Walking aids such as rollators help a lot of individuals to maintain mobility and independence. While these devices clearly improve balance and mobility they also lead to increased risk of falling accidents. With an increasing proportion of elderly in the population, there is a clear need for improving these devices. This paper describes ongoing work on the development of ROAR an intelligent ro...

Aloe vera (Aloe barbadensis) is one of the herbal remedies with a longstanding history for its curative and therapeutic properties for various ailments. Till date more than 75 active components with medicinal value have been identified in Aloe vera and have been suggested to possess synergistic action in alleviating the diseased conditions (Scalbert and Williamson, 2000; Hamman, 2008; Nejatzade...

a r t i c l e i n f o Little is known about the distribution and dynamics of dissolved organic nitrogen (DON) within Arctic Ocean surface waters, though seasonal inputs from both rivers and marine phytoplankton production are likely important. Here we combine multiple datasets to provide the first quasi-synoptic view of DON concentrations in the summertime Arctic Ocean Polar Surface Layer (PSL)...

Based on the experience of 2011 Great East Japan Earthquake and following tsunami, this study aims to develop effective analytical tools that can comprehensively be applied buildings under multi-phase hazardous loads such as seismic motion, fluid force, debris impact. Simulations by two kinds were conducted. First, a structural collapse analysis steel frame building successive applications vary...

The major aim of this study was to evaluate the relationships between the rates of microbial activities (phytoplankton primary production, bacterial secondary production, bacterial utilization of organic matter, enzymatic activities, protozoan grazing on bacteria), bacterial numbers, and dissolved organic carbon concentrations and the trophic state index (TSI) of lakes in the upper trophogenic ...

Optical sensors of ultrasound are a promising alternative to piezoelectric techniques, as has been recently demonstrated in the field of optoacoustic imaging. In medical applications, one of the major limitations of optical sensing technology is its susceptibility to environmental conditions, e.g. changes in pressure and temperature, which may saturate the detection. Additionally, the clinical ...

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Small, aloricate ciliates with equivalent spherical cell diameters ~20 km (biovolume <4,000 pm3) compose, on average, 4-57% of the total biomass of heterotrophic (apochlorotic) nanoplankton in diverse marine systems. Biomass production of nanoplanktonic ciliates in a southeastern U.S. estuary was also a significant part of the total production of heterotrophic microprotozoa. During summer in a ...

Despite the fact that luxuriant flora and suitable climatic conditions exist in Pakistan for propagation of Drosophila species, little is known about Drosophila fauna of Pakistan. A few people have initiated the work in this field in Pakistan. With a view to surveying Drosophila fauna of whole Pakistan, a project was begun during 1990-1992 in the Department of Biological Sciences, Quaid-e-Azam ...