Results 61 to 70 of about 905,110 (306)

Direct comparison between rotational and extrusion rheometers

open access: yesMaterials Research, 2009
The use of cone and plate rotational rheology to characterize the flow properties of concentrated dispersion and extrusion methods to determine the rheological properties of pastes have become established rheometric techniques.
Asad Ullah Khan   +2 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Organic versus conventional saffron production: apocarotenoid content and heavy metal contamination in Iran

open access: yesScientific Reports
Organic farming is widely recognized as a sustainable approach with potential to enhance the quality of agricultural products, including medicinal plants such as saffron.
Hamid-Reza Fallahi
doaj   +1 more source

Stress and disorders of the stress system

open access: yesNature Reviews Endocrinology, 2009
All organisms must maintain a complex dynamic equilibrium, or homeostasis, which is constantly challenged by internal or external adverse forces termed stressors. Stress occurs when homeostasis is threatened or perceived to be so; homeostasis is re-established by various physiological and behavioral adaptive responses.
openaire   +3 more sources

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Modelling of multiple impacts for the prediction of distortions and residual stresses induced by ultrasonic shot peening (USP) [PDF]

open access: yes, 2012
During a manufacturing process, the ultrasonic shot peening (USP) technique can be used as the final surface treatment. The aim of this operation is to introduce surface compressive residual stresses in order to prevent crack propagation advancement ...
Taheri, Sahid   +10 more
core   +1 more source

Stress Echocardiography [PDF]

open access: yesHeart, 2003
Stress echocardiography may be performed with exercise and nonexercise stressors, although the use of echo contrast agents makes insertion of an intravenous line important for both techniques. The selection of either stress protocol should be tailored to each patient, and in the opinion of this author, an effective stress echo laboratory should offer ...
Khoury, Vincent, Marwick, Thomas H.
openaire   +9 more sources

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

open access: yesFEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj   +3 more
wiley   +1 more source

Structural behavior of a flexible pavement, stresses, deformations and deflections

open access: yesRevista Ingenio, 2013
This research work was carried out with the support of the Research Division of the Pedagogical and Technological University of Colombia and shows the behavior of stress states: forces, deformations and deflections acting on a flexible pavement structure.
Carlos Hernando Higuera Sandoval
doaj   +1 more source

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