Results 81 to 90 of about 212,616 (300)

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

Economic growth in Argentina in the period 1900-30: some evidence from stock returns [PDF]

open access: yes
This paper reports the first stage of a project to recover Argentine stock market data for the entire 20th century. The authors find that real rates of return on Argentine stocks and bonds after 1920 were above those in the Belle Époque, and that they ...
Carlos E.J.M. Zarazaga   +1 more
core  

Comparing Fiscal (De)Centralization and Multilevel Governments in Different Institutional Settings: A comparative study of Argentina and Denmark (2000-2010). European Diversity and Autonomy Papers EDAP 02/2020 [PDF]

open access: yes, 2020
The magnitude and complexity of the different processes of decentralization that took place around the world in the last five decades, involving all types of states (unitary and federal, as well), has challenged the concepts and the traditional ...
Altavilla , Cristian
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

La herencia de la guerra: Salta (Argentina) 1821-1831

open access: yesNuevo mundo - Mundos Nuevos, 2012
This article proposes a first approach to political participation of movilized men during independent war in Salta's jurisdiction, Argentina*. Our aim is to enter upon the compex political and social inheritance brought by the war.
Sara Emilia Mata
doaj   +1 more source

Revisiting a long‐overlooked skull: Implications for the distribution of Dinodontosaurus brevirostris (Kannemeyeriiformes) in the Brazilian Triassic

open access: yesThe Anatomical Record, EarlyView.
Abstract Dicynodonts (Anomodontia: Dicynodontia) were one of the main groups of terrestrial tetrapods in Permian and Triassic faunas. In Brazil, the genus Dinodontosaurus is one of the most common tetrapod taxon in the Triassic Santa Maria Supersequence. This genus has a complex taxonomic history and is represented in the Triassic of both Argentina and
Julia Lara Rodrigues de Souza   +5 more
wiley   +1 more source

Argentine Command Structure and its Impact on Land Operations during the Falklands/Malvinas War (1982) [PDF]

open access: yes
This paper claims that besides training and equipment shortcomings, Argentine command structure was another source of problems that affected the military operations during the Falklands/Malvinas Campaign during April-June 1982.
Alejandro Luis Corbacho
core  

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

open access: yesThe Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

PSO algorithm-based robust design of PID controller for variable time-delay systems: AQM application

open access: yesJournal of Computer Science and Technology, 2015
This paper formulates a robust control for variable time-delay system models. An automatic tuning method for PID-type controller is proposed. The adopted method integrates robust control design using Quantitative Feedback Theory (QFT) with Particle Swan ...
Patricia Noemí Baldini   +3 more
doaj  

Political Forecasting? The IMF's Flawed Growth Projections for Argentina and Venezuela [PDF]

open access: yes, 2007
This report examines the International Monetary Fund's (IMF) projections for economic growth for Argentina and Venezuela in recent years. It shows that the IMF consistently made large errors in overestimating Argentina's GDP growth for the years 2000 ...
David Rosnick, Mark Weisbrot
core  

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