Science.gov

Sample records for mayores chilenos autovalentes

  1. Tell It to the Mayor

    ERIC Educational Resources Information Center

    Schachter, Ron

    2009-01-01

    Mayoral control of public schools is nothing new. Boston pioneered the practice in 1992, replacing elected school committee members with mayoral appointees. Since then, a dozen urban districts--including Cleveland, Chicago, New York City, and Washington, D.C.--have undergone a similar change in school governance that has shifted some or most of…

  2. City Mayors Turn to Charter Schools

    ERIC Educational Resources Information Center

    Hendrie, Caroline

    2004-01-01

    The District of Columbia Mayor, Anthony A. Williams, is not alone among big-city mayors in extending a growing interest in public education to charter schools. This article discusses big-city mayors that have launched initiatives to form more of the independently run, but publicly financed schools. The notion of creating charter schools that…

  3. Mayoral Governance and Student Achievement: How Mayor-Led Districts Are Improving School and Student Performance

    ERIC Educational Resources Information Center

    Wong, Kenneth K.; Shen, Francis X.

    2013-01-01

    Mayoral control and accountability is one of very few major education reforms that aim at governance coherence in this nation's highly fragmented urban school systems. A primary feature of mayoral governance is that it holds the office of the mayor accountable for school performance. As an institutional redesign, mayoral governance integrates…

  4. Mayoral Control in the Windy City

    ERIC Educational Resources Information Center

    Russo, Alexander

    2014-01-01

    When former U.S. congressman and Obama administration chief of staff Rahm Emanuel marched triumphantly into the Chicago mayor's office in 2011, he promised to revamp Chicago Public Schools (CPS) in ways that had barely been contemplated in 16 years of mayoral control over the city's sprawling public-school system. This article discusses…

  5. The Maturing Mayoral Role in Education

    ERIC Educational Resources Information Center

    Kirst, Michael W.; Edelstein, Fritz

    2006-01-01

    As the chief elected officials of their cities, mayors have a rightful role in promoting the interests of public school students and parents who live there, as well as the interests of taxpayers who help fund the school district. Without a strong education system, mayors will find it more difficult to recruit new businesses, strengthen economic…

  6. Mayoral School Leadership and Integrated Governance

    ERIC Educational Resources Information Center

    Center for the Study of Education Policy, 2009

    2009-01-01

    The past two decades have seen an emerging trend in urban school governance: mayors taking the reins of school district leadership. The impetus for putting the mayor in charge of a city's schools usually stems from at least one of the following being documented or generally perceived about an urban school district: (1) Lack of accountability; (2)…

  7. The Mayor's Role in School Desegregation Implementation

    ERIC Educational Resources Information Center

    Rossell, Christine

    1977-01-01

    Successful, or at least nonviolent, strategy for school desegregation depends upon the city's social and political structure. Mayors should plan school desegregation policy as part of a total approach to urban renewal. (Author/GC)

  8. Mayoral Leadership Matters: Lessons Learned from Mayoral Control of Large Urban School Systems

    ERIC Educational Resources Information Center

    Wong, Kenneth K.; Shen, Francis X.

    2007-01-01

    "Mayoral takeover" has emerged as a major reform option for struggling urban districts since it was launched in Boston in 1992 and Chicago in 1995. This article examines the design, implementation, and the effects of mayoral-led school systems. Our research addresses issues that are critical to systemwide improvement: Are there variation in how…

  9. Templo Mayor, Tenochtitlan - Calendar and Astronomy

    NASA Astrophysics Data System (ADS)

    Galindo Trejo, Jesús

    The Templo Mayor of Tenochtitlan was the principal symbol of political power and religious control of the Mexicas. Its orientation was chosen according to ancestral calendrical traditions that considered the Mesoamerican calendar as a sacred concern. The solar alignments incorporated into this emblematic building symbolized moments that divided the solar year according to basic properties of the Mesoamerican calendar.

  10. Aztec Mexico: Discovery of Templo Mayor.

    ERIC Educational Resources Information Center

    Breslav, Marc

    1982-01-01

    Describes the Aztec archaeological artifacts shown in the American Museum of Natural History exhibit: "Aztec Mexico: Discovery of Templo Mayor." More than 100 objects, ranging from human skulls to jewelry, found in the excavation of the Great Temple of Mexico located under the center of Mexico City, were displayed. (AM)

  11. Impact of Radio Ads on New Mexico Mayoral Races.

    ERIC Educational Resources Information Center

    McCleneghan, J. Sean

    1987-01-01

    Compares local radio advertising with small daily and weekly newspapers in influencing the outcome of 11 New Mexico mayoral races in 1986. Reports that the 11 winning mayoral candidates paid attention to radio political advertising in their media mix. (MM)

  12. The Political Dynamics of Mayoral Engagement in Public Education

    ERIC Educational Resources Information Center

    Wong, Kenneth K.

    2006-01-01

    Like many urban reform strategies, mayoral leadership in education has both proponents and skeptics. On the one hand, proponents argue that mayor-led initiatives have the potential to transform low-performing schools and to hold schools and students accountable to systemwide standards. On the other hand, skeptics see mayoral involvement as…

  13. Welcome by the Mayor of Valtetsi

    NASA Astrophysics Data System (ADS)

    Papanikolau, N.

    Welcome by the Mayor of Valtetsi Mr. Chairman Ladies and Gentlemen The municipality of Valtetsi welcomes you and wishes success in your work. Arcadia is both a historical and modern region. Moreover, as a name it remained in the western culture recalling a harmonious and peaceful dream, a lost and desirable situation where the human being lived in balance with nature, a region where the person did not feel yet uprooted. For thousands of years the poetic voices retained vivid this eternal bucolic call of simplicity and accessible happiness. Gazing the starlit sky we will always see Kallisto, the daughter of Lykaona, king of Arcadia and her son Arcadian as they were both transformed in to the constellations Major and Minor Ursus because of the erotic libido of Jupiter and the jealousy of Hera. And we will always remember Centaurus Cheirona, the great schoolteacher of ancient heroes, who was the first to name the constellations according to mythology. Finally we would like to thank the patriot Mr. T. Tzioumi who returns to his beautiful village in Arcadia just like Antaios did. In the geographic place that inspired the arcadian ideal, such activities recall in the limelight Arcadia as was dreamed by Europe. Mr. Chairman, ladies and gentlemen, success in your scientific work. The Municipality of Valtetsi and I myself will be always next to you so that your stay at Arcadia will always remain vivid in your memory. Thank you. Nikos Papanikolaou Mayor of Valtetsi

  14. Indianapolis Mayor Bart Peterson: The Peyton Manning of Charter Schools

    ERIC Educational Resources Information Center

    Skinner, David

    2007-01-01

    Indianapolis Mayor Bart Peterson has laid down a bold challenge to the city's troubled public school system: improve or see your students migrate to the city's growing roster of impressive charter schools. This is no idle threat. In the 2006-2007 academic year, the mayor oversaw 16 charter schools serving 3,870 students. Peterson is currently the…

  15. Priorities for "The New American City." Mayors 2001.

    ERIC Educational Resources Information Center

    Coles, H. Brent

    This report focuses on the scope and potential of the New American City, a term employed by entrepreneurial mayors who have forged partnerships with businesses, nonprofits, and other governmental entities to improve the quality of life in their cities. U.S. mayors believe that it is possible to strengthen and maintain the growth of the New…

  16. Some problems of Maryland towns as seen by their mayors

    NASA Technical Reports Server (NTRS)

    Peake, H. J.

    1978-01-01

    Conversations were held with the mayors of six Maryland towns to discuss possible models and needs for technology transfer. An unexpected outcome of the discussions was a considerable insight into local problems as perceived by the mayors. Problems, whether administrative, socio-economic, or technological, are different, from town to town, in degree, not in kind. Recognition of this feature of local priorities is vital to any considerations of external assistance.

  17. Mayors and Public Education: The Case for Greater Involvement

    ERIC Educational Resources Information Center

    Usdan, Michael D.

    2006-01-01

    Over the last generation, a new politics of education has evolved throughout the United States. Since the 1983 watershed report "A Nation at Risk" (National Commission on Excellence in Education, 1983), the country's most influential business and political leaders--and, more recently, mayors--have spearheaded efforts to improve student achievement…

  18. Dr. von Braun, Mayor Searcy, and General Medaris

    NASA Technical Reports Server (NTRS)

    1959-01-01

    Dr. Wernher von Braun, Director of the U.S. Army Ballistic Missile Agency's (ABMA) Development Operations Division, talks to Huntsville Mayor R. B. 'Speck' Searcy, center, and Army Ordnance Missile Command (ARMC) Major General John B. Medaris, right, during 'Moon Day' celebrations in downtown Huntsville, Alabama. (Courtesy of Huntsville/Madison County Public Library)

  19. 15. MILE ROCK TUNNEL INSPECTED, AUGUST 26, 1915, WITH MAYOR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. MILE ROCK TUNNEL INSPECTED, AUGUST 26, 1915, WITH MAYOR ROLPH AND MEMBERS OF PUBLIC WORKS BOARD PRESENT. Department of Public Works, Map and Plan Room, photo #2546. - Mile Rock Tunnel, Under Forty-eighth Avenue from Cabrillo Street to San Francisco Bay at Point Lobos, San Francisco, San Francisco County, CA

  20. Will Mayor De Blasio Turn Back the School Reform Clock?

    ERIC Educational Resources Information Center

    Meyer, Peter

    2014-01-01

    While heads were spinning, policy watchers seemed genuinely perplexed by New York City's Mayor de Blasio's education opinions. De Blasio opposed many of Bloomberg's reform efforts despite the achievement gains realized by the nation's largest school district during the last 12 years. Yet on close reading, de Blasio's…

  1. Mayor's Firm Hand over N.Y.C. Schools Sparks New Debate

    ERIC Educational Resources Information Center

    Archer, Jeff

    2004-01-01

    This article reports a new debate on mayoral control over New York City schools. Mayoral control of the N.Y.C. schools was at the center of renewed debate, after Mayor Michael R. Bloomberg replaced two members of the city's education policymaking board to ensure enough votes for a controversial plan he backed to end social promotion. The shakeup…

  2. Chartering New Waters: The Indianapolis Mayoral Transition and the Charter School Community

    ERIC Educational Resources Information Center

    Prusinski, Ellen L.; Ruddy, Anne-Maree; Plucker, Jonathan A.; Cierniak, Katherine A.

    2015-01-01

    As the first mayor in the United States to possess independent charter school authorizing authority, Mayor Bart Peterson oversaw the establishment and expansion of Indianapolis's ambitious charter school initiative. In 2007, Democratic Mayor Peterson's oversight of the initiative came to an end when he was unexpectedly defeated by Republican…

  3. Evolution of a Quaternary peralkaline volcano: Mayor Island, New Zealand

    USGS Publications Warehouse

    Houghton, B.F.; Weaver, S.D.; Wilson, C.J.N.; Lanphere, M.A.

    1992-01-01

    Mayor Island is a Holocene pantelleritic volcano showing a wide range of dispersive power and eruptive intensity despite a very limited range in magma composition of only 2% SiO2. The primary controls on this range appear to have been the magmatic gas content on eruption and a varying involvement of basaltic magma, rather than major-element chemistry of the rhyolites. The ca. 130 ka subaerial history of the volcano contains portions of three geochemical cycles with abrupt changes in trace-element chemistry following episodes of caldera collapse. The uniform major-element chemistry of the magma may relate to a fine balance between rates of eruption and supply and the higher density of the more evolved (Ferich) magmas which could be tapped only after caldera-forming events had removed significant volumes of less evolved but lighter magma. ?? 1992.

  4. A Case Study in Policy Change: Mayoral Control in New York City's Schools

    ERIC Educational Resources Information Center

    McGlynn, Adam

    2010-01-01

    During the 33 years New York City schools were controlled primarily by community school boards, the city's mayors posited that greater mayoral influence was the cure for the ills afflicting the city's schools. This paper applies theories of policy change to the 30-year battle for control of New York's schools while highlighting the role of the…

  5. Building Suburban Dreams: School District Secession and Mayoral Control in Suburban Utah

    ERIC Educational Resources Information Center

    Buendia, Edward; Humbert-Fisk, Paul

    2015-01-01

    Background/Context: Mayoral control of large city school districts has become the newest form of school district reorganization. Researchers have documented how real and perceived crises have propelled mayors in Chicago, Baltimore, and Washington DC, amongst others, to redefine the role of board governance by situating the operations of districts…

  6. Identifying the Causes of Mayoral Control in Urban Public School Systems

    ERIC Educational Resources Information Center

    McGlynn, Adam J.

    2010-01-01

    Absent from the literature on mayoral control of urban public schools are quantitative studies that create a coherent theory of why mayoral control occurs. This article attempts to fill this gap by analyzing 47 urban school districts from 1991 to 2002, using a Cox Proportional Hazards model to assess the effects of political, economic, and…

  7. Analysis of Mayor Adrian Fenty's Plan for the District of Columbia Public Schools

    ERIC Educational Resources Information Center

    Council of the Great City Schools, 2007

    2007-01-01

    This report summarizes Mayor Fenty's proposed legislation to take over the District of Columbia Public Schools, compares it to actions taken or proposed by the school board, and analyzes the potential of the mayor's plan to fix underlying school system problems identified by the Council in two recent reports. The Council has produced this current…

  8. L.A. Mayor Seeks Role in District: Villaraigosa Wants State Law Stripping Board of Powers

    ERIC Educational Resources Information Center

    Maxwell, Lesli A.

    2006-01-01

    After months of deliberations and promises of dramatic change for Los Angeles' embattled schools, Mayor Antonio Villaraigosa the week of April 17, 2006 called for California lawmakers to put his office in charge of running the day-to-day operations of the nation's second largest school district. In his first State of the City address, Mr.…

  9. Redesigning Urban Districts in the USA: Mayoral Accountability and the Diverse Provider Model

    ERIC Educational Resources Information Center

    Wong, Kenneth K.

    2011-01-01

    In response to public pressure, urban districts in the USA have initiated reforms that aim at redrawing the boundaries between the school system and other major local institutions. More specifically, this article focuses on two emerging reform strategies. We will examine an emerging model of governance that enables big-city mayors to establish…

  10. Latino Initiatives: Progress and Challenges. A Report by the Administration of Mayor David N. Dinkins.

    ERIC Educational Resources Information Center

    Medina, Adelita M.

    This annual report for 1990 details initiatives by a select group of New York City (New York) agencies on matters of particular concern to Latinos. New York City's mayor, David Dinkins, originally presented these initiatives in August of 1990 to a meeting of Latino leaders representing diverse agencies and community organization. Highlights of…

  11. Community Support for Mayoral Control of Urban School Districts: A Critical Reexamination

    ERIC Educational Resources Information Center

    Shen, Francis X.

    2012-01-01

    This article challenges the view that citywide referenda alone are an effective means of ensuring accountability for mayoral control. Through new empirical analysis of the referenda results in Boston and Cleveland, the article shows that rather than establish genuine democratic legitimacy, the referenda in fact mask strong class-based, and in…

  12. Changing Course on School Reform: Strategic Organizing around the New York City Mayoral Election

    ERIC Educational Resources Information Center

    Easton, Billy

    2014-01-01

    New York City's new mayor, Bill de Blasio, represents a dramatic shift from his predecessor Michael Bloomberg in the area of education. Bloomberg was a national trendsetter on market reforms focused on privatization, testing, and competition. De Blasio was elected on an agenda of classroom investments, student supports, parent and community…

  13. Big City Mayors and School Governance Reform: The Case of School District Takeover

    ERIC Educational Resources Information Center

    Wong, Kenneth K.; Shen, Francis X.

    2003-01-01

    As the "Peabody Journal of Education" celebrates its 80th anniversary, educational policymakers and practitioners are keenly aware of the many changes in the way public schools have been governed in large urban districts over the last 80 years. Among the most significant changes is the role of the mayor. Although the 1920s saw partisan politics in…

  14. Mayors, Governors, and Presidents: The New Education Executives and the End of Educational Exceptionalism

    ERIC Educational Resources Information Center

    Henig, Jeffrey R.

    2009-01-01

    Various accounts have noted a growing visibility and influence of presidents, governors, and mayors in the shaping of educational policy. Typically, explanations for this are discrete and situational: specific to particular levels of government, particular jurisdictions, particular visionary leaders, and transitory external events. This article…

  15. Assessing the Case for Mayoral Control of Urban Schools. Education Outlook. No. 4

    ERIC Educational Resources Information Center

    Hess, Frederick M.

    2008-01-01

    Education reformers have long questioned whether school boards have become an anachronism. Pointing to promising efforts in Boston and New York City, some have argued for handing over control of school districts to mayors. A review of the research suggests that advocates overstate the evidence and underestimate the pitfalls, but, on balance,…

  16. Getting Hold of District Finances: A Make-or-Break Issue for Mayoral Involvement in Education

    ERIC Educational Resources Information Center

    Hill, Paul T.

    2006-01-01

    In this essay, the author calls attention to a little-studied but critical aspect of school system reform: the nontransparent and sometimes illogical ways school districts allocate funds and personnel, especially teachers. Drawing on a series of studies produced by his Center for Reinventing Public Education, the author asserts that mayors who…

  17. Attitudes and Perceptions of Vocational Education in New York City: Implications for the Mayor's School Reform Initiative

    ERIC Educational Resources Information Center

    Green, Rupert

    2012-01-01

    Under-performing New York City (NYC) schools precipitated Mayor Michael Bloomberg's decision to advance a vocational education initiative. The initiative was to address the problem of the many city high school graduates lacking both the skills for gainful employment and the academic preparedness to pursue higher education. The mayor's initiative…

  18. RELACIÓN MÉDICO PACIENTE: DERECHOS DEL ADULTO MAYOR

    PubMed Central

    Barrantes-Monge, Melba; Rodríguez, Eduardo; Lama, Alexis

    2009-01-01

    Existen prejuicios en relación con la vejez, incluso entre los profesionales que se dedican a la gerontología. Uno común y peligroso es considerar que los viejos son todos enfermos o discapacitados. La relación médico-paciente es la piedra angular de la práctica y ética médicas. Para alcanzar el respeto por los adultos mayores es necesaria una medicina prudente, basada en una práctica en la cual la reflexión ética y clínica pueda contribuir. Esto último es posible si se hacen valer los derechos del adulto mayor, en particular como paciente para la toma de decisiones. PMID:20379380

  19. Sustaining and Strengthening DC Schools: Challenges and Choices for the New Mayor

    ERIC Educational Resources Information Center

    Gallagher, Megan; Bogle, Mary

    2014-01-01

    Mayor-elect Bowser assumed control at a delicate juncture in the turbulent history of DC schools. In the 2008-09 school year, public school enrollment--in both traditional and charter schools--increased for the first time since the 1960s. In 2013-14, the District had the largest student body in over 25 years, and over the past 15 years, public…

  20. "Good Politics Is Good Government": The Troubling History of Mayoral Control of the Public Schools in Twentieth-Century Chicago

    ERIC Educational Resources Information Center

    Carl, Jim

    2009-01-01

    This article looks at urban education through the vantage point of Chicago's mayors. It begins with Carter H. Harrison II (who served from 1897 to 1905 and again from 1911 to 1915) and ends with Richard M. Daley (1989 to the present), with most of the focus on four long-serving mayors: William Hale Thompson (1915-23 and 1927-31), Edward Kelly…

  1. The role of a keystone fault in triggering the complex El Mayor-Cucapah earthquake rupture

    NASA Astrophysics Data System (ADS)

    Fletcher, John M.; Oskin, Michael E.; Teran, Orlando J.

    2016-04-01

    The 2010 Mw 7.2 El Mayor-Cucapah earthquake in Baja California, Mexico activated slip on multiple faults of diverse orientations, which is commonly the case for large earthquakes. The critical stress level for fault failure depends on fault orientation and is lowest for optimally oriented faults positioned approximately 30° to the greatest principal compressive stress. Yet, misoriented faults whose positioning is not conducive to rupture are also common. Here we use stress inversions of surface displacement and seismic data to show that the El Mayor-Cucapah earthquake initiated on a fault that, owing to its orientation, was among those that required the greatest stress for failure. Although other optimally oriented faults must have reached critical stress earlier in the interseismic period, Coulomb stress modelling shows that slip on these faults was initially muted because they were pinned, held in place by misoriented faults that helped regulate their slip. In this way, faults of diverse orientations could be maintained at critical stress without destabilizing the network. We propose that regional stress build-up continues until a misoriented keystone fault reaches its threshold and its failure then spreads spontaneously across the network in a large earthquake. Our keystone fault hypothesis explains seismogenic failure of severely misoriented faults such as the San Andreas fault and the entire class of low-angle normal faults.

  2. Salud mental en desastres naturales: estrategias interventivas con adultos mayores en sectores rurales de Chile.

    PubMed

    Osorio-Parraguez, Paulina; Espinoza, Adriana

    2016-06-01

    En el presente artículo se da a conocer una estrategia de intervención llevada a cabo con adultos mayores en la comuna de Paredones, sexta región de Chile, con posterioridad al terremoto y tsunami del 27 de febrero 2010 en Chile, en el contexto de una investigación sobre fortalezas y vulnerabilidades desplegadas por este grupo etario, con posterioridad a un desastre natural. Se presenta una descripción del desarrollo metodológico de la intervención y de los sustentos teóricos y conceptuales en los que se basa. Como resultado de este proceso, se propone una estrategia que trabaje a través de la identificación de las propias experiencias y fortalezas de los sujetos. De tal forma se minimizan los efectos negativos de los determinantes sociales de la salud (como la edad y el lugar de residencia) en contexto de crisis; permitiendo a los adultos mayores fortalecer sus recursos individuales y colectivos, en pro de su bienestar psicosocial. PMID:25724751

  3. DIABETES MELLITUS COMO FACTOR DE RIESGO DE DEMENCIA EN LA POBLACIÓN ADULTA MAYOR MEXICANA

    PubMed Central

    Silvia, Mejía-Arango; Clemente, y Zúñiga-Gil

    2012-01-01

    Introduccion La diabetes mellitus y las demencias constituyen dos problemas crecientes de salud entre la población adulta mayor del mundo y en particular de los paises en desarrollo. Hacen falta estudios longitudinales sobre el papel de la diabetes como factor de riesgo para demencia. Objetivo Determinar el riesgo de demencia en sujetos Mexicanos con diabetes mellitus tipo 2. Materiales y Metodos Los sujetos diabéticos libres de demencia pertenecientes al Estudio Nacional de Salud y Envejecimiento en México fueron evaluados a los dos años de la línea de base. Se estudió el papel de los factores sociodemográficos, de otras comorbilidades y del tipo de tratamiento en la conversión a demencia. Resultados Durante la línea de base 749 sujetos (13.8%) tuvieron diabetes. El riesgo de desarrollar demencia en estos individuos fue el doble (RR, 2.08 IC 95%, 1.59–2.73). Se encontró un riesgo mayor en individuos de 80 años y más (RR 2.44 IC 95%, 1.46–4.08), en los hombres (RR, 2.25 IC 95%, 1.46–3.49) y en sujetos con nivel educativo menor de 7 años. El estar bajo tratamiento con insulina incrementó el riesgo de demencia (RR, 2.83, IC 95%, 1.58–5.06). Las otras comorbilidades que aumentaron el riesgo de demencia en los pacientes diabéticos fueron la hipertensión (RR, 2.75, IC 95%, 1.86–4.06) y la depresión (RR, 3.78, 95% IC 2.37–6.04). Conclusión Los sujetos con diabetes mellitus tienen un riesgo mayor de desarrollar demencia, La baja escolaridad y otras comorbilidades altamente prevalentes en la población Mexicana contribuyen a la asociación diabetes-demencia. PMID:21948010

  4. Getting food policy on the Mayoral table: a comparison of two election cycles in New York and London.

    PubMed

    Freudenberg, N; Atkinson, S

    2015-04-01

    Cities and Mayors are increasingly being recognized as important in shaping social policy and improving social well-being. And municipal food policies are increasingly important as a tool to reduce food insecurity and prevent diet-related chronic diseases. Thus city governments have a unique ability to improve local food environments. To realize this potential for improving urban food environments, nutrition advocates will need to find innovative approaches for influencing municipal food policy. This paper examines Mayoral elections as a vehicle to advance food policy. To explore this strategy, Mayoral elections in two cities, New York City (NYC) and London, during two recent cycles were compared. To gather evidence multiple sources were used including campaign documents, media and opinion polls as well as the authors' own observations as food policy observers and participants in the two cities. Mayoral governance differs between NYC and London, with the Mayor in NYC having greater powers of management and administration, whilst the London Mayor has a more strategic role and may need to also use 'influence'. Food policy and related issues did not feature strongly in the first election cycles in either city. However by the 2012 and 2013 elections food issues were definitely 'on the table' and featured in main candidates' campaign literature. These latter elections also saw the importance of food advocates coming together to form common alliances and place food issues higher on the municipal agenda. In this way, food policy has become part of the election dialogue in both cities and candidates are expected to consider food policy issues. This analysis leads to make observations which could guide advocates as to how to use Mayoral elections to raise policy objectives for the benefit of public health. PMID:25834929

  5. Near-field deformation from the El Mayor-Cucapah earthquake revealed by differential LIDAR.

    PubMed

    Oskin, Michael E; Arrowsmith, J Ramon; Hinojosa Corona, Alejandro; Elliott, Austin J; Fletcher, John M; Fielding, Eric J; Gold, Peter O; Gonzalez Garcia, J Javier; Hudnut, Ken W; Liu-Zeng, Jing; Teran, Orlando J

    2012-02-10

    Large [moment magnitude (M(w)) ≥ 7] continental earthquakes often generate complex, multifault ruptures linked by enigmatic zones of distributed deformation. Here, we report the collection and results of a high-resolution (≥nine returns per square meter) airborne light detection and ranging (LIDAR) topographic survey of the 2010 M(w) 7.2 El Mayor-Cucapah earthquake that produced a 120-kilometer-long multifault rupture through northernmost Baja California, Mexico. This differential LIDAR survey completely captures an earthquake surface rupture in a sparsely vegetated region with pre-earthquake lower-resolution (5-meter-pixel) LIDAR data. The postevent survey reveals numerous surface ruptures, including previously undocumented blind faults within thick sediments of the Colorado River delta. Differential elevation changes show distributed, kilometer-scale bending strains as large as ~10(3) microstrains in response to slip along discontinuous faults cutting crystalline bedrock of the Sierra Cucapah. PMID:22323817

  6. Did stresses from the Cerro Prieto Geothermal Field influence the El Mayor-Cucapah rupture sequence?

    NASA Astrophysics Data System (ADS)

    Trugman, Daniel T.; Borsa, Adrian A.; Sandwell, David T.

