Results 101 to 110 of about 1,001,486 (376)

Luminance gradient configuration determines perceived lightness in a simple geometric illusion

Frontiers in Human Neuroscience, 2014
Accurate perception of surface reflectance poses a significant computational problem for the visual system. The amount of light reflected by a surface is affected by a combination of factors including the surface’s reflectance properties and illumination
Maria ePereverzeva, Scott O. Murray
doaj   +1 more source

The contribution of the Unresolved Extragalactic Radio Sources to the Brightness Temperature of the sky

, 2008
The contribution of the Unresolved Extragalactic Radio Sources to the diffuse brightness of the sky was evaluated using the source number - flux measurements available in literature.
A. Tartari, Baldwin J. E., Bennett C. L., Birkinshaw M., Burigana C., Colla G., Davis M. M., Fomalont E. B., G. Boella, G. Sironi, Gower I. F. R., Grueff G., Gruppioni C., Hales S. E. G., Katgert J. K., Katgert P., Katgert P., Katgert P., Katgert P., Katgert-Merkelijn J. K., Longair M. S., M. Gervasi, M. Zannoni, Machalski J., McGilchrist M. M., Mills B. Y., Pauliny-Toth I. I. K., Peacock J. A., Peacock J. A., Pearson T. J., Seielstad G. A., Shaver P. A., Vallee J. P., Wall J. V., Wall J. V., Wall J. V., Wilson A. S.   +36 more
core   +1 more source

The cochaperone BAG3 promotes the stabilization of p53 under heat stress conditions

FEBS Open Bio, EarlyView.
Under heat stress, BAG3 translocates to the nucleus and forms a complex with Hsp70 and p53, thereby promoting p53 stabilization and enhancing its transcriptional activity. These findings suggest that BAG3 functions as a cochaperone that supports p53‐mediated stress responses in cooperation with Hsp70.
Ngoc Nguyen Thi Minh, Esther Lee, Soo‐A Kim   +2 more
wiley   +1 more source

Physical Characteristics of Small Space Objects at High Orbits Based on Optical Methods [PDF]

Journal of Astronomy and Space Sciences, 2017
Optical observation is one of the most common techniques used for characterizing the physical properties of unknown objects and debris in space. This research presents measurements and properties of the new object 96019 from ground-based optical ...
Afaf M. Abd El-Hameed, Gamal F. Attia, Yehia Abdel-Aziz   +2 more
doaj   +1 more source

Downregulation of sST2, a decoy receptor for interleukin‐33, enhances subcutaneous tumor growth in murine pancreatic cancer cells

FEBS Open Bio, EarlyView.
Subcutaneous implantation of murine Panc02 pancreatic cancer cells depleted of sST2, a soluble decoy receptor for the proinflammatory interleukin‐33 (IL‐33), leads to a decreased number of GLUT4‐positive cancer‐associated adipocytes, reduced levels of the anti‐inflammatory molecule adiponectin, increased phosphorylation of IκBα, elevated Cxcl3 ...
Miho Akimoto, Nobuko Koshikawa, Takao Morinaga, Mimi Tamamori‐Adachi, Atsushi Takatori, Keizo Takenaga   +5 more
wiley   +1 more source

Pupillary Responses to Words That Convey a Sense of Brightness or Darkness

Psychology Science, 2017
Theories about embodiment of language hold that when you process a word’s meaning, you automatically simulate associated sensory input (e.g., perception of brightness when you process lamp) and prepare associated actions (e.g., finger movements when you ...
S. Mathôt, J. Grainger, Kristof Strijkers   +2 more
semanticscholar   +1 more source

Diffusion‐based size determination of solute particles: a method adapted for postsynaptic proteins

FEBS Open Bio, EarlyView.
We present a diffusion‐based approach for measuring the size of macromolecules and their complexes, and demonstrate its use on postsynaptic proteins. The method requires fluorescein‐labelled protein samples, a microfluidic device that maintains laminar flow for said samples, a microscope recording the emitted fluorescent signals, and an analytic ...
András László Szabó, Eszter Nagy‐Kanta, Soma Varga, Edit Andrea Jáger, Csaba István Pongor, Mária Laki, András József Laki, Zoltán Gáspári   +7 more
wiley   +1 more source

Berberine–cinnamic acid co‐crystal effect in ameliorating hyperlipidemia might be regulated through the PI3K/AKT/mTOR/SREBP‐1 signaling pathway

FEBS Open Bio, EarlyView.
Berberine–cinnamic acid co‐crystal (BBR‐CA) inhibits the phosphorylation of the phosphatidylinositol 3‐kinase (PI3K)/AKT/mammalian target of rapamycin (mTOR) pathway, suppressing the transfer of pre‐sterol regulatory element‐binding proteins‐1 (SREBP‐1) from the endoplasmic reticulum to the nucleus. This results in a decrease in the expression level of
Wenheng Gao, Yunlong Li, Lihua Chen, Wenshuo Yang, Yong He, Ye Yang, Dengke Yin, Song Tan   +7 more
wiley   +1 more source

The night sky brightness at Potsdam-Babelsberg

, 2013
We analyze the results of a 2 years (2011--2012) time series of night sky photometry performed at the Leibniz Institute for Astrophysics in Potsdam (AIP).
Posch, Thomas, Puschnig, Johannes, Schwarz, Robert, Schwope, Axel   +3 more
core   +1 more source

Ultra–Low Surface Brightness Imaging with the Dragonfly Telephoto Array [PDF]

, 2014
We describe the Dragonfly Telephoto Array, a robotic imaging system optimized for the detection of extended ultra–low surface brightness structures. The array consists of eight Canon 400 mm f/2.8 L IS II USM telephoto lenses coupled to eight science ...
R. Abraham, P. V. van Dokkum
semanticscholar   +1 more source