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La causalidad en el pensamiento de Jean Piaget.

Plantearse el problema de la causalidad dentro del pensamiento de Jean Piaget elaborando los conceptos fundamentales para entender el conocimiento, realizando el estudio genético de estos conceptos y por tanto del conocimiento. La causalidad en el pensamiento de Jean Piaget. Se analizan una serie de conceptos fundamentales, en la teoría de Piaget: equilibrio, regulación, adaptación como equilibrio, interaccionismo orgánico e interaccionismo cognoscitivo, relaciones sujeto objeto, la objetividad. Dentro del conocimiento del mundo físico se trata la génesis de la causalidad en el niño, la percepción de la causalidad, la causalidad operatoria. Se utilizan como fuentes fundamentales de información las obras de Piaget, algunas de las cuales se citan en la bibliografía. Análisis teórico de las tesis de Piaget acerca de la causalidad. Se realiza el análisis de forma concéntrica, de manera que los capítulos sucesivos se vayan incluyendo los unos a los otros, tomando como modelo el propio proceso de las estructuras cognitivas tal y como lo plantea Piaget. La explicación causal constitutiva del conocimiento físico consiste según Piaget, en la atribución de estructuras operatorias a los objetos. Lo que avala el conocimiento de los objetos es la vinculación del término de la génesis (estructuras operatorias) con su origen o punto de partida (las acciones).

Chemical characterization and acaricide potential of essential oil from aerial parts of Tagetes patula L. (Asteraceae) against engorged adult females of Rhipicephalus sanguineus (Latreille, 1806)

Rhipicephalus sanguineus, commonly known as the brown dog tick, is one of the most widely distributed species of tick. In dogs, it can cause anemia and provide the transmission of pathogenic microorganisms such as Babesia canis, Ehrlichia canis, Hepatozoon canis, Anaplasma platys, and Mycoplasma haemocanis. To man, it can transmit the intracellular parasites Rickettsia rickettsii and Rickettsia conorii, the causative agents of the Rocky Mountain spotted fever in the Americas and Mediterranean and spotted fever in Europe and North Africa. Its control is performed by applying synthetic formulations composed of pyrethroids; however, continued use of these products results in environmental damage and acquisition of resistance. Alternatively, studies with botanical insecticides have been increasingly recurrent. Therefore, this study aimed to test the efficacy of essential oil of Tagetes patula, a ruderal species widely described in the literature for its insecticidal properties, in engorged females of R. sanguineus by the adults immersion test (AIT) and impregnated paper disk test (IPDT). The essential oil used, through gas chromatography coupled to mass spectrometry, revealed the presence of 55 compounds, being the 4-vinyl guaiacol and gamma terpinene the majority ones. The AIT compared to the IPDT was more efficient in inhibiting oviposition of tick; however, the eggs laid by the females submitted to saturated atmosphere with essential oil, from IPDT, not hatched, interrupted their development cycle. Besides being a pioneer work, the results presented here contributes to new researches, aiming the incorporation of essential oil in an acaricide for use in the environment. © 2013 Springer-Verlag Berlin Heidelberg.

Diary of Elias Mann, 1796-1800

Elias Mann kept this diary during his undergraduate years at Harvard College. The diary begins August 17, 1796 and ends in August of 1800 and also includes several undated sheets filled with excerpts of poems. The daily entries describe many aspects of Mann's life, including not only his experiences at Harvard but also his involvement in the larger community. Entries related to life at Harvard describe club meetings (coffee club, Hasty Pudding Club and Phi Beta Kappa); trips to the theater; dinners at taverns; games and recreation, including a card game called "Loo," cribbage, backgammon, bowling, playing ball, fishing, skating and going for sleigh rides; gathering, and sometimes taking from others' gardens, food (most often plums, peaches, nuts and apples); what he ate (including one breakfast of three raw eggs and two glasses of wine); what he read (including Tristram Shandy and one of "Mrs. Ratcliffe's novels"); his friends, often mentioned by name; and academic work and formalities. In one entry he mentions the theft of several possessions from his room, and there are several entries about trips to Fresh Pond.

Lettre sur le Salon de 1806.

Two extracts from Archives littéraires de l'Europe, ou Mélanges de littérature, d'histoire et de philosophie, par une Société de Gens de Lettres, numbers 34 and 35 (Oct. 31 and Nov. 30, 1806).

Le Pausanias français : état des arts du dessin en France, à l'ouverture du XIXe siecle : Salon de 1806 : ouvrage dans lequel les principales productions de l'école actuelle sont classées, expliquées, analysées, à l'aide d'un commentaire exact, raisonné, et représentées dans une suite de dessins exécutés et gravés par les plus habiles artistes : on y a joint quelques portraits, gravés au trait, de grands artistes vivans, avec des notices historiques et inédites, concernant leur personne et leurs ouvrages /

Barbier, A.A. Ouvrages anonymes,

Le cardinal de Boisgelin, 1732-1804 ...

Mode of access: Internet.

Catalogue des livres de feu M. d'Ansse de Villoison ... : dont la vente se fera le leundi 3 mars 1806 ... en sa maison ..

Mode of access: Internet.

Les lettres de Saint Jean Chrisostome : traduities en françois sur le Grec des PP. Benedictins de la Congragation de saint Maur, où elles sont rangées selon l'ordre des tems ; avec ... deux traitez ecrits du lieu de son exil a la veuve sainte olimpiade ; Tome second.

Mode of access: Internet.

Les Allemands sous les aigles françaises; essai sur les troupes de la Confédération du Rhin, 1806-1814 ...

At head of title: ... Sauzey, de "La Sabretache".

Jean Louis : ou, La fille trouvée /

Reprint of the 1822 ed. published by Chez Hubert, Paris.

Œuvres de Jean Racine, avec des commentaires,

"Commentaire ... fait en société avec Blin de Sainmore."--Brunet, Manuel du libraire. 5. éd.

Essai sur l'ordre de Malte ou de St. Jean et sur ses rapports avec l'Allemagne en général et avec le Brisgau en particulier.

This is a French extract of a German ed., published in 1804, which has title: Über den Maltheserorden und seine gegenwärtigen Verhältnisse zu Deutschland überhaupt.