Results 61 to 70 of about 287,376 (294)

Rhyme in dróttkvætt, from Old Germanic Inheritance to Contemporary Poetic Ecology III: The Old Norse Poetic Ecology

Studia Metrica et Poetica
This paper is the third in a three-part series that develops a model for the background of rhyme in Old Norse dróttkvætt poetry as a formalization of the same form of rhyme found across Old Germanic poetries.
Frog
doaj   +1 more source

Hurricane Toads

EDIS, 2020
Eastern spadefoots are a common but largely unappreciated species of native toad in Florida. Following torrential rains they emerge from hiding and breed in shallow pools.
Steve A Johnson, Candace D Furhmann
doaj   +1 more source

Frog eat frog: exploring variables influencing anurophagy

PeerJ, 2015
Background. Frogs are generalist predators of a wide range of typically small prey items. But descriptions of dietary items regularly include other anurans, such that frogs are considered to be among the most important of anuran predators. However, the only existing hypothesis for the inclusion of anurans in the diet of post-metamorphic frogs ...
Measey, G. John, Vimercati, Giovanni, De Villiers, F. Andre, Mokhatla, Mohlamatsane M., Davies, Sarah J., Edwards, Shelley, Altwegg, Res   +6 more
openaire   +5 more sources

Stochastic orders and the frog model

, 2017
The frog model starts with one active particle at the root of a graph and some number of dormant particles at all nonroot vertices. Active particles follow independent random paths, waking all inactive particles they encounter. We prove that certain frog
Johnson, Tobias, Junge, Matthew
core   +1 more source

Thermal Plasticity is Regulated by a Key MicroRNA During Range Expansion of an Invasive Fruit Fly

Advanced Science, EarlyView.
Populations at the invasion front of Bactrocera dorsalis adapt through reduced phenotypic and gene expression plasticity, a phenomenon likely to be driven by genetic assimilation. We identify a key miRNA‐mediated regulatory axis, in which miR‐276b post‐transcriptionally represses thw, a conserved chitin‐binding gene critical to the cold‐tolerance ...
Yan Zhao, Juntao Hu, Juan Du, Shaokun Guo, Youming Hou, Zhihong Li   +5 more
wiley   +1 more source

Engineered Living Systems With Self‐Organizing Neural Networks: From Anatomy to Behavior and Gene Expression

Advanced Science, EarlyView.
Ectodermal tissue excised from Xenopus embryos self‐organizes into a three‐dimensional mucociliary organoid. Here, we generate a neural variant, termed neurobot, by implanting neural precursor cells. Neurobots develop mature neurons, adopt distinct morphologies, exhibit more complex motility, and respond differentially to neuroactive compounds. Imaging
Haleh Fotowat, Laurie O'Neill, Léo Pio‐Lopez, Megan M. Sperry, Patrick Erickson, Tiffany Lin, Michael Levin   +6 more
wiley   +1 more source

Islet Amyloid Polypeptide Modelled to Simulate Diabetes Co‐Oligomerized with β‐Amyloid 1‐42 Reproducing the Pathological Cascade of Alzheimer's Disease in Human Cerebral Organoids

Advanced Science, EarlyView.
Human islet amyloid polypeptide (hIAPP) was used to mimic T2DM, and Aβ42‐hIAPP co‐oligomers were delivered into the human mature cerebral organoids (COs), which reproduce typical AD pathology and significant neuronal death more closely resembling that of AD patients.
Jin Yan, Zhimeng Tang, Yanyu Luo, Bin Liu, Xinxin Huang, Jun Wei, Feng Yue   +6 more
wiley   +1 more source

Differentiating Batrachochytrium dendrobatidis and B. salamandrivorans in Amphibian Chytridiomycosis Using RNAScope®in situ Hybridization

Frontiers in Veterinary Science, 2019
Batrachochytrium dendrobatidis and B. salamandrivorans are important amphibian pathogens responsible for morbidity and mortality in free-ranging and captive frogs, salamanders, and caecilians. While B.
Robert J. Ossiboff, Anastasia E. Towe, Melissa A. Brown, Ana V. Longo, Ana V. Longo, Karen R. Lips, Debra L. Miller, Debra L. Miller, E. Davis Carter, Matthew J. Gray, Salvatore Frasca   +10 more
doaj   +1 more source

High Time Resolution Analysis of Voltage-Dependent and Voltage-Independent Calcium Sparks in Frog Skeletal Muscle Fibers

Frontiers in Physiology, 2020
In amphibian skeletal muscle calcium (Ca2+) sparks occur both as voltage-dependent and voltage-independent ligand-activated release events. However, whether their properties and their origin show similarities are still in debate. Elevated K+, constant Cl–
Henrietta Cserne Szappanos, Henrietta Cserne Szappanos, János Vincze, Dóra Bodnár, Beatrix Dienes, Martin F. Schneider, László Csernoch, Péter Szentesi   +7 more
doaj   +1 more source

Selectivity Filter Dynamics Define Ion Conductance and Selectivity Differences in CNG and HCN Channels

Advanced Science, EarlyView.
Cyclic nucleotide‐gated (CNG) and hyperpolarization‐activated cyclic nucleotide‐gated (HCN) channels share substantial sequence and structural similarity but differ markedly in ion conductance and K+ selectivity. Microsecond‐scale atomistic MD simulations qualitatively reproduced the conductance differences observed in single‐channel recordings and ...
Haoran Liu, Klaus Benndorf, Yessenbek K. Aldakul, Han Sun   +3 more
wiley   +1 more source