影响热带气候中骨化速度的因素的回顾性分析
Sameera A Gunawardena1, Pravini Abeyratne2, Ajith Jayasena3
1Department of Forensic Medicine and Toxicology, Faculty of Medicine, University of Colombo, Sri Lanka; Department of Pathology, School of Medicine, International Medical University, Kuala Lumpur, Malaysia.
Science & justice : journal of the Forensic Science Society
|September 17, 2023
概括
在热带气候下,在骨化遗骸中估计死后间隔 (PMI) 很困难. 这项研究发现斯里兰卡现有的方法不可靠,强调需要对诸如季风降雨等分解因素进行特定区域的研究.
科学领域:
- 法医科学 法医科学 法医科学
- 塔法诺米 (TAPHONOMY) 是一种听音系统.
- 气候科学 气候科学
背景情况:
- 在骨化病例中估计死后间隔 (PMI) 存在重大挑战.
- 现有的PMI估计方法 (总体体积分,累积度日) 主要基于温带气候,在热带地区的可靠性有限.
- 斯里兰卡的法医调查受到地区特定的语音学研究缺乏的阻碍.
研究的目的:
- 在斯里兰卡等热带气候地区开发特定区域的,基于证据的PMI估计指南.
- 分析与当地天气数据相关的骨化遗骸的塔法诺米.
- 在斯里兰卡背景下评估现有的全身分 (TBS) 和累积学位日 (ADD) 方法的适用性.
主要方法:
- 从法医病例记录中分析了13个具有已知的PMI的骨化遗骸.
- 语音分析与当地天气数据 (温度,湿度,降雨量) 相关联.
- 观察到的累积度日 (ADD) 与全身分 (TBS) 值的参考范围的比较.
主要成果:
- 在全身分 (TBS) 和死后间隔 (PMI) 之间观察到微弱的正相关性.
- 骨化早在室内15天就发生了;在TBS 32的23天见到的最高率.
- 暴露在季风雨中的身体表现出较低的平均骨化率,这表明分解减少.
- 累积度日 (ADD) 与TBS没有相关性;实际的ADD值在大多数情况下都明显低于参考范围.
结论:
- 现有的基于总体体积分 (TBS) 和累积度日 (ADD) 的公式在斯里兰卡的气候中对估计死后间隔 (PMI) 的适用性不佳.
- 需要在热带环境中进行进一步的语音学和昆虫学研究.
- 未来的研究应该专注于了解季风模式对影响骨化率的生物和非生物因素的影响.
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