Results 51 to 60 of about 8,343,317 (303)

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

EXPERIMENTAL STUDY OF OPTICAL POWER EFFECT ON THE STRUCTURE OF FIBER-OPTICAL DIFFUSER OBTAINED BY FIBER CORE MELTING [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2020
Subject of Research. The paper presents experimental findings of a fiber-optic diffuser structure formed by optical fiber melting. Method. An optical scheme of ytterbium fiber laser is demonstrated consisting of such main components as: a laser pump ...
Ianina D. Tokareva, Yuri A. Konin, Kirill A. Konnov, Sergey V. Varzhel, Andrey A. Dmitriev, Sofya D. Bochkova   +5 more
doaj   +1 more source

Fiber-tip endoscope for optical and microwave control

, 2022
We present a robust, fiber based endoscope with a silver direct-laser-written (DLW) structure for radio frequency (RF) emission next to the optical fiber facet.
Erik Waller (14340480), Artur Widera (11635963), Georg von Freymann (10099864), Jonas Gutsche (14358498), Stefan Dix (9601278)   +4 more
core   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Effect of the take-up velocity on the higher-order structure of the melt-electrospun PLLA/PDLA blend fibers

, 2015
The higher-order structure and the formations of SC and HC of the PLLA/PDLA blend melt-electrospun fibers collected on a rotating target were investigated.
Nishikawa, G., Yamane, H., Lee, J.C., Yamamoto, M., Afifi, A.M.   +4 more
core   +1 more source

Lysyl oxidase (LOX)‐mediated remodeling of the extracellular matrix

FEBS Letters, EarlyView.
The lysyl oxidase (LOX) family of enzymes drives extracellular matrix remodeling by oxidizing collagen, elastin, and fibronectin, promoting covalent cross‐link formation. This activity regulates tissue architecture and mechanical properties, while its dysregulation contributes to fibrosis, cardiovascular disease, glaucoma, connective tissue disorders ...
Fernando Rodríguez‐Pascual, Marta Navarro‐Gutiérrez, Verónica Romero‐Albillo, Raquel Jiménez‐Sánchez   +3 more
wiley   +1 more source

Mitochondrial translation and coordinated cytosolic translation in metabolic homeostasis and disease

FEBS Letters, EarlyView.
Mitochondrial function depends on coordinated protein production from the nuclear and mitochondrial genomes. This review highlights how cytosolic and mitochondrial translation, mRNA localization, protein import, and respiratory complex assembly are integrated to maintain mitochondrial proteostasis and function.
Boseon Kim, Thi Thanh Mai Tran, Nakyung Kang, Min‐Woo Lee, Mihye Lee   +4 more
wiley   +1 more source

Fiber Surface Structure and Fiber Liberation in Soda-anthraquinone Kraft and Soda Pulps as Determined by Conventional Electron Microscopy [PDF]

, 2007
Comparative studies on the surface structure of defibrated fibers and fiber liberation in nondefibrated chips from three different pulping processes, soda-anthraquinone (soda/AQ), kraft and soda pulping, were performed via conventional electron ...
Thomas, Richard J., Saka, Shiro
core   +1 more source

Microscopic structure of the wool fiber

Journal of Research of the National Bureau of Standards, 1941
An investigation was undertaken to obtain information con cerning the fine details of structure of wool fibers and especially of their constituent scale and cortical cells. Treatment of chemi cally modified wool with the enzyme, pepsin, was found to be an excellent method for releasing individual cells for such studies. It is shown by
Charles W. Hock, Robert C. Ramsay, Milton Harris   +2 more
openaire   +1 more source

Depressed clad hollow optical fiber with fundamental LP01 mode cut-off

, 2006
We propose a depressed clad hollow optical fiber with fundamental (LP01) mode cut-off suitable for high power short-wavelength, especially three-level, fiber laser operation by introducing highly wavelength dependent losses at longer wavelengths. The cut-
Codemard, C., Nilsson, J., Y. Jeong, Dupriez, P., Soh, D.B.S., Sahu, J., D.B.S. Soh, C. Codemard, Yoo, S., J. Kim, S. Yoo, Jeong, Y., Kim, J., J. Nilsson, J. K. Sahu, P. Dupriez   +15 more
core   +1 more source