In multi-user OFDMA systems, adaptive resource allocation has been identified as one of the key technologies to have more flexibility and higher efficiency. Several adaptive subcarrier allocation algorithms with the objective to maximize spectral efficiency or fairness have been proposed. However, quality of service (QoS) requirement of each user may not be supported. Some algorithms considerin...

Diarrhoeal diseases and enteric infections are major causes of morbidity and mortality in the developing countries. Shigellosis was sixth in the rank of death caused by infectious disease in China. Present study assess the patterns of antimicrobial susceptibility and mutations in marA genes of Shigella isolates and its association. One hundred isolates of Shigella spp were tested to evaluate th...

The annual migration of ∼1.2 million wildebeest (Connochaetes taurinus) through the Serengeti Mara Ecosystem is the largest remaining overland migration in the world. One of the most iconic portions of their migration is crossing of the Mara River, during which thousands drown annually. These mass drownings have been noted, but their frequency, size, and impact on aquatic ecosystems have not be...

Many factors contribute to misdiagnosis and underreporting of infectious zoonotic diseases in most sub-Saharan Africa including limited diagnostic capacity and poor knowledge. We assessed the knowledge, practices and attitudes towards spotted fever group rickettsioses (SFGR) and Q fever amongst local residents in Laikipia and Maasai Mara in Kenya. A semi-structured questionnaire was administere...

In Escherichia coli K-12, amplifiable resistance to tetracycline, chloramphenicol, and other unrelated antibiotics was mediated by at least four spatially separated loci. Tetracycline-sensitive mutants were isolated by Tn5 insertional inactivation of an amplified multiply resistant strain. One of these, studied in detail, showed coordinate loss of expression of all other resistance phenotypes. ...

We describe experiments aimed at establishing whether circular single-stranded DNAs can form promoters for bacterial transcription from small folded motifs. In vitro selection experiments were carried out on circular 103-nt DNA libraries encoding 40-nt randomized sequences as well as self-processing hammerhead ribozymes. Rounds of rolling circle transcription, reverse transcription-PCR, and rec...

1 School of Informatics and Applied Mathematics, University Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia Digital Graphic and Media (DiGM) Research Group, Faculty of Computer and Mathematical Sciences, University Technology MARA Johor Branch, Pasir Gudang Campus, Johor, Malaysia UTM ViCubeLab Research Group, Faculty of Computing, University Technology Malaysia, Johor, Malaysia 4 D...

Auditory evoked potentials reveal early perceptual effects of distal prosody on speech segmentation Mara Breen, Laura C. Dilley, J. Devin McAuley & Lisa D. Sanders To cite this article: Mara Breen, Laura C. Dilley, J. Devin McAuley & Lisa D. Sanders (2014) Auditory evoked potentials reveal early perceptual effects of distal prosody on speech segmentation, Language, Cognition and Neuroscience, 2...

In January 2012, a case of Human African Trypanosomiasis (HAT) has been identified in Germany in a traveller returning from the Masai Mara area in Kenya. The 62-year-old man had travelled to the Masai Mara game park from 18 to 19 January 2012 and developed fever on 28 January. The infection with Trypanosoma brucei rhodesiense was confirmed by laboratory testing three days hereafter.

The US Global Change Research Program has initiated a National Assessment of potential impacts from climate change. This paper summarizes the National Assessment process, and the Mid-Atlantic Regional Assessment (MARA) as an example of how the process is being implemented. At the national level, 5 sectoral working groups are assessing impacts on agriculture, forests, freshwater resources, coast...