in order to study the effects of ascorbic acid as an important antioxidant reducing salinity damage, an experiment was conducted on two althernantera genotypes (“entire leaf” and “undulated leaf”) at research greenhouse of shahid chamran university in 2013. concentrations of 0, 0.5 and 1 mm of ascorbic acid were sprayed weekly on plants grown under 0, 30, 60, 90 mm nacl. the experiment was carr...

The proton exchange membrane fuel cell (PEMFC) technology has drawn considerable attention during past two decades and has potential for automotive applications due to high energy density and low impact on environments [1, 2]. Nevertheless, commercialization of fuel cell vehicles still depends on achieving higher volumetric power density and specific power in order to compete with traditionally...

he goal of the ApL solar physics research program is to deepen our understanding of the fundamental physical processes on the sun. For this purpose we have built and tested innovative solar instruments and telescopes such as the Flare genesis experiment and the solar bolometric imager. This article briefly describes the instrumentation program and then focuses on the scientific advances achieve...

Truss structures are widely used for the support of structural loads in applications where minimum mass solutions are required. Their nodes are normally constructed to resist rotation to maximize their stiffness under load. A multi-link node concept has recently been proposed that permits independent rotation of tetrahedral trusses linked by such a joint. High authority shape morphing truss str...

The axostyles of the flagellates Oxymonas, Saccinobaculus, and Notila are large ribbon-shaped structures which undulate actively in the cytoplasm. The form of their movements is described and illustrated. Axostyles consist of regular arrays of longitudinal fibres, the number of which varies between 100 and 5000 in different species. The fibres are about 240 A in diameter, apparently hollow, reg...

This study investigated the presence of microplastics in two common edible bivalves Vietnam, hard clam (Meretrix lyrata) and undulate venus (Paratapes undulatus), from estuaries Da Nang city. Microplastics were detected both species with relatively high concentrations—from 2.17 ± 0.43 to 2.38 1.28 items g−1 clams 4.71 2.15 5.36 2.69 clams. Fibers most dominant form microplastic clams, a proport...