Results 41 to 50 of about 600,653 (291)

Noninvasive tri-level positive airway pressure ventilation: is it a new challenging mode in management of patients with chronic obstructive pulmonary disease?

Egyptian Journal of Chest Disease and Tuberculosis, 2020
Background Chronic obstructive pulmonary disease (COPD) is a serious issue of sickness and rise in global fatality rates. Noninvasive positive pressure ventilation is the first-line therapy in patients with COPD with respiratory fialure (RF).
Osama F Mansour, Rabab A El Wahsh, Rana H El Helbawy, Mohamed A Abdelaal   +3 more
doaj   +1 more source

Fractional crop-planting area projection by integrating geographic grid data and agricultural statistics based on random forest regression

International Journal of Digital Earth, 2023
Accurate fractional crop-planting area (FCPA) mapping is a challenging task as it requires leveraging the advantages of geographic data in detailed spatial expression and agricultural statistics in the description of crop types and quantitative ...
Chunlin Huang, Jinliang Hou, Xianghua Li, Ying Zhang, Jifu Guo   +4 more
doaj   +1 more source

Development of an RF IV waveform based stress test procedure for use on GaN HFETs

, 2012
This paper reports on the development of an RF IV waveform based stress test procedure. DC and low-voltage RF characterisation was carried out before and after high power RF stress.
Tasker, Paul J., Benedikt, Johannes, McGenn, William, Uren, Michael J.   +3 more
core   +1 more source

The dynamics of sowing areas and productivity of spring barley in the Russian Federation

Зерновое хозяйство России, 2018
Spring barley is one of the most early-maturing and adaptable crops with a great diversity of forms and varieties occupying a significant part of sowing areas in RF.
G. A. Filenko, T. I. Firsova, Yu. G. Skvortsova, E. G. Filippov   +3 more
doaj   +2 more sources

Compact modelling in RF CMOS technology [PDF]

, 2011
With the continuous downscaling of complementary metal-oxide-semiconductor (CMOS) technology, the RF performance of metal-oxide-semiconductor field transistors (MOSFETs) has considerably improved over the past years.
Liu, Jun
core  

Design of controlled RF switch for beam steering antenna array

, 2008
YesA printed dipole antenna integrated with a duplex RF switch used for mobile base station antenna beam steering is presented. A coplanar waveguide to coplanar strip transition was adopted to feed the printed dipole.
Abd-Alhameed, Raed, Abusitta, M.M., Excell, Peter S., Zhou, Dawei   +3 more
core   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

IgM rheumatoid factor (RF), IgA RF, IgE RF, and IgG RF detected by ELISA in rheumatoid arthritis. [PDF]

Annals of the Rheumatic Diseases, 1987
One hundred patients with rheumatoid arthritis (RA), of whom 73 were seropositive by latex or Waaler-Rose (WR) assays, or both, 100 healthy subjects, and 102 diseased controls (22 patients with systemic lupus erythematosus (SLE) and 80 with bronchial asthma) were evaluated for the presence of IgM rheumatoid factor (RF), IgA RF, IgE RF, and IgG RF by an
M, Gioud-Paquet, M, Auvinet, T, Raffin, P, Girard, M, Bouvier, E, Lejeune, J C, Monier   +6 more
openaire   +2 more sources

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

Molecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano, Giuseppina Minopoli, Simona Romano, Laura Marrone, Katia Aquilano, Maria Lina Tornesello, Raffaella Faraonio   +6 more
wiley   +1 more source

Analysis of Customer Churn in Telecommunication Industry with Machine Learning Methods

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2023
In today's conditions, customer loyalty has gained importance with the increase in the competitive environment between companies, the development of marketing strategies and the improvement of companies.
Özge Nalan Bilişik, Damla Tuğba Sarp
doaj   +1 more source