    2014-12-01

    The Mw 7.2 El Mayor-Cucapah (EMC) earthquake ruptured a complex fault system in northern Baja California that was previously considered inactive. The Cerro Prieto Geothermal Field (CPGF), site of the world's second largest geothermal power plant, is located approximately 15 km to the northeast of the EMC hypocenter. We investigate whether anthropogenic fluid extraction at the CPGF caused a significant perturbation to the stress field in the EMC rupture zone. We use Advanced Land Observing Satellite interferometric synthetic aperture radar data to develop a laterally heterogeneous model of fluid extraction at the CPGF and estimate that this extraction generates positive Coulomb stressing rates of order 15 kPa/yr near the EMC hypocenter, a value which exceeds the local tectonic stressing rate. Although we cannot definitively conclude that production at the CPGF triggered the EMC earthquake, its influence on the local stress field is substantial and should not be neglected in local seismic hazard assessments.

  7. Near field 3D displacement of El Mayor-Cupapah Earthquake: A hybrid approach. (Invited)

    NASA Astrophysics Data System (ADS)

    Hinojosa-Corona, A.; Limon, F. J.; Nissen, E.; Glennie, C. L.; Krishnan, A.; Oskin, M. E.; Arrowsmith, R.; Leprince, S.; Saripalli, S.; Arregui, S. M.; Borsa, A. A.; Kreylos, O.; Banesh, D.; Fletcher, J. M.

    2013-12-01

    The surface rupture produced on April 4th of 2010 by the M 7.2 El Mayor-Cucapah Earthquake is an ideal target to be analyzed by remote sensing techniques. It produced over 100 km of scarps, with vertical and horizontal slip on the order of 2 to 3 m in scarcely vegetated, rugged terrain underlain by mostly igneous rocks. A 3D displacement field (DF) was calculated by matching pre- to post-event airborne LiDAR point clouds through the Iterative Closest Point (ICP) algorithm, which first segments the point clouds into discrete windows, and for each, iteratively converges on a rigid body transformation comprising a translation and a rotation that best aligns the pre- to post-event point clouds. After testing different window sizes, we used a square window 100m a side. The El Mayor-Cucapah LiDAR data sets present special challenges for the ICP technique. The point clouds differ considerably in point density, by ~1:700. This, and the lower precision of the pre-earthquake data, limit the accuracy of the DF results. Despite these issues, the vertical and East-West (E-W) components of the DF from ICP very clearly delineate the trace of the surface rupture, showing east-side down dextral-normal motion in agreement with field measurements and the focal mechanism reported for this event. A systematic error in the LiDAR instrument used for the pre-event survey caused severe distortion of the North-South (N-S) component of the LiDAR returns. After reprocessing the source pre-event point cloud in various ways to correct for the systematic error, a more plausible pattern for the N-S component was obtained for the DF. To have another perspective for the horizontal DF, a subpixel correlation analysis of optical satellite images (SPOT 2.5 m panchromatic images) before and after the earthquake, was performed using the COSI-Corr software. We combined the N-S component from this analysis with the E-W and vertical components of the ICP results, and present the analysis of the resulting

  8. A dated pollen record of vegetation change on Mayor Island (Tuhua) throughout the last 3000 years

    NASA Astrophysics Data System (ADS)

    Empson, Leighanne; Flenley, John; Sheppard, Peter

    2002-07-01

    Pollen data are presented from Mayor Island, Bay of Plenty. The island was important in prehistory as a source of obsidian (Seelenfreund, A., Bollong, C., 1989. The sourcing of New Zealand obsidian artefacts using energy dispersive XRF Spectroscopy. In: D. Sutton (Editor), Saying So Doesn't Make It So: Papers in honour of B. Foss Leach. New Zealand Archaeological Association Monograph, Wellington, pp. 168-189.) and holds a strategic location relative to the settlement of the North Island of New Zealand since it lies on possible arrival routes from Polynesia, and also relative to travel up and down the east coast of the North Island. The pollen data show that the island was generally forested between c. 3000 and c. 450 BP, when forest declined and the bracken fern Pteridium esculentum (and charcoal) increased. Before significant forest decline at 450 BP, which is consistent with Maori occupation at the time of the fortified settlements known as pa, there is evidence of other episodes of vegetation disturbance dating back to c. 2200 BP which may represent earlier visits by people.

  9. Neither the State nor the Grass Roots: Language Maintenance and the Discourse of the Academia Mayor de la Lengua Quechua.

    ERIC Educational Resources Information Center

    Marr, Tim

    1999-01-01

    Describes the Academia Mayor de la Lengua Quechua, a Peruvian institution ostensibly dedicated to maintaining Quechua. Data from writings by and about the Academia and from administrator interviews suggest that the institution shows signs of an ambivalent and potentially conflictive attitude toward the Peruvian state and Quechua speakers, and this…

  10. Adding Up the Numbers: The Education Budget under Mayoral Control. Update and Summary of 2005-06 EPP Bulletins

    ERIC Educational Resources Information Center

    Connell, Noreen

    2007-01-01

    For more than a century, a succession of New York City (NYC) mayors have claimed that they were reducing administrative overhead in the school system and driving more resources to instruction. These claims have been dutifully reported by the press with rarely any effort to verify them. For the last 50 years, the salaries of teachers were increased…

  11. Los Angeles Takes over Its School District: An Overview of Mayor Antonio Villaraigosa's Bid to Restructure LAUSD. Policy Note

    ERIC Educational Resources Information Center

    Ramirez, Hernan

    2007-01-01

    Across the nation, takeovers of schools or entire systems by mayors, state legislatures, or control boards have come as a result of increasing pressure to improve low performing schools, particularly those in central cities serving disadvantaged or minority students. Citing a need for improvement in the city's schools, Antonio Villaraigosa…

  12. The Mayor's Plan for Achieving Success in the DCPS: Is the Implementation Likely to Match the Vision?

    ERIC Educational Resources Information Center

    Council of the Great City Schools, 2007

    2007-01-01

    The Mayor Adrian Fenty's achievement plan for the District of Columbia Public Schools (DCPS) is divided into four major parts. The first section outlines the philosophical foundation undergirding the plan. The second section outlines the plan's goals and strategies. In preparing this commentary, the Council of the Great City Schools assessed how…

  13. Methods for Analyzing the El Mayor-Cucapah Earthquake Rupture using LIDAR datasets

    NASA Astrophysics Data System (ADS)

    Banesh, D.; Oskin, M. E.; Wang, X.; Hamann, B.

    2011-12-01

    The high-resolution terrestrial LiDAR scans of northern Mexico obtained after the April 2010, Mw7.2 El Mayor-Cucapah earthquake (post-earthquake data), along with aerial LiDAR scans of the same area from before the earthquake (pre-earthquake data), make possible an accurate examination of the shifts in the region due to the event. We present methods for analyzing the various shifts throughout the area. We make two assumptions: (1) at a local level, excluding the area around the fault line, the features have minimal deformation, and (2) any feature was translated no more than five meters, with an optional change in orientation of no more than 15 degrees. We have developed an effective technique, where we iterate though all the points of the pre-earthquake data, using for each point a disc with a radius of 10 meters centered around each sample point, and define a feature based on all the points in this disc. Since the resolution of the pre-earthquake data is less than that of the post-earthquake data, it makes sense to define the features using pre-earthquake points. In the post-earthquake data set, we attempt to find the same feature by searching a ten-by-ten square meter grid centered at the same point as the feature from the pre-earthquake data set. Once a match has been determined, we draw a translation vector from the original position of the feature in the pre-earthquake data to the translated position of the feature in the post-earthquake data. As we draw one vector for each feature, we create a translation vector field that shows the movement caused by the earthquake.

  14. The Mayor of EarthCube: Cities as an Analogue for Governing Cyberinfrastructure

    NASA Astrophysics Data System (ADS)

    Pearthree, G. M.; Allison, M. L.; Patten, K.

    2012-12-01

    Historical development of national and global infrastructure follows common paths with common imperatives. The nascent development may be led a by champion, innovator, or incubating organization. Once the infrastructure reaches a tipping point and adoption spreads rapidly, the organization and governance evolves in concert. Ultimately, no wide-spread infrastructure (from canals to highways to the electric grid to radio/television, or the Internet) operates with a single overarching governing body. The NSF EarthCube initiative is a prototype implementation of cyberinfrastructure, using the broad geoscience community as the testbed. Governance for EarthCube is emulating the pattern of other infrastructure, which we argue is a system of systems that can be described by organized complexity, emergent systems, and non-linear thermodynamics. As we consider governance cyberinfrastructure in the geosciences, we might look to cities as analogs: cities provide services such as fire, police, water, and trash collection. Cities issue permits and often oversee zoning, but much of what defines cities is outside the direct control of city government. Businesses choose whether to locate there, where to operate, and what to build. Residents make similar decisions. State and federal agencies make decisions or impose criteria that greatly affect cities, without necessarily getting agreement from them. City government must thus operate at multiple levels - providing oversight and management of city services, interaction with residents, businesses, and visitors, and dealing with actions and decisions made by independent entities over which they have little or no control. Cities have a range of organizational and management models, ranging from city managers, councils, and weak to strong mayors, some elected directly, some chosen from councils. The range and complexity of governance issues in building, operating, and sustaining cyberinfrastructure in the geosciences and beyond, rival

  15. Postseismic Deformation Following the 2010 El Mayor-Cucapah Earthquake: Observations, Kinematic Inversions, and Dynamic Models

    NASA Astrophysics Data System (ADS)

    Rollins, Christopher; Barbot, Sylvain; Avouac, Jean-Philippe

    2015-05-01

    Due to its location on a transtensional section of the Pacific-North American plate boundary, the Salton Trough is a region featuring large strike-slip earthquakes within a regime of shallow asthenosphere, high heat flow, and complex faulting, and so postseismic deformation there may feature enhanced viscoelastic relaxation and afterslip that is particularly detectable at the surface. The 2010 El Mayor-Cucapah earthquake was the largest shock in the Salton Trough since 1892 and occurred close to the US-Mexico border, and so the postseismic deformation recorded by the continuous GPS network of southern California provides an opportunity to study the rheology of this region. Three-year postseismic transients extracted from GPS displacement time-series show four key features: (1) 1-2 cm of cumulative uplift in the Imperial Valley and 1 cm of subsidence in the Peninsular Ranges, (2) relatively large cumulative horizontal displacements 150 km from the rupture in the Peninsular Ranges, (3) rapidly decaying horizontal displacement rates in the first few months after the earthquake in the Imperial Valley, and (4) sustained horizontal velocities, following the rapid early motions, that were still visibly ongoing 3 years after the earthquake. Kinematic inversions show that the cumulative 3-year postseismic displacement field can be well fit by afterslip on and below the coseismic rupture, though these solutions require afterslip with a total moment equivalent to at least a earthquake and higher slip magnitudes than those predicted by coseismic stress changes. Forward modeling shows that stress-driven afterslip and viscoelastic relaxation in various configurations within the lithosphere can reproduce the early and later horizontal velocities in the Imperial Valley, while Newtonian viscoelastic relaxation in the asthenosphere can reproduce the uplift in the Imperial Valley and the subsidence and large westward displacements in the Peninsular Ranges. We present two forward

  16. GPS Time Series Analysis of Southern California Associated with the 2010 M7.2 El Mayor/Cucapah Earthquake

    NASA Technical Reports Server (NTRS)

    Granat, Robert; Donnellan, Andrea

    2011-01-01

    The Magnitude 7.2 El-Mayor/Cucapah earthquake the occurred in Mexico on April 4, 2012 was well instrumented with continuous GPS stations in California. Large Offsets were observed at the GPS stations as a result of deformation from the earthquake providing information about the co-seismic fault slip as well as fault slip from large aftershocks. Information can also be obtained from the position time series at each station.

  17. Seismological evidence and dynamic model of reverse rupture propagation during the 2010 M7.2 El Mayor Cucapah earthquake

    NASA Astrophysics Data System (ADS)

    Meng, L.; Ampuero, J. P.; Page, M. T.; Hudnut, K. W.

    2011-12-01

    The 2010 El Mayor-Cucapah earthquake has produced some unique observations that exemplify the complexity of rupture dynamics. An eyewitness located near the fault when the rupture broke reported signatures of reverse surface rupture (rupture towards the South at a location North from the hypocenter). We report here on seismological evidence of this phenomenon and present dynamic rupture simulations that illustrate a possible mechanism. Reverse rupture propagation is not admissible in traditional source inversions, because of restrictive assumptions about the rupture kinematics adopted to reduce the non-uniqueness of the inverse problem. In contrast, source imaging by back-projection of dense array data is free from such assumptions. Recently, we have enhanced the array back-projection technique to achieve higher resolution on rupture evolution. We have also extended this approach to recordings at regional distance, despite the complexity of the regional Pn waveforms. We imaged the source of the El Mayor-Cucapah earthquake by back-projecting Pn waves recorded by the SIEDCAR array in New Mexico. Our analysis reveals a segment with reverse rupture propagation consistent with the eyewitness reports. Our simulations of dynamic earthquake rupture show that reverse rupture propagation can be caused by delayed rupture of a strong fault region with a negative along-strike gradient of strength excess. In this scenario the rupture front tunnels through (or surrounds) the strong area, then starts breaking the opposite, weaker end of the strong patch, inducing a reverse rupture front.

  18. Growth of a Structure Connecting the 2010 M 7.2 El Mayor - Cucapah Rupture with the Elsinore Faul

    NASA Astrophysics Data System (ADS)

    Donnellan, A.; Parker, J. W.

    2015-12-01

    The M 7.2 El Mayor - Cucapah earthquake occurred on 4 April 2010 in the northern part of Baja, Mexico. The rupture extended about 120 km from near the northern tip of the Gulf of California to the US - Mexican border south of the Elsinore fault zone. Most of the aftershocks occurred within days of the main event. On 14 June 2010 a M 5.7 late aftershock occurred 8 km southeast of Ocotillo, CA and is the largest aftershock in the sequence. The right-lateral event occurred in a cluster of aftershocks and was followed by its own aftershock sequence. UAVSAR data were collected for a swath covering the aftershock on 13 April, 2010 just after the El Mayor - Cucapah earthquake and before the earthquake on 21 October 2009. The line was reflown 1 July 2010 after the M 5.7 14 June 2010 aftershock. Data have been continued to be collected semi yearly to yearly since then. Repeat Pass Interferomety (RPI) products spanning the aftershock show the growth of a lineament that with an azimuth of 121.5° or a strike of -58.5°. The interferograms suggest that a stepover develops following the earthquake. The epicenter of the M 5.7 aftershock is proximal to the linear discontinuity in the postseismic interferogram and the mechanism of the event is consistent with slip on this stepover. Inversions for slip on the northeast linear structure that steps west of the mainshock rupture yield a moment magnitude ranging from 5.5 - 5.8, which is consistent with the magnitude of the aftershock. Slip occurs at a depth of 2-10 km on a steeply dipping fault.

  19. Liquefaction and other ground failures in Imperial County, California, from the April 4, 2010, El Mayor-Cucapah earthquake

    USGS Publications Warehouse

    McCrink, Timothy P.; Pridmore, Cynthia L.; Tinsley, John C., III; Sickler, Robert R.; Brandenberg, Scott J.; Stewart, Jonathan P.

    2011-01-01

    The Colorado River Delta region of southern Imperial Valley, California, and Mexicali Valley, Baja California, is a tectonically dynamic area characterized by numerous active faults and frequent large seismic events. Significant earthquakes that have been accompanied by surface fault rupture and/or soil liquefaction occurred in this region in 1892 (M7.1), 1915 (M6.3; M7.1), 1930 (M5.7), 1940 (M6.9), 1950 (M5.4), 1957 (M5.2), 1968 (6.5), 1979 (6.4), 1980 (M6.1), 1981 (M5.8), and 1987 (M6.2; M6.8). Following this trend, the M7.2 El Mayor-Cucapah earthquake of April 4, 2010, ruptured approximately 120 kilometers along several known faults in Baja California. Liquefaction caused by the M7.2 El Mayor-Cucapah earthquake was widespread throughout the southern Imperial Valley but concentrated in the southwest corner of the valley, southwest of the city centers of Calexico and El Centro where ground motions were highest. Although there are few strong motion recordings in the very western part of the area, the recordings that do exist indicate that ground motions were on the order of 0.3 to 0.6g where the majority of liquefaction occurrences were found. More distant liquefaction occurrences, at Fites Road southwest of Brawley and along Rosita Canal northwest of Holtville were triggered where ground motions were about 0.2 g. Damage to roads was associated mainly with liquefaction of sandy river deposits beneath bridge approach fills, and in some cases liquefaction within the fills. Liquefaction damage to canal and drain levees was not always accompanied by vented sand, but the nature of the damage leads the authors to infer that liquefaction was involved in the majority of observed cases. Liquefaction-related damage to several public facilities - Calexico Waste Water Treatment Plant, Fig Lagoon levee system, and Sunbeam Lake Dam in particular - appears to be extensive. The cost to repair these facilities to prevent future liquefaction damage will likely be prohibitive. As

  20. Triggered Fault Slip in Southern California Associated with the 2010 Sierra El Mayor-Cucapah, Baja California, Mexico, Earthquake

    NASA Astrophysics Data System (ADS)

    Rymer, M. J.; Treiman, J. A.; Kendrick, K. J.; Lienkaemper, J. J.; Wei, M.; Weldon, R. J.; Bilham, R. G.; Fielding, E. J.

    2010-12-01

    Surface fracturing (triggered slip) occurred in the central Salton Trough and to the southwest, in the Yuha Desert area—all in association with the 4 April 2010 (M7.2) El Mayor-Cucapah earthquake and its aftershocks. Triggered slip in the central Salton Trough occurred on the ‘frequent movers’: the southern San Andreas, Coyote Creek, Superstition Hills, and Imperial Faults, all of which have slipped in previous moderate to large, local and regional earthquakes in the past five decades. Other faults in the central Salton Trough that also slipped in 2010 include the Wienert Fault (southeastern section of the Superstition Hills Fault), the Kalin Fault (in the Brawley Seismic Zone), and the Brawley Fault Zone; triggered slip had not been reported on these faults in the past. Geologic measures of slip on faults in the central Salton Trough ranged from 1 to 18 mm, and everywhere was located where previous primary (tectonic) or triggered slip has occurred. Triggered slip in the Yuha Desert area occurred along at least two dozen faults, only some of which were known before the 4 April 2010 El Mayor-Cucapah earthquake. From east to northwest, slip occurred in seven general areas; 1) in the Northern Centinela Fault Zone (newly named), 2) along unnamed faults south of Pinto Wash, 3) along the Yuha Fault (newly named), 4) along both east and west branches of the Laguna Salada Fault, 5) along the Yuha Well Fault Zone (newly revised name), 6) along the Ocotillo Fault (newly named), and 7) along the southeastern-most section of the Elsinore Fault. Faults that slipped in the Yuha Desert area include northwest-trending right-lateral faults, northeast-trending left-lateral faults, and north-south faults, some of which had dominantly vertical slip. Triggered slip along the Ocotillo and Elsinore Faults occurred only in association with the 14 June 2010 (M5.7) aftershock, which also initiated slip along other faults near the town of Ocotillo. Triggered slip on faults in the Yuha

  1. Grading the Mayor

    ERIC Educational Resources Information Center

    Gewertz, Catherine

    2005-01-01

    In the shadow of a Manhattan housing project, Public School 33 is coming back to life. A new principal has brought a wave of optimism, test scores are way up, and middle-class families who used to avoid the school are enrolling their children. In Brooklyn, teenagers who might have dropped out of school are getting diplomas through a special…

  2. The songs of Tlaloc: Interference of ten ceramical duct flutes, Offering 89 of the Aztec Templo Mayor

    NASA Astrophysics Data System (ADS)

    Both, M. A. Adje

    2002-11-01

    Among the many preserved sound artefacts deposited in the offerings of the Aztec Templo Mayor are a set of ten tubular duct flutes made from clay, dating Late Postclassic Mesoamerica, 1350-1521 AD. The aerophones are completely painted in blue, and characterized by: (1) a short mouthpiece; (2) a framed aperture; (3) a tube with four fingerholes; and (4) an applicated mask with features of the Aztec rain god Tlaloc, basically three rings and a standardized relief structure of two clouds. While all measurements follow the same pattern, one particular organological distinction was made, as five flutes show an exit hole in the middle ring of the mask and five flutes are stopped. Thus, five instruments sound considerably higher, apart from the minimal pitch deviation of each specimen. Both the tonal capacity of each flute and the acoustics of several flutes played simultaneously were recorded and measured. A series of remarkable interference effects could be produced, which were strongly related to the ritual complex reflected in the offering. Taking in consideration the Aztec concept of music, it could be supposed that they were perceived as a principle of the song, or proper voice of Tlaloc.

  3. A harmonised dataset of greenhouse gas emissions inventories from cities under the EU Covenant of Mayors initiative

    NASA Astrophysics Data System (ADS)

    Iancu, A.; Martelli, S.; Cerutti, A. K.; Janssens-Maenhout, G.; Melica, G.; Rivas-Calvete, S.; Kona, A.; Zancanella, P.; Bertoldi, P.

    2015-06-01

    The realization of national climate change commitments, as agreed through international negotiations, requires local action. However, data is still insufficient to make accurate statements about the scale of urban emissions (UNHABITAT, 2011). The need of comparable emission inventories at city level, including smaller cities, is widely recognized to develop evidence-based policies accounting for the relation between emissions and institutional, socio-economic and demographic characteristics at city level. This paper presents a collection of harmonized greenhouse gases (GHG) emission inventories (the "CoM sample 2013") at municipal level directly computed by the cities and towns that participate in the EU Covenant of Mayors initiative. This is the mainstream European movement of local and regional authorities who voluntarily commit to reduce GHG emissions by 20 % or more by 2020. The "CoM sample 2013" (http://edgar.jrc.ec.europa.eu/com/data/index.php?SECURE=123, doi:10.2904/EDGARcom2013) has been carefully checked to ensure its internal consistency and its congruity with respect to internationally accepted guide values for emission factors. Overall, it provides valuable data for the analysis of the heterogeneity of final energy consumption and greenhouse gas emissions of cities.

