Yeats at Oxford

Nichols, Beverley

doi:10.1007/978-1-349-02992-1_41

Cited by 3 publications

(3 citation statements)

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“…PWA is frequently measured using radial PPW [28]. Radial artery pulse waveforms can be mathematically transformed to calculate aortic pressures, which have been shown to be cardiovascular health [29–31] and arterial stiffness indicators [32]. Coronary of radial artery can also be accurately predicted by analyzing the pulse waveforms of radial artery [33].…”

Section: Introductionmentioning

confidence: 99%

An FBG‐based optical pressure sensor for the measurement of radial artery pulse pressure

Gowda,

Sharan,

Saara K

et al. 2024

Journal of Biophotonics

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One of the diagnostic tool for clinical evaluation and disease diagnosis is a pulse waveform analysis. High fidelity radial artery pulse waveforms have been investigated in clinical research to compute central aortic pressure, which has been demonstrated to be predictive of cardiovascular diseases. The radial artery must be inspected from several angles in order to obtain the best pulse waveform for estimate and diagnosis. In this study, we present the design and experimental testing of an optical sensor based on Fiber Bragg Gratings (FBG). A 3D printed device along with the FBG is used to measure the radial artery pulses. The proposed sensor is used for the purpose of quantifying the radial artery pulse waveform across major pulse position point. The suggested optical sensing system can measure the pulse signal with good accuracy. The main characteristic parameters of the pulse can then be retrieved from the processed signal for their use in clinical applications. By conducting experiments under the direction of medical experts, the pulse signals are measured. In order to experimentally validate the sensor, we used it to detect the pulse waveforms at Guan position of the wrist's radial artery in accordance with the diagnostic standards. The findings show that combining optical technologies for physiological monitoring and radial artery pulse waveform monitoring using FBG in clinical applications are highly feasible.

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Section: Introductionmentioning

confidence: 99%

An FBG‐based optical pressure sensor for the measurement of radial artery pulse pressure

Gowda,

Sharan,

Saara K

et al. 2024

Journal of Biophotonics

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“…The main chemical determinants of membrane lipid fluidity in their presumed order of significance are the cholesterol content, the degree of saturation/unsaturation of phospholipid acyl chains and phospholipid polar headgroup composition [2,3]. Alterations in cellular and/or subcellular lipid components can be found related to some pathological processes, such as myocardial infarction and stress [4], atherosclerosis [5], diabetes [6] and carcinogenesis [7][8][9]. The concept of membrane homoeostasis [10] implies that such change in lipid composition, and thus in the fluidity of cellular or subcellular membranes, may be a major event occurring in such pathology, under the influence of a variety of etiological factors.…”

Section: Introductionmentioning

confidence: 99%

Homoeostatic control of membrane cholesterol and fatty acid metabolism in the rat liver

Garg¹,

Sabine²

1988

Biochemical Journal

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Experiments were designed to assess the effect of cholesterol feeding, with or without high levels of either saturated (coconut oil) or unsaturated (sunflower-seed oil) fat on the fatty acid composition of hepatic microsomal membrane lipids, as well as on the activities of several membrane-bound enzymes of cholesterol synthesis and metabolism. Administration of 2% (w/w) cholesterol in the rat diet inhibited hydroxymethylglutaryl-CoA reductase activity, and this inhibition was much more pronounced when cholesterol was fed in combination with unsaturated rather than with saturated fat. Cholesterol 7 alpha-hydroxylase activity was increased by all the high-cholesterol diets and inhibited by both the high-fat diets. Cholesterol esterification, as assessed by acyl-CoA:cholesterol acyltransferase (ACAT) activity, was enhanced after unsaturated-fat feeding. Cholesterol supplement, without any added fat, failed to elicit any significant increase in ACAT activity, whereas consumption of cholesterol in combination with unsaturated fat led to the greatest increase in ACAT activity. After cholesterol feeding, C18:1 and C18:2 fatty acids in the microsomal phospholipids were increased, with concomitant decreases in C18:0, C20:4 and C22:6 fatty acids, leading to an overall decrease in membrane unsaturation, irrespective of the particular fat supplement. It can be concluded that the inhibition of cholesterol biosynthesis and the enhancement of cholesterol utilization, either by increased bile formation or by increased cholesterol esterification, after cholesterol feeding, may not be enough to prevent cholesterol accumulation in the microsomal membranes. Then, to compensate for the altered fluidity resulting from cholesterol enrichment, the unsaturation of membrane phospholipids is decreased, which would in turn have an effect on membrane lipid fluidity opposite to that of increased cholesterol.

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“…Kiedy oglądamy dokumenty uczestniczące, spodziewamy się, że historia zostanie nam zaprezentowana przez kogoś, kto aktywnie się w nią angażuje, a nie jedynie dyskretnie ją obserwuje, poetycko przekształca czy podporządkowuje przyjętej argumentacji. Filmowiec nie ukrywa się już za zasłoną komentarza z offu (...), ale staje się aktorem społecznym (prawie) na równi z innymi 16 . Głos autora oznacza w tym wypadku niezapośredniczoną, osobistą perspektywę oglądu 17 .…”

unclassified

„Further from Poland, Closer to…?” (Polska) historia jako „work-in-progress”

Korczarowska

2018

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Tematem artykułu jest film Jill Godmilow Far From Poland analizowany w kontekście hybrydowej formy eseju filmowego. Film Godmilow został tu potraktowany jako case study dla refleksji nad funkcją materiału found footage i jego relacją do dyskursu historycznego. Michael Zryd w inspirującym artykule Found Footage Film as Discursive Metahistory pisze: Artysta wykorzystujący „found footage” poddaje krytycznemu badaniu historię stojącą za obrazem, dyskursywnie osadzoną w obrębie historii produkcji, cyrkulacji i konsumpcji. Esej Godmilow może służyć jako paradygmatyczny przykład tezy Zryda. Far From Poland odwołuje się do konkretnych „faktów historycznych”, jednak nie jest komentarzem do ruchu „Solidarności” we wczesnych latach 80., ale subiektywnym notatnikiem i autoportretem reżyserki.

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Yeats at Oxford

Cited by 3 publications

References 0 publications

An FBG‐based optical pressure sensor for the measurement of radial artery pulse pressure

An FBG‐based optical pressure sensor for the measurement of radial artery pulse pressure

Homoeostatic control of membrane cholesterol and fatty acid metabolism in the rat liver

„Further from Poland, Closer to…?” (Polska) historia jako „work-in-progress”

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