WorldWideScience

Sample records for 20th birthday world

  1. Happy 20th Birthday, World Wide Web!

    2009-01-01

    On 13 March CERN celebrated the 20th anniversary of the World Wide Web. Check out the video interview with Web creator Tim Berners-Lee and find out more about the both the history and future of the Web. To celebrate CERN also launched a brand new website, CERNland, for kids.

  2. AGS 20th anniversary celebration

    On May 22, 1980, a symposium was held at Brookhaven to celebrate the 20th birthday of the AGS, to recall its beginnings, and to review major discoveries that have been made with its beams. The talks at the symposium are recorded in this volume

  3. AGS 20th anniversary celebration

    Baggett, N.V. (ed.)

    1980-05-22

    On May 22, 1980, a symposium was held at Brookhaven to celebrate the 20th birthday of the AGS, to recall its beginnings, and to review major discoveries that have been made with its beams. The talks at the symposium are recorded in this volume.

  4. Modeling the evolution of the world ocean ice cover in the 20th and 21st centuries

    Kattsov, V. M.; Alekseev, G. V.; Pavlova, T. V.; Sporyshev, P. V.; Bekryaev, R. V.; Govorkova, V. A.

    2007-04-01

    The current state of the simulation of sea ice cover as a component of new-generation global climate models is considered. Results from the model ensemble simulation of the observed world ocean ice cover, including its evolution in the 20th century, are analyzed, and projection of possible changes in the 21st century for three scenarios of anthropogenic forcing of the climate system are described. Unresolved problems and priorities for sea ice modeling are discussed.

  5. Life on Other Worlds: The 20th- Century Extraterrestrial Life Debate

    Dick, Steven J.

    2001-06-01

    List of illustrations; List of tables; Acknowledgements; Introduction; 1. From the physical world to the biological universe: Democritus to Lowell; 2. Life in the solar system; 3. Solar systems beyond; 4. Extraterrestrials in literature and the arts: the role of imagination; 5. The UFO controversy and the extraterrestrial hypothesis; 6. The origin and evolution of life in the extraterrestrial context; 7. SETI: the search for extraterrestrial intelligence; 8. The meaning of life; 9. Summary and conclusion: the biological universe; Select bibliographical essay; Index.

  6. VNR of the 20th anniversary of the World Wide Web

    CERN Audiovisual Service

    2009-01-01

    Geneva, 13 March 2009. Web inventor Tim Berners-Lee returned to the birthplace of his invention today, 20 years after submitting his paper ‘Information Management: A Proposal’ to his boss Mike Sendall. By writing the words ‘Vague, but exciting’ on the document’s cover, and giving Berners-Lee the go-ahead to continue, Sendall was signing into existence the information revolution of our times: the World Wide Web. In September of the following year, Berners-Lee took delivery of a computer called a NeXT cube, and by December the Web was up and running, albeit between just a couple of computers at CERN1. Today’s event takes a look back at some of the early history, and pre-history, of the World Wide Web at CERN, includes a keynote speech from Tim Berners-Lee, and concludes with a series of talks from some of today’s Web pioneers. “It’s a pleasure to be back at CERN today,” said Berners-Lee. “CERN has come a long way since 1989, and so has the Web, but its roots will always be here.” The Wo...

  7. World population growth and fertility patterns, 1960-2000. A simple model explaining the evolution of world's fertility during the second half of the 20th Century

    Camps Cura, Enriqueta; Engerman, Stanley

    2008-01-01

    In this paper we attempt to describe the general reasons behind the world population explosion in the 20th century. The size of the population at the end of the century in question, deemed excessive by some, was a consequence of a dramatic improvement in life expectancies, attributable, in turn, to scientific innovation, the circulation of information and economic growth. Nevertheless, fertility is a variable that plays a crucial role in differences in demographic growth. We id...

  8. World Population Growth and Fertility Patterns, 1960-2000. A Simple Model Explaining the Evolution of World's Fertility During the Second Half of the 20th Century

    Enriqueta Camps

    2015-01-01

    In this paper we attempt to describe the general reasons behind the world population explosion in the 20th century. The size of the population at the end of the century in question, deemed excessive by some, was a consequence of a dramatic improvement in life expectancies, attributable, in turn, to scientific innovation, the circulation of information and economic growth. Nevertheless, fertility is a variable that plays a crucial role in differences in demographic growth. We identify infant m...

  9. Culture is not your friend: Psychedelic literature of the 20th century and its subversive effect in an industrial world

    Gunnar Jónsson

    2015-01-01

    In the middle of the twentieth century, Western writers, chemists, anthropologists and ethnobotanists introduced a hitherto oblivious Western culture to the peculiar effects of what is now called “psychedelic drugs.” Although many of these substances had been well known outside the Western world, often for thousands of years, they were completely novel to their new-found societies. The influence of psychedelics on the hippie generations of the 1960s and beyond was substantial and inspired imp...

  10. Happy Birthday Viki

    The CERN auditorium was packed on the 19th and 20th of September when friends and colleagues of Viktor Weisskopf gathered to celebrate the 80th birthday one of the best known and most admired personalities in the particle physics community. A galaxy of scientists was lined up to speak at an international colloquium on 'Science, Culture and Peace', organized by CERN and the Ettore Majorana Centre for Scientific Culture

  11. Theorizing and Rethinking Linkages Between the Natural Environment and the Modern World-System: Deforestation in the Late 20th Century

    Thomas J. Burns

    2015-08-01

    Full Text Available Building on prior work in world-system analysis and human ecology, we test a macro-level theory that social and demographic causes of deforestation will vary across zones of the modern world-system. Using multivariate regression analysis, we examine models of deforestation over the period 1990-2000. We test for main effects of world-system posmon, two different population variables (urbanization and proportion under working age, and economic development within zone, as well as for the contextual effects of these variables as they operate differently across world-system positions. Our findings indicate that generic models of deforestation need to be qualified, because the particular social factors most closely associated with deforestation tend to vary by position in the global hierarchy. Deforestation at the macro level is best explained by considering effects of socio-demographic processes contextually, in terms of world-system dynamics. We discuss the findings in a more general world-systems and behavioral ecological framework, and suggest the field will be well served with more precise theorizing and closer attention to scope conditions.

  12. The Islamic Reformist Movement in the Malay-Indonesia World in the First Four Decades of the 20th Century: Insights Gained from a Comparative Look at Egypt

    Giora Eliraz

    2014-03-01

    Full Text Available The transmission of Islamic reformist ideas from the Middle East, in particular from Egypt, to the Malay-Indonesian world stimulates interest in observing and examining this formative chapter in the history of the Islamic reformist movement in the Malay-Indonesian world by taking a comparative look at Egypt. Similarly, an observer of both the center of Islamic world and its "periphery" is surely tempted to try to link them. Hence, this article aims to search for the insights that may derive from such a comparative view. Of course, a comparative view of this type also has basically vulnerable points and biases which will be mentioned in this particular context in the course of the discussion. Not with-standing, it appears that taking Egypt as a comparative case study vis-a-vis the Malay-Indonesian world in this regard may enrich knowledge about this fascinating chapter in the modern history of the reformist movement in the Malay-Indonesian world. Perhaps it may even provide insights regarding the movement that go beyond the confines of the said period.Copyright (c 2014 by SDI. All right reserved.DOI: 10.15408/sdi.v9i2.666

  13. Two-Decade Development, Full of Gratitude——On the 20th Anniversary of Scitech Tower

    2007-01-01

    @@ On September 1,2007,Scitech Tower warmly celebrated its 20th birthday.As one of the first joint-ventured Office building,Scitech Tower has been insisting on its business principle of "Limited Space,Unlimited Service" and striving for customer satisfaction by improving facilities and providing superior services.Scitech Tower has been enjoying good reputation among its customers.

  14. The 20th HTF Gained Hard Wins

    2009-01-01

    @@ The 20th China Harbin International Economic and Trade Farir,opened on June 15 with 3,001 booths,one quarter more than last year,also drew a perfect ending on June 19,making forein deals of US$7.59,3 percent up than last year.

  15. Birthday Traditions in Different Countries%生日怎么过?

    2004-01-01

    @@ Some traditions are quite similar in many parts of the world; birthday candles which carry wishes up to God, birthday games which gauge how much more a child can do versus last year,and birthday pinches or taps which ensure good luck for the coming year. Some traditions are more specific to certain countries.

  16. Birthday TRADITIONS in Different Countries%不同国家的生日传统

    2007-01-01

    @@ Some traditions are quite similar in many parts of the world; birthday candles which carry wishes up to God, birthday games which gauge how much more a child can do versus last year, and birthday pinches or taps which ensure good luck for the coming year. Some traditions are more specific to certain countries.

  17. Apollo 11 Commemorative 20th Anniversary Logo

    1989-01-01

    The Apollo 11 mission, the first manned lunar mission, launched from the Kennedy Space Center, Florida via the Marshall Space Flight Center (MSFC) developed Saturn V launch vehicle on July 16, 1969 and safely returned to Earth on July 24, 1969. Aboard the space craft were astronauts Neil A. Armstrong, commander; Michael Collins, Command Module (CM) pilot; and Edwin E. Aldrin Jr., Lunar Module (LM) pilot. The CM, piloted by Michael Collins remained in a parking orbit around the Moon while the LM, named 'Eagle'', carrying astronauts Neil Armstrong and Edwin Aldrin, landed on the Moon. During 2½ hours of surface exploration, the crew collected 47 pounds of lunar surface material for analysis back on Earth. With the success of Apollo 11, the national objective to land men on the Moon and return them safely to Earth had been accomplished. This logo represents the Commemorative 20th Anniversary of the Apollo 11 Lunar mission. Housed inside the zero of the numeral twenty is the original flight insignia in which an Eagle descending upon the lunar surface depicts the LM, named 'Eagle''.

  18. The bosonic birthday paradox

    Arkhipov, Alex

    2011-01-01

    We motivate and prove a version of the birthday paradox for $k$ identical bosons in $n$ possible modes. If the bosons are in the uniform mixed state, also called the maximally mixed quantum state, then we need $k \\sim \\sqrt{n}$ bosons to expect two in the same state, which is smaller by a factor of $\\sqrt{2}$ than in the case of distinguishable objects (boltzmannons). While the core result is elementary, we generalize the hypothesis and strengthen the conclusion in several ways. One side result is that boltzmannons with a randomly chosen multinomial distribution have the same birthday statistics as bosons. This last result is interesting as a quantum proof of a classical probability theorem; we also give a classical proof.

  19. A Bibliographic Note and Table on Mid-19th to Mid-20th Century Western Travelogues and Research Reports on Gansu and Qinghai

    Bianca Horrleman

    2015-01-01

    Bianca Horrleman. 2015. A Bibliographic Note and Table on Mid-19th to Mid-20th Century Western Travelogues and Research Reports on Gansu and Qinghai in Gerald Roche, Keith Dede, Fernanda Pirie, and Benedict Copps (eds) Asian Highlands Perspectives 37 Centering the Local, A Festschrift for Dr. Charles Kevin Stuart on the Occasion of his Sixtieth Birthday, 36-38. Starting from the late nineteenth century, northwest China, Eastern Turkestan (modern Xinjiang), and eastern Tibet became incre...

  20. 65 Year Birthday Celebration's Prof. John Ellis.

    Benoit Jeannet

    2011-01-01

    On 13 September, physicists from around the world joined John Ellis at a colloquium to celebrate his 65th birthday, and as he ended his long career as a distinguished CERN staff member and joins King’s College London. Here he is in the audience with fellow theorists, Nobel laureate Gerard ’t Hooft and Chris Llewellyn Smith, former director-general of CERN.

  1. EDUCATIONAL POTENTIAL OF THE 20TH CENTURY PHILOSOPHICAL ADVENTURE FICTION

    Y. Y. Kozmina

    2015-03-01

    Full Text Available The paper explores the potential impact of studying the 20th century philosophical adventure fiction on educational process. In spite of the well-recognized idea of M. M. Bakhtin about the equality of classical and grotesque-fantastic aesthetic traditions, the former still predominates in the secondary and higher school curricula. The research aims to demonstrate the educational opportunities of the philosophical adventure fantasy; the content of the given concept being defined along with its specific features: unconditional world description, experimental plot type, discrepancy between the fantastic world created by the author and the real laws of nature, the hero’s experience in the alien world, related moral and philosophical problems.The author substantiates the idea of incorporating  the number of philosophical adventure novels into the Literature course in secondary schools, and the Theory and History of Literature course in  the higher schools of the humanities profile to facilitate the detailed and in-depth comprehension of theoretical topics concerning literary genres, types of literary heroes, grotesque adventure traditions, fantasy types, etc. 

  2. 20th Anniversary Conference on World Bank Administrative Tribunal

    2000-01-01

    Contents :"Review of discretionary power by international administrative tribunals" by Michel Gentot, "Checks exerted by administrative tribunals over the discretionary powers of international organizations" by Nicolas Valticos, "Comments" by Ranjan (C.F.) Amerasinghe, "The review of managerial discretion by international administrative tribunals" by Francisco Orrego Vicuña, "Some practical issue arising in international administrative tribunals" by Nassib G. Ziadé, "Aspects of judicial review of administrative action in the WBAT with comparative remarks" by Spyridon Flogaitis, "The International Monetary Fund Administrative Tribunal : its first six years" by Celia Goldman

  3. A Bibliographic Note and Table on Mid-19th to Mid-20th Century Western Travelogues and Research Reports on Gansu and Qinghai

    Bianca Horrleman

    2015-07-01

    Full Text Available Bianca Horrleman. 2015. A Bibliographic Note and Table on Mid-19th to Mid-20th Century Western Travelogues and Research Reports on Gansu and Qinghai in Gerald Roche, Keith Dede, Fernanda Pirie, and Benedict Copps (eds Asian Highlands Perspectives 37 Centering the Local, A Festschrift for Dr. Charles Kevin Stuart on the Occasion of his Sixtieth Birthday, 36-38. Starting from the late nineteenth century, northwest China, Eastern Turkestan (modern Xinjiang, and eastern Tibet became increasingly attractive destinations for foreign travelers and explorers. There was a veritable 'run' on the region, which was deemed one of the last blank spots on world maps. In addition, northwest China, Tibet, and Eastern Turkestan received special attention because of competition between the British and Russian empires as part of what is known as the Great Game in Central Asia. This caused other European countries such as France, Belgium, and Germany to fear that they would miss out on new geographic and scientific discoveries. Apart from geo-political, economic, and archeological incentives, Tibetan Buddhism also attracted considerable interest, although mostly on a 'touristic', rather than an academic, level.

  4. Essential shift: Scientific revolution in the 20th century

    Ismay, David K.

    1993-05-01

    With the publishing of Sir Isaac Newton's Principia Mathematica in 1687, a scientific paradigm was established that clearly dominated society for two and half centuries. Many historians of science have identified the Copenhagen interpretation of the quantum theory, formulated c.1927, as having completed a scientific revolution that ended the reign of classical Newtonian science. A rival claim to contemporary scientific revolution, however, has been put forward by Ilya Prigogine and the Brussels school of thermodynamics based on Prigogine's work in non-equilibrium thermodynamics. Using the historical consensus model of scientific revolution first articulated by Thomas S. Kuhn in 1962, this analysis examines the extent to which the Copenhagen interpretation of the quantum theory and the work of IIya Prigogine complete the conceptual, scientific paradigm-shift necessary for a scientific revolution. The resulting historical evidence shows that the Copenhagen interpretation did not complete a paradigm-shift; instead, it was a self-revelation by the scientific community which revealed the essence and fundamental limitations of Newtonian science. Evidence further indicates that the valid claim to scientific revolution in the 20th century lies with the contemporary work of Prigogine and the Brussels school. By abandoning the deterministic, mechanical world-view of the Newtonian paradigm and accepting a new reality of process and irreversible time, Prigogine and his associates have established the foundations for a revolutionary new scientific paradigm.

  5. NOAA-CIRES 20th Century Reanalysis (V2)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 20th Century Reanalysis version 2 (20CRV2)is an effort led by PSD and the CIRES at the University of Colorado to produce a reanalysis dataset spanning the...

  6. Constraining climate model parameters from observed 20th century changes

    Forest, Chris E.; Stone, Peter H; Sokolov, Andrei P.

    2008-01-01

    We present revised probability density functions for climate model parameters (effective climate sensitivity, the rate of deep-ocean heat uptake, and the strength of the net aerosol forcing) that are based on climate change observations from the 20th century. First, we compare observed changes in surface, upper-air, and deep-ocean temperature changes against simulations of 20th century climate in which the climate model parameters were systematically varied. The estimated 90% range of effecti...

  7. SEDA at 20: Some Staff and Educational Development Birthday Challenges and Celebrations

    Hall, Julie

    2013-01-01

    Invited to write a piece to mark SEDA's 20th birthday as SEDA co-chair, I have been excited and humbled by the task. In preparation I have read past editions of this journal and of the SEDA magazine, once called The New Academic and now called Educational Developments. I have reflected on my SEDA experiences and I have talked to people…

  8. External forcing of the early 20th century Arctic warming

    Lingling Suo

    2013-12-01

    Full Text Available The observed Arctic warming during the early 20th century was comparable to present-day warming in terms of magnitude. The causes and mechanisms for the early 20th century Arctic warming are less clear and need to be better understood when considering projections of future climate change in the Arctic. The simulations using the Bergen Climate Model (BCM can reproduce the surface air temperature (SAT fluctuations in the Arctic during the 20th century reasonably well. The results presented here, based on the model simulations and observations, indicate that intensified solar radiation and a lull in volcanic activity during the 1920s–1950s can explain much of the early 20th century Arctic warming. The anthropogenic forcing could play a role in getting the timing of the peak warming correct. According to the model the local solar irradiation changes play a crucial role in driving the Arctic early 20th century warming. The SAT co-varied closely with local solar irradiation changes when natural external forcings are included in the model either alone or in combination with anthropogenic external forcings. The increased Barents Sea warm inflow and the anomalous atmosphere circulation patterns in the northern Europe and north Atlantic can also contribute to the warming. In summary, the early 20th century warming was largely externally forced.

  9. Happy Birthday TREF!

    2014-01-01

    Last month marked the 20th anniversary of TREF, CERN’s Tripartite Employment Conditions Forum, which held its first meeting on 27 September 1994. TREF was established to provide a forum in which the Management, Council delegations and the staff would be able to have their say on employment conditions at CERN. Its mandate remains “to oversee the collection of information [about employment conditions at other employers] and to stimulate communication and discussion between representatives of the Member States, the CERN Management and the CERN Staff Association”.   TREF was preceded by a series of bodies, the first of which was established as far back as 1979, the year in which the concept of a five-yearly review of employment conditions was first introduced at CERN. Fifteen years later, the establishment of TREF marked a coming of age. TREF brought a new methodology to data collection activities, systematically looking at the employers that are CERN’s real co...

  10. Happy birthday, Jack Steinberger

    CERN Bulletin

    2016-01-01

    Even if he’s recently stopped coming to CERN on his bike, Jack Steinberger and his piercing blue eyes are still regular visitors to our corridors. As he celebrates his 95th birthday, we pay tribute to one of CERN’s greatest scientists.   Jack Steinberger in 2008, pictured on the occasion of the "Accelerating Nobel" exhibition. (Image: Claudia Marcelloni/CERN) Jack emigrated from Germany to the United States in 1934 to escape the persecution of the Jews. He later went on to study under Enrico Fermi in Chicago and in the 1950s, he contributed to the development of bubble chambers. Using this new detection apparatus, he was involved in the myriad discoveries and results that led to the construction of the Standard Model. In 1961, while at Columbia University (New York), he took part in the first experiment with a high-energy neutrino beam, which gave rise to the discovery of the muon neutrino. This discovery was awarded the&a...

  11. Rational Number Theory in the 20th Century

    Narkiewicz, Wladyslaw

    2012-01-01

    The last one hundred years have seen many important achievements in the classical part of number theory. After the proof of the Prime Number Theorem in 1896, a quick development of analytical tools led to the invention of various new methods, like Brun's sieve method and the circle method of Hardy, Littlewood and Ramanujan; developments in topics such as prime and additive number theory, and the solution of Fermat's problem. "Rational Number Theory in the 20th Century: From PNT to FLT" offers a short survey of 20th century developments in classical number theory, documenting between

  12. 20th CIRP International Conference on Life Cycle Engineering

    Song, Bin; Ong, Soh-Khim

    2013-01-01

    This edited volume presents the proceedings of the 20th CIRP LCE Conference, which cover various areas in life cycle engineering such as life cycle design, end-of-life management, manufacturing processes, manufacturing systems, methods and tools for sustainability, social sustainability, supply chain management, remanufacturing, etc.

  13. Educational Expansion and Social Mobility in the 20th Century

    Breen, Richard

    2010-01-01

    Sociologists consider inequality in educational attainment to be a major cause of inequality between people in their chances of occupying a more advantageous class position. However, there is dispute as to whether educational inequality according to social class background declined during the 20th century. What is not in doubt is the expansion of…

  14. NOAA-CIRES 20th Century Reanalysis (V2c)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 20th Century Reanalysis version 2c (20CRV2c)is an effort led by PSD and the CIRES at the University of Colorado to produce a reanalysis dataset spanning the...

  15. The Risorgimento in 20th century Italian political discourse

    Thomassen, Bjørn; Forlenza, Rosario

    2011-01-01

    what has remained constant in the memorization and actualization of the Risorgimento in the 20th century political discourse. We single out historical events, public rituals and public discourses unfolding in the context of symbolic years and anniversaries of the nation like 1911, 1932, and 1961 where...

  16. US Environmental Legislation and Biodiversity over the 20th Century

    Kaiser, Brooks

    2014-01-01

    back throughout the development of the United States over the 20th century and continues into the present. We trace this evolution of federal political action to ask how the evolution of U.S. wildlife legislation reflects the tradeoffs between environment and development in spatial and temporal...

  17. The Presidential Timeline of the 20th Century

    Resta, Paul; Flowers, Betty S.; Tothero, Ken

    2007-01-01

    This article describes the "The Presidential Timeline of the 20th Century," a newly unveiled website jointly created by the Learning Technology Center of The University of Texas at Austin and The National Archives' 12 presidential libraries. This web-based resource provides access to the continually growing store of digitized assets from the…

  18. Changes in the global freshwater N and P cycles over the 20th century

    Beusen, Arthur; van Beek, Rens; Bouwman, Lex; Mogollón, José; Middelburg, Jack

    2016-04-01

    Dramatic world-wide changes occurred during the 20th century in both nutrient delivery and in-stream retention. In this paper, we use a combined nutrient-input, hydrology, in-stream nutrient retention model to quantitatively track the changes in the global freshwater N and P cycles over the 20th century. Global nutrient delivery almost doubled due to expanding agriculture and increasing wastewater discharge. Nutrient retention also increased by a factor of two as a result of the rapidly growing number of dams and reservoirs. This increase in nutrient retention could not balance the increase in nutrient delivery to rivers. River export to coastal seas increased during the 20th century from 19 to 37 Tg yr-1 of N and 2 to 4 Tg yr-1 of P. There are important differences in riverine N:P export ratios in various parts of the world resulting from the interplay of multiple processes and economic activities in different river basins. Increasing nutrient loading of freshwater systems is a threat to water quality. Furthermore, the global river export increase in the molar N:P ratio during recent decades may affect the ecology within both the river basins and the coastal system. This ratio change may be driven by the recent stagnation of P fertilizer use in most industrialized countries, in comparison to the ever increasing N fertilizer use.

  19. A Special Forum on "20th Century British Women Writers"

    2010-01-01

    <正>This group of essays is written as part of a research project entitled "A Feminist Study of the 20th century British and American Women Writers"(GDUFS211- 1-005),supported by "211 Project" of Guangdong University of Foreign Studies. Feminist literary criticism gained irreversible momentum in 1960s with the rising of the second-wave feminist movement worldwide.The "gynocritics" advocated by Elaine Showalter draws researchers’ attention to the women’s experiences

  20. Weyl geometry in late 20th century physics

    Scholz, Erhard

    2011-01-01

    Weyl's original scale geometry of 1918 ("purely infinitesimal geometry") was withdrawn from physical theory in the early 1920s. It had a comeback in the last third of the 20th century in different contexts: scalar tensor theories of gravity, foundations of physics (gravity, quantum mechanics), elementary particle physics, and cosmology. Here we survey the last two segments. It seems that Weyl geometry continues to have an open research potential for the foundations of physics after the turn o...

  1. Weyl geometry in late 20th century physics

    Scholz, Erhard

    2011-01-01

    Weyl's original scale geometry of 1918 ("purely infinitesimal geometry") was withdrawn from physical theory in the early 1920s. It had a comeback in the last third of the 20th century in different contexts: scalar tensor theories of gravity, foundations of physics (gravity, quantum mechanics), elementary particle physics, and cosmology. Here we survey the last two segments. It seems that Weyl geometry continues to have an open research potential for the foundations of physics after the turn of the century.

  2. The top ten California floods of the 20th century

    Roos, Maurice

    1997-01-01

    The purpose of this paper is to summarize the biggest northern California floods of the 20th century. Flooding in California can occur from different causes. At least three types of floods occur: 1. Winter general floods, which cover a large area. 2. Spring and early summer snowmelt floods unique to the higher-elevation central and southern Sierra Nevada, which occur about once in 10 years on the average. 3. Local floods from strong thunderstorms, with intense rain over a ...

  3. A Birthday Attack on Roulette

    Chaudhuri, Ranjan

    2013-01-01

    A strategy for playing the game of roulette is presented in this paper. The strategy is based on the same probabilistic argument that leads to the well-known Birthday Paradox in Probability theory. Following the strategy, a player will have a positive expected gain per spin as well as in the long run despite the fact that the pay-off ratios in roulette favor the House.

  4. Immigration and Crime in Early 20th Century America

    MOEHLING, CAROLYN; Piehl, Anne Morrison

    2007-01-01

    Research on crime in the late 20th century has consistently shown that immigrants have lower rates of involvement in criminal activity than natives. We find that a century ago immigrants may have been slightly more likely than natives to be involved in crime. In 1904 prison commitment rates for more serious crimes were quite similar by nativity for all ages except ages 18 and 19 when the commitment rate for immigrants was higher than for the native born. By 1930, immigrants were less likely t...

  5. Constraining climate model parameters from observed 20th century changes

    Forest, Chris E.; Stone, Peter H.; Sokolov, Andrei P.

    2008-10-01

    We present revised probability density functions for climate model parameters (effective climate sensitivity, the rate of deep-ocean heat uptake, and the strength of the net aerosol forcing) that are based on climate change observations from the 20th century. First, we compare observed changes in surface, upper-air, and deep-ocean temperature changes against simulations of 20th century climate in which the climate model parameters were systematically varied. The estimated 90% range of effective climate sensitivity is 2-5 K but no corresponding upper bound can be placed on the equilibrium climate sensitivity. The net aerosol forcing strength for the 1980s has 90% bounds of -0.70 to -0.27 Wm-2. The rate of deep-ocean heat uptake corresponds to an effective diffusivity, Kv, with a 90% range of 0.04-4.1 cm2s-1. Second, we estimate the effective climate sensitivity and rate of deep-ocean heat uptake for 11 of the IPCC AR4 AOGCMs. By comparing against the acceptable combinations inferred from the observations, we conclude that the rates of deep-ocean heat uptake for the majority of AOGCMs lie above the observationally based median value. This implies a bias in the predictions inferred from the IPCC models alone.

  6. Constraining climate model parameters from observed 20th century changes

    Forest, Chris E.; Stone, Peter H.; Sokolov, Andrei P. (Massachusetts Inst. of Technology, Cambridge, MA 02139 (United States)). e-mail: ceforest@mit.edu

    2008-07-01

    We present revised probability density functions for climate model parameters (effective climate sensitivity, the rate of deep-ocean heat uptake, and the strength of the net aerosol forcing) that are based on climate change observations from the 20th century. First, we compare observed changes in surface, upper-air, and deep-ocean temperature changes against simulations of 20th century climate in which the climate model parameters were systematically varied. The estimated 90% range of effective climate sensitivity is 2-5 K but no corresponding upper bound can be placed on the equilibrium climate sensitivity. The net aerosol forcing strength for the 1980s has 90% bounds of -0.70 to -0.27 W/m2. The rate of deep-ocean heat uptake corresponds to an effective diffusivity, Kv , with a 90% range of 0.04-4.1 cm2/s. Second, we estimate the effective climate sensitivity and rate of deep-ocean heat uptake for 11 of the IPCC AR4 AOGCMs. By comparing against the acceptable combinations inferred from the observations, we conclude that the rates of deep-ocean heat uptake for the majority of AOGCMs lie above the observationally based median value. This implies a bias in the predictions inferred from the IPCC models alone

  7. Constraining climate model parameters from observed 20th century changes

    Forest, Chris E.; Stone, Peter H.; Sokolov, Andrei P. (Massachusetts Inst. of Technology, Cambridge, MA 02139 (US)). e-mail: ceforest@mit.edu

    2008-07-01

    We present revised probability density functions for climate model parameters (effective climate sensitivity, the rate of deep-ocean heat uptake, and the strength of the net aerosol forcing) that are based on climate change observations from the 20th century. First, we compare observed changes in surface, upper-air, and deep-ocean temperature changes against simulations of 20th century climate in which the climate model parameters were systematically varied. The estimated 90% range of effective climate sensitivity is 2-5 K but no corresponding upper bound can be placed on the equilibrium climate sensitivity. The net aerosol forcing strength for the 1980s has 90% bounds of -0.70 to -0.27 W/m2. The rate of deep-ocean heat uptake corresponds to an effective diffusivity, K_v , with a 90% range of 0.04-4.1 cm2/s. Second, we estimate the effective climate sensitivity and rate of deep-ocean heat uptake for 11 of the IPCC AR4 AOGCMs. By comparing against the acceptable combinations inferred from the observations, we conclude that the rates of deep-ocean heat uptake for the majority of AOGCMs lie above the observationally based median value. This implies a bias in the predictions inferred from the IPCC models alone

  8. The 20th Hadron Collider Physics Symposium in Evian

    Ludwik Dobrzynski and Emmanuel Tsesmelis

    The 20th Hadron Collider Physics Symposium took place in Evian from 16 to 20 November 2009. The Hadron Collider Physics Symposium series has been a major forum for presentations of physics at the Tevatron over the past two decades. The merger of the former Topical Conference on Hadron Collider Physics with the LHC Symposium in 2005 brought together the Tevatron and LHC communities in a single forum. The 20th Hadron Collider Physics Symposium took place in Evian, on the shores of Lake Geneva, from 16-20 November 2009, some 17 years after the historic ECFA-CERN Evian meeting in March 1992 when Expressions of Interest for LHC detectors were presented for the first time. The 2009 event was organized jointly by CERN and the French high-energy physics community (CNRS-IN2P3 and CEA-IRFU). More than 170 people registered for this symposium. This year’s symposium was held at an important time for both the Tevatron and the LHC. It stimulated the completion of analyses for a significant Tevatron data sam...

  9. Early 20th century acoustics apparatus in Iowa

    Hanson, Roger J.

    2001-05-01

    In the first half of the 20th century G. W. Stewart was a physics faculty member at the University of Iowa (UI) with a distinguished record of research and teaching, especially in acoustics. Much of his research focused on the design and use of several types of acoustical filters. Some apparatus which he developed or utilized are still housed in the Department of Physics and Astronomy or are available in detailed diagrams. Demonstration apparatus (apparently homemade) from his era are still available for use. Carl E. Seashore, a renowned psychologist also at UI in the early 20th century, had interdisciplinary interests linking psychology, speech and hearing, music, and acoustics. He was responsible for obtaining an Henrici harmonic analyzer, a mechanical Fourier analyzer manufactured in Switzerland, a special grant from the state legislature during Depression conditions provided the funding. It resides in the Department of Speech Pathology and Audiology at UI. The Grinnell College Physics Historical Museum houses a set of 18 Helmholtz resonators and a Savart bell and resonator. Apparatus at Iowa State University, the University of Northern Iowa, and other Iowa institutions will also be described. Pictures and diagrams as well as some actual apparatus will be exhibited.

  10. 25 years - Happy Birthday!

    IT Department

    2011-01-01

    The nasty PC virus turned twenty-five years this month. The very first computer virus ever was created in January 1986. Dubbed "©Brain", this virus was aiming to infect DOS-based PCs. While this instance was relatively harmless and their creators claim sincere intentions, the world has changed since then. Today's viruses and worms are malign and aim for making profit. They attack now everything connected to a network: Windows PCs, but also Linux PCs and Macs; iPhones and other mobile devices; directly the operating system, but also applications like Adobe Reader (PDF), Firefox, ... Thus, protect your computers from viruses and malware. Any unprotected computer connected to the Internet is likely to be infected within minutes! Keep your system up to date. Enable the regular automatic installation of updates/patches. If you can, use operating systems managed by CERN’s IT department; Use anti-virus software. The CERN anti-virus solution is even free for your home an...

  11. Taras Krokhmalskii's 60th birthday

    Editorial Board

    2013-06-01

    Full Text Available Taras Krokhmalskii, a senior research fellow of the Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine (ICMP, a renowned specialist in the field of condensed matter physics celebrated his sixtieth birthday on February 6, 2013. The editorial board of the "Condensed Matter Physics" joins numerous congratulations to him and wish him to stay in good health, implement his creative ideas, gain new achievements in science, and - last but not least - in his own peculiar way to grasp the Nature and tell us the tale.

  12. 20th International Conference on Difference Equations and Applications

    Ding, Yiming; Došlý, Ondřej

    2015-01-01

    These proceedings of the 20th International Conference on Difference Equations and Applications cover the areas of difference equations, discrete dynamical systems, fractal geometry, difference equations and biomedical models, and discrete models in the natural sciences, social sciences and engineering. The conference was held at the Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences (Hubei, China), under the auspices of the International Society of Difference Equations (ISDE) in July 2014. Its purpose was to bring together renowned researchers working actively in the respective fields, to discuss the latest developments, and to promote international cooperation on the theory and applications of difference equations. This book will appeal to researchers and scientists working in the fields of difference equations, discrete dynamical systems and their applications.

  13. CREAM Observation of January 20th Solar Flare

    Yoon, Y.; Ahn, H. S.; Allison, P.; Bagliesi, M. G.; Beatty, J. J.; Bigongiari, G.; Boyle, P.; Childers, J. T.; Conklin, N. B.; Coutu, S.; Duvernois, M. A.; Ganel, O.; Han, J. H.; Hyun, H. J.; Jeon, J. A.; Kim, K. C.; Lee, J. K.; Lee, M. H.; Lutz, L.; Maestro, P.; Malinine, A.; Marrocchesi, P. S.; Minnick, S.; Mognet, S. I.; Nam, S. W.; Nutter, S.; Park, H.; Park, I. H.; Park, N. H.; Seo, E. S.; Sina, R.; Swordy, S.; Wakely, S.; Wu, J.; Yang, J.; Zei, R.; Zinn, S. Y.

    2005-12-01

    The Cosmic Ray Energetics and Mass (CREAM) balloon instrument, designed to detect and measure the composition and spectra of high energy galactic cosmic ray particles, had its maiden flight on December 16 2004 and was afloat and taking data during the January 20th solar flare. The CREAM instrument consists of a finely segmented silicon charge detector, a timing charge detector, and several layers of scintillating fiber hodoscopes, as well as a calorimeter and transition radiation detectors to measure cosmic-ray energies above several hundred GeV. While the latter were not designed to be triggered by solar particles, signals were seen in the silicon charge detector and several layers of hodoscopes at the onset of the giant solar flare, indicating that solar flare particles were passing through the instrument. We will review our measurements and analysis of the data recorded during the solar flare.

  14. Discrete Mathematics - Special Issue: Graph Theory - dedicated to Carsten Thomassen on his 60th birthday

    Carsten Thomassen belongs to the worlds's absolute top graph theorists, and to the world's top mathematicians in general. The special issue is a rather somewhat random collection of good papers in graph theory, by many different authors, dedicated to Carsten Thomassen on his 60th birthday. Guest...

  15. Everglades Plant Community Response to 20th Century Hydrologic Changes

    Willard, D. A.; Bernhardt, C. E.; Holmes, C. W.; Weimer, L. M.

    2002-05-01

    Pollen records in sediment cores from sites in the historic Everglades allowed us to document the natural variability of the ecosystem over the past 2,000 years and contrast it to 20th century changes in wetland plant communities. The natural system included extensive water-lily sloughs, sawgrass ridges, and scattered tree islands extending from Lake Okeechobee southward through Shark River Slough. Between ~1000 AD and 1200 AD, weedy species such as Amaranthus (water hemp) became more abundant, indicating decreased annual rainfall, shorter hydroperiods, and shallower water depths during this time. After ~1200 AD, vegetation returned to its pre-1000 AD composition. During the 20th century, two phases of hydrologic alteration occurred. Completed by 1930, the first phase included construction of the Hoover Dike, canals linking Lake Okeechobee to the Atlantic Ocean, and the Tamiami Trail. Reconstructions of plant communities indicate that these changes shortened hydroperiods and lowered water depths throughout the Everglades. The extent of water-lily slough communities decreased, and tree islands became larger in Shark River Slough. The second phase resulted from construction of canals and levees in the 1950s, creating three Water Conservation Areas. The response of plant communities to these changes varied widely depending on location in the Everglades. In Loxahatchee NWR, weedy and short-hydroperiod plant species became more abundant in marshes, and species composition of tree islands changed. In Water Conservation Area 2A, cattail replaced sawgrass in marshes with high nutrient influx; the ridge and slough structure of the marshes was replaced by more homogeneous sawgrass marshes; sustained high water levels for more than a decade resulted in loss of tree islands that had existed for more than 1,000 years. In Everglades National Park, the extent of slough vegetation decreased further. Near Florida Bay, the rate of mangrove intrusion into fresh-water marshes

  16. Trade and the flag:integration and conflict in 19th and early 20th century deglobalization

    Chase-Dunn, Chris; Anders Carlson; Chris Schmitt; Shoon Lio; Richard Niemeyer; Hanneman, Robert A.

    2006-01-01

    The density and contours of networks of transnational and international economic integration are hypothesized by many theorists to be causally related to the patterns of cooperation and conflict. [1] The usual notion is that trade creates ties of symmetrical interdependence, which are likely to inhibit conflict. We seek to test this hypothesis in the 19th and early 20th century run-up to World War I. We examine the relationship between the structure of conflict and the contours of trade ties ...

  17. Lessons Learned and Present Day Challenges of Addressing 20th Century Radiation Legacies of Russia and the United States

    The decommissioning of nuclear submarines, disposal of highly-enriched uranium and weapons-grade plutonium, and processing of high-level radioactive wastes represent the most challenging issues facing the cleanup of 20th century radiation legacy wastes and facilities. The US and Russia are the two primary countries dealing with these challenges, because most of the world's fissile inventory is being processed and stored at multiple industrial sites and nuclear weapons production facilities in these countries

  18. 20th IAEA fusion energy conference 2004. Conference proceedings

    The 20th International Atomic Energy Agency (IAEA) Fusion Energy Conference (FEC) was held in Vilamoura, Portugal, from 1 to 6 November 2004. The Instituto Superior Tecnico through the Centro de Fusao Nuclear on behalf of the Portuguese Government and the Association EURATOM/IST hosted the conference. The IAEA wishes to express its gratitude to the host. More than 600 delegates representing 33 countries and three international organizations attended the Fusion Energy Conference 2004. The Programme Committee accepted a total of some 437 papers for presentation at the conference. The scientific experimental and theoretical papers have been grouped with respect to the following themes: Overview on magnetic and inertial fusion; Advanced Scenarios and Steady State; Edge Localized Modes; Fusion Technology; Transport Theory; Beta Limits; Hybrid Scenarios; H-mode and Transport; ITER; Alfven Modes and Wave Heating; Operational Limits and Momentum Transport; Energetic Particles and Stability; Neoclassical Tearing Modes; Transport and Turbulence; Inertial Fusion; Configuration Effects and Transport; and Plasma-wall Interaction. The conference adjourned with the announcement of the next IAEA Fusion Energy Conference, which will be held for the first time in the People's Republic of China, in the city of Chengdu, October 16-22, 2006

  19. 20th annual convention of Philippines Society of Nuclear Medicine

    The 20th Annual Convention of the PSNM took place in Manila and was attended by more than 100 registered participants, including nuclear medicine physicians, clinicians, residents, technologists, representative of the Atomic Energy Commission of Philippines and pioneers of nuclear medicine in the Philippines. The scientific program consisted of a series of review lectures covering a range of currently available radionuclide treatments and was carried out by three experts attending. The convention started with a brief opening ceremony presided over by the President of the PSNM. The whole day program was started in the morning and lasted till late afternoon. The proceedings started with an overview lecture, entitled 'Radionuclide Therapy from Palliation to Cure', which described the favorable characteristics of radionuclide therapy to serve as a palliative therapy and the current trend to move this treatment modality forward in the management protocol of several tumors to become part of a strategy with curative intent. This was followed by a number of lectures by the three speakers on a variety of topics, e.g., 'Radioimmunotherapy of Lymphoma', 'Radionuclide Therapy of Neuroendocrine Tumors', 'Palliation of Painful Bone Metastases palliative or curative?', 'Radionuclide Therapy of Hepatocellular Cancer', 'Radionuclide Therapy in Children' and 'Management of Problematic Thyroid Cancer'

  20. Celebrate Klubb Rouge’s First Birthday

    2008-01-01

    To celebrate its first birthday,Klubb Rouge is holding "experience night- life at Klubb Rouge" promotion in Beijing.To reward its patrons,Klubb Rouge will partner with various retailers in offering a one-month discount

  1. Extragalactic research in Europe and the United States in the early 20th century

    Duerbeck, H. W.

    2002-07-01

    While the theoretical foundations of modern relativistic cosmology were laid, to a large extent, by European researchers like Einstein, de Sitter, Friedmann, Lemaître, and others, observational cosmology was (and to a large extent, still is) dominated by US astronomers, working at Lick and Mt. Wilson observatories. From today's viewpoint, Hubble appears to dwarf all his - national and international - peers. However, Keeler and Curtis, Fath and Slipher carried out pioneering work in the US, as did Wolf, Wirtz, Lundmark, de Sitter in Europe, both by observation and by statistical analysis of data. European extragalactic research during the early 20th century is outlined and compared with studies in the United States. Reasons for the small impact of European research are a mixture of deliberate and accidental neglect and suppression, as well as the lack of technical and organizational infrastructure, which was especially noticeable after World War I.

  2. Atomic Pioneers Book 3 From the Late 19th to the Mid-20th Century

    Hiebert, Ray [University of Maryland; Hiebert, Roselyn

    1973-01-01

    This book tells the story of the atom by presenting a brief account of the lives and work of 24 atomic scientists who brought the world into the complex Age of the Atom by mid-20th century. The 24 are: Albert Einstein, James Franck, Max Born, Peter J.W. Debye, Niels Bohr, George von Hevesy, Henry G.J. Moseley, Gustav Hertz, Erwin Schrodinger, Otto Stern, James Chadwick, Arthur H. Compton, Louis Victor de Broglie, Harold C. Urey, John D. Cockcroft, Patrick M.S. Blackett, Isidor I. Rabi, Leo Szilard, Jean Frederic Joliot-Curie, Irene Joliot-Curie, Wolfgang Pauli, Ernest O. Lawrence, Enrico Fermi, and Robert J. Van de Graaff.

  3. „One-way ticket” Romanian Migration at the beginning of the 20th century

    Silvia Bocancea

    2011-12-01

    Full Text Available Unlike the new age of migration that we are experiencing now, the social mobility specific to the end of the 19th century and the beginning of the 20th century may be defined by the expression “one way ticket”; the immigrant, usually a man, used to leave his country of origin and settle for good in his host-country (he did not look for his happiness from state to state, as it happens now. The Romanian migration of that time was directed mainly towards the New World (particularly to the USA, and less to Canada. This paper is an attempt to sketch the image of Romanian emigration by taking into account the peculiarities determined by: emigration causes, geographical predominance, social composition, occupational options in the host-country, and the structure of Romanian immigrant communities.

  4. Global physical water scarcity trajectories for the 20th century

    Kummu, Matti; de Moel, Hans; Eisner, Stefanie; Flörke, Martina; Siebert, Stefan; Varis, Olli

    2014-05-01

    Food security and the overall wellbeing of human kind are threatened by overexploitation of our freshwater resources. Water scarcity is not only a threat to people, but also to many of the planet's key ecosystems. Due to increasing population pressure, changing water consumption behaviour, and climate change, the threat is projected to become even worse in the future. Water can be physically scarce in two ways: population-driven water shortage occurs in areas where a large population has to depend on a limited resources (indicated by m3/capita/yr), while demand-driven water stress is related to the excessive use of otherwise sufficient water resources (indicated by demand/supply ratio). Although many studies have increased our understanding of current water scarcity and how this may increase in the future, the understanding of trajectories with the past development of the water scarcity is less well understood. To date, studies of past water resources have focused on either water shortage or water stress. We aim to calculate global water scarcity, both water stress and water shortage, for the period 1900-2005. We can thus provide, for the first time, continuous regional trends and local analyses of trajectories of water scarcity for the entire 20th century. By including both dimensions of water scarcity, we can increase the understanding of reasons behind the scarcity. We found that in year 1900 13% of the population (i.e. 0.22 billion people) was living in areas that suffer some kind of water scarcity (0.2), while in year 2005 this percentage has increased to 57% (3.80 billion). Especially the population suffering from both high water stress (ratio >0.4) and high water shortage (<1000 m3/capita/yr) has risen considerably, from 2% (29 million people) in 1900, up to 19% (1.2 billion people) in 2005. Geographically these concern mainly northern African regions, the Middle East, Pakistan and parts of India and Northern China. The region of sub-Saharan Africa mainly

  5. Anatolij Svidzynskyj's 85th birthday

    Editorial Board

    2014-06-01

    Full Text Available This year a prominent Ukrainian theoretical physicist and public leader Anatolij Svidzynskyj marks his 85th birthday. Anatolij Svidzynskyj was born on 1 March 1929 in Mohyliv-Podilskyy (Ukraine to a family of a physics teacher and an economist. Since 1939 and to the end of WWII Svidzynskyj's family lived in Kiev. In 1945 they moved to Lviv, where A. Svidzynskyj graduated from the Faculty of Physics and Mathematics of the Lviv State University. Vasyl Milyanchuk was his first supervisor. Due to his advice A. Svidzynskyj moved to Moscow State University where Mykola Boholiubov worked at the time. Under Bogoliubov's supervision the PhD thesis ``On the method of functional averaging in the theory of Green's function'' was written, which was defended in 1956 at Lviv State University. One of the most important results obtained in the thesis is an exact solution of Bloch-Nordsieck model that describes an infrared asymptotic of the electron Green's function in a realistic theory - quantum electrodynamics. In this way, a non-analytical dependence of this function on a coupling constant was obtained, and the nature of infrared divergences in quantum electrodynamics was clarified.

  6. 20th ANNIVERSARY OF THE CHILDREN'S HEALTH AND EXERCISE CENTRE, UNIVERSITY OF EXETER, UK

    Craig Sharp

    2007-09-01

    Full Text Available 20th ANNIVERSARY OF THE CHILDREN'S HEALTH AND EXERCISE CENTRE, UNIVERSITY OF EXETER, UK In recent years, partly because of the ever-younger exten-sion of high quality sport representation and partly, para-doxically, due to ever-increasing levels of obesity in the young, the discipline of paediatric physiology has moved from being an interesting curiosity to an extremely impor-tant area of practical knowledge. For example, children thermoregulate qualitatively and quantitatively differently from adults - before puberty their sweat rate per square metre of skin is less than half their adult level - and they may well have, proportionate to mass, 40% greater body surface area than an adult. On the musculo-skeletal side, they come late into 'kinetic-balance', into an appropriately economic mode of running or walking, so such effort is harder for them. In many other areas children, especially younger children, differ importantly from adults, and those involved in any aspects of their exercise, sport or medicine should be well aware of this. Hence the impor-tance of the discipline, and hence the reason for a very hearty celebration of the 20th anniversary of the Chil-dren's Health and Exercise Centre (CHERC, which, as is demonstrated here, has pioneered and expanded the entire discipline, as one of the world's leading paediatric labora-tories.To celebrate the 20th anniversary of the Children's Health and Exercise Centre (1987-2007 past and present mem-bers of the centre were invited to contribute a review article on paediatric exercise science. The collection of reviews, written by current and former PhD students, visiting research fellows and professors, visiting interns and current members of CHERC, discusses an array of topics, which have helped shaped the work of our centre. We would also like to take the opportunity to acknowl-edge all those associated with CHERC over the past 20 years, in particular the many children who have partici-pated in our

  7. A brief history of 20th century dam construction and a look into the future

    van de Giesen, Nick

    2010-05-01

    In this presentation, an overview is given of global dam building activities in the 20th century. Political, economical and hydrological factors shaped the building of large dams. The development of the relations between these three factors and dam building over time is examined. One can argue whether or not history is simply "one damn thing after another" but the second half of the 20th century suggests that history is at least reflected by the construction of one dam after another. The financial crisis of the 1930's started the first construction wave of large hydropower dams in the United States. This wave continued into the Second World War. During the Cold War, the weapon race between the USA and USSR was accompanied by a parallel neck-and-neck race in dam construction. By the 1970's, dam construction in the USA tapered off, while that in the USSR continued until its political disintegration. In China, we see two spurts in dam development, the first one coinciding with the disastrous Great Leap Forward and the second with the liberalization of the Chinese economy after the fall of the Berlin Wall. Economic and political events thus shaped to an important extent decisions surrounding the construction of large dams. Clearly, there are some hydrological prerequisites for the construction of dams. The six largest dam building nations are USSR, Canada, USA, China, Brazil, and India, all large countries with ample water resources and mountain ranges. Australia has relatively little reservoir storage for the simple fact that most of this country is flat and dry. A few countries have relatively large amounts of reservoir storage. Especially Uganda (Owens Falls), Ghana (Akosombo), and Zimbabwe (Kariba) are examples of small countries where gorges in major rivers were "natural" places for large dams and reservoirs to be built early on. It seems that, deserts aside, the average potential storage capacity lies for most continents around 10 cm or about 50% of the total

  8. Symposium Festschrift Hughes (Vernon W) to Celebrate his 70th birthday

    1992-01-01

    The contents of this book are derived from a celebration of the 70th birthday of Vernon W Hughes. Professor Hughes' career has touched on several areas in modern physics ranging from precision measurements of the fundamental properties of atoms to measurements of spin structure functions of the proton via deep inelastic muon scattering at the world's highest energy fixed target machines. This observance of his 70th birthday brings together experimental and theoretical physicists who are leaders of the many fields in which he has made contributions.

  9. Book of extremes why the 21st century isn’t like the 20th century

    Lewis, Ted G

    2014-01-01

    What makes the 21st century different from the 20th century? This century is the century of extremes -- political, economic, social, and global black-swan events happening with increasing frequency and severity. Book of Extremes is a tour of the current reality as seen through the lens of complexity theory – the only theory capable of explaining why the Arab Spring happened and why it will happen again; why social networks in the virtual world behave like flashmobs in the physical world; why financial bubbles blow up in our faces and will grow and burst again; why the rich get richer and will continue to get richer regardless of governmental policies; why the future of economic wealth and national power lies in comparative advantage and global trade; why natural disasters will continue to get bigger and happen more frequently; and why the Internet – invented by the US -- is headed for a global monopoly controlled by a non-US corporation. It is also about the extreme innovations and heroic innovators yet t...

  10. Suicides and accidents on birthdays: Evidence from Japan.

    Matsubayashi, Tetsuya; Ueda, Michiko

    2016-06-01

    This study examined whether people have a higher risk of death on and around their birthday using a large national mortality data. We examined 2,073,656 death records of individuals who died in Japan from major external causes between 1974 and 2014. Poisson regression analysis showed that people were more likely to die on their birthday than on any other calendar day by means of suicide, traffic accidents, accidental falls, drowning, and choking. For suicide cases in particular, people are 50% more likely to die on their birthday compared to any other dates. Excess deaths on birthdays were observed regardless of gender, marital status, and age-at-death subgroups. For suicide deaths, our results provided strong support for the "birthday blues" hypothesis that predicts excess deaths on birthdays. With regards to traffic accidents and other unintentional accidents, however, our results suggest that excess deaths on birthdays may be related to birthday celebrations. For the elderly population, our analysis indicates that special activities associated with birthday celebrations, which often involves going out to consume festive food and drinks, may be contributors to a sudden increase in the number of accidental deaths on their birthday. In contrast, a notably sharp increase in the number of motor vehicle accidents was observed for individuals in the 20s on their birthday, which may be attributable to birthday celebrations that involved both driving and drinking. PMID:27173742

  11. New Testament Studies in the 20th Century

    Hurtado, Larry W

    2009-01-01

    Considered diachronically, NT studies in the twentieth century is a story of vigorous scholarship. Especially after World War II, there is increasing diversification in approach and in the makeup of scholars, with a noticeable shift of centre to English-speaking settings (especially North America), and greater involvement of Roman Catholic, Evangelical, and Jewish scholars, a growing prominence of women, and a proliferation of approaches.

  12. How soon will climate records of the 20th century be broken according to climate model simulations?

    Ruokolainen, Leena; Räisänen, Jouni

    2009-01-01

    What will happen to local record values of temperature and precipitation in a world with ongoing global warming? Here we first examine how many of the observed local temperature maxima of 1901–2006 occurred in the years 2001–2006 and compare the observations with model simulations. Then we study whether, and how soon, the models simulate the climate records of the 20th century to be broken in the ongoing 21st century. In 27% of our analysis area, the highest annual mean temperatures of the wh...

  13. Sericulture in Boka Kotorska Bay (17th-20th

    Crnić-Pejović Marija

    2002-01-01

    Full Text Available In the 19th century Boka Kotorska, sericulture - silk-worm breeding and processing -was highly developed. Based on unpublished arhivalia from the Montenegro National Archives, - Records Department of Herceg Novi - and on published materials from the Historic Archives of Kotor and the Historic Archives of Zadar, along with the related literature, the paper deals with the silk-worm breeding, scope of silk production, operation of spinner mills, planting and cultivation of mulberry trees, whose leaves were used for silk-worm feeding. The Austrian authorities, ranging from the Zadar Regency and the Kotor County Hall, with local councils, through the Silk-Worm Breeding Society and the Bay of Kotor Economy Association, were actively engaged in developing the silk production and enhancing the quality of this economic activity. According to what has been said, it appears that silk-worm breeding was practiced in both rural and urban settlements of the entire Boka Kotorska Bay. The silk-worm breeding entailed the planting of mulberry trees which survived even after the silk-worm breeding had ceased to exist, as mulberry fruit was used to feed pigs and poultry, to make brandy, and because the wood - mulberry lumber - was highly valued in ship building. Mulberry trees were grown in urban settlements as they provided a reliable shade. The silk-worm breeding was discontinued towards and during World War One, whereas the mulberry tree planting persisted until World War Two.

  14. Pigeons, Facebook and the Birthday Problem

    Russell, Matthew

    2013-01-01

    The unexpectedness of the birthday problem has long been used by teachers of statistics in discussing basic probability calculation. An activity is described that engages students in understanding probability and sampling using the popular Facebook social networking site. (Contains 2 figures and 1 table.)

  15. American Telemedicine Association: 20th Annual International Meeting & Tradeshow

    Jordana Bernard

    2015-01-01

    Full Text Available The 2015 American Telemedicine Association (ATA 2015 Annual International Meeting & Tradeshow, will be held May 3-5, 2015 at the Los Angeles Convention Center. ATA 2015 will bring together healthcare professionals, leading telemedicine programs, and industry. This meeting has been the premier forum for professionals in the telemedicine, telehealth and mHealth space for over 20 years.  The world-class, peer reviewed program will include over 500 educational sessions and posters, highlighting the latest innovations, applications and delivery models in telemedicine. The expansive exhibit hall will host hundreds of leading vendors with groundbreaking remote healthcare technologies and services. The educational sessions at ATA 2015 will offer training, information, and updates on issues vital to the practice and industry of telemedicine.Detailed program information--including courses, sessions and Continuing Medical Education (CME information--will be available at: http://www.americantelemed.org/ata-2015/conference-overview

  16. Did we finally slay the evil dragon of cigarette smoking in the late 20th century?: unfortunately, the answer is no - the dragon is still alive and well in the 21st century and living in the third world. Shame on us!

    Hurt, Richard D; Murphy, Joseph G; Dunn, William F

    2014-12-01

    If cigarettes were introduced as a new consumer product today, it is unlikely they would receive government regulatory approval. Cigarettes have proven biologic toxicities (carcinogenesis, atherogenesis, teratogenesis) and well-established causal links to human disease. Things were very different in 1913 when the R. J. Reynolds Tobacco Company introduced the first modern cigarette, the iconic Camel. By the early 1950s, definitive scientific reports linked cigarettes and human disease, but it was more than a half century later (2006) that cigarette manufacturers were found guilty by a federal court of deceptive product marketing regarding the health hazards of tobacco use. In the United States, cigarette smoking remains a major but slowly declining problem. But in developing countries, cigarette use is expanding tremendously. In global terms, the epidemic of smoking-caused disease is projected to increase rapidly in coming decades, not decline. Society may have begun to slowly win the smoking battle in the developed world, but we are resoundingly losing the global war on smoking. All is not lost! There is some good news! The 2003 Framework Convention on Tobacco Control, supported strongly by the American College of Chest Physicians, is the first global public health treaty of the new millennium. Many developed societies have begun planning to rid their countries of cigarettes in what is called the Endgame Strategy, and now is the time for the international medical community to help change tobacco policy to a worldwide endgame approach to rid all humanity of smoking-related diseases. PMID:25451345

  17. Clusters, orders, and trees methods and applications in honor of Boris Mirkin's 70th birthday

    Goldengorin, Boris; Pardalos, Panos

    2014-01-01

    The volume is dedicated to Boris Mirkin on the occasion of his 70th birthday. In addition to his startling PhD results in abstract automata theory, Mirkin’s ground breaking contributions in various fields of decision making and data analysis have marked the fourth quarter of the 20th century and beyond. Mirkin has done pioneering work in group choice, clustering, data mining and knowledge discovery aimed at finding and describing non-trivial or hidden structures—first of all, clusters, orderings, and hierarchies—in multivariate and/or network data. This volume contains a collection of papers reflecting recent developments rooted in Mirkin's fundamental contribution to the state-of-the-art in group choice, ordering, clustering, data mining, and knowledge discovery. Researchers, students, and software engineers will benefit from new knowledge discovery techniques and application directions.

  18. Peace-Making Ideas by M.M. Kovalevsky at the Beginning of 20th Century

    NIKOLAEV N.Yu.

    2014-09-01

    Full Text Available The article reveals the peace-making ideas of famous historian, sociologist and lawyer M.M. Kovalevsky at the beginning of 20th century and analyzes the sociological conception of solidarity which served as the basis for his views on war and peace. He considered social progress as broadening of solidarity sphere which was unavoidably promoted to the consciousness of political integration society. The scientist approximately compared the progress with concentric circles which embodied of uninterruptedly widing human solidarity. The final stage of social and political development should be the creation of national and federal unions, which in their turn would unify in international union. The union built on the principles of democracy and observance of international right standards was destined not only to keep and to ensure the common peace, but also to promote the development of international trade and industry. Kovalevsky played important role in building the peace-making movement in Russia by supporting it with his high scientific and moral authority. In particular, he headed the St. Petersburg’s peace society, established in 1909. Besides, there were a lot of contradictions in his peaceful views. Being the patriot and supporter of the state, the scientist was very far from peace when Russian national interests were taken ino account. This contradiction was clearly revealed during Balkan’s conflict (1912-1913 and the First World War.

  19. The Development of Agriculture and Trade Relations in the Caucasus in the Early 20th Century

    Tatiana E. Gvarliani

    2015-12-01

    Full Text Available The article analyzes the development of agriculture and trade relations in the Caucasus in the early 20th century. This article utilizes the records of Georgian national archives, pre-revolutionary periodicals and monographic literature published in pre-revolutionary, soviet and Russian contemporary periods. The authors used the research methods such as principles of objectivity, historicism, systematic, comprehensive accounting of the economic indicators of agriculture development and trade in the Caucasus and the maximum possible neutrality of the researcher to interpret factual material. The authors come to the conclusion that the development of agriculture in the Caucasus after the revolutionary upheavals of 1905-1907 years in the subsequent period before the First World War entered into the stage of recovery. The reasons of this phenomenon became the discovery of significant quantities of oil, cement, manganese and other fields. The objects of the industry demanded also the additional food supply, this enabled the agriculture in the Caucasus to develop actively.

  20. Trends in coastal upwelling intensity during the late 20th century

    N. Narayan

    2010-02-01

    Full Text Available This study presents linear trends of coastal upwelling intensity in the later part of the 20th century (1960–2001 employing various indices of upwelling, derived from meridional wind stress and sea surface temperature. The analysis was conducted in the four major coastal upwelling regions in the world, which are off North-West Africa, Lüderitz, California and Peru respectively. The trends in meridional wind stress showed a steady increase of intensity from 1960–2001, which was also reflected in the SST index calculated for the same time period. The steady cooling observed in the instrumental records of SST off California substantiated this observation further. Correlation analysis showed that basin-scale oscillations like the Atlantic Multidecadal Oscillation (AMO and the Pacific Decadal Oscillation (PDO could not be directly linked to the observed increase of upwelling intensity off NW Africa and California respectively. The relationship of the North Atlantic Oscillation (NAO with coastal upwelling off NW Africa turned out to be ambiguous due to a negative correlation between the NAO index and the meridional wind stress and a lack of correlation with the SST index. Our results give additional support to the hypothesis that the coastal upwelling intensity increases globally because of raising greenhouse gas concentrations in the atmosphere and an associated increase of the land-sea pressure gradient and meridional wind stress.

