SOME ASPECTS OF SHORE PROTECTION IN BOSTON HARBOR

Shore protection by oblique seabed bars

Shore protection by small seabed bars was once considered possible because seafloor undulations strongly reflect surface waves of twice the wavelength by the so-called Bragg resonance mechanism. The idea, however, proved “unreliable” when Yu & Mei (J. Fluid Mech., vol. 404, 2000, pp. 251-268) showed that a patch of longshore seabed bars adjacent to a reflective shore could result in larger wave...

Effect of bioirrigation on sediment-water exchange of methylmercury in Boston Harbor, Massachusetts.

Coastal marine sediments are important sites of methylmercury (MMHg) production, and dissolved efflux provides an important source of MMHg to near-shore, and possibly offshore, water columns and food webs. We measured the flux of MMHg across the sediment-water interface at four stations in Boston Harbor that span a range of infaunal population densities and bioirrigation intensities. At each st...

Some Ecological Aspects of Malaria Vectors in Saravan Area, Iran

Background & Aims of the Study: The aim of this study was to determine the ecology of malaria vectors in order to select the vector control masseur in the future. This study was carried out on trend of malaria cases and malaria vectors in Saravan county, Sistan & Baluchestan Province, Iran. Materials & Methods: The adult mosquitoes were collected by standard Pyrethrum space spray colle...

Some Aspects of Text-book Development in Azerbaijan

Cytological study of vacuolated cells and other aberrant hepatocytes in winter flounder from Boston Harbor.

A light and electron microscopic study of hepatocytes in winter flounder (Pseudopleuronectes americanus) from Boston Harbor has revealed 3 types of abnormal parenchymal cells in the livers of these fish. (a) Electron-lucent or "light" appearing hepatocytes had the following cytological features indicative of necrosis and cell death: an overall edematous (hydropic) appearance; swollen nuclei wit...