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Sample records for abdus salam ictp

  1. Abdus Salam

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education. Abdus Salam. Articles written in Resonance – Journal of Science Education. Volume 3 Issue 1 January 1998 pp 81-88 Reflections. Einstein's Last Dream: The Space – Time Unification of Fundamental Forces · Abdus Salam · More Details Fulltext PDF. Volume 10 ...

  2. Abdus Salam: The passionate, compassionate man and, his masterpiece, the ICTP

    Science.gov (United States)

    Virasoro, Miguel A.

    2017-03-01

    Abdus Salam was a great man in more than one dimension. The conception and building of the ICTP system required much more than the intelligence of a great scientist. I will stress those other facets that made him such a unique personality: the optimism that coloured his views about men and women, his love for his people and his commitment to the less favoured peoples of the world and a crucial ingredient, his deep and complex sense of ethical values that pushed him towards engagement in the political reality. Endowed with a formidable power of persuasion and a healthy lack of respect for norms or rules that are not based on justice he made a big difference on many of us and will remain as an icon for future generations. I will also describe the final touches that Salam’s collaborators and successors had to add to keep his heritage flourishing.

  3. FOREWORD: International Workshop on Theoretical Plasma Physics: Modern Plasma Science. Sponsored by the Abdus Salam ICTP, Trieste, Italy

    Science.gov (United States)

    Shukla, P. K.; Stenflo, L.

    2005-01-01

    The "International Workshop on Theoretical Plasma Physics: Modern Plasma Science was held at the Abdus Salam International Centre for Theoretical Physics (Abdus Salam ICTP), Trieste, Italy during the period 5 16 July 2004. The workshop was organized by P K Shukla, R Bingham, S M Mahajan, J T Mendonça, L Stenflo, and others. The workshop enters into a series of previous biennial activities that we have held at the Abdus Salam ICTP since 1989. The scientific program of the workshop was split into two parts. In the first week, most of the lectures dealt with problems concerning astrophysical plasmas, while in the second week, diversity was introduced in order to address the important role of plasma physics in modern areas of science and technology. Here, attention was focused on cross-disciplinary topics including Schrödinger-like models, which are common in plasma physics, nonlinear optics, quantum engineering (Bose-Einstein condensates), and nonlinear fluid mechanics, as well as emerging topics in fundamental theoretical and computational plasma physics, space and dusty plasma physics, laser-plasma interactions, etc. The workshop was attended by approximately hundred-twenty participants from the developing countries, Europe, USA, and Japan. A large number of participants were young researchers from both the developing and industrial countries, as the directors of the workshop tried to keep a good balance in inviting senior and younger generations of theoretical, computational and experimental plasma physicists to our Trieste activities. In the first week, there were extensive discussions on the physics of electromagnetic wave emissions from pulsar magnetospheres, relativistic magnetohydrodynamics of astrophysical objects, different scale sizes turbulence and structures in astrophysics. The scientific program of the second week included five review talks (60 minutes) and about thirty invited topical lectures (30 minutes). In addition, during the two weeks, there

  4. Salam, Prof. Abdus

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 1988 Honorary. Salam, Prof. Abdus Nobel Laureate (Physics) - 1979. Date of birth: 29 January 1926. Date of death: 21 November 1996. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. Theory Of Evolution. Posted on 23 January 2018. Joint Statement by the Three ...

  5. Abdus Salam the dream of symmetry

    CERN Document Server

    The Abdus Salam International Centre for Theoretical Physics

    2011-01-01

    From a remote village in Pakistan to the prestigious colleges of Cambridge, from the vibrant atmosphere of London to Trieste. The film tells the gripping story of the life of Abdus Salam, great scientist of the twentieth century and Nobel Prize for Physics in 1979, creator of the International Centre for Theoretical Physics (ICTP) in Trieste. Through the direct testimonies of the great protagonists of the international science, such as the Nobel Prize for Physics David Gross, Gerard 't Hooft, Steven Weinberg, the film retraces the most significant moments of one of the most creative and exciting periods in the history of physics: the dream of a unified theory of elementary particles and fundamental forces of Nature.

  6. The house that Abdus built...The ICTP in Trieste

    International Nuclear Information System (INIS)

    Roederer, J.G.

    2006-01-01

    The Abdus Salam International Centre for Theoretical Physics stems the brain drain of physicists from developing nations at a time of new scientific challenges. Abdus Salam, a Nobel Prize-winning Pakistani physicist, recognized that improving science locally would not be enough to stem the flight of fledgling scientists from developing countries. International mechanisms would be needed to allow scientists - especially those returning home after training abroad - to stay connected with the world, to refresh their knowledge periodically, and to engage in international research collaborations. The time was right for the conception of an international centre for theoretical physics. In 1964 under the aegis of the IAEA, the Abdus Salam International Centre for Theoretical Physics (ICTP) was intended to be not just another international research institute. The intention was a model organization designed to promote training and research in the physical and mathematical sciences in developing countries; serve as a forum for scientists from all over the world; and operate as a first-class scientific institution. All three goals reflect the desire of its founding director, Abdus Salam, to confront the issues of isolation and brain drain that have continually dimmed the prospects for scientific excellence across the developing world. Today ICTP each year hosts some 6000 scientists in its facilities in Trieste, Italy, while maintaining strong and enduring links with scientific communities in more than 170 countries. Closer to home, it has forged cooperative relationship with many Italian scientific institutions. Through its efforts, the Centre has built a worldwide family of loyal alumni, tens of thousands of associates, lecturers, and students, many of whom are now internationally recognized scientists, university leaders, research-council presidents, and leading statesmen in their own countries

  7. Ideals and realities selected essays of Abdus Salam

    CERN Document Server

    Salam, Abdus; Lai, CH

    1989-01-01

    The latest edition of "Ideals and Realities" includes some of the most recent talks given by Professor Abdus Salam. They replace a few essays which were published in the second edition. An attempt has also been made to update some of the figures rendered absolete with the passage of time.

  8. Memorial meeting for professor Abdus Salam's 90th birthday

    CERN Document Server

    Duff, Michael; Khoo Phua, Kok; Memorial volume on Abdus Salam's 90th birthday

    2017-01-01

    In honor of one of the most prolific and exciting scientists of the second half of the last century, a memorial meeting was organized by the Institute of Advanced Studies at Nanyang Technological University for Professor Abdus Salam's 90th Birthday in January 2016. Salam believed that "scientific thought is the common heritage of all mankind" and that the developing world should play its part, not merely by importing technology but by being the arbiter of its own scientific destiny. That belief saw him rise from humble beginnings in a village in Pakistan to become one of the world's most original and influential particle physicists, culminating in the 1979 Nobel Prize (shared with Glashow and Weinberg) for contributions to electroweak unification, which forms an integral part of the Standard Model. The book collected the papers presented at this memorable event which saw many distinguished scientists participating as speakers to reflect on Prof Salam's great passion for the science and achievements.

  9. Cosmic Anger Abdus Salam - The First Muslim Nobel Scientist

    CERN Document Server

    Fraser, Gordon Murray

    2008-01-01

    This book presents a biography of Abdus Salam, the first Muslim to win a Nobel Prize for Science (Physics 1979), who was nevertheless excommunicated and branded as a heretic in his own country. His achievements are often overlooked, even besmirched. Realizing that the whole world had to be his stage, he pioneered the International Centre for Theoretical Physics in Trieste, a vital focus of Third World science which remains as his monument. A staunch Muslim, he was ashamed of thedecline of science in the heritage of Islam, and struggled doggedly to restore it to its former glory. Undermined by

  10. What remains invariant: Life lessons from Abdus Salam

    Science.gov (United States)

    Husain, T. Z.

    2017-03-01

    Abdus Salam was a multi-dimensional man who straddled research and institution-building with enviable flair; he was both religious and iconoclastic, a true citizen of the world yet deeply nationalistic, a scientist and a lover of literature, a villager and a cosmopolitan. While the specific details of his life belong to the man alone, Salam’s rich experiences exemplify certain values, attitudes and lessons that are universal. In this talk, we attempt to draw out those truths, by looking through the lens of physics. Our analysis of Salam’s personal journey mirrors the search for the invariants of a physical system in that we look beyond the particularities of his unique set of circumstances, to the essence that both categorizes, and transcends, explicit events. Thus we move through Salam’s life, collecting ’invariants’ that apply as much to us today as they did to him several decades ago. Together, these constitute an enduring wisdom that can prove invaluable to young scientists — especially those from developing countries — as they navigate different cultures, manage diverse loyalties, and balance the lure of research with the demands of service.

  11. Abdus Salam and quadratic curvature gravity: Classical solutions

    Science.gov (United States)

    Stelle, K. S.

    2017-03-01

    In 1978, Salam and Strathdee suggested on the basis of Froissart boundedness that curvature-squared terms should be included in the gravitational Lagrangian. Despite the presence of ghosts in such theories, the subject has remained a persistent topic in approaches to quantum gravity and cosmology. In this article, the space of spherically symmetric solutions to such theories is explored, highlighting horizonless solutions, wormholes and non-Schwarzschild black holes.

  12. ICTP appoints new director

    Science.gov (United States)

    Dacey, James

    2009-11-01

    Fernando Quevedo of the University of Cambridge in the UK has been appointed as the new director of the Abdus Salam International Centre for Theoretical Physics (ICTP) in Trieste, Italy. Quevedo will officially begin his new role this month and replaces Katepalli Sreenivasan, the India-born physicist who has led the institute since 2003.

  13. Memorial Meeting for Nobel Laureate Professor Abdus Salam's 90th Birthday

    CERN Document Server

    2016-01-01

    Abdus Salam was one of the most prolific and exciting scientists of the second half of the last century. From humble beginnings in a village in Pakistan, he rose to become one of the world's most original and influential particle physicists. He shared the 1979 Nobel Prize with Glashow and Weinberg for contributions to electroweak unification, which forms an integral part of the Standard Model. He was the first Pakistani Nobel Laureate and the second only Muslim after Anwar Sadat. After gaining his doctorate in Cambridge, he moved to Imperial College in 1957 where he founded the very successful Theoretical High Energy Physics Group. He remained there as Professor of Physics until his death in 1996.

  14. ICTP celebrates 50 years

    CERN Multimedia

    2014-01-01

    CERN is not the only scientific organisation to be celebrating a significant anniversary in 2014. Earlier this year, ESA turned 50, and last week it was the turn of the Abdus Salam International Centre for Theoretical Physics, ICTP, to blow out its 50 candles. I had the pleasure to be there for the occasion, and to take part in the first day of a four-day scientific celebration in which the true value of ICTP came to the fore.   Nobel Prize winning Pakistani physicist Abdus Salam established the ICTP in 1964, and went on to become its first director. The Centre’s mission was and remains to foster the development of international scientific cooperation and to promote scientific excellence with an emphasis on the developing world. Established outside Trieste, Italy, and operated under a tripartite agreement between the Italian government, the IAEA and UNESCO, the ICTP has proven itself true to that mandate and become a driving force for advancing scientific expertise around the globe....

  15. Statement at Abdus Salam International Centre for Theoretical Physics, 6 October 2014, Trieste, Italy

    International Nuclear Information System (INIS)

    Amano, Yukiya

    2014-01-01

    The ICTP was originally part of the Agency. In 1993, administration of the ICTP was transferred to UNESCO. We are still an important contributor to the ICTP budget and we work together in many areas, including training and nuclear knowledge management. This year, for example, our two organisations launched a two-year masters degree course in medical physics, which we developed together. Later today, I look forward to attending the opening of the IAEA X-Ray Fluorescence Beamline at the Elettra laboratory, which has been an IAEA Collaborating Centre since 2005. This important joint project will help to give research groups from developing countries better access to synchrotron radiation technology, which has important applications in human health, food and agriculture and other areas

  16. Salam Memorial

    CERN Document Server

    Rubbia, Carlo

    1997-01-01

    by T.W.B. KIBBLE / Blackett Laboratory, Imperial College, London. Recollections of Abdus Salam at Imperial College I shall give a personal account of Professor Salam's life and work from the perspective of a colleague at Imperial College, concentrating particularly but not exclusively on the period leading up to the discovery of the electro-weak theory. If necessary I could perhaps give more detail, but only once I have given more thought to what ground I shall cover. by Sheldon Lee GLASHOW / Harvard University, Cambridge, MA, USA. Memories of Abdus Salam. My interactions with Abdus Salam, weak as they have been, extended over five decades. I regret that we never once collaborated in print or by correspondence. I visited Abdus only twice in London and twice again in Trieste, and met him at the occasional conference or summer school. Our face-to-face encounters could be counted on one's fingers and toes, but we became the best of friends. Others will discuss Abdus as an inspiring teacher, as a great scientist,...

  17. Internacionalismo científico y religioso. Discurso y práctica de la política científica de Abdus Salam

    Directory of Open Access Journals (Sweden)

    Alexis De Greiff

    2004-07-01

    Full Text Available En este trabajo muestro cómo se entrelazan los discursas rc1igiosos y científicos en los espacios de interacción y negociación política. De forma complementaria muestro cómo una estrategia de cooperación científica puede verse desde la perspectiva de la sociología de las religiones. De forma específica me concentro en e! caso del Premio Nobel de Física de 1979, Abdus Salam, musulmán y paquistaní. Su discurso acerca de la colaboración científica es una prolongación del discurso "revitalista" islámico. Similarmente, su decisión de optar por el apoyo de Naciones Unidas tiene grandes coincidencias con la estrategia que su comunidad religiosa optó para protegerla de posibles ataques. PALABRAS CLAVES. Ciencia, religión, Islam, internacionalismo cientifico.

  18. Fusion Plasma Modelling Using Atomic and Molecular Data. Summary report of a Joint ICTP-IAEA Workshop

    International Nuclear Information System (INIS)

    Braams, B.J.

    2012-03-01

    The Joint ICTP-IAEA Workshop on Fusion Plasma Modelling using Atomic and Molecular Data was held from 23-27 January 2012 at Abdus Salam International Centre for Theoretical Physics in Trieste, Italy. Ten lecturers presented tutorials and reviews on topics in fusion plasma modelling and atomic, molecular and plasma-material interaction processes. There were 20 participants, generally early-career researchers in the area of A+M+PMI processes and also plasma modellers. The participants presented their work in short talks and a poster session. The proceedings of the workshop are summarized here. (author)

  19. Abdus-Salam and Ikudayisi (10)

    African Journals Online (AJOL)

    DELL

    occurring iron oxide nanoparticles: morphology, surface chemistry and environmental stability. Journal of Materials. Chemistry A1: 27-42. Harikumar, P.S., Joseph, L. and Dhanya, A. 2013. Photocatalytic degradation of textile dyes by hydrogel supported titanium dioxide nanoparticles. Journal of Environmental. Engineering ...

  20. Salam's Dream and Dynamic Changes in Chinese Condensed Matter Physics: A Personal Perspective

    Science.gov (United States)

    Lu, Yu

    Professor Abdus Salam deeply believed that `scientific thought is the common heritage of all mankind' and he had the dream that the developing world should benefit and could contribute substantially to that heritage, on par with the developed world...

  1. Joint ICTP-IAEA advanced workshop on model codes for spallation reactions

    International Nuclear Information System (INIS)

    Filges, D.; Leray, S.; Yariv, Y.; Mengoni, A.; Stanculescu, A.; Mank, G.

    2008-08-01

    The International Atomic Energy Agency (IAEA) and the Abdus Salam International Centre for Theoretical Physics (ICTP) organised an expert meeting at the ICTP from 4 to 8 February 2008 to discuss model codes for spallation reactions. These nuclear reactions play an important role in a wide domain of applications ranging from neutron sources for condensed matter and material studies, transmutation of nuclear waste and rare isotope production to astrophysics, simulation of detector set-ups in nuclear and particle physics experiments, and radiation protection near accelerators or in space. The simulation tools developed for these domains use nuclear model codes to compute the production yields and characteristics of all the particles and nuclei generated in these reactions. These codes are generally Monte-Carlo implementations of Intra-Nuclear Cascade (INC) or Quantum Molecular Dynamics (QMD) models, followed by de-excitation (principally evaporation/fission) models. Experts have discussed in depth the physics contained within the different models in order to understand their strengths and weaknesses. Such codes need to be validated against experimental data in order to determine their accuracy and reliability with respect to all forms of application. Agreement was reached during the course of the workshop to organise an international benchmark of the different models developed by different groups around the world. The specifications of the benchmark, including the set of selected experimental data to be compared to the models, were also defined during the workshop. The benchmark will be organised under the auspices of the IAEA in 2008, and the first results will be discussed at the next Accelerator Applications Conference (AccApp'09) to be held in Vienna in May 2009. (author)

  2. The Dirac medals of the ICTP. 1993

    International Nuclear Information System (INIS)

    1995-01-01

    The Dirac Medals of the International Centre for Theoretical Physics (ICTP) were instituted in 1985. These are awarded yearly to outstanding physicists, on Dirac's birthday - 8th August- for contributions to theoretical physics. The document includes the lectures of the three Dirac Medalists for 1993: Professor Sergio Ferrara, Professor Daniel Z. Freedman, and Professor Peter van Nieuwenhuizen. A separate abstract was prepared for each lecture

  3. The Latin American Perspective on the Role of the ICTP

    Science.gov (United States)

    Zepeda, Arnulfo

    2002-04-01

    Since its foundation, ICTP has launched and kept a diversity of programs designed to promote and enhance advanced studies and research activities in Third World countries in the frontiers of physics. Latin America has benefited from these programs in several ways. Data will be presented on the impact of ICTP in Latin America.

  4. ICTP: A Successful Model of International Scientific Collaboration

    CERN Multimedia

    CERN. Geneva

    2012-01-01

    The importance of international scientific collaboration in the changing world where the centre of gravity of fundamental research may be moving towards the east and the south is addressed. The unique role of ICTP in supporting global science is highlighted.

  5. Logarithmic scaling in the near-dissipation range of turbulence

    Indian Academy of Sciences (India)

    physics pp. 315–321. Logarithmic scaling in the near-dissipation range of turbulence. K R SREENIVASAN1 and A BERSHADSKII1,2. 1The Abdus Salam International Center for Theoretical Physics, Strada Costiera 11,. 34100 Trieste, Italy. 2ICAR, P.O. Box 31155, Jerusalem 91000, Israel. E-mail: krs@ictp.it. Abstract.

  6. STUDIES ON SOME VO(IV), Ni(II) AND Cu(II) COMPLEXES OF NON ...

    African Journals Online (AJOL)

    a

    The Abdus Salam International Centre for Theoretical Physics (ICTP) and. Swedish International Development Cooperation Agency (Sida) are thanked for their support. REFERENCES. 1. Kumar, D.; Gupta, P.K.; Syamal, A. J. Chem. Sci. 2005, 3, 247. 2. Britovsek, G.J.P.; Mastroianni, S.; Solan, G.A.; Baugh, S.P.D.; Redshaw, ...

  7. ICTP Spring College in Condensed Matter on Superconductivity

    CERN Document Server

    Lu, Y

    1995-01-01

    This volume contains the lecture notes of the ""Spring College on Superconductivity"" held from 27 April to 19 June 1992 at ICTP. The distinguished faculty of lecturers has provided a wide coverage of topics on the fascinating subject of superconductivity, ranging from basic physics to the latest developments. The comprehensive reviews included in this volume will prove invaluable for research workers and graduate students in the field.

  8. Rural wireless networking in developing countries: ICTP contribution

    International Nuclear Information System (INIS)

    Zennaro, Marco; Struzak, Ryszard; Radicella, Sandro M.

    2007-07-01

    Access to knowledge has become a cornerstone of progress for individuals and for nations. Internet as a cost-effective channel for the dissemination of knowledge and services is a paramount in our days. High-speed (broadband) Internet access can contribute to economic growth and is increasingly being recognized as a policy objective in most countries. It has been accepted that information and communication technologies (ICT) create basic infrastructure, as necessary to economic and social development as postal services, banks, medical centres and schools. However, in 48 of 71 developing countries, only less than 1 per cent of enterprises had broadband Internet connection, according to the UN Information Economy Report 2006. In the past, voice telephony has been the main option for rural and remote areas. Today, e-mail, e-commerce, tele-education, tele-health, and tele-medicine, multimedia services have become as important as the voice connectivity, maybe even more important. Training has been identified as a fundamental factor for the sustainability of ICT development and ICTP has been playing a leading role here, in collaboration with other entities. Without any doubts, universities and research centres are the most appropriate places to start the development and to disseminate knowledge necessary to assure sustainable access to the global information infrastructures in rural areas. It is hoped that ICTP's assistance will continue to contribute to foster the necessary local capacities in this field. In addition to the development of human resources and the dissemination of low-cost technology, scientists from Developing Counties need to make their voices heard in the policy, regulatory and business circles and the ICTP Associates have a role to play here. (author)

  9. Educating and training scientists from developing countries at ICTP

    International Nuclear Information System (INIS)

    Tuniz, C.; Sreenivasan, K.R.

    2004-01-01

    Considering nuclear knowledge management, ICTP is involved, mainly in co-operation with IAEA, in a range of activities aimed to update and disseminate the global knowledge of nuclear instruments and methods, including access to relevant nuclear data. This knowledge is critical for applications in a broad range of areas of high significance in sustainable development, such as energy, agriculture, nutrition, human health, water resources, climate change, protection of the environment, new materials and industrial applications. Technological advances in developing countries depend increasingly on access to information available via internet, particularly electronic journals and databases. Hence, it is necessary to bridge the existing digital divide between advanced and developing countries (e.g. internet access is 1000 times slower, on the average, in Africa than in United States), mainly created by the high costs of telecommunication and through monopolies. ICTP is planning specific projects, under the aegis of UNESCO and in co-operation with the International Telecommunication Union, to strengthen cyber-connectivity in Africa and Asia

  10. Proceedings of the IRI task force activity 2000

    International Nuclear Information System (INIS)

    Radicella, Sandro M.

    2001-05-01

    This internal report of the International Center for Theoretical Physics (ICTP) contains presentations delivered during the International Reference Ionosphere Task Force Activity 2000 which took place at the Abdus Salam ICTP during July 2000. The 2000 Task Force Activity is the seventh successful encounter of specialists organized by the URSI-COSPAR IRI Working Group and the Aeronomy and Radiopropagation Laboratory of the ICTP of Trieste, Italy. The main topic of this task force activity was the modeling of the topside ionosphere and the development of strategies for modeling of ionospheric variability

  11. Extract from Salam's Nobel Prize Acceptance Speech, Stockholm ...

    Indian Academy of Sciences (India)

    1979-12-08

    Home; Journals; Resonance – Journal of Science Education; Volume 3; Issue 1. Extract from Salam's Nobel Prize Acceptance Speech, Stockholm, December 8, 1979. Reflections Volume 3 Issue 1 January 1998 pp 89-90. Fulltext. Click here to view fulltext PDF. Permanent link:

  12. Research on climate change and variability at the Ab dus Salam International Centre for Theoretical Physics

    International Nuclear Information System (INIS)

    Giorgi, F.; Molteni, F.

    2002-01-01

    The Physics of Weather and Climate Section at the Abdus Salam International Centre for Theoretical Physics, established in 1998, is currently performing research on different aspects of climate variability, dealing with both natural and anthropogenic aspects of climate changes. In addition to performing diagnostic work on multi-decadal observational datasets and climate simulations carried out in major research centres, the PWC section has been developing its own climate modeling capability, which is focused on three main areas: a) modeling of regional climate change; b) seasonal forecasting at global and regional scale; c) development of simplified models of the general circulation. On topic a), research on different aspects of anthropogenic climate change is being carried out using the Regional Climate (RegCM) developed by Giorgi and collaborators at the National Centre for Atmospheric Research. Time-slice experiments with a high-resolution atmospheric GCM, comparing current climate conditions with future climate scenarios in selected decades, are also planned for the near future. On topic b), a strategy based on ensembles of high-resolution simulations with atmospheric GCM's, using sea surface temperature anomalies predicted by lower-resolution coupled models from other institutions, is currently under experimentation. A one-way nesting of RegCM into the GCM simulations will also be tested. On item c), a 5-layer atmospheric GCM with simplified physical parameterizations has been developed. This model has a very small computational cost compared with state-of-the-art GCMs, and is suitable for studies of natural climate variability on inter-decadal and intercentennial time scales. It is planned to couple this model to simplified ocean models of different complexity, from a simple, static mixed layer model, to simplified models of the tropical Pacific circulation suited to the simulation of the El Nino phenomenon. A joint project with the IAEA-MEL Laboratory in

  13. Astronomers Travel in Time and Space with Light

    Science.gov (United States)

    Mather, John C.

    2016-01-01

    This is an excerpt of John Mather's in a book titled: INSPIRED BY LIGHT, Reflections from the International Year of Light 2015. It was produced in January 2016 by SPIE, the European Physical Society (EPS), and The Abdus Salam International Centre for Theoretical Physics (ICTP) to commemorate the International Year of Light and Light-based Technologies 2015. The excerpt discusses how astronomers use light.

  14. Model for extended Pati-Salam gauge symmetry

    International Nuclear Information System (INIS)

    Foot, R.; Lew, H.; Volkas, R.R.

    1990-11-01

    The possibility of constructing non-minimal models of the Pati-Salam type is investigated. The most interesting examples are found to have an SU(6) x SU(2) L x SU(2) R guage invariance. Two interesting symmetry breaking patterns are analysed: one leading to the theory of SU(5) colour at an intermediate scale, the other to the quark-lepton symmetric model. 15 refs

  15. Electron-electron scattering in the Weinberg-Salam theory

    International Nuclear Information System (INIS)

    Hirashima, Hideharu

    1988-01-01

    The Weinberg theory is generally believed to have been established in recent years. At distances smaller than 10 -16 cm, the strength of weak interactions becomes almost equal to that of the electromagnetic interactions. The grand unified theories proposed so far are based on the idea that the coupling constants for the Abelian U(1) field, the non-Abelian SU(2) field and the non-Abelian SU(3) color field depend on momentum transfer, or distance. At distances smaller than 10 -29 cm, weak electromagnetic and strong interactions are assumed to become almost the same strength. The question here is whether nature has no new features in the vast range from 10 -16 cm (10 2 GeV) to 10 -29 cm (10 15 GeV) and whether the substructure of quark or lepton can be expected to be revealed at the next accelerator energy region. The Weinberger-Salam theory may lose its validity even in near future experiments. In any case, it must be overhauled from various aspects. From this point of view, by using the Weinberger-Salam theory, calculation of the differential cross section for elastic electron-electron scattering is re-examined to make clear the difference with the results of QED. In addition, as an example of experiments which could investigate the Weinberger-Salam theory more in detail, a short account is given of the elastic scattering of polarized electrons from a polarized electron target. (Nogami, K.)

  16. Proceedings of the IRI Task Force Activity 2001

    International Nuclear Information System (INIS)

    Radicella, S.M.

    2002-08-01

    This ICTP Internal Report contains the list of papers presented, activity report and the write up of a number of presentations delivered during the International Reference Ionosphere (IRI) Task Force Activity 2001 which took place at the Abdus Salam ICTP during May 2001, particularly centred in the week from 21-25 May. The 2001 Task Force Activity is the eighth successful encounter of specialists organized by the URSI-Cospar IRI Working Group and the Aeronomy and Radiopropagation Laboratory of the Abdus Salam International Centre for Theoretical Physics of Trieste, Italy. This project continues the IRI Task Force Activities at the Abdus Salam International Centre for Theoretical Physics (ICTP) in Trieste, Italy. The primary focus of this activity was the development of a specification model for ionospheric variability. Such a model is high on the wish list of users of ionospheric models. Climatological models like IRI provide monthly mean values of ionospheric parameters. Understandably a satellite designer or operator needs to know not only the monthly average conditions but also the expected deviations from these mean values. The main discussions and presentations took place during the week 21-25 May. The format was similar to last year's activity with presentations and round-table discussions in the morning and follow-on work in small subgroups in front of computer terminals in the afternoon. This Proceedings contains also four papers of the previous IRI Task Force Activity which were omitted

  17. B-decay anomalies in Pati-Salam SU(4)

    Science.gov (United States)

    Barbieri, Riccardo; Tesi, Andrea

    2018-03-01

    Attempts to incorporate in a coherent picture the B-decay anomalies presumably observed in b→ c and b→ s semi-leptonic decays have to face the absence of signals in other related experiments, both at low and at high energies. By extending and making more precise the content of Barbieri et al. (Eur Phys J C 77(1):8, 2017), we describe one such attempt based on the Pati-Salam SU(4) group, that unifies colour and the B- L charge, in the context of a new strongly interacting sector, equally responsible for producing a pseudo-Goldstone Higgs boson.

  18. Salamfestschrift. A collection of talks from the conference on highlights of particle and condensed matter physics

    International Nuclear Information System (INIS)

    Ali, A.; Ellis, J.; Randjbar Daemi, S.; eds)

    1994-01-01

    The book contains papers, mainly on particle physics, presented at the meeting held between 8 and 12 March 1993 at the ICTP in Trieste to honor Professor Abdus Salam. The articles have been grouped in 6 chapters: Standard Model (6 papers), Beyond the Standard Model (4 papers), Astro-Particle Physics and Cosmology (3 papers), Strings and Quantum Gravity (5 papers), Mathematical Physics and Condensed Matter (2 papers), Salam's Collaborators and Students (13 papers). A separate abstract was prepared for each paper. Refs, figs and tabs

  19. Propagande et identité narrative dans Sala@m Propaganda and Narrative Identity in Sala@m

    Directory of Open Access Journals (Sweden)

    Mohamed Saki

    2009-06-01

    Full Text Available The article analyses the linguistic and discursive processes implemented by the online magazine Sala@m in order to build a certain representation of the Muslim community in Great Britain. We consider the magazine’s discourse as an example of propaganda speech, the aim of which is to influence the audience by summoning up both its reason and affect. The notion of “narrative identity” (Ricoeur is essential to our analysis, for it enables us to highlight the system of narration which the magazine uses to create a collective story that it endeavours to tell the targeted audience. This narrative identity is meant to work as a mirror so that the audience recognizes itself in it and finds both a valued and clearly different image of the British Muslim community. The narrative identity elaborated in the magazine aims at turning a set of individuals into a homogeneous group endowed with consistency and temporal unity and which may consequently take position in the public space and claim rights on behalf of a marginalized group. We take an interest in the selective nature of the elaboration of the narrative identity, in what Ricoeur calls the configuration and reconfiguration, so as to enhance the work of selection that is specific to the propaganda speech of Sala@m.

  20. Predictive Pati-Salam theory of fermion masses and mixing

    Science.gov (United States)

    Cárcamo Hernández, A. E.; Kovalenko, Sergey; Valle, José W. F.; Vaquera-Araujo, C. A.

    2017-07-01

    We propose a Pati-Salam extension of the standard model incorporating a flavor symmetry based on the Δ (27) group. The theory realizes a realistic Froggatt-Nielsen picture of quark mixing and a predictive pattern of neutrino oscillations. We find that, for normal neutrino mass ordering, the atmospheric angle must lie in the higher octant, CP must be violated in oscillations, and there is a lower bound for the 0ν ββ decay rate. For the case of inverted mass ordering, we find that the lower atmospheric octant is preferred, and that CP can be conserved in oscillations. Neutrino masses arise from a low-scale seesaw mechanism, whose messengers can be produced by a Z' portal at the LHC.

  1. A web community to foster science in developing countries: www.ictp.it

    International Nuclear Information System (INIS)

    Canessa, E.; Fonda, E.; Zennaro, M.; Sreenivasan, K.R.

    2005-01-01

    The experiences with the new ICTP website, aiming to satisfy the needs of a modem and appealing image as well as provide tailored on-line information and services to its scientists (in-house and around the world), are discussed as a case-study of an emerging web-based international community. This approach, which to our knowledge has not been similarly employed by the scientific community in the past, keeps in mind the special audience and the uniqueness of the ICTP scientific structure and organization. The present approach is a decentralized architecture that offers space and freedom for creativity specific to various scientific programs, while managing a minimal amount of common structure. The new website was developed using open source technologies and web standards certified by W3C. (author)

  2. Modeling commodity salam contract between two parties for discrete and continuous time series

    Science.gov (United States)

    Hisham, Azie Farhani Badrol; Jaffar, Maheran Mohd

    2017-08-01

    In order for Islamic finance to remain competitive as the conventional, there needs a new development of Islamic compliance product such as Islamic derivative that can be used to manage the risk. However, under syariah principles and regulations, all financial instruments must not be conflicting with five syariah elements which are riba (interest paid), rishwah (corruption), gharar (uncertainty or unnecessary risk), maysir (speculation or gambling) and jahl (taking advantage of the counterparty's ignorance). This study has proposed a traditional Islamic contract namely salam that can be built as an Islamic derivative product. Although a lot of studies has been done on discussing and proposing the implementation of salam contract as the Islamic product however they are more into qualitative and law issues. Since there is lack of quantitative study of salam contract being developed, this study introduces mathematical models that can value the appropriate salam price for a commodity salam contract between two parties. In modeling the commodity salam contract, this study has modified the existing conventional derivative model and come out with some adjustments to comply with syariah rules and regulations. The cost of carry model has been chosen as the foundation to develop the commodity salam model between two parties for discrete and continuous time series. However, the conventional time value of money results from the concept of interest that is prohibited in Islam. Therefore, this study has adopted the idea of Islamic time value of money which is known as the positive time preference, in modeling the commodity salam contract between two parties for discrete and continuous time series.

  3. One year of ICTP diploma courses on-line using the automated EyA recording system

    International Nuclear Information System (INIS)

    Canessa, Enrique; Fonda, Carlo; Zennaro, Marco

    2009-03-01

    The 12-month pre-Ph.D ICTP Diploma Courses in the fields of Condensed Matter Physics, High Energy Physics, Mathematics, Earth System Physics and Basics Physics have been recorded using the automated, low cost recording system called EyA developed in-house. We discuss the technical details on how these recordings were implemented, together with some web usage statistics and students feedback. As yet, no similar endeavor has been made to put on-line a complete high-level Diploma Programme, due to the high costs involved when using alternative recording solutions. These recordings are freely available on the website www.ictp.tv. (author)

  4. Accelerator driven systems for energy production and waste incineration: Physics, design and related nuclear data

    International Nuclear Information System (INIS)

    Herman, M.; Stanculescu, A.; Paver, N.

    2003-01-01

    This volume contains the notes of lectures given at the workshops 'Hybrid Nuclear Systems for Energy Production, Utilisation of Actinides and Transmutation of Long-lived Radioactive Waste' and 'Nuclear Data for Science and Technology: Accelerator Driven Waste Incineration', held at the Abdus Salam ICTP in September 2001. The subject of the first workshop was focused on the so-called Accelerator Driven Systems, and covered the most important physics and technological aspects of this innovative field. The second workshop was devoted to an exhaustive survey on the acquisition, evaluation, retrieval and validation of the nuclear data relevant to the design of Accelerator Driven Systems

  5. Workshop on nuclear structure and decay data: Theory and evaluation manual - Pt. 1

    International Nuclear Information System (INIS)

    Nichols, A.L.; McLaughlin, P.K.; p.mclaughlin@iaea.org

    2004-11-01

    A two-week Workshop on Nuclear Structure and Decay Data: Theory and Evaluation was organized and administrated by the IAEA Nuclear Data Section, and hosted at the Abdus Salam International Centre for Theoretical Physics (ICTP) in Trieste, Italy from 17 to 28 November 2003. The aims and contents of this workshop are summarized, along with the agenda, list of participants, comments and recommendations. Workshop materials are also included that are freely available on CD-ROM (all relevant PowerPoint presentations and manuals along with appropriate computer codes). (author)

  6. Workshop on nuclear structure and decay data: Theory and evaluation manual - Pt. 2

    International Nuclear Information System (INIS)

    Nichols, A.L.; McLaughlin, P.K.; p.mclaughlin@iaea.org

    2004-11-01

    A two-week Workshop on Nuclear Structure and Decay Data: Theory and Evaluation was organized and administrated by the IAEA Nuclear Data Section, and hosted at the Abdus Salam International Centre for Theoretical Physics (ICTP) in Trieste, Italy from 17 to 28 November 2003. The aims and contents of this workshop are summarized, along with the agenda, list of participants, comments and recommendations. Workshop materials are also included that are freely available on CD-ROM (all relevant PowerPoint presentations and manuals along with appropriate computer codes). (author)

  7. PENGARUH PEMBERIAN AIR REBUSAN DAUN SALAM (SYZYGIUM POLYANTHUM TERHADAP PENURUNAN KADAR ASAM URAT

    Directory of Open Access Journals (Sweden)

    Aidaa Andriani

    2016-05-01

    Full Text Available Gout is a disease because of abnormalities purine metabolism (hyperuricemia. In gout treatment there are many different ways to lower uric acid levels one by utilizing existing natural vegetation. Plants or plants that can be used is the bay leaf (Syzygium polyanthum. Bay leaf contains flavonoids that can lower uric acid levels. This study intends to find out The Effect Of Water Decoction Bay Leaf (Syzygium polyanthum The Decrease Uric Acid Levels In The Work Area Health Center Paninggahan Solok 2013.This research is the method of approach Preeksperimental pretest - posttest, using total sampling method with a sample size of 10 people. The data was collected directly to the respondents by interview, observation and measurement sheet uric acid levels and blood sugar.The research found that there are differences in uric acid levels before and after giving the water decoction bay leaf. Based on the result test T there are differences in uric acid levels before and after giving the water decoction of bay leaf. Where the average uric acid levels before was 7.16 mg / dl, and after the uric acid level was 5.76 mg / dl. Then obtained p value = 0.000. Based on the results of this study concluded that consuming the water decoction of bay leaf can lower uric acid levels, because leaves contains flavanoid . For that gout sufferers is recommended to consume the water decoction of bay leaf  to control uric acid levels in the body. it is required to research more about the side effects and benefits of bay leaf.Penyakit asam urat merupakan suatu penyakit karena kelainan metabolisme purin (hiperurisemia. Untuk menurunkan kadar asam urat salah satunya dengan memanfaatkan tumbuhan alami yang ada. Tumbuhan atau tanaman yang dapat digunakan adalah daun salam. Daun salam memiliki kandungan flavonoid yang mampu menurunkan kadar asam urat. Penelitian ini bertujuan untuk mengetahui adanya Pengaruh Pemberian Air Rebusan Daun Salam Terhadap Penurunan Kadar Asam Urat

  8. Salam Dan Ungkapan Perpisahan Dalam Bahasa Inggris Dan Bahasa Sangihe (Suatu Analisis Kontrastif)

    OpenAIRE

    SRIJONO, AMELIA PRATIWI

    2017-01-01

    This title of this research is “Salam dan Ungkapan Perpisahan dalam Bahasa Inggris dan Bahasa Sangihe : Suatu Analisis Kontrastif”. The aims of this study are to identify, describe and contrast the forms and pattern of greetings and leave-takings in English and Sangiric Language. This research uses descriptive and contrastive analysis. The data in English were collected from books related to sociolinguistics, book of speaking, and source from internet, the data in Sangiric Language were co...

  9. Statement to ICTP/IAEA School of Nuclear Energy Management, 8 August 2011, Trieste, Italy

    International Nuclear Information System (INIS)

    Amano, Y.

    2011-01-01

    It is a pleasure for me to welcome you to the ICTP/IAEA School of Nuclear Energy Management. I would like to express my sincere thanks to ICTP and its Director, Professor Fernando Quevedo, and to the Government of Italy, for hosting this important event. Nuclear power is facing a major challenge throughout the world following the accident at the Fukushima Daiichi nuclear power plant in Japan five months ago. The accident, caused by an earthquake and tsunami of unprecedented severity undermined confidence in the safety of nuclear power in many countries. I saw for myself just how powerful and destructive nature can be when I visited the Fukushima Daiichi plant a few weeks ago. But I was also deeply impressed by the passion and energy of the engineers and workers at the site who are determined to restore full control over the facility. Great progress has already been made. I am also confident that the right lessons are being learned internationally. An IAEA Ministerial Conference, which I convened in Vienna in June, agreed on significant measures to improve nuclear safety, emergency preparedness and radiation protection of people and the environment throughout the world. These include strengthening IAEA Safety Standards, systematically reviewing the safety of all nuclear power plants - including by expanding the IAEA's programme of expert peer review missions - and enhancing the effectiveness of national nuclear regulatory bodies. Despite Fukushima Daiichi, global use of nuclear power will continue to grow in the coming decades. The factors that had contributed to increasing interest in nuclear power before the accident, such as persistent energy demand growth due to population growth and economic development, and concerns of climate change largely remain the same. Even the few countries which have decided to abandon nuclear power will still need a highly qualified workforce for decades to come - to run existing nuclear power plants, to decommission them and to

  10. Composição de volateis e earoma de salames nacionais tipos Italiano e Milano

    OpenAIRE

    Roger Wagner

    2007-01-01

    Resumo: Os salames são produtos cárneos fermentados e desidratados/maturados apreciados mundialmente e possuem características sensoriais peculiares, principalmente envolvendo o aroma e sabor. No Brasil este produto tem conquistado sucessivos recordes em faturamento no mercado interno, registrando R$ 265,3 milhões em vendas no ano 2005. Apesar de sua importância econômica, poucos estudos envolveram o perfil de voláteis do produto brasileiro e, nenhum deles avaliou a importância odorífera dos ...

  11. Neutrino emission by the pair, plasma, and photo processes in the Weinberg-Salam model

    International Nuclear Information System (INIS)

    Schinder, P.J.; Schramm, D.N.; Witta, P.J.; Margolis, S.H.; Tubbs, D.L.

    1986-06-01

    The results of numerical integrations of the rates and emissivities of the photo, pair, and plasma neutrino emission mechanisms in the Weinberg-Salam theory of the weak interaction are presented. The range of densities 10 gm cm -3 ≤ rho 14 gm cm -3 and the temperature range 10 8 K ≤ T ≤ 10 11 K are considered. Fitting formulae, similar to those provided by Beaudet, Petrosian, and Salpeter, which reproduce the numerical result for the total emissivity to within 20% in the temperature range 10/sup 8.2/K ≤ T ≤ 10 11 K are presented. 24 refs., 21 figs., 1 tab

  12. Efecto de productos bioactivos combinados con el biopreparado microbiano Azotofos en el crecimiento de Paspalum salam Effect of bioactive products combined with the microbial biopreparate Azotofos on the growth of Paspalum salam

    OpenAIRE

    Gertrudis Pentón; Inés Reynaldo; R Medina; G Onono

    2010-01-01

    Con el objetivo de evaluar el efecto de los productos bioactivos y su combinación con Azotofos en el crecimiento de Paspalum salam (Paspalum vaginatum Sw. cv. Salam), se realizaron dos experimentos. Se empleó un diseño en bloques al azar con tres repeticiones y se probaron los productos bioactivos: Pectimorf(r) (a base de pectinas) y BIOBRAS-16(r) (a base de brasinoesteroides), y su combinación con el biopreparado microbiano Azotofos, que consiste en una mezcla en soporte húmico de Pseudomona...

  13. Weinberg-Salam model with two Higgs doublets and the ΔI = 1/2 rule

    International Nuclear Information System (INIS)

    Branco, G.C.

    1977-01-01

    It is suggested that the modification in the Higgs sector of the Weinberg-Salam model which is required by CP violation, also provides an explanation for the ΔI = 1/2 enhancement in the non-leptonic decays of strange particles. (orig.) [de

  14. PEMANFAATAN DAUN SALAM (Eugenia polyantha SEBAGAI OBAT HERBAL DAN REMPAH PENYEDAP MAKANAN

    Directory of Open Access Journals (Sweden)

    Kun Harismah

    2017-02-01

    Full Text Available Eugenia polyantha, one of Indonesian medicine plant, often used in society as traditional medicine and also Indonesian culinary additives. Daun salam is called Indonesian bay-leaf, the leaves contain only tiny amounts of an essential oil 0.2%. As main components, eugenol, methyl chavicol, and citral have been identified. Thus application to used of Eugenia polyantha have done. The aim of the present work was the application of Eugenia polyantha for food and health in the community area of Keraton Surakarta. The results indicated that Eugenia polyantha is of particular interest, since it may be an alternative way to carry out of food flavor simultanous as herbal medicine.

  15. ISOLAMENTO E CARACTERIZAÇÃO DE STAPHLOCOCCUS XYLOSUS DE SALAMES COLONIAIS: UM ESTUDO PRELIMINAR

    Directory of Open Access Journals (Sweden)

    Andréia CIROLINI

    2009-12-01

    Full Text Available

    A pesquisa teve como objetivo isolar e caracterizar cepas de Staphylococcus xylosus de salames coloniais. As linhagens foram coletadas de 3 amostras de salames coloniais comercializadas na região central do RS. As culturas foram selecionadas em meio ágar Baird Parker e incubadas a 36°C por 48h. Foram isoladas 5 colônias de cada amostra para posterior caracterização através de coloração de Gram, teste de coagulase, catalase, crescimento a concentração de 10% e 15% de NaCl em ágar nutriente e crescimento à temperatura de 15°C e 45°C em caldo BHI (Brain Heart Infusion. Para identifi cação do micro-organismo foi aplicado o kit Api Staph (Biomérieux. Através das análises realizadas, as cepas apresentaram características típicas do Staphylococccus xylosus como Gram positivo, coagulase negativo e catalase positivo, crescimento sob as diferentes concentrações de NaCl e crescimento às temperaturas de 15°C e 45°C, sendo selecionadas para posterior identifi cação no kit Api Staph. Decorrido o tempo de 24h à 35°C - 37°C, efetuou-se a leitura e interpretação dos resultados, onde das 15 cepas isoladas, 2 cepas foram identificadas como Staphylococcus xylosus.

  16. Application of Digital Terrestrial Photogrammetry in Architectural Conservation: the Mosque of Abdullah Ibn Salam of Oran

    Science.gov (United States)

    Boukerch, I.; Takarli, B.; Mahmoudi, R.; Tellai, S.; Chadli, D.

    2016-10-01

    Studies on the architectural heritage can now be supported by three-dimensional reconstruction of actual buildings. The 3D digital model can be an effective medium for documenting the current state of historic buildings but also to create a resource for researchers who conduct their analysis on historical evolution. Architectural photogrammetry has its own specifications in relation to other photogrammetric applications, however it meets these expectations. The traditional approach requires the use of metric cameras but with the development of computational techniques, this requirement is overcome and opens the way for the use of non-metric camera. The use of the shots that is no longer restricted to the parallel configuration of bundles, the images may be convergent, horizontal or oblique. Combining and modelling several cameras increasingly powerful in resolution and stability, has great scope and the same workflow can be used in varied applications. ISPRS and ICOMOS created CIPA because they both believe that a monument can be restored and protected only when it has been fully measured and documented and when its development has been documented several times, i.e. monitored, also with respect to its environment, and stored in proper heritage information and management systems. In this paper the 3D modelling of an important cultural site using terrestrial photogrammetric techniques for architectural preservation is presented. The site is the mosque of Abdullah Ibn Salam, Built in 1880 at the initiative of Simon Kanoui, also known as the Great Synagogue of Oran was inaugurated in 1918 only. It was one of the largest and most beautiful synagogues in North Africa. It was built with stone imported from Jerusalem. This place of worship became in 1975 the mosque of Abdullah Ibn Salam who was a rich Jew of Medina who was converted to Islam. The structure is modelled using 321 oriented photos taken in five series of shots that cover all the façade and the interior of

  17. MAP, MAC, and vortex-rings configurations in the Weinberg-Salam model

    Science.gov (United States)

    Teh, Rosy; Ng, Ban-Loong; Wong, Khai-Ming

    2015-11-01

    We report on the presence of new axially symmetric monopoles, antimonopoles and vortex-rings solutions of the SU(2)×U(1) Weinberg-Salam model of electromagnetic and weak interactions. When the ϕ-winding number n = 1, and 2, the configurations are monopole-antimonopole pair (MAP) and monopole-antimonopole chain (MAC) with poles of alternating sign magnetic charge arranged along the z-axis. Vortex-rings start to appear from the MAP and MAC configurations when the winding number n = 3. The MAP configurations possess zero net magnetic charge whereas the MAC configurations possess net magnetic charge of 4 πn / e. In the MAP configurations, the monopole-antimonopole pair is bounded by the Z0 field flux string and there is an electromagnetic current loop encircling it. The monopole and antimonopole possess magnetic charges ± 4πn/e sin2θW respectively. In the MAC configurations there is no string connecting the monopole and the adjacent antimonopole and they possess magnetic charges ± 4 πn/e respectively. The MAC configurations possess infinite total energy and zero magnetic dipole moment whereas the MAP configurations which are actually sphalerons possess finite total energy and magnetic dipole moment. The configurations were investigated for varying values of Higgs self-coupling constant 0 ≤ λ ≤ 40 at Weinberg angle θW = π/4.

  18. Exotic see-saw mechanism for neutrinos and leptogenesis in a Pati-Salam model

    Energy Technology Data Exchange (ETDEWEB)

    Addazi, Andrea [Dipartimento di Fisica, Università di L’Aquila,67010 Coppito, AQ (Italy); LNGS, Laboratori Nazionali del Gran Sasso,67010 Assergi AQ (Italy); Bianchi, Massimo [Dipartimento di Fisica, Università di Roma Tor Vergata,I.N.F.N. Sezione di Roma Tor Vergata,Via della Ricerca Scientifica, 1 00133 Roma (Italy); Ricciardi, Giulia [Dipartimento di Fisica “E. Pancini”, Università di Napoli “Federico II”,Complesso Universitario di Monte Sant’Angelo, Via Cintia, 80126 Napoli (Italy); I.N.F.N. Sezione di Napoli,Complesso Universitario di Monte Sant’Angelo, Via Cintia, 80126 Napoli (Italy)

    2016-02-04

    We discuss non-perturbative corrections to the neutrino sector, in the context of a D-brane Pati-Salam-like model, that can be obtained as a simple alternative to SO(10) GUT’s in theories with open and unoriented strings. In such D-brane models, exotic stringy instantons can correct the right-handed neutrino mass matrix in a calculable way, thus affecting mass hierarchies and modifying the see-saw mechanism to what we name exotic see-saw. For a wide range of parameters, a compact spectrum of right-handed neutrino masses can occur that gives rise to a predictive scenario for low energy observables. This model also provides a viable mechanism for Baryon Asymmetry in the Universe (BAU) through leptogenesis. Finally, a Majorana mass for the neutron is naturally predicted in the model, leading to potentially testable neutron-antineutron oscillations. Combined measurements in neutrino and neutron-antineutron sectors could provide precious informations on physics at the quantum gravity scale.

  19. Efecto de productos bioactivos combinados con el biopreparado microbiano Azotofos en el crecimiento de Paspalum salam Effect of bioactive products combined with the microbial biopreparate Azotofos on the growth of Paspalum salam

    Directory of Open Access Journals (Sweden)

    Gertrudis Pentón

    2010-12-01

    Full Text Available Con el objetivo de evaluar el efecto de los productos bioactivos y su combinación con Azotofos en el crecimiento de Paspalum salam (Paspalum vaginatum Sw. cv. Salam, se realizaron dos experimentos. Se empleó un diseño en bloques al azar con tres repeticiones y se probaron los productos bioactivos: Pectimorf(r (a base de pectinas y BIOBRAS-16(r (a base de brasinoesteroides, y su combinación con el biopreparado microbiano Azotofos, que consiste en una mezcla en soporte húmico de Pseudomonas sp. y Azotobacter chroococcum. En el primer experimento se establecieron seis tratamientos a partir de los productos bioactivos, el biopreparado microbiano y su combinación. El segundo experimento consistió en probar distintos tiempos de imbibición de los propágulos en Pectimorf(r. Se obtuvo a los 30 días de la siembra una significativa superioridad en el porcentaje de esquejes enraizados en los tratamientos con BIOBRAS-16(r y Pectimorf(r, superior a 89%; mientras que el testigo no superó el 69%. La combinación del Pectimorf(r con el Azotofos aumentó el porcentaje de esquejes enraizados. En cuanto a la biomasa total acumulada, el mejor resultado se obtuvo en el tratamiento con Pectimorf (0,84 g/individuo. Con respecto al tiempo de imbibición, los tratamientos testigo hidratado y sin hidratar no superaron el 69% de esquejes enraizados, y fueron diferentes significativamente del tiempo de imbibición 60 min. que alcanzó 100%. Se concluye que el Pectimorf(r fue la mejor alternativa para estimular el crecimiento de P. vaginatum cv. Salam. Los resultados indicaron además que los esquejes deben mantenerse imbibidos en Pectimorf(r durante 60 minutosIn order to evaluate the effect of bioactive products and their combination with Azotofos on the growth of Paspalum salam (Paspalum vaginatum Sw. cv. Salam, two trials were conducted. A randomized block design was used with three repetitions and the bioactive products Pectimorf(r (based on pectins and

  20. CVC related infections reported from Salam Center for Cardiac Surgery of Khartoum

    Directory of Open Access Journals (Sweden)

    Margherita Scapaticci

    2010-06-01

    Full Text Available Introduction: Central venous catheter (CVC plays an essential part in clinical management of patients admitted in Intensive Care Unit (ICU, even though catheterization is an invasive procedure that may facilitate bacterial migration from the skin surrounding the catheter insertion site to the catheter tip, representing a risk factor for the arise of bacteraemia and sepsis. Aim of our study was to assess the prevalence of micro-organisms found as responsibles of CVC-related infections and check their correspondence with those found in blood cultures collected from the same patients. Methods: The study was conduced from April 2008 to March 2009. In this period were analysed 29 CVC samples sent from ICU to the laboratory of the Salam Center for Cardiac Surgery of Khartoum (Sudan. CVC was removed after pericatheter skin disinfection and its tip was cut, put in a sterile container and finally sent to the laboratory, where it was immersed in Brain Heart Infusion (BHI and incubated at 37°C.A first culture of the sample on Blood Agar plate was done after an incubation period of 1 hour, the second one after 24 hours. In case of bacterial growth were practiced identification and sensitivity test of the isolated bacteria. Results: Of the 29 analysed samples 38% showed bacterial growth of which 27% caused by gram positive and 73% by gram negative bacteria. The identification tests showed also that among gram positive-related infection predominated those caused by Methicillin-Resistent Staphylococcus aureus (MRSA (67%, while among the gram negative infections predominated those caused by Pseudomonas spp (57%, followed by Enterobacter spp and Serratia spp. Conclusion: All the above mentioned infections were confirmed by examination of blood cultures collected simultaneously from the same patients. Furthermore the study showed that 73% of infections affected post-operative patients rather than those waiting for surgery.

  1. AKTIVITAS ANTIBAKTERI EKSTRAK DAUN SALAM (Syzgium Polyanta DAN DAUN PANDAN (Pandanus Amaryllifolius [Antibacterial Activity Of (Syzygium Polyanta And Amaryllifolius Leaf Extracts

    Directory of Open Access Journals (Sweden)

    Murhadi

    2007-06-01

    Full Text Available The objectives of this research were to study antibacterial activities of syzgium polyanta (“Salam” and Pandanus amaryllifolius (“Pandan” leaf extracts and the effect of wet heating (1000, up to 60 min on their antibacterial activities against staphylococcus aureus, bacillus subtillis, pseudomonas aeruginosa and Escherichia coli. Salam and pandan leaves powder was extracted using hot water (700C, 2 h, ethanol, ethanol/ethylacetate (1:1, v/v, and ethlacetate bt soxhlet (3x8 h separately. Each residue was further extracted using the same solvent by shaker (250 rpm, 24 h. finally filtrates were mixed and evaporated to produce the extract. Salam leaf ethanol extract (yield 11.50% showed highest antibacterial activity especially towards P. aeruginosa (diameter of inhibitor 6.5 mm/mg and B. subtilis (6.3 mm/mg. Pandan leaf erhanol/ethylacetate extract (yield 15.61 % also showed antibacterial activity towards P. aeruginosa (4.25 mm/mg and B. subtilis (3.2 mm/mg. In general, salam leaf extracts showed higher antibacterial activity than pandan leaf extracts. Pandan and salam leaf water extracts had no antibacterial activity. Escerichia coli was more resistant to the extracts compared Staphylococcus aureus, bacillus subtilis, and pseudomonas aeruginosa. Antibacterial activity of salam leaf ethylacetate extract decreased 6.55%, lower than that of pandan leaf ethylacetate extract (18.48% after heating 1000C for 10up to 60 min.

  2. Books received. CERN Courier, Jan-Feb 1995, v. 35(1)

    International Nuclear Information System (INIS)

    Anon.

    1995-01-01

    Full text: The CERN Courier has received an impressive consignment of new books from World Scientific Publishing, and hopes to include reviews in coming months. Lectures in Particle Physics by Dan Green of Fermilab (ISBN 9810216823 HC £63, 9810216831 SC £35), imaginatively presented, World Scientific Lecture Notes - Vol.55; Instantons in Gauge Theories, edited by M. Shifman (ISBN 9810216815 HC £62, 9810218265 SC £35), a collection of reprinted papers; Development of Perturbative QCD by Guido Altarelli of CERN (ISBN 9810217021 HC£58, 981021703X SC £35), a collection of review articles, talks, and lecture notes; Salam Festschrift edited by A. AH, J. Ellis and S. Randjbar-Daemi (ISBN 9810214219 HC £80, 9810214227 SC £39), talks from a conference to honour Abdus Salam, held at ICTP, Trieste, in March 1993, and Volume 4 in World Scientific's Series in 20th Century Physics; Selected Papers of Abdus Salam (with commentary), edited by A. AH, C. Isham, T Kibble and Riazuddin (ISBN 9810216629 HC £64, 9810216637 SC £31), a fine volume for Salam admirers, Volume 5 in World Scientific's Series in 20th Century Physics; B decays (Revised, 2nd edition) edited by Sheldon Stone of Syracuse (ISBN 9810218362 HC £64, 9810218974 SC £25), a collection of contributions; A Career in Theoretical Physics by Philip W. Anderson (ISBN 981021717XHC£58, 9810217188 SC £28), a collection of articles and papers, Volume 7 in World Scientific's Series in 20th Century Physics; Knots and Physics (2nd edition) by Louis H. Kauffman of Illinois, Chicago (ISBN 9810218564 HC £64, 9810216580 SC £40), fascinating

  3. Resonance – Journal of Science Education | Indian Academy of ...

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education. Abdus Salam. Articles written in Resonance – Journal of Science Education. Volume 3 Issue 1 January 1998 pp 81-88 Reflections. Einstein's Last Dream: The Space – Time Unification of Fundamental Forces · Abdus Salam · More Details Fulltext PDF. Volume 10 ...

  4. Study on the changes of serum levels of PINP, ICTP and 25-OH-VitD3 in pre-menopausal women and their relationship with BMD changes

    International Nuclear Information System (INIS)

    Zhang Jinshan; Luo Liangping

    2010-01-01

    Objective: To study the changes of serum levels of procollagen type I N-terminal propeptide (PINP), pyridinoline cross-linked carboxy-terminal telopeptide of type I collagen (ICTP) and 25-OH-VitD 3 in premenopausal women and their relationship with changes of bone mineral density (BMD). Methods: BMD (at L 1 -L 4 and hip region) was examined with dual energy X-ray absorptiometer (DEXA) and serum levels of PINP, ICTP, 25-OH-VitD 3 were determined with RIA in 67 pre-menopausal women. Results: (1) Of the 67 women tested, 19 (28.4%) were found to be with low BMD. The mean BMD values in this group were significantly lower than those in the other 48 women. (2) The serum levels of PINP and ICTP in the 19 women with lower BMD (56.9±18.2 μg/L and 3.78±0.83 μg/L respectively) were much higher than those in the other 48 women (43.8±15.1 μg/L and 3.45±0.98 μg/L respectively, for PINP, P 0.05). The serum 25-OH-VitD 3 levels in the two groups of pre-menopausal women were not significantly different (25.6±7.8 ng/ml vs 27.4±9.2 ng/ml, P>0.05). (3) PINP levels were positively correlated with BMD values (r=0.274∼0.402, P 3 levels were not significantly correlated with BMD levels (r=-0.226∼0.083, P>0.05). PINP levels were weakly positively correlated with 25-OH-VitD 3 levels (r=0.395, P<0.05). Conclusion: There was tendency of increasing rate of bone turnover in pre-menopausal women, which might lead to development of osteoporosis. Early detection with BMD and serum markers of bone resorption (e.q. ICTP) measurement would be highly valuable for implement of prophylactic measures. (authors)

  5. Influência das condições de armazenamento sobre os pigmentos cárneos e a cor do salame italiano fatiado

    OpenAIRE

    Marches,Cristiane Michele; Cichoski,Alexandre José; Zanoelo,Everton Fernando; Dariva,Cláudio

    2006-01-01

    O consumo de produtos cárneos fatiados tem aumentado nos últimos anos, particularmente os produtos curados como o salame. Os vários tipos de salame existentes são fatiados pelas indústrias de carne e/ou pelos supermercados, sem levar em conta as possíveis alterações que possam vir a ocorrer com tal procedimento. As alterações que ocorrem nos pigmentos cárneos totais e nitrosos repercutem na cor, que é detectada pelo consumidor e influencia diretamente no consumo de produtos desta natureza. O ...

