Urticaria and infections

Urticaria is a group of diseases that share a distinct skin reaction pattern. Triggering of urticaria by infections has been discussed for many years but the exact role and pathogenesis of mast cell activation by infectious processes is unclear. In spontaneous acute urticaria there is no doubt for a causal relationship to infections and all chronic urticaria must have started as acute. Whereas in physical or distinct urticaria subtypes the evidence for infections is sparse, remission of annoying spontaneous chronic urticaria has been reported after successful treatment of persistent infections. Current summarizing available studies that evaluated the course of the chronic urticaria after proven Helicobacter eradication demonstrate a statistically significant benefit compared to untreated patients or Helicobacter-negative controls without urticaria (p < 0.001). Since infections can be easily treated some diagnostic procedures should be included in the routine work-up, especially the search for Helicobacter pylori. This review will update the reader regarding the role of infections in different urticaria subtypes

Effects of land-use change on some hydro-physical properties of soils

This study was conducted to determine the effects of different land-use types on hydro-physical properties of topsoil in Bartm-Iskalan Creek Catchment located in Western Black Sea region. Duplicate topsoil samples were taken using steel cylinders (400 cm3) at 100 different sampling points from 3 different land-use types (34 from farmlands, 34 from rangelands and 32 from forests). Data were analyzed using ANOVA, and means were compared by Tukey's test. Results indicated that forests had the highest organic matter content (4.17 %), total porosity (46.66 %), water holding capacity (34.19 %), hydraulic conductivity (24.75 cm/h), moisture content at field capacity (29.62 %) and available water (6.94 %), whereas rangelands had the lowest hydraulic conductivity (2.33 cm/h), water holding capacity (29.46 %), total porosity (43.08 %), and organic matter content (2.73 %), and farmlands had the lowest moisture content at the field capacity (28.73 %) and available water capacity (3.01 %) in their topsoils

Comparison of the detection performance of an FMCW coastal surveillance radar for v and H polarizations

The present work supports the use of V-polarization instead of H-polarization under CFAR detection in FMCW coastal surveillance radars due to its statistical advantage. The sea clutter reflectivity, σ0, is about 3-5 dB less for H-polarization than for V-polarization. However, the sea clutter echoes are spikier for H-polarization than V-polarization for a high resolution radar. It has been suggested that for a high resolution radar V-polarization is to be preferred over H-polarization for a fixed threshold detection below a critical radar height [1]. The new numerical results for the detection performance of an FMCW radar with CFAR detection supporting the above argument will be given in the following sections

Cover and management factors for the Universal Soil-Loss equation for forest ecosystems in the Marmara region, Turkey

The Universal Soil-Loss Equation (USLE) predicts annual soil loss from agricultural uplands under specified land use and management conditions. Recently, some attempts have been made to apply USLE to forest lands in Turkey. This regional application of USLE and its reliability should be tested against measured data, especially for forest ecosystems. Our objective was to compute the cropping management (C) and the support practice (P) factors of the equation together in a single numerical value as a cover and management factor (CP) for forest and pseudo-maqui ecosystems using the local watershed and plot experiments carried out in the vicinity of Istanbul. CP factors were computed using known (rainfall erosivity factor, R) and estimated numerical values of other factors (average annual soil loss, A; soil-crodibility factor, K; combined slope-length and slope-steepness factor, LS). The CP factors were found to be 0.021 for old-growth oak-beech forest ecosystem in watershed-I and pseudo-maqui ecosystem and 0.011 for forest ecosystem in watershed-II. (c) 2005 Elsevier B.V. All rights reserved

Talazoparib in locally advanced or metastatic breast cancer patients: Experience from an early access program in Turkey

ESMO Breast Cancer Virtual Congress -- MAY 05-08, 2021 -- ELECTR NETWORK[No Abstract Available]European Soc Med Onco