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Sample records for berg elle puurmann

  1. Success with ELLs

    ERIC Educational Resources Information Center

    DelliCarpini, Margo, Ed.

    2008-01-01

    Working with English language learners (ELLs) in the English classroom brings a new layer to the teaching process for many teachers. Frequently they have had little coursework on effective practices for ELLs, and--without proper support--they can find themselves in a situation similar to some ELLs: sink or swim. Some English teachers mistakenly…

  2. ELLs' Perceptions of Reading

    ERIC Educational Resources Information Center

    Howard, Rachael M.

    2017-01-01

    This research investigated reading support and book preferences of fourth grade English language learners (ELLs) who were struggling readers. This qualitative research focused on three case studies. Interviews were conducted to explore ELLs' perceptions on reading motivation, reading programs, and types of support they received. Descriptions of…

  3. ELLs' Perceptions of Reading

    ERIC Educational Resources Information Center

    Howard, Rachael M.

    2012-01-01

    This research investigated reading support and book preferences of fourth grade English language learners (ELLs) who were struggling readers. This qualitative research focused on three case studies. Interviews were conducted to explore ELLs' perceptions on reading motivation, reading programs, and types of support they received. Descriptions of…

  4. ELLs' Perceptions of Reading

    ERIC Educational Resources Information Center

    Howard, Rachael M.

    2012-01-01

    This research investigated reading support and book preferences of fourth grade English language learners (ELLs) who were struggling readers. This qualitative research focused on three case studies. Interviews were conducted to explore ELLs' perceptions on reading motivation, reading programs, and types of support they received. Descriptions of…

  5. ELL Spoken Here

    ERIC Educational Resources Information Center

    Starkman, Neal

    2008-01-01

    Online resources and educator networks are providing teachers of English language learners with a support system they do not often get within their own school districts. Catherine Collier's Cross Cultural Developmental Education Services, based in Ferndale, WA., has been providing professional development and teaching materials to ELL teachers.…

  6. ELL to Go

    ERIC Educational Resources Information Center

    Demski, Jennifer

    2011-01-01

    Township High School District 214 in Arlington Heights, Illinois, and Comal Independent School District (ISD) in New Braunfels, Texas, are pioneers in the incorporation of mobile devices such as the iPad and iPod Touch in the English language learner (ELL) classroom. Though it's too soon to collect significant quantitative data regarding the…

  7. ELL Spoken Here

    ERIC Educational Resources Information Center

    Starkman, Neal

    2008-01-01

    Online resources and educator networks are providing teachers of English language learners with a support system they do not often get within their own school districts. Catherine Collier's Cross Cultural Developmental Education Services, based in Ferndale, WA., has been providing professional development and teaching materials to ELL teachers.…

  8. Mediated Learning Experiences for ELLs

    ERIC Educational Resources Information Center

    Montgomery, Joel R.

    2008-01-01

    This paper addresses elements of the bilingual program for English language learners (ELL) in Illinois School District U-46 (U-46). Beginning with the context of bilingual education in the United States, the paper also introduces the current state of bilingual programming in U-46. ELL initiatives in light of the U-46 partnership with the Stupski…

  9. Sheltered Instruction Techniques for ELLs

    ERIC Educational Resources Information Center

    Pray, Lisa; Monhardt, Rebecca

    2009-01-01

    The suggestions described here to adapt instruction for English Language Learners (ELLs) are based on the concept of "sheltered instruction," a model of language-support methods for instruction for ELLs derived primarily through the Sheltered Instruction Observational Protocol (SIOP) developed by Jana Echevarria, Mary Ellen Vogt, and Deborah Short…

  10. The Rotation Period of 4528 Berg

    NASA Astrophysics Data System (ADS)

    Stecher, George; Ford, Lyle; Bluem, Jesse; Smith, Blake; Fahey, Samuel

    2015-04-01

    We observed 4528 Berg for 5.6 hours on 2014 March 30 and obtained R and V standard magnitudes. The period was determined to be 3.47 ± 0.44 h, which is consistent with the period of 3.5163 ± 0.0004 h previously reported by Behrend (2006).

  11. Characterization and Detection of ϵ-Berge-Zhukovskii Equilibria

    PubMed Central

    Lung, Rodica Ioana; Suciu, Mihai; Gaskó, Noémi; Dumitrescu, D.

    2015-01-01

    The Berge-Zhukovskii equilibrium is an alternate solution concept in non-cooperative game theory that formalizes cooperation in a noncooperative setting. In this paper, the ϵ-Berge-Zhukovskii equilibrium is introduced and characterized by using a generative relation. The generative relation also provides a solution to the problem of computing the ϵ-Berge-Zhukovskii equilibrium for large games, by using evolutionary algorithms. Numerical examples illustrate the approach and provide a possible application for this equilibrium concept. PMID:26177217

  12. Characterization and Detection of ϵ-Berge-Zhukovskii Equilibria.

    PubMed

    Lung, Rodica Ioana; Suciu, Mihai; Gaskó, Noémi; Dumitrescu, D

    2015-01-01

    The Berge-Zhukovskii equilibrium is an alternate solution concept in non-cooperative game theory that formalizes cooperation in a noncooperative setting. In this paper, the ϵ-Berge-Zhukovskii equilibrium is introduced and characterized by using a generative relation. The generative relation also provides a solution to the problem of computing the ϵ-Berge-Zhukovskii equilibrium for large games, by using evolutionary algorithms. Numerical examples illustrate the approach and provide a possible application for this equilibrium concept.

  13. Teaching Photosynthesis with ELL Students

    ERIC Educational Resources Information Center

    Piper, Susan; Shaw, Edward Lewis, Jr.

    2010-01-01

    Although the teaching of photosynthesis occurs yearly in elementary classrooms, one thing that makes it challenging is the inclusion of English language learners (ELLs). This article presents several activities for teaching and assessing of photosynthesis in a third grade classroom. The activities incorporate the photosynthesis content, teaching…

  14. Getting to Know ELLs' Families

    ERIC Educational Resources Information Center

    Breiseth, Lydia

    2016-01-01

    Most English language learners are from families that have recently immigrated to the United States-and many of those families traveled here at tremendous risk to seek better education for their children. It's important for classroom teachers to make building relationships with the families of ELLs a priority. Breiseth asserts that the most…

  15. Best Practices for Adolescent ELLs

    ERIC Educational Resources Information Center

    Rance-Roney, Judith

    2009-01-01

    Adolescent English language learners present particular challenges for schools. The population of adolescent ELLs is diverse, and their educational needs are affected by differences in immigration status, quality of educational background, native language, cultural distance from U.S. culture, future plans, and economic status. The article offers…

  16. A Running Start for ELLs

    ERIC Educational Resources Information Center

    Herbert, Marion

    2012-01-01

    One in four students under the age of six comes from an immigrant family in which at least one parent does not speak English. Traditionally, states such as Nevada, California, New Mexico, Arizona and Texas have served the vast majority of English language learner (ELL) students, although the surging growth of this demographic--now 5.5 million…

  17. Best Practices for Adolescent ELLs

    ERIC Educational Resources Information Center

    Rance-Roney, Judith

    2009-01-01

    Adolescent English language learners present particular challenges for schools. The population of adolescent ELLs is diverse, and their educational needs are affected by differences in immigration status, quality of educational background, native language, cultural distance from U.S. culture, future plans, and economic status. The article offers…

  18. Consortia Struggle with ELL Provisions

    ERIC Educational Resources Information Center

    Maxwell, Lesli A.

    2013-01-01

    As test designers work to craft the new, common assessments set to debut in most of the nation's public schools in the 2014-15 school year, their goal is to provide all English-language learners (ELLs), regardless of their language-proficiency levels, the same opportunities to demonstrate their content knowledge and skills as their peers who are…

  19. New Talk about ELL Students

    ERIC Educational Resources Information Center

    Lee, Stacey J.

    2012-01-01

    The educational achievement of students from immigrant families, including those who come to the U.S. as adolescents, is of utmost importance not just for these individuals and their families but to the larger society as well. Research in schools in the Internationals Network and other schools known for successfully educating newcomer ELLs points…

  20. New Talk about ELL Students

    ERIC Educational Resources Information Center

    Lee, Stacey J.

    2012-01-01

    The educational achievement of students from immigrant families, including those who come to the U.S. as adolescents, is of utmost importance not just for these individuals and their families but to the larger society as well. Research in schools in the Internationals Network and other schools known for successfully educating newcomer ELLs points…

  1. Best Practices in ELL Instruction

    ERIC Educational Resources Information Center

    Li, Guofang, Ed.; Edwards, Patricia A., Ed.

    2010-01-01

    In this work, prominent authorities review the latest research on all aspects of ELL instruction (K-12) and identify what works for today's students and schools. Provided are best-practice guidelines for targeting reading, writing, oral language, vocabulary, content-domain literacies, and other core skill areas; assessing culturally and…

  2. Best Practices in ELL Instruction

    ERIC Educational Resources Information Center

    Li, Guofang, Ed.; Edwards, Patricia A., Ed.

    2010-01-01

    In this work, prominent authorities review the latest research on all aspects of ELL instruction (K-12) and identify what works for today's students and schools. Provided are best-practice guidelines for targeting reading, writing, oral language, vocabulary, content-domain literacies, and other core skill areas; assessing culturally and…

  3. Getting to Know ELLs' Families

    ERIC Educational Resources Information Center

    Breiseth, Lydia

    2016-01-01

    Most English language learners are from families that have recently immigrated to the United States-and many of those families traveled here at tremendous risk to seek better education for their children. It's important for classroom teachers to make building relationships with the families of ELLs a priority. Breiseth asserts that the most…

  4. Teaching Photosynthesis with ELL Students

    ERIC Educational Resources Information Center

    Piper, Susan; Shaw, Edward Lewis, Jr.

    2010-01-01

    Although the teaching of photosynthesis occurs yearly in elementary classrooms, one thing that makes it challenging is the inclusion of English language learners (ELLs). This article presents several activities for teaching and assessing of photosynthesis in a third grade classroom. The activities incorporate the photosynthesis content, teaching…

  5. A Running Start for ELLs

    ERIC Educational Resources Information Center

    Herbert, Marion

    2012-01-01

    One in four students under the age of six comes from an immigrant family in which at least one parent does not speak English. Traditionally, states such as Nevada, California, New Mexico, Arizona and Texas have served the vast majority of English language learner (ELL) students, although the surging growth of this demographic--now 5.5 million…

  6. Benchmark Dose Software Development and Maintenance Ten Berge Cxt Models

    EPA Science Inventory

    This report is intended to provide an overview of beta version 1.0 of the implementation of a concentration-time (CxT) model originally programmed and provided by Wil ten Berge (referred to hereafter as the ten Berge model). The recoding and development described here represent ...

  7. Benchmark Dose Software Development and Maintenance Ten Berge Cxt Models

    EPA Science Inventory

    This report is intended to provide an overview of beta version 1.0 of the implementation of a concentration-time (CxT) model originally programmed and provided by Wil ten Berge (referred to hereafter as the ten Berge model). The recoding and development described here represent ...

  8. Brazilian version of the Berg balance scale.

    PubMed

    Miyamoto, S T; Lombardi Junior, I; Berg, K O; Ramos, L R; Natour, J

    2004-09-01

    The purpose of the present study was to translate and adapt the Berg balance scale, an instrument for functional balance assessment, to Brazilian-Portuguese and to determine the reliability of scores obtained with the Brazilian adaptation. Two persons proficient in English independently translated the original scale into Brazilian-Portuguese and a consensus version was generated. Two translators performed a back translation. Discrepancies were discussed and solved by a panel. Forty patients older than 65 years and 40 therapists were included in the cultural adaptation phase. If more than 15% of therapists or patients reported difficulty in understanding an item, that item was reformulated and reapplied. The final Brazilian version was then tested on 36 elderly patients (over age 65). The average age was 72 years. Reliability of the measure was assessed twice by one physical therapist (1-week interval between assessments) and once by one independent physical therapist. Descriptive analysis was used to characterize the patients. The intraclass correlation coefficient (ICC) and Pearson's correlation coefficient were computed to assess intra- and interobserver reliability. Six questions were modified during the translation stage and cultural adaptation phase. The ICC for intra- and interobserver reliability was 0.99 (P < 0.001) and 0.98 (P < 0.001), respectively. The Pearson correlation coefficient for intra- and interobserver reliability was 0.98 (P < 0.001) and 0.97 (P < 0.001), respectively. We conclude that the Brazilian version of the Berg balance scale is a reliable instrument to be used in balance assessment of elderly Brazilian patients.

  9. Insoo Kim Berg and Solution-Focused Therapy.

    ERIC Educational Resources Information Center

    West, John D.; Bubenzer, Donald L.; Smith, Jeffrey M.; Hamm, Terri L.

    1997-01-01

    Interview with Insoo Kim Berg, a leading theoretician in solution-based therapy. She is joined by Steve de Shazer, a colleague. They discuss the evolution of her work and its application to various populations. (MKA)

  10. Understanding Diversity of English Language Learners: Identification of ELLs and ELLs with Disabilities

    ERIC Educational Resources Information Center

    Wang, Charity

    2014-01-01

    English Language Learners (ELLs) are one of the fastest growing student populations throughout the country. With ELLs come unique challenges schools must navigate to best serve these students. One challenge is the identification of these students and proper placement and service within ELL programs offered by schools. Another challenge is…

  11. Science: A Second Language for ELL Students

    ERIC Educational Resources Information Center

    Nabors, Martha L.; Edwards, Linda Carol

    2011-01-01

    In today's inclusive classrooms, teachers are challenged to incorporate a variety of instructional activities designed to support learning for all--including children who are English Language Learners (ELLs). In science lessons at the early childhood level, ELLs not only must learn science concepts, but also the vocabulary essential for mastering…

  12. Test Review: ACCESS for ELLs[R

    ERIC Educational Resources Information Center

    Fox, Janna; Fairbairn, Shelley

    2011-01-01

    This article reviews Assessing Comprehension and Communication in English State-to-State for English Language Learners ("ACCESS for ELLs"[R]), which is a large-scale, high-stakes, standards-based, and criterion-referenced English language proficiency test administered in the USA annually to more than 840,000 English Language Learners (ELLs), in…

  13. Test Review: ACCESS for ELLs[R

    ERIC Educational Resources Information Center

    Fox, Janna; Fairbairn, Shelley

    2011-01-01

    This article reviews Assessing Comprehension and Communication in English State-to-State for English Language Learners ("ACCESS for ELLs"[R]), which is a large-scale, high-stakes, standards-based, and criterion-referenced English language proficiency test administered in the USA annually to more than 840,000 English Language Learners (ELLs), in…

  14. Science: A Second Language for ELL Students

    ERIC Educational Resources Information Center

    Nabors, Martha L.; Edwards, Linda Carol

    2011-01-01

    In today's inclusive classrooms, teachers are challenged to incorporate a variety of instructional activities designed to support learning for all--including children who are English Language Learners (ELLs). In science lessons at the early childhood level, ELLs not only must learn science concepts, but also the vocabulary essential for mastering…

  15. Weyl-von Neumann-Berg theorem for quaternionic operators

    NASA Astrophysics Data System (ADS)

    G, Ramesh

    2016-04-01

    We prove the Weyl-von Neumann-Berg theorem for right linear operators (not necessarily bounded) in a quaternionic Hilbert space: Let N be a right linear normal (need not be bounded) operator in a quaternionic separable infinite dimensional Hilbert space H. Then for a given ɛ > 0, there exists a compact operator K with ↑" separators=" K ↑ < ɛ and a diagonal operator D on H such that N = D + K.

  16. Imagining and Moving beyond the ESL Bubble: Facilitating Communities of Practice through the ELL Ambassadors Program

    ERIC Educational Resources Information Center

    Przymus, Steve Daniel

    2016-01-01

    When educators do not facilitate English language learners' (ELLs) social integration in schools, this can perpetuate ELLs' marginalized status and the plateauing of ELLs' English language development. This study highlights a program for secondary ELLs called the ELL Ambassadors program, which partnered ELLs with non-ELLs based on shared…

  17. Imagining and Moving beyond the ESL Bubble: Facilitating Communities of Practice through the ELL Ambassadors Program

    ERIC Educational Resources Information Center

    Przymus, Steve Daniel

    2016-01-01

    When educators do not facilitate English language learners' (ELLs) social integration in schools, this can perpetuate ELLs' marginalized status and the plateauing of ELLs' English language development. This study highlights a program for secondary ELLs called the ELL Ambassadors program, which partnered ELLs with non-ELLs based on shared…

  18. Create a Responsive Learning Community for ELLs

    ERIC Educational Resources Information Center

    Dong, Yu Ren

    2016-01-01

    The American educational landscape is changing rapidly, and so are the students in American mathematics classrooms. In the New York City public schools, one of every four students is an English language learner (ELL) (New York City Department of Education 2014). Mathematics teachers find themselves teaching either in a classroom that contains all…

  19. Informal Reading Inventories and ELL Students

    ERIC Educational Resources Information Center

    Gandy, Sandra E.

    2013-01-01

    With the increasing amount of testing taking place in classrooms, teachers may question how appropriate those assessments are for the growing numbers of English language learners (ELLs) in the United States. One of the assessment options for classroom teachers is the informal reading inventory (IRI), which is the most frequently used assessment…

  20. Create a Responsive Learning Community for ELLs

    ERIC Educational Resources Information Center

    Dong, Yu Ren

    2016-01-01

    The American educational landscape is changing rapidly, and so are the students in American mathematics classrooms. In the New York City public schools, one of every four students is an English language learner (ELL) (New York City Department of Education 2014). Mathematics teachers find themselves teaching either in a classroom that contains all…

  1. Mentoring for Success: Accommodation Strategies for ELLs

    ERIC Educational Resources Information Center

    Munro, Jill; Abbott, Marilyn; Rossiter, Marian

    2013-01-01

    We investigated the extent to which a seven-week action research mentoring project would help two junior high school science teachers to feel more confident and successful in their abilities to use accommodation strategies to support the English language learners (ELLs) in their classes, and consequently to increase their ability to assess more…

  2. ELL Shadowing as a Catalyst for Change

    ERIC Educational Resources Information Center

    Soto, Ivannia

    2012-01-01

    What if you could barely understand what your teacher was saying? Imagine working mostly independently and silently, with limited opportunities to interact with others. ELL shadowing helps teachers better understand the classroom experience from an English language learner's point of view. The author describes how to implement this easily…

  3. For ELLs: Vocabulary beyond the Definitions

    ERIC Educational Resources Information Center

    Roberts, Nancy S.; Truxaw, Mary P.

    2013-01-01

    In this article, a classroom teacher discusses ambiguities in mathematics vocabulary and strategies for ELL students in building understanding. The authors note that mathematics vocabulary may be more difficult to learn than other academic vocabulary for several reasons: (1) definitions are filled with technical vocabulary, symbols, and diagrams;…

  4. Co-Teaching to Support ELLs

    ERIC Educational Resources Information Center

    Beninghof, Anne; Leensvaart, Mandy

    2016-01-01

    Field Elementary School in Littleton, Colorado, had previously seen success with its pullout model of instruction for English language learners. However, as the English language learner (ELL) population increased to 42 percent, the school's performance on state assessments dropped, and it was clear that something different was needed. School…

  5. Co-Teaching to Support ELLs

    ERIC Educational Resources Information Center

    Beninghof, Anne; Leensvaart, Mandy

    2016-01-01

    Field Elementary School in Littleton, Colorado, had previously seen success with its pullout model of instruction for English language learners. However, as the English language learner (ELL) population increased to 42 percent, the school's performance on state assessments dropped, and it was clear that something different was needed. School…

  6. For ELLs: Vocabulary beyond the Definitions

    ERIC Educational Resources Information Center

    Roberts, Nancy S.; Truxaw, Mary P.

    2013-01-01

    In this article, a classroom teacher discusses ambiguities in mathematics vocabulary and strategies for ELL students in building understanding. The authors note that mathematics vocabulary may be more difficult to learn than other academic vocabulary for several reasons: (1) definitions are filled with technical vocabulary, symbols, and diagrams;…

  7. A Search for B^{+} \\to \\ell^{+} \

    SciTech Connect

    Aubert, Bernard; Bona, M.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Lopez, L.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Abrams, G.S.; Battaglia, M.; Brown, D.N.; Cahn, R.N.; Jacobsen, R.G.; /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /INFN, Ferrara /Ferrara U. /INFN, Ferrara /INFN, Ferrara /Ferrara U. /INFN, Ferrara /INFN, Ferrara /Ferrara U. /Frascati /INFN, Genoa /INFN, Genoa /Genoa U. /INFN, Genoa /INFN, Genoa /Genoa U. /INFN, Genoa /INFN, Genoa /Genoa U. /INFN, Genoa /INFN, Genoa /Genoa U. /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT, LNS /McGill U. /INFN, Milan /Milan U. /INFN, Milan /INFN, Milan /Milan U. /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /INFN, Naples /Naples U. /INFN, Naples /INFN, Naples /Naples U. /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /INFN, Padua /Padua U. /INFN, Padua /INFN, Padua /Padua U. /Paris U., VI-VII /Pennsylvania U. /INFN, Perugia /Perugia U. /INFN, Pisa /Pisa U. /INFN, Pisa /Pisa, Scuola Normale Superiore /INFN, Pisa /Pisa U. /INFN, Pisa /Princeton U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /Rostock U. /Rutherford /DSM, DAPNIA, Saclay /South Carolina U. /SLAC /Stanford U., Phys. Dept. /SUNY, Albany /Tennessee U. /Texas U. /Texas U., Dallas /INFN, Turin /Turin U. /INFN, Trieste /Trieste U. /Valencia U., IFIC /Victoria U. /Warwick U. /Wisconsin U., Madison

    2009-04-17

    We present a search for the decay B{sup +} {yields} {ell}{sup +} {nu}{sub {ell}} ({ell} = {tau}, {mu}, or e) in (458.9 {+-} 5.1) x 10{sup 6} {Upsilon}(4S) decays recorded with the BABAR detector at the SLAC PEP-IIB-Factory. A sample of events with one reconstructed exclusive semi-leptonic B decay (B{sup -} {yields} D{sup 0} {ell}{sup -}{bar {nu}}X) is selected, and in the recoil a search for B{sup +} {yields} {ell}{sup +}{nu}{sub {ell}} signal is performed. The {tau} is identified in the following channels: {tau}{sup +} {yields} e{sup +}{nu}{sub e}{nu}{sub {tau}}, {tau}{sup +} {yields} {mu}{sup +}{nu}{sub {mu}}{nu}{sub {tau}}, {tau}{sup +} {yields} {pi}{sup +}{nu}{sub {tau}}, and {tau}{sup +} {yields} {pi}{sup +}{pi}{sup 0}{nu}{sub {tau}}. The analysis strategy and the statistical procedure is set up for branching fraction extraction or upper limit determination. We determine from the dataset a preliminary measurement of {Beta}(B{sup +} {yields} {tau}{sup +}{nu}{sub {tau}}) = (1.8 {+-} 0.8 {+-} 0.1) x 10{sup -4}, which excludes zero at 2.4{sigma}, and f{sub B} = 230 {+-} 57 MeV. Combination with the hadronically tagged measurement yields {Beta}(B{sup +} {yields} e{sup +}{nu}{sub e}) = (1.8 {+-} 0.6) x 10{sup -4}. We also set preliminary limits on the branching fractions at {Beta}(B{sup +} {yields} e{sup +}{nu}{sub e}) < 7.7 x 10{sup -6} (90% C.L.), {Beta}(B{sup +} {yields} {mu}{sup +}{nu}{sub {mu}}) < 11 x 10{sup -6} (90% C.L.), and {Beta}(B{sup +} {yields} {tau}{sup +}{nu}{sub {tau}}) < 3.2 x 10{sup -4} (90% C.L.).

  8. What Is the Optimal Length of an ELL Program?

    ERIC Educational Resources Information Center

    Hong, Guanglei; Gagne, Joshua; West, Andrew

    2014-01-01

    This study focuses on assessing the contribution of ELL services to Spanish-speaking students' mathematics learning in elementary schools. ELL students tend to have lower average math achievement at school entry and throughout elementary school. The term "ELL services" encompasses English-as-a-second-language (ESL) programs, bilingual…

  9. Micropropagation systems of Feijoa (Acca sellowiana (O. Berg) Burret).

    PubMed

    Guerra, Miguel Pedro; Cangahuala-Inocente, Gabriela Claudia; Vesco, Lirio Luiz Dal; Pescador, Rosete; Caprestano, Clarissa Alves

    2013-01-01

    Acca sellowiana (O. Berg) Burret sin. Feijoa sellowiana (Myrtaceae) is a semiwoody fruit species native to South Brazil, Uruguay, and Argentina; edible fruits are tasty. The naturally occurring populations in Santa Catarina State show high variability in fruit size, color, and other features. A breeding program launched in 1990 resulted in the release of four Brazilian commercial varieties. The conventional clonal propagation methods of this species, such as cutting and grafting, have shown low efficiency. Therefore, tissue culture techniques were developed for mass propagation. This chapter describes several protocols based on organogenesis and somatic embryogenesis. Additional techniques including synthetic seed technology and temporary immersion system are also described.

  10. Under Federal Pressure, District Addresses ELLs

    ERIC Educational Resources Information Center

    Zehr, Mary Ann

    2009-01-01

    Nurta Muktar, a 17-year-old refugee of Somali heritage, learned to read this school year at East High School. It likely would not have happened if East High did not provide classes in basic reading skills for English-language learners (ELLs). And the school likely would not have such classes, some Salt Lake City teachers say, if the U.S.…

  11. Under Federal Pressure, District Addresses ELLs

    ERIC Educational Resources Information Center

    Zehr, Mary Ann

    2009-01-01

    Nurta Muktar, a 17-year-old refugee of Somali heritage, learned to read this school year at East High School. It likely would not have happened if East High did not provide classes in basic reading skills for English-language learners (ELLs). And the school likely would not have such classes, some Salt Lake City teachers say, if the U.S.…

  12. It’s Eff, En, Ell | Poster

    Cancer.gov

    By Ken Michaels, Staff Writer The other day, in a discussion about implementing new branding standards for the name change to Frederick National Laboratory, Frank Blanchard, our public affairs director, related to me that he had recently been asked, “So how exactly do I pronounce FNL?” His answer was, “Eff, en, ell.” Why? Because FNL is not an acronym.

  13. It’s Eff, En, Ell | Poster

    Cancer.gov

    By Ken Michaels, Staff Writer The other day, in a discussion about implementing new branding standards for the name change to Frederick National Laboratory, Frank Blanchard, our public affairs director, related to me that he had recently been asked, “So how exactly do I pronounce FNL?” His answer was, “Eff, en, ell.” Why? Because FNL is not an acronym.

  14. School Expenditures and Academic Achievement Differences between High-ELL-Performing and Low-ELL-Performing High Schools

    ERIC Educational Resources Information Center

    Jiménez-Castellanos, Oscar Hugo; García, David

    2017-01-01

    English Language Learners (ELLs) are one of the fastest-growing K-12 populations across the nation. Educating secondary ELLs poses a unique challenge to U.S. schools. For instance, ELLs tend to experience high rates of poverty and attend segregated, underfunded, and unsafe schools. With the "League of United Latin American Citizens vs.…

  15. Does English Language Learner (ELL) Identification Predict College Remediation Designation? A Comparison by Race and Ethnicity, and ELL Waiver Status

    ERIC Educational Resources Information Center

    Flores, Stella M.; Drake, Timothy A.

    2014-01-01

    Using individual-level longitudinal state administrative data, this analysis examines whether English language learner (ELL) status increases the likelihood of being designated as needing college remediation. We track a cohort of ELL and non-ELL students from first grade to college entry and investigate whether there are differences in students'…

  16. Conditional deletion of ELL2 induces murine prostate intraepithelial neoplasia.

    PubMed

    Pascal, Laura E; Masoodi, Khalid Z; Liu, June; Qiu, Xiaonan; Song, Qiong; Wang, Yujuan; Zang, Yachen; Yang, Tiejun; Wang, Yao; Rigatti, Lora H; Chandran, Uma; Colli, Leandro M; Vencio, Ricardo Z N; Lu, Yi; Zhang, Jian; Wang, Zhou

    2017-11-01

    Elongation factor, RNA polymerase II, 2 (ELL2) is an RNA Pol II elongation factor with functional properties similar to ELL that can interact with the prostate tumor suppressor EAF2. In the prostate, ELL2 is an androgen response gene that is upregulated in benign prostatic hyperplasia (BPH). We recently showed that ELL2 loss could enhance prostate cancer cell proliferation and migration, and that ELL2 gene expression was downregulated in high Gleason score prostate cancer specimens. Here, prostate-specific deletion of ELL2 in a mouse model revealed a potential role for ELL2 as a prostate tumor suppressor in vivoEll2-knockout mice exhibited prostatic defects including increased epithelial proliferation, vascularity and PIN lesions similar to the previously determined prostate phenotype in Eaf2-knockout mice. Microarray analysis of prostates from Ell2-knockout and wild-type mice on a C57BL/6J background at age 3 months and qPCR validation at 17 months of age revealed a number of differentially expressed genes associated with proliferation, cellular motility and epithelial and neural differentiation. OncoPrint analysis identified combined downregulation or deletion in prostate adenocarcinoma cases from the Cancer Genome Atlas (TCGA) data portal. These results suggest that ELL2 and its pathway genes likely play an important role in the development and progression of prostate cancer. © 2017 Society for Endocrinology.

  17. Academic Growth Trajectories of ELLs in NAEP Data: The Case of Fourth- and Eighth-Grade ELLs and Non-ELLs on Mathematics and Reading Tests

    ERIC Educational Resources Information Center

    Polat, Nihat; Zarecky-Hodge, Ashley; Schreiber, James B.

    2016-01-01

    Utilizing the National Assessment of Educational Progress (NAEP) data, this study examined (1) how fourth and eighth-grade ELLs' mathematics and reading scores on national tests compared to their non-ELL peers' scores over the testing period between 2003 and 2011, and (2) if gender and ethnicity contributed to variation in the growth patterns…

  18. Academic Growth Trajectories of ELLs in NAEP Data: The Case of Fourth- and Eighth-Grade ELLs and Non-ELLs on Mathematics and Reading Tests

    ERIC Educational Resources Information Center

    Polat, Nihat; Zarecky-Hodge, Ashley; Schreiber, James B.

    2016-01-01

    Utilizing the National Assessment of Educational Progress (NAEP) data, this study examined (1) how fourth and eighth-grade ELLs' mathematics and reading scores on national tests compared to their non-ELL peers' scores over the testing period between 2003 and 2011, and (2) if gender and ethnicity contributed to variation in the growth patterns…

  19. Photoacoustic spectroscopy study of Blepharocalyx salicifolius (Kunt) O. Berg

    NASA Astrophysics Data System (ADS)

    Rodriguez, A. F. R.; Jacobson, T. K. B.; Moraes, J. S. F.; Faria, F. S. E. D. V.; Cunha, R. M.; Santos, J. G.; Oliveira, A. C.; Azevedo, R. B.; Morales, M. A.; Morais, P. C.

    Photoacoustic spectroscopy (PAS) has revolutionized the fields of biological, environmental, and agricultural sciences. It is a very simple, sensitive, and non-destructive technique that allows the determination of optical properties of bio-samples. The in vivo chlorophylls of the leaf have a recorded maximum absorption peak at 675 nm as against 665 nm of the in vitro chlorophylls. The intensity of purple pigmentation in leaves of Blepharocalyx salicifolius (Kunt) O. Berg, is inversely correlated to the soil moisture levels, leaf water content and leaf water potentials. The applicability of PAS to biological samples was discussed. It allows the validation of existing emission models which are important for atmospheric process. A portable device for photoacoustic spectroscopy of plants and other photosynthetic tissues, cells and organelles is provided. Further, there is provided a method to measure photosynthesis of such tissues, cells and organelles.

  20. ELL Students and the Library or ELL Estudiantes en la Biblioteca

    ERIC Educational Resources Information Center

    Moorefield-Lang, Heather; Anaya, Gabriela; Shirk, Dawn

    2010-01-01

    Like middle school students, adults would never want to go into a new school not being able to speak the language. Most teachers aren't signing up to teach in Mexico or China unless they know how to speak with their fellow educators and their students. But English Language Learners (ELL) don't have the choices that teachers do. They have been…

  1. Success with ELLs: ELLs at the Center--Rethinking High-Stakes Testing

    ERIC Educational Resources Information Center

    Ortiz-Marrero, Floris Wilma; Sumaryono, Karen

    2010-01-01

    Learning a language can be a long and arduous journey, and there is a lot of pressure on teachers to get students ready for standardized tests quickly. Because of the high-stakes consequences attached to standardized tests in combination with consistently lower test scores among English language learners (ELLs), the tests greatly impact the…

  2. ELL Students and the Library or ELL Estudiantes en la Biblioteca

    ERIC Educational Resources Information Center

    Moorefield-Lang, Heather; Anaya, Gabriela; Shirk, Dawn

    2010-01-01

    Like middle school students, adults would never want to go into a new school not being able to speak the language. Most teachers aren't signing up to teach in Mexico or China unless they know how to speak with their fellow educators and their students. But English Language Learners (ELL) don't have the choices that teachers do. They have been…

  3. ELL Parent Perceptions on Instructional Strategies for Their Children with Disabilities. ELLs with Disabilities Report 12

    ERIC Educational Resources Information Center

    Barrera, Manuel; Vang, Halee; Liu, Kristin; Thurlow, Martha

    2005-01-01

    English language learners (ELLs) with disabilities, especially Hmong, Latinos, and Somalis, exhibit the lowest academic performance and participation rates on statewide tests of academic achievement required by No Child Left Behind (NCLB). These challenges are even more acute for learners with disabilities among these groups and likely reflect the…

  4. New Observables In the Decay Mode \\bar B_d \\-->\\bar K^{0*} \\ell^+ \\ell^-

    SciTech Connect

    Egede, U.; Hurth, T.; Matias, J.; Ramon, M.; Reece, W.; /Imperial Coll., London

    2008-08-07

    We discuss the large set of observables available from the angular distributions of the decay {bar B}{sub d} {yields} {bar K}*{sup 0}{ell}{sup +}{ell}{sup -}. We present a NLO analysis of all observables based on the QCD factorization approach in the low-dilepton mass region and an estimate of {Lambda}/m{sub b} corrections. Moreover, we discuss their sensitivity to new physics. We explore the experimental sensitivities at LHCb (10 fb{sup -1}) and SuperLHCb (100 fb{sup -1}) based on a full-angular fit method and explore the sensitivity to right handed currents. We also show that the previously discussed transversity amplitude A{sub T}{sup (1)} cannot be measured at the LHCb experiment or at future B factory experiments as it requires a measurement of the spin of the final state particles.

  5. Strategies for Teaching Social Studies to Elementary Level ELLs

    ERIC Educational Resources Information Center

    Weisman, Evelyn Marino; Hansen, Laurie E.

    2007-01-01

    Across the U.S., teachers are encountering students who are in the process of learning English as a second language. In the past two decades, this student population, known as English-language learners (ELLs), has more than doubled. Because of the linguistic demands of social studies content, ELLs may have particular difficulty understanding this…

  6. More than Numbers: Teaching ELLs Mathematical Language in Primary Grades

    ERIC Educational Resources Information Center

    Sistla, Michelle; Feng, Jay

    2014-01-01

    Teaching English Language Learners (ELL) academics while they are acquiring English language skills is a challenge for teachers. This action research examines the use of Response To Intervention (RTI) in teaching ELLs mathematical language and its effect on students' math achievement in primary grades. It shows that when mathematical language…

  7. First Grade Teachers' Perceptions of and Expectations for ELL Students

    ERIC Educational Resources Information Center

    Couch, Marsha

    2010-01-01

    Educational disparities exist between English language learners (ELLs) and native English-speaking students. Evidence suggests that, by fourth grade, 35% of ELLs, compared to their native English-speaking peers, are behind in math, and 47% are behind in reading. There is also evidence to suggest that these lower achievement scores are impacted by…

  8. Hopefulness for Teachers of ELLs in the Era of NCLB

    ERIC Educational Resources Information Center

    Colombo, Michaela; McMakin, Deborah; Jacobs, Cynthia; Shestok, Carol

    2013-01-01

    In this article the authors explore the role of critical hope as an essential quality in teachers' preparation to teach English Language Learners (ELLs) in the era of No Child Left Behind. The authors found that high stakes testing with inappropriate measures combined with teachers' lack of preparation to teach ELLs resulted in a downward spiral…

  9. 3. First floor of rear ell: view of exposed framing ...

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

    3. First floor of rear ell: view of exposed framing on north wall, floor, and ceiling, looking north - McCrone House, Rear Ell, New Castle Hundred, 1 mile South of intersection of U.S. Route 13 & Route 40, west of Route 13, New Castle, New Castle County, DE

  10. 2. Elevation of south side of dwelling and rear ell ...

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

    2. Elevation of south side of dwelling and rear ell - McCrone House, Rear Ell, New Castle Hundred, 1 mile South of intersection of U.S. Route 13 & Route 40, west of Route 13, New Castle, New Castle County, DE

  11. Strategies for Teaching Social Studies to Elementary Level ELLs

    ERIC Educational Resources Information Center

    Weisman, Evelyn Marino; Hansen, Laurie E.

    2007-01-01

    Across the U.S., teachers are encountering students who are in the process of learning English as a second language. In the past two decades, this student population, known as English-language learners (ELLs), has more than doubled. Because of the linguistic demands of social studies content, ELLs may have particular difficulty understanding this…

  12. From the house into the ell south looking north, first ...

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

    From the house into the ell south looking north, first room has tin ceiling and crown molding, the window still has a hood but no other detail, plain trim. Exposed beam and fireplace visible in ell. - Samuel P. Grindle House, 13 School Street, Castine, Hancock County, ME

  13. Accelerometry-based berg balance scale score estimation.

    PubMed

    Simila, Heidi; Mantyjarvi, Jani; Merilahti, Juho; Lindholm, Mikko; Ermes, Miikka

    2014-07-01

    The objective of the study was to investigate the validity of 3-D-accelerometry-based Berg balance scale (BBS) score estimation. In particular, acceleration patterns of BBS tasks and gait were the targets of analysis. Accelerations of the lower back were measured during execution of the BBS test and corridor walking for 54 subjects, consisting of neurological patients, older adults, and healthy young persons. The BBS score was estimated from one to three BBS tasks and from gait-related data, separately, through assessment of the similarity of acceleration patterns between subjects. The work also validated both approaches' ability to classify subjects into high- and low-fall-risk groups. The gait-based method yielded the best BBS score estimates and the most accurate BBS-task-based estimates were produced with the stand to sit, reaching, and picking object tasks. The proposed gait-based method can identify subjects with high or low risk of falling with an accuracy of 77.8% and 96.6%, respectively, and the BBS-task based method with corresponding accuracy of 89.5% and 62.1%.

  14. Antioxidant and Antihyperlipidemic Effects of Campomanesia adamantium O. Berg Root

    PubMed Central

    Espindola, Priscilla Pereira de Toledo

    2016-01-01

    Campomanesia adamantium O. Berg, popularly known as guavira, has been used in Brazilian traditional medicine for reduction of serum lipid. The present study was carried out to investigate the antioxidant and antihyperlipidemic effects of Campomanesia adamantium root aqueous extract (ExCA). Phenolic compounds were quantified in the ExCA and gallic and ellagic acids were identified by HPLC. ExCA showed efficiency in 2,2-diphenyl-1-picrylhydrazyl free radical scavenging, with IC50 similar to butylhydroxytoluene control, and protected the erythrocytes against lipid peroxidation induced by 2,2′-azobis(2-methylpropionamidine) dihydrochloride, reducing generated malondialdehyde. Hyperlipidemic Wistar rats treated daily by gavage during eight weeks with ExCA (200 mg/kg of body weight) showed reduced serum level of total cholesterol and triglycerides, similar to normolipidemic rats and hyperlipidemic rats treated with simvastatin (30 mg/kg of body weight) and ciprofibrate (2 mg/kg of body weight). Moreover, the treatment with ExCA also decreased malondialdehyde serum level in the hyperlipidemic rats. The body weight and organ mass were unmodified by ExCA in hyperlipidemic rats, except an increase of liver mass; however, the hepatic enzymes, alanine aminotransferase and aspartate aminotransferase, were unchanged. Together, these results confirm the potential value of Campomanesia adamantium root for lowering lipid peroxidation and lipid serum level, improving risk factors for cardiometabolic diseases development. PMID:27493705

  15. Potential human health risks associated with historic ore processing at Berg Aukas, Grootfontein area, Namibia

    NASA Astrophysics Data System (ADS)

    Mapani, Benjamin; Ellmies, Rainer; Kamona, Frederick; Kříbek, Bohdan; Majer, Vladimír; Knésl, Ilja; Pašava, Jan; Mufenda, Maria; Mbingeneeko, Filadelphia

    2010-11-01

    Health risks to people living at Berg Aukas have been identified through a geochemical study of mine dumps and soils at Berg Aukas. Berg Aukas once served as a mining town, where ores of Pb, V, and Zn were mined and roasted on site until 1979. Roasting of ores produced an unintended hazardous risk in the surrounding area. For this study, soil, crops, and water from the Berg Aukas area were analysed for various pollutants. The main pollutants are metals like Pb, Zn, Cu, Cd, As, Hg and Mo. They are bound to layered silicates, to easily soluble sulphide minerals, or occur in native form. The analytical results show severe heavy metal contamination of the surface soils south and east of Berg Aukas. Crops grown at the National Youth Service, like sweet potatoes, cabbage, and Irish potatoes, accumulate heavy elements that are deleterious to health. Prolonged exposure to As and heavy metals in concentrations as found in the soils and some crops in Berg Aukas can cause severe health problems like diabetes, skin lesions, bladder problems, neurological effects, as well as skin, kidney or lung cancer. Pb affects mental development of children and Pbs to brain retardation. The study aims to help the local community to delineate no-go areas for agricultural use and to either diversify the crops grown on contaminated soils or to grow crops that are less vulnerable to high heavy metal contents in soils or transfer the crops grown on contaminated soils to areas that are not contaminated.

  16. View of southwest corner showing ell addition and carport, facing ...

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

    View of southwest corner showing ell addition and carport, facing northeast. - Albrook Air Force Station, Field Officer's Quarters, West side of Dargue Avenue Circle, Balboa, Former Panama Canal Zone, CZ

  17. 8. First Floor of c. 1900 side ell addition. View ...

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

    8. First Floor of c. 1900 side ell addition. View looking from front entrance to rear of former automotive show room. - Vaughn Chevrolet Building, 101-109 East Main Street, Monongahela, Washington County, PA

  18. View southeast, showing front elevation, side (west) elevation and ell. ...

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

    View southeast, showing front elevation, side (west) elevation and ell. Outbuildings and field stretching to west and south - Conner Homestead, Epping Road (State Route 101), Exeter, Rockingham County, NH

  19. Logarithmically enhanced corrections to the decayrate and forward backward asymmetry in \\bar B to \\ell^+ \\ell^-

    SciTech Connect

    Huber, Tobias; Hurth, Tobias; Lunghi, Enrico

    2008-01-09

    We study logarithmically enhanced electromagnetic corrections to the decay rate in the high dilepton invariant mass region as well as corrections to the forward backward asymmetry (FBA) of the inclusive rare decay {bar B} {yields} X{sub s}{ell}{sup +}{ell}{sup -}. As expected, the relative effect of these corrections in the high dilepton mass region is around -8% for the muonic final state and therefore much larger than in the low dilepton mass region. We also present a complete phenomenological analysis, to improved NNLO accuracy, of the dilepton mass spectrum and the FBA integrated in the low dilepton mass region, including a new approach to the zero of the FBA. The latter represents one of the most precise predictions in flavor physics with a theoretical uncertainty of order 5%. We find (q{sub 0}{sup 2}){mu}{mu} = (3.50 {+-} 0.12)GeV{sup 2}. For the high dilepton invariant mass region, we have {Beta}({bar B} {yields} X{sub s}{mu}{mu}){sub high} = (2.40{sub -0.62}{sup +0.69}) x 10{sup -7}. The dominant uncertainty is due to the 1/m{sub b} corrections and can be significantly reduced in the future. For the low dilepton invariant mass region, we confirm previous results up to small corrections.

  20. A Dual Coding Theoretical Model of Decoding in Reading: Subsuming the LaBerge and Samuels Model

    ERIC Educational Resources Information Center

    Sadoski, Mark; McTigue, Erin M.; Paivio, Allan

    2012-01-01

    In this article we present a detailed Dual Coding Theory (DCT) model of decoding. The DCT model reinterprets and subsumes The LaBerge and Samuels (1974) model of the reading process which has served well to account for decoding behaviors and the processes that underlie them. However, the LaBerge and Samuels model has had little to say about…

  1. Question Utilization in Solution-Focused Brief Therapy: A Recursive Frame Analysis of Insoo Kim Berg's Solution Talk

    ERIC Educational Resources Information Center

    Cotton, Jeffrey

    2010-01-01

    Recursive frame analysis (RFA) was used to conduct a single case investigation of Insoo Kim Berg's question utilization talk in a solution-focused brief therapy (SFBT) session. Due to the lack of process research that explores how SFBT questions facilitate change, the author investigated how Berg's solution language influenced a client to respond…

  2. A Dual Coding Theoretical Model of Decoding in Reading: Subsuming the LaBerge and Samuels Model

    ERIC Educational Resources Information Center

    Sadoski, Mark; McTigue, Erin M.; Paivio, Allan

    2012-01-01

    In this article we present a detailed Dual Coding Theory (DCT) model of decoding. The DCT model reinterprets and subsumes The LaBerge and Samuels (1974) model of the reading process which has served well to account for decoding behaviors and the processes that underlie them. However, the LaBerge and Samuels model has had little to say about…

  3. Ice berg cracking events as identified from underwater ambient noise measurements in the shallow waters of Ny-Alesund, Arctic

    NASA Astrophysics Data System (ADS)

    Ashokan, M.; Latha, G.; Thirunavukkarasu, A.; Raguraman, G.; Venkatesan, R.

    2016-06-01

    This paper presents the work carried out on the analysis of preliminary underwater ambient noise measurements in the shallow waters of Kongsfjorden fjord, Arctic in the summer season, in which the ice berg cracking noise is identified. In the summer period, the melting of ice cover is fast and hence the ice bergs are free to move and float in the ocean. Underwater ambient noise has been acquired in the Kongsfjorden fjord, Arctic sea on 19th July 2015 at 5 m water depth, where the ocean depth is 50 m. Due to the tensile cracks at the surface of the sea ice by thermal expansion, ice berg calving and bobbing occurred near the experiment site. Analysis of power spectra shows that ice berg calving noise falls in the frequency band 100 Hz-500 Hz and the ice berg bobbing noise falls in the frequency band 200 Hz-400 Hz.

  4. Biology, Distribution And Control Of The Cactus Moth, Cactoblastis Cactorum (Berg) (Lepidoptera: Pyralide)

    USDA-ARS?s Scientific Manuscript database

    The cactus moth, Cactoblastis cactorum (Berg) (Lepidoptera: Pyralidae) became a textbook example of successful classical biological control after it was imported from Argentina into Australia in 1926 to control invasive Opuntia cacti. To date, the moth continues to play an active role in controlling...

  5. Astronauts Lodewijk van den Berg observes growth of crystals in VCGS

    NASA Image and Video Library

    1985-04-30

    51B-06-010 (29 April-6 May 1985) --- Lodewijk van den Berg, 51-B payload specialist, observes the growth of mercuric iodide crystal in the vapor crystal growth system (VCGS) on the Spacelab 3 science module aboard the Space Shuttle Challenger.

