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http://dx.doi.org/10.1097/WNO.0b013e31826d3f39 | DOI Listing |
Proc Natl Acad Sci U S A
January 2025
Department of Physics, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.
The pseudogap phenomena have been a long-standing mystery of the cuprate high-temperature superconductors. The pseudogap in the electron-doped cuprates has been attributed to band folding due to antiferromagnetic (AFM) long-range order or short-range correlation. We performed an angle-resolved photoemission spectroscopy study of the electron-doped cuprates PrLaCeCuO showing spin-glass, disordered AFM behaviors, and superconductivity at low temperatures and, by measurements with fine momentum cuts, found that the gap opens on the unfolded Fermi surface rather than the AFM Brillouin zone boundary.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
January 2025
Archaeology & Palaeoecology, School of Natural and Built Environment, Queen's University, Belfast BT9 3AZ, United Kingdom.
Polar ice cores and historical records evidence a large-magnitude volcanic eruption in 1831 CE. This event was estimated to have injected ~13 Tg of sulfur (S) into the stratosphere which produced various atmospheric optical phenomena and led to Northern Hemisphere climate cooling of ~1 °C. The source of this volcanic event remains enigmatic, though one hypothesis has linked it to a modest phreatomagmatic eruption of Ferdinandea in the Strait of Sicily, which may have emitted additional S through magma-crust interactions with evaporite rocks.
View Article and Find Full Text PDFAm J Physiol Lung Cell Mol Physiol
January 2025
Dept. of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA.
Rigor and reproducibility are vital to scientific advancement. It is unclear whether a protocol optimized for tissue dissociation in one institution performs well universally. Here, we share our brand-new lab's experience with inter-institutional variability that led to the discovery that a protocol optimized for murine lung dissociation at Boston University (BU) fails to reproduce similar CD4 T cell, CD8 T cell, and B cell outcomes at the University of Michigan at Ann Arbor (U-M).
View Article and Find Full Text PDFBMJ Case Rep
January 2025
Radiology, AIIMS Bibinagar, Hyderabad, India.
Homocystinuria is a disorder of methionine metabolism leading to abnormal accumulation of homocysteine and its metabolites in blood and urine. This condition presents with a wide range of cutaneous and systemic features. This case report focuses on the particular cutaneous finding of silvery hair in this patient and its examination under a microscope that reveals an unusual and not yet reported finding of melanin clumps.
View Article and Find Full Text PDFMed J Armed Forces India
December 2024
Consultant (Radiodiagnosis), Medica Super Specialty Hospital, Kolkata, India.
Pulmonary hypertension (PH) is a complex condition with multiple etiological factors. The ability to identify a potential underlying cause is crucial for accurate diagnosis, patient management, and prognostication. This article presents a series of three patient cases to illustrate the enigmatic nature of PH diagnosis.
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