Results 21 to 30 of about 8,213 (298)

A new tealliocaridid crustacean from the Late Carboniferous of North China and its biogeographic implications [PDF]

open access: yesActa Palaeontologica Polonica, 2018
A new tealliocaridid eumalacostracan is described from the Late Carboniferous Tupo Formation (Ningxia, China). Laevitealliocaris xiaheyanensis gen. et sp. nov.
Qiang Yang   +4 more
doaj   +1 more source

FIRST RECORD OF INDALECIA (MAMMALIA, LITOPTERNA?, INDALECIIDAE) IN THE RÍO LORO FORMATION (EARLY PALEOGENE, TUCUMÁN PROVINCE, ARGENTINA)

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2023
The Río Loro Formation (early Paleogene, Tucumán Province, northwestern Argentina) has yielded several endemic vertebrates, including turtles, crocodiles, and mammals.
Luis Sebastián Saade   +4 more
doaj   +1 more source

Recent Advances and Challenges in Emerging Power Systems

open access: yesInventions
Diminishing fossil fuels, the continually increasing demand for energy due to rapid urbanization, pollution caused by the increased generation of electricity using fossil fuels, the consequent environmental effect, and concerns about man-made global ...
Om P. Malik
doaj   +1 more source

Generic revision of holocystitid blastozoans [PDF]

open access: yesActa Palaeontologica Polonica
Brightonicystis is a valid genus characterised by nine or more oral plates, with two in the B and D ambulacra not reaching the inner mouth edge; five ambulacral facets shared by oral and facetal plates; two generations of smooth thecal plates with ...
CHRISTOPHER R.C. PAUL
doaj   +1 more source

EOCENE NAUTILOIDS FROM THE BAJA CALIFORNIA PENINSULA, MEXICO: RECORDS, DESCRIPTION OF A NEW SPECIES, AND BIOGEOGRAPHIC IMPLICATIONS

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2023
Several cephalopods from the Eocene have been recorded along the Pacific coast of North America. Each new record incorporates relevant knowledge to infer the paleobiology of this group. In this study, we report two nautiloids (subclass Nautiloidea) from
Priscila Morales-Ortega   +3 more
doaj   +1 more source

Libro de Resúmenes de las XXXVII Jornadas Argentinas de Paleontología de Vertebrados

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina
Libro de resúmenesde las XXXVII Jornadas Argentinas de Paleontología de Vertebrados, que tuvo lugar en la Ciudad de Corrientes (Corrientes, Argentina) del 14 al 17 de Mayo de 2024.
Comité Organizador de las XXXVII JAPV
doaj   +1 more source

A new proterochampsid archosauriform from the Middle–Upper Triassic of Southern Brazil [PDF]

open access: yesActa Palaeontologica Polonica
Proterochampsidae is a clade of carnivorous archosauriforms that lived during the Triassic and is characterized by an elongated rostrum with dorsally oriented external nares, and a unique pes configuration.
RODRIGO T. MÜLLER
doaj   +1 more source

Sustainable bioplastics manufacturing from renewable sources

open access: yesFEBS Open Bio, EarlyView.
Bioplastics are manufactured by using polymers from different bio‐based sources. These novel materials not only offer biodegradability but also possess various functional properties that make them suitable for diverse applications. Recent developments in the preparation of bioplastics are reported, highlighting the distinct properties of each type of ...
C. Valeria L. Giosafatto   +6 more
wiley   +1 more source

Cranial anatomy and stratigraphy of a new specimen of the tyrannosaurine dinosaur Daspletosaurus from the Judith River Formation of Central Montana, USA [PDF]

open access: yesActa Palaeontologica Polonica
The tyrannosaurine Daspletosaurus contains three recognized species from the Campanian of Montana and Alberta: Daspletosaurus torosus, Daspletosaurus wilsoni, and Daspletosaurus horneri. The recently named D. wilsoni has been proposed to represent a
ETHAN WARNER-COWGILL   +3 more
doaj   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

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