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Search Results: 1 - 10 of 8884 matches for " Carolina; Hanson "
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A survey of homopteran species (Auchenorrhyncha) from coffee shrubs and poró and laurel trees in shaded coffee plantations, in Turrialba, Costa Rica
Rojas,Liliana; Godoy,Carolina; Hanson,Paul; Hilje,Luko;
Revista de Biología Tropical , 2001,
Abstract: asurvey of homopteran species (auchenorryncha) was conducted in coffee plantations with no shade (c), and in those with shade of either poró (erythrina poeppigiana) (cp) or poró plus laurel (cordia alliodora) (cpl), in turrialba, costa rica. a total of 130 species in ten families were collected, dominated by cicadellidae (82 species). species richness was highest in the cp system (88), followed by cpl (74) and c systems (60). five most common species for all systems were fusigonalia lativittata, hebralebra nicaraguensis, neocoelidia sp., oliarus sp. and clastoptera sp. diversification of the coffee agroecosystem favors some species while limiting others, and have no effect on the majority of species. thus, only f. lativittata, neocoelidia sp. and scaphytopius ca. latidens were well represented in all systems, but were more abundant in coffee shrubs. additionally, the following were the dominant species in each system: graphocephala sp. 1 (c), f. lativittata (cp) and h. nicaraguensis (cpl). four species abundant on laurel trees, including h. nicaraguensis, appeared almost exclusively on these tree species. species similarity was highest on the cp and cpl systems (51 % of the species in common), followed by the c and cp (39 %) and the c and cpl systems (38 %). these findings show that even disturbed systems can harbor many insect species, so that they deserve attention from conservation advocatesand biologists
A survey of homopteran species (Auchenorrhyncha) from coffee shrubs and poró and laurel trees in shaded coffee plantations, in Turrialba, Costa Rica
Liliana Rojas,Carolina Godoy,Paul Hanson,Luko Hilje
Revista de Biología Tropical , 2001,
Abstract: Asurvey of homopteran species (Auchenorryncha) was conducted in coffee plantations with no shade (C), and in those with shade of either poró (Erythrina poeppigiana) (CP) or poró plus laurel (Cordia alliodora) (CPL), in Turrialba, Costa Rica. A total of 130 species in ten families were collected, dominated by Cicadellidae (82 species). Species richness was highest in the CP system (88), followed by CPL (74) and C systems (60). Five most common species for all systems were Fusigonalia lativittata, Hebralebra nicaraguensis, Neocoelidia sp., Oliarus sp. and Clastoptera sp. Diversification of the coffee agroecosystem favors some species while limiting others, and have no effect on the majority of species. Thus, only F. lativittata, Neocoelidia sp. and Scaphytopius ca. latidens were well represented in all systems, but were more abundant in coffee shrubs. Additionally, the following were the dominant species in each system: Graphocephala sp. 1 (C), F. lativittata (CP) and H. nicaraguensis (CPL). Four species abundant on laurel trees, including H. nicaraguensis, appeared almost exclusively on these tree species. Species similarity was highest on the CP and CPL systems (51 % of the species in common), followed by the C and CP (39 %) and the C and CPL systems (38 %). These findings show that even disturbed systems can harbor many insect species, so that they deserve attention from conservation advocatesand biologists En Turrialba, Costa Rica, se efectuó un inventario de especies de chicharritas (Homoptera: Auchenorryncha) en plantaciones de café sin sombra (C), así como en café asociado con árboles de poró (Erythrina poeppigiana) (CP) o de poró y laurel (Cordia alliodora) (CPL). Se recolectaron 131 especies, pertenecientes a diez familias, entre las cuales predominó Cicadellidae (82 especies). La riqueza de especies fue mayor para el sistema CP (88 especies), seguido por CPL y C, con 74 y 60 especies, respectivamente. Las cinco especies más comunes para los tres sistemas juntos fueron Fusigonalia lativittata, Hebralebra nicaraguensis, Neocoelidia sp., Oliarus sp. y Clastoptera sp. La diversificación del agroecosistema cafetalero parece favorecer a algunas especies y limitar a otras, pero no influye en la mayoría de ellas. Así, solamente F. lativittata, Neocoelidia sp. y Scaphytopius ca. latidens estuvieron bien representadas en los tres sistemas, aunque fueron más abundantes en los arbustos de café. Asimismo, las siguientes especies particulares fueron dominantes para cada sistema: Graphocephala sp. 1 (C), F. lativittata (CP) y H. nicaraguensis (CPL). Cuatro esp
Learning about Vegetarian Diets in School: Curricular Representations of Food and Nutrients in Elementary Health Education  [PDF]
Clara Hanson
Advances in Applied Sociology (AASoci) , 2012, DOI: 10.4236/aasoci.2012.21010
Abstract: This paper examines the way non-meat and plant based diets are discussed in four elementary curricula. The author used an open coding technique of grounded theory to understand the way food, nutrition and vegetarianism was discussed. The curricula relied heavily upon the USDA Food Pyramid and a related concept of “balance” for nutritional information. The curricula also discussed nutrition in terms of food and food groups, rather than in terms of nutrients. Although some of the curricula included information about the benefits of vegetarian diets, the high level of use of the Food Pyramid often overwhelmed the low level of information about vegetarianism.