  6. Investigation of the decaysbar B^0 to D^{* + } ell ^ - bar v andbar B to D^{**} ell ^ - bar v

    NASA Astrophysics Data System (ADS)

    Albrecht, H.; Ehrlichmann, H.; Hamacher, T.; Hofmann, R. P.; Kirchhoff, T.; Nau, A.; Nowak, S.; Schröder, H.; Schulz, H. D.; Walter, M.; Wurth, R.; Appuhn, R. D.; Hast, C.; Kolanoski, H.; Lange, A.; Lindner, A.; Mankel, R.; Schieber, M.; Siegmund, T.; Spaan, B.; Thurn, H.; Töpfer, D.; Walther, A.; Wegener, D.; Bittner, M.; Eckstein, P.; Paulini, M.; Reim, K.; Wegener, H.; Mundt, R.; Oest, T.; Reiner, R.; Schmidt-Parzefall, W.; Funk, W.; Stiewe, J.; Werner, S.; Ehret, K.; Hofmann, W.; Hüpper, A.; Khan, S.; Knöpfle, K. T.; Spengler, J.; Britton, D. I.; Charlesworth, C. E. K.; Edwards, K. W.; Hyatt, E. R. F.; Kapitza, H.; Krieger, P.; Macfarlane, D. B.; Patel, P. M.; Prentice, J. D.; Saull, P. R. B.; Tzamariudaki, K.; van de Water, R. G.; Yoon, T.; Reßing, D.; Schmidtler, M.; Schneider, M.; Schubert, K. R.; Strahl, K.; Waldi, R.; Weseler, S.; Kernel, G.; Križan, P.; Križnič, E.; Podobnik, T.; Živko, T.; Balagura, V.; Belyaev, I.; Chechelnitsky, S.; Danilov, M.; Droutskoy, A.; Gershtein, Yu.; Golutvin, A.; Gorelov, I.; Kostina, G.; Lubimov, V.; Pakhlov, P.; Ratnikov, F.; Semenov, S.; Shibaev, V.; Soloshenko, V.; Tichomirov, I.; Zaitsev, Yu.

    1993-12-01

    Exclusive semileptonic B decays with a D *+ meson in the final state have been studied using the ARGUS detector at the DORIS II storage ring. The branching ratio for the decaybar B^0 to D^{* + } ell ^ - bar v, where ℓ- is either e - or μ-, has been measured to be (5.2±0.5±0.6)%. A significant rate for the decaybar B to D^{**} ell ^ - bar v has been observed. From an angular analysis of the cascadebar B^0 to D^{* + } ( to D^0 π ^ + )ell ^ - bar v the forward-backward asymmetry A FB and the D *+ polarization parameter α have been determined to be A FB=0.20±0.08±0.06 and α=1.1±0.4±0.2.

  7. Addressing the Professional Development Awareness Needs of School Counselors regarding English Language Learners (ELLs): Using the School Cultural Capital Game to Enhance Level of Self-Efficacy with ELLs and Attitudes toward Immigrants

    ERIC Educational Resources Information Center

    Paredes, Maria Adele Brunelli

    2010-01-01

    Close to 4.6 million public school students receive English Language Learner (ELL) services (Kindler, 2002). In addition to educational gaps that exist between ELLs and their non-ELL peers, ELLs often experience significant barriers to academic success (Williams & Butler, 2003). The importance of school counselors in the success of ELLs has been…

  8. Comparing the Mini-BESTest with the Berg Balance Scale to Evaluate Balance Disorders in Parkinson's Disease.

    PubMed

    King, Laurie A; Priest, Kelsey C; Salarian, Arash; Pierce, Don; Horak, Fay B

    2012-01-01

    Objective. The purpose of this study was to explore the usefulness of the Mini-BESTest compared to the Berg Balance Scale in evaluating balance in people with PD of varying severity. We evaluated (1) the distribution of patients scores to look for ceiling effects, (2) concurrent validity with severity of disease, and (3) the sensitivity/specificity of separating people with or without postural response deficits. Subjects. Ninety-seven people with PD were tested for balance deficits using the Berg, Mini-BESTest, Unified Parkinson's Disease Rating Scale (UPDRS) III and the Hoehn & Yahr (H&Y) disease severity classification. Setting. Clinical research facility at Oregon Health & Science University. Results. The Mini-BESTest is highly correlated with the Berg (r = 0.79, P < 0.001), but avoids the ceiling compression effect of the Berg for mild PD (skewness -2.30 Berg, -0.93 Mini-BESTest). Consequently, the Mini-BESTest is more effective than the Berg for predicting UPDRS Motor score (P < 0.001 Mini-BESTest versus P = 0.86 Berg), and for discriminating between those with and without postural response deficits as measured by the H&Y (ROC differential P = 0.06). Conclusion. The Mini-BESTest is a promising tool for discerning balance deficits in patients with PD, most importantly those with more subtle deficits.

  9. The intra- and inter-rater reliabilities of the Short Form Berg Balance Scale in institutionalized elderly people.

    PubMed

    Kim, Seong-Gil; Kim, Myoung-Kwon

    2015-09-01

    [Purpose] The purpose of this study was to examine the intra- and inter-rater reliabilities of the Short Form Berg Balance Scale in institutionalized elderly people. [Subjects and Methods] A total of 30 elderly people in a nursing facility in Y city, South Korea, participated in this study. Two examiners administered the Short Form Berg Balance Scale to one subject to investigate inter-rater reliability. After a week, the same examiners administered the Short Form Berg Balance Scale once more to investigate intra-rater reliability. [Results] The intra-rater reliability was 0.83. The inter-rater reliability was 0.79. Both reliabilities were high (more than 0.7). [Conclusion] The Short Form Berg Balance Scale is a version of the Berg Balance Scale shortened by reducing the number of items, but its reliabilities were not lower than those of the Berg Balance Scale. The Short Form Berg Balance Scale can be useful clinically due to its short measurement time.

  10. One to Grow On / If I Were an ELL

    ERIC Educational Resources Information Center

    Tomlinson, Carol Ann

    2016-01-01

    While waiting for an after school meeting to begin, Carol Ann Tomlinson found herself chatting with an high school history teacher as he shared the struggle he faced to help a large population of English language learners (ELLs) who had recently arrived at his school. He spoke of how supporting these students was a new challenge for the staff, and…

  11. Mathematics Problem Solving, Literacy, and ELL for Alternative Certification Teachers

    ERIC Educational Resources Information Center

    Evans, Brian R.; Ardito, Gerald; Kim, Soonhyang

    2017-01-01

    New teachers who entered the profession through alternative pathways often teach in high-need urban environments, which means there may be a significant number of English Language Learner (ELL) students in their classrooms. In order to best support these students, techniques can be employed to best facilitate learning for students who do not have…

  12. Engaging the Families of ELLs: Ideas, Resources, and Activities

    ERIC Educational Resources Information Center

    Rubin, Renee; Abrego, Michelle H.; Sutterby, John A.

    2012-01-01

    Learn how to involve the diverse families of English language learners with the effective, practical approaches in this book. This must-have resource for teachers and school leaders is packed with fresh ideas geared toward building a partnership between school communities and ELL families. The authors begin each chapter with realistic scenarios…

  13. Does Computer Use Promote the Mathematical Proficiency of ELL Students?

    ERIC Educational Resources Information Center

    Kim, Sunha; Chang, Mido

    2010-01-01

    The study explored the effects of computer use on the mathematical performance of students with special attention to ELL students. To achieve a high generalizability of findings, the study used a U.S. nationally representative database, the Early Childhood Longitudinal Survey Kindergarten Cohort (ECLS-K), and adopted proper weights. The study…

  14. Testing Accommodations for ELL Students on an Achievement Test Battery

    ERIC Educational Resources Information Center

    Dockery, Lori Lee

    2013-01-01

    How well students perform on standardized tests can affect their educational paths and the rest of their lives. In addition, students' performances on state assessments will affect their schools due to the No Child Left Behind Act. For English language learners (ELLs), the success on tests may be diminished due to their inability to completely…

  15. Home-Language Surveys for ELLs under Fire

    ERIC Educational Resources Information Center

    Zehr, Mary Ann

    2010-01-01

    A growing chorus of people are saying that some school districts are overzealous in categorizing students as English-language learners (ELLs) in the aim of complying with federal and state laws to ensure that children of immigrants get extra help with English. They contend that the information requested on the home-language survey that parents are…

  16. Taken from ell into house, northeast looking southwest. Original back ...

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

    Taken from ell into house, northeast looking southwest. Original back stairs (now have a floor covering the opening at the top), board and batten door at base of old stairs, and closed off fireplaces behind radiators on both left and right. - Samuel P. Grindle House, 13 School Street, Castine, Hancock County, ME

  17. Reluctant Middle School ELLs: Creating Conditions for Quality Schoolwork

    ERIC Educational Resources Information Center

    Montgomery, Joel R.

    2009-01-01

    The purpose of this article is to provide middle level educators with an orientation to an intervention designed to facilitate reluctant middle school English language learners (ELLs) engagement in quality schoolwork. The article introduces a new investigation of English language learning through the lens of Glasser's Quality School and Choice…

  18. One to Grow On / If I Were an ELL

    ERIC Educational Resources Information Center

    Tomlinson, Carol Ann

    2016-01-01

    While waiting for an after school meeting to begin, Carol Ann Tomlinson found herself chatting with an high school history teacher as he shared the struggle he faced to help a large population of English language learners (ELLs) who had recently arrived at his school. He spoke of how supporting these students was a new challenge for the staff, and…

  19. Testing Accommodations for ELL Students on an Achievement Test Battery

    ERIC Educational Resources Information Center

    Dockery, Lori Lee

    2013-01-01

    How well students perform on standardized tests can affect their educational paths and the rest of their lives. In addition, students' performances on state assessments will affect their schools due to the No Child Left Behind Act. For English language learners (ELLs), the success on tests may be diminished due to their inability to completely…

  20. Reading Cooperatively or Independently? Study on ELL Student Reading Development

    ERIC Educational Resources Information Center

    Liu, Siping; Wang, Jian

    2015-01-01

    This study examines the effectiveness of cooperative reading teaching activities and independent reading activities for English language learner (ELL) students at 4th grade level. Based on simple linear regression and correlational analyses of data collected from two large data bases, PIRLS and NAEP, the study found that cooperative reading…

  1. In-Service Teachers' Perspectives on Adolescent ELL Writing Instruction

    ERIC Educational Resources Information Center

    Kibler, Amanda K.; Heny, Natasha A.; Andrei, Elena

    2016-01-01

    As writing has assumed increasing importance in discussions of pedagogy for diverse classrooms, attention to the contexts in which secondary teachers develop and implement writing instruction for adolescent English language learners (ELLs) is of great importance. Drawing on ecological language learning theories and situated teacher learning theory…

  2. Engaging the Families of ELLs: Ideas, Resources, and Activities

    ERIC Educational Resources Information Center

    Rubin, Renee; Abrego, Michelle H.; Sutterby, John A.

    2012-01-01

    Learn how to involve the diverse families of English language learners with the effective, practical approaches in this book. This must-have resource for teachers and school leaders is packed with fresh ideas geared toward building a partnership between school communities and ELL families. The authors begin each chapter with realistic scenarios…

  3. Line intersect sampling: Ell-shaped transects and multiple intersections

    Treesearch

    Timothy G. Gregoire; Harry T. Valentine

    2003-01-01

    The probability of selecting a population element under line intersect sampling depends on the width of the particle in the direction perpendicular to the transect, as is well known. The consequence of this when using ell-shaped transects rather than straight-line transects are explicated, and modifications that preserve design-unbiasedness of Kaiser's (1983)...

  4. Evaluating Growth for ELL Students: Implications for Accountability Policies

    ERIC Educational Resources Information Center

    Lakin, Joni M.; Young, John W.

    2013-01-01

    In recent years, many U.S. states have introduced growth models as part of their educational accountability systems. Although the validity of growth-based accountability models has been evaluated for the general population, the impact of those models for English language learner (ELL) students, a growing segment of the student population, has not…

  5. Content-Area Teachers Seeking ELL Preparation: What Motivates Them?

    ERIC Educational Resources Information Center

    Ardasheva, Yuliya; Brown, Sherri

    2011-01-01

    This qualitative study explored the relationship between content-area teachers' attitudes, beliefs, and professional experiences and their decisions to seek preparation in working with English language learners (ELLs). Six in-service teachers, who were enrolled in a graduate-level Sheltered Instruction course at a large U.S. Midwestern university,…

  6. ELL Preschoolers' English Vocabulary Acquisition from Storybook Reading

    ERIC Educational Resources Information Center

    Collins, Molly F.

    2010-01-01

    This study investigates the effects of rich explanation, baseline vocabulary, and home reading practices on English language learning (ELL) preschoolers' sophisticated vocabulary learning from storybook reading. Eighty typically developing preschoolers were pretested in L1 (Portuguese) and L2 (English) receptive vocabulary and were assigned to…

  7. Home-Language Surveys for ELLs under Fire

    ERIC Educational Resources Information Center

    Zehr, Mary Ann

    2010-01-01

    A growing chorus of people are saying that some school districts are overzealous in categorizing students as English-language learners (ELLs) in the aim of complying with federal and state laws to ensure that children of immigrants get extra help with English. They contend that the information requested on the home-language survey that parents are…

  8. Promise or Peril?: NCLB and the Education of ELL Students

    ERIC Educational Resources Information Center

    Clewell, Beatriz Chu

    2007-01-01

    The goal of this report is to describe the implementation of the No Child Left Behind (NCLB) Act in school districts and schools with large enrollments of English language learners (ELLs) and immigrant students. The study, drawing from previous research on the demographic characteristics of pre-K-5th grade students and of schools with high limited…

  9. Synergistic Strategies: Science for ELLs Is Science for All

    ERIC Educational Resources Information Center

    Bergman, Daniel

    2011-01-01

    The growing number of students needing additional language support requires extra time in the hectic schedule of a typical science teacher. The good news for busy teachers is that several researchers and educators have crafted methods for using "sheltered instruction" to meet the unique needs of English language learner (ELL) students:…

  10. Calif. Puts Spotlight on Long-Term ELLs

    ERIC Educational Resources Information Center

    Maxwell, Lesli A.

    2012-01-01

    California is poised to become the first state to unmask the extent to which English-language learners (ELLs) languish in public schools for years without ever reaching fluency. Under a measure that received broad, bipartisan support from the legislature, the state education department would be required to break out and report data annually on…

  11. Accelerating Academic Literacy for ELLs through Thematic Activities

    ERIC Educational Resources Information Center

    Montgomery, Joel R.

    2008-01-01

    This paper identifies a series of activities which reinforce each other and form part of a thematic unit of instruction across the content areas for English language learners (ELLs). These activities will be connected to the relevant English language proficiency (ELP) standards established at level three by the World-Class Instructional Design…

  12. Reading Cooperatively or Independently? Study on ELL Student Reading Development

    ERIC Educational Resources Information Center

    Liu, Siping; Wang, Jian

    2015-01-01

    This study examines the effectiveness of cooperative reading teaching activities and independent reading activities for English language learner (ELL) students at 4th grade level. Based on simple linear regression and correlational analyses of data collected from two large data bases, PIRLS and NAEP, the study found that cooperative reading…

  13. Synergistic Strategies: Science for ELLs Is Science for All

    ERIC Educational Resources Information Center

    Bergman, Daniel

    2011-01-01

    The growing number of students needing additional language support requires extra time in the hectic schedule of a typical science teacher. The good news for busy teachers is that several researchers and educators have crafted methods for using "sheltered instruction" to meet the unique needs of English language learner (ELL) students:…

  14. A Study of ELL Students' Writing Difficulties: A Call for Culturally, Linguistically, and Psychologically Responsive Teaching

    ERIC Educational Resources Information Center

    Lin, Show Mei

    2015-01-01

    The purpose of this study was to gain a deeper understanding of the difficulties ELL students experience in their writing development from the perspective of twenty ELL students. Through the use of questionnaires and in depth interviews, this study attempted to explore the writing needs or difficulties of ELL students. The findings indicated that…

  15. A Case Study of Data Use, Project-Based Learning, and Language Development for ELLs

    ERIC Educational Resources Information Center

    Shideler, Annette

    2016-01-01

    Teachers, both mainstream and English as a New Language (ENL), are cognizant of the many languages and learning ability levels of ELLs. They struggle to address the challenges presented by this population of students. Districts with large or small ELL populations face similar challenges: how can mainstream content be made comprehensible to ELLs to…

  16. Relationships among and between ELL Status, Demographic Characteristics, Enrollment History, and School Persistence. CRESST Report 810

    ERIC Educational Resources Information Center

    Kim, Jinok

    2011-01-01

    This report examines enrollment history, achievement gaps, and persistence in school for ELL students and reclassified ELL students as compared to non-ELL students. The study uses statewide individual-level data sets merged from students' entry to exit in the state's public school system for graduate cohorts of 2006, 2007, and 2008. Analytic…

  17. English Language Learner Resource Guide: A Guide for Rural Districts with a Low Incidence of ELLs

    ERIC Educational Resources Information Center

    Hill, Jane Donnelly; Flynn, Kathleen

    2004-01-01

    This resource guide will help rural school districts with a low incidence of English language learners (ELLs) develop the capacity to build and implement a comprehensive program that meets both the academic and language proficiency needs of ELLs. Under Title III of the No Child Left Behind Act of 2001, ELLs must show increased academic achievement…

  18. CeCu sub 4 A ell and CeCu sub 2 Zn sub 2 A ell : Very heavy fermion systems in high magnetic fields

    SciTech Connect

    Andraka, B.; Kim, J.S. . Dept. of Physics); Stewart, G.R. . Dept. of Physics Augsburg Univ. ); Fisk, Z. )

    1990-01-01

    CeCu{sub 4}A{ell} and CeCu{sub 2}Zn{sub 2}A{ell} are heavy fermion systems with extremely enhanced C/T (specific heat divided by temperature) values of 2.3 and 1.8 J/K{sup 2} respectively as T {yields} 0 K. The field dependence of the low temperature specific heat is also extreme; 11 T reduces C of CeCu{sub 4}A{ell} by more than a factor of five, 12.5 T suppresses C of CeCu{sub 2}Zn{sub 2}A{ell} about seven times. Magnetic field caused changes of the specific heat of CeCu{sub 4}A{ell} are consistent with a single ion Kondo model. Magnetic correlations are at least partially responsible for the enhanced low temperature specific heat of CeCu{sub 2}Zn{sub 2}A{ell}.

  19. Co-Teaching ELLs: Riding a Tandem Bike

    ERIC Educational Resources Information Center

    Honigsfeld, Andrea; Dove, Maria G.

    2016-01-01

    Imagine getting on the tandem bike of co-teaching. You have a lot to decide. Who sits in the front and takes the lead? Who takes the backseat? The fact is, neither classroom teachers nor secondary content-area teachers have proven eager to give up leading their lesson when they have a co-teacher present, whether to support ELLs or students with…

  20. Co-Teaching ELLs: Riding a Tandem Bike

    ERIC Educational Resources Information Center

    Honigsfeld, Andrea; Dove, Maria G.

    2016-01-01

    Imagine getting on the tandem bike of co-teaching. You have a lot to decide. Who sits in the front and takes the lead? Who takes the backseat? The fact is, neither classroom teachers nor secondary content-area teachers have proven eager to give up leading their lesson when they have a co-teacher present, whether to support ELLs or students with…

  1. Middle School Principals' Interpretation of State Policy and Guidance on Instructional Strategies for ELLs with Disabilities. ELLs with Disabilities Report 20

    ERIC Educational Resources Information Center

    Liu, Kristi; Koo, Haesook; Barrera, Manuel; Thurlow, Martha

    2008-01-01

    To better understand how school principals can provide instructional leadership appropriate for English language learners (ELLs) with disabilities, the study described in this report examined how principals of successful schools translated information to teachers on designing accessible standards-based instruction for ELLs with disabilities. The…

  2. Achievement and Language Proficiency of Latino Students in Dual Language Programmes: Native English Speakers, Fluent English/Previous ELLs, and Current ELLs

    ERIC Educational Resources Information Center

    Lindholm-Leary, Kathryn; Hernandez, Ana

    2011-01-01

    This article examines the language proficiency and achievement outcomes of Latino students enrolled in a dual language programme who varied by language proficiency (Native English speakers, Current English Language Learners--ELLs, Fluent English Proficient/Previous ELLs). Most previous research has not disaggregated Latino students, especially…

  3. Post-equinox observations of Uranus: Berg's evolution, vertical structure, and track towards the equator

    NASA Astrophysics Data System (ADS)

    de Pater, Imke; Sromovsky, L. A.; Hammel, Heidi B.; Fry, P. M.; LeBeau, R. P.; Rages, Kathy; Showalter, Mark; Matthews, Keith

    2011-09-01

    We present observations of Uranus taken with the near-infrared camera NIRC2 on the 10-m W.M. Keck II telescope, the Wide Field Planetary Camera 2 (WFPC2) and the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST) from July 2007 through November 2009. In this paper we focus on a bright southern feature, referred to as the "Berg." In Sromovsky et al. (Sromovsky, L.A., Fry, P.M., Hammel, H.B., Ahue, A.W., de Pater, I., Rages, K.A., Showalter, M.R., van Dam, M. [2009]. Icarus 203, 265-286), we reported that this feature, which oscillated between latitudes of -32° and -36° for several decades, suddenly started on a northward track in 2005. In this paper we show the complete record of observations of this feature's track towards the equator, including its demise. After an initially slow linear drift, the feature's drift rate accelerated at latitudes ∣ θ∣ < 25°. By late 2009 the feature, very faint by then, was spotted at a latitude of -5° before disappearing from view. During its northward track, the feature's morphology changed dramatically, and several small bright unresolved features were occasionally visible poleward of the main "streak." These small features were sometimes visible at a wavelength of 2.2 μm, indicative that the clouds reached altitudes of ˜0.6 bar. The main part of the Berg, which is generally a long sometimes multipart streak, is estimated to be much deeper in the atmosphere, near 3.5 bars in 2004, but rising to 1.8-2.5 bars in 2007 after it began its northward drift. Through comparisons with Neptune's Great Dark Spot and simulations of the latter, we discuss why the Berg may be tied to a vortex, an anticyclone deeper in the atmosphere that is visible only through orographic companion clouds.

  4. Ell3 stimulates 5-FU resistance in a breast cancer cell line.

    PubMed

    Kim, Isaac; Kim, Kwang-Soo; Kwon, Ok-Seon; Cha, Hyuk-Jin; Park, Kyung-Soon

    2017-06-01

    Ell3 is an RNA polymerase II transcription elongation factor that acts as a negative regulator of p53 expression, and regulates cell proliferation and survival. Recent studies by our group have demonstrated that ectopic expression of Ell3 in breast cancer cell lines enhances cell proliferation, potentiates cancer stem cell properties, and promotes 5-Fluorouracil (5-FU) resistance. In the present study, the underlying mechanism for the induction of 5-FU resistance was investigated in Ell3 over-expressing MCF-7 cells (Ell3 OE cells). By comparing the gene expression profiles of Ell3 OE cells with control cells, the present data revealed that Lipocalin2 (LCN2) and Wnt signaling activity are associated with 5-FU resistance of Ell3 OE. siRNA-mediated suppression of LCN2 reversed 5-FU resistance in Ell3 OE cells. Chemical inhibition of Wnt signaling also reversed 5-FU resistance in Ell3 OE cells. Furthermore, the expression levels of survivin, which is a direct transcriptional target of Wnt/β-catenin and an inhibitor of apoptosis, were markedly elevated when Ell3 OE cells were treated with 5-FU, as detected by western blot analysis. These findings suggest that enhanced expression of LCN2 and activation of the Wnt signaling pathway may induce 5-FU resistance in Ell3 OE cells as a means of evading apoptosis.

  5. Comparison of the Berg Balance Scale and Fullerton Advanced Balance Scale to predict falls in community-dwelling adults.

    PubMed

    Jeon, Yong-Jin; Kim, Gyoung-Mo

    2017-02-01

    [Purpose] The purpose of this study was to investigate and compare the predictive properties of Berg Balance Scale and Fullerton Advanced Balance Scales, in a group of independently-functioning community dwelling older adults. [Subjects and Methods] Ninety-seven community-dwelling older adults (male=39, female=58) who were capable of walking independently on assessment were included in this study. A binary logistic regression analysis of the Berg Balance Scale and Fullerton Advanced Balance Scale scores was used to investigate a predictive model for fall risk. A receiver operating characteristic analysis was conducted for each, to determine the cut-off for optimal levels of sensitivity and specificity. [Results] The overall prediction success rate was 89.7%; the total Berg Balance Scale and Fullerton Advanced Balance Scale scores were significant in predicting fall risk. Receiver operating characteristic analysis determined that a cut-off score of 40 out of 56 on the Berg Balance Scale produced the highest sensitivity (0.82) and specificity (0.67), and a cut-off score of 22 out of 40 on the Fullerton Advanced Balance Scale produced the highest sensitivity (0.85) and specificity (0.65) in predicting faller status. [Conclusion] The Berg Balance Scale and Fullerton Advanced Balance Scales can predict fall risk, when used for independently-functioning community-dwelling older adults.

  6. Comparison of the Berg Balance Scale and Fullerton Advanced Balance Scale to predict falls in community-dwelling adults

    PubMed Central

    Jeon, Yong-Jin; Kim, Gyoung-Mo

    2017-01-01

    [Purpose] The purpose of this study was to investigate and compare the predictive properties of Berg Balance Scale and Fullerton Advanced Balance Scales, in a group of independently-functioning community dwelling older adults. [Subjects and Methods] Ninety-seven community-dwelling older adults (male=39, female=58) who were capable of walking independently on assessment were included in this study. A binary logistic regression analysis of the Berg Balance Scale and Fullerton Advanced Balance Scale scores was used to investigate a predictive model for fall risk. A receiver operating characteristic analysis was conducted for each, to determine the cut-off for optimal levels of sensitivity and specificity. [Results] The overall prediction success rate was 89.7%; the total Berg Balance Scale and Fullerton Advanced Balance Scale scores were significant in predicting fall risk. Receiver operating characteristic analysis determined that a cut-off score of 40 out of 56 on the Berg Balance Scale produced the highest sensitivity (0.82) and specificity (0.67), and a cut-off score of 22 out of 40 on the Fullerton Advanced Balance Scale produced the highest sensitivity (0.85) and specificity (0.65) in predicting faller status. [Conclusion] The Berg Balance Scale and Fullerton Advanced Balance Scales can predict fall risk, when used for independently-functioning community-dwelling older adults. PMID:28265146

  7. Structural basis for ELL2 and AFF4 activation of HIV-1 proviral transcription.

    PubMed

    Qi, Shiqian; Li, Zichong; Schulze-Gahmen, Ursula; Stjepanovic, Goran; Zhou, Qiang; Hurley, James H

    2017-01-30

    The intrinsically disordered scaffold proteins AFF1/4 and the transcription elongation factors ELL1/2 are core components of the super elongation complex required for HIV-1 proviral transcription. Here we report the 2.0-Å resolution crystal structure of the human ELL2 C-terminal domain bound to its 50-residue binding site on AFF4, the ELLBow. The ELL2 domain has the same arch-shaped fold as the tight junction protein occludin. The ELLBow consists of an N-terminal helix followed by an extended hairpin that we refer to as the elbow joint, and occupies most of the concave surface of ELL2. This surface is important for the ability of ELL2 to promote HIV-1 Tat-mediated proviral transcription. The AFF4-ELL2 interface is imperfectly packed, leaving a cavity suggestive of a potential binding site for transcription-promoting small molecules.

  8. Structural basis for ELL2 and AFF4 activation of HIV-1 proviral transcription

    PubMed Central

    Qi, Shiqian; Li, Zichong; Schulze-Gahmen, Ursula; Stjepanovic, Goran; Zhou, Qiang; Hurley, James H.

    2017-01-01

    The intrinsically disordered scaffold proteins AFF1/4 and the transcription elongation factors ELL1/2 are core components of the super elongation complex required for HIV-1 proviral transcription. Here we report the 2.0-Å resolution crystal structure of the human ELL2 C-terminal domain bound to its 50-residue binding site on AFF4, the ELLBow. The ELL2 domain has the same arch-shaped fold as the tight junction protein occludin. The ELLBow consists of an N-terminal helix followed by an extended hairpin that we refer to as the elbow joint, and occupies most of the concave surface of ELL2. This surface is important for the ability of ELL2 to promote HIV-1 Tat-mediated proviral transcription. The AFF4–ELL2 interface is imperfectly packed, leaving a cavity suggestive of a potential binding site for transcription-promoting small molecules. PMID:28134250

  9. Raissa L. Berg's contributions to the study of phenotypic integration, with a professional biographical sketch.

    PubMed

    Conner, Jeffrey K; Lande, Russell

    2014-08-19

    Raissa L. Berg had a remarkable career in many respects and an impact on the study of phenotypic integration that continues to increase over 50 years after the publication of her seminal paper in that area. She was born and lived most of her life in Russia, with most of her research focused on measuring spontaneous mutation rates in Drosophila. She was forced to abandon this work during the height of Lysenko's power in Russia, so she turned temporarily to the study of correlation patterns in plants; ironically, this work has had a more enduring impact than her main body of research. She showed that floral and vegetative traits become decoupled into separate correlation 'pleiades' in plants with specialized pollinators, but floral and vegetative traits remain correlated in plants that have less specialized pollination. Unfortunately, her plant work is often mis-cited as providing evidence for increased correlations among floral traits due to selection by pollinators for functional integration, a point she never made and one that is not supported by her data. Still, many studies of correlation pleiades have been conducted in plants, with the results mostly supporting Berg's hypothesis, although more studies on species with generalized pollination are needed. © 2014 The Author(s) Published by the Royal Society. All rights reserved.

  10. The type-material of Arctiinae (Lepidoptera, Erebidae) described by Burmeister and Berg in the collection of the Museo Argentino de Ciencias Naturales Bernardino Rivadavia (Buenos Aires, Argentina).

    PubMed

    Beccacece, Hernán M; Vincent, Benoit; Navarro, Fernando R

    2014-01-01

    Carlos G. Burmeister and Carlos Berg were among the most important and influential naturalists and zoologists in Argentina and South America and described 241 species and 34 genera of Lepidoptera. The Museo Argentino de Ciencias Naturales Bernardino Rivadavia (MACN) housed some of the Lepidoptera type specimens of these authors. In this study we present a catalogue with complete information and photographs of 11 Burmeister type specimens and 10 Berg type specimens of Phaegopterina, Arctiina and Pericopina (Lepidoptera, Erebidae, Arctiinae, Arctiini) housed in the MACN. Lectotypes or holotypes were designated where primary type specimens could be recognized; in some cases we were not able to recognize types. The catalogue also proposes nomenclatural changes and new synonymies: Opharus picturata (Burmeister, 1878), comb. n.; Opharus brunnea Gaede, 1923: 7, syn. n.; Hypocrisias jonesi (Schaus, 1894), syn. n.; Leucanopsis infucata (Berg, 1882), stat. rev.; Paracles argentina (Berg, 1877), sp. rev.; Paracles uruguayensis (Berg, 1886), sp. rev.

  11. The type-material of Arctiinae (Lepidoptera, Erebidae) described by Burmeister and Berg in the collection of the Museo Argentino de Ciencias Naturales Bernardino Rivadavia (Buenos Aires, Argentina)

    PubMed Central

    Beccacece, Hernán M.; Vincent, Benoit; Navarro, Fernando R.

    2014-01-01

    Abstract Carlos G. Burmeister and Carlos Berg were among the most important and influential naturalists and zoologists in Argentina and South America and described 241 species and 34 genera of Lepidoptera. The Museo Argentino de Ciencias Naturales Bernardino Rivadavia (MACN) housed some of the Lepidoptera type specimens of these authors. In this study we present a catalogue with complete information and photographs of 11 Burmeister type specimens and 10 Berg type specimens of Phaegopterina, Arctiina and Pericopina (Lepidoptera, Erebidae, Arctiinae, Arctiini) housed in the MACN. Lectotypes or holotypes were designated where primary type specimens could be recognized; in some cases we were not able to recognize types. The catalogue also proposes nomenclatural changes and new synonymies: Opharus picturata (Burmeister, 1878), comb. n.; Opharus brunnea Gaede, 1923: 7, syn. n.; Hypocrisias jonesi (Schaus, 1894), syn. n.; Leucanopsis infucata (Berg, 1882), stat. rev.; Paracles argentina (Berg, 1877), sp. rev.; Paracles uruguayensis (Berg, 1886), sp. rev. PMID:25061380

  12. Sulfur "Bergs" and Sulfur Pools: Loki and Tupan Patera on Io

    NASA Astrophysics Data System (ADS)

    Howell, R. R.; Lopes, R. M.; Landis, C. E.; Allen, D. R.

    2012-12-01

    Loki and Tupan Patera on Io show numerous features related to the presence of volatiles. There are both striking similarities and distinct differences in the way the volatiles have acted at these two sites. At Loki numerous small bright features, colloquially known as sulfur "bergs", are distributed across the dark patera surface. We map their spatial distribution and spectral properties (Landis et al., this conference) and model sulfur vapor transport processes (Allen et al. this conference) to determine if those bright features are consistent with sulfur fumarole deposits. Alternatively, the "bergs" may represent topographic highs (kipukas) left un-resurfaced by the recurrent activity at Loki. To test this we examine Voyager, Galileo, and New Horizons images to determine if any changes in their spatial distribution have occurred over the 1979 through 2007 period. We also discuss further a statistical analysis of their size and spectral reflectance. Tupan shows an overall morphology similar to Loki, with a central island and one straight margin. It also shows linear features extending across the island. However instead of the dark eastern portion of the patera containing a myriad of small bright features like the Loki "bergs" which avoid the margins, Tupan shows higher albedo deposits concentrated at the margins. And in the higher albedo western portion of Tupan Patera numerous low albedo features can be interpreted as dark silicates erupting or eating through a volatile rich crust. Unlike Loki, these intra-patera features at Tupan clearly have sharply defined edges, indicating surface flow processes rather than possible vapor effects. However both outside the main Tupan Patera walls and on the island there are more diffuse patterns consistent with vapor transport. A detailed comparison of reflectance at violet through very near infrared wavelengths helps elucidate these effects. As also found at Loki, a low violet reflectance indicates that sulfur is abundant on

  13. Feasibility and Reliability of the Modified Berg Balance Scale in Persons with Severe Intellectual and Visual Disabilities

    ERIC Educational Resources Information Center

    Waninge, A.; van Wijck, R.; Steenbergen, B.; van der Schans, C. P.

    2011-01-01

    Background: The purpose of this study was to determine the feasibility and reliability of the modified Berg Balance Scale (mBBS) in persons with severe intellectual and visual disabilities (severe multiple disabilities, SMD) assigned Gross Motor Function Classification System (GMFCS) grades I and II. Method: Thirty-nine participants with SMD and…

  14. Feasibility and Reliability of the Modified Berg Balance Scale in Persons with Severe Intellectual and Visual Disabilities

    ERIC Educational Resources Information Center

    Waninge, A.; van Wijck, R.; Steenbergen, B.; van der Schans, C. P.

    2011-01-01

    Background: The purpose of this study was to determine the feasibility and reliability of the modified Berg Balance Scale (mBBS) in persons with severe intellectual and visual disabilities (severe multiple disabilities, SMD) assigned Gross Motor Function Classification System (GMFCS) grades I and II. Method: Thirty-nine participants with SMD and…

  15. Host specificity assessment and potential impact of Megamelus scutellaris Berg (Hemiptera: Delphacidae) on waterhyacinth (Eichhornia crassipes Mart. Pontederiales: Pontederiaceae)

    USDA-ARS?s Scientific Manuscript database

    The delphacid Megamelus scutellaris Berg was evaluated for host specificity and potential impact as part of a biological control program targeting E. crassipes. Survival and development of adults and nymphs were used as metrics with no-choice, choice, nymph transfer, and sustainability tests conduc...

  16. First records of the jewel beetles Chrysobothrisdesmaresti (Laporte & Gory, 1836) and Hiperanthastempelmanni Berg, 1889 (Coleoptera: Buprestidae) in Bolivia.

    PubMed

    Perger, Robert; Guerra, Fernando

    2015-01-01

    The jewel beetle species Chrysobothrisdesmaresti (Laporte & Gory, 1836) and Hiperanthastempelmanni Berg, 1889, have been recorded in Bolivia for the first time. Both species were collected on xeric Acacia trees. As indicated by their presence on Acacia and previous records, both species may be endemic to the arid intermountain valleys of the Southern Bolivian and Northern Argentinean Andes as well as the Chaco lowland forests.

  17. The Diagnostic Accuracy of the Berg Balance Scale in Predicting Falls.

    PubMed

    Park, Seong-Hi; Lee, Young-Shin

    2016-10-26

    This study aimed to evaluate the predictive validity of the Berg Balance Scale (BBS) as a screening tool for fall risks among those with varied levels of balance. A total of 21 studies reporting predictive validity of the BBS of fall risk were meta-analyzed. With regard to the overall predictive validity of the BBS, the pooled sensitivity and specificity were 0.72 and 0.73, respectively; the accuracy curve area was 0.84. The findings showed statistical heterogeneity among studies. Among the sub-groups, the age group of those younger than 65 years, those with neuromuscular disease, those with 2+ falls, and those with a cutoff point of 45 to 49 showed better sensitivity with statistically less heterogeneity. The empirical evidence indicates that the BBS is a suitable tool to screen for the risk of falls and shows good predictability when used with the appropriate criteria and applied to those with neuromuscular disease.

  18. Characterization of anthocyanins from the fruits of baguaçu (Eugenia umbelliflora Berg).

    PubMed

    Kuskoski, E Marta; Vega, José M; Rios, José J; Fett, Roseane; Troncoso, Ana M; Asuero, Agustin G

    2003-08-27

    Anthocyanin pigments in the berries of baguaçu (Eugenia umbelliflora Berg), a tropical fruit from Brazil, were extracted with 0.1% HCl in ethanol, and the crude anthocyanin extract was purified by Amberlite XAD-7 open-column chromatography. Six major anthocyanins were isolated by preparative HPLC, and their chemical structures were identified by spectroscopic methods (TLC, UV-vis, MS, and (1)H NMR). Delphinidin 3-O-beta-glucopyranoside, cyanidin 3-O-beta-glucopyranoside, petunidin 3-O-beta-glucopyranoside, pelargonidin 3-O-beta-glucopyranoside, peonidin 3-O-beta-glucopyranoside, and malvidin 3-O-beta-glucopyranoside were identified. On the basis of chromatographic data the total anthocyanin content was 342 mg/100 g of fresh baguaçu berries. Therefore, the concomitant presence of six anthocyanins in a single plant species makes this product promising as a new pigment source.

  19. ELL High School Students' Metacognitive Awareness of Reading Strategy Use and Reading Proficiency

    ERIC Educational Resources Information Center

    Hong-Nam, Kay

    2014-01-01

    This study investigated the metacognitive awareness and reading strategies use of high school-­aged English language learners (ELLs) and the relationship between ELL reading strategy use and reading proficiency as measured by a standardized reading test and self-­rated reading proficiency. Results reveal that participants reported moderate use of…

  20. An Exploratory Study of Culturally Responsive Teaching Practices for Students Who Are ELLs

    ERIC Educational Resources Information Center

    Nagarkar, Sushama

    2011-01-01

    The purpose of this study was to explore whether teacher characteristics such as teacher quality, skills in teaching English language learners (ELLs), knowledge of second language acquisition, and attitudes towards ELLs impacted teachers' perceived importance and reported use of culturally responsive practices within their classrooms. The numbers…

  1. Ask-Elle: An Adaptable Programming Tutor for Haskell Giving Automated Feedback

    ERIC Educational Resources Information Center

    Gerdes, Alex; Heeren, Bastiaan; Jeuring, Johan; van Binsbergen, L. Thomas

    2017-01-01

    Ask-Elle is a tutor for learning the higher-order, strongly-typed functional programming language Haskell. It supports the stepwise development of Haskell programs by verifying the correctness of incomplete programs, and by providing hints. Programming exercises are added to Ask-Elle by providing a task description for the exercise, one or more…

  2. Some Key Pedagogic Principles for Helping ELLs to Succeed in School

    ERIC Educational Resources Information Center

    Haneda, Mari; Wells, Gordon

    2012-01-01

    In this article, we put forward 4 pedagogic principles that we consider to be particularly important in helping English language learners (ELLs) to succeed in school. These principles are: creating multiple and varied opportunities for ELLs to use the target language in both speech and writing, promoting high engagement by building on students'…

  3. Targeted Observation of ELL Instruction as a Tool in the Preparation of School Leaders

    ERIC Educational Resources Information Center

    Baecher, Laura; Knoll, Marcia; Patti, Janet

    2016-01-01

    Preparing school administrators to promote effective instruction of English language learners (ELLs) is an important dimension of today's educational leadership programs, requiring innovative program activities. This study explores school leadership candidates' use of an observation tool targeted to ELL instruction that incorporated guided video…

  4. Toward Sustainable Educational Changes through School-Based Professional Development on ELL Assessment for New Teachers

    ERIC Educational Resources Information Center

    Kim, Youb; Erekson, James; Bunten, Bridget A.; Hinchey, Patricia

    2014-01-01

    Developing teachers' knowledge about assessing English language learners (ELLs) is critical for achieving intended policy outcomes of improving teaching under Race to the Top policy and Common Core State Standards. In addition to teachers' expressed concerns about teaching Common Core State Standards to ELLs in a national survey…

  5. Success with ELLs: Working with English Language Learners--Looking Back, Moving Forward

    ERIC Educational Resources Information Center

    DelliCarpini, Margo; Alonso, Orlando

    2013-01-01

    In the years since 2008, when the "Success with ELLs" column started, these authors have seen many changes to the educational landscape, not dealing specifically with ELLs, but having implications for their education. Probably, the most significant change has been the adoption of the Common Core State Standards (CCSS), which have no…

  6. Toward Sustainable Educational Changes through School-Based Professional Development on ELL Assessment for New Teachers

    ERIC Educational Resources Information Center

    Kim, Youb; Erekson, James; Bunten, Bridget A.; Hinchey, Patricia

    2014-01-01

    Developing teachers' knowledge about assessing English language learners (ELLs) is critical for achieving intended policy outcomes of improving teaching under Race to the Top policy and Common Core State Standards. In addition to teachers' expressed concerns about teaching Common Core State Standards to ELLs in a national survey…

  7. Some Key Pedagogic Principles for Helping ELLs to Succeed in School

    ERIC Educational Resources Information Center

    Haneda, Mari; Wells, Gordon

    2012-01-01

    In this article, we put forward 4 pedagogic principles that we consider to be particularly important in helping English language learners (ELLs) to succeed in school. These principles are: creating multiple and varied opportunities for ELLs to use the target language in both speech and writing, promoting high engagement by building on students'…

  8. Success with ELLs: Working with English Language Learners--Looking Back, Moving Forward

    ERIC Educational Resources Information Center

    DelliCarpini, Margo; Alonso, Orlando

    2013-01-01

    In the years since 2008, when the "Success with ELLs" column started, these authors have seen many changes to the educational landscape, not dealing specifically with ELLs, but having implications for their education. Probably, the most significant change has been the adoption of the Common Core State Standards (CCSS), which have no…

  9. Systematic Professional Development Training and Its Impact on Teachers' Attitudes toward ELLs: SIOP and Guided Coaching

    ERIC Educational Resources Information Center

    Song, Kim Hyunsook

    2016-01-01

    This study examined systematic professional development (PD) training and its impact on teachers' roles for and attitudes toward English language learners (ELLs). Systematic PD should compensate for theories and pedagogies not obtained during teacher education programs yet needed for content teachers with ELLs. A study was conducted to examine…

  10. Targeted Observation of ELL Instruction as a Tool in the Preparation of School Leaders

    ERIC Educational Resources Information Center

    Baecher, Laura; Knoll, Marcia; Patti, Janet

    2016-01-01

    Preparing school administrators to promote effective instruction of English language learners (ELLs) is an important dimension of today's educational leadership programs, requiring innovative program activities. This study explores school leadership candidates' use of an observation tool targeted to ELL instruction that incorporated guided video…

  11. Teacher Preparation for Instructing Middle School ELL Students: A North Carolina Piedmont Perspective

    ERIC Educational Resources Information Center

    Sox, Amanda K.

    2011-01-01

    The North Carolina Public Schools, like other schools in the southeast, have experienced phenomenal growth in their ELL student populations in the last 15 years. This fairly recent influx of ELL students raises questions about the extent to which the schools, and more specifically, the teachers, are prepared to meet the needs of their…

  12. Exploring English Language Learners (ELL) Experiences with Scientific Language and Inquiry within a Real Life Context

    ERIC Educational Resources Information Center

    Algee, Lisa M.

    2012-01-01

    English Language Learners (ELL) are often at a distinct disadvantage from receiving authentic science learning opportunites. This study explored English Language Learners (ELL) learning experiences with scientific language and inquiry within a real life context. This research was theoretically informed by sociocultural theory and literature on…

  13. Tapping into English Language Learners' (ELLs') Prior Knowledge in Social Studies Instruction

    ERIC Educational Resources Information Center

    Dong, Yu Ren

    2017-01-01

    Second language research and Culturally Relevant Pedagogy have shown a consensus that ELLs who have studied social studies in their home countries will have a better chance of understanding social studies concepts and quickly catching up to their native English-speaking peers. This article discusses strategies to make good use of ELLs' prior…

  14. The Arizona Home Language Survey: The Identification of Students for ELL Services

    ERIC Educational Resources Information Center

    Goldenberg, Claude; Rutherford-Quach, Sara

    2010-01-01

    Assuring that English language learners (ELLs) receive the services to which they have a right requires accurately identifying those students. Virtually all states identify ELLs in a two-step process. First, parents fill out a home language survey. Second, students in whose homes a language other than English is spoken and who therefore might…

  15. Ask-Elle: An Adaptable Programming Tutor for Haskell Giving Automated Feedback

    ERIC Educational Resources Information Center

    Gerdes, Alex; Heeren, Bastiaan; Jeuring, Johan; van Binsbergen, L. Thomas

    2017-01-01

    Ask-Elle is a tutor for learning the higher-order, strongly-typed functional programming language Haskell. It supports the stepwise development of Haskell programs by verifying the correctness of incomplete programs, and by providing hints. Programming exercises are added to Ask-Elle by providing a task description for the exercise, one or more…

  16. High-ELL-Growth States: Expanding Funding Equity and Opportunity for English Language Learners

    ERIC Educational Resources Information Center

    Horsford, Sonya Douglass; Sampson, Carrie

    2013-01-01

    The growing numbers of English language learners across the country provide an opportunity for state policymakers and education leaders to invest in and reap the benefits of a well-educated, culturally competent workforce. In this article, the authors review state-level ELL funding for the ten states experiencing the highest ELL population growth…

  17. Analysis of Differentiated Instruction in ELL Teachers' Professional Development: A Case Study

    ERIC Educational Resources Information Center

    Chien, Grace Chin-Wen

    2012-01-01

    Starting in the fall of 2009, ELL (English-language learner) instructional coaches began to provide workshops to ELL and general education teachers in a northwest American city. This article aims to analyze the differentiated instruction provided in the workshops. Data in this study include observational field notes, interviews, and documents.…

  18. Curcuma zedoaria (Berg.) Rosc. essential oil and paclitaxel synergistically enhance the apoptosis of SKOV3 cells.

    PubMed

    Zhou, Yunxiao; Shen, Jie; Xia, Liqun; Wang, Yanli

    2015-07-01

    Curcuma zedoaria (Berg.) Rosc. essential oil (CZEO) is the major component of Curcuma zedoaria (Berg.) Rosc., a traditional medicine with antitumor activity. Paclitaxel (PTX) is a first-line chemotherapeutic agent used to treat patients with ovarian cancer. These compounds directly target nuclear DNA, in order to suppress or inhibit tumor cell growth. The present study aimed to determine the synergistic antitumor effects of CZEO and PTX on the SKOV3 human ovarian cancer cell line. SKOV3 cells were treated with CZEO, PTX or a combination of the two and cell viability was detected using cell counting kit-8. In addition, flow cytometry was used to determined cell apoptosis as well as for cell cycle analysis. The morpho-logical changes of apoptosis were assessed using Hoechst 33342 staining and the expression levels of apoptotic pathway proteins, including caspase-3 and poly (ADP-ribose) polymerase (PARP), were quantified using western blot analysis. The cell viability assay indicated that either of these compounds alone or in combination suppressed the growth of SKOV3 cells. Furthermore, flow cytometric analysis indicated that treatment with a combination of CZEO and PTX resulted in increased inhibition of proliferation and induction of apoptosis of SKOV3 cells, as compared with treatment with either of the compounds alone. In addition, the protein expression levels of caspase-3 were increased following treatment with a combination of CZEO and PTX. The results of the present study suggested that CZEO and PTX synergistically enhanced the inhibition of SKOV3 proliferation, and the possible underlying mechanism may be the induction of cell apoptosis and cell cycle arrest. This therefore indicated that PTX supplemented with CZEO may be an effective treatment strategy to decrease the dose and toxicity of PTX.

