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| Registros recuperados: 31.147 | |
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| Abud,Haynna Fernandes; Reis,Rodrigo de Góes Esperon; Innecco,Renato; Bezerra,Antonio Marcos Esmeraldo. |
| Resumo O tamanho das sementes pode influenciar a emergência e o vigor das plântulas. Assim, avaliou-se a emergência e desenvolvimento de cártamos em função do tamanho da semente. A separação das sementes foi realizada em peneiras de crivo circular de diâmetros de 3,18; 3,57; 3,97 e 4, 36 mm. Fez-se a pesagem das sementes retidas em cada peneira para observação da proporção de cada tamanho de semente no lote. Para cada classe de tamanho foi determinado o peso de mil sementes e o teor de água. Foi utilizado o delineamento inteiramente casualizado, com cinco tratamentos e quatro repetições, com 30 sementes cada. Foram analisadas as seguintes variáveis: percentual, índice de velocidade, tempo médio de emergência, altura e matéria seca da parte aérea da... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carthamus tinctorius; Vigor; Tamanho de sementes. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902010000100095 |
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| Acar,Ali; Kemahli,Sabri; Altunay,Husnu; Kosan,Erdogan; Oncul,Oral; Gorenek,Levent; Cavuslu,Saban. |
| The national blood transfusion policies have been changed significantly in recent years in Turkey. The purpose of this study was to determine the prevalence of HBV, HCV, and HIV in blood donors at the Red Crescent Center in Istanbul and to evaluate the effect of changes in the national blood transfusion policies on the prevalence of these infections. The screening results of 72695 blood donations at the Red Crescent Center in Istanbul between January and December 2007 were evaluated retrospectively. HBsAg, anti-HCV, and anti-HIV-1/2 were screened by microparticle enzyme immunoassay (MEIA) method. Samples found to be positive for anti-HIV 1/2 and anti-HCV were confirmed by Inno-Lia HCV Ab III and Inno-Lia HIV I/II Score, respectively. The seropositivity... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HBV; HCV; HIV; Seroprevalence; Blood donors; Turkey. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702010000100009 |
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| ACEBES,PABLO; TRABA,JUAN; PECO,BEGOÑA; REUS,MARÍA L; GIANNONI,STELLA M; MALO,JUAN E. |
| Defining plant communities in desert zones is difficult due to large scale homogeneity and small scale heterogeneity, thus making provision of systematic information for conservation decisions problematic. We analysed plant communities of the most arid sector of Monte Desert for structure, plant composition and environmental variables. Small-scale variables such as slope, rock cover, bare ground and litter, as well as large-scale ones such as species diversity, composition and similarity within and between sites were included. Analyses of floristic composition showed the difficulty of segregating distinct communities due to high internal heterogeneity and overlap between the different sites. Only mesquite woodlands, a community situated at the extreme of... |
| Tipo: Journal article |
Palavras-chave: Arid environment; Heterogeneity; Shrubland; Similarity; Species richness. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2010000300007 |
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| Acerbi Júnior,Fausto Weimar; Silveira,Eduarda Martiniano de Oliveira; Mello,José Márcio de; Mello,Carlos Rogério de; Scolforo,José Roberto Soares. |
| The Normalized Difference Vegetation Index (NDVI) is often used to extract information from vegetated areas since it is directly related to vegetation parameters such as percent of ground cover, photosynthetic activity of the plant and leaf area index. The aim of this paper was to analyze the potencial of semivariograms generated from NDVI values to detect changes in vegetated areas, analyzing their behavior (shape) and derived metrics (range, sill and nugget). Semivariograms were generated from NDVI values derived from Landsat TM images of May 2010, June 2010 and July 2011. The study area is located in the northern state of Minas Gerais, Brazil, and is covered by Brazilian savannas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Deforestation; Geostatistics; Remote sensing. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000200103 |
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| Acero-P., Arturo; Garzón-Ferreira, Jaime. |
| Se describe por primera vez la especie conocida vulgarmente en inglés como "masked hamlet" con el nombre científico de Hypoplectrus providencianus spec. nov. La especie se separa claramente de sus congéneres por la coloración: cuerpo pálido, barra negra a modo de lágrima, aletas pectorales negras (o al menos con los bordes dorsales oscuros), aleta caudal oscura (o al menos con los márgenes superior e inferior negruzcos), mancha peduncular negra entre bien desarrollada a ausente. Se le conoce solamente de islas del Caribe occidental y aguas adyacentes: Providencia, cayos de Bolívar (= Courtown) y Albuquerque, Grand Cayman y Jamaica. Se presenta información sobre las otras especies del género conocidas de Colombia: H. puella, H. unicolor, H. nigricans, "tan... |
| Tipo: Journal Contribution |
Palavras-chave: Ichthyology; Taxonomy; Geographical distribution; Marine fish; Taxonomy; Geographical distribution; Ichthyology; Http://aims.fao.org/aos/agrovoc/c_7631; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_3788. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/3785 |
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| Acevedo,Ana María; Burgher,Yaima; Colás,M; Relova,Damaris; Correa,Arisel; Bacallao,Elsa; Noda,Julia. |
| La bronquitis infecciosa aviar (BIA) es una enfermedad viral ampliamente diseminada en el mundo y se considera una de las principales causas de pérdidas económicas significativas en la industria avícola, debido a que afecta el desarrollo de aves de engorde y ponedoras. En Cuba, el diagnóstico actual se realiza por aislamiento viral y es difícil su identificación por métodos convencionales. Para identificar la posible presencia del virus de la BIA en aislados cubanos se aplicó un ensayo de reverso transcripción acoplado a reacción en cadena de la polimerasa (RT-PCR) específico para este virus. Las muestras de tráquea-pulmón fueron tomadas como grupos de tres y cuatro aves después de la necropsia de cada una, evaluándose un total de once aves. Las secuencias... |
| Tipo: Journal article |
Palavras-chave: Virus de la bronquitis infecciosa aviar; Aislamiento viral; Reverso transcripción acoplada a reacción en cadena de la polimerasa (RT-PCR). |
| Ano: 2010 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2010000200007 |
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| Registros recuperados: 31.147 | |
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