Results 11 to 20 of about 64,276 (302)

Automated Exploration of Prebiotic Chemical Reaction Space: Progress and Perspectives

open access: yesLife, 2021
Prebiotic chemistry often involves the study of complex systems of chemical reactions that form large networks with a large number of diverse species.
Siddhant Sharma   +3 more
doaj   +1 more source

Environmental Stability and Its Importance for the Emergence of Darwinian Evolution

open access: yesLife, 2023
The emergence of Darwinian evolution represents a central point in the history of life as we know it. However, it is generally assumed that the environments in which life appeared were hydrothermal environments, with highly variable conditions in terms ...
Khushi R. Daga   +4 more
doaj   +1 more source

The Effects of Iron on In Silico Simulated Abiotic Reaction Networks

open access: yesMolecules, 2022
Iron is one of the most abundant elements in the Universe and Earth’s surfaces, and undergoes a redox change of approximately 0.77 mV in changing between its +2 and +3 states.
Sahil Rajiv Shahi, H. James Cleaves
doaj   +1 more source

Applying Novel Techniques from Physical and Biological Sciences to Life Detection

open access: yesSpace: Science & Technology, 2023
One of the primary goals of the space exploration community is to unambiguously detect past or present life outside of Earth. As such, a number of so-called life detection technologies, instruments, and approaches have been applied as part of past ...
Tony Z. Jia   +13 more
doaj   +1 more source

A global network model of abiotic phosphorus cycling on Earth through time

open access: yesScientific Reports, 2022
Phosphorus (P) is a crucial structural component of living systems and central to modern bioenergetics. P cycles through terrestrial geochemical reservoirs via complex physical and chemical processes.
Marcos Jusino-Maldonado   +5 more
doaj   +1 more source

Respiratory system symptoms in marble quarry and marble factory workers

open access: yesMedicine Science, 2022
In this study, respiratory system symptoms developed in workers working in 35 marble factories, 20 marble quarries in Afyonkarahisar İscehisar region were examined and compared.
Suphi Aydin, Ahmet Dumanli
doaj   +1 more source

Marble quarries in Delos Island (Greece): a geological characterization

open access: yesBSGF - Earth Sciences Bulletin, 2022
Traces of extraction in Delian marble quarries attest their exploitation during Antiquity. A preliminary non-destructive provenance study confirmed the presence of indigenous marble in Delos constructions. In contrast, Delos marble quarries have not been
Vettor Tommy   +4 more
doaj   +1 more source

Marble as votive offering? Social agency in the post‑Classical Levant [PDF]

open access: yesPolish Archaeology in the Mediterranean, 2023
This paper combines archaeology and written sources to examine the ways in which marble was used in the churches of the southern Levant in Late Antiquity.
Basema Hamarneh
doaj   +1 more source

ARTICLES, REPORTS AND SPEECHES, 1998-2008 - Lectures - Marble/Fairbank Lecture, 2004

open access: yes, 2016
Lecture from Scott Marble and Karen Fairbank on March 15, 2004.http://deepblue.lib.umich.edu/bitstream/2027.42/118144/2/39015094711721.mp4http://deepblue.lib.umich.edu/bitstream/2027.42/118144/3/39015094711721 ...
University of Michigan. A. Alfred Taubman College of Architecture and Urban Planning
core   +6 more sources

Physical and Mechanical Characterization of Artificial Stone with Marble Calcite Waste and Epoxy Resin [PDF]

open access: yesMaterials Research, 2017
The incorporation of calcite marble waste in epoxy resin for the production of artificial stone can represent a technical-economical method and environmentally viable, reducing the amount of discarded residue in the environment, and adding economic value
Fernanda Souza Silva   +2 more
doaj   +2 more sources

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