Analysis of the performances of various controllers adopted in the biomedical field for blood glucose regulation: a case study of the type-1 diabetes.

Diabetes remains a critical global health concern that necessitates urgent attention. The contemporary clinical approach to closed-loop care, specifically tailored for insulin-dependent patients, aims to precisely monitor blood glucose levels while mitigating the risks of hyperglycaemia and hypoglycaemia due to erroneous insulin dosing. This study seeks to address this life-threatening issue by assessing and comparing the performance of different controllers to achieve quicker settling and convergence rates with reduced steady-state errors, particularly in scenarios involving meal interruptions.

Monte Carlo simulation of SPECT characterization for 223 Ra post-injection scintigraphy.

Objectives: 223 Ra is a promising α-emitting radionuclide for prostate cancer metastasis palliative treatment. Post-injection scintigraphy is of major importance to verify the concentration of the radiopharmaceutical in the targeted sites. Given the low activity administered to patients, the choice of acquisition parameters, including the collimator type, the energy window's width and the photopeak energy to be used, is primordial for the image quality.

Airborne ultrasound transmission through circular damages in polymer plates.

Polymer tanks made of Polypropylene (PP) sub-assemblies are commonly used for their ease of formability, surface and optical quality. The tightness of an assembly is classically assessed by pressurizing the vessel and measuring a pressure drop after a given period. In order to avoid this long and imprecise method, active ultrasound methods can be envisioned, but should be carefully designed in order to derive the proper transducer configurations, frequencies and assess the performances of the method in terms of repeatability and detectability.

Dose to Medical Personnel.

Radioiodine I is successfully used in nuclear medicine for the treatment of hyperthyroidism and thyroid cancer. This radionuclide emits β particles used for the treatment and gamma photons used for diagnosis. The aim of this study is to determine gamma radiation doses received by medical personnel situated at a distance of 1 m from patients having ingested I for the treatment of hyperthyroidism diseases.