Myelodysplasia in a psoriasis patient receiving etanercept : Cause or coincidence?

Peer reviewedFinal Accepted Versio

PERFORMANCE EVALUATION OF CROSS-LAYER DESIGN WITH DISTRIBUTED AND SEQUENTIAL MAPPING SCHEME FOR VIDEO APPLICATION OVER IEEE 802.11E

The rapid development of wireless communication imposes several challenges to support QoS for real-time multimedia applications such as video stream applications. Researchers tackled these challenges from different points of view including the semantics of the video to achieve better QoS requirements. The main goal of this research is to design a UDP protocol to realize a distributed sequential mapping scheme (DSM) with a cross-layer design and evaluate its accuracy under different network conditions. In DSM, the perceived quality of a multi-layer video is addressed by mapping each video layer into channel resources represented as queues or access categories (ACs) existing in IEEE 802.11e MAC layer. This research work further investigates the efficiency of this scheme with actual implementation and thorough simulation experiments. The experiments reported the efficiency of this scheme with the presence of different composite traffic models covering most known traffic scenarios using Expected Reconstructed Video Layers (ERVL) and packet loss rate as accuracy measures. This research work also investigates the accuracy of calculating the ERVL compared to its value using actual readings of layers drop rate. The effect of changing the ACs queue size on the ERVL is studied. The use of this scheme shows zero-drop in the base layer in almost all scenarios where no ongoing traffic is presented except that the testing video sessions between nodes. In these experiments, the ERVL continuously reported high values for the number of expected reconstructed video layers. While these values dramatically vary when introducing ongoing different composite traffic models together with the testing video sessions between nodes. Finally, a 40% increase in the ACs queue size shows significant improvement on ERVL while an increase of the queue size beyond this value has very little significance on ERVL

Gas-driven sorption heat pumps; a potential trend-setting heating technology

Part of: Thermally driven heat pumps for heating and cooling. – Ed.: Annett Kühn – Berlin: Universitätsverlag der TU Berlin, 2013 ISBN 978-3-7983-2686-6 (print) ISBN 978-3-7983-2596-8 (online) urn:nbn:de:kobv:83-opus4-39458 [http://nbn-resolving.de/urn:nbn:de:kobv:83-opus4-39458]Increased efforts to reduce CO2 emissions and continuous increases in fossil energy prices have led to stronger legislation concerning energy utilisation efficiency in the domestic heating sector. Accordingly, German gas utilities and the key European manufacturers of gas heating appliances have teamed up to form what is known as the “Gas Heat Pump Initiative” to introduce new heating technologies, which are capable of achieving an incremental improvement of gas utilisation efficiency compared to that delivered by gas condensing technology. This article provides a brief introduction to these innovative heating appliances and a presentation of the gas heat pump initiative

Synergistic interactions between plant extracts, some antibiotics and/or their impact upon antibiotic-resistant bacterial isolates

In this study, the antibacterial activities of medicinal plant extracts [of Rehum palmatum (R), Cassia angustifolia (C), Glycyrrhiza glabra (G), Chichorium intybus (Ch), and Matricaria chamomilla (M)], on antibiotic- resistant isolates (Staphylococcus aureus and Alcaligenes xylosoxidans) collected from clinical samples, pharmaceutical products, and different hospital water drains was detected (single, combined extract). This investigation shows that the extracts of G. glabra, R. palmatum and C. angustifolia and their combination with the selected antibiotic, variously inhibited the growth of the bacterial isolates. The methanol extraction ingredients recorded the maximum Inhibition Zone Diameter (mm IZD); 18.8/R, 12.6/C and 12.8/G plants. Prominent synergism occurred between plants extract mixture and Gentamycin, Ceftasidine, Tobramycin, Cefoperazone and Spictinomycin (GD) antibiotics. Rehum plant extract was the most potent antibacterial agent against S. aureus and A. xylosoxidans, especially when extracted with methanol solvent.Keywords: Synergism, antagonism, Glycyrrhiza glabra, Rehum palmatum, Cassia angustifolia, antibioticresistant bacteria, Staphylococcus aureus, Alcaligenes xylosoxidans, hospitals drain, clinical samples, volatile oils, total flavonoidsAfrican Journal of Biotechnology Vol. 12(24), pp. 3835-384

Shifts in Treatment of Women’s Rights in Egyptian Media

Egyptian media’s treatment of introducing the khula law which gave Egyptian women unprecedented divorce rights was overwhelmingly negative. However, the treatment of other more recent legal changes that granted women more rights has on the contrary been overwhelmingly positive. This paper analyzes this change and considers whether it can be explained using the theory that media’s criticism of government policy is in reality a consequence of and reflects divisions within the political elite regarding the issue at stake. It also analyzes the discourse utilized by feminists to call for women’s rights and argues that Egyptian feminists are drastically shifting the discourse that they utilize to call for women’s rights