Results 31 to 40 of about 150,595 (266)

Prolactin and oxytocin as modulators of intestinal contractility and glucose uptake

Frontiers in Physiology
IntroductionProlactin (PRL) and oxytocin (OT) are bioactive hormones naturally present in maternal milk that support neonatal development, contribute to immune regulation and gut maturation in infants, and promote growth and cell differentiation in the ...
Perla Alejandra Figueroa-Carrasco, Aída Jimena Velarde-Salcedo, Carmen Gonzalez   +2 more
doaj   +1 more source

Contaminantes emergentes. Problemática ambiental asociada al uso de antibióticos. Nuevas técnicas de detección, remediación y perspectivas de legislación en América Latina

Revista de Salud Ambiental, 2020
Los antibióticos son fármacos considerados como contaminantes emergentes, usados para el tratamiento de enfermedades bacterianas, en salud humana y veterinaria.
Jessica Meléndez-Marmolejo, Yair García-Saavedra, Vanessa Galván-Romero, Lorena Díaz de León-Martínez, Karla Vargas-Berrones, Jesus Mejía-Saavedra, Rogelio Flores Ramírez   +6 more
doaj   +2 more sources

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

Advanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez, Melanie Guillén‐Soler, Carlos Herreros‐Lucas, Alejandro López‐Moreno, José Manuel Vila‐Fungueiriño, Antonio Luis Llamas‐Saiz, Karol Strutyński, Manuel Melle‐Franco, María del Carmen Giménez‐López   +8 more
wiley   +1 more source

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

Advanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro, Hugo Aramberri, Víctor Rouco, Gabriel Sánchez‐Santolino, Mariona Cabero, Fernando Gallego, David Sánchez‐Manzano, José M. González‐Calbet, Federico Mompeán, Mar García‐Hernández, Alberto Rivera‐Calzada, Jorge Íñiguez‐González, Carlos León, Jacobo Santamaría   +13 more
wiley   +1 more source

DEPÓSITO ATMOSFÉRICO DE BERILIO-7 EN SUELO

Anales (Asociación Física Argentina), 2013
El Berilio-7 es un radionucleido natural (Eγ = 477.6 keV; t1/2 = 53.3 d) que se origina a partir de la interacción de los rayos cósmicos con la atmósfera terrestre, e ingresa al suelo principalmente por deposición húmeda (lluvias).
F Lohaiza, J Juri Ayub, H Velasco, M Rizzotto, D Di Gregorio, H Huck, D Valladares   +6 more
doaj  

COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption

Advanced Materials, EarlyView.
A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas, Lucía Torrico‐García‐Viso, Jose Antonio Suárez del Pino, Nekane Aramburu‐Merino, Pilar Segovia, Enrique G. Michel, Josep Puigmartí‐Luis, Enrique Velasco, Pedro Tarazona, Daniel Maspoch, David Rodríguez‐San‐Miguel, Félix Zamora   +11 more
wiley   +1 more source

Porous Hybrid Soft Actuators From Liquid Crystal Networks and Lyotropic Chromonic Liquid Crystal Templated Hydrogels

Advanced Materials, EarlyView.
The graphic illustrates the design of a hybrid bilayer composed of a liquid crystal hydrogel (LCH) and a liquid crystal network (LCN). The figure highlights the magnetic alignment of the chromonic hydrogel and the thermal‐responsive actuation of the LCN along with the LCH when both layers are aligned or misaligned, enabling programmable, light‐driven ...
Ramón Santiago Herrera Restrepo, Irving Hafed Tejedor García, Matthew Gene Scarfo, Negin Bouzari, Negar Rajabi, Olga Bantysh, Joel Torres‐Andrés, Christopher W. V. James, Maria Guix, Amirreza Aghakhani, Jordi Ignés‐Mullol, Salvador Pané, Josep Puigmartí‐Luis, Hamed Shahsavan   +13 more
wiley   +1 more source

Design and Implementation of a Computer Vision System for an Autonomous Chess-Playing Robot

Journal of Computer Science and Technology, 2018
This work describes a mechatronic system composed by a robot arm that can play chess autonomously. The system is based on an industrial-grade robot manipulator, a computer vision system, and an open source chess engine.
Guillermo Larregay, Federico Pinna, Luis Avila, Daniel Morán   +3 more
doaj   +1 more source

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

Advanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis, Luis Carlos Sanjuan Acosta, Shubh P. Mehta, Baiyan Qi, Yang Yang, Luis Solorio, Craig J. Goergen, David J. Cappelleri   +7 more
wiley   +1 more source

Foco e cobertura do programa Bolsa Família em crianças das coortes de nascimento BRISA, Ribeirão Preto (São Paulo) e São Luís (Maranhão), Brasil

Cadernos de Saúde Pública
Estudo transversal aninhado a uma coorte, que teve como objetivo descrever foco e cobertura do programa Bolsa Família em crianças de 13-35 meses de idade.
Francelena de Sousa Silva, Rejane Christine de Sousa Queiroz, Maria dos Remédios Freitas Carvalho Branco, Maria Isabel Accoroni Theodoro Habenschus, Luiz Guilherme Scorzafave, Maria da Conceição Pereira Saraiva, Heloísa Bettiol, Marco Antonio Barbieri, Marcelo Augusto Ferraz Ruas Rodrigues, Yonna Costa Barbosa, Vanda Maria Ferreira Simões, Antônio Augusto Moura da Silva   +11 more
doaj   +1 more source