Skeleton
Mostrando 13-24 de 599 artigos, teses e dissertações.
-
13. An overview of the appendicular skeletal anatomy of South American titanosaurian sauropods, with definition of a newly recognized clade
Abstract: In the last two decades, the number of phylogenetically informative anatomical characters recognized in the appendicular skeleton of titanosaurian sauropod dinosaurs has increased dramatically with the discovery of new and comparatively complete specimens. Here we provide an overview of the appendicular skeletal morphology of South American titanos
An. Acad. Bras. Ciênc.. Publicado em: 22/07/2019
-
14. A Microwave-Enhanced Synthesis and Biological Evaluation of N-Aryl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d ]pyrimidin-4-amines
A series of N-aryl-5,6,7,8-tetra-hydrobenzo[4,5]thieno[2,3-d ]pyrimidin-4-amines were synthesized in moderate to good yield by using a microwave-enhanced conditions. The selected compounds were evaluated for their cytotoxic effects (IC50 values) on human pulmonary carcinoma (A549), murine BALB/c spontaneous colon adenocarcinoma (CT26) and human hepatocellula
J. Braz. Chem. Soc.. Publicado em: 04/07/2019
-
15. New Material of Sinopterus (Pterosauria, Tapejaridae) from the Early Cretaceous Jehol Biota of China
Abstract: Tapejaridae is a clade of toothless pterosaurs typically characterized by a large nasoantorbital fenestra and a premaxillary crest that extends from the anterior to the posterior part of the skull. Sinopterus dongi was the first reported Chinese tapejarid. Another genus “Huaxiapterus” was described, but it was later on determined that “Huaxia
An. Acad. Bras. Ciênc.. Publicado em: 27/06/2019
-
16. Avascular necrosis: radiological findings and main sites of involvement - pictorial essay
Resumo Necroses avasculares são um grupo de doenças ósseas que possuem como via comum a morte dos constituintes dos ossos por falta de suprimento vascular. Podem ocorrer nas mais diversas partes do esqueleto, recebendo não somente denominações distintas, como também apresentam epidemiologia única em cada uma dessas localizações. Seus achados nos m�
Radiol Bras. Publicado em: 13/06/2019
-
17. A Note on the Matching Polytope of a Graph
RESUMO O politopo de emparelhamentos de um grafo G, denotado por ℳ (G), é o fecho convexo do conjunto dos vetores de incidência dos emparelhamentos de G. O grafo �� (ℳ (G)), cujos vértices e arestas são os vértices e arestas de ℳ (G), é o esqueleto do politopo de emparelhamentos de G. Neste artigo, para um grafo arbitrário, nós provamos que
TEMA (São Carlos). Publicado em: 10/06/2019
-
18. Macro-anatomy of the Bones of Thoracic Limb in Dalmatian Pelican (Pelecanus crispus)
ABSTRACT In this study, the bones forming the poultry skeleton of the Dalmatian pelican were macroscopically examined. For this purpose, three Dalmatian pelicans were used. In the Dalmatian pelicans, the shoulder girdle (Ossa cinguli membri thoracici) is formed by the scapula, os coracoideum and clavicula bones. The scapula bone was short and flat. The humer
Braz. J. Poult. Sci.. Publicado em: 18/04/2019
-
19. Discovery of N-arylsulfonyl-3-acylindole benzoyl hydrazone derivatives as anti-HIV-1 agents
The discovery and development of novel inhibitors with activity against variants of human immunodeficiency virus type 1 (HIV-1) is pivotal for overcoming treatment failure. As our ongoing work on research of anti-HIV-1 inhibitors, 32 N-arylsulfonyl-3-acylindole benzoyl hydrazone derivatives were prepared by introduction of the hydrazone fragments on the N-ar
Braz. J. Pharm. Sci.. Publicado em: 08/04/2019
-
20. Behaviour of hollow circular section with multiple perforations under compression, flexure and torsion
Abstract Effect of the presence of perforations on thin structure has been extensively investigated for decades. Various perforation parameters were investigated in past studies. However, study on thin cylinder with multiple perforations has not been carried out. In searching for lighter structural members, the concept of perforated hollow section has been i
Lat. Am. j. solids struct.. Publicado em: 14/03/2019
-
21. The link between ankylosing spondylitis and oral health conditions: two nested case-control studies using data of the UK Biobank
Abstract Ankylosing Spondylitis (AS) is an inflammatory rheumatic disease that affects the axial skeleton and the sacroiliac joints. Recent studies investigated the link between AS and oral diseases, particularly periodontitis. Others suggested that periodontitis may have a role in the pathogenesis of rheumatic diseases. Objective: The aim of this study is t
J. Appl. Oral Sci.. Publicado em: 08/11/2018
-
22. Acetylcholinesterase inhibition and antimicrobial activity of hydroxyl amides synthesized from natural products derivatives
ABSTRACT Thirteen natural products derivatives of hydroxyl amide class, three described for the first time, were synthesized by reaction of three indole acids and 3,4,5-trimethoxybenzoic acid with six different amino alcohols in the presence of triphenylphosphine and N-bromosuccinimide. The derivatives were tested against the Gram (+) bacteria Staphylococcus
An. Acad. Bras. Ciênc.. Publicado em: 25/06/2018
-
23. Phenylethylpyranone and Aristolochic Acid Derivatives from Aristolochia urupaensis
A new pyranone, (S)-2-(4-hydroxyphenylethyl)-6-methyl-2,3-dihydro-4H-pyran-4-one, with unusual carbon skeleton, and three new aristolochic acid derivatives (7-O-methylaristolochic acid F, sodium 7-O-methylaristolochate F and sodium aristolochate F) were isolated from Aristolochia urupaensis (Aristolochiaceae) stems together with 31 known compounds. The struc
J. Braz. Chem. Soc.. Publicado em: 2017-11
-
24. Morphology of the axial skeleton of seven bat genera (Chiroptera: Phyllostomidae)
ABSTRACT Here we present detailed descriptions and comparisons of the axial skeleton of seven species of bats belonging to five subfamilies of Phyllostomidae of different trophic guilds. The material examined consisted of 34 complete skeletons of seven species. For five of the studied species, previous descriptions have not been conducted, and for the vampir
An. Acad. Bras. Ciênc.. Publicado em: 26/10/2017