Vaginal cytology for estrus detection in ocelot (Leopardus pardalis)

Utilizou-se a citologia vaginal por meio de diferentes métodos de coloração para detecção de cio em jaguatirica, Leopardus pardalis, pela estimulação hormonal exógena e pela avaliação das estruturas ovarianas por videolaparoscopia. Cinco fêmeas foram tratadas com eCG/hCG e FSH/LH a cada quatro meses pelo período de dois anos. Videolaparoscopia foi realizada após cada tratamento utilizando-se cetamina-xilazina e isoflurano. Esfregaços vaginais foram obtidos 15 dias antes e após a videolaparoscopia. As lâminas foram analisadas ao microscópio de luz quanto aos tipos celulares predominantes. Todos os animais apresentaram folículos maduros (>2mm) e corpos lúteos recentes em todas as intervenções. Não houve diferença significativa entre os resultados obtidos na mesma coloração de acordo com os tratamentos utilizados. Todas as técnicas mostraram-se eficientes na detecção de células superficiais queratinizadas anucleadas e nucleadas, intermediárias, parabasais e basais. Foi possível determinar a fase de estro em Leopardus pardalis por meio da citologia vaginalVaginal cytology was evaluated for estrus detection using different stains after hormonal stimulation with exogenous gonadotrophin (eCG/hCG, FSH/LH) and videolaparoscopy for ovarian structure evaluation. Five L. pardalis were treated four times during two years. After each treatment, videolaparoscopy was performed using Ketamine-Xylazine and Isoflurane. Vaginal cytology was made 15 days before and after videolaparoscopy. Three stains were used: Diff Quick, Papanicolaou, and Shorr. The slides were analyzed for the typical cell predominance. All the animals showed mature follicles (>2mm) and recent corpus luteum in all procedures. No significative difference was observed between the results in the same stain according to the treatment eCG/hCG and FSH/LH. All stains were efficient in detection of nucleated and anuclear superficial keratinized cells; intermediated, parabasal, and basal cells. Vaginal cytology can be used for estrus detection in Leopardus pardalisFAPES

Commensurate-Incommensurate transition in the melting process of the orbital ordering in Pr0.5Ca0.5MnO3: neutron diffraction study

The melting process of the orbital order in Pr0.5Ca0.5MnO3 single crystal has been studied in detail as a function of temperature by neutron diffraction. It is demonstrated that a commensurate-incommensurate (C-IC) transition of the orbital ordering takes place in a bulk sample, being consistent with the electron diffraction studies. The lattice structure and the transport properties go through drastic changes in the IC orbital ordering phase below the charge/orbital ordering temperature Tco/oo, indicating that the anomalies are intimately related to the partial disordering of the orbital order, unlike the consensus that it is related to the charge disordering process. For the same T range, partial disorder of the orbital ordering turns on the ferromagnetic spin fluctuations which were observed in a previous neutron scattering study.Comment: 5 pages, 2 figures, REVTeX, to be published in Phys. Rev.

Pouvoir immaturicide d’un mélange à base de tétrachlorure de carbone à l’égard de Fasciola hepatica et sa toxicité pour le mouton

Guilhon Jean, Barnabé R. Pouvoir immaturicide d’un mélange à base de tétrachlorure de carbone à l’égard de Fasciola hepatica et sa toxicité pour le mouton. In: Bulletin de l'Académie Vétérinaire de France tome 128 n°6-7, 1975. pp. 341-347

Toxicité du Mebendazole pour le Mouton

Guilhon Jean, Barnabé R. Toxicité du mébendazole pour le Mouton. In: Bulletin de l'Académie Vétérinaire de France tome 125 n°10, 1972. pp. 495-498

Essais de traitement de la staphylo-démodexose canine par l'iodure de méthionine-méthylsulfonium

Guilhon Jean, Barnabé R. Essais de traitement de la staphylo-démodexose canine par l’iodure de méthionine-méthylsulfonium. In: Bulletin de l'Académie Vétérinaire de France tome 126 n°10, 1973. pp. 431-442

Disparition provisoire de la toison des moutons après l’administration d’un dérivé du benzimidazole

Guilhon Jean, Barnabé R. Disparition provisoire de la toison des moutons après l’administration d’un dérivé du benzimidazole. In: Bulletin de l'Académie Vétérinaire de France tome 126 n°7, 1973. pp. 291-297

Action du Mébendazole sur les Trichures parasites des ovins et du chien

Guilhon Jean, Barnabé R. Action du Mébendazole sur les Trichures parasites des ovins et du chien. In: Bulletin de l'Académie Vétérinaire de France tome 126 n°7, 1973. pp. 299-304

Heavy Superheated Droplet Detectors as a Probe of Spin-independent WIMP Dark Matter Existence

At present, application of Superheated Droplet Detectors (SDDs) in WIMP dark matter searches has been limited to the spin-dependent sector, owing to the general use of fluorinated refrigerants which have high spin sensitivity. Given their recent demonstration of a significant constraint capability with relatively small exposures and the relative economy of the technique, we consider the potential impact of heavy versions of such devices on the spin-independent sector. Limits obtainable from a $\mathrm{CF_{3}I}$-loaded SDD are estimated on the basis of the radiopurity levels and backgrounds already achieved by the SIMPLE and PICASSO experiments. With 34 kgd exposure, equivalent to the current CDMS, such a device may already probe to below 10$^{-6}$ pb in the spin-independent cross section.Comment: 9 pages, 4 figures, accepted Phys. Rev.

Risk factors that may signify a propensity to the use of drugs in students at a public university

Introduction: We sought to evaluate the risk factors that may increase the propensity to use licit and illicit drugs among students at a public university. Methods: The project involved students (n = 268) enrolled in the first and fourth years of courses in the areas of the social and biological sciences at a public university. Data collection was conducted by means of self-administered, semistructured questionnaires, based on such standardized assessment instruments as Audit, Assist, Cage and Duse. Collected data were analyzed quantitatively by calculating the percentages and evaluating the data in terms of categories of risk, classifying them by age, gender, religion, schooling, use (before or after entering university) and contexts of use. By means of this survey the researchers were able to correlate the use of drugs to the risk factors that might increase the students’ propensity to use these substances. Results: The results revealed a high proportion of current drug-using students, but showed no significant differences between the first and fourth year students as regards contexts of use. However, 67% of students regarded the university environment as encouraging the use of drugs. Students pointed to such major risk factors as friends’ and fellow-students’ influence, university parties, excessive curiosity and desire to experiment. Conclusion: Due to the high rate of drug use among university students, by the determination of the risk factors related to the university environment and also knowing that the process of addiction is one of growing chemical dependence, the importance of the development and implementation of public health policies at all levels, especially in terms of approaches and specific interventions addressing this population, should be noted

Etude de la toxicité aiguë, pour le mouton, d'un nouveau fasciolicide : le 3,5-diiodo-3'-chloro-4'- (p-chlorophénoxy)-salicylanilide

Guilhon Jean, Jolivet Gilbert, Barnabé R. Etude de la toxicité aiguë, pour le mouton, d’un nouveau fasciolicide : le 3,5-diiodo-3'-chloro-4'-(p-chlorophénoxy)-salicylanilide. In: Bulletin de l'Académie Vétérinaire de France tome 124 n°1, 1971. pp. 33-37