Results 141 to 150 of about 1,574 (297)

Efecto del etefón (ethrel) y el tiempo de almacenamiento sobre la maduración del plátano (Musa ABB cv. Harton) bajo refrigeración Effect of ethephon and storage time on ripening of plantain (Musa AAB cv Harton) under refrigeration

open access: yesBioagro, 2007
RESUMEN Se evaluó la maduración poscosecha del plátano luego de ser tratados con cinco dosis de etefón en el rango de concentración de 2000 a 6000 mg·L-1 de Ethrel, y almacenados por períodos comprendidos entre 24 y 240 horas.
Tony García   +4 more
doaj  

Human Gut Bacteria and Lipidic Nanoparticles: Particle Composition Predicts Structural Transformation and Bacterial Biocompatibility

open access: yesAdvanced Functional Materials, EarlyView.
Lipidic nanoparticles (LNPs) were incubated with 21 gut bacteria frequently associated with the human microbiome. SAXS revealed that ∼75% of tested species induced structural transformations in monoolein LNPs, whereas phytantriol and phospholipid formulations remained unaffected.
Jonathan Caukwell   +7 more
wiley   +1 more source

Estimación de modelos para evaluar la pungencia en cebolla [PDF]

open access: yes, 2012
La cantidad de ácido pirúvico presente en los bulbos de cebolla está estrechamente relacionada con diversos factores como son las técnicas agronómicas, así como, los fertilizantes nitrogenados o la facilidad de los bulbos para acumular sólidos ...
Raigón Jiménez, Mª Dolores   +1 more
core  

Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films

open access: yesAdvanced Functional Materials, EarlyView.
Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee   +5 more
wiley   +1 more source

Inmunorregulación en conectivopatías: alteraciones linfocitarias mediadas por factores solubles

open access: yes, 1985
Tesis doctoral original inédita leída en la Universidad Autónoma de Madrid, Facultad de Medicina, Departamento de Medicina.
Gaspar Alonso-Vega, María Luisa
core  

Factores genéticos, moleculares y células implicadas en la aceptación del injerto hepático : relevancia de las moléculas coestimuladoras (CD86) y pro-apoptóticas (CD95 y CD95L) [PDF]

open access: yes, 2012
El objetivo principal del presente trabajo de tesis es profundizar en el conocimiento de los mecanismos inmunológicos implicados en el desarrollo de tolerancia o rechazo en los receptores de un injerto hepático.
Marín Rubio, Luis Alberto
core  

Swelling‐Programmed Topographical Guidance for Dynamic Spheroid Self‐Assembly via a Mechanochemical Hydrogel Niche

open access: yesAdvanced Functional Materials, EarlyView.
A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam   +8 more
wiley   +1 more source

Análisis físicos y químicos de cafés molidos y solubles

open access: yes, 1985
El café forma parte de la gran familia de las Rubiáceas y el género coffea. Para el cultivo del café factores a considerar son: La altitud, el suelo, el clima, factores económicos.
Sacoto S., Ruth, Montesdeoca M., Susana
core  

Interfacial Modulation for High‐Efficiency Large‐Area Organic Photovoltaics and Perovskite‐Organic Tandem Solar Modules

open access: yesAdvanced Functional Materials, EarlyView.
Self‐assembled monolayers (SAMs) are promising hole‐transporting materials for organic photovoltaics (OPVs), but suffer from self‐aggregation and poor large‐area uniformity. We find that interfacial modification using nicotinic hydrazide can eliminate the residual SAM aggregates by forming energetically favorable complexes, yielding uniform SAM.
Seongwon Yoon   +10 more
wiley   +1 more source

Tissue‐Stimulator Platform for Electrically Stimulating Pancreatic β‐Cells for Long‐Term Functional Regulation

open access: yesAdvanced Functional Materials, EarlyView.
We present a tissue‐stimulator platform for seamless electrode integration with pancreatic tissue, applying uniform electrical stimulation through optimized design with biohybrid 3D printing. Advantageous effects of electrical stimulation on β‐cell function were observed, including enhanced calcium signaling, islet morphology, and maturation.
Jihwan Kim   +7 more
wiley   +1 more source

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