  19. Measurements of the Semileptonic Decays \\Bb\\to D\\ell\

    SciTech Connect

    Aubert, Bernard; Bona, M.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, Vincent; Garra Tico, J.; Grauges, E.; Lopez, L.; Palano, Antimo; Pappagallo, M.; Eigen, G.; Stugu, Bjarne; Sun, L.; Abrams, G.S.; Battaglia, M.; Brown, D.N.; Cahn, Robert N.; Jacobsen, R.G.; /LBL, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa U. /Iowa State U. /Johns Hopkins U. /Karlsruhe U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Manchester U., Comp. Sci. Dept. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Consorzio Milano Ricerche /INFN, Milan /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /Napoli Seconda U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /INFN, Padua /Paris U., VI-VII /Pennsylvania U. /Perugia U. /INFN, Perugia /INFN, Pisa /Princeton U. /Banca di Roma /Frascati /Rostock U. /Rutherford /DSM, DAPNIA, Saclay /South Carolina U. /SLAC /Stanford U., Phys. Dept. /SUNY, Albany /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /INFN, Turin /Trieste U. /INFN, Trieste /Valencia U., IFIC /Victoria U. /Warwick U. /Wisconsin U., Madison

    2008-08-28

    Semileptonic {bar B} decays to DX{ell}{bar {nu}} ({ell} = e or {mu}) are selected by reconstructing D{sup 0}{ell} and D{sup +}{ell} combinations from a sample of 230 million {Upsilon}(4S) {yields} B{bar B} decays recorded with the BABAR detector at the PEP-II e{sup +}e{sup -} collider at SLAC. A global fit to these samples in a 3-dimensional space of kinematic variables is used to determine the branching fractions {Beta}(B{sup -} {yields} D{sup 0}{ell}{bar {nu}}) = 2.36 {+-} 0.03 {+-} 0.12% and {Beta}(B{sup -} {yields} D*{sup 0}{ell}{bar {nu}}) = (5.37 {+-} 0.02 {+-} 0.21)% where the errors are statistical and systematic, respectively. The fit also determines form factor parameters in a HQET-based parameterization, resulting in {rho}{sub D}{sup 2} = 1.22 {+-} 0.04 {+-} 0.07 for {bar B} {yields} D{ell}{bar {nu}} and {rho}{sub D*}{sup 2} = 1.21 {+-} 0.02 {+-} 0.07 for {bar B} {yields} D*{ell}{bar {nu}}. These values are used to obtain the product of the CKM matrix element |V{sub cb}| times the form factor at the zero recoil point for both {bar B} {yields} D{ell}{bar {nu}} decays, G(1)|V{sub cb}| = (43.8 {+-} 0.8 {+-} 2.3) x 10{sup -3}, and for {bar B} {yields} D*{ell}{bar {nu}} decays, F(1)|V{sub cb}| = (35.7 {+-} 0.2 {+-} 1.2) x 10{sup -3}.

  20. ELL targets c-Myc for proteasomal degradation and suppresses tumour growth.

    PubMed

    Chen, Yu; Zhou, Chi; Ji, Wei; Mei, Zhichao; Hu, Bo; Zhang, Wei; Zhang, Dawei; Wang, Jing; Liu, Xing; Ouyang, Gang; Zhou, Jiangang; Xiao, Wuhan

    2016-03-24

    Increasing evidence supports that ELL (eleven-nineteen lysine-rich leukaemia) is a key regulator of transcriptional elongation, but the physiological function of Ell in mammals remains elusive. Here we show that ELL functions as an E3 ubiquitin ligase and targets c-Myc for proteasomal degradation. In addition, we identify that UbcH8 serves as a ubiquitin-conjugating enzyme in this pathway. Cysteine 595 of ELL is an active site of the enzyme; its mutation to alanine (C595A) renders the protein unable to promote the ubiquitination and degradation of c-Myc. ELL-mediated c-Myc degradation inhibits c-Myc-dependent transcriptional activity and cell proliferation, and also suppresses c-Myc-dependent xenograft tumour growth. In contrast, the ELL(C595A) mutant not only loses the ability to inhibit cell proliferation and xenograft tumour growth, but also promotes tumour metastasis. Thus, our work reveals a previously unrecognized function for ELL as an E3 ubiquitin ligase for c-Myc and a potential tumour suppressor.

  1. ELL targets c-Myc for proteasomal degradation and suppresses tumour growth

    PubMed Central

    Chen, Yu; Zhou, Chi; Ji, Wei; Mei, Zhichao; Hu, Bo; Zhang, Wei; Zhang, Dawei; Wang, Jing; Liu, Xing; Ouyang, Gang; Zhou, Jiangang; Xiao, Wuhan

    2016-01-01

    Increasing evidence supports that ELL (eleven–nineteen lysine-rich leukaemia) is a key regulator of transcriptional elongation, but the physiological function of Ell in mammals remains elusive. Here we show that ELL functions as an E3 ubiquitin ligase and targets c-Myc for proteasomal degradation. In addition, we identify that UbcH8 serves as a ubiquitin-conjugating enzyme in this pathway. Cysteine 595 of ELL is an active site of the enzyme; its mutation to alanine (C595A) renders the protein unable to promote the ubiquitination and degradation of c-Myc. ELL-mediated c-Myc degradation inhibits c-Myc-dependent transcriptional activity and cell proliferation, and also suppresses c-Myc-dependent xenograft tumour growth. In contrast, the ELL(C595A) mutant not only loses the ability to inhibit cell proliferation and xenograft tumour growth, but also promotes tumour metastasis. Thus, our work reveals a previously unrecognized function for ELL as an E3 ubiquitin ligase for c-Myc and a potential tumour suppressor. PMID:27009366

  2. Effectively Educating PreK-3rd English Language Learners (ELLs) in Montgomery County Public Schools. A FCD Case Study

    ERIC Educational Resources Information Center

    Marietta, Geoff; Brookover, Elisha

    2011-01-01

    Despite skyrocketing growth in its English Language Learner (ELL) population, Montgomery County Public Schools (MCPS) has been remarkably effective in improving outcomes for ELL students across the district. Achievement has increased, and gaps between ELL students and their native English-speaking peers have decreased. This success is intentional.…

  3. Nichtlineare Dynamik kognitiv-motorischer Prozesse : tempoinduzierte Übergänge bei der Produktion von Polyrhythmen

    NASA Astrophysics Data System (ADS)

    Engbert, Ralf

    1998-02-01

    Die Produktion von Polyrhythmen ist ein wichtiger experimenteller Zugang für die Untersuchung der menschlichen Motorik. Durch Variation des Tempos (externer Kontrollparameter) bei rhythmischen Bewegungsabläufen können qualitative Übergänge in der Koordinationsdynamik induziert werden. Diese Übergänge lassen sich mit der Methode der symbolischen Dynamik in experimentellen Zeitreihen nachweisen und sind ein wichtiger Hinweis darauf, dass die untersuchten Bewegungsabläufe nichtlinearen Kontrollprozessen unterliegen. Die theoretische Beschreibung bimanueller Rhythmusproduktion mit gekoppelten Differenzengleichungen führt auf ein Modell mit nichtlinearer Fehlerkontrolle. Es ist eine wichtige Eigenschaft der Kontrollprozesse, dass sie mit zeitverzögerter Rückkopplung arbeiten. Neben deterministischen Steuerungsmechanismen ist die Motorik des Menschen ausserdem von Fluktuationen auf zwei Ebenen gekennzeichnet, der kognitiven Kontrollebene und der Ebene der motorischen Systeme. Daher ist die Koordination von Bewegungen das Ergebnis von Wechselwirkungen zwischen nichtlinearen, zeitverzögerten Kontrollprozessen und stochastischen Fluktuationen.

  4. Measurement of |V{sub cb}| using {bar B}{sup 0} {yields} D*{sup +}{ell}{sup -}{bar {nu}}{sub {ell}} Decays

    SciTech Connect

    Della Ricca, Giuseppe

    2003-08-12

    A preliminary measurement of |V{sub cb}| and the branching fraction {Beta}({bar B}{sup 0} {yields} D*{sup +}{ell}{sup -}{bar {nu}}{sub {ell}}) has been performed based on a sample of about 55,700 {bar B}{sup 0} {yields} D*{sup +}{ell}{sup -}{bar {nu}}{sub {ell}} decays recorded with the BABAR detector. The decays are identified in the D*{sup +} {yields} D{sup 0}{pi}{sup +} final state, with the D{sup 0} reconstructed in three different decay modes. The differential decay rate is measured as a function of the relativistic boost of the D*{sup +} in the {bar B}{sup 0} rest frame. The value of the differential decay rate at ''zero recoil'', namely the point at which the D*{sup +} is at rest in the {bar B}{sup 0} frame, is predicted in Heavy Quark Effective Theory as a kinematic factor times F(1)|V{sub cb}|, where F is the unique form factor governing the decay. We extrapolate the measured differential decay rate to the zero recoil point and obtain F(1)|V{sub cb}| = (34.03 {+-} 0.24 {+-} 1.31) x 10{sup -3}. Using a theoretical calculation for F(1) we extract |V{sub cb}| = (37.27 {+-} 0.26(stat.) {+-} 1.43(syst.){sub -1.2}{sup +1.5}(theo.)) x 10{sup -3}. From the integrated decay rate we obtain {Beta}({bar B}{sup 0} {yields} D*{sup +}{ell}{sup -}{bar {nu}}{sub {ell}}) = (4.68 {+-} 0.03 {+-} 0.29)%.

  5. Association between Berg Balance, Physiological Profile Assessment and Physical Activity, Physical Function and Body Composition: A Cross-sectional Study.

    PubMed

    Smee, D J; Berry, H L; Waddington, G; Anson, J

    2016-01-01

    Falls are of great concern to older adults and costly to the health system. In addition the relationship between falls risk and falls risk predictor characteristics is complex. This study aimed to explore the relationship between two objective fall-risk measures tools, the Physiological Profile Assessment and the Berg Balance Scale and to determine how an individual's sex, level of physical function, health-related and body composition characteristics impact these objective falls risk measures. A cross-sectional, observational study. 245 community-dwelling older adults (M age=68.12 years, SD=6.21; 69.8% female). Participants were assessed for falls-risk (Physiological Profile Assessment and the Berg Balance Scale), physical activity, physical functional and body composition characteristics. Pearson product-moment correlation coefficients were calculated to examine bivariate relationships and hierarchical multiple linear regression modelling was used to estimate the contribution of each predictor in explaining variance in falls-risk. In females, there was a weak association between the two objective falls-risk measures (r =-0.17 p <0.05). The number of falls in the previous 12 months explained 6% of variance in Physiological Profile Assessment scores, with bone density of the lumbar spine contributing a further 1%. In males and females, variance in the Berg Balance Scale showed that age (25%) and physical function (16% for females, 28% for males) contributed significantly to the explaining variance in the falls-risk measure. Sex differences are apparent and as such males and females should be assessed (and potentially treated) differently with regards to falls risk. Results indicate that both falls risk assessment tools measure aspects of balance but are not interchangeable. The Berg Balance Scale may be more discriminative in older, less functioning adults and the Physiological Profile Assessment is more useful in assessing falls risk in females.

  6. First records of the jewel beetles Chrysobothris desmaresti (Laporte & Gory, 1836) and Hiperantha stempelmanni Berg, 1889 (Coleoptera: Buprestidae) in Bolivia

    PubMed Central

    Guerra, Fernando

    2015-01-01

    Abstract The jewel beetle species Chrysobothris desmaresti (Laporte & Gory, 1836) and Hiperantha stempelmanni Berg, 1889, have been recorded in Bolivia for the first time. Both species were collected on xeric Acacia trees. As indicated by their presence on Acacia and previous records, both species may be endemic to the arid intermountain valleys of the Southern Bolivian and Northern Argentinean Andes as well as the Chaco lowland forests. PMID:25859126

  7. Dynamic longitudinal evaluation of the utility of the Berg Balance Scale in individuals with motor incomplete spinal cord injury.

    PubMed

    Datta, Somnath; Lorenz, Douglas J; Harkema, Susan J

    2012-09-01

    To examine the utility of the Berg Balance Scale among patients with motor incomplete spinal cord injuries (SCIs), to determine how the utility of the Berg Balance Scale changes over time with activity-based therapy, and to identify differences in scale utility across patient groups defined by status of recovery. Prospective observational cohort. The NeuroRecovery Network (NRN), a network of clinical centers for patients with motor incomplete SCI. Patients with motor incomplete SCI (n=124) with American Spinal Injury Association Impairment Scale grade C or D, who were enrolled in the NRN between February 2008 and June 2009. Standardized locomotor training. The Berg Balance Scale items were examined with longitudinal principal components analyses. Patients were categorized by phase using the Neuromuscular Recovery Scale. In the full sample, the first principal component explained a large percentage of overall scale variance (77%), items were loaded homogeneously on the first principal component, and item scores were well correlated with first principal component scores. In subgroups of low and high functioning of patients, first principal component variance accounting was reduced (49%) and only a few of the simplest and most difficult items substantially loaded onto the first principal component. Item loading coefficients evolved over time as patients recovered, with simpler items becoming less important to the full scale and difficult items more important. The utility of the Berg Balance Scale in patients with motor incomplete SCI in early and advanced phases of recovery is limited. Specific item utility changes as patients recover. Thus, a more comprehensive and dynamic instrument is necessary to adequately measure balance across the spectrum of patients with motor incomplete SCI. Copyright © 2012 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

  8. Predicting the probability for fall incidence in stroke patients using the Berg Balance Scale.

    PubMed

    Maeda, N; Kato, J; Shimada, T

    2009-01-01

    This observational study investigated the relationship between balance, mobility and falls in 72 hemiplegic stroke inpatients, with the aim of developing a model for predicting fall risk. Fall history was recorded by interview, balance was assessed using the Berg Balance Scale (BBS) and activities of daily living were evaluated using the Functional Independence Measure (FIM). Variables differing between fallers and non-fallers were identified, and a stepwise regression analysis was performed to identify a combination of variables that effectively predicted fall status. Fallers (occasional and repeat; n = 27) had a shorter time from stroke onset, lower FIM scores on admission and discharge, lower BBS and Mini-Mental State Examination scores, a greater age and longer length of hospital stay compared with non-fallers (all differences were significant). A logistic model for predicting falls showed that BBS at admission was significantly related to falls, with fallers having lower BBS scores at admission (cut-off

  9. Interobserver reproducibility of the Berg Balance Scale by novice and experienced physiotherapists.

    PubMed

    de Figueiredo, Karyna Myrelly Oliveira Bezerra; de Lima, Kenio Costa; Cavalcanti Maciel, Alvaro Campos; Guerra, Ricardo Oliveira

    2009-01-01

    This study aimed to assess the interobserver reliability of the Brazilian-Portuguese version of the Berg Balance Scale (BBS), which consists of 14 items that evaluate body balance during daily activities. The assessment was made by physiotherapists with extensive or little clinical experience in noninstitutionalized elderly individuals. Participants comprised 12 elderly subjects (10 women and 2 men) with mean ages of 75.8+/-8.4 years (range=63-87) and 18 physiotherapists with varying clinical experience. Interexaminer reliability obtained for each scale item yielded weighted kappa value >0.75 in 11 of the 14 items (varying from 0.37 to 1.0). The intraclass correlation coefficient (ICC) for the total sum of BBS scores between the two groups of physiotherapists was 0.996 (95% confidence interval, 0.987-0.999) with a Cronbach alpha coefficient of 0.996. We found no statistically significant difference between the rater groups when we compared the sum score means obtained with Student's t-test (p=0.86). Although some items had low reliability values, in general our results suggest that the Brazilian-Portuguese version of the BBS showed acceptable levels of interrater reliability and agreement when used by physiotherapists with different clinical practice levels and without previous training on noninstitutionalized elderly patients.

  10. Responsiveness of the Berg Balance Scale in patients early after stroke.

    PubMed

    Saso, Adam; Moe-Nilssen, Rolf; Gunnes, Mari; Askim, Torunn

    2016-05-01

    The Berg Balance Scale (BBS) has previously shown good measurement properties. However, its ability to detect important change in patients early after stroke is still unknown. The purpose of the present study was to determine the minimal important change (MIC) and its relation to the minimal detectable change (MDC) for BBS in patients early after stroke. This prospective follow-up study included patients within the first 2 weeks after onset of stroke. The BBS, Barthel Index, and Scandinavian Stroke Scale were obtained at inclusion and 1 month later. At the follow-up assessment, the Patient Global Impression of Change was obtained. A receiver operating characteristic (ROC) curve was used to calculate the cut-off value for the MIC. Fifty-two patients (mean age of 78.7, SD 8.5 years) were included. All measures showed a significant improvement from baseline to follow-up. The ROC analysis identified a MIC of ≥6 BBS points, while the MDC was 5.97 BBS points at the 80% confidence level. This study shows that a change of 6 BBS point or more can be considered an important change for patients in the sub-acute phase after stroke, which also represents an 80% probability of exceeding the measurement error. A total of 80% of unchanged patients would display random fluctuations within the bounds of MDC80, while 20% of unchanged patients would exceed MDC80.

  11. Capacity of adolescents with cerebral palsy on paediatric balance scale and Berg balance scale.

    PubMed

    Jantakat, Chanada; Ramrit, Sirinun; Emasithi, Alongkot; Siritaratiwat, Wantana

    2014-10-15

    The Berg balance scale (BBS) and the paediatric balance scale (PBS) are reliable tools for measuring balance ability. However, reports of BBS and PBS scores in adolescent cerebral palsy have been limited. The objectives of this study were to investigate functional balance capacities, as tested with the BBS and PBS in adolescents with cerebral palsy, to compare the total PBS and BBS scores between Gross Motor Function Classification System-Expanded and Revised (GMFCS-E&R) levels and to compare the static balance PBS and BBS scores within each GMFCS-E&R level. Fifty-eight school-aged adolescents with cerebral palsy between the ages of 12 and 18 years with GMFCS-E&R levels of I to IV were recruited. The Kruskal-Wallis test was utilized to compare the median scores for the PBS and BBS between the different GMFCS-E&R levels. Wilcoxon signed-rank tests were performed to examine the differences in the static balance scores between the PBS and the BBS within the same GMFCS-E&R levels. The results reveal that there were differences in the BBS and PBS scores among the four GMFCS-E&R levels. A significant difference was found between the BBS and PBS scores only among the patients with cerebral palsy and level III GMFCS-E&R. The BBS and PBS are valid and reliable tools for clinical examination and for distinguishing between levels of functional balance in adolescents with cerebral palsy.

  12. Relationship between the Berg Balance Scale and Static Balance Test in Hemiplegic Patients with Stroke.

    PubMed

    Suzuki, Makoto; Fujisawa, Hiroyuki; Machida, Yooichiro; Minakata, Shin

    2013-08-01

    [Purpose] The purpose of this study was to analyze the relationship between results of the Berg Balance Scale (BBS) and Static Balance Test (SBT) in hemiplegic patients with stroke. [Subjects] The subjects were 39 hemiplegic patients (25 men, 14 women; mean age, 69.4 ± 11.0 years) with stroke that had occurred within the preceding 6 months and who had good understanding of verbal instructions. [Methods] The SBT consists of five posture-holding tasks (sitting, stride standing, close standing, one-foot standing on the unparalyzed leg, and one-foot standing on the paralyzed leg). Four grades, 1-4, are used to judge the ability of patients to hold these postures. The SBT and BBS were each implemented, and the relationship between test results was analyzed using correlation coefficients. [Results] The correlation coefficient for the BBS score and SBT score was 0.87. Thus, a strong correlation was seen between the BBS and SBT. [Conclusion] The SBT is thought to be an assessment index that can predict overall balance ability.

  13. Planning and design of Berg-en-Dal, a new camp in Kruger National Park

    NASA Astrophysics Data System (ADS)

    van Riet, W. F.; Cooks, J.

    1990-05-01

    The premise of this article is that the planning and design of new rest camps in conservation areas should be based on ecological principles in such a way that the plant ecology within the camp be an integral part and extension of the natural ecology of its immediate vicinity. This is desirable so that visitors to the camp will be provided not only with facilities for resting, eating, and sleeping, but also be able to enjoy and study the natural environment in a relaxed atmosphere. The Berg-en-Dal rest camp, which was established in Kruger National Park, was planned in such a way and designed according to the principles outlined by the authors in a companion article. The planning included six zones: a control zone, day visitor zone, overnight visitor zone, staff accommodation zone, recreation zone, and service zone. The point is stressed that plant species selected to be used as additional vegetation to those already growing in the camp were endemic to the nine landscape facets identified in the camp. The design allowed for separation of the various land-use zones in such a way that they would complement each other rather than be a hindrance to each other. The camp has been built according to the plans included in this article and has proved to be a great success. The conclusion is drawn that the planning principles are sound and should be used in the future for the planning and design of rest camps for conservation areas in South Africa.

  14. Feijoa sellowiana Berg fruit juice: anti-inflammatory effect and activity on superoxide anion generation.

    PubMed

    Monforte, Maria T; Fimiani, Vincenzo; Lanuzza, Francesco; Naccari, Clara; Restuccia, Salvatore; Galati, Enza M

    2014-04-01

    Feijoa sellowiana Berg var. coolidge fruit juice was studied in vivo for the anti-inflammatory activity by carrageenin-induced paw edema test and in vitro for the effects on superoxide anion release from neutrophils in human whole blood. The fruit juice was analyzed by the high-performance liquid chromatography method, and quercetin, ellagic acid, catechin, rutin, eriodictyol, gallic acid, pyrocatechol, syringic acid, and eriocitrin were identified. The results showed a significant anti-inflammatory activity of F. sellowiana fruit juice, sustained also by an effective antioxidant activity observed in preliminary studies on 1,1-diphenyl-2-picrylhydrazyl (DPPH) test. In particular, the anti-inflammatory activity edema inhibition is significant since the first hour (44.11%) and persists until the fifth hour (44.12%) of the treatment. The effect on superoxide anion release was studied in human whole blood, in the presence of activators affecting neutrophils by different mechanisms. The juice showed an inhibiting response on neutrophils basal activity in all experimental conditions. In stimulated neutrophils, the higher inhibition of superoxide anion generation was observed at concentration of 10(-4) and 10(-2) mg/mL in whole blood stimulate with phorbol-myristate-13-acetate (PMA; 20% and 40%) and with N-formyl-methionyl-leucyl-phenylalanine (FMLP; 15% and 48%). The significant reduction of edema and the inhibition of O2(-) production, occurring mainly through interaction with protein-kinase C pathway, confirm the anti-inflammatory effect of F. sellowiana fruit juice.

  15. Inner-Shell Photoionization: Teijo A˚berg's Concept of RRRS

    NASA Astrophysics Data System (ADS)

    Armen, G. Bradley

    2003-01-01

    Teijo Åberg died on December 29, 2000 — and with his passing we have lost a gifted and important member of our community. Over the years Teijo has made many major contributions to the science of x-ray and inner-shell physics. Perhaps the most visionary of these was his idea of radiative and radiationless resonant Raman scattering (RRRRS) [1]. This arose as an outgrowth of his earlier thoughts on Auger [2] and x-ray [3] processes. It is visionary in that it attempts to unify the various aspects of inner-shell photoexcitation and decay as different aspects of the same basic process, i.e. resonant inelastic x-ray scattering. In honor and memory of Teijo, and as a last attempt to promote his ideas, I describe here the theory and some of its consequences. First, RRRRS is outlined in a semi-rigorous form, with emphasis placed on the physical nature of the concepts. Then, using the example of atomic K-shell photoionization, we see how features such as fluorescence and photoelectron lines arise in a natural way as manifestations of resonance scattering.

  16. Macrophage activation by polysaccharide biological response modifier isolated from Aloe vera L. var. chinensis (Haw.) Berg.

    PubMed

    Liu, C; Leung, M Y K; Koon, J C M; Zhu, L F; Hui, Y Z; Yu, B; Fung, K P

    2006-11-01

    A mannose-rich polysaccharide biological response modifier (BRM), derived from Aloe vera L. var. chinensis (Haw.) Berg., was demonstrated to be a potent murine B- and T-cell stimulator in our previous study. We here report the stimulatory activity of PAC-I on murine peritoneal macrophage. The polysaccharide when injected into mice enhanced the migration of macrophages to the peritoneal cavity. Peritoneal macrophage when treated by PAC-I in vitro had increased expression of MHC-II and FcgammaR, and enhanced endocytosis, phagocytosis, nitric oxide production, TNF-alpha secretion and tumor cell cytotoxicity. The administration of PAC-I into allogeneic ICR mice stimulated systemic TNF-alpha production in a dose-dependent manner and prolonged the survival of tumor-bearing mice. PAC-I is thus a potent stimulator of murine macrophage and the in vitro observed tumoricidal properties of activated macrophage might account for the in vivo antitumor properties of PAC-I. Our research findings may have therapeutic implications in tumor immunotherapy.

  17. Geochemistry and mineralogy of vanadium in mine tailings at Berg Aukas, northeastern Namibia

    NASA Astrophysics Data System (ADS)

    Sracek, O.; Mihaljevič, M.; Kříbek, B.; Majer, V.; Filip, J.; Vaněk, A.; Penížek, V.; Ettler, V.; Mapani, B.

    2014-08-01

    Vanadium-rich mine tailings at Berg Aukas, site with a world-known vanadium mineralization in northeastern Namibia, were investigated using a combination of solid phase and mineralogical analyses, leaching tests and speciation modeling. Principal objective of the study was to determine, if vanadium can be released into the environment. In spite of >30 y of weathering and oxidation of tailings material to a maximum sampling depth of 2.4 m, a large portion of V still remains in the primary mineral descloizite, (Pb, Zn)2(OH)VO4. A part of V was mobilized and adsorbed/co-precipitated with ferric oxyhydroxides. Based on sequential extraction and 57Fe Mössbauer spectroscopy, a large amount of ferric iron is present in insoluble hematite and goethite, where V is effectively bound. Other potential contaminants are Zn, present mostly in the primary mineral willemite, Zn2SiO4, descloizite and also in secondary smithsonite, ZnCO3; and Pb, which was transferred from completely dissolved galena to cerussite, PbCO3 and is also partly present in primary descloizite. Conditions in the mine tailings are alkaline (pH generally >8.2) and oxidizing during dry period, but mobility of V is low due to low solubility of descloizite and secondary crystalline ferric phases such as hematite. In contrast, Zn and especially Pb in secondary carbonates, probably represent more serious environmental and health risks.

  18. Assessments of interrater reliability and internal consistency of the Norwegian version of the Berg Balance Scale.

    PubMed

    Halsaa, Karin E; Brovold, Therese; Graver, Vibeke; Sandvik, Leiv; Bergland, Astrid

    2007-01-01

    To investigate the interrater reliability and the internal consistency of the Norwegian version of the Berg Balance Scale (BBS) when applied to patients in a geriatric department. Interrater reliability was measured using the kappa statistics and intraclass correlation coefficients (ICCs). Geriatric rehabilitation unit and geriatric day hospital in Norway. Eighty-three patients were included; 25 were inpatients in a geriatric rehabilitation unit, whereas 58 were admitted to a geriatric day hospital. Not applicable. The BBS. The kappa values for the different BBS items varied from 0.83 to 1.00, and the ICC for the sum score of the BBS was .998 (95% confidence interval, .996-.999). The mean value of the BBS was 44.4. There was a negative significant relation between age and the sum score (r=-.36). The sum scores of BBS ranged from 12 to 56. The patients were able to perform the BBS without ceiling effect. The score values 3 and 4 were more frequently used than the score values 0, 1, and 2. The Norwegian version of the BBS seems to have an excellent interrater reliability and high internal consistency when applied to patients in geriatric rehabilitation.

  19. Study of semileptonic {\\rm{\\Upsilon }}({nS}) \\rightarrow {B}_{c}{\\ell }{\\bar{\

    NASA Astrophysics Data System (ADS)

    Chang, Qin; Zhu, Jie; Wang, Xiao-Lin; Sun, Jun-Feng; Yang, Yue-Ling

    2017-01-01

    In this paper, the tree-dominated and CKM-favored {{\\Upsilon }}({nS})\\to {B}c{\\ell }{\\bar{ν }}{\\ell } (n=1,2,3) decays are studied within the Standard Model. The theoretical predictions and some discussions for the observables including the branching fractions, the ratios {R}{{\\Upsilon }({nS})}, the lepton spin asymmetries and the forward-backward asymmetries are presented. Numerically, the {{\\Upsilon }}({nS})\\to {B}c{\\ell }{\\bar{ν }}{\\ell } decays have relatively large branching fractions of the order { O }({10}-10{--}{10}-9). In addition, the feasibility of measuring these decay modes at the current heavy-flavor experiments (LHCb, CMS and Belle-II) are discussed.

  20. CCD Photometry of the Old Open Clusters ESO 093-SC08 and VandenBerg-Hagen 176

    NASA Astrophysics Data System (ADS)

    Phelps, R. L.

    2002-05-01

    Faint-magnitude CCD photometry has been obtained for the clusters ESO 093-SC08 and VandenBerg-Hagen 176. These data reveal ESO 093-SC08 to be an old open cluster, with a derived age of 5.5 +/- 1.0 Gyr, a heliocentric distance of 14.00 +/- 0.75 kpc, an inferred metallicity between -0.60 < [Fe/H] < -0.20 dex, and Galactocentric positions Rgc = 13.0 +/- 0.7 kpc and Z = -1000 +/- 50 pc. For VandenBerg-Hagen 176, a derived age of 7.0 +/- 1.5 Gyr, a heliocentric distance of 18.00 +/- 1.00 kpc, an inferred metallicity between -0.20 < [Fe/H] < 0.20 dex, and Galactocentric positions Rgc = 12.0 +/- 0.9 kpc and Z = +1350 +/- 100 pc are found. The current results for ESO 093-SC08 are in good agreement with a study by Bica et al. VandenBerg-Hagen 176 appears to be a massive metal-rich old open cluster, similar to NGC 6791, or a young, metal-rich globular cluster. This research was supported by NSF grant AST-9800216, an Oberlin College Grant-In-Aid award, and grants from the California State University, Sacramento Research and Creative Activities program. An allocation of telescope time from the Carnegie Observatories, that made this research possible, is also gratefully acknowledged.

  1. Differential Item Functioning (DIF) among Spanish-Speaking English Language Learners (ELLs) in State Science Tests

    NASA Astrophysics Data System (ADS)

    Ilich, Maria O.

    Psychometricians and test developers evaluate standardized tests for potential bias against groups of test-takers by using differential item functioning (DIF). English language learners (ELLs) are a diverse group of students whose native language is not English. While they are still learning the English language, they must take their standardized tests for their school subjects, including science, in English. In this study, linguistic complexity was examined as a possible source of DIF that may result in test scores that confound science knowledge with a lack of English proficiency among ELLs. Two years of fifth-grade state science tests were analyzed for evidence of DIF using two DIF methods, Simultaneous Item Bias Test (SIBTest) and logistic regression. The tests presented a unique challenge in that the test items were grouped together into testlets---groups of items referring to a scientific scenario to measure knowledge of different science content or skills. Very large samples of 10, 256 students in 2006 and 13,571 students in 2007 were examined. Half of each sample was composed of Spanish-speaking ELLs; the balance was comprised of native English speakers. The two DIF methods were in agreement about the items that favored non-ELLs and the items that favored ELLs. Logistic regression effect sizes were all negligible, while SIBTest flagged items with low to high DIF. A decrease in socioeconomic status and Spanish-speaking ELL diversity may have led to inconsistent SIBTest effect sizes for items used in both testing years. The DIF results for the testlets suggested that ELLs lacked sufficient opportunity to learn science content. The DIF results further suggest that those constructed response test items requiring the student to draw a conclusion about a scientific investigation or to plan a new investigation tended to favor ELLs.

  2. Physical and Functional Interactions between ELL2 and RB in the Suppression of Prostate Cancer Cell Proliferation, Migration, and Invasion.

    PubMed

    Qiu, Xiaonan; Pascal, Laura E; Song, Qiong; Zang, Yachen; Ai, Junkui; O'Malley, Katherine J; Nelson, Joel B; Wang, Zhou

    2017-03-01

    Elongation factor, RNA polymerase II, 2 (ELL2) is expressed and regulated by androgens in the prostate. ELL2 and ELL-associated factor 2 (EAF2) form a stable complex, and their orthologs in Caenorhabditis elegans appear to be functionally similar. In C. elegans, the EAF2 ortholog eaf-1 was reported to interact with the retinoblastoma (RB) pathway to control development and fertility in worms. Because RB loss is frequent in prostate cancer, ELL2 interaction with RB might be important for prostate homeostasis. The present study explored physical and functional interaction of ELL2 with RB in prostate cancer. ELL2 expression in human prostate cancer specimens was detected using quantitative polymerase chain reaction coupled with laser capture microdissection. Co-immunoprecipitation coupled with deletion mutagenesis was used to determine ELL2 association with RB. Functional interaction between ELL2 and RB was tested using siRNA knockdown, BrdU incorporation, Transwell, and/or invasion assays in LNCaP, C4-2, and 22Rv1 prostate cancer cells. ELL2 expression was downregulated in high-Gleason score prostate cancer specimens. ELL2 could be bound and stabilized by RB, and this interaction was mediated through the N-terminus of ELL2 and the C-terminus of RB. Concurrent siRNA knockdown of ELL2 and RB enhanced cell proliferation, migration, and invasion as compared to knockdown of ELL2 or RB alone in prostate cancer cells. ELL2 and RB can interact physically and functionally to suppress prostate cancer progression.

  3. Measurement of the Absolute Branching Fractions for $D^-_s\\!\\rightarrow\\!\\ell^-\\bar{\

    SciTech Connect

    del Amo Sanchez, P.; Lees, J.P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Battaglia, M.; Brown, David Nathan; Hooberman, B.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G.; Osipenkov, I.L.; Tanabe, T.; /more authors..

    2010-10-27

    The absolute branching fractions for the decays D{sub s}{sup -} {yields} {ell}{sup -}{bar {nu}}{sub {ell}} ({ell} = e, {mu}, or {tau}) are measured using a data sample corresponding to an integrated luminosity of 521 fb{sup -1} collected at center of mass energies near 10.58 GeV with the BABAR detector at the PEP-II e{sup +}e{sup -} collider at SLAC. The number of D{sub s}{sup -} mesons is determined by reconstructing the recoiling system DKX{gamma} in events of the type e{sup +}e{sup -}DKXD*{sub s}{sup -}, where D*{sub s}{sup -} {yields} D{sub s}{sup -}{gamma} and X represents additional pions from fragmentation. The D{sub s}{sup -} {yields} {ell}{sup 0}{nu}{sub {ell}} events are detected by full or partial reconstruction of the recoiling system DKX{gamma}{ell}. The branching fraction measurements are combined to determine the D{sub s}{sup -} decay constant f{sub D{sub s}} = (258.6 {+-} 6.4 {+-} 7.5) MeV, where the first uncertainty is statistical and the second is systematic.

  4. SedBerg and SedPlume Models: Simulating Sediment Delivery from Tidewater Glaciers to the Marine Environment

    NASA Astrophysics Data System (ADS)

    Mugford, R. I.; Dowdeswell, J. A.

    2009-12-01

    Glaciated fjords are dynamic sedimentary environments with high deposition rates, thus providing high-resolution sedimentary records of deglaciation and Holocene environmental change. Two numerical models, SedBerg and SedPlume, have been developed to simulate marine sedimentation from tidewater glaciers for the dominant transport processes of iceberg-rafting and glacial meltwater plumes. Icebergs calved from tidewater glaciers contain sediment, which is released as the icebergs melt. SedBerg utilises Monte Carlo based techniques to simulate the formation, drift and melt of a population of icebergs, and the subsequent deposition. Subaqueous and subaerial melt of the icebergs result in a continuous rainout of sediment with occasional sediment dumping from overturning events. Underlying the model are parametric probability distributions to describe the stochastic behaviour of iceberg production and dynamics. Turbid meltwater emerging from beneath a glacier into a fjord rises as a buoyant forced plume due to salinity and temperature contrasts with the ambient fjord water. SedPlume utilises an integral model formulation for the conservation of volume, momentum, buoyancy and sediment mass along the path of a turbulent, entraining plume injected into stably stratified ambient fluid. The resulting non-linear ordinary differential equations are solved numerically. When the plume reaches the surface, it is treated as a radially spreading surface gravity current, for which exact solutions exist for the mass flux of sediment deposited. A case study is examined for each model. SedBerg is applied to Kangerdlugssuaq Fjord, East Greenland, as an example of an iceberg-dominated depositional environment. The sedimentation rate due to iceberg rafting is simulated for Kangerdlugssuaq Fjord over the last 1500 years, with climatic, oceanographic and glacial conditions estimated from a mixture of present day measurements and inferences from the sedimentary record. SedPlume is applied to

  5. Feasibility and outcomes of the Berg Balance Scale in older adults with intellectual disabilities.

    PubMed

    Oppewal, Alyt; Hilgenkamp, Thessa I M; van Wijck, Ruud; Evenhuis, Heleen M

    2013-09-01

    High incidence of falls and increased risk of fall-related injuries are seen in individuals with intellectual disabilities (ID). The Berg Balance Scale (BBS) is a reliable instrument for balance assessment in the population of (older) adults with ID. The aims of this study were to assess the balance capacities of a large group of older adults with ID with the BBS and look for gender and age effects, as well as reasons for drop-out on separate items, and to identify feasible subtests for subgroups in which the complete BBS is not feasible. The balance capacities of 1050 older clients with borderline to profound ID of three Dutch care-provider services (mean age 61.6 [sd=8.0]) were assessed with the BBS. The participants who completed all items of the BBS (n=508) were the functionally more able part of the study sample. Results showed that even this functionally more able part had poor balance capacities, with a mean BBS score of 47.2, 95% CI [46.3, 48.0], similar to adults in the general population aged around 20 years older. Balance capacities decreased with increasing age and females had poorer balance capacities than males. Difficulties understanding the task and physical limitations were most often the reasons for drop-out. Feasible subtests were identified for the subgroups with very low cognitive levels and wheelchair users. Low balance capacities of older adults with ID show the need for regular screening and the urge for fall prevention programs for individuals with ID.

  6. Environmental isotopic and hydrochemical characteristics of groundwater from the Sandspruit Catchment, Berg River Basin, South Africa.

    PubMed

    Naicker, S; Demlie, M

    2014-01-01

    The Sandspruit catchment (a tributary of the Berg River) represents a drainage system, whereby saline groundwater with total dissolved solids (TDS) up to 10,870 mg/l, and electrical conductivity (EC) up to 2,140 mS/m has been documented. The catchment belongs to the winter rainfall region with precipitation seldom exceeding 400 mm/yr, as such, groundwater recharge occurs predominantly from May to August. Recharge estimation using the catchment water-balance method, chloride mass balance method, and qualified guesses produced recharge rates between 8 and 70 mm/yr. To understand the origin, occurrence and dynamics of the saline groundwater, a coupled analysis of major ion hydrochemistry and environmental isotopes (δ(18)O, δ(2)H and (3)H) data supported by conventional hydrogeological information has been undertaken. These spatial and multi-temporal hydrochemical and environmental isotope data provided insight into the origin, mechanisms and spatial evolution of the groundwater salinity. These data also illustrate that the saline groundwater within the catchment can be attributed to the combined effects of evaporation, salt dissolution, and groundwater mixing. The salinity of the groundwater tends to vary seasonally and evolves in the direction of groundwater flow. The stable isotope signatures further indicate two possible mechanisms of recharge; namely, (1) a slow diffuse type modern recharge through a relatively low permeability material as explained by heavy isotope signal and (2) a relatively quick recharge prior to evaporation from a distant high altitude source as explained by the relatively depleted isotopic signal and sub-modern to old tritium values.

  7. Validity of the modified Berg Balance Scale in adults with intellectual and visual disabilities.

    PubMed

    Dijkhuizen, Annemarie; Krijnen, Wim P; van der Schans, Cees P; Waninge, Aly

    2017-03-01

    A modified version of the Berg Balance Scale (mBBS) was developed for individuals with intellectual and visual disabilities (IVD). However, the concurrent and predictive validity has not yet been determined. The purpose of the current study was to evaluate the concurrent and predictive validity of the mBBS for individuals with IVD. Fifty-four individuals with IVD and Gross Motor Functioning Classification System (GMFCS) Levels I and II participated in this study. The mBBS, the Centre of Gravity (COG), the Comfortable Walking Speed (CWS), and the Barthel Index (BI) were assessed during one session in order to determine the concurrent validity. The percentage of explained variance was determined by analyzing the squared multiple correlation between the mBBS and the BI, COG, CWS, GMFCS, and age, gender, level of intellectual disability, presence of epilepsy, level of visual impairment, and presence of hearing impairment. Furthermore, an overview of the degree of dependence between the mBBS, BI, CWS, and COG was obtained by graphic modelling. Predictive validity of mBBS was determined with respect to the number of falling incidents during 26 weeks and evaluated with Zero-inflated regression models using the explanatory variables of mBBS, BI, COG, CWS, and GMFCS. The results demonstrated that two significant explanatory variables, the GMFCS Level and the BI, and one non-significant variable, the CWS, explained approximately 60% of the mBBS variance. Graphical modelling revealed that BI was the most important explanatory variable for mBBS moreso than COG and CWS. Zero-inflated regression on the frequency of falling incidents demonstrated that the mBBS was not predictive, however, COG and CWS were. The results indicated that the concurrent validity as well as the predictive validity of mBBS were low for persons with IVD. Copyright © 2017 Elsevier Ltd. All rights reserved.

  8. Validating the Berg Balance Scale for patients with Parkinson's disease: a key to rehabilitation evaluation.

    PubMed

    Qutubuddin, Abu A; Pegg, Phillip O; Cifu, David X; Brown, Rashelle; McNamee, Shane; Carne, William

    2005-04-01

    To assess the criterion-related validity of the Berg Balance Scale (BBS) in subjects with Parkinson's disease (PD). Prospective, correlational analysis between the BBS and accepted measures of PD motor and functional impairment. The federally funded PD research center, an interdisciplinary center of excellence for people with PD within a Veterans Affairs medical center. Thirty-eight men (average +/- standard deviation, 71.1+/-10.5 y) with confirmed PD. Their initial diagnosis had been made on average 5.8+/-3.6 years earlier. All could stand or walk unassisted and had mild to moderate disability. Patients who could not ambulate without assistive devices were excluded. Not applicable. Correlational analyses between the BBS and the Unified Parkinson's Disease Rating Scale (UPDRS) motor scale, Modified Hoehn and Yahr Staging (Hoehn and Yahr) Scale, and the Modified Schwab and England Capacity for Daily Living Scale (S&E ADL Scale). BBS score showed significant correlations with indicators of motor functioning, stage of disease, and daily living capacity. BBS score was inversely associated with the UPDRS motor score (-.58, P <.005), Hoehn and Yahr Scale staging (-.45, P <.005), and S&E ADL Scale rating (.55, P <.005). In all 3 correlations, lower scores on the BBS (indicating greater balance deficits) correlated with higher UPDRS scores (indicating greater motoric or functional impairment). Results support the criterion-related validity of the BBS. Its utility in other balance conditions of older adults has been established. Rehabilitation interventions have been shown to improve the balance deficits associated with PD. Early referral and periodic reassessment is vital to achieving and maintaining improvements. Our research results agree with other published research in suggesting that the BBS may be used as a screening tool and ongoing assessment tool for patients with PD.

  9. Falls in persons with spinal cord injury: validity and reliability of the Berg Balance Scale.

    PubMed

    Wirz, Markus; Müller, Roland; Bastiaenen, Caroline

    2010-01-01

    Persons with spinal cord injury who are able to walk are at risk for falls. The objectives were to investigate if the Berg Balance Scale (BBS) can discriminate those with a propensity to fall; to determine whether the BBS is associated with mobility measures, fear of falling, and muscle strength; and to assess interobserver reliability. The measurement tools used were the BBS, the Spinal Cord Independence Measure, the Falls Efficacy Scale (FES-I), the Walking Index for Spinal Cord Injury, the 10-m walk test, and the standard neurological classification including motor scores (MS). Falls were recorded retrospectively for the previous month and prospectively for the subsequent 4 months. To determine interobserver reliability, BBS performance was videotaped and analyzed by additional physical therapists. Associations between BBS and the number of falls, measures of mobility, FES-I, and MS were calculated using Spearman correlations. The interobserver reliability was quantified using Kendall's coefficient of concordance and intraclass correlation coefficients (ICCs). Forty-two participants were included of whom 26 sustained 1 or more falls. BBS performance correlated with measures of mobility, FES-I, and MS (r(s) = -.83 to .93; P < .001) but not with the number of falls (r(s) = -.17; P = .28). The interobserver reliability was excellent, both for single items (.84-.98, P < .001) and for the total score (ICC = .95; 95% confidence interval = 0.910-0.975). The BBS proved to be reliable and to relate well with other mobility measures, fear of falling, and muscle strength. However, it was unable discriminate between people who did fall and people who did not fall.