  1. Trends in coastal upwelling intensity during the late 20th century

    N. Narayan

    2010-09-01

    Full Text Available This study presents linear trends of coastal upwelling intensity in the later part of the 20th century (1960–2001 employing various indices of upwelling, derived from meridional wind stress and sea surface temperature. The analysis was conducted in the four major coastal upwelling regions in the world, which are off North-West Africa, Lüderitz, California and Peru. The trends in meridional wind stress showed a steady increase of intensity from 1960–2001, which was also reflected in the SST index calculated for the same time period. The steady cooling observed in the instrumental records of SST off California substantiated this observation further. It was also noted that the trends in meridional wind stress obtained from different datasets differ substantially from each other. Correlation analysis showed that basin-scale oscillations like the Atlantic Multidecadal Oscillation (AMO and the Pacific Decadal Oscillation (PDO could not be directly linked to the observed increase of upwelling intensity off NW Africa and California respectively. The relationship of the North Atlantic Oscillation (NAO with coastal upwelling off NW Africa turned out to be ambiguous due to a negative correlation between the NAO index and the meridional wind stress and a lack of correlation with the SST index. Our results give additional support to the hypothesis that the coastal upwelling intensity increases globally because of raising greenhouse gas concentrations in the atmosphere and an associated increase of the land-sea pressure gradient and meridional wind stress.

  2. Brief resume of exploration history in Azerbaijan sector of Caspian sea in 20th century

    Full text : This article contains information about seismic exploration activities in the shallow water part of Azeri sector of Caspian see in the 20th century. During this time 145 perspective structures had been discovered in Azeri sector of Caspian as a result of the exploration. On some of those perspectives that were prepared for geological prospecting deep-hole exploration drilling was carried out and according to the data acquired, there were 27 oil and gas gas fields discovered at that time. The distinctive feature of these deposits is that the production was conducted by means of special dums, piers, built from the shore and also by deviated wells having there wellhead on the land. After World War 2, due to depletion of the main oil producing region, i.e. Apsheron peninsular, Azerbaijan geologists appealed to exploring new oil bearing deposits in other regions of Azerbaijan. Analyses of the geological and geophysical data reveal that along with the high probability of new deposit detection within already discovered structures, positive results may also be acquired by exploration of non-anticlinal traps and pliocene deposits of the western slope of Caspian sea.

  3. 20th CISM-IFToMM Symposium on Theory and Practice of Robots and Manipulators

    Glazunov, Victor

    2014-01-01

    This proceedings volume contains papers that have been selected after review for oral presentation at ROMANSY 2014, the 20th CISM-IFToMM Symposium on Theory and Practice of Robots and Manipulators. These papers cover advances on several aspects of the wide field of Robotics as concerning Theory and Practice of Robots and Manipulators. ROMANSY 2014 is the twentieth event in a series that started in 1973 as one of the first conference activities in the world on Robotics. The first event was held at CISM (International Centre for Mechanical Science) in Udine, Italy on 5-8 September 1973. It was also the first topic conference of IFToMM (International Federation for the Promotion of Mechanism and Machine Science) and it was directed not only to the IFToMM community. Proceedings volumes of ROMANSY have been always published to be available, also after the symposium, to a large public of scholars and designers with the aim to give an overview of new advances and trends in the theory, design, and practice of robots....

  4. Increasing cloud cover in the 20th century: review and new findings in Spain

    A. Sanchez-Lorenzo

    2012-07-01

    Full Text Available Visual observations of clouds have been performed since the establishment of meteorological observatories during the early instrumental period, and have become more systematic and reliable after the mid-19th century due to the establishment of the first national weather services. During the last decades a large number of studies have documented the trends of the total cloud cover (TCC and cloudy types; most of these studies focus on the trends since the second half of the 20th century. Due to the lower reliability of former observations, and the fact that most of this data is not accessible in digital format, there is a lack of studies focusing on the trends of cloudiness since the mid-19th century. In the first part, this work attempts to review previous studies analyzing TCC changes with information covering at least the first half of the 20th century. Then, the study analyses a database of cloudiness observations in Southern Europe (Spain since the second half of the 19th century. Specifically, monthly TCC series were reconstructed since 1866 by means of a so-called parameter of cloudiness, calculated from the number of cloudless and overcast days. These estimated TCC series show a high interannual and decadal correlation with the observed TCC series originally measured in oktas. After assessing the temporal homogeneity of the estimated TCC series, the mean annual and seasonal series for the whole of Spain and several subregions were calculated. The mean annual TCC shows a general tendency to increase from the beginning of the series until the 1960s; at this point, the trend becomes negative. The linear trend for the annual mean series, estimated over the 1866–2010 period, is a highly remarkable (and statistically significant increase of +0.44% per decade, which implies an overall increase of more than +6% during the analyzed period. These results are in line with the majority of the trends observed in many areas of the world in previous

  5. Increasing cloud cover in the 20th century: review and new findings in Spain

    A. Sanchez-Lorenzo

    2012-04-01

    Full Text Available Visual observations of clouds have been performed since the establishment of meteorological observatories during the early instrumental period, and have become more systematic and reliable after the mid-19th century due to the establishment of the first national weather services. During the last decades a large number of studies have documented the trends of the total cloud cover (TCC and cloudy types; most of these studies are focused on the trends since the second half of the 20th century. Due to the lower reliability of former observations, and the fact that most of this data is not accessible in digital format, there is a lack of studies focusing on the trends of cloudiness since the mid-19th century. In the first part, this work attempts to review the previous studies analyzing TCC changes with information covering at least the first half of the 20th century. Then, the study analyses a database of cloudiness observations in Southern Europe (Spain since the second third of the 19th century. Specifically, monthly TCC series were reconstructed since 1866 by means of a so-called parameter of cloudiness, calculated from the number of cloudless and overcast days. This estimated TCC series show a high interannual and decadal correlation with the observed TCC series originally measured in oktas. After assessing the temporal homogeneity of the estimated TCC series, the mean annual and seasonal series for the whole of Spain and several subregions were calculated. The mean annual TCC shows a general tendency to increase from the beginning of the series until the 1960s; at this point, the trend becomes negative. The linear trend for the annual mean series, estimated over the 1866–2010 period, is a highly remarkable (and statistically significant increase of +0.44% per decade, which implies an overall increase of more than +6% during the analyzed period. These results are in line with the major part of the previous trends observed at many areas of the

  6. Increasing cloud cover in the 20th century: review and new findings in Spain

    Sanchez-Lorenzo, A.; Calbó, J.; Wild, M.

    2012-07-01

    Visual observations of clouds have been performed since the establishment of meteorological observatories during the early instrumental period, and have become more systematic and reliable after the mid-19th century due to the establishment of the first national weather services. During the last decades a large number of studies have documented the trends of the total cloud cover (TCC) and cloudy types; most of these studies focus on the trends since the second half of the 20th century. Due to the lower reliability of former observations, and the fact that most of this data is not accessible in digital format, there is a lack of studies focusing on the trends of cloudiness since the mid-19th century. In the first part, this work attempts to review previous studies analyzing TCC changes with information covering at least the first half of the 20th century. Then, the study analyses a database of cloudiness observations in Southern Europe (Spain) since the second half of the 19th century. Specifically, monthly TCC series were reconstructed since 1866 by means of a so-called parameter of cloudiness, calculated from the number of cloudless and overcast days. These estimated TCC series show a high interannual and decadal correlation with the observed TCC series originally measured in oktas. After assessing the temporal homogeneity of the estimated TCC series, the mean annual and seasonal series for the whole of Spain and several subregions were calculated. The mean annual TCC shows a general tendency to increase from the beginning of the series until the 1960s; at this point, the trend becomes negative. The linear trend for the annual mean series, estimated over the 1866-2010 period, is a highly remarkable (and statistically significant) increase of +0.44% per decade, which implies an overall increase of more than +6% during the analyzed period. These results are in line with the majority of the trends observed in many areas of the world in previous studies, especially

  7. Statement on the 20th anniversary of the Vienna International Centre, Vienna, 9 October 1999

    In his Statement on the 20th Anniversary of the Vienna International Centre, the Director General of the IAEA presented the work of the Agency and described how it contributes to two main objectives, namely human development and security

  8. Population Migration in the Territory of Former Yugoslavia in the 20th Century

    Škerlová, Jana

    Praha: Historický ústav, 2015, s. 169-195 ISBN 978-80-7286-260-3 Institutional support: RVO:67985963 Keywords : population migration * forced migration s * resettlement * Yugoslavia * 20th century Subject RIV: AB - History

  9. Writing by 20th-Century Women Reflects Era's Female-Male Conflict, Critics Argue.

    Paul, Angus

    1986-01-01

    Two women's study of writing by women in the 20th century found unexpectedly bitter and persistent anxiety and female-male conflict and a common theme of confinement and suppression of emotions and thoughts. (MSE)

  10. Logo for the 20th Anniversary of the Apollo 11 mission

    1989-01-01

    Logo for the 20th Anniversary of the Apollo 11 mission. Logo is described as the numeral 20. Inside the zero is a representation of an eagle landing on the lunar surface with the title 'Apollo 11' above it.

  11. Towards a 20th Century History of Relationships between Theatre and Neuroscience

    Gabriele Sofia

    2014-01-01

    This article considers some preliminary reflections in view of a 20th century theatre-and-neuroscience history. Up to now, the history of the 20th century theatre has been too fragmentary and irregular, missing out on the subterranean links which, either directly or indirectly, bound different experiences. The article aims to put in evidence the recurrent problems of these encounters. The hypothesis of the essay concerns the possibility of gathering and grouping a great part of the relationsh...

  12. Shanghai-based industrialization in the early 20th century: a quantitative and institutional analysis

    Ma, Debin

    2006-01-01

    A significant but uneven spurt of industrialization started in China during the first three decades of the 20th century at a time of political instability and national disintegration. This article argues that economic growth during this period was closely associated with the rise and expansion of major treaty ports designated under the Western imperialist framework. I focus on the political institutions of a city-state adopted in early 20th century Shanghai – the rule of law, secure property ...

  13. Collective Memory and Collective Identity of Hlučín Region Inhabitants in the 20th Century

    Helena Kubátová

    2016-06-01

    Full Text Available The Hlučín Region is a small border area in the Moravia-Silesia Region. Its history is specific. Over 25 years in the 20th century, its border shifted three times and its inhabitants’ nationality also changed three times. The region was annexed by the German Reich in 1938 and its inhabitants gained the rights of citizens of the Reich, with the obligation to enlist in the Wehrmacht, the armed forces of Germany. These historical turning points and their consequences after the Second World War are part of the cultural and communicative memory of most of the local people. The purpose of the article is to show the communicative memory of Hlučín Region inhabitants and the common knowledge of 20th century historical events to be one of the important integral parts of regional identity, which is a source of regional consciousness. Hlučín Region inhabitants identify themselves strongly with their region and society. This identification results from specific culture finding its expression in shared values, faith and traditions, and from the awareness of their own specificity. As a consequence of the predominant regional endogamy, this culture is handed down from one generation to another. Strong regional consciousness based on this identification, has a positive influence on the rich communal life and possibilities of stabilization and further development of the region.

  14. A multidisciplinary approach of the status of women in Europe in the 20th-21st century

    Irina IONESCU

    2014-06-01

    Full Text Available The 20th century was marked by the feminine revolution and the change of status of women throughout the world. The following article wishes to approach from a multidisciplinary perspective the contrasting differences of the woman’s condition in two different “worlds” (Occidental and the Balkans given the access of women towards education, social attitude and the afferent politics for women. These indexes influence the rate of participation of women in the working field, thus, they play a crucial role in the personal development of them. The comparative analysis of the specialized literature points out the main characteristics of women from France and Germany (as defining parts of the Occidental Europe and Turkey and Bosnia (representative countries for the Balkans and the Islamic part of the continent throughout the 20th and the 21st century. Although there is a common set of features, it is the differences that draw attention regarding the unequal participation of women in the social, economical and political life.

  15. How soon will climate records of the 20th century be broken according to climate model simulations?

    Ruokolainen, Leena; Räisänen, Jouni

    2009-08-01

    What will happen to local record values of temperature and precipitation in a world with ongoing global warming? Here we first examine how many of the observed local temperature maxima of 1901-2006 occurred in the years 2001-2006 and compare the observations with model simulations. Then we study whether, and how soon, the models simulate the climate records of the 20th century to be broken in the ongoing 21st century. In 27% of our analysis area, the highest annual mean temperatures of the whole period 1901-2006 were observed in 2001-2006. For the 22 climate models in our study, this fraction varies from 17% to 70%, with a multimodel mean of 40%. In simulations based on the SRES A1B emissions scenario, the highest annual mean temperature of the 20th century is exceeded on average in 99% of the global area by the year 2080. The same number for the highest (lowest) annual precipitation total is 60% (43%). Monthly and seasonal temperature and precipitation records are also analysed, and the geographical distributions of record value occurrence are related to the distributions of time mean climate change and magnitude of interannual variability.

  16. Canada's Dominion Astrophysical Observatory and the rise of 20th Century Astrophysics and Technology

    Hesser, James E.; Bohlender, David; Crabtree, Dennis

    2015-08-01

    Construction of Canada’s Dominion Astrophysical Observatory (DAO) commenced in 1914 with first light on 6 May 1918. Its varied, rich contributions to the astronomical heritage of the 20th century continue into the 21st century. The first major research observatory built with public funding on the West Coast of North America, it was Canada’s first ‘big science’ project. DAO welcomed scientists from around the world to use its 1.8m telescope designed by John Stanley Plaskett working in close collaboration with the Warner and Swasey Company of Cleveland, OH. Their original design was copied seven times around the globe, the last occasion being in the 1960s. From Day 1 the DAO welcomed the public for viewing and interaction with the small scientific staff whose early efforts would today be characterized as ‘Key Projects’. Those efforts included measuring the radial velocities of O and B stars that, interpreted through Oort’s ideas of differential rotation, determined the most reliable estimate of the size and mass of the Milky Way available until radio astronomical techniques emerged in the 1950s. The first organic molecule in interstellar space, CH, was discovered by a DAO astronomer. The first, very puzzling estimate of ~3K for the temperature of interstellar space was deduced from interstellar CN observations a year after interstellar CH and CN were discovered. DAO’s heritage of innovative instrumentation continues to the present day where expertise in optically efficient, mechanically stable spectrographs and adaptive optics are much in evidence at Mauna Kea’s CFHT, Gemini and Subaru observatories. In 2009 the DAO was designated a National Historic Site. This presentation will draw links between DAO, developments of Canadian astronomy and the emergence of Mauna Kea as an exceptional global astronomical reserve.

  17. Birthday and the Year of Birth in Tibet

    QOIGYIZHOLMA

    2004-01-01

    Iknew nothing about birthday celebration in my childhood, nor even of the concept of “birthday” itself.Though I did hear that some aged people would hold a celebration for their 80th birthday, I was completely ignorant about the meaning behind this. Holding birthday celebrations seemed to be more common for me after I embarked on my career, as people around me always did celebrate for themselves and especially for their children. When my kids made a request, I celebrated their birthday the way other people did.

  18. Cohort childbearing age patterns in low-fertility countries in the late 20th century: Is the postponement of births an inherent element?

    Tomas Frejka; Gérad Calot

    2001-01-01

    Major changes in the age patterns of fertility were characteristic of fertility trends following the Second World War. The paper provides an overview and analysis of changes in age patterns of cohort childbearing in low-fertility countries during the second half of the 20 th century. In Western countries cohorts born around 1940 had earlier childbearing than those of 1930. Early childbearing persisted among cohorts born during the 1940s, although generally at a lower level. Major shifts occur...

  19. Proceedings of V International Seminar and V National Workshop 'Use and development of products isotopic health industry'. 20th anniversary CENTIS

    At the Salon Copa Room. Hotel Habana Riviera Took place the V International Seminar and V National Workshop 'Use and development of products isotopic health industry' for the 20th anniversary CENTIS. The event was organized by the Isotope Center. Some 200 domestic and foreign experts debated topics related to the development and production of radiopharmaceuticals in Cuba and the world, its therapeutic applications in certain tumors, and quality management systems in nuclear medicine. (author)

  20. 20th Frederic Joliot/Otto Hahn Summer School on nuclear reactors 'physics, fuels and systems'

    This year, the 20th anniversary of the Frederic Joliot/Otto Hahn Summer School was celebrated in Aix-en-Provence, France from August 20th to 29th 2014. The topic was 'Nuclear reactors - bridging the gap between science and industry'. This summer school is organized by the Karlsruhe Institute of Technology (KIT) and the Commissariat a l'Energie Atomique (CEA) since twenty years. Experts from internationally recognized organizations (Universities, research centres, regulators, industry) from USA, Japan, Asia and Europe presented during the 10 days of sessions the newest trends and challenges on the related fields.

  1. Towards a 20th Century History of Relationships between Theatre and Neuroscience

    Gabriele Sofia

    2014-05-01

    Full Text Available This article considers some preliminary reflections in view of a 20th century theatre-and-neuroscience history. Up to now, the history of the 20th century theatre has been too fragmentary and irregular, missing out on the subterranean links which, either directly or indirectly, bound different experiences. The article aims to put in evidence the recurrent problems of these encounters. The hypothesis of the essay concerns the possibility of gathering and grouping a great part of the relationships between theatre and neuroscience around four trajectories: the physiology of action, the physiology of emotions, ethology, and studies on the spectator’s perception.

  2. Ministers on the Lecture Circuit: Education, Entertainment and Religion in Early 20th Century America

    Lisa Gonzalez

    2013-12-01

    Full Text Available In the early 20th century, some American ministers were eager participants in the Chautauqua and Lyceum lecture circuits that flourished across the Midwest and beyond. Ministers expressed their vocation in the public arena, and the Redpath Chautauqua collection shows how part of this public life was conducted. In their role as lecturers in multiple educational and civic venues, ministers functioned as experts on the Bible, as well as supporting American ideals that were loosely connected to Protestant Christianity. The essay explores how a substantial archival collection reveals a particular public role ministers played in a popular culture venue in early 20th century America.

  3. KEY ASPECTS OF SYSTEMIC LINGUISTICS IN GREAT BRITAIN AT THE END OF THE 20TH CENTURY

    Gavrilova, Yulia

    2015-01-01

    The article deals with some peculiarities of the development of British linguistics at the end of the 20th century. We show its links with earlier developments in the science, providing a general comparison of British and American linguistic traditions. Since the key theory of linguistics in Great Britain in the 20th century was the London School, all the subsequent concepts were, to an extent, based on it. Systemic-functional linguistics looks at the use of language in the context of speech,...

  4. A Hierarchy of 21st Birthday Drinking Norms

    Patrick, Megan E.; Neighbors, Clayton; Lee, Christine M.

    2012-01-01

    The present paper offers preliminary evidence for a hierarchical organization of normative social influences on 21st birthday drinking. In recent years, 21st birthday celebratory drinking has received increasing attention, due largely to the propagation of dangerous and sometimes fatal drinking traditions, such as attempting to drink one shot for…

  5. Climate Change: Sources of Warming in the Late 20th Century

    Marsh, Gerald E

    2009-01-01

    The role of the North Atlantic Oscillation, the Pacific Decadal Oscillation, volcanic and other aerosols, as well as the extraordinary solar activity of the late 20th century are discussed in the context of the warming since the mid-1970s. Much of that warming is found to be due to natural causes.

  6. Ottoman Greek Education System and Greek Girls' Schools in Istanbul (19th and 20th Centuries)

    Daglar Macar, Oya

    2010-01-01

    Modernization efforts in education, which were initiated in the 19th century, can be seen as forerunners of the modernization attempts in the Republic period. In this article, Greek education system in the Ottoman Empire will be discussed and the effects and importance of the changes observed in Greek girls' education in 19th and 20th centuries on…

  7. The 20th century retreat of ice caps in Iceland derived from airborne SAR

    Magnússon, Eyjólfur; Björnsson, Helgi; Dall, Jørgen; Pálsson, Finnur

    the surges in W-Vatnajokull in the 20th century are observed in the SAR data including the most recent surges in the 1990s. Interestingly no push moraines were observed in front of the surge advance, but the moraines appear when the glaciers start retreating. We estimate that the collective decrease...

  8. Serbian schools and teaching of Serbian language in Greece in the 20th century

    Blagojević Gordana

    2007-01-01

    Full Text Available The topic of this work is Serbian schools and the teaching of Serbian language in Greece in the 20th century. During the first half of the 20th century the existence of Serbian people in Turkey (later in Greece was acknowledged through school and church. Thanks to the Serbian schools, Serbs as an invisible minority became a visible one. In the second half of the 20th century there is primarily a teaching of Serbian language as a foreign language. During this period, Serbian was accepted primarily by Greeks at courses and private classes. At the beginning of the nineties in the 20th century because of the war in the territory of Yugoslavia, a large number of refugees went to Greece. Teaching of Serbian as a native language was organized only ten years later (at the beginning of 21st century. In some places, the schools are located in consular sections and have the assistance of the country of origin (Thessalonica, Katerini while in Hani (Crete immigrants organized them-selves without the assistance from the country of origin. By studying Serbian schools and the teaching of Serbian language, this work considers relation towards language as a symbol of ethnic identity - at the individual level, at the level of receiving country and at the level of country of origin.

  9. Dancetime! 500 Years of Social Dance. Volume II: 20th Century. [Videotape].

    Teten, Carol

    This 50-minute VHS videotape is the second in a 2-volume series that presents 500 years of social dance, music, and fashion. It features dance and music of the 20th century, including; 1910s: animal dances, castle walk, apache, and tango; 1920s: black bottom and charleston; 1930s: marathon, movie musicals, big apple, and jitterbug; 1940s: rumba;…

  10. Sexism in Advertising Industry Through the Study of Auto Magazine Advertisements in Late 20th Century

    冯冉

    2015-01-01

    Gender discrimination against female in advertising industry appears to be ubiquitous especially in late 20th century. I intend to demonstrate that auto ads are under the influence of common gender stereotype which discriminates women as an inferior role in the society.

  11. Retrospective on Educational Testing and Assessment in the 20th Century.

    Clarke, Marguerite M.; Madaus, George F.; Horn, Catherine L.; Ramos, Miguel A.

    2000-01-01

    Explores the growth of the U.S. testing industry since the 1900s. Discusses the technical developments that have encouraged the use of standardized testing and contributed to the growth of the testing industry. Attempts to quantify the expansion of the testing marketplace through the 20th century. Includes references. (CMK)

  12. A balance between radiative forcing and climate feedback in the modeled 20th century temperature response

    Crook, Julia A.; Forster, Piers M.

    2011-09-01

    In this paper, we breakdown the temperature response of coupled ocean-atmosphere climate models into components due to radiative forcing, climate feedback, and heat storage and transport to understand how well climate models reproduce the observed 20th century temperature record. Despite large differences between models' feedback strength, they generally reproduce the temperature response well but for different reasons in each model. We show that the differences in forcing and heat storage and transport give rise to a considerable part of the intermodel variability in global, Arctic, and tropical mean temperature responses over the 20th century. Projected future warming trends are much more dependent on a model's feedback strength, suggesting that constraining future climate change by weighting these models on the basis of their 20th century reproductive skill is not possible. We find that tropical 20th century warming is too large and Arctic amplification is unrealistically low in the Geophysical Fluid Dynamics Laboratory CM2.1, Meteorological Research Institute CGCM232a, and MIROC3.2(hires) models because of unrealistic forcing distributions. The Arctic amplification in both National Center for Atmospheric Research models is unrealistically high because of high feedback contributions in the Arctic compared to the tropics. Few models reproduce the strong observed warming trend from 1918 to 1940. The simulated trend is too low, particularly in the tropics, even allowing for internal variability, suggesting there is too little positive forcing or too much negative forcing in the models at this time. Over the whole of the 20th century, the feedback strength is likely to be underestimated by the multimodel mean.

  13. Temperature variability in Serbia in the second half of the 20th century

    Radovanović Milan M.

    2004-01-01

    Full Text Available According to data of IPCC (Intergovernmental Panel for Climatic Change, the global surface air temperature increased to 0,6 ± 0,2 °C in the 20th century. Weber G. R., (1995 quotes that there is a trend of cold in the last 60 years in the middle latitudes including Europe, too. Starting from already mentioned perplexities we have tried to perceive the problem of climate variability in Serbia in the second half of the 20th century, when it came to very important increasing of concentration of CO2. With that aim we observed the decade values of average annual temperatures in the network of 20 climatic stations. In the period 1951 - 1990 a decrease of temperature was registered in 13 stations while in other stations an increase was less than 0,1 °C. Explorers from Bulgaria (Alexandrov V., 2000 and Hungary (Domonkos P., Zoboki J., 2000 came to similar results, too. However, if we take in account the last decade 20th century the number of stations with positive changes is enlarged on 15. Stations that have small changes and those with decrease of temperature were localized in the south and south eastern part of the country, and they are mainly coincided with before separated climatic regions with maritime pluviometric regime (Radovanović M., 2001. Using Dzerdzevskis B. L., (1975 division on three main types of circulation in the north hemisphere, we found that the increase of temperatures in the last decade 20th century is above all caused by change of dominant type of circulation from the south meridian to zonal. An analysis of seasonal changes showed that in the last five decades 20th century it came to decrease of winter temperatures in almost half of the stations in contrast with results of paleoclimatics models of possible greenhouse effect.

  14. PLOT REELED INTO AN EKPHRASIS IN BELLES LETTRES OF THE BEGINNING OF THE 20TH CENTURY

    Elena Vasil’evna Astaschenko

    2015-11-01

    Full Text Available Plots reeled into the ekphrasis have always existed. In belles lettres of the beginning of the 20th century, the fight between the pagan and the Christian manifests in the opposition of scenic space and it creates a powerful «magnetic» field. This is a special type of mythologism in which the Christian imagery is on the positive side of the binary opposition with its respective system of ethical coordinates. In «polytheistic systems, the presentations of evil is static as of the essential and eternal beginning of the world», but in the orthodox Christianity, the devil is a ghost, lure, disembodied temptation and «with every day it approaches nonexistence» (from the «Moralia» of the 6th century by Gregory the Great. However, Gregory the Great also notes that the power of Satan is from God as all other powers, he just distorted his power with his God-given free will. Even at the level of worldly wisdom aphorisms there is a conventional belief that our shortcomings are the continuation of our merits, and therefore it is necessary to adhere to the golden mean. Accroding to A. Gracheva in the book «Dialogues of Janus: Belles lettres and classics in the Russian literature of the early twentieth century», at the beginning of the 19th century, the mythologism of the spontaneous and not experimental type (often encyclopaedic and «algebraic» like in the works of Joyce and Bely, is especially pronounced in the works of writers, who are close to mass literature with their democracy or «boudoir» and especially in the works of female writers. This is due both to existing archetypes of the collective unconscious (some of which are even atavistic and «migratory plots» which are characteristic of both folklore and popular culture. Despite the compelling erotic subject matter, belles lettres is not always frivolous and, on the contrary, it is edifying and full of moral questions, which are sometimes rhetorical: «What is a sin and what does the

  15. Observed and model simulated 20th century Arctic temperature variability: Canadian Earth System Model CanESM2

    Chylek, P.; Li, J.; Dubey, M. K.; Wang, M.; Lesins, G.

    2011-01-01

    We present simulations of the 20th century Arctic temperature anomaly from the second generation Canadian Earth System Model (CanESM2). The new model couples together an atmosphere-ocean general circulation model, a land-vegetation model and terrestrial and oceanic interactive carbon cycle. It simulates well the observed 20th century Arctic temperature variability that includes the early and late 20th century warming periods and the intervening 1940–1970 period of substantial cooling. The add...

  16. Observed and model simulated 20th century Arctic temperature variability: Canadian Earth System Model CanESM2

    Chylek, P.; Li, J.; Dubey, M. K.; Wang, M.; Lesins, G.

    2011-01-01

    We present simulations of the 20th century Arctic temperature anomaly from the second generation Canadian Earth System Model (CanESM2). The new model couples together an atmosphere-ocean general circulation model, a land-vegetation model and terrestrial and oceanic interactive carbon cycle. It simulates well the observed 20th century Arctic temperature variability that includes the early and late 20th century warming periods and the intervening 1940–1970 period of substantia...

  17. [On some demographic characteristics of the members of the Russian Academy of Sciences in the 20th century].

    Berezkin, V G; Bulianitsa, A L

    2007-01-01

    The demographic life characteristics of the Russian science elite (full and corresponding members of the Academy of Sciences in 20th century) and the relationship between their birth and death dates are given in the paper. The following demographic characteristics of the RAS members have been estimated: a) the mean life span of full RAS members is 75 years, and of corresponding members--72.1 years; b) the mean life span of full RAS members after their election is 16.6 years, and that of corresponding members is 17 years; c) the mean age of the election to the Academy is 58.4 years for full members and 55 years for the corresponding members. These characteristics were used to analyze the social status of the group representing potential academic elite and to evaluate changes in that status caused by the fact of their election to the Academy. It has been found that the mean, maximum and minimum ages of their election to the Academy actually coincide with respective characteristics of Nobel Prize winners. However the life span of the latter after awarding is significantly, over 3 years, greater than that of full RAS members after their election. There is a small proportion of women among the members of the Academy (2%). This is also true for Nobel Prize winners (3.2%). It is shown that a week period of +/-3 days of the birth date for the members of the Academy is characterized by a much higher mortality rate exceeding the average one by about 60%. A similar tendency was shown earlier for the eminent persons of the world community in literature, science, business, and politics in 18th-20th centuries. PMID:17969583

  18. The process of Danish nurses’ professionalization and patterns of thought in the 20th century

    Beedholm, Kirsten; Frederiksen, Kirsten

    2015-01-01

    In this article, we address how the professionalization process is reflected in the way Danish nursing textbooks present 'nursing' to new members of the profession during the 20th century. The discussion is based on a discourse analysis of seven Danish textbooks on basic nursing published between...... 1904 and 1996. The analysis was inspired by the work of Michel Foucault, in particular the concepts of rupture and rules of formation. First, we explain how the dominating role of the human body in nursing textbooks disappears in the mid-20th century. This transformation can of course be attributed to...... changes in tasks and responsibilities for nurses or to the implementation of increasing amounts of knowledge and theories from other disciplines than medicine into the nurses' knowledge base. However, inspired by Foucault, we consider these historical changes to be the conditions of possibilities and not...

  19. Peace-Making Ideas by M.M. Kovalevsky at the Beginning of 20th Century

    NIKOLAEV N.Yu.

    2014-01-01

    The article reveals the peace-making ideas of famous historian, sociologist and lawyer M.M. Kovalevsky at the beginning of 20th century and analyzes the sociological conception of solidarity which served as the basis for his views on war and peace. He considered social progress as broadening of solidarity sphere which was unavoidably promoted to the consciousness of political integration society. The scientist approximately compared the progress with concentric circles which embodied of unint...

  20. Event displays from Beam Halo in ATLAS, November 20th, 2009

    ATLAS collaboration

    2009-01-01

    ATLAS event displays and related information from the LHC restart in 2009. We recorded today, Friday November 20th, the first so-called "Beam Splash" events. For these events the beam in one arm of the LHC was dumped onto closed collimators located 140 meters upstream and downstream of ATLAS. The collision leads to a large number of detectable secondary particles longitudinally traversing the detect

  1. Event displays from Beam 01 in ATLAS, November 20th, 2009

    atlas collaboration

    2009-01-01

    ATLAS event displays and related information from the LHC restart in 2009. We recorded on, Friday November 20th, the first so-called "Beam Splash" events. For these events the beam in one arm of the LHC was dumped onto closed collimators located 140 meters upstream and downstream of ATLAS. The collision leads to a large number of detectable secondary particles longitudinally traversing the detector

  2. Event displays from Beam 2 in ATLAS, November 20th, 2009

    ATLAS collaboration

    2009-01-01

    ATLAS event displays and related information from the LHC restart in 2009. We recorded today, Friday November 20th, the first so-called "Beam Splash" events. For these events the beam in one arm of the LHC was dumped onto closed collimators located 140 meters upstream and downstream of ATLAS. The collision leads to a large number of detectable secondary particles longitudinally traversing the detect

  3. Protection through Proof of Age. Birth Registration and Child Labor in Early 20th Century USA.

    Sonja Fagernäs

    2011-01-01

    A birth certificate establishes a child's legal identity and is the sole official proof of a child's age. However, quantitative estimates on the economic significance of birth registration are lacking. Birth registration laws were enacted by the majority of U.S. states in late 19th and early 20th centuries. Controlling for state of birth and cohort effects, the differential timing of birth registration laws across US states is used to identify whether birth registration changed the effectiven...

  4. Brief Communication: Global reconstructions of glacier mass change during the 20th century are consistent

    B. Marzeion; Leclercq, P.W.; Cogley, J. G.; A. H. Jarosch

    2015-01-01

    Recent estimates of the contribution of glaciers to sea-level rise during the 20th century are strongly divergent. Advances in data availability have allowed revisions of some of these published estimates. Here we show that outside of Antarctica, the global estimates of glacier mass change obtained from glacier-length-based reconstructions and from a glacier model driven by gridded climate observations are now consistent with each other, and also with an estimate for the yea...

  5. Durability problems of 20th century reinforced concrete heritage structures and their restorations

    Teshome Gebregziabhier, Tekeste

    2009-01-01

    This paper presents a study on the 20th century reinforced concrete heritage structures, thier durability problems, thier repair and restorations according to the conservation principles of heritage structures and the repair principles of reinforced concrete structures.The common problems on reinforced concrete heritage structures such as reinforcement corrosion, alkali aggregate reaction, freeze thaw and overloading of the structure are identified and thier respective repair m...

  6. The Philosophy of education in Catalonia in the 20th century : dialectics, synthetics and vitalists

    Xavier LAUDO CASTILLO; Conrad VILANOU TORRANO

    2013-01-01

    This text is a contribution to the history of philosophy of contemporary education, which presents three major currents in educational philosophy in Catalonia in the 20th century. In the beginning it deals with the line of thinkers represented by Eugenid’Ors and OctaviFullat, who understood education as a dialectic between two poles or opposites in constant conflict.Then it will analyze the synthetic view following Jaume Balmes and the constantly modernizing pedagogy from Cardenal Mercier in ...

  7. Field Trials of the Prototype Pounder Rig, Uganda, 20th August - 13th November 1999.

    Ball, Peter; Danert, Kerstin

    1999-01-01

    A prototype low-cost drilling rig was imported to Uganda in August 1999 and handed over to Mpigi District Government. Field trials of this machine were undertaken between 20 th August and 13 th November 1999. This work was enabled through a tripartite Memorandum of Understanding between the Cranfield University/DFID Low Cost well Drilling Project, the Directorate of Water Development (DWD) of the Government of Uganda, and the local Government of Mpigi District. A total of fo...

  8. Energetic Particles in Magnetic Confinement Systems. 11. IAEA TM - 20th Anniversary Meeting. Agenda and Abstracts

    Abstracts of the talks presented to the 'Energetic Particles in Magnetic Confinement Systems. 11 IAEA TM - 20th Anniversary Meeting' (Sept. 21-23, 2009) deal with the up-to-date problems: Alpha particles physics, Transport of energetic particles, Effects of energetic particles in magnetic confinement fusion devices, Collective phenomena: Alfven Eigenmodes, energetic particle modes and others, Runaway electrons and disruptions, Diagnostics for energetic particles

  9. A Science of Interests: The Project of 20th Century Positivist International Law

    Garcia-Salmones Rovira, Monica

    2012-01-01

    A Science of Interests: The Project of 20th Century Positivist International Law This research aims to contribute to a project of reconceptualisation of the concept of law within which discussions over publicness are possible. It is a study of the substance and of the form of positive international law. In particular, it constitutes an investigation of how each determines the other. The research addresses geologically the change in the substance and form of international law in the 20t...

  10. [Anti-positivist inspiration in European medical historiography in the 20th century].

    Płonka-Syroka, Bozena

    2002-01-01

    The article presents the most important anti-positivist (the neo-romantic, socio-cultural and relativistic) currents in 20th century European medical historiography. The author discusses the genesis of the anti-positivist opposition in the medical historiography, starting with a presentation of the main points of the positivist programme, and shows the reasons behind the earlier broad reception of this programme by medical historians from the medical profession. The author attributes the emergence of an anti-positivist opposition in this milieu mainly to the medical progress which occurred in the first half of the 20th century and which induced some doctors, engaged in research into medical history, to reject the positivist model of teaching and replace it wit another. This factor played a leading role in the formation of the socio-cultural and relativist currents. According to the author, the second important factor in the birth of this opposition is the 20th century progress in the methodology of historical research, which freed itself from the constraints of positivist scientism as the only acceptable method of interpreting facts. The author also discusses the socio-cultural and political conditions which led to the formation and spread of the neo-romantic movement solely in Germany. The article presents the programme principles and the most important representatives of anti-positivist currents in European (mainly German) and the circumstances behind the reception of each current by the community of medical historians, and presents the development prospects of Polish medical historiography on the treshold of the 20th and 21st centuries, in connection with the research into this field of science undertaken by a large and continuously growing number of university-educated researchers. PMID:12934578

  11. 20th ANNIVERSARY OF THE CHILDREN'S HEALTH AND EXERCISE CENTRE, UNIVERSITY OF EXETER, UK

    Craig Sharp; Craig A. Williams

    2007-01-01

    20th ANNIVERSARY OF THE CHILDREN'S HEALTH AND EXERCISE CENTRE, UNIVERSITY OF EXETER, UK In recent years, partly because of the ever-younger exten-sion of high quality sport representation and partly, para-doxically, due to ever-increasing levels of obesity in the young, the discipline of paediatric physiology has moved from being an interesting curiosity to an extremely impor-tant area of practical knowledge. For example, children thermoregulate qualitatively and quantitatively differently fr...

  12. Swedish National Resource Centre for Physics Education celebrates its 20th anniversary

    Pendrill, Ann-Marie

    2014-01-01

    The Swedish National Resource Centre for Physics Education (fysik.org) was created at Lund University by the Swedish Government in 1994. Its 20th anniversary was celebrated 31 March to 1 April at the Island of Hven, which became an EPS historic site in 2013. The theme for the anniversary conference was 'From science education research to education—on research-based development projects.

  13. BNAIC 2008: Proceedings 20th Belgian-Netherlands Conference on Artificial Intelligence

    Nijholt, Anton; Pantic, Maja; Poel, Mannes; Hondorp, Hendri

    2008-01-01

    This book contains the proceedings of the 20th edition of the Belgian-Netherlands Conference on Artificial Intelligence. The conference was organized by the Human Media Interaction group of the University of Twente. As usual, the conference was under the auspices of the Belgian-Dutch Association for Artificial Intelligence (BNVKI) and the Dutch Research School for Information and Knowledge Systems (SIKS). The conference aims at presenting an overview of state-of-the-art research in artificial...

  14. An Emotive Mechanism: Phonographic Wonders and Possibilities at the Turn of the 20th Century

    Garza, Gustavo

    2012-01-01

    This dissertation examines the intellectual and cultural reception of the phonograph at the turn of the 20th century in Western Europe and the United States. My main goal in this project is to investigate the varied reception of the phonograph by different constituencies, such as scientists, cultural critics, ethnomusicologists, and musicians. From apprehension to enthusiasm, the phonograph generated a diverse set of reactions amongst its users and listeners. In order to better understand ...

  15. Modeling the temperature evolution of Svalbard permafrost during the 20th and 21st century

    B. Etzelmüller; T. V. Schuler; K. Isaksen; H. H. Christiansen; H. Farbrot; R. Benestad

    2011-01-01

    Variations in ground thermal conditions in Svalbard were studied based on measurements and modelling. Ground temperature data from boreholes were used to calibrate a transient heat flow model describing depth and time variations in temperatures. The model was subsequently forced with historical surface air temperature records and possible future temperatures downscaled from multiple global climate models. We discuss ground temperature development since the early 20th century, and the thermal ...

  16. From posters to displaying: poster communication in Osijek in the early 20th century

    Zoran Velagić; Merien Gracek

    2008-01-01

    There are many monographs, articles, chapters and exhibitions and their catalogues dedicated to Croatian posters from the early 20th century. Posters are evaluated as works of art, but received very little attention as an advertising medium. Their communication and advertising role in the specified time and place has not been investigated thoroughly. This paper does not investigate the relationship between the artistic and marketoriented aspects of posters, neither does it evaluate which and ...

  17. Inconsistencies and Fallacies: IPCC 20th Century Simulations, Multi-Model Ensembles and Climate Sensitivity

    Rogers, N. L.

    2009-12-01

    The IPCC used an experiment that had approximately 20 different climate models fit the temperature history of the 20th century. A remarkably good and convincing fit was obtained by combining selected models into a multi-model ensemble. This may be seen in figure 9.5 of the AR4 Scientific Basis report. The fallacy is that each modeling group used different forcings, effectively simulating a different imaginary planet. Since the IPCC models differ by more than 2-1 in climate sensitivity it would be quite amazing if they could all agree on temperature in the late 20th century when CO2 was rapidly increasing. Allowing each model to be excited by different forcings effectively makes the model be a rather complicated curve fitting program. If one accepts that the models are being used to do curve fitting then the supposedly better results obtained by averaging multiple models is easily explainable as the reduction of error that results from averaging approximations to a function with uncorrelated errors. Finally the late 20th century temperature rise is too small for a 3 degree climate sensitivity for doubling of CO2 and the explanations for the warming shortfall that rely on aerosol cooling or ocean warming are easily refuted.There may be alternative explanations for the shortfall or it may be that climate sensitivity is much lower than projected by the IPCC.

  18. The process of Danish nurses' professionalization and patterns of thought in the 20th century.

    Beedholm, Kirsten; Frederiksen, Kirsten

    2015-06-01

    In this article, we address how the professionalization process is reflected in the way Danish nursing textbooks present 'nursing' to new members of the profession during the 20th century. The discussion is based on a discourse analysis of seven Danish textbooks on basic nursing published between 1904 and 1996. The analysis was inspired by the work of Michel Foucault, in particular the concepts of rupture and rules of formation. First, we explain how the dominating role of the human body in nursing textbooks disappears in the mid-20th century. This transformation can of course be attributed to changes in tasks and responsibilities for nurses or to the implementation of increasing amounts of knowledge and theories from other disciplines than medicine into the nurses' knowledge base. However, inspired by Foucault, we consider these historical changes to be the conditions of possibilities and not causes. The second part of the analysis shows that along with 'the disappearance of the body', a second discursive change appears: the role of doctors and medicine changes fundamentally from about mid-20th century. Finally, we argue that this discursive reorganization enabling new patterns of thought to emerge was driven by a professional interest in describing nursing as an independent profession. PMID:25238323

  19. Sea Level did not Accelerate in the Last Quarter of the 20th Century

    Galvin, C.

    2004-12-01

    The Permanent Service for Mean Sea Level (PSMSL)collects quality-controlled sea levels from tide gages on all seas, and tabulates them at www.pol.ac.uk/psmsl/psmsl(underline)individual(underline)stations.html. I examined annual average sea levels (Ra in column 6) for generally open-coast tide gages having data at the years defining quarter points in the 20th century: 1900, 1925, 1950, 1975, 2000. Gages lacking data for a given date, say 1975, were assumed to qualify if they had data for one year, plus or minus, of the missing data, i. e., for 1974 or 1976 in this example. This examination of data from gages on all seas identified 54 gages with data for the last three of the five dates, which included 26 gages with data for the last four of the five dates, which included 7 gages with data for all five dates. This means that sea-level change during the last quarter (Q4) of the 20th century could be compared at 54 sites with sea-level change in Q3, at 26 sites with sea- level change in Q2, and at 7 sites with sea-level change in Q1, providing 87 tests of the widely reported acceleration in rate of sea-level rise at the end of the 20th century. If sea level is rising at an accelerating rate, then sea-level rise during Q4 should almost always exceed sea-level rises in Q1, Q2, and Q3 of the 20th century. Of the 87 tests, 44 showed more sea-level rise in Q4, and 43 showed less sea-level rise in Q4, compared to the earlier quarters. Thus there is no evidence for an accelerating rise in sea level at the end of the 20th century from these quality-controlled data. The data do indicate that sea-level changes are synchronized over long reaches of shoreline (Sturges, 1990), and sites where gages are imbedded in deposits of clastic sediment have higher apparent sea-level rise attributable to sediment compaction. Beach erosion on the East Coast of the U.S. is widely attributed to the acceleration of sea-level rise, yet all 8 long-term gages at this coast show significantly LESS

  20. CONGRATULATIONS TO ACADEMICIAN LIN QUN ON HIS 70th BIRTHDAY

    Institute of Computational Mathematics; Scientific/Engineering Computing

    2006-01-01

    @@ This special issue of the Journal of Computational Mathematics is dedicated to Professor Qun Lin, an outstanding mathematician and a Member of Chinese Academy of Sciences (CAS), on the occasion of his seventieth birthday.

  1. The distribution of an illustrated timeline wall chart and teacher's guide of 20th century physics

    Schwartz, Brian

    2000-12-26

    The American Physical Society's part of its centennial celebration in March of 1999 decided to develop a timeline wall chart on the history of 20th century physics. This resulted in eleven consecutive posters, which when mounted side by side, create a 23-foot mural. The timeline exhibits and describes the millstones of physics in images and words. The timeline functions as a chronology, a work of art, a permanent open textbook, and a gigantic photo album covering a hundred years in the life of the community of physicists and the existence of the American Physical Society. Each of the eleven posters begins with a brief essay that places a major scientific achievement of the decade in its historical context. Large portraits of the essays' subjects include youthful photographs of Marie Curie, Albert Einstein, and Richard Feynman among others, to help put a face on science. Below the essays, a total of over 130 individual discoveries and inventions, explained in dated text boxes with accompanying images, form the backbone of the timeline. For ease of comprehension, this wealth of material is organized into five color-coded story lines the stretch horizontally across the hundred years of the 20th century. The five story lines are: Cosmic Scale, relate the story of astrophysics and cosmology; Human Scale, refers to the physics of the more familiar distances from the global to the microscopic; Atomic Scale, focuses on the submicroscopic world of atoms, nuclei and quarks; Living World, chronicles the interaction of physics with biology and medicine; Technology, traces the applications of physic to everyday living. Woven into the bottom border of the timeline are period images of significant works of art, architecture, and technological artifacts such as telephones, automobiles, aircraft, computers, and appliances. The last poster, covering the years since 1995, differs from the others. Its essay concerns the prospect for physics into the next century, and is

  2. What Constitutes  Good Writing ? – A Comparative Analysis of 20 th  and Early 21 st  Century Poetics

    Dalva, Casandra Dawn

    2015-01-01

    Is it any good? Most readers have asked and been asked this question. But is there such a thing as a good book, or good writing? That is the question here, examined through a comparative analysis of the poetics of a group of 20th century writers: Jack Kerouac, David Foster Wallace, Stephen King and Ayn Rand. It appears that these writers, who had seemingly little in common except for the fact that they wrote fiction in America, mainly after World War 2, agree on some important aspects consid...

  3. A Confrontation between National Identity and Foreign Ideas:German Reception of John Dewey’s Educational Thought between the Early 20th Century and the Pre-period of World War II%民族认同和外来思想的碰撞--20世纪初至二战前德国对杜威教育思想的吸收

    赵康

    2016-01-01

    20世纪末以前,杜威教育思想在德国教育理论和实践中一直不被看重。虽然在德意志帝国时期古利特和凯兴斯泰纳等对杜威教育思想有所吸收,但主要是从民族主义立场对其著作进行翻译和阐释。魏玛共和国时期对自由民主的崇尚和许拉对《民主主义与教育》的译介,使这一时期德国教育学界对杜威教育思想的吸收有所扩大加深;一些教育学家将其民主思想转化在学校改革实践中。然而,这一时期杜威教育思想在德国教育实践中不仅没有产生可观影响,还遭到德国主流教育界的篡改、冷遇和贬损,导致后来杜威在德国长久被误解。为究其根源,以教育史学家特罗勒的“教育语言”概念为研究工具,发现当时德国的教育领域被精神科学教育学以及支撑此学派的“教化”语言所主导;它与德国人眼中的杜威民主教育思想发生强烈碰撞和冲突。%Dewey’s educational thought was not given due attentions in Germany until the end of the 20th century.In the period of German Empire,although Gurlitt and Kerschensteiner have used Dewey’s i-deas,they mainly translated and interpreted his thought from a nationalistic standpoint.During the period of Weimar Republic,the democratic spirits advocated by the new government and Hylla’s translation of Democracy and Education promoted German reception of Dewey’s thought.Some educators even trans-formed Dewey’s ideas into practice in their school reforms.However,Dewey’s educational ideas did not have a visible influence on German school practice,and were even misused,ignored and devalued during this period,leading to a long-term misunderstanding of Dewey in Germany.To explore its reason,the concept of “languages of education”put forward by educational historian Tröhler was used as a research in-strument.The finding shows that this phenomenon was mainly caused by the conflicts between Gei

  4. Coupled Model Simulations of Climate Changes in the 20th Century and Beyond

    YU Jiaqiang; ZHI Hai; WANG Bin; WAN Hui; LI Chai; LIU Hailong; LI Wei; ZHENG Weipeng; ZHOU Tianjun

    2008-01-01

    Several scenario experiments of the IPCC 4th Assessment Report (AR4) are performed by version g1.0 of a Flexible coupled Ocean-Atmosphere-Land System Model (FGOALS) developed at the Institute of At- mospheric Physics, Chinese Academy of Sciences (IAP/CAS), including the "Climate of the 20th century experiment", "CO2 1% increase per year to doubling experiment" and two separate IPCC greenhouse gases emission scenarios AIB and B1 experiments. To distinguish between the different impacts of natural vari- ations and human activities on the climate change, three-member ensemble runs are performed for each scenario experiment. The coupled model simulations show: (1) from 1900 to 2000, the global mean temper- ature increases about 0.5℃ and the major increase occurs during the later half of the 20th century, which is in consistent with the observations that highlights the coupled model's ability to reproduce the climate changes since the industrial revolution; (2) the global mean surface air temperature increases about 1.6℃ in the CO2 doubling experiment and 1.5℃ and 2.4℃ in the AlB and Bl scenarios, respectively. The global warming is indicated by not only the changes of the surface temperature and precipitation but also the temperature increase in the deep ocean. The thermal expansion of the sea water would induce the rise of the global mean sea level. Both the control run and the 20th century climate change run are carried out again with version g1.1 of FGOALS, in which the cold biases in the high latitudes were removed. They are then compared with those from version g1.0 of FGOALS in order to distinguish the effect of the model biases on the simulation of global warming.

  5. Coupled model simulations of climate changes in the 20th century and beyond

    Yu, Yongqiang; Zhi, Hai; Wang, Bin; Wan, Hui; Li, Chao; Liu, Hailong; Li, Wei; Zheng, Weipeng; Zhou, Tianjun

    2008-07-01

    Several scenario experiments of the IPCC 4th Assessment Report (AR4) are performed by version g1.0 of a Flexible coupled Ocean-Atmosphere-Land System Model (FGOALS) developed at the Institute of Atmospheric Physics, Chinese Academy of Sciences (IAP/CAS), including the “Climate of the 20th century experiment”, “CO2 1% increase per year to doubling experiment” and two separate IPCC greenhouse gases emission scenarios A1B and B1 experiments. To distinguish between the different impacts of natural variations and human activities on the climate change, three-member ensemble runs are performed for each scenario experiment. The coupled model simulations show: (1) from 1900 to 2000, the global mean temperature increases about 0.5°C and the major increase occurs during the later half of the 20th century, which is in consistent with the observations that highlights the coupled model’s ability to reproduce the climate changes since the industrial revolution; (2) the global mean surface air temperature increases about 1.6°C in the CO2 doubling experiment and 1.5°C and 2.4°C in the A1B and B1 scenarios, respectively. The global warming is indicated by not only the changes of the surface temperature and precipitation but also the temperature increase in the deep ocean. The thermal expansion of the sea water would induce the rise of the global mean sea level. Both the control run and the 20th century climate change run are carried out again with version g1.1 of FGOALS, in which the cold biases in the high latitudes were removed. They are then compared with those from version g1.0 of FGOALS in order to distinguish the effect of the model biases on the simulation of global warming.

  6. Alfred Werner's role in the mid-20th century flourishing of American inorganic chemistry.

    Labinger, Jay A

    2014-01-01

    The development of organic and physical chemistry as specialist fields, during the middle and end of the 19th century respectively, left inorganic behind as a decidedly less highly regarded subfield of chemistry. Despite Alfred Werner's groundbreaking studies of coordination chemistry in the early 20th century, that inferior status remained in place - particularly in the US - until the 1950s, when the beginnings of a resurgence that eventually restored its parity with the other subfields can be clearly observed. This paper explores the extent to which Werner's heritage - both direct, in the form of academic descendants, and indirect - contributed to those advances. PMID:24983802

  7. Shades of modernism. Lvov literary criticism in the late 19th and early 20th centuries

    Tomasz Sobieraj

    2016-03-01

    Full Text Available This is a review of Lwowska krytyka literacka 1894-1914. Tendencje i problemy by Katarzyna Sadkowska, an attempted monograph of the most outstanding and most representative literary criticism phenomena observed in modernist Lvov at the end of the 19th and the beginning of the 20th century. The book offers a dominant interpretation strategy typical of the cultural history of literature, presenting the analysed texts in the context of diverse relations. The monograph focuses on the achievements of Ostap Ortwin, Karol Irzykowski, Stanisław Womela and Tadeusz Sobolewski. The author has reconstructed many formerly unknown segments of modernist literary criticism in Lvov.

  8. The face and life of Lisbon movie theaters in the 20th century

    Talitha Ferraz

    2013-12-01

    Full Text Available In the book Os cinemas de Lisboa: um fenômeno do século XX [Movie theaters in Lisbon: a 20th century phenomenon], Margarida Acciaiuoli makes a discuss about the relationship between collective equipment of cinema leisure and urban settings of the Portuguese capital, signaling as the exhibition was engendered in the processes of production of social space and sociabilities of the city, over the past century. Our review highlights the issues raised by the author, about the history of cinema-building as a symbol of modern time.  

  9. Nelson Lichtenstein vs. Nelson Lichtenstein and the 20th Century Labor Question

    Donna Kesselman

    2006-03-01

    Full Text Available As Nelson Lichtenstein writes, State of the Union explores the relationship between 20th century U.S. unions and the “labor question,” i.e., the condition of workers, notably marked by social injustice, industrial strife and dislocation. Why, he asks, did labor stand far closer to the center of the nation’s political and moral consciousness than it does today and what role has institutional unionism played here? In other words, why have labor’s “larger ambitions” failed?In this paper, I hope ...

  10. Survival advantage of siblings and spouses of centenarians in 20th-century Quebec

    Robert Bourbeau

    2012-01-01

    Full Text Available Longevity runs in families, either through genetic or environmental influences. Using Quebec civil registration and historical Canadiancensuses, we compared the longevity of siblings and spouses of 806 centenarians to a group of controls, all born in Quebec at the turnof the 20th century. Our results show that siblings of centenarians, who share half of their genes and a common childhood environment,lived 3–4 years longer than their birth cohort. However, husbands and wives of centenarians lived 4 and 2.5 years longer than theircounterparts of the same sex, respectively, suggesting that longevity is also modulated by shared environment in adulthood.

  11. Advances in stability theory at the end of the 20th century

    Martynyuk, AA

    2003-01-01

    This volume presents surveys and research papers on various aspects of modern stability theory, including discussions on modern applications of the theory, all contributed by experts in the field. The volume consists of four sections that explore the following directions in the development of stability theory: progress in stability theory by first approximation; contemporary developments in Lyapunov''s idea of the direct method; the stability of solutions to periodic differential systems; and selected applications. Advances in Stability Theory at the End of the 20th Century will interest postgraduates and researchers in engineering fields as well as those in mathematics.

  12. [German-Japanese scientific exchange in urology in the early 20th century].

    Halling, T; Umehara, H; Moll, F

    2014-01-01

    This paper analyzes the importance of the German language and German culture and institutional development of urology in Japan in the early 20th century, starting from the development of the medical school for Japanese in Germany and their function in the process of modernization of the Meiji period (1868-1912). Examples of bi-directional German-Japanese relations in medicine, which also included an integrated knowledge transfer, are shown. The study is based mainly on Japanese and German sources about Japanese physicians in Germany as well as contemporary publications in German and international medical journals. Methodologically, the article combines quantitative analysis with individual biographical aspects. PMID:24452403

  13. René leriche and the development of 20th century surgery

    IONCIOAIA, BOGDAN; BUD, IOAN TEODOR; MURESAN, MIRCEA

    2016-01-01

    René Leriche (1879–1955) was a 20th century French surgeon generally known in medicine for the syndrome that carries his name, namely the Leriche syndrome in the aorto-iliac occlusive disease. This paper is published to mark the commemoration of 60 year since Leriche’s death. Although Dr. Leriche’s legacy resides in the domain of vascular medicine, his research enclosed bone pathology and surgical management of pain. Having his surgical training done under professors Mathieu Jaboulay and Anto...

  14. 20th and 21st Joint Workshop on Sustained Simulation Performance

    Bez, Wolfgang; Focht, Erich; Kobayashi, Hiroaki; Qi, Jiaxing; Roller, Sabine

    2015-01-01

    The book presents the state of the art in high-performance computing and simulation on modern supercomputer architectures. It covers trends in hardware and software development in general, and the future of high-performance systems and heterogeneous architectures specifically. The application contributions cover computational fluid dynamics, material science, medical applications and climate research. Innovative fields like coupled multi-physics or multi-scale simulations are also discussed. All papers were chosen from presentations given at the 20th Workshop on Sustained Simulation Performance in December 2014 at the HLRS, University of Stuttgart, Germany, and the subsequent Workshop on Sustained Simulation Performance at Tohoku University in February 2015.  .

  15. PLOT REELED INTO AN EKPHRASIS IN BELLES LETTRES OF THE BEGINNING OF THE 20TH CENTURY

    Elena Vasil’evna Astaschenko

    2015-01-01

    Plots reeled into the ekphrasis have always existed. In belles lettres of the beginning of the 20th century, the fight between the pagan and the Christian manifests in the opposition of scenic space and it creates a powerful «magnetic» field. This is a special type of mythologism in which the Christian imagery is on the positive side of the binary opposition with its respective system of ethical coordinates. In «polytheistic systems, the presentations of evil is static as of the essential and...

  16. Assortative mating and differential fertility by phenotype and genotype across the 20th century.

    Conley, Dalton; Laidley, Thomas; Belsky, Daniel W; Fletcher, Jason M; Boardman, Jason D; Domingue, Benjamin W

    2016-06-14

    This study asks two related questions about the shifting landscape of marriage and reproduction in US society over the course of the last century with respect to a range of health and behavioral phenotypes and their associated genetic architecture: (i) Has assortment on measured genetic factors influencing reproductive and social fitness traits changed over the course of the 20th century? (ii) Has the genetic covariance between fitness (as measured by total fertility) and other traits changed over time? The answers to these questions inform our understanding of how the genetic landscape of American society has changed over the past century and have implications for population trends. We show that husbands and wives carry similar loadings for genetic factors related to education and height. However, the magnitude of this similarity is modest and has been fairly consistent over the course of the 20th century. This consistency is particularly notable in the case of education, for which phenotypic similarity among spouses has increased in recent years. Likewise, changing patterns of the number of children ever born by phenotype are not matched by shifts in genotype-fertility relationships over time. Taken together, these trends provide no evidence that social sorting is becoming increasingly genetic in nature or that dysgenic dynamics have accelerated. PMID:27247411

  17. Banknote Typography with a Particular Reference to Croatia through the 20th Century

    Vilko Žiljak

    2011-12-01

    Full Text Available The aim of the paper is the research of transformation of formatting information on banknotes during the 20th century, which is the period of some of the greatest graphical innovations after Gutenberg’s invention of movable type printing. Computer graphics had taken over in the field of typography in the exact moment of hand engraving’s highest level of art in the creation of the font cut. About forty years ago, the era of etching used in copper etching and steel engraving in hand - made drawings had begun, along with the use of phototypesetting as the representative of digital technology. Quality of the written lines has introduced microtypography as a special method of rasterization in the background of banknotes. In Croatia, the above mentioned modifications are present through the works of our typographers, even though the multiplication of banknotes was done in foreign printing houses that had appropriately protected printing technology. The paper contributes to the scientific analysis of the technical aspect of banknote making on Croatia’s soil during the course of the 20th century, and this, with the methods of analysis and synthesis incorporated, gives a clear picture and transparency into the method of banknote making, both from a technological and development cycle - making aspect. Given the fact that not only the Croatian banknotes are examined, analysis contributes to comparative procedures of local scopes in the field of technological manufacture of other banknotes that belong to the same time period.

  18. Model-based constraints on interpreting 20th century trends in ice core 10Be

    Field, Christy V.; Schmidt, Gavin A.

    2009-06-01

    Beryllium-10 ice-core records are useful for understanding solar magnetic field changes over time, and in particular over the 20th century, during which there are a variety of relevant observations. However, differences between 10Be snow concentration records from different locations complicate the process of developing a coherent understanding of changes in cosmogenic isotope production. We use the Goddard Institute for Space Studies ModelE general circulation model to simulate the production and transport of beryllium isotopes for this time period. We compare our results with surface air observations, and with ice-core records from Dye 3, Taylor Dome, and South Pole. We find that unforced weather-related (internal) variability causes modeled trends in 10Be snow concentration to vary from the ensemble mean by 50% and greater at all three ice-core locations. Lower levels of internal variability at Taylor Dome and South Pole relative to Dye 3 make the simulated 10Be values at these locations better estimates of the ensemble-mean trend in 10Be snow concentration. In addition, the ensemble mean concentration trend at Dye 3 was significantly different from the expected modeled trend based on applied production changes alone. Overall, the results imply that during the 20th century, 10Be data from multiple cores are likely to be required to make meaningful inferences about 10Be production changes. The model simulations imply that data from Antarctica are likely to be more robust.

