Results 101 to 110 of about 1,179,358 (368)

Nitrogen 15 abundance in protein fractions of beans fertilized with (15NH4)2SO4

Scientia Agricola, 2002
Studies evaluating the protein nutritive value of beans labelled with 15N, ussing nitrogen balance and the quantitation of faecal and urinary endogenous nitrogen, determined by isotopic dilution, have been extensively used. The objective of this research
Chaud Saula Goulart, Oliveira Admar Costa de, Trivelin Paulo César Ocheuze   +2 more
doaj  

Red horizontal branch stars in the Galactic field: A chemical abundance survey

EPJ Web of Conferences, 2013
A large sample survey of Galactic red horizontal-branch (RHB) stars was conducted to investigate their atmospheric parameters and elemental abundances.
Fo B.-Q., Sneden C., Afşar M.
doaj   +1 more source

Early Life Relict Feature in Peptide Mass Distribution [PDF]

, 2008
Molecular mass of a biomolecule is characterized in mass spectroscopy by the monoisitopic mass M~mono~ and the average isotopic mass M~av~. We found that peptide masses mapped on a plane made by two parameters derived from M~mono~ and M~av~ form a ...
Alexander R. Zubarev, Corina Mayrhofer, Eva Y. M. Fung, Konstantin Artemenko, Roman A. Zubarev   +4 more
core   +1 more source

Stratification and Isotope Separation in CP Stars [PDF]

, 2009
We investigate the elemental and isotopic stratification in the atmospheres of selected chemically peculiar (CP) stars of the upper main sequence. Reconfiguration of the UVES spectrograph in 2004 has made it possible to examine all three lines of the Ca ...
Appenzeller, Babcock, Babel, Babel, Bagnulo, Binney, Bohlender, Brage, C. R. Cowley, Castelli, Cowley, Cowley, Cowley, Cowley, Cowley, Dworetsky, Gelbmann, Handler, Hubrig, Hubrig, J. F. González, Kochukhov, Kunzli, Kupka, LeBlanc, Lemke, Lucke, Meléndez, Michaud, Moon, Munari, Nörtershäuser, Paunzen, Preston, Proffitt, Rogers, Ryabchikova, Ryabchikova, Ryabchikova, Ryabchikova, Ryabchikova, S. Hubrig, Sbordone, Schlegel, Sigut, Stehlé, Thiam, Woolf   +47 more
core   +3 more sources

Synthetic Antiferromagnetic Designer Nanodisks for High‐Performance Magnetic Separation

Advanced Healthcare Materials, EarlyView.
Micromagnetic‐modeling‐based design and scalable fabrication of synthetic antiferromagnet (SAF) magnetic disk particles (MDPs) using sputter deposition enable high‐performance magnetic separation. The SAF MDPs achieve high colloidal stability and magnetic responsiveness and enable efficient magnetic separation, outperforming conventional particles ...
Subas Scheibler, Sebastian Habermann, Alexander Gogos, Santiago Helbig, Lukas R. H. Gerken, Anna L. Neuer, Vera M. Kissling, Michal Krupinski, Mohammad Alinezhadfar, Rowena Crockett, Nico Kummer, Erik M. Mayr, Dieter Süss, Hans J. Hug, Inge K. Herrmann   +14 more
wiley   +1 more source

A New Reaction Rate of the 27Al(p,γ)28Si Reaction Based on Indirect Low-energy Cross-section Measurements

The Astrophysical Journal
The Mg–Al cycle is characteristic of the high-temperature ( T  ∼ 0.055 GK) H-burning of evolved stars and their nucleosynthesis. A proper comprehension of this reaction network can help in solving debated questions such as the occurrence of ...
M. La Cognata, S. Palmerini, F. Dell’Agli, P. Ventura, P. Adsley, R. Alba, S. Cherubini, M. Costa, A. Di Pietro, P. Figuera, G. L. Guardo, M. Gulino, F. Hammache, M. La Commara, L. Lamia, D. Lattuada, C. Maiolino, M. Mazzocco, A. Oliva, R. G. Pizzone, P. M. Prajapati, G. G. Rapisarda, S. Romano, D. Santonocito, M. L. Sergi, R. Spartá, A. Tumino   +26 more
doaj   +1 more source

Carbonatites from the Southern Brazilian platform: I

Open Geosciences, 2020
We present a comprehensive overview of the geochemical characteristics and evolution of the carbonatites from the southern Brazilian Platform (Paraná Basin).
Speziale Sergio, Castorina Francesca, Censi Paolo, Gomes Celso de Barros, Marques Leila Soares, Comin-Chiaramonti Piero   +5 more
doaj   +1 more source

Challenging cosmic ray propagation with antiprotons. Evidence for a "fresh" nuclei component?

, 2002
Recent measurements of the cosmic ray (CR) antiproton flux have been shown to challenge existing CR propagation models. It was shown that the reacceleration models designed to match secondary to primary nuclei ratios (e.g., boron/carbon) produce too few ...
Mashnik, S. G., Moskalenko, I. V., Ormes, J. F., Strong, A. W.   +3 more
core   +1 more source

Carbon-rich presolar grains from massive stars : subsolar ¹²C/¹³C and ¹⁴N/¹⁵N ratios and the mystery of ¹⁵N [PDF]

, 2015
Carbon-rich grains with isotopic anomalies compared to the Sun are found in primitive meteorites. They were made by stars, and carry the original stellar nucleosynthesis signature.
Fryer, C., Herwig, F., Hirschi, R., Hoppe, P., J. Jordan, C., K. Gibson, B., Pignatari, M., Trappitsch, R., X. Timmes, F., Zinner, E.   +9 more
core   +3 more sources

ROS‐Scavenging Multifunctional Microneedle Patch Facilitating Wound Healing

Advanced Healthcare Materials, EarlyView.
A reactive oxygen species (ROS) scavenging and immunomodulatory microneedle patch based on hyaluronic acid methacrylate (HaMA) and Flightless I (Flii)‐siRNA‐laden arginine functionalized poly (β‐amino ester)/alginate particles is developed for chronic wound healing applications.
Mahshid Kharaziha, Sahar Salehi, Mahshid Shokri, Seyed Mohsen Ahmadi Tafti, Thomas Scheibel   +4 more
wiley   +1 more source