Results 31 to 40 of about 2,908,161 (256)

Concentrations and Size Distributions of Bacteria-Containing Particles over Oceans from China to the Arctic Ocean

Atmosphere, 2017
During the third China Arctic Research Expedition (July–September 2008), size-resolved measurements of bacteria-containing particles (BCPs) in the marine boundary layer (MBL) air were conducted during a cruise through the East China Sea, the Yellow Sea ...
Ming Li, Xiawei Yu, Hui Kang, Zhouqing Xie, Pengfei Zhang   +4 more
doaj   +1 more source

Seasonal Changes in Vertical Distribution and Population Structure of the Dominant Hydrozoan Aglantha digitale in the Western Subarctic Pacific

Oceans, 2023
Hydrozoans are numerically dominant taxa in gelatinous zooplankton communities of the worldwide oceans and play an energy transfer role connecting primary producers and higher trophic level organisms. In the western subarctic Pacific, St.
Mari Aizawa, Tian Gao, Atsushi Yamaguchi
doaj   +1 more source

Abundance Analysis of Barium Stars

, 2008
We obtain the chemical abundances of six barium stars and two CH subgiant stars based on the high signal-to-noise ratio and high resolution Echelle spectra. The neutron capture process elements Y, Zr, Ba, La, Eu show obvious overabundance relative to the
Bard, Biémont, Boffin, Boffin, Carquillat, Chen, ESA, Fuhr, Gallino, Griffin, Guo-Qing Liu, Gómez, Han, Jorissen, Jorissen, Kurucz, Lambert, Li-Cai Deng, Liang, Liu, Mennessier, Nissen, Preston, Smith, Weise, Yan-Chun Liang, Yi, Začs, Zhao   +28 more
core   +1 more source

The oxygen abundance calibrations and N/O abundance ratios of ~40,000 SDSS star-forming galaxies [PDF]

, 2006
Using a large sample of 38,478 star-forming galaxies selected from the Second Data Release of the Sloan Digital Sky Survey database (SDSS-DR2), we derive analytical calibrations for oxygen abundances from several metallicity-sensitive emission-line ...
Alloin D., B. Zhang, Edmunds M. G., F. Hammer, H. Flores, L. C. Deng, Matteucci F., Pagel B. E. J., Pagel B. E. J., Pagel B. E. J., Peimbert M., Pilyugin L. S., Renzini A., S. Y. Yin, Seaton M. J., Terlevich R., Thurston T. R., Vila-Costas M. B., Y. C. Liang   +18 more
core   +4 more sources

Geochemical characteristics of rare earth elements in late Palaeozoic coals from North China

Frontiers in Earth Science
Introduction: China is a large country of REE resources and production, supplying more than 90% of the world’s rare earth consumption market, China’s traditional REE resources, although rich, but reserves are also declining, in recent years, scholars ...
Long Wen, Long Wen, Wenhui Huang, Yuanfu Zhang, Bo Jiu   +4 more
doaj   +1 more source

Capitoline Dolphins: Residency Patterns and Abundance Estimate of Tursiops truncatus at the Tiber River Estuary (Mediterranean Sea)

Biology, 2021
Periodic assessments of population status and trends to detect natural influences and human effects on coastal dolphin are often limited by lack of baseline information.
Daniela Silvia Pace, Chiara Di Marco, Giancarlo Giacomini, Sara Ferri, Margherita Silvestri, Elena Papale, Edoardo Casoli, Daniele Ventura, Marco Mingione, Pierfrancesco Alaimo Di Loro, Giovanna Jona Lasinio, Giandomenico Ardizzone   +11 more
doaj   +1 more source

The primordial lithium abundance

, 1996
Lithium abundances in a selected sample of halo stars have been revised by using the new accurate IRFM effective temperatures by Alonso, Arribas & Martinez-Roger (1996a). From 41 plateau stars (Teff > 5700 and [Fe/H]
Bonifacio, Piercarlo, Molaro, Paolo
core   +1 more source

Population Dynamics of Three Polyplacophora Species from the Aegean Sea (Eastern Mediterranean)

Diversity, 2023
The present study is the first to examine spatio-temporal variations in the densities and morphometrics of three shallow water Polyplacophora species (Rhyssoplax olivacea, Acanthochitona fascicularis and Lepidopleurus cajetanus), native to the eastern ...
Anastasios Varkoulis, Konstantinos Voulgaris, Daniil Solonas Zachos, Dimitris Vafidis   +3 more
doaj   +1 more source

Chemical abundances of LINER galaxies – nitrogen abundance estimations

Monthly Notices of the Royal Astronomical Society
ABSTRACT In this work, we investigated the nitrogen and oxygen abundances in a sample of galaxies with Low Ionization Nuclear Emission Regions (LINERs) in their nucleus. Optical spectroscopic data (3600 – 10 000 Å) of 40 LINERs from the Mapping Nearby Galaxies (MaNGAs) survey were considered.
C B Oliveira, Â. C. Krabbe, O. L. Dors, I. A. Zinchenko, J. A. Hernández-Jiménez, M. V. Cardaci, G. F. Hägele, Gabriele S Ilha   +7 more
openaire   +3 more sources

Abundance and diversity of Mollusca in the Beagle Channel

Scientia Marina, 1999
The malacofauna of the Beagle Channel caught by an epibenthic sledge during the Joint Magellan Victor Hensen Campaign in 1994 was investigated. At 11 locations 16 samples were taken on a transect through the Channel.
Katrin Linse
doaj   +1 more source