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Sample records for united negro college

  1. THE ECONOMIC SITUATION OF NEGROES IN THE UNITED STATES.

    Science.gov (United States)

    Department of Labor, Washington, DC.

    BY 1960, NEGROES CONSTITUTED 10.5 PERCENT OF THE POPULATION IN THE UNITED STATES. THE RECENT GREATER RATE OF POPULATION GROWTH AMONG NEGROES THAN AMONG WHITES RESULTS LARGELY FROM A DROP IN THE NEGRO DEATH RATE. IN 1900, ABOUT 90 PERCENT OF NEGROES LIVED IN THE SOUTH. ONLY 60 PERCENT WERE STILL IN THE SOUTH BY 1960, AND THE MAJORITY OF THEM WERE…

  2. TEST BIAS--VALIDITY OF THE SCHOLASTIC APTITUDE TEST FOR NEGRO AND WHITE STUDENTS IN INTEGRATED COLLEGES.

    Science.gov (United States)

    CLEARY, T. ANNE

    FOR THIS RESEARCH, A TEST WAS SAID TO BE BIASED FOR MEMBERS OF A SUBGROUP OF THE POPULATION IF, IN THE PREDICTION OF A CRITERION FOR WHICH THE TEST WAS DESIGNED, CONSISTENT NONZERO ERRORS OF PREDICTION ARE MADE FOR MEMBERS OF THE SUBGROUP. SAMPLES OF NEGRO AND WHITE STUDENTS FROM THREE INTEGRATED COLLEGES WERE STUDIED. IN THE TWO EASTERN COLLEGES,…

  3. Technical Assistance and Program Support: DoD Historical Black Colleges and Universities and Minority Institutions Program

    National Research Council Canada - National Science Library

    Andrews, Aaron

    2003-01-01

    ... (His), the United Negro College Fund Special Programs developed and implemented a comprehensive technical assistance and infrastructure program This program has provided HBCUs, HSIs, TCUs, and MIs...

  4. The Negro Dance

    Directory of Open Access Journals (Sweden)

    Katherine Dunham

    2016-12-01

    Full Text Available Katherine Dunham’s The Negro Dance (1941 focuses on dances in the West Indies and on their similarities with North American dance forms rooted in African culture. Though backed up by the New Negro arguments of the time, it shows Dunham’s prominent elaboration of a dignified African-American art based on syncretic bodily practices, which anticipated theorizations in dance and cultural studies. By uniting a theoretical approach and performance ability, she also made methodological choices which, decades later, became standard practices in the field of dance anthropology. Moreover, she is now considered an ante litteram exponent of public or applied anthropology due to the fact that, by using various strategies, she managed to take anthropological knowledge out of the academic world and use it as an instrument for social transformation. The Negro Dance is introduced by Rossella Mazzaglia and followed by an afterword by Cristiana Natali and a biographical note by Marie-Christine Dunham Pratt.

  5. Latino College Completion: United States

    Science.gov (United States)

    Excelencia in Education (NJ1), 2012

    2012-01-01

    In 2009, Excelencia in Education launched the Ensuring America's Future initiative to inform, organize, and engage leaders in a tactical plan to increase Latino college completion. An executive summary of Latino College Completion in 50 states synthesizes information on 50 state factsheets and builds on the national benchmarking guide. Each…

  6. 75 FR 81650 - Notice Pursuant to the National Cooperative Research and Production Act of 1993-United Negro...

    Science.gov (United States)

    2010-12-28

    ..., Grambling, LA; Jackson State University, Jackson, MS; Jarvis Christian College, Hawkins, TX; Johnson C... the strategic importance of HBCUs and MIs in Federal research and development; and (e) to define..., UNCFSP-RDC, in care of Engineering and Management Executive, Inc. (EME), 101 South Whiting Street, Suite...

  7. History of College Zoology Textbooks in the United States.

    Science.gov (United States)

    Staud, Margaret Crespo

    Studied were the characteristics and changes of textbooks used in college zoology instruction in the United States and the relationship of these findings to the development of college zoology instruction. The authors' professional backgrounds, the textbook audience, and the status of zoology and college education at the time each book was written…

  8. Creating an Image for Black Higher Education: A Visual Examination of the United Negro College Fund's Publicity, 1944-1960

    Science.gov (United States)

    Gasman, Marybeth; Epstein, Edward

    2004-01-01

    In this article, the authors use visual communications as a way to illuminate race relations and higher education from 1944 to 1960. They analyze photographs, and also draw on the history of graphic design to discuss the style of the publications in which they are placed. The pieces that they analyze are historical-drawn from the papers of the…

  9. Professor Camillo Negro's Neuropathological Films.

    Science.gov (United States)

    Chiò, Adriano; Gianetto, Claudia; Dagna, Stella

    2016-01-01

    Camillo Negro, Professor in Neurology at the University of Torino, was a pioneer of scientific film. From 1906 to 1908, with the help of his assistant Giuseppe Roasenda and in collaboration with Roberto Omegna, one of the most experienced cinematographers in Italy, he filmed some of his patients for scientific and educational purposes. During the war years, he continued his scientific film project at the Military Hospital in Torino, filming shell-shocked soldiers. In autumn 2011, the Museo Nazionale del Cinema, in partnership with the Faculty of Neurosciences of the University of Torino, presented a new critical edition of the neuropathological films directed by Negro. The Museum's collection also includes 16 mm footage probably filmed in 1930 by Doctor Fedele Negro, Camillo's son. One of these films is devoted to celebrating the effects of the so-called "Bulgarian cure" on Parkinson's disease.

  10. Rural model dedicated education unit: partnership between college and hospital.

    Science.gov (United States)

    Harmon, Lisa M

    2013-02-01

    This article describes the pilot project development of a rural model Dedicated Education Unit (DEU) by a rural college nursing program and a rural hospital to increase student nurses' confidence and proficiency and improve recruitment of prepared rural staff nurses. Traditionally, for economies of scale, most student clinical rotations occurred in urban settings with the number of students per clinical instructor allowed by the state board of nursing. College budget constraints negated the placement of fewer than this mandated maximum number of students in a rural hospital with a clinical instructor; moreover, rural hospitals could not accommodate 10 students at one time. Rural nursing students were anxious in the urban settings, and this anxiety precluded learning in many instances. Rural hospitals face higher registered nurse vacancies than urban centers. Of the nurses applying for open positions, many were not prepared for the demands of rural nursing, resulting in increased turnover and high orientation costs. The rural model DEU addressed issues of both the nursing program and the hospital. The design and development of the rural model DEU and the advantages of the partnership for the college nursing program and the hospital are discussed. Initial outcomes and serendipitous findings from the pilot project are also discussed. Copyright 2013, SLACK Incorporated.

  11. Reading Habits of College Students in the United States

    Science.gov (United States)

    Huang, SuHua; Capps, Matthew; Blacklock, Jeff; Garza, Mary

    2014-01-01

    This study employed a convergent mixed-method research design to investigate reading habits of American college students. A total of 1,265 (466 male and 799 female) college students voluntarily participated in the study by completing a self-reported survey. Twelve students participated in semi-structured interviews and classroom observations.…

  12. The Learning Disabilities Unit at the State College of Optometry/SUNY.

    Science.gov (United States)

    Solan, Harold A.; Springer, Florence E.

    1986-01-01

    The Learning Disabilities Unit of New York's State College of Optometry, providing testing and research for learning disabled adults and children and professional instruction and clinical experience for students of optometry and related fields, is described. (MSE)

  13. SOCIAL CHANGE AND THE NEGRO PROBLEM.

    Science.gov (United States)

    ROSE, ARNOLD

    A FEW OF THE DYNAMIC FORCES OF CHANGE THAT HAVE BROUGHT ABOUT A NEW SITUATION FOR THE AMERICAN NEGRO ARE PRESENTED. THESE FORCES HAVE OCCURRED WITHOUT A VIOLENT REVOLUTION AND WITHIN MANY INSTITUTIONS, THE FORCES WERE MOST COMPLETE IN THE ECONOMIC SPHERES, LESS SO IN THE LEGAL AND POLITICAL SPHERES, AND LEAST IN THE SPHERE OF SOCIAL RELATIONSHIP.…

  14. O negro e a universidade brasileira

    Directory of Open Access Journals (Sweden)

    Delcele Mascarenhas Queiroz

    2008-12-01

    Full Text Available En la investigación sobre la participación de los segmentos raciales en la universidad brasileña, realizada en distintas regiones de Brasil, se busca reflejar sobre las razones de la persistencia de desiguladades entre negros y blancos en la sociedad brasileña, mismo después de más de un siglo del fin de la esclavitud. La investigación envolvió universidades públicas en estados con variados porcentajes de negros en su población. La conclusión que se hace es que la desigualdad entre blancos y negros resulta de un modo racista de actuar que incluye la discriminación hacia el negro como un mecanismo de diferenciación en la sociedad.__________________ABSTRACT:Through the research on the racial segments participation in the Brazilian university, done in different regions of Brazil, the article intends to show the reasons of the persisting inequality between black people and white people in the Brazilian society, even after more than a century since the slavery abolition. The research involved public universities in states with diverse percentages of black people within the population. The conclusion is that inequality between black people and white people is a consequence of a racist way of acting that includes the discrimination towards black people as a mechanism of differentiation in the society.

  15. Cigarette Smoking among Korean International College Students in the United States

    Science.gov (United States)

    Sa, Jaesin; Seo, Dong-Chul; Nelson, Toben F.; Lohrmann, David K.

    2013-01-01

    Objective and Participants: This study explored (1) the prevalence of cigarette smoking among South Korean international college students in the United States, (2) differences in smoking between on- and off-campus living arrangements, and (3) predictors of an increase in smoking over time in the United States Methods: An online survey was…

  16. Chemical study of sediments from Solimoes and Negro rivers by Instrumental Neutron Activation Analysis (INAA)

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Jose O. dos [Coordenacao de Cursos Tecnicos e Superiores. Instituto Federal de Educacao, Ciencia e Tecnologia de Sergipe, Lagarto, SE (Brazil); Munita, Casimiro S., E-mail: camunita@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil); Soares, Emilio A.A., E-mail: easores@ufam.edu.br [Departamento de Geociencias. Universidade Federal do Amazonas (UFAM), Manaus, AM (Brazil)

    2011-07-01

    The events of the last 70,000 yrs of the history of the Solimoes-Amazon river system are recorded in the fluvial terraces at region of confluence of the Negro and Solimoes rivers, and are markers of changes in the landscape of the Amazon region and it can be observed by analyzing the sedimentary deposits quaternary in Amazon fluvial system. The aim of this work was to contribute with the characterization sedimentological - stratigraphic of Pleistocene succession of the confluence zone of the Negro and Solimoes rivers by means of elemental chemical analysis. To provenance study, 24 elements were determined by Instrumental Neutron Activation Analysis from sediment samples collected at confluence of Negro and Solimoes rivers and the results were interpreted using cluster and linear discriminant analysis, which classification to priori were samples previously defined according to Pleistocene stratigraphic units individualized at study area. According to discriminant analysis, one can infer that samples from the basin of the Solimoes River and Parana do Ariau grabens (GPA) are not significantly different, but there was a clear separation of sediments from Negro and GPA groups. It was also obtained that samples from highest and lowest terraces that the of the Solimoes river and Parana do Ariau are different, suggesting that it is a process that reflects the influence of chemical weathering on the uppermost terrace deposits. Thus, this work contributes to determine the contribution of the sediments deposited by the Solimoes and Negro rivers in the filling of tectonic depressions and in the variations of degree of weathering between younger and older units, and provides additional subsidies to build the geological evolution of the area. (author)

  17. Chemical study of sediments from Solimoes and Negro rivers by Instrumental Neutron Activation Analysis (INAA)

    International Nuclear Information System (INIS)

    Santos, Jose O. dos; Munita, Casimiro S.; Soares, Emilio A.A.

    2011-01-01

    The events of the last 70,000 yrs of the history of the Solimoes-Amazon river system are recorded in the fluvial terraces at region of confluence of the Negro and Solimoes rivers, and are markers of changes in the landscape of the Amazon region and it can be observed by analyzing the sedimentary deposits quaternary in Amazon fluvial system. The aim of this work was to contribute with the characterization sedimentological - stratigraphic of Pleistocene succession of the confluence zone of the Negro and Solimoes rivers by means of elemental chemical analysis. To provenance study, 24 elements were determined by Instrumental Neutron Activation Analysis from sediment samples collected at confluence of Negro and Solimoes rivers and the results were interpreted using cluster and linear discriminant analysis, which classification to priori were samples previously defined according to Pleistocene stratigraphic units individualized at study area. According to discriminant analysis, one can infer that samples from the basin of the Solimoes River and Parana do Ariau grabens (GPA) are not significantly different, but there was a clear separation of sediments from Negro and GPA groups. It was also obtained that samples from highest and lowest terraces that the of the Solimoes river and Parana do Ariau are different, suggesting that it is a process that reflects the influence of chemical weathering on the uppermost terrace deposits. Thus, this work contributes to determine the contribution of the sediments deposited by the Solimoes and Negro rivers in the filling of tectonic depressions and in the variations of degree of weathering between younger and older units, and provides additional subsidies to build the geological evolution of the area. (author)

  18. Being Negro in Recife Brazil: A Political Aesthetics Approach

    NARCIS (Netherlands)

    Leerzem, van L.; Nuijten, M.C.M.; Vries, de P.A.

    2016-01-01

    In this article, we explore the role of cultura negra and what it means to be negro for a particular segment of the population of Recife, Brazil. We zoom in on participants in Terça Negra (negro Tuesday), one of the foremost weekly events in the city. For these participants, self-identifying as

  19. Waterpipe Smoking among College Students in the United States: A Review of the Literature

    Science.gov (United States)

    Grekin, Emily R.; Ayna, Dinah

    2012-01-01

    Objective: To review the literature on college student waterpipe use with a focus on undergraduates in the United States. Participants: Undergraduate students. Methods: Studies were accessed using the databases PubMed, MEDLINE, PsycINFO, and Academic Search Premier. Searches included combinations of the following keywords: "waterpipe," "hookah,"…

  20. A Survey of Speech Education in United States Two-Year Colleges.

    Science.gov (United States)

    Planck, Carolyn Roberts

    The status of speech education in all United States two-year colleges is discussed. Both public and private schools are examined. Two separate studies were conducted, each utilizing the same procedure. The specific aspects with which the research was concerned were: (1) availability of speech courses, (2) departmentalization of speech courses, (3)…

  1. Military, University, and Police Agency Command and Staff Colleges in the United States

    Science.gov (United States)

    Martin, Richard H.

    2017-01-01

    This article discusses three models of command and staff colleges (CSC). Five university models, five United States Military models, and one police agency model are discussed. The 11 CSCs provide leadership development in various training and education programs all leading to the increased capabilities of leaders and potential leaders for public…

  2. Medellín Negro 2014

    OpenAIRE

    Forero Quintero, Gustavo

    2015-01-01

    Medellín Negro es un proyecto académico, editorial, cultural y social desarrollado por el Grupo de Estudios Literarios (GEL) de la Universidad de Antioquia y auspiciado por la Alcaldía de Medellín en el marco de su Fiesta del Libro y la Cultura ; tiene el objetivo de propiciar un espacio urbano de discusión interdisciplinaria y abierto al público en torno al tema del crimen en las sociedades contemporáneas, tomando como eje la literatura negra o, como proponen sus organizadores, la literatura...

  3. Report on the radioactive mineral development project in Negros Island

    International Nuclear Information System (INIS)

    Santos, G. Jr.

    1981-12-01

    A reconnaissance radiometric and stream sediment survey was conducted in Negros Island from April to May 1980. An area in Mabinay, Negros Oriental with significant above-background uranium in stream sediment was delineated in Upper Miocene to Pliocene continental clastic associated with silty limestone. In general, Negros has low radioactivity except for isolated points which have 2-3 times above-the-background radioactivity. Other areas in the western part of the island with high radioactivity and above-normal uranium in stream sediments were delineated. However, these above-normal observations were noted in areas underlain by recent volcanic sediments which were probably derived from Mt. Kanlaon. (author)

  4. Los agujeros negros y las ondas del Doctor Einstein

    OpenAIRE

    Mario Alberto Rodríguez-Meza

    2017-01-01

    Se describen los principales desarrollos científicos que llevaron a la detección de las ondas gravitacionales por el proyecto ligo: la relatividad general, sus predicciones de agujeros negros y ondas gravitacionales, la relatividad numérica y las simulaciones de la colisión y coalescencia de dos agujeros negros y los desarrollos de diversos detectores de ondas gravitacionales. Finalmente la detección de las ondas gravitacionales confirma la existencia de los enigmáticos agujeros negros.

  5. Los agujeros negros y las ondas del Doctor Einstein

    Directory of Open Access Journals (Sweden)

    Mario Alberto Rodríguez-Meza

    2017-01-01

    Full Text Available Se describen los principales desarrollos científicos que llevaron a la detección de las ondas gravitacionales por el proyecto ligo: la relatividad general, sus predicciones de agujeros negros y ondas gravitacionales, la relatividad numérica y las simulaciones de la colisión y coalescencia de dos agujeros negros y los desarrollos de diversos detectores de ondas gravitacionales. Finalmente la detección de las ondas gravitacionales confirma la existencia de los enigmáticos agujeros negros.

  6. Archimboldi: El agujero negro de 2666

    Directory of Open Access Journals (Sweden)

    Felipe Ríos

    2014-12-01

    Full Text Available Este ensayo busca demostrar una hipótesis: que en la obra de Roberto Bolaño el tiempo será asumido como un viaje hacia el caos y la percepción de "desfases" en la estructura cronológica. Dicho enfoque se aplicará concretamente a 2666, la novela donde Bolaño expuso su mayor preocupación por la cuestión temporal, y en especial a "La parte de Archimboldi", donde se evidencia que el escritor alemán no sólo actuaría como un personaje que, debido al hechizo de sus novelas, provoca su ulterior persecución, sino que opera como un verdadero "agujero negro", capaz de fagocitar toda circunstancia estética y vivencial que gire a su alrededor.

  7. La presencia de Negros en la Nordpatagonia. 1779-1837

    Directory of Open Access Journals (Sweden)

    Dora Noemí Martínez de Gorla

    2003-12-01

    Full Text Available This paper studies the juridical and social effects created by the individual assimilation of the slave and freeperson in the Rio Negro and the massive entrance of blacks during the war with Brazil, a historic moment when differences were established between African blacks and American blacks. This distinction was modified with the decree of September 12, 1827, when such distinctions were abolished.//Este trabajo estudia los efectos jurídicos y sociales creados por la asimilación individual del esclavo y de la persona libre en el Rio Negro y la entrada masiva de africanos durante la guerra con Brasil, momento histórico en el que las diferencias entre africanos negros y americanos negros fueron establecidas. Esta distinción fue modificada con el decreto 12 de 1827, cuando se abolieron tales diferencias.

  8. Horizontal and vertical individualism and collectivism among college students in the United States, Taiwan, and Argentina.

    Science.gov (United States)

    Chiou, J S

    2001-10-01

    Among college students in the United States, Taiwan, and Argentina, the author examined the strength of 4 cultural patterns (horizontal collectivism, vertical collectivism, horizontal individualism, vertical individualism; H. C. Triandis, 1995). A 3-group confirmatory factor analysis established the measurement equivalence among the 3 samples before the comparison. The Taiwanese and the Argentine samples were more vertically collectivist than the U.S. sample. The U.S. and the Taiwanese samples were more vertically individualistic than the Argentine sample. The U.S. sample was more horizontally individualistic than the Argentine sample, which, in turn, was more horizontally individualistic than the Taiwanese sample.

  9. Associativismo negro em terras sulinas: das irmandades aos clubes para negros em Pelotas (1820-1943

    Directory of Open Access Journals (Sweden)

    Fernanda Oliveira da Silva

    2011-12-01

    Full Text Available O artigo analisa as associações negras pelotenses que permitiram a constituição de uma identidade negra positiva percebida em relação direta com o contexto relacional vivenciado em âmbito nacional e internacional. Destacamos ainda a busca por um entrelaçamento entre diferentes associações tendo como ponto em comum a identificação racial mediada pela busca por uma posição social diferenciada. Diretamente vinculado ao período do pós-Abolição almejava-se a cidadania em uma sociedade ainda muito preconceituosa racialmente. A delimitação espacial focaliza o estudo na cidade de Pelotas, localizada no extremo sul do Rio Grande do Sul, entre os anos de 1820 a 1943. Tem inicio com a criação da primeira irmandade negra em 1820. Dentre as associações destacamos o surgimento dos clubes sociais negros (1917-1931 e suas atividades em conjunto, com ênfase para o surgimento da Frente Negra Pelotense (1933 e a busca por uma identidade racial que fosse comungada por todo o grupo negro local.

  10. The Association between Mental Health and Violence among a Nationally Representative Sample of College Students from the United States.

    Science.gov (United States)

    Schwartz, Joseph A; Beaver, Kevin M; Barnes, J C

    2015-01-01

    Recent violent attacks on college campuses in the United States have sparked discussions regarding the prevalence of psychiatric disorders and the perpetration of violence among college students. While previous studies have examined the potential association between mental health problems and violent behavior, the overall pattern of findings flowing from this literature remain mixed and no previous studies have examined such associations among college students. The current study makes use of a nationally representative sample of 3,929 college students from the National Epidemiologic Study on Alcohol and Related Conditions (NESARC) to examine the prevalence of seven violent behaviors and 19 psychiatric disorder diagnoses tapping mood, anxiety, personality, and substance use disorders. Associations between individual and composite psychiatric disorder diagnoses and violent behaviors were also examined. Additional analyses were adjusted for the comorbidity of multiple psychiatric diagnoses. The results revealed that college students were less likely to have engaged in violent behavior relative to the non-student sample, but a substantial portion of college students had engaged in violent behavior. Age- and sex-standardized prevalence rates indicated that more than 21% of college students reported at least one violent act. In addition, more than 36% of college students had at least one diagnosable psychiatric disorder. Finally, the prevalence of one or more psychiatric disorders significantly increased the odds of violent behavior within the college student sample. These findings indicate that violence and psychiatric disorders are prevalent on college campuses in the United States, though perhaps less so than in the general population. In addition, college students who have diagnosable psychiatric disorders are significantly more likely to engage in various forms of violent behavior.

  11. Phylogenetic stratigraphy in the Guerrero Negro hypersaline microbial mat.

    Science.gov (United States)

    Harris, J Kirk; Caporaso, J Gregory; Walker, Jeffrey J; Spear, John R; Gold, Nicholas J; Robertson, Charles E; Hugenholtz, Philip; Goodrich, Julia; McDonald, Daniel; Knights, Dan; Marshall, Paul; Tufo, Henry; Knight, Rob; Pace, Norman R

    2013-01-01

    The microbial mats of Guerrero Negro (GN), Baja California Sur, Mexico historically were considered a simple environment, dominated by cyanobacteria and sulfate-reducing bacteria. Culture-independent rRNA community profiling instead revealed these microbial mats as among the most phylogenetically diverse environments known. A preliminary molecular survey of the GN mat based on only ∼1500 small subunit rRNA gene sequences discovered several new phylum-level groups in the bacterial phylogenetic domain and many previously undetected lower-level taxa. We determined an additional ∼119,000 nearly full-length sequences and 28,000 >200 nucleotide 454 reads from a 10-layer depth profile of the GN mat. With this unprecedented coverage of long sequences from one environment, we confirm the mat is phylogenetically stratified, presumably corresponding to light and geochemical gradients throughout the depth of the mat. Previous shotgun metagenomic data from the same depth profile show the same stratified pattern and suggest that metagenome properties may be predictable from rRNA gene sequences. We verify previously identified novel lineages and identify new phylogenetic diversity at lower taxonomic levels, for example, thousands of operational taxonomic units at the family-genus levels differ considerably from known sequences. The new sequences populate parts of the bacterial phylogenetic tree that previously were poorly described, but indicate that any comprehensive survey of GN diversity has only begun. Finally, we show that taxonomic conclusions are generally congruent between Sanger and 454 sequencing technologies, with the taxonomic resolution achieved dependent on the abundance of reference sequences in the relevant region of the rRNA tree of life.

  12. Background and Training Needs of Persistently Unemployed Negroes

    Science.gov (United States)

    Beacham, Herbert C.

    1971-01-01

    The major purpose of the study was to describe the home, educational and occupational back grounds, econmic status, frequency and duration of unemployment of persistently unemployed Negroes in Tampa, Florida, and their expressed opinions about training, retraining, and relocation of their residences to obtain employment after training. (Author)

  13. Guerreiro Ramos: o personalismo negro Guerreiro Ramos: black personalism

    Directory of Open Access Journals (Sweden)

    Muryatan Santana Barbosa

    2006-11-01

    Full Text Available Baseando-se em pesquisa recém-finalizada sobre a trajetória intelectual do sociólogo Alberto Guerreiro Ramos (1915-1982 (cf. Barbosa, 2004, este ensaio apresenta a filosofia política do personalismo negro, cerne do pensamento de Guerreiro Ramos acerca do negro brasileiro e mundial. Ademais, tratar-se-á de estabelecer, sucintamente, a proximidade de tal visão humanista do negro com recentes perspectivas multiculturalistas e pós-coloniais, a fim de mostrar a contemporaneidade desta contribuição de Guerreiro Ramos à teoria social e à práxis dos movimentos negros.As a result of nearly a finished research about the intellectual performance of the sociologist Alberto Guerreiro Ramos (1915-1982, this paper envisages the political philosophy of black personalism. This was the kern of Guerreiro Ramos thought about Brazilian and World-dimensioned Black. An attempt is made to connect this humanistic vision of Blackmen with recent multiculturalist and postcolonial visions, in order to point out the present day contribution of Guerreiro Ramos to social theory and praxis of Black movements.

  14. When Iron Crumbles: Berlin and the Wall. A Social Studies Unit Recommended for Grades 9-12 and Community College.

    Science.gov (United States)

    Chan, Adrian; And Others

    This unit, designed for use with high school and community college students, uses primary materials, literature, and interactive lesson plans to present the city of Berlin (Germany) as a case study of some of the 20th century's most significant events. In lesson 1, students take a pre-test, view a video about the Berlin Wall, and discuss the kinds…

  15. The Relationship between Sexist Naming Practices and Athletic Opportunities at Colleges and Universities in the Southern United States

    Science.gov (United States)

    Pelak, Cynthia Fabrizio

    2008-01-01

    This research examines the phenomenon of sexist naming of women's athletic teams at four-year colleges and universities in the southern United States. Drawing on theoretical and methodological insights from feminist scholarship on gender and sports, gendered language, and intersecting systems of race and gender inequalities, the author analyzes…

  16. Conceptions of Power among Senior Women Administrators at Liberal Arts Colleges in the Upper Midwestern United States

    Science.gov (United States)

    Enke, Kathryn

    2014-01-01

    Women are underrepresented in senior-level leadership positions in higher education institutions, and their experiences are underrepresented in research about leadership and power in higher education. This qualitative study engaged women senior administrators at liberal arts colleges in the Upper Midwestern United States to better understand how…

  17. The Development of an Individualized Instructional Program in Beginning College Mathematics Utilizing Computer Based Resource Units. Final Report.

    Science.gov (United States)

    Rockhill, Theron D.

    Reported is an attempt to develop and evaluate an individualized instructional program in pre-calculus college mathematics. Four computer based resource units were developed in the areas of set theory, relations and function, algebra, trigonometry, and analytic geometry. Objectives were determined by experienced calculus teachers, and…

  18. Relationships Between Centralization/Decentralization and Organizational Effectiveness in Urban Multi-Unit Community College Systems. A Summary Report.

    Science.gov (United States)

    Jenkins, John A.; Rossmeier, Joseph G.

    In January 1972, 3,320 faculty members and administrators at 12 urban multicampus community college districts were asked to indicate their perceptions of the distribution of decision-making authority and influence among six organizational levels (the board of trustees, the district administration, the unit administration, deans, department…

  19. Pamplin College partners with Deloitte to prepare students for sweeping changes to United States accounting profession

    OpenAIRE

    Ho, Sookhan

    2008-01-01

    Virginia Tech's Pamplin College of Business is one of two schools selected to partner with audit and consulting firm Deloitte to develop much needed college accounting curricula on the International Financial Reporting Standards (IFRS).

  20. A poesia ‘é-sou’ negra = Negro poetry

    Directory of Open Access Journals (Sweden)

    José Pires Laranjeira

    2010-01-01

    Full Text Available Os diversos cânones da poesia brasileira não contemplam a poesia negrobrasileira como deveria ser. Sendo o poeta Luiz Gama ainda hoje menosprezado, em comparação com Castro Alves, é necessário, pois, colocá-lo no seu verdadeiro lugar de significação. Porém, esse esforço deve servir também para compreender que Gama, na sua poesia, ainda mostra alguma conformidade com certos preconceitos rácicos próprios do século XIX e que se encontram, por exemplo, em poetas angolanos. Já o poeta Solano Trindade, devido à sua formação ideologicamente comprometida com os pobres e miseráveis da sociedade, trata o negro como um ser social, econômico e cultural de corpointeiro, concepção aprofundada por Cuti, que, finalmente, deixa de apelidar o mestiço de mulato, segundo a conformidade com o Movimento Negro. Por outro lado, é um poeta da modernidade mais avançada, quer formalmente, quer atingindo o âmago do subconsciente negro, ao versar o seu sofrimento íntimo, de modo inédito. Brazilian poetry’s several literary canons fail to fully investigate Brazilian Black Poetry as it should be. In spite of the fact that the poet Luiz Gama is currently not in the limelight when compared to Castro Alves, the replacing of his real place of significance is actually worthwhile. This effort should also be needed to understand that Gama in his poetry shows a type of conformity with certain racial bias common in the 19th century as, for example, in the poetry of Angola. On the other hand, due to his ideologically committed ideology with the poor and destitute in society, the poet Solano Trindade deals with the Negro as a social, economical and cultural person. This concept is partook by Cuti who, at long last, do not call the half-breed as ‘mulato’, following orientations of the Negro Movement. On the other hand, he is formally poet featuring themost advanced modernity as he reaches the heart of the Negro subconscious in his singing of deep

  1. Alcohol policies and practices among four-year colleges in the United States: prevalence and patterns.

    Science.gov (United States)

    Lenk, Kathleen M; Erickson, Darin J; Nelson, Toben F; Winters, Ken C; Toomey, Traci L

    2012-05-01

    The purpose of this study was to assess the prevalence of college alcohol policies and practices and to identify patterns of policies/practices across colleges. An online survey of administrators at a random sample of 351 4-year U.S. colleges was conducted in 2008. The prevalence of 31 alcohol policies and practices was assessed as well as differences across size and type of colleges. Latent class analyses identified classes of colleges based on their alcohol policies/practices. The majority of colleges prohibit alcohol use at sporting events, whereas less than half prohibit alcohol use at fraternity and sorority events. Less than half of the colleges also prohibit alcohol advertising in/on campus newspapers and radio stations. Small colleges are more likely than large colleges to prohibit alcohol use at tailgating events and to prohibit newspaper alcohol advertising. Public colleges are more likely than private colleges to prohibit alcohol use in dorms but less likely to prohibit alcohol advertising. We identified four classes of colleges-the largest class (38%) was characterized by having many alcohol policies/practices, the smallest class (13%) had none or few alcohol policies/practices, and the remainder fit into two middle classes that had certain policies/practices in place but lacked others. Most colleges report implementing some alcohol policies/ practices but are lacking others. Only two of every five colleges fit into a class that has many alcohol policies. More studies are needed to validate our findings and assess whether certain policies/practices and patterns of policies are associated with reducing student alcohol consumption and related problems.

  2. Buracos negros primordiais e astrofísica observacional

    Science.gov (United States)

    Custódio, P. S.; Horvath, J. E.

    2003-02-01

    A história da física contemporânea é pródiga em grandes descobertas (a Relatividade e a Mecânica Quântica entre as mais importantes) até meados dos anos '30. O peso destes desenvolvimentos é tão grande que outros feitos de grande porte (por exemplo, a teoria da nucleossíntese nas estrelas) são geralmente considerados como "filhotes" dos primeiros, ao menos na imaginação popular. Porém, algumas exceções à regra não-escrita são dignas de menção. Entre estas últimas está a descoberta por S.W.Hawking e colaboradores das propriedades de emissão dos buracos negros, trabalho que iniciou uma disciplina com vida própria denominada Termodinâmica de Buracos Negros.

  3. Negros y pardos en Buenos Aires, 1811-1860

    Directory of Open Access Journals (Sweden)

    Rosal, Miguel Ángel

    1994-06-01

    Full Text Available Not available.

    El presente es un sucinto estudio sobre diversos aspectos relacionados con la esclavitud en Buenos Aires durante el período independiente y hasta su total extinción. En ese sentido analizaremos: 1 Los hitos del proceso abolicionista (y los retrocesos que sufrió el mismo. 2 La compraventa de esclavos y las cartas de libertad. 3 Los afroporteños propietarios (tanto de inmuebles como de esclavos. 4 Las "naciones africanas". 5 La esclavitud en la secesionista Buenos Aires de 1853 a 1860. El análisis de algunos de estos temas nos permitirá hacer comparaciones con la situación del negro porteño durante la época hispánica, sobre la cual hemos realizado una tesis doctoral titulada "Negros y pardos en Buenos Aires (1750-1820" y publicado algunos artículos en diversas revistas especializadas.

  4. Geophysical investigations of magma plumbing systems at Cerro Negro volcano, Nicaragua

    OpenAIRE

    MacQueen, Patricia Grace

    2013-01-01

    Cerro Negro near Léon, Nicaragua is a very young (163 years), relatively small basaltic cinder cone volcano that has been unusually active during its short lifespan (recurrence interval 6-7 years), presenting a significant hazard to nearby communities. Previous studies have raised several questions as to the proper classification of Cerro Negro and its relation to neighboring Las Pilas-El Hoyo volcano. Analysis of Bouguer gravity data collected at Cerro Negro has revealed connected positive d...

  5. Assessment of full-time faculty preceptors by colleges and schools of pharmacy in the United States and Puerto Rico.

    Science.gov (United States)

    Kirschenbaum, Harold L; Zerilli, Tina

    2012-10-12

    To identify the manner in which colleges and schools of pharmacy in the United States and Puerto Rico assess full-time faculty preceptors. Directors of pharmacy practice (or equivalent title) were invited to complete an online, self-administered questionnaire. Seventy of the 75 respondents (93.3%) confirmed that their college or school assessed full-time pharmacy faculty members based on activities related to precepting students at a practice site. The most commonly reported assessment components were summative student evaluations (98.5%), type of professional service provided (92.3%), scholarly accomplishments (86.2%), and community service (72.3%). Approximately 42% of respondents indicated that a letter of evaluation provided by a site-based supervisor was included in their assessment process. Some colleges and schools also conducted onsite assessment of faculty members. Most colleges and schools of pharmacy assess full-time faculty-member preceptors via summative student assessments, although other strategies are used. Given the important role of preceptors in ensuring students are prepared for pharmacy practice, colleges and schools of pharmacy should review their assessment strategies for full-time faculty preceptors, keeping in mind the methodologies used by other institutions.

  6. ¿Qué pasa con el Pacífico Negro en el Atlántico Negro?. El Atlántico Negro de Paul Gilroy frente a los acontecimientos (afrocolombianos

    Directory of Open Access Journals (Sweden)

    Lioba Rossbach de Olmos

    2009-01-01

    Full Text Available El presente artículo presenta una critica al Atlántico Negro ("The Black Atlantic" y a Paul Gilroy como representante de los estudios culturales desde un punto de vista antropológico y empírico usando como ejemplo la reciente dinámica política de Colombia. Especialmente en el "Pacífico Negro" colombiano se están constituyendo (nuevas identidades étnicas negras. La nueva constitución de 1991 y una serie de disposiciones legales favorables contribuyen a que el "Pacifico Negro" se presenta como antítesis del Atlántico Negro de Gilroy.

  7. A marca de origem: comparando colleges norte-americanos e faculdades brasileiras The mark of origin: a comparison between colleges in the United States and faculdades in Brazil

    Directory of Open Access Journals (Sweden)

    Arabela Campos Oliven

    2005-05-01

    Full Text Available Colleges nos Estados Unidos e faculdades no Brasil existiam antes da criação de universidades. Instituições radicalmente diferentes, têm marcado profundamente o desenvolvimento da educação superior nos dois países. O college nasceu privado, mais ligado ao seu Board of Trustees (Conselho de Curadores do que à Coroa Inglesa, e com profunda orientação religiosa. As primeiras faculdades no Brasil, criadas por Dom João VI, seguiam o modelo das Grandes Escolas Francesas: eram instituições seculares, de formação de profissionais. Seus professores costumavam ser médicos de renome que se dedicavam tangencialmente às atividades docentes. Nos Estados Unidos, os professores moravam nos colleges com os estudantes e assumiam a responsabilidade na formação do caráter de seus alunos, estando no lugar dos pais (in loco parentis. Este trabalho traça um paralelo entre a educação superior nos Estados Unidos e no Brasil, dando ênfase à influência do modelo de origem no desenvolvimento dos dois sistemas. Procura mostrar como o exemplo das instituições fundantes se constitui em marca indelével, presente nos períodos tanto de continuidade como nos de mudança dos sistemas.Colleges in the United States and faculdades in Brazil were the first higher education institutions in those countries which existed before universities. These two old and traditional institutions, radically different from each other, have marked deeply the development of higher education in both countries. Most colleges were private from the beginning, they used to be more dependent on their Board of Trustees than on the English Crown, having also a profound religious orientation. The first faculdades in Brazil were founded by Dom João VI, Prince Regent, in the beginning of the XIX century, almost two hundred years latter than Harvard. They followed the French Great Schools model: were lay institutions, with a strong professional orientation. Their professors used to

  8. The igapó of the Negro River in central Amazonia: Linking late-successional inundation forest with fluvial geomorphology

    Science.gov (United States)

    Montero, Juan Carlos; Latrubesse, Edgardo M.

    2013-10-01

    Despite important progress on Amazonian floodplain research, the flooded forest of the Negro River "igapó" has been little investigated. In particular, no study has previously focused the linkage between fluvial geomorphology and the floristic variation across the course of the river. In this paper we describe and interpret relations between igapó forest, fluvial geomorphology and the spatial evolution of the igapó forest through the Holocene. Therefore, we investigate the effect of geomorphological units of the floodplain and channel patterns on tree diversity, composition and structural parameters of the late-successional igapó forest. Our results show that sites sharing almost identical flooding regime, exhibit variable tree assemblages, species richness and structural parameters such as basal area, tree density and tree heights, indicating a trend in which the geomorphologic styles seem to partially control the organization of igapó's tree communities. This can be also explained by the high variability of well-developed geomorphologic units in short distances and concentrated in small areas. In this dynamic the inputs from the species pool of tributary rivers play a crucial role, but also the depositional and erosional processes associated with the evolution of the floodplain during the Holocene may control floristic and structural components of the igapó forests. These results suggest that a comprehensive approach integrating floristic and geomorphologic methods is needed to understand the distribution of the complex vegetation patterns in complex floodplains such as the igapó of the Negro River. This combination of approaches may introduce a better comprehension of the temporal and spatial evolutionary analysis and a logic rationale to understand the vegetation distribution and variability in function of major landforms, soil distributions and hydrology. Thus, by integrating the past into macroecological analyses will sharpen our understanding of the

  9. Gendered transitions to adulthood by college field of study in the United States

    OpenAIRE

    Siqi Han; Dmitry Tumin; Zhenchao Qian

    2016-01-01

    Background: Field of study may influence the timing of transitions to the labor market, marriage, and parenthood among college graduates. Research to date has yet to study how field of study is associated with the interweaving of these transitions in the USA. Objective: The current study examines gendered influences of college field of study on transitions to a series of adult roles, including full-time work, marriage, and parenthood. Methods: We use Cox proportional hazards models and ...

  10. Traumatic Brain and Spinal Cord Fatalities Among High School and College Football Players - United States, 2005-2014.

    Science.gov (United States)

    Kucera, Kristen L; Yau, Rebecca K; Register-Mihalik, Johna; Marshall, Stephen W; Thomas, Leah C; Wolf, Susanne; Cantu, Robert C; Mueller, Frederick O; Guskiewicz, Kevin M

    2017-01-06

    An estimated 1.1 million high school and 75,000 college athletes participate in tackle football annually in the United States. Football is a collision sport; traumatic injuries are frequent (1,2), and can be fatal (3). This report updates the incidence and characteristics of deaths caused by traumatic brain injury and spinal cord injury (4) in high school and college football and presents illustrative case descriptions. Information was analyzed from the National Center for Catastrophic Sport Injury Research (NCCSIR). During 2005-2014, a total of 28 deaths (2.8 deaths per year) from traumatic brain and spinal cord injuries occurred among high school (24 deaths) and college football players (four deaths) combined. Most deaths occurred during competitions and resulted from tackling or being tackled. All four of the college deaths and 14 (58%) of the 24 high school deaths occurred during the last 5 years (2010-2014) of the 10-year study period. These findings support the need for continued surveillance and safety efforts (particularly during competition) to ensure proper tackling techniques, emergency planning for severe injuries, availability of medical care onsite during competitions, and assessment that it is safe to return to play following a concussion.

  11. Parental Influence, Youth Contra-Culture and Rural Adolescent Attitudes Toward Negroes.

    Science.gov (United States)

    Hough, Richard L.; And Others

    High school students and heads of households in rural areas of Illinois were studied with respect to their attitudes toward Negroes. The hypothesis used was that a youth subculture or "contra-culture" did serve as an important socializing agent in forming the attitudes of students toward Negroes. Results indicated that there was only…

  12. The Image of the Negro in Deep South Public School State History Texts.

    Science.gov (United States)

    McLaurin, Melton

    This report reviews the image portrayed of the Negro, in textbooks used in the deep South. Slavery is painted as a cordial, humane system under kindly masters and the Negro as docile and childlike. Although the treatment of the modern era is relatively more objective, the texts, on the whole, evade treatment of the Civil Rights struggle, violence,…

  13. Geophysical Investigations of Magma Plumbing Systems at Cerro Negro Volcano, Nicaragua

    Science.gov (United States)

    MacQueen, Patricia Grace

    Cerro Negro near Leon, Nicaragua is a very young (163 years), relatively small basaltic cinder cone volcano that has been unusually active during its short lifespan (recurrence interval 6--7 years), presenting a significant hazard to nearby communities. Previous studies have raised several questions as to the proper classification of Cerro Negro and its relation to neighboring Las Pilas-El Hoyo volcano. Analysis of Bouguer gravity data collected at Cerro Negro has revealed connected positive density anomalies beneath Cerro Negro and Las Pilas-El Hoyo. These findings suggest that eruptions at Cerro Negro may be tapping a large magma reservoir beneath Las Pilas-El Hoyo, implying that Cerro Negro should be considered the newest vent on the Las Pilas-El Hoyo volcanic complex. As such, it is possible that the intensity of volcanic hazards at Cerro Negro may eventually increase in the future to resemble those pertaining to a stratovolcano. Keywords: Cerro Negro; Las Pilas-El Hoyo; Bouguer gravity; magmatic plumbing systems; potential fields; volcano.

  14. Nineteenth-Century Racism: The Anthropologist Who First Defined the Negro's Place in Nature.

    Science.gov (United States)

    Journal of Blacks in Higher Education, 2001

    2001-01-01

    Presents excerpts from an 1863 address by British anthropologist James Hunt to the Anthropological Society of London. Hunt's paper, "The Negro's Place in Nature," has been called the most important document in an era that laid the foundation for scientific racism. In it, Hunt suggested that physical characteristics of the Negro race were related…

  15. On-the-Job Orientation of Unemployed Negro Skill Center Trainees and Their Supervisors. Final Report.

    Science.gov (United States)

    Rosen, Hjalmar

    The problems inherent in employing hard-core unemployed Negroes and the optimal locus of on-the-job orientation to integrate such employees into thework force were subjects of this study. It focused on young Negro females who, because of their inability to meet selections minimums for job entry, had a high potential for chronic unemployment. Among…

  16. Prevalence and Mental Health Treatment of Suicidal Ideation and Behavior Among College Students Aged 18-25 Years and Their Non-College-Attending Peers in the United States.

    Science.gov (United States)

    Han, Beth; Compton, Wilson M; Eisenberg, Daniel; Milazzo-Sayre, Laura; McKeon, Richard; Hughes, Art

    2016-06-01

    College students have been the focus of many studies on suicidal ideation with or without suicidal behavior. Little attention has been given to their non-college-attending peers on these issues. We examined the 12-month prevalence and mental health treatment of suicidal ideation with or without suicidal behavior among college students aged 18-25 years and their non-college-attending peers in the United States. We assessed data from 135,300 persons aged 18-25 years who participated in the 2008-2013 National Surveys on Drug Use and Health. Descriptive analyses and multivariate logistic regression models were applied. Compared with full-time college students, high school students, those not enrolled in a school or college, and part-time college students were more likely to attempt suicide with a plan (model-adjusted prevalence = 0.67% vs 1.09%, 1.06%, and 1.07%, respectively). The mental health treatment rate among full-time college students with suicidal ideation with or without suicidal behavior was similar to the rates among the other 3 counterparts. The effects of race/ethnicity and serious mental illness on receipt of mental health treatment were significantly larger among those who did not perceive unmet treatment need than among those who perceived unmet treatment need (P = .019 and P = .001, respectively). Compared to full-time college students, non-college-attending young adults and part-time college students were at higher risk for attempting suicide with a plan. Suicide prevention and intervention strategies should emphasize increasing access to mental health treatment among both college students with suicidal ideation with or without suicidal behavior and their non-college-attending peers (particularly among minorities and those who seem to be at low risk because they are without serious mental illness and report no need for mental health treatment). © Copyright 2016 Physicians Postgraduate Press, Inc.

  17. Metalogénesis de la veta Farallón Negro rama norte, Farallón Negro, provincia de Catamarca

    OpenAIRE

    Martínez, Facundo; Fogliata, Ana; Montenegro, Nicolás; Hagemann, Steffen

    2014-01-01

    La veta Farallón Negro Rama Norte forma parte del yacimiento Farallón Negro ubicado en Hualfín, Departamento Belén, Catamarca. Este yacimiento se encuentra dentro del Complejo Volcánico Farallón Negro de edad terciaria, que constituye la roca de caja de un sistema de vetas rico en oro. La veta Farallón Negro Rama Norte tiene rumbo general N40°O e inclinación de 65° NE, tiene una corrida de 600 m, y se extiende desde la superficie hasta unos 400 m en profundidad. La roca de caja es una monzoni...

  18. A Cross-cultural Comparison of Interpersonal Violence in the Lives of College Students from Two Colleges from The Bahamas and the United States of America

    Directory of Open Access Journals (Sweden)

    William J. Fielding

    2014-10-01

    Full Text Available There is a dearth of studies that compare interpersonal violence cross nationally. This paper reports the findings of a cross-sectional study which compares and contrasts violence in the lives of 740 college students, as children and as adults, in The Bahamas and the United States of America. Overall, students in The Bahamas were subjected to more violence (more frequently spanked than their American counterparts. Frequency of spanking when the student was a preteen and teenager were linked to anger outbursts in adulthood, and higher numbers of anger outbursts were linked with violent behaviours of students. Although Bahamian students were exposed to more violence than the American students, this did not result in Bahamian students being more violent than American students in interpersonal relationships. However, Bahamian students were more likely than American students to anticipate using corporal punishment on their children and to condone violence in marital relationships.

  19. College Students’ Perceptions of Intimate Partner Violence: A Comparative Study of Japan, China, and the United States

    Directory of Open Access Journals (Sweden)

    Toan Thanh Nguyen

    2013-11-01

    Full Text Available An investigation of cross-cultural differences between the United States, Japan, and China in perceptions of male to female intimate partner violence, and in the extent to which gender and traditional attitudes toward women related to these perceptions. College students (n = 943 read two fictitious scenarios describing marital and dating violence. MANOVA results showed gender differences in the perceptions of violence between the three countries. Male participants had more traditional attitudes toward women and placed more blame on female victims. The magnitude of the difference between women’s and men’s scores was much smaller for Japanese students than for American and Chinese students. Hierarchical multiple regression analyses demonstrated that the effects of respondent gender were reduced when traditional attitudes toward women were taken into account. Differences in beliefs about appropriate gender roles still exist among college students in these countries and may be related to socially tolerant attitudes toward violence against women.

  20. Status of Undergraduate Pharmacology Laboratories in Colleges of Pharmacy in the United States

    Science.gov (United States)

    Katz, Norman L.; And Others

    1978-01-01

    U.S. colleges of pharmacy were surveyed in 1976 to determine whether a trend exists in continuing, discontinuing, or restructuring laboratory time in pharmaceutical education. Data regarding core undergraduate pharmacology courses, undergraduate pharmacology laboratory status, and pharmacology faculty are presented. (LBH)

  1. Equine Education Programs and Related Studies as Found in Colleges and Universities in the United States.

    Science.gov (United States)

    Parmenter, Carol L. W.

    The purpose of this study was to determine the nature and scope of equine education programs being offered in the colleges and universities throughout the country and the attitudes of specialists toward these programs. The paper is organized into five major categories: (1) introduction, statement of purpose, design and scope of the study, and…

  2. Content Analysis of Conceptually Based Physical Education in Southeastern United States Universities and Colleges

    Science.gov (United States)

    Williams, Suzanne Ellen; Greene, Leon; Satinsky, Sonya; Neuberger, John

    2016-01-01

    Purpose: The purposes of this study were to explore PE in higher education through the offering of traditional activity- and skills-based physical education (ASPE) and conceptually-based physical education (CPE) courses, and to conduct an exploratory content analysis on the CPE available to students in randomized colleges and universities in the…

  3. Characteristics of Jesuit Colleges and Universities in the United States: A Reciprocal Interdependence Analysis

    Science.gov (United States)

    LaBelle, Jeffrey; Kendall, Daniel

    2016-01-01

    What common values do diverse Jesuit institutions share? In what ways are Jesuit colleges and universities working to maintain mission, identity, and traditions within the context of 21st-century higher education? To ground their response to these questions, the researchers first review the historical and ecclesial developments that have…

  4. Gendered transitions to adulthood by college field of study in the United States

    Directory of Open Access Journals (Sweden)

    Siqi Han

    2016-09-01

    Full Text Available Background: Field of study may influence the timing of transitions to the labor market, marriage, and parenthood among college graduates. Research to date has yet to study how field of study is associated with the interweaving of these transitions in the USA. Objective: The current study examines gendered influences of college field of study on transitions to a series of adult roles, including full-time work, marriage, and parenthood. Methods: We use Cox proportional hazards models and multinomial logistic regression to examine gendered associations between field of study and the three transitions among college graduates of the NLSY97 (National Longitudinal Survey of Youth cohort. Results: Men majoring in STEM achieve early transitions to full-time work, marriage, and parenthood; women majoring in STEM show no significant advantage in finding full-time work and delayed marriage and childbearing; women in business have earlier transitions to full-time work and marriage than women in other fields, demonstrating an advantage similar to that of men in STEM. Conclusions: The contrast between men and women in STEM shows that transition to adulthood remains gendered; the contrast between women in STEM and women in business illustrates that a prestigious career may not necessarily delay family formation. Contribution: The paper shows how stratification by field of study creates gendered demographic outcomes for college graduates. It also demonstrates that women's decisions regarding marriage and parenthood do not uniformly respond to the economic prospect of their work.

  5. International Comparisons of Inclusive Instruction among College Faculty in Spain, Canada, and the United States

    Science.gov (United States)

    Lombardi, Allison; Vukovic, Boris; Sala-Bars, Ingrid

    2015-01-01

    Across the globe, students with disabilities have been increasing in prevalence in higher education settings. Thus, it has become more urgent for college faculty to have a broad awareness of disability and inclusive teaching practices based on the tenets of Universal Design. In this study, we examined faculty attitudes toward disability-related…

  6. ADHD symptomatology, fear of intimacy, and sexual anxiety and behavior among college students in China and the United States.

    Science.gov (United States)

    Marsh, Lyndsey E; Norvilitis, Jill M; Ingersoll, Travis S; Li, Bin

    2015-03-01

    ADHD is marked by an apparent contradiction in social relationships: Those with the disorder have more difficulty establishing close relationships but report increased rates of risky sexual behavior. Two studies examined the relationship between ADHD symptomatology and fear of intimacy, sexual anxiety, and sexual behavior in college students. In the first study, college students in China (n = 300) and the United States (n = 233) completed a series of questionnaires. In the second, 192 American college students completed a follow-up series of measures. In the first study, those with more ADHD symptoms did not report lower levels of sexual anxiety but did report greater fear of intimacy. In the second, students partially replicated the results of the first study, reporting greater fear of intimacy in those with more symptoms of ADHD. Those with more symptoms also reported lower expectations for the intimacy in their relationships and lower levels of relationship self-competence on one of four domains. ADHD symptomatology, particularly inattention, was related to multiple aspects of risky sexual behavior. © 2012 SAGE Publications.

  7. Connected magma plumbing system between Cerro Negro and El Hoyo Complex, Nicaragua revealed by gravity survey

    Science.gov (United States)

    MacQueen, Patricia; Zurek, Jeffrey; Williams-Jones, Glyn

    2016-11-01

    Cerro Negro, near León, Nicaragua is a young, relatively small basaltic cinder cone volcano that has been unusually active during its short lifespan. Multiple explosive eruptions have deposited significant amounts of ash on León and the surrounding rural communities. While a number of studies investigate the geochemistry and stress regime of the volcano, subsurface structures have only been studied by diffuse soil gas surveys. These studies have raised several questions as to the proper classification of Cerro Negro and its relation to neighboring volcanic features. To address these questions, we collected 119 gravity measurements around Cerro Negro volcano in an attempt to delineate deep structures at the volcano. The resulting complete Bouguer anomaly map revealed local positive gravity anomalies (wavelength 0.5 to 2 km, magnitude +4 mGal) and regional positive (10 km wavelength, magnitudes +10 and +8 mGal) and negative (12 and 6 km wavelength, magnitudes -18 and -13 mGal) Bouguer anomalies. Further analysis of these gravity data through inversion has revealed both local and regional density anomalies that we interpret as intrusive complexes at Cerro Negro and in the Nicaraguan Volcanic Arc. The local density anomalies at Cerro Negro have a density of 2700 kg m-3 (basalt) and are located between -250 and -2000 m above sea level. The distribution of recovered density anomalies suggests that eruptions at Cerro Negro may be tapping an interconnected magma plumbing system beneath El Hoyo, Cerro La Mula, and Cerro Negro, and more than seven other proximal volcanic features, implying that Cerro Negro should be considered the newest cone of a Cerro Negro-El Hoyo volcanic complex.

  8. Contemporary Slums of India from a Geographic Perspective: A Three-Day College Unit. Fulbright-Hays Summer Seminars Abroad, 1997 (India).

    Science.gov (United States)

    Orf, Thomas M.

    This paper contains a course outline for a teaching and learning unit to examine India's slums from a geographic perspective. Students in a college freshman and sophomore Human Geography class will discuss the problems and prospects of these slums. The unit is divided into three parts: (1) background information examining the slums from a…

  9. Beliefs and Attitudes Associated With Hookah Smoking Among a United States College Population.

    Science.gov (United States)

    Martinasek, Mary P; Haddad, Linda G; Wheldon, Christopher W; Barnett, Tracey E

    2017-03-01

    This study explores the differences among smokers of waterpipe tobacco in a college population to better inform campaigns to curb waterpipe use. Participants included undergraduate and graduate students attending a liberal arts university in Florida. E-mail-based, cross-sectional surveys were collected in 2 sequential years. The majority of respondents (64%) reported having ever smoked a hookah, even if just 1-2 puffs. Of those who had ever smoked a hookah, 34% reported smoking a hookah within the previous 30 d. Constructs from the theory of reasoned action were all correlated with smoking behavior. The range of beliefs endorsed by smokers were more strongly associated with hookah-related attitudes compared with subjective norms. Concerns about health were stronger among never-smokers. Young adult college students continue to engage in waterpipe tobacco smoking at high rates. Campaigns need to focus on subsets of smokers and nonsmokers, independently. Copyright © 2017 by Daedalus Enterprises.

  10. O negro no cinema brasileiro: O período silencioso

    Directory of Open Access Journals (Sweden)

    Noel dos Santos Carvalho

    2003-01-01

    Full Text Available Este artigo trata da participação do negro no cinema brasileiro no período de 1898 até os anos 1920. Seu objetivo é: 1 contextualizar o cinema no Brasil em relação à problemática vivida pela população negra no período pós-abolicionista; 2 descrever, ainda que sucintamente, os filmes que trazem representações sobre o negro brasileiro, 3 discutir as representações do negro em cinco filmes.

  11. Adequacy of depression treatment among college students in the United States.

    Science.gov (United States)

    Eisenberg, Daniel; Chung, Henry

    2012-01-01

    There is no published evidence on the adequacy of depression care among college students and how this varies by subpopulations and provider types. We estimated the prevalence of minimally adequate treatment among students with significant past-year depressive symptoms. Data were collected via a confidential online survey of a random sample of 8488 students from 15 colleges and universities in the 2009 Healthy Minds Study. Depressive symptoms were assessed by the Patient Health Questionnaire-2, adapted to a past-year time frame. Students with probable depression were coded as having received minimally adequate depression care based on the criteria from Wang and colleagues (2005). Minimally adequate treatment was received by only 22% of depressed students. The likelihood of minimally adequate treatment was similarly low for both psychiatric medication and psychotherapy. Minimally adequate care was lower for students prescribed medication by a primary care provider as compared to a psychiatrist (Pstudents were less likely to receive depression care (Pdepression care is a significant problem in the college population. Solutions will likely require greater availability of psychiatry care, better coordination between specialty and primary care using collaborative care models, and increased efforts to retain students in psychotherapy. Copyright © 2012 Elsevier Inc. All rights reserved.

  12. Gendered transitions to adulthood by college field of study in the United States.

    Science.gov (United States)

    Han, Siqi; Tumin, Dmitry; Qian, Zhenchao

    2016-01-01

    Field of study may influence the timing of transitions to the labor market, marriage, and parenthood among college graduates. Research to date has yet to study how field of study is associated with the interweaving of these transitions in the USA. The current study examines gendered influences of college field of study on transitions to a series of adult roles, including full-time work, marriage, and parenthood. We use Cox proportional hazards models and multinomial logistic regression to examine gendered associations between field of study and the three transitions among college graduates of the NLSY97 (National Longitudinal Survey of Youth) cohort. Men majoring in STEM achieve early transitions to full-time work, marriage, and parenthood; women majoring in STEM show no significant advantage in finding full-time work and delayed marriage and childbearing; women in business have earlier transitions to full-time work and marriage than women in other fields, demonstrating an advantage similar to that of men in STEM. The contrast between men and women in STEM shows that transition to adulthood remains gendered; the contrast between women in STEM and women in business illustrates that a prestigious career may not necessarily delay family formation.

