4,443 research outputs found

    A case study of Spanish language use in a Texas border colonia

    Get PDF
    This case study reveals a Spanish language marginalization in a South Texas community of mostly Latinos, who are the fastest growing group in the U.S. (Colombi & Roca, 2003); furthermore, approximately 77% of English language learners (ELLs) have Spanish as their heritage language (Hopstock & Stephenson, 2003). Nevertheless, ELLs do not receive much academic literacy support in their first language in many schools (Zehler et al., 2003). Thus, out-of- school social practices play an important role on maintaining a native language (e.g., Burrows-Goodwill, 2009; Reyes, 2006). However, researchers have not explored this phenomenon in Texas border colonias, or unincorporated areas where city services are non-existent (U.S. Department of Housing and Urban Development, 2005) and where almost half of residents live below the poverty line (U.S. Census Bureau, 2000). This case study examined Spanish language use in the Texas border colonia of El Palmar (pseudonym). I utilized U.S. Census data, linguistic landscape analysis of the neighborhood, participant observations, language use surveys, language logs, and viii interviews to determine the extent that bilingualism and biliteracy have developed in El Palmar and the factors leading to language maintenance or shift in this colonia. I used the framework of New Literacy Studies traditions (Barton, 2007; Barton & Hamilton, 1998; Gee, 2008; Heath, 1983; Street, 2001) to identify literacy practices involving adults and children in El Palmar, as well as the funds of knowledge concept (González, Moll, & Amanti, 2005; Smith, 2002) to understand and acknowledge the cultural and literacy resources recent immigrants use in new language environments. I also incorporated Fishman‟s (2001) ideas of language shift to analyze the Spanish language maintenance or loss in the colonia. Biliteracy of the community was analyzed by applying the linguistic landscape concept developed by Landry and Bourhis (1997). The analysis of multiple data sources revealed that Spanish continues to be the most spoken language, but bilingualism has grown in El Palmar because more residents, particularly youth, have learned English. On the other hand, biliteracy has not developed. Even though El Palmar youth are fluent speakers of English and Spanish, they have not developed literacy in Spanish. The factors that help the maintenance or loss of Spanish in the colonia were also identified. This study also made a language compartmentalization evident in El Palmar, where Spanish is seen as the language to communicate and express feelings, and English as the language of power to succeed. The role of children and adults as language brokers (e.g., Orellana, 2009) in between these two language worlds was also analyzed. This study demonstrates the need for an awareness among El Palmar residents to value Spanish, not only as a sentimental language (Kelman, 1971), but as a language that will help them to succeed in high-power spheres, such as education and business (Fishman, 2001). Another implication is for a better communication among parents, schools, and community members to affirm colonia residents‟ linguistic resources and biliteracy

    Commercial hybrid yield of green asparagus (Asparagus officinalis L. var. altilis) processed in two spear-lengths, during the stable productivity stage, in the Province of Buenos Aires, Argentina