  6. Salames tipo Milano elaborados com fibras de subprodutos da produção de vinho tinto

    Directory of Open Access Journals (Sweden)

    Andressa Cristina Gaione Mendes

    2014-07-01

    Full Text Available Foram avaliados os efeitos da adição da farinha de subprodutos da produção de vinhos, em diferentes concentrações (1, 2 e 3%, na produção de salame tipo Milano. Os processos de fermentação e secagem foram acompanhados por análises físico-químicas (pH e atividade de água, químicas (acidez titulável, índice de peróxido, índice de TBARS e nitrito residual e físicas (perda de peso e os produtos acabados avaliados quanto à composição centesimal. Maiores adições de fibra reduziram (P0,05 os níveis de nitrito residual e nem os valores de índice de peróxido, porém reduziu a evolução da oxidação lipídica, medida pelo índice de TBARS, do produto durante a maturação. Apesar de promover (P0,05 os valores de umidade, proteína e lipídeos. A presença de fibras alimentares e compostos antioxidantes nas fibras da cultivar 'Syrah' permitiu a sua aplicação no processamento de salames com benefícios tecnológicos e nutricionais.

  7. Workshop on nuclear structure and decay data: Theory and evaluation, 2008

    International Nuclear Information System (INIS)

    Nichols, A.L.; McLaughlin, P.K.

    2008-06-01

    A two-week Workshop on Nuclear Structure and Decay Data under the auspices of the IAEA Nuclear Data Section was organised and held at the Abdus Salam International Centre for Theoretical Physics (ICTP) in Trieste, Italy from 28 April to 9 May 2008. This workshop constituted a further development of previous Nuclear Structure and Decay Data Workshops held in 2002, 2003, 2005 and 2006. The aims and contents of the 2008 workshop are summarized, along with the agenda, list of participants, comments and recommendations. All recent workshop material has been assembled in this INDC report, and is also freely available on CD-ROM (all relevant PowerPoint presentations and manuals along with appropriate computer codes). (author)

  8. Active learning in optics and photonics: Fraunhofer diffraction

    Science.gov (United States)

    Ghalila, H.; Ben Lakhdar, Z.; Lahmar, S.; Dhouaidi, Z.; Majdi, Y.

    2014-07-01

    "Active Learning in Optics and Photonics" (ALOP), funded by UNESCO within its Physics Program framework with the support of ICTP (Abdus Salam International Centre for Theoretical Physics) and SPIE (Society of Photo-Optical Instrumentation Engineers), aimed to helps and promotes a friendly and interactive method in teaching optics using simple and inexpensive equipment. Many workshops were organized since 2005 the year when Z. BenLakhdar, whom is part of the creators of ALOP, proposed this project to STO (Société Tunisienne d'Optique). These workshops address several issues in optics, covering geometrical optics, wave optics, optical communication and they are dedicated to both teachers and students. We focus this lecture on Fraunhofer diffraction emphasizing the facility to achieve this mechanism in classroom, using small laser and operating a slit in a sheet of paper. We accompany this demonstration using mobile phone and numerical modeling to assist in the analysis of the diffraction pattern figure.

  9. Active learning in optics for girls

    Science.gov (United States)

    Ali, R.; Ashraf, I.

    2017-08-01

    Active learning in Optics (ALO) is a self-funded program under the umbrella of the Abdus Salam International Centre for Theoretical Physics (ICTP) and Quaid-i-Azam University (QAU) to bring physical sciences to traditionally underserved Girls high schools and colleges in Pakistan. There is a significant gender disparity in physical Sciences in Pakistan. In Department of Physics at QAU, approximately 10 to 20% of total students were used to be females from past many decades, but now this percentage is increasing. To keep it up at same pace, we started ALO in January 2016 as a way to provide girls an enriching science experiences, in a very friendly atmosphere. We have organized many one-day activities, to support and encourage girls' students of government high schools and colleges to pursue careers in sciences. In this presentation we will describe our experience and lesson learned in these activities.

  10. Luciano Maiani and Jean Iliopoulos awarded the Dirac Medal

    CERN Multimedia

    2007-01-01

    Luciano Maiani, when he was Director-General of CERN. Jean Iliopoulos in 1999. (©CNRS Photothèque - Julien Quideau)On 8 August, the 2007 Dirac Medal, one of the most prestigious prizes in the fields of theoretical physics and mathematics, was awarded to Luciano Maiani, professor at Rome’s La Sapienza University and former Director-General of CERN, and to Jean Iliopoulos, emeritus Director of Research at the CNRS Laboratory of Theoretical Physics. The medal was awarded to both physicists for their joint "work on the physics of the charm quark, a major contribution to the birth of the Standard Model, the modern theory of Elementary Particles." Founded by the Abdus Salam International Centre for Theoretical Physics (ICTP) in 1985, the Dirac Medal is awarded annually on 8 August, the birthday of the famous physicist Paul Dirac, winner of the 1933 Nobel Prize for Physics. It is awarded to ...

  11. Influência das condições de armazenamento sobre os pigmentos cárneos e a cor do salame italiano fatiado Influence the storage conditions on the meats pigments and the color of the sliced italian salame

    Directory of Open Access Journals (Sweden)

    Cristiane Michele Marches

    2006-09-01

    Full Text Available O consumo de produtos cárneos fatiados tem aumentado nos últimos anos, particularmente os produtos curados como o salame. Os vários tipos de salame existentes são fatiados pelas indústrias de carne e/ou pelos supermercados, sem levar em conta as possíveis alterações que possam vir a ocorrer com tal procedimento. As alterações que ocorrem nos pigmentos cárneos totais e nitrosos repercutem na cor, que é detectada pelo consumidor e influencia diretamente no consumo de produtos desta natureza. O presente estudo teve como objetivo investigar o efeito da intensidade de luz, do oxigênio e da temperatura na conversão dos pigmentos cárneos em nitrosos, na quantidade de pigmentos cárneos totais e nitrosos e no índice de cor vermelha, nas fatias de salame tipo italiano. Tais fatias foram acondicionadas em quatro modelos de embalagens diferentes quanto à permeabilidade à luz e ao oxigênio e armazenadas durante 32 dias em temperaturas de 10 °C e 15 °C sob 930 LUX, continuamente, sendo estas condições similares às empregadas em gôndolas de supermercados. A quantidade dos pigmentos cárneos totais e nitrosos, o índice de cor vermelha (a*, determinado pelo método CIE* Lab, foram mensurados nas fatias no zero, 4º, 6º, 12º, 14º, 19º, 25º, 27º e 32º dia de armazenamento. Os resultados obtidos foram avaliados estatisticamente por análise de variância e teste de Tukey, adotando nível de confiança de 95% (p The consumption of sliced meat products has grown in the last few years, especially for cured products as pastrami. The different kinds of pastrami are sliced by meat industry or in the supermarkets, without concern on possible alterations that may occur in the product. The changes on the total and nitrous meat pigments influence the color of the product, which is detected by the consumer, and thus directly influences the consumption of this kind of product. The present study aimed to investigate the effect of light

  12. AKTIVITAS ANTIBAKTERI EKSTRAK DAUN SALAM (Syzgium Polyanta) DAN DAUN PANDAN (Pandanus Amaryllifolius) [Antibacterial Activity Of (Syzygium Polyanta And Amaryllifolius) Leaf Extracts

    OpenAIRE

    Murhadi; Suharyono AS; Susilawati

    2007-01-01

    The objectives of this research were to study antibacterial activities of syzgium polyanta (“Salam”) and Pandanus amaryllifolius (“Pandan”) leaf extracts and the effect of wet heating (1000, up to 60 min) on their antibacterial activities against staphylococcus aureus, bacillus subtillis, pseudomonas aeruginosa and Escherichia coli. Salam and pandan leaves powder was extracted using hot water (700C, 2 h), ethanol, ethanol/ethylacetate (1:1, v/v), and ethlacetate bt soxhlet (3x8 h) separately....

  13. Antibacterial Activity of Ethanolic Extract of Syzygium polyanthum L. (Salam Leaves against Foodborne Pathogens and Application as Food Sanitizer

    Directory of Open Access Journals (Sweden)

    Suzita Ramli

    2017-01-01

    Full Text Available The aim of this study was to determine antibacterial activity of S. polyanthum L. (salam leaves extract foodborne pathogens. All the foodborne pathogens were inhibited after treating with extract in disk diffusion test with range 6.67±0.58–9.67±0.58 mm of inhibition zone. The range of MIC values was between 0.63 and 1.25 mg/mL whereas MBC values were in the range 0.63 mg/mL to 2.50 mg/mL. In time-kill curve, L. monocytogenes and P. aeruginosa were found completely killed after exposing to extract in 1 h incubation at 4x MIC. Four hours had been taken to completely kill E. coli, S. aureus, V. cholerae, and V. parahaemolyticus at 4x MIC. However, the population of K. pneumoniae, P. mirabilis, and S. typhimurium only reduced to 3 log CFU/mL. The treated cell showed cell rupture and leakage of the cell cytoplasm in SEM observation. The significant reduction of natural microflora in grapes fruit was started at 0.50% of extract at 5 min and this concentration also was parallel to sensory attributes acceptability where application of extract was accepted by the panellists until 5%. In conclusion, S. polyanthum extract exhibits antimicrobial activities and thus might be developed as natural sanitizer for washing raw food materials.

  14. Antibacterial Activity of Ethanolic Extract of Syzygium polyanthum L. (Salam) Leaves against Foodborne Pathogens and Application as Food Sanitizer.

    Science.gov (United States)

    Ramli, Suzita; Radu, Son; Shaari, Khozirah; Rukayadi, Yaya

    2017-01-01

    The aim of this study was to determine antibacterial activity of S. polyanthum L. (salam) leaves extract foodborne pathogens. All the foodborne pathogens were inhibited after treating with extract in disk diffusion test with range 6.67 ± 0.58-9.67 ± 0.58 mm of inhibition zone. The range of MIC values was between 0.63 and 1.25 mg/mL whereas MBC values were in the range 0.63 mg/mL to 2.50 mg/mL. In time-kill curve, L. monocytogenes and P. aeruginosa were found completely killed after exposing to extract in 1 h incubation at 4x MIC. Four hours had been taken to completely kill E. coli , S. aureus , V. cholerae, and V. parahaemolyticus at 4x MIC. However, the population of K. pneumoniae , P. mirabilis, and S. typhimurium only reduced to 3 log CFU/mL. The treated cell showed cell rupture and leakage of the cell cytoplasm in SEM observation. The significant reduction of natural microflora in grapes fruit was started at 0.50% of extract at 5 min and this concentration also was parallel to sensory attributes acceptability where application of extract was accepted by the panellists until 5%. In conclusion, S. polyanthum extract exhibits antimicrobial activities and thus might be developed as natural sanitizer for washing raw food materials.

  15. Fate of selected pathogens in spiked «SALAME NOSTRANO» produced without added nitrates following the application of NONIT™ technology.

    Science.gov (United States)

    Cenci-Goga, B T; Karama, M; Sechi, P; Iulietto, M F; Grispoldi, L; Selvaggini, R; Ceccarelli, M; Barbera, S

    2018-02-14

    This study evaluated the effect of a novel formulation for starter culture associated with specific ripening conditions (NoNit™ technology) vs. a commercial» starter on the fate of selected pathogens and hygiene indicators during the fermentation and ripening of experimentally spiked salame nostrano (Italian dry sausage). Selected strains of Staphylococcus aureus 27R, Escherichia coli CSH26 K 12, Listeria innocua ATCC 33090 and Salmonella Derby 27 were inoculated into salami batter and challenged with two formulations of starter cultures (a commercial formulation and the NoNit™ formulation, consisting of Lactococcus lactis ssp. lactis, strain 340; L. lactis ssp. lactis, strain 16; Lactobacillus casei ssp. casei, strain 208 and Enterococcus faecium strain 614) with ripening at a low temperature. The proposed technology (NoNit™) performed better than the commercial formulation and limited the growth of spiked Escherichia coli, Staphylococcus aureus (including the production of enterotoxin), Salmonella Derby and Listeria innocua, yet maintained the basic product appearance and texture. Copyright © 2018 Elsevier Ltd. All rights reserved.

  16. Neon soft x-ray emission studies from the UNU-ICTP plasma focus operated with longer than optimal anode length

    International Nuclear Information System (INIS)

    Mohammadi, M A; Verma, R; Sobhanian, S; Wong, C S; Lee, S; Springham, S V; Tan, T L; Lee, P; Rawat, R S

    2007-01-01

    The UNU-ICTP plasma focus with a significantly longer than conventional anode can still be a reasonably good neon soft x-ray (SXR) source. The highest average neon SXR yield of 3.3 J was achieved at 3 mbar. The time difference between the two first peaks of the voltage probe signal at the radial collapse phase was found to be inversely related to the SXR yield, i.e. the smaller the time difference, the higher the yield and vice versa. The estimation of average current sheath speeds using the shadowgraphic method coupled with laser and focus peak timing signals showed that the average axial rundown speed is similar to the one obtained for the optimal anode length but the average radial compression speed is decreased significantly. The range of pressure for a good neon SXR yield, however, has become much narrower, making efficient plasma focus operation a very sensitive function of the filling gas pressure for longer than the optimal anode length

  17. Searching for realistic 4d string models with a Pati-Salam symmetry. Orbifold grand unified theories from heterotic string compactification on a Z6 orbifold

    International Nuclear Information System (INIS)

    Kobayashi, Tatsuo; Raby, Stuart; Zhang Renjie

    2005-01-01

    Motivated by orbifold grand unified theories, we construct a class of three-family Pati-Salam models in a Z6 Abelian symmetric orbifold with two discrete Wilson lines. These models have marked differences from previously-constructed three-family models in prime-order orbifolds. In the limit where one of the six compactified dimensions (which lies in a Z2 sub-orbifold) is large compared to the string length scale, our models reproduce the supersymmetry and gauge symmetry breaking pattern of 5d orbifold grand unified theories on an S1/Z2 orbicircle. We find a horizontal 2+1 splitting in the chiral matter spectra-2 families of matter are localized on the Z2 orbifold fixed points, and 1 family propagates in the 5d bulk-and identify them as the first-two and third families. Remarkably, the first two families enjoy a non-Abelian dihedral D4 family symmetry, due to the geometric setup of the compactified space. In all our models there are always some color triplets, i.e., (6,1,1) representations of the Pati-Salam group, survive orbifold projections. They could be utilized to spontaneously break the Pati-Salam symmetry to that of the Standard Model. One model, with a 5d E 6 symmetry, may give rise to interesting low energy phenomenology. We study gauge coupling unification, allowed Yukawa couplings and some of their phenomenological consequences. The E6 model has a renormalizable Yukawa coupling only for the third family. It predicts a gauge-Yukawa unification relation at the 5d compactification scale, and is capable of generating reasonable quark/lepton masses and mixings. Potential problems are also addressed, they may point to the direction for refining our models

  18. Monitoring the digital divide

    International Nuclear Information System (INIS)

    Canessa, E.; Cerdeira, H.A.; Matthews, W.; Cottrell, R.L.

    2003-05-01

    It is increasingly important to support the large numbers of scientists working in remote areas and having low-bandwidth access to the Internet. This will continue to be the case for years to come since there is evidence from PingER performance measurements that the, so-called, digital divide is not decreasing. In this work, we review the collaborative work of The Abdus Salam International Center for Theoretical Physics (ICTP) in Trieste - a leading organization promoting science dissemination in the developing world- and SLAC in Stanford, to monitor by PingER, Universities and Research Institutions all over the developing world following the recent 'Recommendations of Trieste' to help bridge the digital divide. As a result, PingER's deployment now covers the real-time monitoring of worldwide Internet performance and, in particular, West and Central Africa for the first time. We report on the results from the ICTP sites and quantitatively identify regions with poor performance, identify trends, discuss experiences and future work. (author)

  19. Monitoring the Digital Divide

    International Nuclear Information System (INIS)

    Cottrell, Les

    2003-01-01

    It is increasingly important to support the large numbers of scientists working in remote areas and having low bandwidth access to the Internet. This will continue to be the case for years to come since there is evidence from PingER performance measurements that the, so-called, digital divide is not decreasing. In this work, we review the collaborative work of The Abdus Salam International Center for Theoretical Physics (ICTP) in Trieste, a leading organization promoting science dissemination in the developing world- and SLAC in Stanford, to monitor by PingER, Universities and Research Institutions all over the developing world following the recent ''Recommendations of Trieste'' to help bridge the digital divide. As a result, PingER's deployment now covers the real-time monitoring of worldwide Internet performance and, in particular, West and Central Africa for the first time. We report on the results from the ICTP sites and quantitatively identify regions with poor performance, identify trends, discuss experiences and future work

  20. Evaluation of correct knowledge of key danger signs in pregnancy ...

    African Journals Online (AJOL)

    2015-06-01

    Bello IO, Fagbamigbe AF, Mumuni TO,. Adesina OA, Abdus-Salam AR, Ifemeje A, et al. Evaluation of correct knowledge of key danger signs in pregnancy among antenatal clinic attendees at a tertiary health facility in Nigeria.

  1. Time-reversal symmetry breaking by ac field: Effect of ...

    Indian Academy of Sciences (India)

    Author Affiliations. V E Kravtsov1 2. The Abdus Salam International Centre for Theoretical Physics, P.O. Box 586, 34100 Trieste, Italy; Landau Institute for Theoretical Physics, 2 Kosygina Street, 117940 Moscow, Russia ...

  2. Thermodynamic and surface properties of Sb–Sn and In–Sn liquid ...

    Indian Academy of Sciences (India)

    Sn liquid alloys. B C ANUSIONWU. Abdus Salam International Centre for ... is known to be toxic to the human body and causes serious environmental prob- ..... To determine the level of complex activities in the bulk of these alloys throughout.

  3. Journal of Earth System Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    SAARC Meteorological Research Centre, Dhaka, Bangladesh. Center of Excellence for Climate Change Research (CECCR), Department of Meteorology, King Abdulaziz University, Jeddah, Saudi Arabia. Centre for Global Change, Dhaka, Bangladesh. Earth System Physics Section, Abdus Salam International Center for ...

  4. Salame elaborado com Lactobacillus plantarum fermentado em meio de cultura de plasma suíno Salami sausage prepared with Lactobacillus plantarum fermented in porcine plasma culture medium

    Directory of Open Access Journals (Sweden)

    Paulo Cezar Bastianello Campagnol

    2007-12-01

    Full Text Available Este trabalho teve por objetivo produzir uma cultura starter com uma cepa de Lactobacillus plantarum em um meio de cultura com plasma suíno e verificar a viabilidade de sua aplicação em salame. O meio de cultura foi preparado com plasma suíno e água destilada (1:1, pH 11,0. Após a esterilização, 300 mL foram adicionados de 400 mL de uma solução estéril de glicose e difosfato de potássio. A cepa de Lb. plantarum foi semeada no meio de cultura e submetida à fermentação em pH 7,0, durante 36 horas (100 rpm, 37 ± 0,1 °C. Ao alcançar a fase estacionária, a cultura foi centrifugada e ressuspendida em leite desnatado estéril, liofilizada e aplicada em salame. A influência do inóculo foi avaliada nas características microbiológicas, físico-químicas e sensoriais de salames. Os resultados encontrados foram comparados com tratamentos sem adição de cultura starter e com uma cultura comercial. O microrganismo Lb. plantarum teve um crescimento máximo de 9,82 Log UFC.mL-1, após 30 horas de fermentação. Os salames elaborados com a cultura starter produzida apresentaram uma queda de pH significativamente maior, e menor valor de atividade de água que os demais tratamentos. O microrganismo Lb. plantarum melhorou significativamente o sabor dos salames.The purpose of this work was to produce a starter culture with a strain of Lactobacillus plantarum in a porcine plasma culture medium and ascertain the viability of applying it in salami sausage. The culture medium was prepared with porcine plasma and distilled water (1:1, pH 11.0. After sterilization, 300 mL were added of 400 mL of a sterile solution of glucose and potassium diphosphate. The Lb. plantarum strain was inoculated into the culture medium and subjected to fermentation at pH 7.0 for 36 hours (100 rpm, 37 ± 0.1 °C. When the stationary phase was reached, the culture was centrifuged and resuspensed in sterile skimmed milk, lyophilized and applied to salami. An evaluation was

  5. Acceptability of Iron- and Zinc-Biofortified Pearl Millet (ICTP-8203)-Based Complementary Foods among Children in an Urban Slum of Mumbai, India.

    Science.gov (United States)

    Huey, Samantha Lee; Venkatramanan, Sudha; Udipi, Shobha A; Finkelstein, Julia Leigh; Ghugre, Padmini; Haas, Jere Douglas; Thakker, Varsha; Thorat, Aparna; Salvi, Ashwini; Kurpad, Anura V; Mehta, Saurabh

    2017-01-01

    Biofortification, a method for increasing micronutrient content of staple crops, is a promising strategy for combating major global health problems, such as iron and zinc deficiency. We examined the acceptability of recipes prepared using iron- and zinc-biofortified pearl millet (FeZnPM) (~80 ppm Fe, ~34 ppm Zn, varietal ICTP-8203), compared to conventional pearl millet (CPM) (~20 ppm Fe, ~19 ppm Zn) in preparation for an efficacy trial. Our objective was to examine the acceptability of FeZnPM compared to CPM among young children and mothers living in the urban slums of Mumbai. Standardized traditional feeding program recipes ( n  = 18) were prepared with either FeZnPM or CPM flour. The weight (g) of each food product was measured before and after consumption by children ( n  = 125) and the average grams consumed over a 3-day period were recorded. Mothers ( n  = 60) rated recipes using a 9-point hedonic scale. Mean intakes and hedonic scores of each food product were compared using t -tests across the two types of pearl millet. There were no statistically significant differences in consumption by children (FeZnPM: 25.27 ± 13.0 g; CPM: 21.72 ± 6.90 g) across the food products ( P  = 0.28). Overall mean hedonic scores for all recipes were between 7 to 9 points. CPM products were rated higher overall (8.22 ± 0.28) compared to FeZnPM products (7.95 ± 0.35) ( P  = 0.01). FeZnPM and CPM were similarly consumed and had high hedonic scores, demonstrating high acceptability in this population. These results support using these varieties of pearl millet in a proposed trial [http://Clinicaltrials.gov ID: NCT02233764; Clinical Trials Registry of India (CTRI), reference number REF/2014/10/007731, CTRI number CTRI/2015/11/006376] testing the efficacy of FeZnPM for improving iron status and growth.

  6. Mathematical control theory

    International Nuclear Information System (INIS)

    Agrachev, A.A.

    2002-01-01

    This volume is based on the lecture notes of the minicourses given in the frame of the school on Mathematical Control Theory held at the Abdus Salam ICTP from 3 to 28 September 2001. Mathematical Control Theory is a rapidly growing field which provides strict theoretical and computational tools for dealing with problems arising in electrical and aerospace engineering, automatics, robotics, applied chemistry, and biology etc. Control methods are also involved in questions pertaining to the development of countries in the South, such as wastewater treatment, agronomy, epidemiology, population dynamics, control of industrial and natural bio-reactors. Since most of these natural processes are highly nonlinear, the tools of nonlinear control are essential for the modelling and control of such processes. At present regular courses in Mathematical Control Theory are rarely included in the curricula of universities, and very few researchers receive enough background in the field. Therefore it is important to organize specific activities in the form of schools to provide the necessary background for those embarking on research in this field. The school at the Abdus Salam ICTP consisted of several minicourses intended to provide an introduction to various topics of Mathematical Control Theory, including Linear Control Theory (finite and infinite-dimensional), Nonlinear Control, and Optimal Control. The last week of the school was concentrated on applications of Mathematical Control Theory, in particular, those which are important for the development of non-industrialized countries. The school was intended primarily for mathematicians and mathematically oriented engineers at the beginning of their career. The typical participant was expected to be a graduate student or young post-doctoral researcher interested in Mathematical Control Theory. It was assumed that participants have sufficient background in Ordinary Differential Equations and Advanced Calculus. The volume

  7. Evaluation Of The Hydraulic Connection Between The Surface Water And The Groundwater Along El-Salam Canal, North Eastern Coast, Egypt

    International Nuclear Information System (INIS)

    Ismail, Y.L.; Ismail, N.A.; Abdel Mogheeth, S.M.; Salem, W.M.

    2012-01-01

    In the present study, the interconnection between the surface water of El-Salam Canal and the shallow groundwater in the adjacent aquifer has been discussed using both the environmental isotopes and the chemical analyses of the different water bodies along the canal trajectory from Faraskour in the west to Balousa in the east. The isotopic techniques were applied to investigate this relationship and to estimate the possible contribution from various sources such as groundwater, sea water and/or irrigation water, and finally to determine the extent of mixing between El-Salam Canal and the adjacent aquifers. Since the groundwater in the area is saline (more than 10000 ppm) while the mixed canal water is mainly fresh (less than 1000 ppm), the interconnection between the canal water and surrounding shallow groundwater leads to one of the following two hydrologic processes; seepage from the canal water to the shallow groundwater which means fresh water losses or leakage from the groundwater into the surface water which means water quality deterioration The present study aims to detect the hydraulic interconnection between the two water bodies by using environmental isotope techniques as well as detailed chemical analysis. For this purpose, 31 water samples from both surface water and groundwater were collected and analyzed for 18 O and 2 H contents as well as 44 representative water samples were collected and analyzed for the chemical components (anions and cations) as a major ions and minor constituents. The distribution of the analyzed samples on the 18 O vs. D diagram indicated that the samples could be classified into three genetic groups representing different sources of water. The first group reflects a contribution from evaporated rain water prior to infiltration to the groundwater, the second group represents a mixing trend between both of El-Farma drain water and El-Manzala lake water with the groundwater which have enriched isotopic values as well as high

  8. Efectos de la desnutrición sobre la colagenización de anastomosis intestinales: análisis de procolágeno y telopéptido carboxiterminal mediante radioinmunoanálisis Role of malnutrition in intestinal anastomosis collagenization: an analysis of procollagen (PINP and carboxyterminal telopeptide (ICTP by radioimmunoassay

    Directory of Open Access Journals (Sweden)

    J. M. Álamo

    2007-02-01

    Full Text Available Introducción: diversos factores influyen en la cicatrización correcta de las suturas intestinales tras la práctica de una resección intestinal. Uno de los factores más implicados es el estado nutricional del paciente. Objetivos: evaluar la influencia de la desnutrición inducida sobre la viabilidad de una anastomosis intestinal primaria mediante el análisis del procolágeno (PINP como marcador de la síntesis de colágeno I, y del telopéptido carboxiterminal del colágeno I (ICTP como marcador de la destrucción del mismo. Métodos: 40 ratas Wistar y material de radioinmunoensayo. Métodos: diseñamos 2 grupos de ratas, 20 animales por cada grupo: grupo control (A y grupo "desnutrición" (B. Se analiza PINP e ICTP mediante RIA sobre tejido colónico homogeneizado, preanastomótico y anastomótico. Resultados: existen unos niveles menores de PINP en el colon de las ratas del grupo B comparado con el colon del grupo A (0,3620 y 0,4340 µg/g respectivamente (p = 0,032. Hay un mayor nivel de ICTP analizado en el colon del grupo B (0,9545 en contraposición a 0,8460 µg/g en el grupo A (p = 0,875. En las anastomosis del grupo B existe una menor síntesis de PINP en comparación con el grupo A (0,376 y 0,468 µg/g respectivamente, p = 0,002. Conclusiones: la anastomosis colónica incrementa los niveles de PINP e ICTP en el tejido cicatricial (p = 0,000; la malnutrición reduce la colagenización de las anastomosis (p = 0,000.Introduction: some clinical, anatomo-pathological, and technical factors influence the correct healing of intestinal suture following an intestinal resection. One of the most influential factors is patient nutritional status. Objectives: to evaluate the influence of malnutrition on the viability of primary intestinal anastomosis by the analysis of collagen I deposition. Methods: 40 Wistar rats, radioimmunoassay material. We used 2 groups of rats, 20 animals in each group: a control group (A and a "malnutrition" group (B

  9. Penyuluhan dan Pendampingan Pengolahan Limbah Peternakan Sapi Potong di Kelompok Tani Ternak Sido Mulyo Dusun Pulosari, Desa Jumoyo, Kecamatan Salam, Kabupaten Magelang

    Directory of Open Access Journals (Sweden)

    Nanung Agus Fitriyanto

    2015-09-01

    Full Text Available Society services activity on cattle waste management system have been implemented in Sido Mulyo Livestock Farmers Group at Pulosari, Jumoyo, Salam, Magelang. Animal byproducts that consist of feces and urine of cattle wastewas processed into organic fertilizer compost and liquid fertilizer. Sido Mulyo Livestock Farmer Group has one unit of 20 m3 biodigester to accommodate the feces from approximately 30 cattle owned by the group member. Biogas has been used as a fuel source for family group members located around the cage. Slurry resulted from anaerobic digestion of biodigester disposed to pastures located on the right side of the cage. Ownership system in the groupis every group member hasa responsibility for taking care of their own cattle. The number of livestock owned by each member of the SidoMulyoLivestock Farmers Group ranged between 1 to 4 cattle. Society services methods that have been implemented was in the form of mentoring for a member of the Sido Mulyogroup.The other activities that have been implemented was the training and development of cattle industry, especially the handling of livestock waste in the form of feces, urine, and the feed residue. The activities was continued by the manufacture of compost packaging design, followed by the last series of activities such as monitoring and program development. The enthusiasm of the group members in joining to the extension activities is very good. The timing of the extension are determined in the afternoon after members of the group have finished searching feed for their cattle. The sustainability forwaste processing into organic fertilizer compost and liquid organic fertilizer becomes a major concern, because it is highly dependent on consumer demand.

  10. Changes in snow cover over China in the 21st century as simulated by a high resolution regional climate model

    International Nuclear Information System (INIS)

    Shi Ying; Gao Xuejie; Wu Jia; Giorgi, Filippo

    2011-01-01

    On the basis of the climate change simulations conducted using a high resolution regional climate model, the Abdus Salam International Centre for Theoretical Physics (ICTP) Regional Climate Model, RegCM3, at 25 km grid spacing, future changes in snow cover over China are analyzed. The simulations are carried out for the period of 1951–2100 following the IPCC SRES A1B emission scenario. The results suggest good performances of the model in simulating the number of snow cover days and the snow cover depth, as well as the starting and ending dates of snow cover to the present day (1981–2000). Their spatial distributions and amounts show fair consistency between the simulation and observation, although with some discrepancies. In general, decreases in the number of snow cover days and the snow cover depth, together with postponed snow starting dates and advanced snow ending dates, are simulated for the future, except in some places where the opposite appears. The most dramatic changes are found over the Tibetan Plateau among the three major snow cover areas of Northeast, Northwest and the Tibetan Plateau in China.

  11. Sensitivity of Horn of Africa Rainfall to Regional Sea Surface Temperature Forcing

    Directory of Open Access Journals (Sweden)

    Zewdu T. Segele

    2015-05-01

    Full Text Available The Abdus Salam International Center for Theoretical Physics (ICTP version 4.4 Regional Climate Model (RegCM4 is used to investigate the rainfall response to cooler/warmer sea surface temperature anomaly (SSTA forcing in the Indian and Atlantic Oceans. The effect of SSTA forcing in a specific ocean basin is identified by ensemble, averaging 10 individual simulations in which a constant or linearly zonally varying SSTA is prescribed in individual basins while specifying the 1971–2000 monthly varying climatological sea surface temperature (SST across the remaining model domain. The nonlinear rainfall response to SSTA amplitude also is investigated by separately specifying +1K, +2K, and +4K SSTA forcing in the Atlantic and Indian Oceans. The simulation results show that warm SSTs over the entire Indian Ocean produce drier conditions across the larger Blue Nile catchment, whereas warming ≥ +2K generates large positive rainfall anomalies exceeding 10 mm·day−1 over drought prone regions of Northeastern Ethiopia. However, the June–September rainy season tends to be wetter (drier when the SST warming (cooling is limited to either the Northern or Southern Indian Ocean. Wet rainy seasons generally are characterized by deepening of the monsoon trough, east of 40°E, intensification of the Mascarene high, strengthening of the Somali low level jet and the tropical easterly jet, enhanced zonal and meridional vertically integrated moisture fluxes, and steeply vertically decreasing moist static energy. The opposite conditions hold for dry monsoon seasons.

  12. Aminas bioativas e características físico-químicas de salames tipo italiano Bioactive amines and physico-chemical characteristics of Italian sausages

    Directory of Open Access Journals (Sweden)

    J. Caccioppoli

    2006-08-01

    Full Text Available Amostras de seis lotes de sete marcas de salames tipo italiano foram analisadas quanto a aminas bioativas e características físico-químicas de qualidade. Oito das 10 aminas pesquisadas foram detectadas em todas as amostras com teores totais de 28,33 a 53,27mg/100g. A tiramina foi a amina predominante seguida da putrescina e da cadaverina. Todas as marcas apresentaram teores de tiramina capazes de causar efeito tóxico em indivíduos sensíveis dependendo da quantidade ingerida. Duas marcas apresentaram também teores potencialmente tóxicos de histamina e de feniletilamina. Nenhuma das marcas atendeu à legislação em pelo menos um parâmetro físico-químico. Os teores de umidade e de açucares totais foram as características com maior percentual de não-atendimento. Os teores de cinzas variaram de 5,54 a 7,12g/100g, sendo os cloretos 66 a 79% desses teores. As amostras apresentaram valores de pH de 4,86 a 5,78, acidez de 16,61 a 55,03ml NaOH N/100g e índice de peróxidos de não detectado a 334,82mEq/kg.Six batches of seven brands of Italian sausages purchased in Belo Horizonte, MG were analyzed for bioactive amines and physico-chemical characteristics. Eight out of 10 amines investigated were detected in every sample with total levels varying from 28.33 to 53.27mg/100g. Tyramine was the predominant amine followed by putrescine and cadaverine. Every brand contained toxic tyramine levels for sensitive individuals depending on the amount of sausage consumption. Two brands also contained toxic levels of histamine and phenylethylamine. No brand was in conformity to legislation levels for at least one physico-chemical parameter. The highest discrepancies to legislation levels were observed for moisture and total sugar contents. The levels of ash varied from 5.54 to 7.12g/100g, with chlorides representing 66 to 79% of the levels.The pH varied from 4.86 to 5.78, acidity from 16.61 to 55.03ml NaOH N/100g and peroxide values from 0.0 (no detected

  13. Survival of Listeria monocytogenes in low acid italian sausage produced under brazilian conditions Sobrevivência de Listeria monocytogenes em salame tipo italiano de baixa acidez, produzido sob condições brasileiras de fabricação

    Directory of Open Access Journals (Sweden)

    Roberto Degenhardt

    2007-06-01

    Full Text Available Dry sausages have been considered ready-to-eat products with low risk of causing listeriosis due to the hurdles created during the manufacturing process such as low pH and a w, high salt concentration and presence of lactic acid bacteria (LAB. However, several studies have detected survival of Listeria monocytogenes in these products and also shown that process parameters, LAB and L. monocytogenes strains directly influence the results. In this work, survival of the pathogen in sausages prepared with three different formulations (one standard formulation, one formulation added of Lactobacillus plantarum and one added of 2% sodium lactate, using the manufacturing process usually employed in Brazil, was evaluated. Naturally contaminated sausages presented a small increase in the counts of L. monocytogenes in the first days of the process, followed by a gradual decrease until the end of the process. In experimentally contaminated samples containing L. plantarum, the reduction of counts of L. monocytogenes during processing was considerable, but there wasn´t significant differences between the treatments.Salames têm sido considerados produtos prontos para o consumo com baixo risco de provocar listeriose devido aos obstáculos criados no processo de fabricação e suas características de pH e atividade água baixos, alta concentração de sal e presença de bactérias lácticas. Entretanto, a sobrevivência de Listeria monocytogenes nesta classe de produtos é verificada e estudos de processo visando à redução da contaminação por este patógeno, têm demonstrado que particularidades como variação dos parâmetros de processo, cepas de bactérias lácticas e de L. monocytogenes influenciam diretamente os resultados. Neste estudo três formulações foram avaliadas (uma padrão, uma com inoculação da cultura Lactobacillus plantarum e outra com adição 2% de lactato de sódio empregando parâmetros de processo comumente praticados no Brasil

  14. Moduli spaces in algebraic geometry

    International Nuclear Information System (INIS)

    Goettsche, L.

    2000-01-01

    This volume of the new series of lecture notes of the Abdus Salam International Centre for Theoretical Physics contains the lecture notes of the School on Algebraic Geometry which took place at the Abdus Salam International Centre for Theoretical Physics from 26 July to 13 August 1999. The school consisted of 2 weeks of lecture courses and one week of conference. The topic of the school was moduli spaces. More specifically the lectures were divided into three subtopics: principal bundles on Riemann surfaces, moduli spaces of vector bundles and sheaves on projective varieties, and moduli spaces of curves

  15. Atividade proteolítica e lipolítica de bactérias lácticas isoladas de salames artesanais / Proteolytic and lipolytic activity of lactic acid bacteria isolated from artisanal sausages

    OpenAIRE

    Danielle Carpiné; João Luiz Andreotti Dagostin; Herta Stutz Dalla Santa; David Chacón Alvarez; Nelcindo Nascimento Terra; Osmar Roberto Dalla Santa

    2010-01-01

    Algumas cepas de bactérias lácticas de produtos cárneos fermentados sintetizam proteases e lipases. Estas enzimas contribuem para a formação do aroma e promovem alterações desejáveis na textura e flavour do produto. O objetivo desta pesquisa foi verificar a atividade proteolítica e lipolítica de 46 cepas de bactérias lácticas isoladas de salames obtidos por fermentação espontânea. A atividade proteolítica foi testada em dois meios contendo caseína e extrato de carne. Para os ensaios de verifi...

  16. Ideals and realities selected essays

    CERN Document Server

    Salam, Abdus; Lai, C H

    1984-01-01

    This is a collection of writings of Professor Abdus Salam, Nobel Laureate of Physics, 1979. The writings touch on many different themes, and discuss the social and economic dimensions of science. Difficulties faced by scientists in developing countries and their solutions are also given some insightful analysis. There are also interesting accounts of the International Centre for Theroetical Physics, Trieste, Italy that Professor Salam founded, and science in Islamic nations.

  17. Rosemary extract and celery-based products used as natural quality enhancers for colonial type salami with different ripening times Extrato de alecrim e produtos derivados do aipo como agentes naturais potencializadores da qualidade de salames coloniais com diferentes tempos de maturação

    Directory of Open Access Journals (Sweden)

    Teresinha Marisa Bertol

    2012-12-01

    Full Text Available This study aimed to evaluate the use of rosemary (Rosmarinus officinalis extract (RE, celery (Apium graveolis, and low levels of NO3 and NO2 as natural agents to enhance the quality of colonial salami. Salami was produced according to three treatments: (A Control: 0.1% curing salt; (B Rosemary: 0.05% curing salt + 0.5% RE (rosemary extract; and (C Rosemary+celery: 0.14% Veg 503 + 0.27% Veg 504 (sea salt plus celery + 0.5% of RE (rosemary extract. There was no effect (P > 0.05 of the treatments on water activity, Na content, and residual NO3 and NO2. Fatty acids C18:2 and C20:4 were reduced (P Objetivou-se avaliar o efeito do extrato de alecrim (EA; Rosmarinus officinalis e do aipo (Apium graveolis e de baixos níveis de adição de NO3 e NO2, como agentes naturais potencializadores da qualidade dos salames coloniais. Foram produzidos salames de acordo com três tratamentos: (A Controle: 0,1% de sal de cura; (B Alecrim: 0,05% de sal de cura + 0,5% de EA; (C Alecrim+aipo: 0,14% de Veg 503 + 0,27% de Veg 504 (sal marinho e aipo + 0,5% de EA. Não houve efeito (p > 0,05 dos tratamentos sobre o conteúdo de Na, atividade de água e NO3 e NO2 residuais. Houve redução (p < 0,05 dos ácidos graxos C18:2 e C20:4 durante o período de maturação no tratamento Controle, indicando sua possível oxidação. O uso do aipo resultou em baixo (p < 0,05 pH no salame. A redução da adição de NO3 e NO2 resultou em salames com coloração mais clara (valores de L* mais elevados, p < 0,05 aos 12 dias de maturação. Conclui-se que o aipo foi efetivo como fonte de NO3 e NO2 para desenvolvimento da cor, mas o baixo pH do produto indica a necessidade de melhor avaliar sua utilização em salames fermentados. Os salames produzidos com EA poderão apresentar diferencial de qualidade pela menor oxidação das gorduras, mas isto necessita ser confirmado em estudo futuros.

  18. Microbiota of sausages obtained by spontaneous fermentation produced in the South of Brazil Microbiota de salames obtidos por fermentação espontânea produzidos no Sul do Brasil

    Directory of Open Access Journals (Sweden)

    Osmar Roberto Dalla Santa

    2012-12-01

    Full Text Available The study of the ecology of fermented sausage is fundamental to understand the physical and chemical changes that happen during fermentation and maturation. The aim of the present study was to determine the microbiological characteristics of sausages produced by spontaneous fermentation. Fifty samples of sausages produced in the South of Brazil by different small manufacturers were analyzed for the following microbiota: aerobic mesophilic bacteria; Micrococcaceae; mold and yeast; lactic acid bacteria; total and fecal coliforms; coagulase-positive Staphylococcus, and Salmonella. In most samples (72%, the count of lactic bacteria was higher than 6 log10 cfu.g-1, and the samples with the highest counts were above 8 log10 cfu.g-1. The counts of Micrococcaceae in most samples were between 5 log10 and 7 log10 cfu.g-1. With respect to the presence of molds and yeasts, there was a significant variation among the samples with counts ranging from 2 log10 cfu.g-1 and 6 log10 cfu.g-1. From the data obtained, it was possible to conclude that 24% of the analyzed samples did not comply with the current law in Brazil since the levels of fecal coliforms or coagulase-positive Staphylococcus exceeded the maximum limit allowed.O estudo da ecologia de salames fermentados faz-se necessário para entender as mudanças físicas e químicas que ocorrem durante a fermentação e maturação. O objetivo deste trabalho foi determinar as características microbiológicas de salames produzidos por fermentação espontânea. Foram analisadas cinquenta amostras de salames de diferentes pequenas indústrias em relação à seguinte microbiota: bactérias aeróbias mesófilas; Micrococcaceae; bolores e leveduras; bactérias lácticas; coliformes totais e fecais; Staphylococcus coagulase positiva; e Salmonella. Na grande maioria das amostras (72%, a presença de bactérias lácticas foi superior a 10(6 ufc.g-1, sendo que as amostras com as maiores contagens tiveram quantidades

  19. Análise físico-química de salames coloniais comercializados no município de Toledo, Estado do Paraná=Physical-chemical analysis of colonial italian type salami commercialized in Toledo, Paraná state.

    Directory of Open Access Journals (Sweden)

    Cristiana da Silva

    2011-07-01

    Full Text Available A imigração italiana no Oeste do Paraná contribuiu para o desenvolvimento de pequenas indústrias de produtos cárneos. O salame italiano colonial é um importante produto cárneo comercializado na região Oeste do Paraná, neste sentido é necessária a avaliação da qualidade deste produto. O objetivo deste trabalho é verificar se a composição centesimal destes salames coloniais está em conformidade com a legislação brasileira e com as informações contidas nos rótulos destes produtos. Quatro diferentes marcas de salames coloniais produzidos na região de Toledo, Estado do Paraná, e uma marca de salame industrializado foram avaliadas, neste trabalho, quanto aos teores de umidade, cinzas, proteínas, lipídios e colesterol. Os resultados mostraram que há diferença entre os valores apresentados nas informações nutricionais do rótulo e os valores determinados neste trabalho, com exceção do salame industrializado. Os teores de umidade foram maiores do que os teores máximos preconizados pela legislação. Por outro lado, os teores de proteínas foram menores que os valores mínimos, mas apenas os teores de gordura concordaram com os valores exigidos pela legislação brasileira. As análises de colesterol mostraram que os valores são inferiores àqueles descritos nos rótulos quando os mesmos os contêm. De acordo com as composições dos salames e a legislação brasileira, tais salames não poderiam ser enquadrados como salames italianos.Italian immigration in the west of Paraná State contributed for the development of small meat industries. The colonial Italian-type salami is one of the main commercialized meat products in this region, therefore making necessary its quality evaluation. The aim of this work is to verify whether the composition of the colonial salami is in accordance with Brazilian law, and the nutritional facts information on the labels of these products. Four different marks of colonial Italian-type salami

  20. lEinstein's Last Dream: The Space - Time Unification of ...

    Indian Academy of Sciences (India)

    lEinstein's Last Dream: The Space - Time. Unification of Fundamental Forces. Abdus Salam. 1. From the earliest times, man's dream has been to comprehend the complexity of nature in terms of as few unifying concepts as possible. In this context, in the history of physics, three names stand together; those of Newton, ...

  1. The corrections to scaling within Mazenko's theory in the limit of low ...

    Indian Academy of Sciences (India)

    The corrections to scaling considered here follows from the departures of the initial condition from the scaling morphology. ... The Abdus Salam International Centre for Theoretical Physics, P.O. Box 586, Strada Costiera 11, Trieste, Italy; National University of Lesotho, Faculty of Science and Technology, Department of ...

  2. Einstein's Last Dream: The Space–Time Unification of Fundamental ...

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 3; Issue 1. Einstein's Last Dream: The Space – Time Unification of Fundamental Forces. Abdus Salam. Reflections Volume 3 Issue 1 January 1998 pp 81-88. Fulltext. Click here to view fulltext PDF. Permanent link:

  3. Resonance – Journal of Science Education | Indian Academy of ...

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 10; Issue 12. Einstein's Last Dream: The Space - Time Unification of Fundamental Forces. Abdus Salam. Volume 10 Issue 12 December 2005 pp 246-253. Fulltext. Click here to view fulltext PDF. Permanent link:

  4. Browse Author Index

    African Journals Online (AJOL)

    , M · Abdulsalami, MS · Abdurahman, A · Abdus-salam, N · Abiola, M · Aboua, F · Abowei, J F · Abowei, J · Abowei, JFM · Abu, H · Abu, J O · Abu, OMG · Abu, SO · Abubakar, A · Abubakar, M · Abubakar, MK · Acholonu, VN

  5. La luz pesada

    OpenAIRE

    Hoeneisen, Bruce

    1984-01-01

    James Clerk Maxwell unificó electricidad y magnetismo. Un siglo después Steven Weinberg y Abdus Salam unifican las interacciones electromagnética y débil. Relatamos los avances de la física que hicieron posible esta nueva síntesis y describimos brevemente- la teoría electrodebil.

  6. Editorial

    Indian Academy of Sciences (India)

    2017-08-28

    Aug 28, 2017 ... tional theory computer packages) and the Abdus Salam International Centre for Theoretical. Physics in Trieste, Italy, decided .... uses computers), utilizing approximations and techniques such as perturbation theory. ...... tral Drugs Standard Control Organization (CDSCO) to take a closer look at this matter.

  7. Tunneling of trapped-atom Bose condensates

    Indian Academy of Sciences (India)

    Tunneling of trapped-atom Bose condensates. SUBODH R SHENOY. Abdus Salam International Centre for Theoretical Physics, P.O. Box 586, Trieste 34100, Italy. Abstract. We obtain the dynamics in number and phase difference, for Bose condensates that tun- nel between two wells of a double-well atomic trap, using the ...

  8. Pattern formations in chaotic spatio-temporal systems

    Indian Academy of Sciences (India)

    Department of Physics, Beijing Normal University, Beijing 100875, China; Department of Basic Science, Beijing University Posts & Telecommunications, Beijing 100876, China; The Abdus Salam International Centre for Theoretical Physics, P.O. Box 586, 34100 Trieste, Italy; Institute of Applied Physics and Computational ...

  9. Editorial -RE-SONANCE--IDe-ce-mber

    Indian Academy of Sciences (India)

    been able to provide something more than a bird's eye view of the work and significance of the scientist concerned. To my mind, to mention just a few, the issues honoring Dorothy. Hodgkin, J B S Haldane, Max Delbriick, J J Thomson, Abdus Salam, Homi Bhabha, C V. Raman, S Chandrasekhar, Erwin Schrodinger, Albert ...

  10. Time-reversal symmetry breaking by ac field: Effect of ...

    Indian Academy of Sciences (India)

    Time-reversal symmetry breaking by ac field: Effect of commensurability in the frequency domain. V E KRAVTSOV. Present address: The Abdus Salam International Centre for Theoretical Physics, P.O. Box 586, 34100. Trieste, Italy. Landau Institute for Theoretical Physics, 2 Kosygina Street, 117940 Moscow, Russia.

  11. Ritual and Political Critique: Tuan Guru's Subversive Pietism ...

    African Journals Online (AJOL)

    Shaykh 'Abdullah ibn Qadi 'Abdus Salam (lived 1712-1807), more commonly known as Tuan Guru, was chiefly responsible for the institutionalization of Islam in Cape Town. The intellectual matrix of this institutionalization was his massive compendium of Islamic writings that was to play a central role in shaping the theology ...

  12. A note on automorphisms of the sphere complex

    Indian Academy of Sciences (India)

    Author Affiliations. Suhas Pandit1. Mathematics Section, The Abdus Salam International Center for Theoretical Physics, Trieste, Italy. Dates. Manuscript received: 5 December 2012; Manuscript revised: 17 March 2013. Proceedings – Mathematical Sciences. Current Issue : Vol. 127, Issue 5 · Current Issue Volume 127 | Issue ...

  13. lEinstein's Last Dream: The Space-Time Unifi-cation of Fundamental ...

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 10; Issue 12. Einstein's Last Dream: The Space - Time Unification of Fundamental Forces. Abdus Salam. Volume 10 Issue 12 December 2005 pp 246-253. Fulltext. Click here to view fulltext PDF. Permanent link:

  14. PREFACE: Quantum Information, Communication, Computation and Cryptography

    Science.gov (United States)

    Benatti, F.; Fannes, M.; Floreanini, R.; Petritis, D.

    2007-07-01

    The application of quantum mechanics to information related fields such as communication, computation and cryptography is a fast growing line of research that has been witnessing an outburst of theoretical and experimental results, with possible practical applications. On the one hand, quantum cryptography with its impact on secrecy of transmission is having its first important actual implementations; on the other hand, the recent advances in quantum optics, ion trapping, BEC manipulation, spin and quantum dot technologies allow us to put to direct test a great deal of theoretical ideas and results. These achievements have stimulated a reborn interest in various aspects of quantum mechanics, creating a unique interplay between physics, both theoretical and experimental, mathematics, information theory and computer science. In view of all these developments, it appeared timely to organize a meeting where graduate students and young researchers could be exposed to the fundamentals of the theory, while senior experts could exchange their latest results. The activity was structured as a school followed by a workshop, and took place at The Abdus Salam International Center for Theoretical Physics (ICTP) and The International School for Advanced Studies (SISSA) in Trieste, Italy, from 12-23 June 2006. The meeting was part of the activity of the Joint European Master Curriculum Development Programme in Quantum Information, Communication, Cryptography and Computation, involving the Universities of Cergy-Pontoise (France), Chania (Greece), Leuven (Belgium), Rennes1 (France) and Trieste (Italy). This special issue of Journal of Physics A: Mathematical and Theoretical collects 22 contributions from well known experts who took part in the workshop. They summarize the present day status of the research in the manifold aspects of quantum information. The issue is opened by two review articles, the first by G Adesso and F Illuminati discussing entanglement in continuous variable

  15. 7th International Conference on Mathematical Methods in Physics

    Science.gov (United States)

    Bonora, L.; Bytsenko, A. A.; Guimarães, M. E. X.; Helayël-Neto, J. A.

    The 7th International Conference on Mathematical Methods in Physics took place in the Centro Brasileiro de Pesquisas Físicas (CBPF/MCT), Rio de Janeiro - RJ, Brazil, from 16 to 20 April 2012, and was jointly organized by the following Institutions: Centro Brasileiro de Pesquisas Físicas (CBPF/MCT), The Abdus Salam International Centre for Theoretical Physics (ICTP, Italy), Instituto Nacional de Matemática Pura e Aplicada (IMPA, Brazil), The Academy of Sciences for the Developing World (TWAS, Italy) and The Scuola Internazionale di Studi Avanzati (SISSA,Italy). The Organizing Committees were composed by: E. ABDALLA (USP, Brazil), L. BONORA (SISSA, Italy), H. BURSZTYN (IMPA, Brazil), A. A. BYTSENKO (UEL, Brazil), B. DUBROVIN (SISSA, Italy), M.E.X. GUIMARÃES (UFF, Brazil), J.A. HELAYËL-NETO (CBPF, Brazil). Advisory Committee: A. V. ASHTEKAR (Penn State University, U.S.A.), V. M. BUCHSTABER (Steklov Mathematical Institute, Russia), L. D. FADDEEV (St. Petersburg Dept. of Steklov Mathematical Institute, Russia), I. M. KRICHEVER (Columbia Univ., U.S.A./ Landau Institute of Theoretical Physics, Russia), S. P. NOVIKOV (Univ. of Maryland, U.S.A./Landau Institute of Theoretical Physics, Russia), J. PALIS (IMPA, Brazil), A. QADIR (National University of Sciences and Technology, Pakistan), F. QUEVEDO (ICTP, Italy), S. RANDJBAR-DAEMI (ICTP, Italy), G. THOMPSON (ICTP, Italy), C. VAFA (Harvard University, U.S.A.). The Main Goal: The aim of the Conference was to present the latest advances in Mathematical Methods of Physics to researchers, young scientists and students of Latin America in general, and Brazil in particular, in the areas of High Energy Physics, Cosmology, Mathematical Physics and Applied Mathematics. The main goal was to promote an updating of knowledge and to facilitate the interaction between mathematicians and theoretical physicists, through plenary sessions and seminars. This Conference can be considered as a part of a network activity in a special effort to

  16. Regional model simulation of summer rainfall over the Philippines: Effect of choice of driving fields and ocean flux schemes

    Science.gov (United States)

    Francisco, R. V.; Argete, J.; Giorgi, F.; Pal, J.; Bi, X.; Gutowski, W. J.

    2006-09-01

    The latest version of the Abdus Salam International Centre for Theoretical Physics (ICTP) regional model RegCM is used to investigate summer monsoon precipitation over the Philippine archipelago and surrounding ocean waters, a region where regional climate models have not been applied before. The sensitivity of simulated precipitation to driving lateral boundary conditions (NCEP and ERA40 reanalyses) and ocean surface flux scheme (BATS and Zeng) is assessed for 5 monsoon seasons. The ability of the RegCM to simulate the spatial patterns and magnitude of monsoon precipitation is demonstrated, both in response to the prominent large scale circulations over the region and to the local forcing by the physiographical features of the Philippine islands. This provides encouraging indications concerning the development of a regional climate modeling system for the Philippine region. On the other hand, the model shows a substantial sensitivity to the analysis fields used for lateral boundary conditions as well as the ocean surface flux schemes. The use of ERA40 lateral boundary fields consistently yields greater precipitation amounts compared to the use of NCEP fields. Similarly, the BATS scheme consistently produces more precipitation compared to the Zeng scheme. As a result, different combinations of lateral boundary fields and surface ocean flux schemes provide a good simulation of precipitation amounts and spatial structure over the region. The response of simulated precipitation to using different forcing analysis fields is of the same order of magnitude as the response to using different surface flux parameterizations in the model. As a result it is difficult to unambiguously establish which of the model configurations is best performing.

  17. Temperature dependence of trapping effects in metal gates/Al2O3/InGaAs stacks

    Science.gov (United States)

    Palumbo, F.; Pazos, S.; Aguirre, F.; Winter, R.; Krylov, I.; Eizenberg, M.

    2017-06-01

    The influence of the temperature on Metal Gate/Al2O3/n-InGaAs stacks has been studied by means of capacitance-voltage (C-V) hysteresis and flat band voltage as function of both negative and positive stress fields. It was found that the de-trapping effect decreases at low-temperature, indicating that the de-trapping of trapped electrons from oxide traps may be performed via Al2O3/InGaAs interface defects. The dependence of the C-V hysteresis on the stress field at different temperatures in our InGaAs stacks can be explained in terms of the defect spatial distribution. An oxide defect distribution can be found very close to the metal gate/Al2O3 interface. On the other side, the Al2O3/InGaAs interface presents defects distributed from the interface into the bulk of the oxide, showing the influence of InGaAs on Al2O3 in terms of the spatial defect distribution. At the present, he is a research staff of the National Council of Science and Technology (CONICET), working in the National Commission of Atomic Energy (CNEA) in Buenos Aires, Argentina, well embedded within international research collaboration. Since 2008, he is Professor at the National Technological University (UTN) in Buenos Aires, Argentina. Dr. Palumbo has received research fellowships from: Marie Curie Fellowship within the 7th European Community Framework Programme, Abdus Salam International Centre for Theoretical Physics (ICTP) Italy, National Council of Science and Technology (CONICET) Argentina, and Consiglio Nazionale delle Ricerche (CNR) Italy. He is also a frequent scientific visitor of academic institutions as IMM-CNR-Italy, Minatec Grenoble-France, the Autonomous University of Barcelona-Spain, and the Israel Institute of Technology-Technion. He has authored and co-authored more than 50 papers in international conferences and journals.

  18. EDITORIAL: Publisher's Note

    Science.gov (United States)

    McGlashan, Yasmin

    2006-12-01

    In addition to offering an excellent service to authors, referees and readers of the journal, one of the goals of Plasma Physics and Controlled Fusion (PPCF) is to support the plasma community. We sponsor a number of prizes each year, usually focused on students' contributions to conferences. The poster prize winners from the 33rd EPS Conference on Plasma Physics can be found in Plasma Phys. Control. Fusion 48 B1-B506 along with the invited talks from the conference. Other prizes include: A poster prize at the CCLRC-organised High Power Laser Science Christmas meeting, held in Abingdon, UK, in December 2005. The winning poster was: `Implicit Vlasov Fokker Planck simulations including hydrodynamic ion motion' Christopher Ridgers (Imperial College London). The second prize went to C Cecchitti (Queens University of Belfast), and the third prize to John Howe (University of York). For the first time in 2006 PPCF also sponsored a prize for the best poster presented at the International Workshop on Frontiers of Plasma Physics, held from 21 August-1 September 2006 at the Abdus Salam ICTP, Trieste, Italy. The winner of this prize was Dr Bhaskar Chaudhury (Institute for Plasma Research, Bhat, India), for his work on `Plasma stealth technology: reduction of radar cross section of plasma shrouded objects'. Thank you to everyone who participated in these prizes, and congratulations to the winners and runners-up. I would also like to take this opportunity to thank the authors and referees of PPCF for all their hard work and support in making the journal a success in 2006 and to wish you all a successful 2007.

