Many new techniques for delivering radiation therapy are being developed for the treatment of cancer. One of these, proton therapy, is becoming increasingly popular because of the precise way in which protons deliver dose to the tumor volume. In order to achieve this level of precision, extensive treatment planning needs to be carried out to determine the optimum beam energies, energy spread (w...

"An ethical objection is raised against the Blackorby-Donaldson criterion of optimum population maximizing the sum total of utilities in excess of some critical level, since it may disprefer a social state with more people and with more worthwhile lives. However, the criterion may serve as a practicably reasonable compromise between maximizing total and average utility. Nevertheless, an alter...

OBJECTIVE The study was divided into two parts. The objective of the preliminary study was to evaluate the optimum dose and tolerance of 5-aminolaevulinic acid (5-ALA) compared to a placebo cream with a 633-nm LED light in normal, healthy, volunteer forearm skin. The second study was to establish if ALA-PDT treatments improve the signs of ageing. RESULTS Threshold photosensitization was obser...

Amrithadi Churnam - a compound ayurvedic preparation made up of Tinospora cordifolia, Salacia prenoides, Curcuma longa, Tribulus terrestris and Emblica Officinalis was screened for its antidiabetic activity. From the studies it could be established that Amrithadi churnam at a dose level of 100mg/kg b.w. was the optimum dose in alloxan diabetic rats. No toxic effects were observed as evidenced b...

The paper presents the results of mapping stray radiation fields in three different radiotherapy treatment rooms equipped with three different Co-60 machines. Based on the distribution of the ambient dose equivalent rate, the effective dose to the personnel under various scenarios has been assessed with regard to their movement and position in the room during the preparation of the machine and ...

Background: Prompt gamma neutron activation analysis (PGNAA) is known as a non-invasive technique capable of measuring elemental concentration in voluminous samples in a short period of time. Also it is a valuable diagnostic tool for total body elemental measurements. 252Cf and 241Am-Be sources which are usually used in this method, generate not only neutrons, but also emit high-energy and unwa...

Studies have been made on a possible protective action of cortin in the prevention of anaphylactic shock induced by crystallized egg albumin. Of sixteen control guinea pigs only two survived. Sixteen of thirty-three cortin-treated animals received hormone at the optimum period of from 2 to 6 hours before the shocking dose. Nine survived and two others showed some protection. In groups treated a...

CT1341 is a new intravenous anaesthetic which appears to have overcome the disadvantages of the earlier steroid. The formulation is a mixture of two closely related steroids with Cremophor EL and the optimum dose for induction is 50-60 (J/kg though much larger doses can be given without serious side effects. As the dose is increased the incidence of muscle movements, respiratory depression and ...

Kikuchi-Fujimoto disease (KFD) is a benign disease of unknown etiology characterized by lymphadenopathy and a fever. For the majority of patients with KFD, the course is self-limited; however, the optimum method of managing recurrent cases has not yet been established. We herein report a case of a 42-year-old Japanese woman with KFD (confirmed by a lymph node biopsy). Although high-dose prednis...