  10. Minimal Clinically Important Difference of Berg Balance Scale in People With Multiple Sclerosis.

    PubMed

    Gervasoni, Elisa; Jonsdottir, Johanna; Montesano, Angelo; Cattaneo, Davide

    2017-02-01

    To identify the minimal clinically important difference (MCID) to define clinically meaningful patient's improvement on the Berg Balance Scale (BBS) in people with multiple sclerosis (PwMS) in response to rehabilitation. Cohort study. Neurorehabilitation institute. PwMS (N=110). This study comprised inpatients and outpatients who participated in research on balance and gait rehabilitation. All received 20 rehabilitation sessions with different intensities. Inpatients received daily treatments over a period of 4 weeks, while outpatients received 2 to 3 treatments per week for 10 weeks. An anchor-based approach using clinical global impression of improvement in balance (Activities-specific Balance Confidence [ABC] Scale) was used to determine the MCID of the BBS. The MCID was defined as the minimum change in the BBS total score (postintervention - preintervention) that was needed to perceive at least a 10% improvement on the ABC Scale. Receiver operating characteristic curves were used to define the cutoff of the optimal MCID of the BBS discriminating between improved and not improved subjects. The MCID for change on the BBS was 3 points for the whole sample, 3 points for the inpatients, and 2 points for the outpatients. The area under the curve was .65 for the whole sample, .64 for inpatients, and .68 for outpatients. The MCID for improvement in balance as measured by the BBS was 3 points, meaning that PwMS are likely to perceive that as a reproducible and clinically important change in their balance performance. Copyright © 2016 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

  11. Tinetti and Berg balance scales correlate with disability in hereditary peripheral neuropathies: a preliminary study.

    PubMed

    Monti Bragadin, M; Francini, L; Bellone, E; Grandis, M; Reni, L; Canneva, S; Gemelli, C; Ursino, G; Maggi, G; Mori, L; Schenone, A

    2015-08-01

    The combination of distal muscle weakness, sensory defects and feet deformities leads to disequilibrium in patients affected by Charcot-Marie-Tooth (CMT) neuropathy. Studies relating the outcome of balance scales and clinical severity of CMT are lacking. To evaluate the accuracy of the Tinetti Balance scale (TBS) and Berg Balance scale (BBS) in identifying balance disorders and quantifying disease severity in CMT patients. Observational study. University of Genoa-IRCCS AOU San Martino IST-Department of Neurology, Italy. Nineteen individuals with a diagnosis of CMT (12 females, 7 males, age 41.26±12.42). All subjects underwent an evaluation with both TBS and BBS. Disability was quantified with CMT neuropathy score (CMTNS). Moreover, a complete neurophysiological study was performed. Distal lower limbs strength was evaluated with MRC scale. Pearson rank order correlation was used to determine the correlation between the scores on the two tests and to identify an eventual correlation between TBS or BBS and the CMTNS. Both scales showed a highly significant negative correlation with the CMTNS (r=-0.78, P<0.0005 and r=-0.77, P<0.001, respectively) and distal weakness on the anterior tibial muscles (AT) (TBS: AT left: r=0.65, P<0.005 and AT right: 0.59, P<0.01; BBS: AT left r=+0.71, P<0.001 and AT right r=+0.66, P<0.005). We found also a highly significant, positive correlation between the two different balance scales (r=+0.9, P<0.0001). TBS and BBS strongly correlate with disease disability and distal muscular weakness. Both TBS and BBS may play a relevant role in the assessment of disability in patients affected by CMT. Further studies are needed to validate our results in a larger population.

  12. CeCu{sub 4}A{ell} and CeCu{sub 2}Zn{sub 2}A{ell}: Very heavy fermion systems in high magnetic fields

    SciTech Connect

    Andraka, B.; Kim, J.S.; Stewart, G.R. |; Fisk, Z.

    1990-12-31

    CeCu{sub 4}A{ell} and CeCu{sub 2}Zn{sub 2}A{ell} are heavy fermion systems with extremely enhanced C/T (specific heat divided by temperature) values of 2.3 and 1.8 J/K{sup 2} respectively as T {yields} 0 K. The field dependence of the low temperature specific heat is also extreme; 11 T reduces C of CeCu{sub 4}A{ell} by more than a factor of five, 12.5 T suppresses C of CeCu{sub 2}Zn{sub 2}A{ell} about seven times. Magnetic field caused changes of the specific heat of CeCu{sub 4}A{ell} are consistent with a single ion Kondo model. Magnetic correlations are at least partially responsible for the enhanced low temperature specific heat of CeCu{sub 2}Zn{sub 2}A{ell}.

  13. Measurement of the Relative Branching Fractions for B^- to D/D^{*}/D^{**}(D^{(*)}\\pi) \\ell^- \\bar{\

    SciTech Connect

    Aubert, B

    2006-09-26

    We present a study of B semileptonic decays into charm final states based on 211.7 fb{sup -1} of data collected at the {Upsilon}(4S) resonance with the BABAR detector at the PEP-II e{sup +}e{sup -} storage ring. Using a novel technique based on the simultaneous fit of a set of variables reconstructed on the recoil of a B tagged in an hadronic decay mode, we measure the relative branching fractions {Lambda}(B{sup -} {yields} D{sup 0}{ell}{sup -}{bar {nu}}{sub {ell}}) = 0.611 {+-} 0.022 (stat.) {+-} 0.027 (syst.) and {Lambda}(B{sup -} {yields} D**{sup 0})(D{sup (*)}{pi}){ell}{sup -}{bar {nu}}{sub {ell}}/{Lambda}(B{sup -} {yields} DX{ell}{sup -}{bar {nu}}{sub {ell}}) = 0.173 {+-} 0.017 (stat.) {+-} 0.021 (syst.).

  14. The transcription elongation factor ELL2 is specifically upregulated in HTLV-1-infected T-cells and is dependent on the viral oncoprotein Tax

    SciTech Connect

    Mann, Melanie C. Strobel, Sarah Fleckenstein, Bernhard Kress, Andrea K.

    2014-09-15

    The oncoprotein Tax of human T-cell leukemia virus type 1 (HTLV-1) is a potent transactivator of viral and cellular transcription. Here, we identified ELL2 as the sole transcription elongation factor to be specifically upregulated in HTLV-1-/Tax-transformed T-cells. Tax contributes to regulation of ELL2, since transient transfection of Tax increases ELL2 mRNA, Tax transactivates the ELL2 promoter, and repression of Tax results in decrease of ELL2 in transformed T-lymphocytes. However, we also measured upregulation of ELL2 in HTLV-1-transformed cells exhibiting undetectable amounts of Tax, suggesting that ELL2 can still be maintained independent of continuous Tax expression. We further show that Tax and ELL2 synergistically activate the HTLV-1 promoter, indicating that ELL2 cooperates with Tax in viral transactivation. This is supported by our findings that Tax and ELL2 accumulate in nuclear fractions and that they co-precipitate upon co-expression in transiently-transfected cells. Thus, upregulation of ELL2 could contribute to HTLV-1 gene regulation. - Highlights: • ELL2, a transcription elongation factor, is upregulated in HTLV-1-positive T-cells. • Tax transactivates the ELL2 promoter. • Tax and ELL2 synergistically activate the HTLV-1 promoter. • Tax and ELL2 interact in vivo.

  15. VizieR Online Data Catalog: Metal-rich damped Lyα systems at z~2 (Berg+, 2015)

    NASA Astrophysics Data System (ADS)

    Berg, T. A. M.; Ellison, S. L.; Prochaska, J. X.; Venn, K. A.; Dessauges-Zavadsky, M.

    2016-03-01

    The comparison of the chemical evolution of DLAs to Local Group environments requires selecting several samples with accurate metal abundances. For this work, we have compiled three samples: the most metal-rich DLAs at zabs>1.5 (further called the MRDLA sample) from Berg et al. (2015PASP..127..167B, further referred to as Paper I), and two literature compilations of metal abundances in both stars and DLAs. The properties of these samples are described and compared below. All abundances (for both stars and DLAs) have been converted to the Asplund et al. (2009, ARA&A, 47, 481) meteoritic solar scale, unless otherwise stated. (3 data files).

  16. Data on cell viability of human lung fibroblasts treated with polyphenols-rich extract from Plinia trunciflora (O. Berg) Kausel).

    PubMed

    Calloni, Caroline; Silva Santos, Luciana Fernandes; Martínez, Luana Soares; Salvador, Mirian

    2016-03-01

    Jaboticaba (Plinia trunciflora (O. Berg) Kausel) is a Brazilian native berry, which presents high levels of polyphenols. Here we provide data related to the effects of the polyphenols-rich extract from jaboticaba on the cell viability, mitochondrial complex I (nicotinamide adenine dinucleotide/CoQ oxidoreductase) activity and ATP biosynthesis of human lung fibroblast cells (MRC-5) treated with amiodarone. The data presented in this article demonstrate that the polyphenols-rich extract from jaboticaba was able to reduce cell death as well as the decrease in complex I activity and ATP biosynthesis caused by amiodarone in MRC-5 cells.

  17. Data on cell viability of human lung fibroblasts treated with polyphenols-rich extract from Plinia trunciflora (O. Berg) Kausel)

    PubMed Central

    Calloni, Caroline; Silva Santos, Luciana Fernandes; Martínez, Luana Soares; Salvador, Mirian

    2016-01-01

    Jaboticaba (Plinia trunciflora (O. Berg) Kausel) is a Brazilian native berry, which presents high levels of polyphenols. Here we provide data related to the effects of the polyphenols-rich extract from jaboticaba on the cell viability, mitochondrial complex I (nicotinamide adenine dinucleotide/CoQ oxidoreductase) activity and ATP biosynthesis of human lung fibroblast cells (MRC-5) treated with amiodarone. The data presented in this article demonstrate that the polyphenols-rich extract from jaboticaba was able to reduce cell death as well as the decrease in complex I activity and ATP biosynthesis caused by amiodarone in MRC-5 cells. PMID:26870757

  18. Mercury contamination history of an estuarine floodplain reconstructed from a 210Pb-dated sediment core (Berg River, South Africa).

    PubMed

    Kading, T J; Mason, R P; Leaner, J J

    2009-01-01

    Mercury deposition histories have been scarcely documented in the southern hemisphere. A sediment core was collected from the ecologically important estuarine floodplain of the Berg River (South Africa). We establish the concentration of Hg in this (210)Pb-dated sediment core at <50 ng g(-1) Hg(T) throughout the core, but with 1.3 ng g(-1) methylmercury in surface sediments. The (210)Pb dating of the core provides a first record of mercury deposition to the site and reveals the onset of enhanced mercury deposition in 1970. The ratio of methylmercury to total mercury is relatively high in these sediments when compared to other wetlands.

  19. Drosophila ELL is associated with actively elongating RNA polymerase II on transcriptionally active sites in vivo

    PubMed Central

    Gerber, Mark; Ma, Jiyan; Dean, Kimberly; Eissenberg, Joel C.; Shilatifard, Ali

    2001-01-01

    Several factors have been biochemically characterized based on their ability to increase the overall rate of transcription elongation catalyzed by the multiprotein complex RNA polymerase II (Pol II). Among these, the ELL family of elongation factors has been shown to increase the catalytic rate of transcription elongation in vitro by suppressing transient pausing. Several fundamental biological aspects of this class of elongation factors are not known. We have cloned the Drosophila homolog (dELL) in order to test whether ELL family proteins are actually associated with the elongating Pol II in vivo. Here we report that dELL is a nuclear protein, which, like its mammalian homologs, can increase the catalytic rate of transcription elongation by Pol II in vitro. Interestingly, we find that dELL co-localizes extensively with the phosphorylated, actively elongating form of Pol II at transcriptionally active sites on Drosophila polytene chromosomes. Furthermore, dELL is relocalized from a widespread distribution pattern on polytenes under normal conditions to very few transcriptionally active puff sites upon heat shock. This observation indicates a dynamic pattern of localization of dELL in cells, which is a predicted characteristic of a Pol II general elongation factor. We also demonstrate that dELL physically interacts with Pol II. Our results strongly suggest that dELL functions with elongating RNA polymerase II in vivo. PMID:11689450

  20. The impact of science notebook writing on ELL and low-SES students' science language development and conceptual understanding

    NASA Astrophysics Data System (ADS)

    Huerta, Margarita

    This quantitative study explored the impact of literacy integration in a science inquiry classroom involving the use of science notebooks on the academic language development and conceptual understanding of students from diverse (i.e., English Language Learners, or ELLs) and low socio-economic status (low-SES) backgrounds. The study derived from a randomized, longitudinal, field-based NSF funded research project (NSF Award No. DRL - 0822343) targeting ELL and non-ELL students from low-SES backgrounds in a large urban school district in Southeast Texas. The study used a scoring rubric (modified and tested for validity and reliability) to analyze fifth-grade school students' science notebook entries. Scores for academic language quality (or, for brevity, language ) were used to compare language growth over time across three time points (i.e., beginning, middle, and end of the school year) and to compare students across categories (ELL, former ELL, non-ELL, and gender) using descriptive statistics and mixed between-within subjects analysis of variance (ANOVA). Scores for conceptual understanding (or, for brevity, concept) were used to compare students across categories (ELL, former ELL, non-ELL, and gender) in three domains using descriptive statistics and ANOVA. A correlational analysis was conducted to explore the relationship, if any, between language scores and concept scores for each group. Students demonstrated statistically significant growth over time in their academic language as reflected by science notebook scores. While ELL students scored lower than former ELL and non-ELL students at the first two time points, they caught up to their peers by the third time point. Similarly, females outperformed males in language scores in the first two time points, but males caught up to females in the third time point. In analyzing conceptual scores, ELLs had statistically significant lower scores than former-ELL and non-ELL students, and females outperformed males in

  1. The Tax oncogene enhances ELL incorporation into p300 and P-TEFb containing protein complexes to activate transcription.

    PubMed

    Fufa, Temesgen D; Byun, Jung S; Wakano, Clay; Fernandez, Alfonso G; Pise-Masison, Cynthia A; Gardner, Kevin

    2015-09-11

    The eleven-nineteen lysine-rich leukemia protein (ELL) is a key regulator of RNA polymerase II mediated transcription. ELL facilitates RNA polymerase II transcription pause site entry and release by dynamically interacting with p300 and the positive transcription elongation factor b (P-TEFb). In this study, we investigated the role of ELL during the HTLV-1 Tax oncogene induced transactivation. We show that ectopic expression of Tax enhances ELL incorporation into p300 and P-TEFb containing transcriptional complexes and the subsequent recruitment of these complexes to target genes in vivo. Depletion of ELL abrogates Tax induced transactivation of the immediate early genes Fos, Egr2 and NF-kB, suggesting that ELL is an essential cellular cofactor of the Tax oncogene. Thus, our study identifies a novel mechanism of ELL-dependent transactivation of immediate early genes by Tax and provides the rational for further defining the genome-wide targets of Tax and ELL.

  2. Evaluating College English as a Second Language (ESL) Instructors of School Support and Preparation for Teaching English Language Learners (ELLs)

    ERIC Educational Resources Information Center

    Ahmed, Abdelmonem Saad Abdelhamid

    2013-01-01

    As English language learner (ELL) students are at risk of dropping out of higher education, colleges and universities must make greater efforts to retain them. This study assessed the training quality of English as a second language (ESL) instructors in higher educational institutions in New York City to help ELL students in academics, language…

  3. Powerful Learning Tools for ELLs: Using Native Language, Familiar Examples, and Concept Mapping to Teach English Language Learners

    ERIC Educational Resources Information Center

    Dong, Yu Ren

    2013-01-01

    This article highlights how English language learners' (ELLs) prior knowledge can be used to help learn science vocabulary. The article explains that the concept of prior knowledge needs to encompass the ELL student's native language, previous science learning, native literacy skills, and native cultural knowledge and life experiences.…

  4. Reform-Oriented Mathematics in Three 6th Grade Classes: How Teachers Draw in ELLs to Academic Discourse

    ERIC Educational Resources Information Center

    Hansen-Thomas, Holly

    2009-01-01

    Traditionally, mathematics has been considered easy for English language learners (ELLs) due to the belief that math is a "universal language." At the same time, reform-oriented mathematics curricula, designed to promote mathematical discourse, are increasingly being adopted by schools serving large numbers of ELLs. CMP, the Connected Math…

  5. Powerful Learning Tools for ELLs: Using Native Language, Familiar Examples, and Concept Mapping to Teach English Language Learners

    ERIC Educational Resources Information Center

    Dong, Yu Ren

    2013-01-01

    This article highlights how English language learners' (ELLs) prior knowledge can be used to help learn science vocabulary. The article explains that the concept of prior knowledge needs to encompass the ELL student's native language, previous science learning, native literacy skills, and native cultural knowledge and life experiences.…

  6. Effective Reading Programs for Spanish Dominant English Language Learners (ELLs) in the Elementary Grades: A Synthesis of Research

    ERIC Educational Resources Information Center

    Cheung, Alan C. K.; Slavin, Robert E.

    2012-01-01

    This review synthesizes research on English reading outcomes of all types of programs for Spanish-dominant ELLs in elementary schools. It is divided into two major sections. One focuses on studies of language of instruction, and one on reading approaches for ELLs other than bilingual education. A total of 14 qualifying studies met the inclusion…

  7. The Impact of Differentiated Instructional Materials on English Language Learner (ELL) Students' Comprehension of Science Laboratory Tasks

    ERIC Educational Resources Information Center

    Manavathu, Marian; Zhou, George

    2012-01-01

    Through a qualitative research design, this article investigates the impacts of differentiated laboratory instructional materials on English language learners' (ELLs) laboratory task comprehension. The factors affecting ELLs' science learning experiences are further explored. Data analysis reveals a greater degree of laboratory task comprehension…

  8. A Comparison of the Language Skills of ELLs and Monolinguals Who Are Poor Decoders, Poor Comprehenders, or Normal Readers

    ERIC Educational Resources Information Center

    Geva, Esther; Massey-Garrison, Angela

    2013-01-01

    The overall objective of this article is to examine how oral language abilities relate to reading profiles in English language learners (ELLs) and English as a first language (EL1) learners, and the extent of similarities and differences between ELLs and EL1s in three reading subgroups: normal readers, poor decoders, and poor comprehenders. The…

  9. Top Languages Spoken by English Language Learners Nationally and by State. ELL Information Center Fact Sheet Series. No. 3

    ERIC Educational Resources Information Center

    Batalova, Jeanne; McHugh, Margie

    2010-01-01

    While English Language Learner (ELL) students in the United States speak more than 150 languages, Spanish is by far the most common home or first language, but is not the top language spoken by ELLs in every state. This fact sheet, based on analysis of the U.S. Census Bureau's 2009 American Community Survey, documents the top languages spoken…

  10. "The Biggest Problem": School Leaders' Covert Construction of Latino ELL Families--Institutional Racism in a Neoliberal Schooling Context

    ERIC Educational Resources Information Center

    Briscoe, Felecia M.

    2014-01-01

    This critical discourse analysis focuses upon the discursive construction of Latino English language learners (ELL) identity within a Texas neoliberal schooling context. Qualitative content analysis was used to examine the construction of Latino ELL identities in the discourses of Texas school leaders practicing under the aegis of neoliberal…

  11. Dropping out of School among ELL Students: Implications to Schools and Teacher Education

    ERIC Educational Resources Information Center

    Sheng, Zhaohui; Sheng, Yanyan; Anderson, Christine J.

    2011-01-01

    English language learners (ELLs) are the most rapidly growing student population in U.S. elementary and secondary schools, and this growth rate will continue throughout the next few decades. Indirect evidence has suggested that the youth population that grows the fastest has the highest risk of dropping out of school. This article reviews the…

  12. Creating Inclusive Learning Communities for ELL Students: Transforming School Principals' Perspectives

    ERIC Educational Resources Information Center

    Brooks, Katie; Adams, Susan R.; Morita-Mullaney, Trish

    2010-01-01

    School-level administrators are often concerned about tertiary supports for English language learners (ELLs), such as translating signs and school documents or offering Spanish classes for their teachers. Although modeling and learning the heritage language(s) of the ESL population can be helpful, its focus on language differences can limit our…

  13. The Relationship between Language Literacy and ELL Student Academic Performance in Mathematics

    ERIC Educational Resources Information Center

    Lawon, Molly A.

    2017-01-01

    This quantitative study used regression analysis to investigate the correlation of limited language proficiency and the performance of English Language Learner (ELL) students on two commonly used math assessments, namely the Smarter Balanced Assessment Consortium (SBAC) and the Measures of Academic Progress (MAP). Scores were analyzed for eighth…

  14. Differential Item Functioning (DIF) among Spanish-Speaking English Language Learners (ELLs) in State Science Tests

    ERIC Educational Resources Information Center

    Ilich, Maria O.

    2013-01-01

    Psychometricians and test developers evaluate standardized tests for potential bias against groups of test-takers by using differential item functioning (DIF). English language learners (ELLs) are a diverse group of students whose native language is not English. While they are still learning the English language, they must take their standardized…

  15. Professional Development and Teacher Efficacy: Contexts of What, When, and How in Serving ELLs

    ERIC Educational Resources Information Center

    Tran, Yune Kim

    2014-01-01

    The increasing numbers of ELLs (English Language Learners) in U.S. classrooms has prioritized into building quality teacher education programs for teachers so that they have the pedagogical tools necessary to support their students. A continued focus with professional development at the local, state, and national level has gained momentum to…

  16. Helping ELLs Meet Standards in English Language Arts and Science: An Intervention Focused on Academic Vocabulary

    ERIC Educational Resources Information Center

    August, Diane; Artzi, Lauren; Barr, Christopher

    2016-01-01

    The Common Core State Standards and the Next Generation Science Standards require students to understand and produce academic language that appears in informational text. Vocabulary is a critical domain of academic language, but English language learners (ELLs) come to the English Language Arts classroom with more limited English vocabulary than…

  17. Developing Teacher Capacity for Serving ELLs' Writing Instructional Needs: A Case for Systemic Functional Linguistics

    ERIC Educational Resources Information Center

    Aguirre-Munoz, Zenaida; Park, Jae-Eun; Amabisca, Anastasia; Boscardin, Christy Kim

    2008-01-01

    Although explicit grammar instruction has been a source of considerable debate in second-language teaching, increasingly educational linguists assert instruction in academic language is critical, given the current assessment reform in K-12 contexts. Of particular concern is that contemporary English-Language-Learner (ELL) instruction focuses on…

  18. "The Text Opened My Eyes": A Book Club on Teaching Writing to ELLs

    ERIC Educational Resources Information Center

    Andrei, Elena; Ellerbe, Marcie; Cherner, Todd

    2015-01-01

    This qualitative study looked at a book club for US teachers in public schools focused on teaching writing to English language learners (ELLs). To guide the study, the central research questions were: (1) What are teachers' perceptions about a book club professional development experience?; and (2) How are teachers' views about second language…

  19. Web 2.0 Technologies and Parent Involvement of ELL Students: An Ecological Perspective

    ERIC Educational Resources Information Center

    Shin, Dong-shin; Seger, Wendy

    2016-01-01

    This study explores how ELL students' parents participated in a blog-mediated English language arts curriculum in a second grade classroom at a U.S. urban school, and how they supported their children's learning of school-based writing. Adopting ecological perspectives on technological affordances, this study views digital literacy as discursive…

  20. The Impact of Discourse Features of Science Test Items on ELL Performance

    ERIC Educational Resources Information Center

    Kachchaf, Rachel; Noble, Tracy; Rosebery, Ann; Wang, Yang; Warren, Beth; O'Connor, Mary Catherine

    2014-01-01

    Most research on linguistic features of test items negatively impacting English language learners' (ELLs') performance has focused on lexical and syntactic features, rather than discourse features that operate at the level of the whole item. This mixed-methods study identified two discourse features in 162 multiple-choice items on a standardized…

  1. Why Should I Go? Florida Teachers' Perceptions of Value in ELL Professional Development

    ERIC Educational Resources Information Center

    Phillips, Jennifer J.

    2013-01-01

    Florida has undergone a 27.8% increase of ELL PreK-12 public school students within the last twenty years (www.fldoe/aala). Of the total student population in Florida, 9.4% speak 230 different languages and dialects with the highest percentage in Hispanic speakers. This is followed by Haitian-Creole, Arabic, Vietnamese, Hmong, Chinese, and Korean…

  2. When Special Education Trumps ESL: An Investigation of Service Delivery for ELLs with Disabilities

    ERIC Educational Resources Information Center

    Kangas, Sara E. N.

    2014-01-01

    Through an ethnographic study of one suburban elementary school, the delivery of services to English language learners (ELLs) with disabilities was investigated. The data analysis revealed that often disability-related and English as a Second Language (ESL) services were in contention, as scheduling, teacher expertise, school culture, and ESL…

  3. Technology in College Classrooms: An Action Research Examining the Use of Powerpoint in ELL Classrooms

    ERIC Educational Resources Information Center

    Zhang, Weiwei

    2012-01-01

    This research looks at the use of PowerPoint as an instructional tool for teaching English language learners (ELL) who studied in a language program at a state university in the Pacific Northwest. The purpose of the research was to discover and to explore the perceptions of PowerPoint supported teaching and learning that were held by the students,…

  4. "My Heart Want to Say Something": Exploring ELL Vocabulary Use through E-Mail

    ERIC Educational Resources Information Center

    Hwang, Sung-on; Piazza, Carolyn L.; Pierce, Michael J.; Bryce, Sara M.

    2011-01-01

    Purpose: The purpose of this paper is to report on one high school English-language-learner's (ELL) breadth and depth of vocabulary as he communicated with his teacher through e-mail across geographic boundaries for over 18 months. Design/methodology/approach: The authors began by separating 358 e-mails into three time periods (first beginning,…

  5. Inquiry Experiences and the Development of Science Vocabulary and Concepts with English Language Learners (ELLs)

    ERIC Educational Resources Information Center

    Oliver, Tammy Deneene

    2009-01-01

    The primary objective of this project was to analyze the change in use of academic science vocabulary and conceptual understanding of erosion by the ELLs participating in the Math, Science and Language (MSL) camp conducted in 2008. The researcher examined archival data in the form of student journals collected during the MSL camp of 2008. Current…

  6. Overview of the Common Core State Standards Initiatives for ELLs. TESOL Issue Brief

    ERIC Educational Resources Information Center

    TESOL International Association, 2013

    2013-01-01

    The purpose of this issue brief is to provide a comprehensive overview of the policies behind the Common Core State Standards (CCSS) and to outline some of the initiatives now in place to address the needs of English language learners (ELLs) in relation to the CCSS. This issue brief contains the appendices: (1) Assessment Consortia Time Lines; and…

  7. Dropping out of School among ELL Students: Implications to Schools and Teacher Education

    ERIC Educational Resources Information Center

    Sheng, Zhaohui; Sheng, Yanyan; Anderson, Christine J.

    2011-01-01

    English language learners (ELLs) are the most rapidly growing student population in U.S. elementary and secondary schools, and this growth rate will continue throughout the next few decades. Indirect evidence has suggested that the youth population that grows the fastest has the highest risk of dropping out of school. This article reviews the…

  8. The Power of Two: Lesson Study and SIOP Help Teachers Instruct ELLs

    ERIC Educational Resources Information Center

    Honigsfeld, Andrea; Cohan, Audrey

    2008-01-01

    This article discusses the combination of two professional development strategies--lesson study and the Sheltered Instruction Observation Protocol (SIOP)--which gave teachers in Freeport Public Schools, a district on Long Island, New York, new tools for improving instruction for ELLs in mainstream classrooms. The unique combination of the two…

  9. Leading from the Periphery: Collective Stories Told by English Language Learner (ELL) Leaders

    ERIC Educational Resources Information Center

    Morita-Mullaney, Patricia M.

    2014-01-01

    The purpose of this qualitative narrative study was to explore the stories of ELL leaders and how they negotiated local conditions of power, positioned themselves within leadership structures, and formed their identities. Using critical theory, critical race theory, and feminism as interpretive frames, this study addressed the marginalized status…

  10. ELL Policy and Mathematics Professional Development Colliding: Placing Teacher Experimentation within a Sociopolitical Context

    ERIC Educational Resources Information Center

    Battey, Daniel; Llamas-Flores, Silvia; Burke, Meg; Guerra, Paula; Kang, Hyun Jung; Kim, Seong Hee

    2013-01-01

    Background/Context: A number of recent policies have specifically attacked immigrants and English Language Learners (ELLs), including Georgia's HB 87 (2011), Arizona's SB 1070 (2010), and Alabama's HB 56 (2011), among others. The policy focus of this study is Arizona's HB 2064 (2006), which added additional requirements that mandate tracking…

  11. A Cross Case Analysis of Computer Use among ELL University Instructors in Taiwan

    ERIC Educational Resources Information Center

    Yang, Wan-Lin

    2012-01-01

    This study explored the use of computers by Taiwanese English language learning (ELL) teachers at Colleges of Technology in Taiwan. A cross case analysis of four teachers was undertaken to examine these teachers' actions, beliefs, and the contexts they teach in so as to illuminate issues related to the implementation of computers for instructional…

  12. A Cross Case Analysis of Computer Use among ELL University Instructors in Taiwan

    ERIC Educational Resources Information Center

    Yang, Wan-Lin

    2012-01-01

    This study explored the use of computers by Taiwanese English language learning (ELL) teachers at Colleges of Technology in Taiwan. A cross case analysis of four teachers was undertaken to examine these teachers' actions, beliefs, and the contexts they teach in so as to illuminate issues related to the implementation of computers for instructional…

  13. Developing Teacher Capacity for Serving ELLs' Writing Instructional Needs: A Case for Systemic Functional Linguistics

    ERIC Educational Resources Information Center

    Aguirre-Munoz, Zenaida; Park, Jae-Eun; Amabisca, Anastasia; Boscardin, Christy Kim

    2008-01-01

    Although explicit grammar instruction has been a source of considerable debate in second-language teaching, increasingly educational linguists assert instruction in academic language is critical, given the current assessment reform in K-12 contexts. Of particular concern is that contemporary English-Language-Learner (ELL) instruction focuses on…

  14. ELL Policy and Mathematics Professional Development Colliding: Placing Teacher Experimentation within a Sociopolitical Context

    ERIC Educational Resources Information Center

    Battey, Daniel; Llamas-Flores, Silvia; Burke, Meg; Guerra, Paula; Kang, Hyun Jung; Kim, Seong Hee

    2013-01-01

    Background/Context: A number of recent policies have specifically attacked immigrants and English Language Learners (ELLs), including Georgia's HB 87 (2011), Arizona's SB 1070 (2010), and Alabama's HB 56 (2011), among others. The policy focus of this study is Arizona's HB 2064 (2006), which added additional requirements that mandate tracking…

  15. Merging a Metalinguistic Grammar Approach with L2 Academic Process Writing: ELLs in Community College

    ERIC Educational Resources Information Center

    Camhi, Paul J.; Ebsworth, Miriam Eisenstein

    2008-01-01

    This action research study evaluates a classroom approach incorporating a reflective, metacognitive component within a second language process-oriented writing environment. Inspired by the literature and developed by the first author, this approach seeks to provide English language learners (ELLs) with a command of metalinguistic principles…

  16. Helping ELLs Meet Standards in English Language Arts and Science: An Intervention Focused on Academic Vocabulary

    ERIC Educational Resources Information Center

    August, Diane; Artzi, Lauren; Barr, Christopher

    2016-01-01

    The Common Core State Standards and the Next Generation Science Standards require students to understand and produce academic language that appears in informational text. Vocabulary is a critical domain of academic language, but English language learners (ELLs) come to the English Language Arts classroom with more limited English vocabulary than…

  17. Walking a Mile in Their Shoes: Developing Pre-Service Music Teachers' Empathy for ELL Students

    ERIC Educational Resources Information Center

    Zhang, Yiyue

    2017-01-01

    In recent decades, music educators have become increasingly aware of the English Language Learner (ELL) population due to mainstreaming and inclusion policies. Meanwhile, the need for adequately preparing pre-service music teachers has become a focal point for music teacher preparation programs in the United States. In this article, I will 1)…

  18. Vocabulary Instruction for ELL Latino Students in the Middle School Science Classroom

    ERIC Educational Resources Information Center

    Gomez, Kimberley; Madda, Christina

    2005-01-01

    Many teachers find themselves working with ELLs in content-area classes without the arsenal of tools and training that will help them help their students. This is a recounting of how one teacher, with the help of thoughtful observers and a commitment to teaching all of her students, worked to create strategies that improved language learners'…

  19. "My Heart Want to Say Something": Exploring ELL Vocabulary Use through E-Mail

    ERIC Educational Resources Information Center

    Hwang, Sung-on; Piazza, Carolyn L.; Pierce, Michael J.; Bryce, Sara M.

    2011-01-01

    Purpose: The purpose of this paper is to report on one high school English-language-learner's (ELL) breadth and depth of vocabulary as he communicated with his teacher through e-mail across geographic boundaries for over 18 months. Design/methodology/approach: The authors began by separating 358 e-mails into three time periods (first beginning,…

  20. Examining the Impact of Explicit Language Instruction in Writers Workshop on ELL Student Writing

    ERIC Educational Resources Information Center

    Wiley, Adrienne; McKernan, Jonathan

    2017-01-01

    In the context of our work as literacy specialists, we taught teachers to use sentence frames to support ELL students' writing. We then studied the impact of their instruction on students. Our analysis of student writing samples revealed no group wide developmental trends so we posed deeper questions about their work using the data analysis…

  1. Overview of the Common Core State Standards Initiatives for ELLs. TESOL Issue Brief

    ERIC Educational Resources Information Center

    TESOL International Association, 2013

    2013-01-01

    The purpose of this issue brief is to provide a comprehensive overview of the policies behind the Common Core State Standards (CCSS) and to outline some of the initiatives now in place to address the needs of English language learners (ELLs) in relation to the CCSS. This issue brief contains the appendices: (1) Assessment Consortia Time Lines; and…

  2. Strategy Inventory for Language Learning-ELL Student Form: Testing for Factorial Validity

    ERIC Educational Resources Information Center

    Ardasheva, Yuliya; Tretter, Thomas R.

    2013-01-01

    As the school-aged English language learner (ELL) population continues to grow in the United States and other English-speaking countries, psychometrically sound instruments to measure their language learning strategies (LLS) become ever more critical. This study adapted and validated an adult-oriented measure of LLS (50-item "Strategy…

  3. Guidelines for the Inclusion of English Language Learners (ELLs) in K-12 Assessments

    ERIC Educational Resources Information Center

    Iowa Department of Education, 2004

    2004-01-01

    This document provides guidelines for the inclusion of English Language Learners (ELLs) in K-12 assessments. Twenty questions and answers are provided, along with a list of references. The following are appended: (1) Placement Tools for English Language Learners; (2) Definitions; (3) Typical Bilingual Program Designs; (4) Typical ESL Program…

  4. Success with ELLs: Summertime and the Living Is Easy--Retaining English Skills in Summer

    ERIC Educational Resources Information Center

    DelliCarpini, Margo, Ed.

    2009-01-01

    Although summer is a glorious time for many, with a summer off, comes the real issue of potential loss of skills. When English language learning is taken into account, summer has an even greater potential for backslide not only in terms of content but also in English language development. For some ELLs, a summer away from school can also mean a…

  5. Helping English Language Learners (ELLS) Achieve Success (Passing Grades) in the Mainstream Classroom

    ERIC Educational Resources Information Center

    Ingerson, Tara

    2011-01-01

    Our world is globalizing at a rapid rate right before our eyes. The world as we know it is becoming much more diverse and colorful. The population of school-aged English language learner (ELL) students in the USA has steadily and markedly increased over the past decade with projections indicating that this trend will continue. If the trend…

  6. Web 2.0 Technologies and Parent Involvement of ELL Students: An Ecological Perspective

    ERIC Educational Resources Information Center

    Shin, Dong-shin; Seger, Wendy

    2016-01-01

    This study explores how ELL students' parents participated in a blog-mediated English language arts curriculum in a second grade classroom at a U.S. urban school, and how they supported their children's learning of school-based writing. Adopting ecological perspectives on technological affordances, this study views digital literacy as discursive…

  7. Colorin Colorado! ELL Starter Kit for Educators: Tools for Monitoring Language Skills

    ERIC Educational Resources Information Center

    American Federation of Teachers (NJ), 2007

    2007-01-01

    Keeping periodic track of the progress English language learners (ELLs) are making in their second language acquisition skills is essential. Learning a second language is a complex process. It's important for educators to gauge each student's abilities and skills regularly; each English language learner will acquire second language knowledge and…

  8. Inquiry Experiences and the Development of Science Vocabulary and Concepts with English Language Learners (ELLs)

    ERIC Educational Resources Information Center

    Oliver, Tammy Deneene

    2009-01-01

    The primary objective of this project was to analyze the change in use of academic science vocabulary and conceptual understanding of erosion by the ELLs participating in the Math, Science and Language (MSL) camp conducted in 2008. The researcher examined archival data in the form of student journals collected during the MSL camp of 2008. Current…

  9. Growth in Oral Reading Fluency of Spanish ELL Students with Learning Disabilities

    ERIC Educational Resources Information Center

    Rubin, Daniel Ian

    2016-01-01

    The process of learning to read is difficult for many children, and this is especially true for students with learning disabilities (LD). Reading in English becomes even more difficult when a student's home language is not English. For English language learner (ELL) students with LD, acquiring the necessary skills to read fluently is an even…

  10. Success with ELLs: We Are All Writers! Building Second Language Writing Skills in the ELA Classroom

    ERIC Educational Resources Information Center

    DelliCarpini, Margo

    2012-01-01

    Writing effectively in a second language can be one of the most challenging tasks second language learners must undertake and master. English teachers are in a good position to implement the types of supports that can move ELLs toward success in academic writing by providing exposure to and practice with different genres of academic writing,…

  11. Second-Generation Challenges for Making Content Assessments Accessible for ELLs

    ERIC Educational Resources Information Center

    Kopriva, Rebecca J.

    2014-01-01

    In this commentary, Rebecca Kopriva examines the articles in this special issue by drawing on her experience from three series of investigations examining how English language learners (ELLs) and other students perceive what test items ask and how they can successfully represent what they know. The first series examined the effect of different…

  12. When Special Education Trumps ESL: An Investigation of Service Delivery for ELLs with Disabilities

    ERIC Educational Resources Information Center

    Kangas, Sara E. N.

    2014-01-01

    Through an ethnographic study of one suburban elementary school, the delivery of services to English language learners (ELLs) with disabilities was investigated. The data analysis revealed that often disability-related and English as a Second Language (ESL) services were in contention, as scheduling, teacher expertise, school culture, and ESL…

  13. Leading from the Periphery: Collective Stories Told by English Language Learner (ELL) Leaders

    ERIC Educational Resources Information Center

    Morita-Mullaney, Patricia M.

    2014-01-01

    The purpose of this qualitative narrative study was to explore the stories of ELL leaders and how they negotiated local conditions of power, positioned themselves within leadership structures, and formed their identities. Using critical theory, critical race theory, and feminism as interpretive frames, this study addressed the marginalized status…

  14. Empowering ELLs through Strong Community-School District Partnerships for Enrichment

    ERIC Educational Resources Information Center

    Rivera, Jessica; Donovan-Pendzic, Esperanza; Marion, Mary Jo

    2015-01-01

    The English Language Learner (ELL) Summer Camp in Worcester, Massachusetts--an intensive six-week program that served middle school and high school students from Worcester Public Schools (WPS)--was the product of a five-way partnership that included the school district, higher education institutions (Latino Education Institute [LEI] at Worcester…

  15. Strategy Inventory for Language Learning-ELL Student Form: Testing for Factorial Validity

    ERIC Educational Resources Information Center

    Ardasheva, Yuliya; Tretter, Thomas R.

    2013-01-01

    As the school-aged English language learner (ELL) population continues to grow in the United States and other English-speaking countries, psychometrically sound instruments to measure their language learning strategies (LLS) become ever more critical. This study adapted and validated an adult-oriented measure of LLS (50-item "Strategy…

  16. [Erwin H. Ackerknecht and the Berg/Rath Affair in 1964. On the coping of German medical historians with their history].

    PubMed

    Morgeli, C; Jobmann, A

    1997-01-01

    In 1964, the Zurich medical historian Erwin H. Ackerknect announced his decision to resign from the German Society of Medical History, Natural Science and Technology (Deutsche Gesellschaft fur Geschichte der Medizin, Naturwissenschaft und Technik - DGGMNT) in a letter to 150 colleagues and prominent personalities in scientific, academic and political circles. Ackerknecht explained that he was resigning from the Society because the medical faculty of the University of Gottingen, supported by its professor of medical history, Gernot Rath - also chairman of the DGGMNT - had awarded the Venia legendi medical history chair to the x-ray specialist and medical historian Alexander Berg. Berg was ideologically compromised by his co-authorship of a book that embraced the ideals of National Socialism and in which he was mentioned as a Obersturmfuhrer of SS. Apart from describing the events surrounding Berg's promotion to the teaching position, this article presents Ackerknecht's perspective on the situation, the continuing influence of further Nazi era's leading historians of medicine the war - enabling Berg to assume his position - as well as the DGGMNT's controversial reactions to Ackerknecht's resignation and the consequences that the affair was to have for the Society.

  17. Commentary: The course of depression after childhood parental death - a reflection on Berg et al. (2016).

    PubMed

    Melhem, Nadine M; Brent, David

    2016-12-01

    Berg et al.'s study highlights the long-lasting impact of childhood parental death on depression in adulthood in the absence of early preventive and intervention efforts. Given the long-term effects of childhood parental death, it seems that the most propitious time to intervene is early on after the death. Several prevention and intervention approaches have been shown to reduce the incidence of depression and to ameliorate its course and thus could be potential approaches to intervene with parentally bereaved children. Future longitudinal studies focused on children and adolescents are also needed to examine the biological pathways that set the stage for increased vulnerability across the life span following childhood parental death and adversity in order to inform novel targets for interventions. © 2016 Association for Child and Adolescent Mental Health.

  18. Exploring English Language Learners (ELL) experiences with scientific language and inquiry within a real life context

    NASA Astrophysics Data System (ADS)

    Algee, Lisa M.

    English Language Learners (ELL) are often at a distinct disadvantage from receiving authentic science learning opportunites. This study explored English Language Learners (ELL) learning experiences with scientific language and inquiry within a real life context. This research was theoretically informed by sociocultural theory and literature on student learning and science teaching for ELL. A qualitative, case study was used to explore students' learning experiences. Data from multiple sources was collected: student interviews, science letters, an assessment in another context, field-notes, student presentations, inquiry assessment, instructional group conversations, parent interviews, parent letters, parent homework, teacher-researcher evaluation, teacher-researcher reflective journal, and student ratings of learning activities. These data sources informed the following research questions: (1) Does participation in an out-of-school contextualized inquiry science project increase ELL use of scientific language? (2) Does participation in an out-of-school contextualized inquiry science project increase ELL understanding of scientific inquiry and their motivation to learn? (3) What are parents' funds of knowledge about the local ecology and does this inform students' experiences in the science project? All data sources concerning students were analyzed for similar patterns and trends and triangulation was sought through the use of these data sources. The remaining data sources concerning the teacher-researcher were used to inform and assess whether the pedagogical and research practices were in alignment with the proposed theoretical framework. Data sources concerning parental participation accessed funds of knowledge, which informed the curriculum in order to create continuity and connections between home and school. To ensure accuracy in the researchers' interpretations of student and parent responses during interviews, member checking was employed. The findings

  19. Experiencing the Needs and Challenges of ELLs: Improving Knowledge and Efficacy of Pre-Service Teachers through the Use of a Language Immersion Simulation

    ERIC Educational Resources Information Center

    Wright-Maley, Cory; Green, Jennifer D.

    2015-01-01

    Pre-service teachers need to understand how to support ELLs in their future classrooms, yet evidence suggests that pre-service ELL training may not be as effective as we need it to be. One promising strategy for increasing pre-service teachers' efficacy and knowledge around teaching ELLs is through a shock-and-show simulation. This strategy…

  20. Are There Peer Effects Associated with Having English Language Learner (ELL) Classmates? Evidence from the Early Childhood Longitudinal Study Kindergarten Cohort (ECLS-K)

    ERIC Educational Resources Information Center

    Cho, Rosa Minhyo

    2012-01-01

    Over the past decade, several state and federal policies have directed schools to mainstream English Language Learner (ELL) students into English-only instruction classrooms. While there is mixed evidence on the effects of these immersion policies on the ELL students, research examining potential peer effects on their non-ELL classmates is…

  1. Experiencing the Needs and Challenges of ELLs: Improving Knowledge and Efficacy of Pre-Service Teachers through the Use of a Language Immersion Simulation

    ERIC Educational Resources Information Center

    Wright-Maley, Cory; Green, Jennifer D.

    2015-01-01

    Pre-service teachers need to understand how to support ELLs in their future classrooms, yet evidence suggests that pre-service ELL training may not be as effective as we need it to be. One promising strategy for increasing pre-service teachers' efficacy and knowledge around teaching ELLs is through a shock-and-show simulation. This strategy…

  2. Interventions for reading difficulties: a comparison of response to intervention by ELL and EFL struggling readers.

    PubMed

    Lovett, Maureen W; De Palma, Maria; Frijters, Jan; Steinbach, Karen; Temple, Meredith; Benson, Nancy; Lacerenza, Léa

    2008-01-01

    This article explores whether struggling readers from different primary language backgrounds differ in response to phonologically based remediation. Following random assignment to one of three reading interventions or to a special education reading control program, reading and reading-related outcomes of 166 struggling readers were assessed before, during, and following 105 intervention hours. Struggling readers met criteria for reading disability, were below average in oral language and verbal skills, and varied in English as a first language (EFL) versus English-language learner (ELL) status. The research-based interventions proved superior to the special education control on both reading outcomes and rate of growth. No differences were revealed for children of EFL or ELL status in intervention outcomes or growth during intervention. Oral language abilities at entry were highly predictive of final outcomes and of reading growth during intervention, with greater language impairment being associated with greater growth.

  3. Ell3 stimulates proliferation, drug resistance, and cancer stem cell properties of breast cancer cells via a MEK/ERK-dependent signaling pathway

    SciTech Connect

    Ahn, Hee-Jin; Kim, Gwangil; Park, Kyung-Soon

    2013-08-09

    Highlights: •Ell3 enhances proliferation and drug resistance of breast cancer cell lines. •Ell3 is related to the cancer stem cell characteristics of breast cancer cell lines. •Ell3 enhances oncogenicity of breast cancer through the ERK1/2 signaling pathway. -- Abstract: Ell3 is a RNA polymerase II transcription elongation factor that is enriched in testis. The C-terminal domain of Ell3 shows strong similarities to that of Ell (eleven−nineteen lysine-rich leukemia gene), which acts as a negative regulator of p53 and regulates cell proliferation and survival. Recent studies in our laboratory showed that Ell3 induces the differentiation of mouse embryonic stem cells by protecting differentiating cells from apoptosis via the promotion of p53 degradation. In this study, we evaluated the function of Ell3 in breast cancer cell lines. MCF-7 cell lines overexpressing Ell3 were used to examine cell proliferation and cancer stem cell properties. Ectopic expression of Ell3 in breast cancer cell lines induces proliferation and 5-FU resistance. In addition, Ell3 expression increases the cancer stem cell population, which is characterized by CD44 (+) or ALDH1 (+) cells. Mammosphere-forming potential and migration ability were also increased upon Ell3 expression in breast cancer cell lines. Through biochemical and molecular biological analyses, we showed that Ell3 regulates proliferation, cancer stem cell properties and drug resistance in breast cancer cell lines partly through the MEK−extracellular signal-regulated kinase signaling pathway. Murine xenograft experiments showed that Ell3 expression promotes tumorigenesis in vivo. These results suggest that Ell3 may play a critical role in promoting oncogenesis in breast cancer by regulating cell proliferation and cancer stem cell properties via the ERK1/2 signaling pathway.

