Results 61 to 70 of about 95,714 (157)

Evapotranspiration and water use efficiency in relation to climate and canopy nitrogen in U.S. forests [PDF]

, 2016
Understanding relations among forest carbon (C) uptake and water use is critical for predicting forest-climate interactions. Although the basic properties of tree-water relations have long been known, our understanding of broader-scale patterns is ...
Anav, Atkin, Badeck, Baldocchi, Baldocchi, Baldocchi, Baldocchi, Baldocchi, Barbour, Barbour, Barbour, Barnard, Beer, Belmecheri, Berry, Betts, Bolster, Bonan, Bonan, Bright, Brugnoli, Buckley, Canadell, Carnicer, Catovsky, Cernusak, Chen, Clark, Craig, Davin, Desai, Dickinson, Dongmann, Donovan, Dore, Evans, Ewers, Farquhar, Farquhar, Farquhar, Farquhar, Farquhar, Federer, Fernández-Martínez, Fernández-Martínez, Flanagan, Flexas, Gessler, Gessler, Grams, Grassi, Guerrieri, Heimann, Jennings, Keenan, Keitel, Kergoat, Kunert, Law, Lee, Leonelli, Lepine, Liang, Loescher, Luyssaert, Lévesque, Magnani, Martin, Martínez-Vilalta, Meinzer, Meir, Michelot, Moffat, Monson, Moreno-Gutiérrez, Niinemets, Niu, Ollinger, Ollinger, Pan, Pan, Papale, Paquette, Ponton, Post, Potter, Powell, Reichstein, Reichstein, Renninger, Richardson, Ripullone, Roden, Roden, Roden, Roman, Sage, Scartazza, Scheidegger, Schulze, Seibt, Siegwolf, Smith, Smith, Song, Sullivan, Tang, Tang, Tardieu, Valentini, Valentini, Wang, Warren, Wehr, Wright, Xiao, Xiao, Xu, Zhang, Zhu   +119 more
core   +3 more sources

Chiral three-nucleon forces and the evolution of correlations along the oxygen isotopic chain [PDF]

, 2015
The impact of three-nucleon forces (3NFs) along the oxygen chain is investigated for the spectral distribution for attachment and removal of a nucleon, spectroscopic factors and matter radii. We employ self-consistent Green's function (SCGF) theory which
Barbieri, C., Cipollone, A., Navrátil, P.   +2 more
core   +2 more sources

Sulphur-isotope compositions of pig tissues from a controlled feeding study [PDF]

, 2017
Sulphur-isotope determinations are becoming increasingly useful for palaeodietary reconstruction, but knowledge of isotopic discrimination between diet and various tissues remains inadequate. In this study, we explore the sensitivity of δ34Stissue values
Evershed, Richard P., Lewis, Jamie, Miller, Bevis, Newton, Jason, Stewart, Alan, Tarlton, John F., Webb, Emily C.   +6 more
core   +2 more sources

Tracking sources and fate of groundwater nitrate in Kisumu City and Kano Plains, Kenya [PDF]

, 2020
Groundwater nitrate (NO3−) pollution sources and in situ attenuation were investigated in Kisumu city and Kano plains. Samples from 62 groundwater wells consisting of shallow wells (hand dug, depth 15 m) were obtained during wet (May–July 2017) and dry ...
Boeckx, Pascal, Mureithi, Stephen, Nyilitya, Benjamin   +2 more
core   +1 more source

MESMO global model output for glacial simulations with dynamic C:N:P ratios [PDF]

, 2020
Dataset: MESMO glacial CNPModel outputs archived have a complete suite of biogeochemical state variables in the 3D global ocean domain. They include temperature, salinity, nutrients (PO4, NO3, Fe, Si), carbon pools and their isotopes (DIC, DOC, POC, 13C ...
Matsumoto, Katsumi
core   +1 more source

NITROGEN ISOTOPE ABUNDANCE MEASUREMENTS

, 1958
The abundance of the nitrogen isotopes in several source of nitrogen has been determined. In atmospheric nitrogen the absolute ratio, N/sup 14//N/sup 15/ , is 272.0 plus or minus 0.3. Small variations were observed for various sources of compressed gas, but the isotopic composition of the nitrogen isotopes of the atmosphere was constant (to 1 part in ...
G Junk, H Svec
openaire   +2 more sources

Is What Comes out the Same as What Goes in? A Preliminary Investigation of the Isotopic Impacts of Digestion by Red‐Tailed Hawks (Buteo jamaicensis) and Eurasian Eagle Owls (Bubo bubo)

Ecology and Evolution
We investigated isotopic diet‐excreta offset (Δdiet‐excreta) for predatory birds, and the isotopic influence of bird digestion on consumed prey tissues.
Brooke Erin Crowley, Madison Laurel Greenwood, Rachel Elizabeth Brown Reid   +2 more
doaj   +1 more source

Diet uniformity at an early farming community in northwest Anatolia (Turkey) : carbon and nitrogen isotope studies of bone collagen at Aktopraklik [PDF]

, 2017
Aktopraklık is a settlement site composed of three areas (A–C) in the Marmara region of northwest Anatolia, with phases of occupation that date to the Late Neolithic and Early Chalcolithic periods, mid-seventh to mid-sixth millennium bc (ca.
Alpaslan-Roodenberg, Songül, Budd, Chelsea, Galik, Alfred, Karul, Necmi, Lillie, Malcolm, Schulting, Rick   +5 more
core   +1 more source

Nitrogen isotope variations in the Solar System [PDF]

Nature Geoscience, 2015
The solar wind, cometary ices, and inner Solar System bodies exhibit distinct nitrogen isotopic compositions. A synthesis of these analyses suggests that these distinct reservoirs may be the result of early fractionation processes.
Füri, Evelyn, Marty, Bernard
openaire   +2 more sources

85Kr and 39Ar background in GENIUS

, 2003
GENIUS is a proposal for a large scale detector of rare events like double beta decay, cold dark matter and low-energy solar neutrinos in real time. The idea of GENIUS is to operate a large amount of ``naked'' Ge detectors in liquid nitrogen, with the ...
Baudis, Baudis, C Tomei, Firestone, H.V Klapdor Kleingrothaus, Klapdor-Kleingrothaus, Klapdor-Kleingrothaus, Klapdor-Kleingrothaus, Klapdor-Kleingrothaus, Tsoulfanidis   +9 more
core   +1 more source