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Registros recuperados: 34
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Assessment of health risks and local intervention associated to living together with dogs and cats, developed at Jardim Parana, district of Brasilandia. São Paulo, Sp,- Brazil, 2003 MV&Z
Gomes, Luciana Hardt; de Almeida, Marilene Fernandes; Paranhos, Noêmia Tucunduva; Garcia, Rita de Cássia; Nunes, Vânia de Fátima Plaza; Montenegro Neto, Hildebrando; Cardoso, Sônia Maria Sodré.
Objective: To carry out a situational diagnosis of interactions among man, animal and environment, to test intervention and control model in dogs and cats and lo make local population aware in order to improve human and animal health. Material and Method: The project "Evaluation of risks to the heath and local intervention associated to living together with dogs and cats" was carried out in the area invaded in Jardim Paraná, District of Brasilândia, São PauLo city, Brazil, in 2003 by the Center of Zoonosis Control of the São Paulo Municipality. Animal census, vaccinations, treatment of ectoparasitosis and endoparasitosis, animal register, animal sterilization, serological and soil examinations and removal of animals was carried through. Forty seven percent...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zoonoses; Community health; Local planning; Animal health; Environment; Risk factors; Human; Animal; Interactions; Intervention; Population control; Sterilization; Dogs; Cats Zoonosis; Planificación en salud comunitaria; Estrategias locales; Salud animal; Medio ambiente y salud publica; Factores de riesgo; Hombres; Animales; Vínculo ser humano-animal; Estudios de intervención; Regulación de la población zoonoses; Planejamento em saúde comunitária; Estratégias locais; Saúde animal; Meio ambiente e saúde pública; Fatores de risco; Homens; Animais; Vínculo homem-animal; Estudos de intervenção; Controle da população; Esterilização reprodutiva; Cães; Gatos.
Ano: 2003 URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3262
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Bacterial Dynamics in a Microphytobenthic Biofilm: a Tidal Mesocosm Approach ArchiMer
Agogue, Helene; Mallet, Clarisse; Orvain, Francis; De Crignis, Margot; Mornet, Francoise; Dupuy, Christine.
In intertidal mudflats, during low tide exposure, microphytobenthos (MPB) migrate vertically through the surface sediment and form, with the heterotrophic bacteria, a transient biofilm. Inside this biofilm, multiple interactions exist between MPB and bacteria. These micro-organisms secrete a wide range of extracellular polymeric substances (EPS), which are major components of the biofilm matrix. In this study, we used a tidal mesocosm experiment in order to decipher the interactions of the MPB-EPS-bacteria complex within the biofilm. We tried to determine if the EPS could control bacterial activities and/or production and/or richness according to the age of the biofilm and to the immersion/emersion period. The dynamics of biomasses of MPB and prokaryotes,...
Tipo: Text Palavras-chave: Muddy sediment; Microphytobenthos; Bacteria; Extracellular polymeric substances; Interactions; Mesocosm.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00181/29271/27682.pdf
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Bees and plants in a transition area between atlantic rain forest and araucaria forest in Southern Brazil. Repositório Alice
MOUGA, D. M. D. da S.; NOBLE, C. F.; BUSSMANN, D. B. G.; KRUG, C..
The community of native bees from a transition area between Atlantic rain forest and Araucaria forest in Joinville, Santa Catarina state, Brazil, was studied regarding to species richness, relative abundance, floral resources and plant interactions. Observations were made monthly from 2008 to 2009, using entomological nets. 710 individuals of 88 species were sampled from the five bee subfamilies existing in Brazil. The bees were sampled on 62 plant species from 29 families. The most visited plant families were Asteraceae (48 %), Lamiaceae (10 %), Saxifragaceae (9 %) and Rosaceae (8 %). The bee subfamily with the highest species diversity was Halictinae (44 %), followed by Apinae (38 %), Andreninae (11 %), Megachilinae (8 %) and Colletinae (1 %). The...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Bees; Interactions.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/943410
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Coastal phytoplankton community dynamics and coexistence driven by intragroup density-dependence, light and hydrodynamics ArchiMer
Barraquand, F.; Picoche, C.; Maurer, Daniele; Carassou, L.; Auby, Isabelle.
