A new bending-magnet beamline with a 2.5 m normal-incidence monochromator has been constructed to serve with a light source in the visible-vacuum-ultraviolet region for photoluminescence, transmission and reflection spectroscopies of solids at the UVSOR-III 750 MeV synchrotron radiation light source. The aim is to pave the way to establishing a beamline with high photon flux, high brilliance, high energy-resolution, high linear-polarization and low higher-order light. To obtain high photon flux and brilliance, the acceptance angle of the bending-magnet radiation was designed to be 40 mrad (H) × 14 mrad (V) and the post-mirror system employed Kirkpatrick-Baez optics. The incidence angle of the incoming light to the optical elements, except to the gratings, was set to a grazing angle in order to keep a degree of linear polarization. For achieving high energy-resolution, an off-plane Eagle-type monochromator was adopted. Higher-order unwanted light in the energy range below ∼11 eV was suppressed to be less than 0.1%.
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http://dx.doi.org/10.1107/S1600577513032931 | DOI Listing |
Methods Mol Biol
December 2024
Australian Regenerative Medicine Institute (ARMI), Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, VIC, Australia.
In the emerging field of optogenetics, light-sensitive G-protein coupled receptors (GPCRs) allow for the temporally precise control of canonical cell signaling pathways. Expressing, stimulating, and measuring the activity of light-sensitive GPCRs (e.g.
View Article and Find Full Text PDFNat Prod Res
December 2024
National Institute of Agronomic Research of Algeria, Station of Sidi Mehdi, Touggourt, Algeria.
Mushrooms have proven to be a valuable source of diverse bioactive compounds that can hold substantial potential for preventing and managing various diseases. This research focused on examining the numerous bioactive compounds found in () (Cooke & Massee) Priest mushrooms, particularly those obtained from ethyl acetate and dichloromethane extracts. Polyphenols, flavonoids, tannins, and alkaloids were also evaluated by chemical analysis.
View Article and Find Full Text PDFmSphere
December 2024
Department of Microbiology, Cornell University, Ithaca, New York, USA.
Unlabelled: The bacterial genus includes species found in environmental habitats like soil and water, as well as taxa adapted to be host-associated or pathogenic. High genetic diversity may allow for this habitat flexibility, but the specific genes underlying switches between habitats are poorly understood. One lineage of has undergone a substantial habitat change by evolving from a presumed soil-dwelling ancestral state to thrive in floral nectar.
View Article and Find Full Text PDFJ Am Chem Soc
December 2024
College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
Two-dimensional (2D) high-entropy transition metal dichalcogenides (HETMDs) have gained significant interest due to their structural properties and correlated possibilities for high-end devices. However, the controlled synthesis of 2D HETMDs presents substantial challenges owing to the distinction in the inherent characteristics among diverse metal elements in the synthesis, such as saturated vapor pressure of precursors and formation energy of products. Here, we present the synthesis of a 2D HETMD single crystal with 0.
View Article and Find Full Text PDFFront Cell Infect Microbiol
December 2024
Department of Gastrointestinal Surgery, Longyan First Hospital, Longyan, China.
Background: Previous studies have indicated a potential association between gut microbiota and diverticular disease. However, the precise nature of this relationship remains unclear. In light of this, we decided to use a bidirectional two-sample Mendelian randomization (MR) study to investigate the causal relationship between gut microbiota and intestinal diverticular disease in greater depth.
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