Results 91 to 100 of about 3,794,549 (326)

Enraizamento de estacas semilenhosas de oliveira sob efeito de diferentes épocas, substratos e concentrações de ácido indolbutírico Rootings of semi-woody cuttings of olive tree under effects of collection time, substrate, and concentrations of indol-3-butiric acid (IBA)

Ciência e Agrotecnologia, 2003
Com o objetivo de avaliar o enraizamento de estacas semilenhosas de oliveira (Olea europaea L.), sob efeito de diferentes épocas, substratos e concentrações de ácido indolbutírico (AIB), foram conduzidos na Fazenda Experimental da EPAMIG em Maria da Fé ...
Adelson Francisco de Oliveira, Moacir Pasqual, Nilton Nagib Jorge Chalfun, Murillo de Albuquerque Regina, Carmen Del Rio Rincón   +4 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

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

FEBS 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

Direct and inverse measurement of thin films magnetostriction

, 2009
Two techniques of measurements of thin film magnetostriction are compared: direct, when changes of the substrate curvature caused by the film magnetization are controlled, and inverse ("indirect"), when the modification of the magnetic anisotropy induced
Ali, Arnaudas, Ashwell, Chikazumi, Cooke, Dean, du Trémolet de Lacheisserie, du Trémolet de Lacheisserie, du Trémolet de Lacheisserie, du Trémolet de Lacheisserie, F. Le Berre, Gontarz, Guerrero, Iannotti, Iannotti, J.-Ph. Jay, Janssen, Jay, Kittel, Klokholm, Kundys, M.V. Indenbom, Marcus, Markham, Prokop, S.P. Pogossian, Sander   +26 more
core   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

On the Making of Signboards

Semiotic Review
During the last forty years, a parallel yet separate reflection has unfolded across the Atlantic. While European semioticians have developed the concept of enunciation to tackle the relationship between the linguistic system and its concrete ...
Aurora Donzelli
doaj   +1 more source

Symbiotic propagation of seedlings of Cyrtopodium glutiniferum Raddi (Orchidaceae)

Acta Botânica Brasílica, 2013
In nature, orchid seeds obtain the nutrients necessary for germination by degrading intracellular fungal structures formed after colonization of the embryo by mycorrhizal fungi.
Fernanda Aparecida Rodrigues Guimarães, Marlon Corrêa Pereira, Cristiane da Silva Felício, Denise Pereira Torres, Sabrina Feliciano Oliveira, Tomás Gomes Reis Veloso, Maria Catarina Megumi Kasuya   +6 more
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Choosing a substrate for the ion irradiation of two-dimensional materials

Beilstein Journal of Nanotechnology, 2019
This study is dedicated to the common problem of how to choose a suitable substrate for ion irradiation of two-dimensional materials in order to achieve specific roles of certain defect formation mechanisms.
Egor A. Kolesov
doaj   +1 more source

A Mathematical Model for Epitaxial Semiconductor Crystal Growth from the Vapor Phase on a Masked Substrate [PDF]

, 1999
Certain materials used in lasers are made by a process called epitaxial semiconductor crystal growth. In this report a mathematical model is developed for this growth process which occurs on a substrate at the junction between a masked region and exposed
Braun, R., French, D.A., Pelesko, J.A.
core