Results 81 to 90 of about 615,196 (306)

Combined 5‐aminolevulinic acid and ferric ammonium citrate treatment promotes hair follicle growth by activating dermal papilla cells

open access: yesFEBS Open Bio, EarlyView.
5‐Aminolevulinic acid combined with ferric ammonium citrate (5‐ALA/FAC) stimulates dermal papilla cell activity and promotes hair follicle growth. The treatment enhances ERK and AKT signaling, increases hair‐inductive gene expression, and restores dermal papilla function suppressed by dihydrotestosterone and oxidative stress, resulting in enhanced hair
Han‐Wook Ryu, Eok‐Soo Oh, Sewoon Kim
wiley   +1 more source

Observation of Hydrogen and Cesium Spectra in a Negative Ion Source for a Neutral Beam Injector using a Multi-channel Spectrometer

open access: yes, 2007
Effective production of hydrogen negative ions (H-) is one of the important issues in high power neutral beam injection (NBI) for fusion experimental devices. Cesium (Cs) vapor is seeded in the H- sources to enhance the H- production rate, which depends
Takeiri, Y.   +15 more
core   +1 more source

Fundamental Ion-Surface Interactions in Plasma Thrusters [PDF]

open access: yes, 2007
Ion thrusters offer the potential to enable many future interplanetary robotic missions presently under consideration by NASA. To realize the benefits offered by these low thrust devices, the sputtering mechanisms that are responsible for the ...
Kolasinski, Robert David
core   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

open access: yesFEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke   +4 more
wiley   +1 more source

Negative Ion Extraction Characteristics of a Large Negative Ion Source with Double-Magnetic Filter Configuration

open access: yes, 1992
"A multi-ampere hydrogen negative ion source with a large extraction area of 25 cm x 25 cm has been developed. This negative ion source is a volume-production-type bucket ion source which is operated with double-magnetic filter configuration.
Ando, A.   +4 more
core  

A side extraction PIG negative ion source with a permanent magnet

open access: yes, 1996
A side extraction PIG ion source with a permanent magnet is introduced, which can be used not only for producing miliampere positive ion beams, but also for direct extraction of negative ions of some elements with larger electron affinity.
Ren, XT   +5 more
core   +1 more source

Optimization of Ion Beam Elements Using Mathematical Transport Formalism

open access: yesJournal of Applied Science and Engineering
In the study we report the features and ideal stable operating conditions of the ion source and the accelerator’s beam behavior of a nuclear microprobe at a laboratory for accelerator-based science (LABS) laboratory, i.e., iThemba LABS, South Africa ...
Mohamed Eisa   +4 more
doaj   +1 more source

RF broad-beam low-energy ion source with electron compensation [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2010
Characteristics of single-grid RF ion source with 250 mm beam diameter and 1A beam current have been studied. Energy distribution functions of electrons and ions emitted by the source have been measured.
Zykov A. V.   +2 more
doaj  

Systemic dysregulation of apolipoproteins in amyotrophic lateral sclerosis serum

open access: yesFEBS Open Bio, EarlyView.
Amyotrophic lateral sclerosis (ALS) is a fatal disease that damages motor neurons. This study found that people with ALS show significant changes in blood fats and the proteins that carry them. Several apolipoproteins were higher, lipid balances were altered, and normal protein–lipid relationships were disrupted.
Finula I. Isik   +6 more
wiley   +1 more source

Visualization of H? Dynamics in Extraction Region of Negative-Ion Source by Hα Imaging Spectroscopy

open access: yes, 2013
We developed a new imaging spectroscopy diagnostic tool for Hα emission and installed it on a negative hydrogen ion (H?) source to investigate the H? dynamics in the extraction region.
KANEKO, Osamu   +7 more
core   +1 more source

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