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| Registros recuperados: 237 | |
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| González Covarrubias, Galdino Daniel. |
| En el presente estudio se realizó el análisis de las Unidades de Riego con aprovechamiento superficial en la Cuenca Lerma Chapala, México, a través de la georrefenciación y caracterización de la infraestructura hidroagrícola, padrón de usuarios y catastro, integrándolos en un Modelo de Sistema de Información Geográfica (SIG). Esto permitió conocer en forma precisa la información relevante de dichas Unidades. Se caracterizaron 1,364 unidades de riego con un total de 56,266 usuarios que detentan 114,975.26 hectáreas. La longitud de la red de conducción es de 2,435 km y la longitud de la red de drenaje es de 2,643 km, y 34,965 estructuras de control. La integración de las capas de información generadas en formato shape-file (*.shp) al Modelo de SIG de la... |
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Palavras-chave: Modelación; SIG; Riego; Agua; Sustentabilidad; Cuenca; Modeling; GIS; Irrigation; Water; Sustainability; Watershed; Hidrociencias; Maestría Tecnológica. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/2072 |
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| Szeleszczuk,Ł; Pisklak,DM; Wawer,I. |
| ABSTRACT The water content of the chicken eggshell has a major influence on gas (CO2 and O2) permeability. Inappropriate water loss during the incubation period increases embryo mortality and decreases chick quality. So far only the procedures that enable to determine the total water content in the eggshell have been described and developed. Our analysis of the 1H MAS NMR spectra of the chicken eggshell samples revealed three signals, differing significantly in the chemical shift and relaxation times (T1) parameters. In this work we have assigned those signals and described the changes in their intensities that occur during the incubation period. Using 1H MAS NMR it is possible to distinguish two types of water reservoirs in the chicken eggshell. This... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water; Chicken eggshell; NMR; Incubation. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000600027 |
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| Bizani,Delmar; Brandelli,Adriano. |
| The presence of Aeromonas spp. in food has been demonstrated. They are often introduced from water, which is the natural habitat of many species and is thought to be the main source of contamination. The occurrence of Aeromonas spp. was investigated in 70 water samples of a bovine abattoir. Aeromonas spp. were present in 21.4% of water samples. A. hydrophila was isolated from 11.4% of supplying water samples and from 25.7% of the water drained from carcasses, whereas A. sobria was sole isolated from 5.7% of supplying water samples. Although greater number of positive samples were from water drained from carcasses, only A. hydrophila isolates were present. This suggests that the supplying water is the source of contamination. The antibiotic susceptibility... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aeromonas; Antibiotic activity; Aquatic environment; Hemolysis; Water. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000400016 |
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| Gourmelon, Michele; Caprais, Marie-paule; Le Mennec, Cecile; Mieszkin, Sophie; Ponthoreau, C.; Gendronneau, M.. |
| Faecal contamination sources were identified in coastal areas around the Guerande-Atlantique peninsula using two microbial source tracking (MST) methods: (i) Bacteroidales host-specific 16S rRNA gene markers measured by real-time PCR and (ii) F-specific bacteriophage (FRNAPH) genotyping. Both methods were used on 63 water samples from 7 water courses. HF183 marker and bacteriophage genogroup II (FRNAPH II) were detected in all water samples and in the majority of water samples, respectively, from La Torre stream (W5), Piriac (W2), R2000 (W3) and Mazy (W7) rain water drains, and also detected, less frequently, in Le Nau drain (W4), suggesting contamination by human faecal sources at these sites. These human markers were weakly detected in Pouliguen channel... |
| Tipo: Text |
Palavras-chave: Bacteroidales; F-specific RNA bacteriophages; Faecal bacterial indicators; Microbial source tracking; Water. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00003/11384/10304.pdf |
