Long-term shoreline retreat rates on Whidbey Island, Washington, USA

AbstractLong-term retreat rates of Puget Sound's unconsolidated sediment shorelines have been difficult to quantify, and little systematic research has been completed to constrain retreat in this area. We put forward a new application of cosmogenic 10Be exposure dating to assess long-term shoreline retreat on Whidbey Island, WA by dating lag boulders exposed on the shore platform as the shoreline erodes. Production of 10Be in shoreline boulders is modulated by both tidal submergence and topographic shielding from the retreating bluff. By modeling the combined effect of these variables on 10Be production, the timing of exposure can be determined and used to calculate long-term (103–104 yr) bluff retreat rates. In rare cases, retreat rates are underestimated due to inherited 10Be. Within the study area, average retreat rates ranged between 0 and 8 cm yr− 1. Our results demonstrate the utility of cosmogenic nuclides for determining long-term shoreline retreat rates in areas with thick sediment cover, where large numbers of samples can be collected, and where the pre-depositional history of the boulders is uncomplicated.

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The geologic history of seawater oxygen isotopes from marine iron oxides

Science ◽

10.1126/science.aaw9247 ◽

2019 ◽

Vol 365 (6452) ◽

pp. 469-473 ◽

Cited By ~ 24

Author(s):

Nir Galili ◽

Aldo Shemesh ◽

Ruth Yam ◽

Irena Brailovsky ◽

Michal Sela-Adler ◽

...

Keyword(s):

Iron Oxide ◽

Oxygen Isotope ◽

Iron Oxides ◽

Isotope Composition ◽

Geologic History ◽

Temperature Dependent ◽

Oxygen Isotope Fractionation ◽

History Of ◽

Sediment Cover

The oxygen isotope composition (δ18O) of marine sedimentary rocks has increased by 10 to 15 per mil since Archean time. Interpretation of this trend is hindered by the dual control of temperature and fluid δ18O on the rocks’ isotopic composition. A new δ18O record in marine iron oxides covering the past ~2000 million years shows a similar secular rise. Iron oxide precipitation experiments reveal a weakly temperature-dependent iron oxide–water oxygen isotope fractionation, suggesting that increasing seawater δ18O over time was the primary cause of the long-term rise in δ18O values of marine precipitates. The18O enrichment may have been driven by an increase in terrestrial sediment cover, a change in the proportion of high- and low-temperature crustal alteration, or a combination of these and other factors.

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The Congenital Heart Surgeons’ Society Registry of Anomalous Aortic Origin of a Coronary Artery: an update

Cardiology in the Young ◽

10.1017/s1047951115002061 ◽

2015 ◽

Vol 25 (8) ◽

pp. 1567-1571 ◽

Cited By ~ 20

Author(s):

Julie A. Brothers ◽

J. William Gaynor ◽

Jeffrey P. Jacobs ◽

Jeffrey A. Poynter ◽

Marshall L. Jacobs

Keyword(s):

Coronary Artery ◽

Congenital Heart ◽

Young Patients ◽

Current State ◽

Large Numbers ◽

Increased Risk ◽

Surgical History ◽

History Of ◽

Children And Young Adults

AbstractThe anomalous aortic origin of a coronary artery from the wrong sinus of Valsalva with an interarterial, intramural, and/or intraconal course is a relatively rare congenital defect of the heart that may be associated with an increased risk of ischaemia of the myocardium and sudden death, notably in children and young adults. Data are limited regarding stratification of risk and long-term outcomes of these patients. In 2009, the Anomalous Coronary Artery Working Group formed the Congenital Heart Surgeons’ Society Registry of Anomalous Aortic Origin of a Coronary Artery to obtain information on large numbers of young patients with anomalous aortic origin of a coronary artery with the goal to better understand the natural and surgical history of this anomaly as well as to develop evidence-based treatment and management guidelines. In this report, we describe the data we have collected from the registry and the current state of the registry.

