Results 171 to 180 of about 3,644 (285)

H2‐dependent modulation of tetrahydromethanopterin S‐methyltransferase (Mtr complex) activity by the small protein MtrR in Methanosarcina mazei

open access: yesThe FEBS Journal, EarlyView.
Small protein MtrR is a regulator of the Mtr methyltransferase complex in Methanosarcina mazei. It binds specifically to the MtrA subunit and modulates Mtr activity in response to hydrogen (H2) availability. Deleting mtrR impairs growth in the presence but not absence of H2, indicating its role in directing methyl transfer toward an energy‐conserving ...
Tim Habenicht   +6 more
wiley   +1 more source

Polyesterase activity and thermostability of carboxylesterases from Thermoleophilum album YS‐3

open access: yesThe FEBS Journal, EarlyView.
Three novel α/β‐hydrolases from thermophilic bacterium Thermoleophilum album display carboxylesterase and polyesterase activity. These enzymes hydrolyse PET, PLA and PCL both at high and moderate temperatures. TA21 shows superior activity, efficiently converting MHET to terephthalic acid. Structural features underlying substrate binding highlight their
Tatyana N. Chernikova   +6 more
wiley   +1 more source

Quantifying Fiber Bridging in Mode I Fatigue Delamination of CFRP/GFRP Hybrid Laminates Using a Superposed Traction–Separation Model

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT Hybrid CFRP/GFRP laminates offer an attractive balance between mechanical performance, damage tolerance, and cost efficiency. However, fiber bridging during mode I delamination increases crack‐growth resistance while masking the intrinsic fatigue behavior of the material. This study applies a traction–separation‐based superposition approach to
Francisco Maciel Monticeli
wiley   +1 more source

High-Performance Recycling Biobased Photopolymers for 3D Printing. [PDF]

open access: yesAdv Sci (Weinh)
Zhou H   +12 more
europepmc   +1 more source

In Vitro Evaluation of Bond Strength of Adhesive Systems to Dentin and Stability of the Hybrid Layer

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective Contemporary dental adhesives demonstrate strong durable adhesion to enamel while long‐term bonding stability to dentin remains uncertain. This in vitro study aimed to compare conventional dentin conditioning protocols supplemented with protease inhibition and chelate‐based conditioning protocols. Materials and Methods Four groups of
Ana Torres Muñoz   +4 more
wiley   +1 more source

Tree growth response and adaptation to climate change and climate extremes: From canopy to stem

open access: yesJournal of Integrative Plant Biology, EarlyView.
This review synthesizes the responses and adaptations of tree growth, including canopy phenology, intra‐annual wood formation dynamics, and annual stem growth, to climate change and climate extremes. It highlights key knowledge gaps for future research to support sustainable forest management and enhance forest carbon storage under ongoing climate ...
Feiyu Yang   +8 more
wiley   +1 more source

Agathis vs. Hymenaea-trapping biases to interpret arthropod assemblages in ambers. [PDF]

open access: yesBMC Biol
Solórzano-Kraemer MM   +11 more
europepmc   +1 more source

Comparative histological analysis of vertebrates reveals Triassic climate variability across southern Pangea

open access: yesJournal of Anatomy, EarlyView.
Bone tissues of Triassic taxa reveal life history signals consistent with climatic variation across southern Pangea, spanning present‐day Brazil, Argentina, Zimbabwe, and India. Slower growth patterns within the Zimbabwean assemblage suggest a comparatively more arid intracontinental environment than those closer to the coast. Artwork by Andrey Atuchin.
Valerie Trinidad   +6 more
wiley   +1 more source

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