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Sample records for san cayetano elementary

  1. Innovaciones tecnológicas productivas agrarias en el partido de San Cayetano: implicancias en la sostenibilidad del suelo

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    Claudia Andrea Mikkelsen

    2005-01-01

    Full Text Available La modernización e incorporación de nuevas técnicas, está atada a la renovación de los objetos técnicos y las acciones que con los mismos se realizan, y en función de esto como se dinamiza, cambia y transforma el territorio. El presente trabajo se centra en el análisis y estudio de la realidad rural presente en Argentina, más aún en la región pampeana y dentro de ella en el sudeste bonaerense, partido de San Cayetano, haciendo especial hincapié en la producción agrícola y la sostenibilidad ambiental en los sistemas productivos rurales. Seguido de este primer objetivo se pretende analizar la escala de incorporación de dichas tecnologías, para considerar las estrategias adaptativas de los productores y como su puesta en práctica modifican el uso del territorio. En el universo de análisis propuesto (partido de San Cayetano se toman como muestra un conjunto de unidades de producción agrícola, y actúan como unidades de observación los productores agropecuarios responsables de dichas unidades. A los efectos de abordar la problemática planteada se utiliza una metodología en la cual se combinan técnicas cualitativas y cuantitativas. El análisis cualitativo, se efectúa en base a información recabada mediante entrevistas semiestructuradas realizadas a informantes calificados y agentes productivos directamente vinculados a las unidades de análisis. Respecto al análisis cuantitativo, se consideraron datos aportados por la Sociedad Rural de San Cayetano y la Chacra Experimental Barrow, el censo agropecuario 1988, la Encuesta Nacional Agropecuaria 1999 del INDEC, cartas temáticas y mapas del partido.Updating and incorporating new methods imply renewal of equipment as well as new procedures to be performed with them, resulting in a more dynamic, transformed and renovated territory. This work focuses on the analysis and study of the countryside real situation in Argentina at present, more precisely in the pampa's prairies region

  2. Characterizing the recent behavior and earthquake potential of the blind western San Cayetano and Ventura fault systems

    Science.gov (United States)

    McAuliffe, L. J.; Dolan, J. F.; Hubbard, J.; Shaw, J. H.

    2011-12-01

    The recent occurrence of several destructive thrust fault earthquakes highlights the risks posed by such events to major urban centers around the world. In order to determine the earthquake potential of such faults in the western Transverse Ranges of southern California, we are studying the activity and paleoearthquake history of the blind Ventura and western San Cayetano faults through a multidisciplinary analysis of strata that have been folded above the fault tiplines. These two thrust faults form the middle section of a >200-km-long, east-west belt of large, interconnected reverse faults that extends across southern California. Although each of these faults represents a major seismic source in its own right, we are exploring the possibility of even larger-magnitude, multi-segment ruptures that may link these faults to other major faults to the east and west in the Transverse Ranges system. The proximity of this large reverse-fault system to several major population centers, including the metropolitan Los Angeles region, and the potential for tsunami generation during offshore ruptures of the western parts of the system, emphasizes the importance of understanding the behavior of these faults for seismic hazard assessment. During the summer of 2010 we used a mini-vibrator source to acquire four, one- to three-km-long, high-resolution seismic reflection profiles. The profiles were collected along the locus of active folding above the blind, western San Cayetano and Ventura faults - specifically, across prominent fold scarps that have developed in response to recent slip on the underlying thrust ramps. These high-resolution data overlap with the uppermost parts of petroleum-industry seismic reflection data, and provide a near-continuous image of recent folding from several km depth to within 50-100 m of the surface. Our initial efforts to document the earthquake history and slip-rate of this large, multi-fault reverse fault system focus on a site above the blind

  3. Palinomorfos en las rocas de la formación San Cayetano, Pinar del Río, Cuba

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    Rolando García-Sánchez

    2003-03-01

    Full Text Available Se presenta una breve reseña de los estudios paleobotánicos realizados en la región y los resultados palinológicos obtenidos recientemente, que sugieren una edad Jurásico Medio para las muestras analizadas, así como ambientes de depósito marino nerítico interno y continentales. Se concluye que los sedimentos analizados no han sufrido los efectos de una elevada alteración térmica. La presencia de abundante materia orgánica en las muestras inspiró su estudio por el método geoquímico Rock- Eval 6 en el Instituto Francés del Petróleo, el que se dará a conocer próximamente en una publicación de la AAPG. Esto reafirmó pesquisas antecedentes similares con muestras del subsuelo, que caracterizan a la Fm. San Cayetano como portadora de rocas capaces de generar hidrocarburos en condiciones favorables de yacencia. Varios de los palinomorfos recuperados de estos sedimentos corresponden a especies aún no descritas en la bibliografía palinológica.

  4. The san san game as didatic resource of support in the discussions about regulatory nutrients in elementary education

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    Bárbara Della Antonia

    2017-11-01

    Full Text Available Leisure activities are used in the learning teaching process of the different areas of knowledge, to promote learning spontaneously and fun. For the area of Agrarian Sciences, which is a multidisciplinary area of study that can be approached from basic education to higher education, it is necessary to study the elaboration of didactic resources. Thus, this study aimed at the development of a didactic game in the field of agricultural sciences aimed at elementary education, whose strategy is to help in the understanding of contents related to the chemical composition of foods, focusing on regulatory nutrients. The game SAN SAN was applied and evaluated with elementary school students of a public school, bringing to the end of the process, positive results in the sense of motivation to study the subject, involvement of students in classes and contribution with an effective didactic resource.

  5. La beca de retorno de la Universidad Peruana Cayetano Heredia Return scholarship of the Universidad Peruana Cayetano Heredia

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    Humberto Guerra

    2010-09-01

    Full Text Available Desde hace muchas décadas los países en desarrollo sufrimos de la "fuga de cerebros". Los países industrializados han elevado sus barreras y han creado mecanismos para atraer a los profesionales extranjeros, con una agresiva actitud de captura de talentos, en el afán de ganar competitividad. Para menguar esa situación, la Universidad Peruana Cayetano Heredia ha creado su propia beca del retorno hace unos 12 años, repatriando a 12 científicos. El salario que los ha atraído suma en total US$ 333 540 y ellos han logrado captar fondos para investigación de US$ 9 249 828,42 en el mismo período, cifra que es 27 veces mayor a lo que invirtió en ellos la universidad. Han producido ocho artículos nacionales y 68 artículos internacionales, han preparado a nivel de tesis a 29 estudiantes de pregrado y a 20 de posgrado. Esta experiencia, todavía en evolución, representa un éxito capaz de ser emulado por otras universidades e instituciones de nuestros países.Developing countries suffer from brain drain for many decades. Industrialized countries have raised their barriers against immigrants, but have created mechanisms to attract foreign professionals, with aggressive policies to capture talents, in an effort to increase their competitiveness. To mitigate the effects of the migration of scientists, the Universidad Peruana Cayetano Heredia has created its own "return scholarship" about 12 years ago, and has repatriated 12 scientists through it. The funds invested in attracting the scholars total U.S. $ 333,540.00 and they have secured U.S. $ 9’249,828.42 in research funds during the same period, a figure over 27 times higher. They have published 8 articles in national journals, 68 internationally, and trained 29 undergraduate and 20 graduate students as Thesis Tutors. Other universities and institutions of our countries can emulate this successful experience, which is still evolving.

  6. Linking Late Cretaceous to Eocene Tectonostratigraphy of the San Jacinto Fold Belt of NW Colombia With Caribbean Plateau Collision and Flat Subduction

    Science.gov (United States)

    Mora, J. Alejandro; Oncken, Onno; Le Breton, Eline; Ibánez-Mejia, Mauricio; Faccenna, Claudio; Veloza, Gabriel; Vélez, Vickye; de Freitas, Mario; Mesa, Andrés.

    2017-11-01

    Collision with and subduction of an oceanic plateau is a rare and transient process that usually leaves an indirect imprint only. Through a tectonostratigraphic analysis of pre-Oligocene sequences in the San Jacinto fold belt of northern Colombia, we show the Late Cretaceous to Eocene tectonic evolution of northwestern South America upon collision and ongoing subduction with the Caribbean Plate. We linked the deposition of four fore-arc basin sequences to specific collision/subduction stages and related their bounding unconformities to major tectonic episodes. The Upper Cretaceous Cansona sequence was deposited in a marine fore-arc setting in which the Caribbean Plate was being subducted beneath northwestern South America, producing contemporaneous magmatism in the present-day Lower Magdalena Valley basin. Coeval strike-slip faulting by the Romeral wrench fault system accommodated right-lateral displacement due to oblique convergence. In latest Cretaceous times, the Caribbean Plateau collided with South America marking a change to more terrestrially influenced marine environments characteristic of the upper Paleocene to lower Eocene San Cayetano sequence, also deposited in a fore-arc setting with an active volcanic arc. A lower to middle Eocene angular unconformity at the top of the San Cayetano sequence, the termination of the activity of the Romeral Fault System, and the cessation of arc magmatism are interpreted to indicate the onset of low-angle subduction of the thick and buoyant Caribbean Plateau beneath South America, which occurred between 56 and 43 Ma. Flat subduction of the plateau has continued to the present and would be the main cause of amagmatic post-Eocene deposition.

  7. Pre-eclampsia: Factores de riesgo. Estudio en el Hospital Nacional Cayetano Heredia.

    OpenAIRE

    Salviz Salhuana, Manuel; Cordero Muñoz, Luis; Saona Ugarte, Pedro

    1996-01-01

    Objetivo: El objetivo fue evaluar los factores de riesgo asociados a pre-eclampsia en nuestro hospital. Material y métodos: Se realizó un estudio prospectivo, de tipo caso-control concurrente en 88 pacientes con pre-eclampsia e igual número de controles. El trabajo se llevó a cabo en el Servicio de Obstetricia del Hospital Nacional Cayetano Heredia entre los meses de marzo a agosto de 1993. Resultados: Los factores asociados a pre-eclampsia fueron el antecedente previo a pre-eclampsia (OR:17)...

  8. [Return scholarship of the Universidad Peruana Cayetano Heredia].

    Science.gov (United States)

    Guerra, Humberto

    2010-09-01

    Developing countries suffer from brain drain for many decades. Industrialized countries have raised their barriers against immigrants, but have created mechanisms to attract foreign professionals, with aggressive policies to capture talents, in an effort to increase their competitiveness. To mitigate the effects of the migration of scientists, the Universidad Peruana Cayetano Heredia has created its own "return scholarship" about 12 years ago, and has repatriated 12 scientists through it. The funds invested in attracting the scholars total U.S. $333,540.00 and they have secured U.S. $9,249,828.42 in research funds during the same period, a figure over 27 times higher. They have published 8 articles in national journals, 68 internationally, and trained 29 undergraduate and 20 graduate students as Thesis Tutors. Other universities and institutions of our countries can emulate this successful experience, which is still evolving.

  9. The Third Correlate of Effective Schools Safe and Orderly Environment--The Custodian Connection: A Study of Job Satisfaction as Perceived by Public Elementary School Custodians in San Bernardino County

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    Masters, Ann V.

    2009-01-01

    Purpose. The purpose of this study was to examine factors that contribute to job satisfaction and dissatisfaction, as perceived by elementary school custodians in San Bernardino County. Methodology. Descriptive research methods were used to conduct this qualitative study. Critical incident technique was employed for data collection. Data were…

  10. Promotion of water consumption in elementary school children in San Diego, USA and Tlaltizapan, Mexico.

    Science.gov (United States)

    Elder, John P; Holub, Christina K; Arredondo, Elva M; Sánchez-Romero, Luz María; Moreno-Saracho, Jessica E; Barquera, Simón; Rivera, Juan

    2014-01-01

    Consumption of water may help promote health and prevent obesity in children by decreasing consumption of sugar-sweetened beverages. This study used evidence-based strategies to increase water consumption in Mexican-American and Mexican children. In 2012, two schools in San Diego, USA and two other in Tlaltizapan, Mexico were recruited to Agua para Niños (Water for Kids), a program designed to promote water consumption among elementary grade students. Guided by operant psychology, the intervention focused on school and classroom activities to encourage water consumption. One control and one intervention school in each country were included. Agua para Niños resulted in increases in observed water consumption and bottle possession among US and Mexican students. Teacher receptivity to the program was very positive in both countries. Agua para Niños yielded sufficiently positive behavioral changes to be used in a future fully randomized design, and to contribute to school nutrition policy changes.

  11. Concepción del diseño en Cayetano Aníbal y su vertiente comunicativa

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    León Moreno García

    2015-11-01

    Full Text Available En este estudio se explica la trayectoria de Cayetano Aníbal en el ámbito del diseño, parte fundamental de su labor artística, y se profundiza en cómo  concibe precisamente el diseño este creador. Se acompaña de unos breves apuntes donde explicamos y contextualizamos su formación como artista y cómo comienza a tomar contacto con esta actividad, junto a algunos datos de su evolución y referencias a sus obras más señeras. Para seguidamente ir analizando algunas de ellas, incidiendo en el diseño de carteles, murales, carpetas de grabado, proyectos de esculturas, intercalando del mismo modo referencias a su producción editorial donde encontramos reflexiones en cuanto a concepción de diseño se refiere. En este análisis de su obra y cómo fue concebida, remarcamos su vertiente comunicativa y cómo consigue transmitir ciertos valores e ideas o proponer ciertos conceptos. Así, según el punto de vista de Cayetano Aníbal, el diseño es el producto de las capacidades y exigencias de la mente para reflejar, explicar, comunicar y transformar los entornos y los contextos. Terminamos con una reflexión de cómo debiera ser el diseño y el proceso mental por el que un artista debe enfrentarse a la concepción de una obra de arte.

  12. El programa de medicina en la Universidad Peruana Cayetano Heredia

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    Manuel Gutiérrez Sierra

    Full Text Available Los autores relatan el desarrollo del programa de estudios de la carrera de medicina en la Universidad Peruana Cayetano Heredia, especialmente en los últimos 15 años, tiempo en que dirigieron el Comité de Currículo. Ellos describen los fundamentos que han guiado el currículo de la carrera desde sus inicios hasta nuestros días; cómo se diseñó y evolucionó el perfil de egreso, así como las principales influencias en su diseño; cómo han evolucionado los procesos de enseñanza, aprendizaje y evaluación del aprendizaje; cómo se ha dado importancia al proceso de selección de estudiantes, y cómo se ha establecido el concepto de crédito académico ligado al trabajo real del estudiante y no solo al tiempo de trabajo presencial. Finalmente, señalan cómo ha mejorado la opinión que docentes y, especialmente, estudiantes tienen del programa, y los aspectos que deben ser mejorados en el futuro.

  13. The PISCES Project: How Teacher-Scientist Partners can Enhance Elementary Science Instruction

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    Reif, C.; Oechel, W.

    2003-12-01

    The PISCES Project (Partnerships Involving the Scientific Community in Elementary Schools www.sdsa.org/pisces) is an innovative program that brings high quality standards-based elementary science curriculum and hands-on laboratory materials into San Diego County's classrooms. The project is funded by the NSF Graduate Teaching Fellows in K-12 Education (GK-12) program. The project was designed and is administered through cooperation among faculty at San Diego State University and the Science Department of the San Diego County Office of Education. Undergraduate and graduate students enrolled in science programs in San Diego area universities including San Diego State University, California State University San Marcos, and University of California San Diego partner with elementary school teachers. Through this partnership, the scientist brings scientific expertise to the classroom while the teacher delivers the lesson using current pedagogic methods. This is accomplished during a 3 month partnership in which the scientist joins the teacher in the classroom a few days each week to complete professional kit-based curriculum such as that available from FOSS (Full Option Science System) and STC (Science and Technology for Children). The teachers remain in the program for two years during which they have continuous access to the kit-based curriculum as well as two to three partnership cycles. Teachers receive assistance outside of the classroom as well attending professional development institutes three times a year to establish and maintain effective science teaching methods. The San Diego Science Alliance and other community and industry supporters provide the additionalfunding necessary to provide this teacher professional development Currenty, PISCES is present in over 40 schools and is able to provide partnerships to over 100 classrooms each year. In addition to the work done in San Diego, the project has expanded to Barrow, Alaska with plans to expand to La Paz

  14. Pre-eclampsia: Factores de riesgo. Estudio en el Hospital Nacional Cayetano Heredia.

    Directory of Open Access Journals (Sweden)

    Manuel Salviz Salhuana

    1996-01-01

    Full Text Available Objetivo: El objetivo fue evaluar los factores de riesgo asociados a pre-eclampsia en nuestro hospital. Material y métodos: Se realizó un estudio prospectivo, de tipo caso-control concurrente en 88 pacientes con pre-eclampsia e igual número de controles. El trabajo se llevó a cabo en el Servicio de Obstetricia del Hospital Nacional Cayetano Heredia entre los meses de marzo a agosto de 1993. Resultados: Los factores asociados a pre-eclampsia fueron el antecedente previo a pre-eclampsia (OR:17, el índice de masa corporal elevado (OR:9.6, la raza predominantemente blanca (OR:6.4, el antecedente familiar de hipertensión arterial (OR: 5.2, la falta de control pre-natal y la nuliparidad (OR: 2.5. La incidencia de pre-eclampsia fue 4.11%, y requirieron parto por cesárea el 69.3% de las pacientes. Presentaron complicaciones en el puerperio inmediato 28.4% de los casos, siendo más frecuentes las infecciones. (Rev Med Hered 1996; 7: 24-31.

  15. Solar-energy-system performance evaluation. San Anselmo School, San Jose, California, April 1981-March 1982

    Energy Technology Data Exchange (ETDEWEB)

    Pakkala, P.A.

    1982-01-01

    The San Anselmo School is a one-story brick elementary school building in San Jose, California. The active solar energy system is designed to supply 70% of the space heating and 72% of the cooling load. It is equipped with 3740 square feet of evacuated tube collectors, a 2175-gallon tank for heat storage, a solar-supplied absorption chiller, and four auxiliary gas-fired absorption chillers/heaters. The measured solar fraction of 19% is far below the expected values and is attributed to severe system control and HVAC problems. Other performance data given for the year include the solar savings ratio, conventional fuel savings, system performance factor, and solar system coefficient of performance. Also tabulated are monthly performance data for the overall solar energy system, collector subsystem, space heating and cooling subsystems. Typical hourly operation data for a day are tabulated, including hourly isolation, collector array temperatures (inlet and outlet), and storage fluid temperatures. The solar energy use and percentage of losses are also graphed. (LEW)

  16. Solar-energy system performance evaluation. San Anselmo School, San Jose, California, July 1980-March 1981

    Energy Technology Data Exchange (ETDEWEB)

    Pakkala, P.A.

    1981-01-01

    The San Anselmo School is a one-story, brick elementary school building located in San Jose, California. The active solar energy system is designed to supply 70% of the heating load and 72% of the cooling load. It is equipped with 3.740 square feet of evacuated tube collectors, 2175-gallon tank for storage, four auxiliary gas-fired absorption chiller/heaters, and a solar-supplied absorption chiller. The measured heating and cooling solar fractions were 9% and 19%, respectively, for an overall solar fraction of 16%, the lowered performance being attributed to severe system control problems. Performance data include the solar savings ratio, conventional fuel savings, system performance factor, and solar system coefficient of performance. Performance data are presented for the overall system and for each subsystem. System operation and solar energy utilization data are included. Also included are a description of the system, performance evaluation techniques, sensor technology, and typical performance data for a month. Weather data are also tabulated. (LEW)

  17. Maternal attitudes and behaviors regarding feeding practices in elementary school-aged latino children: A pilot qualitative study on the impact of the cultural role of mothers in the US-Mexican border region of san diego, California

    OpenAIRE

    Martinez, SM; Rhee, K; Blanco, E; Boutelle, K

    2015-01-01

    © 2015 Academy of Nutrition and Dietetics. This study aimed to explore the attitudes and behaviors of Latino mothers around feeding their children. Using qualitative methods, we conducted four focus groups in Spanish with 41 Latino mothers of elementary school-age children in San Diego County, CA. Latino mothers' mean age was 41 years; 90% were foreign-born; and 74% had a high school education or less. We explored cultural viewpoints around feeding and cooking and feeding strategies used. Foc...

  18. Maternal attitudes and behaviors regarding feeding practices in elementary school-aged latino children: A pilot qualitative study on the impact of the cultural role of mothers in the US-Mexican border region of San Diego, California

    OpenAIRE

    Martinez, SM; Rhee, K; Blanco, E; Boutelle, K

    2014-01-01

    This study aimed to explore the attitudes and behaviors of Latino mothers around feeding their children. Using qualitative methods, we conducted four focus groups in Spanish with 41 Latino mothers of elementary school-age children in San Diego County, CA. Latino mothers' mean age was 41 years; 90% were foreign-born; and 74% had a high school education or less. We explored cultural viewpoints around feeding and cooking and feeding strategies used. Focus groups were analyzed based on a priori a...

  19. [Demographic and clinical aspects of hepatic fascioliasis between 2013-2010 in National Hospital Cayetano Heredia, Lima, Peru].

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    Chang Wong, Millie Rocío; Pinto Elera, Jesús Omar Andrés; Guzman Rojas, Patricia; Terashima Iwashita, Angélica; Samalvides Cuba, Frine

    2016-01-01

    To describe the demographic and clinical aspects of hepatic fascioliasis as well as the complications and associations between various factors and the disease in a reference hospital. This is a descriptive and retrospective case series study; we included all patients who had a recent diagnosis of hepatic fascioliasis from 2003 to 2010 in the Hospital Nacional Cayetano Heredia. Demographic and clinical variables were analyzed including complications and treatment received. 68 medical records were found eligible for the study. The mean age was 36 years. Ancash department was the most frequent place of origin and residence. Most of them were diagnosed in the chronic phase, the most common symptom was abdominal pain and eight patients had complications: 3 hepatic abscess, 1 subcapsular hematoma, 1 cholangitis and 1 cholangitis plus cholecystitis. There were the following associations: Age under 15 years with chronic phase and hyporexia, being a student with a positive stool analysis; and between being born in an endemic area with the absence of complications. Hepatic fascioliasis has unspecific clinical presentation so the epidemiological or dietary history and specially eosinophilia should guide the diagnosis.

  20. Manifestaciones clínicas y complicaciones de la fase aguda de bartonelosis o Fiebre de la Oroya en pacientes atendidos en el Hospital Nacional Cayetano Heredia.

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    Ciro Peregrino Maguiña Vargas

    2008-07-01

    Full Text Available Objetivos: Determinar las características clínicas, epidemiológicas y de laboratorio de la bartonelosis aguda, así como las complicaciones en una serie de pacientes atendidos en el Hospital Nacional Cayetano Heredia. Material y métodos: Estudio descriptivo de tipo serie de casos de pacientes mayores de 15 años con bartonelosis aguda hospitalizados en el Hospital Nacional Cayetano Heredia entre 1993 y 2006. Resultados: La edad promedio fue 27,8 años, 72,7% fueron varones, 51,5% procedía de Lima y 33,3% de Ancash. Los síntomas principales fueron: fiebre 90,9%, cefalea 87,9%, hiporexia 75,5%, baja de peso 63,6%, e ictericia 57,6%. Dos pacientes presentaron alteraciones en el fondo de ojo: retinitis exudativa y retinopatía hemorrágica. El hematocrito promedio fue 20,8% y 63,6% cursaron hematocrito £20%. Hubo desviación izquierda en 24,2%, hiperbilirrubinemia a predominio indirecto 62,5% e hipoalbuminemia (< 3mg/dl 56,5%. Se presentaron complicaciones en 84,8%, el 27,2% requirió internamiento en UCI. Las complicaciones no infecciosas ocurrieron en 84,8%, hematológicas 81,8% y gastrointestinales 78,7%. Las complicaciones infecciosas se presentaron en 12,1%. Los antibióticos más utilizados fueron ciprofloxacina 66,6% y cloranfenicol 42,4%, se administró corticoides en 9,1% y se transfundió paquete globular en 42,4%. Conclusiones: Los pacientes de UCI tuvieron más complicaciones cardiovasculares, trombocitopenia y mayor severidad de la anemia. No se registró mortalidad. (Rev. Med Hered 2008;19:87-95

  1. Formación de investigadores en el contexto de proyectos colaborativos: experiencias en el Instituto de Medicina Tropical "Alexander von Humboldt", Universidad Peruana Cayetano Heredia Researchers training in the context of the collaborative projects: experiences of Instituto de Medicina Tropical "Alexander von Humbolt", Universidad Peruana Cayetano Heredia

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    Eduardo Gotuzzo

    2010-09-01

    Full Text Available La investigación constituye un elemento fundamental de desarrollo humano y social. Bajo esta perspectiva, supone desafíos y oportunidades particulares para los llamados países "en vías de desarrollo". Una aproximación a tales desafíos y oportunidades se desprende del análisis de dos actividades interrelacionadas: la formación de nuevos investigadores y el desarrollo de investigación con instituciones o investigadores externos a la propia institución ("investigación colaborativa". Ambas actividades son esenciales en la consolidación, ampliación y actualización de las capacidades institucionales de producción científica. Presentamos aquí las experiencias del Instituto de Medicina Tropical "Alexander von Humboldt" de la Universidad Peruana Cayetano Heredia con relación a la formación de investigadores; discutimos los cuatro elementos que consideramos clave en dicho proceso: promoción de entornos estimulantes para investigación, identificación proactiva de becarios, asesorías complementarias y consolidación de redes; y analizamos tres modelos de colaboración internacional exitosos en la formación de nuevos investigadores bajo distintas aproximaciones institucionales.Research is a main element for human and social development. Under this point of view, it involves particular challenges and opportunities for the so-called "developing countries". An approach for those challenges and opportunities comes from the analysis of two interrelated activities; the training of new researchers and the research development with institutions or researchers which are external to the institution ("collaborative research". Both activities are essential for the consolidation, widening and updating of the institutional capabilities for scientific production. We present here the experiences of the Instituto de Medicina Tropical "Alexander von Humboldt" of the Universidad Peruana Cayetano Heredia, in relation to the training of new researchers

  2. Epilepsia Ausencias en el Hospital Nacional Cayetano Heredia (1998-2002

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    Iván Espinoza Quinteros

    2004-04-01

    Full Text Available Objetivo: Describir las características clínicas y epidemiológicas de la epilepsia-ausencias en niños en el Hospital Nacional Cayetano Heredia (HNCH. Material y Métodos: Estudio descriptivo-retrospectivo. Se identificaron los pacientes con diagnóstico de ausencias del Servicio de Neuropediatría atendidos desde enero de 1998 hasta diciembre del 2002. Criterios de inclusión: manifestaciones clínicas de ausencias y Electroencefalograma característico. Exclusión: pacientes con lesiones cerebrales. Resultados: Se incluyeron 33 pacientes (6.4% del total. La edad promedio al inicio de enfermedad fue 6.6 años, sexo femenino: 54.5% y tiempo de enfermedad antes del diagnóstico: 12.5 meses. Presentaron antecedente familiar de convulsiones 30.3% y antecedente de eventos perinatales adversos 18.2%. El 39.4% de pacientes presentó ausencias simples y 60.6% ausencias complejas. El 36.4% tuvo inicialmente un patrón electroencefalográfico bilateral asimétrico que posteriormente se tornó simétrico. Todos recibieron ácido valproico pero en 6% se tuvo que cambiar de medicación debido a efectos adversos y 12% tuvieron que recibir terapia combinada por falta de control. Edad, sexo, tipo de crisis, EEG, antecedentes familiares o perinatales, no influyeron en las características clínicas, electroencefalográficas o respuesta terapéutica. Conclusión: Las ausencias representan 6.4% de todas las epilepsias. La edad promedio es de 6.6 años, los antecedentes familiares están presentes en 30.3% de los pacientes y los eventos adversos perinatales en 18.2%. Las ausencias complejas con automatismos son las más frecuentes y el ácido valproico es un tratamiento efectivo. El tiempo de enfermedad antes del diagnóstico fue 12.5 meses por lo cual se recomienda mayor difusión a nivel de padres, educadores y personal de salud para diagnóstico y control oportunos. (Rev Med Hered 2004; 15:89-95.

  3. Elementary operators - still not elementary?

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    Martin Mathieu

    2016-01-01

    Full Text Available Properties of elementary operators, that is, finite sums of two-sided multiplications on a Banach algebra, have been studied under a vast variety of aspects by numerous authors. In this paper we review recent advances in a new direction that seems not to have been explored before: the question when an elementary operator is spectrally bounded or spectrally isometric. As with other investigations, a number of subtleties occur which show that elementary operators are still not elementary to handle.

  4. [Researchers training in the context of the collaborative projects: experiences of Instituto de Medicina Tropical "Alexander von Humbolt", Universidad Peruana Cayetano Heredia].

    Science.gov (United States)

    Gotuzzo, Eduardo; González, Elsa; Verdonck, Kristien

    2010-09-01

    Research is a main element for human and social development. Under this point of view, it involves particular challenges and opportunities for the so-called "developing countries". An approach for those challenges and opportunities comes from the analysis of two interrelated activities; the training of new researchers and the research development with institutions or researchers which are external to the institution ("collaborative research"). Both activities are essential for the consolidation, widening and updating of the institutional capabilities for scientific production. We present here the experiences of the Instituto de Medicina Tropical "Alexander von Humboldt" of the Universidad Peruana Cayetano Heredia, in relation to the training of new researchers, we discuss the four elements we consider key for this process; the promotion of stimulating environments for research, the proactive identification of fellows, the complementary advice and networks consolidation; and we analyze three successful models of international collaboration for the training of new researchers under different institutional approaches.

  5. San Francisco folio, California, Tamalpais, San Francisco, Concord, San Mateo, and Haywards quadrangles

    Science.gov (United States)

    Lawson, Andrew Cowper

    1914-01-01

    The five sheets of the San Francisco folio the Tamalpais, Ban Francisco, Concord, Ban Mateo, and Haywards sheets map a territory lying between latitude 37° 30' and 38° and longitude 122° and 122° 45'. Large parts of four of these sheets cover the waters of the Bay of San Francisco or of the adjacent Pacific Ocean. (See fig. 1.) Within the area mapped are the cities of San Francisco, Oakland, Berkeley, Alameda, Ban Rafael, and San Mateo, and many smaller towns and villages. These cities, which have a population aggregating about 750,000, together form the largest and most important center of commercial and industrial activity on the west coast of the United States. The natural advantages afforded by a great harbor, where the railways from the east meet the ships from all ports of the world, have determined the site of a flourishing cosmopolitan, commercial city on the shores of San Francisco Bay. The bay is encircled by hilly and mountainous country diversified by fertile valley lands and divides the territory mapped into two rather contrasted parts, the western part being again divided by the Golden Gate. It will therefore be convenient to sketch the geographic features under four headings (1) the area east of San Francisco Bay; (2) the San Francisco Peninsula; (3) the Marin Peninsula; (4) San Francisco Bay. (See fig. 2.)

  6. [AIMS65 score validation for upper gastrointestinal bleeding in the National Hospital Cayetano Heredia].

    Science.gov (United States)

    Aguilar Sánchez, Víctor; Bravo Paredes, Eduar Alban; Pinto Valdivia, José Luis; Valenzuela Granados, Vanessa; Espinoza-Rios, Jorge Luis

    2015-01-01

    To validate the score AIMS65 in patients with upper gastrointestinal bleeding, in terms of mortality and rebleeding a 30-day event. Patients included were those with higher age to 18 years attending the Hospital Nacional Cayetano Heredia during the period May 2013 to December 2014, by upper gastrointestinal bleeding. Data were analyzed using ROC curve (Receiver Operating Characteristic) and the area was obtained under the curve (AUC) to properly qualify the score AIMS65. 209 patients were included, 66.03% were male, with an average age of 58.02 years. The mortality rate was 7.65%, the multiorgan failure the most common cause of death. Plus 3.82% of the patients had recurrent bleeding and 11% required a transfusion of more than 2 units of blood. When analyzing the ROC curve with AIMS65 and mortality score a value of 0.9122 is reported; identifying it as cutoff greater than or equal to 3 value in the score AIMS65 to discriminate patients at high risk of death, likewise the ROC curve was analyzed for recurrence of bleeding with a value of 0.6266 and the need to Transfusion of packed red blood cells over two a value of 0.7421. And it was determined the average hospital stay with a value of 4.8 days, however, no correlation was found with the score AIMS65. AIMS65 score is a good predictor of mortality, and is useful for predicting the need for transfusion of more than 2 globular packages. However it is not a good predictor for recurrence of bleeding, or hospital stay.

  7. We are caught up in the inertia of an era of cheap energy, but we shall soon be faced with the frightening flip side on the coin. Interview with Cayetano Lopez Martinez, director of energy at Ciemat; Estamos en la inercia de una epoca de energia barata pero pronto veremos la cara mas temible del problema

    Energy Technology Data Exchange (ETDEWEB)

    Bayo, I. F.

    2008-07-01

    A physicist with a long history of research and an analyst of the worlds energy situation, Cayetano Lopez reflects on the current and future problems of meeting growing worldwide energy demands and looks at alternatives to the current dependence on fossil fuels. (Author)

  8. Depresión en el adulto mayor: Estudio de una serie de pacientes de consultorio externo de medicina en el Hospital Nacional Cayetano Heredia

    Directory of Open Access Journals (Sweden)

    José Capuñay Chafloque

    1996-10-01

    Full Text Available Objetivo: Determinar la prevalencia de síntomas depresivos y de la depresión mayor en el adulto mayor. Material y métodos: Se realizó un estudio prospectivo y transversal tipo entrevista de carácter descriptivo en pacientes adultos mayores que acudieron a la consulta ambulatoria de medicina del Hospital Nacional Cayetano Heredia, entre abril y mayo de 1995. Resultados: Se encontró que 75% presentaba algún síntoma depresivo y el 8.3% de pacientes tenían depresión mayor según DSMIV. Los principales síntomas depresivos fueron estado de ánimo depresivo, trastorno del sueño y perdida de energía. Además se realizó revisión de la literatura sobre el tema de depresión en adultos mayores. (Rev Med Hered 1996; 7: 172-177.

  9. 75 FR 38412 - Safety Zone; San Diego POPS Fireworks, San Diego, CA

    Science.gov (United States)

    2010-07-02

    ...-AA00 Safety Zone; San Diego POPS Fireworks, San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary... waters of San Diego Bay in support of the San Diego POPS Fireworks. This safety zone is necessary to... San Diego POPS Fireworks, which will include fireworks presentations conducted from a barge in San...

  10. Micosis ganglionar: reporte de 7 casos en el Hospital Nacional Cayetano Heredia Lima-Perú y revisión de la literatura

    Directory of Open Access Journals (Sweden)

    Fernando Osores Plenge

    2004-10-01

    Full Text Available Objetivos: Describir las características clínicas, micológicas e histopatológicas de una serie de pacientes con micosis ganglionar y determinar si las afecciones ganglionares por hongos o micosis ganglionares pueden imitar otras patologías ganglionares infecciosas y no infecciosas. Material y Métodos: Se evaluaron 154 pacientes atendidos en el Departamento de enfermedades infecciosas y transmisibles del Hospital Nacional Cayetano Heredia de Lima entre enero del 2003 y enero del 2004. Estos pacientes participaron en un estudio de validación de una prueba diagnóstica para tuberculosis ganglionar pero tuvieron un diagnóstico definido de micosis ganglionar. Resultados: De 154 pacientes con linfadenopatía evaluados durante el tiempo de estudio, 7 tuvieron micosis ganglionar, dos de ellos eran pacientes inmunocompetentes y los cinco restantes inmunosuprimidos, uno por linfoma y los otros por VIH. Conclusiones: Las afecciones ganglionares por hongos o micosis ganglionares pueden ser grandes imitadoras de otras patologías ganglionares infecciosas y no infecciosas. (Rev Med Hered 2004;15:211-217.

  11. Fracturas de tibia: tratamiento con clavo intramedular no fresado (UTN. Experiencia en el Hospital Nacional Cayetano Heredia

    Directory of Open Access Journals (Sweden)

    Carlos Ruiz Semba

    2004-04-01

    Full Text Available Objetivo: Determinar la utilidad del uso del clavo sólido intramedular no fresado (UTN en el tratamiento de las fracturas diafisiarias de tibia cerradas, expuestas y en seudoartrosis. Material y métodos: Se realizó un estudio de cohorte prospectivo y longitudinal en 12 pacientes con fractura diafisiaria de tibia tratados en el servicio de traumatología del Hospital Nacional Cayetano Heredia desde febrero 2000 hasta junio del 2001. La técnica usada para colocar el UTN fue la descrita en el Manual de Técnicas Quirúrgicas de la AO. El tiempo de seguimiento total fue de 1 año. Resultados: La consolidación con el uso de este clavo se dio en promedio a las 16 semanas, no presentándose ningún caso de no unión. A pesar de que algunos de nuestros pacientes presentaron lesiones en piel y tejidos blandos, no observamos infecciones superficiales ni profundas. Por otro lado el movimiento de la rodilla, tobillo y articulación subtalar, se inicio en el postoperatorio inmediato, logrando los pacientes hasta el momento un rango articular normal. Conclusiones: El Clavo Intramedular no fresado, es una buena alternativa en el tratamiento quirúrgico de las fracturas diafisiarias de tibia tanto cerradas y expuestas de Iº grado, así como en seudoartrosis, debido a todas las ventajas y buenos resultados obtenidos.(Rev Med Hered 2004; 15:70-75.

  12. 78 FR 19103 - Safety Zone; Spanish Navy School Ship San Sebastian El Cano Escort; Bahia de San Juan; San Juan, PR

    Science.gov (United States)

    2013-03-29

    ...-AA00 Safety Zone; Spanish Navy School Ship San Sebastian El Cano Escort; Bahia de San Juan; San Juan... temporary moving safety zone on the waters of Bahia de San Juan during the transit of the Spanish Navy... Channel entrance, and to protect the high ranking officials on board the Spanish Navy School Ship San...

  13. Compact High Resolution SANS using very cold neutrons (VCN-SANS)

    International Nuclear Information System (INIS)

    Kennedy, S.; Yamada, M.; Iwashita, Y.; Geltenbort, P.; Bleuel, M.; Shimizu, H.

    2011-01-01

    SANS (Small Angle Neutron Scattering) is a popular method for elucidation of nano-scale structures. However science continually challenges SANS for higher performance, prompting exploration of ever-more exotic and expensive technologies. We propose a compact high resolution SANS, using very cold neutrons, magnetic focusing lens and a wide-angle spherical detector. This system will compete with modern 40 m pinhole SANS in one tenth of the length, matching minimum Q, Q-resolution and dynamic range. It will also probe dynamics using the MIEZE method. Our prototype lens (a rotating permanent-magnet sextupole), focuses a pulsed neutron beam over 3-5 nm wavelength and has measured SANS from micelles and polymer blends. (authors)

  14. 76 FR 45693 - Safety Zone; San Diego POPS Fireworks, San Diego, CA

    Science.gov (United States)

    2011-08-01

    ...-AA00 Safety Zone; San Diego POPS Fireworks, San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary... San Diego Bay in support of the San Diego POPS Fireworks. This safety zone is necessary to provide for... of the waterway during scheduled fireworks events. Persons and vessels will be prohibited from...

  15. Detección de Malpighamoeba mellifcae (Protista: Amoebozoa en Apis mellifera (Hymenoptera: Apidaede Argentina Detection of Malpighamoeba mellifcae (Protista: Amoebozoa in Apis mellifera (Hymenoptera: Apidae of Argentina

    Directory of Open Access Journals (Sweden)

    Santiago Plischuk

    2010-12-01

    Full Text Available Debido a su rol como polinizador y productor de miel, la abeja Apis mellifera L. es considerado un insecto beneficioso. Si bien Argentina juega un papel de liderazgo en la producción de miel, existe un considerable vacío en el conocimiento acerca de las enfermedades de etiología protista que afectan las abejas en el país. La ameba Malpighamoeba mellificae Prell es un protista entomopatógeno que invade los túbulos de Malpighi de las abejas e interfiere con el proceso de excreción, debilitando al huésped y posiblemente facilitando la acción de otros patógenos. En esta contribución se presentan los primeros hallazgos de M. mellificae en Argentina y se brindan datos iniciales acerca de su frecuencia, intensidad de las infecciones, y co-ocurrencia con Nosema sp. Malpighamoeba mellificae se halló en dos de 36 localidades prospectadas: San Cayetano, al Sur de la provincia de Buenos Aires y San Carlos de Bariloche, en el Oeste de la provincia de Río Negro.Due to its role as a pollinator and honey producer, the honey bee Apis mellifera L. is considered a beneficial insect. Although Argentina plays a leading role in honey production, there is a considerable gap in knowledge regarding protistan diseases that affect honey bees in the country. The amoeba Malpighamoeba mellificae Prell is an entomopathogenic protist that invades the Malpighian tubules of honey bees and interferes with the excretory process, debilitating the host and possibly facilitating the action of other pathogens. In this contribution, we present the first reports of M. mellificae in Argentina, and provide some initial data about its frecuency, infection intensity, and co-occurrence with Nosema sp. Malpighamoeba mellificae was found in two out of 36 localities surveyed: San Cayetano, in southern Buenos Aires province, and San Carlos de Bariloche, in western Río Negro province.

  16. 33 CFR 165.754 - Safety Zone: San Juan Harbor, San Juan, PR.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone: San Juan Harbor, San Juan, PR. 165.754 Section 165.754 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND... Zone: San Juan Harbor, San Juan, PR. (a) Regulated area. A moving safety zone is established in the...

  17. Is an elementary particle really: (i) a particle? (ii) elementary?

    Indian Academy of Sciences (India)

    First page Back Continue Last page Overview Graphics. Is an elementary particle really: (i) a particle? (ii) elementary? Over centuries, naïve notions about this have turned out incorrect. Particles are not really pointlike. The word elementary is not necessarily well-defined. Notes:

  18. Elementary school on the move– moving in elementary school

    Directory of Open Access Journals (Sweden)

    Reiner Hildebrandt-Stramann

    2008-06-01

    Full Text Available Elementary school in Germany has changed during the last five years because, among other reasons, movement has entered it. The title's pun calls attention for two lines of work that characterize school pedagogy contemporary discussion. One of these lines is related to the last 15 years changing process at elementary school: it states that elementary school must be a learning and living place for children. The other line is related to movement pedagogy processes, which has been achieving higher and higher dimensions. Elementary school must be seen from movement point of view and must be transformed in a place for movement.

  19. Minería, conflicto y mediadores locales: Minera San Xavier en Cerro de San Pedro, México Mineira, conflito e mediadores locais: Minera San Xavier em Cerro de San Pedro Mining, conflict and local brokers: Minera San Xavier in Cerro de San Pedro

    Directory of Open Access Journals (Sweden)

    Hernán Horacio Schiaffini

    2011-12-01

    Full Text Available Este trabajo indaga en las instancias de mediación que intervienen en la articulación de procesos económicos de gran escala y su puesta en práctica local. Basándonos en el conflicto que se produjo en el Municipio de Cerro de San Pedro (San Luis Potosí, México entre la empresa Minera San Xavier y el Frente Amplio Opositor (FAO a la misma, aplicamos el método etnográfico con el objetivo de describir las estructuras locales de mediación política y analizar sus prácticas y racionalidad. Intentamos demostrar así la importancia de los factores políticos locales en las vinculaciones entre estado, empresa y población.Este trabalho indaga nas instâncias de mediação que intervêm em processos econômicos de grande escala e sua posta em prática local. Baseando-nos no conflito no Cerro de San Pedro (San Luis Potosí, México entre a empresa Minera San Xavier e a Frente Amplio Opositor (FAO aplicamos o método etnográfico pra descrever as estruturas de mediação política locais e analisar suas práticas e racionalidade. Tenta-se demonstrar assim a importância dos fatores políticos locais nas vinculações entre estado, empresa e população.This paper investigates in instances of mediation involved in large-scale economic processes and local implementation. Analyzing the conflict in Cerro de San Pedro (San Luis Potosí, México among San Xavier mining company and the Frente Amplio Opositor (FAO, it applies an ethnographic approach to describe the local structures of political mediation and its practices and rationality. The work shows the relevance of local factors in the relationships between State, company and people.

  20. Elementary Mathematics Leaders

    Science.gov (United States)

    Fennell, Francis; Kobett, Beth McCord; Wray, Jonathan A.

    2013-01-01

    Elementary school mathematics leaders often come to the realization that their position, however titled and determined, although dedicated to addressing needs in math teaching and learning, also entails and directly involves leadership. Elementary school math specialists/instructional leaders (referenced here as elementary mathematics leaders, or…

  1. Maternal Attitudes and Behaviors Regarding Feeding Practices in Elementary School-Aged Latino Children: A Pilot Qualitative Study on the Impact of the Cultural Role of Mothers in the US-Mexican Border Region of San Diego, California.

    Science.gov (United States)

    Martinez, Suzanna M; Rhee, Kyung; Blanco, Estela; Boutelle, Kerri

    2015-05-01

    This study aimed to explore the attitudes and behaviors of Latino mothers around feeding their children. Using qualitative methods, we conducted four focus groups in Spanish with 41 Latino mothers of elementary school-age children in San Diego County, CA. Latino mothers' mean age was 41 years; 90% were foreign-born; and 74% had a high school education or less. We explored cultural viewpoints around feeding and cooking and feeding strategies used. Focus groups were analyzed based on a priori and emergent themes. The following themes around feeding emerged: feeding attitudes central to the maternal responsibility of having well-fed children and feeding behaviors that centered on cooking methods, supportive behaviors, and reinforcement strategies for "eating well." These findings increase our understanding of the Latino maternal role to feed children and can help to inform more culturally appropriate research to effectively address nutritional issues and obesity prevention in Latino children. Copyright © 2015 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.

  2. 76 FR 1386 - Safety Zone; Centennial of Naval Aviation Kickoff, San Diego Bay, San Diego, CA

    Science.gov (United States)

    2011-01-10

    ...-AA00 Safety Zone; Centennial of Naval Aviation Kickoff, San Diego Bay, San Diego, CA AGENCY: Coast... zone on the navigable waters of San Diego Bay in San Diego, CA in support of the Centennial of Naval... February 12, 2010, the Centennial of Naval Aviation Kickoff will take place in San Diego Bay. In support of...

  3. San Marino.

    Science.gov (United States)

    1985-02-01

    San Marino, an independent republic located in north central Italy, in 1983 had a population of 22,206 growing at an annual rate of .9%. The literacy rate is 97% and the infant mortality rate is 9.6/1000. The terrain is mountainous and the climate is moderate. According to local tradition, San Marino was founded by a Christian stonecutter in the 4th century A.D. as a refuge against religious persecution. Its recorded history began in the 9th century, and it has survived assaults on its independence by the papacy, the Malatesta lords of Rimini, Cesare Borgia, Napoleon, and Mussolini. An 1862 treaty with the newly formed Kingdom of Italy has been periodically renewed and amended. The present government is an alliance between the socialists and communists. San Marino has had its own statutes and governmental institutions since the 11th century. Legislative authority at present is vested in a 60-member unicameral parliament. Executive authority is exercised by the 11-member Congress of State, the members of which head the various administrative departments of the goverment. The posts are divided among the parties which form the coalition government. Judicial authority is partly exercised by Italian magistrates in civil and criminal cases. San Marino's policies are tied to Italy's and political organizations and labor unions active in Italy are also active in San Marino. Since World War II, there has been intense rivalry between 2 political coalitions, the Popular Alliance composed of the Christian Democratic Party and the Independent Social Democratic Party, and the Liberty Committee, coalition of the Communist Party and the Socialist Party. San Marino's gross domestic product was $137 million and its per capita income was $6290 in 1980. The principal economic activities are farming and livestock raising, along with some light manufacturing. Foreign transactions are dominated by tourism. The government derives most of its revenue from the sale of postage stamps to

  4. San Francisco District Laboratory (SAN)

    Data.gov (United States)

    Federal Laboratory Consortium — Program CapabilitiesFood Analysis SAN-DO Laboratory has an expert in elemental analysis who frequently performs field inspections of materials. A recently acquired...

