivity method and redistributed via a point position filtering method. The incompressible and inviscid ALE-WLS model is applied to the following standard validation test cases: deforming elliptical drop, small amplitude standing waves and the dam break problem. The deforming elliptical drop...... and mass conservation is satisfied through a pressure-corrector type calculation of the pressure. The weighted least squares method (WLS) is combined with approximate Riemann solvers to introduce numerical smoothing of the solution around steep gradients in the velocity and pressure fields. The Poisson...... equation is solved and the pressure boundary conditions are satisfied by a generalized finite pointset method (GFPM); This provides a geometrically flexible and stable solution for the fluid pressure. The numerical approximations of these equations are performed on unstructured point distributions...

  16. Acoustic Emission from Breaking a Bamboo Chopstick

    Science.gov (United States)

    Tsai, Sun-Ting; Wang, Li-Min; Huang, Panpan; Yang, Zhengning; Chang, Chin-De; Hong, Tzay-Ming

    2016-01-01

    The acoustic emission from breaking a bamboo chopstick or a bundle of spaghetti is found to exhibit similar behavior as the famous seismic laws of Gutenberg and Richter, Omori, and Båth. By the use of a force-sensing detector, we establish a positive correlation between the statistics of sound intensity and the magnitude of a tremor. We also manage to derive these laws analytically without invoking the concept of a phase transition, self-organized criticality, or fractal. Our model is deterministic and relies on the existence of a structured cross section, either fibrous or layered. This success at explaining the power-law behavior supports the proposal that geometry is sometimes more important than mechanics.

  17. Self-breaking retarded acid emulsion

    Energy Technology Data Exchange (ETDEWEB)

    Scherubel, G.A.

    1979-02-20

    A subterranean formation is acidized with an acid-in-oil emulsion consisting of an aqueous acidizing solution, an oil, an alkyl C/sub 8/ to C/sub 18/ primary fatty amine, and at least one diethanolamide of at least one C/sub 8/ to C/sub 18/ fatty acid. The present invention is an improved acid-in-oil acidizing emulsion, and acidizing method such as an emulsion, the emulsion being of the type containing an effective amount of at least one C/sub 8/ to C/sub 18/ primary amine as a cationic surfactant to increase the normal reaction. The diethanolamine is a nonionic surfactant which causes the emulsion to break as the acidizing capacity of the emulsion becomes substantially depleted, i.e., spent, on the formation. 41 claims.

  18. Symmetry breaking at magnetic surfaces and interfaces

    Energy Technology Data Exchange (ETDEWEB)

    Qiu, Z. Q.

    1998-11-20

    Examples represented of how symmetry breaking enters into consideration of the physical properties of magnetic surfaces and ultrathin films. The role of magnetic anisotropy is discussed to understand: (i) the existence of two-dimensional (2D) magnetic long-ranged order at finite temperature, (ii) magnetization scaling behavior at the Curie transition, (iii) the 2D spin reorientation transition, and (iv) step-induced magnetic behavior. Experimental examples cited include ultrathin magnetic Fe and Co overlayer and wedge structures grown onto single crystal substrates that are either flat or curved to produce vicinal surfaces with a continuous gradient in the step density. Also included is an example of an atomically flat manganite intergrowth that appears as a stacking fault in a bulk single crystal of a naturally layered structure.

  19. Breaking a Dark Degeneracy with Gravitational Waves

    CERN Document Server

    Lombriser, Lucas

    2015-01-01

    We identify a scalar-tensor model embedded in the Horndeski action whose cosmological background and linear scalar fluctuations are degenerate with the concordance cosmology. The model admits a self-accelerated background expansion at late times that is stable against perturbations with a sound speed attributed to the new field that is equal to the speed of light. While degenerate in scalar fluctuations, self acceleration of the model implies a present cosmological tensor mode propagation at 5% less efficient than in general relativity. These discrepancies will be testable with future measurements of gravitational waves emitted by events at cosmological distances. Hence, they can be used to break the dark degeneracy in our current observations between two fundamentally different explanations of cosmic acceleration - a cosmological constant and a scalar-tensor modification of gravity.