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Historical topography of the Hansaray: to the question of the periodization of building stages of the complex

Crimean Historical Review ◽

10.22378/kio.2020.2.32-51 ◽

2020 ◽

pp. 32-51

Author(s):

Dmytro A. Moisieiev ◽

◽

Andrey M. Korzhenkov ◽

Alexander N. Ovsyuchenko ◽

Alexander S. Lar`kov ◽

...

Keyword(s):

Seismogenic Zone ◽

Large Numbers ◽

History Of Construction ◽

Significant Damage ◽

The Crimea ◽

History Of ◽

Local Intensity ◽

High Degree ◽

The City

This work is about a study of ancient earthquake that significantly damaged the Khan’s Palace in Bakhchysarai at the end of the 1600’s. Today, however, it is almost impossible to find evidences of this catastrophic event in walls of the Hansaray. Our research shows that this may be explained by the large numbers of repairs and restorations that are constantly carried out on the monument. Only due to the fact that one object of the Khan’s Palace (“eastern building”) was raided in the 2013, we can fix the internal structure of its walls and find evidences of seismogenic deformation of the plinth arch with repair. We carried out a search for analogies to date this ancient seismic event. Similar damages were found in walls of the Eski-Durbe, monuments of the first palace of Crimean khans in Salachik (Zangirli madrassah and durbe of Haji-Geray) and the Great Kenassa from Chufut-Kale. The comparison of the chronology and characteristics of seismic deformations of “eastern structure” and other monuments gave the possibility to associate their damages with the “Salachik” earthquake of April 30, 1698, with seismic rupture located along the West-Crimean seismogenic zone and local intensity near Bakhchysarai Il = VIII–IX points (MSK-64). The magnitude of the event is not yet clear and can be estimated with more data. However, it is obvious, that the “Salachik” earthquake should be considered not only from the point of the seismotectonics and long-term seismic forecast for the Crimea, but also as major event of building periodization of the Hansaray. Our studies showed that this earthquake with high degree of probability had destroyed the Sahib Geray Divan Hall and had forced to make a significant rebuilding of the Khan’s Palace, which was unknown before our studies. These rebuilding significantly changed the monument and began the formation of late topography of the Hansaray, which has remained almost unchanged until now. Ancient part of the palace and Sahib Geray’s buildings sustained significant damage during the “Salachik” earthquake. From those buildings the history of construction of the palace complex, and also the city of Bakhchysarai, has began.

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Migraine and the Scope of Homeopathy

Homœopathic Links ◽

10.1055/s-0037-1606343 ◽

2017 ◽

Vol 30 (03) ◽

pp. 189-194

Author(s):

Pranali Wandile

Keyword(s):

Emergency Room ◽

Genetic Disorder ◽

The United States ◽

Medical Expenditure ◽

Large Numbers ◽

High Prevalence ◽

Migraine Episode ◽

History Of ◽

Patients Experience

AbstractMigraine is usually a genetic disorder. In the United States, every 10 seconds someone with a migraine goes to the emergency room. Approximately 1.2 million annual visits to the emergency room occur due to acute migraine attacks. About 90% of migraine patients have a family history of this illness. More than 90% of sufferers are unable to work or function normally during their migraine episode, affecting their quality of life and medical expenditure. While the majority of patients experience attacks once or twice a month, more than four million people suffer due to a chronic migraine with at least 15 migraine days per month. Migraine is often undiagnosed and undertreated and remains a poorly understood disease. In spite of the high prevalence of migraine and its effects on patients, research into migraine is still underfunded. In this article, the author reviewed facts about migraine, the best possible suggested treatments and the scope of homeopathy for its treatment. More research and clinical trials with improved trial designs are warranted. Publications of large numbers of homeopathic case studies worldwide, long-term observational studies of treated migraine patients having no further migraine recurrences are needed to see the role of homeopathy for the complete cure.

