Mechanism for the Coupled Photochemistry of Ammonia and Acetylene: Implications for Giant Planets, Comets and Interstellar Organic Synthesis [0.03%]
氨和乙炔的耦合光化学机制：巨行星、彗星和星际有机合成的意义
Thomas C Keane
Thomas C Keane
Laboratory studies provide a fundamental understanding of photochemical processes in planetary atmospheres. Photochemical reactions taking place on giant planets like Jupiter and possibly comets and the interstellar medium are the subject o...
Polycondensation of Asparagine-comprising Dipeptides in Aqueous Media-A Simulation of Polypeptide Formation in Primordial Earth Hydrosphere [0.03%]
天球水相中天冬酰胺二肽的聚缩合反应—地球初始海洋中多肽形成机制的模型研究
Toratane Munegumi,Naoya Tanikawa
Toratane Munegumi
Asparagine and aspartic acid might have mutually transformed in the primordial hydrosphere of the earth, if ammonia and aspartic acid had existed in equilibrium. These amino acids seem to contribute to polypeptides, while the simple amino a...
Arsev Umur Aydinoglu,Zehra Taşkın
Arsev Umur Aydinoglu
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...
Enantiomer-Selective Photo-Induced Reaction of Protonated Tryptophan with Disaccharides in the Gas Phase [0.03%]
气相中脯氨酸质子与双糖的旋光异构体选择性光反应
Thuc N Doan,Akimasa Fujihara
Thuc N Doan
In order to investigate chemical evolution in interstellar molecular clouds, enantiomer-selective photo-induced chemical reactions between an amino acid and disaccharides in the gas phase were examined using a tandem mass spectrometer conta...
Environmental Adaptation from the Origin of Life to the Last Universal Common Ancestor [0.03%]
从生命起源到最晚普世共同祖先的环境适应性
Marjorie D Cantine,Gregory P Fournier
Marjorie D Cantine
Extensive fundamental molecular and biological evolution took place between the prebiotic origins of life and the state of the Last Universal Common Ancestor (LUCA). Considering the evolutionary innovations between these two endpoints from ...
Gabriel S Zamudio,Marco V José
Gabriel S Zamudio
The decipherment of the tRNA's operational code, known as the identity problem, requires the location of the sites in the tRNA structure that are involved in their correct recognition by the corresponding aminoacyl-tRNA synthetase. In this ...
Survival and Adaptation of the Thermophilic Species Geobacillus thermantarcticus in Simulated Spatial Conditions [0.03%]
地热南极芽孢杆菌在模拟空间条件下的生存和适应性研究
Paola Di Donato,Ida Romano,Vincenza Mastascusa et al.
Paola Di Donato et al.
Astrobiology studies the origin and evolution of life on Earth and in the universe. According to the panspermia theory, life on Earth could have emerged from bacterial species transported by meteorites, that were able to adapt and prolifera...
Yoshihiro Furukawa,Atsushi Takase,Toshimori Sekine et al.
Yoshihiro Furukawa et al.
Homochirality plays an important role in all living organisms but its origin remains unclear. It also remains unclear whether such chiral molecules survived terrestrial heavy impact events. Impacts of extraterrestrial objects on early ocean...
Mohammad P Jamshidi,Melissa J MacDonald,André M Beauchemin
Mohammad P Jamshidi
The low concentration issue is a fundamental challenge when it comes to prebiotic chemistry, as macromolecular systems need to be assembled via intermolecular reactions, and this is inherently difficult in dilute solutions. This is especial...