Results 51 to 60 of about 348,499 (317)

Ozone measurement practice in the laboratory using Schönbein's method [PDF]

Geoscience Communication, 2020
We present a laboratory technique to measure tropospheric ozone, following a traditional method developed by Christian Friedrich Schönbein in the 19th century.
I. A. Ramirez-Gonzalez, J. A. Añel, A. Cid Samamed, A. Cid Samamed, A. Cid Samamed   +4 more
doaj   +1 more source

Ex-Movère. Narrating Places with Images

img journal, 2023
Through paintings, engravings, short texts it is possible to know a place and at the same time discover the propensities, interests, ideological inclinations of each author.
Alessandra Palma
doaj   +1 more source

Numerical evolution of axisymmetric, isolated systems in General Relativity [PDF]

, 2002
We describe in this article a new code for evolving axisymmetric isolated systems in general relativity. Such systems are described by asymptotically flat space-times which have the property that they admit a conformal extension.
A. Ashtekar, B. Gustafsson, H. Friedrich, H. Friedrich, H. Friedrich, J. Bičák, J. Bičák, J. Carot, J. Frauendiener, J. Frauendiener, J. Frauendiener, J. Frauendiener, J. Wilson, J. Winicour, Jörg Frauendiener, M. Alcubierre, Matthias Hein, P. Hübner, P. Hübner, S.A. Teukolsky   +19 more
core   +2 more sources

The problem of the Russian Federation image formation by German think tanks in the context of the Syrian crisis (case of Friedrich-Ebert-Stiftung)

Vestnik RUDN. International Relations, 2018
The relevance of the research topic due to the ever-increasing role of the analytical institutions in the process of formation of Russia’s image in the public consciousness.
Natalia Viktorovna Ivkina
doaj   +1 more source

A Precise-Integration Time-Domain Formulation Based on Auxiliary Differential Equation for Transient Propagation in Plasma

IEEE Access, 2020
The electromagnetic wave propagation through plasma medium is one of the most important research fields in computational electromagnetics. A numerical formulation based on both the auxiliary differential equation (ADE) and the precise-integration time ...
Zhen Kang, Weilin Li, Yufeng Wang, Ming Huang, Fang Yang   +4 more
doaj   +1 more source

An Iterative Procedure for the Estimation of Drift and Diffusion Coefficients of Langevin Processes

, 2005
A general method is proposed which allows one to estimate drift and diffusion coefficients of a stochastic process governed by a Langevin equation. It extends a previously devised approach [R.
A. Nawroth, D. Kleinhans, Frank, Frank, Friedrich, Friedrich, Friedrich, Friedrich, Gardiner, Gradisek, Haken, Haken, J. Peinke, Jafari, Kriso, Kuusela, R. Friedrich, Ragwitz, Ragwitz, Renner, Risken, Siegert, Sura, Sura, Tutkun, Weinstein, Wächter   +26 more
core   +1 more source

Singularity Processing Method of Microstrip Line Edge Based on LOD-FDTD

International Journal of Antennas and Propagation, 2014
In order to improve the performance of the accuracy and efficiency for analyzing the microstrip structure, a singularity processing method is proposed theoretically and experimentally based on the fundamental locally one-dimensional finite difference ...
Lei Li, Xin Zhang, Yingsong Li
doaj   +1 more source

RKIP overexpression reduces lung adenocarcinoma aggressiveness and sensitizes cells to EGFR‐targeted therapies

Molecular Oncology, EarlyView.
RKIP, a metastasis suppressor protein, modulates key oncogenic pathways in lung adenocarcinoma. In silico analyses linked low RKIP expression to poor survival. Functional studies revealed RKIP overexpression reduces tumor aggressiveness and enhances sensitivity to EGFR‐targeted therapies, while its loss promotes resistance.
Ana Raquel‐Cunha, Joana Pinheiro, Rui F. Marques, Patrícia Fontão, Diana Cardoso‐Carneiro, Adriana Mendes, Izabela N. F. Gomes, Ana Carolina Laus, Renato J. da Silva‐Oliveira, Rui Manuel Reis, Olga Martinho   +10 more
wiley   +1 more source

Image database system for glaucoma diagnosis support [PDF]

, 2008
Tato práce popisuje přehled standardních a pokročilých metod používaných k diagnose glaukomu v ranném stádiu. Na základě teoretických poznatků je implementován internetově orientovaný informační systém pro oční lékaře, který má tři hlavní cíle.
Peter, Roman
core  

Optimized Cell‐Based Platform for Platelet‐Free Detection of Heparin‐Induced Thrombocytopenia Antibodies

Advanced Biology, EarlyView.
This study optimized a cell‐based ELISA for HIT antibody detection using PF4‐coated breast cancer cells (MDA‐MB‐231). Enhanced binding was observed at 50 mM NaCl and 4% paraformaldehyde fixation. Live MDA‐MB‐231 and HCT‐116 cells demontrated superior sensitivity and specificity, providing a promising platelet‐free alternative for clinical HIT diagnosis.
Li‐Yu Chen, Uwe Schirmer, Peter F. Zipfel, Doris Heinrich, Thi‐Huong Nguyen   +4 more
wiley   +1 more source