  20. Magnetic rotation and chiral symmetry breaking

    Indian Academy of Sciences (India)

    Ashok Kumar Jain; Amita

    2001-08-01

    The deformed mean field of nuclei exhibits various geometrical and dynamical symmetries which manifest themselves as various types of rotational and decay patterns. Most of the symmetry operations considered so far have been defined for a situation wherein the angular momentum coincides with one of the principal axes and the principal axis cranking may be invoked. New possibilities arise with the observation of rotational features in weakly deformed nuclei and now interpreted as magnetic rotational bands. More than 120 MR bands have now been identified by filtering the existing data. We present a brief overview of these bands. The total angular momentum vector in such bands is tilted away from the principal axes. Such a situation gives rise to several new possibilities including breaking of chiral symmetry as discussed recently by Frauendorf. We present the outcome of such symmetries and their possible experimental verification. Some possible examples of chiral bands are presented.

  1. Time-symmetry breaking in turbulence

    CERN Document Server

    Jucha, Jennifer; Pumir, Alain; Bodenschatz, Eberhard

    2014-01-01

    In three-dimensional turbulent flows, the flux of energy from large to small scales breaks time symmetry. We show here that this irreversibility can be quantified by following the relative motion of several Lagrangian tracers. We find by analytical calculation, numerical analysis and experimental observation that the existence of the energy flux implies that, at short times, two particles separate temporally slower forwards than backwards, and the difference between forward and backward dispersion grows as $t^3$. We also find the geometric deformation of material volumes, surrogated by four points spanning an initially regular tetrahedron, to show sensitivity to the time-reversal with an effect growing linearly in $t$. We associate this with the structure of the strain rate in the flow.

  2. Higgsless approach to electroweak symmetry breaking

    CERN Document Server

    Grojean, Christophe

    2007-01-01

    Higgsless models are an attempt to achieve a breaking of the electroweak symmetry via boundary conditions at the end-points of a fifth dimension compactified on an interval, as an alternative to the usual Higgs mechanism. There is no physical Higgs scalar in the spectrum and the perturbative unitarity violation scale is delayed via the exchange of massive spin-1 KK resonances. The correct mass spectrum is reproduced in a model in warped space, which inherits a custodial symmetry from a left–right gauge symmetry in the bulk. Phenomenological challenges as well as collider signatures are presented. From the AdS/CFT perspective, this model appears as a weakly coupled dual to walking technicolour models.

  3. Breaking the sound barrier in holography

    Science.gov (United States)

    Hoyos, Carlos; Jokela, Niko; Rodríguez Fernández, David; Vuorinen, Aleksi

    2016-11-01

    It has been conjectured that the speed of sound in holographic models with UV fixed points has an upper bound set by the value of the quantity in conformal field theory. If true, this would set stringent constraints for the presence of strongly coupled quark matter in the cores of physical neutron stars, as the existence of two-solar-mass stars appears to demand a very stiff equation of state. In this article, we present a family of counterexamples to the speed of sound conjecture, consisting of strongly coupled theories at finite density. The theories we consider include N =4 super Yang-Mills at finite R -charge density and nonzero gaugino masses, while the holographic duals are Einstein-Maxwell theories with a minimally coupled scalar in a charged black hole geometry. We show that for a small breaking of conformal invariance, the speed of sound approaches the conformal value from above at large chemical potentials.

  4. The ground state energy of the mean field spin glass model

    CERN Document Server

    Koukiou, Flora

    2008-01-01

    From the study of a functional equation of Gibbs measures we calculate the limiting free energy of the Sherrington-Kirkpatrick spin glass model at a particular value of (low) temperature. This implies the following lower bound for the ground state energy $\\epsilon_0$ \\[\\epsilon_0\\geq -0.7833...,\\] close to the replica symmetry breaking and numerical simulations values.

