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Assessment and prediction of index based agricultural drought vulnerability using machine learning algorithms

Kafy AA, Bakshi A, Saha M, Al Faisal A, Almulhim AI, Rahaman ZA, et al.

Sci Total Environ, 2023 Jan 09.
PMID: 36634773 DOI: 10.1016/j.scitotenv.2023.161394

The consequences of droughts are far-reaching, impacting the natural environment, water quality, public health, and accelerating economic losses. Applications of remote sensing techniques using satellite imageries can play an influential role in identifying drought severity (DS) and impacts for a broader range of areas. The Barind Tract (BT) is a region of Bangladesh located northwest of the country and considered one of the hottest, semi-arid, and drought-prone regions. This study aims to assess and predict the drought vulnerability over BT using Landsat satellite images from 1996 to 2031. Several indices, including Normalized Difference Vegetation Index (NDVI), Modified Normalized Difference Water Index (MNDWI), Soil Moisture Content (SMC), Temperature Condition Index (TCI), Vegetation Condition Index (VCI), and Vegetation Health Index (VHI). VHI has been used to identify and predict DS based on VCI and TCI characteristics for 2026 and 2031 using Cellular Automata (CA)-Artificial Neural Network (ANN) algorithms. Results suggest increasing patterns of DS accelerated by the reduction of healthy vegetation (19 %) and surface water bodies (26 %) and increased higher temperature (>5 °C) from 1996 to 2021. In addition, the VHI result signifies a massive increase in extreme drought conditions from 1996 (2 %) to 2021 (7 %). The DS prediction witnessed a possible expansion in extreme and severe drought conditions in 2026 (15 % and 13 %) and 2031 (18 % and 24 %). Understanding the possible impacts of drought will allow planners and decision-makers to initiate mitigating measures for enhancing the communities preparedness to cope with drought vulnerability.
Fulltext Clavicle fracture and subclavian vessels disruption with massive haemothorax mimic intrathoracic injury

Faisham WI, Mohammad P, Juhara H, Munirah NM, Shamsulkamaruljan H, Ziyadi GM

Malays J Med Sci, 2011 Apr;18(2):74-7.
PMID: 22135591

We report a case of open fracture of the clavicle with subclavian artery and vein laceration and perforation of the parietal pleural below the first rib that caused massive haemothorax. Emergency thoracotomy and exploration followed by repair of both vessels were able to salvage the patient and the extremity.
Epidemiology of surgically treated patient in road traffic accident with lower extremity vascular injury from a single centre in Kelantan

Koh SC, Wan Faisham Nu'man WI, Siti Fatimah NMJ, Wan Azman WS, Mohammad P, Arman Zaharil MS

Med J Malaysia, 2020 05;75(3):292-294.
PMID: 32467547

INTRODUCTION: Lower extremity vascular injury can result in either temporary or permanent disability.
METHODS: This is a clinical audit involving all patients admitted to our institution from January 2008 to June 2018 of those who had undergone revascularization surgery for lower limb trauma.
RESULTS: Fifty-nine patients were in this study with a mean age of 28.1 years. Most of the patients were motorcyclist involved in road traffic accidents with cars (n=30, 50.8%). The popliteal artery was most commonly seen injury (n=41, 69.5%). The mean duration of ischaemia was 14.1 hours. The limb salvage rate was 89.8%.
CONCLUSION: Lower extremity vascular injury caused by RTA treated in our institution predominantly involved young patients aged between 18-30 years associated with long bone fractures causing contusion and thrombosis of the popliteal artery.

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