Academic literature on the topic 'Great attractor'

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Journal articles on the topic "Great attractor"

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Lindley, David. "Not so Great Attractor?" Nature 356, no. 6371 (1992): 657. http://dx.doi.org/10.1038/356657a0.

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Bertschinger, Edmund, and Roman Juszkiewicz. "Searching for the great attractor." Astrophysical Journal 334 (November 1988): L59. http://dx.doi.org/10.1086/185312.

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Kaiser, N. "Where is the Great Attractor?" Nature 338, no. 6216 (1989): 538–39. http://dx.doi.org/10.1038/338538a0.

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Binggell, Bruno, and Renée KraanKorteweg. "Great attractor no longer attractive?" Physics World 4, no. 1 (1991): 25–26. http://dx.doi.org/10.1088/2058-7058/4/1/23.

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Stebbins, Albert, and Michael S. Turner. "Is the great attractor really a great wall?" Astrophysical Journal 339 (April 1989): L13. http://dx.doi.org/10.1086/185408.

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Peterson, I. "Looking Well beyond the Great Attractor." Science News 135, no. 15 (1989): 230. http://dx.doi.org/10.2307/3973333.

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Mathewson, DS. "The Great Attractor ? A Cosmic String?" Australian Journal of Physics 43, no. 2 (1990): 167. http://dx.doi.org/10.1071/ph900167.

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A brief review is made of the observational work on large-scale streaming motions in the Local Universe. There is considerable controversy as to whether the Great Attractor model of these streaming motions is correct. Preliminary results are presented of a southern sky survey of spiral galaxies to measure their peculiar velocities using the Tully-Fisher relationship. The region of strong peculiar motions has an elongated shape some 80� in angular extent centred roughly on the Great Attractor enclosing the brightest parts of the supergalactic plane. The peculiar velocities reverse in sign at a distance of 4000 km S-i which is conclusive evidence that such a dominant attracting region exists at that distance. However, there is little evidence of galaxies associated with this attracting mass and most galaxies appear to be participating in the streaming motions. The conclusion is that the attractor is largely invisible. It is proposed that a large moving loop of cosmic string is responsible for the peculiar velocities of the galaxies.
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Radburn-Smith, D. J., J. R. Lucey, P. A. Woudt, R. C. Kraan-Korteweg, and F. G. Watson. "Structures in the Great Attractor region." Monthly Notices of the Royal Astronomical Society 369, no. 3 (2006): 1131–42. http://dx.doi.org/10.1111/j.1365-2966.2006.10347.x.

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LUKASH, V. N. "The Great Attractor: A Challenge to Theory." Annals of the New York Academy of Sciences 647, no. 1 Texas/ESO-Cer (1991): 659–67. http://dx.doi.org/10.1111/j.1749-6632.1991.tb32216.x.

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Mathewson, D. S., V. L. Ford, and M. Buchhorn. "No Backside Infall into the Great Attractor." Highlights of Astronomy 9 (1992): 685. http://dx.doi.org/10.1017/s1539299600010042.

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AbstractWe have recently completed a survey of the peculiar velocities of 1355 southern spiral galaxies. The Tully – Fisher relation was used to estimate the distances to the spirals. The photometry was done in the I-band using CCDs on the lm telescope and the Anglo-Australian Telescope at Siding Spring Observatory. The rotational velocities were measured from 1042 H-alpha rotation curves obtained with the 2.3m telescope at SSO and 609 H 1 profiles obtained with the Parkes radio telescope.
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Dissertations / Theses on the topic "Great attractor"

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Raychaudhury, Somak. "Gravity, galaxies and the 'Great Attractor' survey." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334281.

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Mutabazi, Tom. "The distance to the Norma cluster and its relation to the great attractor region." Doctoral thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/15742.

