A multibranched hierarchy of regulatory genes controls all aspects of somatic sexual development ... more A multibranched hierarchy of regulatory genes controls all aspects of somatic sexual development in Drosophila melanogaster. One branch of this hierarchy is headed by the fruitless (fru) gene and functions in the central nervous system, where it is necessary for male courtship behavior as well as the differentiation of a male-specific abdominal structure, the muscle of Lawrence (MOL). A preliminary investigation of several of the mutations described here showed that the fru gene also has a sex-nonspecific vital function. The fru gene produces a complex set of transcripts through the use of four promoters and alternative splicing. Only the primary transcripts produced from the most distal (P1) promoter are sex-specifically spliced under direction of the sex-determination hierarchy. We have analyzed eight new fru mutations, created by X-ray mutagenesis and P-element excision, to try to gain insight into the relationship of specific transcript classes to specific fru functions. Males t...
In most of the communication protocol specification documents, there is little, if any, use of mo... more In most of the communication protocol specification documents, there is little, if any, use of more formal techniques for specifying the protocols, such as state and service primitive tables. Thus, these documents are sometimes ambiguous, difficult to understand, and imprecise. The IEEE 802.16 standard document is responsible for specifying and describing the air interface of the BWA systems (Broadband Wireless Access Systems) point to multipoint fixed and mobile networks, and is limited to the description of the MAC(Medium Access Control) layer and physical (PHY). Since the MAC layer is connection-oriented, the standard defines how the connection management service is provided. The service is specified as the occurrence of a set of well-defined service primitives. However, the description of the service specification is somehow informal and presents some ambiguities and inconsistences. So in this paper, we describe the omissions, uncertainties and discrepancies found in the standar...
Ana V. Morales, Maria E. Villapol. "Una Revision Formal a la Especificacion del Servicio par... more Ana V. Morales, Maria E. Villapol. "Una Revision Formal a la Especificacion del Servicio para la Gestion de las Conexiones en la Capa MAC IEEE 802.16". Memorias del II Simposio Cientifico y Tecnologico en Computacion (SCTC 2012). O. Rodriguez, E. Coto (Eds.), pp. 59-66. Caracas, Venezuela. 2012.
A multibranched hierarchy of regulatory genes controls all aspects of somatic sexual development ... more A multibranched hierarchy of regulatory genes controls all aspects of somatic sexual development in Drosophila melanogaster. One branch of this hierarchy is headed by the fruitless (fru) gene and functions in the central nervous system, where it is necessary for male courtship behavior as well as the differentiation of a male-specific abdominal structure, the muscle of Lawrence (MOL). A preliminary investigation of several of the mutations described here showed that the fru gene also has a sex-nonspecific vital function. The fru gene produces a complex set of transcripts through the use of four promoters and alternative splicing. Only the primary transcripts produced from the most distal (P1) promoter are sex-specifically spliced under direction of the sex-determination hierarchy. We have analyzed eight new fru mutations, created by X-ray mutagenesis and P-element excision, to try to gain insight into the relationship of specific transcript classes to specific fru functions. Males t...
In most of the communication protocol specification documents, there is little, if any, use of mo... more In most of the communication protocol specification documents, there is little, if any, use of more formal techniques for specifying the protocols, such as state and service primitive tables. Thus, these documents are sometimes ambiguous, difficult to understand, and imprecise. The IEEE 802.16 standard document is responsible for specifying and describing the air interface of the BWA systems (Broadband Wireless Access Systems) point to multipoint fixed and mobile networks, and is limited to the description of the MAC(Medium Access Control) layer and physical (PHY). Since the MAC layer is connection-oriented, the standard defines how the connection management service is provided. The service is specified as the occurrence of a set of well-defined service primitives. However, the description of the service specification is somehow informal and presents some ambiguities and inconsistences. So in this paper, we describe the omissions, uncertainties and discrepancies found in the standar...
Ana V. Morales, Maria E. Villapol. "Una Revision Formal a la Especificacion del Servicio par... more Ana V. Morales, Maria E. Villapol. "Una Revision Formal a la Especificacion del Servicio para la Gestion de las Conexiones en la Capa MAC IEEE 802.16". Memorias del II Simposio Cientifico y Tecnologico en Computacion (SCTC 2012). O. Rodriguez, E. Coto (Eds.), pp. 59-66. Caracas, Venezuela. 2012.
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