Results 41 to 50 of about 167,907,926 (289)
Background We hypothesize prebiotic evolution of self-replicating macro-molecules (Alberts, Molecular biology of the cell, 2015; Orgel, Crit Rev Biochem Mol Biol 39:99-123, 2004; Hud, Nat Commun 9:5171) favoured the constituent nucleotides and ...
Hemachander Subramanian +2 more
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The building blocks and origins of life
The building blocks and origins of life have fascinated scientists since the earliest of times. What is required for life to work in terms of building blocks?
Dirk U. Bellstedt
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Chair of landscape architecture : Estonian University of Life Sciences [PDF]
BookWelcome to the chair of Landscape Architecture at the Estonian University of Life Sciences. This book has been prepared as an introduction to our chair and should give you an insight into our teaching programme and examples of students’ works ...
Estonian University of Life Sciences. Chair of Landscape Architecture
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Autonomous and interconnected multiscale out-of-equilibrium processes, including chemical and physical feedbacks, occur at the micron and lower scales during the heterotrophic synthesis of simple abiotic protocells, such as the ones developed in our ...
Chenyu Lin, Juan Pérez-Mercader
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Background: The coronavirus 2019 (COVID-19) pandemic fundamentally changed how populations interface with the healthcare system. Despite historical spikes in US mortality during the pandemic, emergency department (ED) visits were paradoxically low.
Valerie Osula +9 more
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Systems Analysis for Peptide Systems Chemistry
Living systems employ both covalent chemistry and physical assembly to achieve complex behaviors. The emerging field of systems chemistry, inspired by these biological systems, attempts to construct and analyze systems that are simpler than biology ...
Martha A. Grover +2 more
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Transitioning to DNA genomes in an RNA world
The unexpected ability of an RNA polymerase ribozyme to copy RNA into DNA has ramifications for understanding how DNA genomes evolved.
Razvan Cojocaru, Peter J Unrau
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Prebiotic Synthesis of Aspartate Using Life’s Metabolism as a Guide
A protometabolic approach to the origins of life assumes that the conserved biochemistry of metabolism has direct continuity with prebiotic chemistry. One of the most important amino acids in modern biology is aspartic acid, serving as a nodal metabolite
Stuart A. Harrison +3 more
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ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
The partial skeleton of a new extinct taxon, Linxiavis inaquosus, from the Liushu Formation (6–9 Ma) at the edge of the Tibetan Plateau in Gansu Province, China is the most substantial known fossil record of sandgrouse (Pteroclidae).
Zhiheng Li +8 more
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