Adairbaxter0640

n intermediate- and high-risk localized PCa, BMI was an independent predictor of the risk of multiple lymph node metastases. The inclusion of BMI within LNI risk calculators could be helpful, and a detailed counseling in obese patients should be required.

To evaluate the prevalence of extraplacental anastomoses (EPA) and the factors associated.

A retrospective study including 144 placentas from monochorionic diamniotic (MCDA) twins delivering at one institution was performed. EPA were defined as any intertwin anastomosis located outside the chorionic plate on macroscopic inspection. The association with perinatal factors and with umbilical cord insertion site was analyzed.

The prevalence of EPA was 4.9% (7/144). Velamentous cord insertion of both twins was significantly associated with the presence of EPA in the multivariate logistic regression model (p = 0.045).

EPA was found in ≈5% of MCDA twin pregnancies.

EPA was found in ≈5% of MCDA twin pregnancies.Collapsing glomerulopathy has multiple associations, including viral infections, medications like bisphosphonates and interferon, autoimmune diseases, and genetic predisposition. We report a case of collapsing focal segmental glomerulosclerosis associated with persistently high levels of interferon gamma produced by T-cell receptor αβ (+), CD4- CD8- (double negative) T lymphocytes that progressed despite treatment and improvement of other cytokine levels. OSI-930 order Double negative T cells are elevated and activated in autoimmune lymphoproliferative syndrome (ALPS). Production of elevated interferon gamma levels from double negative T cells in ALPS despite treatment provides insight to the pathophysiology of collapsing glomerulopathy, guiding future research for collapsing glomerulopathy.The aim of this study was to explore the use of a logarithmic amplifier to improve the spatial resolution of a low-cost Electrical Impedance Tomography (EIT) system. In an EIT system, the measured signal has a large dynamic range from µV to mV, leading to the requirement of high resolution ADC cards. Logarithmic amplifier reduces the dynamic range, by expanding lower values and compressing higher values, thereby improving the sensitivity and at the same time preventing signal from saturation. In addition, a low resolution ADC can be used, making the system cost effective. This work evaluated the performance of a logarithmic amplifier and a linear amplifier used for signal conditioning, in a low-cost EIT system.

Two EIT systems based on linear amplifier and logarithmic amplifier were designed. Phantom experiments were carried out with very small amounts of current injection. The signal-to-noise ratio (SNR), image quality, minimum detectable size and minimum detectable conductivity change were obtained.

Logarithmic amplifier based EIT system increased the average SNR by 4dB. It also showed improvement in the resolution (RES) and contrast-to-noise ratio (CNR) of the images. The minimum size detectable by the logarithmic amplifier based system was of radius 0.25 cm in a tank of radius 11cm and minimum change in conductivity detectable was 11 %.

Logarithmic amplifier based signal conditioning is a promising technique for improving the spatial resolution a low-cost EIT system that has a low resolution ADC.

Logarithmic amplifier based signal conditioning is a promising technique for improving the spatial resolution a low-cost EIT system that has a low resolution ADC.Pseudo-relativistic chiral electrons in 2D graphene and 3D topological semimetals, known as massless Dirac or Weyl fermions, constitute various intriguing topics in modern condensed-matter physics. Among these electron-electron Coulomb-interaction effects are particularly unique and attract great attentions since the interaction between the chiral electrons is not screened and remains long-ranged, in contrast to its screened and short-ranged property in conventional correlated materials. In graphene the long-range interaction has been shown to induce an anomalous logarithmic renormalization of velocity and, at strong coupling, even led to predictions of exotic phase transitions with a spontaneous mass acquisition. The layered organic material α-(BEDT-TTF)2I3under pressure provides an excellent testing ground for this type of interaction effects where, unlike graphene, a 2D massless-Dirac-fermion phase appears directly next to a correlated insulating phase. In this review we give an overview of our recent progress on the understanding of the interacting chiral electrons in 2D, placing particular emphasis on graphene and α-(BEDT-TTF)2I3. We first review the current experimental and theoretical understandings of the interaction effects in graphene, turn attentions to the status of α-(BEDT-TTF)2I3and highlight its relevance to and difference from graphene. The second half of this review focusses on nuclear magnetic resonance (NMR) experiments and associated model calculations in the latter system; they provide unprecedented opportunities to resolve the momentum dependence of spin excitations and correlations influenced by strong electronic interactions around the band-crossing Dirac points (valleys) at and near the charge neutrality. The observations of an anisotropic reshaping of a tilted Dirac cone and various orthodox electron correlation effects as well as precursor fluctuations of an incipient instability towards intervalley excitonic condensate shall be reviewed and discussed.The reconstruction of the Cochabamba (Bolivia) radiological incident (IAEA, 2004) was used to assess and evaluate retrospective dosimetry methodologies. For this purpose an unshielded radioactive source was placed inside a transportation vehicle (bus) resembling an Radiological Exposure Device (RED). External doses were assessed using water and anthropomorphic phantoms that were placed at various positions in the vehicle and equipped with both fortuitous dosimeters (chip cards, mobile phones), individual dosimeters (electronic dosimeters, thermoluminescent and optically stimulated luminescence dosimeters) and in three cases also with blood sample tubes in thermos flasks for cytogenetic methods. This paper gives a detailed description of the experimental setup, the results of the reference dosimetry, including organ dose assessment for the phantom closest to the source, and includes a compilation of the main results obtained by the retrospective dosimetry techniques. Comparison is made to the results of dose reconstruction obtained by IAEA during the response to the Cochabamba incident in 2002.