The development of microdosimeters and particle telescopes is important for risk assessment in space and aviation applications. The charge collection properties of a monolithic particle telescope, suitable for both microdosimetry and fluence based approaches, were studied using an ion microprobe.

The GEMPix is a small gaseous detector with highly pixelated readout, consisting of drift region, three Gas Electron Multipliers (GEMs) for signal amplification, and four Timepix ASICs 55 µm pixel pitch total 262,144 pixels. A continuous flow gas mixture such as Ar:CO2:CF4, Ar:CO2 or propane-based tissue equivalent supplied externally at rate 5 L/h. This article reviews the medical applications...

Over the past two decades, management of newly diagnosed glioblastoma has undergone significant evolution. While surgery has long been a mainstay of management for this disease, and while radiotherapy has a proven survival role, initial efforts at radiotherapy dose escalation, use of radiosurgery, brachytherapy, and altered fractionation did not improve patient survival. Recently, multiple moda...

production and approval of trastuzumab (herceptin®) for the treatment of metastatic breast cancer (mbc) was a millstone in antibody-based targeted therapy in the cancer treatment. however, despite the early success in the clinical trials, trastuzumab failed to appreciate the initial attraction due to development of resistance to the drug. the majority of patients who benefit from the drug acqui...

background: in this study, the bystander effect of radiation was evaluated on the regulation of cox-2, inos, and 8-ohdg in the lung tissues of sprague-dawley rats with and without pre-administration of melatonin. materials and methods: a 2×2 cm area of the pelvis of male sprague-dawley rats with and without pre-administration of melatonin (100 mg/kg) by oral and ip injection was irradiated with...

Signaling through the insulin-like growth factor-I receptor (IGF-IR) is implicated in cellular proliferation, apoptosis, carcinogenesis, metastasis, and resistance to cytotoxic cancer therapies. Targeted disruption of IGF-IR signaling combined with cytotoxic therapy may therefore yield improved anticancer efficacy over conventional treatments alone. In this study, a fully human anti–IGF-IR mono...

Tremendous technological advancements in prostate radiotherapy have decreased treatment toxicity and improved clinical outcomes for men with prostate cancer. While these advances have allowed for significant treatment volume reduction and whole-organ dose escalation, further improvement in prostate radiotherapy has been limited by classic techniques for diagnosis and risk stratification. Develo...

Radio-activated gene therapy has been developed as a novel therapeutic strategy against cancer; however, expression of therapeutic gene in peritumoral tissues will result in unacceptable toxicity to normal cells. To restrict gene expression in targeted tumor mass, we used hypoxia and radiation tolerance features of tumor cells to develop a synthetic AND gate genetic circuit through connecting r...

Cancer is one of the leading cause of death worldwide.1 In 2010, a total of 1,529,560 new cancer cases and 569,490 cancer deaths were estimated in the United States alone.1 Despite advances in our understanding of tumor biology, cancer biomarkers, surgical procedures, radioand chemotherapy, the overall survival rate from cancer has not improved significantly in the past two decades. Early detec...