Results 121 to 130 of about 60,784 (278)

Human kinesin-5 KIF11 drives the helical motion of anti-parallel and parallel microtubules around each other

open access: yesThe EMBO Journal
During mitosis, motor proteins and microtubule-associated protein organize the spindle apparatus by cross-linking and sliding microtubules. Kinesin-5 plays a vital role in spindle formation and maintenance, potentially inducing twist in the spindle ...
Laura Meißner   +4 more
doaj   +1 more source

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

open access: yesThe Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano   +3 more
wiley   +1 more source

The mechanism of anaphase spindle elongation: uncoupling of tubulin incorporation and microtubule sliding during in vitro spindle reactivation. [PDF]

open access: yes, 1988
To study tubulin polymerization and microtubule sliding during spindle elongation in vitro, we developed a method of uncoupling the two processes. When isolated diatom spindles were incubated with biotinylated tubulin (biot-tb) without ATP, biot-tb was ...
CANDE, W. Zacheus   +2 more
core  

The myth of the metabolic baseline: sleep–wake cycles undermine a foundational assumption in organismal biology

open access: yesBiological Reviews, EarlyView.
ABSTRACT Basal and standard metabolic rate (BMR and SMR) are cornerstones of physiological ecology and are assumed to be relatively fixed intrinsic properties of organisms that represent the minimum energy required to sustain life. However, this assumption is conceptually flawed. Many core maintenance processes underlying SMR are temporally partitioned
Helena Norman   +4 more
wiley   +1 more source

In vitro reactivation of spindle elongation in fission yeast nuc2 mutant cells. [PDF]

open access: yes, 1990
To investigate the mechanisms of spindle elongation and chromosome separation in the fission yeast Schizosaccharomyces pombe, we have developed an in vitro assay using a temperature-sensitive mutant strain, nuc2.
Cande, WZ   +3 more
core  

INTERMICROTUBULE BRIDGES IN MITOTIC SPINDLE APPARATUS [PDF]

open access: yesThe Journal of Cell Biology, 1970
P K, Hepler, J R, McIntosh, S, Cleland
openaire   +2 more sources

Orchestrating the metastatic symphony: the role of extracellular vesicles in the epithelial–mesenchymal transition and pulmonary niche formation of breast cancer

open access: yesBiological Reviews, EarlyView.
ABSTRACT The complexity of breast cancer (BC) lung metastasis lies in the capacity of tumour cells to interact efficiently with distant organs to promote colonisation, a process that involves the sophisticated coordination of inherent cellular plasticity and the remodelling of the distant microenvironment.
Jian Lu   +12 more
wiley   +1 more source

Combinatorial Screening in Electrochemical Reaction Engineering

open access: yesChemie Ingenieur Technik, EarlyView.
Parallel testing (combinatorial screening) accelerates climate‐friendly materials research. This study advances high‐pressure electrocatalysis with automated reaction and analytics. A compressible cell enables PEM water electrolysis at elevated pressure.
Stefan Bowe   +21 more
wiley   +1 more source

Parallel motion suspension device Patent [PDF]

open access: yes, 1967
Parallel motion suspension device for measuring ...
Mccreary, R. A.
core   +1 more source

Revisiting the synthesis of dimethyl carbonate from methanol and carbon dioxide

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract The process for producing dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol is explored in this article. It provides an overview of the thermodynamics involved in DMC synthesis, discussing the challenges and potential solutions. The article highlights the reported use of catalysts and dehydrating agents to improve DMC yield and ...
Diego Alexander Santos Araque   +3 more
wiley   +1 more source

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