Phytoplanktonic communities maintain a high diversity in a seemingly homogeneous environment, competing for the same set of resources. Many theories have been proposed to explain this coexistence despite likely competition, such as contrasted responses to temporal environmental variation. However, theory has developed at a faster pace than empirical evaluation using field data, which requires inferring drivers of community dynamics from observational time series. Here, we combine autoregressive models with a data set spanning more than 20 years of phytoplankton counts every two weeks, together with nutrients and physical variables. By comparing models dominated by nutrients or physical variables (hydrodynamics and climate), we first explore which abiotic...
Tipo: Text Palavras-chave: Competition; Diatoms; Dinoflagellates; Hydrodynamics; Interactions; MAR; Mutualism; Network; Population dynamics; Seasonality; Time series.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00461/57257/59285.pdf
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Dinámica de las interacciones algal-coral en dos Bahías de la región de Santa Marta (caribe colombiano) con distinto grado de influencia antropogénica OceanDocs
Mejía N., N.; Garzón-Ferreira, J..
As a contribution to understanding the potential impact of macroalgae on coral communities, this work evaluated the presence and dynamics of algae-coral interactions in two bays of the Santa Marta region. Two stations were sampled in Chengue Bay, located within the Tayrona Natural Park, and two other in the Santa Marta Bay which is adjacent to the city of Santa Marta. Three permanent 10 m belt transects were settled at each station, at which a total of 270 coral colonies were monitored monthly. Algae - coral interactions were recorded from each colony based on five categories defined by the distance between the coral tissue and the algal mat. A total of 1956 interactions were recorded, 67% of which corresponded to direct contacts, 22% to indirect contacts,...
Tipo: Journal Contribution Palavras-chave: Coral reefs; Algae; Interactions; Coral reefs; Algae; Http://aims.fao.org/aos/agrovoc/c_1880; Http://aims.fao.org/aos/agrovoc/c_258.
Ano: 2003 URL: http://hdl.handle.net/1834/3190
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Does disturbance determines the prevalence of dwarf mistletoe (Arceuthobium, Santalales: Viscaceae) in Central Mexico? RChHN
QUEIJEIRO-BOLAÑOS,MÓNICA E; CANO-SANTANA,ZENÓN; CASTELLANOS-VARGAS,IVÁN.
Large vegetation disturbance rates have been reported in the "Zoquiapan y Anexas" Protected Natural Area in Central Mexico. Arceuthobium globosum and A. vaginatum coexist within this area and have a deleterious impact on Pinus hartwegii. This study seeks to understand the relationship between this disturbance and the two dwarf mistletoe species prevalent in this zone. Twenty-four plots measuring 60 x55 m containing P. hartwegii trees were selected. Within these plots, the physical features of the land, the density of host and non-host trees, the prevalence of each mistletoe species, and six disturbance indicators were recorded. We found that A. vaginatum infests up to 47 % of P hartwegii trees and that its prevalence is affected positively by the slope,...
Tipo: Journal article Palavras-chave: Disturbance indicators; Interactions; Logging; Parasitic plants; Pinus hartwegii.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2013000200007
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Dual transcriptomics of virus-host interactions: comparing two Pacific oyster families presenting contrasted susceptibility to ostreid herpesvirus 1 ArchiMer
Segarra, Amelie; Mauduit, Florian; Faury, Nicole; Trancart, Suzanne; Degremont, Lionel; Tourbiez, Delphine; Haffner, Philippe; Barbosa-solomieu, Valerie; Pepin, Jean-francois; Travers, Marie-agnes; Renault, Tristan.
Background: Massive mortality outbreaks affecting Pacific oyster (Crassostrea gigas) spat in various countries have been associated with the detection of a herpesvirus called ostreid herpesvirus type 1 (OsHV-1). However, few studies have been performed to understand and follow viral gene expression, as it has been done in vertebrate herpesviruses. In this work, experimental infection trials of C. gigas spat with OsHV-1 were conducted in order to test the susceptibility of several bi-parental oyster families to this virus and to analyze host-pathogen interactions using in vivo transcriptomic approaches. Results: The divergent response of these oyster families in terms of mortality confirmed that susceptibility to OsHV-1 infection has a significant...
Tipo: Text Palavras-chave: Interactions; Ostreid herpesvirus 1; Gene expression; Susceptibility; Crassostrea gigas.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00199/31029/29431.pdf
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Ecological and biological factors controlling the concentrations of trace elements (As, Cd, Cu, Hg, Se, Zn) in delphinids Globicephala melas from the North Atlantic Ocean ArchiMer
Caurant, Florence; Amiard, Jean-claude; Amiard-triquet, Claude; Sauriau, Pierre-guy.
