Results 41 to 50 of about 244 (126)

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

The Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini, Pedro L. B. Pruciano, Brodsky D. M. Farias, Marina B. Soares   +3 more
wiley   +1 more source

Análise de uma exposição científica e proposta de intervenção [PDF]

Revista Brasileira de Ensino de Física, 2003
A proposta desse trabalho é a de analisar e intervir numa exposição de termodinâmica da Estação Ciência. Recorremos à investigação da linguagem dos monitores da Estação Ciência na explicação dos experimentos para ajudar no aperfeiçoamento da exposição ...
Adriano M. Stuchi, Norberto Cardoso Ferreira   +1 more
doaj   +1 more source

New fossil unveils the dentary anatomy of the rare lepidosauromorph Cargninia enigmatica from the Upper Triassic of Southern Brazil

The Anatomical Record, EarlyView.
Abstract Nowadays, Lepidosauria is a diverse group represented by squamates and the rhynchocephalian tuatara. However, their origins date back to the end of the Permian Period, when the stem lineages Lepidosauromorpha and Archosauromorpha diverged. Within the lepidosauromorph stem lineage, a few species have been described with unstable phylogenetic ...
Lísie Vitória Soares Damke, Vitória Zanchett Dalle‐Laste, Leonardo Kerber, Lúcio Roberto‐da‐Silva, Rodrigo Temp Müller   +4 more
wiley   +1 more source

MEDIAÇÃO: SIGNIFICAÇÕES, USOS E CONTEXTOS.

Ensaio Pesquisa em Educação em Ciências
Este trabalho apresenta um conjunto de reflexões acerca do conceito de mediação e mediador em museus de ciência e tecnologia e centros de ciências (Science Centers), com o objetivo de inserir elementos teóricos que contribuam para ampliação e ...
Simone Pinto, Guaracira Gouvêa
doaj   +1 more source

Osteology of the pectoral girdle and forelimb of Siriusgnathus niemeyerorum, a Late Triassic traversodontid cynodont from Brazil

The Anatomical Record, EarlyView.
Abstract Traversodontids are non‐mammaliaform cynodonts, herbivorous to omnivorous, that lived during the Triassic. In the Late Triassic, some members of this group increased in body size relative to other cynodont lineages and evolved postcranial adaptations associated with locomotion.
Jhonata H. A. Martins, Leonardo Kerber
wiley   +1 more source

Alexandre Herculano’s “A abóbada (1401)”: a parodied forgery and coarse replicas of a patriotic narrative about Batalha

Revista de História da Sociedade e da Cultura
This article focuses on the short story “A abóbada (1401)” (The vault [1401]) by the Portuguese author Alexandre Herculano with a view to analyse the origin and development of a narrative that established national and international debates on the ...
Pedro Redol
doaj   +1 more source

A plant–pollinator invasional meltdown: the Japanese pagoda tree Styphnolobium japonicum facilitates the invasion of the giant resin bee Megachile sculpturalis

Oikos, EarlyView.
An invasional meltdown can occur when a non‐native species facilitates the spread of another non‐native species in the invaded area, increasing its likelihood of survival or its ecological impact. Plant–pollinator systems pose an exceptional study system to test this concept, which remains poorly known.
Daniel Echeandía, Jordi Margalef‐Marrasé, Marc Riera, Jordina Belmonte, Julia Lanner, Sonja Mader, David Navarro, Ricardo Caliari Oliveira, Rut Puigdemunt, Carlos Hernández‐ Castellano   +9 more
wiley   +1 more source

Beyond forests: Harnessing conservation gardening for open biomes in Brazil

PLANTS, PEOPLE, PLANET, EarlyView.
Urban gardening offers an innovative conservation strategy by integrating native ornamental species into urban landscapes. We evaluated the ornamental potential of the Brazilian flora by comparing the representation of species from forests versus open biomes (focusing on campo rupestre grasslands) and introduced and validated the Index of Ornamental ...
Flávia Santos Faria, Luciane Vilela Resende, Fernando A. O. Silveira   +2 more
wiley   +1 more source

Seasonal Variation in Carbon Dynamics in the Lower Tocantins River: Influence of Discharge and Environmental Drivers

River Research and Applications, EarlyView.
ABSTRACT Tropical rivers play a key role in regional carbon budgets, yet greenhouse gas (GHG) dynamics in regulated systems remain poorly understood. This study investigates the seasonal variability of carbon dioxide (CO2) and methane (CH4) concentrations, isotopic composition (δ13C), and river‐atmosphere fluxes in the lower Tocantins River, a ...
Maria Gabriella da S. Araújo, Vania Neu, Victor M. Guedes, Marcelo Z. Moreira, Nicholas D. Ward, Alex V. Krusche   +5 more
wiley   +1 more source

Presence of Nationally Banned Carbamates and Organophosphate Pesticides in Wild Carnivores, Southeastern Brazil

Environmental Toxicology, EarlyView.
ABSTRACT As top predators, terrestrial carnivores face great risk of pesticide exposure and serve as sentinels of environmental contamination. Additionally, terrestrial carnivores are frequently threatened by intentional or secondary poisoning with highly toxic compounds, such as carbamates and organophosphates.
Marina Pellegrino da Silva, Vagner Gonçalves‐Junior, Mauricio Candido da Silva, André Rinaldi Fukushima, Rose Lilian Gasparini‐Morato, Helenice de Souza Spinosa, Ana Carolina Ewbank, Carlos Sacristán, Ana de la Torre, José Luiz Catão‐Dias, Pedro Enrique Navas‐Suárez   +10 more
wiley   +1 more source