    Get PDF
    The perennial crop asparagus reaches maximum yield in its fifth season, exhibits marked genotype-environment interaction and requires productivity evaluation of its hybrids. To determine the behavior of green asparagus genotypes, a randomized complete block design trial (begun 16/11/11, density 23810 pl ha-1, area 1690 m2) was carried out in Azul (36°48’ S, lat. 59°51’ W, long.) within the framework of the ISHS’s Fourth International Asparagus Cultivar Trial, in which the following hybrids were harvested between 5/8/17 and 26/10/17 and evaluated for agronomic performance: ‘Italo’, ‘Vittorio’, ‘Eros’, ‘Ercole’, ‘Giove’, ‘Franco’, ‘Chino’, ‘Early-California’, ‘UC-157’, ‘Patrón’, ‘NJ-1189’, ‘NJ-1123’ and ‘NJ-1192’. Their response to pre-harvest diammonium phosphate (DAP) fertilisation was also evaluated (100 kg ha-1 vs. control). Harvested spears were cut, conditioned to two lengths (long 22 cm, short 17 cm), weighed, counted, washed and calibrated. The following characters were evaluated: total fresh commercial productivity (TFP) and that of long and short commercial spears (CFP-L and CFP-S); total commercial spear number (TSN) and that of long and short commercial spears (CSN-L and CSN-S); mean spear weight (MSW); calibre distribution (CD): (J: Jumbo; XL: Extra-Large; L: Large; M: Medium; S: Small and A: Asparagine). ANOVA-LSD test P≥0.05 was employed. DAP fertilisation raised yield by 3-10%, though not significantly. The following mean values were obtained: TFP: 8678.46 kg ha-1; TSN: 440298 spears ha-1; MSW: 20 g; CFP-L: 3109; CFP-S: 1945 kg ha-1; CSN-L: 165857 and CSN-S: 130467 spears ha-1. The following hybrids performed well: for CFP-L: ‘Vittorio’: 4379(a); ‘Franco’: 4033(ab); ‘NJ-1123’: 3849(abc); for CFP-C: ‘NJ-1123’: 2726(a); ‘Ercole’: 2483(ab); ‘Vittorio’: 2325(abc); for CSN-L: ‘NJ-1123’: 225260(a); ‘Franco’: 214161(a); ‘Vittorio’: 204358(ab); ‘Giove’: 200229(abc); for CSN-C: ‘NJ-1123’: 2725(a); ‘Ercole’: 2482(ab); ‘Vittorio’: 2325(abc); for CD: J: ‘UC-157’: 12767(a); ‘Eros’: 9882(ab); ‘NJ-1123’: 9005(abc); for XL: ‘NJ-1123’: 41124(a); ‘Franco’: 38958(ab); ‘NJ-1192’: 37644(ab); for L: ‘Ercole’: 85083(a); ‘NJ-1123’: 84700(a); ‘Franco’: 83872(a); ‘Italo’: 83095(a); for M: ‘NJ-1123’: 118198(a); ‘Franco’: 116369(a); ‘Vittorio’: 109645(ab); ‘Ercole’: 105984(ab); for S: ‘Giove’: 102748(a); ‘NJ-1123’: 80530(ab). In summary, ‘NJ-1123’ would be chosen for spear number productivity and ‘Vittorio’ and ‘Franco’ for yield.Fil: Castagnino, Ana Maria. Cresca-faa-unicen; Argentina. Asaho; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Agronomía. Centro Regional de Estudios Sistémico de Cadenas Agroalimentarias; ArgentinaFil: Diaz, K. E.. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Agronomía. Centro Regional de Estudios Sistémico de Cadenas Agroalimentarias; ArgentinaFil: Rosini, M. B.. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Agronomía. Centro Regional de Estudios Sistémico de Cadenas Agroalimentarias; ArgentinaFil: Guisolis, Andrea Paola. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Agronomía. Centro Regional de Estudios Sistémico de Cadenas Agroalimentarias; ArgentinaFil: Dussi, M. C.. Universidad Nacional del Comahue; ArgentinaFil: Rogers, William John. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Agronomía. Centro Regional de Estudios Sistémico de Cadenas Agroalimentarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Biodiversidad y Biotecnología; Argentin

    Declining liver graft quality threatens the future of liver transplantation in the United States

    Get PDF
    National liver transplantation (LT) volume has declined since 2006, in part because of worsening donor organ quality. Trends that degrade organ quality are expected to continue over the next 2 decades. We used the United Network for Organ Sharing (UNOS) database to inform a 20-year discrete event simulation estimating LT volume from 2010 to 2030. Data to inform the model were obtained from deceased organ donors between 2000 and 2009. If donor liver utilization practices remain constant, utilization will fall from 78% to 44% by 2030, resulting in 2230 fewer LTs. If transplant centers increase their risk tolerance for marginal grafts, utilization would decrease to 48%. The institution of "opt-out" organ donation policies to increase the donor pool would still result in 1380 to 1866 fewer transplants. Ex vivo perfusion techniques that increase the use of marginal donor livers may stabilize LT volume. Otherwise, the number of LTs in the United States will decrease substantially over the next 15 years. In conclusion, the transplant community will need to accept inferior grafts and potentially worse posttransplant outcomes and/or develop new strategies for increasing organ donation and utilization in order to maintain the number of LTs at the current level

    Productivity of male green asparagus genotypes (Asparagus officinalis var. altilis L.) in their seventh year

