Results 91 to 100 of about 10,585,569 (293)

Cycling of Fe(II)/Fe(III) in the euphotic zone mediated by mineral photocatalysis

open access: yesNature Communications
The marine iron cycle is now recognized as fast and dynamic, partly fueled by vast particulate iron inputs. Yet the mechanisms that activate this reservoir to sustain productivity remain unresolved. Here we show that mineral photocatalysis, an overlooked
Tong Liu   +12 more
doaj   +1 more source

The role of minerals in prebiotic evolution: Implications for identifying worlds with the potential for life’s origin

open access: yesFundamental Research
Understanding the origin of life requires explaining how abiotic molecules transitioned into the first living systems within plausible geological settings. Increasing evidence suggests minerals as active participants in prebiotic evolution.
Houze Lu, Yan Li, Dehai Liang
doaj   +1 more source

Reflections on function spaces

open access: yesAnnals of Pure and Applied Logic, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

An Educational Introduction to ITAR and EAR Regarding Pressure Suits and Space Suits

open access: yes
Immediate accessThis item is made available by the University of Arizona Center for Human Space Exploration (CHaSE) with support from the University of Arizona Libraries.
Tresch, Trent
core   +4 more sources

Multifractal and Grey Relational Analysis of Pore Fluid Distribution in Tight Sandstone Using an Innovative NMR Dual T2 Cutoff Model

open access: yesFractal and Fractional
Accurate characterization of pore-fluid mobility is essential for evaluating tight sandstone reservoirs. This study investigates ten tight sandstone samples from the Sangonghe Formation in the Junggar Basin using petrophysical measurements, X-ray ...
Shuaidong Wang   +3 more
doaj   +1 more source

Characterisation of sequence-structure-function space in sensor-effector integrators of phytochrome-regulated diguanylate cyclases. [PDF]

open access: yesPhotochem Photobiol Sci, 2022
Böhm C   +7 more
europepmc   +1 more source

Clustering and redshift-space distortions in QSO and galaxy surveys [PDF]

open access: yes, 2006
In this thesis, we exploit the potential of existing QSO and galaxy surveys for investigating the nature of the large scale structure in the Universe. A detailed analysis of clustering and redshift- space distortions allows us to constrain cosmological ...
Cruz da Angela, José Antonio   +1 more
core  

Metastatic niche shaped by host factors influences disseminated cancer cell fate

open access: yesFEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward   +2 more
wiley   +1 more source

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