Results 31 to 40 of about 905,622 (299)

Calibration – an under-appreciated component in the analytical process of the medical laboratories

open access: yesAdvances in Laboratory Medicine, 2023
Calibration of an analytical measurement procedure is an important basis for the reliability of patient results. Many publications and as well as procedures on how to estimate quality control and interpret those results have been become available over ...
Sonntag Oswald, Loh Tze Ping
doaj   +1 more source

HPLC-PDA Method for Quantification of Bioactive Compounds in Crude Extract and Fractions of Aucklandia costus Falc. and Cytotoxicity Studies against Cancer Cells

open access: yesMolecules, 2023
Aucklandia costus Falc. (Synonym: Saussurea costus (Falc.) Lipsch.) is a perennial herb of the family Asteraceae. The dried rhizome is an essential herb in the traditional systems of medicine in India, China and Tibet.
Anil Bhushan   +7 more
doaj   +1 more source

Quantum Superinductor with Tunable Non-Linearity [PDF]

open access: yes, 2012
We report on the realization of a superinductor, a dissipationless element whose microwave impedance greatly exceeds the resistance quantum. The design of the superinductor, implemented as a ladder of nanoscale Josephson junctions, enables tuning of the ...
Bell, M. T.   +4 more
core   +2 more sources

Method development and validation for determination of antihemolytic activity of eculizumab (Soliris)

open access: yesФармация и фармакология (Пятигорск), 2017
Bioanalytical methods are applied at the development and test of drugs as well as at the step of pharmaceutic products issue. Drugs and excipients quality estimation is made by means of precise and reproducible methods.
E. Yu. Prudnikova   +6 more
doaj   +1 more source

Optimality of linearity with collusion and renegotiation [PDF]

open access: yes, 2011
This study analyzes a continuous-time N-agent Brownian hidden-action model with exponential utilities, in which agents' actions jointly determine the mean and the variance of the outcome process.
Barlo, Mehmet   +2 more
core   +3 more sources

An automatic preselection strategy for magnetotelluric single-site data processing based on linearity and polarization direction

open access: yesFrontiers in Earth Science, 2023
The magnetotelluric response function can be severely disturbed by cultural electromagnetic noise. The preselection strategy is one of the effective ways to remove the influence of noise when calculating the response function.
Hao Chen   +4 more
doaj   +1 more source

A 23 GHz Active Mixer with Integrated Diode Linearizer in SiGe BiCMOS Technology [PDF]

open access: yes, 2003
Active mixers operating at 23 GHz are designed and fabricated in SiGe technology.An integrated diode linearizer is used to improve the linearity of the mixer.Measurement and simulation show excellent agreement.Typically,10 dB double-sideband noise figure,
Bao, Mingquan   +2 more
core   +1 more source

Comparative analysis of Access PCT and Elecsys BRAHMS PCT assays for procalcitonin measurements [PDF]

open access: yesKosin Medical Journal
Background Procalcitonin (PCT) is a crucial biomarker for diagnosing sepsis and managing antibiotic therapy. This study evaluated the analytical performance and comparability of the Access PCT and Elecsys BRAHMS PCT assays.
Hyunji Choi   +2 more
doaj   +1 more source

Research on the Displacement Sensing Structure with Varied Line-space Grating and Its Error Analysis

open access: yesGuangtongxin yanjiu, 2021
Due to the low measurement precision, small measurement range and low stability of traditional displacement sensors, this paper propose and implement a displacement sensor based on varied line-space grating, with the displacement characteristic test and ...
Fei QIAO   +4 more
doaj   +1 more source

Infection-induced cascading failures – impact and mitigation

open access: yesCommunications Physics
In the context of epidemic spreading, many intricate dynamical patterns can emerge due to the cooperation of different types of pathogens or the interaction between the disease spread and other failure propagation mechanism.
Bo Li, David Saad
doaj   +1 more source

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