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The Local Group's peculiar motion with respect to the cosmic microwave background has been measured with high precision and found to be ~627±22 km s-1, but the source of this motion is not clear. Studies to constrain the fractional contribution of the local mass overdensity, particularly in the Great Attractor region and the more distant Shapley Supercluster, remain contradictory. This work is an attempt to disentangle these contributions by measuring a redshift-independent distance to the Norma cluster, which lies at, or close to, the core of the Great Attractor, in order to determine its peculiar velocity. A reliable measurement of the distance and peculiar velocity of Norma will help clarify the velocity flows in the Great Attractor region. The challenge is with observing in the Zone of Avoidance since star crowding and Galactic extinction effects are severe at such low Galactic latitudes. High quality near-infrared images have been used in the photometric analysis for the Norma cluster sample so as to minimise the effect of Galactic extinction. In addition, the imaging cameras used have a small pixel scale resulting in well resolved images for reliable foreground star-subtraction hence accurate photometry. In order to determine the redshift-independent distance, I applied two independent, complemen- tary methods: the Fundamental Plane and the Tully-Fisher relations. The redshift-independent distance and the peculiar velocity of the Norma cluster were measured using 1) the Ks-band Fundamental Plane analysis for 31 galaxies using the 3.6m New Technology Telescope (NTT) at the European Southern Observatory (ESO) 2) the J- and Ks-band Fundamental Plane analysis for 31 galaxies using the Japanese 1.4 m InfraRed Survey Facility (IRSF) at the South African Astronomical Observatory (SAAO) 3) the combined NTT and IRSF Ks-band Fundamental Plane analysis for 41 galaxies 4) the Ks-band Tully-Fisher analysis for 12 galaxies using near-infrared images from the IRSF and HI profiles obtained from the 64-m Parkes radio telescope.
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Tagg, James. "Optimising the near-infrared survey strategy in unveiling hidden galaxies in the Great Attractor." Master's thesis, University of Cape Town, 2008. http://hdl.handle.net/11427/4408.

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Books on the topic "Great attractor"

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Page, Dany, and Jorge G. Hirsch, eds. From the Sun to the Great Attractor. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-45371-7.

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United States. National Aeronautics and Space Administration., ed. Mapping the Great Attractor region in X rays and diffuse X ray emission: A possible galactic wind in the bulge of M31 : final report. Smithsonian Astrophysical Laboratory, 1991.

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Chapple, Sue. A Book of great attraction. Thornes, 1992.

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Johnson, David. Sasol great garden birds: The best tips & advice from Africa, birds & birding. Africa Geographic, 2004.

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Britain), Wildlife Trusts (Great, ed. The garden bird handbook: How to attract, identify and watch the birds in your garden. New Holland, 2006.

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Britain), Wildlife Trusts (Great, ed. The garden bird handbook. New Holland, 2011.

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(London), Daily Telegraph, ed. Wildlife gardening. Cassell Illustrated, 2005.

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Fox, Addison. The royal spy's redemption. Harlequin Enterprise Limited, 2016.

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Dressler, Alan. Voyage To The Great Attractor. Random House Value Publishing, 1997.

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Is the great attractor really a great wall? Fermi National Accelerator Laboratory, 1989.

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Book chapters on the topic "Great attractor"

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Heavens, Alan. "Support for Inflation from the Great Attractor." In Observational Tests of Cosmological Inflation. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3510-8_39.

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Mullan, Dermott J. "Solar Physics: From the Deep Interior to the Hot Corona." In From the Sun to the Great Attractor. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-45371-7_1.

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Gai, Moshe. "Precision Laboratory Measurements in Nuclear Astrophysics." In From the Sun to the Great Attractor. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-45371-7_2.

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Rädler, Karl-Heinz. "The Generation of Cosmic Magnetic Fields." In From the Sun to the Great Attractor. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-45371-7_3.

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Kluźniak, Włodek. "Neutron Stars and Strong-Field Effects of General Relativity." In From the Sun to the Great Attractor. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-45371-7_4.

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Weekes, Trevor C. "Gamma Ray Astronomy at High Energies." In From the Sun to the Great Attractor. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-45371-7_5.

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Roulet, Esteban. "Neutrinos in Physics and Astrophysics." In From the Sun to the Great Attractor. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-45371-7_6.