  19. Hydrological projections under climate change in the near future by RegCM4 in Southern Africa using a large-scale hydrological model

    Science.gov (United States)

    Li, Lu; Diallo, Ismaïla; Xu, Chong-Yu; Stordal, Frode

    2015-09-01

    This study aims to provide model estimates of changes in hydrological elements, such as EvapoTranspiration (ET) and runoff, in Southern Africa in the near future until 2029. The climate change scenarios are projected by a high-resolution Regional Climate Model (RCM), RegCM4, which is the latest version of this model developed by the Abdus Salam International Centre for Theoretical Physics (ICTP). The hydrological projections are performed by using a large-scale hydrological model (WASMOD-D), which has been tested and customized on this region prior to this study. The results reveal that (1) the projected temperature shows an increasing tendency over Southern Africa in the near future, especially eastward of 25°E, while the precipitation changes are varying between different months and sub-regions; (2) an increase in runoff (and ET) was found in eastern part of Southern Africa, i.e. Southern Mozambique and Malawi, while a decrease was estimated across the driest region in a wide area encompassing Kalahari Desert, Namibia, southwest of South Africa and Angola; (3) the strongest climate change signals are found over humid tropical areas, i.e. north of Angola and Malawi and south of Dem Rep of Congo; and (4) large spatial and temporal variability of climate change signals is found in the near future over Southern Africa. This study presents the main results of work-package 2 (WP2) of the 'Socioeconomic Consequences of Climate Change in Sub-equatorial Africa (SoCoCA)' project, which is funded by the Research Council of Norway.

  20. The Impact of Climate Change on Water Resource Availability in a Trans-Boundary Basin in West Africa: The Case of Sassandra

    Directory of Open Access Journals (Sweden)

    Naga Coulibaly

    2018-01-01

    Full Text Available In the context of climate change in West Africa characterized by a reduction of precipitation, this study was conducted to evaluate the impact of climate change on water resources from now to the end of the 21st century in the transboundary watershed of the Sassandra River shared by Guinea and Côte d’Ivoire. Historical and future climate data of Representative Concentration Pathways (RCPs 4.5 and 8.5 were projected with the Abdus Salam International Centre for Theoretical Physics (ICTP Regional Climate Model (RegCM4. The hydrological modeling of the river basin was carried out with the conceptual hydrological model, GR2M, a monthly time steps model that allows for the assessment of the discharge of the Sassandra River for each climate scenario according to the time periods 2021–2040 (Horizon 2030, 2041–2060 (Horizon 2050, 2061–2080 (Horizon 2050, and 2061–2080 (Horizon 2090. The results show a reduction in annual discharge when compared to the baseline (1961–1980. For RCP 4.5, the observed values go from −1.2% in 2030 to −2.3% in 2070 and rise to −2.1% in 2090. Concerning RCP 8.5, we saw a variation from −4.2 to −7.9% in Horizons 2030 and 2090, respectively. With the general decrease in rainfall in West Africa, it is appropriate to assess the impact on water resources of the largest rivers (Niger, Gambia, and Senegal that irrigate the Sahelo–Saharian zone.

  1. Order αGsub(μ) corrections to the parity-violating electron-quark potential in the Weinberg-Salam theory: parity-violations in one-electron atoms

    International Nuclear Information System (INIS)

    Lynn, B.W.

    We have calculated the order αGsub(μ) corrections to the order Gsub(μ) parity-violating (PV) electron-quark potential Hsub(PV)sup(e-q) at q 2 =0 in the standard SU(2)sub(L) x U(1) theory using a renormalization scheme which has Msub(W), Msub(Z) and Msub(H) (Higgs' mass) as input parameters. We then use SU(3) relations to write an effective PV electron-nucleon potential Hsub(PV)sup(e-N) in terms of the dimensionless parameters Csub(1P), Csub(1N) (nuclear spin independent) Csub(2P), Csub(2N) (nuclear spin dependent) and Csub(3P), Csub(3N) (electron anomalous magnetic moment dependent). For ssub(theta) 2 identical to 1-Msub(W) 2 /Msub(Z) 2 approx.= .23 and small Higgs' mass Msub(H) or approx.1 TeV. Csub(3P), and Csub(3N) are first induced at one loop and are small. We show that Csub(2P) and Csub(2N) suffer from large uncertainties due to the strong interactions which make the theoretical interpretation of experiments designed to measure these quantities less clear than was previously thought. The other parameters are relatively free from strong interaction uncertainties. We review the diseases of the old 1934 four-fermion theory and give an overview of the renormalization of the Weinberg-Salam theory. We discuss the possibility of high-precision experiments in one-electron atoms to measure these radiative corrections and remind the reader of a previously proposed experiment in hydrogen or deuterium which will measure Csub(1P) or Csub(1P)+Csub(1N) respectively. (author)

  2. Lactobacillus plantarum strains isolated from naturally fermented sausages and their technological properties for application as starter cultures Lactobacillus plantarum isolados de salames artesanais naturalmente fermentados e suas propriedades tecnológicas como culturas iniciadoras

    Directory of Open Access Journals (Sweden)

    Maristela Cortez Sawitzki

    2009-06-01

    Full Text Available In the present study, technological properties of L. plantarum strains isolated from naturally fermented sausages manufactured in the South region of Brazil were investigated in order to obtain a starter culture. The technological properties evaluated were the following: ability to growth at different pH values, at different temperatures, in different salt concentrations and in the presence of commercial curing salt, fast production of acid, determination of D - and L - lactic acid; nitrate reductase activity; antagonistic activity and stability of the isolated cultures after fermentation, concentration, and freeze-drying process. The isolated strains showed effectiveness to improve technological properties as starter cultures.No presente estudo foram investigadas as propriedades tecnológicas de culturas de L. plantarum, isoladas de salames artesanais, naturalmente fermentados, manufaturados na região Sul do Brasil, a fim de obter um cultivo iniciador. As propriedades tecnológicas investigadas foram as seguintes: habilidade das culturas para crescer em diferentes valores de pH, em diferentes concentrações de sal e na presença de sal de cura comercial; rápida produção de ácido, produção do isômero D - ou L - ácido láctico, atividade nitrato redutase, atividade antagonística e estabilidade das culturas após processo de fermentação, concentração e liofilização. Todas as culturas apresentaram eficiência quanto às propriedades tecnológicas investigadas.

  3. Atividade proteolítica e lipolítica de bactérias lácticas isoladas de salames artesanais / Proteolytic and lipolytic activity of lactic acid bacteria isolated from artisanal sausages

    Directory of Open Access Journals (Sweden)

    Danielle Carpiné

    2010-04-01

    Full Text Available Algumas cepas de bactérias lácticas de produtos cárneos fermentados sintetizam proteases e lipases. Estas enzimas contribuem para a formação do aroma e promovem alterações desejáveis na textura e flavour do produto. O objetivo desta pesquisa foi verificar a atividade proteolítica e lipolítica de 46 cepas de bactérias lácticas isoladas de salames obtidos por fermentação espontânea. A atividade proteolítica foi testada em dois meios contendo caseína e extrato de carne. Para os ensaios de verificação de lipólise também foram utilizados dois meios diferenciais usando o Ágar Base Tributirina, um com adição de Tributirina e o segundo meio com adição de banha de porco. A atividade enzimática foi mensurada pela formação de halos ao redor de colônias isoladas. Das cepas avaliadas mais de 80% apresentaram atividade proteolítica, enquanto que nenhuma das cepas apresentou atividade lipolítica. AbstractSome strains of lactic acid bacteria in meat products have the ability to synthesize proteases and lipases, enzymes which contribute for the development of the flavor and promote desirable texture alterations of the product. The objective of this research was to verify the lipolytic and proteolytic activity of 46 lactic acid bacteria strains, isolated from fermented sausages obtained from spontaneous fermentation. The proteolytic activity was tested in different medium supplemented with casein and meat extract. For the lipolytic assays Tributyrin Agar Base supplemented with tributyrin and pork fats were both used. The enzymatic activity was measured by zone formation around the isolated colonies. Among the evaluated strains more than 80% demonstrated proteolytic activity; however none of the strains presented lipolytic activity.

  4. Is quantum theory compatible with special relativity?

    Indian Academy of Sciences (India)

    Condense Matter and Statistical Physics, The Abdul Salam ICTP, Trieste, Italy; Research Group on Foundations of Quantum Theory and Information, Department of Chemistry, Sharif University of Technology, P.O. Box 11365-9516, Tehran, Iran; Perimeter Institute for Theoretical Physics, Waterloo, Canada; Department of ...

  5. James Clerk Maxwell 1831-1879

    International Nuclear Information System (INIS)

    Anon.

    1979-01-01

    Earlier this year saw the centenary of the birth of Albert Einstein. It is highly apt that 1979, which has been marked by further consolidation of the unified theory of weak and electromagnetic interactions and its recognition in the award of the Nobel Prize to Glashow, Salam and Weinberg, is also the centenary of the death of the great Scottish physicist who first formulated a unified theory of electric and magnetic fields. We are grateful to Abdus Salam for drawing our attention to the Maxwell anniversary

  6. Invited presentations. College on soil physics 2003

    International Nuclear Information System (INIS)

    Gabriels, D.M.; Ghirardi, G.; Nielsen, D.R.; Pla Sentis, I.; Skidmore, E.L.

    2004-01-01

    The present book is a partial compilation of contributions from selected former participants of the College on Soil Physics invited to make presentations related to their achievements as a result of attending the College. It also serves as a testimony of the existing links between soil physicists throughout the world strengthened by the support and programs of the International Centre for Theoretical Physics originally envisioned by Abdus Salam to foster the growth of advanced studies and physics research in developing countries

  7. Measurement of the transverse momentum differential cross-section for Z boson decays to muon anti-muon events in proton anti-proton collisions at center-of-mass energy = 1.8-TeV

    Energy Technology Data Exchange (ETDEWEB)

    Krasberg, Mark T. [Univ. of Michigan, Ann Arbor, MI (United States)

    2003-01-01

    In 1961 Sheldon Lee Glashow, while working on electroweak unification gauge theory, developed a model in which he introduced a massive neutral intermediate vector boson, call Z [1], [2], [3]. By 1967 Steven Weinberg and Abdus Salam had independently solved the theoretical problems with this model and developed their own self-consistent theory. In this thesis the Z gauge boson production rate at CDF as a function of the Z transverse momentum is studied in the dimuon channel.

  8. Forty years of the first attempt at the electroweak unification and of the prediction of the weak neutral boson Z0

    International Nuclear Information System (INIS)

    Leite Lopes, J.

    1998-03-01

    The author describes his first in 1958 at the unification of electromagnetic and weak interactions and his prediction in the same paper of the neutral Z 0 boson which would be the intermediate quantum exchanged in an eventual electron-neutron weak interaction (as muonic neutrinos were not known at that time). In annex he transcribes copies of letters from Steven Weinberg, Abdus Salam and Bruno Pontecorvo and comments by C.N. Yang and J. Tiomno. (author)

  9. World science

    International Nuclear Information System (INIS)

    Anon.

    1989-01-01

    The aim of the Third World Network of Scientific Organizations (TWNSO), established last year with its headquarters in Trieste, Italy, is to promote the role of science and technology in developing countries. TWNSO, under the presidency of Abdus Salam, is an offshoot of the Third World Academy of Sciences, which has pushed the cause of international scientific collaboration since its establishment in 1983. (orig./HSI).

  10. IMPA-ICTP School on Moduli of Curves

    CERN Document Server

    Ciliberto, Ciro; Esteves, Eduardo; Melo, Margarida; Voisin, Claire

    2017-01-01

    Providing a timely description of the present state of the art of moduli spaces of curves and their geometry, this volume is written in a way which will make it extremely useful both for young people who want to approach this important field, and also for established researchers, who will find references, problems, original expositions, new viewpoints, etc. The book collects the lecture notes of a number of leading algebraic geometers and in particular specialists in the field of moduli spaces of curves and their geometry. This is an important subject in algebraic geometry and complex analysis which has seen spectacular developments in recent decades, with important applications to other parts of mathematics such as birational geometry and enumerative geometry, and to other sciences, including physics.  The themes treated are classical but with a constant look to modern developments (see Cascini, Debarre, Farkas, and Sernesi's contributions), and include very new material, such as Bridgeland stability (see M...

  11. IAEA/ICTP/WNU workshop on managing nuclear knowledge. Presentations

    International Nuclear Information System (INIS)

    2005-01-01

    The purpose of the workshop was to continue efforts to raise awareness of the nuclear knowledge management challenge, to share best practices, and provide a forum for the exchange of information among participating nuclear professionals. The need to manage (preserve and transfer) knowledge has been widely recognized in the international community. The need is compounded by aging work force issues in many industries and is not limited to areas of nuclear technology. The workshop was attended by 41 participants from 24 counties and three international organizations. Presentations by several of the participants covered a broad range of nuclear knowledge management issues, including the role of technology, preserving expert knowledge, and preparing the new generation of nuclear worker. The meeting covered methodological and design practices for NKM including the information technology impact on NKM implementation, presented the lessons learned and accumulated national experiences and good practices from NKM programs in academia, industry, the governmental sector and technical support organizations. The style of the meeting was series of leading presentations followed by working sessions discussing the issues raised and difficulties envisaged. All participants were actively involved in discussions, panel reviews and workshop activities. During the technical sessions participants presented case studies and examples from their national activities/projects. The following issues have been addressed during the Workshop as the issues forming the framework for activities in nuclear knowledge management: Policies and Strategies in Nuclear Science and Technology; Managing Nuclear Information Resources; Human Resources and Knowledge Transfer for the Nuclear Sector; Managing and Preserving Knowledge in Nuclear Sector; Networking for Education, Training and Knowledge Transfer. The issues outlined in the workshop program including strategies, approaches and current activities on the subject were discussed and the participants presented their views, experience and the current difficulties being faced in the areas of Nuclear Knowledge Management during panel discussions and breakout sessions

  12. People and things. CERN Courier, Sep 1995, v. 35(6)

    International Nuclear Information System (INIS)

    Anon.

    1995-01-01

    The article reports on achievements of various people, staff changes and position opportunities within the CERN organization and contains news updates on upcoming or past events: At its meeting on 23 June, CERN's governing body, the Council, decided to create an LHC Division as from 1 January 1996. The LHC Division will focus on the core activities related to the construction of the machine, namely superconducting magnets, cryogenics and vacuum together with supporting activities. Jean-Pierre Gourber was appointed Leader of the new LHC Division for three years from 1 January 1996. Council also appointed Bo Angerth as Leader of Personnel Division for three years from 1 January 1996, succeeding Willem Middelkoop. Jiri Niederle (Czech Republic) was elected Vice-President of Council for one year from 1 July 1995. ICTP Trieste Director: Distinguished theorist Miguel Virasoro becomes Director of the International Centre for Theoretical Physics (ICTP), Trieste, succeeding founding Director Abdus Salam, who continues to act as the Centre's President. Born in Buenos Aires, Virasoro has worked in many countries during his career, and comes to ICTP from La Sapienza, Rome, where he has worked since 1982. He was in CERN's Theory Division from 1979- 80, returning after a short summer break to stay until 1983. In elementary particles, he is acknowledged as one of the founders of string theory. He has also studied complex systems, statistical mechanics and neural networks. EPS Prizes: The prestigious High Energy and Particle Physics Prize of the European Physical Society for 1995 goes to Paul Söding, Bjorn Wiik and Gunter Wolf of DESY and Sau Lan Wu of Wisconsin for their milestone work in providing 'first evidence for three-jet events in electron-positron collisions at PETRA' (DESY's electron- positron collider). At DESY, Bjorn Wiik is now Chairman of the DESY Board of Directors, Paul Söding has special responsibility for the high energy physics

  13. Serological and genetic diversity amongst Salmonella strains isolated in a salami processing line Diversidade sorológica e genética de cepas de Salmonella sp. isoladas em uma linha de produção industrial de salame

    Directory of Open Access Journals (Sweden)

    Vinicius B. Ribeiro

    2007-03-01

    Full Text Available Salmonella is one of the most important agents of foodborne disease in Brazil and in other countries, with meat and meat products being identified as important vehicles of salmonelosis. A total of 54 Salmonella strains isolated from a commercial salami processing line were first serotyped and then their antibiotic resistance and macro restriction profiles were determined. 11.1% of the strains showed resistance to 3 or more antibiotics with profile AmpCStxTe being the most frequent. PFGE generated 9 and 12 profiles with enzymes XbaI and SpeI, respectively. It was observed that different serotypes of Salmonella could be found in the different steps of the processing line. The genetic profile of the strains had low relationship indicating the genetic diversity of the tested strains.Salmonella é um dos principais agentes de enfermidades transmitidas por alimentos (ETA no Brasil e em outros países, sendo os derivados cárneos frequentemente associados como veículos de surtos de salmonelose. Um total de 54 cepas de Salmonella sp., isoladas a partir de amostras de salame coletadas nas diferentes etapas de uma linha de produção industrial, foram sorotipadas e posteriormente caracterizadas quanto a sua sensibilidade a antimicrobianos e perfil PFGE. Entre as cepas avaliadas, 11,1% apresentaram resistência a três ou mais dos antimicrobianos, sendo o perfil AmpCStxTe mais freqüente. Foram obtidos 9 e 12 perfis PFGE, empregando-se as enzimas XbaI e SpeI, respectivamente. Os perfis de ambas as enzimas foram agrupados, obtendo-se 12 perfis PFGE combinados que puderam ser separados em dois grupos empregando-se a análise de UPGMA. A linha de produção industrial de salame avaliada apresentou etapas em que há contaminação por diferentes sorotipos de Salmonella sp. Os perfis genéticos encontrados indicam origens distintas para muitas cepas estudadas, uma vez que estes foram pouco relacionados entre si.

  14. PREFACE: 3rd International Symposium ''Optics and its Applications''

    Science.gov (United States)

    Calvo, M. L.; Dolganova, I. N.; Gevorgyan, N.; Guzman, A.; Papoyan, A.; Sarkisyan, H.; Yurchenko, S.

    2016-01-01

    SPIE under the Federation of Optics College and University Students (FOCUS) conference grant, as well as contributions from other organizations: the Abdus Salam International Center for Theoretical Physics (ICTP), the Optical Society (OSA), the Laboratory of Terahertz Technology of Bauman Moscow State Technical University (BMSTU), the RAU, the LT-Pyrkal, the King Abdullah University of Science and Technology (KAUST), IPR of NAS, and Ritea.

  15. List of Organizing Committees and Sponsors

    Science.gov (United States)

    2012-03-01

    Organizers DIRECTORS Maria L CalvoPresident of International Commission for Optics, Spain Aram V PapoyanDirector of Institute for Physical Research of NAS, Armenia HEADS OF PROJECT Tigran Dadalyan YSU, Armenia Artsrun MartirosyanIPR, Armenia COORDINATOR Narine GevorgyanIPR, Armenia / ICTP, Italy MANAGERS Paytsar MantashyanIPR, Armenia Karen VardanyanIPR, Armenia INTERNATIONAL ADVISORY COMMITTEE Marcis AuzinshLatvia Roland AvagyanArmenia Tapash ChakrabortyCanada Yuri ChilingaryanArmenia Eduard KazaryanArmenia Albert KirakosyanArmenia Radik KostanyanArmenia Avinash PandeyIndia Marat SoskinUkraine INTERNATIONAL PROGRAM COMMITTEE David Sarkisyan (Chair)Armenia Roman AlaverdyanArmenia Dan ApostolRomania Levon AslanyanArmenia Aranya BhattacherjeeIndia Gagik BuniatyanArmenia Vigen ChaltykyanArmenia Roldao Da RochaBrazil Miltcho DanailovItaly Vladimir GerdtRussia Samvel GevorgyanArmenia Gayane GrigoryanArmenia Rafik HakobyanArmenia Takayuki MiyaderaJapan Levon MouradianArmenia Atom MuradyanArmenia Simon RochesterUSA Hayk SarkisyanArmenia Aleksandr VardanyanArmenia LOCAL ORGANIZING COMMITTEE Narek AghekyanArmenia Anahit GogyanArmenia Melanya GrigoryanArmenia Armen HovhannisyanArmenia Lilit HovhannisyanArmenia Tatevik KhachatryanArmenia Astghik KuzanyanArmenia Satenik KuzanyanArmenia Vladimir LazarevRussia Lilit MantashyanArmenia Hripsime MkrtchyanArmenia Pavel MuzhikyanArmenia Wahi NarsisianArmenia Sahak OrdukhanyanArmenia Anna ReymersArmenia Narine TorosyanArmenia The Symposium was organized by YSU & NAS SPIE Armenian Student Chapter Institute for Physical Research (IPR) of National Academy of Sciences (NAS) Russian-Armenian (Slavonic) University (RAU) LT-PYRKAL cjsc Yerevan State University (YSU) Official Sponsors of the Symposium LT-PYRKAlRussian ArmenianSPIE LT-PYRKAL cjscRussian-Armenian UniversityYSU & NAS SPIE Student Chapter Further sponsors NFSATICTPSCSADevout Generation National Foundation of Science and Advanced TechnologiesThe Abdus Salam International Centre

  16. PREFACE: APCTP-ASEAN Workshop on Advanced Materials Science and Nanotechnology (AMSN08)

    Science.gov (United States)

    Van Hieu, Nguyen

    2009-09-01

    Dear friends To contribute to the enhancement of the international scientific cooperation of the ASEAN countries and in reply to the proposal of the Vietnam Academy of Science and Technology (VAST), the Asia-Pacific Center for Theoretical Physics (APCTP) and the Sub Committee on Materials Science and Technology (SCMST) of the ASEAN Committee of Science and Technology (ASEAN COST) agreed to organize this APCTP-ASEAN Workshop on Advanced Materials Science and Nanotechnology with the participation of the Ministry of Science and Technology of Vietnam, the Vietnam Academy of Science and Technology, Rencontres du Vietnam, the Vietnam Physical Society, the Vietnam National University in Ho Chi Minh City and the Vietnam National University in Hanoi. As well as the participants from 9 of the 10 ASEAN countries and many other countries/regions of APCTP (Australia, China, Chinese Taipei, Japan and Korea) we warmly welcome the guests from Europe, the United States, Canada and Israel. Without the financial support of the Asia-Pacific Center for Theoretical Physics APCTP, Abdus Salam International Center for Theoretical Physics ICTP, the Asian Office of Aerospace Research and Development AOARD, the US Office of Naval Research Global-Asia ONRG, the Ministry of Science and Technology of Vietnam MOST, the Vietnam Academy of Science and Technology VAST, the Vietnam National University in Ho Chi Minh City VNU HCMC and other Sponsors, we would have been unable to hold this Workshop. On behalf of the International and Local Organizing Committees I would like to express our deep gratitude to the Sponsors. We highly appreciate the support and advice of the members of the International Advisory Committee, the scientific contribution of the invited speakers and all participants. We acknowledge the warm reception of the Khanh Hoa province Administration and citizens, and the hard work of the VAST staff for the success of the Workshop. We cordially wish all participants lively scientific

  17. Caulimoviral sequences in Dahlia variabilis in Egypt | Abdel-Salam ...

    African Journals Online (AJOL)

    The presence of Dahlia mosaic virus D10 (DMV-D10) was confirmed for the first time in dahlia (Dahlia variabilis) in Egypt. DMV-D10 was recently described as a caulimovirus that exists as an endogenous pararetroviral sequence (EPRS). DMV-D10 was confirmed by amplification of the ORF1 (encoding for the movement ...

  18. Unifying weak and electromagnetic forces in Weinberg-Salam theory

    International Nuclear Information System (INIS)

    Savoy, C.A.

    1978-01-01

    In this introduction to the ideas related to the unified gauge theories of the weak and electromagnetic interactions, we begin with the motivations for its basic principles. Then, the formalism is briefly developed, in particular the so-called Higgs mechanism. The advantages and the consequences of the (non-abelian) gauge invariance are emphasized, together with the experimental tests of the theory [fr

  19. Forty years of the first attempt at the electroweak unification and of the prediction of the weak neutral boson Z{sub 0}

    Energy Technology Data Exchange (ETDEWEB)

    Leite Lopes, J. [Centro Brasileiro de Pesquisas Fisicas (CBPF), Rio de Janeiro, RJ (Brazil)

    1998-03-01

    The author describes his first in 1958 at the unification of electromagnetic and weak interactions and his prediction in the same paper of the neutral Z{sub 0} boson which would be the intermediate quantum exchanged in an eventual electron-neutron weak interaction (as muonic neutrinos were not known at that time). In annex he transcribes copies of letters from Steven Weinberg, Abdus Salam and Bruno Pontecorvo and comments by C.N. Yang and J. Tiomno. (author) 24 refs., 5 figs.

  20. Nuclear information and knowledge. News from the INIS and Nuclear Knowledge Management Section. No. 4, September 2007

    International Nuclear Information System (INIS)

    Dyck, E.

    2007-09-01

    (June 2007), which advocated initiating collaborative and innovative services in nuclear knowledge management and building a Nuclear Web. Networking in nuclear education and training is covered in short articles on the World Nuclear University Summer Institute 2007, held in the Republic of Korea (14 July-24 August 2007), the 2007 School of Nuclear Knowledge Management, jointly organized by the IAEA, the Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy and the Wold Nuclear University (WNU), and the Asian Network for Education in Nuclear Technology (ANENT), which is developing a web-based education and training system in the region. The 'News from INIS' (International Nuclear Information System) section of the newsletter highlights support for activities in IAEA Member States, in particular Egypt, Uzbekistan and Qatar. A partnership with the International Centre for Scientific and Technical Information (ICSTI), an INIS member, supported an International Seminar on Scientific and Technological Innovation, held in Vienna in May 2007. The newsletter reports about this meeting and a plan for future cooperation between the IAEA and ICSTI. Other INIS-related articles refer to updating the radioisotope terminology of the ETDE/INIS Joint Thesaurus, adding new descriptors and their associated terms, as well as a report on progress in the digital preservation of INIS non-conventional literature from microfiche to digital media. Microfiche collections of several IAEA Member States (Canada, China and India) were digitized and the Serbian knowledge preservation project on the RA type reactor was successfully completed. Internally, IAEA policy documents and technical reports kept at the IAEA Library have been or are being turned into digital format. For the first time, this newsletter specifically reports about news from INIS Members, including an INIS training seminar in Slovakia, which is part of Comenius University's bachelor programme in chemistry

  1. Preface: phys. stat. sol. (c) 1/7

    Science.gov (United States)

    Cheikhrouhou, Abdelwaheb

    2004-05-01

    Physics Laboratory, Sciences Faculty of Sfax (Tunisia) and the Co-Chairmen were Professor Sami Mahmood, Dean of Sciences at Yarmouk University (Jordan) and Professor Mohamed Akhavan from the Sharif University of Technology (Iran). The four-day conference consisted of several oral and poster sessions, followed by social programs in the evenings. The success of the event could be measured during the closing session on the last day, when several delegates emphasized the high-quality science that had been evident at the conference. A post conference three-day tour to the south of Tunisia (Matmata, Douz City: the gate of desert and the mountains oasis: Tamerza, Mides and Chebika) was also arranged. The conference was generously sponsored by: - The Tunisian Ministry of High Education, Scientific Research and Technology - The Tunisian Secretary of State for Scientific Research and Technology - The Tunisian National Office of Tourism - The Abdus Salam International Centre for Theoretical Physics (ICTP) - French Institute for Cooperation in Tunisia - Tunisian-Italian Scientific Partnership - British Gas - Tunisian Society for Electricity and Gas - Imex Olive Oil -Confiserie TRIKI Le Moulin The next MSM conference in 2005 will be held in Morocco.

  2. International Symposium on Optics and its Applications (OPTICS-2011)

    Science.gov (United States)

    Bhattacherjee, Aranya B.; Calvo, Maria L.; Kazaryan, Eduard M.; Papoyan, Aram V.; Sarkisyan, Hayk A.

    2012-03-01

    the direction of their further studies. We are confident that the publication of the Symposium proceedings in JPCS, a worldwide-known open access journal, will help to disseminate and promote current activities in optics, thus facilitating international cooperation and the integration of Armenian scientists into the worldwide optical community. We would like to thank the sponsors of the Symposium: National Foundation of Science and Advanced Technologies (NFSAT), The Abdus Salam International Centre for Theoretical Physics (ICTP), LT-PYRKAL, State Committee of Science of Armenia, Russian-Armenian (Slavonic) University, and Devout Generation Foundation. We also express our gratitude to the members of the Program Committee for their organization of the manuscript reviewing. Special thanks go to Narine Gevorgyan, Lilit Mantashyan and Paytsar Mantashyan for their invaluable assistance in the compilation of this issue. The Editors, Aranya B Bhattacherjee, University of Delhi, India Maria L Calvo, Universidad Complutense de Madrid, Spain Eduard M Kazaryan, Russian-Armenian (Slavonic) University, Armenia Aram V Papoyan, Institute for Physical Research of NAS, Armenia Hayk A Sarkisyan, Russian-Armenian (Slavonic) University, Armenia OPTICS group photograph Participants of OPTICS-2011 in front of Yerevan State University Group in Khor Virap Participants of OPTICS-2011 in Khor Virap The PDF also contains additional photographs from the Symposium.

  3. PREFACE: Statistical Physics of Complex Fluids

    Science.gov (United States)

    Golestanian, R.; Khajehpour, M. R. H.; Kolahchi, M. R.; Rouhani, S.

    2005-04-01

    meeting, covered some of the various areas in statistical physics currently active in Iran. About half of the participants came from countries other than Iran, with a relatively broad geographic distribution. The meeting benefited greatly from the excellent administrative assistance of the conference secretary Ms Ashraf Moosavi and the IASBS staff. We are grateful to Professor Yousef Sobouti, the Director of IASBS, and Professor Reza Mansouri, the Head of the Physical Society of Iran, for their support. We also thank the organizers of STATPHYS22, Professor Rahul Pandit and his colleagues, for their suggestions and support. The conference was supported by donations from the Center for International Research and Collaboration (ISMO) and the Institute for Research and Planning in Higher Education (IRPHE) of the Iranian Ministry of Science, Research and Technology, the Islamic Development Bank, the Abdus Salam International Centre for Theoretical Physics (ICTP), the Tehran Cluster Office of the United Nations Educational, Scientific and Cultural Organization (UNESCO), the Research and Development Directorate of the National Iranian Oil Company, the Physical Society of Iran, the Iranian Meteorological Organization, and the Zanjan City Water and Waste Water Company. Finally, we would like to express our gratitude to Institute of Physics Publishing, and in particular to Professor Alexei Kornyshev and Dr Richard Palmer for suggesting publishing the proceedings of the meeting and carrying through the editorial processes with the utmost efficiency. Participants

  4. ICTP Summer Course on Low-Dimensional Quantum Field Theories for Condensed Matter Physicists

    CERN Document Server

    Morandi, G; Lu, Y

    1995-01-01

    This volume contains a set of pedagogical reviews covering the most recent applications of low-dimensional quantum field theory in condensed matter physics, written by experts who have made major contributions to this rapidly developing field of research. The main purpose is to introduce active young researchers to new ideas and new techniques which are not covered by the standard textbooks.

  5. Opening Statement to ICTP/IAEA School of Nuclear Energy Management, 8 August 2011, Trieste, Italy

    International Nuclear Information System (INIS)

    Bychkov, A.

    2011-01-01

    Today is an exciting day for all of us. It is the start of an intensive three-week course that covers a wide range of important topics in the nuclear energy sector. You - the new generation of nuclear energy leaders - will have the unique opportunity here to learn and benefit from the specific knowledge of the Agency and its senior experts in nuclear energy, nuclear safety, nuclear security and nuclear safeguards. You will be able to gain a broad international perspective on many issues related to the peaceful uses of nuclear technology. And you will be required to take an exam at the end. This will help you - and us - to confirm that you will have understood the lectures and group work, and that it will be sustainable knowledge. Getting to know and working with peers from around the world - and maybe making friends for a life time - is an extra bonus. Many countries are concerned that they will not have enough skilled professionals in the nuclear field in the coming decades. When you return to your countries after these three weeks, you will be better prepared to contribute to building and managing nuclear power programmes responsibly, safely and sustainably. Nuclear energy has played an important role during all my life. I call myself a 'nuclear man'. For the past 30 years, I spent my professional career at the Research Institute of Atomic Reactors - or RIAR - in Dimitrovgrad, where I started as a young engineer and researcher. When the former Soviet Union collapsed twenty years ago, many scientific institutes were faced with a long period of crisis. At that time, my scientific boss, Professor Skiba, and the Director of our Institute, Professor Ivanov, asked me to head my Laboratory. This was a great challenge. We and some other groups worked in the field of new pyro- electrochemical technologies for fast reactor fuel recycling. We wanted to preserve existing knowledge and develop new one. I encouraged my team to look into the future. It was an opportunity to turn a crisis into a challenge for which solutions could be found. We started to cooperate on an international level. My team played a key role in experimental research and development of the new technology and established its place in the international community. Today, pyrochemical approaches for fast reactor fuel recycling are one of the promising innovative technologies. Before I joined the Agency last February, I was Director General of the Institute for the past five years. It was a difficult and challenging time. Sometimes we were not able to pay salaries on time. But we worked very hard, and we managed to restore the stability of the work, enhance productivity and increase safety. In the end, we have been able to prove to the government that the Institute is the best place for some new, innovative technology projects in Russia. Why do I underline these episodes? I want to emphasize that my own development as a nuclear manager continues all the time. The nuclear field is very high-tech and not without potential danger. It is my firm opinion that the nuclear manager of the 21st century must be three things: first, a good specialist in one of the nuclear areas (such as fuel cycle, reactor technology, reactor physics or others); second, he or she must have broad knowledge of all nuclear branches, and; third, a basic understanding of economics, social science and psychology is required. If you constantly continue your professional development and add to your pool of knowledge, you will understand my slogan: ''There are no problems, only engineering and scientific challenges that are awaiting our decisions.'' These challenges are also faced by the IAEA Department of Nuclear Energy which I lead. The Department has principal responsibility for all aspects of Nuclear Power, Fuel Cycle and Waste Technology. Our work can be described in three brief words: support - catalyze - build. We support existing, expanding and new nuclear power programmes around the world. We catalyze innovation, through services and advice to Member States in developing advanced nuclear technology and fuel cycles for the long term, for example through INPRO, the International Project on Innovative Nuclear Reactors and Fuel Cycles; and We build national capacity in energy analysis and planning, and in nuclear knowledge management. The Nuclear Energy Department has a very important role to play in supporting countries who wish to establish national nuclear programmes. The Agency can help newcomer countries build a national nuclear infrastructure, and we have methodologies to support Member States in developing their energy policies as a whole. A key task is to encourage the distribution of best practices, such as in radioactive waste management, and to ensure safety while encouraging the sharing of technologies. Today, the nuclear industry is faced with new challenges. The accident at the Fukushima Daiichi nuclear power plant was caused by an unprecedented natural disaster. As the Director General of the IAEA, Mr Amano, pointed out, many lessons are being learned internationally. The Agency will continue to support Member States in all aspects of the peaceful uses nuclear energy, including strengthening the safety of nuclear power plants. It is my firm belief that nuclear energy - when managed safely and responsibly - has a major role to play in meeting the world's energy needs sustainably. In closing, I wish you all a stimulating and productive time here in Trieste

  6. The ICTP Regional System Model (RESM) to simulate the monsoon in the South Asia CORDEX domain

    Science.gov (United States)

    Di Sante, Fabio; Coppola, Erika; Farneti, Riccardo; Giorgi, Filippo

    2016-04-01

    South Asian climate is characterized mainly by the wet and dry dipole that divides the annual cycle in two seasons: the monsoon season and the dry season. The life and the economy of those regions is very much influenced by the climate variability and the monsoon variability therefore is crucial to understand the physical mechanism associated with them. The spatial and temporal representation of the monsoons over the South Asian region is one of the main challenge of global and regional climate models principally because they fail to represent the SST (sea surface temperature) induced rainfall when forced with observed SST resulting in a poor representation of the monsoon cycle (Fu et al. 2002). The coupling with the ocean is essential to be able to simulate the correct air-sea interaction; the results are in general much improved and the monsoon patterns and the time representation (like the onset for example) are closer to the observations (Fu et al. 2002; Fu et al. 2007; Ratnam et Al. 2008; Seo et Al. 2009). Here we present a Regional Earth System Model (RESM) composed by a regional climate model RegCM4 (Giorgi et al, 2012) coupled with the regional oceanic model MITgcm (Marshall et al, 1997) and two hydrological model: ChyM (Cetemps Hydrological Model, Coppola et al, 2007) and HD model (Max-Planck's HD model; Hagemann and Dümenil, 1998). We simulate the Southern Asian Climate taking into account the whole hydrological cycle. Wind stress, water fluxes and heat fluxes are exchanged from the atmosphere to the ocean, SST are exchanged from ocean to the atmosphere and in order to conserve mass, the river discharge is calculated from the Hydrological model and sent to the ocean. The main goal of this work is to evaluate the impacts of local air-sea interaction in the simulation of the interannual variability, over the Indian CORDEX (Giorgi et al, 2009) domain through regionally ocean-atmosphere-river coupled and uncoupled simulations, with a focus on monsoon season. The impact of a simplified low-resolution hydrological model (HD model) and the physical based high-resolution hydrological model (CHyM model) is also assessed in the fully coupled RESM simulations. References: 1) Fu, X., Wang, B. and Li, T., 2002: Impacts of air-sea coupling on the simulation of mean Asian summer monsoon in the ECHAM4 model, Mon. Wea. Rev., 130, 2889-2904. 2) Fu, X., Wang, B., Waliser, D. E. and Tao, L., 2007: Impact of atmosphere-ocean coupling on the predictability of monsoon interseasonal oscillations, J. Atmos. Sci., 64,157-174. 3) Ratnam J. Venkata, Filippo Giorgi, Akshara Kaginalkar, Stefano Cozzini, 2008b: Simulation of Indian Monsoon using RegCM3 - ROMS regional coupled model, Climate Dynamics, 1432-0894. 4) Seo, H, Xie SP, Murtgudde R, Jochum M, Miller AJ. 2009. Seasonal effects of Indian Ocean freshwater forcing in a regional coupled model. Journal of Climate. 22:6577-6596. 5) Giorgi, F., et al. 2012: RegCM4: Model description and preliminary tests over multiple CORDEX domains, Clim. Res., 53(1), 7-29. 6) Marshall, J., C. Hill, L. Perelman, and A. Adcroft, 1997: Hydrostatic, quasi-hydrostatic, and nonhydrostatic ocean modeling. J. Geophysical Res., 102(C3), 5733-5752. 7) Hagemann, S., Dumenil, L., 1998: Application of a grid-scale lateral discharge model in the BALTEX region. MPI-Report No. 278 8) Coppola, E., Tomasetti, B., Mariotti, L., Verdecchia, M., Visconti, G., 2007: Cellular automata algorithms for drainage network extraction and rainfall data assimilation. Hydrol Sci J 2007;52(3). 9) Giorgi F., Jones C. Asrar G., 2009: Addressing climate information needs at the regional level: the CORDEX framework. WMO Bull 58:175-183

  7. Spacetime edge geometry

    International Nuclear Information System (INIS)

    Dodson, C.T.J.

    1977-01-01

    This monograph is intended to be a mathematically rigorous account of the current position on the bundle-completion of spacetimes in general relativity; some new material is included. It arises from work done at the International Center for Theoretical Physics, and lectures given there at the invitation of professor Abdus Salam during 1976-1977. The text is reasonably self-contained in that the material on Lie groups and fibre bundles likely to be unfamiliar to some of the intended readership is reviewed with many examples in a preliminary chapter. An elementary knowledge of differentiable manifolds and maps among them is assumed. The subject matter is geometrical singularities and the approach here is intended to promote geometrical intuition without sacrificing rigour

  8. Innovative assesment of the seismic hazard from Vrancea sources

    International Nuclear Information System (INIS)

    Panza, Giuliano Francesco

    2002-01-01

    In the framework of a very fruitful, stimulating and still ongoing collaboration between the National Institute for Earth Physics - Bucharest, the Department of Earth Sciences - University of Trieste and The Abdus Salam International Center for Theoretical Physics - SAND Group, several innovative steps forwards have been made in the assessment of the seismic hazard generated by Vrancea seismicity. The limits of currently applied probabilistic approaches are partly overcome by the introduction of hazard scenarios based on the deterministic, realistic modeling of ground motion. The ongoing co-operation represents a fundamental contribution to the reliable assessment of seismic hazard, and has been recently enriched by the participation of Bulgarian scientists, who are facing, in the urban settlements close to the Romanian border, a seismic hazard similar to the one in Bucharest. (author)

  9. Gargamelle and the neutral currents

    International Nuclear Information System (INIS)

    Rousset, A.

    1996-06-01

    In order to simplify the description of forces, the physicists want to reduce the number of four interactions to a smaller one. They want to unify them. Einstein tried to unify the electromagnetic interaction and the gravitation interaction but it was probably the most difficult to unify. during the sixties, the American physicists Sheldon Glashow and Steven Weinberg and the Pakistani Abdus Salam ( each rewarded by the Nobel price of 1979) propose to unify the weak and electromagnetic interactions interactions under the form of an only interaction, the electro-weak interaction. To check the validity of this theory exist the demonstration by the weak neutral currents. In 1973, European physicians which analyzed photos taken in the bubble chamber called Gargamelle brought the experimental proof. This book tells the story of this discovery. (N.C.)

  10. Careers and people

    Science.gov (United States)

    2009-10-01

    Simulation experts win Dirac Medal Condensed-matter theorists Roberto Car of Princeton University in the US and Michele Parrinello of the Swiss Federal Institute of Technology (ETH Zurich) have won the 2009 Dirac Medal for their work on numerical-simulation techniques. The pair began developing new methods of modelling molecular dynamics in the mid-1980s, using elements of density functional theory and Newtonian molecular dynamics to calculate the mechanical motion of atoms and molecules in real time. Now known as the Car-Parrinello method, their technique has become a standard tool in computational physics and chemistry. The award, which is announced each year on 8August, Dirac's birthday, carries a cash prize of 5000 and is sponsored by the Abdus Salam International Centre for Theoretical Physics in Trieste, Italy.

  11. Stockholm revisited

    International Nuclear Information System (INIS)

    Anon.

    1985-01-01

    The Nobel Physics Prize for 1984 was shared by Carlo Rubbia and Simon van der Meer of CERN for their decisive contributions to the project which led to the discovery of the W and Z field particles which carry the weak interaction. Five years before, Sheldon Glashow, Abdus Salam and Steven Weinberg had made the same trip to receive the prize for their crucial roles in piecing together the elegant 'electroweak' gauge theory which unified weak interactions with the electromagnetic force and predicted just where the W and Z particles could be found. In December, the three theorists returned to Stockholm to participate with the 1984 laureates in a specially arranged panel discussion for Stockholm students

  12. Tutorial review of seismic surface waves' phenomenology

    Science.gov (United States)

    Levshin, A. L.; Barmin, M. P.; Ritzwoller, M. H.

    2018-03-01

    In recent years, surface wave seismology has become one of the leading directions in seismological investigations of the Earth's structure and seismic sources. Various applications cover a wide spectrum of goals, dealing with differences in sources of seismic excitation, penetration depths, frequency ranges, and interpretation techniques. Observed seismic data demonstrates the great variability of phenomenology which can produce difficulties in interpretation for beginners. This tutorial review is based on the many years' experience of authors in processing and interpretation of seismic surface wave observations and the lectures of one of the authors (ALL) at Workshops on Seismic Wave Excitation, Propagation and Interpretation held at the Abdus Salam International Center for Theoretical Physics (Trieste, Italy) in 1990-2012. We present some typical examples of wave patterns which could be encountered in different applications and which can serve as a guide to analysis of observed seismograms.

  13. k0IAEA software validation at CDTN/CNEN, Brazil, using certified reference materials

    International Nuclear Information System (INIS)

    Menezes, M.A.B.C.; Jacimovic, R.

    2007-01-01

    The IAEA distributed the k 0I AEA software package program to several laboratories. The Laboratory for Neutron Activation Analysis, at CDTN/CNEN (Centro de Desenvolvimento da Tecnologia Nuclear/Comissao Nacional de Energia Nuclear), Belo Horizonte, Brazil, acquired the k 0I AEA software package during the Workshop on Nuclear Data for Activation Analysis, 2005, held at the Abdus Salam International Centre for Theoretical Physics, Trieste, Italy. This paper is about the validation procedure carried out at the local laboratory aiming at the validation of the k 0I AEA software package. After the software was set up according to the guidelines, the procedure followed at CDTN/CNEN to validate the k 0I AEA software was to analyse several reference materials. The overall results pointed out that the k 0I AEA software is working properly. (author)

  14. Scalar boson emission by electrons in the Weinberg-Salam theory under a constant electromagnetic field

    International Nuclear Information System (INIS)

    Rodionov, V.N.; Studenikin, A.I.

    1985-01-01

    Consideration of processes with the assistance of virtual and real Higgs scalar neutral σ-bosons in the presence of a constant external crossed electromagnetic field is conducted. In the second order of the perturbation theory in the Weinberg-Jalam model corresponding contribution into mass lepton operator in this base probability dependence of σ-boson emission and radiation field σ-bosn effects on the crossed field parameter is investigated: x=√(eFsub(μν)psup(ν)sup(2)/msup(3)

  15. Tinjauan Hukum Islam Terhadap Penerapan Akad As-Salam dalam Transaksi E-Commerce

    Directory of Open Access Journals (Sweden)

    Ashabul Fadhli

    2016-06-01

    Full Text Available The rapid development of technology have been showing new dimension for transaction activity. The early of transaction activity with traditional method. Now day, it can be done by networking fast, is so called with internet (e-commerce. In the practice, e-commerce transaction involving some parties which niet found in the traditional method. As well as on the shape, process up to end of transaction. As an approval that emerged from agreement, akad have legal consequence that given the right and the other side requires the obligation to the parties that form a binding contract to one anether. Therefore, akad was essential to the acceptance or rejection of legal act.

  16. The one-loop effects in the electroweak Glashow-Weinberg-Salam theory

    International Nuclear Information System (INIS)

    Christova Christova, P.

    1987-01-01

    In the near future the experiment will reach a great precision and will be able to test the standard electroweak theory. It is important now to put in order calculations of radiative corrections in this theory and to make correct and exact present theoretical predictions for the measured quantities. The survey of some results of group working in the JINR, Dubna, may serve this aim. We discuss here on-mass-shell renormalization scheme in the unitary gauge; the one-loop amplitudes of both charge and neutral currents-induced fermion scatterings; the large constant effects; the dynamical behaviour of the one-loop neutral-current corrections; the calculation of the W-and Z-boson masses; the difference between the various Weinberg parameters sin 2 Θ W . 44 refs., 10 figs., 1 tab. (author)

  17. KERUKUNAN INTERN UMAT BERAGAMA DI KOTA GERBANG SALAM (Melacak Peran Forum Komunikasi ORMAS Islam [FOKUS] Pamekasan

    Directory of Open Access Journals (Sweden)

    Nor Hasan

    2015-12-01

    Full Text Available Creating the harmony life in both intern and extern the members of religious community in pluralism is not an easy way. It needs process, as well as social, education, economic, politic especially ideology from each different member of religious. Therefore, it needs serious attention and skill from all sectors: government, public figure and society both individual and group. Forum Komunikasi ORMAS Islam (FOKUS Pamekasan as the coordinator of silat al-rahim of some ORMAS in Pamekasan commits to realize the harmony life among members of society. Through social activity done, FOKUS has given contribution in realizing the harmony life among members of religious.Copyright (c by NUANSADOI: 10.19105/nuansa.v12i2.776

  18. Smoking among in-school adolescents in Dar Es Salam, Tanzania ...

    African Journals Online (AJOL)

    Using data from the 2003 Dar es Salaam (Tanzania) Global Youth Tobacco Survey (GYTS), we assessed factors associated with current cigarette smoking among adolescents. We estimated frequencies and conducted logistic regression analysis to identify predictors of current cigarette smoking. Of the 1947 students ...

  19. The genesis of unified gauge theories

    International Nuclear Information System (INIS)

    Kibble, Tom

    1993-01-01

    The theoretical physics group at London's Imperial College in 1959 had three permanent faculty: Abdus Salam, his erstwhile thesis supervisor Paul Matthews, and John C.Taylor. I joined as a lecturer the following year. In those early days we had lots of visitors, both long- and short-term - Murray Gell-Mann, Ken Johnson, John Ward, Lowell Brown, Gordon Feldman and Steven Weinberg. About a year after I arrived we were transferred from the Mathematics to the Physics Department under the formidable Patrick (P.M.S.) Blackett. Having been brought up in the Cavendish Laboratory tradition under Lord Rutherford, Blackett was rather scornful of theoretical physicists, but he knew a good thing when he saw one and had persuaded Salam to join the rapidly expanding Physics Department. In 1960 field theory was widely regarded as very passé. It had had its triumphs: renormalization theory had made sense of divergences, and quantum electrodynamics had been magnificently vindicated. But field theory didn't seem to work for anything else, particularly not for the strong interactions, and was definitely out of fashion. There were, however, a few places in the world where field theory was still studied unashamedly. Imperial College was one. Harvard was certainly another; many of our visitors over the next few years were Julian Schwinger's students

  20. PREFACE: Turbulent Mixing and Beyond Turbulent Mixing and Beyond

    Science.gov (United States)

    Abarzhi, Snezhana I.; Gauthier, Serge; Rosner, Robert

    2008-10-01

    mixing dynamics are interplayed with fundamental properties of the Euler and compressible Navier-Stokes equations, with the problem sensitivity to the initial conditions and to the boundary conditions at the discontinuities, and with its stochastic description. The state-of-the-art numerical simulations of the multi-phase non-equilibrium dynamics suggest new methods for capturing discontinuities and singularities and shock-interface interaction, for predictive modeling of the multi-scale dynamics in fluids and plasmas, for error estimate and uncertainty quantification as well as for novel data assimilation techniques. The First International Conference `Turbulent Mixing and Beyond' (TMB-2007), was held on 18-26 August 2007 at the Abdus Salam International Centre for Theoretical Physics, Trieste, Italy. This was a highly informative and exciting meeting, by all the standards a major success. The Conference brought together 120 participants (307 authors) from five continents, ranging from students to members of National Academies of Sciences and Engineering and including researchers from the Universities, National Laboratories, Leading Scientific Institutions and Industry. TMB-2007 covered 16 different topics, maintaining the scope and the interdisciplinary character of the meeting, and kept the focus on a fundamental fluid dynamic problem of unsteady turbulent processes and the Conference Objectives. The success of the TMB-07 was a result of the successful work of all the participants, who were serious and professional people, caring for the quality of their research and sharing their scientific vision. The level of presentations was high, and the presentations included 87 oral contributions, 32 invited lectures and 5 tutorials and over 30 poster contributions. The round table discussions held at TMB-2007 investigated the organization of a Collaborative Computing Environment for the Turbulent Mixing and Beyond Community. The abstracts of the 150 accepted Conference

  1. Determination of trace elements in cigarette tobacco with the k0-based NAA method using Es-Salam research reactor

    International Nuclear Information System (INIS)

    Hamidatou, L.A.; Khaled, S.; Akhal, T.; Hamidatou, L.A.; Ramdhane, M.

    2009-01-01

    The k 0 -standardization method of NAA is known as one of the most remarkable progress of NAA with its many advantages. Recently, our laboratory is highly involved in various areas of application of k 0 -NAA. This paper focuses on the application of the k 0 -NAA method in Nutritional and Health-Related Environmental field. Tobacco holds a leading position among different commodities of human consumption. The adverse health effects of toxic and trace elements in tobacco smoke on smokers and non-smokers are a special concern. In the present study, the concentration of 24 trace elements in cigarette tobacco of five different brands of Algerian and American cigarettes have been determined by k 0 -based INAA method. The results were compared with those obtained for samples from Iranian, Turkish, Brazilian and Mexican cigarettes tobacco. To evaluate the accurate of the results the SRM IAEA-140/TM was executed. The analytical results showed that the relative error of most of the elements was less than 10%. (author)

  2. Cosmic solutions in the Einstein-Weinberg-Salam theory and the generation of large electric and magnetic fields

    Energy Technology Data Exchange (ETDEWEB)

    Hosotani, Yutaka; Emoto, Hiroki; Kubota, Takahiro

    2003-04-01

    In the SU(2){sub L} x U(1){sub Y} standard electroweak theory coupled with the Einstein gravity, new topological configurations naturally emerge, if the spatial section of the universe is globally a three-sphere (S{sup 3}) with a small radius. The SU(2){sub L} gauge fields wrap the space nontrivially, producing homogeneous but anisotropic space. As the universe expands, large electric and magnetic fields are produced. The electromagnetic field configuration is characterized by the Hopf map.

  3. Cooperation possibilities and priorities for research and education in Soil Physics

    International Nuclear Information System (INIS)

    Gabriels, D.; Ruiz, M E.

    2008-01-01

    Full text: Decision and agreements for cooperation in the field of Soil Physics, and between the Department of Management and Soil Care Ghent University (UGENT), Belgium; Agrophysics Research Group at the Agrarian University of Havana (UNAH) and the International Centre for Theoretical Physics 'Abdum Salam' in Trieste, Italy (ICTP) . This cooperation is manifested through various projects. UGent and UNAH are already cooperating through a project funded by the Inter-University Council of Flanders (VLIR), Belgium entitled 'Increased cognitive and techniques UNAH (Agrarian University of Havana) and CENHICA capabilities (Center hydrology and water Quality ) in view of a program of soil conservation and water Cuyaguateje River Basin area in Western Cuba'. The Department of Soil Management and Care of UGENT is associated with ICTP Centre and Professor Dr. Donald Gabriels (UGent ) is founder and co-director of the College of Soil Physics that had its beginnings in 1983 and is organized every two years in Trieste , Italy. He is also co - organizer of the ELAFIS (Latin American School of Soil Physics), which was organized by the UNAH in Havana, Cuba under the direction of Dr Maria Elena Ruiz as senior associate at ICTP. The Department of Management and Soil Care (UGENT) directs and coordinates the International Center Eremologia (ICE ) and Prof. Dr. Donald Gabriels was recently named as president of the UNESCO Chair in Eremologia . ICE organized and coordinated by the International Training Center UGENT and the Faculty of Applied, Free University of Brussels (UB) a Master's program in two years entitled 'Physical Land Resources' Science. The UNESCO Chair in Eremologia supports 'Desertification Research priorities' announced in the Declaration of Tunes in 2006. As desertification in arid and land degradation in general under different weather conditions provide for the deterioration of the physical and soil quality, cooperation between the three institutions: UGENT , UNAH

  4. PREFACE Turbulent Mixing and Beyond

    Science.gov (United States)

    Abarzhi, Snezhana I.; Gauthier, Serge; Niemela, Joseph J.

    2010-12-01

    acceleration. Their scaling, spectral and invariant properties differ substantially from those of classical Kolmogorov turbulence. At atomistic and meso-scales, the non-equilibrium dynamics depart dramatically from a standard scenario given by the Gibbs statistic ensemble average and quasi-static Boltzmann equation. The singular aspect and the similarity of the non-equilibrium dynamics at macroscopic scales are interplayed with the fundamental properties of the Euler and compressible Navier-Stokes equations and with the problem sensitivity to the boundary conditions at discontinuities. The state-of-the-art numerical simulations of multi-phase flows suggest new methods for predictive modeling of the multi-scale non-equilibrium dynamics in fluids and plasmas, up to peta-scale level, for error estimate and uncertainty quantification, as well as for novel data assimilation techniques. The Second International Conference and Advanced School 'Turbulent Mixing and Beyond', TMB-2009, was held on 27 July-7 August 2009 at the Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy. This was a highly informative and exciting meeting, and it strengthened and reaffirmed the success of TMB-2007. TMB-2009 brought together over 180 participants from five continents, ranging from students to members of National Academies of Sciences and Engineering and including researchers at experienced and early stages of their carriers from leading scientific institutions in academia, national laboratories, corporations and industry, from developed and developing countries. The success of TMB-2009 came from the successful work of all the participants, who were responsible professionals caring for the quality of their research and sharing their scientific vision. The level of presentations was high; about 170 presentations included over 60 invited lectures and 15 tutorials (4500 minutes of talks in total), about 40 posters and two Round Tables. TMB-2009 covered 17 different topics

  5. Early Warning and Forecasting system for extreme events and climate related drought using ICTP-Regional Climate Model (RegCM)

    Science.gov (United States)

    Zakey, Ashraf; Giorgi, Filippo

    2010-05-01

    Dynamical downscaling using a Regional Climate Models (RCMs) are one of the most promising tools for providing early warnings for natural hazards such as floods and droughts. Using two case studies, this paper documents the skill of a regional climate model in the seasonal forecasting of below and over normal rainfall in Nile Basin Region during the rainy seasons of 1993-94 and 2006-07 for the drought and flood years, respectively. Two different cloud schemes are applied to achieve a sensitivity study to predicate the rainfall over Nile Basin. This paper shows that the regional climate model, when being forced by reasonably good forecasts from a global model, can generate useful seasonal rainfall forecasts for the region, where it is dominated by the monsoon. The spatial details of the dry conditions obtained from the regional climate model forecast are also found to be comparable with the observed distribution.

  6. Logical obstacles in learning planetary motion

    Science.gov (United States)

    Dileep, V.; Sathe, D. V.

    Daniel Schaffer wrote now-a-days scientists and particularly theoretical physicists are not held in unquestioned esteem in his editorial This became the starting point of my presentation which was dedicated to the memory of Abdus Salam 1 Had he survived to witness the IYP he would have become surprised on knowing that Frank Wilczek had maximum trouble in learning classical mechanics 2 These facts require us to restudy learning O level physics from the logical point of view - in order to attract promising young students to take up challenges of physics and astronomy of the 21 st century Newton s laws of motion are known for more than 300 years and so there should not be any problems in learning and teaching these laws now in the 21 st century But findings of educators reported in the last 30 years show that there are some serious and global problems I have shown that there are some logical obstacles which make adverse effect on the comprehension of circular motion and related topics 3 In this presentation relevant aspects are discussed References begin enumerate item D V Sathe August 2001 Chemical Education International http www iupac org publications cei vol2 0201x0026 html item Frank Wilczek October 2004 Physics Today p 11 item D V Sathe December 2001 COSPAR Info Bulletin 152 p 53 end enumerate

  7. Thomas Kibble visits CERN

    CERN Multimedia

    Rosaria Marraffino

    2014-01-01

    Emeritus Professor Sir Thomas W.B. Kibble, from Imperial College London visited LHC for the first time last week and delivered a colloquium on the genesis of electroweak unification and the Brout-Englert-Higgs mechanism.   From left to right: Jim Virdee, Tiziano Camporesi, Tom Kibble and Austin Ball on the visit to CMS. On his way back from Trieste, where he received the Abdus Salam International Centre for Theoretical Physics' Dirac Medal, Tom Kibble stopped by CERN for his first visit to the LHC. Kibble had a standing invitation from Jim Virdee, former CMS spokesperson, who is also a researcher from Imperial College London. Peter Jenni (left) and Tom Kibble tour the ATLAS detector. (Image: Erwan Bertrand) Kibble made the trip to CERN a family outing and brought along 14 relatives,  including his children and grandchildren. He visited the ATLAS detector with Peter Jenni, its former spokesperson, on Friday 10 October. In the afternoon, Kibble delivered a colloquium in the...

  8. Aspects of Quantum Theory

    Science.gov (United States)

    Salam, Abdus; Wigner, E. P.

    2010-03-01

    Preface; List of contributors; Bibliography of P. A. M. Dirac; 1. Dirac in Cambridge R. J. Eden and J. C. Polkinghorne; 2. Travels with Dirac in the Rockies J. H. Van Vleck; 3. 'The golden age of theoretical physics': P. A. M. Dirac's scientific work from 1924 to 1933 Jagdish Mehra; 4. Foundation of quantum field theory Res Jost; 5. The early history of the theory of electron: 1897-1947 A. Pais; 6. The Dirac equation A. S. Wightman; 7. Fermi-Dirac statistics Rudolph Peierls; 8. Indefinite metric in state space W. Heisenberg; 9. On bras and kets J. M. Jauch; 10. The Poisson bracket C. Lanczos; 11. La 'fonction' et les noyaux L. Schwartz; 12. On the Dirac magnetic poles Edoardo Amadli and Nicola Cabibbo; 13. The fundamental constants and their time variation Freeman J. Dyson; 14. On the time-energy uncertainty relation Eugene P. Wigner; 15. The path-integral quantisation of gravity Abdus Salam and J. Strathdee; Index; Plates.