  4. Aftershocks of the 2010 Mw 7.2 El Mayor-Cucapah earthquake revealcomplex faulting in the Yuha Desert, California

    USGS Publications Warehouse

    Kroll, K.; Cochran, Elizabeth S.; Richards-Dinger, K.; Sumy, Danielle

    2013-01-01

    We detect and precisely locate over 9500 aftershocks that occurred in the Yuha Desert region during a 2 month period following the 4 April 2010 Mw 7.2 El Mayor-Cucapah (EMC) earthquake. Events are relocated using a series of absolute and relative relocation procedures that include Hypoinverse, Velest, and hypoDD. Location errors are reduced to ~40 m horizontally and ~120 m vertically.Aftershock locations reveal a complex pattern of faulting with en echelon fault segments trending toward the northwest, approximately parallel to the North American-Pacific plate boundary and en echelon, conjugate features trending to the northeast. The relocated seismicity is highly correlated with published surface mapping of faults that experienced triggered surface slip in response to the EMC main shock. Aftershocks occurred between 2 km and 11 km depths, consistent with previous studies of seismogenic thickness in the region. Three-dimensional analysis reveals individual and intersecting fault planes that are limited in their along-strike length. These fault planes remain distinct structures at depth, indicative of conjugate faulting, and do not appear to coalesce onto a throughgoing fault segment. We observe a complex spatiotemporal migration of aftershocks, with seismicity that jumps between individual fault segments that are active for only a few days to weeks. Aftershock rates are roughly consistent with the expected earthquake production rates of Dieterich (1994). The conjugate pattern of faulting and nonuniform aftershock migration patterns suggest that strain in the Yuha Desert is being accommodated in a complex manner.

  5. Feature Detection in SAR Interferograms With Missing Data Displays Fault Slip Near El Mayor-Cucapah and South Napa Earthquakes

    NASA Astrophysics Data System (ADS)

    Parker, J. W.; Donnellan, A.; Glasscoe, M. T.; Stough, T.

    2015-12-01

    Edge detection identifies seismic or aseismic fault motion, as demonstrated in repeat-pass inteferograms obtained by the Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) program. But this identification, demonstrated in 2010, was not robust: for best results, it requires a flattened background image, interpolation into missing data (holes) and outliers, and background noise that is either sufficiently small or roughly white Gaussian. Proper treatment of missing data, bursting noise patches, and tiny noise differences at short distances apart from bursts are essential to creating an acceptably reliable method sensitive to small near-surface fractures. Clearly a robust method is needed for machine scanning of the thousands of UAVSAR repeat-pass interferograms for evidence of fault slip, landslides, and other local features: hand-crafted intervention will not do. Effective methods of identifying, removing and filling in bad pixels reveal significant features of surface fractures. A rich network of edges (probably fractures and subsidence) in difference images spanning the South Napa earthquake give way to a simple set of postseismically slipping faults. Coseismic El Mayor-Cucapah interferograms compared to post-seismic difference images show nearly disjoint patterns of surface fractures in California's Sonoran Desert; the combined pattern reveals a network of near-perpendicular, probably conjugate faults not mapped before the earthquake. The current algorithms for UAVSAR interferogram edge detections are shown to be effective in difficult environments, including agricultural (Napa, Imperial Valley) and difficult urban areas (Orange County.).

  6. Building on Years of Parent and Student Activism to Place a New Education Agenda at the Center of a Mayoral Election

    ERIC Educational Resources Information Center

    Fernández, María C.; Williams, Ocynthia

    2014-01-01

    For over a decade, students and parents in New York City have organized in coalitions across boroughs to fight for an equitable, just school system for all public school students. In a time when the Department of Education (DOE) centralized all power in the hands of one mayor and one schools chancellor, the Urban Youth Collaborative (UYC) and the…

  7. Triggered surface slips in southern California associated with the 2010 El Mayor-Cucapah, Baja California, Mexico, earthquake

    USGS Publications Warehouse

    Rymer, Michael J.; Treiman, Jerome A.; Kendrick, Katherine J.; Lienkaemper, James J.; Weldon, Ray J.; Bilham, Roger; Wei, Meng; Fielding, Eric J.; Hernandez, Janis L.; Olson, Brian P.E.; Irvine, Pamela J.; Knepprath, Nichole; Sickler, Robert R.; Tong, Xiaopeng; Siem, Martin E.

    2011-01-01

    Triggered slip in the Yuha Desert area occurred along more than two dozen faults, only some of which were recognized before the April 4, 2010, El Mayor-Cucapah earthquake. From east to northwest, slip occurred in seven general areas: (1) in the Northern Centinela Fault Zone (newly named), (2) along unnamed faults south of Pinto Wash, (3) along the Yuha Fault (newly named), (4) along both east and west branches of the Laguna Salada Fault, (5) along the Yuha Well Fault Zone (newly revised name) and related faults between it and the Yuha Fault, (6) along the Ocotillo Fault (newly named) and related faults to the north and south, and (7) along the southeasternmost section of the Elsinore Fault. Faults that slipped in the Yuha Desert area include northwest-trending right-lateral faults, northeast-trending left-lateral faults, and north-south faults, some of which had dominantly vertical offset. Triggered slip along the Ocotillo and Elsinore Faults appears to have occurred only in association with the June 14, 2010 (Mw5.7), aftershock. This aftershock also resulted in slip along other faults near the town of Ocotillo. Triggered offset on faults in the Yuha Desert area was mostly less than 20 mm, with three significant exceptions, including slip of about 50–60 mm on the Yuha Fault, 40 mm on a fault south of Pinto Wash, and about 85 mm on the Ocotillo Fault. All triggered slips in the Yuha Desert area occurred along preexisting faults, whether previously recognized or not.

  8. Coseismic and Postseismic Deformation Due to the 2010 El Mayor-Cucapah Earthquake Detected by ALOS/PALSAR Data

    NASA Astrophysics Data System (ADS)

    Okamoto, J.; Hashimoto, M.; Fukushima, Y.

    2011-12-01

    On April 4th, 2010, the Mw 7.2 El Mayor-Cucapah earthquake occurred in northeast Baja California, near the US-Mexico border. Since then, ALOS/PALSAR observed this region twenty times, which provides a rich data set to study the co- and post-seismic deformation. We first estimated the slip distribution and dip angle of the fault plane by inverting InSAR data with the method developed by Fukahata and Wright (2008). With this method, we can obtain the slip distribution on a plane fault and its dip angle simultaneously by minimizing the ABIC (Akaike's Bayesian Information Criterion). In southeastern area near the Gulf of California, we could recognize effects of liquefaction, so we did not use the data in such areas in the inversion. We assumed one sufficiently large rectangular plane fault and the strike is assumed to be 313 degrees from the north. After trials and errors, we restricted the search of the dip angle in a range of 30-90 degrees, dipping northeastward. The optimal dip angle was estimated 68 degrees, which is smaller than 82 degrees of the CMT solution (USGS). Right lateral strike slips with slight normal component were estimated, and the maximum slip of about 3m was obtained in the northwestern vicinity of the hypocenter. The total geodetic moment of our best-fitting model was in a good agreement with the seismic moment. In the postseismic period, we detected signals at two locations that can be attributed to postseismic deformation. First, we recognize some signals near the northwestern edge of the source fault in all the early postseismic interferograms (46 days after the earthquake) of both ascending and descending directions. In this area, the coseismic slip was estimated to be about 2m. We performed some forward calculations to confirm that this signal is not likely to be due to aftershocks. We computed the poroelastic deformation based on our coseismic slip model and found that the observed signal has the opposite sense. Moreover, a 2.5 dimensional

  9. Preparación de los adultos mayores en los Estados Unidos para hacer frente a los desastres naturales: encuesta a escala nacional*

    PubMed Central

    Al-rousan, Tala M.; Rubenstein, Linda M.; Wallace, Robert B.

    2015-01-01

    Objetivos. Nos propusimos determinar el grado de preparación frente a los desastres naturales de los adultos mayores en los Estados Unidos y evaluar los factores que pueden afectar negativamente la salud y la seguridad durante este tipo de incidentes. Métodos. Obtuvimos una muestra de adultos de 50 años en adelante (n = 1 304) de la encuesta del 2010 del Estudio de la Salud y la Jubilación (HRS por su sigla en inglés). La encuesta recogió datos sobre las características demográficas generales, el estado de discapacidad o las limitaciones funcionales, y también sobre factores y comportamientos relacionados con la preparación frente a los desastres. Calculamos una puntuación global de preparación mediante indicadores individuales a fin de evaluar el grado de preparación general. Resultados. La media de la edad de los participantes (n = 1 304) fue de 70 años (desviación estándar [DE] = 9,3). Solo 34,3% informaron que habían participado en un programa formativo o que habían leído materiales sobre la preparación para los desastres. Casi 15% indicaron que usaban dispositivos médicos eléctricos que podían correr riesgo de no funcionar si se interrumpiera el suministro eléctrico. La puntuación de preparación indicó que la edad más avanzada, la discapacidad física y el menor nivel de escolaridad y de ingresos se asociaban independiente y significativamente a un grado de preparación general inferior. Conclusiones. A pesar de la mayor vulnerabilidad ante los desastres y del número cada vez mayor de adultos mayores en los Estados Unidos, muchos de los problemas sustanciales que encontramos son remediables y requieren atención en los sectores de la sociedad dedicados a la atención clínica, a la salud pública y al manejo de situaciones de emergencia.

  10. Co-seismic vertical displacements from a single post-seismic lidar DEM: example from the 2010 El Mayor-Cucapah earthquake

    NASA Astrophysics Data System (ADS)

    Barišin, Ivana; Hinojosa-Corona, Alejandro; Parsons, Barry

    2015-07-01

    A method is outlined by means of which it is possible to estimate high-resolution vertical displacements due to an earthquake even in the case where high-resolution topography is lacking before the earthquake. This result can be achieved by combining a highly accurate, post-event digital elevation model (DEM), for example lidar, with archived satellite imagery. The method is illustrated by calculating vertical displacements for the 2010 El Mayor-Cucapah earthquake. For this earthquake, there are both pre- and post-event lidar DEMs from which vertical displacements may also be estimated after correcting for the lateral advection of topography due to horizontal displacements. A comparison between the two means of deriving vertical displacements shows generally good agreement, with the displacements obtained using satellite imagery performing better in high relief areas. As a result of this property, we are able to trace the vertical offsets due to the El Mayor-Cucapah earthquake as the rupture jumped from the Pescadores fault to the Borrego fault in propagating through the high relief of the Sierra Cucapah.

  11. Mapping 3D fault geometry in earthquakes using high-resolution topography: Examples from the 2010 El Mayor-Cucapah (Mexico) and 2013 Balochistan (Pakistan) earthquakes

    NASA Astrophysics Data System (ADS)

    Zhou, Yu; Walker, Richard T.; Elliott, John R.; Parsons, Barry

    2016-04-01

    Fault dips are usually measured from outcrops in the field or inferred through geodetic or seismological modeling. Here we apply the classic structural geology approach of calculating dip from a fault's 3-D surface trace using recent, high-resolution topography. A test study applied to the 2010 El Mayor-Cucapah earthquake shows very good agreement between our results and those previously determined from field measurements. To obtain a reliable estimate, a fault segment ≥120 m long with a topographic variation ≥15 m is suggested. We then applied this method to the 2013 Balochistan earthquake, getting dips similar to previous estimates. Our dip estimates show a switch from north to south dipping at the southern end of the main trace, which appears to be a response to local extension within a stepover. We suggest that this previously unidentified geometrical complexity may act as the endpoint of earthquake ruptures for the southern end of the Hoshab fault.

  12. UAVSAR observations of triggered slip on the Imperial, Superstition Hills, and East Elmore Ranch Faults associated with the 2010 M 7.2 El Mayor-Cucapah earthquake

    NASA Astrophysics Data System (ADS)

    Donnellan, Andrea; Parker, Jay; Hensley, Scott; Pierce, Marlon; Wang, Jun; Rundle, John

    2014-03-01

    4 April 2010 M 7.2 El Mayor-Cucapah earthquake that occurred in Baja California, Mexico and terminated near the U.S. Mexican border caused slip on the Imperial, Superstition Hills, and East Elmore Ranch Faults. The pattern of slip was observed using radar interferometry from NASA's Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) instrument collected on 20-21 October 2009 and 12-13 April 2010. Right-lateral slip of 36 ± 9 and 14 ± 2 mm occurred on the Imperial and Superstition Hills Faults, respectively. Left-lateral slip of 9 ± 2 mm occurred on the East Elmore Ranch Fault. The widths of the zones of displacement increase northward suggesting successively more buried fault motion to the north. The observations show a decreasing pattern of slip northward on a series of faults in the Salton Trough stepping between the El Mayor-Cucapah rupture and San Andreas Fault. Most of the motion occurred at the time of the M 7.2 earthquake and the UAVSAR observations are consistent with field, creepmeter, GPS, and Envisat observations. An additional 28 ± 1 mm of slip at the southern end of the Imperial Fault over a <1 km wide zone was observed over a 1 day span a week after the earthquake suggesting that the fault continued to slip at depth following the mainshock. The total moment release on the three faults is 2.3 × 1023-1.2 × 1024 dyne cm equivalent to a moment magnitude release of 4.9-5.3, assuming shallow slip depths ranging from 1 to 5 km.

  13. The Virtual Quake Earthquake Simulator: Earthquake Probability Statistics for the El Mayor-Cucapah Region and Evidence of Predictability in Simulated Earthquake Sequences

    NASA Astrophysics Data System (ADS)

    Schultz, K.; Yoder, M. R.; Heien, E. M.; Rundle, J. B.; Turcotte, D. L.; Parker, J. W.; Donnellan, A.

    2015-12-01

    We introduce a framework for developing earthquake forecasts using Virtual Quake (VQ), the generalized successor to the perhaps better known Virtual California (VC) earthquake simulator. We discuss the basic merits and mechanics of the simulator, and we present several statistics of interest for earthquake forecasting. We also show that, though the system as a whole (in aggregate) behaves quite randomly, (simulated) earthquake sequences limited to specific fault sections exhibit measurable predictability in the form of increasing seismicity precursory to large m > 7 earthquakes. In order to quantify this, we develop an alert based forecasting metric similar to those presented in Keilis-Borok (2002); Molchan (1997), and show that it exhibits significant information gain compared to random forecasts. We also discuss the long standing question of activation vs quiescent type earthquake triggering. We show that VQ exhibits both behaviors separately for independent fault sections; some fault sections exhibit activation type triggering, while others are better characterized by quiescent type triggering. We discuss these aspects of VQ specifically with respect to faults in the Salton Basin and near the El Mayor-Cucapah region in southern California USA and northern Baja California Norte, Mexico.

  14. The Virtual Quake earthquake simulator: a simulation-based forecast of the El Mayor-Cucapah region and evidence of predictability in simulated earthquake sequences

    NASA Astrophysics Data System (ADS)

    Yoder, Mark R.; Schultz, Kasey W.; Heien, Eric M.; Rundle, John B.; Turcotte, Donald L.; Parker, Jay W.; Donnellan, Andrea

    2015-12-01

    In this manuscript, we introduce a framework for developing earthquake forecasts using Virtual Quake (VQ), the generalized successor to the perhaps better known Virtual California (VC) earthquake simulator. We discuss the basic merits and mechanics of the simulator, and we present several statistics of interest for earthquake forecasting. We also show that, though the system as a whole (in aggregate) behaves quite randomly, (simulated) earthquake sequences limited to specific fault sections exhibit measurable predictability in the form of increasing seismicity precursory to large m > 7 earthquakes. In order to quantify this, we develop an alert-based forecasting metric, and show that it exhibits significant information gain compared to random forecasts. We also discuss the long-standing question of activation versus quiescent type earthquake triggering. We show that VQ exhibits both behaviours separately for independent fault sections; some fault sections exhibit activation type triggering, while others are better characterized by quiescent type triggering. We discuss these aspects of VQ specifically with respect to faults in the Salton Basin and near the El Mayor-Cucapah region in southern California, USA and northern Baja California Norte, Mexico.

  15. Damage from the El Mayor-Cucapah earthquake, April 2010: Why society cannot afford to ignore seismic risks to agricultural regions

    NASA Astrophysics Data System (ADS)

    Stenner, H. D.; Mathieson, E. L.; Okubo, S.; Anderson, R.; Rodriguez C., M. A.

    2010-12-01

    The M7.2 El Mayor-Cucapah earthquake of April 4, 2010 in Mexico’s Baja California caused extensive damage to the agricultural area of Mexicali Valley. The damage included wide-spread liquefaction and lateral spreading which destroyed or damaged irrigation canals. Without water, wheat, alfalfa, and other crops were lost. Fields were cut by fissures and partially buried by massive sand blows. Regional tilting from the earthquake was a serious issue for the gravity-controlled irrigation system. Ruptured canals and groundwater from sand blows flooded fields, roads, and towns. Flooding further damaged crops and brought contamination with it. Fissures and scarps through farm communities cracked buildings; ruptured water, sewer, and other pipelines; and made roads temporarily difficult to pass. Economically, farmers, seasonal farm workers, and agricultural suppliers were affected; reducing their ability to consume the goods and services of businesses unrelated to agriculture. Similar damage was observed in earlier earthquakes over the past 100 years. Society quickly forgets how the earth responds to strong shaking. We hope to provide a vivid portrait of this agricultural disaster so that other farming communities prone to strong seismic shaking may visualize what can happen from their own inevitable future earthquake. Fissure and sand blows southeast of Cucapah, Baja California, April 16, 2010. Heavily damaged irrigation canal northwest of Zacamoto, Baja California, April 15, 2010.

  16. Slip on faults in the Imperial Valley triggered by the 4 April 2010 Mw 7.2 El Mayor-Cucapah earthquake revealed by InSAR

    NASA Astrophysics Data System (ADS)

    Wei, Meng; Sandwell, David; Fialko, Yuri; Bilham, Roger

    2011-01-01

    Radar interferometry (InSAR), field measurements and creepmeters reveal surface slip on multiple faults in the Imperial Valley triggered by the main shock of the 4 April 2010 El Mayor-Cucapah Mw 7.2 earthquake. Co-seismic offsets occurred on the San Andreas, Superstition Hills, Imperial, Elmore Ranch, Wienert, Coyote Creek, Elsinore, Yuha, and several minor faults near the town of Ocotillo at the northern end of the mainshock rupture. We documented right-lateral slip (<40 mm) on northwest-striking faults and left-lateral slip (<40 mm) on southwest-striking faults. Slip occurred on 15-km- and 20-km-long segments of the San Andreas Fault in the Mecca Hills (≤50 mm) and Durmid Hill (≤10 mm) respectively, and on 25 km of the Superstition Hills Fault (≤37 mm). Field measurements of slip on the Superstition Hills Fault agree with InSAR and creepmeter measurements to within a few millimeters. Dislocation models of the InSAR data from the Superstition Hills Fault confirm that creep in this sequence, as in previous slip events, is confined to shallow depths (<3 km).

  17. Seismicity rate changes in the Salton Sea Geothermal Field and the San Jacinto Fault Zone after the 2010 Mw 7.2 El Mayor-Cucapah earthquake

    NASA Astrophysics Data System (ADS)

    Meng, Xiaofeng; Peng, Zhigang

    2014-06-01

    Whether static or dynamic stress changes play the most important role in triggering earthquakes in the near field is still in debate. Here, we examine the seismicity rate changes in southern California following the 2010 Mw 7.2 El Mayor-Cucapah earthquake. We focus on the Salton Sea Geothermal Field (SSGF) and the San Jacinto Fault Zone (SJFZ) because of high-sensitivity continuous borehole recordings and ample background seismicity. A significant increase in seismic activity is found in both study regions immediately following the main shock. However, near the SSGF where the static Coulomb stress decreased, the seismicity rate dropped below the pre-main-shock rate after ˜1 month. In comparison, along the SJFZ with an increase in the static Coulomb stress, the seismicity rate remained higher than the background rate with several moderate-size earthquakes occurring in the subsequent months. While we cannot completely rule out other mechanisms, these observations are best consistent with a widespread increase in seismicity from dynamic stress changes immediately after the main shock, and longer term seismicity rate changes from static stress changes. Our observation, together with other recent studies, suggests that both static and dynamic stress changes are important in triggering near-field earthquakes, but their affected regions and timescales are different.

  18. Assessing the ability of Pleiades stereo imagery to determine height changes in earthquakes: A case study for the El Mayor-Cucapah epicentral area

    NASA Astrophysics Data System (ADS)

    Zhou, Yu; Parsons, Barry; Elliott, John R.; Barisin, Ivana; Walker, Richard T.

    2015-12-01

    High-resolution surface topography is valuable for studying coseismic fault zone deformation and fault geometry. It enables us to measure three-dimensional surface displacements in earthquakes, as shown in recent studies that used light detection and ranging (lidar) to determine coseismic motion. However, the applicability of lidar is limited by its relatively high cost and low availability. In this study, we use the 2010 El Mayor-Cucapah earthquake to demonstrate the capability of Pleiades stereo imagery to measure coseismic vertical ground displacement. We acquired post-earthquake Pleiades tristereo imagery from backward, near-nadir, and forward orientations for a 45 km × 7 km portion of the epicentral area. One meter resolution digital elevation models (DEMs) were produced with the four different combinations of incidence angles and compared to the post-earthquake lidar DEM. Elevations from tristereo have slightly (˜15%) smaller uncertainties than bistereo as the tristereo DEM incorporates more observations. Elevation differences between the Pleiades and post-earthquake lidar DEMs show that the vertical accuracy of the Pleiades DEMs is ˜0.3 m. By differencing the Pleiades DEM and the pre-earthquake, 5 m resolution lidar DEM, we mapped meter and submeter offsets along the faults obtaining results comparable to a previous study that differenced the two lidar DEMs. This is the first case study of assessing very high resolution (VHR) satellite stereo imagery to determine submeter vertical ground displacement in an earthquake. By extension, we expect it to be possible to measure submeter vertical offsets occurring in earthquakes using pre-earthquake and post-earthquake VHR stereo imagery.

  19. El Mayor-Cucapah (Mw 7.2) earthquake: Early near-field postseismic deformation from InSAR and GPS observations

    NASA Astrophysics Data System (ADS)

    Gonzalez-Ortega, J. A.

    2015-12-01

    El Mayor-Cucapah earthquake occurred on 4 April 2010 in northeastern Baja California just south of the U.S.-Mexico border. The earthquake ruptured several previously mapped faults, as well as some unidentified ones, including the Pescadores, Borrego, Paso Inferior and Paso Superior faults in the Sierra Cucapah, and the Indiviso fault in the Mexicali Valley and Colorado River Delta.We conducted several Global Positioning System (GPS) campaign surveys of preexisting and newly established benchmarks within 30 km of the earthquake rupture. Most of the benchmarks were occupied within days after the earthquake, allowing us to capture the very early postseismic transient motions. The GPS data show postseismic displacements in the same direction as the coseismic displacements; time series indicate a gradual decay in postseismic velocities with characteristic time scales of 66 ± 9 days and 20 ± 3 days, assuming exponential and logarithmic decay, respectively. We also analyzed interferometric synthetic aperture radar (InSAR) data from the Envisat and ALOS satellites. The main deformation features seen in the line-of-sight displacement maps indicate subsidence concentrated in the southern and northern parts of the main rupture, in particular at the Indiviso fault, at the Laguna Salada basin, and at the Paso Superior fault. We show that the near-field GPS and InSAR observations over a time period of 5 months after the earthquake can be explained by a combination of afterslip, fault zone contraction, and a possible minor contribution of poroelastic rebound. Far-field data require an additional mechanism, most likely viscoelastic relaxation in the ductile substrate.

