INTRODUCTION Most research on radioresistant fungi, particularly on human pathogens such as Cryptococcus neoformans, involves sparsely-ionizing radiation. Consequently, fungal responses to densely-ionizing radiation, which can be harnessed to treat life-threatening fungal infections, remain incompletely understood. METHODS We addressed this issue by quantifying and comparing the effects of de...

Ionizing radiations are in frequent clinical use for diagnosis and treatment and the fact is that 50% of the patients visiting Cancer Treatment Centers for cancer therapy receive radiotherapy either alone or in conjunction with chemotherapy [1,2]. The radiotherapy and chemotherapy both kills tumor cells by inflicting damage to cellular DNA and it is also known that the underlying cause of cance...

Ionizing radiations are in frequent clinical use for diagnosis and treatment and the fact is that 50% of the patients visiting Cancer Treatment Centers for cancer therapy receive radiotherapy either alone or in conjunction with chemotherapy [1,2]. The radiotherapy and chemotherapy both kills tumor cells by inflicting damage to cellular DNA and it is also known that the underlying cause of cance...

The application of ionizing radiations in different fields requires the use of equipment capable of detecting their presence or quantifying them. Detectors of the most different shapes, composition and characteristics are required to cover the full range of application of ionizing radiations. At present, thermoluminescent detectors (TLD) are the most widely employed for individual gamma monitor...

Ionizing radiations are in frequent clinical use for diagnosis and treatment and the fact is that 50% of the patients visiting Cancer Treatment Centers for cancer therapy receive radiotherapy either alone or in conjunction with chemotherapy [1,2]. The radiotherapy and chemotherapy both kills tumor cells by inflicting damage to cellular DNA and it is also known that the underlying cause of cance...

background: the fatal effect of ionizing radiation on cells depends on linear energy transfer (let) level. the distribution of ionizing radiation is sparse and homogeneous for low let radiations such as x or γ, but it is dense and concentrated for high let radiation such as heavy-ions radiation. material and methods: chinese hamster ovary cells (cho-k1) were exposed to 4 gy fe-ion 2000 kev/m. ...

Exposure to the types of ionizing radiation encountered during space travel may cause a number of health-related problems, but the primary concern is related to the increased risk of cancer induction in astronauts. The major types of radiation considered to be of importance during space travel are protons and particles of high atomic number and high energy (HZE particles). It is now clear that ...

Selected physical and biological data bearing upon the environmental variations created by nuclear explosions are presented in simplified form. Emphasis is placed upon the "early" con sequences of exposure to blast, thermal radiation, and ionizing radiation to elucidate the com parative ranges of the major effects as they vary with explosive yield and as they contribute to the total hazard to m...