  9. Golden Jubilee photos: The Search for the Bosons

    CERN Multimedia

    2004-01-01

    From left to right: Carlo Rubbia; Simon van der Meer; Herwig Schopper, Director-General of CERN; Erwin Gabathuler, Research Director at CERN; and Pierre Darriulat, spokesman of the UA2 experiment. On 25 January 1983, this historic press conference announced the observation of W particles in the UA1 experiment at CERN, and was followed by another in May when Z particles had been found. Natural phenomena at this scale are described by four forces, gravity, electromagnetism and the strong and weak nuclear forces. But in 1968 a new theory predicted that electromagnetism and the weak nuclear force were manifestations of a single 'electroweak' interaction, proposing that it would be communicated by the charged W+ and W- bosons and the neutral Z0 boson. In 1979 Sheldon Glashow, Abdus Salam and Steven Weinberg won the Nobel Prize for Physics for this work. Finding the bosons predicted by the theory involved a huge effort. CERN had to develop new technology and engineering. Innovations included making crucial advances...

  10. Gordon Fraser (1943-2013)

    CERN Multimedia

    2013-01-01

    We were deeply saddened to learn that Gordon Fraser had passed away on 3 January. During his 25-year career at CERN, until his retirement in 2002, he made many valuable contributions to the Laboratory, in particular as editor of CERN Courier.   Gordon’s life in science began at Imperial College London, where he obtained a PhD with the theory group of the future Nobel laureate Abdus Salam. He then spent time at Tel Aviv University in Yuval Ne’eman’s group and at Brighton University, before changing career to become a journalist, at first for Computer Weekly in London. He moved into scientific editing at the Rutherford Appleton Laboratory in 1975 and it was from there that he was hired to join the publications team at CERN in 1977. By 1982 Gordon had become the editor of the CERN Courier. During his time at the helm, both particle physics and the Courier changed considerably. Under his careful stewardship aspects of publishing were outsourced, leading to a...

  11. Lectures on weak interactions: from Fermi-Majorana-Perrin to Glasgow-Weinberg-Salam and some contributions from Latin American physicists

    International Nuclear Information System (INIS)

    Lopes, J.L.

    1987-01-01

    Historical aspects on the development of the physics of weak interactions which, after about forty years, converged with quantum electrodynamics to give birth ot the first model of unification of interactions, the so-called electroweak standard model, are presented. (L.C.) [pt

  12. Elaboração de embutido fermentado tipo salame utilizando carne de ovelhas de descarte Elaboration of fermented sausage type salami using meat from culling ewe

    Directory of Open Access Journals (Sweden)

    Luis Fernando Vilani De Pelegrini

    2008-12-01

    Full Text Available O objetivo deste trabalho foi produzir embutido fermentado com carne de ovelhas de descarte de dois grupos genéticos em dois sistemas de alimentação. Foram utilizadas 10 ovelhas da raça Ideal e 10 da raça Texel, as quais foram aleatoriamente distribuídas de acordo com o grupo racial, em dois sistemas alimentares: confinamento e pastagem cultivada. Os animais foram abatidos quando atingiram um escore corporal médio de 3,5 pontos. Na produção dos embutidos utilizou-se 80% de carne ovina e 20% de carne suína. Foram realizadas as determinações de pH, atividade de água, quebra de peso e análise sensorial, utilizando uma escala hedônica de 7 pontos, avaliando os atributos de cor, odor, textura e sabor. Não foram encontradas diferenças entre grupos genéticos (p > 0,05 e sistema alimentar (p > 0,05. Os valores médios no painel sensorial, considerando os grupos genéticos, variaram de 4,90 a 5,41 para a coloração; 4,53 a 4,81 para o odor; 5,25 a 5,75 para o sabor e 5,40 a 5,69 para a textura, já para os métodos de alimentação variaram de 5,03 a 5,25; 4,56 a 4,78; 5,50 e 5,34 a 5,75 para a coloração, odor, sabor e textura, respectivamente. Pode-se concluir que os embutidos fermentados foram aprovados sensorialmente pelos provadores.The aim of this work was producing fermented sausage with meat of culling ewe of two genetic groups in two feeding systems. 10 ewes of the Ideal breed and 10 of the Texel breed were used in the experiment, which were randomly distributed in agreement with the breed group in two alimentary systems: confinement and cultivated pasture. The animals were slaughtered when they reached a medium corporal score of 3.5 points. For the production of the sausages, a proportion of 80% of ewe meat and 20% of pork meat were used. The pH, water activity, weight loss, and sensorial analysis, were determinated using a scale of 7 points evaluating the color, odor, texture, and flavor attributes of the fermented sausages. No differences were not found among the genetic groups (p > 0,05 and the alimentary system (p > 0,05. The average values in the sensorial panel varied from 4,90 to 5,41 for coloration; 4,53 to 4,81 for odor; 5,25 to 5,75 for flavor and from 5,40 to 5,69 for texture. For the feeding methods they varied from 5,03 to 5,25; 4,56 to 4,78; 5,50, and 5,34 to 5,75 for coloration, odor, flavor, and texture, respectively, considering the genetic groups. It can be concluded that the sausages fermented were sensory approved by the tasters.

  13. Protocols for In Vitro Mass Multiplication and Analysis of Medicinally Important Phenolics of a Salep Orchid, Satyrium nepalense D.Don ("Salam Mishri").

    Science.gov (United States)

    Babbar, Shashi B; Singh, Deepak K

    2016-01-01

    Satyrium nepalense is a rare and threatened medicinal orchid, populations of which in its native habitats are dwindling because of indiscriminate collections and habitat destruction, thus necessitating the development of methods for its in situ and ex situ conservation. Because of non-endospermous nature of the seeds and the immature embryos at seed dispersal stage, orchids cannot be seed-propagated as other plants. Micropropagation, using plant tissue culture techniques, offers an effective method for the multiplication of orchids. In this chapter, a five-step efficient reproducible protocol for large-scale in vitro multiplication of Satyrium nepalense is described. The first step involves asymbiotic germination of seeds isolated from immature green pods and cultured on Mitra's medium (M) gelled with 0.8 % agar and supplemented with 2 % sucrose and 1 % peptone (hereafter referred to as basal medium, BM). On this medium, seeds start germinating after a week of culture. Protocorms developed from the seeds are sub-cultured on BM fortified with 4 μM kinetin (Kn) after 8 weeks, for shoot differentiation and multiplication. The shoots developed on Kn-supplemented medium are transferred to BM alone for their elongation for the same period. The elongated shoots are transferred to the rooting medium, comprising BM supplemented with 0.5 or 1.0 μM indole-3-butyric acid, for further 8 weeks. The regenerated plantlets are transferred to a potting mix of sand and vermiculite (1:1) for acclimatization. The tubers and leaves excised from both in vitro-developed plants and those from their native habitats are analyzed and compared for the contents and concentration of medicinally important phenolics using high-performance liquid chromatography (HPLC), details of which are provided in this chapter.

  14. Evaluation of doctors' performance as facilitators in basic medical science lecture classes in a new Malaysian medical school

    Directory of Open Access Journals (Sweden)

    Ismail S

    2015-03-01

    Full Text Available Salwani Ismail,1 Abdus Salam,2 Ahmed G Alattraqchi,1 Lakshmi Annamalai,1 Annamalai Chockalingam,1 Wan Putri Elena,3 Nor Iza A Rahman,1 Abdullahi Rabiu Abubakar,1 Mainul Haque1 1Faculty of Medicine, Universiti Sultan Zainal Abidin, Kuala Terengganu, Terengganu, Malaysia; 2Department of Medical Education, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia; 3School of Health Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia Background: Didactic lecture is the oldest and most commonly used method of teaching. In addition, it is considered one of the most efficient ways to disseminate theories, ideas, and facts. Many critics feel that lectures are an obsolete method to use when students need to perform hands-on activities, which is an everyday need in the study of medicine. This study evaluates students' perceptions regarding lecture quality in a new medical school. Methods: This was a cross-sectional study conducted of the medical students of Universiti Sultan Zainal Abidin. The study population was 468 preclinical medical students from years 1 and 2 of academic year 2012–2013. Data were collected using a validated instrument. There were six different sections of questions using a 5-point Likert scale. The data were then compiled and analyzed, using SPSS version 20. Results: The response rate was 73%. Among 341 respondents, 30% were male and 70% were female. Eighty-five percent of respondents agree or strongly agree that the lectures had met the criteria with regard to organization of lecture materials. Similarly, 97% of students agree or strongly agree that lecturers maintained adequate voices and gestures. Conclusion: Medical students are quite satisfied with the lecture classes and the lectures. However, further research is required to identify student-centered teaching and learning methods to promote active learning. Keywords: lecture, effectiveness, evaluation, undergraduate medical

  15. Proceedings of a Meeting of an American Sub-Group of the Council of Edward A. /Bouchet-ICTP Institute Held in Atlanta, Georgia on 28-29 Mar 1992

    Science.gov (United States)

    1992-03-29

    Moreover, nuclear and coal-fired power plants could be built further away from high population areas. Magnetically levitated ( maglev ) trains may be the...Japanese bullet trains , going 120 miles/hour, must have their tracks realigned each night. The maglev trains would make this realignment unnecessary...has over 30 universities. The majority of people trained in Europe and the U.S.A. dur- ing the colonial days studied professions required to run and

  16. INTRODUCTION: David Sherrington as a mentor of young scientists

    Science.gov (United States)

    Goldbart, Paul M.

    2008-08-01

    , unforgettable to the recipient. I usually appreciate the honesty and clarity that this straightforwardness embodies. But not always. Some years ago, I had the good fortune to spend a month in Oxford, thanks to David, and my family came with me, my son Ollie being about six years old at the time. One evening, David and his wife Margaret joined us for dinner and, some time after the meal was over, Ollie—who was still young enough to still regard his Dad as something of a superhero—wandered over to David and struck up a conversation: `Tho, Profethor Therrington. Wath my Daddy a good thtudent?' he asked. I can still see the look of horror on David's face. Should I lie and let the child find out the truth later? Or should I tell him what I really think? Well, as you might expect, honesty—delivered gently—prevailed. David rubbed his forehead, scrunched up his nose as if about to take a dose of medicine, and did the very best he could: 'Well, lad, fairly good,' he said, 'your Dad was a fairly good student.' I'd like to conclude with a reflection that often comes to my mind when I think of David. Not long ago, I happened to be in Trieste at the Abdus Salam International Centre for Theoretical Physics, a favorite destination of mine. Not so much for the scenery—although when you're coming from the heart of East Central Illinois, the Trieste scenery is not to be sniffed at. But, rather, I love ICTP for its palpable spirit of international and inter-cultural cooperation. While I was in Trieste it so happened that there were three workshops going on at the same time. One was on information processing and the visual cortex; another was on algorithmic complexity and combinatorial optimization; and the third was on glassy states of matter. I cannot have been alone in having the truly staggering realization that all three workshops were, to put it bluntly, exploring equivalent phenomena encoded in a common mathematical structure, and that the corresponding systems of equations were

  17. 3rd International Conference on Turbulent Mixing and Beyond

    Science.gov (United States)

    Abarzhi, Snezhana I.; Gauthier, Serge; Keane, Christopher J.; Niemela, Joseph J.

    2013-07-01

    , technology and mathematics; (iii) TMB participants conduct highly innovative research and their interactions strengthen the community's might. Based on the success of the first and second conferences and on the recommendations of the conference round table discussions, and in response to the inquiry of the community, the Third International Conference on Turbulent Mixing and Beyond was organized. The Third International Conference on Turbulent Mixing and Beyond, TMB-2011, was held on 21-28 August 2011 at the Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy. This was a highly informative and exciting meeting, and it strengthened and reaffirmed the success of TMB-2009 and 2007. The objectives of the Third International Conference on Turbulent Mixing and Beyond were to: (i) focus the integration of theory, experiments, large-scale numerical simulations and state-of-the-art technologies on the exploration of physical mechanisms of non-equilibrium dynamics, from micro to macro-scales, in both high and low energy density regimes; (ii) foster the application of innovative approaches for tackling the fundamental aspects of turbulent mixing problems and for understanding and further extending the range of applicability of canonical considerations; (iii) encourage the development of new approaches and stimulate the application of advanced data analysis techniques for unified characterization of experimental and numerical data sets, for estimation of their quality and information capacity, and for transforming data to knowledge; (iv) further develop the 'Turbulent Mixing and Beyond' community via organizing a positive and constructive collaborative environment, maintaining the quality of information flux in the community and sharing research methodologies, tools and data among the community members. The objectives were accomplished at TMB-2011. 4. Programme of TMB-2011 TMB-2011 brought together 150 participants, ranging from students to members of

  18. Quantum Structure of Space and Time

    Science.gov (United States)

    Duff, M. J.; Isham, C. J.

    2012-07-01

    Foreword Abdus Salam; Preface; List of participants; Part I. Quantum Gravity, Fields and Topology: 1. Some remarks on gravity and quantum mechanics Roger Penrose; 2. An experimental test of quantum gravity Don N. Page and C. D. Geilker; 3. Quantum mechanical origin of the sandwich theorem in classical gravitation theory Claudio Teitelboim; 4. θ-States induced by the diffeomorphism group in canonically quantized gravity C. J. Isham; 5. Strong coupling quantum gravity: an introduction Martin Pilati; 6. Quantizing fourth order gravity theories S. M. Christensen; 7. Green's functions, states and renormalisation M. R. Brown and A. C. Ottewill; 8. Introduction to quantum regge calculus Martin Roček and Ruth Williams; 9. Spontaneous symmetry breaking in curved space-time D. J. Toms; 10. Spontaneous symmetry breaking near a black hole M. S. Fawcett and B. F. Whiting; 11. Yang-Mills vacua in a general three-space G. Kunstatter; 12. Fermion fractionization in physics R. Jackiw; Part II. Supergravity: 13. The new minimal formulation of N=1 supergravity and its tensor calculus M. F. Sohnius and P. C. West; 14. A new deteriorated energy-momentum tensor M. J. Duff and P. K. Townsend; 15. Off-shell N=2 and N=4 supergravity in five dimensions P. Howe; 16. Supergravity in high dimensions P. van Niewenhuizen; 17. Building linearised extended supergravities J. G. Taylor; 18. (Super)gravity in the complex angular momentum plane M. T. Grisaru; 19. The multiplet structure of solitons in the O(2) supergravity theory G. W. Gibbons; 20. Ultra-violet properties of supersymmetric gauge theory S. Ferrara; 21. Extended supercurrents and the ultra-violet finiteness of N=4 supersymmetric Yang-Mills theories K. S. Stelle; 22. Duality rotations B. Zumino; Part III. Cosmology and the Early Universe: 23. Energy, stability and cosmological constant S. Deser; 24. Phase transitions in the early universe T. W. B. Kibble; 25. Complete cosmological theories L. P. Grishchuk and Ya. B. Zeldovich; 26. The

  19. Best convective parameterization scheme within RegCM4 to downscale CMIP5 multi-model data for the CORDEX-MENA/Arab domain

    Science.gov (United States)

    Almazroui, Mansour; Islam, Md. Nazrul; Al-Khalaf, A. K.; Saeed, Fahad

    2016-05-01

    A suitable convective parameterization scheme within Regional Climate Model version 4.3.4 (RegCM4) developed by the Abdus Salam International Centre for Theoretical Physics, Trieste, Italy, is investigated through 12 sensitivity runs for the period 2000-2010. RegCM4 is driven with European Centre for Medium-Range Weather Forecasts (ECMWF) ERA-Interim 6-hourly boundary condition fields for the CORDEX-MENA/Arab domain. Besides ERA-Interim lateral boundary conditions data, the Climatic Research Unit (CRU) data is also used to assess the performance of RegCM4. Different statistical measures are taken into consideration in assessing model performance for 11 sub-domains throughout the analysis domain, out of which 7 (4) sub-domains give drier (wetter) conditions for the area of interest. There is no common best option for the simulation of both rainfall and temperature (with lowest bias); however, one option each for temperature and rainfall has been found to be superior among the 12 options investigated in this study. These best options for the two variables vary from region to region as well. Overall, RegCM4 simulates large pressure and water vapor values along with lower wind speeds compared to the driving fields, which are the key sources of bias in simulating rainfall and temperature. Based on the climatic characteristics of most of the Arab countries located within the study domain, the drier sub-domains are given priority in the selection of a suitable convective scheme, albeit with a compromise for both rainfall and temperature simulations. The most suitable option Grell over Land and Emanuel over Ocean in wet (GLEO wet) delivers a rainfall wet bias of 2.96 % and a temperature cold bias of 0.26 °C, compared to CRU data. An ensemble derived from all 12 runs provides unsatisfactory results for rainfall (28.92 %) and temperature (-0.54 °C) bias in the drier region because some options highly overestimate rainfall (reaching up to 200 %) and underestimate

  20. From Schawlow to Newton: An educational return

    Science.gov (United States)

    Sathe, D.

    Newton's laws of motion and his theory of gravitation are known for over 300 years. However, investigations of educators, from various countries and carried out in the last quarter of the 20t h century, show that the Aristotelian ideas keep persisting among students - in spite of learning thes e topics in schools and colleges. In the traditional examinations students do give answers in accordance with Newton's laws but in questionnaires of educators they ignore Newtonian laws unknowingly, and quite naturally give answers along the Aristotelian line of thought. Why do they give such contrasting answers? Should we take for granted that their understanding of Newtonian laws is satisfactory because of their correct answers in traditional exams, though not in questionnaires? Can these contrasting views affect their interest in physics? These are some questions that warrant our attention earnestly, as we gear up for the research and teaching in 21s t century. The author felt the need of focusing attention on the logical aspects of the subject, due to the global character of said problem. His decision was strengthened greatly, in late1970s, by the philosophy of Dennis Sciama and hence author's dedication of a letter to the editor to his memory, in the COSPAR Info. Bulletin /1/. Being a trained biochemist, author started looking for points, missed by the earlier educators - that means author started following the advice of Arthur Schawlow /2/ in late 1970s, though unknowingly. Sadly, author came to know of it after dedicating a lecture to the memory of Abdus Salam in a symposium in Samarkand, Uzbekistan. Therefore he is dedicating this presentation to the memory of Arthur Schawlow. According to the present author, the persistence of Aristotelian ideas and consequent contrasting performances of students are due to the logical conflicts between the basic concepts of physics itself. For example, the conflict between the treatment of uniform circular motion and the concept of

  1. Mixing and turbulent mixing in fluids, plasma and materials: summary of works presented at the 3rd International Conference on Turbulent Mixing and Beyond

    Science.gov (United States)

    Gauthier, Serge; Keane, Christopher J.; Niemela, Joseph J.; Abarzhi, Snezhana I.

    2013-07-01

    was held in the summer of 2011 at the Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy. The papers are arranged by TMB themes, and within each theme they are ordered alphabetically by the last name of the first author. The collection includes regular research papers, a few research briefs and review papers. The review papers are published as 'Comments' articles in Physica Scripta . Canonical turbulence and turbulent mixing. Six papers are devoted to canonical turbulence and turbulent mixing. Baumert presents a theory of shear-generated turbulence, which is based on a two-fluid concept. Gampert et al investigate the problem of adequate representation of turbulent structures by applying a decomposition of the field of the turbulent kinetic energy into regions of compressive and extensive strain. Paul and Narashima consider the dynamics of a temporal mixing layer using a vortex sheet model. Schaefer et al analyse the joint statistics and conditional mean strain rates of streamline segments in turbulent flows. Sirota and Zybin deepen their discussion of the connection between Lagrangian and Eulerian velocity structure functions in hydrodynamic turbulence. Talbot et al investigate the heterogeneous mixing by considering gases of very nearly equal densities and very different viscosities. Wall-bounded flows. Three papers are dedicated to wall-bounded flows. Mok et al use the Bayesian spectral density approach to identify the dominant free surface fluctuation frequency downstream of an oscillating hydraulic jump. Tejada-Martinez et al employ large eddy numerical simulations to study wind-driven shallow water flows with and without full-depth Langmuir circulation (parallel counter rotating vortices). Wu et al re-evaluate the Karman constant based on a multi-layer analytical theory of Prandtl's mixing length function. Non-equilibrium processes. This theme is represented by two papers. Chasheckhin and Zagumennyi consider non-equilibrium processes

  2. INTRODUCTION Outline of Round Tables Outline of Round Tables

    Science.gov (United States)

    Abarzhi, Snezhana I.; Sreenivasan, Katepalli R.

    2010-12-01

    The Second International Conference and Advanced School 'Turbulent Mixing and Beyond', TMB-2009, was held at the Abdus Salam International Centre for Theoretical Physics, (ICTP), Trieste, Italy on 27 July-7 August 2009. TMB-2009 united over 180 participants ranging from students to members of the National Academies of Sciences and Engineering, and including researchers at experienced and early stages of their carriers from leading scientific institutions in academia, national laboratories, corporations and industry worldwide. Responding to the community's inquiry and reaffirming the practices established at TMB-2007, two Round Tables were organized for the participants of TMB-2009 on 30 July 2009 and 6 August 2009 in the Oppenheimer Room at the Centre. The goals of the Round Tables were to encourage the information exchange among the members of the interdisciplinary and international TMB community, promote discussions regarding the state-of-the-art in TMB-related scientific areas, identify directions for frontier research, and articulate recommendations for future developments. This article is a summary of the collective work of the Round Table participants (listed alphabetically below by their last names), whose contributions form its substance and, as such, are greatly appreciated. Abarzhi, Snezhana I (University of Chicago, USA) Andrews, Malcolm (Los Alamos National Laboratory, USA) Belotserkovskii, Oleg (Institute for Computer Aided Design of the Russian Academy of Sciences, Russia) Bershadskii, Alexander (ICAR, Israel) Brandenburg, Axel (Nordita, Denmark) Chumakov, Sergei (Stanford University, USA) Desai, Tara (University of Milano-Bicocca, Italy) Galperin, Boris (University of South Florida, USA) Gauthier, Serge (Commissariat à l'Energie Atomique, France) Gekelman, Walter (University of California at Los Angeles, USA) Gibson, Carl (University of California at San Diego, USA) Goddard III, William A (California Institute of Technology, USA) Grinstein, Fernando

  3. From biologically-inspired physics to physics-inspired biology From biologically-inspired physics to physics-inspired biology

    Science.gov (United States)

    Kornyshev, Alexei A.

    2010-10-01

    foreseen at that time. But very soon Hertz understood how to generate them, Thomson how to receive them, and now we have the world all connected online. My next stamp goes to the Zhukovski equation of the hydrodynamics of a wing, which explained how aerodynamic lift force is generated. Now we can get from London to Washington in a third of a day, essentially due to that equation. Of the many things that the genius of Einstein discovered his energy-matter relation has led us to atomic power, whether we like it or not. Rutherford and Bohr unraveled the structure of atoms and all our materials science followed from it. Discovery of the transistor made the world of electronics and computers possible, and, again—whether we like it or not—most of us spend many hours daily staring at computer screens. Crick's equations and Franklin-Wilkins' observations (made possible by Roentgen's discovery that I omitted to mention after Maxwell) gave rise to the world of molecular biology which could also be easily forgotten by the wide public, if not our ever grateful forensic experts. Just two more milestones of much more 'modest' caliber. This is the discovery of lasers which are massively used for communication, in medicine and spectroscopy, including biological research. Next, I mention the discovery of scanning probe techniques, which allowed us to see individual atoms. For these two I did not even find stamps, but I am sure they must exist somewhere. The STM has just led Stuart Lindsey's team (University of Arizona) to the first steps towards ultrafast sequencing of DNA using functionalized STM tips. At the Abdus Salam International Center for Theoretical Physics there is no need to convince anyone that involved mathematics and physics is needed. But neither do we need to explain to anyone there that the applications of physics may be equally exciting as its fundamentals. The appreciation of massive achievements of physical methods in DNA research made it possible to host and

  4. Rainfall and temperature scenarios for Bangladesh for the middle of ...

    Indian Academy of Sciences (India)

    viding the opportunity for research work at ICTP and also to the Director, SAARC Meteorologi- cal Research Centre (SMRC), for allowing him to work as a Regular Associate at the ICTP to con- duct this study. The Bangladesh Meteorological. Department (BMD) is acknowledged for providing observational data. References.

  5. Diagnostic usefulness and changing value during irradiation of bone metabolic markers for metastatic bone tumor

    International Nuclear Information System (INIS)

    Doi, Kenji; Narabayashi, Isamu; Utsunomiya, Keita

    2007-01-01

    We examined the efficacy of Pyridinoline-cross-linked C-terminal telopeptide of type I collagen (ICTP) and C-terminal propep tide of the type I procollagen (PICP), as bone metabolic markers (BMM) that reflect the effects of radiotherapy in patients with metastatic bone tumors (MBT). One-hundred eight patients who had had malignant tumors and been suspected of developing MBT were measured for ICTP and PICP. Ninety six patients with recognized MBT and 12 patients without MBT were evaluated for the diagnostic accuracy of MBT. Out of the 96 cases, 49 received radiotherapy and were measured for ICTP and PICP before and after the treatment. The 49 cases were divided into 25 cases (Com group) that had all of the MBT irradiated and 24 cases (InCom group) that could not have all sites irradiated. Increase ratios from before to after the radiotherapy were compared between ICTP and PICP. In the 96 patients with MBT, both ICTP and PICP were observed to be significantly high. Diagnostic accuracy was 81.5% for ICTP, and 61.6% for PICP. InCom group showed an increase in ICTP by about 25% while no significant change was observed in the Com group. BMM has diagnostic significance in patients with MBT. Performing radiotherapy to every osseous lesion results in a decline or leveling-off of ICTP. (author)

  6. Nuclear data newsletter, No. 46, September 2008

    International Nuclear Information System (INIS)

    2008-09-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and database news concerning nuclear data libraries, computer codes and coordinated research projects and lists selected charts, reports and documents on nuclear data. Further it contains meeting reports of the Biennial Meeting of the International Nuclear Data Committee, 22-25 April 2008, IAEA Headquarters, Vienna, Austria; the Joint ICTP-IAEA Advanced Workshop on Model Codes for Spallation Reactions, 4-8 February 2008, ICTP, Trieste, Italy; the Workshop on Nuclear Structure and Decay Data: Theory and Evaluation, 28 April ? 9 May 2008, ICTP Trieste, Italy; the Joint ICTP-IAEA Workshop on Nuclear Reaction Data for Advanced Reactor Technologies, 19-30 May 2008, ICTP, Trieste, Italy and the Consultants Meeting on High-precision Beta-intensity Measurements and Evaluations for Specific PET Radioisotopes, 3-5 September 2008, IAEA, Vienna, Austria

  7. Fulltext PDF

    Indian Academy of Sciences (India)

    P. P. DIVAKARAN

    2017-11-24

    Nov 24, 2017 ... Bhabha at the head; they were able to persuade the very best in their fields to undertake long visits to India and lecture to us. Both Bohr and Salam gave lectures at TIFR during their Science Congress visit. Salam's, on the pio- neering Yang–Mills paper on non-Abelian gauge theory, had such an impact that ...

  8. Étude de la performance de la STEP du centre emplisseur de la ...

    African Journals Online (AJOL)

    Study of the performance of the WWTP filling station company Salam Gas - Skhirat Morocco. The present work designed to verify the operating effectiveness of society Step Salam Gas. The treated water is reused in the production process of the company. The characterization results at selected tapping points show that the ...

  9. Main natural hazards and vulnerability studies for some historical constructions and urban sectors of Valparaiso City (Chile)

    Science.gov (United States)

    Romanelli, F.

    2009-04-01

    The Project "MAR VASTO" ("Risk Management in Valparaíso/Manejo de Riesgos en Valparaíso, Servicios Técnicos", 2007) started in March 2007, with coordination of ENEA (Italian Agency for New Technologies, Energy and Environment), participation of several partners (Italy: University of Ferrara, Faculties of Architecture and Engineering; University of Padua, Faculty of Engineering; Abdus Salam International Centre for Theoretical Physics of Trieste; Chile: Valparaíso Technical University Federico Santa Maria, Civil Works Department; Santiago University of Chile, Division Structures Constructions Geotechnics), and support of local stakeholders. Being Valparaíso included since 2003 in the UNESCO Word Heritage List of protected sites, the project main goals are the following: to collect, analyze and elaborate the existing information, with a satisfying evaluation of main hazards; to develop a GIS digital archive, well organized, user-friendly and easy to be implemented in the future, providing maps and scenarios of specific and multiple risk; to provide a vulnerability analysis for three historical churches (San Francisco del Baron, Las Hermanitas de la Providencia, La Matríz, made by various materials - masonry, concrete, wood and adobe - and located in different city sites) and for a building stock in the Cerro Cordillera (partially inside the UNESCO area), analyzing more than 200 constructions; to suggest guidelines for future urban planning and strengthening interventions. In the framework of the MAR VASTO Project, the most important hazards have been investigated carried out. With regard to seismic hazard, "state-of-the-art" information has been provided by Chilean partners and stakeholders, using materials of several studies and stored in original earthquake reports, local newspapers and magazines. The activities performed by the Italian team regarded the definition, for the city of Valparaiso, of earthquake scenarios and maps based on the neo

  10. Professionalism perspectives among medical students of a novel medical graduate school in Malaysia

    Directory of Open Access Journals (Sweden)

    Haque M

    2016-07-01

    Full Text Available Mainul Haque,1 Zainal Zulkifli,2 Seraj Zohurul Haque,3 Zubair M Kamal,4 Abdus Salam,5 Vidya Bhagat,2 Ahmed Ghazi Alattraqchi,2 Nor Iza A Rahman2 1Unit of Pharmacology, Faculty of Medicine and Defense Health, National Defense University of Malaysia, Kem Sungai Besi, Kuala Lumpur, Malaysia; 2Faculty of Medicine, Universiti Sultan Zainal Abidin, Jalan Sultan Mahmud, Kuala Terengganu, Terengganu, Malaysia; 3School of Medicine, University of Dundee, Ninewells Hospital & Medical School, Dundee, UK; 4Sleep Research Unit, Toronto Western Hospital, University Health Network, Toronto, ON, Canada; 5Department of Medical Education, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Kuala Lumpur, Malaysia Abstract: Defining professionalism in this constantly evolving world is not easy. How do you measure degrees of benevolence and compassion? If it is so obvious to our profession, what professionalism is, then why is it so difficult to teach it to medical students and residents? Today’s definition of medical professionalism is evolving – from autonomy to accountability, from expert opinion to evidence-based medicine, and from self-interest to teamwork and shared responsibility. However, medical professionalism is defined as the basis for the trust in the patient–physician relationship, caring and compassion, insight, openness, respect for patient dignity, confidentiality, autonomy, presence, altruism, and those qualities that lead to trust-competence, integrity, honesty, morality, and ethical conduct. The purpose of this study is to explore professionalism in terms of its fundamental elements among medical students of Universiti Sultan Zainal Abidin (UniSZA. This was a cross-sectional study carried out on medical students of UniSZA. The study population included preclinical and clinical medical students of UniSZA from Year I to Year V of academic session 2014/2015. The simple random sampling technique was used to select the sample. Data were

  11. Pions to Quarks

    Science.gov (United States)

    Brown, Laurie Mark; Dresden, Max; Hoddeson, Lillian

    2009-01-01

    neutrino Frederick Reines; 25. Recollections on the establishment of the weak-interaction notion Bruno M. Pontecorvo; 26. Symmetry and conservation laws in particle physics in the fifties Louis Michel; 27. A connection between the strong and weak interactions Sam B. Treiman; Part VII. Weak interactions and parity nonconservation; 29. The nondiscovery of parity nonconservation Allan Franklin; 30. K-meson decays and parity violation Richard H. Dalitz; 31. An Experimentalist's Perspective Val L. Fitch; 32. The early experiments leading to the V - A interaction Valentine L. Telegdi; 33. Midcentury adventures in particles physics E. C. G. Sudarshan; Part VIII. The particle physics community; 34. The postwar political economy of high-energy physics Robert Seidel; 35. The history of CERN during the early 1950s Edoardo Amaldi; 36. Arguments pro and contra the European laboratory in the participating countries Armin Hermann; 37. Physics and excellences of the life it brings Abdus Salam; 38. Social aspects of Japanese particle physics in the 1950s Michiji Konuma; Part IX. Theories of hadrons; 39. The early S-matrix theory and its propagation (1942-1952) Helmut Rechenberg; 40. From field theory to phenomenology: the history of dispersion relations Andy Pickering; 41. Particles as S-matrix poles: hadron democracy Geoffrey F. Chew; 42. The general theory of quantised fields in the 1950s Arthur S. Wrightman; 43. The classification and structure of hadrons Yuval Ne'eman; 44. Gauge principle, vector-meson dominance and spontaneous symmetry breaking Yoichiro Nambu; Part X. Personal overviews; 45. Scientific impact of the first decade of the Rochester conferences (1950-1960) Robert E. Marshak; 46. Some reflections on the history of particle physics in the 1950s Silvan S. Schweber; 47. Progress in elementary particle theory 1950-1964 Murray Gell-Mann.

  12. المقاصد القرآنية في فكر النورسي - Dr. ‘Abd al-Salam al-Ahmar: The Qur’anic Aims in al-Nursi’s Thought

    OpenAIRE

    الأحمر, ذ. عبد السلام

    2015-01-01

    Yeni Sayfa 1المقاصد القرآنية في فكر النورسي ذ. عبد السلام الأحمر1أولا: مفهوم المقاصد ومراتبهاالمقاصد جمع مقصد، وهو ما تقصده وتريد الوصول إليه، فهو مقصود لك ولسعيك. ولذلك يستعمل المقصِد والمقصود بمعنى واحد، ومقاصد الشريعة هي الغايات المستهدفة والنتائج والفوائد المرجوة من وضع الشريعة جملة ومن وضع أحكامها تفصيلا.2وذهب الدكتور طه عبد الرحمن3 في تحديد معنى مقصد إلى كونه لفظا مشتركا بين معاني ثلاثة وهي:قصد بمعنى ضد الفعل "لغ" باعتبار اللغو هو الخلو عن الفائدة وصرف الدلالة، فيكون ا...

  13. Distinguishing new physics scenarios with polarized electron

    Indian Academy of Sciences (India)

    Author Affiliations. A A Pankov1 N Paver2 A V Tsytrinov. ICTP Affiliated Centre, Pavel Sukhoi Technical University, Gomel 246746, Belarus; University of Trieste and INFN-Trieste Section, 34100 Trieste, Italy ...

  14. Lectures on the basis of physics

    International Nuclear Information System (INIS)

    Cook, A.

    1990-09-01

    The paper contains the following three lectures given by Alan Cook at ICTP Trieste in August, 1990: ''Metrology and the Structure of Physics'', ''Why does Mathematical Physics Work?'' and ''Probability, Chaos and the Environment. 9 refs

  15. The carboxy-terminal pyridinoline cross-linked telopeptide of type I collagen in serum as a marker of bone resorption

    DEFF Research Database (Denmark)

    Hassager, C; Jensen, L T; Pødenphant, J

    1994-01-01

    Carboxy-terminal pyridinoline cross-linked telopeptide of type I collagen (ICTP) in serum has recently been proposed as a new biochemical marker of bone resorption. In the present study we compared serum ICTP with radiopharmaceutical and histomorphometric measurements of bone turnover...... in postmenopausal women with mild osteoporosis, and assessed the effect of hormone replacement therapy (HRT) (2 mg 17 beta-estradiol plus 1 mg norethisterone daily) and anabolic steroid therapy (50 mg nandrolone decanoate (ND) i.m. every 3 weeks) on serum ICTP in two double-blind placebo-controlled studies with 55...... to 75-year-old women. Serum ICTP measured by radioimmunoassay (RIA) correlated significantly with the 24-hour whole body retention of 99m-technetium diphosphonate (Rho = 0.47, P

  16. Collagen derived serum markers in carcinoma of the prostate

    DEFF Research Database (Denmark)

    Rudnicki, M; Jensen, L T; Iversen, P

    1995-01-01

    Three new collagen markers deriving from the collagenous matrix, e.g. carboxyterminal propeptide of type I procollagen (PICP), carboxy-terminal pyridinoline cross-linked telopeptide of type I collagen (ICTP), and aminoterminal propeptide of type III procollagen (PIIINP) were used for the diagnose......, ICTP, and PICP did not differ between these two groups. In patients with metastatic prostatic cancer all five markers were increased compared to the level measured in patients with localized cancer (p

  17. Untitled

    Indian Academy of Sciences (India)

    dimensional space-time continuum by Minkowski. Unification of electromagnetism and weak interaction was obtained by Glashow, Weinberg and Salam. In 1961, Glashow 1 unified the weak and electromagnetic interactions using the gauge group ...

  18. The Ghost of Electricity: A History of Electron Theory from 1897 to 1987.

    Science.gov (United States)

    Adams, S. F.

    1988-01-01

    Discusses the history of electron theory from 1897 to 1987. Includes the works of some physicists, such as Thomson, Lorentz, De Broglie, Bohr, Pauli, Dirac, Feynman, Wheeler, Weinberg, and Salam. (YP)

  19. Iisraeli valitsus haub sõjakäiku Gazasse / Igor Taro

    Index Scriptorium Estoniae

    Taro, Igor

    2007-01-01

    Iisraeli võimude plaanist lõpetada radikaalse islamiliikumise Hamas omavoli Gaza sektoris. Palestiina autonoomia uueks peaministriks nimetati Salam Fayyad. Vt. samas: Röövitud reporteril lootus vabaneda

  20. ESBL determination and antibacterial drug resistance pattern of ...

    African Journals Online (AJOL)

    ESBL determination and antibacterial drug resistance pattern of Klebsiella Pneumoniae amongst patients at PIMS Islamabad. Jafar Khan, Noor Naz, Naser M AbdEl-Salam, Nayab Nayab, Anum Tabassum, H Hussain, Riaz Ullah ...

  1. Lääs koondub Palestiina presidendi selja taha

    Index Scriptorium Estoniae

    2007-01-01

    Palestiina Omavalitsuse president Mahmoud Abbas kuulutas välja eriolukorra, vabastas ametist äärmusrühmituse Hamas valitsuse ning nimetas uue valitsuse juhiks sõltumatu parlamendiliikme Salam Fayyadi

  2. Egyptian Journal of Medical Human Genetics - Vol 9, No 1 (2008)

    African Journals Online (AJOL)

    Indicators of Apoptosis in Duchenne Muscular Dystrophy Patients · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. E Abdel-Salam, L Mansour, I Abdel-Meguid, S Korraa, 41-50 ...

  3. The decay of orbital angular momentum entanglement in atmospheric turbulence

    CSIR Research Space (South Africa)

    Roux, FS

    2013-07-01

    Full Text Available Salam International Centre for Theoretical Physics, Trieste, Italy, 8-12 July 2013 The decay of orbital angular momentum entanglement in atmospheric turbulence Roux FS CSIR, National Laser Centre, Pretoria, 0001 Corresponding email: FSroux...

  4. `That I may know the inmost force that binds the world and guides its course`

    Energy Technology Data Exchange (ETDEWEB)

    Dehmelt, H. [Washington Univ., Seattle, WA (United States). Dept. of Physics

    1995-12-31

    The talk touches upon the following subjects: Goethe`s Faust, the magic of Democritus` `{alpha}{tau}{omicron}{mu}{omicron}{nu}`, magnetism of the neutron, a neutral particle, the crucial problem of physics, crucial experiments, seeing an atom with my eyes, bringing an electron to rest, measuring electron magnetism, proton magnetism, electron radius from its magnetism, speculating on Salam`s sub sub-...-quarks and the cosmon, the simplest thing that ever was 8 refs, 8 figs

  5. Prof. M. G. K. Menon | History | About IASc | Indian Academy of ...

    Indian Academy of Sciences (India)

    ... BHU, Utkal, Aligarh Muslim, North Bengal, IIT Madras and Kharagpur: DSc. h c. Modi Award for Science 94. Abdus Salem Medal 96; Sc. Work in Cosmic Rays, Particle Physics. Distinguished for investigations in the field of cosmic ray studies and in particular on the high-energy inter-actions of elementary particles.

  6. Colossal magnetoresistance manganites: A new approach

    Indian Academy of Sciences (India)

    Unknown

    Scientific Research, Jakkur PO, Bangalore 560 064, India. 3The Abdus ... hopping, and band-like, nonpolaronic states b, leading to a new 2-band model for manganites ..... T. −. = ∆ is close to what is observed. The i – b hybridisation is strongest in a metal because in it both the states are degenerate in energy; this broadens.

  7. International Centre for Theoretical Physics. Scientific activities in 1987

    International Nuclear Information System (INIS)

    1988-12-01

    A review of the scientific activities of the ICTP Trieste in 1987, including workshops, research and training for research is presented. The scientific program consists of eight main fields: fundamental physics, condensed matter, atomic and molecular physics, mathematics, physics and energy, physics and environment, applied physics and high technology, physics and development. In addition to a brief description of each workshop, symposium, college, meeting and activity or project sponsored by ICTP, a list of preprints and internal reports issued in 1987 is included. Tabs

  8. Collagen derived serum markers in carcinoma of the prostate

    DEFF Research Database (Denmark)

    Rudnicki, M; Jensen, L T; Iversen, P

    1995-01-01

    Three new collagen markers deriving from the collagenous matrix, e.g. carboxyterminal propeptide of type I procollagen (PICP), carboxy-terminal pyridinoline cross-linked telopeptide of type I collagen (ICTP), and aminoterminal propeptide of type III procollagen (PIIINP) were used for the diagnose...... of prostatic bone metastases. Blood samples were obtained prior to biopsy or TURP. Serum PICP, PIIINP and ICTP were measured with commercial available RIAs and PSA by IRMA. Serum PSA was increased in patients with local prostatic cancer compared with patients with hyperplasia (p

  9. Realistic modeling of seismic input for megacities and large urban areas

    Science.gov (United States)

    Panza, G. F.; Unesco/Iugs/Igcp Project 414 Team

    2003-04-01

    , supply a particularly powerful tool for the prevention aspects of Civil Defense. We present a selection of the main results obtained for the cities of Algiers, Beijing, Bucharest, Cairo, Debrecen, Delhi, Naples, Rome, Russe, Santiago de Cuba, Sofia, Thessaloniki and Zagreb. The UNESCO/IUGS/IGCP PROJECT 414 team members are: Giuliano F. Panza (1,2) (Chairman), Leonardo Alvarez (3), Abdelkrim Aoudia (1,2), Abdelhakim Ayadi (4), Hadj Benhallou (4,5), Djillali Benouar (6), Zoltan Bus (7), Yun-Tai Chen (8), Carmen Cioflan (9), Zhifeng Ding (8), Attia El-Sayed (10), Julio Garcia (3), Bartolomeo Garofalo (11), Alexander Gorshkov (12), Katalin Gribovszki (13), Assia Harbi (4), Panagiotis Hatzidimitriou (14), Marijan Herak (15), Mihaela Kouteva (16), Igor Kuznetzov (12), Ivan Lokmer (15), Said Maouche (4), Gheorghe Marmureanu (9), Margarita Matova (16), Maddalena Natale (11), Concettina Nunziata (11), Imtiyaz Parvez (17,1), Ivanka Paskaleva (16), Ramon Pico (18), Mircea Radulian (9), Fabio Romanelli (2), Alexander Soloviev (12), Peter Suhadolc (2), Gyõzõ Szeidovitz (7), Petros Triantafyllidis (14), Franco Vaccari (2,19). (1) The Abdus Salam International Center for Theoretical Physics, SAND Group, Mirarmar, Trieste, Italy. (2) Department of Earth Sciences, University of Trieste, Via E. Weiss 1, 34127 Trieste, Italy. (3) Centro Nacional de Investigaciones Sismologicas, Cuba. (4) Centre de Recherche en Astronomie, Astrophysique et Geophysique, BP. 63, Bouzaréah, Alger, Algérie. (5) Faculté des Sciences de la Terre de l'Aménagment du Territoire et de la Géographie, USTHB, Alger, Algérie. (6) University of Algiers (USTHB), Civil Engineering Dpt., Alger, Algeria. (7) Hungarian Academy of Sciences, Seismological Observatory of GGRI, H-1112 Budapest, Meredek u. 18, Hungary. (8) Institute of Geophysics, China Seismological Bureau, Beijing, 100081, China. (9) National Institute for Earth Physics, Calugareni 12, P.O.Box: MG 2, 76900 Bucharest-Magurele, Romania. (10) Department of

  10. Advantages of unity with SU(4)-color: Reflections through neutrino oscillations, baryogenesis and proton decay

    Science.gov (United States)

    Pati, Jogesh C.

    2017-03-01

    By way of paying tribute to Abdus Salam, I first recall the ideas of higher unification which the two of us introduced in 1972-73 to remove certain shortcomings in the status of particle physics prevailing then, and then present their current role in theory as well as experiments. These attempts initiated the idea of grand unification and provided the core symmetry-structure G(2, 2, 4) = SU(2)L × SU(2)R × SU(4)-color towards such a unification. Embodied with quark-lepton unification and left-right symmetry, the symmetry G(2, 2, 4) is uniquely chosen as being the minimal one that permits members of a family to belong to a single multiplet. The minimal extension of G(2, 2, 4) to a simple group is given by the attractive SO(10)-symmetry that was suggested a year later. The new concepts, and the many advantages introduced by this core symmetry (which are, of course, retained by SO(10) as well) are noted. These include explanations of the observed: (i) (rather weird) electroweak and color quantum numbers of the members of a family; (ii) quantization of electric charge; (iii) electron-proton charge-ratio being - 1; (iv) the co-existence of quarks and leptons; (v) likewise that of the three basic forces — the weak, electromagnetic and strong; (vi) the non-trivial cancelation of the triangle anomalies within each family; and opening the door for (vii) the appealing concept of parity being an exact symmetry of nature at the fundamental level. In addition, as a distinguishing feature, both because of SU(4)-color and independently because of SU(2)R as well, the symmetry G(2, 2, 4) introduced, to my knowledge, for the first time in the literature: (viii) a new kind of matter — the right-handed (RH) neutrino (νR) — as a compelling member of each family, and together with it; (ix) (B-L) as a local symmetry. The RH neutrions — contrary to prejudices held in the 1970’s against neutrinos being massive and thereby against the existence of νR’s as well — have in

  11. Tribute to Professor Padma Kant Shukla on the occasion of his 60th birthday

    Science.gov (United States)

    Mendis, Asoka

    2010-08-01

    to his schoolteacher's expectations he later graduated (with honors) from Agra University at the age of 17 and then proceeded to obtain his PhD in physics from the Hindu Banaras University, at the age of 21. He then proceeded to the University of Umeå, Sweden, on scholarship, and quickly blossomed to his full potential under the caring guidance of Prof. Lennart Stenflo, while also earning his second PhD, three years later. These early experiences deeply influenced Padma; on the one hand he recognizes that raw talent exists in all corners of the world, and on the other hand he feels a deep commitment to help discover, nurture, and mentor such talent. Toward this end Padma did several things. He organized numerous international meetings in both developed and developing nations. He has also continued to organize the annual Plasma Physics Summer School at the Abdus Salam International Center for Theoretical Physics in Trieste, Italy. He has used these opportunities to discover promising young scientists from the world over, helping them to come to his host university in Bochum, with support obtained from various international organizations, and mentored them. These young scholars, haling from every continent of the world, have gone on to become active scientists in their own right and many have proceeded to become leading researchers, educators, and administrators in their home countries. It is in recognition of his “extraordinary efforts in the discovery, the nurturing and mentoring of scientific talent across the globe” that he received the highly prestigious Nicholson Medal, awarded by the American Physical Society, for human outreach by a leading scientist in 2005. In recognition of his outstanding scientific contributions Padma has received numerous international honors including several honorary doctorates, foreign membership of several national academies, fellowships of a number of international scientific organizations and prizes. Yet, I think that among all

  12. INTRODUCTION Summary of Papers Summary of Papers

    Science.gov (United States)

    Gauthier, Serge; Abarzhi, Snezhana I.; Sreenivasan, Katepalli R.

    2010-12-01

    review various aspects of Turbulent Mixing that were discussed at the Second International Conference and Advanced School 'Turbulent Mixing and Beyond', TMB-2009, held in summer 2009 at the Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy. The papers are arranged by TMB themes and within each theme they are ordered alphabetically by the last name of the first author, with tutorials following research contributions. Canonical turbulence and turbulent mixing. The theme of canonical turbulence and turbulent mixing is considered by several authors. Casciola et al investigate the dynamics of inertial particles dispersed in a turbulent jet and compare their numerical modeling results with the classical similarity theory of the jet far-field. Remarkable agreement is found between the theory and the direct numerical simulations (DNS), including decay of Stokes numbers with the distance from the origin, self-similarity of the mean axial particle velocity profile, etc. Nagata considers complex turbulent flows, which are known to exhibit no linear critical point for the laminar states, and which are linearly stable at finite Reynolds numbers. Square duct flow and sliding Couette flow in an annulus are considered and nonlinear traveling-wave states are found for the flows with the use of the homotopy approach developed by the author. These states may constitute a skeleton around which a time-dependent trajectory in the phase space is organized. Teitelbaum and Mininni study a decaying 3D incompressible turbulence, which mimicks turbulent mixing in geophysical flows, with rotation rendering the flow anisotropic at large scales. The authors analyze three DNS results (without and with rotation, and with helicity), observe a decoupling of the modes normal to the rotation axis, and show that the helicity decreases the decay rate of turbulence. Wang and Peters investigate the structure of turbulence by studying strain rates of various scalars, including a

  13. to view fulltext PDF

    Indian Academy of Sciences (India)

    International Conference on Algebra and Geometry. From 7th - 14th December 2001 ... Centre for Development Exchange), USA and ICTP ( International Centre for Theoretical. Physics), Italy. National: ... To Apply: Post Graduate (MSc/ MPhil - including ongoing) students, Research Scholars, Post. Doctoral Fellows and ...

  14. Markers of collagen synthesis is related to blood pressure and vascular hypertrophy: a LIFE substudy

    DEFF Research Database (Denmark)

    Olsen, M H; Christensen, M K; Wachtell, K

    2005-01-01

    with a losartan- or an atenolol-based regimen. Furthermore, we measured intima-media thickness of the common carotid arteries (IMT), minimal forearm vascular resistance (MFVR) by plethysmography and ambulatory 24-h BP in around half of the patients. At baseline, PICP/ICTP was positively related to IMT (r=0.24, P...

  15. ALMERA newsletter, No. 3, June 2010

    International Nuclear Information System (INIS)

    2010-07-01

    In this issue: ALMERA activities; ALMERA meetings; ALMERA interlaboratory comparison exercises; Other news (The new IAEA-413 reference material: Major, Minor and Trace Elements in Algae; ICTP/IAEA Advanced School on in-situ X-ray Fluorescence and Gamma Ray Spectrometry); ALMERA in Member States; Publications of potential interest to ALMERA members; ALMERA Network Laboratories

  16. Curiosity, ambition and foolhardiness

    Indian Academy of Sciences (India)

    Lawrence

    rotated (was it the J cross B force?) and the house plunged into ... still remains a crucial time in an Indian girl's life as it generally ... sional life. Since then there hasn't been an unaccounted moment. Being in the world of learning at the ICTP, I regained my curios- ity, and, more important, my foolhardiness which propelled me ...

  17. Collagen derived serum markers in carcinoma of the prostate

    DEFF Research Database (Denmark)

    Rudnicki, M; Jensen, L T; Iversen, P

    1995-01-01

    Three new collagen markers deriving from the collagenous matrix, e.g. carboxyterminal propeptide of type I procollagen (PICP), carboxy-terminal pyridinoline cross-linked telopeptide of type I collagen (ICTP), and aminoterminal propeptide of type III procollagen (PIIINP) were used for the diagnose...

  18. Resources for Developing Country Researchers

    International Development Research Centre (IDRC) Digital Library (Canada)

    Melanie Brunet

    fields of physics and mathematics. The service requires individual registration: http://ejds.ictp.it/ejds/faces/register.xhtml Language: Primarily English. Free Medical Journals (http://www.freemedicaljournals.com/) and Free Books4 Doctors · (http://www.freebooks4doctors.com/) Established by Flying Publishers, these two sites ...

  19. A microspectroscopic study of the electronic homogeneity of ordered ...

    Indian Academy of Sciences (India)

    Unknown

    Present address: aMaterials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta,. Midori-ku, Yokohama 226-8503, Japan. bDepartment of Physics, Tohoku University, ..... Acknowledgement. We thank ICTP-Elettra Users Programme and De- partment of Science and Technology for financial support.

  20. Training-induced changes in peritendinous type I collagen turnover determined by microdialysis in humans

    DEFF Research Database (Denmark)

    Langberg, Henning; Rosendal, L; Kjaer, M

    2001-01-01

    1. Acute exercise is found to increase collagen type I formation locally in peritendinous connective tissue of the Achilles' tendon in humans, as determined from changes in interstitial concentrations of collagen propeptide (PICP) and a collagen degradation product (ICTP) by the use of microdialy...

  1. Dabholkar, Prof. Atish Shripad

    Indian Academy of Sciences (India)

    Date of birth: 16 September 1963. Specialization: Quantum Gravity, Superstring Theory and Black Holes Address: Senior Research Scientist, International Centre for Theoretical Physics, 11, Strada Costiera, 34151 Trieste, Italy Contact: Office: (+39) 040 2240 285. Email: atish@ictp.it. YouTube; Twitter; Facebook; Blog ...

  2. Statistical theory of neutron-nuclear reactions

    International Nuclear Information System (INIS)

    Moldauer, P.A.

    1981-01-01

    In addition to the topics dealt with by the author in his lectures at the Joint IAEA/ICTP Course held at Trieste in 1978, recent developments in the statistical theory of multistep reactions are reviewed as well as the transport theory and intranuclear cascade approaches to the description of nuclear multi-step processes. (author)

  3. Electron spectroscopic investigation of metal–insulator transition in ...

    Indian Academy of Sciences (India)

    Unknown

    The valence band investigation was carried out at the Vacuum Ultraviolet (VUV) photoemission beamline, 3⋅2R at the Italian synchrotron radiation centre, .... Scientific and Industrial Research, New Delhi for a fellowship. SRK thankfully acknowledges the support of ICTP Programme for Training and Research in Italian.

  4. A minicourse on moduli of curves

    International Nuclear Information System (INIS)

    Looijenga, E.

    2000-01-01

    These are notes that accompany a short course given at the School on Algebraic Geometry 1999 at the ICTP, Trieste. A major goal is to outline various approaches to moduli spaces of curves. In the last part I discuss the algebraic classes that naturally live on these spaces; these can be thought of as the characteristic classes for bundles of curves. (author)

  5. Association of pioglitazone treatment with decreased bone mineral density in obese premenopausal patients with polycystic ovary syndrome: a randomized, placebo-controlled trial

    DEFF Research Database (Denmark)

    Glintborg, D.; Andersen, Mikael; Hagen, C.

    2008-01-01

    with PCOS had significantly higher levels of ICTP, fasting insulin, and testosterone than controls, whereas no differences were measured in ALP, PTH, body composition, or BMD. Pioglitazone treatment was followed by reduced BMD [geometric means (-2 to +2 sd)]: lumbar spine 1.140 (0.964-1.348) vs. 1.127 (0...

  6. Interplay between grand unification and supersymmetry in SU(5 ...

    Indian Academy of Sciences (India)

    This work is based on the papers [1–5]. I had the pleasure to work with Charan Aulakh (3 papers together) and it was a very fruitful experience (the average citation per paper is, at the day of writing, 112), from which I learned a lot. These were (for me) magic years spent together in ICTP. We have been discussing mainly ...

  7. Computational and Theoretical Investigations of Strongly Correlated Fermions in Optical Lattices

    Science.gov (United States)

    2013-08-29

    ADDRESS(ES) 6. AUTHORS 7. PERFORMING ORGANIZATION NAMES AND ADDRESSES U.S. Army Research Office P.O. Box 12211 Research Triangle Park, NC 27709...Superconductivity:100 years young", Natal, Brasil , May 16-27 (2011). 30. Invited speaker, \\Workshop on Frontiers in Ultracold Fermi Gases", ICTP, Trieste

  8. Analytical calculation of the transition to complete phase ...

    Indian Academy of Sciences (India)

    05508-090 S˜ao Paulo, Brazil. *Corresponding author. E-mail: cerdeira@ictp.it. Abstract. Here we present a system of coupled phase oscillators with nearest neighbors coupling, which we study for different boundary conditions. We concentrate at the tran- sition to the total synchronization. We are able to develop exact ...

  9. Tumor necrosis factor-α and receptor activator of nuclear factor-κB ligand augment human macrophage foam-cell destruction of extracellular matrix through protease-mediated processes.

    Science.gov (United States)

    Skjøt-Arkil, Helene; Barascuk, Natasha; Larsen, Lise; Dziegiel, Morten; Henriksen, Kim; Karsdal, Morten A

    2012-02-01

    By secreting proteases such as cathepsins and matrix metalloproteinases (MMPs), macrophage foam cells may be a major cause of ruptured atherosclerotic plaques. The aims of the present study were to investigate in vitro role of human macrophage foam cells in degrading type I collagen, a major component of extracellular matrix (ECM) in plaques, and to establish whether the pro-inflammatory molecules, tumor necrosis factor (TNF)-alpha, and receptor activator of nuclear factor-κB ligand (RANK-L) increase this degradation. CD14+ monocytes isolated from peripheral blood were differentiated into macrophage foam cells and cultured on a type I collagen matrix in the presence of TNF-alpha and RANK-L. Matrix degradation was measured by the cathepsin K-generated C-terminal cross-linked telopeptide of type I collagen (CTX-I) and the MMP-generated carboxyterminal telopeptide of type I collagen (ICTP) in supernatants showing that macrophage foam cells secrete MMPs and cathepsin K, resulting in release of ICTP and CTX-I. Stimulation with TNF-alpha increased CTX-I and ICTP dose dependently, with ICTP levels increasing by 59% and CTX-I levels increasing by 43%. RANK-L enhanced the release of CTX-I and ICTP by 56% and 72%, respectively. This is, to our knowledge, the first data describing a simple in vitro system in which macrophage foam cells degradation of matrix proteins can be monitored. This degradation can be enhanced by cytokines since TNF-alpha and RANK-L significantly increased the matrix degradation. This in vitro system in part is a model system for the macrophage-mediated proteolytic degradation of the ECM, which is found in many diseases with an inflammatory component.

  10. Author Details

    African Journals Online (AJOL)

    Abdel-Salam, E. Vol 9, No 1 (2008) - Articles Indicators of Apoptosis in Duchenne Muscular Dystrophy Patients Abstract PDF · Vol 9, No 2 (2008) - Articles Cytokines and growth factors in Duchene muscular dystrophy patients. Abstract PDF · Vol 10, No 2 (2009) - Articles Caveolin 3 gene and mitochondrial tRNA methionin ...

  11. Author Details

    African Journals Online (AJOL)

    Abdel-Salam, BKA-H. Vol 11, No 2 (2010) - Articles Comparing effects of interleukin-2 and interleukin-4 on the expression of MHC class II, CD80 and CD86 on polymorphonuclear neutrophils. Abstract PDF. ISSN: 1110-8630. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

  12. Palestinian Security Sector Reform : the View of the Public | CRDI ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    In its August 2009 platform, Building Palestinian State Institutions, the government of Salam Fayyad has committed itself to modernizing the Palestinian security sector based on the rule of law and oversight by the legislature and judicial authorities. However, the process is currently being conducted without parliamentary ...

  13. THE GROWTH AND DEVELOPMENT OF ISLAM IN EPE, LAGOS ...

    African Journals Online (AJOL)

    HP

    Baba Salam Mosque, Zumratul. Islamiyyah Central Mosque, Papa Epe. (Central Mosque). Alhaji R. Ola Sadiq. Sadiq Ratibi Mosque Ibonwon.(Ratibi. Mosque). Alhaji Salawu Saka Olorunlogbon Salawu Mosque, Poka Epe (Central. Mosque). Sources: Field work. *These individuals were Muslim philanthropists, clerics and.

