Resultats globals: 18 registres trobats en 0.02 segons.
Articles, 18 registres trobats
Articles 18 registres trobats  1 - 10següent  anar al registre:
1.
10 p, 4.7 MB Phonon engineering in isotopically disordered silicon nanowires / Mukherjee, S. (Polytechnique Montréal. Département de génie physique) ; Givan, U. (Max-Planck-Institut für Mikrostrukturphysik) ; Senz, S. (Max-Planck-Institut für Mikrostrukturphysik) ; Bergeron, A. (Polytechnique Montréal. Département de génie physiquel) ; Francoeur, S. (Polytechnique Montréal. Département de génie physique) ; De La Mata, Maria (Institut Català de Nanociència i Nanotecnologia) ; Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Sekiguchi, T. (Keio University. Department of Applied Physics and Physico-Informatics) ; Itoh, K.M. (Keio University. Department of Applied Physics and Physico-Informatics) ; Isheim, D. (Northwestern University. Department of Materials Science and Engineering) ; Seidman, D.N. (Northwestern University. Department of Materials Science and Engineering) ; Moutanabbir, O. (Polytechnique Montréal. Département de génie physique)
The introduction of stable isotopes in the fabrication of semiconductor nanowires provides an additional degree of freedom to manipulate their basic properties, design an entirely new class of devices, and highlight subtle but important nanoscale and quantum phenomena. [...]
2015 - 10.1021/acs.nanolett.5b00708
Nano letters, Vol. 15, issue 6 (Oct. 2015) , p. 3885-3893  
2.
24 p, 5.1 MB C and O stable isotopes and rare earth elements in the Devonian carbonate host rock of the Pivehzhan iron deposit, NE Iran. / Najafzadeh Tehrani, P. (University of Tabriz. Department of Earth Sciences) ; Calagari, A.A. (University of Tabriz. Department of Earth Sciences) ; Velasco Roldan, Francisco (Universidad del País Vasco. Departamento de Mineralogía y Petrología) ; Simmonds, V. (University of Tabriz. Research Institute for Fundamental Sciences) ; Siahcheshm, K. (University of Tabriz. Department of Earth Sciences)
The Pivehzhan iron deposit is located at about 80km southwest of Mashhad, NE Iran. It occur within the Devonian carbonates as lenticular and massive bodies, as well as veinlets of magnetite and iron sulphides, transformed to goethite and haematite by weathering process. [...]
2018 - 10.1344/GeologicaActa2018.16.2.2
Geologica acta, Vol. 16 Núm. 2 (June 2018) , p. 125-148 (Articles)  
3.
Trophic ecology of three echinoderms in deep waters of the Weddell Sea (Antarctica) / Rossi, Sergio (Rossi Heras) (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Elias Piera, Francyne (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
In the Southern Ocean, the trophic ecology of deep-sea communities is probably one of the most neglected fields in the discipline. In the present study, the trophic position and energy storage-mobilization of 3 different deep-sea echinoderms living in the Weddell Sea (around 1500 m depth) were investigated with indirect tools (i. [...]
2018 - 10.3354/meps12544
Marine Ecology Progress Series, Vol. 596, (May 2018) , p. 143-153  
4.
15 p, 1.7 MB The effects of fire on ant trophic assemblage and sex allocation / Caut, Stephane (Consejo Superior de Investigaciones Científicas (Espanya). Estación Biológica de Doñana) ; Jowers, Michael J. (Consejo Superior de Investigaciones Científicas (Espanya). Estación Biológica de Doñana) ; Arnan Viadiu, Xavier (Centre de Recerca Ecològica i Aplicacions Forestals) ; Pearce-Duvet, Jessica (Consejo Superior de Investigaciones Científicas (Espanya). Estación Biológica de Doñana) ; Rodrigo Domínguez, Anselm (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Cerdá, Xim (Consejo Superior de Investigaciones Científicas (Espanya). Estación Biológica de Doñana) ; Boulay, Raphaël R. (Universidad de Granada. Departamento de Zoología,)
Fire plays a key role in ecosystem dynamics worldwide, altering energy flows and species community structure and composition. However, the functional mechanisms underlying these effects are not well understood. [...]
2017 - 10.1002/ece3.714
Ecology and evolution, Vol. 4, issue 1 (Jan. 2017) , p. 35-49  
5.
9 p, 459.1 KB Multidecadal ocean variability and NW European ice sheet surges during the last deglaciation / Knutz, Paul C. (Cardiff University. Department of Earth Sciences) ; Hall, Ian R. (Cardiff University. Department of Earth Sciences) ; Zahn, Rainer (Cardiff University. Department of Earth Sciences) ; Rasmussen, Tine L. (University of Svalbard. Department of Geology) ; Kuijpers, Antoon (Geological Survey of Denmark and Greenland) ; Moros, Matthias (Baltic Sea Research Institute (Rostock, Alemanya)) ; Shackleton, Nick J. (University of Cambridge. Department of Earth Sciences)
A multiproxy paleoceanographic record from the Atlantic margin off the British Isles reveals in unprecedented detail discharges of icebergs and meltwater in response to sea surface temperature increases across the last deglaciation. [...]
