Results 1 to 10 of about 162,337 (266)

A rare cause of pulmonary hypertension: bilateral pulmonary artery involvement and stent restenosis due to Takayasu arteritis

open access: yesTürk Kardiyoloji Derneği Arşivi, 2014
A 53-year-old female patient was admitted with dyspnea and fatigue. On transthoracic echocardiography, systolic pulmonary artery pressure (PAP) was measured as 90 mmHg, and right heart catheterization revealed pulmonary arterial hypertension.
Gülten Taçoy   +4 more
doaj   +1 more source

VHF Omnidirectional Range (VOR) Experimental Positioning for Stratospheric Vehicles

open access: yesAerospace, 2021
The usage of aeronautical radio-frequency navigational aids can support the future stratospheric aviation as back-up positioning systems. Although GNSS has been extensively redundant in the last years of space operations, radio NavAids can still be ...
Lorenzo Frezza   +3 more
doaj   +1 more source

Dislodgement of coronary stent due to rupture of stent balloon

open access: yesTürk Kardiyoloji Derneği Arşivi, 2015
Rare stent complications, including dislodgement of stent, unexpanded stent, stent fracture and stent loss etc. can occur during percutaneous coronary interventions (PCI).
Burak Ayça   +3 more
doaj   +1 more source

The relationship between HbA1c and cardiovascular events in diabetic patients with coronary angioplasty: A cross-sectional study

open access: yesJournal of Family Medicine and Primary Care, 2022
Introduction: Re-establishment of coronary artery blood flow in diabetic patients has always been a controversial issue in the treatment of cardiovascular diseases.
Seyed Mohammad Hassan Adel   +2 more
doaj   +1 more source

Meteorological aspects of Salomon August Andrée's attempt to reach the North Pole by balloon in 1897 based on 20CR data

open access: yesMeteorologische Zeitschrift, 2017
On 11 July 1897, a Swedish expedition under Salomon August Andrée attempted to reach the North Pole from Spitsbergen by balloon. The flight was terminated after only three days, as the weight of the balloon increased above a critical limit, due to an ice
Dieter Etling
doaj   +1 more source

Paclitaxel coated balloon versus conventional balloon angioplasty in dysfunctional dialysis arteriovenous fistula: a systematic review and meta-analysis of randomized controlled trials

open access: yesRenal Failure, 2022
Purpose To compare the efficacy and safety between paclitaxel coated balloon (PCB) angioplasty and conventional balloon (CB) angioplasty in the treatment of dysfunctional arteriovenous fistula (AVF).
Chuxuan Luo   +5 more
doaj   +1 more source

Model Investigations on Electric Discharges over Balloon-Borne Stratospheric VLF Antennas

open access: yesEnergies, 2022
Long linear antennas for very low frequency radio transmissions, supported by aerostats, unanchored, and raised to high altitudes, present themselves as slow-moving, highly conductive disturbances in cloud layers, acquiring an electrical charge and being
Tomasz Aleksander Miś   +2 more
doaj   +1 more source

A BALLOON SPIDER [PDF]

open access: yesThe Canadian Entomologist, 1873
“The American Naturalist” for May, 1871, contains an interesting article on “Flying Spiders,” by J. H. Emerton. The species noticed by him are, no doubt, allied to the gossamer of Europe, and the phenomenon occurs early in autumn on the Islands of the St.
openaire   +1 more source

Retrograde approach for percutaneous closure in a patient with ruptured sinus of Valsalva

open access: yesTürk Kardiyoloji Derneği Arşivi, 2014
In this report, we present a 37-year-old male with ruptured right sinus of Valsalva. He was treated by percutaneous closure of the rupture using the retrograde approach. The procedure was performed successfully within 26 minutes.
Erdogan İlkay   +3 more
doaj   +1 more source

Acoustic Waves From a Distant Explosion Recorded on a Continuously Ascending Balloon in the Middle Stratosphere

open access: yesGeophysical Research Letters, 2023
A helium‐filled mylar balloon carrying a smartphone and infrasound sensors ascended to a stratospheric height of 35 km over the surface detonation of a chemical explosive, with a total acoustic propagation distance of 127 km.
S. K. Popenhagen   +3 more
doaj   +1 more source

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