Long-term lidar observations of the gravity wave activity near the mesopause at Arecibo

Autor: X. Yue, J. S. Friedman, Q. Zhou, X. Wu, J. Lautenbach

Publikováno v: Atmospheric Chemistry and Physics, Vol 19, Pp 3207-3221 (2019)

Using 11-year-long K Doppler lidar observations of temperature profiles in the mesosphere and lower thermosphere (MLT) between 85 and 100 km, conducted at the Arecibo Observatory, Puerto Rico (18.35∘ N, 66.75∘ W), seasonal variations of mea

Externí odkaz: https://doaj.org/article/1120ccc3d88b49348bf04cdb6965ac98

ON AN INTEGRAL OF -BESSEL FUNCTIONS AND ITS APPLICATION TO MAHLER MEASURE

Autor: George Anton, J. S. Friedman, Shelby Stinson, Jessen A. Malathu

Publikováno v: Bulletin of the Australian Mathematical Society. 105:223-235

Cogdell et al. [‘Evaluating the Mahler measure of linear forms via Kronecker limit formulas on complex projective space’, Trans. Amer. Math. Soc. (2021), to appear] developed infinite series representations for the logarithmic Mahler measure of a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a2a74aef28fe1c3392da570f8eb37a68
https://doi.org/10.1017/s0004972721000484

Development of a photonics outreach and education program through partnerships at Universidad Metropolitana for Puerto Rico and the IYL

Autor: R. Gordillo, J. S. Friedman, E. Trujillo, A. Diaz, R. Saltares

Publikováno v: SPIE Proceedings.

As the only photonics center in Puerto Rico and the Caribbean we have developed since 2014 and for the International Year of Light 2015 a comprehensive education and outreach program. We show how we have successfully reached an audience of more than

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac3a82ca3cd5b618717235863266f375
https://doi.org/10.1117/12.2238039

Prevalence of Behavioral Risk Factors in Two American Indian Populations in Montana

Autor: Steven D. Helgerson, Charles W. Warren, J. S. Friedman, E. LaMere, Howard I. Goldberg, L. L. Oge, D. D. Pepion

Publikováno v: American Journal of Preventive Medicine. 7:155-159

Despite great improvements in recent decades, the health status of American Indians continues to lag behind that of other Americans. Continued health improvement will depend largely on changes in individual behavior. However, few data exist on health

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4f18da9fcd8538b77a3ea89d15c1cde3
https://doi.org/10.1016/s0749-3797(18)30932-2

Metal layers at high altitudes: A possible connection to meteoroids

Autor: J. S. Friedman, J. Höffner

Publikováno v: Atmospheric Chemistry and Physics Discussions
Atmospheric Chemistry and Physics Discussions, European Geosciences Union, 2004, 4 (1), pp.399-417

In the past, many studies have been carried out to demonstrate the influence of meteoroids on the atmospheric metal layer, observed roughly in the altitude range 80–105 km. Even with the capability of present day resonance lidars to measure metal d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b87c9d33bd3058514b27349ffeb12b5
https://doi.org/10.5194/acpd-4-399-2004