  20. El Mayor-Cucapah (Mw 7.2) earthquake: Early near-field postseismic deformation from InSAR and GPS observations

    NASA Astrophysics Data System (ADS)

    Gonzalez-Ortega, Alejandro; Fialko, Yuri; Sandwell, David; Alejandro Nava-Pichardo, F.; Fletcher, John; Gonzalez-Garcia, Javier; Lipovsky, Brad; Floyd, Michael; Funning, Gareth

    2014-02-01

    El Mayor-Cucapah earthquake occurred on 4 April 2010 in northeastern Baja California just south of the U.S.-Mexico border. The earthquake ruptured several previously mapped faults, as well as some unidentified ones, including the Pescadores, Borrego, Paso Inferior and Paso Superior faults in the Sierra Cucapah, and the Indiviso fault in the Mexicali Valley and Colorado River Delta. We conducted several Global Positioning System (GPS) campaign surveys of preexisting and newly established benchmarks within 30 km of the earthquake rupture. Most of the benchmarks were occupied within days after the earthquake, allowing us to capture the very early postseismic transient motions. The GPS data show postseismic displacements in the same direction as the coseismic displacements; time series indicate a gradual decay in postseismic velocities with characteristic time scales of 66 ± 9 days and 20 ± 3 days, assuming exponential and logarithmic decay, respectively. We also analyzed interferometric synthetic aperture radar (InSAR) data from the Envisat and ALOS satellites. The main deformation features seen in the line-of-sight displacement maps indicate subsidence concentrated in the southern and northern parts of the main rupture, in particular at the Indiviso fault, at the Laguna Salada basin, and at the Paso Superior fault. We show that the near-field GPS and InSAR observations over a time period of 5 months after the earthquake can be explained by a combination of afterslip, fault zone contraction, and a possible minor contribution of poroelastic rebound. Far-field data require an additional mechanism, most likely viscoelastic relaxation in the ductile substrate.

  1. Inferred Rheology and Petrology of Southern California and Northwest Mexico Mantle from Postseismic Deformation following the 2010 El Mayor-Cucapah Earthquake

    NASA Astrophysics Data System (ADS)

    Freed, A. M.; Dickinson, H.; Huang, M. H.; Fielding, E. J.; Burgmann, R.; Andronicos, C.

    2015-12-01

    The Mw 7.2 El Mayor-Cucapah (EMC) earthquake ruptured a ~120 km long series of faults striking northwest from the Gulf of California to the Sierra Cucapah. Five years after the EMC event, a dense network of GPS stations in southern California and a sparse array of sites installed after the earthquake in northern Mexico measure ongoing surface deformation as coseismic stresses relax. We use 3D finite element models of seismically inferred crustal and mantle structure with earthquake slip constrained by GPS, InSAR range change and SAR and SPOT image sub-pixel offset measurements to infer the rheologic structure of the region. Model complexity, including 3D Moho structure and distinct geologic regions such as the Peninsular Ranges and Salton Trough, enable us to explore vertical and lateral heterogeneities of crustal and mantle rheology. We find that postseismic displacements can be explained by relaxation of a laterally varying, stratified rheologic structure controlled by temperature and crustal thickness. In the Salton Trough region, particularly large postseismic displacements require a relatively weak mantle column that weakens with depth, consistent with a strong but thin (22 km thick) crust and high regional temperatures. In contrast, beneath the neighboring Peninsular Ranges a strong, thick (up to 35 km) crust and cooler temperatures lead to a rheologically stronger mantle column. Thus, we find that the inferred rheologic structure corresponds with observed seismic structure and thermal variations. Significant afterslip is not required to explain postseismic displacements, but cannot be ruled out. Combined with isochemical phase diagrams, our results enable us to go beyond rheologic structure and infer some basic properties about the regional mantle, including composition, water content, and the degree of partial melting.

  2. Geologic and structural controls on rupture zone fabric: A field-based study of the 2010 Mw 7.2 El Mayor-Cucapah earthquake surface rupture

    NASA Astrophysics Data System (ADS)

    Teran, O.; Fletcher, J. M.; Oskin, M. E.; Rockwell, T. K.; Hudnut, K. W.; Spelz, R. M.; Akciz, S. O.; Hernandez, A. P.; Morelan, A. E., III

    2014-12-01

    We systematically mapped (scales >1:500) the surface rupture of the 4 April 2010 Mw 7.2 El Mayor-Cucapah earthquake through Sierra Cucapah to understand how faults with similar structural and lithologic characteristics control rupture zone fabric, which is here defined by the thickness, distribution and internal configuration of shearing in a rupture zone. Fault zone architecture and master fault dip showed the strongest controls on rupture zone fabric. Highly localized slip was observed along simple narrow fault cores (<20 m), whereas wide cores (>>50 m) composed of multiple zones of high shear strain had wider and more complex rupture zones that generally lacked principal-displacement scarps. Rupture zone thickness also increases systematically with decreasing fault zone dip. We observed that coseismic slip along faults that dip >40° was mostly confined to the fault core, whereas faults that dip as low as 20° had surface rupture entirely developed entirely outside of the fault zone. The lack of large off-fault strain along faults dipping >40° is contrary to predictions by dynamic stress modeling (e.g., Ma, 2009). We show that static tectonic loading, which varies significantly with fault orientation, has a significant effect not only on rupture zone fabric but also on the evolution of fault zone architecture in this transtensional setting. Rupture zones in undeformed alluvium are dominated by secondary fractures associated with fault-tip propagation, and arrays of fault scarps become wider and more complex with oblique slip compared to pure normal dip-slip or pure strike-slip. Field relations show that as magnitude of coseismic slip increases from 0 to 60 cm, the linkages between kinematically distinct fracture sets increases systematically to the point of forming a through going principal scarp, which is contrary to many analogue models (e.g., Tchalencko, 1970; Naylor et al., 1995) Our data indicate that secondary faults and penetrative off-fault strain

  3. Assessing the Ability of Pleiades Stereo Imagery to Determine Height Changes in Earthquakes: A Case Study for the El Mayor-Cucapah Epicentral Area

    NASA Astrophysics Data System (ADS)

    Parsons, B.; Zhou, Y.; Elliott, J. R.; Barisin, I.; Walker, R. T.

    2014-12-01

    Very high-resolution (VHR) imagery can in principle measure surface topography with decimetric precision. The question is how well 3D mapping based on VHR stereo imagery is capable of capturing sub-metric height changes occurring in an earthquake, particularly those in remote areas? The aim of this study is to assess the capability of the Pleiades satellites to determine such height changes. We acquired Pleiades stereo imagery with backward (B), near-nadir (N) and forward (F) orientations over a 40 km × 5 km area in Baja California, Mexico, part of the epicentral area of the 2010 Mw 7.2 El Mayor-Cucapah earthquake. Coverage was chosen to coincide with the post-seismic LiDAR digital elevation model (DEM) for the area. DEMs have been produced with four different combinations of incidence angles (B-N, N-F, B-F and B-N-F). The raw point cloud has the lowest average density of ~0.7 points/m2 for B-F, ~1.0 points/m2 for B-N and N-F, and the greatest average density of ~3 points/m2 for tri-stereo (B-N-F). Compared to the post-earthquake LiDAR DEM, the Pleiades DEMs have a mean error of 1 m to 4 m, with a standard deviation of 0.5 m to 0.7 m. A series of topographic profiles from the Pleiades DEMs across the earthquake rupture were used to measure vertical offsets. These profiles show that the Pleiades DEM is capable of capturing vertical offsets of ~0.5 m. The measurements of vertical offsets from tri-stereo have smaller uncertainties than bi-stereo; this suggests that the tri-stereo DEM incorporating redundant observations is more robust and reliable. By differencing the 1-m tri-stereo Pleiades DEM and the pre-earthquake, lower-resolution (5-m) LiDAR DEM, we mapped metre and sub-metre offsets along the faults obtaining results comparable to a previous study that differenced the two LiDAR DEMs (Fig. 1). By extension, we expect it to be possible in similar settings to measure sub-metre vertical offsets occurring in earthquakes using pre- and post-event Pleiades stereo

  4. Coupling of Pore Pressure and Ground Motion Data Recorded During the 2010 El Mayor-Cucapah (Baja California) Earthquake at the NEES@UCSB Wildlife Station

    NASA Astrophysics Data System (ADS)

    Lavallee, D.; Seale, S. H.; Steidl, J. H.

    2011-12-01

    Pore pressure built up during an earthquake and the hazard associated with soil liquefaction present a major challenge for our society, as was dramatically displayed during the 2011 Higashi Nihon Daishinsai (Tohoku-oki, Japan) earthquake. Currently, there is a consensus among scientists that a better assessment of the risk associated with liquefaction requires a better understanding of the coupling between pore pressure time histories and ground motion time histories. Specifically, there is a basic need to investigate the coupling as a function of the frequency content of the ground motion. The 2010 El Mayor-Cucapah (Baja California) earthquake (M 7.2) provides a remarkable opportunity to undertake such an investigation and lay the basis to model the coupling. The event was well recorded at the NEES@UCSB Wildlife station located 110 km from the hypocenter. The station is equipped with three-component strong-motion accelerometers at the surface and in boreholes at various depths and with pore pressure transducers located in a saturated, liquefiable layer. The recorded pore pressure and ground motion time histories are both characterized by a frequency content that is a function of time. A wavelet representation is a natural approach to investigate non-stationary time histories. To study the coupling between two signals we use the following procedure: We first compute the wavelet coefficients associated with the two signals. Then we compute the correlation between the wavelet coefficients of the two signals as a function of the frequency. Correlation coefficients provide information about the degree of linear dependence between the two signals. To account for the presence of multiplicative constants relating the wavelet coefficients of the first signal to the wavelet coefficients of the second signal, we compare the square norm of the wavelet coefficients of the two signals for the available frequency range. Additionally, investigating the distribution of the square

  5. 3-D Deformation Field Of The 2010 El Mayor-Cucapah (Mexico) Earthquake From Matching Before To After Aerial Lidar Point Clouds

    NASA Astrophysics Data System (ADS)

    Hinojosa-Corona, A.; Nissen, E.; Arrowsmith, R.; Krishnan, A. K.; Saripalli, S.; Oskin, M. E.; Arregui, S. M.; Limon, J. F.

    2012-12-01

    The Mw 7.2 El Mayor-Cucapah earthquake (EMCE) of 4 April 2010 generated a ~110 km long, NW-SE trending rupture, with normal and right-lateral slip in the order of 2-3m in the Sierra Cucapah, the northern half, where the surface rupture has the most outstanding expression. Vertical and horizontal surface displacements produced by the EMCE have been addressed separately by other authors with a variety of aerial and satellite remote sensing techniques. Slip variation along fault and post-seismic scarp erosion and diffusion have been estimated in other studies using terrestrial LiDAR (TLS) on segments of the rupture. To complement these other studies, we computed the 3D deformation field by comparing pre- to post-event point clouds from aerial LiDAR surveys. The pre-event LiDAR with lower point density (0.013-0.033 pts m-2) required filtering and post-processing before comparing with the denser (9-18 pts m-2) more accurate post event dataset. The 3-dimensional surface displacement field was determined using an adaptation of the Iterative Closest Point (ICP) algorithm, implemented in the open source Point Cloud Library (PCL). The LiDAR datasets are first split into a grid of windows, and for each one, ICP iteratively converges on the rigid body transformation (comprising a translation and a rotation) that best aligns the pre- to post-event points. Testing on synthetic datasets perturbed with displacements of known magnitude showed that windows with dimensions of 100-200m gave the best results for datasets with these densities. Here we present the deformation field with detailed displacements in segments of the surface rupture where its expression was recognized by ICP from the point cloud matching, mainly the scarcely vegetated Sierra Cucapah with the Borrego and Paso Superior fault segments the most outstanding, where we are able to compare our results with values measured in the field and results from TLS reported in other works. EMC simulated displacement field for a

  6. Analysis of Triggering of Earthquakes and Tremor in the Western U.S. due to the 2010 El Mayor Cucapah Earthquake and the Mw6.8 Mendocino Triple Junction Earthquake in 2014

    NASA Astrophysics Data System (ADS)

    Hatch, R. L.; Polet, J.

    2014-12-01

    Recent studies indicate that the passage of seismic waves from large earthquakes are able to trigger small earthquakes and tremor at regional distances. These small events may be detected by applying a high-pass filter to seismograms to remove the much larger ground motion amplitudes from the large distant earthquake. Our interests are in examining the local triggering of earthquakes and tremor throughout the West Coast of North America from the magnitude 7.2 El Mayor-Cucapah 2010 earthquake and the magnitude 6.8 Northern California, March 10, 2014 earthquake, just north of the Mendocino Triple Junction. We will present the results of the analysis of waveform data from hundreds of seismometers throughout Southern California, Northern California, Oregon, Washington, as well as some stations bordering these states. Our preliminary results suggest that triggering of local earthquakes and tremor occurred for both earthquakes. In the case of the records of the Southern California stations for the El Mayor Cucapah 2010 earthquake, 27 stations showed triggering near the seismic station. 13 of these stations are located in or near known geothermal areas, while others were located along active faults and one offshore. While conducting this study, we detected an instrumental noise signal present in 63 of the Southern California seismograms for the El Mayor-Cucapah earthquake. Initially, the signal looked like a typical triggered event, yet with further investigation we found its likely cause to be instrumental noise. We plan to relate our observations of triggered seismicity and tremor to the tectonic environment to test the hypothesis that triggering and tremor most commonly occurs in volcanic and geothermal areas.

  7. Some characteristics of the complex El Mayor-Cucapah, MW7.2, April 4, 2010, Baja California, Mexico, earthquake, from well-located aftershock data from local and regional networks.

    NASA Astrophysics Data System (ADS)

    Frez, J.; Nava Pichardo, F. A.; Acosta, J.; Munguia, L.; Carlos, J.; García, R.

    2015-12-01

    Aftershocks from the El Mayor-Cucapah (EMC), MW7.2, April 4, 2010, Baja California, Mexico, earthquake, were recorded over two months by a 31 station local array (Reftek RT130 seismographs loaned from IRIS-PASSCAL), complemented by regional data from SCSN, and CICESE. The resulting data base includes 518 aftershocks with ML ≥ 3.0, plus 181 smaller events. Reliable hypocenters were determined using HYPODD and a velocity structure determined from refraction data for a mesa located to the west of the Mexicali-Imperial Valley. Aftershock hypocenters show that the El Mayor-Cucapah earthquake was a multiple event comprising two or three different ruptures of which the last one constituted the main event. The main event rupture, which extends in a roughly N45°W direction, is complex with well-defined segments having different characteristics. The main event central segment, located close to the first event epicenter is roughly vertical, the northwest segment dips ~68°NE, while the two southeast segments dip ~60°SW and ~52°SW, respectively, which agrees with results of previous studies based on teleseismic long periods and on GPS-INSAR. All main rupture aftershock hypocenters have depths above 10-11km and, except for the central segment, they delineate the edges of zones with largest coseismic displacement. The two southern segments show seismicity concentrated below 5km and 3.5km, respectively; the paucity of shallow seismicity may be caused by the thick layer of non-consolidated sediments in this region. The ruptures delineated by aftershocks in the southern regions correspond to the Indiviso fault, unidentified until the occurrence of the EMC earthquake. The first event was relocated together with the aftershocks; the epicenter lies slightly westwards of published locations, but it definitely does not lie on, or close to, the main rupture. The focal mechanism of the first event, based on first arrival polarities, is predominantly strike-slip; the focal plane

  8. Mayoral Intervention: Right For Seattle Schools?

    ERIC Educational Resources Information Center

    Watson, Ashley E.; Hill, Paul T.

    2008-01-01

    Big-city school systems face many problems, including high dropout rates, low academic achievement, and achievement gaps between middle-class and low-income children. Many big-city systems are also losing enrollment and facing financial deficits. These problems inevitably lead to criticism of the boards that govern urban school districts, and…

  9. Biology at Lord Mayor Treloar College.

    ERIC Educational Resources Information Center

    Lones, Jane

    1985-01-01

    The benefits of participating in biology instruction (with a stress on human biology) for physically handicapped students are noted. Risks in the laboratory are considered and balanced with the advantages of direct contact with the natural world. (CL)

  10. The Mayors' Charter Schools

    ERIC Educational Resources Information Center

    Magee, Michael

    2014-01-01

    In 2007, the case could be made that Rhode Island had, dollar for dollar, the worst-performing public education system in the United States. Despite per-pupil expenditures ranking in the top 10 nationally, the state's 8th graders fared no better than 40th in reading and 33rd in math on the National Assessment of Educational Progress (NAEP).…

  11. Assessing long-term postseismic deformation following the M7.2 4 April 2010, El Mayor-Cucapah earthquake with implications for lithospheric rheology in the Salton Trough

    NASA Astrophysics Data System (ADS)

    Spinler, Joshua C.; Bennett, Richard A.; Walls, Chris; Lawrence, Shawn; González García, J. Javier

    2015-05-01

    The 4 April 2010 Mw 7.2 El Mayor-Cucapah (EMC) earthquake provides the best opportunity to date to study the lithospheric response to a large (>M6) magnitude earthquake in the Salton Trough region through analysis of Global Positioning System (GPS) data. In conjunction with the EarthScope Plate Boundary Observatory (PBO), we installed six new continuous GPS stations in the months following the EMC earthquake to increase station coverage in the epicentral region of northern Baja California, Mexico. We modeled the pre-EMC deformation field using available campaign and continuous GPS data for southern California and northern Baja California and inferred a pre-EMC secular rate at each new station location. Through direct comparison of the pre- and post-EMC secular rates, we calculate long-term changes associated with viscoelastic relaxation in the Salton Trough region. We fit these velocity changes using numerical models employing an elastic upper crustal layer underlain by a viscoelastic lower crustal layer and a mantle half-space. Forward models that produce the smallest weighted sum of squared residuals have an upper mantle viscosity in the range 4-6 × 1018 Pa s and a less well-resolved lower crustal viscosity in the range 2 × 1019 to 1 × 1022 Pa s. A high-viscosity lower crust, despite high heat flow in the Salton Trough region, is inconsistent with felsic composition and might suggest accretion of mafic lower crust associated with crustal spreading obscured by thick sedimentary cover.

  12. WWC Review of the Report "Meeting the Challenge of Combating Chronic Absenteeism: Impact of the NYC Mayor's Interagency Task Force on Chronic Absenteeism and School Attendance and Its Implications for Other Cities." What Works Clearinghouse Single Study Review

    ERIC Educational Resources Information Center

    What Works Clearinghouse, 2014

    2014-01-01

    The 2013 study, "Meeting the Challenge of Combating Chronic Absenteeism: Impact of the NYC Mayor's Interagency Task Force on Chronic Absenteeism and School Attendance and Its Implications for Other Cities", examined the impact of the strategies developed by an interagency task force in New York City to combat chronic absenteeism in…

  13. Testing long-period ground-motion simulations of scenario earthquakes using the Mw 7.2 El Mayor-Cucapah mainshock: Evaluation of finite-fault rupture characterization and 3D seismic velocity models

    USGS Publications Warehouse

    Graves, Robert W.; Aagaard, Brad T.

    2011-01-01

    Using a suite of five hypothetical finite-fault rupture models, we test the ability of long-period (T>2.0 s) ground-motion simulations of scenario earthquakes to produce waveforms throughout southern California consistent with those recorded during the 4 April 2010 Mw 7.2 El Mayor-Cucapah earthquake. The hypothetical ruptures are generated using the methodology proposed by Graves and Pitarka (2010) and require, as inputs, only a general description of the fault location and geometry, event magnitude, and hypocenter, as would be done for a scenario event. For each rupture model, two Southern California Earthquake Center three-dimensional community seismic velocity models (CVM-4m and CVM-H62) are used, resulting in a total of 10 ground-motion simulations, which we compare with recorded ground motions. While the details of the motions vary across the simulations, the median levels match the observed peak ground velocities reasonably well, with the standard deviation of the residuals generally within 50% of the median. Simulations with the CVM-4m model yield somewhat lower variance than those with the CVM-H62 model. Both models tend to overpredict motions in the San Diego region and underpredict motions in the Mojave desert. Within the greater Los Angeles basin, the CVM-4m model generally matches the level of observed motions, whereas the CVM-H62 model tends to overpredict the motions, particularly in the southern portion of the basin. The variance in the peak velocity residuals is lowest for a rupture that has significant shallow slip (<5 km depth), whereas the variance in the residuals is greatest for ruptures with large asperities below 10 km depth. Overall, these results are encouraging and provide confidence in the predictive capabilities of the simulation methodology, while also suggesting some regions in which the seismic velocity models may need improvement.

  14. Factores socio-económicos asociados a la percepción de situación socioeconómica entre adultos mayores de dos países latinoamericanos

    PubMed Central

    Brenes-Camacho, Gilbert

    2014-01-01

    El objetivo principal del artículo es estudiar la asociación entre la percepción subjetiva sobre la situación económica propia y una serie de medidas objetivas de bienestar socioeconómico –fuentes de ingresos, tenencia de vivienda, nivel educativo y transferencias familiares informales de dinero- entre adultos mayores de dos países Latinoamericanos: México y Costa Rica. Los datos se obtienen de las primeras rondas de dos encuestas sobre envejecimiento: CRELES para Costa Rica y ENASEM para México. La variable dependiente más importante se obtiene de las respuestas a las pregunta “¿Cómo califica su situación económica actual?” en Costa Rica y “¿Diría usted que su situación económica es…?” en México. Para ambas encuestas, las respuestas se codificaron en forma binaria; el código 0 representa las categorías Excelente, Muy buena y Buena, y el código 1 representa a las categorías Regular y Mala. Se encontró que el ingreso por jubilación es un importante determinante de la percepción de bienestar en ambos países. En Costa Rica, el ingreso del cónyuge y la tenencia de vivienda son importantes predictores de la percepción de bienestar, mientras que en México, los ingresos por transferencias están fuertemente asociados con dicha percepción. PMID:25360057

  15. Late Quaternary Range-Front Fault Scarps in the Western Sierra El Mayor, Baja California, Mexico: A Geomorphologic Expression of Slip Across an Active Low-Angle Normal Fault

    NASA Astrophysics Data System (ADS)

    Spelz, R. M.; Fletcher, J.; Owen, L.

    2006-12-01

    The western margin of the Sierra El Mayor (SEM), in northeastern Baja California, is controlled by an active, top-to-the-west, low-angle normal fault named the Canada David detachment (CDD) that accommodates part of the extensional component of shearing between the Pacific and North American plates. The CDD has a length of 60 km and shows a curvilinear trace with two major antiformal and synformal megamullion pairs. Late Quaternary slip has produced a broad array of Quaternary scarps cutting alluvial fans along nearly the entire length of the CDD. Detailed mapping reveals eight regional strath terraces distinguished by surface weathering characteristics, soil profile development and relative elevation. Relative height between terraces increases in domains where the CDD and basin deposits are being uplifted due to either the basinward migration of faulting (e.g., rolling hinge) or flexural uplift in antiformal megamullion domains. Linear diffusion analysis of 46 synthetic fault scarps, with a calculated angle of repose Θo = 28.75°, reveal fault scarp domains exhibiting both multi-modal and unimodal distribution of diffusion ages (kt). Uni-modal domains are typically younger, but there is no systematic variation in scarp age with distance along the CDD. Scarps yielding negative kt ages (i.e. scarps steeper than Θo) are common in the north, near inferred locations of important historic seismic events. Microseismicity drops off significantly adjacent to these very young scarp arrays, which likely reflects a recent post-seismic stress drop. Domains of high seismic risk are identified by high microseismicity and lack of young scarps. Minimum estimates of the diffusivity constant (k) are calculated by coupling scarp diffusion ages and 10Be surface exposure ages of the faulted deposits. In the southernmost SEM a Q6 terrace with a minimum surface exposure age t = 233±6.6 ky (weighted mean of six rock samples) is cut by scarps with an average kt = 11.25±9.31 m2, which

  16. Precise Relocation of the Northern Extent of the Aftershock Sequence Following the 4 April 2010 M7.2 El Mayor-Cucapah Earthquake Kayla A. Kroll (UCR) and Elizabeth S. Cochran (UCR)

    NASA Astrophysics Data System (ADS)

    Kroll, K.; Cochran, E. S.

