Results 101 to 110 of about 99,089 (292)
Maintenance of Constant Wave Parameters by Sperm Flagella at Reduced Frequencies of Beat [PDF]
, 1973 1. Treatment of Ciona spermatozoa with low concentrations of Triton X-100 (less than 0·01 %) causes them to beat at lower than normal frequencies. The wavelength of the flagellar bending waves remains constant over the range from 10 to 40 Hz.
Brokaw, C. J., Josslin, R.
core
‘Let's talk about the weather’: The activist curriculum and global climate change education
British Educational Research Journal, EarlyView.Abstract Activist movements have garnered significant global attention on a range of sustainability issues, often involving collectives of citizens coming together. Invoked is the idea of citizens informed to act, emerging not from a common‐sense understanding of everyday life, but rather from a deep political understanding of the world—one that is ...
Richard Pountney
wiley +1 more source
Marine Ecology, EarlyView., 2023 Abstract Microplastic input into the ocean represents an increasing threat to marine biota and may endanger the functioning of marine ecosystems, especially in semi‐enclosed basins, such as the Mediterranean Sea. The size spectrum of microplastics overlaps with that of nano‐microplankton (2–200 μm), thus potentially misleading suspension‐feeding ...
Claudia Traboni +3 more
wiley +1 more source
Force-extension curves of bacterial flagella
, 2010 Bacterial flagella assume different helical shapes during the tumbling phase of a bacterium but also in response to varying environmental conditions. Force-extension measurements by Darnton and Berg explicitly demonstrate a transformation from the coiled
Stark, Holger, Vogel, Reinhard
core +1 more source
The Interplay of Dispersion and Thermal Shock in Pseudomonas Aeruginosa Biofilms
Biotechnology and Bioengineering, EarlyView.ABSTRACT Pathological bacterial biofilms formed on medical implants pose a significant challenge in clinical settings due to their resistance to antibiotics and the host immune response. Eradication of these biofilms by thermal shock has gained increasing attention as a means of eliminating these infections.
Hossein Zare, Josiah Power, Eric Nuxoll
wiley +1 more source
Marine Ecology, EarlyView., 2023 Abstract Plankton play a key role in marine food webs by producing and transferring organic matter and energy to higher trophic levels. To define the trophic structure and interactions within the planktonic communities in the Gulf of Naples, we determined carbon and nitrogen stable isotope ratios in particulate organic matter (POM, <20 μm ...
Louise Merquiol +2 more
wiley +1 more source
Morphology, Ultrastructure, and Classification of Barthelonids (Metamonada Incertae Sedis): With Descriptions of Microbarthelona Gen. Nov., and Parabarthelona Gen. Nov. [PDF]
J Eukaryot MicrobiolABSTRACT Barthelona is a genus of anaerobic flagellates that forms a sister lineage to Fornicata along with Skoliomonas. Although “Barthelona spp.” are known to separate into three distinct lineages, their detailed morphology has not been examined, and their taxonomic classification is incomplete.
Shiratori T +4 more
europepmc +2 more sources
Thermodynamic Aspects of Flagellar Activity [PDF]
, 1967 1. The frequencies of the beat of cilia and flagella from various organisms have been determined at temperatures in the range 5-35°C. 2. Values of the activation enthalpy (ΔH{ddagger}, kcal./mole) and activation entropy (ΔS{ddagger}, e.u.) derived ...
Holwill, M. E., Sleigh, M. A.
core
Biochemistry and Molecular Biology Education, Volume 53, Issue 2, Page 131-141, March/April 2025.Abstract In the classroom, metabolism is often approached and received as a mundane exercise in memorization. Teaching metabolism also faces the challenge of negative perceptions that can impede learning. We sought to improve the learning experience in an undergraduate lecture course on microbial metabolism by implementing an illustrated story that ...
James B. McKinlay, Katherine Kearns
wiley +1 more source
Localized Activation of Bending in Proximal, Medial and Distal Regions of Sea-Urchin Sperm Flagella [PDF]
, 1973 Spermatozoa from the sea urchin, Colobocentrotus atratus, were partially demembranated by extraction with solutions containing Triton X-100 at a concentration which was insufficient to solubilize the membranes completely.
Brokaw, C. J., Gibbons, I. R.
core