  14. Effect of the use of curing salts and of a starter culture on the sensory and microbiological characteristics of homemade salamis

    Directory of Open Access Journals (Sweden)

    Cinthia Bittencourt Spricigo

    2005-06-01

    Full Text Available Homemade salamis may have their food safety guaranteed by means of the addition of curing salt and starter cultures, without loosing their traditional manufacturing recipes brought to Brazil by the Italian immigration in the early 20th century. In this work, the influence of curing salt and of a starter culture, composed of Lactobacillus and Staphylococcus, over the sensory and microbiological characteristics of Italian type salamis, containing 3% lactose and 0.5% saccharose, was evaluated. The starter culture and the curing salt inhibited the development of Staphylococcus aureus and of coliforms, and the salamis added with curing salt presented better color attributes.Os salames produzidos artesanalmente podem ter sua segurança alimentar garantida pela adição de sal de cura e de culturas iniciadoras sem perda das receitas tradicionais trazidas pela imigração italiana do início do século vinte. Neste trabalho, a partir da produção de salames com 3% de lactose e 0,5% de sacarose, avaliou-se a influência do sal de cura e da cultura iniciadora, composta de Lactobacillus e Staphylococcus, sobre as características sensoriais e microbiológicas dos salames. A cultura iniciadora e o sal de cura inibiram o crescimento de Staphylococcus aureus e de coliformes totais, sendo que os salames adicionados de sal de cura apresentaram uma melhor coloração.

  15. Factors determining the use of botanical insect pest control methods ...

    African Journals Online (AJOL)

    user

    2009-05-16

    May 16, 2009 ... 3Department of Agricultural Economics, Egerton University, P.O. Box 536 20115 Egerton, Kenya. 4Department of Botany, Makerere University, P.O. Box 7062, Kampala, Uganda. 5Department of Chemistry, The Open. University of Tanzania, P.O. Box 31608, DAR ES SALAM, Tanzania. Accepted 16 May ...

  16. Literary Translation, Translating Culture: The Case of Shahriyar, the Famous Iranian Azeri Poet

    Science.gov (United States)

    Kianbakht, Saijad

    2016-01-01

    A literary translation is a device of art used to release the text from its dependence on prior cultural knowledge (Herzfeld, 2003). The present research investigates the use of pragmatic equivalence in two translations of the Azeri Turkish long poem "Haydar Babaye Salam" by "Shahriyar." Based on Koller's theory of equivalence…

  17. All projects related to | Page 311 | IDRC - International Development ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2010-10-01

    In its August 2009 platform, Building Palestinian State Institutions, the government of Salam Fayyad has committed itself to modernizing the Palestinian security sector based on the rule of law and oversight by the legislature and judicial authorities. Start Date: October 1, 2010. End Date: February 26, 2013. Topic: POLICE.

  18. Regeneration from embryogenic callus and suspension cultures of ...

    African Journals Online (AJOL)

    ehab

    2012-04-25

    Apr 25, 2012 ... source of palmerosa, citronella, lemon-grass and oil of. Malabar, respectively. C. jwarancusa is used as condiment and for medicinal purpose. ... and rinsed under running tap water for 15 min, then washed with. El-Bakry and Abdel-Salam 10099 double distilled H2O (ddH2O). Seeds were then treated in 95 ...

  19. Author Details

    African Journals Online (AJOL)

    Salam, S. Vol 9, No 4S (2017): Special Issue - Articles Disparity refinement process based on RANSAC plane fitting for machine vision applications. Abstract PDF. ISSN: 1112-9867. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

  20. On the transition period from chemical to biological evolution

    International Nuclear Information System (INIS)

    Chela-Flores, J.

    1991-06-01

    We discuss the consequences of the hypothesis that biological evolution was contemporary with an important event in chemical evolution, namely, the induction of a small chiral bias by the electroweak neutral interaction, amplified by the Salam enhancement factor, which we discuss in terms of familiar crystallographic terms. (author). 18 refs, 3 tabs

  1. Weak currents

    International Nuclear Information System (INIS)

    Leite Lopes, J.

    1976-01-01

    A survey of the fundamental ideas on weak currents such as CVC and PCAC and a presentation of the Cabibbo current and the neutral weak currents according to the Salam-Weinberg model and the Glashow-Iliopoulos-Miami model are given [fr

  2. Journal of Genetics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Permanent link: https://www.ias.ac.in/article/fulltext/jgen/094/01/0121-0124. Keywords. homocysteine; MTHFR; Mendelian population; gene–environment interaction. Author Affiliations. Huidrom Suraj Singh1 2 Salam Kabita Devi1 3 Kallur Nava Saraswathy1. Molecular Anthropology Laboratory, Department of Anthropology, ...

  3. Isolation and Characterization of Hydrocarbon-Degrading Bacteria ...

    African Journals Online (AJOL)

    ADOWIE PERE

    primarily at automobile service stations and from pipelines has been experienced at an alarming rate. Marine spills are also now becoming a frequent and major source of water and coastal contamination. (Salam, 1996). A variety of technologies is currently available to treat soil contaminated with hazardous materials,.

  4. Research Article Special Issue

    African Journals Online (AJOL)

    2016-05-15

    May 15, 2016 ... because he didn't have a good memory thereof, but his compulsory residence in Tehran and familiarity with poetry ... Turkish poems especially Heydar Babaya Salam, which has had a tremendous impact on promoting .... knows how to create poetry and in what form and color" (Musharraf, 2003). The most ...

  5. Evaluation of BCL-2 and transforming growth factor alpha ...

    African Journals Online (AJOL)

    Evaluation of BCL-2 and transforming growth factor alpha oncoproteins in patients with chronic hepatitis C infection: impact on hepatocellular carcinoma. Mahmoud I Hassan, Amal Abou El Fadle, Gamal M Kenawy, Fayda I Abdel Motaleb, Fatma M AbdelSalam ...

  6. Gauge theories of weak, electromagnetic and strong interactions

    International Nuclear Information System (INIS)

    Boehm, M.; Joos, H.

    1978-05-01

    This 10 lectures are devided into the chapters: Phenomenological basis of the quantum chromodynamics, phenomenology of weak interactions, quantum electrodynamics and gauge invariance, from the fermimodel to the quantum flavor dynamics, on the quantum theory of yang-mills-fields, spontaneous symmetry breaking - the Higgs-Kibble-mechanism, the Salam-Weinberg-model, asymptotic freedom, quark confinement and charmonium. (WL) [de

  7. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Biological studies were preformed in vitro against four bacterial strains which have shown better activities and potential as antibacterial agents. Author Affiliations. Rosenani A Haque1 M A Salam1. The School of Chemical Sciences, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia. Dates. Manuscript received: 15 ...

  8. Weak interactions physics: from its birth to the eletroweak model

    International Nuclear Information System (INIS)

    Lopes, J.L.

    1987-01-01

    A review of the evolution of weak interaction physics from its beginning (Fermi-Majorana-Perrin) to the eletroweak model (Glashow-Weinberg-Salam). Contributions from Brazilian physicists are specially mentioned as well as the first prediction of electroweak-unification, of the neutral intermediate vector Z 0 and the first approximate value of the mass of the W-bosons. (Author) [pt

  9. Palestinian Security Sector Reform : the View of the Public | IDRC ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    In its August 2009 platform, Building Palestinian State Institutions, the government of Salam Fayyad has committed itself to modernizing the Palestinian security sector based on the rule of law and oversight by the legislature and judicial authorities. However, the process is currently being conducted without parliamentary ...

  10. Gravitationally coupled electroweak monopole

    Energy Technology Data Exchange (ETDEWEB)

    Cho, Y.M., E-mail: ymcho7@konkuk.ac.kr [Administration Building 310-4, Konkuk University, Seoul 143-701 (Korea, Republic of); School of Physics and Astronomy, Seoul National University, Seoul 151-742 (Korea, Republic of); Kimm, Kyoungtae [Faculty of Liberal Education, Seoul National University, Seoul 151-747 (Korea, Republic of); Yoon, J.H. [Department of Physics, College of Natural Sciences, Konkuk University, Seoul 143-701 (Korea, Republic of)

    2016-10-10

    We present a family of gravitationally coupled electroweak monopole solutions in Einstein–Weinberg–Salam theory. Our result confirms the existence of globally regular gravitating electroweak monopole which changes to the magnetically charged black hole as the Higgs vacuum value approaches to the Planck scale. Moreover, our solutions could provide a more accurate description of the monopole stars and magnetically charged black holes.

  11. q -Engel Series Expansions and Slaters Identities | Andrews ...

    African Journals Online (AJOL)

    We describe the q-Engel series expansion for Laurent series discovered by. John Knopfmacher and use this algorithm to shed new light on partition identities related to two entries from Slater's list. In our study Al-Salam/Ismail and. Santos polynomials play a crucial role. Mathematics Subject Classification (1991): Primary: ...

  12. R-ES-ONANCE--IAU-9U-st-1-99-7

    Indian Academy of Sciences (India)

    some additional interactions not envisaged in the original theory of Glashow, Weinberg and Salam. The neutrinos if massive could have played an important role in the ... This detector started its operation in 1996 and has given its first results recently. All these neutrino detectors are required to be very large since neutrinos ...

  13. The World According to Usama Bin Laden

    Science.gov (United States)

    2001-01-01

    little-known manifesto, Al- Faridah Al-Gha’ibah (the neglected duty), by Muhammad Abdel Salam Al-Farag. The work of this Egyptian Islamic radical, who was...mother, a progressive woman who was his father’s fourth wife. Bin Laden attended King Abdul Aziz University in Jeddah and in 1979 earned a degree—in

  14. African Journal of Biotechnology - Vol 11, No 52 (2012)

    African Journals Online (AJOL)

    In vitro cytotoxicity and induction of apoptosis by multiwalled carbon nanotubes in human peripheral lymphocytes: Correlation with physicochemical properties · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Mohamed F Elshal, Mohamed Abdel Salam, Jalaluddin A ...

  15. Issues in neutral currents

    International Nuclear Information System (INIS)

    Sehgal, L.M.

    1980-01-01

    The experimental results on low energy confirming the structure of the effective Lagrangian of the weak neutral current processes as predicted by the Salam-Weinberg model are reviewed. Some possible modifications of the effective Lagrangian and the feasibility of their experimental verification are also considered. (P.L.)

  16. The evolution and persistence of dumbbells

    NARCIS (Netherlands)

    Urrestilla, J; Achucarro, A; Borrill, J; Liddle, AR

    We use large-scale numerical simulations to study the formation and evolution of non-topological defects in a generalized electroweak phase transition described by the Glashow-Salam-Weinberg model without fermions. Such defects include dumbbells, comprising a pair of monopoles joined by a segment of

  17. Introduction to unification of electromagnetic and weak interactions

    International Nuclear Information System (INIS)

    Martin, F.

    1980-01-01

    After reviewing the present status of weak interaction phenomenology we discuss the basic principles of gauge theories. Then we show how Higgs mechanism can give massive quanta of interaction. The so-called 'Weinberg-Salam' model, which unifies electromagnetic and weak interactions, is described. We conclude with a few words on unification with strong interactions and gravity [fr

  18. The charm of physics: the search for the secrets of matter

    International Nuclear Information System (INIS)

    Glashow, S.

    1999-01-01

    The author won the Nobel price of physics in 1979 with S. Weinburg and A. Salam for their theory on the unification of weak and electromagnetic forces. This book reports on the research work of the author, his main discoveries and the aim of his work on matter and universe structure. (J.S.)

  19. Conceptual foundations of the unified theory of weak and electromagnetic interactions

    International Nuclear Information System (INIS)

    Weinberg, S.

    1981-01-01

    A translation is presented of the 1979 Nobel prize acceptance address. The lecture describes the history leading to the formation of the unified theory of weak and electromagnetic interactions (the Weinberg-Salam Gauge Model). The fundamentals of the unified theory are described. (Z.J.)

  20. Supersymmetry and SU(2) /SUB L/ X U(1) /SUB L+R/

    International Nuclear Information System (INIS)

    Zichichi, A.

    1980-01-01

    An overview of what has been learned in the areas of supersymmetry and the unified theory of weak and electromagnetic interaction, is outlined including a list of the five quantities needed to describe weak and electromagnetic processes in the framework of a theory that is renormalized. The three features of the Glashow-Salam-Weinberg theory are reviewed

  1. Methylenetetrahydrofolate reductase (MTHFR) C677T gene ...

    Indian Academy of Sciences (India)

    Keywords. homocysteine; MTHFR; Mendelian population; gene–environment interaction. Author Affiliations. Huidrom Suraj Singh1 2 Salam Kabita Devi1 3 Kallur Nava Saraswathy1. Molecular Anthropology Laboratory, Department of Anthropology, University of Delhi, New Delhi 110 007, India; Department of Anthropology ...

  2. Author Details

    African Journals Online (AJOL)

    indicateurs de la pollution atmosphérique par le plomb, cadmium et zinc de la région de Rabat-Sale-Zemmour-Zaêr (Maroc) Abstract PDF · Vol 9, No 3 (2013) - Articles Étude de la performance de la STEP du centre emplisseur de la société Salam ...

  3. Supersymmetric unification in the light of neutrino mass

    Indian Academy of Sciences (India)

    Supersymmetry; -parity; Pati–Salam; left–right. ... recently developed minimal left right supersymmetric models with a renormalizable see-saw mechanism for neutrino mass to left right symmetric SUSY GUTS: in ... Author Affiliations. Charanjit S Aulakh1. Department of Physics, Panjab University, Chandigarh 160 019, India ...

  4. Gauge theories of the weak interactions

    International Nuclear Information System (INIS)

    Quinn, H.

    1978-08-01

    Two lectures are presented on the Weinberg--Salam--Glashow--Iliopoulos--Maiani gauge theory for weak interactions. An attempt is made to give some impressions of the generality of this model, how it was developed, variations found in the literature, and the status of the standard model. 21 references

  5. RE-SONANCE--IM

    Indian Academy of Sciences (India)

    of the familiar notion of gauge invariance of electromagnetism. Indeed Salam and Weinberg succeeded in combining electromagnetism and weak interactions to construct the electroweak gauge theory. These theories have in addition to photons, that mediate the electromagnetic forces, massive analogues. W:i: and Z that ...

  6. Author Details

    African Journals Online (AJOL)

    Abdel Salam, Sanaa M. Vol 9, No 1 (2011) - Articles Assessment of plasma and urinary transforming growth factor beta 1 in children with lupus nephritis. Abstract PDF. ISSN: 2134-8934. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  7. Ultrastructure comparison of the sensory morphology of the first- and ...

    African Journals Online (AJOL)

    Ultrastructure comparison of the sensory morphology of the first- and third-instar larvae of Parasarcophaga argyrostoma (Robineau-Desvoidy) (Diptera: Sarcophagidae). Azza Awad, Salah Abdel-Salam, Refat Abou El-Ela, Abdel-Aal Abdel-Aal, Doaa Mohamed ...

  8. Egyptian Journal of Biology - Vol 5 (2003)

    African Journals Online (AJOL)

    Ultrastructure comparison of the sensory morphology of the first- and third-instar larvae of Parasarcophaga argyrostoma (Robineau-Desvoidy) (Diptera: Sarcophagidae). Azza Awad, Salah Abdel-Salam, Refat Abou El-Ela, Abdel-Aal Abdel-Aal, Doaa Mohamed ...

  9. RE-SONA--NCEIJanua-rY

    Indian Academy of Sciences (India)

    Starting from such humble beginnings, and fulfilling his father's hopes and dreams, Salam went on to college in Jhang, and then obtained his M.A in mathematics at Punjab University in Lahore, performing brilliantly at every stage. In 1946, just before partition, he won a scholarship to study at Cambridge in. England.

  10. Unified gauge theories with spontaneous symmetry breaking

    International Nuclear Information System (INIS)

    MacDowell, S.W.

    1975-01-01

    Unified gauge theories with spontaneous symmetry breaking are studied with a view to renormalize quantum field theory. Georgi-Glashow and Weinberg-Salam models to unify weak and electromagnetic interactions are discussed in detail. Gauge theories of strong interactions are also considered [pt

  11. Browse Title Index

    African Journals Online (AJOL)

    Items 1 - 50 of 223 ... ... No 4 (2012), A rare association between dextrogastria, duodenal web, and intestinal malrotation in newborns, Abstract PDF. O Abdulwahed, D Al-Bardiny, A Salam. Vol 13, No 1 (2017), A rare case of juvenile-onset Behçet's disease: Fournier's gangrene followed by intestinal involvement, Abstract PDF.

  12. Browse Title Index

    African Journals Online (AJOL)

    Items 3551 - 3600 of 11090 ... Vol 15, No 24 (2016), Effect of different microencapsulation materials on stability of Lactobacillus plantarum DSM 20174, Abstract PDF. Lulwah Y. Al-Furaih, Ibtisam M. Ababutain, Azzat B. Abd-El-Khalek, Ahmed M. Abdel-Salam. Vol 11, No 37 (2012), Effect of different oestrus synchronizations ...

  13. Dielectric and photo-dielectric properties of TlGaSeS crystals

    Indian Academy of Sciences (India)

    Administrator

    A F QASRAWIa,b,*, SAMAH F ABU-ZAIDa, SALAM A GHANAMEHa and N M GASANLYc. aDepartment of Physics, Arab-American University, Jenin, West Bank, Palestine .... dance to Maxwell–Wagner model (Wagner 1973), a di- electric medium is assumed to be composed of conducting crystallites (TlGaSeS layers) ...

  14. EDITORIAL: The Fifth International Workshop and Summer School on Plasma Physics

    Science.gov (United States)

    2006-04-01

    we had an unforgettable experience producing paper sheets ourselves in an old but still operational paper mill in the green enchanting spa of Duszniki Zdrój. A short intensive course in pottery handcraft was also offered to us in the Skansen. Hiking in the rocky labyrinth of Szczeliniec (please try to pronounce this name describing a magnificent cliffed hill with creviced rocks) was also a great adventure. This was followed by a ride on the serpentine Road of a Hundred Turns. And there was another event strongly supported by the local authorities. Two special tutorials on energy research and fusion for young scholars and the general public attracted nearly 200 people. The School was financially supported by the International Centre for Dense Magnetised Plasmas at IPPLM, European Commission, International Atomic Energy Agency, Vienna (Austria), the Abdus Salam International Centre for Theoretical Physics, Trieste (Italy) and the US Department of Energy. We would like to thank cordially our sponsors. Their financial support made it possible for a number of students and teachers to come to Kudowa Zdrój. We are very grateful to Dr Adam Ziembinski, the director of the spa in Kudowa, and his staff for the immense hospitality during our stay. We wish to thank Mr Czeslaw Krecichwost, the mayor of Kudowa Zdrój, for his strong support and interest in the School and help in organizing the lectures for scholars and residents of the region. And our most cordial thanks and gratitude go to Mr Ryszard Panfil for his great kindness, inexhaustible energy and organizational efficiency that helped all of us to enjoy the meeting. We thank all the participants for their contributions and we thank the reviewers of all submitted papers. Thank you for your hard work and co-operation. We are looking forward to the next school and all hope to meet again in Kudowa. Marek Rubel, Royal Institute of Technology, Sweden Irena Ivanova-Stanik, Institute of Plasma Physics and Laser Microfusion

  15. The insulin-like growth factor axis and collagen turnover in asthmatic children treated with inhaled budesonide

    DEFF Research Database (Denmark)

    Wolthers, O D; Juul, A; Hansen, M

    1995-01-01

    Serum concentrations of growth hormone-dependent insulin-like growth factor I (IGF-I) and insulin-like growth factor binding protein-3 (IGFBP-3), the carboxy terminal propeptide of type I procollagen (PICP), the carboxy terminal pyridinoline cross-linked telopeptide of type I collagen (ICTP...... the calculations (p type III collagen. A similar trend was observed in ICTP levels when the 400 micrograms period was excluded from the calculations (p = 0.05; z = -1.9). No other statistically significant variations were seen.......) and the amino terminal propeptide of type III procollagen (PIIINP) were studied in 14 prepubertal children with asthma (mean age 9.7 years) during treatment with inhaled budesonide. The study design was a randomized, crossover trial with two double-blind treatment periods (200 and 800 micrograms) and one open...

  16. An Investigation of the Sensitivity of East African Climate Variability to Urbanization

    Science.gov (United States)

    Gudoshava, Masilin

    The aim of this research was to investigate the impact of urbanization on the climate of East Africa and the subsequent consequences on the energy and agricultural sectors. This was achieved by accomplishing the following objectives (i) Comprehensive customization and evaluation of the performance of the International Center of Theoretical Physics (ICTP) Regional climate model (ii) Investigation of the ability of the ICTP Regional climate model to reproduce the modes of climate variability from observational data. (iii) Investigate the impact of urbanization on the precipitation of East Africa (iv) Investigation of the dominant process between, moisture supply, thermal convergence and frictional convergence, and (v) Impact on agriculture and energy sector. (Abstract shortened by ProQuest.).

  17. Summary report of IAEA workshop on atomic and molecular data for fusion energy research

    International Nuclear Information System (INIS)

    Clark, R.E.H.

    2007-02-01

    A workshop on Atomic and Molecular (A+M) Data for Fusion Energy Research was held at the International Centre for Theoretical Physics (ICTP) in Trieste, Italy, from 28 August until 8 September 2006. The workshop was attended by fourteen students and three ICTP associates representing eleven Member States. A total of eight lecturers, including six external to the Agency, made presentations to the workshop. All lecturers provided advance copies of the lecture materials, and provided written assignments for the students to provide practical examples of applications of data issues to actual problems related to fusion energy research. All materials were collected on CDs, which were distributed to the students at the conclusion of the workshop. During the course of the workshop, the students were given the opportunity to describe their background and research interests. The workshop did arouse interest in A+M processes related to fusion, and was viewed as successful by both the students and lecturers. (author)

  18. Spring School on Superstring Theory and Related Topics

    CERN Document Server

    2017-01-01

    ICTP's annual Spring School on Superstring Theory and Related Topics provides pedagogical treatment of these subjects through lectures by some of the world's top string theorists. The activity is intended for theoretical physicists or mathematicians with knowledge of quantum field theory, general relativity and string theory. It is organized in collaboration with the Asia Pacific Center for Theoretical Physics (APCTP) and the Italian Institute for Nuclear Physics (INFN).

  19. Knemometry, urine cortisol excretion, and measures of the insulin-like growth factor axis and collagen turnover in children treated with inhaled glucocorticosteroids

    DEFF Research Database (Denmark)

    Wolthers, O D; Hansen, M; Juul, A

    1997-01-01

    (F = 8.31; p = 0.008), and beclomethasone, 400 micrograms (F = 7.53; p = 0.01). Both low (F = 6.82; p = 0.02) and high (F = 23.35; p = 0.0001) doses of beclomethasone were associated with reduced concentrations of ICTP, the high dose being the most suppressive (F = 4.42; p = 0.05). Beclomethasone 400...

  20. Candidate salivary biomarkers associated with alveolar bone loss: cross-sectional and in vitro studies

    OpenAIRE

    Ng, Patricia Yen Bee; Donley, Maureen; Hausmann, Ernest; Hutson, Alan D.; Rossomando, Edward F.; Scannapieco, Frank A.

    2007-01-01

    This cross-sectional study evaluated the association between radiographic evidence of alveolar bone loss and the concentration of host-derived bone resorptive factors (interleukin-1 beta, tumor necrosis factor-alpha, interleukin-6, prostaglandin-E2), and markers of bone turnover [pyridinoline cross-linked carboxyterminal telopeptide of type I collagen (ICTP), osteocalcin, osteonectin] in stimulated human whole saliva collected from 110 untreated dental patients. Alveolar bone loss scores for ...

  1. Proceedings of the IRI task force activity 1995

    International Nuclear Information System (INIS)

    Radicella, S.M.

    1996-05-01

    The report contains the programme, conclusions and the write up of 11 presentations delivered during the International Reference Ionosphere (IRI) Task Force Activity 1995 that took place at the ICTP Trieste between 13-17 November 1995. The presentations included have been grouped in three chapters: Status report and data availability (2 presentations), Electron density profile shape below Nmax (5 presentations) and Intermediate regions (F1) electron density profile (4 presentations). Each presentation was indexed separately. Refs, figs, tabs

  2. Evaluation of gingival crevicular fluid and peri-implant sulcus fluid levels of periostin: A preliminary report.

    Science.gov (United States)

    Akman, Abdullah C; Buyukozdemir Askin, Sezen; Guncu, Guliz N; Nohutcu, Rahime M

    2018-02-01

    Periostin is a protein present in alveolar bone and periodontal ligament whose function is related to response to external forces. The aims of this study are to detect levels of periostin in peri-implant sulcular fluid (PISF) and gingival crevicular fluid (GCF) and to evaluate the relationship between periostin, pyridinoline cross-linked carboxyterminal telopeptide of Type I collagen (ICTP), and C-terminal cross-linked telopeptide of Type I collagen (CTX) levels and clinical inflammatory symptoms and duration of functional loading. The study population comprised nine women and four men with mean age 43.23 ± 12.48. Twenty "bone-level designed" dental implants (DIs) placed in molar or premolar sites, without any signs of peri-implant bone loss and with a restoration in function for at least 12 months, were included in the study with 20 contralateral natural teeth (NT) as controls. Clinical parameters and restoration dates of the implants were recorded. PISF, GCF, ICTP, CTX, and periostin levels were evaluated using enzyme-linked immunosorbent assay. ICTP, CTX, and periostin levels were similar between DI and NT groups. There were no statistically significant differences between PISF and GCF values. When implants were grouped as healthy (gingival index [GI] = 0) and inflamed (GI ≥0), ICTP levels and PISF volume were lower in healthy implants compared with the inflamed group. Both periostin and CTX levels were negatively correlated with functioning time, suggesting less bone remodeling around DIs at later stages of functioning. Findings of this study suggest collagen breakdown products may be used as markers to evaluate peri-implant metabolism. © 2017 American Academy of Periodontology.

  3. International Centre for Theoretical Physics. Scientific Activities in 1983

    International Nuclear Information System (INIS)

    1984-08-01

    The main activities and results of the ICTP during 1983 are reported, according to the following programme components: Physics and energy (Plasma physics; Non-conventional energy; Nuclear physics); Fundamental physics (Elementary particles and fundamental theory); Physics of the living state (Medical physics; Applications of physics to medicine and biology); Physics and technology (Condensed matter physics and related; Atomic, molecular and laser physics; Physics of communications); Mathematics (Applicable mathematics); Physics of the environment and of natural resources (Soil physics; Geophysics); other fields

  4. International Centre for Theoretical Physics: scientific activities in 1984

    International Nuclear Information System (INIS)

    1985-09-01

    A review of the scientific activities of the Centre, including workshops, research, and training-for-research is presented. The scientific program consists of seven main fields, Physics and Energy, Fundamental Physics, Physics and Technology, Physics of the Living State, Physics of the Environment, Physics and Development, and Mathematics. In addition to a brief description of each workshop, symposium, college, and meeting, tables summarizing the participation at ICTP activities are given. A list of preprints and internal reports issued in 1984 is included

  5. Index Theory and the Baum-Connes conjecture

    OpenAIRE

    Schick, Thomas

    2016-01-01

    These notes are based on lectures on index theory, topology, and operator algebras at the "School on High Dimensional Manifold Theory" at the ICTP in Trieste, and at the Seminari di Geometria 2002 in Bologna. We describe how techniques coming from the theory of operator algebras, in particular $C^*$-algebras, can be used to study manifolds. Operator algebras are extensively studied in their own right. We will focus on the basic definitions and properties, and on their relevance to the geometr...

  6. Spatial distribution of Ti vapor admixture ratio in Ar induction thermal plasma torch during Ti feedstock injection

    Science.gov (United States)

    Kodama, Naoto; Tanaka, Yasunori; Ishisaka, Yosuke; Shimizu, Kotaro; Uesugi, Yoshihiko; Ishijima, Tatsuo; Watanabe, Shu; Sueyasu, Shiori; Nakamura, Keitaro

    2018-03-01

    The spatial distribution of the Ti vapor admixture ratio (X Ti) was determined together with Ti excitation temperature (T\\text{ex}\\text{Ti}) from two-dimensional (2D) optical emission spectroscopy (OES) during Ti feedstock injection into an Ar induction thermal plasma (ICTP) torch for Ti nanoparticle synthesis. The X Ti is one important parameter affecting ICTP properties such as its electrical conductivity. The value of X Ti was estimated from the radiation intensity ratio of the Ar atomic line to the Ti atomic line, and T\\text{ex}\\text{Ti} obtained from 2D OES observation. Furthermore the electron density (n e) was also determined from the estimated results of T\\text{ex}\\text{Ti} and X Ti through the equilibrium composition. These 2D OES results revealed T\\text{ex}\\text{Ti} as 2500–4000 K at around the central axis of the ICTP torch, although it was higher than 4000 K in the off-axis region. In the off-axis region, X Ti and n e were much higher than in the on-axis region.

  7. [The effect of sodium fluoride on selected biochemical markers of bone turnover in ovariectomized rats].

    Science.gov (United States)

    Bohatyrewicz, A

    1998-10-01

    The aim of the study was to investigate the effect of fluoride on selected biochemical markers of bone remodelling in young growing rats and after ovariectomy performed on 12-weeks-old female Wistar rats. Seventy 6-weeks-old female Wistar rats were randomized into seven groups. The first baseline control group was sacrificed before the beginning of the experiment. Two groups served as controls receiving distilled water and the other groups received fluoridated water at different doses (two received 8 and two received 60 mgF-/l). 30 rats (ten from each group) were sacrificed after 6 weeks. Serum was then collected for measurement of fluoride concentration, serum total alkaline phosphatase activity (ALP) and concentration of telopeptide of rat type I collagen (ICTP). Last three groups (ten rats each) were ovariectomized and received than only distilled water to drink. After following six weeks all rats were sacrificed. After six weeks of experiment the group receiving 8 mg F-/l showed the lowest ICTP values and the smallest decrease of serum ALP activity compared to the baseline control group. The rats with higher plasma fluoride concentrations after ovariectomy demonstrated lower ICTP concentrations and higher ALP activity than animals with lower fluoride concentrations.

  8. Risk management for sulfur dioxide abatement under multiple uncertainties

    Science.gov (United States)

    Dai, C.; Sun, W.; Tan, Q.; Liu, Y.; Lu, W. T.; Guo, H. C.

    2016-03-01

    In this study, interval-parameter programming, two-stage stochastic programming (TSP), and conditional value-at-risk (CVaR) were incorporated into a general optimization framework, leading to an interval-parameter CVaR-based two-stage programming (ICTP) method. The ICTP method had several advantages: (i) its objective function simultaneously took expected cost and risk cost into consideration, and also used discrete random variables and discrete intervals to reflect uncertain properties; (ii) it quantitatively evaluated the right tail of distributions of random variables which could better calculate the risk of violated environmental standards; (iii) it was useful for helping decision makers to analyze the trade-offs between cost and risk; and (iv) it was effective to penalize the second-stage costs, as well as to capture the notion of risk in stochastic programming. The developed model was applied to sulfur dioxide abatement in an air quality management system. The results indicated that the ICTP method could be used for generating a series of air quality management schemes under different risk-aversion levels, for identifying desired air quality management strategies for decision makers, and for considering a proper balance between system economy and environmental quality.

  9. Effect of a novel quaternary ammonium silane on dentin protease activities.

    Science.gov (United States)

    Umer, D; Yiu, C K Y; Burrow, M F; Niu, L-N; Tay, F R

    2017-03-01

    Demineralized dentin collagen release C-terminal cross-linked telopeptide (ICTP) and C-terminal peptide (CTX) during degradation. The present study evaluated the effects of dentin pre-treatment with K21, a quaternary ammonium silane (QAS), on matrix metalloproteinase (MMP) and cathepsin K-mediated collagen degradation. Dentin beams were demineralized with 10% H 3 PO 4 for 24h. After baseline dry mass measurements, the beams were divided into 5 groups (N=10) according to protease inhibitors. The beams were pre-treated for 2min with 2% chlorhexidine (CHX), 2%, 5% or 10% QAS; no pre-treatment was performed for the control group. The beams were subsequently incubated in calcium- and zinc-containing medium for 3, 7 or 14days, after which changes in dry mass were measured and incubation media were examined for ICTP and CTX release. The MMP-2 and cathepsin K activities in QAS-treated dentin powder were also quantified using ELISA. The two factors (disinfectants and time) had a significant effect on dry mass loss, ICTP and CTX release (psilane increases the resistance of dentin collagen to degradation by inhibiting endogenous matrix metalloproteinases and cysteine cathepsins. The quaternary ammonium silane cavity disinfectant is promising for use as a protease inhibitor to improve durability of resin-dentin bonds. Copyright © 2017 Elsevier Ltd. All rights reserved.

  10. Unified gauge theory for the weak and electromagnetic interactions of the τ heavy lepton

    International Nuclear Information System (INIS)

    Vasconcelos Filho, A.V. de.

    1979-01-01

    The Weinberg-Salam model which unifies the weak and electromagnetic interactions under a same gauge formalism and the properties of the new τ+ - heavy lepton are discussed. Yang-Mills theory, Goldstone bosons, Higgs mechanism, weak and electromagnetic currents and the SU(2)xU(1) group, which generates these currents are presented. The Weinberg-Salam model and their extensions with four (GIM model) and six quarks are described. A τ -lepton study is presented where their known properties are summarized and a way to determine the spin of this lepton is proposed. The calculation of the tau decays are done in detail, because is through these decays that it is possible to reach the true spin of the heavy lepton. (L.C.) [pt

  11. The self-mass of vector bosons in gravity-modified quantum field theories

    International Nuclear Information System (INIS)

    Poelt, P.

    1985-01-01

    The self-mass of the W-boson is calculated using a gravitational modified Weinberg-Salam theory with an anomalous magnetic moment assumed to be variable. The self-mass is shown to be finite with Gsub(N)sup(-1/2) (Gsub(N) Newton's gravitational constant) as the cutoff parameter. But only certain values of the anomalous magnetic moment yield a correct order of magnitude. Lowest order of perturbation theory gives complex solutions for these magnetic moments. Nevertheless, additional terms of higher perturbation theory will modify the equation for the magnetic moment and possibly lead to the definite magnetic moment of the W-boson of the non-modified Weinberg-Salam theory. (Auth.)

  12. New ideas about unified field theory

    International Nuclear Information System (INIS)

    Gleiser, M.

    1986-01-01

    An outline of the physical concepts evolution is given from the ancient philosophers to the present time. With qualitative explanations about the meaning of the theories that is the milestones of these concepts evolution, it mentions the ideas which lead the studies to the conception of a unified field theory. Chronologically, it has brief information about the ideas of Laplace (mechanical determinism), Maxwell (the field concept), Einsten (the space-time structure), Heisenberg and Schroedinger (the quantum mechanics), Dirac (the relativistic quantum and the antiparticles), Gell-Mann (the quarks), Weinberg-Salam (Weak interactions and eletromagnetic unification), H. Georgi and S. Glashon (strong interactions plus Weinberg-Salam), Kaluza-Klein (a fifth space-time coordinate), and Zumino-Weiss (supersymmetry and supergravity). (G.D.F.) [pt

  13. The derivative expansion of the fermion number current

    International Nuclear Information System (INIS)

    D'Hoker, E.; Goldstone, J.

    1985-01-01

    The fermion number current is evaluated to leading order in the derivative expansion for chiral fermions in the background of arbitrary Higgs and chiral gauge fields. This current is given by the gauged topological current plus a total divergence term. The total divergence term is absent in Weinberg-Salam theory with one scalar Higgs doublet, even for an arbitrary mass matrix, but appears when several Higgs doublets are present. (orig.)

  14. Cosmological implication of massive neutrinos in a horizontal model context

    International Nuclear Information System (INIS)

    Goldman, C.

    1985-04-01

    An extended version of the Glashow-Weinberg-Salam model for the eletroweak interactions is studied in detail. It has an extra global horizontal symmetry, which allows the appearance of neutrino mass terms. The constraints imposed by the standard cosmological model were used to determine the allowed range of variations of the free parameters of this model. As applications, the solar neutrinos problem and the formation of large scale structures in the universe is studied. (Author) [pt

  15. "That I may know the inmost force that binds the world and guides its course"

    Science.gov (United States)

    Dehmelt, Hans

    1995-01-01

    The talk touches upon the following subjects: Goethe's Faust, the magic of Democritus' "ατoμoν", magnetism of the neutron, a neutral particle, the crucial problem of physics, crucial experiments, seeing an atom with my eyes, bringing an electron to rest, measuring electron magnetism, proton magnetism, electron radius from its magnetism, speculating on Salam's sub-sub-...-quarks and the cosmon, the simplest thing that ever was.

  16. Experimental search for parity nonconservation in atomic thallium

    International Nuclear Information System (INIS)

    Commins, E.D.

    1978-01-01

    In the lecture an experimental search for parity nonconservation in the 6 2 P/sub 1/2/--7 2 P/sub 1/2/ transition in atomic thallium is described. The reason for the choice of this particular transition, a description of the method, the results to data, and a brief description of the future plans are given. The very preliminary results suggest that the Weinberg--Salam model correctly describes parity nonconservation effects in atoms. 5 references

  17. Research Article Special Issue

    African Journals Online (AJOL)

    pc

    2017-11-10

    Nov 10, 2017 ... mail: gootheah@salam.uitm.edu.my. /10.4314/jfas.v9i6s.19 al and Applied Sciences http://www.jfas.info. NonCommercial 4.0. CANCER CELLS,. P. M. Yusof1 ... lucidum have shown to assert cytotoxic effects in various cancer cell lines, including breast, .... British Journal of Nutrition, 2004, 91(2):263-269.

  18. Platonic sphalerons

    International Nuclear Information System (INIS)

    Kleihaus, Burkhard; Kunz, Jutta; Myklevoll, Kari

    2004-01-01

    We construct sphaleron solutions in Weinberg-Salam theory, which possess only discrete symmetries. Related to rational maps of degree N, these sphalerons carry baryon number Q B =N/2. The energy density of these sphalerons reflects their discrete symmetries. We present an N=3 sphaleron with tetrahedral energy density, an N=4 sphaleron with cubic energy density, and an N=5 sphaleron with octahedral energy density

  19. A three-site gauge model for flavor hierarchies and flavor anomalies

    Science.gov (United States)

    Bordone, Marzia; Cornella, Claudia; Fuentes-Martín, Javier; Isidori, Gino

    2018-04-01

    We present a three-site Pati-Salam gauge model able to explain the Standard Model flavor hierarchies while, at the same time, accommodating the recent experimental hints of lepton-flavor non-universality in B decays. The model is consistent with low- and high-energy bounds, and predicts a rich spectrum of new states at the TeV scale that could be probed in the near future by the high-pT experiments at the LHC.

  20. Author Details

    African Journals Online (AJOL)

    Utilisation des lichens comme bio-indicateurs de la pollution atmosphérique par le plomb, cadmium et zinc de la région de Rabat-Sale-Zemmour-Zaêr (Maroc) Abstract PDF · Vol 9, No 3 (2013) - Articles Étude de la performance de la STEP du centre emplisseur de la société Salam Gaz – Skhirat, Maroc Abstract PDF.

  1. Maturity acceleration of Italian dried sausage by Staphylococcus carnosus - Relationship between maturity and flavor compounds

    DEFF Research Database (Denmark)

    Stahnke, Louise Heller; Holck, A.; Jensen, Anni

    2002-01-01

    The mature flavor of Salame Milano, an Italian dried sausage, was increased in two ways: by increasing maturation time or with a strain of Staphylococcus carnosus. The sensory and volatile profiles of the sausages were determined and the data analyzed by analysis of variance and chemometrics. Sau......, and valine, or from microbial beta-oxidation of fatty acids. Also, sulfur compounds arising from added garlic correlated positively with mature flavor....

  2. Phenomenology of the Higgs boson

    International Nuclear Information System (INIS)

    Ali, A.

    1981-09-01

    The phenomenology of the standard Weinberg-Salam Higgs boson is reviewed with particular emphasis on production mechanisms in high energy e + e - and hadron-hadron collisions. The production processes relevant for the ISABELLE and TEVATRON energies are discussed and their backgrounds estimated. It is argued that the toponium production and radiative decay provides the most hopeful reaction to detect a Higgs in both the e + e - and the hadron-hadron machines. (orig.)

  3. Point de vue de la population sur la réforme du secteur de la ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Dans le cadre de son plan visant à bâtir les institutions de l'État palestinien, le gouvernement de Salam Fayyad s'était engagé en août 2009 à moderniser le secteur de la sécurité palestinien en se fondant sur l'État de droit, sous la surveillance des autorités législatives et judiciaires. Or, ce processus est actuellement mené ...

  4. Strong interaction phenomenology

    International Nuclear Information System (INIS)

    Giffon, M.

    1989-01-01

    A brief review of high energy hadronic data (Part I)is followed by an introduction to the standard (Weinberg Salam Glashow) model of electroweak interactions and its extension to the hadrons (Part II). Rudiments of QCD and of the parton model area given in Part III together with a quick review of the spectroscopy of heavy flavours whereas Part IV is devoted to the introduction to deep inelastic scattering and to the so-called EMC effects. (author)

  5. Electroweak interactions: an introduction to the physics of quarks and leptons

    International Nuclear Information System (INIS)

    Renton, Peter

    1990-01-01

    The Glashow-Salam-Weinberg model, that unifies the weak and electromagnetic forces of nature and gives a detailed description of the interactions between quarks and leptons is considered. The various experimental tests, either planned or that have been made, are described in detail and the interaction of quarks by the strong force and the theory of quantum chromodynamics are also discussed and theories proposing further unification of the forces of nature are outlined. (author)

  6. Al Sahawa - The Awakening. Volume 4: Al Anbar Province, Area of Operations Topeka, Ramadi

    Science.gov (United States)

    2016-08-01

    tions. Three essential team members were Mr. Adel Abouhana, Cultural Advisor to the TF commander; Lieutenant Colonel Salam al-Awani, the local police...he also dealt a lot with Sattar as well. But it was really bringing all guns to bear on this opportunity and really bringing that re- lationship to...members of our tribes. That sounds like a throwaway line in western society, but it is deeply meaningful in tribal society and tribal culture , and they

  7. Browse Author Index

    African Journals Online (AJOL)

    Items 1 - 50 of 517 ... Abdel-Latif, Mahmoud M · Abdel-Moneim, Adel · Abdel-Nabi, IM · Abdel-Nabi, Ishmail M · Abdel-Nabi, Ismail M · Abdel-Nabi, Ismail M · Abdel-Nabi, Ismail M · Abdel-Nabi, Ismail M. Abdel-Rahman, Mohamed · Abdel-Salam, Salah · Abdelmoniem, Hossam El-Din · Abdulla, Hesham · Abo Ghalia, Hoda H

  8. Synthesis of Chromone, Quinolone, and Benzoxazinone Sulfonamide Nucleosides as Conformationally Constrained Inhibitors of Adenylating Enzymes Required for Siderophore Biosynthesis

    OpenAIRE

    Engelhart, Curtis A.; Aldrich, Courtney C.

    2013-01-01

    MbtA catalyzes the first committed step of mycobactin biosynthesis in Mycobacterium tuberculosis (Mtb) and is responsible for the incorporation of salicylic acid into the mycobactin siderophores. 5′-O-[N-(Salicyl)sulfamoyl]adenosine (Sal-AMS) is an extremely potent nucleoside inhibitor of MbtA that possesses excellent activity against whole-cell Mtb, but suffers from poor bioavailability. In an effort to improve the bioavailability, we have designed four conformationally constrained analogues...

  9. A geometrodynamical approach to the MIT confinement scheme

    International Nuclear Information System (INIS)

    Martellini, M.; Sodano, P.

    1978-01-01

    Starting from the strong gravity theory of Salam-Isham-Strathdee the M.I.T. bag is identified as a certain region of the global extension of a De Sitter-Schwarzschild solution. As a result the M.I.T. bag radius, a geometrical interpretation of the binding Lagrangian term and a rate of decaying of the ''bag manifold'' into the flat space (which, however, does not lead to observable quark wave functions) are obtained. (author)

  10. Maturity acceleration of Italian dried sausage by Staphylococcus carnosus - Relationship between maturity and flavor compounds

    DEFF Research Database (Denmark)

    Stahnke, Louise Heller; Holck, A.; Jensen, Anni

    2002-01-01

    The mature flavor of Salame Milano, an Italian dried sausage, was increased in two ways: by increasing maturation time or with a strain of Staphylococcus carnosus. The sensory and volatile profiles of the sausages were determined and the data analyzed by analysis of variance and chemometrics......, and valine, or from microbial beta-oxidation of fatty acids. Also, sulfur compounds arising from added garlic correlated positively with mature flavor....

  11. What can we learn from high precision measurements of neutrino ...

    Indian Academy of Sciences (India)

    To see how a µ ↔ τ symmetry of the neutrino mass matrix appears in the mixing matrix, let us consider the case of ... whether one can have mass matrices invariant under νµ ↔ ντ symmetry while giving ∆m2. ®. = 0 and θ12 ..... symmetry that unifies quarks and leptons, which includes the SU(4)-color group of Pati and Salam.

  12. Lepton-pair production in a nucleon field

    International Nuclear Information System (INIS)

    Allam, S.H.; El-Kheshin, M.; El-Shawarbi, A.

    1980-01-01

    The total cross-sections for the photon-nucleon reactions γ + p → p + ν + antiν and γ + n → n + ν + antiν are calculated according to Weinberg-Salam theory. The effect of the form factors is taken in the electromagnetic vertex. The dependence of the total cross-sections on the energy of the incident photon is explicitly shown. (author)

  13. Lepton flavour violation, Yukawa unification and neutrino masses in supersymmetric unified models

    International Nuclear Information System (INIS)

    Oliveira, J.M.D.S.B.

    2000-12-01

    We explore some phenomenological consequences of models based on supersymmetric extensions of the Standard Model. In particular, we focus on the Minimal Supersymmetric Standard Model supplemented by right-handed neutrinos in the context of the Pati-Salam SU(4) x SU(2) L x SU(2) R Grand Unified Theory. We start by analysing the possibility of using Lepton Flavour Violation as a probe of physics beyond the Standard Model. We show that the μ → eγ and τ → μγ decays impose important constraints to the soft supersymmetry breaking parameters of the Pati-Salam model that already allow the formulation of lower bounds for the masses of the lighter supersymmetric particles. Secondly, we investigate how third family Yukawa unification can be used to provide a window into the soft supersymmetry breaking Lagrangian. We show that, a successful top quark mass prediction requires that the supersymmetric corrections to the bottom quark mass are small which, in turn, imposes a distinct hierarchy between the soft breaking parameters. Finally, we explicitly construct a realistic model of quark, charged lepton and neutrino masses and mixing angles, based on the Pati-Salam. gauge group supplemented by an abelian flavour symmetry, that can explain the large atmospheric neutrino mixing angle, suggested by the Super-Kamiokande data, and account for the large mixing angle Mikheyev-Smirnov-Wolfenstein solution to the solar neutrino problem. (author)

  14. IMPLEMENTASI KURIKULUM 2013 DALAM MENGEMBANGKAN SIKAP RELIGIUS SISWA MELALUI BIDANG STUDI BIOLOGI DI MADRASAH ALIYAH

    Directory of Open Access Journals (Sweden)

    Achmad Sultoni

    2016-05-01

    Full Text Available Recently many kinds of youth and students’ moral-character issues becomes a concern in Indonesia. To cope with these problems, Ministry of Education and Culture called for the implementation of Kurikulum 2013 (the national education curriculum. One of the curriculum characteristics is the religious competency to achieve in every school subjects including Biology. This research is aimed to evaluate implementation of Kurikulum 2013 in developing students’ religious attitude through Biology class in MAN 3 Malang. The field research with qualitative approach and descriptive design found that: first, the development of students’ religious competency is managed by teacher by formulating religious competency objective and accustoming salam and praying before the class begins; second, in the process of instruction, the teacher develop religious competency in four ways: salam and praying at introduction, finding relationship between Biology to Islamic teaching, salam and praying kafaratul majlis in closing the class, and admonishing students breaking the rules; last, this attitude development is constrained by the absence of evaluation guide.

  15. P-odd effects in the e-d scattering in the vector-like theories

    International Nuclear Information System (INIS)

    Gakh, G.I.

    1979-01-01

    P-odd effects in elastic electron-deuteron scattering, due to the weak neutral currents, are analyzed in the framework of the vector-like theories. Considered is the case of the most general form of the P-invariance breaking in the elastic e - d scattering amplitude in both the leptonic and hadronic vertices. It is found that in the vector-like theories the parity violation in the electro-deuteron elastic scattering is confined in the hadronic vertex, while in the Weinberg-Salam model it is confined in the leptonic vertex. In the vector-like theories the asymmetry in the scattering of longitudinally polarized electrons by nonpolarized deuterons depends on the electromagnetic and weak form factors of a deuteron, whereas in the Weinberg-Salam model it does not depend on the structure of the deuteron. In the Weinberg-Salam model the asymmetry is independent on the T-violating form factors of the deuteron, whereas such a dependence is present in the vector-like theories

  16. Synthesis of chromone, quinolone, and benzoxazinone sulfonamide nucleosides as conformationally constrained inhibitors of adenylating enzymes required for siderophore biosynthesis.

    Science.gov (United States)

    Engelhart, Curtis A; Aldrich, Courtney C

    2013-08-02

    MbtA catalyzes the first committed step of mycobactin biosynthesis in Mycobacterium tuberculosis (Mtb) and is responsible for the incorporation of salicylic acid into the mycobactin siderophores. 5'-O-[N-(Salicyl)sulfamoyl]adenosine (Sal-AMS) is an extremely potent nucleoside inhibitor of MbtA that possesses excellent activity against whole-cell Mtb but suffers from poor bioavailability. In an effort to improve the bioavailability, we have designed four conformationally constrained analogues of Sal-AMS that remove two rotatable bonds and the ionized sulfamate group on the basis of computational and structural studies. Herein we describe the synthesis, biochemical, and microbiological evaluation of chromone-, quinolone-, and benzoxazinone-3-sulfonamide derivatives of Sal-AMS. We developed new chemistry to assemble these three heterocycles from common β-ketosulfonamide intermediates. The synthesis of the chromone- and quinolone-3-sulfonamide intermediates features formylation of a β-ketosulfonamide employing dimethylformamide dimethyl acetal to afford an enaminone that can react intramolecularly with a phenol or intermolecularly with a primary amine via addition-elimination reaction(s). The benzoxazinone-3-sulfonamide was prepared by nitrosation of a β-ketosulfonamide followed by intramolecular nucleophilic aromatic substitution. Mitsunobu coupling of these bicyclic sulfonamides with a protected adenosine derivative followed by global deprotection provides a concise synthesis of the respective inhibitors.

  17. Topics in Theoretical Physics

    Energy Technology Data Exchange (ETDEWEB)

    Cohen, Andrew [Boston Univ., MA (United States); Schmaltz, Martin [Boston Univ., MA (United States); Katz, Emmanuel [Boston Univ., MA (United States); Rebbi, Claudio [Boston Univ., MA (United States); Glashow, Sheldon [Boston Univ., MA (United States); Brower, Richard [Boston Univ., MA (United States); Pi, So-Young [Boston Univ., MA (United States)

    2016-09-30

    interactions between quark and gluon particles, we have no clear idea how to express the proton state in terms of these quarks and gluons. This is because the proton, though a bound state of quarks and gluons, is not a state of a fixed number of particles due to strong interactions. Yet, understanding the proton state is very important in order to theoretically predict the reaction rates observed at the LHC in Geneva, which is a proton-proton collider. Katz has formulated a new approach to QFT, which among other things offers a way to adequately approximate the quantum wave function of a bound state at strong coupling. The approximation scheme is related to the fact that any sensible QFT (including that of the strong interactions) is at short distances approximately self-similar upon rescaling of space and time. It turns out that keeping track of the response upon this rescaling is important in efficiently parameterizing the state. Katz and collaborators have used this observation to approximate the state of the proton in toy versions of the strong force. In the late 60s Sheldon Glashow, Abdus Salam and Steven Weinberg (1979 Nobel Prize awardees) proposed a theory unifying weak and electromagnetic interaction which assumed the existence of new particles, the W and Z bosons. The W and Z bosons were eventually detected in high-energy collision in a particle accelerator at CERN, and the recent discovery of the Higgs meson at the Large Hadron Collider (LHC), always at CERN, completed the picture. However, deep theoretical considerations indicate that the theory by Glashow, Weinberg and Salam, often referred to as "the standard model" cannot be the whole story: the existence of new particles and new interactions at yet higher energies is widely anticipated. The experiments at the LHC are looking for these, while theorists, like Brower, Rebbi and collaborators, are investigating models for these new interactions. Working in a large national collaboration with access to the most

  18. Surgery-first accelerated orthognathic surgery: postoperative rapid orthodontic tooth movement.

    Science.gov (United States)

    Liou, Eric J W; Chen, Po-Hsung; Wang, Yu-Chih; Yu, Chung-Chih; Huang, C S; Chen, Yu-Ray

    2011-03-01

    Clinically, we have observed the phenomenon of postoperatively accelerated orthodontic tooth movement in patients who had orthognathic surgery. This phenomenon lasts for a period of 3 to 4 months. However, the underlying mechanisms of this phenomenon have not been well studied yet. The purpose of this prospective clinical pilot study was to study the postoperative changes in bone physiology and metabolism and the corresponding responses in the dentoalveolus, such as the changes in tooth mobility. Twenty-two consecutive adult patients who had 2-jaw orthognathic surgery were included in this study. The levels of serum alkaline phosphatase and C-terminal telopeptide of type I collagen (ICTP), as well as the tooth mobility of the maxillary and mandibular incisors based on the Periotest method (Siemens AG, Bensheim, Germany), were examined preoperatively and 1 week, 1 month, 2 months, 3 months, and 4 months postoperatively. The data were analyzed statistically. Both tooth mobility of the maxillary and mandibular incisors and ICTP significantly increased from 1 week to 3 months postoperatively and then decreased to their preoperative levels in the fourth month postoperatively. The changes in tooth mobility were significantly in correspondence with the changes in ICTP. The alkaline phosphatase level significantly increased from the first to fourth month postoperatively, but it was not significantly correlated to the changes in tooth mobility. The orthognathic surgery triggers a 3- to 4-month period of higher osteoclastic activities and metabolic changes in the dentoalveolus postoperatively, which possibly accelerates postoperative orthodontic tooth movement. Copyright © 2011 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  19. Bone turnover in elderly men: relationships to change in bone mineral density

    Directory of Open Access Journals (Sweden)

    Center Jacqueline R

    2007-02-01

    Full Text Available Abstract Background It is not clear whether bone turnover markers can be used to make inference regarding changes in bone mineral density (BMD in untreated healthy elderly men. The present study was designed to address three specific questions: (i is there a relationship between bone turnover markers and femoral neck BMD within an individual; (ii is there a relationship between baseline measurements of bone turnover markers and subsequent change in BMD; and (iii is there a relationship between changes in bone turnover markers and changes in femoral neck BMD? Methods The present study was part of the on-going Dubbo Osteoporosis Epidemiology Study, which was designed as a prospective investigation. Men who had had at least 3 sequential visits with serum samples available during follow-up were selected from the study population. Serum C-terminal telopeptide of type I collagen (sICTP, N-terminal propeptide of type I collagen (sPINP and femoral neck BMD were measured by competitive radioimmunoassays. Femoral neck bone mineral density (BMD was measured by a densitometer (GE Lunar Corp, Madison, WI. Various mixed-effects models were used to assess the association between the markers and changes in BMD. Results One hundred and one men aged 70 ± 4.1 years (mean ± SD met the criteria of selection for analysis. On average, sPINP decreased by 0.7% per year (p = 0.026, sICTP increased by 1.7% per year (p = 0.0002, and femoral neck BMD decreased by 0.4% per year (p Conclusion These results suggest that in elderly men of Caucasian background, changes in sPINP were inversely related to changes in BMD within an individual. However, neither sPINP nor sICTP was sufficiently sensitive to predict the rate of change in BMD for a group of individuals or for an individual.

  20. Occlusal loading and cross-linking effects on dentin collagen degradation in physiological conditions.

    Science.gov (United States)

    Turco, Gianluca; Frassetto, Andrea; Fontanive, Luca; Mazzoni, Annalisa; Cadenaro, Milena; Di Lenarda, Roberto; Tay, Franklin R; Pashley, David H; Breschi, Lorenzo

    2016-02-01

    This study evaluated the ability of 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride (EDC) to improve the stability of demineralized dentin collagen matrices when subjected to mechanical cycling by means of Chewing Simulation (CS). Demineralized dentin disks were randomly assigned to four groups (N=4): (1) immersion in artificial saliva at 37°C for 30 days; (2) pre-treatment with 0.5 M EDC for 60 s, then stored as in Group 1; (3) CS challenge (50 N occlusal load, 30 s occlusal time plus 30 s with no load, for 30 days); (4) pre-treatment with 0.5 M EDC as in Group 2 and CS challenge as in Group 3. Collagen degradation was evaluated by sampling storage media for ICTP and CTX telopeptides. EDC treated specimens showed no significant telopeptides release, irrespective of the aging method. Cyclic stressing of EDC-untreated specimens caused significantly higher ICTP release at day 1, compared to static storage, while by days 3 and 4, the ICTP release in the cyclic group fell significantly below the static group, and then remained undetectable from 5 to 30 days. CTX release in the cyclic groups, on EDC-untreated control specimens was always lower than in the static group in days 1-4, and then fell to undetectable for 30 days. This study showed that chewing stresses applied to control untreated demineralized dentin increased degradation of collagen in terms of CTX release, while collagen crosslinking agents may prevent dentin collagen degradation, irrespective of simulated occlusal function. Copyright © 2015 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.

  1. Knemometry, urine cortisol excretion, and measures of the insulin-like growth factor axis and collagen turnover in children treated with inhaled glucocorticosteroids

    DEFF Research Database (Denmark)

    Wolthers, O D; Hansen, M; Juul, A

    1997-01-01

    Correlations between knemometric (lower leg length) growth rates and urine free cortisol excretion, respectively, and serum concentrations of IGF-I, IGF binding protein-3, osteocalcin, carboxy terminal propeptide of type I collagen (PICP), carboxy terminal pryridinoline cross-linked telopeptide...... of type I procollagen (ICTP), and amino terminal propeptide of type III procollagen (PIIINP) were investigated in 17 asthmatic children aged 7-14 y during treatment with fluticasone propionate, 200 micrograms, and beclomethasone dipropionate, 400 and 800 micrograms/d, taken from dry powder inhalers...

  2. One-shot service searches: Preprint repositories at a mouseclick

    International Nuclear Information System (INIS)

    Canessa, E.; Pastore, G.

    1996-09-01

    In this article we introduce the ICTP-International Centre for Theoretical Physics's prototype for a ''One-Shot World-Wide Preprints Search'' on the Web. This is a new centralized interface for a global search throughout the most popular scientific preprint repositories. Herein, we briefly discuss our experience with the implementation of this service and propose it as a possible alternative solution to the problem of getting access to the information without being either overloaded with lots of new documents or not being informed at all. (author). 13 refs, 3 figs

  3. Pulmonary hyalinizing granuloma: Bilateral pulmonary nodules associated with chronic idiopathic thrombocytopenic purpura

    International Nuclear Information System (INIS)

    Satti, Mohamed B.; Batouk, Abdelnasir; Ahmad, Mohamed F.; Abdelaal, Mohamed A.; Abdelaziz, Muntasir M.

    2005-01-01

    We report a case of a 30-year-old female who had been treated periodically with steroids for idiopathic thrombocytopenic purpura ICTP over the last 10 years. Recently, during the course of investigation, she was found to have incidental asymptomatic multiple pulmonary nodules on chest CT. Following a needle biopsy to exclude malignancy, 2 nodules were excised and were histologically confirmed as pulmonary hyalinizing granuloma PHG. The remaining 2 nodules regressed on increasing her dose of steroids. The case is discussed with emphasis on the histological and radiological differential diagnosis, in addition to including ITP among the spectrum of immunologic conditions associated with PHG. (author)

  4. Intra-cardiac and peripheral levels of biochemical markers of fibrosis in patients undergoing catheter ablation for atrial fibrillation

    DEFF Research Database (Denmark)

    Begg, Gordon A; Karim, Rashed; Oesterlein, Tobias

    2017-01-01

    Aims: Measurement of circulating biomarkers of fibrosis may have a role in selecting patients and treatment strategy for catheter ablation. Pro-collagen type III N-terminal pro-peptide (PIIINP), C-telopeptide of type I collagen (ICTP), fibroblast growth factor 23 (FGF-23), and galectin 3 (gal-3......). Femoral venous, left and right atrial, and coronary sinus blood were analysed using ELISA to determine biomarker levels. Levels were compared with control patients (n = 36) and baseline characteristics, including left atrial voltage mapping data. C-telopeptide of type I collagen levels were higher in AF...