  19. Defense Industry of the Russian Federation at the End of 20th-Beginning of the 21st Century

    Leonovich Aleksandr Nikolaevich

    2014-11-01

    Full Text Available In the developed countries claiming for global leadership permanent military and industrial complexes were formed. These complexes produce high-tech products and play the key system-forming role in the economies of their states. Country’s position in world economy as well as its position at the weapons and military equipment market depends on the military and industrial complexes development. At the end of the 20th century, there had been great changes in the military and industrial complex of the Russian Federation. Drastic remission and demerger accompanied these changes unlike those in the Unites States and Western Europe. These processes were determined by inconsiderate defense conversion, reduction of expenses and the loss of weapons and military equipment production. At the beginning of the 21st century, Russian Federation government has changed its attitude towards the military and industrial complex. Main directions of surmounting the crisis were found through creation of military and industrial corporations, increase of state defense order in the favor of national Armed Forces. Development of state-owned corporations and significant increase in financial allocations for state defense order promoted the growth of military and industrial companies’ activity and rise in weapons and military equipment export. All above-listed processes of Russian military and industrial complexes predetermined the scientific and pragmatic interest for this research.

  20. Evolution of forest cover in Portugal:A review of the 12th-20th centu-ries

    Fernando Reboredo; João Pais

    2014-01-01

    Portugal’s forests in the 12th century were dominated by the Fagaceae represented by Quercus and Castanea, and several pine species. From the 12th century onwards, forests underwent changes in their man-agement starting with protection and ultimately leading to intense ex-ploitation. The massive naval construction during the maritime expansion (mainly in the 15th-16th centuries) involved felling of approximately 5 million trees mainly Quercus suber, Pinus pinea and other Quercus species. Cumulative fuel-wood consumption of 959 Mm3 during 1300-1854 was attributed to demographic expansion while the deforesta-tion rate during 1636-1854 accounted for a minimum of 72.6% and a maximum of 96% of total forest cover. The volume of timber used in railway sleepers from 1856 onwards might have reached 0.5 Mm3. The last quarter of the 20th century increased the forest cover of Portugal through the World Bank program of Eucalyptus globulus reforestation.

  1. 70th birthday of Reinhard Folk

    Editorial Board

    2015-06-01

    Full Text Available On April 29, 2015 Reinhard Folk - member of the Editorial Board of "Condensed Matter Physics", renowned expert in the fields of condensed matter physics, phase transitions and critical phenomena - celebrated his 70th birthday. Reinhard Folk was born in Neuendettelsau, Germany. He studied at the University of Vienna, where in 1973 he defended his doctoral thesis "Hydrodynamic Equations of Dielectric Crystals" (under supervision of Franz Schwabl. In the same year he started working at the Institute for Theoretical Physics, Johannes Kepler University in Linz, at first as assistant, later as an associate professor, then as extraordinary professor, and finally as Director of the research group "Phase Transitions and Critical Phenomena". His research interests cover various fields of condensed matter physics. In particular, he obtained important results in the theory of ferroelectrics, quantum liquids, critical phenomena in magnets and random systems, spin liquids, superconductors, and neural networks. Reinhard Folk and his collaborators performed a series of studies that became the basis for understanding and quantitative description of phenomena occurring in many systems. Included amongst these are the description of the thermodynamic properties of matter in the vicinity of Lifshitz points, the description of critical dynamics in systems with different types of conservation laws, the analysis of effective (non-asymptotic critical behaviour, and generalized hydrodynamics of many-particle systems. Computing algorithms, resummation methods of asymptotic perturbation series proposed by Reinhard Folk and his collaborators, cover a wide range of applications. In 1982 (together with Volker Dohm he was awarded the Walter Schottky Prize of the German Physical Society for his studies of the critical dynamics of helium-4 . Those of us who were fortunate to know Reinhard Folk closer, are aware of his interests in the history of culture and the history of

  2. Determination and characterization of 20th century global sea level rise

    Kuo, Chung-Yen

    In this study, we provide a determination of the 20th Century (1900--2002) global sea level rise, the associated error budgets, and the quantifications of the various geophysical sources of the observed sea level rise, using data and geophysical models. We analyzed significant geographical variations of the global sea level including those caused by the steric component (heat and salinity) in the ocean, and the self-gravitational signal as a result of ice sheets melting, including the effects of glacial isostatic adjustment (GIA) since the Pleistocene. In particular, relative sea level data from long-term (longest is 150 year records) and over 600 tide gauge sites globally from PSMSL and other sources, and geocentric sea level data from multiple satellite altimetry (1985--2005) have been used to determine and characterize 20th century global sea level rise. Altimeter and selected tide gauge sea level data have been used for the 20th century sea level determination, accounting for relative biases between the altimeters, effects of sea level corresponding to oceanic thermal expansion, vertical motions affecting tide gauge measurements, self gravitations, and barotropic ocean response. This study is also characterized by the roles of the polar ocean in the global sea level study and addressing the question whether there is a detectable sea level rise acceleration during the last decade. Vertical motions have been estimated by combining geocentric sea level measurements from satellite altimetry (TOPEX/POSEIDON) and long-term relative (crust-fixed) sea level records from global tide gauges using the Gauss-Markov (GM) model with stochastic constraints. The study provided a demonstration of improved vertical motion solutions in semi-enclosed seas and lakes, including Fennoscandia and the Great Lakes region, showing excellent agreement with independent GPS observed radial velocities, or with predictions from GIA models. In general, the estimated uncertainty of the observed

  3. The municipal continuum: Research on maritime water pollution in Helsinki in the 20th century

    Laurila, S. K. [Helsinki Univ. (Finland). Dept. of Social History; Laakkonen, S. J. [Helsinki Univ. (Finland). Dept. of Social Policy

    2004-07-01

    In general, the history of environmental research is not known very well. Our study contributes to filling this gap by focusing on the history of the methods that were used during the 20th century to study the state of the urban sea area in Helsinki, Finland. From the beginning of the past century, the methodological basis of municipal water pollution studies in Helsinki was broad, involving the use of physical, chemical, hygienic and biological methods. Since 1904, municipal laboratories have overseen and conducted most physico-chemical and bacteriological studies of pollution of urban watercourses, and they have done regular annual sampling since 1947. In the 1920s and 1930s, the municipal laboratories cooperated with the University of Helsinki and, secondarily, with the Helsinki University of Technology in order to develop the skills and manpower that were required in order to conduct pollution studies. Statutory monitoring was initiated in the mid-1960s, and it continues today. (orig.)

  4. Anthropogenic aerosols may have increased upper tropospheric humidity in the 20th century

    M. Bister

    2011-05-01

    Full Text Available Recent simulations of deep convection with a spectral microphysics cloud model show that an increase in aerosol concentration can have a significant effect on the nature of convection with more ice precipitation and less warm rain in polluted air. The cloud lifetime and the area covered by cloud anvils of deep convection are also larger for polluted air. Therefore, it is possible that the increase of anthropogenic aerosols in most of the 20th century has increased humidity and perhaps also cloudiness in the mid- to upper troposphere. Satellite data of upper tropospheric relative humidity in 1979–1997 and observed changes in cloudiness support this hypothesis. As changes in upper tropospheric humidity strongly affect longwave radiation, it is possible that anthropogenic aerosols have had a significant warming effect in addition to their other known effects on radiation.

  5. Brief Communication: Global glacier mass loss reconstructions during the 20th century are consistent

    B. Marzeion

    2015-07-01

    Full Text Available Estimates of the contribution of glaciers to sea-level rise during the 20th century that were published in recent years are strongly divergent. Advances in data availability have allowed revisions of some of these published estimates. Here we show that outside of Antarctica, the global estimates of glacier mass loss obtained from glacier-length-based reconstructions and from a glacier model driven by gridded climate observations are now consistent with each other, and also with an estimate for the years 2003–2009 that is mostly based on remotely sensed data. This consistency is found throughout the entire common periods of the respective data sets. Inconsistencies of reconstructions and observations persist in estimates on regional scales.

  6. Brief Communication: Global glacier mass loss reconstructions during the 20th century are consistent

    Marzeion, B.; Leclercq, P. W.; Cogley, J. G.; Jarosch, A. H.

    2015-07-01

    Estimates of the contribution of glaciers to sea-level rise during the 20th century that were published in recent years are strongly divergent. Advances in data availability have allowed revisions of some of these published estimates. Here we show that outside of Antarctica, the global estimates of glacier mass loss obtained from glacier-length-based reconstructions and from a glacier model driven by gridded climate observations are now consistent with each other, and also with an estimate for the years 2003-2009 that is mostly based on remotely sensed data. This consistency is found throughout the entire common periods of the respective data sets. Inconsistencies of reconstructions and observations persist in estimates on regional scales.

  7. Atom pictures. Iconography of the atom in science and public of the 20th century

    The 20th century can be described as century of the atom. From the development of molecular models until nanotechnology, from Becquerel's discovery of the radioactivity until the reactor accident in Chernobyl was and remains the atom subject of the research as well as of the discussion in culture and politics. Thereby the concept and the imagination of the ''atom'' have been subjected to manifold changes, which were essentially generated by pictures. The volume summarizes famous as well as less famous pictures from laboratories, exhibitions, publications, and films. It gives both a contribution to the history of science and culture and a summarizing of different disciplinary approaches to the circulation of pictures between science and public

  8. Impacts of external forcing on the 20th century global warming

    2007-01-01

    The impacts of external forcing, including natural and anthropogenic, on the 20th century global warming were assessed with the use of the Grid Atmospheric Model of IAP/LASG Version 1.1.0, following the standard coordinated experiment design of the Climate Variability and Predictability (CLIVAR) International Climate of the Twentieth Century Project (C20C), Phase II. The results indicate that external forcing plays an important role in the evolution of the land surface air temperature on interannual, decadal, and interdecadal time scales, and contributes greatly to the global warming in the following two periods: the early twentieth century between the 1910s and the 1940s and the late twentieth century after the 1970s. External forcing also has strong impact on the regional temperature change during the two warming periods except for parts of the Eurasia and the North America continents. In the cooling period, however, the impact of internal variability is dominant.

  9. Long-term non-linear predictability of ENSO events over the 20th century

    Astudillo, H F; Borotto, F A

    2015-01-01

    We show that the monthly recorded history (1878-2013) of the Southern Oscillation Index (SOI), a descriptor of the El Ni\\~no Southern Oscillation (ENSO) phenomenon, can be well described as a dynamic system that supports an average nonlinear predictability well beyond the spring barrier. The predictability is strongly linked to a detailed knowledge of the topology of the attractor obtained by embedding the SOI index in a wavelets base state space. Using the state orbits on the attractor we show that the information contained in the Southern Oscillation Index (SOI) is sufficient to provide average nonlinear predictions for time periods of 2, 3 and 4 years in advance throughout the 20th century with an acceptable error. The simplicity of implementation and ease of use makes it suitable for studying non linear predictability in any area where observations are similar to those that describe the ENSO phenomenon.

  10. WILLIAM GURNEE SINNIGEN - 20TH CENTURY CLASSICIST AND ROMAN HISTORIAN: BIOGRAPHY & BIBLIOGRAPHY

    Matthew Gray Marsh

    2016-04-01

    Full Text Available William Gurnee Sinnigen was a Classicist and Roman historian, active in the mid-to-late 20th century. Trained at the University of Michigan by noted Roman administrative historian Arthur E. R. Boak, Sinnigen continued his mentor’s work in administrative history, producing several articles on different aspects of Roman and Byzantine administrative topics.  Sinnigen was also responsible for the revision and update of Boak’s acclaimed textbook on Roman history, as well as Charles Alexander Robinson’s textbook on Ancient history.  This article will provide a brief biography of Professor Sinnigen, along with a bibliography of his published works and reviews by other scholars of his work.

  11. Cloud tuning in a coupled climate model: Impact on 20th century warming

    Golaz, J.-C.; Golaz, Jean-Christophe; Levy, Hiram

    2013-05-01

    Climate models incorporate a number of adjustable parameters in their cloud formulations. They arise from uncertainties in cloud processes. These parameters are tuned to achieve a desired radiation balance and to best reproduce the observed climate. A given radiation balance can be achieved by multiple combinations of parameters. We investigate the impact of cloud tuning in the CMIP5 GFDL CM3 coupled climate model by constructing two alternate configurations. They achieve the desired radiation balance using different, but plausible, combinations of parameters. The present-day climate is nearly indistinguishable among all configurations. However, the magnitude of the aerosol indirect effects differs by as much as 1.2 Wm - 2, resulting in significantly different temperature evolution over the 20th century.

  12. Modeling the temperature evolution of Svalbard permafrost during the 20th and 21st century

    Etzelmüller, B.; Schuler, T. V.; Isaksen, K.; Christiansen, H. H.; Farbrot, H.; Benestad, R.

    2011-02-01

    Variations in ground thermal conditions in Svalbard were studied based on measurements and modelling. Ground temperature data from boreholes were used to calibrate a transient heat flow model describing depth and time variations in temperatures. The model was subsequently forced with historical surface air temperature records and possible future temperatures downscaled from multiple global climate models. We discuss ground temperature development since the early 20th century, and the thermal responses in relation to ground characteristics and snow cover. The modelled ground temperatures show a gradual increase between 1912 and 2010, by about 1.5 °C to 2 °C at 20 m depth. The active layer thickness (ALT) is modelled to have increased slightly, with the rate of increase depending on water content of the near-surface layers. The used scenario runs predict a significant increase in ground temperatures and an increase of ALT depending on soil characteristics.

  13. Spatial Database of Geological Survey Extent in 20th Century in China

    Wang Quanming; Ye Tianzhu; Fang Yiping; Chen Jianguo; Li Shuyu; Zhang Daquan

    2003-01-01

    During the whole 20th century in China, especially the latest 50 years, we have gotten much geological information about geological mapping, geophysics, geochemistry, mineral exploration,remote sensing, environmental geology, hydrogeoiogy, engineering geology and oceanic geology etc. by our geologists and explorers. All the information has been accumulated and can be used as a decisionmaking foundation for the future plan of geological survey. The spatial database of geological survey extents has been established by using computer technology. The database contained all kinds of exploration sections and collected about 160 000 records in this database. This paper introduces the data construction, contents and applying system of this database, and trys to let people know what kinds of geological survey were finished, when the exploration were carried out, and how and where you can get this information.

  14. Medieval Warm Period, Little Ice Age and 20th century temperature variability from Chesapeake Bay

    Cronin, T. M.; Dwyer, G.S.; Kamiya, T.; Schwede, S.; Willard, D.A.

    2003-01-01

    We present paleoclimate evidence for rapid (Ice Age (???1400-1900 AD) and the Medieval Warm Period (???800-1300 AD) possibly related to changes in the strength of North Atlantic thermohaline circulation (THC). Evidence is presented for a long period of sustained regional and North Atlantic-wide warmth with low-amplitude temperature variability between ???450 and 1000 AD. In addition to centennial-scale temperature shifts, the existence of numerous temperature maxima between 2200 and 250 years BP (average ???70 years) suggests that multi-decadal processes typical of the North Atlantic Oscillation (NAO) are an inherent feature of late Holocene climate. However, late 19th and 20th century temperature extremes in Chesapeake Bay associated with NAO climate variability exceeded those of the prior 2000 years, including the interval 450-1000 AD, by 2-3??C, suggesting anomalous recent behavior of the climate system. ?? 2002 Elsevier Science B.V. All rights reserved.

  15. Causes of mortality and development: Evidence from large health shocks in 20th century America

    Worm Hansen, Casper

    Exploiting pre-intervention variation in flu/pneumonia, tuberculosis and maternal mortality, together with time variation arising from medical breakthroughs starting in the late 1930s, this paper studies the aggregate impact of large health shocks across US states. The analysis demonstrates that...... the shocks influenced income per capita in different ways. While the shock to flu/pneumonia mortality has been conductive for development, the large reduction in the incidence of tuberculosis deaths has been a negative force in the development of US states over the second-half of 20th century. In...... addition, the decline in maternal mortality has a fragile, but positive relationship with income per capita. Because these specific health shocks affected mortality across the life cycle differently, the evidence here underscores the general tenet of regarding health as multifaceted....

  16. [Sexual stereotypes of institutional confinement in Quebec, at the turn of the 20th century].

    Thifault, Marie-Claude

    2010-01-01

    This paper concerning the men and women patients of the Hôpital Saint-Jean-de-Dieu investigates gender stereotyping in mental disorders during the late-19th and early-20th centuries through an analysis of quantitative sources from over 8357 admissions. The asylum records (Registre des idiots de la Providence and the medical record, Form C) reveal that there were few differences between the medical diagnoses given and the behaviours of the patients who had been judged insane by their families. Nevertheless, a number of interesting contrasts emerge. The evidence also indicates gender distinctions; in general, the applicants tended to deny feeble-mindedness in men but recognized it as natural in women. PMID:20533782

  17. Corpus methods and their reflection in linguistic theories of the 20th century

    Simon Krek

    2013-05-01

    Full Text Available In the 20th century structuralism established itself as the central linguistic theory, in the first half mainly through its originator Ferdinand de Saussure, and in the second half with the figure of Noam Chomsky. The latter consistently refused to acknowledge analysis of extensive quantity of texts as a valuable method, and favoured linguistic intuition of a native speaker instead. In parallel with structuralism other trends in linguistics emerged which pointed to the inadequateness of the prevailing linguistic paradigm and to theoretical insights which were only possible after the systematic analysis of large quantities of texts. The paper discusses some of the dilemmas stemming from this dichotomy and places corpus linguistics in a broader linguistic context.

  18. Brief Communication: Global reconstructions of glacier mass change during the 20th century are consistent

    Marzeion, B.; Leclercq, P. W.; Cogley, J. G.; Jarosch, A. H.

    2015-12-01

    Recent estimates of the contribution of glaciers to sea-level rise during the 20th century are strongly divergent. Advances in data availability have allowed revisions of some of these published estimates. Here we show that outside of Antarctica, the global estimates of glacier mass change obtained from glacier-length-based reconstructions and from a glacier model driven by gridded climate observations are now consistent with each other, and also with an estimate for the years 2003-2009 that is mostly based on remotely sensed data. This consistency is found throughout the entire common periods of the respective data sets. Inconsistencies of reconstructions and observations persist in estimates on regional scales.

  19. Changes in skin tanning attitudes. Fashion articles and advertisements in the early 20th century.

    Martin, Jo M; Ghaferi, Jessica M; Cummins, Deborah L; Mamelak, Adam J; Schmults, Chrys D; Parikh, Mona; Speyer, Lark-Aeryn; Chuang, Alice; Richardson, Hazel V; Stein, David; Liégeois, Nanette J

    2009-12-01

    Historical reviews suggest that tanning first became fashionable in the 1920s or 1930s. To quantitatively and qualitatively examine changes in tanning attitudes portrayed in the popular women's press during the early 20th century, we reviewed summer issues of Vogue and Harper's Bazaar for the years 1920, 1927, 1928, and 1929. We examined these issues for articles and advertisements promoting skin tanning or skin bleaching and protection. We found that articles and advertisements promoting the fashionable aspects of tanned skin were more numerous in 1928 and 1929 than in 1927 and 1920, whereas those promoting pale skin (by bleaching or protection) were less numerous. These findings demonstrate a clear shift in attitudes toward tanned skin during this period. PMID:19846688

  20. Simulation of Sea Ice in FGOALS-g2: Climatology and Late 20th Century Changes

    XU Shiming; SONG Mirong; LIU Jiping; WANG Bin; LI Lijuan; HUANG Wenyu; LIU Li

    2013-01-01

    Sea ice is an important component in the Earth's climate system.Coupled climate system models are indispensable tools for the study of sea ice,its internal processes,interaction with other components,and projection of future changes.This paper evaluates the simulation of sea ice by the Flexible Global Ocean-Atmosphere-Land System model Grid-point Version 2 (FGOALS-g2),in the fifth phase of the Coupled Model Inter-comparison Project (CMIP5),with a focus on historical experiments and late 20th century simulation.Through analysis,we find that FGOALS-g2 produces reasonable Arctic and Antarctic sea ice climatology and variability.Sea ice spatial distribution and seasonal change characteristics are well captured.The decrease of Arctic sea ice extent in the late 20th century is reproduced in simulations,although the decrease trend is lower compared with observations.Simulated Antarctic sea ice shows a reasonable distribution and seasonal cycle with high accordance to the amplitude of winter summer changes.Large improvement is achieved as compared with FGOALS-g1.0 in CMIP3.Diagnosis of atmospheric and oceanic forcing on sea ice reveals several shortcomings and major aspects to improve upon in the future:(1) ocean model improvements to remove the artificial island at the North Pole;(2) higher resolution of the atmosphere model for better simulation of important features such as,among others,the Icelandic Low and westerly wind over the Southern Ocean; and (3) ocean model improvements to accurately receive freshwater input from land,and higher resolution for resolving major water channels in the Canadian Arctic Archipelago.

  1. On the transformation of antique stories and images in German literature of the 20th century

    Sharypina T. A.

    2016-01-01

    Full Text Available On the basis of analysis of Russian and foreign scholars, the work is aimed at studying the specificity of the transformation of antique stories and images, which is the desired model in the art of the 20th century thanks to its fluidity and unlimited variability. Actualization of antique stories and images in the works of German-language writers account for life-changing moments of social life, the periods of losing of constant moral landmarks and the periods of looking for new moral and aesthetic ideals. The analysis of the reception and transformation of mythological stories and images in the contemporary literature proves the conception of its polysemy. The built-in contradiction of myths is realized through the transformation of mythological stories and images in the literary works of contemporary writers and is explained by the individuality of writers and theirs aesthetic aims. On the one side, the absence de facto in German drama of the 20th century of interpretations of the story about Achilles and of the image of Achilles, and numerous variations on the topic of moral strivings of fearless and peccant Ulysses, on the other side, are proving the statements of classic aesthetic that the tragedy is based on the conflict, which is close to lofty and linked with the idea of dignity of the man, which is ready and capable of promoting the views of his own by the real acts that are often lead to suffer and death. According to Aristotle, the sympathy for the character leads to catharsis - the basis of education of real civic-mindedness and humanness.

  2. Fire dynamics during the 20th century simulated by the Community Land Model

    Kloster, Silvia [Cornell University; Mahowald, Natalie [Cornell University; Randerson, Jim [University of California, Irvine; Thornton, Peter E [ORNL; Hoffman, Forrest M [ORNL; Levis, Sam [National Center for Atmospheric Research (NCAR); Lawrence, Peter J. [National Center for Atmospheric Research (NCAR); Feddema, Johan J. [University of Kansas; Oleson, Keith [National Center for Atmospheric Research (NCAR); Lawrence, David M. [National Center for Atmospheric Research (NCAR)

    2011-01-01

    Fire is an integral Earth System process that interacts with climate in multiple ways. Here we assessed the parametrization of fires in the Community Land Model (CLM-CN) and improved the ability of the model to reproduce contemporary global patterns of burned areas and fire emissions. In addition to wildfires we extended CLM-CN to account for fires related to deforestation. We compared contemporary fire carbon emissions predicted by the model to satellite-based estimates in terms of magnitude and spatial extent as well as interannual and seasonal variability. Long-term trends during the 20th century were compared with historical estimates. Overall we found the best agreement between simulation and observations for the fire parametrization based on the work by Arora and Boer (2005). We obtained substantial improvement when we explicitly considered human caused ignition and fire suppression as a function of population density. Simulated fire carbon emissions ranged between 2.0 and 2.4 Pg C/year for the period 1997 2004. Regionally the simulations had a low bias over Africa and a high bias over South America when compared to satellite-based products. The net terrestrial carbon source due to land use change for the 1990s was 1.2 Pg C/year with 11% stemming from deforestation fires. During 2000 2004 this flux decreased to 0.85 Pg C/year with a similar relative contribution from deforestation fires. Between 1900 and 1960 we predicted a slight downward trend in global fire emissions caused by reduced fuels as a consequence of wood harvesting and also by increases in fire suppression. The model predicted an upward trend during the last three decades of the 20th century as a result of climate variations and large burning events associated with ENSO-induced drought conditions.

  3. Simulating the 20th Century Arctic Climate Using A Global Coupled Atmosphere-Ice-Ocean Model

    Wang, J.; Watanabe, E.; Jin, M.; Hasumi, H.

    2006-12-01

    The simulations of the Arctic ice-ocean circulation using the high resolution global coupled atmosphere-ice- ocean model with 1/6x1/4 degrees and 48 vertical layers on the `Earth Simulator' supercomputer was evaluated to determine the model performance, physics soundness, and its sensitivity to different process parameterizations. The model was parameterized by GM (Gent and McWilliams 1990) parameterization to the north of 45N. The statistical time series of the total oceanic and ice kinetic energy and ice areas suggest that there is an equilibrium without any T/S restoring or flux adjustment, and no model drifting is found. The model climatology (mean over all the model years) and variability were examined and compared with the available observations, such as ice area, temperature and salinity at certain key depths and transects. Several important physical features in the Northern Hemisphere, such as the thermohaline in the Arctic Ocean, Atlantic Water, meridional thermohaline overturning, transports from Bering Strait, Fram Strait etc., were examined to determine physical soundness of the model. An important achievement is that the Atlantic Layer in the Arctic can be reasonably reproduced with no restoring temperature and salinity to observations. An important criterion of reproducing the Atlantic Layer variability is measured by the core (max) temperature of the layer of 500-1500m. The model produces reasonably the 20th century Atlantic Water core temperature that compares well with observation by Polyakov et al. (2004). The model catches the 1930s-40s warming and the 1990s warming, similar to the observation. These results indicate that this coupled global model captures most important dynamic and thermodynamic processes in the Arctic Ocean. Furthermore, the winter Dipole Anomaly (DA) and the Arctic Oscillation (AO) in the Arctic atmosphere and their contribution to sea ice export are investigated using the 20th century simulation.

  4. Fire dynamics during the 20th century simulated by the Community Land Model

    Kloster, S.; Mahowald, N. M.; Randerson, J. T.; Thornton, P. E.; Hoffman, F. M.; Levis, S.; Lawrence, P. J.; Feddema, J. J.; Oleson, K. W.; Lawrence, D. M.

    2010-06-01

    Fire is an integral Earth System process that interacts with climate in multiple ways. Here we assessed the parametrization of fires in the Community Land Model (CLM-CN) and improved the ability of the model to reproduce contemporary global patterns of burned areas and fire emissions. In addition to wildfires we extended CLM-CN to account for fires related to deforestation. We compared contemporary fire carbon emissions predicted by the model to satellite-based estimates in terms of magnitude and spatial extent as well as interannual and seasonal variability. Long-term trends during the 20th century were compared with historical estimates. Overall we found the best agreement between simulation and observations for the fire parametrization based on the work by Arora and Boer (2005). We obtained substantial improvement when we explicitly considered human caused ignition and fire suppression as a function of population density. Simulated fire carbon emissions ranged between 2.0 and 2.4 Pg C/year for the period 1997-2004. Regionally the simulations had a low bias over Africa and a high bias over South America when compared to satellite-based products. The net terrestrial carbon source due to land use change for the 1990s was 1.2 Pg C/year with 11% stemming from deforestation fires. During 2000-2004 this flux decreased to 0.85 Pg C/year with a similar relative contribution from deforestation fires. Between 1900 and 1960 we predicted a slight downward trend in global fire emissions caused by reduced fuels as a consequence of wood harvesting and also by increases in fire suppression. The model predicted an upward trend during the last three decades of the 20th century as a result of climate variations and large burning events associated with ENSO-induced drought conditions.

  5. Fire dynamics during the 20th century simulated by the Community Land Model

    S. Kloster

    2010-06-01

    Full Text Available Fire is an integral Earth System process that interacts with climate in multiple ways. Here we assessed the parametrization of fires in the Community Land Model (CLM-CN and improved the ability of the model to reproduce contemporary global patterns of burned areas and fire emissions. In addition to wildfires we extended CLM-CN to account for fires related to deforestation. We compared contemporary fire carbon emissions predicted by the model to satellite-based estimates in terms of magnitude and spatial extent as well as interannual and seasonal variability. Long-term trends during the 20th century were compared with historical estimates. Overall we found the best agreement between simulation and observations for the fire parametrization based on the work by Arora and Boer (2005. We obtained substantial improvement when we explicitly considered human caused ignition and fire suppression as a function of population density. Simulated fire carbon emissions ranged between 2.0 and 2.4 Pg C/year for the period 1997–2004. Regionally the simulations had a low bias over Africa and a high bias over South America when compared to satellite-based products. The net terrestrial carbon source due to land use change for the 1990s was 1.2 Pg C/year with 11% stemming from deforestation fires. During 2000–2004 this flux decreased to 0.85 Pg C/year with a similar relative contribution from deforestation fires. Between 1900 and 1960 we predicted a slight downward trend in global fire emissions caused by reduced fuels as a consequence of wood harvesting and also by increases in fire suppression. The model predicted an upward trend during the last three decades of the 20th century as a result of climate variations and large burning events associated with ENSO-induced drought conditions.

  6. Fire dynamics during the 20th century simulated by the Community Land Model

    S. Kloster

    2010-01-01

    Full Text Available Fire is an integral Earth System process that interacts with climate in multiple ways. Here we assessed the parametrization of fires in the Community Land Model (CLM-CN and improved the ability of the model to reproduce contemporary global patterns of burned areas and fire emissions. In addition to wildfires we extended CLM-CN to account for fires related to deforestation. We compared contemporary fire carbon emissions predicted by the model to satellite based estimates in terms of magnitude, spatial extent as well as interannual and seasonal variability. Longterm trends during the 20th century were compared with historical estimates. Overall we found the best agreement between simulation and observations for the fire parametrization based on the work by Arora and Boer (2005. We obtain substantial improvement when we explicitly considered human caused ignition and fire suppression as a function of population density. Simulated fire carbon emissions ranged between 2.0 and 2.4 Pg C/year for the period 1997–2004. Regionally the simulations had a low bias over Africa and a high bias over South America when compared to satellite based products. The net terrestrial carbon source due to land use change for the 1990s was 1.2 Pg C/year with 11% stemming from deforestation fires. During 2000–2004 this flux decreased to 0.85 Pg C/year with a similar relative contribution from deforestation fires. Between 1900 and 1960 we simulated a slight downward trend in global fire emissions, which is explained by reduced fuels as a consequence of wood harvesting and partly by increasing fire suppression. The model predicted an upward trend in the last three decades of the 20th century caused by climate variations and large burning events associated with ENSO induced drought conditions.

  7. Observed and model simulated 20th century Arctic temperature variability: Canadian Earth System Model CanESM2

    Chylek, P.; Li, J.; Dubey, M. K.; Wang, M.; Lesins, G.

    2011-08-01

    We present simulations of the 20th century Arctic temperature anomaly from the second generation Canadian Earth System Model (CanESM2). The new model couples together an atmosphere-ocean general circulation model, a land-vegetation model and terrestrial and oceanic interactive carbon cycle. It simulates well the observed 20th century Arctic temperature variability that includes the early and late 20th century warming periods and the intervening 1940-1970 period of substantial cooling. The addition of the land-vegetation model and the terrestrial and oceanic interactive carbon cycle to the coupled atmosphere-ocean model improves the agreement with observations from 1900-1970, however, it increases the overestimate of the post 1970 warming. In contrast the older generation coupled atmosphere-ocean general circulation models Canadian CanCM3 and NCAR/LANL CCSM3, used in the IPCC 2007 climate change assessment report, overestimate the rate of the 20th century Arctic warming by factor of two to three and they are unable to reproduce the observed 20th century Arctic climate variability.

  8. Observed and model simulated 20th century Arctic temperature variability: Canadian Earth System Model CanESM2

    P. Chylek

    2011-08-01

    Full Text Available We present simulations of the 20th century Arctic temperature anomaly from the second generation Canadian Earth System Model (CanESM2. The new model couples together an atmosphere-ocean general circulation model, a land-vegetation model and terrestrial and oceanic interactive carbon cycle. It simulates well the observed 20th century Arctic temperature variability that includes the early and late 20th century warming periods and the intervening 1940–1970 period of substantial cooling. The addition of the land-vegetation model and the terrestrial and oceanic interactive carbon cycle to the coupled atmosphere-ocean model improves the agreement with observations from 1900–1970, however, it increases the overestimate of the post 1970 warming. In contrast the older generation coupled atmosphere-ocean general circulation models Canadian CanCM3 and NCAR/LANL CCSM3, used in the IPCC 2007 climate change assessment report, overestimate the rate of the 20th century Arctic warming by factor of two to three and they are unable to reproduce the observed 20th century Arctic climate variability.

  9. From posters to displaying: poster communication in Osijek in the early 20th century

    Zoran Velagić

    2008-07-01

    Full Text Available There are many monographs, articles, chapters and exhibitions and their catalogues dedicated to Croatian posters from the early 20th century. Posters are evaluated as works of art, but received very little attention as an advertising medium. Their communication and advertising role in the specified time and place has not been investigated thoroughly. This paper does not investigate the relationship between the artistic and marketoriented aspects of posters, neither does it evaluate which and what type of posters deserve to be considered works of art. It focuses on how and where did people in the early 20th century used posters to inform themselves about new events and products. Posters are viewed only as a communicative and promotion medium, and the place where they were displayed as a sort of an information hub.The authors investigate the possibility of using two types of historical resources: city administration documents that regulated the displaying of posters and different pictures - like postcards, newspaper photos showing current events, posters and notice-boards or columns. The city of Osijek is selected as a case study for this approach. As the appropriation of posters is determined by their content, graphic design and place where they are displayed, the aim of the paper is to investigate the possible resources that can help us reconstruct the procedures and locations for poster displays. Following the methodology proposed by Robert Darnton, who listed five possible approaches to investigating different texts, and by Roger Chartier’s papers in which he stresses the importance of content appropriation, i.e. the subjectivity of readers, and not the de-contextualized content itself, the authors propose a step from posters to displaying them - or advertising - in public places in the city.Analyzing the above stated sources it can be established that there was a demand for the public advertising space in Osijek in the early 20th century

  10. Reconstructing 20th Century Summer Precipitation on the South-Central Tibetan Plateau

    Conroy, J. L.; Hudson, A. M.; Overpeck, J. T.; Cole, J. E.; Liu, K.; Wang, L.

    2011-12-01

    The Tibetan Plateau has experienced significant increases in temperature over the 20th century, but trends in precipitation are less clear, as station precipitation records are sparse and satellite observations only extend back to 1979. Here we use the sediment record from Ngamring Co, a closed-basin, freshwater lake in south-central Tibet, to assess summer precipitation over the last century. Ngamring Co is located in a watershed without glaciers, so recent changes in runoff and lake level are independent of the influence of glacial ice volume. The first principal component of the Ngamring Co grain size dataset is highly correlated with median grain size and covaries significantly with local July-August precipitation from the CPC Merged Analysis of Precipitation (CMAP). From 1979 to 2007, median grain size decreases with increasing July-August precipitation and increases with decreasing July-August precipitation. There is prominent multidecadal variability in the 20th century grain size record, including a gradual decline in median grain size from 1900 to 1930, a gradual increase in median grain size from 1930 to 1990, and a rapid decline in median grain size since 1990. Median grain size values from 2000-2007 are the lowest in the 107-year record, suggesting the most abundant monsoon precipitation in the last 107 years has occurred in the last decade. Satellite images of the lake also confirm an increase in lake area since the early 1990s, but also show the greatest lake area occurred in the 1970s. Thus, although summer precipitation and lake area do covary, precipitation does not seem to control grain size by influencing lake area. We presently hypothesize that increased July-August precipitation causes enhanced erosion of the fine-grained sediment (likely paleolake sediments and loess) that blankets the slopes surrounding the lake. The ensuing runoff and deposition of this sediment into the lake then results in a decline in median grain size within the lake

  11. Trends and extremes of drought indices throughout the 20th century in the Mediterranean

    P. M. Sousa

    2011-01-01

    Full Text Available Average monthly precipitation, the original Palmer Drought Severity Index (PDSI and a recent adaptation to Europe, the Self Calibrated PDSI (scPDSI have been used here to analyse the spatial and temporal evolution of drought conditions in the Mediterranean during the 20th century. Monthly, seasonal and annual trends were computed for the period 1901–2000 and also for the first and second halves of this period. The statistical significance of trends was obtained with a modified version of the Mann-Kendall test that accounts for serial auto-correlation. The results show a clear trend towards drier conditions during the 20th century in most western and central Mediterranean regions, with the exceptions of northwestern Iberia and most of Turkey that reveal an increase of moisture availability. A Generalized Extreme Values (GEV analysis was applied to the maximum and minimum regional values of scPDSI, with results pointing towards a significant decline of absolute extreme values in central areas (Italy and Balkans and a less clear picture emerging in western (Iberia and eastern (Turkey realms.

    The inter-annual variability of the scPDSI index series is shown to be more realistic than the corresponding PDSI version, fitting better the drought episodes sequence and magnitude described in the literature for each sub-region. We assess the decadal and inter-annual variability of the scPDSI for each sub-domain and evaluate the role played by the major teleconnection patterns, and by several sea surface temperature (SST anomalies. The main driver of scPDSI in western and central Mediterranean areas is the winter North Atlantic Oscillation (NAO pattern that is also relevant during the following spring and summer seasons with anti-correlation values below −0.60. The second most important mode corresponds to the Scandinavian Pattern that is significantly associated to the scPDSI between winter and summer over central Mediterranean (correlation

  12. Santorini Volcano's 20th Century Eruptions: A Combined Petrogenetical, Volcanological, Sociological and Environmental Study

    Drymoni, Kyriaki; Magganas, Andreas; Pomonis, Panagiotis

    2014-05-01

    Santorini, the famous stratovolcano in the Aegean Sea, erupted three time periods during the 20th century (1925-1928, 1939-1941, 1950) and since then remains dormant. This study tried to combine and evaluate new and published volcanological, petrological, geochemical, environmental and sociological data of these three phases of Santorini's activity, which practically restricted to the caldera center on the Nea Kameni Islet. After field work on the formed dacite flows, pyroclastics and domes, representative rock samples and enclaves were collected and investigated for their texture, physical parameters, mineralogy and chemical composition by polarizing light microscope, scanning electron microscope (SEM-EDS), XRD, Raman spectroscopy and ICP-MS. The petrogenetic evaluation of the data obtained suggests slight but significant changes in the solid and aerial phases produced during the three explosion stages, which can be attributed to minor variations in the magmatic differentiation and magma chamber physicochemical conditions. These variations were also expressed by decrease of duration and intensity of the eruptions, as well as in their volume of ejecta and lava. Probably, the subsequent relatively long dormant period of the volcano is also related to this tension of decrease. The first compared results were collected from scientific literature, old photos as well as local and regional press and state documents from the different periods of volcanism, record the past hazard case scenarios and civil defense planning of the individual eruptions. As part of the disaster management a pilot survey, in which personal interviews with aged local islanders that were eye-witnesses of the events and elderly people or tourists that they indirectly experienced or have heard about them, was also conducted. This event-tracing, along with air pollution software models using volcanological data have shown the social impacts and the environmental consequences of the volcanic

  13. Numerical Simulation of Global Temperature Change during the 20th Century with the IAP/LASG GOALS Model

    马晓燕; 郭裕福; 石广玉; 俞永强

    2004-01-01

    The IAP/LASG GOALS coupled model is used to simulate the climate change during the 20th century using historical greenhouse gases concentrations, the mass mixing ratio of sulfate aerosols simulated by a CTM model, and reconstruction of solar variability spanning the period 1900 to 1997. Four simulations,including a control simulation and three forcing simulations, are conducted. Comparison with the observational record for the period indicates that the three forcing experiments simulate reasonable temporal and spatial distributions of the temperature change. The global warming during the 20th century is caused mainly by increasing greenhouse gas concentration especially since the late 1980s; sulfate aerosols offset a portion of the global warming and the reduction of global temperature is up to about 0.11°C over the century; additionally, the effect of solar variability is not negligible in the simulation of climate change over the 20th century.

  14. Dental health of the late 19th and early 20th century Khoesan.

    Botha, D; Steyn, M

    2015-06-01

    This paper presents the results of the dental analysis performed on a Khoesan skeletal sample representing the late 19th and early 20th century Cape Colony in southern Africa. Skeletal material from two European collections (Vienna and Paris) was selected to compile a total sample of 116 specimens. Dental pathology frequencies were calculated for caries (28.4%), antemortem tooth loss (37.9%), periapical abscesses (29.3%), periodontal disease (26.7%), calculus (44.0%) and impacted canines (4.3%). Attrition scores indicated that the group under study had an average rate of attrition compared to other southern African populations. Frequency and intensity data were compared to several other samples from both the pre-contact and contact phases by means of chi-squared analysis. The outcome of the study suggested that the group under study was most likely in a state of transition between a diet and lifestyle of hunting-and-gathering and agriculture. Results were also consistent with those of groups from a low socio-economic status. PMID:25882044

  15. High-resolution record of pyrogenic polycyclic aromatic hydrocarbon deposition during the 20th century.

    Lima, Ana Lúcia C; Eglinton, Timothy I; Reddy, Christopher M

    2003-01-01

    A high-resolution record of polycyclic aromatic hydrocarbon (PAH) deposition in Rhode Island over the past approximately 180 years was constructed using a sediment core from the anoxic Pettaquamscutt River basin. The record showed significantly more structure than has hitherto been reported and revealed four distinct maxima in PAH flux. The characteristic increase in PAH flux at the turn of the 20th century was captured in detail, leading to an initial maximum prior to the Great Depression. The overall peak in PAH flux in the 1950s was followed by a maximum that immediately preceded the 1973 Organization of Petroleum Exporting Countries (OPEC) oil embargo. During the most recent portion of the record, an abrupt increase in PAH flux between 1996 and 1999 has been found to follow a period of near constant fluxes. Because source-diagnostic ratios indicate that petrogenic inputs are minor throughout the record, these trends are interpreted in terms of past variations in the magnitude and type of combustion processes. For the most recent PAH maximum, energy consumption data suggest that diesel fuel combustion, and hence traffic of heavier vehicles, is the most probable cause for the increase in PAH flux. Systematic variations in the relative abundance of individual PAHs in conjunction with the above changes in flux are interpreted in relation to the evolution of combustion processes. Coronene, retene, and perylene are notable exceptions, exhibiting unique down-core profiles. PMID:12542290

  16. The great exodus of 1939 and other exiles of the 20th Century

    Enric Pujol

    2009-01-01

    Full Text Available In spite of being a historic constant and a characteristic phenomenon of the 20th century, the subject ‘exile’ is still little valued by contemporary historiography´. The civil war from 1936 to 1939 and the Francoist triumph provoked an exile without precedent in recent Catalonian history. This exile was decisive in the preservation of Catalan culture (persecuted by the Franco regime in Catalonia itself, as well as for the continuity of Catalan self-government, the ‘Generalitat of Catalonia’. It was also an extremely important platform for the democratic opposition to Francoism, although it lost its political weight around the nineteen sixties. At that time, though, new waves of exiles took place caused by the fight against the dictatorship, but they were in no way related to the scale of those from the civil war in the thirties. At the dictator’s death many people returned home, but the fragility of the democracy born from the political transition process brought new exiles. In order to know more in detail on such an important subject it is necessary to promote a culturally institutionalised process that makes possible its systematic study, and it is also necessary that the analysis of this phenomenon become a top priority aim of study for historiography and for all human sciences.

  17. The mid 19th and early 20th Century Pull of a Nearby Eclipse Shadow Path

    Bonifácio, Vitor

    2012-09-01

    The unique observing conditions allowed by total solar eclipses made them a highly desirable target of 19th and early 20th century astronomical expeditions, particularly after 1842. Due to the narrowness of the lunar shadow at the Earth's surface this usually implied traveling to faraway locations with all the subsequent inconveniences, in particular, high costs and complex logistics. A situation that improved as travel became faster, cheaper and more reliable. The possibility to observe an eclipse in one's own country implied no customs, no language barriers, usually shorter travelling distances and the likely support of local and central authorities. The eclipse proximity also provided a strong argument to pressure the government to support the eclipse observation. Sometimes the scientific elite would use such high profile events to rhetorically promote broader goals. In this paper we will analyse the motivation, goals, negotiating strategies and outcomes of the Portuguese eclipse expeditions made between 1860 and 1914. We will focus, in particular, on the observation of the solar eclipses of 22 December 1870 and 17 April 1912. The former allowed the start-up of astrophysical studies in the country while the movie obtained at the latter led Francisco da Costa Lobo to unexpectedly propose a polar flattening of the Moon.

  18. Molecular evolution of Zika virus during its emergence in the 20(th century.

    Oumar Faye

    Full Text Available Zika virus (ZIKV is a mosquito-borne flavivirus first isolated in Uganda in 1947. Although entomological and virologic surveillance have reported ZIKV enzootic activity in diverse countries of Africa and Asia, few human cases were reported until 2007, when a Zika fever epidemic took place in Micronesia. In the context of West Africa, the WHO Collaborating Centre for Arboviruses and Hemorrhagic Fever at Institut Pasteur of Dakar (http://www.pasteur.fr/recherche/banques/CRORA/ reports the periodic circulation of ZIKV since 1968. Despite several reports on ZIKV, the genetic relationships among viral strains from West Africa remain poorly understood. To evaluate the viral spread and its molecular epidemiology, we investigated 37 ZIKV isolates collected from 1968 to 2002 in six localities in Senegal and Côte d'Ivoire. In addition, we included strains from six other countries. Our results suggested that these two countries in West Africa experienced at least two independent introductions of ZIKV during the 20(th century, and that apparently these viral lineages were not restricted by mosquito vector species. Moreover, we present evidence that ZIKV has possibly undergone recombination in nature and that a loss of the N154 glycosylation site in the envelope protein was a possible adaptive response to the Aedes dalzieli vector.

  19. Proceedings of the 20th meeting for tandem accelerators and their associated technologies

    The 20th Meeting of Tandem Accelerators and their Associated Technologies was held from July 12 through 13, 2007 at Tokai-mura, Ibaraki-ken, under the auspices of the Nuclear Science Research Institute of Japan Atomic Energy Agency (JAEA). About one hundred and ten people participated in the meeting from thirty-three organizations; universities, research institutes and industries, which have a tandem accelerator or an electrostatic accelerator. The objective of the meeting is to contribute to research and development of accelerator technology by exchanging information on their accelerators each other. The meeting consisted of oral and poster sessions. Forty-seven presentations about present status and technical development on tandem accelerators or electrostatic accelerators and applications using these accelerators were discussed during the two days. This report summarizes the forty-five presentations including posters in the meeting. This publication is the collection of the paper presented at the title meeting. The 44 of the presented papers are indexed individually. (J.P.N.)

  20. [Pollock, Warhol, Basquiat, Haring 20th century American painters from a psychological perspective].

    Petôvári, Csaba

    2010-01-01

    Pollock, Warhol, Basquiat and Haring made an international reputation for themselves with their art foremost of the American artists of the 20th century, and became pop cultural icons for the man in the street and for the media as well. Accordingly to the habits of the consumer society their art and even themselves become product and consumer's goods. Their not mistaken, individual style - which also became their trademark - makes that possible. The connection between the four artists is that each of them had a dependent personality, their fine art activity was arguable in their period, and after all themselves and his artworks get into the increased attention of the media. These four artists embody the brand-new artist type, who steps into a star status. Besides the artworks the artist also get into the focus of interest. Through psychological aspect their artworks tell a lot about their way of life, their personality, and the social estate around them. Four of them were catalysts, they set new art trends. The influence of Basquiat and Haring stretched over to the 21st century, and keeps going in the graffiti street-art which gets into the "high art" at last, and captivates the art galleries and critics as well. PMID:20938058

  1. Numerical Simulation of the Water Cycle Change Over the 20th Century

    Bosilovich, Michael G.; Schubert, Siegfried D.

    2003-01-01

    We have used numerical models to test the impact of the change in Sea Surface Temperatures (SSTs) and carbon dioxide (CO2) concentration on the global circulation, particularly focusing on the hydrologic cycle, namely the global cycling of water and continental recycling of water. We have run four numerical simulations using mean annual SST from the early part of the 20th century (1900-1920) and the later part (1980-2000). In addition, we vary the CO2 concentrations for these periods as well. The duration of the simulations is 15 years, and the spatial resolution is 2 degrees. We use passive tracers to study the geographical sources of water. Surface evaporation from predetermined continental and oceanic regions provides the source of water for each passive tracer. In this way, we compute the percent of precipitation of each region over the globe. This can also be used to estimate precipitation recycling. In addition, we are using the passive tracers to independently compute the global cycling of water (compared to the traditional, Q/P calculation).

  2. Einstein and early 20th Century avant-garde art: points of contact?

    Martini, José X

    2007-01-01

    Art history linked some early 20th Century avant-garde visual art movements to contemporary systems of ideas in mathematics and theoretical physics. One of the proposed connections is the one that might have existed between Cubism and Relativity, or more precisely, between Picasso and Einstein. The suggested links are similarity (in a weak version) or identity (in a strong version) in matters of space, time and simultaneity. It is possible, however, that these supposed links of Einstein and avant-garde art movements were more the product of the imagination of historians and critics, than the result of connections between painters and scientists. On the one hand, the visual arts (in contrast to music, as far as we now) were of no interest to Einstein, who, moreover, did not seem inclined or knowledgeable enough to appreciate advanced forms. On the other hand, Einstein's theories fell outside the artists' ken, let alone their understanding, although there are firm clues pointing to the fact that repercussions o...

  3. René leriche and the development of 20(th) century surgery.

    Ioncioaia, Bogdan; Bud, Ioan Teodor; Muresan, Mircea

    2016-01-01

    René Leriche (1879-1955) was a 20(th) century French surgeon generally known in medicine for the syndrome that carries his name, namely the Leriche syndrome in the aorto-iliac occlusive disease. This paper is published to mark the commemoration of 60 year since Leriche's death. Although Dr. Leriche's legacy resides in the domain of vascular medicine, his research enclosed bone pathology and surgical management of pain. Having his surgical training done under professors Mathieu Jaboulay and Antonin Poncet, his friendship and association with Alexis Carrel and William Halsted have contributed to René Leriche's development as a surgeon, researcher and thinker. Following the footsteps of his mentors, he produced outstanding clinical and academic work which had earned him a good reputation among his students and colleagues. Surgeons such as Jean Kunlin, Jao Cid dos Santos, Michael DeBakey, René Fontaine and others came to study and learn from him. These future generations of surgeons would themselves bring much contribution to the understanding and treatment of vascular diseases and medicine in general. René Leriche pioneered medicine with his research and ideas. His assiduous work of teaching, research and clinical practice made his influence last to our present. PMID:27004042

  4. Modeling the 20th century Arctic Ocean/Sea ice system: Reconstruction of surface forcing

    Kauker, Frank; KöBerle, Cornelia; Gerdes, Rüdiger; Karcher, Michael

    2008-09-01

    The ability to simulate the past variability of the sea ice-ocean system is of fundamental interest for the identification of key processes and the evaluation of scenarios of future developments. To achieve this goal atmospheric surface fields are reconstructed by statistical means for the period 1900 to 1997 and applied to a coupled sea ice-ocean model of the North Atlantic/Arctic Ocean. We devised a statistical model using a redundancy analysis to reconstruct the atmospheric fields. Several sets of predictor and predictand fields are used for reconstructions on different time scales. The predictor fields are instrumental records available as gridded or station data sets of sea level pressure and surface air temperature. The predictands are surface fields from the NCAR/NCEP reanalysis. Spatial patterns are selected by maximizing predictand variance during a "learning" period. The reliability of these patterns is tested in a validation period. The ensemble of reconstructions is checked for robustness by mutual comparison and an "optimal" reconstruction is selected. Results of the simulations with the sea ice-ocean model are compared with historical sea ice extent observations for the Arctic and Nordic Seas. The results obtained with the "optimal" reconstruction are shown to be highly consistent with these historical data. An analysis of simulated trends of the "early 20th century warming" and the recent warming in the Arctic complete the manuscript.

  5. Rise and fall of hypofractionation in clinical radiotherapy in the 20th century

    The purpose of this article is to review of the use of hypofractionated radiotherapy during the last two centuries. We define hypofractionation as any treatment where the individual fraction exceeds 2.0 Gray (Gy). The number of fractions is disregarded. The struggle of the early radiotherapists, the slow acceptance of fractionation, and the battle between the German and the French schools are reviewed. The early mathematical formulae of biological effects radiation are described and commented on. The paramount contribution in radiotherapy by British scientists gave rise to a new science: radiobiology. This branch had now matured into an exact discipline, separate from, and yet utterly depending on, its 100 years old sibling: Diagnostic Radiology. The come-back and fall of hypofractionation during two centuries is described, and set in relation to the treatment philosophy of the corresponding period. Injuries are described, and the long latency period for late reactions pointed out. Some of the legal aspects of the injuries are discussed. The come-back of hypofractionation - twice declared dead and buried the 20th century - in the late 1990's is explained. The brilliant incorporation variability (α andβ) into mathematical exactness (the LQ-formula) has had, and will have a profound impact on clinical radiotherapy. (author)

  6. Late 20th Century Temperature Trends in the NARCCAP Regional Model Simulations

    Bukovsky, M. S.; Mearns, L. O.

    2010-12-01

    In this study we will analyze simulations from the North American Regional Climate Change Assessment Program (NARCCAP) in terms of their ability to reproduce the 2-m temperature trends of the late 20th century over North America. Trends will be compared to the driving reanalysis (the NCEP-DOE global reanalysis II: R2) as well as multiple observation-based datasets for 1980-2004. Available global climate model (GCM) driven NARCCAP simulations will also be examined relative to their drivers and observations from roughly 1970-1999 and compared to their reanalysis driven counterparts. We will also try to explain large discrepancies in the regional climate model (RCMs) trends. Current work indicates that some biases in trend are due to model drift. Differences in trends will be discussed in the context of bias correction and uncertainty in future climate projections. NARCCAP is producing high-resolution climate simulations over North America for the generation of regional climate change scenarios for impacts and uncertainty research. Simulations are produced by six different RCMs given conditions from 4 different global climate models for present and future conditions using the 20c3m and A2 SRES scenarios and the R2 reanalysis.

  7. Drought assessment and trends analysis from 20th century to 21st century over China

    Yang, X. L.; Ren, L. L.; Tong, R.; Liu, Y.; Cheng, X. R.; Jiang, S. H.; Yuan, F.

    2015-06-01

    Droughts are becoming the most expensive natural disasters in China and have exerted serious impacts on local economic development and ecological environment. The fifth phase of the Coupled Model Intercomparison Project (CMIP5) provides a unique opportunity to assess scientific understanding of climate variability and change over a range of historical and future period. In this study, fine-resolution multimodel climate projections over China are developed based on 7 CMIP5 climate models under RCP8.5 emissions scenarios by means of Bilinear Interpolation and Bias Correction. The results of downscaled CMIP5 models are evaluated over China by comparing the model outputs with the England Reanalysis CRU3.1 from 1951 to 2000. Accordingly, the results from the output of downscaled models are used to calculate the Standardized Precipitation Index (SPI). Time series of SPI has been used to identify drought from 20th century to 21st century over China. The results show that, most areas of China are projected to become wetter as a consequence of increasing precipitation under RCP8.5 scenarios. Detailed examination shows that the SPI show a slightly increasing trend in the future period for the most parts of China, but drought in Southwest region of China will become the norm in the future RCP8.5 scenarios.

  8. Language & authoritarianism in the 20th century: The cases of Estonia and Catalonia

    Delaney Michael Skerrett

    2010-05-01

    Full Text Available The 20th century saw the Soviet and Francoist regimes enforce their respective ideologies in Estonia and the Catalan-speaking territories in Spain. In both cases, the autochthonous language suffered under the stringent control of the mechanisms of censorship and repression. In fact, Soviet and Spanish leaders—representing both extremes of the political spectrum—tried to replace the use of the autochthonous language in many sociolinguistic domains with their own—Russian and (Castilian Spanish—as these languages embodied the ideologies and the new orders that they wished to establish. This paper compares and contrasts the diverse methods of control over language carried out in Estonia and the Catalan-speaking areas of Spain in order to demonstrate that highly centralised multilingual states—whatever their political ideology—can make use of surprisingly similar means of control, ultimately depriving local linguistic communities of the ability to use and develop their own language.DOI: http://dx.doi.org/10.5128/ERYa6.16

  9. Randomised multichannel singular spectrum analysis of the 20th century climate data

    Teija Seitola

    2015-12-01

    Full Text Available In this article, we introduce a new algorithm called randomised multichannel singular spectrum analysis (RMSSA, which is a generalisation of the traditional multichannel singular spectrum analysis (MSSA into problems of arbitrarily large dimension. RMSSA consists of (1 a dimension reduction of the original data via random projections, (2 the standard MSSA step and (3 a recovery of the MSSA eigenmodes from the reduced space back to the original space. The RMSSA algorithm is presented in detail and additionally we show how to integrate it with a significance test based on a red noise null-hypothesis by Monte-Carlo simulation. Finally, RMSSA is applied to decompose the 20th century global monthly mean near-surface temperature variability into its low-frequency components. The decomposition of a reanalysis data set and two climate model simulations reveals, for instance, that the 2–6 yr variability centred in the Pacific Ocean is captured by all the data sets with some differences in statistical significance and spatial patterns.

  10. The 20th-century development and expansion of Louisiana shelf hypoxia, Gulf of Mexico

    Osterman, L.E.; Poore, R.Z.; Swarzenski, P.W.; Senn, D.B.; DiMarco, S.F.

    2009-01-01

    Since systematic measurements of Louisiana continental-shelf waters were initiated in 1985, hypoxia (oxygen content hypoxia zone. We constructed a network of 13 PEB records with excess 210Pb-derived chronologies to establish the development of low-oxygen and hypoxic conditions over a large portion of the modern dead zone for the last 100 years. The PEB index record indicates that areas of low-oxygen bottom water began to appear in the early 1910s in isolated hotspots near the Mississippi Delta and rapidly expanded across the entire Louisiana shelf beginning in the 1950s. Since ???1950, the percentage of PEB species has steadily increased over a large portion of the modern dead zone. By 1960, subsurface low-oxygen conditions were occurring seasonally over a large part of the geographic area now known as the dead zone. The long-term trends in the PEB index are consistent with the 20th-century observational and proxy data for low oxygen and hypoxia. ?? 2009 US Government.

  11. Development of Foreign Relations of Mongolia in the 1st half of the 20th century : Mongolia's struggle for independence

    Buyanlham Tumurjav; ブヤンルハム トムルジャブ

    2007-01-01

    This thesis is a historical analysis of the development of Foreign Relations of the Mongolian People’s Republic (Mongolia) in the 1st half of the 20th century. The main focus of the research is the struggle of this small nation, sandwiched between two giant neighbors, for its independence, which had been at stake several times in early 20th century. Prior to discussing independence movements in Mongolia, the research analyzed how Mongolia became a subject of another state, the Qing dynasty an...

  12. EDITORIAL: 65th Birthday of Professor Hauptmann 65th Birthday of Professor Hauptmann

    Lucklum, Ralf

    2009-12-01

    The papers in this special feature have been contributed by scientific partners in international research projects and from former PhD students of the Editor-in-Chief of this journal, Professor Dr Peter Hauptmann. The motivation for this feature is the occasion of Peter Hauptmann's 65th birthday on 24 July 2009 and his retirement from his chair at the Otto-von-Guericke-University, Magdeburg, Germany this autumn. Peter graduated in Physics at the Technical University Dresden and received his PhD from the Technical University Leuna-Merseburg in 1973. He habilitated in 1979. With his appointment at the Faculty of Electrical Engineering and Information Technology in 1985 the Chair of Measurement Science extended its profile to the fast growing area of sensors. Peter was one of the very early developers of ultrasonic sensor systems for process monitoring and quality assurance. The working style here was characteristic of all his future activities. He combined his background in theory and experiment on ultrasonic wave propagation and its application to material science with the advantages of rapidly developing capabilities in microelectronics and data processing. The results have meanwhile found their way into products that are now on the market worldwide. Germany's reunification opened the door to the international sensor community and the most challenging sensor research areas. Peter Hauptmann very soon became a well respected colleague and was consequently appointed as member of the Technical Program Committee of the most important sensor conferences, elected member and head of expert groups of research associations and funding organizations, and of course reviewer of many scientific journals. Nowadays Peter Hauptmann can rightly be called one of the key players in the area of sensors. Professor Hauptmann's research interests combine fundamental aspects of the sensor transduction scheme with application issues up to the use of the sensor system in the industrial world

  13. Interview with Tim Berners-Lee, inventor of the Web, for the 20th anniversary of the World Wide Web

    CERN Audiovisual Service

    2009-01-01

    What was your intention when you wrote the first proposal that led to the development of the web 20 years ago? Do you think the Web was born at CERN by chance?Did you realise there was a potential beyond its original scientific goal? Were you surprised by the rapid success and growth?In your opinion, what are the positive and negative aspects of the web today?How do you expect the web to evolve?What do you think are the greatest threats to the developments of the web?

  14. Lens and cataract research of the 20th century: a review of results, errors and misunderstandings.

    Hockwin, Otto; Kojima, Masami; Müller-Breitenkamp, Ursula; Wegener, Alfred

    2002-01-01

    Lens and cataract research from a clinical, biophysical, biological and mainly biochemical point of view has a long tradition. Already since the beginning of the 20th century research relating to the chemical composition and metabolism of the lens was conducted. With these analyses an attempt was made to understand the existence and maintenance of lens transparency and the mechanisms leading to lens opacities. Around the middle of the century the stationary analyses measuring the content of certain substances in the lens were more and more replaced by the search for dynamic metabolic processes responsible for lens growth, maintenance of transparency and possibly active participation in lens function (such as accommodation). Also the disturbances as a result of ageing or the formation of lens opacities have been investigated and resulted partially in the elucidation of reaction chains, leading from a trigger to the formation of a cataract. Lens biochemistry is no longer a closed book to us, but there are still many question marks. Why were we not able to solve more problems around lens and cataract? The research effort with a remarkable financial input and a great number of scientists worldwide during the second half of the century does not correspond to the results obtained. There must be something wrong with our strategy, our interpretation of the results or even both. We would like to stress some points which might be regarded as errors or misunderstandings in the lens research community, thus preventing a better outcome of the enormous investment of work and money. A great disadvantage is the missing cooperation between clinicians and epidemiologists on one hand and basic lens researchers on the other. Especially the ignorance of basic researchers regarding the clinical problems of the lens and of cataracts might be to blame for several 'errors and misunderstandings'. It is not even so long ago since the slitlamp microscope examination of animals belonged to the

  15. Meteorological Effects of Land Cover Changes in Hungary during the 20th Century

    Drüszler, Á.; Vig, P.; Csirmaz, K.

