scholarly journals Topographic Analysis of Wetlandscapes: Fractal Dimension and Scaling Properties

10.29007/c7r5 ◽  
2018 ◽  
Author(s):  
Leonardo Enrico Bertassello ◽  
P. Suresh Rao ◽  
Gianluca Botter ◽  
Antoine Aubeneau
Keyword(s):  
Fractal Dimension ◽  
The United States ◽  
Self Similarity ◽  
Topographic Analysis ◽  
Scaling Properties ◽  
Dem Analysis ◽  
Water Filling ◽  
Topographic Depressions ◽  
And Storage

Wetlands are ubiquitous topographic depressions on landscapes and form criticalelements of the mosaic of aquatic habitats. The role of wetlands in the global hydrological and biogeochemical cycles is intimately tied to their geometric characteristics. We used DEM analysis and local search algorithms to identify wetland attributes (maximum stage, surface area and storage volume) in four wetlandscapes across the United States. We then derived the exceedance cumulative density functions (cdfs) of these attributes for the identified wetlands, applied the concept of fractal dimension to investigate the variability in wetland’ shapes. Exponentially tempered Pareto distributions were fitted to DEM derived wetland attributes. In particular, the scaling exponents appear to remain constant through the progressive water-filling of the landscapes, suggesting self-similarity of wetland geometrical attributes. This tendency is also reproduced by the fractal dimension (D) of wetland shorelines, which remains constant across different water-filling levels. In addition, the variability in D is constrained within a narrow range (1 <D < 1.33) in all the four wetlandscapes. Finally, the comparison between wetlands identified by the DEM-based model are consistentwith actual data.

scholarly journals Riboflavin in Nutrition, Food Processing, and Analysis - A Review

2014 ◽  
Vol 3 (6) ◽  
pp. 23 ◽  
Author(s):  
Jennifer L. Golbach ◽  
Steven C. Ricke ◽  
Corliss A. O'Bryan ◽  
Philip G. Crandall
Keyword(s):  
Food Processing ◽  
The United States ◽  
The Body ◽  
Water Soluble ◽  
Cereal Grains ◽  
Nutrition And Health ◽  
Human Diet ◽  
Processing And Storage ◽  
And Storage

<p>Riboflavin is an essential micronutrient in the human diet. Because riboflavin is water soluble and not stored in appreciable amounts in the body, sources of riboflavin must be constantly consumed. In the United States many cereal grains are being fortified with riboflavin. In this review we briefly discuss the chemistry of riboflavin, the role of riboflavin in nutrition and health, effects of food processing and storage and means of measuring riboflavin in food and animal feeds.</p>

scholarly journals Digital Humanities in European Research Libraries

2021 ◽  
Vol 31 (1) ◽  
pp. 1-23
Author(s):  
Lotte Wilms
Keyword(s):  
Digital Humanities ◽  
The United States ◽  
Digital Collections ◽  
Diverse Range ◽  
Research Libraries ◽  
The United Kingdom ◽  
Digital Scholarship ◽  
The Us ◽  
And Storage

Libraries are increasingly becoming involved in digital humanities research beyond the offering of digital collections. This article examines how libraries in Europe deal with this shift in activities and how they compare with libraries in other parts of the world. This article builds on the results of surveys conducted in Australia, New Zealand, Hong Kong, the United States and the United Kingdom, and compares them with a survey conducted in Europe. We found that European libraries are mostly active in research supporting activities, such as digitisation and storage, while US libraries often include analysis in their activities. Funding comes from the library’s main budget and non-structural funding in a variety of forms. Staff working in DH roles has a diverse range of titles, with various forms of librarians being the most used. Analytical staff such as GIS specialists are only found in the US survey. All surveyed libraries agree that the biggest skill gap amongst their staff is in technical skills. When looking towards the future, European libraries see the role of digital humanities (or digital scholarship) within the library grow and are making plans to facilitate this change within their organisation by positioning themselves as an attractive research partner, by opening and increasing their digital collections and by improving the internal workings of the library.

The Role of Gender and Sensation Seeking in Film Choice

2008 ◽  
Vol 20 (3) ◽  
pp. 97-105 ◽  
Author(s):  
Smita C. Banerjee ◽  
Kathryn Greene ◽  
Marina Krcmar ◽  
Zhanna Bagdasarov ◽  
Dovile Ruginyte
Keyword(s):  
United States ◽  
Undergraduate Students ◽  
Sensation Seeking ◽  
Negative Mood ◽  
Positive Mood ◽  
The United States ◽  
High Arousal ◽  
Subject Design ◽  
Happy Mood

This study demonstrates the significance of individual difference factors, particularly gender and sensation seeking, in predicting media choice (examined through hypothetical descriptions of films that participants anticipated they would view). This study used a 2 (Positive mood/negative mood) × 2 (High arousal/low arousal) within-subject design with 544 undergraduate students recruited from a large northeastern university in the United States. Results showed that happy films and high arousal films were preferred over sad films and low-arousal films, respectively. In terms of gender differences, female viewers reported a greater preference than male viewers for happy-mood films. Also, male viewers reported a greater preference for high-arousal films compared to female viewers, and female viewers reported a greater preference for low-arousal films compared to male viewers. Finally, high sensation seekers reported a preference for high-arousal films. Implications for research design and importance of exploring media characteristics are discussed.

