Results 251 to 260 of about 3,014,245 (329)

Low urinary selenium concentration is associated with nonthyroidal illness syndrome in hospitalized patients with COVID-19. [PDF]

open access: yesArch Endocrinol Metab
Anunciação SM   +9 more
europepmc   +1 more source

Chitosan Hydrogels Crosslinked With Glutaraldehyde for Potential Toxic Elements Removal: Batch and Purification Device Analysis

open access: yesJournal of Applied Polymer Science, EarlyView.
ABSTRACT The presence of toxic metal ions in contaminated wastewater raises significant concerns for human health. Three‐dimensional porous systems like hydrogels are being explored for contaminant removal. Still, there is a lack of understanding of their production parameters and performance.
Rennan F. S. Barbosa   +4 more
wiley   +1 more source

Polysulfides From Inverse Vulcanization Used in Electronic Tongues for Heavy Metal Sensing

open access: yesJournal of Applied Polymer Science, EarlyView.
Schematic illustration of the polysulfide‐based e‐tongue system. ABSTRACT Polysulfides (PS) are versatile sulfur‐rich polymers synthesized via the inverse vulcanization of elemental sulfur, a simple one‐pot method that transforms an abundant, low‐cost residue into a functional material. In this work, we employed different PS structures as sensing units
Stella F. Valle   +5 more
wiley   +1 more source

Gastric cancer treatment in Brazil: a multicenter study of the Brazilian Gastric Cancer Association. [PDF]

open access: yesRev Col Bras Cir
Ramos MFKP   +19 more
europepmc   +1 more source

Sôbre ototyphlonemertes do Brasil

open access: gold, 1950
Diva Diniz Corrêa
openalex   +2 more sources

Variation in parrot jaw musculature

open access: yesThe Anatomical Record, EarlyView.
Interspecific morphological differences in some superficial jaw muscles of parrots. Abstract Psittaciformes, the order encompassing parrots and their relatives, are highly diverse and generally known for having a strong beaks used for multiple behaviors. The muscles related to the masticatory apparatus should reflect this functional complexity; however,
Ana Carolina L. Faillace   +3 more
wiley   +1 more source

Morphology and paleoecology of a hybodontiform with serrated teeth, Priohybodus arambourgi, from the Late Jurassic of northeastern Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Hybodontiformes was a diverse, successful, and important group of shark‐like chondrichthyans known from a variety of ecosystems. Some representatives of the order had a wide palaeogeographic distribution, as is the case with Priohybodus arambourgi. With a multicuspidate crown, P. arambourgi was the first hybodontiform to develop fully serrated
Estevan Eltink   +5 more
wiley   +1 more source

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