Reproduktivna biologija vrste Diplodus vulgaris (Teleostei, Sparidae) u vodama južnog Tunisa (središnji Mediteran)

The reproduction of the common-two banded seabream (N=916), Diplodus vulgaris, was studied in the Gulf of Gabes (Tunisia). The length at the first maturity averages 13.64 ± 0.18 cm for males and 13.84 ± 0.17 cm for females. Macroscopic examination of gonads and gonad-somatic index indicated that spawning occurs once a year between November and February with peak activity in November and December. Fecundity estimates ranged from 8 400 to 30 800 oocytes.Razmnožavanje fratra (N=916) Diplodus vulgaris, istraživano je u zaljevu Gabes (Tunis). Dužina prve spolne zrelosti je u prosjeku između 13,64 ± 0,18 cm za mužjake i 13,84 ± 0,17 cm za ženke. Makroskopsko ispitivanje gonada i gonadsko-somatskog indeksa pokazuje da se mriješćenje odvija jednom godišnje, između siječnja i veljače sa vrhuncem u studenom i prosincu. Procjene fekunditeta su u rasponu od 8 400 do 30 800 oocita

Reproduktivna biologija vrste Diplodus vulgaris (Teleostei, Sparidae) u vodama južnog Tunisa (središnji Mediteran)

The reproduction of the common-two banded seabream (N=916), Diplodus vulgaris, was studied in the Gulf of Gabes (Tunisia). The length at the first maturity averages 13.64 ± 0.18 cm for males and 13.84 ± 0.17 cm for females. Macroscopic examination of gonads and gonad-somatic index indicated that spawning occurs once a year between November and February with peak activity in November and December. Fecundity estimates ranged from 8 400 to 30 800 oocytes.Razmnožavanje fratra (N=916) Diplodus vulgaris, istraživano je u zaljevu Gabes (Tunis). Dužina prve spolne zrelosti je u prosjeku između 13,64 ± 0,18 cm za mužjake i 13,84 ± 0,17 cm za ženke. Makroskopsko ispitivanje gonada i gonadsko-somatskog indeksa pokazuje da se mriješćenje odvija jednom godišnje, između siječnja i veljače sa vrhuncem u studenom i prosincu. Procjene fekunditeta su u rasponu od 8 400 do 30 800 oocita

Ferromagnetic Josephson Junctions for High Performance Computation

Josephson junctions drive the operation of superconducting qubits and they are the key for the coupling and the interfacing of superconducting qubit components with other quantum platforms. They are the only means to introduce non linearity in a superconducting circuit and offer direct solutions to tune the properties of a superconducting qubit, thus enlarging the possible qubit layouts. Junctions performances and tunability can take advantage of using a large variety of barriers and their special functionalities. We mention pertinent results on the advances in understanding the properties of ferromagnetic junctions, which make possible the use of these devices either as memory elements and as core circuit elements

Properties of ferromagnetic Josephson junctions for memory applications

In this work we give a characterization of the RF effect of memory switching on Nb-Al/AlOx-(Nb)-Pd$_{0.99}$Fe$_{0.01}$-Nb Josephson junctions as a function of magnetic field pulse amplitude and duration, alongside with an electrodynamical characterization of such junctions, in comparison with standard Nb-Al/AlOx-Nb tunnel junctions. The use of microwaves to tune the switching parameters of magnetic Josephson junctions is a step in the development of novel addressing schemes aimed at improving the performances of superconducting memories.Comment: IEEE Trans. Appl. Supercond. Special Issue ISEC201

Healed Lesions of Human Cutaneous Leishmaniasis Caused By Leishmania major Do Not Shelter Persistent Residual Parasites

In human cutaneous leishmaniasis (HCL) caused by Leishmania (L.) major, the cutaneous lesions heal spontaneously and induce a Th1-type immunity that confers solid protection against reinfection. The same holds true for the experimental leishmaniasis induced by L. major in C57BL/6 mice where residual parasites persist after spontaneous clinical cure and induce sustainable memory immune responses and resistance to reinfection. Whether residual parasites also persist in scars of cured HCL caused by L. major is still unknown. Cutaneous scars from 53 volunteers with healed HCL caused by L. major were biopsied and the tissue sample homogenates were analyzed for residual parasites by four methods: i) microscope detection of amastigotes, ii) parasite culture by inoculation on biphasic medium, iii) inoculation of tissue exctracts to the footpad of BALB/c mice, an inbred strain highly susceptible to L. major, and iv) amplification of parasite kDNA by a highly sensitive real-time PCR (RT-PCR). Our results show that the scars of healed lesions of HCL caused by L. major do not contain detectable residual parasites, suggesting that this form likely induces a sterile cure at least within the scars. This feature contrasts with other Leishmania species causing chronic, diffuse, or recidivating forms of leishmaniasis where parasites do persist in healed lesions. The possibility that alternative mechanisms to parasite persistence are needed to boost and maintain long-term immunity to L. major, should be taken into consideration in vaccine development against L. major infection

Transport électrique et transfert de spin dans des constrictions de taille nanométrique

La thèse a porté sur l étude magnéto-résistive de parois de domaines dans des constrictions de taille nanométrique. La technique des jonctions à cassure était utilisée pour atteindre cet objectif. Elle permet en effet d accéder aux propriétés de transport dans des régimes où la section des constrictions est formée de quelques atomes uniquement. L'étude des parois de domaines a été réalisée sur des nanostructures homogènes en permalloy à géométrie adaptée permettant de piéger une paroi par une constriction et d étudier sa signature résistive. Plusieurs résultats intéressants ont été obtenus avant cassure. D une part, les parois peuvent être manipulées par des champs magnétiques et par des courants. Leur signature résistive est bien comprise grâce aux simulations micromagnétiques et des modèles résistifs (AMR, DWR). D autre part, l application d un courant DC aux parois, permet de déformer la paroi et d'accentuer sa contribution intrinsèque positive à la magnétorésistance. Cet effet est attribué au terme adiabatique du couple de transfert de spin.Un des résultats importants obtenu après cassure des échantillons est le passage d une contribution négative à une contribution positive des parois de domaines à la magnétorésistance. Cette contribution positive augmente en fonction de la résistance de la constriction.PARIS-BIUSJ-Physique recherche (751052113) / SudocSudocFranceF

Privacy‐preserving speaker verification system based on binary I‐vectors

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