Infliximab in recalcitrant severe atopic eczema associated with contact allergy.

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A Multi-Sensor Exportable Approach for Automatic Flooded Areas Detection and Monitoring by a Composite Satellite Constellation

Timely and frequently updated information about flood-affected areas and their space-time evolution are often crucial in order to correctly manage the emergency phases. In such a context, optical data provided by meteorological satellites, offering the highest available temporal resolution (from hours to minutes), could have a great potential. As cloud cover often occurs reducing the number of usable optical satellite images, an appropriate integration of observations coming from different satellite systems will surely improve the probability to find cloud-free images over the investigated region. To make this integration effective, appropriate satellite data analysis methodologies, suitable for providing congruent results, regardless of the used sensor, are envisaged. In this paper, a sensor-independent approach (RST, Robust Satellites Techniques-FLOOD) is presented and applied to data acquired by two different satellite systems (Advanced Very High Resolution Radiometer (AVHRR) onboard National Oceanic and Atmospheric Administration platforms and Moderate Resolution Imaging Spectroradiometer (MODIS) onboard Earth Observing System satellites) at different spatial resolutions (from 1 km to 250 m) in the case of Elbe flood event occurred in Germany on August 2002. Results achieved demonstrated as the full integration of AVHRR and MODIS RST-FLOOD products allowed us to double the number of satellite passes daily available, improving continuity of monitoring over flood-affected regions. In addition, the application of RST-FLOOD to higher spatial resolution MODIS (250 m) data revealed to be crucial not only for mapping purposes but also for improving RST-FLOOD capability in identifying flooded areas not previously detected at lower spatial resolution

Integration of optical and passive microwave satellite data for flooded area detection and monitoring

Flooding represents a serious threat to millions of people around the world and its hazard is rising as a result of climate changes. From this perspective, flood risk management is a key focus of many governments, whose priority is to have frequently updated and accurate information about the flood state and evolution to promptly react to the disaster and to put in place effective countermeasures devoted to limit damages and human lives losses. Remote sensing technology allows for flood monitoring at different spatial and temporal resolutions with an adequate level of accuracy. In particular, for emergency response purposes, an integrated use of satellite data, acquired by both optical and passive or active microwave instruments, has to be preferred to have more complete and frequently updated information on soil conditions and to better support decision makers. In this framework, multi-year time series of MODIS (Moderate Resolution Imaging Spectroradiometer) and AMSR-E (Advanced Microwave Scanning Radiometer for Earth Observing System) data were processed and analyzed. In detail, the Robust Satellite Techniques (RST), a multi-sensor approach for satellite data analysis, has been implemented for studying the August 2002 Elbe river flood occurred in Germany, trying to assess the potential of such an integrated system for the determination of soil status and conditions (i.e. moisture variation, water presence) as well as for a timely detection and a near real time monitoring of critical soil conditions

Functional design of distributed-power freight trains: Simulation of operation on the Turin-Savona railway line

This paper presents an in-depth investigation of the engineering aspects related to the design and operation of distributed-power freight trains (F-EMU, freight - Electric Multiple Unit), and their potential advantages, by evaluating the various components of this new kind of train and comparing its performance with a traditional freight train. Electric motors, distributed along certain motorised carriages of connected wagons, allow, among others, the power necessary to avoid multiple locomotives, used on traditional lines for the heaviest trains, to be supplied, and access to high-speed lines, which were originally designed and constructed - in Italy for example - for mixed use (i.e. for passengers and freight). Interesting speed levels (140- 160 km/h) could be achieved, subject to the other requirements of the rolling stock, which are indicated later on in the paper. EMU trains are known to be used for passenger services, as they allow high speeds to be reached, energy to be recuperated during braking and, in general, increases in the performances of the rolling stock to be obtained. Analyses of the operation of freight trains have pointed out that distributed-power trains are able to reach appreciable acceleration values, during traction, because of a better distribution of the adhesive weight. High performances can be achieved, during the braking phase, when electro-dynamic braking, which allows energy to be recovered, is adopted together with a dominant electro-pneumatic braking system: this also prevents the infrastructure operator from having to lengthen the block sections to allow any poorly-braking 700-750 m long traditional trains to transit. The use of such innovative freight trains also satisfies the modern requirements of intermodal transport: electrification of the whole train makes it possible to transport units of refrigerated goods and perishable goods, and to conduct a constant monitoring of the load. After having examined the design and functional requirements of the F-EMU train and a traditional one, a comparison is made of the performances of a distributedpower freight train and a conventional one, on the Turin- Savona railway line, through the use of a micro-simulating software package that is able to reproduce the railway operations along the considered stretch and saturate the current passenger timetable with freight trains. From the results, it has emerged that the adoption of distributed-power freight trains leads to a marked reduction of the travel times and an increase in the intermodal transport units (UTI) that can be transported over the reference time frame, especially when considering the use of 750 m long trains

Using RST approach and EOS-MODIS radiances for monitoring seismically active regions: a study on the 6 April 2009 Abruzzo earthquake

