Results 81 to 90 of about 5,017,645 (251)

Determinants of DMC technologies adoption among smallholders in the Lake Alaotra area, Madagascar : Document de travail BV lac n° 45 [PDF]

open access: yes, 2008
Les techniques de systèmes de semis direct sur couverture végétale (SCV) sont diffusées depuis une dizaine d'années à Madagascar. Ils répondent à des objectifs de préservation de l'environnement, de création de revenus et de réduction de la pauvreté, en ...
Andriamalala, Herizo   +5 more
core  

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

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

open access: yesFEBS 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   +5 more
wiley   +1 more source

Retour d'expérience - Le programme Breizh Bocage au service de la restauration de l’eau [PDF]

open access: yesSciences, Eaux & Territoires, 2019
La Bretagne, très tôt confrontée à une vulnérabilité pour assurer son alimentation en eau potable, a développé des approches territoriales innovantes pour limiter les phénomènes de dégradation de la qualité des milieux.
RENAULT, Pascal
doaj  

A SPATIAL MODEL OF REGIONAL VARIATIONS IN EMPLOYMENT GROWTH IN APPALACHIA [PDF]

open access: yes
In this study, a spatial equilibrium model of employment growth is developed and empirically estimated by Generalized Spatial Two-Stage Least Squares (GS2SLS) estimator using cross-sectional data from Appalachian counties for 1990-2000.
Gebremeskel H. GEBREMARIAM   +4 more
core  

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

open access: yesFEBS 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   +13 more
wiley   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Options for Economic Growth in Mali through the Application of Science and Technology to Agriculture [PDF]

open access: yes
Prepared For The United States Agency for International Development Initiative To End Hunger In Africafood security, food policy, Mali science and technology research, research and extension, International Development, Q18,
Carpenter, Janet   +6 more
core   +1 more source

Meta Ingognita: Canadian Museum of Civilization Announces Project to Investigate Frobisher’s Voyages to Canadian Arctic [PDF]

open access: yes, 2020
In a July 26, 1991 communique, the Canadian Museum of Civilization announced a Canadian-led international project to investigate archaeological sites in the Baffin Island area, once known as Meta Incognita, or the Unknown Shore.

core  

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

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