Results 51 to 60 of about 24,209,160 (311)

Development of Adsorbent Materials Using Residue from Coffee Industry and Application in Food dye Adsorption Processes

open access: yesBrazilian Archives of Biology and Technology, 2022
The aim of this study was to develop an adsorbent from coffee husk, residue from the coffee industry by different activation methods and to evaluate its application in the treatment of effluent containing synthetic Ponceau 4R dye.
Luiz Eduardo Nochi de Castro   +3 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Steam Condensation Scaled Experiment in the Presence of Non-Condensable Gases for Small Modular Reactor Containment Passive Safety [version 2; peer review: 2 approved]

open access: yesNuclear Science and Technology Open Research
This study presents scaled experiments using steam condensation with non-condensable gas (NCG)—helium (He), simulating hydrogen, and nitrogen (N2)—as these experiments are pivotal for water-cooled reactor passive containment cooling system (PCCS) design ...
Joshua P. Schlegel   +2 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Thermal stress analysis of fuel element in particle bed reactor [PDF]

open access: yes, 2013
In this paper, a method of determination of temperature and thermal stress distributions in a fuel element of a new gas-cooled, thermal spectrum particle bed reactor (GCT-PBR) was derived.
Han, Lu
core  

Application of thermal analysis to material science

open access: yes, 2022
S.455-465Thermoanalytical methods are used for investigation of outgassing and sintering of hardmetals. Shrinkage (DILA), mass loss (TG), gas evolution (EGA - mass spectrometry) and thermal effects (DSC) allow to describe sintering processes. The results
Leitner, G.
core   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Thermal analysis and structural investigation of different dental composite resins

open access: yes, 2008
The structural and thermal properties of three different dental composite resins, Filtek (TM) Supreme XT, Filtek (TM) Z-250 and TPHA (R)(3) were investigated in this study.
ANDREETA, Marcello Rubens Barsi   +5 more
core   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

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