Results 71 to 80 of about 1,651,742 (317)

Toy trains, loaded dice and the origin of life: dimerization on mineral surfaces under periodic drive with Gaussian inputs [PDF]

open access: yesRoyal Society Open Science, 2017
In a major extension of previous work, we model the putative hydrothermal rock pore setting for the origin of life on Earth as a series of coupled continuous flow units (the toy train).
Rowena Ball, John Brindley
doaj   +1 more source

How Was Nature Able to Discover Its Own Laws—Twice?

open access: yesLife, 2021
The central thesis of the modern scientific revolution is that nature is objective. Yet, somehow, out of that objective reality, projective systems emerged—cognitive and purposeful.
Addy Pross
doaj   +1 more source

Evolution of chemical abundances in Seyfert galaxies

open access: yes, 2007
We computed the chemical evolution of spiral bulges hosting Seyfert nuclei, based on updated chemical and spectro-photometrical evolution models for the bulge of our Galaxy, made predictions about other quantities measured in Seyferts, and modeled the ...
Adams   +141 more
core   +2 more sources

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

EURAD State-of-the-Art Report: ACED assessment of the chemical evolution at the disposal cell scale—part I—processes at interfaces and evolution at disposal cell scale

open access: yesFrontiers in Nuclear Engineering
Within the framework of the European Joint Programme on Radioactive Waste Management, the work package ACED–Assessment of chemical evolution of intermediate level (ILW) and high level (HLW) waste at disposal cell scale–used combined experimental and ...
Erika Neeft   +2 more
doaj   +1 more source

Chemical roots of biological evolution: the origins of life as a process of development of autonomous functional systems [PDF]

open access: yesOpen Biology, 2017
In recent years, an extension of the Darwinian framework is being considered for the study of prebiotic chemical evolution, shifting the attention from homogeneous populations of naked molecular species to populations of heterogeneous, compartmentalized ...
Kepa Ruiz-Mirazo   +2 more
doaj   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

EURAD State-of-the-Art Report: Assessment of the chemical evolution at the disposal cell scale – part II – gaining insights into the geochemical evolution

open access: yesFrontiers in Nuclear Engineering
Long time frames are to be considered in the safety and performance assessment of deep geological disposal of intermediate and high level radioactive waste.
Guido Deissmann   +2 more
doaj   +1 more source

Neutron-capture elements record the ordered chemical evolution of the disc over time [PDF]

open access: green, 2021
Danny Horta   +4 more
openalex   +1 more source

Hydro- Chemical Evolution of Palk Strait Region, Bay of Bengal [PDF]

open access: yes, 2012
Present analysis was carried out the physico- chemical parameters of two stations such as Thondi and Soliyakudi in the southeast Palk Strait region during the monsoon and post monsoon seasons (November 2008 – March 2009).
Arulpriya, M. (Mani)   +3 more
core  

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