Trace elements (As, Cd, Cu, Hg, Se and Zn) were determined in liver and kidney of pilot whales Globicephala melas Traill, 1809 collected from 7 schools caught at different seasons around the Faroe Islands. These and other biological data at our disposal enabled us to confirm and to define more accurately the relations shown previously between age, sex and trace element concentrations in marine mammals. The most striking features were: (1) the elevated levels of Cd and Hg in pilot whales compared to other marine mammals and to minimum adverse-effect levels established for humans; (2) the biocumulative behaviour of Cd and Hg; (3) the high correlations between Hg and Se, predominantly influenced by age; and (4) the high correlations between Cd and Zn, the...
Tipo: Text Palavras-chave: Marine mammals; Heavy metals; Interactions.
Ano: 1994 URL: http://archimer.ifremer.fr/doc/00196/30766/29149.pdf
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Effects of nitrogen limitation on Dunaliella sp.–Alteromonas sp. interactions: from mutualistic to competitive relationships. ArchiMer
Le Chevanton, Myriam; Garnier, Matthieu; Lukomska, Ewa; Schreiber, Nathalie; Cadoret, Jean-paul; Saint-jean, Bruno; Bougaran, Gael.
Interactions between photosynthetic and non-photosynthetic microorganisms play an essential role in natural aquatic environments and the contribution of bacteria and microalgae to the nitrogen cycle can lead to both competitive and mutualistic relationships. Nitrogen is considered to be, with phosphorus and iron, one of the main limiting nutrients for primary production in the oceans and its availability experiences large temporal and geographical variations. For these reasons, it is important to understand how competitive and mutualistic interactions between photosynthetic and heterotrophic microorganisms are impacted by nitrogen limitation. In a previous study performed in batch cultures, the addition of a selected bacterial strain of Alteromonas sp....
Tipo: Text Palavras-chave: Interactions; Nitrogen limitation; Microalgae; Bacteria; Chemostat; Dissolved organic matter (DOM); Dunaliella.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00344/45529/45087.pdf
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Eficiencia en el uso de nitrógeno en maíz. Colegio de Postgraduados
Alvarado Gómez, Luis Carlos.
El maíz ocupa a nivel mundial el tercer lugar en importancia después del trigo y el arroz. Este cultivo en México cubre una superficie anual aproximada de ocho millones de ha. El N como fertilizante es un elemento importante para lograr rendimientos satisfactorios, sin embargo, el uso indiscriminado de N ha traído cambios negativos en el ambiente, principalmente en la atmósfera, mantos acuíferos y sistemas lagunares, entre otros componentes de los ecosistemas, adicionalmente el alto costo energético hace necesario incrementar la eficiencia en el uso del N (EUN), una de las alternativas es el uso de variedades que absorban y metabolicen el N de manera más eficiente, El desarrollo de variedades mejoradas de maíces será mayor con el conocimiento de las bases...
Palavras-chave: Zea mays L.; Dosis de fertilización; Genotipos; Interacciones; Localidades; Fertilizer dosage; Genotypes; Interactions; Locations; Doctorado; Agroecosistemas Tropicales.
Ano: 2010 URL: http://hdl.handle.net/10521/432
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Étude numérique et expérimentale du comportement d’hydroliennes ArchiMer
Mycek, Paul.
This manuscript deals with the numerical and experimental characterisation of the behaviour of marine current turbines. In the experimental part, trials were run at IFREMER’s wave and current flume tank in Boulogne-Sur-Mer, on prototypes of three-bladed horizontal axis turbines. Configurations with one single turbine on the one hand, and two turbines aligned with the incoming flow on the other hand, were considered for a large range of TSRs and, when relevant, of inter-device distances. The behaviour of the turbines is analysed in terms of performances (power and thrust coefficients) and development of the wake. The effects of the ambient turbulence intensity rate are also considered. Besides, numerical computations, obtained from a tridimensional unsteady...