  5. FACTORES ASOCIADOS A SÍNDROME DE ASPIRACIÓN MECONIAL EN EL HOSPITAL JOSÉ CAYETANO HEREDIA PIURA-PERÚ

    Directory of Open Access Journals (Sweden)

    Nelson David Purizaca Rosillo

    2011-01-01

    Full Text Available Objetivo: Determinar los principales factores de riesgo en recién nacidos asociados a la presencia de síndrome de aspiración meconial (SAM. Métodos: Estudio de casos y controles realizado en el Hospital José Cayetano Heredia EsSALUD - Piura. La población estuvo conformada por el registro de las historias clínicas de los años 2009-2011. Se definió como caso a los recién nacidos con diagnóstico de SAM y como controles a los 3 recién nacidos siguientes inmediatos al caso que hayan presentado líquido amniótico meconial en el parto. Las variables consideradas fueron las características del líquido meconial, datos del recién nacido (género, peso al nacer, edad gestacional, apgar al minuto y frecuencia cardiaca, datos del parto(tipo de parto, presencia de patología obstétrica y datos de la madre(edad, paridad y grado de instrucción. Se utilizó el OR con un intervalo de confianza del 95% para la medición de riesgo, se aplicó la prueba de chi cuadrado. Para el análisis estadístico se utilizó el software SPSS 18.0. Resultados: Las variables con significancia estadística asociados a SAM fueron: presencia de líquido amniótico meconial espeso (OR=12, IC95% 3.91 - 36.83, Apgar 4 (OR=6.18, IC95% 1.34-28.48. Conclusión: Los factores de riesgo asociados a la presencia de SAM fueron: líquido meconial espeso, Apgar 4. Se recomienda un mayor registro de todos los datos no sólo del recién nacido, sino también del parto y la madre.

  6. 76 FR 9709 - Water Quality Challenges in the San Francisco Bay/Sacramento-San Joaquin Delta Estuary

    Science.gov (United States)

    2011-02-22

    ... Water Quality Challenges in the San Francisco Bay/Sacramento-San Joaquin Delta Estuary AGENCY... the San Francisco Bay/ Sacramento-San Joaquin Delta Estuary (Bay Delta Estuary) in California. EPA is... programs to address recent significant declines in multiple aquatic species in the Bay Delta Estuary. EPA...

  7. About limit masses of elementary particles

    International Nuclear Information System (INIS)

    Ibadova, U.R.

    2002-01-01

    The simple examples of spontaneous breaking of various symmetries for the scalar theory with fundamental mass have been considered. Higgs' generalizations on 'fundamental masses' that was introduced into the theory on a basis of the five-dimensional de Sitter space. The connection among 'fundamental mass', 'Planck's mass' and 'maxim ons' has been found. Consequently, the relationship among G-gravitational constant and other universal parameters can be established. The concept the mass having its root from deep antiquity (including Galilee's Pis sans experiment, theoretical research of the connection of mass with the Einstein's energy etc.) still remains fundamental. Every theoretical and experimental research in classical physics and quantum physics associated with mass is of step to the discernment of Nature. Besides of mass, the other fundamental constants such as Planck's constant ℎ and the speed of light also play the most important role in the modern theories. The first one related to quantum mechanics and the second one is related to the theory of relativity. Nowadays the properties and interactions of elementary particles can be described more or less adequately in terms of local fields that are affiliated with the lowest representations of corresponding compact groups of symmetry. It is known that the mass of any body is composed of masses of its comprising elementary particles. The mass of elementary particles is the Casimir operator of the non-compact Poincare group, and those representations of the given group, that are being used in Quantum Field Theory (QFT), and it can take any values in the interval of 0≤m≤∞. Two particles, today referred to as elementary particles, can have masses; distinct one from another by many orders. For example, vectorial bosons with the mass of ∼10 15 GeV take place in general relativity theory modules, whereas the mass of an electron is only ∼0.5·10 3 GeV. Formally, the standard QFT remains logical in a case

  8. 33 CFR 165.776 - Security Zone; Coast Guard Base San Juan, San Juan Harbor, Puerto Rico

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zone; Coast Guard Base San Juan, San Juan Harbor, Puerto Rico 165.776 Section 165.776 Navigation and Navigable Waters COAST... Guard District § 165.776 Security Zone; Coast Guard Base San Juan, San Juan Harbor, Puerto Rico (a...

  9. Enhanced Preliminary Assessment Report: Presidio of San Francisco Military Reservation, San Francisco, California

    Science.gov (United States)

    1989-11-01

    CAD981415656 Filmore Steiner Bay San Francisco 24 PG&E Gas Plant SanFran 502-IG CAD981415714 Bay North Point Buchanan Laguna 25 PG&E Gas Plant SanFran 502-1H...76-ioV /5,JO /0.7 /,230 PSF Water PSF, Main U.N. Lagunda Honda Analvte Plant Clearwell Reservoir Plaza Reservoi- Chlordane inetab. ə.2 ə.2 (1.2 ə.2

  10. A case for historic joint rupture of the San Andreas and San Jacinto faults.

    Science.gov (United States)

    Lozos, Julian C

    2016-03-01

    The San Andreas fault is considered to be the primary plate boundary fault in southern California and the most likely fault to produce a major earthquake. I use dynamic rupture modeling to show that the San Jacinto fault is capable of rupturing along with the San Andreas in a single earthquake, and interpret these results along with existing paleoseismic data and historic damage reports to suggest that this has likely occurred in the historic past. In particular, I find that paleoseismic data and historic observations for the ~M7.5 earthquake of 8 December 1812 are best explained by a rupture that begins on the San Jacinto fault and propagates onto the San Andreas fault. This precedent carries the implications that similar joint ruptures are possible in the future and that the San Jacinto fault plays a more significant role in seismic hazard in southern California than previously considered. My work also shows how physics-based modeling can be used for interpreting paleoseismic data sets and understanding prehistoric fault behavior.

  11. A case for historic joint rupture of the San Andreas and San Jacinto faults

    Science.gov (United States)

    Lozos, Julian C.

    2016-01-01

    The San Andreas fault is considered to be the primary plate boundary fault in southern California and the most likely fault to produce a major earthquake. I use dynamic rupture modeling to show that the San Jacinto fault is capable of rupturing along with the San Andreas in a single earthquake, and interpret these results along with existing paleoseismic data and historic damage reports to suggest that this has likely occurred in the historic past. In particular, I find that paleoseismic data and historic observations for the ~M7.5 earthquake of 8 December 1812 are best explained by a rupture that begins on the San Jacinto fault and propagates onto the San Andreas fault. This precedent carries the implications that similar joint ruptures are possible in the future and that the San Jacinto fault plays a more significant role in seismic hazard in southern California than previously considered. My work also shows how physics-based modeling can be used for interpreting paleoseismic data sets and understanding prehistoric fault behavior. PMID:27034977

  12. 76 FR 10945 - San Luis Trust Bank, FSB, San Luis Obispo, CA; Notice of Appointment of Receiver

    Science.gov (United States)

    2011-02-28

    ... DEPARTMENT OF THE TREASURY Office of Thrift Supervision San Luis Trust Bank, FSB, San Luis Obispo, CA; Notice of Appointment of Receiver Notice is hereby given that, pursuant to the authority... appointed the Federal Deposit Insurance Corporation as sole Receiver for San Luis Trust Bank, FSB, San Luis...

  13. Elementary Preservice Teachers' and Elementary Inservice Teachers' Knowledge of Mathematical Modeling

    Science.gov (United States)

    Schwerdtfeger, Sara

    2017-01-01

    This study examined the differences in knowledge of mathematical modeling between a group of elementary preservice teachers and a group of elementary inservice teachers. Mathematical modeling has recently come to the forefront of elementary mathematics classrooms because of the call to add mathematical modeling tasks in mathematics classes through…

  14. 76 FR 22809 - Safety Zone; Bay Ferry II Maritime Security Exercise; San Francisco Bay, San Francisco, CA

    Science.gov (United States)

    2011-04-25

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG-2011-0196] RIN 1625-AA00 Safety Zone; Bay Ferry II Maritime Security Exercise; San Francisco Bay, San Francisco, CA AGENCY... Security Exercise; San Francisco Bay, San Francisco, CA. (a) Location. The limits of this safety zone...

  15. Mujeres con VIH-SIDA en el Hospital Nacional Cayetano Heredia en Lima, Perú

    Directory of Open Access Journals (Sweden)

    Lely Solari Zerpa

    1999-04-01

    Full Text Available Objetivo: Describir las características epidemiológicas y clínicas del grupo de mujeres infectadas con el Virus de la Inmunodeficiencia Humana (VIH que fueron atendidas en el Hospital Nacional Cayetano Heredia de Enero de 1989 a Diciembre de 1996. Material y Métodos: Se hizo una revisión retrospectiva de sus fichas epidemiológicas e historias clínicas. Se utilizó la clasificación de los Centros de Control de Enfermedades (CDC para infección por el VIH (Estadíos I-IV. Resultados: Se incluyó 236 mujeres, de 17 a 60 años, con una edad media de 30.4 años. El número de mujeres diagnosticadas por año aumentó de 5 en 1989 a 63 en 1996. La vía probable de adquirir la infección fue por relaciones heterosexuales en 212 pacientes (90.2%. Refirieron haber tenido una sola pareja sexual en su vida 113 (47.8%. Hubo 4 (1.6% de trabajadoras sexuales y no hubo drogadictas por vía endovenosa. Habían tenido otras Enfermedades de Transmisión Sexual (ETSs el 23.4% y éstas fueron más prevalentes en mujeres que tenían prácticas sexuales riesgosas (p=0.005. Tuvieron diagnóstico de Síndrome de Inmunodeficiencia Adquirida (SIDA 69 mujeres. La Condición Definitoria de SIDA más frecuente Síndrome Consuntivo en 23 mujeres (33.3%. Hubo 19 muertes en los años de estudio. La sobrevida media en estadío SIDA fue de 10.6 meses y la causa de muerte más frecuente fue Tuberculosis y Neumonía por Pneumocystis carinii. Conclusiones: El hecho de tener una transmisión predominantemente heterosexual y de que haya un alto porcentaje de mujeres con pocas parejas sexuales nos hace suponer que es probablemente la conducta sexual riesgosa de sus parejas lo que expone a las mujeres a la infección por el VIH. Debemos resaltar la importancia de una adecuada educación a las mujeres que comienzan a tener relaciones, de los riesgos que esto implica y la difusión del uso de condones para prevenir esta infección. ( Rev Med Hered 1999; 10:62-68 .

  16. The San Bernabe power substation; La subestacion San Bernabe

    Energy Technology Data Exchange (ETDEWEB)

    Chavez Sanudo, Andres D. [Luz y Fuerza del Centro, Mexico, D. F. (Mexico)

    1997-12-31

    The first planning studies that gave rise to the San Bernabe substation go back to year 1985. The main circumstance that supports this decision is the gradual restriction for electric power generation that has been suffering the Miguel Aleman Hydro System, until its complete disappearance, to give priority to the potable water supply through the Cutzamala pumping system, that feeds in an important way Mexico City and the State of Mexico. In this document the author describes the construction project of the San Bernabe Substation; mention is made of the technological experiences obtained during the construction and its geographical location is shown, as well as the one line diagram of the same [Espanol] Los primeros estudios de planeacion que dieron origen a la subestacion San Bernabe se remontan al ano de 1985. La circunstancia principal que soporta esta decision es la restriccion paulatina para generar energia que ha venido experimentando el Sistema Hidroelectrico Miguel Aleman, hasta su desaparicion total, para dar prioridad al suministro de agua potable por medio del sistema de bombeo Cutzamala, que alimenta en forma importante a la Ciudad de Mexico y al Estado de Mexico. En este documento el autor describe el proyecto de construccion de la subestacion San Bernabe; se mencionan las experiencias tecnologicas obtenidas durante su construccion y se ilustra su ubicacion geografica, asi como un diagrama unifilar de la misma

  17. Description of gravity cores from San Pablo Bay and Carquinez Strait, San Francisco Bay, California

    Science.gov (United States)

    Woodrow, Donald L.; John L. Chin,; Wong, Florence L.; Fregoso, Theresa A.; Jaffe, Bruce E.

    2017-06-27

    Seventy-two gravity cores were collected by the U.S. Geological Survey in 1990, 1991, and 2000 from San Pablo Bay and Carquinez Strait, California. The gravity cores collected within San Pablo Bay contain bioturbated laminated silts and sandy clays, whole and broken bivalve shells (mostly mussels), fossil tube structures, and fine-grained plant or wood fragments. Gravity cores from the channel wall of Carquinez Strait east of San Pablo Bay consist of sand and clay layers, whole and broken bivalve shells (less than in San Pablo Bay), trace fossil tubes, and minute fragments of plant material.

  18. 78 FR 34123 - Notice of Inventory Completion: San Francisco State University NAGPRA Program, San Francisco, CA

    Science.gov (United States)

    2013-06-06

    ... completion of an inventory of human remains and associated funerary objects under the control of the San....R50000] Notice of Inventory Completion: San Francisco State University NAGPRA Program, San Francisco, CA... NAGPRA Program has completed an inventory of human remains and associated funerary objects, in...

  19. 78 FR 21403 - Notice of Inventory Completion: San Francisco State University NAGPRA Program, San Francisco, CA

    Science.gov (United States)

    2013-04-10

    ... completion of an inventory of human remains and associated funerary objects under the control of the San....R50000] Notice of Inventory Completion: San Francisco State University NAGPRA Program, San Francisco, CA... NAGPRA Program has completed an inventory of human remains and associated funerary objects, in...

  20. Elementary Environmental Activities.

    Science.gov (United States)

    Larson, Robert J.

    This guide presents suggestions for field trips, out-of-doors activities, material for centers, and individualized activities in the teaching of elementary school science and particularly environmental education at the elementary level. The guide includes a section on preparation and procedures for conducting field trips, including sample…

  1. 75 FR 15611 - Safety Zone; United Portuguese SES Centennial Festa, San Diego Bay, San Diego, CA

    Science.gov (United States)

    2010-03-30

    ...-AA00 Safety Zone; United Portuguese SES Centennial Festa, San Diego Bay, San Diego, CA AGENCY: Coast... navigable waters of the San Diego Bay in support of the United Portuguese SES Centennial Festa. This... Centennial Festa, which will include a fireworks presentation originating from a tug and barge combination in...

  2. Performance of BATAN-SANS instrument

    Energy Technology Data Exchange (ETDEWEB)

    Ikram, Abarrul; Insani, Andon [National Nuclear Energy Agency, P and D Centre for Materials Science and Technology, Serpong (Indonesia)

    2003-03-01

    SANS data from some standard samples have been obtained using BATAN-SANS instrument in Serpong. The experiments were performed for various experimental set-ups that involve different detector positions and collimator lengths. This paper describes the BATAN-SANS instrument briefly as well as the data taken from those experiments and followed with discussion of the results concerning the performance and calibration of the instrument. The standard samples utilized in these experiments include porous silica, polystyrene-poly isoprene, silver behenate, poly ball and polystyrene-poly (ethylene-alt-propylene). Even though the results show that BATAN-SANS instrument is in good shape, but rooms for improvements are still widely open especially for the velocity selector and its control system. (author)

  3. Pronóstico geoquímico de mineralización sulfurosa en el distrito metalogénico Dora-Francisco, Cuba Occidental

    Directory of Open Access Journals (Sweden)

    José F. Lastra-Rivero

    2001-03-01

    Full Text Available La recopilación de la información geólogo-geoquímica preliminar existente sobre el Distrito Metalogénico Dora-Francisco, ha servido de base para los trabajos de reconocimiento realizados por la Asociación Económica Holmer Gold Mines Limited-Geominera S.A. durante el periodo 1994-1998. Con el objetivo de aclarar los rasgos fundamentales que caracterizan el alojamiento de yacimientos hidrotermales y, de esa manera, ofrecer un pronóstico goquímico veraz, es propuesta una metodología en la que se integran las técnicas de clasificación con aprendizaje (programas expertos y la estadística multivariada (análisis de componentes principales. Los resultados del procesamiento de la información litogeoquímica disponible se exponen como mapas geoquímicos patrones para el pronóstico de mineralización sulfurosa (cuprífera y polimetálica. La superposición de éstos con el mapa geológico posibilita apreciar relaciones entre las anomalías litogeoquímicas complejas descubiertas y determinadas secuencias litológicas de la formación San Cayetano, lo cual contribuye favorablemente a corroborar la especialización geoquímica del Distrito Metalogénico Dora-Francisco. Como resultado se proponen sectores de prospección con órdenes de prioridad deferenciadores que responden a la integración de las categorías prospectivas asignadas, la correspondencia con secuencias de la formación San Cayetano favorables para alojar mineralización sulfurosa y la continuidad espacial de las diferentes Unidades de Información Básicas definidas.

  4. A case for historic joint rupture of the San Andreas and San Jacinto faults

    OpenAIRE

    Lozos, Julian C.

    2016-01-01

    The San Andreas fault is considered to be the primary plate boundary fault in southern California and the most likely fault to produce a major earthquake. I use dynamic rupture modeling to show that the San Jacinto fault is capable of rupturing along with the San Andreas in a single earthquake, and interpret these results along with existing paleoseismic data and historic damage reports to suggest that this has likely occurred in the historic past. In particular, I find that paleoseismic data...

  5. Departmentalize Elementary Schools

    Science.gov (United States)

    Chan, Tak Cheung; Jarman, Delbert

    2004-01-01

    In elementary schools today, most students receive their education in a single classroom from one teacher who is responsible for teaching language arts, social studies, math, and science. The self-contained classroom organization is predicated on the assumption that an elementary school teacher is a Jack (or Jill)-of-all-trades who is equally…

  6. Elementary particles

    International Nuclear Information System (INIS)

    Prasad, R.

    1984-01-01

    Two previous monographs report on investigations into the extent to which a unified field theory can satisfactorily describe physical reality. The first, Unified field Theory, showed that the paths within a non-Riemannian space are governed by eigenvalue equations. The second, Fundamental Constants, show that the field tensors satisfy sets of differential equations with solutions which represent the evolution of the fields along the paths of the space. The results from the first two monographs are used in this one to make progress on the theory of elementary particles. The five chapters are as follows - Quantum mechanics, gravitation and electromagnetism are aspects of the Unified theory; the fields inside the particle; the quadratic and linear theories; the calculation of the eigenvalues and elementary particles as stable configurations of interacting fields. It is shown that it is possible to construct an internal structure theory for elementary particles. The theory lies within the framework of Einstein's programme-to identify physical reality with a specified geometrical structure. (U.K.)

  7. San Marco C-2 (San Marco-4) Post Launch Report No. 1

    Science.gov (United States)

    1974-01-01

    The San Marco C-2 spacecraft, now designated San Marco-4, was successfully launched by a Scout vehicle from the San Marco Platform on 18 February 1974 at 6:05 a.m. EDT. The launch occurred 2 hours 50 minutes into the 3-hour window due co low cloud cover at the launch site. All spacecraft subsystems have been checked and are functioning normally. The protective caps for the two U.S. experiments were ejected and the Omegatron experiment activated on 19 February. The neutral mass spectrometer was activated as scheduled on 22 February after sufficient time to allow for spacecraft outgassing and to avoid the possibility of corona occurring. Both instruments are performing properly and worthwhile scientific data is being acquired.

  8. 77 FR 34988 - Notice of Inventory Completion: San Diego State University, San Diego, CA

    Science.gov (United States)

    2012-06-12

    .... ACTION: Notice. SUMMARY: San Diego State University Archeology Collections Management Program has... that believes itself to be culturally affiliated with the human remains and associated funerary objects may contact San Diego State University Archeology Collections Management Program. Repatriation of the...

  9. Lupus eritematoso sistémico en la Unidad de cuidados intensivos de medicina del Hospital Nacional Cayetano Heredia.

    Directory of Open Access Journals (Sweden)

    Sergio Vásquez Kunze

    2007-10-01

    Full Text Available Objetivos: Describir las características clínicas y factores pronósticos del Lupus Eritematoso Sistémico (LES en la Unidad de Cuidados Intensivos (UCI de Medicina del Hospital Nacional Cayetano Heredia (HNCH. Material y métodos: Colección retrospectiva de hallazgos clínicos y de laboratorio de historias clínicas de pacientes con LES en la UCI del HNCH en el periodo 1999-2004. Se hizo estudio estadístico descriptivo y análisis univariado para variables continuas y discretas. Se calculó el score APACHE II y se evaluó su significado pronóstico. Resultados: Hubo 26 pacientes con LES de los cuales se encontraron historias clínicas de 21 de ellos. La frecuencia de LES en la UCI del HNCH es de 1,49%, es la patología reumática más frecuente en UCI. La mortalidad fue de 57,69%. El motivo de admisión más frecuente fue insuficiencia respiratoria (52,4%, mayormente debido a causa infecciosa.Las variables que se asociaron significativamente a mortalidad fueron: velocidad de sedimentación globular (VSG alta, anemia severa, hipoalbuminemia severa, la relación presión arterial de oxígeno entre la fracción inspirada de oxígeno (PaFi < 200 al ingreso. El score APACHE II en el grupo de fallecidos fue significativamente más alto (19,9 (p < 0,01. La insuficiencia renal aguda que requirió hemodiálisis y la necesidad de ventilación mecánica se asociaron significativamente a mayor mortalidad. Conclusiones: El LES en la UCI del HNCH tiene una alta mortalidad, mayor que la reportada en estudios previos. Los factores de mal pronóstico fueron VSG alta, anemia severa, hipoalbuminemia severa, PaFi<200, score APACHE II alto, necesidad de hemodiálisis y de ventilación mecánica. (Rev Med Hered 2007;18: 192-199.

  10. Disseminating Evidence-Based Physical Education Practices in Rural Schools: The San Luis Valley Physical Education Academy.

    Science.gov (United States)

    Belansky, Elaine S; Cutforth, Nick; Kern, Ben; Scarbro, Sharon

    2016-09-01

    To address childhood obesity, strategies are needed to maximize physical activity during the school day. The San Luis Valley Physical Education Academy was a public health intervention designed to increase the quality of physical education and quantity of moderate to vigorous physical activity (MVPA) during physical education class. Elementary school physical education teachers from 17 schools participated in the intervention. They received SPARK curriculum and equipment, workshops, and site coordinator support for 2 years. A pre/post/post within physical education teacher design was used to measure intervention effectiveness. System for Observing Fitness Instruction Time (SOFIT) and a physical education teacher survey were collected 3 times. MVPA increased from 51.1% to 67.3% over the 2-year intervention resulting in approximately 14.6 additional hours of physical activity over a school year and 4662 kcal or 1.33 lbs. of weight gain prevention. More time was spent on skill drills and less time on classroom management and free play. The San Luis Valley Physical Education Academy succeeded in increasing rural, low-income students' physical activity. The multicomponent intervention contributed to the program's success. However, cost-effective approaches are needed to disseminate and implement evidencebased practices aimed at increasing students' physical activity during the school day.

  11. PERCEPTIONS OF THE ELEMENTARY SCHOOL COUNSELOR.

    Science.gov (United States)

    BRADEN, BILLY; AND OTHERS

    FACTORS ASSOCIATED WITH THE ROLE AND FUNCTION OF THE ELEMENTARY SCHOOL COUNSELOR AS THEY WERE PERCEIVED BY SELECTED ELEMENTARY SCHOOL COUNSELORS, ELEMENTARY SCHOOL PRINCIPALS, COUNSELOR EDUCATORS, AND STATE SUPERVISORS IN THE SOUTHERN ASSOCIATION FOR COUNSELOR EDUCATION AND SUPERVISION (SACES) REGION WERE IDENTIFIED. THREE INSTRUMENTS WERE…

  12. 78 FR 53243 - Safety Zone; TriRock San Diego, San Diego Bay, San Diego, CA

    Science.gov (United States)

    2013-08-29

    ... this rule because the logistical details of the San Diego Bay triathlon swim were not finalized nor... September 22, 2013. (c) Definitions. The following definition applies to this section: Designated...

  13. Preservice Elementary Teachers' Adaptation of Science Curriculum Materials for Inquiry-Based Elementary Science

    Science.gov (United States)

    Forbes, Cory T.

    2011-01-01

    Curriculum materials are important resources with which teachers make pedagogical decisions about the design of science learning environments. To become well-started beginning elementary teachers capable of engaging their students in inquiry-based science, preservice elementary teachers need to learn to use science curriculum materials…

  14. Elementary Atom Interaction with Matter

    OpenAIRE

    Mrowczynski, Stanislaw

    1998-01-01

    The calculations of the elementary atom (the Coulomb bound state of elementary particles) interaction with the atom of matter, which are performed in the Born approximation, are reviewed. We first discuss the nonrelativistic approach and then its relativistic generalization. The cross section of the elementary atom excitation and ionization as well as the total cross section are considered. A specific selection rule, which applies for the atom formed as positronium by particle-antiparticle pa...

  15. 34 CFR 300.13 - Elementary school.

    Science.gov (United States)

    2010-07-01

    ... 34 Education 2 2010-07-01 2010-07-01 false Elementary school. 300.13 Section 300.13 Education Regulations of the Offices of the Department of Education (Continued) OFFICE OF SPECIAL EDUCATION AND... DISABILITIES General Definitions Used in This Part § 300.13 Elementary school. Elementary school means a...

  16. 77 FR 59969 - Notice of Inventory Completion: San Francisco State University, Department of Anthropology, San...

    Science.gov (United States)

    2012-10-01

    ... Inventory Completion: San Francisco State University, Department of Anthropology, San Francisco, CA... Francisco State University, NAGPRA Program (formerly in the Department of Anthropology). The human remains... State University Department of Anthropology records. In the Federal Register (73 FR 30156-30158, May 23...

  17. 33 CFR 165.1182 - Safety/Security Zone: San Francisco Bay, San Pablo Bay, Carquinez Strait, and Suisun Bay, CA.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety/Security Zone: San... Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY... Areas Eleventh Coast Guard District § 165.1182 Safety/Security Zone: San Francisco Bay, San Pablo Bay...

  18. Connecting Scientists, College Students, Middle School Students & Elementary Students through Intergenerational Afterschool STEM Programming

    Science.gov (United States)

    Ali, N. A.; Paglierani, R.; Raftery, C. L.; Romero, V.; Harper, M. R.; Chilcott, C.; Peticolas, L. M.; Hauck, K.; Yan, D.; Ruderman, I.; Frappier, R.

    2015-12-01

    The Multiverse education group at UC Berkeley's Space Sciences Lab created the NASA-funded "Five Stars Pathway" model in which five "generations" of girls and women engage in science together in an afterschool setting, with each generation representing one stage in the pathway of pursuing a career in science, technology, engineering, or math (STEM). The five stages are: elementary-age students, middle-school-age students, undergraduate-level college students, graduate-level college students and professional scientists. This model was field-tested at two Girls Inc. afterschool locations in the San Francisco Bay Area and distributed to Girls Inc. affiliates and other afterschool program coordinators nationwide. This presentation will explore some of the challenges and success of implementing a multigenerational STEM model as well as distributing the free curriculum for interested scientists and college students to use with afterschool programs.

  19. SAN MICHELE. ENTRE CIELO Y MAR / San Michele, between sky and sea

    Directory of Open Access Journals (Sweden)

    Pablo Blázquez Jesús

    2012-11-01

    Full Text Available RESUMEN El cementerio es uno de los tipos arquitectónicos más profundos y metafóricos. El concurso para la ampliación del cementerio de San Michele, convocado en 1998 por la administración Municipal de Venecia, se convierte en un excelente campo de pruebas sobre el que poder analizar el contexto histórico en torno a esta tipología, y su relación con la ciudad y el territorio. El estudio de este caso concreto nos permite descubrir personajes, relaciones casuales y hallazgos que se despliegan a lo largo del texto. La historia del cementerio de San Michele es también la crónica de la transformación de la ciudad de Venecia y su Laguna. Interpretando este concurso como un instrumento de investigación, el objetivo del artículo es el de comprender la realidad contemporánea de la arquitectura funeraria a través de la isla de San Michele, Venecia, y las propuestas finalistas de Carlos Ferrater, Enric Miralles y David Chipperfield. Una historia bajo la cual se vislumbran claves que nos sirven para reflexionar acerca del cementerio contemporáneo, la ciudad y el territorio. SUMMARY The cemetery is one of the most profound and metaphorical kinds of architecture. The competition for the extension of the San Michele Cemetery, called in 1998 by the Venice municipal administration, is an excellent testing ground on which to analyse the historical context surrounding this type of architecture, and its relationship with the city and the region. The study of this particular case allows us to uncover characters, casual relationships and findings that unfold throughout the text. The history of the San Michele cemetery is also the chronicle of the transformation of the city of Venice and its Lagoon. Interpreting this competition as a research tool, the aim of the paper is to understand the contemporary reality of funerary architecture through the island of San Michele, Venice, and the finalist proposals of Carlos Ferrater, Enric Miralles and David

  20. Pleistocene Brawley and Ocotillo Formations: Evidence for initial strike-slip deformation along the San Felipe and San Jacinto fault zonez, Southern California

    Science.gov (United States)

    Kirby, S.M.; Janecke, S.U.; Dorsey, R.J.; Housen, B.A.; Langenheim, V.E.; McDougall, K.A.; Steeley, A.N.

    2007-01-01

    We examine the Pleistocene tectonic reorganization of the Pacific-North American plate boundary in the Salton Trough of southern California with an integrated approach that includes basin analysis, magnetostratigraphy, and geologic mapping of upper Pliocene to Pleistocene sedimentary rocks in the San Felipe Hills. These deposits preserve the earliest sedimentary record of movement on the San Felipe and San Jacinto fault zones that replaced and deactivated the late Cenozoic West Salton detachment fault. Sandstone and mudstone of the Brawley Formation accumulated between ???1.1 and ???0.6-0.5 Ma in a delta on the margin of an arid Pleistocene lake, which received sediment from alluvial fans of the Ocotillo Formation to the west-southwest. Our analysis indicates that the Ocotillo and Brawley formations prograded abruptly to the east-northeast across a former mud-dominated perennial lake (Borrego Formation) at ???1.1 Ma in response to initiation of the dextral-oblique San Felipe fault zone. The ???25-km-long San Felipe anticline initiated at about the same time and produced an intrabasinal basement-cored high within the San Felipe-Borrego basin that is recorded by progressive unconformities on its north and south limbs. A disconformity at the base of the Brawley Formation in the eastern San Felipe Hills probably records initiation and early blind slip at the southeast tip of the Clark strand of the San Jacinto fault zone. Our data are consistent with abrupt and nearly synchronous inception of the San Jacinto and San Felipe fault zones southwest of the southern San Andreas fault in the early Pleistocene during a pronounced southwestward broadening of the San Andreas fault zone. The current contractional geometry of the San Jacinto fault zone developed after ???0.5-0.6 Ma during a second, less significant change in structural style. ?? 2007 by The University of Chicago. All rights reserved.

  1. Do Elementary Particles Have an Objective Existence?

    OpenAIRE

    Nissenson, Bilha

    2007-01-01

    The formulation of quantum theory does not comply with the notion of objective existence of elementary particles. Objective existence independent of observation implies the distinguishability of elementary particles. In other words: If elementary particles have an objective existence independent of observations, then they are distinguishable. Or if elementary particles are indistinguishable then matter cannot have existence independent of our observation. This paper presents a simple deductio...

  2. Factores asociados a síndrome de aspiracion meconial en el hospital José Cayetano Heredia. Piura-Perú

    Directory of Open Access Journals (Sweden)

    Nelson David Purizaca Rosillo

    2012-09-01

    Full Text Available Objetivo: Determinar los principales factores de riesgo en recién nacidos asociados a la presencia de síndrome de aspiración meconial (SAM. Métodos: Estudio de casos y controles realizado en el Hospital José Cayetano Heredia EsSALUD – Piura. La población estuvo conformada por el registro de las historias clínicas de los años 2009-2011. Se definió como caso a los recién nacidos con diagnóstico de SAM y como controles a los 3 recién nacidos siguientes inmediatos al caso que hayan presentado líquido amniótico meconial en el parto. Las variables consideradas fueron las características del líquido meconial, datos del recién nacido (género, peso al nacer, edad gestacional, apgar al minuto y frecuencia cardiaca, datos del parto(tipo de parto, presencia de patología obstétrica y datos de la madre(edad, paridad y grado de instrucción. Se utilizó el OR con un intervalo de confianza del 95% para la medición de riesgo, se aplicó la prueba de chi cuadrado. Para el análisis estadístico se utilizó el software SPSS 18.0. Resultados: Las variables con significancia estadística asociados a SAM fueron: presencia de líquido amniótico meconial espeso (OR=12, IC95% 3.91 - 36.83, Apgar  7 (OR=22.48, IC95% 6.62 - 76.31 y número de partos > 4 (OR=6.18, IC95% 1.34-28.48. Conclusión: Los factores de riesgo asociados a la presencia de SAM fueron: líquido meconial espeso, Apgar 4. Se recomienda un mayor registro de todos los datos no sólo del recién nacido, sino también del parto y la madre.

  3. Vegetation - San Felipe Valley [ds172

    Data.gov (United States)

    California Natural Resource Agency — This Vegetation Map of the San Felipe Valley Wildlife Area in San Diego County, California is based on vegetation samples collected in the field in 2002 and 2005 and...

  4. Notes on elementary particle physics

    CERN Document Server

    Muirhead, William Hugh

    1972-01-01

    Notes of Elementary Particle Physics is a seven-chapter text that conveys the ideas on the state of elementary particle physics. This book emerged from an introductory course of 30 lectures on the subject given to first-year graduate students at the University of Liverpool. The opening chapter deals with pertinent terminologies in elementary particle physics. The succeeding three chapters cover the concepts of transition amplitudes, probabilities, relativistic wave equations and fields, and the interaction amplitude. The discussion then shifts to tests of electromagnetic interactions, particul

  5. El urbanismo de Santiago de Compostela : un plano con las plazuelas de San Martín y de San Miguel de 1709

    Directory of Open Access Journals (Sweden)

    Miguel Taín Guzmán

    1998-01-01

    Full Text Available El presente artículo está dedicado al estudio de un plano inédito de 1709 donde se representan las plazuelas de San Martín y de San Miguel, en el barrio intramuros de la Puerta de la Peña de Santiago de Compostela. Gracias al referido dibujo, analizo al detalle el entramado urbano de ambos espacios públicos y los edificios que los delimitan, particularmente la iglesia de San Martín Pinario, el desaparecido Palacio del Tribunal de la Santa Inquisición y la iglesia parroquial de San Miguel dos Agros.The article focuses on the study of a 1709 inpublished street plan of two squares —San Martín and San Miguel— in the Puerta de la Peña quarter (Santiago de Compostela. This oíd drawing shows the urban framework of both public spaces and also the buildings around: San Martín Pinario, the lost Palacio del Tribunal de la Santa Inquisición and the paroquial church of San Miguel de los Agros.

  6. 78 FR 57482 - Safety Zone; America's Cup Aerobatic Box, San Francisco Bay, San Francisco, CA

    Science.gov (United States)

    2013-09-19

    ...-AA00 Safety Zone; America's Cup Aerobatic Box, San Francisco Bay, San Francisco, CA AGENCY: Coast Guard... America's Cup air shows. These safety zones are established to provide a clear area on the water for... announced by America's Cup Race Management. ADDRESSES: Documents mentioned in this preamble are part of...

  7. Detección de Malpighamoeba mellificae (Protista: Amoebozoa en Apis mellifera (Hymenoptera: Apidae de Argentina

    Directory of Open Access Journals (Sweden)

    Santiago PLISCHUK

    2010-01-01

    Full Text Available Debido a su rol como polinizador y productor de miel, la abeja Apis mellifera L. es considerado un insecto beneficioso. Si bien Argentina juega un papel de liderazgo en la producción de miel, existe un considerable vacío en el conocimiento acerca de las enfermedades de etiología protista que afectan las abejas en el país. La ameba Malpighamoeba mellificae Prell es un protista entomopatógeno que invade los túbulos de Malpighi de las abejas e interfiere con el proceso de excreción, debilitando al huésped y posiblemente facilitando la acción de otros patógenos. En esta contribución se presentan los primeros hallazgos de M. mellificae en Argentina y se brindan datos iniciales acerca de su frecuencia, intensidad de las infecciones, y co-ocurrencia con Nosema sp. Malpighamoeba mellificae se halló en dos de 36 localidades prospectadas: San Cayetano, al Sur de la provincia de Buenos Aires y San Carlos de Bariloche, en el Oeste de la provincia de Río Negro.

  8. 77 FR 42649 - Safety Zone: Sea World San Diego Fireworks, Mission Bay; San Diego, CA

    Science.gov (United States)

    2012-07-20

    ... 1625-AA00 Safety Zone: Sea World San Diego Fireworks, Mission Bay; San Diego, CA AGENCY: Coast Guard... authorized by the Captain of the Port, or his designated representative. DATES: This rule is effective from 8... to ensure the public's safety. B. Basis and Purpose The Ports and Waterways Safety Act gives the...

  9. Cataclastic rocks of the San Gabriel fault—an expression of deformation at deeper crustal levels in the San Andreas fault zone

    Science.gov (United States)

    Anderson, J. Lawford; Osborne, Robert H.; Palmer, Donald F.

    1983-10-01

    The San Gabriel fault, a deeply eroded late Oligocene to middle Pliocene precursor to the San Andreas, was chosen for petrologic study to provide information regarding intrafault material representative of deeper crustal levels. Cataclastic rocks exposed along the present trace of the San Andreas in this area are exclusively a variety of fault gouge that is essentially a rock flour with a quartz, feldspar, biotite, chlorite, amphibole, epidote, and Fe-Ti oxide mineralogy representing the milled-down equivalent of the original rock (Anderson and Osborne, 1979; Anderson et al., 1980). Likewise, fault gouge and associated breccia are common along the San Gabriel fault, but only where the zone of cataclasis is several tens of meters wide. At several localities, the zone is extremely narrow (several centimeters), and the cataclastic rock type is cataclasite, a dark, aphanitic, and highly comminuted and indurated rock. The cataclastic rocks along the San Gabriel fault exhibit more comminution than that observed for gouge along the San Andreas. The average grain diameter for the San Andreas gouge ranges from 0.01 to 0.06 mm. For the San Gabriel cataclastic rocks, it ranges from 0.0001 to 0.007 mm. Whereas the San Andreas gouge remains particulate to the smallest grain-size, the ultra-fine grain matrix of the San Gabriel cataclasite is composed of a mosaic of equidimensional, interlocking grains. The cataclastic rocks along the San Gabriel fault also show more mineralogiec changes compared to gouge from the San Andreas fault. At the expense of biotite, amphibole, and feldspar, there is some growth of new albite, chlorite, sericite, laumontite, analcime, mordenite (?), and calcite. The highest grade of metamorphism is laumontite-chlorite zone (zeolite facies). Mineral assemblages and constrained uplift rates allow temperature and depth estimates of 200 ± 30° C and 2-5 km, thus suggesting an approximate geothermal gradient of ~50°C/km. Such elevated temperatures imply a

  10. The disappearing San of southeastern Africa and their genetic affinities.

    Science.gov (United States)

    Schlebusch, Carina M; Prins, Frans; Lombard, Marlize; Jakobsson, Mattias; Soodyall, Himla

    2016-12-01

    Southern Africa was likely exclusively inhabited by San hunter-gatherers before ~2000 years ago. Around that time, East African groups assimilated with local San groups and gave rise to the Khoekhoe herders. Subsequently, Bantu-speaking farmers, arriving from the north (~1800 years ago), assimilated and displaced San and Khoekhoe groups, a process that intensified with the arrival of European colonists ~350 years ago. In contrast to the western parts of southern Africa, where several Khoe-San groups still live today, the eastern parts are largely populated by Bantu speakers and individuals of non-African descent. Only a few scattered groups with oral traditions of Khoe-San ancestry remain. Advances in genetic research open up new ways to understand the population history of southeastern Africa. We investigate the genomic variation of the remaining individuals from two South African groups with oral histories connecting them to eastern San groups, i.e., the San from Lake Chrissie and the Duma San of the uKhahlamba-Drakensberg. Using ~2.2 million genetic markers, combined with comparative published data sets, we show that the Lake Chrissie San have genetic ancestry from both Khoe-San (likely the ||Xegwi San) and Bantu speakers. Specifically, we found that the Lake Chrissie San are closely related to the current southern San groups (i.e., the Karretjie people). Duma San individuals, on the other hand, were genetically similar to southeastern Bantu speakers from South Africa. This study illustrates how genetic tools can be used to assess hypotheses about the ancestry of people who seemingly lost their historic roots, only recalling a vague oral tradition of their origin.

  11. 75 FR 27432 - Security Zone; Golden Guardian 2010 Regional Exercise; San Francisco Bay, San Francisco, CA

    Science.gov (United States)

    2010-05-17

    ... can better evaluate its effects on them and participate in the rulemaking process. Small businesses... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG-2010-0221] RIN 1625-AA87 Security Zone; Golden Guardian 2010 Regional Exercise; San Francisco Bay, San Francisco, CA AGENCY...

  12. Elementary classical hydrodynamics

    CERN Document Server

    Chirgwin, B H; Langford, W J; Maxwell, E A; Plumpton, C

    1967-01-01

    Elementary Classical Hydrodynamics deals with the fundamental principles of elementary classical hydrodynamics, with emphasis on the mechanics of inviscid fluids. Topics covered by this book include direct use of the equations of hydrodynamics, potential flows, two-dimensional fluid motion, waves in liquids, and compressible flows. Some general theorems such as Bernoulli's equation are also considered. This book is comprised of six chapters and begins by introducing the reader to the fundamental principles of fluid hydrodynamics, with emphasis on ways of studying the motion of a fluid. Basic c

  13. Elementary number theory

    CERN Document Server

    Dudley, Underwood

    2008-01-01

    Ideal for a first course in number theory, this lively, engaging text requires only a familiarity with elementary algebra and the properties of real numbers. Author Underwood Dudley, who has written a series of popular mathematics books, maintains that the best way to learn mathematics is by solving problems. In keeping with this philosophy, the text includes nearly 1,000 exercises and problems-some computational and some classical, many original, and some with complete solutions. The opening chapters offer sound explanations of the basics of elementary number theory and develop the fundamenta

  14. Toxic phytoplankton in San Francisco Bay

    Science.gov (United States)

    Rodgers, Kristine M.; Garrison, David L.; Cloern, James E.

    1996-01-01

    The Regional Monitoring Program (RMP) was conceived and designed to document the changing distribution and effects of trace substances in San Francisco Bay, with focus on toxic contaminants that have become enriched by human inputs. However, coastal ecosystems like San Francisco Bay also have potential sources of naturally-produced toxic substances that can disrupt food webs and, under extreme circumstances, become threats to public health. The most prevalent source of natural toxins is from blooms of algal species that can synthesize metabolites that are toxic to invertebrates or vertebrates. Although San Francisco Bay is nutrient-rich, it has so far apparently been immune from the epidemic of harmful algal blooms in the world’s nutrient-enriched coastal waters. This absence of acute harmful blooms does not imply that San Francisco Bay has unique features that preclude toxic blooms. No sampling program has been implemented to document the occurrence of toxin-producing algae in San Francisco Bay, so it is difficult to judge the likelihood of such events in the future. This issue is directly relevant to the goals of RMP because harmful species of phytoplankton have the potential to disrupt ecosystem processes that support animal populations, cause severe illness or death in humans, and confound the outcomes of toxicity bioassays such as those included in the RMP. Our purpose here is to utilize existing data on the phytoplankton community of San Francisco Bay to provide a provisional statement about the occurrence, distribution, and potential threats of harmful algae in this Estuary.

  15. Crowdfunding for Elementary Science Educators

    Science.gov (United States)

    Reese, Jessica; Miller, Kurtz

    2017-01-01

    The inadequate funding of science education in many school districts, particularly in underserved areas, is preventing elementary science educators from realizing the full potential of the "Next Generation Science Standards" ("NGSS"). Yet many elementary science teachers may be unaware that millions of dollars per year are…

  16. ASTER Flyby of San Francisco

    Science.gov (United States)

    2002-01-01

    The Advanced Spaceborne Thermal Emission and Reflection radiometer, ASTER, is an international project: the instrument was supplied by Japan's Ministry of International Trade and Industry. A joint US/Japan science team developed algorithms for science data products, and is validating instrument performance. With its 14 spectral bands, extremely high spatial resolution, and 15 meter along-track stereo capability, ASTER is the zoom lens of the Terra satellite. The primary mission goals are to characterize the Earth's surface; and to monitor dynamic events and processes that influence habitability at human scales. ASTER's monitoring and mapping capabilities are illustrated by this series of images of the San Francisco area. The visible and near infrared image reveals suspended sediment in the bays, vegetation health, and details of the urban environment. Flying over San Francisco (3.2MB) (high-res (18.3MB)), we see the downtown, and shadows of the large buildings. Past the Golden Gate Bridge and Alcatraz Island, we cross San Pablo Bay and enter Suisun Bay. Turning south, we fly over the Berkeley and Oakland Hills. Large salt evaporation ponds come into view at the south end of San Francisco Bay. We turn northward, and approach San Francisco Airport. Rather than landing and ending our flight, we see this is as only the beginning of a 6 year mission to better understand the habitability of the world on which we live. For more information: ASTER images through Visible Earth ASTER Web Site Image courtesy of MITI, ERSDAC, JAROS, and the U.S./Japan ASTER Science Team

  17. Peer Assessment of Elementary Science Teaching Skills

    Science.gov (United States)

    Kilic, Gulsen Bagci; Cakan, Mehtap

    2007-01-01

    In this study, peer assessment was applied in assessing elementary science teaching skills. Preservice teachers taught a science topic as a team to their peers in an elementary science methods course. The peers participating in the science lesson assessed teacher-groups' elementary science teaching skills on an assessment form provided by the…

  18. The Effect of Bangpungtongsung-san Extracts on Adipocyte Metabolism

    Directory of Open Access Journals (Sweden)

    Sang Min, Lee

    2008-03-01

    Full Text Available Objective : The purpose of this study is to investigate the effects of Bangpungtongsung-san extracts on the preadipocytes proliferation, of 3T3-L1 cell line. lipolysis of adipocytes in rat's epididymis and localized fat accumulation of porcine by extraction methods(alcohol and water. Methods : Diminish 3T3-L1 proliferation and lipogenesis do primary role to reduce obesity. So, 3T3-L1 preadipocyte and adipocytes were performed on cell cultures, and using Sprague-Dawley rats for the lipogenesis, and treated with 0.01-1 ㎎/㎖ Bangpungtongsung-san Extracts depend on concentrations. Porcine skin including fat tissue after treated Bangpungtongsung-san Extracts by means of the dosage dependent variation are investigated the histologic changes after injection of these extracts. Results : Following results were obtained from the 3T3-L1 preadipocyte proliferation and lipolysis of adipocyte in rats and histologic investigation of fat tissue. 1. Bangpungtongsung-san extracts were showed the effect of decreased preadipocyte proliferation on the high dosage(1.0㎎/㎖. 2. Bangpungtongsung-san extracts were showed the effect of decreased the activity of glycerol-3-phosphate dehydrogenase(GPDH on the high dosage(1.0㎎/㎖ and Specially, alcohol extract of Bangpungtongsung -san was clear as time goes by high concentration. 3. Bangpungtongsung-san extracts were showed tries to compare the effect of lipolysis, alcohol extract of Bangpungtongsung-san on the high dosage(1.0㎎/㎖ was observed the effect is higher than water extract. 4. Investigated the histological changes in porcine fat tissue after treated Bangpungtongsung-san extracts, we knew that water extract of Bangpungtongsung-san was showed the effect of lipolysis on the high dosage(10.0㎎/㎖ and alcohol extract of Bangpungtongsung-san was showed significant activity to the lysis of cell membranes in all concentration. Conclusion : These results suggest that Bangpungtongsung-san extracts efficiently

  19. SANS studies of polymers

    International Nuclear Information System (INIS)

    Wignall, G.D.