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| Finkelshtain, Israel; Kan, Iddo; Kislev, Yoav. |
| Direct commands, market based, or combined, whichever is the government's mean of intervention, is expected to raise political lobbying and pressure. This study offers a political-economic model of an industry, which is regulated by an integrated system of both direct and market based policies. The model is used for a normative theoretical analysis and as a basis for a structural econometric framework. Exploiting a unique data set that describes the regulations of irrigation water in Israel during the mid eighties by means of quotas and prices, the political and technological parameters of the model are structurally estimated and used to assess the relative efficiency of quotas, prices and integrated regulation regimes. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Political Economy; Natural Resources; Water; Political Economy; D72. |
| Ano: 2010 |
URL: http://purl.umn.edu/93133 |
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| BORGES-PEDRO,João Paulo; MÜLLER,Patricia; NUNES,Andreza Pinheiro; GOMES,Maria Cecilia R. L.. |
| ABSTRACT This study analyzed environmental aspects of county and state managed public schools within Tefé county in the Brazilian Amazon, using the WASH concept (Water, Sanitation and Hygiene) developed by UNICEF and OMS. WASH is a strategy used since 1995, when child mortality rates were on the rise. Research was conducted using a questionnaire applied to employees of 19 primary and secondary schools, and based on WASH principles. After its application, we used an observation checklist to assess the state of the schools’ physical structure. We also conducted water quality analyses. All schools presented water contamination with total coliforms and 26% did not conduct any type of water treatment. The number of toilets in all schools was insufficient, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water; Sanitation; Hygiene; Public schools; UNICEF. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000100075 |
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| Castro-jimenez, J.; Mariani, G.; Vives, I.; Skejo, H.; Umlauf, G.; Zaldivar, J. M.; Dueri, Sibylle; Messiaen, Gregory; Laugier, Thierry. |
| Atmospheric concentrations and deposition fluxes of PCDD/F and PCB have been evaluated over a 1-year period in a Mediterranean coastal lagoon (Etang de Thau, France). Indicative PBDE air concentrations in the hot season are also reported in this work. ∑2,3,7,8-PCDD/Fs and ∑18PCBs (gas + particulate) air concentrations ranged from 67 to 1700 fg m−3 and from 13 to 95 pg m−3, respectively whereas ∑8PBDEs (gas + particulate) summer time levels varied from 158 to 230 pg m−3. The PCDD/F and PCB atmospheric occurrence over Thau lagoon and subsequent inputs to the surface waters are determined by an assemble of factors, being the seasonality of atmospheric concentration, the air mass origin and meteorological conditions important drivers. Total (wet + dry)... |
| Tipo: Text |
Palavras-chave: PCDD/F; Dioxin-like PCB; PBDE; Air; Water. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00033/14429/12600.pdf |
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| ROCHA, F. E. de C.; RAMOS, E. M. S.; KISHI, S. M.; MARCELINO, M. Q. dos S.; SOUSA, E. dos S. de; JÚLIO, L. DE; TIMPONI, M. R.. |
| Avaliou-se o uso sustentável da água na agricultura tendo como base um modelo pré-estabelecido e as crenças, atitudes e valores de extensionistas rurais. Com base na fala dos entrevistados e na literatura consultada, considerou-se como sistema sustentável a interação dos seguintes fatores: recuperação e conservação de nascentes, conservação e recuperação de matas de galeria/ciliares; uso de água na agricultura; manejo e conservação do solo e gestão de resíduos. O delineamento do estudo foi correlacional com amostragem não probabilística. O tamanho da amostra foi definido pela saturação das crenças. Utilizou-se questionário com perguntas semiestruturadas aplicado na forma de entrevistas a 21 técnicos da Emater/DF. As entrevistas foram gravadas, transcritas... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Recursos hídricos; Estudo qualitativo; Análise de conteúdo; Qualitative study; Rural extension; Content analysis.; Água; Extensão Rural.; Water resources.; Water. |