  13. Gendered transitions to adulthood by college field of study in the United States

    Science.gov (United States)

    Han, Siqi; Tumin, Dmitry; Qian, Zhenchao

    2017-01-01

    BACKGROUND Field of study may influence the timing of transitions to the labor market, marriage, and parenthood among college graduates. Research to date has yet to study how field of study is associated with the interweaving of these transitions in the USA. OBJECTIVE The current study examines gendered influences of college field of study on transitions to a series of adult roles, including full-time work, marriage, and parenthood. METHODS We use Cox proportional hazards models and multinomial logistic regression to examine gendered associations between field of study and the three transitions among college graduates of the NLSY97 (National Longitudinal Survey of Youth) cohort. RESULTS Men majoring in STEM achieve early transitions to full-time work, marriage, and parenthood; women majoring in STEM show no significant advantage in finding full-time work and delayed marriage and childbearing; women in business have earlier transitions to full-time work and marriage than women in other fields, demonstrating an advantage similar to that of men in STEM. CONCLUSIONS The contrast between men and women in STEM shows that transition to adulthood remains gendered; the contrast between women in STEM and women in business illustrates that a prestigious career may not necessarily delay family formation. PMID:29075146

  14. Sedimentology and Palynostratigraphy of a Pliocene-Pleistocene (Piacenzian to Gelasian) deposit in the lower Negro River: Implications for the establishment of large rivers in Central Amazonia

    Science.gov (United States)

    Soares, Emílio Alberto Amaral; D'Apolito, Carlos; Jaramillo, Carlos; Harrington, Guy; Caputo, Mario Vicente; Barbosa, Rogério Oliveira; Bonora dos Santos, Eneas; Dino, Rodolfo; Gonçalves, Alexandra Dias

    2017-11-01

    The Amazonas fluvial system originates in the Andes and runs ca. 6700 km to the Atlantic Ocean, having as the main affluent the Negro River (second largest in water volume). The Amazonas transcontinental system has been dated to the late Miocene, but the timing of origin and evolutionary processes of its tributaries are still poorly understood. Negro River alluvial deposits have been dated to the middle to late Pleistocene. Recently, we studied a number of boreholes drilled for the building of a bridge at the lower course of the Negro River. A thin (centimetric) sedimentary deposit was found, laterally continuous for about 1800 m, unconformably overlaying middle Miocene strata and unconformably overlain by younger Quaternary deposits. This deposit consists predominantly of brownish-gray sandstones cemented by siderite and with subordinate mudstone and conglomerate beds. Palynological, granulometric, textural and mineralogical data suggest that the initial Negro River aggradation took place in the deep incised valley under anoxic conditions and subsequently along the floodplain, with efficient transport of mixed origin particles (Andean and Amazonic). Angiosperm leaves, wood and pollen are indicative of a tropical continental palaeoenvironment. A well preserved palynoflora that includes Alnipollenites verus, Grimsdalea magnaclavata and Paleosantalaceaepites cingulatus suggests a late Pliocene to early Pleistocene (Piacenzian to Gelasian) age for this unit, which was an age yet unrecorded in the Amazon Basin. These results indicate that by the late Pliocene-early Pleistocene, large scale river activity was occurring in Central Amazonia linking this region with the Andean headwaters, and therefore incompatible with Central Amazonia barriers like the Purus arch.

  15. Pyomyositis in the upper Negro river basin, Brazilian Amazonia

    DEFF Research Database (Denmark)

    Borges, Alvaro Humberto Diniz; Faragher, Brian; Lalloo, David G

    2012-01-01

    Pyomyositis remains poorly documented in tropical Latin America. We therefore performed a retrospective review of cases admitted to a hospital in the upper Negro river basin during 2002-2006. Seasonality was assessed by the cosinor model and independent predictors of outcome were identified...... lesions). Staphylococcus aureus was the only identified infecting organism (18 of 20 culture results, 90%). Complications occurred in 17 patients (20.7%) and the case fatality rate was 2.4%. Children were more likely to present with eosinophilia than adults (OR= 4.20, 95% CI 1.08-16.32, p=0.......048), but no other significant differences regarding clinical presentation and outcomes were observed. The time-to-fever resolution was the only independent determinant of poor outcome (OR=1.52, 95% CI 1.22-1.92, p...

  16. Connecting College Learners with Rural Entrepreneurship Opportunities: The Rural Entrepreneurship Teaching Unit

    Science.gov (United States)

    Frazier, Barbara J.; Niehm, Linda S.; Stoel, Leslie

    2012-01-01

    The Rural Entrepreneurship Teaching Unit (RETU) is designed to acquaint university retailing and hospitality majors with rural entrepreneurship opportunities. The unit is an outcome of a federal grant focused on the contribution of the local retail sector to rural community resilience. The RETU integrates knowledge regarding rural development,…

  17. The study of untreated syphilis in the Negro male

    International Nuclear Information System (INIS)

    Brawley, Otis W.

    1998-01-01

    Purpose: The participation of minorities in clinical studies is the subject of much discussion and has even become the subject of Federal law. The project known as the Tuskegee Syphilis Study and officially titled 'The Tuskegee Study of Untreated Syphilis in the Negro Male', is one of the great debacles of American medicine and a national shame. Despite the fact that its existence is well known, many do not know the historical facts of the study nor the context of the study. My purpose here is to recount the facts of the study and its historical context. Methods: The history recounted here is taken from documents gathered during a U.S. Senate investigation of the study, original papers located in National Library of Medicine, and books about the trial. Results: The trial began in 1931 as a survey of the natural history of untreated tertiary syphilis in Black men. This study enrolled 399 men with syphilis and 201 uninfected men to serve as controls. All were at least 25 years old at enrollment. The men were told they were in a study, but never educated about the implications. Later, men were not informed that there was a treatment for effective treatment for their disease - a treatment that was being withheld from them. This trial continued till 1972. Conclusion: Many of the issues that led to the study and caused it to continue for 40 years still exist. The lessons of the Public Health Study of Untreated Syphilis in the Untreated Negro include the dangers of paternalism, arrogance, blind loyalty, and misuse of science. 'Those who do not appreciate history are condemned to repeat it' (Alfred North Whitehead)

  18. Menarche stories: reminiscences of college students from Lithuania, Malaysia, Sudan, and the United States.

    Science.gov (United States)

    Chrisler, J C; Zittel, C B

    1998-01-01

    Women college students in four countries were invited to write the story of their first menstruation in as much detail as memory allowed. Stories were received from 26 Lithuanians, 27 Americans, 20 Malaysians, and 23 Sudanese. The stories were read and their contents analyzed for the presence or absence of information on such topics as emotional reaction, preparedness, sources of information about menstruation, changes in body image, and celebrations of this rite of passage. Similarities and differences among the groups are discussed, and passages from particularly interesting stories are quoted.

  19. Reflections on attitudes, experiences, and vulnerability of intimate partner violence among Southeast Asian college women living in United States.

    Science.gov (United States)

    Thongpriwan, Vipavee; Buseh, Aaron; Arunothong, Wachiraporn

    2015-12-01

    To provide culturally sensitive intimate partner violence (IPV) prevention programs for ethnic groups, a basic foundational understanding of Southeast Asian (SEA) women living in the United States is vital. The purpose of this study was to describe SEA college women's perceptions of IPV and how the women recognize their vulnerability to such violent situations. Qualitative methods using focus group discussions were employed to elicit participants' perceptions. Participants included 18 SEA college women, ages 18-34 (Mean=22; SD=7.22). Transcriptions were analyzed using a content analysis approach. Five themes emerged: recognition of IPV; perception of individual vulnerability to IPV; experience and responses to IPV; help seeking and support system; and strategies used for prevention of IPV. Findings yielded an understanding of intertwined issues of cultural norms associated with IPV, social and economic disparities, and challenges for IPV prevention in SEA communities. Culturally sensitive prevention programs will be more effective by reforming cultural values, while at the same time promoting non-violent relationships and increasing access to services. Published by Elsevier B.V.

  20. Navigating through institutional identity in the context of a transformed United Church of Zambia University College in Zambia

    Directory of Open Access Journals (Sweden)

    Nelly Mwale

    2017-12-01

    Full Text Available The article investigated the rising trend that has not received attention in Zambian scholarship of institutions that started as theological institutions transforming or shifting from the provision of theology only to other disciplines to meet the growing demand for higher education. Using the United Church of Zambia University College (UCZUC as a case in point, the paper explored how the institution had experienced and repositioned itself in the context of transformation with reference to its identity and diversity from a descriptive case study perspective. Data was collected through document analyses and recorded interviews and informed by secularization of institutions’ theories. The study established that the institution had transformed into a university college and diversified its programmes from theology alone to other disciplines in order to broaden its scope of service in the area of education support to the nation. However, the integration of theology and other secular disciplines in the institution had not only transformed the institutional identity but also diversified the institution, and this required finding a balance between the two. Transformation had also initiated new marketing strategies to sell its products (programmes to the public. The paper argues that in the context of sustainability challenges associated with theological education, UCZUC presents a potential success story of theological institutions’ quest to maintain viability in modern times through striving for active and intentional integration of sacred and secular (theology with other disciplines as a contribution to higher education and society.

  1. Information as Power: An Anthology of Selected United States Army War College Student Papers. Volume 3

    Science.gov (United States)

    2009-01-01

    some efforts along this path recently when it worked with the Walt Disney Company to produce a seven minute film and hundreds of still images... Disney Parks and Resorts Partners with Departments 53. of State and Homeland Security to Welcome International Visitors to the United States

  2. College Sports-Related Injuries - United States, 2009-10 Through 2013-14 Academic Years.

    Science.gov (United States)

    Kerr, Zachary Y; Marshall, Stephen W; Dompier, Thomas P; Corlette, Jill; Klossner, David A; Gilchrist, Julie

    2015-12-11

    Sports-related injuries can have a substantial impact on the long-term health of student-athletes. The National Collegiate Athletic Association (NCAA) monitors injuries among college student-athletes at member schools. In academic year 2013-14, a total of 1,113 member schools fielded 19,334 teams with 478,869 participating student-athletes in NCAA championship sports (i.e., sports with NCAA championship competition) (1). External researchers and CDC used information reported to the NCAA Injury Surveillance Program (NCAA-ISP) by a sample of championship sports programs to summarize the estimated national cumulative and annual average numbers of injuries during the 5 academic years from 2009-10 through 2013-14. Analyses were restricted to injuries reported among student-athletes in 25 NCAA championship sports. During this period, 1,053,370 injuries were estimated to have occurred during an estimated 176.7 million athlete-exposures to potential injury (i.e., one athlete's participation in one competition or one practice). Injury incidence varied widely by sport. Among all sports, men's football accounted for the largest average annual estimated number of injuries (47,199) and the highest competition injury rate (39.9 per 1,000 athlete-exposures). Men's wrestling experienced the highest overall injury rate (13.1 per 1,000) and practice injury rate (10.2 per 1,000). Among women's sports, gymnastics had the highest overall injury rate (10.4 per 1,000) and practice injury rate (10.0 per 1,000), although soccer had the highest competition injury rate (17.2 per 1,000). More injuries were estimated to have occurred from practice than from competition for all sports, with the exception of men's ice hockey and baseball. However, injuries incurred during competition were somewhat more severe (e.g., requiring ≥7 days to return to full participation) than those acquired during practice. Multiple strategies are employed by NCAA and others to reduce the number of injuries in

  3. Humanistic Elements in the Educational Practice at a United States Sub-Baccalaureate Technical College

    Directory of Open Access Journals (Sweden)

    Carsten Schmidtke

    2017-08-01

    Full Text Available Humanism has never been able to establish a firm place in technical education, which remains predominantly pragmatist in response to industry needs, certification requirements and educational standardisation. However, after a period of decline, humanism has made somewhat of a comeback as part of the movement toward student-centred education. Research conducted at a technical college showed that although . This research indicated that including humanistic elements in educational practice will enable instructors to be more effective in helping students to develop skills in relation to team work, problem-solving, systems improvement, lifelong learning and other areas that are becoming increasingly necessary for success in the workplace. The include a constructivist approach with a focus on contextual teaching and learning using situated cognition, cognitive apprenticeships, anchored instruction and authentic assessment. At the same time, some suggestions for improving professional development for teachers by using a Gestalt approach along with self-study in the context of learning communities have been discussed.

  4. Knowledge and Perceptions of Influenza Vaccinations Among College Students in Vietnam and the United States.

    Science.gov (United States)

    Kamimura, Akiko; Trinh, Ha N; Weaver, Shannon; Chernenko, Alla; Nourian, Maziar M; Assasnik, Nushean; Nguyen, Hanh

    2017-07-01

    Influenza is a significant worldwide public health issue. Knowledge and perceptions regarding the flu vaccination are associated with whether individuals obtain the vaccination. The purpose of this study was to examine how such perceptions were related to knowledge and self-efficacy regarding influenza and the flu vaccination in Vietnam and the US. College students (n=932) in Vietnam (n=495) and the US (n=437) completed a self-administered survey regarding knowledge and perceptions of influenza vaccinations in September and October 2016. Vietnamese participants reported significantly lower levels of awareness about flu risk, higher levels of negative attitudes toward flu vaccination, lower levels of knowledge about the flu and vaccination, and lower levels of self-efficacy than US participants. Higher levels of flu and flu vaccination knowledge and self-efficacy regarding general responsible health practices were associated with lower levels of negative perceptions of flu risk and attitudes toward vaccination. At the same time, self-efficacy regarding responsible health practices was associated with higher levels of awareness of flu risk and lower levels of negative attitudes toward vaccination. Self-efficacy regarding exercise was associated with lower levels of perceptions of flu risk and higher levels of negative attitudes toward vaccination. Vietnam could benefit from influenza education based on this comparison with the US. In both countries, knowledge and self-efficacy were found to be important factors influencing perceptions of influenza risk and vaccination.

  5. Knowledge and Perceptions of Influenza Vaccinations Among College Students in Vietnam and the United States

    Directory of Open Access Journals (Sweden)

    Akiko Kamimura

    2017-07-01

    Full Text Available Objectives Influenza is a significant worldwide public health issue. Knowledge and perceptions regarding the flu vaccination are associated with whether individuals obtain the vaccination. The purpose of this study was to examine how such perceptions were related to knowledge and self-efficacy regarding influenza and the flu vaccination in Vietnam and the US. Methods College students (n=932 in Vietnam (n=495 and the US (n=437 completed a self-administered survey regarding knowledge and perceptions of influenza vaccinations in September and October 2016. Results Vietnamese participants reported significantly lower levels of awareness about flu risk, higher levels of negative attitudes toward flu vaccination, lower levels of knowledge about the flu and vaccination, and lower levels of self-efficacy than US participants. Higher levels of flu and flu vaccination knowledge and self-efficacy regarding general responsible health practices were associated with lower levels of negative perceptions of flu risk and attitudes toward vaccination. At the same time, self-efficacy regarding responsible health practices was associated with higher levels of awareness of flu risk and lower levels of negative attitudes toward vaccination. Self-efficacy regarding exercise was associated with lower levels of perceptions of flu risk and higher levels of negative attitudes toward vaccination. Conclusions Vietnam could benefit from influenza education based on this comparison with the US. In both countries, knowledge and self-efficacy were found to be important factors influencing perceptions of influenza risk and vaccination.

  6. El vacío iluminado del negro

    Directory of Open Access Journals (Sweden)

    Alicia Sánchez Ortiz

    2014-01-01

    Full Text Available Negación y suma de todos los colores, el negro posee una enorme potencialidad que a lo largo de los siglos se ha visto plasmada a través de diversas manifestaciones artísticas, en un lento transcurrir que le ha posibilitado asumir un puesto relevante en el ámbito contemporáneo. La negrura tiene un inmenso abanico de asociaciones negativas y espantosas. Nos remite a los rincones más oscuros de nuestra memoria. Algo lógico teniendo en cuenta su vinculación con la oscuridad y el miedo a lo oculto, a diferencia de lo luminoso, que se relaciona preferentemente con cualidades muy positivas. Cosmogónicamente, la negrura es el caos; ontogénicamente, es el signo de la muerte y la tumba, o del ambivalente útero; es también el color del no ser, del vacío; físicamente connota la ceguera; psicológicamente significa la temible tierra de los sueños y el inconsciente. El negro nos exhorta a mirar la oscuridad, a reconocer la belleza en la ausencia del color y de la luz.Black (disclaimer and sum of all colours has a large potential that, over the centuries, has been reflected through various art forms which has enabled him to assume an important place in the contemporary scene. The blackness has a huge range of negative and appalling associations. It refers us to the darkest corners of our memory; which makes sense considering its link with the darkness and fear of the occult (in contrast to light, which is associated preferentially with very positive qualities. Cosmogonically, the darkness is chaos. Ontogenetically, is the sign of death and the grave, or ambivalent uterus. It is also the colour of non-being, emptiness and physically it connotes blindness. Psychologically it signifies the dreaded land of dreams and the unconscious. The black exhorts us to look at the darkness and to recognize beauty in the absence of colour and light.

  7. Investigating the subsurface connection beneath Cerro Negro volcano and the El Hoyo Complex, Nicaragua

    Science.gov (United States)

    Venugopal, Swetha; Moune, Séverine; Williams-Jones, Glyn

    2016-10-01

    Cerro Negro, the youngest volcano along the Central American Volcanic Belt (CAVB), is a polygenetic cinder cone with relatively frequent basaltic eruptions. The neighbouring El Hoyo complex, of which Las Pilas is the dominant edifice, is a much larger and older complex with milder and less frequent eruptions. Previous studies have suggested a deep link beneath these two closely spaced volcanoes (McKnight, 1995; MacQueen, 2013). Melt inclusions were collected from various tephra samples in order to determine whether a connection exists and to delineate the features of this link. Major, volatile, and trace elemental compositions reveal a distinct geochemical continuum with Cerro Negro defining the primitive endmember and El Hoyo representing the evolved endmember. Magmatic conditions at the time of melt inclusion entrapment were estimated with major and volatile contents: 2.4 kbar and 1170 °C for Cerro Negro melts and 1.3 kbar and 1130 °C for El Hoyo melts with an overall oxygen fugacity at the NNO buffer. Trace element contents are distinct and suggest Cerro Negro magmas fractionally crystallise while El Hoyo magmas are a mix between primitive Cerro Negro melts and residual and evolved El Hoyo magma. Modelling of end member compositions with alphaMELTS confirms the unique nature of El Hoyo magmas as resulting from incremental mixing between Cerro Negro and residual evolved magma at 4 km depth. Combining all available literature data, this study presents a model of the interconnected subsurface plumbing system. This model considers the modern day analogue of the Lemptégy cinder cones in Massif Central, France and incorporates structurally controlled dykes. The main implications of this study are the classification of Cerro Negro as the newest conduit within the El Hoyo Complex as well as the potential re-activation of the El Hoyo edifice.

  8. The Relationship of Gender Equity to Compensation, Career Advancement and Leadership in Selected Colleges of Business in Finland, Jamaica and the United States

    Science.gov (United States)

    Leslie, Hewlett Steve

    2017-01-01

    The purpose of the study was to examine the relationship of gender equity to faculty compensation, career advancement, and access to leadership roles in colleges of business in Finland, Jamaica and the United States. This quantitative study, anchored by feminist, human capital and socialization theories supported the emergence of a conceptual…

  9. A Study Identifying and Validating Competencies Needed for Mid-Managers That Work in Housing and Residence Life at Colleges and Universities in the United States of America

    Science.gov (United States)

    Morrison, Hassel Andre

    2016-01-01

    The researcher identified a gap in the knowledge of competencies needed for midmanagers that work in housing and residence life at the southeast colleges and universities in the United States. The purpose of this study was to identify and develop a consensus on competencies needed by mid-managers. The review of the literature describes and…

  10. A Cross-Cultural Comparison of Knowledge and Stigma Associated with Autism Spectrum Disorder among College Students in Lebanon and the United States

    Science.gov (United States)

    Obeid, Rita; Daou, Nidal; DeNigris, Danielle; Shane-Simpson, Christina; Brooks, Patricia J.; Gillespie-Lynch, Kristen

    2015-01-01

    Although misconceptions associated with ASD are apparent worldwide, they may differ across cultures. This study compares knowledge and stigma associated with ASD in a country with limited autism resources, Lebanon, and a country with substantial autism resources, the United States (US). College students in the US (N = 346) and Lebanon (N = 329)…

  11. Examining Post-Migration Psycho-Cultural Adjustment Challenges of Foreign-Born Students at Community Colleges in the Northeastern United States

    Science.gov (United States)

    Anemelu, Charles I.

    2012-01-01

    The current study is an attempt to examine post-migration psycho-cultural adjustment factors that potentially inhibit foreign-born students' (FBS) adjustment at community colleges (CCs) in the United States. Although much research has been conducted to better understand various aspects of FBSs' adjustment challenges little attention has been paid…

  12. Emergency Contraceptive Pills: A 10-Year Follow-up Survey of Use and Experiences at College Health Centers in the Mid-Atlantic United States

    Science.gov (United States)

    Miller, Laura McKeller; Sawyer, Robin G.

    2006-01-01

    The authors conducted a 10-year follow-up study using a telephone survey to investigate the availability of emergency contraceptive pills (ECPs) at college health centers in the mid-Atlantic region of the United States. They also examined related issues, such as distribution procedure, existence of a written protocol, personnel involved,…

  13. Social Support, Sense of Community, and Psychological Distress among College Students: Examining the Impact of University Housing Units

    Science.gov (United States)

    Suitor, Daniel Troy

    2013-01-01

    Attending college can be a rewarding but stressful time for students. Colleges and universities across the nation are becoming more and more concerned with the mental health of their students. Although past research has explored how social support and sense of community help students make a better transition to college life, less is known about…

  14. Review of Online Programming Characteristics and Pricing at Private Not-for-Profit Two Year Colleges in the United States

    Science.gov (United States)

    Ahlstrom, Christopher

    2016-01-01

    Online programming has expanded greatly within higher education and much attention has been spent on public two year colleges (more commonly known as community colleges) and both private and public four year institutions. This research seeks to expand understanding of the small market of private not-for-profit two year colleges within the United…

  15. Physical Aggression and Mindfulness among College Students: Evidence from China and the United States

    Directory of Open Access Journals (Sweden)

    Yu Gao

    2016-05-01

    Full Text Available Background: The link between trait mindfulness and several dimensions of aggression (verbal, anger and hostility has been documented, while the link between physical aggression and trait mindfulness remains less clear. Method: We used two datasets: one United States sample from 300 freshmen males from Clemson University, South Carolina and a Chinese sample of 1516 freshmen students from Shanghai University of Finance and Economics. Multiple regressions were conducted to examine the association between mindfulness (measured by Mindful Attention and Awareness Scale (MAAS and each of the four subscales of aggression. Results: Among the Clemson sample (N = 286, the mindfulness scale had a significant negative association with each of the four subscales of aggression: Hostility: β = −0.62, p < 0.001; Verbal: β = −0.37, p < 0.001; Physical: β = −0.29, p < 0.001; Anger: β = −0.44, p < 0.001. Among the Shanghai male subsample, the mindfulness scale had a significant negative association with each of the four subscales of aggression: Hostility: β = −0.57, p < 0.001; Verbal: β = −0.37, p < 0.001; Physical: β = −0.35, p < 0.001; Anger: β = −0.58, p < 0.001. Among the Shanghai female subsample (N = 512, the mindfulness scale had a significant negative association with each of the four subscales of aggression: Hostility: β = −0.62, p < 0.001; Verbal: β = −0.41, p < 0.001; Physical: β = −0.52, p < 0.001; and Anger: β = −0.64, p < 0.001. Discussion: Our study documents the negative association between mindfulness and physical aggression in two non-clinical samples. Future studies could explore whether mindfulness training lowers physical aggression among younger adults.

  16. Filmografía y bibliografía del cine negro americano (1930-1960

    Directory of Open Access Journals (Sweden)

    Dr. José Luis Sánchez Noriega

    1999-01-01

    Full Text Available La actualidad del cine negro queda patente con el éxito de crítica y de público de obras recientes como Casino (Martin Scorsese, 1995, La brigada del sombrero (Lee Tamahori, 1996, Al caer el sol (Robert Benton, 1996 o Donnie Brasco (Mike Newell, 1996. Hace unos meses han aparecido dos libros que se ocupan de este género y ofrecen una selección de un centenar de películas: El cine negro en 100 películas de Antonio Santamarina (Alianza, Madrid, 1999 y Obras maestras del cine negro (Mensajero, Bilbao, 1998, de quien firma estas líneas.

  17. Motives and Concerns Associated with Geosocial Networking App Usage: An Exploratory Study Among Heterosexual College Students in the United States.

    Science.gov (United States)

    Griffin, Meredith; Canevello, Amy; McAnulty, Richard D

    2018-04-01

    Geosocial network application (GSNA) use is common among young adults. However, there is little empirical research into patterns of use, motives, and potential concerns among app users. A total of 409 heterosexual students from a public university in the southeast United States participated in an online survey. Sample composition was primarily Caucasian and in their first 2 years of college. Average age was 19.7 years. Results revealed that 39 percent of participants had used a GSN app, and 60 percent of these were regular users. Tinder was the most popular GSNA. Top reasons for app use were for fun (31 percent) and to meet people (11 percent). Very few users reported using them for casual sex encounters (4 percent), although many users (72 percent of men and 22 percent of women) were open to meeting a sexual partner with a GSNA. Regular users were less likely to be in dating relationships. In-person meetings of matches were relatively infrequent among app users. Those who did meet matches were very likely to vet them online in advance, and women were more likely to do so than men. App users rated them as relatively unsafe, women in particular. Top concerns included safety (44 percent), others misrepresenting their identities (35 percent), and privacy (18 percent). Overall, regular app users perceived their use as normative among peers, but they did not view the apps as particularly useful for meeting matches. Although there are few surveys of GSNA use among emerging adults in the United States, some limitations are noted, along with suggestions for future research.

  18. Light in Rural Schools, polyclinics and police detachment : inventory of 210 rural units, energetic and socio economics review

    International Nuclear Information System (INIS)

    Santiago Silva, T.

    1994-01-01

    With the aim to the future solar installations system in the rural area it has been done a report about 210 rural units placed in: Rivera, Tacuarembo, Salto, Paysandu, Florida, Flores, Lavalleja, Durazno, Cerro largo y Rio Negro departments

  19. How Visual Imagery Contributed to College: A Case of How Visual Imagery Contributes to a College Algebra Student's Understanding of the Concept of Function in the United States

    Science.gov (United States)

    Lane, Rebekah M.

    2011-01-01

    This investigation utilized the qualitative case study method. Seventy-one College Algebra students were given a mathematical processing instrument. This testing device measured a student's preference for visual thinking. Two students were purposefully selected using the instrument. The visual mathematical learner (VL) was discussed in this…

  20. Eolic central Guerrero Negro, BCS, Mexico, performance first year operation; Central eolica Guerrero Negro, BCS, Mexico, resultados del primer ano de operacion

    Energy Technology Data Exchange (ETDEWEB)

    Cadenas Tovar, Roberto; Sanchez Cornejo, Carlos; Lopez Rios, Serafin [Comision Federal de Electricidad, Morelia, Michoacan (Mexico); Ley Romero, Jose R [Comision Federal de Electricidad, Guerrero Negro, Baja California Sur (Mexico)

    2000-07-01

    Comision Federal de Electricidad installed a 600 kW wind turbine in the Guerrero Negro isolated electrical grid to evaluate, under actual operation conditions, the contribution of wind energy in the generation of electricity. This paper describes the performance of the wind turbine in terms of its availability, power curve and electricity produced. The results have been satisfactory, electricity was supplied with a lesser fuel consumption than before. [Spanish] La Comision Federal de Electricidad instalo en Guerrero Negro, Baja California Sur, Mexico un aerogenerador de 600 kW para evaluar en condiciones reales de operacion la integracion de la energia del viento a sistemas electricos aislados basados en diesel. En este trabajo se describen los resultados del primer ano de operacion del aerogenerador en terminos de su disponibilidad, curva de potencia y generacion obtenida. Los resultados han sido satisfactorios, registrandose una reduccion en el consumo de combustible fosil en el sistema.

  1. Black and Hispanic Immigrants' Resilience against Negative-Ability Racial Stereotypes at Selective Colleges and Universities in the United States

    Science.gov (United States)

    Owens, Jayanti; Lynch, Scott M.

    2012-01-01

    Stereotype threat is a widely supported theory for understanding the racial achievement gap in college grade performance. However, today's minority college students are increasingly of immigrant origins, and it is unclear whether two dispositional mechanisms that may increase susceptibility to stereotype threat are applicable to immigrants. We use…

  2. Toward a Generation Free of Tuberculosis: TB Disease and Infection in Individuals of College Age in the United States

    Science.gov (United States)

    Shah, N. S.; Flood-Bryzman, A.; Jeffries, C.; Scott, J.

    2018-01-01

    Objectives: To assess the magnitude of active TB disease and latent TB infection (LTBI) in young adults of college age. Participants: Individuals who were aged 18-24 years in 2011 were used as a proxy for college students. Methods: Active TB cases reported to the 2011 US National TB Surveillance System (NTSS) were included. LTBI prevalence was…

  3. Geochronologic study of sediments deposition of two lakes from the Rio Negro basin, Amazonas State, Brazil

    International Nuclear Information System (INIS)

    Gomes, Ana Carla F.; Mozeto, Antonio A.; Cazotti, Raul I.; Nascimento Filho, Virgilio F.; Taddei, Maria Helena

    2000-01-01

    Since 1963 the radionuclide 210 Pb became an important tool for dating (geochronology) recent sediments (up to 120 years). In this work the sedimentary geochronology of two lakes from the Negro River Basin was determined, using different radiochemical separation methods for 210 Pb and 226 Ra. (author)

  4. The Making of the New Negro : Black Authorship, Masculinity, and Sexuality in the Harlem Renaissance

    NARCIS (Netherlands)

    Pochmara, Anna

    2011-01-01

    The Making of the New Negro onderzoekt zwarte mannelijkheid in de periode van de Harlem Renaissance, die lange tijd weinig wetenschappelijke aandacht trok, totdat in de jaren negentig veel geleerden ontdekten hoe complex, belangrijk en boeiend deze tijd was. Anna Pochmara maakt gebruik van

  5. Native Sons: A Critical Study of Twentieth-Century Negro American Authors.

    Science.gov (United States)

    Margolies, Edward

    This analysis of 20th-century Negro literature contains chapters discussing 16 authors: (1) "The First Forty Years: 1900-1940," including W. E. B. DuBois, Charles W. Chesnutt, James W. Johnson, Paul L. Dunbar, Langston Hughes, Jean Toomer, Claude McKay, and Countee Cullen; (2) "Migration: William Attaway and 'Blood on the Forge'"; (3) "Richard…

  6. Jobs and Income for Negroes. Policy Papers in Human Resources and Industrial Relations No. 6.

    Science.gov (United States)

    Killingsworth, Charles C.

    In spite of increasingly effective anti-discrimination laws and a reduction in the educational differential between blacks and whites, the rapid economic progress made by Negroes in the 1940's and early 1950's has not continued. This study finds evidence that labor market adjustments and population changes are major factors. The labor market…

  7. Self-Esteem and Achievement Expectation for White and Negro Children. Curriculum Report.

    Science.gov (United States)

    Guggenheim, Fred

    The relationship between self-esteem, academic expectations, and ethnic group membership was studied in a New York City elementary school which had an approximately equal enrollment of Negro, white, and Spanish-background pupils. Subjects were 162 sixth-grade students who were tested with two projective tests and one specifically designed…

  8. Palaeomagnetic constraints on the age of Lomo Negro volcanic eruption (El Hierro, Canary Islands)

    Science.gov (United States)

    Villasante-Marcos, Víctor; Pavón-Carrasco, Francisco Javier

    2014-12-01

    A palaeomagnetic study has been carried out in 29 cores drilled at six different sites from the volcanic products of Lomo Negro eruption (El Hierro, Canary Islands, Spain). Systematic thermal and alternating field demagnetization of the samples' natural remanent magnetization revealed a northward, stable palaeomagnetic direction similar in all the samples. Rock magnetic experiments indicate that this palaeomagnetic component is carried by a mixture of high-Ti and low-Ti titanomagnetite crystals typical of basaltic lithologies that have experienced a significant degree of oxyexsolution during subaerial cooling. The well constrained palaeomagnetic direction of Lomo Negro lavas was used to perform a palaeomagnetic dating of the volcanic event, using the SHA.DIF.14k global geomagnetic model restricted for the last 3000 yr. It can be unambiguously concluded that Lomo Negro eruption occurred well before the previously proposed date of 1793 AD, with three different age ranges being statistically possible during the last 3 ka: 115 BC-7 AD, 410-626 AD and 1499-1602 AD. The calibration of a previously published non-calibrated 14C dating suggests a XVI c. date for Lomo Negro eruption. This conclusion leaves open the possibility that the seismic crisis occurred at El Hierro in 1793 AD was related to an intrusive magmatic event that either did not reach the surface or either culminated in an unregistered submarine eruption similar to the one occurred in 2011-2012 at the southern off-shore ridge of the island.

  9. El Negro, el Niño, witchcraft and the absence of rain in Botswana

    NARCIS (Netherlands)

    Gewald, J.B.

    2001-01-01

    In October 2000, the remains of 'El Negro', a Tswana man who had died 170 years before and who, as a stuffed specimen, had been on display in Europe for over 160 years, were flown from Spain to Botswana and given a State funeral in the capital Gaborone. In early 2001, as it became clear that the

  10. The Negro in the Furniture Industry. The Racial Policies of American Industry Series.

    Science.gov (United States)

    Fulmer, William E.

    This is the twenty-eighth of a series of studies conducted to determine variances in industrial employment practices of Negroes and to develop appropriate hiring policies. This particular study sought to examine current racial employment policies in the furniture industry within the context of the industry's structure and history. Interviews with…

  11. Food Consumption Patterns in Relation to Life Styles of In-migrant Negro Families.

    Science.gov (United States)

    Jerome, Norge W.

    This paper discusses the relevance of sociocultural characterization to an understanding of the food consumption patterns of families headed by inmigrant Negro manual workers in the central city of Milwaukee, Wisconsin. Field techniques employed in ethnological studies and in dietary surveys were followed in this study. The original population…

  12. An American Dilemma. The Negro problem and Modern Democracy. Volume II.

    Science.gov (United States)

    Myrdal, Gunnar

    This study, originally commissioned by the Carnegie Corporation in 1938, makes it clear that the root of the "Negro problem" is the conflict between American moral valuations preserved in the American ideal and the valuations existing on specific planes of individual and group living. There is a jarring discrepancy between the professed…

  13. Saúde reprodutiva e mulheres indígenas do Alto Rio Negro

    Directory of Open Access Journals (Sweden)

    Marta Azevedo

    Full Text Available O presente artigo descreve e analisa as concepções próprias das mulheres indígenas do Alto Rio Negro sobre saúde reprodutiva, relacionando-as a indicadores de fecundidade. As informações qualitativas apontam para um conhecimento detalhado e complexo que as mulheres indígenas dessa região possuem sobre seu corpo e os cuidados com sua saúde. Os níveis e padrões etários da fecundidade estão relacionados com a etnia das mulheres, portanto, aos sistemas tradicionais de cuidados com a saúde desses povos. A pesquisa foi desenvolvida entre 1997 e 2003, na região de Iauaretê, Terra Indígena Alto Rio Negro (AM, e teve como primeira fonte de dados o Censo Indígena Autônomo do Rio Negro - CIARN-, levado a efeito pela Federação das Organizações Indígenas do Rio Negro - FOIRN - em 1992.

  14. Consumo de morera (Morus alba y sorgo negro forrajero (Sorghum almum en ganado Jersey

    Directory of Open Access Journals (Sweden)

    Carlos Boschini

    2000-01-01

    Full Text Available Se cosecharon ramas de morera de 84 días y forraje de sorgo negro forrajero de 77 días de rebrote. El forraje fue suministrado a seis toretes Jersey con un peso vivo promedio de 337 (±24,27 kg, distribuidos en un diseño de cuadrado latino 3 x 3, repetido. Los tratamientos experimentales fueron: a.- suministro único de morera, b.- 50% de morera y 50% de sorgo negro forrajero en base verde tal como fue cosechada y c.- suministro único de sorgo negro forrajero. Ambos forrajes se ofrecieron a los animales en forma picada (hojas y tallos. La mezcla de morera y sorgo se realizó en partes iguales en base al peso fresco. Cada animal recibió 50 kg/día de forraje verde. La relación promedio de hoja:tallo en la morera fue de 1,3 (±0,39 y de 0,84 (±0,26 en el sorgo negro. Se recolectaron muestras del material ofrecido y rechazado para el análisis de materia seca, proteína cruda, fibra neutro detergente y cenizas totales. No se observaron diferencias (p>0,05 en el consumo de materia fresca y de materia seca (kg/animal/día entre los tratamientos. La ingesta de materia seca por cada 100 kg de peso vivo de los animales fue de 1,94% para la dieta de morera, 1,82% para la mezcla morera/sorgo y 1,67% para la dieta de sorgo negro, lo cual fue inferior al 2% esperado

  15. Affiliations of community health centers with the accredited schools and colleges of optometry in the states and territories of the United States.

    Science.gov (United States)

    2008-10-01

    In 2006, the American Optometric Association Community Health Center Committee surveyed schools/colleges of optometry in the United States and its territories to assess collaborations between community health centers and optometric institutions. The survey investigated the number and structure of affiliations that existed between Federally Qualified Health Centers and schools/colleges of optometry in the United States. The survey reached the schools through the American Optometric Association Faculty Relations Committee or personal contact (Inter-American University of Puerto Rico). The survey showed wide variation in affiliations of community health centers with optometry programs. Six schools had no affiliations, whereas the remaining 11 ranged from 1 to 14. Information relating to 37 community health centers was reported. Results showed that schools utilized community health centers for fourth-year students in 5 schools, and both third- and fourth-year students in the remaining 6 schools. Schools vary regarding how precepting is managed with either full-time faculty (64.9%) or adjunct faculty. Business models also vary between schools. Affiliations between school/colleges of optometry and community health centers differ considerably. Optometric affiliations with community health centers can result in increased access to eye care for underserved populations and increased clinical experience for optometry students and residents. Opportunities exist to establish additional affiliations. Educational benefits and costs associated with affiliations should be explored before entering into a collaborative model of eye care delivery.

  16. BLACK AND HISPANIC IMMIGRANTS' RESILIENCE AGAINST NEGATIVE ABILITY RACIAL STEREOTYPES AT SELECTIVE COLLEGES AND UNIVERSITIES IN THE UNITED STATES*

    Science.gov (United States)

    Owens, Jayanti; Lynch, Scott M

    2012-10-01

    Stereotype threat is a widely supported theory for understanding the racial achievement gap in college grade performance. However, today's minority college students are increasingly of immigrant origins, and it is unclear whether two dispositional mechanisms that may increase susceptibility to stereotype threat are applicable to immigrants. We use survey data to examine whether and how negative ability stereotypes affect the grades of 1,865 first, second, and third generation or higher (domestic) minority students at 28 selective American colleges. Structural equation model results indicate that first generation immigrants are highly-resistant to both dispositional identity threat mechanisms we consider. Second generation immigrants experience only certain dispositional elements of identity threat. Drawing on research in social psychology, we suggest immigrants tend to resist stereotype threat in part due to the primacy of their immigrant identities and their connectedness to the opportunity structure of mainstream society.

  17. RESISTENCIA A SEQUÍA DE LINEAS Y VARIEDADES DE FRIJOL NEGRO TROPICAL

    Directory of Open Access Journals (Sweden)

    Ernesto Lopez Salinas

    2011-06-01

    Full Text Available Los objetivos de esta investigación fueron: clasificar genotipos de frijol negro por su tolerancia a sequía e identificar los de mayor eficiencia en el rendimiento en condiciones de riego y sequía. Para ello, en invierno-primavera 2008 se condujeron dos experimentos en Medellín de Bravo, Veracruz; uno con riego todo el ciclo y el otro sin riego, a partir del inicio de floración. Se evaluaron nueve líneas, seis variedades y Criollo Arbolito (testigo local en diseño bloques completos al azar con tres repeticiones. Se cuantificó días a madurez fisiológica, producción de materia seca sin grano, vainas por planta, peso de 100 semillas y rendimiento de grano. Se hicieron análisis de varianza por condición de humedad y uno combinado. Como estimadores de eficiencia se utilizaron el índice de susceptibilidad a sequía (ISS y el índice de eficiencia relativa del rendimiento (IER. Con riego, Negro INIFAP, 82L-17-80, Negro Tacaná y Negro Veracruz, fueron los genotipos más productivos con más de 1,0 t ha-1. Con sequía sobresalieron los dos últimos genotipos, más la línea DOR 448, con rendimientos superiores a 400 kg ha-1. El rendimiento bajo sequía en promedio representó el 37,7% con respecto al de riego. Con ISS de 0,71, 0,85 y 0,87, las líneas DOR-448, NGO 17-99 e Icta Ju-97-1, respectivamente, fueron clasificadas como resistentes a sequía. Las variedades Negro Tacaná y Negro Veracruz con valores de IER de 1,67 y 1,47, mostraron la mayor eficiencia en el rendimiento en ambas condiciones de humedad.

  18. Seismotectonics of the 6 February 2012 Mw 6.7 Negros Earthquake, central Philippines

    Science.gov (United States)

    Aurelio, M. A.; Dianala, J. D. B.; Taguibao, K. J. L.; Pastoriza, L. R.; Reyes, K.; Sarande, R.; Lucero, A.

    2017-07-01

    At 03:49 UTC on the 6th of February 2012, Negros Island in the Visayan region of central Philippines was struck by a magnitude Mw 6.7 earthquake causing deaths of over 50 people and tremendous infrastructure damage leaving hundreds of families homeless. The epicenter was located in the vicinity of the eastern coastal towns of La Libertad and Tayasan of the Province of Negros Oriental. Earthquake-induced surface deformation was mostly in the form of landslides, liquefaction, ground settlement, subsidence and lateral spread. There were no clear indications of a fault surface rupture. The earthquake was triggered by a fault that has not been previously recognized. Earthquake data, including epicentral and hypocentral distributions of main shock and aftershocks, and focal mechanism solutions of the main shock and major aftershocks, indicate a northeast striking, northwest dipping nodal plane with a reverse fault mechanism. Offshore seismic profiles in the Tañon Strait between the islands of Negros and Cebu show a northwest dipping reverse fault consistent in location, geometry and mechanism with the nodal plane calculated from earthquake data. The earthquake generator is here proposed to be named the Negros Oriental Thrust (NOT). Geologic transects established from structural traverses across the earthquake region reveal an east-verging fold-thrust system. In the latitude of Guihulngan, this fold-thrust system is represented by the Razor Back Anticline - Negros Oriental Thrust pair, and by the Pamplona Anticline - Yupisan Thrust pair in the latitude of Dumaguete to the south. Together, these active fold-thrust systems are causing active deformation of the western section of the Visayan Sea Basin under a compressional tectonic regime. This finding contradicts previous tectonic models that interpret the Tañon Strait as a graben, bounded on both sides by normal faults supposedly operating under an extensional regime. The Negros Earthquake and the active fold

  19. Hot and steamy fractures in the Philippines: the characterisation and permeability evaluation of fractures of the Southern Negros Geothermal Field, Negros Oriental, Philippines

    Science.gov (United States)

    Pastoriza, Loraine; Holdsworth, Robert; McCaffrey, Kenneth; Dempsey, Eddie; Walker, Richard; Gluyas, Jon; Reyes, Jonathan

    2017-04-01

    Fluid flow pathway characterisation is critical to geothermal exploration and exploitation. It requires a good understanding of the structural evolution, fault distribution and fluid flow properties. A dominantly fieldwork-based approach has been used to evaluate the potential fracture permeability characteristics of a typical high-temperature geothermal reservoir in the Southern Negros Geothermal Field, Philippines. This is a liquid-dominated geothermal resource hosted in the andesitic to dacitic Quaternary Cuernos de Negros Volcano in Negros Island. Fieldwork reveals two main fracture groups based on fault rock characteristics, alteration type, relative age of deformation, and associated thermal manifestation, with the younger fractures mainly related to the development of the modern geothermal system. Palaeostress analyses of cross-cutting fault and fracture arrays reveal a progressive counterclockwise rotation of stress axes from the (?)Pliocene up to the present-day, which is consistent with the regional tectonic models. A combined slip and dilation tendency analysis of the mapped faults indicates that NW-SE structures should be particularly promising drilling targets. Frequency versus length and aperture plots of fractures across six to eight orders of magnitude show power-law relationships with a change in scaling exponent in the region of 100 to 500m length-scales. Finally, evaluation of the topology of the fracture branches shows the dominance of Y-nodes that are mostly doubly connected suggesting good connectivity and permeability within the fracture networks. The results obtained in this study illustrate the value of methods that can be globally applied during exploration to better characterize fracture systems in geothermal reservoirs using multiscale datasets.

  20. Paleoambientes lacustres en la sección inferior de la Formación Río Negro, (Mioceno - Plioceno, Río Negro, Argentina

    Directory of Open Access Journals (Sweden)

    Roberto Schillizzi

    2008-12-01

    Full Text Available Se estudian paleoambientes lacustres aflorantes en un sector de la plataforma marina ubicadas en la localidad de La Lobería, Provincia de Río Negro. Los medios lagunares son buenos indicadores de las modificaciones climáticas soportadas por el ambiente. La metodología aplicada para la investigación consistió en tamizados por vía seca de las psamítas, análisis con difractometría de rayos "X" de las arcillas y observaciones paleontológicas. En la plataforma intermareal se determino la presencia de tres secciones que componen el miembro inferior de la Formación Río Negro. La sección basal esta formada por areniscas finas, gris verdoso, de origen eólico y depositadas en un medio de dunas con influencia ácuea. La sección media esta constituida por limolitas arcillosas a arenosas finas, color pardo rosado, con estratificación, moldes de bivalvos dulceacuícolas e icnitas de vertebrados. Esta sección se asocia a lagunas someras y restringidas, ambiente que se habría extendido en dirección NE. Este nivel esta cubierto por la sección superior formada por areniscas gris azuladas claras, con estratificación cruzada a horizontal, depositadas en un medio eólico. En la actualidad los ambientes lagunares descriptos soportan una fuerte erosión marina.This paper describes pond paleoenvironments from a marine platform sited in La Lobería, Río Negro Province, Argentina. Ponds are good indicators of paleoenvironmental evolution because they are very sensitive to changes in climatic conditions. The methodology used for this research consisted in dry sieving, X-ray diffractometry analysis and paleontological observations. Three sections belonging to the lower section of the Río Negro formation were determined in the intertidal platform. The lower section is composed of fine-grained greenish gray sandstones deposited in an aeolian dune environment with acueos influence. The middle section consists of stratifield pinkish brown clayey to

  1. Comparisons of Gambling and Alcohol Use among College Students and Noncollege Young People in the United States

    Science.gov (United States)

    Barnes, Grace M.; Welte, John W.; Hoffman, Joseph H.; Tidwell, Marie-Cecile O.

    2010-01-01

    Objective: Gambling and alcohol use were compared for college and noncollege young adults in the US population. Participants: Participants were 1,000 respondents aged 18 to 21. Methods: Data were analyzed from a representative household sample of US young people aged 14 to 21 years old. Telephone interviews were conducted between August 2005 and…

  2. Understanding the Effects of Rurality and Socioeconomic Status on College Attendance and Institutional Choice in the United States

    Science.gov (United States)

    Koricich, Andrew; Chen, Xi; Hughes, Rodney P.

    2018-01-01

    This study seeks to update past studies of rural youth by examining college attendance and choice decisions for students who graduated from rural high schools, while also conducting an examination of how the effects of socioeconomic status manifest differently by locale. Logistic regression is used to study the postsecondary attendance and…

  3. Educational Policies for Integrating College Competencies and Workforce Needs: Cases from Brazil, Mongolia, Ukraine, and the United States. Issue Brief

    Science.gov (United States)

    Bastedo, Michael; Batkhuyag, Batjargal; Prates, Eufrasio; Prytula, Yaroslav

    2009-01-01

    In the past decade, the role of higher education in workforce development has emerged as a key issue around the world. Leading authorities inside and outside of government have begun questioning whether colleges and universities are preparing graduates with the competencies and skills necessary to compete in a dynamic global economy. As part of a…

  4. Thomas Edison State College and Colorado State University: Using Cutting-Edge Technology to Enhance CE Unit Success

    Science.gov (United States)

    van Zyl, Henry; Powell, Albert, Jr.

    2012-01-01

    Thomas Edison State College (TESC) and Colorado State University (CSU) offer significant contrasts in institutional culture, student demographics, faculty and institutional priorities and approaches to distance education course development and delivery. This article offers case studies showing that widely disparate program design and delivery…

  5. An Examination of the Relationships among United States College Students' Media Use Habits, Need For Cognition, and Grade Point Average

    Science.gov (United States)

    Turner, Jacob Stephen; Croucher, Stephen Michael

    2014-01-01

    The current study uses survey methods to understand how US college students' use of various types of social media, such as social networking websites and text messaging on smart phones, as well as consumption of traditional media, such as watching television and reading books for pleasure, is (or is not) related to intellectual cognitive…

  6. [The people of the black waters: the Amazon caboclo of the Negro river].

    Science.gov (United States)

    dos Santos, Fernando Sergio Dumas

    2007-12-01

    The article constructs a historically contextualized description of the people who live along the Negro river, a Brazilian affluent in the Amazon basin. Drawing on information about the daily social experience of the participants from the dawn of the twentieth century through the mid-1990s, the processes by which the population and communities took shape are identified. On the Negro river, contact between Brazilian society and the autochthonous, catechized indigenous groups living there was determinant in shaping the territory's caboclo identity. Starting in the last quarter of the nineteenth century, this nomenclature took root and entered the popular lexicon. Extractivist activities played a major role in spreading the term, within a context where the predominant social relations derived from the 'cultura do barracão'.

  7. Light in Rural Schools, polyclinics and police detachment : inventory of 210 rural units, energetic and socio economics review; Luz para Escuelas, policlinicas y destacamentos policiales rurales: relevamiento de 210 unidades rurales, evaluacion energetica y socioeconomica

    Energy Technology Data Exchange (ETDEWEB)

    Santiago Silva, T [Red fotovoltaica Latino-Europea patrocinada por CC.EE. (Uruguay)

    1994-07-01

    With the aim to the future solar installations system in the rural area it has been done a report about 210 rural units placed in: Rivera, Tacuarembo, Salto, Paysandu, Florida, Flores, Lavalleja, Durazno, Cerro largo y Rio Negro departments.

  8. Translating sexual assault prevention from a college campus to a United States military installation: piloting the know-your-power bystander social marketing campaign.

    Science.gov (United States)

    Potter, Sharyn J; Stapleton, Jane G

    2012-05-01

    One population that shares both similar and different characteristics with traditional college-age students is the U.S. Military. Similarities include a high concentration of 18- to 26-year-olds dealing with new found independence, peer pressure, and the presence of social norms that support violence and hypermasculinity. Sexual violence is a major public health problem in the United States, and because of the similarities in the age group of college and military populations, the problems regarding sexual violence in both constituencies have been well-documented. In the current pilot study we seek to add to both current knowledge about and promising practices of translating prevention strategies from one target audience to another. We describe how we translated, administered, and evaluated a bystander intervention social marketing campaign focused on sexual assault prevention that had been found to significantly affect attitude change on a college campus for a U.S. Army installation in Europe. In addition to demonstrating the process of translating prevention strategies across target audiences, findings from this pilot study contribute to the evaluation data on the effectiveness of sexual violence prevention strategies implemented with members of the U.S. Military. From our analysis, we see that research participants indicate that the degree to which the images resonate with them and the familiarity of the context (i.e., social self-identification) significantly effect the participants' personal responsibility for reducing sexual assault, confidence in acting as a bystander, and reported engagement as a bystander.

  9. Mining or Tourism: The Development Preference of Settlers Along Pagatban River in Negros Oriental, Philippines

    OpenAIRE

    Enrique G. Oracion

    2015-01-01

    This paper examines the development preference of settlers surveyed along the upstream, midstream, and downstream sections of Pagatban River in Negros Oriental in central Philippines. The majority of 120 respondents, equally distributed along the three sections of the river, are against the restoration of mining but are in favor of tourism development considering the ecological costs and economic benefits they have to bear with and enjoy, respectively. Specif ically, the data show that the nu...

  10. Santos negros nas Américas na crise do Antigo Regime

    Directory of Open Access Journals (Sweden)

    Caroline dos Santos Guedes

    2014-12-01

    Full Text Available Os objetos de estudo deste ensaio são a irmandade de São Baltasar em Buenos Aires e a irmandade de São Elesbão e Santa Efigênia no Rio de Janeiro de fins do século XVIII até princípios do século XIX. Ambas as instituições têm majoritariamente associados negros e contam também com santos negros como patronos. Observe-se a importância da apropriação da religião católica por estes afrodescendentes e o papel que esses “santos de cor” exercem no cotidiano desta população restrita de direitos devido à sua ascendência africana. As irmandades são instituições de suma importância na dinâmica colonial, então os negros se inserem nessas instituições ou criam suas próprias, muitas vezes na tentativa de penetrar no mundo social das colônias, ganhando maior visibilidade.

  11. OSL dating of sediments from Negro and Solimões rivers – Amazon, Brazil

    International Nuclear Information System (INIS)

    Fiore, M.; Soares, E.A.A.; Mittani, J.C.R.; Yee, M.; Tatumi, S.H.

    2014-01-01

    In this work, the OSL dating results of Quaternary fluvial deposits from the confluence of Negro and Solimões rivers were studied. The equivalent doses (D e ) of sediments were obtained using a Single Aliquot Regeneration (SAR) protocol. Statistic studies were made using frequency histogram, weighted histogram and Radial plot in order to analyze the D e fluctuations. Ages from 74.5 to 205 thousand of years (Pleistocene) were recorded. The gamma-ray spectroscopy was used to evaluate the natural radioisotopes concentrations of the samples and low concentrations were found with values between 0.64 and 3.71 ppm for 235 U and 238 U; 2.01–9.77 ppm for 232 Th; already, for 40 K, the concentration was negligible. The OSL dating of sediments has contributed to a better understanding of the evolution of Negro and Solimões rivers, in Amazon, Brazil. - Highlights: ► OSL dating of fluvial terraces from Amazon. ► SAR protocols applied to Amazon sediments dating. ► OSL dating of Solimão and Negro rivers sediments

  12. Resposta do detector de ondas gravitacionais Mario Schenberg ao "ringdown" de buraco negros

    Science.gov (United States)

    Costa, C. A.; Aguiar, O. D.; Magalhães, N. S.

    2003-08-01

    Acredita-se que quando duas estrelas de nêutrons coalescem, elas, eventualmente, formam um buraco negro com massa igual a soma das massas dos objetos originais. Durante a formação do buraco negro, o espaço-tempo em torno do sistema sofre perturbações que se propagam na forma de radiação gravitacional. A forma de onda associada a radiação gravitacional, durante este estágio, aproxima-se a uma senóide exponencialmente amortecida. Este tipo de sinal é conhecido como "ringdown", e seu comportamento e parametrização são muito bem conhecidos. Neste trabalho, simulamos computacionalmente sinais provenientes do "ringdown" de buracos negros, com a finalidade de testar o desempenho do detector de ondas gravitacionais Mario Schenberg em observá-los, quando entrar em funcionamento. Este primeiro teste teórico ajudou-nos a criar estratégias de detecção de sinais imersos no ruído instrumental. Calculamos a relação sinal-ruído como uma função da frequência, bem como sua integral dentro da faixa de sensibilidade do detector. Os resultados obtidos mostraram que o detector Schenberg terá sensibilidade suficiente para detectar este tipo de sinal, proveniente de fontes astrofísicas localizadas dentro de um raio de ~100kpc.

  13. Diel variation of larval fish abundance in the Amazon and Rio Negro

    Directory of Open Access Journals (Sweden)

    ARAUJO-LIMA C. A. R. M.

    2001-01-01

    Full Text Available Many streams and large rivers present higher ichthyoplankton densities at night. However, in some rivers this does not occur and larvae are equally abundant during the day. Larval drift diel variation is an important information for planning sampling programs for evaluating larval distribution and production. The aim of this study was to test whether the abundance of larval fish was different at either period. We tested it by comparing day and night densities of characiform, clupeiform and siluriform larvae during five years in the Amazon and one year in Rio Negro. We found that larvae of three species of characiform and larvae of siluriform were equally abundant during day and night in the Amazon. Conversely, the catch of Pellona spp. larvae was significantly higher during the day. In Rio Negro, however, larval abundance was higher during the night. These results imply that day samplings estimate adequately the abundance of these characiform and siluriform larvae in the Amazon, but not Pellona larvae. Evaluations of larved densities of Rio Negro will have to consider night sampling.

  14. Diel variation of larval fish abundance in the Amazon and Rio Negro

    Directory of Open Access Journals (Sweden)

    C. A. R. M. ARAUJO-LIMA

    Full Text Available Many streams and large rivers present higher ichthyoplankton densities at night. However, in some rivers this does not occur and larvae are equally abundant during the day. Larval drift diel variation is an important information for planning sampling programs for evaluating larval distribution and production. The aim of this study was to test whether the abundance of larval fish was different at either period. We tested it by comparing day and night densities of characiform, clupeiform and siluriform larvae during five years in the Amazon and one year in Rio Negro. We found that larvae of three species of characiform and larvae of siluriform were equally abundant during day and night in the Amazon. Conversely, the catch of Pellona spp. larvae was significantly higher during the day. In Rio Negro, however, larval abundance was higher during the night. These results imply that day samplings estimate adequately the abundance of these characiform and siluriform larvae in the Amazon, but not Pellona larvae. Evaluations of larved densities of Rio Negro will have to consider night sampling.

  15. Metazoan endoparasites of Serrasalmus marginatus (Characiformes: Serrasalminae in the Negro River, Pantanal, Brazil Metazoários endoparasitos de Serrasalmus marginatus (Characiformes: Serrasalminae no Rio Negro, Pantanal, Brasil

    Directory of Open Access Journals (Sweden)

    Wagner Vicentin

    2011-03-01

    Full Text Available In order to inventory the metazoan endoparasites of Serrasalmus marginatus, 91 specimens were examined. They were captured in the Negro River in Pantanal wetland, State of Mato Grosso do Sul, Central-Western Brazil, from October 2007 to August 2008. Parasites of six taxa were recovered: Procamallanus (Spirocamallanus inopinatus, Contracaecum sp. (Nematoda, metacercarial type Diplostomulum (Digenea, Brevimulticaecum sp. (Nematoda and Sebekia oxycephala, Subtriquetra sp. 1 and Subtriquetra sp. 2 (Pentastomida. The latter five species are reported for the first time in S. marginatus.Com o objetivo de inventariar os metazoários endoparasitos em Serrasalmus marginatus, no Rio Negro, Pantanal, Mato Grosso do Sul, Brasil, foram examinados 91 espécimes capturados no período de outubro de 2007 a agosto de 2008. Foram registrados seis táxons parasitos: Procamallanus (Spirocamallanus inopinatus, Contracaecum sp. (Nematoda, metacercária do tipo Diplostomulum (Digenea; Brevimulticaecum sp. (Nematoda; e Sebekia oxycephala, Subtriquetra sp. 1 e Subtriquetra sp. 2 (Pentastomida. As últimas cinco espécies citadas são registradas pela primeira vez em S. marginatus.

  16. Empowering Minority Communities with Health Information - ASU

    Energy Technology Data Exchange (ETDEWEB)

    McMurray, L. and W. Templin-Branner

    2010-11-12

    Training Manual updated for United Negro College Fund Special Programs Corporation/National Library of Medicine - HBCU ACCESS Project for Alcorn State University, Natchez, Mississippi, November 12, 2010

  17. Mapping Contemporary Terrorism Courses at Top-Ranked National Universities and Liberal Arts Colleges in the United States

    OpenAIRE

    Ivan Sascha Sheehan

    2012-01-01

    Most of the scholarly work on Terrorism Studies focuses on terrorism research (knowledge production). By contrast, relatively little attention has been paid to teaching about terrorism (knowledge dissemination) at universities. This paper addresses this gap by providing a systematic analysis of contemporary terrorism courses at 106 top-ranked U.S. based universities and colleges. The study uses 1) key word searches of course catalogues for the academic year 2010-2011 to identify terrorism cou...