Tipo: Text Palavras-chave: Hydroliennes; Interactions; Essais expérimentaux; Simulation numérique; Méthode particulaire; Méthode Vortex.; Marine current turbines; Interactions; Experimental trials; Numerical computation; Particle method; Vortex method.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00170/28152/26382.pdf
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Evaluation des intercations entre les dauphins et les filets de pêche des sardiniers de la région de Mahdia et réduction de leur impact par l'utilisation des ondes acoustiques générées par le "tube dauphin". OceanDocs
Ben Naceur, L.; Bdioui, M.; M'rabet, R..
ن ارتفاع تكلفة صيانة الشباك الدائرة و العينية جراء هجمات الدلافين،يؤثر كثيرا علي مرد ودية وحدات الصيد. و للحد من هذه الهجمات، ابتكر المعهد الوطني لعلوم وتكنلوجيا البحار آلة ميكانيكية سميت "انبوب الدلفين"، تبعث عند طرقها، ذبذبات صوتية قادرة علي إجبار الدلافين علي مغادرة مكان تواجد شباك الصيد . بعد مدة استعمال ناجحة نسبيا طفت المشكلة علي الساحة من جديد وبأكثر حدة. لهذا الغرض أنجز برنامج عمل، مكن من تقييم التفاعل بين الدلافين والشباك الدائرة لصيد الأسماك الصغيرة العائمة بجهة المهدية ومن إدخال بعض التحسينات علي "أنبوب الدلفين" الذي أثبتت التجارب الميدانية بأنه أصبح قادرا علي تشويش جهاز الرصد عند الدلافين مع بعث حدة صوتية لا يتحملها الجهاز الحسي السمعي لهذا الحيوان.
Tipo: Journal Contribution Palavras-chave: Gillnets; Gear research; Interactions; Interactions; Marine mammals; Pelagic fisheries; Seine nets; Sound waves; Gillnets; Sound waves; Pelagic fisheries; Http://aims.fao.org/aos/agrovoc/c_32431; Http://aims.fao.org/aos/agrovoc/c_29057; Http://aims.fao.org/aos/agrovoc/c_5659.
Ano: 2007 URL: http://hdl.handle.net/1834/4282
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How to use the Reductionist approach for evaluating subsystems to research the elements of the development AgEcon
Goda, Pal; Toth, Tamas; Kollar, Kitti.
Reductionist approach for evaluating subsystems
Tipo: Journal Article Palavras-chave: System; Sub-system; Interactions; Components general spider map theory; Local community; Network entropy; Social physics; Agribusiness; Community/Rural/Urban Development.
Ano: 2008 URL: http://purl.umn.edu/47545
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IDENTIFYING CONSUMER VALUATION PATTERNS OF ALTERNATIVE NUTRITION AND HEALTH LABELS COMBINATIONS: EVIDENCE FROM SPAIN AgEcon
Barreiro-Hurlé, Jesús; Gracia, Azucena; de Magistris, Tiziana.
The provision of nutrition and health information on food labels is increasing as an industry and regulation answer to the growing consumer concern with diet-health relationships. Prior research has shown that the presence of this information on food labels is valued by consumers; however there is still no clear pattern on which labelling options are more valued and how different consumers value the different options. This paper analyses the results of a choice experiment conducted to identify the effect of multiple health and nutrition information sources on consumer food choice, taking into account preference heterogeneity using a latent class approach. Results show that different consumer groups can be identified with clearly distinguishable valuation...
Tipo: Conference Paper or Presentation Palavras-chave: Nutrition facts panel; Latent class; Choice experiments; Consumer; Interactions; Health claims; Nutrition claims; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Health Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/53338
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Interacciones entre corales y macroalgas: dependencia de las especies involucradas OceanDocs
Márquez, J.C.; Díaz, J.M..
Macroalgae proliferation on coral reefs has been a recognized phenomenon for the past two decades and is generally entitled to the human activities on the coasts. Even thought, the role of competition in this process is not clear and it has been assumed that algae are competitively superior to corals, even when it has been demonstrated that this is not always the case. It is probable that the result of coral-macroalgae depends upon the species involved. The goal of this study was to demonstrate that there is a dependence relation between interaction category and interacting species. In order to resolve this, quantifications of interactions per category along 20 m transects were done on three representative localities at the Archipielago de San Bernardo....
Tipo: Journal Contribution Palavras-chave: Coral; Interactions; Competition; Benthos; Benthos; Http://aims.fao.org/aos/agrovoc/c_878.
