Assessing radioactive contaminants in Kathmandu soils: measurement and risk analysis.

Soil samples from vegetable farmland in densely populated wards of Nepal were analyzed for natural radionuclide levels, employing a NaI(Tl) 3" [Formula: see text] 3" gamma detector. The study aimed to evaluate the causes of radiation risk, attributing it to soil contamination resulting from the rapid urbanization and concretization that followed the earthquake in 2015. The activity concentration of radium-226, thorium-232, and potassium-40 and the ranges observed are 2.080±0.084-33.675±1.356 Bq kg[Formula: see text], 17.222±0.198-119.949±1.379 Bq kg[Formula: see text], and 11.203 ± 0.325-748.828±21.716 Bq kg[Formula: see text], respectively. The average values obtained for hazard indices are as follows: radium equivalent activity (82.779 Bq kg[Formula: see text]), absorbed dose rate (36.394 nGy h[Formula: see text]), annual effective dose equivalent (0.045 mSv yearr[Formula: see text]), gamma index (0.291), external hazard index (0.224), internal hazard index (0.253), excess lifetime cancer risk (0.159), annual gonadal dose equivalent (243.278 mSv year[Formula: see text]), alpha index (0.054), and activity utilization index (0.716). However, in most places, thorium-232 concentration is greater than those of the world average and recommended values. In specific locations such as Ward 4 in Baluwatar, the soil was found to have concentrations of Ra[Formula: see text] and K[Formula: see text] exceeding recommended limits. Despite this localized concern, the overall analysis of hazard indices across the studied areas revealed that most values were within permissible limits. This suggests that, on a broader scale, radiation exposure may not be a significant concern in the investigated regions. Nonetheless, the study recommends regular monitoring in additional locations to ensure a comprehensive and ongoing assessment of radiation levels.

Health seeking behavior and self-medication practice among undergraduate medical students of a teaching hospital: A cross-sectional study.

Introduction: Health seeking behavior is any activity undertaken by individuals who find themselves with a health-related problem with the aim of seeking an appropriate remedy. It includes decision making that is not homogenous among all as it is determined by different demographic factors. Self-medication and alternative medicine are also choices made by an individual that comes under health care seeking behavior. This study aimed to put light on the health seeking behavior of undergraduate medical students and to assess how they deal with their illnesses, including the practise of self-medication. Methods: In this web-based cross-sectional study, conducted among undergraduate medical students, a total of 210 students were selected through a systematic sampling method. The data were analyzed using SPSS version 20. Frequency was calculated for all the variables. The Mann-Whitney U or Kruskal-Wallis H test was used to see if any difference existed in the response. A significant association was declared at a p-value less than 0.05. Results: Response from 208 respondents was received and among those 88.9% of the respondents were aware of physical, mental and social aspects of health; about 40.8% of the respondents sought help only when their symptoms got worse; while 27.4% of them sought the help of alternative medicine. Around 74.2% of the respondents took medicines without a proper prescription and the commonly self-medicated drug group was NSAIDs. Conclusions: The knowledge of medical science has not satisfactorily ensured better health-seeking behavior and good practices. Also, there is high prevalence of self-medication practice among medical students.