  4. Regulation of tumor suppressor EAF2 polyubiquitination by ELL1 and SIAH2 in prostate cancer cells.

    PubMed

    Yu, Xinpei; Ai, Junkui; Cai, Liquan; Jing, Yifeng; Wang, Dan; Dong, Jun; Pascal, Laura E; Zhang, Jian; Luo, Rongcheng; Wang, Zhou

    2016-05-17

    RNA Polymerase II Elongation Factor (ELL)-associated factor 2 (EAF2) is a tumor suppressor frequently down-regulated in human prostate cancer. We previously reported that its binding partner ELL1 can enhance EAF2 protein stability and activity. Here we show that EAF2 can be polyubiquitinated and its degradation blocked by proteasome inhibitor. Co-immunoprecipitation detected EAF2 binding to SIAH2, an E3 ligase, and SIAH2 overexpression enhanced polyubiquitination of EAF2. Co-transfection of EAF2 binding partner ELL1 blocked EAF2 ubiquitination, providing a mechanism for EAF2 stabilization. Finally, EAF2K81R mutant, which exhibits reduced polyubiquitination and increased stability, was more potent than wild-type EAF2 in apoptosis induction. These findings suggest that SIAH2 is an E3 ligase for EAF2 polyubiquitination and ELL1 can enhance EAF2 level and function by blocking its polyubiquitination.

  5. Genetic Predisposition to Multiple Myeloma at 5q15 Is Mediated by an ELL2 Enhancer Polymorphism.

    PubMed

    Li, Ni; Johnson, David C; Weinhold, Niels; Kimber, Scott; Dobbins, Sara E; Mitchell, Jonathan S; Kinnersley, Ben; Sud, Amit; Law, Philip J; Orlando, Giulia; Scales, Matthew; Wardell, Christopher P; Försti, Asta; Hoang, Phuc H; Went, Molly; Holroyd, Amy; Hariri, Fadi; Pastinen, Tomi; Meissner, Tobias; Goldschmidt, Hartmut; Hemminki, Kari; Morgan, Gareth J; Kaiser, Martin; Houlston, Richard S

    2017-09-12

    Multiple myeloma (MM) is a malignancy of plasma cells. Genome-wide association studies have shown that variation at 5q15 influences MM risk. Here, we have sought to decipher the causal variant at 5q15 and the mechanism by which it influences tumorigenesis. We show that rs6877329 G > C resides in a predicted enhancer element that physically interacts with the transcription start site of ELL2. The rs6877329-C risk allele is associated with reduced enhancer activity and lowered ELL2 expression. Since ELL2 is critical to the B cell differentiation process, reduced ELL2 expression is consistent with inherited genetic variation contributing to arrest of plasma cell development, facilitating MM clonal expansion. These data provide evidence for a biological mechanism underlying a hereditary risk of MM at 5q15. Copyright © 2017 The Authors. Published by Elsevier Inc. All rights reserved.

  6. Regulation of tumor suppressor EAF2 polyubiquitination by ELL1 and SIAH2 in prostate cancer cells

    PubMed Central

    Yu, Xinpei; Ai, Junkui; Cai, Liquan; Jing, Yifeng; Wang, Dan; Dong, Jun; Pascal, Laura E.; Zhang, Jian; Luo, Rongcheng; Wang, Zhou

    2016-01-01

    RNA Polymerase II Elongation Factor (ELL)-associated factor 2 (EAF2) is a tumor suppressor frequently down-regulated in human prostate cancer. We previously reported that its binding partner ELL1 can enhance EAF2 protein stability and activity. Here we show that EAF2 can be polyubiquitinated and its degradation blocked by proteasome inhibitor. Co-immunoprecipitation detected EAF2 binding to SIAH2, an E3 ligase, and SIAH2 overexpression enhanced polyubiquitination of EAF2. Co-transfection of EAF2 binding partner ELL1 blocked EAF2 ubiquitination, providing a mechanism for EAF2 stabilization. Finally, EAF2K81R mutant, which exhibits reduced polyubiquitination and increased stability, was more potent than wild-type EAF2 in apoptosis induction. These findings suggest that SIAH2 is an E3 ligase for EAF2 polyubiquitination and ELL1 can enhance EAF2 level and function by blocking its polyubiquitination. PMID:27058417

  7. The transcription elongation factor ELL2 is specifically upregulated in HTLV-1-infected T-cells and is dependent on the viral oncoprotein Tax.

    PubMed

    Mann, Melanie C; Strobel, Sarah; Fleckenstein, Bernhard; Kress, Andrea K

    2014-09-01

    The oncoprotein Tax of human T-cell leukemia virus type 1 (HTLV-1) is a potent transactivator of viral and cellular transcription. Here, we identified ELL2 as the sole transcription elongation factor to be specifically upregulated in HTLV-1-/Tax-transformed T-cells. Tax contributes to regulation of ELL2, since transient transfection of Tax increases ELL2 mRNA, Tax transactivates the ELL2 promoter, and repression of Tax results in decrease of ELL2 in transformed T-lymphocytes. However, we also measured upregulation of ELL2 in HTLV-1-transformed cells exhibiting undetectable amounts of Tax, suggesting that ELL2 can still be maintained independent of continuous Tax expression. We further show that Tax and ELL2 synergistically activate the HTLV-1 promoter, indicating that ELL2 cooperates with Tax in viral transactivation. This is supported by our findings that Tax and ELL2 accumulate in nuclear fractions and that they co-precipitate upon co-expression in transiently-transfected cells. Thus, upregulation of ELL2 could contribute to HTLV-1 gene regulation. Copyright © 2014 Elsevier Inc. All rights reserved.

  8. A comparison of the language skills of ELLs and monolinguals who are poor decoders, poor comprehenders, or normal readers.

    PubMed

    Geva, Esther; Massey-Garrison, Angela

    2013-01-01

    The overall objective of this article is to examine how oral language abilities relate to reading profiles in English language learners (ELLs) and English as a first language (EL1) learners, and the extent of similarities and differences between ELLs and EL1s in three reading subgroups: normal readers, poor decoders, and poor comprehenders. The study included 100 ELLs and 50 EL1s in Grade 5. The effect of language group (ELL/EL1) and reading group on cognitive and linguistic skills was examined. Except for vocabulary, there was no language group effect on any measure. However, within ELL and EL1 alike, significant differences were found between reading groups: Normal readers outperformed the two other groups on all the oral language measures. Distinct cognitive and linguistic profiles were associated with poor decoders and poor comprehenders, regardless of language group. The ELL and EL1 poor decoders outperformed the poor comprehenders on listening comprehension and inferencing. The poor decoders displayed phonological-based weaknesses, whereas the poor comprehenders displayed a more generalized language processing weakness that is nonphonological in nature. Regardless of language status, students with poor decoding or comprehension problems display difficulties with various aspects of language.

  9. Contrast analysis of Shockley partial dislocations in 4H-SiC observed by synchrotron Berg-Barrett X-ray topography

    NASA Astrophysics Data System (ADS)

    Matsuhata, Hirofumi; Yamaguchi, Hirotaka; Yamashita, Tamotsu; Tanaka, Toshiaki; Chen, Bin; Sekiguchi, Takashi

    2014-05-01

    Shockley partial dislocations in 4H-SiC were observed using monochromatic synchrotron X-ray topography with a grazing-incidence Bragg-case geometry, that is, Berg-Barrett topography. The contrast of partial dislocations at the edges of Shockley-type stacking faults is discussed in terms of whether they have C- or Si-core edge components, or screw components. The dissociated state of basal-plane dislocation is discussed on a basis of the stacking sequence for basal-planes in the 4H-SiC crystal structure. It is expected that the results obtained in this study will be useful for characterizing Shockley-type stacking faults in Berg-Barrett topography.

  10. The activities-specific balance confidence scale and berg balance scale: Reliability and validity in Arabic-speaking vestibular patients.

    PubMed

    Alghwiri, Alia A; Alghadir, Ahmad H; Al-Momani, Murad O; Whitney, Susan L

    2016-01-01

    Persons with vestibular disorders are susceptible to imbalance. The Activities-specific Balance Confidence (ABC) scale and Berg Balance Scale (BBS) have been validated in persons with vestibular disorders. The purpose of this study was to examine the reliability and validity of the Arabic versions of ABC and BBS among Arabic-speaking persons with vestibular disorders in Jordan and Saudi Arabia. Therefore, the A-ABC and A-BBS were administered to a convenience sample of 82 persons with vestibular disorders (age = 43 ± 14), (56% female). The test-retest reliability of the A-ABC item and total score as well as the inter-rater and intra-rater reliability of the A-BBS total score reflected high agreement. Significant and large correlations were found between the A-ABC and the A-BBS (r= 0.54, P< 0.05), the A-ABC and the Arabic Dizziness Handicap Inventory (A-DHI) (r= -0.76, P< 0.05), and the A-BBS and the A-DHI (r= -0.56, P< 0.05). The A-ABC and the A-BBS demonstrated good reliability and validity and can be utilized with Arabic-speaking persons with vestibular disorders.

  11. Estimation of genetic diversity in a natural population of cambui tree (Myrciaria tenella O. Berg) using ISSR markers.

    PubMed

    Santana, J G S; Nascimento, A L S; Costa, T S; de Almeida, T M B; Rabbani, A R C; Silva, A V C

    2016-10-05

    Cambui (Myrciaria tenella O. Berg) is a native species from Brazil, which belongs to the family Myrtaceae. Molecular characterization is one of the most used tools for the study of the biotechnological potential of species because the diversity level between individuals can be inferred. Analysis of genetic diversity is fundamental to the direction of the strategies necessary to form and maintain a germplasm. This study aimed to evaluate the genetic diversity in a natural population of cambui using inter-simple sequence repeat (ISSR) molecular markers. The natural population, which provided the plant material, is found at the Private Reserve of Natural Heritage of Caju, which belongs to the experimental field of Embrapa Tabuleiros Costeiros, in the municipality of Itaporanga d'Ajuda, SE, Brazil. Young leaves of each individual were collected for DNA extraction and analysis of PCR-ISSR. Thirty primers were tested and the top 10 were selected. The use of these primers resulted in 71 fragments with 98.3% polymorphism. Similarity of individuals ranged between 0.30 and 0.92. The most similar individuals were C13 and C17 and the most distant were C1 and C41. Through UPGMA, six distinct groups were identified. This information may be used for conservation of these genetic resources, germplasm exchange, creation of germplasm bank and in future studies with this species.

  12. Columbia River Wildlife Mitigation Habitat Evaluation Procedures Report / Scotch Creek Wildlife Area, Berg Brothers, and Douglas County Pygmy Rabbit Projects.

    SciTech Connect

    Ashley, Paul R.

    1997-01-01

    This Habitat Evaluation Procedure study was conducted to determine baseline habitat units (HUs) on the Scotch Creek, Mineral Hill, Pogue Mountain, Chesaw and Tunk Valley Habitat Areas (collectively known as the Scotch Creek Wildlife Area) in Okanogan County, Sagebrush Flat and the Dormaler property in Douglas County, and the Berg Brothers ranch located in Okanogan County within the Colville Reservation. A HEP team comprised of individuals from the Washington Department of Fish and Wildlife, the Confederated Tribes of the Colville Reservation, and the Natural Resources Conservation Service (Appendix A) conducted baseline habitat surveys using the following HEP evaluation species: mule deer (Odocoileus hemionus), sharp-tailed grouse (Tympanuchus phasianellus), pygmy rabbit (Brachylagus idahoensis), white-tailed deer (Odocoileus virginiana), mink (Mustela vison), Canada goose (Branta canadensis), downy woodpecker (Picoides pubescens), Lewis woodpecker (Melanerpes lewis), and Yellow warbler (Dendroica petechia). Results of the HEP analysis are listed below. General ratings (poor, marginal, fair, etc.,) are described in Appendix B. Mule deer habitat was marginal lacking diversity and quantify of suitable browse species. Sharp-tailed grouse habitat was marginal lacking residual nesting cover and suitable winter habitat Pygmy rabbit habitat was in fair condition except for the Dormaier property which was rated marginal due to excessive shrub canopy closure at some sites. This report is an analysis of baseline habitat conditions on mitigation project lands and provides estimated habitat units for mitigation crediting purposes. In addition, information from this document could be used by wildlife habitat managers to develop management strategies for specific project sites.

  13. Chemical and biological characterization of a polysaccharide biological response modifier from Aloe vera L. var. chinensis (Haw.) Berg.

    PubMed

    Leung, M Y K; Liu, C; Zhu, L F; Hui, Y Z; Yu, B; Fung, K P

    2004-06-01

    Three purified polysaccharide fractions designated as PAC-I, PAC-II, and PAC-III were prepared from Aloe vera L. var. chinensis (Haw.) Berg. by membrane fractionation and gel filtration HPLC. The polysaccharide fractions had molecular weights of 10,000 kDa, 1300 kDa, and 470 kDa, respectively. The major sugar residue in the polysaccharide fractions is mannose, which was found to be 91.5% in PAC-I, 87.9% in PAC-II, and 53.7% in PAC-III. The protein contents in the polysaccharide fractions was undetectable. NMR study of PAC-I and PAC-II demonstrated the polysaccharides shared the same structure. The main skeletons of PAC-I and PAC-II are beta-(1-->4)-D linked mannose with acetylation at C-6 of manopyranosyl. The polysaccharide fractions stimulated peritoneal macrophages, splenic T and B cell proliferation, and activated these cells to secrete TNF-alpha, IL-1 beta, INF-gamma, IL-2, and IL-6. The polysaccharides were nontoxic and exhibited potent indirect antitumor response in murine model. PAC-I, which had the highest mannose content and molecular weight, was found to be the most potent biological response modifier of the three fractions. Our results suggested that the potency of aloe polysaccharide fraction increases as mannose content and molecular weight of the polysaccharide fraction increase.

  14. Phylogenomic relationship of feijoa (Acca sellowiana (O.Berg) Burret) with other Myrtaceae based on complete chloroplast genome sequences.

    PubMed

    Machado, Lilian de Oliveira; Vieira, Leila do Nascimento; Stefenon, Valdir Marcos; Oliveira Pedrosa, Fábio de; Souza, Emanuel Maltempi de; Guerra, Miguel Pedro; Nodari, Rubens Onofre

    2017-04-01

    Given their distribution, importance, and richness, Myrtaceae species comprise a model system for studying the evolution of tropical plant diversity. In addition, chloroplast (cp) genome sequencing is an efficient tool for phylogenetic relationship studies. Feijoa [Acca sellowiana (O. Berg) Burret; CN: pineapple-guava] is a Myrtaceae species that occurs naturally in southern Brazil and northern Uruguay. Feijoa is known for its exquisite perfume and flavorful fruits, pharmacological properties, ornamental value and increasing economic relevance. In the present work, we reported the complete cp genome of feijoa. The feijoa cp genome is a circular molecule of 159,370 bp with a quadripartite structure containing two single copy regions, a Large Single Copy region (LSC 88,028 bp) and a Small Single Copy region (SSC 18,598 bp) separated by Inverted Repeat regions (IRs 26,372 bp). The genome structure, gene order, GC content and codon usage are similar to those of typical angiosperm cp genomes. When compared to other cp genome sequences of Myrtaceae, feijoa showed closest relationship with pitanga (Eugenia uniflora L.). Furthermore, a comparison of pitanga synonymous (Ks) and nonsynonymous (Ka) substitution rates revealed extremely low values. Maximum Likelihood and Bayesian Inference analyses produced phylogenomic trees identical in topology. These trees supported monophyly of three Myrtoideae clades.

  15. Pre-asymptotic response rates as a function of the delay-of-reinforcement gradient summation for Catania's Operant Reserve: A reply to Berg & McDowell (2011).

    PubMed

    Li, Don; Elliffe, Douglas; Hautus, Michael J

    2017-03-01

    Catania's Operant Reserve (COR; Catania, 2005) is a computational model of operant behaviour. In COR, responding depletes the reserve while reinforcement replenishes the reserve. The replenishment to the reserve depends on the location of responses within the most recent inter-reinforcement interval. The rule that maps replenishment to the responses within an inter-reinforcement interval is given by a delay-of-reinforcement gradient (DOR). Previous research (Berg and McDowell, 2011) found that non-linear DORs produce sigmoidal response rates on single variable-interval schedules while a linear DOR produces hyperbolic response rates. Berg and McDowell took these sigmoidal response rates as evidence against the viability of COR for modelling variable-interval performance. However, Berg and McDowell did not consider the effect of the slope of each DOR. The present conjecture is that the response rates from COR can be made hyperbolic by manipulating the area under the DOR. Our results show that the manipulation of the area under the DOR allows COR to produce hyperbolic response rates regardless of the parametric form of the DOR. Hence, if COR is to be used to model single variable-interval performance, the reinforcement effect over time should be taken into consideration through the manipulation of the area under the DOR.

  16. Evaluation of the detachment energy of hydrated phosphate anion over a wide range of cluster size and revisiting solvent-berg model: a theoretical study

    NASA Astrophysics Data System (ADS)

    Pathak, Arup Kumar

    2014-12-01

    An explicit analytical expression has been obtained for vertical detachment energy (VDE) that can be used to calculate the same over a wide range (both stable and unstable regions) of cluster sizes including the bulk from the knowledge of VDE for a finite number of stable clusters (n = 16-23). The calculated VDE for the bulk is found to be very good in agreement (within 1%) with the available experimental result and the domain of instability lies between n = 0 and n = 15 for the hydrated clusters, PO3 -4 . nH2O. The minimum number (n0) of water molecules needed to stabilise the phosphate anion is 16. We are able to explain the origin of solvent-berg model and anomalous conductivity from the knowledge of first stable cluster. We have also provided a scheme to calculate the radius of the solvent-berg for phosphate anion. The calculated conductivity using Stokes-Einstein relation and the radius of solvent-berg is found to be very good in agreement (within 4%) with the available experimental results.

  17. The Intersection of Inquiry-Based Science and Language: Preparing Teachers for ELL Classrooms

    NASA Astrophysics Data System (ADS)

    Weinburgh, Molly; Silva, Cecilia; Smith, Kathy Horak; Groulx, Judy; Nettles, Jenesta

    2014-08-01

    As teacher educators, we are tasked with preparing prospective teachers to enter a field that has undergone significant changes in student population and policy since we were K-12 teachers. With the emphasis placed on connections, mathematics integration, and communication by the New Generation Science Standards (NGSS) (Achieve in Next generation science standards, 2012), more research is needed on how teachers can accomplish this integration (Bunch in Rev Res Educ 37:298-341, 2013; Lee et al. in Educ Res 42(4):223-233, 2013). Science teacher educators, in response to the NGSS, recognize that it is necessary for pre-service and in-service teachers to know more about how instructional strategies in language and science can complement one another. Our purpose in this study was to explore a model of integration that can be used in classrooms. To do this, we examined the change in science content knowledge and academic vocabulary for English language learners (ELLs) as they engaged in inquiry-based science experience utilizing the 5R Instructional Model. Two units, erosion and wind turbines, were developed using the 5R Instructional Model and taught during two different years in a summer school program for ELLs. We analyzed data from interviews to assess change in conceptual understanding and science academic vocabulary over the 60 h of instruction. The statistics show a clear trend of growth supporting our claim that ELLs did construct more sophisticated understanding of the topics and use more language to communicate their knowledge. As science teacher educators seek ways to prepare elementary teachers to help preK-12 students to learn science and develop the language of science, the 5R Instructional Model is one pathway.

  18. Variants in ELL2 influencing immunoglobulin levels associate with multiple myeloma

    PubMed Central

    Swaminathan, Bhairavi; Thorleifsson, Guðmar; Jöud, Magnus; Ali, Mina; Johnsson, Ellinor; Ajore, Ram; Sulem, Patrick; Halvarsson, Britt-Marie; Eyjolfsson, Guðmundur; Haraldsdottir, Vilhelmina; Hultman, Christina; Ingelsson, Erik; Kristinsson, Sigurður Y.; Kähler, Anna K.; Lenhoff, Stig; Masson, Gisli; Mellqvist, Ulf-Henrik; Månsson, Robert; Nelander, Sven; Olafsson, Isleifur; Sigurðardottir, Olof; Steingrimsdóttir, Hlif; Vangsted, Annette; Vogel, Ulla; Waage, Anders; Nahi, Hareth; Gudbjartsson, Daniel F.; Rafnar, Thorunn; Turesson, Ingemar; Gullberg, Urban; Stefánsson, Kári; Hansson, Markus; Thorsteinsdóttir, Unnur; Nilsson, Björn

    2015-01-01

    Multiple myeloma (MM) is characterized by an uninhibited, clonal growth of plasma cells. While first-degree relatives of patients with MM show an increased risk of MM, the genetic basis of inherited MM susceptibility is incompletely understood. Here we report a genome-wide association study in the Nordic region identifying a novel MM risk locus at ELL2 (rs56219066T; odds ratio (OR)=1.25; P=9.6 × 10−10). This gene encodes a stoichiometrically limiting component of the super-elongation complex that drives secretory-specific immunoglobulin mRNA production and transcriptional regulation in plasma cells. We find that the MM risk allele harbours a Thr298Ala missense variant in an ELL2 domain required for transcription elongation. Consistent with a hypomorphic effect, we find that the MM risk allele also associates with reduced levels of immunoglobulin A (IgA) and G (IgG) in healthy subjects (P=8.6 × 10−9 and P=6.4 × 10−3, respectively) and, potentially, with an increased risk of bacterial meningitis (OR=1.30; P=0.0024). PMID:26007630

  19. Differentiating Literacy Growth of ELL Students with LD from Other High-Risk Subgroups and General Education Peers: Evidence from Grades 3-10

    ERIC Educational Resources Information Center

    Solari, Emily J.; Petscher, Yaacov; Folsom, Jessica Sidler

    2014-01-01

    The authors used a large data set (N = 1,011,549) to examine literacy growth over a single school year comparing general education (GenEd) students to three high-risk subgroups: English language learners (ELL), those with a specific learning disability (LD), and those identified as both LD and ELL (LD-ELL) in students in Grades 3-10. The authors…

  20. Male meiosis, heterochromatin characterization and chromosomal location of rDNA in Microtomus lunifer (Berg, 1900) (Hemiptera: Reduviidae: Hammacerinae)

    PubMed Central

    Poggio, María Georgina; Bressa, María José; Papeschi, Alba Graciela

    2011-01-01

    Abstract In the present work, we analysed the male meiosis, the content and distribution of heterochromatin and the number and location of nucleolus organizing regions in Microtomus lunifer (Berg, 1900) by means of standard technique, C- and fluorescent bandings, and fluorescent in situ hybridization with an 18S rDNA probe. This species is the second one cytogenetically analysed within the Hammacerinae. Its male diploid chromosome number is 31 (2n=28+X1X2Y), including a minute pair of m-chromosomes. The diploid autosomal number and the presence of m-chromosomes are similar to those reported in Microtomus conspicillaris (Drury, 1782) (2n=28+XY). However, Microtomus lunifer has a multiple sex chromosome system X1X2Y (male) that could have originated by fragmentation of the ancestral X chromosome. Taking into account that Microtomus conspicillaris and Microtomus lunifer are the only two species within Reduviidae that possess m-chromosomes, the presence of this pair could be a synapomorphy for the species of this genus. C- and fluorescent bandings showed that the amount of heterochromatin in Microtomus lunifer was small, and only a small CMA3 bright band was observed in the largest autosomal pair at one terminal region. FISH with the 18S rDNA probe demonstrated that ribosomal genes were terminally placed on the largest autosomal pair. Our present results led us to propose that the location of rDNA genes could be associated with variants of the sex chromosome systems in relation with a kind of the sex chromosome systems within this family. Furthermore, the terminal location of NOR in the largest autosomal pair allowed us to use it as a chromosome marker and, thus, to infer that the kinetic activity of both ends is not a random process, and there is an inversion of this activity. PMID:24260616

  1. Relationships among the Y balance test, Berg Balance Scale, and lower limb strength in middle-aged and older females

    PubMed Central

    Lee, Dong-Kyu; Kang, Min-Hyeok; Lee, Tae-Sik; Oh, Jae-Seop

    2015-01-01

    Background: Older females have less dynamic postural control and muscle strength than do middle-aged females. Aging-related strength losses may limit balancing performance. Objective: The purpose of this study was to investigate the ability of the Y Balance Test (YBT) and lower limb strength to discriminate between females in 2 age groups, the relationship between YBT distance and the Berg Balance Scale (BBS), and the degree to which performance on YBT distance is related to lower limb strength in middle-aged and older females. Method: The 40 healthy, independently active females were divided into 2 groups: older and middle-aged. The participants underwent measurements of YBT distance using the YBT, maximal muscular strength of the lower limbs using a handheld dynamometer, and the BBS. Results: The YBT distance in 3 directions and lower limb muscle strength for both lower limbs were significantly lower in the older adults than in the middle-aged group. A moderate correlation but insignificant correlation was found between the YBT composite distance and the BBS score. In the older females, YBT distance was significantly positively correlated with strength of the knee flexor and hip abductor. In the middle-aged group, YBT distance was significantly positively correlated with strength of the knee flexor and hip extensor. Conclusions: Performance on the YBT was influenced by the strength of lower limb. We suggested that YBT can be used to alternative as a measurement of dynamic balance. Proper training programs for older people could include not only strengthening exercises but also YBT performance to improve balance. PMID:26039033

  2. Reliability of the Berg Balance Scale as a Clinical Measure of Balance in Community-Dwelling Older Adults with Mild to Moderate Alzheimer Disease: A Pilot Study.

    PubMed

    Muir-Hunter, Susan W; Graham, Laura; Montero Odasso, Manuel

    2015-08-01

    Objectif : Mesurer la fiabilité test-retest et interévaluateurs de l'échelle de Berg chez les adultes âgés qui résident dans la collectivité et qui sont atteints de la maladie d'Alzheimer au stade léger à modéré. Méthode : Un échantillon de 15 adultes (âge moyen de 80,20 [ET de 5,03] ans) atteints d'Alzheimer ont effectué trois tests d'équilibre : l'échelle de Berg (Berg Balance Scale), le test de lever et marcher chronométré (timed up-and-go [TUG]) et le test de portée fonctionnelle (Functional Reach Test). La fiabilité relative, à l'aide du coefficient de corrélation intraclasse (CCI) et la fiabilité absolue, à l'aide de l'erreur type de mesure (ETM) et des valeurs de changement détectable minimal (CDM95), ont été calculées; des courbes de Bland et Altman ont été construites pour évaluer la convergence interévaluateurs. L'intervalle de test-retest était d'une semaine. Résultats : En ce qui concerne l'échelle de Berg, les valeurs de fiabilité relative étaient de 0,95 (95% CI, 0,85 à 0,98) pour la fiabilité test-retest et de 0,72 (95% CI, 0,31 à 0,91) pour la fiabilité interévaluateurs; l'ETM était de 6,01 points et le CDM95 était de 16,66 points, tandis que la convergence interévaluateur était de 16,62 points. L'échelle de Berg a obtenu de meilleurs résultats que les tests de lever et marcher chronométré et de portée fonctionnelle, tests ayant une fiabilité établie pour l'Alzheimer en fiabilité test-retest. De 33% à 50% des participants avaient besoin de plus de directives que les instructions normalisées, car ils n'étaient pas capables de se souvenir des instructions de test. Conclusions : L'échelle de Berg a obtenu des valeurs de fiabilité relative qui appuient son utilité clinique, mais les valeurs de CDM95 et de convergence indiquent que cette échelle présente des limites en matière de rendement pour les cas d'Alzheimer. D'autres recherches visant l'optimisation de l'évaluation de l

  3. Inquiry experiences and the development of science vocabulary and concepts with English language learners (ELLs)

    NASA Astrophysics Data System (ADS)

    Oliver, Tammy Deneene

    The primary objective of this project was to analyze the change in use of academic science vocabulary and conceptual understanding of erosion by the ELLs participating in the Math, Science and Language (MSL) camp conducted in 2008. The researcher examined archival data in the form of student journals collected during the MSL camp of 2008. Current assessments are not developed to assess both vocabulary development and conceptual understanding. The researcher developed a new assessment tool named JASTO that allowed assessment of both vocabulary and conceptual understanding parallel to one another. JASTO was used to analyze the science journals of the MSL camp of 2008. Data indicate an increase in conceptual understanding of the erosion topic. Some students expressed their understanding using everyday vocabulary and others using academic vocabulary. The type of vocabulary usage was dependent on the English language proficiency of the student.

  4. Cancer, viruses, and mass migration: Paul Berg's venture into eukaryotic biology and the advent of recombinant DNA research and technology, 1967-1980.

    PubMed

    Yi, Doogab

    2008-01-01

    The existing literature on the development of recombinant DNA technology and genetic engineering tends to focus on Stanley Cohen and Herbert Boyer's recombinant DNA cloning technology and its commercialization starting in the mid-1970s. Historians of science, however, have pointedly noted that experimental procedures for making recombinant DNA molecules were initially developed by Stanford biochemist Paul Berg and his colleagues, Peter Lobban and A. Dale Kaiser in the early 1970s. This paper, recognizing the uneasy disjuncture between scientific authorship and legal invention in the history of recombinant DNA technology, investigates the development of recombinant DNA technology in its full scientific context. I do so by focusing on Stanford biochemist Berg's research on the genetic regulation of higher organisms. As I hope to demonstrate, Berg's new venture reflected a mass migration of biomedical researchers as they shifted from studying prokaryotic organisms like bacteria to studying eukaryotic organisms like mammalian and human cells. It was out of this boundary crossing from prokaryotic to eukaryotic systems through virus model systems that recombinant DNA technology and other significant new research techniques and agendas emerged. Indeed, in their attempt to reconstitute 'life' as a research technology, Stanford biochemists' recombinant DNA research recast genes as a sequence that could be rewritten thorough biochemical operations. The last part of this paper shifts focus from recombinant DNA technology's academic origins to its transformation into a genetic engineering technology by examining the wide range of experimental hybridizations which occurred as techniques and knowledge circulated between Stanford biochemists and the Bay Area's experimentalists. Situating their interchange in a dense research network based at Stanford's biochemistry department, this paper helps to revise the canonized history of genetic engineering's origins that emerged during

  5. Descriptions of the immature stages and new host plant records of Notozulia entreriana (Berg) (Hemiptera: Cercopidae) pests of grasses in subtropical areas of the Americas.

    PubMed

    Foieri, Alvaro; Lenicov, Ana M Marino De Remes; Virla, Eduardo G

    2016-04-11

    Notozulia entreriana (Berg) (Hemiptera: Cercopidae) is one of the most common spittlebugs inhabiting the subtropical region of the America, inflicting important economic damage to grass crops. The immature stages are described and illustrated; the main characteristics that distinguish instars are the body size, color, number of flagellomeres, and number of tibial and metatarsomere spines. A key for identification of nymphs is provided as a tool to develop field studies.  Nine host plants, all belonging to Poaceae, are recorded as breeding and feeding host plants from different localities in northern Argentina.

  6. Description of the immature stages and new host plant records of Deois (Deois) mourei (Berg) (Hemiptera: Cercopidae), a species newly recorded from Argentina and Paraguay.

    PubMed

    Foieri, Alvaro; Lenicov, Ana M Marino De Remes; Virla, Eduardo G

    2016-09-06

    Deois (Deois) mourei Cavichioli & Sakakibara (Hemiptera: Cercopidae) is recorded for the first time from Argentina and Paraguay. The eggs and immature stages of the species are described and illustrated; the main characters that distinguish instars are body size, color, number of flagellomeres, and number of tibial and metatarsomere spines. A key for identification of nymphs of D. (D.) mourei and a key to differentiate nymphs of the sympatric species D. (D.) mourei and Notozulia entreriana Berg are provided. In addition, a list of host plants of D. (D.) mourei in Argentina is given.

  7. [Comparison of the performance-oriented mobility assessment and the Berg balance scale. Assessment tools in geriatrics and geriatric rehabilitation].

    PubMed

    Schülein, S

    2014-02-01

    In order to develop and coordinate an integrated plan for treatment of hospitalized elderly patients in danger of future falls it is of utmost importance to ensure using the assessment that best targets people who are at risk for falling. For this purpose the performance-oriented mobility assessment (POMA) and the Berg balance scale (BBS) can be used. The purpose of this study was to collate the results of articles published on these assessment tools in order to appraise whether one of them could be favored under the viewpoint of practicability and expressiveness. A literature search was conducted for studies examining the two assessment tools published since 1986 through December 2011 in English and German language. Reference sections were also inspected for additional citations. Overall 19 studies were retrieved in order to answer the posed question. Of the total number of 1,455 patients in the identified articles, 712 with an average age of 74.1 years were included in the BBS trials and the POMA was assessed using 743 patients with an average age of 75.7 years. The BBS was good at identifying elderly people who are at risk for falling (sensitivity 84-95.5 %) and those who are not at-risk for falling (specificity 76.5-95.5 %. The demonstrated results for the POMA ranged from relatively poor to good (sensitivity 64-95.5 %) and from poor to very high (specificity 60-100 %). The BBS demonstrated its strengths in the more precise survey for monitoring balance and predicting risk for falling. Weaknesses of the BBS were the higher average time of processing and the inability to detect changes in gait. The advantages of the POMA was the short processing time, the possibility for separate identification of balance and gait and the high accuracy in recognition of gait changes. The results suggest that the POMA can be used as a fast screening tool to evaluate risk for falling or changes in gait ability. Geriatric patients who screen positive for risks of falls

  8. Nearly 50 Years Post-Jim Crow: Persisting and Expansive School Segregation for African American, Latina/o, and ELL Students in Texas

    ERIC Educational Resources Information Center

    Vasquez Heilig, Julian; Holme, Jennifer Jellison

    2013-01-01

    This study addresses the segregation of English language learner (ELL) students in schools across Texas. We descriptively analyze levels of racial, economic, and linguistic isolation experienced by ELL students across the state of Texas. We also examine the association between segregation by race/ethnicity, economic disadvantage, and language…

  9. An Investigation of the Impact of Parent and Community Involvement in Middle Schools in North Carolina That Successfully Serve Latino English Language Learners (ELLs)

    ERIC Educational Resources Information Center

    Fuga, Michael T.

    2016-01-01

    English Language Learners (ELLs) are students that speak a primary language other than English. The number of ELLs continues to grow in the United States with the current majority having Spanish as their base language (Ortiz & Pagan, 2009). Since the implementation of No Child Left Behind (NCLB) in 2001, schools are held accountable for…

  10. Consequences and Validity of Performance Assessment for English Language Learners: Integrating Academic Language and ELL Instructional Needs into Opportunity to Learn Measures. CSE 678

    ERIC Educational Resources Information Center

    Aguirre-Munoz, Zenaida; Boscardin, Christy Kim; Jones, Barbara; Park, Jae-Eun; Chinen, Marjorie; Shin, Hye Sook; Lee, Janet; Amabisca, Anastasia Aimee; Benner, Aprile

    2006-01-01

    To further the understanding of ELL (under) achievement and broaden the current scope of OTL models, the primary focus of this study was to investigate process and content opportunities that are particularly relevant to improving ELL achievement with particular attention to the relationship between opportunities to acquire academic language and…

  11. Nearly 50 Years Post-Jim Crow: Persisting and Expansive School Segregation for African American, Latina/o, and ELL Students in Texas

    ERIC Educational Resources Information Center

    Vasquez Heilig, Julian; Holme, Jennifer Jellison

    2013-01-01

    This study addresses the segregation of English language learner (ELL) students in schools across Texas. We descriptively analyze levels of racial, economic, and linguistic isolation experienced by ELL students across the state of Texas. We also examine the association between segregation by race/ethnicity, economic disadvantage, and language…

  12. An Investigation of the Impact of Parent and Community Involvement in Middle Schools in North Carolina That Successfully Serve Latino English Language Learners (ELLs)

    ERIC Educational Resources Information Center

    Fuga, Michael T.

    2016-01-01

    English Language Learners (ELLs) are students that speak a primary language other than English. The number of ELLs continues to grow in the United States with the current majority having Spanish as their base language (Ortiz & Pagan, 2009). Since the implementation of No Child Left Behind (NCLB) in 2001, schools are held accountable for…

  13. When Good Intentions and Reality Meet: Large-Scale Reform of Science Teaching in Urban Schools with Predominantly Latino ELL Students

    ERIC Educational Resources Information Center

    Johnson, Carla C.; Bolshakova, Virginia L. J.; Waldron, Tammy

    2016-01-01

    This study examined the ability of Transformative Professional Development (TPD) to transform science teacher quality and associated impact on science achievement, including particular focus on English Language Learners (ELL). TPD was implemented in a large, low-performing, urban district in the southwest with predominantly Latino ELL populations.…

  14. When Good Intentions and Reality Meet: Large-Scale Reform of Science Teaching in Urban Schools with Predominantly Latino ELL Students

    ERIC Educational Resources Information Center

    Johnson, Carla C.; Bolshakova, Virginia L. J.; Waldron, Tammy

    2016-01-01

    This study examined the ability of Transformative Professional Development (TPD) to transform science teacher quality and associated impact on science achievement, including particular focus on English Language Learners (ELL). TPD was implemented in a large, low-performing, urban district in the southwest with predominantly Latino ELL populations.…

  15. Investigating Head Start Teachers' Beliefs about Language and Literacy Practices for English Language Learners (ELLs)

    ERIC Educational Resources Information Center

    Orner Young, Wendy L.

    2012-01-01

    A changing classroom population and lack of English as a Second Language or bilingual instruction at the preschool level has required Head Start teachers to teach English language and literacy skills to English Language Learners (ELLs). The purpose of this dissertation was to develop and validate a new scale to measure preschool teachers'…

  16. "The Kids Are Terrific: It's the Job that's Tough": The ELL Teacher Role in an Urban Context

    ERIC Educational Resources Information Center

    Trickett, Edison J.; Rukhotskiy, Emma; Jeong, Ansuk; Genkova, Ana; Oberoi, Ashmeet; Weinstein, Traci; Delgado, Yanelet

    2012-01-01

    The present study depicts an ecological portrait of the work lives of 16 ELL high school teachers in an urban context in the United States. Results suggest that their work lives take place within a complex school ecology which affects the kinds of activities they engage in and the opportunities they have to support their students. In this context…

  17. College Persistence and Engagement in Light of a Mature English Language Learner (ELL) Student's Voice

    ERIC Educational Resources Information Center

    Almon, Cate

    2015-01-01

    An interview study at a community college in the mid-Atlantic region of the United States reveals factors in the persistence of English language learners (ELLs) starting from their courses in English as a second language (ESL) through to their graduation or transfer to 4-year institutions. The results form a narrative of a day in the life of a…

  18. Effects of Teacher-Led Reading Teaching Activities and Student Independent Reading on Fourth Grade ELL Student Reading Comprehension

    ERIC Educational Resources Information Center

    Liu, Siping

    2012-01-01

    This dissertation study examines the effects of four teacher-led reading activities recommended by the reading teaching policy and student independent reading activity on the development of English language learners (ELL) reading proficiency at fourth grade in U.S. elementary schools. In this study, I first introduce the significance of studying…

  19. Investigating Head Start Teachers' Beliefs about Language and Literacy Practices for English Language Learners (ELLs)

    ERIC Educational Resources Information Center

    Orner Young, Wendy L.

    2012-01-01

    A changing classroom population and lack of English as a Second Language or bilingual instruction at the preschool level has required Head Start teachers to teach English language and literacy skills to English Language Learners (ELLs). The purpose of this dissertation was to develop and validate a new scale to measure preschool teachers'…

  20. English-Spanish Cognates in the Charlotte Zolotow Award Picture Books: Vocabulary, Morphology, and Orthography Lessons for Latino ELLs

    ERIC Educational Resources Information Center

    Montelongo, Jose A.; Hernandez, Anita C.; Herter, Roberta J.

    2016-01-01

    English-Spanish cognates are words that are orthographically and semantically identical or nearly identical in English and Spanish as a result of a common etymology. Because of the similarities in the two languages, Spanish-dominant Latino English Language Learners (ELLs) can be taught to recognize English cognates thereby increasing their…

  1. Comparing Vocabulary Development in Spanish- and Chinese-Speaking ELLs: The Effects of Metalinguistic and Sociocultural Factors

    ERIC Educational Resources Information Center

    Chen, Xi; Ramirez, Gloria; Luo, Yang C.; Geva, Esther; Ku, Yu-Min

    2012-01-01

    This study evaluated the impact of two metalinguistic factors, English derivational awareness and English-Spanish cognate awareness, and the impact of two sociocultural factors, maternal education and children's length of residence in Canada, on English Language Learners (ELLs)' vocabulary knowledge. The participants of the study were 89…

  2. English-Spanish Cognates in the Charlotte Zolotow Award Picture Books: Vocabulary, Morphology, and Orthography Lessons for Latino ELLs

    ERIC Educational Resources Information Center

    Montelongo, Jose A.; Hernandez, Anita C.; Herter, Roberta J.

    2016-01-01

    English-Spanish cognates are words that are orthographically and semantically identical or nearly identical in English and Spanish as a result of a common etymology. Because of the similarities in the two languages, Spanish-dominant Latino English Language Learners (ELLs) can be taught to recognize English cognates thereby increasing their…

  3. Learning to Write in the Digital Age: ELLs' Literacy Practices in and out of Their Western Urban High School

    ERIC Educational Resources Information Center

    Pu, Jiang

    2013-01-01

    The definition of literacy is constantly changing and expanding. A sociocultural view of Literacy considers literacy to be multiple, multimodal, and multilingual as situated in and across the social and cultural contexts. As technology, new media and social network has reformed many aspects of writing, they provide ELLs (English language learners)…

  4. Promoting Social-Emotional Learning in Adolescent Latino ELLs: A Study of the Culturally Adapted "Strong Teens" Program

    ERIC Educational Resources Information Center

    Castro-Olivo, Sara M.

    2014-01-01

    The current study evaluated the effects of the culturally adapted "Jóvenes Fuertes" ("Strong Teens") Social-Emotional Learning (SEL) program on the social-emotional outcomes of Latino English language learners (ELLs). A quasi-experimental design with random assignment by classrooms was used to assess the intervention's…

  5. Transmigration Experiences of Newcomers in the Context of an English-Only Education: Sense-Making by Former Newcomer ELLs

    ERIC Educational Resources Information Center

    Tonogbanua, Elizabeth Paulsen

    2016-01-01

    This qualitative interpretive study explored how former newcomer English Language Learners (ELLs) in Boston Public Schools (BPS) made sense of their transmigration experiences through a digital storytelling project. The study fills a gap on transmigration experiences in the context of English-only learning environments, with a particular…

  6. College Persistence and Engagement in Light of a Mature English Language Learner (ELL) Student's Voice

    ERIC Educational Resources Information Center

    Almon, Cate

    2015-01-01

    An interview study at a community college in the mid-Atlantic region of the United States reveals factors in the persistence of English language learners (ELLs) starting from their courses in English as a second language (ESL) through to their graduation or transfer to 4-year institutions. The results form a narrative of a day in the life of a…

  7. "The Kids Are Terrific: It's the Job that's Tough": The ELL Teacher Role in an Urban Context

    ERIC Educational Resources Information Center

    Trickett, Edison J.; Rukhotskiy, Emma; Jeong, Ansuk; Genkova, Ana; Oberoi, Ashmeet; Weinstein, Traci; Delgado, Yanelet

    2012-01-01

    The present study depicts an ecological portrait of the work lives of 16 ELL high school teachers in an urban context in the United States. Results suggest that their work lives take place within a complex school ecology which affects the kinds of activities they engage in and the opportunities they have to support their students. In this context…

  8. The Impact of Science Notebook Writing on ELL and Low-SES Students' Science Language Development and Conceptual Understanding

    ERIC Educational Resources Information Center

    Huerta, Margarita

    2013-01-01

    This quantitative study explored the impact of literacy integration in a science inquiry classroom involving the use of science notebooks on the academic language development and conceptual understanding of students from diverse (i.e., English Language Learners, or ELLs) and low socio-economic status (low-SES) backgrounds. The study derived from a…

  9. Delphi Study of Instructional Strategies for English Language Learners with Disabilities: Recommendations from Educators Nationwide. ELLs with Disabilities Report 21

    ERIC Educational Resources Information Center

    Thurlow, Martha; Shyyan, Vitaliy; Barrera, Manuel; Liu, Kristi

    2008-01-01

    This study is part of national research over the past seven years at the National Center on Educational Outcomes focused on identifying and validating instructional strategies for ELLs with disabilities (Shyyan, Thurlow, & Liu, 2008; Thurlow, Albus, Shyyan, Liu, & Barrera, 2004). In recent work (Barrera, Shyyan, Liu, & Thurlow, 2008),…

  10. Validating the English Language Learner Motivation Scale (ELLMS): Pre-College to Measure Language Learning Motivational Orientations among Young ELLs

    ERIC Educational Resources Information Center

    Ardasheva, Yuliya; Tong, Sze Sze; Tretter, Thomas R.

    2012-01-01

    This study modified and validated a measure of motivational orientations--grounded in self-determination theory and originally developed for postsecondary students--for use with younger (pre-college) English language learners (ELLs). Exploratory factor analysis results in Sample A (n = 528) indicated that the data were best explained by a…

  11. The Impact of Science Notebook Writing on ELL and Low-SES Students' Science Language Development and Conceptual Understanding

    ERIC Educational Resources Information Center

    Huerta, Margarita

    2013-01-01

    This quantitative study explored the impact of literacy integration in a science inquiry classroom involving the use of science notebooks on the academic language development and conceptual understanding of students from diverse (i.e., English Language Learners, or ELLs) and low socio-economic status (low-SES) backgrounds. The study derived from a…

  12. Enhancing Academic Investment through Home-School Connections and Building on ELL Students' Scholastic Funds of Knowledge

    ERIC Educational Resources Information Center

    Johnson, Eric J.; Johnson, Angela B.

    2016-01-01

    This discussion examines an academic intervention designed to enhance the motivation and classroom engagement of English Language Learners (ELLs) during literacy-based activities. Stemming from a sociocultural perspective of literacy (Au, 1993; Perez, 2004) within a funds of knowledge framework (González, Moll, & Amanti , 2005), our approach…

  13. Success with ELLs: Spanish in the Mainstream--Finding Middle Ground for Latino/Latina Immigrant Newcomers

    ERIC Educational Resources Information Center

    Siefert, Bobbi

    2010-01-01

    While the overall school-age population grew by only 2.6 percent between 1995 and 2005, the number of English Language Learners (ELLs) grew by 56 percent--a number that can only be expected to grow considerably in the near future. Mainstream literacy professionals across the country, typically monolingual European American women, struggle to…

  14. Comparing Vocabulary Development in Spanish- and Chinese-Speaking ELLs: The Effects of Metalinguistic and Sociocultural Factors

    ERIC Educational Resources Information Center

    Chen, Xi; Ramirez, Gloria; Luo, Yang C.; Geva, Esther; Ku, Yu-Min

    2012-01-01

    This study evaluated the impact of two metalinguistic factors, English derivational awareness and English-Spanish cognate awareness, and the impact of two sociocultural factors, maternal education and children's length of residence in Canada, on English Language Learners (ELLs)' vocabulary knowledge. The participants of the study were 89…

  15. Transmigration Experiences of Newcomers in the Context of an English-Only Education: Sense-Making by Former Newcomer ELLs

    ERIC Educational Resources Information Center

    Tonogbanua, Elizabeth Paulsen

    2016-01-01

    This qualitative interpretive study explored how former newcomer English Language Learners (ELLs) in Boston Public Schools (BPS) made sense of their transmigration experiences through a digital storytelling project. The study fills a gap on transmigration experiences in the context of English-only learning environments, with a particular…

  16. Learning Strategies in Alleviating English Writing Anxiety for English Language Learners (ELLs) with Limited English Proficiency (LEP)

    ERIC Educational Resources Information Center

    Wu, Chia-Pei; Lin, Huey-Ju

    2016-01-01

    This study utilized the Oxford Strategy Inventory for Language Learning (SILL) and an English writing anxiety scale to examine the relationship between learning strategies and English writing anxiety in 102 university-level English language learners (ELLs) with Limited English Proficiency (LEP) in a university in Taiwan. Kruskal Wallis Test…

  17. Learning to Write in the Digital Age: ELLs' Literacy Practices in and out of Their Western Urban High School

    ERIC Educational Resources Information Center

    Pu, Jiang

    2013-01-01

    The definition of literacy is constantly changing and expanding. A sociocultural view of Literacy considers literacy to be multiple, multimodal, and multilingual as situated in and across the social and cultural contexts. As technology, new media and social network has reformed many aspects of writing, they provide ELLs (English language learners)…

  18. Analysis of English language learner performance on the biology Massachusetts comprehensive assessment system: The impact of english proficiency, first language characteristics, and late-entry ELL status

    NASA Astrophysics Data System (ADS)

    Mitchell, Mary A.

