Results 61 to 70 of about 5,007,528 (396)

Method of forming aperture plate for electron microscope [PDF]

, 1974
An electron microscope is described with an electron source a condenser lens having either a circular aperture for focusing a solid cone of electrons onto a specimen or an annular aperture for focusing a hollow cone of electrons onto the specimen.
Heinemann, K.
core   +1 more source

Dihydroorotate dehydrogenase (DHODH) regulates trophoblast syncytialization through organelle stress–induced cellular senescence

FEBS Open Bio, EarlyView.
The inhibition of mitochondrial dihydroorotate dehydrogenase (DHODH) impairs syncytialization and induces cellular senescence via mitochondrial and endoplasmic reticulum stress in human trophoblast stem cells, elevating sFlt1/PlGF levels, a hallmark of placental dysfunction in hypertensive disorders of pregnancy.
Kanoko Yoshida, Kazuya Kusama, Ayaka Horiuchi, Yu Kawaguchi, Atsuya Tsuru, Mikihiro Yoshie, Kazuhiro Tamura   +6 more
wiley   +1 more source

Electron energy loss spectroscopy determination of Ti oxidation state at the (001) LaAlO3/SrTiO3 interface as a function of LaAlO3 growth conditions

, 2007
At the (001) interface between the two band-insulators LaAlO3 and SrTiO3, a high-mobility electron gas may appear, which has been the object of numerous works over the last four years.
Ballutaud, Dominique, Barthelemy, Agnès, Basletic, Mario, Bouzehouane, Karim, Carrétéro, Cécile, Colliex, Christian, Devos, Isabelle, Fusil, Stéphane, Herranz, Gervasi, Imhoff, Dominique, Jacquet, Éric, Jomard, François, Maurice, Jean-Luc   +12 more
core   +4 more sources

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

FEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane, Lea Nikolić, Lorenzo Maraio, Thomas Goiran, Nathan Karpilovsky, Stefano Sellitto, Vangelis Bouris, Jiang‐An Yin, Ronald Melki, Edward A Fon, Adriano Aguzzi, Elena De Cecco   +11 more
wiley   +1 more source

Telocytes in mice bone marrow: electron microscope evidence

Journal of Cellular and Molecular Medicine, 2014
Telocytes (TCs) are a novel type of interstitial cell of whom presence has been recently documented in many tissues and organs. However, whether TCs exists in bone marrow is still not reported. This study aims to find out TCs in mice bone marrow by using
Hua Li, Hongqi Zhang, Lin Yang, Shanshan Lu, J. Ge   +4 more
semanticscholar   +1 more source

Kelvin Probe Spectroscopy of a Two-Dimensional Electron Gas Below 300 mK

, 2003
A scanning force microscope with a base temperature below 300 mK is used for measuring the local electron density of a two-dimensional electron gas embedded in an Ga[Al]As heterostructure. At different separations between AFM tip and sample, a dc-voltage
Copeland J. A., Giessibl F. J., K. Ensslin, M. Bichler, S. Kičin, T. Ihn, T. Vančura, W. Wegscheider   +7 more
core   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Magnetic nanoparticles and quantum dots coupled immuno nano fluorescence assay for visual detection of HPV16-induced cervical cancer cells from cytology/biopsy samples

Sensing and Bio-Sensing Research
Biopsy-based histopathology and immunohistochemistry for cervical cancer detection are costly, time-consuming, and require expert personnel for data interpretation.
Srishty Raman, Pranay Tanwar, Jyoti Meena, Neerja Bhatla, Subhash C. Yadav   +4 more
doaj   +1 more source

Investigation of Magnesium Ferrite Spinel Solid Solution with Iron-Rich Composition

International Journal of Electrochemical Science, 2013
The structural and morphological properties of Mg- Fe- O system were determined by using X-ray diffraction (XRD), Scanning electron micrographs (SEM), Infrared (IR) and Energy dispersive X-ray (EDX) techniques. Combustion method resulted in formation Mg-
N.M. Deraz, Omar H. Abd-Elkader
doaj   +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