Search results for " Temperature variations"

showing 2 items of 2 documents

Effects of temperature on total phenolic compounds in Cystoseira amentacea (C. Agardh) Bory (Fucales, Phaeophyceae) from southern Mediterranean Sea

2015

The aim of this study was to test the effects of temperature on phenolic content of the brown seaweed Cystoseira amentacea. Phenolic compounds are secondary metabolites involved in different protection mechanisms as, for example, against grazers, epiphytes and UV radiation. Seasonal variations of phenolic content in C. amentacea were analysed and laboratory experiments, in which C. amentacea was exposed to an increase of temperature (25°C and 30°C), were performed. Total phenolic content (TPC) was determined colorimetrically with the Folin–Ciocalteu reagent. In C. amentacea, a seasonal pattern in TPC was observed, with a maximum value in winter-spring. C. amentacea responded significantly t…

0106 biological sciencesCystoseira amentacea Mediterranean Sea phenols secondary metabolites temperature variations010504 meteorology & atmospheric sciencesbiology010604 marine biology & hydrobiologySettore BIO/02 - Botanica SistematicaCystoseira amentaceaPlant Sciencebiology.organism_classification01 natural sciencesMediterranean seaBrown seaweedBotanySettore BIO/04 - Fisiologia VegetaleEpiphyteFucalesEcology Evolution Behavior and Systematics0105 earth and related environmental sciences
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A Computational Study on Temperature Variations in MRgFUS Treatments Using PRF Thermometry Techniques and Optical Probes

2021

Structural and metabolic imaging are fundamental for diagnosis, treatment and follow-up in oncology. Beyond the well-established diagnostic imaging applications, ultrasounds are currently emerging in the clinical practice as a noninvasive technology for therapy. Indeed, the sound waves can be used to increase the temperature inside the target solid tumors, leading to apoptosis or necrosis of neoplastic tissues. The Magnetic resonance-guided focused ultrasound surgery (MRgFUS) technology represents a valid application of this ultrasound property, mainly used in oncology and neurology. In this paper

Optical fiberMaterials scienceInterferometric optical fibers MRgFUS Proton resonance frequency shift RBF neural networks Referenceless thermometry Temperature variationslcsh:Computer applications to medicine. Medical informaticsImaging phantomlcsh:QA75.5-76.95Article030218 nuclear medicine & medical imaginglaw.invention03 medical and health sciencesinterferometric optical fibers0302 clinical medicinelawMedical imagingRadiology Nuclear Medicine and imaginglcsh:PhotographyElectrical and Electronic EngineeringReferenceless ther-mometryProton resonance frequencytemperature variationsbusiness.industryMRgFUSUltrasoundproton resonance frequency shiftFocused ultrasound surgerylcsh:TR1-1050Computer Graphics and Computer-Aided DesignRBF neural networksClinical PracticeInterferometryreferenceless thermometrylcsh:R858-859.7Computer Vision and Pattern Recognitionlcsh:Electronic computers. Computer sciencebusiness030217 neurology & neurosurgeryInterferometric optical fibers; MRgFUS; Proton resonance frequency shift; RBF neural networks; Referenceless ther-mometry; Temperature variationsBiomedical engineeringJournal of Imaging
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