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Sigl, Günter. "Particle and Astrophysical Aspects of Ultra-high Energy Cosmic Rays." In From the Sun to the Great Attractor. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-45371-7_7.

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Kraan-Korteweg, Renée C. "Galaxies Behind the Milky Way and the Great Attractor." In From the Sun to the Great Attractor. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-45371-7_8.

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Lukash, V. N. "Inflation, Great Attractor and Anisotropies of the Relic Radiation." In The Infrared and Submillimetre Sky after COBE. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2448-5_4.

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Conference papers on the topic "Great attractor"

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Dai, Jian-Hua, Hui Tang, and Hong-Jun Zhang. "Controlling Chaos in Nonlinear Optical System." In Nonlinear Optics. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/nlo.1992.tub3.

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Recently, the control of chaos has generated extensive interest and great progress has been made. In general, there are two methods of control, with and without feedback. Ott et al [1] demonstrated that a chaotic attractor typically has embedded with it an infinite number of unstable periodic orbits. By making small time-dependent perturbations of a system parameter, one can convert a chaotic attractor to periodic motion. The nonfeedback control method proposed by Hubler and Luscher [2]. In this report, we present a model of a piecewise function map for controlling chaos in a nonlinear hybrid optical bistable system.
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Colet, Pere, and Rajarshi Roy. "Control of Chaos in a Multimode Solid State Laser: Numerical Results." In Nonlinear Dynamics in Optical Systems. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/nldos.1992.tua2.

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The stabilization of unstable periodic orbits embedded in a chaotic attractor has received great attention recently. In the original algorithm proposed by Ott, Grebogi and Yorke [1] (OGY) control is achieved by means of small perturbations of a system parameter which are proportional to the deviation of the system from the unstable fixed point. A related but different technique to control a chaotic system is the occasional proportional feedback technique (OPF) [2]. Experiments demonstrating the control of chaos in a multimode solid state laser using this technique have been reported recently [3]. Here we study the theoretical model for such laser and compare with the experimental results.
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Kazakov, Konstantin, Doncho Partov, Irena Spiridonova, and Dobromir Dinev. "ABOUT THE CONCRETE BRIDGES OF THE GREAT BULGARIAN ENGINEER LALO RAYKOV (1923-1997)." In Assessment, maintenance and rehabilitation of structures. Association of Civil Engineers of Serbia, 2024. http://dx.doi.org/10.46793/sgisxiii.08kk.

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The authors present a short biography of the life and the achievements of the great Bulgarian bridge engineer L. Raykov in the field of the Concrete bridge design, in the occasions of 100 years from his born. The paper briefly describes the most interesting examples of deck-stiffened arch bridges designed by L. Raykov which are considered as a pioneering application of this type of structure in Bulgaria. Today these bridges after more than 60 years exploitation, still attract our interest not only with the dimensions of the structure but also with the technology used for their manufacturing and assembling of the bridge components.
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Skjelland, Ingvild, Karl-Anders Weiß, Michaela Meir, and John Rekstad. "Architecturally Appealing Solar Thermal Systems – A Great Marketing Tool in Order To Attract New Customers and Market Segments." In EuroSun 2010. International Solar Energy Society, 2010. http://dx.doi.org/10.18086/eurosun.2010.12.18.

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Hawdon, B. J., J. O'Gorman, D. M. Heffernan, and J. G. McInerney. "Dimensionality Studies of a Hybrid Optical Bistable System." In Optical Bistability. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/obi.1988.we.15.

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Recently there has been a great amount of interest in infinte-dimensional systems for which a delay parameter is defined. Le Berre et al1-2 have shown for several cases that as the delay parameter is increased the Lyapunov dimension (DL) of the associated chaotic attractors increases roughly linearly, and by extrapolation make the conjecture that DL would be infinite at the adiabatic limit.
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Kucheruk, Irina. "Peculiarities of cultural part of New Great Game in the Caspian region in terms of games." In "The Caspian in the Digital Age" within the framework of the International Scientific Forum "Caspian 2021: Ways of Sustainable Development". Dela Press Publishing House, 2022. http://dx.doi.org/10.56199/dpcsebm.ylxp7419.