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Computer Analyses in Preventive Health Research

Methods of Information in Medicine ◽

10.1055/s-0038-1636287 ◽

1967 ◽

Vol 06 (01) ◽

pp. 8-14 ◽

Cited By ~ 11

Author(s):

M. F. Collen

Keyword(s):

Medical Research ◽

Preventive Medicine ◽

Health Research ◽

Large Scale ◽

Preventive Health ◽

New Era ◽

Large Numbers ◽

Normal Test ◽

Computer Analyses

The utilization of an automated multitest laboratory as a data acquisition center and of a computer for trie data processing and analysis permits large scale preventive medical research previously not feasible. Normal test values are easily generated for the particular population studied. Long-term epidemiological research on large numbers of persons becomes practical. It is our belief that the advent of automation and computers has introduced a new era of preventive medicine.

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Atypical Femoral Fracture in McCune-Albright Syndrome

Journal of Research in Orthopedic Science ◽

10.32598/jrosj.7.3.711.1 ◽

2020 ◽

Vol 7 (3) ◽

pp. 147-152

Author(s):

Salman Ghaffari ◽

◽

Mehran Razavipour ◽

Parastoo Mohammad Amini ◽

◽

...

Keyword(s):

Femoral Fracture ◽

Dynamic Compression ◽

Plate Fixation ◽

Medullary Canal ◽

Mccune Albright Syndrome ◽

Café Au Lait Spots ◽

History Of ◽

Albright Syndrome ◽

Mccune Albright

McCune-Albright Syndrome (MAS) is characterized by endocrinopathies, café-au-lait spots, and fibrous dysplasia. Bisphosphonates are the most prescribed treatment for reducing the pain but their long-term use has been associated with atypical fractures of cortical bones like femur in patients. We present a 23-year-old girl diagnosed with MAS. She had an atypical mid-shaft left femoral fracture that happened during simple walking. She also had a history of long-term use of alendronate. Because of the narrow medullary canal, we used 14 holes hybrid locking plate for the lateral aspect of the thigh to fix the fracture and 5 holes dynamic compression plate (instead of the intramedullary nail) in the anterior surface to double fix it, reducing the probability of device failure. With double plate fixation and discontinuation of alendronate, the complete union was achieved five months after surgery

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European Integration

10.3366/edinburgh/9781474455893.001.0001 ◽

2020 ◽

Author(s):

Johann P. Arnason

Keyword(s):

European Integration ◽

Eastern European ◽

The European Union ◽

Historical Processes ◽

History Of ◽

External Conditions ◽

Eastern European Countries ◽

Totalitarian Regimes ◽

The Eu

Different understandings of European integration, its background and present problems are represented in this book, but they share an emphasis on historical processes, geopolitical dynamics and regional diversity. The introduction surveys approaches to the question of European continuities and discontinuities, before going on to an overview of chapters. The following three contributions deal with long-term perspectives, including the question of Europe as a civilisational entity, the civilisational crisis of the twentieth century, marked by wars and totalitarian regimes, and a comparison of the European Union with the Habsburg Empire, with particular emphasis on similar crisis symptoms. The next three chapters discuss various aspects and contexts of the present crisis. Reflections on the Brexit controversy throw light on a longer history of intra-Union rivalry, enduring disputes and changing external conditions. An analysis of efforts to strengthen the EU’s legal and constitutional framework, and of resistances to them, highlights the unfinished agenda of integration. A closer look at the much-disputed Islamic presence in Europe suggests that an interdependent radicalization of Islamism and the European extreme right is a major factor in current political developments. Three concluding chapters adopt specific regional perspectives. Central and Eastern European countries, especially Poland, are following a path that leads to conflicts with dominant orientations of the EU, but this also raises questions about Europe’s future. The record of Scandinavian policies in relation to Europe exemplifies more general problems faced by peripheral regions. Finally, growing dissonances and divergences within the EU may strengthen the case for Eurasian perspectives.

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