  5. Nuclear data libraries and online services. An introduction to the data types and services available from the IAEA Nuclear Data Section

    International Nuclear Information System (INIS)

    Oblozinsky, P.; Schwerer, O.

    1998-09-01

    The IAEA Nuclear Data Section provides convenient, cost-free access to the world's most comprehensive collection of numerical nuclear physics data. These nuclear data libraries result from a worldwide cooperation of nuclear data centres coordinated by the IAEA. An introduction is given to the various nuclear data types and libraries with particular emphasis to online services via the Internet. This paper summarizes a presentation for the IAEA Workshop on ''Nuclear Reaction Data and Nuclear Reactors: Physics, Design and Safety'' held at ICTP Trieste, Italy, 23 February - 17 March 1998. (author)

  6. Collagen markers in peritoneal dialysis patients

    DEFF Research Database (Denmark)

    Graff, J; Joffe, P; Fugleberg, S

    1995-01-01

    (PICP), aminoterminal propeptide of type III procollagen (PIIINP), and carboxyterminal telopeptide of type I collagen (ICTP)] were studied in 19 nondiabetic peritoneal dialysis patients. The absence of correlation between the mass appearance rates of the markers and the duration of dialysis treatment...... as well as the number of peritonitis episodes supports the concept that peritoneal dialysis does not cause persistent changes in the deposition and degradation rates of collagen. A correlation between the D/Pcreatinine 4 hr and the PICP mass appearance rates was found. Since it is unlikely...

  7. Vanishing theorems and effective results in algebraic geometry

    International Nuclear Information System (INIS)

    Demailly, J.P.; Goettsche, L.; Lazarsfeld, R.

    2001-01-01

    The School on Vanishing Theorems and Effective Results in Algebraic Geometry took place in ICTP, Trieste from 25 April 2000 to 12 May 2000. It was organized by J. P. Demailly (Universite de Grenoble I) and R. Lazarsfeld (University of Michigan). The main topics considered were vanishing theorems, multiplyer ideal sheaves and effective results in algebraic geometry, tight closure, geometry of higher dimensional projective and Kahler manifolds, hyperbolic algebraic varieties. The school consisted of two weeks of lectures and one week of conference. This volume contains the lecture notes of most of the lectures in the first two weeks

  8. The insulin-like growth factor axis and collagen turnover in asthmatic children treated with inhaled budesonide

    DEFF Research Database (Denmark)

    Wolthers, O D; Juul, A; Hansen, M

    1995-01-01

    Serum concentrations of growth hormone-dependent insulin-like growth factor I (IGF-I) and insulin-like growth factor binding protein-3 (IGFBP-3), the carboxy terminal propeptide of type I procollagen (PICP), the carboxy terminal pyridinoline cross-linked telopeptide of type I collagen (ICTP......) and the amino terminal propeptide of type III procollagen (PIIINP) were studied in 14 prepubertal children with asthma (mean age 9.7 years) during treatment with inhaled budesonide. The study design was a randomized, crossover trial with two double-blind treatment periods (200 and 800 micrograms) and one open...

  9. Groups on transformations in Finslerian spaces

    International Nuclear Information System (INIS)

    Misra, R.B.

    1993-01-01

    The article first appeared in the Internal Reports of the ICTP in 1981. Since then the topic has attracted a large number of authors and several contributions have been made thereafter. Thus, a previous work of the author is revised and up-dated here including the post-1981 contributions in the field. Infinitesimal transformations defining motions, affine motions, projective motions, conformal transformations and curvature collineations in various types of Finslerian spaces are discussed here. The notation and symbolism used in the paper is mainly based on the author's works. (author). 72 refs

  10. News in Brief

    Science.gov (United States)

    2011-12-01

    China Accomplishes International Evaluation on Science Funding and Management Performance Panel Meeting of NSFC-NIH Joint Program in Beijing NSFC and CAS's New Round Collaboration for Large Scientific Facilities Vice President Shen Wenqing Meets with President of the Helmholtz Association NSFC Supervision Delegation Visits to Japan and Korea NSFC Strengthens Ties with PIs of the Research Fund for International Young Scientists The 9th ASIAHORCs Meeting Held in Daejoen, Korea NSFC Vice President Meets with ICTP Director First U.S.-China Women Chemists Workshop in Beijing Vice President Attends 5th ASIAHORCs Meeting NSFC Vice President Attended IIASA Council Meeting NSFC Vice President Meets With JST Guests

  11. Sequential analysis of biochemical markers of bone resorption and bone densitometry in multiple myeloma

    DEFF Research Database (Denmark)

    Abildgaard, Niels; Brixen, Kim; Eriksen, Erik Fink

    2004-01-01

    BACKGROUND AND OBJECTIVES: Bone lesions often occur in multiple myeloma (MM), but no tests have proven useful in identifying patients with increased risk. Bone marker assays and bone densitometry are non-invasive methods that can be used repeatedly at low cost. This study was performed to evaluate...... 6 weeks, DEXA-scans performed every 3 months, and skeletal radiographs were done every 6 months as well as when indicated. RESULTS: Serum ICTP and urinary NTx were predictive of progressive bone events. Markers of bone formation, bone mineral density assessments, and M component measurements were...

  12. Associating science and development - the Trieste Centre

    International Nuclear Information System (INIS)

    Hamende, A.

    1982-01-01

    The International Centre for Theoretical Physics, located in Trieste, Italy, is supported by income from the Italian Government, from UNESCO and from the IAEA. The Centre organizes research sessions, workshops and extended courses on advanced topics in the physical and mathematical sciences and encourages scientists, especially from developing countries, to visit the ICTP for extended periods. With the aim of facilitating the transfer of knowledge to scientists from developing countries, the Centre's current scientific programme is divided up into five major disciplines: physics and energy; physics and frontiers of knowledge; physics and technology; physics and the environment and natural resources; applicable mathematics

  13. International Centre for Theoretical Physics. Scientific activities in 1980

    International Nuclear Information System (INIS)

    1981-09-01

    The Centre's scientific programme for 1980 falling under five main fields, i.e. Physics and Energy, Physics and Technology, Physics and Frontiers of Knowledge, Applicable Mathematics and Planning Models, and Physics of the Environment and of Natural Resources, is briefly discussed. Participation in the research and training-for-research activities of the ICTP during 1980 and the stable resources for the period 1970 to 1981 are shown in tables. A detailed ''post-spectus'' of the seminars, meetings, and courses which the centre organized in 1980 is given. A list of titles of the preprints and internal reports produced during the year is also given for each area of activity

  14. International Centre for Theoretical Physics. Scientific activities in 1985

    International Nuclear Information System (INIS)

    1986-08-01

    A review of the scientific activities of the Centre, including workshops, research, and training-for-research is presented. The scientific program consists of ten main fields, Physics and Energy, Fundamental Physics, Physics of Condensed Matter, Applied Physics, Physics of the Living State, Physics of the Environment, Mathematics, Physics Teaching, Experimental Physics Training, and Physics and Development. In addition to a brief description of each workshop, symposium, college, and meeting, tables summarizing the participation at ICTP activities are given. A list of preprints and internal reports issued in 1985 is included

  15. RegCM4.3.5 Bölgesel İklim Modelini Kullanarak Türkiye ve Çevresi Bölgelerin Yakın Gelecekteki Hava Sıcaklığı ve Yağış Klimatolojileri İçin Öngörülen Değişikliklerin İncelenmesi

    OpenAIRE

    TURP, M. Tufan; ÖZTÜRK, Tuğba; TÜRKEŞ, Murat; KURNAZ, M. Levent

    2014-01-01

    In this study, projected future changes for the period of 2020 – 2050 in mean air temperature and precipitation climatology and year-to-year variability with respect to the control period of 1970 – 2000 were investigated for the domain of Turkey via regional climate model simulations. In order to investigate the projected changes in near future climate conditions, Regional Climate Model (RegCM4.3.5) of ICTP (International Centre for Theoretical Physics) was driven by three different global cl...

  16. Collagen derived serum markers in carcinoma of the prostate

    DEFF Research Database (Denmark)

    Rudnicki, M; Jensen, L T; Iversen, P

    1995-01-01

    of prostatic bone metastases. Blood samples were obtained prior to biopsy or TURP. Serum PICP, PIIINP and ICTP were measured with commercial available RIAs and PSA by IRMA. Serum PSA was increased in patients with local prostatic cancer compared with patients with hyperplasia (p .... The sensitivity ranged from 0.53 to 0.62 and specificity from 0.91 to 0.95. The sensitivity for alkaline phosphatase and PSA was 0.69 and 0.66 and specificity 0.91 and 0.68, respectively....

  17. International Centre for Theoretical Physics: Scientific activities in 1986

    International Nuclear Information System (INIS)

    1987-10-01

    A review of the scientific activities of the Centre in 1986, including workshops, research and training-for-research is presented. The scientific program consists of eight main fields: Physics and Energy, Fundamental Physics, Physics of Condensed Matter, Applied Physics, Mathematics, Physics of the Environment and of National Resources, Physics of the Living State, Physics and Development. In addition to a brief description of each workshop, symposium, college and meeting, tables summarizing the participation of ICTP activities are given. A list of preprints and internal reports issued in 1986 is included

  18. Proposal for an IAEA - sponsored project of interregional co-operation for training of nuclear scientists in developing countries, using the expertise available in the nuclear data field

    International Nuclear Information System (INIS)

    Kocherov, N.; Schmidt, J.J.

    1980-07-01

    During the Winter College on Nuclear Physics and Reactors jointly organized by the IAEA and the International Centre for Theoretical Physics (ICTP) in January - March 1980 and held at the ICTP in Trieste, a Working Group was convened from participants in the Interregional Advanced Training Course on Applications of Nuclear Theory to Nuclear Data Calculations for Reactor Design. The Working Group examined the current fast neutron nuclear data requirements for nuclear technologies and discussed possible means to meet these requirements, with a major emphasis on the possible contributions by and benefit for the developing countries. The Working Group concluded that the organisation of an IAEA-sponsored Project of Interregional Co-operation for Training of Nuclear Scientists in Developing Countries, Using the Expertise Available in the Nuclear Data Field, would be the best solution to cope with the problems in question and drafted an outline of the technical programme and organization of such a project the revised version of which is presented in this report

  19. Nuclear Data Sheets for A=217

    Energy Technology Data Exchange (ETDEWEB)

    Kondev, F. G.; McCutchan, E. A.; Singh, B.; Banerjee, K.; Bhattacharya, S.; Chakraborty, A.; Garg, S.; Jovancevic, N.; Kumar, S.; Rathi, S. K.; Roy, T.; Lee, J.; Shearman, R.

    2018-01-01

    The evaluated spectroscopic data are presented for 12 known nuclides with A=217 (Tl, Pb, Bi, Po, At, Rn, Fr, Ra, Ac, Th, Pa, U). For Tl-217, Pb-217, Pa-217, and U-217 nuclei, only information on the ground state is available. Levels in Bi-217 are known only from isomer decay following fragmentation reaction and those in At-217 and Rn-217 only from the a decay of Fr-221 and Ra-221, respectively. High spin levels in Ra-217 are mainly from 1987SuZY and 2011MuZZ which are a lab report and thesis, respectively. Due to differences between these studies, further experimental study is needed to firmly establish the level scheme.This evaluation was carried out as part of a joint IAEA-ICTP workshop for Nuclear Structure and Decay Data, organized and hosted by the IAEA, Vienna and ICTP, Trieste, Aug 22 to Sept 2 2016. The evaluation work was coordinated by E.A. McCutchan (BNL). This work supersedes the previous previous A=217 evaluation (2003Ak06) by Y.A. Akovali.

  20. Observation of non-chemical equilibrium effect on Ar-CO2-H2 thermal plasma model by changing pressure

    International Nuclear Information System (INIS)

    Al-Mamun, Sharif Abdullah; Tanaka, Yasunori; Uesugi, Yoshihiko

    2009-01-01

    The authors developed a two-dimensional one-temperature chemical non-equilibrium (1T-NCE) model of Ar-CO 2 -H 2 inductively coupled thermal plasmas (ICTP) to investigate the effect of pressure variation. The basic concept of one-temperature model is the assumption and treatment of the same energy conservation equation for electrons and heavy particles. The energy conservation equations consider reaction heat effects and energy transfer among the species produced as well as enthalpy flow resulting from diffusion. Assuming twenty two (22) different particles in this model and by solving mass conservation equations for each particle, considering diffusion, convection and net production terms resulting from hundred and ninety eight (198) chemical reactions, chemical non-equilibrium effects were taken into account. Transport and thermodynamic properties of Ar-CO 2 -H 2 thermal plasmas were self-consistently calculated using the first-order approximation of the Chapman-Enskog method. Finally results obtained at atmospheric pressure (760 Torr) and at reduced pressure (500, 300 Torr) were compared with results from one-temperature chemical equilibrium (1T-CE) model. And of course, this comparison supported discussion of chemical non-equilibrium effects in the inductively coupled thermal plasmas (ICTP).

  1. Correlation of serum MCP-1 and VE-cadherin levels with neural function and carotid atherosclerosis in patients with acute cerebral infarction

    Directory of Open Access Journals (Sweden)

    Yan-Bing Xi

    2017-05-01

    Full Text Available Objective: To study the correlation of serum monocyte chemoattractant protein-1 (MCP-1 and vascular endothelial cadherin (VE-cadherin levels with neural function and carotid atherosclerosis in patients with acute cerebral infarction. Methods: A total of 78 patients who were diagnosed with acute cerebral infarction in our hospital between May 2013 and August 2016 were selected as pathological group, and 80 healthy volunteers who received physical examination in our hospital during the same period were selected as control group. Serum was collected to determine the levels of MCP-1, VE-cadherin, nerve injury molecules, inflammatory mediators, proteases and their hydrolysate. Results: Serum MCP-1, VE-cadherin, NGB, NSE, S100β, HMGB-1, sCD40L, YKL-40, visfatin, CatK, MMP9 and ICTP levels of pathological group were significantly higher than those of control group; serum MCP-1 and VE-cadherin levels of pathological group were positively correlated with NGB, NSE, S100β, HMGB-1, sCD40L, YKL-40, visfatin, CatK, MMP9 and ICTP levels. Conclusion: Serum MCP-1 and VE-cadherin levels abnormally increase in patients with acute cerebral infarction, and are closely related to the nerve injury and atherosclerosis process.

  2. Nuclear Data Sheets for A=217

    Science.gov (United States)

    Kondev, F. G.; McCutchan, E. A.; Singh, B.; Banerjee, K.; Bhattacharya, S.; Chakraborty, A.; Garg, S.; Jovancevic, N.; Kumar, S.; Rathi, S. K.; Roy, T.; Lee, J.; Shearman, R.

    2018-01-01

    The evaluated spectroscopic data are presented for 12 known nuclides with A=217 (Tl, Pb, Bi, Po, At, Rn, Fr, Ra, Ac, Th, Pa, U). For 217Tl, 217Pb, 217Pa, and 217U nuclei, only information on the ground state is available. Levels in 217Bi are known only from isomer decay following fragmentation reaction and those in 217At and 217Rn only from the α decay of 221Fr and 221Ra, respectively. High spin levels in 217Ra are mainly from 1987SuZY and 2011MuZZ which are a lab report and thesis, respectively. Due to differences between these studies, further experimental study is needed to firmly establish the level scheme. This evaluation was carried out as part of a joint IAEA-ICTP workshop for Nuclear Structure and Decay Data, organized and hosted by the IAEA, Vienna and ICTP, Trieste, Aug 22 to Sept 2 2016. The evaluation work was coordinated by E.A. McCutchan (BNL). This work supersedes the previous previous A=217 evaluation (2003Ak06) by Y.A. Akovali.

  3. External circuit integration with electromagnetic particle in cell modeling of plasma focus devices

    International Nuclear Information System (INIS)

    Seng, Y. S.; Lee, P.; Rawat, R. S.

    2015-01-01

    The pinch performance of a plasma focus (PF) device is sensitive to the physical conditions of the breakdown phase. It is therefore essential to model and study the initial phase in order to optimize device performance. An external circuit is self consistently coupled to the electromagnetic particle in cell code to model the breakdown and initial lift phase of the United Nations University/International Centre for Theoretical Physics (UNU-ICTP) plasma focus device. Gas breakdown during the breakdown phase is simulated successfully, following a drop in the applied voltage across the device and a concurrent substantial rise in the circuit current. As a result, the plasma becomes magnetized, with the growing value of the magnetic field over time leading to the gradual lift off of the well formed current sheath into the axial acceleration phase. This lifting off, with simultaneous outward sheath motion along the anode and vertical cathode, and the strong magnetic fields in the current sheath region, was demonstrated in this work, and hence validates our method of coupling the external circuit to PF devices. Our method produces voltage waveforms that are qualitatively similar to the observed experimental voltage profiles of the UNU-ICTP device. Values of the mean electron energy before and after voltage breakdown turned out to be different, with the values after breakdown being much lower. In both cases, the electron energy density function turned out to be non-Maxwellian

  4. Optics development in Africa

    International Nuclear Information System (INIS)

    Buah-Bassuah, Paul K.

    2002-11-01

    The case study of the Office of External Activities in Cape Coast, Ghana has turned out to be a successful story in promoting research and capacity building of young scientists. The total involvement of many organizations show how laudable the idea has been. This centre has come to serve as a place to solve scientific problems as well as problems of national interest. It is foreseen that its activities can be a means to congregate African scientists to solve common problems. I think the bold step taken by OEA and some organs of ICTP, Trieste, Italy, Lund Institute of Technology, Sweden and Istituto Nazionale di Ottica Applicata, Firenze, Italy has helped up and coming African scientists to come face to face with the challenges of Laser research. Such projects seem feasible and sustainable since experts in these areas can serve as contact persons in Africa to undertake common research using optical techniques. This project has made it possible to explore various areas in optics that can be used to solve problems peculiar to the continent. This ICAC programme in Cape Coast has been successful thanks to the cooperation of the organs of ICTP as well as various international organizations. It is hoped that scientists elsewhere will have the interest to collaborate with us in order to uplift the image of optics in the continent - Africa. (author)

  5. The standard model and colliders

    International Nuclear Information System (INIS)

    Hinchliffe, I.

    1987-03-01

    Some topics in the standard model of strong and electroweak interactions are discussed, as well as how these topics are relevant for the high energy colliders which will become operational in the next few years. The radiative corrections in the Glashow-Weinberg-Salam model are discussed, stressing how these corrections may be measured at LEP and the SLC. CP violation is discussed briefly, followed by a discussion of the Higgs boson and the searches which are relevant to hadron colliders are then discussed. Some of the problems which the standard model does not solve are discussed, and the energy ranges accessible to the new colliders are indicated

  6. Gauge theory of phase and scale

    OpenAIRE

    PAW\\LOWSKI, Marek

    1999-01-01

    Old Weyl's the idea of scale recalibration freedom and Infeld's and van der Waerden's (IW) ideas concerning geometrical interpretation of natural spinor phase gauge symmetry are discussed in the context of modern models of fundamental particle interactions. It is argued that (IW) gauge symmetry can be naturaly identified with the U(1) symmetry of the Weinberg-Salam model. It is also argued that there are no serious reasons to reject Weyl's gauge the...

  7. Trace and essential elements determination in baby formulas milk by INAA and k0-INAA techniques

    International Nuclear Information System (INIS)

    Lylia Hamidatou; Hocine Slamene; Tarik Akhal; Alaa Boulegane

    2014-01-01

    As a part of the food analysis program executed at Es-Salam research reactor by neutron activation analysis laboratory, the concentration of As, Ba, Br, Ca, Fe, K, La, Rb and Zn in baby formulas milk have been determined by using INAA and k 0 -NAA techniques. It was found that the concentration of all elements obtained by both techniques was relatively identical for the three brands of the 0-6 and 6-12 months of analyzed samples. In addition, the analytical results have been compared with those given by producers. (author)

  8. A precise determination of the electroweak mixing angle from semileptonic neutrino scattering

    CERN Document Server

    Lanceri, Livio

    1987-01-01

    After the discovery of the weak neutral current,' great efforts were undertaken to test the prediction of the Glashow-Salam-Weinberg model that stated that the coupling in all neutral current phenomena depends on one single parameter, $sin^{2}\\Theta_{w}$. Indeed, a unique value of this parameter can explain the couplings measured in many different processes, including leptonic and semileptonic neutrino scattering, asymmetries in electron-nucleon, electron-positron, and muon interactions, parity violating effects in atomic transitions, and the masses of the W and z bosons. $^{2}$

  9. Rare kaon decays at LAMPF II

    Energy Technology Data Exchange (ETDEWEB)

    Sanford, T.W.L.

    1982-06-01

    At LAMPF II, intense beams of kaons will be available that will enable the rare kaon-decay processes to be investigated. This note explores some of the possibilities, which divide into two classes: (1) those that test the standard model of Weinberg and Salam and (2) those that are sensitive to new interactions. For both classes, experiments have been limited not by systematic errors but rather by statistical ones. LAMPF II with its intense flux of kaons thus will enable the frontier of rare kaon decay to be realistically probed.

  10. The Standard Model is Natural as Magnetic Gauge Theory

    DEFF Research Database (Denmark)

    Sannino, Francesco

    2011-01-01

    matter. The absence of scalars in the electric theory indicates that the associated magnetic theory is free from quadratic divergences. Our novel solution to the Standard Model hierarchy problem leads also to a new insight on the mystery of the observed number of fundamental fermion generations......We suggest that the Standard Model can be viewed as the magnetic dual of a gauge theory featuring only fermionic matter content. We show this by first introducing a Pati-Salam like extension of the Standard Model and then relating it to a possible dual electric theory featuring only fermionic...

  11. Low-energy features of a 1-tev higgs sector

    CERN Document Server

    Appelquist, Thomas

    1979-01-01

    It seems very likely that the Higgs sector of a spontaneously broken gauge theory could be heavy (M = 1 TeV) and strongly interacting. By exploiting the intimate connection of such theories to nonlinear a models, it is possible to show under quite general conditions what sort of impact the heavy Higgs sector can have on low energy experiments (E << 1 TeV). In this talk, the techniques and results will be summar- ized for an SU(2) gauge theory, The analysis of the Weinberg-Salam and other realistic theories will appear in a forthcoming paper.

  12. Collider physics for the late 1980's

    International Nuclear Information System (INIS)

    Hinchliffe, I.

    1987-01-01

    Topics in the Standard Model of strong and electroweak interactions and how these topics are relevant for the high energy colliders are discussed. Radiative corrections in the Glashow-Weinberg-Salam model are discussed, stressing how these corrections may be measured at LEP and the SLC. CP violation is discussed, followed by a discussion of the Higgs boson and the searches which can be carried out for it. Some features of quantum chromodynamics are discussed which are relevant to hadron colliders. Some of the problems which the Standard Model does not solve are discussed. 115 refs., 53 figs

  13. Parity violation in elastic N-N scattering at high energies

    International Nuclear Information System (INIS)

    Chiappetta, P.; Soffer, J.; Wu, Tai Tsun; Harvard Univ., Cambridge, MA

    1981-09-01

    We calculate the asymmetry in nucleon-nucleon elastic scattering at high energies arising from heavy boson exchange in the standard Weinberg-Salam model. By neglecting the strong interaction enhancement effects, our result for p-n scattering is one order of magnitude higher than for p-p scattering. Enhancement effects increase the p-p asymmetry which may become comparable to the p-n asymmetry. They are however too small if compared with the total cross section asymmetry measured at Argonne at 6 GeV/c on a water target

  14. Parity violating NN forcES in the quark compound bag model

    International Nuclear Information System (INIS)

    Simonov, Yu.A.

    1982-01-01

    Parity violation (PV) in the interaction is considered as due to the Weinberg-Salam quark-quark interaction inside the six-quark bag. The initial and final strong interaction is described within the same quark compound bag (QCB) model, where the NN coupling to the six quark QCB is defined from the NN experimental data. The resulting PV amplitude contains no free parameters and allows therefore an unambiguous test of the QCB model. An estimate of the 1 S 0 → 3 P 0 contribution to the proton-proton asymmetry is in a rough agreement with experimental data [ru

  15. MSGUTs from Germ to Bloom towards Falsifiability and Beyond

    CERN Document Server

    Aulakh, Charanjit S.

    2005-01-01

    We review the development of minimal renormalizable SO(10) Susy GUTs. Using our $SO(10) \\to G_{Pati-Salam} $ label decomposition we calculated the complete GUT scale spectra and couplings and the threshold effects therefrom. The corrections to $\\alpha_G, Sin^2{\\theta}_W $ and $ M_X $ are sensitive functions of the single parameter $\\xi$ that controls symmetry breaking and slow funtions of the others. Scans of the parameter space to identify regions compatible with gauge unification are shown. The tight connection between the phenomenology of neutrino oscillations and exotic ($\\Delta B\

  16. Hawking radiation and strong gravity black holes

    International Nuclear Information System (INIS)

    Qadir, A.; Sayed, W.A.

    1979-01-01

    It is shown that the strong gravity theory of Salam et al. places severe restrictions on black hole evaporation. Two major implications are that: mini blck holes (down to masses approximately 10 -16 kg) would be stable in the present epoch; and that some suggested mini black hole mechanisms to explain astrophysical phenomena would not work. The first result implies that f-gravity appears to make black holes much safer by removing the possibility of extremely violent black hole explosions suggested by Hawking. (Auth.)

  17. Electric weak interaction at high energies

    International Nuclear Information System (INIS)

    Satsunkevich, I.S.

    1979-01-01

    An analysis of an experimental evidence for the existence of W +- , Z 0 and H-bosons obtained at c.m.s. energies (10-60) GeV is carried out in order to establish the gauge group of magnetic electro and weak interactions. Indirect testing techniques of the Weinberg-Salam model via the study of interference near-resonance phenomena between near-resonances and resonance amplitudes are evaluated. The usefullness of near-resonance interference for better evaluation of properties of a Z 0 meson is pointed out [ru

  18. Water resilient green cities in Africa Newsletter issue 2

    DEFF Research Database (Denmark)

    Liu, Li; Jensen, Marina Bergen; Fryd, Ole

    2015-01-01

    Many cities around the world are exploring green infrastructures with landscape-based systems as solutions to complement the limited capacity or extend the conventional water systems. In addition to improving flood protection, these landscape-based systems can support water supply, groundwater...... recharge and provide additional ecosystem services to the benefit of the citizens’ everyday life. Cities in Africa, like Addis Ababa, Ethiopia and Dar es Salam, Tanzania, do not have adequate city-wide conventional urban water systems like centralized, pipe-based water supply, drainage and sanitation...

  19. Point de vue de la population sur la réforme du secteur de la ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Point de vue de la population sur la réforme du secteur de la sécurité palestinien. Dans le cadre de son plan visant à bâtir les institutions de l'État palestinien, le gouvernement de Salam Fayyad s'était engagé en août 2009 à moderniser le secteur de la sécurité palestinien en se fondant sur l'État de droit, sous la ...

  20. Country Presentation Tanzania

    International Nuclear Information System (INIS)

    KIFANGA, L.D.; GYIMBI, H.; MLOWOLA, V.; KASONGWA, M.

    2010-01-01

    Discusses overview of incidents and developments involving illicit trafficking of nuclear and other radioactive materials in Tanzania.13 cases have been recorded between 1996 and 2008. All cases occurred in Dar Es Salam. Police, customs and security staff intercepted the sources and culprits arrested. The latest incident occurred in May 2008 and involved illegal possession of a capsule labelled nuclear material (U-238). A total of 14 sources were seized . Types of sources seized were u-238, Caesium-137, Strontium-90 and Radium-226.

  1. Front-back and charge asymmetries of leptons from hadronic productions of W+- and Z0-bosons

    International Nuclear Information System (INIS)

    Hayashi, Masaki; Katsuura, Kazuo; Homma, Saburo.

    1981-01-01

    Using the QCD perturbation theory up to O(αsub(s)) and the standard Weinberg-Salam model we carry out numerical evaluation for the frontback asymmetry and the charge asymmetry of the leptons from the decay of the W +- - and Z 0 -bosons produced in the reactions pp, anti pp → W +- + anything → l +- + v sub(l) + anything and pp, anti pp → (γ, Z 0 ) + anything → l + + l - + anything. For the scale violating parton distribution we employ the Glueck-Owens-Reya parametrization. We show that these asymmetries are fairly large under certain kinematical conditions. (author)

  2. Saa võimust : [luuletused] / J{u00E1nos Pilinszky ; tlk. Tiiu Kokla, Kairi Mesipuu

    Index Scriptorium Estoniae

    Pilinszky, J{u00E1nos

    2004-01-01

    Sisu: Saa võimust ; Trapets ja tõke ; Talvise taeva all ; Ühe kire marginaaliks ; Harbach 1944 ; Armastuse kõrb ; Apokrüüf ; Nelik ; Järelsõna ; Introitus ; Van Gogh ; Väike öömuusika ; Timuka päevikust ; Madalseisu pidu ; Pole muud ; Ravensbrücki passioon ; Van Goghi palve ; Kadunud poja otsimine ; Su käsi, mu käsi ; Salamõrv ; Luuletus ; Peks ; 22. detsember 1970 ; Visand ; Kolmandal päeval ; Kadunud pojad ; Lõpetamata minevik. Eluloolisi andmeid autori kohta lk. 181-182

  3. Cross sections for neutrino and antineutrino neutral current interactions

    International Nuclear Information System (INIS)

    Bosetti, P.C.; Deden, H.; Deutschmann, M.; Fritze, P.; Graessler, H.; Hasert, F.J.; Morfin, J.; Schulte, R.; Schultze, K.; Seyfert, H.; Banerjee, S.; Barnham, K.W.J.; Beuselinck, R.; Butterworth, I.; Clayton, E.F.; Miller, D.B.; Powell, K.J.; Davis, C.L.; Grossman, P.; McGow, R.; Mulvey, J.H.; Myatt, G.; Perkins, D.H.; Pons, R.; Radojicic, O.; Renton, P.; Saitta, B.; Stenger, V.

    1978-01-01

    The cross sections for γ and anti γ neutral current interactions for which the hadron energy is > 15 GeV have been measured. These results, and the ratios of neutral current to charged current sections, are in agreement with the Weinberg-Salam model. Values of sin 2 thetasub(w) have been obtained both with and without the use of a parametrisation for the hadronic part of the interaction; the values are in good agreement with each other and the preferred result, that obtained by the method independent of hadronic models, is sin 2 thetasub(w) = 0.22 +- 0.05. (Auth.)

  4. Can coupling constants be related

    International Nuclear Information System (INIS)

    Nandi, Satyanarayan; Ng, Wing-Chiu.

    1978-06-01

    We analyze the conditions under which several coupling constants in field theory can be related to each other. When the relation is independent of the renormalization point, the relation between any g and g' must satisfy a differential equation as follows from the renormalization group equations. Using this differential equation, we investigate the criteria for the feasibility of a power-series relation for various theories, especially the Weinberg-Salam type (including Higgs bosons) with an arbitrary number of quark and lepton flavors. (orig./WL) [de

  5. Electroweak interference in e+e- annihilation

    International Nuclear Information System (INIS)

    Saxon, D.H.

    1984-10-01

    High precision results from PEP and the extended energy range of PETRA now allow accurate comparison of experimental results with theory. One-loop weak corrections have been calculated in both Weinberg-Salam and Glashow schemes and are needed in these comparisons. The Zsup(o) propagator effect is seen and the asymmetries agree, with a 7% error, with rho = 1. The μ-pair asymmetry is a little high. The effects of normalisation errors are discussed. The weak isospins of c- and b-quarks have been measured and are consistent with weak isodoublets, so that a t-quark is required by the asymmetry measurements. (author)

  6. Study of neutral currents in the Argonne 12-foot bubble chamber

    International Nuclear Information System (INIS)

    Hyman, L.G.

    1975-01-01

    Using the ANL 12-foot H 2 bubble chamber filled with hydrogen and deuterium, neutral current events were isolated in the channels νp → νpπ 0 , νp → νnπ + , νn → νpπ - and νn → ν K 0 /sub s/Λ 0 . The neutral current sample is compared to the corresponding charged current interactions. The background reactions which contribute to these channels were carefully studied, and it was concluded that we could isolate the neutral current signal. The Weinberg--Salam gauge model is in good agreement with the data. (U.S.)

  7. Spontaneous regulating mechanisms that may have led to the origin of life

    International Nuclear Information System (INIS)

    Chela Flores, J.

    1992-07-01

    According to Salam condensation may be relevant in biochemistry, as a factor contributing to the homochirality of amino acids. We attempt to show that DNA packaging may be modelled, by interpreting chromatin as a form of soft matter, in which a phase transition has induced chromatin into a condensed mode. In the context of the origin of life we show the relevance of simultaneous discussion of DNA packaging, transcription, and DNA replication. Beyond a certain critical length of the protogenome (RNA), physical properties of inert condensed matter may have given rise to a spontaneous regulating mechanism of certain significance for the evolution of life on Earth. (author). 31 refs, 1 tab

  8. Ratio of neutral-current to charged-current cross sections for inclusive neutrino interactions in hydrogen

    International Nuclear Information System (INIS)

    Harris, F.A.; Berge, J.P.; Bogert, D.V.; Cence, R.J.; Coffin, T.C.; Cundy, D.C.; Diamond, R.N.; DiBianca, F.A.; French, H.T.; Hanft, R.; Kochowski, C.; Louis, W.C.; Lynch, G.R.; Malko, J.; Marriner, J.P.; Nezrick, F.A.; Parker, S.I.; Peters, M.W.; Peterson, V.Z.; Roe, B.P.; Ross, R.T.; Scott, W.G.; Seidl, A.A.; Smart, W.; Stenger, V.J.; Stevenson, M.L.; Vander Velde, J.C.

    1977-01-01

    The ratio of neutral-current to charged-current cross sections is determined from a sample of events obtained in an exposure of the Fermilab 15-ft hydrogen bubble chamber to a high-energy, horn-focused neutrino beam. For evens with three or more prongs and with visible hadron momentum above 10 GeV/c, the ratio is 0.40 +- 0.14. A Monte Carlo calculation assuming the Weinberg-Salam model is used to correct for excluded events, yielding R/sub NC/CC/ = 0.48 +- 0.17

  9. Unified treatment of weak and electromagnetic interactions in a SU(4) x SU(4) chiral theory of mesons

    International Nuclear Information System (INIS)

    Ebert, D.; Volkov, M.K.

    1978-01-01

    Starting from a phenomenological chiral SU(4)xSU(4) Lagrangian for hadrons weak and electromagnetic interactions are introduced by considering nonlinear realizations of the gauge group SU(2)sub(L)xU(1) of the Weinberg-Salam model. The final effective Lagrangian for the weak interaction of hadrons has the usual current x current structure. The charmed charged currents are of the Cabibbo type, the neutral current satisfies the condition Δ S = 0 of the G.I.M. scheme

  10. PERSEPSI AKUNTAN TENTANG PENERAPAN PRINSIP-PRINSIP AKUNTANSI SYARIAH DALAM LEMBAGA KEUANGAN SYARIAH

    Directory of Open Access Journals (Sweden)

    Nur Anisah

    2017-10-01

    Full Text Available This study aims to determine the perception of accountants on accounting principles of sharia in Islamic financial institutions. This type of research using qualitative methods to survey respondents is an accountant who worked at BMT As-Salam and BMT-Mojoagung Maslahah in Jombang. The results showed that according to the accountant at the two institutions that they work BMT place already apply accounting principles of sharia, the humanist, emancipatory, transcendental and teological although its application is not perfect. Balance and fairness to the owners, managers and users of funds may be a dilemma in operation. Keywords: perception, accountants, accounting principles of sharia, Islamic financial institutions

  11. Mineralogical, geochemical and hydrocarbon potential of subsurface Cretaceous shales, Northern Western Desert, Egypt

    Directory of Open Access Journals (Sweden)

    D.A. Mousa

    2014-03-01

    Full Text Available Twenty four Cretaceous shale core samples of Gibb Afia-1, Betty-1, Salam-1X and Mersa Matruh-1 wells were mineralogically and geochemically studied using XRD, XRF and Rock Eval Pyrolysis. Kaolinite, smectite and illite are the main clay minerals in addition to rare chlorite, while the non-clay minerals include quartz, calcite, dolomite and rare siderite. The shales were derived through intensive chemical weathering of mafic basement and older sedimentary rocks. These sediments were deposited in a near-shore shallow marine environment with some terrestrial material input. The shales have poor to fair organic content. It is marginally to rarely mature.

  12. Rare kaon decays at LAMPF II

    International Nuclear Information System (INIS)

    Sanford, T.W.L.

    1982-06-01

    At LAMPF II, intense beams of kaons will be available that will enable the rare kaon-decay processes to be investigated. This note explores some of the possibilities, which divide into two classes: (1) those that test the standard model of Weinberg and Salam and (2) those that are sensitive to new interactions. For both classes, experiments have been limited not by systematic errors but rather by statistical ones. LAMPF II with its intense flux of kaons thus will enable the frontier of rare kaon decay to be realistically probed

  13. Pomeron calculus in zero transverse dimensions: Summation of pomeron loops and generating functional for multiparticle production processes

    International Nuclear Information System (INIS)

    Levin, E.; Prygarin, A.

    2008-01-01

    In this paper we address two problems in pomeron calculus in zero transverse dimensions: the summation of the pomeron loops and the calculation of the processes of multiparticle generation. We introduce a new generating functional for these processes and obtain the evolution equation for it. We argue that in the kinematic range given by 1 2 ) S Y S ), we can reduce the pomeron calculus to the exchange of non-interacting pomerons with the renormalized amplitude of their interaction with the target. Therefore, the summation of the pomeron loops can be performed using the Mueller-Patel-Salam-Iancu approximation. (orig.)

  14. Leptons and their interactions

    International Nuclear Information System (INIS)

    Divakaran, P.P.

    1976-01-01

    An overview of the current state of knowledge on lepton-lepton and lepton-hadron interactions, both electromagnetic and weak, is presented. The presentation includes an account of earlier developments in the area, the experimental information, theoretical insights and the more recent discoveries. Universality in weak interactions, broken gauge symmetry, Weinberg-Salam model and problems in renormalization are discussed. The dilepton events at CERN and Gargamelle, the Kolar events and the SLAC events are described. The anomalous event observed at Kolar has imposed a need to have a fresh look at the lepton interaction and theoretical interpretations are in progress. (A.K.)

  15. New results in high-energy physics

    International Nuclear Information System (INIS)

    Bohm, G.

    1986-01-01

    Recent results are presented in a simple manner in the field of high energy physics starting with characteristics and properties of elementary particles and their basic types of interaction. The substructure of hadrons is interpreted with reference to the quark model. Gauge field theories derived for description of the basic interactions are briefly illustrated (e.g. quantum electrodynamics and quantum chromodynamics as theories of electromagnetic and strong interactions, respectively). Attempts are discussed to unify all basic interactions in one field theory. Thus, the Weinberg-Salam-Model has been created as generalized unified theory of weak and electromagnetic interactions

  16. Fermion condensates and weak symmetry breaking in a superstring-based model

    International Nuclear Information System (INIS)

    Mahapatra, S.; Misra, S.P.

    1986-01-01

    We start with the gauge group SU(3)/sub C/ x SU(2)/sub L/ x U(1)/sub R/ x U(1)/sub N/ (equivalentG 3211 ), which is a rank-five subgroup of E 6 . We include chiral-fermion-condensate terms in the effective four-dimensional Lagrangian derived from superstrings and discuss how this condensation can be responsible for weak symmetry breaking at a scale of 100 GeV. One experimental effect of the above will be the nonobservation of light Higgs scalars of the Salam-Weinberg model, although the other results of the same remain unchanged

  17. Elemental analysis of traditional medicinal seeds by instrumental neutron activation analysis

    International Nuclear Information System (INIS)

    Khaled, S.; Mouzai, M.; Ararem, A.; Hamidatou, L.; Zouranen, B.

    2009-01-01

    Traditional medicinal seeds prescribed for specific treatment purposes, were purchased from local markets and analyzed by INAA. The samples were irradiated at Es-Salam research reactor, at a power of 5 MWfor 6 h. The accuracy of the method was established by analyzing reference materials. Twenty elements were measured, with good accuracy and reproducibility. The concentration of elements determined, was found to vary depending on the seeds. The daily intake of essential and toxic elements was determined, and compared with the recommended values. The probable cumulative intake of toxic elements is well below the tolerance limits. (author)

  18. Electro-weak theory

    International Nuclear Information System (INIS)

    Deshpande, N.G.

    1980-01-01

    By electro-weak theory is meant the unified field theory that describes both weak and electro-magnetic interactions. The development of a unified electro-weak theory is certainly the most dramatic achievement in theoretical physics to occur in the second half of this century. It puts weak interactions on the same sound theoretical footing as quantum elecrodynamics. Many theorists have contributed to this development, which culminated in the works of Glashow, Weinberg and Salam, who were jointly awarded the 1979 Nobel Prize in physics. Some of the important ideas that contributed to this development are the theory of beta decay formulated by Fermi, Parity violation suggested by Lee and Yang, and incorporated into immensely successful V-A theory of weak interactions by Sudarshan and Marshak. At the same time ideas of gauge invariance were applied to weak interaction by Schwinger, Bludman and Glashow. Weinberg and Salam then went one step further and wrote a theory that is renormalizable, i.e., all higher order corrections are finite, no mean feat for a quantum field theory. The theory had to await the development of the quark model of hadrons for its completion. A description of the electro-weak theory is given

  19. The origin of chirality in protein amino acids

    International Nuclear Information System (INIS)

    Chela Flores, J.

    1994-03-01

    We discuss the origin of the chirality of protein amino acids from the point of view of a phase transition from a racemic mixture into an optically pure state. We assume that Bose-Einstein condensation may act as an amplification mechanism. The originals theory is due to Salam. We suggest a new role for the phase transition. Following Quack we distinguish parity violation of two kinds (de facto and de lege symmetry breaking). While the Salam phase transition corresponds to parity violation of the second kind (de lege), the phase transition we discuss in this work corresponds to parity violation of what we may call a third kind. This is suggested by recent experimental phenomena which correlate chiral symmetry breaking and pattern formation (spontaneous symmetry breaking that separates an initial racemic mixture into right- and left-handed space domains by means of a substrate). Tentative comments are given on the eventual design of possible experiments that may test this new hypothesis. (author). Refs

  20. Warped Brane Worlds in Six Dimensional Supergravity

    CERN Document Server

    Aghababaie, Y; Cline, J M; Firouzjahi, H; Parameswaran, S L; Quevedo, Fernando; Tasinato, G; Zavala, I

    2003-01-01

    We present warped compactification solutions of six-dimensional supergravity, which are generalizations of the Randall-Sundrum warped brane world to codimension two and to a supersymmetric context. In these solutions the dilaton varies over the extra dimensions, and this makes the electroweak hierarchy only power-law sensitive to the proper radius of the extra dimensions (as opposed to being exponentially sensitive as in the RS model). Warping changes the phenomenology of these models because the Kaluza-Klein gap can be much larger than the internal space's inverse proper radius. We provide examples both for Romans' nonchiral supergravity and Salam-Sezgin chiral supergravity, and in both cases the solutions break all of the supersymmetries of the models. We interpret the solution as describing the fields sourced by a 3-brane and a boundary 4-brane (Romans' supergravity) or by one or two 3-branes (Salam-Sezgin supergravity), and we identify the topological constraints which are required by this interpretation....

  1. Three-Family Particle Physics Models from Global F-theory Compactifications

    CERN Document Server

    Cvetic, Mirjam; Peña, Damián Kaloni Mayorga; Oehlmann, Paul-Konstantin; Reuter, Jonas

    2015-01-01

    We construct four-dimensional, globally consistent F-theory models with three chiral generations, whose gauge group and matter representations coincide with those of the Minimal Supersymmetric Standard Model, the Pati-Salam Model and the Trinification Model. These models result from compactification on toric hypersurface fibrations $X$ with the choice of base $\\mathbb{P}^3$. We observe that the F-theory conditions on the $G_4$-flux restrict the number of families to be at least three. We comment on the phenomenology of the models, and for Pati-Salam and Trinification models discuss the Higgsing to the Standard Model. A central point of this work is the construction of globally consistent $G_4$-flux. For this purpose we compute the vertical cohomology $H_V^{(2,2)}(X)$ in each case and solve the conditions imposed by matching the M- and F-theoretical 3D Chern-Simons terms. We explicitly check that the expressions found for the $G_4$-flux allow for a cancelation of D3-brane tadpoles. We also use the integrality ...

  2. Investigation and conformational analysis of fluorinated nucleoside antibiotics targeting siderophore biosynthesis.

    Science.gov (United States)

    Dawadi, Surendra; Viswanathan, Kishore; Boshoff, Helena I; Barry, Clifton E; Aldrich, Courtney C

    2015-05-15

    Antibiotic resistance represents one of the greatest threats to public health. The adenylation inhibitor 5'-O-[N-(salicyl)sulfamoyl]adenosine (SAL-AMS) is the archetype for a new class of nucleoside antibiotics that target iron acquisition in pathogenic microorganisms and is especially effective against Mycobacterium tuberculosis, the causative agent of tuberculosis. Strategic incorporation of fluorine at the 2' and 3' positions of the nucleoside was performed by direct fluorination to enhance activity and improve drug disposition properties. The resulting SAL-AMS analogues were comprehensively assessed for biochemical potency, whole-cell antitubercular activity, and in vivo pharmacokinetic parameters. Conformational analysis suggested a strong preference of fluorinated sugar rings for either a 2'-endo, 3'-exo (South), or a 3'-endo,2'-exo (North) conformation. The structure-activity relationships revealed a strong conformational bias for the C3'-endo conformation to maintain potent biochemical and whole-cell activity, whereas improved pharmacokinetic properties were associated with the C2'-endo conformation.

  3. Electroweak symmetry breaking: Higgs/whatever

    International Nuclear Information System (INIS)

    Chanowitz, M.S.

    1990-01-01

    In these two lectures the author discusses electroweak symmetry breaking from a general perspective, stressing properties that are model independent and follow just from the assumption that the electroweak interactions are described by a spontaneously broken gauge theory. This means he assumes the Higgs mechanism though not necessarily the existence of Higgs bosons. The first lecture presents the general framework of a spontaneously broken gauge theory: (1) the Higgs mechanism sui generis, with or without Higgs boson(s) and (2) the implications of symmetry and unitarity for the mass scale and interaction strength of the new physics that the Higgs mechanism requires. In addition he reviews a softer theoretical argument based on the naturalness problem which leads to a prejudice against Higgs bosons unless they are supersymmetric. This is a prejudice, not a theorem, and it could be overturned in the future by a clever new idea. In the second lecture he illustrates the general framework by reviewing some specific models: (1) the Weinberg-Salam model of the Higgs sector; (2) the minimal supersymmetric extension of the Weinberg-Salam model; and (3) technicolor as an example of the Higgs mechanism without Higgs bosons. He concludes the second lecture with a discussion of strong WW scattering that must occur if L SB lives above 1 TeV. In particular he describes some of the experimental signals and backgrounds at the SSC. 57 refs., 12 figs

  4. Search for the decay B^0_sarrow e μ at CDF

    Science.gov (United States)

    Wenzel, Hans; Maeshima, Kaori

    1996-05-01

    We present a search for the decay B^0_sarrow e μ. This decay is strictly forbidden within the standard model of electroweak interaction. However, extensions to the standard model exist which predict a symmetry between quarks and leptons and one of the signals predicted by these models is the decay B^0_sarrow e μ. An example of such model is the Pati-Salam model. We present the first limit on Br(B^0_sarrow e μ). From this limit we derive a mass limit on the Pati-Salam leptoquark mass. ^ Supported by U.S. DOE DE-AC03-76SF00098. ^ Supported by U.S. DOE DE-AC02-76CHO3000. ^*We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions. This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Science and Culture of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; and the A. P. Sloan Foundation.

  5. Detailed examination of 'standard elementary particle theories' based on measurement with Tristan

    International Nuclear Information System (INIS)

    Kamae, Tsuneyoshi

    1989-01-01

    The report discusses possible approaches to detailed analysis of 'standard elementary particle theories' on the basis of measurements made with Tristan. The first section of the report addresses major elementary particles involved in the 'standard theories'. The nature of the gauge particles, leptons, quarks and Higgs particle are briefly outlined. The Higgs particle and top quark have not been discovered, though the Higgs particle is essential in the Weiberg-Salam theory. Another important issue in this field is the cause of the collapse of the CP symmetry. The second section deals with problems which arise in universalizing the concept of the 'standard theories'. What are required to solve these problems include the discovery of supersymmetric particles, discovery of conflicts in the 'standard theories', and accurate determination of fundamental constants used in the 'standard theories' by various different methods. The third and fourth sections address the Weinberg-Salam theory and quantum chromodynamics (QCD). There are four essential parameters for the 'standard theories', three of which are associated with the W-S theory. The mass of the W and Z bosons measured in proton-antiproton collision experiments is compared with that determined by applying the W-S theory to electron-positron experiments. For QCD, it is essential to determine the lambda constant. (N.K.)

  6. Proposal for the establishment of an International Centre for Resource Management (ICRM)

    International Nuclear Information System (INIS)

    Islam, S.

    1999-01-01

    Energy and physical resources are necessary for development. These resources are not scarce. What is scarce is Technology. Technology is not only machines, it is also knowledge to run these machines. Most of the developing countries waste whatever resources they do have because of a lack of scientists, technologists and modern management. The main reason for underdevelopment of the poor countries is their weak linkage to modern science and technology. The scientists in the developing countries are isolated. Science cannot survive, let alone flourish, in isolation. The International Centre for Theoretical Physics in Trieste, Italy (ICTP) was established to end scientific isolation and to stop brain drain. The centre was established in 1964 under the auspices of the International Atomic Energy Agency (IAEA). Now the centre's Management is run by the United Nations Educational, Scientific and Cultural Organization (UNESCO), ICTP in Trieste started in 1964 with a budget of US$ 355,000. The building was donated by the Government of Italy. Now its budget is about US$ 20 million (90 per cent from Italy). About 4,000 scientists visit the centre every year. Since its establishment about 40,000 scientists from developing countries and 20,000 from developed countries have visited ICTP. The principal purpose of the proposed International Centre for Resource Management will be to foster through seminars, conferences, teaching and research the advancement of better resource utilization and environmental protection in the less developed countries. An international teaching and research institute dealing in energy policy, research and project management, electronic communication, hydrology, water resource management, soil science, climatology, meteorology, oceanography and desertification will provide the developing countries with expertise needed for successful development policy. Since it happens that the major advance in these fields have relevance for development, aid giving

  7. 9th International Symposium on Ultrafast Processes in Spectroscopy

    CERN Document Server

    Silvestri, S; Denardo, G

    1996-01-01

    This volume is a collection of papers presented at the Ninth International Symposium on "Ultrafast Processes in Spectroscopy" (UPS '95) held at the International Centre for Theo­ retical Physics (ICTP), Trieste (Italy), October 30 -November 3, 1995. These meetings have become recognized as the major forum in Europe for discussion of new work in this rapidly moving field. The UPS'95 Conference in Trieste brought together a multidisciplinary group of researchers sharing common interests in the generation of ultrashort optical pulses and their application to studies of ultrafast phenomena in physics, chemistry, material science, electronics, and biology. It was attended by approximately 250 participants from 20 countries and the five-day program comprises more than 200 papers. The progress of both technology and applications in the field of ultrafast processes during these last years is truly remarkable. The advent of all solid state femtosecond lasers and the extension of laser wavelengths by frequency convers...

  8. The XXVIII International Symposium on Lattice Field Theory

    Science.gov (United States)

    Lattice 2010, the XXVIII International Symposium on Lattice Field Theory, was held from June 14-19, 2010 at the ATAHOTEL Tanka Village Resort, Villasimius, Sardinia, Italy. The scientific programme contained 21 plenary session talks and over 300 parallel session contributions (talks and posters). The conference topics included: algorithms and machines, applications beyond QCD, chiral symmetry, hadron spectroscopy, hadronic structure and interactions, nonzero temperature and density, standard-model parameters and renormalization, theoretical developments, vacuum structure and confinement, weak decays and matrix elements. We would like to thank the members of International Advisory Committee for their help in planning the scientific programme. Thanks also go to all the speakers and delegates who helped to make the conference a big success. We acknowledge financial support from ICTP, INFN, the European Physical Journal, the European Community-Research Infrastructure Activity ``Hadron Physics 2", and the University of Rome ``Tor Vergata".

  9. Collagen turnover after tibial fractures

    DEFF Research Database (Denmark)

    Joerring, S; Krogsgaard, M; Wilbek, H

    1994-01-01

    Collagen turnover after tibial fractures was examined in 16 patients with fracture of the tibial diaphysis and in 8 patients with fracture in the tibial condyle area by measuring sequential changes in serological markers of turnover of types I and III collagen for up to 26 weeks after fracture....... The markers were the carboxy-terminal extension peptide of type I procollagen (PICP), the amino-terminal extension peptide of type III procollagen (PIIINP), and the pyridinoline cross-linked carboxy-terminal telopeptide of type I collagen (ICTP). The latter is a new serum marker of degradation of type I...... collagen. A group comparison showed characteristic sequential changes in the turnover of types I and III collagen in fractures of the tibial diaphysis and tibial condyles. The turnover of type III collagen reached a maximum after 2 weeks in both groups. The synthesis of type I collagen reached a maximum...

  10. Nuclear desalination newsletter, No. 1, September 2009

    International Nuclear Information System (INIS)

    2009-09-01

    This issue discusses the recent IAEA and Member States activities in the field of desalination. Reports about these activities in Algeria, China, Germany, India, Cuba, France, Indonesia, Kuwait, Libya, South Africa, Morocco, Saudi Arabia, Spain and USA are given. The new version of the DEEP software - DEEP 3.2 - is presented. A newly developed toolkit on nuclear desalination is also presented. The ongoing IAEA activities include organization and participation in meetings on nuclear desalination, or related topics, like Technical Meeting on Non Electric Applications, held in Daejeon, Rep. of Korea, 3-6 March 2009; Management of Water Use and Consumption in Water Cooled Nuclear Power; Joint ICTP/IAEA Training Workshop on Technology and Performance of Desalination Systems; Advances in Nuclear Power for Process Heat Applications. The plans for future activities and meetings are also presented

  11. Immune thrombocytopenia is associated with persistently deranged fibrosis-related seromarker profiles but low bone marrow fibrosis grades

    DEFF Research Database (Denmark)

    Ghanima, Waleed; Boiocchi, Leonardo; Lee, Christina S.

    2018-01-01

    Bone marrow (BM) fibrosis is a potential side effect of thrombopoietin receptor agonist (TPO-RA) treatment. We aimed to investigate stromal seromarker profiles and growth factors in order to elucidate pathogenic and dynamic aspects of immune thrombocytopenia (ITP)-related BM fibrosis before...... and during TPO-RA treatment. Connective tissue metabolites [procollagen I and III peptides (PINP/PIIINP); hyaluronan (HYA), C-terminal-telopeptide (ICTP), and fibrosis-related growth factors (transforming growth factor-beta (TGF-beta), HGF, basic fibroblast growth factor)] were measured in blood samples...... acquired before initiation of TPO-RA and subsequently at 6-month intervals for up to 2 years. BM fibrosis was graded MF-0 in 8 (18%), MF-1 30 (65%), and MF-2 8 (18%) in the last available BM biopsy. In the 21 patients having more than one biopsy, the grade of fibrosis from the first to the last available...

  12. Planck 2010

    CERN Multimedia

    CERN. Geneva; Grojean, Christophe

    2010-01-01

    Planck 2010 From the Planck Scale to the ElectroWeak Scale The conference will be the twelfth one in a series of meetings on physics beyond the Standard Model, organized jointly by several European groups: Bonn, CERN, Ecole Polytechnique, ICTP, Madrid, Oxford, Padua, Pisa, SISSA and Warsaw as part of activities in the framework of the European network UNILHC.Topics to be discussed: Supersymmetry Supergravity & string phenomenology Extra dimensions Electroweak symmetry breaking LHC and Tevatron Physics Collider physics Flavor & neutrinos physics Astroparticle & cosmology Gravity & holography Strongly coupled physics & CFT Registration: registration will be open until May 1st. Registration fees amount to 150 CHF and cover the cost of the coffee breaks and the social dinner. Payment has to be made online. The deadline for registration has been postponed to May 7th. However, after May 3th, we shall not accept any talk reques...

  13. Experiments with general purpose visualization software on a unix workstation

    International Nuclear Information System (INIS)

    Adam, G.

    1995-10-01

    A study was performed on the opportunity of buying, for the ICTP use, one of the following visualization systems: Advanced Visualization Systems (AVS) - release 5.02 IRIS Explorer - release 2.2 from NAG IBM Data Explorer (DX) - release 2.1.5 Khoros - Developer's Release 2.0+p2. Criteria for an optimal choice were defined and it was concluded that none of these visualization systems would be a good today compromise. Conservative consideration of the market opportunities shows that substantially improved releases of these systems are expected to be operational within at most an year. For short term period, the ratio benefit to burden still makes public domain low-end graphics attractive. (author)

  14. ATLAS virtual visit features Birzeit University, first university in Palestine and a member of the International Association of Universities since 1977.

    CERN Multimedia

    claudia marcelloni

    2012-01-01

    This ATLAS virtual visit features Birzeit University, first university in Palestine and a member of the International Association of Universities since 1977. As part of the "Physics Without Frontiers" project, funded by the International Centre for Theoretical Physics (ICTP), Birzeit is hosting a one day particle physics masterclass. During the day the physics major students are given an introduction to experimental particle physics, the LHC and the ATLAS Experiment, before having the chance to analyze real LHC data. This virtual visit comprises of a live tour around the ATLAS control room and the opportunity to ask questions to the ATLAS physicists. The Department of Physics at Birzeit University provides an exciting environment for the training of both graduate and undergraduate students. Some of the Physics department graduates participated in the CERN Summer Program over the past few years.

  15. Time pattern of exercise-induced changes in type I collagen turnover after prolonged endurance exercise in humans

    DEFF Research Database (Denmark)

    Langberg, Henning; Skovgaard, D; Asp, S

    2000-01-01

    Type I collagen is known to adapt to physical activity, and biomarkers of collagen turnover indicate that synthesis can be influenced by a single intense exercise bout, but the exact time pattern of these latter changes are largely undescribed. In the present study, 17 healthy young males had...... after exercise, collagen resorption did not change from basal levels throughout the remaining period (P > 0.05). Muscle breakdown was elevated during the days following the exercise and peaked 24 hours after the exercise (S-CK concentration: 3,133 +/- 579 U/liter). The findings in the present study...... their plasma concentrations of the carboxyterminal propeptide of type I procollagen (PICP), a marker of collagen formation, and the immunoactive carboxyterminal cross-linked telopeptide (ICTP), a marker of collagen resorption, measured before and immediately postexercise, as well as 1, 2, 3, 4, 5, and 6 days...

  16. International Centre for Theoretical Physics, Trieste. Scientific activities in 1994

    International Nuclear Information System (INIS)

    1995-10-01

    This publication gives a comprehensive overview of the scientific activities during 1994 of the International Centre for Theoretical Physics, Trieste. In particular, it gives (i) a summary of these activities accompanied by statistical data (comparison with 1993, participation by geographical area, breakdown by field of activity, activities held at and outside the ICTP, and participation by activity); (ii) an overview of the scientific programme (fundamental physics, condensed matter physics, mathematics, physics and energy, physics and the environment, physics of the living state, applied physics, diploma courses, and other research) while listing long-term visitors, networks of associate members and federal institutes, training and research at Italian laboratories, external activities, science, the high technology and development programme, the books and equipment programme, award; (iii) a list of publications, and (iv) a list of scientific support services

  17. The times of Albert Einstein

    International Nuclear Information System (INIS)

    Ahmad, S.M.W.

