This Letter shows the advantage of applying the complete temporal basis in polarimeters based on photoelastic modulators in lieu of the commonly used truncated temporal basis that results in a discrete selection of the Fourier harmonics used for data processing. Results are numerically and experimentally illustrated for a complete Mueller-matrix-based polarimeter on four photoelastic modulators.
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http://dx.doi.org/10.1364/OL.487422 | DOI Listing |
J Cereb Blood Flow Metab
January 2025
A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland.
Zero echo time (zero-TE) pulse sequences provide a quiet and artifact-free alternative to conventional functional magnetic resonance imaging (fMRI) pulse sequences. The fast readouts (<1 ms) utilized in zero-TE fMRI produce an image contrast with negligible contributions from blood oxygenation level-dependent (BOLD) mechanisms, yet the zero-TE contrast is highly sensitive to brain function. However, the precise relationship between the zero-TE contrast and neuronal activity has not been determined.
View Article and Find Full Text PDFeNeuro
January 2025
Research School of Psychology, Australian National University, 0200, Australia.
Inner speech refers to the silent production of language in one's mind. As a purely mental action without obvious physical manifestations, inner speech has been notoriously difficult to quantify. Inner speech is thought to be closely related to overt speech.
View Article and Find Full Text PDFAm J Physiol Endocrinol Metab
January 2025
Department of Physiology, CIMUS, University of Santiago de Compostela, Santiago de Compostela, 15782, Spain.
The established dogma about regulation of feeding is based on the interaction amongst hypothalamic orexigenic and anorexigenic neuropeptides. However, the molecular underpinnings of those interactions remain unclear. A recent article published in by first demonstrated that the transition between hunger and satiety depends on the regulation of 3',5'-cyclic adenosine monophosphate (cAMP) in the paraventricular nucleus of the hypothalamus (PVH) providing novel insights on the spatial and temporal basis by which neuropeptides act.
View Article and Find Full Text PDFActa Radiol
January 2025
Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, PR China.
Background: Segmentation of the cochlea in temporal bone computed tomography (CT) is the basis for image-guided otologic surgery. Manual segmentation is time-consuming and laborious.
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Psychoradiology
December 2024
Department of Neurology, the First Hospital of Anhui Medical University, Hefei 230022, China.
Background: The hippocampus has been widely reported to be involved in the neuropathology of major depressive disorder (MDD). All the previous researches adopted group-level hippocampus subregions atlas to investigate abnormal functional connectivities in MDD in absence of capturing individual variability. In addition, the molecular basis of functional impairments of hippocampal subregions in MDD remains elusive.
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