Results 51 to 60 of about 430,581 (306)

Regularity of the Large-Scale Structure of the Universe [PDF]

Symposium - International Astronomical Union, 1999
The observed structure of the Universe is hierarchical. Galaxies and clusters of galaxies are concentrated within elongated filamentary chains of various richness. High-density regions of the Universe form superclusters consisting of one or several clusters of galaxies and chains of galaxies surrounding and joining clusters. The space between filaments
openaire   +3 more sources

Consistency test of general relativity from large scale structure of the Universe [PDF]

, 2009
We construct a consistency test of General Relativity (GR) on cosmological scales. This test enables us to distinguish between the two alternatives to explain the late-time accelerated expansion of the universe, that is, dark energy models based on GR ...
, , A.J.S. Hamilton, B. Jain, E. Bertschinger, H.J. Mo, K. Koyama, K. Koyama, Kazuya Koyama, L. Amendola, M. White, N. Kaiser, S. Capozziello, S. Matarrese, S. Nojiri, Supernova Cosmology Project collaboration, Supernova Search Team collaboration, Y.-S. Song, Y.-S. Song, Y.-S. Song, Yong-Seon Song   +20 more
core   +2 more sources

Observed Evidence for the Primordial Origin of Galaxy Sizes

The Astrophysical Journal
We present observational evidence supporting the scenario that the protogalactic angular momenta play an important role in molding the optical sizes of present galaxies. Analyzing the NASA-Sloan Atlas catalog in the redshift range of 0.02 ≤ z  
Jun-Sung Moon, Jounghun Lee
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

A New Wavelet Scattering Transform-based Statistic for Cosmological Analysis of Large-scale Structure

The Astrophysical Journal
Large-scale structure (LSS) analysis in galaxy surveys is a powerful cosmological probe but is limited by tracer bias, which can obscure underlying information and weaken parameter constraints.
Zhujun Jiang, Xiaolin Luo, Wenying Du, Zhiwei Min, Fenfen Yin, Longlong Feng, Jiacheng Ding, Le Zhang, Xiao-Dong Li   +8 more
doaj   +1 more source

Constraining cosmological ultra-large scale structure using numerical relativity [PDF]

, 2017
Cosmic inflation, a period of accelerated expansion in the early universe, can give rise to large amplitude ultra-large scale inhomogeneities on distance scales comparable to or larger than the observable universe.
Aguirre, Anthony, Braden, Jonathan, Johnson, Matthew C., Peiris, Hiranya V.   +3 more
core   +2 more sources

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

FEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino, Meijie Li, Cécile Fizames, Mattia Adamo, Laurence Lejay, Christian Dubos, Matthieu Platre, Antoine Martin   +7 more
wiley   +1 more source

Large-Scale Structure of the Universe and Cosmological Perturbation Theory [PDF]

, 2001
We review the formalism and applications of non-linear perturbation theory (PT) to understanding the large-scale structure of the Universe. We first discuss the dynamics of gravitational instability, from the linear to the non-linear regime.
Bernardeau, F, Colombi, S, Gaztañaga, E, Scoccimarro, R   +3 more
core   +3 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source