    1990-09-01

    ''The life of Albert Einstein has a dramatic quality that does not rest exclusively on his theory of relativity. The extravagant timing of history linked him with three shattering developments of the twentieth century: the rise and fall of Nazi Germany, the birth of nuclear weapons, and the birth of zionism (and Israel). Their impact on Einstein's genius combined to drive him into a contact with the affairs of the world for which Einstein had little taste''. This article is the result of my lecture delivered at ICTP on 17 August, 1990 before a knowledgable audience that included scientists from many countries including the third world countries. This one and half hour lecture was organised by Dr. A.M. Hamende and Dr. H.R. Dalafi. 10 refs

  18. A Terrella Device for Simulating Aurora-Like Phenomena in a Box

    Science.gov (United States)

    Messerotti, M.; Baccomi, R.; Iugovaz, D.; Lilensten, J.

    2009-04-01

    A Terrella device was developed and setup in Trieste in 2006 to be used as an experimental training device during practicum sessions of the Advanced International School on Space Weather at ICTP. The Terrella consisted of a vacuum chamber, where an aluminum sphere with an embedded permanent magnet bar mimics the Earth (Terrella) and its magnetic field, and a system of electrodes is set to a high potential difference to generate an electron flow (particle wind) that ionizes the residual air around the sphere. This results in aurora-like glowing patterns whose geometry is dependent on the orientation and distance of the bar magnet, so that various configurations can be experimented. This Terrella device proved to be an effective tool not only for academic but also for outreach purposes. We will briefly present both applications, focusing in particular on the latter, and on the planned use for IHY EPO activities.

  19. The fourth edition of the ASP took place in Kigali

    CERN Document Server

    CERN Bulletin

    2016-01-01

    The fourth biennial African School of Fundamental Physics and Applications (ASP) took place on 1-19 August in Africa’s cleanest city, Kigali in Rwanda.   The students of the fourth African School of Fundamental Physics and Applications pose for the traditional conference group picture. Many lecturers flew in from CERN to give lectures and mentor students. (Photo: Gilbert Tekoute) Seventy-five students from around the African continent, chosen from 439 applicants, were hosted in the University of Rwanda’s College of Sciences and Technology for about 3 weeks. The school received financial support from CERN and 19 other institutions in total, including the International Centre for Theoretical Physics (ICTP), Brookhaven National Laboratory, the South African National Research Foundation and Department of Technology, the Rwandan Ministry of Education, INFN, and other major particle physics laboratories, as well as governmental institutions in Africa, Europe and the United States....

  20. Eccentric rehabilitation exercise increases peritendinous type I collagen synthesis in humans with Achilles tendinosis

    DEFF Research Database (Denmark)

    Langberg, Henning; Ellingsgaard, H; Madsen, T

    2007-01-01

    on elite soccer players suffering from chronic Achilles tendinosis on the turnover of the peritendinous connective tissue. Twelve elite male soccer players, of whom six suffered from unilateral tendinosis and six were healthy controls, participated in this study. All participants performed 12 weeks...... of heavy-resistance eccentric training apart from their regular training and soccer activity. Before and after the training period the tissue concentration of indicators of collagen turnover was measured by the use of the microdialysis technique. After training, collagen synthesis was increased...... in the initially injured tendon (n=6; carboxyterminal propeptide of type I collagen (PICP): pre 3.9+/-2.5 microg/L to post 19.7+/-5.4 microg/L, P0.05). Collagen degradation, measured as carboxyterminal telopeptide region of type I collagen (ICTP), was not affected by training neither in the injured nor...

  1. The growth hormone/insulin-like growth factor-I axis hormones and bone markers in elite athletes in response to a maximum exercise test

    DEFF Research Database (Denmark)

    Ehrnborg, C; Lange, K H W; Dall, R

    2003-01-01

    and bone markers at specific time points are presented. Most of the variables correlated negatively with age. In summary, the maximum exercise test showed a rather uniform pattern, with peak concentrations of the GH/IGF-I axis hormones and the bone markers ICTP and P-III-P immediately after exercise......The aim of the GH-2000 project is to develop a method for detecting GH doping among athletes. Previous papers in the GH-2000 project have proposed that a forthcoming method to detect GH doping will need specific components from the GH/IGF-I axis and bone markers because these specific variables......-53 yr) from Denmark, the United Kingdom, Italy, and Sweden participated in the study. The serum concentrations of total GH, GH22 kDa, IGF-I, IGF binding protein (IGFBP)-2, IGFBP-3, acid-labile subunit, procollagen type III (P-III-P), and the bone markers osteocalcin, carboxy-terminal cross...

  2. Research and Development Program in Reactor Diagnostics and Monitoring with Neutron Noise Methods. Stages 14 and 15

    International Nuclear Information System (INIS)

    Pazsit, Imre; Wihlstrand, Gustav; Tambouratzis, Tatiana; Jonsson, Anders; Dahl, Berit

    2009-12-01

    This report constitutes Stages 14 and 15 of a long-term research and development program concerning the development of diagnostics and monitoring methods for nuclear reactors. Stage 14 was a full one-year project, whereas Stage 15 consisted of a half-year project. The program executed in Stages 14 and 15 consists of the following three parts: - Study of criticality, neutron kinetics and neutron noise in molten salt reactors (MSR) (Stages 14 and 15); - An overview and introduction to fuzzy logics (Stage 14), and an application to two-phase flow identification (Stage 15) - Preparations for and execution of an IAEA-ICTP workshop on Neutron fluctuations, reactor noise and their applications in nuclear reactors (Stage 14)

  3. Excellence in Physics Education Award Talk: Sharing Active Learning Strategies in the Developed and Developing Worlds

    Science.gov (United States)

    Sokoloff, David

    2010-02-01

    Since the first series of National Microcomputer Based Laboratory (MBL) Institutes for Teachers of Physics in Summer, 1987, the Activity Based Physics Group (ABP) has presented numerous professional development institutes and workshops to thousands of high school, college and university faculty, sponsored by National Science Foundation, U.S. Department of Education, Howard Hughes Medical Institute and others. An overview of these programs and details of our instructional strategies will be presented. Some common features of these include: (1) motivating participants through introduction to active learning research literature, including exposure to conceptual evaluations and student learning gains in traditional and active learning courses, (2) exposing participants to active learning strategies through intensive hands-on work using classroom tested curricular materials, (3) relying on these materials to enhance teacher knowledge and correct misconceptions---when necessary, (4) providing opportunities to practice active learning instruction with other participants and (5) distributing or facilitating procurement of equipment and supplies needed to get started. Recently, ABP group members have been working with physics educators from other countries to introduce active learning strategies in the developing world. New programs such as Active Learning in Optics and Photonics (ALOP, UNESCO) and Physware (ICTP/UNESCO/IUPAP), that support active learning using low-cost equipment, have been developed for this purpose. To date, ALOP workshops have been presented to over 500 secondary and college faculty in Ghana, Tunisia, Morocco, India, Tanzania, Brazil, Mexico, Zambia, Cameroon, Colombia, Nepal and Chile, and the ALOP Training Manual has been translated into French and Spanish. The first Physware workshop, held at ICTP in Trieste in 2009, had 32 participants most of whom were from developing countries in Africa, Asia and South America. These programs will be described. )

  4. Effect of ONO-5334 on bone mineral density and biochemical markers of bone turnover in postmenopausal osteoporosis: 2-year results from the OCEAN study.

    Science.gov (United States)

    Eastell, Richard; Nagase, Shinichi; Small, Maria; Boonen, Steven; Spector, Tim; Ohyama, Michiyo; Kuwayama, Tomohiro; Deacon, Steve

    2014-02-01

    Cathepsin K inhibitors, such as ONO-5334, are being developed for the treatment of postmenopausal osteoporosis. However, their relative effects on bone resorption and formation, and how quickly the effects resolve after treatment cessation, are uncertain. The aim of this study was to examine the efficacy and safety of 24-month treatment with ONO-5334 and to assess the effect of treatment cessation over 2 months. We studied 197 postmenopausal women with osteoporosis or osteopenia with one fragility fracture. Patients were randomized to ONO-5334 50 mg twice daily, 100 mg or 300 mg once daily, alendronate 70 mg once weekly (positive control), or placebo for 24 months. After 24 months, all ONO-5334 doses were associated with increased bone mineral density (BMD) for lumbar spine, total hip, and femoral neck (p < 0.001). ONO-5334 300 mg significantly suppressed the bone-resorption markers urinary (u) NTX and serum and uCTX-I throughout 24 months of treatment and to a similar extent as alendronate; other resorption marker levels remained similar to placebo (fDPD for ONO-5334 300 mg qd) or were increased (ICTP, TRAP5b, all ONO-5334 doses). Levels of B-ALP and PINP were suppressed in all groups (including placebo) for approximately 6 months but then increased for ONO-5334 to close to baseline levels by 12 to 24 months. On treatment cessation, there were increases above baseline in uCTX-I, uNTX, and TRAP5b, and decreases in ICTP and fDPD. There were no clinically relevant safety concerns. Cathepsin K inhibition with ONO-5334 resulted in decreases in most resorption markers over 2 years but did not decrease most bone formation markers. This was associated with an increase in BMD; the effect on biochemical markers was rapidly reversible on treatment cessation. © 2014 American Society for Bone and Mineral Research.

  5. Osteopenia in anorexia nervosa: specific mechanisms of bone loss.

    Science.gov (United States)

    Lennkh, C; de Zwaan, M; Bailer, U; Strnad, A; Nagy, C; el-Giamal, N; Wiesnagrotzki, S; Vytiska, E; Huber, J; Kasper, S

    1999-01-01

    Osteopenia is a well recognized medical complication of anorexia nervosa (AN). The mechanism of bone loss is not fully understood and there is uncertainty about its management. New markers of bone turnover have been developed. C-terminal type 1 propeptide (PICP) is a measure of bone formation and urinary pyridinolines such as deoxypyridinoline (DPYRX) and serum carboxyterminal crosslinked telopeptide (ICTP) are markers of bone resorption. The aim of this study was to examine these bone markers in patients with AN. Twenty female patients with AN and 12 healthy controls were included in the study. Bone mineral density (BMD) of AN patients was measured by dual energy X-ray absorptiometry (DEXA). Lumbar bone density was significantly reduced in the AN group compared to standardised values of thirty year old adults (t-score 83.2%, S.D. 12.1). Femoral neck bone density showed an even greater reduction (t-score 79.4%, S.D. 13.5). We found a significant negative correlation between femoral BMD and the duration of the illness. Femoral BMD correlated significantly with minimal body weight (r(16) = 0.504, p = 0.033). The markers of bone resorption were significantly higher in the patients with AN compared to the values of the control group (ICTP t(30) = -2.15, p = 0.04, DPYRX t(25) = -2.26, p = 0.033), whereas the markers of bone formation did not differ significantly between the groups. AN appears to be a low turn over state associated with increased bone resorption without concomitant bone formation. This pattern differs from osteopenia in menopausal women and should, therefore, lead to the development of specific therapeutic strategies in AN associated osteopenia. Hormone replacement therapy as well as calcium and vitamine D-supplementation are so far discussed controversially. Long-term treatment studies are warranted.

  6. WE-E-19A-01: Globalization of Medical Physics

    Energy Technology Data Exchange (ETDEWEB)

    Rehani, M; Meghzifene, A [International Atomic Energy Agency, Vienna (Austria); Tsapaki, V [EFOMP/IOMP (United Kingdom); Padovani, R [EFOMP (United Kingdom); Pipman, Y [Forest Hills, NY (United States); Lief, E [Marsden Medical Physics Associates, Pelham, NY (United States)

    2014-06-15

    Following successful 2012–2013 International Professional Symposiums as a part of Annual AAPM meetings, representatives of AAPM and International Organization of Medical Physics (IOMP) suggested to make this tradiational Symposium a permanent part of Annual AAPM meetings in future. Following the tradition, this session includes presentations of representatives of AAPM, IOMP, European Federation of Medical Physics (EFOMP), International Atomic Energy Agency (IAEA) and International Center for Theoretical Physics (ICTP). The speakers will cover various aspects of International collaboration such as educational, professional, and scientific issues, as well as help to developing countries. With further developments of medicine and technology and increased communication with our colleagues overseas, Medical Physics becomes more and more global profession. Use of the same technology, significant progress in medical physics research and developing practical regulations worldwide makes it increasingly useful to organize global collaboration of medical physicists. Several international organizations are tasked to promote such collaboration and provide help to developing countries. Not all AAPM members are fully aware of these international efforts. It is very useful for medical physicists to know about success of our profession in other countries. Different schools present different approaches to the same problem, which allows to find the best solution. By communicating with colleagues overseas, one can learn more than from just reading scientific publications. At this session the attendees will receive a glimpse of International Medical Physics activities. Learning Objectives: Understand the globalization of Medical Physics profession and advantages of collaboration with foreign colleagues. See what role AAPM is playing in establishing contacts with colleagues overseas. Understand the role of IOMP and main directions of its activity. Learn about IAEA and how it helps

  7. Bones and Crohn's: Estradiol deficiency in men with Crohn's disease is not associated with reduced bone mineral density

    Directory of Open Access Journals (Sweden)

    Boehm BO

    2008-10-01

    Full Text Available Abstract Background Reduced bone mineral density (BMD and osteoporosis are frequent in Crohn's disease (CD, but the underlying mechanisms are still not fully understood. Deficiency of sex steroids, especially estradiol (E2, is an established risk factor in postmenopausal osteoporosis. Aim To assess if hormonal deficiencies in male CD patients are frequent we investigated both, sex steroids, bone density and bone metabolism markers. Methods 111 male CD patients underwent osteodensitometry (DXA of the spine (L1–L4. Disease related data were recorded. Disease activity was estimated using Crohn's disease activity index (CDAI. Testosterone (T, dihydrotestosterone (DHT, estradiol (E2, sex hormone binding globulin (SHBG, Osteocalcin and carboxyterminal cross-linked telopeptids (ICTP were measured in 111 patients and 99 age-matched controls. Results Patients had lower T, E2 and SHBG serum levels (p 10 g had lower BMD. 32 (28.8% patients showed osteoporosis, 55 (49.5% osteopenia and 24 (21.6% had normal BMD. Patients with normal or decreased BMD showed no significant difference in their hormonal status. No correlation between markers of bone turnover and sex steroids could be found. ICTP was increased in CD patients (p Conclusion We found an altered hormonal status – i.e. E2 and, to a lesser extent T deficiency – in male CD patients but failed to show an association to bone density or markers of bone turnover. The role of E2 in the negative skeletal balance in males with CD, analogous to E2 deficiency in postmenopausal females, deserves further attention.

  8. Ultrasound assessment of mitral annular displacement in patients with coronary heart disease and its correlation with left heart function and serum indexes

    Directory of Open Access Journals (Sweden)

    Bing-Yan Lai

    2016-10-01

    Full Text Available Objective: To analyze the ultrasound assessment of mitral annular displacement in patients with coronary heart disease and its correlation with left heart function and serum indexes. Methods: A total of 89 patients with coronary heart disease were divided into angina pectoris group 42 cases and myocardial infarction group 47 cases according to the illness, and 58 cases of healthy subjects were included in control group. Values of mitral annular displacement (MAD parameters, left heart function indexes and serum illness-related indexes of three groups were detected, and the correlation between values of MAD parameters and values of cardiac function indexes and serum illness-related indexes were further analyzed. Results: MAD parameters TMAD1, TMAD2 and TMADmid values, heart function LVEF values and serum CysC level of myocardial infarction group and angina pectoris group were lower than those of control group, and cardiac function LVEDD, LVESD and A/E values as well as serum H-FABP, ICTP, Hcy and vWF levels were higher than those of control group (P<0.05; MAD parameters TMAD1, TMAD2 and TMADmid values of patients with coronary heart disease were negatively correlated with LVEDD, LVESD and A/E values as well as H-FABP, ICTP, Hcy and vWF levels, and were positively correlated with LVEF value and CysC level (P<0.05. Conclusions: Ultrasound assessment of mitral annular displacement in patients with coronary heart disease can early diagnose coronary heart disease and judge the disease severity, and it plays a positive role in optimizing disease prognosis.

  9. WE-E-19A-01: Globalization of Medical Physics

    International Nuclear Information System (INIS)

    Rehani, M; Meghzifene, A; Tsapaki, V; Padovani, R; Pipman, Y; Lief, E

    2014-01-01

    Following successful 2012–2013 International Professional Symposiums as a part of Annual AAPM meetings, representatives of AAPM and International Organization of Medical Physics (IOMP) suggested to make this tradiational Symposium a permanent part of Annual AAPM meetings in future. Following the tradition, this session includes presentations of representatives of AAPM, IOMP, European Federation of Medical Physics (EFOMP), International Atomic Energy Agency (IAEA) and International Center for Theoretical Physics (ICTP). The speakers will cover various aspects of International collaboration such as educational, professional, and scientific issues, as well as help to developing countries. With further developments of medicine and technology and increased communication with our colleagues overseas, Medical Physics becomes more and more global profession. Use of the same technology, significant progress in medical physics research and developing practical regulations worldwide makes it increasingly useful to organize global collaboration of medical physicists. Several international organizations are tasked to promote such collaboration and provide help to developing countries. Not all AAPM members are fully aware of these international efforts. It is very useful for medical physicists to know about success of our profession in other countries. Different schools present different approaches to the same problem, which allows to find the best solution. By communicating with colleagues overseas, one can learn more than from just reading scientific publications. At this session the attendees will receive a glimpse of International Medical Physics activities. Learning Objectives: Understand the globalization of Medical Physics profession and advantages of collaboration with foreign colleagues. See what role AAPM is playing in establishing contacts with colleagues overseas. Understand the role of IOMP and main directions of its activity. Learn about IAEA and how it helps

  10. Interrelationship between bone turnover markers and dietary calcium intake in pregnant women: a longitudinal study.

    Science.gov (United States)

    Zeni, Susana N; Ortela Soler, Carlos R; Lazzari, Araceli; López, Laura; Suarez, Marisa; Di Gregorio, Silvana; Somoza, Julia I; de Portela, Maria L

    2003-10-01

    This longitudinal study evaluated bone turnover and the interrelationship between changes in bone biomarkers and habitual dietary calcium intake during pregnancy in a group of women ranging widely with regard to dietary calcium intake. Thirty-nine healthy pregnant and 30 nonpregnant women were studied. Calcium, phosphorus, 1alpha,25-dihydroxyvitamin D (1,25diHOD), bone alkaline phosphatase (bALP), carboxyterminal propeptides of type I procollagen (PICP) and carboxyterminal telopeptides of type I collagen (betaCTX and ICTP) were measured in serum and calcium, and creatinine and aminoterminal telopeptide (NTX) were determined in urine. Serum calcium and phosphorus did not change but the urinary Ca/Creat ratio and 1,25diHOD increased throughout pregnancy (P NTX >ICTP. Serum 1,25 diHOD versus calcium intake showed a positive and significant correlation (r = 0.51, P < 0.02). A negative correlation between the absolute change in betaCTX, NTX, and b-ALP between the third and second trimester and calcium intake at the end of pregnancy was observed in pregnant women who did not cover adequately calcium intake requirements (r = -0.47, P < 0.03; r = -0.41, P < 0.05; and r = -0.43, P < 0.05, respectively). These results suggest that skeletal response to pregnancy may not be entirely independent of maternal calcium intake, especially in women with usually low calcium intake. In summary, not only hormonal changes in calcium metabolism that occur during pregnancy but also other considerations, such as low dietary calcium intake, may lead to an increment in the biological activity of the skeleton. Additional studies must be conducted to confirm our findings and to gain a better understanding of skeletal response to a low calcium intake during pregnancy.

  11. Long-term effects of intermittent equine parathyroid hormone fragment (ePTH-1-37) administration on bone metabolism in healthy horses.

    Science.gov (United States)

    Weisrock, Katharina U; Winkelsett, Sarah; Martin-Rosset, William; Forssmann, Wolf-Georg; Parvizi, Nahid; Coenen, Manfred; Vervuert, Ingrid

    2011-11-01

    Intermittent administration of parathyroid hormone (PTH) is an anabolic therapy for osteoporotic conditions in humans. This study evaluated the effects of equine PTH fragment (ePTH-1-37) administration on bone metabolism in 12 healthy horses. Six horses each were treated once daily for 120days with subcutaneous injections of 0.5μg/kg ePTH-1-37 or placebo. Blood was collected to determine ionized calcium (Ca(++)), total Ca (Ca(T)), inorganic phosphorus, serum equine osteocalcin (eOC), carboxy-terminal telopeptide of type I collagen (ICTP), bone-specific alkaline phosphatase, and carboxy-terminal cross-linked telopeptide of type I collagen. Bone mineral density (BMD) was determined with dual X-ray absorptiometry of the metacarpus and calcaneus. Significantly higher blood Ca(++) and plasma Ca(T) concentrations were measured 5h after ePTH-1-37 administration compared to placebo. Higher serum eOC concentrations were found for ePTH-1-37 treatment at days 90 (P<0.05) and 120 (P=0.05). Significantly higher serum ICTP levels were observed with ePTH-1-37 treatment at days 60 and 90. For both study groups, BMD increased significantly in the calcaneus. Long-term use of ePTH-1-37 seemed to have no negative effects on bone metabolism in healthy horses. The absence of undesirable side effects is the premise to ensure safety for further clinical investigations in horses with increased bone resorption processes. Copyright © 2011 Elsevier Ltd. All rights reserved.

  12. Early universe cosmology. In supersymmetric extensions of the standard model

    Energy Technology Data Exchange (ETDEWEB)

    Baumann, Jochen Peter

    2012-03-19

    In this thesis we investigate possible connections between cosmological inflation and leptogenesis on the one side and particle physics on the other side. We work in supersymmetric extensions of the Standard Model. A key role is played by the right-handed sneutrino, the superpartner of the right-handed neutrino involved in the type I seesaw mechanism. We study a combined model of inflation and non-thermal leptogenesis that is a simple extension of the Minimal Supersymmetric Standard Model (MSSM) with conserved R-parity, where we add three right-handed neutrino super fields. The inflaton direction is given by the imaginary components of the corresponding scalar component fields, which are protected from the supergravity (SUGRA) {eta}-problem by a shift symmetry in the Kaehler potential. We discuss the model first in a globally supersymmetric (SUSY) and then in a supergravity context and compute the inflationary predictions of the model. We also study reheating and non-thermal leptogenesis in this model. A numerical simulation shows that shortly after the waterfall phase transition that ends inflation, the universe is dominated by right-handed sneutrinos and their out-of-equilibrium decay can produce the desired matter-antimatter asymmetry. Using a simplified time-averaged description, we derive analytical expressions for the model predictions. Combining the results from inflation and leptogenesis allows us to constrain the allowed parameter space from two different directions, with implications for low energy neutrino physics. As a second thread of investigation, we discuss a generalisation of the inflationary model discussed above to include gauge non-singlet fields as inflatons. This is motivated by the fact that in left-right symmetric, supersymmetric Grand Unified Theories (SUSY GUTs), like SUSY Pati-Salam unification or SUSY SO(10) GUTs, the righthanded (s)neutrino is an indispensable ingredient and does not have to be put in by hand as in the MSSM. We discuss

  13. Precision of the ATLAS muon spectrometer

    CERN Document Server

    Woudstra, M J

    2002-01-01

    The 'Standard Model' of elementary particles has been a very successful theory for the last few decades and has met every experimental test. It incorporates the Glashow-Weinberg-Salam theory of electroweak interactions and the quantum chromodynamics theory of the strong interactions, and thereby includes all known forces between elementary particles except gravity. The Standard Model includes the 'Higgs' mechanism to endow the particles with mass. This mechanism, however, requires the existence of the 'Higgs boson'. This is the only particle of the Standard Model that has escaped experimental observation, despite many efforts of the last four decades. Current indirect measurements from the experiments at the LEP accelerator at CERN indicate that the mass of the Standard Model Higgs particle falls in the range 114 - 196 GeV / c2 with a probability of 90%. The LEP accelerator and its detectors are currently being dismantled to be replaced by the more powerful LHC accelerator and its four new experiments (called...

  14. A Precision Measurement of sin$^{2}\\theta$$_{w}$ from Semileptonic Neutrino Scattering

    CERN Document Server

    Wotschack, Jorg

    1987-01-01

    There is considerable interest in measuring the electroweak mixing parameter sin$^{2}\\Theta$$_{w}$, of the Glashow-Salam-Weinberg theory $^{1}$ as precisely as possible: first, its value may be predicted by models of Grand Unification;$^{2}$ second, precise measurements of sin$^{2}\\Theta$$_{w}$ from different processes would test the validity of electroweak radiative corrections. $^{3,$}$. Different methods have been used to determine sin$^{2}\\Theta$$_{w}$, over a large range of $Q^{2}$ values. FIGURE 1 gives a compilation of sin$^{2}\\Theta$$_{w}$ with remarkable agreement between the results. At present, it is most precisely determined in semileptonic neutrino-nucleon scattering from the ratio of neutral current (NC) to charged current (CC) cross and in proton-antiproton collisions from the W boson mass. $^{10,11}$.

  15. Neutrino interactions with nuclei

    International Nuclear Information System (INIS)

    Walecka, J.D.

    1983-01-01

    We examine tests of the Glashow-Weinberg-Salam (GWS) Standard Theory of Electroweak Interactions. The tests are model-independent in the sense that they are relations between experimental quantities that are direct consequences of the GWS theory, but they are independent of the detailed structure of the nucleus. Such relationships were anticipated by Weinberg. Neutrino reactions with nuclei are considered, focusing largely on charged-lepton production, and it is demonstrated that intermediate-energy neutrino reactions have a central and unique role to play in our understanding of semileptonic weak interactions. This point is illustrated by discussing a complete kinematic experiment on the nucleon. A discussion of what neutrino reactions could teach us about nuclear structure is also given

  16. Low-energy restoration of parity and maximal symmetry

    International Nuclear Information System (INIS)

    Raychaudhuri, A.; Sarkar, U.

    1982-01-01

    The maximal symmetry of fermions of one generation, SU(16), which includes the left-right-symmetric Pati-Salam group, SU(4)/sub c/ x SU(2) /sub L/ x SU(2)/sub R/, as a subgroup, allows the possibility of a low-energy (M/sub R/approx.100 GeV) breaking of the left-right symmetry. It is known that such a low-energy restoration of parity can be consistent with weak-interaction phenomenology. We examine different chains of descent of SU(16) that admit a low value of M/sub R/ and determine the other intermediate symmetry-breaking mass scales associated with each of these chains. These additional mass scales provide an alternative to the ''great desert'' expected in some grand unifying models. The contributions of the Higgs fields in the renormalization-group equations are retained and are found to be important

  17. Higgs inflation, reheating and gravitino production in no-scale Supersymmetric GUTs

    International Nuclear Information System (INIS)

    Ellis, John; He, Hong-Jian; Xianyu, Zhong-Zhi

    2016-01-01

    We extend our previous study of supersymmetric Higgs inflation in the context of no-scale supergravity and grand unification, to include models based on the flipped SU(5) and the Pati-Salam group. Like the previous SU(5) GUT model, these yield a class of inflation models whose inflation predictions interpolate between those of the quadratic chaotic inflation and Starobinsky-like inflation, while avoiding tension with proton decay limits. We further analyse the reheating process in these models, and derive the number of e-folds, which is independent of the reheating temperature. We derive the corresponding predictions for the scalar tilt and the tensor-to-scalar ratio in cosmic microwave background perturbations, as well as discussing the gravitino production following inflation.

  18. Flavor-changing neutral currents: Theory and future experiments

    International Nuclear Information System (INIS)

    Gorn, M.

    1979-01-01

    An SU(2) consistent introduction of particular flavor changes in the neutral current of a generalized Weinberg-Salam model for hadrons is described and examples are discussed, in particular, two CP-violating and flavor-changing five-quark models, which are in agreement with measurements on the K 0 -K-bar 0 and theD 0 -D-bar 0 system and still allow t bold-arrow-left-right c and b bold-arrow-left-right s transitions. The evidence for the strong suppression of a neutral u bold-arrow-left-right c transition from D 0 -D-bar 0 measurements is briefly reviewed. The experimental signatures of the different flavor changes, to be detected or to be ruled out in the future, are discussed

  19. Plasma neutrino energy loss due to the axial-vector current at the late stages of stellar evolution

    International Nuclear Information System (INIS)

    Liu Jingjing

    2009-01-01

    Based on the Weinberg-Salam theory, the plasma neutrino energy loss rates of vector and axial-vector contributions are studied. A ratable factor of the rates from the axial-vector current relative to those of the total neutrino energy loss rates is accurately calculated. The results show that the ratable factor will reach a maximum of 0.95 or even more at relatively higher temperature and lower density (such as ρ/μ e 7 g/cm 3 ). Thus the rates of the axial-vector contribution cannot be neglected. On the other hand, the rates of the axial-vector contribution are on the order of ∼0.01% of the total vector contribution, which is in good agreement with Itoh's at relatively high density (such as ρ/μ e > 10 7 g/cm 3 ) and a temperature of T≤10 11 K. (authors)

  20. ‘For someone who’s rich, it’s not a problem’

    DEFF Research Database (Denmark)

    Kolling, Marie; Winkley, Kirsty; von Deden, Mette

    2010-01-01

    The prevalence of chronic non-communicable disease, such as type 2 diabetes mellitus (T2DM), is rising worldwide. In Africa, T2DM is primarily affecting those living in urban areas and increasingly affecting the poor. Diabetes management among urban poor is an area of research that has received......; and health-seeking among people with T2DM. We demonstrate that although Tanzania is actively developing its diabetes services, many people with diabetes and low socioeconomic status are unable to engage continuously in treatment. There are many challenges to be addressed to support people accessing diabetes...... little attention. Based on ethnographic fieldwork in Dar es Salam, the causes and conditions for diabetes management in Tanzania have been examined. In this paper, we focus on the structural context of diabetes services in Tanzania; the current status of biomedical and ethnomedical health care...

  1. The left-right forward-backward asymmetry for B quarks at the SLD

    Energy Technology Data Exchange (ETDEWEB)

    Williams, David C. [Stanford Univ., CA (United States)

    1994-05-01

    The left-right asymmetry for b quarks, A{sub b}, is precisely predicted by the Weinberg-Salam-Glashow model of particle interactions, now the standard model for high-energy particle physics. As a test of this model, Ab is directly measured at the SLC Large Detector (SLD) by taking advantage of the unique polarized electron beam at the Stanford Linear Collider (SLC) and measuring the left-right forward-backward asymmetry of b quarks. To measure the asymmetry, b quarks are identified using muons of high total and transverse momenta. The result for the 1993 data sample of 37,843 hadronic Z`s is Ab = 0.91 ± 0.19 ± 0.06, where the first error is statistical and the second systematic. This result is in agreement with the standard model prediction of Ab = 0.935.

  2. The left-right forward-backward asymmetry for B quarks at the SLD

    International Nuclear Information System (INIS)

    Williams, D.C.

    1994-05-01

    The left-right asymmetry for b quarks, A b , is precisely predicted by the Weinberg-Salam-Glashow model of particle interactions, now the standard model for high-energy particle physics. As a test of this model, A b is directly measured at the SLC Large Detector (SLD) by taking advantage of the unique polarized electron beam at the Stanford Linear Collider (SLC) and measuring the left-right forward-backward asymmetry of b quarks. To measure the asymmetry, b quarks are identified using muons of high total and transverse momenta. The result for the 1993 data sample of 37,843 hadronic Z's is A b = 0.91 ± 0.19 ± 0.06, where the first error is statistical and the second systematic. This result is in agreement with the standard model prediction of A b = 0.935

  3. The Environmental Early Warning System (EEWS): Concept Description.

    Science.gov (United States)

    1983-01-01

    and definitions are standard. 2. Deficits. Units or functions moved to a "receiv- 2. Data reports are more likely to be in computer- ing" installation...4.66m6ma Agem.8.,.~hlhalanaa5U a ahuuu Aema~imu h Uu,.9,8l$@e " A~igil~h milmia~~~~~61 am aam൱iaaaol,’eaaeai1,aia~aea. ,a~ dU tUWiDD~UI~" lM~9hh...Iiiim iaa ISa 6 Iniia 2aa aammaaaiuamaiaumma2adaaa28 a8a8 6amiiim imm amia..um maaa1 11a , 46a4a816* salamI Isasili. lmali:isaaii.a.4~m ama2:1 a11 1113

  4. Awards aplenty in Krakow

    CERN Multimedia

    2009-01-01

    CERN will be well represented this year at the award ceremony organized by the European Physical Society (EPS) in Krakow. The Gargamelle Collaboration is being awarded the High Energy and Particle Physics prize, while Maurizio Pierini shares the Young Physicist Prize. Both Mick Storr and Andrzej Siemko will be awarded the Medal of the Polish Commission of National Education.This year’s EPS-High Energy and Particle Physics Prize is being awarded to the Gargamelle Collaboration for the discovery of the weak neutral current. Gargamelle’s large bubble chamber is now displayed in the Microcosm garden at CERN in commemoration of the discovery that led to the acceptance of the electroweak theory and the award of the Noble prize to Glashow, Salam and Weinberg in 1979. On 3 September 1973 the collaboration published two papers in the same issue of Physics Letters, one on neutral currents involving electrons, the other on neutral current interactions with hadrons (protons and neut...

  5. Phenomenology of unified gauge theories

    International Nuclear Information System (INIS)

    Ellis, J.

    1983-01-01

    Part I of these lectures treats the standard Glashow-Weinberg-Salam model of weak and electromagnetic interactions, discussing in turn its basic structure and weak neutral currents, charged currents, mixing angles and CP violation, and the phenomenology of weak vector and Higgs bosons. Part II of the lectures discusses the structure of theories of dynamical symmetry breaking such as technicolour, phenomenological consequences, frustrations and alternatives. The third part of these lectures offers the standard menu of grand unified theories (GUTs) of the strong, weak and electromagnetic interactions, including an hors d'oeuvre of constraints on the parameters of the standard model, a main course of baryon number violating processes, and desserts which violate lepton number and CP. The fourth and final part goes through different attempts to remedy the inadequacies of previous theories by invoking supersymmetry and reaching out towards gravitation. (orig./HSI)

  6. Gauge theories in particle physics a practical introduction

    CERN Document Server

    Aitchison, Ian J R

    2013-01-01

    The fourth edition of this well-established, highly regarded two-volume set continues to provide a fundamental introduction to advanced particle physics while incorporating substantial new experimental results, especially in the areas of CP violation and neutrino oscillations. It offers an accessible and practical introduction to the three gauge theories included in the Standard Model of particle physics: quantum electrodynamics (QED), quantum chromodynamics (QCD), and the Glashow-Salam-Weinberg (GSW) electroweak theory. In the first volume, a new chapter on Lorentz transformations and discrete symmetries presents a simple treatment of Lorentz transformations of Dirac spinors. Along with updating experimental results, this edition also introduces Majorana fermions at an early stage, making the material suitable for a first course in relativistic quantum mechanics. Covering much of the experimental progress made in the last ten years, the second volume remains focused on the two non-Abelian quantum gauge field...

  7. SO(10)-Inspired See-Saw Mechanism

    CERN Document Server

    Abud, M

    2001-01-01

    We determine the nu_{R} Majorana mass matrix from the experimental data on neutrino oscillations in the framework of a see-saw SO(10) model, where we impose the condition (M^R)_{33} = 0 to avoid too large fine-tunings in the see-saw formula. We find a class of solutions with the two lowest neutrino masses almost degenerate and the scale of the matrix elements of M^R in the range 10^{11} -10^{12} GeV in agreement with Pati-Salam intermediate symmetry. We find also solutions with smaller neutrino masses, for which the scale of M_R depends on the solution to the "solar neutrino problem" and on the value of the component of \

  8. Salicylamide and salicylglycine oxidovanadium complexes with insulin-mimetic properties.

    Science.gov (United States)

    Nilsson, Jessica; Shteinman, Albert A; Degerman, Eva; Enyedy, Eva A; Kiss, Tamás; Behrens, Ulrich; Rehder, Dieter; Nordlander, Ebbe

    2011-12-01

    Reaction of N-(2-hydroxybenzyl)-N-(2-picolyl) glycine (H(2)papy) with VOSO(4) in water gives the oxidovanadium(V) oxido-bridged dimer [{(papy)(VO)}(2) μ-O)] (1). Similarly, reaction of N-(2-hydroxybenzyl) glycine (H(2)glysal) with VOSO(4) gives [(glysal)VO(H(2)O)] (2) and reaction of salicylamide (Hsalam) with VOSO(4) in methanol gives [(salam)(2)VO] (3). The crystal structure of the oxido-bridged complex 1 is reported. The insulin-mimetic activity of all three complexes was evaluated with respect to their ability to phosphorylate protein kinase B (PKB). The speciations of complexes 1 and 2 were studied over the pH range 2-10. Complex 1 shows greater stability over the whole pH range but only 2 and 3 exhibit an insulin-mimetic effect. Copyright © 2011 Elsevier Inc. All rights reserved.

  9. Experiment, right or wrong

    CERN Document Server

    Franklin, Allan

    2008-01-01

    In Experiment, Right or Wrong, Allan Franklin continues his investigation of the history and philosophy of experiment presented in his previous book, The Neglect of Experiment. In this new study, Franklin considers the fallibility and corrigibility of experimental results and presents detailed histories of two such episodes: 1) the experiment and the development of the theory of weak interactions from Fermi's theory in 1934 to the V-A theory of 1957 and 2) atomic parity violation experiments and the Weinberg-Salam unified theory of electroweak interactions of the 1970s and 1980s. In these episodes Franklin demonstrates not only that experimental results can be wrong, but also that theoretical calculations and the comparison between experiment and theory can also be incorrect. In the second episode, Franklin contrasts his view of an "evidence model" of science in which questions of theory choice, confirmation, and refutation are decided on the basis of reliable experimental evidence, with that proposed by the ...

  10. Superweak CP-violation and right-handed horizontal interactions

    International Nuclear Information System (INIS)

    Joshipura, A.S.; Montvay, I.

    1981-07-01

    A horizontal extension of the Weinberg-Salam electroweak theory by a right-handed 0(3)sub(R)sub(H) gauge symmetry for the three fermion families is studied. By an appropriate choice of the Higgs-scalar fields the CP-symmetry of the Lagrangean is spontaneously broken, but the mixing of the left-handed fermion states, and hence the Kobayashi-Maskawa mixing matrix, remains real. The CP-violation is manifested in the superweak horizontal gauge interactions, which are suppressed by the large mass of the corresponding gauge bosons. It is, however, possible that the horizontal boson acting on the second and third families can be considerably lighter than the other two, implying an interesting phenomenology of the related CP-violation effects and flavour-changing neutral currents. (orig.)

  11. The spectrum of d=11 supergravity via harmonic expansions S4xS7

    International Nuclear Information System (INIS)

    Sezgin, E.

    1984-06-01

    We derive the complete particle spectrum of the d=11 supergravity compactified on AdSxS 7 , by analytically continuing AdS to S 4 , and using the Salam-Strathdee method of harmonic expansion on S 4 xS 7 . The spectrum is arranged into supermultiplets labelled by an integer l=0,1,2,...,. The massless supermultiplet corresponds to l=0. For the l'th supermultiplet we find a relation, involving the eigenvalues of the second-order Casimir operators of SO(3,2) and SO(8), given by 2C 2 [SO(3,2)] + C 2 [SO(8)] = 3(l+2)(l+4)/2. (author)

  12. Gauged discrete symmetries and proton stability

    International Nuclear Information System (INIS)

    Mohapatra, Rabindra N.; Ratz, Michael

    2007-01-01

    We discuss the results of a search for anomaly-free Abelian Z N discrete symmetries that lead to automatic R-parity conservation and prevent dangerous higher-dimensional proton decay operators in simple extensions of minimal supersymmetric extension of the standard model based on the left-right symmetric group, the Pati-Salam group and SO(10). We require that the superpotential for the models have enough structures to be able to give correct symmetry breaking to minimal supersymmetric extension of the standard model and potentially realistic fermion masses. We find viable models in each of the extensions, and for all the cases, anomaly freedom of the discrete symmetry restricts the number of generations

  13. Essay on physics and non-commutative geometry

    International Nuclear Information System (INIS)

    Connes, A.

    1990-01-01

    Our aim, in this article, is to try to discover what physics would be like if the space in which it took place was not a set of points, but a non-commutative space. We shall not go very far in this direction, and the consequences of this investigation are for the moment either mathematical or only applied to a commutative space-time. It is clear, however, that a tool as remarkable as the Dixmier trace for analyzing logarithmic divergences should be useful to physicists. Moreover we have been able to show that a small modification of our picture of space-time gives a conceptual explanation of the Higgs fields and of the way they appear in the Weinberg-Salam model. This should allow us to make at the classical level explicit predictions of the Higgs mass: a very crude one is discussed. (author)

  14. Gauge theories and monopoles

    International Nuclear Information System (INIS)

    Cabibbo, N.

    1983-01-01

    This chapter attempts to present some of the fundamental geometrical ideas at the basis of gauge theories. Describes Dirac Monopoles and discusses those ideas that are not usually found in more ''utilitarian'' presentations which concentrate on QCD or on the Glashow-Salam-Weinberg model. This topic was chosen because of the announcement of the possible detection of a Dirac monopole. The existence of monopoles depends on topological features of gauge theories (i.e., on global properties of field configurations which are unique to gauge theories). Discusses global symmetry-local symmetry; the connection; path dependence and the gauge fields; topology and monopoles; the case of SU(3) x U(1); and the 't Hooft-Polyakov monopole

  15. Towers and ladders: Infinite parameter symmetries in Kaluza-Klein theories

    International Nuclear Information System (INIS)

    Aulakh, C.S.

    1984-05-01

    We introduce a class of infinite dimensional algebras with a 'generalized loop structure' by considering the global symmetries of the four dimensional Lagrangian obtained by compactifying general relativity coupled to Yang-Mills in six dimensions down to M 4 xS 2 . The generalization to arbitrary dimensions is then obvious. We show by explicit construction that such algebras possess an infinite number of finite sub-algebras. Among which, for the six dimensional case, is so(1,3) realized on S 2 with vanishing Casimir invariants. This so(1,3) may be interpreted, in accord with a previous conjecture of Salam and Strathdee [Ann. Phys. 141, 316(1982)], as the 'ladder' symmetry for the Kaluza-Klein towers. (author)

  16. Of towers and ladders: Infinite parameter symmetries in Kaluza-Klein theories

    International Nuclear Information System (INIS)

    Aulakh, C.S.

    1984-01-01

    We introduce a class of infinite dimensional algebras with a 'generalized loop structure' by considering the global symmetries of the four-dimensional lagrangian obtained by compactifying general relativity coupled to Yang-Mills in six-dimensions down to M 4 x S 2 . The generalization to arbitrary dimensions is then obvious. We show by explicit construction that such algebras possess an infinite number of finite sub-algebras among which, for the six-dimensional case, is so (1, 3), realized on S 2 with vanishing Casimir invariants. This so (1, 3) may be interpreted, in accordance with a previous conjecture of Salam and Strathdee, as the 'ladder' symmetry for the Kaluza-Klein towers. (orig.)

  17. Chern-Simons Theories with Fundamental Matter: A Brief Review of Large N Results Including Fermi-Bose Duality and the S-matrix

    Science.gov (United States)

    Wadia, Spenta R.

    We begin with a few words about Salam's contribution to the growth of String Theory in India. In the technical talk we review results in SU(N) Chern-Simons plus vector matter theories in 2+1 dim in the large N limit. The dressing of charged matter by Chern-Simons gauge fields leads to anyons that interpolate between fermions and bosons and lead to a duality symmetry between fermionic and bosonic theories. The S-matrix (defined in the large N limit) besides exhibiting this duality, also exhibits novel properties due to the presence of anyons. The S-matrix is not analytic, like in Aharonov-Bohm scattering, and satisfies modified crossing symmetry relations.

  18. Baryon and lepton number violation in the electroweak theory at TeV energies

    International Nuclear Information System (INIS)

    Mottola, E.

    1990-01-01

    In the standard Weinberg-Salam electroweak theory baryon and lepton number (B and L) are NOT exactly conserved. The nonconservation of B and L can be traced to the existence of parity violation in the electroweak theory, together with the chiral current anomaly. This subtle effect gives negligibly small amplitudes for B and L violation at energies and temperatures significantly smaller than M w sin 2 θ w /α ∼ 10 TeV. However, recent theoretical work shows that the rate for B and L nonconservation is unsuppressed at higher energies. The consequences of this for cosmology and the baryon asymmetry of the universe, as well as the prospects for direct verification at the SSC are discussed. 13 refs., 3 figs

  19. Does nature like Nambu-Goldstone bosons

    International Nuclear Information System (INIS)

    Gelmini, G.B.; Nussinov, S.

    1982-08-01

    We argue here that many (up to around 30 species) so far undetected Goldstone bosons could exist in nature, for example, associated to the spontaneous breaking of a horizontal global symmetry, provided the breaking scale is V >or approx. 10 10 GeV. Since Goldstone bosons do not generate r - 1 but spin-dependent r - 3 non-relativistic long-range potentials, the apparently most dramatic effect of massless bosons - new long-range forces competing with gravitation and electromagnetism - is easily avoidable (the Glashow-Weinberg-Salam breaking scale is enough). μ→eG and K→πG provide the most restrictive bounds and probably the only possibility to look for Goldstone bosons in laboratory. (author)

  20. An introduction to gauge theories

    International Nuclear Information System (INIS)

    Iliopoulos, J.

    1977-01-01

    The CERN-JINR School of Physics is meant to give young experimental physicists an introduction to the theoretical aspects of recent advances in elementary particle physics. This paper presents an introduction to gauge theories: the systematics of Yang-Mills theories, spontaneous symmetry breaking, and Higgs mechanism. The treatment is simple, stressing the general principles rather than detailed calculations. The author presents the Weinberg-Salam model as an example of a renormalizable theory of weak and electromagnetic interactions of leptons, and it is shown that the extension of these ideas into the hadronic world requires the introduction of charm and colour. Finally, an attempt is made to include strong interactions into the scheme, guided by the experimental results of deep-inelastic lepton-nucleon scattering. The Callan-Symanzik equation, and the concepts of asymptotic freedom and quark confinement are introduced. (Auth.)

  1. Electroweak symmetry breaking: Higgs/whatever

    International Nuclear Information System (INIS)

    Chanowitz, M.S.

    1989-01-01

    In the first of these two lectures the Higgs mechanism is reviewed in its most general form, which does not necessarily require the existence of Higgs bosons. The general consequences of the hypothesis that electroweak symmetry breaking is due to the Higgs mechanism are deduced just from gauge invariance and unitarity. In the second lecture the general properties are illustrated with three specific models: the Weinberg-Salam model, its minimal supersymmetric extension, and technicolor. The second lecture concludes with a discussion of the experiment signals for strong WW scattering, whose presence or absence will allow us to determine whether the symmetry breaking sector lies above or below 1 TeV. 57 refs

  2. Higgs Inflation, Reheating and Gravitino Production in No-Scale Supersymmetric GUTs

    CERN Document Server

    Ellis, John; Xianyu, Zhong-Zhi

    2016-08-30

    We extend our previous study of supersymmetric Higgs inflation in the context of no-scale supergravity and grand unification, to include models based on the flipped SU(5) and the Pati-Salam group. Like the previous SU(5) GUT model, these yield a class of inflation models whose inflation predictions interpolate between those of the quadratic chaotic inflation and Starobinsky-like inflation, while also avoiding tension with proton decay limits. We further analyse the reheating process in these models, and derive the number of $e$-folds, which is independent of the reheating temperature. We derive the corresponding predictions for the scalar tilt and the tensor-to-scalar ratio in cosmic microwave background perturbations, and also discuss gravitino production following inflation.

  3. Experimental limits on the strength of weak neutral currents in lepton pair production at PETRA energies

    International Nuclear Information System (INIS)

    Bartel, W.; Cords, D.; Dittmann, P.; Eichler, R.; Felst, R.; Haidt, D.; Kawabata, S.; Krehbiel, H.; Naroska, B.; O'Neill, L.H.

    1980-12-01

    The processes e + esup(a)nd → e + e - and μ + μ - have been studied at PETRA using the JADE detector. The data, which were collected at s values of up to 1300 GeV 2 have been analysed in terms of an electro-weak extension of QED to obtain values for the weak vector and axial vector couplings in the lepton sector. The values obtained agree with the predictions of the standard Salam-Weinberg model and the data are further analysed in terms of this model to obtain the limits 0.10 2 THETAsub(w) 0.40 (68% C.L.). The mass of the neutral weak gauge boson is deduced to be greater than 51 GeVc 2 . (orig.)

  4. Chromogravity explains open-quotes strong gravityclose quotes

    International Nuclear Information System (INIS)

    Ne'eman, Y.

    1993-03-01

    In this paper the authors deal with the question of gravitational type interactions in the case of strong interaction phenomena. They present arguments which indicate that it is not necessary to invoke a gravity type interaction into QCD in order to account for observed phenomena. They argue that the gravitational type phenomena discussed in previous work is a manifestation of a class of Feynmann diagrams. These seem to generate an analog to gravity, a J=2 open-quotes chromogravitonclose quotes or open-quotes pseudo-gravitonclose quotes whose action effectively generates Salam's open-quotes Strong Gravityclose quotes or open-quotes f-gravityclose quotes, withthough having to introduce the theory as an additional input

  5. Nuclear and particle physics

    CERN Document Server

    Amsler, Claude

    2015-01-01

    Nuclear and Particle Physics provides an introductory course on nuclear and particle physics for undergraduate and early-graduate students, which the author has taught for several years at the University of Zurich. It contains fundamentals on both nuclear and particle physics, giving emphasis to the discovery and history of developments in the field, and is experimentally/phenomenologically oriented. It contains detailed derivations of formulae such as 2–3 body phase space, the Weinberg-Salam model, and neutrino scattering. Originally published in German as Kern- und Teilchenphysik, several sections have been added to this new English version to cover modern topics, including updates on neutrinos, the Higgs boson, the top quark and bottom quark physics.

  6. An introduction to gauge theories

    International Nuclear Information System (INIS)

    Iliopoulos, J.

    1976-01-01

    These lecture notes present an introduction to gauge theories: the systematics of Yang-Mills theories, spontaneous symmetry breaking, and Higgs mechanism. The treatment is simple, stressing the general principles rather than detailed calculations. We present the Weinberg-Salam model as an example of a renormalizable theory of weak and electromagnetic interactions of leptons, and we show that the extension of these ideas into the hadronic world requires the introduction of charm and colour. Finally, we try to include strong interactions into the scheme, guided by the experimental results of deep-inelastic lepton-nucleon scattering. We derive and solve the Callan-Symanzik equation, and we introduce the concepts of asymptotic freedom and quark confinement. (Author)

  7. Towards exact solutions of the non-linear Heisenberg-Pauli-Weyl spinor equation

    International Nuclear Information System (INIS)

    Mielke, E.W.

    1980-03-01

    In ''color geometrodynamics'' fundamental spinor fields are assumed to obey a GL(2f,C) x GL(2c,C) gauge-invariant nonlinear spinor equation of the Heisenberg-Pauli-Weyl type. Quark confinement, assimilating a scheme of Salam and Strathdee, is (partially) mediated by the tensor ''gluons'' of strong gravity. This hypothesis is incorporated into the model by considering the nonlinear Dirac equation in a curved space-time of hadronic dimensions. Disregarding internal degrees of freedom, it is then feasible, for a particular background space-time, to obtain exact solutions of the spherical bound-state problem. Finally, these solutions are tentatively interpreted as droplet-type solitons and remarks on their interrelation with Wheeler's geon construction are made. (author)

  8. Parity nonconserving optical rotation in atomic lead

    International Nuclear Information System (INIS)

    Emmons, T.P. Jr.

    1984-01-01

    A measurement of parity nonconserving optical rotation has been performed on the 1.28 μm atomic lead magnetic dipole transition. Although the technique used in this measurement was similar to that used in earlier measurements done on the 0.876 μm line in atomic bismuth, important differences exist. These are discussed in detail. Since the accuracy of this measurement is limited by systematic errors, a complete analysis of the data is included with a lengthy discussion of systematic effects. The final value obtained for the optical rotation is given. This agrees with atomic calculations based on the Weinberg-Salam-Galshow model for weak interactions. A discussion of the limits on weak interaction theories placed by all the atomic parity nonconservation experiments appears in the conclusion

  9. On the confinement of monopoles in non-Abelian gauge theories

    International Nuclear Information System (INIS)

    Tsou, S.T.; Chan, H.-M.

    1981-03-01

    Monopoles in gauge theories, whether Abelian or non-Abelian, are characterised by the homotopy classes of closed circuits in their gauge group. It is shown that when the symmetry is spontaneously broken, they fall into two categories with respect to their confinement properties. 'Reducible' monopoles corresponding to homotopy classes which contain circuits lying entirely in the subgroup of the residual symmetry can exist isolated and free; otherwise they must be attached to energetic vortex lines. In particular, it is shown that whereas in completely broken symmetries, such as the Nielsen-Olesen SO(3) theory broken by two triplets of Higgs fields, all monopoles are permanently confined, in some partially broken symmetries including the Georgi-Glashow and Weinberg-Salam electroweak theories, monopoles are not confined. In these latter cases, the monopole flux need not be concentrated along vortex lines but can leak out in all directions via the components of the gauge potential corresponding to the residual symmetry. (author)

  10. Hilltop supernatural inflation and SUSY unified models

    Energy Technology Data Exchange (ETDEWEB)

    Kohri, Kazunori [Cosmophysics Group, Theory Center, IPNS KEK, and The Graduate University for Advanced Studies (Sokendai), 1-1 Oho, Tsukuba, 305-0801 (Japan); Lim, C.S. [Department of Mathematics, Tokyo Woman' s Christian University, Tokyo, 167-8585 (Japan); Lin, Chia-Min [Department of Physics, Chuo University, Bunkyo-ku, Tokyo, 112 (Japan); Mimura, Yukihiro, E-mail: kohri@post.kek.jp, E-mail: lim@lab.twcu.ac.jp, E-mail: lin@chuo-u.ac.jp, E-mail: mimura@hep1.phys.ntu.edu.tw [Department of Physics, National Taiwan University, Taipei, 10617 Taiwan (China)

    2014-01-01

    In this paper, we consider high scale (100TeV) supersymmetry (SUSY) breaking and realize the idea of hilltop supernatural inflation in concrete particle physics models based on flipped-SU(5)and Pati-Salam models in the framework of supersymmetric grand unified theories (SUSY GUTs). The inflaton can be a flat direction including right-handed sneutrino and the waterfall field is a GUT Higgs. The spectral index is n{sub s} = 0.96 which fits very well with recent data by PLANCK satellite. There is no both thermal and non-thermal gravitino problems. Non-thermal leptogenesis can be resulted from the decay of right-handed sneutrino which plays (part of) the role of inflaton.

  11. Hilltop supernatural inflation and SUSY unified models

    Science.gov (United States)

    Kohri, Kazunori; Lim, C. S.; Lin, Chia-Min; Mimura, Yukihiro

    2014-01-01

    In this paper, we consider high scale (100TeV) supersymmetry (SUSY) breaking and realize the idea of hilltop supernatural inflation in concrete particle physics models based on flipped-SU(5)and Pati-Salam models in the framework of supersymmetric grand unified theories (SUSY GUTs). The inflaton can be a flat direction including right-handed sneutrino and the waterfall field is a GUT Higgs. The spectral index is ns = 0.96 which fits very well with recent data by PLANCK satellite. There is no both thermal and non-thermal gravitino problems. Non-thermal leptogenesis can be resulted from the decay of right-handed sneutrino which plays (part of) the role of inflaton.

  12. Hilltop supernatural inflation and SUSY unified models

    International Nuclear Information System (INIS)

    Kohri, Kazunori; Lim, C.S.; Lin, Chia-Min; Mimura, Yukihiro

    2014-01-01

    In this paper, we consider high scale (100TeV) supersymmetry (SUSY) breaking and realize the idea of hilltop supernatural inflation in concrete particle physics models based on flipped-SU(5)and Pati-Salam models in the framework of supersymmetric grand unified theories (SUSY GUTs). The inflaton can be a flat direction including right-handed sneutrino and the waterfall field is a GUT Higgs. The spectral index is n s = 0.96 which fits very well with recent data by PLANCK satellite. There is no both thermal and non-thermal gravitino problems. Non-thermal leptogenesis can be resulted from the decay of right-handed sneutrino which plays (part of) the role of inflaton

  13. Quarks as conformal semi-spinors

    International Nuclear Information System (INIS)

    Budini, P.

    1979-07-01

    The hypothesis is formulated that quarks may be represented by Cartan conformal semi-spinors. Some of the properties usually assigned to standard Dirac spinor quarks may also be assigned to semi-spinor quarks and some of them result quite simply from the geometry of semi-spinors. A charge matrix is obtained which is fractional for Cartan semi-spinors (quarks) and integer for Dirac spinors (leptons) through an orthogonal rotation in the flavour-colour plane. The angle of rotation depends on the ratio of flavour and colour coupling constants. When restricted to the νe lepton doublet, the Salam-Weinberg Lagrangian is easily obtained from the postulated hypothesis. (author)

  14. Some neutrino decays

    International Nuclear Information System (INIS)

    Levy, J.M.

    1984-01-01

    Massive neutrinos mixing with weak interaction eigenstates are expected to decay into various channels depending on their masses and their mixing pattern. The author reviews some of these decay modes in the simpliest possible frame (νsub(H) → e - e + νsub(e), νsub(n) → γνsub(e), νsub(n) → γγνsub(e) and considers only the addition of right handed neutrino fields to the spectrum of the standard Glashow-Salam-Weinberg theory of weak interactions, thereby allowing for the existence of Dirac masses generated through the coupling of these fields and their left handed mates with the usual Higgs doublet and its charge conjugate, as is the case for quarks

  15. Gauge theories in particle physics

    International Nuclear Information System (INIS)

    Aitchison, I.J.R.; Hey, A.J.G.

    1982-01-01

    The first theory, quantum electrodynamics (QED) is known to give a successful account of electromagnetic interactions. Weak and strong interactions are described by gauge theories which are generalisations of QED. The electro-weak gauge theory of Glashow Salam and Weinberg unites electromagnetic and weak interactions. Quantum chromodynamics (QCD) is the gauge theory of strong interactions. This approach to these theories, designed for the non-specialist, is based on a straightforward generalisation of non-relativistic quantum-mechanical perturbation theory to the relativistic case, leading to an intuitive introduction to Feynman graphs. Spontaneously broken-or 'hidden'-symmetries are given particular attention, with the physics of hidden gauge invariance and the role of the vacuum (essential to the unified theories) being illustrated by an extended but elementary discussion of the non-relativistic example of superconductivity. Throughout, emphasis is placed both on realistic calculations and on physical understanding. (author)

  16. Measurements of the mixing and asymmetries of b and c quarks in the semileptonic electron and muon decays; Mesures du melange effectif et des asymetries des quarks b et c dans les desintegrations semileptoniques en electrons et en muons

    Energy Technology Data Exchange (ETDEWEB)

    Durand, J.D.

    1996-10-07

    The standard model relies on many non theoretical parameters and on their precise determination. One of them, the Weinberg angle, is connected to the electroweak interaction. This work deals with its measurement through the estimation of the forward-backward asymmetry A{sup bb}-bar{sub FB} and/or A{sup cc}-bar{sub FB}. After a brief introduction, the author gives the theoretical background of the gauge symmetries, the Glashow-Weinberg-Salam (GWS) model and the e{sup +}e{sup -} annihilation process. The asymmetry measurements were performed at the LEP (CERN). A description of the DELPHI experiments and detection devices is given. The reliability of the identification of the leptons, pions and muons is discussed and the particle selection performed. The results are finally presented as well as a detailed study of the related systematic errors, using the b tagging algorithm. (N.T.). 70 refs.

