Results 61 to 70 of about 2,640,441 (306)
FEBS Open Bio, EarlyView.Stem cell‐based embryo models (SCBEMs) are valuable to study early developmental milestones. Matrigel, a basement membrane matrix, is a critical substrate used in various SCBEM protocols, but its role in driving stem cell lineage commitment is not clearly defined.
Atoosa Amel +3 more
wiley +1 more source
The Distance to the M31 Globular Cluster System [PDF]
, 1998 The distance to the centroid of the M31 globular cluster system is determined by fitting theoretical isochrones to the observed red-giant branches of fourteen globular clusters in M31. The mean true distance modulus of the M31 globular clusters is found to be 24.47 +/- 0.07 mag.
arxiv +1 more source
A Near-infrared Period–Luminosity Relation for Miras in NGC 4258, an Anchor for a New Distance Ladder [PDF]
, 2018 We present year-long, near-infrared (NIR) Hubble Space Telescope (HST) WFC3 observations of Mira variables in the water megamaser host galaxy NGC 4258.
Caroline D. Huang +10 more
semanticscholar +1 more source
Current and Future Cornea Chip Models for Advancing Ophthalmic Research and Therapeutics
Advanced Biology, EarlyView.This review analyzes cornea chip technology as an innovative solution to corneal blindness and tissue scarcity. The examination encompasses recent developments in biomaterial design and fabrication methods replicating corneal architecture, highlighting applications in drug screening and disease modeling while addressing key challenges in mimicking ...
Minju Kim +3 more
wiley +1 more source
Performance Improvement of Raman Distributed Temperature System by Using Noise Suppression
Photonic Sensors, 2017 In Raman distributed temperature system, the key factor for performance improvement is noise suppression, which seriously affects the sensing distance and temperature accuracy. Therefore, we propose and experimentally demonstrate dynamic noise difference
Jian Li +7 more
doaj +1 more source
Overburden and surface subsidence with slicing paste filling mining in thick coal seams
Frontiers in Earth Science, 2023 To overcome the difficulties of overburden failure and surface subsidence induced by the slicing mining of extra-thick coal seams, slicing filler paste is typically utilized.
Qiushuang Zheng +2 more
doaj +1 more source
The Araucaria Project: Distance to the Local Group Galaxy NGC 3109 from Near-Infrared Photometry of Cepheids [PDF]
Astrophys.J. 648 (2006) 375-382, 2006 We present near-infrared J- and K-band photometry of 77 Cepheid variables in the Local Group galaxy NGC 3109. Combining our data with the previously published optical V- and I-band photometry of Cepheids in this galaxy we derive an accurate distance and interstellar reddening to NGC 3109. Adopting a distance modulus of 18.5 mag for the Large Magellanic
arxiv +1 more source
Cepheids and Long Period Variables in NGC 4395 [PDF]
, 2004 Repeated imaging observations of NGC 4395 were made with the WIYN 3.5 m and the KPNO 2.1 m telescopes. From the photometry of the resolved brighter stars in this galaxy eleven Cepheids with periods ranging between 12 and 90 days have been identified. The true distance modulus has been derived from the apparent distance moduli in g, r and i.
arxiv +1 more source
An Accuracy Problem of the Fwd Time History with Regard to the Application of the Sasw Method
Civil and Environmental Engineering, 2017 A Falling Weight Deflectometer (FWD) represents one group of the devices used for diagnostics of pavement bearing capacity. Usually, the FWD dynamic load is substituted by a static load in the evaluation process to determine the equivalent modulus of a ...
Komačka Jozef
doaj +1 more source
The problem of the Pleiades distance. Constraints from Stromgren photometry of nearby field stars [PDF]
, 2001 The discrepancy between the Pleiades cluster distance based on Hipparcos parallaxes and main sequence fitting is investigated on the basis of Stromgren photometry of F-type stars. Field stars with the same metallicity as the Pleiades have been selected from the m1 index and a technique has been developed to locate the ZAMS of these field stars in color-
arxiv +1 more source