    2012-04-01

    Geological, paleontological and geomorphologic studies show that the Earth's climate has always been changing since it came into existence. The climate change itself is self-evident. Therefore the far more serious question is how much does mankind strengthen or weaken these changes beyond the natural fluctuation and changes of climate. The aim of the present study was to restore the historical land cover changes and to simulate the meteorological consequences of these changes. Two different land cover maps for Hungary were created in vector data format using GIS technology. The land cover map for 1900 was reconstructed based on statistical data and two different historical maps: the derived map of the 3rd Military Mapping Survey of the Austro-Hungarian Empire and the Synoptic Forestry Map of the Kingdom of Hungary. The land cover map for 2000 was derived from the CORINE land cover database. Significant land cover changes were found in Hungary during the 20th century according to the examinations of these maps and statistical databases. The MM5 non-hydrostatic dynamic model was used to further evaluate the meteorological effects of these changes. The lower boundary conditions for this mesoscale model were generated for two selected time periods (for 1900 and 2000) based on the reconstructed maps. The dynamic model has been run with the same detailed meteorological conditions of selected days from 2006 and 2007, but with modified lower boundary conditions. The set of the 26 selected initial conditions represents the whole set of the macrosynoptic situations for Hungary. In this way, 2×26 "forecasts" were made with 48 hours of integration. The effects of land cover changes under different weather situations were further weighted by the long-term (1961-1990) mean frequency of the corresponding macrosynoptic types, to assume the climatic effects from these stratified averages. The detailed evaluation of the model results were made for three different meteorological

  16. Ochres and earths: Matrix and chromophores characterization of 19th and 20th century artist materials

    Montagner, Cristina; Sanches, Diogo; Pedroso, Joana; Melo, Maria João; Vilarigues, Márcia

    2013-02-01

    The present paper describes the main results obtained from the characterization of a wide range of natural and synthetic ochre samples used in Portugal from the 19th to the 20th century, including powder and oil painting samples. The powder ochre samples came from several commercial distributors and from the collection of Joaquim Rodrigo (1912-1997), a leading Portuguese artist, particularly active during the sixties and seventies. The micro-samples of oil painting tubes came from the Museu Nacional de Arte Contemporânea-Museu do Chiado (National Museum of Contemporary Art-Chiado Museum) in Lisbon and were used by Columbano Bordalo Pinheiro (1857-1929), one of the most prominent naturalist Portuguese painters. These tubes were produced by the main 19th century colourmen: Winsor & Newton, Morin et Janet, Maison Merlin, and Lefranc. The samples have been studied using μ-Fourier Transform Infrared Spectroscopy (μ-FTIR), Raman microscopy, μ-Energy Dispersive X-ray fluorescence (μ-EDXRF), and X-ray diffraction (XRD). The analyzed ochres were found to be a mixture of several components: iron oxides and hydroxides in matrixes with kaolinite, gypsum and chalk. The results obtained allowed to identify and characterize the ochres according to their matrix and chromophores. The main chromophores where identified by Raman microscopy as being hematite, goethite and magnetite. The infrared analysis of the ochre samples allowed to divide them into groups, according to the composition of the matrix. It was possible to separate ochres containing kaolinite matrix and/or sulfate matrix from ochres where only iron oxides and/or hydroxides were detected. μ-EDXRF and Raman were the best techniques to identify umber, since the presence of elements such as manganese is characteristic of these pigments. μ-EDXRF also revealed the presence of significant amounts of arsenic in all Sienna tube paints.

  17. Conceptual Revolution of the 20th Century Leading to One Grand Unified Concept -- The Quantum Vacuum

    Sreekantan, B. V.

    2014-07-01

    Concepts and the relations between concepts are the basis for all our scientific understanding and explanation of the wide variety of constituents and phenomena in nature. Some of the fundamental concepts like space, time, matter, radiation, causality, etc. had remained unchanged for almost four hundred years from the time of the dawn of science. However all these underwent a drastic transformation in the 20th century because of two reasons. One, in the light of certain experimental findings two radical theories namely theory of relativity and theory of quantum mechanics replaced the classical theory that had dominated since Newton's time. Secondly, the science-technology spiral resulted in the discovery of very many new features of the universe both on the micro scale and on the mega scale. There was an exponential increase in our knowledge. These new facts could not be fitted into the old concepts. Apart from drastic revision, many new concepts had to be brought in. Despite all this, one very encouraging trend has been to discern a holistic synthesis and unification of the different concepts -- an endeavor that has been helped by experiments over a wide scale of energy and distances and most importantly from theoretical insights triggered by mathematical underpinnings. These developments in physics and astrophysics are pointing to one grand concept, namely, the "quantum vacuum" endowed with certain special properties, as the substratum from which all the constituents of the universe as well as the processes of the universe emerge, including the creation of the universe itself. This is the view, at least of some of the scientists. In this brief article the essence of these approaches toward unification is highlighted. Maybe life sciences can take a clue from these developments in physical sciences.

  18. Reconciling past changes in Earth's rotation with 20th century global sea-level rise: Resolving Munk's enigma.

    Mitrovica, Jerry X; Hay, Carling C; Morrow, Eric; Kopp, Robert E; Dumberry, Mathieu; Stanley, Sabine

    2015-12-01

    In 2002, Munk defined an important enigma of 20th century global mean sea-level (GMSL) rise that has yet to be resolved. First, he listed three canonical observations related to Earth's rotation [(i) the slowing of Earth's rotation rate over the last three millennia inferred from ancient eclipse observations, and changes in the (ii) amplitude and (iii) orientation of Earth's rotation vector over the last century estimated from geodetic and astronomic measurements] and argued that they could all be fit by a model of ongoing glacial isostatic adjustment (GIA) associated with the last ice age. Second, he demonstrated that prevailing estimates of the 20th century GMSL rise (~1.5 to 2.0 mm/year), after correction for the maximum signal from ocean thermal expansion, implied mass flux from ice sheets and glaciers at a level that would grossly misfit the residual GIA-corrected observations of Earth's rotation. We demonstrate that the combination of lower estimates of the 20th century GMSL rise (up to 1990) improved modeling of the GIA process and that the correction of the eclipse record for a signal due to angular momentum exchange between the fluid outer core and the mantle reconciles all three Earth rotation observations. This resolution adds confidence to recent estimates of individual contributions to 20th century sea-level change and to projections of GMSL rise to the end of the 21st century based on them. PMID:26824058

  19. 20th International Symposium on Shiftwork and Working Time: Biological Mechanisms, Recovery, and Risk Management in the 24-h Society

    Kecklund, L.G.; Milia, L. Di; Axelsson, J.; Lowden, A.; Äkerstedt, T.

    2012-01-01

    This dedicated issue of Chronobiology International is devoted to the selected proceedings of the 20th International Symposium on Shift Work and Working Time held in Stockholm, Sweden, 28 June to 1 July 2011. It constitutes the fifth such issue of the journal since 2004 dedicated to the selected pro

  20. Sexism in Advertising Industry Through the Study of Auto Magazine Advertisements in Late 20th Century Century

    冯冉

    2015-01-01

    Gender discrimination against female in advertising industry appears to be ubiquitous especially in late 20th century.I intend to demonstrate that auto ads are under the influence of common gender stereotype which discriminates women as an inferior role in the society.

  1. The role of society in juvenile delinquency prevention in Russian Empire in late 19th - early 20th c.

    E Belyankova

    2010-01-01

    The role of community activism in prevention of juvenile delinquency is very significant. It is demonstrated, in particular, by archive materials from late 19th - early 20th. The article describes the principal directions of activity of private citizens working with juvenile delinquents, analyzes the work of congresses of representatives of correctional education institutions, and considers the experience of the Rukavishnikov asylum in Moscow.

  2. Socialization into a Civilization: The Dewey-Kaplan Synthesis in American Jewish Schooling in the Early 20th Century

    Jacobs, Benjamin M.

    2009-01-01

    This historical study focuses on how John Dewey's theory of education as socialization and Mordecai Kaplan's theory of Judaism as a civilization together served as an ideological base and pedagogical framework for the creation of "progressive," "reconstructed" American Jewish school programs in the early 20th century (1910s-1930s). In the main,…

  3. Recepcion of Rousseau in formation initial of primary school teachers (Spain, 20th century

    Antonio Viñao, España.

    2013-08-01

    Full Text Available Este artigo aborda a imagem e idéias de e sobre Rousseau transmitidas na Espanha ao magistério primário durante o século 20, através dos manuais de História da Educação e outras fontes similares. Após analisar as fontes utilizadas e seus destinatários, se expõe a imagem e a idéia de Rousseau como pai da pedagogia moderna, predominante nos escritos pedagógicos da época para, em seguida, e a modo de contraste, examinar o lugar e o tratamento dado à Rousseau nos mencionados manuais. Esse exame se divide em duas épocas: a anterior à guerra civil e a posterior, com o fim de mostrar o predomínio, sobre tudo durante o franquismo, de uma visão católica, conservadora, moralizante e crítica do genebriano. Palavras-chave: Rousseau, manuais escolares, educação primária, formação do magistério primário, Espanha (século 20.   Recepcion of Rousseau in formation initial of primary school teachers (Spain, 20th century Abstract This article deals with Rousseau’s images and ideas present in the school books of History of Education, and other similar sources, used in the training of primary school teachers in Spain during the 20th century. After analyzing the sources used and their addresses, the predominance of Rousseau’s ideas and image as the father of modern pedagogy in the pedagogical literature of this period is explained. Immediately after, by way of contrast, Rousseau’s place and the way of considering him in the above mentioned school books are examined. The above analysis is divided into two periods, before and after the civil war, in order to show the predominance of the catholic-conservative moralizing and critical approach, particularly during francoism. Key-words: Rousseau, school books, primary education, teacher’s training, Spain (20th century.   La recepción de Rousseau en la formación inicial del magisterio primario (España, siglo 20 Resumen Este artículo versa sobre la imagen e ideas de y sobre Rousseau

  4. Coordinating world scientific pulsing, escalating China's innovative waving——Contact: Nobel Prize Laureates

    2006-01-01

    @@ Top-level forum on - "Scientific Frontier and China's Opportunities in the 21st Century" was held by NSFC in Beijing to commemorate the 20th birthday of NSFC. The forum was located on the topics of the scientific frontiers in the 21st century science, science foundation to promote fundamental research, and China's opportunities. Their in-depth discussions will influence future fundamental research in China and strengthen Chinese multi-lateral research ties.

  5. A generalization of the Birthday problem and the chromatic polynomial

    Fadnavis, Sukhada

    2011-01-01

    The birthday paradox states that there is at least half a chance that some two out of twenty-three randomly chosen people will share the same birth date. The calculation for this problem assumes that all birth dates are equally likely. We consider the following two modifications of this question. What if the distribution of birth dates is non-uniform and possibly even unknown? Further, what if we focus on birthdays shared by two friends rather than any two people? In this paper we present some of our results and conjectures in this generalized setting. We will also show how these results are related to the Stanley-Stembridge poset chain chromatic conjecture and the `shameful conjecture', two famous conjectures in combinatorics.

  6. Commemoration Meeting on 20th Anniversary of CAIM and CJIM and 2001 CAIM Working Conference Held in Xi’an

    2001-01-01

    @@On Oct. 20-22, 2001, a commemorating meeting for the 20th anniversary on the founding of Chinese Association of Integration of Traditional and Western Medicine (CAIM) and the start publication of Chinese Journal of Integrated Traditional and Western Medicine (CJIM) was held in Xi'’an, 436 participants from various provinces and districts, as well as Taiwan province attended the meeting. Rapid development and outstanding achievements were summarized by Prof. Wei BEI-hai, Vice-President of CAIM. Since 1981, CAIM has held 12 international and 380 national academic conferences, 62,000 member-times participated the meetings, the CAIM member increased from 13,000 to 52,000 in 20 years. There are 57 integrated hospitals, over 30 integrated institutes, 10 integrated journals, 35 specialty committees nationwide. Some well-known scholars delivered special lectures, such as Prof. XU Xiao-jie of Peking University (“Chemistry and Chinese Medicine”), Prof. HOU Can from Sun Yat-sen University of Medical Sciences (“Unified Medicine of Post-Gene Era”), Prof. Yang Sze Piao of Taiwan Association of Integrated Medicine (“Education of New Generation Chinese Medical Practitioner of Taiwan”) and other 5 scholars'’ lectures. Deputy Director of Editorial Board CHEN Dong-yan reported that CJIM ( Chinese edition) has published 21 volumes, particularly the citation frequency listed 1st among 2 804 scientific journals in China 1999, indicating the quality of this journal is high. Prof. WANG Wen-jian of Shanghai has been elected as Vice President of CAIM, and Prof. ZHAO Jian-xiong elected as member of director board of CAIM. Prof. SHE Jin, on behalf of State Administration of TCM (SATCM), delivered a speech entitled “4 Famous Veteran TCM Practitioners in Beijing and Integrated Medicine” to congratulate the convening of the meeting. Academician of Chinese Academy of Sciences, President of CAIM Prof. CHEN Ke-ji chaired the meeting, he said, “Past 20 years was the

  7. Careers of men and women in the 19th and 20th centuries

    Schulz, W.

    2013-01-01

    This thesis studies the process of status attainment during the careers of men and women in the nineteenth and early twentieth centuries and the influence of modernization processes on that process of status attainment. During the decades following World War II, the Western world saw an increasing c

  8. Variation in surface air temperature of China during the 20th century

    Soon, Willie; Dutta, Koushik; Legates, David R.; Velasco, Victor; Zhang, Weijia

    2011-10-01

    The 20th century surface air temperature (SAT) records of China from various sources are analyzed using data which include the recently released Twentieth Century Reanalysis Project dataset. Two key features of the Chinese records are confirmed: (1) significant 1920s and 1940s warming in the temperature records, and (2) evidence for a persistent multidecadal modulation of the Chinese surface temperature records in co-variations with both incoming solar radiation at the top of the atmosphere as well as the modulated solar radiation reaching ground surface. New evidence is presented for this Sun-climate link for the instrumental record from 1880 to 2002. Additionally, two non-local physical aspects of solar radiation-induced modulation of the Chinese SAT record are documented and discussed.Teleconnections that provide a persistent and systematic modulation of the temperature response of the Tibetan Plateau and/or the tropospheric air column above the Eurasian continent (e.g., 30°N-70°N; 0°-120°E) are described. These teleconnections may originate from the solar irradiance-Arctic-North Atlantic overturning circulation mechanism proposed by Soon (2009). Also considered is the modulation of large-scale land-sea thermal contrasts both in terms of meridional and zonal gradients between the subtropical western Pacific and mid-latitude North Pacific and the continental landmass of China. The Circum-global teleconnection (CGT) pattern of summer circulation of Ding and Wang (2005) provides a physical framework for study of the Sun-climate connection over East Asia. Our results highlight the importance of solar radiation reaching the ground and the concomitant importance of changes in atmospheric transparency or cloudiness or both in motivating a true physical explanation of any Sun-climate connection. We conclude that ground surface solar radiation is an important modulating factor for Chinese SAT changes on multidecadal to centennial timescales. Therefore, a

  9. Evaluation for sustainable agriculture water use from River, Reservoirs and Groundwater in the 20th century

    Yoshikawa, S.; Yamada, H.; Hanasaki, N.; Kanae, S.

    2011-12-01

    High water stress due to economic growth and climate change (ex. global warming) will be falling into 2 billion people to 4 billion people in the future. Agricultural water use accounting for about 70% of global water consumption might continue to increase due to production of foods and biofuels occurred by population growth in the future. In particular, water demand, food and biofuel production have an inextricable link. It is very important to evaluate these relationship for sustainable water use from past to the future. In this study, we focused on the objective to assess the impact of water withdrawal from various sources (stream flow, medium-sized reservoirs and nonrenewable nonlocal blue water) in the 20th century by considering irrigation area and climate change. Irrigation water withdrawal is the most important water use sector accounting for about 90% of total water withdrawal. First, we make the global spatial database of equipped irrigation area change and medium-sized reservoirs capacity. Then, water withdrawal from each sources for 50 years from 1950 to 2000 were simulated in global-scale at a resolution of 1.0 degree x 1.0 degree using an integrated global water resources model (hereafter, the H08 model). The H08 model can simulate both natural or anthropogenic water flow and anthropogenic water withdrawals. For comparison with our results, distribution of agricultural, industrial and domestic water withdrawals from 1950 to 2000 were estimated by distributing the country-based withdrawal data from AQUASTAT with irrigation area, urban population and total population, respectively. Groundwater withdrawal was then estimated by distributing the country-based withdrawal data based on statistical data from WRI, IGRAC and AQUASTAT with the total water withdrawal. As a result, agricultural water withdrawal change from nonrenewable nonlocal blue water during the past 50 years agreed well with the observed groundwater abstraction based on statistical data. In

  10. Disastrous floods and landslides in Portugal in the 20th century

    Quaresma, Ivânia; Zêzere, José Luis

    2010-05-01

    The record and analysis of statistical information on disaster occurrence, impacts and losses have been made worldwide in recent years. The development of natural disasters databases is crucial for risk management purposes, because it allows improving systems of indicators on disaster risk and vulnerability at national and sub-national scales. During the last century, Portugal was affected by several destructive natural disasters, namely of hydrologic (floods) and geomorphologic (landslides) origin. However, only recently risk prevention and management was assumed to be a national priority by the Portuguese Government. The basic information on past floods and landslides that occurred in Portugal is disperse and incomplete, and this is a shortcoming for the implementation of effective disaster mitigation measures, particularly when it is expectable an increase of frequency, magnitude, dimension and complexity of the hydro-geomorphologic phenomena resulting from climate change. In this work we present a preliminary assessment of hydro-geomorphologic disasters occurred in Portugal during the 20th century, based on the systematic survey of daily national newspapers. We included into a database those floods and landslides that produced, alternatively, dead people, injured people, missing people, evacuated and homeless. A total of 937 hydro-geomorphologic events were registered. In addition to physical and material damages, these events produced economic losses amounting to millions Euros. Our attention will focus on the geographic distribution and the temporal dimension of disastrous floods and landslides occurred in Portugal, and the temporal trends of hydro-geomorphologic disasters will be presented. The preliminary results shown that disastrous floods and landslides have been more frequent on the most populated regions of Portugal: the metropolitan areas of Lisbon and Oporto. In addition, data shows that disastrous hydrologic and geomorphologic phenomena were more

  11. Rumours about the Po Valley earthquakes of 20th and 29th May 2012

    La Longa, Federica; Crescimbene, Massimo; Camassi, Romano; Nostro, Concetta

    2013-04-01

    The history of rumours is as old as human history. Even in remote antiquity, rumours, gossip and hoax were always in circulation - in good or bad faith - to influence human affairs. Today with the development of mass media, rise of the internet and social networks, rumours are ubiquitous. The earthquakes, because of their characteristics of strong emotional impact and unpredictability, are among the natural events that more cause the birth and the spread of rumours. For this reason earthquakes that occurred in the Po valley the 20th and 29th May 2012 generated and still continue to generate a wide variety of rumours regarding issues related to the earthquake, its effects, the possible causes, future predictions. For this reason, as occurred during the L'Aquila earthquake sequence in 2009, following the events of May 2012 in Emilia Romagna was created a complex initiative training and information that at various stages between May and September 2012, involved population, partly present in the camp, and then the school staff of the municipalities affected by the earthquake. This experience has been organized and managed by the Department of Civil Protection (DPC), the National Institute of Geophysics and Volcanology (INGV), the Emilia Romagna region in collaboration with the Network of University Laboratories for Earthquake Engineering (RELUIS), the Health Service Emilia Romagna Regional and voluntary organizations of civil protection in the area. Within this initiative, in the period June-September 2012 were collected and catalogued over 240 rumours. In this work rumours of the Po Valley are studied in their specific characteristics and strategies and methods to fight them are also discussed. This work of collection and discussion of the rumours was particularly important to promote good communication strategies and to fight the spreading of the rumours. Only in this way it was possible to create a full intervention able to supporting both the local institutions and

  12. MINING ENTREPRENEURS IN CROATIA FROM THE MID-19TH TO THE MID-20TH CENTURY

    Berislav Šebečić

    1996-12-01

    Full Text Available The masters, or owners, of mining rights for the exploration of ores were prospectors and free or independent prospectors. Concession books and registers were kept about the proprietors of ore fields or mines. In them was entered, among other things, which ore was planned to be exploited. The possessor of a licence, permits for exploration and exploitation of ores, paid a certain fee every year. He could also sell his mining righis. in the shape of permits, partially or, more frequently, totally, as was recorded in the books. If he did not pay taxes, he could lose all his rights, which were then deleted, or crossed out of the mining books. Those who possessed mining permits had to solve the questions of compensation to the owners of the lands where they intended to do detailed explorations, and to exploit the ore, even to the extent of leasing or buying the land. The mining activity in Croatia between the mid-19th and mid-20th centuries is richly documented in the (Imperial and Royal mining captaincies in Zagreb, Zadar and Split. The basic mining law was the General Austrian Mining Law of 1854, with its amendments of 1911 (Legal Article VI about mineral oil substances and natural gases. In Croatia, mining enterpreneurs were individuals or companies (including the slate with the proviso that at the beginning there were more foreigners. However, Croatian traders, industrialists, magnates, officials, bankers, various companies, engineers, artists, retired persons, peasants, officers and others soon became involved in mining. Among the entrepreneurs there were various noblemen. It has been ascertained in this research that in individual periods between 1855 and 1945 there was a dominance of individuals (mainly 81%-85% while today (1990-1995 it is quite the opposite (86% are companies, because this is the end of the long term control of the socially owned companies. Thes same situation obtains today with respect to exploitation licenses, where

  13. Final Scientific Report for "The Interhemispheric Pattern in 20th Century and Future Abrupt Change in Regional Tropical Rainfall"

    Chiang, John C. H. [University of California, Berkeley, CA (United States); Wehner, Michael F. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2012-10-29

    This is the final scientific report for grant DOE-FG02-08ER64588, "The Interhemispheric Pattern in 20th Century and Future Abrupt Change in Regional Tropical Rainfall."The project investigates the role of the interhemispheric pattern in surface temperature – i.e. the contrast between the northern and southern temperature changes – in driving rapid changes to tropical rainfall changes over the 20th century and future climates. Previous observational and modeling studies have shown that the tropical rainband – the Intertropical Convergence Zone (ITCZ) over marine regions, and the summer monsoonal rainfall over land – are sensitive to the interhemispheric thermal contrast; but that the link between the two has not been applied to interpreting long-term tropical rainfall changes over the 20th century and future.The specific goals of the project were to i) develop dynamical mechanisms to explain the link between the interhemispheric pattern to abrupt changes of West African and Asian monsoonal rainfall; ii) Undertake a formal detection and attribution study on the interhemispheric pattern in 20th century climate; and iii) assess the likelihood of changes to this pattern in the future. In line with these goals, our project has produced the following significant results: 1.We have developed a case that suggests that the well-known abrupt weakening of the West African monsoon in the late 1960s was part of a wider co-ordinated weakening of the West African and Asian monsoons, and driven from an abrupt cooling in the high latitude North Atlantic sea surface temperature at the same time. Our modeling work suggests that the high-latitude North Atlantic cooling is effective in driving monsoonal weakening, through driving a cooling of the Northern hemisphere that is amplified by positive radiative feedbacks. 2.We have shown that anthropogenic sulfate aerosols may have partially contributed to driving a progressively southward displacement of the Atlantic Intertropical

  14. Underground fieldwork – A cultural and social history of cave cartography and surveying instruments in the 19th and at the beginning of the 20th century

    Johannes Mattes

    2015-09-01

    Full Text Available At the turn of the 20th century, the practical examination of caves went through a radical change. Governmental organizations and private clubs were founded in an attempt to establish speleology as an independent academic subject. In contrast to earlier cave visitors, travelers began entering underground areas and attributing the names of “explorers” or “researchers” to themselves. Fieldwork—especially cave surveying and cartography—became common practice in speleology and such work provided important clues on speleogenesis, which was a controversial issue in the first half of the 20th century. Due to the fact that speleologists began separating themselves from ordinary cave visitors and tourists, tools and instruments for cave exploration and mapping, such as carbide lamps, ropes, compasses, clinometers, and drawing boards, became the emblems of speleology. Through historical discourse analysis, this paper examines whether this change in the status and practice of underground fieldwork had an effect on the self-perception of speleology and led to new forms of social cooperation and control between speleologists. Further questions address the manner in which the usage of new surveying instruments and the relevance of cave mapping modified the scientific research parameters and the cultural perceptions of the subterranean world. As a contribution to speleo-history, this approach opens a new perspective on the social and cultural dimensions of speleological fieldwork as well as the historical, scientific, and political dynamics in which they were involved. Sources for this research comprised historical scientific papers on cave mapping, textbooks, and archive materials from the Austrian National Library, the Natural History Museum in Vienna, and the Austrian Speleological Association.

  15. Geochemical response of a closed-lake basin to 20th century recurring droughts/wet intervals in the subtropical Pampean Plains of South America

    Daniel ARIZTEGUI

    2004-02-01

    Full Text Available Laguna Mar Chiquita is a highly variable closed saline lake located in the Pampean Plains of central Argentina. Presently is the largest saline lake in South America (∼ 6,000 km2 and also one of the largest in the world. During the 20th century the hydrological balance of the region was characterized by contrasting scenarios. Well-defined wet or dry climatic phases had ruled the lake level fluctuations and the rivers discharge, mainly controlling the geochemical composition of sediments. Sediments accumulated during positive hydrological balances (i.e., high lake level are mainly composed of allogenic mineral due to higher riverine inputs into the lake. This fluvial-dominated lake phases are recorded as sediments enriched in Al2O3, SiO2, K2O, Fe2O3 and TiO2 and in trace elements such as Co, Cr, Cs, Rb, Sc, Hf, Ta, Th as well as rare earth elements (REE. Sediments accumulated during dry phases (i.e., low lake levels and high salinity are evaporite mineral-rich with elevated concentrations of CaO, MnO, MgO, and P2O5. High contents of As and U are probably due to a co-precitation during high evaporative phases. The calibration of the sediment chemical composition of Laguna Mar Chiquita to well-defined water-level fluctuations of the 20th century shows that elemental geochemistry can be a useful proxy to study former lake-water fluctuations. It may further provide a comparative model to evaluate past environmental conditions in other saline lacustrine basins.

  16. Wars, Redistribution and Civilian Federal Expenditures in the US over the 20th Century

    Beetsma, R.M.W.J.; Cukierman, A.; Giuliodori, M.

    2005-01-01

    We provide empirical evidence on two, major war-related, regularities of U.S. fiscal policy. First, while during and around World War I there is a positive correlation between defense spending and civil non-defense spending, this correlation becomes negative during World War II. This may be explained by a combination of complementarities between defense and civilian spending that decrease with the size of government in conjunction with marginal tax distortions that increase with government¿s ...

  17. Norm of Exploitation of Miners in Siberia in the Late 19th – Early 20th Centuries

    Vasiliy P. Zinov'ev

    2015-06-01

    Full Text Available The article focuses on the question of the distribution of added value in the mining industry in Siberia in the late 19th – early 20th centuries. Relying on the analysis of financial reports from Siberian goldmines and coalmines, the author reveals the correlation between the means spent on workforce and the means spent on income and the companies’ non-production expenses. The calculated norm of added value – the most precise reflection of the measure of wage labour exploitation – turned out to be higher for Siberian mine workers in the late 19th – early 20th centuries than for workers in the European Russia and demonstrated the tendency to further growth. The author believes it to be a consequence of the modernization of production and the exploitation of the richest and most easily accessible Siberian deposits.

  18. Ecosystem evolution of seal colony and the influencing factors in the 20th century on Fildes Peninsula, West Antarctica

    Jing Huang; Liguang Sun; Xinming Wang; Yuhong Wang; Tao Huang

    2011-01-01

    As the topmost predator in Antarctica,the seal is a unique indicator of Antarctic environment and climate changes.In this study,we collected a sediment core from the Fildes Peninsula of West Antarctica,and used cholesterol,cholestanol,epicoprostanol,coprostanol,and seal hair numbers as the proxy indicators of seal population size and phytol as of general vegetation,and we reconstructed the 20th century history of variation of the seal population and vegetation abundance on this island.The sealing industry in the early 20th century caused the dramatic decline of seal population,and the ban of seal hunting since the 1960s led to its recovery of seal population.The seal population during the past century was primarily controlled by human activities and krill density.The reconstructed relation between seal population and vegetation abundance may offer new insights into Antarctic environment and ecology.

  19. ANTHROPOLOGICAL PROBLEMS IN THE PHILOSOPHICAL WORKS OF RUSSIAN SPIRITUAL ACADEMIES’ TEACHERS OF THE EARLY 20TH CENTURY

    M. A. Ershova

    2014-01-01

    Full Text Available The paper deals with the analysis of philosophical and theological creativity of Russian theological academies’ teachers of the early 20th century. The aim of this study is to identify the impact of methodological foundations’ changes of philosophical-theological quest on the teachers of Russian theological academies and the educational process itself in theological schools. Methods. The author focuses on the content of training courses delivered in the theological academies in the first two decades of the 20th century; problem statement peculiarities; aspect and priority choice in the fundamental researches conducted by the teachers of these schools. The applied methods include the comparative method, analysis, synthesis, method of abstraction, other philosophical and scientific methods. Results. The author comes to the conclusion that the changes of methodological installations in scientific research representatives of spiritual and academic theism beginning of the 20th century can be compared with similar studies of the nineteenth century. It is mentioned that reorientation of a number of prominent representatives of spiritual and academic theism from scholastic methods, speculative psychology and metaphysics towards Patristics, asceticism and personal experiences allows us to propose this movement as West-European Philosophy searches of the same period. Thus, V. I. Nesmelov sees the basis of any religious teachings in the experience of human cognition. M. M. Tareev draws up his own moral theology reading course based on the personal experience living the Gospel Book. Archimandrite Sergious (Stragorodsky interprets the topic of finding salvation not against the background of the changes in God, but from the standpoint of the changes that occur in humanity. Bishop Theodore (Pozdeevsky, Archbishop Hilarion (Troitsky and Bishop Barnabas (Belyaev make known scholasticism as epistemological malice characterizing the specifics of theological

  20. [Occult medicine in the 20th century: pharmacotherapy by Demeter Georgievitz-Weitzer, known as Surya (1873 - 1949)].

    Helmstädter, Axel

    2011-01-01

    Demeter Georgievitz-Weitzer (1873-1949), called "Surya", Sanskrit for "sun", was an important representative of medical occultism in the first half of the 20th century. He worked as a journal editor and published a 13-volume book series about occult medicine, mainly written by himself. His hypotheses were closely related to the "Lebensreform" movement around 1900. Regarding diagnostics, he relied on astrology, cheiromancy, and clairvoyance, while therapeutics were dominated by diet and spagyric remedies according to Cesare Mattei (1809-1896) and Carl-Friedrich Zimpel (1801-1879). In his later years, he developed his own healing system, initially comprising eight, later only two preparations. Surya remedies were commercially available until the end of the 20th century, PMID:22822609

  1. Developing and Transition Economies in the Late 20th Century: Diverging Growth Rates, Economic Structures, and Sources of Demand

    Codrina Rada; Lance Taylor

    2006-01-01

    This study reviews the growth and development performance of developing countries in the latter part of the 20th century. Sustained growth among “successful” countries was accompanied by structural change in terms of output and labour share shifts, trade diversification, sustained productivity growth with some strong reallocation effects due to movements of labour from low to high productivity sectors. Neither the widely accepted “twin deficits” nor the “consumption-smoothing” behaviour views...

  2. Ukrainian-Polish-Russian relations as covered by Volyn periodicals of the 19th-20th centuries

    Bila, Oksana

    2014-01-01

    The paper reviews historical and regional studies publications of Volyn periodicals in the 19th-20th centuries, which covered the Ukrainian-Polish-Russian relations. Their key theme lines are indicated, specifically a socio-economic line which addressed social inequality problems,  enslavement of Ukrainian peasants by Polish gentry at the time when some Ukrainian regions were a part of the Polish-Lithuanian Commonwealth; a religious line which covered consequences of Polonization, threats to ...

  3. Hard Rock Miners` Phthisis in 19th and Early 20th Century Britain: From Diagnosis to Compensation

    Mintz, Fredric

    2009-01-01

    AbstractIntroduction: Hard Rock Miners Phthisis in 19th and Early 20th Century Britain: From Diagnosis to CompensationByFredric MintzDoctor of Philosophy in HistoryProfessor Thomas Laqueur, ChairThe development of new technologies and new patterns of working were indispensable to the accelerated economic growth, which characterized most of nineteenth century Britain. For much of that period the demand for raw siliceous containing materials increased sharply. In this process, equipment, which ...

  4. Investigation on the use of iron and steel for restoration purposes during 19th and 20th century

    Hui-Yin Lee

    2008-01-01

    Since the earliest times, wrought iron cramps and dowels were used in the traditional masonry structures to secure stones which might be prone to movement or displacement. In the period between the late 19th century and the early 20th century, masonry-clad buildings are exploded to use. However, due to the porous nature of the mortar and the inconsistent fill around the steel members, the protective oxide film is lost over time, resulting in corrosion of the steel framing...

  5. Theoretical and Epistemological Foundations of Integrating Digital Technologies in Education in the Second Half of the 20th Century

    Dakich, Eva

    2014-01-01

    This chapter provides an overview of theoretical and pedagogical perspectives related to the integration of digital technologies in the second half of the 20th century. It evaluates dominant discourses, epistemological frameworks and theories of learning that have been influencing the deployment of new technologies into schools and their integration in learning and teaching. The four epistemological models examined in this chapter are behaviourism, cognitivism, constructivism and sociological...

  6. Socio-spatial segregation and housing in Brazil between late 19th and the early 20th century

    Edmilson Soares; Leandro Bruno Santos

    2015-01-01

    This article aims to analysis the Brazilian city between late 19th and the early 20th century, when there are structural changes in the economic, social and political framework that will lead to new forms of production and consumption of the city and housing. It overlaps the archaic matrix of colonial trait a new guise that disguised as modern has only exacerbated their dramatic njustices, leading to production of a segregated urban space, both socially and space terms. The access to land...

  7. Reconstructing 20th century global hydrography: a contribution to the Global Terrestrial Network- Hydrology (GTN-H)

    D. Wisser; Fekete, B.M.; C. J. Vörösmarty; A. H. Schumann

    2010-01-01

    This paper presents a new reconstruction of the 20th century global hydrography using fully coupled water balance and transport model in a flexible modeling framework. The modeling framework allows a high level of configurability both in terms of input forcings and model structure. Spatial and temporal trends in hydrological cycle components are assessed under "pre-industrial" conditions (without modern-day human activities) and contemporary conditions (incorporating the effects of irrigation...

  8. ANTHROPOLOGICAL PROBLEMS IN THE PHILOSOPHICAL WORKS OF RUSSIAN SPIRITUAL ACADEMIES’ TEACHERS OF THE EARLY 20TH CENTURY

    Ershova, M. A.

    2014-01-01

    The paper deals with the analysis of philosophical and theological creativity of Russian theological academies’ teachers of the early 20th century. The aim of this study is to identify the impact of methodological foundations’ changes of philosophical-theological quest on the teachers of Russian theological academies and the educational process itself in theological schools. Methods. The author focuses on the content of training courses delivered in the theological academies in the first two ...

  9. A general overview of the literature for children in the first part of the 20th century

    Rudina Alimerko

    2011-01-01

    Although in the first decades of the 20th century the Albanian literature for children did not recognize any distinguished literary work, a series of liberation insurrections in north and south as well as the Declaration of Independence in 1912 show the great efforts of our Renaissance figures who were teachers, ideologists and active participants in the armed movement. All this big issues in the life of Albanian people as well as their freedom-loving spirit become the inspiration of many the...

  10. 杰克逊·波洛克对美国20世纪美术的影响%The Influence of Jackson Pollock on the American Arts in the 20th Century

    马铁骊

    2012-01-01

    As a painting genre appeared after the Second World War,Abstract Expressionism had an inconvenient affect on the American arts and even the wstem arts in the 20th century.Jackson Pollock,as the mainstay of the Abstract Expressionism and the typical representative of the American arts in the 20th century,made a mark on the history of Western arts with personal char- acteristics.This paper starts with the development of the Abstract Expressionism,emphasizes on Pollock's aesthetic ideology and creation methods,and probes into the influence of Pollock himself and the Abstract Expressionism in the 20th century Western arts.%作为二战后出现的一种绘画流派,抽象表现主义对美国艺术乃至整个西方艺术在20世纪的发展产生了难以忽视的影响。作为抽象表现主义的中流砥柱以及美国20世纪艺术的代表人物之一.杰克逊·波洛克以其独特的美学观点与创作手法在西方艺术史上留下了极富个人特色的一笔。

  11. Analysis of snow in the 20th and 21st century Geophysical Fluid Dynamics Laboratory coupled climate model simulations

    DéRy, Stephen J.; Wood, Eric F.

    2006-10-01

    We evaluate the representation of the 20th century Northern Hemisphere, North American, and Eurasian snow cover extent, frequency, and mass by the Geophysical Fluid Dynamics Laboratory coupled climate model, version 2 (CM2) and then explore the 21st century trends and changes in these quantities. The CM2 simulations of 20th century climate capture the seasonal cycle in Northern Hemisphere snow cover extent and produce a mean annual snow area of 25 × 106 km2 that equals the satellite-based observations for the period 1973-2000. The simulated snow cover frequency and snow mass generally decline from north to south, but longitudinal gradients in these variables are also found. Snow mass over North America, especially during spring, is underestimated by CM2. Simulations of 21st century climate using three Intergovernmental Panel on Climate Change Special Report on Emission Scenarios reveal strong trends in Northern Hemisphere snow cover extent, frequency, and mass. These simulations suggest that the annual Northern Hemisphere mean snow cover extent (total snow mass) will decrease by 12 to 26% (20 to 40%) by 2100 from their 21st century mean values. Large declines in 21st century snow cover frequency (up to 50%) and snow mass (up to 100 kg m-2) arise during fall, winter, and spring over southern Canada and the northern United States, the Western Cordillera of North America, and western Eurasia compared to the 20th century CM2 simulations.

  12. Enhanced 20th century heat transfer to the Arctic simulated in the context of climate variations over the last millennium

    J. H. Jungclaus

    2014-07-01

    Full Text Available Oceanic heat transport variations, carried by the northward flowing Atlantic Water, strongly influence Arctic sea-ice distribution, ocean–atmosphere exchanges, and pan-Arctic temperatures. Paleoceanographic reconstructions from marine sediments near Fram Strait have documented a dramatic increase in Atlantic Water temperatures over the 20th century, unprecedented in the last millennium. Here we present results from Earth system model simulations over the last millennium that reproduce and explain reconstructed integrated quantities such as pan-Arctic temperature evolution during the pre-industrial millennium as well as the exceptional Atlantic Water warming in Fram Strait in the 20th century. The associated increase in ocean heat transfer to the Arctic can be traced back to changes in the ocean circulation in the sub-polar North Atlantic. An interplay between a weakening overturning circulation and a strengthening sub-polar gyre as a consequence of 20th century global warming is identified as driving mechanism for the pronounced warming along the Atlantic Water path toward the Arctic. Simulations covering the late Holocene provide a reference frame that allows us to conclude that the changes during the last century are unprecedented in the last 1150 years and that they cannot be explained by internal variability or natural forcing alone.

  13. Global Conflict and Elite Integration in the 19th and Early 20th Centuries

    Barr, Kenneth; Shoon Lio; Christopher Schmitt; Anders Carlson; Kirk Lawrence; Jonathan Krause; Yvonne Hsu; Christopher Chase-Dunn; Thomas E. Reifer

    2006-01-01

    ] This is a draft of a paper to be presented at the Annual Meeting of the American Sociological Association, in Montréal, Canada, at 10:30 am on August 11, 2006 at the session on World Systems organized by Farshad Araghi. It is a product of the Global Elites Research Group based at the Institute for Research on World-Systems, and has included among its members for 2005-06 Kenneth Barr, Anders Carlson, Christopher Chase-Dunn, Rebecca Giem, Shoon Lio, Yvonne Hsu, Linda Kim, Jonathan Krause, Kir...

  14. The Loss of Balance between the Art and Science of Management: Observations on the British Experience of Education for Management in the 20th Century

    Guerriero Wilson, Robbie

    2015-01-01

    This essay considers the developments in education for management in 20th-century Britain. In the late 19th and early 20th centuries, that is, the highpoint of the United Kingdom's economic success, management was considered more of an art than a science, and formal education specifically for management was limited. After the Second World…

  15. Soil erosion: 20th century equations with 21st century data?

    The Dust Bowl of the 1930's focused the attention of the US on soil erosion and land conservation. The Universal Soil Loss Equation (USLE) was the result of this effort and has remained one of the most widely used equations for soil erosion prediction world-wide. This empirical relationship has been...

  16. Shoreline Response to Rapid 20th Century Sea-Level Change along the Iranian Caspian Coast

    Kakroodi, A.A.; Kroonenberg, S.B.; Goorabi, A.; Yamani, M.

    2013-01-01

    The Caspian Sea, the largest lake in the world, is characterized by rapid sea-level changes. This provides a real physical model of coastal response to rapid sea-level change in a period of just a few years, which might take a millennium along oceanic coasts. Between 1929 and 1995, the Caspian sea l

  17. Regional Variability of the 20th century sea level rise from Ocean-Atmosphere Coupled Climate Models

    Chevrier, Robin; Meyssignac, Benoit; Bourgeois, Elsa; Marzeion, Ben; Cazenave, Anny

    2014-05-01

    Regional Variability of the 20th century sea level rise from Ocean-Atmosphere Coupled Climate Models. R.Chevrier, B. Meyssignac, E. Bourgeois, B. Marzeion and A.Cazenave Over the 20th century, tide gauge records indicate a rise in global mean sea level of 1.7 mm.y-1 (Church and White 2011). This rise is essentially due to the warming of the ocean (which made the ocean water expand and sea level rise by ˜0.6 mm.yr-1) and the melt of mountain glaciers (which added more water to the ocean and made sea level rise by ˜,0.6 mm.yr-1 Gregory et al. 2013). Land water changes and Greenland surface mass balance changes also played a role but of lesser importance ( ˜0.1 mm.yr-1 for the land water storage and ˜0.2 mm.yr-1 for the Greenland mass balance since 1900, Gregory et al. 2013). Each of these different contributors to the 20th century global mean sea level rise had also an impact on the regional sea level changes. This regional signal, which must be added to the global sea level rise to compute the total sea level signal, is essential when we want to assess the impacts of the 20th century sea level rise on coastal areas and low lying islands. In this study we aim to estimate this 20th century regional sea level changes. We use historical runs of the CMIP5 (Coupled Model Intercomparison Project Phase 5) coupled climate models, which cover the period 1850-2006, to estimate the different contributors to the regional sea level changes since 1900. The ocean warming contribution is directly computed from the Temperature and Salinity outputs of the CMIP5 models while the mountain glaciers and the Greenland contributions are computed from offline models using the surface temperature output of CMIP5 models. Concerning the landwater storage contribution, it is actually mainly of anthropogenic origin over the 20th century (Ngoduc et al. 2005, Meyssignac et Cazenave 2012) so it is not modeled in CMIP5 models. Consequently, we use here estimates of the landwater storage

  18. Enforced linguistic conversion: translation of the Macedonian toponyms in the 20th century

    Katica Kulavkova

    2015-08-01

    Full Text Available Enforced linguistic conversion: translation of the Macedonian toponyms in the 20th centuryThe article deals with the issue of forced conversion of Macedonian toponyms, considered as a form of linguistic and cultural dislocation or luxation (the Latin luxatio originating from luxus – dislocated. The toponyms are not just eminently linguistic but also a part of civilization’s memory of nations and of humankind, and that is why they are protected by international regulations. The act of translating toponyms from one language to another, within the frames of culturally and ethnically marked space, is undeniable violence against the cultural heritage. A change of a toponym, its forced translation into another language is, according to these legal acts, a crime against culture. For a toponym is a true reflection of historical facts and historical memories. Toponyms can be transcribed onto a different alphabet, letter‑by‑letter (transliteration, but should not be translated, especially not on the territory which is their civilization’s cradle, where they are practiced and inherited. Violent conversion of toponyms is an introduction to conversion of historical narratives and modern ethno‑cultural identities. History shows that there are violent forms of linguistic, cultural, religious and ethnic dislocations. The example of radical dislocation of Macedonian toponyms is probably one of the few in modern history. It has been taking place over an almost entire century – from the 1920s to the 21st century’s first decade. Macedonian toponyms, for centuries present on the territory of ethnic Macedonia (for which there is indisputable evidence, are being dislocated from their original linguistic/cultural context within several national entities: the Greek, Albanian and – paradoxically – Macedonian states. Such violent translation of toponyms is not devoid of geopolitical consequences.The conversions of Macedonian toponyms are just a step

  19. Effects of breeding activity on durum wheat traits breed in Italy during the 20th century

    Luigi Cattivelli; Natale Di Fonzo; Anna Maria Mastrangelo; Loredana Matteu; Pasquale De Vita

    2007-01-01

    Italy is the first world producer of pasta from durum wheat (Triticum durum Desf.) and an intense breeding activity has been conducted over the last century to support the long tradition of pasta making. This manuscript reviews the results achieved through the Italian breeding programs over last century. The analysis of data allows to appreciate the selective pressure imposed by the breeders on plant height and phenology to select cultivars well adapted to the Italian semi-arid conditions, wh...

  20. LHC Restart 2009 - Accelerating Science - Beam captured just before midnight, November 20th 2009

    CERN Video Productions

    2009-01-01

    Geneva, 20 November 2009. Particle beams are once again circulating in the world's most powerful particle accelerator, CERN*'s Large Hadron Collider (LHC). This news comes after the machine was handed over for operation on Wednesday morning. A clockwise circulating beam was established at ten o'clock this evening. This is an important milestone on the road towards first physics at the LHC, expected in 2010.

  1. Hans Bethe and Physics in/of the 20th Century

    Schweber, Silvan [Brandeis University

    2012-12-12

    I will present some facets of Hans Bethe’s life to illustrate how I have used biography to narrate certain aspects of the history of twentieth century physics. I will focus on post World War II quantum field theory, on the relation between solid state/condensed matter physics and high energy physics, and make some observations regarding certain “top down” views in solid state physics in postmodernity.

  2. Stereotypes of Ageing: Messages Promoted by Age-Specific Paper Birthday Cards Available in Canada

    Ellis, Shannon R.; Morrison, Todd G.

    2005-01-01

    Birthday cards are a ceremonial token that may purposefully or unintentionally transmit stereotypes about the ageing process. In the current study, the authors examined 150 age-specific paper birthday cards sold in retail outlets located in a small metropolitan area. Results suggest that a greater proportion of the cards' textual messages…

  3. Promoting Number Theory in High Schools or Birthday Problem and Number Theory

    Srinivasan, V. K.

    2010-01-01

    The author introduces the birthday problem in this article. This can amuse willing members of any birthday party. This problem can also be used as the motivational first day lecture in number theory for the gifted students in high schools or in community colleges or in undergraduate classes in colleges.

  4. Women's Position in Lithuanian Labour Market in the 20th century

    Virginija Jureniene

    2008-09-01

    los compromisos familiares.The paper draws attention to women's position in the changing labour market of the 1920s-1930s and after the reestablishment of independence in 1990 in the Republic of Lithuania. The author carries out a historical analysis of the impact of the laws issued at that period to solve the issue of unemployment and explores their implications to women's position in the labour market. Among the most significant laws dealing with rising unemployment in Lithuania at the beginning of the 20th century was the one demanding from an employer to dismiss an employee whose spouse had a job. Since the society of that time was predominantly patriarchal, married women were the first to be dismissed. The law raised a stormy reaction from women who sought support from international organizations such as the Federation of International Diplomaed Women and the Union of the Nations. However, the issue was not solved till 1940 and burst out after the reestablishment of the state in 1990 and persisted till 1998 when the law of Equal Opportunities was issued.

  5. Enlightenment of Germanic Rise and Fall in the 20th Century to China%20世纪德国的兴衰对中国的启示

    张晓锋

    2013-01-01

    20世纪德国的发展轨迹极为典型。自从1871年俾斯麦统一德国后,德国借着国家统一和两次工业革命的东风,迅速崛起,一跃成为当时的资本主义强国之一。随后德国相继经历了战争、战败、再复兴、再挑起战争、再战败。在二战后,德国终于跳出战争怪圈,与其欧洲邻国启动欧洲一体化进程,成就了今天德国的大国地位。德国的发展特别是二战后再度迅速崛起有许多值得中国借鉴的地方,尤其在崛起方式、统一问题、外交选择和文化实力等方面。%The developing track of German is a typical one in the 20th century. After Bismarck unified German in 1871, it became one of the strongest capitalist countries by means of its unification and the two industrial revolutions. Then German experienced the World War I, being defeated and its renaissance. And then it provoked the World War II and was defeated again. After World War II, German finally jumped out of the vicious circle of war and with its neighbor countries promoted the development of European Integration, and achieved its status of great power today. German’s development, especially which after World War II, its developing track has great reference value to China, especially in the way of rising, unification, diplomacy and cultural power.

  6. Nutritionally "Empty" but "Full" of Meanings: The Socio-Cultural Significance of Birthday Cakes in Four Early Childhood Settings

    Albon, Deborah

    2015-01-01

    This article examines the socio-cultural significance of birthday cakes with the purpose of reflecting upon birthday cake practices enacted in four early childhood settings in England. I argue that birthday cakes occupy an ambiguous place in early childhood practice: seen to be both "risky"--a term I problematise--"and"…

  7. History of mathematics a chronological discovery up to 20th century

    Mohanty, PC

    2010-01-01

    Every discipline has it own unique history. Markedly different from others, the history of mathematics is primarily concerned with investigations into the origin of discoveries in mathematics and, to a lesser extent, an investigation into methods and notations of the past. Again, the history of mathematics covers the whole of mankind's civilization. This book is an effort to show how mathematical works, carried out by scholars from different countries and different regions, in any particular age, have spread all over the world, despite the geographical barriers. The author here brings out cent

  8. Emancipation, Women and the State: A Competing Agenda in the 20th Century Malaysia

    Che Husna Azhari

    2001-01-01

    The structural contradictions of being Muslim and members of a nation-state for women in modern-day Muslim nation-states created after the Second World War have never been fully resolved. The problem is even more compounded for Malaysia, which started life as a collection of sultanates, graduating to a multi-racial nation-state. In the beginning, Malay women saw emancipation as involvement in party politics. But much of the development envisaged for women was hampered by illiteracy. Since 197...

  9. Shoreline Response to Rapid 20th Century Sea-Level Change along the Iranian Caspian Coast

    Kakroodi, A.A.; Kroonenberg, S.B.; Goorabi, A.; M. Yamani

    2013-01-01

    The Caspian Sea, the largest lake in the world, is characterized by rapid sea-level changes. This provides a real physical model of coastal response to rapid sea-level change in a period of just a few years, which might take a millennium along oceanic coasts. Between 1929 and 1995, the Caspian sea level experienced the last cycle, with a range of 63 m. This caused disastrous effects along the coast and destroyed many buildings, roads, farms, and other human property. During the preceding 48 y...

  10. The 20th annual intelligent ground vehicle competition: building a generation of robotists

    Theisen, Bernard L.; Kosinski, Andrew

    2013-01-01

    The Intelligent Ground Vehicle Competition (IGVC) is one of four, unmanned systems, student competitions that were founded by the Association for Unmanned Vehicle Systems International (AUVSI). The IGVC is a multidisciplinary exercise in product realization that challenges college engineering student teams to integrate advanced control theory, machine vision, vehicular electronics and mobile platform fundamentals to design and build an unmanned system. Teams from around the world focus on developing a suite of dual-use technologies to equip ground vehicles of the future with intelligent driving capabilities. Over the past 20 years, the competition has challenged undergraduate, graduate and Ph.D. students with real world applications in intelligent transportation systems, the military and manufacturing automation. To date, teams from over 80 universities and colleges have participated. This paper describes some of the applications of the technologies required by this competition and discusses the educational benefits. The primary goal of the IGVC is to advance engineering education in intelligent vehicles and related technologies. The employment and professional networking opportunities created for students and industrial sponsors through a series of technical events over the four-day competition are highlighted. Finally, an assessment of the competition based on participation is presented.

  11. False memory 1/20th of a second later: what the early onset of boundary extension reveals about perception

    Intraub, Helene; Dickinson, Christopher

    2008-01-01

    Errors of commission are thought to be caused by heavy memory loads, confusing information, and/or lengthy retention intervals. We report false memory beyond the boundaries of a view, boundary extension, after less than 1/20th of a second. Photographs of scenes were interrupted by a 42-ms or 250-ms mask, 250-ms into viewing, before reappearing or being replaced with a different view (Experiment 1). Post-interruption photographs that were unchanged were rated as “closer-up”; when they changed,...

  12. The Role of the United States Public Health Service in the Control of Syphilis during the Early 20th Century

    Sarka, George

    2013-01-01

    ABSTRACT OF THE DISSERTATIONThe Role of United States Public Health Service in the Control of Syphilis during the Early 20th Century byGeorge SarkaDoctor of Public HealthUniversity of California, Los Angeles, 2013Professor Paul Torrens, ChairStatement of the Problem: To historians, the word syphilis usually evokes images of a bygone era where lapses in moral turpitude led to venereal disease and its eventual sequelae of medical and moral stigmata. It is considered by many, a disease of the p...

  13. The influence of inequality on the standard of living: worldwide anthropometric evidence from the 19th and 20th centuries.

    Blum, Matthias

    2013-12-01

    We provide empirical evidence on the existence of the Pigou-Dalton principle. The latter indicates that aggregate welfare is - ceteris paribus - maximized when incomes of all individuals are equalized (and therefore marginal utility from income is as well). Using anthropometric panel data on 101 countries during the 19th and 20th centuries, we determine that there is a systematic negative and concave relationship between height inequality and average height. The robustness of this relationship is tested by means of several robustness checks, including two instrument variable regressions. These findings help to elucidate the impact of economic inequality on welfare. PMID:23352274

  14. Dialogue of cultures and cultural primitivism in anti-utopian novel of the first half of the 20th century

    Dolzhenko, Svetlana

    2014-01-01

    The article considers the problem of the dialogue of cultures as it is represented in the antiutopian novels of the first half of the 20th century. The author points out the typological features of the novels “We” by Evgeny Zamyatin, “Brave New World” by Aldous Huxley and “1984” by George Orwell and investigates the place and the role of the dialogue of cultures in the light of Mikhail Bakhtin’s concept and tendency toward cultural primitivism as the result of totalitarian influence in ...

  15. Two hegemonies – two technological regimes : American and Norwegian whaling in the 19th and 20th Century

    Basberg, Bjørn L.

    2006-01-01

    The 19th century whaling industry was dominated by the United States while the 20th century industry had its origins in Norway and was dominated for years by that nation. The focus of the paper, is to explore the relationship between the two so-called hegemonic whaling nations. Specifically, we are looking for encounters between the two industries that in one way or another may explain why the Norwegians did not enter into traditional pelagic whaling in the mid 19th century, an...

  16. Climatic changes between 20th century and pre-industrial times over South America in regional model simulations

    Wagner, S.; Fast, I.; F. Kaspar

    2011-01-01

    Two simulations with a regional climate model are analyzed for climatic changes between the late 20th century and a pre-industrial period over central and southern South America. The model simulations have been forced with large-scale boundary data from the global simulation performed with a coupled atmosphere-ocean general circulation model. The regional simulations have been carried out on a 0.44° × 0.44° grid (approx. 50 km × 50 km horizontal resolution). The differences in the external fo...

  17. Intercomparison of 20th century tropical climate model hindcasts and coral δ18O data using a forward proxy model

    Thompson, D. M.; Evans, M. N.; Ault, T. R.; Cole, J. E.; Emile-Geay, J.

    2009-12-01

    Forward modeling of climate proxies enables identification of uncertainties in the interpretation of high resolution proxy archives in a manner that is complementary to classical inverse methods. By coupling proxy models to climate model output driven with realistic external forcings, a framework for assessment of their consistency with proxy observations over long timescales is created. Here we model reef coral oxygen isotopic composition (δ18O) as a function of sea-surface temperature (SST) and sea-surface salinity (SSS), the latter a linear proxy for the isotopic composition of seawater in the tropics. We first validate this model against a comprehensive network of 20th century coral δ18O measurements. When driven with historical SST and SSS data for the last ~50 years, the forward model is able to capture the spatial and temporal pattern of ENSO variability observed in the corals better than a univariate SST-based model, hence establishing the skill of this bivariate model. We then drive the forward model with SST and SSS from 20th-century simulations of state-of-the-art climate models, such as GFDL CM2.0 (run 1 c3m; Delworth et al, 2006, Wittenberg et al, 2006), to assess the ability of climate models to reproduce tropical climate variability. GFDL CM2.0 forward modeled coral δ18O accurately reproduces the spatio-temporal pattern of the observed coral δ18O trend over the 20th century, and furthermore suggests the trend was primarily driven by increased SSTs. However, the magnitude of the modeled trend is smaller than observed in the corals, suggesting that coral physiology has reacted in a non-linear fashion to the observed climatic forcing, or that GFDL CM2.0's tropical response to external climate forcing is too small. Instead, variance in GFDL modeled corals is dominated by strong interannual variability that is much greater than that observed in corals. The temporal evolution of modeled ENSO variance and frequency over the 20th century is also markedly

  18. Jeewanu, or the `particles of life’ The approach of Krishna Bahadur in 20th century origin of life research

    Mathias Grote

    2011-09-01

    Starting in the 1960s, the Indian chemist Krishna Bahadur, from the University of Allahabad, published on organic and inorganic particles that he had synthesized and baptized `Jeewanu’, or `particle of life’. Bahadur conceived of the Jeewanu as a simple form of the living. These studies are presented in a historical perspective and positioned within mid-20th century research on the origin of life, notably the so-called `coacervate theory’ of the Soviet biochemist Aleksandr I Oparin. The concepts of life proposed by Bahadur, Oparin and others are discussed from a historical standpoint.

  19. Geological exploration of South Atlantic islands and its contributions to the continental drift debate of the early 20th century

    Stone, Philip

    2015-01-01

    The geological character of the South Atlantic islands was only slowly established during the first half of the 20th century. That same period was marked by a generally dismissive view of continental drift but, as the continental nature of the islands became apparent, their ‘oceanic’ setting was utilised by both sides of the ‘drift’ debate to support their respective positions. So islands such as the Falklands archipelago and South Georgia were cited either as fragments detached from larger c...

  20. Development of the metallurgical industry in the Dnieper region of Ukraine at the beginning of the 20th century (1900–1917)

    BOLSHAKOV V. I.; Yevseeva, H. P.; Peretokin, A. H.

    2016-01-01

    Peculiarities of the metallurgical industry development in the Dnieper region of Ukraine at the beginning of the 20 th century are regarded in the article. The beginning of the 20th century was characterized by the difficult social-economic and political situation. Different aspects of the industrial development of the Dnieper region in the beginning of the 20th century were regarded in the works of the well-known researchers D. I. Shpoliansky, P. O. Khromov, A. L. Tsukernik, O. O. Nesterenko...

  1. Emancipation, Women and the State: A Competing Agenda in the 20th Century Malaysia

    Che Husna Azhari

    2001-12-01

    Full Text Available The structural contradictions of being Muslim and members of a nation-state for women in modern-day Muslim nation-states created after the Second World War have never been fully resolved. The problem is even more compounded for Malaysia, which started life as a collection of sultanates, graduating to a multi-racial nation-state. In the beginning, Malay women saw emancipation as involvement in party politics. But much of the development envisaged for women was hampered by illiteracy. Since 1970, with the new found petro-ringgit, however, the situation changed. Women attained emancipation in mobility, political and economic spheres. Yet, an appropriate space for motherhood and wifehood has not been carved out in the industrial state.