    1984-10-01

    Before small-angle neutron scattering (SANS), chain conformation studies were limited to light and small angle x-ray scattering techniques, usually in dilute solution. SANS from blends of normal and labeled molecules could give direct information on chain conformation in bulk polymers. Water-soluble polymers may be examined in H 2 O/D 2 O mixtures using contrast variation methods to provide further information on polymer structure. This paper reviews some of the information provided by this technique using examples of experiments performed at the National Center for Small-Angle Scattering Research (NCSASR)

  20. Prevalencia de la deficiencia de glucosa - 6 - fosfato deshidrogenasa en donadores voluntarios de sangre que acuden a los hospitales nacionales Cayetano Heredia y Arzobispo Loayza: Lima - Perú

    Directory of Open Access Journals (Sweden)

    Wilson Ruiz

    1997-01-01

    Full Text Available Objetivos: El presente trabajo tuvo como objetivo, conocer la Prevalencia de la deficiencia de la G-6-PDH, en la población masculina mestiza, aparentemente sana que acude a los Bancos de Sangre de los hospitales nacionales Cayetano Heredia (HNCH y Arzobispo Loayza (HNAL. Material y métodos: Se examinó 140 muestras de hemodonadores entre junio y julio, 60 (42.85% correspondieron al HNCH y 80 (57.15% al HNCH. Se aplicó un cuestionario a todos los donantes indagando por: raza en los ancestros y antecedentes patológicos compatibles con episodios de hemólisis enzimopática. En todas las muestras se empleó el método cualitativo de Brewer (tamizaje y posteriormente fueron sometidos a la prueba cuantitativa SIGMA. Resultados: Con el método de Brewer resultaron 9 casos positivos (6.42% de los cuales sólo uno resultó positivo con el método confirmatorio, lo cual da una prevalencia de 0.71%. La totalidad de los participantes fueron de raza mestiza, carecían de antecedentes importantes, las edades estuvieron comprometidas entre los 18 y 58 años y el hematocrito entre 40 y 48%. Conclusiones: Se confirma que la prevalencia de esta deficiencia, en nuestra población es bastante baja. (Rev Med Hered 1997; 8: 11-18.

  1. Modeling pesticide loadings from the San Joaquin watershed into the Sacramento-San Joaquin Delta using SWAT

    Science.gov (United States)

    Chen, H.; Zhang, M.

    2016-12-01

    The Sacramento-San Joaquin Delta is an ecologically rich, hydrologically complex area that serves as the hub of California's water supply. However, pesticides have been routinely detected in the Delta waterways, with concentrations exceeding the benchmark for the protection of aquatic life. Pesticide loadings into the Delta are partially attributed to the San Joaquin watershed, a highly productive agricultural watershed located upstream. Therefore, this study aims to simulate pesticide loadings to the Delta by applying the Soil and Water Assessment Tool (SWAT) model to the San Joaquin watershed, under the support of the USDA-ARS Delta Area-Wide Pest Management Program. Pesticide use patterns in the San Joaquin watershed were characterized by combining the California Pesticide Use Reporting (PUR) database and GIS analysis. Sensitivity/uncertainty analyses and multi-site calibration were performed in the simulation of stream flow, sediment, and pesticide loads along the San Joaquin River. Model performance was evaluated using a combination of graphic and quantitative measures. Preliminary results indicated that stream flow was satisfactorily simulated along the San Joaquin River and the major eastern tributaries, whereas stream flow was less accurately simulated in the western tributaries, which are ephemeral small streams that peak during winter storm events and are mainly fed by irrigation return flow during the growing season. The most sensitive parameters to stream flow were CN2, SOL_AWC, HRU_SLP, SLSUBBSN, SLSOIL, GWQMN and GW_REVAP. Regionalization of parameters is important as the sensitivity of parameters vary significantly spatially. In terms of evaluation metric, NSE tended to overrate model performance when compared to PBIAS. Anticipated results will include (1) pesticide use pattern analysis, (2) calibration and validation of stream flow, sediment, and pesticide loads, and (3) characterization of spatial patterns and temporal trends of pesticide yield.

  2. Professional Identity and Burnout among Pre-School, Elementary, and Post-Elementary School Teachers in Israel

    Science.gov (United States)

    Fisherman, Shraga

    2015-01-01

    The novelty of the present study is its attempt to distinguish between pre-school, elementary, and post-elementary school teachers, regarding the relationship between professional identity and burnout. Two hundred and forty teachers responded to two questionnaires: professional identity and teacher burnout scales. Pre-school teachers were found to…

  3. Butterfly fauna in Mount Gariwang-san, Korea

    Directory of Open Access Journals (Sweden)

    Cheol Min Lee

    2016-06-01

    Full Text Available The aim of this study is to elucidate butterfly fauna in Mt. Gariwang-san, Korea. A field survey was conducted from 2010 to 2015 using the line transect method. A literature survey was also conducted. A total of 2,037 butterflies belonging to 105 species were recorded. In the estimation of species richness of butterfly, 116 species were estimated to live in Mt. Gariwang-san. In butterfly fauna in Mt. Gariwang-san, the percentage of northern species was very high and the percentage of grassland species was relatively higher than that of forest edge species and forest interior species. Sixteen red list species were found. In particular, Mimathyma nycteis was only recorded in Mt. Gariwang-san. When comparing the percentage of northern species and southern species including those recorded in previous studies, the percentage of northern species was found to have decreased significantly whereas that of southern species increased. We suggest that the butterfly community, which is distributed at relatively high altitudes on Mt. Gariwang-san, will gradually change in response to climate change.

  4. Elementary Thermal Operations

    DEFF Research Database (Denmark)

    Lostaglio, Matteo; Alhambra, Álvaro M.; Perry, Christopher

    2018-01-01

    To what extent do thermodynamic resource theories capture physically relevant constraints? Inspired by quantum computation, we define a set of elementary thermodynamic gates that only act on 2 energy levels of a system at a time. We show that this theory is well reproduced by a Jaynes-Cummings in......To what extent do thermodynamic resource theories capture physically relevant constraints? Inspired by quantum computation, we define a set of elementary thermodynamic gates that only act on 2 energy levels of a system at a time. We show that this theory is well reproduced by a Jaynes...

  5. On the invertibility of elementary operators

    OpenAIRE

    Boudi, Nadia; Bračič, Janko

    2013-01-01

    Let $\\mathscr{X}$ be a complex Banach space and $\\mathcal{L}(\\mathscr{X})$ be the algebra of all bounded linear operators on $\\mathscr{X}$. For a given elementary operator $\\Phi$ of length $2$ on $\\mathcal{L}(\\mathscr{X})$, we determine necessary and sufficient conditions for the existence of a solution of the equation ${\\rm X} \\Phi=0$ in the algebra of all elementary operators on $\\mathcal{L}(\\mathscr{X})$. Our approach allows us to characterize some invertible elementary operators of length...

  6. Distribution and demography of San Francisco gartersnakes (Thamnophis sirtalis tetrataenia) at Mindego Ranch, Russian Ridge Open Space Preserve, San Mateo County, California

    Science.gov (United States)

    Kim, Richard; Halstead, Brian J.; Wylie, Glenn D.; Casazza, Michael L.

    2018-04-26

    San Francisco gartersnakes (Thamnophis sirtalis tetrataenia) are a subspecies of common gartersnakes endemic to the San Francisco Peninsula of northern California. Because of habitat loss and collection for the pet trade, San Francisco gartersnakes were listed as endangered under the precursor to the Federal Endangered Species Act. A population of San Francisco gartersnakes resides at Mindego Ranch, San Mateo County, which is part of the Russian Ridge Open Space Preserve owned and managed by the Midpeninsula Regional Open Space District (MROSD). Because the site contained non-native fishes and American bullfrogs (Lithobates catesbeianus), MROSD implemented management to eliminate or reduce the abundance of these non-native species in 2014. We monitored the population using capture-mark-recapture techniques to document changes in the population during and following management actions. Although drought confounded some aspects of inference about the effects of management, prey and San Francisco gartersnake populations generally increased following draining of Aquatic Feature 3. Continued management of the site to keep invasive aquatic predators from recolonizing or increasing in abundance, as well as vegetation management that promotes heterogeneous grassland/shrubland near wetlands, likely would benefit this population of San Francisco gartersnakes.

  7. Engineering at the Elementary Level

    Science.gov (United States)

    McGrew, Cheryl

    2012-01-01

    Can engineering technology be taught at the elementary level? Designing and building trebuchets, catapults, solar cars, and mousetrap vehicles in a west central Florida elementary class was considered very unusual in recent years. After a review of current research on failing schools and poor curriculum, the author wondered what her school could…

  8. Explorations in Elementary Mathematical Modeling

    Science.gov (United States)

    Shahin, Mazen

    2010-01-01

    In this paper we will present the methodology and pedagogy of Elementary Mathematical Modeling as a one-semester course in the liberal arts core. We will focus on the elementary models in finance and business. The main mathematical tools in this course are the difference equations and matrix algebra. We also integrate computer technology and…

  9. Assessing Elementary Algebra with STACK

    Science.gov (United States)

    Sangwin, Christopher J.

    2007-01-01

    This paper concerns computer aided assessment (CAA) of mathematics in which a computer algebra system (CAS) is used to help assess students' responses to elementary algebra questions. Using a methodology of documentary analysis, we examine what is taught in elementary algebra. The STACK CAA system, http://www.stack.bham.ac.uk/, which uses the CAS…

  10. Elementary School Philosophy: A Response

    Science.gov (United States)

    Wartenberg, Thomas E.

    2012-01-01

    This article is a response to criticism of my book "Big Ideas for Little Kids." The main topics addressed are: Who is the audience for the book? Can people without formal philosophical training can be good facilitators of elementary school philosophy discussions? Is it important to assess attempts to teach philosophy in elementary school? Should…

  11. San Francisco Bay Long Term Management Strategy for Dredging

    Science.gov (United States)

    The San Francisco Bay Long Term Management Strategy (LTMS) is a cooperative effort to develop a new approach to dredging and dredged material disposal in the San Francisco Bay area. The LTMS serves as the Regional Dredging Team for the San Francisco area.

  12. Elementary Thermal Operations

    DEFF Research Database (Denmark)

    Lostaglio, Matteo; Alhambra, Álvaro M.; Perry, Christopher

    2018-01-01

    To what extent do thermodynamic resource theories capture physically relevant constraints? Inspired by quantum computation, we define a set of elementary thermodynamic gates that only act on 2 energy levels of a system at a time. We show that this theory is well reproduced by a Jaynes-Cummings in......To what extent do thermodynamic resource theories capture physically relevant constraints? Inspired by quantum computation, we define a set of elementary thermodynamic gates that only act on 2 energy levels of a system at a time. We show that this theory is well reproduced by a Jaynes......-Cummings interaction in rotating wave approximation and draw a connection to standard descriptions of thermalisation. We then prove that elementary thermal operations present tighter constraints on the allowed transformations than thermal operations. Mathematically, this illustrates the failure at finite temperature...... to do so, including necessary and sufficient conditions for a given change of the population to be possible. As an example, we describe the resource theory of the Jaynes-Cummings model. Finally, we initiate an investigation into how our resource theories can be applied to Heat Bath Algorithmic Cooling...

  13. San Juan Uchucuanicu: évolution historique

    Directory of Open Access Journals (Sweden)

    1975-01-01

    Full Text Available La communauté de San Juan est reconnue depuis 1939. Une première partie concerne l’organisation de la reducción de San Juan vers le milieu du XVIe siècle. Le poids fiscal s’exerce durement sur le village et la crise est générale dans toute la vallée du Chancay au XVIIe. siècle. La christianisation des habitants est définitive au milieu de ce même siècle. C’est vers la fin du XVIIe siècle et durant tout le XVIIIe que se multiplient les conflits entre San Juan et les villages voisins liés aux terrains de pâture et à la possession de l’eau. La deuxième partie du travail concerne les rapports de la communauté de San Juan avec le Pérou contemporain : contrainte fiscale toujours très lourde durant la fin de l’époque coloniale, exactions des militaires juste avant l’indépendance. La période républicaine voit toujours les conflits avec les villages voisins mais aussi la naissance de familles qui cherchent à retirer le maximum de la communauté. Les terres sont divisées et attribuées : la détérioration de l’organisation communale traditionnelle est manifeste. L4es conflits se multiplient entre petits propriétaires, mais aussi avec les haciendas voisines : c’est l’apparition d’une véritable lutte de classes. La situation actuelle est incertaine, le poids de l’économie marchande se développe avec l’exode des jeunes. Que sera la communauté San Juan à la fin de ce siècle? La comunidad de San Juan está reconocida desde 1939. La primera parte concierne a la organización de la 'reducción' de San Juan hacia mediados del siglo XVI. El peso fiscal se ejerce duramente sobre el pueblo y en el siglo XVII la crisis es general en todo el valle de Chancay. Hacia mediados del mismo siglo la cristianización de los habitantes es definitiva. Es hacia fines del siglo XVII y durante todo el siglo XVIII que se multiplican los conflictos entre San Juan y los pueblos vecinos, los que están relacionados con los terrenos de

  14. Quaternary geology of Alameda County, and parts of Contra Costa, Santa Clara, San Mateo, San Francisco, Stanislaus, and San Joaquin counties, California: a digital database

    Science.gov (United States)

    Helley, E.J.; Graymer, R.W.

    1997-01-01

    Alameda County is located at the northern end of the Diablo Range of Central California. It is bounded on the north by the south flank of Mount Diablo, one of the highest peaks in the Bay Area, reaching an elevation of 1173 meters (3,849 ft). San Francisco Bay forms the western boundary, the San Joaquin Valley borders it on the east and an arbitrary line from the Bay into the Diablo Range forms the southern boundary. Alameda is one of the nine Bay Area counties tributary to San Francisco Bay. Most of the country is mountainous with steep rugged topography. Alameda County is covered by twenty-eight 7.5' topographic Quadrangles which are shown on the index map. The Quaternary deposits in Alameda County comprise three distinct depositional environments. One, forming a transgressive sequence of alluvial fan and fan-delta facies, is mapped in the western one-third of the county. The second, forming only alluvial fan facies, is mapped in the Livermore Valley and San Joaquin Valley in the eastern part of the county. The third, forming a combination of Eolian dune and estuarine facies, is restricted to the Alameda Island area in the northwestern corner of the county.

  15. San Francisco Bay Water Quality Improvement Fund

    Science.gov (United States)

    EPAs grant program to protect and restore San Francisco Bay. The San Francisco Bay Water Quality Improvement Fund (SFBWQIF) has invested in 58 projects along with 70 partners contributing to restore wetlands, water quality, and reduce polluted runoff.,

  16. Development of 40m SANS and Its Utilization Techniques

    International Nuclear Information System (INIS)

    Choi, Sung Min; Kim, Tae Hwan

    2010-06-01

    Small angle neutron scattering (SANS) has been a very powerful tool to study nanoscale (1-100 nm) bulk structures in various materials such as polymer, self assembled materials, nano-porous materials, nano-magnetic materials, metal and ceramics. Understanding the importance of the SANS instrument, the 8m SANS instrument was installed at the CN beam port of HANARO in 2001. However, without having a cold neutron source, the beam intensity is fairly low and the Q-range is rather limited due to short instrument length. In July 1, 2003, therefore, the HANARO cold neutron research facility project was launched and a state of the art 40m SANS instrument was selected as top-priority instrument. The development of the 40m SANS instrument was completed as a joint project between Korea Advanced Institute of Science and Technology and the HANARO in 2010. Here, we report the specification of a state of art 40m SANS instrument at HANARO

  17. San Diego's High School Dropout Crisis

    Science.gov (United States)

    Wilson, James C.

    2012-01-01

    This article highlights San Diego's dropout problem and how much it's costing the city and the state. Most San Diegans do not realize the enormous impact high school dropouts on their city. The California Dropout Research Project, located at the University of California at Santa Barbara, has estimated the lifetime cost of one class or cohort of…

  18. Preservice Elementary Teachers and the Fundamentals of Probability

    Science.gov (United States)

    Dollard, Clark

    2011-01-01

    This study examined how preservice elementary teachers think about situations involving probability. Twenty-four preservice elementary teachers who had not yet studied probability as part of their preservice elementary mathematics coursework were interviewed using a task-based interview. The participants' responses showed a wide variety of…

  19. Coal exploration in the Alto San Jorge area, Cordoba Department. Exploracion de carbones en el Ato San Jorge, Departamento de Cordoba

    Energy Technology Data Exchange (ETDEWEB)

    Ospina, L H; Oquendo, G G [Geominas Ltda, Medellin (Colombia)

    1989-01-01

    A Mining Feasibility Study in the Area of Alto San Jorge, Department of Cordoba, Colombia, was commissioned by CARBOCOL S.A. to the Consortium Geominas-NACI. An area of 800 Ka2 was explored to define surface mining possibilities within two subareas referred to as Alto San Jorge and San Pedro Ure. Rocks of Cretaceous, Tertiary and Quaternary age crop out in the zone. In the subarea Alto San Jorge the principal structure is a syncline with a south-north direction. The San Pedro Ure subarea is formed by undulations with flanks of low dip, the most important being the San Antonio Syncline because it contains the mining block. The geological study of the surface demonstrated the existence of coal in the Oligocene Cienaga de Oro Formation and the Niocene Cerrito Formation, with potential resources of 6.3 billion tons. The subsequent exploration of the subsoil, with 20.618 m of drilling, permitted determination of demonstrated reserves in the order of 2.9 billion tons within two areas. In the sector selected for the mine plan, in the area of San Pedro-Puerto Libertador, 7.791 m of drilling was accomplished to define a demonstrated reserve of 515 million tons of coal down to a depth of 200. The combustible type coal has 5.000 cal/g. Complete mining schedules were developed at the prefeasibility level for two surface mines with productions of 1.5 MMTY and 4 MMTY. 9 figs., 3 tabs., 28 refs.

  20. Cenobios leoneses altomedievales ante la europeización: San Pedro y San Pablo de Montes, Santiago y San Martín de Peñalba y San Miguel de Escalada

    Directory of Open Access Journals (Sweden)

    Martínez Tejera, Artemio Manuel

    2002-06-01

    Full Text Available The following paper analyses the behaviour of three of the most important monastic communities in the reing of Asturias-Leon for the ninth and then centuries. During this period we witness the implementation of a new ordo, or liturgical ritual that replaces the Hispanic one, strongly established in the Territorium. The liturgical adaptation produces tension and conflicts among the members of different monastic communities, and even between the Episcopate and the monarchy - being King Alfonso VI. In some of the monasteries, the arrival of the new ordo causes the adaptation of the liturgical space, with subsequent changes in liturgical furniture.

    El presente estudio pretende analizar el comportamiento de tres de las más importantes comunidades monásticas astur-leonesas de los siglos IX y X (San Pedro y San Pablo de Montes, Santiago y San Martín de Peñalba y San Miguel de Escalada ante la recepción e implantación de aquel nuevo ordo o ritual litúrgico que vino a sustituir al Hispánico, fuertemente asentado en el territorium. Readaptación litúrgica que, con distinta intensidad, producirá tensiones y enfrentamientos entre los miembros de las distintas comunidades monásticas, incluso entre el episcopado y la monarquía (personificada en la figura de Alfonso VI, pero no únicamente. En alguno de estos monasterios la llegada del nuevo ordo supondrá, además, la readaptación de su espacio litúrgico, lo que trajo consigo significativas modificaciones constructivas.

  1. Tuberculosis en pacientes con diabetes mellitus: Un estudio epidemiológico y clínico en el Hospital Nacional Cayetano Heredia

    Directory of Open Access Journals (Sweden)

    Juan Luis DELGADO ROSPIGLIOSI

    2006-07-01

    Full Text Available Objetivo: Describir las características epidemiológicas y clínicas de pacientes diabéticos con tuberculosis atendidos en el Hospital Nacional Cayetano Heredia (HNCH. Material y Métodos: Estudio retrospectivo, observacional, descriptivo. Se identificaron los "casos" (pacientes diabéticos con TBC revisando los registros del Servicio de Endocrinología, Servicios de hospitalización de Medicina y del Departamento de Enfermedades Infecciosas y Tropicales del HNCH atendidos durante el periodo de 1997 al 2003. Resultados: Se encontraron 85 episodios de TBC en 74 historias clínicas revisadas. El promedio de edad fue de 49,4 +12,8 años; 48/74 (65% fueron hombres y 26/74 (35% mujeres. 72/74 (97,3% pacientes presentaron diabetes mellitus tipo 2. El tiempo promedio de enfermedad diabética previo al desarrollo de TBC fue de 4.2 +4 años. 75/85 (88,2% episodios presentaron TBC pulmonar, habiendo confirmación bacteriológica en el 51,3% de estos casos. 59/85 (69% casos no cumplían regularmente con el tratamiento indicado para la diabetes y 60/85 (71% tenían mal control metabólico al desarrollar TBC. 31/74 (42% pacientes fueron hospitalizados por TBC, asociándose cetoacidosis diabética (CAD en el 51,4% de las hospitalizaciones por esta causa. La TBC puede ser causa importante desencadenante de CAD en nuestro medio. La tasa de fracasos al tratamiento fue de 15/85 (17,6%; hubo sospecha de TB-MDR en 13/74 pacientes (17,6%. La tasa de recaídas fue de 15/74 (20,3%. Fallecieron 3/74 pacientes (4% durante el período de estudio. Conclusiones: Pacientes diabéticos mal controlados desarrollan TBC con una elevada tasa de recaídas, fracasos y TB-MDR, con alta sospecha de contagio intrahospitalario. (Rev Med Hered 2006;17:132-140.

  2. Ventana torácica en el tratamiento del empiema pleural crónico en el Hospital Nacional Cayetano Heredia, 1990-1998

    Directory of Open Access Journals (Sweden)

    Rosalba Lupe Maekawa Ykehara

    2002-07-01

    Full Text Available Objetivo: Describir los resultados de la ventana torácica en el manejo del empiema pleural. Pacientes y métodos: Estudio descriptivo, retrospectivo y transversal. Se incluyeron pacientes sometidos a ventana torácica (toracostomía entre 1990-1998, en el Hospital Nacional Cayetano Heredia. Se estudió el tratamiento quirúrgico (técnica, hallazgos y complicaciones, morbilidad y mortalidad. De los 59 casos estudiados 39 (66.1% fueron varones y 20 (33.9% mujeres. La edad promedio fue 30.9 ± 14 años. Resultados: Según la etiología, 55.93% tuvieron empiema pleural tuberculoso, 28.81% empiema post cirugía pulmonar, 11.86% empiema post neumónico y 3.39% empiema por traumatismo. El 95% de los casos fueron previamente drenados con tubo de toracostomía. El patrón radiológico predominante fue el hidroneumotórax (58%. El 64.4% fueron intervenidos bajo anestesia regional. El tiempo promedio operatorio fue de 57.3 ± 28 minutos. Los arcos costales resecados con más frecuencia fueron el 6°-7° (25%. El tiempo promedio de hospitalización fue 38.6 ± 26.9 días, el tiempo promedio postoperatorio fue 8.5 ± 8.3 días. De los pacientes que tuvieron un seguimiento mayor a 3 meses (33 pacientes, se pudo confirmar el cierre de la ventana torácica en 13 casos y reexpansión pulmonar en 21 casos. Conclusiones: La indicación principal fue la falta de respuesta al tubo de toracostomía de drenaje (40%. La etiología principal es el empiema pleural tuberculoso. Es un procedimiento ideal para pacientes severamente comprometidos e inmunosuprimidos. Las complicaciones postoperatorias fueron 11.86%. El porcentaje de reoperaciones fue de 3.4%. No se encontró mortalidad asociada al procedimiento. (Rev Med Hered 2002; 13: 90-98.

  3. Awareness on Learning Disabilities among Elementary School Teachers

    Science.gov (United States)

    Menon K. P., Seema

    2016-01-01

    The study aims to find out the awareness on learning disabilities among elementary school teachers. The sample for the present study consisted of 500 elementary school teachers of Kerala. In this study the investigator used an Awareness Test on Learning Disabilities to measure the Awareness on Learning Disabilities among Elementary School…

  4. Complejo tubo-ovárico: revisión de casos en el Hospital Nacional Cayetano Heredia (1990-1999

    Directory of Open Access Journals (Sweden)

    Ronald Roberto Sanchez Silva Torriani

    2003-07-01

    Full Text Available Objetivo: Determinar las características epidemiológicas, clínicas y de manejo del complejo tubo-ovárico (CTO.Material y métodos: Se realizó un estudio retrospectivo en 65 pacientes hospitalizadas con diagnóstico de complejo tubo-ovárico (CTO en el Servicio de Ginecología del Hospital Nacional Cayetano Heredia de Lima, Perú, entre Enero de 1990 y Diciembre de 1999. Se registraron datos demográficos, antecedentes patológicos, cuadro clínico, exámenes auxiliares, tratamiento médico, quirúrgico, hallazgos operatorios, complicaciones quirúrgicas, tiempo de hospitalización y seguimiento. Resultados: El complejo tubo-ovárico correspondió al 0.72% de las pacientes hospitalizadas en el servicio de Ginecología de este hospital. Este fue más frecuente entre la tercera y cuarta década de la vida (promedio = 31.9 años, en casadas (44.6% y multigestas (53.8%. El uso de dispositivos intrauterinos no tuvo relación estadísticamente significativa con la localización del CTO confirmado quirúrgicamente. Las manifestaciones clínicas más frecuentes fueron dolor pélvico (96.9%, fiebre (76.9%, dolor a la movilización cervical (60% y masa anexial (58.5%. La ecografía pélvica presentó mayor positividad en el diagnóstico de CTO (91.3%, luego de la laparoscopía (100%, aunque ésta se realizó solo en 4 casos. El drenaje de absceso más lavado de cavidad peritoneal tuvo similar porcentaje de complicaciones que las demás técnicas, pero en el seguimiento 2 pacientes (14.3% fueron reoperadas. En el seguimiento de 24 pacientes el dolor pélvico fue el problema más frecuente en 40% de casos. No hubo mortalidad en este estudio. Conclusiones: El complejo tubo-ovárico es una patología que compromete la capacidad reproductiva y función ovárica de la mujer. La ecografía es un examen que presentó alta positividad en el diagnóstico. La laparotomía exploratoria más drenaje de absceso y lavado de cavidad peritoneal es un tratamiento quir

  5. Some problems of high-energy elementary particle physics

    International Nuclear Information System (INIS)

    Isaev, P.S.

    1995-01-01

    The problems of high-energy elementary particle physics are discussed. It is pointed out that the modern theory of elementary-particle physics has no solutions of some large physical problems: origin of the mass, electric charge, identity of particle masses, change of the mass of elementary particles in time and others. 7 refs

  6. On the ontology of the elementary particles. A philosophical analysis of the actual elementary-particle physics

    International Nuclear Information System (INIS)

    Brueckner, Thomas Christian

    2015-01-01

    After a description of the standard model of elementary-particle physics the author describes structuralistic reconstructions. Then the problem of the theoretical terms is discussed. Therafter the reconstruction of the standard-model elementary particles is described. Finally the ontology of leptons, quarks and both free and in atoms bound protons is considered.

  7. Fostering Student Sense Making in Elementary Science Learning Environments: Elementary Teachers' Use of Science Curriculum Materials to Promote Explanation Construction

    Science.gov (United States)

    Zangori, Laura; Forbes, Cory T.; Biggers, Mandy

    2013-01-01

    While research has shown that elementary (K-5) students are capable of engaging in the scientific practice of explanation construction, commonly-used elementary science curriculum materials may not always afford them opportunities to do so. As a result, elementary teachers must often adapt their science curriculum materials to better support…

  8. 77 FR 46115 - Notice of Inventory Completion: San Diego Museum of Man, San Diego, CA

    Science.gov (United States)

    2012-08-02

    ...The San Diego Museum of Man has completed an inventory of human remains in consultation with the appropriate Indian tribe, and has determined that there is a cultural affiliation between the human remains and a present-day Indian tribe. Representatives of any Indian tribe that believes itself to be culturally affiliated with the human remains may contact the San Diego Museum of Man. Repatriation of the human remains to the Indian tribe stated below may occur if no additional claimants come forward.

  9. Effects of Choto-san and Chotoko on thiopental-induced sleeping time

    OpenAIRE

    JEENAPONGSA, Rattima; Tohda, Michihisa; Watanabe, Hiroshi

    2003-01-01

    Choto-san has been used for treatment of centrally regulated disorders such as dementia, hypertension, headache and vertigo. Our laboratory showed that Choto-san improved learning memory in ischemic mice. It is noticeable that Choto-san treated animals and animals that underwent conducting occlusion of common carotid arteries (2VO) operation slept longer than the normal animals. Therefore, this study aimed to clarify the effects of Choto-san and its related component; Chotoko and Choto-san wi...

  10. 33 CFR 110.120 - San Luis Obispo Bay, Calif.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false San Luis Obispo Bay, Calif. 110... ANCHORAGES ANCHORAGE REGULATIONS Special Anchorage Areas § 110.120 San Luis Obispo Bay, Calif. (a) Area A-1. Area A-1 is the water area bounded by the San Luis Obispo County wharf, the shoreline, a line drawn...

  11. Species Observations (poly) - San Diego County [ds648

    Data.gov (United States)

    California Natural Resource Agency — Created in 2009, the SanBIOS database serves as a single repository of species observations collected by various departments within the County of San Diego's Land...

  12. Mammal Track Counts - San Diego County [ds442

    Data.gov (United States)

    California Natural Resource Agency — The San Diego Tracking Team (SDTT) is a non-profit organization dedicated to promoting the preservation of wildlife habitat in San Diego County through citizen-based...

  13. Species Observations (poly) - San Diego County [ds648

    Data.gov (United States)

    California Department of Resources — Created in 2009, the SanBIOS database serves as a single repository of species observations collected by various departments within the County of San Diego's Land...

  14. Elementary particle theory

    International Nuclear Information System (INIS)

    Marciano, W.J.

    1984-12-01

    The present state of the art in elementary particle theory is reviewed. Topics include quantum electrodynamics, weak interactions, electroweak unification, quantum chromodynamics, and grand unified theories. 113 references

  15. Cosmic objects and elementary particles

    Energy Technology Data Exchange (ETDEWEB)

    Rozental, I L [AN SSSR, Moscow. Inst. Kosmicheskikh Issledovanij

    1977-02-01

    Considered are the connections between the parameters of elementary particles (mass ''size'') and the characteristics of stars (the main sequence stars, white dwarf stars and pulsars). Presented is the elementary theory of black hole radiation in the framework of which all the regularities of the process are derived. The emphiric numerical sequence connecting nucleon mass and universe constants (G, h, c) with the masses of some cosmic objects is given.

  16. Biological and associated water-quality data for lower Olmos Creek and upper San Antonio River, San Antonio, Texas, March-October 1990

    Science.gov (United States)

    Taylor, R. Lynn

    1995-01-01

    Biological and associated water-quality data were collected from lower Olmos Creek and upper San Antonio River in San Antonio, Texas, during March-October 1990, the second year of a multiyear data-collection program. The data will be used to document water-quality conditions prior to implementation of a proposal to reuse treated wastewater to irrigate city properties in Olmos Basin and Brackenridge Parks and to augment flows in the Olmos Creek/San Antonio River system.

  17. Military Deployment and Elementary Student Achievement

    Science.gov (United States)

    Phelps, Terri; Dunham, Mardis; Lyons, Robert

    2010-01-01

    This study investigated the impact that military deployment has upon academic achievement of elementary school students. TerraNova test scores of 137 fourth and fifth grade students in two elementary schools with a high proportion of military dependent children were examined for two consecutive years. Although the academic test performance fell…

  18. Applying Disciplinary Literacy in Elementary Geography

    Science.gov (United States)

    Britt, Judy; Ming, Kavin

    2017-01-01

    In this article, a social studies teacher and a literacy teacher describe a vision for social studies that highlights reading practices that foster disciplinary literacy in elementary geography. Their purpose is to share a practical approach for enriching elementary social studies lessons and activities with a geographic lens. During the…

  19. Remembering San Diego

    International Nuclear Information System (INIS)

    Chuyanov, V.

    1999-01-01

    After 6 years of existence the ITER EDA project in San Diego, USA, was terminated by desition of the US Congress. This article describes how nice it was for everybody as long as it lasted and how sad it is now

  20. Update: San Andreas Fault experiment

    Science.gov (United States)

    Christodoulidis, D. C.; Smith, D. E.

    1984-01-01

    Satellite laser ranging techniques are used to monitor the broad motion of the tectonic plates comprising the San Andreas Fault System. The San Andreas Fault Experiment, (SAFE), has progressed through the upgrades made to laser system hardware and an improvement in the modeling capabilities of the spaceborne laser targets. Of special note is the launch of the Laser Geodynamic Satellite, LAGEOS spacecraft, NASA's only completely dedicated laser satellite in 1976. The results of plate motion projected into this 896 km measured line over the past eleven years are summarized and intercompared.

  1. Vabariigi aastapäev San Franciscos / Heino Valvur ; foto: Heino Valvur

    Index Scriptorium Estoniae

    Valvur, Heino

    2006-01-01

    veebruarikuu möödus San Franciscos Eesti Vabariigi 88. aastapäeva pühitsedes: traditsiooniliselt tähistas aastapäeva San Francisco Seenioride Klubi koosviibimisega, E.E.L.K. San Francisco koguduses peeti jumalateenistus ja koosviibimine, kus noored esitasid rahvalaule, San Francisco Eesti Selts tähistas aastapäeva 25. veebruaril aktuse ja koosviibimisega

  2. 76 FR 70480 - Otay River Estuary Restoration Project, South San Diego Bay Unit of the San Diego Bay National...

    Science.gov (United States)

    2011-11-14

    ... River Estuary Restoration Project, South San Diego Bay Unit of the San Diego Bay National Wildlife...), intend to prepare an environmental impact statement (EIS) for the proposed Otay River Estuary Restoration... any one of the following methods. Email: [email protected] . Please include ``Otay Estuary NOI'' in the...

  3. CARACTERÍSTICAS DE LA PRESCRIPCIÓN ANTIBIÓTICA EN LOS CONSULTORIOS DE MEDICINA DEL HOSPITAL CAYETANO HEREDIA DE LIMA, PERÚ

    Directory of Open Access Journals (Sweden)

    Fernando Llanos Zavalaga

    2002-01-01

    Full Text Available Fundamento: La prescripción adecuada de medicamentos incluye, entre otros aspectos, la elección de determinado medicamento en dosis y tiempo requeridos, considerando además su eficacia y conveniencia. El presente estudio transversal descriptivo, tiene como objetivo evaluar la prescripción antibiótica: proporción de prescripción y calidad de la misma, en la consulta ambulatoria del servicio de medicina del Hospital Cayetano Heredia. Métodos: La población estuvo formada por las 1.449 personas que acudieron a la consulta del 8 de enero al 2 de febrero del 2001. Para determinar la calidad se calculó una muestra de 120 personas a partir de las que formaban la población de estudio. La información fue revisada y calificada por tres médicos especialistas, teniendo como patrón referencial la United States Pharmacopeial Drug Information. Resultados: La proporción de prescripción fue del 13,53% (IC 95%: 11,77%-15,29%, sin diferencias estadísticamente significativas según edad, sexo, y consultorios. Los diagnósticos más frecuentes con prescripción antibiótica fueron: infección urinaria y faringoamigdalitis; los antibióticos más prescritos fueron: ciprofloxacina y cotrimoxazol. 70,00% de antibióticos indicados fueron prescritos con nombre genérico y 70,83% se encuentran en el Petitorio Nacional de Medicamentos Esenciales. En relación a la calidad, encontramos 81,67% (IC 95%: 79,68%-83,66% de prescripciones inadecuadas, en cuanto a duración (59,20% y dosis (20,00% del antibiótico. Conclusiones: La proporción de prescripción de antibióticos encontrada fue baja e inferior a la reportada en la literatura, mientras que la calidad inadecuada fue elevada, con valores semejantes a otros estudios. Las investigaciones en este campo son todavía escasas, siendo importante realizar más estudios que permitan documentar las características de la prescripción. Es necesario contar con una política de antibióticos que establezca

  4. Backwater Flooding in San Marcos, TX from the Blanco River

    Science.gov (United States)

    Earl, Richard; Gaenzle, Kyle G.; Hollier, Andi B.

    2016-01-01

    Large sections of San Marcos, TX were flooded in Oct. 1998, May 2015, and Oct. 2015. Much of the flooding in Oct. 1998 and Oct. 2015 was produced by overbank flooding of San Marcos River and its tributaries by spills from upstream dams. The May 2015 flooding was almost entirely produced by backwater flooding from the Blanco River whose confluence is approximately 2.2 miles southeast of downtown. We use the stage height of the Blanco River to generate maps of the areas of San Marcos that are lower than the flood peaks and compare those results with data for the observed extent of flooding in San Marcos. Our preliminary results suggest that the flooding occurred at locations more than 20 feet lower than the maximum stage height of the Blanco River at San Marcos gage (08171350). This suggest that the datum for either gage 08171350 or 08170500 (San Marcos River at San Marcos) or both are incorrect. There are plans for the U.S. Army Corps of Engineers to construct a Blanco River bypass that will divert Blanco River floodwaters approximately 2 miles farther downstream, but the $60 million price makes its implementation problematic.

  5. (De)constructing literacy: Education inequalities and the production of space in San Diego, California

    Science.gov (United States)

    Tangeman, Andrew Gerrit

    Since its inception, the No Child Left Behind Act of 2001 (NCLB) and recent additions to the U.S. Elementary and Secondary Education Act (ESEA) have elicited a broad swath of responses from the educational community. These responses include critical discussions of how standardized testing requirements proliferate a "teach for the test" mentality that transforms how reading, writing, and mathematics are taught in public schools. This thesis focused specifically on "literacy" in relation to the policies that challenge its status as a subjective form of communication, knowledge sharing, and story-telling. Embedded within the term "literacy" are sets of socially-constructed dualisms such as "good school" vs. "bad school," "literate" vs. "illiterate," and "reader" vs. "test-taker" that are propagated under education reform. Investigating these dualisms involved a mixed methods approach, which included the use of critical theory, geovisualization, and geographic analysis. The resulting data allows for a comprehensive look into the economic, political, social, and cultural forces involved in the production of literate space(s) in San Diego, California.

  6. Physics through the 1990s: Elementary-particle physics

    International Nuclear Information System (INIS)

    Kirk, W.T.

    1986-01-01

    This report on elementary-particle physics is part of an overall survey of physics carried out for the National Academy of Sciences by the National Research Council. The panel that wrote this report had three goals. The first goal was to explain the nature of elementary-particle physics and to describe how research is carried out in this field. The second goal was to summarize our present knowledge of the elementary particles and the fundamental forces. The third goal was to consider the future course of elementary-particle physics research and to propose a program for this research in the United States. All of these goals are covered in this report

  7. 33 CFR 165.1187 - Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay...

    Science.gov (United States)

    2010-07-01

    ... Limited Access Areas Eleventh Coast Guard District § 165.1187 Security Zones; Golden Gate Bridge and the... Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, in San Francisco Bay, California. (b... siren, radio, flashing light, or other means, the operator of a vessel shall proceed as directed. [COTP...

  8. On Elementary and Algebraic Cellular Automata

    Science.gov (United States)

    Gulak, Yuriy

    In this paper we study elementary cellular automata from an algebraic viewpoint. The goal is to relate the emergent complex behavior observed in such systems with the properties of corresponding algebraic structures. We introduce algebraic cellular automata as a natural generalization of elementary ones and discuss their applications as generic models of complex systems.

  9. Elementary excitations in nuclei

    International Nuclear Information System (INIS)

    Lemmer, R.H.

    1987-01-01

    The role of elementary quasi-particle and quasi-hole excitations is reviewed in connection with the analysis of data involving high-lying nuclear states. This article includes discussions on: (i) single quasi-hole excitations in pick-up reactions, (ii) the formation of single quasi-hole and quasi-particle excitations (in different nuclei) during transfer reactions, followed by (iii) quasi-particle quasi-hole excitations in the same nucleus that are produced by photon absorption. Finally, the question of photon absorption in the vicinity of the elementary Δ resonance is discussed, where nucleonic as well as nuclear degrees of freedom can be excited

  10. Elementary topology problem textbook

    CERN Document Server

    Viro, O Ya; Netsvetaev, N Yu; Kharlamov, V M

    2008-01-01

    This textbook on elementary topology contains a detailed introduction to general topology and an introduction to algebraic topology via its most classical and elementary segment centered at the notions of fundamental group and covering space. The book is tailored for the reader who is determined to work actively. The proofs of theorems are separated from their formulations and are gathered at the end of each chapter. This makes the book look like a pure problem book and encourages the reader to think through each formulation. A reader who prefers a more traditional style can either find the pr

  11. STEM Is Elementary: Challenges Faced by Elementary Teachers in the Era of the Next Generation Science Standards

    Science.gov (United States)

    Isabelle, Aaron D.

    2017-01-01

    For students to achieve the goals of the Next Generation Science Standards (NGSS) by Grade 12, thinking and acting like scientists and engineers must begin in the elementary grades. However, elementary teachers may find this challenging -because language arts and mathematics still dominate many classrooms--often at the expense of science. This…

  12. Place-based Learning About Climate with Elementary GLOBE

    Science.gov (United States)

    Hatheway, B.; Gardiner, L. S.; Harte, T.; Stanitski, D.; Taylor, J.

    2017-12-01

    Place-based education - helping students make connections between themselves, their community, and their local environment - is an important tool to help young learners understand their regional climate and start to learn about climate and environmental change. Elementary GLOBE storybooks and learning activities allow opportunities for place-based education instructional strategies about climate. In particular, two modules in the Elementary GLOBE unit - Seasons and Climate - provide opportunities for students to explore their local climate and environment. The storybooks and activities also make connections to other parts of elementary curriculum, such as arts, geography, and math. Over the long term, place-based education can also encourage students to be stewards of their local environment. A strong sense of place may help students to see themselves as stakeholders in their community and its resilience. In places that are particularly vulnerable to the impacts of climate and environmental change and the economic, social, and environmental tradeoffs of community decisions, helping young students developing a sense of place and to see the connection between Earth science, local community, and their lives can have a lasting impact on how a community evolves for decades to come. Elementary GLOBE was designed to help elementary teachers (i.e., grades K-4) integrate Earth system science topics into their curriculum as they teach literacy skills to students. This suite of instructional materials includes seven modules. Each module contains a science-based storybook and learning activities that support the science content addressed in the storybooks. Elementary GLOBE modules feature air quality, climate, clouds, Earth system, seasons, soil, and water. New eBooks allow students to read stories on computers or tablets, with the option of listening to each story with an audio recording. A new Elementary GLOBE Teacher Implementation Guide, published in 2017, provides

  13. Norms of certain Jordan elementary operators

    Science.gov (United States)

    Zhang, Xiaoli; Ji, Guoxing

    2008-10-01

    Let be a complex Hilbert space and let denote the algebra of all bounded linear operators on . For , the Jordan elementary operator UA,B is defined by UA,B(X)=AXB+BXA, . In this short note, we discuss the norm of UA,B. We show that if and ||UA,B||=||A||||B||, then either AB* or B*A is 0. We give some examples of Jordan elementary operators UA,B such that ||UA,B||=||A||||B|| but AB*[not equal to]0 and B*A[not equal to]0, which answer negatively a question posed by M. Boumazgour in [M. Boumazgour, Norm inequalities for sums of two basic elementary operators, J. Math. Anal. Appl. 342 (2008) 386-393].

  14. Elementary School Organization: Self-Contained and Departmentalized Classroom Structures.

    Science.gov (United States)

    Des Moines Public Schools, IA.

    Surveys were conducted to investigate contemporary thought regarding organizational practices at the elementary level, with particular attention to identifying the extent to which departmentalization was supported by research and actually employed in 24 elementary schools in the Midwest and in 41 Des Moines elementary schools. Four committees…

  15. Charm-quarks and new elementary particles

    International Nuclear Information System (INIS)

    Petersen, J.L.

    1978-01-01

    This is the first part of an extensive paper which discusses: the Nobel prize in physics 1976; discovery of the J/psi-particle; elementary particles and elementary building blocks; the four reciprocal effects; gauge theories; quark-antiquark reciprocal effects; the high-energy approximation; a simple quark-antiquark potential; and quark diagrams and the Zweig rule. (Auth.)

  16. Fitting the datum of SANS with Pxy program

    International Nuclear Information System (INIS)

    Sun, Liangwei; Peng, Mei; Chen, Liang

    2009-04-01

    The thesis introduces the basic theory of Small-Angle neutron scattering, enumerates several approximate law. It simply describes the components of Small-Angle neutron spectrometer (SANS) and the parameters of SANS of Budapest Neutron Center (BNC) in Hungary. During the period of studying at Budapest Neutron Center in Hungary, the experiments of wavelength calibration was carried out with SIBE and the SANS experiments of sample Micelles. The experiments are briefly introduced. Pxy program is used to fit these datum, and the results of wavelength and sizes of sample Micelles are presented. (authors)

  17. Elementary particle physics at the University of Florida

    International Nuclear Information System (INIS)

    1991-01-01

    This report discusses research in the following areas: theoretical elementary particle physics; experimental elementary particle physics; axion project; SSC detector development; and computer acquisition. (LSP)

  18. Elementary particle physics at the University of Florida

    Energy Technology Data Exchange (ETDEWEB)

    1991-12-01

    This report discusses research in the following areas: theoretical elementary particle physics; experimental elementary particle physics; axion project; SSC detector development; and computer acquisition. (LSP).

  19. Holocene slip rates along the San Andreas Fault System in the San Gorgonio Pass and implications for large earthquakes in southern California

    Science.gov (United States)

    Heermance, Richard V.; Yule, Doug

    2017-06-01

    The San Gorgonio Pass (SGP) in southern California contains a 40 km long region of structural complexity where the San Andreas Fault (SAF) bifurcates into a series of oblique-slip faults with unknown slip history. We combine new 10Be exposure ages (Qt4: 8600 (+2100, -2200) and Qt3: 5700 (+1400, -1900) years B.P.) and a radiocarbon age (1260 ± 60 years B.P.) from late Holocene terraces with scarp displacement of these surfaces to document a Holocene slip rate of 5.7 (+2.7, -1.5) mm/yr combined across two faults. Our preferred slip rate is 37-49% of the average slip rates along the SAF outside the SGP (i.e., Coachella Valley and San Bernardino sections) and implies that strain is transferred off the SAF in this area. Earthquakes here most likely occur in very large, throughgoing SAF events at a lower recurrence than elsewhere on the SAF, so that only approximately one third of SAF ruptures penetrate or originate in the pass.Plain Language SummaryHow large are earthquakes on the southern San Andreas Fault? The answer to this question depends on whether or not the earthquake is contained only along individual fault sections, such as the Coachella Valley section north of Palm Springs, or the rupture crosses multiple sections including the area through the San Gorgonio Pass. We have determined the age and offset of faulted stream deposits within the San Gorgonio Pass to document slip rates of these faults over the last 10,000 years. Our results indicate a long-term slip rate of 6 mm/yr, which is almost 1/2 of the rates east and west of this area. These new rates, combined with faulted geomorphic surfaces, imply that large magnitude earthquakes must occasionally rupture a 300 km length of the San Andreas Fault from the Salton Sea to the Mojave Desert. Although many ( 65%) earthquakes along the southern San Andreas Fault likely do not rupture through the pass, our new results suggest that large >Mw 7.5 earthquakes are possible on the southern San Andreas Fault and likely

  20. City of San Francisco, California street tree resource analysis

    Science.gov (United States)

    E.G. McPherson; J.R. Simpson; P.J. Peper; Q. Xiao

    2004-01-01

    Street trees in San Francisco are comprised of two distinct populations, those managed by the city’s Department of Public Works (DPW) and those managed by private property owners with or without the help of San Francisco’s urban forestry nonprofit, Friends of the Urban Forest (FUF). These two entities believe that the public’s investment in stewardship of San Francisco...

  1. Elementary functions algorithms and implementation

    CERN Document Server

    Muller, Jean-Michel

    2016-01-01

    This textbook presents the concepts and tools necessary to understand, build, and implement algorithms for computing elementary functions (e.g., logarithms, exponentials, and the trigonometric functions). Both hardware- and software-oriented algorithms are included, along with issues related to accurate floating-point implementation. This third edition has been updated and expanded to incorporate the most recent advances in the field, new elementary function algorithms, and function software. After a preliminary chapter that briefly introduces some fundamental concepts of computer arithmetic, such as floating-point arithmetic and redundant number systems, the text is divided into three main parts. Part I considers the computation of elementary functions using algorithms based on polynomial or rational approximations and using table-based methods; the final chapter in this section deals with basic principles of multiple-precision arithmetic. Part II is devoted to a presentation of “shift-and-add” algorithm...

