Browsing by Author "Jayendra Kumar Singh"

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Design based study for adjusting non-response while estimating population mean
(Springer, 2024) Ajeet Kumar Singh; Ashutosh Ashutosh; Jayendra Kumar Singh
In the present study, we proposed a class of estimators for estimating a finite population mean in the presence of non-response to the study variable. We set out to investigate their properties under the polynomial regression model (PRM) modelling approach. Some of the special cases of the class were discussed separately to show how some non-response versions of the existing estimators can be generated and studied from the general class. The comparison of the model-based mean square errors of the estimators under different settings of the considered model was illustrated with the help of some empirical data. © The Author(s), under exclusive licence to Society for Reliability and Safety (SRESA) 2024.
Investigating the hypothesis role of the hidden poison microplastics in lymphoma development
(Springer Nature, 2025) Naveen Kumar; Ashok Kumar Pachar; Jayendra Kumar Singh; Mrinmoy Mandal; Mridul Lamba; Sonal Yadav; Neetu Sharda; Arbind Acharya
Microplastics, ranging from 1 micron to 5 mm in size, ubiquitous environmental pollutants, arise from diverse sources such as industrial processes, personal care products, textiles, and urban runoff, permeating air, soil, freshwater, sediment, and marine environments. Human exposure occurs through ingestion, inhalation, and dermal contact, leading to health concerns including oxidative stress, metabolic disruption, and immune modulation, with potential direct links to lung, skin, and digestive cancers. While direct evidence linking microplastics to lymphoma remains elusive, therefore we hypothesized that bloodstream's immediate exposure post-entry suggests a plausible indirect link. This review explores mechanisms around our hypothesis by which microplastics might contribute to lymphoma, encompassing inflammation, oxidative stress, immune dysregulation, endocrine disruption, and genotoxicity. Understanding these pathways is crucial given lymphoma's global impact. Future research warrants comprehensive epidemiological studies and interdisciplinary approaches, integrating epidemiology, experimental research, and computational modeling to elucidate the association between microplastics and lymphoma. © The Author(s) 2025.