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Design of a Low-cost Radiation Weather Station.
Health Phys
January 2025
Department of Nuclear Engineering and Radiological Sciences, University of Michigan, 2355 Bonisteel Boulevard, Ann Arbor, MI 48109-2104.
Combining a traditional weather station with radiation monitors draws the public's attention to the magnitude of background radiation and its typical variation while providing early indications of unplanned radiological releases, such as nuclear power plant accidents or terrorist acts. Several networks of combined weather and radiation monitoring sensors exist, but these fail to be affordable for broad distribution. This work involves creating an affordable system to accumulate data from multiple locations into a single open-source database.
View Article and Find Full Text PDFTotal RNA Extraction from Rice Vegetative Tissues Using Magnetic Beads.
Methods Mol Biol
November 2024
Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan.
Ribonucleic acid (RNA) extraction is the first critical step in gene expression analysis. In this chapter, we describe a high-throughput RNA extraction method using guanidine thiocyanate and isopropyl alcohol (HighGI). The use of carboxyl-coated paramagnetic beads, instead of silica membrane columns, enables semi-automation using a liquid handling system and high-throughput RNA extraction for large-scale transcriptome studies.
View Article and Find Full Text PDFComparative performance study of paperboard disposable spacers versus commercial valved holding chambers for aerosol delivery.
Int J Pharm
December 2024
Mines Saint-Etienne, Univ Jean Monnet, INSERM, U 1059 Sainbiose, Centre CIS, F - 42023 Saint-Etienne France. Electronic address:
Purpose: The aim of this study is to evaluate and compare the performance, for the administration of fluticasone propionate with a pressurized metered-dose inhaler (pMDI), of two low-tech paperboard spacers versus two commercially available valved holding chambers (VHC).
Methods: According to the Canadian standard CAN/CSA-Z264.1-02, total emitted dose (TED) and aerodynamic size distribution were measured for the pMDI in combination with 4 different spacers: a homemade paper cup spacer, the DispozABLE® paperboard spacer, the AeroChamber Plus® plastic VHC, and the Vortex® aluminium VHC.
Home-made low-cost dosemeter for photon dose measurements in radiobiological experiments and for education in the field of radiation sciences.
Radiat Environ Biophys
August 2024
Biomedical Physics Division, Faculty of Physics, Institute of Experimental Physics, University of Warsaw, Pasteura Street 5, 02-093, Warsaw, Poland.
Reliable dosimetry systems are crucial for radiobiological experiments either to quantify the biological consequences of ionizing radiation or to reproduce results by other laboratories. Also, they are essential for didactic purposes in the field of radiation research. Professional dosemeters are expensive and difficult to use in exposure facilities with closed exposure chambers.
View Article and Find Full Text PDFRapid analysis of the chemical constituents of traditional Tibetan medicine Sbyor-bzo-ghi-wang using ballpoint electrospray ionization technique.
Rapid Commun Mass Spectrom
July 2024
Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, P. R. China.
Rationale: The chemical constituents of traditional Tibetan medicines (TTM) can be identified using high-performance liquid chromatography and high-resolution mass spectrometry (HPLC-MS/MS) technique. However, the HPLC-MS/MS technique requires the sample to be pretreated and then separated using the specific liquid chromatography method, which is time consuming. This study developed a ballpoint electrospray ionization (BPESI) technique for analyzing the chemical constituents of Sbyor-bzo-ghi-wang.
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