Results 41 to 50 of about 3,071 (129)

Microbial influence on the formation and subsequent changes of vertebrate tracks: field experiments on present‐day coastal sediments

Sedimentology, Volume 73, Issue 4, Page 1121-1147, June 2026.
ABSTRACT The presence of microbial mats is often invoked to explain the good preservation of vertebrate tracks, because they can cover and biostabilize such structures. However, microbial influence on the sediment properties when the track is made and on the track characteristics has not been so thoroughly analysed.
Isabel Emma Quijada, Lucía Maisano, Jerónimo Pan, María Florencia Yorlano, Diana G. Cuadrado   +4 more
wiley   +1 more source

Desarrollo de Banco Automatizado para Ensayos de Polímeros Utilizados en Impresión 3D

Tecnología y Ciencia, 2020
En este trabajo se presenta el desarrollo, construcción y uso de un banco de ensayo para medir las características elásticas de los plásticos utilizados en máquinas de impresión 3D por deposición de filamento polimérico.
Carlos Adrián Mainetti, Andrés Romero, Marcelo Piovan   +2 more
doaj   +1 more source

Microbial mats in dinosaur ichnocoenoses

Sedimentology, Volume 73, Issue 4, Page 1099-1120, June 2026.
ABSTRACT Until now, the significance of microbial mats in preservation of dinosaur tracks and in reconstructing the palaeoenvironment in which dinosaurs roamed was rarely studied. Dinosaur tracks are commonly found close to ancient aquatic bodies where moist sediment had once allowed footstep registration.
Nora Noffke, Paul C. Murphey, Roger C. Buntin, Martin G. Lockley   +3 more
wiley   +1 more source

PSO algorithm-based robust design of PID controller for variable time-delay systems: AQM application

Journal of Computer Science and Technology, 2015
This paper formulates a robust control for variable time-delay system models. An automatic tuning method for PID-type controller is proposed. The adopted method integrates robust control design using Quantitative Feedback Theory (QFT) with Particle Swan ...
Patricia Noemí Baldini, Guillermo Calandrini, Pedro Doñate, Hector Bambill   +3 more
doaj  

Microbially induced sedimentary structures in fluvial settings: the gas domes from the Bolzano Megacaldera (Permian, Italy)

Sedimentology, Volume 73, Issue 4, Page 914-944, June 2026.
ABSTRACT Gas domes serve as some of the earliest and most persisting indicators of life on Earth, yet their documentation in continental environments remains sparse. This study aims to bridge this gap by examining gas domes within the Permian fluvial succession of Monte Luco, located in the caldera of the Bolzano Supervolcano. These structures occur as
Andrea Baucon, Steffen Trümper, Corrado Morelli, Carlos Neto de Carvalho, Roberto Cabella, Evelyn Kustatscher   +5 more
wiley   +1 more source

The Genus Hyalyris Boisduval, 1870 (Lepidoptera: Nymphalidae) in the Brazilian Atlantic Forest: Systematics, Taxonomy and Conservation

Austral Entomology, Volume 65, Issue 2, May 2026.
ABSTRACT The neotropical butterfly tribe Ithomiini (Danainae) comprises about 400 species distributed from Mexico to Northern Argentina, 58 of which occur in the Brazilian Atlantic Forest. Among these are two species assigned to the genus Hyalyris Boisduval, 1870: Hyalyris fiammetta (Hewitson, 1852) and Hyalyris leptalina (C. Felder & R. Felder, 1865).
André Victor Lucci Freitas, Eduardo Proença Barbosa, Nick Vyacheslavovich Grishin, Ricardo Russo Siewert, Keith Richard Willmott, Gerardo Lamas, Joana Isabel Meier, Augusto Henrique Batista Rosa   +7 more
wiley   +1 more source

Ocean acidification at the crossroads I: Harmonizing unpurified and purified meta‐cresol purple spectrophotometric pHT measurements based on absorbance data

Limnology and Oceanography: Methods, Volume 24, Issue 4, April 2026.
Abstract Consistent monitoring of seawater spectrophotometric pH on the total hydrogen ion scale (pHT) has been questioned by an evolving method, with changes in parameterization and the purity of the meta‐cresol purple (mCP). Using real seawater samples, we demonstrate that spectrophotometric pHT measurements obtained with unpurified (UNPUR) and ...
Marta Álvarez, Maribel I. García‐Ibáñez, Rubén Acerbi, Rocío Santiago‐Domenech, Elisa F. Guallart, Noelia M. Fajar, Lisandro Arbilla   +6 more
wiley   +1 more source

Prevalencia y subdiagnóstico del síndrome de burn out en servicios criticos en el contexto de la pandemia COVID-19

Revista de la Facultad de Ciencias Médicas de Córdoba
Introducción: La importancia del conocimiento del impacto del trabajo en la salud de las personas se ha acrecentado tras la pandemia por COVID-19.
Lucas Gonzalo Duran, Pamela Soledad Vega, Nicolle Stefanía Davit Baridón, Luciana Mattei, Rocío Belén Cappella, Melina Paula Scherñuk Schroh, Geronimo Blint, Eugenio Emmanuel Uriarte, María Montserrat Cerini, Fiorella Melina Toracchio, Jackson José Mejía Caraballo, Candela Giuffre, Julieta Pereyra Huertas, Maria Eugenia Esandi   +13 more
doaj   +1 more source

CARACTERIZACIÓN DE LAS MIELES DEL SECTOR MERIDIONAL DEL DISTRITO PAMPEANO AUSTRAL

Publicación Electrónica de la Asociación Paleontológica Argentina, 2010
In order to typify honeys from the southern area of the Austral Pampeanous District, a study about botanical origin and physico-chemical characteristics was carried out on 43 honey samples collected along 1995, 1996 and 1997.
Ana Andrada, Alda Valle, Estela Aramayo, Liliana Gallez, Sergio Lamberto   +4 more
doaj  

Lipid second messengers and related enzymes in vertebrate rod outer segments

Journal of Lipid Research, 2010
Rod outer segments (ROSs) are specialized light-sensitive organelles in vertebrate photoreceptor cells. Lipids in ROS are of considerable importance, not only in providing an adequate environment for efficient phototransduction, but also in originating ...
Norma M. Giusto, Susana J. Pasquaré, Gabriela A. Salvador, Mónica G. Ilincheta de Boschero   +3 more
doaj   +1 more source