Results 91 to 100 of about 95,714 (157)

Galactic chemical abundance evolution in the solar neighborhood up to the Iron peak

, 2000
We have developed a detailed standard chemical evolution model to study the evolution of all the chemical elements up to the iron peak in the solar vicinity.
A. Alibés, Abia, Anders, Barbuy, Barbuy, Barbuy, Barbuy, Berczik, Boesgaard, Boissier, Burkert, Buser, Carbon, Carigi, Carretta, Chang, Charbonnel, Chen, Chiappini, Chiappini, Chiappini, Clegg, Dopita, Edmunds, Edvardsson, Forestini, François, François, Garnett, Gay, Gilmore, Giovanoli, Goswami, Gratton, Gratton, Gratton, Gratton, Gratton, Gratton, Greggio, Güsten, Hartmann, Hatano, Heger, Henry, Iben, Israelian, Iwamoto, J. Labay, Jorissen, José, Jørgensen, Kennicutt, Kroupa, Kuijken, Laird, Lambert, Larson, Limongi, Luck, Magain, Magain, Marigo, Massey, Matteucci, Matteucci, McWilliam, McWilliam, Meusinger, Meynet, Mirabel, Mirabel, Mishenina, Méra, Nissen, Nissen, Nomoto, Peterson, Peterson, Portinari, Portinari, Prantzos, Prantzos, Press, R. Canal, Rana, Reid, Reid, Renzini, Robin, Rocha-Pinto, Rocha-Pinto, Romano, Ryan, Ryder, Sackett, Salpeter, Samland, Samland, Scalo, Schaller, Schmidt, Shigeyama, Sneden, Sneden, Sneden, Steinmetz, Stephens, Talbot, Tamman, Thielemann, Thomas, Timmes, Tinsley, Tomkin, Tosi, Twarog, van den Hoek, Wheeler, Woosley, Woosley, Zhao   +121 more
core   +1 more source

Quantifying carbon allocation to mycorrhizal fungi by temperate forest tree species across a nitrogen availability gradient [PDF]

, 2013
Terrestrial ecosystems make up the largest carbon pool with a major portion of that being forests. With carbon being a major concern due to global climate change, being able to make accurate models is increasingly important. Studies have shown that trees
Tumber-Davila, Shersingh Joseph
core   +1 more source

Plio‐Pleistocene denitrification in the eastern tropical North Pacific: Intensification at 2.1 Ma

Geochemistry, Geophysics, Geosystems, 2008
Global climate has changed substantially over the past ∼4 million years (Ma) toward, on average, colder conditions and higher amplitude oscillation between glacial and interglacial periods.
Zhonghui Liu, Mark A. Altabet, Timothy D. Herbert   +2 more
doaj   +1 more source

Land Use Influence on the Characteristics of Groundwater Inputs to the Great Bay Estuary, New Hampshire [PDF]

, 2004
This research examines the sources and factors affecting nutrient-laden groundwater discharge to the Great Bay Estuary. To further understand this relationship, examination of groundwater residence time, a review of historic land uses, and nitrate source
Bacca-Cortes, Gabriel F., Ballestero, Thomas P., Roseen, Robert   +2 more
core   +2 more sources

FIXATION OF ISOTOPIC NITROGEN BY CLOSTRIDIUM [PDF]

Journal of Bacteriology, 1949
E D, ROSENBLUM, P W, WILSON
openaire   +3 more sources

Tracking Agulhas Leakage in the South Atlantic Using Modern Planktic Foraminifera Nitrogen Isotopes

Geochemistry, Geophysics, Geosystems
Seawater transported into the South Atlantic from the Indian Ocean via “Agulhas leakage” modulates global ocean circulation and has been linked to glacial‐interglacial climate cycles. However, constraining past Agulhas leakage has been a challenge.
R. Granger, S. M. Smart, A. Foreman, A. Auderset, E. C. Campbell, T. A. Marshall, G. H. Haug, D. M. Sigman, A. Martínez‐García, S. E. Fawcett   +9 more
doaj   +1 more source

Responses of ectomycorrhizal fungi to changes in carbon and nutrient availability [PDF]

, 2001
Ectomycorrhizal (ECM) fungi may receive 20% of the total C fixed by their host plants and are essential components of host nutrient acquisition. As a consequence of the vast physiological diversity that exists among ECM fungi, changes in community ...
Fransson, Petra M.A.
core  

Shifts in the Efficiency of ¹⁵N-Ammonium Sulfate Fertilization to Sugarcane Varieties Inoculated with Diazotrophic Bacteria

Agronomy
Nitrogen is an essential plant nutrient, but N fertilization contributes to greenhouse gas emissions through its production and application as well as nitrous oxide emissions when applied to soil.
Edevaldo de Castro Monteiro, Carolina Almada Gomes de Oliveira, Cleudison Gabriel Nascimento da Silva, Mayan Blanc Amaral, Veronica Massena Reis, Robert Michael Boddey, Bruno José Rodrigues Alves, Segundo Urquiaga   +7 more
doaj   +1 more source

Nitrification-denitrification in WSP: a mechanism for permanent nitrogen removal in maturation ponds [PDF]

, 2009
A pilot-scale primary maturation pond was spiked with 15N-labelled ammonia (15NH4Cl) and 15N labelled nitrite (Na15NO2), in order to improve current understanding of the dynamics of inorganic nitrogen transformations and removal in WSP systems.
Camargo Valero, M, Curtis, T, Davenport, R, Mara, D, Newton, R, Read L F   +5 more
core  

Nitrogen isotopes [PDF]

Environmental Science & Technology, 2007
openaire   +1 more source