Artificial Neural Nets with Interaction of Afferents

The aim is to obtain computationally more powerful, neuro physiologically founded, artificial neurons and neural nets. Artificial Neural Nets (ANN) of the Perceptron type evolved from the original proposal by McCulloch an Pitts classical paper [1]. Essentially, they keep the computing structure of a linear machine followed by a non linear operation. The McCulloch-Pitts formal neuron (which was never considered by the author’s to be models of real neurons) consists of the simplest case of a linear computation of the inputs followed by a threshold. Networks of one layer cannot compute anylogical function of the inputs, but only those which are linearly separable. Thus, the simple exclusive OR (contrast detector) function of two inputs requires two layers of formal neurons

A new class of symbolic abstract neural nets

Starting from the way the inter-cellular communication takes place by means of protein channels and also from the standard knowledge about neuron functioning, we propose a computing model called a tissue P system, which processes symbols in a multiset rewriting sense, in a net of cells similar to a neural net. Each cell has a finite state memory, processes multisets of symbol-impulses, and can send impulses (?excitations?) to the neighboring cells. Such cell nets are shown to be rather powerful: they can simulate a Turing machine even when using a small number of cells, each of them having a small number of states. Moreover, in the case when each cell works in the maximal manner and it can excite all the cells to which it can send impulses, then one can easily solve the Hamiltonian Path Problem in linear time. A new characterization of the Parikh images of ET0L languages are also obtained in this framework.

Fratris Petri de Aragon, Ordinis Eremitarum Sancti Augustini, ... In Secundam Secundæ Diui Thomæ Doctoris Angelici commentariorum, tomus primus ...

Colofón en 3F7v

Fratris Petri de Aragon, Ordinis Eremitarum Sancti Augustini, ... In Secundam Secundæ Diui Thomæ Doctoris Angelici commentariorum, tomus primus ...

Colofón en 3F7v

Authoritatum sacrae Scripturae et sanctorum patrum, quae in catechismo Doctoris Petri Canisij Theologi Societatis Iesu citantur ... : pars tertia, De priori iustitiae christianae parte, quæ in fugiendis vitijs sita est : siue De peccatis ... / [Petrus Busaeus ...]

Mención de responsabilidad tomada del prefacio

Authoritatum sacrae Scripturae et sanctorum patrum, quae in catechismo Doctoris Petri Canisij Theologi Societatis Iesu citantur ... : pars tertia, De priori iustitiae christianae parte, quæ in fugiendis vitijs sita est : siue De peccatis ... / [Petrus Busaeus ...]

Mención de responsabilidad tomada del prefacio

Authoritatum Sacrae Scripturae et Sanctorum Patrum, quae in Catechismo D. Petri Canisij ... citantur, & nunc primùm ex ipsis fontibus fideliter collectae... ; pars secunda : De sacramentis Ecclesiae...

Enc. Piel con hierros

Authoritatum sacrae Scripturae et sanctorum patrum, quae in catechismo D. Petri Canisij Theologi Societatis Iesu citantur ... : pars secunda De sacramentis ecclesiae ...

Sign.: a-z4, 2a-2z4, 3a-3z4, 4a-4b4

Scholastica historia / Magistri Petri comestoris sacre scripture serie[m] breue[m] nimis [et] expositam exponentis.

Capitulares miniadas en rojo y azul

Diminished UV-absorbing nets reduce the Spreads and population density of Macrosiphum euphorbiae in lettuce.

UV-absorbing covers reduce the incidence of injurious insect pests and viruses in protected crops. In the present study, the effect of a UV-absorbing net (Bionet) on the spatio-temporal dynamics of the potato aphid on lettuce plants was evaluated. A field experiment was conducted during three seasons in two identical tunnels divided in four plots. A set of lettuce plants were artificially infested with Macrosiphum euphorbiae adults and the population was estimated by counting aphids on every plant over 7 to 9 weeks. Insect population grew exponentially but a significantly lower aphid density was present on plants grown under the UV-absorbing cover compared to a standard 50 mesh net. Similarly, in laboratory conditions, life table parameters were significantly reduced under the Bionet. Moreover, SADIE analysis showed that the spatial distribution of aphids was effectively limited under the UV-absorbing nets. Our results indicate that UV-absorbing nets should be considered as an important component of lettuce indoor cropping systems preventing pesticide applications and reducing the risk of spread of aphid-borne virus diseases.

Dispersal of aphids, whiteflies and their natural enemies under photoselective nets

Integrated Pest Management of insects includes several control tactics, such as the use of photoselective nets, which may reduce the flight activity of insects. Limiting the dispersal of pests such as aphids and whiteflies is important because of their major role as vectors of plant viruses, while a minor impact on natural enemies is desired. In this study, we examined for the first time the dispersal ability of three vector species, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), Macrosiphum euphorbiae (Thomas) (Hemiptera: Aphididae) and Myzus persicae (Sulzer) (Hemiptera: Aphididae), in cages covered with photoselective nets. Contrary to the results obtained with aphids, the ability of the whitefly B. tabaci, to reach the target plant was reduced by photoselective nets. In a second set of experiments, the impact of UV-absorbing nets on the visual cues of two important predator species, Orius laevigatus (Fieber) (Hemiptera: Anthocoridae) and Amblyseius swirskii Athias-Henriot (Acari: Phytoseiidae), was evaluated. The anthocorid was caught in higher numbers in traps placed under regular nets, whereas the mites preferably chose environments in which the UV radiation was attenuated. We have observed a wide range of effects that impedes generalization, although photoselective nets have a positive effect on pest management of whiteflies and aphids under protected environments.

Summule / versoris super textu Petri hispani.

[cum]6r: Preclarissimi philosophi magistri Ioha[n]nis versoris Parisiensis doctoris su[m]mularu[m] expositio vna cu[m] textu magistri Petri hyspani suis in locis particulatim inserto finit

Segmenta ex Epistolis Pauli, Petri, Iacobi, et Ioannis : necnon ex prophetis quæ in re diuina leguntur per anni circulu[m], tam in diebus Dominicis, q[uam] in sanctoru[m] festis & profestis / quibus Antonius Nebrissensis adiecit grammatica qu[a]edam scho

Imp. y fecha tomados de colofón