    2010-12-01

    Following the 4 April 2010 M7.2 El Mayor-Cucapah earthquake, teams from UC Riverside, UC Santa Barbara, and San Diego State University installed an array of 8 temporary seismometers in the Yuha Desert area north of the Mexican border. This temporary array complemented the existing network stations and continuously recorded data from the aftershock sequence from 6 April through 14 June 2010. SCSN and the temporary aftershock array data will be used to study several aspects of fault structure and behavior, including precise relocation of the aftershock sequence. While the mainshock sequence ruptured multiple fault strands west of the Cerro Prieto fault, and south of the Sierra Cucapah Range, the aftershocks are densely clustered in three areas. The largest cluster is located to the northwest of the mainshock, in an area with no previously mapped faults. By relocating aftershocks, we hope to illuminate the network of faults that extend from the Laguna Salada fault in Mexico to its northern extension towards the Elsinore and San Jacinto faults. Right-lateral displacements up to 2 cm were identified on several right- and left-lateral fault segments by the USGS/CGS geologists in the area south of Hwy 98, and into the Pinto Wash (Treiman et al., personal communication, 2010). We relocate aftershocks within a 20 km by 14 km region containing 1 network and 8 temporary stations. Within this region over 4,000 aftershocks are in the SCEDC catalog from 6 April to 14 June 2010, during the time the temporary network was installed. The P and S wave arrival times for both the network and temporary stations were manually picked for each of these events. We compute the double difference hypocenter locations using the picked phase arrivals and waveform cross-correlations in the hypocenter relocation program, hypoDD (Waldhauser & Ellsworth 2000). In the event relocation, we used the velocity profile for the Imperial Valley from the SCEC Unified Velocity Model (Version 4). Future work

  17. A New Ensemble-Based Method for Assessing Uncertainties and Parameter Tradeoffs in Complex Models of Postseismic Deformation: Application to the 2010 M=7.2 El Mayor-Cucapah Earthquake

    NASA Astrophysics Data System (ADS)

    Rollins, C.; Barbot, S.; Avouac, J. P.

    2014-12-01

    The 2010 M=7.2 El Mayor-Cucapah earthquake occurred in the Salton Trough, a region of thinned lithosphere and high heat flow, and the postseismic deformation following this earthquake presents a unique opportunity to study the rheology of extensional environments and the mechanics of ductile flow within and beneath the lithosphere. Previous work [Rollins et al, in prep.] revealed that GPS timeseries of surface displacement following the earthquake were well fit to a coupled model simulating stress-driven afterslip on the deep extension of the coseismic rupture, Newtonian viscoelastic relaxation in a low-viscosity zone in the lower crust of the Salton Trough aligned with areas of high heat flow, and Newtonian viscoelastic relaxation in a three-dimensional asthenosphere with geometry matching that of the regional lithosphere-asthenosphere boundary inferred from receiver functions. Extending the success of this model to a robust interpretation of the mechanics of deformation at depth requires a better understanding of uncertainties and trade-offs between parameters (depth of the brittle-ductile transition, viscosities of the lower crust and asthenosphere, geometry of viscosity anomalies in the Salton Trough, frictional parameters of the possible downdip extensions of the coseismic rupture, and correlations among these parameters). We will show results from recent work that uses a newly developed method to efficiently explore this model space in a Bayesian sense. The method employs the Neighborhood Algorithm of Sambridge [1999], which makes use of Voronoi cells to optimize the search in the model space, samples regions that contains models of acceptable data fit, and extracts robust information from the ensemble of models obtained. The method is particularly well suited to identify a class of models that fit geodetic data approximately equally well, allowing us to present and discuss a range of possible deformation mechanisms. This method can be applied to any study of

  18. The EL Mayor-Cucapah Earthquake of April 4, 2010 (mw 7.2): Main Shock and Aftershocks Relocation and Relevant Aspects of the Strong Motion Data Recorded in the Epicenter Region. (Invited)

    NASA Astrophysics Data System (ADS)

    Munguia, L.

    2010-12-01

    The El Mayor-Cucapah earthquake (Mw = 7.2) was the largest earthquake to occur in northeastern Baja California since February 1892, when an earthquake of slightly lower magnitude occurred at the northwestern end of the Laguna Salada fault. This event, with epicenter located ~ 40 km south of the city of Mexicali, occurred on April 4, 2010 at 15:40 local time or 22:40 UTC. Thirteen strong motion stations of a network operated by CICESE in Baja California were triggered by the main shock. Those stations are located at distances of 12 to 140 km from the epicenter. Six of them are located on sediments of the Mexicali Valley, at less than 40 km from the epicenter; the other seven stations recorded at larger distances, on granitic rocks of the peninsular ranges of Baja California. In this study, we analyze the digital accelerograms produced by the main shock and by most of the larger aftershocks. At first, the P-wave arrival times measured on the accelerograms were combined with time readings from the closer-to-the-source weak-motion stations to relocate the hypocenters. With this, we attempted to improve the hypocenter locations obtained on the basis of more regional data sets. Due to lack of station coverage to the south of the main-shock’s epicenter, this task was particularly important for those aftershocks occurring along the SE extension of the ruptured area. Our located hypocenters had smaller location errors and provide a better insight about the extent of the main-shock rupture to southeast. Concerning the strong motion data, we noted that on sediments the recorded peak ground accelerations (PGA) varied from 0.148 to 0.815 g, while on the rock sites the PGA were in the range 0.013 to 0.074 g. The largest peak acceleration recorded was observed on the vertical component of the MDO station, sited on sediments. For ground velocity and displacement, the peak values from sedimentary sites are between 14 and 61 cm/sec and 9 and 52 cm, respectively. In such instances

  19. Different styles of postseismic deformation after the 2013 M7.7 Balochistan earthquake in Pakistan and the 2010 M7.2 El Mayor-Cucapah earthquake in Mexico

    NASA Astrophysics Data System (ADS)

    Fielding, E. J.; Yague-Martinez, N.; Motagh, M.; Gonzalez-Ortega, J. A.; Huang, M. H.; Burgmann, R.; Freed, A. M.; Samsonov, S. V.

    2014-12-01

    We study postseismic deformation after the Mw 7.7 earthquake in the Balochistan region of western Pakistan on 24 September 2013 and the Mw 7.2 El Mayor-Cucapah (EMC) earthquake in Baja California of northern Mexico on 4 April 2010. Pakistan InSAR measurements from the German TerraSAR-X (TSX) and Canadian RADARSAT-2 (RS2) satellites include TSX narrow stripmap beams on a descending track, RS2 wide strip modes, and TSX wide-swath ScanSAR images on an ascending track, specially acquired with interferometric alignment of ScanSAR bursts. For the EMC earthquake, InSAR includes Envisat, ALOS, and RS2 satellites and NASA/JPL UAVSAR airborne InSAR, with piece-wise time coverage. Plate Boundary Observatory acquires continuous GPS data and others collect campaign GPS. Interferograms show significant afterslip on both main ruptures in the first weeks and months, not masked by the atmospheric effects. Balochistan shallow afterslip reaches at least 10 cm in 2-4 months in the same area as the largest coseismic slip, but less near the aftershock activity. Rapid afterslip was observed primarily at the ends of the EMC mainshock rupture where the strike changes, with magnitudes up to 30 cm. Large variations of tropospheric water vapor complicate measurement of small long-wavelength deformation so we do time series analysis. We expect viscoelastic relaxation after these two strike-slip earthquakes to differ due to completely opposite tectonic settings: EMC earthquake in the Salton Trough rift and fast-moving strike-slip system, where crust and lithosphere are thin and hot with very shallow asthenosphere, and Balochistan earthquake in the shortening Makran accretional prism with much slower strike-slip deformation rates and cold and thick lithosphere of the subducting Arabian plate directly beneath it, so asthenosphere is much deeper. Studies have found rapid and large viscoelastic relaxation for the EMC quake, but we don't expect measurable relaxation in the Balochistan area in the

  20. Spectral Amplification Factors of Long-Period (3 to 10 s) Strong Ground Motions in and around the Los Angeles Basin during the Mw7.2 El Mayor-Cucapah Earthquake of April 4, 2010

    NASA Astrophysics Data System (ADS)

    Hatayama, K.; Kalkan, E.

    2012-12-01

    We evaluated spectral amplification factors of long-period ground motions (3 to 10 s) in the Los Angeles (LA) basin by computing Fourier spectral ratios of the basin sites with respect to the surrounding reference hard-rock sites from the Mw7.2 April 4, 2010 El Mayor-Cucapah earthquake records and presented period-specific (4, 6, 8 and 10 s) maps of amplification factors for the long periods. This earthquake was the first event providing many (236) high-quality recordings to study spatial variation of long-period amplification in the LA basin. We also tried numerical wave propagation simulations for two of the recent 3D seismic-velocity models for south California: SCEC (Southern California Earthquake Center) CVM (Community Velocity Model)-4.0 and CVM-H 6.2 to examine how these models account for the observed long-period amplification factors. Comparison of the period-specific maps of amplification factors between the observation and the simulation for the two velocity models shows that both CVM-4.0 and CVM-H 6.2 can roughly reproduce the observed amplification factors with the period range of 8 to 10 s in the LA basin. Concerning the shorter-period range (4 to 6 s), however, both of the two models leave more to be improved so that the observed amplification factors can be better simulated. We also find that CVM-4.0 has an advantage over CVM-H 6.2 in terms of the south-eastern part of the LA basin, because CVM-H 6.2 indicates non-observed large amplification there, while CVM-4.0 does not indicate the false amplification. For the period of 10 s, the largest amplification factor of about 5 was observed in the central part of the LA basin, which is well simulated in terms of good agreements between the observed and the simulated amplification factors. The simulation from the two velocity models also indicates the large amplification even in the San Gabriel (SG) valley, which disagrees with the observation. For 8 s, larger amplification factors of about 5 were observed

  1. Strike-slip Fault Structure in the Salton Trough and Deformation During and After the 2010 M7.2 El Mayor-Cucapah Earthquake from Geodetic and Seismic Data

    NASA Astrophysics Data System (ADS)

    Fielding, E. J.; Sun, J.; Gonzalez-Ortega, A.; González-Escobar, M.; Freed, A. M.; Burgmann, R.; Samsonov, S. V.; Gonzalez-Garcia, J.; Fletcher, J. M.; Hinojosa, A.

    2013-12-01

    The Pacific-North America plate boundary character changes southward from the strike-slip and transpressional configuration along most of California to oblique rifting in the Gulf of California, with a transitional zone of transtension beneath the Salton Trough in southernmost California and northern Mexico. The Salton Trough is characterized by extremely high heat flow and thin lithosphere with a thick fill of sedimentary material delivered by the Colorado River during the past 5-6 million years. Because of the rapid sedimentation, most of the faults in Salton Trough are buried and reveal themselves when they slip either seismically or aseismically. They can also be located by refraction and reflection of seismic waves. The 4 April 2010 El Mayor-Cucapah earthquake (Mw 7.2) in Baja California and Sonora, Mexico is probably the largest earthquake in the Salton Trough for at least 120 years, and had primarily right-lateral strike-slip motion. The earthquake ruptured a complex set of faults that lie to the west of the main plate boundary fault, the Cerro Prieto Fault, and shows that the strike-slip fault system in the southern Salton Trough has multiple sub-parallel active faults, similar to southern California. The Cerro Prieto Fault is still likely absorbing the majority of strain in the plate boundary. We study the coseismic and postseismic deformation of the 2010 earthquake with interferometric analysis of synthetic aperture radar (SAR) images (InSAR) and pixel tracking by subpixel correlation of SAR and optical images. We combine sampled InSAR and subpixel correlation results with GPS (Global Positioning System) offsets at PBO (Plate Boundary Observatory) stations to estimate the likely subsurface geometry of the major faults that slipped during the earthquake and to derive a static coseismic slip model. We constrained the surface locations of the fault segments to mapped locations in the Sierra Cucapah to the northwest of the epicenter. SAR along-track offsets

  2. When Mayors Use School Choice as a Reform Strategy

    ERIC Educational Resources Information Center

    Wong, Kenneth K.; Shen, Francis X.; Pachucki, Lauren M.

    2006-01-01

    All political scientists who study education policy start their analysis with a similar premise: "educational reform does not take place in political vacuum." Studies of the politics of school choice have focused primarily on state-level political dynamics. This line of research makes sense since the charter school market is initially created and…

  3. Blackstone Valley Prep Mayoral Academy: BVP High School

    ERIC Educational Resources Information Center

    EDUCAUSE, 2015

    2015-01-01

    This Rhode Island charter high school serves an intentionally diverse population of students from two urban and two suburban communities. The blended learning model is tailored by grade level and emphasizes differentiation, deeper learning in a community, and assessment. The two-page grantee profiles from Next Generation Learning Challenges (NGLC)…

  4. The Significance for Education Reform of the New York City Mayoral Election

    ERIC Educational Resources Information Center

    Noguera, Pedro

    2014-01-01

    In this first 2014 issue of "Voices in Urban Education," Oona Chatterjee, the Annenberg Institute's associate director for New York City organizing, interviews Pedro Noguera, the Peter L. Agnew Professor of Education at New York University, a noted researcher and national commentator on topics such as urban school reform, conditions…

  5. Youth Chance. A Program of the San Francisco Mayor's Office of Employment and Training.

    ERIC Educational Resources Information Center

    Lesser & Ogden Associates, San Francisco, CA.

    The San Francisco-based YMCA Youth Chance began in 1978 as a Youth Community Conservation and Improvement "sweat program"--a means of providing unemployed high school dropouts with CETA (Comprehensive Employment and Training Act)-funded jobs. Youth Chance continues to train males and females, 16-19 years of age, who meet CETA requirements.…

  6. Estructura de las burbujas en la region sureste de la Nube Mayor de Magallanes

    NASA Astrophysics Data System (ADS)

    Oddone, M. A.; Ambrocio-Cruz, S. P.; LeCoarer, E.; Goldes, G. V.

    In this work we present preliminary results obtained from the analysis carried out on the medium-size bubble structures located in the southeast region of the Large Magellanic Cloud (LMC). We determine the characteristic parameters of these structures (surface brightness; electronic density; emission measure; mass; luminosity; ambient density; age; energy; among others). This will allow us to discriminate which is the origin (stellar wind; supernova explosion; or other mechanisms) of the different bubbles that form the LMC9 supershell. Thus; we will try to determine whether the analyzed objects have kinematically some identity as a group; or they are relatively isolated objects on the diffuse background they belong to. FULL TEXT IN SPANISH

  7. Beauty and Intelligence May--or May Not--Be Related

    ERIC Educational Resources Information Center

    Denny, Kevin

    2008-01-01

    In a recent paper, [Kanazawa S. & Kovar J.L. (2004). Why beautiful people are more intelligent, "Intelligence," 32, 227-243] assert that given certain empirical regularities about assortative mating and the heritability of intelligence and beauty, that it logically follows that more intelligent people are more beautiful. It is argued here that…

  8. Mayors' Report Card on Education: Informed and Engaged for Student Success

    ERIC Educational Resources Information Center

    George W. Bush Institute, Education Reform Initiative, 2015

    2015-01-01

    Making robust and reliable information about schools accessible is one of the most powerful ways to foster engagement and promote informed decisions that will shape our communities. Though education data is frequently collected and aggregated at the state level, data is rarely synthesized across cities. This report provides comparable information…

  9. Groundwater hydrogeochemistry of mayor ions in the Radovna River valley (NW Slovenia)

    NASA Astrophysics Data System (ADS)

    Torkar, Anja; Brenčič, Mihael; Vreča, Polona

    2013-04-01

    Chemical analysis of major elements was used to investigate the characteristics of various springs and surface water in the Radovna River valley. The valley is situated in the north-western part of Slovenia. It is 17-kilometre long Alpine river flowing between karstic plateaus of Pokljuka and Mežakla confluenting with Sava Dolinka River. Wider area of the valley is built up by Triassic limestone and dolomite. Quaternary alluvial and glacial sediments occur in the bottom of the valley and on the slopes of the plateaus. Water was sampled monthly from May 2005 till March 2007 at 10 locations along the valley. Locations are divided into: 5 springs, 3 surface water locations, 1 small lake and 1 artesian borehole. On site conductivity, pH and water temperature was measured and samples for chemical analyses were collected. Groundwater, spring water and surface water are related to carbonate rocks; therefore the pH of the samples is in range between 7.1 and 8.4. In most cases pH of river water is higher than that of groundwater and spring water. Conductivity of the water varied in the interval between 188 μS/cm and 374 μS/cm. Results of chemical analyses show that concentration of Ca2+ exceeds that of Mg2+ in all of the samples and Ca/Mg ratio varies between 2.6 and 16.8. The concentration of Na+ is lower than Mg2+, but always higher than that of K+. Predominant anion is the HCO3- and varies between 100 mg/l and 211 mg/l. Concentration of anions Cl-, NO3- and SO42- are low and range from 0.1 mg/l to 7.47 mg/l and between 0.62 mg/l and 12 mg/l for Cl- and SO42-, respectively. NO3- is in almost all of the samples below 1 mg/l. Water data shows that waters are alkaline and the dominant facies is Ca-Mg-HCO3-. Ion concentrations fluctuate seasonally and are related to changes in discharge. In winter and early spring, when the discharge is low, the ion concentrations are higher and in late spring and summer during snowmelt, when the discharge is higher, the ion concentration are lower. Generally, ion concentrations in the water are also increasing downstream from the main spring. Chemical analyses of the water samples reflect typical karst spring dynamics and dynamics of groundwater fluctuations in the alluvium. Along the course of the river, water flow is increasing due to great amount of groundwater drainage in to the stream, therefore the chemical concentrations are increasing downstream.

  10. Documents Informing Students, Students Informing officials: The Project Citizen Mayoral Youth Conference

    ERIC Educational Resources Information Center

    Sardinas, Maria Elena

    2005-01-01

    This article describes "We the People: Project Citizen Program," a curricular program for middle school students. "We the People" promotes competent and responsible participation in local and state government. Additionally, it helps young people learn how to monitor and influence public policy. Entire classes of students or members of youth…

  11. A resolution honoring the life of Thomas M. Menino, Mayor of Boston, Massachusetts, from 1993 to 2014.

    THOMAS, 113th Congress

    Sen. Warren, Elizabeth [D-MA

    2014-11-20

    11/20/2014 Submitted in the Senate, considered, and agreed to without amendment and with a preamble by Unanimous Consent. (consideration: CR S6221; text as passed Senate: CR S6211-6212) (All Actions) Tracker: This bill has the status Passed SenateHere are the steps for Status of Legislation:

  12. A resolution honoring the life of Kevin Hagan White, the Mayor of Boston, Massachusetts from 1968 to 1984.

    THOMAS, 112th Congress

    Sen. Kerry, John F. [D-MA

    2012-02-01

    02/01/2012 Submitted in the Senate, considered, and agreed to without amendment and with a preamble by Unanimous Consent. (consideration: CR S276-277; text as passed Senate: CR S277; text of measure as introduced: CR S265) (All Actions) Tracker: This bill has the status Passed SenateHere are the steps for Status of Legislation:

  13. Business Culture and the Death of Public Education: Mayor Bloomberg, David Steiner, and the Politics of Corporate "Leadership"

    ERIC Educational Resources Information Center

    Giroux, Henry A.

    2011-01-01

    This article provides a case study of how a business culture imposes modes of educational leadership on a public school system in New York City that has little if any concerns for empowering children, teachers, and the communities. The article provides a counter-narrative that serves to dispel the notion that the culture of educational empowerment…

  14. Medicines and You: A Guide for Older Adults = Las medicinas y usted: Guia para las personas mayores.

    ERIC Educational Resources Information Center

    National Coalition of Hispanic Health and Human Services Organizations.

    Most people over 65 take many prescription and nonprescription medicines. Because the body is changing and more medicines are taken, many older adults experience harmful reactions to the medicines they take. This booklet, written in both English and Spanish (on facing pages), was developed to help older adults learn more about medicines, recognize…

  15. Building Blocks for Better Schools: How the Next Mayor Can Prepare New York's Students for College and Careers

    ERIC Educational Resources Information Center

    Hemphill, Clara; Nauer, Kim; White, Andrew; Jacobs, Thomas

    2013-01-01

    The shift in education reform to a goal of college and career readiness for all students is a change that has been embraced widely across the country. The challenge of designing new policies and programs that could accomplish the goal that all students should graduate from high school with the skills and knowledge necessary to succeed in college…

  16. Prenatal care. Appointment study: a survey by the Infant Mortality Work Group of the Mayor's Advisory Council on Child Health.

    PubMed

    1993-01-01

    This biopsy of the prenatal care system provides plain evidence of weaknesses within the infrastructure and details the inconveniences New York City women who rely on public services must face. The unwillingness of some of the municipal clinics to accept pregnancy test results from their sister hospitals or the Department of Health's free-pregnancy testing program exemplifies one of the bureaucratic barriers in the system, and one which could be rectified easily given sufficient determination. Other bureaucratic barriers, such as the inability to schedule an appointment unless a woman is registered at the clinic, suggest the need for a media campaign urging women of reproductive age to register with a health care provider before becoming pregnant. The solution to the language barrier confronted by Spanish women requires a commitment to hiring bilingual clerical staff. Lastly, the problems of being placed "on-hold" or frequent busy signals and the high number of clinic visits made before seeing a physician can only be ameliorated by an increase in funding for prenatal care clinic staffing, for support staff and professionals alike. The survey, conducted over the course of 2 weeks with available city staff and equipment, is a relatively inexpensive and effective method for evaluating the prenatal care system and should be repeated in order to document systematically the anecdotal reports shared by clinic administration and clinic patients alike. PMID:8401467

  17. Interactive Physical Simulation of Catheter Motion within Mayor Vessel Structures and Cavities for ASD/VSD Treatment

    NASA Astrophysics Data System (ADS)

    Becherer, Nico; Hesser, Jürgen; Kornmesser, Ulrike; Schranz, Dietmar; Männer, Reinhard

    2007-03-01

    Simulation systems are becoming increasingly essential in medical education. Hereby, capturing the physical behaviour of the real world requires a sophisticated modelling of instruments within the virtual environment. Most models currently used are not capable of user interactive simulations due to the computation of the complex underlying analytical equations. Alternatives are often based on simplifying mass-spring systems, being able to deliver high update rates that come at the cost of less realistic motion. In addition, most techniques are limited to narrow and tubular vessel structures or restrict shape alterations to two degrees of freedom, not allowing instrument deformations like torsion. In contrast, our approach combines high update rates with highly realistic motion and can in addition be used with respect to arbitrary structures like vessels or cavities (e.g. atrium, ventricle) without limiting the degrees of freedom. Based on energy minimization, bending energies and vessel structures are considered as linear elastic elements; energies are evaluated at regularly spaced points on the instrument, while the distance of the points is fixed, i.e. we simulate an articulated structure of joints with fixed connections between them. Arbitrary tissue structures are modeled through adaptive distance fields and are connected by nodes via an undirected graph system. The instrument points are linked to nodes by a system of rules. Energy minimization uses a Quasi Newton method without preconditioning and, hereby, gradients are estimated using a combination of analytical and numerical terms. Results show a high quality in motion simulation when compared to a phantom model. The approach is also robust and fast. Simulating an instrument with 100 joints runs at 100 Hz on a 3 GHz PC.

  18. Primera determinacion de los parametros fundamentales de 41 cumulos estelares debiles de la Nube Mayor de Magallanes

    NASA Astrophysics Data System (ADS)

    Palma, T.; Clariá, J. J.; Geisler, D.; Ahumada, A. V.

    We present results obtained for 41 faint star clusters located in the bar and the disc of the Large Magellanic Cloud (LMC). The observations were carried out with the ``Victor Blanco'' 4m telescope at Cerro Tololo Inter-American Observatory using the Washington and Kron-Cousins filters. Clusters' linear radii were determined from the stellar density radial profiles. Using theoretical isochrones; we derived ages and metallicities from extracted color-magnitude diagrams; previously cleaned from field star contamination. Whenever possible; we also derived ages using the parameter and estimated metallicities from the Standard Giant Branch procedure. We find that the two methods for both age and metallicitiy determination are in good agreement with each other. Since none of the observed clusters has been previously studied; the present fundamental parameter determinations turn out to be the first ones. Seventeen clusters were found to be intermediate-age clusters (1-2 Gyr); with [Fe/H] values ranging from -0.4 to -0.8. The remaining 24 clusters are aged between 125 and 900 Myr and their metallicities range between 0.0 and -0.4. FULL TEXT IN SPANISH

  19. Parámetros fundamentales de objetos catalogados como cúmulos estelares en la Nube Mayor de Magallanes

    NASA Astrophysics Data System (ADS)

    Piatti, A. E.