    Get PDF
    El espárrago es una hortaliza no tradicional perenne, la que puede ingresar a los sistemas productivos como una alternativa de diversificación productiva, siendo necesario evaluar el comportamiento de distintos genotipos para cada zona productiva en particular. Con el objetivo de determinar la productividad de genotipos masculinos italianos se efectuó un ensayo (22/11/2006) mediante plantines (P) grandes (PG) y chicos (PCH). Se evaluó en el séptimo año de cosecha: productividad fresca total (PFT) y comercial (PFC), turiones totales (NTT) y comerciales (NTC), calibres (J: Jumbo; XL: Extra-Large; L: Large; M: Medium; S: Small y A: Asparagina), defectos (DE: espigados; P: daño plagas; y OD: otros defectos). Se efectuaron 32 cosechas en el período del 01/09/2014-14/11/2014. Se realizó análisis de la varianza ANOVA-LSD test (P≥0.05). No se encontraron diferencias significativas en P.Como resultado de las 32 cosechas realizadas se logró una productividad promedio de 14,5 t.ha-1 y comercial de primera calidad de 5,4 t.ha-1. En de turiones se lograron 553.241 totales y 252.420 comerciales de primera calidad, siendo el peso promedio por turión de 21 g. Respecto del tamaño de plantines, no se encontraron diferencias significativas. Los genotipos italianos superaron al testigo americano destacándose en PFT Eros y en PFC: Ercole, Eros, Italo y H-668. En turiones producidos se lograron diferencias significativas entre híbridos: en NTT se destacaron Zeno, Eros, Ercole y H-668; mientras que en NTC, Ercole. En distribución de calibres se destacaron, en J: Italo, UC-157, H-668, Zeno y Eros; en XL: Eros, Italo, Zeno y H-668; en L: Eros, Italo, Ercole y H 668, UC-157 y Zeno. En M: Ercole; Eros y H-668 y UC-157. En calibres S: UC-157 y Ercole, mientras en A: UC-157 y Ercole. Los híbridos masculinos, productivamente representan una alternativa valiosa para las características productivas de la Provincia de Buenos Aires.Asparagus is a non-traditional perennial vegetable crop for which evaluation of the performance of different genotypes is required. With the aim of determining the productivity of a set of all-male genotypes from Italy, a trial was planted on 22/11/06 using large (PG) and small (PCH) seedlings. The following characters were evaluated: total (PFT) and commercial (PFC) fresh production, total (NTT) and commercial (NTC) spear number, calibre distribution (J: Jumbo; XL: Extra-Large; L: Large; M: Medium; S: Small and A: Asparagina), defects (DE: opened bracts; P: plague damage; and OD: other defects). Thirty-two harvests were carried out between 1/9/14 and 14/11/14. Data were analysed by ANOVA-LSD (P≥0.05). No significant differences were found between the two seedling sizes. From the thirty-two harvests, a mean productivity of 14.5t.ha-1 was obtained, with a commercial prime quality productivity of 5.4 t.ha-1 . A total of 553,241 spears were obtained, of which 252,420 were of commercial prime quality, with an average weight of 21 g per spear. Regarding seedling size, no significant differences were found. The Italian genotypes performed better than the control genotype from the USA, with Eros outstanding for PFT, and Ercole, Eros, Italo and H-668 for PFC. For spears produced, significant differences were observed between hybrids: for NTT, Zeno, Eros, Ercole and H-668 stood out, while for NTC, Ercole. Regarding calibre distribution, Italo, UC-157, H-668, Zeno and Eros stood out for J; Eros, Italo, Zeno and H-668 for XL; Eros, Italo, Ercole and H-668, UC-157 and Zeno for L; Ercole, Eros and H-668, and UC-157 for M; UC157 and Ercole for S; and UC-157 and Ercole for A. In conclusion, all male hybrids represent a valuable production alternative.Fil: Romero, F.. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Agronomía. Centro Regional de Estudios Sistémico de Cadenas Agroalimentarias; ArgentinaFil: Castagnino, Ana Maria. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Agronomía. Centro Regional de Estudios Sistémico de Cadenas Agroalimentarias; Argentina. Pontificia Universidad Católica Argentina; ArgentinaFil: Diaz, K. E.. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Agronomía. Centro Regional de Estudios Sistémico de Cadenas Agroalimentarias; ArgentinaFil: Guisolis, Andrea Paola. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Agronomía. Centro Regional de Estudios Sistémico de Cadenas Agroalimentarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Rosini, M. B.. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Agronomía. Centro Regional de Estudios Sistémico de Cadenas Agroalimentarias; ArgentinaFil: Rogers, William John. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Cientifico Tecnolológico Mar del Plata. Instituto de Investigaciones en Biodiversidad y Biotecnología. Laboratorio de Biología Funcional y Biotecnología; Argentin

