Results 81 to 90 of about 580,839 (314)

Comparative and functional anatomy of masticatory muscles and bite force in opossums (Didelphimorphia, Didelphidae)

open access: yesThe Anatomical Record, EarlyView.
We describe the functional anatomy of masticatory muscles in nine opossums, finding a generalized anatomical pattern with differences related to skull morphology. Variation in quantitative myological data and estimated bite force was mostly related to size, and the increase in bite force supports dietary diversification associated with size increase ...
Juann A. F. H. Abreu, Diego Astúa
wiley   +1 more source

The Rise of the Southern Economies: Implications for the WTO-Multilateral Trading System [PDF]

open access: yes
The rise of the emerging southern economies ? China, India, Brazil, and South Africa (CIBS) ? as both economic and political actors, is having significant and far-reaching impact on the world economy.
Nenci, Silvia
core  

The distribution and synonyms of Breutelia microdonta (Mitt.) Broth. : with additional notes on certain taxa of Breutelia [PDF]

open access: yes, 1992
Breutelia microdonta (Mitt.) Broth., described originally from Brazil, is the oldest name for a disjunct widespread tropical species that includes as synonyms B. angustifolia Rehm. ex Sim of Southern Africa and B. merrillii Broth.
Griffin, Dana
core  

Abyssal Atlantic circulation during the Last Glacial Maximum: Constraining the ratio between transport and vertical mixing [PDF]

open access: yes, 2010
The ocean’s role in regulating atmospheric carbon dioxide on glacial‐interglacial timescales remains an unresolved issue in paleoclimatology. Reduced mixing between deep water masses may have aided oceanic storage of atmospheric CO_2 during the Last ...
Andrews   +50 more
core   +2 more sources

Histovariability and fossil diagenesis of Pissarrachampsa (Pseudosuchia, Notosuchia, Baurusuchidae) from the Upper Cretaceous of Southeast Brazil

open access: yesThe Anatomical Record, EarlyView.
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.
Tito Aureliano   +5 more
wiley   +1 more source

Predicting biological parameters of estuarine benthic communities using models based on environmental data

open access: yesBrazilian Archives of Biology and Technology, 2004
This study aimed to predict the biological parameters (species composition, abundance, richness, diversity and evenness) of benthic assemblages in southern Brazil estuaries using models based on environmental data (sediment characteristics, salinity, air
José Souto Rosa-Filho   +2 more
doaj   +1 more source

Organic Agriculture as Livelihood Strategy: A Case Study in a Rural Community of Southern Brazil [PDF]

open access: yes, 2008
This paper presents the findings of a case study of a Brazilian community pursuing a livelihood strategy based on certified organic agriculture. Using the sustainable rural livelihoods framework, the paper identifies three different organic livelihood ...
Egelyng, Henrik   +1 more
core  

Morphological and morphometric aspects of the equine aortic valve: New insights for comparative studies in mammals

open access: yesThe Anatomical Record, EarlyView.
Abstract New data on the equine aortic valve obtained using advanced techniques is especially important given the greater availability of animal models for translational research. Here we characterized the morphological and morphometric aspects of the equine aortic valve from 60 healthy hearts collected at equine abattoirs.
Vitor Pires Pereira   +3 more
wiley   +1 more source

The genetic status of Sorocea bonplandii in the highly fragmented forest in southern Brazil. [PDF]

open access: yes, 2015
Sorocea bonplandii is a dioecious sub canopy plant species with an abundant and widespread distribution in the Atlantic Forest, Southern Brazil. It is traditionally used for art crafts and popular medicine.
BERNARD, F.   +3 more
core  

Inside a duck‐billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia

open access: yesThe Anatomical Record, EarlyView.
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
Tito Aureliano   +3 more
wiley   +1 more source

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