No abstract available

No abstract available

[en] In this paper have been considered the effects of the radiation exposure on seeds of the rice sorts of P-15, OCh-6 and PB-3 and young rice plants grown for 50 days. When rice seeds are exposed in the intensity of 0.05Gy/s of 8-20Gy dose, the growth force of the plants can be raised to 113-150%. The growth force of young rice-plants can be raised to 112-118% when they are exposed in the intensity of 0.01Gy/s of 5-8Gy dose. (Author)

[en] In this paper have been considered the influence of the dose intensity in the radiation exposure on the seeds of the soybean sorts of PL-O and K-8. The growth force of the plants increases from 103% to 114% when dose intensity is changed from 0.01Gy/s to 0.10Gy/s in the irradiation dose, whereas it lowers from 97% to 60% in the repression dose. At the critical dose the growth force of the plants according to the dose intensity rapidly lowers and most plants die within 15 days after sowing in the dose intensity of 0.10Gy/s. (Author)

[en] Short communication

[en] Short communication

[en] The case is described of a patient who developed acute pericarditis after radiotherapy for an anaplastic bronchial carcinoma. It was, however, curious that only a small part of the pericardium had been in the direct field of radiation, and that the pericarditis had developed so soon after the radiotherapy. It is postulated that pre-treatment with cytostatic agents had potentiated the effect of the radiotherapy. (Auth.)

[en] Short communication

[en] Short communication

[en] Purpose: To assess sustained attention, impulsivity, and reaction time during radiotherapy (RT) for pediatric patients with localized primary brain tumors. Methods and Materials: Thirty-nine patients (median age 12.3 years, range 5.9-22.9) with primary brain tumors were evaluated prospectively using the computerized Conners' continuous performance test (CPT) before and during conformal RT (CRT). The data were modeled to assess the longitudinal changes in the CPT scores and the effects of clinical variables on these changes during the first 50 days after the initiation of CRT. Results: The CPT scores exhibited an increasing trend for errors of omission (inattentiveness), decreasing trend for errors of commission (impulsivity), and slower reaction times. However, none of the changes were statistically significant. The overall index, which is an algorithm-based weighted sum of the CPT scores, remained within the range of normal throughout treatment. Older patients (age >12 years) were more attentive (p<0.0005), less impulsive (p<0.07), and had faster reaction times (p<0.001) at baseline than the younger patients. The reaction time was significantly reduced during treatment for the older patients and lengthened significantly for the younger patients (p<0.04). Patients with a shunted hydrocephalus (p<0.02), seizure history (p<0.0006), and residual tumor (p<0.02) were significantly more impulsive. Nonshunted patients (p<0.0001), those with more extensive resection (p<0.0001), and patients with ependymoma (p<0.006) had slower initial reaction times. Conclusion: Children with brain tumors have problems with sustained attention and reaction time resulting from the tumor and therapeutic interventions before RT. The reaction time slowed during treatment for patients <12 years old. RT, as administered in the trial from which these data were derived, has limited acute effects on changes in the CPT scores measuring attention, impulsiveness, and reaction time