Results 41 to 50 of about 195,388 (199)

Starvation and Climate Change—How to Constrain Cancer Cell Epigenetic Diversity and Adaptability to Enhance Treatment Efficacy

Frontiers in Ecology and Evolution, 2021
Advanced metastatic cancer is currently not curable and the major barrier to eliminating the disease in patients is the resistance of subpopulations of tumor cells to drug treatments.
Christopher Gregg, Christopher Gregg
doaj   +1 more source

Interstellar Extinction Law in the J, H, and Ks Bands toward the Galactic Center

, 2006
We have determined the ratios of total to selective extinction in the near-infrared bands (J, H, Ks) toward the Galactic center from the observations of the region |l| < 2.0deg and 0.5deg < |b| < 1.0deg with the IRSF telescope and the SIRIUS camera ...
Chie Nagashima, Daisuke Kato, Koji Sugitani, Lutz D., Motohide Tamura, Nobuhiko Kusakabe, Noriyuki Matsunaga, Rosenthal D., Shogo Nishiyama, Shuji Sato, Takahiro Naoi, Tetsuya Nagata, Toshihiko Tanabe, van de Hulst H. C.   +13 more
core   +2 more sources

Early gray dust formation in the type IIn SN 2005ip [PDF]

, 2018
The physical characteristics of dust formed in supernovae is poorly known. In this paper, we investigate the extinction properties of dust formed in the type IIn SN 2005ip.
Gall, Christa, Hjorth, Jens, Nielsen, Ann-Sofie Bak   +2 more
core   +3 more sources

The Ratio of Total to Selective Extinction Toward Baade's Window [PDF]

, 2000
We measure the ratio of total to selective extinction, R_{VI}=A_V/E(V-I), toward Baade's Window by comparing the VIK colors of 132 Baade's Window G and K giants from Tiede, Frogel, & Terndrup with the solar-neighborhood (V-I),(V-K) relation from Bessell &
Amelia Stutz, Andrew Gould, Jay A. Frogel, Ng Y. K., Paczynski B., Paczynski B., Stanek K. Z., Whitford A. E.   +7 more
core   +3 more sources

Early-childhood social reticence predicts SCR-BOLD coupling during fear extinction recall in preadolescent youth

Developmental Cognitive Neuroscience, 2019
Social Reticence (SR) is a temperament construct identified in early childhood that is expressed as shy, anxiously avoidant behavior and, particularly when stable, robustly associated with risk for anxiety disorders.
K.J. Michalska, J.S. Feldman, E.J. Ivie, T. Shechner, S. Sequeira, B. Averbeck, K.A. Degnan, A. Chronis-Tuscano, E. Leibenluft, N.A. Fox, D.S. Pine   +10 more
doaj   +1 more source

Structure design and theoretical study on infrared optical properties of Ag/Ge core shell particles

Cailiao gongcheng
To obtain particles that meet the requirements of spectral selective radiation for infrared stealth， the infrared optical properties of Ag/Ge core-shell structures were calculated using Mie scattering theory and finite element simulation， respectively ...
WANG Xinfei, LIU Dongqing, CHENG Haifeng
doaj   +1 more source

Ketamine accelerates fear extinction via mTORC1 signaling

Neurobiology of Disease, 2017
Impaired fear extinction contributes to the persistence of post-traumatic stress disorder (PTSD), and can be utilized for the study of novel therapeutic agents.
Matthew J. Girgenti, Sriparna Ghosal, Dora LoPresto, Jane R. Taylor, Ronald S. Duman   +4 more
doaj   +1 more source

Lifting the Dusty Veil II: A Large-Scale Study of the Galactic Infrared Extinction Law

, 2009
We combine near-infrared (2MASS) and mid-infrared (Spitzer-IRAC) photometry to characterize the IR extinction law (1.2-8 microns) over nearly 150 degrees of contiguous Milky Way midplane longitude.
B. A. Whitney, B. Babler, C. Watson, Chapman, D. L. Nidever, Drimmel, E. Churchwell, Flaherty, G. Zasowski, Indebetouw, Jackson, Li, Lutz, M. F. Skrutskie, M. R. Meade, Madsen, McClure, Nishiyama, Nishiyama, Pineda, R. Indebetouw, R. J. Patterson, Román-Zúñiga, Rosenthal, S. R. Majewski, Skrutskie, Speck, Weingartner, Whittet, Zhukovska   +29 more
core   +1 more source

The Optical -- Mid-infrared Extinction Law of the l=165 Sightline in the Galactic Plane: Diversity of Extinction Law in the Diffuse Interstellar Medium

, 2017
Understanding the effects of dust extinction is important to properly interpret observations. The optical total-to-selective extinction ratio, Rv = Av/E(B-V), is widely used to describe extinction variations in ultraviolet and optical bands. Since the Rv=
Chen, Xiaodian, de Grijs, Richard, Jiang, Biwei, Wang, Shu, Zhao, He   +4 more
core   +2 more sources

A phosphodiesterase 4-controlled switch between memory extinction and strengthening in the hippocampus

Frontiers in Behavioral Neuroscience, 2014
Established fear-related memories can undergo phenomena such as extinction or reconsolidation when recalled. Extinction probably involves the creation of a new, competing memory trace that decreases fear expression, whereas reconsolidation can mediate ...
Rafael eRoesler, Rafael eRoesler, Rafael eRoesler, Gustavo Kellermann Reolon, Gustavo Kellermann Reolon, Gustavo Kellermann Reolon, Natasha eMaurmann, Natasha eMaurmann, Natasha eMaurmann, Gilberto eSchwartsmann, Gilberto eSchwartsmann, Gilberto eSchwartsmann, Nadja eSchröder, Nadja eSchröder, Olavo Bohrer Amaral, Samira eValvassori, Samira eValvassori, João eQuevedo, João eQuevedo, João eQuevedo   +19 more
doaj   +1 more source