  2. Trouble Brewing in San Francisco. Policy Brief

    Science.gov (United States)

    Buck, Stuart

    2010-01-01

    The city of San Francisco will face enormous budgetary pressures from the growing deficits in public pensions, both at a state and local level. In this policy brief, the author estimates that San Francisco faces an aggregate $22.4 billion liability for pensions and retiree health benefits that are underfunded--including $14.1 billion for the city…

  3. Solar Energy

    Science.gov (United States)

    Building Design and Construction, 1977

    1977-01-01

    Describes 21 completed projects now using solar energy for heating, cooling, or electricity. Included are elementary schools in Atlanta and San Diego, a technical school in Detroit, and Trinity University in San Antonio, Texas. (MLF)

  4. Elementary process theory axiomatic introduction and applications

    CERN Document Server

    Cabbolet, Marcoen J T F

    2011-01-01

    Modern physics lacks a unitary theory that applies to all four fundamental interactions. This PhD thesis is a proposal for a single, complete, and coherent scheme of mathematically formulated elementary laws of nature. While the first chapter presents the general background, the second chapter addresses the method by which the main result has been developed. The next three chapters rigorously introduce the Elementary Process Theory, its mathematical foundations, and its applications to physics, cosmology and philosophy of mind. The final two chapters discuss the results and present the conclusions. Summarizing, the Elementary Process Theory is a scheme of seven well-formed closed expressions, written in the mathematical language of set matrix theory – a generalization of Zermelo-Fraenkel set theory. In the physical world, these seven expressions can be interpreted as elementary principles governing the universe at supersmall scale. The author critically confronts the theory with Quantum Mechanics and Genera...

  5. 77 FR 66499 - Environmental Impact Statement: San Bernardino and Los Angeles Counties, CA

    Science.gov (United States)

    2012-11-05

    ... San Bernardino, 285 East Hospitality Lane, San Bernardino, California 92408 (2) Sheraton Ontario..., November 13, 2012 from 5-7 p.m. at the Hilton San Bernardino, 285 East Hospitality Lane, San Bernardino...

  6. Lubin-Tate extensions, an elementary approach

    International Nuclear Information System (INIS)

    Ershov, Yu L

    2007-01-01

    We give an elementary proof of the assertion that the Lubin-Tate extension L≥K is an Abelian extension whose Galois group is isomorphic to U K /N L/K (U L ) for arbitrary fields K that have Henselian discrete valuation rings with finite residue fields. The term 'elementary' only means that the proofs are algebraic (that is, no transcedental methods are used)

  7. 33 CFR 110.74c - Bahia de San Juan, PR.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Bahia de San Juan, PR. 110.74c Section 110.74c Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY ANCHORAGES ANCHORAGE REGULATIONS Special Anchorage Areas § 110.74c Bahia de San Juan, PR. The waters of San Antonio...

  8. Elementary number theory with programming

    CERN Document Server

    Lewinter, Marty

    2015-01-01

    A successful presentation of the fundamental concepts of number theory and computer programming Bridging an existing gap between mathematics and programming, Elementary Number Theory with Programming provides a unique introduction to elementary number theory with fundamental coverage of computer programming. Written by highly-qualified experts in the fields of computer science and mathematics, the book features accessible coverage for readers with various levels of experience and explores number theory in the context of programming without relying on advanced prerequisite knowledge and con

  9. San Francisco Accelerator Conference

    International Nuclear Information System (INIS)

    Southworth, Brian

    1991-01-01

    'Where are today's challenges in accelerator physics?' was the theme of the open session at the San Francisco meeting, the largest ever gathering of accelerator physicists and engineers

  10. Palinomorfos en las rocas de la formación San Cayetano, Pinar del Río, Cuba

    OpenAIRE

    Rolando García-Sánchez; Evelio Linares-Cala; Hernando Dueñas-Jiménez

    2003-01-01

    Se presenta una breve reseña de los estudios paleobotánicos realizados en la región y los resultados palinológicos obtenidos recientemente, que sugieren una edad Jurásico Medio para las muestras analizadas, así como ambientes de depósito marino nerítico interno y continentales. Se concluye que los sedimentos analizados no han sufrido los efectos de una elevada alteración térmica. La presencia de abundante materia orgánica en las muestras inspiró su estudio por el método geoquímico Rock- Eval ...

  11. Trouble Brewing in San Diego. Policy Brief

    Science.gov (United States)

    Buck, Stuart

    2010-01-01

    The city of San Diego will face enormous budgetary pressures from the growing deficits in public pensions, both at a state and local level. In this policy brief, the author estimates that San Diego faces total of $45.4 billion, including $7.95 billion for the county pension system, $5.4 billion for the city pension system, and an estimated $30.7…

  12. Corps sans organes et anamnèse

    DEFF Research Database (Denmark)

    Wilson, Alexander

    2011-01-01

    Je trace certains liens entre le corps sans organes de Deleuze et Guattari et les principes de l’organologie générale que décrit Bernard Stiegler.......Je trace certains liens entre le corps sans organes de Deleuze et Guattari et les principes de l’organologie générale que décrit Bernard Stiegler....

  13. Coastal Cactus Wren, San Diego Co. - 2009 [ds702

    Data.gov (United States)

    California Natural Resource Agency — The San Diego Multiple Species Conservation program (MSCP) was developed for the conservation of plants and animals in the southeast portion of San Diego County....

  14. Coastal Cactus Wren, San Diego Co. - 2011 [ds708

    Data.gov (United States)

    California Natural Resource Agency — The San Diego Multiple Species Conservation program (MSCP) was developed for the conservation of plants and animals in the southeast portion of San Diego County....

  15. Cacao use and the San Lorenzo Olmec

    Science.gov (United States)

    Powis, Terry G.; Cyphers, Ann; Gaikwad, Nilesh W.; Grivetti, Louis; Cheong, Kong

    2011-01-01

    Mesoamerican peoples had a long history of cacao use—spanning more than 34 centuries—as confirmed by previous identification of cacao residues on archaeological pottery from Paso de la Amada on the Pacific Coast and the Olmec site of El Manatí on the Gulf Coast. Until now, comparable evidence from San Lorenzo, the premier Olmec capital, was lacking. The present study of theobromine residues confirms the continuous presence and use of cacao products at San Lorenzo between 1800 and 1000 BCE, and documents assorted vessels forms used in its preparation and consumption. One elite context reveals cacao use as part of a mortuary ritual for sacrificial victims, an event that occurred during the height of San Lorenzo's power. PMID:21555564

  16. Mammal Track Counts - San Diego County, 2010 [ds709

    Data.gov (United States)

    California Natural Resource Agency — The San Diego Tracking Team (SDTT) is a non-profit organization dedicated to promoting the preservation of wildlife habitat in San Diego County through citizen-based...

  17. College and Career Readiness in Elementary Schools

    Science.gov (United States)

    Pulliam, Nicole; Bartek, Samantha

    2018-01-01

    This conceptual article will provide an in-depth exploration of the relevant literature focused on college and career readiness interventions in elementary schools. Beginning with a theoretical framework, a rationale is provided for early intervention by elementary school counselors. While professional guidelines and standards exist supporting…

  18. SANS observations on weakly flocculated dispersions

    DEFF Research Database (Denmark)

    Mischenko, N.; Ourieva, G.; Mortensen, K.

    1997-01-01

    Structural changes occurring in colloidal dispersions of poly-(methyl metacrylate) (PMMA) particles, sterically stabilized with poly-(12-hydroxystearic acid) (PHSA), while varying the solvent quality, temperature and shear rate, are investigated by small-angle neutron scattering (SANS......). For a moderately concentrated dispersion in a marginal solvent the transition on cooling from the effective stability to a weak attraction is monitored, The degree of attraction is determined in the framework of the sticky spheres model (SSM), SANS and rheological results are correlated....

  19. SANS-II at SINQ: Installation of the former Risø-SANS facility

    DEFF Research Database (Denmark)

    Strunz, P.; Mortensen, K.; Janssen, S.

    2004-01-01

    SANS-II facility at SINQ (Paul Scherrer Institute)-the reinstalled former Riso small-angle neutron scattering instrument-is presented. Its operational characteristics are listed. Approaches for precise determination of wavelength, detector dead time and attenuation factors are described as well. (C...

  20. Marketing San Juan Basin gas

    International Nuclear Information System (INIS)

    Posner, D.M.

    1988-01-01

    Marketing natural gas produced in the San Juan Basin of New Mexico and Colorado principally involves four gas pipeline companies with significant facilities in the basin. The system capacity, transportation rates, regulatory status, and market access of each of these companies is evaluated. Because of excess gas supplies available to these pipeline companies, producers can expect improved take levels and prices by selling gas directly to end users and utilities as opposed to selling gas to the pipelines for system supply. The complexities of transporting gas today suggest that the services of an independent gas marketing company may be beneficial to smaller producers with gas supplies in the San Juan Basin

  1. Transformation and reconstitution of Khoe-San identities : AAS le Fleur I, Griqua identities and post-apartheid Khoe-San revivalism (1894-2004)

    NARCIS (Netherlands)

    Besten, M.P.

    2006-01-01

    Focussing on AAS le fleur I (1867-1941), the Griqua, and post-apartheid Khoe-San revivalism, the dissertation examines changes in the articulation of Khoe-San identities in South-Africa. It shows the significance of shifting political, cultural and ideological power relations on the articulation of

  2. Geological literature on the San Joaquin Valley of California

    Science.gov (United States)

    Maher, J.C.; Trollman, W.M.; Denman, J.M.

    1973-01-01

    The following list of references includes most of the geological literature on the San Joaquin Valley and vicinity in central California (see figure 1) published prior to January 1, 1973. The San Joaquin Valley comprises all or parts of 11 counties -- Alameda, Calaveras, Contra Costa, Fresno, Kern, Kings, Madera, Merced, San Joaquin, Stanislaus, and Tulare (figure 2). As a matter of convenient geographical classification the boundaries of the report area have been drawn along county lines, and to include San Benito and Santa Clara Counties on the west and Mariposa and Tuolumne Counties on the east. Therefore, this list of geological literature includes some publications on the Diablo and Temblor Ranges on the west, the Tehachapi Mountains and Mojave Desert on the south, and the Sierra Nevada Foothills and Mountains on the east.

  3. 75 FR 61611 - Modification of Class E Airspace; San Clemente, CA

    Science.gov (United States)

    2010-10-06

    ... INFORMATION CONTACT: Eldon Taylor, Federal Aviation Administration, Operations Support Group, Western Service... extension to a Class D surface area, at San Clemente Island NALF (Fredrick Sherman Field), San Clemente, CA... within the scope of that authority as it amends controlled airspace at San Clemente Island NALF (Fredrick...

  4. Introducing Technology Education at the Elementary Level

    Science.gov (United States)

    McKnight, Sean

    2012-01-01

    Many school districts are seeing a need to introduce technology education to students at the elementary level. Pennsylvania's Penn Manor School District is one of them. Pennsylvania has updated science and technology standards for grades 3-8, and after several conversations the author had with elementary principals and the assistant superintendent…

  5. Elementary School Teachers and Teaching with Technology

    Science.gov (United States)

    Varol, Filiz

    2013-01-01

    This study aims to identify the relationship between elementary school teachers' ICT engagement with their attitudes towards technology. To this end, one hundred elementary school students were asked to fill out questionnaires related to their ICT knowledge, usage, and attitude towards technology. The results show that teachers' ICT knowledge and…

  6. Reform in Turkish Elementary Mathematics Curriculum

    OpenAIRE

    BABADOĞAN, Cem; OLKUN, Sinan

    2006-01-01

    Disappointed from such major international studies as TIMSS, PISA, PIRLS andsome internal indicators such as national university entrance examination, the Turkish Ministry ofNational Education initiated a massive reform movement in education. These reforms includedeveloping new curricula for both elementary and secondary education and developing teachercompetencies. The purpose of this paper is to present an evaluation of the elementary schoolmathematics curriculum, which is a part of the ref...

  7. 77 FR 34984 - Notice of Intent To Repatriate a Cultural Item: San Diego Museum of Man, San Diego, CA

    Science.gov (United States)

    2012-06-12

    ...The San Diego Museum of Man, in consultation with the appropriate Indian tribes, has determined that a cultural item meets the definition of unassociated funerary object and repatriation to the Indian tribes stated below may occur if no additional claimants come forward. Representatives of any Indian tribe that believes itself to be culturally affiliated with the cultural item may contact the San Diego Museum of Man.

  8. 40 CFR 81.176 - San Luis Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 17 2010-07-01 2010-07-01 false San Luis Intrastate Air Quality Control Region. 81.176 Section 81.176 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED... Quality Control Regions § 81.176 San Luis Intrastate Air Quality Control Region. The San Luis Intrastate...

  9. Elementary Children's Retrodictive Reasoning about Earth Science

    Science.gov (United States)

    Libarkin, Julie C.; Schneps, Matthew H.

    2012-01-01

    We report on interviews conducted with twenty-one elementary school children (grades 1-5) about a number of Earth science concepts. These interviews were undertaken as part of a teacher training video series designed specifically to assist elementary teachers in learning essential ideas in Earth science. As such, children were interviewed about a…

  10. L’Europe et les sans-papiers

    OpenAIRE

    Simonnot, Nathalie; Intrand, Caroline

    2013-01-01

    En Europe, les sans-papiers vivent des conditions socio-économiques particulièrement défavorables. Les systèmes de santé des pays européens sont peu performants pour le suivi des personnes sans papiers. Ils sont en outre souvent victimes de refus de soins. Pire, l’accès aux soins est dans certains pays progressivement instrumentalisé au profit du contrôle de l’immigration. Ces politiques grossissent les rangs des populations qui n’accèdent pas aux soins et doivent avoir recours à Médecins du ...

  11. A model for evaluating the environmental benefits of elementary school facilities.

    Science.gov (United States)

    Ji, Changyoon; Hong, Taehoon; Jeong, Kwangbok; Leigh, Seung-Bok

    2014-01-01

    In this study, a model that is capable of evaluating the environmental benefits of a new elementary school facility was developed. The model is composed of three steps: (i) retrieval of elementary school facilities having similar characteristics as the new elementary school facility using case-based reasoning; (ii) creation of energy consumption and material data for the benchmark elementary school facility using the retrieved similar elementary school facilities; and (iii) evaluation of the environmental benefits of the new elementary school facility by assessing and comparing the environmental impact of the new and created benchmark elementary school facility using life cycle assessment. The developed model can present the environmental benefits of a new elementary school facility in terms of monetary values using Environmental Priority Strategy 2000, a damage-oriented life cycle impact assessment method. The developed model can be used for the following: (i) as criteria for a green-building rating system; (ii) as criteria for setting the support plan and size, such as the government's incentives for promoting green-building projects; and (iii) as criteria for determining the feasibility of green building projects in key business sectors. Copyright © 2013 Elsevier Ltd. All rights reserved.

  12. Sleep Habits of Elementary and Middle School Children in South Texas.

    Science.gov (United States)

    Surani, Salim; Hesselbacher, Sean; Surani, Saherish; Sadasiva, Sreevidya; Surani, Zoya; Surani, Sara S; Khimani, Amina; Subramanian, Shyam

    2015-01-01

    Background. Sleep difficulties, including insufficient sleep and inadequate sleep hygiene, have been prevalent among children. Sleep deprivation can lead to poor grades, sleepiness, and moodiness. We undertook this study to assess the prevalence of sleep abnormalities among elementary and middle school students in South Texas and how the groups compare with one another. Method. After approval from the appropriate school district for a sleep education program, a baseline survey was taken of elementary and middle school students, using the Children's Sleep Habit Questionnaire-Sleep Self-Report Form, which assessed the domains of bedtime resistance, sleep onset delay, sleep anxiety, sleep duration, night awakening, and daytime sleepiness. Results. The survey was completed by 499 elementary and 1008 middle school children. Trouble sleeping was reported by 43% in elementary school, compared with 29% of middle school children. Fifty percent of middle school children did not like sleeping, compared with 26% in elementary school. Bedtime resistance, sleep onset delay, and nighttime awakening were more common among elementary school students. Daytime sleepiness was more common among the middle school children when compared to elementary school children. Conclusions. Sleep abnormalities are present in elementary school children with changes in sleep habits into middle school.

  13. Investigating the Self-Perceived Science Teaching Needs of Local Elementary Educators

    Science.gov (United States)

    Carver, Cynthia G.

    Elementary teachers in one school system have expressed low self-efficacy teaching science and desire more support teaching science. However, little research has been conducted on how best to meet these teachers' needs. The theories of perceived self-efficacy, social cognition, and behaviorism make up the conceptual framework of this study. The focus of this qualitative project study was on the needs of local elementary educators. These teachers were asked what they felt they needed most to be more effective science educators. The methodology of phenomenology was used in this study in which local elementary teachers were questioned in focus groups regarding their own science teaching efficacy and perceived needs. Using inductive analysis, data were coded for links to discussion questions as well as any additional patterns that emerged. Findings indicated that local elementary teachers desire improved communication among administrators and teachers as well as better science content support and training. Focus group participants agreed that teacher self-efficacy affects the time spent, effort toward, and quality of elementary science education. Using the results of the study, a science mentor program was developed to support the needs of elementary teachers and increase teacher self-efficacy, thus improving local elementary science education. Implications for positive social change include the development and support of elementary science programs in other school systems with the goal of improving science education for elementary students.

  14. Voice and Valency in San Luis Potosi Huasteco

    Science.gov (United States)

    Munoz Ledo Yanez, Veronica

    2014-01-01

    This thesis presents an analysis of the system of transitivity, voice and valency alternations in Huasteco of San Luis Potosi (Mayan) within a functional-typological framework. The study is based on spoken discourse and elicited data collected in the municipalities of Aquismon and Tancanhuitz de Santos in the state of San Luis Potosi, Mexico. The…

  15. Progress in elementary particle theory, 1950-1964

    International Nuclear Information System (INIS)

    Gell-Mann, M.

    1989-01-01

    This final chapter of the book lists advances in elementary particle theory from 1950 to 1964 in an order of progressive understanding of ideas rather than chronologically. Starting with quantum field theory and the important discoveries within it, the author explains the connections and items missing in this decade, but understood later. The second part of the chapter takes the same pattern, but deals with basic interactions (strong, electromagnetic, weak and gravitational) and elementary particles, including quarks. By 1985, theory had developed to such a degree that it was hoped that the long-sought-after unified field theory of all elementary particles and interactions of nature might be close at hand. (UK)

  16. Timber resource statistics for the San Joaquin and southern resource areas of California.

    Science.gov (United States)

    Karen L. Waddell; Patricia M. Bassett

    1997-01-01

    This report is a summary of timber resource statistics for the San Joaquin and Southern Resource Areas of California, which include Alpine, Amador, Calaveras, Fresno, Imperial, Inyo, Kern, Kings, Los Angeles, Madera, Mariposa, Merced, Mono, Orange, Riverside, San Bernardino, San Diego, San Joaquin, Stanislaus, Tulare, and Tuolumne Counties. Data were collected as part...

  17. Communication and Stakeholder Engagement at Brighouse Elementary

    Science.gov (United States)

    Drew, Robert

    2011-01-01

    The Samuel Brighouse Elementary School, located in Richmond, BC, a city adjacent to Vancouver on the west coast of Canada, is a five-hundred student elementary school. When completed in September 2011, it will replace an existing older school on the same site. This project was identified early on as an opportunity for the Richmond School Board to…

  18. The green areas of San Juan, Puerto Rico

    Directory of Open Access Journals (Sweden)

    Olga M. Ramos-González

    2014-09-01

    Full Text Available Green areas, also known as green infrastructure or urban vegetation, are vital to urbanites for their critical roles in mitigating urban heat island effects and climate change and for their provision of multiple ecosystem services and aesthetics. Here, I provide a high spatial resolution snapshot of the green cover distribution of the city of San Juan, Puerto Rico, by incorporating the use of morphological spatial pattern analysis (MSPA as a tool to describe the spatial pattern and connectivity of the city's urban green areas. Analysis of a previously developed IKONOS 4-m spatial resolution classification of the city of San Juan from 2002 revealed a larger area of vegetation (green areas or green infrastructure than previously estimated by moderate spatial resolution imagery. The city as a whole had approximately 42% green cover and 55% impervious surfaces. Although the city appeared greener in its southern upland sector compared to the northern coastal section, where most built-up urban areas occurred (66% impervious surfaces, northern San Juan had 677 ha more green area cover dispersed across the city than the southern component. MSPA revealed that most forest cover occurred as edges and cores, and green areas were most commonly forest cores, with larger predominance in the southern sector of the municipality. In dense, built-up, urban land, most of the green areas occurred in private yards as islets. When compared to other cities across the United States, San Juan was most similar in green cover features to Boston, Massachusetts, and Miami, Florida. Per capita green space for San Juan (122.2 m²/inhabitant was also comparable to these two U.S. cities. This study explores the intra-urban vegetation variation in the city of San Juan, which is generally overlooked by moderate spatial resolution classifications in Puerto Rico. It serves as a starting point for green infrastructure mapping and landscape pattern analysis of the urban green spaces

  19. Elementary particles and particle interactions

    International Nuclear Information System (INIS)

    Bethge, K.; Schroeder, U.E.

    1986-01-01

    This book is a textbook for an introductory course of elementary particle physics. After a general introduction the symmetry principles governing the interactions of elementary particles are discussed. Then the phenomenology of the electroweak and strong interactions are described together with a short introduction to the Weinberg-Salam theory respectively to quantum chromodynamics. Finally a short outlook is given to grand unification with special regards to SU(5) and cosmology in the framework of the current understanding of the fundamental principles of nature. In the appendix is a table of particle properties and physical constants. (HSI) [de

  20. Elementary particles physics

    International Nuclear Information System (INIS)

    1990-01-01

    It is discussed the physics in Brazil in the next decade with regard to elementary particles and field theories. The situation of brazilian research institutes as well as its personnel is also presented. Some recommendations and financing of new projects are also considered. (A.C.A.S.)

  1. Sleep Habits of Elementary and Middle School Children in South Texas

    Directory of Open Access Journals (Sweden)

    Salim Surani

    2015-01-01

    Full Text Available Background. Sleep difficulties, including insufficient sleep and inadequate sleep hygiene, have been prevalent among children. Sleep deprivation can lead to poor grades, sleepiness, and moodiness. We undertook this study to assess the prevalence of sleep abnormalities among elementary and middle school students in South Texas and how the groups compare with one another. Method. After approval from the appropriate school district for a sleep education program, a baseline survey was taken of elementary and middle school students, using the Children’s Sleep Habit Questionnaire-Sleep Self-Report Form, which assessed the domains of bedtime resistance, sleep onset delay, sleep anxiety, sleep duration, night awakening, and daytime sleepiness. Results. The survey was completed by 499 elementary and 1008 middle school children. Trouble sleeping was reported by 43% in elementary school, compared with 29% of middle school children. Fifty percent of middle school children did not like sleeping, compared with 26% in elementary school. Bedtime resistance, sleep onset delay, and nighttime awakening were more common among elementary school students. Daytime sleepiness was more common among the middle school children when compared to elementary school children. Conclusions. Sleep abnormalities are present in elementary school children with changes in sleep habits into middle school.

  2. Sediment transport of streams tributary to San Francisco, San Pablo, and Suisun Bays, California, 1909-66

    Science.gov (United States)

    Porterfield, George

    1980-01-01

    A review of historical sedimentation data is presented, results of sediment-data collection for water years 1957-59 are summarized, and long-term sediment-discharge estimates from a preliminary report are updated. Comparison of results based on 3 years of data to those for the 10 water years, 1957-66, provides an indication of the adequacy of the data obtained during the short period to define the long-term relation between sediment transport and streamflow. During 1909-66, sediment was transported to the entire San Francisco Bay system at an average rate of 8.6 million cubic yards per year. The Sacramento and San Joaquin River basins provided about 83% of the sediment inflow to the system annually during 1957-66 and 86% during 1909-66. About 98% of this inflow was measured or estimated at sediment measuring sites. Measured sediment inflow directly to the bays comprised only about 40% of the total discharged by basins directly tributary to the bays. About 90% of the total sediment discharge to the delta and the bays in the San Francisco Bay system thus was determined on the basis of systematic measurements. (USGS)

  3. Elementary School Psychologists and Response to Intervention (RTI)

    Science.gov (United States)

    Little, Suzanne; Marrs, Heath; Bogue, Heidi

    2017-01-01

    The implementation of Response to Intervention (RTI) in elementary schools may have important implications for school psychologists. Therefore, it is important to better understand how elementary school psychologists perceive RTI and what barriers to successful RTI implementation they identify. Although previous research has investigated the…

  4. San Andreas tremor cascades define deep fault zone complexity

    Science.gov (United States)

    Shelly, David R.

    2015-01-01

    Weak seismic vibrations - tectonic tremor - can be used to delineate some plate boundary faults. Tremor on the deep San Andreas Fault, located at the boundary between the Pacific and North American plates, is thought to be a passive indicator of slow fault slip. San Andreas Fault tremor migrates at up to 30 m s-1, but the processes regulating tremor migration are unclear. Here I use a 12-year catalogue of more than 850,000 low-frequency earthquakes to systematically analyse the high-speed migration of tremor along the San Andreas Fault. I find that tremor migrates most effectively through regions of greatest tremor production and does not propagate through regions with gaps in tremor production. I interpret the rapid tremor migration as a self-regulating cascade of seismic ruptures along the fault, which implies that tremor may be an active, rather than passive participant in the slip propagation. I also identify an isolated group of tremor sources that are offset eastwards beneath the San Andreas Fault, possibly indicative of the interface between the Monterey Microplate, a hypothesized remnant of the subducted Farallon Plate, and the North American Plate. These observations illustrate a possible link between the central San Andreas Fault and tremor-producing subduction zones.

  5. Olympiads for Elementary Schools.

    Science.gov (United States)

    Lenchner, George

    1985-01-01

    The goals and history of the Mathematical Olympiads for Elementary Schools are described. Teams, levels, and gender are discussed, as well as teacher training, administration, scoring, and awards. Sample problems are included. (MNS)

  6. Hydrologic assessment and numerical simulation of groundwater flow, San Juan Mine, San Juan County, New Mexico, 2010–13

    Science.gov (United States)

    Stewart, Anne M.

    2018-04-03

    Coal combustion byproducts (CCBs), which are composed of fly ash, bottom ash, and flue gas desulfurization material, produced at the coal-fired San Juan Generating Station (SJGS), located in San Juan County, New Mexico, have been buried in former surface-mine pits at the San Juan Mine, also referred to as the San Juan Coal Mine, since operations began in the early 1970s. This report, prepared by the U.S. Geological Survey in cooperation with the Mining and Minerals Division of the New Mexico Energy, Minerals and Natural Resources Department, describes results of a hydrogeologic assessment, including numerical groundwater modeling, to identify the timing of groundwater recovery and potential pathways for groundwater transport of metals that may be leached from stored CCBs and reach hydrologic receptors after operations cease. Data collected for the hydrologic assessment indicate that groundwater in at least one centrally located reclaimed surface-mining pit has already begun to recover.The U.S. Geological Survey numerical modeling package MODFLOW–NWT was used with MODPATH particle-tracking software to identify advective flow paths from CCB storage areas toward potential hydrologic receptors. Results indicate that groundwater at CCB storage areas will recover to the former steady state, or in some locations, groundwater may recover to a new steady state in 6,600 to 10,600 years at variable rates depending on the proximity to a residual cone-of-groundwater depression caused by mine dewatering and regional oil and gas pumping as well as on actual, rather than estimated, groundwater recharge and evapotranspirational losses. Advective particle-track modeling indicates that the number of particles and rates of advective transport will vary depending on hydraulic properties of the mine spoil, particularly hydraulic conductivity and porosity. Modeling results from the most conservative scenario indicate that particles can migrate from CCB repositories to either the

  7. Effectiveness of Kampo medicine Gorei-san for chronic subdural hematoma

    International Nuclear Information System (INIS)

    Miyagami, Mitsusuke; Kagawa, Yukihide

    2009-01-01

    Chronic subdural hematomas (CSDHs) are basically treated by surgery. In some cases with no or minimum symptoms, however, they may be treated conservatively. In the present study, we evaluated the therapeutic effect of a Kampo medicine (Japanese traditional herbal medicine), Gorei-san, in the treatment of those CSDHs. Gorei-san 7.5 g t.i.d. was orally administered for 4 weeks in 22 patients with 27 CSDHs. Maximum thickness of the hematoma was followed up on CT scan for 4 to 29 weeks after administration of Gorei-san. In 7 of 22 patients, tranexamic acid and/or carbazochrome sodium sulfonate were also administrated. Gorei-san was effective in 23 of 27 CSDHs. In 12 of them, the hematoma was completely disappeared within 14 weeks after administration. In the other 11 CSDHs, the thickness was decreased. In those effective cases, thickness began to decrease 3 to 4 weeks after administration of Gorei-san. It was more effective in CSDHs with iso-/high or mixed density than with low density on CT. It was not effective in 4 out of 27 CSDHs. No apparent adverse effect was noted in the present series of patients. The present study suggests that a Kampo medicine, Gorei-san, is a useful option in the conservative treatment of CSDHs with no or minimum symptoms. (author)

  8. Kinetic studies of elementary chemical reactions

    Energy Technology Data Exchange (ETDEWEB)

    Durant, J.L. Jr. [Sandia National Laboratories, Livermore, CA (United States)

    1993-12-01

    This program concerning kinetic studies of elementary chemical reactions is presently focussed on understanding reactions of NH{sub x} species. To reach this goal, the author is pursuing experimental studies of reaction rate coefficients and product branching fractions as well as using electronic structure calculations to calculate transition state properties and reaction rate calculations to relate these properties to predicted kinetic behavior. The synergy existing between the experimental and theoretical studies allow one to gain a deeper insight into more complex elementary reactions.

  9. Quantum Black Holes As Elementary Particles

    OpenAIRE

    Ha, Yuan K.

    2008-01-01

    Are black holes elementary particles? Are they fermions or bosons? We investigate the remarkable possibility that quantum black holes are the smallest and heaviest elementary particles. We are able to construct various fundamental quantum black holes: the spin-0, spin 1/2, spin-1, and the Planck-charge cases, using the results in general relativity. Quantum black holes in the neighborhood of the Galaxy could resolve the paradox posed by the Greisen-Zatsepin-Kuzmin limit on the energy of cosmi...

  10. 75 FR 65985 - Safety Zone: Epic Roasthouse Private Party Firework Display, San Francisco, CA

    Science.gov (United States)

    2010-10-27

    ... the navigable waters of San Francisco Bay 1,000 yards off Epic Roasthouse Restaurant, San Francisco.... Wright, Program Manager, Docket Operations, telephone 202-366-9826. SUPPLEMENTARY INFORMATION: Regulatory... waters of San Francisco Bay, 1,000 yards off Epic Roasthouse Restaurant, San Francisco, CA. The fireworks...

  11. Non-Print Social Studies Materials--Elementary School Level.

    Science.gov (United States)

    Lynn, Karen

    Types of non-print social studies materials developed for presentation to, and use by, elementary school students are identified. "Non-print" materials include films, filmstrips, video cassettes, audio recordings, computer databases, telecommunications, and hypertext. An explanation of why elementary school students can benefit from the use of…

  12. Preparing Elementary Prospective Teachers to Teach Early Algebra

    Science.gov (United States)

    Hohensee, Charles

    2017-01-01

    Researchers have argued that integrating early algebra into elementary grades will better prepare students for algebra. However, currently little research exists to guide teacher preparation programs on how to prepare prospective elementary teachers to teach early algebra. This study examines the insights and challenges that prospective teachers…

  13. A note on the complexity of finding and enumerating elementary modes.

    NARCIS (Netherlands)

    Acuna, V.; Marchetti-Spaccamela, A.; Sagot, M.-F.; Stougie, L.

    2010-01-01

    In the context of the study into elementary modes of metabolic networks, we prove two complexity results. Enumerating elementary modes containing a specific reaction is hard in an enumeration complexity sense. The decision problem if there exists an elementary mode containing two specific reactions

  14. Elementary particle interactions

    International Nuclear Information System (INIS)

    Bugg, W.M.; Condo, G.T.; Handler, T.; Hart, E.L.; Ward, B.F.L.; Close, F.E.; Christophorou, L.G.

    1990-10-01

    This report discusses freon bubble chamber experiments exposed to μ + and neutrinos, photon-proton interactions; shower counter simulations; SLD detectors at the Stanford Linear Collider, and the detectors at the Superconducting Super Collider; elementary particle interactions; physical properties of dielectric materials used in High Energy Physics detectors; and Nuclear Physics

  15. 75 FR 42014 - Proposed Amendment of Class E Airspace; San Clemente, CA

    Science.gov (United States)

    2010-07-20

    ...: Eldon Taylor, Federal Aviation Administration, Operations Support Group, Western Service Center, 1601... an extension to a Class D surface area, at San Clemente Island NALF (Fredrick Sherman Field), San... Clemente Island NALF (Fredrick Sherman Field), CA (Lat. 33[deg]01'22'' N., long. 118[deg]35'19'' W.) San...

  16. 78 FR 42027 - Safety Zone; San Diego Bayfair; Mission Bay, San Diego, CA

    Science.gov (United States)

    2013-07-15

    ... safety zones. Thunderboats Unlimited Inc. is sponsoring San Diego Bayfair, which is held on the navigable... distribution of power and responsibilities between the Federal Government and Indian tribes. 12. Energy Effects This proposed rule is not a ``significant energy action'' under Executive Order 13211, Actions...

  17. A Research on the Impact of Internet Use in American Elementary School Libraries

    Directory of Open Access Journals (Sweden)

    Feng-Hsiung Hou

    2003-03-01

    Full Text Available The purpose of this research was to explore the impact of Internet use in American elementary school libraries operations and to find the best way for use Internet tools in elementary school libraries operations. This study may offer important information about the impact of Internet usage for elementary school library s operations. The research question was: Is the Internet usage having significant impact for organizational operations in the American elementary school libraries? This study employed survey research to conduct the research process. Research participants were 50 administrators in 50 elementary school libraries; Texas, U.S.A. Descriptive statistics was used to analyze the impact of Internet applied in the elementary school libraries. Results indicated that there was a significant impact of the Internet usage in American elementary school libraries operations. The author suggests that elementary school libraries organizational leaders need pay attention to the impact of Internet usage in their business and they also need plan how to utilize the Internet into their elementary school libraries in the future.

  18. Chemical and Physical Characteristics of Pulverized Granitic Rock Adjacent to the San Andreas, Garlock and San Jacinto Faults: Implications for Earthquake Physics

    Science.gov (United States)

    Rockwell, T. K.; Sisk, M.; Stillings, M.; Girty, G.; Dor, O.; Wechsler, N.; Ben-Zion, Y.

    2008-12-01

    We present new detailed analyses of pulverized granitic rocks from sections adjacent to the San Andreas, Garlock and San Jacinto faults in southern California. Along the San Andreas and Garlock faults, the Tejon Lookout Granite is pulverized in all exposures within about 100 m of both faults. Along the Clark strand of the San Jacinto fault in Horse Canyon, the pulverization of granitic rocks is highly asymmetric, with a much broader zone of pulverization along the southwest side of the Clark fault. In areas where the granite is injected as dyke rock into schist, only the granitic rock shows pulverization, demonstrating the control of rock type on the pulverization process. Chemical analyses indicate little or no weathering in the bulk of the rock, although XRD analysis shows the presence of smectite, illite, and minor kaolinite in the clay-sized fraction. Weathering products may dominate in the less than 1 micron fraction. The average grain size in all samples of pulverized granitic rock range between about 20 and 200 microns (silt to fine sand), with the size distribution in part a function of proximity to the primary slip zone. The San Andreas fault samples are generally finer than those collected from along the Garlock or San Jacinto faults. The particle size distribution for all samples is non-fractal, with a distinct slope break in the 60-100 micron range, which suggests that pulverization is not a consequence of direct shear. This average particle size is quite coarser than previous reports, which we attribute to possible measurement errors in the prior work. Our data and observations suggest that dynamic fracturing in the wall rock of these three major faults only accounts for 1% or less of the earthquake energy budget.

  19. 77 FR 60897 - Safety Zone: America's Cup World Series Finish-Line, San Francisco, CA

    Science.gov (United States)

    2012-10-05

    ... navigable waters of the San Francisco Bay in vicinity of San Francisco West Yacht Harbor Light 2... vicinity of San Francisco West Yacht Harbor Light 2. Unauthorized persons or vessels are prohibited from... San Francisco West Yacht Harbor Light 2. This safety zone establishes a temporary restricted area on...

  20. San Juanico Hybrid System Technical and Institutional Assessment: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Corbus, D.; Newcomb, C.; Yewdall, Z.

    2004-07-01

    San Juanico is a fishing village of approximately 120 homes in the Municipality of Comondu, Baja California. In April, 1999, a hybrid power system was installed in San Juanico to provide 24-hour power, which was not previously available. Before the installation of the hybrid power system, a field study was conducted to characterize the electrical usage and institutional and social framework of San Juanico. One year after the installation of the hybrid power system a''post-electrification'' study was performed to document the changes that had occurred after the installation. In December of 2003, NREL visited the site to conduct a technical assessment of the system.

  1. Steam, solarization, and tons of prevention: the San Francisco Public Utilities Commission's fight to contain Phytophthoras in San Francisco Bay area restoration sites

    Science.gov (United States)

    Greg Lyman; Jessica Appel; Mia Ingolia; Ellen Natesan; Joe Ortiz

    2017-01-01

    To compensate for unavoidable impacts associated with critical water infrastructure capital improvement projects, the San Francisco Public Utilities Commission (SFPUC) restored over 2,050 acres of riparian, wetland, and upland habitat on watershed lands in Alameda, Santa Clara, and San Mateo Counties. Despite strict bio-sanitation protocols, plant pathogens (...

  2. Future Elementary School Teachers' Conceptual Change Concerning Photosynthesis

    Science.gov (United States)

    Ahopelto, Ilona; Mikkila-Erdmann, Mirjamaija; Anto, Erkki; Penttinen, Marjaana

    2011-01-01

    The purpose of this study was to examine conceptual change among future elementary school teachers while studying a scientific text concerning photosynthesis. Students' learning goals in relation to their learning outcomes were also examined. The participants were future elementary school teachers. The design consisted of pre- and post-tests. The…

  3. Classical versus Computer Algebra Methods in Elementary Geometry

    Science.gov (United States)

    Pech, Pavel

    2005-01-01

    Computer algebra methods based on results of commutative algebra like Groebner bases of ideals and elimination of variables make it possible to solve complex, elementary and non elementary problems of geometry, which are difficult to solve using a classical approach. Computer algebra methods permit the proof of geometric theorems, automatic…

  4. Safety Education in the Elementary School. Fastback 170.

    Science.gov (United States)

    Wayne, Joseph E.

    This pamphlet deals with incorporating effective safety education programs into the elementary school curriculum. Covered in a discussion of the scope and nature of the safety problem are classes of accidents (motor vehicle, home, work, and public accidents) and causes of accidents. Various functions of safety education in elementary schools are…

  5. Generalized elementary functions

    Czech Academy of Sciences Publication Activity Database

    Monteiro, Giselle Antunes; Slavík, A.

    2014-01-01

    Roč. 411, č. 2 (2014), s. 838-852 ISSN 0022-247X Institutional support: RVO:67985840 Keywords : elementary functions * Kurzweil-Stieltjes integral * generalized linear ordinary differential equations * time scale calculus Subject RIV: BA - General Mathematics Impact factor: 1.120, year: 2014 http://www.sciencedirect.com/science/article/pii/S0022247X13009141

  6. Effect of the SQ4R Technique on the Reading Comprehension of Elementary School 4th Grade Elementary School Students

    Science.gov (United States)

    Basar, Murat; Gürbüz, Mehmet

    2017-01-01

    The aim of this study is to examine the effect of SQ4R (Survey, Question, Read, Reflect, Recite, Review) technique of the reading comprehension ability of elementary school 4th grade students. The sampling was constituted by 57 students from two different branches of the Ataturk Elementary School in the center of Usak region during the 2nd…

  7. Effects of Choto-san (Diao-Teng-San) on microcirculation of bulbar conjunctiva and hemorheological factors in patients with asymptomatic cerebral infarction

    OpenAIRE

    YANG, Qiao; Kita, Toshiaki; Hikiami, Hiroaki; Shimada, Yutaka; Itoh, Takashi; Terasawa, Katsutoshi

    1999-01-01

    In this study, the effects of Choto-san ( 釣藤散 ) on the microcirculation of bulbar conjunctiva in 16 patients with asymptornatic cerebral infarction were investigated with a video-microscopic system. After the administration of Choto-san for four weeks, variables of microcirculatory flow of the bulbar conjunctiva, that is, the internal diameter of vessels, flow velocity and flow volume rate were increased (p

  8. Riparian Habitat - San Joaquin River

    Data.gov (United States)

    California Natural Resource Agency — The immediate focus of this study is to identify, describe and map the extent and diversity of riparian habitats found along the main stem of the San Joaquin River,...

  9. Neutron beam applications - Polymer study and sample environment development for HANARO SANS instrument

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Hong Doo [Kyunghee University, Seoul (Korea); Char, Kook Heon [Seoul National University, Seoul (Korea)

    2000-04-01

    A new SANS instrument will be installed in HANARO reactor near future and in parallel it is necessary to develop the sample environment facilities. One of the basic items is the equipment to control the sample temperature of cell block with auto-sample changer. It is required to develop a control software for this purpose. In addition, softwares of the aquisition and analysis for SANS instrument must be developed and supplied in order to function properly. PS/PI block copolymer research in NIST will provide the general understanding of SANS instrument and instrument-related valuable informations such as standard sample for SANS and know-hows of the instrument building. The following are the results of this research. a. Construction of sample cell block. b. Software to control the temperature and auto-sample changer. c. Acquisition of the SANS data analysis routine and its modification for HANARO SANS. d. PS/PI block copolymer research in NIST. e. Calibration data of NIST and HANARO SANS for comparison. 39 figs., 2 tabs. (Author)

  10. 33 CFR 80.1130 - San Luis Obispo Bay, CA.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false San Luis Obispo Bay, CA. 80.1130 Section 80.1130 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY INTERNATIONAL NAVIGATION RULES COLREGS DEMARCATION LINES Pacific Coast § 80.1130 San Luis Obispo Bay, CA. A line drawn from...

  11. Curricular Pillars in the Elementary General Music Classroom

    Science.gov (United States)

    Howell, Allen C.

    2009-01-01

    Karen, a veteran elementary general music teacher, was bewildered when she learned that none of her students remembered "Peter and the Wolf," a music lesson they have encountered in the past. Conscientious beginning elementary general music teachers like Karen may work diligently to plan instruction that will ensure that national, state, and local…

  12. San Antonio Bay 1986-1989

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The effect of salinity on utilization of shallow-water nursery habitats by aquatic fauna was assessed in San Antonio Bay, Texas. Overall, 272 samples were collected...

  13. San Gregorio mining: general presentation of the enterprise

    International Nuclear Information System (INIS)

    1997-01-01

    This work is a project presented by San Gregorio Mine.This company is responsible for the extraction and gold ore deposits benefits in San Gregorio and East extension in Minas de Corrales. For this project was carried out an environmental impact study as well as and agreement with the LATU for the laboratory analyzes and the surface and groundwater monitoring within the Environmental program established by the Company

  14. Resource Letter HEPP-1: History of elementary-particle physics

    International Nuclear Information System (INIS)

    Hovis, R.C.; Kragh, H.

    1991-01-01

    This Resource Letter provides a guide to literature on the history of modern elementary-particle physics. Histories that treat developments from the 1930s through the 1980s are focused on and a sampling is included of the historiography covering the period c. 1890--1930, the prehistory of elementary-particle physics as a discipline. Also included are collections of scientific papers, which might be especially valuable to individuals who wish to undertake historical research on particular scientists or subfields of elementary-particle physics. The introduction presents some statistical data and associated references for elementary-particle physics and surveys historiographical approaches and issues that are represented in historical accounts in the bibliography. All references are assigned a rating of E (Elementary), I (Intermediate), or A (Advanced) based on their technical or conceptual difficulty or their appropriateness for a person attempting a graduated study of the history of modern particle physics. That is, items labeled E are suitable for the layman or would be fundamental to a beginning exploration of the history of particle physics, whereas items labeled A are technically demanding (mathematically, historiographically, or philosophically) or would be most appropriate for specialized or advanced examinations of various topics

  15. Recent advances in elementary particle physics

    International Nuclear Information System (INIS)

    Zepeda, D.A.

    1985-01-01

    A brief review of recent successful results in elementary particle physics, as well as of those problems which may be dealt with in the present of near future is presented. A description of elementary particles and their interactions as they are presently conceived is given. The standard model of electroweak interactions is discussed in detail and the relevance of the recent discovery of the intermediate bosons W + and Z is analized. Finally, the weak features of the standard model and the theories which solve these problems are pointed out. (author)

  16. Synthesis of multivalued quantum logic circuits by elementary gates

    Science.gov (United States)

    Di, Yao-Min; Wei, Hai-Rui

    2013-01-01

    We propose the generalized controlled X (gcx) gate as the two-qudit elementary gate, and based on Cartan decomposition, we also give the one-qudit elementary gates. Then we discuss the physical implementation of these elementary gates and show that it is feasible with current technology. With these elementary gates many important qudit quantum gates can be synthesized conveniently. We provide efficient methods for the synthesis of various kinds of controlled qudit gates and greatly simplify the synthesis of existing generic multi-valued quantum circuits. Moreover, we generalize the quantum Shannon decomposition (QSD), the most powerful technique for the synthesis of generic qubit circuits, to the qudit case. A comparison of ququart (d=4) circuits and qubit circuits reveals that using ququart circuits may have an advantage over the qubit circuits in the synthesis of quantum circuits.

  17. Estimating natural recharge in San Gorgonio Pass watersheds, California, 1913–2012

    Science.gov (United States)

    Hevesi, Joseph A.; Christensen, Allen H.

    2015-12-21

    A daily precipitation-runoff model was developed to estimate spatially and temporally distributed recharge for groundwater basins in the San Gorgonio Pass area, southern California. The recharge estimates are needed to define transient boundary conditions for a groundwater-flow model being developed to evaluate the effects of pumping and climate on the long-term availability of groundwater. The area defined for estimating recharge is referred to as the San Gorgonio Pass watershed model (SGPWM) and includes three watersheds: San Timoteo Creek, Potrero Creek, and San Gorgonio River. The SGPWM was developed by using the U.S. Geological Survey INFILtration version 3.0 (INFILv3) model code used in previous studies of recharge in the southern California region, including the San Gorgonio Pass area. The SGPWM uses a 150-meter gridded discretization of the area of interest in order to account for spatial variability in climate and watershed characteristics. The high degree of spatial variability in climate and watershed characteristics in the San Gorgonio Pass area is caused, in part, by the high relief and rugged topography of the area.

  18. Upper Elementary Grades Bear the Brunt of Accountability

    Science.gov (United States)

    Anderson, Lorin W.

    2009-01-01

    Upper elementary teachers won't be surprised to learn that in every state, students enrolled in grades 3 through 8 bear the brunt of educational accountability. All states test all students at these grade levels in English/language arts and mathematics. Furthermore, an increasing number of states are testing students at selected elementary and…

  19. Timber resource statistics for the San Joaquin and southern California resource areas.

    Science.gov (United States)

    Bruce Hiserote; Joel Moen; Charles L. Bolsinger

    1986-01-01

    This report is one of five that provide timber resource statistics for 57 of the 58 counties in California (San Francisco is excluded). This report presents statistics from a 1982-84 inventory of the timber resources of Alpine, Amador, Calaveras, Fresno, Imperial, Inyo, Kern, Kings, Los Angeles, Madera, Mariposa, Merced, Mono, Orange, Riverside, San Bernardino, San...

  20. Dimensional considerations about elementary particles

    International Nuclear Information System (INIS)

    Cocconi, G.

    1978-01-01

    The search for fundamental elementary particles responsible for the observed behaviour of matter during the past decades is briefly reviewed, and the possibility is considered that the four fundamental interactions that shape things merge into a unique field when matter is so compressed that particles are at extremely small distances from one another. These interactions are the gravitational interaction, the electromagnetic interaction, the strong interaction, and the weak interaction. It is thought that a simple geometrical criterion, termed the 'elementary criterion', would suffice to indicate how the various interactions should behave as particles are brought closer to one another and thus approach the situation where all interactions merge. (6 references). (U.K.)