    We present the results of 16 Large Magellanic Cloud (LMC) clusters ob- tained for the first time from CCD Washington CT1 T2 photometry. CMD cluster features turn out to be identifiable when performing annular extrac- tions around their respective centres, once they were cleaned from field star contamination; their main sequences extending from one up to four mag- nitudes downwards. The clusters resulted to be small angular size objects projected or immersed in dense star fields, as judged from their radial stellar density profiles, so that crowding effect could be responsible for the limited magnitude reached in some cases. We estimated their ages from isochrone fitting - along with the E(B - V ) colour excesses - assuming a metallicity of Z = 0.008 ([Fe/H] = -0.4 dex) and a LMC distance modulus of (m - M)o = 18.50 ± 0.10 mag. FULL TEXT IN SPANISH

  20. Effects of the El Mayor Cucapah April 4, 2010 earthquake and water management decisions on the Colorado River Delta tidal inundation patterns: implications for shorebirds habitat availability

    NASA Astrophysics Data System (ADS)

    Gomez-Sapiens, M.; Flessa, K. W.; Glenn, E. P.; Nelson, S. M.

    2010-12-01

    The Upper Gulf of California and Colorado River Delta (CRD) provide feeding and resting areas for migratory and resident shorebirds. Coastal and inland wetlands create a variety of habitats that support 31 shorebird species. Total shorebirds during the winter and spring migration ranges from 56,156 to 195,073. The Cienega de Santa Clara is an artificial wetland that receives saline water inflows from the United States, and the southeastern portion (the Santa Clara Slough) receives a mix of brackish effluent from the Cienega and occasional tidal inundation during extreme high tides. This transitional wetland between the sea and the land is one of the main shorebird aggregation areas within the CRD, supporting 29 to 75% of the individuals using the entire Upper Gulf and CRD. The Cienega de Santa Clara is currently experiencing a 30% reduction in inflows due to operation of the Yuma Desalting Plant in the United States. The 2010 Baja California earthquake caused changes in the tidal water inflows patterns in the delta. Time sequence Landsat images and aerial observations showed that a new wetland area has been created since tidal water inflows are now diverted from the southeast edge of the Cienega to the southwest areas due to subsidence effects. The aim of this study was to document the changes in the shorebird inland habitats to predict shifts in shorebird habitat use by using aerial and ground surveys before and after the earthquake. Preliminary results shows that some of the areas with a high density of shorebird use has dried out mainly as a consequence of the reduction in water inflows to the Cienega from the United States and diversion of water from the Santa Clara Slough to the new tidal basins northwest of the Slough. Aerial surveys suggest that shorebirds were not yet visiting the new wetland area during the past spring migration and were more abundant over the San Felipe coastline and Montague Island. Shorebird habitat has been influenced by a combination of water management decisions, tidal dynamics, and landform changes due to the recent seismic event in the CRD. Further monitoring is needed to determine if shorebirds will relocate to new habitat or diminish in numbers in this important ecosystem.

  1. Bringing a Public Voice to the School Governance Debate: The Campaign for Better Schools and Mayoral Control in New York City. Executive Summary

    ERIC Educational Resources Information Center

    Research for Action, 2010

    2010-01-01

    Since 1995, the Donors' Education Collaborative (DEC) has supported a range of groups--advocacy, organizing, research and policy groups--that advocate for, or have members from, diverse constituencies concerned about public education in New York City (NYC). DEC has also encouraged collaborations among these types of groups to leverage their…

  2. Geology and preliminary dating of the hominid-bearing sedimentary fill of the Sima de los Huesos Chamber, Cueva Mayor of the Sierra de Atapuerca, Burgos, Spain

    USGS Publications Warehouse

    Bischoff, J.L.; Fitzpatrick, J.A.; Leon, L.; Arsuaga, J.L.; Falgueres, Christophe; Bahain, J.-J.; Bullen, T.

    1997-01-01

    Sediments of the Sima de los Huesos vary greatly over distances of a few meters. This is typical of interior cave facies, and caused by cycles of cut and fill. Mud breccias containing human bones, grading upwards to mud containing bear bones, fill an irregular surface cut into basal marls and sands. The lack of bedding and the chaotic abundance of fragile speleothem clasts in the fossiliferous muds suggests that the deposit was originally a subterranean pond facies, and that after emplacement of the human remains, underwent vigorous post-depositional rotation and collapse and brecciation, caused by underlying bedrock dissolution and undermining. The fossiliferous deposits are capped by flowstone and guano-bearing muds which lack large-mammal fossils. U-series and radiocarbon dating indicates the capping flowstones formed from about 68 ka to about 25 ka. U-series analyses of speleothem clasts among the human fossils indicate that all are at, or close to, isotopic equilibrium (>350 ka). The distribution of U-series dates for 25 bear bones (154??66ka) and for 16 human bones (148??34 ka) is similar and rather broad. Because the human bones seem to be stratigraphically older than those of the bears, the results would indicate that most of the bones have been accumulating uranium irregularly with time. Electron spin resonance (ESR) analyses of six selected bear bones indicates dates of 189??28 ka, for which each is concordant with their corresponding U-series date (181??41 ka). Combined ESR and U-series dates for these samples yielded 200??4 ka. Such agreement is highly suggestive that uranium uptake in these bones was close to the early-uptake (EU) model, and the dates are essentially correct. Another three selected samples yielded combined ESR-U-series dates of 320??4 ka with a modeled intermediate-mode of uranium uptake. The dating results, therefore, seem to provide a firm minimum age of about 200 ka for the human entry; and suggestive evidence of entry before 320 ka. ?? 1997 Academic Press Limited.

  3. Ajuste de espectros integrados de cúmulos estelares de la Nube Mayor de Magallanes mediante el código Starlight

    NASA Astrophysics Data System (ADS)

    Minniti, J. H.; Vega, L. R.; Ahumada, A. V.; Clariá, J. J.

    2015-08-01

    The fit of synthetic spectra has proved to be a powerful tool for determining astrophysical parameters of stellar clusters (SCs). Such methodology is particularly useful to treat integrated spectra of extragalactic SCs. In this work, we present the results obtained by applying this technique to a sample of SCs belonging to the Large Magellanic Cloud (LMC) observed from CASLEO, and using the starlight code. The fitting of the data was performed by means of evolutive--synthesis models of simple--stellar populations of different ages and metallicities, based on the MILESM stellar libraries. The integrated spectra of 34 SCs of the LMC were fitted in order to obtain the age and metallicity of each object. This study also presents a comparison between the properties derived from those fittings and the method of confrontation of our observations with spectral templates of well known ages.

  4. Geology and preliminary dating of the hominid-bearing sedimentary fill of the Sima de los Huesos Chamber, Cueva Mayor of the Sierra de Atapuerca, Burgos, Spain.

    PubMed

    Bischoff, J L; Fitzpatrick, J A; León, L; Arsuagà, J L; Falgueres, C; Bahain, J J; Bullen, T

    1997-01-01

    Sediments of the Sima de los Huesos vary greatly over distances of a few meters. This is typical of interior cave facies, and caused by cycles of cut and fill. Mud breccias containing human bones, grading upwards to mud containing bear bones, fill an irregular surface cut into basal marks and sands. The lack of Bedding and the chaotic abundance of fragile speleothem clasts in the fossiliferous muds suggests that the deposit was originally a subterranean pond facies, and that after emplacement of the human remains, underwent vigorous post-depositional rotation and collapse and brecciation, caused by underlying bedrock dissolution and undermining. The fossiliferous deposits are capped by flowstone and guano-bearing muds which lack large-mammal fossils. U-series and radiocarbon dating indicates the capping flowstones formed from about 68 ka to about 25 ka. U-series analyses of speleothem clasts among the human fossils indicate that all are at, or close to, isotopic equilibrium (> 350 ka). The distribution of U-series dates for 25 bear bones (154 +/- 66 ka) and for 16 human bones (148 +/- 34 ka) is similar and rather broad. Because the human bones seem to be stratigraphically older than chose of the bears, the results would indicate that most of the bones have been accumulating uranium irregularly with time. Electron spin resonance (ESR) analyses of six selected bear bones indicates dates of 189 +/- 28 ka, for which each is cordant with their corresponding U-series date (181 +/- 41 ka). Combined ESR and U-series dates for these samples yielded 200 +/- 4 ka. Such agreement is highly suggestive that uranium uptake in these bones was close to the early-uptake (EU) model, and the dates are essentially correct. Another three selected samples yielded combined ESR U-series dates of 320 +/- 4 ka with a modeled intermediate-mode of uranium uptake. The dating results, therefore, seem to provide a firm minimum age of about 200 ka for the human entry: and suggestive evidence of entry before 320 ka. PMID:9300339

  5. Report of the Citizens Task Force for the Library to the Mayor and the City Council of the City of Saint Paul.

    ERIC Educational Resources Information Center

    Saint Paul Citizens Task Force for the Library, Minn.

    This report by the City of Saint Paul's Citizens Task Force for the Library presents a documented written program of recommendations for growth and change for the next five years based on the results of three sub-studies: (1) a 'Community Analysis,' an in-depth study of the library-related needs of the Saint Paul community; (2) a self-study of the…

  6. Grassroots Action Research and the Greater Good (La investigación acción de base y el bien mayor)

    ERIC Educational Resources Information Center

    Rainey, Isobel

    2011-01-01

    This study examines the action research topics and topic preferences of two groups of grassroots teachers: active researchers, and potential researchers. The analysis of the topics appears to indicate that, over the past decade, action research at the teaching of English at the grassroots level to speakers of other languages has been principally…

  7. Mock Press Conference with San Diego Deputy Mayor Jady McCarty: A Visual Communication "Event" Created for News Writing Students.

    ERIC Educational Resources Information Center

    Sneed, Don; Wulfemeyer, K. Tim

    A videotape program was designed for use in news writing classes to provide journalism students with exposure to and experience in covering press conferences. The mock press conference format was selected because an analysis of journalism textbooks revealed little attention to this topic, and it was decided that an elected public official from the…

  8. Nivel de Actividad Física, Autoeficacia, Beneficios y Barreras Percibidas en Mujeres Mayores Mexicanas Independientes (Physical Activity Level, Exercise Self-Efficacy, Benefits and Perceived Barriers of Independent Mexican Older Women).

    PubMed

    Enríquez-Reyna, María Cristina; Cruz-Castruita, Rosa María; Zamarripa, Jorge; Ceballos-Gurrola, Oswaldo; Guevara-Valtier, Milton Carlos

    2016-03-01

    This descriptive comparative study examined differences in personal characteristics, exercise self-efficacy, benefits and barriers of independent elderly women to perform physical activity (PA) according with the PA level. Two hundred three women older than 60 years of age, from a community located in Nuevo Leon, Mexico participated in the study. Data was collected using: a) A personal data questionnaire, b) Exercise Self-Efficacy Scale, c) Exercise Benefits/ Barriers Scale and d) Physical Activity Scale for the Elderly were completed. Age was similar in participants with low and acceptable PA level. Participants with lower levels of PA reported consuming more medications, fewer years of education and lower values of exercise self-efficacy, benefits and barriers. In this sample, exercise self-efficacy and benefits were positively associated with the PA level. PMID:27257188

  9. What Works Clearinghouse Quick Review: "Meeting the Challenge of Combating Chronic Absenteeism: Impact of the NYC Mayor's Interagency Task Force on Chronic Absenteeism and School Attendance and Its Implications for Other Cities"

    ERIC Educational Resources Information Center

    What Works Clearinghouse, 2013

    2013-01-01

    This study examined the effectiveness of an intervention designed to reduce rates of chronic student absenteeism in New York City public schools. The study authors reported that schools participating in the intervention experienced greater reductions in rates of student chronic absenteeism than the comparison schools. Students who attended the…

  10. Parámetros astrofísicos fundamentales de 6 cúmulos de la Nube Mayor de Magallanes en el rango de transición entre 200 y 700 millones de años

    NASA Astrophysics Data System (ADS)

    Piatti, A. E.; Bica, E.; Geisler, D.; Clariá, J. J.

    Complementing our recent Washington photometric studies on intermediate age and young Large Magellanic Cloud (LMC) clusters, we present in this work new results for 6 previously unstudied star clusters in the transition range 200-700 Myr. We study NGC 1836, NGC 1860 and NGC 1865, which are projected on the LMC bar; SL 444, also located in the central disc but outside the bar, and LW 224 and SL 548, both located in the outer disc. We derive ages and metallicities from extracted T1 versus C-T1 colour-magnitude diagrams (CMDs), using theoretical isochrones recently computed for the Washington system. For the metallicity determinations, these CMDs are particularly sensitive. We also estimate ages and metallicities of the surrounding fields of NGC 1860 and NGC 1865 by employing the δT1 index and theoretical isochrones.

  11. Year Two Report on the Campaign for Better Schools: Outcomes of the Mayoral Control Debate--Changes to NYC Governance Legislation and Long-Term Effects, May 2009-May 2010

    ERIC Educational Resources Information Center

    Gold, Eva; Simon, Elaine; Good, Deborah; Gottschalk, Jesse; Henig, Jeffrey; Silander, Megan

    2010-01-01

    Since 1995, the Donors' Education Collaborative (DEC) has supported a range of groups--advocacy, organizing, research and policy groups--who advocate for, or whose members come from, diverse constituencies concerned about public education in New York City (NYC). DEC has also encouraged collaborations among these types of groups to leverage their…

  12. S.Res.365 — 112th Congress (2011-2012) A resolution honoring the life of Kevin Hagan White, the Mayor of Boston, Massachusetts from 1968 to 1984.

    THOMAS, 112th Congress

    Sen. Kerry, John F. [D-MA

    2012-02-01

    02/01/2012 Submitted in the Senate, considered, and agreed to without amendment and with a preamble by Unanimous Consent. (consideration: CR S276-277; text as passed Senate: CR S277; text of measure as introduced: CR S265) (All Actions)

  13. [Not Available].

    PubMed

    Fehrman-Rosas, Pamela; Delgado-Sánchez, Claudia; Fuentes-Fuentes, Jessica; Hidalgo-Fernández, Andrea; Quintana-Muñoz, Carol; Yunge-Hidalgo, Wilma; Fernández-Godoy, Eloina; Durán-Agüero, Samuel

    2016-01-01

    Objetivo: asociar patrones alimentarios con la autopercepción del estado nutricional en estudiantes universitarios chilenos de Nutrición y Dietética.Material y métodos: estudio transversal en el que se evaluó a 634 estudiantes de Nutrición y Dietética, de los cuales un 86,4% eran mujeres. A cada alumno se le mostraron siete modelos anatómicos correspondientes a valores de índice de masa corporal (IMC) de 18, 22, 25, 27, 30, 35 y 40 kg/m2. Cada estudiante debía elegir el modelo con el que mejor se identificaba. Posteriormente, se realizó la evaluación antropométrica, se calculó el IMC real comparándolo posteriormente con el IMC percibido, y finalmente se le aplicó una encuesta alimentaria.Resultados: se observa que los sujetos que sobreestiman su peso presentan un menor porcentaje de cumplimiento en el consumo de frutas y verduras al día; en cambio, el mayor porcentaje de sujetos que sigue las recomendaciones se encuentra en el grupo que se ve igual. Hay unaasociación entre una buena percepción de la imagen corporal y el consumo de 3 o más porciones de frutas al día OR = 0,554 (IC 95%; 0,360-0,852), 2 o más porciones de verduras al día OR = 0,438 (IC 95%; 0,283-0,678) y un consumo de alcohol menor de una vez a la semanaOR = 0,451 (IC 95%; 0,270-0,752).Conclusión: los estudiantes que registran una ingesta adecuada de verduras y frutas autodefinen su alimentación como saludable e ideal y tienden a autopercibirse coherentemente en relación con su estado nutricional; además, estos sujetos son los que presentan una ingesta menor de alimentos poco saludables. PMID:27444473

  14. [Not Available].

    PubMed

    Fehrman-Rosas, Pamela; Delgado-Sánchez, Claudia; Fuentes-Fuentes, Jessica; Hidalgo-Fernández, Andrea; Quintana-Muñoz, Carol; Yunge-Hidalgo, Wilma; Fernández-Godoy, Eloina; Durán-Agüero, Samuel

    2016-01-01

    Objetivo: asociar patrones alimentarios con la autopercepción del estado nutricional en estudiantes universitarios chilenos de Nutrición y Dietética.Material y métodos: estudio transversal en el que se evaluó a 634 estudiantes de Nutrición y Dietética, de los cuales un 86,4% eran mujeres. A cada alumno se le mostraron siete modelos anatómicos correspondientes a valores de índice de masa corporal (IMC) de 18, 22, 25, 27, 30, 35 y 40 kg/m2. Cada estudiante debía elegir el modelo con el que mejor se identificaba. Posteriormente, se realizó la evaluación antropométrica, se calculó el IMC real comparándolo posteriormente con el IMC percibido, y finalmente se le aplicó una encuesta alimentaria.Resultados: se observa que los sujetos que sobreestiman su peso presentan un menor porcentaje de cumplimiento en el consumo de frutas y verduras al día; en cambio, el mayor porcentaje de sujetos que sigue las recomendaciones se encuentra en el grupo que se ve igual. Hay unaasociación entre una buena percepción de la imagen corporal y el consumo de 3 o más porciones de frutas al día OR = 0,554 (IC 95%; 0,360-0,852), 2 o más porciones de verduras al día OR = 0,438 (IC 95%; 0,283-0,678) y un consumo de alcohol menor de una vez a la semanaOR = 0,451 (IC 95%; 0,270-0,752).Conclusión: los estudiantes que registran una ingesta adecuada de verduras y frutas autodefinen su alimentación como saludable e ideal y tienden a autopercibirse coherentemente en relación con su estado nutricional; además, estos sujetos son los que presentan una ingesta menor de alimentos poco saludables. PMID:27513501

  15. 75 FR 67965 - Announcement of Local Government Advisory Committee Members

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-04

    ... (Small Cities and Towns) Bob Dixson, Mayor, Greensburg, Kansas. Marilyn Murrell, Mayor, Arcadia, Oklahoma... Mary Margaret Whipple, State Senator, Commonwealth of Virginia. Chris Ross, State Representative...

  16. To direct the Mayor of the District of Columbia to establish a District of Columbia National Guard Educational Assistance Program to encourage the enlistment and retention of persons in the District of Columbia National Guard by providing financial assistance to enable members of the National Guard of the District of Columbia to attend undergraduate, vocational, or technical courses.

    THOMAS, 112th Congress

    Rep. Norton, Eleanor Holmes [D-DC-At Large

    2011-03-17

    04/01/2011 Referred to the Subcommittee on Health Care, District of Columbia, Census and the National Archives. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  17. [In Process Citation].

    PubMed

    Durán Agüero, Samuel; Herrera Valenzuela, Tomás; Poblete Aro, Carlos; Durán Acevedo, Angelo; Valdés Badilla, Pablo

    2016-01-01

    Objetivo: determinar los patrones alimentarios de ultramaratonistas chilenos. Métodos: estudio descriptivo transversal, con enfoque cuantitativo. La muestra incluyó 20 ultramaratonistas (n = 3 mujeres), quienes promediaban para la edad 33,0 ± 7,8 años, peso 71,1 ± 6,6 kg y estatura 1,72 ± 0,05 m. Se aplicó una encuesta de hábitos alimentarios validada y un punto de significación de p < 0,05. Resultados: los ultramaratonistas chilenos presentan bajo consumo de alimentos de acuerdo a las porciones recomendadas de frutas, verduras, pescado y leguminosas, y el 75% de ellos consume desayuno diariamente. Se observa ingestas moderadas de bebidas azucaradas, snacks dulces y alcohol, mientras que la ingesta de frituras (65%) corresponde al hábito no saludable más frecuente. Conclusión: los ultramaratonistas chilenos presentan un bajo cumplimiento en las porciones recomendadas de alimentos, pese al gran esfuerzo físico que realizan. PMID:27238804

  18. Estudio epidemiológico de sucesos traumáticos, trastorno de estrés post-traumático y otros trastornos psiquiátricos en una muestra representativa de Chile

    PubMed Central

    Pérez Benítez, Carlos I.; Vicente, Benjamin; Zlotnick, Caron; Kohn, Robert; Johnson, Jennifer; Valdivia, Sandra; Rioseco, Pedro

    2010-01-01

    RESUMEN Durante la década de 1990 en los Estados Unidos (EU), el conocimiento sobre el trastorno de estrés post-traumático (TEPT) evolucionó de estudios específicos en un principio, sobre veteranos de guerra y sobre víctimas de desastres, a estudios epidemiológicos más tarde, sin embargo, la epidemiología del TEPT en países en desarrollo ha sido un área poco estudiada hasta ahora. Los expertos en el área de trauma han propuesto que los sucesos traumáticos que ocurren en la niñez son más perjudiciales para la salud mental que aquellos que ocurren más tarde en la vida. Este trabajo revisa los resultados de un estudio epidemiológico llevado a cabo en Chile. Específicamente, se revisan los resultados sobre las tasas de prevalencia del TEPT, traumas asociados más frecuentemente con él, así como la comorbilidad de este trastorno con otros trastornos psiquiátricos a lo largo de la vida. Igualmente se analizaron las diferencias del TEPT en cada sexo, así como la exposición a traumas en una muestra representativa de chilenos. Además se comparó la prevalencia de trastornos psiquiátricos en personas que sufrieron su primer trauma durante la niñez, durante la edad adulta, o que no reportaron traumas durante su vida. En estos estudios epidemiológicos se usaron módulos del TEPT y trastorno de personalidad antisocial (TPA) de la entrevista diagnóstica siguiendo los criterios del DSM-III-R (DIS–III-R). Para evaluar el resto de los trastornos psiquiátricos se usó la Entrevista Diagnóstica Internacional Compuesta (CIDI). Estos instrumentos fueron administrados en tres ciudades chilenas a 2390 personas mayores de 15 años. Para estimar los errores estándares (EE) debido al diseño de la muestra y a la necesidad de ajuste se usó el método Taylor de linearización seriada. También se usó un análisis de regresión logística para examinar la relación entre el TEPT, los factores demográficos de riesgo y el tipo de trauma. Además se utilizó la

  19. News Room | mayormb

    Science.gov Websites

    Sunday, June 5, 2016 06022016 Mayor Bowser Public Calendar for Friday, June 3, 2016 06022016 Mayor Bowser Announces Plan to Help District Residents During SafeTrack 06022016 ...

  20. 78 FR 52943 - Changes in Flood Hazard Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-27

    ... Honorable Mike Engineering http:// October 18, 2013..... 010104 04-8239P). Schmitz, Mayor, Department, 126...:// September 27, 2013... 010104 04-3332P). Schmitz, Mayor, Department, 126 www.bakeraecom.com/ City of...

  1. Taking Charge of Choice: How Charter School Policy Contexts Matter. Research Brief

    ERIC Educational Resources Information Center

    Smrekar, Claire

    2011-01-01

    Against the backdrop of urban school politics, in which mayors play increasingly powerful and pivotal roles, the current study examines the origins and implications of mayoral control of charter school authorization and accountability in Indianapolis (see Henig & Rich, 2004; Wong & Shen, 2007). In contrast to analyses of mayoral takeovers of urban…

  2. 77 FR 59955 - Changes in Flood Hazard Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-01

    ...- Michael B. Public Works, 201 www.bakeraecom.com/ 0237P). Hancock, Mayor, West Colfax index.php/colorado..., Main Street, www.bakeraecom.com/ Mayor, City of Columbia, SC index.php/ Columbia, 1737 29201......... 080002 08-0046P). Steve Hogan Department, 15151 www.bakeraecom.com/ Mayor, City of East Alameda...

  3. Addressing Barriers to Learning. Volume 12, Number 1. Winter 2007

    ERIC Educational Resources Information Center

    Center for Mental Health in Schools at UCLA, 2007

    2007-01-01

    Considerable controversy surrounds discussion of a mayor's role in public education. From a policy perspective, however, it is essential that every mayor help improve schools. This issue of the quarterly newsletter of the Center for Mental Health in Schools includes the following features and regular segments: (1) Open letter to the Mayor--A…

  4. "One of the Most Uniform Races of the Entire World": Creole Eugenics and the Myth of Chilean Racial Homogeneity.

