Results 51 to 60 of about 347,752 (281)

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Deep Neural Network-Based Load-Pull Measurement for Linearity Prediction in Mobile Front-End Impedance Matching Application

IEEE Journal of Microwaves
In this article, a simple deep neural network (DNN) is proposed to predict the linearity of power amplifier modules (PAMs) in load-pull measurement for mobile front-end impedance matching, not for power amplifier design by transistors.
Chun Yin Lai, Steve W. Y. Mung, Lok Ki Ho, Anding Zhu   +3 more
doaj   +1 more source

An Irregular Current Injection Islanding Detection Method Based on an Improved Impedance Measurement Scheme

Energies, 2018
One class of islanding detection methods, known as impedance measurement-based methods and voltage change monitoring-based methods, are implemented through injecting irregular currents into the network, for which reason they are defined in this paper as ...
Menghua Liu, Wei Zhao, Qing Wang, Songling Huang, Kunpeng Shi   +4 more
doaj   +1 more source

Miniature Noninvasive Sensor Based on Impedance-Change Detection in Branches for Measuring Branch Ice Content in Overwintering Woody Plants

Micromachines, 2023
Advancements in detection instruments have enabled the real-time acquisition of water information during plant growth; however, the real-time monitoring of freeze–thaw information during plant overwintering remains a challenge.
Hao Tian, Chao Gao, Tao Xie, Chongchong Yu   +3 more
doaj   +1 more source

Reducing AC impedance measurement errors caused by the DC voltage dependence of broadband high-voltage bias-tees [PDF]

, 2007
During the AC impedance characterization of devices, from the kHz-range up to the GHz-range, accuracy can be lost when a DC voltage is applied. Commercial high-voltage broadband bias-tees are often voltage-dependent, which can cause inaccuracies at low ...
Reimann, K., Schmitz, J., Tiggelman, M.P.J.   +2 more
core   +2 more sources

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

VISUALIZATION OF BIOLOGICAL TISSUE IMPEDANCE PARAMETERS

Бюллетень сибирской медицины, 2016
Objective. Investigation the opportunity for measurement of biological tissue impedance to visualize its parameters.Materials and methods. Studies were undertook on the experimental facility, consists of registrating measuring cell, constructed from flat
V. I. Bankov
doaj   +1 more source

Generalized four-point characterization method for resistive and capacitive contacts [PDF]

, 2011
In this paper, a four-point characterization method is developed for resistive samples connected to either resistive or capacitive contacts. Provided the circuit equivalent of the complete measurement system is known including coaxial cable and connector
Brian S. Kim, Chuanle Zhou, Holloway P. H., M. Grayson, N. Işık, Schroder D. K., Van der Pauw L. J., Wang Zhou, Yash D. Shah   +8 more
core   +2 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

METHODOLOGICAL ASPECTS OF LUNG ACOUSTIC IMPEDANSOMETRY

Siberian Journal of Life Sciences and Agriculture, 2023
Background. The pandemic caused by a new coronavirus infection has determined the relevance of the development of non-invasive methods for express examination of the function of external respiration in the interests of medical diagnostics and development
Sergey P. Dragan, Aleksey V. Bogomolov, Vladimir I. Kezik, Sergey V. Drozdov   +3 more
doaj   +1 more source