Beckett's Broken Circle: A Literary Fractal

2020 ◽  
Vol 29 (2) ◽  
pp. 196-215
Author(s):  
Luke Connolly
Keyword(s):  
Dynamic Chaos ◽  
Geometric Form ◽  
Self Similarity ◽  
Collision Point ◽  
Stable Order ◽  
Structural Principle ◽  
Recent Interest ◽  
Viable Solution ◽  
Specific Shape

This essay proposes that the picture of a broken circle encountered by Watt during the second part of his tale marks a crucial collision point between Beckett's literary and mathematical interests and triggers a process of fractal scaling self-similarity. Building on recent interest concerning the role of the mathematics and mathematical forms found in Beckett's work, I argue that the broken circle depicted in the picture from Watt is a geometric form which (re)appears within at least three interlocking scales throughout Beckett's novel-length prose: (i) its moment of arrival in the picture from Watt, (ii) a macroscopic reinscription in the names of the protagonists populating the five novels spanning Watt through to The Unnamable and (iii) buried within the narratological depths of How It Is. As a structural principle, the interminable irregularity of fractals offered Beckett a viable solution for what he considered the defining task of the modern artist: ‘to find a form to accommodate the mess’. Moreover, the specific shape selected for his fractal is shown to contain within its geometry one of Beckett's most universal and pressing concerns: the inevitable insufficiency of language. Therefore, although this essay restricts itself to examining Beckett's novel-length prose, the idea of a broken circle fractal promises to provide a valuable heuristic through which to reassess the author's other generic avenues. Fractals thus offer a means through which one can bind together the length and breadth of Beckett's oeuvre without ever reducing dynamic chaos to stable order.

Confronting the Problems of Professional Sports: A Public Policy Response to Franchise Relocation and Stadium Subsidization

2005 ◽  
Vol 1 ◽  
Author(s):  
Taylor F Brinkman
Keyword(s):  
Local Community ◽  
Professional Sports ◽  
The United States ◽  
Direct Result ◽  
Sports Organizations ◽  
Sports Leagues ◽  
Sports Finance ◽  
Sports Venues ◽  
Benefits And Costs

During the past decade, forty-six professional sports venues were constructed in the United States, while only 16 expansion teams were created by the major sports leagues. Nearly two thirds of these newly built stadiums and arenas were funded with public tax revenues, despite substantial evidence showing no positive economic impact of new sports stadium construction on local communities. In reviewing the economic literature, this article investigates the role of professional sports organizations in the construction and public subsidization of new sports venues. Franchise relocation and public stadium subsidization is a direct result of the monopoly power of professional sports leagues, whose franchise owners extract large subsidies from their host communities by threatening to relocate to viable alternative locations. After explaining how the most common methods of stadium subsidization project a disproportionate allocation of the benefits and costs of hosting a professional team to local community interests, this article outlines several considerations for local policymakers who seek to reinvigorate public discussion of equity concerns in professional sports finance.

After Victory

2019 ◽  
Author(s):  
G. John Ikenberry
Keyword(s):  
Comparative Politics ◽  
World Order ◽  
Balance Of Power ◽  
The United States ◽  
Big Bang ◽  
World Politics ◽  
Napoleonic Wars ◽  
Power Politics ◽  
The Cold War

The end of the Cold War was a “big bang” reminiscent of earlier moments after major wars, such as the end of the Napoleonic Wars in 1815 and the end of the world wars in 1919 and 1945. But what do states that win wars do with their newfound power, and how do they use it to build order? This book examines postwar settlements in modern history, arguing that powerful countries do seek to build stable and cooperative relations, but the type of order that emerges hinges on their ability to make commitments and restrain power. The book explains that only with the spread of democracy in the twentieth century and the innovative use of international institutions—both linked to the emergence of the United States as a world power—has order been created that goes beyond balance of power politics to exhibit “constitutional” characteristics. Blending comparative politics with international relations, and history with theory, the book will be of interest to anyone concerned with the organization of world order, the role of institutions in world politics, and the lessons of past postwar settlements for today.

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