    This study analyzed English language learner (ELL) performance on the June 2012 Biology MCAS, namely on item attributes of domain, cognitive skill, and linguistic complexity. It examined the impact of English proficiency, Latinate first language, first language orthography, and late-entry ELL status. The results indicated that English proficiency was a strong predictor of performance and that ELLs at higher levels of English proficiency overwhelmingly passed. The results further indicated that English proficiency introduced a construct-irrelevant variance on the Biology MCAS and raised validity issues for using this assessment at lower levels of English proficiency. This study also found that ELLs with a Latinate first language consistently had statistically significant lower performance. Late-entry ELL status did not predict Biology MCAS performance.

  19. Effects of ELL-associated factor 2 on ultraviolet radiation-induced cataract formation in mice

    PubMed Central

    JIANG, YANHUA; FU, RONGRONG; ZHAO, JIANGYUE; WU, DI; QIAO, GUANG; LI, RUOXI; ZHANG, JINSONG

    2015-01-01

    ELL-associated factor 2 (Eaf2) has an important role in crystalline lens development and maturation; however, its role in ultraviolet radiation (UV)-induced cataract formation has remained elusive. The present study compared UV-induced cell apoptosis, activation of caspase-3 and caspase-9 and changes in protein expression levels of B-cell lymphoma 2 (bcl-2), bcl-2-associated X protein (bax) and phosphorylated extracellular signal-regulated kinase in wild-type and Eaf2-knockout mice. The results showed that Eaf2 knockout can reduce UV-induced apoptosis in crystalline lenses and mitigate the formation of cataracts. Further functional studies indicated that Eaf2 can induce the activation of caspase-3 and caspase-9, increase the protein expression of the pro-apoptotic protein bax and inhibit the expression of the anti-apoptotic protein bcl-2; thereby, Eaf2 promotes cell apoptosis and is implicated in the formation and development of cataracts. The present study laid a theoretical foundation for the development of drugs for cataract treatment. PMID:26328919

  20. Effects of ELL-associated factor 2 on ultraviolet radiation-induced cataract formation in mice.

    PubMed

    Jiang, Yanhua; Fu, Rongrong; Zhao, Jiangyue; Wu, Di; Qiao, Guang; Li, Ruoxi; Zhang, Jinsong

    2015-11-01

    ELL-associated factor 2 (Eaf2) has an important role in crystalline lens development and maturation; however, its role in ultraviolet radiation (UV)-induced cataract formation has remained elusive. The present study compared UV-induced cell apoptosis, activation of caspase-3 and caspase-9 and changes in protein expression levels of B-cell lymphoma 2 (bcl-2), bcl-2-associated X protein (bax) and phosphorylated extracellular signal-regulated kinase in wild-type and Eaf2-knockout mice. The results showed that Eaf2 knockout can reduce UV-induced apoptosis in crystalline lenses and mitigate the formation of cataracts. Further functional studies indicated that Eaf2 can induce the activation of caspase-3 and caspase-9, increase the protein expression of the pro-apoptotic protein bax and inhibit the expression of the anti-apoptotic protein bcl-2; thereby, Eaf2 promotes cell apoptosis and is implicated in the formation and development of cataracts. The present study laid a theoretical foundation for the development of drugs for cataract treatment.

  1. Promoting social-emotional learning in adolescent Latino ELLs: a study of the culturally adapted Strong Teens program.

    PubMed

    Castro-Olivo, Sara M

    2014-12-01

    The current study evaluated the effects of the culturally adapted Jóvenes Fuertes (Strong Teens) Social-Emotional Learning (SEL) program on the social-emotional outcomes of Latino English language learners (ELLs). A quasi-experimental design with random assignment by classrooms was used to assess the intervention's effects on students' knowledge of SEL and resiliency. A sample of 102 Spanish-dominant Latino ELLs enrolled in middle or high school participated in this study. The results indicated significant intervention effects on SEL knowledge and social-emotional resiliency. The findings are discussed in terms of their implications for preventive, culturally responsive SEL programs in school settings. PsycINFO Database Record (c) 2014 APA, all rights reserved.

  2. Predicting falls within the elderly community: comparison of postural sway, reaction time, the Berg balance scale and the Activities-specific Balance Confidence (ABC) scale for comparing fallers and non-fallers.

    PubMed

    Lajoie, Y; Gallagher, S P

    2004-01-01

    Simple reaction time, the Berg balance scale, the Activities-specific Balance Confidence (ABC) scale and postural sway were studied in order to determine cut-off scores as well as develop a model used in the prevention of fallers within the elderly community. One hundred and twenty-five subjects, 45 fallers and 80 non-fallers were evaluated throughout the study and results indicated that non-fallers have significantly faster reaction times, have higher scores on the Berg balance scale and the ABC scale as well as sway at slower frequencies when compared to fallers. Furthermore, all risk factors were subsequently entered into a logistic regression analysis and results showed that reaction time, the total Berg score and the total ABC score contributed significantly to the prediction of falls with 89% sensitivity and 96% specificity. A second logistic regression was carried out with the same previous variables as well as all questions of the Berg and ABC scales. Results from the logistic analysis revealed that three variables were associated with fall status with 91% sensitivity and 97% specificity. Results from the following study would seem rather valuable as an assessment tool for health care professionals in the identification and monitoring of potential fallers within nursing homes and throughout the community.

  3. Chemical and biological evaluation of essential oils from two species of Myrtaceae - Eugenia uniflora L. and Plinia trunciflora (O. Berg) Kausel.

    PubMed

    Lago, João Henrique G; Souza, Elisângela Dutra; Mariane, Bruna; Pascon, Renata; Vallim, Marcelo A; Martins, Roberto Carlos C; Baroli, Adriana A; Carvalho, Bianca A; Soares, Marisi G; dos Santos, Roberta T; Sartorelli, Patricia

    2011-11-25

    The chemical composition and antimicrobial activity of essential oils obtained from leaves of two Myrtaceae species-Eugenia uniflora L. and Plinia trunciflora (O. Berg) Kausel-were determined. Analysis by GC/MS as well as determination of Kovatz indexes indicated atractylone (26.78%) and curzerene (17.96%) as major constituents of E. uniflora oil and α-cadinol (19.15%), apiole (11.15%) and cubenol (5.43%) as main components in P. trunciflora oil. Both essential oils were tested for antimicrobial activity against yeasts and bacteria. E. uniflora and P. trunciflora essential oils were active towards two Gram-positive bacteria, Streptococcus equi and Staphylococcus epidermis. In addition, biological activity of both essential oils was detected for pathogenic yeasts of the genus Candida and Cryptococcus. E. uniflora was active towards all yeast tested and exhibited interesting minimal inhibitory concentrations (0.11 to 3.75 mg/mL) across a broad spectrum of activity.

  4. Morphological and molecular identification of Gyrodactylus bubyri Osmanov, 1965 (Monogenea: Gyrodactylidae) from Caucasian dwarf goby, Knipowitschia caucasica (Berg) (Actinopterygii: Gobionellidae) from a Black Sea lagoon.

    PubMed

    Stoyanov, Borislav; Huyse, Tine; Pankov, Plamen; Georgiev, Boyko B

    2016-04-01

    Gyrodactylus bubyri Osmanov, 1965, a monogenean parasite of Caucasian dwarf goby Knipowitschia caucasica (Berg) described from Aral Sea and subsequently reported from the same host from Strymon River, Greece, is recorded from Atanasovsko Lake, Bulgarian Black Sea coast (the first record of G. bubyri from the Black Sea basin). The species is redescribed by light and scanning electron microscopy as well as the ITS rDNA sequence is obtained. As comparative materials, specimens of G. bubyri from K. caucasica (Strymon River), G. charon Vanhove and Huyse in Vanhove et al., 2014 from Knipowitschia milleri (Acheron Delta, Greece) and G. micropsi Gläser, 1974 from Potamoschistus microps from North Sea (Belgium) are studied. Comparative morphology and molecular data demonstrate that G. micropsi is a junior synonym of G. bubyri (new synonymy). The validity of G. charon is questioned, pending examination of additional materials in order to prove it as a distinct species or as a junior synonym of G. bubyri.

  5. L’inhalation de corticostéroïdes est-elle sécuritaire durant la grossesse?

    PubMed Central

    Smy, Laura; Chan, Alvin C.H.; Bozzo, Pina; Koren, Gideon

    2014-01-01

    Résumé Question Une femme atteinte d’asthme léger à modéré, autrement en santé, s’est présentée à ma clinique aujourd’hui après avoir appris qu’elle était enceinte. Elle m’a demandé si elle devait continuer à prendre ses corticostéroïdes en inhalation (CSI) et, dans l’affirmative, s’il pourrait y avoir des risques pour son enfant à naître. Quels seraient vos conseils à ce propos? Réponse Compte tenu des données probantes publiées, les CSI devraient être continués durant toute la grossesse à des doses allant de faibles à modérées et suffisantes pour contrôler les symptômes de l’asthme et prévenir les exacerbations. Il faut toutefois être prudent quand il s’agit de doses de plus de 1 000 µg/j (d’équivalent de béclométasone avec chlorofluorocarbures), quoiqu’il soit actuellement questionnable si de telles doses causeraient des effets indésirables. Il faut renseigner de manière continue les patientes sur l’administration appropriée des CSI et l’observance du traitement, y compris durant le premier trimestre. Un bon contrôle de l’asthme réduira la nécessité de doses plus fortes de CSI et de l’exposition possible à des corticostéroïdes systémiques et diminuera ainsi le risque de résultats périnatals ou de grossesse indésirables.

  6. Ell3 stabilizes p53 following CDDP treatment via its effects on ubiquitin-dependent and -independent proteasomal degradation pathways in breast cancer cells.

    PubMed

    Ahn, Hee-Jin; Kim, Kwang-Soo; Shin, Kyung-Won; Lim, Kee-Hwan; Kim, Jin-Ock; Lee, Je-Yong; Kim, Jiewan; Park, Ji-Hoon; Yang, Kyung-Min; Baek, Kwang-Hyun; Ko, Jeong-Jae; Park, Kyung-Soon

    2015-12-29

    The tumor suppressor protein p53 is unstable in quiescent cells and undergoes proteosomal degradation. Under conditions of cellular stress, p53 is rapidly stabilized by post-translational modification, thereby escaping degradation and translocating to the nucleus where it activates genes related to cell cycle arrest or apoptosis. Here, we report that the transcription elongation factor Ell3 sensitizes luminal type-cancer cell line, MCF7, which have wild-type p53, to the chemotherapeutic agent cis-diamminedichloroplatinum(II) (CDDP) by stabilizing p53. Overexpression of Ell3 in MCF7 cells suppressed the MDM2-mediated ubiquitin-dependent degradation pathway. In addition, Ell3 promoted binding of p53 to NADH quinone oxidoreductase 1, which is linked to the ubiquitin-independent degradation of p53. We found that Ell3 activates interleukin-20 (IL20) expression, which is linked to the ERK1/2 signaling pathway. Chemical inhibition of ERK1/2 signaling or molecular suppression of IL20 revealed that the ERK1/2 signaling pathway and IL20 are the main causes of p53 stabilization in Ell3-overexpressing MCF7 cells. These findings suggest that the ERK1/2 pathway can be targeted in the rational development of therapies to induce chemosensitization of breast cancer cells.

  7. Training-free compressed sensing for wireless neural recording using analysis model and group weighted {{\\ell}_{1}} -minimization

    NASA Astrophysics Data System (ADS)

    Sun, Biao; Zhao, Wenfeng; Zhu, Xinshan

    2017-06-01

    Objective. Data compression is crucial for resource-constrained wireless neural recording applications with limited data bandwidth, and compressed sensing (CS) theory has successfully demonstrated its potential in neural recording applications. In this paper, an analytical, training-free CS recovery method, termed group weighted analysis {{\\ell}1} -minimization (GWALM), is proposed for wireless neural recording. Approach. The GWALM method consists of three parts: (1) the analysis model is adopted to enforce sparsity of the neural signals, therefore overcoming the drawbacks of conventional synthesis models and enhancing the recovery performance. (2) A multi-fractional-order difference matrix is constructed as the analysis operator, thus avoiding the dictionary learning procedure and reducing the need for previously acquired data and computational complexities. (3) By exploiting the statistical properties of the analysis coefficients, a group weighting approach is developed to enhance the performance of analysis {{\\ell}1} -minimization. Main results. Experimental results on synthetic and real datasets reveal that the proposed approach outperforms state-of-the-art CS-based methods in terms of both spike recovery quality and classification accuracy. Significance. Energy and area efficiency of the GWALM make it an ideal candidate for resource-constrained, large scale wireless neural recording applications. The training-free feature of the GWALM further improves its robustness to spike shape variation, thus making it more practical for long term wireless neural recording.

  8. The functional assessment Berg Balance Scale is better capable of estimating fall risk in the elderly than the posturographic Balance Stability System.

    PubMed

    Pereira, Vanessa Vieira; Maia, Roberto Alcantara; Silva, Sonia Maria Cesar de Azevedo

    2013-01-01

    The purpose of this study was to verify which instrument better identifies recurrent falls in the elderly. Ninety-eight old people, with an average age of 80 ± 4 years, were submitted to an assessment of balance and fall risk by means of the Berg Balance Scale (BBS) and the posturographic Balance Stability System (BSS). The BBS was correlated with the BSS (r=-0.27; p=0.008), age (r=-0.38; p<0.001) and number of falls (r=-0.25; p=0.013) and the analysis of logistical regression showed that the elderly classified with fall risk on the BBS presented 2.5 (95%CI 1.08-5.78) more chance of identifying who had two falls or more over the last year. The BBS identified that the greater the age the worse the functional balance and demonstrated a greater capacity to identify falls risk suffered over the last year when compared with the BSS.

  9. A Retrospective Analysis of Post-Stroke Berg Balance Scale Scores: How Should Normal and At-Risk Scores Be Interpreted?

    PubMed

    Patterson, Kara K; Inness, Elizabeth; McIlroy, William E; Mansfield, Avril

    2017-01-01

    Purpose: The Berg Balance Scale (BBS) is a performance-based measure of standing balance commonly used by clinicians working with individuals post-stroke. Performance on the BBS can be influenced by compensatory strategies, but measures derived from two force plates can isolate compensatory strategies and thus better indicate balance impairment. This study examined BBS scores that reflect "normal" and disordered balance with respect to dual force-plate measures of standing balance in individuals post-stroke. Methods: BBS and force-plate measures were extracted from 75 patient charts. Individuals were classified by BBS score with respect to (1) age-matched normative values and (2) values that suggested increased risk of falls. Multiple analysis of variance was used to examine the effect of group assignment on force-plate measures of standing balance. Results: Individuals with BBS scores within and below normative values did not differ in force-plate measures. Individuals with BBS scores below the falls risk cutoff loaded their affected leg less than individuals with BBS scores above the cutoff. There were no other differences in force-plate measures between these two groups. Conclusions: BBS scores indicating either normal or disordered balance function are not necessarily associated with normal or disordered quiet standing-balance control measured by two force plates. This finding suggests that the BBS may reflect a capacity for compensation rather than any underlying impairments.

  10. Chemical Characterization and in Vitro Antibacterial Activity of Myrcianthes hallii (O. Berg) McVaugh (Myrtaceae), a Traditional Plant Growing in Ecuador.

    PubMed

    Chavez Carvajal, Patricia; Coppo, Erika; Di Lorenzo, Arianna; Gozzini, Davide; Bracco, Francesco; Zanoni, Giuseppe; Nabavi, Seyed Mohammad; Marchese, Anna; Arciola, Carla Renata; Daglia, Maria

    2016-06-07

    Myrcianthes hallii (O. Berg) McVaugh (Myrtaceae) is a plant native to Ecuador, traditionally used for its antiseptic properties. The composition of the hydro-methanolic extract of this plant was determined by submitting it to ultra-high performance liquid chromatography (UHPLC) hyphenated to heated-electrospray ionization mass spectrometry and UV detection. The presence of antimicrobial components prompted us to test the extract against methicillin-resistant and methicillin-susceptible Staphylococcus aureus, multidrug-resistant and susceptible Escherichia coli, Pseudomonas aeruginosa, Enterococcus spp. and Streptococcus pyogenes strains. The chromatographic analysis led to the identification of 38 compounds, including polyphenols and organic acids, and represents the first chemical characterization of this plant. The extract showed modest antibacterial activity against all tested bacteria, with the exception of E. coli which was found to be less sensitive. Whilst methicillin-resistant strains usually display resistance to several drugs, no relevant differences were observed between methicillin-susceptible and resistant strains. Considering its long-standing use in folk medicine, which suggests the relative safety of the plant, and the presence of many known antibacterial polyphenolic compounds responsible for its antibacterial activity, the results show that M. hallii extract could be used as a potential new antiseptic agent. Moreover, new anti-infective biomaterials and nanomaterials could be designed through the incorporation of M. hallii polyphenols. This prospective biomedical application is also discussed.

  11. Chemical Characterization and in Vitro Antibacterial Activity of Myrcianthes hallii (O. Berg) McVaugh (Myrtaceae), a Traditional Plant Growing in Ecuador

    PubMed Central

    Chavez Carvajal, Patricia; Coppo, Erika; Di Lorenzo, Arianna; Gozzini, Davide; Bracco, Francesco; Zanoni, Giuseppe; Nabavi, Seyed Mohammad; Marchese, Anna; Arciola, Carla Renata; Daglia, Maria

    2016-01-01

    Myrcianthes hallii (O. Berg) McVaugh (Myrtaceae) is a plant native to Ecuador, traditionally used for its antiseptic properties. The composition of the hydro-methanolic extract of this plant was determined by submitting it to ultra-high performance liquid chromatography (UHPLC) hyphenated to heated-electrospray ionization mass spectrometry and UV detection. The presence of antimicrobial components prompted us to test the extract against methicillin-resistant and methicillin-susceptible Staphylococcus aureus, multidrug-resistant and susceptible Escherichia coli, Pseudomonas aeruginosa, Enterococcus spp. and Streptococcus pyogenes strains. The chromatographic analysis led to the identification of 38 compounds, including polyphenols and organic acids, and represents the first chemical characterization of this plant. The extract showed modest antibacterial activity against all tested bacteria, with the exception of E. coli which was found to be less sensitive. Whilst methicillin-resistant strains usually display resistance to several drugs, no relevant differences were observed between methicillin-susceptible and resistant strains. Considering its long-standing use in folk medicine, which suggests the relative safety of the plant, and the presence of many known antibacterial polyphenolic compounds responsible for its antibacterial activity, the results show that M. hallii extract could be used as a potential new antiseptic agent. Moreover, new anti-infective biomaterials and nanomaterials could be designed through the incorporation of M. hallii polyphenols. This prospective biomedical application is also discussed. PMID:28773577

  12. Heterogeneous nuclear ribonucleoprotein L-like (hnRNPLL) and elongation factor, RNA polymerase II, 2 (ELL2) are regulators of mRNA processing in plasma cells

    PubMed Central

    Benson, Micah J.; Äijö, Tarmo; Chang, Xing; Gagnon, John; Pape, Utz J.; Anantharaman, Vivek; Aravind, L.; Pursiheimo, Juha-Pekka; Oberdoerffer, Shalini; Liu, X. Shirley; Lahesmaa, Riitta; Lähdesmäki, Harri; Rao, Anjana

    2012-01-01

    B cells and plasma cells possess distinct RNA processing environments that respectively promote the expression of membrane-associated Ig by B cells versus the secretion of Ig by plasma cells. Through a combination of transcriptional profiling and screening using a lentiviral short-hairpin RNA interference library, we show that both the splicing factor hnRNPLL and the transcription elongation factor ELL2 modulate the ratio of secreted versus membrane-encoding Ighg2b transcripts in MPC11 plasmacytoma cell lines. hnRNPLL and ELL2 are both highly expressed in primary plasma cells relative to B cells, but hnRNPLL binds Ighg2b mRNA transcripts and promotes an increase in levels of the membrane-encoding Ighg2b isoform at the expense of the secreted Ighg2b isoform, whereas ELL2 counteracts this effect and drives Ig secretion by increasing the frequency of the secreted Ighg2b isoform. As in T cells, hnRNPLL also alters the splicing pattern of mRNA encoding the adhesion receptor CD44, promoting exon inclusion, and decreasing the overall level of CD44 expression. Further characterization of ELL2-dependent transcription by RNA-Seq revealed that ∼12% of transcripts expressed by plasma cells were differentially processed because of the activities of ELL2, including B-cell maturation antigen BCMA, a receptor with a defined role in plasma cell survival. Taken together, our data identify hnRNPLL and ELL2 as regulators of pre-mRNA processing in plasma cells. PMID:22991471

  13. A Search for B{sup +} --> {tau}{sup +}{nu}{sub {tau}} Recoiling Against B{sup -} --> D*{sup 0}{ell}{sup -}{bar {nu}}{sub {ell}}

    SciTech Connect

    Aubert, B.

    2004-08-18

    The authors present a search for the decay B{sup +} --> {tau}{sup +}{nu}{sub {tau}} in 124.1 x 10{sup 6} {Upsilon}(4S) decays recorded with the BABAR detector at the SLAC PEP-II B-Factory. A sample of events with one reconstructed exclusive semi-leptonic B decay (B{sup -} --> D*{sup 0}{ell}{sup -}{bar {nu}}{sub {ell}}) is selected, and in the recoil a search for B{sup +} --> {tau}{sup +}{nu}{sub {tau}} signal is performed. The {tau} is identified in the following channels: {tau}{sup +} --> e{sup +}{nu}{sub e}{bar {nu}}{sub {tau}} --> {mu}{sup +}{nu}{sub {mu}}{bar {nu}}{sub {tau}}, {tau}{sup +} --> {pi}{sup +}{bar {nu}}{sub {tau}}, {tau}{sup +} --> {pi}{sup +}{pi}{sup 0}{bar {nu}}{sub {tau}}, {tau}{sup +} --> {pi}{sup +}{pi}{sup -}{pi}{sup +}{bar {nu}}{sub {tau}}. The authors find no evidence of signal, and they set a preliminary upper limit on the branching fraction of B(B{sup +} --> {tau}{sup +}{nu}{sub {tau}}) < 4.3 x 10{sup -4} at the 90% confidence level (CL). This result is then combined with a statistically independent BABAR search for B{sup +} --> {tau}{sup +}{nu}{sub {tau}} to give a combined preliminary limit of B(B{sup +} --> {tau}{sup +}{nu}{sub {tau}}) < 3.3 x 10{sup -4} at 90% CL.

  14. Between-rater reliability of the 6-minute walk test, berg balance scale, and handheld dynamometry in people with multiple sclerosis.

    PubMed

    Toomey, Elaine; Coote, Susan

    2013-01-01

    This study investigated the between-rater reliability of the Berg Balance Scale (BBS), 6-Minute Walk test (6MW), and handheld dynamometry (HHD) in people with multiple sclerosis (MS). Previous studies that examined BBS and 6MW reliability in people with MS have not used more than two raters, or analyzed different mobility levels separately. The reliability of HHD has not been previously reported for people with MS. In this study, five physical therapists assessed eight people with MS using the BBS, 6MW, and HHD, resulting in 12 pairs of data. Data were analyzed using intraclass correlation coefficients (ICCs), Spearman correlation coefficients (SCCs), and Bland and Altman methods. The results suggest excellent agreement for the BBS (SCC = 0.95, mean difference between raters [d̄] = 2.08, standard error of measurement [SEM] = 1.77) and 6MW (ICC = 0.98, d̄ = 5.22 m, SEM = 24.76 m) when all mobility levels are analyzed together. Reliability is lower in less mobile people with MS (BBS SCC = 0.6, d̄ = -1.83; 6MW ICC = 0.95, d̄ = 20.04 m). Although the ICC and SCC results for HHD suggest good-to-excellent reliability (0.65-0.85), d̄ ranges up to 17.83 N, with SEM values as high as 40.95 N. While the small sample size is a limitation of this study, the preliminary evidence suggests strong agreement between raters for the BBS and 6MW and decreased agreement between raters for people with greater mobility problems. The mean differences between raters for HHD are probably too high for it to be applied in clinical practice.

  15. An Evaluation of Two English Language Learner (ELL) Instructional Models at School District ABC: Pull-In and Push-Out

    ERIC Educational Resources Information Center

    Lloyd, Sonya LaShawn

    2014-01-01

    Providing academic assistance to English Language Learners (ELLs) is varied and often ineffective. The purpose of this causal-comparative study was to determine if there was a relationship between 9th grade students' performance on the High School Graduation Exam (HSGE) in reading and language and the Push-in and Pull-out models of instruction.…

  16. The Influence of Tier One of RtI[superscript 2] and Instructional Coaching on Teacher Instruction and Student/ELL Learning: A Multiple Case Study

    ERIC Educational Resources Information Center

    Valadez, Frances E.

    2012-01-01

    The purpose of this case study was to demonstrate the influence of Tier 1 of Response to Intervention and Instruction (RtI[superscript 2]) and instructional coaching on teachers' instruction and on students' and English Language Learners' (ELL) learning. Research was conducted in one large urban elementary school. The unit of study…

  17. Second Language Reading of Adolescent ELLs: A Study of Response to Retrospective Miscue Analysis, Error Coding Methodology and Transfer of L1 Decoding Skills in L2 Reading

    ERIC Educational Resources Information Center

    Latham Keh, Melissa Anne

    2014-01-01

    It is well documented that ELLs face significant challenges as they develop literacy skills in their second language (NCES, 2007, 2011). This population is diverse and growing rapidly in Massachusetts and across the nation (Massachusetts Department of Elementary and Secondary Education, 2013; NCELA, 2011; Orosco, De Schonewise, De Onis, Klingner,…

  18. Bilingual and English as a Second Language (ESL) Services for Limited English Proficient (LEP)/English Language Learners (ELLs) Who Are Students with Disabilities

    ERIC Educational Resources Information Center

    Cort, Rebecca H.; Stevens, Jean C.

    2011-01-01

    The purpose of this memorandum is to clarify State policy regarding English as a Second Language (ESL) services for LEP/ELL students who are also identified as having disabilities. Part 154 of the Regulations of the Commissioner of Education establishes the State's requirements for services for students with limited English proficiency. The…

  19. Middle School Principals' Perspectives on Academic Standards-Based Instruction and Programming for English Language Learners with Disabilities. ELLs with Disabilities Report 22

    ERIC Educational Resources Information Center

    Liu, Kristi; Thurlow, Martha; Koo, Haesook; Barrera, Manuel

    2008-01-01

    Previous work by the National Center on Educational Outcomes (K. Liu, Koo, Barrera, & Thurlow, 2008) documented that principals in 10 "successful" middle schools (defined as those making Adequate Yearly Progress (AYP) with ELLs and students with disabilities) were knowledgeable and concerned about the special education referral…

  20. A Comparative Analysis of Pre- and In-Service Teacher Beliefs about Readiness and Self-Competency: Revisiting Teacher Education for ELLs

    ERIC Educational Resources Information Center

    Polat, Nihat

    2010-01-01

    This study addresses differences between pre- and in-service teacher beliefs about readiness and self-competency in helping English language learners' (ELL) language and academic achievement in content area classes. It also examines the role of gender and certain background factors in mediating differences in beliefs while providing suggestions to…

  1. Frameworks Shaping an Online Professional Development Program for K-12 Teachers of ELLs: Toward Supporting the Sharing of Ideas for Empowering Classroom Teachers Online

    ERIC Educational Resources Information Center

    Smith, Sedef Uzuner

    2014-01-01

    In efforts to maintain America's global competitiveness in the knowledge-based economy, teacher professional development has moved to center stage. With increasing numbers of English language learners (ELLs) in U.S. schools, several states have adopted mandatory professional development for classroom teachers to equip them with the knowledge…

  2. Use of Chunking and Questioning Aloud to Improve the Reading Comprehension of English Language Learners with Disabilities. ELLs with Disabilities Report 17

    ERIC Educational Resources Information Center

    Barrera, Manuel; Liu, Kristi; Thurlow, Martha; Chamberlain, Steve

    2006-01-01

    English language learners (ELLs) with disabilities struggle with reading and the reasons for their struggles are not well understood owing to little knowledge about the impact of disability on language development in either the first or second language (Klingner et al., 2006). Nevertheless, this difficulty in reading achievement historically has…

  3. Frameworks Shaping an Online Professional Development Program for K-12 Teachers of ELLs: Toward Supporting the Sharing of Ideas for Empowering Classroom Teachers Online

    ERIC Educational Resources Information Center

    Smith, Sedef Uzuner

    2014-01-01

    In efforts to maintain America's global competitiveness in the knowledge-based economy, teacher professional development has moved to center stage. With increasing numbers of English language learners (ELLs) in U.S. schools, several states have adopted mandatory professional development for classroom teachers to equip them with the knowledge…

  4. Differentiating literacy growth of ELL students with LD from other high-risk subgroups and general education peers: evidence from grades 3-10.

    PubMed

    Solari, Emily J; Petscher, Yaacov; Folsom, Jessica Sidler

    2014-01-01

    The authors used a large data set (N = 1,011,549) to examine literacy growth over a single school year comparing general education (GenEd) students to three high-risk subgroups: English language learners (ELL), those with a specific learning disability (LD), and those identified as both LD and ELL (LD-ELL) in students in Grades 3-10. The authors were particularly interested in whether variability existed between initial status and the growth trajectories of the three high-risk groups on measures of spelling, fluency, and reading comprehension across the school year and whether this variability was differentiated because of socioeconomic status (SES) as defined by free and reduced lunch (FRL) status. Results indicate that all high-risk groups began the year at substantially lower levels than their GenEd peers, with the largest differences seen between the LD-ELL students and the other subgroups. Further results suggest that students who are in the high-risk subgroups and also qualify for FRL perform significantly worse than their peers in similar risk status groups who do not qualify for FRL, demonstrating the significant impact of SES on academic outcomes for all groups. © Hammill Institute on Disabilities 2012.

  5. Developmental Changes in the Nature of Language Proficiency and Reading Fluency Paint a More Complex View of Reading Comprehension in ELL and EL1

    ERIC Educational Resources Information Center

    Geva, Esther; Farnia, Fataneh

    2012-01-01

    We examined theoretical issues concerning the development of reading fluency and language proficiency in 390 English Language Learners (ELLs,) and 149 monolingual, English-as-a-first language (EL1) students. The extent to which performance on these constructs in Grade 5 (i.e., concurrent predictors) contributes to reading comprehension in the…

  6. Second Language Reading of Adolescent ELLs: A Study of Response to Retrospective Miscue Analysis, Error Coding Methodology and Transfer of L1 Decoding Skills in L2 Reading

    ERIC Educational Resources Information Center

    Latham Keh, Melissa Anne

    2014-01-01

    It is well documented that ELLs face significant challenges as they develop literacy skills in their second language (NCES, 2007, 2011). This population is diverse and growing rapidly in Massachusetts and across the nation (Massachusetts Department of Elementary and Secondary Education, 2013; NCELA, 2011; Orosco, De Schonewise, De Onis, Klingner,…

  7. Helping ELLs Meet the Common Core State Standards for Literacy in Science: The Impact of an Instructional Intervention Focused on Academic Language

    ERIC Educational Resources Information Center

    August, Diane; Branum-Martin, Lee; Cárdenas-Hagan, Elsa; Francis, David J.; Powell, Jennifer; Moore, Sarah; Haynes, Erin F.

    2014-01-01

    The goal of this study was to assess the effectiveness of an intervention--Quality English and Science Teaching 2--designed to help English language learners (ELLs) and their English proficient classmates develop academic language in science, as required by the Common Core State Standards. The intervention consisted of supplementary instructional…

  8. An Evaluation of Two English Language Learner (ELL) Instructional Models at School District ABC: Pull-In and Push-Out

    ERIC Educational Resources Information Center

    Lloyd, Sonya LaShawn

    2014-01-01

    Providing academic assistance to English Language Learners (ELLs) is varied and often ineffective. The purpose of this causal-comparative study was to determine if there was a relationship between 9th grade students' performance on the High School Graduation Exam (HSGE) in reading and language and the Push-in and Pull-out models of instruction.…

  9. A Comparative Analysis of Pre- and In-Service Teacher Beliefs about Readiness and Self-Competency: Revisiting Teacher Education for ELLs

    ERIC Educational Resources Information Center

    Polat, Nihat

    2010-01-01

    This study addresses differences between pre- and in-service teacher beliefs about readiness and self-competency in helping English language learners' (ELL) language and academic achievement in content area classes. It also examines the role of gender and certain background factors in mediating differences in beliefs while providing suggestions to…

  10. Including English Language Learners with Disabilities in Large-Scale Assessments: A Case Study of Linguistically-Diverse Populations. ELLs with Disabilities Report 14

    ERIC Educational Resources Information Center

    Minnema, Jane E.; Thurlow, Martha L.; VanGetson, Gretchen R.; Jimenez, Rene

    2006-01-01

    The National Center on Educational Outcomes (NCEO) has for the past four years conducted research on large-scale assessment and instructional issues for English language learners (ELLs) with disabilities, but neither NCEO's research nor any other research study has yet described large-scale assessment experiences at the local school level for…

  11. Transcription factors TFIIF, ELL, and Elongin negatively regulate SII-induced nascent transcript cleavage by non-arrested RNA polymerase II elongation intermediates.

    PubMed

    Elmendorf, B J; Shilatifard, A; Yan, Q; Conaway, J W; Conaway, R C

    2001-06-22

    TFIIF, ELL, and Elongin belong to a class of RNA polymerase II transcription factors that function similarly to activate the rate of elongation by suppressing transient pausing by polymerase at many sites along DNA templates. SII is a functionally distinct RNA polymerase II elongation factor that promotes elongation by reactivating arrested polymerase. Studies of the mechanism of SII action have shown (i) that arrest of RNA polymerase II results from irreversible displacement of the 3'-end of the nascent transcript from the polymerase catalytic site and (ii) that SII reactivates arrested polymerase by inducing endonucleolytic cleavage of the nascent transcript by the polymerase catalytic site thereby creating a new transcript 3'-end that is properly aligned with the catalytic site and can be extended. SII also induces nascent transcript cleavage by paused but non-arrested RNA polymerase II elongation intermediates, leading to the proposal that pausing may result from reversible displacement of the 3'-end of nascent transcripts from the polymerase catalytic site. On the basis of evidence consistent with the model that TFIIF, ELL, and Elongin suppress pausing by preventing displacement of the 3'-end of the nascent transcript from the polymerase catalytic site, we investigated the possibility of cross-talk between SII and transcription factors TFIIF, ELL, and Elongin. These studies led to the discovery that TFIIF, ELL, and Elongin are all capable of inhibiting SII-induced nascent transcript cleavage by non-arrested RNA polymerase II elongation intermediates. Here we present these findings, which bring to light a novel activity associated with TFIIF, ELL, and Elongin and suggest that these transcription factors may expedite elongation not only by increasing the forward rate of nucleotide addition by RNA polymerase II, but also by inhibiting SII-induced nascent transcript cleavage by non-arrested RNA polymerase II elongation intermediates.

  12. Approximate arbitrary κ-state solutions of Dirac equation with Schiöberg and Manning-Rosen potentials within the coulomb-like Yukawa-like and generalized tensor interactions

    NASA Astrophysics Data System (ADS)

    Ikot, Akpan N.; Hassanabadi, Hassan; Obong, Hillary Patrick; Mehraban, H.; Yazarloo, Bentol Hoda

    2015-07-01

    The effects of Coulomb-like tensor (CLT), Yukawa-like tensor (YLT) and generalized tensor (GLT) interactions are investigated in the Dirac theory with Schiöberg and Manning-Rosen potentials within the framework of spin and pseudospin symmetries using the Nikiforov-Uvarov method. The bound state energy spectra and the radial wave functions have been approximately obtained in the case of spin and pseudospin symmetries. We have also reported some numerical results and figures to show the effects these tensor interactions.

  13. The Human Factor in System Reliability Is Human Performance Predictable? (les Facteurs humains et la fiabilite des systemes - Les performances humaines, sont-elles previsibles?)

    DTIC Science & Technology

    2007-11-02

    CEDEX, FRANCE RTO MEETING PROCEEDINGS 32 The Human Factor in System Reliability – Is Human Performance Predictable? (les Facteurs humains et la...fiabilité des systèmes – Les performances humaines, sont-elles prévisibles?) Papers presented at the Human Factors and Medicine Panel (HFM) Workshop...Reliability Is Human Performance Predictable? Contract or Grant Number Program Element Number Authors Project Number Task Number Work Unit Number

  14. Group Balance Training Specifically Designed for Individuals With Alzheimer Disease: Impact on Berg Balance Scale, Timed Up and Go, Gait Speed, and Mini-Mental Status Examination.

    PubMed

    Ries, Julie D; Hutson, Janet; Maralit, Leslie A; Brown, Megan B

    2015-01-01

    Individuals with Alzheimer disease (IwAD) experience more frequent and more injurious falls than their cognitively intact peers. Evidence of balance and gait dysfunction is observed earlier in the course of Alzheimer disease (AD) than once believed. Balance training has been demonstrated to be effective in improving balance and decreasing falls in cognitively intact older adults but is not well studied in IwAD. This study was designed to analyze the effects of a group balance training program on balance and falls in IwAD. The program was developed specifically for IwAD, with explicit guidelines for communication/interaction and deliberate structure of training sessions catered to the motor learning needs of IwAD. This prospective, quasi-experimental, pretest-posttest design study describes the effects of a balance training program for a cohort of IwAD. Thirty IwAD were recruited from 3 adult day health centers; 22 completed at least 1 posttest session. Participants were tested with Berg Balance Scale (BBS), Timed Up and Go (TUG), Self-Selected Gait Speed (SSGS), Fast Gait Speed (FGS), and Mini-Mental Status Examination (MMSE) immediately before and after the 3-month intervention and again 3 months later. Group training was held at the adult day health centers for 45 minutes, twice per week. Sessions were characterized by massed, constant, and blocked practice of functional, relevant activities with considerable repetition. Ratio of participant to staff member never exceeded 3:1. Physical therapist staff members assured that participants were up on their feet the majority of each session and were individually challenged as much as possible. Repeated-measures analysis of variance (ANOVA) for BBS was significant (F = 15.04; df = 1.67/28.40; P = .000) with post hoc tests, revealing improvement between pretest and immediate posttest (P = .000) and decline in performance between immediate and 3-month posttest (P = .012). Repeated-measures ANOVA posttest for MMSE was

  15. The end-Cretaceous in the southwestern Tethys (Elles, Tunisia): orbital calibration of paleoenvironmental events before the mass extinction

    NASA Astrophysics Data System (ADS)

    Thibault, Nicolas; Galbrun, Bruno; Gardin, Silvia; Minoletti, Fabrice; Le Callonnec, Laurence

    2016-04-01

    An integrated study of magnetic mass susceptibility (MS), bulk stable isotopes and calcareous nannofossil paleoecological changes is undertaken on the late Maastrichtian of the Elles section, Tunisia, spanning the last ca. 1 Myr of the Cretaceous. A cyclostratigraphic analysis reveals the presence of Milankovitch frequencies and is used for proposal of two distinct orbital age models and to provide ages of important stratigraphic horizons, relative to the age of the Cretaceous-Paleogene boundary (K-PgB). Principal component analysis (PCA) performed on the nannofossil assemblage reveal two main factors, PCA1, mostly representing fluctuations of D. rotatorius, P. stoveri, Lithraphidites spp., Retecapsa spp., Staurolithites spp., Micula spp., and PCA2, mostly representing fluctuations of A. regularis, C. ehrenbergii, Micula spp., Rhagodiscus spp., W. barnesiae and Zeugrhabdotus spp. Variations in PCA1 and PCA2 match changes in bulk δ13C and δ18O, respectively, and suggest changes in surface-water fertility and temperatures and associated stress. The variations in abundances of high-latitude taxa and the warm-water species Micula murus and in bulk δ18O delineate fast changes in sea-surface paleotemperatures. As in many other sites, an end-Maastrichtian greenhouse warming is highlighted, followed by a short cooling and an additional warm pulse in the last 30 kyr of the Maastrichtian which has rarely been documented so far. Orbital tuning of the delineated climatic events is proposed following the two different age models. Calcareous nannofossil assemblages highlight a decrease in surface-water nutriency, but their species richness remains high through the latest Maastrichtian, indicating, in Tunisia, a weak impact of Deccan volcanism on calcareous nannoplankton diversity before the mass extinction.

  16. ELLs: What's the Endgame?

    ERIC Educational Resources Information Center

    Rance-Roney, Judith

    2011-01-01

    For many English language learners, the endgame isn't passing state exams--it's attending and graduating from college. Yet schools often focus on a lower target: proficiency. To support the transition of English language learners to postsecondary success, schools should create formal transition plans, provide differentiated guidance, focus on…

  17. $$B \\to \\pi \\ell \

    DOE PAGES

    Flynn, J. M.; Izubuchi, T.; Kawanai, T.; ...

    2015-04-14

    We calculate the form factors for B → πℓν and Bs → Kℓν decay in dynamical lattice quantum chromodynamics (QCD) using domain-wall light quarks and relativistic b-quarks. We use the (2+1)-flavor gauge-field ensembles generated by the RBC and UKQCD collaborations with the domain-wall fermion action and Iwasaki gauge action. For the b-quarks we use the anisotropic clover action with a relativistic heavy-quark interpretation. We analyze data at two lattice spacings of a ≈ 0.11, 0.086 fm with unitary pion masses as light as Mπ ≈ 290 MeV. We simultaneously extrapolate our numerical results to the physical light-quark masses and tomore » the continuum and interpolate in the pion/kaon energy using SU(2) “hard-pion” chiral perturbation theory for heavy-light meson form factors. We provide complete systematic error budgets for the vector and scalar form factors f + (q2) and f0(q2) for both B → πℓν and Bs → Kℓν at three momenta that span the q2 range accessible in our numerical simulations. Next we extrapolate these results to q2 = 0 using a model-independent z-parametrization based on analyticity and unitarity. We present our final results for f+(q2) and f0(q2)as the coefficients of the series in z and the matrix of correlations between them; this provides a parametrization of the form factors valid over the entire allowed kinematic range. Our results agree with other three-flavor lattice-QCD determinations using staggered light quarks, and have comparable precision, thereby providing important independent cross-checks. Both B → πℓν and Bs → Kℓν decays enable determinations of the Cabibbo-Kobayashi-Maskawa matrix element |Vub|. Furthermore, we perform a combined z-fit of our numerical B → πℓν form-factor data with the experimental measurements of the branching fraction from BABAR and Belle leaving the relative normalization as a free parameter; we obtain |Vub| = 3.61(32)×10-3, where the error includes statistical and all systematic uncertainties. The same approach can be applied to the decay Bs → Kℓν to provide an alternative determination of |Vub| once the process has been measured experimentally. In anticipation of future experimental measurements, we make predictions for B → πℓν and Bs → Kℓν differential branching fractions and forward-backward asymmetries in the Standard Model.« less

  18. ELLs: What's the Endgame?

    ERIC Educational Resources Information Center

    Rance-Roney, Judith

    2011-01-01

    For many English language learners, the endgame isn't passing state exams--it's attending and graduating from college. Yet schools often focus on a lower target: proficiency. To support the transition of English language learners to postsecondary success, schools should create formal transition plans, provide differentiated guidance, focus on…

  19. $B \\to \\pi \\ell \

    SciTech Connect

    Flynn, J. M.; Izubuchi, T.; Kawanai, T.; Lehner, C.; Soni, A.; Van de Water, R. S.; Witzel, O.

    2015-04-14

    We calculate the form factors for B → πℓν and Bs → Kℓν decay in dynamical lattice quantum chromodynamics (QCD) using domain-wall light quarks and relativistic b-quarks. We use the (2+1)-flavor gauge-field ensembles generated by the RBC and UKQCD collaborations with the domain-wall fermion action and Iwasaki gauge action. For the b-quarks we use the anisotropic clover action with a relativistic heavy-quark interpretation. We analyze data at two lattice spacings of a ≈ 0.11, 0.086 fm with unitary pion masses as light as Mπ ≈ 290 MeV. We simultaneously extrapolate our numerical results to the physical light-quark masses and to the continuum and interpolate in the pion/kaon energy using SU(2) “hard-pion” chiral perturbation theory for heavy-light meson form factors. We provide complete systematic error budgets for the vector and scalar form factors f + (q2) and f0(q2) for both B → πℓν and Bs → Kℓν at three momenta that span the q2 range accessible in our numerical simulations. Next we extrapolate these results to q2 = 0 using a model-independent z-parametrization based on analyticity and unitarity. We present our final results for f+(q2) and f0(q2)as the coefficients of the series in z and the matrix of correlations between them; this provides a parametrization of the form factors valid over the entire allowed kinematic range. Our results agree with other three-flavor lattice-QCD determinations using staggered light quarks, and have comparable precision, thereby providing important independent cross-checks. Both B → πℓν and Bs → Kℓν decays enable determinations of the Cabibbo-Kobayashi-Maskawa matrix element |Vub|. Furthermore, we perform a combined z-fit of our numerical B → πℓν form-factor data with the experimental measurements of the branching fraction from BABAR and Belle leaving the relative normalization as a free parameter; we obtain |Vub| = 3.61(32)×10-3, where the error includes statistical and all systematic uncertainties. The same approach can be applied to the decay Bs → Kℓν to provide an alternative determination of |Vub| once the process has been measured experimentally. In anticipation of future experimental measurements, we make predictions for B → πℓν and Bs → Kℓν differential branching fractions and forward-backward asymmetries in the Standard Model.

  20. The Efficacy and Safety of 17α-Estradiol (Ell-Cranell® alpha 0.025%) Solution on Female Pattern Hair Loss: Single Center, Open-Label, Non-Comparative, Phase IV Study

    PubMed Central

    Kim, Jae-Hong; Lee, Sung Yul; Lee, Hae-Jin; Yoon, Na-Young

    2012-01-01

    Background There are several commercially available agents to treat female pattern hair loss (FPHL), including minoxidil solution, anti-androgen agents and mineral supplements. However, these treatments are not always satisfactory. We report the results of a clinical trial of 17α-estradiol (Ell-Cranell® alpha 0.025%) solution to Korean female patients with FPHL. Objective This study was designed to examine the efficacy and safety of Ell-Cranell® alpha 0.025% solution in Korean female patients with FPHL. Methods A total of 53 women, 18 to 55 years old, applied topical Ell-Cranell® alpha 0.025% solution once daily for 8 months. Efficacy was evaluated by the change of hair counts and diameter, subjective assessment, and photographic assessment by investigators. Results Hair counts and diameter from baseline to 4 and 8 months after treatment increased in treated patients and these changes were statistically significant (p<0.0001). 17α-estradiol (Ell-Cranell® alpha 0.025%) solution showed significant improvement by subjective self-assessment and by investigator photographic assessment. Ell-Cranell® alpha 0.025% solution was well tolerated over 8-months period. Conclusion This study showed that Ell-Cranell® alpha 0.025% solution is a safe and effective agent for Korean women with FPHL. PMID:22879713

  1. The Efficacy and Safety of 17α-Estradiol (Ell-Cranell® alpha 0.025%) Solution on Female Pattern Hair Loss: Single Center, Open-Label, Non-Comparative, Phase IV Study.

