Results 71 to 80 of about 48,338 (205)

Cheilanthes contracta (BOL218483)

, 2023
Kingdom: PlantaeDivision: PolypodiophytaClass: PolypodiopsidaOrder: PolypodialesFamily: PteridaceaeScientific name: Cheilanthes contracta (Kunze) Mett.
Bolus Herbarium (9862976)
core   +1 more source

Assessment of Prevalence and Characteristics of Valvular Heart Disease: A Cross‐Sectional Study From Yazd Health Study

Health Science Reports, Volume 9, Issue 4, April 2026.
ABSTRACT Background and Aims Valvular heart diseases (VHDs) significantly contribute to global cardiovascular mortality and morbidity, with a shift in epidemiology from rheumatic heart disease (RHD) in developing nations to degenerative valvular diseases in aging populations of industrialized countries.
Hasan Haghani Nejad, Sedighe Sadeghi, Mohammad Hossein Soltani, Elahe Zare, Forough Sadat Tabatabaei, Mojtaba Jokar   +5 more
wiley   +1 more source

The Conundrum of Tricuspid Regurgitation Grading

Frontiers in Cardiovascular Medicine, 2018
Findings from early percutaneous tricuspid intervention trials have shown that the severity of tricuspid regurgitation (TR) far exceeded the current definition of severe TR.
Yun Yun Go, Raluca Dulgheru, Raluca Dulgheru, Patrizio Lancellotti, Patrizio Lancellotti, Patrizio Lancellotti   +5 more
doaj   +1 more source

Hoplitis contracta

, 2019
Hoplitis contracta (W ALKER,1871) Osmia contracta sp.n.: WALKER 1871: 47 (descr. ♀ ♂, Harkeko, Dahlak Island). Osmia contracta WALKER, 1871: DE DALLA TORRE 1896: 391 (world cat.).
Madl, Michael
core   +1 more source

Three Ventricular Assist Devices (True TriVAD) as Bridge to Durable Biventricular Support (BiVAD) in LVAD Patient With Severe Aortic Regurgitation

Artificial Organs, Volume 50, Issue 4, Page 631-635, April 2026.
An LVAD patient with severe aortic regurgitation (AR) developed right heart failure and multi‐organ dysfunction (MOD). tRVAD support caused LV overload and pulmonary edema. Impella 5.5 implantation successfully unloaded the LV and stabilized the patient, enabling durable RVAD implantation with surgical aortic valve replacement.
Nikolaos Cholevas, Felix Schoenrath, Nicolas Merke, Denis Fries, Marcus Mueller, Johanna Mulzer, Evgenij Potapov   +6 more
wiley   +1 more source

Pressure losses at the transition from radial flow within fractures to longitudinal flow within production wells [PDF]

, 1980
Improved energy production from many types of energy reservoirs requires a better understanding of the fluid mechanics in the vicinity of the fracture-wellbore intersection.
Murphy, H., Pearce, R.
core   +1 more source

Study of Tricuspid Valve Regurgitation by 2D and 3D Echocardiography: Comparison Between Transthoracic and Transesophageal Examination for Screening Interventions

Echocardiography, Volume 43, Issue 4, April 2026.
Forty‐two patients with significant tricuspid regurgitation (TR) underwent transthoracic (TTE) and transesophageal (TEE) echocardiography. The same day wo‐dimensional (2D) and three‐dimensional (3D) parameters obtained with both modalities were compared.
Piera Ciaramella, Amedeo Pergolini, Francesco Candido, Alice Tolomei, Lucrezia Netti, Sara Monosilio, Viviana Maestrini, Antonio Giovanni Cammardella, Marco Russo, Giampaolo Luzi   +9 more
wiley   +1 more source

Problems related to the assessment of fluid velocity and volume flow in valve regurgitation using ultrasound Doppler technique

, 1987
Understanding of the factors affecting regurgitant flow through a heart valve and of the inherent limitations of the Doppler technique is needed to interpret correctly the information obtained during an ultrasound Doppler examination.
Loyd, Dan,, Ask, Per,, Wranne, Bengt,
core   +1 more source

Evaluation of the Haemodynamic Behaviour of Stenosed Aortic Heart Valves Using Fluid Structure Interaction Modelling

International Journal for Numerical Methods in Biomedical Engineering, Volume 42, Issue 3, March 2026.
The haemodynamic environment of generic calcific and rheumatic aortic valves of various severities is analysed through the use of 3D FSI modelling techniques. For the same severity and similar flow rates, the rheumatic valves offer higher resistance to the flow of blood compared to the calcific valves.
Lindi Grobler Kock, Ryno Laubscher, Johan van der Merwe, Martin P. Venter, Anton F. Doubell, Philip G. Herbst   +5 more
wiley   +1 more source

On the Multiple Steady Flow States in Spindle Shaped Geometry of Bridge Foundations [PDF]

Journal of Applied Fluid Mechanics
Flow hysteresis in a channel with a supercritical flow in the vicinity of a spindle-shaped bridge foundation (SSBF) with a change in flow rate has been investigated in a laboratory for the first time.
E. Aminvash, R. Daneshfaraz, V. Sume, S. Sadeghfam, J. Abraham   +4 more
doaj   +1 more source