Results 151 to 160 of about 1,176,454 (314)

Reversal in the Trend of Global Anthropogenic Sulfur Emissions [PDF]

open access: yes
Global anthropogenic sulfur emissions increased until the late 1980s. Existing estimates for 1995 and 2000 show a moderate decline from 1990 to 1995 or relative stability throughout the decade.
David I. Stern
core  

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

open access: yesThe Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

Recent trends in the world economy: a case study of Africa [PDF]

open access: yes
In 2006, world economic growth improved slightly to 3.8 per cent from 3.5 per cent in 2005. Globally, growth rates were highest in South-east Europe, Commonwealth of Independent States, and countries in East and South Asia.
Rena, Ravinder
core   +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

The Spatial Hierarchy of Technological Change and Economic Development in Europe [PDF]

open access: yes
This paper discusses the possibility of a spatial hierarchy of innovation and growth dynamics in Europe. A spatial hierarchy is understood as a geographical clustering of regions, where important differences exist in terms of innovation and growth ...
Verspagen, Bart
core  

The skeleton of the green Iguana iguana (Squamata: Iguanidae) and its intraspecific morphological variation

open access: yesThe Anatomical Record, EarlyView.
Abstract The green iguana (Iguana iguana) is an iguanine lizard with herbivorous and arboreal habits, whose distribution spans through South America, Central America to the south of North America. Although the genus Iguana is well‐known, the species still lacks a comprehensive and up‐to‐date anatomical study, particularly addressing the axial skeleton,
Vieno Rosa   +2 more
wiley   +1 more source

Economic and Juridical Aspects of the Oil Transport with VLCC Ships

open access: yesJournal of Danubian Studies and Research, 2015
Through this paper we propose to address some issues related to maritime transport of oil by large ships. As well known oil represents an important energy source for both production and consumption for the household.
Florin-Dan Pușcaciu   +3 more
doaj  

Cranial anatomy of a Late Cretaceous aspidorhynchid fish (Neopterygii: Aspidorhynchiformes) from Alberta, Canada

open access: yesThe Anatomical Record, EarlyView.
Abstract Belonostomus longirostrisis was named for an isolated jaw fragment from freshwater Upper Cretaceous (Campanian) sediments of the Dinosaur Park Formation of Alberta, Canada. Following the description of the Albertan species, numerous isolated cranial and postcranial elements have been collected from the Dinosaur Park Formation and assigned to B.
Mondo Miyazato   +4 more
wiley   +1 more source

Do the Ecoregions Support Distinct Hilly and Mountain Stream Chironomid Assemblages in South-East Europe? [PDF]

open access: yesInsects
Ergović V   +6 more
europepmc   +1 more source

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