  1. A simulation of the San Andreas fault experiment

    Science.gov (United States)

    Agreen, R. W.; Smith, D. E.

    1974-01-01

    The San Andreas fault experiment (Safe), which employs two laser tracking systems for measuring the relative motion of two points on opposite sides of the fault, has been simulated for an 8-yr observation period. The two tracking stations are located near San Diego on the western side of the fault and near Quincy on the eastern side; they are roughly 900 km apart. Both will simultaneously track laser reflector equipped satellites as they pass near the stations. Tracking of the Beacon Explorer C spacecraft has been simulated for these two stations during August and September for 8 consecutive years. An error analysis of the recovery of the relative location of Quincy from the data has been made, allowing for model errors in the mass of the earth, the gravity field, solar radiation pressure, atmospheric drag, errors in the position of the San Diego site, and biases and noise in the laser systems. The results of this simulation indicate that the distance of Quincy from San Diego will be determined each year with a precision of about 10 cm. Projected improvements in these model parameters and in the laser systems over the next few years will bring the precision to about 1-2 cm by 1980.

  2. 75 FR 39166 - Safety Zone; San Francisco Giants Baseball Game Promotion, San Francisco, CA

    Science.gov (United States)

    2010-07-08

    ... San Francisco, CA. The fireworks display is meant for entertainment purposes. This safety zone is... National Technology Transfer and Advancement Act (NTTAA) (15 U.S.C. 272 note) directs agencies to use...), of the Instruction. This rule involves establishing, disestablishing, or changing Regulated...

  3. INITIATIVES AND SUGGESTIONS FOR INTRODUCTION OF GYMNASTICS IN ELEMENTARY SCHOOLS OF THE PRINCIPALITY OF SERBIA (elementary schools, gymnastics, initiatives, suggestions, introduction

    Directory of Open Access Journals (Sweden)

    Slađana Mijatović

    2006-06-01

    Full Text Available Upon gaining its autonomy in 1830, the Principality of Serbia also creates the conditions for faster development of education, since the Sultan’s edict granted it the right to open schools. The first Law on schools was passed at the suggestion of the Head of the Ministry of Education Jovan Sterija Popovic in 1844 (Ustrojenije javnog učilištnog nastavlenija, and predicted a complete organization of all schools: elementary, commercial, high and lycees. The Law also prescribed three years of elementary education in villages and four years in towns. For the first time education of female children is predicted“Law on structure of elementary schools” was passed in September 1863 and it predicted the introduction of the fourth grade in village schools. Thirty-eight years (1830-1868 passed from obtaining autonomy, i.e. the right in Serbia to open its schools, to the official introduction of the physical activity instruction in elementary schools. It was a period in which it was attempted to organize structure and work of elementary schools. However physical education used to appear in pedagogic literature, drafts of laws on schools and proposals of officials and schools commissions of the Ministry of Education of the Principality of Serbia: 1. Milovan Spasic had hold an office of the main school principal since 1845 and he wrote three books, as the main reference books for elementary school teachers. One of them is “Pedagogično metodično nastavlenije ya učitelje osnovnih škola” (1855 where he wrote about physical education of children. Although physical education was not present in the Curriculum, he treated it as the most important task of both teachers and parents. 2. In the “Projekt zakona o školama za Knjažestvo Srbije” (1859 where you can find the subjects to be taught in elementary schools, it was stated that “as on of the subjects for boys ‘physical practice’ and ‘gymnastics’ for girls should be taught.” 3

  4. Can Elementary Students Gather Information from Concept Maps?

    Science.gov (United States)

    Marulcu, Ismail; Karakuyu, Yunus; Dogan, Mevlut

    2013-01-01

    In this study, we investigated whether concept maps were used as often and as effectively in elementary science and technology classrooms as recommended by the National Ministry of Education (MEB) in the new curricula in Turkey. In the new elementary science and technology curricula, the MEB provides a general concept map for each unit. We used…

  5. System Thinking Skills at the Elementary School Level

    Science.gov (United States)

    Assaraf, Orit Ben-Zvi; Orion, Nir

    2010-01-01

    This study deals with the development of system thinking skills at the elementary school level. It addresses the question of whether elementary school students can deal with complex systems. The sample included 40 4th grade students from one school in a small town in Israel. The students studied an inquiry-based earth systems curriculum that…

  6. Elementary Algebra + Student-Written Web Illustrations = Math Mastery.

    Science.gov (United States)

    Veteto, Bette R.

    This project focuses on the construction and use of a student-made elementary algebra tutorial World Wide Web page at the University of Memphis (Tennessee), how this helps students further explore the topics studied in elementary algebra, and how students can publish their work on the class Web page for use by other students. Practical,…

  7. Teaching science as argument: Prospective elementary teachers' knowledge

    Science.gov (United States)

    Barreto-Espino, Reizelie

    For the past two decades there has been increasing emphasis on argumentation in school science. In 2007, the National Research Council published a synthesis report that emphasizes the centrality of constructing, evaluating, and using scientific explanations. Participating in argumentation is seen as fundamental to children's science learning experiences. These new expectations increase challenges for elementary teachers since their understanding of and experiences with science are overwhelmingly inconsistent with teaching science as argument. These challenges are further amplified when dealing with prospective elementary teachers. The current study was guided by the following research questions: (1) What are the ways in which preservice elementary teachers appropriate components of "teaching science as argument" during their student teaching experience? (2) To what extent do components from prospective elementary teachers' reflections influence planning for science teaching? (3) What elements from the context influence preservice elementary teachers' attention to teaching science as argument? This study followed a multi-participant case study approach and analyses were informed by grounded theory. Three participants were selected from a larger cohort of prospective elementary teachers enrolled in an innovative Elementary Professional Development School (PDS) partnership at a large Northeast University. Cross-case analysis allowed for the development of five key assertions: (1) The presence of opportunities for interacting with phenomena and collecting first hand data helped participants increase their emphasis on evidence-based explanations. (2) Participants viewed science talks as an essential mechanism for engaging students in the construction of evidence-based explanations and as being fundamental to meaning-making. (3) Participants demonstrated attention to scientific subject matter during instruction rather than merely focusing on activities and/or inquiry

  8. SANS-1 Experimental reports of 2000

    International Nuclear Information System (INIS)

    Willumeit, R.; Haramus, V.

    2001-01-01

    The instrument SANS-1 at the Geesthacht neutron facility GeNF was used for scattering experiments in 2000 at 196 of 200 days of reactor and cold source operation. The utilisation was shared between the in-house R and D program and user groups from different universities and research centers. These measurements were performed and analysed either by guest scientists or GKSS staff. The focus of the work in 2000 at the experiment SANS-1 was the structural investigation of hydrogen containing substances such as biological macromolecules (ribosomes, protein-RNA-complexes, protein solutions, glycolipids and membranes), molecules which are important in the fields of environmental research (refractoric organic substances) and technical chemistry (surfactants, micelles). (orig.) [de

  9. SANS studies of solutions and molecular composites prepared from cellulose tricarbanilate

    CERN Document Server

    Alava, C; Cameron, J D; Cowie, J M G; Vaqueiro, P; Möller, A; Triolo, A

    2002-01-01

    We report on SANS measurements carried out on the instrument SANS1 (V4) at the BENSC facility on solutions and composites of cellulose tricarbanilate (CTC). This cellulose derivative exhibits lyotropic behaviour in methylacrylate (MA). The SANS data indicate that in the isotropic liquid state (up to 25% wt CTC in MA) the CTC chains behave like rods of mass per unit length (M/L). In the liquid crystalline (LC) phase (at and above 35% wt CTC in MA), the Q dependence varies from Q sup - sup 1 to Q sup - sup 4 , probably as a result of self-assembling of the CTC chains. The general aim of our work is to prepare molecular composites, i.e. miscible blends of rigid-rod and flexible-coil polymers, from CTC solutions in polymerizable media. To establish the degree of homogeneity of the composites, we performed SANS measurements on UV-cured CTC/MA solutions. Here, we compare the SANS data of CTC/monomer solutions with those of the corresponding composites. (orig.)

  10. 78 FR 35593 - Special Local Regulation; Christmas Boat Parade, San Juan Harbor; San Juan, PR

    Science.gov (United States)

    2013-06-13

    ... individually or cumulatively have a significant effect on the human environment. This proposed rule involves.... Pearson, Captain, U.S. Coast Guard, Captain of the Port San Juan. [FR Doc. 2013-13994 Filed 6-12-13; 8:45...

  11. Vision in elementary mathematics

    CERN Document Server

    Sawyer, W W

    2003-01-01

    Sure-fire techniques of visualizing, dramatizing, and analyzing numbers promise to attract and retain students' attention and understanding. Topics include basic multiplication and division, algebra, word problems, graphs, negative numbers, fractions, many other practical applications of elementary mathematics. 1964 ed. Answers to Problems.

  12. Piaget and Elementary Science

    Science.gov (United States)

    Chittenden, Edward A.

    1970-01-01

    Describes the intellectual development stages ascribed to children by Jean Piaget. Characteristics and examples are given for sensori-motor, preoperational, concrete operational, and formal operational thinking periods. Implications are given for elementary school science education, including (1) formal instruction does not accelerate acquisition…

  13. 76 FR 6517 - San Luis & Rio Grande Railroad-Petition for a Declaratory Order

    Science.gov (United States)

    2011-02-04

    ... DEPARTMENT OF TRANSPORTATION Surface Transportation Board [Docket No. FD 35380] San Luis & Rio... petition filed by San Luis & Rio Grande Railroad (SLRG), the Board instituted a declaratory order... proposed operation of a truck-to-rail transload facility in Antonito, Colorado. See San Luis & Rio Grande R...

  14. New evidence on the state of stress of the san andreas fault system.

    Science.gov (United States)

    Zoback, M D; Zoback, M L; Mount, V S; Suppe, J; Eaton, J P; Healy, J H; Oppenheimer, D; Reasenberg, P; Jones, L; Raleigh, C B; Wong, I G; Scotti, O; Wentworth, C

    1987-11-20

    Contemporary in situ tectonic stress indicators along the San Andreas fault system in central California show northeast-directed horizontal compression that is nearly perpendicular to the strike of the fault. Such compression explains recent uplift of the Coast Ranges and the numerous active reverse faults and folds that trend nearly parallel to the San Andreas and that are otherwise unexplainable in terms of strike-slip deformation. Fault-normal crustal compression in central California is proposed to result from the extremely low shear strength of the San Andreas and the slightly convergent relative motion between the Pacific and North American plates. Preliminary in situ stress data from the Cajon Pass scientific drill hole (located 3.6 kilometers northeast of the San Andreas in southern California near San Bernardino, California) are also consistent with a weak fault, as they show no right-lateral shear stress at approximately 2-kilometer depth on planes parallel to the San Andreas fault.

  15. Elementary particles and cosmology

    International Nuclear Information System (INIS)

    Audouze, J.; Paty, M.

    2000-01-01

    The universe is the most efficient laboratory of particle physics and the understanding of cosmological processes implies the knowledge of how elementary particles interact. This article recalls the mutual influences between on the one hand: astrophysics and cosmology and on the other hand: nuclear physics and particle physics. The big-bang theory relies on nuclear physics to explain the successive stages of nucleo-synthesis and the study of solar neutrinos has led to discover new aspects of this particle: it is likely that neutrinos undergo oscillations from one neutrino type to another. In some universe events such as the bursting of a super-nova, particles are released with a kinetic energy that would be impossible to reach on earth with a particle accelerator. These events are become common points of interest between astrophysicists and particle physicists and have promoted a deeper cooperation between astrophysics and elementary particle physics. (A.C.)

  16. Do Elementary Science Methods Textbooks Promote Understanding of Shadows?

    Directory of Open Access Journals (Sweden)

    Lloyd H. Barrow

    2016-02-01

    Full Text Available Elementary science methods textbooks can be an important resource for future elementary teachers of science. Since shadows are a common topic in elementary school and Next Generation Science Standards (NGSS Lead States, 2013. A series of ten shadows concepts were formed into a learning progression by Wizman and Fortus (2007. For this research, ten science methods textbook were read and analyzed about how each of the shadow concepts were addressed. These methods textbooks focused on a limited number of shadow concepts. Consequently, as a future reference, they are very limited in addressing all ten shadow concepts.

  17. On the Origin of Elementary Particle Masses

    OpenAIRE

    Hansson, Johan

    2012-01-01

    The oldest enigma in fundamental particle physics is: Where do the observed masses of elementary particles come from? Inspired by observation of the empirical particle mass spectrum we propose that the masses of elementary parti cles arise solely due to the self-interaction of the fields associated with a particle. We thus assume that the mass is proportional to the strength of the interaction of th e field with itself. A simple application of this idea to the fermi...

  18. Dal "San Marco" al "Vega". (English Title: From "San Marco" to Vega)

    Science.gov (United States)

    Savi, E.

    2017-10-01

    Apart from the two superpowers, among the other countries Italy has had an important role in astronautics. The roots of Italian astronautics' history runs deep in the hottest years of the Cold War, and it had its first remarkable achievement in the San Marco project..after years of advanced technologies testing, they achieved European cooperation and built VEGA, the current Arianespace light launcher.

  19. Relocating San Miguel Volcanic Seismic Events for Receiver Functions and Tomographic Models

    Science.gov (United States)

    Patlan, E.; Velasco, A. A.; Konter, J.

    2009-12-01

    The San Miguel volcano lies near the city of San Miguel, El Salvador (13.43N and -88.26W). San Miguel volcano, an active stratovolcano, presents a significant natural hazard for the city of San Miguel. Furthermore, the internal state and activity of volcanoes remains an important component to understanding volcanic hazard. The main technology for addressing volcanic hazards and processes is through the analysis of data collected from the deployment of seismic sensors that record ground motion. Six UTEP seismic stations were deployed around San Miguel volcano from 2007-2008 to define the magma chamber and assess the seismic and volcanic hazard. We utilize these data to develop images of the earth structure beneath the volcano, studying the volcanic processes by identifying different sources, and investigating the role of earthquakes and faults in controlling the volcanic processes. We will calculate receiver functions to determine the thickness of San Miguel volcano internal structure, within the Caribbean plate. Crustal thicknesses will be modeled using calculated receiver functions from both theoretical and hand-picked P-wave arrivals. We will use this information derived from receiver functions, along with P-wave delay times, to map the location of the magma chamber.

  20. El círculo meridiano automático de San Fernando - San Juan. Sus primeros pasos en el hemisferio sur

    Science.gov (United States)

    Mallamaci, C. C.; Muiños, J. L.; Gallego, M.; Pérez, J. A.; Marmolejo, L.; Navarro, J. L.; Sedeño, J.; Vallejos, M.; Belizón, F.

    Se informa sobre el estado actual del Círculo Meridiano Automático de San Fernando-San Juan. El instrumento (Grubb-Parson, de 178mm de abertura y 2665 mm de distancia focal) es gemelo del que se encuentra en las Islas Canarias, y fue instalado durante los meses de julio y agosto de 1996 en la estación astronómica ``Dr. C.U.Cesco" (El Leoncito, Barreal), a unos 200 km de distancia de la ciudad de San Juan, merced a un Convenio de Cooperación Científica, firmado en 1994 entre el ROA (España) y el OAFA (Argentina). En la actualidad se está llevando a cabo un programa de prueba cuyos resultados preliminares muestran que el telescopio está en buenas condiciones para observar estrellas de hasta magnitud aproximada 14.5, con buenos errores de observación (<0.12" en ascensión recta y declinación).

  1. Perceptions of Elementary Teachers on the Instructional Leadership Role of School Principals

    Science.gov (United States)

    Yavuz, Mustafa; Bas, Gokhan

    2010-01-01

    In this research, elementary school principals' instructional leadership behavior was evaluated based on the perceptions of elementary school teachers. The research is believed to contribute to the development of instructional leadership behavior of elementary school principals for the development of school organization. A "semi-structured…

  2. California State Waters Map Series: offshore of San Gregorio, California

    Science.gov (United States)

    Cochrane, Guy R.; Dartnell, Peter; Greene, H. Gary; Watt, Janet T.; Golden, Nadine E.; Endris, Charles A.; Phillips, Eleyne L.; Hartwell, Stephen R.; Johnson, Samuel Y.; Kvitek, Rikk G.; Erdey, Mercedes D.; Bretz, Carrie K.; Manson, Michael W.; Sliter, Ray W.; Ross, Stephanie L.; Dieter, Bryan E.; Chin, John L.; Cochran, Susan A.; Cochrane, Guy R.; Cochran, Susan A.

    2014-01-01

    In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California's State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of swath sonar data, acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data. The map products display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow (to about 100 m) subsurface geology. The Offshore of San Gregorio map area is located in northern California, on the Pacific coast of the San Francisco Peninsula about 50 kilometers south of the Golden Gate. The map area lies offshore of the Santa Cruz Mountains, part of the northwest-trending Coast Ranges that run roughly parallel to the San Andreas Fault Zone. The Santa Cruz Mountains lie between the San Andreas Fault Zone and the San Gregorio Fault system. The nearest significant onshore cultural centers in the map area are San Gregorio and Pescadero, both unincorporated communities with populations well under 1,000. Both communities are situated inland of state beaches that share their names. No harbor facilities are within the Offshore of San Gregorio map area. The hilly coastal area is virtually undeveloped grazing land for sheep and cattle. The coastal geomorphology is controlled by late Pleistocene and Holocene slip in the San Gregorio Fault system. A westward bend in the San Andreas Fault Zone, southeast of the map area, coupled with right-lateral movement along the San Gregorio Fault system have caused regional folding and uplift. The coastal area consists of high coastal bluffs and vertical sea cliffs. Coastal promontories in

  3. Characterization of alumina using small angle neutron scattering (SANS)

    International Nuclear Information System (INIS)

    Megat Harun Al Rashidn Megat Ahmad; Abdul Aziz Mohamed; Azmi Ibrahim; Che Seman Mahmood; Edy Giri Rachman Putra; Muhammad Rawi Muhammad Zin; Razali Kassim; Rafhayudi Jamro

    2007-01-01

    Alumina powder was synthesized from an aluminium precursor and studied using small angle neutron scattering (SANS) technique and complemented with transmission electron microscope (TEM). XRD measurement confirmed that the alumina produced was high purity and highly crystalline αphase. SANS examination indicates the formation of mass fractals microstructures with fractal dimension of about 2.8 on the alumina powder. (Author)

  4. Species - San Diego Co. [ds121

    Data.gov (United States)

    California Natural Resource Agency — This is the Biological Observation Database point layer representing baseline observations of sensitive species (as defined by the MSCP) throughout San Diego County....

  5. Lipid based drug delivery systems: Kinetics by SANS

    Science.gov (United States)

    Uhríková, D.; Teixeira, J.; Hubčík, L.; Búcsi, A.; Kondela, T.; Murugova, T.; Ivankov, O. I.

    2017-05-01

    N,N-dimethyldodecylamine-N-oxide (C12NO) is a surfactant that may exist either in a neutral or protonated form depending on the pH of aqueous solutions. Using small angle X-ray diffraction (SAXD) we demonstrate structural responsivity of C12NO/dioleoylphospha-tidylethanolamine (DOPE)/DNA complexes designed as pH sensitive gene delivery vectors. Small angle neutron scattering (SANS) was employed to follow kinetics of C12NO protonization and DNA binding into C12NO/DOPE/DNA complexes in solution of 150 mM NaCl at acidic condition. SANS data analyzed using paracrystal lamellar model show the formation of complexes with stacking up to ∼32 bilayers, spacing ∼ 62 Å, and lipid bilayer thickness ∼37 Å in 3 minutes after changing pH from 7 to 4. Subsequent structural reorganization of the complexes was observed along 90 minutes of SANS mesurements.

  6. Lipid based drug delivery systems: Kinetics by SANS

    International Nuclear Information System (INIS)

    Uhríková, D; Hubčík, L; Búcsi, A; Kondela, T; Teixeira, J; Murugova, T; Ivankov, O I

    2017-01-01

    N,N-dimethyldodecylamine-N-oxide (C 12 NO) is a surfactant that may exist either in a neutral or protonated form depending on the pH of aqueous solutions. Using small angle X-ray diffraction (SAXD) we demonstrate structural responsivity of C 12 NO/dioleoylphospha-tidylethanolamine (DOPE)/DNA complexes designed as pH sensitive gene delivery vectors. Small angle neutron scattering (SANS) was employed to follow kinetics of C 12 NO protonization and DNA binding into C 12 NO/DOPE/DNA complexes in solution of 150 mM NaCl at acidic condition. SANS data analyzed using paracrystal lamellar model show the formation of complexes with stacking up to ∼32 bilayers, spacing ∼ 62 Å, and lipid bilayer thickness ∼37 Å in 3 minutes after changing pH from 7 to 4. Subsequent structural reorganization of the complexes was observed along 90 minutes of SANS mesurements. (paper)

  7. Geologic Map of the San Luis Quadrangle, Costilla County, Colorado

    Science.gov (United States)

    Machette, Michael N.; Thompson, Ren A.; Drenth, Benjamin J.

    2008-01-01

    The map area includes San Luis and the primarily rural surrounding area. San Luis, the county seat of Costilla County, is the oldest surviving settlement in Colorado (1851). West of the town are San Pedro and San Luis mesas (basalt-covered tablelands), which are horsts with the San Luis fault zone to the east and the southern Sangre de Cristo fault zone to the west. The map also includes the Sanchez graben (part of the larger Culebra graben), a deep structural basin that lies between the San Luis fault zone (on the west) and the central Sangre de Cristo fault zone (on the east). The oldest rocks exposed in the map area are the Pliocene to upper Oligocene basin-fill sediments of the Santa Fe Group, and Pliocene Servilleta Basalt, a regional series of 3.7?4.8 Ma old flood basalts. Landslide deposits and colluvium that rest on sediments of the Santa Fe Group cover the steep margins of the mesas. Rare exposures of the sediment are comprised of siltstones, sandstones, and minor fluvial conglomerates. Most of the low ground surrounding the mesas and in the graben is covered by surficial deposits of Quaternary age. The alluvial deposits are subdivided into three Pleistocene-age units and three Holocene-age units. The oldest Pleistocene gravel (unit Qao) forms extensive coalesced alluvial fan and piedmont surfaces, the largest of which is known as the Costilla Plain. This surface extends west from San Pedro Mesa to the Rio Grande. The primary geologic hazards in the map area are from earthquakes, landslides, and localized flooding. There are three major fault zones in the area (as discussed above), and they all show evidence for late Pleistocene to possible Holocene movement. The landslides may have seismogenic origins; that is, they may be stimulated by strong ground shaking during large earthquakes. Machette and Thompson based this geologic map entirely on new mapping, whereas Drenth supplied geophysical data and interpretations.

  8. Education for Autonomy: The Role of Religious Elementary Schools

    Science.gov (United States)

    Macmullen, Ian

    2004-01-01

    I argue that religious elementary schools whose pedagogical methods satisfy the principle of rational authority have distinctive advantages over secular elementary schools for the purpose of laying the foundations for ethical autonomy in the children of religious parents. Insights from developmental psychology bolster the argument from conceptual…

  9. 33 CFR 165.758 - Security Zone; San Juan, Puerto Rico.

    Science.gov (United States)

    2010-07-01

    ... Security Zone; San Juan, Puerto Rico. (a) Location. Moving and fixed security zones are established 50... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zone; San Juan, Puerto Rico. 165.758 Section 165.758 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND...

  10. Resistance Management for San Jose Scale (Hemiptera: Diaspididae).

    Science.gov (United States)

    Buzzetti, K; Chorbadjian, R A; Nauen, R

    2015-12-01

    The San Jose scale Diaspidiotus perniciosus Comstock is one of the most important pests of deciduous fruit trees. The major cause of recent outbreaks in apple orchards is thought to be the development of insecticide resistance, specifically organophosphates. The first report was given in North America, and now, in Chile. In the present study, San Jose scale populations collected from two central regions of Chile were checked for their susceptibility to different mode of action insecticides in order to establish alternatives to manage this pest. No evidence of cross resistance between organophosphates insecticides and acetamiprid, buprofezin, pyriproxyfen, spirotetramat, sulfoxaflor, or thiacloprid was found. Baselines of LC50-LC95 for different life stages of San Jose scale are given, as reference to future studies of resistance monitoring. The systemic activity of acetamiprid, spirotetramat, and thiacloprid was higher than the contact residue effect of these compounds. For sulfoxaflor, both values were similar. Program treatments including one or more of these compounds are compared in efficacy and impact on resistance ratio values. In order to preserve new insecticides as an important tool to control San Jose scale, resistance management programs should be implemented, considering insecticide mode of action classes alternated or mixed. © The Authors 2015. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  11. Observations on English education in elementary schools

    OpenAIRE

    カドゥアー, ドナルド; 藤澤, 良行; カドゥアー, ドナルド; フジサワ, ヨシユキ; Donald, KADUHR; Yoshiyuki, FUJISAWA

    2009-01-01

    This paper examines English-language teaching in the People's Republic of China through visitations to some elementary school grades in two large urban centres, Beijing and Dalian, in March 2008. Observations of English classes in China for students in grades 1 to 6, provide the basis of what we feel needs to be addressed for the implementation of English-language teaching in lower levels of Japanese elementary schools (grade 5 and above) from 2011. After giving a brief overview of the develo...

  12. Describing Pre-Service Teachers' Developing Understanding of Elementary Number Theory Topics

    Science.gov (United States)

    Feldman, Ziv

    2012-01-01

    Although elementary number theory topics are closely linked to foundational topics in number and operations and are prevalent in elementary and middle grades mathematics curricula, little is currently known about how students and teachers make sense of them. This study investigated pre-service elementary teachers' developing understanding of…

  13. A new record for American Bullfrog (Lithobates catesbeianus in San Juan, Argentina Nuevo registro de rana toro americana (Lithobates catesbeianus en San Juan, Argentina

    Directory of Open Access Journals (Sweden)

    Eduardo Sanabria

    2011-03-01

    Full Text Available We report a new record of Lithobates catesbeianus (American bullfrog from Argentina. L. catesbeianus was first introduced to San Juan Province 11 years ago in Calingasta Department, where the habitat is pre-cordilleran. The new record is for Zonda Department, San Juan Province, in the Monte desert region. Here, L. catesbeianus uses artificial ponds for reproduction and tadpole development. These ponds receive water from an irrigation system that connects the whole agriculture land in the region. The tadpoles use the irrigation canals to move among ponds. We suggest that legislation should be established to prevent future invasions and to achieve sustainable management of the wild American bullfrog populations in San Juan. Prevention of future invasion and management of established populations of this species requires the cooperation of numerous stake holders.Se presenta un nuevo registro de Lithobates catesbeianus (rana toro americana en Argentina. L. catesbeianus fue introducida por primera vez a la provincia de San Juan hace 11 años en el Departamento Calingasta, donde el hábitat es pre-cordillerano. El nuevo registro es para el Departamento Zonda en la provincia de San Juan, en el desierto del Monte. En este sitio, L. catesbeianus usa estanques artificiales para la reproducción y desarrollo del renacuajo. Los estanques reciben agua de un sistema de riego que conecta todas las tierras de la agricultura en la región. Los renacuajos utilizan los canales de riego para moverse entre los estanques. Sugerimos que se establezcan leyes para prevenir invasiones futuras y para lograr un manejo integrado de las poblaciones silvestres de rana toro que se encuentran en San Juan. La prevención de futuras invasiones y el manejo de las poblaciones establecidas de esta especie requieren la cooperación de numerosas entidades tanto gubernamentales como privadas.

  14. ABC Problem in Elementary Mathematics Education: Arithmetic "before" Comprehension

    Science.gov (United States)

    Boote, Stacy K.; Boote, David N.

    2018-01-01

    Mathematical habits of prospective teachers affect problem comprehension and success and expose their beliefs about mathematics. Prospective elementary teachers (PSTs) (n = 121) engaged in a problem solving activity each week in class. Data were collected from PSTs enrolled in an undergraduate elementary mathematics methods course at a…

  15. Cypriot Urban Elementary Students' Attitude toward Physical Education

    Science.gov (United States)

    Constantinides, Panos; Silverman, Stephen

    2018-01-01

    Purpose: This study examined the attitudes of Cypriot elementary school students toward physical education. Fourth, fifth and sixth grade students (N = 763) from six urban Cypriot elementary schools completed an attitude instrument. Methods: Adapting the attitude instrument for Greek-speaking students an extensive two-step pilot study showed the…

  16. Structure of the 1906 near-surface rupture zone of the San Andreas Fault, San Francisco Peninsula segment, near Woodside, California

    Science.gov (United States)

    Rosa, C.M.; Catchings, R.D.; Rymer, M.J.; Grove, Karen; Goldman, M.R.

    2016-07-08

    High-resolution seismic-reflection and refraction images of the 1906 surface rupture zone of the San Andreas Fault near Woodside, California reveal evidence for one or more additional near-surface (within about 3 meters [m] depth) fault strands within about 25 m of the 1906 surface rupture. The 1906 surface rupture above the groundwater table (vadose zone) has been observed in paleoseismic trenches that coincide with our seismic profile and is seismically characterized by a discrete zone of low P-wave velocities (Vp), low S-wave velocities (Vs), high Vp/Vs ratios, and high Poisson’s ratios. A second near-surface fault strand, located about 17 m to the southwest of the 1906 surface rupture, is inferred by similar seismic anomalies. Between these two near-surface fault strands and below 5 m depth, we observed a near-vertical fault strand characterized by a zone of high Vp, low Vs, high Vp/Vs ratios, and high Poisson’s ratios on refraction tomography images and near-vertical diffractions on seismic-reflection images. This prominent subsurface zone of seismic anomalies is laterally offset from the 1906 surface rupture by about 8 m and likely represents the active main (long-term) strand of the San Andreas Fault at 5 to 10 m depth. Geometries of the near-surface and subsurface (about 5 to 10 m depth) fault zone suggest that the 1906 surface rupture dips southwestward to join the main strand of the San Andreas Fault at about 5 to 10 m below the surface. The 1906 surface rupture forms a prominent groundwater barrier in the upper 3 to 5 m, but our interpreted secondary near-surface fault strand to the southwest forms a weaker barrier, suggesting that there has been less or less-recent near-surface slip on that strand. At about 6 m depth, the main strand of the San Andreas Fault consists of water-saturated blue clay (collected from a hand-augered borehole), which is similar to deeply weathered serpentinite observed within the main strand of the San Andreas Fault at

  17. New fault picture points toward San Francisco Bay area earthquakes

    Science.gov (United States)

    Kerr, R. A.

    1989-01-01

    Recent earthquakes and a new way of looking at faults suggest that damaging earthquakes are closing in on the San Francisco area. Earthquakes Awareness Week 1989 in northern California started off with a bang on Monday, 3 April, when a magnitude 4.8 earthquake struck 15 kilometers northeast of San Jose. The relatively small shock-its primary damage was the shattering of an air-control tower window-got the immediate attention of three U.S Geological Survey seismologists in Menlo Park near San Francisco. David Oppenheimer, William Bakun, and Allan Lindh had forecast a nearby earthquake in a just completed report, and this, they thought, might be it. 

  18. The San values of conflict prevention and avoidance in Platfontein

    Directory of Open Access Journals (Sweden)

    Nina Mollema

    2017-09-01

    Full Text Available The aim of this article is to identify measures that can prevent violent conflict through the maintenance of traditional cultural values that guide conflict avoidance. Moreover, the article focuses on the concepts of conflict prevention and conflict avoidance as applied by the San community of Platfontein. The causes of the inter-communal tensions between the San community members are also examined. A selected conflict situation, that of superstition and witchcraft, is assessed as factors increasing interpersonal conflict in the Platfontein community. This investigation is made to determine if the San preventive measures have an impact in the community, so as to prevent ongoing conflicts from escalating further.

  19. El castillo de San Romualdo (San Fernando, Cádiz. Aproximación estratigráfica y evolución constructiva

    Directory of Open Access Journals (Sweden)

    Utrera Burgal, Raquel M.

    2009-12-01

    Full Text Available This article shows the results of the archaeological research carried out in the castle of San Romualdo, the most emblematic building of the city of San Fernando and a defensive fortress tied to the control access of Cádiz. The standing building recording has enabled to know the building evolution from its origins until the present. Studies have hitherto confirmed the chronological conclusions already proposed in 2003. That is, the current castle is a medieval Christian building erected in the second half of the 13th century thanks to Mudejar workers and materials reused from a previous building.Presentamos en este artículo los resultados de nuestra investigación arqueológica en el castillo de San Romualdo, el edificio más emblemático de la ciudad de San Fernando y fortaleza defensiva ligada al control del acceso a Cádiz. El análisis estratigráfico de alzados ha permitido conocer la evolución constructiva del edificio, desde sus orígenes hasta la actualidad. Hasta ahora los estudios confirman las conclusiones en cuanto a su datación presentadas en el año 2003, es decir, el castillo, tal y como hoy lo conocemos, es una construcción medieval cristiana, realizada durante la segunda mitad del siglo XIII, con mano de obra mudéjar y con materiales reutilizados de una edificación anterior.

  20. Dynamic model of elementary particles and the nature of mass and “electric” charge

    OpenAIRE

    Kreidik, Leonid G.; Institute of Mathematics & Physics, UTA; Shpenkov, George P.; Institute of Mathematics & Physics, UTA

    2009-01-01

    The physical model of elementary particles, based on the wave features of their behavior, is described here. Elementary particles are regarded as elementary dynamical structures of the microworld, interrelated with all levels of the Universe, i.e., inseparable from the structure of the Universe as a whole. Between any elementary particles and the ambient field of matter-space-time, as well as between elementary particles themselves, there exists an interchange of matter-space-time occurring b...

  1. The San Diego Panasonic Partnership: A Case Study in Restructuring.

    Science.gov (United States)

    Holzman, Michael; Tewel, Kenneth J.

    1992-01-01

    The Panasonic Foundation provides resources for restructuring school districts. The article examines its partnership with the San Diego City School District, highlighting four schools that demonstrate promising practices and guiding principles. It describes recent partnership work on systemic issues, noting the next steps to be taken in San Diego.…

  2. "Elementary, My Dear Shakespeare." Producing a Shakespearean Festival in the Elementary Schools.

    Science.gov (United States)

    Engen, Barbara; Campbell, Joy

    Intended to give teachers usable information and prepared materials that are ready-to-reproduce for students, this book compiles research, tips, and teaching ideas into a sourcebook on teaching and producing William Shakespeare's plays in the elementary classroom. It is designed to bring the student into an awareness of Shakespeare's art and…

  3. Cultural Astronomy in Elementary and Secondary School

    Science.gov (United States)

    Jafelice, Luiz Carlos

    2015-07-01

    This work is addressed to educators and geography, science, biology and physics teachers who deal with elementary, middle and high school education. It discusses the importance of adopting the anthropological perspective regarding issues that are considered within the astronomy area. It also presents practical proposals for those who intend to introduce cultural astronomy in elementary, middle and high school education - from the beginning of the 1st grade in Elementary school to the end of the 3rd grade in Secondary school, in formal as well as in informal education. This work is proposed within the context of the holistic and transdisciplinary environmental education. Our approach values above all the experience and aims at a humanistic education that includes epistemological and cultural diversities. The suggested practical proposals can be also beneficially used to address works that include contents related to Brazilian indigenous and Afro-descent cultures in the school curriculum, as the new law requires. The guidelines presented here were tested in real school situations.

  4. Elementary particle physics in early physics education

    CERN Document Server

    Wiener, Gerfried

    2017-01-01

    Current physics education research is faced with the important question of how best to introduce elementary particle physics in the classroom early on. Therefore, a learning unit on the subatomic structure of matter was developed, which aims to introduce 12-year-olds to elementary particles and fundamental interactions. This unit was iteratively evaluated and developed by means of a design-based research project with grade-6 students. In addition, dedicated professional development programmes were set up to instruct high school teachers about the learning unit and enable them to investigate its didactical feasibility. Overall, the doctoral research project led to successful results and showed the topic of elementary particle physics to be a viable candidate for introducing modern physics in the classroom. Furthermore, thanks to the design-based research methodology, the respective findings have implications for both physics education and physics education research, which will be presented during the PhD defen...

  5. Upper Elementary Teachers' Self-Efficacy and Spelling Instruction: A Qualitative Study

    Science.gov (United States)

    Fernandes, Brian E.

    2017-01-01

    A great deal of research has been conducted regarding spelling instruction at the early childhood and lower elementary levels, but not at the upper elementary level. This qualitative study explored the perceptions and experiences of upper elementary teachers to gain a better understanding of how they instruct spelling and their related…

  6. A Study of Health Education and Its Needs for Elementary School Students

    Science.gov (United States)

    Hussain, Irshad; Alamgir, Muhammad Ahmad; Shahzad, Muhammad

    2015-01-01

    Health Education, particularly in elementary schools, appears to be a neglected area in Pakistan. This study investigated the health education needs of elementary school students. The purpose of the present study is to assess health education needs of elementary school students. The study adopted mix approach of (qualitative and quantitative)…

  7. Characterizing the Organic Matter in Surface Sediments from the San Juan Bay Estuary,

    Science.gov (United States)

    The San Juan Bay Estuary (SJBE) is located on the north coast of Puerto Rico and includes the San Juan Bay, San José Lagoon, La Torrecilla Lagoon and Piñones Lagoon, as well as the Martín Peña and the Suárez Canals. The SJBE watershed has the highest...

  8. Incorporating Remote Robotic Telescopes into an Elementary Classroom Setting

    Science.gov (United States)

    Sharp, Zoe; Hock, Emily

    2016-03-01

    As Next Generation Science Standards (NGSS) are implemented across the nation, engaging and content-specific lessons are becoming an important addition to elementary classrooms. This paper demonstrate how effective hands-on teaching tactics, authentic learning, scientifically significant data, and research in the elementary realm can aid students in selfdiscovery about astronomy and uncover what it is to be a researcher and scientist. It also outlines an effective, engaging, and integrated classroom unit that is usable in both the scientific community and elementary schools. The lesson unit consists of NGSS science and engineering practices and performance expectations as well as California Common Core Standards (CCSS).

  9. Cuartel San Carlos. Yacimiento veterano

    Directory of Open Access Journals (Sweden)

    Mariana Flores

    2007-01-01

    Full Text Available El Cuartel San Carlos es un monumento histórico nacional (1986 de finales del siglo XVIII (1785-1790, caracterizado por sufrir diversas adversidades en su construcción y soportar los terremotos de 1812 y 1900. En el año 2006, el organismo encargado de su custodia, el Instituto de Patrimonio Cultural del Ministerio de Cultura, ejecutó tres etapas de exploración arqueológica, que abarcaron las áreas Traspatio, Patio Central y las Naves Este y Oeste de la edificación. Este trabajo reseña el análisis de la documentación arqueológica obtenida en el sitio, a partir de la realización de dicho proyecto, denominado EACUSAC (Estudio Arqueológico del Cuartel San Carlos, que representa además, la tercera campaña realizada en el sitio. La importancia de este yacimiento histórico, radica en su participación en los acontecimientos que propiciaron conflictos de poder durante el surgimiento de la República y en los sucesos políticos del siglo XX. De igual manera, se encontró en el sitio una amplia muestra de materiales arqueológicos que reseñan un estilo de vida cotidiana militar, así como las dinámicas sociales internas ocurridas en el San Carlos, como lugar estratégico para la defensa de los diferentes regímenes que atravesó el país, desde la época del imperialismo español hasta nuestros días.

  10. San Francisco urban partnership agreement, national evaluation : exogenous factors test plan.

    Science.gov (United States)

    2011-06-01

    This report presents the test plan for collecting and analyzing exogenous factors data for the San Francisco Urban : Partnership Agreement (UPA) under the United States Department of Transportation (U.S. DOT) UPA Program. : The San Francisco UPA proj...

  11. Elementary particle physics at the University of Florida. Annual progress report

    Energy Technology Data Exchange (ETDEWEB)

    1991-12-01

    This report discusses research in the following areas: theoretical elementary particle physics; experimental elementary particle physics; axion project; SSC detector development; and computer acquisition. (LSP).

  12. Investigation of preservice elementary teachers' thinking about science

    Science.gov (United States)

    Cobern, William W.; Loving, Cathleen C.

    2002-12-01

    It is not uncommon to find media reports on the failures of science education, nor uncommon to hear prestigious scientists publicly lament the rise of antiscience attitudes. Given the position elementary teachers have in influencing children, antiscience sentiment among them would be a significant concern. Hence, this article reports on an investigation in which preservice elementary teachers responded to the Thinking about Science survey instrument. This newly developed instrument addresses the broadrelationship of science to nine important areas of society and culture and is intended to reveal the extent of views being consistent with or disagreeing with a commonly held worldview of science portrayed in the media and in popular science and science education literature. Results indicate that elementary teachers discriminate with respect to different aspects of culture and science but they are not antiscience.

  13. Elementary analysis

    CERN Document Server

    Snell, K S; Langford, W J; Maxwell, E A

    1966-01-01

    Elementary Analysis, Volume 2 introduces several of the ideas of modern mathematics in a casual manner and provides the practical experience in algebraic and analytic operations that lays a sound foundation of basic skills. This book focuses on the nature of number, algebraic and logical structure, groups, rings, fields, vector spaces, matrices, sequences, limits, functions and inverse functions, complex numbers, and probability. The logical structure of analysis given through the treatment of differentiation and integration, with applications to the trigonometric and logarithmic functions, is

  14. [Comparison of the prognostic value of mortality Child Pugh Score and forecasting models of chronic liver disease in patients with decompensated cirrhosis of the Hospital Nacional Cayetano Heredia, Lima-Peru].

    Science.gov (United States)

    Valenzuela Granados, Vanessa; Salazar-Quiñones, Maria; Cheng-Zárate, Lester; Malpica-Castillo, Alexander; Huerta Mercado, Jorge; Ticse, Ray

    2015-01-01

    The assessment of prognosis is an essential part of the evaluation of all patients with liver cirrhosis. Currently continues to develop new models to optimize forecast accuracy mortality score is calculated by the Child-Turcotte-Pugh (CTP) and the model for end-stage liver disease (MELD). Compare the prognostic accuracy of hospital mortality and short-term mortality CTP, MELD and other models in patients with decompensated liver cirrhosis. Prospective descriptive study, comparison type of diagnostic test that included 84 patients. The score CTP, MELD and other models were calculated on the first day of hospitalization. The prognostic accuracy of mortality was assessed by the area under the ROC curve (AUROCs) of score CTP, MELD and other models. Hospital mortality and mortality in the short-term monitoring was 20 (23.8%) and 44 (52.4%), respectively. The AUROCs CTP, MELD, MELD Na, MESO, iMELD, RefitMELD and RefitMELD Na to predict hospital mortality was 0.4488, 0.5645, 0.5426, 0.5578, 0.5719, 0.5598 and 0.5754; and to predict short-term mortality was 0.5386, 0.5747, 0.5770, 0.5781, 0.5631, 0.5881 and 0.5693, respectively. By comparing each AUROCs of the CTP score, MELD and other models proved to be no better than the other (p>0.05). This study has not shown the predictive utility of the CTP score, MELD and other models (MELD Na, MESO, iMELD, Refit Refit MELD and MELD Na) to evaluate hospital mortality or short-term mortality in a sample of patients with decompensated cirrhosis of the Hospital Cayetano Heredia.

  15. Data Files for Ground-Motion Simulations of the 1906 San Francisco Earthquake and Scenario Earthquakes on the Northern San Andreas Fault

    Science.gov (United States)

    Aagaard, Brad T.; Barall, Michael; Brocher, Thomas M.; Dolenc, David; Dreger, Douglas; Graves, Robert W.; Harmsen, Stephen; Hartzell, Stephen; Larsen, Shawn; McCandless, Kathleen; Nilsson, Stefan; Petersson, N. Anders; Rodgers, Arthur; Sjogreen, Bjorn; Zoback, Mary Lou

    2009-01-01

    This data set contains results from ground-motion simulations of the 1906 San Francisco earthquake, seven hypothetical earthquakes on the northern San Andreas Fault, and the 1989 Loma Prieta earthquake. The bulk of the data consists of synthetic velocity time-histories. Peak ground velocity on a 1/60th degree grid and geodetic displacements from the simulations are also included. Details of the ground-motion simulations and analysis of the results are discussed in Aagaard and others (2008a,b).

  16. Content knowledge of prospective elementary school teacher for fractional concepts

    Science.gov (United States)

    Pattimukay, N.; Juniati, D.; Budiarto, M. T.

    2018-03-01

    The aim of this study was to describe the content knowledge especially the concept of fraction of prospective elementary school teacher. The purpose of this study is to describe the content knowledge, especially the concept of fraction of prospective elementary school teacher. The subject of the study was one of prospective elementary school teacher of Pattimura University. This research is qualitative research. Data were collected through the provision of tests to explore the knowledge content of primary school teacher candidates about fractional concepts. Then continued with qualitative data analysis. The results of this study are as follows: that the prospective primary school teacher defines fractions as part of the whole if an object is divided into equal parts, so that the part that has been divided is part of the whole. Furthermore, the prospective elementary school teacher understood the fractions as division shown in two ways, namely the prospective elementary school teacher understood the fraction as a division operation, the primary school teacher candidate interpreted the fraction as a division when an object is divided be part of the same. Meanwhile, the fraction as a ratio is interpreted as the relationship between a pair of numbers. Then, the denominations are interpreted as a ratio between the numerator and the denominator of the same value. The prospective elementary school teacher also understands fractions of value when simplifying fractions. Primary school teacher candidates understand the concept of fractional operations.

  17. Elementary particles and physics interaction unification

    International Nuclear Information System (INIS)

    Leite-Lopes, J.

    1985-01-01

    Quantum theory and relativity theory are fundamental of relativistic quantum mechanics, quantum field theory, which is the base of elementary particle physics, gauge field theory and basic force unification models. After a short introduction of relativistic equations of the main fields, the free scalar field, the free vector field, the free electromagnetic field and the free spinor field, and of elementary particles and basic interactions, gauge invariance and electromagnetic gauge field are detailed. Then the presentation of internal degrees of freedom, especially isospin, introduces gauge field theory of Yang-Mills. At last weak interactions and strong interactions are presented and lead to grand unification theory in conclusion [fr

  18. Elementary Science Resource Guide.

    Science.gov (United States)

    Texas Education Agency, Austin. Div. of Curriculum Development.

    This guide for elementary teachers provides information on getting ideas into action, designing and implementing the right situation, ways in which to evaluate science process activities with students, and seven sample units. The units cover using the senses, magnets, forces, weather forecasting, classification of living things, and the physical…

  19. DEPARTMENTALIZATION IN ELEMENTARY SCHOOLS.

    Science.gov (United States)

    American Association of School Administrators, Washington, DC.

    THE RESULTS OF A SURVEY CONCERNED WITH DEPARTMENTALIZATION IN ELEMENTARY SCHOOLS ARE REPORTED IN STATISTICAL TABLES WHICH ARE ACCOMPANIED BY DESCRIPTIVE COMMENTARY. FOR THE PURPOSE OF THE SURVEY, THE DEFINITION OF DEPARTMENTALIZATION IS RESTRICTED TO INCLUDE ONLY THOSE SITUATIONS IN WHICH STUDENTS RECEIVE INSTRUCTION IN THE VARIOUS ACADEMIC…

  20. Elementary principles of linear accelerators

    International Nuclear Information System (INIS)

    Loew, G.A.; Talman, R.

    1983-09-01

    These lectures come in five sections. The first is this introduction. The second is a short chronology of what are viewed as important milestones in the field. The third covers proton linacs. It introduces elementary concepts such as transit time, shunt impedance, and Q. Critical issues such as phase stability and transverse forces are discussed. The fourth section contains an elementary discussion of waveguide accelerating structures. It can be regarded as an introduction to some of the more advanced treatments of the subject. The final section is devoted to electron accelerators. Taking SLAC as an example, various topics are discussed such as structure design, choice of parameters, frequency optimization, beam current, emittance, bunch length and beam loading. Recent developments and future challenges are mentioned briefly. 41 figures, 4 tables

  1. Finding the Hook: Computer Science Education in Elementary Contexts

    Science.gov (United States)

    Ozturk, Zehra; Dooley, Caitlin McMunn; Welch, Meghan

    2018-01-01

    The purpose of this study was to investigate how elementary teachers with little knowledge of computer science (CS) and project-based learning (PBL) experienced integrating CS through PBL as a part of a standards-based elementary curriculum in Grades 3-5. The researchers used qualitative constant comparison methods on field notes and reflections…

  2. Elementary function calculation programs for the central processor-6

    International Nuclear Information System (INIS)

    Dobrolyubov, L.V.; Ovcharenko, G.A.; Potapova, V.A.

