It is found that the surfactants play multifold Selleck GSK1120212 roles in the process. (C) 2011 American Institute of Physics. [doi:10.1063/1.3561157]“
“Purpose: To evaluate putative effects on tumour susceptibility in mice exposed to a UMTS (universal mobile telecommunications system) test signal for up to 24 months, commencing with embryo-fetal exposure.
Material and methods: Animals were exposed to UMTS
fields with intensities of 0, 4.8, and 48 W/m(2), the low-dose group (4.8 W/m(2)) was subjected to additional prenatal ethylnitrosourea treatment (40 mg ENU/kg body weight).
Results: The high-level UMTS exposure (48 W/m(2)), the sham exposure, and the cage control groups showed comparable tumour
incidences in the protocol organs. In contrast, the ENU-treated group UMTS-exposed at 4.8 W/m(2) displayed an enhanced lung tumour rate and an increased incidence of lung carcinomas as compared to the controls treated with ENU only. Furthermore, tumour multiplicity of the lung carcinomas was increased and the number of metastasising lung tumours was doubled in the ENU/UMTS group as compared to the ENU control group.
Conclusion: This pilot study indicates a cocarcinogenic effect of lifelong UMTS exposure (4.8 W/m(2)) in female B6C3F1 descendants subjected to pretreatment with ethylnitrosourea.”
“We report the results of a systematic study on stress tunable absorption of glass-coated amorphous Co68.7Fe4Ni1B13Si11Mo2.3 microwires and their composites. The magnetic microwires possess good stress-impedance properties Selleck URMC-099 and yield a stress dependence of absorption at gigahertz frequencies. The stress compensates the reverse effect of magnetic field on absorption. There exist strong stress dependences of the effective permittivity and transmission parameters. Composite failure due to the wire damage results in a dramatic change of the sign and magnitude of effective permittivity. The double peak is identified in the stress
dependence of field tunability, in contrast to the single peak this website for the magnetic field tunability. All these results indicate that the present composites are very promising for detecting the ambient stress levels and interrogating the structural integrity. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3535553]“
“Purpose: To study whether ipsilateral breast tumour recurrence (IBTR) dynamics are modified by post-operative radiotherapy (RT).
Methods and materials: The hazard rate for IBTR was analysed in a database from patients undergoing breast conserving surgery with or without post-operative radiotherapy within randomised clinical trials from the Milan Cancer Institute.
Results: The hazard rate for IBTR presents a bimodal pattern. Post-operative radiotherapy, in addition to reducing IBTR incidence from 24.5% to 5.