Results 31 to 40 of about 7,483,100 (196)

Chemical evolution of a protoplanetary disk [PDF]

, 2011
In this paper we review recent progress in our understanding of the chemical evolution of protoplanetary disks. Current observational constraints and theoretical modeling on the chemical composition of gas and dust in these systems are presented.
Agúndez, Aikawa, Bergin, Bisschop, Bouvier, Bradley, Brownlee, d'Hendecourt, Dartois, Dmitry A. Semenov, Dutrey, Dutrey, Dutrey, Gail, Gail, Guilloteau, Güdel, Habart, Habing, Hartquist, Hersant, Ilgner, Keller, Lee, Leger, Lin, Markwick, Nomura, Panić, Piétu, Piétu, Semenov, Semenov, Shakura, Thi, Tielens, Tscharnuter, van den Ancker, van der Plas, van Dishoeck, van Zadelhoff, Visser, Visser, Wehrstedt, Williams, Woodall, Öberg   +46 more
core   +1 more source

Molecules to Microbes

Sci, 2020
How did life begin on Earth? And is there life elsewhere in the Cosmos? Challenging questions, indeed. The series of conferences established by NoR CEL in 2013 addresses these very questions.
Sohan Jheeta
doaj   +1 more source

A small molecule screen identifies novel inhibitors of mechanosensory nematocyst discharge in Hydra

Scientific Reports, 2021
Cnidarians are characterized by the possession of stinging organelles, called nematocysts, which they use for prey capture and defense. Nematocyst discharge is controlled by a mechanosensory apparatus with analogies to vertebrate hair cells.
Diana Hofmann, Niharika Garg, Simone Grässle, Sylvia Vanderheiden, Bruno Gideon Bergheim, Stefan Bräse, Nicole Jung, Suat Özbek   +7 more
doaj   +1 more source

Towards Bioleaching of a Vanadium Containing Magnetite for Metal Recovery

Frontiers in Microbiology, 2021
Vanadium – a transition metal – is found in the ferrous-ferric mineral, magnetite. Vanadium has many industrial applications, such as in the production of high-strength low-alloy steels, and its increasing global industrial consumption requires new ...
Sören Bellenberg, Stephanie Turner, Laura Seidel, Nathan van Wyk, Ruichi Zhang, Varvara Sachpazidou, Rodrigo F. Embile, Ingar Walder, Tiina Leiviskä, Mark Dopson   +9 more
doaj   +1 more source

Chemical Evolution of the Juvenile Universe [PDF]

, 2009
Only massive stars contribute to the chemical evolution of the juvenile universe corresponding to [Fe/H]
Barklem, Burbidge, Cayrel, François, G. J. Wasserburg, Hill, Käppeler, Qian, Woosley, Y.-Z. Qian   +9 more
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Developmental transcriptomics of the brittle star Amphiura filiformis reveals gene regulatory network rewiring in echinoderm larval skeleton evolution

Genome Biology, 2018
Background Amongst the echinoderms the class Ophiuroidea is of particular interest for its phylogenetic position, ecological importance and developmental and regenerative biology.
David V. Dylus, Anna Czarkwiani, Liisa M. Blowes, Maurice R. Elphick, Paola Oliveri   +4 more
doaj   +1 more source

Chemical evolution of the Galactic Center [PDF]

, 2015
In recent years, the Galactic Center (GC) region (200 pc in radius) has been studied in detail with spectroscopic stellar data as well as an estimate of the ongoing star formation rate. The aims of this paper are to study the chemical evolution of the GC
Grieco, V., Matteucci, F., Ryde, N., Schultheis, M., Uttenthaler, S.   +4 more
core   +2 more sources

The copper transport-associated protein Ctr4 can form prion-like epigenetic determinants in Schizosaccharomyces pombe

Microbial Cell, 2017
Prions are protein-based infectious entities associated with fatal brain diseases in animals, but also modify a range of host-cell phenotypes in the budding yeast, Saccharomyces cerevisiae. Many questions remain about the evolution and biology of prions.
Theodora Sideri, Yoko Yashiroda, David A. Ellis, María Rodríguez-López, Minoru Yoshida, Mick F. Tuite, Jürg Bähler   +6 more
doaj   +1 more source

Hypernova Nucleosynthesis and Galactic Chemical Evolution [PDF]

, 2001
We study nucleosynthesis in 'hypernovae', i.e., supernovae with very large explosion energies ($ \gsim 10^{52} $ ergs) for both spherical and aspherical explosions.
AI Macfadyen, AM Khokhlov, B Paczynski, C Sneden, D Argast, F-K Thielemann, G Nelemans, H Umeda, H Umeda, I Hachisu, I Hachisu, J Sollerman, K Iwamoto, K Iwamoto, K Iwamoto, K Maeda, K Maeda, K Nomoto, K Nomoto, K Nomoto, LAJ Blake, LM Germany, M Hashimoto, Nakamura, P Podsiadlowski, PA Mazzali, S Nagataki, SG Ryan, Shigeyama. T., amp Tsujimoto, T, TG Tsuru, V Bromm, WD Arnett, WN Brandt   +32 more
core   +2 more sources

Modelling the chemical evolution

, 2010
Advanced observational facilities allow to trace back the chemical evolution of the Universe, on the one hand, from local objects of different ages and, secondly, by direct observations of redshifted objects.
Argast, Cescutti, Chiappini, Colavitti, Gerhard Hensler, Harfst, Hensler, Hensler, Hensler, Hensler, Hirschi, Ikuta, Koch, Koeppen, Koeppen, Kroeger, Maciel, Maeder, Matteucci, Meynet, Meynet, Meynet, Momany, Nordstroem, Pagel, Pagel, Portinari, Portinari, Prantzos, Prantzos, Recchi, Recchi, Recchi, Recchi, Revaz, Samland, Schaller, Simone Recchi, Spitoni, Theis, Tinsley   +40 more
core   +1 more source