Results 111 to 120 of about 3,932 (298)
Standards guidelines for human comfort tested on timber footbridges
Semina: Ciências Exatas e Tecnológicas, 2011 Activities such as walking, running and jumping can produce undesirable dynamic excitations, which are a phenomenon that occurs due to pedestrian-induced dynamic forces whenever a footbridge features a natural frequency within stepping frequency ranges ...
Pedro Gutemberg de Alcântara Segundinho +2 more
doaj
Diversity and complexity in neural organoids
FEBS Letters, EarlyView.Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley +1 more source
Evaluating vibrations on a small-scale model of a timber footbridge
Maderas: Ciencia y Tecnología, 2011 In Brazil, the study of pedestrian-induced vibration on footbridges has been undertaken since the early 1990s, for concrete and steel footbridges. However, there are no recorded studies of this kind for timber footbridges.
Pedro Gutemberg de Alcântara Segundinho +2 more
doaj
Ultimate and serviceability limit state optimization of cold-formed steel hat-shaped beams
, 2009 Cold-formed steel hat-shaped beams are commonly used in light-weight steel construction systems, such as residential housing structures. The ultimate strength of these sections is affected by their complex stability behavior (e.g. local, distortional and
Honfi, Daniel
core
Reliability assessment of ultimate and serviceability limit states of underground rock caverns
, 2012 Both the stress-induced and structurally controlled instabilities are investigated by means of the Distinct Element program UDEC. The Factor of Safety is used as the criterion for the Ultimate Limit State and the volume of rock mass displaced into the ...
Zhang, Wengang +2 more
core +1 more source
FEBS Letters, EarlyView.Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley +1 more source
FEBS Letters, EarlyView.Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil +4 more
wiley +1 more source
Evaluating vibrations on a small-scale model of a timber footbridge
Maderas: Ciencia y Tecnología, 2014 In Brazil, the study of pedestrian-induced vibration on footbridges has been undertaken since the early 1990s, for concrete and steel footbridges. However, there are no recorded studies of this kind for timber footbridges.
Pedro Gutemberg de Alcântara Segundinho +2 more
doaj
, 2022 This study is focused on the serviceability limit states (SLS) of stress limitation, cracking control and deflections of reinforced concrete (RC) beams.
Varona Moya, Francisco de Borja +2 more
core
FEBS Letters, EarlyView.Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure +3 more
wiley +1 more source