Results 11 to 20 of about 85,645 (168)
Novel mesostructured inclusions in the epidermal lining of Artemia franciscana ovisacs show optical activity [PDF]
PeerJ, 2017 Background Biomineralization, e.g., in sea urchins or mollusks, includes the assembly of mesoscopic superstructures from inorganic crystalline components and biopolymers.
Elena Hollergschwandtner +7 more
doaj +2 more sources
Uptake of Radionuclides by Bryophytes in the Chornobyl Exclusion Zone
Toxics, 2023 The “Chernobyl nuclear disaster” released huge amounts of radionuclides, which are still detectable in plants and sediments today. Bryophytes (mosses) are primitive land plants lacking roots and protective cuticles and therefore readily accumulate ...
Brigitte Schmidt +8 more
doaj +1 more source
Seed variability of Sisymbrium polymorphum (Murray) Roth (Brassicaceae) across the Central Palaearctic [PDF]
PhytoKeys, 2022 This study presents the results of investigation of the micromorphology and variability of Sisymbrium polymorphum seeds collected in 49 localities in the core range and isolated populations of Central Europe, Eastern Europe and Central Asia. In addition,
Agnieszka Rewicz +7 more
doaj +3 more sources
International Journal of Hypertension, 2020 Hypertension is a disease classified as primary or secondary, manifested not only by elevation of blood pressure but also involved in structural and functional changes of target organs. Renal artery stenosis is a leading factor of secondary hypertension,
Veronica S. de Matos +12 more
doaj +1 more source
Subfamily hypostominae: similarities and differences in testicular structure of amazonian fish
BMC Zoology, 2022 Background Hypostominae is a subfamily of the family Loricariidae that has a great diversity of species. Accordingly, testicular studies in fish can contribute to the phylogeny and taxonomy of species and to the comparison of reproductive aspects between
Ivana Kerly S. Viana +7 more
doaj +1 more source
Prenatal valproic acid-induced autism marmoset model exhibits higher salivary cortisol levels
Frontiers in Behavioral Neuroscience, 2022 Individuals with autism spectrum disorder (ASD) are exposed to a variety of stressors owing to their behavioral traits. Cortisol is a hormone typically associated with stress, and its concentration and response to stress are higher in individuals with ...
Madoka Nakamura +10 more
doaj +1 more source
Ultrastructure of Lipoma [PDF]
Cancer, 1982 Eleven benign lipogenic tumors comprising ten ordinary lipomas and one fibroblastic lipoma were studied by light and electron microscopy. The former, which contained only a few inconspicuous septa, were composed of univacuolar mature adipocytes. No young forms of adipocytic differentiation were seen reflecting the slow growth of the ordinary lipomas ...
Y H, Kim, L, Reiner
openaire +2 more sources
Plants, 2022 Drosera, Droseraceae, catch prey with sticky tentacles. Both Australian Drosera allantostigma and widespread D. rotundifolia show three types of anatomically different tentacles: short, peripheral, and snap-tentacles.
Caroline Ivesic +4 more
doaj +1 more source
Ultrastructure of the esthesioneuroblastoma [PDF]
Cancer, 1976 A tumor in the anatomic location and with the light microscopic appearance of an esthesioneuroblastoma was examined with the electron microscope. Secretory-type granules, cytoplasmic fibrils, and microtubules similar to those described in neuroblastomas were found in many of the tumor cells, which supports an origin from the sympathetic autonomic ...
R Y, Osamura, G, Fine
openaire +2 more sources
The Role of Reactive Oxygen Species (ROS) in the Formation of Extracellular Traps (ETs) in Humans
Biomolecules, 2015 Extracellular traps (ETs) are reticulate structures of extracellular DNA associated with antimicrobial molecules. Their formation by phagocytes (mainly by neutrophils: NETs) has been identified as an essential element of vertebrate innate immune defense.
Walter Stoiber +3 more
doaj +1 more source