  5. Dynamical Breaking of Generalized Yang-Mills Theory

    Institute of Scientific and Technical Information of China (English)

    WANGDian-Fu; SONGHe-Shan

    2004-01-01

    The dynamical breaking of a generalized Yang-Mills theory is discussed. It is shown, in terms of the Nambu Jona-Lasinio mechanism, that the gauge symmetry breaking can be realized dynamically in the generalized Yang-Mills theory. The combination of the generalized Yang-Mills theory and the NJL mechanism provides a way to overcome the difficulties related to the Higgs field and the Higgs mechanism in the usual spontaneous symmetry breaking theory.

  6. Dynamical Breaking of Generalized Yang-Mills Theory

    Institute of Scientific and Technical Information of China (English)

    WANG Dian-Fu; SONG He-Shah

    2004-01-01

    The dynamical breaking of a generalized Yang-Mills theory is discussed. It is shown, in terms of the Nambu-Jona-Lasinio mechanism, that the gauge symmetry breaking can be realized dynamically in the generalized Yang-Mills theory. The combination of the generalized Yang-Mills theory and the NJL mechanism provides a way to overcome the difficulties related to the Higgs field and the Higgs mechanism in the usual spontaneous symmetry breaking theory.

  7. Review of Rotational Symmetry Breaking in Baby Skyrme Models

    CERN Document Server

    Karliner, Marek

    2009-01-01

    We discuss one of the most interesting phenomena exhibited by baby skyrmions -- breaking of rotational symmetry. The topics we will deal with here include the appearance of rotational symmetry breaking in the static solutions of baby Skyrme models, both in flat as well as in curved spaces, the zero-temperature crystalline structure of baby skyrmions, and finally, the appearance of spontaneous breaking of rotational symmetry in rotating baby skyrmions.

  8. Three-Dimensional Simulations of Deep-Water Breaking Waves

    CERN Document Server

    Brucker, Kyle A; Dommermuth, Douglas G; Adams, Paul

    2014-01-01

    The formulation of a canonical deep-water breaking wave problem is introduced, and the results of a set of three-dimensional numerical simulations for deep-water breaking waves are presented. In this paper fully nonlinear progressive waves are generated by applying a normal stress to the free surface. Precise control of the forcing allows for a systematic study of four types of deep-water breaking waves, characterized herein as weak plunging, plunging, strong plunging, and very strong plunging.

  9. Soft breaking of BRST symmetry and gauge dependence

    CERN Document Server

    Lavrov, P M; Reshetnyak, A A

    2012-01-01

    We continue investigation of soft breaking of BRST symmetry in the Batalin-Vilkovisky (BV) formalism beyond regularizations like dimensional ones used in our previous paper. We generalize a definition of soft breaking of BRST symmetry valid for general gauge theories and arbitrary gauge fixing. The gauge dependence of generating functionals of Green's functions is investigated. It is proved that such introduction of a soft breaking of BRST symmetry into gauge theories leads to inconsistency of the conventional BV formalism.

  10. Breaking Gaussian incompatibility on continuous variable quantum systems

    Energy Technology Data Exchange (ETDEWEB)

    Heinosaari, Teiko, E-mail: teiko.heinosaari@utu.fi [Turku Centre for Quantum Physics, Department of Physics and Astronomy, University of Turku, FI-20014 Turku (Finland); Kiukas, Jukka, E-mail: jukka.kiukas@aber.ac.uk [Department of Mathematics, Aberystwyth University, Penglais, Aberystwyth, SY23 3BZ (United Kingdom); Schultz, Jussi, E-mail: jussi.schultz@gmail.com [Turku Centre for Quantum Physics, Department of Physics and Astronomy, University of Turku, FI-20014 Turku (Finland); Dipartimento di Matematica, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano (Italy)

    2015-08-15

    We characterise Gaussian quantum channels that are Gaussian incompatibility breaking, that is, transform every set of Gaussian measurements into a set obtainable from a joint Gaussian observable via Gaussian postprocessing. Such channels represent local noise which renders measurements useless for Gaussian EPR-steering, providing the appropriate generalisation of entanglement breaking channels for this scenario. Understanding the structure of Gaussian incompatibility breaking channels contributes to the resource theory of noisy continuous variable quantum information protocols.