  18. Paleoambientes sedimentarios de la Formación Toro Negro (Neógeno, antepaís fracturado andino, noroeste argentino Sedimentary paleoenvironments of the Toro Negro Formation (Neogene, Andean broken foreland, northwest Argentina

    Directory of Open Access Journals (Sweden)

    Patricia L Ciccioli

    2012-09-01

    paleovalle fluvial en el norte del área y posterior relleno por cursos fluviales gravo-arenosos provenientes del oeste principalmente (AFI-V. En la etapa II (Mioceno Medio a Tardío se desarrollan sistemas fluviales no confinados areno-gravosos (AFVI-VII que progradan sobre un lago somero (AFVIII desarrollado en el sur del área. Finalmente, la etapa III (miembro superior, Mioceno Tardío-Plioceno Temprano corresponde a pulsos de progradación de la cuña clástica (AFIX-XI desde el oeste (Precordillera.The Toro Negro Formation (Neogene records the sedimentation in the broken-foreland Vinchina Basin during the Andean Orogeny, in northwestern Argentina. This unit is composed of conglomerates, sandstones and mudstones together with some beds of breccias and tuffs deposited mainly in fluvial environments. Eleven facies associations (FA were identified in this unit, eight of them corresponding to the lower member and three to the upper member. FAI is composed of massive intraformational megabreccias and cross-bedded conglomerates deposited in braided fluvial systems that filled a deep fluvial paleovalley formed in the north of the studied region. FAII was only identified in marginal positions of the paleovalley and is composed of intraformational breccias and sandstones forming channel belts incised within alluvial plains deposits. FAIII comprises gravelly channel belts and sandy floodplains dominated by crevasse splays interpreted as deposited in semiarid anastomosing fluvial systems. FAIV shows coarsening-upward successions with thick muddy alluvial plain deposits including thin crevasse splays and gravelly single channels. Encapsulated channel complexes composed of coarse-grained sandstones and scarce conglomerates, form FAV. FAVI covers a low-relief erosive surface and is mainly composed of conglomerates and gravelly sandstones deposited in broad alluvial plains. This fluvial complex evolved to a lower-energy system (FAVII characterized by an increase of muddy floodplain

  19. Examining the influence of mental health on dual contraceptive method use among college women in the United States.

    Science.gov (United States)

    Moore, Melanie; Kwitowski, Melissa; Javier, Sarah

    2017-06-01

    To examine mental health influences on dual contraceptive method use (i.e., the use of a hormonal contraceptive or intrauterine device with a condom barrier) among college women. Data from N=307 sexually active women who completed the 2014 National College Health Assessment at a large mid-Atlantic university were analyzed. Following chi-square tests of associations, multivariate logistic regressions examined the relation between mental health and sociodemographic factors and dual contraceptive method use. Among all women, 27% utilized a dual contraceptive method during last vaginal intercourse. A prior depressive disorder diagnosis was significantly associated with lower odds of dual method use compared to use of other contraceptive methods combined (aOR, 0.39; 95% CI: 0.19-0.79), use of no method (aOR, 0.12; 95% CI: 0.03-0.55), or use of hormonal contraceptives only (aOR, 0.39; 95% CI: 0.18-0.85). Mental health is an important contributor to contraceptive method use. Health care providers should consider the role of mental health when counseling women about contraceptive options during routine gynecological visits. Results suggest that mental health screenings may be helpful in identifying those most at risk for not using dual contraceptive methods. Copyright © 2017 Elsevier B.V. All rights reserved.

  20. Proyecto MeCIN: Alto Valle de Río Negro, Argentina MeCIN Project: alto Valle of Rio negro, Argentina

    Directory of Open Access Journals (Sweden)

    Alberto L Flores

    2006-12-01

    Full Text Available Este trabajo presenta los resultados obtenidos durante el experimento de campo MeCIN (Mediciones de la Capa de Inversión Nocturna cuyo objetivo fue estudiar el comportamiento del viento, la temperatura del aire y la evolución del enfriamiento en los valles de los ríos Neuquén, Limay y Negro en noches con inversión térmica en las primaveras de los años 1992 al 1997. Las situaciones sinópticas que propiciaron los intensos efectos radiativos nocturnos fueron asociadas con un anticiclón migratorio postfrontal en 1000 hPa y un eje de vaguada en 500 hPa. Los gradientes verticales de temperatura alcanzaron valores medios entre 0,26 °C/m en el valle del río Neuquén y 0,14 °C/m en el del Negro. El tope de la inversión térmica, en promedio, se ubicó a más de 30 m. Las mediciones de los perfiles de velocidad del viento mostraron un patrón de dos capas: una capa inferior sin movimiento y otra superior con velocidades en promedio entre 2,9 m/s y 4,0 m/s. El enfriamiento nocturno fue superior en la zona de chacras y menor en cercanías del río y sobre la meseta. La temperatura del aire durante la noche fue menor en el valle que en la meseta, dependiendo de su altura.This paper presents the results of field experience MeCIN (Measurements of the Nocturnal Inversion Layer. The project was performed to study the characteristics of wind, air temperature and the evolution of nocturnal cooling in the Neuquén, Limay, and Negro river valleys during nighttime with thermal inversion in the layer near ground, between 1992 and 1997 spring seasons. The mean synoptic situations that favored the nocturnal radiative effects were associated with migratory postfrontal 1000 hPa anticyclones and a though axis in 500 hPa. The mean vertical gradient of air temperature was 0,26 °C/m in the Neuquén river valley and 0,14 °C/m in the Negro river valley. The top of the thermal inversion, on the average, was located above 30 m. The wind speed profile presented two

  1. Disordered Eating Attitudes and Exercise Behavior among Female Emirati College Students in the United Arab Emirates: A Cross- Sectional Study

    Directory of Open Access Journals (Sweden)

    Haleama Al Sabbah

    2016-09-01

    Results: The participants' mean age and standard deviation (Mean ± SD was 19 ± 1.3 years. 31.4% of the participants showed disordered eating attitudes. The percentage of participants engaged in at least one concerning behavior in the past six months was 43.8%. A membership in a health club was significantly related to disordered eating attitudes (p< 0.01. A high level of physical activity was correlated with laxative use, over the counter supplements, and exercising for more than 60 minutes to control weight (p < 0.05. Conclusion: There is a great need for intervention programs and policies to contain the level of abnormal eating attitudes and promote healthy level of physical activity among college students.

  2. Two new species of the Hypostomus cochliodon group (Siluriformes: Loricariidae from the rio Negro basin in Brazil

    Directory of Open Access Journals (Sweden)

    Pedro Hollanda Carvalho

    Full Text Available Two new species of Hypostomus are described from the middle and upper rio Negro in Brazil. They are assigned to the Hypostomus cochliodon group (sensu Armbruster, 2003 by possessing few spoon-shaped teeth, and dentary angle averaging less than 80º. Hypostomus kopeyaka is described from the rio Tiquié, a tributary of the rio Uaupés, upper rio Negro basin, presents a unique color pattern among the Hypostomus species belonging to the Hypostomus cochliodon group, consisting of conspicuously horizontally elongated, closely-set black spots over the entire dorsal and lateral surfaces of the body. Hypostomus weberi is described from the middle rio Negro and can be distinguished from all remaining Hypostomus species belonging to the Hypostomus cochliodon group by possessing a unique color pattern consisting in large, rounded, widelyspaced black spots over body and fins.

  3. Organobentonita como sustituto de negro de carbono en formulaciones de caucho

    Directory of Open Access Journals (Sweden)

    López Manchado, M. A.

    2004-04-01

    Full Text Available Rubber compounds based on natural rubber reinforced with ammonium salt modified bentonite have been prepared and characterized. It pretends to evaluate the possibility of using these white fillers as substitute of carbon black in natural rubber compounds. Vulcametric curves show that the organoclay and carbon black accelerate the vulcanization reaction and, furthermore, give rise to a marked increase in the torque. However, it is of interest to point out that these effects are more marked in the case of the organoclay. In addition, the mechanical characterization show the strong reinforcing effect of both fillers, but this effect is newly more sensible when the organoclay is added to the NR. It is worthy to note that the mechanical properties of 10% organoclay-NR nanocomposite are comparable to the 40 phr carbon black filled compound.

    Se han preparado y caracterizado nanocomposites de caucho natural reforzados con bentonita modificada orgánicamente con una sal de amonio. Se pretende evaluar la posibilidad de utilizar estas cargas claras como sustitutos del negro de carbono en las formulaciones de caucho natural. Las curvas de vulcanización muestran que tanto la bentonita organofilizada como el negro de carbono aceleran la reacción de vulcanización y además, dan lugar a un considerable incremento en el torque. No obstante, es interesante destacar que estos efectos son más marcados en el caso de la organobentonita. Por su parte, la caracterización mecánica muestra el fuerte efecto reforzante de ambas cargas, si bien este efecto es nuevamente más acusado en presencia de la organobentonita. Es importante señalar que las propiedades mecánicas del nanocomposite reforzado con 10 partes de organobentonita son similares a las del composite con 40 partes de negro de carbono.

  4. El impacto de la crisis fiscal en el trabajo en negro: las provincias de noroeste argentino

    Directory of Open Access Journals (Sweden)

    Marta Panaia

    2000-12-01

    Full Text Available El trabajo se enmarca dentro de los estudios de génesis, crecimiento y dinamismo del sector informal y aumento o disminución de la propensión a trabajar en condiciones de informalidad, ya sea por la forma de contrato (precariedad; por la falta de pago (evasión previsional o comunmente llamado «en gris» o « en negro» por su característica de clandestinidad (ilegalidad o por realizarse en unidades económicas informales. En el contexto económico de la década del '90, en la Argentina, con las nuevas medidas que construyen un nuevo perfil del mercado de trabajo, se analizan los determinantes del mercado de trabajo sin aportes utilizando los datos de la construcción de un mapa de propensión al trabajo en negro, en base a un método de análisis de inobservables de fenómenos de multiples causas y múltiples consecuencias. El mapa construido para todo el país, en una investigación anterior, sirve de base para un análisis más profundo de la zona del Noroeste Argentino, una de las regiones más desfavorecidas del país y donde la propensión al aumento del trabajo en negro es más intensa, contrastándolo con los del total del país.

  5. General Education Earth, Astronomy and Space Science College Courses Serve as a Vehicle for Improving Science Literacy in the United States.

    Science.gov (United States)

    Prather, E.

    2011-10-01

    Every year approximately 500,000 undergraduate college students take a general education Earth, Astronomy and Space Science (EASS) course in the Unites States. For the majority of these students this will be their last physical science course in life. This population of students is incredibly important to the science literacy of the United States citizenry and to the success of the STEM career pipeline. These students represent future scientists, technologists, business leaders, politicians, journalists, historians, artists, and most importantly, policy makers, parents, voters, and teachers. A significant portion of these students are taught at minority serving institutions and community colleges and often are from underserved and underrepresented groups, such as women and minorities. Members of the Center for Astronomy Education (CAE) at the University of Arizona have been developing and conducting research on the effectiveness of instructional strategies and materials that are explicitly designed to challenge students' naïve ideas and intellectually engage their thinking at a deep level in the traditional lecture classroom. The results of this work show that dramatic improvement in student understanding can be made from increased use of interactive learning strategies. These improvements are shown to be independent of institution type or class size, but appear to be strongly influenced by the quality of the instructor's implementation. In addition, we find that the positive effects of interactive learning strategies apply equally to men and women, across ethnicities, for students with all levels of prior mathematical preparation and physical science course experience, independent of GPA, and regardless of primary language. These results powerfully illustrate that all students can benefit from the effective implementation of interactive learning strategies.

  6. Validación de genotipos de frijol negro en la zona central del Estado de Veracruz, México

    Directory of Open Access Journals (Sweden)

    Francisco Javier Ugalde Acosta

    2005-01-01

    Full Text Available Validación de genotipos de frijol negro en la zona central del estado de Veracruz, México. El objetivo del presentetrabajo, fue validar genotipos de frijol con el paquete tecnológico del INIFAP, en parcelas de productores. Durante los ciclosde humedad residual de 1998 a 2001 se establecieron nueveparcelas de validación. Los genotipos utilizados fueron: las lí-neas II-307 y DOR-500 y las variedades Negro Huasteco 81,Negro Cotaxtla 91 y Negro INIFAPy como testigo del productor la variedad Jamapa. En las parcelas se realizaron las laboresde manejo agronómico recomendadas por el INIFAPpara esazona de producción. Cada parcela ocupó una superficie total de3000 m2. Se realizaron análisis de varianza individuales por localidad, considerando como repetición los rendimientos obtenidos por cada genotipo (500 m2 por ciclo de evaluación; también se efectuaron análisis combinado con prueba deseparación de medias (DMS 5% y un análisis económico mediante la Tasa de Retorno Marginal. Los resultados indicaronque las variedades y líneas mejoradas fueron superiores en másdel 100% en rendimiento al testigo. El análisis económicomostró que el mayor beneficio económico se obtuvo al sembrarlas variedades Negro INIFAPy Negro Cotaxtla 91, con utilidades superiores a los US $ 286/ha y una relación beneficio/costo de 1,52 y 1,51, respectivamente.

  7. Epidemiological surveillance of cystic echinococcosis in dogs, sheep farms and humans in the Rio Negro Province

    OpenAIRE

    Pérez, Alicia; Costa, María T.; Gustavo, Cantoni; Mancini, Sergio; Mercapide, Carlos; Herrero, Eduardo; Volpe, Marcela; Araya, Daniel; Talmon, Gabriel; Chiosso, Carlos; Vázquez, Gabriela; Del Carpio, Mario; Santillán, Graciela; Larrieu, Edmundo

    2006-01-01

    La vigilancia de la equinococcosis quística para detectar infestación por Echinococcus granulosus en la Provincia de Río Negro en el período 1980-2002 fue efectuada en el hombre mediante encuestas serológicas y ultrasonográficas en población joven, y en el perro por el test de arecolina. Dadas las limitaciones de esta técnica, se planteó suplantarla por el complejo copro ELISA Western Blot en heces caninas recolectadas del suelo. El objetivo del presente trabajo fue comparar las ventajas y li...

  8. La teoría de la radiación del cuerpo negro

    OpenAIRE

    Martínez, Roberto

    2012-01-01

    Se expondrán las ideas fundamentales que permitieron a Planck encontrar la teoría correcta para explicar el espectro de energía radiada por un cuerpo negro al calentarse como una función de la temperatura e independientemente de la naturaleza y la forma de éste; las dificultades que tuvo Planck para aceptar la teoría atómica y los desarrollos de Ludwing Boltzmann de la segunda ley de la termodinámica, la ley de la entropía, los cuales fueron los pilares para desarrollar la teoría de los cuant...

  9. Metazoan endoparasites of Pygocentrus nattereri (Characiformes: Serrasalminae in the Negro River, Pantanal, Brazil

    Directory of Open Access Journals (Sweden)

    Wagner Vicentin

    Full Text Available In the period of October 2007 to August 2008, 152 specimens ofPygocentrus nattereri were caught in the Negro River in the Nhecolândia region, central Pantanal wetland, State of Mato Grosso do Sul, Brazil. The specimens were necropsied and a total of 4,212 metazoan endoparasites were recovered, belonging to 10 taxons:Procamallanus (Spirocamallanusinopinatus, Philometridae gen. sp.,Eustrongylides sp., Brevimulticaecum sp.,Contracaecum sp. (Nematoda, Echinorhynchus paranensis (Acanthocephala, Leiperia gracile,Sebekia oxycephala, Subtriquetra sp. 1 andSubtriquetra sp. 2 (Pentastomida. This is the first record of two parasite species from P. nattereri: E. paranensis and L. gracile.

  10. El proyecto de cuotas raciales y la afirmación del negro en Brasil

    OpenAIRE

    Igreja, Rebecca

    2009-01-01

    El debate sobre el establecimiento de cuotas raciales en los exámenes de selección para el ingreso en las universidades brasileñas sigue polarizado. Posiciones a favor y en contra se confrontan en el mundo académico. De un lado, están principalmente los datos estadísticos divulgados que evalúan la diferencia social entre negros y blancos, con el objetivo de mesurar el impacto del racismo en la sociedad. Estos datos se han vuelto la “prueba irrefutable” de los efectos perversos del racismo en ...

  11. The Core Curricula of Information Systems Undergraduate Programs: A Survey of AACSB-Accredited Colleges in the United States

    Science.gov (United States)

    Yang, Samuel C.

    2016-01-01

    The author examines the present state of information systems undergraduate programs in the United States. He reviewed 516 institutions and collected data on 234 institutions offering information systems (IS) undergraduate programs. Of seven core courses required by the IS 2010 curriculum model, four are required by more than 50% of the programs,…

  12. Persistence of DACA-Mexico Origin College Students in the United States-Mexican Borderlands: A Correlational Study

    Science.gov (United States)

    Dominguez, Marguerite Nicole

    2017-01-01

    This was a correlational study of 30 Deferred Action for Childhood Arrivals-Mexico origin (D-MO) students at 2- and 4-year higher education institutions in the 4-state United States-Mexican Borderlands region (California, Arizona, Texas, and New Mexico). The study used an online survey to gain a better understanding of the relationship of four…

  13. Assessing the Impact of Socio-Economic Inequities on College Enrolment: Emerging Differences in the United Arab Emirates

    Science.gov (United States)

    Ghazal Aswad, Noor; Vidican, Georgeta; Samulewicz, Diana

    2011-01-01

    As the United Arab Emirates diversifies its economy towards knowledge-based industries, maximising the participation of the national workforce, particularly women, in the science, engineering and technology fields is of utmost importance. To accomplish this, identifying the factors that lead students to select their degree programme, as well as…

  14. A Private [School] Matter: The State of Materials Challenges in Private College Preparatory School Libraries in the Southeast United States

    Science.gov (United States)

    Franklin, Renee E.

    2008-01-01

    Materials challenges and censorship occur often in public and private educational settings. Private schools and their library media centers are not subject to the First Amendment but research reported in this article examines the state of challenges to materials held in private schools media centers in the southeast United States as a way to gauge…

  15. Development and validation of the Acculturative Stress Scale for Chinese College Students in the United States (ASSCS).

    Science.gov (United States)

    Bai, Jieru

    2016-04-01

    Chinese students are the biggest ethnic group of international students in the United States. This study aims to develop a reliable and valid scale to accurately measure their acculturative stress. A 72-item pool was sent online to Chinese students and a five-factor scale of 32 items was generated by exploratory factor analysis. The five factors included language insufficiency, social isolation, perceived discrimination, academic pressure, and guilt toward family. The Acculturative Stress Scale for Chinese Students demonstrated high reliability and initial validity by predicting depression and life satisfaction. It was the first Chinese scale of acculturative stress developed and validated among a Chinese student sample in the United States. In the future, the scale can be used as a diagnostic tool by mental health professionals and a self-assessment tool by Chinese students. (c) 2016 APA, all rights reserved.

  16. O vermelho e o negro: um experimento para pensar o ritual

    Directory of Open Access Journals (Sweden)

    Houseman Michael

    2003-01-01

    Full Text Available Este artigo trata da performance de um rito de iniciação inventado pelo autor, realizado como um experimento para pensar certos traços recorrentes da ação ritual e, em particular, da iniciação (masculina. O ritual em questão, O Vermelho e o Negro, foi planejado para consistir essencialmente, se não exclusivamente, em um padrão específico de interação: O Vermelho e o Negro não pertence a nenhuma tradição cultural reconhecível, não envolve quase nenhum simbolismo explícito, suas "crenças" subjacentes são abertamente despropositadas, suas qualidades cênicas mínimas e não se pode atribuir a ele praticamente nenhuma função social. Um dos objetivos do exercício é explorar e fundamentar uma abordagem relacional da análise do ritual na qual este é visto como atuação de relações específicas. Entre os temas discutidos estão os do enquadramento, da simulação, do sigilo, da imposição de sofrimento, da eficácia cerimonial, da condensação ritual e do complexo jogo de perspectivas internas e externas ao grupo.

  17. Growth of the Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae from the middle rio Negro, Amazonas, Brazil

    Directory of Open Access Journals (Sweden)

    Caroline Pereira Campos

    Full Text Available This study aimed to estimate age and growth of the peacock bass Cichla temensis from the rio Negro (Brazilian Amazonia by analyzing scale annuli. Specimens were captured between October 2011 and September 2012 in the main channel of the river and in adjacent lakes in the municipality of Barcelos, AM, Brazil. Six growth checks were identified on the scales of specimens. The annual variation in body condition observed suggests that fat is accumulated during the dry season. Results for the GSI (gonadosomatic index showed that peak reproduction occurred in the receding-water period, indicating that the fish had energy deficiencies as a result of reproductive activity. RMI (relative marginal increment analysis revealed that an annulus is formed once a year during the receding-water period. The population parameters estimated were L50 (length at sexual maturity = 31.11 cm, L∞ (asymptotic length = 68.05 cm, k (growth coefficient = 0.20.year-1 and A0.95 (longevity = 14 years. Our results corroborate the validity of using growth rings in scales as indicators to estimate the age and growth rate of Cichla temensis in the middle rio Negro.

  18. Ancient remains and the first peopling of the Americas: Reassessing the Hoyo Negro skull.

    Science.gov (United States)

    de Azevedo, Soledad; Bortolini, Maria C; Bonatto, Sandro L; Hünemeier, Tábita; Santos, Fabrício R; González-José, Rolando

    2015-11-01

    A noticeably well-preserved ∼12.500 years-old skeleton from the Hoyo Negro cave, Yucatán, México, was recently reported, along with its archaeological, genetic and skeletal characteristics. Based exclusively on an anatomical description of the skull (HN5/48), Chatters and colleagues stated that this specimen can be assigned to a set of ancient remains that differ from modern Native Americans, the so called "Paleoamericans". Here, we aim to further explore the morphological affinities of this specimen with a set of comparative cranial samples covering ancient and modern periods from Asia and the Americas. Images published in the original article were analyzed using geometric morphometrics methods. Shape variables were used to perform Principal Component and Discriminant analysis against the reference samples. Even thought the Principal Component Analysis suggests that the Hoyo Negro skull falls in a subregion of the morphospace occupied by both "Paleoamericans" and some modern Native Americans, the Discriminant analyses suggest greater affinity with a modern Native American sample. These results reinforce the idea that the original population that first occupied the New World carried high levels of within-group variation, which we have suggested previously on a synthetic model for the settlement of the Americas. Our results also highlight the importance of developing formal classificatory test before deriving settlement hypothesis purely based on macroscopic descriptions. © 2015 Wiley Periodicals, Inc.

  19. Analysis of heavy oils: Method development and application to Cerro Negro heavy petroleum

    Energy Technology Data Exchange (ETDEWEB)

    None

    1989-12-01

    On March 6, 1980, the US Department of Energy (DOE) and the Ministry of Energy and Mines of Venezuela (MEMV) entered into a joint agreement which included analysis of heavy crude oils from the Venezuelan Orinoco oil belt. The purpose of this report is to present compositional data and describe new analytical methods obtained from work on the Cerro Negro Orinoco belt crude oil since 1980. Most of the chapters focus on the methods rather than the resulting data on Cerro Negro oil, and results from other oils obtained during the verification of the method are included. In addition, published work on analysis of heavy oils, tar sand bitumens, and like materials is reviewed, and the overall state of the art in analytical methodology for heavy fossil liquids is assessed. The various phases of the work included: distillation and determination of routine'' physical/chemical properties (Chapter 1); preliminary separation of >200{degrees} C distillates and the residue into acid, base, neutral, saturated hydrocarbon and neutral-aromatic concentrates (Chapter 2); further separation of acid, base, and neutral concentrates into subtypes (Chapters 3--5); and determination of the distribution of metal-containing compounds in all fractions (Chapter 6).

  20. Analysis of heavy oils: Method development and application to Cerro Negro heavy petroleum

    Energy Technology Data Exchange (ETDEWEB)

    Carbognani, L.; Hazos, M.; Sanchez, V. (INTEVEP, Filial de Petroleos de Venezuela, SA, Caracas (Venezuela)); Green, J.A.; Green, J.B.; Grigsby, R.D.; Pearson, C.D.; Reynolds, J.W.; Shay, J.Y.; Sturm, G.P. Jr.; Thomson, J.S.; Vogh, J.W.; Vrana, R.P.; Yu, S.K.T.; Diehl, B.H.; Grizzle, P.L.; Hirsch, D.E; Hornung, K.W.; Tang, S.Y.

    1989-12-01

    On March 6, 1980, the US Department of Energy (DOE) and the Ministry of Energy and Mines of Venezuela (MEMV) entered into a joint agreement which included analysis of heavy crude oils from the Venezuelan Orinoco oil belt.The purpose of this report is to present compositional data and describe new analytical methods obtained from work on the Cerro Negro Orinoco belt crude oil since 1980. Most of the chapters focus on the methods rather than the resulting data on Cerro Negro oil, and results from other oils obtained during the verification of the method are included. In addition, published work on analysis of heavy oils, tar sand bitumens, and like materials is reviewed, and the overall state of the art in analytical methodology for heavy fossil liquids is assessed. The various phases of the work included: distillation and determination of routine'' physical/chemical properties (Chapter 1); preliminary separation of >200{degree}C distillates and the residue into acid, base, neutral, saturated hydrocarbon and neutral-aromatic concentrates (Chapter 2); further separation of acid, base, and neutral concentrates into subtypes (Chapters 3-5); and determination of the distribution of metal-containing compounds in all fractions (Chapter 6).

  1. Forest succession in the Upper Rio Negro of Colombia and Venezuela

    International Nuclear Information System (INIS)

    Saldarriaga, J.G.; West, D.C.; Tharp, M.L.

    1986-11-01

    Woody vegetation from 23 forest stands along the Upper Rio Negro of Venezuela and Colombia was sampled in 1982 to examine the hypothesis that the Amazon forest has been largely undisturbed since the Pleistocene, to quantify vegetation development during different stages of succession following agricultural development, and to determine the time required for a successional stand to become a mature forest. The ubiquitousness of charcoal in the tierra firme forest indicated the presence of fire associated with extreme dry periods and human disturbances. Changes in species composition, vegetation structure, and woody biomass were studied on 19 abandoned farms and four mature forest stands. Living and dead biomass for the tress and their components was determined by regression equations developed from measurements of harvested trees. The rate of recovery of floristic composition, structure, and biomass following disturbance is relatively slow. Aboveground dead biomass remained high 14 years after the forest was disturbed by the agricultural practices. The lowest dead biomass is reached 20 years after abandonment, and the largest values are found in mature forests. Data analysis of 80-year-old stands showed that the species composition approached that of a mature forest. Approximately 140 to 200 years was required for an abandoned farm to attain the basal area and biomass values comparable to those of a mature forest. The results of this study indicate that recovery is five to seven times longer in the Upper Rio Negro than it is in other tropical areas in South America

  2. Turismo religioso en la Basílica del Cristo Negro de Esquipulas, Guatemala.

    Directory of Open Access Journals (Sweden)

    Leonardo Daniel Rosas Paz

    2017-01-01

    Full Text Available Los santuarios religiosos representan, en la actualidad, espacios de atracción de turistas, creyentes o no, y de devotos; sobresalen algunos que, por su magnetismo espiritual, exhiben áreas extendidas de adherencia devocional y turística. Guatemala se inserta en el escenario anterior a través del caso de la Basílica de Esquipulas que resguarda a la venerada imagen del Cristo Negro; ubicada en la Ciudad-Santuario homónima al suroriente del arribo cíclico de miles de turistas y peregrinos que incentivan la economía local. El contexto territorial referido motivó la realización de este trabajo que tiene como objetivo revelar características geográficas del turismo religioso en el Santuario del Cristo Negro de Esquipulas; en una primera parte, se precisan los postulados teórico-conceptuales examinados que atañen al turismo religioso; posteriormente, se describen particularidades geográficas del contexto regional y local; finalmente, se detallan los hallazgos que comprueban la importancia geográfica del turismo religioso en el Santuario a partir de la investigación en gabinete y el trabajo realizado en campo.

  3. Forest succession in the Upper Rio Negro of Colombia and Venezuela

    Energy Technology Data Exchange (ETDEWEB)

    Saldarriaga, J.G.; West, D.C.; Tharp, M.L.

    1986-11-01

    Woody vegetation from 23 forest stands along the Upper Rio Negro of Venezuela and Colombia was sampled in 1982 to examine the hypothesis that the Amazon forest has been largely undisturbed since the Pleistocene, to quantify vegetation development during different stages of succession following agricultural development, and to determine the time required for a successional stand to become a mature forest. The ubiquitousness of charcoal in the tierra firme forest indicated the presence of fire associated with extreme dry periods and human disturbances. Changes in species composition, vegetation structure, and woody biomass were studied on 19 abandoned farms and four mature forest stands. Living and dead biomass for the tress and their components was determined by regression equations developed from measurements of harvested trees. The rate of recovery of floristic composition, structure, and biomass following disturbance is relatively slow. Aboveground dead biomass remained high 14 years after the forest was disturbed by the agricultural practices. The lowest dead biomass is reached 20 years after abandonment, and the largest values are found in mature forests. Data analysis of 80-year-old stands showed that the species composition approached that of a mature forest. Approximately 140 to 200 years was required for an abandoned farm to attain the basal area and biomass values comparable to those of a mature forest. The results of this study indicate that recovery is five to seven times longer in the Upper Rio Negro than it is in other tropical areas in South America.

  4. An examination of the stretching practices of Division I and Division III college football programs in the midwestern United States.

    Science.gov (United States)

    Judge, Lawrence W; Craig, Bruce; Baudendistal, Steve; Bodey, Kimberly J

    2009-07-01

    Research supports the use of preactivity warm-up and stretching, and the purpose of this study was to determine whether college football programs follow these guidelines. Questionnaires designed to gather demographic, professional, and educational information, as well as specific pre- and postactivity practices, were distributed via e-mail to midwestern collegiate programs from NCAA Division I and III conferences. Twenty-three male coaches (12 from Division IA schools and 11 from Division III schools) participated in the study. Division I schools employed certified strength coaches (CSCS; 100%), whereas Division III schools used mainly strength coordinators (73%), with only 25% CSCS. All programs used preactivity warm-up, with the majority employing 2-5 minutes of sport-specific jogging/running drills. Pre stretching (5-10 minutes) was performed in 19 programs (91%), with 2 (9%) performing no pre stretching. Thirteen respondents used a combination of static/proprioceptive neuromuscular facilitation/ballistic and dynamic flexibility, 5 used only dynamic flexibility, and 1 used only static stretching. All 12 Division I coaches used stretching, whereas only 9 of the 11 Division III coaches did (p = 0.22). The results indicate that younger coaches did not use pre stretching (p = 0.30). The majority of the coaches indicated that they did use post stretching, with 11 of the 12 Division I coaches using stretching, whereas only 5 of the 11 Division III coaches used stretching postactivity (p = 0.027). Divisional results show that the majority of Division I coaches use static-style stretching (p = 0.049). The results of this study indicate that divisional status, age, and certification may influence how well research guidelines are followed. Further research is needed to delineate how these factors affect coaching decisions.

  5. Shared Decision Making in Intensive Care Units: An American College of Critical Care Medicine and American Thoracic Society Policy Statement

    Science.gov (United States)

    Kon, Alexander A.; Davidson, Judy E.; Morrison, Wynne; Danis, Marion; White, Douglas B.

    2015-01-01

    Objectives Shared decision-making (SDM) is endorsed by critical care organizations, however there remains confusion about what SDM is, when it should be used, and approaches to promote partnerships in treatment decisions. The purpose of this statement is to define SDM, recommend when SDM should be used, identify the range of ethically acceptable decision-making models, and present important communication skills. Methods The American College of Critical Care Medicine (ACCM) and American Thoracic Society (ATS) Ethics Committees reviewed empirical research and normative analyses published in peer-reviewed journals to generate recommendations. Recommendations approved by consensus of the full Ethics Committees of ACCM and ATS were included in the statement. Main Results Six recommendations were endorsed: 1) Definition: Shared decision-making is a collaborative process that allows patients, or their surrogates, and clinicians to make health care decisions together, taking into account the best scientific evidence available, as well as the patient’s values, goals, and preferences. 2) Clinicians should engage in a SDM process to define overall goals of care (including decisions regarding limiting or withdrawing life-prolonging interventions) and when making major treatment decisions that may be affected by personal values, goals, and preferences. 3) Clinicians should use as their “default” approach a SDM process that includes three main elements: information exchange, deliberation, and making a treatment decision. 4) A wide range of decision-making approaches are ethically supportable including patient- or surrogate-directed and clinician-directed models. Clinicians should tailor the decision-making process based on the preferences of the patient or surrogate. 5) Clinicians should be trained in communication skills. 6) Research is needed to evaluate decision-making strategies. Conclusions Patient and surrogate preferences for decision-making roles regarding value

  6. THE NEGRO IN AMERICAN HISTORY TEXTBOOKS, A REPORT OF A STUDY OF THE TREAMENT OF NEGROES IN AMERICAN HISTORY TEXTBOOKS USED IN GRADES FIVE AND EIGHT AND IN THE HIGH SCHOOLS OF CALIFORNIA'S PUBLIC SCHOOLS.

    Science.gov (United States)

    California State Dept. of Education, Sacramento.

    THIS REPORT PRESENTS THE FINDINGS OF A PANEL OF SIX AMERICAN HISTORIANS FROM THE UNIVERSITY OF CALIFORNIA WHO REVIEWED SEVEN HISTORY TEXTS WIDELY USED IN THE STATE TO ASSESS THEIR TREATMENT OF THE AMERICAN NEGRO. THEY FOUND THAT MOST OF THE TEXTS REFLECTED VIEWS REJECTED OR DRASTICALLY MODIFIED BY GOOD CURRENT HISTORICAL SCHOLARSHIP. MANY OF THESE…

  7. Charles Edouard Brown-Séquard's departure from the Medical College of Virginia: incompatible science or incompatible social views in pre-Civil War southern United States.

    Science.gov (United States)

    Watson, Joseph C; Ho, Stephen V

    2011-01-01

    Charles Edouard Brown-Séquard was one of the most colorful characters in modern physiology. His scientific methods of self-experimentation and animal vivisection led to many great observations, including the eponymous syndrome of hemisection of the spinal cord. Despite his renown, he stayed but one year in his first major academic post. Details of his sojourn at the Medical College of Virginia (now part of Virginia Commonwealth University) in Richmond were divined from perusal of archival material, letters, and from the available literature. His notoriety in the field of physiology landed him a post at the Medical College of Virginia in 1854 as the chair of physiology. During a brief time here, he was able to publish his landmark monograph of 1855 on the pathways of the spinal cord "Experimental and Clinical Researches on the Physiology and Pathology of the Spinal Cord." He had a near-death experience while experimenting on himself to determine the function of the skin. It was rumored that his English was poor, his lectures unintelligible, and his scientific methods disturbing to the neighbors and that for those reasons he was asked to vacate his post. Personal communications and other accounts indicate a different view: his mixed-blood heritage and his views on slavery were unpopular in the pre-Civil War southern United States. These disparate viewpoints lend an insight into the life and career of this pioneer in modern medicine and experimental design and to the clash of science and social views. Copyright © 2011 Elsevier Inc. All rights reserved.

  8. Food, feeding, and refuelling of Red Knots during northward migration at San Antonio Oeste, Rio Negro, Argentina

    NARCIS (Netherlands)

    Gonzalez, PM; Piersma, T; Verkuil, Y; González, Patricia M.

    1996-01-01

    We studied the food and feeding ecology of Red Knots Calidris canutus rufa on an area of rocky flat, or restinga, near San Antonio Oeste in the northwest of Golfo San Matias, Provincia de Rio Negro, Argentina in March 1992. These Red Knots are on their way north, from ''wintering'' areas in Tierra

  9. Supplemental Colleges

    Data.gov (United States)

    Department of Homeland Security — The Supplemental Colleges layer attempts to capture additional Post Secondary Education campuses of colleges and universities associated with a single campus listed...

  10. Identidad y escenificación de estereotipos en Los negros de Jean Genet

    Directory of Open Access Journals (Sweden)

    Rosario León Pinto

    2016-05-01

    Full Text Available En la obra Los negros del dramaturgo francés Jean Genet nos enfrentamos, de manera muy compleja y evidentemente polémica, al problema de la identidad cultural y racial, del dominio ideológico, de la colonización y el proceso de descolonización, particularmente desde el problema de “lo negro” en el ámbito cultural del colonialismo, centrándose la obra en la problemática en torno a la identidad del ser negro, como una identidad construida por el blanco. Este conflicto identitario es presentado en escena evidenciando y tensionando el artificio teatral. De este modo, en este artículo veremos cómo se escenifica dicho conflicto mediante un uso extremo de los recursos teatrales y del motivo del teatro dentro del teatro, particularmente a partir de personajes que muestran una identidad engañosa, explicitando que son actores representando un rol (reflejo perfecto de la realidad del hombre negro que constantemente representa un papel dado por el blanco, y gestando un espacio posible para la rebelión y liberación de sus propias subjetividades detrás de los diferentes niveles de la representación. Palabra clave: Jean Genet, identidad, colonialismo, postcolonialismo, teatro dentro del teatro.   In the play The Blacks by French dramatist Jean Genet we are faced, in both a complex and controversial manner, with the issues of cultural and racial identity, ideological dominion, colonialism and the process of decolonization as seen from the perspective of “the blackness” issue against the backdrop of colonialism. The play revolves around the problem of identity of being black as one built by the white man. This conflict is staged by overtly showing and exaggerating theatrical artifices. Thus, in this paper we shall discuss how such a conflict is brought onto the stage by heightening theatrical resources, as well as the theme of a play within the play. This theme shows characters bearing an ill-defined identity, revealing them as actors

  11. VIERNES NEGRO

    Directory of Open Access Journals (Sweden)

    NÉSTOR ANDRÉS ROA MARTÍNEZ

    2011-01-01

    Full Text Available El siguiente caso tiene como objetivo presentar la situación compleja que se genera en una gran empresa manufacturera de materia prima para el sector de la construcción, cuando el sistema integrado de información que dispone Sufre un colapso (o ¿se cae el sistema¿, como se denomina comúnmente en la fecha de cierre. Esta falla genera un constreñimiento en las actividades logísticas relacionadas con el centro de distribución, unidad que despacha los pedidos a nivel nacional; impidiendo la facturación de pedidos y, por consiguiente, generando incumplimiento en las entregas, insatisfacción del cliente y posible pérdida de pedidos y no cumplimiento de la cuota de ventas de la empresa afectando los estados de resultados.

  12. Viernes Negro

    Directory of Open Access Journals (Sweden)

    Néstor Andrés Roa Martínez

    2011-07-01

    Full Text Available El siguiente caso tiene como objetivo presentar la situación compleja que se genera en una gran empresa manufacturera de materia prima para el sector de la construcción, cuando el sistema integrado de información que dispone Sufre un colapso (o “se cae el sistema”, como se denomina comúnmente en la fecha de cierre. Esta falla genera un constreñimiento en las actividades logísticas relacionadas con el centro de distribución, unidad que despacha los pedidos a nivel nacional; impidiendo la facturación de pedidos y, por consiguiente, generando incumplimiento en las entregas, insatisfacción del cliente y posible pérdida de pedidos y no cumplimiento de la cuota de ventas de la empresa afectando los estados de resultados.

  13. Sand Negro

    DEFF Research Database (Denmark)

    Thorsen, Mira Skadegård

    2016-01-01

    . The discussion centers around how persons in a shared context, who are racialized differently and have differing vantage points and perspectives, must navigate within a particular, asymmetric power relationship. I implement Gayatri Spivak’s notion of the sovereign subject to come to an understanding of some...

  14. Potencial hortícola de los zapotes negros, Diospyros spp. (Ebenaceae)

    OpenAIRE

    García Díaz, Roger Fabián; Cuevas Sánchez,Jesús Axayacatl; Colinas León, María Teresa; Basurto Peña,Francisco; Zizumbo Villarreal,Daniel

    2015-01-01

    Se exploró el potencial hortícola del género Diospyros (Ebenaceae) mediante análisis biogeográficos, climáticos, morfológicos y etnobotánicos. Los análisis geográficos permitieron identificar las áreas óptimas para la conservación y el aprovechamiento de 20 especies. Con aquellas conocidas como Zapotes Negros, D. nigra y D. Conzattii, se aplicó un análisis climático. Por último se estudió la variabilidad morfológica asociada al nivel de manejo en tres zonas de México. Veracruz y Península de ...

  15. Argentina against the Allende government, the look of daily Río Negro

    Directory of Open Access Journals (Sweden)

    Alfredo Azcoitia

    2017-05-01

    Full Text Available In the present article we address the news about the Argentine-Chilean ties that circulated through the most influential newspaper of Argentine Norpatagonia during the years of the government of Salvador Allende (1970-1973. Through the tools of discourse analysis we realize the multiple dimensions that conditioned the discourses as well as the meanings acquired by binational relations within the framework of the discourses. We consider that this type of studies contributes to deconstruct the essential glances over the other, giving account of the several edges contained in the representations that circulate through the press. This acquires greater relevance in the case of the Northern Patagonia, it is in a region whose links with Chile set up an as historical as everyday experience In this sense, the discourses that prevailed in the Río Negro built a Chile Its past and present intimately linked it to the future of Argentina and the region.

  16. Volcanic hazard map for Telica, Cerro Negro and El Hoyo volcanoes, Nicaragua

    Science.gov (United States)

    Asahina, T.; Navarro, M.; Strauch, W.

    2007-05-01

    A volcano hazard study was conducted for Telica, Cerro Negro and El Hoyo volcanoes, Nicaragua, based on geological and volcanological field investigations, air photo analyses, and numerical eruption simulation. These volcanoes are among the most active volcanoes of the country. This study was realized 2004-2006 through technical cooperation of Japan International Cooperation Agency (JICA) with INETER, upon the request of the Government of Nicaragua. The resulting volcanic hazard map on 1:50,000 scale displays the hazards of lava flow, pyroclastic flows, lahars, tephra fall, volcanic bombs for an area of 1,300 square kilometers. The map and corresponding GIS coverage was handed out to Central, Departmental and Municipal authorities for their use and is included in a National GIS on Georisks developed and maintained by INETER.

  17. A survey of necrophagous blowflies (Diptera: Oestroidea in the Amazonas-Negro interfluvial region (Brazilian Amazon

    Directory of Open Access Journals (Sweden)

    Eduardo Amat

    2016-03-01

    Full Text Available ABSTRACT The fauna of blowflies (Calliphoridae and Mesembrinellidae in three localities of primary Amazon forest coverage in the Amazonas-Negro interfluvial region was assessed. A total of 5066 blowflies were collected, with Chloroprocta idiodea being the most abundant species (66.3%. A difference in species richness between the localities ZF2 and Novo Airão was observed. Comparison among sampled sites revealed no considerable variation in fauna composition, except for the species Eumesembrinella benoisti (Séguy 1925 and Hemilucilia sp., whose occurrence was observed only in a single locality. Apparently, Amazon rivers are not efficient geographical barriers to influence the current composition of necrophagous blowfly assemblages. Also, most of the blowfly species did not show a noticeable specificity for any specific forest among the interfluvial areas of the ombrophilous forest. Finally, an updated checklist of necrophagous blowfly species of the Amazonas state in Brazil is presented.

  18. Jovens negros em conflito com a lei: escola e trajetórias

    Directory of Open Access Journals (Sweden)

    Vilma Aparecida de Pinho Pinho

    2011-12-01

    Full Text Available O trabalho busca investigar as trajetórias de vida e de escolarização de jovens negros em processo de “ressocializacao", visando averiguar os fatores sociais que os levaram a ser considerados em conflito com alei. As analises foram realizadas a luz doaporte teórico das relações etnico-raciais,com ênfase nos enfoques teorico-metodologicos da dialética e da fenomenologia. Os resultados indicam que as condições de pobreza material e não material herdadas de gerações anteriores e o contexto escolar contribuem fortemente para a construção da situação atual desses jovens, que enfrentam a naturalização do racismo, evidenciada em diferentes momentos das narrativas produzidas pelos componentes do universo empírico desta pesquisa.

  19. [Yanomami children's nutritional status in the middle Rio Negro, Brazilian Amazônia].

    Science.gov (United States)

    Istria, Jacques; Gazin, Pierre

    2002-01-01

    The nutritional status of 290 Yanomami Amerindians children, from birth to about six year-olds, living in the middle Rio Negro, Brazilian Amazonia, has been studied in 1998 and 1999 using the weight-for-height. All of them were of low stature. Twenty malnourished (7%), defined as below two standard deviations of NCHS' data, have been observed. Five of them showed a severe malnutrition (

  20. Queering I Am Not Your Negro: or Why We Need James Baldwin More Than Ever

    Directory of Open Access Journals (Sweden)

    Robert J. Corber

    2017-10-01

    similar effect on audiences. However, even as it succeeds in reanimating Baldwin’s voice for a new political era, I Am Not Your Negro inadvertently exposes the difficulty of fully capturing or honoring the writer’s complex legacy. As scholars have long noted, interest in Baldwin’s life and work tends to divide along racial and sexual lines, and Peck’s documentary is no exception. The filmmaker privileges Baldwin’s blackness over his queerness by overlooking the parts of The Devil Finds Work and No Name in the Street in which the writer’s queerness figures prominently.

  1. Das bruxas, dos índios, dos negros e dos jovens da Febem

    OpenAIRE

    Sylvia Leser de Mello

    2001-01-01

    Este artigo visa discutir os temas Pesquisa e Direitos Humanos, partindo da definição do que pretende a Ciência, suas limitações e momentos seus a serviço de condenações de bruxas e ateus. Trata-se de levantar a questão da 'parcialidade' da Ciência e das formas de exclusão que ela ajudou a gerar e manter face aos criminosos, aos loucos, aos negros e, sem dúvida, aos jovens das camadas populares que são institucionalizados na FEBEM. E, na tentativa de resistência a se deixar levar pelo que de ...

  2. Das bruxas, dos índios, dos negros e dos jovens da Febem

    Directory of Open Access Journals (Sweden)

    Sylvia Leser de Mello

    2001-01-01

    Full Text Available Este artigo visa discutir os temas Pesquisa e Direitos Humanos, partindo da definição do que pretende a Ciência, suas limitações e momentos seus a serviço de condenações de bruxas e ateus. Trata-se de levantar a questão da 'parcialidade' da Ciência e das formas de exclusão que ela ajudou a gerar e manter face aos criminosos, aos loucos, aos negros e, sem dúvida, aos jovens das camadas populares que são institucionalizados na FEBEM. E, na tentativa de resistência a se deixar levar pelo que de nefasto existe na mercantilização da Ciência hoje, buscar radicalizar a exigência de defesa dos Direitos Humanos.

  3. Race, Apology, and Public Memory at Maryland's Hospital for the 'Negro' Insane

    Directory of Open Access Journals (Sweden)

    Zosha Stuckey

    2017-03-01

    Full Text Available To respond to a recent demand of the ACLU of Maryland, and to augment theories from Disability Incarcerated (2014 about the convergence of race, disability, and due process (or lack thereof, this essay analyzes the extent to which racism informed the creation of Maryland's Hospital for the 'Negro' Insane (Crownsville Hospital. In order to understand the extent of racism in Crownsville's earlier years, I will take into account 14 categories within conditions of confinement from 1921-1928 and compare them to the nearby, white asylum. Ultimately, the hospital joins the ranks of separate and unequal (Plessy vs. Ferguson institutions founded alongside a rhetoric of fear that the Baltimore Sun daily paper deemed "a Black invasion" of the city of Baltimore. Even more, I add to public memory of this racialized space invoking the rhetorical frame, as Kendall Phillips advises, of responsibility and apology (versus absolution within the context of present-day racial justice movements.

  4. Medicinal animals: knowledge and use among riverine populations from the Negro River, Amazonas, Brazil

    Directory of Open Access Journals (Sweden)

    Andréa Leme da Silva

    2008-12-01

    Full Text Available The article documents the use of animals in the home medicine among riverine populations from the Negro River, State of Amazonas, Brazil. Data were collected through interviews and observations concerning to the knowledge and everyday practices of the use of medicinal animals. About 60 animal species are known with medicinal purposes. The knowledge is well distributed between sexes (men and women and localities (urban and rural. The use of medicinal animals is embedded in etiological concepts and involves a complex cosmological vision of the cure process. The rural exodus and the facilitated access to the western medicine may be promoting the loss of the traditional knowledge, which can be mitigated through the valorization and transmission of this knowledge to the future generations.

  5. La novelística feminista de Carmen Laforet y el género negro

    Directory of Open Access Journals (Sweden)

    Johnson, Roberta

    2006-08-01

    Full Text Available In her five long novels, Carmen Laforet consistently attempted to find new narrative means of framing a feminist message. There exist studies of her use of the Bildungsroman, the Gothic, and Expressionism in Nada. This essay focuses on elements of detective fiction, especially the noir subgenre, in Laforet’s novelistic production, concentrating on Al volver la esquina published posthumously in 2004. The masculine protagonistnarrator moves in a world that is akin to those of North American noir films and novels in order to reveal his dilemma as a man of traditional Spanish masculinist values in a Spain that is beginning to experience the influence of other countries where gender roles are changing.En sus cinco novelas largas, Carmen Laforet intentaba consistentemente encontrar nuevos modos narrativos para enmarcar un mensaje feminista. Ya se ha estudiado su incorporación de la Bildungsroman, lo gótico y lo expresionista en Nada. Este ensayo se enfoca en los elementos de la novela detectivesca, sobre todo el subgénero negro, en la novelística de Laforet. Se concentra en Al volver la esquina publicada póstumamente en 2004, y en la que el protagonista- narrador masculino se mueve en un mundo que se asemeja a los del cine y novela negros norteamericanos, para revelar su dilema de hombre de valores tradicionales masculinistas en una España que está empezando a sentir la influencia de otros países donde los papeles de los géneros sexuales están cambiando.

  6. Photosynthesis within Mars' volcanic craters?: Insights from Cerro Negro Volcano, Nicaragua

    Science.gov (United States)

    Rogers, K. L.; Hynek, B. M.; McCollom, T. M.

    2011-12-01

    Discrete locales of sulfate-rich bedrocks exist on Mars and in many cases represent the products of acid-sulfate alteration of martian basalt. In some places, the products have been attributed to hydrothermal processes from local volcanism. In order to evaluate the habitability of such an environment, we are investigating the geochemical and biological composition of active fumaroles at Cerro Negro Volcano, Nicaragua, where fresh basaltic cinders similar in composition to martian basalts are altered by acidic, sulfur-bearing gases. Temperatures at active fumaroles can reach as high as 400°C and the pH of the steam ranges from Cyanobacteria and Ktedonobacteria, however Actinobacteria, alpha-Proteobacteria and Acidobacteria were also identified. Many of the cyanobacterial sequences were similar to those of the eukaryotic Cyanidiales, red algae that inhabit acidic, geothermal environments. Many of sequences related to Ktedonobacteria and Actinobacteria have also been found in acid mine drainage environments. The Archaeal community was far less diverse, with sequences matching those of unclassified Desulfurococcales and unclassified Thermoprotei. These sequences were more distant from isolated species than the bacterial sequences. Similar bacterial and archaeal communities have been found in hot spring environments in Yellowstone National Park, Greenland, Iceland, New Zealand and Costa Rica. Some of Mars' volcanoes were active for billions of years and by analogy to Cerro Negro, may have hosted photosynthetic organisms that could have been preserved in alteration mineral assemblages. Even on a generally cold and dry Mars, volcanic craters likely provided long-lived warm and wet conditions and should be a key target for future exploration assessing habitability.

  7. Negros e indios en el obraje de San Ildefonso. Real Audiencia de Quito. 1665-1666

    Directory of Open Access Journals (Sweden)

    Tardieu, Jean Pierre

    2012-08-01

    Full Text Available The concentration space of the textile mills in the colonial Andean world aggravated the tension between the indigenous workers and the black slaves. Ignoring the protective legislation issued in favor of the natives, the owners took advantage of the inversion of social values that was widely accepted and the thirst for compensation brought about by the frustrations of slavery, that turned the Indians into «slaves of the slaves», thus turning the blacks of the mill into true servile thugs. We will study the mechanisms of the system and its consequences in the second half of the 17th century through the case of the San Ildefonso mill, located near Ambato, in modern-day Ecuador.

    El espacio concentracionario de los obrajes textiles del mundo andino colonial exacerbó las tensiones entre los trabajadores indígenas y los esclavos negros. Haciendo caso omiso de la legislación protectora emitida a favor de los naturales, los dueños se valieron de la inversión de los valores sociales admitida por muchos y de la sed de compensación suscitada por las frustraciones de la esclavitud, que hacían de los indios los «esclavos de los esclavos», para transformar a los negros de los obrajes en verdaderos matones serviles. Estudiaremos los mecanismos del sistema y sus consecuencias en la segunda mitad del siglo XVII a través del caso del obraje de San Ildefonso, situado cerca de Ambato, en el Ecuador actual.

  8. ELEMENTOS METODOLOGICOS INICIALES EN UN PROCESO DE INVESTIGACION - EXTENSION. EL CASO DE CAÑO NEGRO

    Directory of Open Access Journals (Sweden)

    Ligia Martín José Francisco Miranda

    2012-11-01

    Full Text Available Aprovechando la realización de este seminario, hemos querido presentar ante los extensionistas de nuestra Facultad, unas primeras notas acerca del "Proyecto Piloto para la Gestión Productiva-Ambiental con los Pobladores de Caño Negro, Refugio de Vida Silvestre". El propósito de este trabajo inicial, es poner en discusión algunos de los elementos metodológicos que hemos ubicado, al momento de arrancar con un proyecto de investigación-extensión, que pretende recurrir a los procedimientos desarrollados y utilizados en los procesos de INVESTIGACION PARTICIPATIVA, INVESTIGACION ACCION. Además y haciendo eco de las intensiones de este seminario, se espera sirva de elemento para la reflexión conjunta de aspectos de esta naturaleza, que a la postre resultan ser problemas comunes o al menos semejantes, y que además, están en el tapete de la discusión y el análisis. Como la mayoría de ustedes saben, se trata del proyecto de extensión que las escuelas de Sociología, Ambientales, Planificación y Promoción Social y Geografía, iniciaron en marzo de este año en Caño Negro, distrito del cantón de Los Chiles, Alajuela, el cual describiremos con más detalle a continuación.

  9. Análise biogeográfica da avifauna da região oeste do baixo Rio Negro, amazônia brasileira Biogeographical analysis of the avifauna in the lower western Rio Negro region in the Brazilian Amazon

    Directory of Open Access Journals (Sweden)

    Sérgio H. Borges

    2007-12-01

    Full Text Available Neste estudo é realizada uma análise biogeográfica detalhada da avifauna da Amazônia Central a oeste do Rio Negro, região onde está localizado o Parque Nacional do Jaú (PNJ. As distribuições geográficas de 383 táxons (espécies e subespécies de aves registradas no PNJ foram analisadas através de métodos biogeográficos qualitativos e quantitativos (análise de agrupamento e análise de parcimônia de endemismo. A avifauna do PNJ é fortemente influenciada pelas regiões noroeste e oeste da bacia amazônica. Foram identificadas três unidades biogeográficas e o PNJ se agrupa com sítios localizados no alto Rio Orinoco e na Guiana. De modo similar, o PNJ se agrupa com o sítio do alto Rio Orinoco tendo a Guiana como grupo-irmão no cladograma de área com maior suporte. Diferentes sub-grupos de espécies revelaram cladogramas de áreas com variadas topologias, sugerindo complexos cenários de diversificação da avifauna amazônica. Estes cenários biogeográficos podem ter sido influenciados por eventos geológicos ocorridos durante o Mioceno e Pleistoceno. Neste estudo foi identificada uma área de endemismo não descrita para a Amazônia - a área de endemismo Rio Negro. A avifauna da região do PNJ, além de ser representativa dos setores noroeste e oeste da Amazônia, possui táxons de distribuição restrita à região central da Amazônia, reforçando ainda mais sua importância na proteção da biodiversidade amazônica.This study makes a detailed biogeographical analysis of Central Amazon avifauna west of the Rio Negro, where Parque Nacional do Jaú (PNJ is located. The geographical distribution of 383 bird taxa (species or subspecies recorded in PNJ was analyzed through qualitative and quantitative biogeographic methods (cluster analysis and parsimony analysis of endemicity. Results showed that the avifauna of PNJ is strongly influenced by the northwestern and western regions of the Amazon Basin. Three biogeographic units

  10. Artigo: Movimento negro: das denúncias do racismo à prática de políticas públicas

    OpenAIRE

    Nogueira, João Carlos; NUCLEO DE ESTUDOS NEGROS

    2004-01-01

    Analyzing the role of the Negro Movement in the process of democratization and bringing to light the structural and institutional racism in Brazil, this paper shows that the 1990s were central for the constitution of a more articulated identity of the Negro Movement at the national level. This has a positive impact for public visibility of the racial question in the country. In response to popular pressure, the State has initiated policies against racism and in favor of the ...

  11. Use of Expedited Partner Therapy for Sexually Transmitted Diseases in College and University Health Centers in the United States, 2011-2012.

    Science.gov (United States)

    Cramer, Ryan; Martinez, Nina; Roberts, Craig; Habel, Melissa A; Leino, E Victor; Leichliter, Jami S

    2015-10-01

    We examined expedited partner therapy for chlamydia and gonorrhea in college and university health centers by institutional and policy characteristics. Expedited partner therapy awareness and use was low (44.1% used), did not differ by institutional characteristics, and differed by policy environment. Our findings suggest missed opportunities for sexually transmitted disease prevention in college and university health centers.

  12. O povo das águas pretas: o caboclo amazônico do rio Negro The people of the black waters: the Amazon caboclo of the Negro river

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    Fernando Sergio Dumas dos Santos

    2007-12-01

    Full Text Available Apresenta uma descrição historicamente contextualizada do povo que vive ao longo do rio Negro, afluente brasileiro da bacia do Amazonas. Processos de constituição da população e das comunidades são identificados, nas fontes, a partir da experiência social cotidiana dos partícipes do processo histórico estudado, o qual percorre o século XX até a metade de sua última década. No rio Negro, o contato entre a sociedade brasileira e os diversos grupos indígenas que ali viviam, autóctones e catequizados, foi determinante para a constituição da identidade cabocla do território. A partir do último quartel do século XIX, a nomenclatura consolidou-se e vulgarizou-se, tendo na empresa extrativista um forte elemento propagador, em um contexto em que predominam as relações sociais constituintes da cultura do barracão.The article constructs a historically contextualized description of the people who live along the Negro river, a Brazilian affluent in the Amazon basin. Drawing on information about the daily social experience of the participants from the dawn of the twentieth century through the mid-1990s, the processes by which the population and communities took shape are identified. On the Negro river, contact between Brazilian society and the autochthonous, catechized indigenous groups living there was determinant in shaping the territory's caboclo identity. Starting in the last quarter of the nineteenth century, this nomenclature took root and entered the popular lexicon. Extractivist activities played a major role in spreading the term, within a context where the predominant social relations derived from the 'cultura do barracão'.

