Results 81 to 90 of about 655,744 (304)

The CCD and readout electronics for the OMC instrument on Integral [PDF]

, 2003
The Optical Monitoring Camera (OMC) on ESA's Integral gamma-ray astronomy satellite is devoted to optical wavelength observations simultaneously covering the same field-of-view as the gamma-ray and X-ray instruments.
Bradley, LJ, Culhane, JL, Dibbens, AP, Jordan, B, Smith, A, Thomas, PD, Walton, DM   +6 more
core  

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Sidewall Corrugation-Modulated Phase-Apodized Silicon Grating Filter

Micromachines
In this work, phase-apodized silicon grating filters with varying sidewall corrugation width and location were investigated, while the resonance wavelength, extinction ratio, and rejection bandwidth were tuned flexibly.
Wei Jiang, Jijun Feng, Shuo Yuan, Haipeng Liu, Zhiheng Yu, Cunliang Yang, Wenbo Ren, Xincheng Xia, Zhengjie Wang, Fengli Huang   +9 more
doaj   +1 more source

Design and testing of an optical instrument for skin flap monitoring. [PDF]

Sci Rep, 2023
Moreno-Oyervides A, Díaz-Ojeda L, Bonilla-Manrique OE, Bonastre-Juliá J, Largo-Aramburu C, Acedo P, Martín-Mateos P.   +6 more
europepmc   +1 more source

Holographic optical trapping Raman micro-spectroscopy for non-invasive measurement and manipulation of live cells [PDF]

, 2018
We present a new approach for combining holographic optical tweezers with confocal Raman spectroscopy. Multiple laser foci, generated using a liquid-crystal spatial light modulator, are individually used for both optical trapping and excitation of ...
Awuah, Dennis, Ghaemmaghami, Amir M., Gibson, Graham, Notingher, Ioan, Padgett, Miles, Sinjab, Faris   +5 more
core   +2 more sources

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

Design optimization of a flexure spring used in small-sized ultra-precise optical instrument. [PDF]

Heliyon, 2023
Kim J, Lee DC, Kim HS.
europepmc   +1 more source

The PLATO Dome A Site-Testing Observatory : instrumentation and first results [PDF]

, 2009
The PLATeau Observatory (PLATO) is an automated self-powered astrophysical observatory that was deployed to Dome A, the highest point on the Antarctic plateau, in 2008 January.
Allen, G., Ashley, M. C. B., Bonner, C. S., Bradley, S., Cui, X., Everett, J. R., Feng, L., Gong, X., Hengst, S., Hu, J., Jiang, Z., Kulesa, C. A., Lawrence, J. S., Li, Y., Luong-Van, D., McCaughrean, M. J., Moore, A. M., Pennypacker, C., Qin, W., Riddle, R., Shang, Z., Storey, J. W. V., Sun, B., Suntzeff, N., Tothill, N. F. H., Travouillon, T., Walker, C. K., Wang, L., Yan, J., Yang, H., Yang, J., York, D., Yuan, X., Zhang, X., Zhang, Z., Zhou, X., Zhu, Z.   +36 more
core   +1 more source

Applicability of mitotic figure counting by deep learning: a development and pan‐cancer validation study

FEBS Open Bio, EarlyView.
In this study, we developed a deep learning method for mitotic figure counting in H&E‐stained whole‐slide images and evaluated its prognostic impact in 13 external validation cohorts from seven different cancer types. Patients with more mitotic figures per mm2 had significantly worse patient outcome in all the studied cancer types except colorectal ...
Joakim Kalsnes, Maria X. Isaksen, Frida Julbø, Manohar Pradhan, Andreas Kleppe, Sepp De Raedt, Ole‐Johan Skrede, Turid Torheim, John Arne Nesheim, Hans Martin Mohn, Hanne A. Askautrud, Karolina Cyll, Wanja Kildal, Emma Rewcastle, Melinda Lillesand, Vebjørn Kvikstad, Emiel Janssen, Robert Jones, Odd Terje Brustugun, Bjørn Brennhovd, Erik Skaaheim Haug, Lill‐Tove Rasmussen Busund, Elin Richardsen, Sigve Andersen, Tom Dønnem, Kristina Lindemann, Gunnar Kristensen, Neil A. Shepherd, Marco Novelli, Knut Liestøl, David Kerr, Håvard E. Danielsen, Tarjei S. Hveem   +32 more
wiley   +1 more source

Characterization of a graphite epoxy optical bench during thermal vacuum cycling [PDF]

In-situ monitoring of the Wide-Field/Planetary Camera, a Hubble Space Telescope science instrument, was performed in a vacuum environment to better understand the formation of ice on cooled optical detectors.
Hansen, Patricia A., Jenkins, Teresa K., Maag, Carl R., Taylor, Daniel M.   +3 more
core   +1 more source