Hillslopes record the growth and decay of landscapes

Earth's surface archives the combined history of tectonics and erosion, which tend to roughen landscapes, and sediment transport and deposition, which smooth them. We analyzed hillslope morphology in the tectonically active Dragon’s Back Pressure Ridge in California, United States, to assess whether tectonic uplift history can be reconstructed using measurable attributes of hillslope features within landscapes. Hilltop curvature and hillslope relief mirror measured rates of vertical displacement caused by tectonic forcing, and their relationships are consistent with those expected when idealizing hillslope transport as a nonlinear diffusion process. Hilltop curvature lags behind relief in its response to changing erosion rates, allowing growing landscapes to be distinguished from decaying landscapes. Numerical modeling demonstrates that hillslope morphology may be used to infer changes in tectonic rates

Erosion, Geological History, and Indigenous Agriculture: A Tale of Two Valleys

Irrigated pondfields and rainfed field systems represented alternative pathways of agricultural intensification that were unevenly distributed across the Hawaiian Archipelago prior to European contact, with pondfields on wetter soils and older islands and rainfed systems on fertile, moderate-rainfall upland sites on younger islands. The spatial separation of these systems is thought to have contributed to the dynamics of social and political organization in pre-contact Hawai’i. However, deep stream valleys on older Hawaiian Islands often retain the remains of rainfed dryland agriculture on their lower slopes. We evaluated why rainfed agriculture developed on valley slopes on older but not younger islands by comparing soils of Pololū Valley on the young island of Hawai’i with those of Hālawa Valley on the older island of Moloka’i. Alluvial valley-bottom and colluvial slope soils of both valleys are enriched 4–5-fold in base saturation and in P that can be weathered, and greater than 10-fold in resin-extractable P and weatherable Ca, compared to soils of their surrounding uplands. However, due to an interaction of volcanically driven subsidence of the young island of Hawai’i with post-glacial sea level rise, the side walls of Pololū Valley plunge directly into a flat valley floor, whereas the alluvial floor of Hālawa Valley is surrounded by a band of fertile colluvial soils where rainfed agricultural features were concentrated. Only 5% of Pololū Valley supports colluvial soils with slopes between 5° and 12° (suitable for rainfed agriculture), whereas 16% of Hālawa Valley does so. The potential for integrated pondfield/rainfed valley systems of the older Hawaiian Islands increased their advantage in productivity and sustainability over the predominantly rainfed systems of the younger islands

The worsening impacts of land reclamation assessed with Sentinel-1: The Rize (Turkey) test case

Massive amounts of land are being reclaimed to build airports, new cities, ports, and highways. Hundreds of kilometers are added each year, as coastlines are extended further out to the sea. In this paper, this urbanization approach is monitored by Persistent Scatterer Interferometry (PSI) technique with Sentinel-1 SAR data. The study aims to explore this technology in order to support local authorities to detect and evaluate subtle terrain displacements. For this purpose, a large 3-years Sentinel-1 stack composed by 92 images acquired between 07/01/2015 to 27/01/2018 is employed and stacking techniques are chosen to assess ground motion. The test site of this study, Rize, Turkey, has been declared at high risk of collapse and radical solutions such as the relocation of the entire city in another area are been taken into consideration. A media fact-checking approach, i.e. evaluating national and international press releases on the test site, is considered for the paper and this work presents many findings in different areas of the city. For instance, alerts are confirmed by inspecting several buildings reported by the press. Critical infrastructures are monitored as well. Portions of the harbor show high displacement rates, up to 1 cm/year, proving reported warnings. Rural villages belonging to the same municipality are also investigated and a mountainous village affected by landslide is considered in the study. Sentinel-1 is demonstrated to be a suitable system to detect and monitor small changes or buildings and infrastructures for these scenarios. These changes may be highly indicative of imminent damage which can lead to the loss of the structural integrity and subsequent failure of the structure in the long-term. In Rize, only a few known motion-critical structures are monitored daily with in-situ technologies. SAR interferometry can assist to save expensive inspection and monitoring services, especially in highly critical cases such as the one studied in this paper

Understanding the Motivational Factors for College Students to Remain Non-Smokers

