Results 71 to 80 of about 361,547 (333)
Formamide and the origin of life [PDF]
Physics of Life Reviews, 2012 The complexity of life boils down to the definition: "self-sustained chemical system capable of undergoing Darwinian evolution" (Joyce, 1994) [1]. The term "self-sustained" implies a set of chemical reactions capable of harnessing energy from the environment, using it to carry out programmed anabolic and catabolic functions.
Raffaele Saladino +4 more
openaire +8 more sources
Comets and life in the universe [PDF]
, 1994 The notion that comets supplied the primitive Earth with the requisite chemical species for the process of chemical evolution, which is widely held to have led to the origin of life on Earth, has now gained considerable intellectual momentum since its ...
Lazcano Araujo Reyes, Antonio Eusebio +5 more
core +1 more source
Diet of the earliest modern humans in East Asia
Frontiers in Plant Science, 2022 Reconstructing diet can offer an improved understanding toward the origin and evolution of modern humans. However, the diet of early modern humans in East Asia is poorly understood.
Yan Wu +7 more
doaj +1 more source
Algumas controvérsias sobre a origem da vida Some controversies on the origin of life
Química Nova, 2008 In the present paper some controversies on the origin of life are discussed. Did the first living beings on Earth have an autotrophic or heterotrophic origin? What did come first, genetic code or metabolism? Were cells invented early?
Dimas A. M. Zaia +1 more
doaj +1 more source
BMC Evolutionary Biology, 2020 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
doaj +1 more source
Origins of Life Research: a Bibliometric Approach
Origins of Life and Evolution of Biospheres, 2017 This study explores the collaborative nature and interdisciplinarity of the origin(s) of life (OoL) research community. Although OoL research is one of the oldest topics in philosophy, religion, and science; to date there has been no review of the field ...
A. Aydınoğlu, Zehra Taşkın
semanticscholar +1 more source
The building blocks and origins of life
HTS Teologiese Studies/Theological Studies, 2020 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
doaj +1 more source
A fetus in the world: Physiology, epidemiology, and the making of fetal origins of adult disease [PDF]
, 2023 Since the late 1980s, the fetal origins of adult disease, from 2003 developmental origins of health and disease (DOHaD), has stimulated significant interest in and an efflorescence of research on the long-term effects of the intrauterine environment ...
Al-Gailani, Salim, Buklijas, Tatjana
core +1 more source
Systems Analysis for Peptide Systems Chemistry
Life, 2019 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
doaj +1 more source
Western Journal of Emergency Medicine, 2023 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
doaj +1 more source