Publications by authors named "J A Thomasson"

Background: Spontaneous hepatic hemorrhage is a rare condition, most commonly diagnosed in patients with hepatocellular carcinoma or hepatic adenomas, and is seldom caused by metastatic disease. In this case report, we present a patient with spontaneous hepatic hemorrhage due to hepatic metastasis of papillary thyroid carcinoma, an exceptionally rare occurrence.

Case Presentation: The patient was a 77-year-old white male with a history of atrial fibrillation treated with apixaban.

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Background: Posttraumatic stress disorder (PTSD) is a psychiatric disease that may follow traumatic exposure. Current treatments fail in about 30% of patients. Although repeated transcranial magnetic stimulation (rTMS) applied to the prefrontal cortex has been shown to be effective in the treatment of PTSD, the mechanisms need further investigation.

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Background: Postoperative management after surgery for perforated peptic ulcer is still burdened by old traditions. All available data for fast-track recovery in this setting are either very unspecific or underpowered. The aim of this study was to evaluate fast-track recovery in this diagnosis-specific context in a larger sample.

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A field-ready, fiber-based high spatial sampling snapshot imaging spectrometer was developed for applications such as environmental monitoring and smart farming. The system achieves video rate frame transfer and exposure times down to a few hundred microseconds in typical daylight conditions with ∼63,000 spatial points and 32 spectral channels across the 470nm to 700nm wavelength range. We designed portable, ruggedized opto-mechanics to allow for imaging from an airborne platform.

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Article Synopsis
  • Unmanned aerial vehicles (UAVs) are increasingly used in agriculture for crop monitoring, utilizing RGB and multispectral cameras for effective field phenotyping.
  • A collaborative driving system was developed that enables multiple UAVs to capture images from different angles to reduce measurement errors caused by drone and plant movement.
  • The study verified the developed flight algorithms through a simulation and real-field tests, achieving high accuracy comparable to commercial UAV programs (RMSE of 0.36 m in simulation and 0.46 m in reality).
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