Results 51 to 60 of about 4,278,026 (378)

Ultrafast supercontinuum fiber-laser based pump-probe scanning MOKE microscope for the investigation of electron spin dynamics in semiconductors at cryogenic temperatures with picosecond time and micrometer spatial resolution

, 2013
We describe a two-color pump-probe scanning magneto-optical Kerr effect (MOKE) microscope which we have developed to investigate electron spin phenomena in semiconductors at cryogenic temperatures with picosecond time and micrometer spatial resolution ...
Biermann, K., Henn, T., Kiessling, T., Molenkamp, L. W., Ossau, W., Santos, P. V.   +5 more
core   +1 more source

Resonant electron heating and molecular phonon cooling in single C$_{60}$ junctions [PDF]

, 2008
We study heating and heat dissipation of a single \c60 molecule in the junction of a scanning tunneling microscope (STM) by measuring the electron current required to thermally decompose the fullerene cage.
Da Rosa, A., Di Carlo, A., Franke, K. J., Frauenheim, Th., Gagliardi, A., Lin, C. S., Niehaus, T. A., Pascual, J. I., Pecchia, A., Romano, G., Schulze, G.   +10 more
core   +1 more source

Spatially resolved quantum nano-optics of single photons using an electron microscope. [PDF]

Physical Review Letters, 2013
We report on the experimental demonstration of single-photon state generation and characterization in an electron microscope. In this aim we have used low intensity relativistic (energy between 60 and 100 keV) electrons beams focused in a ca.
L. Tizei, M. Kociak
semanticscholar   +1 more source

The epithelial barrier theory proposes a comprehensive explanation for the origins of allergic and other chronic noncommunicable diseases

FEBS Letters, EarlyView.
Exposure to common noxious agents (1), including allergens, pollutants, and micro‐nanoplastics, can cause epithelial barrier damage (2) in our body's protective linings. This may trigger an immune response to our microbiome (3). The epithelial barrier theory explains how this process can lead to chronic noncommunicable diseases (4) affecting organs ...
Can Zeyneloglu, Huseyn Babayev, Ismail Ogulur, Sena Ardicli, Yagiz Pat, Duygu Yazici, Bingjie Zhao, Lihong Chang, Xiaoqing Liu, Paolo D'Avino, Manru Li, Ceren Biçer, Fatma Hacer Kurtoğlu Babayev, Raja Dhir, Kari C. Nadeau, Marie‐Charlotte Brüggen, Mubeccel Akdis, Cezmi A. Akdis   +17 more
wiley   +1 more source

Aβ42 promotes the aggregation of α‐synuclein splice isoforms via heterogeneous nucleation

FEBS Letters, EarlyView.
The aggregation of amyloid‐β (Aβ) and α‐synuclein (αSyn) is associated with Alzheimer's and Parkinson's diseases. This study reveals that Aβ aggregates serve as potent nucleation sites for the aggregation of αSyn and its splice isoforms, shedding light on the intricate interplay between these two pathogenic proteins.
Alexander Röntgen, Zenon Toprakcioglu, Michele Vendruscolo   +2 more
wiley   +1 more source

Interleukin-27 promotes autophagy in human serum-induced primary macrophages via an mTOR- and LC3-independent pathway

Scientific Reports, 2021
Interleukin-27 (IL-27) is a cytokine that suppresses human immunodeficiency virus (HIV)-1 infection in macrophages and is considered as an immunotherapeutic reagent for infectious diseases.
Sylvain Laverdure, Ziqiu Wang, Jun Yang, Takuya Yamamoto, Tima Thomas, Toyotaka Sato, Kunio Nagashima, Tomozumi Imamichi   +7 more
doaj   +1 more source

Electron microscope studies [PDF]

, 1991
This year our laboratory has continued to make progress in the design of electron-optical systems, in the study of structure-function relationships of large multi-subunit proteins, in the development of new image processing software and in achieving a workable sub-angstrom STEM.
Crewe, A.V., Kapp, O.H.
openaire   +5 more sources

Redox‐dependent binding and conformational equilibria govern the fluorescence decay of NAD(P)H in living cells

FEBS Letters, EarlyView.
In this work, we reveal how different enzyme binding configurations influence the fluorescence decay of NAD(P)H in live cells using time‐resolved anisotropy imaging and fluorescence lifetime imaging microscopy (FLIM). Mathematical modelling shows that the redox states of the NAD and NADP pools govern these configurations, shaping their fluorescence ...
Thomas S. Blacker, Nimit Mistry, Nicoletta Plotegher, Elizabeth R. Westbrook, Michael D. E. Sewell, John Carroll, Gyorgy Szabadkai, Angus J. Bain, Michael R. Duchen   +8 more
wiley   +1 more source

Estimation of Complement Components (C3 and C4) and hs-CRP Level in Kidney Failure Patients

Polytechnic Journal, 2019
Several kidney diseases associated with complement activation. Complement activation occurs in progressive chronic kidney disease and may contribute to the chronic inflammation that is characteristically found in the kidney.
Zaid N. Elia, Nisreen W. Mustafa
doaj   +1 more source

Emphasis of some physical and dynamical properties of inverted barium phosphate base glass

Journal of Materials Research and Technology, 2021
Melt-annealed zinc barium phosphate invert glass was produced. A mixture of borate (B2O3), cadmium oxide (CdO), and lead oxide (PbO) was added to the synthesized glass.
Ahmed H. Hammad, Essam B. Moustafa, Ahmed R. Wassel   +2 more
doaj   +1 more source