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2006 •
2018 •
Origins of Life and Evolution of the Biosphere
Hydrothermal and oceanic pH conditions of possible relevance to the origin of life1994 •
Geophysical Research Letters
Search for past life on Mars: Physical and chemical characterization of minerals of biotic and abiotic origin: 2. Aragonite2007 •
2018 •
In 2001, the first author (S.N.) led the publication of a book entitled “Geochemistry and the origin of life” in collaboration with Dr. Andre Brack aiming to figure out geo- and astro-chemical processes essential for the emergence of life. Since then, a great number of research progress has been achieved in the relevant topics from our group and others, ranging from the extraterrestrial inputs of life’s building blocks, the chemical evolution on Earth with the aid of mineral catalysts, to the fossilized records of ancient microorganisms. Here, in addition to summarizing these findings for the origin and early evolution of life, we propose a new hypothesis for the generation and co-evolution of photosynthesis with the redox and photochemical conditions on the Earth’s surface. Besides these bottom-up approaches, we introduce an experimental study on the role of water molecules in the life’s function, focusing on the transition from live, dormant, and dead states through dehydration/hy...
Philosophical Transactions of the Royal Society B: Biological Sciences
Serpentinite and the dawn of life2011 •
Submarine hydrothermal vents above serpentinite produce chemical potential gradients of aqueous and ionic hydrogen, thus providing a very attractive venue for the origin of life. This environment was most favourable before Earth's massive CO 2 atmosphere was subducted into the mantle, which occurred tens to approximately 100 Myr after the moon-forming impact; thermophile to clement conditions persisted for several million years while atmospheric pCO 2 dropped from approximately 25 bar to below 1 bar. The ocean was weakly acid (pH ∼ 6), and a large pH gradient existed for nascent life with pH 9–11 fluids venting from serpentinite on the seafloor. Total CO 2 in water was significant so the vent environment was not carbon limited. Biologically important phosphate and Fe(II) were somewhat soluble during this period, which occurred well before the earliest record of preserved surface rocks approximately 3.8 billion years ago (Ga) when photosynthetic life teemed on the Earth and the o...
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Los Mozárabes: pasado, presente y futuro de las comunidades cristianas bajo dominio islámico. II Congreso Internacional sobre Historia de los Mozárabes
La romanización del santoral hispano-mozárabe en la España de los siglos XII-XV2023 •
Journal of Pharmacognosy and Phytochemistry
Nutrient enhancement and growth promotion of wheat cultivars by native plant growth promoting bacteria from Punjab state, India2019 •
2013 •
CardioVascular and Interventional Radiology
Percutaneous Transluminal Angioplasty of Dysplastic Stenoses of the Renal Artery: Results on 70 Adults2003 •
2016 •
2020 •
Journal of Occupational and Environmental Medicine
Physical Work Demands and Physical Fitness in Low Social Classes—30-Year Ischemic Heart Disease and All-Cause Mortality in The Copenhagen Male Study2011 •
Journal of Thoracic Oncology
P2.05-18 Tissue Sampling and Prognostic Biomarkers Analysis of Peripheral Lung Tumors Using R-EBUS. Single Centre Retrospective Study2019 •
2015 •
2014 •
2017 •
Asian Journal of Probability and Statistics
Statistical Measure of Second Order Response Surface Rotatability Using an Infinite Class of Supplementary Difference Sets2019 •
PHYSIOLOGY AND …
The Effect of Intrahippocampal Injection of Ascorbic Asid on Spatial Learning and Memory in Adult Male Rats2010 •
2011 •
Uluslararası İktisadi ve İdari İncelemeler Dergisi
COST-EFFECTIVENESS ANALYSIS (CEA) OF A TOBACCO INITIATION INTERVENTION FOR COLLEGE STUDENTS IN TÜRKİYE2024 •
Call Girls in Preet Vihar
Preet Vihar Call Girls : ((9560266914)) Low rate call girl serviceRevista Electrónica de Estudios Internacionales
Crónica de hechos internacionales (enero - junio 2014)2014 •