Results 161 to 170 of about 31,790 (262)

Rheological Characterization and Multi‐Regime Viscosity Modeling of Diluted Polyethylene Mixtures

Polymer Engineering &Science, EarlyView.
This study maps the flow behavior of low‐density polyethylene in a recycling solvent from dilute solutions to entangled melts. By integrating time–concentration and time–temperature superposition, and coupling three complementary rheometry methods, a unified semiempirical model accurately predicts steady‐shear viscosity over nine decades of viscosity ...
Johannes Krug, Ernst Georg Viehböck, Alexander Hammer, Ursula Steiner, Christof Murnig, Martin Reichel, Christian Paulik, Gerald Berger‐Weber   +7 more
wiley   +1 more source

Moderate to severe food insecurity from pregnancy to 18 months postpartum: a descriptive study, Pelotas, 2016-2020. [PDF]

Epidemiol Serv Saude
Ávila CN, Scholl CC, Coelho FT, Trettim JP, Matos MB, Ghisleni G, Ardais AP, Martins CSR, Motta JVDS, Pinheiro RT, Quevedo LA.   +10 more
europepmc   +1 more source

Pretreatment Effects of Conventional and Reactive Extrusion on LLDPE Waste Pyrolysis

Polymer Engineering &Science, EarlyView.
Schematic overview of the pyrolysis study using original and pretreated LLDPE waste samples. Pretreatment was performed via twin‐screw extrusion at 450°C: without additives (REX), with peroxide (REX‐RO2), or with polypropylene (REX–PP). All four samples underwent pyrolysis at 450°C–475°C for 15–45 min.
Yasmin Fialho Siqueira, Débora M. V. Miranda, Larissa L. A. Carvalho, Natasha K. Sitton, Ana Paula de Azeredo, Regina F. Nonemacher, Raquel S. Mauler, Luiz Eduardo P. Borges, José Carlos Pinto   +8 more
wiley   +1 more source

Graduate studies in Collective Health in Brazil: trajectories, evaluation, and challenges. [PDF]

Cad Saude Publica
Horta BL, Bousquat A, Ramos AN, Araujo CEL, Barradas RB, Werneck GL, Paes-Sousa R.   +6 more
europepmc   +1 more source

Biosurfactant production by Pseudomonas aeruginosa isolated from mining waste: From genomic analysis to development of a polymeric composite for removal of hexavalent chromium

Polymer International, EarlyView.
Biosurfactant was produced by Pseudomonas aeruginosa using andiroba waste from Amazonia. A biosurfactant–alginate composite (Alg/BioS) was successfully synthesized via ionotropic gelation, and achieved up to 70% Cr6+ removal from water. Abstract Environmental contamination by heavy metals represents a significant challenge due to their persistence in ...
Paulo Diniz Austriaco, Emilly Cruz da Silva, Glenda Sores Gomes, Joane Almeida Alves, Amanda Vidal, Leandro Argolo, Rafaela Ribeiro, Luciana Souza, José Augusto Pires Bitencourt, Leonardo Brasil Felipe, Leonie Asfora Sarubbo, Sidnei Cerqueira dos Santos   +11 more
wiley   +1 more source

Capital Social y Participación en los Programas Sociales

POLIS, 2008
openaire   +3 more sources

Synthesis and application of alginate@CuFe2O4 polymeric spheres in 17‐β‐estradiol adsorption processes in Amazonian rivers

Polymer International, EarlyView.
Magnetic alginate beads, functionalized with copper ferrite, effectively remove 17‐β‐estradiol from Amazonian water, exhibiting optimized 238.65 μg g−1 capacity, fast 40 min kinetics, easy recovery, and successful remediation. Abstract The presence of endocrine‐disrupting compounds, such as 17‐β‐estradiol, in aquatic ecosystems poses a significant ...
Dante S Silva, Adriano R. S Silva, Yasmin S Medeiros, José R Santos Neto, Jamily L dos Santos, Ananias L dos Santos, Roberta L. S Bernardino, Giulian César S Sá, Leandro A Pocrifka, Sidnei C dos Santos, Emilly C Silva   +10 more
wiley   +1 more source

Homicides in Peru: the importance of accurate and timely recording of causes of death. [PDF]

Rev Peru Med Exp Salud Publica
Hernández-Vásquez A, Ttito-Paricahua L, Asmat-Condormango R, Quiñones-Inga J.   +3 more
europepmc   +1 more source

Synergistic efforts in specimen digitisation, curation and cataloguing of Brazil's megadiverse flora and funga

PLANTS, PEOPLE, PLANET, EarlyView.
The advancement of digital technologies has brought a rapid global information exchange, impacting all areas of our lives. This also applies to science. Knowledge, conservation and scientific innovation on global biodiversity are being strengthened and disseminated at unprecedented scales.
Ana Flávia Alves Versiane, Fabiana Ranzato Filardi, Thuane Bochorny, Paula Leitman, Mariana Taniguchi, Felipe Alves de Oliveira, Luís Alexandre Estevão da Silva, Rafael Oliveira Lima, Domingos Cardoso, Rafaela Campostrini Forzza   +9 more
wiley   +1 more source

Beyond overdiagnosis: reframing autism prevalence through a neurodivergent phenotype lens. [PDF]

J Pediatr (Rio J)
Hauck S, de Oliveira LT.
europepmc   +1 more source