Publications by authors named "Jonathan de Oliveira"

Purpose: Student study behaviours that prioritise the UKMLA content map over the local curriculum are a significant risk for UK medical education. To mitigate this, we describe a student-centred faculty process to improve local curriculum guidance based on an evaluation of student study behaviours, concerns and needs. Responses informed the build of an online curriculum map.

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Toxoplasmosis is an important zoonotic disease caused by the parasite and is especially fatal for neotropical primates. In Brazil, the Ministry of Health is responsible for national epizootic surveillance, but some diseases are still neglected. Here, we present an integrated investigation of an outbreak that occurred during the first year of the COVID-19 pandemic among eleven neotropical primates housed at a primatology center in Brazil.

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Medical thermography provides an overview of the human body with two-dimensional (2D) information that assists the identification of temperature changes, based on the analysis of surface distribution. However, this approach lacks spatial depth information, which can be enhanced by adding multiple images or three-dimensional (3D) systems. Therefore, the methodology applied for this paper generates a 3D point cloud (from thermal infrared images), a 3D geometry model (from CT images), and the segmented inner anatomical structures.

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The study of muscle contractions generated by the muscle-tendon unit (MTU) plays a critical role in medical diagnoses, monitoring, rehabilitation, and functional assessments, including the potential for movement prediction modeling used for prosthetic control. Over the last decade, the use of combined traditional techniques to quantify information about the muscle condition that is correlated to neuromuscular electrical activation and the generation of muscle force and vibration has grown. The purpose of this review is to guide the reader to relevant works in different applications of ultrasound imaging in combination with other techniques for the characterization of biological signals.

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In this paper, we present the FPGA implementation of an approximate Hilbert Transform-based envelope detector to compute the magnitude of the received ultrasound echo signals in real-time using a Model-based design flow. The proposed architecture exploits the negative odd-symmetry and interleaved zero-valued coefficients of a Hilbert Transform-based FIR filter to reduce hardware resource requirements and complexity. The hardware design is modeled using the DSP Builder development tool allowing the automatic generation of HDL algorithms directly from the Matlab/Simulink environment.

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Background: Considered a clean operation, breast surgery has surgical site infection (SSI) rates ranging from 4% to 18%, higher than the reference value for clean surgery (<3.4%). The aim of this study was to measure the incidence of SSI in patients undergoing reduction mammoplasty with and without antibiotic prophylaxis, comparing the results and defining the value of antibiotic prophylaxis.

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Article Synopsis
  • The study aimed to evaluate the biomechanical performance of using 7.5mm cannulated screws in an inverted triangle setup for fixing Pauwels type III femoral neck fractures in synthetic bones compared to a control group.
  • Ten synthetic bones were split into a test group (with screws) and a control group (no screws), analyzing fixation resistance and rotational deviation under various displacement conditions.
  • Results indicated that the test group's fixation showed significantly lower mechanical strength compared to the control group, with notable differences in displacement resistance and rotational deviation measurements.
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