  11. DNA Strand Breaks, Neurodegeneration and Aging in the Brain

    OpenAIRE

    Katyal, Sachin; McKinnon, Peter J

    2008-01-01

    Defective responses to DNA single- or double-strand breaks can result in neurological disease, underscoring the critical importance of DNA repair for neural homeostasis. Human DNA repair-deficient syndromes are generally congenital, in which brain pathology reflects the consequences of developmentally incurred DNA damage. Although, it is unclear to what degree DNA strand-break repair defects in mature neural cells contributes to disease pathology. However, DNA single-strand breaks are a relat...

  12. Detection of ground ice using ground penetrating radar method

    Institute of Scientific and Technical Information of China (English)

    Gennady M. Stoyanovich; Viktor V. Pupatenko; Yury A. Sukhobok

    2015-01-01

    The paper presents the results of a ground penetrating radar (GPR) application for the detection of ground ice. We com-bined a reflection traveltime curves analysis with a frequency spectrogram analysis. We found special anomalies at specific traces in the traveltime curves and ground boundaries analysis, and obtained a ground model for subsurface structure which allows the ground ice layer to be identified and delineated.

  13. Collison and Grounding

    DEFF Research Database (Denmark)

    Wang, G.; Ji, C.; Kuhala, P.;

    2006-01-01

    COMMITTEE MANDATE Concern for structural arrangements on ships and floating structures with regard to their integrity and adequacy in the events of collision and grounding, with the view towards risk assessment and management. Consideration shall be given to the frequency of occurrence, the proba......COMMITTEE MANDATE Concern for structural arrangements on ships and floating structures with regard to their integrity and adequacy in the events of collision and grounding, with the view towards risk assessment and management. Consideration shall be given to the frequency of occurrence...

  14. A Boussinesq Equation-Based Model for Nearshore Wave Breaking

    Institute of Scientific and Technical Information of China (English)

    余建星; 张伟; 王广东; 杨树清

    2004-01-01

    Based on the wave breaking model by Li and Wang (1999), this work is to apply Dally' s analytical solution to the wave-height decay irstead of the empirical and semi-empirical hypotheses of wave-height distribution within the wave breaking zone. This enhances the applicability of the model. Computational results of shoaling, location of wave breaking, wave-height decay after wave breaking, set-down and set-up for incident regular waves are shown to have good agreement with experimental and field data.

  15. Wilson flux breaking and coset space dimensional reduction

    Energy Technology Data Exchange (ETDEWEB)

    Zoupanos, G.

    1988-02-11

    Higher dimensional gauge theories lead, after dimensional reduction on coset spaces, to four-dimensional gauge theories usually with the natural emergence of a Higgs sector which is completely determined. However, the Higgs fields never appear in the adjoint representation which in many GUTs could lead to a successful spontaneous symmetry breaking towards the low energy gauge group. As an alternative we suggest that the breaking of the four-dimensional GUTs obtained from CSDR could be provided by the Wilson flux breaking and we discuss some semirealistic examples. We also speculate on the possibility that the breaking of the electroweak sector has dynamical origin.

  16. Simulation of dike-break processes in the Yellow River

    Institute of Scientific and Technical Information of China (English)

    LIANG; Lin(梁林); NI; Jinren(倪晋仁); A.G.L.; Borthwick; B.D.; Rogers

    2002-01-01

    Although dike-break and dam-break processes have similar unsteady and discontinuous hydrodynamic characteristics, there are significant differences. In general, dam-break simulations focus on the flood discharge, whereas dike-break simulations are required to provide detailed information on the hydraulic and breach evolution processes, such as pit-scour and breach-expansion. In order to overcome the difficulties inherent in applying existing dam-break models to dike-breaks, this paper presents an integrated model that combines the shallow water, sediment transport, riverbed deformation and breach-expansion equations. A Godunov-type finite volume method is used for the flow simulation, based on a fixed quadtree grid system. The hydrodynamic aspects of the model are validated for an idealized rectangular dam break. A representative reach in the Yellow River is selected at a location where there is a significant risk of a dike-break, and full-scale topographic and hydrologic data are available. Typical dike-break processes are successfully simulated, with predicted hydraulic characteristics and terrain changes qualitatively in agreement with laboratory data. The modeling study is of practical importance for implementation of engineering countermeasures in the Yellow River, such as breach blocking and head wrapping.

