Results 41 to 50 of about 54,048 (301)

Severe aortic regurgitation due to endocarditis in a horse [PDF]

open access: yes, 2011
A 4-year-old Belgian Warmblood mare was presented because of fever, exercise intolerance, a loud diastolic cardiac murmur and a remarkable bounding pulsation that was palpable all over the body.
Afonso, Tiago   +4 more
core  

Methods and systems for extracting venous pulsation and respiratory information from photoplethysmographs [PDF]

open access: yes, 2019
A system and method for separating a venous component and an arterial component from a red signal and an infrared signal of a PPG sensor is provided.
Nourani, Mehrdad, Yousefi, Rasoul
core   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

open access: yesMolecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff   +11 more
wiley   +1 more source

Convection and oscillations

open access: yes, 2010
In this short review on stellar convection dynamics I address the following, currently very topical, issues: (1) the surface effects of the Reynolds stresses and nonadiabaticity on solar-like pulsation frequencies, and (2) oscillation mode lifetimes of ...
Balmforth   +31 more
core   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

open access: yesMolecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat   +8 more
wiley   +1 more source

Mud pump pressure pulsation control systems

open access: yes, 2023
Drilling fluid is circulated through the well-bore during drilling operations to transport cuttings from the bottom of the hole to the surface. Hydrostatic high-pressure mud pumps are typically used for this purpose. Triplex pumps, which comprise three pistons mechanically displaced by 120 degrees, are the most common type of mud pump.
Pavković, Danijel   +3 more
openaire   +1 more source

Dynamic atmospheres and winds of cool luminous giants, I. Al$_2$O$_3$ and silicate dust in the close vicinity of M-type AGB stars

open access: yes, 2016
High spatial resolution techniques have given valuable insights into the mass loss mechanism of AGB stars, which presumably involves a combination of atmospheric levitation by pulsation-induced shock waves and radiation pressure on dust.
Ahuja, Rajeev   +3 more
core   +1 more source

Variable turbulent convection as the cause of the Blazhko effect - testing the Stothers model [PDF]

open access: yes, 2011
The amplitude and phase modulation observed in a significant fraction of the RR Lyrae variables - the Blazhko effect - represents a long-standing enigma in stellar pulsation theory.
Alcock   +63 more
core   +2 more sources

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

open access: yesFEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso   +4 more
wiley   +1 more source

Experimental study of effects of buffer tank volume on pressure pulsation in valved linear compressor's pipe system at different frequencies

open access: yesXibei Gongye Daxue Xuebao
The valved linear compressor (VLC) is an essential part of the Joule-Thompson (J-T) throttling cryocooler in the liquid helium temperature region. The pressure pulsation may cause the fluctuation of the temperature and cooling capacity of the cryocooler,
HUANG Qi   +6 more
doaj   +1 more source

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