Publications by authors named "T Kohyama"
A common forensic problem is cervical fractures, which sometimes need to be diagnosed only by physical examination of the body, without imaging or autopsy. Despite reports from clinical practice describing the association between cervical fractures and head injury, we could not find any analysis of autopsy cases. In addition, discussion of the cervical fracture diagnosis by postmortem computed tomography (PMCT) appears limited.
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- Over the past 40 years, the intensity of tropical cyclones affecting coastal regions has increased, leading to concerns about their impact on forests and tree damage.
- Researchers analyzed data from 11 cyclones and 74 forest plots to understand how factors like maximum sustained wind speed, topographical exposure, tree size, and wood density influence tree damage during these storms.
- Their findings reveal that higher wind speeds and topographical exposure significantly increase tree damage, while denser wood and tree size play complex roles in mitigating damage, especially for smaller trees in extreme wind conditions.
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- * A case study of a 27-year-old man revealed that he had cardiac angiosarcoma with spread to the lung, brain, and bone, presenting primarily with respiratory symptoms at first.
- * Unfortunately, the patient died within 27 days due to bleeding from brain metastases, highlighting the urgent need for immediate treatment like radiotherapy if brain metastases are suspected, even before confirming the diagnosis through biopsy.
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- Ultrasound-guided central venous catheterization is a common procedure, but mechanical complications can still occur.
- An 85-year-old woman underwent procedure for difficult venous access, but the guidewire was misplaced, leading to the catheter being incorrectly inserted into the right subclavian artery instead of the internal jugular vein.
- The case highlights the importance of accurately locating the guidewire during the procedure, suggesting that the needle insertion site should be positioned away from the clavicle to avoid complications.
Despite their fundamental importance the links between forest productivity, diversity and climate remain contentious. We consider whether variation in productivity across climates reflects adjustment among tree species and individuals, or changes in tree community structure. We analysed data from 60 plots of humid old-growth forests spanning mean annual temperatures (MAT) from 2.
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