    PubMed

    Kim, Jae-Hong; Lee, Sung Yul; Lee, Hae-Jin; Yoon, Na-Young; Lee, Won-Soo

    2012-08-01

    There are several commercially available agents to treat female pattern hair loss (FPHL), including minoxidil solution, anti-androgen agents and mineral supplements. However, these treatments are not always satisfactory. We report the results of a clinical trial of 17α-estradiol (Ell-Cranell® alpha 0.025%) solution to Korean female patients with FPHL. This study was designed to examine the efficacy and safety of Ell-Cranell® alpha 0.025% solution in Korean female patients with FPHL. A total of 53 women, 18 to 55 years old, applied topical Ell-Cranell® alpha 0.025% solution once daily for 8 months. Efficacy was evaluated by the change of hair counts and diameter, subjective assessment, and photographic assessment by investigators. Hair counts and diameter from baseline to 4 and 8 months after treatment increased in treated patients and these changes were statistically significant (p<0.0001). 17α-estradiol (Ell-Cranell® alpha 0.025%) solution showed significant improvement by subjective self-assessment and by investigator photographic assessment. Ell-Cranell® alpha 0.025% solution was well tolerated over 8-months period. This study showed that Ell-Cranell® alpha 0.025% solution is a safe and effective agent for Korean women with FPHL.

  2. Inter-rater reliability of the Berg Balance Scale, 30 s chair stand test and 6 m walking test, and construct validity of the Berg Balance Scale in nursing home residents with mild-to-moderate dementia

    PubMed Central

    Telenius, Elisabeth Wiken; Engedal, Knut; Bergland, Astrid

    2015-01-01

    Objective When testing physical function, patients must be alert and have the capacity to understand and respond to instructions. Patients with dementia may have difficulties fulfilling these requirements and, therefore, the reliability of the measures may be compromised. We aimed to assess the inter-rater reliability between pairs of observers independently rating the participant in the Berg Balance Scale (BBS), 30 s chair stand test (CST) and 6 m walking test. We also wanted to investigate the internal consistency of the BBS. Design Cross-sectional study. Setting We included 33 nursing home patients with a mild-to-moderate degree of dementia and tested them once with two evaluators present. One evaluator gave instructions and both evaluators scored the patients’ performance. Weighted κ, intraclass correlation coefficient (ICC) model 2.1 with 95% CIs and minimal detectable change (MDC) were used to measure inter-rater reliability. Cronbach's α was calculated to evaluate the internal consistency of the BBS sum score. Results The mean values of the BBS scored by the two evaluators were 38±13.7 and 38.0±13.8, respectively. Weighted κ scores for the BBS items varied from 0.83 to 1.0. ICC for the BBS's sum score was 0.99, and the MDC was 2.7% and 7%, respectively. The Cronbach’s α of the BBS's sum score was 0.9. The ICC of the CST and 6 m walking test was 1 and 0.97, respectively. The MDC on the 6 m walking test was 0.08% and 15.2%, respectively. Conclusions The results reveal an excellent relative inter-rater reliability of the BBS, CST and 6 m walking test as well as high internal consistency for the BBS in a population of nursing home residents with mild-to-moderate dementia. The absolute reliability was 2.7 on the BBS and 0.08 on the 6 m walking test. PMID:26346874

  3. Cloning of ELL, a gene that fuses to MLL in a t(11; 19)(q23; p13. 1) in acute myeloid leukemia

    SciTech Connect

    Thirman, M.J.; Levitan, D.A.; Kobayashi, H.; Simon, M.C.; Rowley, J.D. )

    1994-12-06

    To characterize the functions of MLL fusion transcripts, we cloned the gene that fuses to MLL in the translocation t(11;19)(q23;p13.1). This translocation is distinct from another type of 11;19 translocation with a 19p13.3 breakpoint that results in the fusion of MLL to the ENL gene. By PCR screening of a cDNA library prepared from a patient's leukemia cells with this translocation, we obtained a fusion transcript containing exon 7 of MLL and sequence of an unknown gene. The sequence of this gene was amplified and used as a probe to screen a fetal brain cDNA library. On Northern blot analysis, this cDNA detected a 4.4-kb transcript that was abundant in peripheral blood leukocytes, skeletal muscle, placenta, and testis and expressed at lower levels in spleen, thymus, heart, brain, lung, kidney, liver, and ovary. In addition, a 2.8-kb transcript was present in peripheral blood, testis, and placenta. On [open quotes]zoo blots,[close quotes] this gene was shown to be evolutionarily conserved in 10 mammalian species as well as in chicken, frog, and fish. We have named this gene ELL (for eleven-nineteen lysine-rich leukemia gene). A highly basic, lysine-rich motif of the predicted ELL protein is homologous to similar regions of several proteins, including the DNA-binding domain of poly(ADP-ribose) polymerase. The characterization of the normal functions of ELL as well as its altered function when fused to MLL will be critical to further our understanding of the mechanisms of leukemogenesis. 30 refs., 7 figs.

  4. AFF4, a component of the ELL/p-TEFb elongation complex and a shared subunit of MLL chimeras can link transcription elongation to leukemia

    PubMed Central

    Lin, Chengqi; Smith, Edwin R.; Takahashi, Hidehisa; Lai, Ka-Chun; Martin-Brown, Skylar; Florens, Laurence; Washburn, Michael P.; Conaway, Joan W.; Conaway, Ronald C.; Shilatifard, Ali

    2010-01-01

    Chromosomal translocations involving the MLL gene are associated with infant acute lymphoblastic and mixed lineage leukemia. There are a large number of translocation partners of MLL that share very little sequence or seemingly functional similarities, however, their translocations into MLL result in the pathogenesis of leukemia. To define the molecular reason why these translocations result in the pathogenesis of leukemia, we purified several of the commonly occurring MLL chimeras. We have identified a novel super elongation complex (SEC) associated with all chimeras purified. SEC includes ELL, P-TEFb, AFF4 and several other factors. AFF4 is required for SEC stability and proper transcription by poised RNA polymerase II in metazoans. Knockdown of AFF4 within SEC in leukemic cells shows reduction in MLL chimera target gene expression suggesting that AFF4/SEC could be a key regulator in the pathogenesis of leukemia through many of the MLL partners. PMID:20159561

  5. Comparison of the original and reduced versions of the Berg Balance Scale and the Western Ontario and McMaster Universities Osteoarthritis Index in patients following hip or knee arthroplasty.

    PubMed

    Jogi, Pankaj; Spaulding, Sandi J; Zecevic, Aleksandra A; Overend, Tom J; Kramer, John F

    2011-01-01

    To compare the original and reduced versions of the Berg Balance Scale (BBS) and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), as completed by patients following total hip arthroplasty (THA) or total knee arthroplasty (TKA), with respect to their potential utility in clinical and research settings. Patients with THA (n=26) or TKA (n=28) were evaluated before and after 5 to 7 weeks' participation in a home-based exercise programme. They were assessed using the original versions of the BBS and the WOMAC; scores for the reduced versions of the BBS and the WOMAC were extracted from the original versions. Good to excellent correlations (r≥0.80) were observed between the original and the reduced versions of the BBS and the WOMAC. The index of responsiveness, evaluated using standardized response means (SRM), was similar for the original and the reduced versions of the BBS and the WOMAC function sub-scale. The reduced versions of the BBS and the WOMAC provided similar information to the original versions and were equally responsive. These reduced versions comprise fewer questions and may be completed in considerably less time, which suggests that they may be advantageous for clinical and research use.

  6. Comparison of the Original and Reduced Versions of the Berg Balance Scale and the Western Ontario and McMaster Universities Osteoarthritis Index in Patients Following Hip or Knee Arthroplasty

    PubMed Central

    Spaulding, Sandi J.; Zecevic, Aleksandra A.; Overend, Tom J.; Kramer, John F.

    2011-01-01

    ABSTRACT Purpose: To compare the original and reduced versions of the Berg Balance Scale (BBS) and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), as completed by patients following total hip arthroplasty (THA) or total knee arthroplasty (TKA), with respect to their potential utility in clinical and research settings. Method: Patients with THA (n=26) or TKA (n=28) were evaluated before and after 5 to 7 weeks' participation in a home-based exercise programme. They were assessed using the original versions of the BBS and the WOMAC; scores for the reduced versions of the BBS and the WOMAC were extracted from the original versions. Results: Good to excellent correlations (r≥0.80) were observed between the original and the reduced versions of the BBS and the WOMAC. The index of responsiveness, evaluated using standardized response means (SRM), was similar for the original and the reduced versions of the BBS and the WOMAC function sub-scale. Conclusions: The reduced versions of the BBS and the WOMAC provided similar information to the original versions and were equally responsive. These reduced versions comprise fewer questions and may be completed in considerably less time, which suggests that they may be advantageous for clinical and research use. PMID:22210988

  7. Reply to Comments to X. Li and Y. M. Wang (2011) Comparisons of geoid models over Alaska computed with different Stokes' kernel modifications, JGS 1(2): 136-142 by L. E. Sjöberg

    NASA Astrophysics Data System (ADS)

    Wang, Y.

    2012-01-01

    The authors thank professor Sjöberg for having interest in our paper. The main goal of the paper is to test kernel modification methods used in geoid computations. Our tests found that Vanicek/Kleusberg's and Featherstone's methods fit the GPS/leveling data the best in the relative sense at various cap sizes. At the same time, we also pointed out that their methods are unstable and the mean values change from dm to meters by just changing the cap size. By contrast, the modification of the Wong and Gore type (including the spectral combination, method of Heck and Grüninger) is stable and insensitive to the truncation degree and cap size. This feature is especially useful when we know the accuracy of the gravity field at different frequency bands. For instance, it is advisable to truncate Stokes' kernel at a degree to which the satellite model is believed to be more accurate than surface data. The method of the Wong and Goretype does this job quite well. In contrast, the low degrees of Stokes' kernel are modified by Molodensky's coefficients tn in Vanicek/Kleusberg's and Featherstone's methods (cf. Eq. (6) in Li and Wang (2011)). It implies that the low degree gravity field of the reference model will be altered by less accurate surface data in the final geoid. This is also the cause of the larger variation in mean values of the geoid.

  8. The Mini-Balance Evaluation Systems Test (Mini-BESTest) Demonstrates Higher Accuracy in Identifying Older Adult Participants With History of Falls Than Do the BESTest, Berg Balance Scale, or Timed Up and Go Test.

    PubMed

    Yingyongyudha, Anyamanee; Saengsirisuwan, Vitoon; Panichaporn, Wanvisa; Boonsinsukh, Rumpa

    2016-01-01

    Balance deficits a significant predictor of falls in older adults. The Balance Evaluation Systems Test (BESTest) and the Mini-Balance Evaluation Systems Test (Mini-BESTest) are tools that may predict the likelihood of a fall, but their capabilities and accuracies have not been adequately addressed. Therefore, this study aimed at examining the capabilities of the BESTest and Mini-BESTest for identifying older adult with history of falls and comparing the participants with history of falls identification accuracy of the BESTest, Mini-BESTest, Berg Balance Scale (BBS), and the Timed Up and Go Test (TUG) for identifying participants with a history of falls. Two hundred healthy older adults with a mean age of 70 years were classified into participants with and without history of fall groups on the basis of their 12-month fall history. Their balance abilities were assessed using the BESTest, Mini-BESTest, BBS, and TUG. An analysis of the resulting receiver operating characteristic curves was performed to calculate the area under the curve (AUC), sensitivity, specificity, cutoff score, and posttest accuracy of each. The Mini-BESTest showed the highest AUC (0.84) compared with the BESTest (0.74), BBS (0.69), and TUG (0.35), suggesting that the Mini-BESTest had the highest accuracy in identifying older adult with history of falls. At the cutoff score of 16 (out of 28), the Mini-BESTest demonstrated a posttest accuracy of 85% with a sensitivity of 85% and specificity of 75%. The Mini-BESTest had the highest posttest accuracy, with the others having results of 76% (BESTest), 60% (BBS), and 65% (TUG). The Mini-BESTest is the most accurate tool for identifying older adult with history of falls compared with the BESTest, BBS, and TUG.

  9. Fast-Turnoff Transient Electro-Magnetic (TEM) geophysical survey in the Peña de Hierro ("Berg of Iron") field area of the Mars Analog Research and Technology Experiment (MARTE)

    NASA Astrophysics Data System (ADS)

    Jernsletten, J. A.

    2004-12-01

    This report describes the outcome of a Fast-Turnoff Transient Electro-Magnetic (TEM) geophysical survey carried out in the Peña de Hierro ("Berg of Iron") field area of the Mars Analog Research and Technology Experiment (MARTE), during May and June of 2003. The MARTE Peña de Hierro field area is located between the towns of Rio Tinto and Nerva in the Andalucia region of Spain. It is about one hour drive West of the city of Sevilla, and also about one hour drive North of Huelva. The high concentration of dissolved iron (and smaller amounts of other metals) in the very acidic water in the Rio Tinto area gives the water its characteristic wine red color, and also means that the water is highly conductive, and such an acidic and conductive fluid is highly suited for exploration by electromagnetic methods. This naturally acidic environment is maintained by bacteria in the groundwater and it is these bacteria that are the main focus of the MARTE project overall, and of this supporting geophysical work. It is the goal of this study to be able to map the subsurface extent of the high conductivity (low resistivity) levels, and thus by proxy the subsurface extent of the acidic groundwater and the bacteria populations. In so doing, the viability of using electromagnetic methods for mapping these subsurface metal-rich water bodies is also examined and demonstrated, and the geophysical data will serve to support drilling efforts. The purpose of this field survey was an initial effort to map certain conductive features in the field area, in support of the drilling operations that are central to the MARTE project. These conductive features include the primary target of exploration for MARTE, the very conductive acidic groundwater in the area (which is extremely rich in metals). Other conductive features include the pyretic ore bodies in the area, as well as extensive mine tailings piles.

  10. Determination of the Branching Fraction for B rightarrow X{sub c} ell nu Decays and of |V{sub cb}| from Hadronic-Mass and Lepton-Energy Moments

    SciTech Connect

    Aubert, B.

    2004-04-12

    We determine the inclusive B {yields} X{sub c}{ell}{nu} branching fraction, {Beta}{sub c{ell}{nu}}, the CKM matrix element |V{sub cb}|, and other heavy-quark parameters from a simultaneous fit to moments of the hadronic-mass and lepton-energy distributions in semileptonic B-meson decays, measured as a function of the lower limit on the lepton energy, using data recorded with the BABAR detector. Using Heavy Quark Expansions (HQEs) to order 1/m{sub b}{sup 3}, we extract {Beta}{sub ce{nu}} = (10.61 {+-} 0.16{sub exp} {+-} 0.06{sub HQE})% and |V{sub cb}| = (41.4 {+-} 0.4{sub exp} {+-} 0.4{sub HQE} {+-} 0.6{sub th}) x 10{sup -3}. The stated errors refer to the experimental, HQE, and additional theoretical uncertainties.

  11. Measurement of the Standard Model $ZZ$ Cross-Section in the $ZZ \\to \\ell\\ell\\ell\\ell$ Channel

    SciTech Connect

    Rodriguez, Tatiana Isabel

    2011-01-01

    In this thesis we study one of the last corners of the Standard Model to be thoroughly investigated in a hadron collider, the production of two simultaneous Z bosons. We analyze 6.1 fb-1 of data produced at Fermilab at a center-of-mass energy √s = 1.96 TeV and recorded by the CDF experiment. The predicted cross-section is 1.4 pb and we measured 2.18+0.64 -0.63 pb (stat) 0:30 (syst) using 14 observed events. This is the largest set of candidate events in this channel yet found and with our estimated signal in the sample of 9.54 events provides the smallest percentage uncertainty on the ZZ cross-section to date. We also use this large set of events to yield kinematic plots and measure ZZ properties that will be of use in probing for new physics in the future.

  12. ILS Element Ell Design Influence

    DTIC Science & Technology

    1991-04-01

    and typing support were most competently provided by Barbara Boren and Denise Montanez . We gratefully acknowledge the significant contributions made to...should boot-up and the hard disk driv;e prompt (usually C :’\\) should appear on the screen. 2. Insert the copy of disk 1, ILS Assessment Software...into Drive A. ILS REVIEW SOFTWARE INSTALLATION AND BACKUP 2-3 3. After the C :\\ prompt, type "MD C :\\ILS" and press <Enter>. This creates an ILS directory

  13. Reaching ELLs with Mobile Devices

    ERIC Educational Resources Information Center

    Ullman, Ellen

    2010-01-01

    This article profiles Grace Poli, a creative media specialist and technology supervisor at Union City (New Jersey) High School, who uses iPods to engage with students learning English. This area has a high population of limited-English speakers, many of whom come in to the district with no formal education. Poli was determined to find a way to use…

  14. Blues for Elle - Microbial Bebop

    SciTech Connect

    Peter Larsen

    2012-10-01

    This musical composition was created from data of microbes - bacteria, algae and other microorganisms - sampled in the English Channel. (Above, the USS Winston S. Churchill traverses the English Channel.) Argonne National Laboratory biologist Peter Larsen created the songs as a unique way to present and comprehend large datasets. Some marine microbial taxa are most often present in the L4 Station community at very low abundance, but occasionally become highly dominant community members. To link these microbial blooms to relevant physical parameters, the chords in this composition are derived from changes in chlorophyll A concentrations and salinity. The melody for each measure is derived from the relative abundances of typically rare taxa that were observed to occasionally bloom to higher abundance in the following order: Cyanobacteria, Vibrionales, Opitulates, Pseudomondales, Rhizobiales, Bacillales, Oceanospirallales, and Sphingomonadales. More information at http://www.anl.gov/articles/songs-key... Photo: USS Winston S. Churchill and Royal Navy HMS Cumberland transit the English Channel, courtesy U.S. Navy (http://www.flickr.com/photos/usnavy/5...)

  15. Researchers: ELL Surveys Are Flawed

    ERIC Educational Resources Information Center

    Zehr, Mary Ann

    2010-01-01

    The author reports on a review of state policies by researchers from the University of California, Los Angeles, which raises questions about the validity of the use of home-language surveys as a step to identify students eligible for special help in learning English. While it's ubiquitous in schools across the country, the practice of educators'…

  16. Districts Neglecting Programs for ELLs

    ERIC Educational Resources Information Center

    Zehr, Mary Ann

    2010-01-01

    The author reports on state and independent reviews that cite shortcomings in four urban systems. According to the reviews of those school systems over the past two years, four urban districts--in Boston, Massachusetts; Buffalo, New York; Portland, Oregon; and Seattle, Washington--did not provide special help to learn English to all students…

  17. Teaching Argument Writing to ELLs

    ERIC Educational Resources Information Center

    Ferlazzo, Larry; Hull-Sypnieski, Katie

    2014-01-01

    "How in the world are we supposed to apply the Common Core writing standards to teaching English language learners?" The authors propose a tentative answer to a question that has been troubling educators of late. Educators, they suggest, need to keep in mind three crucial elements: Students should (1) begin by reading more informational…

  18. Teaching Argument Writing to ELLs

    ERIC Educational Resources Information Center

    Ferlazzo, Larry; Hull-Sypnieski, Katie

    2014-01-01

    "How in the world are we supposed to apply the Common Core writing standards to teaching English language learners?" The authors propose a tentative answer to a question that has been troubling educators of late. Educators, they suggest, need to keep in mind three crucial elements: Students should (1) begin by reading more informational…

  19. Reaching ELLs with Mobile Devices

    ERIC Educational Resources Information Center

    Ullman, Ellen

    2010-01-01

    This article profiles Grace Poli, a creative media specialist and technology supervisor at Union City (New Jersey) High School, who uses iPods to engage with students learning English. This area has a high population of limited-English speakers, many of whom come in to the district with no formal education. Poli was determined to find a way to use…

  20. Districts Neglecting Programs for ELLs

    ERIC Educational Resources Information Center

    Zehr, Mary Ann

    2010-01-01

    The author reports on state and independent reviews that cite shortcomings in four urban systems. According to the reviews of those school systems over the past two years, four urban districts--in Boston, Massachusetts; Buffalo, New York; Portland, Oregon; and Seattle, Washington--did not provide special help to learn English to all students…

  1. Particle-hole intruder levels in 67Cu, collectivity, monopole shifts, and the hockey-stick behaviour of ell - 1/2 5/2- levels in neutron-rich odd-mass Cu nuclei

    NASA Astrophysics Data System (ADS)

    Walters, W. B.; Chiara, C. J.

    2011-01-01

    A new sequence of gamma rays with energies of 572, 499, 585, and 674 keV has been identified in 67Cu populating the 7/2- level at 2362 keV. Owing to the strong population of the 2362-keV level via an ell = 3 proton pickup reaction, that level is assigned to be an f7/2-1 2-particle-1-hole "intruder" proton configuration, and the new levels are found to form a sequence consistent with intruder sequences in the adjacent odd-mass Cu isotopes and in the odd-mass Sb isotopes. The changing position of the intruder sequence in the odd-mass Cu isotopes is discussed and related to the onset of collectivity associated with the presence of g9/2 neutrons beyond N = 40. The increase in collectivity is also discussed for a number of isotonic and isotopic chains as more protons or neutrons, respectively, are added beyond an oscillator shell boundary. For most of these systems, the ell -1/2 levels show a systematic "hockey-stick-like" behaviour with a sharp decrease in energy with the addition of the first protons or neutrons, owing to both the added collectivity and the tensor interaction, and then a lower slope when collectivity changes are diminished and only the tensor interaction is influencing the changes in level positions.

  2. The Semileptonic Decay Modes {bar{B} rightarrow Dell bar{ν}} and {bar{B}s rightarrow Ds ell bar{ν}}: A New Analysis in Potential Model

    NASA Astrophysics Data System (ADS)

    Hassanabadi, H.; Rahmani, S.; Zarrinkamar, S.

    2016-04-01

    We consider the Schrödinger equation with a combination of Deng-Fan-type and harmonic terms. To solve the corresponding differential equation, we split the equation to two parts: the parent and the perturbation terms. We use the Nikiforov-Uvarov technique to solve the parent part. For the perturbation part, we apply the series expansion method. Next, using the calculated wave function, we investigate some bottom and charm mesons within the Isgur-Wise function formalism. We present especially semileptonic {bar{B} rightarrow Dell bar{ν}} and {bar{B}s rightarrow D_s ell bar{ν }} decay widths, branching ratios and {|V_{cb}|} (element of the CKM matrix). Masses of some pseudoscalar mesons are also indicated. Comparisons of our results with experimental values and other approaches are included.

  3. Biostratigraphy and assemblage evolution in Planktic Foraminifera across the Cretaceous-Paleogene transition in low latitude, northern and southern Tethys realm: El Kef GSSP, Elles (Tunisia) and Agost, Caravaca (Betic Cordillera, Spain)

    NASA Astrophysics Data System (ADS)

    Gallala, N.; Zaghbib-Turki, D.; Turki, M. M.; Arenillas, I.; Arz, J. A.; Molina, E.

    2009-04-01

    The detailed planktic foraminiferal biostratigraphic and quantitative study from the Cretaceous-Paleogene (K-Pg) transition interval of the most expanded and continuous sections located in Spanish (Agost, Caravaca) and Tunisian sections (El Kef and Ellès), allows us to establish the zonation and subzonation of this interval and to distinguish four Acme-stages across the K/Pg transition interval of these low latitude sections. The uppermost Maastrichtian in Tunisian and Spanish sections, is characterized by standard planktic foraminiferal zones: Abathomphalus mayaroensis subdivided into Plummerita hantkeninoides Subzones. This index species is absent at middle and high-latitude twice in Atlantic and Antarctic oceans. Consequently, this species is considered to be restricted to the tropical and subtropical deep seawater. The lower Danian is characterized by Guembelitria cretacea, Parvularugoglobigerina eugubina, and Parasubbotina pseudobulloides biozones. The Guembelitria cretacea Zone was subdivided into the Hedbergella holmdelensis and Parvularugoglobigerina longiapertura Subzones; the Parvularugoglobigerina eugubina Zone into the Parvularugoglobigerina sabina and Eoglobigerina simplicissima Subzones; and the Parasubbotina pseudobulloides Zone into the Eoglobigerina trivialis and Subbotina triloculinoides Subzones. These zones and subzones are less expanded at the Caravaca and Agost sections than in Tunisian sections: El Kef (Global Stratotype Section and Point for the K/Pg) and Ellès, but it is sufficiently expanded to analyze correctly the planktic foraminiferal assemblage evolution across the K-Pg transition. Across this transition, at the Tethys area, we have identified four Acme-stages: Acme-stage 0: is typical of the upper Maastrichtian interval is dominated by cosmopolitan species dwelling surface and intermediate seawater. Acme-stage 1: is typical of the G. cretacea Zone and is dominated by Guembelitria species belonging to "Cretaceous survivors" species

  4. Measurement of the $WZ\\rightarrow \\ell\

    SciTech Connect

    Abazov, Victor Mukhamedovich; Abbott, Braden Keim; Abolins, Maris A.; Acharya, Bannanje Sripath; Adams, Mark Raymond; Adams, Todd; Alexeev, Guennadi D.; Alkhazov, Georgiy D.; Alton, Andrew K.; Alverson, George O.; Alves, Gilvan Augusto; /Rio de Janeiro, CBPF /Nijmegen U.

    2010-06-01

    The standard model (SM) of particle physics has been extensively tested in the past three decades and is found to be in excellent agreement with experimental observations. It is widely assumed, however, that the SM is only a low energy approximation of a more general theory. Therefore, any significant deviation from the SM predictions yields information on the nature of a more fundamental theory. Production of WZ pairs is the least studied diboson process within the SM, as it is a charged final state and can only be produced at hadron colliders. A detailed study of this process probes the electroweak sector of the SM. In addition, searches for new phenomena in the production of heavy gauge boson pairs are interesting, as many extensions of the SM predict 1-4 additional heavy gauge bosons that can decay into a WZ boson pairs.

  5. 5 Strategies for Discourse Scaffolding ELLs

    ERIC Educational Resources Information Center

    Banse, Holland W.; Palacios, Natalia A.; Merritt, Eileen G.; Rimm-Kaufman, Sara E.

    2016-01-01

    Facilitating productive discussions in the mathematics classroom is a challenge for many teachers. Discourse--student communication of mathematical ideas with teachers and peers--provides a platform on which students share their understanding, clarify misperceptions, and evaluate ideas. If students are unable to access and participate in…

  6. Ten (Usually Wrong) Ideas about ELLs

    ERIC Educational Resources Information Center

    Gottschalk, Barbara

    2016-01-01

    ESOL teacher Barbara Gottshalk frequently hears well-intentioned but misinformed comments and questions about English language learners and her teaching field. In this article, she clarifies the misconceptions revealed by 10 common remarks--for example, "The students will never learn English if they don't speak it in their home,"…

  7. 5 Strategies for Discourse Scaffolding ELLs

    ERIC Educational Resources Information Center

    Banse, Holland W.; Palacios, Natalia A.; Merritt, Eileen G.; Rimm-Kaufman, Sara E.

    2016-01-01

    Facilitating productive discussions in the mathematics classroom is a challenge for many teachers. Discourse--student communication of mathematical ideas with teachers and peers--provides a platform on which students share their understanding, clarify misperceptions, and evaluate ideas. If students are unable to access and participate in…

  8. ELL Programs: Not "One Size Fits All"

    ERIC Educational Resources Information Center

    Honigsfeld, Andrea

    2009-01-01

    Rising immigration in the United States has been accompanied by growth in the number of children from homes where a language other than English is spoken. Of utmost national concern is to provide the best possible program models and educational opportunities to address the diverse needs of this growing group of students. This article provides an…

  9. Roots of Federal ELL Case Run Deep

    ERIC Educational Resources Information Center

    Zehr, Mary Ann

    2009-01-01

    The U.S. Supreme Court will hear oral arguments later this month from a class action Miriam Flores, 42-year-old Mexican-born homemaker, joined on behalf of her first child in 1996. The lawsuit, Flores v. State of Arizona, contends that programs for English-language learners in Nogales are deficient and receive inadequate funding from the state.…

  10. Roots of Federal ELL Case Run Deep

    ERIC Educational Resources Information Center

    Zehr, Mary Ann

    2009-01-01

    The U.S. Supreme Court will hear oral arguments later this month from a class action Miriam Flores, 42-year-old Mexican-born homemaker, joined on behalf of her first child in 1996. The lawsuit, Flores v. State of Arizona, contends that programs for English-language learners in Nogales are deficient and receive inadequate funding from the state.…

  11. Design Challenges Are "ELL-elementary"

    ERIC Educational Resources Information Center

    de Romero, Nancy Yocom; Slater, Pat; DeCristofano, Carolyn

    2006-01-01

    It has always been a challenge for elementary school teachers to help special needs students and English learners understand challenging, standards-based science content while their students are still developing English language skills. Through their work as pilot teachers for the Engineering is Elementary (EiE) program developed by the Museum of…

  12. Mainstreaming ELLs into Grade-Level Classes

    ERIC Educational Resources Information Center

    Varela, Elizabeth

    2010-01-01

    The No Child Left Behind Act (NCLB) placed a new focus and accountability on the achievement levels of English learners by requiring that they develop English proficiency and meet the same academic standards that all children are expected to meet by year 2014. Administrators and teachers are looking at ways English learners might progress more…

  13. Mainstreaming ELLs into Grade-Level Classes

    ERIC Educational Resources Information Center

    Varela, Elizabeth

    2010-01-01

    The No Child Left Behind Act (NCLB) placed a new focus and accountability on the achievement levels of English learners by requiring that they develop English proficiency and meet the same academic standards that all children are expected to meet by year 2014. Administrators and teachers are looking at ways English learners might progress more…

  14. Ten (Usually Wrong) Ideas about ELLs

    ERIC Educational Resources Information Center

    Gottschalk, Barbara

    2016-01-01

    ESOL teacher Barbara Gottshalk frequently hears well-intentioned but misinformed comments and questions about English language learners and her teaching field. In this article, she clarifies the misconceptions revealed by 10 common remarks--for example, "The students will never learn English if they don't speak it in their home,"…

  15. New triterpenoids from the latex of Euphorbia resinifera Berg.

    PubMed

    Wang, Shuyun; Liang, Honggang; Zhao, Yuqian; Wang, Guihua; Yao, Hong; Kasimu, Rena; Wu, Zhaohua; Li, Yan; Huang, Jian; Wang, Jinhui

    2016-01-01

    Nine novel compounds, six euphane triterpenes, Euphorol A-D (1-4), H (8) and I (9), and three tirucallane triterpenes, Euphorol E-G (5-7) including four nortriterpenes, together with seven known compounds (10-16) have been isolated from the methanol extraction of Euphorbium. Their structures were established on the basis of extensive analyses of their HR-ESI-MS, UV, IR, 1D and 2D NMR methods. A putative biogenetic relationship to these compounds was proposed. The cytotoxicity of all these isolates against MCF-7, U937 and C6 cancer cell lines was evaluated. Compounds 1-3, 10, 11 and 13-16 exhibited moderate cytotoxic activities.

  16. Success with ELLs: Assessing ELL Students in Mainstream Classes: A New Dilemma for the Teachers

    ERIC Educational Resources Information Center

    Guler, Nilufer

    2013-01-01

    This article suggests effective approaches to teaching English language learners in ways that can be of benefit to all students in mainstream middle and high school English classes. The five approaches described herein that mainstream ESL teachers can do to make assessments more accurate and reliable, as well as to address heterogeneity, are: (1)…

  17. $B\\to\\pi\\ell\\ell$ Form Factors for New-Physics Searches from Lattice QCD

    SciTech Connect

    Bailey, Jon A.

    2015-10-07

    The rare decay B→πℓ+- arises from b→d flavor-changing neutral currents and could be sensitive to physics beyond the standard model. Here, we present the first ab initio QCD calculation of the B→π tensor form factor fT. Together with the vector and scalar form factors f+ and f0 from our companion work [J. A. Bailey et al., Phys. Rev. D 92, 014024 (2015)], these parametrize the hadronic contribution to B→π semileptonic decays in any extension of the standard model. We obtain the total branching ratio BR(B+→π+μ+μ-)=20.4(2.1)×10-9 in the standard model, which is the most precise theoretical determination to date, and agrees with the recent measurement from the LHCb experiment [R. Aaij et al., J. High Energy Phys. 12 (2012) 125].

  18. Search for Standard Model $ZH \\to \\ell^+\\ell^-b\\bar{b}$ at DØ

    SciTech Connect

    Jiang, Peng

    2014-07-01

    We present a search for the Standard Model Higgs boson in the ZH → ℓ + ℓ ₋ $b\\bar{b}$ channel, using data collected with the DØ detector at the Fermilab Tevatron Collider. This analysis is based on a sample of reprocessed data incorporating several improve ments relative to a previous published result, and a modified multivariate analysis strategy. For a Standard Model Higgs boson of mass 125 GeV, the expected cross section limit over the Standard M odel prediction is improved by about 5% compared to the previous published results in this c hannel from the DØ Collaboration

  19. Success with ELLs: Assessing ELL Students in Mainstream Classes: A New Dilemma for the Teachers

    ERIC Educational Resources Information Center

    Guler, Nilufer

    2013-01-01

    This article suggests effective approaches to teaching English language learners in ways that can be of benefit to all students in mainstream middle and high school English classes. The five approaches described herein that mainstream ESL teachers can do to make assessments more accurate and reliable, as well as to address heterogeneity, are: (1)…

  20. $$B\\to\\pi\\ell\\ell$$ Form Factors for New-Physics Searches from Lattice QCD

    DOE PAGES

    Bailey, Jon A.

    2015-10-07

    The rare decay B→πℓ+ℓ- arises from b→d flavor-changing neutral currents and could be sensitive to physics beyond the standard model. Here, we present the first ab initio QCD calculation of the B→π tensor form factor fT. Together with the vector and scalar form factors f+ and f0 from our companion work [J. A. Bailey et al., Phys. Rev. D 92, 014024 (2015)], these parametrize the hadronic contribution to B→π semileptonic decays in any extension of the standard model. We obtain the total branching ratio BR(B+→π+μ+μ-)=20.4(2.1)×10-9 in the standard model, which is the most precise theoretical determination to date, and agreesmore » with the recent measurement from the LHCb experiment [R. Aaij et al., J. High Energy Phys. 12 (2012) 125].« less

  1. Model Common-Core Unit Piloted for ELL Teachers

    ERIC Educational Resources Information Center

    Maxwell, Lesli A.

    2013-01-01

    Seventh and 8th grade English-learners in selected urban schools will soon dive into some of the most celebrated speeches in U.S. history. They'll dissect, for example, Abraham Lincoln's Gettysburg Address, Martin Luther King Jr.'s "I Have a Dream," and Robert F. Kennedy's "On the Death of Martin Luther King." Though their…

  2. Federal Attention on ELL Needs Seen to Wane

    ERIC Educational Resources Information Center

    Maxwell, Lesli A.

    2012-01-01

    As the number of English learners continues to grow faster than that of any other group in the nation's public schools, concerns are mounting that the distinctive needs of those students and the educators who work with them are receiving diminishing attention from the U.S. Department of Education. Even as the federal government spends roughly $750…

  3. Scaffolding through Questions in Upper Elementary ELL Learning

    ERIC Educational Resources Information Center

    Kim, Youb

    2010-01-01

    Among teachers' various classroom discourse strategies, teacher questions are a powerful tool for guiding the linguistic and cognitive development of English as a second language (ESL) students (Gerstein, 1996; Gibbons, 2003). Because we do not know much about effective questioning strategies that support the growth of ESL students' thinking and…

  4. Federal Attention on ELL Needs Seen to Wane

    ERIC Educational Resources Information Center

    Maxwell, Lesli A.

    2012-01-01

    As the number of English learners continues to grow faster than that of any other group in the nation's public schools, concerns are mounting that the distinctive needs of those students and the educators who work with them are receiving diminishing attention from the U.S. Department of Education. Even as the federal government spends roughly $750…

  5. Supporting Fifth-Grade ELLs' Argumentative Writing Development

    ERIC Educational Resources Information Center

    O'Hallaron, Catherine L.

    2014-01-01

    This article reports instruction supporting the development of fifth grade English learners' argumentative writing in an English language arts setting. Arguments analyzed for the study were produced by the same students on two occasions, roughly 3 months apart. In the first instance, students discussed the source text in detail, but were given no…

  6. Research Says / Tap ELLs' Strengths to Spur Success

    ERIC Educational Resources Information Center

    Goodwin, Bryan; Hein, Heather

    2016-01-01

    On the surface, learning a second language may seem to be a simple one- to two-year undertaking. Research shows, however, that it's a far more complex endeavor. This article considers the depth of learning required to become academically proficient in a second language. For instance, language learners learn the basics of reading in a second…

  7. ELL School Readiness and Pre-Kindergarten Care

    ERIC Educational Resources Information Center

    Gottfried, Michael A.

    2017-01-01

    The increased utilization of non-parental pre-kindergarten care has spurred interest by both researchers and policy makers as to what types of care might be effective at boosting school readiness. Under-developed in the research has been an assessment of the influence of pre-kindergarten care on school readiness for English Language Learners…

  8. Reflection on Personal ELL Experience and ELT Practice

    ERIC Educational Resources Information Center

    Ma, Zhicheng

    2008-01-01

    Multitudes of language teaching practice shows that great attention drawn to language learning can help language teachers better their teaching and give appropriate learning support to language learners. A critical analysis of the author's English language learning experience is given in the paper, encompassing the approaches used, the role of the…

  9. Research Says / Tap ELLs' Strengths to Spur Success

    ERIC Educational Resources Information Center

    Goodwin, Bryan; Hein, Heather

    2016-01-01

    On the surface, learning a second language may seem to be a simple one- to two-year undertaking. Research shows, however, that it's a far more complex endeavor. This article considers the depth of learning required to become academically proficient in a second language. For instance, language learners learn the basics of reading in a second…

  10. Tools of the Mind: Promoting the School Readiness of ELLs

    ERIC Educational Resources Information Center

    Hammer, Carol Scheffner; Blair, Clancy; Lopez, Lisa; Leong, Deb; Bedrova, Elena

    2012-01-01

    The purpose of this research is to examine the efficacy of "Tools of the Mind". Specifically, the aims of the research are to: (1) Evaluate the short- and long-term outcomes of Tools of the Mind, designed to promote school readiness for Latino preschoolers who are English Language Learners and at risk for later school difficulties; (2)…

  11. ELL School Readiness and Pre-Kindergarten Care

    ERIC Educational Resources Information Center

    Gottfried, Michael A.

    2017-01-01

    The increased utilization of non-parental pre-kindergarten care has spurred interest by both researchers and policy makers as to what types of care might be effective at boosting school readiness. Under-developed in the research has been an assessment of the influence of pre-kindergarten care on school readiness for English Language Learners…

  12. $|V_{ub}|$ from $B\\to\\pi\\ell\

    SciTech Connect

    Bailey, Jon A.; et al.

    2015-07-23

    We present a lattice-QCD calculation of the B → πℓν semileptonic form factors and a new determination of the CKM matrix element |Vub|. We use the MILC asqtad (2+1)-flavor lattice configurations at four lattice spacings and light-quark masses down to 1/20 of the physical strange-quark mass. We extrapolate the lattice form factors to the continuum using staggered chiral perturbation theory in the hard-pion and SU(2) limits. We employ a model-independent z parametrization to extrapolate our lattice form factors from large-recoil momentum to the full kinematic range. We introduce a new functional method to propagate information from the chiral-continuum extrapolation to the z expansion. We present our results together with a complete systematic error budget, including a covariance matrix to enable the combination of our form factors with other lattice-QCD and experimental results. To obtain |Vub|, we simultaneously fit the experimental data for the B → πℓν differential decay rate obtained by the BABAR and Belle collaborations together with our lattice form-factor results. We find |Vub|=(3.72±0.16) × 10–3, where the error is from the combined fit to lattice plus experiments and includes all sources of uncertainty. Our form-factor results bring the QCD error on |Vub| to the same level as the experimental error. We also provide results for the B → πℓν vector and scalar form factors obtained from the combined lattice and experiment fit, which are more precisely determined than from our lattice-QCD calculation alone. Lastly, these results can be used in other phenomenological applications and to test other approaches to QCD.

  13. Magnetically modified bioсells in constant magnetic field

    NASA Astrophysics Data System (ADS)

    Abramov, E. G.; Panina, L. K.; Kolikov, V. A.; Bogomolova, E. V.; Snetov, V. N.; Cherepkova, I. A.; Kiselev, A. A.

    2017-02-01

    Paper addresses the inverse problem in determining the area, where the external constant magnetic field captures the biological cells modified by the magnetic nanoparticles. Zero velocity isolines, in area where the modified cells are captured by the magnetic field were determined by numerical method for two locations of the magnet. The problem was solved taking into account the gravitational field, magnetic induction, density of medium, concentration and size of cells, and size and magnetization of nanoparticles attached to the cell. Increase in the number of the nanoparticles attached to the cell and decrease in the cell' size, enlarges the area, where the modified cells are captured and concentrated by the magnet. Solution is confirmed by the visible pattern formation of the modified cells Saccharomyces cerevisiae.

  14. .... 11 ,... ·ell lis IJlI I SINce

    EPA Pesticide Factsheets

    ... " Chid Expnsllrl:' ASSt:'SSIl", ,It S .. ,'ti(lll \\\\dt~-r qual it \\' Ana1\\'sis Brandl 'ltlnitpring ;1l111 !lata SUpp"lrt DivisillJI (~':I-)'iJ) ()jlil'l' \\>\\ \\all'J K~-~ll\\.ltl ... K P ...

  15. Analysis of 2008 NCLB Accountability for ELL Students in California

    ERIC Educational Resources Information Center

    Chavez, Lisa

    2009-01-01

    In "Horne v. Flores," Petitioners in the Supreme Court have argued, among other things, that compliance with the No Child Left Behind Act (NCLB) should satisfy state obligations and, other than "individual instances of discrimination," district obligations to comply with the Equal Educational Opportunities Act. The purpose of…

  16. Model Common-Core Unit Piloted for ELL Teachers

    ERIC Educational Resources Information Center

    Maxwell, Lesli A.

    2013-01-01

    Seventh and 8th grade English-learners in selected urban schools will soon dive into some of the most celebrated speeches in U.S. history. They'll dissect, for example, Abraham Lincoln's Gettysburg Address, Martin Luther King Jr.'s "I Have a Dream," and Robert F. Kennedy's "On the Death of Martin Luther King." Though their…

  17. Precision Studies of Observables in $pp \\to W \\to \\ell \

    SciTech Connect

    Alioli, S.; et al.

    2016-06-07

    This report was prepared in the context of the LPCC "Electroweak Precision Measurements at the LHC WG" and summarizes the activity of a subgroup dedicated to the systematic comparison of public Monte Carlo codes, which describe the Drell-Yan processes at hadron colliders, in particular at the CERN Large Hadron Collider (LHC). This work represents an important step towards the definition of an accurate simulation framework necessary for very high-precision measurements of electroweak (EW) observables such as the $W$ boson mass and the weak mixing angle. All the codes considered in this report share at least next-to-leading-order (NLO) accuracy in the prediction of the total cross sections in an expansion either in the strong or in the EW coupling constant. The NLO fixed-order predictions have been scrutinized at the technical level, using exactly the same inputs, setup and perturbative accuracy, in order to quantify the level of agreement of different implementations of the same calculation. A dedicated comparison, again at the technical level, of three codes that reach next-to-next-to-leading-order (NNLO) accuracy in quantum chromodynamics (QCD) for the total cross section has also been performed. These fixed-order results are a well-defined reference that allows a classification of the impact of higher-order sets of radiative corrections. Several examples of higher-order effects due to the strong or the EW interaction are discussed in this common framework. Also the combination of QCD and EW corrections is discussed, together with the ambiguities that affect the final result, due to the choice of a specific combination recipe.

  18. $$|V_{ub}|$$ from $$B\\to\\pi\\ell\

    DOE PAGES

    Bailey, Jon A.; et al.

    2015-07-23

    We present a lattice-QCD calculation of the B → πℓν semileptonic form factors and a new determination of the CKM matrix element |Vub|. We use the MILC asqtad (2+1)-flavor lattice configurations at four lattice spacings and light-quark masses down to 1/20 of the physical strange-quark mass. We extrapolate the lattice form factors to the continuum using staggered chiral perturbation theory in the hard-pion and SU(2) limits. We employ a model-independent z parametrization to extrapolate our lattice form factors from large-recoil momentum to the full kinematic range. We introduce a new functional method to propagate information from the chiral-continuum extrapolation tomore » the z expansion. We present our results together with a complete systematic error budget, including a covariance matrix to enable the combination of our form factors with other lattice-QCD and experimental results. To obtain |Vub|, we simultaneously fit the experimental data for the B → πℓν differential decay rate obtained by the BABAR and Belle collaborations together with our lattice form-factor results. We find |Vub|=(3.72±0.16) × 10–3, where the error is from the combined fit to lattice plus experiments and includes all sources of uncertainty. Our form-factor results bring the QCD error on |Vub| to the same level as the experimental error. We also provide results for the B → πℓν vector and scalar form factors obtained from the combined lattice and experiment fit, which are more precisely determined than from our lattice-QCD calculation alone. Lastly, these results can be used in other phenomenological applications and to test other approaches to QCD.« less

  19. Search for $ZW/ZZ \\to \\ell^+ \\ell^-$ + Jets Production in $p\\bar{p}$ Collisions at CDF

    SciTech Connect

    Ketchum, Wesley Robert

    2012-12-01

    The Standard Model of particle physics describes weak interactions mediated by massive gauge bosons that interact with each other in well-defined ways. Observations of the production and decay of WW, WZ, and ZZ boson pairs are an opportunity to check that these self-interactions agree with the Standard Model predictions. Furthermore, final states that include quarks are very similar to the most prominent final state of Higgs bosons produced in association with a W or Z boson. Diboson production where WW is a significant component has been observed at the Tevatron collider in semi-hadronic decay modes. We present a search for ZW and ZZ production in a final state containing two charged leptons and two jets using 8.9 fb-1 of data recorded with the CDF detector at the Tevatron. We select events by identifying those that contain two charged leptons, two hadronic jets, and low transverse missing energy (ET ). We increase our acceptance by using a wide suite of high-pT lepton triggers and by relaxing many lepton identification requirements. We develop a new method for calculating corrections to jet energies based on whether the originating parton was a quark or gluon to improve the agreement between data and the Monte Carlo simulations used to model our diboson signal and dominant backgrounds. We also make use of neural-network-based discriminants that are trained to pick out jets originating from b quarks and light-flavor quarks, thereby increasing our sensitivity to Z → b$\\bar{b}$ and W=Z → q$\\bar{p'}$0 decays, respectively. The number of signal events is extracted through a simultaneous fit to the dijet mass spectrum in three channels: a heavy-flavor tagged channel, a light-flavor tagged channel, and an untagged channel. We measure σZW/ZZ= 2.5+2.0 -1.0 pb, which is consistent with the SM cross section of 5.1 pb. We establish an upper limit on the cross section of σZW/ZZ < 6.1 pb at 95% CL.

