Results 1 to 10 of about 138,791 (334)
Contrasting Patterns of Sensory Adaptation in Living and Extinct Flightless Birds
Diversity, 2021 Avian cranial anatomy is constrained by the competing (or complementary) requirements and costs of various facial, muscular, sensory, and central neural structures.
Peter Johnston, Kieren J. Mitchell
doaj +1 more source
An MOA Deterioration Monitoring Method Based on an Improved HMM
Zhejiang dianli, 2022 In view of MOA （metal-oxide arrester） deterioration monitoring， a monitoring method based on an improved hidden Markov model （HMM） is proposed. An improved HMM model used for MOA deterioration monitoring is established by obtaining MOA leakage current ...
FANG Yiyue +4 more
doaj +1 more source
Egg Incubation Mechanics of Giant Birds
Biology, 2021 Finite element analysis (FEA) was used to conduct mechanical analyses on eggshells of giant birds, and relate this to the evolution and reproductive behavior of avian species. We aim to (1) investigate mechanical characteristics of eggshell structures of
An Yen +4 more
doaj +1 more source
The distribution and evolution of surface fractures on pan-Antarctic ice shelves
International Journal of Digital Earth, 2023 Surface fractures have a great impact on ice shelf stability in Antarctica and can be considered precursors of ice shelf calving. However, our understanding of the spatial distribution and temporal evolution of surface fractures on the Antarctic ice ...
Ao Pang +5 more
doaj +1 more source
Proteomic method to extract, concentrate, digest and enrich peptides from fossils with coloured (humic) substances for mass spectrometry analyses [PDF]
Royal Society Open Science, 2019 Humic substances are breakdown products of decaying organic matter that co-extract with proteins from fossils. These substances are difficult to separate from proteins in solution and interfere with analyses of fossil proteomes.
Elena R. Schroeter +3 more
doaj +1 more source
Journal of Enzyme Inhibition and Medicinal Chemistry, 2022 Herein, we report the preparation of a panel of Schiff bases analogues as antiprotozoal agents by modification of the stereoelectronic effects of the substituents on N-1 and N-4 and the nature of the chalcogen atom (S, Se). These compounds were evaluated
Alexandra Ibáñez-Escribano +13 more
doaj +1 more source
Proceedings of the Royal Society of London. Series B: Biological Sciences, 2004 Until a few hundred years ago, New Zealand hosted several species of flightless ratite birds, collectively known as the moa. We have used mitochondrial sequence data for Dinornis, the largest of the moa, and new coalescent approaches to estimate its population size prior to human arrival ca. 1000-6000 years BP. We show that, as little as 1000 years ago,
Neil J, Gemmell +2 more
openaire +2 more sources
Treatment of inflammatory bowel disease from the immunological perspective
Immunological Medicine, 2020 Since 1950, the number of patients with inflammatory bowel disease (IBD) in Japan has been increasing. Recent research data indicate that the pathophysiology of IBD involves abnormalities in disease susceptibility genes, environmental factors and ...
Hiroshi Nakase
doaj +1 more source
High-resolution coproecology: Using coprolites to reconstruct the habits and habitats of New Zealand’s extinct upland Moa (Megalapteryx didinus) [PDF]
, 2005 Knowledge about the diet and ecology of extinct herbivores has important implications for understanding the evolution of plant defence structures, establishing the influences of herbivory on past plant community structure and composition, and identifying
Wood, Jamie R. +5 more
core +4 more sources
Moa and the multi-model architecture: a new perspective on XNF2 [PDF]
, 2003 Advanced non-traditional application domains such as geographic information systems and digital library systems demand advanced data management support.
Blok, H.E. +4 more
core +11 more sources