    A gravitational wave observatory operating beyond the quantum shot-noise limit: Squeezed light in application

    Get PDF
    Around the globe several observatories are seeking the first direct detection of gravitational waves (GWs). These waves are predicted by Einstein\u27s general theory of relativity(1) and are generated, for example, by black-hole binary systems(2). Present GW detectors are Michelson-type kilometre-scale laser interferometers measuring the distance changes between mirrors suspended in vacuum. The sensitivity of these detectors at frequencies above several hundred hertz is limited by the vacuum (zero-point) fluctuations of the electromagnetic field. A quantum technology-the injection of squeezed light(3)-offers a solution to this problem. Here we demonstrate the squeezed-light enhancement of GEO 600, which will be the GW observatory operated by the LIGO Scientific Collaboration in its search for GWs for the next 3-4 years. GEO 600 now operates with its best ever sensitivity, which proves the usefulness of quantum entanglement and the qualification of squeezed light as a key technology for future GW astronomy(4)

    Primary resistance of HIV to antiretrovirals among individuals recently diagnosed at voluntary counselling and testing centres in the metropolitan region of Recife, Pernambuco

    Get PDF
    Determining the prevalence and type of antiretroviral (ARV) resistance among ARV-naïve individuals is important to assess the potential responses of these individuals to first-line regimens. The prevalence of primary resistance and the occurrence of recent infections among individuals with human immunodeficiency virus (HIV)/acquired immune deficiency syndrome (AIDS) were identified among recently diagnosed patients at five sexually transmitted disease/AIDS testing and counselling centres in the metropolitan region of Recife (RMR), Pernambuco, Brazil, between 2007-2009. One-hundred and eight samples were analysed using the Calypte® BED assay. Males predominated (56%), as did patients aged 31-50 years. Twenty-three percent presented evidence of a recent HIV infection. The median CD4+ T lymphocyte count was 408 cells/mm³ and the median viral load was 3.683 copies/mL. The prevalence of primary resistance was 4.6% (confidence interval 95% = 1-8.2%) based on criteria that excluded common polymorphisms in accordance with the surveillance drug resistance mutation criteria. The prevalence of resistance to non-nucleoside reverse transcriptase, nucleoside/nucleotide reverse transcriptase and protease inhibitors were 3.8%, 1.5% and 0.8%, respectively. Fifty-seven percent of strains were from clade B, 37.7% were clade F and 3.1% were clade C; there were no statistically significant differences with respect to resistance between clades. Recent infection tended to be more common in men (p = 0.06) and in municipalities in the south of the RMR (Jaboatão dos Guararapes and Cabo de Santo Agostinho) (p = 0.046). The high prevalence of recent infection and the high prevalence of non-B strains in this poor Brazilian region merit further attention.Laboratório Central de Saúde Pública de Pernambuco Setor de VirologiaUniversidade Federal de Pernambuco Programa de Pós-Graduação em Medicina TropicalFiocruz Centro de Pesquisa Aggeu MagalhãesCentro de Testagem e Aconselhamento Herbert de SouzaUniversidade Federal de São Paulo (UNIFESP) Laboratório de RetrovirologiaUNIFESP, Laboratório de RetrovirologiaSciEL

    Chatter that Matters: Word-of-Mouth Marketing of Selected Micro Businesses and Small and Medium Enterprises in Malolos City, Bulacan

    Get PDF
    The study quantified the usage of and range of word-of-mouth (WOM) marketing, and analyzed the present state and satisfaction with WOM marketing tactics of selected micro businesses, small and medium enterprises in Malolos City, Bulacan. Purposive and convenience sampling were employed on marketers and owners who were available and who were willing to participate in the study using structured interview questions. 125 companies situated only in Malolos City proper and proximate places were selected

    Planning for Sustainability in Small Municipalities: The Influence of Interest Groups, Growth Patterns, and Institutional Characteristics

    Get PDF
    How and why small municipalities promote sustainability through planning efforts is poorly understood. We analyzed ordinances in 451 Maine municipalities and tested theories of policy adoption using regression analysis.We found that smaller communities do adopt programs that contribute to sustainability relevant to their scale and context. In line with the political market theory, we found that municipalities with strong environmental interests, higher growth, and more formal governments were more likely to adopt these policies. Consideration of context and capacity in planning for sustainability will help planners better identify and benefit from collaboration, training, and outreach opportunities
    • …
    corecore