| Ano: 2010 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/891234 |
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| Reche,Maria Helena Lima Ribeiro; Fiuza,Lídia Mariana. |
| Bacteria are the most diverse living beings on earth and only a fraction of them have been identified. This paper aims at the analysis of the diversity of mesophilic and heterotrophic bacteria found in samples of irrigation water from rice-fields areas in Rio Grande do Sul State, Brazil. Sample collection was carried out in five rice crop regions areas and followed by isolation, multiplication and bacterial characterization. The species' identification was based on biochemical tests (API-System, bioMérieux). Bacterial diversity was determined by the Shannon & Weaner and Pielou index. The results regarding bacterial diversity revealed 26 species. The most abundant representatives belonged to the Bacillus, Corynebacterium, Staphylococcus and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteria; Diversity; Water; Rice-field. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822005000300009 |
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| Estévez, J. R.; Valcárcel, L.; Pupo, I.; Montero, A.; Frías, D.; Alberro, N.; López, D.; Simón, D.; Isaac, M. A.; Ramos, M.; Rivera, N.; Guevara, C.; Sánchez, L.; Cruz, D.; Blanco, M.; Sánchez, L.. |
| Se determinó un grupo de parámetros físico-químicos de las aguas del Acuario Nacional de Cuba (ANC) y de la zona de semicautiverio donde están confinados los delfines, con el objetivo de evaluar la calidad de las mismas. Los valores obtenidos fueron siempre inferiores a los límites permisibles de acuerdo a la propuesta de norma por el ANC o a Normas internacionales. |
| Tipo: Journal Contribution |
Palavras-chave: Quality; Water; Aquarium culture; Water; Quality; Http://aims.fao.org/aos/agrovoc/c_8309; Http://aims.fao.org/aos/agrovoc/c_6400. |
| Ano: 2005 |
URL: http://hdl.handle.net/1834/3100 |
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| SILVA, A. de S.; PORTO E. R.; BRITO, L. T. de L.; MONTEIRO, M. A. R.. |
| Um experimento conduzido nos anos agricolas de 1982 a 1985, no campo experimental de manejo da Caatinga, EMBRAPA-CPATSA, avaliou-se tres sistemas de captacao de agua de vhuva "in situ", metodos: Guimaraes Duque, CP-Mexico e Sulcos e Camalhoes, em curva de nivel, comparando-os com o sistema tradicional de preparo do solo e plantio, em covas e no plano. O delineamento foi em blocos ao acaso com oito repeticoes, instalado em escala operacional. As condicoes climaticas influenciaram ao nivel de 1,0% de probabilidade sobre a produtividade do caupi, e a interacao clima x tratamento foi significativa ao nivel de 5,0% de probabilidade. Nos anos de precipitacoes pluviometricas espaco-temporatis irregulares, fato comum na regiao semi-arida brasileira, os metodos... |
| Tipo: Capítulo em livro técnico (INFOTECA-E) |
Palavras-chave: Captacao in situ; Sequeiro; Regiao semi-arida; Management; In situ rainfall water; Rainfed agriculture; Semi-arid region; Solo; Água; Agricultura; Manejo; Soil; Water. |
| Ano: 1989 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133220 |
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| MONTEIRO, M. A. R.; SILVA, A. de S.; BRITO, L. T. de L.; PORTO, E. R.. |
| Para se determinar as populacoes de milho variedade Centralmex, com o sistema de captacao de agua de chuva "in situ", mais adequadas as regioes com elevada irregularidade pluviometrica espaco-temporal, foram instalados experimentos nos anos agricolas de 82/83, 83/84 e 84/85 no Campo Experimental da Caatinga do CPATSA-EMBRAPA, avaliando cinco densidades de plantio (75.000, 60.000, 45.000, 30.000 e 15.000 plantas/ha). O delineamento experimental foi em blocos ao acaso com seis repeticoes. Houve um efeito altamente significativo da densidade de plantio sobre a produtividade do milho nos tres anos. A analise conjunta apresentou um efeito significativo ao nivel de 1% de probabilidade para os anos e para a interacao ano-densidade. |
| Tipo: Capítulo em livro técnico (INFOTECA-E) |
Palavras-chave: Captacao in situ; Sequeiro; Dry farming; Management; Agricultura; Água; Espaçamento; Manejo; Milho; Zea Mays; Agriculture; Corn; Row spacing; Water. |
| Ano: 1989 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132603 |
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| Registros recuperados: 237 | |
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