We present results from the first directed search for nontensorial gravitational waves. While general relativity allows for tensorial (plus and cross) modes only, a generic metric theory may, in principle, predict waves with up to six different polarizations. This analysis is sensitive to continuous signals of scalar, vector, or tensor polarizations, and does not rely on any specific theory of gravity. After searching data from the first observation run of the advanced LIGO detectors for signals at twice the rotational frequency of 200 known pulsars, we find no evidence of gravitational waves of any polarization. We report the first upper limits for scalar and vector strains, finding values comparable in magnitude to previously published limits for tensor strain. Our results may be translated into constraints on specific alternative theories of gravity.

No abstract

A FEW YEARS AGO, hardly an important or good book about the human problems of the land was appearing. Now, to judge by the books and articles, we see that a new and very intelligent interest has been awakened. Publications are devoted to homestead and subsistence projects, such as Ralph Borsodi's and Monsignor Ligutti's, to the great and lasting agrarianism of the South, to an outright decentralization, to cooperatives as affecting rural and suburban life, and especially to the effective and democratic cooperatives of Nova Scotia.

Aristotle'S attitude and procedure in dealing with moral standards suggest that he assumed the following points: a) That he was speaking of something real and given; b) to be discovered and formulated and, if possible, applied; c) that in fact, standards satisfactory for human life — at least satisfactory and perhaps unsurpassable — had already been embodied in Grecian life and art and thought; and if this is the case, then in regard to moral standards, as in regard to many problems, Aristotle is a preserver and savior rather than an innovator and is like “prudence” as he delineates it; d) that if there is a divine source of these Grecian known and lived standards, these are just and true; if there is not, or if we do not know whether there is, they remain just and true; in any case, at least some of them are “by nature.”

No abstract