  13. Increasing College Access: A Look at College Readiness from the Experiences of Foster Youth

    Science.gov (United States)

    Hutchins, Demetrees Lee

    2017-01-01

    Fewer than 50% of all foster youth in the United States graduate from high school by the age of 18 and only 20% of those high school graduates attend college. There are many barriers that impact the college-going rates of foster youth. Past studies on college attendance among foster youth rarely look at college readiness experiences from the…

  14. Identidades en movimiento: familias chilenas en la fruticultura del Alto Valle de Río Negro, Argentina Identities in movement: chilean families in the fruit production of the Alto Valle de Río Negro, Argentina

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    Verónica Trpin

    2007-12-01

    Full Text Available Este artículo, basado en el trabajo de campo realizado en áreas rurales del Alto Valle de Río Negro, Argentina, desde el año 1999, tiene como propósito presentar las relaciones en las cuales se insertan hombres y mujeres chilenas que residen y trabajan en "chacras" destinadas a la producción frutícola. Las diferentes actividades en las chacras se organizan según el sexo y la edad, definiéndose una segmentación del mercado de trabajo en la que se ven involucrados los diferentes miembros de la familia. Como desarrollaré, ser trabajadores chilenos en la fruticultura del Alto Valle de Río Negro reproduce una identidad étnica y nacional en el seno de la cotidianeidad familiar y laboral.This article, based on field work conducted in rural areas of the Alto Valle de Río Negro, Argentina, from 1999 on, analyzes the relations in which Chilean men and women who reside and work in small farms destined to fruit production are inserted. The different activities in the small farms are organized according to sex and age, circumscribing a segment of the labor market in which different members of the family are involved. As I will demonstrate, to be a Chilean worker in the fruit growing region of the Alto Valle is to reproduce an ethnic and national identity through work routines mediated by family relations.

  15. Effects of Resistance Training on Muscle Strength, Endurance, and Motor Unit According to Ciliary Neurotrophic Factor Polymorphism in Male College Students

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    Ae-Rim Hong, Sang-Min Hong, Yun-A Shin

    2014-09-01

    Full Text Available Changes in muscle mass and strength across the adult age span are variable and related to the ciliary neurotrophic factor (CNTF genotype. In particular, a single CNTF haplotype (1357 G→A is important for neuronal and muscular developments and may be associated with muscle strength response to resistance training. We examined whether CNTF genotype differentially influences the effect of resistance training on neuromuscular improvement in male college students. Resistance training of the upper extremities comprised 3 sets at 75%–85% intensity per 1 repetition maximum, 3 times a week, for a total of 8 weeks. We measured isokinetic muscle function of the elbow joint with regard to strength (60°/s and endurance (180°/s by using an isokinetic dynamometer. The biceps brachii (BB and brachioradialis muscles were studied using surface electromyography with spike-triggered averaging to assess surface-detected motor unit potential (SMUP area. After resistance training, the SMUP of the BB increased significantly at 60°/s (p < 0.05, but no difference in the CNTF genotype was observed. The SMUP of the BB at 180°/s increased significantly in the GG/AA genotype group compared with that in the GA genotype group (p < 0.05. The average power of the elbow flexor at 180°/s increased significantly after resistance training (p < 0.05, but again, no difference in the CNTF genotype was observed. Thus, improvements in muscle strength and endurance may have resulted directly from resistance training rather than from genetic factors related to nerves in muscle tissue.

  16. Tornar-se negro: trajetÃrias de vida de professores universitÃrios no CearÃ

    OpenAIRE

    Maria Auxiliadora de Paula GonÃalves Holanda

    2009-01-01

    A pesquisa trata dos processos de construÃÃo de subjetividades dos professores universitÃrios negros da Universidade Federal do Cearà (UFC) ao longo de suas trajetÃrias de vida. O caminho percorrido rumo ao objeto de anÃlise foi conhecer e analisar as construÃÃes identitÃrias de professores dessa universidade nas experiÃncias do tornar-se negro, vivenciadas desde a infÃncia atà o ingresso no mundo do trabalho, no contÃnuo processo de identificaÃÃo e negociaÃÃo prÃprio da formaÃÃo humana. O fo...

  17. A field study of the confluence between Negro and Solimões Rivers. Part 1: Hydrodynamics and sediment transport

    Science.gov (United States)

    Gualtieri, Carlo; Filizola, Naziano; de Oliveira, Marco; Santos, Andrè Martinelli; Ianniruberto, Marco

    2018-01-01

    Confluences are a common feature of riverine systems, where are located converging flow streamlines and potential mixing of separate flows. The confluence of the Negro and Solimões Rivers ranks among the largest on Earth and its study may provide some general insights into large confluence dynamics and processes. An investigation was recently conducted about that confluence in both low and high-flow conditions using acoustic Doppler velocity profiling (ADCP), water quality sampling and high-resolution seismic data. First, the study gained insights into the characterization of the basic hydrodynamics parameters about the confluence as well as of those affecting sediments transport. Second, the analysis of the results showed that common hydrodynamic features noted in previous confluence studies were herein observed. Finally, some differences between low-flow and relatively high-flow conditions about the transfer of momentum from the Solimões to the Negro side of the Amazon Channel were identified.

  18. Drugs + HIV, Learn the Link

    Medline Plus

    Full Text Available ... E-Cigs Other Drugs Related Topics Addiction Science Adolescent Brain Comorbidity College-Age & Young Adults Criminal Justice ... Youth and Families The American Academy of Child & Adolescent Psychiatry (AACAP) The United Negro College Fund, Special ...

  19. Drugs + HIV, Learn the Link

    Medline Plus

    Full Text Available ... Adolescent Psychiatry (AACAP) The United Negro College Fund, Special Programs Latino Commission on AIDS Azteca America Foundation/ ... Montgomery College Center for the Advancement of Distance Education University of Southern California, Maternal Child & Adolescent Program ...

  20. Application of a simulation model of water quality in the improvement of high basin of Rio Negro - Antioquia

    International Nuclear Information System (INIS)

    Molina Perez, Francisco; Wills Toro, Alvaro; Ramirez Cardona, Juan F

    1995-01-01

    The present article consigns the application of a model of water quality: QUAL2E, of the high basin of the Rio Negro in the East Antioquia. The system Rio Negro was divided in 16 homogeneous tracts, in which 15 seating capacity stations and sampling were located, this way 5 in the Rio Negro and 10 in the main flowing gulches. In the period October of 1993 to May of 1994, they were carried out 10 samplings of quality of the water, coupling this way, the basic data for the hydrological scenarios of summer, intermission and winter. Later on it was carried out the calibration of the pattern for the summer and the validation for winter; the parameters were refined especially suspended solids, dissolved oxygen and DBO5. The use of the pattern allows carrying out the prospective for the quality of the water in the region facilitating a better one taking of decisions in the related with the use of the resource and actions of prevention and control

  1. Fazer História, Fazer Sentido: Associação Cultural do Negro (1954-1964 Make History, Make Sense: Associação Cultural do Negro (1954-1964

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    Mário Augusto Medeiros da Silva

    2012-01-01

    Full Text Available Discutir-se-ão os anos iniciais de atuação da Associação Cultural do Negro, criada por antigos ativistas e intelectuais da imprensa negra paulistana. Naquele perío­do, ela conseguiu promover ações, jornais, livros e atos públicos visando debater o papel do negro na formação da sociedade brasileira, situando-o num lugar alternativo ao da subalternidade imposta pelo fim da escravidão. Foi apoiada por intelectuais, escritores, sociólogos, ativistas (nacionais e estrangeiros interessados pelos problemas do grupo negro no Brasil e no continente africano, como Florestan Fernandes, Sérgio Milliet, José Mindlin, Henrique Losinkas Alves, Léon Gontran Damas e os intelec­tuais da revista Présence Africaine, entre outros. O interesse do artigo é pensar os alcances e limites dessa associação e suas atividades, pouco refletida pela bibliografia conhecida sobre relações raciais e história de movimentos negros no Brasil.It will be discussed the initials years of Associação Cultural do Negro, created by olders activists and intelectuals of black press in São Paulo. During that period, it was able to promote actions, newspapers, books and public events aimed at discussing the role of blacks in the Brazilian society formation, placing it in an alternative place of subordination imposed by the end of slavery. It was supported by intellectuals, writers, sociologists, activists interested in the problems of the black group in Brazil and Africa, as Florestan Fernandes, Sergio Millet, José Mindlin, Henrique Losinkas Alves, Léon Gontran Damas and intellectuals of the journal Présence Africaine, among others. The interest of the paper is to discuss the scope and limits of this association and its activities, not discussed by the literature on race relations and history of black movements in Brazil.

  2. Degradabilidad ruminal de la planta de sorgo negro forrajero (sorghum almum en diferentes etapas de crecimiento

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    Carlos Boschini

    2001-01-01

    Full Text Available Degradabilidad ruminal de la planta de sorgo negro forrajero (Sorghum almum en diferentes etapas de crecimiento. El trabajo se llevó a cabo con el propósito de conocer la degradabilidad ruminal de la materia seca del sorgo negro forrajero, cultivado en una zona alta de Costa Rica. Se tomaron muestras en diferentes etapas de crecimiento de la planta. El estudio se realizó en la Estación Experimental "Alfredo Volio Mata" de la Universidad de Costa Rica. El cultivo fue sembrado con 18 kg/ha de semilla (88% semilla pura germinable, distribuida a chorro continuo en surcos distanciados a 70 cm. Se fertilizó con 244 kg de la fórmula comercial 10-30-10 (N2, P2O5, K2O y a las seis semanas se aplicaron 45,5 kg/ha de nitrógeno. El primer muestreo se realizó a los 24 días de edad y los siguientes, cada 14 días, hasta los 150 días. Se determinó la degradabilidad potencial de la materia seca en las hojas, tallos, panojas. La degradabilidad potencial de la planta entera disminuyó de 90 a 75% conforme aumentó la edad durante los primeros 94 días. En el tallo, la fracción soluble disminuyó de 32 a 23%, mientras que la hoja bajó de 30 a 16%. La fracción degradable en el tallo disminuy ó de 57 a 46% con el desarrollo de la planta, en tanto que en la hoja aumentó de 56 a 69%. La velocidad de degradaci ón del tallo fue de 4,7 %/h a los 52 días y en la hoja de 8,6 %/h. De 66 a 94 días fue de 2,6%/h en el tallo y en la hoja de 5,4 %/h, 3,3 %/h y 3,8 %/h a los 66, 80 y 94 días, respectivamente

  3. La Pachahuara de Acolla: una danza de los esclavos negros en el valle de Yanamarca

    Directory of Open Access Journals (Sweden)

    1976-01-01

    Full Text Available La danse 'Pachahuara' se pratique pendant la Noël dans la vallée du rio Mantaro (Pérou central et son origine remonte à l'arrivée d'esclaves noirs dans la sierra péruvienne (Jauja, 1533. La danse décrite est celle de la communauté d'Acolla (N de Huancayo}. Une description des costumes des différents personnages est donnée avant de passer à la chorégraphie proprement dite. Deux phases caractérisent le pachahuara, avec une musique bien différenciée. Une tentative d'interprétation suit la description, s'appuyant sur des données historiques concernant l'établissement d'esclaves noirs dans la vallée du Mantaro la danse symboliserait l'esclavitude puis la liberté retrouvée. El baile 'Pachahuara' se practica durante la Navidad en el valle del río Mantaro (Perú Central y su origen se remonta a la llegada de esclavos negros en la sierra peruana (Jauja, 1533. La danza descrita es la de la comunidad de Acolla (N de Huancayo. Una descripción de los trajes de los distintos personajes ha sido dada antes de pasar a la coreografía propiamente dicha. Dos fases caracterizan la pachahuara, con una música bien diferenciada. Una tentativa de interpretación sigue a la descripción, basándose en datos históricos referentes al establecimiento de esclavos negros en el valle del Mantaro la danza simbolizaría la esclavitud y después la libertad recuperada. The dance 'Pachahuara' is practiced during the Christmas times in the valley of the Rio Mantaro (Central Peru and its origin dates back to the coming of the black slaves in the peruvian sierra (Jauja, 1533. The dance described is that of the Acolla community (North of Huancayo. A description of the different personnages'clothes is given before analyzing the choreography itself. Two phases characterize the pachahuara, with a well differenced music. An attempt of interpretation is following the description, basing it upon historical referring concerning the establishment of the black slaves

  4. Intense Seismic Activity at Chiles and Cerro Negro Volcanoes on the Colombia-Ecuador Border

    Science.gov (United States)

    Torres, R. A.; Cadena, O.; Gomez, D.; Ruiz, M. C.; Prejean, S. G.; Lyons, J. J.; White, R. A.

    2015-12-01

    The region of Chiles and Cerro Negro volcanoes, located on the Colombian-Ecuadorian border, has experienced an ongoing seismic swarm beginning in Aug. 2013. Based on concern for local residents and authorities, a cooperative broadband monitoring network was installed by the Servicio Geológico Colombiano in Colombia and the Instituto Geofísico of the Escuela Politécnica Nacional in Ecuador. Since November 2013 more than 538,000 earthquakes were recorded; although since May 2015 the seismicity has decreased significantly to an average of 70 events per day. Three large earthquake swarms with increasing energy occurred in Aug.-Oct. 2013, March-May 2014, and Sept.-Dec. 2014. By the end of 2014, roughly 400 earthquakes greater than M 3 had occurred with a maximum rate of 8000 earthquakes per day. The largest earthquake was a 5.6 ML on Oct. 20, 2014. This event produced an InSAR coseismic deformation of ~23 cm (S. Ebmeier, personal communication). Most events are typical brittle failure volcano-tectonic (VT) earthquakes that are located in a cluster beneath the southern flank of Chiles volcano, with depths between 1.5 and 10 km. Although the great majority of earthquakes are VT, some low-frequency (LF, ~0.5 Hz) and very-low-frequency (VLF) events have occurred. Particle motion analysis suggests that the VLF source migrated with time. While a VLF on Oct. 15, 2014 was located south of Chiles volcano, near the InSAR source, the VLF registered on Feb. 14, 2015 was likely located very close to Chiles Volcano. We infer that magma intrusion and resulting fluid exsolution at depths greater than 5 km are driving seismicity in the Chiles-Cerro Negro region. However earthquakes are failing in a manner consistent with regional tectonics. Relative relocations reveal a structure consistent with mapped regional faults. Thus seismicity is likely controlled by an interaction of magmatic and tectonic processes. Because the regional stress field is highly compressional and the volcanoes

  5. College Choice Factors of Latino Community College Students

    Science.gov (United States)

    Zayas-DeCouto, Georgina

    2016-01-01

    In the United States, a postsecondary education is significant for economic success. The future job markets require advanced certifications in order to compete in the global market. The federal government emphasizes this importance with the completion goal to increase the number of college graduates by the year 2020. Community colleges have been…

  6. College Explorer.

    Science.gov (United States)

    Ahl, David H.

    1985-01-01

    The "College Explorer" is a software package (for the 64K Apple II, IBM PC, TRS-80 model III and 4 microcomputers) which aids in choosing a college. The major features of this package (manufactured by The College Board) are described and evaluated. Sample input/output is included. (JN)

  7. Cimarrones africanos e indios en la frontera española con los Estados Unidos. El caso de los Seminoles negros de La Florida

    Directory of Open Access Journals (Sweden)

    Jane Landers

    2003-12-01

    Full Text Available This essay explores Andrew Jackson's bloody victories over the Red Stick Creeks and Seminoles of Florida and the triumph of "the White man's republic", with a particular interest in the participation of persons of African descent. The people who would become the Seminoles moved into Florida from Georgia and Alabama in the eighteenth century to fill the vacuum created by the exodus or extinction of Florida's indigenous nations. Initially the Seminoles were staunch allies of the British, but in the late eighteenth century, Chief Payne and Payne’s successors, Micanopy and Bowlegs, reshaped Seminole foreign policy and became allies of the Spanish government.Under their leadership the Seminoles also accepted into their lands many slaves who had run away from the United States and who lived in a sort of feudal arrangement with their "masters" and intermarried with them. These blacks recognized that Anglo rule would return them to slavery, so they, too, became fierce enemies of the Americans and allies of the Spaniards. For about a half century black and blood Seminoles struggled to maintain their autonomy on the volatile Southern frontier, but the United States was firmly committed to an expansionist foreign policy. Its interventions were motivated by territorial ambition, by the lingering fear that Britain would displace the weakened Spanish regimes in the Southeast, and by racial politics. The very success of the Spanish/ Indian/black alliance, in effect, ensured further intervention by Americans. The War of 1812 and the simultaneous Creek War of 1813-14 evolved into a long-term effort to push the Creeks, Seminoles, and blacks out of their settlements in western and central Florida, and eventually to drive out the Spaniards as well. Jackson led the first Seminole War in 1818 and in 1821, when the United States acquired Florida, as governor of the new territorial government he began the removal of the fugitive Creeks, Seminoles, and free blacks

  8. Sociohistoire des Black Studies Departments Historia Social de los Departamentos de Estudios Negros Black Studies Departments: A Sociohistory

    Directory of Open Access Journals (Sweden)

    Caroline Rolland-Diamond

    2012-06-01

    émédiable du fait de l’évolution politique et sociale du pays vers des positions conservatrices mêlant idéal social de colorblindness (l’indifférence à la couleur de peau et valorisation du progrès individuel.This article examines the historical conditions that shaped the development of Black Studies departments within American universities in the late 1960s and 1970s, focusing on the initial challenges these new institutions faced. It begins by viewing these circumstances in relation to the rise of Black Power ideology on campuses throughout the United States in the late 1960s, highlighting the manner in which ideas of black nationalism aimed at improving ghetto conditions were adapted to university institutions that had remained until then largely unaffected by years of student protests. Based on several case studies, my analysis seeks to highlight the different strategies adopted by students and faculty members to promote the institutional legitimacy of Black Studies departments in a context of conservative backlash during the Nixon presidency. I argue that practical exigencies related to the drive for institutional acceptance and financial viability forced these actors to abandon their nationalist or community orientations and to move towards a more traditional academic outlook—a change that became irreversible within an increasingly conservative national political landscape dominated by ideals of colorblindness and individualism.Este artículo examina las condiciones históricas que permitieron el desarrollo de los departamentos especializados en estudios sobre los afroamericanos en las universidades americanas durante los años 1960 y 1970. El análisis se centra en los desafíos y retos que inicialmente existieron en ese proceso de institucionalización. Concretamente, se analiza el contexto histórico de la llegada de la ideología del Black Power a los campus americanos a finales de 1960 (conjunción de tres factores decisivos; la desilusión causada por

  9. Subsurface Connections and Magma Mixing as revealed by Olivine- and Pyroxene-Hosted Melt Inclusions from Cerro Negro Volcano and the Las Pilas-El Hoyo Complex, Nicaragua.

    Science.gov (United States)

    Venugopal, S.; Moune, S.; Williams-Jones, G.

    2015-12-01

    Cerro Negro, the youngest volcano in the Central American Volcanic Belt, is a polygenetic cinder cone with relatively frequent explosive basaltic eruptions. Las Pilas, on the other hand, is a much larger and older complex with milder and less frequent eruptions. Based on historical data, these two closely spaced volcanoes have shown concurrent eruptive behavior, suggesting a subsurface connection. To further investigate this link, melt inclusions, which are blebs of melt trapped in growing crystals, were the obvious choice for optimal comparison of sources and determination of pre-eruptive volatile contents and magmatic conditions. Olivine-hosted inclusions were chosen for both volcanoes and pyroxene-hosted inclusions were also sampled from Las Pilas to represent the evolved melt. Major, volatile and trace elements reveal a distinct geochemical continuum with Cerro Negro defining the primitive end member and Las Pilas representing the evolved end member. Volatile contents are high for Cerro Negro (up to 1260 ppm CO2, 4.27 wt% H2O and 1700 ppm S) suggesting that volatile exsolution is likely the trigger for Cerro Negro's explosive eruptions. Las Pilas volatile contents are lower but consistent with degassing and evolutionary trends shown by major oxides. Trace element contents are rather unique and suggest Cerro Negro magmas fractionally crystallize while Las Pilas magmas are the products of mixing. Magmatic conditions were estimated with major and volatile contents: at least 2.4 kbar and 1170 °C for Cerro Negro melts and 1.3 kbar and 1130 °C for Las Pilas melts with an overall oxygen fugacity at the NNO buffer. In combination with available literature data, this study suggests an interconnected subsurface plumbing system and thus Cerro Negro should be considered as the newest vent within the Las Pilas-El Hoyo Complex.

  10. El descubrimiento de la ruta terrestre entre Buenos Aires y el Río Negro

    Directory of Open Access Journals (Sweden)

    Gorla, Carlos María

    1995-12-01

    Full Text Available Not available.

    A raíz de los grandes malones de I780, Vértiz activó los trabajos destinados a la defensa del territorio, al mismo tiempo que procuró establecer relaciones pacificas con las parcialidades indígenas que merodeaban la frontera bonaerense. La expedición de Zizur tuvo como objeto negociar la paz con el cacique Lorenzo y, a su vez. "inspeccionar la campaña''. Como resultado de esta empresa tuvo lugar un prolijo reconocimiento de la ruta terrestre entre la capital del Virreinato y el Río Negro, la que pudo ser reconstruida mediante el estudio crítico del diario de la expedición, realizado con la información que aporta la documentación édita e inédita, con el auxilio de la cartografía histórica y las mensura de los terrenos por los que tramitara la misma, practicadas a partir del siglo pasado. Como síntesis final, se ha volcado el camino seguido por Zizur en la cartografía actual.

  11. Mining or Tourism: The Development Preference of Settlers Along Pagatban River in Negros Oriental, Philippines

    Directory of Open Access Journals (Sweden)

    Enrique G. Oracion

    2015-06-01

    Full Text Available This paper examines the development preference of settlers surveyed along the upstream, midstream, and downstream sections of Pagatban River in Negros Oriental in central Philippines. The majority of 120 respondents, equally distributed along the three sections of the river, are against the restoration of mining but are in favor of tourism development considering the ecological costs and economic benefits they have to bear with and enjoy, respectively. Specif ically, the data show that the number of respondents who do not prefer the restoration of mining is highest among downstream households while the number of those who do not prefer tourism development is highest among upstream households. The midstream respondents generally prefer both development projects. The chi-square test proves signif icant differences in the development preferences of respondents across settlements along the river. There are also significant differences in tourism preference according to the sex of the respondents, and in mining preference according to farm access, and monthly income of their households. The significant differences in household farm access and income relative to their locations further explain why economic and geographic variations result in divided preference for mining. Given that tourism development is preferred over restoration of mining, how the former’s benefits can be enjoyed across settlements should be looked into and planned with genuine community participation.

  12. [Aquatic Ecological Index based on freshwater (ICE(RN-MAE)) for the Rio Negro watershed, Colombia].

    Science.gov (United States)

    Forero, Laura Cristina; Longo, Magnolia; John Jairo, Ramirez; Guillermo, Chalar

    2014-04-01

    Aquatic Ecological Index based on freshwater (ICE(RN-MAE)) for the Rio Negro watershed, Colombia. Available indices to assess the ecological status of rivers in Colombia are mostly based on subjective hypotheses about macroinvertebrate tolerance to pollution, which have important limitations. Here we present the application of a method to establish an index of ecological quality for lotic systems in Colombia. The index, based on macroinvertebrate abundance and physicochemical variables, was developed as an alternative to the BMWP-Col index. The method consists on determining an environmental gradient from correlations between physicochemical variables and abundance. The scores obtained in each sampling point are used in a standardized correlation for a model of weighted averages (WA). In the WA model abundances are also weighted to estimate the optimum and tolerance values of each taxon; using this information we estimated the index of ecological quality based also on macroinvertebrate (ICE(RN-MAE)) abundance in each sampling site. Subsequently, we classified all sites using the index and concentrations of total phosphorus (TP) in a cluster analysis. Using TP and ICE(RN-MAE), mean, maximum, minimum and standard deviation, we defined threshold values corresponding to three categories of ecological status: good, fair and critical.

  13. Cerro Negro bitumen degradation by a consortium of marine benthic microorganisms

    Energy Technology Data Exchange (ETDEWEB)

    Potter, T.L.; Duval, B. [USDA-ARA, Tifton, GA (USA). Southeast Watershed Research Laboratory

    2001-01-01

    Cerro Negro bitumen, separated from an Orimulsion sample, was incubated for up to 120 days with sediments collected at a petroleum-impacted site in Tampa Bay, Florida. Biodegradation conditions were optimized by increasing bitumen surface area, continuous agitation on a shaker apparatus, use of a complete growth medium, and maintenance at 37{degree}C. Aerobic degradation conditions were promoted by maintaining sediment contact with the laboratory atmosphere. Bitumen recovered in solvent extracts when compared to autoclaved controls decreased by up to 40% during the first 56 days. There was no detectable change after this. Molasses addition and use of a culture enriched from the sediments did not change the extent or rate of decrease in bitumen recovery. Chemical fractionation of bitumen control and degraded bitumen showed that aromatic and aliphatic fractions were depleted by {approx} 50%. Accumulation of polars was observed; however, the apparent increase was relatively small when compared to the mass loss of the other fractions. Selected biomarker ratios were not affected by incubation indicating their utility for fingerprinting the source bitumen in environmental samples. PAH distribution in the aromatic fraction favored the higher alkyl-homologues with the relative degree of alkylation increasing as the mass of bitumen recovered decreased with degradation. The study showed that up to 40% of the bitumen was bioaccessible and that bioremediation may be a treatment option for sediments contaminated with bitumen by an Orimulsion spill. 36 refs., 8 figs., 5 tabs.

  14. Increasing incidence of malaria in the Negro River basin, Brazilian Amazon.

    Science.gov (United States)

    Cabral, A C; Fé, N F; Suárez-Mutis, M C; Bóia, M N; Carvalho-Costa, F A

    2010-08-01

    Malaria in Brazil is virtually restricted to the Amazon Region, where it has a heterogeneous geographic distribution. We reviewed secondary data in order to describe the regional and temporal distribution of 8018 malaria cases seen between 2003 and 2007 in Santa Isabel do Rio Negro, a municipality in the northwest Brazilian Amazon. A significant rise in malaria incidence, mainly in the Yanomami Indian reservation, was observed during this time. Anopheline breeding sites were also mapped and entomological data were obtained through the capture of larval and adult mosquitoes. Thirty-three potential breeding sites were identified in the urban and periurban areas, 28 of which were positive for anopheline larvae. Anopheles darlingi specimens were captured in both intra- and peridomicile locations in the urban areas. Demographic data were also assessed via a sectional survey, revealing that the majority of dwellings were vulnerable to mosquitoes. This study suggests that urban and periurban areas of this municipality are highly susceptible to epidemic malaria, which is endemic in the Yanomami Indian reservation near the city. In addition, transmission can be perpetuated autochthonously in the urban area, drawing attention to the continuous need for preventative measures such as controlling adult and aquatic stages of mosquitoes and improving housing.

  15. O Sol Laranja e Negro de João Cabral de Melo Neto

    Directory of Open Access Journals (Sweden)

    Luciana Tiscoski

    2011-12-01

    Full Text Available O poeta pernambucano João Cabral de Melo Neto publica Sevilha andando em 1990, já aposentado da carreira diplomática que lhe possibilitou o contato com a cidade e o povo sevilhano, desde 1956, quando trabalha em pesquisas históricas no Arquivo das Índias de Sevilha. Após ter morado em cidades como Londres, Marselha e Barcelona, é transferido para a andaluza Cadiz, e novamente reside em Sevilha em 1962. Tendo ainda passado no decorrer de sua carreira diplomática por Berna, Senegal e Honduras, é a Andaluzia que se estabelece como lugar da linguagem poética e concreta, eleita Sevilha a cidade onde os elementos de sua poesia se realizam em lâmina, pedra, o sol laranja e negro, a mulher que anda. Sevilha andando e Andando Sevilha finalizam sua produção poética e reproduzem em serena e bruta semelhança o homem da terra que lhe remete ao sertanejo, a Pernambuco, a Recife.

  16. Unrest of Chiles - Cerro Negro volcanic complex: A binational Ecuador - Colombia effort

    Science.gov (United States)

    Ruiz, M. C.; Gomez, D.; Torres, R.; Cadena, O.; Mothes, P. A.; Anzieta, J. C.; Pacheco, D. A.; Bernard, B.; Acero, W.; Hidalgo, S.; Enriquez, W.; Cordova, A.

    2014-12-01

    The increasing seismic activity at the area of Chiles - Cerro Negro volcanic complex, located at the Ecuador-Colombian border, has been jointly monitored by the Instituto Geofisico - Ecuador and the Observatorio Vulcanologico y Sismologico de Pasto OVSP, a division of the Servicio Geologico Colombiano. Since April 2013, three seismic swarms have been detected in this area and more than 100.000 events are recorded since November 2013. The largest and more recent swarm has a daily average of 676 events between March and June 2014. Currently a seismic network of 8 seismic stations (5 in the Colombian and 3 in Ecuadorean side) are deployed in this area. Epicenters of more than 315 seismic events with magnitudes Ml>2.0 and 10 or more phases are located in an area 1-4 km south of Chiles volcano with shallow depths (up to 14 km). Most of events have magnitudes between 1.0 to 4.0. Nine events have magnitudes larger than 4.0 and the largest event occurred on April 30. 2014 with a local magnitude of 4.7 and inverse-transcurrent component focal mechanism. Waveforms and spectral patterns define these events as volcano-tectonic. Events with large magnitudes (above 3.0) show a very long-period component. Hot spring and deformation measurements also show signals of volcanic unrest.

  17. Fishery of the short-necked clam Paphia undulata in Southern Negros Occidental, Central Philippines

    Directory of Open Access Journals (Sweden)

    Karen A. Villarta

    2010-06-01

    Full Text Available This study documents the fishery of the short-necked clam Paphia undulata in coastal waters of southern Negros Occidental. Catch and effort estimates were determined based on daily records of compressor divers gathered between February-July 2008 in Himamaylan City and July 2008-May 2009 in the town of Hinigaran. Fishing and marketing practices in both areas were also documented and population biology information noted.Compared to earlier conditions, present fishing patterns show a worsened stage of overexploitation primarily characterized by collection of predominantly small and immature (mostly <45 mm shell lengths sizes. Intensity/duration and location of fishing also varied due to both abundance and demand factors.The difference in sizes of clams and the varying fishing durations in each area suggest a non-uniform pattern of settlement resulting most likely from differential larval recruitment, the likely factors causing the local boom and bust fishery. The larger and long term extent of the effect of these factors can only be further investigated by parallel 2-3 year fishery-dependent and -independent surveys

  18. Colleges and Cable Franchising.

    Science.gov (United States)

    Glenn, Neal D.

    After noting issues of audience appeal and financial and philosophical support for educational broadcasting, this paper urges community colleges to play an active role in the process of cable franchising. The paper first describes a cable franchise as a contract between a government unit and the cable television (CATV) company which specifies what…

  19. A luta do negro brasileiro por justiça e inclusão e os desafios interpretativos das teorias sociais

    Directory of Open Access Journals (Sweden)

    Alessandro Theodoro Cassoli

    2012-12-01

    O presente estudo tem como objetivo mapear as principais colaborações do pensamento social brasileiro acerca da luta organizada do negro ao longo da Primeira República, momento em que o povo negro se viu liberto da antiga sociedade de castas que o escravizava, mas no entanto estava fora do projeto da nova sociedade de classe que se formava. Daremos destaque à densa e original interpretação proposta por Florestan Fernandes em seu A integração do negro na sociedade de classes, elencando os principais fatores que diferenciam essa obra de todo o que já havia sido escrito sobre o negro até aquela época. Procuraremos demonstrar que não constitui exagero colocar o trabalho de Florestan entre os primeiros estudos de caráter pós-colonial sobre a luta pela emancipação do negro brasileiro, uma vez que desenvolve suas análises a partir da dimensão simbólica e psicossocial revelada pelo discurso dos próprios sujeitos do movimento, metodologia que ainda estava em desenvolvimento pela nascente Teoria dos Novos Movimentos Sociais. Para tanto, nos guiaremos pelos trabalhos de analistas como Octavio Ianni (2004, Jessé Sousa (2000, Sérgio Tavolaro (2005 e Ilse Scherer-Warren (2010.

  20. Cyrilia sp. (Apicomplexa: Haemogregarinidae) in the Amazonian freshwater stingray Potamotrygon wallacei (cururu stingray) in different hydrological phases of the Rio Negro.

    Science.gov (United States)

    Oliveira, A T; Araújo, M L G; Pantoja-Lima, J; Aride, P H R; Tavares-Dias, M; Brinn, R P; Marcon, J L

    2017-01-01

    Intraerythrocytic parasites are frequently found in fish, including elasmobranchs. The Amazonian rivers present well defined annual hydrological cycles that results in drastic modifications of the environmental conditions with deep implications in the life cycle of the whole associated biota in those fluvial systems. The freshwater stingray Potamotrygon wallacei (stingray cururu) is a new species restricted to the Middle Rio Negro basin and it is subject to strong alterations in their natural habitats (igapós) a result of the constant variations in the water level of Rio Negro. This work demonstrates the occurrence of intraerythrocytic parasite Cyrilia sp. in this stingray species. Additionally, the prevalence and quantification of hemoparasites in different phases of Rio Negro were also established. Field sampling was carried in the Archipelago of Mariuá, Middle Rio Negro, involving different stages of the water cycle. The intraerythrocytic parasites were quantified by direct counting in blood smears using a total counting of 2000 erythrocytes in each blood smear. The presence of parasites intraerythrocytic generates changes in the morphology of blood cell. The largest amount of the hemoparasites was recorded in the drought period. We observed a decreasing tendency in the number of parasites in the blood between the drought periods and inundation. We concluded that the level of Negro River influences the incidence of intraerythrocytic parasites in the cururu stingray and the drought represents the period of larger susceptibility to the infestation.

  1. Cyrilia sp. (Apicomplexa: Haemogregarinidae in the Amazonian freshwater stingray Potamotrygon wallacei (cururu stingray in different hydrological phases of the Rio Negro

    Directory of Open Access Journals (Sweden)

    A. T. Oliveira

    Full Text Available Abstract Intraerythrocytic parasites are frequently found in fish, including elasmobranchs. The Amazonian rivers present well defined annual hydrological cycles that results in drastic modifications of the environmental conditions with deep implications in the life cycle of the whole associated biota in those fluvial systems. The freshwater stingray Potamotrygon wallacei (stingray cururu is a new species restricted to the Middle Rio Negro basin and it is subject to strong alterations in their natural habitats (igapós a result of the constant variations in the water level of Rio Negro. This work demonstrates the occurrence of intraerythrocytic parasite Cyrilia sp. in this stingray species. Additionally, the prevalence and quantification of hemoparasites in different phases of Rio Negro were also established. Field sampling was carried in the Archipelago of Mariuá, Middle Rio Negro, involving different stages of the water cycle. The intraerythrocytic parasites were quantified by direct counting in blood smears using a total counting of 2000 erythrocytes in each blood smear. The presence of parasites intraerythrocytic generates changes in the morphology of blood cell. The largest amount of the hemoparasites was recorded in the drought period. We observed a decreasing tendency in the number of parasites in the blood between the drought periods and inundation. We concluded that the level of Negro River influences the incidence of intraerythrocytic parasites in the cururu stingray and the drought represents the period of larger susceptibility to the infestation.

  2. Comprehensive College Plan for 2002-2003.

    Science.gov (United States)

    San Antonio Coll., TX.

    This plan for San Antonio College (SAC) (Texas), a college of the Alamo Community College District (ACCD), offers vision and mission statements for both ACCD and SAC. In addition, it details the Institutional Effectiveness process and philosophy for SAC. The document also includes SAC strategic goals and initiatives, and unit strategic objectives,…

  3. Online Education in the Community College

    Science.gov (United States)

    Johnson, Steven G.; Berge, Zane

    2012-01-01

    This paper looks at three areas impacting online education at the community college level. Community colleges account for more than half of all online students in the United States as of 2006. This makes the success of online learning at the community college level a critical part of the growing online learning movement. Using data for…

  4. Tree communities of white-sand and terra-firme forests of the upper Rio Negro Comunidades de árvores em florestas de campinarana e de terra-firme do alto Rio Negro

    Directory of Open Access Journals (Sweden)

    Juliana Stropp

    2011-01-01

    Full Text Available The high tree diversity and vast extent of Amazonian forests challenge our understanding of how tree species abundance and composition varies across this region. Information about these parameters, usually obtained from tree inventories plots, is essential for revealing patterns of tree diversity. Numerous tree inventories plots have been established in Amazonia, yet, tree species composition and diversity of white-sand and terra-firme forests of the upper Rio Negro still remain poorly understood. Here, we present data from eight new one-hectare tree inventories plots established in the upper Rio Negro; four of which were located in white-sand forests and four in terra-firme forests. Overall, we registered 4703 trees > 10 cm of diameter at breast height. These trees belong to 49 families, 215 genera, and 603 species. We found that tree communities of terra-firme and white-sand forests in the upper Rio Negro significantly differ from each other in their species composition. Tree communities of white-sand forests show a higher floristic similarity and lower diversity than those of terra-firme forests. We argue that mechanisms driving differences between tree communities of white-sand and terra-firme forests are related to habitat size, which ultimately influences large-scale and long-term evolutionary processes.A vasta extensão e a alta diversidade de árvores das florestas na Amazônia desafiam a nossa compreensão sobre como variam a composição e abundância de espécies arbóreas ao longo desta região. Informações sobre estes parâmetros, geralmente obtidas a partir de inventários florísticos, são fundamentais para análises sobre padrões de diversidade. Embora inúmeros inventários florísticos tenham sido estabelecidos na Amazônia, a composição de espécies e a diversidade de árvores das florestas de campinarana e de terra-firme, na região do alto Rio Negro, permanecem ainda pouco conhecidas. Aqui, apresentamos dados de invent

  5. The Black-White Achievement Gap Revisited Revisitando la brecha en el rendimiento de estudiantes negros y blancos Revisitando a defasagem de rendimento academico dos estudantes negros e brancos

    Directory of Open Access Journals (Sweden)

    Henry Braun

    2010-09-01

    Full Text Available This study examines trends in Black student achievement and in the Black-White achievement gap over the period 2000 to 2007, employing data from ten states drawn from the NAEP Grade 8 mathematics assessments. Results are obtained for three levels of aggregation: the state, school poverty stratum within the state, and schools within poverty stratum. In addition, information on the ten states’ education policies for the period 1998 to 2005 was compiled. States relative ranks on the overall strength of their reform efforts were compared to their relative ranks with respect to their success in improving Black student achievement and in reducing the Black- White achievement gap. This study constitutes an extension of earlier work that considered the same issues for the period 1992 to 2000 and, thus, offers a unique comparison between the pre-NCLB era and the present one. Although the ten states certainly differed in their outcomes, the general picture at all three levels of aggregation is quite clear: The achievement gaps are substantial and the introduction of federally mandated high stakes test-based accountability through No Child Left Behind has had a very modest impact on the rates of improvement for Black students and on the pace of reductions in the achievement gaps between Black students and White students. Moreover, there was only a weak association between states’ policy rankings and their rankings related to test results. It appears there is a need for both fresh thinking on education reform and a more concerted effort to collect comprehensive longitudinal information on states' education policies.
    Este estudio examina las tendencias en el rendimiento académico de estudiantes negros y la brecha en el rendimiento de los estudiantes negros y blancos en el período 2000 a 2007, utilizando datos de las evaluaciones NAEP de Matemáticas para el octavo grado en diez estados. Se obtuvieron resultados para tres niveles de agregacio

  6. A Link to the Future: A Pilot Study Look at How Historically Black Colleges and Universities with Journalism and Mass Communications Units Use the Internet in Recruiting

    Science.gov (United States)

    Crawford, Jerry, II

    2012-01-01

    Historically Black Colleges and Universities (HBCUs) have had the ability to recruit African-American students since the 1860s by stressing a sense of inclusion and family through their mission statements and community outreach. There was little to no competition for African-American students from predominantly white institutions until integration…

  7. Mental Health Stigma and Self-Concealment as Predictors of Help-Seeking Attitudes among Latina/o College Students in the United States

    Science.gov (United States)

    Mendoza, Hadrian; Masuda, Akihiko; Swartout, Kevin M.

    2015-01-01

    The study examined whether mental health stigma and self-concealment are uniquely related to various dimensions of attitudes toward seeking professional psychological services (i.e., help-seeking attitudes) in Latina/o college students. Data from 129 Latina/o undergraduates (76% female) were used in the analysis. Results revealed that mental…

  8. Translating Sexual Assault Prevention from a College Campus to a United States Military Installation: Piloting the Know-Your-Power Bystander Social Marketing Campaign

    Science.gov (United States)

    Potter, Sharyn J.; Stapleton, Jane G.

    2012-01-01

    One population that shares both similar and different characteristics with traditional college-age students is the U.S. Military. Similarities include a high concentration of 18- to 26-year-olds dealing with new found independence, peer pressure, and the presence of social norms that support violence and hypermasculinity. Sexual violence is a…

  9. Regional Comparative Unit Cost Studies for Maintenance and Operation of Physical Plants in Universities and Colleges in Central States Region and Rocky Mountain Region.

    Science.gov (United States)

    Association of Physical Plant Administrators, Corvallis, OR.

    Presented in this document are data pertaining to maintenance and operations costs at colleges and universities in the central states region and the Rocky Mountain region. The major accounts included in the cost analysis are: (1) physical plant administration, (2) building maintenance, (3) custodial services, (4) utilities, (5) landscape and…

  10. Emergency Contraceptive Pill (ECP) Use and Experiences at College Health Centers in the Mid-Atlantic United States: Changes since ECP Went Over-the-Counter

    Science.gov (United States)

    Miller, Laura M.

    2011-01-01

    Objective: To investigate the availability of emergency contraceptive pills (ECPs) at college health centers since ECP went over-the-counter (OTC) in 2006. Related issues, such as distribution procedure, existence of a written protocol, personnel involved, contraindications, follow-up procedures, methods of advertising, and staff attitudes, were…

  11. Information heterogeneity and intended college enrollment

    OpenAIRE

    Bleemer, Zachary; Zafar, Basit

    2014-01-01

    Despite a robust college premium, college attendance rates in the United States have remained stagnant and exhibit a substantial socioeconomic gradient. We focus on information gaps - specifically, incomplete information about college benefits and costs - as a potential explanation for these patterns. In a nationally representative survey of U.S. household heads, we show that perceptions of college costs and benefits are severely and systematically biased: 74 percent of our respondents undere...

  12. Isotopic evidence for identifying the mechanism of salinization of groundwater in Bacolod City,Negros Occidental

    International Nuclear Information System (INIS)

    Castaneda, Soledad S.; Almoneda, Rosalinda V.; Sucgang, Raymond J.; Desengano, Daisy; Lim, Fatima

    2008-01-01

    Saline water is easily identified by measurement of the conductivity of the ionic species in the water. In groundwater, it is important to identify the mechanism of salinization for proper management of the resource. Salinization may come from: a) leaching of salts by percolating water, b) intrusion of modern saltwater bodies of connate water, and c) concentration of dissolved salts due to evaporation. The salinity and isotopic concentrations of 18 O, 2 H, and 3 H of the water sources were used to assess the processes which lead to the salinization of groundwater in Bacolod City, Negros Occidental. The isotopic composition of deep groundwater, river water, and springs cluster along the LMWL with δ 18 O ranging from -7.9 ''promille'' to -6.5 ''promille'' and δ 2 H ranging from -52.6 ''promille'' to -39.1''promille''. Two isotopically distinct groups of deep groundwater were deleated; the higher elevation wells yielding isotopically depleted waters while the lowland wells yielding relatively enriched water with higher conductivity. The shallow coastal wells exhibited more enriched isotope values with δ 18 O values from 6.10 ''promille''-5.61''promille'' and δ 2 H from -43.1''promille'' to -38.8''promille'' and highest conductivity. The relative enrichment in the isotopic composition of the deep groundwater in the lowland and the shallow groundwater along the coast is attributed to saltwater intrusion. The process of salinization in these waters is differentiated based on the relationship between their isotopic compositions and the chlorine concentrations. The high salinity of the isotopically enriched and old deep groundwater inland is attributed to mixing with connate water. On the other hand , mixing with modern sea water is evident in the deep and shallow coastal wells. (author)

  13. Reconstructing water level in Hoyo Negro, Quintana Roo, Mexico, implications for early Paleoamerican and faunal access

    Science.gov (United States)

    Collins, S. V.; Reinhardt, E. G.; Rissolo, D.; Chatters, J. C.; Nava Blank, A.; Luna Erreguerena, P.

    2015-09-01

    The skeletal remains of a Paleoamerican (Naia; HN5/48) and extinct megafauna were found at -40 to -43 mbsl in a submerged dissolution chamber named Hoyo Negro (HN) in the Sac Actun Cave System, Yucatan Peninsula, Mexico. The human remains were dated to between 12 and 13 Ka, making these remains the oldest securely dated in the Yucatan. Twelve sediment cores were used to reconstruct the Holocene flooding history of the now phreatic cave passages and cenotes (Ich Balam, Oasis) that connect to HN. Four facies were found: 1. bat guano and Seed (SF), 2. lime Mud (MF), 3. Calcite Rafts (CRF) and 4. Organic Matter/Calcite Rafts (OM/CRF) which were defined by their lithologic characteristics and ostracod, foraminifera and testate amoebae content. Basal radiocarbon ages (AMS) of aquatic sediments (SF) combined with cave bottom and ceiling height profiles determined the history of flooding in HN and when access was restricted for human and animal entry. Our results show that the bottom of HN was flooded at least by 9850 cal yr BP but likely earlier. We also found, that the pit became inaccessible for human and animal entry at ≈8100 cal yr BP, when water reaching the cave ceiling effectively prevented entry. Water level continued to rise between ≈6000 and 8100 cal yr BP, filling the cave passages and entry points to HN (Cenotes Ich Balam and Oasis). Analysis of cave facies revealed that both Holocene sea-level rise and cave ceiling height determined the configuration of airways and the deposition of floating and bat derived OM (guano and seeds). Calcite rafts, which form on the water surface, are also dependent on the presence of airways but can also form in isolated air domes in the cave ceiling that affect their loci of deposition on the cave bottom. These results indicated that aquatic cave sedimentation is transient in time and space, necessitating extraction of multiple cores to determine a limit after which flooding occurred.

  14. Efectos del control del picudo negro (Cosmopolites sordidus en el plátano.

    Directory of Open Access Journals (Sweden)

    Ignacio Armendáriz

    2016-06-01

    Full Text Available El objetivo del estudio fue comprobar el efecto en el plátano de las capturas masivas de adultos con feromonas y de la aplicación de hongos entomopatógenos sobre Cosmopolites sordidus. La investigación se realizó en el Carmen, Manabí, Ecuador, de diciembre 2013 a octubre 2014 en una parcela de nueva plantación de plátano Barraganete y se valoró el efecto de la eliminación de restos vegetales de las parcelas. El diseño experimental fue al azar con tres repeticiones. En laboratorio se comprobó la infectividad de la cepa de Beauveria bassiana sobre adultos del picudo negro y del picudo café (Metamasius hemipterus (92,80 y 100% en M. hemipterus frente a 46,70 y 16,20% en C. sordidus. Las capturas de adultos fueron continuas a lo largo del ensayo, con una media de 0,37 adultos/trampa/día. Los datos agronómicos indicaron una diferencia positiva y significativa (análisis de la varianza de los tratamientos frente al control en el perímetro del pseudotallo (F de 4,982 y en el peso de los racimos entre las parcelas limpias con feromonas y con hongos limpias frente al control (F= 3,994. Al comparar los tratamientos el peso del racimo y la longitud de los dedos fueron significativamente mayores en las parcelas de feromonas frente a las de hongos (F = 4,508. Las capturas de adultos con feromonas no estuvieron condicionadas por la limpieza de las parcelas, aunque esta sí incidió en la altura de las plantas (F= 4,245.

  15. Magma-Tectonic Interactions along the Central America Volcanic Arc: Insights from the August 1999 Magmatic and Tectonic Event at Cerro Negro, Nicaragua

    Science.gov (United States)

    La Femina, P.; Connor, C.; Strauch, W.

    2002-12-01

    Volcanic vent alignments form parallel to the direction of maximum horizontal stress, accommodating extensional strain via dike injection. Roughly east-west extension within the Central America Volcanic Arc is accommodated along north-northwest-trending basaltic vent alignments. In Nicaragua, these alignments are located in a northwest-trending zone of dextral shear, with shear accommodated along northeast trending bookshelf faults. The recent eruption of Cerro Negro volcano, Nicaragua and Marabios Range seismic swarm revealed the interaction of these fault systems. A low energy (VEI 1), small volume (0.001 km3 DRE) eruption of highly crystalline basalt occurred at Cerro Negro volcano, Nicaragua, August 5-7, 1999. This eruption followed three tectonic earthquakes (each Mw 5.2) in the vicinity of Cerro Negro hours before the onset of eruptive activity. The temporal and spatial pattern of microseismicity and focal mechanisms of the Mw 5.2 earthquakes suggests the activation of northeast-trending faults northwest and southeast of Cerro Negro within the Marabios Range. The eruption was confined to three new vents formed on the southern flank of Cerro Negro along a preexisting north-northwest trending alignment; the El Hoyo alignment of cinder cones, maars and explosion craters. Surface ruptures formed > 1 km south and southeast of the new vents suggest dike injection. Numerical simulations of conduit flow illustrate that the observed effusion rates (up to 65 ms-1) and fountain heights (50-300 m) can be achieved by eruption of magma with little or no excess fluid pressure, in response to tectonic strain. These observations and models suggest that 1999 Cerro Negro activity is an excellent example of tectonically induced small-volume eruptions in an arc setting.

  16. Papel del frijol negro Phaseolus vulgaris en el estado nutricional de la población guatemalteca

    OpenAIRE

    Serrano, José; Goñi, Isabel

    2004-01-01

    RESUMEN. En Guatemala existe un fenómeno de superposición epidemiológica, en el que coexisten problemas de salud propios de países desarrollados con otros característicos de poblaciones en vías de desarrollo. Se observan deficiencias marcadas en algunos macronutrientes tales como hierro y vitamina A. en simultaneidad con enfermedades crónicas como diabetes tipo II o enfermedades cardiovasculares. Se conoce muy bien la importancia del frijol negro (Phaseolus vulgaris) en la dieta habitual de G...

  17. "Paladinos da liberdade": A experiência do Clube Negro de Cultura Social em São Paulo (1932-1938

    Directory of Open Access Journals (Sweden)

    Petrônio Domingues

    2004-06-01

    Full Text Available O objetivo desse artigo é romper com o relativo silêncio historiográfico que envolve a luta organizada do negro no combate ao racismo neste país, em particular, nas primeiras décadas do período republicano. Por isso, resolvemos oferecer subsídios para se fazer, pioneiramente, um resgate histórico da entidade Clube Negro de Cultura Social (1932-1938 e, centralmente, analisar seus dois veículos informativos oficiais: a revista Cultura, na primeira fase, e o jornal O Clarim, na segunda fase da organização.

  18. Restriction enzyme analysis of the chloroplast DNA of Phaseolus vulgaris L. vr. Rio Negro Análise de restrição do DNA cloroplástico de Phaseolus vulgaris vr. Rio Negro

    Directory of Open Access Journals (Sweden)

    Sergio Echeverrigaray

    1996-12-01

    Full Text Available The chloroplast DNA of Phaseolus vulgaris L. vr. Rio Negro was isola ted from chloroplasts obtained by descontiuous sucrose gradient centrifugation. The restriction analysis with the enzymes HindIII, EcoRI and BamHI and their combination, allowed to identified more than 20 fragments of 18 to 0.65kb. The size of Phaseolus vulgaris L. cp DNA was estimated in 140kb with the presence of a repeat sequence of about 22kb.O DNA cloroplástico do cultivar Rio Negro (Phaseolus vulgaris L. foi isolado a partir de cloroplastos obtidos por gradiente descontínuo de sacarose. A análise de restrição com as enzimas HindIII, EcoRI e BamHI e a combinação destas, permitiu a identificação de mais de 20 fragmentos na faixa de 18 a 0.65kb. O tamanho do cp DNA de Phaseolus vulgaris L. foi estimado em 140kb com a existência de sequências repetidas de aproximadamente 22kb.

  19. Futures Seminar: The United States Army in 2025 and Beyond. A Compendium of U.S. Army War College Student Papers. Volume 1

    Science.gov (United States)

    2014-06-01

    Beyond.A Compendium of U.S. Army War College Student Papers. Volume 1 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d...is expected to result in considerable cost savings due to use of existing 31. Edward C. Cardon , “Moving to the Future,” Army Technology 1, iss. 2

  20. Stackable Credentials and Career/college Pathways in Culinary Arts at Kingsborough Community College, CUNY

    Science.gov (United States)

    Audant, Anne Babette

    2016-01-01

    Discussions of workforce development emphasize stackable training, and assume linear advancement and alignment, through college and career paths. Stackable credentials have become a best practice for community colleges across the United States as they struggle to advance the college completion agenda and ensure that students graduate with the…

  1. Leadership Development Institute: A California Community College Multi-College District Case Study

    Science.gov (United States)

    Leon, Bianca R.

    2016-01-01

    The purpose of this study is to examine a community college district Grow Your Own (GYO) leadership program in the Western United States, the Multi College Leadership Development Institute (MCLDI). The MCLDI was developed in-house for a multi-campus community college district and offered to interested employees at all position levels with the…

  2. Modelos culturales en conflicto: grupos negros y misioneros agustinos en el Pacífico sur colombiano (1896-1954

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    Óscar Almario García

    2013-01-01

    Full Text Available El artículo analiza las relaciones entre los grupos negros del Pacífico sur colombiano y los misioneros agustinos recoletos en términos de tensiones entre dos «modelos culturales» diferentes, durante un período de transición para las identidades étnicas y el nacionalismo de Estado. El modelo de los grupos negros se relaciona con su proceso de etnogénesis, que se incuba como resistencia a la esclavitud en el siglo XVIII, se extiende en libertad durante el XIX y persiste como como identidad territorializada, poblamientos ribereños dispersos y sentidos comunitarios en el siglo XX. Mientras que el modelo de los misioneros se explica por la compleja interacción entre la modernidad tardía, el sistema mundo, el nacionalismo de Estado y la tradición católica en Colombia, con el cual se pretendía transformar los sujetos étnicos y las condiciones regionales, encauzándolos en los ideales de Dios, Patria y Progreso, y concentrándolos en poblaciones.

  3. Characterisation of an enamelled metallic object found in Guerrero Negro (Baja California) by PIXE and RBS techniques

    International Nuclear Information System (INIS)

    Calvo del Castillo, H.; Ruvalcaba, J.L.; Calderon, T.; Salinas Nolasco, M.F.; Mejia, L.M.; Perdigon, K.

    2008-01-01

    The coast of Guerrero Negro (Baja California) has been known for a long time by archaeologists for its shipwrecks. Archaeologists are recovering objects that come from sunken Spanish galleons in the colonial period, and reach the American coast in the frontier of the USA with Mexico. An enamelled metallic object was found next to the beach in Guerrero Negro. We have analysed the piece with proton induced X-ray emission (PIXE) and Rutherford backscattering (RBS) in an attempt to establish whether the object could come from one of the colonial shipwrecks and to valuate its cleaning process. Scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDS) have been also performed in three samples taken from the object in order to observe the heterogeneity of the material. The materials found revealed the presence of typical lead-glass enamels from with pigments such as cuprite (red), or lead-tin yellow used in colonial times. The metallic part consisted of brass. As for the cleaning process, the average efficiency considered as the weight% of chlorine removed, was of 83.4% for brass and 100% for enamels

  4. Evaluación de líneas de frijol negro, en Veracruz y Chiapas, México

    Directory of Open Access Journals (Sweden)

    Ernesto Lopez

    2001-01-01

    Full Text Available Evaluación de líneas de frijol negro, en Veracruz y Chiapas, México. El presente estudio se llevó a cabo durante los ciclos agrícolas de 1999-2000 y 2000-2001; se evaluó la adaptación y rendimiento de 15 líneas avanzadas de frijol negro, así como un testigo local. Dichos genotipos forman parte al Ensayo Centroamericano de Adaptación y Rendimiento (ECAR. La evaluación se realizó en 11 localidades, cinco en el estado de Chiapas y seis en Veracruz, los experimentos se establecieron bajo condiciones de riego, temporal y humedad residual. Las líneas ICTA-Ju 97-1, ICTA-Ju II- 307, DOR-678 y Cut-45, resultaron sobresalientes por su rendimiento, amplia adaptación y estabilidad. En el ciclo agrícola de otoño-invierno 1999-2000, se evaluó la respuesta de las líneas a las siguientes enfermedades: mosaico dorado (BGMV, mancha angular (Phaseoisariopsis griseola, roya (Uromyces appendiculatus y la antracnosis (Colletotrichum lindemuthianum. Las líneas que resultaron tolerantes fueron ICTA Ju 97-1 y Cut-45. Ambas serán validadas en campos de agricultores para su posible liberación como nuevas variedades para algunas regiones productoras de Veracruz y Chiapas, México

  5. Differential resilience of Amazonian otters along the Rio Negro in the aftermath of the 20th century international fur trade.

    Science.gov (United States)

    Pimenta, Natalia C; Antunes, André P; Barnett, Adrian A; Macedo, Valêncio W; Shepard, Glenn H

    2018-01-01

    Commercial hunting for the international trade in animal hides in the 20th century decimated many populations of aquatic wildlife in Amazonia. However, impacts varied significantly between different species and regions, depending upon hunting intensity, accessibility of habitat, and the inherent resilience of various species and their habitats. We investigated the differential responses of two Amazonian Mustelid species, the neotropical otter and giant otter, to commercial hunting pressure along the upper Rio Negro in Brazil, and examined historical factors that influenced spatial and temporal variation in commercial exploitation. We analyzed previously unanalyzed data from historical records of hide shipments to track changes in hide sales and prices for the two species in the late 20th century. We also gathered oral histories from older Baniwa people who had witnessed or participated in commercial otter hunting. These complimentary data sources reveal how intrinsic biological and social characteristics of the two otter species interacted with market forces and regional history. Whereas giant otter populations were driven to local or regional extinction during the late 20th century by commercial hunting, neotropical otters persisted. In recent decades, giant otter populations have returned to some parts of the upper Rio Negro, a development which local people welcome as part of a generalized recovery of the ecosystems in their territory as a result of the banning of animal pelt exports and indigenous land demarcation. This paper expands the scope of the field historical ecology and reflects on the role of local knowledge in biodiversity conservation.

  6. El polen de las mieles del valle de Río Negro, provincia fitogeográfica del monte (Argentina

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    María C. Tellería

    2000-01-01

    Full Text Available Tellería, M. C. & Forcone, A. 2000. El polen de las mieles del valle de Río Negro, provinciafitogeográfica del monte (Argentina. Darwiniana 38(3-4: 273-277.Se realizó el análisis palinológico de 41 muestras de miel del valle de Río Negro. El contenido polínicode las muestras fue acetolizado e identificado por comparación con una colección de polen de referencia.Del total de muestras examinadas, 26 fueron mixtas y las restantes monoflorales de: Tamarix gallica (8muestras, Eucalyptus sp. (2 muestras, Melilotus sp. (1 muestra, Centaurea sp. (1 muestra, Prosopissp. (1 muestra, Brassicaceae (1 muestra y Monttea aphylla (1 muestra. Estas mieles pueden diferenciar-se de aquellas que se producen en el valle inferior del río Chubut, en la misma región fitogeográfica

  7. Morbidity of Chagas heart disease in the microregion of Rio Negro, Amazonian Brazil: a case-control study

    Directory of Open Access Journals (Sweden)

    Jose Rodrigues Coura

    2013-12-01

    Full Text Available A case-control study on the morbidity of Chagas heart disease was carried out in the municipality of Barcelos in the microregion of the Rio Negro, state of Amazonas. One hundred and six individuals, who were serologically positive for Trypanosoma cruzi infection, as confirmed by at least two techniques with different principles, were matched according to age and sex with an equal number of seronegative individuals. The cases and controls were evaluated using an epidemiological questionnaire and clinical, electrocardiograph and echocardiograph examinations. In the seroepidemiological evaluation, 62% of the interviewees recognised triatomines and most of them confirmed that they had seen these insects in the piassava plantations of the riverside communities of the Negro River tributaries. Of the seropositive patients, 25.8% affirmed that they had been stung by the triatomines and 11.7% denied having been stung. The principal clinical manifestations of the seropositive individuals were palpitations, chest pain and dyspnoea upon effort. Cardiac auscultation revealed extrasystoles, bradycardia and systolic murmurs. The electrocardiographic alterations were ventricular extrasystoles, left and right bundle branch block, atrioventricular block and primary T wave alterations. The echocardiogram was altered in 22.6% of the seropositive individuals and in 8.5% of the seronegative individuals.

