Results 71 to 80 of about 7,672 (207)

Macronuclear Cytology of Synchronized Tetrahymena pyriformis*

open access: yesThe Journal of Protozoology, 1966
SYNOPSIS. Heat shock and stationary‐phase conditions both cause fusion of nucleoli. In both cases the process is reversed when the cell is returned to normal physiological growth conditions. Fusion of nucleoli during the cell cycle of logarithmically growing cells was not observed.
I L, Cameron, G M, Padilla, O L, Miller
openaire   +3 more sources

Investigating the Influence of Drying Methods on the Quality and Bioactive Properties of Hemp (Cannabis sativa L.) Seed Oil

open access: yesFood Science &Nutrition, Volume 13, Issue 9, September 2025.
This study investigates the effect of climate change on the chemical composition and biological activities of Inula viscosa essential oils. Essential oils from plants cultivated under simulated climate scenarios showed variation in yield and composition.
Oumayma Boussetta   +11 more
wiley   +1 more source

Switching of Burkholderia pseudomallei colony morphotypes in stationary condition and in the organism of experimental animals

open access: yesЖурнал микробиологии, эпидемиологии и иммунобиологии, 2019
Aim. Сharacterization of Burkholderia pseudomallei 110 morphotypes, obtained under various cultivation conditions, studying phenotypic characteristics and switching of colony morphology after removal of stress and in the organism of experimental animals.
L. K. Merinova   +5 more
doaj   +1 more source

Two-dimensional gravitactic bioconvection in a protozoan (tetrahymena pyriformis) culture [PDF]

open access: yes, 2009
Gravitactic bioconvective patterns created by Tetrahymena pyriformis in a Hele-Shaw apparatus were realized and compared with theoretical results. There were found to be two thresholds for bioconvection development: the first indicates the transition ...
Bohatier, Jacques   +9 more
core   +3 more sources

Inference of ecological networks and possibilistic dynamics based on Boolean networks from observations and prior knowledge

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 8, Page 1851-1867, August 2025.
Abstract Being able to infer the interactions between a set of species from observations of the system is of paramount importance to obtain explanatory and predictive models in ecology. We tackled this challenge by employing qualitative modelling frameworks and logic methods for the synthesis of mathematical models that can integrate both observations ...
Loïc Paulevé, Cédric Gaucherel
wiley   +1 more source

Burkholderia pseudomallei Morphotypes that Form in vitro under Stress Conditions

open access: yesПроблемы особо опасных инфекций, 2018
Objective of the study was to determine diversity of the morphotypes formed in vitro from the initial morphological variant of B. pseudomallei 110 under stressful conditions and to study some phenotypic characteristics of them.
L. K. Merinova   +5 more
doaj   +1 more source

Comparative use of bacterial, algal and protozoan tests to study toxicity of azo-and anthraquinone dyes [PDF]

open access: yes, 2006
Toxicity of two azo dyes (Reactive Orange 16 (RO16); Congo Red (CR)) and two anthraquinone dyes (Remazol Brilliant Blue R (RBBR); Disperse Blue 3 (DB3)) were compared using bacterium Vibrio fischeri, microalga Selenastrum capricornutum and ciliate ...
Dias, Nicolina   +6 more
core   +1 more source

Evaluation of Polar Substituted Schiff Bases and 1,2,3‐Triazole Hybrids as Anticancer Agents

open access: yesChemistry &Biodiversity, Volume 22, Issue 7, July 2025.
ABSTRACT Polar substituted Schiff bases and 1,2,3‐triazole hybrids (2–6) were successfully synthesized by Schiff base condensation reaction between the previously synthesized triazole 1 and series of polar substituted amines. The chemical structures of the hybrids were confirmed using spectroscopies (NMR and FTIR), CHN elemental analysis and single ...
Yonas Belay   +5 more
wiley   +1 more source

Co-Transport of Polycyclic Aromatic Hydrocarbons by Motile Microorganisms Leads to Enhanced Mass Transfer under Diffusive Conditions. [PDF]

open access: yes, 2014
The environmental chemodynamics of hydrophobic organic chemicals (HOCs) are often rate-limited by diffusion in stagnant boundary layers. This study investigated whether motile microorganisms can act as microbial carriers that enhance mass transfer of ...
Anne Winding   +44 more
core   +3 more sources

Synthesis and Bioactivity Evaluation of Novel Sulfonamide‐1,2,3‐Triazole Hybrids: In Vitro and In Silico Studies

open access: yesChemical Biology &Drug Design, Volume 106, Issue 1, July 2025.
Novel 1,2,3‐triazole derivatives incorporating a 4‐iodosulfonamide moiety were synthesized. Their antioxidant properties were evaluated using DPPH, ABTS, and CUPRAC methods. The inhibitory activity of the compounds against cholinesterases (AChE and BuChE) was investigated.
Mustafa Çeşme   +3 more
wiley   +1 more source

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