Results 81 to 90 of about 545,698 (316)

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

open access: yesFEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara   +3 more
wiley   +1 more source

Performance enhancement of nanogenerator achieved in branch-heterostructure piezoelectric ceramic fiber toward electrical transmission power line monitoring

open access: yesJournal of Advanced Ceramics
A flexible composite-based piezoelectric nanogenerator (PENG) with low cost, stable properties, and sensitivity to mechanical deformation is highly suitable for constructing self-powered sensing layers for distributed electrical transmission power lines.
Haowei Lu   +9 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Output Characteristics of GaAs Cell Irradiated by Laser

open access: yesPhotonic Sensors, 2018
The output characteristics of GaAs cell are keys for the laser wireless power transmission system design. The measurement platform for the output characteristics of GaAs cell is established by single-junction GaAs cell and 1064 nm fiber laser.
Xiaowei Li
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

The Reactivation of Decayed Positive Leader With Sudden Channel Elongation in Laboratory Long Spark

open access: yesGeophysical Research Letters
Positive lightning leaders present reactivation behaviors during their propagation processes. The mechanism underlying the reactivation of positive leaders is yet unclear.
Dianhang Li   +7 more
doaj   +1 more source

Efficient Binary Conversion for Paillier Encrypted Values [PDF]

open access: yes, 2006
We consider the framework of secure n-party computation based on threshold homomorphic cryptosystems as put forth by Cramer, Damgård, and Nielsen at Eurocrypt 2001. When used with Paillier’s cryptosystem, this framework allows for efficient secure evaluation of any arithmetic circuit defined over , where N is the RSA modulus of the underlying Paillier ...
Schoenmakers, B., Tuyls, P.T.
openaire   +2 more sources

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

The Artificial Mixed Fused Quartz Particles and Silicon Particles-Assisted High-Performance Multicrystalline Silicon

open access: yesCrystals, 2019
Mixed seeds of fused quartz particles and silicon particles were laid at the bottom of the crucible to assist the growth of multicrystalline silicon crystals. The full melting process was used, and then we found that the grown crystals had higher quality.
Yanhuan Cai   +2 more
doaj   +1 more source

Nanoparticulate Coatings with Efficient Up-Conversion Properties

open access: yesACS Applied Materials & Interfaces, 2014
Nanoparticulate films with high up-conversion emission (UC) properties were prepared by spray-deposition of nanometer-sized YVO4:Yb,Er particles. The optical properties of YVO4:Yb,Er were optimized upon annealing before the film deposition in order to get the highest possible UC signal in the considered type of system. Thanks to a simple model and some
Dantelle, Géraldine   +4 more
openaire   +4 more sources

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