    1976-01-01

    Subprograms of elementary functions calculations are given for the central processor (CP AS-6). A procedure is described to obtain calculated formulae which represent the elementary functions as a polynomial. Standard programs for random numbers are considered. All the programs described are based upon the algorithms of respective programs for BESM computer

  3. A Research on the Impact of Internet Use in American Elementary School Libraries

    OpenAIRE

    Feng-Hsiung Hou

    2003-01-01

    The purpose of this research was to explore the impact of Internet use in American elementary school libraries operations and to find the best way for use Internet tools in elementary school libraries operations. This study may offer important information about the impact of Internet usage for elementary school library s operations. The research question was: Is the Internet usage having significant impact for organizational operations in the American elementary school libraries? This study e...

  4. San Francisco Bay Water Quality Improvement Fund Map Service, San Francisco CA, 2012, US EPA Region 9

    Data.gov (United States)

    U.S. Environmental Protection Agency — The San Francisco Bay Water Quality Improvement Fund is a competitive grant program that is helping implement TMDLs to improve water quality, protect wetlands, and...

  5. San Francisco Bay Water Quality Improvement Fund Project Locations, San Francisco CA, 2017, US EPA Region 9

    Data.gov (United States)

    U.S. Environmental Protection Agency — The San Francisco Bay Water Quality Improvement Fund is a competitive grant program that is helping implement TMDLs to improve water quality, protect wetlands, and...

  6. Elementary amplitudes from full QCD and the stochastic vacuum model

    International Nuclear Information System (INIS)

    Martini, A.F.; Menon, M.J.

    2002-01-01

    In a previous work, making use of the gluon gauge-invariant two-point correlation function determined from lattice QCD in the quenched approximation and the stochastic vacuum model, we determined the elementary (parton-parton) scattering amplitude in the momentum transfer space. In this communication we compute the elementary amplitude from new lattice QCD calculations that include the effects of dynamical fermions (full QCD). The main conclusion is that the inclusion of dynamical fermions leads to a normalized elementary amplitude that decreases more quickly with the momentum transfer than that in the quenched approximation. (author)

  7. Total dose effects on elementary transistors of a comparator in bipolar technology

    International Nuclear Information System (INIS)

    Sarrabayrouse, G.; Guerre, F.X.

    1995-01-01

    In the present work we investigate elementary transistors behaviour of an Integrated Circuit using junction isolation bipolar technology. Polarization conditions and dose rate effects on the main elementary transistor types are analysed. Furthermore, the IC electronic function degradations are studied. Finally, a comparison between the function degradations and the elementary component ones is attempted. (author)

  8. An overview of San Francisco Bay PORTS

    Science.gov (United States)

    Cheng, Ralph T.; McKinnie, David; English, Chad; Smith, Richard E.

    1998-01-01

    The Physical Oceanographic Real-Time System (PORTS) provides observations of tides, tidal currents, and meteorological conditions in real-time. The San Francisco Bay PORTS (SFPORTS) is a decision support system to facilitate safe and efficient maritime commerce. In addition to real-time observations, SFPORTS includes a nowcast numerical model forming a San Francisco Bay marine nowcast system. SFPORTS data and nowcast numerical model results are made available to users through the World Wide Web (WWW). A brief overview of SFPORTS is presented, from the data flow originated at instrument sensors to final results delivered to end users on the WWW. A user-friendly interface for SFPORTS has been designed and implemented. Appropriate field data analysis, nowcast procedures, design and generation of graphics for WWW display of field data and nowcast results are presented and discussed. Furthermore, SFPORTS is designed to support hazardous materials spill prevention and response, and to serve as resources to scientists studying the health of San Francisco Bay ecosystem. The success (or failure) of the SFPORTS to serve the intended user community is determined by the effectiveness of the user interface.

  9. On Adiabatic Processes at the Elementary Particle Level

    OpenAIRE

    A, Michaud

    2016-01-01

    Analysis of adiabatic processes at the elementary particle level and of the manner in which they correlate with the principle of conservation of energy, the principle of least action and entropy. Analysis of the initial and irreversible adiabatic acceleration sequence of newly created elementary particles and its relation to these principles. Exploration of the consequences if this first initial acceleration sequence is not subject to the principle of conservation.

  10. Evaluating the quality of life of people with profound and multiple disabilities: Use of the San Martín Scale at the Obra San Martín Foundation

    Directory of Open Access Journals (Sweden)

    Irene Hierro Zorrilla

    2015-06-01

    Full Text Available The San Martín Scale is an instrument used to measure the quality of life of people with significant disabilities with adequate levels reliability and validity. In 2012, the San Martín Scale was administered to 85 adults with intellectual disabilities who were provided supports at Obra San Martin Foundation (Santander. In this article, we describe the results obtained at the mesosystem level, an example at the microsystem level, and future areas of work identified from the results.

  11. AMS San Diego Testbed - Calibration Data

    Data.gov (United States)

    Department of Transportation — The data in this repository were collected from the San Diego, California testbed, namely, I-15 from the interchange with SR-78 in the north to the interchange with...

  12. Hydrologic data from wells at or in the vicinity of the San Juan coal mine, San Juan County, New Mexico

    Science.gov (United States)

    Stewart, Anne M.; Thomas, Nicole

    2015-01-01

    In 2010, in cooperation with the Mining and Minerals Division (MMD) of the State of New Mexico Energy, Minerals and Natural Resources Department, the U.S. Geological Survey (USGS) initiated a 4-year assessment of hydrologic conditions at the San Juan coal mine (SJCM), located about 14 miles west-northwest of the city of Farmington, San Juan County, New Mexico. The mine produces coal for power generation at the adjacent San Juan Generating Station (SJGS) and stores coal-combustion byproducts from the SJGS in mined-out surface-mining pits. The purpose of the hydrologic assessment is to identify groundwater flow paths away from SJCM coal-combustion-byproduct storage sites that might allow metals that may be leached from coal-combustion byproducts to eventually reach wells or streams after regional dewatering ceases and groundwater recovers to predevelopment levels. The hydrologic assessment, undertaken between 2010 and 2013, included compilation of existing data. The purpose of this report is to present data that were acquired and compiled by the USGS for the SJCM hydrologic assessment.

  13. The elementary school musical as an authentic, integrated performing arts experience

    OpenAIRE

    Bespflug, Kevin Sean

    2009-01-01

    While musicals are often common arts activities in high schools in North America, little has been written about their place in elementary schools. This is surprising when many elementary schools, particularly independent schools, are starting to include them in their fine arts programming. This thesis looks carefully at the elementary school musical by first undertaking a review of literature connected to the staging of musicals. The research and writings of various theorists and educators ar...

  14. Perceptions of Elementary School Children's Parents Regarding Sexuality Education

    Science.gov (United States)

    Fisher, Christine M.; Telljohann, Susan K.; Price, James H.; Dake, Joseph A.; Glassman, Tavis

    2015-01-01

    This study examined the preferences of parents of elementary school-aged children regarding when sexuality topics should be discussed in school and at home. The survey was mailed to a national random sample of parents of elementary school age children. Overall, 92% of parents believed that sexuality education should be taught in schools.…

  15. Exploiting Elementary Landscapes for TSP, Vehicle Routing and Scheduling

    Science.gov (United States)

    2015-09-03

    similar mathematical foundation to enable gradient descent methods for discrete combinatorial optimization problems. We are also generalizing our prior...research has exploited statistical and mathematical properties of elementary landscapes to develop new gradient methods for combinatorial optimization... mathematically methods to more automatically identify elementary landscapes. If a combinatorial optimization problem is a superposition of elemen

  16. 43 CFR 17.220 - Preschool, elementary, and secondary education.

    Science.gov (United States)

    2010-10-01

    ... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Preschool, elementary, and secondary education. 17.220 Section 17.220 Public Lands: Interior Office of the Secretary of the Interior NONDISCRIMINATION IN FEDERALLY ASSISTED PROGRAMS OF THE DEPARTMENT OF THE INTERIOR Nondiscrimination on the Basis of Handicap § 17.220 Preschool, elementary,...

  17. Características de la prescripción antibiótica en los consultorios de medicina del Hospital Cayetano Heredia de Lima, Perú

    Directory of Open Access Journals (Sweden)

    Llanos-Zavalaga Fernando

    2002-01-01

    Full Text Available Fundamento: La prescripción adecuada de medicamentos incluye, entre otros aspectos, la elección de determinado medicamento en dosis y tiempo requeridos, considerando además su eficacia y conveniencia. El presente estudio transversal descriptivo, tiene como objetivo evaluar la prescripción antibiótica: proporción de prescripción y calidad de la misma, en la consulta ambulatoria del servicio de medicina del Hospital Cayetano Heredia. Métodos: La población estuvo formada por las 1.449 personas que acudieron a la consulta del 8 de enero al 2 de febrero del 2001. Para determinar la calidad se calculó una muestra de 120 personas a partir de las que formaban la población de estudio. La información fue revisada y calificada por tres médicos especialistas, teniendo como patrón referencial la United States Pharmacopeial Drug Information. Resultados: La proporción de prescripción fue del 13,53% (IC 95%: 11,77%-15,29%, sin diferencias estadísticamente significativas según edad, sexo, y consultorios. Los diagnósticos más frecuentes con prescripción antibiótica fueron: infección urinaria y faringoamigdalitis; los antibióticos más prescritos fueron: ciprofloxacina y cotrimoxazol. 70,00% de antibióticos indicados fueron prescritos con nombre genérico y 70,83% se encuentran en el Petitorio Nacional de Medicamentos Esenciales. En relación a la calidad, encontramos 81,67% (IC 95%: 79,68%-83,66% de prescripciones inadecuadas, en cuanto a duración (59,20% y dosis (20,00% del antibiótico. Conclusiones: La proporción de prescripción de antibióticos encontrada fue baja e inferior a la reportada en la literatura, mientras que la calidad inadecuada fue elevada, con valores semejantes a otros estudios. Las investigaciones en este campo son todavía escasas, siendo importante realizar más estudios que permitan documentar las características de la prescripción. Es necesario contar con una política de antibióticos que establezca

  18. Elementary vectors

    CERN Document Server

    Wolstenholme, E Œ

    1978-01-01

    Elementary Vectors, Third Edition serves as an introductory course in vector analysis and is intended to present the theoretical and application aspects of vectors. The book covers topics that rigorously explain and provide definitions, principles, equations, and methods in vector analysis. Applications of vector methods to simple kinematical and dynamical problems; central forces and orbits; and solutions to geometrical problems are discussed as well. This edition of the text also provides an appendix, intended for students, which the author hopes to bridge the gap between theory and appl

  19. Elementary metallography

    Science.gov (United States)

    Kazem, Sayyed M.

    1992-01-01

    Materials and Processes 1 (MET 141) is offered to freshmen by the Mechanical Engineering Department at Purdue University. The goal of MET 141 is to broaden the technical background of students who have not had any college science courses. Hence, applied physics, chemistry, and mathematics are included and quantitative problem solving is involved. In the elementary metallography experiment of this course, the objectives are: (1) introduce the vocabulary and establish outlook; (2) make qualitative observations and quantitative measurements; (3) demonstrate the proper use of equipment; and (4) review basic mathematics and science.

  20. San Telmo, backpackers y otras globalizaciones

    Directory of Open Access Journals (Sweden)

    Fernando Firmo

    2015-12-01

    Full Text Available Este artículo pretende contribuir al debate sobre otras formas de globalización  presentando una etnografía realizada en el barrio de San Telmo sobre mochileros que combinan en sus experiencias viaje y trabajo. Su objetivo es viajar al mismo tiempo que sacan provecho de esto para conseguir el capital necesario que les permita continuar en movimiento alrededor del globo. En este texto quiero hablar sobre estos auténticos actores de la globalización popular que ponen el foco en procesos y agentes alternativos no hegemónicos y que en este caso desarrollan su actividad en el contexto de la experiencia mochilera en San Telmo, siendo mi intención enriquecer las reflexiones sobre la globalización desde abajo.

  1. Low strength of deep San Andreas fault gouge from SAFOD core.

    Science.gov (United States)

    Lockner, David A; Morrow, Carolyn; Moore, Diane; Hickman, Stephen

    2011-04-07

    The San Andreas fault accommodates 28-34 mm yr(-1) of right lateral motion of the Pacific crustal plate northwestward past the North American plate. In California, the fault is composed of two distinct locked segments that have produced great earthquakes in historical times, separated by a 150-km-long creeping zone. The San Andreas Fault Observatory at Depth (SAFOD) is a scientific borehole located northwest of Parkfield, California, near the southern end of the creeping zone. Core was recovered from across the actively deforming San Andreas fault at a vertical depth of 2.7 km (ref. 1). Here we report laboratory strength measurements of these fault core materials at in situ conditions, demonstrating that at this locality and this depth the San Andreas fault is profoundly weak (coefficient of friction, 0.15) owing to the presence of the smectite clay mineral saponite, which is one of the weakest phyllosilicates known. This Mg-rich clay is the low-temperature product of metasomatic reactions between the quartzofeldspathic wall rocks and serpentinite blocks in the fault. These findings provide strong evidence that deformation of the mechanically unusual creeping portions of the San Andreas fault system is controlled by the presence of weak minerals rather than by high fluid pressure or other proposed mechanisms. The combination of these measurements of fault core strength with borehole observations yields a self-consistent picture of the stress state of the San Andreas fault at the SAFOD site, in which the fault is intrinsically weak in an otherwise strong crust. ©2011 Macmillan Publishers Limited. All rights reserved

  2. Does elementary school alcohol, tobacco, and marijuana use increase middle school risk?

    Science.gov (United States)

    Wilson, Nance; Battistich, Victor; Syme, S Leonard; Boyce, W Thomas

    2002-06-01

    To assess whether alcohol, tobacco, and other drug (ATOD) use in elementary school may have serious implications for continued ATOD use in middle school and beyond. Longitudinal analyses were conducted on questionnaire data from 331 middle school students who had previously provided ATOD-use data during elementary school. Non-school personnel administered questionnaires in three participating school districts in three different states. The sample of students was ethnically and geographically diverse, including students from a range of low socioeconomic status backgrounds living in rural, urban or inner-city environments. Middle school alcohol use was almost three times as likely to occur if alcohol use had occurred in elementary school (OR = 2.94, p Elementary school use of tobacco and marijuana also greatly increased the likelihood of middle school use (OR = 5.35, p elementary school, during the middle childhood years.

  3. Small angle neutron scattering (SANS) under non-equilibrium conditions

    International Nuclear Information System (INIS)

    Oberthur, R.C.

    1984-01-01

    The use of small angle neutron scattering (SANS) for the study of systems under non-equilibrium conditions is illustrated by three types of experiments in the field of polymer research: - the relaxation of a system from an initial non-equilibrium state towards equilibrium, - the cyclic or repetitive installation of a series of non-equilibrium states in a system, - the steady non-equilibrium state maintained by a constant dissipation of energy within the system. Characteristic times obtained in these experiments with SANS are compared with the times obtained from quasi-elastic neutron and light scattering, which yield information about the equilibrium dynamics of the system. The limits of SANS applied to non-equilibrium systems for the measurement of relaxation times at different length scales are shown and compared to the limits of quasielastic neutron and light scattering

  4. The Science Semester: Cross-Disciplinary Inquiry for Prospective Elementary Teachers

    Science.gov (United States)

    Ford, Danielle J.; Fifield, Steve; Madsen, John; Qian, Xiaoyu

    2013-10-01

    We describe the Science Semester, a semester-long course block that integrates three science courses and a science education methods course for elementary teacher education majors, and examine prospective elementary teachers’ developing conceptions about inquiry, science teaching efficacy, and reflections on learning through inquiry. The Science Semester was designed to provide inquiry-oriented and problem-based learning experiences, opportunities to examine socially relevant issues through cross-disciplinary perspectives, and align with content found in elementary curricula and standards. By the end of the semester, prospective elementary teachers moved from naïve to intermediate understandings of inquiry and significantly increased self-efficacy for science teaching as measured on one subscore of the STEBI-B. Reflecting on the semester, prospective teachers understood and appreciated the goals of the course and the PBL format, but struggled with the open-ended and student-directed elements of the course.

  5. Promoting Prospective Elementary Teachers' Learning to Use Formative Assessment for Life Science Instruction

    Science.gov (United States)

    Sabel, Jaime L.; Forbes, Cory T.; Zangori, Laura

    2015-01-01

    To support elementary students' learning of core, standards-based life science concepts highlighted in the "Next Generation Science Standards," prospective elementary teachers should develop an understanding of life science concepts and learn to apply their content knowledge in instructional practice to craft elementary science learning…

  6. San Jacinto Tries Management by Objectives

    Science.gov (United States)

    Deegan, William

    1974-01-01

    San Jacinto, California, has adopted a measurable institutional objectives approach to management by objectives. Results reflect, not only improved cost effectiveness of community college education, but also more effective educational programs for students. (Author/WM)

  7. Another short and elementary proof of strong subadditivity of quantum entropy

    Science.gov (United States)

    Ruskai, Mary Beth

    2007-08-01

    A short and elementary proof of the joint convexity of relative entropy is presented, using nothing beyond linear algebra. The key ingredients are an easily verified integral representation and the strategy used to prove the Cauchy-Schwarz inequality in elementary courses. Several consequences are proved in a way which allows an elementary proof of strong subadditivity in a few more lines. Some expository material on Schwarz inequalities for operators and the Holevo bound for partial measurements is also included.

  8. Preservice elementary teachers learning of astronomy

    Science.gov (United States)

    Fidler, Chuck Gary

    The dissertation presents a new approach for the study of preservice elementary teacher astronomy education. The approach suggests that learning astronomical concepts are facilitated by greater sophistication in scale perception and spatial-aptitude. This dissertation is underscored by the national call for elementary science education reform efforts and suggests certain strategies shown more effective for the development of accurate astronomical comprehension. The present research study describes how preservice elementary teachers conceptualize and communicate ideas about Space. Instead of assuming a universal mental conception of cosmic orientations and relationships, the dissertation claims that the perception of Space related dimensions vary among preservice elementary teachers. Furthermore, the dissertation suggests individual perceptions of the scale sizes and orientations of celestial systems have direct influences on mental models used to organize and communicate astronomical information. The development of inaccurate mental models of the scaled dimensions of Space may perpetuate the teacher-student cycle of misconception and naive-theory generation among children in elementary education settings. The ability to conceptualize the vast cosmos is facilitated by the minds ability to think about vast scales and orientations of celestial objects. The Earth-based perspective of astronomy education compels the learner to think about astronomical principles within imaginary frames of reference and across unfamiliar scaled dimensions. Therefore, mental astronomical model building is underscored by the perception of scale and cosmic spatiality. This study suggests these cognitive skill sets are interconnected and facilitate the learning of accurate astronomy principles; as well as play an important role when designing an astronomy education program for preservice elementary teachers. This research study is comprised of three separate standalone articles designed and

  9. Elementary School Mathematics Priorities

    Science.gov (United States)

    Wilson, W. Stephen

    2009-01-01

    This article first describes some of the basic skills and knowledge that a solid elementary school mathematics foundation requires. It then elaborates on several points germane to these practices. These are then followed with a discussion and conclude with final comments and suggestions for future research. The article sets out the five…

  10. Como güelfos y gibelinos: los colegios de San Bernardo y San Antonio Abad en el Cuzco durante el siglo XVII

    Directory of Open Access Journals (Sweden)

    Guibovich Pérez, Pedro M

    2006-04-01

    Full Text Available This article deals with the conflicts that involved the San Bernardo and San Antonio schools all along the seventeenth century. The author proposes a new approach to explain the social history of colonial Cuzco. He mantains that the root of the confrontation has to do with the privileges that enjoy the jesuits in the provision of academical degrees, a basic requirement to obtain appointments in the civil and eclesiastical administration. To understand this social dinamic, he reconstructs the institutional history of both schools, and reveals the interests that defend the main actors of this secular conflict.

    Los conflictos que enfrentaron a los colegios de San Bernardo y San Antonio Abad a lo largo del siglo XVII es el tema central de estudio de este ensayo. El autor propone una nueva lectura a este episodio de la historia social del Cuzco colonial. Sostiene que en la raíz de los enfrentamientos estuvo el privilegio que gozaban los jesuitas para la concesión de grados académicos, requisitos fundamentales para obtener cargos en la administración civil y eclesiástica. Para entender la dinámica social, el autor reconstruye la historia institucional de los colegios y los intereses en juego de los principales protagonistas del secular conflicto.

  11. Principals' Opinions of Organisational Justice in Elementary Schools in Turkey

    Science.gov (United States)

    Aydin, Inayet; Karaman-Kepenekci, Yasemin

    2008-01-01

    Purpose--This study aims to present the opinions of public elementary school principals in Turkey about the current organisational justice practices among teachers from the distributive, procedural, interactional, and rectificatory dimensions. Design/methodology/approach--The opinions of 11 public elementary school principals in Ankara about…

  12. Vector valued logarithmic residues and the extraction of elementary factors

    NARCIS (Netherlands)

    H. Bart (Harm); T. Ehrhardt; B. Silbermann

    2007-01-01

    textabstractAn analysis is presented of the circumstances under which, by the extraction of elementary factors, an analytic Banach algebra valued function can be transformed into one taking invertible values only. Elementary factors are generalizations of the simple scalar expressions λ – α, the

  13. April 1906 San Francisco, USA Images

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 1906 San Francisco earthquake was the largest event (magnitude 8.3) to occur in the conterminous United States in the 20th Century. Recent estimates indicate...

  14. Tachyons: may they have a role in elementary particle physics

    International Nuclear Information System (INIS)

    Recami, E.; Rodrigues, W. A.

    1985-01-01

    The possible role of space like objects in elementary particle physics (and in quantum mechanics) is reviewed and discussed, mainly by exploiting the explicit consequences of the peculiar relativistic mechanics of tachyons. Particular attention is paid : 1) to tachyons as the possible carriers of interactions (''internal lines''); e.g., to the links between ''virtual particles'' and superluminal objects; 2) to the possibility of ''vacuum decays'' at the classical level; 3) to a Lorentz-invariant bootstrap model; 4) to the apparent shape of the tachyonic elementary particles (''elementary tachyons'') and its possible connection with the de Broglie wave-particle dualism

  15. Tachyons: may they have a role in elementary particle physics

    International Nuclear Information System (INIS)

    Recami, E.; Rodrigues Junior, W.A.

    1985-01-01

    The possible role of space-like objects in elementary particle physics (and in quantum mechanics) is reviewed and discussed, mainly by exploiting the explicit consequences of the peculiar relativistic mechanics of Tachyons. Particular attention is paid: (i) to tachyons as the possible carriers of interactions ('internal lines'); e.g., to the links between 'virtual particles' and superluminal objects; (ii) to the possibility of 'vacuum decays' at the classical level; (iii) to a Lorentz-invariant bootstrap model; (iv) to the apparent shape of the tachyonic elementary particles ('elementary tachyons') and its possible connection with the de Broglie wave-particle dualism. (Author) [pt

  16. SANS from interpenetrating polymer networks

    International Nuclear Information System (INIS)

    Markotsis, M.G.; Burford, R.P.; Knott, R.B.; Australian Nuclear Science and Technology Organisation, Menai, NSW; Hanley, T.L.; CRC for Polymers,; Australian Nuclear Science and Technology Organisation, Menai, NSW; Papamanuel, N.

    2003-01-01

    Full text: Interpenetrating polymer networks (IPNs) have been formed by combining two polymeric systems in order to gain enhanced material properties. IPNs are a combination of two or more polymers in network form with one network polymerised and/or crosslinked in the immediate presence of the other(s).1 IPNs allow better blending of two or more crosslinked networks. In this study two sets of IPNs were produced and their microstructure studied using a variety of techniques including small angle neutron scattering (SANS). The first system combined a glassy polymer (polystyrene) with an elastomeric polymer (SBS) with the glassy polymer predominating, to give a high impact plastic. The second set of IPNs contained epichlorohydrin (CO) and nitrile rubber (NBR), and was formed in order to produce novel materials with enhanced chemical and gas barrier properties. In both cases if the phase mixing is optimised the probability of controlled morphologies and synergistic behaviour is increased. The PS/SBS IPNs were prepared using sequential polymerisation. The primary SBS network was thermally crosslinked, then the polystyrene network was polymerised and crosslinked using gamma irradiation to avoid possible thermal degradation of the butadiene segment of the SBS. Tough transparent systems were produced with no apparent thermal degradation of the polybutadiene segments. The epichlorohydrin/nitrile rubber IPNs were formed by simultaneous thermal crosslinking reactions. The epichlorohydrin network was formed using lead based crosslinker, while the nitrile rubber was crosslinked by peroxide methods. The use of two different crosslinking systems was employed in order to achieve independent crosslinking thus resulting in an IPN with minimal grafting between the component networks. SANS, Transmission electron microscopy (TEM), and atomic force microscopy (AFM) were used to examine the size and shape of the phase domains and investigate any variation with crosslinking level and

  17. Southern Association of Colleges and Schools Accreditation:Impact on Elementary Student Performance

    Directory of Open Access Journals (Sweden)

    Darlene Y. Bruner

    2004-07-01

    Full Text Available Currently, 848 Georgia public elementary schools that house third- and fifth-grades in the same building use the Southern Association of Colleges and Schools (SACS accreditation as a school improvement model. The purpose of this investigation was to determine whether elementary schools that are SACS accredited increased their levels of academic achievement at a higher rate over a five-year period than elementary schools that were not SACS accredited as measured by the Iowa Test of Basic Skills (ITBS. Independent variables included accreditation status, socioeconomic status (SES of schools, and baseline scores of academic achievement. Dependent variables included mathematics and reading achievement scores. There was a statistically significant difference found when examining the SES of schools and baseline scores of the elementary schools. SACS accredited elementary schools had higher SES and higher baseline scores in third- and fifth grade mathematics and reading. However, the multiple regression model indicated no statistically significant differences in gain scores between SACS accredited and non-SACS accredited elementary schools in third- and fifth-grade mathematics and reading achievement during the five year period examined in this study.

  18. Locus of Control as It Relates to the Teaching Style of Elementary Teachers

    Science.gov (United States)

    Ture, Abidemi

    2013-01-01

    This research explored the relationship between elementary teachers' locus of control and teaching style. This research observed elementary teachers in their classrooms coupled with data gathered from information sheets, surveys, and interviews to determine if a relationship exists between the locus of control of the elementary teachers and…

  19. Perceptions of Elementary School Students: Experiences and Dreams about the Life Studies Course

    Science.gov (United States)

    Baysal, Z. Nurdan; Tezcan, Özlem Apak; Araç, Kamil Ersin

    2018-01-01

    This study seeks to identify elementary school students' views and perceptions of the Life Studies course through verbal and visual instruments. It employs a descriptive phenomenological research design. The study surveyed second- and third-grade students attending one private elementary school and two state elementary schools. The data was…

  20. Mortalidad en recién nacidos de extremo bajo peso al nacer en la unidad de neonatología del Hospital Nacional Cayetano Heredia entre enero 2000 y diciembre 2004.: January 2000 to December 2004

    Directory of Open Access Journals (Sweden)

    Pablo Lohmann Gandini-Billinghurst

    2006-07-01

    Full Text Available Objetivos: Identificar los factores demográficos y clínicos más frecuentes en recién nacidos con peso menor a 1 000g al nacimiento (extremo bajo peso fallecidos en la unidad de neonatología del Hospital Nacional Cayetano Heredia. Material y métodos: El estudio diseñado es una serie de casos. Se evaluaron las epicrisis y la base de datos NEOCOSUR de los pacientes con estas características, fallecidos durante la hospitalización, de enero 2000 a diciembre 2004. Resultados: Se encontraron 99 pacientes, con registros completos en 87 de ellos (88% de la muestra. La mortalidad en esta población fluctuó entre 70 y 85%, siendo las siguientes condiciones clínicas más frecuentes: control prenatal inadecuado, edad gestacional menor a 27 semanas, uso de corticoides prenatales, empleo de surfactante, enfermedad de membrana hialina-síndrome de distrés respiratorio y hemorragia intraventricular. Conclusiones: Los cuidados prenatales, el uso de corticoides prenatales y surfactante son factores modificables que tendrían impacto en la mortalidad. Síndrome de Distrés Respiratorio-membrana hialina, sepsis y hemorragia intraventricular, constituyen las entidades de morbilidad más frecuentes. El alcance de este estudio permite formular estas hipótesis. La evaluación de las mismas requiere estudios tipo observacionales y analíticos posteriores. (Rev Med Hered 2006;17:141-147.

  1. Tratamiento de la Enfermedad de Graves con I131: Primeros casos en la Unidad de Endocrinología Pediátrica del Hospital Nacional Cayetano Heredia, Lima-Perú: Case Report.

    Directory of Open Access Journals (Sweden)

    Javier Ernesto SÁNCHEZ POVIS

    2006-01-01

    Full Text Available Objetivo: Describir la respuesta al tratamiento con I131 y sus complicaciones, en niños y adolescentes con enfermedad de Graves. Material y Métodos: Se estudiaron retrospectivamente las historias clínicas de los pacientes con diagnóstico de enfermedad de Graves y que recibieron tratamiento con I131 atendidos hasta 1999 en la Unidad de Endocrinología Pediátrica del Hospital Nacional Cayetano Heredia. Se registraron datos demográficos, peso tiroideo, captación de yodo, dosis de I131 recibida y evolución clínica y de función tiroidea. Resultados: Se incluyeron 13 pacientes: 1 varón y 12 mujeres. El peso glandular promedio obtenido fue 47,56 +10,70 gramos. La dosis inicial calculada fue 3,92 + 0,95 mCi, con un total de 4,47 + 1,66 mCi y tiempo medio de seguimiento de 2,76 años. Diez pacientes recibieron 1 sola dosis, 2 pacientes dos dosis y un paciente tres dosis, remitiendo el 100%. Los pacientes que recibieron una sola dosis, mostraron remisión del cuadro en 13,13 semanas y el tiempo promedio de remisión de toda la muestra fue 24,62 semanas. La prevalencia de hipotiroidismo a los 6 meses de iniciado el tratamiento fue 66,66%, y 83,33% a las 257 semanas. Conclusión: I131 fue 100% eficaz en el tratamiento de la enfermedad de Graves de los niños y adolescentes en esta pequeña serie de casos. (Rev Med Hered 2006;17:8-14.

  2. Mathematical Models of Elementary Mathematics Learning and Performance. Final Report.

    Science.gov (United States)

    Suppes, Patrick

    This project was concerned with the development of mathematical models of elementary mathematics learning and performance. Probabilistic finite automata and register machines with a finite number of registers were developed as models and extensively tested with data arising from the elementary-mathematics strand curriculum developed by the…

  3. Teaching - learning plan on nuclear energy for elementary school

    International Nuclear Information System (INIS)

    2009-03-01

    This is for teaching - learning curriculum about nuclear energy for elementary school students. It consist of four titles, which are I saved this much, learning energy through quiz, I work for nuclear power plant and would mayor build a nuclear power plant in our town? It was written to teach nuclear power plant and nuclear energy to elementary school students in easy way.

  4. Elementary School Students Perception Levels of Problem Solving Skills

    Science.gov (United States)

    Yavuz, Günes; Yasemin, Deringöl; Arslan, Çigdem

    2017-01-01

    The purpose of this study is to reveal the perception levels of problem solving skills of elementary school students. The sample of the study is formed by totally 264 elementary students attending to 5th, 6th, 7th and 8th grade in a big city in Turkey. Data were collected by means of "Perception Scale for Problem Solving Skills" which…

  5. Elementary teachers past experiences: A narrative study of the past personal and professional experiences of elementary teachers who use science to teach math and reading

    Science.gov (United States)

    Acre, Andrea M.

    This qualitative study investigated the experiences of four elementary teachers who have elected to use science to teach math and reading/language arts in an attempt to identify what motivates them to do so. Identifying what experiences have motivated these teachers to go against the gain and teach elementary science in this current era of high-stakes tests is of the upmost importance given that science is being eliminated from the elementary curriculum and it is during the elementary years that students' nurture and develop their interest in science. Additionally, the United States is failing to produce enough college graduates in STEM areas to fill the thousands of STEM jobs each year. Through a review of the literature, the past trends and current trends of elementary science education were explored as well as teacher training. Furthermore, the literature reviewed inquiry teaching which is considered to be the most effective teaching method when teaching science at any level. Using John Dewey's Interest and Effort Relationship Theory and the Self-Determination Motivation Theory to guide this study, there were five prominent themes which emerged from the reconstructed stories of the four teachers: positive experiences with science, neutral/negative experiences with science, seeks meaningful professional development, influence and support from others, and regret/wants to do more.

  6. Elementary children’s retrodictive reasoning about earth science

    OpenAIRE

    Matthew H. Schneps; Julie C. Libarkin

    2012-01-01

    We report on interviews conducted with twenty-one elementary school children (grades 1-5) about a number of Earth science concepts. These interviews were undertaken as part of a teacher training video series designed specifically to assist elementary teachers in learning essential ideas in Earth science. As such, children were interviewed about a wide array of earth science concepts, from rock formation to the Earth’s interior. We analyzed interview data primarily to determine whether or not ...

  7. Relating Building and Classroom Conditions to Student Achievement in Virginia's Elementary Schools

    OpenAIRE

    Lanham III, James Warren

    1999-01-01

    The relationships between student achievement and a number of variables relating to building and classroom conditions in Virginia elementary schools were examined. A systematic random sample of 300 schools was selected from all elementary schools in Virginia with grades three and five. Data on building condition, classroom condition, and demographics were collected with "An Assessment of Building and Classroom Conditions in Elementary Schools in Virginia." Building prin...

  8. USEEIO Elementary Flows and Life Cycle Impact Assessment (LCIA) Characterization Factors

    Data.gov (United States)

    U.S. Environmental Protection Agency — This file contains all the elementary flows (defined in ISO 14044) used in the USEEIO model. The elementary flows come from a draft master list used by USEPA...

  9. Interaction of relativistic elementary atoms with matter. I. General formulas

    International Nuclear Information System (INIS)

    Mrowczyn'ski, S.

    1987-01-01

    The problem of the interaction of relativistic elementary atoms (Coulomb bound states of elementary particles such as positronium, pionium, etc.) with matter is studied in the reference frame where the atom is initially at rest. An atom of matter is treated as a spinless structureless fast particle. The amplitudes of elementary-atom interaction are derived in the Born approximation under the assumption that a momentum transfer to the atom does not significantly exceed an inverse Bohr radius of the atom. The elementary-atom excitation and ionization processes are considered. The transitions where the spin projection of the atom component is reversed are also studied. In particular the matrix elements for para-ortho and ortho-para transitions are given. The spin structure of the amplitudes is discussed in detail. The sum rules, which allow the calculation of the cross sections summed over atom final states are found. Finally the formulas of the atom interaction cross sections are presented

  10. Preparing perservice teachers to teach elementary school science

    Science.gov (United States)

    Lewis, Amy D.

    The development of scientifically literate citizens begins in the elementary school. Yet elementary school teachers are ill prepared to teach science (Trygstad, Smith, Banilower, Nelson, & Horizon Research, Inc., 2013). The research base on teacher preparation finds that programs designed to prepare elementary teachers are inadequate in providing both the content knowledge and pedagogical content knowledge necessary to teach science effectively (Baumgartner, 2010; Bodzin & Beerer, 2003; Bulunuz & Jarrett 2009). This mixed methods study examined what happened when a science methods course was interactively co-taught by an expert in elementary teaching methods and a physics expert. This study also aimed to discover what aspects of the curriculum pre-service teachers (PSTs) said helped them in developing their understanding of science content and scientific reasoning, and how to implement inquiry practices to teach science. A nested case study of three PSTs provided descriptive portraits of student experiences in the class. A whole class case analysis was used to examine what PSTs learned in terms of science, scientific reasoning skills, and pedagogical content knowledge (PCK) from their experiences in the course. It was found that students often conflated science content with the experiences they had in learning the content. Although PSTs felt the interactive co-teaching model effectively created a balance between theory and practice, it was their experiences doing science--conducting physical experiments, developing and discussing scientific models, and the use of inquiry-based instruction--that they credited for their learning. Even with careful curriculum planning, and a course purposely designed to bridge the theory to practice gap, this study found one semester-long methods course to be insufficient in providing the vast content knowledge and PCK elementary school science teachers need.

  11. Quantitative elementary mode analysis of metabolic pathways: the example of yeast glycolysis

    Directory of Open Access Journals (Sweden)

    Kanehisa Minoru

    2006-04-01

    Full Text Available Abstract Background Elementary mode analysis of metabolic pathways has proven to be a valuable tool for assessing the properties and functions of biochemical systems. However, little comprehension of how individual elementary modes are used in real cellular states has been achieved so far. A quantitative measure of fluxes carried by individual elementary modes is of great help to identify dominant metabolic processes, and to understand how these processes are redistributed in biological cells in response to changes in environmental conditions, enzyme kinetics, or chemical concentrations. Results Selecting a valid decomposition of a flux distribution onto a set of elementary modes is not straightforward, since there is usually an infinite number of possible such decompositions. We first show that two recently introduced decompositions are very closely related and assign the same fluxes to reversible elementary modes. Then, we show how such decompositions can be used in combination with kinetic modelling to assess the effects of changes in enzyme kinetics on the usage of individual metabolic routes, and to analyse the range of attainable states in a metabolic system. This approach is illustrated by the example of yeast glycolysis. Our results indicate that only a small subset of the space of stoichiometrically feasible steady states is actually reached by the glycolysis system, even when large variation intervals are allowed for all kinetic parameters of the model. Among eight possible elementary modes, the standard glycolytic route remains dominant in all cases, and only one other elementary mode is able to gain significant flux values in steady state. Conclusion These results indicate that a combination of structural and kinetic modelling significantly constrains the range of possible behaviours of a metabolic system. All elementary modes are not equal contributors to physiological cellular states, and this approach may open a direction toward a

  12. The Basic Design Report of the 40M SANS Instrument

    Energy Technology Data Exchange (ETDEWEB)

    Han, Young Soo; Lee, Chang Hee; Hwang, Dong Gil; Kim, Hak Rho [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of); Kim, Tae Hwan; Choi, Sung Min [Korea Advanced Institute of Science and Technology, Daejeon (Korea, Republic of)

    2006-04-15

    The HANARO cold neutron research facility project was launched on July 1, 2003. A state of the art SANS instrument was selected as a top-priority instrument by an instrument selection committee, which consisted of domestic users and HANARO personnel. An instrument development team and an international and domestic instrument advisory team were formulated. The guide and the instrument simulation were performed using Vitess software and the optimum basic design was completed based on the simulation results and the international advisory team reviews. The optimum design of the guide for the 40M SANS instrument was completed and the optimum basic design of the 40M the SANS instrument was also completed based on the Vitess simulation results. The Q range of the instrument will cover from 0.0008 to 1.0 A-1 and the maximum flux at a sample position can reach about 5.5x10 7 n/cm2sec. The simulation results and the basic design product will be used for the detailed design and the construction of the SANS instrument. The simulation results could be applied to the development of the other instrument.

  13. Assessing Elementary Lesions in Gout by Ultrasound

    DEFF Research Database (Denmark)

    Terslev, Lene; Gutierrez, Marwin; Christensen, Robin

    2015-01-01

    OBJECTIVE: To test the reliability of the consensus-based ultrasound (US) definitions of elementary gout lesions in patients. METHODS: Eight patients with microscopically proven gout were evaluated by 16 sonographers for signs of double contour (DC), aggregates, erosions, and tophi in the first......, respectively. The best reliability was seen for erosions (κ 0.74, 95% CI 0.65-0.81) and lowest for aggregates (κ 0.21, 95% CI 0.04-0.37). CONCLUSION: This is the first step to test consensus-based US definitions on elementary lesions in patients with gout. High intraobserver reliability was found when applying...

  14. Inappropriate Lessons: Elementary Schools and the Social Organization of Sexuality

    Science.gov (United States)

    Boas, Erica Misako

    2013-01-01

    This dissertation responds to the question: How is sexuality organized in elementary schools? I argue that despite the absence of overt discussions on sexuality in elementary schools, sexuality is "organized" through social processes that are recursively linked to ideology. Due to the widely held belief that "children" and…

  15. Common Core Implementation Decisions Made by Principals in Elementary Schools

    Science.gov (United States)

    Norman, Alexis Cienfuegos

    2016-01-01

    The purpose of this study was to understand the decisions elementary principals have made during the Common Core State Standards reform. Specifically, (a) what decisions principals have made to support Common Core implementation, (b) what strategies elementary principals have employed to communicate with stakeholders about Common Core State…

  16. Reconceptualizing Elementary Teacher Preparation : A case for informal science education

    NARCIS (Netherlands)

    Avraamidou, Lucy

    2015-01-01

    The purpose of this case study was to explore the ways in which 3 different informal science experiences in the context of an elementary methods course influenced a group of prospective elementary teachers' ideas about science teaching and learning as well as their understandings about the role of

  17. Upper Elementary Students' Motivation to Read Fiction and Nonfiction

    Science.gov (United States)

    Parsons, Allison Ward; Parsons, Seth A.; Malloy, Jacquelynn A.; Gambrell, Linda B.; Marinak, Barbara A.; Reutzel, D. Ray; Applegate, Mary D.; Applegate, Anthony J.; Fawson, Parker C.

    2018-01-01

    This research explores upper elementary students' motivation to read fiction and nonfiction. Using expectancy-value theory, the researchers developed separate surveys to measure motivation to read fiction and nonfiction. Researchers administered surveys to 1,104 upper elementary students (grades 3-6) in multiple locations across the United States…

  18. Roles of Teachers in Orchestrating Learning in Elementary Science Classrooms

    Science.gov (United States)

    Zhai, Junqing; Tan, Aik-Ling

    2015-01-01

    This study delves into the different roles that elementary science teachers play in the classroom to orchestrate science learning opportunities for students. Examining the classroom practices of three elementary science teachers in Singapore, we found that teachers shuttle between four key roles in enabling student learning in science. Teachers…

  19. Influence of passive smoking on learning in elementary school.

    Science.gov (United States)

    Jorge, Juliana Gomes; Botelho, Clóvis; Silva, Ageo Mário Cândido; Moi, Gisele Pedroso

    2016-01-01

    To analyze the association between household smoking and the development of learning in elementary schoolchildren. Cross-sectional study with 785 students from the 2nd to the 5th year of elementary school. Students were evaluated by the School Literacy Screening Protocol to identify the presence of learning disabilities. Mothers/guardians were interviewed at home through a validated questionnaire. Descriptive and bivariate analysis, as well as multivariate Poisson regression, were performed. In the final model, the variables associated with learning difficulties were current smoking at the household in the presence of the child (PR=6.10, 95% CI: 4.56 to 8.16), maternal passive smoking during pregnancy (PR=1.46, 95% CI: 1.07 to 2.01), students attending the 2nd and 3rd years of Elementary School (PR=1.44, 95% CI: 1.10 to 1.90), and being children of mothers with only elementary level education (PR=1.36, 95% CI: 1.04 to 1.79). The study demonstrated an association between passive exposure to tobacco smoke and learning difficulties at school. Copyright © 2016 Sociedade Brasileira de Pediatria. Published by Elsevier Editora Ltda. All rights reserved.

  20. Radon emanation on San Andreas Fault

    International Nuclear Information System (INIS)

    King, C.-Y.

    1978-01-01

    It is stated that subsurface radon emanation monitored in shallow dry holes along an active segment of the San Andreas fault in central California shows spatially coherent large temporal variations that seem to be correlated with local seismicity. (author)

  1. Playing Golf Is Elementary

    Science.gov (United States)

    Goldman, Jill S.; Pfluge, Kevin F.

    2010-01-01

    Golf is a lifelong activity that people of all ages can enjoy if they experience success and have fun. Early involvement in the sport facilitates the development of the ability to strike an object with an implement. Striking with implements can be challenging for young children and teachers, but golf can be taught in all elementary school settings…

  2. THE CONCEPT OF VOCATIONAL TRAINING OF FUTURE ELEMENTARY SCHOOL TEACHER TO INFORMATICS TRAINING

    Directory of Open Access Journals (Sweden)

    Olena Sagan

    2016-09-01

    Full Text Available In the article the problem of professional training of future elementary school teacher to teach Informatics of junior schoolchild is revealed. Rapid development of information and communication technologies actualizes the high-quality requirements to informational competent members of society. Transformation of content of primary education, namely putting Informatics in the curricula, exerted impact on a social request of the elementary school teacher who doesn’t only thoroughly use means of information technologies, but also teaches Informatics as invariant discipline of elementary school. In work it is designed the methodical model of training of future elementary school teacher for teaching Informatics, its purpose is forming of methodology informational competence at future elementary school teacher, which is based on theoretical and practical readiness for teaching Informatics of junior schoolchild and is shown in abilities to organize of the teaching and educational process. Finding of a ratio of essential results of training in higher education institution and general and professional competences which were determined by means of expert evaluations became a basis of a substantial component of system. We design the expected result in the form of competence-based model of future elementary school teacher in a perspective of its preparation for the decision the informational and the methodology-informational tasks of elementary school.

  3. Do You Really Want to Know? Elementary Music Personnel and Potential in Utah

    Science.gov (United States)

    Walker, Loretta Niebur

    2015-01-01

    This is the second of two articles reporting the results of a study by the author regarding the status of elementary music education in the state of Utah. This article focuses on the qualifications of Utah's elementary music teachers (music certified, elementary classroom certified, artists-in-residence, volunteers, and paraprofessionals) and the…

  4. The Effects of Social Capital Levels in Elementary Schools on Organizational Information Sharing

    Science.gov (United States)

    Ekinci, Abdurrahman

    2012-01-01

    This study aims to assess the effects of social capital levels at elementary schools on organizational information sharing as reported by teachers. Participants were 267 teachers selected randomly from 16 elementary schools; schools also selected randomly among 42 elementary schools located in the city center of Batman. The data were analyzed by…

  5. Practices of Elementary Principals in Influencing New Teachers to Remain in Education

    OpenAIRE

    Palermo, Thelma D.

    2002-01-01

    The grounded theory presented in this study describes practices elementary principals utilize in influencing new teachers to remain in education. Eleven teachers and three elementary principals from one school division in Virginia participated in this study. Interview data were collected, elementary principals were shadowed, and documents were analyzed. Thematic categories and sub categories were formed through data analysis. The grounded theory that resulted from this study is: principals wh...

  6. Crustal structure of the coastal and marine San Francisco Bay region, California

    Science.gov (United States)

    Parsons, Tom

    2002-01-01

    As of the time of this writing, the San Francisco Bay region is home to about 6.8 million people, ranking fifth among population centers in the United States. Most of these people live on the coastal lands along San Francisco Bay, the Sacramento River delta, and the Pacific coast. The region straddles the tectonic boundary between the Pacific and North American Plates and is crossed by several strands of the San Andreas Fault system. These faults, which are stressed by about 4 cm of relative plate motion each year, pose an obvious seismic hazard.

  7. American Elementary Education Pre-Service Teachers' Attitudes towards Biotechnology Processes

    Science.gov (United States)

    Chabalengula, Vivien Mweene; Mumba, Frackson; Chitiyo, Jonathan

    2011-01-01

    This study examined elementary education pre-service teachers' attitudes towards biotechnology processes. A sample comprised 88 elementary education pre-service teachers at a mid-sized university in the Midwest of the USA. Sixty and 28 of these pre-service teachers were enrolled in Introductory Science Methods course and Advance Science Methods…

  8. Industrial Arts: Vehicle for Career Awareness in the Elementary School

    Science.gov (United States)

    Wircenski, Jerry L.; Fales, James F.

