Publications by authors named "H J Marais"

Background: Mechanical ventilation is a critical but resource-intensive treatment. Automated tools are common in screening diagnostics, whereas real-time, continuous trend analysis in mechanical ventilation remains rare. Current techniques for monitoring lung conditions are often invasive, lack accuracy, and fail to isolate respiratory resistance-making them impractical for continuous monitoring and diagnosis.

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Objective: To describe a case of tracheal injury secondary to gunshot trauma in a rhinoceros.

Animals: 5-year-old female white rhinoceros (Ceratotherium simum).

Clinical Presentation, Progression, And Procedures: The rhinoceros was found alive with an apparent bullet entry wound cranial to the left shoulder.

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Global health education programs have grown in number and rigor with the development of learning objectives, competency frameworks, and assessment tools. This study aimed to assess whether prompted reflective writing could demonstrate medical student learning of physician competencies during global clinical rotations. From 2014 to 2018, 135 medical students who participated in global health clinical rotations responded to four reflective writing prompts.

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Fault detection is an important part of process supervision, especially in processes where there are strict requirements on the process outputs like in wastewater treatment. Statistical control charts such as Shewhart charts, cumulative sum (CUSUM) charts, and exponentially weighted moving average (EWMA) charts are common univariate fault detection methods. These methods have different strengths and weaknesses that are dependent on the characteristics of the fault.

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South Africa is home to some of the world's most endangered wildlife, with the White rhinoceros () among its most threatened species due to its highly sought-after horn. Since the reproduction number is below the mortality rate, there is a decrease in rhinos year over year, urgently requiring changes and saving the survivors. In this study, the efficacy of medical grade honey (MGH) for wound care in rhinos was investigated.

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