In the 1960s Letha Karunakaran studied chironomid fauna of Singapore but faced a lack sufficiently detailed descriptions to enable identification her material with any certainty. She recognized seven species Chironomus (s.s) sent me fixed larval only four these which she tentatively identified as C. apicatus Johannsen 1932, costatus javanus Kieffer 1924, and stupidus 1932. larvae for confirmati...

Potassium is the dominant cation of the cell, but in the body fluids sodium dominates. This remarkable fact has been the stimulus to many investigations of normal and malignant tissues.'4 Analysis of tumor tissue has shown, in general, an increase in potassium which is roughly proportional to the rate of growth." 2,18 Roffo"2 states that the potassium content of rat tumor was about the same as ...

The two classes of light chains in vertebrate fast muscle myosin have been selectively labeled with the thiol specific reagent 5-(iodoacetamido) fluorescein to determine their location in the myosin head. The alkali light chains (A1 and A2) were labeled at a single cysteine residue near the COOH terminus, whereas the regulatory light chain (LC2) was reacted at either cysteine 125 or 154. The tw...

Preface Translingual information management that can choose appropriate information and obtain useful knowledge from the ood of global information is being increasingly demanded. Among the related technologies, natural language processing is one of the most promising for meeting information needs because natural language processing can deal with documents that have essential roles in informatio...

In most freshwater ecosystems, aquatic insects are dominant in terms of diversity; however, there is a disproportionately low number of records of alien species when compared to other freshwater organisms. The Chironomidae is one aquatic insect family that includes some examples of alien species around the world. During a study on aquatic insects in Amazonas state (Brazil), we collected specime...