Results 71 to 80 of about 561,353 (372)

Research examining a spatial autocorrelation imaging method based on stationary characteristics of microtremors

Frontiers in Physics
The spatial autocorrelation method is an important method for extracting the velocity dispersion curve from microtremor data. However, site data typically cannot strictly meet spatial and temporal stationary feature, and this greatly affects the accuracy
Qingling Du, Qingling Du, Yanhui Pan, Kuanyao Zhao, Denghui Gao   +4 more
doaj   +1 more source

Combined spatially resolved metabolomics and spatial transcriptomics reveal the mechanism of RACK1‐mediated fatty acid synthesis

Molecular Oncology, EarlyView.
The authors analyzed the spatial distributions of gene and metabolite profiles in cervical cancer through spatial transcriptomic and spatially resolved metabolomic techniques. Pivotal genes and metabolites within these cases were then identified and validated.
Lixiu Xu, Jinqiu Li, Junqi Ma, Ayshamgul Hasim   +3 more
wiley   +1 more source

Weak Gravitational Lensing by a Sample of X-Ray Luminous Clusters of Galaxies -- II. Comparison with Virial Masses

, 2002
Dynamic velocity dispersion and mass estimates are given for a sample of five X-ray luminous rich clusters of galaxies at intermediate redshifts (z~0.3) drawn from a sample of 39 clusters for which we have obtained gravitational lens mass estimates.
Adami C., Briel U. G., Colless M., Ebeling H., Eke V. R., Hakon Dahle, Lavery R. J., Liang H., Lilje P. B., Navarro J. F., Per B. Lilje, Ragnvald J. Irgens, S. J. Maddox, White S. D. M., Zwicky F.   +14 more
core   +1 more source

Automatic Single Droplet Generator with Control over Droplet Size and Detachment Frequency

Colloids and Interfaces, 2019
This paper presents a quite simple, fully automatized single droplet generator, which can be an alternative for more expensive and complicated microfluidic devices. The simple generation nozzle connected to the pressure cells and cheap peristaltic pumps,
Dorota Gawel, Jan Zawala
doaj   +1 more source

Revisiting the influence of unidentified binaries on velocity dispersion measurements in ultra-faint stellar systems [PDF]

, 2010
Velocity dispersion measurements of recently discovered Milky Way satellites with $M_V\gtrsim-7$ imply they posses high mass-to-light ratios. The expected velocity dispersions due to their baryonic mass are $\sim0.2$\,km\,s$^{-1}$, but values $\gtrsim3$\,km\,s$^{-1}$ are measured.
arxiv   +1 more source

Addressing persistent challenges in digital image analysis of cancer tissue: resources developed from a hackathon

Molecular Oncology, EarlyView.
Large multidimensional digital images of cancer tissue are becoming prolific, but many challenges exist to automatically extract relevant information from them using computational tools. We describe publicly available resources that have been developed jointly by expert and non‐expert computational biologists working together during a virtual hackathon
Sandhya Prabhakaran, Clarence Yapp, Gregory J. Baker, Johanna Beyer, Young Hwan Chang, Allison L. Creason, Robert Krueger, Jeremy Muhlich, Nathan Heath Patterson, Kevin Sidak, Damir Sudar, Adam J. Taylor, Luke Ternes, Jakob Troidl, Xie Yubin, Artem Sokolov, Darren R. Tyson   +16 more
wiley   +1 more source

Vector Nonlinear Klein-Gordon Lattices: General Derivation of Small Amplitude Envelope Soliton Solutions

, 1999
Group velocity and group velocity dispersion for a wave packet in vectorial discrete Klein-Gordon models are obtained by an expansion, based on perturbation theory, of the linear system giving the dispersion relation and the normal modes.
Barbi, Maria, Cocco, Simona, Peyrard, Michel   +2 more
core   +2 more sources

Re-visiting the relations: Galactic thin disc age-velocity dispersion relation [PDF]

, 2007
The velocity dispersion of stars in the solar neighbourhood thin disc increases with time after star formation. Nordstrom et al. (2004) is the most recent observational attempt to constrain the age-velocity dispersion relation.
Alonso, Baranne, Barbanis, Bensby, Brown, Carlberg, Carlberg, Carr, Chiba, Crawford, De Simone, Dehnen, Dehnen, Dehnen, Dehnen, Edvardsson, ESA, Famaey, Famaey, Freeman, Fuchs, Fux, G. Gilmore, G. M. Seabroke, Gilmore, Girardi, Gomez, Haywood, Holmberg, Huang, Hänninen, Høg, Jenkins, Jenkins, Jørgensen, Kalnajs, Kroupa, Lacey, Lacey, Luri, Mayor, Ng, Nordström, Olsen, Olsen, Olsen, Olsen, Olsen, Olsen, Perryman, Quillen, Quillen, Quillen, Quinn, Reid, Salasnich, Schuster, Seabroke, Sellwood, Sellwood, Skuljan, Sommer-Larsen, Soubiran, Spitzer, Spitzer, Steinmetz, Stromgren, Toth, Valenti, Velazquez, Villumsen, Walker, Wielen, Woolley   +73 more
core   +2 more sources

IN-SYNC II: Virial Stars from Sub-Virial Cores -- The Velocity Dispersion of Embedded Pre-Main-Sequence Stars in NGC 1333 [PDF]

, 2014
The initial velocity dispersion of newborn stars is a major unconstrained aspect of star formation theory. Using near-infrared spectra obtained with the APOGEE spectrograph, we show that the velocity dispersion of young (1-2 Myr) stars in NGC 1333 is 0.92+/-0.12 km/s after correcting for measurement uncertainties and the effect of binaries.
arxiv   +1 more source

Peripheral blood proteome biomarkers distinguish immunosuppressive features of cancer progression

Molecular Oncology, EarlyView.
Immune status significantly influences cancer progression. This study used plasma proteomics to analyze benign 67NR and malignant 4T1 breast tumor models at early and late tumor stages. Immune‐related proteins–osteopontin (Spp1), lactotransferrin (Ltf), calreticulin (Calr) and peroxiredoxin 2 (Prdx2)–were associated with systemic myeloid‐derived ...
Yeon Ji Park, Jae Won Oh, Hyewon Chung, Jung Won Kwon, Yi Rang Na, Kwang Pyo Kim, Seung Hyeok Seok   +6 more
wiley   +1 more source