Results 61 to 70 of about 128,824 (253)

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

Stable Isotope Compositions of Wild and Farmed S. Paramoamosion and its Implication for Tracebility

Journal of Isotopes, 2014
To evaluate the possibility of using stable isotopes for discriminating wild and farmed mangrove crabs, Stable carbon and nitrogen isotope ratios of Scylla paramamosion tissues were analyzed. The carbon and nitrogen isotope ratios of wild S. paramamosion
GUO Jie-min1,2;LIN Guang-hui1,3
doaj   +1 more source

Seabird Modulations of Isotopic Nitrogen on Islands

PLoS ONE, 2012
The transport of nutrients by migratory animals across ecosystem boundaries can significantly enrich recipient food webs, thereby shaping the ecosystems' structure and function. To illustrate the potential role of islands in enabling the transfer of matter across ecosystem boundaries to be gauged, we investigated the influence of seabirds on nitrogen ...
Caut, Stéphane, Angulo, Elena, Pisanu, Benoît, Ruffino, Lise, Faulquier, Lucie, Lorvelec, Olivier, Chapuis, Jean-Louis, Pascal, Michel, Vidal, Eric, Courchamp, Frank   +9 more
openaire   +10 more sources

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

Long-term carbon and nitrogen dynamics at SPRUCE revealed through stable isotopes in peat profiles [PDF]

, 2017
Peatlands encode information about past vegetation dynamics, climate, and microbial processes. Here, we used δ15N and δ13C patterns from 16 peat profiles to deduce how the biogeochemistry of the Marcell S1 forested bog in northern Minnesota responded to ...
Chen, Janet, Hanson, Paul J., Hobbie, Erik A., Hofmockel, Kirsten S., Iversen, Colleen M., McFarlane, Karis J., Thorp, Nathan R.   +6 more
core   +3 more sources

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

Stable isotopes of Hawaiian spiders reflect substrate properties along a chronosequence. [PDF]

, 2018
The Hawaiian Islands offer a unique opportunity to test how changes in the properties of an isolated ecosystem are propagated through the organisms that occur within that ecosystem.
Dawson, Todd, Gillespie, Rosemary, Kennedy, Susan   +2 more
core   +2 more sources

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

Stable isotopes in diatom silica [PDF]

, 2010
Diatom silica is a form of biogenic opal (SiO2.nH2O, Figure 1) containing oxygen, silicon, carbon and nitrogen isotopes that can be used in lacustrine and marine paleoenvironmental studies.
Leng, Melanie J., Swann, George E.A.
core  

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