FIELD SANITARY ORDERS

Large orders in strong-field QED

We address the issue of large-order expansions in strong-field QED. Our approach is based on the one-loop effective action encoded in the associated photon polarisation tensor. We concentrate on the simple case of crossed fields aiming at possible applications of high-power lasers to measure vacuum birefringence. A simple next-to-leading order derivative expansion reveals that the indices of re...

Sanitary Notes in Poona

j I AM anxious to bring to professional notice a remarkable ^ instance of the seemingly mysterious generation of fever and cholera in certain localities, the present case being one in which these two scourges have chosen, what I maintain to be, one of their most favorite breeding dens. Ir. is not the ruined, weed-covered, and slimy tank, nor the foul looking pond put to foul uses and surrounded...

Sanitary Reforms in India

The reconstitution of a special Imperial Sanitary Department is undoubted]}7 an important step as emphasising the determination of the Indian Government to pay special attention to sanitary matters and obtain the best available advice regarding subjects affecting public health. The best feature of the new order of things is, I think, the resolve to organise research laboratories in the chief ce...

Sanitary Sewage Lift Stations

The lift station is becoming increasingly common as a component of the sewerage systems of Indiana. Cities and towns that have operated for years without the necessity of a lift station (other than one integral with sewage treatment plant) are finding it necessary to include a lift station in plans for extension of sewers. Those cities and towns which have not yet found it necessary to include ...

Practical Sanitary Science