Trelew – Voix croisées. Argentine, 1972

1972 , Volume , Issue Nov-1972

It makes swept insertion and return loss measurements simultaneously, overa wide frequency range. TO THE MICROWAVE ENGINEER, an instru ment that measures insertion and return loss simultaneously, over a broad band, would be as useful as is the voltmeter to other electronic special ists, provided it is made practical in several im portant ways. • Its measurements must really refer to the micro...

Eisenstadt v. Baird (1972)

Prior to 1971, women had some difficulty obtaining contraceptive materials due to a law prohibiting the distribution of contraceptives by anyone other than a registered physician or registered pharmacist. This limited access to contraceptives had an impact on women?s reproductive rights [6] and it was the Supreme Court case Eisenstadt v. Baird (1972) that helped bring the issue into the public ...

Themes from 1972

Although 1972 was the year that Winograd published his now classic natural language Study of the blocks world, that fact had not yet penetrated to the ACL. At that time people with AI computational interests were strictly in a minority in the association and it was a radical move to appoint Roger Schank as program chairman for the year's meeting. That was also the year that we didn't have a pre...

Trap-mulching Argentine ants.

Argentine ant, Linepithema humile (Mayr), management is constrained, in large part, by polydomy where nestmates are distributed extensively across urban landscapes, particularly within mulch. Management with trap-mulching is a novel approach derived from trap-cropping where ants are repelled from a broad domain of nest sites to smaller defined areas, which are subsequently treated with insectic...

James Norman Davidson, 1911-1972.