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The Caspian region having cross-boundary specifics is now a center of attraction for various countries and powers that are interested in hydrocarbon reserves of the region, its geopolitical location and political impact on the Caspian countries that include former Soviet states in order to achieve their own geopolitical goals. Under these circumstances, the Russian Federation needs to choose the dominant strategy of action in the region that will enable to activate the relations between Russia and the Caspian states in various spheres including cultural and humanitarian cooperation. A cultural diplomacy can and must become such a strategy in a New Great Game for the Caspian region. Its effective component includes support of the compatriots, offer of educational programs at Russian universities and other educational institutions, promotion of the Russian language and literature. In the future all this will allow to achieve better results in the spread of the Russian soft power in the countries of “the Caspian four”, provided that this geopolitical resource is conceptualized, and active, not discreet steps, are made. To define effective strategy for soft power implementation in the Caspian region the game theory and the so-called Prisoner’s dilemma can be used. The latter has long been used for assessment and forecast the effectiveness of the international cooperation.
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Kingeski, Luciano, and Jordi Olivella Nadal. "International academic mobility: the attraction factors of Brazilians students in Spain." In Fourth International Conference on Higher Education Advances. Universitat Politècnica València, 2018. http://dx.doi.org/10.4995/head18.2018.8213.

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The mobility of university students abroad is a phenomenon of great importance in the context of globalization and internationalization of higher education. Certain factors, such as the image of the institution, the country, the city, the evaluation of the study program, the cost, selection processes and even personal resources can determine the destination country. This article seeks to identify the attraction factors for which Brazilian university students choose Spanish universities to carry out their higher education. An exploratory study of a qualitative nature was conducted, a semi-structured questionnaire applied to twenty-eight Brazilian students of official rank: graduation, master's degree and doctorate. Data analysis was based on the assessment of attraction factors. The results indicate that the language, the tradition of the Spanish universities, the scholarships of the country of origin and the more flexible selection processes are important factors in the decision of these subjects. Spain is an option for many international students and the flow of Brazilian students to this country is significant, the authors also consider that these flows may be much larger in the future.
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Shandarov, V., and S. Shandarov. "Effects of Light Beam Self-Action in Waveguides With Depth - Inhomogeneous Photorefraction." In The European Conference on Lasers and Electro-Optics. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/cleo_europe.1996.ctuk38.

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The inhomogeneity of photorefractive properties in electrooptic waveguides doped by special impurities may be substantial even within cross - section of light beams. It may considerably influence characteristics of photorefractive effects [1], including self - actions like spatial soliton formation attracted great attention for last years [2, 3].
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Brown, Paul T., Graeme W. Ross, Peter G. R. Smith, and Robert Eason. "Optical Control of Domain Structures in Lithium Tantalate." In The European Conference on Lasers and Electro-Optics. Optica Publishing Group, 1998. http://dx.doi.org/10.1364/cleo_europe.1998.ctua5.

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The patterning of domain structures in ferroelectric crystals continues to attract great interest for numerous non linear optical and photonic applications, including blue light generation from semi-conductor diode lasers, via quasi phase matching.
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Kobayashi, Takayoshi, Masayuki Yoshizawa, and Yasuhiro Hattori. "Determination of Spectral and Temporal Response of Various Ultrafast Optical Nonlinear Processes in Polydiacetylenes." In Nonlinear Optics. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/nlo.1992.fb8.

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Time evolutions of photoexcitations in several poly diacetylenes (PDAs), which attracted great interest in recent years because of their large and fast optical nonlinearities, were investigated by femtosecond absorption spectroscopy [1-4]. Here in this paper we for the first time could resolve four different nonlinear optical responses in PDAs both time and frequency dependence.
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Reports on the topic "Great attractor"

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Ryan, Mark David, Greg Hearn, Marion McCutcheon, Stuart Cunningham, and Katherine Kirkwood. Australian Cultural and Creative Activity: A Population and Hotspot Analysis: Albany and Denmark. Queensland University of Technology, 2021. http://dx.doi.org/10.5204/rep.eprints.213126.

