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Twenty-Meter Laser Strainmeter "Popova Isl.".
Sensors (Basel)
September 2024
V.I. Il'ichev Pacific Oceanological Institute FEB RAS, 690041 Vladivostok, Russia.
This paper describes the design and principle of operation of a 20 m laser strainmeter of unequal-arm type created on the basis of a Michelson interferometer and frequency-stabilized helium-neon laser. The interferometry methods used allow the measurement of the displacement of an Earth's crust section on the base of the laser strainmeter with an accuracy of 30 pm in the frequency range from 0 (conventionally) to 1000 Hz. This laser strainmeter, when connected to an accurate time system providing an accuracy of 1 μs, should structurally become a part of the laser interferometric seismoacoustic observatory, consisting of spatially separated laser strainmeters installed in various regions of Russia.
View Article and Find Full Text PDFRBOH-dependent signaling is involved in He-Ne laser-induced salt tolerance and production of rosmarinic acid and carnosol in Salvia officinalis.
BMC Plant Biol
August 2024
Pharmacognosy Department, Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
Background: In the past two decades, the impacts of Helium-Neon (He-Ne) laser on stress resistance and secondary metabolism in plants have been studied, but the signaling pathway which by laser regulates this process remains unclear. Therefore, the current study sought to explore the role of RBOH-dependent signaling in He-Ne laser-induced salt tolerance and elicitation of secondary metabolism in Salvia officinalis. Seeds were primed with He-Ne laser (6 J cm) and peroxide hydrogen (HO, 5 mM) and 15-old-day plants were exposed to two salinity levels (0, 75 mM NaCl).
View Article and Find Full Text PDFEffect of Using Photobiomodulation (660 Nanometers) for the Treatment of Diabetic Ulcers: Protocol for a Randomized Controlled Trial.
Int J Low Extrem Wounds
July 2024
Integrated Center for Medical Specialties, Parnaíba, PI, Brazil.
Diabetic foot ulcers (DFUs) result in tissue damage or impairment of deeper structures that affect quality of life. The impacts are numerous, and even after a long treatment period, 65% of patients experience recurrence. Among the interventions used to accelerate the healing process of DFUs, photobiomodulation therapy (PBMT) is a painless, noninvasive, and low-cost treatment.
View Article and Find Full Text PDFEffect of three-volt moxibustion with helium-neon laser irradiation on quality of care in patients with lumbar radiculopathy spondylosis.
World J Clin Cases
May 2024
Departments of Four Neurology, The Second Hospital of Heilongjiang Province, Harbin 150028, Heilongjiang Province, China.
Background: Lumbar radiculopathy spondylosis is a relatively common orthopedic disease with a high incidence rate. It most commonly occurs in the lumbar 4-5 and lumbar 5-sacral 1 vertebrae, which account for approximately 95% of cases. It mostly occurs in people aged 30-50 years old and greatly affects their quality of life.
View Article and Find Full Text PDFChemical Aristocracy: He Dication and Analogous Noble-Gas-Exclusive Covalent Compounds.
J Phys Chem Lett
April 2024
Instituto de Química, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos 149, Rio de Janeiro 21941-909, Brazil.
Herein, we predict the first set of covalently bonded triatomic molecular compounds composed exclusively of noble gases. Using a combination of double-hybrid DFT, CCSD(T), and MRCI+Q calculations and a range of bonding analyses, we explored a set of 270 doubly charged triatomics, which included various combinations of noble gases and main group elements. This extensive exploration uncovered nine noble-gas-exclusive covalent compounds incorporating helium, neon, argon, or combinations thereof, exemplified by cases such as He and related systems.
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