Department of Radiation Effects, Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, Braunschweig, Germany.
Published: May 2019
AI Article Synopsis
Article Abstract
In recent years, several approaches have been proposed to provide an understanding of the enhanced relative biological effectiveness of ion beams based on multi-scale models of their radiation effects. Among these, the BioQuaRT project was the only one which focused on developing metrology for a multi-scale characterization of particle track structure. The progress made within the BioQuaRT project has motivated the formation of a department 'Radiation Effects' at PTB dedicated to metrological research on ionizing radiation effects. This paper gives an overview of the department's present research directions and shortly discusses ideas for the future development of metrology related to biological effects of ion beams that are based on a stakeholder consultation.
Due to the increase in data rate in mobile communication and the widespread use of mobile internet, electromagnetic communication systems are increasing daily. This situation causes increases in the use of more mobile communication devices and environmental non-ionizing Electromagnetic Field (EMF) levels. The rise of bee deaths and colony losses in beekeeping parallel to the increase of the EMF sources cause the concept of "electromagnetic pollution" to be considered among the reasons.
State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin, 300353, P. R. China.
Burn injuries often cause prolonged oxidative stress and inflammatory pain due to an initial increase in inflammatory responses, consequently exacerbating depressive disorders and severely impairing patients' quality of life. The primary function of traditional burn dressings is to prevent infection and facilitate tissue repair. However, these dressings are not intended for the inflammatory pain and depression that often occur during recovery.
Background: Chemotherapy-induced mucositis (CIM) significantly impacts quality of life and reduces survival in patients treated with specific chemotherapeutic agents. However, effective clinical treatments for CIM remain limited. Intravenous immunoglobulin (IVIg), a therapeutic derived from pooled human plasma, is widely used to treat inflammatory diseases.
Purpose: To present an innovative deformable applicator that used Freiburg flap as vaginal applicator with or without free-hand interstitial needles in three-dimensional (3D) high-dose-rate (HDR) brachytherapy for vaginal stump recurrence of cervical cancer.
Material And Methods: Between September 2017 and January 2020, all patients with vaginal stump recurrence after radical hysterectomy of cervical cancer treated with vaginal stump brachytherapy using Freiburg flap as vaginal applicator with or without free-hand interstitial needles were retrospective analyzed. Characteristics related to patients and treatment modality as well as preliminary outcomes and side effects were investigated.
Purpose: To investigate sensitivity of contributing factors to heterogeneity corrections in ocular brachytherapy using iodine-125 (I) Collaborative Ocular Melanoma Study (COMS) plaques.
Material And Methods: Using egs_brachy, Monte Carlo (MC) simulations were performed for I COMS plaques (model: IsoAid IAI-125A). Homogeneous dose (D) was estimated under the American Association of Physicists in Medicine Task Group-43 assumptions, with 85 Gy prescribed to a 5 mm depth.
