Fibroin is normally composed of one H chain (350 kd) and one L chain (25 kd) which are connected by disulfide bond(s). However, the small amount of fibroin secreted into the lumen of the posterior silk gland of the Nd(2) (naked pupa) mutant does not contain L chain, although L chain mRNA is present and L chain is synthesized in the posterior silk gland cells of the mutant. In a hybrid silkworm,...

so production of silkworm from silkworm egg rapidly increasing. Success of sericulture as a cash crop depends on the vitality and disease freeness of the silkworm seed applied to farmer. Production of silkworm seed is not only free from diseases but having high heterosis. It is necessary to count silkworm egg accurately to avoid loss to silkworm egg production industry and farmers or grainges. ...

The previously unknown pupa of Heterostomus curvipalpis Bigot is described. The morphology of the pupa of Heterostomus is compared with the pupae of Xylophagomorpha, Tabanomorpha and Stratiomyomorpha families, based on five characters, and its phylogenetic position is discussed. Currently placed in Xylophagidae, we conclude that the pupa of Heterostomus shares most characters with the pupae of ...

This paper presents the design and implementation of an e cient communication system, Pupa, developed speci cally for supporting parallel computing on networks of workstations (NOW) architecture. The emphasis of Pupa is on both performance and service functionality. Pupa provides a signi cantly lower latency communication support compared to TCP/IP and is as powerful as the latter as an underly...

Pupa is a low-latency communication system that provides the same quality of message delivery as TCP but is designed speci cally for a parallel computing cluster connected by a 100 Mbits/sec Fast Ethernet. The implementation has been operational for over a year, and several systems have been built on top of Pupa, including a compiler-directed distributed shared virtual memory system, Locust , a...