    1977-01-01

    The authors propose the use of industrial arts as a vehicle for providing career awareness in the elementary school. They cite a 2-week integrated unit in manufacturing conducted at Hershey Elementary School (Lafayette, Indiana) where the curriculum encouraged second and third graders to explore the world of work. (Editor/HD)

  9. Elementary Pre-Service Teachers' Mathematics Anxiety and Mathematics Teaching Anxiety

    Science.gov (United States)

    Haciomeroglu, Guney

    2014-01-01

    The present study examined the structure of elementary pre-service teachers' mathematics anxiety and mathematics teaching anxiety by asking whether the two systems of anxiety are related. The Turkish Mathematics Anxiety Rating Scale Short Version and the Mathematics Teaching Anxiety Scale were administered to 260 elementary pre-service teachers.…

  10. Balance Sheet for Catholic Elementary Schools: 2001 Income and Expenses.

    Science.gov (United States)

    Kealey, Robert J.

    This financial report was designed to provide a basis for informed discussion regarding potential forms of federal and state assistance to students attending Catholic elementary schools, and to encourage improved local management. The information presented in this study is based upon a random sample of Catholic elementary schools across the United…

  11. DNA array analysis of gene expression changes by Choto-san in the ischemic rat brain

    OpenAIRE

    Tohda, Michihisa; Matsumoto, Kinzo; Hayashi, Hisae; Murakami, Yukihisa; Watanabe, Hiroshi

    2004-01-01

    The effects of Choto-san on gene expression in the dementia model rat brain were studied using a DNA microarray system. Choto-san inhibited the expression of 181 genes that has been enhanced by permanent occlusion of the bilateral common carotid arteries (2VO). Choto-san also reversed the expression inhibition of 32 genes induced by 2VO. These results may suggest that Choto-san, which has been therapeutically used as an antidementive drug, shows therapeutic effects through gene expression cha...

  12. Public Involvement and Response Plan (Community Relations Plan), Presidio of San Francisco, San Francisco, California

    Science.gov (United States)

    1992-03-01

    passenger ship destination, and tourist attraction. San Francisco’s location and cultural and recreational opportunities make it a prime tourism center...equestrians, she said. C-52 m% smm : - TUESDAY, JUNE 19,1990 * . COPYKIGHT 1*90/THE TIMES MlRkOX COMPANY /CC/1 JO PAGES P. A-l, 22, 23 Complex

  13. Comparison of SANS instruments at reactors and pulsed sources

    International Nuclear Information System (INIS)

    Thiyagarajan, P.; Epperson, J.E.; Crawford, R.K.; Carpenter, J.M.; Hjelm, R.P. Jr.

    1992-01-01

    Small angle neutron scattering is a general purpose technique to study long range fluctuations and hence has been applied in almost every field of science for material characterization. SANS instruments can be built at steady state reactors and at the pulsed neutron sources where time-of-flight (TOF) techniques are used. The steady state instruments usually give data over small q ranges and in order to cover a large q range these instruments have to be reconfigured several times and SANS measurements have to be made. These instruments have provided better resolution and higher data rates within their restricted q ranges until now, but the TOF instruments are now developing to comparable performance. The TOF-SANS instruments, by using a wide band of wavelengths, can cover a wide dynamic q range in a single measurement. This is a big advantage for studying systems that are changing and those which cannot be exactly reproduced. This paper compares the design concepts and performances of these two types of instruments

  14. Volcano hazards in the San Salvador region, El Salvador

    Science.gov (United States)

    Major, J.J.; Schilling, S.P.; Sofield, D.J.; Escobar, C.D.; Pullinger, C.R.

    2001-01-01

    San Salvador volcano is one of many volcanoes along the volcanic arc in El Salvador (figure 1). This volcano, having a volume of about 110 cubic kilometers, towers above San Salvador, the country’s capital and largest city. The city has a population of approximately 2 million, and a population density of about 2100 people per square kilometer. The city of San Salvador and other communities have gradually encroached onto the lower flanks of the volcano, increasing the risk that even small events may have serious societal consequences. San Salvador volcano has not erupted for more than 80 years, but it has a long history of repeated, and sometimes violent, eruptions. The volcano is composed of remnants of multiple eruptive centers, and these remnants are commonly referred to by several names. The central part of the volcano, which contains a large circular crater, is known as El Boquerón, and it rises to an altitude of about 1890 meters. El Picacho, the prominent peak of highest elevation (1960 meters altitude) to the northeast of the crater, and El Jabali, the peak to the northwest of the crater, represent remnants of an older, larger edifice. The volcano has erupted several times during the past 70,000 years from vents central to the volcano as well as from smaller vents and fissures on its flanks [1] (numerals in brackets refer to end notes in the report). In addition, several small cinder cones and explosion craters are located within 10 kilometers of the volcano. Since about 1200 A.D., eruptions have occurred almost exclusively along, or a few kilometers beyond, the northwest flank of the volcano, and have consisted primarily of small explosions and emplacement of lava flows. However, San Salvador volcano has erupted violently and explosively in the past, even as recently as 800 years ago. When such eruptions occur again, substantial population and infrastructure will be at risk. Volcanic eruptions are not the only events that present a risk to local

  15. Mathematics Anxiety and Beliefs of Turkish Pre-Service Elementary Teachers

    Science.gov (United States)

    Uysal, Figen; Dede, Yüksel

    2016-01-01

    The purpose of this study was to investigate the relationship between pre-service elementary teachers' mathematics teaching beliefs and mathematics anxiety. The participants of the study consist of 96 pre-service elementary teachers from a department of primary education in a state university in Turkey during the 2010-2011 spring term. Mathematics…

  16. Collective Student Trust: A Social Resource for Urban Elementary Students

    Science.gov (United States)

    Adams, Curt M.

    2014-01-01

    Purpose: The purpose of this study was to determine if collective student trust functions as a resource for urban elementary students. Methods: Data from 1,646 students nested in 56 elementary schools in an urban school district were used to test the hypothesized effect of collective student trust on school identification, self-regulated…

  17. Implementation of an Online Climate Science Course at San Antonio College

    Science.gov (United States)

    Reyes, R.; Strybos, J.

    2016-12-01

    San Antonio College (SAC) plans to incorporate an online climate science class into the curriculum with a focus on local weather conditions and data. SAC is part of a network of five community colleges based around San Antonio, Texas, has over 20,000 students enrolled, and its student population reflects the diversity in ethnicity, age and gender of the San Antonio community. The college understands the importance of educating San Antonio residents on climate science and its complexities. San Antonio residents are familiar with weather changes and extreme conditions. The region has experienced an extreme drought, including water rationing in the city. Then, this year's El Niño intensified expected annual rainfalls and flash floods. The proposed climate science course will uniquely prepare students to understand weather data and the evidence of climate change impacting San Antonio at a local level. This paper will discuss the importance and challenges of introducing the new climate science course into the curriculum, and the desired class format that will increase the course's success. Two of the most significant challenges are informing students about the value of this class and identifying the best teaching format. Additionally, measuring and monitoring enrollment will be essential to determine the course performance and success. At the same time, Alamo Colleges is modifying the process of teaching online classes and is officially working to establish an online college. Around 23% of students enrolled in SAC offered courses are currently enrolled in online courses only, representing an opportunity to incorporate the climate science class as an online course. Since the proposed course will be using electronic textbooks and online applications to access hyperlocal weather data, the class is uniquely suited for online students.

  18. SANS study of three-layer micellar particles

    CERN Document Server

    Plestil, J; Kuklin, A I; Cubitt, R

    2002-01-01

    Three-layer nanoparticles were prepared by polymerization of methyl methacrylate (MMA) in aqueous micellar solutions of poly(methyl methacrylate)-block-poly(methacrylic acid) (PMMA-b-PMA) and polystyrene-block-poly(methacrylic acid) (PS-b-PMA). The resulting polymer forms a layer on the core surface of the original micelles. SANS curves were fitted using an ellipsoidal (PMMA/PMMA/PMA) or spherical (PS/PMMA/PMA) model for the particle core. The particle size (for the presented series of the PMMA/PMMA/PMA particles, the core semiaxes ranged from 87 to 187 A and the axis ratio was about 6) can be finely tuned by variation of monomer concentration. Time-resolved SANS experiments were carried out to describe the growth of the PS/PMMA/PMA particles during polymerization. (orig.)

  19. A Phenomenological Narrative Study: Elementary Charter School Principals' Managerial Roles

    Science.gov (United States)

    Cetinkaya, Ahmet

    2016-01-01

    This study was a phenomenological narrative research investigating the managerial roles of elementary charter school principals. Managerial leadership practices were investigated under three categories personnel management, student management, and finance management. Elementary charter school principals provided positive feedback for having small…

  20. Identifying clinically meaningful symptom response cut-off values on the SANS in predominant negative symptoms.

    Science.gov (United States)

    Levine, Stephen Z; Leucht, Stefan

    2013-04-01

    The treatment and measurement of negative symptoms are currently at issue in schizophrenia, but the clinical meaning of symptom severity and change is unclear. To offer a clinically meaningful interpretation of severity and change scores on the Scale for the Assessment of Negative Symptoms (SANS). Patients were intention-to-treat participants (n=383) in two double-blind randomized placebo-controlled clinical trials that compared amisulpride with placebo for the treatment of predominant negative symptoms. Equipercentile linking was used to examine extrapolation from (a) CGI-S to SANS severity ratings, and (b) CGI-I to SANS percentage change (n=383). Linking was conducted at baseline, 8-14 days, 28-30 days, and 56-60 days of the trials. Across visits, CGI-S ratings of 'not ill' linked to SANS scores of 0-13, and ranged to 'extreme' ratings that linked to SANS scores of 102-105. The relationship between the CGI-S and the SANS severity scores assumed a linear trend (1=0-13, 2=15-56, 3=37-61, 4=49-66, 5=63-75, 6=79-89, 7=102-105). Similarly the relationship between CGI-I ratings and SANS percentage change followed a linear trend. For instance, CGI-I ratings of 'very much improved' were linked to SANS percent changes of -90 to -67, 'much improved' to -50 to -42, and 'minimally improved' to -21 to -13. The current results uniquely contribute to the debate surrounding negative symptoms by providing clinical meaning to SANS severity and change scores and so offer direction regarding clinically meaningful response cut-off scores to guide treatment targets of predominant negative symptoms. Copyright © 2013 Elsevier B.V. All rights reserved.

  1. Characterization of the Drosophila ortholog of the human Usher Syndrome type 1G protein sans.

    Directory of Open Access Journals (Sweden)

    Fabio Demontis

    Full Text Available BACKGROUND: The Usher syndrome (USH is the most frequent deaf-blindness hereditary disease in humans. Deafness is attributed to the disorganization of stereocilia in the inner ear. USH1, the most severe subtype, is associated with mutations in genes encoding myosin VIIa, harmonin, cadherin 23, protocadherin 15, and sans. Myosin VIIa, harmonin, cadherin 23, and protocadherin 15 physically interact in vitro and localize to stereocilia tips in vivo, indicating that they form functional complexes. Sans, in contrast, localizes to vesicle-like structures beneath the apical membrane of stereocilia-displaying hair cells. How mutations in sans result in deafness and blindness is not well understood. Orthologs of myosin VIIa and protocadherin 15 have been identified in Drosophila melanogaster and their genetic analysis has identified essential roles in auditory perception and microvilli morphogenesis, respectively. PRINCIPAL FINDINGS: Here, we have identified and characterized the Drosophila ortholog of human sans. Drosophila Sans is expressed in tubular organs of the embryo, in lens-secreting cone cells of the adult eye, and in microvilli-displaying follicle cells during oogenesis. Sans mutants are viable, fertile, and mutant follicle cells appear to form microvilli, indicating that Sans is dispensable for fly development and microvilli morphogenesis in the follicle epithelium. In follicle cells, Sans protein localizes, similar to its vertebrate ortholog, to intracellular punctate structures, which we have identified as early endosomes associated with the syntaxin Avalanche. CONCLUSIONS: Our work is consistent with an evolutionary conserved function of Sans in vesicle trafficking. Furthermore it provides a significant basis for further understanding of the role of this Usher syndrome ortholog in development and disease.

  2. The aquatic annelid fauna of the San Marcos River headsprings, Hays County, Texas

    Directory of Open Access Journals (Sweden)

    McLean L.D. Worsham

    2016-09-01

    Full Text Available The San Marcos River in Central Texas has been well studied and has been demonstrated to be remarkably specious. Prior to the present study, research on free-living invertebrates in the San Marcos River only dealt with hard bodied taxa with the exception of the report of one gastrotrich, and one subterranean platyhelminth that only incidentally occurs in the head spring outflows. The remainder of the soft-bodied metazoan fauna that inhabit the San Marcos River had never been studied. Our study surveyed the annelid fauna and some other soft-bodied invertebrates of the San Marcos River headsprings. At least four species of Hirudinida, two species of Aphanoneura, one species of Branchiobdellida, and 11 (possibly 13 species of oligochaetous clitellates were collected. Other vermiform taxa collected included at least three species of Turbellaria and one species of Nemertea. We provide the results of the first survey of the aquatic annelid fauna of the San Marcos Springs, along with a dichotomous key to these annelids that includes photos of some representative specimens, and line drawings to elucidate potentially confusing diagnostic structures.

  3. The aquatic annelid fauna of the San Marcos River headsprings, Hays County, Texas

    Science.gov (United States)

    Worsham, McLean L. D.; Gibson, Randy; Huffman, David G.

    2016-01-01

    Abstract The San Marcos River in Central Texas has been well studied and has been demonstrated to be remarkably specious. Prior to the present study, research on free-living invertebrates in the San Marcos River only dealt with hard bodied taxa with the exception of the report of one gastrotrich, and one subterranean platyhelminth that only incidentally occurs in the head spring outflows. The remainder of the soft-bodied metazoan fauna that inhabit the San Marcos River had never been studied. Our study surveyed the annelid fauna and some other soft-bodied invertebrates of the San Marcos River headsprings. At least four species of Hirudinida, two species of Aphanoneura, one species of Branchiobdellida, and 11 (possibly 13) species of oligochaetous clitellates were collected. Other vermiform taxa collected included at least three species of Turbellaria and one species of Nemertea. We provide the results of the first survey of the aquatic annelid fauna of the San Marcos Springs, along with a dichotomous key to these annelids that includes photos of some representative specimens, and line drawings to elucidate potentially confusing diagnostic structures. PMID:27853397

  4. SAFOD Penetrates the San Andreas Fault

    Directory of Open Access Journals (Sweden)

    Mark D. Zoback

    2006-03-01

    Full Text Available SAFOD, the San Andreas Fault Observatory at Depth (Fig. 1, completed an important milestone in July 2005 by drilling through the San Andreas Fault at seismogenic depth. SAFOD is one of three major components of EarthScope, a U.S. National Science Foundation (NSF initiative being conducted in collaboration with the U.S. Geological Survey (USGS. The International Continental Scientific DrillingProgram (ICDP provides engineering and technical support for the project as well as online access to project data and information (http://www.icdp-online.de/sites/sanandreas/news/news1.html. In 2002, the ICDP, the NSF, and the USGS provided funding for a pilot hole project at the SAFOD site. Twenty scientifi c papers summarizing the results of the pilot hole project as well as pre-SAFOD site characterization studies were published in Geophysical Research Letters (Vol.31, Nos. 12 and 15, 2004.

  5. The Sun as a system of elementary particles

    International Nuclear Information System (INIS)

    Kleczek, J.

    1986-01-01

    The paper based on known facts of solar physics-is an attempt to interpret the Sun as a selfgravitating system of about 10/sup 57/ nucleons and electrons. These elementary particles are endowed with strong, electromagnetic, weak and gravitational interactions. Origin of the Sun, its evolution, structure and physiology are consequences of the four interactions. Each structural property, every evolutionary process, any activity phenomenon or event on the Sun can be traced backwards to the four fundamental forces of nature, viz. to interactions of elementary particles

  6. High intensity multi beam design of SANS instrument for Dhruva reactor

    Energy Technology Data Exchange (ETDEWEB)

    Abbas, Sohrab, E-mail: abbas@barc.gov.in; Aswal, V. K. [Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085 (India); Désert, S. [Laboratoire Leon Brillouin, CEA, Saclay, 91191 (France)

    2016-05-23

    A new and versatile design of Small Angle Neutron Scattering (SANS) instrument based on utilization of multi-beam is presented. The multi-pinholes and multi-slits as SANS collimator for medium flux Dhruva rearctor have been proposed and their designs have been validated using McStas simulations. Various instrument configurations to achieve different minimum wave vector transfers in scattering experiments are envisioned. These options enable smooth access to minimum wave vector transfers as low as ~ 6×10{sup −4} Å{sup −1} with a significant improvement in neutron intensity, allowing faster measurements. Such angularly well defined and intense neutron beam will allow faster SANS studies of agglomerates larger than few tens of nm.

  7. San Francisco-Pacifica Coast Landslide Susceptibility 2011

    Data.gov (United States)

    California Natural Resource Agency — The San Francisco-Pacifica Coast grid map was extracted from the California Geological Survey Map Sheet 58 that covers the entire state of California and originally...

  8. 75 FR 59285 - Endangered and Threatened Wildlife and Plants; Permit, San Luis Obispo County, CA

    Science.gov (United States)

    2010-09-27

    ...] Endangered and Threatened Wildlife and Plants; Permit, San Luis Obispo County, CA AGENCY: U.S. Fish and... project in the community of Los Osos, San Luis Obispo County, California. We invite comments from the... community of Los Osos, San Luis Obispo County, California. The parcel is legally described as Assessor...

  9. Developing Elementary Science PCK for Teacher Education: Lessons Learned from a Second Grade Partnership

    Science.gov (United States)

    Bradbury, Leslie U.; Wilson, Rachel E.; Brookshire, Laura E.

    2017-06-01

    In this self-study, two science educators partnered with two elementary teachers to plan, implement, and reflect on a unit taught in second grade classrooms that integrated science and language arts. The researchers hoped to increase their pedagogical content knowledge (PCK) for elementary science teaching so that they might use their experiences working in an elementary context to modify their practices in their elementary science method instruction. The research question guiding the study was: What aspects of our PCK for elementary science teaching do we as science educators develop by co-planning, co-teaching, and reflecting with second grade teachers? Data include transcripts of planning meetings, oral reflections about the experience, and videos of the unit being enacted. Findings indicate that managing resources for science teaching, organizing students for science learning, and reflecting on science teaching were themes prevalent in the data. These themes were linked to the model of PCK developed by Park and Oliver (Research in Science Education, 38, 261-284, 2008) and demonstrate that we developed PCK for elementary science teaching in several areas. In our discussion, we include several proposed changes for our elementary science methods course based on the outcomes of the study.

  10. Reconceptualizing Elementary Teacher Preparation: A Case for Informal Science Education

    Science.gov (United States)

    Avraamidou, Lucy

    2015-01-01

    The purpose of this case study was to explore the ways in which 3 different informal science experiences in the context of an elementary methods course influenced a group of prospective elementary teachers' ideas about science teaching and learning as well as their understandings about the role of informal science environments to teaching and…

  11. 41 CFR 101-6.205-3 - Elementary and secondary schools.

    Science.gov (United States)

    2010-07-01

    ... schools. 101-6.205-3 Section 101-6.205-3 Public Contracts and Property Management Federal Property...-Nondiscrimination in Programs Receiving Federal Financial Assistance § 101-6.205-3 Elementary and secondary schools. The requirements of §§ 101-6.205-1 and 101-6.205-2 with respect to any elementary or secondary school...

  12. San Francisco Bay Area Baseline Trash Loading Summary Results, San Francisco Bay Area CA, 2012, US EPA Region 9

    Data.gov (United States)

    U.S. Environmental Protection Agency — The San Francisco Bay Area stormwater permit sets trash control guidelines for discharges through the storm drain system. The permit covers Alameda, Contra Costa,...

  13. Mathematics, Language, and Learning: A Longitudinal Study of Elementary Teachers and Their Mathematics Teaching Practices

    OpenAIRE

    Yeh, Cathery

    2016-01-01

    Elementary school mathematics has gained increased attention in the last few decades. A growing field of research has studied the programmatic design and development of elementary mathematics teaching in teacher education, however, few studies have examined longitudinally the mathematics teaching of novice elementary teachers. Existing longitudinal studies on elementary mathematics teaching have generally focused on the effects of teacher preparation on their beginning practices and have exam...

  14. Zemětřesná aktivita na zlomu San Andreas

    OpenAIRE

    Voroňáková, Jana

    2011-01-01

    SUMMARY: This work deals with the San Andreas fault as a tectonically active area. It includes basic information about the fracture, its origins and history. The work shows, as scientists are now trying to combat the risk of impending earthquakes. Project of San Andreas Fault Observatory at Depth and individual predictions of the next earthquake rupture are described.

  15. An Exploration of Elementary School Counselors' Perceptions of Students' Exposure to Violent Video Games

    Science.gov (United States)

    Woody, Tammy Lynn

    2010-01-01

    This study explored elementary school counselors' perceptions of working with students exposed to violent video games. Certified elementary school counselors participated in both an online survey and individual interviews, revealing their observations regarding elementary school children and the phenomenon of gaming. An emphasis was placed on…

  16. Prioritizing Elementary School Writing Instruction: Cultivating Middle School Readiness for Students with Learning Disabilities

    Science.gov (United States)

    Ciullo, Stephen; Mason, Linda

    2017-01-01

    Helping elementary students with learning disabilities (LD) prepare for the rigor of middle school writing is an instructional priority. Fortunately, several standards-based skills in upper elementary school and middle school overlap. Teachers in upper elementary grades, specifically fourth and fifth grades, have the opportunity to provide…

  17. Chlorinated hydrocarbon pesticides and polychlorinated biphenyls in sediment cores from San Francisco Bay

    Science.gov (United States)

    Venkatesan, M.I.; De Leon, R. P.; VanGeen, A.; Luoma, S.N.

    1999-01-01

    Sediment cores of known chronology from Richardson and San Pablo Bays in San Francisco Bay, CA, were analyzed for a suite of chlorinated hydrocarbon pesticides and polychlorinated biphenyls to reconstruct a historic record of inputs. Total DDTs (DDT = 2,4'- and 4,4'-dichlorodiphenyltrichloroethane and the metabolites, 2,4'- and 4,4'-DDE, -DDD) range in concentration from 4-21 ng/g and constitute a major fraction (> 84%) of the total pesticides in the top 70 cm of Richardson Bay sediment. A subsurface maximum corresponds to a peak deposition date of 1969-1974. The first measurable DDT levels are found in sediment deposited in the late 1930's. The higher DDT inventory in the San Pablo relative to the Richardson Bay core probably reflects the greater proximity of San Pablo Bay to agricultural activities in the watershed of the Sacramento and San Joaquin rivers. Total polychlorinated biphenyls (PCBs) occur at comparable levels in the two Bays (inventories in San Pablo Bay are about a factor of four higher in the last four decades than in Richardson Bay, suggesting a distribution of inputs not as strongly weighed towards the upper reaches of the estuary as DDTs. The shallower subsurface maximum in PCBs compared to DDT in the San Pablo Bay core is consistent with the imposition of drastic source control measures four these constituents in 1970 and 1977 respectively. The observed decline in DDT and PCB levels towards the surface of both cores is consistent with a dramatic drop in the input of these pollutants once the effect of sediment resuspension and mixing is taken into account.

  18. Topics in elementary particle physics

    International Nuclear Information System (INIS)

    Dugan, M.J.

    1985-01-01

    Topics in elementary particle physics are discussed. Models with N = 2 supersymmetry are constructed. The CP violation properties of a class of N = 1 supergravity models are analyzed. The structure of a composite Higgs model is investigated. The implications of a 17 keV neutrino are considered

  19. Characterization of aerosols in the Metropolitan Area of San Jose

    International Nuclear Information System (INIS)

    Mejias Perez, J.A.

    1997-07-01

    The objective of the present study, was to elaborate a profile of the contamination by private matter and to characterize the aerosols collected in the Metropolitan Area of San Jose (Costa Rica). For that, a campaign of sampling was carried out in three points of the city of San Jose, differentiated by there degree of activity: Center of San Jose (Central Station of Firemen), San Isidro of Coronado -Canton of Vasquez of Coronado- (Municipality) and Escazu (Municipality). Such campaign was carried out from April 4 to July 4, 1996 (transition summer-winter), and in two periods of time of 8 hours: 8 a.m. to 4 p.m. and of 8 p.m. to 4 a.m. The aerosols were collected utilizing Gent Pm-10 samplers, in filters of polycarbonate of 0,4 μm and 8 μm in cascade, with a flow average of 15 L/min., and it determined the composition average of the present aerosols. The concentration of the majority of the anions were obtained by means of ionic chromatography of high resolution, and the main cations by spectrophotometry of atomic absorption with electro thermic atomization. The space-temporary variations of the concentrations were evaluated and their correlation with the meteorologic variable. (S. Grainger) [es

  20. String model of elementary particles

    International Nuclear Information System (INIS)

    Kikkawa, Keiji

    1975-01-01

    Recent development of the models of elementary particles is described. The principal features of elementary particle physics can be expressed by quark model, mass spectrum, the Regge behavior of scattering amplitude, and duality. Venezians showed in 1968 that the B function can express these features. From the analysis of mass spectrum, the string model was introduced. The quantization of the string is performed with the same procedure as the ordinary quantum mechanics. The motion of the string is determined by the Nambu-Goto action integral, and the Schroedinger equation is obtained. Mass spectrum from the string model was same as that from the duality model such as Veneziano model. The interaction between strings can be introduced, and the Lagrangian can be formulated. The relation between the string model and the duality model has been studied. The string model is the first theory of non-local field, and the further development is attractive. The relation between this model and the quark model is still not clear. (Kato, T.)

  1. Elementary Particles A New Approach

    Directory of Open Access Journals (Sweden)

    FranciscoMartnezFlores.

    2015-07-01

    Full Text Available ABSTRACT It is shown the inexistence of neutrinos to define precisely the concept of relativistics mass under this scheme to elementarys particles as electron and interactions particles like photons correspond an electromagnetic and virtual mass. Nucleons protons and neutrons have real or inertial mass for being composite particles since inertia needs structure it is provided by an interactive network originated by strong and weak forces. This mass is building up atoms and all the material world under Classical Physics and Chemistrys laws.These actual masses may be considered as electromagnetic and virtual one thanks to its charge in order to establish the high energies level needed to obtain all particles physics elementary or not which are governed by the laws of Quantum Physics. With all this one may set up amore reasonable and understandable new Standard Model which being projected into Cosmological Model can get rid of some inconsistencies and concepts difficult to be admitted.

  2. New record of Boa constrictor occidentalis Philippi, 1873 (Serpentes: Boidae) in San Juan province, Argentina

    OpenAIRE

    Martínez, Tomás; Rodriguez Muñoz, Melina; Galdeano, Ana; Acosta, Juan

    2015-01-01

    We document the first record of Boa constrictor in Valle Fértil department, San Juan province, Argentina. The specimen was collected and deposited in the herpetological collection of the Department of Biology, Universidad Nacional San Juan. This record extends the known distribution for this species in San Juan province by 105 km.

  3. Choto-san in the treatment of vascular dementia: a double-blind, placebo-controlled study.

    Science.gov (United States)

    Terasawa, K; Shimada, Y; Kita, T; Yamamoto, T; Tosa, H; Tanaka, N; Saito, Y; Kanaki, E; Goto, S; Mizushima, N; Fujioka, M; Takase, S; Seki, H; Kimura, I; Ogawa, T; Nakamura, S; Araki, G; Maruyama, I; Maruyama, Y; Takaori, S

    1997-03-01

    In an earlier placebo-controlled study, we demonstrated that a kampo (Japanese herbal) medicine called Choto-san (Diao-Teng-San in Chinese) was effective in treating vascular dementia. To evaluate its efficacy using more objective criteria, we carried out a multi-center, double-blind study of Choto-san extract (7.5 g/day) and a placebo, each given three times a day for 12 weeks to patients suffering from this condition. The study enrolled and analyzed 139 patients, 50 males and 89 females, with a mean age of 76.6 years. Choto-san was statistically superior to the placebo in global improvement rating, utility rating, global improvement rating of subjective symptoms, global improvement rating of psychiatric symptoms and global improvement rating of disturbance in daily living activities. Such items as spontaneity of conversation, lack of facial expression, decline in simple mathematical ability, global intellectual ability, nocturnal delirium, sleep disturbance, hallucination or delusion, and putting on and taking off clothes were significantly improved at one or more evaluation points in those taking Choto-san compared to those taking the placebo. Furthermore, the change in revised version of Hasegawa's dementia scale from the beginning point in Choto-san group was tended to be higher than that in placebo group with no statistical significance. These results suggest that Choto-san is effective in the treatment of vascular dementia. Copyright © 1997 Gustav Fischer Verlag. Published by Elsevier GmbH.. All rights reserved.

  4. Phosphorylation of the Usher syndrome 1G protein SANS controls Magi2-mediated endocytosis.

    Science.gov (United States)

    Bauß, Katharina; Knapp, Barbara; Jores, Pia; Roepman, Ronald; Kremer, Hannie; Wijk, Erwin V; Märker, Tina; Wolfrum, Uwe

    2014-08-01

    The human Usher syndrome (USH) is a complex ciliopathy with at least 12 chromosomal loci assigned to three clinical subtypes, USH1-3. The heterogeneous USH proteins are organized into protein networks. Here, we identified Magi2 (membrane-associated guanylate kinase inverted-2) as a new component of the USH protein interactome, binding to the multifunctional scaffold protein SANS (USH1G). We showed that the SANS-Magi2 complex assembly is regulated by the phosphorylation of an internal PDZ-binding motif in the sterile alpha motif domain of SANS by the protein kinase CK2. We affirmed Magi2's role in receptor-mediated, clathrin-dependent endocytosis and showed that phosphorylated SANS tightly regulates Magi2-mediated endocytosis. Specific depletions by RNAi revealed that SANS and Magi2-mediated endocytosis regulates aspects of ciliogenesis. Furthermore, we demonstrated the localization of the SANS-Magi2 complex in the periciliary membrane complex facing the ciliary pocket of retinal photoreceptor cells in situ. Our data suggest that endocytotic processes may not only contribute to photoreceptor cell homeostasis but also counterbalance the periciliary membrane delivery accompanying the exocytosis processes for the cargo vesicle delivery. In USH1G patients, mutations in SANS eliminate Magi2 binding and thereby deregulate endocytosis, lead to defective ciliary transport modules and ultimately disrupt photoreceptor cell function inducing retinal degeneration. © The Author 2014. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  5. 76 FR 45212 - Revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution...

    Science.gov (United States)

    2011-07-28

    ... the California State Implementation Plan, San Joaquin Valley Unified Air Pollution Control District... proposing to approve San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD) Rule 3170... the environment. San Joaquin Valley Unified Air Pollution Control District SJVUAPCD is an extreme...

  6. First experiences with large SAN storage and Linux

    International Nuclear Information System (INIS)

    Wezel, Jos van; Marten, Holger; Verstege, Bernhard; Jaeger, Axel

    2004-01-01

    The use of a storage area network (SAN) with Linux opens possibilities for scalable and affordable large data storage and poses a new challenge for cluster computing. The GridKa center uses a commercial parallel file system to create a highly available high-speed data storage using a combination of Fibre Channel (SAN) and Ethernet (LAN) to optimize between data throughput and costs. This article describes the design, implementation and optimizations of the GridKa storage solution which will offer over 400 TB online storage for 600 nodes. Presented are some throughput measurements of one of the largest Linux-based parallel storage systems in the world

  7. READING PERFORMANCE OF ELEMENTARY STUDENT TEACHERS IN A DEVELOPING INSTITUTION.

    Science.gov (United States)

    ADAMS, EFFIE KAYE

    A STUDY WAS CONDUCTED AT BISHOP COLLEGE, DALLAS, TEXAS, TO EXAMINE THE READING NEEDS OF PROSPECTIVE ELEMENTARY TEACHERS. SCORES ON THE NELSON DENNY READING TESTS, ADVANCED FORM A, ON THE OTIS QUICK SCORING TESTS OF MENTAL ABILITY, GAMMA FORM BM, AND GRADE POINT AVERAGES COVERING 4 YEARS OF COLLEGE WORK WERE ANALYZED FOR 29 NEGRO ELEMENTARY STUDENT…

  8. Medicinal use of plants by the peasant community of San Jacinto, northern Colombia Medicinal use of plants by the peasant community of San Jacinto, northern Colombia

    Directory of Open Access Journals (Sweden)

    Bonzani Renée M.

    1999-11-01

    Full Text Available I studied the medicinal use of plants by the peasant community of the town of San Jacinto, located in the savanna of Bolívar, northern Colombia. Fifty-five families, 138 genera, and 118 species were scientifically identified from 249 specimens collected of the modern-day vegetation of San Jacinto. From these, 198 uses were recorded for 190 (76% of the specimens. The 54 uses recorded for human medicine (27% and the five uses recorded for animal medicine (2% are discussed. Vernacular names, parts used, method of preparation, and medicinal uses are listed.Se presenta un estudio etnobotánico de la comunidad campesina del pueblo de San Jacinto, localizado en las sabanas de Bolívar, norte de Colombia. Se identificaron científicamente 55 familias, 138 géneros, y 118 especies con base en 249 especímenes recolectados de la vegetación de San Jacinto. De esos, se establecieron 198 usos para 190 (76% especímenes. Se presentan 54 usos para medicina humana (27% y cinco usos para medicina animal (2%. Se listan nombres vernáculos, partes usadas, método de preparación, y usos medicinales.

  9. Irregular recurrence of large earthquakes along the san andreas fault: evidence from trees.

    Science.gov (United States)

    Jacoby, G C; Sheppard, P R; Sieh, K E

    1988-07-08

    Old trees growing along the San Andreas fault near Wrightwood, California, record in their annual ring-width patterns the effects of a major earthquake in the fall or winter of 1812 to 1813. Paleoseismic data and historical information indicate that this event was the "San Juan Capistrano" earthquake of 8 December 1812, with a magnitude of 7.5. The discovery that at least 12 kilometers of the Mojave segment of the San Andreas fault ruptured in 1812, only 44 years before the great January 1857 rupture, demonstrates that intervals between large earthquakes on this part of the fault are highly variable. This variability increases the uncertainty of forecasting destructive earthquakes on the basis of past behavior and accentuates the need for a more fundamental knowledge of San Andreas fault dynamics.

  10. Postseismic relaxation along the San Andreas fault at Parkfield from continuous seismological observations.

    Science.gov (United States)

    Brenguier, F; Campillo, M; Hadziioannou, C; Shapiro, N M; Nadeau, R M; Larose, E

    2008-09-12

    Seismic velocity changes and nonvolcanic tremor activity in the Parkfield area in California reveal that large earthquakes induce long-term perturbations of crustal properties in the San Andreas fault zone. The 2003 San Simeon and 2004 Parkfield earthquakes both reduced seismic velocities that were measured from correlations of the ambient seismic noise and induced an increased nonvolcanic tremor activity along the San Andreas fault. After the Parkfield earthquake, velocity reduction and nonvolcanic tremor activity remained elevated for more than 3 years and decayed over time, similarly to afterslip derived from GPS (Global Positioning System) measurements. These observations suggest that the seismic velocity changes are related to co-seismic damage in the shallow layers and to deep co-seismic stress change and postseismic stress relaxation within the San Andreas fault zone.

  11. The origin of mass elementary particles and fundamental symmetries

    CERN Document Server

    Iliopoulos, John

    2017-01-01

    The discovery of a new elementary particle at the Large Hadron Collider at CERN in 2012 made headlines in world media. Since we already know of a large number of elementary particles, why did this latest discovery generate so much excitement? This small book reveals that this particle provides the key to understanding one of the most extraordinary phenomena which occurred in the early Universe. It introduces the mechanism that made possible, within tiny fractions of a second after the Big Bang, the generation of massive particles. The Origin of Mass is a guided tour of cosmic evolution, from the Big Bang to the elementary particles we study in our accelerators today. The guiding principle of this book is a concept of symmetry which, in a profound and fascinating way, seems to determine the structure of the Universe.

  12. San Francisco Bay Interferometric Bathymetry: Area B

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — High resolution sonar data were collected over ultra-shallow areas of the San Francisco Bay estuary system. Bathymetric and acoustic backscatter data were collected...

  13. 78 FR 48046 - Safety Zone; Kuoni Destination Management Fireworks; San Diego, CA

    Science.gov (United States)

    2013-08-07

    ...-AA00 Safety Zone; Kuoni Destination Management Fireworks; San Diego, CA AGENCY: Coast Guard, DHS... waters of the San Diego Bay in support of the Kuoni Destination Management Fireworks Display on August 6... Guard's ability to protect the public from the potential hazards associated with fireworks displays...

  14. Cuisine Preference of Local Tourists in San Juan, Batangas, Philippines

    OpenAIRE

    RYENE SELLINE B. KALALO; ANGELICA LYNTTE A. CABLAO; MARICRISS P. CABATAY; CHARISSA P. MANTAL; RHONALYN T. MANALO; SEVILLA S. FELICEN

    2014-01-01

    This study aimed to determine the cuisine preference of the local tourist in San Juan, Batangas. More specifically, it aimed to describe the demographic profile of local tourist; to identify the preferred cuisine by different restaurants; to determine the significant difference when group according to demographic profile; and to determine the cuisine preference of local tourists in San Juan, Batangas. The research design used the descriptive method because it is the most appropria...

  15. A SANS study of capillary condensation in porous media

    International Nuclear Information System (INIS)

    Lin, M.; Glinka, C.; Sinna, S.; Huang, J.; Abeles, B.; Johnson, J.; Drake, J.

    1990-01-01

    The authors use small angle neutron scattering (SANS) to study the microstructure of porous Vycor glass and the capillary condensation of fluids in the medium. Using a chord distribution model, they can predict the structure factor measured by SANS. Excellent agreement with the data is obtained. The fitted parameters characterize quantitatively the porous structure before and during the process of condensation, and are in good agreement with isotherm measurements. However, at the latest stages of the process, when all the pores are nearly filled, the model can no longer describe the system

  16. A narrative study of novice elementary teachers' perceptions of science instruction

    Science.gov (United States)

    Harrell, Roberta

    It is hoped that, once implemented, the Next Generation Science Standards (NGSS) will engage students more deeply in science learning and build science knowledge sequentially beginning in Kindergarten (NRC, 2013). Early instruction is encouraged but must be delivered by qualified elementary teachers who have both the science content knowledge and the necessary instructional skills to teach science effectively to young children (Ejiwale, 2012, Spencer, Vogel, 2009, Walker, 2011). The purpose of this research study is to gain insight into novice elementary teachers' perceptions of science instruction. This research suggests that infusion of constructivist teaching in the elementary classroom is beneficial to the teacher's instruction of science concepts to elementary students. Constructivism is theory that learning is centered on the learner constructing new ideas or concepts built upon their current/past knowledge (Bruner, 1966). Based on this theory, it is recommended that the instructor should try to encourage students to discover principles independently; essentially the instructor presents the problem and lets students go (Good & Brophy, 2004). Discovery learning, hands-on, experimental, collaborative, and project-based learning are all approaches that use constructivist principles. The NGSS are based on constructivist principles. This narrative study provides insight into novice elementary teachers' perceptions of science instruction considered through the lens of Constructivist Theory (Bruner, 1960).

  17. Robotics Literacy Captivates Elementary Students.

    Science.gov (United States)

    Friedman, Madeleine

    1986-01-01

    Describes a robotics literacy course offered for elementary age children at Broward Community College (Florida) and discusses the motivation for offering such a course, the course philosophy and objectives, and participant reactions. A sampling of robots and robotics devices and some of their teaching applications are included. (MBR)

  18. Cooperative Learning in Elementary Schools

    Science.gov (United States)

    Slavin, Robert E.

    2015-01-01

    Cooperative learning refers to instructional methods in which students work in small groups to help each other learn. Although cooperative learning methods are used for different age groups, they are particularly popular in elementary (primary) schools. This article discusses methods and theoretical perspectives on cooperative learning for the…

  19. Marketing School Music: It's Elementary.

    Science.gov (United States)

    Anderson, Jill Kuespert

    1992-01-01

    Explores methods of promoting elementary school music programs. Suggests inviting visitors to the class as a means of increasing awareness of school music. Recommends sending press releases to school newsletters and local newspapers. Reminds teachers to make use of educational access channels on area cable television systems. (SG)

  20. The school nutrition program's role in weight management of 4th grade elementary students

    Science.gov (United States)

    We are attempting to uncover the school nutrition program's role in weight management of 4th grade elementary students. Data was collected within a time frame for the food frequency questionnaire (FFQ) set at two months at the WT Cheney Elementary School and South Wood Elementary for 4th grade stud...

  1. In-Service Elementary Teachers' Understanding of Magnetism Concepts before and after Non-Traditional Instruction

    Science.gov (United States)

    Atwood, Ronald K.; Christopher, John E.; Combs, Rebecca K.; Roland, Elizabeth E.

    2010-01-01

    Magnetism is a topic frequently studied in elementary schools. Since magnetism is a popular topic and is included in national science education standards, it might be assumed that elementary teachers have a good understanding of this topic and that elementary students develop a good understanding of fundamental magnetism concepts. Unfortunately,…

  2. 77 FR 48532 - Notice of Intent To Repatriate Cultural Items: San Diego State University, San Diego, CA

    Science.gov (United States)

    2012-08-14

    ... Management Program, in consultation with the appropriate Indian tribe, has determined that the cultural items... itself to be culturally affiliated with the cultural items may contact San Diego State University Archaeology Collections Management Program. DATES: Representatives of any Indian tribe that believes it has a...

  3. Caracterización de las principales pesquerías del golfo San Jorge Patagonia, Argentina Characterization of the main fisheries in San Jorge Gulf, Patagonia, Argentina

    Directory of Open Access Journals (Sweden)

    María Eva Góngora

    2012-03-01

    Full Text Available En el golfo San Jorge se desarrollan varias actividades económicas de relevancia, entre ellas dos pesquerías industriales: la pesquería de merluza común (Merluccius hubbsi Marini, 1933 y la pesquería de langostino patagónico (Pleoticus muelleri Bate, 1888, ambas se solapan espacial y temporalmente. En la pesquería de merluza del golfo San Jorge opera una flota fresquera de altura, compuesta por unas 20 embarcaciones, y una flota costera, compuesta por unas 30 embarcaciones. En esta pesquería se pesca alrededor del 10% de lo capturado en el stock sur de merluza. En la pesquería de langostino del golfo San Jorge opera una flota congeladora tangonera compuesta por 80 embarcaciones, responsable de más del 75% de los desembarques de langostino realizados en la República Argentina. Ambas pesquerías tienen como principal problema la captura incidental de merluza, en una de sus principales áreas de cría. En el presente trabajo se describe el manejo actual en las pesquerías del golfo San Jorge, el cual consiste principalmente en cierres espaciales y temporales para la pesca de langostino, y zonificaciones por estrato de flota para la merluza. En ninguna de las dos pesquerías descriptas se han tomado medidas que reduzcan eficazmente la captura incidental.In San Jorge Gulf, several important economic activities are developed, including two industrial fisheries: hake (Merluccius hubbsi Marini, 1933 and Argentine red shrimp (Pleoticus muelleri Bate, 1888. Both overlap spatially and temporally. The San Jorge Gulf hake fishery consists of a high-seas ice trawler fleet (n = 20 fishing vessels and a coastal fleet (n = 30 fishing vessels. These fisheries capture about 10% of the catch of the southern hake stock. The Argentine red shrimp fishery consists of a double-beam trawler fleet with 80 freezer vessels, responsible for more than 75% of shrimp landings in Argentina. The main problem of both fisheries is the bycatch of hake in one of its

  4. Estudio constructivo y análisis de la Sacristía de la iglesia de San Miguel y San Sebastián

    OpenAIRE

    RUBIO MUÑOZ, RUBÉN

    2017-01-01

    La iglesia de San Miguel y San Sebastián, de Cardona y Pertusa, es un edificio erigido en el siglo XVIII, con anterioridad a la creación de la Academia de Bellas Artes, en que se produce la transición de la arquitectura y los oficios relacionados con la construcción. La Sacristía de la citada iglesia, de planta de cruz griega y con cúpula centra, es uno de los mejores ejemplos de la arquitectura del periodo y que, por desgracia, poco conocida. En el TFG se pretende realizar un exhaustivo l...

  5. San Rafael mining and fabrication complex today

    International Nuclear Information System (INIS)

    Navarra, Pablo; Aldebert, Sergio R.

    2005-01-01

    In Mendoza province, 35 km West San Rafael city, is located a CNEA installation for uranium ore extraction and concentration: the San Rafael Mining and Fabrication Complex. By the middle of the nineties, as a consequence of the very low prices of uranium concentrate in the international market and of the high internal production costs, uranium extraction was stopped. To day, the international price of the concentrate had a very important increase and the Government has decided the completion of the Atucha II Nuclear Power Station construction. Moreover, studies have been started for new nuclear power plants. In such circumstances the reactivation of the Complex will make sure the uranium supply for our nuclear power stations, contributing to the improvement of the energy generation mix in our country. (author) [es

  6. Professional Learning for Cultural Mathematics in Papua New Guinea's Elementary Schools

    Science.gov (United States)

    Owens, Kay; Edmonds-Wathen, Cris; Kravia, Geori; Sakopa, Priscilla

    2014-01-01

    A design of principles for teacher professional learning was developed to improve the teaching of "Cultural Mathematics" in elementary schools in Papua New Guinea. The design's appropriateness for PNG elementary schools is the focus of the research implemented through week-long workshops using technology enhancement. Implementation has…

  7. 49 CFR 37.27 - Transportation for elementary and secondary education systems.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 1 2010-10-01 2010-10-01 false Transportation for elementary and secondary education systems. 37.27 Section 37.27 Transportation Office of the Secretary of Transportation... elementary and secondary education systems. (a) The requirements of this part do not apply to public school...

  8. CONSULT-I Reading. South Avondale Elementary School, Cincinnati Project. Final Report.

    Science.gov (United States)

    Newman, Anabel; And Others

    A study examined the effectiveness of the second year of implementation of the CONSULT-I program, which uses artificial intelligence with statistical pattern recognition in constructing a diagnosis and recommending treatment of reading difficulties. Five elementary classroom teachers, two ESEA (Elementary and Secondary Education Act) teachers, and…

  9. Elementary Teachers' Experiences and Perceptions of Departmentalized Instruction: A Case Study

    Science.gov (United States)

    Strohl, Alecia; Schmertzing, Lorraine; Schmertzing, Richard

    2014-01-01

    This case study investigated elementary teachers' experiences and perceptions during a trial year of departmentalized instruction in a rural south Georgia elementary school. To inform their decision about whole-school departmentalization for the future, school administrators appointed twelve first through third grade teachers to pilot the…

  10. 'Thoroughly Good Football': Teachers and the Origins of Elementary School Football.

    Science.gov (United States)

    Kerrigan, Colm

    2000-01-01

    Discusses the origins of elementary school soccer (football), addressing topics such as: the role of public schools in organized soccer, soccer in elementary schools, the first schoolboy soccer association, South London Schools' Football Association, the London Schools' Football Association, and the English Schools' Football Association. (CMK)

  11. Interseismic strain accumulation and the earthquake potential on the southern San Andreas fault system.

    Science.gov (United States)

    Fialko, Yuri

    2006-06-22

    The San Andreas fault in California is a mature continental transform fault that accommodates a significant fraction of motion between the North American and Pacific plates. The two most recent great earthquakes on this fault ruptured its northern and central sections in 1906 and 1857, respectively. The southern section of the fault, however, has not produced a great earthquake in historic times (for at least 250 years). Assuming the average slip rate of a few centimetres per year, typical of the rest of the San Andreas fault, the minimum amount of slip deficit accrued on the southern section is of the order of 7-10 metres, comparable to the maximum co-seismic offset ever documented on the fault. Here I present high-resolution measurements of interseismic deformation across the southern San Andreas fault system using a well-populated catalogue of space-borne synthetic aperture radar data. The data reveal a nearly equal partitioning of deformation between the southern San Andreas and San Jacinto faults, with a pronounced asymmetry in strain accumulation with respect to the geologically mapped fault traces. The observed strain rates confirm that the southern section of the San Andreas fault may be approaching the end of the interseismic phase of the earthquake cycle.

