ABSTRACT
A high-power active microwave pulse compressor is described that operates by modulating the quality factor of an energy storage cavity by means of mode conversion controlled by a triggered electron-beam discharge across a switch cavity. This Letter describes the principle of operation, the design of the switch cavity, the configuration used for the tests, and the experimental results. The pulse compressor produced output pulses with 140-165 MW peak power, record peak power gains of 16â¶1-20â¶1, and FWHM pulse duration of 16-20 ns at a frequency of 11.43 GHz.
ABSTRACT
Results of treatment of 433 patients with stage IIIb breast cancer were analysed. Large-fraction radiation treatment and combination chemotherapy followed by surgery proved superior to standard fraction irradiation plus surgery for the initial treatment of stage IIIb breast cancer.
Subject(s)
Breast Neoplasms/therapy , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Breast/pathology , Breast Neoplasms/pathology , Breast Neoplasms/radiotherapy , Combined Modality Therapy , Female , Humans , Lymphatic Metastasis , Mastectomy , Neoplasm Recurrence, Local , Radiotherapy DosageABSTRACT
Two rapid and simple methods for isolating DNA from certain species of vertebrates are approbated. The both methods exclude the stage of centrifugation in the gradient of cesium chloride. The isolated DNA is hydrolyzed specifically by restricted endonucleases. Applicability of the mentioned methods is shown.