    PubMed

    Walsh, Sarah

    2015-11-01

    This article illuminates why Nicolás Palacios's 1904 monograph, Raza chilena: Libro escrito por un Chileno i para los Chilenos [Chilean Race: A Book Written by a Chilean for Chileans], is central to the creation of a myth of Chilean racial homogeneity at the turn of the twentieth century. Placing Palacios in the context of Latin American eugenic discourse, it demonstrates how he selected a specific racial origin story in order to accommodate his belief in racial hierarchy while also depicting race mixing in a positive light. Specifically, the article highlights how the myth of Chilean racial homogeneity elided the difference between the term "mestizo," which was applied to people of mixed racial heritage, and "white." I contend that Palacios sought to differentiate Chileans from other Latin Americans by emphasizing their racial distinctiveness. The article therefore highlights that Latin American eugenics was concerned with the creation of national narratives that historicized particular racial mixtures in order to reify and affirm national differences. As such, it connects to literature regarding the history of eugenics, race, nation, and the creation of whiteness. PMID:25733067

  5. WNYC: 1922-1940-- The Early History of a Twentieth-Century Urban Service.

    ERIC Educational Resources Information Center

    Luscombe, Irving Foulds

    Station WNYC, New York, began operation in 1924 as a means of improving police and fire department services and raising the educational and cultural level of the citizenry. However, Mayor Hylan tried to use WNYC for personal political purposes; and until 1933, under Mayors Walker, McKee, and O'Brien, the station was handicapped by the Hylan…

  6. More Carrots than Sticks: Antanas Mockus's Civic Culture Policy in Bogota

    ERIC Educational Resources Information Center

    Buendia, Felipe Cala

    2010-01-01

    The son of a Lithuanian artist, Antanas Mockus was the president of the National University in Colombia before he became mayor of Bogota in 1995. As mayor, he transformed the city into a huge classroom, not only bringing to his administration a new view of governing but also transforming the way people exercised their citizenship. Mockus resorted…

  7. Institutions and Organizational Change: Reforming New York City's Public School System

    ERIC Educational Resources Information Center

    Traver, Amy

    2006-01-01

    This paper reviews New York City Mayor Michael Bloomberg's education reform agenda, "Children first", in the light of organizational theory. I argue that this reform agenda reflects both coercive and mimetic isomorphism, as Bloomberg uses mayoral control to apply business concepts and practices to New York City's public school system. Through…

  8. 77 FR 47084 - Changes in Flood Hazard Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-07

    ... Minnet, Ocean Drive, www.bakeraecom.com/ 0897P). Mayor, Town of Lauderdale b index.php/florida........... 010071 04-2355P) Howard Shell, East Louisville www.bakeraecom.com/ Mayor, City of Avenue, Atmore, index... Escambia David M. Stokes, 314 Belleville www.bakeraecom.com/ County (12-04- Chairman, Avenue,...

  9. 76 FR 52879 - Changes in Flood Elevation Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-24

    ...). November 13, 2009; Terrell, Mayor, City of The McKinney Allen, 305 Century Courier-Gazette. Parkway, Allen...Kinney, 222 North Courier-Gazette. Tennessee Street, P.O. Box 517, McKinney, TX 75069. Collin (FEMA...-0322P). February 11, 2010; Loughmiller, Mayor, City The McKinney of McKinney, 222 North...

  10. Children, Kitchen and Computer: Women--Torn between Family and Job. Developments in the Federal Republic of Germany. Social Report.

    ERIC Educational Resources Information Center

    Kischke, Martina I.

    Focusing on the changing roles and consciousness of women currently living in the Federal Republic of Germany, this report is organized under seven topical headings. The first section, "Women and Politics," comments on the increasing influence of women in local politics, with 36 women currently occupying the posts of Lord Mayor, Mayor, Senior Town…

  11. Is Demography Still Destiny? Neighborhood Demographics and Public High School Students' Readiness for College in New York City. A Research and Policy Brief

    ERIC Educational Resources Information Center

    Fruchter, Norm; Hester, Megan; Mokhtar, Christina; Shahn, Zach

    2012-01-01

    Over the past decade, Mayor Michael Bloomberg has reorganized the New York City school system using principles and strategies extrapolated from his corporate sector experience. The mayor and his administration have restructured the public school system into a portfolio district centered on choice, autonomy, and accountability. These strategies…

  12. Federal Food Programs-1975. Hearings before the Select Committee on Nutrition and Human Needs of the United States Senate, Ninety-Fourth Congress, First Session. Part 8--Administrative Failure of Food Stamp Program. Hearings held Detroit, Michigan, Februrary 6, 1975.

    ERIC Educational Resources Information Center

    Congress of the U.S., Washington, DC. Senate Select Committee on Nutrition and Human Needs.

    These hearings before the Senate Select Committee on Nutrition and Human Needs focused on the Food Stamp Programs problems in Detroit, Michigan. Testimony was heard from such witnesses as the following: Coleman Young, Mayor of the City of Detroit; Eleanor Josatis, Chairwoman; Mayor-Common Council's Task Force on Hunger and Malnutrition; Muriel…

  13. Fwd: Opportunities Lost--How New York City Got Derailed on the Way to School Reform. Volume: I, Number: 3. Arresting Insights in Education

    ERIC Educational Resources Information Center

    Stern, Sol

    2004-01-01

    Mayor Michael Bloomberg gave his first hint about his plans for reforming the New York City school system on Martin Luther King Day in January 2003. Mayor Bloomberg did not offer a single excuse for the disastrous state of the city's schools. Nor did he attribute that failure to poverty or racism. Breaking with 50 years of liberal political…

  14. New York City's Education Battles

    ERIC Educational Resources Information Center

    Meyer, Peter

    2008-01-01

    When Bloomberg gave his first State of the City address, in January, 2002, he announced his intention to seek mayoral control of the schools and abolish the infamous New York City Board of Education, which he called "a rinky-dink candy store." He joined a long list of New York mayors, educators, and business leaders who believed that the city's…

  15. A Status Report on Hunger and Homelessness in America's Cities: 1990. A 30-City Survey.

    ERIC Educational Resources Information Center

    Waxman, Laura DeKoven; Reyes, Lilia M.

    To assess the status of hunger and homelessness in urban America during 1990, the U.S. Conference of Mayors surveyed the 30 major cities whose mayors are members of its Task Force on Hunger and Homelessness. This report summarizes survey findings. The survey sought information from each city on the following questions: (1) the demand for emergency…

  16. A Status Report on Hunger and Homelessness in America's Cities: 1991. A 28-City Survey.

    ERIC Educational Resources Information Center

    Waxman, Laura DeKoven

    To assess the status of hunger and homelessness in urban America during 1991, The U.S. Conference of Mayors surveyed 28 major cities whose mayors are members of its Task Force on Hunger and Homelessness. The survey sought information and estimates from each city on: (1) the demand for emergency food assistance and emergency shelter and the…

  17. Schools for Cities: Urban Strategies. NEA Series on Design.

    ERIC Educational Resources Information Center

    Haar, Sharon, Ed.

    This monograph presents papers from the 2000 Mayors' Institute on City Design and the public forum that followed it. Essays include: "Schools for Cities: Urban Strategies" (Sharon Haar); "Reenvisioning Schools; The Mayors' Questions" (Leah Ray); "Why Johnny Can't Walk to School" (Constance E. Beaumont); "Lessons from the Chicago Public Schools…

  18. A Status Report on Hunger and Homelessness in America's Cities, 2000: A 25-City Survey.

    ERIC Educational Resources Information Center

    Lowe, Eugene T.

    To assess the status of hunger and homelessness in U.S. cities during the year 2000, the U.S. Conference of Mayors surveyed 25 major cities whose mayors were members of its Task Force on Hunger and Homelessness. The survey sought information and estimates from each city on emergency food supplies and services, the causes of hunger and…

  19. The Youth Preservation League

    ERIC Educational Resources Information Center

    Morris, Ronald Vaughan

    2008-01-01

    In the town of Madison, Indiana, the Mayor's Office started an initiative in 2000 called the Mayor's Eagles in partnership with Edward Eagleston Elementary School, known locally as the Eagles, using the historical expertise of Historic Madison, Inc., and the resources of the Madison Public Library. Through this program staff of Historic Madison,…

  20. Bloomberg's Way

    ERIC Educational Resources Information Center

    Samuels, Christina A.

    2009-01-01

    The nation's largest school district is engaged in a fierce debate over the merits and drawbacks of mayoral control as a legislative deadline looms for renewing the governance arrangement. The 2002 law that gave New York City's mayor authority over the school system will "sunset" on June 30 unless state lawmakers step in, as they are widely…

  1. Bias-Based Harassment in New York City Public Schools: A Report Card on the Department of Education's Implementation of Chancellor's Regulation A-832

    ERIC Educational Resources Information Center

    Asian American Legal Defense and Education Fund, 2009

    2009-01-01

    On September 3, 2008, Mayor Michael Bloomberg and Schools Chancellor Joel Klein announced Chancellor's Regulation A-832, which established a procedure for addressing student-to-student bias-based harassment, intimidation, and bullying. Community groups and advocates stood with the Mayor and Department of Education (DOE) leadership in announcing…

  2. 78 FR 20935 - Changes in Flood Hazard Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-08

    .... Mayor, Monroe County, Building (12-04-5100P)........ Marathon Airport Department, 2798 Terminal, 9400 Overseas Overseas Highway, Highway, Suite 210, Suite 330, Marathon, FL 33050. Marathon, FL 33050. Monroe... 125129 1286). of Monroe County. Mayor, Monroe County, Building (12-04-6679P)........ Marathon...

  3. 78 FR 57645 - Changes in Flood Hazard Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-19

    ..., PA of Supervisors, 16403. 29393 Miller Station Road, Cambridge Springs, PA 16403. Texas: Bexar City... Castro, Public Works, www.msc.fema.gov/ 3120P). Mayor, City of Storm Water lomc. San Antonio, Engineering...- Julian Castro, Public Works, www.msc.fema.gov/ 0091P). Mayor, City of Storm Water lomc. San...

  4. 78 FR 72914 - Changes in Flood Hazard Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-04

    ... 16801. Texas: Bexar City of San The Honorable Department of http:// December 19, 2013......... 480045 Antonio (13-06- Julian Castro, Public Works, www.msc.fema.gov/ 3092P). Mayor, City of Storm Water lomc............ 480045 Antonio (13-06- Julian Castro, Public Works, www.msc.fema.gov/ 3094P). Mayor, City of Storm...

  5. The Critical Task of Hiring a New Chief

    ERIC Educational Resources Information Center

    Oishi, Lindsay

    2012-01-01

    For most of the more than 14,000 districts nationwide, the critical task of hiring a new chief executive is entrusted to the school board. There are a few exceptions, such as when there are mayoral takeovers of districts and the mayor appoints a CEO. As board members rarely have the requisite experience or time to search, they often turn to…

  6. Palace Revolt in Los Angeles?

    ERIC Educational Resources Information Center

    Fuller, Bruce

    2010-01-01

    Antonio Villaraigosa, the mayor of Los Angeles, comes alive when recalling his start in local politics--as a labor organizer agitating for reform inside decrepit and overcrowded schools. In his quest to turn around the schools, the mayor has united working-class Latino parents, civil rights leaders, and big-money Democrats to challenge union…

  7. On the Positive Side: Bloomberg and Klein Seek to Repair a Failure Factory

    ERIC Educational Resources Information Center

    Williams, Joe

    2005-01-01

    The history books will show that New York City mayor Michael Bloomberg seized control of the city's sprawling public school bureaucracy and its 1.1 million students on July 1, 2002. But it was 18 months later when New Yorkers got their first real taste of what mayoral control and accountability were supposed to be about: when reports of escalating…

  8. Bullying in New York City Schools: Educators Speak out, 2009-2010

    ERIC Educational Resources Information Center

    Asian American Legal Defense and Education Fund, 2010

    2010-01-01

    On September 3, 2008, Mayor Michael Bloomberg and Schools Chancellor Joel Klein announced Chancellor's Regulation A-832, which established a procedure for preventing and addressing student-to-student bias-based harassment in New York City public schools. Community members and advocates stood with the mayor and chancellor as they announced this…

  9. Overactive Thyroid: What You Need to Know

    MedlinePlus

    ... de peso • cambios de humor • bocio, que es un agrandamiento de la tiroides que puede hacer que ... Ciertos factores pueden aumentar sus probabilidades de tener un problema de la tiroides. Usted tiene mayor riesgo ...

  10. Bladder Control: What Men Need to Know

    MedlinePlus

    ... fuerte urgencia de orinar. • El escape puede ser un goteo constante. Los hombres con este problema por ... hombres mayores, puede oprimir la uretra y producir un chorro de orina débil, una necesidad urgente de ...

  11. 3. photocopy of lithograph by A. Hoen & Co.,1877,City Hall,Baltimore ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. photocopy of lithograph by A. Hoen & Co.,1877,City Hall,Baltimore printed by authority of the mayor and city council,1877,showing plan of first floor - Baltimore City Hall, Holliday Street, Baltimore, Independent City, MD

  12. 4. photocopy of lithograph by A. Hoen & Co.,1877,City Hall,Baltimore ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. photocopy of lithograph by A. Hoen & Co.,1877,City Hall,Baltimore printed by authority of the mayor and city council,1877,showing section on line C-D - Baltimore City Hall, Holliday Street, Baltimore, Independent City, MD

  13. 1. photocopy of print by A. Hoen &Co.,1877, City Hall,Baltimore ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. photocopy of print by A. Hoen &Co.,1877, City Hall,Baltimore printed by authority of the mayor and city council,1877, showing east (main) front and south front - Baltimore City Hall, Holliday Street, Baltimore, Independent City, MD

  14. 2. photocopy of lithograph by A. Hoen & Co.,1877,City Hall,Baltimore ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. photocopy of lithograph by A. Hoen & Co.,1877,City Hall,Baltimore printed by authority of the mayor and city council,1877,showing plan of roof and dome - Baltimore City Hall, Holliday Street, Baltimore, Independent City, MD

  15. 78 FR 10195 - Changes in Flood Hazard Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-13

    .... Soglin, Works and team.com/starr/LOMR/ Mayor, City of Transportation, Pages/RegionV.aspx. Madison, 210 Enginnering Martin Luther Division, 210 Martin King Jr. Luther King Junior Boulevard, Room Boulevard, Room...

  16. So much more than invisibility

    NASA Astrophysics Data System (ADS)

    Major, Louise

    2013-12-01

    The applications of metamaterials - structures that can generate negative refractive indices - have long been overshadowed by the prospect of an invisibility cloak. John Pendry from Imperial College London talks to Louise Mayor about how they could be used in practice.

  17. Apprentices in Trouble: Some Problems in the Training of Surgeons and Apothecaries in Seventeenth Century London

    PubMed Central

    Forbes, Thomas R.

    1979-01-01

    Mayor's Court interrogatories and depositions in six disputes between apprentices and their surgeon and apothecary masters in London in 1654-1684 are reviewed. Evidence is presented to illustrate aspects of the operation of the apprentice system. PMID:377827

  18. Technology and Higher Education: Report from the Front.

    ERIC Educational Resources Information Center

    Mayor, Mara; And Others

    1987-01-01

    Includes two reports on the current integration of technology in postsecondary education. Mara Mayor and Peter Dirr discuss the relationship between technology and access and quality. Valerie Crane presents study results on how students use and evaluate telecourses compared to on-campus courses. (DMM)

  19. Welcome to the Jungle: The First 100 Days of a Superintendency

    ERIC Educational Resources Information Center

    Stellar, Art

    2011-01-01

    Presidents, governors and mayors are often publicly assessed on what they accomplish in their first 100 days in office. This is a traditional measuring stick for public officials. Starting off on the right foot also is viewed as a factor in how superintendents are remembered or whether there will be sufficient reasons for being remembered at all.…

  20. The Louisiana Recovery School District: Lessons for the Buckeye State

    ERIC Educational Resources Information Center

    Smith, Nelson

    2012-01-01

    Is it time for Ohio to take bolder steps toward turning around its most troubled schools and districts? If so, what might the alternatives look like? Options for rebooting these troubled schools have come in the form of mayoral control, state takeovers, market competition through charter schools and other choice programs, as well as millions of…

  1. Field Hearings on the Youth Service Corps and H.R. 717. Hearings before the Subcommittee on Employment Opportunities of the Committee on Education and Labor. House of Representatives, One Hundred First Congress, First Session (San Francisco, April 28, 1989; Los Angeles, June 23, 1989).

    ERIC Educational Resources Information Center

    Congress of the U.S., Washington, DC. House Committee on Education and Labor.

    This document reports on Congressional hearings on issues relating to the 1989 youth services bill to create a nationwide Youth Service Corps. The hearings focused on the successes of local youth programs. Testimony includes statements and prepared statements, letters, and supplemental materials from the mayors of San Francisco and Los Angeles,…

  2. Fumar relacionado con la mitad de cánceres de vejiga en mujeres

    Cancer.gov

    Los fumadores actuales de cigarrillos tienen un mayor riesgo de padecer cáncer de vejiga que lo que se informó anteriormente, y ahora el riesgo de las mujeres es comparable al riesgo de los hombres, de acuerdo a un estudio llevado a cabo por científicos d

  3. Estudio de NIH señala relación de la TC en la infancia con leucemia y cáncer de cerebro más tarde

    Cancer.gov

    Niños y adultos jóvenes a quienes se les hicieron exploraciones muchas veces con tomografía computarizada (TC), una herramienta de diagnóstico de uso frecuente, tienen un riesgo ligeramente mayor de padecer leucemia y tumores cerebrales en la década poste

  4. Five Who Make a Difference.

    ERIC Educational Resources Information Center

    Marsh, Ellen; Beatty, Mary Lou

    1997-01-01

    Profiles this year's winners of the Charles Frankel Prize, awarded to individuals who have stimulated and expanded public understanding of the humanities. The recipients are Rita Dove (poet), Doris Kearns Goodwin (historian/author), Daniel Kemmis (mayor/author), Arturo Madrid (professor), and Bill Moyers (television producer). (MJP)

  5. Educational Greenfield: A Critical Policy Analysis of Plans to Transform New Orleans Public Schools

    ERIC Educational Resources Information Center

    Torregano, Michelle Early; Shannon, Patrick

    2009-01-01

    New Orleans is known as a unique city. It is the birthplace of jazz, delicious food, and a "gumbo" of warm friendly people. On August 29, 2005, Hurricane Katrina roared ashore, leaving death and destruction in her wake. New Orleans Mayor C. Ray Nagin recognized that rebuilding the city of New Orleans would be a daunting task; one that he believed…

  6. Anti-Gay Violence. Hearing on Anti-Gay Violence before the Subcommittee on Criminal Justice of the Committee on the Judiciary. House of Representatives, Ninety-Ninth Congress, Second Session (October 9, 1986).

    ERIC Educational Resources Information Center

    Congress of the U.S., Washington, DC. House Committee on the Judiciary.

    This document presents witness testimonies and prepared statements from the Congressional hearing called to examine the issue of antigay violence. In his opening statement, Representative John Conyers, Jr. presents statistics which attest to a rise in antigay violence since the murders of San Francisco Mayor George Moscone and City Supervisor…

  7. A First Look at Community Schools in Baltimore

    ERIC Educational Resources Information Center

    Olson, Linda S.

    2014-01-01

    In partnership with the Mayor of Baltimore City and Baltimore City Public Schools (City Schools), Family League of Baltimore (Family League) launched the Community & School Engagement Strategy in school year 2012-13. As part of that process, it intentionally aligned its existing Out of School Time (OST) activities with community schools…

  8. 4. DETAIL OF BUILDER'S PLATES: '1901, CARTER H. HARRISON, COMMISSIONER ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. DETAIL OF BUILDER'S PLATES: '1901, CARTER H. HARRISON, COMMISSIONER OF PUBLIC WORKS, MAYOR F.W. BLOCKI, JOHN ERICSON, CITY ENGINEER'; 'FITZSIMONS AND CONNELL CO. SUBSTRUCTURE'; 'AMERICAN BRIDGE COMPANY, LASSIG PLANT, CONTRACTOR FOR SUPERSTRUCTURE' - Chicago River Bascule Bridge, West Cortland Street, Spanning North Branch of Chicago River at West Cortland Street, Chicago, Cook County, IL

  9. Summary Proceedings: The Conference on Electronic Text for Higher Education (San Diego, California, January 21-23, 1985). Report Number Eight of the Electronic Text Report Series.

    ERIC Educational Resources Information Center

    Appleman, Merrie, Ed.

    This report of the Conference on Electronic Text for Higher Education presents summaries of the principal presentations and discussions at each of eight sessions. Those sessions, with their presenters, include: (1) "Perspective: Electronic Text in Higher Education" (John Witherspoon, Mara Mayor); (2) "Theme and Variations: What Is Electronic…

  10. Arts Education Quality Rubric and the "ArtsCounts" Initiative. IESP Policy Brief No. 01-09

    ERIC Educational Resources Information Center

    Institute for Education and Social Policy, 2009

    2009-01-01

    In 1975, New York City found itself on the verge of bankruptcy, and newly-elected Mayor Abraham Beame was forced to enact massive cuts in the city's budget. Some of the hardest hit programs were arts education classes in the public schools--funding for programs in visual arts, dance, music and theater were slashed from the Board of Education's…

  11. Estudio del NCI revela que la obesidad extrema puede acortar la esperanza de vida hasta en 14 años

    Cancer.gov

    Los adultos con obesidad extrema tienen mayor riesgo de morir a edad más joven por cáncer y muchas otras causas entre ellas, enfermedades cardíacas, accidentes cerebrovasculares, diabetes y enfermedades del hígado y los riñones, según estudio del NCI.

  12. The Impact of CETA on Institutional Vocational Education. Case Studies and Final Report, 1977.

    ERIC Educational Resources Information Center

    Anderson, Robert; Rozansky, Rosa D.

    This final report summarizes the findings of the National League of Cities and U.S. Conference of Mayors concerning CETA funded programs. It also examines three case studies in Chicago; Erie, Pennsylvania; and the Virginia Peninsula. The report discusses the need for cooperation between CETA and the vocational education system. Characteristics of…

  13. Practicing Politics: Female Political Scientists as Candidates for Elective Office

    ERIC Educational Resources Information Center

    Burrell, Barbara

    2012-01-01

    In 2007, University of Oklahoma political science professor Cindy Simon Rosenthal was elected mayor of Norman, Oklahoma, after having served as a member of its city council. Was her activity unique within the political science profession among female political scientists? Her election stimulated the curiosity of some of us in the…

  14. Mater Academy Charter Middle School: Consistent Expectations

    ERIC Educational Resources Information Center

    Principal Leadership, 2010

    2010-01-01

    Mater Academy Charter Middle/High School is located in what was once a big box store in a commercial and industrial area of Hialeah Gardens, FL. The same energy that transformed a vacant store into a thriving campus for a grades 6-12 school is apparent in every classroom. Even the mayor of Hialeah Gardens credits the school with helping to…

  15. Court Documents Related to Martin Luther King, Jr., and Memphis Sanitation Workers. The Constitution Community: Postwar United States (1945 to Early 1970s).

    ERIC Educational Resources Information Center

    Perry, Douglas

    During inclement weather in Memphis, Tennessee in February 1968, two separate incidents caused black sanitation workers to strike for job safety, better wages and benefits, and union recognition. Mayor Henry Loeb was unsympathetic and opposed to the union. Martin Luther King agreed to lend his support to the sanitation workers and spoke at a rally…

  16. Community Colleges Join the Green Movement

    ERIC Educational Resources Information Center

    Ullman, Ellen

    2008-01-01

    Across the country, mayors, business owners, government workers, and labor leaders are saying it's time to push for a greener world. Community colleges are advancing the jobs of the future at a much faster rate than anyone else. To truly embrace sustainability, it must be integrated into all facets of the college: mission and planning, curricula,…

  17. Three Streams and Four Policy Entrepreneurs Converge: A Policy Window Opens.

    ERIC Educational Resources Information Center

    Lieberman, Joyce M.

    2002-01-01

    Investigates problems in the Chicago Public Schools by examining political and legislative processes, key players, and key events that created the Illinois legislature's unprecedented decision to turn total control of this school district over to the Chicago mayor's office. Addresses this issue through Kingdon's work on the first two phases of the…

  18. Stacking up 2D materials

    NASA Astrophysics Data System (ADS)

    Mayor, Louise

    2016-05-01

    Graphene might be the most famous example, but there are other 2D materials and compounds too. Louise Mayor explains how these atomically thin sheets can be layered together to create flexible “van der Waals heterostructures”, which could lead to a range of novel applications.