  8. Negro é o inferno! Um ensaio sobre as cores dos homens, dos demônios e dos deuses

    Directory of Open Access Journals (Sweden)

    Walker Douglas Pincerati

    2016-10-01

    Full Text Available http://dx.doi.org/10.5007/1984-8420.2016v17n2p46 Problematiza-se o par negro.branco na formação social brasileira, trabalhando a hipótese de que ‘negro’ não é cor, mas a metáfora do corpo do ser infernal. Estatísticas oficiais, a história da formação do Brasil, um enunciado de um Deputado Federal Pastor, o quadro A libertação dos Escravos de Pedro Américo (1889 e a história da construção das catedrais góticas medievais são evocadas para analisá-lo, desde o ponto de vista linguístico-discursivo. Nota-se, destarte, uma longa história do alinhamento dos significantes branco-luz-deuses-céu-liberdade... e negro-escuridão-demônios-inferno-escravidão... atuando ainda no nosso país.

  9. Characterisation of an enamelled metallic object found in Guerrero Negro (Baja California) by PIXE and RBS techniques

    Energy Technology Data Exchange (ETDEWEB)

    Calvo del Castillo, H. [Departamento de Geologia y Geoquimica, Universidad Autonoma de Madrid (Spain); Instituto de Fisica, Universidad Nacional Autonoma de Mexico (Mexico); Centre Europeen d' Archeometrie - I.P.N.A.S., Universite de Liege, Allee du 6 Aout, 10 Bat-15, Sart Tilman, 4000-Liege 1 (Belgium)], E-mail: hcalvo@ulg.ac.be; Ruvalcaba, J.L. [Instituto de Fisica, Universidad Nacional Autonoma de Mexico (Mexico); Calderon, T. [Departamento de Geologia y Geoquimica, Universidad Autonoma de Madrid (Spain); Salinas Nolasco, M.F. [Coordinacion de Conservacion del Patrimonio Cultural, Instituto Nacional de Antropologia e Historia (Mexico); Mejia, L.M. [Direccion de Arqueologia Subacuatica, Instituto Nacional de Antropologia e Historia (Mexico); Perdigon, K. [Coordinacion de Conservacion del Patrimonio Cultural, Instituto Nacional de Antropologia e Historia (Mexico)

    2008-05-15

    The coast of Guerrero Negro (Baja California) has been known for a long time by archaeologists for its shipwrecks. Archaeologists are recovering objects that come from sunken Spanish galleons in the colonial period, and reach the American coast in the frontier of the USA with Mexico. An enamelled metallic object was found next to the beach in Guerrero Negro. We have analysed the piece with proton induced X-ray emission (PIXE) and Rutherford backscattering (RBS) in an attempt to establish whether the object could come from one of the colonial shipwrecks and to valuate its cleaning process. Scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDS) have been also performed in three samples taken from the object in order to observe the heterogeneity of the material. The materials found revealed the presence of typical lead-glass enamels from with pigments such as cuprite (red), or lead-tin yellow used in colonial times. The metallic part consisted of brass. As for the cleaning process, the average efficiency considered as the weight% of chlorine removed, was of 83.4% for brass and 100% for ename0008.

  10. El racismo y la representación social de lo negro entre niños de pueblos afromexicanos

    Directory of Open Access Journals (Sweden)

    Cristina Masferrer

    2017-12-01

    Full Text Available Este artículo analiza la representación social que construyen niños de pueblos afromexicanos sobre lo negro o las personas “negras” y examina de qué manera se asocia al racismo. Los resultados se basan en el trabajo de campo realizado en la región con la mayor concentración de localidades afrodescendientes en México, la Costa Chica de Guerrero y Oaxaca, en la cual se desarrollaron diversas estrategias etnográficas con niños de cuatro a catorce años de edad, como entrevistas grupales, talleres de radio y pintura, entre otras. Después de la introducción, se presenta una explicación sobre el contexto en que se realizó la investigación. Posteriormente se exponen los principales elementos de la representación social de niños de localidades afromexicanas sobre lo negro, mostrando en qué medida se vincula al racismo, aunque sin dejar de lado otros aspectos fundamentales como su relación con la construcción social de lugar. Finalmente, se presentan pautas metodológicas para combatir el racismo. Este trabajo busca contribuir a las discusiones antropológicas sobre el racismo a partir de perspectivas teóricas y propuestas metodológicas interdisciplinarias.

  11. Gut transport characteristics in herbivorous and carnivorous serrasalmid fish from ion-poor Rio Negro water.

    Science.gov (United States)

    Pelster, Bernd; Wood, Chris M; Speers-Roesch, Ben; Driedzic, William R; Almeida-Val, Vera; Val, Adalberto

    2015-02-01

    Three closely related characids, Tambaqui (omnivore), black Piranha (carnivore), and Pacu (herbivore), all Serrasalmidae, inhabit the ion-poor, acidic Rio Negro. We compared O2-consumption and N excretion rates in vivo, and sodium, chloride, glucose, and ammonia transport characteristics of gut sac preparations in vitro. The Pacu had a significantly higher weight-specific oxygen consumption, and a lower N/Q ratio than the omnivorous Tambaqui, and a significantly lower urea-N excretion rate than the carnivorous black Piranha, suggesting N-limitation in the herbivorous Pacu. With a value of 2.62 ± 0.15, gut to fork length ratio in the Pacu was about 2.5 times higher than in the black Piranha, and 2.0 times higher than in the Tambaqui. Anterior intestinal activities of three enzymes involved in N-fixation for amino acid synthesis (glutamate dehydrogenase, glutamate-oxaloacetate transferase, and glutamate-pyruvate transferase) were generally greatest in the carnivore and lowest in the herbivore species. In all three species, sodium, chloride, glucose, and ammonia were taken up at high rates from the intestine, resulting in an isosmotic fluid flux. Comparing the area-specific fluid flux of the anterior, mid, and posterior gut sections, no difference was detected between the three sections of the Pacu, while in the Tambaqui, it was highest in the anterior section, and in the black Piranha highest in the middle section. Overall, the area-specific uptake rates for sodium, chloride, glucose, and ammonia of anterior, mid, and posterior sections were similar in all three species, indicating that there is no difference in the area-specific transport rates associated with trophic position. The net ammonia uptake flux from gut interior was not significantly different from the net ammonia efflux to the serosal fluid, so that the ammonia removed from the intestine by the mucosal epithelium was quantitatively transferred through the tissue to the serosal side in all three

  12. Contenido de catequinas en cultivares argentinos de té elaborados como té negro

    Directory of Open Access Journals (Sweden)

    PRAT KRICUN, S. D

    2011-04-01

    Full Text Available El presente proyecto tuvo como objetivo determinar el contenido de materia seca de las siguientes catequinas, epigalocatequina-3-galato (EGCG, epigalocatequina (EGC, epicatequina (EC, catequina (C y catequina galato (CG, en los cultivares de té CH 14 INTA, CH 112 INTA, CH 318 INTA, CH 410 INTA y CH 732 INTA elaborados como té negro, durante tres épocas de zafra. Se empleó un sistema de extracción acuosa y la determinación de los compuestos se efectuó por cromatografía líquida de alta resolución (HPLC, con elución isocrática.Los contenidos de catequinas se analizaron por análisis de variancia (P<0,05, se estudiaron las diferencias entre cultivares y la población control, épocas e interacciones. Se compararon las medias entre cultivares y la población control por medio de la prueba de Comparación Múltiple (P<0,05. Los resultados obtenidos permiten establecer que el contenido total promedio de todas las catequinas analizadas, alcanzó a 1,53 de materia seca (%. EGCG fue la catequina con más alta concentración, alcanzado un promedio 1,10% ± 0,13, no registrando diferencias significativas entre cultivares. EGC alcanzó un segundo nivel con una concentración de 0,16%±0,03. Para EC, C y CG las concentraciones fueron de 0,16% ± 0,06; 0,06%± 0,016 y 0,04%± 0,009, respectivamente.Entre los cultivares se presentaron diferencias significativas respecto al resto, el cultivar CH 410 INTA presento los mayores contenidos de EGCG, EGC, EC y C, con 1,30; 0,19; 0,29 y 0,11% respectivamente; para CG el cultivar CH 318 INTA presenta el mayor contenido con 0,068%.Entre las épocas de zafra, se registraron diferencias significativas, con los mayores contenidos promedio al inicio de zafra para todas las catequinas analizadas. Sus contenidos para CGCG, EGC, EC, C y CG, fueron 1,47; 0,22; 0,27; 0,13 y 0,063% respectivamente.

  13. Lanthanide behavior in hypersaline evaporation ponds at Guerrero Negro, Baja California, Mexico - an environment with halophiles

    Science.gov (United States)

    Choumiline, K.; López-Cortés, A.; Grajeda-Muñoz, M.; Shumilin, E.; Sapozhnikov, D.

    2013-12-01

    Lanthanides are known, in some cases, to be sensitive to changes in water column or sediment chemistry, a fact that allows them to be used as environmental fingerprints. Nevertheless, the behavior of these elements in hypersaline environments is insufficiently understood, especially in those colonized by bacteria, archaea and eukarya halophiles. Extreme environments like the mentioned exist in the artificially-controlled ponds of the 'Exportadora de Sal' salt-producing enterprise located in Guerrero Negro (Baja California, Mexico). Sediment cores from various ponds were collected, subsampled and measured by ICP-MS and INAA. This allowed differencing the behavior of lanthanides and trace elements under a water column salinity gradient along the evaporation sequence of ponds. Sediment profiles (30 mm long), obtained in Pond 5, dominated by Ca and Mg precipitation and at the same time rich in organic matter due to bacterial mat presence, showed highs and lows of the shale-normalized patterns along different in-core depths. Two groups of elements could be distinguished with similar trends: set A (La, Ce, Pr and Nd) and set B (Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu). The first 'group A' had two prominent peaks at 15 mm and around 22 mm, whereas the 'group B' showed only slight increase at 15 mm and none at 22 mm. Microscopic analyses of prokaryotic cells of a stratified mat in Pond 5 (collected in 2004) showed filamentous bacteria and cyanobacteria with a cell abundance and morphotype richness maxima of prokaryotic cells in a chemocline from 3 mm to 7 mm depth which co-exists nine morphotypes of aerobic and anaerobic prokaryotes Microcoleus chthonoplastes, Leptolyngbya, Cyanothece, Geitlerinema, Spirulina, Chloroflexus, Beggiatoa, Chromatium and Thioploca. Below the 7 mm depth, oxygenic photosynthesis depletes and sulfur reducing compounds increase. The highs of the shale-normalized lanthanide contents of the 'group A' (at 15 mm depth) seem to correlate with the

  14. Condiciones para la transmision del hantavirus en zona andina de Río negro, Argentina

    Directory of Open Access Journals (Sweden)

    Gabriel Talmon

    2014-10-01

    Full Text Available El Síndrome Pulmonar por Hantavirus (SPH es una enfermedad de etiología viral que causa en el hombre un cuadro respiratorio grave. En Patagonia, la enfermedad es causada por el virus Andes Sur (AND, transmitido por el roedor Oligoryzomys longicaudatus. El objetivo del presente trabajo fue identificar las actividades del hombre que favorecen su exposición a roedores, denominados escenarios de contagio. Se realizó un estudio retrospectivo a partir de información recolectada en investigaciones de casos ocurridos en Río Negro, mediante Fichas Clínico-Epidemiológicas e informes de evaluación ecológico/ambiental. Se definieron como variables a ser consideradas: edad, sexo, época del año, grado de urbanización, localización geográfica, integración del hombre al hábitat de roedores, fuente probable de exposición, actividad humana y nivel de saneamiento. Se estudiaron 32 casos. La exposición rural se verificó en 18 (56.2% de los casos y 10 (31.3% en paraje rural (grupo de viviendas en zona rural. En relación al ambiente antropogénico 24 (75% resultaron en ambientes modificados por el hombre y 8 (25% en áreas poco modificadas. El sitio de exposición de mayor importancia en El Bolsón fue el interior de edificaciones en 8 de los 18 casos allí registrados (44.5%, mientras que en Bariloche fueron ambientes de exterior con 8/14 (57.1% casos. La actividad de riesgo fue laboral en 23 (71.9% de los casos y recreacional en 7 (28.1%. Determinar los escenarios de contagio a nivel local ha aportado información para aplicar todos los recursos disponibles en materia de prevención y educación sanitaria.

  15. O MOVIMENTO NEGRO BRASILEIRO E A LEI 10.639/03: DA CRIAÇÃO AOS DESAFIOS PARA A IMPLEMENTAÇÃO

    Directory of Open Access Journals (Sweden)

    Amilcar Pereira

    2017-04-01

    Full Text Available O objetivo deste artigo é discutir o processo de criação da Lei 10.639/2003, que tornou obrigatório no Brasil o ensino de histórias e culturas africanas e afro-brasileiras, como resultado da ação do movimento negro brasileiro, bem como refletir sobre os desafios presentes que se impõem ao processo de implementação desta legislação, a partir das perspectivas de lideranças do movimento negro brasileiro por mim entrevistadas nos últimos anos. O processo histórico que resultou na criação da referida lei é bastante longo e complexo, mas indubitavelmente teve como protagonista o movimento social negro. Uma vez criada a legislação, o passo seguinte, e ainda mais complexo, é o processo de sua implementação em um país tão desigual e diverso como o Brasil. O que dizem, nesse sentido, as lideranças do movimento negro?

  16. Resistance to Temptation in Young Negro Children in Relation to Sex of the Subject, Sex of the Experimenter and Father Absence or Presence.

    Science.gov (United States)

    Mumbauer, Corinne C.; Gray, Susan W.

    1969-01-01

    One of the differences in child development caused by the mother-dominant, father-absent structure of disadvantaged Negro families might be the differential development of resistance to temptation in male and female children. It would be expected that girls would be more resistant than boys, that girls would show no difference whether their father…

  17. Omnivory and resource - sharing in nutrient - deficient Rio Negro waters: stabilization of biodiversity? Omnivoria e repartição de recursos em águas pobres em nutrientes da Bacia do Rio Negro

    Directory of Open Access Journals (Sweden)

    Ilse Walker

    2009-09-01

    Full Text Available Amazonian biodiversity is notorious, this is also valid for the fauna of the mineral-deficient waters of the Rio Negro System. Some 25 years of research on the benthic fauna of Central Amazonian streams resulted in species-rich foodwebs with a high degree of omnivory within dense animal communities. To exemplify the taxonomic range of omnivorous consumers, the detailed resource spectra of 18 consumer species, including Protozoa (2 species, Platyhelminthes (1 species, insects (2 species, fish (6 species and shrimps (Decapoda, 7 species, associated primarily with the benthic habitats of Rio Negro tributaries, are presented. Special features of omnivory are characterized, and the importance of litter-decomposing fungi as essential energy input into the foodwebs is documented. It is shown that general omnivory -diverse omnivore consumers sharing most of the resource types- is a prevalent feature. The relevance of this general omnivory for the maintenance of biodiversity is discussed.A biodiversidade do Amazonas é notório e isto também é válido para as águas pobres em nutrientes da bacia do Rio Negro. Uma pesquisa de 25 anos da fauna béntica de igarapés da Amazônia Central resultou em redes alimentares caraterizadas por alta diversidade de espécies, por intensa omnivoria e por alta densidade populacional. Para demonstrar a generalidade taxonômica de omnivoria no bentos dos igarapés, são apresentados as listas de presas / recursos de 18 espécies de consumidores, sendo Protozoa (2 epécies, Platyhelminthes (1 espécie, insetos (2 espécies, peixes (6 espécies e camarões (Decapoda, 7 espécies. Diferentes categorias de omnivoria são apresentados, e a importância de fungos decompositores da liteira submersa como input básico de energia nas redes alimentares é demonstrada. É prevalente a omnivoria geral, sendo que as diferentes espécies omnívoros estão utilizando os mesmos recursos. Considera- se a relevância desta omnivoria geral

  18. Adaptación y rendimiento de la variedad de frijol “Negro Medellín” en el sureste de México

    Directory of Open Access Journals (Sweden)

    Ernesto L\\u00F3pez

    2000-01-01

    Full Text Available El presente estudio se llevó a cabo de 1994 a 1997 con el objetivo de evaluar la adaptación y rendimiento de la nueva variedad de frijol “Negro Medellín” en la región del Trópico Húmedo del sureste de México. Se condujeron diez ensayos de rendimiento, cinco en el estado de Veracruz, cuatro en Chiapas y uno en Guerrero. Los ensayos incluyeron 16 genotipos y se realizaron, de acuerdo a las facilidades disponibles en los sitios de prueba, bajo condiciones de humedad residual o de temporal. En las evaluaciones se utilizó un diseño de Bloques Completos al Azar con tres repeticiones. La variedad Negro Medellín resultó sobresaliente por su rendimiento, amplia adaptación, con respuesta superior en ambientes favorables y consistente (1226 kg/ha, bi >1,0, S2di = 0. Durante las evaluaciones, la variedad Negro Medellín resultó tolerante a las enfermedades: virus del mosaico dorado (BGMV, mancha angular (Phaoisariopsis griseola y roya (Uromyces appendiculatus var. appendiculatus, enfermedades de amplia distribución en la región tropical. Sin embargo, en una localidad de Veracruz Negro Medellín resultó susceptible a la antracnosis (Colletotrichum lindemuthianum. Además, la variedad Negro Medellín se validó en parcelas comerciales en campos de agricultores en diez localidades del sureste de México, localidades con clima tropical. En éstas parcelas comerciales, Negro Medellín resultó superior en rendimiento a diversos testigos, variedades criollas y mejoradas, de un 10 a 25%, obteniendo un rendimiento promedio de 1300 kg/ha. La variedad Negro Medellín está en trámite para su registro como nueva variedad para las regiones productoras del sureste de México

  19. Study guide for college algebra

    CERN Document Server

    Snow, James W; Shapiro, Arnold

    1981-01-01

    Study Guide for College Algebra is a supplemental material for the basic text, College Algebra. Its purpose is to make the learning of college algebra and trigonometry easier and enjoyable.The book provides detailed solutions to exercises found in the text. Students are encouraged to use the study guide as a learning tool during the duration of the course, a reviewer prior to an exam, a reference book, and as a quick overview before studying a section of the text. The Study Guide and Solutions Manual consists of four major components: basic concepts that should be learned from each unit, what

  20. Reassessment of the geologic evolution of selected precambrian terranes in Brazil, based on new SHRIMP U-Pb data, part 3: Borborema, Southern Mantiqueira and Rio Negro-Juruena provinces; Reavaliacao da evolucao geologica em terrenos pre-cambrianos brasileiros com base em novos dados U-Pb SHRIMP, parte 3: Provincias Borborema, Mantiqueira Meridional e Rio Negro-Juruena

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Luiz Carlos da; Pimentel, Marcio [Brasilia Univ., DF (Brazil). Inst. de Geociencias]. E-mail: luizcarlos@aneel.gov.br; Scandolara, Jaime; Ramgrab, Gilberto [Centro de Pesquisas e Recursos Minerais, Brasilia, DF (Brazil); Wildner, Wilson; Sander, Andrea [Centro de Pesquisas e Recursos Minerais, Porto Alegre, RS (Brazil); Angelim, Luiz Alberto de Aquino [Centro de Pesquisas e Recursos Minerais, Recife, PE (Brazil); Vasconcelos, Antonio Maurilio [Centro de Pesquisas e Recursos Minerais, Fortaleza, CE (Brazil); Rizzoto, Gilmar; Quadros, Marcio Luiz do Espirito Santo [Centro de Pesquisas e Recursos Minerais, Porto Veolho, RO (Brazil); Armstrong, Richard [Australian National Univ., Canberra (Australia). Research School of Earth Sciences; Rosa, Ana Lucia Zucatti da [PETROBRAS, Rio de Janeiro, RJ (Brazil). Centro de Pesquisas

    2002-12-15

    This paper discusses new SHRIMP U-Pb data for 17 key-exposures (mostly granites and ortho gneisses) from the Borborema, Southern Mantiqueira (Pelotas Orogen) and Rio Negro-Juruena provinces. In the Borborema Province (Ceara state) two samples from the Cruzeta Complex TTG ortho gneisses, ascribed to the Paleoproterozoic basement, were studied. One revealed Paleoarchean crystallization minimum age of ca. 3270 Ma. Accordingly, the gneiss is interpreted as the oldest continental crustal remnant already recognised in Ceara. The other sample, from the Saboeiro-Aiuaba Granite gave a crystallization age of ca. 625 Ma, suggesting the correlation of this syn-orogenic pluton with the Brasiliano II orogenic system (climax at 630 Ma). In the Paraiba state the granodioritic gneiss pluton ascribed to the Mesoproterozoic Sume Complex showed a crystallization age of ca. 640 Ma, also indicating that its evolution is associated with the Brasiliano II orogenic system. In the Pernambuco state one widespread ortho gneissic unit within the Pernambuco-Alagoas Massif (Belem do Sao Francisco Complex), mapped as a component of the Meso proterozoic Cariris Velho Orogen, yielded a crystallization age of ca. 2079 Ma and metamorphic overprinting at ca. 655 Ma (1{sigma}), without evidence of a Mesoproterozoic (Cariris Velhos) reworking. In the southern part of the province, near the northern margin of the Sao Francisco Craton, the Santa Maria da Boa Vista (S-type) orthogneiss yielded a crystallisation age of ca. 3070 Ma. In the southern Mantiqueira Province/Pelotas Orogen a foliated granitic pluton (mylonitic) from the Florianopolis Batholith showed Paleoproterozoic protolithic age of ca. 2175 Ma and imprecise Brasiliano age on reprecipitated overgrowths. Both results match previous ages obtained on the orthogneisses protoliths from the Aguas Mornas complex, the main exposure of reworked basement within the batholith. The large, zoned calc-alkaline pluton of the Maruim Suite, confirmed its

  1. [The concept of the organ, as a hierarchal unit of human body, and its place in teaching histology at the medical university and medical college].

    Science.gov (United States)

    Miadelets, O D; Miadelets, N Ia; Miadelets, V O

    2011-01-01

    This paper deals with the methodological aspects of teaching histology at the medical university and medical college. The authors raise the issue of the necessity of teaching of the topic "Introduction to Special Histology" and the inclusion of the appropriate chapter into the textbooks. This is important for the students, as the formation of the general concepts of organ structure and function, components, and classification will aid in the further study of specific organs during the course of Special Histology. The authors describe their own experience in teaching of the section, dedicated to the general regularities of organ structure, present some definitions and classifications that are used by them for a number of years.

  2. O estado nutricional de crianças Yanomami do Médio Rio Negro, Amazônia Yanomami children's nutritional status in the middle Rio Negro, Brazilian Amazônia

    Directory of Open Access Journals (Sweden)

    Jacques Istria

    2002-06-01

    Full Text Available O estado nutricional de 290 crianças, desde o nascimento até a idade de uns seis anos, da população Yanomami do Médio Rio Negro, Amazonas, foi observado em 1998 e 1999. Essa população tem um modo de viver tradicional e dispõe de um largo espaço para as atividades de caça e de colheita. O índice peso/altura foi comparado aos valores de referência do National Center for Health Statistics. Todas essas crianças são de pequena morfologia. Uma desnutrição (índice The nutritional status of 290 Yanomami Amerindians children, from birth to about six year-olds, living in the middle Rio Negro, Brazilian Amazonia, has been studied in 1998 and 1999 using the weight-for-height. All of them were of low stature. Twenty malnourished (7%, defined as below two standard deviations of NCHS' data, have been observed. Five of them showed a severe malnutrition (<= -3 SD. Differences appeared between the communities, however without evident connection with the practices of these groups and their contacts with the outside. These data indicate a lack of scarcity in this population who preserves a traditional way of life and disposes of a large space for gathering and hunting. The cases of malnutrition are probably a conjoined consequence of infectious attacks in children and of a special bad status in their group.

  3. Gêneros digitais: expandindo a comunicação no Movimento Negro da Paraíba

    Directory of Open Access Journals (Sweden)

    Mirian Mirian de Albuquerque Aquino Aquino

    2014-05-01

    Full Text Available Resumo: Investigar como o Movimento Negro do Estado da Paraíba se apropria dos gêneros digitais (e-mail, blog, redes sociais e etc. e usa-os na perspectiva de disseminar a informação étnico-racial é o objetivo deste trabalho. Entendemos que os gêneros digitais podem ser utilizados como um canal de comunicação e disseminação dessa informação para os grupos negros sociais e racialmente invisibilizados na atual sociedade da informação-conhecimento-aprendizagem, onde o preconceito, a discriminação e o racismo fazem parte do seu cotidiano. A abordagem qualitativa caracteriza-se como pesquisa interpretativa com potencial descritivo e exploratório. A pesquisa bibliográfica serviu para discutirmos sobre os conceitos, a construção das categorias teóricas e o discurso do sujeito coletivo. O universo da pesquisa foi o Movimento Negro Organizado da Paraíba e os sujeitos/participantes foram quatro integrantes vinculados ao Núcleo de Estudantes Negras e Negros da UFPB e a Organização de Mulheres Negras na Paraíba. Utilizamos a entrevista semiestruturada como instrumento para a coleta dos dados cuja análise recorremos a técnica do Discurso do Sujeito Coletivo (DSC que tem por base a Semiótica de Pierce e a Teoria das Representações Sociais. Os resultados mostraram que a ferramenta mais utilizada pelo MNOPB para veicular as informações é o e-mail. O uso do blog está associado à comunicação da informação étnico-racial apreendida pelo grupo. DIGITAL GENRES: EXPANDING COMMUNICATION IN THE BLACK MOVEMENT OF PARAIBA Abstract: Investigate how the Black Movement of Paraiba State appropriates gender digital (email, blog, social networks and so on. And uses them in view of disseminating information étnico-raciais is the goal of this work. It is understood that these digital genres can be used as a channel of communication and dissemination of such information to the socially invisible, in the current information society

  4. Poética da rua : estética do meio ambiente urbano em imagens de cineastas negros

    OpenAIRE

    Feitosa, Aida Rodrigues

    2016-01-01

    O presente trabalho é um esforço de elaboração de uma poética da rua a partir de imagens de filmes de cineastas negros. O objetivo é construir uma experiência visual poética singular, destacando a centralidade do espaço rua, como parte de um caminho de abertura poética às imagens fílmicas em sua relação com diferentes estéticas. Para tal investida, o referencial teórico é a fenomenologia, principalmente, a partir de estudos de Gaston Bachelard (2008) e Michel Maffesoli (2008). O recorte metod...

  5. Rescate y germinación in vitro de embriones inmaduros de cedro negro (Juglans neotropica Diels

    Directory of Open Access Journals (Sweden)

    Oscar Darío Quintero-García

    2012-01-01

    Full Text Available Embriones inmaduros de cedro negro (Juglans neotropica (Juglandaceae con 16 y 20 semanas de desarrollo fueron removidos asépticamente de los frutos y sembrados durante 60 días en los medios de cultivo MS (Murashige y Skoog, 1962, WPM (Lloyd y McCown, 1980 y DKW (Driver y Kuniyuki, 1984, sin reguladores de crecimiento. Se observó que embriones con 16 semanas de desarrollo no germinaron en los tres medios de cultivo; por el contrario, los embriones con 20 semanas de desarrollo presentaron una germinación de 100%. Se encontró un marcado efecto del medio en el crecimiento de los embriones, siendo el medio MS mejor (P < 0.05 que los medios DKW y WPM, debido a que en él los embriones presentaron mayor altura y proporción tallo/raíz para la obtención de plántulas completas.

  6. Negro é o inferno! Um ensaio sobre as cores dos homens, dos demônios e dos deuses

    OpenAIRE

    Walker Douglas Pincerati

    2016-01-01

    http://dx.doi.org/10.5007/1984-8420.2016v17n2p46 Problematiza-se o par negro.branco na formação social brasileira, trabalhando a hipótese de que ‘negro’ não é cor, mas a metáfora do corpo do ser infernal. Estatísticas oficiais, a história da formação do Brasil, um enunciado de um Deputado Federal Pastor, o quadro A libertação dos Escravos de Pedro Américo (1889) e a história da construção das catedrais góticas medievais são evocadas para analisá-lo, desde o ponto de vista linguístico-disc...

  7. TIPIFICACIÓN MORFOLÓGICA DE CURSOS PRINCIPALES. CUENCA DEL ARROYO EL NEGRO, SISTEMA DE VENTANIA, ARGENTINA

    Directory of Open Access Journals (Sweden)

    Alicia M. Campo

    2016-12-01

    Full Text Available Rivers are natural, dynamic and complex systems. Its main function is the transportation of water, sediments and nutrients, conforming areas of great ecological and territorial value. Morphology varies according to the structure and the drainage network. Fluvial systems typification classifies and characterize rivers in order to provide substantial information about every section. Although there are several classifications and characterizations, Rosgen’s combines hydrological, geomorphological and ecological aspects that serves as important indicators towards this study. River classifications are relevant to understanding natural systems and their function, being an instrument of major importance in territorial planning, which provides a significant benefit to environment and society. The area encloses the lower basin of El Negro stream in Sierra de la Ventana, Argentina. Thehomonym village occupies part of the floodplain of the main channel. In recent years, the real estate pressure in these areas led to the opening of new subdivisions for the construction of resorts, changing the stream morphology. The aim of this work is to morphologically characterize and typify a section located in the lower basin of El Negro stream to generate a methodology applicable to other courses in the sector. Before typification, sectioning was implemented following criteria by Ollero Ojeda y otros (2003 and utilizing aerial photographs. The corresponding portion of the lower basin was selected for morphological characterization as the one showing major changes due to being in the urbanized area. The investigation was done based on Thorne’s methodology (1998, and afterwards typified following Rosgen’s criteria (1994. The typification resulted in a A3 stream category based on its morphological characteristics. The methodology allows to comprehend fluvial dynamics and gather data from a sector where scarces or nonexists, in order to generate representative

  8. Negros e indígenas ocupam o templo branco: ações afirmativas na UFRGS

    Directory of Open Access Journals (Sweden)

    Arabela Campos Oliven

    Full Text Available Resumo: Na maioria dos países do mundo ocidental, universidades que formam a elite costumam ser redutos da branquidade refratários a grupos socialmente excluídos. No Brasil, com mais da metade da população formada por pretos e pardos, as universidades públicas sempre foram um território quase exclusivamente branco. O Rio Grande do Sul, estado brasileiro com a segunda maior percentagem de população branca do país, reflete esse quadro. Ele enaltece o legado dos grupos imigrantes de origem europeia em contraste com a pequena visibilidade atribuída à contribuição da população negra e indígena. No período 2008 a 2012, a Universidade Federal do Rio Grande do Sul, a mais importante do estado, implementou uma política de ação afirmativa que aumentou as oportunidades de alunos pretos, pardos e indígenas entrarem em seus cursos de graduação. O artigo discute essa política - sua aprovação, características, implantação, avaliação e reformulação, assim como seus resultados. Analisa a experiência de um grupo de universitários negros e indígenas, que foram dos primeiros a ingressar na UFRGS através da reserva de vagas. Ao final, aponta os significados das políticas de inclusão de negros e indígenas nas universidades públicas brasileiras e os desafios que elas representam para essas instituições.

  9. Spawning areas, dispersion and microhabitats of fish larvae in the Anavilhanas Ecological Station, rio Negro, Amazonas State, Brazil

    Directory of Open Access Journals (Sweden)

    Edinbergh C. de Oliveira

    Full Text Available The abundance and distribution of ichthyoplankton and their relationships to current velocity, temperature, dissolved oxygen, pH and electrical conductivity of the water in the Anavilhanas Ecological Station, Negro River, Amazonas State, Brazil, were analyzed. Preferred microhabitats for spawning, dispersion and nursery were also verified. Sampling was undertaken during the falling water period of 2001 and the rising water period of 2002, in a section of 100 km subdivided into 5 subsections, with a total of 20 stations (5 beaches, 5 ravines, 5 channels, and 5 lake channels at night and during the day at the surface and at the bottom. 647 eggs and 4,187 larvae were captured, belonging to 10 families and four orders: Characiformes (6, Siluriformes (2, Perciformes (1, and Clupeiformes (1. Engraulidae (55.39%, Pimelodidae (30.45%, Auchenipteridae (5.23% and Sciaenidae (5.13% were the dominant families. The hierarchical statistical model (ANOVA with three factors (microhabitat, depth and period was applied to the environmental variables and the larval abundance, showing greater abundances of sciaenids in the ravines and lower abundances of engraulids in the channels. The highest captures were obtained at lower temperature values, at the bottom during the day and at the surface at night, suggesting an active larval behavior. The presence of the four larval development stages in all subsection for pimelodids and sciaenids, and in three subsections for engraulids, indicates that the Anavilhanas Ecological Station is an important spawning and nursery area for species of these groups in the Negro River. Larvae abundance of all characiform families was extremely low (from 0.1 to 1.17%, suggesting that they do not spawn in this system.

  10. A Historical Analysis of Basic Air Force Doctrine Education within the United States States Air Force Air Command and Staff College, 1947-1987.

    Science.gov (United States)

    1987-09-01

    doctrine, especially joint doctrine. Because of this we make mistakes. I believe that the Air Force needs to develop a formal doctrinallo education...jresenteo arguments for all three points of view, but ne was particularly critical of tne educacional system within tae United States military. He said tnat

  11. College education

    Science.gov (United States)

    Criswell, David R.

    1990-01-01

    Space Grant Colleges and Universities must build the space curriculum of the future on the firm basis of deep knowledge of an involvement with the present operating programs of the nation and an on-going and extensive program of leading edge research in the aerospace sciences and engineering, management, law, finance, and the other arts that are integral to our planetary society. The Space Grant College and Fellowship Program must create new academic fields of enquiry, which is a long and difficult process that will require deeper and broader interaction between NASA and academia than has previously existed.

  12. College algebra

    CERN Document Server

    Kolman, Bernard

    1985-01-01

    College Algebra, Second Edition is a comprehensive presentation of the fundamental concepts and techniques of algebra. The book incorporates some improvements from the previous edition to provide a better learning experience. It provides sufficient materials for use in the study of college algebra. It contains chapters that are devoted to various mathematical concepts, such as the real number system, the theory of polynomial equations, exponential and logarithmic functions, and the geometric definition of each conic section. Progress checks, warnings, and features are inserted. Every chapter c

  13. Drugs + HIV, Learn the Link

    Medline Plus

    Full Text Available ... and unsafe sexual practices. Drug use disorder treatment programs also serve an important role in providing current ... Psychiatry (AACAP) The United Negro College Fund, Special Programs Latino Commission on AIDS Azteca America Foundation/Vive ...

  14. Empowering Minority Communities with Health Information - WSSU

    Energy Technology Data Exchange (ETDEWEB)

    McMurray, L. and W. Templin-Branner

    2010-11-10

    Environmental health focus with training conducted as part of the United Negro College Fund Special Programs Corporation/National Library of Medicine HBCU ACCESS Project at Winston-Salem State University, NC on November 10, 2010.

  15. Drugs + HIV, Learn the Link

    Medline Plus

    Full Text Available ... with HIV is a key predictor of the development of AIDS. Because of their compromised immune system, ... Children, Youth and Families The American Academy of Child & Adolescent Psychiatry (AACAP) The United Negro College Fund, ...

  16. Drugs + HIV, Learn the Link

    Medline Plus

    Full Text Available ... Children, Youth and Families The American Academy of Child & Adolescent Psychiatry (AACAP) The United Negro College Fund, ... of Distance Education University of Southern California, Maternal Child & Adolescent Program University of Illinois Chicago, Center of ...

  17. Drugs + HIV, Learn the Link

    Medline Plus

    Full Text Available ... link between non-injection drug use and HIV. Television Networks: MunDos Azteca America ... and Families The American Academy of Child & Adolescent Psychiatry (AACAP) The United Negro College Fund, ...

  18. Drugs + HIV, Learn the Link

    Medline Plus

    Full Text Available ... are at risk for contracting HIV. In general, middle and late teen years are when young people ... Children, Youth and Families The American Academy of Child & Adolescent Psychiatry (AACAP) The United Negro College Fund, ...

  19. Drugs + HIV, Learn the Link

    Medline Plus

    Full Text Available ... of technology, the discussion between friends, and the importance of family. For more information, read a message ... Children, Youth and Families The American Academy of Child & Adolescent Psychiatry (AACAP) The United Negro College Fund, ...

  20. Drugs + HIV, Learn the Link

    Medline Plus

    Full Text Available ... between drug misuse and HIV/AIDS. In the early years of the HIV epidemic, it became clear ... Children, Youth and Families The American Academy of Child & Adolescent Psychiatry (AACAP) The United Negro College Fund, ...

  1. Structure, Process, and Culture of Intensive Care Units Treating Patients with Severe Traumatic Brain Injury: Survey of Centers Participating in the American College of Surgeons Trauma Quality Improvement Program.

    Science.gov (United States)

    Alali, Aziz S; McCredie, Victoria A; Mainprize, Todd G; Gomez, David; Nathens, Avery B

    2017-10-01

    Outcome after severe traumatic brain injury (TBI) differs substantially between hospitals. Explaining this variation begins with understanding the differences in structures and processes of care, particularly at intensive care units (ICUs) where acute TBI care takes place. We invited trauma medical directors (TMDs) from 187 centers participating in the American College of Surgeons Trauma Quality Improvement Program (ACS TQIP) to complete a survey. The survey domains included ICU model, type, availability of specialized units, staff, training programs, standard protocols and order sets, approach to withdrawal of life support, and perceived level of neurosurgeons' engagement in the ICU management of TBI. One hundred forty-two TMDs (76%) completed the survey. Severe TBI patients are admitted to dedicated neurocritical care units in 52 hospitals (37%), trauma ICUs in 44 hospitals (31%), general ICUs in 34 hospitals (24%), and surgical ICUs in 11 hospitals (8%). Fifty-seven percent are closed units. Board-certified intensivists directed 89% of ICUs, whereas 17% were led by neurointensivists. Sixty percent of ICU directors were general surgeons. Thirty-nine percent of hospitals had critical care fellowships and 11% had neurocritical care fellowships. Fifty-nine percent of ICUs had standard order sets and 61% had standard protocols specific for TBI, with the most common protocol relating to intracranial pressure management (53%). Only 43% of TMDs were satisfied with the current level of neurosurgeons' engagement in the ICU management of TBI; 46% believed that neurosurgeons should be more engaged; 11% believed they should be less engaged. In the largest survey of North American ICUs caring for TBI patients, there is substantial variation in the current approaches to ICU care for TBI, highlighting multiple opportunities for comparative effectiveness research.

  2. Understanding the College First-Year Experience

    Science.gov (United States)

    Kidwell, Kirk S.

    2005-01-01

    Each fall, thousands of high school graduates launch into the next phase of their academic careers: college. They arrive on campuses across the United States full of hope and optimism, trepidation and anxiety. All intensely feel both the eagerness to excel and the fear of failure. The author shares his experience of dealing with college first-year…

  3. Entre Selva y ciudad: estrategias de producción en el Río Negro medio (Brasil

    Directory of Open Access Journals (Sweden)

    2000-01-01

    Full Text Available ENTRE LA FORÊT ET LA VILLE: STRATÉGIE DE PRODUCTION SUR LE MOYEN RIO NEGRO (BRÉSIL. Cet article s’intéresse à l’évolution des systèmes de production en Amazonie du nord-ouest, sur le moyen Rio Negro. Il montre comment les activités extractivistes et agricoles se sont articulées lors des différents cycles économiques régionaux de ce siècle. Le faible impact de ces activités sur le milieu est souligné. Avec le déclin de l’extractivisme dans les années 1980-1990, les populations locales, à la recherche d’autres revenus, intensifient la production de farine de manioc. Mais les prix sont extrêmement bas et le marché n’est pas organisé pour les producteurs ruraux, ce qui rend cette activité peu rémunératrice. Le manque de revenus et d’autres éléments comme l’accès aux soins et à l’éducation, poussent bon nombre de familles à s’installer dans les petites villes. Elles continuent à pratiquer une agriculture en périphérie urbaine. Toutefois le système agricole, remodelé par les conditions locales, ne constitue plus qu’une forme appauvrie du système traditionnel. En este artículo se analiza desde el punto de vista ecológico, la evolución de los sistemas productivos del noroeste amazónico brasileño. Se muestra cómo las actividades extractivistas y agrícolas se combinaron durante los diversos ciclos económicos regionales del último siglo, y se se destaca el bajo impacto de estas actividades sobre la selva. Con la declinación del extractivismo en los años 80-90, la población local, en busca de nuevos ingresos económicos, se vuelca hacia la producción de harina de yuca. Pero los precios muy bajos y un mercado que es estructurado para los productores rurales, no estimula esa producción. La escasez de recursos económicos y otros elementos, como la falta de servicios de base en salud y educación, llevan a muchas familias a emigrar hacia las pequeñas ciudades de las márgenes del río Negro all

  4. Frantz Fanon y la Enajenación del Negro y del Blanco en el Sistema Colonial

    Directory of Open Access Journals (Sweden)

    Ana Catarina Zema de Resende

    2016-11-01

    Full Text Available Resumen A partir de la lectura de Piel negra, máscaras blancas, propongo en este artículo reflexionar sobre las ideas de Frantz Fanon a cerca de la enajenación del negro y del blanco en el sistema colonial. El objetivo es recuperar algunos de los principales aportes de Fanon para la comprensión del racismo colonial desde su teoría de la enajenación. Fanon presenta la enajenación como un paso previo a la esclavitud y al colonialismo, necesario para el mantenimiento de la explotación económica y analiza las conductas identitarias de "vergüenza de sí" como el resultado de la dominación colonial. Él describe con precisión el impacto del racismo y del colonialismo y sus efectos destructivos mostrando cómo los mecanismos de enajenación determinan la relación entre el blanco y el negro y cómo se reproducen las jerarquías que rigen estas relaciones. Retomar el pensamiento de Fanon y reconocer la pertinencia y actualidad de sus contribuciones es esencial para poder reubicar la lucha contra todas las formas de dominación en la continuación de la lucha contra el colonialismo en una época en que la identidad racial y el racismo han más que probado su capacidad de persistir en el tiempo y el espacio. Palabras clave: Frantz Fanon; Enajenación; Racismo; Sistema Colonial. Frantz Fanon and the Alienation of Black and White in the Colonial System Abstract From the reading of Black Skin, White Masks, in this article I propose to reflect on Frantz Fanon's ideas about alienation of black and white in the colonial system. The goal is to recover some of his most important contributions to the understanding of colonial racism from his theory of alienation. Fanon presents alienation as a prior step to slavery and colonialism, necessary for the maintenance of economic exploitation and analyzes the identity conducts of self shame as a result of colonial domination. Fanon accurately describes the impact of racism and colonialism and its destructive

  5. Calidad nutricional y consumo de morera (Morus alba, ramio (Bohemeria nivea (L Gaud y sorgo negro forrajero (Sorghum almum en cabras

    Directory of Open Access Journals (Sweden)

    Jorge Elizondo Salazar

    2004-01-01

    Full Text Available Calidad y consumo de morera (Morus alba, ramio (Bohemeria nivea (L Gaud y sorgo negro forrajero (Sorghum almum en cabras. El experimento se llevó a cabo en la Estación Experimental Alfredo Volio Mata de la Universidad de Costa Rica. Se evaluó y comparó el consumo de morera, ramio y sorgo negro forrajero en nueve cabras raza La Mancha, con un peso promedio de 38 (±1 kg, distribuidas en un diseño de cuadrado latino 3 x 3 repetido. Los tratamientos experimentales fueron: a dieta única de morera, b dieta única de ramio y c dieta única de sorgo negro. La morera con una edad de rebrote de 90 días, el ramio con 56 días y el sorgo negro con 70 días. El forraje se suministró en forma fresca picada (tallos y hojas. Se recolectaron muestras del material ofrecido y rechazado para el análisis de materia seca, proteína cruda y fibra neutro detergente. Se observaron diferencias altamente significativas (P≤0,01 para el consumo de forraje fresco, materia seca, proteína cruda y fibra neutro detergente. La ingesta de materia seca para los diferentes tratamientos se encontró dentro del rango reportado en la literatura, siendo de 1,94, 0,97 y 0,90 del peso vivo respectivamente. Con los consumos de proteína cruda obtenidos con la dieta de morera y ramio, los animales cubrieron sus necesidades de mantenimiento y suplieron el nutrimento de forma extra para alcanzar ganancias de peso diarias superiores a los 50 gramos. La dieta que presentó los mayores niveles de consumo de forraje verde, forraje seco, proteína cruda y fibra neutro detergente fue la correspondiente a morera, seguida de la dieta de ramio.

  6. Doença de Tay-Sachs em criança de raça negra Tay-Sachs disease in a Negro child

    Directory of Open Access Journals (Sweden)

    Sérgio Rosemberg

    1970-12-01

    Full Text Available É relatado um caso de doença de Tay-Sachs em criança da raça negra. O encontro desta entidade em indivíduos não judeus é bastante raro, sendo este o quinto caso descrito em criança negra. Os autores estudam alguns aspectos genéticos, chegando à conclusão de que o cálculo da freqüência do gene mutante é impossível devido ao pequeno número de casos e ao fato de que não há estimativas seguras quanto à taxa de nascimento de indivíduos negros na população, Em que pese o fato de o diagnóstico se assentar em bases puramente clínicas e anatômicas, prescindindo os autores de exames bioquímicos específicos, os dados apresentados são congruentes com os casos clássicos descritos na literatura.A case of Tay-Sachs diseases in a Negro child is reported. The occurrence of this disease in non-Jewish individuals is very rare and this is the fifth case of a Negro-child reported in the litterature. Some genetical aspects are studied and the authors conclude that the frequency calculation of the mutant gene is impossible due to the small number of cases and to the fact that there is reliable information regarding the rate of birth of Negro individuals in the general population. The diagnosis was based on ophtalmological and clinical data. No specific biochemical tests were performed but the data obtained are congruent with other cases reported in the litterature.

  7. NEGROS EM MOVIMENTO: ETIÓPIA, RESISTÊNCIA CULTURAL E AFIRMAÇÃO ÉTNICA NA PÓS-EMANCIPAÇÃO

    Directory of Open Access Journals (Sweden)

    Íris Graciela Germano

    2010-06-01

    Full Text Available Esse estudo parte da Etiópia no imaginário afro-brasileiro pós-emancipação através da análise da imprensa negra e de alguns pensadores negros. Busca-se entender como circulavam idéias de afirmação de identidade étnica que chegaram ao Brasil vindas dos Estados Unidos, Caribe, Europa e África, ou seja, como dialogavam diferentes descendentes de africanos espalhados em vários pontos do Atlântico negro que viveram conjuntamente, embora de formas diferenciadas, a experiência da escravidão, da diáspora e do racismo. O contexto internacional que viu emergir o Pan-Africanismo, o Négritude e a descolonização da África e do Caribe, entrecruza, dialoga e se relaciona com negros em movimento no Brasil, influenciando a construção étnica afro-brasileira em deslocamentos que são de idas e vindas. Mesmo reconhecendo as diversidades e fragmentações presentes na realidade afro-diaspórica entende-se ser possível encontrar laços de solidariedade e trocas transnacionais. Palavras-chave: Etiópia – identidade negra – diáspora africana – pan-africanismo - etnicidade

  8. Influência de Negro de Fumo Modificado com Polianilina na Estrutura de Compósitos com Poli(Fluoreto de Vinilideno

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    Zucolotto Valtencir

    2002-01-01

    Full Text Available Compósitos condutores elétricos a base de poli(fluoreto de vinilideno (PVDF e negro de fumo modificado com polianilina (Eeonomer® foram preparados através do processamento por fusão. Resultados de reometria de torque indicaram que a presença de polianilina no negro de fumo é vantajosa ao processamento por fusão, reduzindo a viscosidade do fundido em comparação com a aditivação com negro de fumo puro. Compósitos contendo acima de 5% em peso de Eeonomer® apresentaram condutividade da ordem de 10-2 S/cm. Esse valor se manteve estável mesmo após tratamento térmico a 150degreesC por 170 h em atmosfera ambiente. Análises por calorimetria diferencial de varredura (DSC e difração de Raios-X mostraram que o tipo e a quantidade de Eeonomer®, assim como a taxa de resfriamento da amostra, podem afetar a temperatura de fusão, o grau de cristalinidade e a fase cristalina do PVDF presente no compósito.

  9. Welcoming a New Generation to College: The Millennial Students

    Science.gov (United States)

    Elam, Carol; Stratton, Terry; Gibson, Denise D.

    2007-01-01

    High on any required reading list for college-level student affairs officers and high school counselors is "Millennials Rising: The Next Great Generation" by Neil Howe and William Strauss (2000). Experts on generational change in the United States, the authors contend that the current generation of college-age and pre-college-age…

  10. Can "Some College" Help Reduce Future Earnings Inequality?

    Science.gov (United States)

    Gitterman, Daniel P.; Moulton, Jeremy G.; Bono-Lunn, Dillan; Chrisco, Laura

    2015-01-01

    This article addresses the policy debate over "college for all" versus "college for some" in the United States and analyzes the relationship between "some college" (as a formal education attainment category) and earnings. Our evidence confirms--using data from the American Community Survey (ACS), the Panel Study on…

  11. Mental Health and Substance Use of Sexual Minority College Athletes

    Science.gov (United States)

    Kroshus, Emily; Davoren, Ann Kearns

    2016-01-01

    Objective: Assess the mental health and substance use of sexual minority collegiate student-athletes in the United States, as compared with heterosexual college students and heterosexual student-athletes. Participants: Undergraduate students (N = 196,872) who completed the American College Health Association's National College Health Assessment…

  12. The Role of Collectivism among Latino American College Students

    Science.gov (United States)

    Arevalo, Irving; So, Dominicus; McNaughton-Cassill, Mary

    2016-01-01

    In an attempt to explain the lower Latino college graduation rate, the current study focuses on collectivism in kin and nonkin helping situations. The sample comprised 60 students at a 4-year college in the southwestern United States. Results revealed significance between ethnicity and nonkin collectivism: Latino American college students were…

  13. High-risk versus low-risk football game weekends: differences in problem drinking and alcohol-related consequences on college campuses in the United States.

    Science.gov (United States)

    Champion, Heather; Blocker, Jill N; Buettner, Cynthia K; Martin, Barbara A; Parries, Maria; Mccoy, Thomas P; Mitra, Ananda; Andrews, David W; Rhodes, Scott D

    2009-01-01

    Collegiate football games provide multiple social opportunities for alcohol use by students over the course of the weekend. The goal of this study was to examine alcohol use and alcohol-related consequences on football game weekends to determine differences based on characteristics of the game. A random sample of students from two large, public universities in the United States completed a survey on the Sunday-Friday following a high-risk weekend (HRW, important, home game) and low-risk weekend (LRW, no home game or game of importance) (N = 3,238 total). The survey measured the number of days students drank (0-3) and got drunk (0-3) over the weekend and whether 1+ consequences were experienced due to one's own drinking (yes/no) and due to others' drinking (yes/no). Ordinal logistic regression analyses revealed greater odds of drinking alcohol (OR = 1.70, CI = 1.46-1.97) and getting drunk (OR = 1.49, CI = 1.27-1.76) on HRW versus LRW. Logistic regression analyses revealed greater odds of experiencing 1+ consequences as a result of one's own drinking (OR = 1.38, CI = 1.16-1.63) and experiencing 1+ consequences as a result of others' drinking (OR = 1.52, CI = 1.30-1.78) on HRW versus LRW. These findings suggest that additional prevention efforts aimed at reducing risky drinking are needed over HRW and have implications for campus administrators, law enforcement, and substance abuse program coordinators.

  14. The Community College Option

    Science.gov (United States)

    Rosenbaum, James E.; Ahearn, Caitlin; Rosenbaum, Janet

    2016-01-01

    Efforts to promote college for all for all has opened college doors to a broad range of students. But college--and career success after college--doesn't have to mean a bachelor's degree. Community college credentials, such as associate's degrees and one-year certificates, can lead to further degrees or jobs that offer more benefits than students…

  15. Indios, blancos y negros. Relaciones interétnicas en la frontera de Chiquitos con Mato Grosso, siglo XVIII

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    Cecilia Martínez

    2017-11-01

    Full Text Available Este artículo describe la situación de la frontera entre los imperios español y portugués en el alto río Paraguay en las épocas jesuítica y colonial tardía (siglo XVIII. Señala las transformaciones en la cartografía étnica que tuvieron lugar a partir de la tardía conquista y colonización de la región. Se tienen en cuenta procesos sociohistóricos como las incursiones esclavistas de los bandeirantes portugueses, la guerra chiquito-guaycurú, la disputa territorial entre ambas coronas ibéricas, y los cambios en la administración de la provincia de Chiquitos después de la expulsión de los jesuitas. Se analizan los cambios socioculturales y en las relaciones interétnicas, provocados por esos procesos históricos, prestando especial atención en la incidencia que tuvieron entre los grupos indígenas que poblaban las zonas aledañas al río, así como también en la vinculación de éstos con otros actores sociales blancos y negros, provenientes del reino de Portugal.

  16. Bioavailability, ecotoxicity, and geological characteristics of trace lead in sediments from two sites on Negro River, Uruguay, South America.

    Science.gov (United States)

    Míguez, Diana M; Huertas, Raquel; Carrara, María V; Carnikián, Agustín; Bouvier, María E; Martínez, María J; Keel, Karen; Pioda, Carolina; Darré, Elena; Pérez, Ramiro; Viera, Santiago; Massa, Enrique

    2012-04-01

    Bioassays of two sites along the Rio Negro in Uruguay indicate ecotoxicity, which could be attributable to trace concentrations of lead in river sediments. Monthly samples at two sites at Baygorria and Bonete locations were analyzed for both particle size and lead. Lead was determined by atomic spectrometry in river water and sediment and particle size by sieving and sedimentation. Data showed that Baygorria's sediments have greater percentage of clay than Bonete's (20.4 and 5.8%, respectively). Lead was measurable in Baygorria's sediments, meanwhile in Bonete's, it was always below the detection limit. In water samples, lead was below detection limit at both sites. Bioassays using sub-lethal growth and survival test with Hyalella curvispina amphipod, screening with bioluminescent bacteria Photobacterium leiognathi, and acute toxicity bioassay with Pimephales promelas fish indicated toxicity at Baygorria, with much less effect at Bonete. Even though no lethal effects could be demonstrated, higher sub-lethal toxicity was found in samples from Baygorria site, showing a possible concentration of the contaminant in the clay fraction.

  17. Rescate y germinación in vitro de embriones inmaduros de cedro negro (Juglans neotropica Diels

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    Quintero García Oscar Darío

    2012-03-01

    Full Text Available

    Embriones inmaduros de cedro negro (Juglans neotropica (Juglandaceae con 16 y 20 semanas de desarrollo fueron removidos asépticamente de los frutos y sembrados durante 60 días en los medios de culti+o M- (Muras3ige 4 -koog, 99<=, WPM (Blo4d 4 McCoFn, 9980 4 GHW (Gri+er 4 Huni4uki,

    9984, sin reguladores de crecimiento. -e  obser+ó que embriones con 9< semanas de desarrollo no germinaron en los tres medios de cultivo; por el contrario, los embriones con 20 semanas de desarrollo presentaron una germinación de 100%. Se encontró un marcado efecto del medio en el crecimiento de los embriones, siendo el medio M- meOor (P P 0.05 que los medios GHW 4 WPM, debido a que en él los embriones Wresentaron ma4or altura 4 WroWorción talloXraiY Wara la obtención de WlZntulas comWletas

  18. Morfologia de frutos, sementes e desenvolvimento pós-seminal de cabelo-de-negro - Connarus suberosus Planch. (Connaraceae

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    Miele Tallon Matheus

    2009-12-01

    Full Text Available This study describe and illustrate the morphological aspects of cabelo-de-negro (Connarus suberosus Planch. fruits, seeds and post-seminal development. The fruits were characterized externally, the seeds internally and externally, and the germination and initial development of the seedlings were also analyzed and described. A stereoscope microscope was used for the observations whereas the measurements were made with a pachimeter. Fruits are ovoid and dehiscent follicles, of ferruginous-yellow color, containing one or two seeds. The seed has a reniform shape, showing dark coat and a circular hilum, which is recovered by the yellow-orange arilum. Seeds have axial and invaginated embryo, with green cotyledons that show various specks of ferruginous-reddish pigmentation, and a short, straight and cylindrical hypocotil-radicle axis. Seed germination was hypogeous and criptocotylar. The primary root emerges after 3 to 10 days, followed by the emergence of the protophyll, which occurs from around 10 to 20 days after sowing.

  19. Quem é negro, quem é branco: desempenho escolar e classificação racial de alunos

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    Marília Carvalho

    2005-01-01

    Full Text Available This article is based on research undertaken with classes from the 1st to 4th grades of primary education in a public school in the municipality of São Paulo and discusses the differences between the racial classification of school children carried out by teachers and that made by the children themselves. The concept of race adopted is that of “social race”, that is, a social construct based on an erroneous biological idea but which has proved efficient for maintaining privileges. Concludes that the fact that the difference in school performance between white and black children in the school is greater when the teachers’ classification is employed in place of self-classification results as much from teachers ‘whitening’ children with good performance as from their evaluating children, chiefly boys, they perceive as Negroes with greater rigour. It further emphasises that it is not a case of accusing the teachers of deliberate racial discrimination but of investigating the ways in which racism, present in Brazilian society as a whole, also penetrates school relations.

  20. Perlas y piel de azabache. El negro en las pesquerías de las Indias Occidentales

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    Tardieu, Jean Pierre

    2008-12-01

    Full Text Available Not very long after the Discovery, the pearls from the West Indies competed with those from the Orient for the full regalia of the ladies of the gentry, or that of the most revered virgins, while raising the curiosity of the best known chroniclers and creating an excruciating tax system. Considering the legislation passed for the benefit of Indians, those were to a large extent replaced in the “pearl fisheries” by black slaves submitted by the covetousness of their masters and the interests of the Crown to horrendous living and working conditions which most of the time relentlessly led them to death.

    Poco después del Descubrimiento, las perlas de las Indias occidentales rivalizaron con las de Oriente para el adorno de las damas de la alta sociedad o de las Vírgenes más veneradas, suscitando la curiosidad científica de los cronistas más conocidos y una exigente legislación fiscal. Debido a las leyes emitidas a favor de los indios, éstos se sustituyeron en gran parte, en las pesquerías de perlas, por esclavos negros sometidos —por la codicia de los amos y el interés de la Corona— a despiadadas condiciones de vida y de trabajo que desembocaban las más veces en una muerte inexorable.

