41 research outputs found

    Association of Female Sexual Dysfunction and Fertility: a cross sectional study

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    Background: Sexual function plays an essential role in the bio-psychosocial wellbeing and quality of life of women and disturbances in sexual functioning often result in significant distress. Female sexual dysfunction (FSD) and subfertility are common problems affecting approximately 43 and 20% of women respectively. However, despite the high prevalence of both conditions, little has been studied on the effects of subfertility on sexual functioning especially in sub-Saharan Africa. We set out to compare the prevalence of female sexual dysfunction in patients on assessment for sub-fertility and those either seeking or already on fertility control services at a private tertiary teaching hospital in Kenya. Methods: This was an analytical cross sectional study. Eligible women of reproductive age (18–49 years), attending the gynaecological clinics with complaints of subfertility and those seeking fertility control services were requested to fill a general demographic tool containing personal data and the Female Sexual Function Index (FSFI) questionnaire after informed consent. Prevalence of sexual dysfunction was calculated as a percentage of patients not achieving an overall FSFI score of 26.55. Univariate and multivariate analysis were done to compare clinical variables to delineate the potential association. Results: The prevalence of female sexual dysfunction was 31.2% in the subfertile group and 22.6% in fertility control group. The difference was not statistically significant (p = 0.187). The mean domain and overall female sexual function scores were lower in the subfertile group than the fertility control group though this was not statistically significant. The most prevalent sexual domain dysfunctions in both the subfertility and fertility control groups were desire and arousal while the least in both groups was satisfaction dysfunction. Subfertility type was not associated with sexual dysfunction. Higher education attainment was protective of female sexual dysfunction in the subfertile group while use of hormonal contraception was associated with greater sexual impairment in the fertility control group. On logistic regression analysis, higher maternal age and alcohol use appeared to be protective against sexual dysfunction. Conclusion: The present study demonstrated no association between the fertility status and the prevalence female sexual dysfunction. Subfertility type was not associated with sexual dysfunction. Education level and hormonal contraception use were associated with female sexual dysfunction in the subfertile and fertility control groups respectively while alcohol use and higher maternal age appeared to be protective against sexual dysfunction

    ¿What, how and who eat through a ushnu?: Histories of commensalities in the ushnu de Guitián (Salta, Argentina)

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    En este artículo discutiremos las prácticas de comensalidad diaguita e inca en torno a la plataforma ushnu de Guitián (valle Calchaquí norte, Salta, Argentina). Las excavaciones que llevamos adelante en el interior de la plataforma nos permitieron identificar, recuperar y analizar variados rasgos y depósitos. Daremos cuenta de la estratigrafía, materiales, y contextos arqueológicos reconocidos durante las excavaciones prestando especial atención a la evidencia arqueobotánica. Argumentaremos que, durante las ceremonias desarrolladas en la plaza y en torno al ushnu, los Incas intentaron reorganizar las interacciones locales con una poderosa entidad no humana del paisaje local (cerro Meléndez). Sin embargo, esta reorganización no implicó cambios radicales en el modo y en aquello que los invitados locales consideraban adecuado ofrendar. Por el contrario, existen claras continuidades en la comensalidad diaguita antes y durante la ocupación Inca.In this article, we will discuss diaguita and inca commensality practices related to the ushnu platform of Guitián, an archaeological site located in the Northern Calchaquí Valley (Salta, Argentina). The excavations that we conducted inside the platform allowed us to identify, recover and analyse several features and deposits. We will give an account of the stratigraphy, materials, and archaeological contexts recognized during the excavations, paying special attention to the archaeobotanical evidence. We will argue that during the ceremonies held in the plaza and around ushnu, the Incas attempted to reorganize the local interactions with a powerful non-human entity of the local landscape (cerro Meléndez). However, this reorganization did not entail radical changes regarding what local guests considered appropriate to offer. On the contrary, there are clear continuities in diaguita commensality practices before and during the inca occupation.Fil: Amuedo, Claudia Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Antropología de Córdoba. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Instituto de Antropología de Córdoba; ArgentinaFil: Ferrari, Alejandro Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto Multidisciplinario de Historia y Ciencias Humanas; ArgentinaFil: Acuto, Felix Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto Multidisciplinario de Historia y Ciencias Humanas; ArgentinaFil: Lema, Veronica Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Antropología de Córdoba. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Instituto de Antropología de Córdoba; Argentin

    Combined fit to the spectrum and composition data measured by the Pierre Auger Observatory including magnetic horizon effects

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    The measurements by the Pierre Auger Observatory of the energy spectrum and mass composition of cosmic rays can be interpreted assuming the presence of two extragalactic source populations, one dominating the flux at energies above a few EeV and the other below. To fit the data ignoring magnetic field effects, the high-energy population needs to accelerate a mixture of nuclei with very hard spectra, at odds with the approximate E2^{-2} shape expected from diffusive shock acceleration. The presence of turbulent extragalactic magnetic fields in the region between the closest sources and the Earth can significantly modify the observed CR spectrum with respect to that emitted by the sources, reducing the flux of low-rigidity particles that reach the Earth. We here take into account this magnetic horizon effect in the combined fit of the spectrum and shower depth distributions, exploring the possibility that a spectrum for the high-energy population sources with a shape closer to E2^{-2} be able to explain the observations