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Located a 45-minute drive apart from each other in WA’s Great Southern Region, Albany and Denmark attract creative practitioners who are drawn to the region’s natural beauty and country lifestyle. A regional services hub, Albany has a robust creative services presence with a legacy media sector that functions as a hub for public and commercial media organisations servicing Great Southern and the Wheatbelt. Denmark, while a much smaller town, is renowned nationally as an enclave for locally, nationally, and internationally acclaimed artists and creatives.
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Jeong, Stephen, Sarah Stawiski, Sol Bukin, and Heather Champion. Stemming the Great Resignation through Leadership Development. Center for Creative Leadership, 2022. http://dx.doi.org/10.35613/ccl.2022.2051.

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The recent rise in voluntary turnover has sparked a renewed focus on attracting and retaining talent. In their attempts to stem the tide of the Great Resignation, organizations are augmenting traditional retention strategies – e.g., higher pay, enhanced benefits, more opportunities for career advancement etc. – with remote and hybrid work schedules brought about by the COVID pandemic. Given its inherent appeal to both employees and organizations, leadership development (LD) opportunities have long been believed to play a crucial role in helping to attract and retain employees. While the body of existing correlational research does point to a positive relationship between LD opportunities and retention, there is scant research that elucidates the mechanism(s) that may help to bridge the two. Guided by existing research, this paper examined Center for Creative Leadership’s large database of program evaluation data to uncover those potential mechanisms. We found preliminary support for three specific outcomes of leadership development that may serve as potential mediators linking LD with retention; they include enhanced self-efficacy, meaningful connections, and capacity to engage followers. We conclude with implications of these findings for future research as well as some caveats related to our investigation.
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Sariciftci, Niyazi Serdar. CO2 Recycling: The Conversion of Renewable Energy into Chemical Fuels. AsiaChem Magazine, 2020. http://dx.doi.org/10.51167/acm00011.

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We want to bring the idea of conversion of CO2 into synthetic fuels (CO2 recycling) into attention, as a possible approach for transportable storage of renewable energy. Recycling of CO2 by homogeneous and/or heterogeneous catalytic approaches have been investigated with increasing emphasis within the scientific community. In the last decades, especially using organic and bioorganic systems towards CO2 reduction has attracted great interest. Chemical, electrochemical, photoelectrochemical, and bioelectrochemical approaches are discussed vividly as new routes towards the conversion of CO2 into synthetic fuels and/or useful chemicals in the recent literature. Here we want to especially emphasize the new developments in bio-electrocatalysis with some recent examples.
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Chen, Li, Yu Ji, QiPeng Wang, and Peng Chen. Effects of traditional Chinese exercise on the treatment of COVID-19: a protocol for a systematic review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.1.0089.

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Review question / Objective: Since the end of December 2019, COVID-19 has caused a huge impact in many countries and has attracted great attention from countries around the world. In fact, many studies have shown that during the fight against the COVID-19 epidemic. Chinese traditional exercise play an active role in promoting human health. The main purpose of this study is to provide a reliable method and credible evidence to improve the prognosis of patients with COVID-19 through traditional Chinese exercise. Condition being studied: In recent years, a large number of studies have shown that traditional Chinese sports, as the traditional culture of the Chinese nation, have played a huge role in this new crown epidemic. Therefore, we will study the effect of traditional Chinese exercise on the prognosis and treatment effect of COVID-19 patients in a systematic review and analysis.
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Saavedra-Rivano, Neantro, Manuel R. Agosin, and Pablo Rodas Martini. The Emergence of China: A View from Central America. Inter-American Development Bank, 2004. http://dx.doi.org/10.18235/0008720.

