The usual chi-squared testing procedure to test independence between variables in two-way contingency tables assumes that the observations are independent or come from simple random sampling. This assumption is invalid for ...

In order to establish the biological importance of hydroxamic acids derivatives the acid dissociation constants (ionization constants) were determined by potentiometric and spectroscopic methods. The possible correlation ...

The sound of thunder has long been of interest to acousticians and atmospheric scientists. In this study it was attempted to contribute to the available knowledge of thunder by studying the audio frequency pressure ...

Antifungal activity of chitosan extracted from head and shell waste of locally available prawn was tested against the anthracnose disease causing organism, Colletotrichum gloeosporioides of papaya variety Rathna. One ...

The melt spinning process for artificial fibers has been studied by many research groups throughout the world during the last four decades. However, all these works considered the forward problem of simulating the process ...

Diversity of insects in Sri Lanka is very poorly documented and continues to remain so due to the very small numbers of entomologists specializing in taxonomy and ecology in the country. This situation is highlighted by ...

During the Northeast monsoon (NEM) in Sri Lanka thunderstorm activities are concentrated to the southwest comer of the island. The lightning data measured by Lightning Locating Project (LLP) in February 1999 and by ...

Rice (Oryza sativa L.) is the second most important cereal crop in the world but its production suffers from saline environments in many areas since it is one of the most salt sensitive crops. However, the large variation ...

Corynespora cassiicola (Berk and Curt.) Wei., causes target spots mainly on leaves, stems, roots and flowers of more than 500 host plants covering tropical, sub-tropical and temperate countries and Corynespora leaf fall ...