Results 181 to 190 of about 30,789 (260)

Quantification of Sulfonated Polyacrylamides by SEC‐UV in Produced Water: Validation and Oilfield Case Study

open access: yesJournal of Applied Polymer Science, EarlyView.
Size exclusion chromatography with UV–vis detection, combined with ultrasonication pretreatment, enables sensitive detection and quantification of back‐produced polymer at very low concentrations in produced water. This approach supports reliable polymer monitoring and offers a practical route to improve surveillance of polymer flooding performance ...
Eduardo José Creatto   +6 more
wiley   +1 more source

An Intelligent Wound Dressing Platform Based on Natural pH‐Sensors From Syzygium cumini

open access: yesJournal of Applied Polymer Science, EarlyView.
This study presents a dual‐functionality wound dressing platform based on an alginate–hyaluronate matrix integrated with Syzygium cumini extract. The smart film acts as a sensitive, reversible pH‐sensor for real‐time infection monitoring and a structural plasticizer that enhances mechanical conformability.
Rachel Faverzani Magnago   +8 more
wiley   +1 more source

Scorpionism in the Amazon: Evidence, Challenges and Actions for Controlling a Neglected Disease. [PDF]

open access: yesRev Soc Bras Med Trop
Sachett J   +12 more
europepmc   +1 more source

Mudança e sobrevivência no alto Xingu, Brasil Central

open access: yesRevista de Antropologia, 1966
Galvão, Eduardo, Simões, Mario F.
openaire   +3 more sources

Microwave‐Assisted Alcoholysis of Ethylene–Vinyl Acetate: Phenomenological and Thermal Evolution of EVAOH Terpolymers

open access: yesJournal of Applied Polymer Science, EarlyView.
Microwave‐assisted alcoholysis converts EVA into EVAOH terpolymers, promoting a progressive transition from EVA‐like crystallites to VOH‐rich hydrogen‐bonded crystalline domains. Solvent‐controlled swelling influences conversion kinetics, while thermal analysis reveals a sigmoidal increase in melting temperature that a two‐population crystallization ...
Fernanda Trindade Gonzalez Dias   +3 more
wiley   +1 more source

Atypical cutaneous manifestations: When leprosy and syphilis overlap. [PDF]

open access: yesRev Soc Bras Med Trop
Souza NY   +4 more
europepmc   +1 more source

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

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