Results 11 to 20 of about 29,659 (207)

Under pressure: pulmonary hypertension associated with left heart disease [PDF]

open access: yesEuropean Respiratory Review, 2015
Pulmonary hypertension (PH) associated with left heart disease (PH-LHD) is the most common type of PH, but its natural history is not well understood. PH-LHD is diagnosed by right heart catheterisation with a mean pulmonary arterial pressure ≥25 mmHg and
Harrison W. Farber, Simon Gibbs
doaj   +4 more sources

A nationwide assessment of hepatocellular adenoma resection: Indications and pathological discordance

open access: yesHepatology Communications, EarlyView., 2022
Abstract Hepatocellular adenomas (HCAs) are benign liver tumors associated with bleeding or malignant transformation. Data on the indication for surgery are scarce. We analyzed indications and outcome of patients operated for HCAs < 50 mm compared to HCAs ≥ 50 mm. Changes in final postoperative diagnosis were assessed.
Martijn P. D. Haring   +70 more
wiley   +1 more source

Machine learning to differentiate pulmonary hypertension due to left heart disease from pulmonary arterial hypertension

open access: yesERJ Open Research, 2023
Background and aims Pulmonary hypertension due to left heart disease (PH-LHD) is the most frequent form of PH. As differential diagnosis with pulmonary arterial hypertension (PAH) has therapeutic implications, it is important to accurately and ...
Katleen Swinnen   +11 more
doaj   +1 more source

Energy transport characteristics of converging Richtmyer–Meshkov instability

open access: yesAIP Advances, 2020
In this paper, the Richtmyer–Meshkov (RM) instability in spherical and cylindrical converging geometries with a Mach number of about 1.5 is investigated by using the direct numerical simulation method.
Yaowei Fu, Changping Yu, Xinliang Li
doaj   +1 more source

Left-Handedness Among Orthopaedic Surgeons and Trainees

open access: yesJBJS Open Access, 2020
Background:. The impact of left-handedness on orthopaedic surgeons and trainees has not been well described. We investigated the prevalence and perceived impact of left-handedness among orthopaedic surgeons and trainees. Methods:. We distributed a survey
Samir Sabharwal, MD, MPH   +4 more
doaj   +1 more source

Local health department engagement with workplaces during the COVID-19 pandemic—Examining barriers of and facilitators to outbreak investigation and mitigation

open access: yesFrontiers in Public Health, 2023
ObjectivesTo document local health department (LHD) COVID-19 prevention or mitigation activities at workplaces in the United States and identify facilitators for and barriers to these efforts.MethodsWe conducted a web-based, cross-sectional national ...
Tessa Bonney, Michael P. Grant
doaj   +1 more source

Practice patterns of pulmonary hypertension secondary to left heart disease among pediatric pulmonary hypertension providers

open access: yesPulmonary Circulation, 2021
Development of pulmonary hypertension (PH) in patients with left side heart disease (LHD) is a predictor of poor prognosis. The use of pulmonary vasodilators in PH associated with LHD (PH-LHD) is controversial.
Hythem Nawaytou   +5 more
doaj   +1 more source

NAVIGATION SYSTEM FOR LHD MACHINES

open access: yesIFAC Proceedings Volumes, 1995
Load, haul and dump (LHD) machines are used in mines to carry ore from loading point to dumping point. This paper presents techniques developed to automatize the work of LHD machines. The work concentrates on navigation of the .machines using dead reckoning, artificial beacons and distance measurement from vehicle to tunnel walls.
Lehtinen Hannu   +3 more
openaire   +2 more sources

Left ventricular heart failure and pulmonary hypertension [PDF]

open access: yes, 2015
In patients with left ventricular heart failure (HF), the development of pulmonary hypertension (PH) and right ventricular (RV) dysfunction are frequent and have important impact on disease progression, morbidity, and mortality, and therefore warrant ...
Anton Vonk-Noordegraaf   +8 more
core   +2 more sources

Research Status and Development Trend of Underground Intelligent Load-Haul-Dump Vehicle—A Comprehensive Review

open access: yesApplied Sciences, 2022
The underground intelligent load-haul-dump vehicle (LHD) is a product of the deep integration of traditional LHD with information network technology, automatic controlling and artificial intelligence technology.
Wei Xiao, Mingxia Liu, Xubing Chen
doaj   +1 more source

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