Results 31 to 40 of about 853 (136)

Micro‐CT informed cranial anatomy of the early rhynchosaur Howesia browni, with implications for rhynchosaur skull evolution

Papers in Palaeontology, Volume 12, Issue 4, July/August 2026.
Abstract Rhynchosaurs are unusual archosauromorph reptiles that lived between the Induan and early Norian (Early to early Late Triassic). They are characterized by their stocky build and broad skull with a beak‐like premaxilla. This rather charismatic configuration is most clearly expressed in Late Triassic hyperodapedontine rhynchosaurids.
Stephan N. F. Spiekman, Claire Browning, Muofhe Tshibalanganda, Debarati Mukherjee, Roger M. H. Smith, Anton Du Plessis, Frederik Wolvaardt   +6 more
wiley   +1 more source

movimento “Todos Pela Educação”

Colloquium Humanarum, 2020
O texto é uma resenha da tese de Dalessandro de Oliveira Pinheiro, defendida no ano de 2018, no Programa de Pós-Graduação em Educação da Universidade Federal do Paraná, sob orientação da professora doutora Monica Ribeiro da Silva.
Raquel Hissae Nagase
doaj  

PCR-RFLP analysis of non-coding regions of cpDNA in Araucaria angustifolia (Bert.) O. Kuntze

Genetics and Molecular Biology, 2007
The Araucaria angustifolia (Bert.) O. Kuntze, also named the "paraná pine" (‘pinheiro-do-Paraná’ in Portuguese), is a native conifer species naturally occurring in the Brazilian Tropical Atlantic Forest which in Brazil is mostly limited to the southern ...
Paulo Sérgio Schlögl, Anete Pereira de Souza, Rubens Onofre Nodari   +2 more
doaj   +1 more source

Integrative taxonomy reveals two new species of whiptail catfishes Loricaria (Siluriformes: Loricariidae) from northeastern Brazil

Journal of Fish Biology, Volume 108, Issue 6, Page 2080-2097, June 2026.
Abstract Two new species of whiptail catfish, Loricaria (Siluriformes: Loricariidae), were discovered in the Munim and Itapecuru river basins, Maranhão State, northeastern Brazil, through an integrative taxonomic approach combining morphology and mitochondrial DNA.
Ananda. C. Serejo‐Saraiva, Nivaldo M. Piorski, Felipe P. Ottoni, Mark H. Sabaj, Sergio M. Q. Lima   +4 more
wiley   +1 more source

Moderate Fire Temperatures Affect the Structure of Clayey Oxisol Aggregates

Land Degradation &Development, Volume 37, Issue 8, Page 3169-3181, 15 May 2026.
ABSTRACT Wildfires have become increasingly frequent and intense worldwide, raising concerns about their impacts on soil systems. However, the thermal responses of clay‐rich Oxisols, dominated by Fe and Al oxides, remain poorly understood. In this study, samples from the 0 to 5 cm layer of six Oxisols were subjected to controlled heating at ...
Yasmmin Tadeu Costa, Paulo Angelo Fachin, Bruno Teixeira Ribeiro, Edivaldo Lopes Thomaz, Alberto Vasconcellos Inda Junior, Nilton Curi   +5 more
wiley   +1 more source

Uso de crack, adolescentes e masculinidades no Brasil contemporaneo: uma leitura a partir da cidade de Ponta Grossa, estado do Paraná, Brasil [PDF]

Estudios Socioterritoriales: Revista de Geografía, 2017
O objetivo do presente artigo é compreender como se institui a vivência cotidiana de adolescentes do sexo masculino usuários de crack nas espacialidades da Vila e da Casa, na periferia de Ponta Grossa-Paraná. Foram realizadas entrevistas em profundidade,
Heder Leandro Rocha
doaj  

On traits matching and the modular organization of food web and occurrence networks

Journal of Animal Ecology, Volume 95, Issue 5, Page 837-850, May 2026.
What mechanisms shape ecological networks? In Paraná River piscivores, species traits and abundance scaling promote modular structures. Our findings reveal how communities self‐organize and highlight the conditions needed to sustain them. Abstract Modularity and nestedness have been observed recurrently across different ecological networks, including ...
Dalmiro Borzone Mas, Pablo A. Scarabotti, Pablo A. Vaschetto, Patricio Alvarenga, Martin Vazquez, Matías Arim   +5 more
wiley   +1 more source

Amido no megagametófito de Araucaria angustifolia (Bert.) O. Ktze: degradação durante a germinação e desenvolvimento do esporófito Starchy reserve of the megagametophyte of Araucaria angustifolia (Bert.) O. Ktze: mobilization during germination and on the developing sporophyte

Acta Botânica Brasílica, 1994
O pinheiro brasileiro possui um diásporo de grandes dimensões, o pinhão, rico em reservas amiláceas. A mobilização dessas reservas pelo embrião foi quantificada em secções transversais do megagametófito, em cinco estágios de desenvolvimento da plântula ...
Rosa Maris Rosado, Alfredo Gui Ferreira, Jorge Ernesto de Araujo Mariath, Alfredo Elio Cocucci   +3 more
doaj   +1 more source

Modulatory Effects of Cirsimarin on Lung Cancer A549 Cells Migration in 2D and 3D Cultures Involves Transcriptional Regulation of Metalloproteinases

Journal of Biochemical and Molecular Toxicology, Volume 40, Issue 3, March 2026.
In 2D culture, the cirsimarin (i) decreased cell viability in both assays, (ii) induced apoptosis, (iii) reduced clonogenicity, (iv) prevented cell migration, (v) induced DNA damage, and (vi) negatively modulated gene expression. In the 3D model, reductions in spheroid viability, area, and cell migration were also observed.
Anna Gabriele Prado dos Santos, Celina Yung‐Ai Lin Lee, Érica Romão Pereira, Andresa Hiromi Sakai, Diego Luís Ribeiro, Victor Antônio Silva Lima, Marcos Bispo Pinheiro Camara, Cláudia Quintino da Rocha, Sabine A. S. Langie, Ilce Mara de Syllos Cólus, Juliana Mara Serpeloni   +10 more
wiley   +1 more source

QUALIDADE FISIOLÓGICA DE SEMENTES DE Araucaria angustifolia (Bertol.) Kuntze SUBMETIDAS A DIFERENTES CONDIÇÕES DE ARMAZENAMENTO E A ESCARIFICAÇÃO [PDF]

Ciência Florestal, 2006
As sementes de Araucaria angustifolia (Bertol.) Kuntze (pinheiro-do-Paraná) são recalcitrantes e, portanto, perdem rapidamente a viabilidade após a colheita, o que dificulta a sua utilização na produção de mudas. Este trabalho teve como objetivos avaliar
Álvaro Valente Caçola, Cassandro Vidal Talamini do Amarante, Frederico Dimas Fleig, Clenilso Sehnen Mota   +3 more
doaj