  2. TOPOGRAPHIC MAPPING SUPPORT IN THE SOUTH AFRICAN MILITARY DURING THE 20TH CENTURY

    Hennie Smit

    2012-02-01

    Full Text Available Maps provide a base for all intelligence operations and strategic and tactical decisions, supporting the planning and execution of all battlefield functions. The development of military mapping support in South Africa, related closely to the development of aerial photography, may be divided into five, sometimes overlapping, phases. The first of these phases spans the years from 1840 to 1930 and is characterised by the gradual recognition that aerial photographs could be used for mapping. Two major conflicts – the Anglo Boer War and the First World War – marked this development. The Second World War is the key event of the second phase (1930–1950, which witnessed a rapid expansion of aerial photo coverage. The third phase (1945–1960 saw the overemphasising of interpretation techniques rather than the analytical use of results, which was rectified during the fourth phase (1955–1962 when the focus shifted to the applied uses of air-photo interpretation. During the third and fourth phases the topographic mapping support ability of the South African military was expanded. The fifth phase (since 1960 commenced with the expansion of data gathering and analysis into portions of the electromagnetic spectrum beyond the small visible sector. During this period the protracted nature of the conflict on the northern border of Namibia (formerly South West Africa and the war in Angola focused attention on the South African military mapping system. The National Service system allowed for the expansion of mapping units and the thorough mapping of large areas adjoining our borders. Through all five phases, mapping in the South African military has advanced from hand-produced maps to the utilisation of complex equipment that satisfies the sophisticated mapping needs of a modern defence force.This paper presents a brief history of both mapping support and the mapping units that have served within the South African theatre during the twentieth century. In

  3. Social norms for population displacements caused by large dams France, 20th century

    Armelle Faure

    2009-03-01

    Full Text Available With the passage of time and insights from a number of historical studies it is now possible to take a look back at the way rural populations in France were displaced for the construction of large dams during and after the Second World War. Today, international standards relating to the social implications of dam development projects are imposed on dam builders by both governments and financing institutions. However, in the absence of these international social standards, how did population displacements take place in the past? This paper provides a retrospective look in the light of the current "protection policies" developed by the World Bank and the Asian Development Bank. Retrospective case studies are based on research conducted in the Alps by Virginie Bodon on Tignes and Serre-Ponçon for her doctoral thesis in history (1999 and on the book by D. Varaschin on Tignes. The author uses her own studies on the impact of the large dams of the Upper Dordogne, based on research conducted in departmental and municipal archives and on interviews with those who witnessed the implementation of displacement policies and with their children (1998-2005. The author draws on her experience as an anthropologist for the World Bank to analyse the ways in which these displacements were actually carried out. The forced displacements, euphemistically referred to as "involuntary resettlement" in discourses on development, took on increasing notoriety with the international energy crisis. The dams gave rise to an international debate on their social and environmental impacts, a debate continued by the World Commission on Dams. Today, when financing has again become available for the construction of new dams throughout the world, it seems opportune to provide some insights into the social implications of large dam development projects based on the experience of France, a country that has been, in many respects, one of the most innovative in the implementation of

  4. Surgical pathology in the 20th century at the Mount Sinai Hospital, New York.

    Geller, Stephen A

    2008-08-01

    How did the education of surgical pathology, and pathology in general, differ at Mount Sinai? Passing the examination of the American Board of Pathology was never the focus of the department. Learning criteria or quoting references was de-emphasized, but mastery of macroscopic pathology was required, supported in both word and action by two brilliant surgical pathologists, Otani and Kaneko, and by two extraordinary medical pathologists, Klemperer and Popper. Meticulous microscopy emphasized pattern rather than reliance on lists of discrete features. Otani developed a regular "problem case" meeting for a community of pathologists, made up of alumni and other interested pathologists, as well as active department members. These monthly sessions provided the highest level of "continuing medical education." Otani and Kaneko unequivocally believed in learning from cases, and Mount Sinai residents were fortunate both in the one-to-one teaching and in the wealth of material, in all systems, that came to surgical pathology. Outstanding pathologists who came from Mount Sinai settled throughout the country and provided the highest level of diagnoses, but, with the exception of Bernard Wagner, Emanuel Rubin, Fiorenzo Paronetto, Richard Horowitz, Michael Gerber, Marc Rosenblum, Bruce Wenig, Jaishree Jagirdar, Swan Thung, Cesar Moran, Hideko Kamino, Philip LeBoit, Alberto Marchevsky, and others, there were relatively few academic leaders. Otani and Kaneko did not have national reputations. Klemperer, although world renowned, was relatively unassuming, and his disciples numbered almost as many nonpathologists as pathologists. Popper did establish a major center for liver pathology, with students coming from around the world, but did not particularly promote general surgical pathology. Can the Mount Sinai approach still be applied? The decline in the numbers of autopsies performed, the demands for rapid turnaround time, the de-emphasis of gross pathology as newer technologies (eg

  5. [The creation of hospitals by charities in Minas Gerais (Brazil) from 18th to 20th century].

    Marques, Rita de Cássia

    2011-01-01

    This article is the fruit of research into the cultural heritage of healthcare in Minas Gerais (Brazil) and explores the construction of hospitals supported by Catholic charities from the 18th to 20th century. Catholicism has always been strong in Minas Gerais, partly because the Portuguese Crown prohibited the free travel of priests, who were suspected of illegally trading in gold from the mines. A brotherhood was responsible for creating the first Santa Casa, in Vila Rica. Another very important religious group in Brazil, the Vincentians, was also devoted to charitable works and propagated the ideas on charity of Frederico Ozanan, based on the work of St. Vincent de Paul. This group comprised both a lay movement, supported by conferences organized by the St. Vincent de Paul Society, and a religious order, the Vincentian priests and nuns. Catholic physicians make up the third group studied here, organized in a professional association promoted by the Catholic Church. The brotherhoods, Vincentians, and associations, with their Santa Casas, represent a movement that is recognized worldwide. The enormous Catholic participation in these charitable works brought in the physicians, who would often make no charge and exerted efforts to create hospitals that served the population. Although the capital of Minas Gerais was the creation of republicans and positivists in the 20th century, with their ideas of modernity, it remained dependent on Christian charity for the treatment of the poor. PMID:21936227

  6. The controversial early brightening in the first half of 20th century: a contribution from pyrheliometer measurements in Madrid (Spain)

    Antón, M; Aparicio, A J P

    2014-01-01

    A long-term decrease in downward surface solar radiation from the 1950s to the 1980s ("global dimming") followed by a multi-decadal increase up to the present ("brightening") have been detected in many regions worldwide. In addition, some researchers have suggested the existence of an "early brightening" period in the first half of 20th century. However, this latter phenomenon is an open issue due to the opposite results found in literature and the scarcity of solar radiation data during this period. This paper contributes to this relevant discussion analyzing, for the first time in Southern Europe, the atmospheric column transparency derived from pyrheliometer measurements in Madrid (Spain) for the period 1911-1928. This time series is one of the three longest dataset during the first quarter of the 20th century in Europe. The results showed the great effects of the Katmai eruption (June 1912, Alaska) on transparency values during 1912-1913 with maximum relative anomalies around 8%. Outside the period affect...

  7. Socio-spatial segregation and housing in Brazil between late 19th and the early 20th century

    Edmilson Soares

    2015-12-01

    Full Text Available This article aims to analysis the Brazilian city between late 19th and the early 20th century, when there are structural changes in the economic, social and political framework that will lead to new forms of production and consumption of the city and housing. It overlaps the archaic matrix of colonial trait a new guise that disguised as modern has only exacerbated their dramatic njustices, leading to production of a segregated urban space, both socially and space terms. The access to land and the State participation are central to the explanation of theses inequalities. The methodological procedures include bibliographic survey, selection and reading, data compilation, data and information systematization, data analysis. We conclude that, between late 19th and early 20th century, the Brazilian cities are the product of urbanization whose logic state intervention produced clear inequalities between sectors of the city, because it favored those spaces fitted with infrastructure at the expense of the shortage of rest of the city.

  8. Causes of a fresher, colder northern North Atlantic in late 20th century in a coupled model

    Hu, Aixue; Meehl, Gerald A.; Han, Weiqing

    2007-05-01

    Observational evidence indicates that in the northern North Atlantic, especially in the Labrador Sea, almost the whole column of the ocean water is fresher, and colder in late 20th century than in 1950-1960s. Here we analyze a four-member ensemble of the 20th century simulations from a coupled climate model to examine the possible causes for these observed changes. The model simulations resemble the observed changes in the northern North Atlantic. The simulated results show that a decreased meridional freshwater divergence and an increased meridional heat divergence associated with a weaker thermohaline circulation in the North Atlantic are the primary causes for the freshening and cooling in the northern North Atlantic. The increased precipitation less evaporation tends to enforce the freshening, but the reduced sea ice flux into this region tends to weaken it. On the other hand, the surface warming induced by a higher atmospheric CO 2 concentration tends to heat up the northern North Atlantic, but is overcome by the cooling from increased meridional heat divergence.

  9. Response of the everglades ridge and slough landscape to climate variability and 20th-century water management

    Bernhardt, C.E.; Willard, D.A.

    2009-01-01

    The ridge and slough landscape of the Florida Everglades consists of a mosaic of linear sawgrass ridges separated by deeper-water sloughs with tree islands interspersed throughout the landscape. We used pollen assemblages from transects of sediment cores spanning sawgrass ridges, sloughs, and ridge-slough transition zones to determine the timing of ridge and slough formation and to evaluate the response of components of the ridge and slough landscape to climate variability and 20th-century water management. These pollen data indicate that sawgrass ridges and sloughs have been vegetationally distinct from one another since initiation of the Everglades wetland in mid-Holocene time. Although the position and community composition of sloughs have remained relatively stable throughout their history, modern sawgrass ridges formed on sites that originally were occupied by marshes. Ridge formation and maturation were initiated during intervals of drier climate (the Medieval Warm Period and the Little Ice Age) when the mean position of the Intertropical Convergence Zone shifted southward. During these drier intervals, marsh taxa were more common in sloughs, but they quickly receded when precipitation increased. Comparison with regional climate records suggests that slough vegetation is strongly influenced by North Atlantic Oscillation variability, even under 20th-century water management practices. ?? 2009 by the Ecological Society of America.

  10. Russian Literature and Chinese Literature in 20th Century%俄苏文学与20世纪中国文学

    樊星

    2001-01-01

    本文通过对20世纪中国作家接受俄苏文学影响的历程的 勾勒,揭示了俄苏文学的道德感、抒情风格在塑造中国文学现代品格中发挥的重要作用。同 时,论证了中国作家在兼收并蓄世界文学丰富成就的过程中显示出的超越性,并指出了中国 文学与俄苏文学的差距。%The paper shows that the Russian literature greatly influences the Chinese write rs in the 20th century and plays an important part in shaping the modern Chinese literatu re with its sense of morality and lyric style. It also reveals that Chinese lite ratur has overpassed Russian literature in the course of taking in the rich achi evements of world literature and points out the distance between C hinese literature and Russian literature.

  11. Risk communication and the transformations in the meta narrative of the nuclear field in the 20th and 21st centuries

    The meta narrative of the nuclear field was influenced in the beginning by the perspectives of economic prosperity and the possibility of diversifying to alternative sources of power. However, it has been transformed throughout the 20th and the early 21st centuries by the collective memory and micro narratives of the nuclear bombs during the II World War and the nuclear or radiologic incidents of Three Mile Island, in 1979, Chernobyl, 1986, Goiania, 1987, and Fukushima, 2011. The most recent occurrence made countries like France and Germany, which depend a great deal on nuclear power supply, to suspend their nuclear programs, although having to retake them afterwards due to the impossibility of getting new sources of energy in a short period of time. All that attracted negative attention to the field and severely impacted the perception of risk by the society. This paper observes the future of the meta narrative in such area will be based in the influence of other national and supranational risk communication narratives around security, pollution, environment and economy. The discussion is based on theories by researchers such as Andreas Huyssen, Carlo Ginzburg, Lorenzo Negri, Maurice Halbwachs, Max Weber, Pedro Fernando Bendassolli, Peter Sandman, Roland Barthes, Ulrick Beck and Walter Benjamin. (author)

  12. Major 20th century changes of carbonaceous aerosol components (EC, WinOC, DOC, HULIS, carboxylic acids, and cellulose) derived from Alpine ice cores

    Legrand, M.; Preunkert, S.; Schock, M.; Cerqueira, M.; Kasper-Giebl, A.; Afonso, J.; Pio, C.; GelencséR, A.; Dombrowski-Etchevers, I.

    2007-12-01

    An extended array of carbonaceous species including elemental carbon (EC), water insoluble organic carbon (WinOC) as well as dissolved organic carbon (DOC), humic-like substances (HULIS), and single organic compounds like carboxylic acids, levoglucosan, and cellulose was investigated for the first time in Alpine snow deposits. These investigations were done on selected discrete ice cores sections extracted from Mount Rosa and Mount Blanc glaciers covering the 20th century and extending back to previous centuries. Here we focus on major changes in summer ice layers. Among carbonaceous components, EC reveals an outstanding increase with a sharp summer increase after World War II. This result is discussed against available past EC emission inventories in Europe which are thought to be mainly driven by emissions from road transport and residential sector. The long-term trend of organic carbon (OC) aerosol preserved in ice, WinOC as well as water soluble organic carbon (WSOC), was successfully reconstructed using the suitable array of organic compounds we investigated in this study. It is shown that the level of OC preserved in ice has increased by a factor of 2 after 1950 likely as a result of the enhancement of the oxidative capacity of the atmosphere over the last decades producing more secondary organic atmospheric aerosol from biogenic gaseous precursors.

  13. Ecological view of the Czechoslovak power engineering at the end of 20th century

    Formulation of the Czechoslovak power policy must proceed from the fact that the power consumption per unit gross domestic product is about twice as high in Czechoslovakia than in industrial countries; the per capita consumption of primary power sources is also higher while the total power consumption in households is lower. Sulfur dioxide and carbon dioxide emissions per unit gross domestic product are high; the CO2 emissions are most contributed to by the industry while traffic contributes a minor portion. Natural gas and hydroelectric energy do not hold much promise as a remedy in a short period of time. Energy savings can be of much more help in the efforts to reduce the adverse environmental impacts of power industry. The development of nuclear power is facing several problems. For instance, the present uranium mining costs are higher than the world price and moreover, chemical leaching is a technology far from wasteless. Spent fuel can no more be sent to the USSR free of charge. Financial requirements increase and, in addition, high-level radioactive waste will have to be stored in Czechoslovakia. The following provisions can reduce the adverse environmental impacts of the Czechoslovak power industry: increasing the efficiency of the use of primary energy sources; reducing substantially the burning of coal in local furnaces and replacing it with combined electricity-and-heat generation; installing desulfurization and denitration facilities at large sources. (Z.S.). 1 tab., 9 figs., 12 refs

  14. Energy options from the 20th Century: Comparing Conventional and Nuclear Energy from a Sustainable Standpoint

    Eric Ndeh Mboumien Ngang

    2012-12-01

    Full Text Available Different Energy options have been the driving force for the world economy with an evolution in types and sources. Decades ago choosing what energy option to use did not call for much debate as issues of sustainability, pressure on our environment, and our climate were not a major concern. However today, humans have to grapple with these current global challenges especially those exacerbated by our current sources of energy. The review article argues that science and sustainability thinking should be the basis for making the choice about what energy option is suitable for our era. It proposes that a more fruitful discourse should follow from a dialogue that puts in place the set of sustainability indicators and evaluating the suitability of the options for our era in that context. Focusing on two energy options; conventional and nuclear energy; the review compares them based on a set of sustainability indicators including, but not limited to, the environment, economics, ethics, expertise requirements, technical information, health, safety, uncertainty and government funding. In trying to answer the question Unsustainable conventional energy sources, is nuclear energy similar?, the review concludes that despite the demerits of nuclear energy, it is the solution to meet the world’s growing energy needs and to reverse the impending threat posed by climate change if research and development efforts in the sector are accelerated.

  15. From Modern Push-Button Hospital-beds to 20th Century Mechatronic Beds: A Review

    Ghersi, I.; Mariño, M.; Miralles, M. T.

    2016-04-01

    The aim of this work is to present the different aspects of modern high complexity electric beds of the period 1940 until 2000 exclusively. The chronology of the product has been strictly divided into three big stages: electric and semi-electric beds (until the 90’s), mechatronic beds (90’s until 2000) and, mechatronic intelligent beds of the last 15 years. The latter are not considered in this work due to the extension for its analysis. The justification for classifying the product is presented under the concepts of medical, assistive and mobility devices. Relevant aspects of common immobility problems of the different types of patients for which the beds are mainly addressed are shown in detail. The basic functioning of the patient’s movement generator and the implementation of actuators, together with IT programs, specific accessories and connectivity means and network-communication shown in this work, were those that gave origin to current mechatronic beds. We present the historical evolution of high complexity electric beds by illustrating cases extracted from a meticulous time line, based on patents, inventions and publications in newspapers and magazines of the world. The criteria adopted to evaluate the innovation were: characteristics of controls; accessories (mattresses, lighting, siderails, etc.), aesthetic and morphologic properties and outstanding functionalities.

  16. Effects of breeding activity on durum wheat traits breed in Italy during the 20th century

    Pasquale De Vita

    Full Text Available Italy is the first world producer of pasta from durum wheat (Triticum durum Desf. and an intense breeding activity has been conducted over the last century to support the long tradition of pasta making. This manuscript reviews the results achieved through the Italian breeding programs over last century. The analysis of data allows to appreciate the selective pressure imposed by the breeders on plant height and phenology to select cultivars well adapted to the Italian semi-arid conditions, where early maturity allows to escape the drought season. The annual genetic gain in terms of yield ranged from 17 to 24.6 kg ha-1 year-1 and it was most clearly associated with a higher kernels number m-2 indicating a larger grain-sink size and a higher number of spikes m-2. Regarding the quality traits, the grain protein concentration showed a decreasing trend over time of release of about 0.02% per year, confirming the negative relationship with grain yield.The progressive incorporation into recent cultivars of favourable alleles (7+8 glutenin subunit composition coding for superior quality subunits reflects the improvement in pasta making quality of the recent genotypes.

  17. Real Style: Riegl and Early 20th Century Central European Art

    Kimberly A. Smith

    2011-12-01

    Full Text Available Originally published in Centropa: Journal of Central European Art and Architecture 5, n. 1 (January 2005: 16-25. Kimberly A. Smith discusses the ways in which the understanding of style was articulated by intellectuals working in the late nineteenth century, primarily in Germany and Austria, and the epistemological repercussions of this shift in thinking for both the theory and practice of central European art in the years before World War I. Smith focuses in particular on the writings of Alois Riegl, in which this approach to thinking about style came to its most influential fruition, and proposes that Riegl’s conception of form had implications for artistic practice. Riegl’s methodological understanding of artistic form drew connections between morphological types and perceptions of reality, thereby altering the ways in which artists could conceive of aesthetic authenticity. Style itself could be seen as the harbinger of truth, opening up the possibility that any style might offer a genuine revelation of the real. Yet as Smith shows, the Rieglian theory of meaningful form may have encouraged an artistic pluralism that subverted the very Kunstwollen theory of historically unified style from which it sprung.

  18. Britain Social Novel at the End of the 20th Century

    Novikova V. G.

    2015-01-01

    Full Text Available The purpose of this paper is to reveal the peculiarities of the social novel genre content, the traditions of which are rooted in the modern era and transformations under the influence of radical changes in the type of thinking in the postmodern outlook. Postmodern fictional way of thinking is based on the image of the world as a combination of multiplying realities. As the result, the social reality started being perceived as a construction in which complicated-by-intelligence values disappear while elementary routine constructions multiply. Epistemological uncertainty also influenced this result. In conditions of “trading reality” the intellectuals lose their positions, traditional values destruct, humanities knowledge fades as it doesn’t have any certain market cost, the dream about the social equality vanishes together with the idea of socialism itself. Discourse of possession can not be combined with the discourse of moral. New positions are obtained by the representatives of different subcultures that become the centre of amorphous mass. The modern British social novel represents the social changes, which have occurred owing to the changes of the paradigm of thinking. The absence of socially significant landmarks deprives the British of an impulse to socially significant actions, allows manipulations with masses. The absence of national idea is connected with the painful search of the national identity, which is believed to be the main point in modern literary process.

  19. Croatian Chemistry in the 20th Century. III. From the Establishment of the Republic of Croatia on June 25th, 1991 to the End of the Century

    Trinajstić, N.; Kaštelan-Macan (ur.), M.; Paušek-Baždar, S.; Vančik, H.

    2012-01-01

    In this last part of our attempt to present briefly the history of Croatian chemistry in the 20th century, the development of chemistry in the Republic of Croatia, established as an independent state on June 25th, 1991 is outlined. The last 10 years of the 20th century are characterized first by defense of the country by arms until 1995, and then until the end of century, and after the constructive building of the foundations of Croatia....

  20. Proceedings of the 20th particles and nuclei international conference PANIC2014

    different fields. The program was prepared in consultation with the international advisory committee (IAC). In the plenary sessions, 26 presentations of invited lectures and results from large experimental collaborations were given, while in the parallel sessions, a total of 220 talks were presented. The programme was completed by 28 posters, for which a poster contest was held. The three winning posters received a price and were presented in a dedicated plenary session. DESY is one of the worlds leading accelerator centres. DESY researchers use the large-scale facilities at DESY and elsewhere to explore the microcosm in all its variety: high-energy particle collisions are used in elementary particle and astroparticle physics to investigate from the properties and interactions of elementary particles, and the brilliant light of state-of-the-art synchrotron sources and laser facilities is employed to study e.g.the behaviour of new types of nanomaterials or biomolecular processes that are essential to life. DESY scientists are involved in many international projects such as the LHC (experiments ATLAS and CMS), SuperKEKB (experiment Belle II), CTA and IceCube. DESY is also a central player in the preparatory work towards the next large-scale facility of particle physics, an e+e linear collider. The particle physics and detector development group of Hamburg University studies the constituents of matter and their fundamental interactions using particle collisions at highest energies. The group is involved in detector construction, operation and data analysis of the Compact Muon Solenoid (CMS) experiment at the LHC. Research is done in several important aspects of particle physics using CMS data, from the study of the properties and production mechanisms of the top quark, the heaviest particle known today, to the search for new even heavier particles predicted by physics theories describing phenomena beyond the standard model of particle physics, such as supersymmetry.

  1. Proceedings of the 20th particles and nuclei international conference PANIC2014

    Schmidt, Alexander; Sander, Christian (eds.)

    2015-03-15

    different fields. The program was prepared in consultation with the international advisory committee (IAC). In the plenary sessions, 26 presentations of invited lectures and results from large experimental collaborations were given, while in the parallel sessions, a total of 220 talks were presented. The programme was completed by 28 posters, for which a poster contest was held. The three winning posters received a price and were presented in a dedicated plenary session. DESY is one of the worlds leading accelerator centres. DESY researchers use the large-scale facilities at DESY and elsewhere to explore the microcosm in all its variety: high-energy particle collisions are used in elementary particle and astroparticle physics to investigate from the properties and interactions of elementary particles, and the brilliant light of state-of-the-art synchrotron sources and laser facilities is employed to study e.g.the behaviour of new types of nanomaterials or biomolecular processes that are essential to life. DESY scientists are involved in many international projects such as the LHC (experiments ATLAS and CMS), SuperKEKB (experiment Belle II), CTA and IceCube. DESY is also a central player in the preparatory work towards the next large-scale facility of particle physics, an e+e linear collider. The particle physics and detector development group of Hamburg University studies the constituents of matter and their fundamental interactions using particle collisions at highest energies. The group is involved in detector construction, operation and data analysis of the Compact Muon Solenoid (CMS) experiment at the LHC. Research is done in several important aspects of particle physics using CMS data, from the study of the properties and production mechanisms of the top quark, the heaviest particle known today, to the search for new even heavier particles predicted by physics theories describing phenomena beyond the standard model of particle physics, such as supersymmetry.

  2. Two historians in front of the economic crisis of 2007-2008: Hobsbawm and Judt between Marxism and the legacies of 20th century

    Bresciani Marco

    2016-01-01

    Full Text Available How did intellectuals react to the economic crisis of 2007-2008 and its long-term backlash? What did they learn from the main twentieth-century political and social experiences, in order to make a new sense of the traditional cultures of the Left? In order to answer these crucial issues, this proposal will analyze the paths of the well-known historians E. Hobsbawm and T. Judt and their apparently similar, but actually different reactions to the crisis. First, I will focus on their respective books: How to Change the World (2011 and Ill Fares the Land (2010. On the one hand, Hobsbawm’s critical approach to the post-1991 world, shaped by his lifelong fidelity to Marxism and his persistent sympathy for the Russian Revolution, was connected to his catastrophic vision of the end of the both conflicting and collaborative dynamics between capitalism and socialism. On the other hand, Judt’s re-thinking of the social-democratic tradition, compelled by the global transformations of the social question, was inspired by his connections with the East Central European dissidents’ anti-totalitarian liberalism and by his critical approach to the engagement of the French intellectuals. Second, I will investigate their different interpretations of the „Golden Age“ of post-1945 Europe (with special regard to the long-term impact of the crisis of 1929 and to the influence of Soviet communism and of the causes of its crisis. Third, I will show how, in spite of their common reference to Marx, late Hobsbawm’s and Judt’s historical visions - respectively combined with determinism and moralism - provide opposite ways of coping with the legacies of the 20th century and of criticizing the language of neoliberal economy within the Left.

  3. Geologic and hydrologic hazards in glacierized basins in North America resulting from 19th and 20th century global warming

    O'Connor, J. E.; Costa, J.E.

    1993-01-01

    Alpine glacier retreat resulting from global warming since the close of the Little Ice Age in the 19th and 20th centuries has increased the risk and incidence of some geologic and hydrologic hazards in mountainous alpine regions of North America. Abundant loose debris in recently deglaciated areas at the toe of alpine glaciers provides a ready source of sediment during rainstorms or outburst floods. This sediment can cause debris flows and sedimentation problems in downstream areas. Moraines built during the Little Ice Age can trap and store large volumes of water. These natural dams have no controlled outlets and can fail without warning. Many glacier-dammed lakes have grown in size, while ice dams have shrunk, resulting in greater risks of ice-dam failure. The retreat and thinning of glacier ice has left oversteepened, unstable valley walls and has led to increased incidence of rock and debris avalanches. ?? 1993 Kluwer Academic Publishers.

  4. Evaluation of Continental Precipitation in 20th-Century Climate Simulations: The Utility of Multi-Model Statistics

    Phillips, T J; Gleckler, P J

    2005-11-01

    At the request of the Intergovernmental Panel on Climate Change (IPCC), simulations of 20th-century climate have been performed recently with some 20 global coupled ocean-atmosphere models. In view of its central importance for biological and socio-economic systems, model-simulated continental precipitation is evaluated relative to three observational estimates at both global and regional scales. Many models are found to display systematic biases, deviating markedly from the observed spatial variability and amplitude/phase of the seasonal cycle. However, the point-wise ensemble mean of all the models usually shows better statistical agreement with the observations than does any single model. Deficiencies of current models that may be responsible for the simulated precipitation biases as well as possible reasons for the improved estimate afforded by the multi-model ensemble mean are discussed. Implications of these results for water-resource managers also are briefly addressed.

  5. Using atmospheric CO2 data to assess a simplified carbon-climate simulation for the 20th century

    The CSIRO biosphere model has been coupled to an atmosphere model and a simulation has been performed for the 20th century. Both biosphere and atmosphere are forced with global CO2 concentration and the atmosphere is also forced with prescribed sea surface temperatures. The simulation follows the C4MIP Phase 1 protocol. We assess the model simulation using atmospheric CO2 data. Mauna Loa growth rate is well simulated from 1980 but overestimated before that time. The interannual variations in growth rate are reasonably reproduced. Seasonal cycles are underestimated in northern mid-latitudes and are out of phase in the southern hemisphere. The north-south gradient of annual mean CO2 is substantially overestimated due to a northern hemisphere net biosphere source and a southern tropical sink. Diurnal cycles at three northern hemisphere locations are larger than observed in many months, most likely due to larger respiration than observed

  6. Precipitation changes in wet and dry seasons over the 20th century simulated by two versions of the FGOALS model

    Ma, Shuangmei; Zhou, Tianjun

    2015-06-01

    Seasonal precipitation changes over the globe during the 20th century simulated by two versions of the Flexible Global Ocean-Atmosphere-Land System (FGOALS) model are assessed. The two model versions differ in terms of their AGCM component, but the remaining parts of the system are almost identical. Both models reasonably reproduce the mean-state features of the timings of the wet and dry seasons and related precipitation amounts, with pattern correlation coefficients of 0.65-0.84 with observations. Globally averaged seasonal precipitation changes are analyzed. The results show that wet seasons get wetter and the annual range (precipitation difference between wet and dry seasons) increases during the 20th century in the two models, with positive trends covering most parts of the globe, which is consistent with observations. However, both models show a moistening dry season, which is opposite to observations. Analysis of the globally averaged moisture budget in the historical climate simulations of the two models shows little change in the horizontal moisture advection in both the wet and dry seasons. The globally averaged seasonal precipitation changes are mainly dominated by the changes in evaporation and vertical moisture advection. Evaporation and vertical moisture advection combine to make wet seasons wetter and enhance the annual range. In the dry season, the opposite change of evaporation and vertical moisture advection leads to an insignificant change in precipitation. Vertical moisture advection is the most important term that determines the changes in precipitation, wherein the thermodynamic component is dominant and the dynamic component tends to offset the effect of the thermodynamic component.

  7. Modeling Arctic Ocean heat transport and warming episodes in the 20th century caused by the intruding Atlantic Water

    WANG Jia; JIN Mei-bing; Jun Takahashi; Tatsuo Suzuki; Igor V Polyakov; Kohei Mizobata; Moto Ikeda; Fancois J.Saucier; Markus Meier

    2008-01-01

    This study investigates the Arctic Ocean warming episodes in the 20th century using both a high-resolution coupled global climate model and historical observations. The model, with no flux adjustment, reproduces well the Atlantic Water core temperature (AWCT) in the Arctic Ocean and shows that four largest decadalscale warming episodes occurred in the 1930's, 70s, 80s, and 90s, in agreement with the hydrographic observational data. The difference is that there was no pre-warming prior to the 1930s episode, while there were two pre-warming episodes in the 1970s and 80s prior to the 1990s, leading the 1990s into the largest and prolonged warming in the 20th century. Over the last century, the simulated heat transport via Fram Strait and the Barents Sea was estimated to be, on average, 31.32 TW and 14.82TW, respectively, while the Bering Strait also provides 15.94 TW heat into the western Arctic Ocean. Heat transport into the Arctic Ocean by the Atlantic Water via Fram Strait and the Barents Sea correlates significantly with AWCT ( C =0.75 ) at Olag. The modeled North Atlantic Oscillation ( NAO ) index has a significant correlation with the heat transport ( C = 0.37 ). The observed AWCT has a significant correlation with both the modeled AWCT (C =0.49) and the heat transport (C =0.41 ).However, the modeled NAO index does not significantly correlate with either the observed AWCT (C =0.03 ) or modeled AWCT (C = 0. 16) at a zero-lag, indicating that the Arctic climate system is far more complex than expected.

  8. Presence and possible cause of periodicities in 20th-century extreme coastal surge: Belfast Harbour, Northern Ireland

    Orford, Julian; Murdy, Joanne

    2015-10-01

    Identifying 20th-century periodic coastal surge variation is strategic for the 21st-century coastal surge estimates, as surge periodicities may amplify/reduce future MSL enhanced surge forecasts. Extreme coastal surge data from Belfast Harbour (UK) tide gauges are available for 1901-2010 and provide the potential for decadal-plus periodic coastal surge analysis. Annual extreme surge-elevation distributions (sampled every 10-min) are analysed using PCA and cluster analysis to decompose variation within- and between-years to assess similarity of years in terms of Surge Climate Types, and to establish significance of any transitions in Type occurrence over time using non-parametric Markov analysis. Annual extreme surge variation is shown to be periodically organised across the 20th century. Extreme surge magnitude and distribution show a number of significant cyclonic induced multi-annual (2, 3, 5 & 6 years) cycles, as well as dominant multi-decadal (15-25 years) cycles of variation superimposed on an 80 year fluctuation in atmospheric-oceanic variation across the North Atlantic (relative to NAO/AMO interaction). The top 30 extreme surge events show some relationship with NAO per se, given that 80% are associated with westerly dominant atmospheric flows (+ NAO), but there are 20% of the events associated with blocking air massess (- NAO). Although 20% of the top 30 ranked positive surges occurred within the last twenty years, there is no unequivocal evidence of recent acceleration in extreme surge magnitude related to other than the scale of natural periodic variation.

  9. Assessing IPCC AR4 Coupled Model Simulations of Late-20th Century Winter Precipitation Over North America

    McAfee, S. A.; Russell, J. L.

    2008-12-01

    Consistent with a southward bias in zonal winds in eighteen of the Intergovernmental Panel on Climate Change Fourth Assessment (IPCC AR4) simulations of the 20th century, model estimates of stormtrack location tend to cluster south of the observed stormtrack, particularly during March and April. There are two mechanisms by which a southward-displaced stormtrack could increase downstream precipitation. The first is by changing the latitudinal distribution of storms. Second, a southward-displaced stormtrack allows storms to develop over warmer sea surfaces, increasing the amount of water they hold. Although they capture the general structure and seasonality of precipitation over North America quite well, IPCC AR4 coupled model simulations of the late-20th century (1979-1999) typically overestimate winter (November to April) precipitation in western North America in comparison to values from the Global Precipitation Climatology Project version 2 (GPCPv2). While there are multiple controls on precipitation amount and distribution, we suspect that a southward bias in zonal wind speeds contributes to the precipitation bias observed in many of the models included in this study. Many of the models in this study show greater overestimates of precipitation to the south than to the north, consistent with a southward bias in stormtrack position. The generally positive bias in precipitation across western North America seen in many of the models suggests that sea-surface temperature may also play a role. As the modeling community moves toward coupled earth system models with dynamic vegetation, the precipitation bias may become a more significant problem. Vegetation types are typically determined by seasonal patterns in temperature and precipitation. Errors of even 25% in precipitation totals may contribute to significant changes in the simulated vegetation and carbon fluxes, particularly in arid and semi-arid regions like the western United States.

  10. Forced annular variations in the 20th century Intergovernmental Panel on Climate Change Fourth Assessment Report models

    Miller, R. L.; Schmidt, G. A.; Shindell, D. T.

    2006-09-01

    We examine the annular mode within each hemisphere (defined here as the leading empirical orthogonal function and principal component of hemispheric sea level pressure) as simulated by the Intergovernmental Panel on Climate Change Fourth Assessment Report ensembles of coupled ocean-atmosphere models. The simulated annular patterns exhibit a high spatial correlation with the observed patterns during the late 20th century, though the mode represents too large a percentage of total temporal variability within each hemisphere. In response to increasing concentrations of greenhouse gases and tropospheric sulfate aerosols, the multimodel average exhibits a positive annular trend in both hemispheres, with decreasing sea level pressure (SLP) over the pole and a compensating increase in midlatitudes. In the Northern Hemisphere, the trend agrees in sign but is of smaller amplitude than that observed during recent decades. In the Southern Hemisphere, decreasing stratospheric ozone causes an additional reduction in Antarctic surface pressure during the latter half of the 20th century. While annular trends in the multimodel average are positive, individual model trends vary widely. Not all models predict a decrease in high-latitude SLP, although no model exhibits an increase. As a test of the models' annular sensitivity, the response to volcanic aerosols in the stratosphere is calculated during the winter following five major tropical eruptions. The observed response exhibits coupling between stratospheric anomalies and annular variations at the surface, similar to the coupling between these levels simulated elsewhere by models in response to increasing GHG concentration. The multimodel average is of the correct sign but significantly smaller in magnitude than the observed annular anomaly. This suggests that the models underestimate the coupling of stratospheric changes to annular variations at the surface and may not simulate the full response to increasing GHGs.

  11. Trends in fire emissions over the 20th century as simulated by a fire model within CLM-CN

    Kloster, S.; Randerson, J. T.; Mahowald, N. M.; Thornton, P. E.

    2009-12-01

    Fire is an important Earth System process, which impacts climate via multiply processes, including atmospheric chemistry, aerosols, land surface properties and the carbon cycle. For recent fires, we have the capacity to observe global fire activity from space. However, historical information on fires is still very incomplete and little is known about the single driving forces of global fire activity. Here we present results from a fire model included in CLM-CN based on the work by Arora and Boer (2005) extended by an explicit parametrization of human ignition and fire suppression as a function of population density. In addition to natural fires we also take into account deforestation fires. We evaluated the model against contemporary satellite fire records and applied it in transient simulations running from 1798 to 2004. Several sensitivity experiments were performed to disentangle the importance of single driving forces impacting fire emissions, such as land use change and wood harvest, changes in population density and changes in climate. Globally we find decreasing fire emissions caused by land use change and wood harvest over the 20th century. The increase in population density over the last century leads to an increase in fire emissions. However, when we also take into account fire suppression, only little change in fire emissions on the global scale is found. Climate change over the last three decades leads to slightly increasing fire emissions. However, larger differences are found on the regional scale. Combining all single driving forces we find decreasing carbon emissions between 1900 and 1970 followed by a pronounced increase in the last three decades on the global scale. Thereby, the importance of the single driving forces for the simulated trend over the 20th century varies considerably for different regions.

  12. Intrinsic Versus Forced Variation in Coupled Climate Model Simulations of the Arctic Temperature during the 20th Century

    Wang, M.; Overland, J. E.; Kattsov, V.; Walsh, J. E.; Zhang, X.

    2010-12-01

    The two multi-year periods of winter time Arctic-wide (60-90°N) warm temperature anomalies (> 0.7°C) in the 20th century have recently received considerable attention in the scientific community. Reproducing these multi-year anomalies in coupled climate models, which constitutes CMIP3 archive, is a critical test to understand processes responsible for and increasing the confidence in the IPCC model projections of Arctic climate system changes. Our study evaluated all available realizations generated by CMIP3 models made available for the IPCC 4th Assessment (AR4), including 20th century simulations (20C3M) and corresponding control runs (PIcntr). Warm anomalies in the Arctic during the last two decades are reproduced by all ensemble members, with considerable variability in amplitude among models. In contrast only eight models, among which there are at least one realization in each model, generated warm anomalies with comparable amplitude (but not the timing) of the observed early-century warm event. The early-century warm events in all the models have decadal timescales, while that of the observed was multidecadal. The variance of the control runs in nine models was comparable with the variance in the observations. The random timing of early-century warm anomalies in 20C3M simulations and the similar variance of the control runs in about half of the models suggest that the observed mid-century warm period is consistent with intrinsic climate variability. Our results support selecting a subset of GCMs when making projections for future climate by using performance criteria based on comparison with retrospective data, characteristics of variability as well as means.

  13. Climate and carbon cycle variations in the 20th and 21st centuries in a model of intermediate complexity

    Eliseev, A. V.; Mokhov, I. I.; Karpenko, A. A.

    2007-02-01

    The climate model of intermediate complexity developed at the Oboukhov Institute of Atmospheric Physics, Russian Academy of Sciences (IAP RAS CM), has been supplemented by a zero-dimensional carbon cycle model. With the carbon dioxide emissions prescribed for the second half of the 19th century and for the 20th century, the model satisfactorily reproduces characteristics of the carbon cycle over this period. However, with continued anthropogenic CO2 emissions (SRES scenarios A1B, A2, B1, and B2), the climate-carbon cycle feedback in the model leads to an additional atmospheric CO2 increase (in comparison with the case where the influence of climate changes on the carbon exchange between the atmosphere and the underlying surface is disregarded). This additional increase is varied in the range 67 90 ppmv depending on the scenario and is mainly due to the dynamics of soil carbon storage. The climate-carbon cycle feedback parameter varies nonmonotonically with time. Positions of its extremes separate characteristic periods of the change in the intensity of anthropogenic emissions and of climate variations. By the end of the 21st century, depending on the emission scenario, the carbon dioxide concentration is expected to increase to 615 875 ppmv and the global temperature will rise by 2.4 3.4 K relative to the preindustrial value. In the 20th 21st centuries, a general growth of the buildup of carbon dioxide in the atmosphere and ocean and its reduction in terrestrial ecosystems can be expected. In general, by the end of the 21st century, the more aggressive emission scenarios are characterized by a smaller climate-carbon cycle feedback parameter, a lower sensitivity of climate to a single increase in the atmospheric concentration of carbon dioxide, a larger fraction of anthropogenic emissions stored in the atmosphere and the ocean, and a smaller fraction of emissions in terrestrial ecosystems.

  14. Pacific subtropical cell variability in coupled climate model simulations of the late 19th 20th century

    Solomon, Amy; Zhang, Dongxiao

    Observational studies of the Pacific basin since the 1950s have demonstrated that a decrease (increase) in tropical Pacific sea surface temperatures (SSTs) is significantly correlated with a spin-up (slow-down) of the Pacific Subtropical Cells (STCs). STCs are shallow wind-driven overturning circulations that provide a pathway by which extratropical atmospheric variability can impact the equatorial Pacific thermocline and, through upwelling in the eastern equatorial Pacific, tropical Pacific SSTs. Recent studies have shown that this observed relationship between SSTs and STCs is absent in coupled climate model simulations of the late 19th-20th centuries. In this paper we investigate what causes this relationship to breakdown and to what extent this limits the models' ability to simulate observed climate change in the equatorial Pacific since the late 19th century. To provide insight into these questions we first show that the NCAR Community Climate System Model's simulation of observed climate change since the 1970s has a robust signal in the equatorial Pacific that bears a close resemblance to observations. Strikingly, absent is a robust signal in the equatorial thermocline. Our results suggest that the coupled model may be reproducing the observed local ocean response to changes in forcing but inadequately reproducing the remote STC-forcing of the tropical Pacific due to the underestimate of extratropical winds that force these ocean circulations. These conclusions are found to be valid in five different coupled climate model simulations of the late 19th-20th centuries (CCSM3, GISS EH, GFDL CM2.1, CSIRO-Mk3, and HadCM3).

  15. EDITORIAL: Selected papers from the 20th Micromechanics Europe Workshop (MME 09) (Toulouse, France, 20-22 September 2009) Selected papers from the 20th Micromechanics Europe Workshop (MME 09) (Toulouse, France, 20-22 September 2009)

    Pons, Patrick

    2010-06-01

    This special section of the Journal of Micromechanics and Microengineering is devoted to the 20th European Workshop on Micromechanics (MME 2009), which was held in Toulouse, France, 20-22 September 2009. The MME workshop series started in 1989 in Twente and was the first European event created in the field of micro machining technology for developing micro components, micro sensors, micro actuators, and micro systems. Over the last two decades the MEMS community has grown considerably, and the MME workshops have sustained this progress through annual meetings all around Europe: Twente (The Netherlands, 1989), Berlin (Germany, 1990), Leuven (Belgium, 1992), Neuchatel (Switzerland, 1993), Pisa (Italy, 1994), Copenhagen (Denmark, 1995), Barcelona (Spain, 1996), Southampton (United Kingdom, 1997), Ulvik (Norway, 1998), Gif-sur-Yvette (France, 1999), Uppsala (Sweden, 2000), Cork (Ireland, 2001), Sinaia (Romania, 2002), Delft (The Netherlands, 2003), Leuven (Belgium, 2004), Goteborg (Sweden, 2005), Southampton (United Kingdom, 2006), Guimaraes (Portugal, 2007) and Aachen (Germany, 2008). For twenty years, MME conferences have provided an excellent opportunity to bring together many, predominantly European, scientists and engineers to present and discuss the latest developments in this field. For the 20th anniversary of the MicroMechanics Europe Workshop, 115 papers from 23 countries were submitted. Selected contributions were presented during four poster sessions, including short oral presentations. A very interesting feature of the MME workshops is their ability to promote young researchers. Six invited speakers from research centres and industry also gave an overview on advanced technological, characterization and simulation tools. The two day workshop was attended by 185 delegates from 22 countries all over Europe, and from Japan, Taiwan, USA and Mexico. On behalf of the MME 2009 Program Committee, I would like to express my sincere gratitude to all authors of

  16. 20世纪中国文学中的 "风水" 叙事%The Feng Shui Narration in the 20 th Century Chinese Literature

    陈旋波

    2015-01-01

    近代以来, 作为中国传统文化一脉的风水观因其缺乏 "真确的知识" 而受到摒弃和批判, 五四以来风水一直受到科学理性、 唯物主义主导的文学思潮的攻伐. 随后, 20世纪中国社会及文化思潮发生了巨大的变迁,风水在文学中的境遇也因时而易, 这不但反映了时代思潮的嬗变, 还纠结着20世纪纷繁复杂的政治、 哲学及美学取向. 尤其是随着90年代中国文化语境的变迁, 风水文化逐渐浮现出其反思现代性的 "复魅" 特质.%In modern times, Feng Shui, which has been inherent to traditional Chinese culture, has been denounced and defamed as lack of scientific and truthful knowledge, and has long been criticized by the rational and materialistic school of literature since the May Fourth Movement. In the 20th century, as the Chinese society and ideology is undergoing dramatic changes, Feng Shui varies from time to time in literature, which reflects not only the transformation of ideology but also the complication of politics, philosophy and aesthetics. Particularly in the 1990s, as the cultural environment in China has greatly changed, the culture of Feng Shui tends to be charged with the nature of "revitalizing the enchantment of the world", i. e. reflections upon modernism.

  17. Migrations from the Gora region at the end of the 20th and the beginning of the 21st century

    Đorđević-Crnobrnja Jadranka

    2014-01-01

    Full Text Available In this paper I will analyze economic and political migration in the Gora region at the end of the 20th and in the first decade of the 21st century. It is my intent to consider and explain their cause and their intensity and scope. In short, I view the socioeconomic and political dimension of these migrations from an ethnological and anthropological point of view. The economic and political migrations from the Gora region at the end of the 20th and the beginning of the 21st century represent the continuation of earlier migrations, albeit more intensive and larger in scope (whole families are migrating. There migrations can be viewed as the effects of political changes in Kosovo, as well as the socioeconomic crisis of the 1990’s. There are no fixed boundaries between these types of migrations, and the only truly stand out examples are the cases in which people migrated for safety reasons. A certain type of migration can be identified based on the terminology used by the interlocutors. I have encountered the terms “banishment” and “displacement” in the narrative discourse of my interlocutors. These terms are used to describe the migrations from Gora during the 1999 war, as well as immediately after. The differences between economic and political migrants can be gouged from other factors such as going to Gora during vacations and holidays as well as investing money into real-estate in the region. Individuals who emigrated from Gora because they feared for their and the loves of their families go to Gora rarely (to attend funerals for example and are not currently thinking of investing unlike those who had left Gora as economic migrants. There are no differences when it comes to where people migrate to for different reasons. Places of migration can, however, be indicative of the form of migration in the sense of whether people migrated to a foreign country or not. One can turn into the other due to the changing of state borders. Thus

  18. Editorial: Special issue dedicated to Gabor Somorjai's 80th birthday

    2016-06-01

    This special issue of Surface Science has been prepared to honor Professor Gabor A. Somorjai on the occasion of his 80th birthday. Professor Somorjai was born on May 4, 1935 in Budapest, Hungary. In 1953 he enrolled as a chemical engineering student at the Technical University of Budapest. Gabor was an active participant in the Hungarian Revolution of 1956. When the Soviet military crushed the revolution, he had to leave the country by walking across the border with his sister and his future wife. After immigrating to the USA in 1957, he applied to begin graduate studies and was accepted at the University of California, Berkeley. Gabor received a PhD in Chemistry in 1960, only three years later. Following a short sojourn at IBM, he returned to Berkeley in 1964 to take up a faculty position in the Department of Chemistry and the Lawrence Berkeley National Laboratory, which he still holds today. For the interested reader, more can be learned about Gabor's fascinating life in his autobiography, "An American Scientist: The Autobiography of Gabor A. Somorjai.

  19. An 80th birthday celebration for the Ericsons

    CERN Bulletin

    2010-01-01

    A Chinese proverb says that happiness is when friends coming from far and away meet and talk to each other. These wise words could very well be used to sum up the celebrations in honour of the 80th birthdays of Magda and Torleif Ericson, a couple in the normal sense of the word and often also in the field of physics. Torleif joined CERN's Theory Division in 1960, initially to work at the intersection of nuclear and particle physics at the Synchrocyclotron, and retired in 1995.   During the celebratory event on 17 September, speakers reviewed the depth and breadth of the contributions which both Torleif and Magda have made to theoretical physics in general and to nuclear physics in particular. José Bernabeu, Guy Chanfray, Wolfram Wiese, Achim Richter and Anthony Thomas all covered the considerable research that has been stimulated by the Ericson-Ericson correlation(s) over the past 50 years. A concert by the violinist Jean-Philippe Audoli and the pianist Blandine Eynaud and an informal...

  20. The problems of national history in the school literature of the 18th - beginning of the 20th centuries

    Abramkin O. S.

    2015-01-01

    Full Text Available The analysis of historical literature allows to consider profoundly the development of national culture and science of the 18th-first half of the 20th centuries and the formation and change of different historical concepts. With the analysis of historical periods that are highlighted in the research, general trends in the changing of paradigms about Russian historical development were concluded, which were translated to mass historical consciousness from the beginning of the 18th century up to 1917. The periods were closely connected with the specific political, historical and economic changes in Russian Empire and with the dominance of certain textbooks during this time. The books were selected because of a number of factors: their inclusion to the school curriculum, the number of publications (10 and more, the equal number of textbooks devoted to different historical periods. For the analysis were used 19 textbooks, schoolbooks for different courses of secondary schools and primary schools. All the sources of educational literature were grouped into two concepts - officially-state (patriotic and the liberal. Each publication was highlighted the dominant concept as a base for the whole textbook. There is also a characteristic of the concepts that are presented chronologically. The analysis represents school history books as an important source for the formation of state policy in the representing of Russian history, and, that is more important, for creation of the concept of the state of Russian history.

  1. Sediment accumulation in San Leandro Bay, Alameda County, California, during the 20th century - A preliminary report

    Major changes made in the configuration of San Leandro Bay, Alameda County, California, during the 20th century have caused rapid sedimentation within parts of the Bay. Comparison of bathymetric surveys indicates that sedimentation in the vicinity of the San Leandro Bay channel averaged 0.7 cm/annum between 1856 and 1984. Lead-210 data collected at four shallow water sites east of the San Leandro Bay channel indicated that sedimentation rates have averaged between 0.06 and 0.28 cm/annum. Because bioturbation of bottom sediments cannot be discounted, better definition of this range in sedimentation rates would require measuring the activity of lead-210 on incoming sediments. In addition to sediment deposited in the vicinity of the San Leandro Bay channel and open, shallow areas to the east, 850,740 cu m of sediment was deposited between 1948 and 1983 in an area dredged at the mouth of San Leandro Creek. All available data indicate that between 1,213,000 and 1,364,000 cu m of sediment was deposited in San Leandro Bay between 1948 and 1983. Sediment yield data from an adjacent drainage basin, when combined with inventories of lead-210 and cesium-137, indicate that most of the sediment deposited in San Leandro Bay is coming from resuspension of bottom sediments or from erosion of marshes or shorelines of San Leandro or San Francisco Bay. 31 refs., 7 figs., 4 tabs

  2. The death of "Till death us do part": the transformation of pair-bonding in the 20th century.

    Pinsof, William M

    2002-01-01

    During the last half of the 20th century within Western civilization, for the first time in human history, divorce replaced death as the most common endpoint of marriage. In this article I explore the history of this death-to-divorce transition, the forces associated with the transition, and what the transition may have revealed about the human capacity for monogamous, lifelong pair-bonding. The impact and consequences of the transition for the generations that came of age during it and immediately afterwards are examined, with particular attention to the emergence of new, alternative pair-bonding structures such as cohabitation and nonmarital co-parenting. The article highlights the inability of the dichotomous marriage-versus-being-single paradigm to encompass the new pair-bonding structures and the normalizing of divorce. Precepts for a new, more encompassing, veridical and humane pair-bonding paradigm are presented, and some of their implications for social policy, family law, social science, and couple and family therapy are elaborated. PMID:12140958

  3. Raman analysis of complex pigment mixtures in 20th century metal knight shields of the Order of the Elephant.

    Lauridsen, Clara Bratt; Sanyova, Jana; Simonsen, Kim Pilkjær

    2015-11-01

    The pigment composition of six painted metal knight shields of the Order of the Elephant dating from the second half of the 20th century belonging to the Danish royal collection were studied using Raman microscopy. By focusing a 785 nm laser with a 50× objective on particles in paint cross sections, it was possible to identify the following 20 compounds: hematite, goethite, chrome red/orange, chrome yellow, zinc chrome yellow, carbon black, toluidine red PR3, chlorinated para red PR4, dinitroaniline orange PO5, phthalocyanine blue PB15, indanthrone blue PB60, ultramarine, Prussian blue, lead white, anatase, rutile, calcium carbonate, barium sulphate, gypsum and dolomite. The components were frequently present in complex pigment mixtures. Additional information was obtained by elemental analysis with scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX) to identify cobalt blue, zinc white and cadmium red, as well as to indicate the presence of zinc white in some pigment mixtures. The study allowed a comparison between the industrially applied preparation layers and the artistic paint layers applied by the heraldic painter. Differences in the choice of paint and pigment types were observed on the earliest knight shields, demonstrating a general delay of industrial materials into artist paints. PMID:26023056

  4. False memory 1/20th of a second later: what the early onset of boundary extension reveals about perception.

    Intraub, Helene; Dickinson, Christopher A

    2008-10-01

    Errors of commission are thought to be caused by heavy memory loads, confusing information, lengthy retention intervals, or some combination of these factors. We report false memory beyond the boundaries of a view, boundary extension, after less than 1/20th of a second. Photographs of scenes were interrupted by a 42-ms or 250-ms mask, 250 ms into viewing, before reappearing or being replaced with a different view (Experiment 1). Postinterruption photographs that were unchanged were rated as closer up than the original views; when the photographs were changed, the same pair of closer-up and wider-angle views was rated as more similar when the closer view was first, rather than second. Thus, observers remembered preinterruption views with extended boundaries. Results were replicated when the interruption included a saccade (Experiment 2). The brevity of these interruptions has implications for visual scanning; it also challenges the traditional distinction between perception and memory. We offer an alternative conceptualization that shows how source monitoring can explain false memory after an interruption briefer than an eyeblink. PMID:19000211

  5. Proceedings of the 20th anniversary conference: Water management in the '90s. A time for innovation

    This proceedings contains papers presented at the 20th anniversary conference of ASCE's Water Resources Planning and Management Division held in Seattle, Washington, May 1-5, 1993. The conference theme is an acknowledgement of the need for water resources professionals to face major challenges in managing diminishing supplies for ever-increasing demands, in protecting valuable watersheds from urban and agricultural pollution, and in building and maintaining critical infrastructure with limited financial resources. The papers in this proceedings reflect a practical, problem-solving focus with emphasis on novel solutions for current and near future challenges. Included are papers from three symposia held as part of the conference: (1) Urban runoff and the Environment, (2) Water Supply and Conservation, and (3) the National Drought Study. Other topics covered include: computer-aided decision support systems, the Endangered Species Act impact on major water systems, international disasters, geographic information systems, global warming, and hydropower planning. Individual papers are processed separately for inclusion in the appropriate data bases

  6. Proceedings of the 20th anniversary conference: Water management in the '90s. A time for innovation

    Hon, K. (ed.)

    1993-01-01

    This proceedings contains papers presented at the 20th anniversary conference of ASCE's Water Resources Planning and Management Division held in Seattle, Washington, May 1-5, 1993. The conference theme is an acknowledgement of the need for water resources professionals to face major challenges in managing diminishing supplies for ever-increasing demands, in protecting valuable watersheds from urban and agricultural pollution, and in building and maintaining critical infrastructure with limited financial resources. The papers in this proceedings reflect a practical, problem-solving focus with emphasis on novel solutions for current and near future challenges. Included are papers from three symposia held as part of the conference: (1) Urban runoff and the Environment, (2) Water Supply and Conservation, and (3) the National Drought Study. Other topics covered include: computer-aided decision support systems, the Endangered Species Act impact on major water systems, international disasters, geographic information systems, global warming, and hydropower planning. Individual papers are processed separately for inclusion in the appropriate data bases.

  7. Time with or without death: Researching death in Serbian ethnology during the second half of the 20th century

    Pavićević Aleksandra

    2008-01-01

    Full Text Available Topics of ethnological research, as well as scientific discourse in general often represent the mirror of social reality. This paper researches the ways in which dealing with death and current ethnological approaches in Serbian ethnology during the second half of the 20th century, reflect the Zeitgeist. The intensity and the quality of interests for this important anthropological theme varied during the researched period, wherefore it is possible to differentiate two types of works and authors: those who write about funeral rituals, and those who 'read' them. From 1980s until nowadays there are three subgroups of contributions to this theme that reflect critical moments of the contemporary Serbian history. The issues raised in this paper are the following: The way in which state/society regards death the way in which it structures death, the way in which it gives meaning to death, as well as the usage of death for political purpose and the constant effort of civilization to repress it into oblivion.

  8. At What Temporal and Spatial Scales Are the Coupled Climate Model Hindcasts in the 20th Century Reliable?

    Sakaguchi, K.; Zeng, X.

    2010-12-01

    The general circulation models (GCMs) that participated in the Coupled Model Intercomparison Project phase 3 (CMIP3) have been intensively studied and shown to reproduce the surface air temperature trend over the 20th century realistically at global and century-long scales. On the other hand, increasing interests in regional and decadal climate projections require better understanding on the scales at which GCMs can or cannot reliably project the future state of the surface air temperature. We address this question by comparing the simulated and observed historical temperature trend from 1880 to 1999 in a spectrum of temporal (decadal to century-long running periods) and spatial (5° grid to global average) scales, based on the simulations by three GCMs: GFDL CM2.0, GISS-EH, and NCAR CCSM3.0. It is found that the agreement between the model-simulated and observed temperature trend time series are improved with increasing spatial and temporal time scales, and the ensemble- and multi-model average hindcasts show better performance than those from individual model simulations. Furthermore, we will provide the temporal and spatial scales at which the hindcasts can be considered “skillful” based on Monte Carlo simulations.

  9. North Atlantic 20th century multidecadal variability in coupled climate models: sea surface temperature and ocean overturning circulation

    Medhaug, I.; Furevik, T.

    2011-06-01

    Output from a total of 24 state-of-the-art Atmosphere-Ocean General Circulation Models is analyzed. The models were integrated with observed forcing for the period 1850-2000 as part of the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report. All models show enhanced variability at multi-decadal time scales in the North Atlantic sector similar to the observations, but with a large intermodel spread in amplitudes and frequencies for both the Atlantic Multidecadal Oscillation (AMO) and the Atlantic Meridional Overturning Circulation (AMOC). The models, in general, are able to reproduce the observed geographical patterns of warm and cold episodes, but not the phasing such as the early warming (1930s-1950s) and the following colder period (1960s-1980s). This indicates that the observed 20th century extreme in temperatures are due to primarily a fortuitous phasing of intrinsic climate variability and not dominated by external forcing. Most models show a realistic structure in the overturning circulation, where more than half of the available models have a mean overturning transport within the observed estimated range of 13-24 Sverdrup. Associated with a stronger than normal AMOC, the surface temperature is increased and the sea ice extent slightly reduced in the North Atlantic. Individual models show potential for decadal prediction based on the relationship between the AMO and AMOC, but the models strongly disagree both in phasing and strength of the covariability. This makes it difficult to identify common mechanisms and to assess the applicability for predictions.

  10. Views of Europe among Serbian political and cultural elite in late 20th and early 21st century

    Jakšić Božidar

    2006-01-01

    Full Text Available On the basis of his own previous research the author examines views of Europe held by the Serbian political and cultural elite in the late 20th and early 21st century. Unable to meet the challenges of the historical moment, this elite has brought Serbia into open conflict with its closest neighbors and exposed its citizens to international sanctions. War-mongering propaganda of the major state-controlled media was developing feelings of xenophobia and frustration among citizens. The collusion between authoritarian government and war profiteers was systematically destroying the lives of Serbian citizens, bringing them to the brink of material impoverishment and spiritual misery. The process of dissolution of the common Yugoslav state is coming to its end in the first decade of this century. Just as it lacked wisdom political will or strength to prevent armed conflicts and crimes, the Serbian elite today is unable to condemn war crimes, to face disastrous consequences of its own policies, and to help Serbian citizens find their way to prosperity.

  11. Fighting for Anatomy. Overview regarding two prestigious Romanian anatomists of the 20th century: Victor Papilian and Grigore T. Popa.

    Bârsu, Cristian

    2016-01-01

    During many centuries, the progress of Anatomy was based on the perseverant and laborious activities done by anatomists. Their work can be considered as a fight for Anatomy. A particular problem arouse when this fight is excessively done and it limits the ability to correctly analyze the contribution made by other scientists in the same domain. This situation was identified at different personalities who lived in the same time and were involved in the same fundamental field of research. If, theoretically, the similarities between scientists should get them closer, in order to have a better communication, the antagonisms can lead them to rivalry. Our paper exemplifies a historical case in which the personages are Victor Papilian (1888-1956) and Grigore T. Popa (1892-1948). The resemblances between these two famous Romanian anatomists from the first half of the 20th century induced an evident scientific rivalry. Papilian and Popa brought a significant contribution in anatomy. Each of them was very much appreciated by his students. It is interesting that both of them had achievements in literature. We present the reasons of their disagreement and its consequences. Paradoxically, not the contrasts, but the resemblances between their strong characters produced a sort of animosity between them. This attitude diminished in time and their successors - Ioan Albu from the Cluj Faculty of Medicine and Ion Iancu from the Jassy Faculty of Medicine - had a long lasting and successful cooperation. PMID:27151732

  12. Louis Nico Marie Duysens (March 15, 1921-September 8, 2015): a leading biophysicist of the 20th century.

    Govindjee; Pulles, M P J

    2016-06-01

    Louis Nico Marie (L. N. M.) Duijsens (Duysens) was one of the giants in the biophysics of photosynthesis. His PhD thesis "Transfer of Excitation Energy in Photosynthesis" (Duysens, 1952) is a classic; he introduced light-induced absorption difference spectroscopy to photosynthesis research and proved the existence of reaction centers, introducing advanced methods from physics to understand biological processes. Further, it is his 1959-1961 seminal work, with Jan Amesz, that provided evidence for the existence of the series scheme for the two light reactions in oxygenic photosynthesis. In one word, he was one of the master biophysicists of the 20th century-who provided direct measurements on many key intermediates, and made us understand the intricacies of photosynthesis with a simplicity that no one else ever did. We present here our personal perspective of the scientist that Lou Duysens was. For an earlier perspective, see van Grondelle and van Gorkom (Photosynth Res 120: 3-7, 2014). PMID:27039907

  13. Floodplain lakes as an archive for the metal pollution in the River Elbe (Germany) during the 20th century

    Highlights: • A floodplain sediment sequence (about 1900–1998) was analyzed on potentially harmful elements. • High sediment contamination by industry restricted to unstable metal binding forms. • After closure of industries (1990) the level of floodplain contamination perpetuates. • Antagonistic binding forms indicate a sensitive equilibrium in sediments. • Floodplain management requires the stabilization of the environmental equilibrium. - Abstract: The German Elbe River floodplains rank under the most polluted areas in Europe. A sudden concentration increase of potentially harmful elements (PHEs) is documented in sediment profiles of Elbe bayous. The increase is dated to the mid of the 20th century (137Cs) and indicates industrialization of the former German Democratic Republic (GDR) as the source of intense pollution. The collapse of the GDR and the industries in the 1990s is traced by a concentration decrease in young sediments. The contamination is restricted to an increase of unstable binding forms; the hydroxide binding form is predominant. The geogenic concentration portions are of normal level and remain stable throughout the profiles (0–2 m). The equilibrium of contradictory binding forms in the sediments makes it mandatory not to interfere with the thermodynamic conditions and to keep the Elbe floodplain as an undisturbed ecological system

  14. Transition of wind power utilization technology in the 20th century; 20 seiki ni okeru furyoku riyo gijutsu no hensen

    Ushiyama, I. [Ashikaga Inst. of Tech., Tochigi (Japan)

    2000-04-01

    Windmills are one of the oldest prime movers and have been used for more than 700 years in Europe. The transition from low speed windmills for grain grinding and water pumping to high speed wind turbines for electric power generation had occurred at the end of 19{sup th} century. This paper, at first, reviews the windmill technologies and the researchers before 20th century. Then describes the back ground of how the wind power generator has existed and how the four pioneers developed their wind power generator. The historical developments of windmills to wind turbines in this century are studied focusing mainly on Danish activities. Then, the effort of the development of large wind turbine such as Smith-Putnum's first MW machine in U.S.A. and other mammoth machine concept are introduced. The new concept machines such as Savonius and Darrieus wind turbines in 1920s to 1930s are also explained. Finally, the novel technologies of wind turbine covering larger machines, variable speed generators, special wing sections for wind turbines, theoretical analysis method of wind turbine performance, offshore wind turbines, and wind turbine control technologies are stated. (author)

  15. Predicting U.S. food demand in the 20th century: a new look at system dynamics

    Moorthy, Mukund; Cellier, Francois E.; LaFrance, Jeffrey T.

