Antiarrhythmic action of He-Ne laser in combination with novocainamid and cordaron has been tried in the framework of the program on combined treatment of tachyarrhythmia. He-Ne laser irradiation has been found to optimize in refractory patients the effect of novocainamid which arrests the paroxysms and of cordarone which prevents paroxysms of atrial tachycardia, fibrillation, flutter.
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Compact and full-range carbon dioxide sensor using photoacoustic and resonance dependent modes.
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Dipartimento di Scienze di Base ed Applicate per l'Ingegneria, Sapienza Università di Roma, Rome 00161, Italy.
A compact and robust optical excitation photoacoustic sensor with a self-integrated laser module excitation and an optimized differential resonator was developed to achieve high sensitivity and full linear range detection of carbon dioxide (CO) based on dual modes of wavelength modulated photoacoustic spectroscopy (WMPAS) and resonant frequency tracking (RFT). The integrated laser module equipped with three lasers (a quantum cascade laser (QCL), a distributed feedback laser (DFB) and a He-Ne laser) working in a time-division multiplexing mode was used as an integrated set of spectroscopic sources for detection of the designated concentration levels of CO. With the absorption photoacoustic mode, the WMPAS detection with the QCL and DFB sources was capable of CO detection at concentrations below 20 %, yielding a noise equivalent concentration (NEC) as low as 240 ppt and a normalized noise equivalent absorption coefficient (NNEA) of 4.
View Article and Find Full Text PDFA study on the mechanical strength of alfalfa seeds stimulated with continuous laser light.
Sci Rep
December 2024
Department of Agricultural, Forest and Transport Machinery, University of Life Sciences in Lublin, Głęboka 28, 20-612, Lublin, Poland.
Article Synopsis
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View Article and Find Full Text PDFApplication of photodynamic therapy with 5-aminolevulinic acid and fractional CO laser for the management of recalcitrant plantar warts.
Photodiagnosis Photodyn Ther
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Department of Dermatology, Guangzhou Dermatology Hospital (Guangzhou Institute of Dermatology), Guangzhou, Guangdong 510095, China. Electronic address:
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Sci Rep
November 2024
Department of Physics, Faculty of Education, Ain Shams University, Roxy, Cairo, 11757, Egypt.
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