Zobrazeno 1 - 7
of 7
pro vyhledávání: '"J. A. Kleinfeld"'
Autor:
J. A. Kleinfeld, A. D. Streater
Publikováno v:
Physical Review A. 53:1839-1853
We describe theoretical and experimental investigations of steady-state gain without population inversion that can occur on the ${\mathit{D}}_{1}$ transition of potassium, upon strong cw-laser excitation of the ${\mathit{D}}_{2}$ transition. A Raman-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1945f86ec5bc3a83599cef5b402f5e51
https://doi.org/10.1103/physreva.53.1839
https://doi.org/10.1103/physreva.53.1839
Autor:
J. A. Kleinfeld, A. D. Streater
Publikováno v:
Physical Review A. 49:R4301-R4304
We report steady-state gain due to coherence effects in a potassium-helium mixture, for strong pumping near the ${\mathit{D}}_{2}$ line and probing near the ${\mathit{D}}_{1}$ line. The absorption-gain spectra are in good agreement with a four-level
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1a0e24dd25bc033009553f8e58fcde1
https://doi.org/10.1103/physreva.49.r4301
https://doi.org/10.1103/physreva.49.r4301
Autor:
A. D. Streater, J. A. Kleinfeld
Publikováno v:
Applied Physics Letters. 62:3077-3079
Light‐controlled deposition of potassium atoms onto a glass surface by light‐induced drift (LID) is demonstrated. The collection of atoms by wave‐front curvature is found to be important for maximizing the deposition rate. The light control of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9330ad6eb5308297aa981ef7360bbc60
https://doi.org/10.1063/1.109140
https://doi.org/10.1063/1.109140
Autor:
J. S. Kleinfeld
Publikováno v:
The Journal of Social Psychology. 92:3-9
Summary This study examined the effects of a nonverbally warm versus a nonverbally neutral impersonal teaching style on the learning, question answering, and question asking of 20 white and 20 Eskimo students. Each student attended both a warm and a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d643af3b361d75da7bb6d6ae2542f8fb
https://doi.org/10.1080/00224545.1974.9923065
https://doi.org/10.1080/00224545.1974.9923065
Autor:
J. S. Kleinfeld
Publikováno v:
Review of Educational Research. 43:341-359
The furor unleashed by Jensen's (1969) suggestion of a genetic explanation for the lower performance of Blacks on intelligence tests has led to substantial doubt about the social value of research on racial differences in cognitive abilities. Using t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94fd67a3fe65d32471047deb6e074a4b
https://doi.org/10.3102/00346543043003341
https://doi.org/10.3102/00346543043003341
Autor:
J. S. Kleinfeld
Publikováno v:
The Journal of Educational Research. 67:51-52
The mute withdrawal typical of village Indian and Eskimo students who have been integrated into the public schools is a central concern of many teachers. Ethnographic research suggests that these students’ silence may derive from their perception o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9bba762b1dc28b6d08d4282158ad066
https://doi.org/10.1080/00220671.1973.10884556
https://doi.org/10.1080/00220671.1973.10884556
Autor:
J. S. Kleinfeld
Publikováno v:
The Journal of Social Psychology. 91:149-150
(1973). Effects of Nonverbally Communicated Personal Warmth on the Intelligence Test Performance of Indian and Eskimo Adolescents. The Journal of Social Psychology: Vol. 91, No. 1, pp. 149-150.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44a281737998ea314313dfb8f8763a5d
https://doi.org/10.1080/00224545.1973.9922656
https://doi.org/10.1080/00224545.1973.9922656