In the last few years, Robust Satellite data analysis Techniques (RST) have been proposed and successfully applied for monitoring major natural and environmental risks. Among the various fields of application, RST analysis has been used as a suitable tool for satellite TIR surveys in seismically active regions, devoted to detect and monitor thermal anomalies possibly related to earthquake occurrence. In this work, RST has been applied, for the first time, to thermal infrared observations collected by MODIS (Moderate Resolution Imaging Spectroradiometer) - the sensor onboard EOS (Earth Observing System) satellites - in the case of Abruzzo (Italy) earthquake occurred on 6 April 2009 (M(L)similar to 5.8). First achievements, shown in this work, seem to confirm the sensitivity of the proposed approach in detecting perturbations of the Earths emission thermal field few days before the event. The reliability of such results, based on the analysis of 10 years of MODIS observations, seems to be supported by the results achieved analyzing the same area in similar observation conditions but in seismically unperturbed periods (no earthquakes with M(L)>= 5) that will be also presente

UK export performance research - review and implications

Previous research on export performance has been criticized for being a mosaic of autonomous endeavours and for a lack of theoretical development. Building upon extant models of export performance, and a review and analysis of research on export performance in the UK for the period 1990-2005, an integrated model of export performance is developed and theoretical explanations of export performance are put forward. It is suggested that a multi-theory approach to explaining export performance is viable. Management and policy implications for the UK emerging from the review and synthesis of the literature and the integrated model are discussed

Plasma cholesterol levels and brain development in preterm newborns.

BackgroundTo assess whether postnatal plasma cholesterol levels are associated with microstructural and macrostructural regional brain development in preterm newborns.MethodsSixty preterm newborns (born 24-32 weeks gestational age) were assessed using MRI studies soon after birth and again at term-equivalent age. Blood samples were obtained within 7 days of each MRI scan to analyze for plasma cholesterol and lathosterol (a marker of endogenous cholesterol synthesis) levels. Outcomes were assessed at 3 years using the Bayley Scales of Infant Development, Third Edition.ResultsEarly plasma lathosterol levels were associated with increased axial and radial diffusivities and increased volume of the subcortical white matter. Early plasma cholesterol levels were associated with increased volume of the cerebellum. Early plasma lathosterol levels were associated with a 2-point decrease in motor scores at 3 years.ConclusionsHigher early endogenous cholesterol synthesis is associated with worse microstructural measures and larger volumes in the subcortical white matter that may signify regional edema and worse motor outcomes. Higher early cholesterol is associated with improved cerebellar volumes. Further work is needed to better understand how the balance of cholesterol supply and endogenous synthesis impacts preterm brain development, especially if these may be modifiable factors to improve outcomes

Identification of ALDH1A3 as a Viable Therapeutic Target in Breast Cancer Metastasis-Initiating Cells

The development of efficacious therapies targeting metastatic spread of breast cancer to the brain represents an unmet clinical need. Accordingly, an improved understanding of the molecular underpinnings of central nervous system spread and progression of breast cancer brain metastases (BCBM) is required. In this study, the clinical burden of disease in BCBM was investigated, as well as the role of aldehyde dehydrogenase 1A3 (ALDH1A3) in the metastatic cascade leading to BCBM development. Initial analysis of clinical survival trends for breast cancer and BCBM determined improvement of breast cancer survival rates; however, this has failed to positively affect the prognostic milestones of triple-negative breast cancer (TNBC) brain metastases (BM). ALDH1A3 and a representative epithelial-mesenchymal transition (EMT) gene signature (mesenchymal markers, CD44 or Vimentin) were compared in tumors derived from BM, lung metastases (LM), or bone metastases (BoM) of patients as well as mice after injection of TNBC cells. Selective elevation of the EMT signature and ALDH1A3 were observed in BM, unlike LM and BoM, especially in the tumor edge. Furthermore, ALDH1A3 was determined to play a role in BCBM establishment via regulation of circulating tumor cell adhesion and migration phases in the BCBM cascade. Validation through genetic and pharmacologic inhibition of ALDH1A3 via lentiviral shRNA knockdown and a novel small-molecule inhibitor demonstrated selective inhibition of BCBM formation with prolonged survival of tumor-bearing mice. Given the survival benefits via targeting ALDH1A3, it may prove an effective therapeutic strategy for BCBM prevention and/or treatment

The energy consumption of trains in operation: simulation, a methodology for the analysis and influence of the driving style / Il consumo energetico di treni in esercizio: simulazione, metodologia di analisi ed influenza dello stile di condotta

The paper proposes an analysis methodology of energy consumptions in the railway field, presenting a comparison between an analytical calculation model and some measurements. It is hereafter assessed the influence of some parameters which characterise the travel diagrams of trains. The first part illustrates the analysis of the measured speed profile of a regional passenger train and of a TGV train covering a conventional line, with a high grade (the Torino-Modane), then introducing the comparison with the hypothetical profile obtained through simulation. Such comparison therefore allows deducing and quantifying the differences between the real and the simulated travel diagram. The latter employs completely the traction performances of the convoy and, therefore, features the smaller travel time on the considered line. The second part of this paper focuses the attention on the run of a freight train covering only one of the first sections of the same line, through the integration of the motion equation implemented on a spread sheet. In this part the analysis is carried on introducing important simplifications, as neglecting the effects of the line profile (rather flat in the considered stretch), in order to facilitate the analytical model. With such assumptions the influence on energy consumptions due to the scheduled travel diagram and to the driving style is evaluated. Special emphasis is given on the consumption connected to the braking stages and the relevant influence on the maintenance of brakes and wheel-sets, which has a direct economic impact for the transport operators. The role of innovative technological solutions is highlighted