Results 101 to 110 of about 437,513 (296)

Era de la tecnología cuántica: de la computación cuántica a la biología cuántica de sistemas

, 2021
Víctor Cavaller
openalex   +1 more source

Copper‐Based Conductive Nanoinks: Scalable Synthesis via Continuous‐Flow Microwave‐Assisted Polyol Process

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Microwave‐assisted polyol synthesis in continuous flow produces metallic Cu nanoparticles, using ethylene glycol as solvent and reducing agent, lignin to stabilize the colloid and prevent oxidation, and metal‐seeds for particle size control. Metallic copper nanoparticles are a promising alternative to gold and silver in printed electronics due to their
Antonio Santana‐Otero, Yilian Fernández‐Afonso, María Salvador, André Van Zomeren, Salvador Bertran‐Llorens, María del Puerto Morales, Sabino Veintemillas‐Verdaguer   +6 more
wiley   +1 more source

Nota sobre Phiale crocuta (Taczanowski, 1879), su distribución y sus sinónimos (Aranae, Salticidae)

Acta Zoológica Lilloana, 2020
El estudio de una colección de arañas Salticidae de diferentes partes de Perú y Ecuador, ha dado como resultado el hallazgo de una especie poco conocida: Phiale crocuta (Taczanowski), que parece ser muy abundante en las cercanías de edificaciones y ...
María Elena Galiano
doaj  

The reaction mechanism of metallo-beta-lactamases is tuned by the conformation of an active site mobile loop [PDF]

, 2018
Carbapenems are "last resort" β-lactam antibiotics used to treat serious and life-threatening health care-associated infections caused by multidrug-resistant Gram-negative bacteria.
Alzari, Pedro M., Bethel, Christopher R., Bonomo, Robert A., Giannini, Estefanía, Klinke, Sebastian, Llarrull, Leticia Irene, Mojica, María F., Otero, Lisandro Horacio, Palacios, Antonela Rocio, Taracila, Magdalena A., Vila, Alejandro Jose   +10 more
core   +1 more source

New Approach Methodologies (NAMs) in Alternative Methods: A Comparative Cytotoxicity Analysis of Nanostructured Hydroxyapatite in Adipose Stem Cells Spheroids

Journal of Applied Toxicology, EarlyView.
ABSTRACT Toxicological assessment is essential in NP approval for health and medical applications. Although 2D cell culture has been widely used, 3D models, especially spheroids, provide better predictive value for toxicological risk assessments since they replicate complex cellular interactions more accurately.
Bianca Montenegro, Rosângela Mayer Gonçalves, Marcelle Gomes Pegurier, Isabelle Amorim, Alexandre Malta Rossi, Leandra Santos Baptista   +5 more
wiley   +1 more source

La confusa taxonomía de Cryptosporidium

Revista Peruana de Biología, 2006
Los últimos descubrimientos en la biología y filogenética de Cryptosporidium refuerzan la necesidad de una exhaustiva revisión del ciclo de vida y la taxonomía de este parásito.
Gregorio Pérez-Cordón
doaj   +1 more source

Analysis of Gene Expression in Aedes aegypti Suggests Changes in Early Genetic Control of Mosquito Development

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
ABSTRACT Aedes aegypti, a critical vector for tropical diseases, poses significant challenges for studying its embryogenesis due to difficulties in removing its rigid chorion and achieving effective fixation for in situ hybridization. Here, we present novel methodologies for fixation, dechorionation, DAPI staining, and in situ hybridization, enabling ...
Renata Coutinho‐dos‐Santos, Danielle Santos, Lupis Ribeiro, Jonathan J. Mucherino‐Muñoz, Marcelle Uhl, Carlos Logullo, A. Mendonça‐Amarante, M. Fantappie, Rodrigo Nunes‐da‐Fonseca   +8 more
wiley   +1 more source

Niveles de comprensión lectora en alumnos de secundaria. Una comparación por tópico.

Actualidades en Psicología, 2015
Con base en los planteamientos de la psicología interconductual se desarrollaron y validaron dos pruebas para evaluar tres niveles de comprensión lectora de textos relacionados con dos tópicos: uno literario y uno de biología. El objetivo fue analizar el
Yolanda Guevara Benítez, Karlena Cárdenas Espinoza, Verónica Reyes Pérez   +2 more
doaj   +1 more source

Evidence of the presence of calcium/calmodulin-dependent protein kinase IV in human sperm and its involvement in motility regulation [PDF]

, 2005
The mechanisms involved in the regulation of mammalian sperm motility are not well understood. Calcium ions (Ca(2+)) have been suggested to play a key role in the maintenance of motility; nevertheless, how Ca(2+) modulates this process has not yet been ...
Buffone, Mariano Gabriel, Chertihin, Olga, Herr, John C,, Jha, Kula N., Marin Briggiler, Clara Isabel, Vazquez, Monica Hebe, Visconti, Pablo E.   +6 more
core   +1 more source

Escaping Constraints to Innovate: Maternal Neofunctionalization in a HoxB4 Duplicate

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Whole‐genome duplication in Xenopus laevis generated duplicated Hox genes that are largely constrained in sequence and developmental expression. However, HoxB4L uniquely acquired maternal expression through cis‐regulatory and protein structural divergence, illustrating how gene duplication enables transcription factors to escape pleiotropic constraints
Júlia de Lima Carvalho, José Caetano Silva‐Filho, Janaina Lima de Oliveira   +2 more
wiley   +1 more source