Results 41 to 50 of about 2,258 (233)

Optimum Shape, Failure Load and Buckling Load of Persian Historical Brick Masonry Domes [PDF]

open access: yesمسکن و محیط روستا, 2016
The building of domes in Persia dates back to the third millennium B.C. Since then, the architecture of Persia has produced many types of dome structures using traditional methods to make the best forms of domical shapes.
Mehrdad Hejazi   +2 more
doaj  

Double-crowned valved stents for off-pump mitral valve replacement☆ [PDF]

open access: yesEuropean Journal of Cardio-Thoracic Surgery, 2005
An animal model has been designed to assess the feasibility of off-pump mitral valve replacement using valved stents.Glutaraldehyde-preserved homograft was sutured inside a prosthetic tube (Dacron). Then, two self-expandable nitinol Z-stents were sutured on the external surface of the prosthesis in such a way to create two self-expanding crowns for ...
Ma, Liang   +5 more
openaire   +3 more sources

Tooth Contact Analysis of Profile-Shifted Face Gear with Double-Crowned Pinion

open access: yesJixie chuandong, 2015
The coordinate systems for the processing and driving of the profile-shifted spur pinion with double-crowned and the profile-shifted face gear are established,the tooth surface equations of the profile-shifted pinion and the profile-shifted face gear are
Li Wei, Wang Dan, Fu Xuezhong
doaj  

Archaeological Analysis of the Newly Discovered Tomb with a Relief of a Couple at the Funerary Area of Porta Sarno in Pompeii

open access: yesHeritage
In July 2024, the “Investigating the Archaeology of Death in Pompeii Research Project” carried out a scientific and methodical excavation of the areas outside two of the gates to the city of Pompeii.
Llorenç Alapont   +12 more
doaj   +1 more source

A dependence on politics: Fernando Henrique Cardoso and sociology in Brazil

open access: yesTempo Social, 2005
This article analyzes Fernando Henrique Cardoso's social, intellectual and professional trajectory in order to understand the different social resources and personal dispositions carried out in his career as sociologist or in his activities as a ...
Afrânio Garcia Jr., Deborah Neale
doaj  

T. rex cognition was T. rex‐like—A critical outlook on diverging views of the neurocognitive evolution in dinosaurs

open access: yesThe Anatomical Record, EarlyView.
Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen   +7 more
wiley   +1 more source

Nowe miasto tkackie? Szkic do dziejow społeczno-gospodarczych podkrakowskiego Kazimierza

open access: yesKwartalnik Historii Kultury Materialnej, 2015
A NEW TOWN OF WEAVERS? SOME PRELIMINARIES TO THE SOCIO-ECONOMIC HISTORY OF KAZIMIERZ NEAR CRACOW This article, inspired by Marek Słoń’s monograph Miasta podwójne i wielokrotne w średniowiecznej Europie [Double and multiple towns in mediaeval Europe ...
Marcin Starzyński, Michał Schmidt
doaj  

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

open access: yesThe Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman   +4 more
wiley   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

The cranial, mandibular, and hyoid anatomy of softshell turtles (Trionychidae): A revised character list for phylogenetic analysis

open access: yesThe Anatomical Record, EarlyView.
Abstract Softshell turtles (Pan‐Trionychidae) are an early branching clade of hidden‐necked turtles (Cryptodira) with a rich fossil record extending back to the Early Cretaceous. The evolutionary history of softshell turtles is still unresolved because of their conservative morphology combined with high levels of polymorphism related to morphological ...
Léa C. Girard, Walter G. Joyce
wiley   +1 more source

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