Ano: 2005 URL: http://hdl.handle.net/1834/2013
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Interaction among resistant rice genotypes, whitebacked planthopper Sogatella furcifera (Horvath), and egg parasitoid Anagrus nr. flaveolus International Rice Research Institute
Nalini, R.; Gunathilagaraj, K.; Uthamasamy, S..
p.29-30
Palavras-chave: Insect pests; Sogatella furcifera; Parasitoids; Anagrus; Pest control; Genotypes; Interactions; India.
Ano: 2005 URL: http://hdl.handle.net/123456789/1110
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Interaction entre les activités de pêche dans le golfe de Gabès OceanDocs
Jabeur, Ch.; Missaoui, H..
Les activités de pêche dans le Golfe de Gabès sont diverses et sont rarement monospécifiques, plusieurs espèces sont pêchées par un même engin (cas du chalutage) et une même espèce est exploitée par plusieurs engins et donc par plusieurs métiers (chalutage et pêche côtière). Les interactions qui existent entre ces métiers sont fortes et sont essentiellement de type compétition sur les ressources et l’espace. Les relations de complémentarité et de substitution sont rares.
Tipo: Journal Contribution Palavras-chave: Catching methods; Marine fisheries; Fishing; Interactions; Fishing gear.
Ano: 2000 URL: http://hdl.handle.net/1834/4293
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Interactions Among Ecosystem Services Across Land Uses in a Floodplain Agroecosystem Ecology and Society
Bennett, Elena M.; Department of Natural Resource Sciences and McGill School of Environment, McGill University; elena.bennett@mcgill.ca.
Managing human-dominated landscapes such as agroecosystems is one of the main challenges facing society today. Decisions about land-use management in agroecosystems involve spatial and temporal trade-offs. The key scales at which these trades-offs occur are poorly understood for most systems, and quantitative assessments of the services provided by agroecosystems under different combinations of land uses are rare. To fill these knowledge gaps, we measured 12 ecosystem services (ES), including climate regulation, gas regulation, soil stability, nutrient regulation, habitat quality, raw material production, food production, fishing, sports, recreation, education, and social relationships, in seven common land-use types at three spatial scales, i.e., patch,...
Tipo: Peer-Reviewed Reports Palavras-chave: Agroecosystem; Ecosystem services; Floodplain; Interactions; Land uses; Spatial scales; Trade-offs.
Ano: 2014
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Interactions between ammonium and urea uptake by five strains of Alexandrium catenella (Dinophyceae) in culture ArchiMer
Jauzein, Cecile; Loureiro, Sofia; Garces, Esther; Collos, Yves.
Short-term experiments were carried out to investigate whether interactions between ammonium (NH4+) and urea uptake regulate the total nitrogen assimilation of the toxic dinoflagellate Alexandrium catenella. To test for strain variability, 5 strains of A. catenella from the NW Mediterranean were used: 3 strains from the Thau lagoon (southern France) and 2 strains from the Catalonia basin (Spain). For each strain, the uptake rate of 1 nutrient (NH4+ or urea) at a reference concentration (10 mu gatN l(-1)) was measured as a function of the increasing concentration of the other nutrient (0 to 10 mu gatN l(-1)). Simultaneous N uptake rates of the distinct nitrogen sources were obtained from N-15-NH4+ and N-15-urea incorporation measurements. A strong...
Tipo: Text Palavras-chave: Strain variability; Interactions; Urea; Ammonium; Alexandrium catenella.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-6432.pdf
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Interactions between cationic liposomes and drugs or biomolecules Anais da ABC (AABC)
CARMONA-RIBEIRO,ANA MARIA.
Multiple uses for synthetic cationic liposomes composed of dioctadecyldimethylammonium bromide (DODAB) bilayer vesicles are presented. Drugs or biomolecules can be solubilized or incorporated in the cationic bilayers. The cationic liposomes themselves can act as antimicrobial agents causing death of bacteria and fungi at concentrations that barely affect mammalian cells in culture. Silica particles or polystyrene microspheres can be functionalized by coverage with DODAB bilayers or phospholipid monolayers. Negatively charged antigenic proteins can be carried by the cationic liposomes which generate a remarkable immunoadjuvant action. Nucleotides or DNA can be physically adsorbed to the cationic liposomes to be transferred to mammalian cells for gene...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Interactions; Dioctadecyldimethylammonium bromide; Phospholipids; Liposomes; Drugs; Surfaces.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652000000100005
Registros recuperados: 34
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