PURPOSE The purpose of the study is to investigate the characteristics of a two-dimensional (2D) liquid-filled ion chamber detector array, which is used for the verification of radiotherapy treatment plans that use small field sizes of up to 10 × 10 cm. METHODS The device used in this study was Octavius 1000 SRS model (PTW, Freiburg, Germany). Its 2D array of detectors consists of 977 liquid-...

Volcano monitoring uses knowledge of volcanic processes and extensive data gathering to analyze areas of volcanic activity. The main goal is to learn the nature of the volcano, the magmatic processes occurring, and the likelihood of a future eruption. Volcano monitoring centers around three aspects of volcanic processes: ground deformation, seismic activity, and gas emissions. These techniques ...

Combining green fluorescent protein with a protein that only binds to double strand breaks in DNA allows these breaks-which are an important form of DNA damage-to be detected with high efficiency in living bacteria.

This research presents an analytical model that aims to pinpoint influential posts across a social web comprised of a corpus of posts. The model employs the Latent Dirichlet Allocation algorithm to associate posts with topics, and the TF-IDF metric to identify the key posts associated with each topic. The model was demonstrated in the domain of customer relationship by enabling careful monitori...

This study explores how the metal materials of the applicator influence the dose distribution when performing brachytherapy for cervical cancer. A pinpoint ionization chamber, Monte Carlo code MCNPX, and treatment planning system are used to evaluate the dose distribution for a single Ir-192 source positioned in the tandem and ovoid. For dose distribution in water with the presence of the tande...