To Investigate the Involvement of Mast Cells in the Pathogenesis of Oral Lichen Planus and Oral Lichenoid Reactions.

Aim: Role of mast cells in the development of oral lichen planus (OLP) and oral lichenoid reactions (OLR).

Material And Methods: The tissue slices used in this investigation were obtained from the archives of the Department of Oral Pathology and were formalin-fixed and embedded in paraffin. The sections were obtained from 40 cases of OLP that were identified by histological examination, as well as 40 cases of OLR.

Assessment of Expression of Mast Cells Density in Oral Premalignant and Malignant Lesions by Histochemical Analysis.

Aim: Assessment of mast cells density expression in oral premalignant and malignant lesions by histochemical analysis.

Materials And Methods: The study used a total of 120 tissue blocks that were formalin-fixed and paraffin-embedded. These blocks consisted of 40 cases of oral squamous cell carcinoma (OSCC), 40 cases of oral epithelial dysplasia, and 40 cases of normal oral mucosa (NOM).

Sub-regional variation in atmospheric and land variables regulates tea yield in the Dooars region of West Bengal, India.

Climatic variables can have localized variations within a region and these localized climate patterns can have significant effect on production of climate-sensitive crops such as tea. Even though tea cultivation and industries significantly contribute to employment generation and foreign earnings of several South Asian nations including India, sub-regional differences in the effects of climatic and soil variables on tea yield have remained unexplored since past studies focused on a tea-producing region as a whole and did not account for local agro-climatic conditions. Here, using a garden-level panel dataset based on tea gardens of Dooars region, a prominent tea-producing region in India, we explored how sub-regional variations in climatic and land variables might differently affect tea yield within a tea-producing region.

The Psychological Science Accelerator's COVID-19 rapid-response dataset.

In response to the COVID-19 pandemic, the Psychological Science Accelerator coordinated three large-scale psychological studies to examine the effects of loss-gain framing, cognitive reappraisals, and autonomy framing manipulations on behavioral intentions and affective measures. The data collected (April to October 2020) included specific measures for each experimental study, a general questionnaire examining health prevention behaviors and COVID-19 experience, geographical and cultural context characterization, and demographic information for each participant. Each participant started the study with the same general questions and then was randomized to complete either one longer experiment or two shorter experiments.