Results 31 to 40 of about 1,439,918 (348)

Design and development of a novel multi-channel photoplethysmographic research system [PDF]

open access: yes, 2013
Photoplethysmography (PPG) is a technique that uses light to non-invasively obtain a volumetric measurement of an organ with each cardiac cycle. Pulse Oximetry (PO) is an empirical technique which allows the arterial blood oxygen saturation (SpO2 ...
Budidha, K.   +3 more
core   +1 more source

Deep learning-based label-free hematology analysis framework using optical diffraction tomography

open access: yesHeliyon, 2023
Hematology analysis, a common clinical test for screening various diseases, has conventionally required a chemical staining process that is time-consuming and labor-intensive.
Dongmin Ryu   +7 more
doaj   +1 more source

Antidiabetic effect of Tibetan medicine Tang-Kang-Fu-San on high-fat diet and streptozotocin-induced type 2 diabetic rats [PDF]

open access: yes, 2017
The aim of this study was to investigate the antidiabetic effects of a Tibetan medicine, Tang-Kang-Fu-San (TKFS), on experimental type 2 diabetes mellitus (T2DM) rats and to explore its underlying mechanisms.
Duan, Bailu   +8 more
core   +3 more sources

Blood-brain barrier transport kinetics of NOTA-modified proteins : the somatropin case [PDF]

open access: yes, 2020
BACKGROUND: Chemical modifications such as PEG, polyamine and radiolabeling on proteins can alter their pharmacokinetic behaviour and their blood-brain barrier (BBB) transport characteristics. NOTA, i.e. 1,4,7-triazacyclononane-1,4,7-triacetic acid, is a
Bracke, Nathalie   +7 more
core   +1 more source

Reverse chemical ecology approach for the identification of an oviposition attractant for Culex quinquefasciatus. [PDF]

open access: yes, 2018
Pheromones and other semiochemicals play a crucial role in today's integrated pest and vector management strategies. These semiochemicals are typically discovered by bioassay-guided approaches.
Bhagavathy, Ganga   +7 more
core   +1 more source

Exploiting the dynamic properties of FET-based chemical sensors [PDF]

open access: yes, 1989
After a long period of mainly static application of ISFETS, other more sophisticated applications are being developed, based on the exploitation of the dynamic properties of ISFETS. Examples are the use of flow-through cells with sample injection and the
Bergveld, P.
core   +3 more sources

Elaboration of a Method for the Determination of Low-Molecular-Weight Mustard Gas Biomarkers in Biological Samples

open access: yesВестник войск РХБ защиты, 2023
The relevance of the development and the improvement of methods for the determination of metabolites (biomarkers) of toxic substances in biological fluids (blood, urine, etc.) is associated with the need to establish facts of humans and animals exposure ...
D. О. Korneev   +3 more
doaj   +1 more source

The effect of mark enhancement techniques on the presumptive and confirmatory tests for blood [PDF]

open access: yes, 2018
An investigation into the effects of physical and chemical enhancement on subsequent presumptive and confirmatory tests for human blood is presented. Human blood was deposited onto porous (white 80gsm paper and brown envelope) and non-porous (tile and ...
Deacon, Paul   +4 more
core   +4 more sources

Exposure to Endocrine Disruptors and Nuclear Receptors Gene Expression in Infertile and Fertile Men from Italian Areas with Different Environmental Features [PDF]

open access: yes, 2015
Internal levels of selected endocrine disruptors (EDs) (i.e., perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), di-2-ethylhexyl-phthalate (DEHP), mono-(2-ethylhexyl)-phthalate (MEHP), and bisphenol A (BPA)) were analyzed in blood/serum of ...
Bergamasco B   +14 more
core   +2 more sources

Acute response to 7-day therapy with CPAP in patients with moderate to severe obstructive sleep apnea and cardiac arrhytmia [PDF]

open access: yesSleep Science
Introduction: Obstructive Sleep Apnea (OSA) has been associated with an elevated risk of cardiac arrhythmia. Continuous positive airway pressure (CPAP) is the selected treatment for moderate to severe OSA and could improve arrhythmias in the long term ...
Jerónimo Campos   +9 more
doaj   +1 more source

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