    1998-08-01

    The paper describes a new methodology for predicting the behavior of macroeconomic variables. The approach is based on System Dynamics and Fuzzy Inductive Reasoning. A four- layer pseudo-hierarchical model is proposed. The bottom layer makes predications about population dynamics, age distributions among the populace, as well as demographics. The second layer makes predications about the general state of the economy, including such variables as inflation and unemployment. The third layer makes predictions about the demand for certain goods or services, such as milk products, used cars, mobile telephones, or internet services. The fourth and top layer makes predictions about the supply of such goods and services, both in terms of their prices. Each layer can be influenced by control variables the values of which are only determined at higher levels. In this sense, the model is not strictly hierarchical. For example, the demand for goods at level three depends on the prices of these goods, which are only determined at level four. Yet, the prices are themselves influenced by the expected demand. The methodology is exemplified by means of a macroeconomic model that makes predictions about US food demand during the 20th century.

  16. The Continuity and Discontinuity. The Question of Territorialism and Double Identity from the Perspective of 20th Century Macedonia

    Jolanta Sujecka

    2015-07-01

    Full Text Available The Contuinity and Discontinuity. The Question of Territorialism and Double Identity from the Perspective of 20th Century MacedoniaThe sense of territorial identity gains force whenever political means of solving the Macedonian Question, a repugnant legacy of the Eastern issue, become scarce. This attitude is reflected in the articles published by the representatives of the Macedonian diaspora in journals of its different centres. Due to space constraints I decided to present only (and at least the views of Krste Misirkov, a very complex figure indeed, who in contemporary Macedonia belongs to the undisputable national pantheon. His opinions on the Macedonian Question were far from explicit and his statements delivered at different stages of his life do not fit into a cohesive whole as the national purists would want it. However, it is difficult to imagine a better mirror for “Macedonian matters” in the 20th century and a more comprehensive picture of the twisted paths that the Macedonian Slavs took to reach the concept of ‘Macedonian’ understood as an ethnos, not only in its territorial aspect.A bond with the territory has never disappeared from Macedonian self-perception. Only the constant presence of territorial identity explains the assimilation of the ancient heritage, which is in fact heritage of a territory, into the Macedonian national canon. It is further confirmed by the most recent Macedonian history textbooks for high school students where the ancient tradition is treated as a part of their own heritage. While the bond with the territory is still an integral part of the Macedonian elite’s consciousness, the question of double identity remains less obvious. In Misirkov’s time double identity, expressed through various ethnic configurations, on the one hand shaped Macedonian self-identity and on the other proved the distinctiveness of a ‘Macedonian’ at that time (i.e. in the first half of the 20th century from a

  17. Memoiristics as a Meta-Genre of Historical Literature (through the Example of the Reminiscences of Participants in and Witnesses of the Peasant Movement in Ukraine in the Early 20th Century

    Dmytriy Kudinov

    2014-10-01

    Full Text Available In this article, the author examines the term “memoirs” and cites existing classifications of memoir literature. The article proposes the author’s concept for classifying the reminiscences of participants in and witnesses of the peasant movement in Ukraine in the early 20th century. The author notes that memoir literature dedicated to the peasant movement can be examined through the prism of the proposed classification scheme, which will help get an answer to a number of questions posed in the procedure for analysis of reminiscences – the authorship-attribution of the source, the memoirist’s world-perception and views, the degree of proximity to events described, the degree of competence and logicalness of judgments, the author’s expression, operant motives for writing a memoir work, and the specific, genre, and stylistic nature of reminiscences – as well as identify their content fragments.

  18. 20th century human pressures drive reductions in deepwater oxygen leading to losses of benthic methane-based food webs

    Belle, Simon; Millet, Laurent; Verneaux, Valérie; Lami, Andrea; David, Etienne; Murgia, Laurie; Parent, Claire; Musazzi, Simona; Gauthier, Emilie; Bichet, Vincent; Magny, Michel

    2016-04-01

    Freshwater lakes play a key role in the global carbon cycle as sinks (organic carbon sequestration) and sources (greenhouse gas emissions). Understanding the carbon cycle response to environmental changes is becoming a crucial challenge in the context of global warming and the preponderance of human pressures. We reconstructed the long-term (1500 years) evolution of trophic functioning of the benthic food web, based on methanotrophic ancient DNA and chironomid isotope analyses). In addition, human land use is also reconstructed in three different lakes (eastern France, Jura Mountains). Our findings confirm that the benthic food web can be highly dependent on methane-derived carbon (up to 50% of the chironomid biomass) and reveal that the activation of this process can correspond to a natural functioning or be a consequence of anthropic perturbation. The studied lakes also showed a similar temporal evolution over the last century with the disappearance of the profundal aquatic insects (Chironomidae, Diptera), considered as keystone for the whole lake food web (e.g., coupling benthic-pelagic), inducing a potential collapse in the transfer of methane to top consumers. This functional state, also called the dead zone expansion, was caused by the change in human land-use occurring at the beginning of the 20th century. The strong modification of agro-pastoral practices (e.g., fertilization practices, intensive grazing, and sewage effluent) modified the influx of nutrients (by diffuse and/or point-source inputs) and induced a significant increase in the trophic status and organic matter sedimentation to reach unprecedented values. Further studies should be planned to assess dead zone expansion and, according to the regime shift theory, to provide environmental tipping points for sustainable resource management.

  19. North Atlantic 20th century multidecadal variability in coupled climate models: sea surface temperature and ocean overturning circulation

    I. Medhaug

    2011-06-01

    Full Text Available Output from a total of 24 state-of-the-art Atmosphere-Ocean General Circulation Models is analyzed. The models were integrated with observed forcing for the period 1850–2000 as part of the Intergovernmental Panel on Climate Change (IPCC Fourth Assessment Report. All models show enhanced variability at multi-decadal time scales in the North Atlantic sector similar to the observations, but with a large intermodel spread in amplitudes and frequencies for both the Atlantic Multidecadal Oscillation (AMO and the Atlantic Meridional Overturning Circulation (AMOC. The models, in general, are able to reproduce the observed geographical patterns of warm and cold episodes, but not the phasing such as the early warming (1930s–1950s and the following colder period (1960s–1980s. This indicates that the observed 20th century extreme in temperatures are due to primarily a fortuitous phasing of intrinsic climate variability and not dominated by external forcing. Most models show a realistic structure in the overturning circulation, where more than half of the available models have a mean overturning transport within the observed estimated range of 13–24 Sverdrup. Associated with a stronger than normal AMOC, the surface temperature is increased and the sea ice extent slightly reduced in the North Atlantic. Individual models show potential for decadal prediction based on the relationship between the AMO and AMOC, but the models strongly disagree both in phasing and strength of the covariability. This makes it difficult to identify common mechanisms and to assess the applicability for predictions.

  20. Changing climatic and anthropogenic influences on the Bermejo wetland, through archival documents - Mendoza, Argentina, 16th-20th centuries

    Prieto, M. R.; Rojas, F.

    2011-11-01

    The wrong management of watering in the highest zones of the Mendoza northern oasis, the topography of the terrain and the deficient drainage, together with neotectonics phenomena, but mostly a dramatic and progressive increase of the Rio Mendoza flow volume originated the expansion of the wetlands area at the NE of the city of Mendoza at the turn of the 18th century, while in previous centuries it had retracted to a minimum. The area grew until reaching the dimension of large wetlands in the lowest oasis zones, resulting from a larger runoff and soil saturation by the rise of the phreatic layers. This situation remained throughout the 19th century, affecting the extension and use of the available land for human activity. The purpose of this study was to research this process that culminated in 1930 with the partial desiccation of the area. We have given particular importance to the influence of the climatic fluctuations in the Cordillera de los Andes and to the consequent variations of the Rio Mendoza flow volume in this process. For the analysis we used snowfall series at the cordillera and flow volume of the Rio Mendoza, built by Prieto (2009) with documental data. We analyzed which were the mediate and immediate consequences of the growth and later desiccation of the wetlands over the environment and its present repercussion on the ecosystem (salinization, poor soil drainage, soil alkalinization, sedimentation). In addition, we have also worked over georeferenced historic charts that partially reflect the behavior of the Cienaga del Bermejo during the 18th, 19th and 20th centuries. This behavior characterized by "growth pulses" and retraction moments is reflected in the analyzed charts, where those moments of major growth coincide with cycles of bigger snowstorms and larger flow volume in the Rio Mendoza.

  1. Long-term changes in nitrate conditions over the 20th century in two Midwestern Corn Belt streams

    Kelly, Valerie; Stets, Edward G.; Crawford, Charlie

    2015-06-01

    Long-term changes in nitrate concentration and flux between the middle of the 20th century and the first decade of the 21st century were estimated for the Des Moines River and the Middle Illinois River, two Midwestern Corn Belt streams, using a novel weighted regression approach that is able to detect subtle changes in solute transport behavior over time. The results show that the largest changes in flow-normalized concentration and flux occurred between 1960 and 1980 in both streams, with smaller or negligible changes between 1980 and 2004. Contrasting patterns were observed between (1) nitrate export linked to non-point sources, explicitly runoff of synthetic fertilizer or other surface sources and (2) nitrate export presumably associated with point sources such as urban wastewater or confined livestock feeding facilities, with each of these modes of transport important under different domains of streamflow. Surface runoff was estimated to be consistently most important under high-flow conditions during the spring in both rivers. Nitrate export may also have been considerable in the Des Moines River even under some conditions during the winter when flows are generally lower, suggesting the influence of point sources during this time. Similar results were shown for the Middle Illinois River, which is subject to significant influence of wastewater from the Chicago area, where elevated nitrate concentrations were associated with at the lowest flows during the winter and fall. By modeling concentration directly, this study highlights the complex relationship between concentration and streamflow that has evolved in these two basins over the last 50 years. This approach provides insights about changing conditions that only become observable when stationarity in the relationship between concentration and streamflow is not assumed.

  2. Global aridification in the second half of the 20th century and its relationship to large-scale climate background

    2007-01-01

    The variation in surface wetness index (SWI), which was derived from global gridded monthly precipi- tation and monthly mean surface air temperature datasets of Climatic Research Unit (CRU), from 1951― 2002 over global land was analyzed in this paper. The characteristics of the SWI variation in global continents, such as North America, South America, Eurasia, Africa, and Australia, were compared. In addition, the correlation between the SWI variation of each continent (or across the globe) and the large-scale background closely related to SST variations, which affects climate change, was analyzed. The results indicate that the SWI variation shows distinct regional characteristics in the second half of the 20th century under global warming. A drying trend in the last 52 years occurred in Africa, Eurasia, Australia and South America, most obviously in Africa and Eurasia. North America shows a wetting trend after 1976. A 30-year period of dry-wet oscillation is found in South America and Australia; the latest is in a drying period in two regions. The results also revealed that global warming has changed the dry-wet pattern of the global land. South America and Australia have a drying trend despite in- creases in precipitation. This indicates that increases in surface air temperature cannot be ignored in aridification studies. Global dry-wet variation is closely related to large-scale SST variations: the drying trend in Africa and Eurasia and the wetting trend in North America are correlated with Pacific Decadal Oscillation (PDO); the interdecadal oscillation of SWI in South America and Australia is consistent with the interdecadal variation in Southern Oscillation Index (SOI).

  3. Global aridification in the second half of the 20th century and its relationship to large-scale climate background

    MA ZhuGuo; FU CongBin

    2007-01-01

    The variation in surface wetness index (SWI), which was derived from global gridded monthly precipitation and monthly mean surface air temperature datasets of Climatic Research Unit (CRU), from 1951 -2002 over global land was analyzed in this paper. The characteristics of the SWI variation in global continents, such as North America, South America, Eurasia, Africa, and Australia, were compared. In addition, the correlation between the SWI variation of each continent (or across the globe) and the large-scale background closely related to SST variations, which affects climate change, was analyzed.The results indicate that the SWl variation shows distinct regional characteristics in the second half of the 20th century under global warming. A drying trend in the last 52 years occurred in Africa, Eurasia,Australia and South America, most obviously in Africa and Eurasia. North America shows a wetting trend after 1976. A 30-year period of dry-wet oscillation is found in South America and Australia; the latest is in a drying period in two regions. The results also revealed that global warming has changed the dry-wet pattern of the global land. South America and Australia have a drying trend despite increases in precipitation. This indicates that increases in surface air temperature cannot be ignored in aridification studies. Global dry-wet variation is closely related to large-scale SST variations: the drying trend in Africa and Eurasia and the wetting trend in North America are correlated with Pacific Decadal Oscillation (PDO); the interdecadal oscillation of SWl in South America and Australia is consistent with the interdecadal variation in Southern Oscillation Index (SOI).

  4. Development of the Structure of Lithuanian Gardens and Parks from the 16th to the 20th Centuries

    Albinas Mocevičius

    2011-04-01

    Full Text Available The historical development of Lithuanian parks cannot be separated from the historical evolution of our cities and towns and formation of their urbanistic structure. The beginnings of creating garden art in Lithuania, the same as in West Europe, are mentioned in medieval castles and monasteries. A strong influence on the developement of the history of Renaissance gardens was exerted by new models of garden theory, which were formed and formulated by famous European architects, artists, scientists, philosophers. The traditions of antique art were revived, new scientific inventions had an influence on garden art. During the 17th–18th centuries a lot of residences and manors were built, and they played an important role in the urbanisation of the country. In the 17th–18th centuries the tendencies in the Italian art of garden parks in West Europe were taken over by French baroque. In the junction of the 18th and 19th centuries the planning of cities and towns and urbanistic development in the territories of Lithuania and East Europe took place due to bizarre and geometralised influence of the baroque epoch. In the 19th century scenery parks were created next to mansions in Lithuanian towns by famous scenery specialists of that time from West Europe. In the junction of 19th and 20th centuries important geopolitical processes in Lithuania and Europe took place not only in the urbanisation of cities, but also in the planning of parks and their art tendencies. Due to the growth of cities, their urbanised territories and strengthening of social attitude towards a surrounding environment, the boundaries of park art spread into the public areas of cities. At the end of the paper there is a scheme which summarises the development and influence of park structure on city development and formation .Article in Lithuanian

  5. Changing climatic and anthropogenic influences on the Bermejo wetland, through archival documents – Mendoza, Argentina, 16th–20th centuries

    M. R. Prieto

    2011-11-01

    Full Text Available The wrong management of watering in the highest zones of the Mendoza northern oasis, the topography of the terrain and the deficient drainage, together with neotectonics phenomena, but mostly a dramatic and progressive increase of the Rio Mendoza flow volume originated the expansion of the wetlands area at the NE of the city of Mendoza at the turn of the 18th century, while in previous centuries it had retracted to a minimum. The area grew until reaching the dimension of large wetlands in the lowest oasis zones, resulting from a larger runoff and soil saturation by the rise of the phreatic layers. This situation remained throughout the 19th century, affecting the extension and use of the available land for human activity. The purpose of this study was to research this process that culminated in 1930 with the partial desiccation of the area. We have given particular importance to the influence of the climatic fluctuations in the Cordillera de los Andes and to the consequent variations of the Rio Mendoza flow volume in this process. For the analysis we used snowfall series at the cordillera and flow volume of the Rio Mendoza, built by Prieto (2009 with documental data. We analyzed which were the mediate and immediate consequences of the growth and later desiccation of the wetlands over the environment and its present repercussion on the ecosystem (salinization, poor soil drainage, soil alkalinization, sedimentation. In addition, we have also worked over georeferenced historic charts that partially reflect the behavior of the Cienaga del Bermejo during the 18th, 19th and 20th centuries. This behavior characterized by "growth pulses" and retraction moments is reflected in the analyzed charts, where those moments of major growth coincide with cycles of bigger snowstorms and larger flow volume in the Rio Mendoza.

  6. The 20th century whole-basin trophic history of an inter-drumlin lake in an agricultural catchment.

    Jordan, Philip; Rippey, Brian; Anderson, N John

    2002-10-01

    Eight 1-m sediment cores were extracted from across the basin of Friary Lough, a 5.4-ha eutrophic lake in a wholly grassland agricultural catchment in Co. Tyrone, Northern Ireland. Sedimentary TP, diatom inferred TP, Ca, Na, Fe, Mn, loss-on-ignition (LOI), dry weight and density were determined in the core profiles. Core dating and correlation gave a 210Pb, 137Cs and 241Am chronology from 1906 to 1995 and enabled a whole-basin estimate of chemical and sediment accumulation rate over the 20th Century. The major changes for all parameters occurred after c. 1946. Sediment accumulation rate was most influenced by organic matter accumulations, probably of planktonic origin, and increasing after c. 1946. Inorganic sediment accumulation rate was found to be largely unchanging through the century at 10 t km(-2) yr(-1) when expressed as catchment exports. All chemical accumulation rate changes occurred after c. 1946. Total phosphorus accumulation rate, however, was found to be the only chemical to be increasing throughout the epilimnion and hypolimnion areas of the sedimentary basin at an average of 22.5 mg m(-2) yr(-1) between 1946 and 1995. The other chemical parameters showed increasing accumulation rates after c. 1946 in the epilimnion part of the basin only. Interpreted in terms of whole-basin sedimentation and catchment export processes over time, it is suggested that diffuse TP inputs are independent of sediment inputs. This corresponds to hydrochemical models that suggest soluble P as the primary fraction that is lost from grassland catchments. The increase in sedimentary TP accumulation rate, and DI-TP concentration, are also explained with regard to current models that suggest increases in runoff P concentrations from elevated soil P concentrations. Increases in eplimnion chemical and sediment accumulation rate after c. 1946 may be due to local erosion that has limited impact on lake basin sedimentation. PMID:12389788

  7. Stevens’ forgotten crossroads: The divergent measurement traditions in the physical and psychological sciences from the mid-20th century

    Joshua A McGrane

    2015-04-01

    Full Text Available The late 19th and early 20th Centuries saw the consolidation in physics of the three main traditions that predominate in discussions of measurement theory. These are: (i the systematic tradition pioneered by Maxwell; (ii the representational tradition pioneered by Campbell; and (iii the operational tradition pioneered by Bridgman (1927. These divergent approaches created uncertainty about the nature of measurement in the physical sciences and provided Stevens (1946 with an opportunity and rationale to, in effect, reinvent the definition of scientific measurement. Stevens appropriated the representational and operational traditions as the sole basis for his definition of measurement, excluding any place for the systematic approach. In committing to Stevens’ path, the psychological sciences were blinded to the advances made in metrology, the establishment of the International System (SI and the standard units contained within this system. These advances were only possible due to the deep conceptual and instrumental connections between the system of physical units and the body of physical theory and laws developed over the preceding centuries. It is argued that if the psychological sciences are to ever achieve equivalent methodological advances, they must bridge this ‘metrological gap’ created by Stevens’ measurement crossroads and understand the ways in which the systematic approach advanced measurement. This means that psychological measurement needs to be de-abstracted, rid of operational rules for numerical assignment and set upon a foundation of quantitative theory, definition and law. In the absence of such theoretical foundations, claims of measurement in the psychological sciences remain a methodological chimera.

  8. Comparison of 20th century and pre-industrial climate over South America in regional model simulations

    Wagner, S.; Fast, I.; Kaspar, F.

    2012-10-01

    In this study, we assess how the anthropogenically induced increase in greenhouse gas concentrations affects the climate of central and southern South America. We utilise two regional climate simulations for present day (PD) and pre-industrial (PI) times. These simulations are compared to historical reconstructions in order to investigate the driving processes responsible for climatic changes between the different periods. The regional climate model is validated against observations for both re-analysis data and GCM-driven regional simulations for the second half of the 20th century. Model biases are also taken into account for the interpretation of the model results. The added value of the regional simulation over global-scale modelling relates to a better representation of hydrological processes that are particularly evident in the proximity of the Andes Mountains. Climatic differences between the simulated PD minus PI period agree qualitatively well with proxy-based temperature reconstructions, albeit the regional model overestimates the amplitude of the temperature increase. For precipitation the most important changes between the PD and PI simulation relate to a dipole pattern along the Andes Mountains with increased precipitation over the southern parts and reduced precipitation over the central parts. Here only a few regions show robust similarity with studies based on empirical evidence. However, from a dynamical point-of-view, atmospheric circulation changes related to an increase in high-latitude zonal wind speed simulated by the regional climate model are consistent with numerical modelling studies addressing changes in greenhouse gas concentrations. Our results indicate that besides the direct effect of greenhouse gas changes, large-scale changes in atmospheric circulation and sea surface temperatures also exert an influence on temperature and precipitation changes in southern South America. These combined changes in turn affect the relationship between

  9. The 20th century carbon budget simulated with the CCCma earth system model CanESM1

    Arora, V. K.; Boer, G. J.; Curry, C. L.; Christian, J. R.; Zahariev, K.; Denman, K. L.; Flato, G. M.; Scinocca, J. F.; Merryfield, W. J.; Lee, W. G.

    2008-12-01

    The atmosphere-land-ocean CO2 exchange for the 1850-2000 period, as simulated with the Canadian Centre for Climate Modelling and Analysis Earth System Model (CanESM1), is assessed. Land use change (LUC) emissions are estimated interactively on the basis of changes in crop area. In its default configuration, the terrestrial CO2 uptake in the model is higher and atmospheric CO2 concentration lower than observed for the 1850-2000 period. This is likely due to lower simulated LUC emissions in the model because LUC due to changes in pasture area and forest harvesting are not taken into account, although LUC emissions are highly uncertain (± 50% uncertainty). Down-regulation of photosynthesis is observed in many experimental studies that grow plants at ambient and elevated CO2. However, the role of down- regulation of terrestrial photosynthesis in the carbon cycle has not yet been explored. We examine the effect of photosynthesis down-regulation by implementing an empirical down-regulation mechanism based on experimental studies of plant growth under conditions of increased CO2. The rate of increase of terrestrial net primary productivity with CO2 in the model, after down-regulation, is consistent with that inferred from an independent study. When down-regulation is implemented, the 20th century land and ocean carbon uptake and atmospheric CO2 concentration are in good agreement with observation-based estimates. Our results show that down-regulation of terrestrial photosynthesis may play a role in terrestrial carbon uptake similar in magnitude to the uncertainty in LUC emissions. The empirical approach used here also offers a reasonable method of implementing down-regulation for coupled carbon-climate simulations in the absence of a more explicit biogeochemical representation in models.

  10. Solar Radiation and Cloud Change in China Calculated in a 20th Century Simulation with a Climate Model

    Nagashima, T.; Nozawa, T.; Hayasaka, T.; Kawamoto, K.

    2009-12-01

    Significant long-term trends in various climate elements in China have been observed in recent decades. The elements include surface temperature, precipitation, evaporation, surface solar radiation, cloud cover, etc. It is of particular interest that coexistence of decreasing trends both in solar radiation and cloud cover have been observed over most of China, since a decreasing trend of solar radiation would be expected to be accompanied by an increasing trend of cloud cover that reduces the radiation from the sun. Here, we investigate the cause of this confusing fact with the aid of a 20th century simulation performed with the MIROC climate model. Simulated trend in the surface solar radiation shows the decreasing trend over entire China, although the trend averaged over China is about -1.0 W/m2 which is smaller than observed trend. While the simulated trend in cloud cover averaged over China is indiscernible as opposed to the observation, a small but significant decreasing trend similar to the observation could be simulated in the southern part of China. In the southern part of China, our model could capture the coexistence of decreasing trends both in solar radiation and cloud cover, which could also be simulated an experiment forced only anthropogenic climate forcings (i.e. increases in greenhouse gases and aerosols). As for the decrease in the surface solar radiation simulated in the model, the dominant cause is the increase in aerosols. Simplified analysis revealed the relative importance of direct and indirect effect of aerosols on the decrease in the surface solar radiation in the model; both effects have comparable contributions in some regions. The increase in greenhouse gasses has some effect on the decrease in cloud cover in the southern part of China in the model.

  11. Comparison of 20th century and pre-industrial climate over South America in regional model simulations

    S. Wagner

    2012-10-01

    Full Text Available In this study, we assess how the anthropogenically induced increase in greenhouse gas concentrations affects the climate of central and southern South America. We utilise two regional climate simulations for present day (PD and pre-industrial (PI times. These simulations are compared to historical reconstructions in order to investigate the driving processes responsible for climatic changes between the different periods. The regional climate model is validated against observations for both re-analysis data and GCM-driven regional simulations for the second half of the 20th century. Model biases are also taken into account for the interpretation of the model results. The added value of the regional simulation over global-scale modelling relates to a better representation of hydrological processes that are particularly evident in the proximity of the Andes Mountains.

    Climatic differences between the simulated PD minus PI period agree qualitatively well with proxy-based temperature reconstructions, albeit the regional model overestimates the amplitude of the temperature increase. For precipitation the most important changes between the PD and PI simulation relate to a dipole pattern along the Andes Mountains with increased precipitation over the southern parts and reduced precipitation over the central parts. Here only a few regions show robust similarity with studies based on empirical evidence. However, from a dynamical point-of-view, atmospheric circulation changes related to an increase in high-latitude zonal wind speed simulated by the regional climate model are consistent with numerical modelling studies addressing changes in greenhouse gas concentrations.

    Our results indicate that besides the direct effect of greenhouse gas changes, large-scale changes in atmospheric circulation and sea surface temperatures also exert an influence on temperature and precipitation changes in southern South America. These combined changes in

  12. Changes in Vascular Plant Biodiversity in the Netherlands in the 20th Century Explained by their Climatic and other Environmental Characteristics

    Tamis, W.L.M.; Van der Meijden, R.; Udo de Haes, H.A. [Nationaal Herbarium Nederland/Leiden University Branch, P.O. Box 9514, 2300, RA, Leiden (Netherlands); Van ' t Zelfde, M. [Institute of Environmental Sciences, Leiden University, P.O. Box 9518, 2300, RA, Leiden (Netherlands)

    2005-09-01

    In the Netherlands nation-wide databases are available with about 10 million records of occurrences of vascular plant species in the 20th century on a scale of approximately 1 km{sup 2}. These data were analysed with a view to identifying relationships between changes in botanical biodiversity and climatic and other environmental factors. Prior to analysis the data were corrected for several major forms of survey bias. The records were broken down into three periods: 1902-1949, 1975-1984 and 1985-1999. Using multiple regression analysis, differences between successive periods were related to plant functional characteristics as explanatory variables. Between the periods 1902-1949 and 1975-1984 there were small but significant increases in the presence of both thermophilic ('warm') and psychrophilic ('cold') species. However, in the final decades of the 20th century there was a marked increase in thermophilic species only, coinciding with the marked increase in ambient temperature observed during this period, evidence at least of a rapid response of Dutch flora to climate change. Urbanisation was also examined as an alternative explanation for the increase in thermophilic plant species and was found to explain only 50% of the increased presence of such species in the final decades of the 20th century. Besides temperature-related effects, the most important change during the 20th century was a strong decline in oligotrophic and a marked increase in eutrophic plant species.

  13. American Journalism Historians Association Annual Convention (London, Ontario, Canada, October 3-5, 1996). Part II: Selecting Papers Covering the 20th Century.

    American Journalism Historians' Association.

    The 17 papers in this collection all deal with 20th-century journalism, journalists, and mass media. The papers and their authors are: "Building One's Own Gallows: The Trade Publications' Reaction to a Federal Shield Law, 1972-1974" (Karla Gower); "The Useful Ogre: Sweden's Use and Views of American Television, 1956-62" (Ulf Jonas Bjork); "Black…

  14. Nostalgic for What? The Epidemic of Images of the Mid 20th Century Classroom in American Media Culture and What it Means

    Otto, Stacy

    2005-01-01

    Within this paper the author examines the current nostalgia for a never-present past through critical analysis of images of the mid 20th century American classroom in media culture. The author uses theories of nostalgia and the history of the photographic image to trouble the numerous equity issues surrounding the unchallenged canonization of the…

  15. History at the Mercy of Politicians and Ideologies: Germany, England, and the Netherlands in the 19th and 20th Centuries

    Wilschut, Arie H. J.

    2010-01-01

    The paper analyses and compares developments in history teaching in Germany, England, and the Netherlands in the 19th and 20th centuries. The development of history teaching in the three countries shows striking similarities. National politics have always used history education for purposes which did not necessarily tally with distanced critical…

  16. Adriatic and Black Sea level in the 20th century and projection to the end of the 21st century.

    Scarascia, Luca; Lionello, Piero

    2015-04-01

    Adriatic and Black Sea are semi-enclosed basins characterized by densely populated coasts, industrial compounds and a rich cultural and historical heritage. It appears to be crucial, for the management and the protection of their coastlines, to understand how much they will be impacted by the global sea level (SL) rise, projected by the end of this century. The aim of this work is to develop a method that allows to estimate to which extent the SL of the two basins will depart from the mean global level. The future evolution of global sea level is not a meaningful indicator at this regional scale and past deviations, due to local factors of the Adriatic and Black Sea levels from the global one, have been observed. The Adriatic Sea is the basin of the Mediterranean Sea best covered by past SL observations. In fact, for the Adriatic Sea is possible to obtain, by statistical method based on PCA and Least square Method, a seamless and long time series (from 1900 to 2009) using records of 7 mareographic stations located along the Italian and Croatian coasts (from PSMSL database). Satellite data of SL are available for the whole Mediterranean from 1993 to 2012 and they show a very high correlation (rho > 0.9) with Adriatic time series based on mareographic records. The SL time series of the 20th century in the Black Sea is computed using data of 4 stations, which are available in the PSMSL (Permanent Service for Mean Sea Level) archive, located on the north-east coast. This time series shows a lower correlation (rho about 0.5) with satellite data than in the case of Adriatic Sea. Further it shows a higher interannual variability. All the time series are considered after the subtraction of the Inverse Barometer (IB) effect. A statistical approach, based on a multivariate linear regression model, is used to investigate the link between SL anomaly, computed as the difference between the regional SL and global SL, and three large scale climate variables (sea level pressure

  17. Impacts of 20th century aerosol emissions on the South Asian monsoon in the CMIP5 models

    L. Guo

    2014-12-01

    Full Text Available Comparison of single-forcing varieties of 20th century historical experiments in a subset of models from the Fifth Coupled Model Intercomparison Project (CMIP5 reveals that South Asian summer monsoon rainfall increases towards the present day in Greenhouse Gas (GHG-only experiments with respect to pre-industrial levels, while it decreases in anthropogenic aerosol-only experiments. Comparison of these single-forcing experiments with the all-forcings historical experiment suggests aerosol emissions have dominated South Asian monsoon rainfall trends in recent decades, especially during the 1950s to 1970s. The variations in South Asian monsoon rainfall in these experiments follows approximately the time-evolution of inter-hemispheric temperature gradient over the same period, suggesting a contribution from the large-scale background state relating to the asymmetric distribution of aerosol emissions about the equator. By examining the twenty-five available all-forcings historical experiments, we show that models including aerosol indirect effects dominate the negative rainfall trend. Indeed, models including only the direct radiative effect of aerosol show an increase in monsoon rainfall, consistent with the dominance of increasing greenhouse gas emissions and planetary warming on monsoon rainfall in those models. For South Asia, reduced rainfall in the models with indirect effects is related to decreased evaporation at the land surface rather than from anomalies in horizontal moisture flux, suggesting the impact of indirect effects on local aerosol emissions. This is confirmed by examination of aerosol loading and cloud droplet number trends over the South Asia region. Thus while remote aerosols and their asymmetric distribution about the equator play a role in setting the inter-hemispheric temperature distribution on which the South Asian monsoon, as one of the global monsoons, operates, the addition of indirect aerosol effects acting on very local

  18. Climatic changes between 20th century and pre-industrial times over South America in regional model simulations

    Wagner, S.; Fast, I.; Kaspar, F.

    2011-09-01

    Two simulations with a regional climate model are analyzed for climatic changes between the late 20th century and a pre-industrial period over central and southern South America. The model simulations have been forced with large-scale boundary data from the global simulation performed with a coupled atmosphere-ocean general circulation model. The regional simulations have been carried out on a 0.44° × 0.44° grid (approx. 50 km × 50 km horizontal resolution). The differences in the external forcings are related to a changed greenhouse gas content of the atmosphere, being higher in the present-day simulation. For validation purposes the climate model is analyzed using a five year long simulation between 1993 and 1997 forced with re-analysis data. The climate model reproduces the main climatic features reasonably well, especially when comparing model output co-located with observational station data. However, the comparison between observed and simulated climate is hampered by the sparse meteorological station network in South America. The present-day simulation is compared with the pre-industrial simulation for atmospheric fields of near-surface temperatures, precipitation, sea level pressure and zonal wind. Higher temperatures in the present-day simulation are evident over entire South America, mostly pronounced over the southern region of the Andes Mountains and the Parana basin. During southern winter the higher temperatures prevail over the entire continent, with largest differences over the central Andes Mountains and the Amazonian basin. Precipitation differences show a more heterogeneous pattern, especially over tropical regions. This might be explained by changes in convective processes acting on small scales. During southern summer wetter conditions are evident over the Amazonian and Parana basin in the present-day simulation. Precipitation increases are evident over Patagonia together with decreases to the north along the western slope of the Andes

  19. Proglacial sediment supply and channel evolution of the Arveyron of the Mer de Glace since the early 20th c.

    Berthet, Johan; Astrade, Laurent; Ravanel, Ludovic; Ployon, Estelle

    2015-04-01

    The Arveyron of the Mer de Glace is the emissary of the most famous and largest French glacier. The latter has dramatically shrunk since the end of the Little Ice Age (LIA), such as every alpine glacier: the front has registered a retreat of 2.7 km since 1820 and a recent modelling showed a likely decrease of an extra km by 2040. The Arveyron and its surroundings are deeply impacted by the retreat. Then, dynamics of proglacial streams and of lateral moraines have been studied at different time and space scales through various methods: airborne and terrestrial Lidar DEM comparisons, mapping from orthophotos, 2D and 3D monoplotting to quantify past events from old terrestrial pictures, etc. By coupling studies on moraines and on stream morphology we wanted to better understand the influence of glacier retreat on sediment supply and transport downstream. Results show the evolution of the stream sediment sources linked to the glacier retreat. Before the middle of the 20th century, till was the main sediment source and was released by major flood events such as GLOFs. Now, geomorphic activity is especially important on the right lateral moraine into the recently deglaciated hanging valley of the Mer de Glace but also in the moraine flanks of the current glacier tongue (many landslides occurred during the Summer 2014). The recent glacier retreat has also formed sediments sinks such as two proglacial lakes which are progressively filling. These lakes work as big sediment traps until they will disappear (around 2017). Fluvial dynamics of the Arveyron depends on the connectivity with potential sediments sources. This is why we crossed upstream studies with the channel evolution on its fan. Arveyron channel has got narrower and incised for at least a century. Such evolution should mean a decreasing sediment yield, but anthropic factors play also an important role on stream morphology. The main anthorpic impact is the complex subglacial harnessing of the Mer de Glace. The

  20. Impacts of 20th century aerosol emissions on the South Asian monsoon in the CMIP5 models

    Guo, L.; Turner, A. G.; Highwood, E. J.

    2015-06-01

    Comparison of single-forcing varieties of 20th century historical experiments in a subset of models from the Fifth Coupled Model Intercomparison Project (CMIP5) reveals that South Asian summer monsoon rainfall increases towards the present day in Greenhouse Gas (GHG)-only experiments with respect to pre-industrial levels, while it decreases in anthropogenic aerosol-only experiments. Comparison of these single-forcing experiments with the all-forcings historical experiment suggests aerosol emissions have dominated South Asian monsoon rainfall trends in recent decades, especially during the 1950s to 1970s. The variations in South Asian monsoon rainfall in these experiments follows approximately the time evolution of inter-hemispheric temperature gradient over the same period, suggesting a contribution from the large-scale background state relating to the asymmetric distribution of aerosol emissions about the equator. By examining the 24 available all-forcings historical experiments, we show that models including aerosol indirect effects dominate the negative rainfall trend. Indeed, models including only the direct radiative effect of aerosol show an increase in monsoon rainfall, consistent with the dominance of increasing greenhouse gas emissions and planetary warming on monsoon rainfall in those models. For South Asia, reduced rainfall in the models with indirect effects is related to decreased evaporation at the land surface rather than from anomalies in horizontal moisture flux, suggesting the impact of indirect effects on local aerosol emissions. This is confirmed by examination of aerosol loading and cloud droplet number trends over the South Asia region. Thus, while remote aerosols and their asymmetric distribution about the equator play a role in setting the inter-hemispheric temperature distribution on which the South Asian monsoon, as one of the global monsoons, operates, the addition of indirect aerosol effects acting on very local aerosol emissions also

  1. A 20th-century reanalysis forced ocean model to recover North Atlantic climate variability from 1870-2007

    Mueller, W.; Matei, D.; Bersch, M.; Jungclaus, J.; Lohmann, K.; Marotzke, J.

    2012-04-01

    The MPI ocean model MPIOM is forced with the NOAA 20th-century reanalysis to examine North Atlantic climate variability for the period 1870-2007. Ocean model results are compared with a gridded observational data base (CLISAP) for the later period (1950-2007, NCEP-period hereafter) and selected reconstructions for the earlier period (1870-1949, preNCEP-period). During the NCEP-period the forced MPIOM provides coherent decadal variability of temperature and salinity in the North Atlantic compared with observations. The Labrador Sea water properties follow the observed shift during the 1960s and 1990s and reversal afterwards. Sea water properties within the sub-polar gyre also capture observed decadal variability. The modeled Atlantic meridional overturning circulation (AMOC) at 26°N exhibits a time-mean maximum of ~17 Sv, which is within the current uncertainty range of the RAPID observations. During the first decades of the preNCEP-period sea water properties are substantially different compared to the NCEP-period. Salinity within the sub-polar gyre drops to -0.4PSU during from 1880-1910 and strongly increase afterwards. Similarly the AMOC strength is reduced to 12SV and increased to 17SV from the 1920s to the 1940s. This drop is found independent of the initialization of the forcing components suggesting responsible atmospheric forcing fields. Examination of the atmospheric forcing fields yields a weakened pressure gradient and respective geostrophic flow component over the northern European area during the preNCEP period. In association a weaker heat transport is found towards the Arctic area with considerable lower temperatures during the preNCEP period than for the NCEP period. Sea ice thickness and extent is largely increased within the preNCEP period throughout the Arctic and the Nordic Seas. Consequently more sea ice is transported along the Greenland current exporting large amount of fresh water into the Irminger and Labrador Sea. This fresh water release

  2. Comparing CMIP3 20th Century Experiments and Developing Dynamic Downscaling Method Using Numerical Weather Prediction Model

    Taniguchi, K.; Yamamoto, A.

    2010-12-01

    The results of 20th Century Climate in Coupled Models (20C3M) runs by multiple GCMs in Coupled Model Intercomparison Project 3 (CMIP3) are investigated especially in summer of Asia. For reference data of the current climate conditions, the reanalysis data product by Japan Meteorological Agency (Japan Reanalysis 25-years: JRA25) is used. The comparison of spatial distribution of atmospheric temperature between JRA25 and CMIP3 20C3M show; 1) climatological atmospheric temperature (mean for 1979-2000) in lower troposphere are similar among CMIP3 20C3M outputs and reproducibility is relatively good; 2) the atmospheric temperature at 500 hPa shows clear difference over the Indian Ocean and the Pacific Ocean. At the same time, the atmospheric temperature is highest around the Tibetan Plateau at this layer in JRA25, but the location of the warm core is different among the models; 3) In the upper troposphere (e.g. 200 and 300 hPa), difference among the models are very significant. Some models are too warm and some are too cold. The differences are larger in 200 hPa than in 300 hPa, and every model has one or more disparity between JRA25. Time-series of atmospheric temperature is also investigated for several regions in Asia. Though there are clear differences in the maximum and minimum values, seasonal variations of atmospheric temperature at near the surface are similar among the models. However, atmospheric temperature in the upper troposphere is quite different among the models, not only the minimum and maximum values but also its seasonal progression. Those results show low reproducibility in some GCMs and the use of them may not be appropriate for reliable assessment of the effects of global warming. In this study, a downscaling method is developed by using Weather Research Forecasting (WRF) model. Following the results of the comparison, the CMIP3 product is not directly used for DDS, but a monthly mean base-state of atmospheric conditions are given by JRA25 and a

  3. Could a 1755-like tsunami reach the French Atlantic coastline? Constraints from 20th century observations and numerical modeling.

    Allgeyer, S.; Daubord, C.; Hébert, H.; Loevenbruck, A.; Schindelé, F.; Madariaga, R.

    2012-04-01

    The tsunami generated by the 1st November 1755 (Mw ~8.5) earthquake off Portugal affected mainly the coasts of the Iberian Peninsula and Northwest Morocco, and was observed in some places on the North Atlantic coasts, towards the West Indies, but also towards Ireland and the Great Britain, in Cornwall. However, no evidence of observation were found along French Atlantic coastline so far. In a first step, to determine whether there could be effects due to tsunamis on the French coastline, we conducted a study to search for actual tsunamis signals in all historical tide gauge stations of the French Atlantic coast available during the 20th century, specifically for the 1969 and 1975 tsunamis that were well observed in Portugal. Because many recordings are available from the French Hydrographic Service in La Rochelle (west French Atlantic coastline), we focus our study on this harbor. The analysis of these historical tide gauge data shows no evidence for tsunamis in La Rochelle, neither in 1969 or in 1975. Then, to confirm this lack of tsunami, we simulate the tsunamis from the 1969 and 1975 sources, using non linear shallow water equations and a series of imbricated bathymetric grids focusing to the French coastline, and then towards the harbor of La Rochelle: the modeling results confirm unnoticeable amplitudes. In the following step, tsunamis from three different scenarios for the 1755 earthquake have been similarly modeled to estimate the impact of such a tsunami on the French Atlantic coast, with a focus on La Rochelle harbor. The results show that, while the harbor is well protected (amplitudes computed on a synthetic tide gage in the harbor do not exceed 20 to 30 cm crest-to-trough) several areas may have undergone a more important, yet moderate impact, from 0.5 to 1 m, especially in the western part of the island of Ré and the northern coast of the island of Oléron. This may have caused possible local inundations in lowland areas, all the more since the tide

  4. Climatic changes between 20th century and pre-industrial times over South America in regional model simulations

    S. Wagner

    2011-09-01

    Full Text Available Two simulations with a regional climate model are analyzed for climatic changes between the late 20th century and a pre-industrial period over central and southern South America. The model simulations have been forced with large-scale boundary data from the global simulation performed with a coupled atmosphere-ocean general circulation model. The regional simulations have been carried out on a 0.44° × 0.44° grid (approx. 50 km × 50 km horizontal resolution. The differences in the external forcings are related to a changed greenhouse gas content of the atmosphere, being higher in the present-day simulation.

    For validation purposes the climate model is analyzed using a five year long simulation between 1993 and 1997 forced with re-analysis data. The climate model reproduces the main climatic features reasonably well, especially when comparing model output co-located with observational station data. However, the comparison between observed and simulated climate is hampered by the sparse meteorological station network in South America.

    The present-day simulation is compared with the pre-industrial simulation for atmospheric fields of near-surface temperatures, precipitation, sea level pressure and zonal wind. Higher temperatures in the present-day simulation are evident over entire South America, mostly pronounced over the southern region of the Andes Mountains and the Parana basin. During southern winter the higher temperatures prevail over the entire continent, with largest differences over the central Andes Mountains and the Amazonian basin.

    Precipitation differences show a more heterogeneous pattern, especially over tropical regions. This might be explained by changes in convective processes acting on small scales. During southern summer wetter conditions are evident over the Amazonian and Parana basin in the present-day simulation. Precipitation increases are evident over Patagonia together with decreases to the

  5. Croatian Chemistry in the 20th Century. III. From the Establishment of the Republic of Croatia on June 25th, 1991 to the End of the Century

    Trinajstić, N:

    2012-11-01

    Full Text Available In this last part of our attempt to present briefly the history of Croatian chemistry in the 20th century, the development of chemistry in the Republic of Croatia, established as an independent state on June 25th, 1991 is outlined. The last 10 years of the 20th century are characterized first by defense of the country by arms until 1995, and then until the end of century, and after the constructive building of the foundations of Croatia. In these turbulent times, scientists could not be just bystanders. Thus, some went to defend the country by arms and others (perhaps older kept informing colleagues all around the globe about our defense of the homeland. This was the reason why scientific research in Croatia showed very limited results. This article briefly describes research in chemistry at the Faculty of Natural Sciences and Mathematics, the Rugjer Bošković Institute, Faculty of Chemical Engineering and Technology, Faculty of Pharmacy and Biochemistry, Faculty of Medicine, Faculty of Veterinary Medicine, Faculty of Agronomy and Faculty of Forestry. This article logically follows our previous two articles on the history of Croatian chemistry in 20th century: N. Trinajstić, S. Paušek-Baždar, Croatian Chemistry in the 20th Century. I. From the turn of the Century to May 8th , 1945 (Kem. Ind. 56 (2007 403–416 and N. Trinajstić, M. Kaštelan-Macan, S. Paušek-Baždar, H. Vančik, Croatian Chemistry in the 20th Century. II. From the Colapse of the Independent State of Croatia to the Establishmernt of the Republic of Croatia, (Kem. Ind. 58 (2009 315–336. It is also related to our article on the history of Croatian chemistry in 19th century: S. Paušek-Baždar, N. Trinajstić, Croatian Chemistry in the 19th Century (Kem. Ind. 55 (2006 333–339 and our survey of the Croatian chemical journals: N. Trinajstić, N. Raos, S. Paušek-Baždar, D. Škare, Croatian Chemistry in 20th Century. IV. Croatian Chemical Journals (Kem. Ind. 57 (2008 447

  6. AN ANALYSIS OF THE DIFFERENTIATION STRATEGIES OF RURAL FOUNDRIES IN THE BEGINNING OF THE 20TH CENTURY IN THE PROVINCE OF QUEBEC

    Lisa Baillargeon

    2009-01-01

    Full Text Available The business model and strategic position of Quebec's rural foundries at the beginning of the 20th century is virtually unknown. Inferences have been made based on pictorial and oral data sources. This data reveals that successful rural foundries were, in essence, confined to producing and selling agricultural tools to local farmers on an as-needed basis, because large urban foundries were already mass-producing domestic and industrial objects. In contrast, use of detailed accounting records and advertising publications of three rural foundries over the 1900 to 1914 period provides a clearer picture of the production and of the clientele of those rural foundries. Analysis of these sources suggests that the strategic business model of rural foundries was much more elaborate than the existing literature posits. Rural owner-managers of the early 20th century were sophisticated strategists, marketers, and operators.

  7. 20世纪中国气候变暖的归因分析%Progress in the Attribution of Climate Warming in China for the 20th Century

    周天军; 赵宗慈

    2007-01-01

    Progress in the attribution of climate warming in China for the 20th century is summarized. Three sets of climate model experiments including both coupled and uncoupled runs have been used in the attribution analyses. Comparison of climate model results with the observations proves that in the 20th century, especially in the recent half century, climate warming in China is closely related to the increasing of the anthropogenic emissions of greenhouse gases, while sulfate aerosol should also have contributions. When both external forcing and natural forcing agents are prescribed, coupled climate models have better results in producing the observed variation of temperature in China. The role of oceanic forcing is also emphasized in the attribution analyses. The observed climate warming of China in the 1920s could not be reproduced in any set of climate model simulations.

  8. A comparison of changes model produced temperature and precipitation extremes with observed changes for the 20th Century and Simulated Changes for the 21st Century.

    Easterling, D. R.; Gleason, B.; Vose, R. S.; Stouffer, R. J.

    2006-12-01

    Observed changes in temperature and precipitation extremes for the latter half of the 20th century generally show increases in warm temperature extremes, decreases in cold extremes, and increases in heavy precipitation events (Alexander et al. 2006). Here we use daily values from a general circulation model simulation for the 20th century using observed greenhouse gas and other forcings produced for the IPCC Fourth Assessment Report and the definition of extremes found in Alexander et al. (2006) as well as other extremes to compare how changes in the model-produced extremes compare to the changes in observed extremes. The model used is the NOAA Geophysical Fluid Dynamics Climate Model 2.1. We also examine how these temperature and precipitation extremes change in simulations produced using two 21st century forcing scenarios. Alexander, L., et al., 2006: Global observed changes in daily climate extremes of temperature and precipitation. J. Geophys. Res., D05109,doi:10.1029/2005JD006290.

  9. Between autonomy of music and the composer’s autonomy. Notes on modernisms and traditionalisms in Slovenian music of the 20th century

    Stefanija Leon

    2006-01-01

    Full Text Available The aim of this article is to examine the relations between the old and the new in the context of 20th-century Slovenian music. The question about the old and the new is seen not only as a question of different facets of an age-old opposition, but also as a complex issue of the epistemological contextualization of those different facets. Centered on the main historiographical entries – the avant-garde, modernity, traditionalism, and post-modernity –, the outline of the 20th-century Slovenian musical culture endeavors to point out what is a common problem of the Western musical heritage from the past century: the problem of defining constituents of the old and the new within different epistemological contexts.

  10. Extension of the SIM Hydrometeorological Reanalysis Over the Entire 20th Century by Combination of Observations and Statistical Downscaling

    Minvielle, M.; Céron, J.; Page, C.

    2013-12-01

    The SAFRAN-ISBA-MODCOU (SIM) system is a combination of three different components: an atmospheric analysis system (SAFRAN) providing the atmospheric forcing for a land surface model (ISBA) that computes surface water and energy budgets and a hydrological model (MODCOU) that provides river flows and level of several aquifers. The variables generated by the SIM chain constitute the SIM reanalysis and the current version only covers the 1958-2012 period. However, long climate datasets are required for evaluation and verification of climate hindcasts/forecasts and to isolate the contribution of natural decadal variability from that of anthropogenic forcing to climate variations. The aim of this work is to extend of the fine-mesh SIM reanalysis to the entire 20th century, especially focusing on temperature and rainfall over France, but also soil wetness and river flows. This extension will first allow a detailed investigation of the influence of decadal variability on France at very fine spatial scales and will provide crucial information for climate model evaluation. Before 1958, the density of available observations from Météo-France necessary to force SAFRAN (rainfall, snow, wind, temperature, humidity, cloudiness) is much lower than today, and not sufficient to produce a correct SIM reanalysis. That's why is has been decided to use the available atmospheric observations over the past decades combined to a statistical downscaling algorithm to overcome the lack of observations. The DSCLIM software package implemented by the CERFACS and using a weather typing based statistical methodology will be used as statistical downscaling method to reconstruct the atmospheric variables necessary to force the ISBA-MODCOU hydrological component. The first stage of this work was to estimate and compare the bias and strengths of the two approaches in their ability to reconstruct the past decades. In this sense, SIM hydro-meteorological experiments were performed for some recent

  11. Changes in the geodiversity of Dutch peatlands inferred from 19th and 20th century landscape paintings

    Jungerius, Pieter Dirk; van den Ancker, Hanneke; Wevers, Nina

    2013-04-01

    Geodiversity is the natural and cultural range of geological, geomorphological and soil features. We analysed the large database of 19th and early 20th century paintings of Simonis and Buunk (www.Simonis-Buunk.com) to track changes in the geodiversity of Dutch peatlands since pre-photographic times. Peat dominated in two of the eight main landscapes of the Netherlands: the Lowland peats in the Holocene west and the Highland peats in the sandy Pleistocene eastern parts. Painters were mainly attracted by the lowland peats. Since more than thousand years, peat plays a major role in Dutch military security, economy, ecology and cultural life. Natural variety and cultural use resulted in a geodiversity that is unique in Europe. There are more than 100 place names with 'veen' (= peat), and surnames with 'veen' are common. Proof of the exploitation of peat for salt and fuel exists from the Roman times onwards. In the 9th century, peatlands were drained and reclaimed for growing wheat. Already in the 11th century, it was necessary to build dikes to prevent flooding, to control waterlevels to avoid further oxidation, and to convert landuse to grassland. But subsidence continued, and in the 14th century windmills were needed to drain the lands and pump the water out. In the 16th century industrial peat exploitation fuelled the rise of industries and cities. All this draining and digging caused the peat surface to shrink. The few remaining living peats are conserved by nature organisations. Geodiversity and landscape paintings In the peat landscapes, popular painting motives were high water levels, the grasslands of the 'Green Heart', the winding streams and remaining lakes. The paintings of landscapes where peat had been removed, show watermanagement adaptations: wind mills, different water levels, canals made for the transport of fuel, bridges, tow paths and the 'plassen', i.e. the lakes left after peat exploitation. The droogmakerijen (reclaimed lakes), now 2 to 5 m below

  12. EDITORIAL: The 20th European Sectional Conference on Atomic and Molecular Physics of Ionized Gases The 20th European Sectional Conference on Atomic and Molecular Physics of Ionized Gases

    Petrović, Zoran Lj; Marić, Dragana; Malović, Gordana

    2011-03-01

    This special issue consists of papers that are associated with invited lectures, workshop papers and hot topic papers presented at the 20th European Sectional Conference on Atomic and Molecular Physics of Ionized Gases (ESCAMPIG XX). This conference was organized in Novi Sad (Serbia) from 13 to 17 July 2010 by the Institute of Physics of the University of Belgrade. It is important to note that this is not a conference 'proceedings'. Following the initial selection process by the International Scientific Committee, all papers were submitted to the journal by the authors and have been fully peer reviewed to the standard required for publication in Plasma Sources Science and Technology (PSST). The papers are based on presentations given at the conference but are intended to be specialized technical papers covering all or part of the topic presented by the author during the meeting. The ESCAMPIG conference is a regular biennial Europhysics Conference of the European Physical Society focusing on collisional and radiative aspects of atomic and molecular physics in partially ionized gases as well as on plasma-surface interaction. The conference focuses on low-temperature plasma sciences in general and includes the following topics: Atomic and molecular processes in plasmas Transport phenomena, particle velocity distribution function Physical basis of plasma chemistry Plasma surface interaction (boundary layers, sheath, surface processes) Plasma diagnostics Plasma and discharges theory and simulation Self-organization in plasmas, dusty plasmas Upper atmospheric plasmas and space plasmas Low-pressure plasma sources High-pressure plasma sources Plasmas and gas flows Laser-produced plasmas During ESCAMPIG XX special sessions were dedicated to workshops on: Atomic and molecular collision data for plasma modeling, organized by Professors Z Lj Petrovic and N Mason Plasmas in medicine, organized by Dr N Puac and Professor G Fridman. The conference topics were represented in the

  13. Is susceptibility to chronic rheumatic heart disease determined in early infancy? An analysis of mortality in Britain during the 20th century

    Phillips, D I W; Osmond, C.

    2014-01-01

    Background: The reason why some individuals but not others are susceptible to rheumatic fever and chronic rheumatic heart disease is not understood. Because of the substantial evidence that poverty is an important determinant of the disease and must operate in early life, we have investigated the role of the early environment in an ecological study using 20th century mortality as an index of disease prevalence. Methods: We analysed 37,321 deaths from rheumatic heart disease in England and Wal...

  14. Votes Count but the Number of Seats Decides: A comparative historical case study of 20th century Danish, Swedish and Norwegian road policy

    Boge, Knut

    2006-01-01

    This dissertation about Danish, Swedish and Norwegian 20th century road policy is an attempt of elucidating some puzzles: Why did Norwegian authorities pursue a road policy contrary to most other West European industrialized countries? Why were highly noticeable congestion, accident and environmental problems within and near Norway’s major population clusters overlooked or ignored for decades? The theoretical and analytical framework is based on historical institutionalism supplem...

  15. Analysis of Early 20th century Chromatic Modal Music with the use of the Generative Theory of Tonal Music - Pitch Space and Prolongational issues in selected modal idioms

    Tsougras, Costas

    2009-01-01

    The Generative Theory of Tonal Music in its original form (Lerdahl & Jackendoff 1983) applied to music belonging to the Western tonal idiom only. However, during the last decade, theoretical and analytical research has been conducted on its application on diatonic or chromatic modal music. More specifically, Lerdahl addresses chromatic pitch spaces in chapters 6 & 7 of his "Tonal Pitch Space" (2001) and conducts analyses of late 19th century and 20th century music, while Temperley (The Cognit...

  16. Proceedings of a Joint Meeting held between The Norwegian Society of Infectious Diseases and the Royal Society of Tropical Medicine and Hygiene, Oslo, 20th June 2008

    Newport, Melanie J.; Myrvang, Bjorn

    2009-01-01

    The Royal Society of Tropical Medicine and Hygiene (RSTMH) has a tradition of holding joint meetings with fellow European Societies, providing opportunities to facilitate discussion, exchange information, foster mutual interests and develop collaboration between the societies’ members and fellows. This paper presents the proceedings from a scientific meeting that was held between The RSTMH and the Norwegian Infectious Diseases Society at Ulleval University Hospital, Oslo on 20th June 2008. Th...

  17. AN ANALYSIS OF THE DIFFERENTIATION STRATEGIES OF RURAL FOUNDRIES IN THE BEGINNING OF THE 20TH CENTURY IN THE PROVINCE OF QUEBEC

    Lisa Baillargeon; Patrice Gélinas

    2009-01-01

    The business model and strategic position of Quebec's rural foundries at the beginning of the 20th century is virtually unknown. Inferences have been made based on pictorial and oral data sources. This data reveals that successful rural foundries were, in essence, confined to producing and selling agricultural tools to local farmers on an as-needed basis, because large urban foundries were already mass-producing domestic and industrial objects. In contrast, use of detailed accounting records ...

  18. Land Use Change and Socio-Economic Evaluation in São Jorge Island (Between 15th and 20th Century)

    Dentinho, Tomaz; Serpa, Vanda; Silveira, Paulo; Goncalves, Joana

    2006-01-01

    The agenda explain the historical evolution of land uses in São Jorge Island (Azores- Portugal) between 15th-20th century.The economic exploitation of the island space prosecuted itself in simultaneous with his colony, one form to guarantee the auto supplying of the populations. First we assess the capacity of the island territory for different uses based on agronomic analysis and transform these capacities in attractiveness coefficients.Then we design a spatial interaction model with five di...

  19. Change of Spectral Analysis of Fetal Heart Rate During Clinical Hypnosis: a Prospective Randomised Trial from the 20th Week of Gestation Till Term

    Reinhard, J.; Hayes-Gill, B. R.; S Schiermeier; Hatzmann, W.; Heinrich, T. M.; Hüsken-Janßen, H.; E. Herrmann; Louwen, F.

    2012-01-01

    Objective: To investigate the functional adaptive process of the fetal autonomic nervous system during hypnosis from the 20th week of gestation till term. Are there changes in the power spectrum analysis of fetal heart rate when the mother is having a clinical hypnosis or control period? Study Design: Fourty-nine FHR recordings were analysed. Included recordings were from singletons and abdominal fetal ECG-monitored pregnancies. All women were randomised to receive clinical hypnosis followed ...

  20. Biblical Studies at the Kyiv Theological Academy (19th — early 20th Centuries): The Results and Prospects of the Research

    Golovashchenko, Sergiy

    2015-01-01

    This article presents a multiyear study undertaken by the author in a number of his research articles and monographs. For the first time in Ukrainian academic studies, the historical and theoretical reconstruction of biblical studies at the Kyiv Theological Academy in the 19th and early 20th centuries has been accomplished. This phenomenon is demonstrated and reviewed as a holistic system of research, instructional, theological, apologetic, religious and educational activity. Therefore, the h...

  1. The Concerns Underlying Sex Education for Young People in France During the First Half of the 20th Century: Morality, demography and public health

    Virginie De Luca Barrusse

    2011-01-01

    During the first half of the 20th century, the issue of sex education for young people was the topic of virulent debate. Increasing proposals for sex education in schools, along with lectures and information leaflets, were quickly opposed by Catholic circles, which did not reject sex education in principle but sought to control its form and content. Yet no matter which form or content was chosen, sex education remained underpinned by considerations about the future of the population and the s...

  2. Snow cover and permafrost evolution in Siberia as simulated by the MGO regional climate model in the 20th and 21st centuries

    An approach to ground thermodynamics description using a coupled system of atmospheric regional climate and ground heat transfer models is improved by accounting for the time varying snow density. The simulations are compared to available observational analyses, and the sensitivity of the ground thermal regime to variable snow density is analysed. Projected changes of the ground thermal regime in the 21st century relative to the late 20th century are shown and compared to earlier estimates.

