In rats, synaptic terminations of the medial habenular (MH) afferents to the interpeduncular nucleus (IPN) are just beginning to form at the time of birth. The alterations in synaptogenesis resulting from unilateral MH lesions placed in neonatal rats were demonstrated with the autoradiographic and degeneration methods after the operated animals had reached maturity. The distribution of S synaps...

Acetylcholine is an important neurotransmitter, and the habenulo-interpeduncular projection is a major cholinergic pathway in the brain. To study the physiological properties of cholinergic transmission in the interpeduncular nucleus (IPN), we used a transgenic mouse line in which the light-gated cation channel ChannelRhodopsin-2 is selectively expressed in cholinergic neurons. Cholinergic axon...

interpenetrating polymer networks (ipn) were formed involving hydrophobic polybutyl acrylate (pba) and hydrophilic poly hydroxyethyl acrylate (phea). pba prepolymer was first formed in presence of ferric oxide nanoparticles (

InterPlaNetary (IPN) Internet links have extremely long propagation delays and very high link error rates. In such networks, lost retransmissions of the TCP data segments are common. Existing TCP schemes can detect lost retransmissions only through TCP retransmission timeout and hence are inefficient in such scenarios. In this paper we propse a new algorithm for handling such lost retransmissio...

para -∞ < x < ∞, la cual se denomina función normal estándar. La cuarta derivada de la función normal estándar es continua en cualquier intervalo [a,b] en los números reales. Esto se debe básicamente a que la cuarta derivada L M. en C. Víctor Manuel Silva García, M. en C. Eduardo Vega Alvarado, Profesores del CIDETEC-IPN Ing. Salvador Pérez Cárdenas, Ing. Miguel Ángel Jiménez Cruz. Profesores d...

1Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del IPN, 07000 México, DF, Mexico 2Facultad de Medicina Veterinaria y Zootecnia, UNAM, 04510 México, DF, Mexico 3Facultad de Ciencias Quı́micas, Universidad Autónoma Benito Juárez de Oaxaca, 68120 Oaxaca, Mexico 4Unidad Monterrey, Centro de Investigación y Estudios Avanzados del IPN, 66600 Monterrey, Mexico 5...

A method for recognizing syntactic patterns for Spanish is presented. This method is based on dependency parsing using heuristic rules to infer dependency relationships between words, and word co-occurrence statistics (learnt in an unsupervised manner) to resolve ambiguities such as prepositional phrase attachment. If a complete parse cannot be produced, a partial structure is built with some (...

Recently, an efficient method for obtaining reduced interpreted Petri net, IPN, diagnoser was previously proposed for discrete event systems. This diagnoser consists of a single place and the same number of transitions that the system model has. Although, the current marking of this place (diagnoser) is enough to determine and locate faults occurring in a simple diagnosable discrete event syste...