  1. Reclutamiento político en Brasil. Mujeres, negros y partidos en las elecciones federales de 2014

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    Bruno Bolognesi

    2016-01-01

    Full Text Available El objetivo de este artículo es presentar un abordaje sistemático de la influencia de las ocupaciones profesionales sobre el reclutamiento político parlamentario. Se pone a prueba la hipótesis de Norris y Lovenduski (1997, según la cual ciertas ocupaciones son más propensas a generar éxito político que otras, a partir del análisis de 5 219 casos de candidatos que compitieron para un cargo en la Cámara de Diputados de Brasil en las elecciones de 2014. Agregamos las ocupaciones declaradas en categorías considerando la mayor o menor predisposición de las mismas para la política y evaluamos la influencia de esa variable societal sobre el resultado de la elección. Sumamos al tipo de ocupación otros atributos como el sexo, color de piel y tamaño del partido político por el cual presentó su candidatura. Nuestros resultados revelan una fuerte asociación entre las ocupaciones con alta disposición para la política y el éxito electoral, inclusive en el caso de las mujeres y de los candidatos de partidos pequeños, aunque no en el caso de los candidatos negros.

  2. Positivar a imagem do negro desde a educação infantil: uma experiência no nordeste goiano

    Directory of Open Access Journals (Sweden)

    Jonathas Vilas Boas de Sant'Ana

    2015-11-01

    Full Text Available O objetivo do presente artigo é evidenciar a necessidade de estratégias para a positivação da imagem do negro desde a Educação Infantil. Para tanto, faz-se contextualização e problematização teórico-prática de um projeto em educação das relações étnico-raciais realizada pelo autor no nordeste goiano durante o período de Estágio Supervisionado no ano de 2014. Na análise desta experiência destacam-se potenciais e dificuldades, levando a repensar a educação escolar para que o trabalho com esta questão tenha centralidade no ato educativo e alinhe-se a uma pedagogia complexa e antirracista nesta região e na sociedade brasileira. Palavras-chave: Imagem; educação das relações étnico-raciais; nordeste goiano; estágio supervisionado; educação infantil; antirracismo.

  3. Influence of seasonality on the interaction of mercury with aquatic humic substances extracted from the Middle Negro River Basin (Amazon)

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, Luciana C. de, E-mail: lcamargo@ufscar.br [Federal University of Sao Carlos (UFSCar), Sorocaba, SP (Brazil); Botero, Wander G. [Federal University of Alagoas (UFAL), Arapiraca, AL (Brazil); Santos, Felipe A. [Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, SP (Brazil); Sargentini Junior, Ezio [National Amazon Research Institute (INPA), Manaus, AM (Brazil); Rocha, Julio C.; Santos, Ademir dos [Institute of Chemistry of Araraquara, Sao Paulo State University (UNESP), Araraquara, SP (Brazil)

    2012-09-15

    High mercury concentrations in different environmental matrices in the Amazon have been attributed to mining activities. However, high concentrations of mercury are also present in the soil and water in places like in the middle of the Negro River Basin, which is far away from any anthropogenic emission sources. The Amazon region is characterized by two different regional seasons, with well-defined flood and low water periods. The objective of this work was to investigate the seasonal influences of the interaction between mercury and aquatic humic substances (AHS), which are the main agents of the natural organic complexation capacity. The results of the multivariate statistical analysis of the data showed that the humic substances had different structural characteristics, depending on each season. The ability of humic substances to form complexes with Hg(II) is not directly related to their carbon content, but to the nature and availability of the functional groups present in its structure. The functional groups are carboxylic and aromatic directly related to the higher complexation capacity of AHS by mercury ions. (author)

  4. Influence of seasonality on the interaction of mercury with aquatic humic substances extracted from the Middle Negro River Basin (Amazon)

    International Nuclear Information System (INIS)

    Oliveira, Luciana C. de; Botero, Wander G.; Santos, Felipe A.; Sargentini Junior, Ezio; Rocha, Julio C.; Santos, Ademir dos

    2012-01-01

    High mercury concentrations in different environmental matrices in the Amazon have been attributed to mining activities. However, high concentrations of mercury are also present in the soil and water in places like in the middle of the Negro River Basin, which is far away from any anthropogenic emission sources. The Amazon region is characterized by two different regional seasons, with well-defined flood and low water periods. The objective of this work was to investigate the seasonal influences of the interaction between mercury and aquatic humic substances (AHS), which are the main agents of the natural organic complexation capacity. The results of the multivariate statistical analysis of the data showed that the humic substances had different structural characteristics, depending on each season. The ability of humic substances to form complexes with Hg(II) is not directly related to their carbon content, but to the nature and availability of the functional groups present in its structure. The functional groups are carboxylic and aromatic directly related to the higher complexation capacity of AHS by mercury ions. (author)

  5. Pleistocene-Holocene sedimentation of Solimões-Amazon fluvial system between the tributaries Negro and Madeira, Central Amazon

    Directory of Open Access Journals (Sweden)

    Eliezer Senna Gonçalves Júnior

    Full Text Available ABSTRACT: In the scope of Solimões-Amazon fluvial system between the Negro and Madeira tributaries, three levels of Quaternary fluvial terraces overlie the Alter do Chão and Novo Remanso formations further than 100 km southward its current main channel. Smooth undulated topography presenting low drainages density formed by sparse secondary plain channels and rounded lakes characterizes these deposits. Internally, they show point bars morphology constituted by intercalated layers of mud (silt and clay and sand forming an inclined heterolithic stratification. The asymmetric distribution of fluvial terraces allied to the records of old scroll-bars features and paleochannels in many extensions of the Solimões River suggests the predominance of a meander pattern between 240 to 6 kyears. On the other hand, the development of the current anabranching pattern took place in the last six kyears due to the Holocene sea-level rise, besides the action of neotectonics and rainforest establishment related to the increase of humidity in Amazonia.

  6. Los comportamientos reproductivos de la población mapuche de la provincia de Río Negro

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    Crognier, Emile

    1996-01-01

    Full Text Available Datos retrospectivos sobre la fecundidad de 200 mujeres de origen mapuche de la provincia de Río Negro (Argentina, son analizados con el fin de describir las características de su vida reproductiva. La pubertad relativamente precoz (en promedio la primera menstruación aparece a los 13 años, no es la señal de la entrada a la vida fecunda, ésta se produce en promedio 7 años más tarde. Luego, la natalidad es regular -intervalos de dos a tres años separan los nacimientos sucesivos- hasta su conclusión, que interviene en promedio alrededor de los 38 años, implicando que aún cerca de un 30% de las mujeres conciben después de 43 años. La lactancia materna se practica por un poco más de un año, lo que debe contribuir a aumentar la duración de los intervalos intergenésicos, a pesar de que por otro lado, el uso de contraceptivos parece regular. El ritmo de la vida reproductiva parece ser significativamente más rápido en la ciudad que en el campo e igualmente parece establecerse en esta dirección la evolución entre las generaciones.

  7. Animais medicinais: conhecimento e uso entre as populações ribeirinhas do rio Negro, Amazonas, Brasil

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    Andréa Leme da Silva

    Full Text Available O estudo tem por objetivo documentar o uso de animais na medicina caseira entre ribeirinhos do rio Negro, Amazonas, Brasil. Os dados foram coletados por meio de 92 entrevistas e de observações sobre o conhecimento e as práticas cotidianas de uso de animais medicinais. Cerca de 60 espécies animais são conhecidas com propósitos medicinais. O conhecimento é bem distribuído entre os sexos (homens e mulheres e entre localidades (urbano e rural. O uso de animais medicinais está imerso em conceitos etiológicos e envolve uma complexa visão cosmológica do processo de cura. O êxodo rural e o acesso facilitado à medicina ocidental podem promover a perda dos conhecimentos tradicionais, o que pode ser mitigado através da valorização e da transmissão desses saberes às futuras gerações.

  8. Cultural Community Connection and College Success: An Examination of Southeast Asian American College Students

    Science.gov (United States)

    Museus, Samuel D.; Shiroma, Kiana; Dizon, Jude Paul

    2016-01-01

    Low rates of college success continue to be a persisting problem in the United States, particularly among Southeast Asian Americans and other populations of color. The purpose of the current inquiry was to understand how cultural community connections influence the success of Southeast Asian American college students. Qualitative methods were…

  9. Negros em movimento: etiópia, resistência cultural e afirmação étnica na pós-emancipação / Negros en movimiento: etiopía, resistencia cultural y afirmación étnica después de la emancipación

    Directory of Open Access Journals (Sweden)

    Iris Graciela Germano

    2010-01-01

    Full Text Available Esse estudo parte da Etiópia no imaginário afro-brasileiro pós-emancipação através da análise da imprensa negra e de alguns pensadores negros. Busca-se entender como circulavam idéias de afirmação de identidade étnica que chegaram ao Brasil vindas dos Estados Unidos, Caribe, Europa e África, ou seja, como dialogavam diferentes descendentes de africanos espalhados emvários pontos do Atlântico negro que viveram conjuntamente, embora de formas diferenciadas, a experiência da escravidão, da diáspora e do racismo. O contexto internacional que viu emergir o Pan-Africanismo, o Négritude e a descolonização da África e do Caribe, entrecruza, dialoga e se relaciona com negros em movimento no Brasil, influenciando a construção étnica afro-brasileira em deslocamentos que são de idas e vindas. Mesmo reconhecendo as diversidades e fragmentações presentes na realidade afro-diaspórica entende-se ser possível encontrar laços de solidariedade e trocas transnacionais.Resumen Este estudio parte de Etiopía en el imaginario afrobrasileño, después de la emancipación y a través del análisis de la prensa negra y de algunos pensadores negros. Investiga cómo circulaban las ideas de afirmación de identidad étnica que llegaron a Brasil provenientes de Estados Unidos, Caribe, Europa y África, o sea, cómo dialogaban los diferentes descendientes de africanosdiseminados por los varios puntos del Atlántico negro, que vivieron de diferentes formas, la experiencia de esclavitud, diáspora y racismo. El contexto internacional que vio emerger elPanafricanismo, Négritude y la descolonización de África y Caribe, entrecruza, dialoga y se relaciona con negros en movimiento en Brasil, influenciando la construcción étnica afrobrasileña endesplazamientos que son de idas y vueltas. Aunque se reconozcan las diversidades y fragmentaciones presentes en la realidad afrodiaspórica es posible encontrar lazos de solidaridad e intercambios

  10. The Electoral College: A Teaching/Learning Design.

    Science.gov (United States)

    Hamilton, Angela Blackston

    This teacher's guide describes a course unit on the electoral college designed to teach eighth grade students about the election process for the President of the United States. The historical significance of the electoral college, its procedures, and its relevance to today's political system are discussed. Ten lesson plans with student objectives,…

  11. Black women’s ‘two-ness’ in african-american literature: can black and white worlds join together? = A dualidade de mulheres negras na literatura afro-americana: os mundos negro e branco podem se unir?

    Directory of Open Access Journals (Sweden)

    José Endoença Martins

    2010-01-01

    Full Text Available The article discusses how black women keep contacts with both black and white worlds in novels written by African-American female writers. In Toni Morrison’s (1970 The Bluest Eye, Pecola Breedlove keeps contact with the white world through her assimilationist behavior; in Alice Walker’s (1982 The Color Purple, Celie freezes herself in the black world by playing the role of the nationalist Negro; finally, in Lorraine Hansberry’s (1987 A Raisin in the Sun, Mama Younger joins black and white worlds together when she develops a catalyst agenda, as she moves to a white neighborhood.O artigo discute como mulheres negras mantêm contato com os mundos negro e branco em romances de escritoras afroamericanas. Em O Olho Mais Azul, de Toni Morrison (1970, Pecola Breedlove se alia ao mundo branco pelo comportamento assimilacionista; em A Cor Púrpura, de Alice Walker (1982, Celie se isola no mundo negro ao assumir o papel do Negro nacionalista; por fim, em Uma Cereja ao Sol, de Lorraine Hansberry (1987, Mama Younger aproxima o mundo negro e branco quando se torna catalista, indo morar num bairro branco.

  12. Instrumental and Expressive Education: College Planning in the Face of Poverty

    Science.gov (United States)

    Deterding, Nicole M.

    2015-01-01

    Nearly all young people in the United States aspire to a college degree, but many fail to complete college in a timely manner. Does this lack of attainment reflect abandoned college plans? I analyze mixed-methods data from a five-year study of 700 low-income mothers at two Louisiana community colleges. Hurricane Katrina displaced respondents and…

  13. College mechanics

    CERN Document Server

    Şengül, Caner

    2016-01-01

    College Mechanics QueBank has been designed to be different, enthusiastic, interesting and helpful to you. Therefore, it is not just a test bank about mechanics but also it is like a compass in order to find your way in mechanics Each chapter in this book is put in an order to follow a hierarchy of the mechanics topics; from vectors to simple harmonic motion. Throughout the book there are many multiple choice and long answer questions for you to solve. They have been created for YGS, LYS, SAT, IB or other standardized exams in the world because mechanics has no boundaries and so Physics has no country. Learn the main principle of each chapter and explore the daily life applications. Then you can start to solve the questions by planning a problem solving method carefully. Finally, enjoy solving the questions and discover the meachanics of the universe once more.

  14. Vigilancia epidemiológica de enfermedades transmitidas por alimentos en la provincia de Río Negro, Argentina, 1993-2001 Surveillance of foodborne diseases in the Province of Rio Negro, Argentina, 1993 - 2001

    Directory of Open Access Journals (Sweden)

    Silvana Di Pietro

    2004-04-01

    Full Text Available Se describen 39 brotes de enfermedades transmitidas por alimentos que afectaron a 958 personas en la provincia de Río Negro, Argentina, en el período 1993- 2001. Se identifican los agentes causales, los alimentos involucrados, los sitios de ocurrencia, los factores de riesgo involucrados y los mecanismos de notificación empleados. Salmonella spp (38%, Trichinella spiralis (15%, Escherichia coli (13% y Staphylococcus aureus (15% resultaron los agentes más frecuentes en los brotes. Salmonella spp. también produjo el mayor número de casos (52%. Los principales alimentos involucrados resultaron cárneos (36%, quesos (10%, fiambres y sándwiches (10%, postres (10% y helados (8%. El mayor número de casos, por su parte, fue causado por la ingestión de helados (37%. Con relación al origen de los alimentos, 41% de los brotes fueron causados por comidas elaboradas en los domicilios, 23% en establecimientos comerciales, 13% en fiestas familiares, 8% en fiestas comunitarias y 8% en restaurantes de hoteles. En el 28% de los brotes fue identificado el agente etiológico por análisis epidemiológico exclusivamente, en el 64% se logró el aislamiento del agente, mientras que en el 8% de los casos no se logró el diagnóstico definitivo. Se analiza el valor de la encuesta epidemiológica en los estudios de enfermedades transmitidas por alimentos, la necesidad de fortalecer el sistema de notificación médica de casos y brotes y la importancia de las buenas prácticas en la manipulación de alimentos.A total of 39 outbreaks of foodborne diseases affecting 958 people in the province of Rio Negro, Argentina between 1993 and 2001 are described and evaluated. The main causal agents were identified involving food, sites of occurrence, risk factors and notification system used. Salmonella spp (38%, Trichinella spiralis (15%, Escherichia coli (13% and Staphylococcus aureus (15% were the most frequent agents present in outbreaks. Salmonella spp produced the

  15. Depressive Symptomatology and College Persistence among African American College Students.

    Science.gov (United States)

    Boyraz, Güler; Horne, Sharon G; Owens, Archandria C; Armstrong, Aisha P

    2016-01-01

    The purpose of this study was to examine the relationship between depressive symptomatology and college outcomes among African American students, as well as to determine whether these relationships were moderated by gender and type of university. Participants included 569 African American first-year students attending two public universities in the Southeast United States: a historically Black college/university (HBCU) and a predominantly White institution (PWI). Using a longitudinal study design, data were collected at three time points. Results indicated that, after adjusting for the effects of the control variables (gender, type of institution, high school GPA, participation in on-campus activities, institutional and goal commitments), depressive symptomatology present in the first semester of college was associated with increased likelihood of dropping out of college before the end of the second year of college. The relationship between these two variables was mediated by first-year cumulative GPA. Results also indicated that the hypothesized relationships did not vary as a function of gender and the university type.

  16. Models and impact of patient and public involvement in studies carried out by the Medical Research Council Clinical Trials Unit at University College London: findings from ten case studies.

    Science.gov (United States)

    South, Annabelle; Hanley, Bec; Gafos, Mitzy; Cromarty, Ben; Stephens, Richard; Sturgeon, Kate; Scott, Karen; Cragg, William J; Tweed, Conor D; Teera, Jacqueline; Vale, Claire L

    2016-07-29

    Patient and public involvement (PPI) in studies carried out by the UK Medical Research Council Clinical Trials Unit (MRC CTU) at University College London varies by research type and setting. We developed a series of case studies of PPI to document and share good practice. We used purposive sampling to identify studies representing the scope of research at the MRC CTU and different approaches to PPI. We carried out semi-structured interviews with staff and patient representatives. Interview notes were analysed descriptively to categorise the main aims and motivations for involvement; activities undertaken; their impact on the studies and lessons learned. We conducted 19 interviews about ten case studies, comprising one systematic review, one observational study and 8 randomised controlled trials in HIV and cancer. Studies were either open or completed, with start dates between 2003 and 2011. Interviews took place between March and November 2014 and were updated in summer 2015 where there had been significant developments in the study (i.e. if the study had presented results subsequent to the interview taking place). A wide range of PPI models, including representation on trial committees or management groups, community engagement, one-off task-focused activities, patient research partners and participant involvement had been used. Overall, interviewees felt that PPI had a positive impact, leading to improvements, for example in the research question; study design; communication with potential participants; study recruitment; confidence to carry out or complete a study; interpretation and communication of results; and influence on future research. A range of models of PPI can benefit clinical studies. Researchers should consider different approaches to PPI, based on the desired impact and the people they want to involve. Use of multiple models may increase the potential impacts of PPI in clinical research.

  17. An ethnobotanical study of anti-malarial plants among indigenous people on the upper Negro River in the Brazilian Amazon.

    Science.gov (United States)

    Frausin, Gina; Hidalgo, Ari de Freitas; Lima, Renata Braga Souza; Kinupp, Valdely Ferreira; Ming, Lin Chau; Pohlit, Adrian Martin; Milliken, William

    2015-11-04

    In this article we present the plants used for the treatment of malaria and associated symptoms in Santa Isabel do Rio Negro in the Brazilian Amazon. The region has important biological and cultural diversities including more than twenty indigenous ethnic groups and a strong history in traditional medicine. The aims of this study are to survey information in the Baniwa, Baré, Desana, Piratapuia, Tariana, Tukano, Tuyuca and Yanomami ethnic communities and among caboclos (mixed-ethnicity) on (a) plant species used for the treatment of malaria and associated symptoms, (b) dosage forms and (c) distribution of these anti-malarial plants in the Amazon. Information was obtained through classical ethnobotanical and ethnopharmacological methods from interviews with 146 informants in Santa Isabel municipality on the upper Negro River, Brazil. Fifty-five mainly native neotropical plant species from 34 families were in use. The detailed uses of these plants were documented. The result was 187 records (64.5%) of plants for the specific treatment of malaria, 51 records (17.6%) of plants used in the treatment of liver problems and 29 records (10.0%) of plants used in the control of fevers associated with malaria. Other uses described were blood fortification ('dar sangue'), headache and prophylaxis. Most of the therapeutic preparations were decoctions and infusions based on stem bark, root bark and leaves. These were administered by mouth. In some cases, remedies were prepared with up to three different plant species. Also, plants were used together with other ingredients such as insects, mammals, gunpowder and milk. This is the first study on the anti-malarial plants from this region of the Amazon. Aspidosperma spp. and Ampelozizyphus amazonicus Ducke were the most cited species in the communities surveyed. These species have experimental proof supporting their anti-malarial efficacy. The dosage of the therapeutic preparations depends on the kind of plant, quantity of plant

  18. Incidence Factors of Negative Environmental Behavior towards the Swamps of Bañó and Los Negros

    Directory of Open Access Journals (Sweden)

    Jorge Villadiego-Lorduy

    2015-09-01

    Full Text Available The purpose of this article is to determine the factors that are influencing the environmentally negative behavior of the inhabitants of Bañó and Los Negros towards these wetlands. For this, a questionnaire was designed, validated by a panel of experts, and implemented. Based on a population of 645 households, we used two types of sample designs –systematic and random– to implement the research instrument. In addition to their respective statistical analysis, a content analysis was carried out with the secondary information collected using index cards. Factors such as low education, scarce employment opportunities, and low income per household have a direct impact on the deterioration of these wetlands. Almost 50% of the population living in the wetlands has not completed basic education. Thus, the possibilities to reflect on the actions done by people against the water mirrors are poor, especially when family incomes are very low (53% of the families receive incomes of less than COL$ 10,000 a day. The scarce organization of the communities has prejudiced the development of joint activities between the neighboring communities of the wetlands, as well as the achievement of common goals. Furthermore, the ineffectiveness of local and national environmental authorities has contributed to the degradation of ecosystems due to an inefficient environmental management over the years. Wetlands are the main source of natural resources for these people and the permanence of such communities in the territory is directly related to the wetlands’ conservation. The synergy of the above factors has unleashed environmental problems that have resulted in the reduction of the ecological capacity of these wetlands and the deterioration of environmental conditions in the area of study.

  19. MANGROVE FOREST COVER EXTRACTION OF THE COASTAL AREAS OF NEGROS OCCIDENTAL, WESTERN VISAYAS, PHILIPPINES USING LIDAR DATA

    Directory of Open Access Journals (Sweden)

    A. V. Pada

    2016-06-01

    Full Text Available Mangroves have a lot of economic and ecological advantages which include coastal protection, habitat for wildlife, fisheries and forestry products. Determination of the extent of mangrove patches in the coastal areas of the Philippines is therefore important especially in resource conservation, protection and management. This starts with a well-defined and accurate map. LiDARwas used in the mangrove extraction in the different coastal areas of Negros Occidental in Western Visayas, Philippines. Total coastal study area is 1,082.55 km² for the 14 municipalities/ cities processed. Derivatives that were used in the extraction include, DSM, DTM, Hillshade, Intensity, Number of Returns and PCA. The RGB bands of the Orthographic photographs taken at the same time with the LiDAR data were also used as one of the layers during the processing. NDVI, GRVI and Hillshade using Canny Edge Layer were derived as well to produce an enhanced segmentation. Training and Validation points were collected through field validation and visual inspection using Stratified Random Sampling. The points were then used to feed the Support Vector Machine (SVM based on tall structures. Only four classes were used, namely, Built-up, Mangroves, Other Trees and Sugarcane. Buffering and contextual editing were incorporated to reclassify the extracted mangroves. Overall accuracy assessment is at 98.73% (KIA of 98.24% while overall accuracy assessment for Mangroves only is at 98.00%. Using this workflow, mangroves can already be extracted in a large-scale level with acceptable overall accuracy assessments.

  20. Patterns of microbial diversity along a salinity gradient in the Guerrero Negro solar saltern, Baja CA Sur, Mexico

    Directory of Open Access Journals (Sweden)

    Jesse G Dillon

    2013-12-01

    Full Text Available The goal of this study was to use environmental sequencing of 16S rRNA and bop genes to compare the diversity of planktonic bacteria and archaea across ponds with increasing salinity in the Exportadora de Sal (ESSA evaporative saltern in Guerrero Negro, Baja CA S., Mexico. We hypothesized that diverse communities of heterotrophic bacteria and archaea would be found in the ESSA ponds, but that bacterial diversity would decrease relative to archaea at the highest salinities. Archaeal 16S rRNA diversity was higher in Ponds 11 and 12 (370 & 380 g l-1 total salts respectively compared to Pond 9 (180 g l-1 total salts. Both Pond 11 and 12 communities had high representation (47 and 45% of clones respectively by Haloquadratum walsbyi-like (99% similarity lineages. The archaeal community in Pond 9 was dominated (79% by a single uncultured phylotype with 99% similarity to sequences recovered from the Sfax saltern in Tunisia. This pattern was mirrored in bop gene diversity with greater numbers of highly supported phylotypes including many Haloquadratum-like sequences from the two highest salinity ponds. In Pond 9, most bop sequences, were not closely related to sequences in databases. Bacterial 16S rRNA diversity was higher than archaeal in both Pond 9 and Pond 12 samples, but not Pond 11, where a non-Salinibacter lineage within the Bacteroidetes >98% similar to environmental clones recovered from Lake Tuz in Turkey and a saltern in Chula Vista, CA was most abundant (69% of community. This OTU was also the most abundant in Pond 12, but only represented 14% of clones in the more diverse pond. The most abundant OTU in Pond 9 (33% of community was 99% similar to an uncultured gammaproteobacterial clone from the Salton Sea. Results suggest that the communities of saltern bacteria and archaea vary even in ponds with similar salinity and further investigation into the ecology of diverse, uncultured halophile communities is warranted.

  1. Hot and Steamy Fractures in the Philippines: The Geological Characterization and Permeability Evaluation of Fractures in the Southern Negros Geothermal Field, Philippines

    Science.gov (United States)

    Pastoriza, L. R.; Holdsworth, R.; McCaffrey, K. J. W.; Dempsey, E. D.; Walker, R. J.; Gluyas, J.; Reyes, J. K.

    2016-12-01

    Fluid flow pathway characterization is critical to geothermal exploration and exploitation. It requires a good understanding of the structural evolution, fault distribution and fluid flow properties. A dominantly fieldwork-based approach has been used to evaluate the potential fracture permeability characteristics of a typical high-temperature geothermal reservoir in the Southern Negros Geothermal Field, Philippines. This is a liquid-dominated geothermal resource hosted in the andesitic to dacitic Quaternary Cuernos de Negros Volcano in Negros Island. Fieldwork reveals two main fracture groups based on fault rock characteristics, alteration type, relative age of deformation, and associated thermal manifestation, with the younger fractures mainly related to the development of the modern geothermal system. Palaeostress analyses of cross-cutting fault and fracture arrays reveal a progressive counterclockwise rotation of stress axes from the (?)Pliocene up to the present-day, which is consistent with the regional tectonic models. A combined slip and dilation tendency analysis of the mapped faults indicates that NW-SE structures should be particularly promising drilling targets. Frequency versus length and aperture plots of fractures across six to eight orders of magnitude show power-law relationships with a change in scaling exponent in the region of 100 to 500m length-scales. Finally, evaluation of the topology of the fracture branches shows the dominance of Y-nodes that are mostly doubly connected suggesting good connectivity and permeability within the fracture networks. The results obtained in this study illustrate the value of methods that can be globally applied during exploration to better characterize fracture systems in geothermal reservoirs using multiscale datasets.

  2. College Student Migration.

    Science.gov (United States)

    Fenske, Robert H.; And Others

    This study examines the background characteristics of two large national samples of first-time enrolled freshmen who (a) attended college within their state of residence but away from their home community, (b) migrated to a college in an adjacent state, (c) migrated to a college in a distant state, and (d) attended college in their home community.…

  3. College Student Suicide

    Science.gov (United States)

    Taub, Deborah J.; Thompson, Jalonda

    2013-01-01

    Suicide is the second-leading cause of death among college students, and it is estimated that 1,088 college students die by suicide each year (National Mental Health Association and the Jed Foundation, 2002). This chapter presents the context of college student mental health within which the problem of college student suicide is situated. Because…

  4. Surviving Math, Surviving College

    Science.gov (United States)

    Schaffhauser, Dian

    2009-01-01

    According to a 2000 community college study by Miami Dade College (FL) President Emeritus Robert McCabe, 41 percent of students entering community colleges are underprepared in at least one basic skill area. A three-year study of community college students, published in 2009 by the National Center for Education Statistics, reported that 41 percent…

  5. Por um lugar no império: inglesidade, pertencimento negro e memória nacional em dois contos de Andrea Levy

    OpenAIRE

    Silva, Denise Almeida

    2017-01-01

    Resumo: Este trabalho objetiva examinar a interrogação da inglesidade (Englishness) pela ficcionista britânica negra Andrea Levy a partir do lugar ocupado por ela como cidadã britânica, descendente de imigrantes caribenhos negros. O questionamento é situado no quadro da construção identitária que segue ao contato dos ingleses com seus outros, especialmente no contexto da geração Windrush. Entrevistas e, sobretudo, o ensaio “Back to my own country” ajudam a dimensionar a influência da prática ...

  6. Por um lugar no império: inglesidade, pertencimento negro e memória nacional em dois contos de Andrea Levy

    OpenAIRE

    Denise Almeida Silva

    2017-01-01

    http://dx.doi.org/10.5007/2175-8026.2017v70n1p17 Este trabalho objetiva examinar a interrogação da inglesidade (Englishness) pela  ficcionista britânica negra Andrea Levy a partir do lugar ocupado por ela como cidadã britânica, descendente de migrantes caribenhos negros.  O questionamento é situado no quadro da construção identitária que segue ao contato dos ingleses com seus outros, especialmente no contexto da geração Windrush. Entrevistas e, sobretudo, o ensaio “Back to my own country”...

  7. El ciclo inmobiliario: La experiencia argentina y el caso de las provincias de Neuquén y Río Negro

    Directory of Open Access Journals (Sweden)

    Ernesto Bilder

    1997-12-01

    Full Text Available Abstract This work presents data examining the effect that the economic cycles have on the building industry. The article has three sections: The first looks into the relationship between the real estate market fluctuations and the stock market. The second examines the building industry in Argentina as influenced by the plan de convertibilidad, with its 1994-1995 economic recession. The third analyzes she housing conditions in the southern provinces of Neuquen and Rio Negro and their effects on the quality of life

  8. Agujeros negros cosmológicos y su relación con la segunda ley de la termodinámica

    OpenAIRE

    López Amengol, Federico Gastón

    2015-01-01

    A partir de enunciados de leyes invariantes ante inversión y traslación temporal, resultan procesos macroscópicos irreversibles. La fuente de irreversibilidad no se encuentra en las leyes mismas sino en las condiciones de borde o iniciales que exigimos a las ecuaciones que representan las leyes. En este trabajo, proponemos que el apantallamiento de corrientes electromagnéticas por el horizonte de eventos de un agujero negro en las soluciones a las ecuaciones de Maxwell determina, localmente...

  9. Os perigos dos Negros Brancos: cultura mulata, classe e beleza eugênica no pós-emancipação (EUA, 1900-1920)

    OpenAIRE

    Nascimento, Giovana Xavier da Conceição

    2015-01-01

    Por meio da articulação entre história social da cultura e do trabalho, o artigo discute o processo de fortalecimento da "cultura mulata" promovido por intelectuais afro-americanos das classes alta e média no período pós-emancipação. Ao analisar o "problema da liberdade" com base nos referenciais de beleza construídos por esses "novos negros", trago à cena textos e fotografias coletados das revistas The Half Century Magazine, de Boston, e The Crisis: a record of the darker races, de Nova York...

  10. Asimetrías dentarias en una serie craneana de Río Negro según rasgos métricos

    OpenAIRE

    Bollini, Gabriel A.; Atencio, Juan P.; Colantonio, Sonia Edith; Mendez, Marta Graciela

    2009-01-01

    Se realiza una caracterización de rasgos odontométricos para una muestra de 38 cráneos provenientes de la provincia de Río Negro. La muestra se halla conformada por individuos de ambos sexos, todos adultos-maduros con dentición permanente. Se estudió la ocurrencia de asimetrías dentarias, dimorfismo sexual, y diferencias en los módulos molares. La comparación de piezas antiméricas mediante test de T apareadas no arrojo diferencias significativas; sin embargo sí se observaron al confrontar los...

  11. Falcão Negro em Perigo: a versão imperial do conflito Somali

    Directory of Open Access Journals (Sweden)

    Fabio Gabriel Nigra

    2009-12-01

    Full Text Available The article analyzes Hollywoodís outlook about the complex situation in Somalia, particularly on the intervention of the US together with the peace missions sent by the United Nations Organization in the movie Black Hawk Down. The remark is put on the astonishing simplification of a group of problems that, regarding their complexity, should be taken in a more thorough and respectful way. There is an intention to awkwardly tergiversate an international action between the US and the UN, characterized by the arrogance, the contempt towards differences and the unawareness of the basic political and cultural elements of the land where they were on. Likewise, it is confronted with a documentary produced by The History Channel, where the lie is drawn as a practical operation of the American foreign policy in Bill Clintonís years. When contrasted with the UN and the acting NGO's official records, it is shown that the intention of the movie is to make appear the American imperialist action as a humanitarian maneuver/act.

  12. Significados latentes na fotografia em turismo: o caso do turismo negro na Costa Morte (Galiza

    Directory of Open Access Journals (Sweden)

    Antonio Azevedo

    2017-01-01

    Full Text Available To what extent can a photograph be a representation of the identity of a place, spread emotions, simulate / emulate experiences and motivate the visit to the destination? This study seeks to explore the fascination (gaze, the influence of landscape interpretation, the perception of authenticity, the psychological density associated with images of black tourism? What elements and symbols are possible in an explicit or latent way? What is the role of the tourist in the co ‑ creation of the image of destiny? This study has as its starting point and unit of analysis the intangible heritage and the “aura” emanated by various places and landscapes of the Costa da Morte (Coast of Death in Galicia spiced by the legends and mythology of a rich in events historical past. Using a methodological approach that included qualitative selection and analysis of photographs, documentaries and books, direct observation, passive netnography and photo elicitation several latent content elements or classification categories were proposed.

  13. Personal Qualities and College Admissions.

    Science.gov (United States)

    Willingham, Warren W.; Breland, Hunter M.

    The extent to which personal and academic factors are important in college admission decisions was studied in 1978, based on data on 25,000 applicants to 9 colleges (Colgate University, Williams College, Ohio Wesleyan University, Kenyon College, Kalamazoo College, Occidental College, Hartwick College, University of Richmond, and Bucknell…

  14. Por um lugar no império: inglesidade, pertencimento negro e memória nacional em dois contos de Andrea Levy

    Directory of Open Access Journals (Sweden)

    Denise Almeida Silva

    2017-01-01

    Full Text Available http://dx.doi.org/10.5007/2175-8026.2017v70n1p17 Este trabalho objetiva examinar a interrogação da inglesidade (Englishness pela  ficcionista britânica negra Andrea Levy a partir do lugar ocupado por ela como cidadã britânica, descendente de migrantes caribenhos negros.  O questionamento é situado no quadro da construção identitária que segue ao contato dos ingleses com seus outros, especialmente no contexto da geração Windrush. Entrevistas e, sobretudo, o ensaio “Back to my own country” ajudam a dimensionar a influência da prática e pensamento racista tanto nas relações sociais e culturais quanto na invisibilização da escravidão negra na história oficial da Inglaterra. Considera-se a escrita como a forma escolhida por Levy para posicionar-se frente a essa omissão histórica, e  analisam-se, como forma de exemplificar tal práxis ficcional,  dois contos que visibilizam as relações entre os coloniais negros e a população hegemônica inglesa, “The polite way that English people have” e “The empty pram”.

  15. El Frente Negro y el Movimiento Alemania Libre en la Argentina durante las décadas de 1930 y 1940

    Directory of Open Access Journals (Sweden)

    Germán Friedmann

    Full Text Available Este artículo analiza la constitución, la organización y las acciones emprendidas por el Schwarze Front (Frente Negro y del Frei-Deutschland Bewegung (Movimiento Alemania Libre en la Argentina durante las décadas de 1930 y 1940. Lideradas desde el exilio por Otto Strasser, ambas agrupaciones se opusieron al Tercer Reich. Strasser, uno de los principales organizadores del partido nacionalsocialista alemán debió abandonar su país en 1933 debido a un fuerte enfrentamiento con Hitler, al que acusaba de traicionar los ideales del nacionalsocialismo. El trabajo se centra en las redes establecidas entre los integrantes del Frente Negro y el Movimiento Alemania Libre con otros países de América; en el papel que tuvieron en las denuncias de la "infiltración nazi" en el Cono Sur, y en las relaciones que entablaron con los germanoparlantes antinazis de la Argentina.

  16. Redes sociales y territorialidad bolichera de sirios y libaneses en el sudeste de Río Negro, Argentina (1900-1950

    Directory of Open Access Journals (Sweden)

    Matías Rodrigo Chávez

    2016-01-01

    Full Text Available En este artículo proponemos un análisis sobre las relaciones establecidas por los inmigrantes sirios y libaneses en el sudeste del Territorio Nacional de Río Negro en las primeras décadas del siglo XX. El uso de la metodología de Análisis de Redes Sociales (ARS nos permitió discutir las caracterizaciones estereotipadas de estos sujetos históricos para reinstalar su complejidad y la multiplicidad de estrategias, individuales y colectivas, con el propósito de avanzar en la reconstrucción de una cartografía que habilite la representación gráfica de las redes de familiarización/ alianza. Espacialmente, nos circunscribimos al sudeste de Río Negro, y dentro de este territorio prestamos una mayor atención a la localidad de Valcheta y sus zonas de influencia para determinar la posición y la movilidad de los actores a partir del estudio de una amplia variedad de fuentes producidas mayormente por el estado.

  17. Movimento negro, ação política e as transformações sociais no Brasil contemporâneo

    Directory of Open Access Journals (Sweden)

    Joana Célia dos Passos

    2014-12-01

    Full Text Available http://dx.doi.org/10.5007/2175-7984.2014v13n28p105 O presente artigo aborda as relações raciais no Brasil, seus conflitos e as transformações sociais protagonizadas pelos movimentos negros, com abordagens e análises numa perspectiva histórica e sociológica de longa duração. Neste buscamos compreender e refletir as lutas e reinvindicações dos movimentos sociais negros a partir das estruturas impostas pelos sistemas de poder que, mediante as crises e os avanços cíclicos no sistema capitalista, pouco ou nada alteram a força estruturante do racismo na sociedade brasileira. Destacam-se também as reações e manifestações racistas frente à implementação das políticas de promoção da igualdade racial no século XXI, que, em regra, advogam a manutenção do status quo nos espaços de poder.

  18. Sociodrama e política de cotas para negros: um método de intervenção psicológica em temas sociais

    Directory of Open Access Journals (Sweden)

    Maria da Penha Nery

    Full Text Available O artigo propõe o sociodrama como método sociátrico para a atuação do psicólogo frente a temas polêmicos, dentre eles, a política de cotas para negros nas universidades. Inicia-se com uma reflexão sobre algumas produções científico-culturais que instrumentam cientistas sociais para a transformação social. Partindo do pressuposto que a mudança social, promovida por métodos culturais e psicoterapêuticos, tem, em sua base, o fenômeno da catarse, o texto aborda a evolução desse conceito: dos rituais, passa-se pelo teatro grego, pela Psicanálise, até o sociodrama, que cria a noção de catarse de integração. Exemplifica-se com um sociodrama do sistema de cotas para negros na Universidade de Brasília, realizado com estudantes de Psicologia. O evento mobilizou a criação conjunta favorecedora do processo de inclusão social e desvelou o papel político do psicólogo na sociedade.

  19. Demografía genética de la población mapuche de Villa Obrera, General Roca, provincia de Río Negro

    Directory of Open Access Journals (Sweden)

    Caratini, Alicia Liliana

    1996-01-01

    Full Text Available A partir de la realización de un censo demográfico de aborígenes mapuche que migraron a Villa Obrera, General Roca, Provincia de Río Negro, se determinaron diversos parámetros de interés genético. La población estudiada puede ser caracterizada como un grupo joven, con elevada fertilidad y moderada mortalidad. La exogamia fue alta y predominó el flujo génico en la dirección hombre mestizo por mujer indígena (75%. El índice de oportunidad para la acción de la selección natural fue relativamente bajo (0.46. El tamaño efectivo (Ne de la población, también fue bajo (57, pero, el índice de aislamiento reproductivo (45 no es muy pronunciado debido a la elevada tasa de inmigración (m=0.78. Cuando comparamos estos resultados respecto de una población mapuche semiaislada de la localidad de Blancura Centro, Provincia de Río Negro, constatamos similitudes y también diferencias en relación con algunos de los parámetros demográficogenéticos analizados.

  20. Organizational learning in a college of nursing: A learning history.

    Science.gov (United States)

    Lyman, Bret; Cowan, Lisa A; Hoyt, Hannah C

    2018-02-01

    College of nursing leaders can foster organizational learning as a means of achieving their desired organizational outcomes. Organizational learning has not previously been studied in colleges of nursing, leaving college administrators and faculty little guidance as they strive to improve outcomes in their own colleges. The purpose of this study was to discover new insights related to organizational learning in a college of nursing. The learning history method was used to document and describe organizational learning in a college of nursing. This study was conducted with a college of nursing situated in a private, religious-based university in the western United States. Six stakeholders and 16 individuals familiar with the college's history were purposively recruited for this study. Participants included college administrators, faculty, students, alumni, and individuals with university-level responsibilities related to the college. Semi-structured interviews and college artifacts were used to gather data. Data was reviewed and themes identified through a process called "distillation." The college's vision, "Learning the Healer's Art" provides purpose and motivation within the college. Four themes provide additional insight into how the college established a learning culture and fosters behavior conducive to organizational learning: (1) Character and Quality, (2) Long-Term Perspective, (3) Collaborative Leadership and Adaptation, and (4) Mentoring. College of nursing leaders can foster organizational learning and pursue improvement within their colleges. Recommended actions include developing a shared vision for the college, building a cadre of qualified faculty and students who have strong personal character, maintaining a long-term perspective, using a collaborative approach to leadership and adaptation, and facilitating mentoring. Copyright © 2017 Elsevier Ltd. All rights reserved.

  1. College Learning Anytime, Anywhere. New Ways for Anyone to Get College Credits and College Degrees by Off-Campus Study and Examinations.

    Science.gov (United States)

    Nyquist, Ewald B.; And Others

    Nontraditional methods of qualifying for a college degree are described in this student guide to off-campus study and examination. The three external degree institutions in the United States that offer these programs are discussed. They include: Regents External Degree Program of the University of the State of New York; Thomas A. Edison College of…

  2. MACROALGAS E QUALIDADE DA ÁGUA NA BACIA DO ALTO RIO NEGRO - MUNICÍPIO DE SÃO GABRIEL DA CACHOEIRA (AM.

    Directory of Open Access Journals (Sweden)

    Domitila Pascoaloto

    2011-01-01

    Full Text Available Foram investigadas as comunidades de macroalgas do rio Negro, no município de São Gabriel da Cachoeira. Em setembro/2007 foram visitados cinco sítios amostrais, próximos à sede da cidade; em Março/2008 foram investigados oito sítios amostrais, entre a comunidade Amium (hemisfério norte e a sede da cidade (hemisfério sul; em agosto de 2008 foram investigadas as comunidades de macroalgas e a qualidade da água do rio Negro e onze afluentes, entre os rios Içana (hemisfério norte e Marie, no hemisfério sul; em abril/2009 foram coletadas macroalgas e água no rio Negro e em igarapés de água com tonalidade vermelha, na sede da cidade; em maio/2009 foram feitas coletas de água no rio Negro entre a comunidade de Cucuí, onde o rio Negro entra no Brasil e a sede do município. As águas dos locais apresentaram características típicas de rio de “água preta”: pH ácido ( 6,0 mgO2/L. As entidades ecológicas de macroalgas observadas pertenceram aos gêneros Batrachospermum Roth (Batrachospermaceae, Rhodophyta; Microspora Thuret (Microsporaceae, Chorophyta, Oedogonium Link ex Hirn (Oedogoniaceae, Chorophyta; Oscillatoria Vaucher ex Gomont (Oscillatoriaceae, Cyanophyta; Phormidium Kützing ex Gomont (Phormidiaceae, Cyanophyta; Spirogyra Link (Zygnemaceae, Chlorophyta; Tabellaria Ehrenberge ex Kützing (Fragilariophyceae, Bacillariophyta. Na sede da cidade, a macroalga mais freqüente (50% dos registros foi Spirogyra spp.. Foram encontradas macroalgas com hábitos eplilíticos e efíticos Gametófitos de Batrachospermum spp. foram observados em três sítios amostrais (em troncos ou rochas em setembro/2007, período de águas mais baixas, porém não foram encontradas macroalgas nesses locais em março/2008, quando o rio estava mais cheio. No entanto, em agosto de 2008, quando o rio também estava em período de águas altas, foram observados, em fragmentos rochosos na orla da sede do município, filamentos férteis de Batrachospermum sp

  3. CLEP college mathematics

    CERN Document Server

    Friedman, Mel

    2012-01-01

    Earn College Credit with REA's Test Prep for CLEP* College Mathematics Everything you need to pass the exam and get the college credit you deserve.CLEP* is the most popular credit-by-examination program in the country, accepted by more than 2,900 colleges and universities. For over 15 years, REA has helped students pass the CLEP* exam and earn college credit while reducing their tuition costs. Our test prep for CLEP* College Mathematics and the free online tools that come with it, allow you to create a personalized CLEP* study plan that can be customized to fit you: your schedule, your lea

  4. Mejoramiento genético del frijol rojo y negro mesoamericano para Centroamérica y El Caribe

    Directory of Open Access Journals (Sweden)

    Juan C. Rosas

    2000-01-01

    Full Text Available La producción de frijol en Centroamérica es llevada a cabo mayormente en laderas de suelos marginales, limitada por diversos factores bióticos y abióticos. Más de 350,000 t de este grano se producen en cerca de 0,5 millones de hectáreas, con rendimientos promedios de 678 kg/ha. La mayoría de los productores de frijol utilizan bajos insumos y muy pocas fincas están mecanizadas. El autoconsumo es alto; sin embargo, una alta proporción de este grano es comprado por intermediarios. En Honduras, el frijol es el sétimo cultivo en valor económico y es el de mayor rentabilidad entre el maíz, arroz y sorgo. Las dos clases comerciales más importantes en Centroamérica son el frijol rojo y negro pequeños (raza Mesoamérica. El mejoramiento de estos tipos de frijol se ha enfocado en el desarrollo de resistencia a enfermedades (mosaico común, mosaico dorado, antracnosis, mancha angular, roya, mustia hilachosa y bacteriosis común e insectos (principalmente picudo de la vaina; y tolerancia a baja fertilidad, sequía y calor. Programas adecuados de hibridación, evaluación y selección son usados para el desarrollo de cultivares con resistencia múltiple, alto rendimiento, buena adaptación y aceptación comercial. La ampliación de la base genética se obtiene usando fuentes de germoplasma Andino y Mesoamericano en la etapa de hibridación. La selección simultánea por varios caracteres y pruebas multilocalidades son utilizadas. Los viveros y ensayos de adaptación y rendimiento de líneas avanzadas son distribuídos a países de Centroamérica, México, y El Caribe. Las pruebas y validaciones en fincas y la liberación de variedades, son efectuadas por los programas nacionales de frijol de los países miembros de PROFRIJOL, en colaboración con el Zamorano, CIAT y el Bean/Cowpea CRSP

  5. Interaction of Extreme Halophilic Archaea With the Evaporites of the Solar Salterns Guerrero Negro Baja California, Mexico

    Science.gov (United States)

    Tamez, P.; Lopez-Cortés, A.

    2008-12-01

    Hypersaline environments have been significant reservoirs for the long-term evolution of specifically adapted microorganisms. Characterized to have higher salt concentrations (up to 35 g/L), they are worldwide distributed and have a commercial significance. Exportadora de Sal, Guerrero Negro, Mexico has a multipond salterns system designed to harvest common salt (NaCl) from sea water. To achieve this purpose, sea water is pumped through a set of shallow ponds where water evaporates and salts concentrate. Sequential precipitation of CaCO3, CaSO4 2H2O and NaCl occurs in a mineral formations call it evaporites. In the interior of those gypsum-encrusted and halite-encrusted minerals, communities of extremely salt-loving archaea prosper. Previous studies have showed the influence of Haloarchaeal cells in the formation of larger fluid inclusions than crystals formed in sterile salt solutions. S-layer envelopes and cells of Haloarcula strain SP8807 contributed to the nucleation of new crystals of NaCl. Given the significance of the scope in phylogenetic archaeal diversity research, this study had a polyphasic approach. SEM micrographs from a 21- 31% (w/v) gradient salt multipond system evaporites, gave an insight profile of the extreme halophilic archaeal communities thriving in the surface of the gypsum and halite evaporites. Halite crystals were form after 21 days of incubation in solid medium with archaeal cells. Both culture and non-culture dependent methods, Nested-PCR-DGGE analysis and sequencing of 16S rDNA amplified fragment genes from environmental samples and isolated strains were used for this purpose. We isolate three strains from Pond 9 (21.07% total salt concentration) and one strain from Cristallizer 20 (25.15% total salt concentration). 16S rDNA signaling gave 99% of similarity with Halogeometricum borinquense, sequence AF002984, two other strains were 99% of similarity with Halobacterium salinarum, sequence AJ496185 these strains shown different colony

  6. Vigilancia epidemiológica de la equinococcosis quística en perros, establecimientos ganaderos y poblaciones humanas en la provincia de Río Negro Epidemiological surveillance of cystic echinococcosis in dogs, sheep farms and humans in the Rio Negro Province

    Directory of Open Access Journals (Sweden)

    Alicia Pérez

    2006-06-01

    ó información de la prevalencia individual mientras que la detección de coproantigenos permitió mejorar la calidad de la información identificándose establecimientos donde concentrar acciones de control. El estudio permitió identificar nuevas áreas de transmisión.The surveillance of infection for Echinococcus granulosus in the Province of Rio Negro during 1980-2002 included serological and ultrasonographic screening in humans and arecoline test in dogs. In lieu of the limitations of the arecoline test the proposal was to supplant that test for the copro Elisa-copro/Western Blot complex applied to feces collected from the environment. The objective was to compare the pros and cons of the two tests and to evaluate the human and the canine infection prevalence. The working area encompassed 7 Departments with systematic canine parasiticide activities (Program Area and 4 Departments, not endemic, as Control Area. The arecoline test was applied to the dogs in assembled groups with the voluntary participation of their owners (not randomized sampling. Samples for the detection of coproantigens were obtained from sheep farms selected at random and analyzed by the complex copro-Elisa /Western Blot. Prevalence in man was determined by screening the school population (6 to 14 years old by ultrasound, and by means of the compulsory notification of cases from the official system. Dogs (416 were tested with arecoline, 365 of which belonged to the Program Area. Of these 19 (5.2% resulted positive, while none of 51 dogs from the Control Area were positive. Samples (748 of feces were tested to detect coproantigens, obtaining 37 positive samples within the Program Area and 4 within the Control Area. Farms (271 from the livestock estate unit were evaluated, out of which 236 belonged to the Program Area, gave 32 (13.6% positive results, while 4 (11.4% of 35 from the Control Area resulted positive. Sonography tests (7421 were done in the Program Area detecting 40 (0.5% carriers, while in

  7. Study guide for college algebra and trigonometry

    CERN Document Server

    Snow, James W; Shapiro, Arnold

    1981-01-01

    Study Guide for College Algebra and Trigonometry is a supplement material to the basic text, College Algebra and Trigonometry. It is written to assist the student in learning mathematics effectively.The book provides detailed solutions to exercises found in the text. Students are encouraged to use these solutions to find a way to approach a problem. The Study Guide and Solutions Manual consists of four major components: basic concepts that should be learned from each unit, what was learned upon completion of each unit, solutions to selected problems, and a short chapter quiz, including the ans

  8. American College Health Association

    Science.gov (United States)

    ... a robust series of courses leading to a brand new certification – the College Health and Wellness Professional ( ... future college health and wellness professionals, and strengthen awareness of the profession and association. Each month we' ...

  9. Depression and College Students

    Science.gov (United States)

    ... depression and other mental health issues? Reference Share Depression and College Students Download PDF Download ePub Order ... Answers to college students’ frequently asked questions about depression Feeling moody, sad, or grouchy? Who doesn’t ...

  10. College Information Needs.

    Science.gov (United States)

    Cibik, Margaret A.

    1982-01-01

    A survey of a sampling of college-bound high school seniors in Arizona was undertaken to determine students' information needs for college choice. Items, including institutional, student, and program characteristics, are ranked in order of perceived importance. (MSE)

  11. College Women's Health

    Science.gov (United States)

    ... Health - Learn the facts about HPV, HIV, and birth control. College Women's Social Media Toolkit - Share health tips with your campus community. College Women's Campaign - Find out how your school can join. Sign up for email alerts. Order ...

  12. College Access Marketing

    Science.gov (United States)

    Tremblay, Christopher W.

    2011-01-01

    College Access Marketing (CAM) is a relatively new phenomenon that seeks to positively influence the college-going rate. This report defines CAM, describes CAM examples, and discusses how CAM seeks to counter barriers to college. It explores four main elements of CAM: information, marketing, advocacy, and social mobilization. Further, it…

  13. American Indian Community Colleges.

    Science.gov (United States)

    One Feather, Gerald

    With the emergence of reservation based community colleges (th Navajo Community College and the Dakota Community Colleges), the American Indian people, as decision makers in these institutions, are providing Indians with the technical skills and cultural knowledge necessary for self-determination. Confronted with limited numbers of accredited…

  14. Cash for College.

    Science.gov (United States)

    National Association of Student Financial Aid Administrators, Washington, DC.

    This booklet contains answers to questions that students may ask about financial aid for college. The booklet describes the usual costs of college, and suggests ways students can pay for a college education. The types of financial aid available are described, and the application process is outlined. The booklet offers tips for comparing different…

  15. Early College High Schools

    Science.gov (United States)

    Dessoff, Alan

    2011-01-01

    For at-risk students who stand little chance of going to college, or even finishing high school, a growing number of districts have found a solution: Give them an early start in college while they still are in high school. The early college high school (ECHS) movement that began with funding from the Bill and Melinda Gates Foundation 10 years ago…

  16. Planning for College Success

    Science.gov (United States)

    PEPNet, 2009

    2009-01-01

    "Planning for College Success" (PCS) is a curriculum model designed by Sharon Downs, M.S., for a course intended to assist deaf and hard of hearing students during their initial introduction to college life. This program allows students to work one-on-one with a counselor to plan for their college success. The program includes short-term goals and…

  17. Cyberbullying in College

    OpenAIRE

    Carlos P. Zalaquett; SeriaShia J. Chatters

    2014-01-01

    Cyberbullying is commonly presented as affecting K-12 populations. Current research suggests cyberbullying continues in college. A diverse sample of 613 university students was surveyed to study their cyberbullying experiences in high school and college. Nineteen percent of the sample reported being a victim of cyberbullying in college and 35% of this subsample reported being cyberbullied in high school. Additional fin...

  18. Influencia de la marea astronómica sobre las variaciones del nivel del Río Negro en la zona de Carmen de Patagones

    Directory of Open Access Journals (Sweden)

    Enrique D'Onofrio

    2010-12-01

    Full Text Available El Río Negro, límite natural entre las provincias de Buenos Aires y Río Negro, es uno de los ríos más importantes de la Patagonia que desemboca en el Océano Atlántico. Es navegable desde su desembocadura hasta Carmen de Patagones por embarcaciones de hasta 2,04 m de calado, dificultándose por irregularidades en la profundidad aguas arriba. La onda de marea proveniente del océano Atlántico ingresa al río haciendo que este adopte un régimen semidiurno hasta Carmen de Patagones. El conocimiento de la onda de marea en este tramo del río es de fundamental importancia para la calibración de modelos numéricos, el perfeccionamiento de los sistemas de alerta de inundaciones y la toma de decisiones relacionadas con el manejo costero. En este trabajo se analizan cuatro series de mediciones de marea, dos obtenidas en el hidrómetro de Carmen de Patagones con una duración de 608 y 731 días, una de 77 días proveniente de un mareómetro instalado en el kilómetro 18 del río y una de 79 días obtenida con un sensor de presión fondeado en proximidades de Punta Redonda (desembocadura del Río Negro. Se calculan y comparan los espectros de potencia de las alturas observadas en los tres sitios para detectar los cambios energéticos producidos en la banda de frecuencias correspondientes a la marea astronómica. De su comparación surge que la energía de las componentes semidiurnas y diurnas disminuye un 22% y un 45% respectivamente desde la desembocadura del Río Negro hasta Carmen de Patagones. En contraposición se observa un ligero aumento de la energía correspondiente a las frecuencias de las componentes cuarto diurnas. Esto se debe fundamentalmente a procesos no lineales inducidos por aguas someras y a irregularidades en la morfología del fondo del río. Para obtener las amplitudes y épocas de la marea se realizan análisis armónicos por el método de cuadrados mínimos. Las amplitudes de las componentes diurnas en Carmen de Patagones

  19. Mind the Gap: Political Science Education in Community Colleges

    Science.gov (United States)

    Yanus, Alixandra B.; O'Connor, Karen; Weakley, Jon L.

    2012-01-01

    Community colleges occupy a growing role in the American education system. Their unique cross-section of students poses a challenge for teachers of political science. This paper uses information from a survey completed by over 2,000 students at 20 colleges and universities across the United States to shed light on some of the most significant…

  20. Viewbook Marketing of Women's Colleges

    Science.gov (United States)

    Kamauf, Renée

    2018-01-01

    Over the past several decades, women's colleges have increasingly become coeducational or have closed completely due to declining enrollment. With just 37 women's colleges remaining in the United States as of Fall 2016, the researcher explored how these institutions marketed to prospective students using viewbooks. This qualitative dissertation…

  1. Reasons for Synthetic THC Use among College Students

    Science.gov (United States)

    Vidourek, Rebecca A.; King, Keith A.; Burbage, Michelle L.

    2013-01-01

    Synthetic THC, also known as fake marijuana, is used by college students in the United States. The present study examined reasons for recent synthetic THC use among college students (N = 339). Students completed a 3-page survey during regularly scheduled class times. Results indicated students reported using synthetic THC for curiosity, to get…

  2. Sexual Orientation Differences in HIV Testing Motivation among College Men

    Science.gov (United States)

    Kort, Daniel N.; Samsa, Gregory P.; McKellar, Mehri S.

    2017-01-01

    Objective: To investigate sexual orientation differences in college men's motivations for HIV testing. Participants: 665 male college students in the Southeastern United States from 2006 to 2014. Methods: Students completed a survey on HIV risk factors and testing motivations. Logistic regressions were conducted to determine the differences…

  3. The Others: Equitable Access, International Students, and the Community College

    Science.gov (United States)

    Viggiano, Tiffany; López Damián, Ariadna I.; Morales Vázquez, Evelyn; Levin, John S.

    2018-01-01

    This qualitative investigation explains the ways in which community college decision makers justify the inclusion of international students at three community colleges in the United States. We identify and explain the ways in which decision makers rationalize institutional policy--particularly recruitment strategies and motivations--related to…

  4. Listening and Reading Proficiency Levels of College Students

    Science.gov (United States)

    Tschirner, Erwin

    2016-01-01

    This article examines listening and reading proficiency levels of U.S. college foreign language students at major milestones throughout their undergraduate career. Data were collected from more than 3,000 participants studying seven languages at 21 universities and colleges across the United States. The results show that while listening…

  5. Applying Cultura in the Community College Counseling Practice

    Science.gov (United States)

    Arteaga, Blanca E.

    2015-01-01

    Latino students represent the fastest-growing population in the state of California, the United States, and the California Community College (CCC) system. Unfortunately, compared to other ethnic groups, Latino community college students continue to lag academically. Given the importance of counseling services and the scarce research related to…

  6. Efficiency in the Community College Sector: Stochastic Frontier Analysis

    Science.gov (United States)

    Agasisti, Tommaso; Belfield, Clive

    2017-01-01

    This paper estimates technical efficiency scores across the community college sector in the United States. Using stochastic frontier analysis and data from the Integrated Postsecondary Education Data System for 2003-2010, we estimate efficiency scores for 950 community colleges and perform a series of sensitivity tests to check for robustness. We…

  7. Lived Experiences of Low Socioeconomic Millennial Generation College Students

    Science.gov (United States)

    Thacker, Kelly L.

