Resultados de búsqueda - "Chang’an"

Atrazine uptake, translocation, bioaccumulation and biodegradation in cattail (Typha latifolia) as a function of exposure time por Pérez, Débora Jesabel, Doucette, William Joseph, Moore, Matthew Truman

“…Thus, in this study, we aimed to analyze morphological changes, uptake, translocation and bioaccumulation patterns in tissues of the aquatic macrophyte Typha latifolia (cattail) after long-term atrazine exposure and to determine the presence of atrazine biodegradation metabolites, desethylatrazine (DEA) and desisopropylatrazine (DIA), in tissues. …”
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Ruminal effects of excessive dietary sulphur in feedlot cattle por Castro, Damian Jesus Nahuel, Ceron Cucchi, Maria Esperanza, Ortiz Chura, Abimael, Depetris, Gustavo, Irazoqui, Jose Matias, Amadio, Ariel, Cravero, Silvio Lorenzo Pedro, Canton, German Jose

“…The ruminal adaptation that maximizes H2S production in FC consuming S excess does not seem to be associated with biological or biochemical alterations, nor DSRB concentration changes. The microbial diversity and ruminal environment were resilient to the S excess evaluated, suggesting that 0.39% of dietary S achieved by 0.86% sodium sulfate addition, could be used without disturbances on digestion nor health of FC.…”
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Phosphorus and nitrogen fractions during base flow conditions of a Pampean stream and their relationship with land use por Torti, Maria Juliana, Portela, Silvina Isabel, Andriulo, Adrian Enrique

“…However, few studies evaluated the influence of these changes on water quality. The objectives of this study were to determine nitrogen (N) and phosphorus (P) fractions, trophic status and nutrient limitation of a typical Pampean stream, and to compare nutrient contents and speciation with different land uses (urban/industrial versus agricultural). …”
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Water consumption and preliminary crop coefficients of two Populus ×canadensis clones (‘I-214’ and ‘I-488’) grown at low planting density por Cañete Salinas, Paulo, Zamudio, Francisco, Yáñez, Marcos, Valdés Gómez, Héctor, Espinosa, Cristian, Venegas, Jaime, Retamal, Luis, Gyenge, Javier, Acevedo Opazo, César

“…Aim of study: The productivity of poplar plantations in Mediterranean climates might be reduced due to lower precipitations in a climate change scenario. Therefore, understanding the water consumption in these plantations is essential for their management. …”
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Embedding the integrated assessment of agricultural systems in a companion modeling process to debate and enhance their sustainability por Hossard, Laure, Tardivo, Caroline, Barbier, Jean Marc, Cittadini, Roberto, Delmotte, Sylvestre, Le Page, Christophe

“…The scenario was conceived as a “worst case”, embedded with drivers such as input costs and climate change. Opposing adaptation strategies were envisioned by farmers and other actors. …”
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From farm scale to village scale trade-offs : cereal crop residues use in an agro-pastoral system of the Sudanian zone of Burkina Faso por Andrieu, Nadine, Vayssières, Jonathan, Corbeels, Marc, Blanchard, Mélanie, Vall, Eric, Tittonell, Pablo Adrian

“…Increasing cereal productivity at the farm scale cannot be achieved without considering the trade-offs involved at the village scale. Changes in practices will require negotiations between the different types of farmers involved. …”
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Unveiling the increasingly altered patterns of wetland ecosystem functional diversity in the lower Delta of the Paraná River por Aquino, Diego Sebastián, Gavier Pizarro, Gregorio Ignacio, Quintana, Rubén Dario

“…Since climate, environmental and anthropic controls affect ecosystem functioning simul taneously, wetlands are permanently changing at different spatio–temporal scales. Thus, regionalizations based not only on structural, but also on functional features of ecosys tems constitute a much-needed baseline towards proper decision-making and environ mental management in the context of land degradation and water management infrastructure. …”
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Pesticide dynamics in agroecosystems: Assessing climatic and hydro-physical effects in a soybean cycle under no-tillage por Behrends Kraemer, Filipe, Castiglioni, Mario Guillermo, Chagas, Celio Ignacio, De Paula, R., Sainz, Daiana Soledad, De Geronimo, Eduardo, Aparicio, Virginia Carolina, Ferraro, Diego Omar

“…Thus, the selection of appropriate agricultural management is a key factor to modify hydro-physical top soil dynamics to change hydrological partition from horizontal to vertical fluxes, in particular in soils with poor structural condition.…”
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Spatial distribution of pesticides in surface water of the Estacas stream (Argentine Espinal region) associated with crop production por Van Opstal, Natalia Veronica, Gabioud, Emmanuel Adrian, Seehaus, Mariela, Pighini, Ramiro Joaquin, Repetti, Maria Rosa, Wilson, Marcelo German, Wingeyer, Ana Beatriz, Cuatrin, Alejandra, Regaldo, Luciana Maria, Gagneten, Ana Maria, Sasal, Maria Carolina

“…The Espinal region (Entre Ríos, Argentina) has sufered land use changes caused by expansion of the agricultural frontier. …”
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Carbon pool dynamics after variable retention harvesting in Nothofagus pumilio forests of Tierra del Fuego por Chaves, Jimena Elizabeth, Aravena Acuña, Marie Claire, Rodríguez‑Souilla, Julián, Cellini, Juan Manuel, Rappa, Nolan J., Lencinas, María Vanessa, Peri, Pablo Luis, Martínez Pastur, Guillermo José

