Autour des Sonnets

Jacques Darras : Nous venons de nous mettre d’accord il y a cinq minutes exactement, avec Lachlan. Je vais lire un papier très court, rassurez-vous, en anglais et Lachlan, de façon très élégante va lire le sien en français. Et ensuite il m’a proposé que nous fassions un échange en français également. Je m’étais préparé à ce que cela soit en anglais, mais je suis un peu soulagé, je dois le dire, surtout devant de grands spécialistes comme vous. Alors je vais lire mon texte en anglais, je vais ..

Rosaire de la prose

Darras Jacques. Rosaire de la prose. In: Cahiers Charles V, n°5,1983. Espaces américains. pp. 167-170

Au-delà des avant-gardes. Lettre au jeune poète que je me sens redevenir au retour d’un voyage en Europe centrale

This paper is simultaneously reflexive, polemic and poetic as it raises the central issues of poetry’s status in today’s world. The author expresses his discomfort with the devaluation of the poetic text in times of the merchandization of culture and of the transformation of presses into business ventures. He also worries about the increasing isolation of an elitist poetry based on hermeticism and confidentiality. He takes the reader back to a European tradition, found in Rilke notably, that assigns other missions to the poem. Committed to its present times and its political and economic conditions, poetry must battle on the same grounds as all the arts to address an audience beyond the narrow circles of poetry specialists. Through the invention of new forms that coincide with today’s world, such as slam poetry, the poem can find (again) the channels of its widest distribution, whereby the poet opens new ways and discovers new orders

Alice au nord d’Eden

Alice North of Eden This short paper tries to put English Literature in perspective by taking account of two new “intruders” Tony Harrison and Vikram Seth about whom it is difficult to say for sure whether they belong to the field of poetry or the novel. The question is raised - and no more than that - whether the Matter of Britain can still be transformed according to ancient artistic rules.L’auteur de ce court article essaie de mettre en perspective la littérature britannique après l’intrusion de deux auteurs apparus parmi d’autres, Tony Harrison et Vikram Seth, dont on ne peut plus dire avec certitude s’ils sont poètes ou romanciers. La “matière” britannique se prête-t-elle encore aux formes de transformation artistique traditionnelles ?Darras Jacques. Alice au nord d’Eden. In: Cahiers Charles V, n°18, mai 1995. Jeux d'écriture. Le roman britannique contemporain. pp. 145-151

Family Making of Prismatic Blades. The pecked and ground platform preparation at the beginning of manufacture process: a good indicator of a household organization of production with division of labor

International audienc

A dynamic, sex-specific expression pattern of genes regulating thyroid hormone action in the developing zebra finch song control system

peer reviewedThe zebra finch (Taeniopygia guttata) song control system consists of several series of interconnected brain nuclei that undergo marked changes during ontogeny and sexual development, making it an excel- lent model to study developmental neuroplasticity. Despite the demonstrated influence of hormones such as sex steroids on this phenomenon, thyroid hormones (THs) – an important factor in neural devel- opment and maturation – have not been studied in this regard. We used in situ hybridization to compare the expression of TH transporters, deiodinases and receptors between both sexes during all phases of song development in male zebra finch. Comparisons were made in four song control nuclei: Area X, the lateral magnocellular nucleus of the anterior nidopallium (LMAN), HVC (used as proper name) and the robust nucleus of the arcopallium (RA). Most genes regulating TH action are expressed in these four nuclei at early stages of development. However, while general expression levels decrease with age, the activating enzyme deiodinase type 2 remains highly expressed in Area X, HVC and RA in males, but not in females, until 90days post-hatch (dph), which marks the end of sensorimotor learning. Furthermore, the L-type amino acid transporter 1 and TH receptor beta show elevated expression in male HVC and RA respectively compared to surrounding tissue until adulthood. Differences compared to sur- rounding tissue and between sexes for the other TH regulators were minor. These developmental changes are accompanied by a strong local increase in vascularization in the male RA between 20 and 30 dph but not in Area X or HVC. Our results suggest that local regulation of TH signaling is an important factor in the development of the song control nuclei during the song learning phase and that TH activation by DIO2 is a key player in this process

A dynamic, sex-specific expression pattern of genes regulating thyroid hormone action in the developing zebra finch song control system

The zebra finch (Taeniopygia guttata) song control system consists of several series of interconnected brain nuclei that undergo marked changes during ontogeny and sexual development, making it an excellent model to study developmental neuroplasticity. Despite the demonstrated influence of hormones such as sex steroids on this phenomenon, thyroid hormones (THs) - an important factor in neural development and maturation - have not been studied in this regard. We used in situ hybridization to compare the expression of TH transporters, deiodinases and receptors between both sexes during all phases of song development in male zebra finch. Comparisons were made in four song control nuclei: Area X, the lateral magnocellular nucleus of the anterior nidopallium (LMAN), HVC (used as proper name) and the robust nucleus of the arcopallium (RA). Most genes regulating TH action are expressed in these four nuclei at early stages of development. However, while general expression levels decrease with age, the activating enzyme deiodinase type 2 remains highly expressed in Area X, HVC and RA in males, but not in females, until 90days post-hatch (dph), which marks the end of sensorimotor learning. Furthermore, the L-type amino acid transporter 1 and TH receptor beta show elevated expression in male HVC and RA respectively compared to surrounding tissue until adulthood. Differences compared to surrounding tissue and between sexes for the other TH regulators were minor. These developmental changes are accompanied by a strong local increase in vascularization in the male RA between 20 and 30dph but not in Area X or HVC. Our results suggest that local regulation of TH signaling is an important factor in the development of the song control nuclei during the song learning phase and that TH activation by DIO2 is a key player in this process.status: publishe