1,721,145 research outputs found
Diagnostic methods for evaluating uterine cavity and endometrium morphology and thickness in infertile women.
No full textIn vitro maturation of primordial follicles after cryopreservation of human ovarian tissue: Problems remain
No full text
Endometrium Blood Flow Color-Doppler Evaluation Durino Luteal Phase Support After Ivf-Embryo Transfer, According To Different Route Progesterone Supplementation.
No full textA new study of the 10B(p,)7Be reaction from 0.35 to 1.8 MeV
No full textThe quantification of isotopes content in materials is extremely important in many research and industrial fields. Accurate determination of boron concentration is very critical in semiconductor, superconductor and steel industry, in environmental and medical applications as well as in nuclear and astrophysics research. The detection of B isotopes and of their ratio in synthetic and natural materials may be accomplished by gamma spectroscopy using the 10B(p,)7Be and 11B(p,)12C reactions at low proton energy. Here, the 10B(p,)7Be cross section is reported in the center of mass energy range 0.35 to 1.8 MeV. The keV rays were detected at and using a NaI(Tl) and an HPGe detectors, respectively. In the presented energy range, previous cross section data revealed discrepancies and normalisation issues. Existing data are compared to the new absolute measurement and discussed. The present data have been subtracted from a previous measurement of the total cross section to derive the contribution of the channel
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Semen quality and hormonal levels in infertile patients with varicocele
No full textObjective: Aim of this study was to evaluate the semen quality and the serum concentration of follicle-stimulating hormone (FSH) and Testosterone (T) in infertile patients with and without varicocele.
Material and methods: 365 infertile patients undergoing Assisted Reproduction Tecnique (ART) were retrospectively included in the study. All subject were evaluated by history, physical examination, semen analysis, semen culture, mixed anti-immunoglobulin reaction test (MAR) for demonstration of sperm agglutination antibodies IgG and IgA, serum FSH and T determination.
Results: We observed 97 (26.6%) patients affected by varicocele compared to 268 (73.4%) without varicocele. A significant reduced percentage of motile spermatozoa (24.58 +/- 21.68 vs 21.01 +/- 12.62, p < 0.001) and lower sperm concentration (15.50 +/- 23.30 vs 16.50 +/- 15.22, p < 0.001) were observed in patients with varicocele compared to patients without varicocele. No significant differences were observed in sperm vitality between the two population of men with and without varicocele. Serum FSH (10.42 +/- 10.84 vs 9.11 +/- 18.81, p < 0.001) and Testosterone (5.73 +/- 5.97 vs 5.21 +/- 2.43, p < 0.001) levels were significantly higher in patients with varicocele compared to patients without varicocele. Detection of IgG and IgA sperm antibodies were negative in both man with and without varicocele.
Conclusion: The direct connection between varicocele and infertility is not clear. The data of the present study suggest that the presence of a clinical varicocele rule out fertility in men affecting the hypothalamic pituitary-gonadal axis
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
- …