    Measuring the muon content of inclined air showers using AERA and the water-Cherenkov detector array of the Pierre Auger Observatory

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    Studies of the mass composition of cosmic rays and proton-proton interaction cross-sections at ultra-high energies with the Pierre Auger Observatory

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    In this work, we present an estimate of the cosmic-ray mass composition from the distributions of the depth of the shower maximum (Xmax) measured by the fluorescence detector of the Pierre Auger Observatory. We discuss the sensitivity of the mass composition measurements to the uncertainties in the properties of the hadronic interactions, particularly in the predictions of the particle interaction cross-sections. For this purpose, we adjust the fractions of cosmic-ray mass groups to fit the data with Xmax distributions from air shower simulations. We modify the proton-proton cross-sections at ultra-high energies, and the corresponding air shower simulations with rescaled nucleus-air cross-sections are obtained via Glauber theory. We compare the energy-dependent composition of ultra-high-energy cosmic rays obtained for the different extrapolations of the proton-proton cross-sections from low-energy accelerator data

    Study of downward Terrestrial Gamma-ray Flashes with the surface detector of the Pierre Auger Observatory

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    The surface detector (SD) of the Pierre Auger Observatory, consisting of 1660 water-Cherenkov detectors (WCDs), covers 3000 km2 in the Argentinian pampa. Thanks to the high efficiency of WCDs in detecting gamma rays, it represents a unique instrument for studying downward Terrestrial Gamma-ray Flashes (TGFs) over a large area. Peculiar events, likely related to downward TGFs, were detected at the Auger Observatory. Their experimental signature and time evolution are very different from those of a shower produced by an ultrahigh-energy cosmic ray. They happen in coincidence with low thunderclouds and lightning, and their large deposited energy at the ground is compatible with that of a standard downward TGF with the source a few kilometers above the ground. A new trigger algorithm to increase the TGF-like event statistics was installed in the whole array. The study of the performance of the new trigger system during the lightning season is ongoing and will provide a handle to develop improved algorithms to implement in the Auger upgraded electronic boards. The available data sample, even if small, can give important clues about the TGF production models, in particular, the shape of WCD signals. Moreover, the SD allows us to observe more than one point in the TGF beam, providing information on the emission angle

    Investigating multiple elves and halos above strong lightning with the fluorescence detectors of the Pierre Auger Observatory

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    ELVES are being studied since 2013 with the twenty-four FD Telescopes of the Pierre Auger Observatory, in the province of Mendoza (Argentina), the world’s largest facility for the study of ultra-high energy cosmic rays. This study exploits a dedicated trigger and extended readout. Since December 2020, this trigger has been extended to the three High levation Auger Telescopes (HEAT), which observe the night sky at elevation angles between 30 and 60 degrees, allowing a study of ELVES from closer lightning. The high time resolution of the Auger telescopes allows us to upgrade reconstruction algorithms and to do detailed studies on multiple ELVES. The origin of multiple elves can be studied by analyzing the time difference and the amplitude ratio between flashes and comparing them with the properties of radio signals detected by the ENTLN lightning network since 2018. A fraction of multi-ELVES can also be interpreted as halos following ELVES. Halos are disc-shaped light transients emitted at 70-80 km altitudes, appearing at the center of the ELVES rings, due to the rearrangement of electric charges at the base of the ionosphere after a strong lightning event

    Status and expected performance of the AugerPrime Radio Detector

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    The dynamic range of the upgraded surface-detector stations of AugerPrime

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    The detection of ultra-high-energy cosmic rays by means of giant detector arrays is often limited by the saturation of the recorded signals near the impact point of the shower core at the ground, where the particle density dramatically increases. The saturation affects in particular the highest energy events, worsening the systematic uncertainties in the reconstruction of the shower characteristics. The upgrade of the Pierre Auger Observatory, called AugerPrime, includes the installation of an 1-inch Small PhotoMultiplier Tube (SPMT) inside each water-Cherenkov station (WCD) of the surface detector array. The SPMT allows an unambiguous measurement of signals down to about 250m from the shower core, thus reducing the number of events featuring a saturated station to a negligible level. In addition, a 3.8m2 plastic scintillator (Scintillator Surface Detector, SSD) is installed on top of each WCD. The SSD is designed to match the WCD (with SPMT) dynamic range, providing a complementary measurement of the shower components up to the highest energies. In this work, the design and performances of the upgraded AugerPrime surface-detector stations in the extended dynamic range are described, highlighting the accuracy of the measurements. A first analysis employing the unsaturated signals in the event reconstruction is also presented

    The second knee in the cosmic ray spectrum observed with the surface detector of the Pierre Auger Observatory

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