    2012-01-01

    The characteristics and needs of college students across the United States are ever-changing. As Millennial generation students, born between 1982 and 2003 (Howe & Strauss, 2000), attend college, unique characteristics are present. Commonalities within the Millennial generation have been identified; however, socioeconomic status can impact a…

  8. Dieting Behaviors of Young Women Post-College Graduation

    Science.gov (United States)

    Soliah, LuAnn; Walter, Janelle; Antosh, Deeanna

    2007-01-01

    Obesity is a major public health epidemic in the United States. During the past decade, obesity has increased across all education levels, including college graduates. The purpose of this research was to study the health decisions that young women, post-college graduation make regarding their food intake. The subjects in this study completed a…

  9. An Organizational Model for Instructional Support at a Community College.

    Science.gov (United States)

    Mundell, Jacqueline; Celene-Martel, Coryl; Braziunas, Tom

    2003-01-01

    Describes the Instructional and Information Support Services (IISS) division at North Seattle Community College, which brings together the college's library, media services, and distance learning units as well as the Teaching and Learning center to support instruction campus-wide. Discusses the campus technological infrastructure, online courses,…

  10. High-resolution mapping reveals linkage between genes in common bean cultivar Ouro Negro conferring resistance to the rust, anthracnose, and angular leaf spot diseases.

    Science.gov (United States)

    Valentini, Giseli; Gonçalves-Vidigal, Maria Celeste; Hurtado-Gonzales, Oscar P; de Lima Castro, Sandra Aparecida; Cregan, Perry B; Song, Qijian; Pastor-Corrales, Marcial A

    2017-08-01

    Co-segregation analysis and high-throughput genotyping using SNP, SSR, and KASP markers demonstrated genetic linkage between Ur-14 and Co-3 4 /Phg-3 loci conferring resistance to the rust, anthracnose and angular leaf spot diseases of common bean. Rust, anthracnose, and angular leaf spot are major diseases of common bean in the Americas and Africa. The cultivar Ouro Negro has the Ur-14 gene that confers broad spectrum resistance to rust and the gene cluster Co-3 4 /Phg-3 containing two tightly linked genes conferring resistance to anthracnose and angular leaf spot, respectively. We used co-segregation analysis and high-throughput genotyping of 179 F 2:3 families from the Rudá (susceptible) × Ouro Negro (resistant) cross-phenotyped separately with races of the rust and anthracnose pathogens. The results confirmed that Ur-14 and Co-3 4 /Phg-3 cluster in Ouro Negro conferred resistance to rust and anthracnose, respectively, and that Ur-14 and the Co-3 4 /Phg-3 cluster were closely linked. Genotyping the F 2:3 families, first with 5398 SNPs on the Illumina BeadChip BARCBEAN6K_3 and with 15 SSR, and eight KASP markers, specifically designed for the candidate region containing Ur-14 and Co-3 4 /Phg-3, permitted the creation of a high-resolution genetic linkage map which revealed that Ur-14 was positioned at 2.2 cM from Co-3 4 /Phg-3 on the short arm of chromosome Pv04 of the common bean genome. Five flanking SSR markers were tightly linked at 0.1 and 0.2 cM from Ur-14, and two flanking KASP markers were tightly linked at 0.1 and 0.3 cM from Co-3 4 /Phg-3. Many other SSR, SNP, and KASP markers were also linked to these genes. These markers will be useful for the development of common bean cultivars combining the important Ur-14 and Co-3 4 /Phg-3 genes conferring resistance to three of the most destructive diseases of common bean.

  11. Fisica a escala de Planck usando o principio de incerteza generalizado: efeitos nas flutuações primordiais e buracos negros

    Science.gov (United States)

    Horvath, J. E.; Custódio, P. S.

    2003-08-01

    Em escalas proximas à escala de Planck todas as teorias perturbativas de cordas produzem essenciamente a mesma relação de conmutação entre as coordenadas e impulsos (a chamada "álgebra deformada"), permitindo assim estudar a física resultante independentemente dos detalhes da teoria de cordas que seja considerada correta. Este resultado completamente geral, que inclui as interações gravitacionais junto com o resto dos campos pode ser considerada uma versão generalizada (GUP) do Princípio de Incerteza de Heisenberg. Aplicamos neste trabalho essas relações de conmutação para dois sistemas físicos bem definidos: buracos negros de massas próximas à massa de Planck, e flutuações quânticas em pequenas escalas antes do universo sofrer inflação. Obtemos dois resultados concretos dos efeitos do GUP : o primeiro é que o GUP impede a evaporação completa de buracos negros microscópicos na extensão do formalismo semiclássico, deixando assim remanescentes de pequena massa que já foram postulados como candidatos a matéria escura. O segundo resultado é o 'smoothing' das flutuações primordiais em pequenas escalas que levariam à produção de buracos negros primordiais após a inflação, impedindo assim a produção abundante destes últimos e predizendo abundancias atuais bem menores do que os limites disponíveis. Concluimos que, analogamente a utilização do Princípio de Incerteza de Heisenberg para estudar e determinar propriedades fundamentais das interações sem gravitação, o GUP e uma ferramenta poderosa para estudar uma ampla variedade de sistemas trans-Planckianos e predizer seu comportamento dispensando cálculos mais detalhados proprios da teoria quântica da gravitação.

  12. Processamento do alho negro

    OpenAIRE

    Pires, Liliane de Souza [UNESP

    2014-01-01

    Garlic (Allium sativum) has excellent nutritional value, due to its vitamins content like A, B2, B6 and C, amino acids, enzymes, biologically active compounds and minerals like iron, zinc, selenium and iodine. The various health benefits are generally attributed to organosulfur compounds. Black garlic is obtained from raw garlic submitted to thermal treatment at controlled temperature and relative humidity for long time periods. The black color of the garlic is due to the Maillard reaction an...

  13. Cerro Negro, Nicaragua Images

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This cinder cone in western Nicaragua has a name that means "black hill." It has erupted more than 20 times since its birth in 1850. Explosive eruptions from the...

  14. Rising Mal-Employment and the Great Recession: The Growing Disconnection between Recent College Graduates and the College Labor Market

    Science.gov (United States)

    Fogg, Neeta P.; Harrington, Paul E.

    2011-01-01

    This article looks at the phenomenon of mal-employment among college graduates in the United States, beginning with an overview of labor-market trends and the effects of the Great Recession on the job-market experiences of young people, including recent college graduates. It then defines "mal-employment" and examines its incidence over…

  15. Perfil demográfico dos Hupd'äh, povo Maku da região do Alto Rio Negro, Amazonas (2000-2003 Perfil demográfico de los Hupd'äh, pueblo Maku de la región del Alto Rio Negro, Amazonas (2000-2003 Demographic profile of the Hupd'äh, a Maku people living the Upper Rio Negro Region, State of Amazonas, Brazil (2000-2003

    Directory of Open Access Journals (Sweden)

    Marina Machado

    2009-06-01

    Full Text Available Os Hupd'äh são um povo de língua Maku, habitante da região do Alto Rio Negro, Amazonas, Brasil. Lideranças indígenas, antropólogos, missionários e profissionais de saúde afirmam que eles estariam vivendo em condições de saúde precárias, com alta mortalidade geral e infantil. A partir de dados provenientes do Distrito Especial Indígena do Rio Negro - DSEI-RN, da Funasa/MS, para o período 2000-2003, foi realizado um estudo descritivo para avaliar o perfil demográfico e conhecer melhor essa população, contribuindo para a implementação de políticas públicas que lhe favoreçam e para os debates em antropologia, demografia e saúde indígena. A população de 1.487 indivíduos, em 2003, cresceu 8,4% ao ano no período estudado. Sua composição por idade e sexo indica concentração de jovens (44,9% com menos de 15 anos, além da predominância de população do sexo masculino. A taxa bruta de natalidade (TBN média do período foi de 33,4 nascimentos por mil habitantes, a de fecundidade total (TFT correspondeu a 3,4 filhos por mulher, a de mortalidade (TBM foi de 10 óbitos por mil habitantes e a de mortalidade infantil (TMI chegou a 116,3 óbitos por mil nascimentos. O aperfeiçoamento da coleta de informações, o elevado crescimento vegetativo e a intensa mobilidade espacial dos Hupd'äh poderiam explicar o alto ritmo de crescimento verificado entre 2000 e 2003.Los Hupd'äh son un pueblo de lengua Maku, habitante de la región del Alto Río Negro, Amazonas, Brasil. Liderazgos indígenas, antropólogos, misionarios y profesionales de la salud, afirman que estarían viviendo en condiciones de salud precarias, con alta mortalidad general e infantil. A partir de datos provenientes del Distrito Especial Indígena del Río Negro - DSEI-RN, de la Funasa/MS, para el período 2000-2003, fue realizado un estudio descriptivo para evaluar el perfil demográfico y conocer mejor esta población, contribuyendo con la implementación de pol

  16. Representações do negro em cidade de Deus: uma análise descritiva de quatro personagens do filme

    OpenAIRE

    Torres, Célia Cristina

    2008-01-01

    Esta dissertação pretende abordar, dentro da perspectiva da comunicação contemporânea, algumas questões sobre as formas de representação do negro no cinema brasileiro contemporâneo, buscando verificar o que o cinema atual mantém ou não de herança do cinema realizado em outras épocas. Para tanto, escolhemos como objeto de análise o filme Cidade de Deus (2002), de Fernando Meirelles, obra que, mesmo com uma concepção estética cinematográfica próxima da publicidade e do videoclipe, faz uma ...

  17. A plena luz del día: Mataharis (2007 de Icíar Bollaín y la revisión del cine negro

    Directory of Open Access Journals (Sweden)

    Katarzyna Paszkiewicz

    2015-10-01

    Full Text Available Este artículo ofrece una lectura de la película Mataharis (2007 desde la óptica de las convenciones del film noir. Si bien el contexto en el cual trabajan las espías de la película es distinto del de los detectives del género negro clásico, su posición de dominio —tematizada en el filme mediante la apropiación de la mirada inquisitiva, considerada tradicionalmente como prerrogativa del sujeto masculino— permite una reflexión más amplia sobre las ambigüedades y paradojas que surgen en la representación de las mujeres como figuras de poder en la ficción detectivesca.

  18. ESPACIADO ENTRE PLANTAS Y NÚMERO DE HOJAS EN EL TABACO NEGRO TAPADO. I. EFECTO EN EL CRECIMIENTO Y DESARROLLO

    OpenAIRE

    Juan M. Hernández Martínez; Yarilis León González; Betty Hernández García

    2015-01-01

    El estudio se realizó en la Estación Experimental del Tabaco "San Juan y Martínez" provincia Pinar del Río, con el objetivo de determinar la influencia de diferentes espaciados entre plantas y el número de hojas en el crecimiento y desarrollo del tabaco negro variedad “Corojo-2006” bajo tela. Se utilizó un diseño experimental de bloques al azar con cuatro réplicas y dieciséis tratamientos producto de la combinación de cuatro espaciados entre plantas (0,30; 0,35; 0,40 y 0,45 m) y cuatr...

  19. Science Education at Arts-Focused Colleges

    Science.gov (United States)

    Oswald, W. Wyatt; Ritchie, Aarika; Murray, Amy Vashlishan; Honea, Jon

    2016-01-01

    Many arts-focused colleges and universities in the United States offer their undergraduate students coursework in science. To better understand the delivery of science education at this type of institution, this article surveys the science programs of forty-one arts-oriented schools. The findings suggest that most science programs are located in…

  20. Are Homeschoolers Prepared for College Calculus?

    Science.gov (United States)

    Wilkens, Christian P.; Wade, Carol H.; Sonnert, Gerhard; Sadler, Philip M.

    2015-01-01

    Homeschooling in the United States has grown considerably over the past several decades. This article presents findings from the Factors Influencing College Success in Mathematics (FICSMath) survey, a national study of 10,492 students enrolled in tertiary calculus, including 190 students who reported homeschooling for a majority of their high…

  1. Metacognitive Enrichment for Community College Students

    Science.gov (United States)

    Wyre, Steven H.

    2012-01-01

    Recent research was conducted to explore how introducing metacognitive enrichment into courses containing implicit or explicit critical thinking goals would affect the students' personal epistemological maturity. At the beginning of a fall semester at a moderate sized community college in the southeastern United States, 733 students were divided…

  2. A desigualdade no “topo”: empregadores negros e brancos no mercado de trabalho brasileiro = Inequality on the top: black and white employers in Brazilian job market

    Directory of Open Access Journals (Sweden)

    Nunes, Jordão Horta

    2016-01-01

    Full Text Available Os empregadores, em razão de sua posição no binômio capital-trabalho, ocupariam provavelmente estratos de remuneração mais alta. No entanto, há desníveis de rendimentos, como ocorre entre trabalhadores brancos e negros, em que estes se tornam empregadores preponderantemente em setores menos privilegiados e ocupações com alto índice de informalidade, em pequenos empreendimentos com menor estabilidade. Este artigo a apresenta um breve perfil de empregadores negros e brancos no Brasil; b demonstra as desigualdades de inserção na estrutura do mercado de trabalho e c mensura os diferenciais médios de renda a fim de determinar o peso de fatores produtivos e da discriminação racial sobre a renda média dos empregadores estratificados por raça e sexo. Com base na análise quantitativa, empregando o método de decomposição de Oaxaca-Blinder, sustenta-se que existe uma diferença significativa de rendimentos entre estratos orientados por raça e sexo de empregadores que não pode ser creditada unicamente a fatores associados, como nível de escolaridade, experiência ou diferentes inserções ocupacionais, mas provém de um resíduo não explicado que é atribuído à discriminação de raça ou sexo

  3. Coleoptera (Insecta as forest fragmentation indicators in the Rio Negro sub-region of the Pantanal, Mato Grosso do Sul, Brazil

    Directory of Open Access Journals (Sweden)

    S. Favero

    Full Text Available The purpose of this study was to evaluate the integrity of two forest fragments in Rio Negro Pantanal sub-region, using coleopterans as environmental indicators. The study was carried out at Santa Emilia Farm in the Rio Negro sub-region, municipality of Aquidauana, Mato Grosso do Sul (19º 30' 18'' S and 55° 36' 45'' W. Two sites were selected, locally denominated as "cordilheiras" (narrow and elongated strands of elevated soil, one with low degree of anthropic disturbance (CL and the other, currently undergoing restoration process (TD. The sampling sites were determined using a GPS device. Ten pit-fall traps containing water and detergent were used for the specimens sampling, which were screened and identified. Abundance, richness, diversity and similarity were determined. Abundance was higher for CL (n = 277 than for TD (n = 251. The same was observed for the diversity indices, CL showed H' = 2.83 bit.individual-1 and TD = 2.48 bit.individual-1, confirming the interferences made for abundance. Specimens of ten families were captured in CL area and seven families in TD area, indicating higher richness in CL, when compared to TD. The linear correlation coefficient (p > 0.05 indicates that both areas are significantly different, showing similarity value of 66.7%. The data show that the structure and disturbance degree in the environment integrity influence the composition of beetles fauna, causing the increase of abundance, richness and diversity in anthropogenic environments undergoing the early stage of regeneration.

  4. UNA PROPUESTA DE AULA PARA EL ABORDAJE DE LA REGIÓN DEL ALTO VALLE DE RÍO NEGRO Y NEUQUÉN

    Directory of Open Access Journals (Sweden)

    Guillermina Muñoz Castillo

    2014-12-01

    Full Text Available Within the Postgraduate specialization Educational contents in Geography in National Comahue University, the interest was focused in the study involved North Patagonia region and the spatial transformations derived from global and national economic restructuring in recent times. The present report presents a collection of contents and geographical themes associated with this area, directed to plan a new annual schedule of geographic classroom contents. The idea behind this proposal was the incorporation of the concept of region, considering the High Valley region of Negro and Neuquén rivers as a study case, and the analysis of fruit farming understood as one of the local production processes which clearly show significant changes in its dynamics as a result of the macroeonomic transformations. The objective is to propose contents which allow middle school students to acquire new knowledge about the North Patagonia region, specifically the Alto Valle region of Río Negro and Neuquén, based on the incomplete study of the region as a cross-curricular theme. This presentation offers a new perspective of thinking about new teaching approaches in the classroom in which students’ everyday life would be considered, specially their own representations of their local sphere as a valid tool to build meaningful and socially relevant knowledge. Geography teaching needs to reconsider to meet students’ demands, to provide tools to offer a solution of their problems and practical needs. The construction of a critical and reflexive subject is essential, and Geography, particularly, assumes a formative and assiduous role, because, through its tools, it intends to realise the student’s intervention, turning himself into an active participant of the construction of his reality.

  5. Fluctuación poblacional del picudo negro (Cosmopolites sordidus Germar del plátano (Musa AAB en San Carlos, Costa Rica

    Directory of Open Access Journals (Sweden)

    Carlos Muñoz Ruiz

    2007-05-01

    Full Text Available Se evaluó el efecto de las lesiones provocadas por el picudo negro (Cosmopolites sordidus, Germar en una plantación de plátano “Curraré”, según dos sistemas de producción: el tradicional y el convencional, en la zona de San Carlos, Costa Rica. El proyecto se ordenó en un diseño experimental irrestricto al azar, con cuatro repeticiones. Se evaluaron las variables vegetativas (altura de la planta, diámetro del pseudotallo, durante el desarrollo de la plantación (primer año y las variables productivas (peso del racimo, calibre y longitud del dedo central de la segunda mano en el momento de cosechar los racimos. También se evalúo la eficiencia de dos métodos de muestreo y captura de adultos del picudo negro, la trampa tipo “disco” y con feromona Cosmolure ®, de Chem Tica S A. en potes de plástico enterradas en el suelo. No hubo diferencias significativas en el número de captura en ambos métodos de muestreo. Tampoco se pudo encontrar ninguna relación del clima con el número de individuos capturados en este experimento. El daño del insecto en el cultivo de plátano fue evaluado según la metodología o escala de Vilardebo (1971, y se obtuvieron resultados de lesiones inferiores al 5%, los que se consideraron no perjudiciales económicamente para la actividad platanera en la zona de influencia del estudio. Se utilizó también la escala de Bridge, la cual no fue funcional en este estudio.

  6. Quality characterization and evaluation of bentonites from the provinces of San Juan and Río Negro (Argentina) for their use in the oil and ceramics industries

    Energy Technology Data Exchange (ETDEWEB)

    Hidalgo, N.; Senese, A.; Cano, E.; Sarquis, P.

    2016-07-01

    The aim of this research work is to characterize bentonites, both physically and chemically, as well as mineralogically, from deposits located in the Argentine provinces of San Juan and Rio Negro. The study is completed with technological assays to evaluate the quality of the samples under study so as to determine possible industrial uses and/or applications for this material. To carry out this work, four samples of bentonite, identified as M1, M3, and M4, from the province of San Juan, and another, identified as M2, from the province of Rio Negro were used. Physical characterization consisted of determining: swelling, density, moisture, pH and specific gravity of the bentonite samples through application of a number of techniques. Chemical characterization of major components was carried out by using wet methods through acid attack, whilst ICP was used to characterize minor components. Mineralogical characterization was carried out by using an infrared spectrometer. The technological assays for evaluating the quality of the bentonite were carried out following the method indicated by the API and SEGEMAR standards, among others, in order to determine possible uses and/or applications, mainly in the oil and ceramics industries It was found that the M2 bentonite is the most suitable to be used as a drilling mud as it meets the requirements specified by the API standards. The M3 bentonite, due to its physico-chemical characteristics such as low rheology, swelling, low iron content, amongst others, is the most suitable for the ceramics industry. (Author)

  7. Vale (também o que está escrito: o pensamento negro contemporâneo como parte do pensamento social brasileiro

    Directory of Open Access Journals (Sweden)

    Amauri Mendes Pereira

    2011-05-01

    Full Text Available

    O texto procura dar visibilidade a noticiário, artigos e outros documentos publicados na Imprensa Negra paulista entre as décadas iniciais e os anos 40 do século XX. E argumenta que, por sua diversidade, escopo e complexidade, o pensamento que ali se expressa constitui parte do chamado pensamento social brasileiro. Busca, também, visibilizar o racialismo predominante nas idéias e práticas sociais da intelectualidade brasileira, responsável pela reestruturação “republicana” de mecanismos capazes de perpetuar desigualdades sociais: as diferenças “raciais”, óbvias antes da abolição, precisavam de novos “jeitos” face aos desejos manifestos de branquear a população e ao incremento da imigração, e devido, também, à nova situação jurídica de igualdade formal entre todos os cidadãos. O pensamento social no meio negro se esforça por ser porta-voz das condições extremamente adversas vivenciadas nos meios negros, e de suas demandas de reconhecimento e inclusão social.

  8. Vale (também o que está escrito: o Pensamento Negro Contemporâneo como parte do Pensamento Social no Brasil (2ª parte

    Directory of Open Access Journals (Sweden)

    Amauri Mendes Pereira

    2011-07-01

    Full Text Available

    O texto procura dar visibilidade a noticiário, artigos e outros documentos publicados na Imprensa Negra paulista entre as décadas iniciais e os anos 40 do século XX. E argumenta que, por sua diversidade, escopo e complexidade, o pensamento que ali se expressa constitui parte do chamado pensamento social brasileiro. Busca, também, visibilizar o racialismo predominante nas idéias e práticas sociais da intelectualidade brasileira, responsável pela reestruturação “republicana” de mecanismos capazes de perpetuar desigualdades sociais: as diferenças “raciais”, óbvias antes da abolição, precisavam de novos “jeitos” face aos desejos manifestos de branquear a população e ao incremento da imigração, e devido, também, à nova situação jurídica de igualdade formal entre todos os cidadãos. O pensamento social no meio negro se esforça por ser porta-voz das condições extremamente adversas vivenciadas nos meios negros, e de suas demandas de reconhecimento e inclusão social.

  9. Organizational Adaptation of Liberal Arts Colleges during the Great Recession of 2007

    Science.gov (United States)

    Hilbun, Ashlie Junot; Mamiseishvili, Ketevan

    2016-01-01

    The study we report here explored how private liberal arts colleges adapted to the Great Recession of 2007. We examined institutional changes at three private liberal arts colleges and their effects on the institutions' operations. For this multiple-case study we analyzed data from three colleges in the southeastern region of the United States;…

  10. Effects of the Decline in Social Capital on College Graduates' Soft Skills

    Science.gov (United States)

    Andreas, Sarah

    2018-01-01

    Both businesses and recent college graduates in the United States attribute the lack of soft skills in recent college graduates to the colleges' inability to prepare students for the workforce. This article explores the literature on social capital, human capital and social learning theory, offering an alternative hypothesis for why recent…

  11. Social Disorganization Theory and Crime Rates on California Community College Campuses

    Science.gov (United States)

    Ravalin, Tamara; Tevis, Tenisha

    2017-01-01

    Recent media attention concerning the escalation of crime on college campuses has created a sense of urgency to address how crime will impact the largest community college system in the United States, California Community Colleges. Crime can deter academic success and social engagement. This study utilizes social disorganization theory to examine…

  12. Decisions and Barriers to First-in-Family College Student Enrollment

    Science.gov (United States)

    Vonk, Garrett B.

    2013-01-01

    United States Government scrutiny of enrollment practices at for-profit colleges has caused significant decreases in profitability at career colleges. The phenomenological problem explored in this study was the declining enrollment at career colleges. Systems theory and Maslow's hierarchy of needs theory formed the conceptual framework for this…

  13. Sports Betting and Other Gambling in Athletes, Fans, and Other College Students

    Science.gov (United States)

    Nelson, Toben F.; LaBrie, Richard A.; LaPlante, Debi A.; Stanton, Michael; Shaffer, Howard J.; Wechsler, Henry

    2007-01-01

    Gambling on college and professional sports and the influence of attending colleges with differing levels of "sports interest" were examined among athletes, sports fans, and other students (N = 10,559) at 119 colleges in the United States using multilevel statistical analysis. Athletes and fans reported more sports gambling compared to…

  14. Childhood (Mis)Fortune, Educational Attainment, and Adult Health: Contingent Benefits of a College Degree?

    Science.gov (United States)

    Schafer, Markus H.; Wilkinson, Lindsay R.; Ferraro, Kenneth F.

    2013-01-01

    College-educated adults are healthier than other people in the United States, but selection bias complicates our understanding of how education influences health. This article focuses on the possibility that the health benefits of college may vary according to childhood (mis)fortune and people's propensity to attain a college degree in the first…

  15. Administrative Governance and Mission of Two Year Colleges within Universities. SACE Research Report #14.

    Science.gov (United States)

    Dunlap, William S.

    It is estimated that over 200 two-year colleges exist within universities in the United States. In April 1987, at the annual meeting of the American Association of Community and Junior Colleges, the Council of Two Year Colleges within Universities was formed to better represent the issues and concerns unique to these academic institutions. In…

  16. Public versus Private Colleges: Political Participation of College Graduates

    Science.gov (United States)

    Lott, Joe L., II.; Hernandez, Jose; King, Joe P.; Brown, Tiffany; Fajardo, Ismael

    2013-01-01

    Using data from the Baccalaureate and Beyond Longitudinal Study (B&B:93/03) of College Graduates, we use structural equation modeling to model the relationships between college major, values held in college, collegiate community service participation, and the post-college political participation of college graduates by public versus private…

  17. Non-Military Education and the United States Army: A History

    Science.gov (United States)

    1972-01-01

    Claudius Berard and Joseph DuCummun, "Teachers of French" Thomas Gimbrede, "Teacher of Drawing" and 5 first and second class (Junior and Senior...Marine Corps Air Force Total DoD t. NNor g Nero Negro Negro NegroI Race White and Total Whi[te and ITotil Whitel and Total ~n It e. and Total Whitel and

  18. Cyberbullying in College

    Directory of Open Access Journals (Sweden)

    Carlos P. Zalaquett

    2014-03-01

    Full Text Available Cyberbullying is commonly presented as affecting K-12 populations. Current research suggests cyberbullying continues in college. A diverse sample of 613 university students was surveyed to study their cyberbullying experiences in high school and college. Nineteen percent of the sample reported being a victim of cyberbullying in college and 35% of this subsample reported being cyberbullied in high school. Additional findings and practical implications are presented.

  19. Rio Grande Floodway, Truth or Consequences Unit, NM, Cuchillo Negro Dam Foundation Report. Volume 3. Appendix E, Appendix F and Appendix G

    Science.gov (United States)

    1992-12-01

    a 50 per cent reduction in explosives load. The explosives should be well distributed in the hole using decks and detonating cord do- nlines . Line...8217 Handbook Describing Practical Methods of Using Explosives for Various Purposes 0 Prepared by TECHNICAL MARKETING SERVICES - EXPLOSIVES Sixth Edition

  20. Comportamiento productivo y reproductivo del ganado holstein rojo, holstein negro y pardo suizo en Palmira, Valle del Cauca

    Directory of Open Access Journals (Sweden)

    Zapata Oscar

    1989-06-01

    Full Text Available Three breeds of dairy cattle (26 Red Holstein RH, 97 Black Holstein BH and 29 Brown Swiss BS, were evaluated for reproductive eficiency, and milk production for the years 1979 - 1987 a t the Instituto Colombiano Agropecuario, Palmira. Days of milking, milk and fat production were for BH (324.0days, 2545.9 kg, 91.1 kg for the RH (300.0 days, 2243.7 kg, 81.0 kg for the BS (298.2 days, 1886.6 kg, 66.9 kg. % fat average were 3.6% in RH, 3.7 % in BH and BS. The lactation curves for the three breeds were best ajusted with the model: Y=A+B(lnt + C(lnt2. Larger persistaency was observed on BS followed by RH. The BS presented better reproductive efficiency than RH and BH with a mean of 169.0,177.4 and 195.6 days, calving data-conception and 2.0, 22 and 22 for number of services per conception. The HR breed had a calving age of 3.4 years and 470.5 kg of calving weight larger than 3.5 years and 440.0 kg for the BH and 3.8 years and 458.1 kg for the BS. Average weight at birth for males and females together BS showed grater weights (37.02 kq, BH and RH showed similar results (36.0 and 362 kg. The incidence of problem at birth was higher for RH (10.90/0 and puerperium problems in BS(21.60,b. Not significal effect of calving weight and rainfall on milk yield and calving date-conception. In most cases there was no correlation between milk yield and calving date-conception. There was a very narow relation between calving date- conception and number of services per conception.En el Instituto Colombiano Agropecuario-Palmira, se evaluó el comportamiento productivo y reproductivo de 152 vacas; 26 Holstein Rojo (HR, 97 Holstein Negro (HN y 29 vacas Pardo Suizo (PS, durante el período 1979-1987. La mayor duración de la lactancia, producción de leche y grasa (kg la presentó la raza HN (324 días, 2545.9 ka, 91.1 kg, seguido de la HR (300 días, 2243.7,81.0 kg y de la PS (298.2 días, 1886.6 kg, 66.9 kg. los porcentajes de grasa fueron 3.6 (HR y 3.7010 (HN y PSI

  1. Oil Vulnerabilities and United States Strategy

    Science.gov (United States)

    2007-02-08

    Mazda, Mercedes - Benz , Ford, Mercury, and Nissan offer flexible fuel vehicles in the United States. Ethanol is currently produced in the United States...USAWC STRATEGY RESEARCH PROJECT OIL VULNERABILITIES AND UNITED STATES STRATEGY by Colonel Shawn P. Walsh...Colleges and Schools, 3624 Market Street, Philadelphia, PA 19104, (215) 662-5606. The Commission on Higher Education is an institutional accrediting

  2. Beyond College Eligibility: A New Framework for Promoting College Readiness. College Readiness Indicator Systems Resource Series

    Science.gov (United States)

    Annenberg Institute for School Reform at Brown University, 2014

    2014-01-01

    The College Readiness Indicator Systems (CRIS) initiative was developed in response to a troubling pattern: More students than ever are enrolling in college after high school, but many of them are not college ready, as evidenced by persistently low rates of college completion. The sense of urgency to close the gap between college eligibility and…

  3. Fontes autotróficas de energia para peixes do canal principal e quelônios ao longo da bacia do médio rio Negro, Amazônia Brasil

    OpenAIRE

    Souza, Mario Jose Fonseca Thome de

    2005-01-01

    O canal principal do médio rio Negro é caracterizado por alta concentração de matéria orgânica dissolvida, baixo nível de nutrientes e produtividade primária. Os principais organismos autotróficos encontrados nesse sistema são fitoplânctons, perifítons e árvores das florestas de igapó. Folhas, frutos e sementes que caem do igapó são responsáveis por 99% da produção primária total regional. O canal principal do rio Negro possui uma diversa assembléia de pequenos e médios peixes bentônicos d...

  4. College Drinking - Changing the Culture

    Science.gov (United States)

    ... about college alcohol policies College Drinking - Changing the Culture This is your one-stop resource for comprehensive ... More about special features College Drinking - Changing the Culture This is your one-stop resource for comprehensive ...

  5. What Is College for?

    Science.gov (United States)

    Wise, Phyllis M.; Martin, Carolyn A.; Kinbrough, Walter M.; Hitt, John C.; Urgo, Joseph R.; Lief, Charles G.; Drake, Michael V.; Hellyer, Brenda; Pepicello, William

    2013-01-01

    Lately there has been a great deal of discussion about the importance of measuring a college's "return on investment." Is the point of a college education quantifiable results or personal and intellectual growth? In pursuit of answers, "The Chronicle" asked a selection of higher-education leaders. Phyllis M. Wise, Chancellor of…

  6. Latino College Completion: Hawaii

    Science.gov (United States)

    Excelencia in Education (NJ1), 2012

    2012-01-01

    In 2009, Excelencia in Education launched the Ensuring America's Future initiative to inform, organize, and engage leaders in a tactical plan to increase Latino college completion. An executive summary of Latino College Completion in 50 states synthesizes information on 50 state factsheets and builds on the national benchmarking guide. Each…

  7. Faculty Handbook. Regis College.

    Science.gov (United States)

    Regis Coll., Weston, MA.

    Regis College policies and procedures are described in this 1976 faculty handbook. Chapter 1 covers college organization and governance, including roles of academic officers and committees. Specific faculty data are presented in Chapter 2, such as definition of academic ranks and titles, recruitment and appointment, promotion, tenure, review,…

  8. Who Takes College Algebra?

    Science.gov (United States)

    Herriott, Scott R.; Dunbar, Steven R.

    2009-01-01

    The common understanding within the mathematics community is that the role of the college algebra course is to prepare students for calculus. Though exceptions are emerging, the curriculum of most college algebra courses and the content of most textbooks on the market both reflect that assumption. This article calls that assumption into question…

  9. Community Colleges Today

    Science.gov (United States)

    Crawford, Corinne; Jervis, Angela

    2011-01-01

    Dr. Jill Biden, Vice President Joe Biden's wife, has been teaching in community colleges for the past 18 years. Dr. Biden believes that community colleges are "…uniquely American institutions where anyone who walks through the door is one step closer to realizing the American dream." This is an inspiring sentiment. However, of all the…

  10. Latino College Completion: Pennsylvania

    Science.gov (United States)

    Excelencia in Education (NJ1), 2012

    2012-01-01

    In 2009, Excelencia in Education launched the Ensuring America's Future initiative to inform, organize, and engage leaders in a tactical plan to increase Latino college completion. An executive summary of Latino College Completion in 50 states synthesizes information on 50 state factsheets and builds on the national benchmarking guide. Each…

  11. Examining Latina College Experiences

    Science.gov (United States)

    Romero, Amanda R.

    2012-01-01

    The purposes of this qualitative narrative study were to explore the potential areas of conflict Latina college students experience between their educational goals and traditional cultural gender roles and expectations. Participants were selected utilizing purposeful sampling methods. All participants were first-generation college students.…

  12. College Rankings. ERIC Digest.

    Science.gov (United States)

    Holub, Tamara

    The popularity of college ranking surveys published by "U.S. News and World Report" and other magazines is indisputable, but the methodologies used to measure the quality of higher education institutions have come under fire by scholars and college officials. Criticisms have focused on methodological flaws, such as failure to consider…

  13. An analysis of the influence of the local effects of climatic and hydrological factors affecting new malaria cases in riverine areas along the Rio Negro and surrounding Puraquequara Lake, Amazonas, Brazil.

    Science.gov (United States)

    Coutinho, Paulo Eduardo Guzzo; Candido, Luiz Antonio; Tadei, Wanderli Pedro; da Silva Junior, Urbano Lopes; Correa, Honorly Katia Mestre

    2018-04-26

    A study was conducted at three sampling regions along the Rio Negro and surrounding Puraquequara Lake, Amazonas, Brazil. The aim was to determine the influence of the local effects of climatic and hydrological variables on new malaria cases. Data was gathered on the river level, precipitation, air temperature, and the number of new cases of autochthonous malaria between January 2003 and December 2013. Monthly averages, time series decompositions, cross-correlations, and multiple regressions revealed different relationships at each location. The sampling region in the upper Rio Negro indicated no statistically significant results. However, monthly averages suggest that precipitation and air temperature correlate positively with the occurrence of new cases of malaria. In the mid Rio Negro and Puraquequara Lake, the river level positively correlated, and temperature negatively correlated with new transmissions, while precipitation correlated negatively in the mid Rio Negro and positively on the lake. Overall, the river level is a key variable affecting the formation of breeding sites, while precipitation may either develop or damage them. A negative temperature correlation is associated with the occurrence of new annual post-peak cases of malaria, when the monthly average exceeds 28.5 °C. This suggests that several factors contribute to the occurrence of new malaria cases as higher temperatures are reached at the same time as precipitation and the river levels are lowest. Differences between signals and correlation lags indicate that local characteristics have an impact on how different variables influence the disease vector's life cycle, pathogens, and consequently, new cases of malaria.

  14. Indagaciones teórico-metodológicas sobre la construcción de ciudadanía cultural de comunidades de origen inmigrante en la Provincia de Río Negro (Argentina)

    OpenAIRE

    Patricia Dreidemie; Eduardo J. Vior

    2010-01-01

    The article introduces a research on citizenship practices of immigrant communities in Río Negro province (Argentina), and their consequences on public federal and state policy. The goal is to develop theoretical and methodological tools for fieldwork within an intercultural approach to Human Rights. It considers that: 1- immigration modifiescitizenship notions of the host society; 2- citizenship has always a cultural connotation; and, 3- the coexistence of diverse ethno-cultural social group...

  15. Para além do Atlântico Negro: problematizações sobre antirracismo e transnacionalismo no Brasil (1978-2010 = Beyond the Black Atlantic problematizations about antiracism and transnationalism in Brazil (1978-2010

    Directory of Open Access Journals (Sweden)

    Trapp, Rafael Petry

    2012-01-01

    Full Text Available A partir da Conferência de Durban, em 2001, os movimentos antirracismo no Brasil sofreram significativa reestruturação, pois a participação do país nessa conferência propiciou uma nova perspectiva de ação política. Desde o final da década de 1970, o Movimento Negro tem exercido forte influência nas lutas antirracistas, ao adotar uma política não apenas denunciadora do racismo, mas propositiva, apontando para a urgência da revisão das posturas do Estado frente à chamada “questão racial”. Com a Conferência de Durban, o Brasil passou a se inserir no quadro transnacional do antirracismo, instituindo-se politicamente no espaço do Atlântico Negro, conceito de Paul Gilroy largamente utilizado para pensar o trânsito do pensamento intelectual afrodescendente no eixo África-América-Europa. Ao problematizar o Brasil no âmbito do Atlântico Negro, inquirimos as especificidades das relações étnicas na formação histórica do Brasil, que podem tensionar a utilização dessa categoria no contexto brasileiro. Durban, assim como o Atlântico Negro, instituem o internacionalismo no antirracismo no Brasil, provocando um debate sobre o particularismo da história nacional e o transnacionalismo

  16. The Teaching of Italian in Institutions of Higher Learning in the United States and Canada.

    Science.gov (United States)

    Istituto Italiano di Cultura, New York, NY.

    This booklet contains a list of institutions of higher learning in the United States and Canada which teach Italian. Italian is taught, according to the booklet, in 383 colleges and universities in the United States (including 28 community or junior colleges), and in 15 colleges and universities in Canada. Other information includes the number of…

  17. A INTERSEÇÃO ENTRE RAÇA E POBREZA NA TRAJETÓRIA ESCOLAR DE JOVENS NEGROS / The intersection of race and poverty in educational trajectories among young blacks

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    Carlos Augusto Sant'Anna Guimarães

    2014-09-01

    Full Text Available A narrativa dos caminhos percorridos por jovens no processo de escolarização fornece elementos importantes para a compreensão dos fatores intervenientes e/ou determinantes do sucesso ou fracasso escolar entre estudantes negros. Estudos indicam que, mesmo controlando as variáveis de origem social, ainda há diferenciais significativos no processo de escolarização formal entre brancos e negros. Assim, o artigo analisou quais fatores explicam trajetórias educacionais marcadas pelas desigualdades sociorraciais. Os conceitos de habitus, capital social, cultural e simbólico forneceram balizas analíticas para a investigação. Todos os agentes, de um modo geral, pertencem a famílias com baixo capital econômico, cultural e social. O estudo evidenciou similitudes e dessemelhanças nos caminhos percorridos no interior do sistema escolar pelos jovens negros das camadas populares. O texto sugere que aspectos intrafamiliares e sociocomunitários são relevantes para entender diferentes percursos trilhados pelos indivíduos no sistema educacional. Palavras-chave: Trajetórias escolares. Capital cultural. Capital social. Sucesso escolar.

  18. Linhagens de feijão do cruzamento 'Ouro Negro' x 'Pérola' com características agronômicas favoráveis Lines of common bean originating from the cross 'Ouro Negro' x 'Pérola' comprising favorable agronomic characteristics

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    Carlos Lásaro Pereira de Melo

    2006-11-01

    Full Text Available O objetivo desse trabalho foi avaliar e caracterizar, em casa de vegetação e campo, linhagens do cruzamento entre as cultivares Ouro Negro e Pérola, quanto à reação às principais raças de Colletotrichum lindemuthianum e Uromyces appendiculatus. Quatrocentas progênies F7:8, de 40 famílias F3:7 previamente selecionadas na população 'Ouro Negro' x 'Pérola', foram pulverizadas com uma suspensão contendo a raça 89 de C. lindemuthianum. Linhagens resistentes à raça 89 receberam inóculo com as raças 73 e 81 de C. lindemuthianum e com mistura de seis raças de U. appendiculatus. Nas avaliações em campo, realizadas em Viçosa e Coimbra, MG, um látice quadrado triplo 9x9 foi utilizado e foram avaliados produtividade de grãos, severidade de mancha-angular e aspecto do grão. Foram identificadas 42 linhagens resistentes às raças de C. lindemuthianum e U. appendiculatus. Foram selecionadas dez linhagens de grãos tipo 'Carioca', com produtividade igual à da cultivar Pérola e resistentes à antracnose, ferrugem e mancha-angular.The objective of this work was to obtain high yielding common bean lines with "Carioca" type grains, resistant to anthracnose, rust and angular leaf spot. Colletotrichum lindemuthianum race 89 was artificially inoculated in 400 F7:8 progenies originated from 40 F3:7 families previously selected in the population 'Ouro Negro' x 'Pérola'. Lines resistant to race 89 were further inoculated with C. lindemuthianum races 73 and 81 and a mixture of six Uromyces appendiculatus races. Field evaluations were performed in Viçosa and Coimbra, MG, Brazil, using a triple 9x9 lattice design and productivity of grains, severity of angular leaf spot and grain aspect were evaluated. Forty two lines resistant to C. lindemuthianum and U. appendiculatus were identified. Ten lines comprising "Carioca" type grains, as productive as commercial cultivar Pérola and resistant to the anthracnose, rust and angular leaf spot were

  19. Aligning High School and College Instruction: Preparing Students for Success in College Level Mathematics

    Science.gov (United States)

    Alexander, Julie

    2013-01-01

    Across the United States, students are entering college with a need for improvement in basic mathematics and communication skills. In 2008, the Florida Legislature passed Senate Bill 1908 which changed the expectations for the senior year of high school for many students. Students who score within certain levels on the mandatory high school…

  20. Supplying Community College Needs in Basic Speech Courses at Florida Junior College at Jacksonville, Florida.

    Science.gov (United States)

    Griggs, Dorothy Feldbinder; Shannon, Mary Louise

    At Florida Junior College at Jacksonville, public speaking instructors employ Jerome S. Bruner's four factors of learning--predisposition to learn, structure of knowledge, sequence, and reinforcement--to plan an effective learning program for students with diverse academic backgrounds and goals. Specifically, six learning units, tailored to both…

  1. Taxonomias das doenças entre os índios Baniwa (arawak e desana (tukano oriental do alto rio negro (Brasil

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    Luiza Garnelo

    2006-12-01

    Full Text Available O presente artigo estuda as taxonomias de doenças de dois povos indígenas da região do Alto Rio Negro, Noroeste amazônico (Brasil: os Baniwa, da família lingüística arawak, e os Desana, da família lingüística tukano oriental. Tomando como base explicativa a produção mítica dessas etnias, as autoras comparam seus sistemas de doença e cura e demonstram que as circunstâncias ligadas ao surgimento de uma doença particular, as representações de pessoa e do mundo natural, e as modalidades de relação entre os grupos humanos, a natureza e o cosmos, participam da interpretação da doença. Essa ênfase na causalidade social e/ou com a ordem do mundo traduz-se na terminologia vernacular e na classificação das doenças em ambos os grupos estudados. A produção do processo patogênico liga-se a uma "economia simbólica da alteridade" (Viveiros de Castro, 2002. Promover a saúde e evitar a doença exigem cooperação, reciprocidade, diligência, controle das ações predatórias e do apetite alimentar e sexual.The present paper studies the disease taxonomies on two indigenous peoples from the upper Negro River region, in the Amazonian northwest (Brazil, the Baniwa, from the Arawak, and the Desana, from the oriental Tukano linguistic families. Taking these ethnies' mythic production as an explicative basis, the authors make comparisons between their disease and cure systems and demonstrate that the circumstances linked to the outbreak of a particular disease, the representation of people and of the natural world, and the modalities of relations between human groups, nature and the cosmos, participate on the disease's interpretation. Both studied groups translate this emphasis on social causality and/or world order into the vernacular terminology and disease classification. The pathogenic process production is linked to an "alteration symbolic economy" (Viveiros de Castro, 2002. Promoting good health and preventing disease, requires

  2. Fora do jogo: a experiência dos negros na classe média brasileira Out of the game: brazilian black middle class experiences

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    Angela Figueiredo

    2004-12-01

    Full Text Available Abordo neste texto o significado da mobilidade social para empresários negros que fazem parte da classe média, a partir do relato das trajetórias de mobilidade e do significado da cor nesse processo. Ao contrário da maioria dos estudos clássicos sobre o tema, que viam na mobilidade social dos negros um exemplo contundente da não existência do preconceito de cor no Brasil, destaco na análise a forma como o preconceito e a discriminação são percebidos pelos entrevistados. Mas ainda que a maioria deles tenha relatado terem sido vítimas do preconceito racial, as respostas variam muito e nenhum deles relatou ter recorrido à justiça. Por este motivo, tenho insistido no fato de que o reconhecimento ou a percepção que o próprio indivíduo tem acerca de ser alvo do preconceito racial não se traduz, necessariamente, na tomada de uma atitude que consideremos eficaz ou politicamente relevante no combate ao racismo.The article deals with the meaning of social mobility for black entrepreneurs and businessmen that can be considered as part of a middle class. The metodology consists of the study of life careers and the place of colour therein. In spite of most canonical studies pointing out to the simple fact of social mobility for Black Brazilians as the best piece of evidence of the absence of a colour bar in Brazil, I single out the way in which such bar is perceived by the informants. However, even though most of them have experienced racial discrimination, their response to it varies a lot and none ever lodged a legal complaint. My argument is that individual recognition or perception of racial discrimination do not conflate straightforwardly with an actual and effective political stance in the struggle against racism.

  3. Organic complexation and translocation of ferric iron in podzols of the Negro River watershed. Separation of secondary Fe species from Al species

    Science.gov (United States)

    Fritsch, E.; Allard, Th.; Benedetti, M. F.; Bardy, M.; do Nascimento, N. R.; Li, Y.; Calas, G.

    2009-04-01

    The development of podzols in lateritic landscapes of the upper Amazon basin contributes to the exportation of organic carbon and associated metals in the black waters of the Negro River watershed. We have investigated the distribution of Fe III in the clay-size fraction of eight organic-rich horizons of waterlogged plateau podzols, to unravel the weathering conditions and mechanisms that control its transfer to the rivers. The speciation and amount of Fe III stored in residual mineral phases of laterites, or bound to organic compounds of weakly and well-expressed podzols, were determined by electron paramagnetic resonance spectroscopy combined with chemical analyses. Reducing conditions restrict the production of organo-Fe complexes in the subsoil B-horizons of waterlogged podzols and most of the Fe 2+ released from the dissolution of Fe-oxides is exported to the rivers via the perched groundwater. However, significant amounts of diluted Fe III bound to organic ligands (Fe IIIOM) and nano Fe-oxides are produced at the margin of the depression in the topsoil A horizons of weakly expressed podzols due to shorter periods of anoxia. The downward translocation of organically bound metals from topsoil A to subsoil B-horizons of podzols occurs in shorter distances for Fe than it does for Al. This separation of secondary Fe species from Al species is attributed to the physical fractionation of their organic carriers in texture contrasted B-horizons of podzols, as well as to the effect of pH on metal speciation in soil solutions and metal binding onto soil organic ligands (mostly for Al). This leads us to consider the topsoil A horizons of weakly expressed podzols, as well as the subsoil Bh horizon of better-expressed ones, as the main sources for the transfer of Fe IIIOM to the rivers. The concentration of Fe IIIOM rises from soil sources to river colloids, suggesting drastic biogeochemical changes in more oxygenated black waters of the Negro River watershed. The

  4. O discurso da diversidade etnicorracial e o governo das diferenças na constituição do sujeito negro

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    Viviane Inês Weschenfelder

    2013-01-01

    Full Text Available O objetivo deste artigo é apresentar como se estrutura o discurso da diversidade etnicorracial no município de Venâncio Aires – RS e de que forma esse discurso contribui para a constituição do sujeito negro venâncio-airense. A análise do jornal Folha do Mate, principal mídia impressa do município em questão, permitiu identificar um deslocamento discursivo ocorrido, sobretudo, a partir do ano de 1988. Característico da Contemporaneidade, o discurso da diversidade procura evidenciar a vivência pacífica das diferentes culturas no mesmo espaço e, ao contornar qualquer sintoma de conflito que possa ocorrer por meio da diferença, ele contribui para a constituição do sujeito negro. A partir das orientações da perspectiva Pós-Estruturalista e das ferramentas analíticas de Michel Foucault, a análise deste discurso pretende possibilitar uma discussão importante no campo da Educação, especialmente com relação às formas de governamento dos indivíduos.Abstract The goal of this article is to present how the ethnical racial diversity discourse is structured in Venâncio Aires county, RS and in what way it contributes to the formation of the black citizen of Venancio Aires. The analisys of Folha do Mate NewsPaper, the main printed media of the current county, allowed to recognize an ocurred discursive shift, especially, from 1988. As characteristic of Contemporary, the diversity discourse tries to evidence how different cultures live peacefully in the same space, when work around any indication of conflict that may ocurr by the difference, it contributes to the black person formation. From the orientations of the post-structuralist perspectives and from the analitical tools of Michel Foucault, the analises of the discourse intends to enable an important debate in the education field, specially in relation to the forms of governments of the individuals.

  5. Dating Violence among College Students: Key Issues for College Counselors

    Science.gov (United States)

    Murray, Christine E.; Kardatzke, Kerrie N.

    2007-01-01

    The authors present a review of literature examining dating violence among college students. They describe 6 key issues related to dating violence among college students that affect college counselors' work. These key issues relate to the incidence and prevalence of physical, sexual, and psychological violence in college students' dating…

  6. Mitos e controvérsias sobre a política de cotas para negros na educação superior Myths and controversies on the policies of quotas for blacks in higher education

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    Mariluce Bittar

    2006-12-01

    Full Text Available Neste texto, analisa-se o processo de implantação da política de cotas para negros na educação superior, tomando como base a implementação dessa política na Universidade Estadual de Mato Grosso do Sul - UEMS. Investigou-se, também, em que medida o sistema de reserva de vagas para negros pode ser considerado uma estratégia de acesso e permanência dos estudantes negros na educação superior. Para atingir tal objetivo, foram entrevistados alunos que ingressaram, pelo sistema de cotas para negros, no Processo Seletivo de 2004 da UEMS nos cursos de Direito e Enfermagem e analisados documentos e legislações referentes à implantação desse sistema na UEMS. Os dados revelaram que os alunos negros compreendem o sistema de cotas como um direito e que a permanência nos cursos depende de ações efetivas, por parte da Universidade, como bolsas de estudo e apoio pedagógico. As cotas representam uma ação afirmativa no sentido de se garantir o respeito à diversidade racial e a superação das desigualdades historicamente construídas.In this text the process of implantation of the politics of quotas for blacks in the higer education is analyzed, taking as base the implementation of this politics in the State University of Mato Grosso do Sul - UEMS. It was investigated, also, where measured the system of vacant reserve for blacks it can be considered a strategy of access and permanence of the black students in the higer education. To reach such objective, pupils who had entered, for the system of quotas for blacks in the Selective Process of 2004 of the UEMS, in the courses of right and nursing had been interviewed, and analyzed referring documents and legislations to the implantation of this system in the UEMS. The data had disclosed that the black pupils understand the system of quotas as a right and that the permanence in the courses depends on action effective, on the part of the University, as pedagogical support and scholarships. The

  7. Quantificação de fluxos de mercúrio gasoso na interface solo/atmosfera utilizando câmara de fluxo dinâmica: aplicação na bacia do Rio Negro Quantification of atmosphere - soil mercury fluxes by using a dynamic flux chamber: application at the Negro River basin, Amazon

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    Gabriella Magarelli

    2005-12-01

    Full Text Available Gaseous mercury sampling conditions were optimized and a dynamic flux chamber was used to measure the air/surface exchange of mercury in some areas of the Negro river basin with different vegetal coverings. At the two forest sites (flooding and non-flooding, low mercury fluxes were observed: maximum of 3 pmol m-2 h-1 - day and minimum of -1 pmol m-2 h-1 - night. At the deforested site, the mercury fluxes were higher and always positive: maximum of 26 pmol m-2 h-1 - day and 17 pmol m-2 h-1 - night. Our results showed that deforestation could be responsible for significantly increasing soil Hg emissions, mainly because of the high soil temperatures reached at deforested sites.

  8. Una tortuga Chelidae (Testudines: Pleurodira de cuello largo en el Grupo Neuquén, Río Negro, Argentina: Significado cronológico y paleobiogeográfico A long-necked Chelidae turtle (Testudines: Pleurodira from the Neuquén Group, Río Negro, Argentina: Chronological and paleobiogeographical significance

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    Marcelo S de la Fuente

    2010-07-01

    Full Text Available Diferentes restos de una tortuga Chelidae cuellilarga de la Formación Anacleto (Santoniano tardío-Campaniano temprano, aflorante en la localidad de Valle de la Luna Rojo, Provincia de Río Negro, Argentina, son conferidos a la especie Yaminuechelys cf. gasparinii De la Fuente, De Lapparent de Broin y Manera de Bianco, 2001. Ellos representan el registro más antiguo para el género y los Chelidae de cuello largo. Se sugiere que el ancestro común de Yaminuechelys e Hydromedusa habitó en Gondwana meridional con anterioridad a la separación de Australia. La presencia de este taxón en el Cretácico Tardío en Patagonia y algunos de los resultados de los análisis filogenéticos previos apoyan la hipótesis sobre una temprana diferenciación y diversificación de los quélidos en dicha región de Gondwana.A long necked chelid turtle species from the Anacleto Formation (late Santonian-early Campanian cropping out at Valle de La Luna Rojo, Río Negro Province, Argentina, is assigned to Yaminuechelys cf. gasparinii De la Fuente, De Lapparent de Broin and Manera de Bianco, 2001 and it represents the oldest record of a long-necked chelid. We suggest that the common ancestor of Yaminuechelys and Hydromedusa lived in Southern Gondwana before the separation of Australia from the remaining Southern Gondwanan landmasses. The presence of this chelid taxon in the Late Cretaceous of Patagonia and some previous phylogenetic analyses support the hypothesis of an early differentiation and diversification of chelids on Southern Gondwana.

  9. Problem Gambling on College Campuses

    Science.gov (United States)

    McComb, Jennifer L.; Hanson, William E.

    2009-01-01

    The vast majority of college students gamble, with some doing so problematically. This article discusses gambling and problem gambling among college students, framing it as an emerging health issue on college campuses nationwide. Given that 4 out of 5 college students admit to gambling, and that approximately 8% gamble problematically, it is…

  10. MECANISMOS EFICIENTES NA PRODUÇÃO DO FRACASSO ESCOLAR DE JOVENS NEGROS: ESTEREÓTIPOS, SILENCIAMENTO E INVISIBILIZAÇÃO

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    Rodrigo Ednilson de Jesus

    2018-01-01

    Full Text Available Resumo: O artigo tem como objetivo refletir sobre alguns dos eficientes mecanismos de produção do fracasso escolar de jovens negros e negras, a partir dos resultados da pesquisa “A exclusão de jovens adolescentes de 15 a 17 anos cursando ensino médio no Brasil: desafios e perspectivas”. A pesquisa foi realizada nos anos de 2012 e 2013 nas cidades de Belo Horizonte, Brasília, São Paulo, Fortaleza e Belém. A partir das experiências narradas pelos jovens adolescentes, ao longo das entrevistas em profundidade realizadas na cidade de São Paulo, foi possível observar como os processos de estereotipização de corpos vistos como anormais, aliados ao silenciamento acerca do racismo, interferem na autoimagem e na autoestima dos jovens, contribuindo, direta e indiretamente, para os elevados índices de reprovação e evasão observados neste grupo étnico-racial.

  11. Trophic ecology of two piranha species, Pygocentrus nattereri and Serrasalmus marginatus (Characiformes, Characidae, in the floodplain of the Negro River, Pantanal

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    Fabiane Silva Ferreira

    2014-12-01

    Full Text Available AIM: This study aimed to evaluate influence of hydrological variation, ontogeny and interspecific variation in the feeding activity and diet composition for P. nattereri and S. marginatus in floodplain of Negro River, South Pantanal. METHODS: The samples were taken with the use of gillnets and cast nets of different sizes, from October/2005 to August/2008. RESULTS: We sampled 748 specimens, 442 of P. nattereri and 306 of S. marginatus. We identified 31 items in the dry and 14 in the flood season for P. nattereri, and 29 items in the dry and eight in the flood season for S. marginatus. For both species, fish was the predominant food item in both seasons. The PERMANOVA results showed that the diet varied significantly between the two species (p<0.001, during ontogenetic development (p<0.001 and seasonally (p=0.024. The ancova results suggests that the intensity of food intake was higher in the dry season (p<0.001 for both species. The niche breadth varied only between studied species with S. marginatus presenting higher niche breadth than P. nattereri. CONCLUSION: Piranhas feed more during dry season, probably because in this period food is more varied and abundant, due to the concentration of fish in the main river channel. There were ontogenetic changes in the diet, with no feeding overlap between the two species, probably because of differences in preference for some items and differences in feeding behavior displayed during hunting attacks.

  12. Comercio, conflictos y alianzas en la frontera luso-española: Capitanía de Río Negro y provincia de Maynas, 1780-1820

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    Carlos Augusto Bastos

    2015-06-01

    Full Text Available En el periodo colonial, las políticas de las coronas ibéricas hacia las fronteras americanas se orientaron no solo al reconocimiento y protección militar de las zonas limítrofes, sino también a controlar los flujos comerciales de esas regiones. Durante las demarcaciones de límites en el siglo XVIII, el contrabando en las áreas de frontera suscitó diversos conflictos entre autoridades españolas y portuguesas. No obstante, el comercio ilegal desempeñaba un papel importante en el abastecimiento de tales áreas, posibilitando así el establecimiento de alianzas locales. En este artículo se abordan estas cuestiones tomando como objeto de estudio la frontera luso-española en el valle amazónico, entre la Capitanía de Río Negro y la provincia de Maynas, durante el período de 1780-1820.

  13. Patrones de uso de sitios naturales y artificiales por Branta bernicla nigricans (Anseriformes: Anatidae en Guerrero Negro, Baja California Sur, México

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    Israel Martínez Cedillo

    2013-06-01

    Full Text Available En el complejo lagunar Guerrero Negro-Ojo de Liebre-Exportadora de Sal inverna el 31% de la población de Ganso de collar (Branta bernicla nigricans que utiliza México (31 000 aves en promedio. Nosotros realizamos censos de punto mensuales (noviembre 2006 a abril 2007 en tres sitios para determinar: (1 los efectos de la época del año y del sitio en la estructura poblacional (grupos de edad y (2 la relación del nivel de marea con la abundan- cia y la proporción de aves alimentándose. La proporción general de adultos fue de 0.68. Esta proporción fue mayor en invierno que en primavera. Por sitio en LGN y ESSA disminuyó y en LOL se mantuvo constante. El incremento de aves inmaduras entre el invierno y la primavera se relaciona con su partida primaveral tardía. La alimentación del Ganso de collar en LOL (el sitio de mayor abundancia fue independiente del nivel de marea, lo que se puede relacionar con dos conductas: (1 que las aves se muevan a lo largo de la laguna, para aprovechar el desfase, de hasta cuatro horas en el nivel de marea o (2 que modifiquen sus estrategias de alimentación, para consumir el pasto flotante.

