Results 51 to 60 of about 532,284 (336)

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Neutrino Splitting and Density-Dependent Dispersion Relations [PDF]

, 2012
We show that particles can split only when their group velocity exceeds their phase velocity. In this sense the splitting process is the quantum analog of the modulational instability in anomalous dispersive media.
Bi, Xiaojun, Ciuffoli, Emilio, Evslin, Jarah, Zhang, Xinmin   +3 more
core   +4 more sources

Radial Velocity Dispersions of Star Groups in M67

Open Astronomy, 2016
AbstractHigh-precision measurements of radial velocities of the M67 cluster members are used to calculate the radial-velocity dispersions in the stellar groups found earlier in the cluster’s corona. The previously detected feature in one of the groups (Group 60) consisting of stars with almost identical space velocities was confirmed.
Vereshchagin S. V., Chupina N. V.
openaire   +3 more sources

Experimentally Validated Dispersion Tailoring in a Silicon Strip Waveguide With Alumina Thin-Film Coating

IEEE Photonics Journal, 2018
We propose a silicon strip waveguide structure with alumina thin-film coating in-between the core and the cladding for group-velocity dispersion tailoring.
Kai Guo, Jesper. B. Christensen, Xiaodong Shi, Erik. N. Christensen, Li Lin, Yunhong Ding, Haiyan Ou, Karsten Rottwitt   +7 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Chemical enrichment and star formation in the Milky Way disk III. Chemodynamical constraints

, 2004
In this paper, we investigate some chemokinematical properties of the Milky Way disk, by using a sample composed by 424 late-type dwarfs. We show that the velocity dispersion of a stellar group correlates with the age of this group, according to a law ...
Asiain, Avila-Reese, Barbier-Brossat, Bassino, Berczik, Berczik, Bizyaev, Burkert, Byl, Byl, C. Flynn, Carlberg, Carlberg, Carlberg, Chiba, Cubarsí, Dehnen, Dehnen, Dehnen, Dempster, Duflot, Duflot, Edvardsson, Eggen, Elmegreen, Feast, Fehrenbach, Fehrenbach, Flynn, Font, Fridman, Friedli, Fujimoto, Fux, G. Hensler, Gerssen, Gerssen, Gilmore, Gratton, Gómez, H. J. Rocha-Pinto, Hartmann, Hilton, House, Hänninen, Ibata, J. Hänninen, J. Scalo, Jahreiß, Jeffries, Jenkins, Jenkins, Johnson, Kato, Knude, Kokubo, Kroupa, Köppen, Köppen, Lacey, Lacey, Larson, Larson, Mac Low, Maciel, Majewski, Mayor, Mayor, Mayor, Meusinger, Moreno, Mühlbauer, Nemec, Newberg, Nordström, Nordström, Núñez, Oblak, Ojha, Ostriker, Raiteri, Ratnatunga, Robin, Rocha-Pinto, Rocha-Pinto, Rocha-Pinto, Rocha-Pinto, Rocha-Pinto, Roman, Roman, Samland, Scalo, Sellwood, Semenzato, Shapiro, Skuljan, Soderblom, Sotnikova, Spitzer, Spitzer, Steinmetz, Steinmetz, Taylor, Tinsley, Velázquez, Villumsen, W. J. Maciel, Wielen, Wielen, Yanny, Yasutomi, Yasutomi, Yuan   +112 more
core   +1 more source

Stable Control of Pulse Speed in Parametric Three-Wave Solitons [PDF]

, 2006
We analyze the control of the propagation speed of three wave packets interacting in a medium with quadratic nonlinearity and dispersion. We found analytical expressions for mutually trapped pulses with a common velocity in the form of a three-parameter ...
Antonio Degasperis, D. J. Kaup, E. Ibragimov, Fabio Baronio, K. Nozaki, L. Torner, Matteo Conforti, Stefan Wabnitz, V. E. Zakharov, Y. Ohsawa, Y. S. Kivshar   +10 more
core   +4 more sources

Crustal structure south of the Mexican volcanic belt, base don group velocity dispersion

Geofísica Internacional, 1996
Se estimó la estructura de velocidades de la corteza con trayectorias entre las costas de Guerrero y Michoacán, a lo largo de la zona de subducción y la ciudad de México. Esta estructura se obtuvo de la inversión de datos de dispersión de la velocidad de
M. Campillo, S. K. Singh, N. Shapiro, J. Pacheco, R. B. Hemnann   +4 more
doaj   +1 more source

Negative Group Velocity Plasmons Propagating in Waveguides Composed of Graphene Metamaterials

IEEE Access, 2020
Fast light which demonstrates negative group velocity, is achieved by the anomalous dispersion or photon tunneling. However, many applications based on the fast light are limited due to the disadvantages of inferior tunability or nonlinear dispersion ...
Liqiang Zhuo, Shaojian Su, Zeyang Zhao, Hengjie Zhou, Zhen He, Huanxi Ma, Zhili Lin, Weibin Qiu   +7 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source