Cigarette smoking has long been recognized as a negative health behavior. Numerous studies have linked cigarette smoking to cancer, heart and circulatory problems, lung disease, and an array of other health issues, leading to lower quality of life and premature death. There is a wealth of knowledge relating to the negative outcomes of smoking behavior (USDHHS, 2010) and the factors leading to smoking behavior among adolescents (USDHHS, 2012). However, researchers have studied factors leading to nonsmoking behavior much less. The present study uses the Theory of Planned Behavior to understand the motivational factors that lead to a student\u27s nonsmoking behavior, with the hypotheses that: (1) non-smokers will have the most favorable intention to not smoke; (2) non-smokers will have the most favorable attitudes toward non-smoking; (3) non-smokers will have the most favorable social perception of non-smoking; and (4) non-smokers will perceive the most control over their non-smoking

Criminal Procedure—Venue—Perjury

Criminal Procedure—Venue—Perjury (State v. Rother, Mont. 1956

Interview with John Hilley by Brien Williams

Biographical NoteJohn L. Hilley was born on October 22, 1947, to Dorothy and William Hilley in Tampa, Florida. His father was in the Air Force, so his family moved frequently. In eleventh grade he attended Phillips Academy in Andover, Massachusetts, and went on to Princeton University. He taught for a few years, then returned to Princeton to earn a Ph.D. in economics. He taught at Lehigh University, receiving tenure, then moved to Washington, D.C. He began work at the Congressional Budget Office and then transitioned to the Senate Budget Committee, becoming staff director under Senator Sasser. In January of 1991, he became Senator Mitchell’s chief of staff and continued in that role until Mitchell’s retirement in 1995. He subsequently served briefly as chief counsel to Senator Daschle in the Majority Leader’s Office. From 1996 to 1998, he worked as senior advisor and head of legislative affairs for President Clinton. He has been the executive vice president of the National Association of Securities Dealers and the chairman and CEO of NASDAQ International. SummaryInterview includes discussion of: Hilley’s education; work at the Congressional Budget Office and the Senate Budget Committee; working for Senator Sasser; the role of the budget in legislation; Mitchell’s mental abilities; the majority leadership race; Mitchell’s work ethic and dedication to Maine; the different elements of the majority leader’s work; the activities of the Maine staff, the floor staff, the whip operation, the Senate administrative staff, and the Senate parliamentarian; Mitchell’s and Dole’s agreement to no surprises; the difference between Mitchell and Byrd as leader; the transition from Martha Pope to Hilley as chief of staff and what the chief of staff role entailed; the majority leader’s working with the Democratic National Committee and the Democratic Senatorial Campaign Committee; key senators with whom Mitchell built relationships; Mitchell and Senator Sarbanes sharing cucumber sandwiches; Mitchell’s even-keeled temperament; the staff’s access to Mitchell; staff meetings; when Hilley used Mitchell’s hideaway to take naps after an illness; a maneuver they used to defeat a capital gains tax cut and Senator Bentsen’s loyalty to Mitchell; the first Iraq War; the change in the majority leader’s role when President Clinton came into office; the Clinton administration’s stimulus bill, the subsequent deficit reduction package and how it brought out the partisan divide in the Senate; the Clinton administration’s initial blunders; Hillary Clinton’s health care package; the 1994 crime bill; Mitchell’s relationship with President Clinton and communication with the White House; Mitchell’s office’s relationship with the House; Mitchell’s style of running meetings; Mitchell’s dealings with the press; the budget and the meetings at Andrews Air Force Base; Senator Byrd’s giving John Sununu a dressing down at Andrews Air Force Base; Mitchell’s retirement; Senator Daschle as Mitchell’s successor; Mitchell’s humor; Hilley’s wish that Mitchell had been president; Senator Dole’s humor; the present day lack of moderates in both parties; Harry Reid’s job today and the Obama administration’s endeavors; how the question of who holds the presidency is inextricably linked to what came before

The Warren S. Henderson Wetlands Protection Act of 1984: Enough Protection?

With the enactment of the Warren S. Henderson Wetlands Protection Act of 1984 the Florida Legislature took a first step toward comprehensive wetlands protection, joining seven other states that have enacted comprehensive wetlands legislation

Contesting the vision: Mahathirism, the power bloc and the crisis of hegemony in Malaysia

Abstract available: p.

Criminal Procedure—Venue—Perjury

Criminal Procedure—Venue—Perjury (State v. Rother, Mont. 1956