“…The balance among carbon pool components changed between managed and unmanaged stands across the YAH, and was directly related to the impact magnitude. …”
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Modelling pasture management practices for soil organic carbon gain in livestock systems por Schimpf, Karen Gisele, Errecart, Pedro Manuel, Canziani, Graciela Ana

“…Our ability to develop strategies to mitigate climate change includes an understanding of, and our capacity to predict soil organic carbon (SOC) dynamics in livestock systems. …”
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Cytokine expression profile of B. melitensis-infected goat monocyte-derived macrophages por Maurizio, Estefanía, Rossi, Ursula Amaranta, Trangoni, Marcos David, Rossetti, Carlos Alberto

“…In this study, we first evaluated changes in the gene expression of cytokines, a chemokine (CCL2) and the inducible nitric oxide synthase (iNOS) of goat macrophage cultures derived from monocytes (MDMs) infected for 4 and 24 h with Brucella melitensis strain 16 M. …”
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Evaluating the performance of multiple remote sensing indices to predict the spatial variability of ecosystem structure and functioning in Patagonian steppes por Gaitan, Juan Jose, Bran, Donaldo Eduardo, Oliva, Gabriel Esteban, Ciari, Georgina, Nakamatsu, Viviana Beatriz, Salomone, Jorge Manuel, Ferrante, Daniela, Buono, Gustavo Gabriel, Massara Paletto, Virginia, Humano, Gervasio, Celdran, Diego Javier, Opazo, Walter Javier, Maestre, Fernando Tomás

“…Assessing the spatial variability of ecosystem structure and functioning is an important step towards developing monitoring systems to detect changes in ecosystem attributes that could be linked to desertification processes in drylands. …”
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Allele mining in the Argentine public maize inbred line collection of two paralogous genes encoding NAC domains por Estermann, M.A., Ugarte, A., Pretini, Nicole, Vega, Claudia Rosa Cecilia, Olmos, Sofía Eugenia

“…The frequency of nucleotide changes at both exons and introns of GRMZM2G179885 and GRMZM2G347043 was lower (1/137 bp-1/83 bp and 1/472 bp-1/51 bp, respectively) than that of other maize genes. …”
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Associative learning of visual cues in the fruit fly parasitoid Diachasmimorpha longicaudata : temporal dynamics and potential consequences on females' fitness por Nussenbaum, Ana Laura, Devescovi, Francisco, Bachmann, Guillermo Enrique, Pacelli, Franco, Garbalena, Micaela Soledad, Segura, Diego Fernando

“…Such colour would allow females to find their host more efficiently, by associating cues that lead to host finding but also modifying their response when the cues are no longer associated with a reward, which seems a reasonable strategy for parasitoids of polyphagous hosts infesting ephemeral and changing habitats, such as fruit of different species.…”
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Site-specific calculation of corn bioethanol carbon footprint with Life Cycle Assessment por Ponieman, Karen Debora, Bongiovanni, Rodolfo, Battaglia, Martín L., Hilbert, Jorge Antonio, Cipriotti, Pablo A., Espósito, Gabriel

“…The LCA methodology follows the ISO 14067:2018 standard and the Intergovernmental Panel on Climate Change (IPCC) guidelines (2019). The R software was used to process the large datasets. …”
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Human-nature interaction approached from a bibliometric analysis of Malthus and Boserup por Leavy, Sebastian, Talamini, Edson

“…The results show the contribution of both authors to contemporary scientific studies on climate change, food security, waste management, among others. …”
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Assessing small RNA profles in potato diploid hybrid and its resynthesized allopolyploid reveals conserved abundance with distinct genomic distribution por Zavallo, Diego, Cara, Nicolás, Leone, Melisa, Crescente, Juan Manuel, Marfil, Carlos Federico, Masuelli, Ricardo Williams, Asurmendi, Sebastian

“…Whole-genome duplication represents a genomic “shock” that can trigger genetic and epigenetic changes that yield novel expression patterns. In this work, we investigate the polyploidization effect on a diploid interspecific hybrid obtained through the cross between the cultivated potato Solanum tuberosum and the wild potato Solanum kurtzianum, by assessing the small RNAs (sRNAs) profile of the parental diploid hybrid and its derived allopolyploid. …”
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Grazing Pressure and Plant Functional Types in Puna Highlands, Northwestern Argentina por Quiroga Mendiola, Mariana, Tálamo, Andrés

“…In summary, our study does not show important changes in Plant Functional Types as a function of grazing pressure in the studied grasslands probably because grazing pressure is diluted or diminished when livestock rotates in different areas and grazing durations vary. …”
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The spatiotemporal stability of plant diversity is disconnected from biomass stability in response to human activities in a South American temperate grassland por Campana, Sofía, Tognetti, Pedro Maximiliano, Alberti, Juan, Graff, Barbara Pamela, Molina, Cecilia D., Silvoso, María Celeste, Yahdjian, Laura

“…However, this measure has been simplistically analyzed for temporal (interannual) changes in live biomass, disregarding their spatial stability and the temporal stability of other plant community attributes. …”
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