Results 71 to 80 of about 27,504 (316)

Setting the geological scene for the origin of life and continuing open questions about its emergence

Frontiers in Astronomy and Space Sciences, 2023
The origin of life is one of the most fundamental questions of humanity. It has been and is still being addressed by a wide range of researchers from different fields, with different approaches and ideas as to how it came about.
Frances Westall, André Brack, Alberto G. Fairén, Alberto G. Fairén, Mitchell D. Schulte   +4 more
doaj   +1 more source

From Cosmos to Intelligent Life: The Four Ages of Astrobiology

, 2012
The history of life on Earth and in other potential life-bearing planetary platforms is deeply linked to the history of the universe. Since life as we know it relies on chemical elements forged in dying heavy stars, the universe needs to be old enough ...
Abel, Arrhenius, Bonner, Fenchel, Fitz, Gleiser, Kaltenegger, Lunine, Marcelo Gleiser, Oparin, Prigogine, Salama, Smoot, Susskind, Susskind, Ward, Webb, Weinberg   +17 more
core   +1 more source

Open Prebiotic Environments Drive Emergent Phenomena and Complex Behavior

Life, 2019
We have been studying simple prebiotic catalytic replicating networks as prototypes for modeling replication, complexification and Systems Chemistry. While living systems are always open and function far from equilibrium, these prebiotic networks may be ...
Nathaniel Wagner, David Hochberg, Enrique Peacock-Lopez, Indrajit Maity, Gonen Ashkenasy   +4 more
doaj   +1 more source

On the formation of glycolaldehyde in dense molecular cores [PDF]

, 2012
Glycolaldehyde is a simple monosaccharide sugar linked to prebiotic chemistry. Recently, it was detected in a molecular core in the star-forming region G31.41+0.31 at a reasonably high abundance.
Beltrán, Ben Slater, Bennett, Bennett, Bergin, Butlerow, Cazaux, Charnley, Collins, Daren J. Burke, Fabrizio Puletti, Garrod, George Kelly, Halfen, Hidaka, Hollis, Kaiser, Laas, Lai, Leitch-Devlin, Molinari, Paul M. Woods, Remijan, Serena Viti, Sofia, Sorrell, Tielens, Watanabe, Watanabe, Watanabe, Wendy A. Brown, Woon, Zamaan Raza   +32 more
core   +2 more sources

Fibers as Oleogelators: Innovations, Applications, and Future Prospects in Structured Lipid Systems

Journal of the American Oil Chemists' Society, EarlyView.
Schematic overview of fiber‐based oleogelation mechanisms, processing routes, and food applications highlighting particulate/capillary structuring, polymer entanglement, and emulsion‐templated approaches. ABSTRACT Oleogels, structured oil systems created with low levels of gelators‐enables solid fat functionality while preserving the underlying liquid ...
P. Abdul Wahid, Rajni Chopra, Nitin Kumar, Monika Chand, Aishwarya Dhiman, Rajat Singh   +5 more
wiley   +1 more source

A prebiotic basis for ATP as the universal energy currency

PLoS Biology, 2022
ATP is universally conserved as the principal energy currency in cells, driving metabolism through phosphorylation and condensation reactions. Such deep conservation suggests that ATP arose at an early stage of biochemical evolution. Yet purine synthesis
Silvana Pinna, Cäcilia Kunz, Aaron Halpern, Stuart A. Harrison, Sean F. Jordan, John Ward, Finn Werner, Nick Lane   +7 more
doaj  

The Role of State-of-the-Art Quantum-Chemical Calculations in Astrochemistry: Formation Route and Spectroscopy of Ethanimine as a Paradigmatic Case

Molecules, 2020
The gas-phase formation and spectroscopic characteristics of ethanimine have been re-investigated as a paradigmatic case illustrating the accuracy of state-of-the-art quantum-chemical (QC) methodologies in the field of astrochemistry.
Carmen Baiano, Jacopo Lupi, Nicola Tasinato, Cristina Puzzarini, Vincenzo Barone   +4 more
doaj   +1 more source

Hydrogel Composites and Their Potential Application in Animal Production and Health

Animal Research and One Health, EarlyView.
With emerging concerns about environmental contamination and safe animal production practices for increased animal welfare, research has increased in search of alternatives to promote sustainable production. The application of naturally derived hydrogels presents a great opportunity for exploration and application for animal production purposes ...
Victoria Anthony Uyanga, Tolulope Grace Ogundipe, Onome Ejeromedoghene, Abigail Adamma Ere‐Richard, Edikan Effiong Okon   +4 more
wiley   +1 more source

Effects of Lycium barbarum Residue Substituting Dietary Maize on Fecal Microbiota and Growth Performance of Crossbred Simmental Cattle

Animal Research and One Health, EarlyView.
The bioactive substances we extracted from Lycium barbarum residue (LBR) have a typical polysaccharide structure. When 1.80% LBR was used to replace maize in the diet, the average daily gain of rossbred Simmental was significantly increased, and anti‐inflammatory ability was improved. In addition, LBR improved the fecal microbial composition, increased
Kun Cai, Mingtan Li, Lihang He, Ning Ma, Haoyu Liu, Chi Xu, Xianhua Wu, Zeguang Xing, Qian Xing, Yuankai Qu, Xi Ma   +10 more
wiley   +1 more source

Chirality in Organic and Mineral Systems: A Review of Reactivity and Alteration Processes Relevant to Prebiotic Chemistry and Life Detection Missions [PDF]

, 2022
Carina Lee, Jessica M. Weber, Laura E. Rodriguez, Rachel Y. Sheppard, Laura M. Barge, E. L. Berger, Aaron S. Burton   +6 more
openalex   +1 more source