Results 51 to 60 of about 496,670 (387)
Engineering the Cambrian explosion: the earliest bioturbators as ecosystem engineers [PDF]
By applying modern biological criteria to trace fossil types and assessing burrow morphology, complexity, depth, potential burrow function and the likelihood of bioirrigation, we assign ecosystem engineering impact (EEI) values to the key ichnotaxa in ...
Callow, Richard H. T.+3 more
core +1 more source
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal+10 more
wiley +1 more source
Die Paläogeographie und Fazien der kambrischen Ablagerungen im Bereich der osteuropäischen Plattform [PDF]
Cambrian deposits composed of marine ‒ terrigenous sediments having paleontologic characteristics are widely distributed throughout the Baltic region (Tables 1 and 2). The thickness of the Cambrian deposits exeed 250 m.
V. Korkutis
doaj +1 more source
An Interactive Game Approach to Learning in Historical Geology and Paleontology [PDF]
This article describes an interactive game that can be used in conjunction with traditional laboratory work, group discussions, student presentations, and writing exercises.
Anne Gardulski, Robert Reuss
core +1 more source
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song+4 more
wiley +1 more source
Bayesian total evidence dating reveals the recent crown radiation of penguins [PDF]
The total-evidence approach to divergence-time dating uses molecular and morphological data from extant and fossil species to infer phylogenetic relationships, species divergence times, and macroevolutionary parameters in a single coherent framework ...
Drummond, Alexei J.+5 more
core +5 more sources
Iridium Oxide Inverse Opal Anodes with Tailored Porosity for Efficient PEM Electrolysis
The synthesis of Iridium‐based Inverse Opals (Ir‐IO) is reported as electrocatalyst for Proton exchange membrane water electrolysis (PEM‐WE). Using the developed protocol it produces highly porous materials consisting either of metallic, oxidic Iridium or a combination thereof with large surface areas.
Sebastian Möhle+2 more
wiley +1 more source
A Revised Phylogenetic Classification for Viola (Violaceae)
The genus Viola (Violaceae) is among the 40–50 largest genera among angiosperms, yet its taxonomy has not been revised for nearly a century. In the most recent revision, by Wilhelm Becker in 1925, the then-known 400 species were distributed among 14 ...
Thomas Marcussen+5 more
doaj +1 more source
Molecular and fossil evidence place the origin of cichlid fishes long after Gondwanan rifting. [PDF]
Cichlid fishes are a key model system in the study of adaptive radiation, speciation and evolutionary developmental biology. More than 1600 cichlid species inhabit freshwater and marginal marine environments across several southern landmasses.
Alex Dornburg+9 more
core +1 more source
Poly(heptazine) imides (PHIs), a crystalline carbon nitride subclass, intercalate metals to deliver high stability, tunable electronics, and efficient charge separation. These features enable solar‐driven applications such as hydrogen evolution, CO₂ reduction, and organic synthesis.
Gabriel A. A. Diab+6 more
wiley +1 more source