2,025 research outputs found
Quel dermatophyte peut-on encore appeler Trichophyton Mentagrophytes? : revue historique et illustration par deux cas cliniques
Effects of interplanetary transport on derived energetic particle source strengths
We study the transport of solar energetic particles (SEPs) in the inner heliosphere in order to relate observations made by an observer at 1 AU to the number and total energy content of accelerated particles at the source, assumed to be near the Sun. We use a numerical simulation that integrates the trajectories of a large number of individual particles moving in the interplanetary magnetic field. We model pitch angle scattering and adiabatic cooling of energetic ions with energies from 50 keV nucleon^(â1) to 100 MeV nucleon^(â1). Among other things, we determine the number of times that particles of a given energy cross 1 AU and the average energy loss that they suffer because of adiabatic deceleration in the solar wind. We use a number of different forms of the interplanetary spatial diffusion coefficient and a wide range of scattering mean-free paths and consider a number of different ion species in order to generate a wide range of simulation results that can be applied to individual SEP events. We apply our simulation results to observations made at 1 AU of the 20 February 2002 solar energetic particle event, finding the original energy content of several species. We find that estimates of the source energy based on SEP measurements at 1 AU are relatively insensitive to the mean-free path and scattering scheme if adiabatic cooling and multiple crossings are taken into account
Update on alternative therapies for vulvovaginal atrophy
Although systemic absorption of estrogen with local treatment for vulvovaginal atrophy (VVA) is most likely to be negligible, it is unknown whether this minimal absorption will affect outcomes in women with breast cancer. Use of adjuvant therapy with aromatase inhibitors for breast cancer is associated with high incidence of VVA symptoms. Because of the impact of moderate to severe VVA symptoms on the quality of life in breast cancer survivors, there has been an intense search for alternative therapies. Further, the publicity that followed the publication of data from the Womenâs Health Initiative Study has led to the suggestion by the medical community to use the lowest dose therapy possible for minimal time duration in order to avoid risks. This article will highlight the progress in alternative therapies for VVA
Efficacy and safety of ultra-low-dose Vagifem (10 mcg)
Vulvovaginal atrophy [VVA] is defined as inflammation of the vaginal epithelium due to atrophy secondary to decreased levels of circulating estrogen. There is currently only one approved method for the treatment of VVA, and that is the administration of exogenous estrogens. Overall, the ideal VVA treatment must have benefits, minimize risks, and enhance compliance in the patient while optimizing cost-effectiveness. Unfortunately, of the approximate 25% of symptomatic women that are thought to seek medical help, the proportion that receives hormone therapy may be small and its duration of use is short. Women have been very reluctant to take hormone therapy due to widely publicized results of the risks associated with hormone therapy. Thus, while menopausal hormone therapy was once accepted as the ideal approach for optimizing changes associated with menopause, prospective randomized clinical trials have challenged that view and have led to a marked decrease in the use of such therapy and increased search for low-dose therapies. This article will highlight the efficacy and safety of recently FDA-approved Vagifem (10 mcg) in treatment of VVA
Caractérisation des anneaux noethériens de séries formelles à croissance controlée. Application à la synthÚse spectrale
Given a subring of the ring of formal power series defined by the growth of the coefficients, we prove a necessary and sufficient condition for it to be a noetherian ring. As a particular case, we show that the ring of Gevrey power series is a noetherian ring. Then, we get a spectral synthesis theorem for some classes of ultradifferentiable functions
Group-level Emotion Recognition using Transfer Learning from Face Identification
In this paper, we describe our algorithmic approach, which was used for
submissions in the fifth Emotion Recognition in the Wild (EmotiW 2017)
group-level emotion recognition sub-challenge. We extracted feature vectors of
detected faces using the Convolutional Neural Network trained for face
identification task, rather than traditional pre-training on emotion
recognition problems. In the final pipeline an ensemble of Random Forest
classifiers was learned to predict emotion score using available training set.
In case when the faces have not been detected, one member of our ensemble
extracts features from the whole image. During our experimental study, the
proposed approach showed the lowest error rate when compared to other explored
techniques. In particular, we achieved 75.4% accuracy on the validation data,
which is 20% higher than the handcrafted feature-based baseline. The source
code using Keras framework is publicly available.Comment: 5 pages, 3 figures, accepted for publication at ICMI17 (EmotiW Grand
Challenge
Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5
THz-frequency optical pulses can resonantly drive selected vibrational modes
in solids and deform their crystal structure. In complex oxides, this method
has been used to melt electronic orders, drive insulator to metal transitions
or induce superconductivity. Strikingly, coherent interlayer transport strongly
reminiscent of superconductivity can be transiently induced up to room
temperature in YBa2Cu3O6+x. By combining femtosecond X-ray diffraction and ab
initio density functional theory calculations, we determine here the crystal
structure of this exotic non-equilibrium state. We find that nonlinear lattice
excitation in normal-state YBa2Cu3O6+x at 100 K causes a staggered
dilation/contraction of the Cu-O2 intra/inter- bilayer distances, accompanied
by anisotropic changes in the in-plane O-Cu-O bond buckling. Density functional
theory calculations indicate that these motions cause dramatic changes in the
electronic structure. Amongst these, the enhancement in the dx2-y2 character of
the in-plane electronic structure is likely to favor superconductivity.Comment: 28 pages, including Supplemen
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