The Quenching of Long-Wavelength Fluorescence by the Closed Reaction Center in Photosystem I in at 77 K.

Photosystem I in most organisms contains long-wavelength or "Red" chlorophylls (Chls) absorbing light beyond 700 nm. At cryogenic temperatures, the Red Chls become quasi-traps for excitations as uphill energy transfer is blocked. One pathway for de-excitation of the Red Chls is via transfer to the oxidized RC (P700), which has broad absorption in the near-infrared region.

Left Ventricular Intramyocardial Dissecting Hematoma With Late Ventricular Tachycardia Storm.

This case describes an uncommon discovery of a left ventricular intramyocardial dissecting hematoma in a patient experiencing a ventricular tachycardia storm. Imaging modalities, including 2-dimensional and 3-dimensional echocardiography and cardiac magnetic resonance, assisted in diagnosing the intramyocardial dissecting hematoma. The patient underwent conservative treatment and received a single-chamber implantable cardioverter defibrillator.

Effects of dietary supplementation with omega-3 fatty acid-rich linseed on the reproductive performance of ewes in subtropical climates.

The present study evaluated the effects of omega-3 (ω-3) fatty acid-rich linseed supplementation on the reproductive performance, endocrine profile, and biochemical profile of ewes reared in subtropical climates. Forty-eight acyclic and clinically healthy Marwari sheep, aged 1.5-2.

Evaluating soluble Axl as a biomarker for glioblastoma: A pilot study.

With current imaging, discriminating tumor progression from treatment effect following immunotherapy or oncolytic virotherapy of glioblastoma (GBM) is challenging. A blood based diagnostic biomarker would therefore be helpful. Axl is a receptor tyrosine kinase that is highly expressed by many cancers including GBM.