Results 61 to 70 of about 1,252,380 (279)

Climatological Annual Mean and Seasonal Variations in Spatial Energy Spectra of Satellite-Observed Sea-Surface Chlorophyll-a Concentration in the East China Sea

Journal of Marine Science and Engineering
The hourly L2-level chlorophyll-a (CHL-a) concentration spatial energy spectra of GOCI-II from 2021 to 2023 are employed to investigate the characteristics of the CHL-a spatial energy spectrum slopes in three regions of the East China Sea, namely ...
Bo Huang, Yanzhen Gu, Cong Liu, Fangguo Zhai, Shuangyan He, Dan Song, Peiliang Li   +6 more
doaj   +1 more source

The Image Characteristics for Perceived Naturalness

i-Perception, 2011
To identify the visual characteristics that make a scene looks nature, we investigated the relationship between the distribution of spatial frequency spectrum of an image and its perceived naturalness.
Li-Chih Ho, Chun-Yen Chang, Chien-Chung Chen   +2 more
doaj   +1 more source

Correlation plots of the Siberian Radioheliograph

Solar-Terrestrial Physics, 2017
The Siberian Solar Radio Telescope [Grechnev et al., 2011] is now being upgraded. The upgrading is aimed at providing the aperture synthesis imaging in the 4–8 GHz frequency range [Lesovoi et al., 2011, 2014] instead of the single-frequency direct ...
Lesovoi S.V., Kobets V.S.
doaj   +1 more source

Increasing the spatial resolution of signals in optical systems

Компьютерная оптика, 2022
Reconstruction of the signal in the intervals between discrete values is of great importance in solving the problem of spatial superresolution in optical microscopy and digital holography.
V.I. Guzhov, I.O. Marchenko, E.E. Trubilina   +2 more
doaj   +1 more source

Potential therapeutic targeting of BKCa channels in glioblastoma treatment

Molecular Oncology, EarlyView.
This review summarizes current insights into the role of BKCa and mitoBKCa channels in glioblastoma biology, their potential classification as oncochannels, and the emerging pharmacological strategies targeting these channels, emphasizing the translational challenges in developing BKCa‐directed therapies for glioblastoma treatment.
Kamila Maliszewska‐Olejniczak, Karolina Pytlak, Sandra Jaworowska, Bogusz Kulawiak, Piotr Bednarczyk   +4 more
wiley   +1 more source

Cosmological Constraint from QSO Spatial Power Spectrum [PDF]

, 2006
In this paper we consider constraints on the cosmological density parameters from the spatial power spectrum of QSOs. We first review an analytic approach to the spatial power spectrum of QSOs, then we compare the result of the analytic approach with a preliminary result of the power spectrum from the two-degree Field QSO redshift (2QZ) survey.
openaire   +2 more sources

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

Terahertz Spiral Spatial Filtering Imaging

Applied Sciences, 2021
In this paper, we propose a terahertz (THz) spiral spatial filtering (SSF) imaging method that can enable image contrast enhancement. The related theory includes three main steps: (1) the THz image of the target is Fourier transformed to the spatial ...
Hui Liu, Shiyou Wu, Meng Zhao, Chao Li, XiaoJun Liu, Guangyou Fang   +5 more
doaj   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

Molecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat, Aslihan Kucuk, Omer Erdogan, Samed Ozer, Bensu Kozan, Tugba Cuceli, Erkan Gumus, Evrim Cevik, Ozge Cevik   +8 more
wiley   +1 more source

Scene content is predominantly conveyed by high spatial frequencies in scene-selective visual cortex. [PDF]

PLoS ONE, 2017
In complex real-world scenes, image content is conveyed by a large collection of intertwined visual features. The visual system disentangles these features in order to extract information about image content. Here, we investigate the role of one integral
Daniel Berman, Julie D Golomb, Dirk B Walther   +2 more
doaj   +1 more source