Description of the postcranial anatomy of Aulacephalodon baini and its possible relationship with 'Aulacephalodon peavoti'

2008 ◽  
Vol 104 (11/12) ◽  
Author(s):  
Romala Govender

A recent analysis of the postcranial anatomy of Triassic dicynodonts renewed interest in the anatomy of Aulacephalodon. This study focused initially on Aulacephalodon baini as it represents medium to large Permian dicynodonts but also took into account 'Aulacephalodon peavoti'. The postcranial skeletons of A. baini and 'A. peavoti' show several significant differences. The scapula blade of A. baini is more curved than and not as upright as in 'A. peavoti'. A. baini has a rectangular delto-pectoral crest and has a better developed olecranon. In the pelvic girdle the anterior process is higher than the posterior process of the ilium in A. baini and the acetabulum is directed more ventrally. The femoral head is separated from the greater trochanter in A. baini. A comparison also shows that both A. baini and 'A. peavoti' are different from Rhachiocephalus in that the latter has a widely expanded scapula blade and the proximal end of the humerus is wider than the distal. The glenoid is elliptical with a convex surface. Although it could not be conclusively decided what the taxonomic position of 'A. peavoti' is, this study provides information about the postcranial skeleton which could aid its detailed analysis. This study will also assist in clarifying the relationships as well as providing insight into the palaeobiology of these extinct tetrapods.

Author(s):  
Jozef Klembara ◽  
Marcello Ruta

ABSTRACTThe postcranial skeleton of Ariekanerpeton sigalovi (Seymouriamorpha: Discosauriscidae; Lower Permian, Tadzhikistan) differs from that of like-sized Discosauriscus specimens in showing: wider interclavicle anterior plate with smaller, rhomboidal sculptured field on its ventral surface not reaching plate posteromedial margins; broader interclavicle plate-stem junction; slightly narrower interclavicle posterior stem; anteroposteriorly narrower clavicle ventral plate with convex posterior margin; shorter, more robust humerus; four phalanges on fourth manus digit (five phalanges in Discosauriscus); ilium more elongate dorsoventrally with anteroposteriorly narrower neck; posterior process of iliac blade oriented distinctly posterodorsally rather than horizontally; more gracile atlantal rib; broadened distal end of second presacral rib. A revised cladistic analysis of the best known seymouriamorph species retrieves Ariekanerpeton either as sister group to both species of Discosauriscus, or to D. austriacus only.


2016 ◽  
Vol 15 (2) ◽  
pp. 567-584
Author(s):  
Clare Sandford-Couch

Taking an interdisciplinary approach the article offers a fresh legal historical understanding of the Fifth Story of the Eighth Day in Giovanni Boccaccio’s Decameron. Detailed analysis of the tale reveals much about the realities of the administration of justice in fourteenth century Florence and contemporary expectations of those exercising judicial authority. In making apparent the expectation that judges would look and act in a certain manner, the article suggests that Boccaccio’s story can be interpreted as offering an insight into the extent to which public perception of a man’s identity as a judge was dependent upon his appearance and attire.


Author(s):  
Sekhar Kondepudi ◽  
Ramita Kondepudi

This chapter provides an insight into what is meant by a Smart City and the underlying factors that make a city smart. The authors answer the question of “what constitutes a smart city” by presenting a multi-faceted approach including a detailed analysis of classical smart city definitions, attributes of a smart city, industry viewpoints and efforts by standards developing organizations. Through this approach, a common theme is established which best describes a smart city. The content of this chapter can therefore form the basis of developing a standard definition of a global smart city, and subsequently can be used to develop a framework to measure the performance of a smart city. The authors also propose a definition which in their view provides a reasonably holistic description of a smart city. However, they recognize that a smart city may mean different things to different stakeholders, and therefore has a strong dependence on the “lens” through which a smart city is viewed.


Author(s):  
Sekhar Kondepudi ◽  
Ramita Kondepudi

This chapter provides an insight into what is meant by a Smart City and the underlying factors that make a city smart. The authors answer the question of “what constitutes a smart city” by presenting a multi-faceted approach including a detailed analysis of classical smart city definitions, attributes of a smart city, industry viewpoints and efforts by standards developing organizations. Through this approach, a common theme is established which best describes a smart city. The content of this chapter can therefore form the basis of developing a standard definition of a global smart city, and subsequently can be used to develop a framework to measure the performance of a smart city. The authors also propose a definition which in their view provides a reasonably holistic description of a smart city. However, they recognize that a smart city may mean different things to different stakeholders, and therefore has a strong dependence on the “lens” through which a smart city is viewed.


2020 ◽  
Vol 11 ◽  
pp. S522-S525
Author(s):  
Arvind Kumar ◽  
Jigyasa Passey ◽  
Mukesh Kumar ◽  
Dushyant Chouhan ◽  
Manish Saini ◽  
...  

2009 ◽  
Vol 5 (S262) ◽  
pp. 205-208
Author(s):  
Anna Gallazzi

AbstractThe age and chemical composition of the stars in present-day galaxies carry important clues about their star formation processes. The latest generation of population synthesis models have allowed to derive age and stellar metallicity estimates for large samples of low-redshift galaxies. After reviewing the main results about the distribution in ages and metallicities as a function of galaxy mass, I will concentrate on recent analysis that aims at disentangling the dependences of stellar populations properties on environment and on galaxy stellar mass. Finally, new models that predict the response of the full spectrum to variations in [α/Fe] will allow us to derive accurate estimates of elements abundance ratios and gain deeper insight into the timescales of star formation cessation.


Diachronica ◽  
2012 ◽  
Vol 29 (1) ◽  
pp. 72-97 ◽  
Author(s):  
Alexandra Stavinschi

The paper provides a structured account of the evolution of the Romance pronominal/adnominal demonstrative systems, using both the analysis of medieval corpora and recent fieldwork. It identifies the mechanisms involved, building on a detailed analysis of the textual and extra-textual usage of demonstratives, which gives new insight into the nature of deixis and anaphora. The evidence shows that the genetic relation between deictics and anaphorics is not unidirectional: not only can anaphors originate from deictics, the reverse can also be shown to hold true, with pure anaphorics appearing to be a viable source for second-person deictics. The main driving force in the process is subjectification, which conditions the development at every stage. The evolution follows predictable pathways and turns out to be cyclic: three main recurrent patterns are clearly identifiable for all the varieties investigated.


2020 ◽  
Vol 24 (4) ◽  
pp. 796-815
Author(s):  
Mohammad Alipour ◽  
Parastoo Jahanbin

The study is aimed at gaining further insight into the concept of proximity and its contribution to text development in general and newspaper editorials in particular. It also furthers our understanding of cross-linguistic differences in the use of metadiscourse. Therefore, the purpose of this study was to investigate and compare proximity elements in Iranian and American newspaper editorials. Following Hyland's proximity model (2010a) which comprises five major elements, organization, argumentative structure, stance, engagement, and credibility , we focused on a detailed analysis of proximity features in two corpora, Iranian newspaper editorials and American newspaper editorials. To this aim, 240 newspaper editorials, including 120 editorials from each category, were collected. The outcomes revealed that there were significant differences in the use of proximity elements in the mentioned corpora. It was demonstrated that stance markers were considerably more recurrent in the American data than their Iranian counterpart. Unlike the American editorials, the Iranian ones contained a larger number of engagement markers. The key reasons behind such discrepancies are discussed in terms of differences in cultural, social, and political backgrounds. This study can be helpful for English for Specific/Academic Purposes (ES/AP) learners who study journalistic English to become familiar with proximity.


Sign in / Sign up

Export Citation Format

Share Document