Analysis of morbidity statistics in Government hospitals in Ceylon reveals that among the causes of morbidity, Pyrexias of Unknown Origin (P.U.O.) rank second only to the enteric diseases. The contribution of leptospirosis to the group of P.U.O. has not been evaluated. Awareness of this disease in Ceylon was created by Falisevac and Arumainayagam (1959). They wrote, " Since the climatic, geogra...

We performed laboratory and numerical modeling studies of an optical parametric oscillator with 90 degrees intracavity image rotation. We found that the signal beam was more symmetric than that from comparable cavities without image rotation, and it had low values of the beam quality factor, M(2) . Oscillator performance agreed well with our numerical model.

Some of the most compelling evidence supporting an association between cannabinoid agonists and psychosis comes from controlled laboratory studies in humans. Randomized, double-blind, placebo-controlled, crossover laboratory studies demonstrate that cannabinoid agonists, including phytocannabinoids and synthetic cannabinoids, produce a wide range of positive, negative, and cognitive symptoms an...

The worldwide use of precast concrete frames leads to an increase in the need for the investigation of efficient precast connections, particularly in the seismic regions. The current paper provides a numerical and experimental study on a dry precast connection. Experiments were conducted to validate the finite element method in the laboratory of the University of Science and Culture. To verify ...