Results 21 to 30 of about 79,825 (49)

Condensation of Rubisco into a proto-pyrenoid in higher plant chloroplasts

open access: yesNature Communications, 2020
Photosynthetic CO2 fixation in plants is limited by the inefficiency of the CO2-assimilating enzyme Rubisco. In most eukaryotic algae, Rubisco aggregates within a microcompartment known as the pyrenoid, in association with a CO2-concentrating mechanism ...
Nicky Atkinson   +3 more
semanticscholar   +1 more source

A Tutorial Introduction to Quantum Circuit Programming in Dependently Typed Proto-Quipper [PDF]

open access: yesInternational Workshop on Reversible Computation, 2020
We introduce dependently typed Proto-Quipper, or Proto-Quipper-D for short, an experimental quantum circuit programming language with linear dependent types.
Peng Fu   +3 more
semanticscholar   +1 more source

Iron isotope evidence for very rapid accretion and differentiation of the proto-Earth

open access: yesScience Advances, 2019
The iron isotope composition of Earth’s mantle requires planetary growth within 5 Ma of solar system formation. Nucleosynthetic isotope variability among solar system objects provides insights into the accretion history of terrestrial planets.
M. Schiller, M. Bizzarro, J. Siebert
semanticscholar   +1 more source

Allosteric activation of proto-oncogene kinase Src by GPCR–beta-arrestin complexes

open access: yesJournal of Biological Chemistry, 2020
G protein–coupled receptors (GPCRs) initiate signaling cascades via G-proteins and beta-arrestins (βarr). βarr-dependent actions begin with recruitment of βarr to the phosphorylated receptor tail and are followed by engagement with the receptor core ...
N. Pakharukova   +4 more
semanticscholar   +1 more source

Ab Antiquo: Neural Proto-language Reconstruction [PDF]

open access: yesNorth American Chapter of the Association for Computational Linguistics, 2019
Historical linguists have identified regularities in the process of historic sound change. The comparative method utilizes those regularities to reconstruct proto-words based on observed forms in daughter languages.
C. Meloni   +2 more
semanticscholar   +1 more source

The progeny of a cosmic titan: a massive multi-component proto-supercluster in formation at z = 2.45 in VUDS [PDF]

open access: yesAstronomy & Astrophysics, 2018
We unveil the complex shape of a proto-supercluster at z ∼ 2.45 in the COSMOS field exploiting the synergy of both spectroscopic and photometric redshifts.
O. Cucciati   +24 more
semanticscholar   +1 more source

Non-Māori-speaking New Zealanders have a Māori proto-lexicon

open access: yesScientific Reports, 2020
We investigate implicit vocabulary learning by adults who are exposed to a language in their ambient environment. Most New Zealanders do not speak Māori, yet are exposed to it throughout their lifetime.
Y. Oh   +5 more
semanticscholar   +1 more source

Hot quark matter and (proto-) neutron stars [PDF]

open access: yesPhysical Review C, 2019
In part one of this paper, we use a non-local extension of the 3-flavor Polyakov-Nambu-Jona-Lasinio model, which takes into account flavor-mixing, momentum dependent quark masses, and vector interactions among quarks, to investigate the possible ...
G. Malfatti   +4 more
semanticscholar   +1 more source

A hierarchical, retinotopic proto-organization of the primate visual system at birth

open access: yeseLife, 2017
The adult primate visual system comprises a series of hierarchically organized areas. Each cortical area contains a topographic map of visual space, with different areas extracting different kinds of information from the retinal input.
Michael Arcaro, M. Livingstone
semanticscholar   +1 more source

Late Eocene onset of the Proto-Antarctic Circumpolar Current

open access: yesScientific Reports, 2019
The formation of the Antarctic Circumpolar Current (ACC) is critical for the evolution of the global climate, but the timing of its onset is not well constrained.
S. Sarkar   +6 more
semanticscholar   +1 more source

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