Results 11 to 20 of about 4,795 (153)
Histovariability and fossil diagenesis of Pissarrachampsa (Pseudosuchia, Notosuchia, Baurusuchidae) from the Upper Cretaceous of Southeast Brazil. [PDF]
Anat Rec (Hoboken)Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Aureliano T +5 more
europepmc +2 more sources
Biochemical Characterization of a Kunitz-Type Protease Inhibitor From Mimosa regnellii and Its Effects on Melanoma Cell Viability and Angiogenesis. [PDF]
Chem BiodiversA Kunitz‐type serine protease inhibitor (JTI) purified from Mimosa regnellii seeds selectively targets melanoma cells. JTI triggers mitochondrial apoptosis, increases ROS and Ca2+ levels, arrests the cell cycle, and suppresses migration and angiogenesis without affecting healthy cells.
Rabêlo LMA +12 more
europepmc +2 more sources
Several occurrences of osteomyelitis in dinosaurs from a site in the Bauru Group, Cretaceous of Southeast Brazil. [PDF]
Anat Rec (Hoboken)Abstract This study investigates the occurrence of osteomyelitis in non‐avian dinosaurs, focusing on the Ibirá locality, a site with a high incidence of this pathological condition. We analyzed six new osteopathic sauropod specimens from the Upper Cretaceous of Brazil.
Aureliano T +3 more
europepmc +2 more sources
Biodiversidade Brasileira, 2019 Na Amazônia, as áreas conhecidas como "Arco do Desmatamento" concentram os incêndios florestais e queimadas no Brasil. O desmatamento e a degradação de florestas por incêndios e queimadas são os processos responsáveis pela maior parte das emissões ...
Rossano Marchetti Ramos +3 more
doaj +3 more sources
Atmosphere, 2022 Climate change is undeniable, and its effects, like droughts and intense precipitation, evidence this reality. However, many questions remain unanswered, such as climate extremes’ future frequency and intensity.
Michelle Simões Reboita +5 more
doaj +1 more source
Inside a duck-billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia. [PDF]
Anat Rec (Hoboken)Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Aureliano T +3 more
europepmc +2 more sources
Emergence and growth of maize submitted to inoculant doses associated with saline water irrigation
Pesquisa Agropecuária Tropical, 2020 Salinity, in general, affects the plant growth and development, making it a limiting problem for the agricultural production. This study aimed to evaluate the effect of inoculant doses of Azospirillum brasilense on the emergence and growth of ...
Hallyson Oliveira +4 more
doaj +1 more source
Orbital: The Electronic Journal of Chemistry, 2019 Yeasts are exposed to stressing agents in the fermentation process. The study aims to analyze the production of ethanol and intracellular glycerol, as well as to evaluate the consumption of amino acids by yeast FT-858 in different culture conditions ...
Larissa Pires Mueller +3 more
doaj +3 more sources
Biodiversidade Brasileira, 2020 This work brings the experience of the Indigenous Land (IT) Araribóia and surrounding municipalities, as a way to minimize the environmental impacts caused by the high rate of fires that this area has presented, threatening the conservation of the ...
Ana Rosa Marques +2 more
doaj +3 more sources
Queima técnica de roças e o conhecimento indígena do uso do fogo no lavrado de Roraima - Brasil
Biodiversidade Brasileira, 2019 O modelo de agricultura preponderante em terras indígenas na Amazônia e por extensão no estado de Roraima preconiza a derrubada da vegetação de pequenas áreas, geralmente em florestas, ilhas de matas e matas ciliares, seguido pela queima desse ...
Joaquim Parimé Pereira Lima +1 more
doaj +3 more sources