Results 41 to 50 of about 8,072 (151)

The balance between gyrase and topoisomerase I activities determines levels of supercoiling, nucleoid compaction, and viability in bacteria

Frontiers in Microbiology, 2023
Two enzymes are responsible for maintaining supercoiling in the human pathogen Streptococcus pneumoniae, gyrase (GyrA2GyrB2) and topoisomerase I. To attain diverse levels of topoisomerase I (TopoI, encoded by topA), two isogenic strains derived from wild-
Míriam García-López, Diego Megias, María-José Ferrándiz, Adela G. de la Campa, Adela G. de la Campa   +4 more
doaj   +1 more source

Observations on Rhamnus alaternus Naturally Infected by Xylella fastidiosa subsp. multiplex ST87 in the Mediterranean Maquis of Monte Argentario (Tuscany, Italy)

Plant Pathology, Volume 74, Issue 6, Page 1813-1829, August 2025.
At Monte Argentario (Italy), the severity of symptoms on Rhamnus alaternus, a drought‐resistant species of the Mediterranean maquis, is attributable to the progression of Xylella fastidiosa ST87 infection only in part. ABSTRACT The diseases caused by the xylem‐inhabiting bacterium Xylella fastidiosa (Xf) are considered a consequence of the drastic ...
Sara Falsini, Sara Campigli, Paola Faraoni, Corrado Tani, Valentina Rech, Alessio Papini, Gianluca Bleve, Domenico Rizzo, Emanuele Marcucci, Lorenzo Drosera, Alessio Gnerucci, Francesco Ranaldi, Francesca Peduto Hand, Silvia Schiff, Guido Marchi   +14 more
wiley   +1 more source

Los componentes de la matriz extracelular de Bacillus subtilis son necesarios para proteger la colonia de la invasión de Pseudomonas y para la co-colonización en plantas [PDF]

, 2019
Las plantas son colonizadas por una gran variedad de microorganismos, y entre ellas las bacterias son las más predominantes dada su capacidad para adaptarse a cambios ambientales y comunicarse con otros organismos.
Berlanga-Clavero, Maria Victoria, Caraballo-Rodriguez, Andrés Mauricio, De-Vicente-Moreno, Antonio, Dorrestein, Pieter, Molina-Santiago, Carlos, Navarro, Yurena, Pearson, John, Petras, Daniel, Romero-Hinojosa, Diego Francisco   +8 more
core  

Tailoring Piezoelectric Nanogenerators and Microdevices for Cellular Excitation: Impact of Size and Morphology

Advanced Science, Volume 12, Issue 24, June 26, 2025.
Piezoelectric microdevices, composed of ZnO nanosheets acting as nanogenerators and grown on silicon microparticles, are designed and fabricated to deliver precise electrical cell stimulation. This study optimizes nanosheet growth and microparticle size to enhance electrical cell activation performance while minimizing cellular internalization.
Laura Lefaix, Marc Navarro, Carme Nogués, Andreu Blanquer, Gonzalo Murillo   +4 more
wiley   +1 more source

Método para la generación de modelos realistas en tres dimensiones de células neuronales [PDF]

, 2013
Esta invención presenta un método para la generación de modelos tridimensionales de células neuronales partiendo de la información morfológica incompleta extraída mediante métodos de muestreo estándar. Los modelos generados incluyen un soma realista,
Bayona Beriso, Sofía, Benavides-Piccione, Ruth, Brito Menéndez, Juan Pedro, DeFelipe, Javier, Mata Fernández, Susana, Pastor Pérez, Luis   +5 more
core   +1 more source

Caracterización de la heterogeneidad estructural en polipropileno polimórfico mediante espectroscopia vibracional: microscopia IR y Raman

Boletín de la Sociedad Española de Cerámica y Vidrio, 2004
A series of polymorphic samples of isotactic polypropylene, obtained via selective nucleation, were studied by vibrational spectroscopy. A correlation was observed between the spectra obtained and the Turner-Jones parameter, characteristic of the ...
Ellis, G., Marco, C., Gómez, M. A., Blancas, C.   +3 more
doaj  

Densidad de queratocitos en córneas de pacientes miopes

Medimay, 2012
Introducción: el análisis de las variables histológicas en pacientes miopes se ha convertido en los últimos años en elemento primordial para asegurar la óptima calidad de indicación y seguimiento en pacientes con defectos refractivos sometidos a ...
Eduardo Rojas Alvarez, Janet González Sotero, Isabel Lantigua Maldonado   +2 more
doaj   +4 more sources

Use of in vivo confocal microscopy for the diagnosis of corneal dystrophies

Revista de Ciencias Médicas de Pinar del Río, 2016
The cornea is the tissue of the eye that provides most of the refractive power. Any disease that alters its morphological characteristics affects vision.
Osmaiyadan Cabrera Ventura
doaj  

Toward More Scalable Processes for Perovskite Solar Cells: A Comparison Between Planar and Mesoporous Architectures

Nano Select, Volume 6, Issue 5, May 2025.
Showcasing an airߚbased fabrication process and optimized architecture for the largeߚscale development of perovskite solar cells. ABSTRACT Developing perovskite solar cells (PSCs) under ambient conditions remains challenging due to the material's sensitivity to oxygen and moisture. This study presents two types of PSCs fabricated entirely under ambient
Fatou Diaw Ndiaye, Lara Perrin, Maria Bernechea, Lionel Flandin, Emilie Planes   +4 more
wiley   +1 more source

MINFLUX nanoscopy: Visualising biological matter at the nanoscale level

Journal of Microscopy, Volume 298, Issue 2, Page 219-231, May 2025.
Abstract Since its introduction in 2017, MINFLUX nanoscopy has shown that it can visualise fluorescent molecules with an exceptional localisation precision of a few nanometres. In this overview, we provide a brief insight into technical implementations, fluorescent marker developments and biological studies that have been conducted in connection with ...
Alexander Carsten, Antonio Virgilio Failla, Martin Aepfelbacher   +2 more
wiley   +1 more source