2002 - 10.1029/2002GC000351
Geochemistry, Geophysics, Geosystems, Vol. 3, issue 12 (Dec. 2002) , p. 1-9  
6.
14 p, 1.2 MB Symbiosis constraints : strong mycobiont control limits nutrient response in lichens / Palmqvist, Kristin (Umeå universitet. Institutionen för ekologi, miljö och geovetenskap) ; Franklin, Oskar (International Institute for Applied Systems Analysis) ; Näsholm. Torgny (Umeå universitet. Institutionen för ekologi, miljö och geovetenskap)
Symbioses such as lichens are potentially threatened by drastic environmental changes. We used the lichen Peltigera aphthosa—a symbiosis between a fungus (mycobiont), a green alga (Coccomyxa sp. ), and N2-fixing cyanobacteria (Nostoc sp. [...]
2017 - 10.1002/ece3.3257
Ecology and evolution, Vol. 7, Issue 18 (Sep. 2017) p. 7420–7433  
7.
9 p, 407.6 KB Taking the trophic bypass : aquatic-terrestrial linkage reduces methylmercury in a terrestrial food web / Bartrons Vilamala, Mireia (Centre de Recerca Ecològica i Aplicacions Forestals) ; Gratton, Claudio (University of Wisconsin. Department of Entomology) ; Spiesman, Brian J. (University of Wisconsin. Department of Entomology) ; Vander Zanden, M. Jake (University of Wisconsin. Department of Limnology)
Ecosystems can be linked by the movement of matter and nutrients across habitat boundaries via aquatic insect emergence. Aquatic organisms tend to have higher concentrations of certain toxic contaminants such as methylmercury (MeHg) compared to their terrestrial counterparts. [...]
2015 - 10.1890/14-0038.1
Ecological Applications, Vol. 25, issue 1 (Jan. 2015) , p. 151–159  
8.
41 p, 629.6 KB The combined effects of a long-term experimental drought and an extreme drought on the use of plant-water sources in a Mediterranean forest / Barbeta i Margarit, Adrià (Centre de Recerca Ecològica i Aplicacions Forestals) ; Mejía Chang, Monica (Centre de Recerca Ecològica i Aplicacions Forestals) ; Ogaya Inurrigarro, Romà (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Voltas, Jordi (Universitat de Lleida. Departament de Producció Vegetal i Ciència Forestal) ; Dawson, Todd E. (University of California, Berkeley. Department of Integrative Biology) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Vegetation in water-limited ecosystems relies strongly on access to deep water reserves to withstand dry periods. Most of these ecosystems have shallow soils over deep groundwater reserves. Understanding the functioning and functional plasticity of species-specific root systems and the patterns of or differences in the use of water sources under more frequent or intense droughts is therefore necessary to properly predict the responses of seasonally dry ecosystems to future climate. [...]
2015 - 10.1111/gcb.12785
Global change biology, Vol. 21, no. 3 (March 2015) , p. 1213-1225  
9.
2.0 MB The trophic ecology of the red swamp crayfish (Procambarus clarkii) in Mediterranean aquatic ecosystems : a stable isotope study / Alcorlo, Paloma ; Baltanás, Angel ; Universidad Autónoma de Madrid. Departamento de Ecología
The red swamp crayfish(Procambarus clarkii)is an invasive species in most of its current distribution range. As an omnivorous species that feeds on items of many trophic levels and is eaten by many others, it occupies a key trophic position within the invaded food webs. [...]
El cangrejo rojo (Procambarus clarkii) es una especie invasora en la mayor parte de su área de distribución actual. Ocupa un estatus trófico clave dentro de las redes tróficas invadidas al ser una especie omnívora que se alimenta de muchos recursos tróficos, además de ser presa de otros consumidores. [...]

2013
Limnética, Vol. 32, Núm. 1 (2013) , p. 121-138
2 documents
10.
2.0 MB Freshwater food web studies: a plea for multiple tracer approach / Soto, David X. (University of New Brunswick (Canada). Department of Biology) ; Gacia, Esperança (Centre for Advanced Studies of Blanes (CEAB-CSIC)) ; Catalan, Jordi (Centre de Recerca Ecològica i Aplicacions Forestals)
Food webs are complex systems of interactions between ecosystem species. Beyond the direct analysis of stomach contents, stable isotopes of carbon (d13C) and nitrogen (d15N) have been used widely to evaluate these trophic relationships and calculate the relative contribution of food sources to a consumer’s diet using mixing models. [...]
Las redes tróficas son sistemas complejos de interacciones entre las especies del ecosistema. Más allá del análisis directo de los contenidos estomacales, los isótopos estables del carbono (d13C) y nitrógeno (d15N) se han utilizado con frecuencia para evaluar las conexiones tróficas y calcular la contribución relativa de cada alimento en la dieta de los consumidores mediante modelos de mezcla. [...]

2013
Limnética, Vol. 32, Núm. 1 (2013) , p. 97-106  

Articles : 18 registres trobats   1 - 10següent  anar al registre:
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