Results 151 to 160 of about 236,736 (305)

The Brightest Stars In Galaxies As Distance Indicators [PDF]

open access: yes, 2007
INTRODUCTION The brightest stars in galaxies have been used as distance indicators since Hubble(1936). However, the accuracy of the brightest stars for distance estimates has been controversial.
Ran Lyo, Myung Gyoon Lee
core  

The role of peculiar velocity uncertainties in standard siren cosmology

open access: yesThe Open Journal of Astrophysics
Local distance indicators such as standard sirens, in combination with spectroscopic redshift measurements of their host galaxies, allow us to estimate the present-day expansion rate of the Universe parameterised by Hubble's constant, H_0. However, these
Chris Blake, Ryan J. Turner
doaj   +1 more source

CEACAM1 participation in breast cancer progression

open access: yesMolecular Oncology, EarlyView.
In invasive breast cancer (BC), CEACAM1 shifts from an apical to a uniform membranous/cytoplasmic pattern, or is lost, as tumors dedifferentiate, inversely tracking the Ki‐67 proliferative index. In MCF‐7 cells, only CEACAM1‐4L suppresses proliferation, repressing cell cycle and growth factor genes.
Mykola Lyndin   +3 more
wiley   +1 more source

River dolphins as indicators of ecosystem degradation in large tropical rivers [PDF]

open access: yes, 2012
"Human stressors are currently impacting both the Amazon and Orinoco river basins and these are likely to increase. However, there is a lack of standardized monitoring programs to track these human stressors in most of the countries that overlap these ...
Gómez Salazar, Catalina; Coll, Marta; Whitehead, Hal
core  

Pharmacological chromatin remodeling enhances response to estrogen therapy in ER+ breast cancer

open access: yesMolecular Oncology, EarlyView.
Estrogen therapy elicits clinical benefit in ~ 30% of patients with endocrine‐resistant estrogen receptor (ER)‐positive breast cancer. Based on findings that ER transcriptional activation underlies response to estrogen therapy, we tested the effects of epigenetic dysregulation via pharmacological inhibition of histone deacetylases (HDACi).
Anneka L. Johnson Thomas   +16 more
wiley   +1 more source

Influence of cognitive distance on grant decisions [PDF]

open access: yes, 2017
The selection of grant applications generally is based on peer and panel review, but as shown in many studies, the outcome of this process does not only depend on the scientific merit or excellence, but also on social factors, and on the way the decision-
Sandström, Ulf
core  

Automated FRAP microscopy for high‐throughput analysis of protein dynamics in chromatin organization and transcription

open access: yesFEBS Open Bio, EarlyView.
RoboMic is an automated confocal microscopy pipeline for high‐throughput functional imaging in living cells. Demonstrated with fluorescence recovery after photobleaching (FRAP), it integrates AI‐driven nuclear segmentation, ROI selection, bleaching, and analysis.
Selçuk Yavuz   +6 more
wiley   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

Understanding European Union international message telephone services demand [PDF]

open access: yes
This study provides a contemporary understanding of demand relations in European Union (EU) international message telephone service (IMTS) markets prior to full liberalization at January 1 1998.
Savage, Scott J   +2 more
core   +1 more source

APPROACH TO MEASURE OF THE QUALITY OF THE DISTANCE COURSES BY METHODS OF FUZZY LOGIC

open access: yesÌнформаційні технології в освіті, 2013
The article examines some aspects of evaluation of quality distance learning, in particular distance learning courses. A list of quantitative and qualitative indicators that measure the quality of distance learning courses, and their evaluation in points
L.V. Nozdrina
doaj  

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