Results 41 to 50 of about 29,712 (240)

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

open access: yesThe Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro   +1 more
wiley   +1 more source

Incorporating environmental data to refine the classification and understanding of the mechanisms behind encroachment of a woody species in the Southern Great Plains (USA)

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Curtailing encroachment is dependent on effectively identifying where problematic species occur. However, traditional classification methods struggle to distinguish spectrally similar species.
Justin Dawsey, Nancy E. McIntyre
doaj   +1 more source

Can sexual selection drive female life histories? A comparative study on Galliform birds [PDF]

open access: yes, 2007
Sexual selection is an important driver of many of the most spectacular morphological traits that we find in the animal kingdom (for example see Andersson, 1994). As such, sexual selection is most often emphasized as
A. Ø. MOOERS   +39 more
core   +2 more sources

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

open access: yesThe Anatomical Record, EarlyView.
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom   +4 more
wiley   +1 more source

Capability of the Invasive Tree Prosopis glandulosa Torr. to Remediate Soil Treated with Sewage Sludge [PDF]

open access: yes, 2019
Sewage sludge improves agricultural soil and plant growth, but there are hazards associated with its use, including high metal(loid) contents. An experimental study was conducted under greenhouse conditions to examine the effects of sewage sludge on ...
Abbas, Ahmed Mahmoud   +5 more
core   +1 more source

The impacts of biological invasions

open access: yesBiological Reviews, EarlyView.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock   +42 more
wiley   +1 more source

Do Resources Matter? The Relationship Between Instructional Expenditures and College Readiness Indicators

open access: yesSchool Leadership Review, 2013
Public schools face seemingly endless scrutiny. Educators have experienced an increased level of accountability and demand to graduate students who are college ready or well prepared to enter the workforce.
Treva Franklin, Casey Graham Brown
doaj  

Early evolutionary history of the seed

open access: yesBiological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman   +2 more
wiley   +1 more source

Micro and Nanoencapsulation of Omega‐3 Fatty Acids: Functional Applications and Future Perspectives in Food Systems

open access: yesFood Safety and Health, EarlyView.
Whey protein‐based microencapsulation for omega‐3 PUFA delivery in food systems. Objective: Enhance oxidative stability & bioavailability of omega‐3 PUFAs using whey protein as an encapsulating agent. Current methods: Spray drying & coacervation—effective but limited by heat sensitivity and encapsulation efficiency. Emerging technologies: Electrospray &
Jihan M. Kassem   +9 more
wiley   +1 more source

Coming to America: Multiple Origins of New World Geckos [PDF]

open access: yes, 2011
Geckos in the Western Hemisphere provide an excellent model to study faunal assembly at a continental scale. We generated a time-calibrated phylogeny, including exemplars of all New World gecko genera, to produce a biogeographic scenario for the New ...
Bauer, A. M.   +6 more
core   +2 more sources

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