Results 51 to 60 of about 8,409,733 (301)

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Finite element modelling and load share analysis for involute worm gears with localised tooth contact [PDF]

open access: yes, 2001
A new approach has been developed by the authors to estimate the load share of worm gear drives, and to calculate the instantaneous tooth meshing stiffness and loaded transmission errors. In the approach, the finite element (FE) modelling is based on the
Gentle, CR, Su, D, Yang, F
core  

Study on the Coupling Relationship between Wear and Dynamics in Planetary Gear Systems

open access: yesMachines, 2023
The occurrence of wear is hard to avoid in gear systems because of their transmission principle. Wear will lead to a deviation of the system’s performance from the design objectives or even failure.
Jun Chen, Ning Dong, Jiahua Min
doaj   +1 more source

Extracellular vesicle lipidomics liquid biopsy reveals systemic and tumor microenvironment metabolic reprogramming in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Extracellular vesicle (EV) lipidomic profiling of plasma and ascites from patients with high‐grade serous ovarian cancer and of ovarian cancer cell lines reveals enrichment of triglycerides (TGs), diacylglycerols (DGs), phosphatidylcholine (PCs), sphingomyelins (SMs), reflecting tumor metabolic reprogramming.
Shikha Rani   +9 more
wiley   +1 more source

Hospital performance: costs of acute admitted patients in public hospitals in 2011–12 [PDF]

open access: yes, 2015
Some public hospitals spend nearly twice as much money as others to provide similar services to similar groups of patients. Overview Hospitals account for a large share of the funds Australia spends on the health sector each year. In 2011–12, about 30%
National Health Performance Authority
core  

Meshing performance investigations on oblique worm drive

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing
This paper proposed an innovative approach to oblique worm drive by introducing a specific inclination angle. The investigation focused on the meshing performance of oblique ZA worm drive by varying the crossed axis angle. The meshing geometric models of
Zhenglin YANG   +4 more
doaj   +1 more source

Predictive and prognostic biomarkers of Bacillus Calmette‐Guérin therapy failure in bladder cancer patients: A systematic review

open access: yesMolecular Oncology, EarlyView.
High‐risk bladder cancer is typically treated with Bacillus Calmette‐Guérin (BCG), but 30–40% of patients relapse. No FDA‐ or CE‐approved biomarkers currently predict or prognosticate BCG failure. We systematically reviewed the literature and identified 72 eligible studies, revealing several promising biomarkers associated with BCG treatment response ...
Rui Ribeiro‐Pereira   +7 more
wiley   +1 more source

p190A/ARHGAP35 and p190B/ARHGAP5 proteins in endometrial cancer: a novel cancer‐relevant paralog interplay

open access: yesMolecular Oncology, EarlyView.
This study identifies ARHGAP5, in addition to the frequently mutated ARHGAP35, as significantly mutated in endometrial cancer. Mutations in both genes co‐occur and are associated with their correlated downregulation. Functional CRISPR studies show that both paralogs regulate similar pathways, including actin cytoskeleton organization.
Mathilde Pinault   +12 more
wiley   +1 more source

Design and Simulation of Meshing Performance of Modified Straight Bevel Gears

open access: yes, 2020
As key components to transmit power and motion between intersecting shafts, it is necessary to design feasible tooth axial modification to improve the meshing performance and bearing capacity of straight bevel gears.
Xiaoshuang Xiong   +2 more
core   +1 more source

Understanding Anti-performance: The performative division of experience and the standpoint of the non-performer [PDF]

open access: yes, 2020
Performance theorists have long been drawn to the potential of performance to subvert established institutions. The results of performance are never fully determined in advance; performances subject established images to reinterpretation; they take place
Joseph Grim Feinberg   +1 more
core   +1 more source

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