  20. Charter Schools and ELLs: An Authorizer and School Leader Guide to Educating ELLs. Authorizing Matters. Issue Brief

    ERIC Educational Resources Information Center

    Clair, Nancy

    2011-01-01

    Educators, school administrators, policymakers, and community members are responsible for providing a quality education for all students in the nation's public schools. Traditional and charter schools bear the duty to ensure that special populations of students have access to the best education possible. This responsibility makes it essential for…

  1. Cactoblastis cactorum (Berg) (Lepidoptera: Pyralidae) use of Opuntia host species in Argentina

    USDA-ARS?s Scientific Manuscript database

    A central aspect in biology and ecology is to determine the combination of factors that influence the distribution of species. In the case of herbivorous insects, the distribution of herbivorous species is necessarily associated with their host plants, a pattern often referred to as “host use”. Nove...

  2. Characterization of somatic embryo attached structures in Feijoa sellowiana Berg. (Myrtaceae).

    PubMed

    Correia, Sandra M; Canhoto, Jorge M

    2010-06-01

    The presence of an attached organ to somatic embryos of angiosperms connecting the embryo to the supporting tissue has been a subject of controversy. This study shows that 67% of the morphologically normal somatic embryos of Feijoa sellowiana possess this type of organ and that its formation was not affected by culture media composition. Histological and ultrastructural analysis indicated that the attached structures of somatic embryos displayed a great morphological diversity ranging from a few cells to massive and columnar structures. This contrast with the simple suspensors observed in zygotic embryos which were only formed by five cells. As well as the suspensor of zygotic embryos, somatic embryo attached structures undergo a process of degeneration in later stages of embryo development. Other characteristic shared by zygotic suspensors and somatic embryo attached structures was the presence of thick cell walls surrounding the cells. Elongated thin filaments were often associated with the structures attached to somatic embryos, whereas in other cases, tubular cells containing starch grains connected the embryo to the supporting tissue. These characteristics associated with the presence of plasmodesmata in the cells of the attached structures seem to indicate a role on embryo nutrition. However, cell proliferation in the attached structures resulting into new somatic embryos may also suggest a more complex relationship between the embryo and the structures connecting it to the supporting tissue.

  3. VizieR Online Data Catalog: Chandra observation of M67 (Van Den Berg+, 2004)

    NASA Astrophysics Data System (ADS)

    van den Berg, M.; Tagliaferri, G.; Belloni, T.; Verbunt, F.

    2004-04-01

    table1.dat summarizes the X-ray properties of the 158 sources detected by Chandra, and lists the ROSAT (Belloni et al., 1998A&A...335..517B) and optical (candidate) counterparts. table4.dat gives the estimated positions of fifteen faint candidate optical counterparts that were identified by eye in a deep ESO Imaging Survey (EIS) V-band image of M67. These sources are not included in the corresponding EIS source catalogue (Momany et al., 2001A&A...379..436M). (3 data files).

  4. Campomanesia adamantium (Cambess.) O. Berg seed desiccation: influence on vigor and nucleic acids.

    PubMed

    Dresch, Daiane M; Masetto, Tathiana E; Scalon, Silvana P Q

    2015-01-01

    The aim of this study was to evaluate the sensitivity of Campomanesia adamantium seeds to desiccation by drying in activated silica gel (fast) and under laboratory conditions (slow). To assess the sensitivity of the seeds to desiccation, we used drying with silica gel and drying under laboratory conditions (25 °C), in order to obtain seeds with moisture content of 45, 35, 30, 25, 20, 15, 10 and 5%. The physiological potential of the seeds after desiccation was evaluated by measuring primary root protrusion, percentage of normal seedlings, germination seed index, seedling length, total seedling dry mass, electrical conductivity and DNA and RNA integrities. The C. adamantium seeds were sensitive to desiccation and to a reduction in moisture content to 21.1% or less by desiccation using silica gel, and to 17.2% or less by desiccation under laboratory conditions; impairment of the physiological potential of the seeds was observed at these low moisture content levels. The integrity of the seed genomic DNA was not affected after drying seeds in the two methods. However, drying in silica gel to 4.5% moisture content and drying under laboratory conditions to 5.4% moisture content resulted in the loss of seed RNA integrity.

  5. The DFVLR wind-energy test facility 'Ulrich Huetter' on Schnittlinger Berg

    NASA Astrophysics Data System (ADS)

    Kussmann, Alfred

    1986-11-01

    The DFVLR test facility for wind-energy systems (named after Ulrich Huetter, the designer of the 100-kW GFRP-rotor W 34 wind turbine first manufactured and tested in the 1950s) is described and illustrated with photographs. The history of the facility is traced, and current operations in gathering, archiving, processing, interpreting, and documenting performance-test data are outlined. The facility includes instrumentation for rotor telemetry, gondola motion measurements, and ground measurements and provides testing services to private users on both contract and leasing bases.

  6. Characterization of volatiles in Costa Rican guava [Psidium friedrichsthalianum (Berg) Niedenzu] fruit.

    PubMed

    Pino, Jorge A; Marbot, Rolando; Vázquez, Carlos

    2002-10-09

    Volatile compounds were isolated from Costa Rican guava fruit by simultaneous steam distillation-solvent extraction according to the Likens-Nickerson method. Compounds were identified by capillary GC-MS and sensorially characterized by sniffing-GC. One hundred and seventy-three components were identified in the aroma concentrate, from which (E)-beta-caryophyllene, alpha-terpineol, alpha-pinene, alpha-selinene, beta-selinene, delta-cadinene, 4,11-selinadiene, and alpha-copaene were found to be the major constituents. The amounts of aliphatic esters and terpenic compounds were thought to contribute to the unique flavor of this fruit.

  7. Isolation and characterization of microsatellite markers in Acca sellowiana (Berg) Burret.

    PubMed

    Santos, K L; Santos, M O; Laborda, P R; Souza, A P; Peroni, N; Nodari, R O

    2008-09-01

    Acca sellowiana has commercial potential due to the quality and the unique flavor of its fruit. Conservation of natural populations and management of breeding programmes would benefit from the availability of molecular markers that could be used to characterize levels and distribution of genetic variability. Thus, 13 microsatellite markers were developed from an enriched genomic library of A. sellowiana. They were characterized using 40 samples. The expected and observed heterozygosities ranged from 0.513 to 0.913 and from 0.200 to 0.889, respectively. These are the first microsatellite loci characterized from A. sellowiana that will contribute to improve researches on its genetic conservation, characterization and breeding. © 2008 The Authors. Journal compilation © 2008 Blackwell Publishing Ltd.

  8. Isolation and characterization of microsatellite markers in Acca sellowiana (Berg) Burret.

    PubMed

    Santos, K L; Santos, M O; Laborda, P R; Souza, A P; Peroni, N; Nodari, R O

    2008-11-01

    Acca sellowiana has commercial potential because of the quality and the unique flavor of its fruit. Conservation of natural populations and management of breeding programmes would benefit from the availability of molecular markers that could be used to characterize levels and distribution of genetic variability. Thus, 13 microsatellite markers were developed from an enriched genomic library of A. sellowiana. They were characterized using 40 samples. The expected and observed heterozygosities ranged from 0.513 to 0.913 and from 0.200 to 0.889, respectively. These are the first microsatellite loci characterized from A. sellowiana that will contribute to improve researches on the genetic conservation, characterization and breeding. Journal compilation © 2008 Blackwell Publishing Ltd. No claim to original US government works.

  9. Volatile compounds of Psidium salutare (H.B.K.) Berg. fruit.

    PubMed

    Pino, Jorge A; Marbot, Rolando; Bello, Avilio

    2002-08-28

    Volatile compounds were isolated from Psidium salutare fruits by simultaneous steam distillation-solvent extraction according to the Likens-Nickerson procedure. Compounds were identified by capillary GC and GC-MS. One hundred and fifty compounds were identified in the aroma concentrate, from which limonene, myrcene, and alpha-pinene were found to be the major constituents in the fruit.

  10. Searches for the baryon- and lepton-number violating decays $B^0\\rightarrow\\Lambda_c^ \\ell^-$, $B^-\\rightarrow\\Lambda\\ell^-$, and $B^-\\rightarrow\\bar{\\Lambda}\\ell^-$

    SciTech Connect

    del Amo Sanchez, P.; Lees, J.P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D.A.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Brown, D.N.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G.; Osipenkov, I.L.; Koch, H.; Schroeder, T.; /Ruhr U., Bochum /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UC, Riverside /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /INFN, Ferrara /Ferrara U. /INFN, Ferrara /INFN, Ferrara /Ferrara U. /INFN, Ferrara /Frascati /INFN, Genoa /Genoa U. /INFN, Genoa /INFN, Genoa /Genoa U. /INFN, Genoa /Indian Inst. Tech., Guwahati /Harvard U. /Harvey Mudd Coll. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Paris U., VI-VII /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Milan U. /Milan U. /Milan U. /Milan U. /Milan U. /Mississippi U. /Montreal U. /INFN, Naples /Naples U. /NIKHEF, Amsterdam /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /INFN, Padua /Padua U. /INFN, Padua /INFN, Padua /Padua U. /Paris U., VI-VII /INFN, Perugia /Perugia U. /INFN, Pisa /Pisa U. /INFN, Pisa /Pisa, Scuola Normale Superiore /INFN, Pisa /Pisa U. /INFN, Pisa /Princeton U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /Rostock U. /Rutherford /DAPNIA, Saclay /SLAC /South Carolina U. /Southern Methodist U. /Stanford U., Phys. Dept. /SUNY, Albany /Tel Aviv U. /Tennessee U. /Texas Nuclear Corp., Austin /Texas U., Dallas /INFN, Turin /Turin U. /INFN, Trieste /Trieste U. /Valencia U. /Victoria U. /Warwick U. /Wisconsin U., Madison

    2011-06-22

    Searches for B mesons decaying to final states containing a baryon and a lepton are performed, where the baryon is either {Lambda}{sub c} or {Lambda} and the lepton is a muon or an electron. These decays violate both baryon and lepton number and would be a signature of physics beyond the standard model. No significant signal is observed in any of the decay modes, and upper limits in the range (3.2 - 520) x 10{sup -8} are set on the branching fractions at the 90% confidence level.

  11. A Search for the Higgs Boson Produced in Association with $Z\\to \\ell^+\\ell^-$ Using the Matrix Element Method at CDF II

    SciTech Connect

    Aaltonen, T.; Adelman, J.; Akimoto, T.; Alvarez Gonzalez, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Apresyan, A.; /Purdue U. /Waseda U.

    2009-08-01

    We present a search for associated production of the standard model (SM) Higgs boson and a Z boson where the Z boson decays to two leptons and the Higgs decays to a pair of b quarks in p{bar p} collisions at the Fermilab Tevatron. We use event probabilities based on SM matrix elements to construct a likelihood function of the Higgs content of the data sample. In a CDF data sample corresponding to an integrated luminosity of 2.7 fb{sup -1} we see no evidence of a Higgs boson with a mass between 100 GeV/c{sup 2} and 150 GeV/c{sup 2}. We set 95% confidence level (C.L.) upper limits on the cross-section for ZH production as a function of the Higgs boson mass m{sub H}; the limit is 8.2 times the SM prediction at m{sub H} = 115 GeV/c{sup 2}.

  12. Rearing and Release of Megamelus scutellaris Berg (Hemiptera: Delphacidae) for Biological Control of Water hyacinth in 2015

    DTIC Science & Technology

    2017-06-01

    research at the Engineer Research and Development Center (ERDC), Vicksburg, Mississippi is currently focused on the rearing and release of the...both the OS and NS were maintained in greenhouses at the ERDC and were kept separate to prevent genetic mixing. A number of sources have been used...Vicksburg, MS: U.S. Army Engineer Research and Development Center. Heard, T. A., and S. L. Winterton. 2000. Interactions between nutrient status and

  13. Comparison of genetic variation of wild and farmed Bream (Abramis brama orientalis; berg, 1905) using microsatellite markers

    PubMed Central

    Zeinab, Zeinab; Shabany, Ali; Kolangi-Miandare, Hamed

    2014-01-01

    Bream (Abramis brama orientalis) is one of the most commercially valuable fish in the Caspian Sea. The aim of this study was to compare levels of genetic polymorphism between wild and farmed Bream populations using seven microsatellite loci. Genetic diversity was investigated by studying samples collected from two regions; Chaboksar and the Artificial Propagation Center of Guilan province. Allele frequency was found to have declined in wild and cultured fish due to inbreeding and genetic drift. Significant population differentiation (Fst) was observed between wild and farmed populations, which could be explained by the low number of alleles in two populations. Significant deviations from the Hardy-Weinberg equilibrium were found at more loci. Beyond the null alleles' hypothesis, heterozygote deficiency may have arisen due to inbreeding. Both populations showed lowest genetic diversity according to the number of alleles and genotypes per each locus. This approach was carried out for the first time and could provide information regarding the genetic variability of farmed and wild abramis brama fish using microsatellite markers. Results could be used for the management and conservation of artificial Bream propagation programs. PMID:27843982

  14. First establishment of the planthopper Megamelus scutellaris Berg 1883 (Hemiptera: Delphacidae) released for biological control of water hyacinth in California

    USDA-ARS?s Scientific Manuscript database

    Water hyacinth (Eichhornia crassipes (Martius) Solms-Laubach) is a non-native, invasive floating aquatic weed in the Sacramento San Joaquin Delta and associated river watersheds of northern California. Prior efforts to control water hyacinth biologically in this region have not led to sustained cont...

  15. How Important Is the Assessment of Practical Work? An Opinion Piece on the New Biology A-Level from BERG

    ERIC Educational Resources Information Center

    Journal of Biological Education, 2014

    2014-01-01

    As education in England emerges from a major curriculum review (DfE 2013), the next few years will see significant changes in what is taught in schools and how this is assessed. As a core subject, under the current proposals, all students, from the beginning of primary school until age 16, will study science in some detail. Biology is an exciting,…

  16. [The molecular structure of iso-aloesin isolated from the leaves of Aloe vera L. var. chinensis (Haw.) Berge].

    PubMed

    Yuan, A X

    1993-10-01

    A new constituent iso-aloesin was isolated from the leaves of Aloe vera var. chinensis found in the Province of Guangxi. The molecular formula of iso-aloesin is C19H22O9, which is 2-acetonyl-6-C-beta-D-glucopyranosyl-7-hydroxy-5-methyl-chromone.

  17. Contextualising Inequalities in Rates of School Exclusion in English Schools: Beneath the "Tip of the Ice-Berg"

    ERIC Educational Resources Information Center

    Gazeley, Louise; Marrable, Tish; Brown, Chris; Boddy, Janet

    2015-01-01

    There is an increasing emphasis internationally on better understanding the links between inequalities and processes within school systems. In England there has been a particular focus on rates of school exclusion because the national data has consistently highlighted troubling patterns of over-representation. This paper argues that a move away…

  18. Native ecotypic variation and the role of host identity in the spread of an invasive herbivore Cactoblastis cactorum (Berg)

    USDA-ARS?s Scientific Manuscript database

    Environmental niche models (ENMs) have gained enormous popularity as tools to investigate potential changes in species distributions resulting from climate change and species introductions. Despite recognition that species interactions can influence the dynamics of invasion spread, most implementati...

  19. Acetonic Extract from the Feijoa sellowiana Berg. Fruit Exerts Antioxidant Properties and Modulates Disaccharidases Activities in Human Intestinal Epithelial Cells.

    PubMed

    Turco, Fabio; Palumbo, Ilaria; Andreozzi, Paolo; Sarnelli, Giovanni; De Ruberto, Francesca; Esposito, Giuseppe; Basile, Adriana; Cuomo, Rosario

    2016-08-01

    Feijoa sellowiana fruit has been shown to possess various biological activities, such as anti-bacterial and anti-cancer properties, in a variety of cellular models, but its activity on human intestinal epithelial cells has never been tested. The purpose of this study was to investigate the effects of the acetonic extract of F. sellowiana fruits on the viability, membrane peroxidation, disaccharidases activities and proliferation of in vitro models of human intestinal epithelial cells. To obtain this goal, Caco-2 and HT-29 cells were exposed to the acetonic extract for 24 h. Cell proliferation, viability, lactase and sucrase-isomaltase activity and H2 O2 -induced membrane lipid peroxidation were tested. We found that, compared to control conditions, the acetonic extract significantly increased lactase and sucrase-isomaltase activity in Caco-2, but not HT-29, cells, decreased proliferation, had no effects on viability and restored lipid peroxidation in both cell models. This study suggests that the acetonic extract improves lactase and sucrase-isomaltase activity, inhibits cell proliferation, have no cytotoxic effects and prevent lipid peroxidation of intestinal epithelial cells. These effects may be exploited in case of disaccharidases deficit and also as an adjuvant treatment of diseases related to oxidative stress. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.

  20. Contextualising Inequalities in Rates of School Exclusion in English Schools: Beneath the "Tip of the Ice-Berg"

    ERIC Educational Resources Information Center

    Gazeley, Louise; Marrable, Tish; Brown, Chris; Boddy, Janet

    2015-01-01

    There is an increasing emphasis internationally on better understanding the links between inequalities and processes within school systems. In England there has been a particular focus on rates of school exclusion because the national data has consistently highlighted troubling patterns of over-representation. This paper argues that a move away…

  1. The Use of Megamelus scutellaris Berg in the Southern United States as a Biocontrol Agent of Waterhyacinth (Eichhornia crassipes (Mart.))

    DTIC Science & Technology

    2014-07-01

    proximity) 30°11𔃽.48" N 6/12/2012 625 (Range 500- 750) 90°48󈧻.45"W Alligator Bayou, LA (Two cages in close proximity) 30°18’31.46”N 6/12...a June release, the two cages at Alligator Bayou were examined and waterhyacinth planthoppers were observed in both cages with the population in... Alligator Bayou; populations appeared lower at Alligator Bayou. Spiders were observed in cages at Alligator Bayou and may have contributed to poor

  2. How Important Is the Assessment of Practical Work? An Opinion Piece on the New Biology A-Level from BERG

    ERIC Educational Resources Information Center

    Journal of Biological Education, 2014

    2014-01-01

    As education in England emerges from a major curriculum review (DfE 2013), the next few years will see significant changes in what is taught in schools and how this is assessed. As a core subject, under the current proposals, all students, from the beginning of primary school until age 16, will study science in some detail. Biology is an exciting,…

  3. Relations between Teacher Questioning and Student Talk in One Elementary ELL Classroom

    ERIC Educational Resources Information Center

    Boyd, Maureen P.

    2015-01-01

    The purpose of this article is to raise awareness of how the varied form and responsive and response-able use of teacher questions can invite and direct not only more student talk in classrooms but elicit specific and varied features of student talk that enhance comprehension building and provide evidence of student engagement and high-level…

  4. Herself: Elle-Meme. Report of the Nova Scotia Task Force on the Status of Women.

    ERIC Educational Resources Information Center

    Nova Scotia Task Force on the Status of Women, Halifax.

    This report to the Canadian Government from the Nova Scotia Women's Task Force examines the social issues and problems pertaining to the women's movement in that province. Discussions are provided on the situations and attitudes toward homemakers, working women, marriage, divorce, child care, education, health, and political participation.…

  5. Integrating Career Skills into the English Class for ELLs: Promise and Peril

    ERIC Educational Resources Information Center

    DelliCarpini, Margo, Ed.

    2010-01-01

    Last year the author had the pleasure of working with a team of dedicated teachers in an alternative high school setting on the implementation of a grant she had written for their program. The grant was the Carl D. Perkins Career and Technical Education (CTE) Act grant, federally distributed to the states. As the grant writer and teacher…

  6. Measurements of the $ZZ$ production cross sections in the $2\\ell2\

    SciTech Connect

    Khachatryan, Vardan

    2015-10-29

    Measurements of the ZZ production cross sections in proton–proton collisions at center-of-mass energies of 7 and 8 TeV are presented. We found that candidate events for the leptonic decay mode ZZ → 2l2ν, where l denotes an electron or a muon, are reconstructed and selected from data corresponding to an integrated luminosity of 5.1 (19.6)fb-1 at 7 (8) TeV collected with the CMS experiment. The measured cross sections, σ(pp → ZZ)=5.1+1.5-1.4(stat)+1.4-1.1(syst)±0.1(lumi)pb at 7 TeV, and 7.2+0.8-0.8(stat)+1.9-1.5(syst)±0.2(lumi)pb at 8 TeV, are in good agreement with the standard model predictions with next-to-leading-order accuracy. Furthermore, the selected data are analyzed to search for anomalous triple gauge couplings involving the ZZ final state. In the absence of any deviation from the standard model predictions, limits are set on the relevant parameters. As a result, these limits are then combined with the previously published CMS results for ZZ in 4l final states, yielding the most stringent constraints on the anomalous couplings.

  7. Marzano Program for Building Academic Vocabulary: Supplemental Report of Effects on Specific Subgroups (FRL & ELL Students)

    ERIC Educational Resources Information Center

    Marzano, Robert J.

    2006-01-01

    During the 2004-2005 academic year, an evaluation study was conducted of the Building Academic Vocabulary (BAV) program. The findings from this study, reported in the document "Marzano Program for Building Academic Vocabulary: Preliminary Report of the 2004-2005 Evaluation Study" (Marzano, 2005), found that students who participated in the BAV…

  8. Increasing Engagement and Oral Language Skills of ELLs through the Arts in the Primary Grades

    ERIC Educational Resources Information Center

    Brouillette, Liane; Childress-Evans, Karen; Hinga, Briana; Farkas, George

    2014-01-01

    In this article, we look at the impact of an arts integration program offered at five large urban elementary schools on the daily attendance and oral language skills of children in kindergarten through second grade. Many of the children attending these schools spoke a language other than English at home. Teaching artists visited each class weekly…

  9. "A Squirrel Came and Pushed Earth:" Popular Cultural and Scientific Ways of Thinking for ELLs

    ERIC Educational Resources Information Center

    Ciechanowski, Kathryn M.

    2009-01-01

    This article reports on a study of how third-grade bilingual students drew from everyday resources, particularly popular culture, in science classes and how the use of these resources shaped how they made sense of academic texts. Six months of data collection in an urban Midwestern school demonstrated that students--especially English-language…

  10. ELL Excel: Using Peer Mentoring to Help English Language Learners Excel in American Classrooms

    ERIC Educational Resources Information Center

    Turney, Kristilynn M.

    2013-01-01

    This action research study describes implementation of a peer mentorship program to improve the performance of English language learners at the research site, a suburban high school in Ohio. With the rapidly increasing number of English language learners at the research site as well as schools across the country and the expectations of No Child…

  11. Perceptions and Use of Language Learning Strategies among ESL Teachers and ELLs

    ERIC Educational Resources Information Center

    Ardasheva, Yuliya; Tretter, Thomas R.

    2012-01-01

    This survey study explored perceptions and use of language learning strategies among English as a second language teachers and English-learning students (Grades 3-8, 10, and 11). The sample comprised 1,057 students (651 elementary, 275 middle, and 131 high school) and 54 teachers (31 elementary, 11 middle, and 12 high school) from 38 schools…

  12. The Intersection of Inquiry-Based Science and Language: Preparing Teachers for ELL Classrooms

    ERIC Educational Resources Information Center

    Weinburgh, Molly; Silva, Cecilia; Smith, Kathy Horak; Groulx, Judy; Nettles, Jenesta

    2014-01-01

    As teacher educators, we are tasked with preparing prospective teachers to enter a field that has undergone significant changes in student population and policy since we were K-12 teachers. With the emphasis placed on connections, mathematics integration, and communication by the New Generation Science Standards (NGSS) (Achieve in Next generation…

  13. Measurements of the $ZZ$ production cross sections in the $$2\\ell2\

    DOE PAGES

    Khachatryan, Vardan

    2015-10-29

    Measurements of the ZZ production cross sections in proton–proton collisions at center-of-mass energies of 7 and 8 TeV are presented. We found that candidate events for the leptonic decay mode ZZ → 2l2ν, where l denotes an electron or a muon, are reconstructed and selected from data corresponding to an integrated luminosity of 5.1 (19.6)fb-1 at 7 (8) TeV collected with the CMS experiment. The measured cross sections, σ(pp → ZZ)=5.1+1.5-1.4(stat)+1.4-1.1(syst)±0.1(lumi)pb at 7 TeV, and 7.2+0.8-0.8(stat)+1.9-1.5(syst)±0.2(lumi)pb at 8 TeV, are in good agreement with the standard model predictions with next-to-leading-order accuracy. Furthermore, the selected data are analyzed to search formore » anomalous triple gauge couplings involving the ZZ final state. In the absence of any deviation from the standard model predictions, limits are set on the relevant parameters. As a result, these limits are then combined with the previously published CMS results for ZZ in 4l final states, yielding the most stringent constraints on the anomalous couplings.« less

  14. English-Spanish Cognates in Picture Books: Toward a Vocabulary Curriculum for Latino ELLs

    ERIC Educational Resources Information Center

    Montelongo, José A.; Durán, Richard; Hernández, Anita C.

    2013-01-01

    English-Spanish cognates are words that are spelled similarly or identically and possess the same or nearly the same meanings in both languages. Many cognates are academic vocabulary words and are very common in content area textbooks. The primary purpose of this investigation was to obtain an estimate of the number of different cognates in…

  15. Show & Tell: A Video Column/Setting Clear Learning Purposes for ELLs

    ERIC Educational Resources Information Center

    Fisher, Doug; Frey, Nancy

    2016-01-01

    The language of school is demanding; much of the content is decontextualized and abstract, and it concerns matters that are far removed from the daily life. Students are expected to learn about rain forests and prime numbers, literary motifs, and historical events that occurred centuries ago. Consider the additional cognitive demands confronting…

  16. The Intersection of Inquiry-Based Science and Language: Preparing Teachers for ELL Classrooms

    ERIC Educational Resources Information Center

    Weinburgh, Molly; Silva, Cecilia; Smith, Kathy Horak; Groulx, Judy; Nettles, Jenesta

    2014-01-01

    As teacher educators, we are tasked with preparing prospective teachers to enter a field that has undergone significant changes in student population and policy since we were K-12 teachers. With the emphasis placed on connections, mathematics integration, and communication by the New Generation Science Standards (NGSS) (Achieve in Next generation…

  17. Impacting Attitudes of ELL Students: Integrated Learning Communities in Introductory Science Courses

    ERIC Educational Resources Information Center

    Fayon, Annia K.; Goff, Emily; Duranczyk, Irene M.

    2010-01-01

    In large introductory science courses at the postsecondary level, there is significant anecdotal evidence of traditionally underrepresented students disengaging from the lectures, resulting in withdrawals or failures. Because these science courses often fulfill graduation requirements and provide the students with broad introductions to basic…

  18. Using Formative Reading Assessments and Data Utilization to Improve ELL Spanish Speaking Students' Achievement Test Scores

    ERIC Educational Resources Information Center

    Hamilton, Maureen Dugan

    2013-01-01

    The demands and expectations placed on all schools in the United States to meet the needs of a growing and diverse population continue to raise the questions, what needs to be done in order for all students to achieve success, and how can this success be measured? This study, researched and reported in the form of a dissertation, was performed on…

  19. The Ability of Oral Fluency to Predict Reading Comprehension among ELL Children Learning to Read

    ERIC Educational Resources Information Center

    Millett, Joseph Ridge

    2011-01-01

    The current study analyzed existing data, collected under a previous U.S. Department of Education Reading First grant, to investigate the strength of the relationship between scores on the first- through third-grade Dynamic Indicators of Basic Early Literacy Skills-Oral Reading Fluency (DIBELS-ORF) test and scores on a reading comprehension test…

  20. Transiency in Urban Schools: Challenges and Opportunities in Educating ELLs with a Migrant Background

    ERIC Educational Resources Information Center

    Nevarez-La Torre, Aida A.

    2012-01-01

    Many urban classrooms are facing an influx of students who are transient, part of migrant families who decide to reside in cities and large urban centers looking for financial stability and better educational opportunities for their children. This represents a different challenge for English as a second language, bilingual, and mainstream teachers…

  1. Convergence rates for {{\\ell }}^{1}-regularization without injectivity-type assumptions

    NASA Astrophysics Data System (ADS)

    Flemming, Jens

    2016-09-01

    Existing convergence rate results for sparsity promoting regularization of Tikhonov-type rely on injectivity of the considered operator or at least on slightly weakened injectivity assumptions (finite basis injectivity or restricted isometry property). We extend such results to non-injective operators by formulating a suitable variational source condition, which then is characterized in the language of range conditions with respect to the range of the adjoint operator. As a special case we consider operator equations with uniquely determined 1-norm minimizing solutions. Based on the developed characterization of a variational source condition we also provide convergence rates for the case that solutions are not sparse.

  2. Lending Student Voice to Latino ELL Migrant Children's Perspectives on Learning

    ERIC Educational Resources Information Center

    Irizarry, Stephanie; Williams, Sherie

    2013-01-01

    Migrant workers in the United States have a well-documented history of struggle. This research explored the perspectives of a select group of middle school Latino migrant students in terms of their education in the United States. The research used qualitative and quantitative data gathered from a focus group session and a survey that explored the…

  3. Picturing Words: Using Photographs and Fiction to Enliven Writing for ELL Students

    ERIC Educational Resources Information Center

    Haines, Shana J.

    2015-01-01

    This article describes a teacher-research project in which a class of fifth-grade English language learners demonstrated that learning about photography and using it as inspiration for their creative writing authenticated their writing task, helped them bring their outside-school worlds inside school, increased their enthusiasm for writing, and…

  4. Picturing Words: Using Photographs and Fiction to Enliven Writing for ELL Students

    ERIC Educational Resources Information Center

    Haines, Shana J.

    2015-01-01

    This article describes a teacher-research project in which a class of fifth-grade English language learners demonstrated that learning about photography and using it as inspiration for their creative writing authenticated their writing task, helped them bring their outside-school worlds inside school, increased their enthusiasm for writing, and…

  5. Interdisciplinary Teaching in Elementary Schools: Educating English Language Learner (ELL) Students with Multidimensional Practices

    ERIC Educational Resources Information Center

    Rodriguez-Valls, Fernando

    2012-01-01

    School accountability has funnelled educational practices into a path where teaching practices are heavily centred in Language Arts instruction. Focusing learning almost exclusively in the aforesaid area develops a one-dimensional process that could hold back certain students from a well-balanced education. This article presents a model of…

  6. Young Families: How Are They Coping? = Les jeunes familles: comment se debrouillent-elles?

    ERIC Educational Resources Information Center

    Theilheimer, Ish, Ed.; Eisner, Kathy, Ed.

    1995-01-01

    This issue of the newsletter "Transition" focuses on young families and the problems they face. The newsletter contains book reviews, descriptions of upcoming events, and articles covering various aspects of young families. Articles are: (1) "Taking the Plunge" (Deidre Yukich), focusing on one woman's family planning decisions;…

  7. A University and Middle-School Partnership: Preservice Teachers' Attitudes toward ELL Students

    ERIC Educational Resources Information Center

    Walker-Dalhouse, Doris; Sanders, Vonnie; Dalhouse, A. Derick

    2009-01-01

    This article addresses the knowledge and attitudes of preservice teachers about refugee English Language Learners before and after engaging in a pen pal writing project. The results reflect positive changes in the preservice teachers' understanding of their attitudes toward refugee English Language Learners and in their understanding of the…

  8. The Common Core, English Learners, and Morphology 101: Unpacking LS.4 for ELLs

    ERIC Educational Resources Information Center

    Hickey, Pamela J.; Lewis, Tarie

    2013-01-01

    The Common Core Learning Standards set forth learning goals for all students, including English learners, but this document does not provide information on effective literacy instruction for English learners or unpack the specific resources and challenges that bilingual students bring to the classroom. Language Standard 4 addresses morphological…

  9. Analysis of the National Science Foundation's Discovery Research K-12 ELL Projects

    ERIC Educational Resources Information Center

    Caswell, Linda; Martinez, Alina; Lee, Okhee; Berns, Barbara Brauner; Rhodes, Hilary

    2016-01-01

    Background/Context: Educational and societal phenomena can converge to draw attention to a new focus, such as ELs and STEM, and then trigger new research interests. A funding program can play a critical role in shaping these new research interests by prioritizing specific research topics and designs or by requiring particular specializations of…

  10. Search for the Standard Model Higgs Boson in $H \\to WW \\to \\ell \

    SciTech Connect

    Sudo, Yuji

    2011-02-01

    We searched for Standard Model Higgs boson decaying into WW(*), where one of the W bosons decays leptonically and the other hadronically. We used 4.6 $fb^{-1}$ of data collected with the CDF detector in Tevatron Run II. We composed a likelihood discriminant using kinematic variables in order to maximize the signal/background separation. We set upper limits on Higgs boson production cross section for Higgs boson masses between 150 and 200 GeV/$c^2$. The results range from 5.69 ($m_H$ = 170 GeV/$c^2$) to 52.5 ($m_H$ = 150 GeV/$c^2$) times the Standard Model values at 95 % confidence level

  11. Making Learning Active with Interactive Whiteboards, Podcasts, and Digital Storytelling in ELL Classrooms

    ERIC Educational Resources Information Center

    Hur, Jung Won; Suh, Suhyun

    2012-01-01

    The purpose of this study was to examine effective ways to integrate an interactive whiteboard, podcast, and digital storytelling for language proficiency development in English language learners. Researchers integrated these three technologies into a 60-hour intensive summer English program and investigated their impacts on student vocabulary…

  12. "A Squirrel Came and Pushed Earth:" Popular Cultural and Scientific Ways of Thinking for ELLs

    ERIC Educational Resources Information Center

    Ciechanowski, Kathryn M.

    2009-01-01

    This article reports on a study of how third-grade bilingual students drew from everyday resources, particularly popular culture, in science classes and how the use of these resources shaped how they made sense of academic texts. Six months of data collection in an urban Midwestern school demonstrated that students--especially English-language…

  13. The Ability of Oral Fluency to Predict Reading Comprehension among ELL Children Learning to Read

    ERIC Educational Resources Information Center

    Millett, Joseph Ridge

    2011-01-01

    The current study analyzed existing data, collected under a previous U.S. Department of Education Reading First grant, to investigate the strength of the relationship between scores on the first- through third-grade Dynamic Indicators of Basic Early Literacy Skills-Oral Reading Fluency (DIBELS-ORF) test and scores on a reading comprehension test…

  14. Bridging the Gap: Essential Issues to Address in Recurring Writing Center Appointments with Chinese ELL Students

    ERIC Educational Resources Information Center

    Nan, Frances

    2012-01-01

    As the population of international--and particularly Chinese--students grows in US academic institutions, it is critical that writing center tutors be able to address these students' needs. However, whereas writing tutors at the author's institution are often taught to be indirect and focus on higher order concerns, such strategies are not always…

  15. Are ELL Students Underrepresented in Charter Schools? Demographic Trends in New York City, 2006-2008

    ERIC Educational Resources Information Center

    Buckley, Jack; Sattin-Bajaj, Carolyn

    2011-01-01

    Analysts of charter school reform have recently begun to investigate the enrollment patterns of special student populations, namely, low-income students, students classified as special education, and those with English language learner status. Using 3 recent years of data from the New York State School Report Cards and analyzing the charter…

  16. Analysis of the National Science Foundation's Discovery Research K-12 ELL Projects

    ERIC Educational Resources Information Center

    Caswell, Linda; Martinez, Alina; Lee, Okhee; Berns, Barbara Brauner; Rhodes, Hilary

    2016-01-01

    Background/Context: Educational and societal phenomena can converge to draw attention to a new focus, such as ELs and STEM, and then trigger new research interests. A funding program can play a critical role in shaping these new research interests by prioritizing specific research topics and designs or by requiring particular specializations of…

  17. Disrupting ELL Teacher Candidates' Identities: Indigenizing Teacher Education in One Study Abroad Program

    ERIC Educational Resources Information Center

    Kasun, G. Sue; Saavedra, Cinthya M.

    2016-01-01

    In this article, the researchers describe and theorize the challenges and promises of exposing preservice teachers' identities to indigenous, critical second language teaching experiences in one study abroad program in Mexico. The eight teacher candidates who participated in this 4-week program were predominantly white, like the majority of…

  18. Supporting Early Oral Language Skills for Preschool ELL in an EFL Context, Mauritius: Possibilities and Challenges

    ERIC Educational Resources Information Center

    Auleear Owodally, Ambarin Mooznah

    2015-01-01

    In Mauritius, Kreol is the home language of the majority of school children, while English is the main language of literacy and the main written medium of instruction as from the first year of primary schooling. This has had a backwash effect on the preschool sector, where English is introduced. A cross-sectional study of local preschools revealed…

  19. Perceptions and Use of Language Learning Strategies among ESL Teachers and ELLs

    ERIC Educational Resources Information Center

    Ardasheva, Yuliya; Tretter, Thomas R.

    2012-01-01

    This survey study explored perceptions and use of language learning strategies among English as a second language teachers and English-learning students (Grades 3-8, 10, and 11). The sample comprised 1,057 students (651 elementary, 275 middle, and 131 high school) and 54 teachers (31 elementary, 11 middle, and 12 high school) from 38 schools…

  20. Supporting Early Oral Language Skills for Preschool ELL in an EFL Context, Mauritius: Possibilities and Challenges

    ERIC Educational Resources Information Center

    Auleear Owodally, Ambarin Mooznah

    2015-01-01

    In Mauritius, Kreol is the home language of the majority of school children, while English is the main language of literacy and the main written medium of instruction as from the first year of primary schooling. This has had a backwash effect on the preschool sector, where English is introduced. A cross-sectional study of local preschools revealed…

  1. Compare, Contrast, Comprehend: Using Compare-Contrast Text Structures with ELLs in K-3 Classrooms

    ERIC Educational Resources Information Center

    Dreher, Mariam Jean; Gray, Jennifer Letcher

    2009-01-01

    In this article, we describe how to help primary-grade English language learners use compare-contrast text structures. Specifically, we explain (a) how to teach students to identify the compare-contrast text structure, and to use this structure to support their comprehension, (b) how to use compare-contrast texts to activate and extend students'…

  2. Defining Opportunity to Learn for English Language Learners: Linguistic and Cultural Dimensions of ELLs' Instructional Contexts

    ERIC Educational Resources Information Center

    Aguirre-Munoz, Zenaida; Amabisca, Anastasia A.

    2010-01-01

    Past research demonstrates the critical role of the context of learning in the achievement of students. This body of work justifies research and development of more contextualized opportunity to learn (OTL) models. We expound on an OTL framework that represents contextual features that can enrich or constrain opportunities for English language…

  3. Interrupting the Professional Schism That Allows Less Successful Educational Practices with ELLs to Persist

    ERIC Educational Resources Information Center

    Hamann, Edmund T.; Reeves, Jenelle

    2013-01-01

    Different worldviews, different histories of induction into teaching, presumed differences in responsibilities, and different emphases in preservice and in-service preparation have all long contributed to enduring schisms that keep general education (or mainstream) teachers and English language support faculty from coordinating and finding common…

  4. Show & Tell: A Video Column/Setting Clear Learning Purposes for ELLs

    ERIC Educational Resources Information Center

    Fisher, Doug; Frey, Nancy

    2016-01-01

    The language of school is demanding; much of the content is decontextualized and abstract, and it concerns matters that are far removed from the daily life. Students are expected to learn about rain forests and prime numbers, literary motifs, and historical events that occurred centuries ago. Consider the additional cognitive demands confronting…

  5. Educating Iowa's English Language Learners (ELLs): A Handbook for Administrators and Teachers

    ERIC Educational Resources Information Center

    Iowa Department of Education, 2004

    2004-01-01

    This handbook for Iowa school districts was first published many years ago. Since that time, several significant sociopolitical and educational changes have occurred. For example, there has been an increase in the number of languages and cultures represented both in Iowa and in the political arenas of the nation. Immigrants and refugees from…

  6. Commission on Teacher Credentialing Approves 8 ELL-Related Credential Options

    ERIC Educational Resources Information Center

    Frost, Jeff; Cadiero-Kaplan, Karen; Kuhlman, Natalie

    2011-01-01

    On September 30, 2010, the California Commission on Teacher Credentialing (CTC) voted unanimously to approve a set of eight recommendations for authorization to teach English language learners. These recommendations approved by the CTC had been in development for almost two years and they focused on several issues, including: (1) a specific focus…

  7. A general system of n levels interacting with {\\ell } electromagnetic modes

    NASA Astrophysics Data System (ADS)

    Cordero, S.; Nahmad-Achar, E.; Castaños, O.; López-Peña, R.

    2017-04-01

    The phase diagram corresponding to the ground state of a completely general system of atoms interacting dipolarly with a radiation field, in a cavity, is established. The system is most general in that we consider any finite number N a of atoms, any number n of atomic levels, any number ℓ of field modes, and we do not restrict a radiation mode to interact with a sole pair of atomic levels. The study is carried out through a variational procedure. The test function is constructed from the tensorial product of coherent states associated to the matter and field components. In the parameter space of the dipolar field-matter couplings, we show that the ground state of the system suffers quantum phase transitions described by a phase diagram which divides itself into monochromatic regions. Linear combinations of coherent states are considered to restore the symmetries of the Hamiltonian and, in the thermodynamic limit, we show that the corresponding symmetry-adapted energy surface approaches that of the separable coherent states.

  8. Success with ELLs: Writing in the ESL Classroom--Confessions of a Guilty Teacher

    ERIC Educational Resources Information Center

    DelliCarpini, Margo, Ed.; Adams, Susan R.

    2009-01-01

    When the author first started teaching English as a Second Language (ESL) students, she was incredibly naive about the second language acquisition process. One of the first moves she made was to look at the Teachers of English to Speakers of Other Languages (TESOL) goals, and she began to think about the purposes and situations in which her…

  9. Early RCT Findings for ELL Elementary Student Learning Outcomes after a Two-Year Pedagogical Intervention

    ERIC Educational Resources Information Center

    Portes, Pedro R.; Canche, Manuel S. Gonzalez; Stollberg, Robert

    2016-01-01

    The Instructional Conversation (IC) is a complete classroom pedagogy that focuses on teaching through small-group dialogue with students allowing responsive instruction for each student. The IC is anchored by cognitive-developmental theory and by four decades of multi-method quasi-experimental studies. This study describes the first research of an…

  10. Bilingual and ESL Pre-Service Teachers Learn about Effective Instruction for ELLs through Meaningful Collaboration

    ERIC Educational Resources Information Center

    Rodríguez, Alma D.

    2013-01-01

    This article presents the results of a study conducted to identify the perceptions of bilingual and ESL pre-service teachers regarding the integration of a collaborative service learning project in a key course of their teacher preparation program. Pre-, process, and final reflective essays were written by participants as they engaged in the…

  11. Disrupting ELL Teacher Candidates' Identities: Indigenizing Teacher Education in One Study Abroad Program

    ERIC Educational Resources Information Center

    Kasun, G. Sue; Saavedra, Cinthya M.

    2016-01-01

    In this article, the researchers describe and theorize the challenges and promises of exposing preservice teachers' identities to indigenous, critical second language teaching experiences in one study abroad program in Mexico. The eight teacher candidates who participated in this 4-week program were predominantly white, like the majority of…

  12. Success with ELLs: A Decade of ESOL Experience in about a Thousand Words

    ERIC Educational Resources Information Center

    Dailey, Alex

    2009-01-01

    In this article, the author shares her experience and the lessons learned in teaching English to Speakers of Other Languages (ESOL) for a decade. After thousands of lessons, uncountable revisions to those lessons, numerous hours of professional development, access to dozens of talented colleagues, and an abundance of thoughts and insights from…

  13. Correlations Between the Ligand Electrochemical Parameter, EL(L) and the Hammett Substituent Parameter Sigma

    DTIC Science & Technology

    1993-01-25

    AD-A260 299 OFFICE OF NAVAL RESEARCH Contract N00014-91-J-1910 R & T Code 4131025 Technical Report #51 Correlations Between the Ligand ...COVERED January 25, 1993 Technical - June 1991 to July 1992 4 TITLE AND SUBTITLE S. FUNDING NUMBERS Correlations Between the Ligand Electrochemical...Ontario, Canada, M3J 1P3. Correlations Between the Ligand Electrochemical Parameter. ET (D and the Hammett Substituent Param~eter. a. By Hitoshi

  14. Integrating Career Skills into the English Class for ELLs: Promise and Peril

    ERIC Educational Resources Information Center

    DelliCarpini, Margo, Ed.

    2010-01-01

    Last year the author had the pleasure of working with a team of dedicated teachers in an alternative high school setting on the implementation of a grant she had written for their program. The grant was the Carl D. Perkins Career and Technical Education (CTE) Act grant, federally distributed to the states. As the grant writer and teacher…

  15. Pathways of Knowing: Integrating Citizen Science and Critical Thinking in the Adult ELL Classroom

    ERIC Educational Resources Information Center

    Basham, Melody

    2012-01-01

    This action research study examines what common perceptions and constructs currently exist in educating adult immigrants in Arizona and considers how might the integration of citizen science with the current English curriculum promote higher order thinking and educational equity in this population. A citizen science project called the Mastodon…

  16. A Short Study of Effective Science Instruction for ELL Junior Students

    ERIC Educational Resources Information Center

    Broer, Kathleen

    2013-01-01

    This study was the result of classroom action-based research class in a mainstreamed class of 26; 6 students were special ed and 2 students were English Language Learners. Because it was a split grade, I had double the amount of science topics from which to choose. This study examined quality experiments for junior students and optimal strategies…

  17. Harnessing the Barriers That Impact on Students' English Language Learning (ELL)

    ERIC Educational Resources Information Center

    Liton, Hussain Ahmed

    2016-01-01

    This study strives to single out the barriers and obstacles in terms of academic, course curriculum system and socio-cultural issues that impact on students' learning English language adversely in the prep year level at Jazan University, Saudi Arabia. This paper especially focuses on the factors affecting EFL ("English as a Foreign…

  18. Reading in English and in Chinese: Case Study of Retrospective Miscue Analysis with Two Adult ELLS

    ERIC Educational Resources Information Center

    Wang, Yang; Gilles, Carol J.

    2017-01-01

    Retrospective Miscue Analysis (RMA) has proved to be a useful instructional tool in language arts classrooms and for English learners from various cultures. However, it has not been used with native Mandarin-speaking English learners. This qualitative case study explored the reading process of two adult Mandarin-speaking ELs through RMA. They read…

  19. Search for the Standard Model Higgs Boson in the $WH \\to \\ell \

    SciTech Connect

    Nagai, Yoshikazu

    2010-02-01

    We have searched for the Standard Model Higgs boson in the WH → lvbb channel in 1.96 TeV pp collisions at CDF. This search is based on the data collected by March 2009, corresponding to an integrated luminosity of 4.3 fb-1. The W H channel is one of the most promising channels for the Higgs boson search at Tevatron in the low Higgs boson mass region.

  20. ELL Excel: Using Peer Mentoring to Help English Language Learners Excel in American Classrooms

    ERIC Educational Resources Information Center

    Turney, Kristilynn M.

    2013-01-01

    This action research study describes implementation of a peer mentorship program to improve the performance of English language learners at the research site, a suburban high school in Ohio. With the rapidly increasing number of English language learners at the research site as well as schools across the country and the expectations of No Child…