Ian David Gauld (1947 - 2009) Su legado a la biodiversidad entomológica de Costa Rica y el mundo
Paul Hanson Snortum,James Coronado Rivera,Jesús Ugalde Gómez,Carolina Godoy
Revista de Biología Tropical , 2009,
Abstract:
Trends in U.S. Voting Attitudes with a Consideration of Variation by Gender and Race/Ethnicity  [PDF]
Sandra L. Hanson
Open Journal of Political Science (OJPS) , 2016, DOI: 10.4236/ojps.2016.64038
Abstract: Low turnout rates and discussions of disaffected voters are receiving considerable attention as we approach the 2016 U.S. presidential elections. Do trends in American’s attitudes about voting and correlates of these attitudes (political involvement, efficacy, and social connectedness) confirm the pessimistic assessments and do voters across gender and race/ethnic groups think similarly? Data from the American National Election Studies (ANES) provide some reason for optimism. Trends over the past few presidential election periods show a majority of Americans intend to vote and this majority is increasing. Trends show increases or stability on numerous correlates of voting attitudes including political involvement and social connectedness. Trends in voting attitudes by gender and race/ethnicity show considerable variation. Women and race/ethnic minorities (especially African Americans) are an important element of the positive trends shown here. Findings on external efficacy are an exception to the generally optimistic trends with data showing a majority of respondents don’t believe public officials care what people like the respondent think. However, trends do not show an increase in negative attitudes about public officials. Implications of the findings are considered.
Fifty years of entomological publications in the Revista de Biología Tropical
Hanson,Paul;
Revista de Biología Tropical , 2002,
Abstract: over its fifty year history nearly twenty percent of the papers published in the revista de biología tropical have been about inseets and arachnids. in the 1950's papers on arthropods of medical importance were dominant, in the 1960's there was a poliferation of papers on bees, and in more recent years the subjects have become incresingly diverse. in terms of nationality of contributing authors, the journal appears to have become increasingly international in later years.
Toxicants and physicochemical characteristics of the seeds of African black pear (Dacryodes edulis).
I Hanson
African Journal of Food, Agriculture, Nutrition and Development , 2009,
Abstract: This experiment investigated the antinutrients content and functional properties of the seeds of African black pear (Dacryodes edulis). The study derived its importance from the environmental problem posed by the seeds of this highly cherished fruit. The aim of the project was to determine through empirical means the possible recycling potential that might be inherent in the seeds of the African black pear. Three seed varieties of the same sample categorized as Small (S), Medium (M) and Large (L) were used for this study. Standard experimental protocols were employed in the estimation of all indices. Data obtained indicate that the seed samples contained phytic acid: 12.13 + 1.14; 12.37 + 1.82 and 13.37 + 0.65g/100g sample on dry matter basis (DMB), respectively for Small, Medium and Large. Trypsin inhibitory activities (TIA) were determined as 546.67 + 30.55; 520.00 + 20.00; and 473.33 + 23.10g/100g sample on DMB in the same order, respectively. High amounts of oxalate 0.24 + 0.02 g-1100g for Small; 0.35 + 0.03 g-1100g for Medium and 0.37 + 0.03 g-1100g for Large while tannins were also found to be (5.07 + 0.14; 5.16 + 0.08; 5.02 + 0.16)g- 1100g for Small; Medium; and Large, respectively in the seeds. Water and oil absorption capacity as well as foam capacity and bulk density for all the samples did not differ significantly (P>0.05). The Medium seed flour, however, showed significantly (P<0.05) higher values in emulsion activity (40.82 + 1.52)% and foam stability (6.20 + 0.33)% as compared to foam stability of the Large seed (5.80 + 0.08)% variety. It may, therefore, be concluded from the strength of this novel results, that the seeds of Dacryodes edulis contained high amounts of phytic acid, oxalate, TIA and tannins. Physicochemical data on the other hand suggest the seeds of Dacryodes edulis to have valuable functional attributes of industrial interest.
Encyclopedia of Psychology and Religion
Mark Hanson
Theological Librarianship , 2010,
Abstract:
Fifty years of entomological publications in the Revista de Biología Tropical
Paul Hanson
Revista de Biología Tropical , 2002,
Abstract: Over its fifty year history nearly twenty percent of the papers published in the Revista de Biología Tropical have been about inseets and arachnids. In the 1950's papers on arthropods of medical importance were dominant, in the 1960's there was a poliferation of papers on bees, and in more recent years the subjects have become incresingly diverse. In terms of nationality of contributing authors, the journal appears to have become increasingly international in later years. A través de su historia de cincuenta a os, casi veinte porciento de los artículos publicados en la Revista de Biología Tropical trataron de insectos y arácnidos. En los aiíos cincuenta dominaron los artículos sobre artrópodos de importancia médica, en los a os sesenta hubo una proliferación de artículos sobre abejas, y en los últimos a os los temas incluidos se hicieron más diversos. En términos de la nacionalidad de los autores contribuyentes, parece que la revista se ha vuelto más internacional en los últimos a os.
Down from the Ivory Tower: Climate Science Faces the Real World
Howard Hanson
The Scientific World Journal , 2003, DOI: 10.1100/tsw.2003.27
Abstract:
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