General relativity includes a dynamical spacetime, so it is difficult to see how to identify the conserved energy and momentum. Noether's theorem allows these quantities to be determined from a Lagrangian with translation invariance, but general covariance makes translation invariance into something of a gauge symmetry. The energy and momentum derived within general relativity by Noether's presecriptions do not make a real tensor for this reason. Einstein argued that this is true for fundamental reasons, because the gravitational field could be made to vanish by a choice of coordinates. He maintained that the non-covariant energy momentum pseudotensor was in fact the best description of the energy momentum distribution in a gravitational field. This approach has been echoed by Lev Landau and Evgeny Lifshitz, and others, and has become standard. The use of non-covariant objects like pseudotensors was heavily criticized in 1917 by Erwin Schrodinger and others. 

Question: "When did the standard approach to energy momentum become criticized?"

Response: "1971"

A: no


Johnnie had a set of small volumes of English verse, extensively annotated by his own hand, which Stoddard had brought to her early in their acquaintance, leaving it with her more as a gift than as a loan.  She kept these little books after all the others had gone back.  She had read and reread them--cullings from Chaucer, from Spenser, from the Elizabethan lyrists, the border balladry, fierce, tender, oh, so human--till she knew pages of them by heart, and their vocabulary influenced her own, their imagery tinged all her leisure thoughts.  It seemed to her, whenever she debated returning them, that she could not bear it.  She would get them out and sit with one of them open in her hands, not reading, but staring at the pages with unseeing eyes, passing her fingers over it, as one strokes a beloved hand, or turning through each book only to find the pencilled words in the margins.  She would be giving up part of herself when she took these back.  Yet it had to be done, and one miserable morning she made them all into a neat package, intending to carry them to the mill and place them on Stoddard's desk thus early, when nobody would be in the office.  Then the children came in; Deanie was half sick; and in the distress of getting the ailing child comfortably into her own bed, Johnnie forgot the books.  Taking them in at noon, she met Stoddard himself. 

Question: "How did Johnnie feel when she finally decides to return the books to the office?"

Response: "Relieved"

A: no


Catherine V. "Ginny" Kilgore of Oxford, an attorney with North Mississippi Rural Legal Services, has been recognized for her dedication to serving the indigent. Kilgore - who oversees delivering legal services to the disabled and elderly in 39 north Mississippi counties - is recipient of the University of Mississippi School of Law's 2002 Public Service Award. The award was announced recently at a dinne r, held in Kilgore's honor and hosted by law school Dean Samuel M. Davis, who presented her with an engraved plaque. "Ginny Kilgore is a public servant in the truest sense," said Davis. "Her selection continues the tradition of this award in recognizing those who have labored in the trenches, with little or no compensation but with great professional and personal satisfaction in helping to bring justice and equality to those who need it most." "This award means a great deal to me," Kilgore said, pointing to others so honored. "The work of those who received the award before me has been so important; I feel very honored." After earning bachelor's and master's degrees in education and a few years teaching, Kilgore enrolled at the UM law school. Upon graduation in 1975, she entered private law practice in Oxford, joining NMRLS in 1978. Since then, she has earned promotions from managing attorney, senior attorney, then director of the Council on Aging project. Since 1990, she has worked in the Administrative Law Unit and Resource Development, and directed the Elder Law Project, serving the northern half of the state. She also is an adjunct professor in the UM law school's Civil Law Clinic. She held a similar post a few years ago in the school's Elder Law Clinic. Kilgore says she's found her niche. "I've always thought it was important to do work to help people. I really enjoy it. The issues I've dealt with through the years have been on the side of helping people maintain the basics of life - home, healt h care, jobs and family." She says her desire to serve others was sparked early, growing up in a single-parent home, aware that her widowed mother faced certain challenges as she supported her four children through public school and college. 

Question: "Who entered private law practice in Oxford, joining NMRLS in 1978?"

Response: "Kilgore"

A:
yes