  19. Chasing the Blues Away: Charter Schools Scale Up in Chicago

    ERIC Educational Resources Information Center

    Lake, Robin J.; Rainey, Lydia

    2005-01-01

    In the past eight years, Chicago has created an excellent charter school model with help from across the city. Mayor Richard Daley supported the reform, Chicago Public Schools developed a thoughtful and proactive approval process, business and civic leaders championed the movement and provided technical support, and teachers and community groups…

  20. Municipal Leadership for Afterschool: Citywide Approaches Spreading across the Country

    ERIC Educational Resources Information Center

    Spooner, Bela Shah

    2011-01-01

    This report presents the broadest look yet at a growing trend in America's cities: the emergence of city-led efforts to build comprehensive afterschool and out-of-school time (OST) systems that meet the needs of children and youth in their communities. Mayors and other municipal officials who have demonstrated leadership in this area are…

  1. New York City's Children First: Lessons in School Reform

    ERIC Educational Resources Information Center

    Kelleher, Maureen

    2014-01-01

    Under Mayor Michael Bloomberg, New York City's education system embarked on a massive change effort, known as Children First, that produced significant results: new and better school options for families, more college-ready graduates, and renewed public confidence in New York City's schools. New York City's reform effort has also produced…

  2. Developing Education Policy: A Cross-Stakeholder Effort

    ERIC Educational Resources Information Center

    Weinberg, Phil; Sweet, Kim; Israel, Doug; Sullivan-Yuknis, Liz

    2014-01-01

    During the 2013 New York City mayoral race, the coalition A+ NYC--made up of community organizers, social service and advocacy groups, and other citywide and statewide groups--set out to ground the education conversation in research and proven practices. In a campaign called PS 2013, A+ NYC brought together education experts and practitioners as…

  3. Equity-Driven Public Education: A Historic Opportunity

    ERIC Educational Resources Information Center

    Chatterjee, Oona

    2014-01-01

    The election of Mayor Bill de Blasio in November 2013 was a historic moment for proponents of student-centered, equity-driven public education. During the campaign, de Blasio ran on an agenda of ending New York City's "Tale of Two Cities" and elevated a comprehensive vision for improving the city's more than 1,800 public…

  4. James Madison High: A School at the Crossroads

    ERIC Educational Resources Information Center

    Stroup, John T.; Salmonowicz, Michael J.; Broom, Christopher C.

    2007-01-01

    This case tells the story of James Madison High School, which became the epicenter of a debate over the future reorganization and control of large secondary schools in the Los Angeles Unified School District (LAUSD). The LAUSD, recently taken over by the newly elected mayor, was fighting for control of this 3,000-student high school with a charter…

  5. Minorities and Urban Electoral Change: A Longitudinal Study.

    ERIC Educational Resources Information Center

    Browning, Rufus P.; And Others

    1979-01-01

    Analyzes changes in minority officeholding, voter turnout, and minority candidacies and coalitions in mayoral and council elections in 10 northern California cities from 1950 to 1977. Expanding on studies of negative impact of nonpartisan elections on Democratic strength, argues that traditional nonpartisan structures have been significantly…

  6. Facebook-Driven Newark Overhaul Lurches Forward

    ERIC Educational Resources Information Center

    Gewertz, Catherine

    2010-01-01

    What began as a swashbuckling move by the mayor of Newark, New Jersey, the state's governor, and a newly minted billionaire to reshape the beleaguered Newark school system has turned into a tangle of blowback and counterpunches as skeptics contend the plan would violate state law. At issue is the power-sharing arrangement proposed by the three…

  7. National Strategies and Regional Co-Operation for the 21st Century. Proceedings of the Regional Conference on Higher Education (Tokyo, Japan, 8-10 July 1997).

    ERIC Educational Resources Information Center

    United Nations Educational, Scientific and Cultural Organization, Bangkok (Thailand). Principal Regional Office for Asia and the Pacific.

    This collection of papers begins with a preface by Victor Ordenez, followed by opening speeches by Federico Mayor, Tetsuo Misumi, Heitor Gurgulino de Souze, and Wichit Srisa-an, and a keynote address by Takashi Kosugi. Three working papers include: "The University of the Future" (Edgardo J. Angara); "Institutional Challenges, Responses and…

  8. Academic Freedom and University Autonomy. Papers on Higher Education Series.

    ERIC Educational Resources Information Center

    United Nations Educational, Scientific, and Cultural Organization, Bucharest (Romania). European Centre for Higher Education.

    This volume contains speeches and papers given at the International Conference on Academic Freedom and University Autonomy held in Sinaia, Romania, May 5-7, 1992. Section 1 contains introductory addresses by Federico Mayor, Maitland Stobart, Hinrich Seidel,and Walter Kamba. Section 2 contains 18 papers that address connotations and challenges of…

  9. Sexual Exploitation of Children--A Problem of Unknown Magnitude. Report to the Chairman, Subcommittee on Select Education, House Committee on Education and Labor.

    ERIC Educational Resources Information Center

    Ahart, Gregory J.

    This report contains the results of an extensive literature search by the General Accounting Office (GAO) on the subject of teenage prostitution and child pornography and federal, state and local efforts to deal with the problem. Also included are results of a survey of police departments and mayors' offices of the 22 largest U.S. cities and all…

  10. Estudio de los Institutos Nacionales de la Salud indica que quienes toman café tienen un riesgo meno

    Cancer.gov

    Los adultos mayores que tomaron café, con o sin cafeína, tuvieron un riesgo menor de muerte en general que quienes no tomaron café, según un estudio llevado a cabo por investigadores del Instituto Nacional del Cáncer (NCI), parte de los Institutos Naciona

  11. Of people, particles and prejudice

    NASA Astrophysics Data System (ADS)

    Jackson, Penny; Greene, Anne; Mears, Matt; Spacecadet1; Green, Christian; Hunt, Devin J.; Berglyd Olsen, Veronica K.; Ilya, Komarov; Pierpont, Elaine; Gillman, Matthew

    2016-05-01

    In reply to Louise Mayor's feature article “Where people and particles collide”, about the experiences of researchers at CERN who are lesbian, gay, bisexual or transgender (LGBT), efforts to make LGBT CERN an officially recognized club, and incidents where posters advertising the club have been torn down or defaced (March pp31–36, http://ow.ly/YVP2Z).

  12. Engaging Cities: How Municipal Leaders Can Mobilize Communities to Improve Public Schools

    ERIC Educational Resources Information Center

    Grady, Michael; Rothman, Robert; Smith, Hal

    2006-01-01

    More than at any time in our nation's history, mayors are playing an active role in mobilizing these local community and civic interests to act collectively on behalf of children and youth. These leaders see a vital link between their cities' capacity to prepare young people for successful adulthood and long-term civic vitality. More than any…

  13. 75 FR 76481 - Notice of Intent To Prepare Environmental Impact Statement for the HOPE SF Development at Alice...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-08

    ... URBAN DEVELOPMENT Notice of Intent To Prepare Environmental Impact Statement for the HOPE SF Development... the public that the City and County of San Francisco's Mayor's Office of Housing (MOH) as the... assumption of its NEPA authority and NEPA lead agency responsibility by the City and County of San...

  14. Hacer frente - La vida día a día

    Cancer.gov

    Enfrentarse al cáncer incluye una serie de eventos que cambian la vida de la mayoría de las personas. Aunque puede ser difícil, hay medidas que usted puede tomar para ajustarse a su nueva forma de vida.

  15. The Renaissance of the American City: A Compendium of City Strategies Prepared for the Summit for Investment in the New American City (Washington, DC, April 4-5, 2001).

    ERIC Educational Resources Information Center

    United States Conference of Mayors, Washington, DC.

    This compendium report presents papers on what mayors have done to revitalize their cities. These efforts have been concentrated on improving schools and educational outcomes, renewing strong neighborhoods, investing in infrastructure, improving public health facilities, and reducing crime. The reports include: "City of Akron: The Akron…

  16. Cutting through the Hype: The Essential Guide to School Reform. Revised, Expanded, and Updated Edition

    ERIC Educational Resources Information Center

    David, Jane L.; Cuban, Larry

    2010-01-01

    "Cutting Through the Hype: The Essential Guide to School Reform" is a revised, expanded, and updated version of the classic work by Jane L. David and Larry Cuban. It offers balanced analyses of 23 currently popular school reform strategies, from teacher performance pay and putting mayors in charge to turnaround schools and data-driven instruction.…

  17. Alzheimer's Disease: Burdens and Problems for Victims and Their Families. Hearing before the Select Committee on Aging. House of Representatives, Ninety-Ninth Congress, First Session (October 28, 1985, Elizabeth, NJ)

    ERIC Educational Resources Information Center

    Congress of the U.S., Washington, DC. House Select Committee on Aging.

    This document presents witness testimonies from the Congressional hearing called to examine the problem of Alzheimer's disease. Opening statements are included from Congressmen Rinaldo, Courter, and Saxton, and from Tom Dunn, the mayor of Elizabeth, New Jersey where the hearing was held. J. Richard Goldstein, New Jersey State Commissioner of…

  18. Adult Education. The Quality of Life. ASPBAE Courier No. 52.

    ERIC Educational Resources Information Center

    ASPBAE Courier, 1991

    1991-01-01

    This issue of the "Courier" examines the quality of life as it can be improved by adult education, especially in the countries of Asia, Africa, and the South Pacific. It also looks at the need for women's education. The following six articles are included: (1) "The Future of the Family" (Federico Mayor); (2) "Her Words on His Lips: Gender Popular…

  19. 78 FR 20331 - Changes in Flood Hazard Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-04

    ..., 200 Lincoln Avenue, Santa Fe, NM 87501. Oklahoma: Tulsa City of Tulsa (12- The Honorable Stormwater.... Bartlett, Jr., South Jackson, Mayor, City of Suite 302, Tulsa, Tulsa, 175 East OK 74107. 2nd Street, Suite 690, Tulsa, OK 74103. Texas: Bexar City of San Antonio The Honorable Municipal Plaza,...

  20. Evidence for Moving to K-8 Model Not Airtight

    ERIC Educational Resources Information Center

    Viadero, Debra

    2008-01-01

    When the mayor and public school officials in the District of Columbia unveiled plans last month for converting Washington's middle and elementary schools to a pre-K-8 model, system leaders seemed confident the change would be good for students. After all, the school system has plenty of company. Since the late 1990s, districts in a growing number…

  1. Breaking Away. The Future of Cities. Essays in Memory of Robert F. Wagner, Jr.

    ERIC Educational Resources Information Center

    Vitullo-Martin, Julia, Ed.

    The death of Robert F. Wagner, Jr., the widely admired former deputy mayor of New York City, in 1993, halted collaboration on a planned book about solutions to urban problems. This collection, dedicated to his memory, takes up the legacy of the earlier book with discussion of the future of cities from the scholarly perspective, from the…

  2. 76 FR 67771 - Post Office Closing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-02

    ...: Administrative record due (from Postal Service); November 21, 2011, 4:30 p.m., Eastern Time: Deadline for notices... St. Olaf, Iowa. The petition for review was filed by Adam Meyer, Mayor, and City Council of St. Olaf... are 8 a.m. to 4:30 p.m., Eastern Time, Monday through Friday, except on Federal government...

  3. Group 8: Student Support Professionals. IMPACT: The District of Columbia Public Schools Effectiveness Assessment System for School-Based Personnel, 2012-2013

    ERIC Educational Resources Information Center

    District of Columbia Public Schools, 2013

    2013-01-01

    The 2012-2013 school year represents a pivotal juncture for DC Public Schools. Last spring, Mayor Gray and Chancellor Kaya Henderson introduced "A Capital Commitment," their ambitious plan to dramatically accelerate student achievement in the district over the next five years by providing all of their students with a safe, academically…

  4. Field Hearing on the Office of Educational Research and Improvement [OERI]. Hearing before the Subcommittee on Select Education and Civil Rights of the Committee on Education and Labor. House of Representatives, One Hundred Third Congress, First Session (New York, NY, March 8, 1993).

    ERIC Educational Resources Information Center

    Congress of the U.S., Washington, DC. House Subcommittee on Select Education and Civil Rights.

    This hearing examines issues related to proposed legislation that would strengthen the capacity of the U.S. Department of Education Office of Educational Research and Improvement to deal with two widespread problems: (1) mismanagement, corruption and waste in non-instructional educational services resulting from the failure of governors, mayors,…

  5. Genealogy and Educational Research

    ERIC Educational Resources Information Center

    Christensen, Gerd

    2016-01-01

    The aim of this paper was to demonstrate how genealogy can be used as a method for critical education research. As Foucault emphasized, genealogy is a method for identifying the way in which the individuals are subjectified through discourse. The genealogical analysis in the article defines two mayor tendencies in contemporary Danish pedagogy:…

  6. 75 FR 82272 - Changes in Flood Elevation Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-30

    ... and Review, 58 FR 51735. Executive Order 13132, Federalism. This interim rule involves no policies..., 1978 Comp., p. 329; E.O. 12127, 44 FR 19367, 3 CFR, 1979 Comp., p. 376. Sec. 65.4 0 2. The tables..., 2010; The Honorable Bob Lemon, January 14, 2011 481282 (09-06-3455P). September 16, 2010; Mayor,...

  7. The Lion and the Lady Revisited: Another Look at the Firing of Mary L. Jones as Los Angeles Public Librarian in 1905.

    ERIC Educational Resources Information Center

    Wiegand, Wayne A.

    1983-01-01

    Recounts events that led to the firing of Mary L. Jones, Director of Los Angeles Public Library (1905) and caught in public crossfire such figures as the mayor, city council, library board of directors, Charles Lummis (Jones's replacement), Susan B. Anthony, Anna Shaw, Herbert Putnam, and Melvil Dewey. (29 references) (EJS)

  8. 77 FR 25490 - Changes in Flood Hazard Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-30

    ...://www.rampp- April 27, 2012......... 050012 (11-06-3059P)...... McCaslin, Mayor, Avenue, team.com/ City... http://www.starr- May 4, 2012 390328 areas of Licking Timothy Bubb, Street, Newark, team.com/starr...://www.starr- May 4, 2012 390330 Granville. Melissa Hartfield, Granville, OH team.com/starr/...

  9. 77 FR 73480 - Changes in Flood Hazard Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-10

    ...:// December 17, 2012...... 080046 Denver (12-08- Michael B. Department, 201 www.bakeraecom.com/ 0474P........... 130058 areas of Colquitt B. Alderman, Compliance www.bakeraecom.com/ County (12-04- Chairman, Office, 101..., 2012...... 010447 04-3890P). Sanders, Mayor, Main Street, www.bakeraecom.com/ City of Pinson,...

  10. 77 FR 59950 - Changes in Flood Hazard Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-01

    ...:// October 22, 2012..... 080159 Springs (12-08- B. Roberts, Department of www.bakeraecom.com/ 0379P). Manager... Street, www.bakeraecom.com/ City of Folly Folly Beach, SC index.php/ Beach, P.O. Box 29439. southcarolina........ 010153 (11-04-5937P). Tommy Battle, Fountain Circle, www.bakeraecom.com/ Mayor, City of Huntsville,...

  11. 75 FR 18090 - Changes in Flood Elevation Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-09

    ... and Review, 58 FR 51735. Executive Order 13132, Federalism. This interim rule involves no policies..., 1978 Comp., p. 329; E.O. 12127, 44 FR 19367, 3 CFR, 1979 Comp., p. 376. Sec. 65.4 0 2. The tables... 3028P). November 13, 2009; Terrell, Mayor, City of McKinney Courier- Allen, 305 Century Gazette....

  12. 75 FR 18073 - Changes in Flood Elevation Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-09

    ... Planning and Review, 58 FR 51735. Executive Order 13132, Federalism. This interim rule involves no policies..., 1978 Comp., p. 329; E.O. 12127, 44 FR 19367, 3 CFR, 1979 Comp., p. 376. Sec. 65.4 0 2. The tables...; Loughmiller, Mayor, City McKinney Courier- of McKinney, 222 North Gazette. Tennessee Street, McKinney,...

  13. Urban Youth and School Pushout: Gateways, Get-aways, and the GED. Critical Youth Studies

    ERIC Educational Resources Information Center

    Tuck, Eve

    2011-01-01

    Recent efforts to reform urban high schools have been marked by the pursuit of ever-increasing accountability policies, most notably through the use of high-stakes standardized testing, mayoral control, and secondary school exit exams. "Urban Youth and School Pushout" excavates the unintended consequences of such policies on secondary school…

  14. Securing the Future of New York's Children: Taking the Next Steps toward Truly Universal Prekindergarten

    ERIC Educational Resources Information Center

    Rebell, Michael A.; Wolff, Jessica R.

    2014-01-01

    With the strong leadership of Governor Andrew Cuomo, solid support from the state legislature, the Regents, and the New York State Education Department, and the unwavering commitment of Mayor Bill de Blasio of New York City, New York State has made significant strides over the past year in expanding access to high-quality full-day prekindergarten…

  15. 78 FR 21136 - Changes in Flood Hazard Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-09

    ... First RegionV.aspx. Street, Room 402, Duluth, MN 55802. Missouri: Greene City of The Honorable Bob 840... team.com/starr/ Weaver, Mayor, Road, Darien, IL LOMR/Pages/ City of Darien, 60561. RegionV.aspx. 1702..., Department, 3505 LOMR/Pages/ 6141 North North Dries Lane, RegionV.aspx. Evergreen Circle, Peoria, IL...

  16. One Step Forward--Half a Step Back: A Status Report on Bias-Based Bullying of Asian American Students in New York City Schools

    ERIC Educational Resources Information Center

    Asian American Legal Defense and Education Fund, 2013

    2013-01-01

    In September 2008, Mayor Michael Bloomberg and former Schools Chancellor, Joel Klein announced Chancellor's Regulation A-832, which established policies and procedures on how New York City schools should respond to bias-based harassment, intimidation, and bullying in schools. The Asian American Legal Defense and Education Fund (AALDEF), the…

  17. Designing New York's Future

    ERIC Educational Resources Information Center

    Giles, David

    2012-01-01

    The genius of Mayor Bloomberg's plan to develop a new applied sciences campus in New York City is that it acknowledges the increasingly pivotal role of academic institutions as drivers of local economic growth. At a time when large corporations may not be the reliable job producers they were in the past and cities like New York badly need to…

  18. New Demands Shape a Field in Transition. NACSA Monograph

    ERIC Educational Resources Information Center

    Mead, Sara

    2012-01-01

    Charter schools have moved from being widely viewed as a marginal force in public education reform to taking on a central role in our national, state, and local debates around improving education. And a growing number of policymakers--including superintendents, mayors, governors, and even U.S. Secretary of Education Arne Duncan--are using…

  19. 24 CFR 968.305 - Definitions.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... demonstrating the partnership process and any other documents as prescribed by HUD. Chief executive officer (CEO). The CEO of a unit of general local government means the elected official or the legally designated.... Examples of the CEO of a unit of general local government are: the elected mayor of a municipality;...

  20. Straight A's: Public Education Policy and Progress. Volume 4, Number 13

    ERIC Educational Resources Information Center

    Amos, Jason, Ed.

    2004-01-01

    "Straight A's: Public Education Policy and Progress" is a biweekly newsletter that focuses on education news and events both in Washington, DC and around the country. The following articles are included in this issue: (1) U.S. Mayors Adopt Alliance's Recommendations on Teacher Induction at Annual Conference; (2) Chicago to Close Worst-Performing…

  1. Youth: 2000, A Call to Action. Report on a National Leadership Meeting (Washington, D.C., June 10, 1986).

    ERIC Educational Resources Information Center

    National Alliance of Business, Inc., Washington, DC.

    This report describes and summarizes the discussion at a national leadership meeting conducted by the National Alliance of Business. The meeting focused on the complex and challenging economic, social, and educational issues facing today's youth. Participants included business executives, foundation presidents, mayors, state legislators, county…

  2. The Long History of Labor Bashing

    ERIC Educational Resources Information Center

    Lichtenstein, Nelson

    2011-01-01

    When he was still President Obama's chief of staff, Rahm Emanuel, now mayor-elect of Chicago, famously quipped: "Never allow a crisis to go to waste." Republican governors in Wisconsin, New Jersey, Ohio, and other states have certainly taken that advice to heart. By emphasizing, and in some cases manipulating, the red ink flowing through so many…

  3. A Good Investment? Race, Philanthrocapitalism and Professionalism in a New York City Small School of Choice

    ERIC Educational Resources Information Center

    Brown, Amy

    2012-01-01

    Incorporating data from two years of ethnographic teacher-research, this article explores how a curriculum of "professionalism" resonates with teachers and students in a small New York City school of choice. Using the literature on Critical Whiteness Studies and philanthrocapitalism in the context of New York City Mayor Michael Bloomberg's…

  4. Hearing on the Proper Federal Role in Education Policy. Hearing before the Committee on Economic and Educational Opportunities. House of Representatives, One Hundred Fourth Congress, First Session (January 12, 1995).

    ERIC Educational Resources Information Center

    Congress of the U.S., Washington, DC. House Committee on Economic and Educational Opportunities.

    This document records the proceedings of a Congressional hearing on the role of the federal government in education policy. Statements are provided by Richard Riley (Secretary of Education), Bret Schundler (Mayor, Jersey City, New Jersey), Tommy Thompson (Governor, Wisconsin), and Representatives, William L. Clay (Missouri), William F. Goodling…

  5. Citizen Committees: A Guide to Their Use in Local Government.

    ERIC Educational Resources Information Center

    Rodgers, Joseph Lee, Jr.

    This guide was prepared to fill the need for literature on the formation and functions of citizen committees. It is designed for mayors, other public officials, and citizen leaders who are responsible for creating committees and for citizens who serve on committees. Types of citizen committees are defined and classified according to primary…

  6. Dance Theatre of Harlem--Theater Activity Packet.

    ERIC Educational Resources Information Center

    New York City Board of Education, Brooklyn, NY. Div. of Curriculum and Instruction.

    Intended to complement the New York City communication arts curriculum, this packet introduces young students, guided by the classroom teacher, to a dress rehearsal performance of the Dance Theatre of Harlem ballet company. The packet is one of a series in the "Early Stages" program, a joint effort of the Mayor's Office of Film, Theater and…

  7. Youth Employment Act of 1979, Part 2. Hearings before the Subcommittee on Employment Opportunities. Ninety-Sixth Congress, First Session, on H.R. 4465 and H.R. 4534.

    ERIC Educational Resources Information Center

    Congress of the U.S., Washington, DC. House Committee on Education and Labor.

    Proceedings are presented of hearings before the House Committee on Education and Labor on youth unemployment in the United States. Among those testifying before the hearings were (1) Mayor Tom Bradley on youth unemployment in large cities, (2) Mary Heagele, on the relationship of youth unemployment and the prison system, (3) Kenneth Hahn, on the…

  8. Study of the Effectiveness and Efficiency of Charter Schools in Indiana. Executive Summary

    ERIC Educational Resources Information Center

    Akey, Terri; Plucker, Jonathan A.; Hansen, John A.; Michael, Robert; Branon, Suzanne; Fagen, Rebecca; Zhou, Gary

    2008-01-01

    The Indiana General Assembly passed charter school enabling legislation in 2001, and the first charter schools opened their doors for the 2002-03 school year. As of fall 2008, 49 charter schools are operating in Indiana. A total of 17 of these schools are sponsored by the City of Indianapolis, Office of the Mayor, 29 schools are sponsored by…

  9. A PLAN FOR EDUCATIONAL POLICY AND ADMINISTRATIVE UNITS, FURTHER DECENTRALIZATION OF THE PUBLIC SCHOOLS.

    ERIC Educational Resources Information Center

    New York City Board of Education, Brooklyn, NY.

    THIS PLAN CONTAINS LEGISLATIVE PROPOSALS AND GENERAL RECOMMENDATIONS FOR THE DECENTRALIZATION OF THE NEW YORK CITY PUBLIC SCHOOLS AND FOR INCREASED PARENT AND COMMUNITY PARTICIPATION. IN PART IT RESPONDS TO AN EARLIER PLAN PROPOSED BY THE MAYOR'S PANEL ON DECENTRALIZATION. THE PRESENT PROPOSAL SUGGESTS THAT THE ADMINISTRATIVE RESTRUCTURING OF THE…

  10. Music Education for Life: Core Music Education--Students' Civil Right

    ERIC Educational Resources Information Center

    Shuler, Scott C.

    2012-01-01

    Educators are obliged to stand up for children--to point out when the self-declared local "education emperor" (or mayor or governor) has no clothes. The so-called reform government has turned some local districts into a Wild West where schools share no common or sequential curriculum and all that matters is test scores. Music educators must join…