  17. Supersymmetric codimension-two branes in six-dimensional gauged supergravity

    International Nuclear Information System (INIS)

    Lee, Hyun Min; Papazoglou, Antonios

    2008-01-01

    We consider the six-dimensional Salam-Sezgin supergravity in the presence of codimension-2 branes. In the case that the branes carry only tension, we provide a way to supersymmetrise them by adding appropriate localised Fayet-Iliopoulos terms and modifying accordingly the supersymmetry transformations. The resulting brane action has N = 1 supersymmetry (SUSY). We find the axisymmetric vacua of the system and show that one has unwarped background solutions with 'football'-shaped extra dimensions which always respect N = 1 SUSY, in contrast with the non-supersymmetric brane action background. Finally, we generically find multiple zero modes of the gravitino in this background and discuss how one could obtain a single chiral zero mode present in the low energy spectrum

  18. Efecto de la dieta de cerdos en crecimiento sobre el valor nutritivo y la aptitud tecnológica de la carne y grasa

    Directory of Open Access Journals (Sweden)

    Gustavo Capra

    2011-12-01

    Full Text Available Se sometieron cerdos con peso medio inicial de 53 kg a tres tratamientos: T1 dieta testigo conteniendo suplementos proteicos de origen vegetal y animal, T2 dieta basada exclusivamente en suplementos proteicos de origen vegetal y T3 dieta testigo restringida al 90 % de la cantidad ofrecida al T1 más libre acceso a pasturas. Se determinaron parámetros de comportamiento productivo y características de la canal en planta de faena. Se determinaron contenido de grasa intramuscular del Longissimus dorsi, perfil lipídico de la grasa subcutánea e intramuscular, contenido de hierro, zinc, magnesio, sodio y vitamina E. Se determinó también el punto de fusión de la grasa dorsal como indicador de aptitud tecnológica para la elaboración de productos fermentados. Con grasa procedente de cada tratamiento se elaboraron salames que fueron evaluados sensorialmente. En los parámetros de calidad de canal evaluados no hubo diferencias estadísticamente significativas. El acceso a pasturas determinó un incremento en el contenido de ácido linolénico y una mejora de la relación n6/n3 en la grasa subcutánea. No hubo diferencias significativas en el punto de fusión de la grasa. Las muestras de salame resultaron ser distintas, con un nivel de confianza del 95 % para los atributos textura e intención de compra.

  19. MODEL PEMBERDAYAAN MASYARAKAT PASCAERUPSI GUNUNG MERAPI DI JAWA TENGAH DAN YOGYAKARTA

    Directory of Open Access Journals (Sweden)

    Masrukin -

    2014-02-01

    Full Text Available AbstrakPenelitian ini bertujuan membuat model pemberdayaan masyarakat pascaerupsi Gunung Merapi di lokasi yang terkena dampak paling parah yaitu: di Desa Tlogolele Kecamatan Selo Kabupaten Boyolali, Desa Jumuyo Kecamatan Salam Kabupaten Magelang dan Desa Balerante Kecamatan Kemalang Kabupaten Klaten Provinsi Jawa Tengah serta Desa Kepuharjo Kecamatan Cangkringan Kabupaten Sleman Provinsi Yogyakarta. Menggunakan metode Participatory Rural Appraisal (PRA untuk melakukan pengkajian keadaan desa secara partisipatif melalui wawancara mendalam, observasi dan focus group discussion (FGD. Hasil penelitian menunjukan dari keempat lokasi, memiliki kesamaan dalam model pemberdayaan yaitu: (1 Masyarakat  membutuhkan serangkaian kegiatan pemberdayaan secara menyeluruh, antara kegiatan penyuluhan, pelatihan dan pendampingan. Karena selama ini, masyarakat telah mendapat penyuluhan, pelatihan dan bantuan, akan tetapi untuk program pendampingan yang dibutuhkan tidak diberikan. Akibatnya kurang mendukung pada keberlanjutan, peningkatan produktivitas dan pemasaran.  (2 Masyarakat membutuhkan lembaga koperasi yang memiliki badan hukum sebagai pusat usaha perekonomian untuk memenuhi kebutuhan permodalan, bahan baku, dan akses jaringan pemasaran. (3 Masyarakat membutuhkan pelatihan secara periodik dan penguatan kembali kelompok siaga bencana di tingkat desa. AbstractThis research aims to create empowerment model after the eruption of Mount Merapi in locations most severely affected: Tlogolele Village of Selo District in Boyolali Regency, Jumoyo Village of Salam District in Magelang Regency and  Balerante Village in Kemalang District of Klaten Regency in Central Java Province and Kepuharjo Village of Cangkringan District in Sleman Regency in Yogyakarta Province. The research used Participatory Rural Appraisal (PRA method for assessing participatory village situation through in-depth interviews, observation and focus group discussion (FGD. The results showed that

  20. Update earthquake risk assessment in Cairo, Egypt

    Science.gov (United States)

    Badawy, Ahmed; Korrat, Ibrahim; El-Hadidy, Mahmoud; Gaber, Hanan

    2017-07-01

    The Cairo earthquake (12 October 1992; m b = 5.8) is still and after 25 years one of the most painful events and is dug into the Egyptians memory. This is not due to the strength of the earthquake but due to the accompanied losses and damages (561 dead; 10,000 injured and 3000 families lost their homes). Nowadays, the most frequent and important question that should rise is "what if this earthquake is repeated today." In this study, we simulate the same size earthquake (12 October 1992) ground motion shaking and the consequent social-economic impacts in terms of losses and damages. Seismic hazard, earthquake catalogs, soil types, demographics, and building inventories were integrated into HAZUS-MH to produce a sound earthquake risk assessment for Cairo including economic and social losses. Generally, the earthquake risk assessment clearly indicates that "the losses and damages may be increased twice or three times" in Cairo compared to the 1992 earthquake. The earthquake risk profile reveals that five districts (Al-Sahel, El Basateen, Dar El-Salam, Gharb, and Madinat Nasr sharq) lie in high seismic risks, and three districts (Manshiyat Naser, El-Waily, and Wassat (center)) are in low seismic risk level. Moreover, the building damage estimations reflect that Gharb is the highest vulnerable district. The analysis shows that the Cairo urban area faces high risk. Deteriorating buildings and infrastructure make the city particularly vulnerable to earthquake risks. For instance, more than 90 % of the estimated buildings damages are concentrated within the most densely populated (El Basateen, Dar El-Salam, Gharb, and Madinat Nasr Gharb) districts. Moreover, about 75 % of casualties are in the same districts. Actually, an earthquake risk assessment for Cairo represents a crucial application of the HAZUS earthquake loss estimation model for risk management. Finally, for mitigation, risk reduction, and to improve the seismic performance of structures and assure life safety

  1. People and things. CERN Courier, Oct 1995, v. 35(7)

    International Nuclear Information System (INIS)

    Anon.

    1995-01-01

    The article reports on achievements of various people, staff changes and position opportunities within the CERN organization and contains news updates on upcoming or past events: Gentner-Kastler Prize: T he prestigious Gentner-Kastler Prize, jointly awarded by the French and German Physical Societies, goes this year to Walter Schmidt-Parzefall of DESY, formerly leader of the Argus group at the DORIS electron-positron collider at the DESY Laboratory Hamburg, which has made many significant contributions to heavy quark spectroscopy. Subsequently he joined Hamburg University, and has recently played a prominent role in establishing the HERA-B experiment at DESY's HERA electron-proton collider. Before working at DESY, Schmidt-Parzefall spent some time at CERN's Intersecting Storage Rings.; Thirty ISR years: A discreet lunch event at CERN marked the 30th anniversary of the historic decision to go ahead with the Intersecting Storage Rings (ISR) at CERN. Among those present were Victor Weisskopf, CERN's Director General at the time, and Mervyn Hine, responsible for CERN's longterm planning under Weisskopf. The ISR, the world's first proton collider, came into operation in 1971, ahead of schedule, but was shut down in 1984, also ahead of schedule, as part of the bid to divert funds to LEP construction. The ISR, which used the idea of particle stacking to build up the stored beam intensity, was long regarded as a masterpiece of accelerator building, and blazed a trail for CERN's future accelerator projects. Many CERN specialists cut their accelerator teeth at the ISR.; ICTP Dirac Medal: The International Centre for Theoretical Physics (ICTP), Trieste, is awarding its 1995 Dirac Medal to Michael Berry of Bristol for his discovery of the non-integrable phase that arises in adiabatic processes in quantum theory. This effect was first detected in 1986 in an optics experiment by Tomita and Chiao in which the rotation of the polarization plane of a

  2. Preeclampsia - a risk factor for osteoporosis? Analysis of maternal Sclerostin levels and markers of bone turnover in patients with pre-eclampsia.

    Science.gov (United States)

    Wild, Julia; Pateisky, Petra; Küssel, Lorenz; Huf, Wolfgang; Ott, Johannes; Haslinger, Peter; Knöfler, Martin; Zeisler, Harald

    2014-08-01

    The role of preeclampsia (PE) in affecting bone metabolism could not be clarified in the past years. Recently Sclerostin, a new marker of bone metabolism which is known to have an inhibitory effect on bone formation causing osteoporosis, was discovered. To investigate serum levels of Sclerostin and markers of bone turnover in women with normotensive pregnancies and pregnancies complicated by PE. In this prospective study we enrolled 22 women with PE and 22 healthy pregnant women to observe serum levels of carboxyterminal propeptide of type I collagen (PICP), cross-linked carboxyl terminal telopeptide of the type I collagen (ICTP), calcium, phosphate, 25-hydroxyvitamin D and parathyroid hormone. In 16 preeclamptic and 16 healthy pregnant women, serum Sclerostin levels were analyzed. Serum levels of Sclerostin (mean ± standard deviation: healthy 10.5 ± 8.1 pmol/l versus PE 11.5 ± 9.4 pmol/l, p = 0.768), ICTP (healthy 0.3 ± 0.2 ng/ml versus PE 0.4 ± 0.1 ng/ml, p = 0.462), PICP (healthy 59.9 ± 49.9 ng/ml versus PE 89.0 ± 62.0 ng/ml, p = 0.094), phosphate (healthy 1.1 ± 0.2 mmol/l versus PE 1.2 ± 0.4 mmol/l, p = 0.162) and parathyroid hormone (healthy 26.9 ± 14 pg/ml versus PE 35.3 ± 17.6 pg/ml, p = 0.08) showed no significant differences between the groups. Significantly lower serum calcium (healthy 2.3 ± 0.1 mmol/l versus PE 2.2 ± 0.2 mmol/l, p < 0.005) and serum 25-Hydroxyvitamin D (healthy 39.3 ± 16.7 nmol/l versus PE 23.9 ± 16.9 nmol/l, p < 0.005) were observed in preeclamptic women. Pregnancies complicated by PE show no signs of high bone turnover and may not lead to a higher risk of osteoporosis in later life.

  3. Assessment of ENSEMBLES regional climate models for the representation of monthly wind characteristics in the Aegean Sea (Greece): Mean and extremes analysis

    Science.gov (United States)

    Anagnostopoulou, Christina; Tolika, Konstantia; Tegoulias, Ioannis; Velikou, Kondylia; Vagenas, Christos

    2013-04-01

    The main scope of the present study is the assessment of the ability of three of the most updated regional climate models, developed under the frame of the European research project ENSEMBLES (http://www.ensembles-eu.org/), to simulate the wind characteristics in the Aegean Sea in Greece. The examined models are KNMI-RACMO2, MPI-MREMO, and ICTP - RegCM3. They all have the same spatial resolution (25x25km) and for their future projections they are using the A1B SRES emission scenarios. Their simulated wind data (speed and direction) were compared with observational data from several stations over the domain of study for a time period of 25 years, from 1980 to 2004 on a monthly basis. The primer data were available every three or six hours from which we computed the mean daily wind speed and the prevailing daily wind direction. It should be mentioned, that the comparison was made for the grid point that was the closest to each station over land. Moreover, the extreme speed values were also calculated both for the observational and the simulated data, in order to assess the ability of the models in capturing the most intense wind conditions. The first results of the study showed that the prevailing winds during the winter and spring months have a north - northeastern or a south - south western direction in most parts of the Aegean sea. The models under examination seem to capture quite satisfactorily this pattern as well as the general characteristics of the winds in this area. During summer, winds in the Aegean Sea have mainly north direction and the models have quite good agreement both in simulating this direction and the wind speed. Concerning the extreme wind speed (percentiles) it was found that for the stations in the northern Aegean all the models overestimate the extreme wind indices. For the eastern parts of the Aegean the KNMI and the MPI model underestimate the extreme wind speeds while on the other hand the ICTP model overestimates them. Finally for the

  4. Providing tailored climate information to forest fire stakeholders and end-users

    Science.gov (United States)

    Giannakopoulos, Christos; Kotroni, Vasso; Lagouvardos, Kostas; Korakaki, Evi; Hatzaki, Maria; Tenentes, Vassilis; Roussos, Anargyros; Karali, Anna; Goodess, Clare

    2013-04-01

    complement the two web-based tools and to further expand knowledge in fire risk modeling to address the needs for in-depth training. An initial version of this educational software tool was presented in the first CLIMRUN summer school, held at ICTP, Trieste in October 2012 (http://cdsagenda5.ictp.trieste.it/askArchive.php?base=agenda&categ=a1257&id=a1257/announcement) .

  5. New biochemical markers of bone resorption derived from collagen breakdown in the study of postmenopausal osteoporosis.

    Science.gov (United States)

    Guerrero, R; Diaz Martin, M A; Diaz Diego, E M; Disla, T; Rapado, A; de la Piedra, C

    1996-01-01

    The aim of this work was to perform a comparative study between three recently developed biochemical markers of bone resorption derived from collagen metabolism--(1) total urinary free pyridinolines (Pyr), (2) serum pyridinoline cross-linked carboxy-terminal telopeptides of type I collagen (ICTP) and (3) a urinary-specific sequence for a part of the C-telopeptide of the alpha 1 chain of type I collagen (CTX)--in the diagnosis and follow-up of postmenopausal osteoporosis. Results were also evaluated relative to the classical biochemical marker urinary hydroxyproline (Hyp). The study included 20 untreated osteoporotic postmenopausal women (OSP), age 60 +/- 6 years, range 46-69 years; 27 osteoporotic postmenopausal women treated (OSP-T) by cyclic therapy with disodium etidronate, 25-hydroxyvitamin D and calcium for a period between 3 months and 4 years (25 +/- 15 months), age 59 +/- 7 years, range 41-67 years; 17 osteopenic postmenopausal women, age 57 +/- 6 years, range 46 +/- 68 years; and 29 healthy control postmenopausal women, age 56 +/- 7 years, range 41-70 years. The diagnostic criterion for postmenopausal osteoporosis was a bone mineral density (BMD) (Hologic QDR-1000) in lumbar spine and/or femoral neck more than 2 SD below the mean value corresponding to an age- and sex-matched healthy control group. For inclusion in the osteopenic group BMD values had to be between 1 and 2 SD below the mean BMD value corresponding to the control group. We found a significant increase (p < 0.01) in the levels of Pyr/Cr and CTX/Cr (Cr = creatinine) in OSP patients with respect to the control group and we did not observe any significant difference between control and OSP-T or osteopenic women. It is interesting to note that there was a mean increase in CTX/Cr in OSP patients of 101% of the control values, while the mean increase found in Pyr/Cr concentration was only 33%. However, we did not find significant differences in the concentrations of ICTP and Hyp/Cr between groups

  6. Effects of combined estrogen/testosterone therapy on bone and body composition in oophorectomized women.

    Science.gov (United States)

    Flöter, A; Nathorst-Böös, J; Carlström, K; Ohlsson, C; Ringertz, H; Schoultz, B von

    2005-03-01

    To evaluate the effect of adding testosterone undecanoate 40 mg daily to estrogen therapy on bone markers, bone mineral density and body composition in oophorectomized women. Fifty women, 45-60 years old, who had undergone a hysterectomy and bilateral salpingo-oophorectomy for benign disorders, were randomly assigned to oral treatment with testosterone undecanoate 40 mg plus estradiol valerate 2 mg daily or placebo plus estradiol valerate 2 mg daily. Twenty-four weeks later, cross-over was performed to the other treatment regimen. Forty-four women completed the study. Their serum concentrations of insulin-like growth factor (IGF)-I, IGF binding protein (IGFBP)-3, osteocalcin, carboxyterminal telopeptide aminoterminal (ICTP), of type I collagen propeptide of type I procollagen (PICP) and interleukin (IL)-1 receptor antagonist were measured at baseline and after 24 weeks of both treatments, as were also their body mass index (BMI) and blood pressure. Bone mineral density of the total body, spine and hip and total body fat, total lean body mass, trunk fat and trunk lean mass were determined by dual-energy X-ray absorptiometry measurements at baseline and after 24 weeks of both regimens. During treatment, the addition of testosterone counteracted the decrease in IGF-I and PICP seen with estrogen therapy alone. Osteocalcin and ICTP were significantly reduced to the same extent by both therapies. No change ocurred in the IL-1 receptor antagonist. A significant increase was seen in total lean body mass with the estrogen/testosterone regimen, but the total fat mass, trunk lean or fat mass remained unchanged after 24 weeks of both treatments. No effect was detected on total, hip or spinal bone mineral density after treatment with estrogen alone or estrogen/testosterone. Likewise, BMI and blood pressure were unaffected. The addition of testosterone to oral estrogen might have positive effects on bone as suggested by the fact that it counteracted the decline in IGF-I and PICP

  7. Optics development in Africa

    CERN Document Server

    Buah-Bassuah, P K

    2002-01-01

    The case study of the Office of External Activities in Cape Coast, Ghana has turned out to be a successful story in promoting research and capacity building of young scientists. The total involvement of many organizations show how laudable the idea has been. This centre has come to serve as a place to solve scientific problems as well as problems of national interest. It is foreseen that its activities can be a means to congregate African scientists to solve common problems. I think the bold step taken by OEA and some organs of ICTP, Trieste, Italy, Lund Institute of Technology, Sweden and Istituto Nazionale di Ottica Applicata, Firenze, Italy has helped up and coming African scientists to come face to face with the challenges of Laser research. Such projects seem feasible and sustainable since experts in these areas can serve as contact persons in Africa to undertake common research using optical techniques. This project has made it possible to explore various areas in optics that can be used to solve proble...

  8. APS Wheatley Prize Talk

    Science.gov (United States)

    Glyde, Henry R.

    2001-03-01

    It is a pleasure to describe our collaborative program in International Development [1] between the University of Ottawa, Canada and Chulalongkorn University, Bangkok, Thailand. The goal of our linked program was broadly to develop physics and graduate education at Chulalongkorn with an emphasis on semiconductor materials and theoretical science. The aim of my description is to illustrate how links that combine several important components of development sustained over many years can greatly assist research institutions in developing countries. The link was initially funded between 1979-85 by the Canadian International Development Agency. The link included (1) Ph.D. education for junior Thai faculty at Ottawa, (2) secondment of faculty between Chulalongkorn and Ottawa, (3) equipment and technical assistance and (4) institution building at Chulalongkorn. With assistance of the link and other agencies the first Ph.D. program in physics in Thailand was initiated, the Semiconductor Physics Research Lab was created and the Forum for Theoretical Science was established. The FTS was also greatly assisted by ICTP. Later, activity involved the university of Delaware and the FTS obtained major funding for superconductivity research in Thailand from the USAID between 1987-91. The successes, disappointments, benefits and costs of these programs, which exist today, will be discussed. [1]Institutional Links. An example in science and technology, Henry R. Glyde and Virulh Sa-yakanit, Higher Education in Europe, X4, 51 (1985); Asia-Pacific Physics News 2, 29 (1987).

  9. Nuclear Data Newsletter, No. 50, November 2010

    International Nuclear Information System (INIS)

    2010-11-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and database news concerning nuclear data libraries, computer codes and coordinated research projects and lists selected charts, reports and documents on nuclear data. Further it contains meeting reports of the ICTP-IAEA Workshop on Nuclear Reaction Data for Advanced Reactor Technologies, 3-14 May 2010, the Consultants Meeting on Improvements and Extension to IRDF (International Reactor Dosimetry File), 5-7 May 2010, the 28th Meeting of the International Nuclear Data Committee, 25-28 May 2010, the 2nd Research Coordination Meeting (RCM) on Characterization of Size, Composition and Origins of Dust in Fusion Devices, 21-23 June 2010, the EXFOR Editor Training, 30 August-3 September 2010, the 3rd Research Coordination Meeting (RCM) on Surface Data for Composition Dynamics relevant to Erosion Processes, 13-15 September 2010, the Technical Meeting on International Code Centres Network, 27-28 September 2010, the Technical Meeting on Neutron Cross-Section Covariances, 27-30 September 2010, the Consultants Meeting on Database Needs for Plasma Modelling, 29-30 September 2010

  10. New Initiatives for International Cooperation for Nuclear Education in Russia

    International Nuclear Information System (INIS)

    Strikhanov, M.

    2014-01-01

    Final remarks: Planned activities under the IAEA/MePhI cooperation - Assistance in implementing the IAEA initiative on Virtual Nuclear Management University; • Collecting and preserving information on peaceful use of nuclear science and technology through the Russian International Nuclear Information System (INIS) Center; • Assistance in implementing the educational laboratories of Virtual Nuclear laboratories for CLP4NET and T urbine-installation of NPP with VVER-1000 reactor“ simulator; • Develop and implement the selected courses using the CLP4NET or other suitable platform (3 Master’s degree programs on Nuclear Engineering, Nuclear Reactors and Nuclear Nonproliferation); • Assistance in implementing the IAEA/ICTP School of NKM, August 2014 ; • A set of regional workshops on “The role of computer-based educational laboratories in Nuclear Engineering University Programmes”. New possible activities under the IAEA umbrella - • Cooperation with regional networks; • Establish a new network for Nuclear Education (CIS, EvrAzES, …) and develop together with other countries curricula, training programs and training materials on nuclear power and non-power applications; • Build public awareness of the benefits of nuclear technology and its applications; Support the IAEA in implementation of the selected courses in Member States. • Cooperation with foreign nuclear universities and training organizations for development of master and bachelor programs and postgraduate training

  11. Nuclear Desalination Newsletter, No. 2, September 2010

    International Nuclear Information System (INIS)

    2010-09-01

    Seawater desalination is increasingly becoming a vital option for alleviating severe water shortages around the world, and especially in developing countries. Worldwide seawater desalination capacity is expected to increase beyond the current contracted estimate of about 60 million m3/d. The need for an adequate supply of potable water for growing populations and complex problems is now globally recognized. Desalination using nuclear energy could play a vital role in supplying the much needed potable water for sustainable development and alleviate some of the environment impact of using fossil fuels for desalination. The IAEA programme on nuclear desalination continues to provide support to Member States through various forums of information exchange, technical cooperation projects, and publications. In the last year, the IAEA launched a new coordinated research programme which aims at investigating new technologies for seawater desalination using nuclear energy; updated and released a new version of the IAEA DEEP software; released a newly developed toolkit on nuclear desalination; and organized (jointly with the International Centre for Theoretical Physics ICTP) a training workshop on Technology and Performance of Desalination Systems

  12. Materials science and physics of non-conventional energy sources

    International Nuclear Information System (INIS)

    Furlan, G.; Nobili, D.; Sayigh, A.A.M.; Seraphin, B.O.

    1991-01-01

    Recently, many countries in the world have restructured their energy policy to include renewables, for example, in UK the Government expect that by the year 2010 it will be possible to meet 20% of the electricity supply by renewables. Photovoltaic is one of the easiest forms of changing sunlight into direct electricity. Research initiatives have reduced the cost of it from $1,000 per peak watt in 1960 to less than $5 per peak watt nowadays. It is anticipated that by the year 2000 this cost will be $2 per peak watt. ICTP has, since 1977, taken an active role in disseminating knowledge and promoting renewable energy through its massive programme, Physics of Renewable Energy. The aim is to help the developing countries in grasping the technology as well as the transfer of this technology through courses, seminars and workshops. These workshops are repeated every two years and the theme of them has gradually been changed to emphasize the high-powered physics associated with renewable energy and in particular material technology. The workshops are run for three weeks and include lectures, seminars, discussion, visits to industry and small task presentation. Although the Proceedings of these workshops emphasize mainly the photovoltaic conversion, technology and manufacturing facilities, a few other lectures on the state-of-the-art, development and potential of other forms of renewable energy are included. Refs, figs and tabs

  13. Nonlinear effects in water waves

    International Nuclear Information System (INIS)

    Janssen, P.A.E.M.

    1989-05-01

    This set of lecture notes on nonlinear effects in water waves was written on the occasion of the first ICTP course on Ocean Waves and Tides held from 26 September until 28 October 1988 in Trieste, Italy. It presents a summary and unification of my knowledge on nonlinear effects of gravity waves on an incompressible fluid without vorticity. The starting point of the theory is the Hamiltonian for water waves. The evolution equations of both weakly nonlinear, shallow water and deep water gravity waves are derived by suitable approximation of the energy of the waves, resulting in the Korteweg-de Vries equation and the Zakharov equation, respectively. Next, interesting properties of the KdV equation (solitons) and the Zakharov equation (instability of a finite amplitude wave train) are discussed in some detail. Finally, the evolution of a homogeneous, random wave field due to resonant four wave processes is considered and the importance of this process for ocean wave prediction is pointed out. 38 refs, 21 figs

  14. An explanation for the pseudogap states and the quantum phase transitions beneath the Dome

    Science.gov (United States)

    Cabo, Alejandro Genaro; Vielza, Yoandri; Domingues, Mauricio

    The work present the results of a model proposed to improve the understanding of the normal state of cuprate superconductors. The analysis reproduces the antiferromagnetic correlations and insulator character of these materials. Further, the discussion led to an outstanding prediction: the existence of well defined pseudogap states, which physical origin constitutes still today a debated question. The pseudogap emerges as a paramagnetic excited state, breaking the square crystal symmetry of the CuO planes in the same way as the AF order does it in the real material. The results defined the pseudogap effect as being of pure Coulomb origin. The Fermi surface exhibits the property defining its name: a momentum dependent gap which, that closes at the four corners of the Brillouin cell. The effect of the hole doping on both the AF-Insulator and the pseudogap states was investigated. The evolutions of the energy and band structure with hole doping, became able to predict the quantum phase transition (QPT) which La2CuO4 and other cuprate materials show at doping value, laying ``beneath'' the superconductor ``Dome''. The energies of the insulator and pseudogap states, both tend to coincide at a critical doping value of 0.2, at which the QPT is observed in the material. The doping evolution of the Fermi surface evaluated in for the insulator state, reproduce the experimental results for La2CuO4. We acknoweledge the support received from the Network of the ICTP Net-35.

  15. Sharing of fusion related technology among third world countries

    International Nuclear Information System (INIS)

    Lee, S.

    1987-01-01

    A program to initiate experimental plasma physics in developing countries has been started as a definite step for technology sharing. Cost effectiveness of several devices has been carefully considered from the viewpoint of physical mechanisms and existing technology. From this consideration emerges the plasma focus which whilst requiring no extraordinary technology yet could be packaged into a comprehensive facility for training in plasma production, plasma dynamics, plasma diagnostic and measurement of plasma x-rays, REB and fusion neutrons, with a very wide scope for the establishment of indigeneous training and research. It is shown that the simplicity of the approach is no barrier to the richness of plasma phenomena. Indeed the simplicity allows a clear comparison of pinch devices and, for example, enables two crucial limitations of existing plasma focus devices to be singled out, the overcoming of which could result in a many-fold jump in neutron yield. Hence the need for basic studies of these limitations. These and other studies could just as well be made on small devices. The UNU Training Programme resulted from the above consideration and evolved around the UNU/ICTP PFF, a small plasma focus with interesting physics and cost-effective technology. The extension of future training programmes to cover other important devices, for example, of the FRC type such as the Rotamak could widen the scope of this sharing of plasma and fusion technology. (author) [pt

  16. ATLAS virtual visit features Al-Quds University, a Palestinian university with campuses in Abu Dis and al-Bireh.

    CERN Multimedia

    claudia marcelloni

    2012-01-01

    Mon, 02 Apr - 14:00 CET (15:00 local) ATLAS virtual visit features Al-Quds University, a Palestinian university with campuses in Abu Dis and al-Bireh. As part of the "Physics Without Frontiers" project, funded by ICTP, Al-Quds is hosting a one day particle physics masterclass. During the day the students are given an introduction to particle physics, the LHC and the ATLAS Experiment, before having the chance to analyse real LHC data. This virtual visit comprises of a live tour around the ATLAS control room and the opportunity to ask questions to the ATLAS physicists. Al-Quds Physics has active research in accelerators, biophysics, laser, nuclear & particle, plasma, and solid state. A new collaboration is underway Forschungszentrum Jülich in spintronics, bioelectronics Alquds Physics is involved in the regional synchrotron SESAME in Jordan. Members include nine states from the region and over 10 observers worldwide. SESAME was established a long the same philosophy behind building CERN.

  17. Collaborative Research: Robust Climate Projections and Stochastic Stability of Dynamical Systems

    Energy Technology Data Exchange (ETDEWEB)

    Ghil, Michael; McWilliams, James; Neelin, J. David; Zaliapin, Ilya; Chekroun, Mickael; Kondrashov, Dmitri; Simonnet, Eric

    2011-10-13

    The project was completed along the lines of the original proposal, with additional elements arising as new results were obtained. The originally proposed three thrusts were expanded to include an additional, fourth one. (i) The e ffects of stochastic perturbations on climate models have been examined at the fundamental level by using the theory of deterministic and random dynamical systems, in both nite and in nite dimensions. (ii) The theoretical results have been implemented first on a delay-diff erential equation (DDE) model of the El-Nino/Southern-Oscillation (ENSO) phenomenon. (iii) More detailed, physical aspects of model robustness have been considered, as proposed, within the stripped-down ICTP-AGCM (formerly SPEEDY) climate model. This aspect of the research has been complemented by both observational and intermediate-model aspects of mid-latitude and tropical climate. (iv) An additional thrust of the research relied on new and unexpected results of (i) and involved reduced-modeling strategies and associated prediction aspects have been tested within the team's empirical model reduction (EMR) framework. Finally, more detailed, physical aspects have been considered within the stripped-down SPEEDY climate model. The results of each of these four complementary e fforts are presented in the next four sections, organized by topic and by the team members concentrating on the topic under discussion.

  18. Bone Remodelling Markers in Rheumatoid Arthritis

    Directory of Open Access Journals (Sweden)

    Patrice Fardellone

    2014-01-01

    Full Text Available Bone loss in rheumatoid arthritis (RA patients results from chronic inflammation and can lead to osteoporosis and fractures. A few bone remodeling markers have been studied in RA witnessing bone formation (osteocalcin, serum aminoterminal propeptide of type I collagen (PINP, serum carboxyterminal propeptide of type I collagen (ICTP, bone alkaline phosphatase (BAP, osteocalcin (OC, and bone resorption: C-terminal telopeptide of type 1 collagen (I-CTX, N-terminal telopeptide of type 1 collagen (I-NTX, pyridinolines (DPD and PYD, and tartrate-resistant acid phosphatase (TRAP. Bone resorption can be seen either in periarticular bone (demineralization and erosion or in the total skeleton (osteoporosis. Whatever the location, bone resorption results from activation of osteoclasts when the ratio between osteoprotegerin and receptor activator of nuclear factor kappa-B ligand (OPG/RANKL is decreased under influence of various proinflammatory cytokines. Bone remodeling markers also allow physicians to evaluate the effect of drugs used in RA like biologic agents, which reduce inflammation and exert a protecting effect on bone. We will discuss in this review changes in bone markers remodeling in patients with RA treated with biologics.

  19. Nicola Cabibbo (1935-2010)

    CERN Multimedia

    2010-01-01

      Nicola Cabibbo, one of the most important theoretical physicists of our time, died of cancer in Rome on 16 August, 2010 at the age of 75.   Copyright Massimo Silvano, ICTP Photo Archives. Before the discovery of quarks, he gave the correct formulation of the weak current couplings that in modern terms corresponds to the phenomenon of quark mixing. His formulation, in terms of the famous Cabibbo angle, was later extended to three families of fermions (and more recently also applied to neutrino mixing), and plays an essential role in the Standard Model of fundamental interactions. Over the years he applied his extremely lucid, deep and flexible mind to a wide range of problems, also including experiments, such as the measurement in 1963 of the electron helicity in muon decay, and the conception and design of the parallel computers APE, which he developed, starting in the early 1980s, for the simulation of the QCD theory of the strong interactions on discrete space-time. Highly respect...

  20. Medical physics is alive and well and growing in South East Asia.

    Science.gov (United States)

    Ng, K; Pirabul, R; Peralta, A; Soejoko, D

    1997-03-01

    In recent years there has been a significant economic growth in South East Asia, along with it a concurrent development of medical physics. The status of four countries--Malaysia, Thailand, the Philippines and Indonesia are presented. Medical physicists in these countries have been experiencing the usual problems of lack of recognition, low salaries, and insufficient facilities for education and training opportunities. However the situation has improved recently through the initiative of local enthusiastic medical physicists who have started MS graduate programs in medical physics and begun organizing professional activities to raise the profile of medical physics. The tremendous support and catalytic roles of the American Association of Physicists in Medicine (AAPM) and international organizations such as International Organization for Medical Physics (IOMP), International Atomic Energy Agency (IAEA), World Health Organization (WHO), and International Center for Theoretical Physics (ICTP) have been instrumental in achieving progress. Contributions by these organizations include co-sponsorship of workshops and conferences, travel grants, medical physics libraries programs, and providing experts and educators. The demand for medical physicists is expected to rise in tandem with the increased emphasis on innovative technology for health care, stringent governmental regulation, and acceptance by the medical community of the important role of medical physicists.

  1. Topical Treatment with Xiaozheng Zhitong Paste (XZP Alleviates Bone Destruction and Bone Cancer Pain in a Rat Model of Prostate Cancer-Induced Bone Pain by Modulating the RANKL/RANK/OPG Signaling

    Directory of Open Access Journals (Sweden)

    Yanju Bao

    2015-01-01

    Full Text Available To explore the effects and mechanisms of Xiaozheng Zhitong Paste (XZP on bone cancer pain, Wistar rats were inoculated with vehicle or prostate cancer PC-3 into the tibia bone and treated topically with inert paste, XZP at 15.75, 31.5, or 63 g/kg twice per day for 21 days. Their bone structural damage, nociceptive behaviors, bone osteoclast and osteoblast activity, and the levels of OPG, RANL, RNAK, PTHrP, IGF-1, M-CSF, IL-8, and TNF-α were examined. In comparison with that in the placebo group, significantly reduced numbers of invaded cancer cells, decreased levels of bone damage and mechanical threshold and paw withdrawal latency, lower levels of serum TRACP5b, ICTP, PINP, and BAP, and less levels of bone osteoblast and osteoclast activity were detected in the XZP-treated rats (P<0.05. Moreover, significantly increased levels of bone OPG but significantly decreased levels of RANL, RNAK, PTHrP, IGF-1, M-CSF, IL-8, and TNF-α were detected in the XZP-treated rats (P<0.05 for all. Together, XZP treatment significantly mitigated the cancer-induced bone damage and bone osteoclast and osteoblast activity and alleviated prostate cancer-induced bone pain by modulating the RANKL/RANK/OPG pathway and bone cancer-related inflammation in rats.

  2. Direct effects and feedback of desert dust on the climate of the Arabian Peninsula during the wet season: a regional climate model study

    Energy Technology Data Exchange (ETDEWEB)

    Islam, M.N.; Almazroui, Mansour [King Abdulaziz University, Center of Excellence for Climate Change Research, Department of Meteorology, PO Box 80234, Jeddah (Saudi Arabia)

    2012-11-15

    We investigate the dust radiative forcing and its feedback on the Arabian Peninsula's wet season climate using the International Centre for Theoretical Physics-Regional Climate Model (ICTP-RegCM4). We have found that the dust plumes exert a negative (positive) radiative forcing at the surface (top of the atmosphere) by reducing incoming solar radiation reaching the ground and locally heating up the atmosphere column. Consequently, the surface air temperature is cooler, hence indicating a decrease in the warm bias and an increase in the temperature gradient. This reduces the geopotential heights and enhances the low-level wind convergence, suggesting stronger upward motion. These changes increase evaporation, the difference between precipitation and evaporation in the atmosphere and rainfall over the Peninsula, indicating an intensification of the hydrologic cycle. The decrease in the precipitation dry bias and the large reduction in the temperature warm bias caused by the impact of dust over the entire Peninsula represent a significant success for the RegCM4 simulation. Therefore, the inclusion of dust in the simulation of the Arabian Peninsula's climate for the wet season contributes to an improved performance of this regional climate model over the region. (orig.)

  3. Climate-vegetation interactions in the coupled RegCM4 - CLM4.5 CNDV model

    Science.gov (United States)

    Caporaso, Luca; Giuliani, Graziano; Giorgi, Filippo

    2016-04-01

    We use the latest version of International Center for Theoretical Physics (ICTP) regional climate model (RegCM4) coupled with the Community Land Model version 4.5 (CLM4.5) including a dynamic vegetation model to study biogeophysical feedbacks in the climate system related to vegetation composition and structure. Sets of parallel experiments are conducted over the Africa and South America CORDEX domains using the RegCM4-CLM4.5 in its standard configuration and with the CNDV activated (CLM 4.5 with both the Carbon Nitrogen and the Dynamic Vegetation Model activated). The potential role of regional vegetation feedbacks within the climate system and the impact of climate variability and change on the ecosystem dynamics is assessed for both domains. In addition, the sensitivity to initial vegetation conditions and different idealized climate forcings is investigated. Preliminary results show that the changes in the climate forcing can have substantial effects on the dynamics and evolution of different vegetation types over both domains, and that the vegetation coupling can have a substantial effect on the simulated regional climate regimes. Our results thus indicate on the one hand that climate change can have profound effects on the evolution of important ecosystems for the two regions, and on the other that vegetation dynamics can indeed affect the climate response at the regional scale.

  4. Implementation and evaluation of online gas-phase chemistry within a regional climate model (RegCM-CHEM4)

    Energy Technology Data Exchange (ETDEWEB)

    Shalaby, A. K.; Zakey, A. S.; Tawfik, A. B.; Solmon, F.; Giorgi, Filippo; Stordal, F.; Sillman, S.; Zaveri, Rahul A.; Steiner, A. L.

    2012-05-22

    The RegCM-CHEM4 is a new online climate-chemistry model based on the International Centre for Theoretical Physics (ICTP) regional climate model (RegCM4). Tropospheric gas-phase chemistry is integrated into the climate model using the condensed version of the Carbon Bond Mechanism (CBM-Z; Zaveri and Peters, 1999) with a fast solver based on radical balances. We evaluate the model over Continental Europe for two different time scales: (1) an event-based analysis of the ozone episode associated with the heat wave of August 2003 and (2) a climatological analysis of a sixyear simulation (2000-2005). For the episode analysis, model simulations show good agreement with European Monitoring and Evaluation Program (EMEP) observations of hourly ozone over different regions in Europe and capture ozone concentrations during and after the August 2003 heat wave event. For long-term climate simulations, the model captures the seasonal cycle of ozone concentrations with some over prediction of ozone concentrations in non-heat wave summers. Overall, the ozone and ozone precursor evaluation shows the feasibility of using RegCM-CHEM4 for decadal-length simulations of chemistry-climate interactions.

  5. Implementation and evaluation of online gas-phase chemistry within a regional climate model (RegCM-CHEM4

    Directory of Open Access Journals (Sweden)

    A. Shalaby

    2012-05-01

    Full Text Available The RegCM-CHEM4 is a new online climate-chemistry model based on the International Centre for Theoretical Physics (ICTP regional climate model (RegCM4. Tropospheric gas-phase chemistry is integrated into the climate model using the condensed version of the Carbon Bond Mechanism (CBM-Z; Zaveri and Peters, 1999 with a fast solver based on radical balances. We evaluate the model over continental Europe for two different time scales: (1 an event-based analysis of the ozone episode associated with the heat wave of August 2003 and (2 a climatological analysis of a six-year simulation (2000–2005. For the episode analysis, model simulations show good agreement with European Monitoring and Evaluation Programme (EMEP observations of hourly ozone over different regions in Europe and capture ozone concentrations during and after the summer 2003 heat wave event. For long-term climate simulations, the model captures the seasonal cycle of ozone concentrations with some over prediction of ozone concentrations in non-heat wave summers. Overall, the ozone and ozone precursor evaluation shows the feasibility of using RegCM-CHEM4 for decadal-length simulations of chemistry-climate interactions.

  6. Virtual visits and Hangouts – how cool is CERN…

    CERN Multimedia

    Joannah Caborn Wengler

    2012-01-01

    New media are really making the world smaller. Using a simple lap-top and Vidyo® or Google Hangouts, you can visit experiments’ control rooms and ask physicists those questions you always wanted to ask, all from the comfort of your own home. Here’s how a few people connected with CERN recently.   Students from the Al-Quds University in the Palestinian West Bank participating in the ATLAS virtual visit. It was an old-fashioned aeroplane which took Kate Shaw of the Udine ICTP (Italy) ATLAS group to give a particle physics master class to about 20 students from Al-Quds University in the Palestinian West Bank, but it was via the ether that they were able to take a virtual visit of the ATLAS control room on 2 April. Without having to deal with with the complications of international air travel, they were able to see the experts, monitors and screens via two remote controlled cameras mounted on the ceiling of the ATLAS control room. By the door there is another screen, w...

  7. Proceedings of the workshop on nuclear reaction data and nuclear reactors: Physics, design and safety

    International Nuclear Information System (INIS)

    Oblozinsky, P.; Gandini, A.

    1999-01-01

    The objective of the work shop organized by IAEA in cooperation with ICTP, Trieste and ENEA, Rome was to train scientists and engineers, particularly from developing countries, in modern reactor theory, nuclear data production and data use, with particular emphasis on applications in nuclear reactor physics, design and safety. This type of training is of special importance in the era of decreasing support to nuclear reactor activities in many countries, with an unfortunate consequence of vanishing infrastructure and expertise. In fact, the Workshop represents, worldwide, the only forum where scientists and engineers can get extensive and up-to-date information on nuclear reaction data, including physical background and evaluation methodology, and their application in nuclear reactor calculations. The proceedings is arranged in three parts according to the main topics of the Workshop. Part 1 deals with nuclear reactor models, including neutron resonances, fission optical model, statistical and preequilibrium models as well as nuclear level densities. Part 2 is devoted to nuclear data filing and processing, including nuclear data evaluation, and formatting, data libraries and services, and nuclear data processing codes. Part 3 is devoted to physics of nuclear reactors

  8. Nuclear Data Newsletter, No. 51, May 2011

    International Nuclear Information System (INIS)

    2011-05-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and database news concerning nuclear data libraries, computer codes and coordinated research projects and lists selected charts, reports and documents on nuclear data. Further it contains meeting reports of the Workshop on Nuclear Structure and Decay Data (NSDD): Theory and Evaluation, 11-15 October 2010, the Consultants Meeting on Neutron Cross Section Standards: Extending and Updating, 13-15 October 2010, the 3rd Research Coordination Meeting (RCM) on Minor Actinide Neutron Reaction Data (MANREAD), 19-22 October 2010, the ICTP-IAEA Workshop on Nuclear Data for Science and Technology: Analytical Applications, 8-12 November 2010, the Technical Meeting on XML Schema for Atoms, Molecules and Solids (XSAMS), 17-19 November 2010, the 3rd Coordination Meeting (RCM) on Heavy Charged-Particle Interaction Data for Radiotherapy, 22-26 November 2010, the 1st Research Coordination Meeting (RCM) on Spectroscopic and Collisional Data for Tungsten from 1 eV to 20 keV, 13-15 December 2010, the Consultants Meeting to Review Benchmarking of Nuclear Data for the Th/U Fuel Cycle, 20-22 December 2010

  9. Nuclear data and integral experiments in reactor physics

    International Nuclear Information System (INIS)

    Farinelli, U.

    1980-01-01

    The material given here broadly covers the content of the 10 lectures delivered at the Winter Course on Reactor Theory and Power Reactors, ICTP, Trieste (13 February - 10 March 1978). However, the parts that could easily be found in the current literature have been omitted and replaced with the appropriate references. The needs for reactor physics calculations, particularly as applicable to commercial reactors, are reviewed in the introduction. The relative merits and shortcomings of fundamental and semi-empirical methods are discussed. The relative importance of different nuclear data, the ways in which they can be measured or calculated, and the sources of information on measured and evaluated data are briefly reviewed. The various approaches to the condensation of nuclear data to multigroup cross sections are described. After some consideration to the sensitivity calculations and the evaluation of errors, some of the most important type of integral experiments in reactor physics are introduced, with a view to showing the main difficulties in the interpretation and utilization of their results and the most recent trends in experimentation. The conclusions try to assign some priorities in the implementation of experimental and calculational capabilities, especially for a developing country. (author)

  10. Vitamin D status and bone and connective tissue turnover in brown bears (Ursus arctos) during hibernation and the active state.

    Science.gov (United States)

    Vestergaard, Peter; Støen, Ole-Gunnar; Swenson, Jon E; Mosekilde, Leif; Heickendorff, Lene; Fröbert, Ole

    2011-01-01

    Extended physical inactivity causes disuse osteoporosis in humans. In contrast, brown bears (Ursus arctos) are highly immobilised for half of the year during hibernation without signs of bone loss and therefore may serve as a model for prevention of osteoporosis. To study 25-hydroxy-vitamin D (25OHD) levels and bone turnover markers in brown bears during the hibernating state in winter and during the active state in summer. We measured vitamin D subtypes (D₂ and D₃), calcitropic hormones (parathyroid hormone [PTH], 1,25-dihydroxy-vitamin D [1,25(OH)₂D]) and bone turnover parameters (osteocalcin, ICTP, CTX-I), PTH, serum calcium and PIIINP. We drew blood from seven immobilised wild brown bears during hibernation in February and in the same bears while active in June. Serum 25-hydroxy-cholecalciferol (25OHD₃) was significantly higher in the summer than in the winter (22.8±4.6 vs. 8.8±2.1 nmol/l, two tailed p-2p = 0.02), whereas 25-hydroxy-ergocalciferol (25OHD₂) was higher in winter (54.2±8.3 vs. 18.7±1.7 nmol/l, 2pbears between hibernation and the active state. Because hibernating brown bears do not develop disuse osteoporosis, despite extensive physical inactivity we suggest that they may serve as a model for the prevention of this disease.

  11. Nuclear data newsletter, No. 48, September 2009

    International Nuclear Information System (INIS)

    2009-09-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and database news concerning nuclear data libraries, computer codes and coordinated research projects and lists selected charts, reports and documents on nuclear data. Further it contains meeting reports of the IAEA Consultants Meeting on Phase space Database for External Beam Radiotherapy, 26-29 May 2009, the Technical Meeting of the International Network of Nuclear Reaction Data Centres, 25-26 May 2009, the EXFOR Editor Workshop, 27-29 May 2009, the 3rd Research Coordination Meeting on Development of a Reference Nuclear Database for Ion Beam Analysis, 27-30 April 2009, the IAEA/ICTP Workshop on A and M Data for Fusion Applications, Trieste, Italy, 20-30 April 2009, the 2nd Research Coordination Meeting of the MANREAD Coordinated Research Project, 31 March - 3 April 2009, the Consultants Meeting on International Database for Irradiated Graphite, 25-26 March 2009, the Technical Meeting of International Network of Nuclear Structure and Decay Data Evaluators, 23-27 March 2009, the Consultants Meeting on Spallation Reations, 12-13 March 2009, the 2nd Research Coordination Meeting on Data for Surface Composition Dynamics Relevant to Erosion Processes, 11-13 March 2009, the 3rd Research Coordination Meeting on Atomic Data for Heavy Element Impurities in Fusion Reactors, 4-6 March 2009

  12. Ageism Discrimination Crowdlynching Shames Physics Pretentions of Intellectual Honesty and Ethics: Extension Throughout Universities Shaming Education By Bankrupting Overdebted Student Defrauding: Caveat Emptor!!!

    Science.gov (United States)

    Isalie, J.; Codben, Druid; Seidwinder, Gruald; Heiller, Ereich; Young, Muddlekent; Stuntley, Hugene; Siegel, L. E. E.; Deliesie, Charlatan

    2014-03-01

    Ageism discrimination sociological-dysfunctionality crowdlynching shames physics pretentions of intellectual honesty and ethics! Extension to other departments:philo.,psych.,geo.,maths shames claims of honest education:BU,HU,NEU,UW,SDSU,ICTP/SISSA. Defrauding overdebted students, would be ``sciences'' become alas mere séances! Witness:70 year old Edward Siegel,PhD(70) firsts:multiband Hubbard-model decades pre-``Emery'' with Rosen/Feynman[IBM Conf.Comp./Math.(86)] trendy/ hyped ``Q-computing'' in ANN AI, google search-engine Page-Brin adaption; pre-trendy nanophysics [PSS(a) 11, 45(72);Scripta Met.13,913(79)];decade-earlier GMR discoverer[JMMM 7,312(78)] pre ``Fert''-``Gruenberg'' decade-earlier acoustic-emission F =ma rediscovery in Bak/BNL-hyped SOC; FUZZYICS Aristotle SoO rediscovery eliminating jargonial-obfuscation plaguing physics via implementation of Cohen-Stewart[Collapse of Chaos:Discovering Simplicity in ``Complex'' World] called for compl-icity/ simple-xity both simultaneously automaticallybig-`data'disambiguation via HoT;AMS Joint Mtg.(02) proofs:FLT;P ≠NPBSD conj.,Riemann-hypothesis as BEC; Benford's-law inversion discovering digits = bosons; (87) Majorana-fermion & HDM discoverer in complex-quantum-statistics in fractal-dimensions; ``it's a jack-in-the-box'' universe cosmology.

  13. http://www.hnykdxxb.com/PDF/201620/39.pdf

    Directory of Open Access Journals (Sweden)

    Wei Lu

    2016-10-01

    Full Text Available Objective: To study the malignant biology and bone metabolism after transcatheter vertebral arterial chemoembolization combined with zoledronic acid treatment of vertebral metastasis from lung cancer. Methods: A total of 46 cases of patients with vertebral metastasis from lung cancer treated in our hospital between May 2012 and December 2015 were selected and divided into two groups, observation group (n=23 received transcatheter vertebral arterial chemoembolization combined with zoledronic acid treatment and control group only received transcatheter vertebral arterial chemoembolization therapy. Eight weeks after treatment, serum was collected to determine the levels of tumor markers, invasive molecules and bone transformation indicators. Results: 8 weeks after treatment, serum CEA, NSE, Cyfra21-1, TK1, RCAS1, CatB, CatD, CatX, MMP7, MMP9, MMP13, N-MID, BALP, OC, PINP, β-CTX, NTX, ICTP and TRACP5b levels of observation group were significantly lower than those of control group. Conclusions: Transcatheter vertebral arterial chemoembolization combined with zoledronic acid treatment can more effectively kill the cancer cells in vertebral metastases, inhibit the secretion of protease and regulate bone metabolism balance.

  14. Reminiscences

    Science.gov (United States)

    Sakita, Bunji

    In the spring of 1967 I stayed at the ICTP in Trieste for five months. Towards the end of the stay K. C. Wali and I traveled to Israel, specifically the Weizmann Institute for ten days at the invitation of H. J. Lipkin. When we arrived in Israel we found that the atmosphere was extremely tense and people busy preparing for a war with the neighboring Arabic countries. Although the touristy places were deserted, we could manage to rent a car to visit many places including Jerusalem, Haifa and Acre. Since most of the young Israeli physicists had already been drafted, the physicists working at the Institute were mainly foreigners, among whom were H. Rubinstein, G. Veneziano and M. Virasoro. They were working together on superconvergence relations, which was a subject that I was also interested in at that time. In the discussions we had during this visit, the dual resonance program must have come up, since I remember that afterward in Trieste I started discussing with others about the possibility of constructing scattering amplitudes by summing only the s-channel resonance poles. We l Israel as scheduled on June 4 and the very next day in Ankara, Turkey we heard of the outbreak of the Six Day War…

  15. Nutritional value and fatty acid composition of some traditional Argentinean meat sausages Composição nutricional e perfil de ácidos graxos de embutidos tradicionais da Argentina

    Directory of Open Access Journals (Sweden)

    Mara Cristina Romero

    2013-03-01

    Full Text Available The aim of this study was to determine the nutritional composition (moisture, protein, carbohydrates, and total fat of some meat products produced in the northeastern Argentina, analyzing fatty acids composition, polyunsaturated/saturated fatty acid ratio PUFA/SFA ratio (polyunsaturated/ saturated fatty acids, n-6/n-3 ratio, and CLA (conjugated linoleic acid content. Thirty traditional meat products produced by different processes were used. The samples were classified into 4 different categories as follows: salamín (dry cured and fermented sausage, chorizos (raw sausage, chorizo ahumado (cooked and smoked sausage, and morcilla (cooked sausage. From the results obtained it can be said that the total carbohydrate contents of the salamín studied were slightly lower; fat content of raw chorizo was significantly lower, and protein content of chorizo ahumado was significantly higher than those comparison from databases from other regions of Argentina, USA, and Spain. Except for chorizo, which has a value lower than 0.4, the PUFA/SFA-stearic ratio of the other products were a little higher than those reported by other researchers. CLA (Conjugated linoleic acid contents between 0.03% and 0.19% were detected. The results obtained indicate that salamín produced in northeastern Argentina, Chaco state, shows high protein and PUFA (Polyunsaturated fatty acids contents, and low atherogenic and thrombogenic indexes, which makes it a more healthful product than those of similar composition produced in other countries.O objetivo deste trabalho foi determinar a composição nutricional de alguns produtos de carne elaborados no nordeste da Argentina, a análise da composição dos ácidos graxos, conteúdo de CLA, relações AGPI/AGS e n-6/n-3. Trinta produtos tradicionais de carne a partir de processos diferentes foram utilizados. As amostras foram classificadas em 4 categorias: Salamin (embutido seco e fermentado, chorizo (linguiça, chorizo ahumado (lingui

  16. Can the biogenicity of Europa's surfical sulfur be tested simultaneously with penetrators and ion traps?

    Science.gov (United States)

    Chela-Flores, J.; Bhattacherjee, A. B.; Dudeja, S.; Kumar, N.; Seckbach, J.

    2009-04-01

    miniaturized mass spectrometry. From these arguments we may conclude that a penetration of measuring instruments (penetrators) into the icy surface of Europa just beyond the few millimeters beyond the stopping-depth would be sufficient for an accurate estimate of the delta-34 S parameter. This would be a possible way for rejecting, or supporting, the hypothesis of biogenicity of the Europan sulfur patches. The fact that missions such as LAPLACE, or others, can envisage, and undertake, such measurements (in the foreseeable future) is of the utmost importance for astrobiology's most significant question: Are there other environments in our own Solar System where we could settle the question of habitability, by making use of the available technologies? These results suggest that with the optimum stopping-depth we have calculated, sulfate-reducing bacteria would leave a measurable trace of their activity that is not affected by the harsh external environment. In addition, we have related sulfur transport in microbial mats that are known to take place in the Antarctica subglacial lakes with a mechanism that might rationalize what is taking place in the sulfur patches of the icy surface of Europa. Lake Vostok has given us preliminary hints from microorganisms retrieved from the accreted ice that lies just above its still-unexplored liquid water. References (*) Blanc, M. and the LAPLACE consortium (2008) LAPLACE: a mission to Europa and the Jupiter System, Astrophysical Instruments and Methods, in press, http://www.ictp.it/~chelaf/ss186.html,Team Members http://www.ictp.it/~chelaf/ss164.html. Chela-Flores J. and Kumar N. (2008) Returning to Europa: Can traces of surficial life be detected? International Journal of Astrobiology 7: (3), 263-269, http://journals.cambridge.org/repo_A28gqjIw Chyba, C. (2000) Energy for microbial life on Europa, Nature 403: 381-383. Dudeja, S., Bhattacherjee, A. B. and Chela-Flores, J. (2009) Microbial mats in Antarctica as models for the search of life on

  17. Studies on house dust mites in Great Cairo, Egypt.

    Science.gov (United States)

    Koraiem, M K; Fahmy, I A

    1999-01-01

    Nowadays, house dust mites have showed themselves as one of the health problem worldwide. They have to be considered in the differential diagnosis of allergy particularly in children. House dust mites were collected from eight different areas in Great Cairo. Nine species of mites were recovered from indoors. In order of abundance, they were Dermatophagoides pteronyssinus, D. farinae, Tyrophagous putrescentiae, Acarus siro, Cheyletus malaccensis, Blomia kulagini, Acheles graciles, Ornithonyssus bacoti and Lepidoglyphus destructor. All these mites were collected mainly from Bolak Al Dakrour (28.8%) and Al Wayly (27.6%). The least number (1.8%) and species (only three) were collected from Madent Al Salam. Pet and stray dogs and cats, domestic birds and commensal rodents were more or less reported in the majority of the examined areas. Also, patients with history of allergy of unknown cause, were reported in ten out of 80 houses examined (12.5%). The role played by house dust mites in causing allergic manifestations was important environmental disease agents.

  18. Lactose Intolerance and Symptom Pattern of Lactose Intolerance among Healthy Volunteers.

    Science.gov (United States)

    Saha, Madhusudan; Parveen, Irin; Shil, Bimal Chandra; Saha, Shasanka Kumar; Banik, Ranjit Kumar; Majumder, Monojit; Salam, Mahjuba Umme; Islam, Asm Nazmul

    2016-01-01

    To see the prevalence of lactose intolerance (LI) and related symptoms following oral lactose challenge in healthy volunteers. Symptoms of abdominal pain, nausea, borborygmi, flatulence, and diarrhea were noted for 24 hours and blood glucose was estimated at 0 hour and 30 minutes after 25 gm oral lactose load to healthy volunteers. Failure to rise blood glucose level ≥ 1.1 mmol/l at 30 minutes after lactose intake from fasting level was taken as lactose malabsorption (LM), i.e., LI. A total of 166 volunteers (123 males, 43 females) with a mean age 34.78 ± 11.45 years participated in this study. Lactose intolerance was found among 85.54% (n = 142, M = 104, F = 38). The main symptoms of LI were diarrhea (n = 83, 58.4.0%), borborygmi (n = 81, 57.04%), abdominal pain (n = 35, 24.65%), and flatulence (n = 27, 19.0%). Lactose intolerance among healthy adults may be common in Bangladesh. Diarrhea and borborygmi were mostly associated symptoms of LI. Saha M, Parveen I, Shil BC, Saha SK, Banik RK, Majumder M, Salam MU, Nazmul Islam ASM. Lactose Intolerance and Symptom Pattern of Lactose Intolerance among Healthy Volunteers. Euroasian J Hepato-Gastroenterol 2016;6(1):5-7.

  19. Twisted Spectral Triple for the Standard Model and Spontaneous Breaking of the Grand Symmetry

    Energy Technology Data Exchange (ETDEWEB)

    Devastato, Agostino, E-mail: agostino.devastato@na.infn.it; Martinetti, Pierre, E-mail: martinetti@dima.unige.it [Università di Napoli Federico II, Dipartimento di Fisica (Italy)

    2017-03-15

    Grand symmetry models in noncommutative geometry, characterized by a non-trivial action of functions on spinors, have been introduced to generate minimally (i.e. without adding new fermions) and in agreement with the first order condition an extra scalar field beyond the standard model, which both stabilizes the electroweak vacuum and makes the computation of the mass of the Higgs compatible with its experimental value. In this paper, we use a twist in the sense of Connes-Moscovici to cure a technical problem due to the non-trivial action on spinors, that is the appearance together with the extra scalar field of unbounded vectorial terms. The twist makes these terms bounded and - thanks to a twisted version of the first-order condition that we introduce here - also permits to understand the breaking to the standard model as a dynamical process induced by the spectral action, as conjectured in [24]. This is a spontaneous breaking from a pre-geometric Pati-Salam model to the almost-commutativegeometryofthestandardmodel,withtwoHiggs-likefields: scalar and vector.

  20. Flavor dynamics

    International Nuclear Information System (INIS)

    Kobayashi, Makoto

    1980-01-01

    The problems on quark mass and mixing angle are discussed. All discussions are made in the tree approximation, and no renormalization problem is considered. The basic quantities of the Weinberg-Salam (W-S) model are introduced. The model is SU(2) x U(1) gauge theory. The way of constructing the quark parts of Lagrangian, especially their mass terms, is described. The four-quark case is illustrated at first, then the discussion is extended to the general case. As a result, the number of parameters of the Cabibbolike mixing is obtained. The possibility of CP-violation is discussed. Phenomenological analyses are made to determine the parameters. The nuclear beta-decay and semileptonic decay, neutral K-meson system, and the possibility of CP-violation in the six-quark scheme are investigated. In order to understand the close relation between quark mass and mixing angle, the origin of quark mass term is investigated. The original Higgs coupling determines both the quark mass and mixing angle. A remarkable relation is deduced by assuming discrete symmetry. (Kato, T.)