  3. Assessing 20th century climate-vegetation feedbacks of land-use change and natural vegetation dynamics in a fully coupled vegetation-climate model

    Strengers, B.J.; C. Müller; Schaeffer, M.; Haarsma, R. J.; C. Severijns; Gerten, D.; Schaphoff, S.; Houdt, Van den, R.; Oostenrijk, R.

    2010-01-01

    This study describes the coupling of the dynamic global vegetation model (DGVM), Lund–Potsdam–Jena Model for managed land (LPJmL), with the general circulation model (GCM), Simplified Parameterizations primitivE Equation DYnamics model (SPEEDY), to study the feedbacks between land-use change and natural vegetation dynamics and climate during the 20th century. We show that anthropogenic land-use change had a stronger effect on climate than the natural vegetation's response to climate change (e...

  4. Snow cover and permafrost evolution in Siberia as simulated by the MGO regional climate model in the 20th and 21st centuries

    Shkolnik, I. M.; Nadyozhina, E. D.; Pavlova, T. V.; Molkentin, E. K.; Semioshina, A. A.

    2010-01-01

    An approach to ground thermodynamics description using a coupled system of atmospheric regional climate and ground heat transfer models is improved by accounting for the time varying snow density. The simulations are compared to available observational analyses, and the sensitivity of the ground thermal regime to variable snow density is analysed. Projected changes of the ground thermal regime in the 21st century relative to the late 20th century are shown and compared to earlier estimates.

  5. Studies of the Orthodox canon law in the Baltic area in the second half of the 19th/early 20th centuries

    Dorskaya A.

    2014-01-01

    This article analyses the emergence of canon law as a science and academic discipline in the Baltic area in the second half of 19th/early 20th centuries. The author emphasizes the role of the Tartu University in the organizational development of ecclesiastical law in legal education system of the Russian Empire. The article describes the general religious situation in the Baltic area and explores the role of the personality of a scientist in the development of a research area.

  6. Environmental Conflicts in Mining, Quarrying and Metallurgical Industries in the Iberian Peninsula (19th and 20th Century): Pollution and Popular Protest

    Guimarães, Paulo Eduardo

    2014-01-01

    ENVIRONMENTAL CONFLICTS IN MINING, QUARRYING, AND METALLURGICAL INDUSTRIES IN THE IBERIAN PENINSULA (19TH AND 20TH CENTURY): POLLUTION AND PUBLIC PROTEST. Paulo E. Guimarães, NICPRI / University of Évora (Portugal) J. D. Pérez Cebada, Universidad of Huelva (Spain) Comparative and transnational analyses of social conflicts, related to the environmental changes produced by modern and contemporary mining industries, have been a topic of growing academic interest for the last two decad...

  7. Polemics in natural sciences shaping local scientific styles in the Czech Lands at the turn of the 19th and 20th Centuries

    Štrbáňová, Soňa; Janko, Jan

    Mexico City : Sociedad Mexicana de Historia de la Ciencia y la Tecnologia , 2001. s. 234. [International Congress of History of Science, Symposium S3, Controversies and Disputes in Physical and Chemical Biology in the 19th and 20th Centuries /21./. 08.07.2001-14.07.2001, Mexico City] R&D Projects: GA MŠk LN00A041 Keywords : history * biology Subject RIV: AB - History

  8. Demographic situation in Vojvodina in the last decade of the 20th century and at the beginning of the 21st century

    Đurđev Branislav S.; Martinov-Cvejin Mirjana; Penev Goran; Jovanović Sonja; Stevanović Radoslav

    2004-01-01

    On the basis of the analyzed demographic data for the last decade of the 20th century and the beginning of the 21st century, one could conclude that the most significant characteristics of the population of Vojvodina are: slow demographic increase; negative population growth; more and more unfavourable age structure; increase in the decision to remain single; relatively low level of urbanization, a very heterogeneous national composition of the population; acceptance of low reproductive norms...

  9. Teacher training in the field of health promotion : a proposal for International collaboration and preparation of a symposium for the 20th IUHPE World Conference

    Jourdan, Didier; Simovska, V.; Valiama, R.; Pakkarár, L.; Simar, C.; Mannix-McNamara, P.; Samdal, O.; Viig, N.G.; Carvalho, Graça Simões; Diagne, F.; Guével, M-R.; Buijs, G.; Young, I

    2008-01-01

    Schools are considered to be settings for both health education and health promotion. But the core business of schools is actually focussed on educational outcomes, not reducing health problems. In most countries, schools give low priority to health promotion and school staffs, mainly teachers, are not aware of their role in health promotion. Studies show that teachers who have received health promotion training tend to be involved more frequently in health promotion projects and have a more ...

  10. Rockefeller and the internationalization of mathematics between the two world wars document and studies for the social history of mathematics in the 20th century

    Siegmund-Schultze, Reinhard

    2001-01-01

    Philanthropies funded by the Rockefeller family have been prominent in the social history of the twentieth century for their involvement in medicine and applied science. This book provides the first detailed study of their relatively brief but nonetheless influential foray into the field of mathematics. The careers of a generation of pathbreakers in modern mathematics, such as S.Banach, B.L.van der Waerden and André Weil, were decisively affected by their becoming fellows of the Rockefeller-funded International Education Board in the 1920s. To help promote cooperation between physics and mathematics Rockefeller funds supported the erection of the new Mathematical Institute in Göttingen between 1926 and 1929, while the rise of probability and mathematical statistics owes much to the creation of the Institut Henri Poincaré in Paris by American philanthropy at about the same time. This account draws upon the documented evaluation processes behind these personal and institutional involvements of philanthropies...

  11. Historical changes and future projections of precipitation and its extremes in the 20th and 21st century simulation by a 60-km mesh global atmospheric model

    Kitoh, A.; Kamiguchi, K.; Arakawa, O.; Kusunoki, S.

    2010-12-01

    Climate of the 20th century simulation was conducted with a 60-km mesh global atmospheric model (MRI-AM60km) from year 1872 to the present, forced with observed historical sea surface temperature and sea ice (HadISST1). Time variations of global and hemisphere average land surface air temperatures are reasonably well simulated in the 20th century. The number of simulated tropical cyclone in the whole globe has decreasing trend throughout the 20th century. Precipitation of the Monsoon Asia region is evaluated against the newly created daily gridded precipitation data set (APHRODITE), which improves topographic features in mountainous regions. The observed data set indicates a delay of the East Asian early summer rainy season (Baiu) in recent decades. The MRI-AM60km well reproduces this feature, but also shows multi-decadal variability. The same model is used for the future climate projections throughout the 21st century. Changes in mountainous precipitaion as well as extreme precipitation are also investigated.

  12. Mortality from Western cancers rose dramatically among African-Americans during the 20th century: are dietary animal products to blame?

    McCarty, M F

    2001-08-01

    Statistics compiled by the National Cancer Institute indicate that, between 1935 and 1974, age-adjusted mortality from most 'Western' cancers (those of the breast, colon, prostate, pancreas, ovary, and kidney) rose dramatically in African-Americans. This phenomenon is paralleled by marked increases in the incidence of these cancers in Asia and Southern Europe during the latter 20th century, in conjunction with increased intakes of dietary animal products. A credible case can be made that diets rich in animal products work in various complementary ways to up-regulate serum levels of insulin, free IGF-I, and free sex hormones: hormones that appear to have important promotional activity for Western cancers. It seems likely that dietary animal product intake by black Americans increased substantially during the 20th century, and that this fact is primarily responsible for their concurrent marked increase in mortality from Western cancers. A whole-food vegan diet rich in fruits and vegetables, especially if coupled with regular exercise and smoking avoidance, could be expected to have a remarkably positive impact on African-American cancer risk, reversing the increases in cancer risk incurred during the 20th century. PMID:11461167

  13. Does the Early Adopter of Drugs Exist? A Population Based Study of General Practitioners’ Prescribing of New Drugs.20 th International Conference on Pharmacoepiemiology and Risk Management. Bordeaux, France. Pharmacoepidemiology and Drug Safety, 2004;13:Sl 1:158

    Dybdahl, Torben; Andersen, Morten; Søndergaard, Jens; Kragstrup, Jakob; Sønbø Kristiansen, Ivar

    2004-01-01

    20 th International Conference on Pharmacoepiemiology and Risk Management. Bordeaux, France. Pharmacoepidemiology and Drug Safety, 2004;13:Sl 1:158......20 th International Conference on Pharmacoepiemiology and Risk Management. Bordeaux, France. Pharmacoepidemiology and Drug Safety, 2004;13:Sl 1:158...

  14. The decline of winter monsoon velocity in the South China Sea through the 20th century: Evidence from the Sr/Ca records in corals

    Liu, Yajing; Peng, Z.; Chen, T.; Wei, G.; Sun, W.; Sun, R.; He, J.; Liu, Gaisheng; Chou, C.-L.; Zartman, R.E.

    2008-01-01

    A modern massive Porites coral was collected from the Longwan Bay (19??20???N, 110??39???E) on the east coast of the Hainan Island, China. The coral was sectioned vertical to the growth axis into discs of double density-bands representing annual growth. The samples were analyzed for the Sr/Ca ratio by inductively coupled plasma atomic emission spectrometry. The history of winter sea-surface temperature (SST) is reconstructed using the Sr/Ca ratio in winter bands of corals. The winter SST at Xisha in the middle of the South China Sea (SCS) is weakly correlated with the instrument-measured winter monsoon velocity (WMV) with a correlation coefficient of 0.19. The winter SST data from corals at Longwan Bay, Hainan, in the northern SCS are moderately correlated with the WMV (r = 0.40). Interestingly we found that the difference of winter SSTs between the two sites (Xisha and Longwan Bay, Hainan) (the X-H index) is significantly negatively correlated with the WMV (r = - 0.73). This negative correlation may be related to the intrusion of the warm Kuroshio Current into the SCS through the Luzon Strait promoted by the strong northeastern monsoon winds in the winter. Using the relationship between our coralline data and observed WMV, the calculated winter monsoon velocity (WMVc) was obtained for 87??years. This data set in combination with the instrument-measured data between 1993 and 1998 generate a record of WMVc for a period of 93??years from 1906 to 1998. The WMVc in the 20th century shows significant interannual and decadal variability with a trend of persistent decline in the whole 20th century at the rate of decrease of - 0.02 (m/s)/a. The lowest wind velocity occurred during the last two decades of the 20th century. The WMVc has decreased significantly by about 30% from the early to the late of 20th century. The 20th century decline of winter monsoon velocity evidenced from the SCS coral records is consistent with the atmosphere-ocean general circulation models

  15. Banded vegetation-dune development during the Medieval Warm Period and 20th century, Chihuahuan Desert, New Mexico, USA

    With the advent of systematic high-resolution satellite photography, striking geometric shapes of banded vegetation several km2 in size, but not apparent from the ground, have been documented for many areas of the arid and semiarid world. Banded vegetation, in which dense perennial vegetation altern...

  16. PUBLICATIONS OF MYKOLAS BIRZISKA IN VILNIUS PRESS AT THE BEGINNING OF THE 20TH CENTURY: FEATURES OF THE INTELLECTUAL BIOGRAPHY

    Kvietkauskas, Mindaugas

    2006-01-01

    Mykolas Birziska (1882–1962) was a prominent Lithuanian scholar and politic, a signatory of the Act of Independence (1918), a member of Lithuanian Council (1917–1920), director of the first Lithuanian Gymnasium of Vytautas the Great in Vilnius (1915–1922), professor and rector of Kaunas and Vilnius universities. This articles deals with his early journalistic activities and editorship in the press in Vilnius before the outbreak of the First World War, and seeks to analyze the formation of his...

  17. The development of medical education in Eastern Europe during the 20th century and the emergence of 'English parallel' courses.

    Mayberry, J F

    2013-02-01

    This paper will explore the development of medical education in the Soviet Union, its underlying principles and the subsequent migration of this format into the countries of the Soviet Bloc following World War II. The impact of Perestroika and the collapse of the Warsaw Pact on university training and medical education in particular will be reviewed. The need for external funding as a factor in the emergence of English Parallel courses in Hungary, Czechoslovakia and subsequently in other countries will also be considered. PMID:23596029

  18. War, Peace and Security in the 20th Century. A Contemporary Reading of the Just War Theory

    Roxana Alexandra Costinescu

    2012-08-01

    Full Text Available War, in its various forms, still represents even in the XXI century a common manner for states as well as for ethnic, political and religious groups to settle disputes. The geopolitical context, marked by the al Qaeda attacks on the USA, and the multiple world events they determined lead to major changes for the armed violence character and simultaneously for its moral implications. Therefore, the present analysis subjects the relevance of the just war theory for the new international realities, the degree to which the theory needs a revision of its classical categories ius ad bellum and ius in bello or, on the contrary, an abandonment.

  19. The Ukrainian community of Western Siberia: specific features of formation and development in the 2nd half of the 19th – early 20th century

    Vladimir N. Shaidurov

    2016-03-01

    Full Text Available The agrarian crisis in the European part of the Russian Empire in the middle of the 20th century seriously impeded agricultural progress. Agrarian overpopulation and peasants deprived of land in the course of the peasant reform of 1861 further aggravated the negative situation in the governorates of Central Russia, Belarus, and left-bank Ukraine. These factors provided fertile soil for migratory sentiments among peasants. It was resettlement in vacant lands in the Asiatic Russia and North Caucasus, which allowed most of them to preserve their homesteads. In the 2nd half of the 19th – early 20th century, Ukrainian peasants were actively engaged in the migration movement which was supported by the state. One of the main placement areas became Western Siberia where a large Ukrainian peasant community was formed. The history of research on the Ukrainian community in Western Siberia is fragmentary, as many aspects remain unstudied. Hence, the article focuses on the following questions: causes of the Ukrainian migration to the border lands of the Russian Empire; stages in the migration; main areas where Ukrainians resided in Siberia; population dynamics of the Ukrainian community; adaptation patterns specific for Ukrainian migrants in their new places of residence; their role in the economic life of Siberia in the early 20th century. This article utilizes primary data from the All-Russian Agricultural and Land Census of 1917, which have been introduced for scientific use for the first time. As the methodological basis, the study draws on the system approach combining regional, neo-imperial and comparative principles.

  20. Affective World Literature

    Vilslev, Annette Thorsen

    The PhD dissertation compares the literary theory and novels of modern Japanese writer Natsume Sōseki. It reads Sōseki’s Theory of Literature (2009, Bungakuron, 1907) as an inherently comparative and interdisciplinary approach to theorizing feelings in world literature. More broadly, the...... dissertation investigates the critical negotiation of the novel as a travelling genre in Japan in the beginning of the 20th century, and, more specifically, Sōseki’s work in relation to world literature and affect theory. Sōseki’s work is highly influential in Japan and East Asia, and his novels widely...... circulated beyond Japan. Using Sōseki’s theory as an example, and by comparing it to other theories, the dissertation argues that comparative literature needs to include not only more non-Western literature but also more non-Western literary theories in the ongoing debate of world literature. Close...

  1. Paper presentation abstract: The multiple meanings and cultural aspects of the own-home garden in the early 20th century Sweden

    Jakobsson, Anna

    2015-01-01

    Gardening has multiple meanings depending on where and how it is performed as well as what purpose it is attributed. This paper will discuss the meanings and cultural aspects of own-home gardens in the early 20th century Swedish urban context. Stately loans were paid out in order for people to be able to build houses with gardens, so called own-homes, in the countryside or in the outskirts of cities in the early 1900s. A home of one's own, with a garden, had a positive effect on health and so...

  2. Maltreatment of people with serious mental illness in the early 20th century: a focus on Nazi Germany and eugenics in America.

    Fischer, Bernard A

    2012-12-01

    Prejudice and stigma against people with mental illness can be seen throughout history. The worst instance of this prejudice was connected to the rise of the eugenics movement in the early 20th century. Although the Nazi German T-4 program of killing people with mental illness was the most egregious culmination of this philosophy, the United States has its own dark eugenics history-nearing a slippery slope all too similar to that of the Nazis. Mental health care clinicians need to examine this period to honor the memory of the victims of eugenics and to guarantee that nothing like this will ever happen again. PMID:23197125

  3. From village to city through maps: historical cartographic materials as an information source on 20th century environmental changes due to urbanisation in Poland

    Nieścioruk Kamil

    2016-01-01

    The article presents the use of historical Polish post-war topographic maps and their usefulness in the detection and assessment of environmental changes caused by 20th century urbanisation. The case study area is the Polish city of Lublin. Two main research questions are defined and answered. The first is what kinds of maps can be used to trace environmental changes as well as to find the present-day remains of past environments and what is the reliability of these maps? Several series of to...

  4. An evaluation of 20th century climate for the Southeastern United States as simulated by Coupled Model Intercomparison Project Phase 5 (CMIP5) global climate models

    David E. Rupp

    2016-01-01

    The 20th century climate for the Southeastern United States and surrounding areas as simulated by global climate models used in the Coupled Model Intercomparison Project Phase 5 (CMIP5) was evaluated. A suite of statistics that characterize various aspects of the regional climate was calculated from both model simulations and observation-based datasets. CMIP5 global climate models were ranked by their ability to reproduce the observed climate. Differences in the performance of the models between regions of the United States (the Southeastern and Northwestern United States) warrant a regional-scale assessment of CMIP5 models.

  5. The making of a social, representative and intellectual police force - Recruitment and education of police trainees in Sweden during the 20th century

    Björn Furuhagen

    2015-01-01

    This article presents the development of recruitment and education of police trainees in Sweden during the 20th century. The aim is to analyse the efforts to promote a role for the police and a police force that would be more social, representative and intellectual. While this has been the goal during the last ten to fifteen years, this investigation shows that the roots of these efforts go back to the 1930s. The ideas underlying recruitment originally sought the ideal police among soldiers, ...

  6. The demarcation between Croatia and Bosnia and Herzegovina in the Una region from the 17th to the 20th century according to original cartographic material

    Mithad Kozličić

    2011-06-01

    Full Text Available The article presents the latest scientific research results regarding the presentation of what are nowadays Croatia and Bosnia and Herzegovina territories on geographic maps from the 17th to the 20th century. The focus is set on twenty maps that point to the most important tendencies. Particular attention is paid to wars and international treaties which regulated the demarcation of Una watercourse up to its confluence to the Sava as a centuries-old border between the Habsburg and the Ottoman empires.

  7. The Devil is free: Some religious imaginary features of people from Pácora in the first half of the 20th century

    Alberto Isaza Gil.

    2010-12-01

    Full Text Available This essay shows the use of exempla in Pácora (Caldas around the Devil’s role during the first decades of the 20th century. The author takes into account the oral tradition and holds interviews for offering his own understanding about Devil’s apparitions and beliefs within a religious and secular community context. The interpretation helps to understand this phenomenon under the Catholic Church impact and influence, within an isolated and closed community context, and that is part of the inhabitants’ everyday life and imaginary.

  8. Abrupt and severe 20th Century changes in the fire regimes of southeastern Australia: Evidence from a 3000 year multi-proxy analysis

    Baker, Patrick; Mooney, Scott; Allen, Kathryn; Willersdorf, Timothy

    2015-04-01

    Fire is the dominant natural disturbance in southeastern Australia. For millennia it has been the driving force shaping terrestrial ecosystems in the region -- simultaneously killing vegetation and initiating regeneration across whole landscapes. Fire regimes across the region are driven by several factors including climate, vegetation, and ignition sources. Humans have been a significant contributing factor to past and present fire regimes. Prior to European settlement in the late 1700s, Aboriginal Australians used frequent, low-intensity fires to manage vegetation across much of the landscape. European settlement led to the displacement of Aboriginal communities and a shift to active fire suppression and control. This changing approach to fire management is widely believed to have initiated a fundamental shift towards extreme, high-intensity fire events as fuel loads increased. In addition, during the 20th Century prolonged periods of warm, dry conditions have occurred with greater frequency and intensity. The relative importance of climate and fire management practices on contemporary fire regimes is vigorously debated in Australia and is directly relevant to land management policies and their implementation. To put the current fire regime into historical context, we used a multi-proxy approach combining palaeo-charcoal and tree-ring analyses to assess how fire regimes have changed over the last 3000 years in the Snowy Mountains region of southeastern Australia. We found almost no evidence of high-intensity fires in the 3000 years that preceded the 20th Century. However, in the mid-20th Century there is a sudden and dramatic increase in the presence of charcoal and the pulsed establishment of trees across the landscape, suggesting a recent shift from low-intensity fires with minimal charcoal signatures to moderate- to high-intensity fires with substantial charcoal inputs. Importantly, the tree-ring data demonstrate that most of these fires were not stand

  9. Curonian Ethnic Community at the End of 19th Century – 1st Half of 20th Century: Number, Location, Historical Processes

    Krišs Kapenieks

    2013-01-01

    The doctoral thesis „Curonian Ethnic Community at the End of 19th Century – 1st Half of 20th Century: Number, Location, Historical Processes“ has been written at the Chair of Modern and Contemporary History of Latvia and Eastern Europe of the Faculty of History and Philosophy, University of Latvia in 2006–2011. Author: Krišs Kapenieks. Supervisor: Ēriks Jēkabsons, Doctor of History, associate professor at the Chair of Modern and Contemporary History of Latvia and Eastern Europe of the Faculty...

  10. Achievements and new directions in subatomic physics: Festschrift in Honor of Tony Thomas 60th birthday

    On the occasion of his 60th birthday, this workshop honours the outstanding achievements and service to subatomic physics which Tony Thomas has made over a career spanning almost 4 decades. The workshop will review recent results and discuss new directions for nuclear and hadron physics, focusing on topics to which Tony has made significant contributions, such as pion-nucleon scattering, deep inelastic scattering, chiral extrapolations, quark models of the nucleon, and lattice QCD.

  11. RCNi award winner among the trailblazing nurses named in the Queen's birthday honours.

    2016-07-01

    Nurses were recognised in the birthday honours, with OBEs going to: » Pauline Watts, lead nurse, quality, mental health, learning disability and dementia at Public Health England, for services to nursing and health visiting » Gwen Moulster, co-chair of UK Nurse Consultants in Learning Disability Network and a winner of an RCNi learning disability award in May, for services to nursing and people with learning disabilities. PMID:27369704

  12. A tribute to Dr. Frank I Tovey on his 90th birthday

    Ma, Lian-Sheng

    2011-01-01

    This paper pays a tribute to Dr. Frank I Tovey on his 90th birthday which happens on September 1, 2011, and briefly describes the major findings in his research career and contributions as follows. The geographical prevalence of duodenal ulceration is related to staple diets. Unrefined wheat and maize, soya, certain pulses and millets are associated with a low prevalence while refined wheat, maize and rice, yams, cassava and green banana with a high prevalence. Predominant foodstuffs from low...

  13. Accounting Essays by Professor William W. Cooper: Revisiting in Commemoration of his Ninety‐Fifth Birthday

    YUJI IJIRI; TOSHIYUKI SUEYOSHI

    2010-01-01

    Over a career extending back to the late 1930s Professor William W. Cooper has published books and articles in the field of accounting, mathematics, operations research, management science, engineering, economics, public policy and the behavioural sciences, reflecting wide interdisciplinary scholarship. To commemorate his ninety-fifth birthday in 2009, we publish excerpts from twelve of his accounting essays, together with postscripts adding to their historical context. We also publish Thomas...

  14. See how people wished CERN a happy birthday with #MyCERN60

    Kate Kahle

    2014-01-01

    In the run up to 29 September, the hashtag #MyCERN60 gave CERN people and CERN’s followers on social media the chance to wish CERN a happy 60th birthday. Here are some of the highlights.   When tasked with wishing the European Laboratory for Particle Physics a happy 60th birthday, what would you do? Would you draw a picture? Bake a cake? #MyCERN60 on Twitter (EN, FR), Facebook, Google+ and social.cern.ch, gave people the opportunity to send a personal birthday greeting to the Organization. The results were heart-warming. Below is a selection of some of the messages received: Image credits: top left Sanam Ganjian via Google+, top right Rose Hannert via Twitter, middle left Anna P and Tina Nantsou via Facebook, middle right Francesco Palmonari via Twitter, bottom left  Smita Darmora via Facebook, bottom middle Hannah McClow via Twitter, bottom right Katya Chong via Twitter. Croatian students from the "Fran Galović" Koprivnica school celebrating CERN...

  15. PUBLICATIONS OF MYKOLAS BIRZISKA IN VILNIUS PRESS AT THE BEGINNING OF THE 20TH CENTURY: FEATURES OF THE INTELLECTUAL BIOGRAPHY

    Kvietkauskas, Mindaugas

    2006-12-01

    Full Text Available Mykolas Birziska (1882–1962 was a prominent Lithuanian scholar and politic, a signatory of the Act of Independence (1918, a member of Lithuanian Council (1917–1920, director of the first Lithuanian Gymnasium of Vytautas the Great in Vilnius (1915–1922, professor and rector of Kaunas and Vilnius universities. This articles deals with his early journalistic activities and editorship in the press in Vilnius before the outbreak of the First World War, and seeks to analyze the formation of his intellectual and political attitudes. In 1905, being a member of the Party of Lithuanian Social Democrats, Birziska began his journalistic career in socialist press. In 1906 heedited a party newspaper “Echo” in Polish language, where his specific interest in cooperation between different nationalities first became vivid. At the same time he began contributing to theliberal and antinationalist newspaper of the Polish krajovtsy movement “Gazeta Wileñska” (edited by Michal Römer, that argued for the political equality and tolerant cultural coexistence of allthe national groups in Lithuania. After the closure of “Gazeta Wileñska”, Birziska in 1907–1908 cooperated with another liberal daily in Russian language “Severo-Zapadnyj Golos”. Writing in threelanguages and simultaneously contributing to Lithuanian, Polish, and Russian press, Birziska exercised a specific role of a publicist as a mediator between different cultural groups in the multinational city. Professional analysis of the national conflicts, the principals of cultural tolerance and liberal antinationalist outlooks became the dominant features of his trilingual journalistic texts. Consequently, Birziska seeked to realize these intellectual attitudes working at the Lithuanian daily “Vilniaus zinios” in 1908 and especially editing the journal “Visuomene” (1910–1911 for the Lithuanian leftist intelligentsia. Birziska’s journalistic activities and his early intellectual

  16. A Time-Series Analysis of the 20th Century Climate Simulations Produced for the IPCC’s Fourth Assessment Report

    Estrada, Francisco; Perron, Pierre; Gay-García, Carlos; Martínez-López, Benjamín

    2013-01-01

    In this paper evidence of anthropogenic influence over the warming of the 20th century is presented and the debate regarding the time-series properties of global temperatures is addressed in depth. The 20th century global temperature simulations produced for the Intergovernmental Panel on Climate Change’s Fourth Assessment Report and a set of the radiative forcing series used to drive them are analyzed using modern econometric techniques. Results show that both temperatures and radiative forcing series share similar time-series properties and a common nonlinear secular movement. This long-term co-movement is characterized by the existence of time-ordered breaks in the slope of their trend functions. The evidence presented in this paper suggests that while natural forcing factors may help explain the warming of the first part of the century, anthropogenic forcing has been its main driver since the 1970’s. In terms of Article 2 of the United Nations Framework Convention on Climate Change, significant anthropogenic interference with the climate system has already occurred and the current climate models are capable of accurately simulating the response of the climate system, even if it consists in a rapid or abrupt change, to changes in external forcing factors. This paper presents a new methodological approach for conducting time-series based attribution studies. PMID:23555866

  17. Natural stones and types of tombstones in National cemetery in Martin from half of the 19th to half of the 20th century

    Daniel Pivko

    2013-12-01

    Full Text Available About 500 tombstones from National cemetery in Martin were carried out. The cemetery represents section through sepulchral architecture in the 19th and 20th centuries and records history of natural stones use and tombstone evolution. From c. 1850, classicistic steles were produced from Gerecse marble and Banská Bystrica sandstone. Historicist steles of Silesian marble were imported from 1870s. End of 1880s years, variability of tombstone appearance began to grow. Outlined text, carved text fields, ornaments and new typefaces were emerged. In 90s years Carrara marble is imported. Real variousness of tombstone face is typical for first 20 years of the 20th century, when hard natural stones (Silesian granite, Swedish dolerite, and Norwegian larvikite are widely used. Besides them domestic Cenozoic conglomerates, Banská Bystrica sandstone and Bohemian Hořice sandstone were utilized. From 20s years to half of the century, variability of natural stones decreased at the expense of Swedish dolerite. Variety of tombstone shapes grew from decorated secession steles, through geometric functionalistic compositions, to simple tabular tombstones.

  18. Bookseller’s Classification: Classification Examples and Criteria of Croatian Booksellers in Sales Catalogs and Book Lists from the Beginning of the 20th Century

    Nada Topić

    2012-12-01

    Full Text Available The aim of the paper is to conduct research on the topic of ways of bookstore (sales classification of Croatian bookstores from the beginning of the 20th century. By content analysis of the 17 sales lists/catalogs of books from Dubrovnik, Split, Zadar, Karlovac, Zagreb and Osijek, the classification structure has been reconstructed, and the criteria according to which the booksellers offerings have been classified in the early 20th century have been determined. Conducting of the analysis established the following criteria of the bookstore classification: topic/content, form/type of work, type of corpus, genre, language, purpose, publishing series, publisher, time of publication, (new edition, time of publication/purchase, customer's specific interests, number, letter and author. Order of enumeration within specific categories is mostly alphabetic, numeric or according to order of publication. Unlike the library classification and classification systems in general, the problematics of bookstore classification is not very present in the current existing sources. Research studies that focus on the history of bookselling, even if they reveal ways of classification of booksellers offers remain on a descriptive level without any deeper analysis of the criteria or possible reasons of such classification. Therefore, the contribution of the paper is a detailed analysis of a larger pattern of bookstore sales catalogs, and also an attempt of illuminating the criteria and reasons of creating a system of bookstore classification in the defined historical, spatial and time context.

  19. Progress in China's climate change study in the 20th century%20世纪中国气候变化研究

    翟盘茂; 巢清尘; 邹旭恺

    2004-01-01

    Studies on the 20th century climate change in China have revealed that under the background of global warming over the past century,climate in China has also experienced significant change with mean annual temperature increased by about 0.5 °C.More reliable results for the latter part of the 20th century indicate that the largest warming occurred in Northwest China,North China and Northeast China,and the warming in winter is most significant.Although no obvious increase or decrease trends were detected for mean precipitation over China in the past half century,regional differences are very distinct.In the middle and lower reaches of the Yangtze River,precipitation increased,while that in the Yellow River Basin markedly decreased.Studies suggest that climate change in China seems to be related not only with the internal factors such as ENSO,PDO,and the others,but also with the anthropogenic effects such as greenhouse gas emissions,and land use.The future climate change studies in China seem to be important in narrowing understanding the nature of China's climate change and its main causes,since it is significant for projection and for impact assessment of climate change in the future.

  20. The place occupied by early measurement (20th minute) of the thyroid uptake of sup(99m)Tc pertechnetate in thyroid pathology

    The place occupied by early measurement (20th minute) of the thyroid uptake of sup(99m)Tc pertechnetate is situated for different types of thyroid condition (hypo-, normo- and hyperthyroidism). The use of technetium is simple in practice because only the cervical and crural radioactivity measurements are required. Like all simplified methods it involves risks of errors but lends itself to systematic routine use. The practical advantages of this isotope, which in view of its short half-life appears with iodine 123 as the nearly ideal tracer for thyroid exploration at present are outlined. The thyroid gland can be studied both functionally and scintigraphically at the cost of minimum irradiation, which is a great advantage. The fact that a number of data may be obtained in less than an hour (including scintigraphy) is a particularly valuable asset. However the method has its limits. For example a diagnosis of hyper or hypothyroidism based on the technetium uptake at the 20th minute alone is out of the question. A zero uptake may be observed in the presence of Basedow's disease or conversely a high uptake in hypo- or euthyroid cases. Discrimination is satisfactory between hyper and euthyroid but not between eu- and hypothyroid subjects. Technological progress however promises a routine use of 123 I and 99mTc together, the two isotopes serving to explore two different phases of the thyroid metabolism

  1. Evolution of the Arctic and Antarctic sea ice over the 20th and 21st centuries as simulated by CMIP5 models

    Philippon-Berthier, G.; Fichefet, T.; Goosse, H.; Massonnet, F.

    2011-12-01

    Results from simulations conducted with the CMIP5 atmosphere-ocean general circulation models are used to study the evolution of the Arctic and Antarctic sea ice covers over the 20th and 21st centuries. We first assess the ability of the individual models and the multi-model mean to reproduce the average seasonal cycle, the interannual variability and the longer-term changes of the Arctic and Antarctic sea ice extents and volumes over the late 20th century. A performance metric based on observations is proposed and applied to all available models with the aim of selecting those that yield the most realistic behavior of both ice packs. Outputs from the selected models are then thoroughly analyzed to better understand the sharp decline of the Arctic sea ice area coverage observed during the last decades and to determine the causes of the recent increase in Antarctic sea ice extent. Second, we project with each individual model and the multi-model mean the response of the Arctic and Antarctic sea ice extents and volumes over the 21st century to the RCP2.6, RCP4.5, RCP6 and RCP8.5 forcing scenarios. Models that meet the performance criteria defined by the metric are finally used to reduce uncertainties regarding the date of disappearance of the summer Arctic sea ice.

  2. Permafrost and Climate Change: Here Today, Gone Tomorrow. A Coupled Climate Model Projection for the 20th and 21st Centuries.

    Lawrence, D. M.; Slater, A. G.

    2005-12-01

    The representation of permafrost is examined in a fully coupled climate model, the Community Climate System Model version 3 (CCSM3). Permafrost and frozen ground is explicitly modeled in CCSM3, including interactive hydrology. We examine five member ensembles of CCSM3 integrations of 20th century climate as well as a number of IPCC SRES emission scenarios, including the A2 and commitment scenarios, that were conducted at NCAR in support of the fourth IPCC assessment report (AR4). Permafrost during the late 20th century is reasonably simulated in CCSM3, particularly in terms of the spatial extent which agrees well with observational estimates. Under the A2 emission scenario, permafrost, excluding the Antarctic and Greenland ice sheets, nearly completely disappears by the end of the 21st century. The impact of the dramatic loss of permafrost on surface fluxes of moisture and energy and on runoff to the Arctic Ocean is assessed. Among other impacts, total column soil water decreases, despite significantly stronger precipitation, due to enhanced drainage through the ice-free soil column. However, despite the fact that column soil water is reduced, there is more liquid soil water available for plants. The potentially positive climate feedback related to the likely increase in methane emissions from the newly active soil carbon pools will also be discussed.

  3. Modes of multi-decadal oceanic precipitation variations from a reconstruction and AR4 model output for the 20th century

    Smith, T.; Sapiano, M.; Arkin, P.

    2009-07-01

    Monthly oceanic precipitation variations are available from satellite observations beginning 1979 and from models for earlier periods, and both the observations and models indicate increasing global-average precipitation with warming global temperatures. Recently the authors developed an indirect data-based reconstruction of precipitation beginning 1900, which is used here to analyze near-global average multi-decadal oceanic variations through the 20th century. We compare this new reconstruction to oceanic coupled-model precipitation from AR4 models beginning 1900, and to GPCP precipitation beginning 1979. Both the reconstruction and AR4 models indicate increasing precipitation over the 20th century. The reconstruction increase is stronger than the AR4 increase largely due to a climate shift in the 1970s that is resolved by the reconstruction but absent in the AR4 ensemble. The reconstruction climate shift has an ENSO-like spatial pattern and in the reconstruction the shift is associated with an ENSO mode, consistent with work done by others. The influence of this mode indicates the need for coupled models to accurately simulate the tropical Pacific in order to resolve that region's influence on multi-decadal variations.

  4. 20 世纪中国音乐美学现代部分研究%Study on Contemporary Chinese Aesthetics of Music in the 20 th Century

    杨和平

    2015-01-01

    With contemporary Chinese aesthetics of music in the 20 th century as the research object and based on a large number of literature and historical materials , the paper tries to make a dynamic grasp of the nature of music , the value of music , music form and content , aesthetics of music at home and abroad , process of music practice , aesthetic education practice , music criticism , music psychology and translated works of aes-thetics of music on a macro level , which aims to promote the development of Chinese aesthetics of music in the 20 th century .%本文以20世纪中国音乐美学现代部分为研究对象,在搜集整理阅读分析大量文献史料的基础上,力图对音乐存在的本质、音乐的价值功能、音乐形式与内容、中外音乐美学史、音乐实践的诸环节、美育实践、 音乐批评、音乐心理以及音乐美学的译文译著等,进行宏观有机动态的理论把握,旨在推进20世纪中国音乐美学学科的发展.

  5. The investigation of ionospheric response to total eclipses on 29th March, 2006 and on 20th March, 2015 based on HF oblique sounding data

    Vertogradov, G. G.; Vertogradova, E. G.

    2016-09-01

    The investigation of ionosphere response to solar eclipses was carried out. Maximum observable frequencies were analyzed during two eclipses on 29th March, 2006 and on 20th March, 2015 on several oblique sounding paths which were within the range of solar flux obscuration. The model describing local changes in the ionosphere, caused by the obscuration of solar flux during eclipse, is suggested. The computer simulation of HF radiowave propagation during the eclipses was carried out on the basis of this model, while quiet ionosphere was described by IRI-2012 model. It is shown that this approach gives adequate description of HF channel during eclipses for all propagation paths under consideration while the parameters of the model were the same for all paths. As the result of computer simulation time delays of ionosperic responses during eclipses were obtained (~1800-2000 s). It was found that maximum depletion of electron concentration reached 85% in D-region for both eclipses. The electron density depletions at height of F2-peak were 48% and 34% for eclipse on 29th March, 2006 and on 20th March, 2015 respectively.

  6. Ankylosing spondylitis or diffuse idiopathic skeletal hyperostosis in royal Egyptian mummies of 18th -20th Dynasties? CT and archaeology studies.

    Saleem, Sahar N; Hawass, Zahi

    2014-12-01

    Objective. To study the computed tomography(CT) images of royal Ancient Egyptian mummies dated to the 18th to early 20th Dynasties for the claimed diagnoses of ankylosing spondylitis (AS) and diffuse idiopathic skeletal hyperostosis (DISH) and to correlate the findings with the archaeology literature.Methods. We studied the CT images of 13 royal Ancient Egyptian mummies (1492–1153 BC) for evidence of AS and DISH and correlated our findings with the archaeology literature.Results. The findings of the CT scans excluded the diagnosis of AS, based on the absence of sacroiliac joint erosions or fusion of the facet joints. Four mummies fulfilled the diagnostic criteria for DISH:Amenhotep III (18th Dynasty), Ramesses II, his son Merenptah, and Ramesses III (19th to early 20th Dynasties).The diagnosis of DISH, a commonly a symptomatic disease of old age, in the 4 pharaohs is in concordance with their longevity and active lifestyles.Conclusion. CT findings excluded the diagnosis of AS in the studied royal Ancient Egyptian mummies and brought into question the antiquity of the disease. The CT features of DISH during this ancient period were similar to those commonly seen in modern populations,and it is likely that they will also be similar in the future.The affection of Ramesses II and his son Merenptah supports familial clustering of DISH. The process of mummification may induce changes in the spine that should be considered during investigations of disease in ancient mummies. PMID:25329920

  7. Social and Political Activization of the Don Nobility in the Early 20th Century and “Noble Liberalism”

    Bratolyubova Mariya Viktorovna

    2014-03-01

    Full Text Available Peculiarity of the social, economic and legal status of the Don nobility influenced its political alertness and the opposition character of activity. The liberal wing supported the creation of a new world outlook system which was expected to provide the basis for transforming the political system by means of gradual transition to people’s representatives or constitutional form of government. The liberal landowners insisted on the introduction of zemstvo (district council, the solution of the Cossack issue; they strived for liberalization of the military and bureaucratic control of the Cossack troops and demanded the withdrawal of civil government agencies from the competence of the Military department. The liberal nobility actively supported the change of conditions of service for the Cossacks and pressed for easier draft obligation and releasing the Cossack troops from police duties which clashed with the military dignity. The conservative type of liberalism prevailed within the noble class of the DHR that distanced itself from both the left and the right political forces. The liberalism of the Don nobles was also a reflection of social and cultural peculiarities of the Cossacks. The social basis of the Don liberalism differed from the common Russian analogs. As the Cossack class was rather numerous at the Don, and its representatives made up quite an important part of the regional liberal corporation, they influenced its tactics and the political programming considerably.

  8. Trace elements in South America aerosol during 20th century inferred from a Nevado Illimani ice core, Eastern Bolivian Andes (6350 m a.s.l.

    J.-D. Taupin

    2003-05-01

    Full Text Available A 137 m ice core drilled in 1999 from Eastern Bolivian Andes at the summit of Nevado Illimani (16° 37' S, 67° 46' W, 6350 m a.s.l. was analyzed at high temporal resolution, allowing a characterization of trace elements in Andean aerosol trapped in the ice during the 20th century. The upper 50 m of the ice core were dated by multi-proxy analysis of stable isotopes (d18O and d2H, 137Cs and Ca+2 content, electrical conductivity, and insoluble microparticle content, together with reference historical horizons from atmospheric nuclear tests and known volcanic eruptions. This 50 m section corresponds to a record of environmental variations spanning about 80 years from 1919 to 1999. It was cut in 744 sub-samples under laminar flow in a clean bench, which were analyzed by Ion Chromatography for major ionic concentration, by a particle counter for insoluble aerosol content, and by Inductively Coupled Plasma Mass Spectrometry (ICP-MS for the concentration of 45 chemical species from Li to U. This paper focuses on results of trace element concentrations measured by ICP-MS. The high temporal resolution used in the analyses allowed classifying samples as belonging to dry or wet seasons. During wet season elemental concentrations are low and samples show high crustal enrichment factors. During dry seasons the situation is opposite, with high elemental concentrations and low crustal enrichments. For example, with salt lakes as main sources in the region, average Li concentration during the 20th century is 0.035 and 0.90 ng g−1 for wet and dry seasons, respectively. Illimani average seasonal concentration ranges cover the spectrum of elemental concentration measurements at another Andean ice core site (Sajama for most soil-related elements. Regional crustal dust load in the deposits was found to be overwhelming during dry season, obfuscating the contribution of biomass burning material. Marked temporal trends from the onset of 20th century to more recent

  9. Trace elements in South America aerosol during 20th century inferred from a Nevado Illimani ice core, Eastern Bolivian Andes (6350 m asl

    A. Correia

    2003-01-01

    Full Text Available A 137 m ice core drilled in 1999 from Eastern Bolivian Andes at the summit of Nevado Illimani (16º 37' S, 67º 46' W, 6350 m asl was analyzed at high temporal resolution, allowing a characterization of trace elements in Andean aerosol trapped in the ice during the 20th century. The upper 50 m of the ice core were dated by multi-proxy analysis of stable isotopes (d18O and d2H, 137Cs and Ca+2 content, electrical conductivity, and insoluble microparticle content, together with reference historical horizons from atmospheric nuclear tests and known volcanic eruptions. This 50 m section corresponds to a record of environmental variations spanning about 80 years from 1919 to 1999. It was cut in 744 sub-samples under laminar flow in a clean bench, which were analyzed by Ion Chromatography for major ionic concentration, by a particle counter for insoluble aerosol content, and by Inductively Coupled Plasma Mass Spectrometry (ICP-MS for the concentration of 45 chemical species from Li to U. This paper focuses on results of trace element concentrations measured by ICP-MS. The high temporal resolution used in the analyses allowed classifying samples as belonging to dry or wet seasons. During wet season elemental concentrations are low and samples show high crustal enrichment factors. During dry seasons the situation is opposite, with high elemental concentrations and low crustal enrichments. For example, with salt lakes as main sources in the region, average Li concentration during the 20th century is 0.035 and 0.90 ng g-1 for wet and dry seasons, respectively. Illimani average seasonal concentration ranges cover the spectrum of elemental concentration measurements at another Andean ice core site (Sajama for most soil-related elements. Regional crustal dust load in the deposits was found to be overwhelming during dry season, obfuscating the contribution of biomass burning material. Marked temporal trends from the onset of 20th century to more recent years

  10. [Asbestos at the time of the First World War].

    Bianchi, C; Bianchi, T

    2015-01-01

    Between the end of the 19th century and the beginning of the 20th numerous asbestos industries began operations in various parts of the world. At the time of the First World War there is ample evidence of the use of this mineral in shipbuilding, the aircraft industry and in the construction industry. In the years 1912-17 the writer Franz Kafka was co-proprietor of a small asbestos factory in Prague. Some of the writer's novels and journal pages were inspired by this experience. In this way asbestos entered into the history of 20th century European literature. In 1917 asbestos extraction was started at the quarry in Balangero, near Turin, Italy. Risks related to the use of asbestos were known at the beginning of the 20th century and legislation aimed at preventing the harmful effects of the mineral were approved in Italy. PMID:26621063

  11. 20th July 2011 - Ambassador Bhattarai, Permanent Representative of Federal Democratic Republic of Nepal and familiy members in the ATLAS visitor centre with Collaboration Spokesperson A. Lankford, accompanied by Adviser J. Ellis.

    Maximilien Brice

    2011-01-01

    20th July 2011 - Ambassador Bhattarai, Permanent Representative of Federal Democratic Republic of Nepal and familiy members in the ATLAS visitor centre with Collaboration Spokesperson A. Lankford, accompanied by Adviser J. Ellis.

  12. [A pragmatic alliance. Jewisch-Lithuanian political cooperation at the beginning of the 20th century. Hrsg. von Vladas Sirutavičius, Darius Staliūnas] / Karsten Brüggemann

    Brüggemann, Karsten, 1965-

    2013-01-01

    Arvustus: A pragmatic alliance. Jewisch-Lithuanian political cooperation at the beginning of the 20th century. Hrsg. von Vladas Sirutavičius und Darius Staliūnas. Verlag CEU Press. Budapest und New York, 2011

  13. [Russland an der Ostsee - Russia on the Baltic. Imperiale Strategien der Macht und kulturelle Wahrnehmungsmuster (16. bis 20. Jahrhundert) - Imperial Strategies of Power and Cultural Patterns od Perception (16th - 20th Centuries)] / Olaf Mertelsmann

    Mertelsmann, Olaf, 1969-

    2015-01-01

    Arvustus: Russland an der Ostsee : imperiale Strategien der Macht und kulturelle Wahrnehmungsmuster (16. bis 20. Jahrhundert) = Russia on the Baltic : imperial strategies of power and cultural patterns of perception (16th-20th centuries). Wien [etc.] : Böhlau, 2012

  14. Variability on different time scales of Extra-tropical Cyclones and Windstorms in latest 20th century reanalyses ERA-20C and NOAA-20CR

    Befort, Daniel J.; Wild, Simon; Kruschke, Tim; Ulbrich, Uwe; Leckebusch, Gregor C.

    2016-04-01

    Extra-tropical cyclones and wind storms are responsible for a large portion of damages all around the globe. Thus, knowledge about the temporal variability of these events during the past is of high socio-economic importance. In this study, the temporal variability of extra-tropical cyclones and wind storms during the past century are analysed using ERA-20C and NOAA-20CR reanalysis datasets. Cyclones are identified using six hourly mean sea level pressure fields whereas wind storms are identified based on near-surface wind speeds. Analyses focus on wintertime events over both hemispheres and also for several subregions. Long-term trends as well as higher-frequency variability are investigated. Therefore, cyclone and wind storm time series are low-pass filtered with a cut-off frequency of 1/31 years using 31 weights and the high-frequency time series are obtained by calculating the residuum of the original and low pass-filtered time series. To analyse long-term trends, a linear regression model is fitted to the original time series for three different periods: 1901-1930, 1931-1960 and 1961-1999. Results suggest substantial differences regarding long-term trends between ERA-20C and NOAA-20CR for cyclones and wind storm events, especially during the first half of the 20th century. In general, a better agreement is found for extreme cyclones compared to all cyclones. Furthermore, high-frequency variability over the Northern Hemisphere is in good agreement for cyclones and wind storms over most regions and throughout the century, with the highest correlations found at the end of the 20th century. Analyses for the Southern Hemisphere show smaller agreement between ERA-20C and NOAA-20CR for cyclone and wind storms regarding their high-frequency variability. The results of this study indicate that no reliable conclusion regarding long-term variability of cyclones and wind storms can be drawn, based on solely these two 20th century reanalysis products. However, analyses

  15. Explaining the spread of CMIP5 climate models in global-mean thermosteric sea level rise over the 20th and 21st centuries

    Melet, Angelique; Meyssignac, Benoit; Salas y Melia, David

    2015-04-01

    The ocean stores more than 90% of the energy excess associated with anthropogenic climate warming. The resulting warming and thermal expansion of the ocean is a leading contributor to sea level rise. Confidence in projections of global mean sea level rise therefore depends on the ability of climate models to reproduce ocean warming and induced global mean thermosteric sea level (GMTSL) over the 20th century. This study aims at explaining and trying to reduce the spread of GMTSL across climate models of the Coupled Models Intercomparison Project Phase 5 (CMIP5) over the 20th and 21st centuries. We first show that the GMTSL rise computed from climate models is approximately proportional to the radiative forcing. The constant of proportionality mostly depends on the climate feedback parameter and the ocean heat uptake efficiency. From that linear relationship, we show that the spread in the net top-of-atmosphere radiative flux (N) explains most of the spread in projections of the GMTSL. The inter-model spread of N is itself mostly explained by the spread in the radiative forcing changes while the spread in climate feedback parameter and ocean heat uptake efficiency play a smaller role. We then compare GMTSL from climate models to observational estimates over the 1961-2005 period. Although the model-ensemble mean is within the uncertainty of observations, a significant number of models consistently overestimate or underestimate the observed GMTSL rise. The contribution of the deep ocean (below 700 m depth) to GMTSL is largely spread among climate models (33 ± 28% over 1900-2005). Selecting the sub-ensemble of models that conserve the energy in the climate system and are within the observational estimates of GMTSL reduces that spread and leads to a contribution of 35 ± 10%. The uncertainty in projected GMTSL in 2100 can also be reduced with a selection of climate models based on the comparison of the climate feedback parameters, ocean heat uptake efficiencies and 20th

  16. The 20th-Century Topographic Survey as Source Data for Long-Term Landscape Studies at Local and Regional Scales

    Varanka, Dalia

    2006-01-01

    Historical topographic maps are the only systematically collected data resource covering the entire nation for long-term landscape change studies over the 20th century for geographical and environmental research. The paper discusses aspects of the historical U.S. Geological Survey topographic maps that present constraints on the design of a database for such studies. Problems involved in this approach include locating the required maps, understanding land feature classification differences between topographic vs. land use/land cover maps, the approximation of error between different map editions of the same area, and the identification of true changes on the landscape between time periods. Suggested approaches to these issues are illustrated using an example of such a study by the author.

  17. French school of neurology in the 19 th and first half of the 20th century, and its influence in Brazil

    Marleide da Mota Gomes

    2013-10-01

    Full Text Available French medicine was of the utmost importance for the birth of modern medicine and neurology in the 19 th century. Innovative approaches, such as examination at the bedside, the use of the stethoscope, techniques of auscultation, palpation, and close patient examination, besides emphasis on anatomical-clinical correlation and observation of the outcome of the disease, were put into practice. French medicine offered professional training and incentives for the beginnings of Brazilian neurology and psychiatry. Returning from France, many Brazilian physicians implemented what they had learned, mainly in Paris. The most important pupils of the French neurology schools in Brazil during the 19 th century and first half of the 20 th century include names like Antonio Austregesilo, Aloysio de Castro, Enjolras Vampré, and Deolindo Couto, founders of the leading Brazilian neurological schools, directly influenced by Dejerine, Pierre Marie, Guillain and Babinski.

  18. Proceedings of the 24th Day of Scientific lectures and 20th Annual Meeting of the National Society of Black Physicists

    Jackson, K.H; Carwell, H.V.

    1999-11-29

    The National Society of Black Physicists will hold its Twentieth annual meeting and its XXIIII Day of Scientific Lectures at Lawrence Berkeley National Laboratory on March 27th - 30th, 1997. The meeting provides a major opportunity for African American physicists and students to present their current research and discuss issues germane to the constituency. It is therefore crucial to have the broadest cross-section of the membership at each meeting. The Lawrence Berkeley National Laboratory was chosen as the site of the 20th annual meeting because of its historical significance to Physics (being one of the first national laboratories in the United States) and the laboratories continuing support of the goals and objectives of the society.

  19. Proceedings of the F-8 Digital Fly-By-Wire and Supercritical Wing First Flight's 20th Anniversary Celebration. Volume 2; Bibliography Appendices

    Hodge, Kenneth E. (Compiler); Kellogg, Yvonne (Editor)

    1996-01-01

    A technical symposium, aircraft display dedication, and pilots' panel discussion were held on May 27, 1992. to commemorate the 20th anniversary of the first flights of the F-8 Digital Fly-By-Wire (DFBW) and Supercritical Wing (SCW) research aircraft. The symposium featured technical presentations by former key government and industry participants in the advocacy, design, aircraft modification, and flight research program activities. The DFBW and SCW technical contributions are cited. A dedication ceremony marked permanent display of both program aircraft. The panel discussion participants included eight of the eighteen research and test pilots who flew these experimental aircraft. Pilots' remarks include descriptions of their most memorable flight experiences. The report also includes a survey of the Gulf Air War, an after-dinner presentation by noted aerospace author and historian Dr. Richard Hallion.

  20. Proceedings of the F-8 Digital Fly-By-Wire and Supercritical Wing First Flight's 20th Anniversary Celebration. Volume 1

    Hodge, Kenneth E. (Compiler)

    1996-01-01

    A technical symposium, aircraft display dedication, and pilots' panel discussion were held on May 27, 1992, to commemorate the 20th anniversary of the first flights of the F-8 Digital Fly-By-Wire (DFBW) and Supercrit- ical Wing (SCW) research aircraft. The symposium featured technical presentations by former key government and industry participants in the advocacy, design, aircraft modification, and flight research program activities. The DFBW and SCW technical contributions are cited. A dedication ceremony marked permanent display of both program aircraft. The panel discussion participants included eight of the eighteen research and test pilots who flew these experimental aircraft. Pilots' remarks include descriptions of their most memorable flight experiences The report also includes a survey of the Gulf Air War, and an after-dinner presentation by noted aerospace author and historian Dr. Richard Hallion.

  1. Preconditions and Reasons of Religions Educational and Missionary Activities of the Russian Orthodox Church in the Late 19th – Early 20th Centuries

    Yelena D. Mikhailova

    2014-12-01

    Full Text Available The article is devoted to studying the reasons and preconditions for religions, educational and missionary activities of the Russian Orthodox Church in the late 19th – early 20th centuries. Basing on the archive records, the author shows that most important preconditions for enhancing religions – educational activities were the following: the destruction of traditional patriarchal life of the masses, which was based on religions values, the need to overcome “religions ignorance” of a significant part of Orthodox population, the rapid religions dissent in the Russian Empire. Analysis of reasons for their wide spread shows that it wasn’t the cause of foreign influence or any kind of social protest. Studying contemporary opinions as well as specific facts of provincial parish life led to the conclusion that there existed a wide complex of preconditions that influenced the growth of “protest” forms of religion.

  2. The role of deep processes in late 20th century subsidence of New Orleans and coastal areas of southern Louisiana and Mississippi

    Dokka, Roy K.

    2011-06-01

    Geodetic leveling observations from Biloxi, MS, to New Orleans, LA, and water level gauge measurements in the New Orleans-Lake Pontchartrain area were analyzed to infer late 20th century vertical motions. These data were used to test the validity of previous subsidence rate measurements and the models that predict the location and causes of subsidence. Water gauges attached to bridge foundations and benchmarks affixed to deep rods that penetrate Holocene strata subsided as much as 0.8 m locally between 1955 and 1995. The observed deep-seated subsidence far exceeds model predictions and demonstrates that shallow processes such as compaction and consolidation of Holocene sediments are inadequate by themselves to explain late 20th century subsidence. Deep-seated subsidence occurring east and north of the normal faults marking the Gulf of Mexico basin margin can be explained by local groundwater withdrawal, and regional tectonic loading of the lithosphere by the modern Mississippi River delta (MRD). Sharp changes in subsidence coincide with strands of the basin margin normal faults. Displacements are consistent with activity and show motions consonant with fault creep. Deep subsidence of the region to the south, including New Orleans, can be explained by a combination of groundwater withdrawal from shallow upper Pleistocene aquifers, the aforementioned lithospheric loading, and perhaps, nongroundwater-related faulting. Subsidence due to groundwater extraction from aquifers ˜160 to 200 m deep dominated urbanized areas and is likely responsible for helping to lower local flood protection structures and bridges by as much as ˜0.8 m.

  3. Changes in the relationships between climate and silver fir (Abies alba Mill.) growth during the 20th century in the Tuscan Apennine Alps (Middle Italy)

    D'Aprile, F.; Tapper, N.; Baker, P.; Bartolozzi, L.; Bottacci, A.

    2012-04-01

    In the Tuscan Apennine Alps, recent research has shown that similarity in trends of monthly climate variables (i.e., temperature and rainfall) is non-stationary amongst sites during the 20th century even between sites that differ little in elevation and at a relatively short distance from each other (D'Aprile et al., 2010; D'Aprile et al., 2011). Moreover, the level of correlation between series of monthly climate variables varies irregularly from highly positive to negative over time. We hypothesised that those changing climate conditions, even at the local level, could cause different tree-ring growth responses in silver fir amongst sites. The hypothesis was tested by dendroclimatological analysis, which was applied to study stands in silver fir forests close to the meteorological stations where climate analysis has been made. Results show that the influences of both monthly mean temperature and monthly rainfall on silver fir growth vary greatly during the 20th century in the Tuscan Apennine Alps, and the ways that they change differ with month and amongst sites. Within sites, differences in the relationships between climate variables and silver fir tree-ring growth appear small in spite of different elevation of the study stands. These results contribute a changing point in forest planning and management especially in consideration of the need to adapt forest management and interventions to changing climate conditions and mitigate the impacts on silver fir forests. Moreover, they introduce climate variability as a key parameter in sustainable forest management for biodiversity conservation, socially responsible uses, nature conservation, and survival of the only conifer tree species typical of mountain mixed forest ecosystems in the Apennine Alps.

  4. Coastal fisheries in the Eastern Baltic Sea (Gulf of Finland and its basin from the 15 to the Early 20th centuries.

    Julia Lajus

    Full Text Available The paper describes and analyzes original data, extracted from historical documents and scientific surveys, related to Russian fisheries in the southeastern part of the Gulf of Finland and its inflowing rivers during the 15- early 20(th centuries. The data allow tracing key trends in fisheries development and in the abundance of major commercial species. In particular, results showed that, over time, the main fishing areas moved from the middle part of rivers downstream towards and onto the coastal sea. Changes in fishing patterns were closely interrelated with changes in the abundance of exploited fish. Anadromous species, such as Atlantic sturgeon, Atlantic salmon, brown trout, whitefish, vimba bream, smelt, lamprey, and catadromous eel were the most important commercial fish in the area because they were abundant, had high commercial value and were easily available for fishing in rivers. Due to intensive exploitation and other human-induced factors, populations of most of these species had declined notably by the early 20(th century and have now lost commercial significance. The last sturgeon was caught in 1996, and today only smelt and lamprey support small commercial fisheries. According to historical sources, catches of freshwater species such as roach, ide, pike, perch, ruffe and burbot regularly occurred, in some areas exceeding half of the total catch, but they were not as important as migrating fish and no clear trends in abundance are apparent. Of documented marine catch, Baltic herring appeared in the 16(th century, but did not become commercially significant until the 19(th century. From then until now herring have been the dominant catch.

  5. Intercomparison of 20th century tropical climate model hindcasts and coral δ18O data using a forward proxy system model

    Thompson, D. M.; Ault, T. R.; Evans, M. N.; Cole, J. E.; Emile-Geay, J.

    2010-12-01

    When coupled to climate model (CGCM) output, forward models provide a means to assess CGCM output through direct comparison with the available proxy observations. Here we model reef coral oxygen isotopic composition (δ18O) as a function of sea-surface temperature (SST) and sea-surface salinity (SSS), with SSS acting as a linear proxy for the isotopic composition of seawater. When driven with historical SST and SSS data over the 1958-1990 period, the forward model is able to capture the spatial pattern and temporal evolution of the El Niño-Southern Oscillation (ENSO) and trend observed in a sparse observational network of 23 Indo-Pacific coral δ18O records. The SST and SSS components of the model are both necessary to capture the full magnitude of the coral trend. The δ18O trend simulated from historical SST and SSS data is equivalent to or smaller than the observed δ18O trend. For the 1890-1990 period, δ18O records simulated from AR4 CGCMs generally display greater overall interannual variance and a weaker 20th century warming/freshening trend than is observed in corals. The discrepancies between observed and CGCM-simulated δ18O trends may arise in part from unmodeled physiological controls on δ18O or from sampling-network induced biases. On the other hand, the tropical Pacific may be more sensitive to radiative changes during the 20th century than is simulated by the AR4 generation of CGCMs.

