Results 81 to 90 of about 240,809 (322)

Telescope and Researcher Potential of Turkey for Collaboration in CV Studies

Open Astronomy, 2012
Turkish astronomical community has witnessed the construction of several telescopes in the last 10 years. These telescopes and the potential of young researchers in the country motivated this poster presentation which aims to receive attention for ...
Saygac A. Talat, Alis Sinan
doaj   +1 more source

On the use of photometric redshifts for X-ray selected AGNs

, 2004
(Abridged) In this paper we present photometric redshift estimates for a sample of X-ray selected sources detected in the wide field (~2 deg^2), bright [f_{X} (0.5-8 keV)~10^{-14} cgs] XMM-Newton/2dF survey. Unlike deeper X-ray samples comprising a large
A. Georgakakis, Babbedge, Barcons, Barger, Brandt, Brandt, Budavári, Budavári, Coleman, Croom, Csabai, Downes, E. Hatziminaoglou, Fukugita, Georgakakis, Georgakakis, Georgantopoulos, Georgantopoulos, Giacconi, Gonzalez, Green, Hasinger, Hatziminaoglou, Hatziminaoglou, I. Georgantopoulos, Kim, Kim, Madau, Mainieri, Mobasher, Pickles, Richards, Richards, S. Kitsionas, Stocke, Stoughton, Wang, York   +37 more
core   +1 more source

Forelimb Motor Learning and Memory Consolidation Drives Distinct Oligodendrocyte Plasticity to Regulate Task‐related Neuronal Activity

Advanced Science, EarlyView.
Genetic and chemical tracking of oligodendrogenesis, combining fiber photometric neuronal activity recording, reveals that distinct oligodendrocyte plasticities are adopted during different phases of motor learning to fine‐tune task‐related neuronal activity, with a preferential involvement of oligodendrogenesis suppression and node lengthening (type 2
Shuming Wang, Nuo Xu, Wenwen Wang, Yongxiang He, Yuqian Yang, Liuning Zhang, Yanping Zou, Yuehua He, Huiliang Li, Liang Gao, Lin Xiao   +10 more
wiley   +1 more source

Stellar Photometry at the Crossroads of the Two Centuries

Open Astronomy, 2003
In the last century photometry was recognized as a powerful method for investigation of physical parameters of stars and of interstellar matter. Photometric investigations now cover the spectral range from the far ultraviolet to the far infrared.
Straižys V.
doaj   +1 more source

LncRNA THUMPD3‐AS1 Regulates Behavioral and Synaptic Structural Abnormalities in Schizophrenia via miR‐485‐5p and ARHGAP8

Advanced Science, EarlyView.
Schizophrenia (SCZ) is linked to synaptic structural deficits driven by dysregulated noncoding RNAs. Using the novel ceRNAxis pipeline, THUMPD3‐AS1/miR‐485‐5p/ARHGAP8 is identified as a key regulator of actin cytoskeletal remodeling through noncanonical RhoB/C‐ROCK2 signaling. Modulating this axis ameliorates SCZ‐like phenotypes in mice and aligns with
Xiaojuan Gong, Lingxi Chen, Xin Guo, Anna Jiang, Yayi He, Chunxia Yan, Liang Ma, Jiayang Gao, Jinyu Zhang, Bao Zhang   +9 more
wiley   +1 more source

Interstellar Extinction in the Gaia Photometric Systems

Open Astronomy, 2003
Three medium-band photometric systems proposed for the Gaia space mission are intercompared in determining color excesses for stars of spectral classes from O to M at V = 18 mag.
Bridžius A., Vansevičius V.
doaj   +1 more source

The removal of shear-ellipticity correlations from the cosmic shear signal: Influence of photometric redshift errors on the nulling technique

, 2009
Cosmic shear is regarded one of the most powerful probes to reveal the properties of dark matter and dark energy. To fully utilize its potential, one has to be able to control systematic effects down to below the level of the statistical parameter errors.
Abdalla, Amara, Amara, B. Joachimi, Bacon, Benjamin, Bernstein, Bridle, Bridle, Brown, Catelan, Crittenden, Croft, Eifler, Eisenstein, Fu, Heavens, Hetterscheidt, Heymans, Heymans, Heymans, Hirata, Hirata, Hoekstra, Hoekstra, Hu, Hu, Hu, Huterer, Huterer, Ilbert, Jarvis, Jing, Joachimi, Joachimi, Kaiser, Kim, King, King, King, Lee, Ma, Mackey, Mandelbaum, Massey, Munshi, Okumura, Okumura, P. Schneider, Peacock, Pen, Schneider, Schäfer, Semboloni, Semboloni, Simon, Smail, Spergel, Sugiyama, Taburet, Takada, Taylor, Tegmark, Thomas, van den Bosch, van Waerbeke, Wittman   +66 more
core   +1 more source

Cinnamic‐Hydroxamic‐Acid Derivatives Exhibit Antibiotic, Anti‐Biofilm, and Supercoiling Relaxation Properties by Targeting Bacterial Nucleoid‐Associated Protein HU

Advanced Science, EarlyView.
Cinnamic‐hydroxamic‐acid derivatives (CHADs) are identified as novel inhibitors of the bacterial nucleoid‐associated protein HU, exhibiting potent antibacterial, anti‐biofilm (both inhibition and eradication), and DNA relaxation (anti‐supercoiling) activities. Moreover, CHADs demonstrate strong synergistic effects with multiple antibiotics.
Huan Chen, Yingqi Xu, Zhaoping Xiong, Hongliang Wang, Xin Wang, Yue Kang, Zhonglin Wang, Xiaoyan Zeng, Yahui Liu, Yehuan Zheng, Wei Chen, Mengzhe Li, Zhenyue Hu, Chi Xu, Yue Wu, Yawen Wang, Zuyi Yuan, Shuai Yuan, Huadong Liu, Steve Matthews, Nan Qiao, Yan Li, Bing Liu   +22 more
wiley   +1 more source

Dual-Star Photometer at the Tallinn Observatory

Open Astronomy, 2003
We briefly describe the dual-star photometer designed by P. Kalv, a former director of Tallinn Observatory (1934-2002) for multicolor photometry of close binaries and intrinsic variable stars.
Kalv P., Harvig V., Aas T., Pustylnik I.
doaj   +1 more source

Photometric Depth Super-Resolution

, 2019
This study explores the use of photometric techniques (shape-from-shading and uncalibrated photometric stereo) for upsampling the low-resolution depth map from an RGB-D sensor to the higher resolution of the companion RGB image. A single-shot variational
Cremers, Daniel, Haefner, Bjoern, Peng, Songyou, Quéau, Yvain, Verma, Alok   +4 more
core   +2 more sources