Results 61 to 70 of about 42,398 (325)
Body mass estimation in paleontology: a review of volumetric techniques
Body mass is a key parameter for understanding the physiology, biomechanics and ecology of an organism. Within paleontology, body mass is a fundamental prerequisite for many studies considering body size evolution, survivorship patterns and the ...
C. Brassey
semanticscholar +1 more source
A formação e o estudo de coleções de história natural e de paleontologia participaram da instauração da ordem política do Império do Brasil, delineando também uma ordem científica. A simbiose entre ciência e nação encontrou em Peter W.
Paulo Henrique Martinez
doaj +1 more source
Biological Effects of Stellar Collapse Neutrinos [PDF]
Massive stars in their final stages of collapse radiate most of their binding energy in the form of MeV neutrinos. The recoil atoms that they produce in elastic scattering off nuclei in organic tissue create radiation damage which is highly effective in the production of irreparable DNA harm, leading to cellular mutation, neoplasia and oncogenesis ...
arxiv +1 more source
Historically, studies aimed at prospecting and analyzing paleontological and neontological data to investigate species distribution have developed separately. Research at the interface between paleontology and biogeography has shown a unidirectional bias,
A. A. Eduardo+7 more
semanticscholar +1 more source
X‐ray micro‐computed tomography is useful for assessing structural and diffusivity changes within short‐loop recycled electrode materials. Delamination via water with and without ultrasonic assistance, influences the structure of the remanufactured electrodes.
Sean Scott+5 more
wiley +1 more source
During the Cretaceous, diversifications and turnovers affected terrestrial vertebrates experiencing the effects of global geographical change. However, the poor fossil record from the early Late Cretaceous has concealed how dinosaurs and other ...
Chase Doran Brownstein
doaj +1 more source
The moment arm of a muscle defines its leverage around a given joint. In a clinical setting, the quantification of muscle moment arms is an important means of establishing the ‘healthy’ functioning of a muscle and in identifying and treating ...
C. Brassey, S. Maidment, P. Barrett
semanticscholar +1 more source
Abstract Premise The occurrence of different microorganisms on aquatic macrophyte fossils suggests that biofilm microbes may facilitate leaf preservation. Understanding the impact of microorganisms on leaf preservation requires studies on living plants coupled with microbial amplicon sequencing.
Brianne Palmer+3 more
wiley +1 more source
A comprehensive illustrated protocol for clearing, mounting, and imaging leaf venation networks
Abstract Premise Leaf venation network architecture can provide insights into plant evolution, ecology, and physiology. Venation networks are typically assessed through histological methods, but existing protocols provide limited guidance on processing large or challenging leaves.
Isabella Niewiadomski+11 more
wiley +1 more source
Abstract Premise Pteridophytes—vascular land plants that disperse by spores—are a powerful system for studying plant evolution, particularly with respect to the impact of abiotic factors on evolutionary trajectories through deep time. However, our ability to use pteridophytes to investigate such questions—or to capitalize on the ecological and ...
Carl J. Rothfels+67 more
wiley +1 more source