Letter from R[obert] U[nderwood] Johnson to John Muir, 1897 Feb 6.

R. W. GILDER, EDITOR.R. U. JOHNSON,ASSOCIATE EDITOR.C. C. BUEL,ASSISTANT EDITOR.February 6th, 1897My dear Muir:-The inclosed letter from Senator Perkins will interest you. Will you please consider it confidential, though it is not marked personal . It seems to me that it is well for the friends of recession to know that the Senator is with us.Yours Faithfully R. U. Johnson,Mr. John MuirMartinex, Cal.02235 United States Senate,WASHINGTON, D. C, Feb 3d. 1897.R.U. Johnson. Esq., Century Magazine, New York City, N. Y.My dear Sir:-I am in receipt of yours of the 1st inst., relating to the transfer of the Yosemite Reservation to the United States, I agree with you perfectly with respect to the advisability of such action, but I am of the opinion that the State Legislature should take action before the matter is brought before Congress. I should not feel at liberty to bring the matter to the notice of the Senate unless authorized by the California Legislature. I therefore suggest that you write to Hon. Warren Olney, 101 Sansome St. San Francisco, who is a lawyer and a member of the Sierra Club, and solicit his aid in securing proper action in California.Yours very truly,Geo [George] C. Perkins0223

Report of ESCOP Subcommittee on Domestic and International Markets and Policy

International Relations/Trade,

Tracing the Origins and Evolution of Small Planets using Their Orbital Obliquities

We recommend an intensive effort to survey and understand the obliquity distribution of small close-in extrasolar planets over the coming decade. The orbital obliquities of exoplanets--i.e., the relative orientation between the planetary orbit and the stellar rotation--is a key tracer of how planets form and migrate. While the orbital obliquities of smaller planets are poorly explored today, a new generation of facilities coming online over the next decade will make such observations possible en masse. Transit spectroscopic observations with the extremely large telescopes will enable us to measure the orbital obliquities of planets as small as $\sim2R_{\oplus}$ around a wide variety of stars, opening a window into the orbital properties of the most common types of planets. This effort will directly contribute to understanding the formation and evolution of planetary systems, a key objective of the National Academy of Sciences' Exoplanet Science Strategies report.Comment: Submitted to the Astro2020 call for science white papers. 7 pages, 2 figure

Global Properties of Neutral Hydrogen in Compact Groups

Compact groups of galaxies provide a unique environment to study the evolution of galaxies amid frequent gravitational encounters. These nearby groups have conditions similar to those in the earlier universe when galaxies were assembled and give us the opportunity to witness hierarchical formation in progress. To understand how the compact group environment affects galaxy evolution, we examine the gas and dust in these groups. We present new single-dish GBT neutral hydrogen (HI) observations of 30 compact groups and define a new way to quantify the group HI content as the HI-to-stellar mass ratio of the group as a whole. We compare the HI content with mid-IR indicators of star formation and optical [g-r] color to search for correlations between group gas content and star formation activity of individual group members. Quiescent galaxies tend to live in HI-poor groups, and galaxies with active star formation are more commonly found in HI-rich groups. Intriguingly, we also find "rogue" galaxies whose star formation does not correlate with group HI content. In particular, we identify three galaxies (NGC 2968 in RSCG 34, KUG 1131+202A in RSCG 42, and NGC 4613 in RSCG 64) whose mid-IR activity is discrepant with the HI. We speculate that this mismatch between mid-IR activity and HI content is a consequence of strong interactions in this environment that can strip HI from galaxies and abruptly affect star-formation. Ultimately, characterizing how and on what timescales the gas is processed in compact groups will help us understand the interstellar medium in complex, dense environments similar to the earlier Universe.Comment: Accepted to A

Socioeconomic indicators of heat-related health risk supplemented with remotely sensed data

<p>Abstract</p> <p>Background</p> <p>Extreme heat events are the number one cause of weather-related fatalities in the United States. The current system of alert for extreme heat events does not take into account intra-urban spatial variation in risk. The purpose of this study is to evaluate a potential method to improve spatial delineation of risk from extreme heat events in urban environments by integrating sociodemographic risk factors with estimates of land surface temperature derived from thermal remote sensing data.</p> <p>Results</p> <p>Comparison of logistic regression models indicates that supplementing known sociodemographic risk factors with remote sensing estimates of land surface temperature improves the delineation of intra-urban variations in risk from extreme heat events.</p> <p>Conclusion</p> <p>Thermal remote sensing data can be utilized to improve understanding of intra-urban variations in risk from extreme heat. The refinement of current risk assessment systems could increase the likelihood of survival during extreme heat events and assist emergency personnel in the delivery of vital resources during such disasters.</p

Nondestructive Evaluation of Residual Stress in Anisotropic Materials

The specific focus on anisotropic materials in the research was addressed in a manner which was primarily analytical. All of the experiments involving materials with substantial elastic or plastic anisotropy indicated that the materials in question exhibited a level of acoustoelastic response which was at or below the limit for useful stress evaluation. Nevertheless, the analysis performed indicates that if an experimental system is built which allows determination of the velocity variation roughly an order of magnitude more precisely than is possible with the system used in this work, the complete state of residual stress may be obtained, despite the presence of anisotropy. This report consists of a detailed description of the technique and experimental system proposed for the evaluation of residual stress states. The underlying analytical developments are reviewed, and a numerical investigation into the application of this approach for anisotropic materials is presented. It is shown that an accurate assessment of the complete residual stress state may be obtained even in cases of extreme anisotropy. Finally, an experimental investigation of the technique is presented in which the experimentally determined stress state is compared with that predicted numerically. It is shown that the two estimates of stress agree well for the material involved. 12 refs., 5 figs., 1 tab

Navigating the New Workplace: Technology, Millennials, and Accelerating HR Innovation

This paper brings together the latest thinking in research and practice on workplace change and the information technology tools and technologies that enable, and, in some cases, drive that change. We address the shifts in global business that focus leadership on innovation, the changing demographics of employee populations, and how these changes impact talent management and emerging methods and tools that enable HR professionals to be more effective and bring new value to their business enterprises. We detail emergent scientific research on how the millennial generation has transformed the workplace. We describe effective methods, tools, and technologies from actual workplace practice to provide practical insights that one can immediately use in a human resource management context. We also present new hypotheses and recommendations for how to leverage the various change scenarios