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This study covers the impact of the emergence of China on Central American economies, with special emphasis on Guatemala and Honduras. The issue of the China¿s impact is generally approached from the standpoint of threats hovering over the economies of Central America (and of others in Region 2, such as Mexico and the Dominican Republic), without noting that the rapid growth and great openness of the Chinese economy also present new potentialities that the countries of the region could turn to their own advantage. This study presents analyses and recommendations for enhancing the competitive advantages already developed by Central American countries, particularly in the apparel and textiles sector, and others envisioned as possible, vis-à-vis the challenges that they face from the strong competitiveness of Chinese industries. But it also considers how to take advantage of the new opportunities offered by the Chinese market for exports of the region¿s goods and tourist services, and also the policies needed to begin to attract direct investment from that country.
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Moghtadernejad, Sara, Ehsan Barjasteh, Ren Nagata, and Haia Malabeh. Enhancement of Asphalt Performance by Graphene-Based Bitumen Nanocomposites. Mineta Transportation Institute, 2021. http://dx.doi.org/10.31979/mti.2021.1918.

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As the State of California continues to grow, demand for enhanced infrastructure such as roadways and highways escalates. In view of the current average highway lifespan of 15–20 years, the improvement of asphalt binders leads to material sustainability by decreasing required maintenance and increasing the lifespan of roadways. In the present investigation, enhancement of asphalt binder properties was achieved by different methods of mixing varying compositions of graphene nanoparticles with an SBS polymer and asphalt binder. Additionally, experimental evaluation and comparison of the rheological and mechanical properties of each specimen is presented. Graphene nanoparticles have attracted great curiosity in the field of highway materials due to their incredible rigidity, even in small quantities. Addition of as little as 1.0%nanoparticles in combination with polymers in an asphalt binder is expected to increase the rigidity of the material while also maintaining the beneficial polymer characteristics. Evaluation of the effect of the mixing design established that the methods for application of graphene to the polymer-modified asphalt binder are critical in the improvement of a roadway, resulting in resistance to premature aging and strain from constant road operation.
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Wang, Xiao, Hong Shen, Yujie Liang, Yixin Wang, Meiqi Zhang, and Hongtao Ma. Effects of physical activity interventions for post-COVID-19 patients: A protocol for systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.5.0036.

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Review question / Objective: Coronavirus disease 2019 (COVID-19) is a novel infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which has caused a huge impact in many countries and has attracted great attention from countries around the world. However, since the outbreak of the COVID-19 pandemic, most attention has focused on containing transmission and addressing the surge of critically ill patients in acute care settings. As we enter the second phase of the pandemic, emphasis must evolve to post care of COVID-19 survivors. A variety of persistent symptoms, such as severe fatigue, shortness of breath, and attention disorder have been reported at several months after the onset of the infection. We urgently need to identify safe and effective COVID-19 rehabilitative strategies. Overwhelming evidence exists that physical activity produces short-, middle- and long-term health benefits that prevent, delay, mitigate and even reverse a large number of metabolic, pulmonary and cardiovascular diseases. The purpose of this study was to evaluate the effects of physical activity interventions for rehabilitation of post-covid-19 patient and provide a reliable method and credible evidence to improve the prognosis of post-COVID-19 patients via systematic review and meta-analysis.
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12th Ibero-American Acoustics Congress & XXIX Sobrac Meeting. Sociedade Brasileira de Acústica (Sobrac), 2022. http://dx.doi.org/10.55753/aev.v37e54.214.

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Between August 28th and 31st, 2022, one of the most important and anticipated international events in the field of acoustics took place in the city of Florianópolis, in Santa Catarina - the 12th Ibero-American Acoustics Congress & XXIX Meeting of Sobrac. The event, initially scheduled to take place in 2020, had to be postponed due to the Covid-19 pandemic, but finally took shape two years later. With a schedule full of lectures, presentations, and workshops, as well as a business fair featuring the latest market developments, the congress attracted students, professors, and researchers from various areas of acoustics. In its four days, the congress had over 500 participants, surpassing the organizers’ expectations and being considered a great success. A brief overview of the event is presented in this article.
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