  12. Morbilidad y mortalidad en el servicio de hospitalización del Departamento de enfermedades infecciosas, tropicales y dermatológicas del Hospital Nacional Cayetano Heredia entre 1990 - 2000

    Directory of Open Access Journals (Sweden)

    Carlos Zamudio Fuertes

    2004-10-01

    Full Text Available Objetivo: Describir la demografía, e identificar la morbilidad más frecuente y las tasas de mortalidad de la unidad de enfermedades infecciosas en un hospital de referencia, público y docente, localizado en el norte de Lima-Perú. Material y métodos: Se realizó un estudio retrospectivo donde se incluyeron todas las hospitalizaciones del Departamento de Enfermedades Infecciosas, Tropicales y Dermatológicas del Hospital Nacional Cayetano Heredia, entre enero de 1990 y diciembre del 2000. Se registraron los datos demográficos, las fechas de ingreso y de alta, todos los diagnósticos, y la condición al alta. Los diagnósticos fueron codificados según la Novena Revisión de la Clasificación Internacional de Enfermedades (CIE-9. Resultados: De 7192 hospitalizaciones registradas, 4603 (64% fueron de pacientes varones, la edad media fue 39.2 ±19 años. Las hospitalizaciones prácticamente se duplicaron (de 440 a 817 durante el periodo en estudio. La edad media aumentó de 36.6 ±16.1 años a 41 ± 19.9 años, las hospitalizaciones de pacientes geriátricos aumentó de 11.8% a 21.3%, y la relación VIH/ no VIH aumentó de 0.07 a 0.25. El índice de rotación de cama aumentó de 12.2 a 22.7. Los diagnósticos más frecuentes fueron: VIH 1209 (10.2%, tuberculosis 1201 (10.1%, celulitis 653 (5.5% y neumonía 651 (5.5%. La mortalidad hospitalaria durante el estudio fue de 8.1%, manteniéndose en promedio constante. Conclusiones: Se observó un aumento en el número de hospitalizaciones, especialmente debido a pacientes geriátricos, sin encontrarse cambios en las tasas de mortalidad. Tuberculosis y VIH fueron los diagnósticos más frecuentes en este estudio. (Rev Med Hered 2004; 15:181-187.

  13. Talc-bearing serpentinite and the creeping section of the San Andreas fault.

    Science.gov (United States)

    Moore, Diane E; Rymer, Michael J

    2007-08-16

    The section of the San Andreas fault located between Cholame Valley and San Juan Bautista in central California creeps at a rate as high as 28 mm yr(-1) (ref. 1), and it is also the segment that yields the best evidence for being a weak fault embedded in a strong crust. Serpentinized ultramafic rocks have been associated with creeping faults in central and northern California, and serpentinite is commonly invoked as the cause of the creep and the low strength of this section of the San Andreas fault. However, the frictional strengths of serpentine minerals are too high to satisfy the limitations on fault strength, and these minerals also have the potential for unstable slip under some conditions. Here we report the discovery of talc in cuttings of serpentinite collected from the probable active trace of the San Andreas fault that was intersected during drilling of the San Andreas Fault Observatory at Depth (SAFOD) main hole in 2005. We infer that the talc is forming as a result of the reaction of serpentine minerals with silica-saturated hydrothermal fluids that migrate up the fault zone, and the talc commonly occurs in sheared serpentinite. This discovery is significant, as the frictional strength of talc at elevated temperatures is sufficiently low to meet the constraints on the shear strength of the fault, and its inherently stable sliding behaviour is consistent with fault creep. Talc may therefore provide the connection between serpentinite and creep in the San Andreas fault, if shear at depth can become localized along a talc-rich principal-slip surface within serpentinite entrained in the fault zone.

  14. SANS and TEM studies of carbide precipitation and creep damage in type 304 stainless steel

    International Nuclear Information System (INIS)

    Yoo, M.H.; Ogle, J.C.; Schneibel, J.H.; Swindeman, R.W.

    1984-01-01

    Small-angle neutron scattering (SANS) and transmission electron microscopy (TEM) studies were performed to characterize the carbide (M 23 C 6 ) precipitation and creep damage induced in type 304 stainless steel in the primary creep stage. The size distribution of matrix carbides evaluated from SANS analyses was consistent with TEM data, and the expected accelerated kinetics of precipitation under applied stress was confirmed. Additional SANS measurements after the postcreep solution annealing were made in order to differentiate cavities from the carbides. Potential advantages and difficulties associated with characterization of creep-induced cavitation by the SANS techniques are discussed

  15. Preservice Elementary Teachers' Ideas About Scientific Practices

    Science.gov (United States)

    Ricketts, Amy

    2014-10-01

    With the goal of producing scientifically literate citizens who are able to make informed decisions and reason critically when science intersects with their everyday lives, the National Research Council (NRC) has produced two recent documents that call for a new approach to K-12 science education that is based on scientific practices, crosscutting concepts, and disciplinary core ideas. These documents will potentially influence future state standards and K-12 curricula. Teachers will need support in order to teach science using a practices based approach, particularly if they do not have strong science backgrounds, which is often the case with elementary teachers. This study investigates one cohort (n = 19) of preservice elementary teachers' ideas about scientific practices, as developed in a one-semester elementary science teaching methods course. The course focused on eight particular scientific practices, as defined by the National Research Council's A Framework for K-12 Science Education: Practices, Crosscutting Concepts, and Core Ideas (2012). Participants' written reflections, lesson plans and annotated teaching videos were analyzed in fine detail to better understand their ideas about what it means to engage in each of the practices. The findings suggest that preservice elementary teachers hold promising ideas about scientific practices (such as an emphasis on argumentation and communication between scientists, critical thinking, and answering and asking questions as the goal of science) as well as problematic ideas (including confusion over the purpose of modeling and the process of analysis, and conflating argumentation and explanation building). These results highlight the strengths and limitations of using the Framework (NRC 2012) as an instructional text and the difficulties of differentiating between preservice teachers' content knowledge about doing the practices and their pedagogical knowledge about teaching the practices.

  16. Sheaves in Elementary Mathematics: The case of positive integer numbers

    OpenAIRE

    Luna-Torres, Joaquin

    2015-01-01

    We aim to use the concept of sheaf to establish a link between certain aspects of the set of positive integers numbers, a topic corresponding to the elementary mathematics, and some fundamental ideas of contemporary mathematics. We hope that this type of approach helps the school students to restate some problems of elementary mathematics in an environment deeper and suitable for its study.

  17. Bartonelosis aguda en niños: Estudio de 32 casos en el Instituto Especializado de Salud del Niño y el Hospital Nacional Cayetano Heredia (Período 1993-2003.

    Directory of Open Access Journals (Sweden)

    Judith Patricia BREÑA CHÁVEZ

    2006-07-01

    Full Text Available Objetivos: Determinar las características epidemiológicas, clínicas, datos de laboratorio y tratamiento de la Bartonelosis aguda en niños. Materiales y métodos: Se revisaron las historias clínicas de 32 niños con Bartonelosis aguda, internados en el Hospital Nacional Cayetano Heredia y en el Instituto Especializado de Salud del Niño entre 1993 y 2003. Resultados: La edad promedio fue 9,8 años, 72% fueron varones, los lugares de exposición probable fueron principalmente las zonas endémicas de los valles interandinos de Perú, pero hubieron pacientes procedentes de zonas no endémicas de la selva alta; fueron nativos de éstas zonas el 72%. Los síntomas principales fueron fiebre (97%, hiporexia (91%, síntomas gastrointestinales (66% y malestar general (53%; los signos principales fueron palidez (97%, hepatomegalia (78%, taquicardia (75% y linfadenomegalia (72%. El promedio de hematocrito fue 18,8 %, 63% cursaron con anemia severa, leucocitosis 63%, hiperbilirrubinemia a predominio indirecto 45% de casos e hipoalbuminemia el 68%. Las complicaciones fueron frecuentes (78%, siendo las infecciosas 25%, no infecciosas 22%, infecciosas y no infecciosas 31%. De las infecciosas destacan las respiratorias (25%, fiebre tifoidea / salmonelosis (19%, un caso de endocarditis infecciosa y otro de probable púrpura fulminans. De las complicaciones no infecciosas desatacan las complicaciones cardiovasculares (34% y la neurobartonelosis (34%; hubo un caso de anemia hemolítica autoinmune. El 72% recibió transfusiones sanguíneas; el 97% recibió antibiótico, utilizando cloranfenicol (56% y ciprofloxacino (34%. La letalidad fue de 6%. Conclusiones: La Bartonelosis aguda en esta serie tuvo gran morbilidad, siendo frecuentes las complicaciones cardiovasculares, neurológicas y respiratorias. (Rev Med Hered 2006;17:122-131.

  18. On the ontology of the elementary particles. A philosophical analysis of the actual elementary-particle physics; Zur Ontologie der Elementarteilchen. Eine philosophische Analyse der aktuellen Elementarteilchenphysik

    Energy Technology Data Exchange (ETDEWEB)

    Brueckner, Thomas Christian

    2015-07-01

    After a description of the standard model of elementary-particle physics the author describes structuralistic reconstructions. Then the problem of the theoretical terms is discussed. Therafter the reconstruction of the standard-model elementary particles is described. Finally the ontology of leptons, quarks and both free and in atoms bound protons is considered.

  19. Digital Photography for Elementary Students

    Science.gov (United States)

    Neckers, Matt

    2009-01-01

    Most elementary students approach photography in an open-minded, experimental way. As a result, their images are often more playful than those taken by adults. Students discover more through their own explorations than they would learn through overly structured lessons. In this article, the author describes how he introduces his elementary…

  20. Elementary Algebra Connections to Precalculus

    Science.gov (United States)

    Lopez-Boada, Roberto; Daire, Sandra Arguelles

    2013-01-01

    This article examines the attitudes of some precalculus students to solve trigonometric and logarithmic equations and systems using the concepts of elementary algebra. With the goal of enticing the students to search for and use connections among mathematical topics, they are asked to solve equations or systems specifically designed to allow…

  1. 33 CFR 165.1120 - Security Zone; Naval Amphibious Base, San Diego, CA.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zone; Naval Amphibious Base, San Diego, CA. 165.1120 Section 165.1120 Navigation and Navigable Waters COAST GUARD, DEPARTMENT... § 165.1120 Security Zone; Naval Amphibious Base, San Diego, CA. (a) Location. The following area is a...

  2. Are elementary school teachers prepared to tackle bullying? : A pilot study

    NARCIS (Netherlands)

    Oldenburg, Beau; Bosman, Rie; Veenstra, Rene

    The aim of this pilot study was to investigate to what extent elementary school teachers were prepared to tackle bullying. Interview data from 22 Dutch elementary school teachers (M age=43.3, 18 classrooms in eight schools) were combined with survey data from 373 students of these teachers (M

  3. Elementary particle physics at the University of Florida. Annual progress report

    International Nuclear Information System (INIS)

    1996-01-01

    This report discusses the following topics: Task A: theoretical elementary particle physics; Task B: experimental elementary particle physics; Task C: axion project; Task G: experimental research in collider physics; and Task S: computer acquisition. Selected papers are indexed separately for inclusion in the Energy Science and Technology Database

  4. A Multi-Method Investigation of Mathematics Motivation for Elementary Age Students

    Science.gov (United States)

    Linder, Sandra M.; Smart, Julie B.; Cribbs, Jennifer

    2015-01-01

    This paper presents the results of a multi-method study examining elementary students with high self-reported levels of mathematics motivation. Second- through fifth-grade students at a Title One school in the southeastern United States completed the Elementary Mathematics Motivation Instrument (EMMI), which examines levels of mathematics…

  5. Cooperation in Japan. Grades Kindergarten-Third. Elementary Literature Series, Part 1.

    Science.gov (United States)

    Mukai, Gary

    The Stanford Program on International and Cross-Cultural Education (SPICE) represents a long-term effort by Stanford University to improve international and cross-cultural education in elementary and secondary schools. This volume of the elementary literature series focuses on the primary grades; utilizes primary source literature from Japan;…

  6. Elementary affine $lambda$-calculus with multithreading and side effects

    OpenAIRE

    Madet, Antoine; Amadio, Roberto M.

    2011-01-01

    Linear logic provides a framework to control the complexity of higher-order functional programs. We present an extension of this framework to programs with multithreading and side effects focusing on the case of elementary time. Our main contributions are as follows. First, we provide a new combinatorial proof of termination in elementary time for the functional case. Second, we develop an extension of the approach to a call-by-value $lambda$-calculus with multithreading and side effects. Thi...

  7. Exploring elementary students’ understanding of energy and climate change

    Directory of Open Access Journals (Sweden)

    Colin BOYLAN

    2008-10-01

    Full Text Available As environmental changes become a significant societal issue, elementary science curriculaneed to develop students’ understanding about the key concepts of energy and climate change.For teachers, developing quality learning experiences involves establishing what theirstudents’ prior understanding about energy and climate change are. A survey was developed toexplore what elementary students know and understand about renewable and non-renewablesources of energy and their relationship to climate change issues. The findings from thissurvey are reported in this paper.

  8. Aggregate Settling Velocities in San Francisco Estuary Margins

    Science.gov (United States)

    Allen, R. M.; Stacey, M. T.; Variano, E. A.

    2015-12-01

    One way that humans impact aquatic ecosystems is by adding nutrients and contaminants, which can propagate up the food web and cause blooms and die-offs, respectively. Often, these chemicals are attached to fine sediments, and thus where sediments go, so do these anthropogenic influences. Vertical motion of sediments is important for sinking and burial, and also for indirect effects on horizontal transport. The dynamics of sinking sediment (often in aggregates) are complex, thus we need field data to test and validate existing models. San Francisco Bay is well studied and is often used as a test case for new measurement and model techniques (Barnard et al. 2013). Settling velocities for aggregates vary between 4*10-5 to 1.6*10-2 m/s along the estuary backbone (Manning and Schoellhamer 2013). Model results from South San Francisco Bay shoals suggest two populations of settling particles, one fast (ws of 9 to 5.8*10-4 m/s) and one slow (ws of Brand et al. 2015). While the open waters of San Francisco Bay and other estuaries are well studied and modeled, sediment and contaminants often originate from the margin regions, and the margins remain poorly characterized. We conducted a 24 hour field experiment in a channel slough of South San Francisco Bay, and measured settling velocity, turbulence and flow, and suspended sediment concentration. At this margin location, we found average settling velocities of 4-5*10-5 m/s, and saw settling velocities decrease with decreasing suspended sediment concentration. These results are consistent with, though at the low end of, those seen along the estuary center, and they suggest that the two population model that has been successful along the shoals may also apply in the margins.

  9. Cianobacterias del embalse San Roque (Córdoba, Argentina Cyanobacteria of the San Roque reservoir (Córdoba, Argentina

    Directory of Open Access Journals (Sweden)

    Inés Claudia Daga

    2011-12-01

    Full Text Available Este trabajo es una contribución al conocimiento de las cianobacterias presentes en el embalse San Roque y forma parte de un estudio integral de la flora algal del mencionado embalse. Se citan 24 taxa correspondientes a los Ordenes Chroococcales (11, Nostocales (8 y Oscillatoriales (5. Synechocystis aquatilis, Gloeocapsa rupestris, Gomphosphaeria aponina, Chamaesiphon incrustans f. incrustans, Scytonema crispum, Tolypothrix distorta, Gloeotrichia pisum, Calothrix fusca, Trichodesmium lacustre, Geitlerinema splendidum, Lyngbya aestuarii y Borzia trilocularis son nuevas citas para la zona de estudio.This work is a contribution to the knowledge of the Cyanobacteria present in the San Roque reservoir and forms a part of an integral study of its algal flora. Twenty-four taxa are described and ilustrated: 11 Chroococcales, 8 Nostocales, and 5 Oscillatoriales. Synechocystis aquatilis, Gloeocapsa rupestris, Gomphosphaeria aponina, Chamaesiphon incrustans f. incrustans, Scytonema crispum, Tolypothrix distorta, Gloeotrichia pisum, Calothrix fusca, Trichodesmium lacustre, Geitlerinema splendidum, Lyngbya aestuarii and Borzia trilocularis.

  10. Change in failure stress on the southern san andreas fault system caused by the 1992 magnitude = 7.4 landers earthquake.

    Science.gov (United States)

    Stein, R S; King, G C; Lin, J

    1992-11-20

    The 28 June Landers earthquake brought the San Andreas fault significantly closer to failure near San Bernardino, a site that has not sustained a large shock since 1812. Stress also increased on the San Jacinto fault near San Bernardino and on the San Andreas fault southeast of Palm Springs. Unless creep or moderate earthquakes relieve these stress changes, the next great earthquake on the southern San Andreas fault is likely to be advanced by one to two decades. In contrast, stress on the San Andreas north of Los Angeles dropped, potentially delaying the next great earthquake there by 2 to 10 years.

  11. Written narrative practices in elementary school students.

    Science.gov (United States)

    Romano-Soares, Soraia; Soares, Aparecido José Couto; Cárnio, Maria Silvia

    2010-01-01

    Promotion of a written narratives production program in the third grade of an Elementary School. To analyze two written narrative practice proposals in order to verify which resources are more efficient in benefitting the textual productions of third grade Elementary School students. Sixty students were selected from two third grade groups of a public Elementary School in São Paulo (Brazil). For the analysis, students were divided into two groups (Group A and Group B). Fourteen children's storybooks were used. In Group A, the story was orally told by the researchers in a colloquial manner, keeping the narrator role and the original structure proposed by the author. In Group B, the story was fully read. The book was projected onto a screen and read aloud so the students could follow the reading and observe the corresponding illustrations. Voice changing resources in the characters' dialogues were used. In the overall comparison, statistically significant results were found for moment (initial and final assessments) and for interaction between groups. It was observed that both groups presented substantial development from initial to final assessment. The Written Narratives Promotion Program based on the shared reading of children's storybooks constituted a more effective strategy than telling the stories using a single reader.

  12. Examining LGBTQ-Based Literature Intended for Primary and Intermediate Elementary Students

    Science.gov (United States)

    Bickford, John H., III

    2018-01-01

    This content analysis research examined how lesbian, gay, bisexual, transsexual, transgender, and queer (LGBTQ) individuals and issues are represented in elementary-level trade books. The data pool included every LGBTQ-based trade book with intended audiences of primary (grades K-2) and intermediate (grades 3-5) elementary students. Trade books…

  13. A Phenomenological Examination of Antisocial Behaviors in the Elementary School Workplace

    Science.gov (United States)

    Morton, Cynthia

    2010-01-01

    Antisocial behavior has a direct impact on the public elementary school setting. While considerable research has been conducted on collegiality in postsecondary schools, this study addressed the gap in practice concerning the lack of attention in regard to the impact of antisocial behavior on collegial relationships in the elementary school…

  14. Using Citizen Science to Engage Preservice Elementary Educators in Scientific Fieldwork

    Science.gov (United States)

    Scott, Catherine M.

    2016-01-01

    Preservice elementary teachers' lack of confidence in teaching science is an ongoing concern. Only 29% of elementary teachers in the field felt "very well prepared to teach life science," according to the National Survey of Science and Mathematics Education. Research has suggested that bridging informal and formal science education can…

  15. The Predictors of Internet Addiction Behaviours for Taiwanese Elementary School Students

    Science.gov (United States)

    Lan, Chu M.; Lee, Yu H.

    2013-01-01

    Although there has been considerable research which has explored factors related to internet addiction, few studies have investigated elementary school students' involvement in this behaviour pattern. Participants in the present study were 1045 children in grades 3 to 6 from elementary schools in Taiwan. Students completed surveys on their use of…

  16. Integrating E-Books into Science Teaching by Preservice Elementary School Teachers

    Science.gov (United States)

    Lai, Ching-San

    2016-01-01

    This study aims to discuss the issues of integrating e-books into science teaching by preservice elementary school teachers. The study adopts both qualitative and quantitative research methods. In total, 24 preservice elementary school teachers participated in this study. The main sources of research data included e-books produced by preservice…

  17. The Effects of Note-Taking Skills Instruction on Elementary Students' Reading

    Science.gov (United States)

    Chang, Wan-Chen; Ku, Yu-Min

    2015-01-01

    The authors investigated the effects of a 5-week note-taking skills instructional program on note-taking and reading comprehension performance of elementary students. The participants included 349 fourth-grade students from 2 elementary schools in Taiwan. The Note-Taking Instruction group received approximately 40 min of note-taking skills…

  18. The Vulnerability of Urban Elementary School Arts Programs: A Case Study

    Science.gov (United States)

    Shaw, Ryan D.

    2018-01-01

    With the intent of improving understanding of cuts to elementary arts programs, the purpose of this research was to investigate how one urban school district (Lansing School District in Lansing, Michigan) eliminated its elementary arts specialists. Research questions were (1) What policy conditions enabled the Lansing School District's decision to…

  19. Innovation in the Elementary Classroom

    Science.gov (United States)

    Wright, Geoffrey A.; Jones, Matthew D.

    2018-01-01

    In this article, the authors outline an innovation curriculum that can be taught to elementary-aged students to expand their creative and innovative abilities and potential. The curriculum focuses on divergent and convergent thinking principles embedded in a hands-on learning pedagogy. The curriculum framework is based on an innovation model known…

  20. Atomic nucleus and elementary particles

    International Nuclear Information System (INIS)

    Zakrzewski, J.

    1976-01-01

    Negatively charged leptons and hadrons can be incorporated into atomic shells forming exotic atoms. Nucleon resonances and Λ hyperons can be considered as constituents of atomic nuclei. Information derived from studies of such exotic systems enriches our knowledge of both the interactions of elementary particles and of the structure of atomic nuclei. (author)

  1. Thomas Edison Accelerated Elementary School.

    Science.gov (United States)

    Levin, Henry M.; Chasin, Gene

    This paper describes early outcomes of a Sacramento, California, elementary school that participated in the Accelerated Schools Project. The school, which serves many minority and poor students, began training for the project in 1992. Accelerated Schools were designed to advance the learning rate of students through a gifted and talented approach,…

  2. Math Is Like a Lion Hunting a Sleeping Gazelle: Preservice Elementary Teachers' Metaphors of Mathematics

    Science.gov (United States)

    Latterell, Carmen M.; Wilson, Janelle L.

    2016-01-01

    Preservice elementary teachers hold a variety of beliefs about mathematics and mathematics learning, which influence their teaching. Previous research has shown that preservice elementary teachers believe that mathematics is doing arithmetic. However, it is unclear if preservice elementary teachers truly believe that mathematics is only…

  3. Recovery processes in the elementary cells of the bone marrow after radiation exposure

    International Nuclear Information System (INIS)

    Fliedner, T.M.; Steinbach, K.H.; Raffler, H.

    1977-01-01

    The task of this investigation was to represent the conception of the haematpoietic elementary cell population and their physiological regeneration under conditions of physiological equilibrium and haemopoiesis. Furthermore, the question was dealt with on which factors the recreation processes in the elementary cell storage depend, after a whole or partial body irradiation. Finally, the problem of the recreation processes in the elementary cell storage after chronicle irradiation is discussed. (orig./AJ) [de

  4. SOCIEDAD, PAZ Y GUERRA EN SAN AGUSTÍN

    Directory of Open Access Journals (Sweden)

    MIGUEL VERGARA VILLALOBOS

    2017-12-01

    Full Text Available Este trabajo analiza las nociones de sociedad, paz y guerra, en La ciudad de Dios, de San Agustín, a la que nos referimos principalmente según la edición bilingüe preparada por José Morán (1965. En una primera parte, a modo de introducción, se expone el argumento general del libro y se explica la teoría de las dos ciudades, la terrena y la de Dios. Enseguida se analiza la noción de sociedad, que se fundamenta en la justicia y en el interés común como camino para alcanzar la paz. Esto nos lleva a examinar la justicia, que para San Agustín es un concepto fundamental tanto en la ciudad terrena como en la ciudad de Dios. Teniendo este marco conceptual en cuanto la sociedad y la autoridad, se entra a discutir la paz, que representa uno de los aspectos centrales de la obra que comentamos. En contraste y como oposición a la paz se analiza la guerra; para nalizar con un tema cuyo origen clásicamente se atribuye a San Agustín, cual es la guerra justa.

  5. Introduction to the elementary particle physics

    International Nuclear Information System (INIS)

    Shellard, R.C.

    1982-03-01

    An introduction is given to the subject of elementary particle physics. Several particle properties are discussed and some models are shown. This introduction covers the theoretical as well as the experimental aspects including a topic on detectors. (L.C.) [pt

  6. Delivering Technological Literacy to a Class for Elementary School Pre-Service Teachers in South Korea

    Science.gov (United States)

    Kwon, Hyuksoo

    2017-01-01

    This study was conducted with the aim of creating a new introductory course emphasizing the development of technological literacy for elementary school pre-service teachers. This study also aimed to investigate elementary school pre-service teachers' attitudinal transition toward elementary school technology education (ESTE) and its…

  7. Elementary Statistics Tables

    CERN Document Server

    Neave, Henry R

    2012-01-01

    This book, designed for students taking a basic introductory course in statistical analysis, is far more than just a book of tables. Each table is accompanied by a careful but concise explanation and useful worked examples. Requiring little mathematical background, Elementary Statistics Tables is thus not just a reference book but a positive and user-friendly teaching and learning aid. The new edition contains a new and comprehensive "teach-yourself" section on a simple but powerful approach, now well-known in parts of industry but less so in academia, to analysing and interpreting process dat

  8. Elementary matrix theory

    CERN Document Server

    Eves, Howard

    1980-01-01

    The usefulness of matrix theory as a tool in disciplines ranging from quantum mechanics to psychometrics is widely recognized, and courses in matrix theory are increasingly a standard part of the undergraduate curriculum.This outstanding text offers an unusual introduction to matrix theory at the undergraduate level. Unlike most texts dealing with the topic, which tend to remain on an abstract level, Dr. Eves' book employs a concrete elementary approach, avoiding abstraction until the final chapter. This practical method renders the text especially accessible to students of physics, engineeri

  9. 77 FR 25128 - Amended Land Management Plans for the Angeles, Cleveland, Los Padres, and San Bernardino National...

    Science.gov (United States)

    2012-04-27

    ..., Los Padres, and San Bernardino National Forests, California AGENCY: Forest Service, USDA. ACTION... amendment of the Land Management Plans for the Angeles, Cleveland, Los Padres, and San Bernardino National... Angeles, Cleveland, Los Padres, and San Bernardino National Forests, collectively, ``four forests...

  10. A Survey of Greek Elementary School Students' Smoking Habits and Attitudes

    Science.gov (United States)

    Piperakis, Stylianos M.; Karagouni-Areou, Fotini; Triga, Anastasia; Piperakis, Alexander S.; Argyracouli, Efthimia; Thanou, Aggeliki; Papadimitriou, Basiliki; Gourgoulianis, Konstantinos; Zafiropoulou, Maria

    2007-01-01

    The purpose of this study was to investigate the smoking habits of Greek elementary school students, their attitudes towards smoking, and their perceptions of the health consequences of tobacco use. Data were obtained from 1,092 elementary school students who completed a 24-item questionnaire designed for this study. Results indicated more older…

  11. A research Program in Elementary Particle Physics

    Energy Technology Data Exchange (ETDEWEB)

    Sobel, Henry; Molzon, William; Lankford, Andrew; Taffard, Anyes; Whiteson, Daniel; Kirkby, David

    2013-07-25

    Work is reported in: Neutrino Physics, Cosmic Rays and Elementary Particles; Particle Physics and Charged Lepton Flavor Violation; Research in Collider Physics; Dark Energy Studies with BOSS and LSST.

  12. Franklin Elementary PTA's "Sweet Success"

    Science.gov (United States)

    Freemon, Jennifer

    2012-01-01

    Just a few short years ago, Franklin Elementary in Glendale, California, was in danger of closing its doors because enrollment was so low. The school district decided to put into place a series of language immersion programs at the site. It currently houses Spanish, Italian, and German immersion programs. These programs have boosted Franklin's…

  13. Play Therapy in Elementary Schools

    Science.gov (United States)

    Landreth, Garry L.; Ray, Dee C.; Bratton, Sue C.

    2009-01-01

    Because the child's world is a world of action and activity, play therapy provides the psychologist in elementary-school settings with an opportunity to enter the child's world. In the play therapy relationship, toys are like the child's words and play is the child's language. Therefore, children play out their problems, experiences, concerns, and…

  14. October 1986 San Salvador, El Salvador Images

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — At least 1,000 people killed, 10,000 injured, 200,000 homeless and severe damage in the San Salvador area. About 50 fatalities were the result of landslides in the...

  15. The Eastern California Shear Zone as the northward extension of the southern San Andreas Fault

    Science.gov (United States)

    Thatcher, Wayne R.; Savage, James C.; Simpson, Robert W.

    2016-01-01

    Cluster analysis offers an agnostic way to organize and explore features of the current GPS velocity field without reference to geologic information or physical models using information only contained in the velocity field itself. We have used cluster analysis of the Southern California Global Positioning System (GPS) velocity field to determine the partitioning of Pacific-North America relative motion onto major regional faults. Our results indicate the large-scale kinematics of the region is best described with two boundaries of high velocity gradient, one centered on the Coachella section of the San Andreas Fault and the Eastern California Shear Zone and the other defined by the San Jacinto Fault south of Cajon Pass and the San Andreas Fault farther north. The ~120 km long strand of the San Andreas between Cajon Pass and Coachella Valley (often termed the San Bernardino and San Gorgonio sections) is thus currently of secondary importance and carries lesser amounts of slip over most or all of its length. We show these first order results are present in maps of the smoothed GPS velocity field itself. They are also generally consistent with currently available, loosely bounded geologic and geodetic fault slip rate estimates that alone do not provide useful constraints on the large-scale partitioning we show here. Our analysis does not preclude the existence of smaller blocks and more block boundaries in Southern California. However, attempts to identify smaller blocks along and adjacent to the San Gorgonio section were not successful.

  16. Explorations in Elementary Mathematical Modeling

    Directory of Open Access Journals (Sweden)

    Mazen Shahin

    2010-06-01

    Full Text Available In this paper we will present the methodology and pedagogy of Elementary Mathematical Modeling as a one-semester course in the liberal arts core. We will focus on the elementary models in finance and business. The main mathematical tools in this course are the difference equations and matrix algebra. We also integrate computer technology and cooperative learning into this inquiry-based learning course where students work in small groups on carefully designed activities and utilize available software to support problem solving and understanding of real life situations. We emphasize the use of graphical and numerical techniques, rather than theoretical techniques, to investigate and analyze the behavior of the solutions of the difference equations.As an illustration of our approach, we will show a nontraditional and efficient way of introducing models from finance and economics. We will also present an interesting model of supply and demand with a lag time, which is called the cobweb theorem in economics. We introduce a sample of a research project on a technique of removing chaotic behavior from a chaotic system.

  17. Quantum mechanics from elementary view

    International Nuclear Information System (INIS)

    Fischer, Karl

    2009-01-01

    This book offers an introduction to quantum mechanics as well as interesting supplements up to the beginnings of quantum field theory. A comprehensive mathematical block facilitates the access. It is rich on examples and otherwise mostly not findable calculations, which make it so transparent in its results. It likes the historical relations and brings so the feeling how much has been grown from the past. It brings also a short outline about relativity theory up to the understanding of the term ''metrics''. The spotlight holds the term product space, by means of which quantum mechanics is put together to a practicable theory. A simpler notation for instance at the Dirac equation facilitates also the understanding. On the mathematical side it is above all the term distributive law as well as the term linear combination, which lead so simple transparent definitions fast to more general. Generally it is tried to find an as possible elementary access to at least not elementary connections. So may it be for many both instructive and interesting

  18. Balancing Teacher and Student Roles in Elementary Classrooms: Preservice Elementary Teachers' Learning about the Inquiry Continuum

    Science.gov (United States)

    Biggers, Mandy; Forbes, Cory T.

    2012-01-01

    Using the National Research Council's inquiry continuum framework, we use a multiple-case study research design to investigate the teacher- and student-directedness of elementary preservice teachers' planned and enacted science lessons and their pedagogical reasoning about science instruction during a semester-long science methods course. Our…

  19. San Diego Littoral Cell CRSMP Receiver Sites 2009

    Data.gov (United States)

    California Natural Resource Agency — A total of 27 possible placement sites (some with multiple placement footprints) are incorporated into this San Diego Coastal Regional Sediment Management Plan to...

  20. San Diego Littoral Cell CRSMP Receiver Sites 2009

    Data.gov (United States)

    California Department of Resources — A total of 27 possible placement sites (some with multiple placement footprints) are incorporated into this San Diego Coastal Regional Sediment Management Plan to...

  1. Magnetotelluric data collected to characterize aquifers in the San Luis Basin, New Mexico

    Science.gov (United States)

    Ailes, Chad E.; Rodriguez, Brian D.

    2015-01-01

    The U.S. Geological Survey is conducting a series of multidisciplinary studies of the San Luis Basin as part of the Geologic Framework of Rio Grande Basins project. Detailed geologic mapping, high-resolution airborne magnetic surveys, gravity surveys, magnetotelluric surveys, and hydrologic and lithologic data are being used to better understand the aquifers in the San Luis Basin. This report describes one north-south and two east-west regional magnetotelluric sounding profiles, acquired in June of 2010 and July and August of 2011, across the San Luis Basin in northern New Mexico. No interpretation of the data is included.

  2. From inside the black box: Teacher perceptions of science instruction at the elementary level

    Science.gov (United States)

    Ferrini, Cynthia D.

    Science education reform projects aimed at elementary school children arose in the 1960's. The most prevalent of these reforms utilized the inquiry, or hands-on, science method. Billions of dollars have been invested in these reforms. Yet, reports indicate that science is not being taught at the level one might expect in elementary schools. This research was an analysis of the problems and concerns teachers at one school district faced as they tried to implement and sustain elementary inquiry science instruction. The district chosen was a large suburban district in the Western United States. The population was ninety percent Caucasian with a slightly more ethnically diverse school population. This district was chosen because it had an elementary science program for over twenty years and had received national acclaim for that program. The district had a stable and homogeneous staff there was a low administrator and teacher turnover rate and the elementary teaching population was ninety percent Caucasian and ninety percent female. Interviews with administrators and teachers were conducted. Data were collected from focus groups of teachers and science partners. Observations of elementary science classroom instruction and professional development sessions were made. Results of this research indicated that one important key to elementary science reform rests in the hands of teachers. Once the door to the classroom is closed, the teacher can decide to teach or not to teach science. The findings of this research illustrate that teachers hold ideas about science and science instruction that are antithetical to some tenets of inquiry science. Until these ideas are addressed it will be difficult, if not impossible, to implement a systemic elementary inquiry science program. This study demonstrates that professional development for elementary teachers in science needs to change from a focus on the mechanical usage of individual units to a focus on teacher expectations for

  3. Chapter 8. Elementary notions on the quantum theory of potential scattering

    International Nuclear Information System (INIS)

    Anon.

    1977-01-01

    Elementary notions in quantum theory of potential scattering are exposed: stationary states of scattering, calculus of cross section, scattering by central potential, phase shift method. In complement, these questions are studied: free particle (stationary states of well defined kinetic momentum); phenomenological description of collisions with absorption; elementary examples of application of the scattering theory [fr

  4. A Case Study on Mathematical Literacy of Prospective Elementary School Teachers

    Science.gov (United States)

    Suharta, I. Gusti Putu; Suarjana, I. Made

    2018-01-01

    The purpose of this study is to describe Mathematical Literacy (ML) of Prospective Elementary School Teachers with attention to aspects of mathematical skills and gender. The type of research is qualitative with the research design of Case Study. Respondents are assigned 12 Prospective Elementary School Teachers, consisting of 6 men and 6 women.…

  5. Waterbird nest monitoring program in San Francisco Bay (2005-10)

    Science.gov (United States)

    Ackerman, Joshua T.; Herzog, Mark P.

    2012-01-01

    Historically, Forster’s Terns (Sterna forsteri), American Avocets (Recurvirostra americana), and Black-necked Stilts (Himantopus mexicanus) were uncommon residents of San Francisco Bay, California (Grinnell and others, 1918; Grinnell and Wythe, 1927; Sibley, 1952). Presently, however, avocets and stilts are the two most abundant breeding shorebirds in San Francisco Bay (Stenzel and others, 2002; Rintoul and others, 2003). More than 4,000 avocets and 1,000 stilts, roughly 20 percent of their San Francisco Bay wintering populations, breed within the estuary, making San Francisco Bay the largest breeding area for these species on the Pacific Coast (Stenzel and others, 2002; Rintoul and others, 2003). Forster’s Terns were first observed breeding in the San Francisco Bay in 1948 (110 nests); they had increased to over 4000 individuals by the 1980s (Sibley, 1952; Gill, 1977; Harvey and others, 1992; Carter and others, 1990) and were estimated at 2000–3000 for 1998–2002; (Strong and others, 2004).It is hypothesized that the relatively large size of the current waterbird breeding populations is a result of the creation of artificial salt evaporation ponds from the 1930s through the 1950s (Gill, 1977; Goals Project, 1999). Until recently, these salt ponds and associated islands used by waterbirds for nesting have been managed relatively similarly and have supported large breeding waterbird populations. Recently, the South Bay Salt Pond Restoration Project has implemented plans to convert 50–90 percent of the 15,000 acres of salt ponds in the South San Francisco Bay back to tidal marsh habitat. Therefore, there is concern that the Restoration Project, while benefiting other native species, could negatively influence local breeding populations of waterbirds that are reliant on salt pond habitats for both breeding and foraging. A primary goal of the South Bay Salt Pond Restoration Project is to maintain current breeding waterbird populations (South Bay Salt Pond Long

  6. Elementary and middle school science improvement project

    Science.gov (United States)

    Mcguire, Saundra Y.

    1989-01-01

    The Alabama A and M University Elementary and Middle School Science Improvement Project (Project SIP) was instituted to improve the science knowledge of elementary and middle school teachers using the experimental or hands-on approach. Summer workshops were conducted during the summers of 1986, 1987, and 1988 in the areas of biology, chemistry, physics, and electricity, and magnetism. Additionally, a manual containing 43 lessons which included background information, experiments and activities for classroom and home use was provided to each teacher. During the course of the project activities, the teachers interacted with various university faculty members, scientists, and NASA staff. The administrative aspects of the program, the delivery of the services to participating teachers, and the project outcome are addressed.

  7. Chaos and fractals an elementary introduction

    CERN Document Server

    Feldman, David P

    2012-01-01

    For students with a background in elementary algebra, this text provides a vivid introduction to the key phenomena and ideas of chaos and fractals, including the butterfly effect, strange attractors, fractal dimensions, Julia sets and the Mandelbrot set, power laws, and cellular automata.

  8. Elementary school teachers’ knowledge on dyslexia

    Directory of Open Access Journals (Sweden)

    Isabelly Silva do Nascimento

    Full Text Available ABSTRACT Objective: to describe the knowledge of elementary school teachers on child dyslexia. Methods: 10 teachers from the 1st to the 5th year of elementary education in public schools in the municipality of Abreu e Lima, Pernambuco, Brazil, participated in the study. A semi-structured interview was conducted with each teacher, individually, in the school itself and was based on some guiding questions. Results: content analysis allowed the identification of three thematic categories: 1. Teacher training does not address dyslexia; 2. Feelings and difficulties of the literacy teacher facing the challenges of literacy; 3. Lack of knowledge about dyslexia: school management of possibly dyslexic children. Conclusion: the research revealed the lack of knowledge of literacy teachers on dyslexia, despite having undergraduate and postgraduate education, as well as that of teachers who participated in training offered by the municipal education network.

  9. Distribución del ocelote (Leopardus pardalis en San Luis Potosí, México Distribution of the ocelot (Leopardus pardalis in San Luis Potosí, Mexico

    Directory of Open Access Journals (Sweden)

    Jesús Manuel Martínez-Calderas

    2011-09-01

    Full Text Available Para definir la distribución geográfica del ocelote en el estado de San Luis Potosí, México, se obtuvieron nuevos registros de la especie. El estudio se realizó de enero de 2007 a abril de 2009. Se obtuvieron 41 registros de ocelotes por medio de entrevistas y trampeo-fotográfico. Los registros se localizaron en comunidades vegetales de selva baja caducifolia (37%, matorral submontano (22%, bosque de encino (15%, selva mediana (10%, selva alta perennifolia, bosque mesófilo de montaña, bosque de pino-encino y matorral desértico micrófilo (10%. La presencia de ocelotes se ubicó en los municipios de Ciudad del Maíz, El Naranjo, Cerritos, Guadalcázar, San Nicolás Tolentino y Ciudad Valles en de elevaciones de 38 a 2 400 m snm. Los resultados de esta investigación sugieren una distribución del ocelote más hacia el oeste del estado respecto a su distribución original. El presente estudio definió nuevas regiones con presencia de ocelotes que pueden ser consideradas en el desarrollo de estrategias de conservación de la especie en el estado de San Luis Potosí.To determine the geographic distribution of ocelot in the state of San Luis Potosí, Mexico, we obtained new records. The study was conducted from January 2007 to April 2009. We recorded 41 ocelot records by interviews and camera-trapping. Ocelots records were located in tropical deciduous forest (37%, semitropical thornscrub (22%, oak forest (15%, tropical forest (10%, tall tropical deciduous forest, desert scrub, pine-oak forest and clouded forest (10%. Ocelot records were located in the municipalities of Ciudad del Maíz, El Naranjo, Cerritos, Guadalcazar, San Nicolás Tolentino and Ciudad Valles where the elevation ranged from 38 to 2 400 m. The evidence of this research suggests that ocelot range is more extended to the west than its original geographical range. This study defined new regions with presence of ocelots that may be considered to develop conservation strategies

  10. Elementary Students' Metaphors for Democracy

    Science.gov (United States)

    Dundar, Hakan

    2012-01-01

    The purpose of the research was to reveal elementary 8th grade students' opinions concerning democracy with the aid of metaphors. The students were asked to produce metaphors about the concept of democracy. 140 students from 3 public schools in Ankara (Turkey) participated in the research. 55% of the students were females and 45% were males. The…

  11. Making elementary particles visible

    Energy Technology Data Exchange (ETDEWEB)

    Cohen, Eyal [ArSciMed (art, science, media), 100, rue du Faubourg Saint Antoine, 75012 Paris (France)

    1994-07-15

    Ever since the days of the ancient Greek atomists, the notion that matter is made up of tiny fundamental elements has dominated the history of scientific theories. Elementary particles (and now strings...) are the latest in this chronological list of fundamental objects. Our notions of what a physical theory should be like, and what precisely ''matter is made up of...'' really means, have evolved with the years, undergoing a profound revolution with quantum mechanics.

  12. Comparing Slovenian year 8 and year 9 elementary school pupils’ knowledge of electrolyte chemistry and their intrinsic motivation

    OpenAIRE

    Devetak, Iztok; Drofenik Lorber, Erna; Juriševič, Mojca; Glažar, Saša

    2015-01-01

    This study explored the differences between eight-year elementary school pupils (before the curriculum reform) and nine-year elementary school pupils (soon after the curriculum reform) in Slovenia, as regards specific chemistry knowledge and motivation to learn chemistry. Altogether, 191 elementary school pupils participated in the study. The results show that pupils of nine-year elementary school are not significantly better at chemistry knowledge test scores than eight-year elementary schoo...

  13. Burnout in Prospective Elementary School Teachers: Is It Related to Reasons for Choosing the Elementary School Teaching Major, Beliefs about the Teaching Career and Satisfaction with the Choice?

    Science.gov (United States)

    Dundar, Sahin

    2014-01-01

    The present study was carried out to examine the relationships between elementary school teacher candidates' motivations for choosing the teaching profession, beliefs about the teaching profession, satisfaction with the choice, and burnout. The study was carried out with 171 senior elementary school teacher candidates at one public university in…

  14. Integration of School Features into Taiwanese Elementary School New English Curriculum

    Science.gov (United States)

    Chien, Chin-Wen

    2014-01-01

    Elementary school English activation curriculum, an additional two culture classes, has been implemented only in New Taipei City in Taiwan starting from 2010, so only a few studies focus on it. This is a case study of an English teacher's integration of a school's features into the activation curriculum in a rural elementary school. This study…

  15. Project A+, Elementary Technology Demonstration Schools, 1991-92: The Second Year.

    Science.gov (United States)

    Nichols, Todd; Frazer, Linda

    The Elementary Technology Demonstration Schools program, where four elementary schools were equipped with computer hardware and software, was made possible by grants from IBM and Apple, Inc. The goals of the program were, in 3 years, to reduce by 50% the number of students not in their age appropriate grade level and those students not achieving…

  16. The Effectiveness of Special Education Teacher Evaluation Processes: Perspectives from Elementary Principals

    Science.gov (United States)

    Glowacki, Heather; Hackmann, Donald G.

    2016-01-01

    This study examined perceptions of Illinois public elementary school principals regarding the effectiveness of their school districts' evaluation systems for special education teachers in promoting professional development and job performance accountability. Using an online questionnaire, 330 of the state's 1,551 elementary principals responded to…

  17. Instructional Support and Implementation Structure during Elementary Teachers' Science Education Simulation Use

    Science.gov (United States)

    Gonczi, Amanda L.; Chiu, Jennifer L.; Maeng, Jennifer L.; Bell, Randy L.

    2016-01-01

    This investigation sought to identify patterns in elementary science teachers' computer simulation use, particularly implementation structures and instructional supports commonly employed by teachers. Data included video-recorded science lessons of 96 elementary teachers who used computer simulations in one or more science lessons. Results…

  18. Electron, Muon, and Tau Heavy Lepton--Are These the Truly Elementary Particles?

    Science.gov (United States)

    Perl, Martin L.

    1980-01-01

    Discussed is the present concept of the ultimate nature of matter--the elementary particle. An explanation is given for why the lepton family of particles--the electron, muon, and tau--may be truly elementary. The tau lepton is described in more detail. (Author/DS)

  19. Complementing Mathematics Teachers’ Horizon Content Knowledge with an Elementary-on-Advanced Aspect

    Directory of Open Access Journals (Sweden)

    Yi-An Cho

    2018-02-01

    Full Text Available Although Ball and her colleagues provided empirical evidence to support the existence of the six sub-domains in mathematical knowledge for teaching (MKT and further explained or defined the majority of these sub-domains, there were few explanations of what horizon content knowledge (HCK embedded in MKT meant and they merely provided ideas about HCK. Many researchers attempted to provide some teaching incidents and exemplification to interpret the construct of HCK. Moreover, they thought teachers’ studies of tertiary mathematics are useful for classroom teaching practice. Their discourse and instantiation of HCK was correspondent with a higher perspective on elementary mathematics mentioned by Felix Klein (1924, but was not entirely coincide with a kind of elementary perspective on advanced knowledge introduced by Ball and Bass (2009. This study lasted 1 years, and data collection included in-depth interviews, classroom observation and video analysis. We provide a shared classroom teaching incidence and illustrations to explain and to describe the construct of HCK. HCK not only is a kind of elementary perspective on advanced mathematical knowledge, but also complements to a higher perspective on elementary mathematics. Furthermore, HCK could be seen as a reciprocal pathway between the elementary and advanced mathematical knowledge.

  20. [Aggression and related factors in elementary school students].

    Science.gov (United States)

    Ji, Eun Sun; Jang, Mi Heui

    2010-10-01

    This study was done to explore the relationship between aggression and internet over-use, depression-anxiety, self-esteem, all of which are known to be behavior and psychological characteristics linked to "at-risk" children for aggression. Korean-Child Behavior Check List (K-CBCL), Korean-Internet Addiction Self-Test Scale, and Self-Esteem Scale by Rosenberg (1965) were used as measurement tools with a sample of 743, 5th-6th grade students from 3 elementary schools in Jecheon city. Chi-square, t-test, ANOVA, Pearson's correlation and stepwise multiple regression with SPSS/Win 13.0 version were used to analyze the collected data. Aggression for the elementary school students was positively correlated with internet over-use and depression-anxiety, whereas self-esteem was negatively correlated with aggression. Stepwise multiple regression analysis showed that 68.4% of the variance for aggression was significantly accounted for by internet over-use, depression-anxiety, and self-esteem. The most significant factor influencing aggression was depression-anxiety. These results suggest that earlier screening and intervention programs for depression-anxiety and internet over-use for elementary student will be helpful in preventing aggression.

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