  14. Water-Level Reconstruction and its Implications for Late Pleistocene Paleontological Site Formation in Hoyo Negro, a Submerged Subterranean Pit in Quintana Roo, Mexico

    Science.gov (United States)

    Rissolo, D.; Reinhardt, E. G.; Collins, S.; Kovacs, S. E.; Beddows, P. A.; Chatters, J. C.; Nava Blank, A.; Luna Erreguerena, P.

    2014-12-01

    A massive pit deep within the now submerged cave system of Sac Actun, located along the central east coast of the Yucatan Peninsula, contains a diverse fossil assemblage of extinct megafauna as well as a nearly complete human skeleton. The inundated site of Hoyo Negro presents a unique and promising opportunity for interdisciplinary Paleoamerican and paleoenvironmental research in the region. Investigations have thus far revealed a range of associated features and deposits which make possible a multi-proxy approach to identifying and reconstructing the natural and cultural processes that have formed and transformed the site over millennia. Understanding water-level fluctuations (both related to, and independent from, eustatic sea level changes), with respect to cave morphology is central to understanding the movement of humans and animals into and through the cave system. Recent and ongoing studies involve absolute dating of human, faunal, macrobotanical, and geological samples; taphonomic analyses; and a characterization of site hydrogeology and sedimentological facies, including microfossil assemblages and calcite raft deposits.

  15. El doble y el espejo en Cisne negro (Darren Aronofsky, 2010. The double and the mirror in Black Swan (Darren Aronofsky, 2010

    Directory of Open Access Journals (Sweden)

    Ana España

    2012-04-01

    Full Text Available Con su último largometraje, Cisne negro (2010, Darren Aronofsky propone una nueva visión de su cine de la obsesión, a través del proceso de autodestrucción de una bailarina, sumergida en su afán por encarnar el papel principal en una obra de ballet.El presente artículo trata de abordar el tratamiento que el director realiza del fenómeno del doble, como vehículo sobre el que se sustenta la crisis obsesiva de la protagonista, atendiendo a sus diversas representaciones y objetivos en la configuración final del texto. With his latest film, Black Swan (2010, Darren Aronofsky offers a new vision of his obsession cinema, through the process of self-destruction of a dancer, immersed in her effort to embody the lead role in a ballet performance. This current article aim to attend the director treatment of the double phenomenon as a vehicle on which rests the obsessive crisis of the protagonist, according to their several representations and objectives in the final configuration of the text.

  16. DETERMINACIÓN DE SISTEMAS FISIOGRÁFICOS PARA EL MANEJO DE RECURSOS NATURALES EN CUENCAS HIDROGRÁFICAS. ARROYOS LOS BERROS Y VENTANA, RÍO NEGRO

    Directory of Open Access Journals (Sweden)

    Ana Paula Salcedo

    2007-12-01

    Full Text Available El paisaje patagónico se caracteriza en líneas generales por la cordillera de los Andes al Oeste, las mesetas de origen sedimentario y basáltico en la porción central y los valles y faldeos dispuestos en sentido Oeste-Este. Dentro de la unidad de mesetas basálticas el macizo de Somuncura es el de mayor dimensión en la Patagonia, ocupando una importante superficie de las provincias de Río Negro y Chubut. El manto basáltico que lo constituye actúa como un gran reservorio del agua que infiltra producto de las precipitaciones, lo que da lugar a la formación de numerosas vertientes en la periferia de la meseta, siendo un importante recurso para el asentamiento humano y el desarrollo de actividades agrícolas y ganaderas. Sin embargo, durante las últimas décadas, distintos factores han confluido en detrimento de las potencialidades para el desarrollo rural en la región, conllevando a un progresivo despoblamiento, a la retracción de las actividades productivas e incluso al abandono de los campos.

  17. The diet of the South American sea lion (Otaria flavescens at Río Negro, Patagonia, Argentina, during the winter-spring period

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    Raimundo L. Bustos

    2012-12-01

    Full Text Available The South American sea lion, Otaria flavescens (Shaw, 1800 population is steadily expanding along the Patagonian coast of Argentina in the last decades. However, little is known about the feeding ecology of the species in the area. The aim of this study was to analyze the food habits of O. flavescens from 91 scats collected at Río Negro province, during the winter and spring of 2005. Fish occurred in 96% of scats containing prey remains, followed by cephalopods (26%. Raneya brasiliensis (Kaup, 1856 was the most frequent and abundant species occurring in 58.6% of samples and constituting almost 50% of fish predated. Second in importance were Porichthys porosissimus (Cuvier, 1829 and Cynoscion guatucupa (Cuvier, 1830 in terms of occurrence (%FO 20.7 and numbers (29.6% respectively. The squid Loligo gahi (d'Orbigny, 1835 was the most frequent cephalopod prey (42.1%, whereas Octopus tehuelchus (d'Orbigny, 1834 was the most abundant (77%. The higher amount and diversity of prey found in the spring in comparison with the winter season might be related to a higher feeding activity of seals or to a seasonal increase in food availability in the area.

  18. Os perigos dos Negros Brancos: cultura mulata, classe e beleza eugênica no pós-emancipação (EUA, 1900-1920

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    Giovana Xavier da Conceição Nascimento

    2015-06-01

    Full Text Available Por meio da articulação entre história social da cultura e do trabalho, o artigo discute o processo de fortalecimento da "cultura mulata" promovido por intelectuais afro-americanos das classes alta e média no período pós-emancipação. Ao analisar o "problema da liberdade" com base nos referenciais de beleza construídos por esses "novos negros", trago à cena textos e fotografias coletados das revistas The Half Century Magazine, de Boston, e The Crisis: a record of the darker races, de Nova York. Os magazines e outros títulos evidenciam que, entre 1900 e 1930, o sistema de segregação intrarracial baseado na tonalidade da pele ("colorismo" trouxe como consequência a "pigmentocracia". Ou seja, o privilégio da pele clara (light skin em relação à escura (dark skin no tocante às oportunidades de mobilidade social.

  19. Caminhos de um mal-estar de civilização: reflexões intelectuais norte-americanas para pensar a democracia e o negro no Brasil

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    Elizabeth Cancelli

    2010-05-01

    Full Text Available

    Este trabalho tem como objetivo buscar eixos de reflexão desenvolvidos nos Estados Unidos e que foram importantes para repensar a questão da democracia e da cultura no Brasil, especialmente no que diz respeito à inclusão social do negro e à construção de uma identidade brasileira. Assim, as releituras da herança da escravidão verificadas no Sul norte-americano nas primeiras décadas do século XX e o encorajamento para a redefinição da democracia, ocorridos no auge da guerra fria e da cultural war, serão contemplados para a recuperação de vertentes importantes do pensamento brasileiro e sua inserção nos debates em torno desse “mal-estar de civilização”.

  20. The Marianas-San Marcos vein system: characteristics of a shallow low sulfidation epithermal Au-Ag deposit in the Cerro Negro district, Deseado Massif, Patagonia, Argentina

    Science.gov (United States)

    Vidal, Conrado Permuy; Guido, Diego M.; Jovic, Sebastián M.; Bodnar, Robert J.; Moncada, Daniel; Melgarejo, Joan Carles; Hames, Willis

    2016-08-01

    The Cerro Negro district, within the Argentinian Deseado Massif province, has become one of the most significant recent epithermal discoveries, with estimated reserves plus resources of ˜6.7 Moz Au equivalent. The Marianas-San Marcos vein system contains about 70 % of the Au-Ag resources in the district. Mineralization consists of Upper Jurassic (155 Ma) epithermal Au- and Ag-rich veins of low to intermediate sulfidation style, hosted in and genetically related to Jurassic intermediate composition volcanic rocks (159-156 Ma). Veins have a complex infill history, represented by ten stages with clear crosscutting relationships that can be summarized in four main episodes: a low volume, metal-rich initial episode (E1), an extended banded quartz episode with minor mineralization (E2), a barren waning stage episode (E3), and a silver-rich late tectonic-hydrothermal episode (E4). The first three episodes are interpreted to have formed at the same time and probably from fluids of similar composition: a 290-230 °C fluid dominated by meteoric and volcanic waters (-3‰ to -0‰ δ18Owater), with geothermal features. The last tectonic-hydrothermal mineralization episode (E4), interpreted to have formed at lower temperatures, could be related to this late tectonic and hydrothermal activity.

  1. Análisis preliminar de estado secretor ABO (H en la comunidad mapuche de Anecon Grande (Río Negro

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    Perosino, María C.

    2005-01-01

    Full Text Available El objetivo de la presente investigación fue analizar el Sistema Secretor ABO(H en muestras salivares de 51 individuos (21 varones y 30 mujeres de la comunidad mapuche de Anecón Grande (Prov. de Río Negro. Para su determinación se utilizó la técnica de Inhibición de la Aglutinación cuyo fundamento consiste en que las sustancias solubles ABH son capaces de neutralizar a los anticuerpos específicos. La determinación de la secreción salival ABO(H mostró que el 100% (47 personas de grupo ABO*0 y 4 de grupo ABO*A de la muestra corresponde a secretores (Se _ . Estos resultados concuerdan con lo esperado para poblaciones amerindias y con la información genética y biodemográfica previamente obtenida. Nuestros datos se comparan con los hallados en otras poblaciones aborígenes argentinas y sudamericanas.

  2. Going to College

    Science.gov (United States)

    ... chocolate cake. Many college campuses have lots of fast-food restaurants within easy reach of dorms or classes. ... re stressed, means you are overriding your body's natural signals. This tends to lead to more chaotic ...

  3. American College of Gastroenterology

    Science.gov (United States)

    ... journal published to provide an opportunity to share interesting case reports. Edited by GI fellows, it is ... AmCollegeGastro Events November 9 Advances in Inflammatory Bowel Diseases – AIBD 2017 November 9 - 11, 2017 Walt Disney ...

  4. Getting Exercise in College

    Science.gov (United States)

    ... in college? What Does My Body Need? The importance of exercise is nothing new. Thomas Jefferson once ... commitment to regular activity. According to the 2008 Physical activity guidelines, kids and teens should do 60 minutes ...

  5. Tractor Safety. Unit A-9.

    Science.gov (United States)

    Luft, Vernon D.; Backlund, Paul

    This document is a teacher's guide for a unit in tractor and machinery safety for college freshmen. It is intended to be used for 10 hours of instruction for freshmen who are intending to work on or around machinery. Safety hazards directly and indirectly related to many types of machinery are covered in addition to tractors. The objectives of the…

  6. Recordando África al inventar Uruguay: sociedades de negros en el carnaval de Montevideo, 1865-1930

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    George Reid Andrews

    2007-04-01

    Full Text Available B.A. in History, Dartmouth College; M. A. in History, University of Wisconsin-Madison; Ph. D. in History, University of Wisconsin-Madison. Actual profesor del Departamento de Historia de la Universidad de Pittsburgh, EE.UU. Correo electrónico: reid1@pitt.edu. Texto publicado originalmente en el HispanicAmerican Historical Review, 2007. La investigación para el presente ensayo fue fruto del apoyo de la beca Rockefeller en Humanidades, otorgada por el Centro de Estudios Interdisciplinarios Latinoamericanos de la Universidad de La República (Montevideo, que también fue subvencionado por el Programa de Investigación en el Exterior del Centro de Estudios Internacionales de la Universidad de Pittsburgh. Mi trabajo en Montevideo fue facilitado enormemente por tres asistentes maravillosas: Anne Garland Neel, Lindsey Ruprecht y Christine Waller. Mis agradecimientos a John Chasteen, Barbara Weinstein y dos lectores anónimos de la HAHR por sus constructivos comentarios en versiones iniciales del presente ensayo.

  7. A Comparison of Web-Based and Paper-and-Pencil Homework on Student Performance in College Algebra

    Science.gov (United States)

    Hauk, Shandy; Powers, Robert A.; Segalla, Angelo

    2015-01-01

    College algebra fulfills general education requirements at many colleges in the United States. The study reported here investigated differences in mathematics achievement between undergraduates in college algebra classes using one of two homework methods: "WeBWorK," an open-source system for web-based homework, or traditional…

  8. Estimating the Economic Impact of College Student Migration from Illinois. Policy Research Report: IERC 2006-1

    Science.gov (United States)

    Smith, Ryan; Wall, Andrew F.

    2006-01-01

    Each fall, hundreds of thousands of new students enroll in college. They bring with them high aspirations and hopes for a future filled with the rewards of educational attainment. Amidst the individual stories of college transition is a story of the migration pattern of college students in the United States. In this report, the authors estimate…

  9. An Initial Examination of Facebook as a Source of Memorable Messages for First-Year College Students

    Science.gov (United States)

    Russell, Jessica; Nazione, Samantha; Smith, Sandi

    2012-01-01

    This study investigated a set of messages on a university group's Facebook page intended as advice for first-year college students. Investigators coded 108 different units of advice into three overarching categories focused on academics, the transition to college life, and comprehension of the college campus. Messages transmitted were similar in…

  10. Extracurricular associations and college enrollment.

    Science.gov (United States)

    Gibbs, Benjamin G; Erickson, Lance D; Dufur, Mikaela J; Miles, Aaron

    2015-03-01

    There is consistent evidence that student involvement in extracurricular activities (EAs) is associated with numerous academic benefits, yet understanding how peer associations within EAs might influence this link is not well understood. Using Add Health's comprehensive data on EA participation across 80 schools in the United States, we develop a novel measure of peer associations within EA activities. We find that EA participation with high achieving peers has a nontrivial link to college enrollment, even after considering individual, peer, and school-level factors. This suggests that school policies aimed at encouraging student exposure to high achieving peers in EAs could have an important impact on a student's later educational outcomes. Copyright © 2014 Elsevier Inc. All rights reserved.

  11. Ethical issues in the response to Ebola virus disease in United States emergency departments: a position paper of the American College of Emergency Physicians, the Emergency Nurses Association, and the Society for Academic Emergency Medicine.

    Science.gov (United States)

    Venkat, Arvind; Asher, Shellie L; Wolf, Lisa; Geiderman, Joel M; Marco, Catherine A; McGreevy, Jolion; Derse, Arthur R; Otten, Edward J; Jesus, John E; Kreitzer, Natalie P; Escalante, Monica; Levine, Adam C

    2015-05-01

    The 2014 outbreak of Ebola virus disease (EVD) in West Africa has presented a significant public health crisis to the international health community and challenged U.S. emergency departments (EDs) to prepare for patients with a disease of exceeding rarity in developed nations. With the presentation of patients with Ebola to U.S. acute care facilities, ethical questions have been raised in both the press and medical literature as to how U.S. EDs, emergency physicians (EPs), emergency nurses, and other stakeholders in the health care system should approach the current epidemic and its potential for spread in the domestic environment. To address these concerns, the American College of Emergency Physicians, the Emergency Nurses Association, and the Society for Academic Emergency Medicine developed this joint position paper to provide guidance to U.S. EPs, emergency nurses, and other stakeholders in the health care system on how to approach the ethical dilemmas posed by the outbreak of EVD. This paper will address areas of immediate and potential ethical concern to U.S. EDs in how they approach preparation for and management of potential patients with EVD. © 2015 by the Society for Academic Emergency Medicine.

  12. Mentorship through advisory colleges.

    Science.gov (United States)

    Murr, Andrew H; Miller, Carol; Papadakis, Maxine

    2002-11-01

    Medical students face pressures ranging from the need to create a social network to learning vast amounts of scientific material. Students often feel isolated in this system and lack mentorship. In order to counteract feelings of bureaucratic anonymity and isolation, the University of California San Francisco has created an advisory college to foster the professional and personal growth and well being of students. UCSF has developed a formal structure to advise medical students. A selection committee, chaired by the associate dean of student affairs, appointed five faculty mentors to head advisory colleges. These five colleges serve as the advising and well-being infrastructure for the students. Mentors were chosen from a balanced range of clinical disciplines, both primary and specialty. The disciplines are obstetrics-gynecology, otolaryngology/head and neck surgery, medicine, pediatrics, and psychiatry. The mentors have demonstrated excellence in advising and counseling of students. Mentors meet individually at the beginning of the academic year with incoming first-year and second-year students. They then have bimonthly meetings with eight to ten students within each college throughout the academic year. Curricula for these group sessions include well-being discussions and coping techniques, sessions on the hidden and informal curriculum of professionalism, and discussions on career choices and strategies. For third-year students, advisory college meetings are scheduled during intersessions, which are weeklong courses that occur between the eight-week clerkship blocks. Mentors are available throughout the year to meet with students on an as-needed basis, and advisory colleges may hold group social activities. The dean's office supports each mentor with 20% salary and provides administrative support for the group college activities. Historically, UCSF students feel they receive an excellent education and appropriate job opportunities, but they do not feel they

  13. Unmarried parents in college.

    Science.gov (United States)

    Goldrick-Rab, Sara; Sorensen, Kia

    2010-01-01

    Noting that access to higher education has expanded dramatically in the past several decades, Sara Goldrick-Rab and Kia Sorensen focus on how unmarried parents fare once they enter college. Contrary to the expectation that access to college consistently promotes family stability and economic security, the authors argue that deficiencies in current policy lead college attendance to have adverse consequences for some families headed by unmarried parents. Although rates of college attendance have increased substantially among unmarried parents, their college completion rates are low. One explanation is inadequate academic preparation. Another is financial constraints, which can force unmarried students to interrupt their studies or increase their work hours, both of which compromise the quality of their educational experiences and the outcomes for their children. The authors point out that although many public programs offer support to unmarried parents attending college, the support is neither well coordinated nor easily accessed. Over the past three decades, loans have increasingly replaced grants as the most common form of federal and state financial aid. Confusion about what is available leads many low-income students to the two most "straightforward" sources of income--loans and work, both of which involve significant costs and can operate at cross-purposes with public forms of support. Too much work can lead to reductions in public benefits, and earnings do not always replace the lost income. A growing body of experimental evidence shows that providing social, financial, and academic supports to vulnerable community college students can improve achievement and attainment. Contextualized learning programs, for example, have enabled participants not only to move on from basic skills to credit-bearing coursework, but also to complete credits, earn certificates, and make gains on basic skills tests. Another successful initiative provided low-performing students with

  14. Pre-college education

    Science.gov (United States)

    Stein, Sylvia

    1990-01-01

    Pre-college education efforts are many and varied, involving the teachers, students, parents, museums, and youth groups. However, it is necessary to reach out to school administration at all levels if teachers are to be innovative in their approaches. This introductory meeting clearly indicated that more interaction between the participants would be profitable. It is clear that the science pipeline leading from kindergarten to college entry needs to be filled with students. What is not clear is how we can do it. The plethora of projects being pursued by the NASA Space Grant College Fellowship (NSGC) programs to accomplish that goal are heartening and exciting. However, this large gamut of programs may also indicate how new we are in this game and how little anyone knows about creating a pre-college interest in science and engineering. In a way, it resembles the situation of the common cold--there is no known cure yet, so there are many so-called remedies. Unfortunately, the time we had together was entirely too short to address the evaluation situation, so that we can in the future zero in on the most effective approaches. This report is a summary of the many ways the different NSGC' s are approaching pre-college education and a list of suggestions.

  15. Cotas para negros no Ensino Superior e formas de classificação racial Quotas for blacks in higher education and forms of racial classification

    Directory of Open Access Journals (Sweden)

    André Augusto Brandão

    2007-04-01

    Full Text Available Este artigo apresenta e discute dados referentes à aplicação de um questionário voltado para variáveis de classificação racial e opinião sobre a política de cotas para negros em uma amostra de 476 alunos do último ano do Ensino Médio da rede pública de um município periférico da região metropolitana do Rio de Janeiro. Buscamos compreender os elementos que informam as classificações de cor ou raça, bem como o posicionamento que esses alunos tomavam frente à política de cotas que poderia beneficiá-los no acesso a uma universidade pública. Deve-se ressaltar que os alunos entrevistados estariam em breve frente à possibilidade de disputar uma vaga no Ensino Superior em um vestibular com cotas raciais numa universidade pública que mantém um campus no próprio município onde estudam e residem. Essa problemática e esse tipo de investigação nos parecem fundamentais na atualidade, pois as cotas para negros que vêm sendo implantadas desde 2003 em várias instituições de Ensino Superior têm sofrido críticas e atravessado controvérsias jurídicas também por conta das formas de classificação propostas. Na pesquisa realizada, foi possível avançar na discussão de como as opções de classificação racial até o momento utilizadas nessas políticas se relacionam com os formatos de auto-identificação e de identificação do outro, comumente presentes no cotidiano das escolas pesquisadas, bem como verificar como a idéia de cota racial é avaliada pelos seus possíveis beneficiários.This article presents and discusses data obtained with the application of a questionnaire focused on variables for racial classification and opinion about the policy of quotas for blacks; the questionnaire was applied to a sample of 476 pupils from the last year of secondary education of the public school system of a peripheral town in the Metropolitan Area of Rio de Janeiro. We have tried to understand the elements that shape the

  16. Calcite raft geochemistry as a hydrological proxy for Holocene aquifer conditions in Hoyo Negro and Ich Balam (Sac Actun Cave System), Quintana Roo, Mexico

    Science.gov (United States)

    Kovacs, Shawn E.; Reinhardt, Eduard G.; Chatters, James C.; Rissolo, Dominique; Schwarcz, Henry P.; Collins, Shawn V.; Kim, Sang-Tae; Nava Blank, Alberto; Luna Erreguerena, Pilar

    2017-11-01

    Two cores from calcite rafts deposits located in Cenote Ich Balam and Hoyo Negro were dated and analyzed for 87Sr/86Sr, δ18O, δ13C, Sr/Ca and Cl/Ca. The geochemical records show changing aquifer salinity spanning the last ∼ 8.5 cal kyrs BP and interrelationships with Holocene climate trends (wet and dry periods). During the wet mid-Holocene, the salinity of the meteoric Water Mass (WM; at 7.8-8.3 cal kyrs BP) was relatively high at 1.5-2.7 ppt and then became less saline (1.0-1.5 ppt) during the last ∼ 7000 yrs as climate became progressively drier. High salinity of the meteoric WM during the wet mid-Holocene is attributed to increased turbulent mixing between the meteoric and underlying marine WM. Increased precipitation, in terms of amount, frequency, and intensity (e.g. hurricanes) causes higher flow of meteoric water towards the coast and mixing at the halocline, a phenomenon recorded with recent instrumental monitoring of the aquifer. Conversely, during dry periods reduced precipitation and flow in the meteoric WM would result in lower salinity. Karst properties and Holocene sea-level rise also seem to have an effect on the aquifer. When the regionally extensive network of shallow cave passages (∼ 10-12 m water depth) are flooded at ∼ 8000 cal yrs BP, there is a rapid shift in salinity. This study demonstrates that calcite raft deposits can be used as paleo-environmental recorders documenting the effects of sea level and climate change on aquifer condition.

  17. The “Criollo Negro de la Costa Ecuatoriana” pigs: effect of sex and rearing system on performance, carcass and meat traits

    Energy Technology Data Exchange (ETDEWEB)

    González, M.A.; Peláez, F.R.; Martínez, A.L.; Avilés, C.; Peña, F.

    2016-11-01

    The objective of this study was to evaluate the effect of rearing system (confinement, C vs semi-confinement, SC) and sex (barrows vs females) on growth performance, carcass traits and meat quality of “Criollo negro de la costa ecuatoriana” pigs. A total of 32 pigs, 16 barrows and 16 gilts were used. The average daily gain (0.30 kg/day vs 0.22 kg/day), slaughter weight (51.4 kg vs 43.1 kg), morphometric parameters and weights for the most valuable meat cuts were higher in C pigs than in SC pigs, whereas hot and cold carcass yields were higher in SC pigs than in C pigs. The loin and sirloin percentages from C pigs were lower and higher compared with those SC pigs, respectively. Carcass of C pigs showed higher percentage of fat and lower percentage of lean and bone that SC pigs. The rearing system had scarce effects on meat quality traits and mineral composition. Meat from C pigs showed lower scores for color, brightness, and unctuousness, and higher for metallist taste, juiciness and persistence of flavor than SC pigs. Few sensory attributes of cooking chops were affected by sex. Metallist taste was higher in barrows, while brightness and lard flavor were higher in females. It can be concluded that the rearing system had a significant effect on most of the productive and carcass traits, whereas its effect was limited on the meat traits. Sex had little influence on most of the traits studied. (Author)

  18. MOVILIDAD ESPACIAL Y HORTICULTURA EN EL VALLE MEDIO DE RÍO NEGRO: LA CONSTRUCCIÓN DE UN TERRITORIO MIGRATORIO

    Directory of Open Access Journals (Sweden)

    Flavio D. Abarzúa

    2014-12-01

    Full Text Available This paper aims to characterize the Middle Valley of Río Negro like a horticultural land and show the processes of spatial mobility that allow considered as an migratory territory. This will present the description of two producer’s trajectories Bolivian who work in horticultural production in this productive space. The study area has developed in the last decades a considerable expansion of horticultural production, currently concentrating 48% of the province's surface devoted for this type of production. The cultivation of tomato for industry, onion for the domestic market and for export, and the vegetables for fresh consumption aimed at regional markets and local fairs are the main options in this type of production. In this dynamic activity, migrant families, mainly of Bolivian, have been a central component since they are the ones that mostly involved in the cultivation and marketing of horticultural products. In the life experiences of these migrants the "migratory habitus” intersect, is the habit of "leaves" their homes to different places, and the possibility of building their migratory territory. In this sense, migratory, work and productive trajectories of Lourdes and David presented here allows us to approach the analysis of these processes. This work is addressed from an interdisciplinary approach in which the contributions of anthropology and sociology add to geography, and allow closer to understanding the complexity that characterizes migration. Thus, the concepts of territory, migratory territory, spatial mobility and trajectories are very important elements in the organization or this paper. This work is mainly based on a qualitative design, in which the case studies and biographical accounts are established as key pieces of research. In this sense, observations, records and interviews while within the study area, combined with secondary data coming from the systematization of population censuses, agricultural censuses and

  19. The density and biomass of mesozooplankton and ichthyoplankton in the Negro and the Amazon Rivers during the rainy season: the ecological importance of the confluence boundary

    Directory of Open Access Journals (Sweden)

    Ryota Nakajima

    2017-05-01

    Full Text Available The boundary zone between two different hydrological regimes is often a biologically enriched environment with distinct planktonic communities. In the center of the Amazon River basin, muddy white water of the Amazon River meets with black water of the Negro River, creating a conspicuous visible boundary spanning over 10 km along the Amazon River. Here, we tested the hypothesis that the confluence boundary between the white and black water rivers concentrates prey and is used as a feeding habitat for consumers by investigating the density, biomass and distribution of mesozooplankton and ichthyoplankton communities across the two rivers during the rainy season. Our results show that mean mesozooplankton density (2,730 inds. m−3 and biomass (4.8 mg m−3 were higher in the black-water river compared to the white-water river (959 inds. m−3; 2.4 mg m−3; however an exceptionally high mesozooplankton density was not observed in the confluence boundary. Nonetheless we found the highest density of ichthyoplankton in the confluence boundary (9.7 inds. m−3, being up to 9-fold higher than in adjacent rivers. The confluence between white and black waters is sandwiched by both environments with low (white water and high (black water zooplankton concentrations and by both environments with low (white water and high (black water predation pressures for fish larvae, and may function as a boundary layer that offers benefits of both high prey concentrations and low predation risk. This forms a plausible explanation for the high density of ichthyoplankton in the confluence zone of black and white water rivers.

  20. The density and biomass of mesozooplankton and ichthyoplankton in the Negro and the Amazon Rivers during the rainy season: the ecological importance of the confluence boundary.

    Science.gov (United States)

    Nakajima, Ryota; Rimachi, Elvis V; Santos-Silva, Edinaldo N; Calixto, Laura S F; Leite, Rosseval G; Khen, Adi; Yamane, Tetsuo; Mazeroll, Anthony I; Inuma, Jomber C; Utumi, Erika Y K; Tanaka, Akira

    2017-01-01

    The boundary zone between two different hydrological regimes is often a biologically enriched environment with distinct planktonic communities. In the center of the Amazon River basin, muddy white water of the Amazon River meets with black water of the Negro River, creating a conspicuous visible boundary spanning over 10 km along the Amazon River. Here, we tested the hypothesis that the confluence boundary between the white and black water rivers concentrates prey and is used as a feeding habitat for consumers by investigating the density, biomass and distribution of mesozooplankton and ichthyoplankton communities across the two rivers during the rainy season. Our results show that mean mesozooplankton density (2,730 inds. m -3 ) and biomass (4.8 mg m -3 ) were higher in the black-water river compared to the white-water river (959 inds. m -3 ; 2.4 mg m -3 ); however an exceptionally high mesozooplankton density was not observed in the confluence boundary. Nonetheless we found the highest density of ichthyoplankton in the confluence boundary (9.7 inds. m -3 ), being up to 9-fold higher than in adjacent rivers. The confluence between white and black waters is sandwiched by both environments with low (white water) and high (black water) zooplankton concentrations and by both environments with low (white water) and high (black water) predation pressures for fish larvae, and may function as a boundary layer that offers benefits of both high prey concentrations and low predation risk. This forms a plausible explanation for the high density of ichthyoplankton in the confluence zone of black and white water rivers.

  1. Screening of polyhydroxyalkanoate-producing bacteria and PhaC-encoding genes in two hypersaline microbial mats from Guerrero Negro, Baja California Sur, Mexico

    Directory of Open Access Journals (Sweden)

    Carolina A. Martínez-Gutiérrez

    2018-05-01

    Full Text Available Hypersaline microbial mats develop through seasonal and diel fluctuations, as well as under several physicochemical variables. Hence, resident microorganisms commonly employ strategies such as the synthesis of polyhydroxyalkanoates (PHAs in order to resist changing and stressful conditions. However, the knowledge of bacterial PHA production in hypersaline microbial mats has been limited to date, particularly in regard to medium-chain length PHAs (mcl-PHAs, which have biotechnological applications due to their plastic properties. The aim of this study was to obtain evidence for PHA production in two hypersaline microbial mats of Guerrero Negro, Mexico by searching for PHA granules and PHA synthase genes in isolated bacterial strains and environmental samples. Six PHA-producing strains were identified by 16S rRNA gene sequencing; three of them corresponded to a Halomonas sp. In addition, Paracoccus sp., Planomicrobium sp. and Staphylococcus sp. were also identified as PHA producers. Presumptive PHA granules and PHA synthases genes were detected in both sampling sites. Moreover, phylogenetic analysis showed that most of the phylotypes were distantly related to putative PhaC synthases class I sequences belonging to members of the classes Alphaproteobacteria and Gammaproteobacteria distributed within eight families, with higher abundances corresponding mainly to Rhodobacteraceae and Rhodospirillaceae. This analysis also showed that PhaC synthases class II sequences were closely related to those of Pseudomonas putida, suggesting the presence of this group, which is probably involved in the production of mcl-PHA in the mats. According to our state of knowledge, this study reports for the first time the occurrence of phaC and phaC1 sequences in hypersaline microbial mats, suggesting that these ecosystems may be a novel source for the isolation of short- and medium-chain length PHA producers.

  2. UHPLC-ESI-ORBITRAP-MS analysis of the native Mapuche medicinal plant palo negro (Leptocarpha rivularis DC. - Asteraceae) and evaluation of its antioxidant and cholinesterase inhibitory properties.

    Science.gov (United States)

    Jiménez-González, Andrea; Quispe, Cristina; Bórquez, Jorge; Sepúlveda, Beatriz; Riveros, Felipe; Areche, Carlos; Nagles, Edgar; García-Beltrán, Olimpo; Simirgiotis, Mario J

    2018-12-01

    UHPLC/ESI/MS identification of organic compounds is the first step in the majority of screening techniques for the characterization of biologically active metabolites in natural sources. This paper describes a method for the fast identification and characterisation of secondary metabolites in Leptocarpha rivularis DC. (Palo negro) extracts by HPLC/UV (DAD)-Mass Spectrometry (HPLC/MS). The plant is used for the treatment of several diseases since pre-hispanic Mapuche times. Thirty-seven compounds were detected in the aqueous edible extract for the first time including 4 sesquiterpenes, 10 flavonoids, 9 oxylipins, 2 organic acids, and 11 phenolic acids. In addition, phenolic content antioxidant and cholinesterase inhibitory activities were measured for the first time using the edible infusion. The total polyphenol content of the infusion was 230.76 ± 2.5 mmol GAE/kg dry weight, while the antioxidant activity was 176.51 ± 28.84; 195.28 ± 4.83; and 223.92 ± 2.95 mmol TE/kg dry weight, for the DPPH, ABTS, and FRAP assays, respectively. The cholinesterase inhibitory activity was 7.38 ± 0.03 and 5.74 ± 0.06 mmol GALAE/kg, for the inhibition of acetylcholinesterase AChE and BChE, respectively, showing that this plant is a candidate for the isolation of compounds that can be useful for the treatment of neurodegenerative diseases. Furthermore, this plant could serve also as a raw material for the production of dietary supplements, due to its content of polyphenolic compounds.

  3. Variabilidad morfológica craneofacial en el valle inferior del Rio Negro: implicaciones para el análisis de la dinámica poblacional en nordpatagonia y en el sudeste de la Región Pampeana

    Directory of Open Access Journals (Sweden)

    Pérez, Sergio Iván

    2001-01-01

    Full Text Available Recientemente se propuso, en base a distintas líneas de evidencia arqueológica y bioarqueológica, que los grupos humanos que habitaron el Sudeste de la Región Pampeana en distintos momentos del Holoceno fueron poblaciones locales pertenecientes a metapoblaciones alocrónicas, con un rango de distribución geográfica desconocido, pero que probablemente abarcó regiones vecinas como el norte de la Pampa Húmeda, Pampa Seca, Sierras Centrales y el norte de Patagonia. Con el fin de poner a prueba tales hipótesis, se diseñó una investigación orientada a establecer, en cada caso, el grado de similitud morfológica a nivel craneofacial (tamaño y forma, mediante análisis discriminante aplicado a variables Howellianas. En una primera etapa se analizaron muestras masculinas y femeninas provenientes del valle inferior del Río Negro (colección del Museo de La Plata; n= 133, de cronología desconocida, y muestras diacrónicas del Sudeste de la Región Pampeana, con cronología determinada radiocarbónicamente (n= 36. Los resultados preliminares muestran que: a gran parte de la variabilidad registrada en la muestra de Río Negro tiene su correlato en la registrada en la Región Pampeana, lo que sugiere una estrecha relación biológica entre los habitantes prehispánicos de estas dos regiones, y b la muestra del valle del Río Negro está probablemente integrada por individuos correspondientes a distintos momentos del Holoceno.

  4. Patrones de uso de sitios naturales y artificiales por Branta bernicla nigricans (Anseriformes: Anatidae en Guerrero Negro, Baja California Sur, México Habitat use patterns of the Black Brant Branta bernicla nigricans (Anseriformes: Anatidae in natural and artificial areas of Guerrero Negro, Baja California Sur, Mexico

    Directory of Open Access Journals (Sweden)

    Israel Martínez Cedillo

    2013-06-01

    Full Text Available En el complejo lagunar Guerrero Negro-Ojo de Liebre-Exportadora de Sal inverna el 31% de la población de Ganso de collar (Branta bernicla nigricans que utiliza México (31 000 aves en promedio. Nosotros realizamos censos de punto mensuales (noviembre 2006 a abril 2007 en tres sitios para determinar: (1 los efectos de la época del año y del sitio en la estructura poblacional (grupos de edad y (2 la relación del nivel de marea con la abundan- cia y la proporción de aves alimentándose. La proporción general de adultos fue de 0.68. Esta proporción fue mayor en invierno que en primavera. Por sitio en LGN y ESSA disminuyó y en LOL se mantuvo constante. El incremento de aves inmaduras entre el invierno y la primavera se relaciona con su partida primaveral tardía. La alimentación del Ganso de collar en LOL (el sitio de mayor abundancia fue independiente del nivel de marea, lo que se puede relacionar con dos conductas: (1 que las aves se muevan a lo largo de la laguna, para aprovechar el desfase, de hasta cuatro horas en el nivel de marea o (2 que modifiquen sus estrategias de alimentación, para consumir el pasto flotante.The Black Brant is a common inhabitant of the Western Artic American tundra, which migrates to Southern Pacific coasts during the winter season. Approximately, 31 000 birds (31% constitute the Mexican population of Brants at Guerrero Negro, Ojo de Liebre, and Exportadora de Sal lagoon complex; nevertheless, there is little information about the distribution patterns and zone usage. At Guerrero Negro Lagoon (GNL, Ojo de Liebre Lagoon (OLL, both natural sites, and at Exportadora de Sal (ESSA, artificial site we determined by monthly censuses (from November 2006 to April 2007, 08:00-16:00h and observed: (1 season and site effects on population structure (age groups, and (2 the tide level relationship with the abundance and proportion of feeding birds. Within a total of 150 observation hours and 98 birds, our results showed a

  5. Protecting Colleges and Students: Community College Strategies to Prevent Default

    Science.gov (United States)

    McKibben, Bryce; La Rocque, Matthew; Cochrane, Debbie

    2014-01-01

    Student loan default, defined as federal loan borrowers' failure to make any payments for at least 270 days, is an issue of increasing importance to community colleges and their students. This report takes a unique look at student loan default at nine community colleges across the nation, and how those colleges are working to help students avoid…

  6. College and Community in Partnership: The Furniture College at Letterfrack.

    Science.gov (United States)

    Rosenfeld, Stuart A.

    2001-01-01

    A community economic development organization in rural Ireland partnered with a technical college to build a college to teach furniture design and manufacturing, with an emphasis on entrepreneurship and new production technologies. The college has been successful in attracting good students and helping them find employment. A research and…

  7. El proceso de construcción de una red socio técnica regional. El programa de control de carpocapsa en la fruticultura de las provincias de Río Negro y Neuquén, Argentina.

    OpenAIRE

    VILLARREAL, PATRICIA LILIANA

    2014-01-01

    La producción frutícola de las provincias de Río Negro y Neuquén tiene como uno de sus principales destinos la exportación a mercados europeos y del Mercosur y otros en menor medida. En tal sentido, los productos están sujetos a las exigencias de sanidad y calidad de los países importadores -orientados fundamentalmente por los requerimientos de las grandes cadenas de distribución- de manera que los procesos de certificación se intensifican cada temporada. Entre los princip...

  8. Antiescravismo e epidemia: "O tráfico dos negros considerado como a causa da febre amarela", de Mathieu François Maxime Audouard, e o Rio de Janeiro em 1850 Antislavery and epidemic Mathieu François Maxime Audouard's "O tráfico dos negros considerado como a causa da febre amarela" and the city of Rio de Janeiro in 1850

    Directory of Open Access Journals (Sweden)

    Kaori Kodama

    2009-06-01

    Full Text Available O artigo "O tráfico dos negros considerado como a causa da febre amarela", de Mathieu François Maxime Audouard (1776-1856, foi publicado em 1850 no jornal O Philantropo, periódico de propaganda contra o tráfico que circulou no Rio de Janeiro entre 1849 e 1852, e contava com diversos médicos entre seus membros. O texto, traduzido do original do médico francês e publicado no contexto da epidemia de febre amarela na cidade, oferece elementos para refletir sobre a atuação dos médicos brasileiros na questão da escravidão, no momento em que era promulgada a cessação do tráfico no país.The article "O tráfico de negros considerado como a causa da febre amarela" [The Negro slave trade considered as the cause of yellow fever] , by French physician Mathieu François Maxime Audouard (1776-1856, was published in 1850 in the newspaper O Philantropo, an organ of anti-slave trade propaganda that circulated in Rio de Janeiro from 1849 to 1852, with a number of physicians as members. Translated from the original and published during the yellow fever epidemic that hit Rio de Janeiro, the text affords an opportunity to reflect on the positions about slavery that were held by Brazilian physicians at the time the law against the slave trade was promulgated in Brazil.

  9. Índices bióticos para avaliação da qualidade ambiental em trechos do rio Correntoso, Pantanal do Negro, Estado do Mato Grosso do Sul, Brasil = Biotic indexes for the evaluation of environmental quality in stretches of the Correntoso river, Pantanal do Negro, Mato Grosso do Sul State, Brazil

    Directory of Open Access Journals (Sweden)

    Fábio Henrique da Silva

    2011-07-01

    Full Text Available Este trabalho teve como objetivo pesquisar a estrutura da comunidade de insetos aquaticos, utilizando esta comunidade como indicadora da qualidade ambiental de um trecho do rio Correntoso, Pantanal do Negro, Mato Grosso do Sul, Brasil. Foram realizadas seis campanhas de coleta em diferentes periodos sazonais: vazante, seca e cheia. Os organismos foram coletados utilizando rede D com malha de 300 ƒÝm eesforco amostral de cinco lances de rede nas raizes dos bancos de macrofitas. Foram comparados tres ambientes (aberto, intermediario e fechado, por juncao dos dados obtidos de seis sitios de coleta. Foi analisada a riqueza, abundancia absoluta e relativa das familias de insetos amostrados e a avaliacao da qualidade da agua usando o indiceBMWP, indice BMWP-ASPT, indice IBF e indice de diversidade de Shannon-Wienner, com log2. Foram registradas 60 familias pertencentes a 12 ordens da Classe Insecta, totalizando 19.773 individuos coletados. Entre os indices aplicados, o indice BMWP foi o que melhor representou as condicoes do ambiente estudado.This work aimed to research the aquatic insect community structure using this community as a bioindicator of the environmental quality in a stretch of the Correntoso river, in Pantanal do Negro, Mato Grosso do Sul, Brazil. Six collections were taken in different seasonal periods; ebb, dry and wet. The organisms were collected using a 300 ƒÝm mesh D net sweeping five times through the roots of macrophyte banks at each sample. Three environments were compared (open, intermediary, closed by adding the information from six collection sites. Family richness, absolute and relative abundance ofinsect samples and an evaluation of water quality were analyzed by using the BMWP index, BMWP-ASPT index, IBF index and Shannon diversity index, with log2. A total of 60 families from 12 orders of Insecta Class were recorded, totaling 19,773 individuals. Among the indexes applied, the BMWP index was the one that best

  10. A LA SOMBRA DEL ESTADO: COMUNALIZACIÓN INDÍGENA EN PARAJES DE LA PRE CORDILLERA DE RÍO NEGRO, ARGENTINA / In the shadow of the state: Indian communalization in sites from the Rio Negro province pre Cordillera, Argentina

    Directory of Open Access Journals (Sweden)

    Lorena Cañuqueo

    2015-12-01

    Full Text Available Nos proponemos analizar un proceso de comunalización situado en parajes rurales de la cuenca del arroyo Comallo, provincia de Río Negro. En agosto de 2011 se conformó formalmente allí la comunidad mapuche Newen Ñuke Mapu que pasó a integrarse a las comunidades denominadas “nuevas” en la provincia, por contraste con aquellas consideradas “tradicionales”. Nuestro argumento es que esa novedad no es tal, sino que subyace un proceso de comunalización de larga duración que ha estado en permanente disputa con políticas estatales atomizadoras. En este sentido, se trata de un colectivo que se ha desarrollado a la sombra del estado argentino. Comenzaremos con un recorrido histórico en función de ubicar este caso en el proceso de incorporación del pueblo mapuche al estado nacional. A continuación analizamos el proceso de comunalización en tres escenarios históricos anclados en crisis de diferente tipo. 1 El presente que retoma la conformación de la comunidad mapuche. A partir de este aparecen como instancias de referencia consideradas fundantes de lo colectivo dos momentos históricos anteriores. 2 1984, periodo en el que se conforman las cooperativas laneras, entre otras formas de organización indígena. 3 1930, crisis que marcó el avance de la propiedad privada en la zona y que implicó estrategias de visibilización y demanda dirigidas al estado.  AbstractIn this article we intend to analyze a process of communalization located in the rural areas of the province of Río Negro. In August 2011 the Mapuche community Newen Ñuke Mapu came formally into existence. Since then on it became one more of the “new” indigenous communities in contrast to those acknowledge as “traditional”. Our argument is that there is no such novelty but there is an underlying long term process of communalization that has been in constant dispute with state policies. In this sense, we describe it as a grouping that has developed at the shadow of

  11. A new leech species of Helobdella (Hirudinea, Glossiphoniidae from San Carlos de Bariloche, Río Negro, Argentina Una especie nueva de sanguijuela del género Helobdella (Hirudinea, Glossiphoniidae de San Carlos de Bariloche, Río Negro, Argentina

    Directory of Open Access Journals (Sweden)

    Bettina S. Gullo

    2009-04-01

    Full Text Available A new freshwater leech species Helobdella fantasmae n. sp. is described. This description is based on the examination of 12 specimens collected in Laguna Fantasma, Bariloche (41° 05'S 71° 28'W, during December 2002. Leeches were found attached to submerged plants. They were relaxed with gradual addition of 70% ethanol, fixed in 10% formalin, stored in 70% ethanol and stained with borax carmine. Examination of external morphology, dissections and microphotographs were accomplished with a Leica Wild M3Z stereo microscope aided with an Olympus C-4000 digital camera. H. fantasmae n. sp. differs from other species of the genus by the presence of 1 pair of eyes on somite III, crop without gastric chambers, digitiform caeca and postcaeca., short sperm ducts reaching the back of somite XV, atrium pyriform, short ovisacs reaching somite XIII. This is the first record of leeches from an ephemeral wetland in North Patagonia. This finding expands current knowledge of the biodiversity of Hirudinea in South America, increasing the number of known Helobdella spp. from the Río Negro province (North Patagonia to 10 species.Se describe una especie de sanguijuela dulceacuícola Helobdella fantasmae n. sp. Esta descripción se basa en el examen de 12 ejemplares recolectados en la Laguna Fantasma, Bariloche (41° 05'S 71° 28'O durante diciembre de 2002. Los individuos se hallaron asociados a la vegetación sumergida. Fueron relajados con la adición gradual de etanol 70%, fijados en formalina al 10%, preservados en etanol 70% y teñidos con carmín borácico. El examen de la morfología externa, disecciones y microfotografías fueron realizados con la ayuda de un estereomicroscopio Leica Wild M3Z con cámara digital Olympus C-4000. H. fantasmae n. sp. difiere de otras especies del género por los siguientes caracteres: un par de ojos en el somito III, estómago recto sin cámaras, ciegos laterales ni postciegos, espermiductos cortos que descienden hasta el

  12. Whose College Readiness Is It Anyway? College Readiness, Cultural, Economic and Social Capital, and Access to Pre-College Transition Programs

    Science.gov (United States)

    Gray-Nicolas, Nakia Marissa

    2017-01-01

    In the United States, the majority of high school graduates are not academically prepared for the rigor of postsecondary education or equipped with the skills necessary to enter the workforce (American College Test [ACT], 2012; Barnes & Slate, 2010; Conley, 2007a, 2007b). Often blamed for this lack preparation are inconsistent linkages between…

  13. Efecto neuroprotector del Lepidium meyenii, ecotipo negro (maca negra) en ratas crías frente al daño cerebral inducido por la ingesta de sulfato ferroso y vitamina C durante la gestación de las ratas madre

    OpenAIRE

    Troncoso, Luzmila; Guija, Emilio; Palomino, Felio; Soberón, Mercedes; Oliveira, Gisela; Núñez, Marco; Flores, Juana; Acuña, Sheresnarda; Terrazas, Carmen

    2013-01-01

    Objetivo: Evaluar el efecto neuroprotector del Lepidium meyenii, ecotipo negro en ratas crías por ingesta de sulfato ferroso y vitamina C (SFC) durante la gestación de ratas madre. Diseño: Experimental, analítico. Institución: Centro de Investigación de Bioquímica y Nutrición. Material biológico: Lepidium meyenii, ecotipo negro (maca negra: MN), ratas. Intervenciones: Se distribuyeron 30 ratas albinas de dos meses de edad, en tres grupos. Tratamiento en los últimos 7 días de gestación: grupo ...

  14. Community colleges and economic mobility

    OpenAIRE

    Natalia A. Kolesnikova

    2010-01-01

    This paper examines the role of community colleges in the U.S. higher education system and their advantages and shortcomings. In particular, it discusses the population of community college students and economic returns to community college education for various demographic groups. It offers new evidence on the returns to an associate's degree. Furthermore, the paper uses data from the National Survey of College Graduates to compare educational objectives, progress, and labor market outcomes ...

  15. Largest College Endowments, 2011

    Science.gov (United States)

    Chronicle of Higher Education, 2012

    2012-01-01

    Of all endowments valued at more than $250-million, the UCLA Foundation had the highest rate of growth over the previous year, at 49 percent. This article presents a table of the largest college endowments in 2011. The table covers the "rank," "institution," "market value as of June 30, 2011," and "1-year change" of institutions participating in…

  16. NASFAA's Cash for College.

    Science.gov (United States)

    National Association of Student Financial Aid Administrators, Washington, DC.

    This guide advises students about college costs and how to pay them. The booklet explains financial aid and how it can help a student reach his or her educational goals. Merit-based and need-based aid programs are described, and the family's expected financial contribution is explained. The process of obtaining and completing the Free Application…

  17. College Algebra I.

    Science.gov (United States)

    Benjamin, Carl; And Others

    Presented are student performance objectives, a student progress chart, and assignment sheets with objective and diagnostic measures for the stated performance objectives in College Algebra I. Topics covered include: sets; vocabulary; linear equations; inequalities; real numbers; operations; factoring; fractions; formulas; ratio, proportion, and…

  18. Book Industry Trends: College

    Science.gov (United States)

    Oda, Stephanie; Sanislo, Glenn

    2009-01-01

    With the cost of college said to be escalating at double the rate of inflation, parents and students have voiced frustration, some think unreasonably, about textbook prices. In 2007, higher-education publishers continued to grapple with price resistance to textbooks and competition from the used-book market. This article reports that…

  19. Inside the College Presidency.

    Science.gov (United States)

    Educational Record, 1996

    1996-01-01

    In interview, president of the American Council on Education, Robert H. Atwell, offers his perspectives on the current state of the college presidency; its pressures, rewards, and frustrations; and what he'd like to see administrators do differently. Qualities of an effective president include high energy, tolerance for ambiguity, good listening…

  20. Perspectives on Multiunit Colleges

    Science.gov (United States)

    Rossmeier, Joseph G.

    1976-01-01

    Research shows that neither centralization nor decentralization of decision-making authority in multiunit community colleges is a primary determinant of organizational effectiveness; rather it is the degree of participation in decision-making by staff members at all hierarchical levels. (BB)

  1. Gamers Go to College

    Science.gov (United States)

    Westman, Craig; Bouman, Penny

    2006-01-01

    This book was written both to examine and reveal the Gamer generation as a popular culture trend that has been two plus decades in the making and shaping. And, it is a generation that is now entering college--Gen G. This book explores how the Gamer generation is less a subset of the Millennial generation, but rather a unique generation unto…

  2. California Community Colleges Parking Survey.

    Science.gov (United States)

    McIntyre, Chuck

    In 1990, a representative sample of 25 California community colleges was contacted by telephone to determine their parking policies and practices. The colleges were sampled on the basis of location and size. Study findings included the following: (1) 17 of the colleges reported that they had insufficient numbers of on-campus parking spaces; (2)…

  3. Symposium: What Is College English?

    Science.gov (United States)

    Bloom, Lynn Z.; White, Edward M.; Enoch, Jessica; Hawk, Byron

    2013-01-01

    This symposium explores the role(s) College English has (or has not) had in the scholarly work of four scholars. Lynn Bloom explores the many ways College English influenced her work and the work of others throughout their scholarly lives. Edward M. White examines four articles he has published in College English and draws connections between…

  4. Community College Employee Wellness Programs

    Science.gov (United States)

    Thornton, L. Jay; Johnson, Sharon

    2010-01-01

    This paper describes the prevalence and characteristics of employee wellness programs in public community colleges accredited by the Southern Association of Colleges and Schools (SACS). A random sample of 250 public community colleges accredited by SACS was mailed a 46-item employee-wellness program survey. The survey solicited program information…

  5. Social Media Go to College

    Science.gov (United States)

    Martínez-Alemán, Ana M.

    2014-01-01

    Technology's march into the college classroom continues. Generations of college and university faculty have both embraced and resisted instructional technologies such as the book, the mimeograph, the overhead projector, and hand-held calculators. Now college and university faculty are greeting the 21st century's signature…

  6. What Is a College For?

    Science.gov (United States)

    Slutsky, Bette

    1978-01-01

    Argues that open enrollment policies have debased the community college and led to an abandonment of merit, standards, and competency. Suggests their new mission be to serve only those adults who qualify and can benefit from college-level work, abandoning those vocational, remedial, and recreational responsibilities which community colleges have…

  7. Tenure and America's Community Colleges

    Science.gov (United States)

    DiMaria, Frank

    2012-01-01

    America's colleges and universities have been moving slowly but steadily away from tenure over the past decade. The American Federation of Teachers reports that community colleges have seen a 22% increase in the number of instructional staff between 1997 and 2007. During that time, the percentage of community college faculty that were full-time…

  8. Introduction to the special issue on college student mental health.

    Science.gov (United States)

    Castillo, Linda G; Schwartz, Seth J

    2013-04-01

    This article provides an introduction to the special issue on college student mental health. It gives an overview of the establishment of the Multi-Site University Study of Identity and Culture (MUSIC) collaborative by a group of national experts on culture and identity. Information about the procedures used to collect a nationally represented sample of college students are provided. Data were collected from 30 university sites across the United States. The sample comprised 10,573 undergraduate college students, of which 73% were women, 63% White, 9% African American/Black, 14% Latino/Hispanic, 13% Asian American, and 1% Other. The special issue comprises a compilation of 8 studies that used the dataset specifically created to examine the issues of emerging adults, culture, and identity. Student mental health problems are a growing concern on college campuses. Studies covered in this special issue have implications for policy development regarding college alcohol use and traumatic victimization, include attention to underrepresented minority and immigrant groups on college campuses, and focus on positive as well as pathological aspects of the college experience. © 2013 Wiley Periodicals, Inc.

  9. The Fiscal Impacts of College Attainment

    Science.gov (United States)

    Trostel, Philip A.

    2010-01-01

    This study quantifies one part of the return to U.S. public investment in college education, namely, the fiscal benefits associated with greater college attainment. College graduates pay much more taxes than those not going to college. Government expenditures are also much less for college graduates than for those without a college education.…

  10. Interface unit

    NARCIS (Netherlands)

    Keyson, D.V.; Freudenthal, A.; De Hoogh, M.P.A.; Dekoven, E.A.M.

    2001-01-01

    The invention relates to an interface unit comprising at least a display unit for communication with a user, which is designed for being coupled with a control unit for at least one or more parameters in a living or working environment, such as the temperature setting in a house, which control unit

  11. The Royal College of Psychiatrists and the death penalty.

    Science.gov (United States)

    Gunn, John

    2004-01-01

    The Royal College of Psychiatrists recently issued a revised statement on its position concerning capital punishment. The College proposes to support psychiatrists who refuse to be involved in the capital process, but accepts that some may take up limited involvement in the manner set out in the document. The Royal College is the professional body for psychiatric practitioners in the United Kingdom and Ireland. Almost no public statements are issued from the College without first being deliberated on within at least two of its three major committees. The new document on capital punishment remains in the spirit of the previous ones. The topic of capital punishment is noncontroversial within the British medical profession. In all European countries, capital punishment is against the law, because there is an overarching directive from the Council of Europe (a wide group of nations, wider than the European Union) insisting that it be abolished.

  12. The State of Enterprise Risk Management at Colleges and Universities Today

    Science.gov (United States)

    Association of Governing Boards of Universities and Colleges, 2009

    2009-01-01

    This survey was jointly conducted by the Association of Governing Boards of Universities and Colleges (AGB) and United Educators (UE) and reports data on attitudes, practices and policies regarding enterprise risk management among American colleges and universities. The survey was completed by more than 600 respondents in June 2008. The population…

  13. Secondhand Tobacco Smoke Exposure and Susceptibility to Smoking, Perceived Addiction, and Psychobehavioral Symptoms among College Students

    Science.gov (United States)

    Okoli, Chizimuzo T. C.; Rayens, Mary Kay; Wiggins, Amanda T.; Ickes, Melinda J.; Butler, Karen M.; Hahn, Ellen J.

    2016-01-01

    Objective: To examine the association of secondhand smoke (SHS) exposure with susceptibility to smoking, perceived addiction, and psychobehavioral effects of exposure among never- and ever-smoking college students. Participants: Participants were 665 college students at a large, southeastern university in the United States. Methods: This study is…

  14. Benchmarking Alumni Relations in Community Colleges: Findings from a 2015 CASE Survey. CASE White Paper

    Science.gov (United States)

    Paradise, Andrew

    2016-01-01

    Building on the inaugural survey conducted three years prior, the 2015 CASE Community College Alumni Relations survey collected additional insightful data on staffing, structure, communications, engagement, and fundraising. This white paper features key data on alumni relations programs at community colleges across the United States. The paper…

  15. Cross-Cultural Peer Mentoring: One Approach to Enhancing White Faculty Adjustment at Black Colleges

    Science.gov (United States)

    Louis, Dave A.

    2015-01-01

    White faculty members at Black colleges in the United States face numerous social obstacles. Exploring the experiences of White faculty members at four historically Black colleges and universities (HBCUs) and their adjustment to a minority status assists the comprehension of issues surrounding this subgroup. Utilizing a phenomenological approach,…

  16. Where to Attend? Estimating the Effects of Beginning College at a Two-Year Institution

    Science.gov (United States)

    Reynolds, C. Lockwood

    2012-01-01

    Two-year colleges are an important part of the higher education system in the United States but there are concerns as to how attendance at these institutions affects educational attainment and labor market outcomes. This paper uses data from a nationally representative survey to examine the impact of students beginning their college career at a…

  17. Job Satisfaction of Foreign-Born Faculty in Community Colleges Using NSOPF 2004 Data

    Science.gov (United States)

    Markus, Lisa C.

    2011-01-01

    Academic leaders of community colleges need to better understand the factors that can lead to job satisfaction or dissatisfaction among foreign-born faculty members. The purpose of the study is to examine foreign-born faculty at community colleges in the United States in relation to intrinsic, extrinsic, demographic, and institutional typology…

  18. A Wake-Up Call: Enterprise Risk Management at Colleges and Universities Today

    Science.gov (United States)

    Association of Governing Boards of Universities and Colleges, 2014

    2014-01-01

    After five years of change and upheaval, why is it that governing boards of colleges and universities continue to consider risk on a largely ad hoc basis? The findings from this recent survey, conducted by the Association of Governing Boards of Universities and Colleges (AGB) and United Educators (UE), indicate a modest increase in the use of risk…

  19. Harnessing the Tax Code to Promote College Affordability: Options for Reform

    Science.gov (United States)

    Valenti, Joe; Bergeron, David; Baylor, Elizabeth

    2014-01-01

    The United States tax code is full of provisions designed to encourage or reward specific behaviors, such as owning a home or saving for retirement. Tax benefits for higher education are no exception: Contributions to some college savings accounts grow tax-free, college tuition is often tax deductible, and some student-loan borrowers are able to…

  20. Consumer Finance: College Students and Credit Cards. Report to Congressional Requesters.

    Science.gov (United States)

    D'Agostino, Davi M.

    In response to a request from the House of Representatives, employees of the General Accounting Office conducted structured interviews with about 100 officials at 12 universities and colleges around the United States about several issues related to college students and credit cards. They also reviewed three studies of credit card use by college…