  6. Simulations of 20th and 21st century Arctic cloud amount in the global climate models assessed in the IPCC AR4

    Vavrus, Steve; Waliser, Duane; Schweiger, Axel; Francis, Jennifer

    2009-12-01

    Simulations of late 20th and 21st century Arctic cloud amount from 20 global climate models (GCMs) in the Coupled Model Intercomparison Project phase 3 (CMIP3) dataset are synthesized and assessed. Under recent climatic conditions, GCMs realistically simulate the spatial distribution of Arctic clouds, the magnitude of cloudiness during the warmest seasons (summer-autumn), and the prevalence of low clouds as the predominant type. The greatest intermodel spread and most pronounced model error of excessive cloudiness coincides with the coldest seasons (winter-spring) and locations (perennial ice pack, Greenland, and the Canadian Archipelago). Under greenhouse forcing (SRES A1B emissions scenario) the Arctic is expected to become cloudier, especially during autumn and over sea ice, in tandem with cloud decreases in middle latitudes. Projected cloud changes for the late 21st century depend strongly on the simulated modern (late 20th century) annual cycle of Arctic cloud amount: GCMs that correctly simulate more clouds during summer than winter at present also tend to simulate more clouds in the future. The simulated Arctic cloud changes display a tripole structure aloft, with largest increases concentrated at low levels (below 700 hPa) and high levels (above 400 hPa) but little change in the middle troposphere. The changes in cloud radiative forcing suggest that the cloud changes are a positive feedback annually but negative during summer. Of potential explanations for the simulated Arctic cloud response, local evaporation is the leading candidate based on its high correlation with the cloud changes. The polar cloud changes are also significantly correlated with model resolution: GCMs with higher spatial resolution tend to produce larger future cloud increases.

  7. Modelling the 20th and 21st century evolution of Hoffellsjökull glacier, SE-Vatnajökull, Iceland

    Aðalgeirsdóttir, G.; Guðmundsson, S.; Björnsson, H.; Pálsson, F.; Jóhannesson, T.; Hannesdóttir, H.; Sigurðsson, S. Þ.; Berthier, E.

    2011-11-01

    The Little Ice Age maximum extent of glaciers in Iceland was reached about 1890 AD and most glaciers in the country have retreated during the 20th century. A model for the surface mass balance and the flow of glaciers is used to reconstruct the 20th century retreat history of Hoffellsjökull, a south-flowing outlet glacier of the ice cap Vatnajökull, which is located close to the southeastern coast of Iceland. The bedrock topography was surveyed with radio-echo soundings in 2001. A wealth of data are available to force and constrain the model, e.g. surface elevation maps from ~1890, 1936, 1946, 1989, 2001, 2008 and 2010, mass balance observations conducted in 1936-1938 and after 2001, energy balance measurements after 2001, and glacier surface velocity derived by kinematic and differential GPS surveys and correlation of SPOT5 images. The approximately 20% volume loss of this glacier in the period 1895-2010 is realistically simulated with the model. After calibration of the model with past observations, it is used to simulate the future response of the glacier during the 21st century. The mass balance model was forced with an ensemble of temperature and precipitation scenarios derived from 10 global and 3 regional climate model simulations using the A1B emission scenario. If the average climate of 2000-2009 is maintained into the future, the volume of the glacier is projected to be reduced by 30% with respect to the present at the end of this century. If the climate warms, as suggested by most of the climate change scenarios, the model projects this glacier to almost disappear by the end of the 21st century. Runoff from the glacier is predicted to increase for the next 30-40 yr and decrease after that as a consequence of the diminishing ice-covered area.

  8. Simulations of 20th and 21st century Arctic cloud amount in the global climate models assessed in the IPCC AR4

    Vavrus, Steve [University of Wisconsin-Madison, Center for Climatic Research, Madison, WI (United States); Waliser, Duane [Jet Propulsion Laboratory, MS 183-501, Water and Carbon Cycles Group, Pasadena, CA (United States); Schweiger, Axel [University of Washington, Polar Science Center, Seattle, WA (United States); Francis, Jennifer [Rutgers University, J. J. Howard Marine Laboratory, Highlands, NJ (United States)

    2009-12-15

    Simulations of late 20th and 21st century Arctic cloud amount from 20 global climate models (GCMs) in the Coupled Model Intercomparison Project phase 3 (CMIP3) dataset are synthesized and assessed. Under recent climatic conditions, GCMs realistically simulate the spatial distribution of Arctic clouds, the magnitude of cloudiness during the warmest seasons (summer-autumn), and the prevalence of low clouds as the predominant type. The greatest intermodel spread and most pronounced model error of excessive cloudiness coincides with the coldest seasons (winter-spring) and locations (perennial ice pack, Greenland, and the Canadian Archipelago). Under greenhouse forcing (SRES A1B emissions scenario) the Arctic is expected to become cloudier, especially during autumn and over sea ice, in tandem with cloud decreases in middle latitudes. Projected cloud changes for the late 21st century depend strongly on the simulated modern (late 20th century) annual cycle of Arctic cloud amount: GCMs that correctly simulate more clouds during summer than winter at present also tend to simulate more clouds in the future. The simulated Arctic cloud changes display a tripole structure aloft, with largest increases concentrated at low levels (below 700 hPa) and high levels (above 400 hPa) but little change in the middle troposphere. The changes in cloud radiative forcing suggest that the cloud changes are a positive feedback annually but negative during summer. Of potential explanations for the simulated Arctic cloud response, local evaporation is the leading candidate based on its high correlation with the cloud changes. The polar cloud changes are also significantly correlated with model resolution: GCMs with higher spatial resolution tend to produce larger future cloud increases. (orig.)

  9. Special issue on Laser Biophotonics, dedicated to the seventieth birthday of V.V. Tuchin

    Priezzhev, A. V.; Bashkatov, A. N.; Genina, E. A.

    2014-07-01

    Prominent Researcher and Educator, Honoured Scientist of the Russian Federation, Professor Valery V. Tuchin celebrated his seventieth birthday this year. V.V. Tuchin heads the Department of Optics and Biophotonics at N.G. Chernyshevsky Saratov State University and the Laboratory of Laser Diagnostics of Technical and Living Systems at the Institute of Precise Mechanics and Control of the Russian Academy of Sciences. He is a Vice-President of the Russian Photobiology Society. V.V. Tuchin is widely known for his achievements in optics of biological tissues, in developing methods of optical and laser measurements in biomedicine and nanobiophotonics, and in many other fields.

  10. Tributes to Yuan-Cheng Fung on his 90th birthday biomechanics : from molecules to man

    Chien, Shu; Schmid-Schönbein, Geert W

    2009-01-01

    This book is a tribute to Professor Yuan-Cheng Fung, the Father of Biomechanics and a pioneer in Bioengineering, in honor of his 90th Birthday. The book consists of articles contributed by his colleagues, students, friends and family. These articles illustrate Professor Fung's profound influence on outstanding leaders in bioengineering, especially biomechanics, and on the life and work of all people who have been in contact with him. The scientific topics covered range from fundamentals of science and engineering (e.g., residual stress, flow dynamics, and cellular signaling) to clinical disor

  11. Atomic processes and application in honour of David R. Bates' 60th birthday

    Burke, P G

    2013-01-01

    Atomic Processes and Applications is a collection of review articles that discusses major atomic and molecular processes and their applications to upper atmospheric physics and to astrophysics. The book also serves as a 60th birthday tribute to Dr. David R. Bates. The coverage of the text includes the overview of stratospheric aeronomy; upper atmosphere of the earth; and problems in atmospheric pollution. The book also deals with technical and highly specialized issues including photoionization of atomic systems; atomic structure and oscillator strengths; and atomic scattering computations. Th

  12. CERN celebrates André Martin’s 80th birthday

    2009-01-01

    André Martin, pictured at the ceremony held in honour of his 80th birthday. On 27 August 2009 CERN’s Main Auditorium was the venue for a celebration in honour of André Martin’s 80th birthday. Regarded as one of the most important theoretical physicists of his generation, André Martin is one of CERN’s most distinguished figures. The celebration began with a conference, followed by a concert and a reception. After the conference, André Martin made an emotional speech looking back over his fifty-year career and paying tribute to all those who had made important contributions during his time at CERN. "I was extremely happy, and I am very touched by this marvellous celebration you have organised for me. It was a wonderful idea, and I very much enjoyed the concert of Blandine Eynaud and John Devore. My wife, Schu, and I love the music of Gabriel Fauré", he said at the end. André Martin j...

  13. Variability of extreme rainfall over La Plata Basin and Amazon Basin in South America in model simulations of the 20th century and projections under global warming

    Cavalcanti, I. F.

    2011-12-01

    The two largest river basins in South America are Amazon Basin (AMB) in the tropical region and La Plata Basin (LPB) in subtropical and extratropical regions. Extreme droughts have occurred during this decade in Amazonia region which have affected the transportation, fishing activities with impacts in the local population, and also affecting the forest. Droughts or floods over LPB have impacts on agriculture, hydroelectricity power and social life. Therefore, monthly wet and dry extremes in these two regions have a profound effect on the economy and society. Observed rainfall over Amazon Basin (AMB) and La Plata Basin (LPB) is analyzed in monthly timescale using the Standardized Precipitation Index (SPI), from 1979 to 1999. This period is taken to compare GPCP data with HADCM3 simulations (Hadley Centre) of the 20th century and to analyze reanalyses data which have the contribution of satellite information after 1979. HADCM3 projections using SRES A2 scenario is analyzed in two periods: 2000 to 2020 and 2079 to 2099 to study the extremes frequency in a near future and in a longer timescale. Extreme, severe and moderate cases are identified in the northern and southern sectors of LPB and in the western and eastern sectors of AMB. The main objective is to analyze changes in the frequency of cases, considering the global warming and the associated mechanisms. In the observations for the 20th century, the number of extreme rainy cases is higher than the number of dry cases in both sectors of LPB and AMB. The model simulates this variability in the two sectors of LPB and in the west sector of AMB. In the near future 2000 to 2020 the frequency of wet and dry extremes does not change much in LPB and in the western sector of AMB, but the wet cases increase in the eastern AMB. However, in the period of 2079 to 2099 the projections indicate increase of wet cases in LPB and increase of dry cases in AMB. The influence of large scale features related to Sea Surface Temperature

  14. 20世纪中国文学中的鲧禹原型阐释%20th Century Chinese Literature Gun Yu Archetypical

    孙胜杰

    2014-01-01

    鲧禹神话作为原型在文学中被塑造成英雄神话,它凝结了人类对英雄的崇拜,积淀在原始先民的意识底层。20世纪中国文学中的鲧禹原型并不是对鲧禹神话的简单重复,也不仅局限在单一的、永远不变的英雄模式,而是随着历史发展和不同时代文化背景被不断丰富、变化,不断置换变形,从英雄走向普通凡人。20世纪中国文学中的鲧禹原型成为各种力量借以表达自身的文化符码,既体现出了作品的深厚的文化底蕴和历史内涵,又能让我们在相同的原始思维的模式下体验不同的文化,也能更直接、更深刻地认识原型这一既抽象又具体,既多变又稳定的人类文化与文学基因。%Gun Yu myth as a prototype in the literature as a hero mythology, it is perhaps the epitome of human to the hero worship, accumulate at the bottom of the pioneers of the original consciousness. In 20th century Chinese literature Gun Yu prototype is not simply repeat the Gun Yu myth, not just confined to a single, forever hero model, but with the development of history and the cultural background of the different age is rich, the constantly changing, constantly displacement deformation, from hero to ordinary mortals. In 20th century Chinese literature Gun Yu prototype become forces so as to express its own cultural codes, not only reflects the profound connotation of culture and history of the works, but also let us in the same original thinking mode of the experience of different cultures, and more direct, more profound understanding prototype this is both abstract and concrete, is both varied and genetic stability of human culture and literature.

  15. Assessing how seasonal hydrological balance has changed during the warming 20th century in the montane forests of Southeast Asian monsoon region using a stable isotope dendroclimatology approach

    Zhu, M.; Stott, L. D.

    2010-12-01

    Tropical montane forests act as water catchment and host of biodiversity in the Southeast Asian monsoon region, and understanding how their hydrological conditions change with global warming is vitally important. Global climate model simulations project enhanced moisture cycle in the tropics, which would cause stronger summer monsoon precipitations, but on the other hand the adiabatic lapse rate would be shifted towards a moister condition (amplification of warming at high elevation), inhibiting dry season orographic lifting cloud/fog formation (lifting cloud base hypothesis), enhancing evapo-transpiration, and leading to a net moisture loss during winter dry season. In this study, we have attempted to investigate how the seasonal moisture balance in Southeast Asia has evolved in response to these influences through the 20th century using the oxygen isotopic composition (δ18O) of subannual tree cellulose samples extracted from the annual rings of pine trees that grow in Doi Chiang Dao, a limestone mountain in northern Thailand. At this location the δ18O of cellulose exhibits distinctive annual cycles of up to 12‰, which is primarily a reflection of both the so-called ‘isotope amount effect’ that is associated with the strong monsoon precipitation during summer wet season and the moisture availability from different sources during winter dry season. We have demonstrated that tree cellulose δ18O could be used as a proxy for regional monsoon strength by showing that the annual mean cellulose δ18O correlate significantly with All India Rainfall, Webster-Yang monsoon index, as well as with both local and regional monsoon precipitation. ENSO is the dominant influence on interannual rainfall variability and this is well expressed in the interannual cellulose δ18O record. Using a 21-year moving window correlation analysis we find a weakening of ENSO influence after 1980, coinciding with the most rapid atmospheric warming. We expect to analyze older trees to

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

    Mendis, Asoka

    2010-08-01

    As the Journal of Plasma Physics so fittingly dedicates this current volume to honor Professor Padma Kant Shukla, for his extraordinary and prolific contributions to the field, over a period spanning four decades, on the occasion of his 60th birthday, it gives me great pleasure to contribute this personal tribute. Padma is without doubt one of the preeminent plasma theorists of his generation with a productivity that is phenomenal and perhaps unmatched (well in excess of 1000). What is truly impressive is not only his extraordinary productivity but also the depth and breadth of his contributions, which while being centered in plasma physics, bridge many other disciplines including condensed matter physics, particle physics, and geophysics. Although I was familiar with Padma's work, in several areas, earlier, I first met him about 20 years ago, when he began working in a field of great interest to me, namely dusty plasmas. Very quickly Padma became a leader in this very new and rapidly developing field, in particular, pioneering the fascinating area of waves in dusty plasmas; predicting the existence, among others, of the very low frequency dust acoustic mode, which was spectacularly observed subsequently in the laboratory, and has been cited about 1000 times since. During this time I got to know Padma very well while participating in numerous international meetings convened by him and also while hosting him, several times, as a visiting professor at my home institution, and observing his multifaceted talents as an outstanding scholar, inspiring mentor, tireless organizer, and committed humanitarian. While Padma's accomplishments are extraordinary, what makes them even more noteworthy is his personal history. Padma came from a family of modest means in a small Indian village. He was the first member of his extended family who went to college, mainly due to the efforts of the village schoolteacher who obviously recognized the young student's innate talent. Living up

  17. In Search of Our Past: Units in Women's History. World History Student Manual.

    Hurwitz, Suzanne, Ed.; And Others

    This junior high school level student manual contains three units on the role of women in world history. The units, designed to supplement what is customarily taught in world history courses at this level, are entitled Women Under Feudalism: Western Europe and China, Women in the Industrial Revolution, and Women in Change: 20th Century Women in…

  18. The Flexner Report of 1910 and Its Impact on Complementary and Alternative Medicine and Psychiatry in North America in the 20th Century

    Stahnisch, Frank W.; Verhoef, Marja

    2012-01-01

    America experienced a genuinely vast development of biomedical science in the early decades of the twentieth century, which in turn impacted the community of academic psychiatry and changed the way in which clinical and basic research approaches in psychiatry were conceptualized. This development was largely based on the restructuring of research universities in both of the USA and Canada following the influential report of Johns Hopkins-trained science administrator and politician Abraham Flexner (1866–1959). Flexner's report written in commission for the Carnegie Foundation for the Advancement of Teaching in Washington, DC, also had a major influence on complementary and alternative medicine (CAM) in psychiatry throughout the 20th century. This paper explores the lasting impact of Flexner's research published on modern medicine and particularly on what he interpreted as the various forms of health care and psychiatric treatment that appeared to compete with the paradigm of biomedicine. We will particularly draw attention to the serious effects of the closing of so many CAM-oriented hospitals, colleges, and medical teaching programs following to the publication of the Flexner Report in 1910. PMID:23346209

  19. [Insanity, life crises and longing for a "real life". On the discussion of deviant behavior and mental disorders in psychiatry of the 19th and 20th century].

    Kanis-Seyfried, Uta

    On insanity, life crises and the longing for a "right life". A contribution to the discussion on the deviant behavior and mental disorders in the psychiatry of the 19th and 20th centuries using the example of patient stories. History of psychiatry, understood as social and cultural history, provides the framework for this micro-historical article. Using the example of three patients treated in Wuerttemberg or Baden psychiatric asylums between 1875 and 1912, the article focuses on the critical analysis of types of asylums, their practices of admissions, therapies and power relations between patients and staff. Ways of thinking and acting, subjective experiences and emotions are exemplified by patient records, personal testimonials and contemporary publications again by patients and staff. The article examines options of patients to influence the institutional daily asylum routine against the background of its complexity and dynamics. Borders, manipulations, malingering and querulous paranoia are at stake here. Furthermore, the article reflects various forms of social interaction with the power regulating therapeutic and disciplinary aspects against the backdrop of the "canons of rules" of the asylum as well as the contemporary political and legal framework. PMID:27501548

  20. Global riverine N and P transport to ocean increased during the 20th century despite increased retention along the aquatic continuum

    Beusen, Arthur H. W.; Bouwman, Alexander F.; Van Beek, Ludovicus P. H.; Mogollón, José M.; Middelburg, Jack J.

    2016-04-01

    Various human activities - including agriculture, water consumption, river damming, and aquaculture - have intensified over the last century. This has had a major impact on nitrogen (N) and phosphorus (P) cycling in global continental waters. In this study, we use a coupled nutrient-input-hydrology-in-stream nutrient retention model to quantitatively track the changes in the global freshwater N and P cycles over the 20th century. Our results suggest that, during this period, the global nutrient delivery to streams increased from 34 to 64 Tg N yr-1 and from 5 to 9 Tg P yr-1. Furthermore, in-stream retention and removal grew from 14 to 27 Tg N yr-1 and 3 to 5 Tg P yr-1. One of the major causes of increased retention is the growing number of reservoirs, which now account for 24 and 22 % of global N and P retention/removal in freshwater systems, respectively. This increase in nutrient retention could not balance the increase in nutrient delivery to rivers with the consequence that river nutrient transport to the ocean increased from 19 to 37 Tg N yr-1 and from 2 to 4 Tg P yr-1. Human activities have also led to a global increase in the molar N : P ratio in freshwater bodies.

  1. The speech choir in central European theatres and literary-musical works in the first third of the 20th century

    Meyer-Kalkus Reinhart

    2015-01-01

    Full Text Available Speech choirs emerged as an offshoot of the choral gatherings of a wider youth musical and singing movement in the first half of the 20th century. The occasionally expressed opinion that choral speaking was cultivated primarily by the Hitler Youth and pressed into service on behalf of Nazi nationalist and racist propaganda is, historically, only partially accurate. The primary forces of choral speaking in Germany were, from 1919, the Social Democratic workers’ and cultural movement and the Catholic youth groups, in addition to elementary and secondary schools. The popularity of speech choirs around 1930 was also echoed in the music of the time. Compositions for musical speech choirs were produced by composers like Heinz Thiessen, Arnold Schönberg, Ernst Toch, Carl Orff, Vladimir Vogel, Luigi Nono, Helmut Lachenmann and Wolfgang Rihm. Moving forward from the Schönberg School, the post-1945 new music thereby opens up the spectrum of vocal expressions of sound beyond that of the singing voice. It does so not only for solo voices but for the choir as well.

  2. From village to city through maps: historical cartographic materials as an information source on 20th century environmental changes due to urbanisation in Poland

    Nieścioruk Kamil

    2016-03-01

    Full Text Available The article presents the use of historical Polish post-war topographic maps and their usefulness in the detection and assessment of environmental changes caused by 20th century urbanisation. The case study area is the Polish city of Lublin. Two main research questions are defined and answered. The first is what kinds of maps can be used to trace environmental changes as well as to find the present-day remains of past environments and what is the reliability of these maps? Several series of topographic maps are used here together with aerial photography. The second research question is what changes can be found by comparing spatial sources and what features can be found today with the help of early maps. The main features investigated in this section are linear (road networks and areal (orchards supplemented with point features of various kinds (trees, wells, shrines. The quality of cartographic information is assessed and remnants of the past environment are discovered.

  3. FROM “PEASANT” TO “FARMER” IN GREEK MODERNITY: CONSTRUCTING FARMER IDENTITIES IN 19th - AND 20th - CENTURY GREECE

    NIKOS KABERIS

    2015-11-01

    Full Text Available Constructing the farmer in the 19th -and-20th political discourses in Greece pertains to a passage from the peasant to the farmer/farm worker and farmer/patriot, on to the professional farmer; this passage ought to be studied in terms of a specific model which is characterized by small-size family farm units. The above model was mainly promoted by bourgeois forces which led the modernization process in Greek society, and it was the model which the rival socialist movements consented to after their defeat in the Civil War. In the postwar period the acceleration of agricultural development, particularly following the country’s integration in the European Community, imposed a certain consensus in seeking a unitary model of agriculture, whereby the dominant role was assigned to the small farmer-landowner-entrepreneur. At the dawn of the new century, the European agricultural policy reforms entail new vicissitudes for the small landowner, who is now finding him/herself seeking new roles in order to be integrated into a post-industrial developmental model for the countryside. He/she is constituted, once more, a subject of new ontological ventures, such as, for instance, the much-discussed symbolisms of the “warden of the countryside”, and “protector of the environment” and/or the “national cultural heritage”.

  4. FIRST STEPS IN URBAN PLANNING OF BULGARIAN CITIES WITH PARTICIPATION OF CZECH ARCHITECTS AND ENGINEERS AT THE TURN OF 19TH AND 20TH CENTURIES

    Nikolay Brankov

    2015-12-01

    Full Text Available This article focuses on beginnings of the urban planning and first organized planning activities of Bulgarian cities at the turn of 19th and 20th centuries when many Czech engineers and architects participated in significantly. A common feature of all Bulgarian cities was irregular structure and build-up area. The main task of the Czech engineers was to cope with this situation and to design modern cities. In general, the original structure did not make planning easy and unambiguous. Planning of the cities destroyed in the Russian-Turkish war in 1877-78 was easier. A possibility to apply a new city structure freely existed in Stara Zagora and partially in Nova Zagora. A usual principle was straightening of the streets where the engineers used original street network and the new modern streets were built according to it, e.g. the centre of Kystendil and the old part of Nova Zagora. These principles were used also in some central parts of Sofia and Plovdiv. The city of Sofia itself is a distinctive example. Although the original structure was preserved during the war and in the first steps the principle of straightening of the streets in the centre was applied, the other parts of Sofia were designed with a new structure and the old city disappeared. Plovdiv is in contrary to Sofia and its original structure was preserved as an old city and the new one was joined to it in neighbourhoods.

  5. Energy feedbacks of northern high-latitude ecosystems to the climate system due to reduced snow cover during 20th century warming

    Euskirchen, E.S.; McGuire, A.D.; Chapin, F.S.

    2007-01-01

    The warming associated with changes in snow cover in northern high-latitude terrestrial regions represents an important energy feedback to the climate system. Here, we simulate snow cover-climate feedbacks (i.e. changes in snow cover on atmospheric heating) across the Pan-arctic over two distinct warming periods during the 20th century, 1910-1940 and 1970-2000. We offer evidence that increases in snow cover-climate feedbacks during 1970-2000 were nearly three times larger than during 1910-1940 because the recent snow-cover change occurred in spring, when radiation load is highest, rather than in autumn. Based on linear regression analysis, we also detected a greater sensitivity of snow cover-climate feedbacks to temperature trends during the more recent time period. Pan-arctic vegetation types differed substantially in snow cover-climate feedbacks. Those with a high seasonal contrast in albedo, such as tundra, showed much larger changes in atmospheric heating than did those with a low seasonal contrast in albedo, such as forests, even if the changes in snow-cover duration were similar across the vegetation types. These changes in energy exchange warrant careful consideration in studies of climate change, particularly with respect to associated shifts in vegetation between forests, grasslands, and tundra. ?? 2007 Blackwell Publishing Ltd.

  6. Loss of genetic diversity among ocelots in the United States during the 20th century linked to human induced population reductions.

    Janecka, Jan E; Tewes, Michael E; Laack, Linda; Caso, Arturo; Grassman, Lon I; Honeycutt, Rodney L

    2014-01-01

    Ocelots (Leopardus pardalis) in the United States currently exhibit low levels of genetic diversity. One hypothesis for this observation is that habitat fragmentation, resulting from human induced changes in the landscape during the 20(th) century, created island populations with highly reduced gene flow and increased genetic drift and inbreeding. In an effort to investigate this, we used a portion of the mitochondrial control region and 11 autosomal microsatellite loci to examine historical levels of genetic diversity and infer temporal changes in ocelot populations between 1853 and 2005. Levels of genetic diversity were higher in historical ocelot populations than in extant populations from Texas. The earliest documented loss of mitochondrial haplotype diversity occurred at Laguna Atascosa National Wildlife Refuge. The second extant population inhabiting private lands in Willacy County retained higher levels of genetic diversity through the 1990s, but subsequently lost diversity over the next decade. A similar pattern was observed for autosomal microsatellite loci. This supports the argument that low levels of genetic diversity in Texas are related to human induced population reductions and fragmentation, both of which threaten the remaining ocelots in the United States. At this time, the best means of mitigating the continued erosion of genetic variation are translocation of individuals either from larger populations in Mexico to Texas, or between the Texas populations. PMID:24586737

  7. Loss of genetic diversity among ocelots in the United States during the 20th century linked to human induced population reductions.

    Jan E Janecka

    Full Text Available Ocelots (Leopardus pardalis in the United States currently exhibit low levels of genetic diversity. One hypothesis for this observation is that habitat fragmentation, resulting from human induced changes in the landscape during the 20(th century, created island populations with highly reduced gene flow and increased genetic drift and inbreeding. In an effort to investigate this, we used a portion of the mitochondrial control region and 11 autosomal microsatellite loci to examine historical levels of genetic diversity and infer temporal changes in ocelot populations between 1853 and 2005. Levels of genetic diversity were higher in historical ocelot populations than in extant populations from Texas. The earliest documented loss of mitochondrial haplotype diversity occurred at Laguna Atascosa National Wildlife Refuge. The second extant population inhabiting private lands in Willacy County retained higher levels of genetic diversity through the 1990s, but subsequently lost diversity over the next decade. A similar pattern was observed for autosomal microsatellite loci. This supports the argument that low levels of genetic diversity in Texas are related to human induced population reductions and fragmentation, both of which threaten the remaining ocelots in the United States. At this time, the best means of mitigating the continued erosion of genetic variation are translocation of individuals either from larger populations in Mexico to Texas, or between the Texas populations.

  8. Secular changes in the height of the inhabitants of Anatolia (Turkey) from the 10th millennium B.C. to the 20th century A.D.

    Ozer, Başak Koca; Sağır, Mehmet; Ozer, Ismail

    2011-03-01

    We use human-skeleton samples to estimate the height of adults living in Anatolia during the Neolithic period. We also report the results of surveys taken in the 20th century on the height of the Turkish population. Neolithic and the Chalcolithic (5000-3000 B.C.) male heights are estimated as 170.9 cm and 165.0 cm, respectively. Pronounced increases were observed for both sexes between the Chalcolithic and Iron (1000-580 B.C.) periods and sharp decreases among both males and females in the Hellenistic-Roman period (333 B.C. to 395 A.D.). Moreover, recovery to the Iron Age levels was achieved in the Anatolian Medieval period (395-1453 A.D.) for both sexes (169.4 cm for males and 158.0 cm for females). In 1884 the mean height of men was 162.2 cm and by the beginning of the 1930s it increased to 166.3 cm. In the first nationwide survey in 1937 males mean height was 165.3 cm, and females was 152.3 cm, where today current heights are 174.0 cm and 158.9 cm, respectively. PMID:21316315

  9. The making of a social, representative and intellectual police force - Recruitment and education of police trainees in Sweden during the 20th century

    Björn Furuhagen

    2015-05-01

    Full Text Available This article presents the development of recruitment and education of police trainees in Sweden during the 20th century. The aim is to analyse the efforts to promote a role for the police and a police force that would be more social, representative and intellectual. While this has been the goal during the last ten to fifteen years, this investigation shows that the roots of these efforts go back to the 1930s. The ideas underlying recruitment originally sought the ideal police among soldiers, a foundation that metamorphosed into the desire to attract men from different social and occupational groups, and finally developed into attempts at including more women and immigrants. Gradually, police education has been prolonged with an orientation and introduction, plus increased instruction in theoretical subjects such as the social sciences, psychology and Swedish. The conclusion is that more research is needed in other countries as well, because knowledge about changes in recruitment and education can make a valuable contribution to the general field of police history.

  10. RUSSIAN LITERARY NEOTRADITIONALISM OF THE 20TH CENTURY IN THE CONTEXT OF PHILOSOPHICAL AND AESTHETIC-AXIOLOGICAL PROBLEM OF THE CREATIVE CONSCIOUSNESS

    Oleg Nikolaevich Sklyarov

    2014-11-01

    Full Text Available This paper is a continuation of the series of the research on the phenomenon of neotraditionalism in philosophical-aesthetic thought and artistic literature of the 20th century. The crisis phenomena in the creative consciousness of the post-traditionalist period, a kind of "response" to which became the new traditionalism, which was formed in the non-classical conditions and combining in itself the sensitivity to the most valuable discoveries of European modernism and the aspiration to eternal landmarks of classical culture.Cultural, historical, mental preconditions of the neotraditionalism and its key features are considered in the article. The author gives priority to the ontology, and also axiological and poetological aspects of neotraditional thinking. By virtue of the fact that it appears as a special vector of the creative research, and alternative to the divergent strategies of avant-gardism and reglamentaric intentions of the so-called "Socialist Realism" art. The subject of the research interest are the predominant traits of neotraditional mentality such as life acceptance, logocentric, responsibility, a tendency to seek modern forms of actualization of the eternal universals, and solidarity (convergence of the creative aspirations.

  11. Large-Scale Modeling Shows Little Impact of 20th-Century Changes in Temperature and Fire on the Central Canadian Boreal Forest

    Bond-Lamberty, B.; Peckham, S.; Ahl, D. E.; Gower, S. T.

    2006-12-01

    Boreal forests are predicted to experience relatively large climate change (IPCC 2001), and the fire dynamics of this region may not be in equilibrium with the changing climate (Flannigan et al. 1998, Kasischke & Stocks 2000). Here we investigate how well a biogeochemical model can simulate observed 20^{th}-century changes in the structure and function of the boreal forest. Biome-BGC was used to simulate a 1000 km x 1000 km section (6-8% of the global boreal forest) of central Canadian forest at 1 km2 resolution. Historical climate, disturbance, and CO2 forcing data were used to drive the model; three dynamic vegetation types (evergreen needleleaf tree, broadleaf deciduous tree, and moss) were employed. Soil type, drainage, and other site conditions were represented as accurately as available data allowed. Assuming that the forest was at a carbon-neutral steady state in 1948, CO2 and disturbance frequency changes had small (<20 g C m-2 yr-1) and opposite effects on forest C balance by 2005; in particular, the C losses from more frequent fires were almost balanced by the C uptake of post-disturbance deciduous forests. Precipitation changes had the largest effects on C balance, with the overall forest shifting from being neutral to a small source of C, while interannual variability increased. Such a shift is smaller than can be measured using current biometric and eddy covariance techniques.

  12. Identification of Large Scale Circulation Patterns Associated With Temperature Extremes Over North America in Observations and Climate Model Simulations of the 20th Century

    Loikith, P.; Broccoli, A. J.

    2010-12-01

    To better anticipate how temperature extremes will be affected by climate change, it is important to understand the atmospheric circulation patterns associated with them. Working towards this goal we have extracted those events in the tails (i.e., below the fifth and above the ninety-fifth percentiles) of the daily temperature frequency distribution for locations in North America from a gridded observational data set for both daily maximum and minimum temperature during a 30 year period in the 20th century. Using reanalysis data, we calculated composite atmospheric circulation patterns for these events.. The identified patterns are then compared with known low frequency modes of climate variability that are understood to impact regional temperature behavior. Lastly, the same analysis techniques are applied to output from general circulation models to determine how similar the simulated relationships between temperature extremes and circulation are to the observed ones. The relationships identified using the observed data will aid in our understanding of how temperature extremes over North America will change in the future due to an anthropogenically enhanced greenhouse effect.

  13. Modeling the impact of late 20th century stratospheric ozone changes: Sensitivity to different ozone forcing data sets and zonal asymmetry

    Davis, S. M.

    2013-12-01

    Stratospheric ozone depletion in the Antarctic has profoundly influenced both stratospheric and tropospheric climate, and models lacking stratospheric ozone depletion poorly reproduce past Southern Hemisphere (SH) circulation change. Several studies have shown evidence that prescribing zonal-mean ozone in models leads to underestimation of SH change, and that the zonal asymmetry in ozone depletion has a large impact on the zonal-mean climate response. In this presentation we will show simulations from the NCAR Whole Atmosphere Community Climate Model (WACCM) forced with prescribed ozone fields to revisit the issue of whether it is possible to accurately reproduce late 20th century SH circulation change. In this presentation, we will demonstrate an enhanced SH circulation response in simulations with prescribed zonal-mean ozone from a new historical database that more accurately captures the depth of ozone depletion than databases previously used in the SPARC and CMIP5 assessments. We then compare this response from a 2D prescribed ozone field to a simulation using a prescribed 3D ozone field, and assess how well these simulations compare to observed changes seen in the Microwave Sounding Unit satellite temperature datasets and reanalysis.

  14. Manuscripts and Broadsheets. Narrative Genres and the Communication Circuit among Working-Class Youth in early 20th-Century Finland

    Kirsti Salmi-Niklander

    2006-01-01

    Full Text Available In this article the hazy boundary between folklore and literature, orality and literacy is explored in relation to the individual and the community. How do people who belong to the first generation of active writers in their family and community express their own experiences through fictional narratives and the literary tradition? This question is explored in relation to the working-class youth in the small industrial community of Karkkila (Högforsin southern Finland. The most important research materials are the editions of hand-written newspapers written by these young people from 1914 to 1925.My theoretical background is derived from both folklore studies and book history. Inspired by the research of Robert Darnton, I have outlined the communication circuit of the working-class youth during the early 20th century, discussing the position of the manuscript tradition (hand-written newspapers, ballad books, minutes in relation to the printed texts(books, newspapers, broadsheets and the oral tradition. In my article I focus on the narratives of love in the manuscripts written by the working-class youth. How do they work with the ideas and narrative genres and themes adopted from the printed media and the oral tradition? I outline fictionalization of personal experiences and localization of fictional, printed texts as two basic narrative strategies utilized in these processes.

  15. Demographic situation in Vojvodina in the last decade of the 20th century and at the beginning of the 21st century

    Đurđev Branislav S.

    2004-01-01

    Full Text Available On the basis of the analyzed demographic data for the last decade of the 20th century and the beginning of the 21st century, one could conclude that the most significant characteristics of the population of Vojvodina are: slow demographic increase; negative population growth; more and more unfavourable age structure; increase in the decision to remain single; relatively low level of urbanization, a very heterogeneous national composition of the population; acceptance of low reproductive norms in the majority of the population; and a very probable depopulation in the future. The discussed demographic features characteristic for Vojvodina as a whole are also present in most of the smaller territorial-administrative units like districts and muinicipalities. Their population is also characterized by the negative population growth, low birthrate and fertility, high general mortality-rate as well as by a very advanced process of demographic ageing. The analysis about the demographic situation in Vojvodina was primarily based on the data from the 1991 and 2002 censuses, as well as on the data of the vital statistics for that inter-census period.

  16. Temporal and spatial evolution of the solar energetic particle event on January 20th, 2005 and resulting ion pair production in the atmosphere

    Matthiae, D.; Herbst, K.; Heber, B.; Reitz, G.; Sihver, L.; Meier, M.; Berger, T.

    2009-04-01

    The solar energetic particle event on January 20th, 2005 was one of the largest ground level events ever observed. Neutron Monitor stations in the Antarctic recorded energetic particle increases of several thousand percent and it took more than 36 h to return to background level. Such huge increases in high energetic solar cosmic radiation on ground obviously is accompanied by considerable changes in the radiation environment at aviation altitudes. Measurements of 28 Neutron Monitor stations were used in this work to numerically approximate the primary solar proton spectra during the first 12 h of the event by minimizing the differences between measurements and the results of Monte-Carlo calculated count rate increases. The primary spectrum of solar energetic protons was approximated by a power law in rigidity and a linear angular distribution. The incoming direction of the solar energetic particles was determined and compared to the interplanetary magnetic field direction during the event. The resulting effects on the ion pair production during that time will be presented.

  17. "The merits and demerits of Ibsen's great play": the reception of the Novelty Theatre Company matinée performance A doll's house, Theatre Royal, Brighton England, June 20th 1889

    Jill Farleigh Wolfe

    2015-01-01

    “Merits and Demerits of Ibsen’s great play”: The Reception of a performance of A Doll’s House by the Novelty Theatre Company at The Theatre Royal Brighton England June 20th 1889.   This article discusses the reception of a matinée performance of Henrik Ibsen’s A Doll’s House on June 20th 1889 at The Theatre Royal Brighton England. This would be the only performance mounted outside London of the original Novelty Theatre Company’s three week production in English as translated by Willia...

  18. 《二十世纪中国百项考古大发现》读后思考%Book Review: One Hundred Major Archaeological Discoveries in China in the 20th Century

    何驽

    2002-01-01

    The book is a monograph compiled by the Archaeology Publications based on the results of the Voting of "One Hundred Major Archaeological Discoverises in CHina in the 20th Century," The present paper introduces the book's structure,content and summarizes its authoritativeness in the choice of major discoveries,initiative in compilation form,theorization in summarization ,academic character in content and popularity in statement,Meanwhile,the paper analyzes the features of significant archaeological discoveries in CHina in the 20th century,and puts forward that they are characterized by the leding role of academic researches,close connection with social development and taking the Central Plains as the center.

  19. Scientific Community of Valentin N. Samoilov (On the Occasion of His 65th Birthday Anniversary

    Rabounski D.

    2010-10-01

    Full Text Available In this letter we celebrate the 65th birthday anniversary of Prof. Valentin N. Samoilov, a man of the Soviet scientific ancestry in the nuclear and space research, who is a pupil and follower of the famous Soviet engineer Sergey P. Korolev and the prominent Soviet nuclear physicist Michael G. Mescheryakov

  20. From creep damage mechanics to homogenization methods a liber amicorum to celebrate the birthday of Nobutada Ohno

    Matsuda, Tetsuya; Okumura, Dai

    2015-01-01

    This volume presents a collection of contributions on materials modeling, which were written to celebrate the 65th birthday of Prof. Nobutada Ohno. The book follows Prof. Ohno’s scientific topics, starting with creep damage problems and ending with homogenization methods.

  1. An Envoy of Friendship and Culture——In Celebration of Comrade Lin Lin's Ninety-fourth Birthday

    GuZixin

    2004-01-01

    On September 27 this year,Comrade Lin Lin has reached the advanced age of ninety-four years. Besides being a senior on the diplomatic and cultural front of our country,Com. Lin Lin has long assumed leading position in our Association as well. In order to introduce his life and celebrate his birthday,

  2. Lessons from the Central European History – Wars and Changes of Ethnic and National Relations in Central Europe during the 20th Century

    Prokš, Petr

    2015-01-01

    Roč. 16, č. 60 (2015), s. 91-106. ISSN 1586-4197 Institutional support: RVO:67985963 Keywords : World War I * World War II * Central Europe * Czechoslovakia * National Relations Subject RIV: AB - History

  3. Resonances a volume in honour of professor N. Bloembergen on his 70th birthday

    Levenson, M D; Pershan, P S; Shen, Y R

    1990-01-01

    The authors are former students and research fellows of Prof Nicolaas Bloembergen, winner of the Nobel Prize, who has pioneered three distinct fields of science: NMR, masers and nonlinear optics. Each author has contributed a paper of current interest inspired by some aspect of Prof Bloembergen''s 50-year career. This volume contains a historical record of one of the great scientists of the 20th century, including a complete bibliography of his papers, four of his most significant publications and evidence of his impact on generations of scientists. Contents: Reminiscences of Nico: Nico Bloemb

  4. Optimization in science and engineering in honor of the 60th birthday of Panos M. Pardalos

    Floudas, Christodoulos; Butenko, Sergiy

    2014-01-01

    Optimization in Science and Engineering is dedicated in honor of the 60th birthday of Distinguished Professor Panos M. Pardalos. Pardalos’s past and ongoing work has made a significant impact on several theoretical and applied areas in modern optimization. As tribute to the diversity of Dr. Pardalos’s work in Optimization, this book comprises a collection of contributions from experts in various fields of this rich and diverse area of science. Topics highlight recent developments and include: Deterministic global optimization Variational inequalities and equilibrium problems Approximation and complexity in numerical optimization Non-smooth optimization Statistical models and data mining Applications of optimization in medicine, energy systems, and complex network analysis This volume will be of great interest to graduate students, researchers, and practitioners, in the fields of optimization and engineering.

  5. Fuzzy logic and information fusion to commemorate the 70th birthday of Professor Gaspar Mayor

    Sastre, Joan

    2016-01-01

    This book offers a timely report on key theories and applications of soft-computing. Written in honour of Professor Gaspar Mayor on his 70th birthday, it primarily focuses on areas related to his research, including fuzzy binary operators, aggregation functions, multi-distances, and fuzzy consensus/decision models. It also discusses a number of interesting applications such as the implementation of fuzzy mathematical morphology based on Mayor-Torrens t-norms. Importantly, the different chapters, authored by leading experts, present novel results and offer new perspectives on different aspects of Mayor’s research. The book also includes an overview of evolutionary fuzzy systems, a topic that is not one of Mayor’s main areas of interest, and a final chapter written by the Spanish pioneer in fuzzy logic, Professor E. Trillas. Computer and decision scientists, knowledge engineers and mathematicians alike will find here an authoritative overview of key soft-computing concepts and techniques.

  6. Conference on radiation chemistry on the occasion of 100-th birthday of Nataliya Alekseevna Bach

    The conference on radiation chemistry, devoted to the 100-th birthday of N.A.Bach, one of the founders of this scientific discipline in the Soviet Union, took place on June 5-7, 1995 in Moscow. The topics of the conference covered practically all aspects of radiation chemistry: the primary processes; radiation oxidation; radiolysis of organic and inorganic compounds, synthetic and natural polymers; radiation polymerization; radiation chemistry and solid body physics; heterogeneous systems; dosimetry; radiation technologies; ecology, etc. It is noted that the highest interest is aroused by the following trends: radiation-chemical processes in multicomponent heterogeneous and structurized homogeneous systems, the importance of water in most radiation chemical process and also applied problems

  7. Consuming children and making mothers: birthday parties, gifts and the pursuit of sameness

    Alison J. Clarke

    2007-12-01

    Full Text Available Children's birthday parties, and related consumption, form an integral part of the social process of mothering in contemporary consumer culture. From the choosing of the 'right' present to the arrangement of the 'appropriate' party theme, an enormous pressure is exerted upon mothers to maintain social equilibrium through the circulation of their children and gifts amongst and across households. Ethnographic research in Britain suggests that the economic growth of children's party provision and services is coupled with a popular discourse that laments the loss of 'authentic' kinship-based birthday parties and home-made provisioning. In contrast to this spoken discourse, this article reveals how women in fact avidly embrace market goods and services; as a means of generating a culture of sameness that avoids the risks (to the motherhood as a collective, localised phenomenon of exceptional or overtly accomplished mothering. Commercialised, mass produced goods and birthday services are used as a means of limiting expressive gift relations and hospitality. In this sense, the search for sameness, through the cultural practice of making children's parties, is at once liberating and potentially oppressive in its strive for the normative and its inadvertent exclusion of 'other' care-givers. Furthermore, children and their related material culture are consumed, through the birthday party circuit, as a means of generating specific types of mothering.Festas de aniversário infantil, e o consumo ligado a elas, formam uma parte integral do processo social da criação dos filhos na cultura de consumo contemporânea. Da escolha do presente "certo" à preparação do tema "apropriado" para a festa, uma grande pressão é exercida sobre as mães para manter um equilíbrio através da circulação de suas crianças e seus presentes entre e além das famílias. Uma pesquisa etnográfica na Grã-Bretanha sugere que o crescimento econômico dos preparativos e servi

  8. Special Issue in Honor of the 60th Birthday of Professor Imre J. Rudas

    János Fodor

    2009-12-01

    Full Text Available This special issue of Acta Polytechnica Hungarica is dedicated to Professor ImreJ. Rudas on the occasion of his 60th birthday and in recognition of his outstandingcontributions to computational intelligence, robotics with special emphasis onrobot control, soft computing, computer-aided process planning, fuzzy control andfuzzy sets. The issue can be considered as a complement to the edited volume J.Fodor and J. Kacprzyk (Eds., Aspects of Soft Computing, Intelligent Robotics andControl (Studies in Computational Intelligence, vol. 241 (Springer-Verlag,Berlin, Heidelberg, 2009. The manuscripts were submitted in response to directinvitations from the Editor-in-Chief, containing contributions from some of Imre’spast collaborators. The Editor-in-Chief is grateful to the authors for their excellentwork.

  9. Amazing light. A volume dedicated to Charles Hard Townes on his 80th birthday.

    Chiao, R. Y.

    This Festschrift is a collection of essays contributed by students, colleagues, and admirers to honor Charles Hard Townes on the occasion of his 80th birthday, July 28, 1995. Charles Townes shared the Nobel Prize for Physics in 1964 for "fundamental work in the field of quantum electronics, which has led to the construction of oscillators and amplifiers based on the laser-maser principle". This book reflects Townes's wide interests and influence, ranging from quantum optics to astrophysics, and from electrical engineering to medicine. It begins with an introductory biographical essay and includes contributions from nine Nobel laureates. The broadly multinational character of the contributions reflects Townes's deep belief in the international character of science, as well as the breadth of the impact his work and teaching have had.

  10. Geodiversity and biodiversity interactions in the sand landscapes of the Netherlands on 19th and early 20th century landscape paintings

    Jungerius, Pieter; van den Ancker, Hanneke

    2014-05-01

    Sand landscapes occupy about half of the territory of the Netherlands. Apart from an insignificant amount of Tertiary deposits, these sands are of Pleistocene and Holocene age. They include Saalian push moraines, Weichselian cover sands and Holocene drift sands. To these geological landscapes, cultural variants should be added such as the essen, i.e. a landscape with plaggen soils, and reclaimed lands (e.g. former moors). Not included are the coastal sands, which we dealt with in an earlier EGU contribution (van den Ancker & Jungerius 2012). Nature and man created a wide variety of sceneries that inspired painters in the 19th and early 20th century (Jungerius et al. 2012). Painter communities on the sandy soils flourished in Oosterbeek/Wolfheze, Laren/Blaricum, Nijkerk, Nunspeet/Elspeet, Hattem and Heeze. Many of the landscape paintings are found in the database of Simonis en Buunk that can be freely consulted on line (http//www.simonis&buunk.com). For this presentation we selected specimens that show geodiversity-biodiversity relationships, some of which have changed since. Painters of push moraines were attracted by the rolling terrain, the dry valleys and occasionally the colourful podzol soil profiles. Popular themes in the cover sands were the undulating relief and heathlands with herds of sheep, sandy footpaths and country roads with erosion phenomena. The dynamics of erosion captivated the painters of Holocene drift sand scenery, as did the bare fields of cultivated lands. Their paintings show the rural areas that since the beginning of the 20th century lost their traditional charm in large-scale re-allotment schemes and artificial nature-building project, that changed geodiversity-biodiversity relationships. Changes in the sandy terrains that can be inferred from the paintings are on a landscape scale, the scale of the landform and vegetation type, and are illustrated by changes in colour, pattern, structure and texture. Examples are: · active drift sands

  11. [Effects of physics on development of optometry in the United States from the late 19th to the mid 20th century].

    Kim, Dal-Young

    2014-08-01

    In this paper, it was studied how physics affected development of optometry in the United States, from aspects of formation and academization of optometry. It was also revealed that history of optometry was analogous to history of engineering. Optics in the 19th century was divided into electromagnetic study of light and visual optics. Development of the visual optics promoted professionalization of ophthalmology that had already started in the 18th century. The visual optics also stimulated formation of optometry and optometrists body in the late 19th century of the United States. The American optometrists body were originated from opticians who had studied visual optics. Publication of several English academic textbooks on visual optics induced appearance of educated opticians (and jewelers). They acquired a right to do the eye examination in the early 20th century after C. F. Prentice's trial in 1897, evolving into optometrists. The opticians could be considered as craftsmen, and they were divided into (dispensing) opticians and optometrists. Such history of American optometrists body is analogous to that of engineers body in the viewpoints of craftsmen origin and separation from craftsmen. Engineers were also originated from educated craftsmen, but were separated from craftsmen when engineering was built up. Education system and academization of optometry was strongly influenced by physics, too. When college education of optometry started at American universities, it was not belonged to medical school but to physics department. Physics and optics were of great importance in curriculum, and early faculty members were mostly physicists. Optometry was academized in the 1920s by the college education, standardization of curriculum, and formation of the American Academy of Optometry. This is also analogous to history of engineering, which was academized by natural sciences, especially by mathematics and physics. The reason why optometry was academized not by

  12. American Adult Immigration Citizen Education in the Mid- 20^th Century%20世纪中期美国成人移民公民教育概述

    陈正桂

    2011-01-01

    美国一直很重视对移民的同化,公民教育是移民同化采用的非常重要的手段。为此,20世纪中期美国采取了一系列相应的措施,其实践探索值得研究。美国成人移民公民教育的基本理念是帮助非美国公民身份的成人移民通过入籍考试,加入美国国籍,并培养他们对美国文化和价值观的认同感,使之与整个社会结合成一个团结而统一的整体。为实现这一目标,公立学校、移民归化局和其他一些机构相互配合,共同努力,取得了显著的成效。%They always pay much attention to assimilation of immigrants in the United States, the very important as- similation way is citizenship education. They took a series of measures of citizenship education for adult immigrants in Mid -20th Century in America, which is worth researching for us. The fundamental concept of citizenship education for adult immigrants was to help non- Americans of adult immigrants pass American Citizenship Test and be Americans, and train them to identify American culture and outlook of American value, then make them and the society as a unite and unified whole. To fulfill the objective, the public schools, U.S. Immigration and Naturalization Service and other organizations cooperated and worked hard together. At last, their work was very effective.

  13. Adventurers, Flaneurs, and Agitators: Travel Stories as Means for Marking and Transgressing Boundaries in 19th and Early 20th Century Finland

    Kirsti Salmi-Niklander

    2014-12-01

    Full Text Available The article focuses on border crossings in travel stories, which were published in hand-written newspapers in 19th- and early 20th-century Finland. These papers were a popular tradition in student organizations and popular movements. Border crossings appear in travel stories in three different representations. Firstly, border crossings are repeated motifs in travel stories, both as challenging events and as small gestures and encounters. Travel stories demarcate boundaries, but they also provide a means for transgressing them. Secondly, hand-written newspapers as a literary practice highlight borders between oral and written communication. They were produced as one single manuscript copy, and published by being read out aloud in social events. Thirdly, the authors of hand-written newspapers were placed on the border of different positions in society such as class, gender and age. My analysis is based on the methodological discussion of small stories and personal experience narratives; travel stories can be defined as "local event narratives". I have outlined four basic models for travel stories which emerge from hand-written newspapers: the great mission story, the grand tour story, the flaneur story and the retreat story. The analysis of travel stories is presented through four different case studies with a time range from the 1850s to the 1920s: these materials have been produced in two provincial student fraternities (osakunta, in the temperance society "Star" in Helsinki in the 1890s, and in the Social Democratic Youth Club in the small industrial town of Karkkila in the 1910s and the 1920s. Many parallel features can be observed in travel stories, even though the social background and ideology of the authors are quite different. Time and space are important aspects in travel stories, and they often demarcate boundaries of class and gender.

  14. Biodemographic study of a central Apennine area (Italy) in the 19th and 20th centuries: marriage seasonality and reproductive isolation.

    Danubio, M E; Amicone, E

    2001-07-01

    This study investigates seasonality of marriages and reproductive isolation in six long-isolated communities in the central Apennines (Italy). It had two objectives: (1) the identification of an Apennine biodemographic model in comparison with mountain communities of other regions, and with non-Apennine communities in Abruzzo, and (2) to identify the possible effects of the drainage of Lake Fucino (1854-1876) on that area. Marriages in this region show two very stable seasonal patterns: one is typical of sedentary rural societies, with summer migrations and marriages preferentially celebrated in the winter, and the other has marriages that are strongly concentrated in the summer months, i.e. between 75% and 93.5% of marriages were celebrated between June and October in these communities in the 1800s. These were traditionally pastoral communities with winter transhumance of the flocks and their shepherds towards the lowlands of southern Italy. In both groups, restrictions imposed by the Catholic Church do not seem to have affected the timing of marriages. Indeed, economic factors related to work activities seem to have had more influence. Concerning reproductive isolation, the results show high rates of endogamy: between 85% and 98% in both the 19th and 20th centuries. Rates of consanguineous marriages were between 5% and 20%, and those of isonymous marriages rarely exceeded 9%. The coefficient of inbreeding a shows that there was a delayed, limited period of increased consanguinity in the few decades around the turn of the century. This is different from the national situation, and thus could be a consequence of the Lake Fucino drainage. PMID:11446403

  15. Climate and polar motion during the GRACE observing period: 2002-2015: Implications for decadal scale oscillations during the 20th Century

    Ivins, Erik; Adhikari, Surendra; Larour, Eric

    2016-04-01

    The motion of the Earth's pole in space has been observed with great accuracy for the last 115 years. The angular variations of the pole position away from its mean are a well explained at annual and 434-day periods. Variations at annual periods are caused by changes in the mass and angular momentum forced by all Earth surface changes that have near seasonality. The 434-day period is explained as a resonance between the cumulative driving forces having periods near the Chandler wobble free eigenmode of the Earth and is well understood theoretically. The Earth also has a longer-term drift that is explained primarily as a response to the ice age changes in the moments of inertial of the Earth. However, there has been a long-standing search for the origins of pole variations that have a period near 10 years. Using GRACE space gravimetry we show that ice mass losses from Greenland and Antarctica, and when combined with changes in continental hydrology, explain almost all the main features of interannual time scale polar wander. The discovery has broad interdisciplinary implications, as we show that decadal scale pole variations are directly linked to global changes continental water. The energy sources for these pole position changes are, therefore, likely to be associated with decadal scale ocean and atmospheric oscillations that also drive 20th Century on-land wet-dry oscillations at decadal-scale across the globe. Variability in pole position, therefore, offers a tool for assessing past stability of our climate, and for the future, now faced with an increased intensity in the water cycle and more vulnerable to ice sheet instability.

  16. Lovro Stepišnik and the development of travelling librarianship in Slovenia at the turn of the 19th to the 20th century

    Polona Vozel

    2011-01-01

    Full Text Available Purpose: Travelling library service is a field of librarianship which has not been thoroughly explored yet either in Slovenia or abroad. The most interesting question is who the beginner was and how the idea of a travelling library service has been introduced to Slovenia.Methodology/approach: The analysis of primary and secondary resources served to represent the life and work of Lovro Stepišnik as well as a short introduction to the history of travelling librarianship in Slovenia at the turn of the 19th to the 20th century.Results: The findings show that the hypothesis on Lovro Stepišnik as the first travelling librarian in Slovenia could be confirmed. After establishing the library together with the Reading society in the year 1863, either Stepišnik or his assistant, delivered baskets of books to rural readers. At the same time, some initiatives on private travelling libraries based on American and European practices emerged. The aim of the first travelling libraries was to stimulate reading and literacy among rural population, especially in the areas without reading societies and on the borders with German speaking population,in order to stimulate national consciousness and the use of the Slovenian language.Research limitation: The research was limited to the selected primary resources of selected serial publication in the Slovenian language. Some difficulties due to the variety of terms and archaic expressions were identified.Originality/practical implications: The short study should stimulate the research in the development of travelling libraries in Slovenia.

  17. Over the hills and further away from coast: global geospatial patterns of human and environment over the 20th-21st centuries

    Kummu, Matti; de Moel, Hans; Salvucci, Gianluigi; Viviroli, Daniel; Ward, Philip J.; Varis, Olli

    2016-03-01

    Proximity to the coast and elevation are important geographical considerations for human settlement. Little is known, however, about how spatial variation in these factors exactly relates to human settlements and activities, and how this has developed over time. Such knowledge is important for identifying vulnerable regions that are at risk from phenomena such as food shortages and water stress. Human activities are a key driving force in global change, and thus detailed information on population distribution is an important input to any research framework on global change. In this paper we assess the global geospatial patterns of the distribution of human population and related factors, with regard to the altitude above sea level and proximity to the coast. The investigated factors are physical conditions, urbanisation, agricultural practices, economy, and environmental stress. An important novel element in this study, is that we included the temporal evolution in various factors related to human settlements and agricultural practices over the 20th century, and used projections for some of these factors up to the year 2050. We found population pressure in the proximity of the coast to be somewhat greater than was found in other studies. Yet, the distribution of population, urbanisation and wealth are evolving to become more evenly spread across the globe than they were in the past. Therefore, the commonly believed tendency of accumulation of people and wealth along coasts is not supported by our results. At the same time, food production is becoming increasingly decoupled from the trends in population density. Croplands are spreading from highly populated coastal zones towards inland zones. Our results thus indicate that even though people and wealth continue to accumulate in proximity to the coast, population densities and economic productivity are becoming less diverse in relation to elevation and distance from the coast.

  18. Selected pioneering works on humus in soils and sediments during the 20th century: A retrospective look from the International Humic Substances Society view

    Feller, Christian; Brossard, Michel; Chen, Yona; Landa, Edward R.; Trichet, Jean

    Organic matter in general, and humic substances (HS) in particular, are involved in many processes in soils, sediments, rocks and natural waters. These include rock weathering, plant nutrition, pH buffering, trace metal mobility and toxicity, bioavailability, degradation and transport of hydrophobic organic chemicals, formation of disinfection by-products during water treatment, heterotrophic production in blackwater ecosystems and, more generally, the global carbon cycle. Before the 1970s, natural organic matter of different ecosystem pools ( i.e., soils, sediments, and natural waters) was often studied in isolation, although many similarities exist between them. This is particularly so for HS. In this historical context, a need appeared at the international level for bringing together environmental chemists, soil scientists, hydrologists, and geologists who were interested in HS to provide a forum for the exchange of ideas, to standardize analytical procedures and agree on definitions of HS. The International Humic Substances Society (IHSS) was founded in Denver, Colorado (USA) in 1981 with several objectives among them “to bring together scientists in the coal, soil, and water sciences with interests in humic substances” (home page of the IHSS web site: http://ihss.gatech.edu/ihss2/index.html). This paper presents selected pioneering works on humus in soils and sediments during the 20th century with a special focus on the links between the studies of soil HS and the formation, during early diagenesis, of the precursors of kerogens. Temporal coverage includes key contributions preceding the founding of the IHSS, and a brief history of the organization is presented.

  19. Intercomparison of CMIP5 and CMIP3 simulations of the 20th century maximum and minimum temperatures over India and detection of climatic trends

    Sonali, P.; Kumar, D. Nagesh; Nanjundiah, Ravi S.

    2016-01-01

    Climate change impact assessment has become one of the most important subjects of the research community because of the recent increase in frequency of extreme events and changes in the spatiotemporal patterns of climate. This paper analyses the ability of 46 coupled climate models from Coupled Model Intercomparison Project phases 3 and 5 (CMIP5 and CMIP3). The performance of each climate model was assessed based on its skills in simulating the current seasonal cycles (monthly) of both maximum temperature and minimum temperature (Tmax, Tmin) over India. The performance measures such as coefficient of correlation (Skill_r), root mean square error (Skill_rmse), and the skill in simulating the observed probability density function (Skill_s) are mainly employed for evaluation of the simulated monthly seasonal cycle. A new metric called Skill_All which is an intersection of the above three metrics has been defined for the first time. A notable enhancement of Skill_All for CMIP5 vis-a-vis CMIP3 is observed. Further, three best CMIP5 models each for Tmax and Tmin were selected. The methodology employed in this study for model assessment is implemented for the first time for India, which establishes a robust foundation for the climate impact assessment study. The seasonal trends in Tmax and Tmin were analyzed over all the temperature homogenous regions of India for different time slots during the 20th century. Significant trends in Tmin can be seen during most of the seasons over the entire Indian region during last four decades. This establishes the signature of climate change over most parts of India.

  20. Elements of European Political Culture in the Central Asian National Outskirts of the Russian Empire: Perception Specifics of Foreign Cultural Innovations (late 19th – early 20th

    Yuliya A. Lysenko

    2015-12-01

    Full Text Available The article considers the main results of political modernization in the Central Asian national outskirts of the Russian Empire taken place in the late 19th – early 20th centuries. The concept “Central Asian national outskirts” includes Stepnoy and Turkistan Governorate Generals, the two administrative-territorial entities founded in the 1860s as a result of a complete joining of the Kazakh camping grounds of the Junior, Middle and Elder zhuzhes; after the Kokand and Khivinsk khanates inhabited by nomads ( the Kirghiz, the Kara-Kalpaks as well as the settled population (the Uzbeks were conquered. The analysis of the sources and materials conducted by the authors asserts that the political modernization of the Central Asian national outskirts proposed by the Russian Empire was carried out in line with the fundamental characteristics of West European civilization and the basis of its political culture. Thus the system of local government was established and the democratic electoral system was introduced by means of expanding the voter’s base, with the region’s population participating in social and political life. The principles of bourgeois ideology based on such concepts as “equality”, “freedom”, “self-determination” were also formed. However, the political modernization of the Central Asian national outskirts should not be considered as complete. Up to 1917 the political sphere of the region’s population was characterized by the predominance of traditional mores, values and laws, whereas clan ideology, tribalism and Muslim ethno-consciousness were characteristic of the social sphere. All these factors affected the process of adapting to western political culture. The institutionalization of the new structures did not go along with the de-institutionalization of the traditional ones, and so resulted in the combination and coexistence of the traditional and modern structures.