Results 61 to 70 of about 52,118 (271)

Unbiased estimation of an optical loss at the ultimate quantum limit with twin-beams [PDF]

, 2017
Loss measurements are at the base of spectroscopy and imaging, thus perme- ating all the branches of science, from chemistry and biology to physics and material science.
Avella, Alessio, Genovese, Marco, Losero, Elena, Meda, Alice, Ruo-Berchera, Ivano   +4 more
core   +2 more sources

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

FEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso, Jaime Hiniesta‐Valero, Alejandra Guerra‐Castellano, Miguel A. De la Rosa, Irene Díaz‐Moreno   +4 more
wiley   +1 more source

Improved methods for estimation in repeated surveys: Combining time series and calibration

Nonlinear Analysis
The paper investigates new estimation techniques for repeated surveys, focusing on improving the precision of finite population parameter estimates at the current time t by incorporating auxiliary time series and calibration methods.
Dalius Pumputis
doaj   +1 more source

Gridded and direct Epoch of Reionisation bispectrum estimates using the Murchison Widefield Array

, 2019
We apply two methods to estimate the 21~cm bispectrum from data taken within the Epoch of Reionisation (EoR) project of the Murchison Widefield Array (MWA).
A. P. Beardsley, A. Williams, B. Crosse, B. J. Hazelton, B. McKinley, B. Pindor, Brillinger, C. Lynch, C. Wu, Catherine A. Watkinson, Cathryn M. Trott, Christopher H. Jordan, D. A. Mitchell, D. Kenney, D. L. Kaplan, D. Pallot, David Emrich, Furlanetto, G. Sleap, J. C. Pober, J. Line, J. Riding, J. S. B. Wyithe, K. Hasegawa, K. Kubota, K. Steele, K. Takahashi, L. Horsley, M. F. Morales, M. Johnston-Hollitt, M. Rahimi, M. Walker, M. Wilensky, N. Barry, Pritchard, Q. Zheng, R. B. Wayth, R. Byrne, R. Joseph, R. L. Webster, S. J. Tingay, S. Murray, Shintaro Yoshiura, Suman Majumdar, T. Booler, T. Kaneuji, T. M. O. Franzen, W. Li   +47 more
core   +1 more source

Establishment of a coculture system for Porphyromonas gingivalis and head and neck squamous cell carcinoma using spheroid culture and LATS inhibition

FEBS Open Bio, EarlyView.
We established a spheroid coculture system enabling viable Porphyromonas gingivalis–HNSCC interactions under normoxic conditions. Inhibition of LATS1/2 maintains tumor cells in an undifferentiated state, which may promote spheroid growth and create a more permissive environment for bacterial persistence.
Yurika Nakajima, Shogo Okazaki, Muneaki Tamura, Shuichi Sato, Kenichi Imai   +4 more
wiley   +1 more source

ATP13A2 is involved in intracellular polyamine transport in lung epithelial cells

FEBS Open Bio, EarlyView.
Spermidine transport in lung epithelial cells involves the polyamine transporter ATP13A2. Cell proliferation is associated with the upregulation of ATP13A2. Polyamines are present in all living cells and are implicated in various crucial cellular processes such as proliferation, apoptosis and autophagy.
Yuta Hatori, Kohei Kawabata, Takanori Kubo, Takeo Kitazawa, Sae Kanai, Madoka Iwashita, Ami Hayashi, Hiroyuki Nishi, Mikihisa Takano   +8 more
wiley   +1 more source

Some Calibration Estimators of the Mean of a Sensitive Variable Under Measurement Error

Mathematics
This study explores the estimation of the mean of a sensitive variable using calibration estimators under measurement error. Three randomized response techniques are evaluated: Partial Randomized Response Technique, Compulsory Randomized Response ...
Sat Gupta, Pidugu Trisandhya, Frank Coolen   +2 more
doaj   +1 more source

Scheffé-type Confidence Region for the Calibration Line

Austrian Journal of Statistics, 2016
Analyzed is the comparative calibration problem in the case when linear relationship is assumed between two considered measuring devices. The method deriving the approximate confidence region for the unknown parameters of the calibration line based on ...
Gejza Wimmer, Viktor Witkovský
doaj   +1 more source

The cosmological evolution of quasar black-hole masses

, 2003
Virial black-hole mass estimates are presented for 12698 quasars in the redshift interval 0 ...
Akritas, Aller, Archibald, Baker, Barth, Barthel, Bernardi, Boroson, Boyle, Brotherton, Bruzual, Burkert, Chokshi, Corbett, Cristiani, Croom, Dunlop, Elvis, Elvis, Erwin, Faber, Fabian, Fabian, Ferrarese, Ferrarese, Floyd, Ford, Forster, Franceschini, Gebhardt, Gebhardt, Granato, Granato, Green, James S. Dunlop, Kaspi, Kochanek, Kormendy, Krolik, Lacy, Laor, Laor, Laor, Loeb, Magorrian, Marconi, Marziani, Mathur, McLeod, McLure, McLure, McLure, Nelson, Netzer, Osmer, Peterson, Richstone, Ross J. McLure, Salucci, Schneider, Sheth, Silk, Simpson, Soltan, Tadhunter, Tremaine, Vestergaard, Vestergaard, Vestergaard, Wandel, Wandel, Willott, Willott, Wills, Yu   +74 more
core   +3 more sources

Evaluation of in vitro toxicity of common phytochemicals included in weight loss supplements using 1H NMR spectroscopy

FEBS Open Bio, EarlyView.
We investigated the toxicity of 12 active compounds commonly found in herbal weight loss supplements (WLS) using human liver and colon cell models. Epigallocatechin‐3‐gallate was the only compound showing significant toxicity. Metabolic profiling revealed protein degradation, disrupted energy and lipid metabolism suggesting that the inclusion of EGCG ...
Emily C. Davies, Garth L. Maker, Ian F. Musgrave, Samantha Lodge   +3 more
wiley   +1 more source