Results 21 to 30 of about 33,676 (247)

An Active Annular Ring Frequency Selective Surface [PDF]

open access: yes, 2011
Offering good performance in terms of all polarizations affected and good angular stability, the ring element is a popular choice in frequency selective surface (FSS) designs.
Paul S. Taylor   +5 more
core   +1 more source

Experimental Phase Plate Employing a Phase Modulated Active Frequency Selective Surface [PDF]

open access: yes, 2010
A novel method employing a phase modulated frequency selective surface (FSS) to improve the wireless communications coverage of enclosed spaces in the built environment through the filling of black spots is described.
Parker, Edward A.   +5 more
core   +1 more source

Pronostic des Hémorragies du Post-Partum Immédiat à Lomé (Togo)

open access: yesHealth Research in Africa
RÉSUMÉ Introduction. L'hémorragie du post-partum immédiat (HPPI), première cause de mortalité maternelle mondiale, représente un défi critique en Afrique subsaharienne. Objectif.
Ketevi AA   +8 more
doaj   +1 more source

THE “EXTRA-MEDIA” THICKNESS OF CAROTID ARTERIES AS A NOVEL MARKER OF PERIVASCULAR VISCERAL ADIPOUS TISSUE: ACCENT ON THE RELATION WITH VASCULAR REMODELLING PARAMETERS

open access: yesРоссийский кардиологический журнал, 2016
Aim. To perform ultrasound assessment of the “extra-media” thickness (EMT) of carotid arteries and to analyze its association with vascular stiffness and sonographical indexes of carotid arteries condition in patients with abdominal obesity.Material and ...
M. A. Druzhilov   +3 more
doaj   +1 more source

Piezo1-mediated unfolded protein response in goblet cells regulates intestinal mucus barrier homeostasis through the Ca<sup>2</sup> <sup>+</sup>-IRE1α-XBP1 pathway. [PDF]

open access: yesClin Transl Med
This study demonstrates that activation of Piezo1 channels in goblet cells by intestinal mechanical stimulation modulates ER calcium homeostasis via calcium ion (Ca2+) flux, which in turn regulates Mucin2 production and synthesis through the IRE1α‐XBP1. Intraperitoneal administration of Yoda1 alleviates mucus barrier impairment in DSS/WAS‐treated mice.
Wu J   +13 more
europepmc   +2 more sources

Quantitative Chemical Exchange Saturation Transfer Imaging With Golden-Angle Radial k-Space Sampling and Locally Low-Rank Reconstruction. [PDF]

open access: yesNMR Biomed
A radial CEST‐MR Fingerprinting method is demonstrated that avoids EPI distortion using low‐rank reconstruction and neural network quantification. It produced accurate 3D brain CEST maps in 11 min, with simulation errors below 14%, strong agreement with conventional fitting, high reproducibility (ICC up to 0.92), and limited motion‐related errors.
Cohen O, Sutton EJ, Young RJ, Otazo R.
europepmc   +2 more sources

Why We Want Children: The Value of Children and the Preferred Number of Children in the Czech Republic

open access: yesSociologický Časopis, 2009
Surveys often reveal that the number of children people would like to have is greater than the number they actually have. This article examines the question of why people actually want children and bases its answers on data from the 2006 Value of ...
Petr Pakosta
doaj   +1 more source

Populism and Euroscepticism in the Czech Republic: Meeting Friends or Passing By? [PDF]

open access: yesRomanian Journal of European Affairs, 2016
Euroscepticism and populism, however defined, are often taken as two sides of the same coin, both in public discourse and academic debates. This paper challenges this common wisdom by analysing the case of the Czech Republic.
Petr Kaniok, Vlastimil Havlík
doaj  

Dual-band Frequency Selective Surface Design for GSM Shielding Applications

open access: yesHavacılık ve Uzay Teknolojileri Dergisi, 2021
Global Mobile Communications (GSMs) systems have been developed very rapidly over the past decades. Mobile phone base stations are located almost everywhere nowadays.
Bora Döken   +3 more
doaj  

Dual-Band Tunable Screen using Complementary Split Ring Resonators [PDF]

open access: yes, 2010
Active frequency selective surfaces (FSS) based on slot-form split ring resonators are described. Switching and tuning have been achieved using two different biasing circuit configurations.
Parker, Edward A.   +5 more
core   +1 more source

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