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Optical Activity of Chiral Excitons.
Adv Mater
January 2025
Center for Hybrid Organic-Inorganic Semiconductors for Energy, Golden, Colorado, 80401, USA.
Recent activity in the area of chiroptical phenomena has been focused on the connection between structural asymmetry, electron spin configuration and light/matter interactions in chiral semiconductors. In these systems, spin-splitting phenomena emerge due to inversion symmetry breaking and the presence of extended electronic states, yet the connection to chiroptical phenomena is lacking. Here, we develop an analytical effective mass model of chiral excitons, parameterized by density functional theory.
View Article and Find Full Text PDFThe ice phenology as a predictor of bloom in vegetation season in temperate lakes.
Front Microbiol
June 2024
Laboratory of Research and Nature Protection, Krzczonów, Poland.
Introduction: Global warming affects air and water temperatures, which impacts the phenology of lakes and aquatic ecosystems. These changes are most noticeable during winter, when the potentially toxic forms its inoculum for annual blooms. Mostly, research has been conducted on alpine lakes, where blooms have persisted for decades, while a few have focused on temperate lakes.
View Article and Find Full Text PDFPET/CT Imaging of Infectious Diseases: Overview of Novel Radiopharmaceuticals.
Diagnostics (Basel)
May 2024
Department of Nuclear Medicine and Theragnostics, "Mariano Santo" Hospital, 87100 Cosenza, Italy.
Infectious diseases represent one of the most common causes of hospital admission worldwide. The diagnostic work-up requires a complex clinical approach, including laboratory data, CT and MRI, other imaging tools, and microbiologic cultures. PET/CT with F-FDG can support the clinical diagnosis, allowing visualization of increased glucose metabolism in activated macrophages and monocytes; this tracer presents limits in differentiating between aseptic inflammation and infection.
View Article and Find Full Text PDFCounterpoint: Why the FDA Should Not Regulate Laboratory-Developed Tests.
J Appl Lab Med
January 2024
The Steve and Cindy Rasmussen Institute for Genomic Medicine, Nationwide Children's Hospital, Columbus, OH, United States.
Evolution of cephalopod nervous systems.
Curr Biol
October 2023
Department of Biology, Neuroscience and Behavior Graduate Program, University of Massachusetts Amherst, Amherst, MA 01003, USA. Electronic address:
Giant brains have independently evolved twice on this planet, in vertebrates and in cephalopods (Figure 1A). Thus, the brains and nervous systems of cephalopods provide an important counterpoint to vertebrates in the search for generalities of brain organization and function. Their mere existence disproves various hypotheses proposed to explain the evolution of the mind and the human brain, such as cognition and large brains evolved only in long-lived animals with complex social systems and parental care, none of which is true of cephalopods.
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