  17. Coding Issues in Grounded Theory

    Science.gov (United States)

    Moghaddam, Alireza

    2006-01-01

    This paper discusses grounded theory as one of the qualitative research designs. It describes how grounded theory generates from data. Three phases of grounded theory--open coding, axial coding, and selective coding--are discussed, along with some of the issues which are the source of debate among grounded theorists, especially between its…

  18. Coding Issues in Grounded Theory

    Science.gov (United States)

    Moghaddam, Alireza

    2006-01-01

    This paper discusses grounded theory as one of the qualitative research designs. It describes how grounded theory generates from data. Three phases of grounded theory--open coding, axial coding, and selective coding--are discussed, along with some of the issues which are the source of debate among grounded theorists, especially between its…

  19. A LYMAN BREAK GALAXY IN THE EPOCH OF REIONIZATION FROM HUBBLE SPACE TELESCOPE GRISM SPECTROSCOPY

    Energy Technology Data Exchange (ETDEWEB)

    Rhoads, James E.; Malhotra, Sangeeta; Cohen, Seth; Zheng Zhenya [School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287 (United States); Stern, Daniel [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States); Dickinson, Mark [National Optical Astronomy Observatory, Tucson, AZ (United States); Pirzkal, Norbert; Grogin, Norman; Koekemoer, Anton; Peth, Michael A. [Space Telescope Science Institute, Baltimore, MD (United States); Spinrad, Hyron [University of California, Berkeley, CA (United States); Reddy, Naveen [University of California, Riverside, CA (United States); Hathi, Nimish [Observatories of the Carnegie Institution of Washington, Pasadena, CA (United States); Budavari, Tamas [Johns Hopkins University, Baltimore, MD (United States); Ferreras, Ignacio [Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT (United Kingdom); Gardner, Jonathan P. [NASA Goddard Space Flight Center, Astrophysics Science Division, Observational Cosmology Laboratory, Code 665, Greenbelt, MD 20771 (United States); Gronwall, Caryl [Department of Astronomy and Astrophysics, and Institute for Gravitation and the Cosmos, The Pennsylvania State University, University Park, PA 16802 (United States); Haiman, Zoltan [Columbia University, New York, NY (United States); Kuemmel, Martin [Universitaets-Sternwarte Muenchen, Scheinerstr. 1, D-81679 Muenchen (Germany); Meurer, Gerhardt, E-mail: James.Rhoads@asu.edu [International Centre for Radio Astronomy Research, University of Western Australia, M468, 35 Stirling Highway, Crawley, WA 6009 (Australia); and others

    2013-08-10

    We present observations of a luminous galaxy at z = 6.573-the end of the reionization epoch-which has been spectroscopically confirmed twice. The first spectroscopic confirmation comes from slitless Hubble Space Telescope Advanced Camera for Surveys grism spectra from the PEARS survey (Probing Evolution And Reionization Spectroscopically), which show a dramatic continuum break in the spectrum at rest frame 1216 A. The second confirmation is done with Keck + DEIMOS. The continuum is not clearly detected with ground-based spectra, but high wavelength resolution enables the Ly{alpha} emission line profile to be determined. We compare the line profile to composite line profiles at z = 4.5. The Ly{alpha} line profile shows no signature of a damping wing attenuation, confirming that the intergalactic gas is ionized at z = 6.57. Spectra of Lyman breaks at yet higher redshifts will be possible using comparably deep observations with IR-sensitive grisms, even at redshifts where Ly{alpha} is too attenuated by the neutral intergalactic medium to be detectable using traditional spectroscopy from the ground.

  20. Mechanics of Ship Grounding

    DEFF Research Database (Denmark)

    Pedersen, Preben Terndrup

    1996-01-01

    In these notes first a simplified mathematical model is presented for analysis of ship hull loading due to grounding on relatively hard and plane sand, clay or rock sea bottoms. In a second section a more rational calculation model is described for the sea bed soil reaction forces on the sea bottom...